422 files changed, 24690 insertions, 7901 deletions

diff --git a/drivers/Makefile b/drivers/Makefile
index 26ca9031ea49..adad2f3d438a 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_FC4)		+= fc4/
 obj-$(CONFIG_SCSI)              += scsi/
 obj-$(CONFIG_ATA)               += ata/
 obj-$(CONFIG_FUSION)            += message/
+obj-$(CONFIG_FIREWIRE)          += firewire/
 obj-$(CONFIG_IEEE1394)          += ieee1394/
 obj-y                           += cdrom/
 obj-y                           += auxdisplay/
diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c
index 1683e5c5b94c..1cbe61905824 100644
--- a/drivers/acpi/dispatcher/dsmethod.c
+++ b/drivers/acpi/dispatcher/dsmethod.c
@@ -231,8 +231,10 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
                  * Obtain the method mutex if necessary. Do not acquire mutex for a
                  * recursive call.
                  */
-                if (acpi_os_get_thread_id() !=
-                    obj_desc->method.mutex->mutex.owner_thread_id) {
+                if (!walk_state ||
+                    !obj_desc->method.mutex->mutex.owner_thread ||
+                    (walk_state->thread !=
+                     obj_desc->method.mutex->mutex.owner_thread)) {
                         /*
                          * Acquire the method mutex. This releases the interpreter if we
                          * block (and reacquires it before it returns)
@@ -246,14 +248,14 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
                         }
 
                         /* Update the mutex and walk info and save the original sync_level */
-                        obj_desc->method.mutex->mutex.owner_thread_id =
-                                acpi_os_get_thread_id();
 
                         if (walk_state) {
                                 obj_desc->method.mutex->mutex.
                                     original_sync_level =
                                     walk_state->thread->current_sync_level;
 
+                                obj_desc->method.mutex->mutex.owner_thread =
+                                    walk_state->thread;
                                 walk_state->thread->current_sync_level =
                                     obj_desc->method.sync_level;
                         } else {
@@ -567,7 +569,7 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc,
 
                         acpi_os_release_mutex(method_desc->method.mutex->mutex.
                                               os_mutex);
-                        method_desc->method.mutex->mutex.owner_thread_id = ACPI_MUTEX_NOT_ACQUIRED;
+                        method_desc->method.mutex->mutex.owner_thread = NULL;
                 }
         }
 
diff --git a/drivers/acpi/dispatcher/dsopcode.c b/drivers/acpi/dispatcher/dsopcode.c
index 6c6104a7a247..fc9da4879cbf 100644
--- a/drivers/acpi/dispatcher/dsopcode.c
+++ b/drivers/acpi/dispatcher/dsopcode.c
@@ -866,8 +866,7 @@ acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state,
                     ((op->common.parent->common.aml_opcode != AML_PACKAGE_OP) &&
                      (op->common.parent->common.aml_opcode !=
                       AML_VAR_PACKAGE_OP)
-                     && (op->common.parent->common.aml_opcode !=
-                         AML_NAME_OP))) {
+                     && (op->common.parent->common.aml_opcode != AML_NAME_OP))) {
                         walk_state->result_obj = obj_desc;
                 }
         }
diff --git a/drivers/acpi/dispatcher/dsutils.c b/drivers/acpi/dispatcher/dsutils.c
index e4073e05a75c..71503c036f7c 100644
--- a/drivers/acpi/dispatcher/dsutils.c
+++ b/drivers/acpi/dispatcher/dsutils.c
@@ -556,10 +556,9 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state,
                                          * indicate this to the interpreter, set the
                                          * object to the root
                                          */
-                                        obj_desc =
-                                            ACPI_CAST_PTR(union
-                                                          acpi_operand_object,
-                                                          acpi_gbl_root_node);
+                                        obj_desc = ACPI_CAST_PTR(union
+                                                                 acpi_operand_object,
+                                                                 acpi_gbl_root_node);
                                         status = AE_OK;
                                 } else {
                                         /*
diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c
index 16c8e38b51ef..5afcdd9c7449 100644
--- a/drivers/acpi/dispatcher/dswstate.c
+++ b/drivers/acpi/dispatcher/dswstate.c
@@ -630,12 +630,9 @@ struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread)
  *
  ******************************************************************************/
 
-struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id,
-                                                  union acpi_parse_object
-                                                  *origin,
-                                                  union acpi_operand_object
-                                                  *method_desc,
-                                                  struct acpi_thread_state
+struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id, union acpi_parse_object
+                                                  *origin, union acpi_operand_object
+                                                  *method_desc, struct acpi_thread_state
                                                   *thread)
 {
         struct acpi_walk_state *walk_state;
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index e08cf98f504f..82f496c07675 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -147,9 +147,10 @@ static inline int acpi_ec_check_status(struct acpi_ec *ec, enum ec_event event,
         return 0;
 }
 
-static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, unsigned count)
+static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event,
+                        unsigned count, int force_poll)
 {
-        if (acpi_ec_mode == EC_POLL) {
+        if (unlikely(force_poll) || acpi_ec_mode == EC_POLL) {
                 unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY);
                 while (time_before(jiffies, delay)) {
                         if (acpi_ec_check_status(ec, event, 0))
@@ -173,14 +174,15 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, unsigned count)
 
 static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
                                         const u8 * wdata, unsigned wdata_len,
-                                        u8 * rdata, unsigned rdata_len)
+                                        u8 * rdata, unsigned rdata_len,
+                                        int force_poll)
 {
         int result = 0;
         unsigned count = atomic_read(&ec->event_count);
         acpi_ec_write_cmd(ec, command);
 
         for (; wdata_len > 0; --wdata_len) {
-                result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count);
+                result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count, force_poll);
                 if (result) {
                         printk(KERN_ERR PREFIX
                                "write_cmd timeout, command = %d\n", command);
@@ -191,7 +193,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
         }
 
         if (!rdata_len) {
-                result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count);
+                result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, count, force_poll);
                 if (result) {
                         printk(KERN_ERR PREFIX
                                "finish-write timeout, command = %d\n", command);
@@ -202,7 +204,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
         }
 
         for (; rdata_len > 0; --rdata_len) {
-                result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1, count);
+                result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1, count, force_poll);
                 if (result) {
                         printk(KERN_ERR PREFIX "read timeout, command = %d\n",
                                command);
@@ -217,7 +219,8 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
 
 static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
                                const u8 * wdata, unsigned wdata_len,
-                               u8 * rdata, unsigned rdata_len)
+                               u8 * rdata, unsigned rdata_len,
+                               int force_poll)
 {
         int status;
         u32 glk;
@@ -240,7 +243,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
         /* Make sure GPE is enabled before doing transaction */
         acpi_enable_gpe(NULL, ec->gpe, ACPI_NOT_ISR);
 
-        status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0);
+        status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0, 0);
         if (status) {
                 printk(KERN_DEBUG PREFIX
                        "input buffer is not empty, aborting transaction\n");
@@ -249,7 +252,8 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 
         status = acpi_ec_transaction_unlocked(ec, command,
                                               wdata, wdata_len,
-                                              rdata, rdata_len);
+                                              rdata, rdata_len,
+                                              force_poll);
 
       end:
 
@@ -267,12 +271,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
 int acpi_ec_burst_enable(struct acpi_ec *ec)
 {
         u8 d;
-        return acpi_ec_transaction(ec, ACPI_EC_BURST_ENABLE, NULL, 0, &d, 1);
+        return acpi_ec_transaction(ec, ACPI_EC_BURST_ENABLE, NULL, 0, &d, 1, 0);
 }
 
 int acpi_ec_burst_disable(struct acpi_ec *ec)
 {
-        return acpi_ec_transaction(ec, ACPI_EC_BURST_DISABLE, NULL, 0, NULL, 0);
+        return acpi_ec_transaction(ec, ACPI_EC_BURST_DISABLE, NULL, 0, NULL, 0, 0);
 }
 
 static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data)
@@ -281,7 +285,7 @@ static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data)
         u8 d;
 
         result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_READ,
-                                     &address, 1, &d, 1);
+                                     &address, 1, &d, 1, 0);
         *data = d;
         return result;
 }
@@ -290,7 +294,7 @@ static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data)
 {
         u8 wdata[2] = { address, data };
         return acpi_ec_transaction(ec, ACPI_EC_COMMAND_WRITE,
-                                   wdata, 2, NULL, 0);
+                                   wdata, 2, NULL, 0, 0);
 }
 
 /*
@@ -349,13 +353,15 @@ EXPORT_SYMBOL(ec_write);
 
 int ec_transaction(u8 command,
                    const u8 * wdata, unsigned wdata_len,
-                   u8 * rdata, unsigned rdata_len)
+                   u8 * rdata, unsigned rdata_len,
+                   int force_poll)
 {
         if (!first_ec)
                 return -ENODEV;
 
         return acpi_ec_transaction(first_ec, command, wdata,
-                                   wdata_len, rdata, rdata_len);
+                                   wdata_len, rdata, rdata_len,
+                                   force_poll);
 }
 
 EXPORT_SYMBOL(ec_transaction);
@@ -374,7 +380,7 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 * data)
          * bit to be cleared (and thus clearing the interrupt source).
          */
 
-        result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_QUERY, NULL, 0, &d, 1);
+        result = acpi_ec_transaction(ec, ACPI_EC_COMMAND_QUERY, NULL, 0, &d, 1, 0);
         if (result)
                 return result;
 
@@ -410,6 +416,7 @@ static u32 acpi_ec_gpe_handler(void *data)
         acpi_status status = AE_OK;
         u8 value;
         struct acpi_ec *ec = data;
+
         atomic_inc(&ec->event_count);
 
         if (acpi_ec_mode == EC_INTR) {
diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c
index 635ba449ebc2..e22f4a973c0f 100644
--- a/drivers/acpi/events/evgpe.c
+++ b/drivers/acpi/events/evgpe.c
@@ -341,9 +341,8 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
 
         /* A Non-NULL gpe_device means this is a GPE Block Device */
 
-        obj_desc =
-            acpi_ns_get_attached_object((struct acpi_namespace_node *)
-                                        gpe_device);
+        obj_desc = acpi_ns_get_attached_object((struct acpi_namespace_node *)
+                                               gpe_device);
         if (!obj_desc || !obj_desc->device.gpe_block) {
                 return (NULL);
         }
diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c
index ad5bc76edf46..902c287b3a4f 100644
--- a/drivers/acpi/events/evgpeblk.c
+++ b/drivers/acpi/events/evgpeblk.c
@@ -1033,8 +1033,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
 
                         if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
                              ACPI_GPE_DISPATCH_METHOD)
-                            && (gpe_event_info->
-                                flags & ACPI_GPE_TYPE_RUNTIME)) {
+                            && (gpe_event_info->flags & ACPI_GPE_TYPE_RUNTIME)) {
                                 gpe_enabled_count++;
                         }
 
diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c
index cae786ca8600..21cb749d0c75 100644
--- a/drivers/acpi/events/evmisc.c
+++ b/drivers/acpi/events/evmisc.c
@@ -196,15 +196,12 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node,
                 notify_info->notify.value = (u16) notify_value;
                 notify_info->notify.handler_obj = handler_obj;
 
-                acpi_ex_exit_interpreter();
-
-                acpi_ev_notify_dispatch(notify_info);
-
-                status = acpi_ex_enter_interpreter();
+                status =
+                    acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch,
+                                    notify_info);
                 if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
+                        acpi_ut_delete_generic_state(notify_info);
                 }
-
         }
 
         if (!handler_obj) {
@@ -323,8 +320,9 @@ static u32 acpi_ev_global_lock_handler(void *context)
                 acpi_gbl_global_lock_acquired = TRUE;
                 /* Send a unit to the semaphore */
 
-                if (ACPI_FAILURE(acpi_os_signal_semaphore(
-                        acpi_gbl_global_lock_semaphore, 1))) {
+                if (ACPI_FAILURE
+                    (acpi_os_signal_semaphore
+                     (acpi_gbl_global_lock_semaphore, 1))) {
                         ACPI_ERROR((AE_INFO,
                                     "Could not signal Global Lock semaphore"));
                 }
@@ -450,7 +448,9 @@ acpi_status acpi_ev_acquire_global_lock(u16 timeout)
         }
 
         if (ACPI_FAILURE(status)) {
-                status = acpi_ex_system_wait_mutex(acpi_gbl_global_lock_mutex, timeout);
+                status =
+                    acpi_ex_system_wait_mutex(acpi_gbl_global_lock_mutex,
+                                              timeout);
         }
         if (ACPI_FAILURE(status)) {
                 return_ACPI_STATUS(status);
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index 96b0e8431748..e99f0c435a47 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -291,7 +291,6 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
                                u32 bit_width, acpi_integer * value)
 {
         acpi_status status;
-        acpi_status status2;
         acpi_adr_space_handler handler;
         acpi_adr_space_setup region_setup;
         union acpi_operand_object *handler_desc;
@@ -345,7 +344,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
                  * setup will potentially execute control methods
                  * (e.g., _REG method for this region)
                  */
-                acpi_ex_exit_interpreter();
+                acpi_ex_relinquish_interpreter();
 
                 status = region_setup(region_obj, ACPI_REGION_ACTIVATE,
                                       handler_desc->address_space.context,
@@ -353,10 +352,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 
                 /* Re-enter the interpreter */
 
-                status2 = acpi_ex_enter_interpreter();
-                if (ACPI_FAILURE(status2)) {
-                        return_ACPI_STATUS(status2);
-                }
+                acpi_ex_reacquire_interpreter();
 
                 /* Check for failure of the Region Setup */
 
@@ -409,7 +405,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
                  * exit the interpreter because the handler *might* block -- we don't
                  * know what it will do, so we can't hold the lock on the intepreter.
                  */
-                acpi_ex_exit_interpreter();
+                acpi_ex_relinquish_interpreter();
         }
 
         /* Call the handler */
@@ -430,10 +426,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
                  * We just returned from a non-default handler, we must re-enter the
                  * interpreter
                  */
-                status2 = acpi_ex_enter_interpreter();
-                if (ACPI_FAILURE(status2)) {
-                        return_ACPI_STATUS(status2);
-                }
+                acpi_ex_reacquire_interpreter();
         }
 
         return_ACPI_STATUS(status);
diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c
index a4fa7e6822a3..400d90fca966 100644
--- a/drivers/acpi/events/evrgnini.c
+++ b/drivers/acpi/events/evrgnini.c
@@ -228,7 +228,8 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
 
                                 /* Install a handler for this PCI root bridge */
 
-                                status = acpi_install_address_space_handler((acpi_handle) pci_root_node, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL);
+                                status =
+                                    acpi_install_address_space_handler((acpi_handle) pci_root_node, ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL);
                                 if (ACPI_FAILURE(status)) {
                                         if (status == AE_SAME_HANDLER) {
                                                 /*
diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c
index a3379bafa676..6d866a01f5f4 100644
--- a/drivers/acpi/events/evxface.c
+++ b/drivers/acpi/events/evxface.c
@@ -91,7 +91,6 @@ acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
 
 ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
 #endif                          /*  ACPI_FUTURE_USAGE  */
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_install_fixed_event_handler
@@ -768,11 +767,9 @@ acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle)
                 return (AE_BAD_PARAMETER);
         }
 
-        status = acpi_ex_enter_interpreter();
-        if (ACPI_FAILURE(status)) {
-                return (status);
-        }
+        /* Must lock interpreter to prevent race conditions */
 
+        acpi_ex_enter_interpreter();
         status = acpi_ev_acquire_global_lock(timeout);
         acpi_ex_exit_interpreter();
 
diff --git a/drivers/acpi/events/evxfevnt.c b/drivers/acpi/events/evxfevnt.c
index 17065e98807c..9cbd3414a574 100644
--- a/drivers/acpi/events/evxfevnt.c
+++ b/drivers/acpi/events/evxfevnt.c
@@ -472,7 +472,6 @@ acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_clear_gpe)
-
 #ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
@@ -568,7 +567,6 @@ acpi_get_gpe_status(acpi_handle gpe_device,
 
 ACPI_EXPORT_SYMBOL(acpi_get_gpe_status)
 #endif                          /*  ACPI_FUTURE_USAGE  */
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_install_gpe_block
diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c
index d470e8b1f4ea..79f2c0d42c06 100644
--- a/drivers/acpi/executer/exconvrt.c
+++ b/drivers/acpi/executer/exconvrt.c
@@ -512,9 +512,8 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc,
                  * Create a new string object and string buffer
                  * (-1 because of extra separator included in string_length from above)
                  */
-                return_desc =
-                    acpi_ut_create_string_object((acpi_size)
-                                                 (string_length - 1));
+                return_desc = acpi_ut_create_string_object((acpi_size)
+                                                           (string_length - 1));
                 if (!return_desc) {
                         return_ACPI_STATUS(AE_NO_MEMORY);
                 }
diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c
index ae97812681a3..6e9a23e47fef 100644
--- a/drivers/acpi/executer/excreate.c
+++ b/drivers/acpi/executer/excreate.c
@@ -50,7 +50,6 @@
 
 #define _COMPONENT          ACPI_EXECUTER
 ACPI_MODULE_NAME("excreate")
-
 #ifndef ACPI_NO_METHOD_EXECUTION
 /*******************************************************************************
  *
@@ -583,10 +582,7 @@ acpi_ex_create_method(u8 * aml_start,
          * Get the sync_level. If method is serialized, a mutex will be
          * created for this method when it is parsed.
          */
-        if (acpi_gbl_all_methods_serialized) {
-                obj_desc->method.sync_level = 0;
-                obj_desc->method.method_flags |= AML_METHOD_SERIALIZED;
-        } else if (method_flags & AML_METHOD_SERIALIZED) {
+        if (method_flags & AML_METHOD_SERIALIZED) {
                 /*
                  * ACPI 1.0: sync_level = 0
                  * ACPI 2.0: sync_level = sync_level in method declaration
diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c
index 1a73c14df2c5..51c9c29987c3 100644
--- a/drivers/acpi/executer/exdump.c
+++ b/drivers/acpi/executer/exdump.c
@@ -134,7 +134,7 @@ static struct acpi_exdump_info acpi_ex_dump_method[8] = {
 static struct acpi_exdump_info acpi_ex_dump_mutex[5] = {
         {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_mutex), NULL},
         {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(mutex.sync_level), "Sync Level"},
-        {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread_id), "Owner Thread"},
+        {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.owner_thread), "Owner Thread"},
         {ACPI_EXD_UINT16, ACPI_EXD_OFFSET(mutex.acquisition_depth),
          "Acquire Depth"},
         {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(mutex.os_mutex), "OsMutex"}
@@ -451,9 +451,8 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth)
 
         ACPI_FUNCTION_NAME(ex_dump_operand)
 
-            if (!
-                ((ACPI_LV_EXEC & acpi_dbg_level)
-                 && (_COMPONENT & acpi_dbg_layer))) {
+            if (!((ACPI_LV_EXEC & acpi_dbg_level)
+                  && (_COMPONENT & acpi_dbg_layer))) {
                 return;
         }
 
@@ -844,9 +843,8 @@ void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags)
         ACPI_FUNCTION_ENTRY();
 
         if (!flags) {
-                if (!
-                    ((ACPI_LV_OBJECTS & acpi_dbg_level)
-                     && (_COMPONENT & acpi_dbg_layer))) {
+                if (!((ACPI_LV_OBJECTS & acpi_dbg_level)
+                      && (_COMPONENT & acpi_dbg_layer))) {
                         return;
                 }
         }
@@ -1011,9 +1009,8 @@ acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags)
         }
 
         if (!flags) {
-                if (!
-                    ((ACPI_LV_OBJECTS & acpi_dbg_level)
-                     && (_COMPONENT & acpi_dbg_layer))) {
+                if (!((ACPI_LV_OBJECTS & acpi_dbg_level)
+                      && (_COMPONENT & acpi_dbg_layer))) {
                         return_VOID;
                 }
         }
diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c
index 4eb883bda6ae..6748e3ef0997 100644
--- a/drivers/acpi/executer/exmutex.c
+++ b/drivers/acpi/executer/exmutex.c
@@ -66,9 +66,10 @@ acpi_ex_link_mutex(union acpi_operand_object *obj_desc,
  *
  ******************************************************************************/
 
-void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc,
-                          struct acpi_thread_state *thread)
+void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc)
 {
+        struct acpi_thread_state *thread = obj_desc->mutex.owner_thread;
+
         if (!thread) {
                 return;
         }
@@ -173,13 +174,16 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
 
         /* Support for multiple acquires by the owning thread */
 
-        if (obj_desc->mutex.owner_thread_id == acpi_os_get_thread_id()) {
-                /*
-                 * The mutex is already owned by this thread, just increment the
-                 * acquisition depth
-                 */
-                obj_desc->mutex.acquisition_depth++;
-                return_ACPI_STATUS(AE_OK);
+        if (obj_desc->mutex.owner_thread) {
+                if (obj_desc->mutex.owner_thread->thread_id ==
+                    walk_state->thread->thread_id) {
+                        /*
+                         * The mutex is already owned by this thread, just increment the
+                         * acquisition depth
+                         */
+                        obj_desc->mutex.acquisition_depth++;
+                        return_ACPI_STATUS(AE_OK);
+                }
         }
 
         /* Acquire the mutex, wait if necessary. Special case for Global Lock */
@@ -202,7 +206,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc,
 
         /* Have the mutex: update mutex and walk info and save the sync_level */
 
-        obj_desc->mutex.owner_thread_id = acpi_os_get_thread_id();
+        obj_desc->mutex.owner_thread = walk_state->thread;
         obj_desc->mutex.acquisition_depth = 1;
         obj_desc->mutex.original_sync_level =
             walk_state->thread->current_sync_level;
@@ -242,7 +246,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 
         /* The mutex must have been previously acquired in order to release it */
 
-        if (!obj_desc->mutex.owner_thread_id) {
+        if (!obj_desc->mutex.owner_thread) {
                 ACPI_ERROR((AE_INFO,
                             "Cannot release Mutex [%4.4s], not acquired",
                             acpi_ut_get_node_name(obj_desc->mutex.node)));
@@ -262,14 +266,15 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
          * The Mutex is owned, but this thread must be the owner.
          * Special case for Global Lock, any thread can release
          */
-        if ((obj_desc->mutex.owner_thread_id !=
+        if ((obj_desc->mutex.owner_thread->thread_id !=
              walk_state->thread->thread_id)
             && (obj_desc->mutex.os_mutex != acpi_gbl_global_lock_mutex)) {
                 ACPI_ERROR((AE_INFO,
                             "Thread %lX cannot release Mutex [%4.4s] acquired by thread %lX",
                             (unsigned long)walk_state->thread->thread_id,
                             acpi_ut_get_node_name(obj_desc->mutex.node),
-                            (unsigned long)obj_desc->mutex.owner_thread_id));
+                            (unsigned long)obj_desc->mutex.owner_thread->
+                            thread_id));
                 return_ACPI_STATUS(AE_AML_NOT_OWNER);
         }
 
@@ -296,7 +301,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 
         /* Unlink the mutex from the owner's list */
 
-        acpi_ex_unlink_mutex(obj_desc, walk_state->thread);
+        acpi_ex_unlink_mutex(obj_desc);
 
         /* Release the mutex, special case for Global Lock */
 
@@ -308,7 +313,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
 
         /* Update the mutex and restore sync_level */
 
-        obj_desc->mutex.owner_thread_id = ACPI_MUTEX_NOT_ACQUIRED;
+        obj_desc->mutex.owner_thread = NULL;
         walk_state->thread->current_sync_level =
             obj_desc->mutex.original_sync_level;
 
@@ -363,7 +368,7 @@ void acpi_ex_release_all_mutexes(struct acpi_thread_state *thread)
 
                 /* Mark mutex unowned */
 
-                obj_desc->mutex.owner_thread_id = ACPI_MUTEX_NOT_ACQUIRED;
+                obj_desc->mutex.owner_thread = NULL;
 
                 /* Update Thread sync_level (Last mutex is the important one) */
 
diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c
index 1ee4fb1175c6..308eae52dc05 100644
--- a/drivers/acpi/executer/exnames.c
+++ b/drivers/acpi/executer/exnames.c
@@ -177,8 +177,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
 
         ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "Bytes from stream:\n"));
 
-        for (index = 0;
-             (index < ACPI_NAME_SIZE)
+        for (index = 0; (index < ACPI_NAME_SIZE)
              && (acpi_ut_valid_acpi_char(*aml_address, 0)); index++) {
                 char_buf[index] = *aml_address++;
                 ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index]));
diff --git a/drivers/acpi/executer/exprep.c b/drivers/acpi/executer/exprep.c
index a6696621ff1b..efe5d4b461a4 100644
--- a/drivers/acpi/executer/exprep.c
+++ b/drivers/acpi/executer/exprep.c
@@ -242,7 +242,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc,
                                             obj_desc->common_field.bit_length,
                                             0xFFFFFFFF
                                             /* Temp until we pass region_length as parameter */
-                                            );
+                    );
                 bit_length = byte_alignment * 8;
 #endif
 
diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c
index ba761862a599..09d897b3f6d5 100644
--- a/drivers/acpi/executer/exresop.c
+++ b/drivers/acpi/executer/exresop.c
@@ -354,8 +354,7 @@ acpi_ex_resolve_operands(u16 opcode,
                         if ((opcode == AML_STORE_OP) &&
                             (ACPI_GET_OBJECT_TYPE(*stack_ptr) ==
                              ACPI_TYPE_LOCAL_REFERENCE)
-                            && ((*stack_ptr)->reference.opcode ==
-                                AML_INDEX_OP)) {
+                            && ((*stack_ptr)->reference.opcode == AML_INDEX_OP)) {
                                 goto next_operand;
                         }
                         break;
diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c
index b2edf620ba89..9460baff3032 100644
--- a/drivers/acpi/executer/exsystem.c
+++ b/drivers/acpi/executer/exsystem.c
@@ -66,7 +66,6 @@ ACPI_MODULE_NAME("exsystem")
 acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
 {
         acpi_status status;
-        acpi_status status2;
 
         ACPI_FUNCTION_TRACE(ex_system_wait_semaphore);
 
@@ -79,7 +78,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
 
                 /* We must wait, so unlock the interpreter */
 
-                acpi_ex_exit_interpreter();
+                acpi_ex_relinquish_interpreter();
 
                 status = acpi_os_wait_semaphore(semaphore, 1, timeout);
 
@@ -89,13 +88,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
 
                 /* Reacquire the interpreter */
 
-                status2 = acpi_ex_enter_interpreter();
-                if (ACPI_FAILURE(status2)) {
-
-                        /* Report fatal error, could not acquire interpreter */
-
-                        return_ACPI_STATUS(status2);
-                }
+                acpi_ex_reacquire_interpreter();
         }
 
         return_ACPI_STATUS(status);
@@ -119,7 +112,6 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_semaphore semaphore, u16 timeout)
 acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
 {
         acpi_status status;
-        acpi_status status2;
 
         ACPI_FUNCTION_TRACE(ex_system_wait_mutex);
 
@@ -132,7 +124,7 @@ acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
 
                 /* We must wait, so unlock the interpreter */
 
-                acpi_ex_exit_interpreter();
+                acpi_ex_relinquish_interpreter();
 
                 status = acpi_os_acquire_mutex(mutex, timeout);
 
@@ -142,13 +134,7 @@ acpi_status acpi_ex_system_wait_mutex(acpi_mutex mutex, u16 timeout)
 
                 /* Reacquire the interpreter */
 
-                status2 = acpi_ex_enter_interpreter();
-                if (ACPI_FAILURE(status2)) {
-
-                        /* Report fatal error, could not acquire interpreter */
-
-                        return_ACPI_STATUS(status2);
-                }
+                acpi_ex_reacquire_interpreter();
         }
 
         return_ACPI_STATUS(status);
@@ -209,20 +195,18 @@ acpi_status acpi_ex_system_do_stall(u32 how_long)
 
 acpi_status acpi_ex_system_do_suspend(acpi_integer how_long)
 {
-        acpi_status status;
-
         ACPI_FUNCTION_ENTRY();
 
         /* Since this thread will sleep, we must release the interpreter */
 
-        acpi_ex_exit_interpreter();
+        acpi_ex_relinquish_interpreter();
 
         acpi_os_sleep(how_long);
 
         /* And now we must get the interpreter again */
 
-        status = acpi_ex_enter_interpreter();
-        return (status);
+        acpi_ex_reacquire_interpreter();
+        return (AE_OK);
 }
 
 /*******************************************************************************
diff --git a/drivers/acpi/executer/exutils.c b/drivers/acpi/executer/exutils.c
index aea461f3a48c..6b0aeccbb69b 100644
--- a/drivers/acpi/executer/exutils.c
+++ b/drivers/acpi/executer/exutils.c
@@ -76,14 +76,15 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base);
  *
  * PARAMETERS:  None
  *
- * RETURN:      Status
+ * RETURN:      None
  *
- * DESCRIPTION: Enter the interpreter execution region.  Failure to enter
- *              the interpreter region is a fatal system error
+ * DESCRIPTION: Enter the interpreter execution region. Failure to enter
+ *              the interpreter region is a fatal system error. Used in
+ *              conjunction with exit_interpreter.
  *
  ******************************************************************************/
 
-acpi_status acpi_ex_enter_interpreter(void)
+void acpi_ex_enter_interpreter(void)
 {
         acpi_status status;
 
@@ -91,31 +92,55 @@ acpi_status acpi_ex_enter_interpreter(void)
 
         status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER);
         if (ACPI_FAILURE(status)) {
-                ACPI_ERROR((AE_INFO, "Could not acquire interpreter mutex"));
+                ACPI_ERROR((AE_INFO,
+                            "Could not acquire AML Interpreter mutex"));
         }
 
-        return_ACPI_STATUS(status);
+        return_VOID;
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ex_exit_interpreter
+ * FUNCTION:    acpi_ex_reacquire_interpreter
  *
  * PARAMETERS:  None
  *
  * RETURN:      None
  *
- * DESCRIPTION: Exit the interpreter execution region
+ * DESCRIPTION: Reacquire the interpreter execution region from within the
+ *              interpreter code. Failure to enter the interpreter region is a
+ *              fatal system error. Used in  conjuction with
+ *              relinquish_interpreter
+ *
+ ******************************************************************************/
+
+void acpi_ex_reacquire_interpreter(void)
+{
+        ACPI_FUNCTION_TRACE(ex_reacquire_interpreter);
+
+        /*
+         * If the global serialized flag is set, do not release the interpreter,
+         * since it was not actually released by acpi_ex_relinquish_interpreter.
+         * This forces the interpreter to be single threaded.
+         */
+        if (!acpi_gbl_all_methods_serialized) {
+                acpi_ex_enter_interpreter();
+        }
+
+        return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_exit_interpreter
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
  *
- * Cases where the interpreter is unlocked:
- *      1) Completion of the execution of a control method
- *      2) Method blocked on a Sleep() AML opcode
- *      3) Method blocked on an Acquire() AML opcode
- *      4) Method blocked on a Wait() AML opcode
- *      5) Method blocked to acquire the global lock
- *      6) Method blocked to execute a serialized control method that is
- *          already executing
- *      7) About to invoke a user-installed opregion handler
+ * DESCRIPTION: Exit the interpreter execution region. This is the top level
+ *              routine used to exit the interpreter when all processing has
+ *              been completed.
  *
  ******************************************************************************/
 
@@ -127,7 +152,46 @@ void acpi_ex_exit_interpreter(void)
 
         status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
         if (ACPI_FAILURE(status)) {
-                ACPI_ERROR((AE_INFO, "Could not release interpreter mutex"));
+                ACPI_ERROR((AE_INFO,
+                            "Could not release AML Interpreter mutex"));
+        }
+
+        return_VOID;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ex_relinquish_interpreter
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Exit the interpreter execution region, from within the
+ *              interpreter - before attempting an operation that will possibly
+ *              block the running thread.
+ *
+ * Cases where the interpreter is unlocked internally
+ *      1) Method to be blocked on a Sleep() AML opcode
+ *      2) Method to be blocked on an Acquire() AML opcode
+ *      3) Method to be blocked on a Wait() AML opcode
+ *      4) Method to be blocked to acquire the global lock
+ *      5) Method to be blocked waiting to execute a serialized control method
+ *          that is currently executing
+ *      6) About to invoke a user-installed opregion handler
+ *
+ ******************************************************************************/
+
+void acpi_ex_relinquish_interpreter(void)
+{
+        ACPI_FUNCTION_TRACE(ex_relinquish_interpreter);
+
+        /*
+         * If the global serialized flag is set, do not release the interpreter.
+         * This forces the interpreter to be single threaded.
+         */
+        if (!acpi_gbl_all_methods_serialized) {
+                acpi_ex_exit_interpreter();
         }
 
         return_VOID;
@@ -141,8 +205,8 @@ void acpi_ex_exit_interpreter(void)
  *
  * RETURN:      none
  *
- * DESCRIPTION: Truncate a number to 32-bits if the currently executing method
- *              belongs to a 32-bit ACPI table.
+ * DESCRIPTION: Truncate an ACPI Integer to 32 bits if the execution mode is
+ *              32-bit, as determined by the revision of the DSDT.
  *
  ******************************************************************************/
 
diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index c84b1faba28c..76c525dc590b 100644
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -152,7 +152,6 @@ acpi_get_firmware_waking_vector(acpi_physical_address * physical_address)
 
 ACPI_EXPORT_SYMBOL(acpi_get_firmware_waking_vector)
 #endif
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enter_sleep_state_prep
diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c
index 26fd0dd6953d..97b2ac57c16b 100644
--- a/drivers/acpi/namespace/nseval.c
+++ b/drivers/acpi/namespace/nseval.c
@@ -75,7 +75,7 @@ ACPI_MODULE_NAME("nseval")
  * MUTEX:       Locks interpreter
  *
  ******************************************************************************/
-acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
+acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info)
 {
         acpi_status status;
 
@@ -154,11 +154,7 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
                  * Execute the method via the interpreter. The interpreter is locked
                  * here before calling into the AML parser
                  */
-                status = acpi_ex_enter_interpreter();
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-
+                acpi_ex_enter_interpreter();
                 status = acpi_ps_execute_method(info);
                 acpi_ex_exit_interpreter();
         } else {
@@ -182,10 +178,7 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
                  * resolution, we must lock it because we could access an opregion.
                  * The opregion access code assumes that the interpreter is locked.
                  */
-                status = acpi_ex_enter_interpreter();
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
+                acpi_ex_enter_interpreter();
 
                 /* Function has a strange interface */
 
diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c
index c4ab615f77fe..33db2241044e 100644
--- a/drivers/acpi/namespace/nsinit.c
+++ b/drivers/acpi/namespace/nsinit.c
@@ -214,7 +214,7 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
                         u32 level, void *context, void **return_value)
 {
         acpi_object_type type;
-        acpi_status status;
+        acpi_status status = AE_OK;
         struct acpi_init_walk_info *info =
             (struct acpi_init_walk_info *)context;
         struct acpi_namespace_node *node =
@@ -268,10 +268,7 @@ acpi_ns_init_one_object(acpi_handle obj_handle,
         /*
          * Must lock the interpreter before executing AML code
          */
-        status = acpi_ex_enter_interpreter();
-        if (ACPI_FAILURE(status)) {
-                return (status);
-        }
+        acpi_ex_enter_interpreter();
 
         /*
          * Each of these types can contain executable AML code within the
diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c
index 94eb8f332d94..280b8357c46c 100644
--- a/drivers/acpi/namespace/nswalk.c
+++ b/drivers/acpi/namespace/nswalk.c
@@ -65,10 +65,8 @@ ACPI_MODULE_NAME("nswalk")
  *              within Scope is returned.
  *
  ******************************************************************************/
-struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type,
-                                                  struct acpi_namespace_node
-                                                  *parent_node,
-                                                  struct acpi_namespace_node
+struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, struct acpi_namespace_node
+                                                  *parent_node, struct acpi_namespace_node
                                                   *child_node)
 {
         struct acpi_namespace_node *next_node = NULL;
diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c
index 8904d0fae6a2..be4f2899de74 100644
--- a/drivers/acpi/namespace/nsxfeval.c
+++ b/drivers/acpi/namespace/nsxfeval.c
@@ -48,7 +48,6 @@
 
 #define _COMPONENT          ACPI_NAMESPACE
 ACPI_MODULE_NAME("nsxfeval")
-
 #ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
@@ -73,8 +72,8 @@ ACPI_MODULE_NAME("nsxfeval")
 acpi_status
 acpi_evaluate_object_typed(acpi_handle handle,
                            acpi_string pathname,
-                           struct acpi_object_list * external_params,
-                           struct acpi_buffer * return_buffer,
+                           struct acpi_object_list *external_params,
+                           struct acpi_buffer *return_buffer,
                            acpi_object_type return_type)
 {
         acpi_status status;
@@ -143,7 +142,6 @@ acpi_evaluate_object_typed(acpi_handle handle,
 
 ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed)
 #endif                          /*  ACPI_FUTURE_USAGE  */
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_evaluate_object
@@ -170,7 +168,6 @@ acpi_evaluate_object(acpi_handle handle,
                      struct acpi_buffer *return_buffer)
 {
         acpi_status status;
-        acpi_status status2;
         struct acpi_evaluate_info *info;
         acpi_size buffer_space_needed;
         u32 i;
@@ -329,14 +326,12 @@ acpi_evaluate_object(acpi_handle handle,
                  * Delete the internal return object. NOTE: Interpreter must be
                  * locked to avoid race condition.
                  */
-                status2 = acpi_ex_enter_interpreter();
-                if (ACPI_SUCCESS(status2)) {
+                acpi_ex_enter_interpreter();
 
-                        /* Remove one reference on the return object (should delete it) */
+                /* Remove one reference on the return object (should delete it) */
 
-                        acpi_ut_remove_reference(info->return_object);
-                        acpi_ex_exit_interpreter();
-                }
+                acpi_ut_remove_reference(info->return_object);
+                acpi_ex_exit_interpreter();
         }
 
       cleanup:
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index c2bed56915e1..b998340e23d4 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -71,6 +71,7 @@ static unsigned int acpi_irq_irq;
 static acpi_osd_handler acpi_irq_handler;
 static void *acpi_irq_context;
 static struct workqueue_struct *kacpid_wq;
+static struct workqueue_struct *kacpi_notify_wq;
 
 static void __init acpi_request_region (struct acpi_generic_address *addr,
         unsigned int length, char *desc)
@@ -137,8 +138,9 @@ acpi_status acpi_os_initialize1(void)
                 return AE_NULL_ENTRY;
         }
         kacpid_wq = create_singlethread_workqueue("kacpid");
+        kacpi_notify_wq = create_singlethread_workqueue("kacpi_notify");
         BUG_ON(!kacpid_wq);
-
+        BUG_ON(!kacpi_notify_wq);
         return AE_OK;
 }
 
@@ -150,6 +152,7 @@ acpi_status acpi_os_terminate(void)
         }
 
         destroy_workqueue(kacpid_wq);
+        destroy_workqueue(kacpi_notify_wq);
 
         return AE_OK;
 }
@@ -603,6 +606,23 @@ void acpi_os_derive_pci_id(acpi_handle rhandle,	/* upper bound  */
 static void acpi_os_execute_deferred(struct work_struct *work)
 {
         struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work);
+        if (!dpc) {
+                printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
+                return;
+        }
+
+        dpc->function(dpc->context);
+        kfree(dpc);
+
+        /* Yield cpu to notify thread */
+        cond_resched();
+
+        return;
+}
+
+static void acpi_os_execute_notify(struct work_struct *work)
+{
+        struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work);
 
         if (!dpc) {
                 printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
@@ -637,14 +657,12 @@ acpi_status acpi_os_execute(acpi_execute_type type,
         acpi_status status = AE_OK;
         struct acpi_os_dpc *dpc;
 
-        ACPI_FUNCTION_TRACE("os_queue_for_execution");
-
         ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
                           "Scheduling function [%p(%p)] for deferred execution.\n",
                           function, context));
 
         if (!function)
-                return_ACPI_STATUS(AE_BAD_PARAMETER);
+                return AE_BAD_PARAMETER;
 
         /*
          * Allocate/initialize DPC structure.  Note that this memory will be
@@ -662,14 +680,21 @@ acpi_status acpi_os_execute(acpi_execute_type type,
         dpc->function = function;
         dpc->context = context;
 
-        INIT_WORK(&dpc->work, acpi_os_execute_deferred);
-        if (!queue_work(kacpid_wq, &dpc->work)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+        if (type == OSL_NOTIFY_HANDLER) {
+                INIT_WORK(&dpc->work, acpi_os_execute_notify);
+                if (!queue_work(kacpi_notify_wq, &dpc->work)) {
+                        status = AE_ERROR;
+                        kfree(dpc);
+                }
+        } else {
+                INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+                if (!queue_work(kacpid_wq, &dpc->work)) {
+                        ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
                                   "Call to queue_work() failed.\n"));
-                kfree(dpc);
-                status = AE_ERROR;
+                        status = AE_ERROR;
+                        kfree(dpc);
+                }
         }
-
         return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/parser/psopcode.c b/drivers/acpi/parser/psopcode.c
index 16d8b6cc3c22..9296e86761d7 100644
--- a/drivers/acpi/parser/psopcode.c
+++ b/drivers/acpi/parser/psopcode.c
@@ -185,459 +185,453 @@ const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES] = {
 /* Index           Name                 Parser Args               Interpreter Args                ObjectType                    Class                      Type                  Flags */
 
 /* 00 */ ACPI_OP("Zero", ARGP_ZERO_OP, ARGI_ZERO_OP, ACPI_TYPE_INTEGER,
-                         AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
+                 AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
 /* 01 */ ACPI_OP("One", ARGP_ONE_OP, ARGI_ONE_OP, ACPI_TYPE_INTEGER,
-                         AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
+                 AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
 /* 02 */ ACPI_OP("Alias", ARGP_ALIAS_OP, ARGI_ALIAS_OP,
-                         ACPI_TYPE_LOCAL_ALIAS, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_SIMPLE,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED),
+                 ACPI_TYPE_LOCAL_ALIAS, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_SIMPLE,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED),
 /* 03 */ ACPI_OP("Name", ARGP_NAME_OP, ARGI_NAME_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED),
+                 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_COMPLEX,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED),
 /* 04 */ ACPI_OP("ByteConst", ARGP_BYTE_OP, ARGI_BYTE_OP,
-                         ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LITERAL, AML_CONSTANT),
+                 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LITERAL, AML_CONSTANT),
 /* 05 */ ACPI_OP("WordConst", ARGP_WORD_OP, ARGI_WORD_OP,
-                         ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LITERAL, AML_CONSTANT),
+                 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LITERAL, AML_CONSTANT),
 /* 06 */ ACPI_OP("DwordConst", ARGP_DWORD_OP, ARGI_DWORD_OP,
-                         ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LITERAL, AML_CONSTANT),
+                 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LITERAL, AML_CONSTANT),
 /* 07 */ ACPI_OP("String", ARGP_STRING_OP, ARGI_STRING_OP,
-                         ACPI_TYPE_STRING, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LITERAL, AML_CONSTANT),
+                 ACPI_TYPE_STRING, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LITERAL, AML_CONSTANT),
 /* 08 */ ACPI_OP("Scope", ARGP_SCOPE_OP, ARGI_SCOPE_OP,
-                         ACPI_TYPE_LOCAL_SCOPE, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_NO_OBJ,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED),
+                 ACPI_TYPE_LOCAL_SCOPE, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_NO_OBJ,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED),
 /* 09 */ ACPI_OP("Buffer", ARGP_BUFFER_OP, ARGI_BUFFER_OP,
-                         ACPI_TYPE_BUFFER, AML_CLASS_CREATE,
-                         AML_TYPE_CREATE_OBJECT,
-                         AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
+                 ACPI_TYPE_BUFFER, AML_CLASS_CREATE,
+                 AML_TYPE_CREATE_OBJECT,
+                 AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
 /* 0A */ ACPI_OP("Package", ARGP_PACKAGE_OP, ARGI_PACKAGE_OP,
-                         ACPI_TYPE_PACKAGE, AML_CLASS_CREATE,
-                         AML_TYPE_CREATE_OBJECT,
-                         AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
+                 ACPI_TYPE_PACKAGE, AML_CLASS_CREATE,
+                 AML_TYPE_CREATE_OBJECT,
+                 AML_HAS_ARGS | AML_DEFER | AML_CONSTANT),
 /* 0B */ ACPI_OP("Method", ARGP_METHOD_OP, ARGI_METHOD_OP,
-                         ACPI_TYPE_METHOD, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_COMPLEX,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED | AML_DEFER),
+                 ACPI_TYPE_METHOD, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_COMPLEX,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED | AML_DEFER),
 /* 0C */ ACPI_OP("Local0", ARGP_LOCAL0, ARGI_LOCAL0,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LOCAL_VARIABLE, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 0D */ ACPI_OP("Local1", ARGP_LOCAL1, ARGI_LOCAL1,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LOCAL_VARIABLE, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 0E */ ACPI_OP("Local2", ARGP_LOCAL2, ARGI_LOCAL2,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LOCAL_VARIABLE, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 0F */ ACPI_OP("Local3", ARGP_LOCAL3, ARGI_LOCAL3,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LOCAL_VARIABLE, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 10 */ ACPI_OP("Local4", ARGP_LOCAL4, ARGI_LOCAL4,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LOCAL_VARIABLE, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 11 */ ACPI_OP("Local5", ARGP_LOCAL5, ARGI_LOCAL5,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LOCAL_VARIABLE, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 12 */ ACPI_OP("Local6", ARGP_LOCAL6, ARGI_LOCAL6,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LOCAL_VARIABLE, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 13 */ ACPI_OP("Local7", ARGP_LOCAL7, ARGI_LOCAL7,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LOCAL_VARIABLE, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LOCAL_VARIABLE, 0),
 /* 14 */ ACPI_OP("Arg0", ARGP_ARG0, ARGI_ARG0,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_METHOD_ARGUMENT, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 15 */ ACPI_OP("Arg1", ARGP_ARG1, ARGI_ARG1,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_METHOD_ARGUMENT, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 16 */ ACPI_OP("Arg2", ARGP_ARG2, ARGI_ARG2,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_METHOD_ARGUMENT, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 17 */ ACPI_OP("Arg3", ARGP_ARG3, ARGI_ARG3,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_METHOD_ARGUMENT, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 18 */ ACPI_OP("Arg4", ARGP_ARG4, ARGI_ARG4,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_METHOD_ARGUMENT, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 19 */ ACPI_OP("Arg5", ARGP_ARG5, ARGI_ARG5,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_METHOD_ARGUMENT, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 1A */ ACPI_OP("Arg6", ARGP_ARG6, ARGI_ARG6,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_METHOD_ARGUMENT, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_METHOD_ARGUMENT, 0),
 /* 1B */ ACPI_OP("Store", ARGP_STORE_OP, ARGI_STORE_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R),
 /* 1C */ ACPI_OP("RefOf", ARGP_REF_OF_OP, ARGI_REF_OF_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
-                         AML_FLAGS_EXEC_1A_0T_1R),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
+                 AML_FLAGS_EXEC_1A_0T_1R),
 /* 1D */ ACPI_OP("Add", ARGP_ADD_OP, ARGI_ADD_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 1E */ ACPI_OP("Concatenate", ARGP_CONCAT_OP, ARGI_CONCAT_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
 /* 1F */ ACPI_OP("Subtract", ARGP_SUBTRACT_OP, ARGI_SUBTRACT_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 20 */ ACPI_OP("Increment", ARGP_INCREMENT_OP, ARGI_INCREMENT_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_0T_1R,
-                         AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_0T_1R,
+                 AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
 /* 21 */ ACPI_OP("Decrement", ARGP_DECREMENT_OP, ARGI_DECREMENT_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_0T_1R,
-                         AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_0T_1R,
+                 AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
 /* 22 */ ACPI_OP("Multiply", ARGP_MULTIPLY_OP, ARGI_MULTIPLY_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 23 */ ACPI_OP("Divide", ARGP_DIVIDE_OP, ARGI_DIVIDE_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_2T_1R,
-                         AML_FLAGS_EXEC_2A_2T_1R | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_2T_1R,
+                 AML_FLAGS_EXEC_2A_2T_1R | AML_CONSTANT),
 /* 24 */ ACPI_OP("ShiftLeft", ARGP_SHIFT_LEFT_OP, ARGI_SHIFT_LEFT_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 25 */ ACPI_OP("ShiftRight", ARGP_SHIFT_RIGHT_OP, ARGI_SHIFT_RIGHT_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 26 */ ACPI_OP("And", ARGP_BIT_AND_OP, ARGI_BIT_AND_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 27 */ ACPI_OP("NAnd", ARGP_BIT_NAND_OP, ARGI_BIT_NAND_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 28 */ ACPI_OP("Or", ARGP_BIT_OR_OP, ARGI_BIT_OR_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 29 */ ACPI_OP("NOr", ARGP_BIT_NOR_OP, ARGI_BIT_NOR_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 2A */ ACPI_OP("XOr", ARGP_BIT_XOR_OP, ARGI_BIT_XOR_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_MATH | AML_CONSTANT),
 /* 2B */ ACPI_OP("Not", ARGP_BIT_NOT_OP, ARGI_BIT_NOT_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 2C */ ACPI_OP("FindSetLeftBit", ARGP_FIND_SET_LEFT_BIT_OP,
-                         ARGI_FIND_SET_LEFT_BIT_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+                 ARGI_FIND_SET_LEFT_BIT_OP, ACPI_TYPE_ANY,
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 2D */ ACPI_OP("FindSetRightBit", ARGP_FIND_SET_RIGHT_BIT_OP,
-                         ARGI_FIND_SET_RIGHT_BIT_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+                 ARGI_FIND_SET_RIGHT_BIT_OP, ACPI_TYPE_ANY,
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 2E */ ACPI_OP("DerefOf", ARGP_DEREF_OF_OP, ARGI_DEREF_OF_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_0T_1R, AML_FLAGS_EXEC_1A_0T_1R),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_0T_1R, AML_FLAGS_EXEC_1A_0T_1R),
 /* 2F */ ACPI_OP("Notify", ARGP_NOTIFY_OP, ARGI_NOTIFY_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_0T_0R, AML_FLAGS_EXEC_2A_0T_0R),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_0T_0R, AML_FLAGS_EXEC_2A_0T_0R),
 /* 30 */ ACPI_OP("SizeOf", ARGP_SIZE_OF_OP, ARGI_SIZE_OF_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_0T_1R,
-                         AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_0T_1R,
+                 AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
 /* 31 */ ACPI_OP("Index", ARGP_INDEX_OP, ARGI_INDEX_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R),
 /* 32 */ ACPI_OP("Match", ARGP_MATCH_OP, ARGI_MATCH_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_6A_0T_1R,
-                         AML_FLAGS_EXEC_6A_0T_1R | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_6A_0T_1R,
+                 AML_FLAGS_EXEC_6A_0T_1R | AML_CONSTANT),
 /* 33 */ ACPI_OP("CreateDWordField", ARGP_CREATE_DWORD_FIELD_OP,
-                         ARGI_CREATE_DWORD_FIELD_OP,
-                         ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-                         AML_TYPE_CREATE_FIELD,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-                         AML_DEFER | AML_CREATE),
+                 ARGI_CREATE_DWORD_FIELD_OP,
+                 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+                 AML_TYPE_CREATE_FIELD,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+                 AML_DEFER | AML_CREATE),
 /* 34 */ ACPI_OP("CreateWordField", ARGP_CREATE_WORD_FIELD_OP,
-                         ARGI_CREATE_WORD_FIELD_OP,
-                         ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-                         AML_TYPE_CREATE_FIELD,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-                         AML_DEFER | AML_CREATE),
+                 ARGI_CREATE_WORD_FIELD_OP,
+                 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+                 AML_TYPE_CREATE_FIELD,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+                 AML_DEFER | AML_CREATE),
 /* 35 */ ACPI_OP("CreateByteField", ARGP_CREATE_BYTE_FIELD_OP,
-                         ARGI_CREATE_BYTE_FIELD_OP,
-                         ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-                         AML_TYPE_CREATE_FIELD,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-                         AML_DEFER | AML_CREATE),
+                 ARGI_CREATE_BYTE_FIELD_OP,
+                 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+                 AML_TYPE_CREATE_FIELD,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+                 AML_DEFER | AML_CREATE),
 /* 36 */ ACPI_OP("CreateBitField", ARGP_CREATE_BIT_FIELD_OP,
-                         ARGI_CREATE_BIT_FIELD_OP,
-                         ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-                         AML_TYPE_CREATE_FIELD,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-                         AML_DEFER | AML_CREATE),
+                 ARGI_CREATE_BIT_FIELD_OP,
+                 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+                 AML_TYPE_CREATE_FIELD,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+                 AML_DEFER | AML_CREATE),
 /* 37 */ ACPI_OP("ObjectType", ARGP_TYPE_OP, ARGI_TYPE_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_0T_1R,
-                         AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_0T_1R,
+                 AML_FLAGS_EXEC_1A_0T_1R | AML_NO_OPERAND_RESOLVE),
 /* 38 */ ACPI_OP("LAnd", ARGP_LAND_OP, ARGI_LAND_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
-                         AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC |
-                         AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+                 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT),
 /* 39 */ ACPI_OP("LOr", ARGP_LOR_OP, ARGI_LOR_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
-                         AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC |
-                         AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+                 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL_NUMERIC | AML_CONSTANT),
 /* 3A */ ACPI_OP("LNot", ARGP_LNOT_OP, ARGI_LNOT_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
-                         AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_1R,
+                 AML_FLAGS_EXEC_1A_0T_1R | AML_CONSTANT),
 /* 3B */ ACPI_OP("LEqual", ARGP_LEQUAL_OP, ARGI_LEQUAL_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_0T_1R,
-                         AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_0T_1R,
+                 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
 /* 3C */ ACPI_OP("LGreater", ARGP_LGREATER_OP, ARGI_LGREATER_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_0T_1R,
-                         AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_0T_1R,
+                 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
 /* 3D */ ACPI_OP("LLess", ARGP_LLESS_OP, ARGI_LLESS_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
-                         AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+                 AML_FLAGS_EXEC_2A_0T_1R | AML_LOGICAL | AML_CONSTANT),
 /* 3E */ ACPI_OP("If", ARGP_IF_OP, ARGI_IF_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
+                 AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
 /* 3F */ ACPI_OP("Else", ARGP_ELSE_OP, ARGI_ELSE_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
+                 AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
 /* 40 */ ACPI_OP("While", ARGP_WHILE_OP, ARGI_WHILE_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
+                 AML_CLASS_CONTROL, AML_TYPE_CONTROL, AML_HAS_ARGS),
 /* 41 */ ACPI_OP("Noop", ARGP_NOOP_OP, ARGI_NOOP_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+                 AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
 /* 42 */ ACPI_OP("Return", ARGP_RETURN_OP, ARGI_RETURN_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_CONTROL,
-                         AML_TYPE_CONTROL, AML_HAS_ARGS),
+                 ACPI_TYPE_ANY, AML_CLASS_CONTROL,
+                 AML_TYPE_CONTROL, AML_HAS_ARGS),
 /* 43 */ ACPI_OP("Break", ARGP_BREAK_OP, ARGI_BREAK_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+                 AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
 /* 44 */ ACPI_OP("BreakPoint", ARGP_BREAK_POINT_OP, ARGI_BREAK_POINT_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+                 ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
 /* 45 */ ACPI_OP("Ones", ARGP_ONES_OP, ARGI_ONES_OP, ACPI_TYPE_INTEGER,
-                         AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
+                 AML_CLASS_ARGUMENT, AML_TYPE_CONSTANT, AML_CONSTANT),
 
 /* Prefixed opcodes (Two-byte opcodes with a prefix op) */
 
 /* 46 */ ACPI_OP("Mutex", ARGP_MUTEX_OP, ARGI_MUTEX_OP, ACPI_TYPE_MUTEX,
-                         AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED),
+                 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED),
 /* 47 */ ACPI_OP("Event", ARGP_EVENT_OP, ARGI_EVENT_OP, ACPI_TYPE_EVENT,
-                         AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
-                         AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+                 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
+                 AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
 /* 48 */ ACPI_OP("CondRefOf", ARGP_COND_REF_OF_OP, ARGI_COND_REF_OF_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
 /* 49 */ ACPI_OP("CreateField", ARGP_CREATE_FIELD_OP,
-                         ARGI_CREATE_FIELD_OP, ACPI_TYPE_BUFFER_FIELD,
-                         AML_CLASS_CREATE, AML_TYPE_CREATE_FIELD,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-                         AML_DEFER | AML_FIELD | AML_CREATE),
+                 ARGI_CREATE_FIELD_OP, ACPI_TYPE_BUFFER_FIELD,
+                 AML_CLASS_CREATE, AML_TYPE_CREATE_FIELD,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+                 AML_DEFER | AML_FIELD | AML_CREATE),
 /* 4A */ ACPI_OP("Load", ARGP_LOAD_OP, ARGI_LOAD_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_0R,
-                         AML_FLAGS_EXEC_1A_1T_0R),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_0R,
+                 AML_FLAGS_EXEC_1A_1T_0R),
 /* 4B */ ACPI_OP("Stall", ARGP_STALL_OP, ARGI_STALL_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
-                         AML_FLAGS_EXEC_1A_0T_0R),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
+                 AML_FLAGS_EXEC_1A_0T_0R),
 /* 4C */ ACPI_OP("Sleep", ARGP_SLEEP_OP, ARGI_SLEEP_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
-                         AML_FLAGS_EXEC_1A_0T_0R),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
+                 AML_FLAGS_EXEC_1A_0T_0R),
 /* 4D */ ACPI_OP("Acquire", ARGP_ACQUIRE_OP, ARGI_ACQUIRE_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_0T_1R, AML_FLAGS_EXEC_2A_0T_1R),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_0T_1R, AML_FLAGS_EXEC_2A_0T_1R),
 /* 4E */ ACPI_OP("Signal", ARGP_SIGNAL_OP, ARGI_SIGNAL_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
 /* 4F */ ACPI_OP("Wait", ARGP_WAIT_OP, ARGI_WAIT_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
-                         AML_FLAGS_EXEC_2A_0T_1R),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_0T_1R,
+                 AML_FLAGS_EXEC_2A_0T_1R),
 /* 50 */ ACPI_OP("Reset", ARGP_RESET_OP, ARGI_RESET_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
-                         AML_FLAGS_EXEC_1A_0T_0R),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_0T_0R,
+                 AML_FLAGS_EXEC_1A_0T_0R),
 /* 51 */ ACPI_OP("Release", ARGP_RELEASE_OP, ARGI_RELEASE_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
 /* 52 */ ACPI_OP("FromBCD", ARGP_FROM_BCD_OP, ARGI_FROM_BCD_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 53 */ ACPI_OP("ToBCD", ARGP_TO_BCD_OP, ARGI_TO_BCD_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 54 */ ACPI_OP("Unload", ARGP_UNLOAD_OP, ARGI_UNLOAD_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_0T_0R, AML_FLAGS_EXEC_1A_0T_0R),
 /* 55 */ ACPI_OP("Revision", ARGP_REVISION_OP, ARGI_REVISION_OP,
-                         ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-                         AML_TYPE_CONSTANT, 0),
+                 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+                 AML_TYPE_CONSTANT, 0),
 /* 56 */ ACPI_OP("Debug", ARGP_DEBUG_OP, ARGI_DEBUG_OP,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_CONSTANT, 0),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_CONSTANT, 0),
 /* 57 */ ACPI_OP("Fatal", ARGP_FATAL_OP, ARGI_FATAL_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_0T_0R,
-                         AML_FLAGS_EXEC_3A_0T_0R),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_0T_0R,
+                 AML_FLAGS_EXEC_3A_0T_0R),
 /* 58 */ ACPI_OP("OperationRegion", ARGP_REGION_OP, ARGI_REGION_OP,
-                         ACPI_TYPE_REGION, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_COMPLEX,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED | AML_DEFER),
+                 ACPI_TYPE_REGION, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_COMPLEX,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED | AML_DEFER),
 /* 59 */ ACPI_OP("Field", ARGP_FIELD_OP, ARGI_FIELD_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_FIELD,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_FIELD),
+                 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_FIELD,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
 /* 5A */ ACPI_OP("Device", ARGP_DEVICE_OP, ARGI_DEVICE_OP,
-                         ACPI_TYPE_DEVICE, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_NO_OBJ,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED),
+                 ACPI_TYPE_DEVICE, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_NO_OBJ,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED),
 /* 5B */ ACPI_OP("Processor", ARGP_PROCESSOR_OP, ARGI_PROCESSOR_OP,
-                         ACPI_TYPE_PROCESSOR, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_SIMPLE,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED),
+                 ACPI_TYPE_PROCESSOR, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_SIMPLE,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED),
 /* 5C */ ACPI_OP("PowerResource", ARGP_POWER_RES_OP, ARGI_POWER_RES_OP,
-                         ACPI_TYPE_POWER, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_SIMPLE,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED),
+                 ACPI_TYPE_POWER, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_SIMPLE,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED),
 /* 5D */ ACPI_OP("ThermalZone", ARGP_THERMAL_ZONE_OP,
-                         ARGI_THERMAL_ZONE_OP, ACPI_TYPE_THERMAL,
-                         AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_NO_OBJ,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED),
+                 ARGI_THERMAL_ZONE_OP, ACPI_TYPE_THERMAL,
+                 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_NO_OBJ,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED),
 /* 5E */ ACPI_OP("IndexField", ARGP_INDEX_FIELD_OP, ARGI_INDEX_FIELD_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_FIELD,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_FIELD),
+                 ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_FIELD,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
 /* 5F */ ACPI_OP("BankField", ARGP_BANK_FIELD_OP, ARGI_BANK_FIELD_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_FIELD,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_FIELD),
+                 ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_FIELD,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_FIELD),
 
 /* Internal opcodes that map to invalid AML opcodes */
 
 /* 60 */ ACPI_OP("LNotEqual", ARGP_LNOTEQUAL_OP, ARGI_LNOTEQUAL_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
-                         AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
+                 AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
 /* 61 */ ACPI_OP("LLessEqual", ARGP_LLESSEQUAL_OP, ARGI_LLESSEQUAL_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
-                         AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
+                 AML_TYPE_BOGUS, AML_HAS_ARGS | AML_CONSTANT),
 /* 62 */ ACPI_OP("LGreaterEqual", ARGP_LGREATEREQUAL_OP,
-                         ARGI_LGREATEREQUAL_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_INTERNAL, AML_TYPE_BOGUS,
-                         AML_HAS_ARGS | AML_CONSTANT),
+                 ARGI_LGREATEREQUAL_OP, ACPI_TYPE_ANY,
+                 AML_CLASS_INTERNAL, AML_TYPE_BOGUS,
+                 AML_HAS_ARGS | AML_CONSTANT),
 /* 63 */ ACPI_OP("-NamePath-", ARGP_NAMEPATH_OP, ARGI_NAMEPATH_OP,
-                         ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LITERAL, AML_NSOBJECT | AML_NSNODE),
+                 ACPI_TYPE_LOCAL_REFERENCE, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LITERAL, AML_NSOBJECT | AML_NSNODE),
 /* 64 */ ACPI_OP("-MethodCall-", ARGP_METHODCALL_OP, ARGI_METHODCALL_OP,
-                         ACPI_TYPE_METHOD, AML_CLASS_METHOD_CALL,
-                         AML_TYPE_METHOD_CALL,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE),
+                 ACPI_TYPE_METHOD, AML_CLASS_METHOD_CALL,
+                 AML_TYPE_METHOD_CALL,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE),
 /* 65 */ ACPI_OP("-ByteList-", ARGP_BYTELIST_OP, ARGI_BYTELIST_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LITERAL, 0),
+                 ACPI_TYPE_ANY, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LITERAL, 0),
 /* 66 */ ACPI_OP("-ReservedField-", ARGP_RESERVEDFIELD_OP,
-                         ARGI_RESERVEDFIELD_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
+                 ARGI_RESERVEDFIELD_OP, ACPI_TYPE_ANY,
+                 AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
 /* 67 */ ACPI_OP("-NamedField-", ARGP_NAMEDFIELD_OP, ARGI_NAMEDFIELD_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
-                         AML_TYPE_BOGUS,
-                         AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
+                 ACPI_TYPE_ANY, AML_CLASS_INTERNAL,
+                 AML_TYPE_BOGUS,
+                 AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE | AML_NAMED),
 /* 68 */ ACPI_OP("-AccessField-", ARGP_ACCESSFIELD_OP,
-                         ARGI_ACCESSFIELD_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
+                 ARGI_ACCESSFIELD_OP, ACPI_TYPE_ANY,
+                 AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
 /* 69 */ ACPI_OP("-StaticString", ARGP_STATICSTRING_OP,
-                         ARGI_STATICSTRING_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
+                 ARGI_STATICSTRING_OP, ACPI_TYPE_ANY,
+                 AML_CLASS_INTERNAL, AML_TYPE_BOGUS, 0),
 /* 6A */ ACPI_OP("-Return Value-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
-                         AML_CLASS_RETURN_VALUE, AML_TYPE_RETURN,
-                         AML_HAS_ARGS | AML_HAS_RETVAL),
+                 AML_CLASS_RETURN_VALUE, AML_TYPE_RETURN,
+                 AML_HAS_ARGS | AML_HAS_RETVAL),
 /* 6B */ ACPI_OP("-UNKNOWN_OP-", ARG_NONE, ARG_NONE, ACPI_TYPE_INVALID,
-                         AML_CLASS_UNKNOWN, AML_TYPE_BOGUS, AML_HAS_ARGS),
+                 AML_CLASS_UNKNOWN, AML_TYPE_BOGUS, AML_HAS_ARGS),
 /* 6C */ ACPI_OP("-ASCII_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
-                         AML_CLASS_ASCII, AML_TYPE_BOGUS, AML_HAS_ARGS),
+                 AML_CLASS_ASCII, AML_TYPE_BOGUS, AML_HAS_ARGS),
 /* 6D */ ACPI_OP("-PREFIX_ONLY-", ARG_NONE, ARG_NONE, ACPI_TYPE_ANY,
-                         AML_CLASS_PREFIX, AML_TYPE_BOGUS, AML_HAS_ARGS),
+                 AML_CLASS_PREFIX, AML_TYPE_BOGUS, AML_HAS_ARGS),
 
 /* ACPI 2.0 opcodes */
 
 /* 6E */ ACPI_OP("QwordConst", ARGP_QWORD_OP, ARGI_QWORD_OP,
-                         ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
-                         AML_TYPE_LITERAL, AML_CONSTANT),
+                 ACPI_TYPE_INTEGER, AML_CLASS_ARGUMENT,
+                 AML_TYPE_LITERAL, AML_CONSTANT),
         /* 6F */ ACPI_OP("Package", /* Var */ ARGP_VAR_PACKAGE_OP,
                          ARGI_VAR_PACKAGE_OP, ACPI_TYPE_PACKAGE,
                          AML_CLASS_CREATE, AML_TYPE_CREATE_OBJECT,
                          AML_HAS_ARGS | AML_DEFER),
 /* 70 */ ACPI_OP("ConcatenateResTemplate", ARGP_CONCAT_RES_OP,
-                         ARGI_CONCAT_RES_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+                 ARGI_CONCAT_RES_OP, ACPI_TYPE_ANY,
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
 /* 71 */ ACPI_OP("Mod", ARGP_MOD_OP, ARGI_MOD_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
 /* 72 */ ACPI_OP("CreateQWordField", ARGP_CREATE_QWORD_FIELD_OP,
-                         ARGI_CREATE_QWORD_FIELD_OP,
-                         ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
-                         AML_TYPE_CREATE_FIELD,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
-                         AML_DEFER | AML_CREATE),
+                 ARGI_CREATE_QWORD_FIELD_OP,
+                 ACPI_TYPE_BUFFER_FIELD, AML_CLASS_CREATE,
+                 AML_TYPE_CREATE_FIELD,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSNODE |
+                 AML_DEFER | AML_CREATE),
 /* 73 */ ACPI_OP("ToBuffer", ARGP_TO_BUFFER_OP, ARGI_TO_BUFFER_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 74 */ ACPI_OP("ToDecimalString", ARGP_TO_DEC_STR_OP,
-                         ARGI_TO_DEC_STR_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+                 ARGI_TO_DEC_STR_OP, ACPI_TYPE_ANY,
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 75 */ ACPI_OP("ToHexString", ARGP_TO_HEX_STR_OP, ARGI_TO_HEX_STR_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 76 */ ACPI_OP("ToInteger", ARGP_TO_INTEGER_OP, ARGI_TO_INTEGER_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_1T_1R,
-                         AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_1T_1R,
+                 AML_FLAGS_EXEC_1A_1T_1R | AML_CONSTANT),
 /* 77 */ ACPI_OP("ToString", ARGP_TO_STRING_OP, ARGI_TO_STRING_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_2A_1T_1R,
-                         AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_2A_1T_1R,
+                 AML_FLAGS_EXEC_2A_1T_1R | AML_CONSTANT),
 /* 78 */ ACPI_OP("CopyObject", ARGP_COPY_OP, ARGI_COPY_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_1A_1T_1R, AML_FLAGS_EXEC_1A_1T_1R),
 /* 79 */ ACPI_OP("Mid", ARGP_MID_OP, ARGI_MID_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_1T_1R,
-                         AML_FLAGS_EXEC_3A_1T_1R | AML_CONSTANT),
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_3A_1T_1R,
+                 AML_FLAGS_EXEC_3A_1T_1R | AML_CONSTANT),
 /* 7A */ ACPI_OP("Continue", ARGP_CONTINUE_OP, ARGI_CONTINUE_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
+                 ACPI_TYPE_ANY, AML_CLASS_CONTROL, AML_TYPE_CONTROL, 0),
 /* 7B */ ACPI_OP("LoadTable", ARGP_LOAD_TABLE_OP, ARGI_LOAD_TABLE_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
-                         AML_TYPE_EXEC_6A_0T_1R, AML_FLAGS_EXEC_6A_0T_1R),
+                 ACPI_TYPE_ANY, AML_CLASS_EXECUTE,
+                 AML_TYPE_EXEC_6A_0T_1R, AML_FLAGS_EXEC_6A_0T_1R),
 /* 7C */ ACPI_OP("DataTableRegion", ARGP_DATA_REGION_OP,
-                         ARGI_DATA_REGION_OP, ACPI_TYPE_REGION,
-                         AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE | AML_NAMED),
+                 ARGI_DATA_REGION_OP, ACPI_TYPE_REGION,
+                 AML_CLASS_NAMED_OBJECT, AML_TYPE_NAMED_SIMPLE,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
+                 AML_NSNODE | AML_NAMED),
 /* 7D */ ACPI_OP("[EvalSubTree]", ARGP_SCOPE_OP, ARGI_SCOPE_OP,
-                         ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
-                         AML_TYPE_NAMED_NO_OBJ,
-                         AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE |
-                         AML_NSNODE),
+                 ACPI_TYPE_ANY, AML_CLASS_NAMED_OBJECT,
+                 AML_TYPE_NAMED_NO_OBJ,
+                 AML_HAS_ARGS | AML_NSOBJECT | AML_NSOPCODE | AML_NSNODE),
 
 /* ACPI 3.0 opcodes */
 
 /* 7E */ ACPI_OP("Timer", ARGP_TIMER_OP, ARGI_TIMER_OP, ACPI_TYPE_ANY,
-                         AML_CLASS_EXECUTE, AML_TYPE_EXEC_0A_0T_1R,
-                         AML_FLAGS_EXEC_0A_0T_1R)
+                 AML_CLASS_EXECUTE, AML_TYPE_EXEC_0A_0T_1R,
+                 AML_FLAGS_EXEC_0A_0T_1R)
 
 /*! [End] no source code translation !*/
 };
diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c
index 8c6d3fdec38a..0dd2ce8a3475 100644
--- a/drivers/acpi/resources/rscalc.c
+++ b/drivers/acpi/resources/rscalc.c
@@ -567,7 +567,8 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
                                                      (*sub_object_list)->string.
                                                      length + 1);
                         } else {
-                                temp_size_needed += acpi_ns_get_pathname_length((*sub_object_list)->reference.node);
+                                temp_size_needed +=
+                                    acpi_ns_get_pathname_length((*sub_object_list)->reference.node);
                         }
                 } else {
                         /*
diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c
index cc48ab05676c..50da494c3ee2 100644
--- a/drivers/acpi/resources/rscreate.c
+++ b/drivers/acpi/resources/rscreate.c
@@ -267,16 +267,19 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
                  * If BIOS erroneously reversed the _PRT source_name and source_index,
                  * then reverse them back.
                  */
-                if (ACPI_GET_OBJECT_TYPE (sub_object_list[3]) != ACPI_TYPE_INTEGER) {
+                if (ACPI_GET_OBJECT_TYPE(sub_object_list[3]) !=
+                    ACPI_TYPE_INTEGER) {
                         if (acpi_gbl_enable_interpreter_slack) {
                                 source_name_index = 3;
                                 source_index_index = 2;
-                                printk(KERN_WARNING "ACPI: Handling Garbled _PRT entry\n");
+                                printk(KERN_WARNING
+                                       "ACPI: Handling Garbled _PRT entry\n");
                         } else {
                                 ACPI_ERROR((AE_INFO,
-                                        "(PRT[%X].source_index) Need Integer, found %s",
-                                        index,
-                                        acpi_ut_get_object_type_name(sub_object_list[3])));
+                                            "(PRT[%X].source_index) Need Integer, found %s",
+                                            index,
+                                            acpi_ut_get_object_type_name
+                                            (sub_object_list[3])));
                                 return_ACPI_STATUS(AE_BAD_DATA);
                         }
                 }
diff --git a/drivers/acpi/resources/rsdump.c b/drivers/acpi/resources/rsdump.c
index de20a5d6decf..46da116a4030 100644
--- a/drivers/acpi/resources/rsdump.c
+++ b/drivers/acpi/resources/rsdump.c
@@ -46,7 +46,6 @@
 
 #define _COMPONENT          ACPI_RESOURCES
 ACPI_MODULE_NAME("rsdump")
-
 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
 /* Local prototypes */
 static void acpi_rs_out_string(char *title, char *value);
@@ -489,10 +488,9 @@ acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
                         /*
                          * Optional resource_source for Address resources
                          */
-                        acpi_rs_dump_resource_source(ACPI_CAST_PTR
-                                                     (struct
-                                                      acpi_resource_source,
-                                                      target));
+                        acpi_rs_dump_resource_source(ACPI_CAST_PTR(struct
+                                                                   acpi_resource_source,
+                                                                   target));
                         break;
 
                 default:
diff --git a/drivers/acpi/resources/rsinfo.c b/drivers/acpi/resources/rsinfo.c
index 7e3c335ab320..2c2adb6292c1 100644
--- a/drivers/acpi/resources/rsinfo.c
+++ b/drivers/acpi/resources/rsinfo.c
@@ -142,7 +142,7 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = {
 };
 #endif
 
-#endif  /* ACPI_FUTURE_USAGE */
+#endif                          /* ACPI_FUTURE_USAGE */
 /*
  * Base sizes for external AML resource descriptors, indexed by internal type.
  * Includes size of the descriptor header (1 byte for small descriptors,
diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c
index a92755c8877d..ca21e4660c79 100644
--- a/drivers/acpi/resources/rslist.c
+++ b/drivers/acpi/resources/rslist.c
@@ -153,10 +153,9 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource,
 
                 /* Perform the conversion */
 
-                status = acpi_rs_convert_resource_to_aml(resource,
-                                                         ACPI_CAST_PTR(union
-                                                                       aml_resource,
-                                                                       aml),
+                status = acpi_rs_convert_resource_to_aml(resource, ACPI_CAST_PTR(union
+                                                                                 aml_resource,
+                                                                                 aml),
                                                          acpi_gbl_set_resource_dispatch
                                                          [resource->type]);
                 if (ACPI_FAILURE(status)) {
diff --git a/drivers/acpi/resources/rsmisc.c b/drivers/acpi/resources/rsmisc.c
index 3b63b561b94e..c7081afa893a 100644
--- a/drivers/acpi/resources/rsmisc.c
+++ b/drivers/acpi/resources/rsmisc.c
@@ -46,7 +46,6 @@
 
 #define _COMPONENT          ACPI_RESOURCES
 ACPI_MODULE_NAME("rsmisc")
-
 #define INIT_RESOURCE_TYPE(i)       i->resource_offset
 #define INIT_RESOURCE_LENGTH(i)     i->aml_offset
 #define INIT_TABLE_LENGTH(i)        i->value
@@ -429,8 +428,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
                          * Optional resource_source (Index and String)
                          */
                         aml_length =
-                            acpi_rs_set_resource_source(aml,
-                                                        (acpi_rs_length)
+                            acpi_rs_set_resource_source(aml, (acpi_rs_length)
                                                         aml_length, source);
                         acpi_rs_set_resource_length(aml_length, aml);
                         break;
diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c
index 2442a8f8df57..11c0bd7b9cfd 100644
--- a/drivers/acpi/resources/rsutils.c
+++ b/drivers/acpi/resources/rsutils.c
@@ -353,10 +353,8 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length,
                  *
                  * Zero the entire area of the buffer.
                  */
-                total_length =
-                    (u32)
-                    ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) +
-                    1;
+                total_length = (u32)
+                ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) + 1;
                 total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length);
 
                 ACPI_MEMSET(resource_source->string_ptr, 0, total_length);
diff --git a/drivers/acpi/resources/rsxface.c b/drivers/acpi/resources/rsxface.c
index 991f8901498c..f63813a358c5 100644
--- a/drivers/acpi/resources/rsxface.c
+++ b/drivers/acpi/resources/rsxface.c
@@ -217,7 +217,6 @@ acpi_get_current_resources(acpi_handle device_handle,
 }
 
 ACPI_EXPORT_SYMBOL(acpi_get_current_resources)
-
 #ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
@@ -261,7 +260,6 @@ acpi_get_possible_resources(acpi_handle device_handle,
 
 ACPI_EXPORT_SYMBOL(acpi_get_possible_resources)
 #endif                          /*  ACPI_FUTURE_USAGE  */
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_set_current_resources
@@ -496,7 +494,6 @@ ACPI_EXPORT_SYMBOL(acpi_rs_match_vendor_resource)
  *              each resource in the list.
  *
  ******************************************************************************/
-
 acpi_status
 acpi_walk_resources(acpi_handle device_handle,
                     char *name,
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index f8c63410bcbf..bc7e16ec8393 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -29,7 +29,6 @@ static u32 acpi_suspend_states[] = {
         [PM_SUSPEND_ON] = ACPI_STATE_S0,
         [PM_SUSPEND_STANDBY] = ACPI_STATE_S1,
         [PM_SUSPEND_MEM] = ACPI_STATE_S3,
-        [PM_SUSPEND_DISK] = ACPI_STATE_S4,
         [PM_SUSPEND_MAX] = ACPI_STATE_S5
 };
 
@@ -94,14 +93,6 @@ static int acpi_pm_enter(suspend_state_t pm_state)
                 do_suspend_lowlevel();
                 break;
 
-        case PM_SUSPEND_DISK:
-                if (acpi_pm_ops.pm_disk_mode == PM_DISK_PLATFORM)
-                        status = acpi_enter_sleep_state(acpi_state);
-                break;
-        case PM_SUSPEND_MAX:
-                acpi_power_off();
-                break;
-
         default:
                 return -EINVAL;
         }
@@ -157,12 +148,13 @@ int acpi_suspend(u32 acpi_state)
         suspend_state_t states[] = {
                 [1] = PM_SUSPEND_STANDBY,
                 [3] = PM_SUSPEND_MEM,
-                [4] = PM_SUSPEND_DISK,
                 [5] = PM_SUSPEND_MAX
         };
 
         if (acpi_state < 6 && states[acpi_state])
                 return pm_suspend(states[acpi_state]);
+        if (acpi_state == 4)
+                return hibernate();
         return -EINVAL;
 }
 
@@ -189,6 +181,49 @@ static struct pm_ops acpi_pm_ops = {
         .finish = acpi_pm_finish,
 };
 
+#ifdef CONFIG_SOFTWARE_SUSPEND
+static int acpi_hibernation_prepare(void)
+{
+        return acpi_sleep_prepare(ACPI_STATE_S4);
+}
+
+static int acpi_hibernation_enter(void)
+{
+        acpi_status status = AE_OK;
+        unsigned long flags = 0;
+
+        ACPI_FLUSH_CPU_CACHE();
+
+        local_irq_save(flags);
+        acpi_enable_wakeup_device(ACPI_STATE_S4);
+        /* This shouldn't return.  If it returns, we have a problem */
+        status = acpi_enter_sleep_state(ACPI_STATE_S4);
+        local_irq_restore(flags);
+
+        return ACPI_SUCCESS(status) ? 0 : -EFAULT;
+}
+
+static void acpi_hibernation_finish(void)
+{
+        acpi_leave_sleep_state(ACPI_STATE_S4);
+        acpi_disable_wakeup_device(ACPI_STATE_S4);
+
+        /* reset firmware waking vector */
+        acpi_set_firmware_waking_vector((acpi_physical_address) 0);
+
+        if (init_8259A_after_S1) {
+                printk("Broken toshiba laptop -> kicking interrupts\n");
+                init_8259A(0);
+        }
+}
+
+static struct hibernation_ops acpi_hibernation_ops = {
+        .prepare = acpi_hibernation_prepare,
+        .enter = acpi_hibernation_enter,
+        .finish = acpi_hibernation_finish,
+};
+#endif                          /* CONFIG_SOFTWARE_SUSPEND */
+
 /*
  * Toshiba fails to preserve interrupts over S1, reinitialization
  * of 8259 is needed after S1 resume.
@@ -227,14 +262,17 @@ int __init acpi_sleep_init(void)
                         sleep_states[i] = 1;
                         printk(" S%d", i);
                 }
-                if (i == ACPI_STATE_S4) {
-                        if (sleep_states[i])
-                                acpi_pm_ops.pm_disk_mode = PM_DISK_PLATFORM;
-                }
         }
         printk(")\n");
 
         pm_set_ops(&acpi_pm_ops);
+
+#ifdef CONFIG_SOFTWARE_SUSPEND
+        if (sleep_states[ACPI_STATE_S4])
+                hibernation_set_ops(&acpi_hibernation_ops);
+#else
+        sleep_states[ACPI_STATE_S4] = 0;
+#endif
+
         return 0;
 }
-
diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c
index 5a76e5be61d5..61f1822cc350 100644
--- a/drivers/acpi/sleep/proc.c
+++ b/drivers/acpi/sleep/proc.c
@@ -60,7 +60,7 @@ acpi_system_write_sleep(struct file *file,
         state = simple_strtoul(str, NULL, 0);
 #ifdef CONFIG_SOFTWARE_SUSPEND
         if (state == 4) {
-                error = pm_suspend(PM_SUSPEND_DISK);
+                error = hibernate();
                 goto Done;
         }
 #endif
@@ -349,8 +349,7 @@ acpi_system_write_alarm(struct file *file,
       end:
         return_VALUE(result ? result : count);
 }
-#endif  /* HAVE_ACPI_LEGACY_ALARM */
-
+#endif                          /* HAVE_ACPI_LEGACY_ALARM */
 
 extern struct list_head acpi_wakeup_device_list;
 extern spinlock_t acpi_device_lock;
@@ -380,8 +379,8 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
                            dev->wakeup.state.enabled ? "enabled" : "disabled");
                 if (ldev)
                         seq_printf(seq, "%s:%s",
-                                ldev->bus ? ldev->bus->name : "no-bus",
-                                ldev->bus_id);
+                                   ldev->bus ? ldev->bus->name : "no-bus",
+                                   ldev->bus_id);
                 seq_printf(seq, "\n");
                 put_device(ldev);
 
@@ -490,7 +489,7 @@ static u32 rtc_handler(void *context)
 
         return ACPI_INTERRUPT_HANDLED;
 }
-#endif  /* HAVE_ACPI_LEGACY_ALARM */
+#endif                          /* HAVE_ACPI_LEGACY_ALARM */
 
 static int __init acpi_sleep_proc_init(void)
 {
@@ -517,7 +516,7 @@ static int __init acpi_sleep_proc_init(void)
                 entry->proc_fops = &acpi_system_alarm_fops;
 
         acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL);
-#endif  /* HAVE_ACPI_LEGACY_ALARM */
+#endif                          /* HAVE_ACPI_LEGACY_ALARM */
 
         /* 'wakeup device' [R/W] */
         entry =
diff --git a/drivers/acpi/tables/tbfadt.c b/drivers/acpi/tables/tbfadt.c
index 1db833eb2417..1285e91474fb 100644
--- a/drivers/acpi/tables/tbfadt.c
+++ b/drivers/acpi/tables/tbfadt.c
@@ -334,7 +334,8 @@ static void acpi_tb_convert_fadt(void)
                                      (acpi_gbl_FADT.xpm1a_event_block.address +
                                       pm1_register_length));
         /* Don't forget to copy space_id of the GAS */
-        acpi_gbl_xpm1a_enable.space_id = acpi_gbl_FADT.xpm1a_event_block.space_id;
+        acpi_gbl_xpm1a_enable.space_id =
+            acpi_gbl_FADT.xpm1a_event_block.space_id;
 
         /* The PM1B register block is optional, ignore if not present */
 
@@ -344,7 +345,8 @@ static void acpi_tb_convert_fadt(void)
                                              (acpi_gbl_FADT.xpm1b_event_block.
                                               address + pm1_register_length));
                 /* Don't forget to copy space_id of the GAS */
-                acpi_gbl_xpm1b_enable.space_id = acpi_gbl_FADT.xpm1a_event_block.space_id;
+                acpi_gbl_xpm1b_enable.space_id =
+                    acpi_gbl_FADT.xpm1a_event_block.space_id;
 
         }
 
diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c
index 417ef5fa7666..5b302c4e293f 100644
--- a/drivers/acpi/tables/tbxface.c
+++ b/drivers/acpi/tables/tbxface.c
@@ -201,6 +201,7 @@ acpi_status acpi_reallocate_root_table(void)
 
         return_ACPI_STATUS(AE_OK);
 }
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_load_table
@@ -262,7 +263,7 @@ ACPI_EXPORT_SYMBOL(acpi_load_table)
 acpi_status
 acpi_get_table_header(char *signature,
                       acpi_native_uint instance,
-                      struct acpi_table_header *out_table_header)
+                      struct acpi_table_header * out_table_header)
 {
         acpi_native_uint i;
         acpi_native_uint j;
@@ -321,7 +322,6 @@ acpi_get_table_header(char *signature,
 
 ACPI_EXPORT_SYMBOL(acpi_get_table_header)
 
-
 /******************************************************************************
  *
  * FUNCTION:    acpi_unload_table_id
@@ -346,11 +346,11 @@ acpi_status acpi_unload_table_id(acpi_owner_id id)
                         continue;
                 }
                 /*
-                * Delete all namespace objects owned by this table. Note that these
-                * objects can appear anywhere in the namespace by virtue of the AML
-                * "Scope" operator. Thus, we need to track ownership by an ID, not
-                * simply a position within the hierarchy
-                */
+                 * Delete all namespace objects owned by this table. Note that these
+                 * objects can appear anywhere in the namespace by virtue of the AML
+                 * "Scope" operator. Thus, we need to track ownership by an ID, not
+                 * simply a position within the hierarchy
+                 */
                 acpi_tb_delete_namespace_by_owner(i);
                 status = acpi_tb_release_owner_id(i);
                 acpi_tb_set_table_loaded_flag(i, FALSE);
@@ -376,7 +376,7 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
  *****************************************************************************/
 acpi_status
 acpi_get_table(char *signature,
-               acpi_native_uint instance, struct acpi_table_header ** out_table)
+               acpi_native_uint instance, struct acpi_table_header **out_table)
 {
         acpi_native_uint i;
         acpi_native_uint j;
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 589b98b7b216..1ada017d01ef 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -59,8 +59,6 @@
 #define ACPI_THERMAL_NOTIFY_CRITICAL    0xF0
 #define ACPI_THERMAL_NOTIFY_HOT         0xF1
 #define ACPI_THERMAL_MODE_ACTIVE        0x00
-#define ACPI_THERMAL_MODE_PASSIVE       0x01
-#define ACPI_THERMAL_MODE_CRITICAL      0xff
 #define ACPI_THERMAL_PATH_POWEROFF      "/sbin/poweroff"
 
 #define ACPI_THERMAL_MAX_ACTIVE 10
@@ -86,9 +84,6 @@ static int acpi_thermal_resume(struct acpi_device *device);
 static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file);
 static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file);
 static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file);
-static ssize_t acpi_thermal_write_trip_points(struct file *,
-                                              const char __user *, size_t,
-                                              loff_t *);
 static int acpi_thermal_cooling_open_fs(struct inode *inode, struct file *file);
 static ssize_t acpi_thermal_write_cooling_mode(struct file *,
                                                const char __user *, size_t,
@@ -167,7 +162,6 @@ struct acpi_thermal {
         unsigned long temperature;
         unsigned long last_temperature;
         unsigned long polling_frequency;
-        u8 cooling_mode;
         volatile u8 zombie;
         struct acpi_thermal_flags flags;
         struct acpi_thermal_state state;
@@ -193,7 +187,6 @@ static const struct file_operations acpi_thermal_temp_fops = {
 static const struct file_operations acpi_thermal_trip_fops = {
         .open = acpi_thermal_trip_open_fs,
         .read = seq_read,
-        .write = acpi_thermal_write_trip_points,
         .llseek = seq_lseek,
         .release = single_release,
 };
@@ -297,11 +290,6 @@ static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
         if (ACPI_FAILURE(status))
                 return -ENODEV;
 
-        tz->cooling_mode = mode;
-
-        ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Cooling mode [%s]\n",
-                          mode ? "passive" : "active"));
-
         return 0;
 }
 
@@ -889,67 +877,6 @@ static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file)
         return single_open(file, acpi_thermal_trip_seq_show, PDE(inode)->data);
 }
 
-static ssize_t
-acpi_thermal_write_trip_points(struct file *file,
-                               const char __user * buffer,
-                               size_t count, loff_t * ppos)
-{
-        struct seq_file *m = file->private_data;
-        struct acpi_thermal *tz = m->private;
-
-        char *limit_string;
-        int num, critical, hot, passive;
-        int *active;
-        int i = 0;
-
-
-        limit_string = kzalloc(ACPI_THERMAL_MAX_LIMIT_STR_LEN, GFP_KERNEL);
-        if (!limit_string)
-                return -ENOMEM;
-
-        active = kmalloc(ACPI_THERMAL_MAX_ACTIVE * sizeof(int), GFP_KERNEL);
-        if (!active) {
-                kfree(limit_string);
-                return -ENOMEM;
-        }
-
-        if (!tz || (count > ACPI_THERMAL_MAX_LIMIT_STR_LEN - 1)) {
-                count = -EINVAL;
-                goto end;
-        }
-
-        if (copy_from_user(limit_string, buffer, count)) {
-                count = -EFAULT;
-                goto end;
-        }
-
-        limit_string[count] = '\0';
-
-        num = sscanf(limit_string, "%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d:%d",
-                     &critical, &hot, &passive,
-                     &active[0], &active[1], &active[2], &active[3], &active[4],
-                     &active[5], &active[6], &active[7], &active[8],
-                     &active[9]);
-        if (!(num >= 5 && num < (ACPI_THERMAL_MAX_ACTIVE + 3))) {
-                count = -EINVAL;
-                goto end;
-        }
-
-        tz->trips.critical.temperature = CELSIUS_TO_KELVIN(critical);
-        tz->trips.hot.temperature = CELSIUS_TO_KELVIN(hot);
-        tz->trips.passive.temperature = CELSIUS_TO_KELVIN(passive);
-        for (i = 0; i < num - 3; i++) {
-                if (!(tz->trips.active[i].flags.valid))
-                        break;
-                tz->trips.active[i].temperature = CELSIUS_TO_KELVIN(active[i]);
-        }
-
-      end:
-        kfree(active);
-        kfree(limit_string);
-        return count;
-}
-
 static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset)
 {
         struct acpi_thermal *tz = seq->private;
@@ -958,15 +885,10 @@ static int acpi_thermal_cooling_seq_show(struct seq_file *seq, void *offset)
         if (!tz)
                 goto end;
 
-        if (!tz->flags.cooling_mode) {
+        if (!tz->flags.cooling_mode)
                 seq_puts(seq, "<setting not supported>\n");
-        }
-
-        if (tz->cooling_mode == ACPI_THERMAL_MODE_CRITICAL)
-                seq_printf(seq, "cooling mode:  critical\n");
         else
-                seq_printf(seq, "cooling mode:  %s\n",
-                           tz->cooling_mode ? "passive" : "active");
+                seq_puts(seq, "0 - Active; 1 - Passive\n");
 
       end:
         return 0;
@@ -1223,28 +1145,6 @@ static int acpi_thermal_get_info(struct acpi_thermal *tz)
         result = acpi_thermal_set_cooling_mode(tz, ACPI_THERMAL_MODE_ACTIVE);
         if (!result)
                 tz->flags.cooling_mode = 1;
-        else {
-                /* Oh,we have not _SCP method.
-                   Generally show cooling_mode by _ACx, _PSV,spec 12.2 */
-                tz->flags.cooling_mode = 0;
-                if (tz->trips.active[0].flags.valid
-                    && tz->trips.passive.flags.valid) {
-                        if (tz->trips.passive.temperature >
-                            tz->trips.active[0].temperature)
-                                tz->cooling_mode = ACPI_THERMAL_MODE_ACTIVE;
-                        else
-                                tz->cooling_mode = ACPI_THERMAL_MODE_PASSIVE;
-                } else if (!tz->trips.active[0].flags.valid
-                           && tz->trips.passive.flags.valid) {
-                        tz->cooling_mode = ACPI_THERMAL_MODE_PASSIVE;
-                } else if (tz->trips.active[0].flags.valid
-                           && !tz->trips.passive.flags.valid) {
-                        tz->cooling_mode = ACPI_THERMAL_MODE_ACTIVE;
-                } else {
-                        /* _ACx and _PSV are optional, but _CRT is required */
-                        tz->cooling_mode = ACPI_THERMAL_MODE_CRITICAL;
-                }
-        }
 
         /* Get default polling frequency [_TZP] (optional) */
         if (tzp)
diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c
index 55a764807499..6e56d5f7c43a 100644
--- a/drivers/acpi/utilities/utalloc.c
+++ b/drivers/acpi/utilities/utalloc.c
@@ -107,7 +107,6 @@ acpi_status acpi_ut_create_caches(void)
         if (ACPI_FAILURE(status)) {
                 return (status);
         }
-
 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 
         /* Memory allocation lists */
diff --git a/drivers/acpi/utilities/utcache.c b/drivers/acpi/utilities/utcache.c
index 870f6edeb5f2..285a0f531760 100644
--- a/drivers/acpi/utilities/utcache.c
+++ b/drivers/acpi/utilities/utcache.c
@@ -45,7 +45,6 @@
 
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utcache")
-
 #ifdef ACPI_USE_LOCAL_CACHE
 /*******************************************************************************
  *
@@ -64,7 +63,7 @@ ACPI_MODULE_NAME("utcache")
 acpi_status
 acpi_os_create_cache(char *cache_name,
                      u16 object_size,
-                     u16 max_depth, struct acpi_memory_list **return_cache)
+                     u16 max_depth, struct acpi_memory_list ** return_cache)
 {
         struct acpi_memory_list *cache;
 
diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c
index 84d529db0a66..4c1e00874dff 100644
--- a/drivers/acpi/utilities/utcopy.c
+++ b/drivers/acpi/utilities/utcopy.c
@@ -814,7 +814,9 @@ acpi_ut_copy_ielement_to_ielement(u8 object_type,
                 /*
                  * Create the object array
                  */
-                target_object->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) source_object->package.count + 1) * sizeof(void *));
+                target_object->package.elements =
+                    ACPI_ALLOCATE_ZEROED(((acpi_size) source_object->package.
+                                          count + 1) * sizeof(void *));
                 if (!target_object->package.elements) {
                         status = AE_NO_MEMORY;
                         goto error_exit;
diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c
index 61ad4f2daee2..c7e128e5369b 100644
--- a/drivers/acpi/utilities/utdebug.c
+++ b/drivers/acpi/utilities/utdebug.c
@@ -45,7 +45,6 @@
 
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utdebug")
-
 #ifdef ACPI_DEBUG_OUTPUT
 static acpi_thread_id acpi_gbl_prev_thread_id;
 static char *acpi_gbl_fn_entry_str = "----Entry";
@@ -181,7 +180,8 @@ acpi_ut_debug_print(u32 requested_debug_level,
                 if (ACPI_LV_THREADS & acpi_dbg_level) {
                         acpi_os_printf
                             ("\n**** Context Switch from TID %lX to TID %lX ****\n\n",
-                             (unsigned long)acpi_gbl_prev_thread_id, (unsigned long)thread_id);
+                             (unsigned long)acpi_gbl_prev_thread_id,
+                             (unsigned long)thread_id);
                 }
 
                 acpi_gbl_prev_thread_id = thread_id;
diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c
index 673a0caa4073..f777cebdc46d 100644
--- a/drivers/acpi/utilities/utdelete.c
+++ b/drivers/acpi/utilities/utdelete.c
@@ -170,6 +170,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object)
                         acpi_os_delete_mutex(object->mutex.os_mutex);
                         acpi_gbl_global_lock_mutex = NULL;
                 } else {
+                        acpi_ex_unlink_mutex(object);
                         acpi_os_delete_mutex(object->mutex.os_mutex);
                 }
                 break;
diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c
index af33358a964b..1621655d6e2b 100644
--- a/drivers/acpi/utilities/utglobal.c
+++ b/drivers/acpi/utilities/utglobal.c
@@ -55,12 +55,10 @@ ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
  * Static global variable initialization.
  *
  ******************************************************************************/
-
 /*
  * We want the debug switches statically initialized so they
  * are already set when the debugger is entered.
  */
-
 /* Debug switch - level and trace mask */
 u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
 
@@ -735,5 +733,5 @@ void acpi_ut_init_globals(void)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
-ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
-ACPI_EXPORT_SYMBOL(acpi_gpe_count)
+    ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
+    ACPI_EXPORT_SYMBOL(acpi_gpe_count)
diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c
index 50133fffe420..2d19f71e9cfa 100644
--- a/drivers/acpi/utilities/utmisc.c
+++ b/drivers/acpi/utilities/utmisc.c
@@ -802,9 +802,8 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer)
 
                 valid_digits++;
 
-                if (sign_of0x
-                    && ((valid_digits > 16)
-                        || ((valid_digits > 8) && mode32))) {
+                if (sign_of0x && ((valid_digits > 16)
+                                  || ((valid_digits > 8) && mode32))) {
                         /*
                          * This is to_integer operation case.
                          * No any restrictions for string-to-integer conversion,
@@ -1049,6 +1048,7 @@ acpi_ut_exception(char *module_name,
         acpi_os_vprintf(format, args);
         acpi_os_printf(" [%X]\n", ACPI_CA_VERSION);
 }
+
 EXPORT_SYMBOL(acpi_ut_exception);
 
 void ACPI_INTERNAL_VAR_XFACE
diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c
index cbad2ef5987d..4820bc86d1f5 100644
--- a/drivers/acpi/utilities/utmutex.c
+++ b/drivers/acpi/utilities/utmutex.c
@@ -244,7 +244,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
 
         ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
                           "Thread %lX attempting to acquire Mutex [%s]\n",
-                          (unsigned long) this_thread_id,
+                          (unsigned long)this_thread_id,
                           acpi_ut_get_mutex_name(mutex_id)));
 
         status = acpi_os_acquire_mutex(acpi_gbl_mutex_info[mutex_id].mutex,
@@ -252,7 +252,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
         if (ACPI_SUCCESS(status)) {
                 ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
                                   "Thread %lX acquired Mutex [%s]\n",
-                                  (unsigned long) this_thread_id,
+                                  (unsigned long)this_thread_id,
                                   acpi_ut_get_mutex_name(mutex_id)));
 
                 acpi_gbl_mutex_info[mutex_id].use_count++;
@@ -260,7 +260,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
         } else {
                 ACPI_EXCEPTION((AE_INFO, status,
                                 "Thread %lX could not acquire Mutex [%X]",
-                                (unsigned long) this_thread_id, mutex_id));
+                                (unsigned long)this_thread_id, mutex_id));
         }
 
         return (status);
@@ -287,7 +287,7 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
         this_thread_id = acpi_os_get_thread_id();
         ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
                           "Thread %lX releasing Mutex [%s]\n",
-                          (unsigned long) this_thread_id,
+                          (unsigned long)this_thread_id,
                           acpi_ut_get_mutex_name(mutex_id)));
 
         if (mutex_id > ACPI_MAX_MUTEX) {
diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c
index e8fe1ba6cc24..cbbd3315a1e2 100644
--- a/drivers/acpi/utilities/utresrc.c
+++ b/drivers/acpi/utilities/utresrc.c
@@ -46,7 +46,6 @@
 
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utresrc")
-
 #if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER)
 /*
  * Strings used to decode resource descriptors.
diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c
index de3276f4f468..e9a57806cd34 100644
--- a/drivers/acpi/utilities/utxface.c
+++ b/drivers/acpi/utilities/utxface.c
@@ -337,7 +337,6 @@ acpi_status acpi_terminate(void)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_terminate)
-
 #ifdef ACPI_FUTURE_USAGE
 /*******************************************************************************
  *
@@ -470,7 +469,6 @@ acpi_install_initialization_handler(acpi_init_handler handler, u32 function)
 
 ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler)
 #endif                          /*  ACPI_FUTURE_USAGE  */
-
 /*****************************************************************************
  *
  * FUNCTION:    acpi_purge_cached_objects
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 45dbdc14915f..f031b8732330 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "Serial ATA (prod) and Parallel ATA (experimental) drivers"
+        depends on HAS_IOMEM
 
 config ATA
         tristate "ATA device support"
@@ -435,7 +436,7 @@ config PATA_OPTIDMA
         help
           This option enables DMA/PIO support for the later OPTi
           controllers found on some old motherboards and in some
-          latops
+          laptops.
 
           If unsure, say N.
 
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index 03a0acff6cfa..cb3eab6e379d 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -489,8 +489,7 @@ static void taskfile_load_raw(struct ata_port *ap,
 
         /* convert gtf to tf */
         tf.flags |= ATA_TFLAG_ISADDR | ATA_TFLAG_DEVICE; /* TBD */
-        tf.protocol = atadev->class == ATA_DEV_ATAPI ?
-                ATA_PROT_ATAPI_NODATA : ATA_PROT_NODATA;
+        tf.protocol = ATA_PROT_NODATA;
         tf.feature = gtf->tfa[0];       /* 0x1f1 */
         tf.nsect   = gtf->tfa[1];       /* 0x1f2 */
         tf.lbal    = gtf->tfa[2];       /* 0x1f3 */
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index a7950885d18e..4595d1f8cf60 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -895,6 +895,7 @@ static u64 ata_read_native_max_address(struct ata_device *dev)
 /**
  *      ata_set_native_max_address_ext  -       LBA48 native max set
  *      @dev: Device to query
+ *      @new_sectors: new max sectors value to set for the device
  *
  *      Perform an LBA48 size set max upon the device in question. Return the
  *      actual LBA48 size or zero if the command fails.
@@ -932,6 +933,7 @@ static u64 ata_set_native_max_address_ext(struct ata_device *dev, u64 new_sector
 /**
  *      ata_set_native_max_address      -       LBA28 native max set
  *      @dev: Device to query
+ *      @new_sectors: new max sectors value to set for the device
  *
  *      Perform an LBA28 size set max upon the device in question. Return the
  *      actual LBA28 size or zero if the command fails.
@@ -1316,7 +1318,7 @@ void ata_port_flush_task(struct ata_port *ap)
         spin_unlock_irqrestore(ap->lock, flags);
 
         DPRINTK("flush #1\n");
-        flush_workqueue(ata_wq);
+        cancel_work_sync(&ap->port_task.work); /* akpm: seems unneeded */
 
         /*
          * At this point, if a task is running, it's guaranteed to see
@@ -1327,7 +1329,7 @@ void ata_port_flush_task(struct ata_port *ap)
                 if (ata_msg_ctl(ap))
                         ata_port_printk(ap, KERN_DEBUG, "%s: flush #2\n",
                                         __FUNCTION__);
-                flush_workqueue(ata_wq);
+                cancel_work_sync(&ap->port_task.work);
         }
 
         spin_lock_irqsave(ap->lock, flags);
@@ -6475,9 +6477,9 @@ void ata_port_detach(struct ata_port *ap)
         /* Flush hotplug task.  The sequence is similar to
          * ata_port_flush_task().
          */
-        flush_workqueue(ata_aux_wq);
+        cancel_work_sync(&ap->hotplug_task.work); /* akpm: why? */
         cancel_delayed_work(&ap->hotplug_task);
-        flush_workqueue(ata_aux_wq);
+        cancel_work_sync(&ap->hotplug_task.work);
 
  skip_eh:
         /* remove the associated SCSI host */
diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c
index 75dc84797ff3..11245e331f77 100644
--- a/drivers/ata/pata_pcmcia.c
+++ b/drivers/ata/pata_pcmcia.c
@@ -357,6 +357,7 @@ static struct pcmcia_device_id pcmcia_devices[] = {
         PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000),        /* I-O Data CFA */
         PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001),        /* Mitsubishi CFA */
         PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704),
+        PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904),
         PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401),        /* SanDisk CFA */
         PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000),        /* Toshiba */
         PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d),
diff --git a/drivers/ata/pata_qdi.c b/drivers/ata/pata_qdi.c
index 27685ce63ceb..fb8c9e14b8d4 100644
--- a/drivers/ata/pata_qdi.c
+++ b/drivers/ata/pata_qdi.c
@@ -375,7 +375,7 @@ static __init int qdi_init(void)
                                 res = inb(port + 3);
                                 if (res & 1) {
                                         /* Single channel mode */
-                                        if (qdi_init_one(port, 6580, ide_port[r & 0x01], ide_irq[r & 0x01], r & 0x04))
+                                        if (qdi_init_one(port, 6580, ide_port[r & 0x01], ide_irq[r & 0x01], r & 0x04) == 0)
                                                 ct++;
                                 } else {
                                         /* Dual channel mode */
diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c
index 5df354d573e8..203f463ac39f 100644
--- a/drivers/ata/pata_scc.c
+++ b/drivers/ata/pata_scc.c
@@ -1142,14 +1142,14 @@ static int scc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
         static int printed_version;
         unsigned int board_idx = (unsigned int) ent->driver_data;
         const struct ata_port_info *ppi[] = { &scc_port_info[board_idx], NULL };
-        struct device *dev = &pdev->dev;
+        struct ata_host *host;
         int rc;
 
         if (!printed_version++)
                 dev_printk(KERN_DEBUG, &pdev->dev,
                            "version " DRV_VERSION "\n");
 
-        host = ata_port_alloc_pinfo(&pdev->dev, ppi, 1);
+        host = ata_host_alloc_pinfo(&pdev->dev, ppi, 1);
         if (!host)
                 return -ENOMEM;
 
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index e2e795e58236..a097595d4dc7 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -257,6 +257,8 @@ static void nv_adma_port_stop(struct ata_port *ap);
 static int nv_adma_port_suspend(struct ata_port *ap, pm_message_t mesg);
 static int nv_adma_port_resume(struct ata_port *ap);
 #endif
+static void nv_adma_freeze(struct ata_port *ap);
+static void nv_adma_thaw(struct ata_port *ap);
 static void nv_adma_error_handler(struct ata_port *ap);
 static void nv_adma_host_stop(struct ata_host *host);
 static void nv_adma_post_internal_cmd(struct ata_queued_cmd *qc);
@@ -444,8 +446,8 @@ static const struct ata_port_operations nv_adma_ops = {
         .bmdma_status           = ata_bmdma_status,
         .qc_prep                = nv_adma_qc_prep,
         .qc_issue               = nv_adma_qc_issue,
-        .freeze                 = nv_ck804_freeze,
-        .thaw                   = nv_ck804_thaw,
+        .freeze                 = nv_adma_freeze,
+        .thaw                   = nv_adma_thaw,
         .error_handler          = nv_adma_error_handler,
         .post_internal_cmd      = nv_adma_post_internal_cmd,
         .data_xfer              = ata_data_xfer,
@@ -815,8 +817,16 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
                         u16 status;
                         u32 gen_ctl;
                         u32 notifier, notifier_error;
+                        
+                        /* if ADMA is disabled, use standard ata interrupt handler */
+                        if (pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE) {
+                                u8 irq_stat = readb(host->iomap[NV_MMIO_BAR] + NV_INT_STATUS_CK804)
+                                        >> (NV_INT_PORT_SHIFT * i);
+                                handled += nv_host_intr(ap, irq_stat);
+                                continue;
+                        }
 
-                        /* if in ATA register mode, use standard ata interrupt handler */
+                        /* if in ATA register mode, check for standard interrupts */
                         if (pp->flags & NV_ADMA_PORT_REGISTER_MODE) {
                                 u8 irq_stat = readb(host->iomap[NV_MMIO_BAR] + NV_INT_STATUS_CK804)
                                         >> (NV_INT_PORT_SHIFT * i);
@@ -826,7 +836,6 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
                                             command is active, to prevent losing interrupts. */
                                         irq_stat |= NV_INT_DEV;
                                 handled += nv_host_intr(ap, irq_stat);
-                                continue;
                         }
 
                         notifier = readl(mmio + NV_ADMA_NOTIFIER);
@@ -912,22 +921,77 @@ static irqreturn_t nv_adma_interrupt(int irq, void *dev_instance)
         return IRQ_RETVAL(handled);
 }
 
+static void nv_adma_freeze(struct ata_port *ap)
+{
+        struct nv_adma_port_priv *pp = ap->private_data;
+        void __iomem *mmio = pp->ctl_block;
+        u16 tmp;
+
+        nv_ck804_freeze(ap);
+
+        if (pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE)
+                return;
+
+        /* clear any outstanding CK804 notifications */
+        writeb( NV_INT_ALL << (ap->port_no * NV_INT_PORT_SHIFT),
+                ap->host->iomap[NV_MMIO_BAR] + NV_INT_STATUS_CK804);
+
+        /* Disable interrupt */
+        tmp = readw(mmio + NV_ADMA_CTL);
+        writew( tmp & ~(NV_ADMA_CTL_AIEN | NV_ADMA_CTL_HOTPLUG_IEN),
+                mmio + NV_ADMA_CTL);
+        readw( mmio + NV_ADMA_CTL );    /* flush posted write */
+}
+
+static void nv_adma_thaw(struct ata_port *ap)
+{
+        struct nv_adma_port_priv *pp = ap->private_data;
+        void __iomem *mmio = pp->ctl_block;
+        u16 tmp;
+
+        nv_ck804_thaw(ap);
+
+        if (pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE)
+                return;
+
+        /* Enable interrupt */
+        tmp = readw(mmio + NV_ADMA_CTL);
+        writew( tmp | (NV_ADMA_CTL_AIEN | NV_ADMA_CTL_HOTPLUG_IEN),
+                mmio + NV_ADMA_CTL);
+        readw( mmio + NV_ADMA_CTL );    /* flush posted write */
+}
+
 static void nv_adma_irq_clear(struct ata_port *ap)
 {
         struct nv_adma_port_priv *pp = ap->private_data;
         void __iomem *mmio = pp->ctl_block;
-        u16 status = readw(mmio + NV_ADMA_STAT);
-        u32 notifier = readl(mmio + NV_ADMA_NOTIFIER);
-        u32 notifier_error = readl(mmio + NV_ADMA_NOTIFIER_ERROR);
-        void __iomem *dma_stat_addr = ap->ioaddr.bmdma_addr + ATA_DMA_STATUS;
+        u32 notifier_clears[2];
 
-        /* clear ADMA status */
-        writew(status, mmio + NV_ADMA_STAT);
-        writel(notifier | notifier_error,
-               pp->notifier_clear_block);
+        if (pp->flags & NV_ADMA_ATAPI_SETUP_COMPLETE) {
+                ata_bmdma_irq_clear(ap);
+                return;
+        }
+
+        /* clear any outstanding CK804 notifications */
+        writeb( NV_INT_ALL << (ap->port_no * NV_INT_PORT_SHIFT),
+                ap->host->iomap[NV_MMIO_BAR] + NV_INT_STATUS_CK804);
 
-        /** clear legacy status */
-        iowrite8(ioread8(dma_stat_addr), dma_stat_addr);
+        /* clear ADMA status */
+        writew(0xffff, mmio + NV_ADMA_STAT);
+        
+        /* clear notifiers - note both ports need to be written with
+           something even though we are only clearing on one */
+        if (ap->port_no == 0) {
+                notifier_clears[0] = 0xFFFFFFFF;
+                notifier_clears[1] = 0;
+        } else {
+                notifier_clears[0] = 0;
+                notifier_clears[1] = 0xFFFFFFFF;
+        }
+        pp = ap->host->ports[0]->private_data;
+        writel(notifier_clears[0], pp->notifier_clear_block);
+        pp = ap->host->ports[1]->private_data;
+        writel(notifier_clears[1], pp->notifier_clear_block);
 }
 
 static void nv_adma_post_internal_cmd(struct ata_queued_cmd *qc)
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c
index f56549b90aa6..3a7d9b5332af 100644
--- a/drivers/ata/sata_promise.c
+++ b/drivers/ata/sata_promise.c
@@ -45,7 +45,7 @@
 #include "sata_promise.h"
 
 #define DRV_NAME        "sata_promise"
-#define DRV_VERSION     "2.05"
+#define DRV_VERSION     "2.07"
 
 
 enum {
@@ -653,6 +653,8 @@ static void pdc_error_intr(struct ata_port *ap, struct ata_queued_cmd *qc,
         qc->err_mask |= ac_err_mask;
 
         pdc_reset_port(ap);
+
+        ata_port_abort(ap);
 }
 
 static inline unsigned int pdc_host_intr( struct ata_port *ap,
@@ -924,6 +926,7 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
         struct ata_host *host;
         void __iomem *base;
         int n_ports, i, rc;
+        int is_sataii_tx4;
 
         if (!printed_version++)
                 dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n");
@@ -962,10 +965,23 @@ static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *e
         }
         host->iomap = pcim_iomap_table(pdev);
 
-        for (i = 0; i < host->n_ports; i++)
+        is_sataii_tx4 = 0;
+        if ((pi->flags & (PDC_FLAG_GEN_II|PDC_FLAG_4_PORTS)) == (PDC_FLAG_GEN_II|PDC_FLAG_4_PORTS)) {
+                is_sataii_tx4 = 1;
+                dev_printk(KERN_INFO, &pdev->dev, "applying SATAII TX4 port numbering workaround\n");
+        }
+        for (i = 0; i < host->n_ports; i++) {
+                static const unsigned char sataii_tx4_port_remap[4] = { 3, 1, 0, 2};
+                int ata_nr;
+
+                ata_nr = i;
+                if (is_sataii_tx4)
+                        ata_nr = sataii_tx4_port_remap[i];
+
                 pdc_ata_setup_port(host->ports[i],
-                                   base + 0x200 + i * 0x80,
-                                   base + 0x400 + i * 0x100);
+                                   base + 0x200 + ata_nr * 0x80,
+                                   base + 0x400 + ata_nr * 0x100);
+        }
 
         /* initialize adapter */
         pdc_host_init(host);
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index 305ab7c68ca5..939c9246fdd1 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -93,6 +93,10 @@ static struct pci_driver svia_pci_driver = {
         .name                   = DRV_NAME,
         .id_table               = svia_pci_tbl,
         .probe                  = svia_init_one,
+#ifdef CONFIG_PM
+        .suspend                = ata_pci_device_suspend,
+        .resume                 = ata_pci_device_resume,
+#endif
         .remove                 = ata_pci_remove_one,
 };
 
@@ -112,6 +116,10 @@ static struct scsi_host_template svia_sht = {
         .slave_configure        = ata_scsi_slave_config,
         .slave_destroy          = ata_scsi_slave_destroy,
         .bios_param             = ata_std_bios_param,
+#ifdef CONFIG_PM
+        .suspend                = ata_scsi_device_suspend,
+        .resume                 = ata_scsi_device_resume,
+#endif
 };
 
 static const struct ata_port_operations vt6420_sata_ops = {
diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig
index 0300e7f54cc4..2e18a63ead36 100644
--- a/drivers/auxdisplay/Kconfig
+++ b/drivers/auxdisplay/Kconfig
@@ -6,6 +6,7 @@
 #
 
 menu "Auxiliary Display support"
+        depends on PARPORT
 
 config KS0108
         tristate "KS0108 LCD Controller"
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index e177c9533b6c..e1c0730a3b99 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -101,19 +101,6 @@ static void add_dr(struct device *dev, struct devres_node *node)
         list_add_tail(&node->entry, &dev->devres_head);
 }
 
-/**
- * devres_alloc - Allocate device resource data
- * @release: Release function devres will be associated with
- * @size: Allocation size
- * @gfp: Allocation flags
- *
- * allocate devres of @size bytes.  The allocated area is zeroed, then
- * associated with @release.  The returned pointer can be passed to
- * other devres_*() functions.
- *
- * RETURNS:
- * Pointer to allocated devres on success, NULL on failure.
- */
 #ifdef CONFIG_DEBUG_DEVRES
 void * __devres_alloc(dr_release_t release, size_t size, gfp_t gfp,
                       const char *name)
@@ -128,6 +115,19 @@ void * __devres_alloc(dr_release_t release, size_t size, gfp_t gfp,
 }
 EXPORT_SYMBOL_GPL(__devres_alloc);
 #else
+/**
+ * devres_alloc - Allocate device resource data
+ * @release: Release function devres will be associated with
+ * @size: Allocation size
+ * @gfp: Allocation flags
+ *
+ * Allocate devres of @size bytes.  The allocated area is zeroed, then
+ * associated with @release.  The returned pointer can be passed to
+ * other devres_*() functions.
+ *
+ * RETURNS:
+ * Pointer to allocated devres on success, NULL on failure.
+ */
 void * devres_alloc(dr_release_t release, size_t size, gfp_t gfp)
 {
         struct devres *dr;
@@ -416,7 +416,7 @@ static int release_nodes(struct device *dev, struct list_head *first,
 }
 
 /**
- * devres_release_all - Release all resources
+ * devres_release_all - Release all managed resources
  * @dev: Device to release resources for
  *
  * Release all resources associated with @dev.  This function is
@@ -600,7 +600,7 @@ static int devm_kzalloc_match(struct device *dev, void *res, void *data)
 }
 
 /**
- * devm_kzalloc - Managed kzalloc
+ * devm_kzalloc - Resource-managed kzalloc
  * @dev: Device to allocate memory for
  * @size: Allocation size
  * @gfp: Allocation gfp flags
@@ -628,7 +628,7 @@ void * devm_kzalloc(struct device *dev, size_t size, gfp_t gfp)
 EXPORT_SYMBOL_GPL(devm_kzalloc);
 
 /**
- * devm_kfree - Managed kfree
+ * devm_kfree - Resource-managed kfree
  * @dev: Device this memory belongs to
  * @p: Memory to free
  *
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index eb84d9d44645..869ff8c00146 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -360,7 +360,7 @@ EXPORT_SYMBOL_GPL(platform_device_unregister);
  *      This function creates a simple platform device that requires minimal
  *      resource and memory management. Canned release function freeing
  *      memory allocated for the device allows drivers using such devices
- *      to be unloaded iwithout waiting for the last reference to the device
+ *      to be unloaded without waiting for the last reference to the device
  *      to be dropped.
  *
  *      This interface is primarily intended for use with legacy drivers
diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index 067a9e8bc377..8d8cdfec6529 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -126,10 +126,13 @@ static int __cpuinit topology_cpu_callback(struct notifier_block *nfb,
 
         switch (action) {
         case CPU_UP_PREPARE:
+        case CPU_UP_PREPARE_FROZEN:
                 rc = topology_add_dev(cpu);
                 break;
         case CPU_UP_CANCELED:
+        case CPU_UP_CANCELED_FROZEN:
         case CPU_DEAD:
+        case CPU_DEAD_FROZEN:
                 topology_remove_dev(cpu);
                 break;
         }
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 17ee97f3a99b..b4c8319138b2 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -444,8 +444,6 @@ config CDROM_PKTCDVD_WCACHE
           this option is dangerous unless the CD-RW media is known good, as we
           don't do deferred write error handling yet.
 
-source "drivers/s390/block/Kconfig"
-
 config ATA_OVER_ETH
         tristate "ATA over Ethernet support"
         depends on NET
@@ -453,6 +451,8 @@ config ATA_OVER_ETH
         This driver provides Support for ATA over Ethernet block
         devices like the Coraid EtherDrive (R) Storage Blade.
 
+source "drivers/s390/block/Kconfig"
+
 endmenu
 
 endif
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index af6d7274a7cc..18cdd8c77626 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -243,17 +243,13 @@ static int do_lo_send_aops(struct loop_device *lo, struct bio_vec *bvec,
                 transfer_result = lo_do_transfer(lo, WRITE, page, offset,
                                 bvec->bv_page, bv_offs, size, IV);
                 if (unlikely(transfer_result)) {
-                        char *kaddr;
-
                         /*
                          * The transfer failed, but we still write the data to
                          * keep prepare/commit calls balanced.
                          */
                         printk(KERN_ERR "loop: transfer error block %llu\n",
                                (unsigned long long)index);
-                        kaddr = kmap_atomic(page, KM_USER0);
-                        memset(kaddr + offset, 0, size);
-                        kunmap_atomic(kaddr, KM_USER0);
+                        zero_user_page(page, offset, size, KM_USER0);
                 }
                 flush_dcache_page(page);
                 ret = aops->commit_write(file, page, offset,
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 090796bef78f..069ae39a9cd9 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -366,20 +366,25 @@ static struct disk_attribute pid_attr = {
         .show = pid_show,
 };
 
-static void nbd_do_it(struct nbd_device *lo)
+static int nbd_do_it(struct nbd_device *lo)
 {
         struct request *req;
+        int ret;
 
         BUG_ON(lo->magic != LO_MAGIC);
 
         lo->pid = current->pid;
-        sysfs_create_file(&lo->disk->kobj, &pid_attr.attr);
+        ret = sysfs_create_file(&lo->disk->kobj, &pid_attr.attr);
+        if (ret) {
+                printk(KERN_ERR "nbd: sysfs_create_file failed!");
+                return ret;
+        }
 
         while ((req = nbd_read_stat(lo)) != NULL)
                 nbd_end_request(req);
 
         sysfs_remove_file(&lo->disk->kobj, &pid_attr.attr);
-        return;
+        return 0;
 }
 
 static void nbd_clear_que(struct nbd_device *lo)
@@ -569,7 +574,9 @@ static int nbd_ioctl(struct inode *inode, struct file *file,
         case NBD_DO_IT:
                 if (!lo->file)
                         return -EINVAL;
-                nbd_do_it(lo);
+                error = nbd_do_it(lo);
+                if (error)
+                        return error;
                 /* on return tidy up in case we have a signal */
                 /* Forcibly shutdown the socket causing all listeners
                  * to error
diff --git a/drivers/block/rd.c b/drivers/block/rd.c
index 43d4ebcb3b44..a1512da32410 100644
--- a/drivers/block/rd.c
+++ b/drivers/block/rd.c
@@ -151,7 +151,7 @@ static int ramdisk_commit_write(struct file *file, struct page *page,
 }
 
 /*
- * ->writepage to the the blockdev's mapping has to redirty the page so that the
+ * ->writepage to the blockdev's mapping has to redirty the page so that the
  * VM doesn't go and steal it.  We return AOP_WRITEPAGE_ACTIVATE so that the VM
  * won't try to (pointlessly) write the page again for a while.
  *
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 1e32fb834eb8..abcafac64738 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -6,6 +6,7 @@ menu "Character devices"
 
 config VT
         bool "Virtual terminal" if EMBEDDED
+        depends on !S390
         select INPUT
         default y if !VIOCONS
         ---help---
@@ -81,6 +82,7 @@ config VT_HW_CONSOLE_BINDING
 
 config SERIAL_NONSTANDARD
         bool "Non-standard serial port support"
+        depends on HAS_IOMEM
         ---help---
           Say Y here if you have any non-standard serial boards -- boards
           which aren't supported using the standard "dumb" serial driver.
@@ -631,7 +633,8 @@ config HVC_CONSOLE
 
 config HVC_ISERIES
         bool "iSeries Hypervisor Virtual Console support"
-        depends on PPC_ISERIES && !VIOCONS
+        depends on PPC_ISERIES
+        default y
         select HVC_DRIVER
         help
           iSeries machines support a hypervisor virtual console.
@@ -764,7 +767,7 @@ config NVRAM
 
 config RTC
         tristate "Enhanced Real Time Clock Support"
-        depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM && !SUPERH
+        depends on !PPC && !PARISC && !IA64 && !M68K && (!SPARC || PCI) && !FRV && !ARM && !SUPERH && !S390
         ---help---
           If you say Y here and create a character special file /dev/rtc with
           major number 10 and minor number 135 using mknod ("man mknod"), you
@@ -812,7 +815,7 @@ config SGI_IP27_RTC
 
 config GEN_RTC
         tristate "Generic /dev/rtc emulation"
-        depends on RTC!=y && !IA64 && !ARM && !M32R && !SPARC && !FRV
+        depends on RTC!=y && !IA64 && !ARM && !M32R && !SPARC && !FRV && !S390
         ---help---
           If you say Y here and create a character special file /dev/rtc with
           major number 10 and minor number 135 using mknod ("man mknod"), you
@@ -857,6 +860,7 @@ config COBALT_LCD
 
 config DTLK
         tristate "Double Talk PC internal speech card support"
+        depends on ISA
         help
           This driver is for the DoubleTalk PC, a speech synthesizer
           manufactured by RC Systems (<http://www.rcsys.com/>).  It is also
@@ -1042,7 +1046,7 @@ config HPET_MMAP
 
 config HANGCHECK_TIMER
         tristate "Hangcheck timer"
-        depends on X86 || IA64 || PPC64
+        depends on X86 || IA64 || PPC64 || S390
         help
           The hangcheck-timer module detects when the system has gone
           out to lunch past a certain margin.  It can reboot the system
@@ -1077,5 +1081,7 @@ config DEVPORT
         depends on ISA || PCI
         default y
 
+source "drivers/s390/char/Kconfig"
+
 endmenu
 
diff --git a/drivers/char/drm/drm_dma.c b/drivers/char/drm/drm_dma.c
index 892db7096986..32ed19c9ec1c 100644
--- a/drivers/char/drm/drm_dma.c
+++ b/drivers/char/drm/drm_dma.c
@@ -65,7 +65,7 @@ int drm_dma_setup(drm_device_t * dev)
  * \param dev DRM device.
  *
  * Free all pages associated with DMA buffers, the buffers and pages lists, and
- * finally the the drm_device::dma structure itself.
+ * finally the drm_device::dma structure itself.
  */
 void drm_dma_takedown(drm_device_t * dev)
 {
diff --git a/drivers/char/drm/drm_vm.c b/drivers/char/drm/drm_vm.c
index 35540cfb43dd..b5c5b9fa84c3 100644
--- a/drivers/char/drm/drm_vm.c
+++ b/drivers/char/drm/drm_vm.c
@@ -157,7 +157,7 @@ static __inline__ struct page *drm_do_vm_nopage(struct vm_area_struct *vma,
  * \param address access address.
  * \return pointer to the page structure.
  *
- * Get the the mapping, find the real physical page to map, get the page, and
+ * Get the mapping, find the real physical page to map, get the page, and
  * return it.
  */
 static __inline__ struct page *drm_do_vm_shm_nopage(struct vm_area_struct *vma,
diff --git a/drivers/char/drm/r300_reg.h b/drivers/char/drm/r300_reg.h
index a881f96c983e..ecda760ae8c0 100644
--- a/drivers/char/drm/r300_reg.h
+++ b/drivers/char/drm/r300_reg.h
@@ -293,7 +293,7 @@ I am fairly certain that they are correct unless stated otherwise in comments.
 #       define R300_PVS_CNTL_1_PROGRAM_START_SHIFT   0
 #       define R300_PVS_CNTL_1_POS_END_SHIFT         10
 #       define R300_PVS_CNTL_1_PROGRAM_END_SHIFT     20
-/* Addresses are relative the the vertex program parameters area. */
+/* Addresses are relative to the vertex program parameters area. */
 #define R300_VAP_PVS_CNTL_2                 0x22D4
 #       define R300_PVS_CNTL_2_PARAM_OFFSET_SHIFT 0
 #       define R300_PVS_CNTL_2_PARAM_COUNT_SHIFT  16
diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
index 49f914e79216..9e1fc02967ff 100644
--- a/drivers/char/genrtc.c
+++ b/drivers/char/genrtc.c
@@ -12,7 +12,7 @@
  *
  *      This driver allows use of the real time clock (built into
  *      nearly all computers) from user space. It exports the /dev/rtc
- *      interface supporting various ioctl() and also the /proc/dev/rtc
+ *      interface supporting various ioctl() and also the /proc/driver/rtc
  *      pseudo-file for status information.
  *
  *      The ioctls can be used to set the interrupt behaviour where
@@ -377,7 +377,7 @@ static int gen_rtc_release(struct inode *inode, struct file *file)
 #ifdef CONFIG_PROC_FS
 
 /*
- *      Info exported via "/proc/rtc".
+ *      Info exported via "/proc/driver/rtc".
  */
 
 static int gen_rtc_proc_output(char *buf)
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 5f3acd8e64b8..7cda04b33534 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -91,3 +91,17 @@ config HW_RANDOM_OMAP
           module will be called omap-rng.
 
           If unsure, say Y.
+
+config HW_RANDOM_PASEMI
+        tristate "PA Semi HW Random Number Generator support"
+        depends on HW_RANDOM && PPC_PASEMI
+        default HW_RANDOM
+        ---help---
+          This driver provides kernel-side support for the Random Number
+          Generator hardware found on PA6T-1682M processor.
+
+          To compile this driver as a module, choose M here: the
+          module will be called pasemi-rng.
+
+          If unsure, say Y.
+
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index c41fa19454e3..c8b7300e2fb1 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -10,3 +10,4 @@ obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o
 obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o
 obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o
 obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o
+obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o
diff --git a/drivers/char/hw_random/pasemi-rng.c b/drivers/char/hw_random/pasemi-rng.c
new file mode 100644
index 000000000000..fa6040b6c8f2
--- /dev/null
+++ b/drivers/char/hw_random/pasemi-rng.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright (C) 2006-2007 PA Semi, Inc
+ *
+ * Maintained by: Olof Johansson <olof@lixom.net>
+ *
+ * Driver for the PWRficient onchip rng
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/hw_random.h>
+#include <asm/of_platform.h>
+#include <asm/io.h>
+
+#define SDCRNG_CTL_REG                  0x00
+#define   SDCRNG_CTL_FVLD_M             0x0000f000
+#define   SDCRNG_CTL_FVLD_S             12
+#define   SDCRNG_CTL_KSZ                0x00000800
+#define   SDCRNG_CTL_RSRC_CRG           0x00000010
+#define   SDCRNG_CTL_RSRC_RRG           0x00000000
+#define   SDCRNG_CTL_CE                 0x00000004
+#define   SDCRNG_CTL_RE                 0x00000002
+#define   SDCRNG_CTL_DR                 0x00000001
+#define   SDCRNG_CTL_SELECT_RRG_RNG     (SDCRNG_CTL_RE | SDCRNG_CTL_RSRC_RRG)
+#define   SDCRNG_CTL_SELECT_CRG_RNG     (SDCRNG_CTL_CE | SDCRNG_CTL_RSRC_CRG)
+#define SDCRNG_VAL_REG                  0x20
+
+#define MODULE_NAME "pasemi_rng"
+
+static int pasemi_rng_data_present(struct hwrng *rng)
+{
+        void __iomem *rng_regs = (void __iomem *)rng->priv;
+
+        return (in_le32(rng_regs + SDCRNG_CTL_REG)
+                & SDCRNG_CTL_FVLD_M) ? 1 : 0;
+}
+
+static int pasemi_rng_data_read(struct hwrng *rng, u32 *data)
+{
+        void __iomem *rng_regs = (void __iomem *)rng->priv;
+        *data = in_le32(rng_regs + SDCRNG_VAL_REG);
+        return 4;
+}
+
+static int pasemi_rng_init(struct hwrng *rng)
+{
+        void __iomem *rng_regs = (void __iomem *)rng->priv;
+        u32 ctl;
+
+        ctl = SDCRNG_CTL_DR | SDCRNG_CTL_SELECT_RRG_RNG | SDCRNG_CTL_KSZ;
+        out_le32(rng_regs + SDCRNG_CTL_REG, ctl);
+        out_le32(rng_regs + SDCRNG_CTL_REG, ctl & ~SDCRNG_CTL_DR);
+
+        return 0;
+}
+
+static void pasemi_rng_cleanup(struct hwrng *rng)
+{
+        void __iomem *rng_regs = (void __iomem *)rng->priv;
+        u32 ctl;
+
+        ctl = SDCRNG_CTL_RE | SDCRNG_CTL_CE;
+        out_le32(rng_regs + SDCRNG_CTL_REG,
+                 in_le32(rng_regs + SDCRNG_CTL_REG) & ~ctl);
+}
+
+static struct hwrng pasemi_rng = {
+        .name           = MODULE_NAME,
+        .init           = pasemi_rng_init,
+        .cleanup        = pasemi_rng_cleanup,
+        .data_present   = pasemi_rng_data_present,
+        .data_read      = pasemi_rng_data_read,
+};
+
+static int __devinit rng_probe(struct of_device *ofdev,
+                               const struct of_device_id *match)
+{
+        void __iomem *rng_regs;
+        struct device_node *rng_np = ofdev->node;
+        struct resource res;
+        int err = 0;
+
+        err = of_address_to_resource(rng_np, 0, &res);
+        if (err)
+                return -ENODEV;
+
+        rng_regs = ioremap(res.start, 0x100);
+
+        if (!rng_regs)
+                return -ENOMEM;
+
+        pasemi_rng.priv = (unsigned long)rng_regs;
+
+        printk(KERN_INFO "Registering PA Semi RNG\n");
+
+        err = hwrng_register(&pasemi_rng);
+
+        if (err)
+                iounmap(rng_regs);
+
+        return err;
+}
+
+static int __devexit rng_remove(struct of_device *dev)
+{
+        void __iomem *rng_regs = (void __iomem *)pasemi_rng.priv;
+
+        hwrng_unregister(&pasemi_rng);
+        iounmap(rng_regs);
+
+        return 0;
+}
+
+static struct of_device_id rng_match[] = {
+        {
+                .compatible      = "1682m-rng",
+        },
+        {},
+};
+
+static struct of_platform_driver rng_driver = {
+        .name           = "pasemi-rng",
+        .match_table    = rng_match,
+        .probe          = rng_probe,
+        .remove         = rng_remove,
+};
+
+static int __init rng_init(void)
+{
+        return of_register_platform_driver(&rng_driver);
+}
+module_init(rng_init);
+
+static void __exit rng_exit(void)
+{
+        of_unregister_platform_driver(&rng_driver);
+}
+module_exit(rng_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Egor Martovetsky <egor@pasemi.com>");
+MODULE_DESCRIPTION("H/W RNG driver for PA Semi processor");
diff --git a/drivers/char/ipmi/Kconfig b/drivers/char/ipmi/Kconfig
index a6dcb2918157..b894f67fdf14 100644
--- a/drivers/char/ipmi/Kconfig
+++ b/drivers/char/ipmi/Kconfig
@@ -3,6 +3,8 @@
 #
 
 menu "IPMI"
+        depends on HAS_IOMEM
+
 config IPMI_HANDLER
        tristate 'IPMI top-level message handler'
        help
diff --git a/drivers/char/mmtimer.c b/drivers/char/mmtimer.c
index c09160383a53..6e55cfb9c65a 100644
--- a/drivers/char/mmtimer.c
+++ b/drivers/char/mmtimer.c
@@ -705,15 +705,13 @@ static int __init mmtimer_init(void)
         maxn++;
 
         /* Allocate list of node ptrs to mmtimer_t's */
-        timers = kmalloc(sizeof(mmtimer_t *)*maxn, GFP_KERNEL);
+        timers = kzalloc(sizeof(mmtimer_t *)*maxn, GFP_KERNEL);
         if (timers == NULL) {
                 printk(KERN_ERR "%s: failed to allocate memory for device\n",
                                 MMTIMER_NAME);
                 goto out3;
         }
 
-        memset(timers,0,(sizeof(mmtimer_t *)*maxn));
-
         /* Allocate mmtimer_t's for each online node */
         for_each_online_node(node) {
                 timers[node] = kmalloc_node(sizeof(mmtimer_t)*NUM_COMPARATORS, GFP_KERNEL, node);
diff --git a/drivers/char/pcmcia/Kconfig b/drivers/char/pcmcia/Kconfig
index 27c1179ee527..f25facd97bb4 100644
--- a/drivers/char/pcmcia/Kconfig
+++ b/drivers/char/pcmcia/Kconfig
@@ -21,6 +21,7 @@ config SYNCLINK_CS
 config CARDMAN_4000
         tristate "Omnikey Cardman 4000 support"
         depends on PCMCIA
+        select BITREVERSE
         help
           Enable support for the Omnikey Cardman 4000 PCMCIA Smartcard
           reader.
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index e91b43a014b0..fee58e03dbe2 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -31,6 +31,7 @@
 #include <linux/init.h>
 #include <linux/fs.h>
 #include <linux/delay.h>
+#include <linux/bitrev.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
 
@@ -194,41 +195,17 @@ static inline unsigned char xinb(unsigned short port)
 }
 #endif
 
-#define b_0000  15
-#define b_0001  14
-#define b_0010  13
-#define b_0011  12
-#define b_0100  11
-#define b_0101  10
-#define b_0110  9
-#define b_0111  8
-#define b_1000  7
-#define b_1001  6
-#define b_1010  5
-#define b_1011  4
-#define b_1100  3
-#define b_1101  2
-#define b_1110  1
-#define b_1111  0
-
-static unsigned char irtab[16] = {
-        b_0000, b_1000, b_0100, b_1100,
-        b_0010, b_1010, b_0110, b_1110,
-        b_0001, b_1001, b_0101, b_1101,
-        b_0011, b_1011, b_0111, b_1111
-};
+static inline unsigned char invert_revert(unsigned char ch)
+{
+        return bitrev8(~ch);
+}
 
 static void str_invert_revert(unsigned char *b, int len)
 {
         int i;
 
         for (i = 0; i < len; i++)
-                b[i] = (irtab[b[i] & 0x0f] << 4) | irtab[b[i] >> 4];
-}
-
-static unsigned char invert_revert(unsigned char ch)
-{
-        return (irtab[ch & 0x0f] << 4) | irtab[ch >> 4];
+                b[i] = invert_revert(b[i]);
 }
 
 #define ATRLENCK(dev,pos) \
@@ -1114,7 +1091,7 @@ static ssize_t cmm_write(struct file *filp, const char __user *buf,
         /*
          * wait for atr to become valid.
          * note: it is important to lock this code. if we dont, the monitor
-         * could be run between test_bit and the the call the sleep on the
+         * could be run between test_bit and the call to sleep on the
          * atr-queue.  if *then* the monitor detects atr valid, it will wake up
          * any process on the atr-queue, *but* since we have been interrupted,
          * we do not yet sleep on this queue. this would result in a missed
@@ -1881,8 +1858,11 @@ static int cm4000_probe(struct pcmcia_device *link)
         init_waitqueue_head(&dev->readq);
 
         ret = cm4000_config(link, i);
-        if (ret)
+        if (ret) {
+                dev_table[i] = NULL;
+                kfree(dev);
                 return ret;
+        }
 
         class_device_create(cmm_class, NULL, MKDEV(major, i), NULL,
                             "cmm%d", i);
@@ -1907,7 +1887,7 @@ static void cm4000_detach(struct pcmcia_device *link)
         cm4000_release(link);
 
         dev_table[devno] = NULL;
-        kfree(dev);
+        kfree(dev);
 
         class_device_destroy(cmm_class, MKDEV(major, devno));
 
@@ -1956,12 +1936,14 @@ static int __init cmm_init(void)
         if (major < 0) {
                 printk(KERN_WARNING MODULE_NAME
                         ": could not get major number\n");
+                class_destroy(cmm_class);
                 return major;
         }
 
         rc = pcmcia_register_driver(&cm4000_driver);
         if (rc < 0) {
                 unregister_chrdev(major, DEVICE_NAME);
+                class_destroy(cmm_class);
                 return rc;
         }
 
diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c
index f2e4ec4fd407..af88181a17f4 100644
--- a/drivers/char/pcmcia/cm4040_cs.c
+++ b/drivers/char/pcmcia/cm4040_cs.c
@@ -636,8 +636,11 @@ static int reader_probe(struct pcmcia_device *link)
         setup_timer(&dev->poll_timer, cm4040_do_poll, 0);
 
         ret = reader_config(link, i);
-        if (ret)
+        if (ret) {
+                dev_table[i] = NULL;
+                kfree(dev);
                 return ret;
+        }
 
         class_device_create(cmx_class, NULL, MKDEV(major, i), NULL,
                             "cmx%d", i);
@@ -708,12 +711,14 @@ static int __init cm4040_init(void)
         if (major < 0) {
                 printk(KERN_WARNING MODULE_NAME
                         ": could not get major number\n");
+                class_destroy(cmx_class);
                 return major;
         }
 
         rc = pcmcia_register_driver(&reader_driver);
         if (rc < 0) {
                 unregister_chrdev(major, DEVICE_NAME);
+                class_destroy(cmx_class);
                 return rc;
         }
 
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index fe00c7dfb649..dc4e1ff7f56f 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "TPM devices"
+        depends on HAS_IOMEM
 
 config TCG_TPM
         tristate "TPM Hardware Support"
@@ -33,7 +34,7 @@ config TCG_NSC
         tristate "National Semiconductor TPM Interface"
         depends on TCG_TPM && PNPACPI
         ---help---
-          If you have a TPM security chip from National Semicondutor 
+          If you have a TPM security chip from National Semiconductor 
           say Yes and it will be accessible from within Linux.  To 
           compile this driver as a module, choose M here; the module 
           will be called tpm_nsc.
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 7710a6a77d97..fc662e4ce58a 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -934,13 +934,6 @@ restart:
                 return -EINVAL;
 
         /*
-         *      No more input please, we are switching. The new ldisc
-         *      will update this value in the ldisc open function
-         */
-
-        tty->receive_room = 0;
-
-        /*
          *      Problem: What do we do if this blocks ?
          */
 
@@ -951,6 +944,13 @@ restart:
                 return 0;
         }
 
+        /*
+         *      No more input please, we are switching. The new ldisc
+         *      will update this value in the ldisc open function
+         */
+
+        tty->receive_room = 0;
+
         o_ldisc = tty->ldisc;
         o_tty = tty->link;
 
@@ -1573,11 +1573,11 @@ void no_tty(void)
 
 
 /**
- *      stop_tty        -       propogate flow control
+ *      stop_tty        -       propagate flow control
  *      @tty: tty to stop
  *
  *      Perform flow control to the driver. For PTY/TTY pairs we
- *      must also propogate the TIOCKPKT status. May be called
+ *      must also propagate the TIOCKPKT status. May be called
  *      on an already stopped device and will not re-call the driver
  *      method.
  *
@@ -1607,11 +1607,11 @@ void stop_tty(struct tty_struct *tty)
 EXPORT_SYMBOL(stop_tty);
 
 /**
- *      start_tty       -       propogate flow control
+ *      start_tty       -       propagate flow control
  *      @tty: tty to start
  *
  *      Start a tty that has been stopped if at all possible. Perform
- *      any neccessary wakeups and propogate the TIOCPKT status. If this
+ *      any neccessary wakeups and propagate the TIOCPKT status. If this
  *      is the tty was previous stopped and is being started then the
  *      driver start method is invoked and the line discipline woken.
  *
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 893dbaf386fb..eb37fba9b7ef 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1685,9 +1685,11 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
         if (sys_dev) {
                 switch (action) {
                 case CPU_ONLINE:
+                case CPU_ONLINE_FROZEN:
                         cpufreq_add_dev(sys_dev);
                         break;
                 case CPU_DOWN_PREPARE:
+                case CPU_DOWN_PREPARE_FROZEN:
                         if (unlikely(lock_policy_rwsem_write(cpu)))
                                 BUG();
 
@@ -1699,6 +1701,7 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
                         __cpufreq_remove_dev(sys_dev);
                         break;
                 case CPU_DOWN_FAILED:
+                case CPU_DOWN_FAILED_FROZEN:
                         cpufreq_add_dev(sys_dev);
                         break;
                 }
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index d1c7cac9316c..d2f0cbd8b8f3 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -313,9 +313,11 @@ static int cpufreq_stat_cpu_callback(struct notifier_block *nfb,
 
         switch (action) {
         case CPU_ONLINE:
+        case CPU_ONLINE_FROZEN:
                 cpufreq_update_policy(cpu);
                 break;
         case CPU_DEAD:
+        case CPU_DEAD_FROZEN:
                 cpufreq_stats_free_table(cpu);
                 break;
         }
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index f21fe66c9eef..e678a33ea672 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -51,9 +51,31 @@ config CRYPTO_DEV_GEODE
         default m
         help
           Say 'Y' here to use the AMD Geode LX processor on-board AES
-          engine for the CryptoAPI AES alogrithm.
+          engine for the CryptoAPI AES algorithm.
 
           To compile this driver as a module, choose M here: the module
           will be called geode-aes.
 
+config ZCRYPT
+        tristate "Support for PCI-attached cryptographic adapters"
+        depends on S390
+        select ZCRYPT_MONOLITHIC if ZCRYPT="y"
+        default "m"
+        help
+          Select this option if you want to use a PCI-attached cryptographic
+          adapter like:
+          + PCI Cryptographic Accelerator (PCICA)
+          + PCI Cryptographic Coprocessor (PCICC)
+          + PCI-X Cryptographic Coprocessor (PCIXCC)
+          + Crypto Express2 Coprocessor (CEX2C)
+          + Crypto Express2 Accelerator (CEX2A)
+
+config ZCRYPT_MONOLITHIC
+        bool "Monolithic zcrypt module"
+        depends on ZCRYPT="m"
+        help
+          Select this option if you want to have a single module z90crypt.ko
+          that contains all parts of the crypto device driver (ap bus,
+          request router and all the card drivers).
+
 endmenu
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 30d021d1a07c..72be6c63edfc 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "DMA Engine support"
+        depends on !S390
 
 config DMA_ENGINE
         bool "Support for DMA engines"
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index 4f0898400c6d..807c402df049 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -7,6 +7,7 @@
 #
 
 menu 'EDAC - error detection and reporting (RAS) (EXPERIMENTAL)'
+        depends on HAS_IOMEM
 
 config EDAC
         tristate "EDAC core system error reporting (EXPERIMENTAL)"
diff --git a/drivers/firewire/Kconfig b/drivers/firewire/Kconfig
new file mode 100644
index 000000000000..5932c72f9e42
--- /dev/null
+++ b/drivers/firewire/Kconfig
@@ -0,0 +1,61 @@
+# -*- shell-script -*-
+
+comment "An alternative FireWire stack is available with EXPERIMENTAL=y"
+        depends on EXPERIMENTAL=n
+
+config FIREWIRE
+        tristate "IEEE 1394 (FireWire) support (JUJU alternative stack, experimental)"
+        depends on EXPERIMENTAL
+        select CRC_ITU_T
+        help
+          IEEE 1394 describes a high performance serial bus, which is also
+          known as FireWire(tm) or i.Link(tm) and is used for connecting all
+          sorts of devices (most notably digital video cameras) to your
+          computer.
+
+          If you have FireWire hardware and want to use it, say Y here.  This
+          is the core support only, you will also need to select a driver for
+          your IEEE 1394 adapter.
+
+          To compile this driver as a module, say M here: the module will be
+          called fw-core.
+
+          This is the "JUJU" FireWire stack, an alternative implementation
+          designed for robustness and simplicity.  You can build either this
+          stack, or the classic stack (the ieee1394 driver, ohci1394 etc.)
+          or both.
+
+config FIREWIRE_OHCI
+        tristate "Support for OHCI FireWire host controllers"
+        depends on PCI && FIREWIRE
+        help
+          Enable this driver if you have a FireWire controller based
+          on the OHCI specification.  For all practical purposes, this
+          is the only chipset in use, so say Y here.
+
+          To compile this driver as a module, say M here:  The module will be
+          called fw-ohci.
+
+          If you also build ohci1394 of the classic IEEE 1394 driver stack,
+          blacklist either ohci1394 or fw-ohci to let hotplug load the desired
+          driver.
+
+config FIREWIRE_SBP2
+        tristate "Support for storage devices (SBP-2 protocol driver)"
+        depends on FIREWIRE && SCSI
+        help
+          This option enables you to use SBP-2 devices connected to a
+          FireWire bus.  SBP-2 devices include storage devices like
+          harddisks and DVD drives, also some other FireWire devices
+          like scanners.
+
+          To compile this driver as a module, say M here:  The module will be
+          called fw-sbp2.
+
+          You should also enable support for disks, CD-ROMs, etc. in the SCSI
+          configuration section.
+
+          If you also build sbp2 of the classic IEEE 1394 driver stack,
+          blacklist either sbp2 or fw-sbp2 to let hotplug load the desired
+          driver.
+
diff --git a/drivers/firewire/Makefile b/drivers/firewire/Makefile
new file mode 100644
index 000000000000..fc7d59d4bce0
--- /dev/null
+++ b/drivers/firewire/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the Linux IEEE 1394 implementation
+#
+
+fw-core-y += fw-card.o fw-topology.o fw-transaction.o fw-iso.o \
+        fw-device.o fw-cdev.o
+
+obj-$(CONFIG_FIREWIRE) += fw-core.o
+obj-$(CONFIG_FIREWIRE_OHCI) += fw-ohci.o
+obj-$(CONFIG_FIREWIRE_SBP2) += fw-sbp2.o
diff --git a/drivers/firewire/fw-card.c b/drivers/firewire/fw-card.c
new file mode 100644
index 000000000000..636151a64add
--- /dev/null
+++ b/drivers/firewire/fw-card.c
@@ -0,0 +1,560 @@
+/*
+ * Copyright (C) 2005-2007  Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/mutex.h>
+#include <linux/crc-itu-t.h>
+#include "fw-transaction.h"
+#include "fw-topology.h"
+#include "fw-device.h"
+
+int fw_compute_block_crc(u32 *block)
+{
+        __be32 be32_block[256];
+        int i, length;
+
+        length = (*block >> 16) & 0xff;
+        for (i = 0; i < length; i++)
+                be32_block[i] = cpu_to_be32(block[i + 1]);
+        *block |= crc_itu_t(0, (u8 *) be32_block, length * 4);
+
+        return length;
+}
+
+static DEFINE_MUTEX(card_mutex);
+static LIST_HEAD(card_list);
+
+static LIST_HEAD(descriptor_list);
+static int descriptor_count;
+
+#define BIB_CRC(v)              ((v) <<  0)
+#define BIB_CRC_LENGTH(v)       ((v) << 16)
+#define BIB_INFO_LENGTH(v)      ((v) << 24)
+
+#define BIB_LINK_SPEED(v)       ((v) <<  0)
+#define BIB_GENERATION(v)       ((v) <<  4)
+#define BIB_MAX_ROM(v)          ((v) <<  8)
+#define BIB_MAX_RECEIVE(v)      ((v) << 12)
+#define BIB_CYC_CLK_ACC(v)      ((v) << 16)
+#define BIB_PMC                 ((1) << 27)
+#define BIB_BMC                 ((1) << 28)
+#define BIB_ISC                 ((1) << 29)
+#define BIB_CMC                 ((1) << 30)
+#define BIB_IMC                 ((1) << 31)
+
+static u32 *
+generate_config_rom(struct fw_card *card, size_t *config_rom_length)
+{
+        struct fw_descriptor *desc;
+        static u32 config_rom[256];
+        int i, j, length;
+
+        /*
+         * Initialize contents of config rom buffer.  On the OHCI
+         * controller, block reads to the config rom accesses the host
+         * memory, but quadlet read access the hardware bus info block
+         * registers.  That's just crack, but it means we should make
+         * sure the contents of bus info block in host memory mathces
+         * the version stored in the OHCI registers.
+         */
+
+        memset(config_rom, 0, sizeof(config_rom));
+        config_rom[0] = BIB_CRC_LENGTH(4) | BIB_INFO_LENGTH(4) | BIB_CRC(0);
+        config_rom[1] = 0x31333934;
+
+        config_rom[2] =
+                BIB_LINK_SPEED(card->link_speed) |
+                BIB_GENERATION(card->config_rom_generation++ % 14 + 2) |
+                BIB_MAX_ROM(2) |
+                BIB_MAX_RECEIVE(card->max_receive) |
+                BIB_BMC | BIB_ISC | BIB_CMC | BIB_IMC;
+        config_rom[3] = card->guid >> 32;
+        config_rom[4] = card->guid;
+
+        /* Generate root directory. */
+        i = 5;
+        config_rom[i++] = 0;
+        config_rom[i++] = 0x0c0083c0; /* node capabilities */
+        j = i + descriptor_count;
+
+        /* Generate root directory entries for descriptors. */
+        list_for_each_entry (desc, &descriptor_list, link) {
+                if (desc->immediate > 0)
+                        config_rom[i++] = desc->immediate;
+                config_rom[i] = desc->key | (j - i);
+                i++;
+                j += desc->length;
+        }
+
+        /* Update root directory length. */
+        config_rom[5] = (i - 5 - 1) << 16;
+
+        /* End of root directory, now copy in descriptors. */
+        list_for_each_entry (desc, &descriptor_list, link) {
+                memcpy(&config_rom[i], desc->data, desc->length * 4);
+                i += desc->length;
+        }
+
+        /* Calculate CRCs for all blocks in the config rom.  This
+         * assumes that CRC length and info length are identical for
+         * the bus info block, which is always the case for this
+         * implementation. */
+        for (i = 0; i < j; i += length + 1)
+                length = fw_compute_block_crc(config_rom + i);
+
+        *config_rom_length = j;
+
+        return config_rom;
+}
+
+static void
+update_config_roms(void)
+{
+        struct fw_card *card;
+        u32 *config_rom;
+        size_t length;
+
+        list_for_each_entry (card, &card_list, link) {
+                config_rom = generate_config_rom(card, &length);
+                card->driver->set_config_rom(card, config_rom, length);
+        }
+}
+
+int
+fw_core_add_descriptor(struct fw_descriptor *desc)
+{
+        size_t i;
+
+        /*
+         * Check descriptor is valid; the length of all blocks in the
+         * descriptor has to add up to exactly the length of the
+         * block.
+         */
+        i = 0;
+        while (i < desc->length)
+                i += (desc->data[i] >> 16) + 1;
+
+        if (i != desc->length)
+                return -EINVAL;
+
+        mutex_lock(&card_mutex);
+
+        list_add_tail(&desc->link, &descriptor_list);
+        descriptor_count++;
+        if (desc->immediate > 0)
+                descriptor_count++;
+        update_config_roms();
+
+        mutex_unlock(&card_mutex);
+
+        return 0;
+}
+EXPORT_SYMBOL(fw_core_add_descriptor);
+
+void
+fw_core_remove_descriptor(struct fw_descriptor *desc)
+{
+        mutex_lock(&card_mutex);
+
+        list_del(&desc->link);
+        descriptor_count--;
+        if (desc->immediate > 0)
+                descriptor_count--;
+        update_config_roms();
+
+        mutex_unlock(&card_mutex);
+}
+EXPORT_SYMBOL(fw_core_remove_descriptor);
+
+static const char gap_count_table[] = {
+        63, 5, 7, 8, 10, 13, 16, 18, 21, 24, 26, 29, 32, 35, 37, 40
+};
+
+struct bm_data {
+        struct fw_transaction t;
+        struct {
+                __be32 arg;
+                __be32 data;
+        } lock;
+        u32 old;
+        int rcode;
+        struct completion done;
+};
+
+static void
+complete_bm_lock(struct fw_card *card, int rcode,
+                 void *payload, size_t length, void *data)
+{
+        struct bm_data *bmd = data;
+
+        if (rcode == RCODE_COMPLETE)
+                bmd->old = be32_to_cpu(*(__be32 *) payload);
+        bmd->rcode = rcode;
+        complete(&bmd->done);
+}
+
+static void
+fw_card_bm_work(struct work_struct *work)
+{
+        struct fw_card *card = container_of(work, struct fw_card, work.work);
+        struct fw_device *root;
+        struct bm_data bmd;
+        unsigned long flags;
+        int root_id, new_root_id, irm_id, gap_count, generation, grace;
+        int do_reset = 0;
+
+        spin_lock_irqsave(&card->lock, flags);
+
+        generation = card->generation;
+        root = card->root_node->data;
+        root_id = card->root_node->node_id;
+        grace = time_after(jiffies, card->reset_jiffies + DIV_ROUND_UP(HZ, 10));
+
+        if (card->bm_generation + 1 == generation ||
+            (card->bm_generation != generation && grace)) {
+                /*
+                 * This first step is to figure out who is IRM and
+                 * then try to become bus manager.  If the IRM is not
+                 * well defined (e.g. does not have an active link
+                 * layer or does not responds to our lock request, we
+                 * will have to do a little vigilante bus management.
+                 * In that case, we do a goto into the gap count logic
+                 * so that when we do the reset, we still optimize the
+                 * gap count.  That could well save a reset in the
+                 * next generation.
+                 */
+
+                irm_id = card->irm_node->node_id;
+                if (!card->irm_node->link_on) {
+                        new_root_id = card->local_node->node_id;
+                        fw_notify("IRM has link off, making local node (%02x) root.\n",
+                                  new_root_id);
+                        goto pick_me;
+                }
+
+                bmd.lock.arg = cpu_to_be32(0x3f);
+                bmd.lock.data = cpu_to_be32(card->local_node->node_id);
+
+                spin_unlock_irqrestore(&card->lock, flags);
+
+                init_completion(&bmd.done);
+                fw_send_request(card, &bmd.t, TCODE_LOCK_COMPARE_SWAP,
+                                irm_id, generation,
+                                SCODE_100, CSR_REGISTER_BASE + CSR_BUS_MANAGER_ID,
+                                &bmd.lock, sizeof(bmd.lock),
+                                complete_bm_lock, &bmd);
+                wait_for_completion(&bmd.done);
+
+                if (bmd.rcode == RCODE_GENERATION) {
+                        /*
+                         * Another bus reset happened. Just return,
+                         * the BM work has been rescheduled.
+                         */
+                        return;
+                }
+
+                if (bmd.rcode == RCODE_COMPLETE && bmd.old != 0x3f)
+                        /* Somebody else is BM, let them do the work. */
+                        return;
+
+                spin_lock_irqsave(&card->lock, flags);
+                if (bmd.rcode != RCODE_COMPLETE) {
+                        /*
+                         * The lock request failed, maybe the IRM
+                         * isn't really IRM capable after all. Let's
+                         * do a bus reset and pick the local node as
+                         * root, and thus, IRM.
+                         */
+                        new_root_id = card->local_node->node_id;
+                        fw_notify("BM lock failed, making local node (%02x) root.\n",
+                                  new_root_id);
+                        goto pick_me;
+                }
+        } else if (card->bm_generation != generation) {
+                /*
+                 * OK, we weren't BM in the last generation, and it's
+                 * less than 100ms since last bus reset. Reschedule
+                 * this task 100ms from now.
+                 */
+                spin_unlock_irqrestore(&card->lock, flags);
+                schedule_delayed_work(&card->work, DIV_ROUND_UP(HZ, 10));
+                return;
+        }
+
+        /*
+         * We're bus manager for this generation, so next step is to
+         * make sure we have an active cycle master and do gap count
+         * optimization.
+         */
+        card->bm_generation = generation;
+
+        if (root == NULL) {
+                /*
+                 * Either link_on is false, or we failed to read the
+                 * config rom.  In either case, pick another root.
+                 */
+                new_root_id = card->local_node->node_id;
+        } else if (atomic_read(&root->state) != FW_DEVICE_RUNNING) {
+                /*
+                 * If we haven't probed this device yet, bail out now
+                 * and let's try again once that's done.
+                 */
+                spin_unlock_irqrestore(&card->lock, flags);
+                return;
+        } else if (root->config_rom[2] & BIB_CMC) {
+                /*
+                 * FIXME: I suppose we should set the cmstr bit in the
+                 * STATE_CLEAR register of this node, as described in
+                 * 1394-1995, 8.4.2.6.  Also, send out a force root
+                 * packet for this node.
+                 */
+                new_root_id = root_id;
+        } else {
+                /*
+                 * Current root has an active link layer and we
+                 * successfully read the config rom, but it's not
+                 * cycle master capable.
+                 */
+                new_root_id = card->local_node->node_id;
+        }
+
+ pick_me:
+        /* Now figure out what gap count to set. */
+        if (card->topology_type == FW_TOPOLOGY_A &&
+            card->root_node->max_hops < ARRAY_SIZE(gap_count_table))
+                gap_count = gap_count_table[card->root_node->max_hops];
+        else
+                gap_count = 63;
+
+        /*
+         * Finally, figure out if we should do a reset or not.  If we've
+         * done less that 5 resets with the same physical topology and we
+         * have either a new root or a new gap count setting, let's do it.
+         */
+
+        if (card->bm_retries++ < 5 &&
+            (card->gap_count != gap_count || new_root_id != root_id))
+                do_reset = 1;
+
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        if (do_reset) {
+                fw_notify("phy config: card %d, new root=%x, gap_count=%d\n",
+                          card->index, new_root_id, gap_count);
+                fw_send_phy_config(card, new_root_id, generation, gap_count);
+                fw_core_initiate_bus_reset(card, 1);
+        }
+}
+
+static void
+flush_timer_callback(unsigned long data)
+{
+        struct fw_card *card = (struct fw_card *)data;
+
+        fw_flush_transactions(card);
+}
+
+void
+fw_card_initialize(struct fw_card *card, const struct fw_card_driver *driver,
+                   struct device *device)
+{
+        static atomic_t index = ATOMIC_INIT(-1);
+
+        kref_init(&card->kref);
+        card->index = atomic_inc_return(&index);
+        card->driver = driver;
+        card->device = device;
+        card->current_tlabel = 0;
+        card->tlabel_mask = 0;
+        card->color = 0;
+
+        INIT_LIST_HEAD(&card->transaction_list);
+        spin_lock_init(&card->lock);
+        setup_timer(&card->flush_timer,
+                    flush_timer_callback, (unsigned long)card);
+
+        card->local_node = NULL;
+
+        INIT_DELAYED_WORK(&card->work, fw_card_bm_work);
+}
+EXPORT_SYMBOL(fw_card_initialize);
+
+int
+fw_card_add(struct fw_card *card,
+            u32 max_receive, u32 link_speed, u64 guid)
+{
+        u32 *config_rom;
+        size_t length;
+
+        card->max_receive = max_receive;
+        card->link_speed = link_speed;
+        card->guid = guid;
+
+        /* Activate link_on bit and contender bit in our self ID packets.*/
+        if (card->driver->update_phy_reg(card, 4, 0,
+                                         PHY_LINK_ACTIVE | PHY_CONTENDER) < 0)
+                return -EIO;
+
+        /*
+         * The subsystem grabs a reference when the card is added and
+         * drops it when the driver calls fw_core_remove_card.
+         */
+        fw_card_get(card);
+
+        mutex_lock(&card_mutex);
+        config_rom = generate_config_rom(card, &length);
+        list_add_tail(&card->link, &card_list);
+        mutex_unlock(&card_mutex);
+
+        return card->driver->enable(card, config_rom, length);
+}
+EXPORT_SYMBOL(fw_card_add);
+
+
+/*
+ * The next few functions implements a dummy driver that use once a
+ * card driver shuts down an fw_card.  This allows the driver to
+ * cleanly unload, as all IO to the card will be handled by the dummy
+ * driver instead of calling into the (possibly) unloaded module.  The
+ * dummy driver just fails all IO.
+ */
+
+static int
+dummy_enable(struct fw_card *card, u32 *config_rom, size_t length)
+{
+        BUG();
+        return -1;
+}
+
+static int
+dummy_update_phy_reg(struct fw_card *card, int address,
+                     int clear_bits, int set_bits)
+{
+        return -ENODEV;
+}
+
+static int
+dummy_set_config_rom(struct fw_card *card,
+                     u32 *config_rom, size_t length)
+{
+        /*
+         * We take the card out of card_list before setting the dummy
+         * driver, so this should never get called.
+         */
+        BUG();
+        return -1;
+}
+
+static void
+dummy_send_request(struct fw_card *card, struct fw_packet *packet)
+{
+        packet->callback(packet, card, -ENODEV);
+}
+
+static void
+dummy_send_response(struct fw_card *card, struct fw_packet *packet)
+{
+        packet->callback(packet, card, -ENODEV);
+}
+
+static int
+dummy_cancel_packet(struct fw_card *card, struct fw_packet *packet)
+{
+        return -ENOENT;
+}
+
+static int
+dummy_enable_phys_dma(struct fw_card *card,
+                      int node_id, int generation)
+{
+        return -ENODEV;
+}
+
+static struct fw_card_driver dummy_driver = {
+        .name            = "dummy",
+        .enable          = dummy_enable,
+        .update_phy_reg  = dummy_update_phy_reg,
+        .set_config_rom  = dummy_set_config_rom,
+        .send_request    = dummy_send_request,
+        .cancel_packet   = dummy_cancel_packet,
+        .send_response   = dummy_send_response,
+        .enable_phys_dma = dummy_enable_phys_dma,
+};
+
+void
+fw_core_remove_card(struct fw_card *card)
+{
+        card->driver->update_phy_reg(card, 4,
+                                     PHY_LINK_ACTIVE | PHY_CONTENDER, 0);
+        fw_core_initiate_bus_reset(card, 1);
+
+        mutex_lock(&card_mutex);
+        list_del(&card->link);
+        mutex_unlock(&card_mutex);
+
+        /* Set up the dummy driver. */
+        card->driver = &dummy_driver;
+
+        fw_flush_transactions(card);
+
+        fw_destroy_nodes(card);
+
+        fw_card_put(card);
+}
+EXPORT_SYMBOL(fw_core_remove_card);
+
+struct fw_card *
+fw_card_get(struct fw_card *card)
+{
+        kref_get(&card->kref);
+
+        return card;
+}
+EXPORT_SYMBOL(fw_card_get);
+
+static void
+release_card(struct kref *kref)
+{
+        struct fw_card *card = container_of(kref, struct fw_card, kref);
+
+        kfree(card);
+}
+
+/*
+ * An assumption for fw_card_put() is that the card driver allocates
+ * the fw_card struct with kalloc and that it has been shut down
+ * before the last ref is dropped.
+ */
+void
+fw_card_put(struct fw_card *card)
+{
+        kref_put(&card->kref, release_card);
+}
+EXPORT_SYMBOL(fw_card_put);
+
+int
+fw_core_initiate_bus_reset(struct fw_card *card, int short_reset)
+{
+        int reg = short_reset ? 5 : 1;
+        int bit = short_reset ? PHY_BUS_SHORT_RESET : PHY_BUS_RESET;
+
+        return card->driver->update_phy_reg(card, reg, 0, bit);
+}
+EXPORT_SYMBOL(fw_core_initiate_bus_reset);
diff --git a/drivers/firewire/fw-cdev.c b/drivers/firewire/fw-cdev.c
new file mode 100644
index 000000000000..0fa5bd54c6a1
--- /dev/null
+++ b/drivers/firewire/fw-cdev.c
@@ -0,0 +1,961 @@
+/*
+ * Char device for device raw access
+ *
+ * Copyright (C) 2005-2007  Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/wait.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/vmalloc.h>
+#include <linux/poll.h>
+#include <linux/delay.h>
+#include <linux/mm.h>
+#include <linux/idr.h>
+#include <linux/compat.h>
+#include <linux/firewire-cdev.h>
+#include <asm/uaccess.h>
+#include "fw-transaction.h"
+#include "fw-topology.h"
+#include "fw-device.h"
+
+struct client;
+struct client_resource {
+        struct list_head link;
+        void (*release)(struct client *client, struct client_resource *r);
+        u32 handle;
+};
+
+/*
+ * dequeue_event() just kfree()'s the event, so the event has to be
+ * the first field in the struct.
+ */
+
+struct event {
+        struct { void *data; size_t size; } v[2];
+        struct list_head link;
+};
+
+struct bus_reset {
+        struct event event;
+        struct fw_cdev_event_bus_reset reset;
+};
+
+struct response {
+        struct event event;
+        struct fw_transaction transaction;
+        struct client *client;
+        struct client_resource resource;
+        struct fw_cdev_event_response response;
+};
+
+struct iso_interrupt {
+        struct event event;
+        struct fw_cdev_event_iso_interrupt interrupt;
+};
+
+struct client {
+        u32 version;
+        struct fw_device *device;
+        spinlock_t lock;
+        u32 resource_handle;
+        struct list_head resource_list;
+        struct list_head event_list;
+        wait_queue_head_t wait;
+        u64 bus_reset_closure;
+
+        struct fw_iso_context *iso_context;
+        u64 iso_closure;
+        struct fw_iso_buffer buffer;
+        unsigned long vm_start;
+
+        struct list_head link;
+};
+
+static inline void __user *
+u64_to_uptr(__u64 value)
+{
+        return (void __user *)(unsigned long)value;
+}
+
+static inline __u64
+uptr_to_u64(void __user *ptr)
+{
+        return (__u64)(unsigned long)ptr;
+}
+
+static int fw_device_op_open(struct inode *inode, struct file *file)
+{
+        struct fw_device *device;
+        struct client *client;
+        unsigned long flags;
+
+        device = fw_device_from_devt(inode->i_rdev);
+        if (device == NULL)
+                return -ENODEV;
+
+        client = kzalloc(sizeof(*client), GFP_KERNEL);
+        if (client == NULL)
+                return -ENOMEM;
+
+        client->device = fw_device_get(device);
+        INIT_LIST_HEAD(&client->event_list);
+        INIT_LIST_HEAD(&client->resource_list);
+        spin_lock_init(&client->lock);
+        init_waitqueue_head(&client->wait);
+
+        file->private_data = client;
+
+        spin_lock_irqsave(&device->card->lock, flags);
+        list_add_tail(&client->link, &device->client_list);
+        spin_unlock_irqrestore(&device->card->lock, flags);
+
+        return 0;
+}
+
+static void queue_event(struct client *client, struct event *event,
+                        void *data0, size_t size0, void *data1, size_t size1)
+{
+        unsigned long flags;
+
+        event->v[0].data = data0;
+        event->v[0].size = size0;
+        event->v[1].data = data1;
+        event->v[1].size = size1;
+
+        spin_lock_irqsave(&client->lock, flags);
+
+        list_add_tail(&event->link, &client->event_list);
+        wake_up_interruptible(&client->wait);
+
+        spin_unlock_irqrestore(&client->lock, flags);
+}
+
+static int
+dequeue_event(struct client *client, char __user *buffer, size_t count)
+{
+        unsigned long flags;
+        struct event *event;
+        size_t size, total;
+        int i, retval;
+
+        retval = wait_event_interruptible(client->wait,
+                                          !list_empty(&client->event_list) ||
+                                          fw_device_is_shutdown(client->device));
+        if (retval < 0)
+                return retval;
+
+        if (list_empty(&client->event_list) &&
+                       fw_device_is_shutdown(client->device))
+                return -ENODEV;
+
+        spin_lock_irqsave(&client->lock, flags);
+        event = container_of(client->event_list.next, struct event, link);
+        list_del(&event->link);
+        spin_unlock_irqrestore(&client->lock, flags);
+
+        total = 0;
+        for (i = 0; i < ARRAY_SIZE(event->v) && total < count; i++) {
+                size = min(event->v[i].size, count - total);
+                if (copy_to_user(buffer + total, event->v[i].data, size)) {
+                        retval = -EFAULT;
+                        goto out;
+                }
+                total += size;
+        }
+        retval = total;
+
+ out:
+        kfree(event);
+
+        return retval;
+}
+
+static ssize_t
+fw_device_op_read(struct file *file,
+                  char __user *buffer, size_t count, loff_t *offset)
+{
+        struct client *client = file->private_data;
+
+        return dequeue_event(client, buffer, count);
+}
+
+static void
+fill_bus_reset_event(struct fw_cdev_event_bus_reset *event,
+                     struct client *client)
+{
+        struct fw_card *card = client->device->card;
+
+        event->closure       = client->bus_reset_closure;
+        event->type          = FW_CDEV_EVENT_BUS_RESET;
+        event->node_id       = client->device->node_id;
+        event->local_node_id = card->local_node->node_id;
+        event->bm_node_id    = 0; /* FIXME: We don't track the BM. */
+        event->irm_node_id   = card->irm_node->node_id;
+        event->root_node_id  = card->root_node->node_id;
+        event->generation    = card->generation;
+}
+
+static void
+for_each_client(struct fw_device *device,
+                void (*callback)(struct client *client))
+{
+        struct fw_card *card = device->card;
+        struct client *c;
+        unsigned long flags;
+
+        spin_lock_irqsave(&card->lock, flags);
+
+        list_for_each_entry(c, &device->client_list, link)
+                callback(c);
+
+        spin_unlock_irqrestore(&card->lock, flags);
+}
+
+static void
+queue_bus_reset_event(struct client *client)
+{
+        struct bus_reset *bus_reset;
+
+        bus_reset = kzalloc(sizeof(*bus_reset), GFP_ATOMIC);
+        if (bus_reset == NULL) {
+                fw_notify("Out of memory when allocating bus reset event\n");
+                return;
+        }
+
+        fill_bus_reset_event(&bus_reset->reset, client);
+
+        queue_event(client, &bus_reset->event,
+                    &bus_reset->reset, sizeof(bus_reset->reset), NULL, 0);
+}
+
+void fw_device_cdev_update(struct fw_device *device)
+{
+        for_each_client(device, queue_bus_reset_event);
+}
+
+static void wake_up_client(struct client *client)
+{
+        wake_up_interruptible(&client->wait);
+}
+
+void fw_device_cdev_remove(struct fw_device *device)
+{
+        for_each_client(device, wake_up_client);
+}
+
+static int ioctl_get_info(struct client *client, void *buffer)
+{
+        struct fw_cdev_get_info *get_info = buffer;
+        struct fw_cdev_event_bus_reset bus_reset;
+
+        client->version = get_info->version;
+        get_info->version = FW_CDEV_VERSION;
+
+        if (get_info->rom != 0) {
+                void __user *uptr = u64_to_uptr(get_info->rom);
+                size_t want = get_info->rom_length;
+                size_t have = client->device->config_rom_length * 4;
+
+                if (copy_to_user(uptr, client->device->config_rom,
+                                 min(want, have)))
+                        return -EFAULT;
+        }
+        get_info->rom_length = client->device->config_rom_length * 4;
+
+        client->bus_reset_closure = get_info->bus_reset_closure;
+        if (get_info->bus_reset != 0) {
+                void __user *uptr = u64_to_uptr(get_info->bus_reset);
+
+                fill_bus_reset_event(&bus_reset, client);
+                if (copy_to_user(uptr, &bus_reset, sizeof(bus_reset)))
+                        return -EFAULT;
+        }
+
+        get_info->card = client->device->card->index;
+
+        return 0;
+}
+
+static void
+add_client_resource(struct client *client, struct client_resource *resource)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&client->lock, flags);
+        list_add_tail(&resource->link, &client->resource_list);
+        resource->handle = client->resource_handle++;
+        spin_unlock_irqrestore(&client->lock, flags);
+}
+
+static int
+release_client_resource(struct client *client, u32 handle,
+                        struct client_resource **resource)
+{
+        struct client_resource *r;
+        unsigned long flags;
+
+        spin_lock_irqsave(&client->lock, flags);
+        list_for_each_entry(r, &client->resource_list, link) {
+                if (r->handle == handle) {
+                        list_del(&r->link);
+                        break;
+                }
+        }
+        spin_unlock_irqrestore(&client->lock, flags);
+
+        if (&r->link == &client->resource_list)
+                return -EINVAL;
+
+        if (resource)
+                *resource = r;
+        else
+                r->release(client, r);
+
+        return 0;
+}
+
+static void
+release_transaction(struct client *client, struct client_resource *resource)
+{
+        struct response *response =
+                container_of(resource, struct response, resource);
+
+        fw_cancel_transaction(client->device->card, &response->transaction);
+}
+
+static void
+complete_transaction(struct fw_card *card, int rcode,
+                     void *payload, size_t length, void *data)
+{
+        struct response *response = data;
+        struct client *client = response->client;
+        unsigned long flags;
+
+        if (length < response->response.length)
+                response->response.length = length;
+        if (rcode == RCODE_COMPLETE)
+                memcpy(response->response.data, payload,
+                       response->response.length);
+
+        spin_lock_irqsave(&client->lock, flags);
+        list_del(&response->resource.link);
+        spin_unlock_irqrestore(&client->lock, flags);
+
+        response->response.type   = FW_CDEV_EVENT_RESPONSE;
+        response->response.rcode  = rcode;
+        queue_event(client, &response->event,
+                    &response->response, sizeof(response->response),
+                    response->response.data, response->response.length);
+}
+
+static ssize_t ioctl_send_request(struct client *client, void *buffer)
+{
+        struct fw_device *device = client->device;
+        struct fw_cdev_send_request *request = buffer;
+        struct response *response;
+
+        /* What is the biggest size we'll accept, really? */
+        if (request->length > 4096)
+                return -EINVAL;
+
+        response = kmalloc(sizeof(*response) + request->length, GFP_KERNEL);
+        if (response == NULL)
+                return -ENOMEM;
+
+        response->client = client;
+        response->response.length = request->length;
+        response->response.closure = request->closure;
+
+        if (request->data &&
+            copy_from_user(response->response.data,
+                           u64_to_uptr(request->data), request->length)) {
+                kfree(response);
+                return -EFAULT;
+        }
+
+        response->resource.release = release_transaction;
+        add_client_resource(client, &response->resource);
+
+        fw_send_request(device->card, &response->transaction,
+                        request->tcode & 0x1f,
+                        device->node->node_id,
+                        request->generation,
+                        device->node->max_speed,
+                        request->offset,
+                        response->response.data, request->length,
+                        complete_transaction, response);
+
+        if (request->data)
+                return sizeof(request) + request->length;
+        else
+                return sizeof(request);
+}
+
+struct address_handler {
+        struct fw_address_handler handler;
+        __u64 closure;
+        struct client *client;
+        struct client_resource resource;
+};
+
+struct request {
+        struct fw_request *request;
+        void *data;
+        size_t length;
+        struct client_resource resource;
+};
+
+struct request_event {
+        struct event event;
+        struct fw_cdev_event_request request;
+};
+
+static void
+release_request(struct client *client, struct client_resource *resource)
+{
+        struct request *request =
+                container_of(resource, struct request, resource);
+
+        fw_send_response(client->device->card, request->request,
+                         RCODE_CONFLICT_ERROR);
+        kfree(request);
+}
+
+static void
+handle_request(struct fw_card *card, struct fw_request *r,
+               int tcode, int destination, int source,
+               int generation, int speed,
+               unsigned long long offset,
+               void *payload, size_t length, void *callback_data)
+{
+        struct address_handler *handler = callback_data;
+        struct request *request;
+        struct request_event *e;
+        struct client *client = handler->client;
+
+        request = kmalloc(sizeof(*request), GFP_ATOMIC);
+        e = kmalloc(sizeof(*e), GFP_ATOMIC);
+        if (request == NULL || e == NULL) {
+                kfree(request);
+                kfree(e);
+                fw_send_response(card, r, RCODE_CONFLICT_ERROR);
+                return;
+        }
+
+        request->request = r;
+        request->data    = payload;
+        request->length  = length;
+
+        request->resource.release = release_request;
+        add_client_resource(client, &request->resource);
+
+        e->request.type    = FW_CDEV_EVENT_REQUEST;
+        e->request.tcode   = tcode;
+        e->request.offset  = offset;
+        e->request.length  = length;
+        e->request.handle  = request->resource.handle;
+        e->request.closure = handler->closure;
+
+        queue_event(client, &e->event,
+                    &e->request, sizeof(e->request), payload, length);
+}
+
+static void
+release_address_handler(struct client *client,
+                        struct client_resource *resource)
+{
+        struct address_handler *handler =
+                container_of(resource, struct address_handler, resource);
+
+        fw_core_remove_address_handler(&handler->handler);
+        kfree(handler);
+}
+
+static int ioctl_allocate(struct client *client, void *buffer)
+{
+        struct fw_cdev_allocate *request = buffer;
+        struct address_handler *handler;
+        struct fw_address_region region;
+
+        handler = kmalloc(sizeof(*handler), GFP_KERNEL);
+        if (handler == NULL)
+                return -ENOMEM;
+
+        region.start = request->offset;
+        region.end = request->offset + request->length;
+        handler->handler.length = request->length;
+        handler->handler.address_callback = handle_request;
+        handler->handler.callback_data = handler;
+        handler->closure = request->closure;
+        handler->client = client;
+
+        if (fw_core_add_address_handler(&handler->handler, &region) < 0) {
+                kfree(handler);
+                return -EBUSY;
+        }
+
+        handler->resource.release = release_address_handler;
+        add_client_resource(client, &handler->resource);
+        request->handle = handler->resource.handle;
+
+        return 0;
+}
+
+static int ioctl_deallocate(struct client *client, void *buffer)
+{
+        struct fw_cdev_deallocate *request = buffer;
+
+        return release_client_resource(client, request->handle, NULL);
+}
+
+static int ioctl_send_response(struct client *client, void *buffer)
+{
+        struct fw_cdev_send_response *request = buffer;
+        struct client_resource *resource;
+        struct request *r;
+
+        if (release_client_resource(client, request->handle, &resource) < 0)
+                return -EINVAL;
+        r = container_of(resource, struct request, resource);
+        if (request->length < r->length)
+                r->length = request->length;
+        if (copy_from_user(r->data, u64_to_uptr(request->data), r->length))
+                return -EFAULT;
+
+        fw_send_response(client->device->card, r->request, request->rcode);
+        kfree(r);
+
+        return 0;
+}
+
+static int ioctl_initiate_bus_reset(struct client *client, void *buffer)
+{
+        struct fw_cdev_initiate_bus_reset *request = buffer;
+        int short_reset;
+
+        short_reset = (request->type == FW_CDEV_SHORT_RESET);
+
+        return fw_core_initiate_bus_reset(client->device->card, short_reset);
+}
+
+struct descriptor {
+        struct fw_descriptor d;
+        struct client_resource resource;
+        u32 data[0];
+};
+
+static void release_descriptor(struct client *client,
+                               struct client_resource *resource)
+{
+        struct descriptor *descriptor =
+                container_of(resource, struct descriptor, resource);
+
+        fw_core_remove_descriptor(&descriptor->d);
+        kfree(descriptor);
+}
+
+static int ioctl_add_descriptor(struct client *client, void *buffer)
+{
+        struct fw_cdev_add_descriptor *request = buffer;
+        struct descriptor *descriptor;
+        int retval;
+
+        if (request->length > 256)
+                return -EINVAL;
+
+        descriptor =
+                kmalloc(sizeof(*descriptor) + request->length * 4, GFP_KERNEL);
+        if (descriptor == NULL)
+                return -ENOMEM;
+
+        if (copy_from_user(descriptor->data,
+                           u64_to_uptr(request->data), request->length * 4)) {
+                kfree(descriptor);
+                return -EFAULT;
+        }
+
+        descriptor->d.length = request->length;
+        descriptor->d.immediate = request->immediate;
+        descriptor->d.key = request->key;
+        descriptor->d.data = descriptor->data;
+
+        retval = fw_core_add_descriptor(&descriptor->d);
+        if (retval < 0) {
+                kfree(descriptor);
+                return retval;
+        }
+
+        descriptor->resource.release = release_descriptor;
+        add_client_resource(client, &descriptor->resource);
+        request->handle = descriptor->resource.handle;
+
+        return 0;
+}
+
+static int ioctl_remove_descriptor(struct client *client, void *buffer)
+{
+        struct fw_cdev_remove_descriptor *request = buffer;
+
+        return release_client_resource(client, request->handle, NULL);
+}
+
+static void
+iso_callback(struct fw_iso_context *context, u32 cycle,
+             size_t header_length, void *header, void *data)
+{
+        struct client *client = data;
+        struct iso_interrupt *interrupt;
+
+        interrupt = kzalloc(sizeof(*interrupt) + header_length, GFP_ATOMIC);
+        if (interrupt == NULL)
+                return;
+
+        interrupt->interrupt.type      = FW_CDEV_EVENT_ISO_INTERRUPT;
+        interrupt->interrupt.closure   = client->iso_closure;
+        interrupt->interrupt.cycle     = cycle;
+        interrupt->interrupt.header_length = header_length;
+        memcpy(interrupt->interrupt.header, header, header_length);
+        queue_event(client, &interrupt->event,
+                    &interrupt->interrupt,
+                    sizeof(interrupt->interrupt) + header_length, NULL, 0);
+}
+
+static int ioctl_create_iso_context(struct client *client, void *buffer)
+{
+        struct fw_cdev_create_iso_context *request = buffer;
+
+        if (request->channel > 63)
+                return -EINVAL;
+
+        switch (request->type) {
+        case FW_ISO_CONTEXT_RECEIVE:
+                if (request->header_size < 4 || (request->header_size & 3))
+                        return -EINVAL;
+
+                break;
+
+        case FW_ISO_CONTEXT_TRANSMIT:
+                if (request->speed > SCODE_3200)
+                        return -EINVAL;
+
+                break;
+
+        default:
+                return -EINVAL;
+        }
+
+        client->iso_closure = request->closure;
+        client->iso_context = fw_iso_context_create(client->device->card,
+                                                    request->type,
+                                                    request->channel,
+                                                    request->speed,
+                                                    request->header_size,
+                                                    iso_callback, client);
+        if (IS_ERR(client->iso_context))
+                return PTR_ERR(client->iso_context);
+
+        /* We only support one context at this time. */
+        request->handle = 0;
+
+        return 0;
+}
+
+static int ioctl_queue_iso(struct client *client, void *buffer)
+{
+        struct fw_cdev_queue_iso *request = buffer;
+        struct fw_cdev_iso_packet __user *p, *end, *next;
+        struct fw_iso_context *ctx = client->iso_context;
+        unsigned long payload, buffer_end, header_length;
+        int count;
+        struct {
+                struct fw_iso_packet packet;
+                u8 header[256];
+        } u;
+
+        if (ctx == NULL || request->handle != 0)
+                return -EINVAL;
+
+        /*
+         * If the user passes a non-NULL data pointer, has mmap()'ed
+         * the iso buffer, and the pointer points inside the buffer,
+         * we setup the payload pointers accordingly.  Otherwise we
+         * set them both to 0, which will still let packets with
+         * payload_length == 0 through.  In other words, if no packets
+         * use the indirect payload, the iso buffer need not be mapped
+         * and the request->data pointer is ignored.
+         */
+
+        payload = (unsigned long)request->data - client->vm_start;
+        buffer_end = client->buffer.page_count << PAGE_SHIFT;
+        if (request->data == 0 || client->buffer.pages == NULL ||
+            payload >= buffer_end) {
+                payload = 0;
+                buffer_end = 0;
+        }
+
+        if (!access_ok(VERIFY_READ, request->packets, request->size))
+                return -EFAULT;
+
+        p = (struct fw_cdev_iso_packet __user *)u64_to_uptr(request->packets);
+        end = (void __user *)p + request->size;
+        count = 0;
+        while (p < end) {
+                if (__copy_from_user(&u.packet, p, sizeof(*p)))
+                        return -EFAULT;
+
+                if (ctx->type == FW_ISO_CONTEXT_TRANSMIT) {
+                        header_length = u.packet.header_length;
+                } else {
+                        /*
+                         * We require that header_length is a multiple of
+                         * the fixed header size, ctx->header_size.
+                         */
+                        if (ctx->header_size == 0) {
+                                if (u.packet.header_length > 0)
+                                        return -EINVAL;
+                        } else if (u.packet.header_length % ctx->header_size != 0) {
+                                return -EINVAL;
+                        }
+                        header_length = 0;
+                }
+
+                next = (struct fw_cdev_iso_packet __user *)
+                        &p->header[header_length / 4];
+                if (next > end)
+                        return -EINVAL;
+                if (__copy_from_user
+                    (u.packet.header, p->header, header_length))
+                        return -EFAULT;
+                if (u.packet.skip && ctx->type == FW_ISO_CONTEXT_TRANSMIT &&
+                    u.packet.header_length + u.packet.payload_length > 0)
+                        return -EINVAL;
+                if (payload + u.packet.payload_length > buffer_end)
+                        return -EINVAL;
+
+                if (fw_iso_context_queue(ctx, &u.packet,
+                                         &client->buffer, payload))
+                        break;
+
+                p = next;
+                payload += u.packet.payload_length;
+                count++;
+        }
+
+        request->size    -= uptr_to_u64(p) - request->packets;
+        request->packets  = uptr_to_u64(p);
+        request->data     = client->vm_start + payload;
+
+        return count;
+}
+
+static int ioctl_start_iso(struct client *client, void *buffer)
+{
+        struct fw_cdev_start_iso *request = buffer;
+
+        if (request->handle != 0)
+                return -EINVAL;
+        if (client->iso_context->type == FW_ISO_CONTEXT_RECEIVE) {
+                if (request->tags == 0 || request->tags > 15)
+                        return -EINVAL;
+
+                if (request->sync > 15)
+                        return -EINVAL;
+        }
+
+        return fw_iso_context_start(client->iso_context, request->cycle,
+                                    request->sync, request->tags);
+}
+
+static int ioctl_stop_iso(struct client *client, void *buffer)
+{
+        struct fw_cdev_stop_iso *request = buffer;
+
+        if (request->handle != 0)
+                return -EINVAL;
+
+        return fw_iso_context_stop(client->iso_context);
+}
+
+static int (* const ioctl_handlers[])(struct client *client, void *buffer) = {
+        ioctl_get_info,
+        ioctl_send_request,
+        ioctl_allocate,
+        ioctl_deallocate,
+        ioctl_send_response,
+        ioctl_initiate_bus_reset,
+        ioctl_add_descriptor,
+        ioctl_remove_descriptor,
+        ioctl_create_iso_context,
+        ioctl_queue_iso,
+        ioctl_start_iso,
+        ioctl_stop_iso,
+};
+
+static int
+dispatch_ioctl(struct client *client, unsigned int cmd, void __user *arg)
+{
+        char buffer[256];
+        int retval;
+
+        if (_IOC_TYPE(cmd) != '#' ||
+            _IOC_NR(cmd) >= ARRAY_SIZE(ioctl_handlers))
+                return -EINVAL;
+
+        if (_IOC_DIR(cmd) & _IOC_WRITE) {
+                if (_IOC_SIZE(cmd) > sizeof(buffer) ||
+                    copy_from_user(buffer, arg, _IOC_SIZE(cmd)))
+                        return -EFAULT;
+        }
+
+        retval = ioctl_handlers[_IOC_NR(cmd)](client, buffer);
+        if (retval < 0)
+                return retval;
+
+        if (_IOC_DIR(cmd) & _IOC_READ) {
+                if (_IOC_SIZE(cmd) > sizeof(buffer) ||
+                    copy_to_user(arg, buffer, _IOC_SIZE(cmd)))
+                        return -EFAULT;
+        }
+
+        return 0;
+}
+
+static long
+fw_device_op_ioctl(struct file *file,
+                   unsigned int cmd, unsigned long arg)
+{
+        struct client *client = file->private_data;
+
+        return dispatch_ioctl(client, cmd, (void __user *) arg);
+}
+
+#ifdef CONFIG_COMPAT
+static long
+fw_device_op_compat_ioctl(struct file *file,
+                          unsigned int cmd, unsigned long arg)
+{
+        struct client *client = file->private_data;
+
+        return dispatch_ioctl(client, cmd, compat_ptr(arg));
+}
+#endif
+
+static int fw_device_op_mmap(struct file *file, struct vm_area_struct *vma)
+{
+        struct client *client = file->private_data;
+        enum dma_data_direction direction;
+        unsigned long size;
+        int page_count, retval;
+
+        /* FIXME: We could support multiple buffers, but we don't. */
+        if (client->buffer.pages != NULL)
+                return -EBUSY;
+
+        if (!(vma->vm_flags & VM_SHARED))
+                return -EINVAL;
+
+        if (vma->vm_start & ~PAGE_MASK)
+                return -EINVAL;
+
+        client->vm_start = vma->vm_start;
+        size = vma->vm_end - vma->vm_start;
+        page_count = size >> PAGE_SHIFT;
+        if (size & ~PAGE_MASK)
+                return -EINVAL;
+
+        if (vma->vm_flags & VM_WRITE)
+                direction = DMA_TO_DEVICE;
+        else
+                direction = DMA_FROM_DEVICE;
+
+        retval = fw_iso_buffer_init(&client->buffer, client->device->card,
+                                    page_count, direction);
+        if (retval < 0)
+                return retval;
+
+        retval = fw_iso_buffer_map(&client->buffer, vma);
+        if (retval < 0)
+                fw_iso_buffer_destroy(&client->buffer, client->device->card);
+
+        return retval;
+}
+
+static int fw_device_op_release(struct inode *inode, struct file *file)
+{
+        struct client *client = file->private_data;
+        struct event *e, *next_e;
+        struct client_resource *r, *next_r;
+        unsigned long flags;
+
+        if (client->buffer.pages)
+                fw_iso_buffer_destroy(&client->buffer, client->device->card);
+
+        if (client->iso_context)
+                fw_iso_context_destroy(client->iso_context);
+
+        list_for_each_entry_safe(r, next_r, &client->resource_list, link)
+                r->release(client, r);
+
+        /*
+         * FIXME: We should wait for the async tasklets to stop
+         * running before freeing the memory.
+         */
+
+        list_for_each_entry_safe(e, next_e, &client->event_list, link)
+                kfree(e);
+
+        spin_lock_irqsave(&client->device->card->lock, flags);
+        list_del(&client->link);
+        spin_unlock_irqrestore(&client->device->card->lock, flags);
+
+        fw_device_put(client->device);
+        kfree(client);
+
+        return 0;
+}
+
+static unsigned int fw_device_op_poll(struct file *file, poll_table * pt)
+{
+        struct client *client = file->private_data;
+        unsigned int mask = 0;
+
+        poll_wait(file, &client->wait, pt);
+
+        if (fw_device_is_shutdown(client->device))
+                mask |= POLLHUP | POLLERR;
+        if (!list_empty(&client->event_list))
+                mask |= POLLIN | POLLRDNORM;
+
+        return mask;
+}
+
+const struct file_operations fw_device_ops = {
+        .owner          = THIS_MODULE,
+        .open           = fw_device_op_open,
+        .read           = fw_device_op_read,
+        .unlocked_ioctl = fw_device_op_ioctl,
+        .poll           = fw_device_op_poll,
+        .release        = fw_device_op_release,
+        .mmap           = fw_device_op_mmap,
+
+#ifdef CONFIG_COMPAT
+        .compat_ioctl   = fw_device_op_compat_ioctl,
+#endif
+};
diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c
new file mode 100644
index 000000000000..c1ce465d9710
--- /dev/null
+++ b/drivers/firewire/fw-device.c
@@ -0,0 +1,813 @@
+/*
+ * Device probing and sysfs code.
+ *
+ * Copyright (C) 2005-2006  Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/wait.h>
+#include <linux/errno.h>
+#include <linux/kthread.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/idr.h>
+#include <linux/rwsem.h>
+#include <asm/semaphore.h>
+#include <linux/ctype.h>
+#include "fw-transaction.h"
+#include "fw-topology.h"
+#include "fw-device.h"
+
+void fw_csr_iterator_init(struct fw_csr_iterator *ci, u32 * p)
+{
+        ci->p = p + 1;
+        ci->end = ci->p + (p[0] >> 16);
+}
+EXPORT_SYMBOL(fw_csr_iterator_init);
+
+int fw_csr_iterator_next(struct fw_csr_iterator *ci, int *key, int *value)
+{
+        *key = *ci->p >> 24;
+        *value = *ci->p & 0xffffff;
+
+        return ci->p++ < ci->end;
+}
+EXPORT_SYMBOL(fw_csr_iterator_next);
+
+static int is_fw_unit(struct device *dev);
+
+static int match_unit_directory(u32 * directory, const struct fw_device_id *id)
+{
+        struct fw_csr_iterator ci;
+        int key, value, match;
+
+        match = 0;
+        fw_csr_iterator_init(&ci, directory);
+        while (fw_csr_iterator_next(&ci, &key, &value)) {
+                if (key == CSR_VENDOR && value == id->vendor)
+                        match |= FW_MATCH_VENDOR;
+                if (key == CSR_MODEL && value == id->model)
+                        match |= FW_MATCH_MODEL;
+                if (key == CSR_SPECIFIER_ID && value == id->specifier_id)
+                        match |= FW_MATCH_SPECIFIER_ID;
+                if (key == CSR_VERSION && value == id->version)
+                        match |= FW_MATCH_VERSION;
+        }
+
+        return (match & id->match_flags) == id->match_flags;
+}
+
+static int fw_unit_match(struct device *dev, struct device_driver *drv)
+{
+        struct fw_unit *unit = fw_unit(dev);
+        struct fw_driver *driver = fw_driver(drv);
+        int i;
+
+        /* We only allow binding to fw_units. */
+        if (!is_fw_unit(dev))
+                return 0;
+
+        for (i = 0; driver->id_table[i].match_flags != 0; i++) {
+                if (match_unit_directory(unit->directory, &driver->id_table[i]))
+                        return 1;
+        }
+
+        return 0;
+}
+
+static int get_modalias(struct fw_unit *unit, char *buffer, size_t buffer_size)
+{
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct fw_csr_iterator ci;
+
+        int key, value;
+        int vendor = 0;
+        int model = 0;
+        int specifier_id = 0;
+        int version = 0;
+
+        fw_csr_iterator_init(&ci, &device->config_rom[5]);
+        while (fw_csr_iterator_next(&ci, &key, &value)) {
+                switch (key) {
+                case CSR_VENDOR:
+                        vendor = value;
+                        break;
+                case CSR_MODEL:
+                        model = value;
+                        break;
+                }
+        }
+
+        fw_csr_iterator_init(&ci, unit->directory);
+        while (fw_csr_iterator_next(&ci, &key, &value)) {
+                switch (key) {
+                case CSR_SPECIFIER_ID:
+                        specifier_id = value;
+                        break;
+                case CSR_VERSION:
+                        version = value;
+                        break;
+                }
+        }
+
+        return snprintf(buffer, buffer_size,
+                        "ieee1394:ven%08Xmo%08Xsp%08Xver%08X",
+                        vendor, model, specifier_id, version);
+}
+
+static int
+fw_unit_uevent(struct device *dev, char **envp, int num_envp,
+               char *buffer, int buffer_size)
+{
+        struct fw_unit *unit = fw_unit(dev);
+        char modalias[64];
+        int length = 0;
+        int i = 0;
+
+        get_modalias(unit, modalias, sizeof(modalias));
+
+        if (add_uevent_var(envp, num_envp, &i,
+                           buffer, buffer_size, &length,
+                           "MODALIAS=%s", modalias))
+                return -ENOMEM;
+
+        envp[i] = NULL;
+
+        return 0;
+}
+
+struct bus_type fw_bus_type = {
+        .name = "firewire",
+        .match = fw_unit_match,
+};
+EXPORT_SYMBOL(fw_bus_type);
+
+struct fw_device *fw_device_get(struct fw_device *device)
+{
+        get_device(&device->device);
+
+        return device;
+}
+
+void fw_device_put(struct fw_device *device)
+{
+        put_device(&device->device);
+}
+
+static void fw_device_release(struct device *dev)
+{
+        struct fw_device *device = fw_device(dev);
+        unsigned long flags;
+
+        /*
+         * Take the card lock so we don't set this to NULL while a
+         * FW_NODE_UPDATED callback is being handled.
+         */
+        spin_lock_irqsave(&device->card->lock, flags);
+        device->node->data = NULL;
+        spin_unlock_irqrestore(&device->card->lock, flags);
+
+        fw_node_put(device->node);
+        fw_card_put(device->card);
+        kfree(device->config_rom);
+        kfree(device);
+}
+
+int fw_device_enable_phys_dma(struct fw_device *device)
+{
+        return device->card->driver->enable_phys_dma(device->card,
+                                                     device->node_id,
+                                                     device->generation);
+}
+EXPORT_SYMBOL(fw_device_enable_phys_dma);
+
+struct config_rom_attribute {
+        struct device_attribute attr;
+        u32 key;
+};
+
+static ssize_t
+show_immediate(struct device *dev, struct device_attribute *dattr, char *buf)
+{
+        struct config_rom_attribute *attr =
+                container_of(dattr, struct config_rom_attribute, attr);
+        struct fw_csr_iterator ci;
+        u32 *dir;
+        int key, value;
+
+        if (is_fw_unit(dev))
+                dir = fw_unit(dev)->directory;
+        else
+                dir = fw_device(dev)->config_rom + 5;
+
+        fw_csr_iterator_init(&ci, dir);
+        while (fw_csr_iterator_next(&ci, &key, &value))
+                if (attr->key == key)
+                        return snprintf(buf, buf ? PAGE_SIZE : 0,
+                                        "0x%06x\n", value);
+
+        return -ENOENT;
+}
+
+#define IMMEDIATE_ATTR(name, key)                               \
+        { __ATTR(name, S_IRUGO, show_immediate, NULL), key }
+
+static ssize_t
+show_text_leaf(struct device *dev, struct device_attribute *dattr, char *buf)
+{
+        struct config_rom_attribute *attr =
+                container_of(dattr, struct config_rom_attribute, attr);
+        struct fw_csr_iterator ci;
+        u32 *dir, *block = NULL, *p, *end;
+        int length, key, value, last_key = 0;
+        char *b;
+
+        if (is_fw_unit(dev))
+                dir = fw_unit(dev)->directory;
+        else
+                dir = fw_device(dev)->config_rom + 5;
+
+        fw_csr_iterator_init(&ci, dir);
+        while (fw_csr_iterator_next(&ci, &key, &value)) {
+                if (attr->key == last_key &&
+                    key == (CSR_DESCRIPTOR | CSR_LEAF))
+                        block = ci.p - 1 + value;
+                last_key = key;
+        }
+
+        if (block == NULL)
+                return -ENOENT;
+
+        length = min(block[0] >> 16, 256U);
+        if (length < 3)
+                return -ENOENT;
+
+        if (block[1] != 0 || block[2] != 0)
+                /* Unknown encoding. */
+                return -ENOENT;
+
+        if (buf == NULL)
+                return length * 4;
+
+        b = buf;
+        end = &block[length + 1];
+        for (p = &block[3]; p < end; p++, b += 4)
+                * (u32 *) b = (__force u32) __cpu_to_be32(*p);
+
+        /* Strip trailing whitespace and add newline. */
+        while (b--, (isspace(*b) || *b == '\0') && b > buf);
+        strcpy(b + 1, "\n");
+
+        return b + 2 - buf;
+}
+
+#define TEXT_LEAF_ATTR(name, key)                               \
+        { __ATTR(name, S_IRUGO, show_text_leaf, NULL), key }
+
+static struct config_rom_attribute config_rom_attributes[] = {
+        IMMEDIATE_ATTR(vendor, CSR_VENDOR),
+        IMMEDIATE_ATTR(hardware_version, CSR_HARDWARE_VERSION),
+        IMMEDIATE_ATTR(specifier_id, CSR_SPECIFIER_ID),
+        IMMEDIATE_ATTR(version, CSR_VERSION),
+        IMMEDIATE_ATTR(model, CSR_MODEL),
+        TEXT_LEAF_ATTR(vendor_name, CSR_VENDOR),
+        TEXT_LEAF_ATTR(model_name, CSR_MODEL),
+        TEXT_LEAF_ATTR(hardware_version_name, CSR_HARDWARE_VERSION),
+};
+
+static void
+init_fw_attribute_group(struct device *dev,
+                        struct device_attribute *attrs,
+                        struct fw_attribute_group *group)
+{
+        struct device_attribute *attr;
+        int i, j;
+
+        for (j = 0; attrs[j].attr.name != NULL; j++)
+                group->attrs[j] = &attrs[j].attr;
+
+        for (i = 0; i < ARRAY_SIZE(config_rom_attributes); i++) {
+                attr = &config_rom_attributes[i].attr;
+                if (attr->show(dev, attr, NULL) < 0)
+                        continue;
+                group->attrs[j++] = &attr->attr;
+        }
+
+        BUG_ON(j >= ARRAY_SIZE(group->attrs));
+        group->attrs[j++] = NULL;
+        group->groups[0] = &group->group;
+        group->groups[1] = NULL;
+        group->group.attrs = group->attrs;
+        dev->groups = group->groups;
+}
+
+static ssize_t
+modalias_show(struct device *dev,
+              struct device_attribute *attr, char *buf)
+{
+        struct fw_unit *unit = fw_unit(dev);
+        int length;
+
+        length = get_modalias(unit, buf, PAGE_SIZE);
+        strcpy(buf + length, "\n");
+
+        return length + 1;
+}
+
+static ssize_t
+rom_index_show(struct device *dev,
+               struct device_attribute *attr, char *buf)
+{
+        struct fw_device *device = fw_device(dev->parent);
+        struct fw_unit *unit = fw_unit(dev);
+
+        return snprintf(buf, PAGE_SIZE, "%d\n",
+                        (int)(unit->directory - device->config_rom));
+}
+
+static struct device_attribute fw_unit_attributes[] = {
+        __ATTR_RO(modalias),
+        __ATTR_RO(rom_index),
+        __ATTR_NULL,
+};
+
+static ssize_t
+config_rom_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+        struct fw_device *device = fw_device(dev);
+
+        memcpy(buf, device->config_rom, device->config_rom_length * 4);
+
+        return device->config_rom_length * 4;
+}
+
+static ssize_t
+guid_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+        struct fw_device *device = fw_device(dev);
+        u64 guid;
+
+        guid = ((u64)device->config_rom[3] << 32) | device->config_rom[4];
+
+        return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
+                        (unsigned long long)guid);
+}
+
+static struct device_attribute fw_device_attributes[] = {
+        __ATTR_RO(config_rom),
+        __ATTR_RO(guid),
+        __ATTR_NULL,
+};
+
+struct read_quadlet_callback_data {
+        struct completion done;
+        int rcode;
+        u32 data;
+};
+
+static void
+complete_transaction(struct fw_card *card, int rcode,
+                     void *payload, size_t length, void *data)
+{
+        struct read_quadlet_callback_data *callback_data = data;
+
+        if (rcode == RCODE_COMPLETE)
+                callback_data->data = be32_to_cpu(*(__be32 *)payload);
+        callback_data->rcode = rcode;
+        complete(&callback_data->done);
+}
+
+static int read_rom(struct fw_device *device, int index, u32 * data)
+{
+        struct read_quadlet_callback_data callback_data;
+        struct fw_transaction t;
+        u64 offset;
+
+        init_completion(&callback_data.done);
+
+        offset = 0xfffff0000400ULL + index * 4;
+        fw_send_request(device->card, &t, TCODE_READ_QUADLET_REQUEST,
+                        device->node_id,
+                        device->generation, SCODE_100,
+                        offset, NULL, 4, complete_transaction, &callback_data);
+
+        wait_for_completion(&callback_data.done);
+
+        *data = callback_data.data;
+
+        return callback_data.rcode;
+}
+
+static int read_bus_info_block(struct fw_device *device)
+{
+        static u32 rom[256];
+        u32 stack[16], sp, key;
+        int i, end, length;
+
+        /* First read the bus info block. */
+        for (i = 0; i < 5; i++) {
+                if (read_rom(device, i, &rom[i]) != RCODE_COMPLETE)
+                        return -1;
+                /*
+                 * As per IEEE1212 7.2, during power-up, devices can
+                 * reply with a 0 for the first quadlet of the config
+                 * rom to indicate that they are booting (for example,
+                 * if the firmware is on the disk of a external
+                 * harddisk).  In that case we just fail, and the
+                 * retry mechanism will try again later.
+                 */
+                if (i == 0 && rom[i] == 0)
+                        return -1;
+        }
+
+        /*
+         * Now parse the config rom.  The config rom is a recursive
+         * directory structure so we parse it using a stack of
+         * references to the blocks that make up the structure.  We
+         * push a reference to the root directory on the stack to
+         * start things off.
+         */
+        length = i;
+        sp = 0;
+        stack[sp++] = 0xc0000005;
+        while (sp > 0) {
+                /*
+                 * Pop the next block reference of the stack.  The
+                 * lower 24 bits is the offset into the config rom,
+                 * the upper 8 bits are the type of the reference the
+                 * block.
+                 */
+                key = stack[--sp];
+                i = key & 0xffffff;
+                if (i >= ARRAY_SIZE(rom))
+                        /*
+                         * The reference points outside the standard
+                         * config rom area, something's fishy.
+                         */
+                        return -1;
+
+                /* Read header quadlet for the block to get the length. */
+                if (read_rom(device, i, &rom[i]) != RCODE_COMPLETE)
+                        return -1;
+                end = i + (rom[i] >> 16) + 1;
+                i++;
+                if (end > ARRAY_SIZE(rom))
+                        /*
+                         * This block extends outside standard config
+                         * area (and the array we're reading it
+                         * into).  That's broken, so ignore this
+                         * device.
+                         */
+                        return -1;
+
+                /*
+                 * Now read in the block.  If this is a directory
+                 * block, check the entries as we read them to see if
+                 * it references another block, and push it in that case.
+                 */
+                while (i < end) {
+                        if (read_rom(device, i, &rom[i]) != RCODE_COMPLETE)
+                                return -1;
+                        if ((key >> 30) == 3 && (rom[i] >> 30) > 1 &&
+                            sp < ARRAY_SIZE(stack))
+                                stack[sp++] = i + rom[i];
+                        i++;
+                }
+                if (length < i)
+                        length = i;
+        }
+
+        device->config_rom = kmalloc(length * 4, GFP_KERNEL);
+        if (device->config_rom == NULL)
+                return -1;
+        memcpy(device->config_rom, rom, length * 4);
+        device->config_rom_length = length;
+
+        return 0;
+}
+
+static void fw_unit_release(struct device *dev)
+{
+        struct fw_unit *unit = fw_unit(dev);
+
+        kfree(unit);
+}
+
+static struct device_type fw_unit_type = {
+        .uevent         = fw_unit_uevent,
+        .release        = fw_unit_release,
+};
+
+static int is_fw_unit(struct device *dev)
+{
+        return dev->type == &fw_unit_type;
+}
+
+static void create_units(struct fw_device *device)
+{
+        struct fw_csr_iterator ci;
+        struct fw_unit *unit;
+        int key, value, i;
+
+        i = 0;
+        fw_csr_iterator_init(&ci, &device->config_rom[5]);
+        while (fw_csr_iterator_next(&ci, &key, &value)) {
+                if (key != (CSR_UNIT | CSR_DIRECTORY))
+                        continue;
+
+                /*
+                 * Get the address of the unit directory and try to
+                 * match the drivers id_tables against it.
+                 */
+                unit = kzalloc(sizeof(*unit), GFP_KERNEL);
+                if (unit == NULL) {
+                        fw_error("failed to allocate memory for unit\n");
+                        continue;
+                }
+
+                unit->directory = ci.p + value - 1;
+                unit->device.bus = &fw_bus_type;
+                unit->device.type = &fw_unit_type;
+                unit->device.parent = &device->device;
+                snprintf(unit->device.bus_id, sizeof(unit->device.bus_id),
+                         "%s.%d", device->device.bus_id, i++);
+
+                init_fw_attribute_group(&unit->device,
+                                        fw_unit_attributes,
+                                        &unit->attribute_group);
+                if (device_register(&unit->device) < 0)
+                        goto skip_unit;
+
+                continue;
+
+        skip_unit:
+                kfree(unit);
+        }
+}
+
+static int shutdown_unit(struct device *device, void *data)
+{
+        device_unregister(device);
+
+        return 0;
+}
+
+static DECLARE_RWSEM(idr_rwsem);
+static DEFINE_IDR(fw_device_idr);
+int fw_cdev_major;
+
+struct fw_device *fw_device_from_devt(dev_t devt)
+{
+        struct fw_device *device;
+
+        down_read(&idr_rwsem);
+        device = idr_find(&fw_device_idr, MINOR(devt));
+        up_read(&idr_rwsem);
+
+        return device;
+}
+
+static void fw_device_shutdown(struct work_struct *work)
+{
+        struct fw_device *device =
+                container_of(work, struct fw_device, work.work);
+        int minor = MINOR(device->device.devt);
+
+        down_write(&idr_rwsem);
+        idr_remove(&fw_device_idr, minor);
+        up_write(&idr_rwsem);
+
+        fw_device_cdev_remove(device);
+        device_for_each_child(&device->device, NULL, shutdown_unit);
+        device_unregister(&device->device);
+}
+
+static struct device_type fw_device_type = {
+        .release        = fw_device_release,
+};
+
+/*
+ * These defines control the retry behavior for reading the config
+ * rom.  It shouldn't be necessary to tweak these; if the device
+ * doesn't respond to a config rom read within 10 seconds, it's not
+ * going to respond at all.  As for the initial delay, a lot of
+ * devices will be able to respond within half a second after bus
+ * reset.  On the other hand, it's not really worth being more
+ * aggressive than that, since it scales pretty well; if 10 devices
+ * are plugged in, they're all getting read within one second.
+ */
+
+#define MAX_RETRIES     10
+#define RETRY_DELAY     (3 * HZ)
+#define INITIAL_DELAY   (HZ / 2)
+
+static void fw_device_init(struct work_struct *work)
+{
+        struct fw_device *device =
+                container_of(work, struct fw_device, work.work);
+        int minor, err;
+
+        /*
+         * All failure paths here set node->data to NULL, so that we
+         * don't try to do device_for_each_child() on a kfree()'d
+         * device.
+         */
+
+        if (read_bus_info_block(device) < 0) {
+                if (device->config_rom_retries < MAX_RETRIES) {
+                        device->config_rom_retries++;
+                        schedule_delayed_work(&device->work, RETRY_DELAY);
+                } else {
+                        fw_notify("giving up on config rom for node id %x\n",
+                                  device->node_id);
+                        if (device->node == device->card->root_node)
+                                schedule_delayed_work(&device->card->work, 0);
+                        fw_device_release(&device->device);
+                }
+                return;
+        }
+
+        err = -ENOMEM;
+        down_write(&idr_rwsem);
+        if (idr_pre_get(&fw_device_idr, GFP_KERNEL))
+                err = idr_get_new(&fw_device_idr, device, &minor);
+        up_write(&idr_rwsem);
+        if (err < 0)
+                goto error;
+
+        device->device.bus = &fw_bus_type;
+        device->device.type = &fw_device_type;
+        device->device.parent = device->card->device;
+        device->device.devt = MKDEV(fw_cdev_major, minor);
+        snprintf(device->device.bus_id, sizeof(device->device.bus_id),
+                 "fw%d", minor);
+
+        init_fw_attribute_group(&device->device,
+                                fw_device_attributes,
+                                &device->attribute_group);
+        if (device_add(&device->device)) {
+                fw_error("Failed to add device.\n");
+                goto error_with_cdev;
+        }
+
+        create_units(device);
+
+        /*
+         * Transition the device to running state.  If it got pulled
+         * out from under us while we did the intialization work, we
+         * have to shut down the device again here.  Normally, though,
+         * fw_node_event will be responsible for shutting it down when
+         * necessary.  We have to use the atomic cmpxchg here to avoid
+         * racing with the FW_NODE_DESTROYED case in
+         * fw_node_event().
+         */
+        if (atomic_cmpxchg(&device->state,
+                    FW_DEVICE_INITIALIZING,
+                    FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN)
+                fw_device_shutdown(&device->work.work);
+        else
+                fw_notify("created new fw device %s (%d config rom retries)\n",
+                          device->device.bus_id, device->config_rom_retries);
+
+        /*
+         * Reschedule the IRM work if we just finished reading the
+         * root node config rom.  If this races with a bus reset we
+         * just end up running the IRM work a couple of extra times -
+         * pretty harmless.
+         */
+        if (device->node == device->card->root_node)
+                schedule_delayed_work(&device->card->work, 0);
+
+        return;
+
+ error_with_cdev:
+        down_write(&idr_rwsem);
+        idr_remove(&fw_device_idr, minor);
+        up_write(&idr_rwsem);
+ error:
+        put_device(&device->device);
+}
+
+static int update_unit(struct device *dev, void *data)
+{
+        struct fw_unit *unit = fw_unit(dev);
+        struct fw_driver *driver = (struct fw_driver *)dev->driver;
+
+        if (is_fw_unit(dev) && driver != NULL && driver->update != NULL) {
+                down(&dev->sem);
+                driver->update(unit);
+                up(&dev->sem);
+        }
+
+        return 0;
+}
+
+static void fw_device_update(struct work_struct *work)
+{
+        struct fw_device *device =
+                container_of(work, struct fw_device, work.work);
+
+        fw_device_cdev_update(device);
+        device_for_each_child(&device->device, NULL, update_unit);
+}
+
+void fw_node_event(struct fw_card *card, struct fw_node *node, int event)
+{
+        struct fw_device *device;
+
+        switch (event) {
+        case FW_NODE_CREATED:
+        case FW_NODE_LINK_ON:
+                if (!node->link_on)
+                        break;
+
+                device = kzalloc(sizeof(*device), GFP_ATOMIC);
+                if (device == NULL)
+                        break;
+
+                /*
+                 * Do minimal intialization of the device here, the
+                 * rest will happen in fw_device_init().  We need the
+                 * card and node so we can read the config rom and we
+                 * need to do device_initialize() now so
+                 * device_for_each_child() in FW_NODE_UPDATED is
+                 * doesn't freak out.
+                 */
+                device_initialize(&device->device);
+                atomic_set(&device->state, FW_DEVICE_INITIALIZING);
+                device->card = fw_card_get(card);
+                device->node = fw_node_get(node);
+                device->node_id = node->node_id;
+                device->generation = card->generation;
+                INIT_LIST_HEAD(&device->client_list);
+
+                /*
+                 * Set the node data to point back to this device so
+                 * FW_NODE_UPDATED callbacks can update the node_id
+                 * and generation for the device.
+                 */
+                node->data = device;
+
+                /*
+                 * Many devices are slow to respond after bus resets,
+                 * especially if they are bus powered and go through
+                 * power-up after getting plugged in.  We schedule the
+                 * first config rom scan half a second after bus reset.
+                 */
+                INIT_DELAYED_WORK(&device->work, fw_device_init);
+                schedule_delayed_work(&device->work, INITIAL_DELAY);
+                break;
+
+        case FW_NODE_UPDATED:
+                if (!node->link_on || node->data == NULL)
+                        break;
+
+                device = node->data;
+                device->node_id = node->node_id;
+                device->generation = card->generation;
+                if (atomic_read(&device->state) == FW_DEVICE_RUNNING) {
+                        PREPARE_DELAYED_WORK(&device->work, fw_device_update);
+                        schedule_delayed_work(&device->work, 0);
+                }
+                break;
+
+        case FW_NODE_DESTROYED:
+        case FW_NODE_LINK_OFF:
+                if (!node->data)
+                        break;
+
+                /*
+                 * Destroy the device associated with the node.  There
+                 * are two cases here: either the device is fully
+                 * initialized (FW_DEVICE_RUNNING) or we're in the
+                 * process of reading its config rom
+                 * (FW_DEVICE_INITIALIZING).  If it is fully
+                 * initialized we can reuse device->work to schedule a
+                 * full fw_device_shutdown().  If not, there's work
+                 * scheduled to read it's config rom, and we just put
+                 * the device in shutdown state to have that code fail
+                 * to create the device.
+                 */
+                device = node->data;
+                if (atomic_xchg(&device->state,
+                                FW_DEVICE_SHUTDOWN) == FW_DEVICE_RUNNING) {
+                        PREPARE_DELAYED_WORK(&device->work, fw_device_shutdown);
+                        schedule_delayed_work(&device->work, 0);
+                }
+                break;
+        }
+}
diff --git a/drivers/firewire/fw-device.h b/drivers/firewire/fw-device.h
new file mode 100644
index 000000000000..0ba9d64ccf4c
--- /dev/null
+++ b/drivers/firewire/fw-device.h
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2005-2006  Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __fw_device_h
+#define __fw_device_h
+
+#include <linux/fs.h>
+#include <linux/cdev.h>
+#include <asm/atomic.h>
+
+enum fw_device_state {
+        FW_DEVICE_INITIALIZING,
+        FW_DEVICE_RUNNING,
+        FW_DEVICE_SHUTDOWN,
+};
+
+struct fw_attribute_group {
+        struct attribute_group *groups[2];
+        struct attribute_group group;
+        struct attribute *attrs[11];
+};
+
+struct fw_device {
+        atomic_t state;
+        struct fw_node *node;
+        int node_id;
+        int generation;
+        struct fw_card *card;
+        struct device device;
+        struct list_head link;
+        struct list_head client_list;
+        u32 *config_rom;
+        size_t config_rom_length;
+        int config_rom_retries;
+        struct delayed_work work;
+        struct fw_attribute_group attribute_group;
+};
+
+static inline struct fw_device *
+fw_device(struct device *dev)
+{
+        return container_of(dev, struct fw_device, device);
+}
+
+static inline int
+fw_device_is_shutdown(struct fw_device *device)
+{
+        return atomic_read(&device->state) == FW_DEVICE_SHUTDOWN;
+}
+
+struct fw_device *fw_device_get(struct fw_device *device);
+void fw_device_put(struct fw_device *device);
+int fw_device_enable_phys_dma(struct fw_device *device);
+
+void fw_device_cdev_update(struct fw_device *device);
+void fw_device_cdev_remove(struct fw_device *device);
+
+struct fw_device *fw_device_from_devt(dev_t devt);
+extern int fw_cdev_major;
+
+struct fw_unit {
+        struct device device;
+        u32 *directory;
+        struct fw_attribute_group attribute_group;
+};
+
+static inline struct fw_unit *
+fw_unit(struct device *dev)
+{
+        return container_of(dev, struct fw_unit, device);
+}
+
+#define CSR_OFFSET      0x40
+#define CSR_LEAF        0x80
+#define CSR_DIRECTORY   0xc0
+
+#define CSR_DESCRIPTOR          0x01
+#define CSR_VENDOR              0x03
+#define CSR_HARDWARE_VERSION    0x04
+#define CSR_NODE_CAPABILITIES   0x0c
+#define CSR_UNIT                0x11
+#define CSR_SPECIFIER_ID        0x12
+#define CSR_VERSION             0x13
+#define CSR_DEPENDENT_INFO      0x14
+#define CSR_MODEL               0x17
+#define CSR_INSTANCE            0x18
+
+#define SBP2_COMMAND_SET_SPECIFIER      0x38
+#define SBP2_COMMAND_SET                0x39
+#define SBP2_COMMAND_SET_REVISION       0x3b
+#define SBP2_FIRMWARE_REVISION          0x3c
+
+struct fw_csr_iterator {
+        u32 *p;
+        u32 *end;
+};
+
+void fw_csr_iterator_init(struct fw_csr_iterator *ci, u32 *p);
+int fw_csr_iterator_next(struct fw_csr_iterator *ci,
+                         int *key, int *value);
+
+#define FW_MATCH_VENDOR         0x0001
+#define FW_MATCH_MODEL          0x0002
+#define FW_MATCH_SPECIFIER_ID   0x0004
+#define FW_MATCH_VERSION        0x0008
+
+struct fw_device_id {
+        u32 match_flags;
+        u32 vendor;
+        u32 model;
+        u32 specifier_id;
+        u32 version;
+        void *driver_data;
+};
+
+struct fw_driver {
+        struct device_driver driver;
+        /* Called when the parent device sits through a bus reset. */
+        void (*update) (struct fw_unit *unit);
+        const struct fw_device_id *id_table;
+};
+
+static inline struct fw_driver *
+fw_driver(struct device_driver *drv)
+{
+        return container_of(drv, struct fw_driver, driver);
+}
+
+extern const struct file_operations fw_device_ops;
+
+#endif /* __fw_device_h */
diff --git a/drivers/firewire/fw-iso.c b/drivers/firewire/fw-iso.c
new file mode 100644
index 000000000000..2b640e9be6de
--- /dev/null
+++ b/drivers/firewire/fw-iso.c
@@ -0,0 +1,163 @@
+/*
+ * Isochronous IO functionality
+ *
+ * Copyright (C) 2006 Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
+
+#include "fw-transaction.h"
+#include "fw-topology.h"
+#include "fw-device.h"
+
+int
+fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card,
+                   int page_count, enum dma_data_direction direction)
+{
+        int i, j, retval = -ENOMEM;
+        dma_addr_t address;
+
+        buffer->page_count = page_count;
+        buffer->direction = direction;
+
+        buffer->pages = kmalloc(page_count * sizeof(buffer->pages[0]),
+                                GFP_KERNEL);
+        if (buffer->pages == NULL)
+                goto out;
+
+        for (i = 0; i < buffer->page_count; i++) {
+                buffer->pages[i] = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
+                if (buffer->pages[i] == NULL)
+                        goto out_pages;
+
+                address = dma_map_page(card->device, buffer->pages[i],
+                                       0, PAGE_SIZE, direction);
+                if (dma_mapping_error(address)) {
+                        __free_page(buffer->pages[i]);
+                        goto out_pages;
+                }
+                set_page_private(buffer->pages[i], address);
+        }
+
+        return 0;
+
+ out_pages:
+        for (j = 0; j < i; j++) {
+                address = page_private(buffer->pages[j]);
+                dma_unmap_page(card->device, address,
+                               PAGE_SIZE, DMA_TO_DEVICE);
+                __free_page(buffer->pages[j]);
+        }
+        kfree(buffer->pages);
+ out:
+        buffer->pages = NULL;
+        return retval;
+}
+
+int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma)
+{
+        unsigned long uaddr;
+        int i, retval;
+
+        uaddr = vma->vm_start;
+        for (i = 0; i < buffer->page_count; i++) {
+                retval = vm_insert_page(vma, uaddr, buffer->pages[i]);
+                if (retval)
+                        return retval;
+                uaddr += PAGE_SIZE;
+        }
+
+        return 0;
+}
+
+void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer,
+                           struct fw_card *card)
+{
+        int i;
+        dma_addr_t address;
+
+        for (i = 0; i < buffer->page_count; i++) {
+                address = page_private(buffer->pages[i]);
+                dma_unmap_page(card->device, address,
+                               PAGE_SIZE, DMA_TO_DEVICE);
+                __free_page(buffer->pages[i]);
+        }
+
+        kfree(buffer->pages);
+        buffer->pages = NULL;
+}
+
+struct fw_iso_context *
+fw_iso_context_create(struct fw_card *card, int type,
+                      int channel, int speed, size_t header_size,
+                      fw_iso_callback_t callback, void *callback_data)
+{
+        struct fw_iso_context *ctx;
+
+        ctx = card->driver->allocate_iso_context(card, type, header_size);
+        if (IS_ERR(ctx))
+                return ctx;
+
+        ctx->card = card;
+        ctx->type = type;
+        ctx->channel = channel;
+        ctx->speed = speed;
+        ctx->header_size = header_size;
+        ctx->callback = callback;
+        ctx->callback_data = callback_data;
+
+        return ctx;
+}
+EXPORT_SYMBOL(fw_iso_context_create);
+
+void fw_iso_context_destroy(struct fw_iso_context *ctx)
+{
+        struct fw_card *card = ctx->card;
+
+        card->driver->free_iso_context(ctx);
+}
+EXPORT_SYMBOL(fw_iso_context_destroy);
+
+int
+fw_iso_context_start(struct fw_iso_context *ctx, int cycle, int sync, int tags)
+{
+        return ctx->card->driver->start_iso(ctx, cycle, sync, tags);
+}
+EXPORT_SYMBOL(fw_iso_context_start);
+
+int
+fw_iso_context_queue(struct fw_iso_context *ctx,
+                     struct fw_iso_packet *packet,
+                     struct fw_iso_buffer *buffer,
+                     unsigned long payload)
+{
+        struct fw_card *card = ctx->card;
+
+        return card->driver->queue_iso(ctx, packet, buffer, payload);
+}
+EXPORT_SYMBOL(fw_iso_context_queue);
+
+int
+fw_iso_context_stop(struct fw_iso_context *ctx)
+{
+        return ctx->card->driver->stop_iso(ctx);
+}
+EXPORT_SYMBOL(fw_iso_context_stop);
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
new file mode 100644
index 000000000000..1f5c70461b8b
--- /dev/null
+++ b/drivers/firewire/fw-ohci.c
@@ -0,0 +1,1943 @@
+/*
+ * Driver for OHCI 1394 controllers
+ *
+ * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/poll.h>
+#include <linux/dma-mapping.h>
+
+#include <asm/uaccess.h>
+#include <asm/semaphore.h>
+
+#include "fw-transaction.h"
+#include "fw-ohci.h"
+
+#define DESCRIPTOR_OUTPUT_MORE          0
+#define DESCRIPTOR_OUTPUT_LAST          (1 << 12)
+#define DESCRIPTOR_INPUT_MORE           (2 << 12)
+#define DESCRIPTOR_INPUT_LAST           (3 << 12)
+#define DESCRIPTOR_STATUS               (1 << 11)
+#define DESCRIPTOR_KEY_IMMEDIATE        (2 << 8)
+#define DESCRIPTOR_PING                 (1 << 7)
+#define DESCRIPTOR_YY                   (1 << 6)
+#define DESCRIPTOR_NO_IRQ               (0 << 4)
+#define DESCRIPTOR_IRQ_ERROR            (1 << 4)
+#define DESCRIPTOR_IRQ_ALWAYS           (3 << 4)
+#define DESCRIPTOR_BRANCH_ALWAYS        (3 << 2)
+#define DESCRIPTOR_WAIT                 (3 << 0)
+
+struct descriptor {
+        __le16 req_count;
+        __le16 control;
+        __le32 data_address;
+        __le32 branch_address;
+        __le16 res_count;
+        __le16 transfer_status;
+} __attribute__((aligned(16)));
+
+struct db_descriptor {
+        __le16 first_size;
+        __le16 control;
+        __le16 second_req_count;
+        __le16 first_req_count;
+        __le32 branch_address;
+        __le16 second_res_count;
+        __le16 first_res_count;
+        __le32 reserved0;
+        __le32 first_buffer;
+        __le32 second_buffer;
+        __le32 reserved1;
+} __attribute__((aligned(16)));
+
+#define CONTROL_SET(regs)       (regs)
+#define CONTROL_CLEAR(regs)     ((regs) + 4)
+#define COMMAND_PTR(regs)       ((regs) + 12)
+#define CONTEXT_MATCH(regs)     ((regs) + 16)
+
+struct ar_buffer {
+        struct descriptor descriptor;
+        struct ar_buffer *next;
+        __le32 data[0];
+};
+
+struct ar_context {
+        struct fw_ohci *ohci;
+        struct ar_buffer *current_buffer;
+        struct ar_buffer *last_buffer;
+        void *pointer;
+        u32 regs;
+        struct tasklet_struct tasklet;
+};
+
+struct context;
+
+typedef int (*descriptor_callback_t)(struct context *ctx,
+                                     struct descriptor *d,
+                                     struct descriptor *last);
+struct context {
+        struct fw_ohci *ohci;
+        u32 regs;
+
+        struct descriptor *buffer;
+        dma_addr_t buffer_bus;
+        size_t buffer_size;
+        struct descriptor *head_descriptor;
+        struct descriptor *tail_descriptor;
+        struct descriptor *tail_descriptor_last;
+        struct descriptor *prev_descriptor;
+
+        descriptor_callback_t callback;
+
+        struct tasklet_struct tasklet;
+};
+
+#define IT_HEADER_SY(v)          ((v) <<  0)
+#define IT_HEADER_TCODE(v)       ((v) <<  4)
+#define IT_HEADER_CHANNEL(v)     ((v) <<  8)
+#define IT_HEADER_TAG(v)         ((v) << 14)
+#define IT_HEADER_SPEED(v)       ((v) << 16)
+#define IT_HEADER_DATA_LENGTH(v) ((v) << 16)
+
+struct iso_context {
+        struct fw_iso_context base;
+        struct context context;
+        void *header;
+        size_t header_length;
+};
+
+#define CONFIG_ROM_SIZE 1024
+
+struct fw_ohci {
+        struct fw_card card;
+
+        u32 version;
+        __iomem char *registers;
+        dma_addr_t self_id_bus;
+        __le32 *self_id_cpu;
+        struct tasklet_struct bus_reset_tasklet;
+        int node_id;
+        int generation;
+        int request_generation;
+        u32 bus_seconds;
+
+        /*
+         * Spinlock for accessing fw_ohci data.  Never call out of
+         * this driver with this lock held.
+         */
+        spinlock_t lock;
+        u32 self_id_buffer[512];
+
+        /* Config rom buffers */
+        __be32 *config_rom;
+        dma_addr_t config_rom_bus;
+        __be32 *next_config_rom;
+        dma_addr_t next_config_rom_bus;
+        u32 next_header;
+
+        struct ar_context ar_request_ctx;
+        struct ar_context ar_response_ctx;
+        struct context at_request_ctx;
+        struct context at_response_ctx;
+
+        u32 it_context_mask;
+        struct iso_context *it_context_list;
+        u32 ir_context_mask;
+        struct iso_context *ir_context_list;
+};
+
+static inline struct fw_ohci *fw_ohci(struct fw_card *card)
+{
+        return container_of(card, struct fw_ohci, card);
+}
+
+#define IT_CONTEXT_CYCLE_MATCH_ENABLE   0x80000000
+#define IR_CONTEXT_BUFFER_FILL          0x80000000
+#define IR_CONTEXT_ISOCH_HEADER         0x40000000
+#define IR_CONTEXT_CYCLE_MATCH_ENABLE   0x20000000
+#define IR_CONTEXT_MULTI_CHANNEL_MODE   0x10000000
+#define IR_CONTEXT_DUAL_BUFFER_MODE     0x08000000
+
+#define CONTEXT_RUN     0x8000
+#define CONTEXT_WAKE    0x1000
+#define CONTEXT_DEAD    0x0800
+#define CONTEXT_ACTIVE  0x0400
+
+#define OHCI1394_MAX_AT_REQ_RETRIES     0x2
+#define OHCI1394_MAX_AT_RESP_RETRIES    0x2
+#define OHCI1394_MAX_PHYS_RESP_RETRIES  0x8
+
+#define FW_OHCI_MAJOR                   240
+#define OHCI1394_REGISTER_SIZE          0x800
+#define OHCI_LOOP_COUNT                 500
+#define OHCI1394_PCI_HCI_Control        0x40
+#define SELF_ID_BUF_SIZE                0x800
+#define OHCI_TCODE_PHY_PACKET           0x0e
+#define OHCI_VERSION_1_1                0x010010
+#define ISO_BUFFER_SIZE                 (64 * 1024)
+#define AT_BUFFER_SIZE                  4096
+
+static char ohci_driver_name[] = KBUILD_MODNAME;
+
+static inline void reg_write(const struct fw_ohci *ohci, int offset, u32 data)
+{
+        writel(data, ohci->registers + offset);
+}
+
+static inline u32 reg_read(const struct fw_ohci *ohci, int offset)
+{
+        return readl(ohci->registers + offset);
+}
+
+static inline void flush_writes(const struct fw_ohci *ohci)
+{
+        /* Do a dummy read to flush writes. */
+        reg_read(ohci, OHCI1394_Version);
+}
+
+static int
+ohci_update_phy_reg(struct fw_card *card, int addr,
+                    int clear_bits, int set_bits)
+{
+        struct fw_ohci *ohci = fw_ohci(card);
+        u32 val, old;
+
+        reg_write(ohci, OHCI1394_PhyControl, OHCI1394_PhyControl_Read(addr));
+        msleep(2);
+        val = reg_read(ohci, OHCI1394_PhyControl);
+        if ((val & OHCI1394_PhyControl_ReadDone) == 0) {
+                fw_error("failed to set phy reg bits.\n");
+                return -EBUSY;
+        }
+
+        old = OHCI1394_PhyControl_ReadData(val);
+        old = (old & ~clear_bits) | set_bits;
+        reg_write(ohci, OHCI1394_PhyControl,
+                  OHCI1394_PhyControl_Write(addr, old));
+
+        return 0;
+}
+
+static int ar_context_add_page(struct ar_context *ctx)
+{
+        struct device *dev = ctx->ohci->card.device;
+        struct ar_buffer *ab;
+        dma_addr_t ab_bus;
+        size_t offset;
+
+        ab = (struct ar_buffer *) __get_free_page(GFP_ATOMIC);
+        if (ab == NULL)
+                return -ENOMEM;
+
+        ab_bus = dma_map_single(dev, ab, PAGE_SIZE, DMA_BIDIRECTIONAL);
+        if (dma_mapping_error(ab_bus)) {
+                free_page((unsigned long) ab);
+                return -ENOMEM;
+        }
+
+        memset(&ab->descriptor, 0, sizeof(ab->descriptor));
+        ab->descriptor.control        = cpu_to_le16(DESCRIPTOR_INPUT_MORE |
+                                                    DESCRIPTOR_STATUS |
+                                                    DESCRIPTOR_BRANCH_ALWAYS);
+        offset = offsetof(struct ar_buffer, data);
+        ab->descriptor.req_count      = cpu_to_le16(PAGE_SIZE - offset);
+        ab->descriptor.data_address   = cpu_to_le32(ab_bus + offset);
+        ab->descriptor.res_count      = cpu_to_le16(PAGE_SIZE - offset);
+        ab->descriptor.branch_address = 0;
+
+        dma_sync_single_for_device(dev, ab_bus, PAGE_SIZE, DMA_BIDIRECTIONAL);
+
+        ctx->last_buffer->descriptor.branch_address = ab_bus | 1;
+        ctx->last_buffer->next = ab;
+        ctx->last_buffer = ab;
+
+        reg_write(ctx->ohci, CONTROL_SET(ctx->regs), CONTEXT_WAKE);
+        flush_writes(ctx->ohci);
+
+        return 0;
+}
+
+static __le32 *handle_ar_packet(struct ar_context *ctx, __le32 *buffer)
+{
+        struct fw_ohci *ohci = ctx->ohci;
+        struct fw_packet p;
+        u32 status, length, tcode;
+
+        p.header[0] = le32_to_cpu(buffer[0]);
+        p.header[1] = le32_to_cpu(buffer[1]);
+        p.header[2] = le32_to_cpu(buffer[2]);
+
+        tcode = (p.header[0] >> 4) & 0x0f;
+        switch (tcode) {
+        case TCODE_WRITE_QUADLET_REQUEST:
+        case TCODE_READ_QUADLET_RESPONSE:
+                p.header[3] = (__force __u32) buffer[3];
+                p.header_length = 16;
+                p.payload_length = 0;
+                break;
+
+        case TCODE_READ_BLOCK_REQUEST :
+                p.header[3] = le32_to_cpu(buffer[3]);
+                p.header_length = 16;
+                p.payload_length = 0;
+                break;
+
+        case TCODE_WRITE_BLOCK_REQUEST:
+        case TCODE_READ_BLOCK_RESPONSE:
+        case TCODE_LOCK_REQUEST:
+        case TCODE_LOCK_RESPONSE:
+                p.header[3] = le32_to_cpu(buffer[3]);
+                p.header_length = 16;
+                p.payload_length = p.header[3] >> 16;
+                break;
+
+        case TCODE_WRITE_RESPONSE:
+        case TCODE_READ_QUADLET_REQUEST:
+        case OHCI_TCODE_PHY_PACKET:
+                p.header_length = 12;
+                p.payload_length = 0;
+                break;
+        }
+
+        p.payload = (void *) buffer + p.header_length;
+
+        /* FIXME: What to do about evt_* errors? */
+        length = (p.header_length + p.payload_length + 3) / 4;
+        status = le32_to_cpu(buffer[length]);
+
+        p.ack        = ((status >> 16) & 0x1f) - 16;
+        p.speed      = (status >> 21) & 0x7;
+        p.timestamp  = status & 0xffff;
+        p.generation = ohci->request_generation;
+
+        /*
+         * The OHCI bus reset handler synthesizes a phy packet with
+         * the new generation number when a bus reset happens (see
+         * section 8.4.2.3).  This helps us determine when a request
+         * was received and make sure we send the response in the same
+         * generation.  We only need this for requests; for responses
+         * we use the unique tlabel for finding the matching
+         * request.
+         */
+
+        if (p.ack + 16 == 0x09)
+                ohci->request_generation = (buffer[2] >> 16) & 0xff;
+        else if (ctx == &ohci->ar_request_ctx)
+                fw_core_handle_request(&ohci->card, &p);
+        else
+                fw_core_handle_response(&ohci->card, &p);
+
+        return buffer + length + 1;
+}
+
+static void ar_context_tasklet(unsigned long data)
+{
+        struct ar_context *ctx = (struct ar_context *)data;
+        struct fw_ohci *ohci = ctx->ohci;
+        struct ar_buffer *ab;
+        struct descriptor *d;
+        void *buffer, *end;
+
+        ab = ctx->current_buffer;
+        d = &ab->descriptor;
+
+        if (d->res_count == 0) {
+                size_t size, rest, offset;
+
+                /*
+                 * This descriptor is finished and we may have a
+                 * packet split across this and the next buffer. We
+                 * reuse the page for reassembling the split packet.
+                 */
+
+                offset = offsetof(struct ar_buffer, data);
+                dma_unmap_single(ohci->card.device,
+                                 ab->descriptor.data_address - offset,
+                                 PAGE_SIZE, DMA_BIDIRECTIONAL);
+
+                buffer = ab;
+                ab = ab->next;
+                d = &ab->descriptor;
+                size = buffer + PAGE_SIZE - ctx->pointer;
+                rest = le16_to_cpu(d->req_count) - le16_to_cpu(d->res_count);
+                memmove(buffer, ctx->pointer, size);
+                memcpy(buffer + size, ab->data, rest);
+                ctx->current_buffer = ab;
+                ctx->pointer = (void *) ab->data + rest;
+                end = buffer + size + rest;
+
+                while (buffer < end)
+                        buffer = handle_ar_packet(ctx, buffer);
+
+                free_page((unsigned long)buffer);
+                ar_context_add_page(ctx);
+        } else {
+                buffer = ctx->pointer;
+                ctx->pointer = end =
+                        (void *) ab + PAGE_SIZE - le16_to_cpu(d->res_count);
+
+                while (buffer < end)
+                        buffer = handle_ar_packet(ctx, buffer);
+        }
+}
+
+static int
+ar_context_init(struct ar_context *ctx, struct fw_ohci *ohci, u32 regs)
+{
+        struct ar_buffer ab;
+
+        ctx->regs        = regs;
+        ctx->ohci        = ohci;
+        ctx->last_buffer = &ab;
+        tasklet_init(&ctx->tasklet, ar_context_tasklet, (unsigned long)ctx);
+
+        ar_context_add_page(ctx);
+        ar_context_add_page(ctx);
+        ctx->current_buffer = ab.next;
+        ctx->pointer = ctx->current_buffer->data;
+
+        reg_write(ctx->ohci, COMMAND_PTR(ctx->regs), ab.descriptor.branch_address);
+        reg_write(ctx->ohci, CONTROL_SET(ctx->regs), CONTEXT_RUN);
+        flush_writes(ctx->ohci);
+
+        return 0;
+}
+
+static void context_tasklet(unsigned long data)
+{
+        struct context *ctx = (struct context *) data;
+        struct fw_ohci *ohci = ctx->ohci;
+        struct descriptor *d, *last;
+        u32 address;
+        int z;
+
+        dma_sync_single_for_cpu(ohci->card.device, ctx->buffer_bus,
+                                ctx->buffer_size, DMA_TO_DEVICE);
+
+        d    = ctx->tail_descriptor;
+        last = ctx->tail_descriptor_last;
+
+        while (last->branch_address != 0) {
+                address = le32_to_cpu(last->branch_address);
+                z = address & 0xf;
+                d = ctx->buffer + (address - ctx->buffer_bus) / sizeof(*d);
+                last = (z == 2) ? d : d + z - 1;
+
+                if (!ctx->callback(ctx, d, last))
+                        break;
+
+                ctx->tail_descriptor      = d;
+                ctx->tail_descriptor_last = last;
+        }
+}
+
+static int
+context_init(struct context *ctx, struct fw_ohci *ohci,
+             size_t buffer_size, u32 regs,
+             descriptor_callback_t callback)
+{
+        ctx->ohci = ohci;
+        ctx->regs = regs;
+        ctx->buffer_size = buffer_size;
+        ctx->buffer = kmalloc(buffer_size, GFP_KERNEL);
+        if (ctx->buffer == NULL)
+                return -ENOMEM;
+
+        tasklet_init(&ctx->tasklet, context_tasklet, (unsigned long)ctx);
+        ctx->callback = callback;
+
+        ctx->buffer_bus =
+                dma_map_single(ohci->card.device, ctx->buffer,
+                               buffer_size, DMA_TO_DEVICE);
+        if (dma_mapping_error(ctx->buffer_bus)) {
+                kfree(ctx->buffer);
+                return -ENOMEM;
+        }
+
+        ctx->head_descriptor      = ctx->buffer;
+        ctx->prev_descriptor      = ctx->buffer;
+        ctx->tail_descriptor      = ctx->buffer;
+        ctx->tail_descriptor_last = ctx->buffer;
+
+        /*
+         * We put a dummy descriptor in the buffer that has a NULL
+         * branch address and looks like it's been sent.  That way we
+         * have a descriptor to append DMA programs to.  Also, the
+         * ring buffer invariant is that it always has at least one
+         * element so that head == tail means buffer full.
+         */
+
+        memset(ctx->head_descriptor, 0, sizeof(*ctx->head_descriptor));
+        ctx->head_descriptor->control = cpu_to_le16(DESCRIPTOR_OUTPUT_LAST);
+        ctx->head_descriptor->transfer_status = cpu_to_le16(0x8011);
+        ctx->head_descriptor++;
+
+        return 0;
+}
+
+static void
+context_release(struct context *ctx)
+{
+        struct fw_card *card = &ctx->ohci->card;
+
+        dma_unmap_single(card->device, ctx->buffer_bus,
+                         ctx->buffer_size, DMA_TO_DEVICE);
+        kfree(ctx->buffer);
+}
+
+static struct descriptor *
+context_get_descriptors(struct context *ctx, int z, dma_addr_t *d_bus)
+{
+        struct descriptor *d, *tail, *end;
+
+        d = ctx->head_descriptor;
+        tail = ctx->tail_descriptor;
+        end = ctx->buffer + ctx->buffer_size / sizeof(*d);
+
+        if (d + z <= tail) {
+                goto has_space;
+        } else if (d > tail && d + z <= end) {
+                goto has_space;
+        } else if (d > tail && ctx->buffer + z <= tail) {
+                d = ctx->buffer;
+                goto has_space;
+        }
+
+        return NULL;
+
+ has_space:
+        memset(d, 0, z * sizeof(*d));
+        *d_bus = ctx->buffer_bus + (d - ctx->buffer) * sizeof(*d);
+
+        return d;
+}
+
+static void context_run(struct context *ctx, u32 extra)
+{
+        struct fw_ohci *ohci = ctx->ohci;
+
+        reg_write(ohci, COMMAND_PTR(ctx->regs),
+                  le32_to_cpu(ctx->tail_descriptor_last->branch_address));
+        reg_write(ohci, CONTROL_CLEAR(ctx->regs), ~0);
+        reg_write(ohci, CONTROL_SET(ctx->regs), CONTEXT_RUN | extra);
+        flush_writes(ohci);
+}
+
+static void context_append(struct context *ctx,
+                           struct descriptor *d, int z, int extra)
+{
+        dma_addr_t d_bus;
+
+        d_bus = ctx->buffer_bus + (d - ctx->buffer) * sizeof(*d);
+
+        ctx->head_descriptor = d + z + extra;
+        ctx->prev_descriptor->branch_address = cpu_to_le32(d_bus | z);
+        ctx->prev_descriptor = z == 2 ? d : d + z - 1;
+
+        dma_sync_single_for_device(ctx->ohci->card.device, ctx->buffer_bus,
+                                   ctx->buffer_size, DMA_TO_DEVICE);
+
+        reg_write(ctx->ohci, CONTROL_SET(ctx->regs), CONTEXT_WAKE);
+        flush_writes(ctx->ohci);
+}
+
+static void context_stop(struct context *ctx)
+{
+        u32 reg;
+        int i;
+
+        reg_write(ctx->ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
+        flush_writes(ctx->ohci);
+
+        for (i = 0; i < 10; i++) {
+                reg = reg_read(ctx->ohci, CONTROL_SET(ctx->regs));
+                if ((reg & CONTEXT_ACTIVE) == 0)
+                        break;
+
+                fw_notify("context_stop: still active (0x%08x)\n", reg);
+                msleep(1);
+        }
+}
+
+struct driver_data {
+        struct fw_packet *packet;
+};
+
+/*
+ * This function apppends a packet to the DMA queue for transmission.
+ * Must always be called with the ochi->lock held to ensure proper
+ * generation handling and locking around packet queue manipulation.
+ */
+static int
+at_context_queue_packet(struct context *ctx, struct fw_packet *packet)
+{
+        struct fw_ohci *ohci = ctx->ohci;
+        dma_addr_t d_bus, payload_bus;
+        struct driver_data *driver_data;
+        struct descriptor *d, *last;
+        __le32 *header;
+        int z, tcode;
+        u32 reg;
+
+        d = context_get_descriptors(ctx, 4, &d_bus);
+        if (d == NULL) {
+                packet->ack = RCODE_SEND_ERROR;
+                return -1;
+        }
+
+        d[0].control   = cpu_to_le16(DESCRIPTOR_KEY_IMMEDIATE);
+        d[0].res_count = cpu_to_le16(packet->timestamp);
+
+        /*
+         * The DMA format for asyncronous link packets is different
+         * from the IEEE1394 layout, so shift the fields around
+         * accordingly.  If header_length is 8, it's a PHY packet, to
+         * which we need to prepend an extra quadlet.
+         */
+
+        header = (__le32 *) &d[1];
+        if (packet->header_length > 8) {
+                header[0] = cpu_to_le32((packet->header[0] & 0xffff) |
+                                        (packet->speed << 16));
+                header[1] = cpu_to_le32((packet->header[1] & 0xffff) |
+                                        (packet->header[0] & 0xffff0000));
+                header[2] = cpu_to_le32(packet->header[2]);
+
+                tcode = (packet->header[0] >> 4) & 0x0f;
+                if (TCODE_IS_BLOCK_PACKET(tcode))
+                        header[3] = cpu_to_le32(packet->header[3]);
+                else
+                        header[3] = (__force __le32) packet->header[3];
+
+                d[0].req_count = cpu_to_le16(packet->header_length);
+        } else {
+                header[0] = cpu_to_le32((OHCI1394_phy_tcode << 4) |
+                                        (packet->speed << 16));
+                header[1] = cpu_to_le32(packet->header[0]);
+                header[2] = cpu_to_le32(packet->header[1]);
+                d[0].req_count = cpu_to_le16(12);
+        }
+
+        driver_data = (struct driver_data *) &d[3];
+        driver_data->packet = packet;
+        packet->driver_data = driver_data;
+        
+        if (packet->payload_length > 0) {
+                payload_bus =
+                        dma_map_single(ohci->card.device, packet->payload,
+                                       packet->payload_length, DMA_TO_DEVICE);
+                if (dma_mapping_error(payload_bus)) {
+                        packet->ack = RCODE_SEND_ERROR;
+                        return -1;
+                }
+
+                d[2].req_count    = cpu_to_le16(packet->payload_length);
+                d[2].data_address = cpu_to_le32(payload_bus);
+                last = &d[2];
+                z = 3;
+        } else {
+                last = &d[0];
+                z = 2;
+        }
+
+        last->control |= cpu_to_le16(DESCRIPTOR_OUTPUT_LAST |
+                                     DESCRIPTOR_IRQ_ALWAYS |
+                                     DESCRIPTOR_BRANCH_ALWAYS);
+
+        /* FIXME: Document how the locking works. */
+        if (ohci->generation != packet->generation) {
+                packet->ack = RCODE_GENERATION;
+                return -1;
+        }
+
+        context_append(ctx, d, z, 4 - z);
+
+        /* If the context isn't already running, start it up. */
+        reg = reg_read(ctx->ohci, CONTROL_SET(ctx->regs));
+        if ((reg & CONTEXT_RUN) == 0)
+                context_run(ctx, 0);
+
+        return 0;
+}
+
+static int handle_at_packet(struct context *context,
+                            struct descriptor *d,
+                            struct descriptor *last)
+{
+        struct driver_data *driver_data;
+        struct fw_packet *packet;
+        struct fw_ohci *ohci = context->ohci;
+        dma_addr_t payload_bus;
+        int evt;
+
+        if (last->transfer_status == 0)
+                /* This descriptor isn't done yet, stop iteration. */
+                return 0;
+
+        driver_data = (struct driver_data *) &d[3];
+        packet = driver_data->packet;
+        if (packet == NULL)
+                /* This packet was cancelled, just continue. */
+                return 1;
+
+        payload_bus = le32_to_cpu(last->data_address);
+        if (payload_bus != 0)
+                dma_unmap_single(ohci->card.device, payload_bus,
+                                 packet->payload_length, DMA_TO_DEVICE);
+
+        evt = le16_to_cpu(last->transfer_status) & 0x1f;
+        packet->timestamp = le16_to_cpu(last->res_count);
+
+        switch (evt) {
+        case OHCI1394_evt_timeout:
+                /* Async response transmit timed out. */
+                packet->ack = RCODE_CANCELLED;
+                break;
+
+        case OHCI1394_evt_flushed:
+                /*
+                 * The packet was flushed should give same error as
+                 * when we try to use a stale generation count.
+                 */
+                packet->ack = RCODE_GENERATION;
+                break;
+
+        case OHCI1394_evt_missing_ack:
+                /*
+                 * Using a valid (current) generation count, but the
+                 * node is not on the bus or not sending acks.
+                 */
+                packet->ack = RCODE_NO_ACK;
+                break;
+
+        case ACK_COMPLETE + 0x10:
+        case ACK_PENDING + 0x10:
+        case ACK_BUSY_X + 0x10:
+        case ACK_BUSY_A + 0x10:
+        case ACK_BUSY_B + 0x10:
+        case ACK_DATA_ERROR + 0x10:
+        case ACK_TYPE_ERROR + 0x10:
+                packet->ack = evt - 0x10;
+                break;
+
+        default:
+                packet->ack = RCODE_SEND_ERROR;
+                break;
+        }
+
+        packet->callback(packet, &ohci->card, packet->ack);
+
+        return 1;
+}
+
+#define HEADER_GET_DESTINATION(q)       (((q) >> 16) & 0xffff)
+#define HEADER_GET_TCODE(q)             (((q) >> 4) & 0x0f)
+#define HEADER_GET_OFFSET_HIGH(q)       (((q) >> 0) & 0xffff)
+#define HEADER_GET_DATA_LENGTH(q)       (((q) >> 16) & 0xffff)
+#define HEADER_GET_EXTENDED_TCODE(q)    (((q) >> 0) & 0xffff)
+
+static void
+handle_local_rom(struct fw_ohci *ohci, struct fw_packet *packet, u32 csr)
+{
+        struct fw_packet response;
+        int tcode, length, i;
+
+        tcode = HEADER_GET_TCODE(packet->header[0]);
+        if (TCODE_IS_BLOCK_PACKET(tcode))
+                length = HEADER_GET_DATA_LENGTH(packet->header[3]);
+        else
+                length = 4;
+
+        i = csr - CSR_CONFIG_ROM;
+        if (i + length > CONFIG_ROM_SIZE) {
+                fw_fill_response(&response, packet->header,
+                                 RCODE_ADDRESS_ERROR, NULL, 0);
+        } else if (!TCODE_IS_READ_REQUEST(tcode)) {
+                fw_fill_response(&response, packet->header,
+                                 RCODE_TYPE_ERROR, NULL, 0);
+        } else {
+                fw_fill_response(&response, packet->header, RCODE_COMPLETE,
+                                 (void *) ohci->config_rom + i, length);
+        }
+
+        fw_core_handle_response(&ohci->card, &response);
+}
+
+static void
+handle_local_lock(struct fw_ohci *ohci, struct fw_packet *packet, u32 csr)
+{
+        struct fw_packet response;
+        int tcode, length, ext_tcode, sel;
+        __be32 *payload, lock_old;
+        u32 lock_arg, lock_data;
+
+        tcode = HEADER_GET_TCODE(packet->header[0]);
+        length = HEADER_GET_DATA_LENGTH(packet->header[3]);
+        payload = packet->payload;
+        ext_tcode = HEADER_GET_EXTENDED_TCODE(packet->header[3]);
+
+        if (tcode == TCODE_LOCK_REQUEST &&
+            ext_tcode == EXTCODE_COMPARE_SWAP && length == 8) {
+                lock_arg = be32_to_cpu(payload[0]);
+                lock_data = be32_to_cpu(payload[1]);
+        } else if (tcode == TCODE_READ_QUADLET_REQUEST) {
+                lock_arg = 0;
+                lock_data = 0;
+        } else {
+                fw_fill_response(&response, packet->header,
+                                 RCODE_TYPE_ERROR, NULL, 0);
+                goto out;
+        }
+
+        sel = (csr - CSR_BUS_MANAGER_ID) / 4;
+        reg_write(ohci, OHCI1394_CSRData, lock_data);
+        reg_write(ohci, OHCI1394_CSRCompareData, lock_arg);
+        reg_write(ohci, OHCI1394_CSRControl, sel);
+
+        if (reg_read(ohci, OHCI1394_CSRControl) & 0x80000000)
+                lock_old = cpu_to_be32(reg_read(ohci, OHCI1394_CSRData));
+        else
+                fw_notify("swap not done yet\n");
+
+        fw_fill_response(&response, packet->header,
+                         RCODE_COMPLETE, &lock_old, sizeof(lock_old));
+ out:
+        fw_core_handle_response(&ohci->card, &response);
+}
+
+static void
+handle_local_request(struct context *ctx, struct fw_packet *packet)
+{
+        u64 offset;
+        u32 csr;
+
+        if (ctx == &ctx->ohci->at_request_ctx) {
+                packet->ack = ACK_PENDING;
+                packet->callback(packet, &ctx->ohci->card, packet->ack);
+        }
+
+        offset =
+                ((unsigned long long)
+                 HEADER_GET_OFFSET_HIGH(packet->header[1]) << 32) |
+                packet->header[2];
+        csr = offset - CSR_REGISTER_BASE;
+
+        /* Handle config rom reads. */
+        if (csr >= CSR_CONFIG_ROM && csr < CSR_CONFIG_ROM_END)
+                handle_local_rom(ctx->ohci, packet, csr);
+        else switch (csr) {
+        case CSR_BUS_MANAGER_ID:
+        case CSR_BANDWIDTH_AVAILABLE:
+        case CSR_CHANNELS_AVAILABLE_HI:
+        case CSR_CHANNELS_AVAILABLE_LO:
+                handle_local_lock(ctx->ohci, packet, csr);
+                break;
+        default:
+                if (ctx == &ctx->ohci->at_request_ctx)
+                        fw_core_handle_request(&ctx->ohci->card, packet);
+                else
+                        fw_core_handle_response(&ctx->ohci->card, packet);
+                break;
+        }
+
+        if (ctx == &ctx->ohci->at_response_ctx) {
+                packet->ack = ACK_COMPLETE;
+                packet->callback(packet, &ctx->ohci->card, packet->ack);
+        }
+}
+
+static void
+at_context_transmit(struct context *ctx, struct fw_packet *packet)
+{
+        unsigned long flags;
+        int retval;
+
+        spin_lock_irqsave(&ctx->ohci->lock, flags);
+
+        if (HEADER_GET_DESTINATION(packet->header[0]) == ctx->ohci->node_id &&
+            ctx->ohci->generation == packet->generation) {
+                spin_unlock_irqrestore(&ctx->ohci->lock, flags);
+                handle_local_request(ctx, packet);
+                return;
+        }
+
+        retval = at_context_queue_packet(ctx, packet);
+        spin_unlock_irqrestore(&ctx->ohci->lock, flags);
+
+        if (retval < 0)
+                packet->callback(packet, &ctx->ohci->card, packet->ack);
+        
+}
+
+static void bus_reset_tasklet(unsigned long data)
+{
+        struct fw_ohci *ohci = (struct fw_ohci *)data;
+        int self_id_count, i, j, reg;
+        int generation, new_generation;
+        unsigned long flags;
+
+        reg = reg_read(ohci, OHCI1394_NodeID);
+        if (!(reg & OHCI1394_NodeID_idValid)) {
+                fw_error("node ID not valid, new bus reset in progress\n");
+                return;
+        }
+        ohci->node_id = reg & 0xffff;
+
+        /*
+         * The count in the SelfIDCount register is the number of
+         * bytes in the self ID receive buffer.  Since we also receive
+         * the inverted quadlets and a header quadlet, we shift one
+         * bit extra to get the actual number of self IDs.
+         */
+
+        self_id_count = (reg_read(ohci, OHCI1394_SelfIDCount) >> 3) & 0x3ff;
+        generation = (le32_to_cpu(ohci->self_id_cpu[0]) >> 16) & 0xff;
+
+        for (i = 1, j = 0; j < self_id_count; i += 2, j++) {
+                if (ohci->self_id_cpu[i] != ~ohci->self_id_cpu[i + 1])
+                        fw_error("inconsistent self IDs\n");
+                ohci->self_id_buffer[j] = le32_to_cpu(ohci->self_id_cpu[i]);
+        }
+
+        /*
+         * Check the consistency of the self IDs we just read.  The
+         * problem we face is that a new bus reset can start while we
+         * read out the self IDs from the DMA buffer. If this happens,
+         * the DMA buffer will be overwritten with new self IDs and we
+         * will read out inconsistent data.  The OHCI specification
+         * (section 11.2) recommends a technique similar to
+         * linux/seqlock.h, where we remember the generation of the
+         * self IDs in the buffer before reading them out and compare
+         * it to the current generation after reading them out.  If
+         * the two generations match we know we have a consistent set
+         * of self IDs.
+         */
+
+        new_generation = (reg_read(ohci, OHCI1394_SelfIDCount) >> 16) & 0xff;
+        if (new_generation != generation) {
+                fw_notify("recursive bus reset detected, "
+                          "discarding self ids\n");
+                return;
+        }
+
+        /* FIXME: Document how the locking works. */
+        spin_lock_irqsave(&ohci->lock, flags);
+
+        ohci->generation = generation;
+        context_stop(&ohci->at_request_ctx);
+        context_stop(&ohci->at_response_ctx);
+        reg_write(ohci, OHCI1394_IntEventClear, OHCI1394_busReset);
+
+        /*
+         * This next bit is unrelated to the AT context stuff but we
+         * have to do it under the spinlock also.  If a new config rom
+         * was set up before this reset, the old one is now no longer
+         * in use and we can free it. Update the config rom pointers
+         * to point to the current config rom and clear the
+         * next_config_rom pointer so a new udpate can take place.
+         */
+
+        if (ohci->next_config_rom != NULL) {
+                dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
+                                  ohci->config_rom, ohci->config_rom_bus);
+                ohci->config_rom      = ohci->next_config_rom;
+                ohci->config_rom_bus  = ohci->next_config_rom_bus;
+                ohci->next_config_rom = NULL;
+
+                /*
+                 * Restore config_rom image and manually update
+                 * config_rom registers.  Writing the header quadlet
+                 * will indicate that the config rom is ready, so we
+                 * do that last.
+                 */
+                reg_write(ohci, OHCI1394_BusOptions,
+                          be32_to_cpu(ohci->config_rom[2]));
+                ohci->config_rom[0] = cpu_to_be32(ohci->next_header);
+                reg_write(ohci, OHCI1394_ConfigROMhdr, ohci->next_header);
+        }
+
+        spin_unlock_irqrestore(&ohci->lock, flags);
+
+        fw_core_handle_bus_reset(&ohci->card, ohci->node_id, generation,
+                                 self_id_count, ohci->self_id_buffer);
+}
+
+static irqreturn_t irq_handler(int irq, void *data)
+{
+        struct fw_ohci *ohci = data;
+        u32 event, iso_event, cycle_time;
+        int i;
+
+        event = reg_read(ohci, OHCI1394_IntEventClear);
+
+        if (!event)
+                return IRQ_NONE;
+
+        reg_write(ohci, OHCI1394_IntEventClear, event);
+
+        if (event & OHCI1394_selfIDComplete)
+                tasklet_schedule(&ohci->bus_reset_tasklet);
+
+        if (event & OHCI1394_RQPkt)
+                tasklet_schedule(&ohci->ar_request_ctx.tasklet);
+
+        if (event & OHCI1394_RSPkt)
+                tasklet_schedule(&ohci->ar_response_ctx.tasklet);
+
+        if (event & OHCI1394_reqTxComplete)
+                tasklet_schedule(&ohci->at_request_ctx.tasklet);
+
+        if (event & OHCI1394_respTxComplete)
+                tasklet_schedule(&ohci->at_response_ctx.tasklet);
+
+        iso_event = reg_read(ohci, OHCI1394_IsoRecvIntEventClear);
+        reg_write(ohci, OHCI1394_IsoRecvIntEventClear, iso_event);
+
+        while (iso_event) {
+                i = ffs(iso_event) - 1;
+                tasklet_schedule(&ohci->ir_context_list[i].context.tasklet);
+                iso_event &= ~(1 << i);
+        }
+
+        iso_event = reg_read(ohci, OHCI1394_IsoXmitIntEventClear);
+        reg_write(ohci, OHCI1394_IsoXmitIntEventClear, iso_event);
+
+        while (iso_event) {
+                i = ffs(iso_event) - 1;
+                tasklet_schedule(&ohci->it_context_list[i].context.tasklet);
+                iso_event &= ~(1 << i);
+        }
+
+        if (event & OHCI1394_cycle64Seconds) {
+                cycle_time = reg_read(ohci, OHCI1394_IsochronousCycleTimer);
+                if ((cycle_time & 0x80000000) == 0)
+                        ohci->bus_seconds++;
+        }
+
+        return IRQ_HANDLED;
+}
+
+static int ohci_enable(struct fw_card *card, u32 *config_rom, size_t length)
+{
+        struct fw_ohci *ohci = fw_ohci(card);
+        struct pci_dev *dev = to_pci_dev(card->device);
+
+        /*
+         * When the link is not yet enabled, the atomic config rom
+         * update mechanism described below in ohci_set_config_rom()
+         * is not active.  We have to update ConfigRomHeader and
+         * BusOptions manually, and the write to ConfigROMmap takes
+         * effect immediately.  We tie this to the enabling of the
+         * link, so we have a valid config rom before enabling - the
+         * OHCI requires that ConfigROMhdr and BusOptions have valid
+         * values before enabling.
+         *
+         * However, when the ConfigROMmap is written, some controllers
+         * always read back quadlets 0 and 2 from the config rom to
+         * the ConfigRomHeader and BusOptions registers on bus reset.
+         * They shouldn't do that in this initial case where the link
+         * isn't enabled.  This means we have to use the same
+         * workaround here, setting the bus header to 0 and then write
+         * the right values in the bus reset tasklet.
+         */
+
+        ohci->next_config_rom =
+                dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE,
+                                   &ohci->next_config_rom_bus, GFP_KERNEL);
+        if (ohci->next_config_rom == NULL)
+                return -ENOMEM;
+
+        memset(ohci->next_config_rom, 0, CONFIG_ROM_SIZE);
+        fw_memcpy_to_be32(ohci->next_config_rom, config_rom, length * 4);
+
+        ohci->next_header = config_rom[0];
+        ohci->next_config_rom[0] = 0;
+        reg_write(ohci, OHCI1394_ConfigROMhdr, 0);
+        reg_write(ohci, OHCI1394_BusOptions, config_rom[2]);
+        reg_write(ohci, OHCI1394_ConfigROMmap, ohci->next_config_rom_bus);
+
+        reg_write(ohci, OHCI1394_AsReqFilterHiSet, 0x80000000);
+
+        if (request_irq(dev->irq, irq_handler,
+                        IRQF_SHARED, ohci_driver_name, ohci)) {
+                fw_error("Failed to allocate shared interrupt %d.\n",
+                         dev->irq);
+                dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
+                                  ohci->config_rom, ohci->config_rom_bus);
+                return -EIO;
+        }
+
+        reg_write(ohci, OHCI1394_HCControlSet,
+                  OHCI1394_HCControl_linkEnable |
+                  OHCI1394_HCControl_BIBimageValid);
+        flush_writes(ohci);
+
+        /*
+         * We are ready to go, initiate bus reset to finish the
+         * initialization.
+         */
+
+        fw_core_initiate_bus_reset(&ohci->card, 1);
+
+        return 0;
+}
+
+static int
+ohci_set_config_rom(struct fw_card *card, u32 *config_rom, size_t length)
+{
+        struct fw_ohci *ohci;
+        unsigned long flags;
+        int retval = 0;
+        __be32 *next_config_rom;
+        dma_addr_t next_config_rom_bus;
+
+        ohci = fw_ohci(card);
+
+        /*
+         * When the OHCI controller is enabled, the config rom update
+         * mechanism is a bit tricky, but easy enough to use.  See
+         * section 5.5.6 in the OHCI specification.
+         *
+         * The OHCI controller caches the new config rom address in a
+         * shadow register (ConfigROMmapNext) and needs a bus reset
+         * for the changes to take place.  When the bus reset is
+         * detected, the controller loads the new values for the
+         * ConfigRomHeader and BusOptions registers from the specified
+         * config rom and loads ConfigROMmap from the ConfigROMmapNext
+         * shadow register. All automatically and atomically.
+         *
+         * Now, there's a twist to this story.  The automatic load of
+         * ConfigRomHeader and BusOptions doesn't honor the
+         * noByteSwapData bit, so with a be32 config rom, the
+         * controller will load be32 values in to these registers
+         * during the atomic update, even on litte endian
+         * architectures.  The workaround we use is to put a 0 in the
+         * header quadlet; 0 is endian agnostic and means that the
+         * config rom isn't ready yet.  In the bus reset tasklet we
+         * then set up the real values for the two registers.
+         *
+         * We use ohci->lock to avoid racing with the code that sets
+         * ohci->next_config_rom to NULL (see bus_reset_tasklet).
+         */
+
+        next_config_rom =
+                dma_alloc_coherent(ohci->card.device, CONFIG_ROM_SIZE,
+                                   &next_config_rom_bus, GFP_KERNEL);
+        if (next_config_rom == NULL)
+                return -ENOMEM;
+
+        spin_lock_irqsave(&ohci->lock, flags);
+
+        if (ohci->next_config_rom == NULL) {
+                ohci->next_config_rom = next_config_rom;
+                ohci->next_config_rom_bus = next_config_rom_bus;
+
+                memset(ohci->next_config_rom, 0, CONFIG_ROM_SIZE);
+                fw_memcpy_to_be32(ohci->next_config_rom, config_rom,
+                                  length * 4);
+
+                ohci->next_header = config_rom[0];
+                ohci->next_config_rom[0] = 0;
+
+                reg_write(ohci, OHCI1394_ConfigROMmap,
+                          ohci->next_config_rom_bus);
+        } else {
+                dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
+                                  next_config_rom, next_config_rom_bus);
+                retval = -EBUSY;
+        }
+
+        spin_unlock_irqrestore(&ohci->lock, flags);
+
+        /*
+         * Now initiate a bus reset to have the changes take
+         * effect. We clean up the old config rom memory and DMA
+         * mappings in the bus reset tasklet, since the OHCI
+         * controller could need to access it before the bus reset
+         * takes effect.
+         */
+        if (retval == 0)
+                fw_core_initiate_bus_reset(&ohci->card, 1);
+
+        return retval;
+}
+
+static void ohci_send_request(struct fw_card *card, struct fw_packet *packet)
+{
+        struct fw_ohci *ohci = fw_ohci(card);
+
+        at_context_transmit(&ohci->at_request_ctx, packet);
+}
+
+static void ohci_send_response(struct fw_card *card, struct fw_packet *packet)
+{
+        struct fw_ohci *ohci = fw_ohci(card);
+
+        at_context_transmit(&ohci->at_response_ctx, packet);
+}
+
+static int ohci_cancel_packet(struct fw_card *card, struct fw_packet *packet)
+{
+        struct fw_ohci *ohci = fw_ohci(card);
+        struct context *ctx = &ohci->at_request_ctx;
+        struct driver_data *driver_data = packet->driver_data;
+        int retval = -ENOENT;
+
+        tasklet_disable(&ctx->tasklet);
+
+        if (packet->ack != 0)
+                goto out;
+
+        driver_data->packet = NULL;
+        packet->ack = RCODE_CANCELLED;
+        packet->callback(packet, &ohci->card, packet->ack);
+        retval = 0;
+
+ out:
+        tasklet_enable(&ctx->tasklet);
+
+        return retval;
+}
+
+static int
+ohci_enable_phys_dma(struct fw_card *card, int node_id, int generation)
+{
+        struct fw_ohci *ohci = fw_ohci(card);
+        unsigned long flags;
+        int n, retval = 0;
+
+        /*
+         * FIXME:  Make sure this bitmask is cleared when we clear the busReset
+         * interrupt bit.  Clear physReqResourceAllBuses on bus reset.
+         */
+
+        spin_lock_irqsave(&ohci->lock, flags);
+
+        if (ohci->generation != generation) {
+                retval = -ESTALE;
+                goto out;
+        }
+
+        /*
+         * Note, if the node ID contains a non-local bus ID, physical DMA is
+         * enabled for _all_ nodes on remote buses.
+         */
+
+        n = (node_id & 0xffc0) == LOCAL_BUS ? node_id & 0x3f : 63;
+        if (n < 32)
+                reg_write(ohci, OHCI1394_PhyReqFilterLoSet, 1 << n);
+        else
+                reg_write(ohci, OHCI1394_PhyReqFilterHiSet, 1 << (n - 32));
+
+        flush_writes(ohci);
+ out:
+        spin_unlock_irqrestore(&ohci->lock, flags);
+        return retval;
+}
+
+static u64
+ohci_get_bus_time(struct fw_card *card)
+{
+        struct fw_ohci *ohci = fw_ohci(card);
+        u32 cycle_time;
+        u64 bus_time;
+
+        cycle_time = reg_read(ohci, OHCI1394_IsochronousCycleTimer);
+        bus_time = ((u64) ohci->bus_seconds << 32) | cycle_time;
+
+        return bus_time;
+}
+
+static int handle_ir_dualbuffer_packet(struct context *context,
+                                       struct descriptor *d,
+                                       struct descriptor *last)
+{
+        struct iso_context *ctx =
+                container_of(context, struct iso_context, context);
+        struct db_descriptor *db = (struct db_descriptor *) d;
+        __le32 *ir_header;
+        size_t header_length;
+        void *p, *end;
+        int i;
+
+        if (db->first_res_count > 0 && db->second_res_count > 0)
+                /* This descriptor isn't done yet, stop iteration. */
+                return 0;
+
+        header_length = le16_to_cpu(db->first_req_count) -
+                le16_to_cpu(db->first_res_count);
+
+        i = ctx->header_length;
+        p = db + 1;
+        end = p + header_length;
+        while (p < end && i + ctx->base.header_size <= PAGE_SIZE) {
+                /*
+                 * The iso header is byteswapped to little endian by
+                 * the controller, but the remaining header quadlets
+                 * are big endian.  We want to present all the headers
+                 * as big endian, so we have to swap the first
+                 * quadlet.
+                 */
+                *(u32 *) (ctx->header + i) = __swab32(*(u32 *) (p + 4));
+                memcpy(ctx->header + i + 4, p + 8, ctx->base.header_size - 4);
+                i += ctx->base.header_size;
+                p += ctx->base.header_size + 4;
+        }
+
+        ctx->header_length = i;
+
+        if (le16_to_cpu(db->control) & DESCRIPTOR_IRQ_ALWAYS) {
+                ir_header = (__le32 *) (db + 1);
+                ctx->base.callback(&ctx->base,
+                                   le32_to_cpu(ir_header[0]) & 0xffff,
+                                   ctx->header_length, ctx->header,
+                                   ctx->base.callback_data);
+                ctx->header_length = 0;
+        }
+
+        return 1;
+}
+
+static int handle_it_packet(struct context *context,
+                            struct descriptor *d,
+                            struct descriptor *last)
+{
+        struct iso_context *ctx =
+                container_of(context, struct iso_context, context);
+
+        if (last->transfer_status == 0)
+                /* This descriptor isn't done yet, stop iteration. */
+                return 0;
+
+        if (le16_to_cpu(last->control) & DESCRIPTOR_IRQ_ALWAYS)
+                ctx->base.callback(&ctx->base, le16_to_cpu(last->res_count),
+                                   0, NULL, ctx->base.callback_data);
+
+        return 1;
+}
+
+static struct fw_iso_context *
+ohci_allocate_iso_context(struct fw_card *card, int type, size_t header_size)
+{
+        struct fw_ohci *ohci = fw_ohci(card);
+        struct iso_context *ctx, *list;
+        descriptor_callback_t callback;
+        u32 *mask, regs;
+        unsigned long flags;
+        int index, retval = -ENOMEM;
+
+        if (type == FW_ISO_CONTEXT_TRANSMIT) {
+                mask = &ohci->it_context_mask;
+                list = ohci->it_context_list;
+                callback = handle_it_packet;
+        } else {
+                mask = &ohci->ir_context_mask;
+                list = ohci->ir_context_list;
+                callback = handle_ir_dualbuffer_packet;
+        }
+
+        /* FIXME: We need a fallback for pre 1.1 OHCI. */
+        if (callback == handle_ir_dualbuffer_packet &&
+            ohci->version < OHCI_VERSION_1_1)
+                return ERR_PTR(-EINVAL);
+
+        spin_lock_irqsave(&ohci->lock, flags);
+        index = ffs(*mask) - 1;
+        if (index >= 0)
+                *mask &= ~(1 << index);
+        spin_unlock_irqrestore(&ohci->lock, flags);
+
+        if (index < 0)
+                return ERR_PTR(-EBUSY);
+
+        if (type == FW_ISO_CONTEXT_TRANSMIT)
+                regs = OHCI1394_IsoXmitContextBase(index);
+        else
+                regs = OHCI1394_IsoRcvContextBase(index);
+
+        ctx = &list[index];
+        memset(ctx, 0, sizeof(*ctx));
+        ctx->header_length = 0;
+        ctx->header = (void *) __get_free_page(GFP_KERNEL);
+        if (ctx->header == NULL)
+                goto out;
+
+        retval = context_init(&ctx->context, ohci, ISO_BUFFER_SIZE,
+                              regs, callback);
+        if (retval < 0)
+                goto out_with_header;
+
+        return &ctx->base;
+
+ out_with_header:
+        free_page((unsigned long)ctx->header);
+ out:
+        spin_lock_irqsave(&ohci->lock, flags);
+        *mask |= 1 << index;
+        spin_unlock_irqrestore(&ohci->lock, flags);
+
+        return ERR_PTR(retval);
+}
+
+static int ohci_start_iso(struct fw_iso_context *base,
+                          s32 cycle, u32 sync, u32 tags)
+{
+        struct iso_context *ctx = container_of(base, struct iso_context, base);
+        struct fw_ohci *ohci = ctx->context.ohci;
+        u32 control, match;
+        int index;
+
+        if (ctx->base.type == FW_ISO_CONTEXT_TRANSMIT) {
+                index = ctx - ohci->it_context_list;
+                match = 0;
+                if (cycle >= 0)
+                        match = IT_CONTEXT_CYCLE_MATCH_ENABLE |
+                                (cycle & 0x7fff) << 16;
+
+                reg_write(ohci, OHCI1394_IsoXmitIntEventClear, 1 << index);
+                reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, 1 << index);
+                context_run(&ctx->context, match);
+        } else {
+                index = ctx - ohci->ir_context_list;
+                control = IR_CONTEXT_DUAL_BUFFER_MODE | IR_CONTEXT_ISOCH_HEADER;
+                match = (tags << 28) | (sync << 8) | ctx->base.channel;
+                if (cycle >= 0) {
+                        match |= (cycle & 0x07fff) << 12;
+                        control |= IR_CONTEXT_CYCLE_MATCH_ENABLE;
+                }
+
+                reg_write(ohci, OHCI1394_IsoRecvIntEventClear, 1 << index);
+                reg_write(ohci, OHCI1394_IsoRecvIntMaskSet, 1 << index);
+                reg_write(ohci, CONTEXT_MATCH(ctx->context.regs), match);
+                context_run(&ctx->context, control);
+        }
+
+        return 0;
+}
+
+static int ohci_stop_iso(struct fw_iso_context *base)
+{
+        struct fw_ohci *ohci = fw_ohci(base->card);
+        struct iso_context *ctx = container_of(base, struct iso_context, base);
+        int index;
+
+        if (ctx->base.type == FW_ISO_CONTEXT_TRANSMIT) {
+                index = ctx - ohci->it_context_list;
+                reg_write(ohci, OHCI1394_IsoXmitIntMaskClear, 1 << index);
+        } else {
+                index = ctx - ohci->ir_context_list;
+                reg_write(ohci, OHCI1394_IsoRecvIntMaskClear, 1 << index);
+        }
+        flush_writes(ohci);
+        context_stop(&ctx->context);
+
+        return 0;
+}
+
+static void ohci_free_iso_context(struct fw_iso_context *base)
+{
+        struct fw_ohci *ohci = fw_ohci(base->card);
+        struct iso_context *ctx = container_of(base, struct iso_context, base);
+        unsigned long flags;
+        int index;
+
+        ohci_stop_iso(base);
+        context_release(&ctx->context);
+        free_page((unsigned long)ctx->header);
+
+        spin_lock_irqsave(&ohci->lock, flags);
+
+        if (ctx->base.type == FW_ISO_CONTEXT_TRANSMIT) {
+                index = ctx - ohci->it_context_list;
+                ohci->it_context_mask |= 1 << index;
+        } else {
+                index = ctx - ohci->ir_context_list;
+                ohci->ir_context_mask |= 1 << index;
+        }
+
+        spin_unlock_irqrestore(&ohci->lock, flags);
+}
+
+static int
+ohci_queue_iso_transmit(struct fw_iso_context *base,
+                        struct fw_iso_packet *packet,
+                        struct fw_iso_buffer *buffer,
+                        unsigned long payload)
+{
+        struct iso_context *ctx = container_of(base, struct iso_context, base);
+        struct descriptor *d, *last, *pd;
+        struct fw_iso_packet *p;
+        __le32 *header;
+        dma_addr_t d_bus, page_bus;
+        u32 z, header_z, payload_z, irq;
+        u32 payload_index, payload_end_index, next_page_index;
+        int page, end_page, i, length, offset;
+
+        /*
+         * FIXME: Cycle lost behavior should be configurable: lose
+         * packet, retransmit or terminate..
+         */
+
+        p = packet;
+        payload_index = payload;
+
+        if (p->skip)
+                z = 1;
+        else
+                z = 2;
+        if (p->header_length > 0)
+                z++;
+
+        /* Determine the first page the payload isn't contained in. */
+        end_page = PAGE_ALIGN(payload_index + p->payload_length) >> PAGE_SHIFT;
+        if (p->payload_length > 0)
+                payload_z = end_page - (payload_index >> PAGE_SHIFT);
+        else
+                payload_z = 0;
+
+        z += payload_z;
+
+        /* Get header size in number of descriptors. */
+        header_z = DIV_ROUND_UP(p->header_length, sizeof(*d));
+
+        d = context_get_descriptors(&ctx->context, z + header_z, &d_bus);
+        if (d == NULL)
+                return -ENOMEM;
+
+        if (!p->skip) {
+                d[0].control   = cpu_to_le16(DESCRIPTOR_KEY_IMMEDIATE);
+                d[0].req_count = cpu_to_le16(8);
+
+                header = (__le32 *) &d[1];
+                header[0] = cpu_to_le32(IT_HEADER_SY(p->sy) |
+                                        IT_HEADER_TAG(p->tag) |
+                                        IT_HEADER_TCODE(TCODE_STREAM_DATA) |
+                                        IT_HEADER_CHANNEL(ctx->base.channel) |
+                                        IT_HEADER_SPEED(ctx->base.speed));
+                header[1] =
+                        cpu_to_le32(IT_HEADER_DATA_LENGTH(p->header_length +
+                                                          p->payload_length));
+        }
+
+        if (p->header_length > 0) {
+                d[2].req_count    = cpu_to_le16(p->header_length);
+                d[2].data_address = cpu_to_le32(d_bus + z * sizeof(*d));
+                memcpy(&d[z], p->header, p->header_length);
+        }
+
+        pd = d + z - payload_z;
+        payload_end_index = payload_index + p->payload_length;
+        for (i = 0; i < payload_z; i++) {
+                page               = payload_index >> PAGE_SHIFT;
+                offset             = payload_index & ~PAGE_MASK;
+                next_page_index    = (page + 1) << PAGE_SHIFT;
+                length             =
+                        min(next_page_index, payload_end_index) - payload_index;
+                pd[i].req_count    = cpu_to_le16(length);
+
+                page_bus = page_private(buffer->pages[page]);
+                pd[i].data_address = cpu_to_le32(page_bus + offset);
+
+                payload_index += length;
+        }
+
+        if (p->interrupt)
+                irq = DESCRIPTOR_IRQ_ALWAYS;
+        else
+                irq = DESCRIPTOR_NO_IRQ;
+
+        last = z == 2 ? d : d + z - 1;
+        last->control |= cpu_to_le16(DESCRIPTOR_OUTPUT_LAST |
+                                     DESCRIPTOR_STATUS |
+                                     DESCRIPTOR_BRANCH_ALWAYS |
+                                     irq);
+
+        context_append(&ctx->context, d, z, header_z);
+
+        return 0;
+}
+
+static int
+ohci_queue_iso_receive_dualbuffer(struct fw_iso_context *base,
+                                  struct fw_iso_packet *packet,
+                                  struct fw_iso_buffer *buffer,
+                                  unsigned long payload)
+{
+        struct iso_context *ctx = container_of(base, struct iso_context, base);
+        struct db_descriptor *db = NULL;
+        struct descriptor *d;
+        struct fw_iso_packet *p;
+        dma_addr_t d_bus, page_bus;
+        u32 z, header_z, length, rest;
+        int page, offset, packet_count, header_size;
+
+        /*
+         * FIXME: Cycle lost behavior should be configurable: lose
+         * packet, retransmit or terminate..
+         */
+
+        if (packet->skip) {
+                d = context_get_descriptors(&ctx->context, 2, &d_bus);
+                if (d == NULL)
+                        return -ENOMEM;
+
+                db = (struct db_descriptor *) d;
+                db->control = cpu_to_le16(DESCRIPTOR_STATUS |
+                                          DESCRIPTOR_BRANCH_ALWAYS |
+                                          DESCRIPTOR_WAIT);
+                db->first_size = cpu_to_le16(ctx->base.header_size + 4);
+                context_append(&ctx->context, d, 2, 0);
+        }
+
+        p = packet;
+        z = 2;
+
+        /*
+         * The OHCI controller puts the status word in the header
+         * buffer too, so we need 4 extra bytes per packet.
+         */
+        packet_count = p->header_length / ctx->base.header_size;
+        header_size = packet_count * (ctx->base.header_size + 4);
+
+        /* Get header size in number of descriptors. */
+        header_z = DIV_ROUND_UP(header_size, sizeof(*d));
+        page     = payload >> PAGE_SHIFT;
+        offset   = payload & ~PAGE_MASK;
+        rest     = p->payload_length;
+
+        /* FIXME: OHCI 1.0 doesn't support dual buffer receive */
+        /* FIXME: make packet-per-buffer/dual-buffer a context option */
+        while (rest > 0) {
+                d = context_get_descriptors(&ctx->context,
+                                            z + header_z, &d_bus);
+                if (d == NULL)
+                        return -ENOMEM;
+
+                db = (struct db_descriptor *) d;
+                db->control = cpu_to_le16(DESCRIPTOR_STATUS |
+                                          DESCRIPTOR_BRANCH_ALWAYS);
+                db->first_size = cpu_to_le16(ctx->base.header_size + 4);
+                db->first_req_count = cpu_to_le16(header_size);
+                db->first_res_count = db->first_req_count;
+                db->first_buffer = cpu_to_le32(d_bus + sizeof(*db));
+
+                if (offset + rest < PAGE_SIZE)
+                        length = rest;
+                else
+                        length = PAGE_SIZE - offset;
+
+                db->second_req_count = cpu_to_le16(length);
+                db->second_res_count = db->second_req_count;
+                page_bus = page_private(buffer->pages[page]);
+                db->second_buffer = cpu_to_le32(page_bus + offset);
+
+                if (p->interrupt && length == rest)
+                        db->control |= cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS);
+
+                context_append(&ctx->context, d, z, header_z);
+                offset = (offset + length) & ~PAGE_MASK;
+                rest -= length;
+                page++;
+        }
+
+        return 0;
+}
+
+static int
+ohci_queue_iso(struct fw_iso_context *base,
+               struct fw_iso_packet *packet,
+               struct fw_iso_buffer *buffer,
+               unsigned long payload)
+{
+        struct iso_context *ctx = container_of(base, struct iso_context, base);
+
+        if (base->type == FW_ISO_CONTEXT_TRANSMIT)
+                return ohci_queue_iso_transmit(base, packet, buffer, payload);
+        else if (ctx->context.ohci->version >= OHCI_VERSION_1_1)
+                return ohci_queue_iso_receive_dualbuffer(base, packet,
+                                                         buffer, payload);
+        else
+                /* FIXME: Implement fallback for OHCI 1.0 controllers. */
+                return -EINVAL;
+}
+
+static const struct fw_card_driver ohci_driver = {
+        .name                   = ohci_driver_name,
+        .enable                 = ohci_enable,
+        .update_phy_reg         = ohci_update_phy_reg,
+        .set_config_rom         = ohci_set_config_rom,
+        .send_request           = ohci_send_request,
+        .send_response          = ohci_send_response,
+        .cancel_packet          = ohci_cancel_packet,
+        .enable_phys_dma        = ohci_enable_phys_dma,
+        .get_bus_time           = ohci_get_bus_time,
+
+        .allocate_iso_context   = ohci_allocate_iso_context,
+        .free_iso_context       = ohci_free_iso_context,
+        .queue_iso              = ohci_queue_iso,
+        .start_iso              = ohci_start_iso,
+        .stop_iso               = ohci_stop_iso,
+};
+
+static int software_reset(struct fw_ohci *ohci)
+{
+        int i;
+
+        reg_write(ohci, OHCI1394_HCControlSet, OHCI1394_HCControl_softReset);
+
+        for (i = 0; i < OHCI_LOOP_COUNT; i++) {
+                if ((reg_read(ohci, OHCI1394_HCControlSet) &
+                     OHCI1394_HCControl_softReset) == 0)
+                        return 0;
+                msleep(1);
+        }
+
+        return -EBUSY;
+}
+
+static int __devinit
+pci_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+{
+        struct fw_ohci *ohci;
+        u32 bus_options, max_receive, link_speed;
+        u64 guid;
+        int err;
+        size_t size;
+
+        ohci = kzalloc(sizeof(*ohci), GFP_KERNEL);
+        if (ohci == NULL) {
+                fw_error("Could not malloc fw_ohci data.\n");
+                return -ENOMEM;
+        }
+
+        fw_card_initialize(&ohci->card, &ohci_driver, &dev->dev);
+
+        err = pci_enable_device(dev);
+        if (err) {
+                fw_error("Failed to enable OHCI hardware.\n");
+                goto fail_put_card;
+        }
+
+        pci_set_master(dev);
+        pci_write_config_dword(dev, OHCI1394_PCI_HCI_Control, 0);
+        pci_set_drvdata(dev, ohci);
+
+        spin_lock_init(&ohci->lock);
+
+        tasklet_init(&ohci->bus_reset_tasklet,
+                     bus_reset_tasklet, (unsigned long)ohci);
+
+        err = pci_request_region(dev, 0, ohci_driver_name);
+        if (err) {
+                fw_error("MMIO resource unavailable\n");
+                goto fail_disable;
+        }
+
+        ohci->registers = pci_iomap(dev, 0, OHCI1394_REGISTER_SIZE);
+        if (ohci->registers == NULL) {
+                fw_error("Failed to remap registers\n");
+                err = -ENXIO;
+                goto fail_iomem;
+        }
+
+        if (software_reset(ohci)) {
+                fw_error("Failed to reset ohci card.\n");
+                err = -EBUSY;
+                goto fail_registers;
+        }
+
+        /*
+         * Now enable LPS, which we need in order to start accessing
+         * most of the registers.  In fact, on some cards (ALI M5251),
+         * accessing registers in the SClk domain without LPS enabled
+         * will lock up the machine.  Wait 50msec to make sure we have
+         * full link enabled.
+         */
+        reg_write(ohci, OHCI1394_HCControlSet,
+                  OHCI1394_HCControl_LPS |
+                  OHCI1394_HCControl_postedWriteEnable);
+        flush_writes(ohci);
+        msleep(50);
+
+        reg_write(ohci, OHCI1394_HCControlClear,
+                  OHCI1394_HCControl_noByteSwapData);
+
+        reg_write(ohci, OHCI1394_LinkControlSet,
+                  OHCI1394_LinkControl_rcvSelfID |
+                  OHCI1394_LinkControl_cycleTimerEnable |
+                  OHCI1394_LinkControl_cycleMaster);
+
+        ar_context_init(&ohci->ar_request_ctx, ohci,
+                        OHCI1394_AsReqRcvContextControlSet);
+
+        ar_context_init(&ohci->ar_response_ctx, ohci,
+                        OHCI1394_AsRspRcvContextControlSet);
+
+        context_init(&ohci->at_request_ctx, ohci, AT_BUFFER_SIZE,
+                     OHCI1394_AsReqTrContextControlSet, handle_at_packet);
+
+        context_init(&ohci->at_response_ctx, ohci, AT_BUFFER_SIZE,
+                     OHCI1394_AsRspTrContextControlSet, handle_at_packet);
+
+        reg_write(ohci, OHCI1394_ATRetries,
+                  OHCI1394_MAX_AT_REQ_RETRIES |
+                  (OHCI1394_MAX_AT_RESP_RETRIES << 4) |
+                  (OHCI1394_MAX_PHYS_RESP_RETRIES << 8));
+
+        reg_write(ohci, OHCI1394_IsoRecvIntMaskSet, ~0);
+        ohci->it_context_mask = reg_read(ohci, OHCI1394_IsoRecvIntMaskSet);
+        reg_write(ohci, OHCI1394_IsoRecvIntMaskClear, ~0);
+        size = sizeof(struct iso_context) * hweight32(ohci->it_context_mask);
+        ohci->it_context_list = kzalloc(size, GFP_KERNEL);
+
+        reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, ~0);
+        ohci->ir_context_mask = reg_read(ohci, OHCI1394_IsoXmitIntMaskSet);
+        reg_write(ohci, OHCI1394_IsoXmitIntMaskClear, ~0);
+        size = sizeof(struct iso_context) * hweight32(ohci->ir_context_mask);
+        ohci->ir_context_list = kzalloc(size, GFP_KERNEL);
+
+        if (ohci->it_context_list == NULL || ohci->ir_context_list == NULL) {
+                fw_error("Out of memory for it/ir contexts.\n");
+                err = -ENOMEM;
+                goto fail_registers;
+        }
+
+        /* self-id dma buffer allocation */
+        ohci->self_id_cpu = dma_alloc_coherent(ohci->card.device,
+                                               SELF_ID_BUF_SIZE,
+                                               &ohci->self_id_bus,
+                                               GFP_KERNEL);
+        if (ohci->self_id_cpu == NULL) {
+                fw_error("Out of memory for self ID buffer.\n");
+                err = -ENOMEM;
+                goto fail_registers;
+        }
+
+        reg_write(ohci, OHCI1394_SelfIDBuffer, ohci->self_id_bus);
+        reg_write(ohci, OHCI1394_PhyUpperBound, 0x00010000);
+        reg_write(ohci, OHCI1394_IntEventClear, ~0);
+        reg_write(ohci, OHCI1394_IntMaskClear, ~0);
+        reg_write(ohci, OHCI1394_IntMaskSet,
+                  OHCI1394_selfIDComplete |
+                  OHCI1394_RQPkt | OHCI1394_RSPkt |
+                  OHCI1394_reqTxComplete | OHCI1394_respTxComplete |
+                  OHCI1394_isochRx | OHCI1394_isochTx |
+                  OHCI1394_masterIntEnable |
+                  OHCI1394_cycle64Seconds);
+
+        bus_options = reg_read(ohci, OHCI1394_BusOptions);
+        max_receive = (bus_options >> 12) & 0xf;
+        link_speed = bus_options & 0x7;
+        guid = ((u64) reg_read(ohci, OHCI1394_GUIDHi) << 32) |
+                reg_read(ohci, OHCI1394_GUIDLo);
+
+        err = fw_card_add(&ohci->card, max_receive, link_speed, guid);
+        if (err < 0)
+                goto fail_self_id;
+
+        ohci->version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff;
+        fw_notify("Added fw-ohci device %s, OHCI version %x.%x\n",
+                  dev->dev.bus_id, ohci->version >> 16, ohci->version & 0xff);
+
+        return 0;
+
+ fail_self_id:
+        dma_free_coherent(ohci->card.device, SELF_ID_BUF_SIZE,
+                          ohci->self_id_cpu, ohci->self_id_bus);
+ fail_registers:
+        kfree(ohci->it_context_list);
+        kfree(ohci->ir_context_list);
+        pci_iounmap(dev, ohci->registers);
+ fail_iomem:
+        pci_release_region(dev, 0);
+ fail_disable:
+        pci_disable_device(dev);
+ fail_put_card:
+        fw_card_put(&ohci->card);
+
+        return err;
+}
+
+static void pci_remove(struct pci_dev *dev)
+{
+        struct fw_ohci *ohci;
+
+        ohci = pci_get_drvdata(dev);
+        reg_write(ohci, OHCI1394_IntMaskClear, ~0);
+        flush_writes(ohci);
+        fw_core_remove_card(&ohci->card);
+
+        /*
+         * FIXME: Fail all pending packets here, now that the upper
+         * layers can't queue any more.
+         */
+
+        software_reset(ohci);
+        free_irq(dev->irq, ohci);
+        dma_free_coherent(ohci->card.device, SELF_ID_BUF_SIZE,
+                          ohci->self_id_cpu, ohci->self_id_bus);
+        kfree(ohci->it_context_list);
+        kfree(ohci->ir_context_list);
+        pci_iounmap(dev, ohci->registers);
+        pci_release_region(dev, 0);
+        pci_disable_device(dev);
+        fw_card_put(&ohci->card);
+
+        fw_notify("Removed fw-ohci device.\n");
+}
+
+static struct pci_device_id pci_table[] = {
+        { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_FIREWIRE_OHCI, ~0) },
+        { }
+};
+
+MODULE_DEVICE_TABLE(pci, pci_table);
+
+static struct pci_driver fw_ohci_pci_driver = {
+        .name           = ohci_driver_name,
+        .id_table       = pci_table,
+        .probe          = pci_probe,
+        .remove         = pci_remove,
+};
+
+MODULE_AUTHOR("Kristian Hoegsberg <krh@bitplanet.net>");
+MODULE_DESCRIPTION("Driver for PCI OHCI IEEE1394 controllers");
+MODULE_LICENSE("GPL");
+
+/* Provide a module alias so root-on-sbp2 initrds don't break. */
+#ifndef CONFIG_IEEE1394_OHCI1394_MODULE
+MODULE_ALIAS("ohci1394");
+#endif
+
+static int __init fw_ohci_init(void)
+{
+        return pci_register_driver(&fw_ohci_pci_driver);
+}
+
+static void __exit fw_ohci_cleanup(void)
+{
+        pci_unregister_driver(&fw_ohci_pci_driver);
+}
+
+module_init(fw_ohci_init);
+module_exit(fw_ohci_cleanup);
diff --git a/drivers/firewire/fw-ohci.h b/drivers/firewire/fw-ohci.h
new file mode 100644
index 000000000000..fa15706397d7
--- /dev/null
+++ b/drivers/firewire/fw-ohci.h
@@ -0,0 +1,153 @@
+#ifndef __fw_ohci_h
+#define __fw_ohci_h
+
+/* OHCI register map */
+
+#define OHCI1394_Version                      0x000
+#define OHCI1394_GUID_ROM                     0x004
+#define OHCI1394_ATRetries                    0x008
+#define OHCI1394_CSRData                      0x00C
+#define OHCI1394_CSRCompareData               0x010
+#define OHCI1394_CSRControl                   0x014
+#define OHCI1394_ConfigROMhdr                 0x018
+#define OHCI1394_BusID                        0x01C
+#define OHCI1394_BusOptions                   0x020
+#define OHCI1394_GUIDHi                       0x024
+#define OHCI1394_GUIDLo                       0x028
+#define OHCI1394_ConfigROMmap                 0x034
+#define OHCI1394_PostedWriteAddressLo         0x038
+#define OHCI1394_PostedWriteAddressHi         0x03C
+#define OHCI1394_VendorID                     0x040
+#define OHCI1394_HCControlSet                 0x050
+#define OHCI1394_HCControlClear               0x054
+#define  OHCI1394_HCControl_BIBimageValid       0x80000000
+#define  OHCI1394_HCControl_noByteSwapData      0x40000000
+#define  OHCI1394_HCControl_programPhyEnable    0x00800000
+#define  OHCI1394_HCControl_aPhyEnhanceEnable   0x00400000
+#define  OHCI1394_HCControl_LPS                 0x00080000
+#define  OHCI1394_HCControl_postedWriteEnable   0x00040000
+#define  OHCI1394_HCControl_linkEnable          0x00020000
+#define  OHCI1394_HCControl_softReset           0x00010000
+#define OHCI1394_SelfIDBuffer                 0x064
+#define OHCI1394_SelfIDCount                  0x068
+#define OHCI1394_IRMultiChanMaskHiSet         0x070
+#define OHCI1394_IRMultiChanMaskHiClear       0x074
+#define OHCI1394_IRMultiChanMaskLoSet         0x078
+#define OHCI1394_IRMultiChanMaskLoClear       0x07C
+#define OHCI1394_IntEventSet                  0x080
+#define OHCI1394_IntEventClear                0x084
+#define OHCI1394_IntMaskSet                   0x088
+#define OHCI1394_IntMaskClear                 0x08C
+#define OHCI1394_IsoXmitIntEventSet           0x090
+#define OHCI1394_IsoXmitIntEventClear         0x094
+#define OHCI1394_IsoXmitIntMaskSet            0x098
+#define OHCI1394_IsoXmitIntMaskClear          0x09C
+#define OHCI1394_IsoRecvIntEventSet           0x0A0
+#define OHCI1394_IsoRecvIntEventClear         0x0A4
+#define OHCI1394_IsoRecvIntMaskSet            0x0A8
+#define OHCI1394_IsoRecvIntMaskClear          0x0AC
+#define OHCI1394_InitialBandwidthAvailable    0x0B0
+#define OHCI1394_InitialChannelsAvailableHi   0x0B4
+#define OHCI1394_InitialChannelsAvailableLo   0x0B8
+#define OHCI1394_FairnessControl              0x0DC
+#define OHCI1394_LinkControlSet               0x0E0
+#define OHCI1394_LinkControlClear             0x0E4
+#define   OHCI1394_LinkControl_rcvSelfID        (1 << 9)
+#define   OHCI1394_LinkControl_rcvPhyPkt        (1 << 10)
+#define   OHCI1394_LinkControl_cycleTimerEnable (1 << 20)
+#define   OHCI1394_LinkControl_cycleMaster      (1 << 21)
+#define   OHCI1394_LinkControl_cycleSource      (1 << 22)
+#define OHCI1394_NodeID                       0x0E8
+#define   OHCI1394_NodeID_idValid             0x80000000
+#define OHCI1394_PhyControl                   0x0EC
+#define   OHCI1394_PhyControl_Read(addr)        (((addr) << 8) | 0x00008000)
+#define   OHCI1394_PhyControl_ReadDone          0x80000000
+#define   OHCI1394_PhyControl_ReadData(r)       (((r) & 0x00ff0000) >> 16)
+#define   OHCI1394_PhyControl_Write(addr, data) (((addr) << 8) | (data) | 0x00004000)
+#define   OHCI1394_PhyControl_WriteDone         0x00004000
+#define OHCI1394_IsochronousCycleTimer        0x0F0
+#define OHCI1394_AsReqFilterHiSet             0x100
+#define OHCI1394_AsReqFilterHiClear           0x104
+#define OHCI1394_AsReqFilterLoSet             0x108
+#define OHCI1394_AsReqFilterLoClear           0x10C
+#define OHCI1394_PhyReqFilterHiSet            0x110
+#define OHCI1394_PhyReqFilterHiClear          0x114
+#define OHCI1394_PhyReqFilterLoSet            0x118
+#define OHCI1394_PhyReqFilterLoClear          0x11C
+#define OHCI1394_PhyUpperBound                0x120
+
+#define OHCI1394_AsReqTrContextBase           0x180
+#define OHCI1394_AsReqTrContextControlSet     0x180
+#define OHCI1394_AsReqTrContextControlClear   0x184
+#define OHCI1394_AsReqTrCommandPtr            0x18C
+
+#define OHCI1394_AsRspTrContextBase           0x1A0
+#define OHCI1394_AsRspTrContextControlSet     0x1A0
+#define OHCI1394_AsRspTrContextControlClear   0x1A4
+#define OHCI1394_AsRspTrCommandPtr            0x1AC
+
+#define OHCI1394_AsReqRcvContextBase          0x1C0
+#define OHCI1394_AsReqRcvContextControlSet    0x1C0
+#define OHCI1394_AsReqRcvContextControlClear  0x1C4
+#define OHCI1394_AsReqRcvCommandPtr           0x1CC
+
+#define OHCI1394_AsRspRcvContextBase          0x1E0
+#define OHCI1394_AsRspRcvContextControlSet    0x1E0
+#define OHCI1394_AsRspRcvContextControlClear  0x1E4
+#define OHCI1394_AsRspRcvCommandPtr           0x1EC
+
+/* Isochronous transmit registers */
+#define OHCI1394_IsoXmitContextBase(n)           (0x200 + 16 * (n))
+#define OHCI1394_IsoXmitContextControlSet(n)     (0x200 + 16 * (n))
+#define OHCI1394_IsoXmitContextControlClear(n)   (0x204 + 16 * (n))
+#define OHCI1394_IsoXmitCommandPtr(n)            (0x20C + 16 * (n))
+
+/* Isochronous receive registers */
+#define OHCI1394_IsoRcvContextBase(n)         (0x400 + 32 * (n))
+#define OHCI1394_IsoRcvContextControlSet(n)   (0x400 + 32 * (n))
+#define OHCI1394_IsoRcvContextControlClear(n) (0x404 + 32 * (n))
+#define OHCI1394_IsoRcvCommandPtr(n)          (0x40C + 32 * (n))
+#define OHCI1394_IsoRcvContextMatch(n)        (0x410 + 32 * (n))
+
+/* Interrupts Mask/Events */
+#define OHCI1394_reqTxComplete          0x00000001
+#define OHCI1394_respTxComplete         0x00000002
+#define OHCI1394_ARRQ                   0x00000004
+#define OHCI1394_ARRS                   0x00000008
+#define OHCI1394_RQPkt                  0x00000010
+#define OHCI1394_RSPkt                  0x00000020
+#define OHCI1394_isochTx                0x00000040
+#define OHCI1394_isochRx                0x00000080
+#define OHCI1394_postedWriteErr         0x00000100
+#define OHCI1394_lockRespErr            0x00000200
+#define OHCI1394_selfIDComplete         0x00010000
+#define OHCI1394_busReset               0x00020000
+#define OHCI1394_phy                    0x00080000
+#define OHCI1394_cycleSynch             0x00100000
+#define OHCI1394_cycle64Seconds         0x00200000
+#define OHCI1394_cycleLost              0x00400000
+#define OHCI1394_cycleInconsistent      0x00800000
+#define OHCI1394_unrecoverableError     0x01000000
+#define OHCI1394_cycleTooLong           0x02000000
+#define OHCI1394_phyRegRcvd             0x04000000
+#define OHCI1394_masterIntEnable        0x80000000
+
+#define OHCI1394_evt_no_status          0x0
+#define OHCI1394_evt_long_packet        0x2
+#define OHCI1394_evt_missing_ack        0x3
+#define OHCI1394_evt_underrun           0x4
+#define OHCI1394_evt_overrun            0x5
+#define OHCI1394_evt_descriptor_read    0x6
+#define OHCI1394_evt_data_read          0x7
+#define OHCI1394_evt_data_write         0x8
+#define OHCI1394_evt_bus_reset          0x9
+#define OHCI1394_evt_timeout            0xa
+#define OHCI1394_evt_tcode_err          0xb
+#define OHCI1394_evt_reserved_b         0xc
+#define OHCI1394_evt_reserved_c         0xd
+#define OHCI1394_evt_unknown            0xe
+#define OHCI1394_evt_flushed            0xf
+
+#define OHCI1394_phy_tcode              0xe
+
+#endif /* __fw_ohci_h */
diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c
new file mode 100644
index 000000000000..68300414e5f4
--- /dev/null
+++ b/drivers/firewire/fw-sbp2.c
@@ -0,0 +1,1147 @@
+/*
+ * SBP2 driver (SCSI over IEEE1394)
+ *
+ * Copyright (C) 2005-2007  Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * The basic structure of this driver is based on the old storage driver,
+ * drivers/ieee1394/sbp2.c, originally written by
+ *     James Goodwin <jamesg@filanet.com>
+ * with later contributions and ongoing maintenance from
+ *     Ben Collins <bcollins@debian.org>,
+ *     Stefan Richter <stefanr@s5r6.in-berlin.de>
+ * and many others.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/device.h>
+#include <linux/scatterlist.h>
+#include <linux/dma-mapping.h>
+#include <linux/timer.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_dbg.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+
+#include "fw-transaction.h"
+#include "fw-topology.h"
+#include "fw-device.h"
+
+/* I don't know why the SCSI stack doesn't define something like this... */
+typedef void (*scsi_done_fn_t)(struct scsi_cmnd *);
+
+static const char sbp2_driver_name[] = "sbp2";
+
+struct sbp2_device {
+        struct kref kref;
+        struct fw_unit *unit;
+        struct fw_address_handler address_handler;
+        struct list_head orb_list;
+        u64 management_agent_address;
+        u64 command_block_agent_address;
+        u32 workarounds;
+        int login_id;
+
+        /*
+         * We cache these addresses and only update them once we've
+         * logged in or reconnected to the sbp2 device.  That way, any
+         * IO to the device will automatically fail and get retried if
+         * it happens in a window where the device is not ready to
+         * handle it (e.g. after a bus reset but before we reconnect).
+         */
+        int node_id;
+        int address_high;
+        int generation;
+
+        int retries;
+        struct delayed_work work;
+};
+
+#define SBP2_MAX_SG_ELEMENT_LENGTH      0xf000
+#define SBP2_MAX_SECTORS                255     /* Max sectors supported */
+#define SBP2_ORB_TIMEOUT                2000    /* Timeout in ms */
+
+#define SBP2_ORB_NULL                   0x80000000
+
+#define SBP2_DIRECTION_TO_MEDIA         0x0
+#define SBP2_DIRECTION_FROM_MEDIA       0x1
+
+/* Unit directory keys */
+#define SBP2_COMMAND_SET_SPECIFIER      0x38
+#define SBP2_COMMAND_SET                0x39
+#define SBP2_COMMAND_SET_REVISION       0x3b
+#define SBP2_FIRMWARE_REVISION          0x3c
+
+/* Flags for detected oddities and brokeness */
+#define SBP2_WORKAROUND_128K_MAX_TRANS  0x1
+#define SBP2_WORKAROUND_INQUIRY_36      0x2
+#define SBP2_WORKAROUND_MODE_SENSE_8    0x4
+#define SBP2_WORKAROUND_FIX_CAPACITY    0x8
+#define SBP2_WORKAROUND_OVERRIDE        0x100
+
+/* Management orb opcodes */
+#define SBP2_LOGIN_REQUEST              0x0
+#define SBP2_QUERY_LOGINS_REQUEST       0x1
+#define SBP2_RECONNECT_REQUEST          0x3
+#define SBP2_SET_PASSWORD_REQUEST       0x4
+#define SBP2_LOGOUT_REQUEST             0x7
+#define SBP2_ABORT_TASK_REQUEST         0xb
+#define SBP2_ABORT_TASK_SET             0xc
+#define SBP2_LOGICAL_UNIT_RESET         0xe
+#define SBP2_TARGET_RESET_REQUEST       0xf
+
+/* Offsets for command block agent registers */
+#define SBP2_AGENT_STATE                0x00
+#define SBP2_AGENT_RESET                0x04
+#define SBP2_ORB_POINTER                0x08
+#define SBP2_DOORBELL                   0x10
+#define SBP2_UNSOLICITED_STATUS_ENABLE  0x14
+
+/* Status write response codes */
+#define SBP2_STATUS_REQUEST_COMPLETE    0x0
+#define SBP2_STATUS_TRANSPORT_FAILURE   0x1
+#define SBP2_STATUS_ILLEGAL_REQUEST     0x2
+#define SBP2_STATUS_VENDOR_DEPENDENT    0x3
+
+#define STATUS_GET_ORB_HIGH(v)          ((v).status & 0xffff)
+#define STATUS_GET_SBP_STATUS(v)        (((v).status >> 16) & 0xff)
+#define STATUS_GET_LEN(v)               (((v).status >> 24) & 0x07)
+#define STATUS_GET_DEAD(v)              (((v).status >> 27) & 0x01)
+#define STATUS_GET_RESPONSE(v)          (((v).status >> 28) & 0x03)
+#define STATUS_GET_SOURCE(v)            (((v).status >> 30) & 0x03)
+#define STATUS_GET_ORB_LOW(v)           ((v).orb_low)
+#define STATUS_GET_DATA(v)              ((v).data)
+
+struct sbp2_status {
+        u32 status;
+        u32 orb_low;
+        u8 data[24];
+};
+
+struct sbp2_pointer {
+        u32 high;
+        u32 low;
+};
+
+struct sbp2_orb {
+        struct fw_transaction t;
+        dma_addr_t request_bus;
+        int rcode;
+        struct sbp2_pointer pointer;
+        void (*callback)(struct sbp2_orb * orb, struct sbp2_status * status);
+        struct list_head link;
+};
+
+#define MANAGEMENT_ORB_LUN(v)                   ((v))
+#define MANAGEMENT_ORB_FUNCTION(v)              ((v) << 16)
+#define MANAGEMENT_ORB_RECONNECT(v)             ((v) << 20)
+#define MANAGEMENT_ORB_EXCLUSIVE                ((1) << 28)
+#define MANAGEMENT_ORB_REQUEST_FORMAT(v)        ((v) << 29)
+#define MANAGEMENT_ORB_NOTIFY                   ((1) << 31)
+
+#define MANAGEMENT_ORB_RESPONSE_LENGTH(v)       ((v))
+#define MANAGEMENT_ORB_PASSWORD_LENGTH(v)       ((v) << 16)
+
+struct sbp2_management_orb {
+        struct sbp2_orb base;
+        struct {
+                struct sbp2_pointer password;
+                struct sbp2_pointer response;
+                u32 misc;
+                u32 length;
+                struct sbp2_pointer status_fifo;
+        } request;
+        __be32 response[4];
+        dma_addr_t response_bus;
+        struct completion done;
+        struct sbp2_status status;
+};
+
+#define LOGIN_RESPONSE_GET_LOGIN_ID(v)  ((v).misc & 0xffff)
+#define LOGIN_RESPONSE_GET_LENGTH(v)    (((v).misc >> 16) & 0xffff)
+
+struct sbp2_login_response {
+        u32 misc;
+        struct sbp2_pointer command_block_agent;
+        u32 reconnect_hold;
+};
+#define COMMAND_ORB_DATA_SIZE(v)        ((v))
+#define COMMAND_ORB_PAGE_SIZE(v)        ((v) << 16)
+#define COMMAND_ORB_PAGE_TABLE_PRESENT  ((1) << 19)
+#define COMMAND_ORB_MAX_PAYLOAD(v)      ((v) << 20)
+#define COMMAND_ORB_SPEED(v)            ((v) << 24)
+#define COMMAND_ORB_DIRECTION(v)        ((v) << 27)
+#define COMMAND_ORB_REQUEST_FORMAT(v)   ((v) << 29)
+#define COMMAND_ORB_NOTIFY              ((1) << 31)
+
+struct sbp2_command_orb {
+        struct sbp2_orb base;
+        struct {
+                struct sbp2_pointer next;
+                struct sbp2_pointer data_descriptor;
+                u32 misc;
+                u8 command_block[12];
+        } request;
+        struct scsi_cmnd *cmd;
+        scsi_done_fn_t done;
+        struct fw_unit *unit;
+
+        struct sbp2_pointer page_table[SG_ALL];
+        dma_addr_t page_table_bus;
+        dma_addr_t request_buffer_bus;
+};
+
+/*
+ * List of devices with known bugs.
+ *
+ * The firmware_revision field, masked with 0xffff00, is the best
+ * indicator for the type of bridge chip of a device.  It yields a few
+ * false positives but this did not break correctly behaving devices
+ * so far.  We use ~0 as a wildcard, since the 24 bit values we get
+ * from the config rom can never match that.
+ */
+static const struct {
+        u32 firmware_revision;
+        u32 model;
+        unsigned workarounds;
+} sbp2_workarounds_table[] = {
+        /* DViCO Momobay CX-1 with TSB42AA9 bridge */ {
+                .firmware_revision      = 0x002800,
+                .model                  = 0x001010,
+                .workarounds            = SBP2_WORKAROUND_INQUIRY_36 |
+                                          SBP2_WORKAROUND_MODE_SENSE_8,
+        },
+        /* Initio bridges, actually only needed for some older ones */ {
+                .firmware_revision      = 0x000200,
+                .model                  = ~0,
+                .workarounds            = SBP2_WORKAROUND_INQUIRY_36,
+        },
+        /* Symbios bridge */ {
+                .firmware_revision      = 0xa0b800,
+                .model                  = ~0,
+                .workarounds            = SBP2_WORKAROUND_128K_MAX_TRANS,
+        },
+
+        /*
+         * There are iPods (2nd gen, 3rd gen) with model_id == 0, but
+         * these iPods do not feature the read_capacity bug according
+         * to one report.  Read_capacity behaviour as well as model_id
+         * could change due to Apple-supplied firmware updates though.
+         */
+
+        /* iPod 4th generation. */ {
+                .firmware_revision      = 0x0a2700,
+                .model                  = 0x000021,
+                .workarounds            = SBP2_WORKAROUND_FIX_CAPACITY,
+        },
+        /* iPod mini */ {
+                .firmware_revision      = 0x0a2700,
+                .model                  = 0x000023,
+                .workarounds            = SBP2_WORKAROUND_FIX_CAPACITY,
+        },
+        /* iPod Photo */ {
+                .firmware_revision      = 0x0a2700,
+                .model                  = 0x00007e,
+                .workarounds            = SBP2_WORKAROUND_FIX_CAPACITY,
+        }
+};
+
+static void
+sbp2_status_write(struct fw_card *card, struct fw_request *request,
+                  int tcode, int destination, int source,
+                  int generation, int speed,
+                  unsigned long long offset,
+                  void *payload, size_t length, void *callback_data)
+{
+        struct sbp2_device *sd = callback_data;
+        struct sbp2_orb *orb;
+        struct sbp2_status status;
+        size_t header_size;
+        unsigned long flags;
+
+        if (tcode != TCODE_WRITE_BLOCK_REQUEST ||
+            length == 0 || length > sizeof(status)) {
+                fw_send_response(card, request, RCODE_TYPE_ERROR);
+                return;
+        }
+
+        header_size = min(length, 2 * sizeof(u32));
+        fw_memcpy_from_be32(&status, payload, header_size);
+        if (length > header_size)
+                memcpy(status.data, payload + 8, length - header_size);
+        if (STATUS_GET_SOURCE(status) == 2 || STATUS_GET_SOURCE(status) == 3) {
+                fw_notify("non-orb related status write, not handled\n");
+                fw_send_response(card, request, RCODE_COMPLETE);
+                return;
+        }
+
+        /* Lookup the orb corresponding to this status write. */
+        spin_lock_irqsave(&card->lock, flags);
+        list_for_each_entry(orb, &sd->orb_list, link) {
+                if (STATUS_GET_ORB_HIGH(status) == 0 &&
+                    STATUS_GET_ORB_LOW(status) == orb->request_bus &&
+                    orb->rcode == RCODE_COMPLETE) {
+                        list_del(&orb->link);
+                        break;
+                }
+        }
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        if (&orb->link != &sd->orb_list)
+                orb->callback(orb, &status);
+        else
+                fw_error("status write for unknown orb\n");
+
+        fw_send_response(card, request, RCODE_COMPLETE);
+}
+
+static void
+complete_transaction(struct fw_card *card, int rcode,
+                     void *payload, size_t length, void *data)
+{
+        struct sbp2_orb *orb = data;
+        unsigned long flags;
+
+        orb->rcode = rcode;
+        if (rcode != RCODE_COMPLETE) {
+                spin_lock_irqsave(&card->lock, flags);
+                list_del(&orb->link);
+                spin_unlock_irqrestore(&card->lock, flags);
+                orb->callback(orb, NULL);
+        }
+}
+
+static void
+sbp2_send_orb(struct sbp2_orb *orb, struct fw_unit *unit,
+              int node_id, int generation, u64 offset)
+{
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct sbp2_device *sd = unit->device.driver_data;
+        unsigned long flags;
+
+        orb->pointer.high = 0;
+        orb->pointer.low = orb->request_bus;
+        fw_memcpy_to_be32(&orb->pointer, &orb->pointer, sizeof(orb->pointer));
+
+        spin_lock_irqsave(&device->card->lock, flags);
+        list_add_tail(&orb->link, &sd->orb_list);
+        spin_unlock_irqrestore(&device->card->lock, flags);
+
+        fw_send_request(device->card, &orb->t, TCODE_WRITE_BLOCK_REQUEST,
+                        node_id, generation,
+                        device->node->max_speed, offset,
+                        &orb->pointer, sizeof(orb->pointer),
+                        complete_transaction, orb);
+}
+
+static int sbp2_cancel_orbs(struct fw_unit *unit)
+{
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct sbp2_device *sd = unit->device.driver_data;
+        struct sbp2_orb *orb, *next;
+        struct list_head list;
+        unsigned long flags;
+        int retval = -ENOENT;
+
+        INIT_LIST_HEAD(&list);
+        spin_lock_irqsave(&device->card->lock, flags);
+        list_splice_init(&sd->orb_list, &list);
+        spin_unlock_irqrestore(&device->card->lock, flags);
+
+        list_for_each_entry_safe(orb, next, &list, link) {
+                retval = 0;
+                if (fw_cancel_transaction(device->card, &orb->t) == 0)
+                        continue;
+
+                orb->rcode = RCODE_CANCELLED;
+                orb->callback(orb, NULL);
+        }
+
+        return retval;
+}
+
+static void
+complete_management_orb(struct sbp2_orb *base_orb, struct sbp2_status *status)
+{
+        struct sbp2_management_orb *orb =
+            (struct sbp2_management_orb *)base_orb;
+
+        if (status)
+                memcpy(&orb->status, status, sizeof(*status));
+        complete(&orb->done);
+}
+
+static int
+sbp2_send_management_orb(struct fw_unit *unit, int node_id, int generation,
+                         int function, int lun, void *response)
+{
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct sbp2_device *sd = unit->device.driver_data;
+        struct sbp2_management_orb *orb;
+        int retval = -ENOMEM;
+
+        orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
+        if (orb == NULL)
+                return -ENOMEM;
+
+        /*
+         * The sbp2 device is going to send a block read request to
+         * read out the request from host memory, so map it for dma.
+         */
+        orb->base.request_bus =
+                dma_map_single(device->card->device, &orb->request,
+                               sizeof(orb->request), DMA_TO_DEVICE);
+        if (dma_mapping_error(orb->base.request_bus))
+                goto out;
+
+        orb->response_bus =
+                dma_map_single(device->card->device, &orb->response,
+                               sizeof(orb->response), DMA_FROM_DEVICE);
+        if (dma_mapping_error(orb->response_bus))
+                goto out;
+
+        orb->request.response.high    = 0;
+        orb->request.response.low     = orb->response_bus;
+
+        orb->request.misc =
+                MANAGEMENT_ORB_NOTIFY |
+                MANAGEMENT_ORB_FUNCTION(function) |
+                MANAGEMENT_ORB_LUN(lun);
+        orb->request.length =
+                MANAGEMENT_ORB_RESPONSE_LENGTH(sizeof(orb->response));
+
+        orb->request.status_fifo.high = sd->address_handler.offset >> 32;
+        orb->request.status_fifo.low  = sd->address_handler.offset;
+
+        /*
+         * FIXME: Yeah, ok this isn't elegant, we hardwire exclusive
+         * login and 1 second reconnect time.  The reconnect setting
+         * is probably fine, but the exclusive login should be an option.
+         */
+        if (function == SBP2_LOGIN_REQUEST) {
+                orb->request.misc |=
+                        MANAGEMENT_ORB_EXCLUSIVE |
+                        MANAGEMENT_ORB_RECONNECT(0);
+        }
+
+        fw_memcpy_to_be32(&orb->request, &orb->request, sizeof(orb->request));
+
+        init_completion(&orb->done);
+        orb->base.callback = complete_management_orb;
+
+        sbp2_send_orb(&orb->base, unit,
+                      node_id, generation, sd->management_agent_address);
+
+        wait_for_completion_timeout(&orb->done,
+                                    msecs_to_jiffies(SBP2_ORB_TIMEOUT));
+
+        retval = -EIO;
+        if (sbp2_cancel_orbs(unit) == 0) {
+                fw_error("orb reply timed out, rcode=0x%02x\n",
+                         orb->base.rcode);
+                goto out;
+        }
+
+        if (orb->base.rcode != RCODE_COMPLETE) {
+                fw_error("management write failed, rcode 0x%02x\n",
+                         orb->base.rcode);
+                goto out;
+        }
+
+        if (STATUS_GET_RESPONSE(orb->status) != 0 ||
+            STATUS_GET_SBP_STATUS(orb->status) != 0) {
+                fw_error("error status: %d:%d\n",
+                         STATUS_GET_RESPONSE(orb->status),
+                         STATUS_GET_SBP_STATUS(orb->status));
+                goto out;
+        }
+
+        retval = 0;
+ out:
+        dma_unmap_single(device->card->device, orb->base.request_bus,
+                         sizeof(orb->request), DMA_TO_DEVICE);
+        dma_unmap_single(device->card->device, orb->response_bus,
+                         sizeof(orb->response), DMA_FROM_DEVICE);
+
+        if (response)
+                fw_memcpy_from_be32(response,
+                                    orb->response, sizeof(orb->response));
+        kfree(orb);
+
+        return retval;
+}
+
+static void
+complete_agent_reset_write(struct fw_card *card, int rcode,
+                           void *payload, size_t length, void *data)
+{
+        struct fw_transaction *t = data;
+
+        kfree(t);
+}
+
+static int sbp2_agent_reset(struct fw_unit *unit)
+{
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct sbp2_device *sd = unit->device.driver_data;
+        struct fw_transaction *t;
+        static u32 zero;
+
+        t = kzalloc(sizeof(*t), GFP_ATOMIC);
+        if (t == NULL)
+                return -ENOMEM;
+
+        fw_send_request(device->card, t, TCODE_WRITE_QUADLET_REQUEST,
+                        sd->node_id, sd->generation, SCODE_400,
+                        sd->command_block_agent_address + SBP2_AGENT_RESET,
+                        &zero, sizeof(zero), complete_agent_reset_write, t);
+
+        return 0;
+}
+
+static void sbp2_reconnect(struct work_struct *work);
+static struct scsi_host_template scsi_driver_template;
+
+static void
+release_sbp2_device(struct kref *kref)
+{
+        struct sbp2_device *sd = container_of(kref, struct sbp2_device, kref);
+        struct Scsi_Host *host =
+                container_of((void *)sd, struct Scsi_Host, hostdata[0]);
+
+        sbp2_send_management_orb(sd->unit, sd->node_id, sd->generation,
+                                 SBP2_LOGOUT_REQUEST, sd->login_id, NULL);
+
+        scsi_remove_host(host);
+        fw_core_remove_address_handler(&sd->address_handler);
+        fw_notify("removed sbp2 unit %s\n", sd->unit->device.bus_id);
+        put_device(&sd->unit->device);
+        scsi_host_put(host);
+}
+
+static void sbp2_login(struct work_struct *work)
+{
+        struct sbp2_device *sd =
+                container_of(work, struct sbp2_device, work.work);
+        struct Scsi_Host *host =
+                container_of((void *)sd, struct Scsi_Host, hostdata[0]);
+        struct fw_unit *unit = sd->unit;
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct sbp2_login_response response;
+        int generation, node_id, local_node_id, lun, retval;
+
+        /* FIXME: Make this work for multi-lun devices. */
+        lun = 0;
+
+        generation    = device->card->generation;
+        node_id       = device->node->node_id;
+        local_node_id = device->card->local_node->node_id;
+
+        if (sbp2_send_management_orb(unit, node_id, generation,
+                                     SBP2_LOGIN_REQUEST, lun, &response) < 0) {
+                if (sd->retries++ < 5) {
+                        schedule_delayed_work(&sd->work, DIV_ROUND_UP(HZ, 5));
+                } else {
+                        fw_error("failed to login to %s\n",
+                                 unit->device.bus_id);
+                        kref_put(&sd->kref, release_sbp2_device);
+                }
+                return;
+        }
+
+        sd->generation   = generation;
+        sd->node_id      = node_id;
+        sd->address_high = local_node_id << 16;
+
+        /* Get command block agent offset and login id. */
+        sd->command_block_agent_address =
+                ((u64) (response.command_block_agent.high & 0xffff) << 32) |
+                response.command_block_agent.low;
+        sd->login_id = LOGIN_RESPONSE_GET_LOGIN_ID(response);
+
+        fw_notify("logged in to sbp2 unit %s (%d retries)\n",
+                  unit->device.bus_id, sd->retries);
+        fw_notify(" - management_agent_address:    0x%012llx\n",
+                  (unsigned long long) sd->management_agent_address);
+        fw_notify(" - command_block_agent_address: 0x%012llx\n",
+                  (unsigned long long) sd->command_block_agent_address);
+        fw_notify(" - status write address:        0x%012llx\n",
+                  (unsigned long long) sd->address_handler.offset);
+
+#if 0
+        /* FIXME: The linux1394 sbp2 does this last step. */
+        sbp2_set_busy_timeout(scsi_id);
+#endif
+
+        PREPARE_DELAYED_WORK(&sd->work, sbp2_reconnect);
+        sbp2_agent_reset(unit);
+
+        /* FIXME: Loop over luns here. */
+        lun = 0;
+        retval = scsi_add_device(host, 0, 0, lun);
+        if (retval < 0) {
+                sbp2_send_management_orb(unit, sd->node_id, sd->generation,
+                                         SBP2_LOGOUT_REQUEST, sd->login_id,
+                                         NULL);
+                /*
+                 * Set this back to sbp2_login so we fall back and
+                 * retry login on bus reset.
+                 */
+                PREPARE_DELAYED_WORK(&sd->work, sbp2_login);
+        }
+        kref_put(&sd->kref, release_sbp2_device);
+}
+
+static int sbp2_probe(struct device *dev)
+{
+        struct fw_unit *unit = fw_unit(dev);
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct sbp2_device *sd;
+        struct fw_csr_iterator ci;
+        struct Scsi_Host *host;
+        int i, key, value, err;
+        u32 model, firmware_revision;
+
+        err = -ENOMEM;
+        host = scsi_host_alloc(&scsi_driver_template, sizeof(*sd));
+        if (host == NULL)
+                goto fail;
+
+        sd = (struct sbp2_device *) host->hostdata;
+        unit->device.driver_data = sd;
+        sd->unit = unit;
+        INIT_LIST_HEAD(&sd->orb_list);
+        kref_init(&sd->kref);
+
+        sd->address_handler.length = 0x100;
+        sd->address_handler.address_callback = sbp2_status_write;
+        sd->address_handler.callback_data = sd;
+
+        err = fw_core_add_address_handler(&sd->address_handler,
+                                          &fw_high_memory_region);
+        if (err < 0)
+                goto fail_host;
+
+        err = fw_device_enable_phys_dma(device);
+        if (err < 0)
+                goto fail_address_handler;
+
+        err = scsi_add_host(host, &unit->device);
+        if (err < 0)
+                goto fail_address_handler;
+
+        /*
+         * Scan unit directory to get management agent address,
+         * firmware revison and model.  Initialize firmware_revision
+         * and model to values that wont match anything in our table.
+         */
+        firmware_revision = 0xff000000;
+        model = 0xff000000;
+        fw_csr_iterator_init(&ci, unit->directory);
+        while (fw_csr_iterator_next(&ci, &key, &value)) {
+                switch (key) {
+                case CSR_DEPENDENT_INFO | CSR_OFFSET:
+                        sd->management_agent_address =
+                                0xfffff0000000ULL + 4 * value;
+                        break;
+                case SBP2_FIRMWARE_REVISION:
+                        firmware_revision = value;
+                        break;
+                case CSR_MODEL:
+                        model = value;
+                        break;
+                }
+        }
+
+        for (i = 0; i < ARRAY_SIZE(sbp2_workarounds_table); i++) {
+                if (sbp2_workarounds_table[i].firmware_revision !=
+                    (firmware_revision & 0xffffff00))
+                        continue;
+                if (sbp2_workarounds_table[i].model != model &&
+                    sbp2_workarounds_table[i].model != ~0)
+                        continue;
+                sd->workarounds |= sbp2_workarounds_table[i].workarounds;
+                break;
+        }
+
+        if (sd->workarounds)
+                fw_notify("Workarounds for node %s: 0x%x "
+                          "(firmware_revision 0x%06x, model_id 0x%06x)\n",
+                          unit->device.bus_id,
+                          sd->workarounds, firmware_revision, model);
+
+        get_device(&unit->device);
+
+        /*
+         * We schedule work to do the login so we can easily
+         * reschedule retries. Always get the ref before scheduling
+         * work.
+         */
+        INIT_DELAYED_WORK(&sd->work, sbp2_login);
+        if (schedule_delayed_work(&sd->work, 0))
+                kref_get(&sd->kref);
+
+        return 0;
+
+ fail_address_handler:
+        fw_core_remove_address_handler(&sd->address_handler);
+ fail_host:
+        scsi_host_put(host);
+ fail:
+        return err;
+}
+
+static int sbp2_remove(struct device *dev)
+{
+        struct fw_unit *unit = fw_unit(dev);
+        struct sbp2_device *sd = unit->device.driver_data;
+
+        kref_put(&sd->kref, release_sbp2_device);
+
+        return 0;
+}
+
+static void sbp2_reconnect(struct work_struct *work)
+{
+        struct sbp2_device *sd =
+                container_of(work, struct sbp2_device, work.work);
+        struct fw_unit *unit = sd->unit;
+        struct fw_device *device = fw_device(unit->device.parent);
+        int generation, node_id, local_node_id;
+
+        generation    = device->card->generation;
+        node_id       = device->node->node_id;
+        local_node_id = device->card->local_node->node_id;
+
+        if (sbp2_send_management_orb(unit, node_id, generation,
+                                     SBP2_RECONNECT_REQUEST,
+                                     sd->login_id, NULL) < 0) {
+                if (sd->retries++ >= 5) {
+                        fw_error("failed to reconnect to %s\n",
+                                 unit->device.bus_id);
+                        /* Fall back and try to log in again. */
+                        sd->retries = 0;
+                        PREPARE_DELAYED_WORK(&sd->work, sbp2_login);
+                }
+                schedule_delayed_work(&sd->work, DIV_ROUND_UP(HZ, 5));
+                return;
+        }
+
+        sd->generation   = generation;
+        sd->node_id      = node_id;
+        sd->address_high = local_node_id << 16;
+
+        fw_notify("reconnected to unit %s (%d retries)\n",
+                  unit->device.bus_id, sd->retries);
+        sbp2_agent_reset(unit);
+        sbp2_cancel_orbs(unit);
+        kref_put(&sd->kref, release_sbp2_device);
+}
+
+static void sbp2_update(struct fw_unit *unit)
+{
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct sbp2_device *sd = unit->device.driver_data;
+
+        sd->retries = 0;
+        fw_device_enable_phys_dma(device);
+        if (schedule_delayed_work(&sd->work, 0))
+                kref_get(&sd->kref);
+}
+
+#define SBP2_UNIT_SPEC_ID_ENTRY 0x0000609e
+#define SBP2_SW_VERSION_ENTRY   0x00010483
+
+static const struct fw_device_id sbp2_id_table[] = {
+        {
+                .match_flags  = FW_MATCH_SPECIFIER_ID | FW_MATCH_VERSION,
+                .specifier_id = SBP2_UNIT_SPEC_ID_ENTRY,
+                .version      = SBP2_SW_VERSION_ENTRY,
+        },
+        { }
+};
+
+static struct fw_driver sbp2_driver = {
+        .driver   = {
+                .owner  = THIS_MODULE,
+                .name   = sbp2_driver_name,
+                .bus    = &fw_bus_type,
+                .probe  = sbp2_probe,
+                .remove = sbp2_remove,
+        },
+        .update   = sbp2_update,
+        .id_table = sbp2_id_table,
+};
+
+static unsigned int
+sbp2_status_to_sense_data(u8 *sbp2_status, u8 *sense_data)
+{
+        int sam_status;
+
+        sense_data[0] = 0x70;
+        sense_data[1] = 0x0;
+        sense_data[2] = sbp2_status[1];
+        sense_data[3] = sbp2_status[4];
+        sense_data[4] = sbp2_status[5];
+        sense_data[5] = sbp2_status[6];
+        sense_data[6] = sbp2_status[7];
+        sense_data[7] = 10;
+        sense_data[8] = sbp2_status[8];
+        sense_data[9] = sbp2_status[9];
+        sense_data[10] = sbp2_status[10];
+        sense_data[11] = sbp2_status[11];
+        sense_data[12] = sbp2_status[2];
+        sense_data[13] = sbp2_status[3];
+        sense_data[14] = sbp2_status[12];
+        sense_data[15] = sbp2_status[13];
+
+        sam_status = sbp2_status[0] & 0x3f;
+
+        switch (sam_status) {
+        case SAM_STAT_GOOD:
+        case SAM_STAT_CHECK_CONDITION:
+        case SAM_STAT_CONDITION_MET:
+        case SAM_STAT_BUSY:
+        case SAM_STAT_RESERVATION_CONFLICT:
+        case SAM_STAT_COMMAND_TERMINATED:
+                return DID_OK << 16 | sam_status;
+
+        default:
+                return DID_ERROR << 16;
+        }
+}
+
+static void
+complete_command_orb(struct sbp2_orb *base_orb, struct sbp2_status *status)
+{
+        struct sbp2_command_orb *orb = (struct sbp2_command_orb *)base_orb;
+        struct fw_unit *unit = orb->unit;
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct scatterlist *sg;
+        int result;
+
+        if (status != NULL) {
+                if (STATUS_GET_DEAD(*status))
+                        sbp2_agent_reset(unit);
+
+                switch (STATUS_GET_RESPONSE(*status)) {
+                case SBP2_STATUS_REQUEST_COMPLETE:
+                        result = DID_OK << 16;
+                        break;
+                case SBP2_STATUS_TRANSPORT_FAILURE:
+                        result = DID_BUS_BUSY << 16;
+                        break;
+                case SBP2_STATUS_ILLEGAL_REQUEST:
+                case SBP2_STATUS_VENDOR_DEPENDENT:
+                default:
+                        result = DID_ERROR << 16;
+                        break;
+                }
+
+                if (result == DID_OK << 16 && STATUS_GET_LEN(*status) > 1)
+                        result = sbp2_status_to_sense_data(STATUS_GET_DATA(*status),
+                                                           orb->cmd->sense_buffer);
+        } else {
+                /*
+                 * If the orb completes with status == NULL, something
+                 * went wrong, typically a bus reset happened mid-orb
+                 * or when sending the write (less likely).
+                 */
+                result = DID_BUS_BUSY << 16;
+        }
+
+        dma_unmap_single(device->card->device, orb->base.request_bus,
+                         sizeof(orb->request), DMA_TO_DEVICE);
+
+        if (orb->cmd->use_sg > 0) {
+                sg = (struct scatterlist *)orb->cmd->request_buffer;
+                dma_unmap_sg(device->card->device, sg, orb->cmd->use_sg,
+                             orb->cmd->sc_data_direction);
+        }
+
+        if (orb->page_table_bus != 0)
+                dma_unmap_single(device->card->device, orb->page_table_bus,
+                                 sizeof(orb->page_table_bus), DMA_TO_DEVICE);
+
+        if (orb->request_buffer_bus != 0)
+                dma_unmap_single(device->card->device, orb->request_buffer_bus,
+                                 sizeof(orb->request_buffer_bus),
+                                 DMA_FROM_DEVICE);
+
+        orb->cmd->result = result;
+        orb->done(orb->cmd);
+        kfree(orb);
+}
+
+static int sbp2_command_orb_map_scatterlist(struct sbp2_command_orb *orb)
+{
+        struct sbp2_device *sd =
+                (struct sbp2_device *)orb->cmd->device->host->hostdata;
+        struct fw_unit *unit = sd->unit;
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct scatterlist *sg;
+        int sg_len, l, i, j, count;
+        size_t size;
+        dma_addr_t sg_addr;
+
+        sg = (struct scatterlist *)orb->cmd->request_buffer;
+        count = dma_map_sg(device->card->device, sg, orb->cmd->use_sg,
+                           orb->cmd->sc_data_direction);
+        if (count == 0)
+                goto fail;
+
+        /*
+         * Handle the special case where there is only one element in
+         * the scatter list by converting it to an immediate block
+         * request. This is also a workaround for broken devices such
+         * as the second generation iPod which doesn't support page
+         * tables.
+         */
+        if (count == 1 && sg_dma_len(sg) < SBP2_MAX_SG_ELEMENT_LENGTH) {
+                orb->request.data_descriptor.high = sd->address_high;
+                orb->request.data_descriptor.low  = sg_dma_address(sg);
+                orb->request.misc |=
+                        COMMAND_ORB_DATA_SIZE(sg_dma_len(sg));
+                return 0;
+        }
+
+        /*
+         * Convert the scatterlist to an sbp2 page table.  If any
+         * scatterlist entries are too big for sbp2, we split them as we
+         * go.  Even if we ask the block I/O layer to not give us sg
+         * elements larger than 65535 bytes, some IOMMUs may merge sg elements
+         * during DMA mapping, and Linux currently doesn't prevent this.
+         */
+        for (i = 0, j = 0; i < count; i++) {
+                sg_len = sg_dma_len(sg + i);
+                sg_addr = sg_dma_address(sg + i);
+                while (sg_len) {
+                        l = min(sg_len, SBP2_MAX_SG_ELEMENT_LENGTH);
+                        orb->page_table[j].low = sg_addr;
+                        orb->page_table[j].high = (l << 16);
+                        sg_addr += l;
+                        sg_len -= l;
+                        j++;
+                }
+        }
+
+        size = sizeof(orb->page_table[0]) * j;
+
+        /*
+         * The data_descriptor pointer is the one case where we need
+         * to fill in the node ID part of the address.  All other
+         * pointers assume that the data referenced reside on the
+         * initiator (i.e. us), but data_descriptor can refer to data
+         * on other nodes so we need to put our ID in descriptor.high.
+         */
+
+        orb->page_table_bus =
+                dma_map_single(device->card->device, orb->page_table,
+                               size, DMA_TO_DEVICE);
+        if (dma_mapping_error(orb->page_table_bus))
+                goto fail_page_table;
+        orb->request.data_descriptor.high = sd->address_high;
+        orb->request.data_descriptor.low  = orb->page_table_bus;
+        orb->request.misc |=
+                COMMAND_ORB_PAGE_TABLE_PRESENT |
+                COMMAND_ORB_DATA_SIZE(j);
+
+        fw_memcpy_to_be32(orb->page_table, orb->page_table, size);
+
+        return 0;
+
+ fail_page_table:
+        dma_unmap_sg(device->card->device, sg, orb->cmd->use_sg,
+                     orb->cmd->sc_data_direction);
+ fail:
+        return -ENOMEM;
+}
+
+/* SCSI stack integration */
+
+static int sbp2_scsi_queuecommand(struct scsi_cmnd *cmd, scsi_done_fn_t done)
+{
+        struct sbp2_device *sd =
+                (struct sbp2_device *)cmd->device->host->hostdata;
+        struct fw_unit *unit = sd->unit;
+        struct fw_device *device = fw_device(unit->device.parent);
+        struct sbp2_command_orb *orb;
+
+        /*
+         * Bidirectional commands are not yet implemented, and unknown
+         * transfer direction not handled.
+         */
+        if (cmd->sc_data_direction == DMA_BIDIRECTIONAL) {
+                fw_error("Cannot handle DMA_BIDIRECTIONAL - rejecting command");
+                cmd->result = DID_ERROR << 16;
+                done(cmd);
+                return 0;
+        }
+
+        orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
+        if (orb == NULL) {
+                fw_notify("failed to alloc orb\n");
+                goto fail_alloc;
+        }
+
+        /* Initialize rcode to something not RCODE_COMPLETE. */
+        orb->base.rcode = -1;
+        orb->base.request_bus =
+                dma_map_single(device->card->device, &orb->request,
+                               sizeof(orb->request), DMA_TO_DEVICE);
+        if (dma_mapping_error(orb->base.request_bus))
+                goto fail_mapping;
+
+        orb->unit = unit;
+        orb->done = done;
+        orb->cmd  = cmd;
+
+        orb->request.next.high   = SBP2_ORB_NULL;
+        orb->request.next.low    = 0x0;
+        /*
+         * At speed 100 we can do 512 bytes per packet, at speed 200,
+         * 1024 bytes per packet etc.  The SBP-2 max_payload field
+         * specifies the max payload size as 2 ^ (max_payload + 2), so
+         * if we set this to max_speed + 7, we get the right value.
+         */
+        orb->request.misc =
+                COMMAND_ORB_MAX_PAYLOAD(device->node->max_speed + 7) |
+                COMMAND_ORB_SPEED(device->node->max_speed) |
+                COMMAND_ORB_NOTIFY;
+
+        if (cmd->sc_data_direction == DMA_FROM_DEVICE)
+                orb->request.misc |=
+                        COMMAND_ORB_DIRECTION(SBP2_DIRECTION_FROM_MEDIA);
+        else if (cmd->sc_data_direction == DMA_TO_DEVICE)
+                orb->request.misc |=
+                        COMMAND_ORB_DIRECTION(SBP2_DIRECTION_TO_MEDIA);
+
+        if (cmd->use_sg && sbp2_command_orb_map_scatterlist(orb) < 0)
+                goto fail_map_payload;
+
+        fw_memcpy_to_be32(&orb->request, &orb->request, sizeof(orb->request));
+
+        memset(orb->request.command_block,
+               0, sizeof(orb->request.command_block));
+        memcpy(orb->request.command_block, cmd->cmnd, COMMAND_SIZE(*cmd->cmnd));
+
+        orb->base.callback = complete_command_orb;
+
+        sbp2_send_orb(&orb->base, unit, sd->node_id, sd->generation,
+                      sd->command_block_agent_address + SBP2_ORB_POINTER);
+
+        return 0;
+
+ fail_map_payload:
+        dma_unmap_single(device->card->device, orb->base.request_bus,
+                         sizeof(orb->request), DMA_TO_DEVICE);
+ fail_mapping:
+        kfree(orb);
+ fail_alloc:
+        return SCSI_MLQUEUE_HOST_BUSY;
+}
+
+static int sbp2_scsi_slave_alloc(struct scsi_device *sdev)
+{
+        struct sbp2_device *sd = (struct sbp2_device *)sdev->host->hostdata;
+
+        sdev->allow_restart = 1;
+
+        if (sd->workarounds & SBP2_WORKAROUND_INQUIRY_36)
+                sdev->inquiry_len = 36;
+        return 0;
+}
+
+static int sbp2_scsi_slave_configure(struct scsi_device *sdev)
+{
+        struct sbp2_device *sd = (struct sbp2_device *)sdev->host->hostdata;
+        struct fw_unit *unit = sd->unit;
+
+        sdev->use_10_for_rw = 1;
+
+        if (sdev->type == TYPE_ROM)
+                sdev->use_10_for_ms = 1;
+        if (sdev->type == TYPE_DISK &&
+            sd->workarounds & SBP2_WORKAROUND_MODE_SENSE_8)
+                sdev->skip_ms_page_8 = 1;
+        if (sd->workarounds & SBP2_WORKAROUND_FIX_CAPACITY) {
+                fw_notify("setting fix_capacity for %s\n", unit->device.bus_id);
+                sdev->fix_capacity = 1;
+        }
+
+        return 0;
+}
+
+/*
+ * Called by scsi stack when something has really gone wrong.  Usually
+ * called when a command has timed-out for some reason.
+ */
+static int sbp2_scsi_abort(struct scsi_cmnd *cmd)
+{
+        struct sbp2_device *sd =
+                (struct sbp2_device *)cmd->device->host->hostdata;
+        struct fw_unit *unit = sd->unit;
+
+        fw_notify("sbp2_scsi_abort\n");
+        sbp2_agent_reset(unit);
+        sbp2_cancel_orbs(unit);
+
+        return SUCCESS;
+}
+
+static struct scsi_host_template scsi_driver_template = {
+        .module                 = THIS_MODULE,
+        .name                   = "SBP-2 IEEE-1394",
+        .proc_name              = (char *)sbp2_driver_name,
+        .queuecommand           = sbp2_scsi_queuecommand,
+        .slave_alloc            = sbp2_scsi_slave_alloc,
+        .slave_configure        = sbp2_scsi_slave_configure,
+        .eh_abort_handler       = sbp2_scsi_abort,
+        .this_id                = -1,
+        .sg_tablesize           = SG_ALL,
+        .use_clustering         = ENABLE_CLUSTERING,
+        .cmd_per_lun            = 1,
+        .can_queue              = 1,
+};
+
+MODULE_AUTHOR("Kristian Hoegsberg <krh@bitplanet.net>");
+MODULE_DESCRIPTION("SCSI over IEEE1394");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(ieee1394, sbp2_id_table);
+
+/* Provide a module alias so root-on-sbp2 initrds don't break. */
+#ifndef CONFIG_IEEE1394_SBP2_MODULE
+MODULE_ALIAS("sbp2");
+#endif
+
+static int __init sbp2_init(void)
+{
+        return driver_register(&sbp2_driver.driver);
+}
+
+static void __exit sbp2_cleanup(void)
+{
+        driver_unregister(&sbp2_driver.driver);
+}
+
+module_init(sbp2_init);
+module_exit(sbp2_cleanup);
diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c
new file mode 100644
index 000000000000..7aebb8ae0efa
--- /dev/null
+++ b/drivers/firewire/fw-topology.c
@@ -0,0 +1,537 @@
+/*
+ * Incremental bus scan, based on bus topology
+ *
+ * Copyright (C) 2004-2006 Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/wait.h>
+#include <linux/errno.h>
+#include "fw-transaction.h"
+#include "fw-topology.h"
+
+#define SELF_ID_PHY_ID(q)               (((q) >> 24) & 0x3f)
+#define SELF_ID_EXTENDED(q)             (((q) >> 23) & 0x01)
+#define SELF_ID_LINK_ON(q)              (((q) >> 22) & 0x01)
+#define SELF_ID_GAP_COUNT(q)            (((q) >> 16) & 0x3f)
+#define SELF_ID_PHY_SPEED(q)            (((q) >> 14) & 0x03)
+#define SELF_ID_CONTENDER(q)            (((q) >> 11) & 0x01)
+#define SELF_ID_PHY_INITIATOR(q)        (((q) >>  1) & 0x01)
+#define SELF_ID_MORE_PACKETS(q)         (((q) >>  0) & 0x01)
+
+#define SELF_ID_EXT_SEQUENCE(q)         (((q) >> 20) & 0x07)
+
+static u32 *count_ports(u32 *sid, int *total_port_count, int *child_port_count)
+{
+        u32 q;
+        int port_type, shift, seq;
+
+        *total_port_count = 0;
+        *child_port_count = 0;
+
+        shift = 6;
+        q = *sid;
+        seq = 0;
+
+        while (1) {
+                port_type = (q >> shift) & 0x03;
+                switch (port_type) {
+                case SELFID_PORT_CHILD:
+                        (*child_port_count)++;
+                case SELFID_PORT_PARENT:
+                case SELFID_PORT_NCONN:
+                        (*total_port_count)++;
+                case SELFID_PORT_NONE:
+                        break;
+                }
+
+                shift -= 2;
+                if (shift == 0) {
+                        if (!SELF_ID_MORE_PACKETS(q))
+                                return sid + 1;
+
+                        shift = 16;
+                        sid++;
+                        q = *sid;
+
+                        /*
+                         * Check that the extra packets actually are
+                         * extended self ID packets and that the
+                         * sequence numbers in the extended self ID
+                         * packets increase as expected.
+                         */
+
+                        if (!SELF_ID_EXTENDED(q) ||
+                            seq != SELF_ID_EXT_SEQUENCE(q))
+                                return NULL;
+
+                        seq++;
+                }
+        }
+}
+
+static int get_port_type(u32 *sid, int port_index)
+{
+        int index, shift;
+
+        index = (port_index + 5) / 8;
+        shift = 16 - ((port_index + 5) & 7) * 2;
+        return (sid[index] >> shift) & 0x03;
+}
+
+static struct fw_node *fw_node_create(u32 sid, int port_count, int color)
+{
+        struct fw_node *node;
+
+        node = kzalloc(sizeof(*node) + port_count * sizeof(node->ports[0]),
+                       GFP_ATOMIC);
+        if (node == NULL)
+                return NULL;
+
+        node->color = color;
+        node->node_id = LOCAL_BUS | SELF_ID_PHY_ID(sid);
+        node->link_on = SELF_ID_LINK_ON(sid);
+        node->phy_speed = SELF_ID_PHY_SPEED(sid);
+        node->port_count = port_count;
+
+        atomic_set(&node->ref_count, 1);
+        INIT_LIST_HEAD(&node->link);
+
+        return node;
+}
+
+/*
+ * Compute the maximum hop count for this node and it's children.  The
+ * maximum hop count is the maximum number of connections between any
+ * two nodes in the subtree rooted at this node.  We need this for
+ * setting the gap count.  As we build the tree bottom up in
+ * build_tree() below, this is fairly easy to do: for each node we
+ * maintain the max hop count and the max depth, ie the number of hops
+ * to the furthest leaf.  Computing the max hop count breaks down into
+ * two cases: either the path goes through this node, in which case
+ * the hop count is the sum of the two biggest child depths plus 2.
+ * Or it could be the case that the max hop path is entirely
+ * containted in a child tree, in which case the max hop count is just
+ * the max hop count of this child.
+ */
+static void update_hop_count(struct fw_node *node)
+{
+        int depths[2] = { -1, -1 };
+        int max_child_hops = 0;
+        int i;
+
+        for (i = 0; i < node->port_count; i++) {
+                if (node->ports[i].node == NULL)
+                        continue;
+
+                if (node->ports[i].node->max_hops > max_child_hops)
+                        max_child_hops = node->ports[i].node->max_hops;
+
+                if (node->ports[i].node->max_depth > depths[0]) {
+                        depths[1] = depths[0];
+                        depths[0] = node->ports[i].node->max_depth;
+                } else if (node->ports[i].node->max_depth > depths[1])
+                        depths[1] = node->ports[i].node->max_depth;
+        }
+
+        node->max_depth = depths[0] + 1;
+        node->max_hops = max(max_child_hops, depths[0] + depths[1] + 2);
+}
+
+
+/**
+ * build_tree - Build the tree representation of the topology
+ * @self_ids: array of self IDs to create the tree from
+ * @self_id_count: the length of the self_ids array
+ * @local_id: the node ID of the local node
+ *
+ * This function builds the tree representation of the topology given
+ * by the self IDs from the latest bus reset.  During the construction
+ * of the tree, the function checks that the self IDs are valid and
+ * internally consistent.  On succcess this funtions returns the
+ * fw_node corresponding to the local card otherwise NULL.
+ */
+static struct fw_node *build_tree(struct fw_card *card,
+                                  u32 *sid, int self_id_count)
+{
+        struct fw_node *node, *child, *local_node, *irm_node;
+        struct list_head stack, *h;
+        u32 *next_sid, *end, q;
+        int i, port_count, child_port_count, phy_id, parent_count, stack_depth;
+        int gap_count, topology_type;
+
+        local_node = NULL;
+        node = NULL;
+        INIT_LIST_HEAD(&stack);
+        stack_depth = 0;
+        end = sid + self_id_count;
+        phy_id = 0;
+        irm_node = NULL;
+        gap_count = SELF_ID_GAP_COUNT(*sid);
+        topology_type = 0;
+
+        while (sid < end) {
+                next_sid = count_ports(sid, &port_count, &child_port_count);
+
+                if (next_sid == NULL) {
+                        fw_error("Inconsistent extended self IDs.\n");
+                        return NULL;
+                }
+
+                q = *sid;
+                if (phy_id != SELF_ID_PHY_ID(q)) {
+                        fw_error("PHY ID mismatch in self ID: %d != %d.\n",
+                                 phy_id, SELF_ID_PHY_ID(q));
+                        return NULL;
+                }
+
+                if (child_port_count > stack_depth) {
+                        fw_error("Topology stack underflow\n");
+                        return NULL;
+                }
+
+                /*
+                 * Seek back from the top of our stack to find the
+                 * start of the child nodes for this node.
+                 */
+                for (i = 0, h = &stack; i < child_port_count; i++)
+                        h = h->prev;
+                child = fw_node(h);
+
+                node = fw_node_create(q, port_count, card->color);
+                if (node == NULL) {
+                        fw_error("Out of memory while building topology.");
+                        return NULL;
+                }
+
+                if (phy_id == (card->node_id & 0x3f))
+                        local_node = node;
+
+                if (SELF_ID_CONTENDER(q))
+                        irm_node = node;
+
+                if (node->phy_speed == SCODE_BETA)
+                        topology_type |= FW_TOPOLOGY_B;
+                else
+                        topology_type |= FW_TOPOLOGY_A;
+
+                parent_count = 0;
+
+                for (i = 0; i < port_count; i++) {
+                        switch (get_port_type(sid, i)) {
+                        case SELFID_PORT_PARENT:
+                                /*
+                                 * Who's your daddy?  We dont know the
+                                 * parent node at this time, so we
+                                 * temporarily abuse node->color for
+                                 * remembering the entry in the
+                                 * node->ports array where the parent
+                                 * node should be.  Later, when we
+                                 * handle the parent node, we fix up
+                                 * the reference.
+                                 */
+                                parent_count++;
+                                node->color = i;
+                                break;
+
+                        case SELFID_PORT_CHILD:
+                                node->ports[i].node = child;
+                                /*
+                                 * Fix up parent reference for this
+                                 * child node.
+                                 */
+                                child->ports[child->color].node = node;
+                                child->color = card->color;
+                                child = fw_node(child->link.next);
+                                break;
+                        }
+                }
+
+                /*
+                 * Check that the node reports exactly one parent
+                 * port, except for the root, which of course should
+                 * have no parents.
+                 */
+                if ((next_sid == end && parent_count != 0) ||
+                    (next_sid < end && parent_count != 1)) {
+                        fw_error("Parent port inconsistency for node %d: "
+                                 "parent_count=%d\n", phy_id, parent_count);
+                        return NULL;
+                }
+
+                /* Pop the child nodes off the stack and push the new node. */
+                __list_del(h->prev, &stack);
+                list_add_tail(&node->link, &stack);
+                stack_depth += 1 - child_port_count;
+
+                /*
+                 * If all PHYs does not report the same gap count
+                 * setting, we fall back to 63 which will force a gap
+                 * count reconfiguration and a reset.
+                 */
+                if (SELF_ID_GAP_COUNT(q) != gap_count)
+                        gap_count = 63;
+
+                update_hop_count(node);
+
+                sid = next_sid;
+                phy_id++;
+        }
+
+        card->root_node = node;
+        card->irm_node = irm_node;
+        card->gap_count = gap_count;
+        card->topology_type = topology_type;
+
+        return local_node;
+}
+
+typedef void (*fw_node_callback_t)(struct fw_card * card,
+                                   struct fw_node * node,
+                                   struct fw_node * parent);
+
+static void
+for_each_fw_node(struct fw_card *card, struct fw_node *root,
+                 fw_node_callback_t callback)
+{
+        struct list_head list;
+        struct fw_node *node, *next, *child, *parent;
+        int i;
+
+        INIT_LIST_HEAD(&list);
+
+        fw_node_get(root);
+        list_add_tail(&root->link, &list);
+        parent = NULL;
+        list_for_each_entry(node, &list, link) {
+                node->color = card->color;
+
+                for (i = 0; i < node->port_count; i++) {
+                        child = node->ports[i].node;
+                        if (!child)
+                                continue;
+                        if (child->color == card->color)
+                                parent = child;
+                        else {
+                                fw_node_get(child);
+                                list_add_tail(&child->link, &list);
+                        }
+                }
+
+                callback(card, node, parent);
+        }
+
+        list_for_each_entry_safe(node, next, &list, link)
+                fw_node_put(node);
+}
+
+static void
+report_lost_node(struct fw_card *card,
+                 struct fw_node *node, struct fw_node *parent)
+{
+        fw_node_event(card, node, FW_NODE_DESTROYED);
+        fw_node_put(node);
+}
+
+static void
+report_found_node(struct fw_card *card,
+                  struct fw_node *node, struct fw_node *parent)
+{
+        int b_path = (node->phy_speed == SCODE_BETA);
+
+        if (parent != NULL) {
+                /* min() macro doesn't work here with gcc 3.4 */
+                node->max_speed = parent->max_speed < node->phy_speed ?
+                                        parent->max_speed : node->phy_speed;
+                node->b_path = parent->b_path && b_path;
+        } else {
+                node->max_speed = node->phy_speed;
+                node->b_path = b_path;
+        }
+
+        fw_node_event(card, node, FW_NODE_CREATED);
+}
+
+void fw_destroy_nodes(struct fw_card *card)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&card->lock, flags);
+        card->color++;
+        if (card->local_node != NULL)
+                for_each_fw_node(card, card->local_node, report_lost_node);
+        spin_unlock_irqrestore(&card->lock, flags);
+}
+
+static void move_tree(struct fw_node *node0, struct fw_node *node1, int port)
+{
+        struct fw_node *tree;
+        int i;
+
+        tree = node1->ports[port].node;
+        node0->ports[port].node = tree;
+        for (i = 0; i < tree->port_count; i++) {
+                if (tree->ports[i].node == node1) {
+                        tree->ports[i].node = node0;
+                        break;
+                }
+        }
+}
+
+/**
+ * update_tree - compare the old topology tree for card with the new
+ * one specified by root.  Queue the nodes and mark them as either
+ * found, lost or updated.  Update the nodes in the card topology tree
+ * as we go.
+ */
+static void
+update_tree(struct fw_card *card, struct fw_node *root)
+{
+        struct list_head list0, list1;
+        struct fw_node *node0, *node1;
+        int i, event;
+
+        INIT_LIST_HEAD(&list0);
+        list_add_tail(&card->local_node->link, &list0);
+        INIT_LIST_HEAD(&list1);
+        list_add_tail(&root->link, &list1);
+
+        node0 = fw_node(list0.next);
+        node1 = fw_node(list1.next);
+
+        while (&node0->link != &list0) {
+
+                /* assert(node0->port_count == node1->port_count); */
+                if (node0->link_on && !node1->link_on)
+                        event = FW_NODE_LINK_OFF;
+                else if (!node0->link_on && node1->link_on)
+                        event = FW_NODE_LINK_ON;
+                else
+                        event = FW_NODE_UPDATED;
+
+                node0->node_id = node1->node_id;
+                node0->color = card->color;
+                node0->link_on = node1->link_on;
+                node0->initiated_reset = node1->initiated_reset;
+                node0->max_hops = node1->max_hops;
+                node1->color = card->color;
+                fw_node_event(card, node0, event);
+
+                if (card->root_node == node1)
+                        card->root_node = node0;
+                if (card->irm_node == node1)
+                        card->irm_node = node0;
+
+                for (i = 0; i < node0->port_count; i++) {
+                        if (node0->ports[i].node && node1->ports[i].node) {
+                                /*
+                                 * This port didn't change, queue the
+                                 * connected node for further
+                                 * investigation.
+                                 */
+                                if (node0->ports[i].node->color == card->color)
+                                        continue;
+                                list_add_tail(&node0->ports[i].node->link,
+                                              &list0);
+                                list_add_tail(&node1->ports[i].node->link,
+                                              &list1);
+                        } else if (node0->ports[i].node) {
+                                /*
+                                 * The nodes connected here were
+                                 * unplugged; unref the lost nodes and
+                                 * queue FW_NODE_LOST callbacks for
+                                 * them.
+                                 */
+
+                                for_each_fw_node(card, node0->ports[i].node,
+                                                 report_lost_node);
+                                node0->ports[i].node = NULL;
+                        } else if (node1->ports[i].node) {
+                                /*
+                                 * One or more node were connected to
+                                 * this port. Move the new nodes into
+                                 * the tree and queue FW_NODE_CREATED
+                                 * callbacks for them.
+                                 */
+                                move_tree(node0, node1, i);
+                                for_each_fw_node(card, node0->ports[i].node,
+                                                 report_found_node);
+                        }
+                }
+
+                node0 = fw_node(node0->link.next);
+                node1 = fw_node(node1->link.next);
+        }
+}
+
+static void
+update_topology_map(struct fw_card *card, u32 *self_ids, int self_id_count)
+{
+        int node_count;
+
+        card->topology_map[1]++;
+        node_count = (card->root_node->node_id & 0x3f) + 1;
+        card->topology_map[2] = (node_count << 16) | self_id_count;
+        card->topology_map[0] = (self_id_count + 2) << 16;
+        memcpy(&card->topology_map[3], self_ids, self_id_count * 4);
+        fw_compute_block_crc(card->topology_map);
+}
+
+void
+fw_core_handle_bus_reset(struct fw_card *card,
+                         int node_id, int generation,
+                         int self_id_count, u32 * self_ids)
+{
+        struct fw_node *local_node;
+        unsigned long flags;
+
+        fw_flush_transactions(card);
+
+        spin_lock_irqsave(&card->lock, flags);
+
+        /*
+         * If the new topology has a different self_id_count the topology
+         * changed, either nodes were added or removed. In that case we
+         * reset the IRM reset counter.
+         */
+        if (card->self_id_count != self_id_count)
+                card->bm_retries = 0;
+
+        card->node_id = node_id;
+        card->generation = generation;
+        card->reset_jiffies = jiffies;
+        schedule_delayed_work(&card->work, 0);
+
+        local_node = build_tree(card, self_ids, self_id_count);
+
+        update_topology_map(card, self_ids, self_id_count);
+
+        card->color++;
+
+        if (local_node == NULL) {
+                fw_error("topology build failed\n");
+                /* FIXME: We need to issue a bus reset in this case. */
+        } else if (card->local_node == NULL) {
+                card->local_node = local_node;
+                for_each_fw_node(card, local_node, report_found_node);
+        } else {
+                update_tree(card, local_node);
+        }
+
+        spin_unlock_irqrestore(&card->lock, flags);
+}
+EXPORT_SYMBOL(fw_core_handle_bus_reset);
diff --git a/drivers/firewire/fw-topology.h b/drivers/firewire/fw-topology.h
new file mode 100644
index 000000000000..363b6cbcd0b3
--- /dev/null
+++ b/drivers/firewire/fw-topology.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __fw_topology_h
+#define __fw_topology_h
+
+enum {
+        FW_TOPOLOGY_A =         0x01,
+        FW_TOPOLOGY_B =         0x02,
+        FW_TOPOLOGY_MIXED =     0x03,
+};
+
+enum {
+        FW_NODE_CREATED =   0x00,
+        FW_NODE_UPDATED =   0x01,
+        FW_NODE_DESTROYED = 0x02,
+        FW_NODE_LINK_ON =   0x03,
+        FW_NODE_LINK_OFF =  0x04,
+};
+
+struct fw_port {
+        struct fw_node *node;
+        unsigned speed : 3; /* S100, S200, ... S3200 */
+};
+
+struct fw_node {
+        u16 node_id;
+        u8 color;
+        u8 port_count;
+        unsigned link_on : 1;
+        unsigned initiated_reset : 1;
+        unsigned b_path : 1;
+        u8 phy_speed : 3; /* As in the self ID packet. */
+        u8 max_speed : 5; /* Minimum of all phy-speeds and port speeds on
+                           * the path from the local node to this node. */
+        u8 max_depth : 4; /* Maximum depth to any leaf node */
+        u8 max_hops : 4;  /* Max hops in this sub tree */
+        atomic_t ref_count;
+
+        /* For serializing node topology into a list. */
+        struct list_head link;
+
+        /* Upper layer specific data. */
+        void *data;
+
+        struct fw_port ports[0];
+};
+
+static inline struct fw_node *
+fw_node(struct list_head *l)
+{
+        return list_entry(l, struct fw_node, link);
+}
+
+static inline struct fw_node *
+fw_node_get(struct fw_node *node)
+{
+        atomic_inc(&node->ref_count);
+
+        return node;
+}
+
+static inline void
+fw_node_put(struct fw_node *node)
+{
+        if (atomic_dec_and_test(&node->ref_count))
+                kfree(node);
+}
+
+void
+fw_destroy_nodes(struct fw_card *card);
+
+int
+fw_compute_block_crc(u32 *block);
+
+
+#endif /* __fw_topology_h */
diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c
new file mode 100644
index 000000000000..80d0121463d0
--- /dev/null
+++ b/drivers/firewire/fw-transaction.c
@@ -0,0 +1,910 @@
+/*
+ * Core IEEE1394 transaction logic
+ *
+ * Copyright (C) 2004-2006 Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/poll.h>
+#include <linux/list.h>
+#include <linux/kthread.h>
+#include <asm/uaccess.h>
+#include <asm/semaphore.h>
+
+#include "fw-transaction.h"
+#include "fw-topology.h"
+#include "fw-device.h"
+
+#define HEADER_PRI(pri)                 ((pri) << 0)
+#define HEADER_TCODE(tcode)             ((tcode) << 4)
+#define HEADER_RETRY(retry)             ((retry) << 8)
+#define HEADER_TLABEL(tlabel)           ((tlabel) << 10)
+#define HEADER_DESTINATION(destination) ((destination) << 16)
+#define HEADER_SOURCE(source)           ((source) << 16)
+#define HEADER_RCODE(rcode)             ((rcode) << 12)
+#define HEADER_OFFSET_HIGH(offset_high) ((offset_high) << 0)
+#define HEADER_DATA_LENGTH(length)      ((length) << 16)
+#define HEADER_EXTENDED_TCODE(tcode)    ((tcode) << 0)
+
+#define HEADER_GET_TCODE(q)             (((q) >> 4) & 0x0f)
+#define HEADER_GET_TLABEL(q)            (((q) >> 10) & 0x3f)
+#define HEADER_GET_RCODE(q)             (((q) >> 12) & 0x0f)
+#define HEADER_GET_DESTINATION(q)       (((q) >> 16) & 0xffff)
+#define HEADER_GET_SOURCE(q)            (((q) >> 16) & 0xffff)
+#define HEADER_GET_OFFSET_HIGH(q)       (((q) >> 0) & 0xffff)
+#define HEADER_GET_DATA_LENGTH(q)       (((q) >> 16) & 0xffff)
+#define HEADER_GET_EXTENDED_TCODE(q)    (((q) >> 0) & 0xffff)
+
+#define PHY_CONFIG_GAP_COUNT(gap_count) (((gap_count) << 16) | (1 << 22))
+#define PHY_CONFIG_ROOT_ID(node_id)     ((((node_id) & 0x3f) << 24) | (1 << 23))
+#define PHY_IDENTIFIER(id)              ((id) << 30)
+
+static int
+close_transaction(struct fw_transaction *transaction,
+                  struct fw_card *card, int rcode,
+                  u32 *payload, size_t length)
+{
+        struct fw_transaction *t;
+        unsigned long flags;
+
+        spin_lock_irqsave(&card->lock, flags);
+        list_for_each_entry(t, &card->transaction_list, link) {
+                if (t == transaction) {
+                        list_del(&t->link);
+                        card->tlabel_mask &= ~(1 << t->tlabel);
+                        break;
+                }
+        }
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        if (&t->link != &card->transaction_list) {
+                t->callback(card, rcode, payload, length, t->callback_data);
+                return 0;
+        }
+
+        return -ENOENT;
+}
+
+/*
+ * Only valid for transactions that are potentially pending (ie have
+ * been sent).
+ */
+int
+fw_cancel_transaction(struct fw_card *card,
+                      struct fw_transaction *transaction)
+{
+        /*
+         * Cancel the packet transmission if it's still queued.  That
+         * will call the packet transmission callback which cancels
+         * the transaction.
+         */
+
+        if (card->driver->cancel_packet(card, &transaction->packet) == 0)
+                return 0;
+
+        /*
+         * If the request packet has already been sent, we need to see
+         * if the transaction is still pending and remove it in that case.
+         */
+
+        return close_transaction(transaction, card, RCODE_CANCELLED, NULL, 0);
+}
+EXPORT_SYMBOL(fw_cancel_transaction);
+
+static void
+transmit_complete_callback(struct fw_packet *packet,
+                           struct fw_card *card, int status)
+{
+        struct fw_transaction *t =
+            container_of(packet, struct fw_transaction, packet);
+
+        switch (status) {
+        case ACK_COMPLETE:
+                close_transaction(t, card, RCODE_COMPLETE, NULL, 0);
+                break;
+        case ACK_PENDING:
+                t->timestamp = packet->timestamp;
+                break;
+        case ACK_BUSY_X:
+        case ACK_BUSY_A:
+        case ACK_BUSY_B:
+                close_transaction(t, card, RCODE_BUSY, NULL, 0);
+                break;
+        case ACK_DATA_ERROR:
+                close_transaction(t, card, RCODE_DATA_ERROR, NULL, 0);
+                break;
+        case ACK_TYPE_ERROR:
+                close_transaction(t, card, RCODE_TYPE_ERROR, NULL, 0);
+                break;
+        default:
+                /*
+                 * In this case the ack is really a juju specific
+                 * rcode, so just forward that to the callback.
+                 */
+                close_transaction(t, card, status, NULL, 0);
+                break;
+        }
+}
+
+static void
+fw_fill_request(struct fw_packet *packet, int tcode, int tlabel,
+                int node_id, int source_id, int generation, int speed,
+                unsigned long long offset, void *payload, size_t length)
+{
+        int ext_tcode;
+
+        if (tcode > 0x10) {
+                ext_tcode = tcode - 0x10;
+                tcode = TCODE_LOCK_REQUEST;
+        } else
+                ext_tcode = 0;
+
+        packet->header[0] =
+                HEADER_RETRY(RETRY_X) |
+                HEADER_TLABEL(tlabel) |
+                HEADER_TCODE(tcode) |
+                HEADER_DESTINATION(node_id);
+        packet->header[1] =
+                HEADER_OFFSET_HIGH(offset >> 32) | HEADER_SOURCE(source_id);
+        packet->header[2] =
+                offset;
+
+        switch (tcode) {
+        case TCODE_WRITE_QUADLET_REQUEST:
+                packet->header[3] = *(u32 *)payload;
+                packet->header_length = 16;
+                packet->payload_length = 0;
+                break;
+
+        case TCODE_LOCK_REQUEST:
+        case TCODE_WRITE_BLOCK_REQUEST:
+                packet->header[3] =
+                        HEADER_DATA_LENGTH(length) |
+                        HEADER_EXTENDED_TCODE(ext_tcode);
+                packet->header_length = 16;
+                packet->payload = payload;
+                packet->payload_length = length;
+                break;
+
+        case TCODE_READ_QUADLET_REQUEST:
+                packet->header_length = 12;
+                packet->payload_length = 0;
+                break;
+
+        case TCODE_READ_BLOCK_REQUEST:
+                packet->header[3] =
+                        HEADER_DATA_LENGTH(length) |
+                        HEADER_EXTENDED_TCODE(ext_tcode);
+                packet->header_length = 16;
+                packet->payload_length = 0;
+                break;
+        }
+
+        packet->speed = speed;
+        packet->generation = generation;
+        packet->ack = 0;
+}
+
+/**
+ * This function provides low-level access to the IEEE1394 transaction
+ * logic.  Most C programs would use either fw_read(), fw_write() or
+ * fw_lock() instead - those function are convenience wrappers for
+ * this function.  The fw_send_request() function is primarily
+ * provided as a flexible, one-stop entry point for languages bindings
+ * and protocol bindings.
+ *
+ * FIXME: Document this function further, in particular the possible
+ * values for rcode in the callback.  In short, we map ACK_COMPLETE to
+ * RCODE_COMPLETE, internal errors set errno and set rcode to
+ * RCODE_SEND_ERROR (which is out of range for standard ieee1394
+ * rcodes).  All other rcodes are forwarded unchanged.  For all
+ * errors, payload is NULL, length is 0.
+ *
+ * Can not expect the callback to be called before the function
+ * returns, though this does happen in some cases (ACK_COMPLETE and
+ * errors).
+ *
+ * The payload is only used for write requests and must not be freed
+ * until the callback has been called.
+ *
+ * @param card the card from which to send the request
+ * @param tcode the tcode for this transaction.  Do not use
+ *   TCODE_LOCK_REQUEST directly, insted use TCODE_LOCK_MASK_SWAP
+ *   etc. to specify tcode and ext_tcode.
+ * @param node_id the destination node ID (bus ID and PHY ID concatenated)
+ * @param generation the generation for which node_id is valid
+ * @param speed the speed to use for sending the request
+ * @param offset the 48 bit offset on the destination node
+ * @param payload the data payload for the request subaction
+ * @param length the length in bytes of the data to read
+ * @param callback function to be called when the transaction is completed
+ * @param callback_data pointer to arbitrary data, which will be
+ *   passed to the callback
+ */
+void
+fw_send_request(struct fw_card *card, struct fw_transaction *t,
+                int tcode, int node_id, int generation, int speed,
+                unsigned long long offset,
+                void *payload, size_t length,
+                fw_transaction_callback_t callback, void *callback_data)
+{
+        unsigned long flags;
+        int tlabel, source;
+
+        /*
+         * Bump the flush timer up 100ms first of all so we
+         * don't race with a flush timer callback.
+         */
+
+        mod_timer(&card->flush_timer, jiffies + DIV_ROUND_UP(HZ, 10));
+
+        /*
+         * Allocate tlabel from the bitmap and put the transaction on
+         * the list while holding the card spinlock.
+         */
+
+        spin_lock_irqsave(&card->lock, flags);
+
+        source = card->node_id;
+        tlabel = card->current_tlabel;
+        if (card->tlabel_mask & (1 << tlabel)) {
+                spin_unlock_irqrestore(&card->lock, flags);
+                callback(card, RCODE_SEND_ERROR, NULL, 0, callback_data);
+                return;
+        }
+
+        card->current_tlabel = (card->current_tlabel + 1) & 0x1f;
+        card->tlabel_mask |= (1 << tlabel);
+
+        list_add_tail(&t->link, &card->transaction_list);
+
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        /* Initialize rest of transaction, fill out packet and send it. */
+        t->node_id = node_id;
+        t->tlabel = tlabel;
+        t->callback = callback;
+        t->callback_data = callback_data;
+
+        fw_fill_request(&t->packet, tcode, t->tlabel,
+                        node_id, source, generation,
+                        speed, offset, payload, length);
+        t->packet.callback = transmit_complete_callback;
+
+        card->driver->send_request(card, &t->packet);
+}
+EXPORT_SYMBOL(fw_send_request);
+
+static void
+transmit_phy_packet_callback(struct fw_packet *packet,
+                             struct fw_card *card, int status)
+{
+        kfree(packet);
+}
+
+static void send_phy_packet(struct fw_card *card, u32 data, int generation)
+{
+        struct fw_packet *packet;
+
+        packet = kzalloc(sizeof(*packet), GFP_ATOMIC);
+        if (packet == NULL)
+                return;
+
+        packet->header[0] = data;
+        packet->header[1] = ~data;
+        packet->header_length = 8;
+        packet->payload_length = 0;
+        packet->speed = SCODE_100;
+        packet->generation = generation;
+        packet->callback = transmit_phy_packet_callback;
+
+        card->driver->send_request(card, packet);
+}
+
+void fw_send_phy_config(struct fw_card *card,
+                        int node_id, int generation, int gap_count)
+{
+        u32 q;
+
+        q = PHY_IDENTIFIER(PHY_PACKET_CONFIG) |
+                PHY_CONFIG_ROOT_ID(node_id) |
+                PHY_CONFIG_GAP_COUNT(gap_count);
+
+        send_phy_packet(card, q, generation);
+}
+
+void fw_flush_transactions(struct fw_card *card)
+{
+        struct fw_transaction *t, *next;
+        struct list_head list;
+        unsigned long flags;
+
+        INIT_LIST_HEAD(&list);
+        spin_lock_irqsave(&card->lock, flags);
+        list_splice_init(&card->transaction_list, &list);
+        card->tlabel_mask = 0;
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        list_for_each_entry_safe(t, next, &list, link) {
+                card->driver->cancel_packet(card, &t->packet);
+
+                /*
+                 * At this point cancel_packet will never call the
+                 * transaction callback, since we just took all the
+                 * transactions out of the list.  So do it here.
+                 */
+                t->callback(card, RCODE_CANCELLED, NULL, 0, t->callback_data);
+        }
+}
+
+static struct fw_address_handler *
+lookup_overlapping_address_handler(struct list_head *list,
+                                   unsigned long long offset, size_t length)
+{
+        struct fw_address_handler *handler;
+
+        list_for_each_entry(handler, list, link) {
+                if (handler->offset < offset + length &&
+                    offset < handler->offset + handler->length)
+                        return handler;
+        }
+
+        return NULL;
+}
+
+static struct fw_address_handler *
+lookup_enclosing_address_handler(struct list_head *list,
+                                 unsigned long long offset, size_t length)
+{
+        struct fw_address_handler *handler;
+
+        list_for_each_entry(handler, list, link) {
+                if (handler->offset <= offset &&
+                    offset + length <= handler->offset + handler->length)
+                        return handler;
+        }
+
+        return NULL;
+}
+
+static DEFINE_SPINLOCK(address_handler_lock);
+static LIST_HEAD(address_handler_list);
+
+const struct fw_address_region fw_low_memory_region =
+        { .start = 0x000000000000ULL, .end = 0x000100000000ULL,  };
+const struct fw_address_region fw_high_memory_region =
+        { .start = 0x000100000000ULL, .end = 0xffffe0000000ULL,  };
+const struct fw_address_region fw_private_region =
+        { .start = 0xffffe0000000ULL, .end = 0xfffff0000000ULL,  };
+const struct fw_address_region fw_csr_region =
+        { .start = 0xfffff0000000ULL, .end = 0xfffff0000800ULL,  };
+const struct fw_address_region fw_unit_space_region =
+        { .start = 0xfffff0000900ULL, .end = 0x1000000000000ULL, };
+EXPORT_SYMBOL(fw_low_memory_region);
+EXPORT_SYMBOL(fw_high_memory_region);
+EXPORT_SYMBOL(fw_private_region);
+EXPORT_SYMBOL(fw_csr_region);
+EXPORT_SYMBOL(fw_unit_space_region);
+
+/**
+ * Allocate a range of addresses in the node space of the OHCI
+ * controller.  When a request is received that falls within the
+ * specified address range, the specified callback is invoked.  The
+ * parameters passed to the callback give the details of the
+ * particular request
+ */
+int
+fw_core_add_address_handler(struct fw_address_handler *handler,
+                            const struct fw_address_region *region)
+{
+        struct fw_address_handler *other;
+        unsigned long flags;
+        int ret = -EBUSY;
+
+        spin_lock_irqsave(&address_handler_lock, flags);
+
+        handler->offset = region->start;
+        while (handler->offset + handler->length <= region->end) {
+                other =
+                    lookup_overlapping_address_handler(&address_handler_list,
+                                                       handler->offset,
+                                                       handler->length);
+                if (other != NULL) {
+                        handler->offset += other->length;
+                } else {
+                        list_add_tail(&handler->link, &address_handler_list);
+                        ret = 0;
+                        break;
+                }
+        }
+
+        spin_unlock_irqrestore(&address_handler_lock, flags);
+
+        return ret;
+}
+EXPORT_SYMBOL(fw_core_add_address_handler);
+
+/**
+ * Deallocate a range of addresses allocated with fw_allocate.  This
+ * will call the associated callback one last time with a the special
+ * tcode TCODE_DEALLOCATE, to let the client destroy the registered
+ * callback data.  For convenience, the callback parameters offset and
+ * length are set to the start and the length respectively for the
+ * deallocated region, payload is set to NULL.
+ */
+void fw_core_remove_address_handler(struct fw_address_handler *handler)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&address_handler_lock, flags);
+        list_del(&handler->link);
+        spin_unlock_irqrestore(&address_handler_lock, flags);
+}
+EXPORT_SYMBOL(fw_core_remove_address_handler);
+
+struct fw_request {
+        struct fw_packet response;
+        u32 request_header[4];
+        int ack;
+        u32 length;
+        u32 data[0];
+};
+
+static void
+free_response_callback(struct fw_packet *packet,
+                       struct fw_card *card, int status)
+{
+        struct fw_request *request;
+
+        request = container_of(packet, struct fw_request, response);
+        kfree(request);
+}
+
+void
+fw_fill_response(struct fw_packet *response, u32 *request_header,
+                 int rcode, void *payload, size_t length)
+{
+        int tcode, tlabel, extended_tcode, source, destination;
+
+        tcode          = HEADER_GET_TCODE(request_header[0]);
+        tlabel         = HEADER_GET_TLABEL(request_header[0]);
+        source         = HEADER_GET_DESTINATION(request_header[0]);
+        destination    = HEADER_GET_SOURCE(request_header[1]);
+        extended_tcode = HEADER_GET_EXTENDED_TCODE(request_header[3]);
+
+        response->header[0] =
+                HEADER_RETRY(RETRY_1) |
+                HEADER_TLABEL(tlabel) |
+                HEADER_DESTINATION(destination);
+        response->header[1] =
+                HEADER_SOURCE(source) |
+                HEADER_RCODE(rcode);
+        response->header[2] = 0;
+
+        switch (tcode) {
+        case TCODE_WRITE_QUADLET_REQUEST:
+        case TCODE_WRITE_BLOCK_REQUEST:
+                response->header[0] |= HEADER_TCODE(TCODE_WRITE_RESPONSE);
+                response->header_length = 12;
+                response->payload_length = 0;
+                break;
+
+        case TCODE_READ_QUADLET_REQUEST:
+                response->header[0] |=
+                        HEADER_TCODE(TCODE_READ_QUADLET_RESPONSE);
+                if (payload != NULL)
+                        response->header[3] = *(u32 *)payload;
+                else
+                        response->header[3] = 0;
+                response->header_length = 16;
+                response->payload_length = 0;
+                break;
+
+        case TCODE_READ_BLOCK_REQUEST:
+        case TCODE_LOCK_REQUEST:
+                response->header[0] |= HEADER_TCODE(tcode + 2);
+                response->header[3] =
+                        HEADER_DATA_LENGTH(length) |
+                        HEADER_EXTENDED_TCODE(extended_tcode);
+                response->header_length = 16;
+                response->payload = payload;
+                response->payload_length = length;
+                break;
+
+        default:
+                BUG();
+                return;
+        }
+}
+EXPORT_SYMBOL(fw_fill_response);
+
+static struct fw_request *
+allocate_request(struct fw_packet *p)
+{
+        struct fw_request *request;
+        u32 *data, length;
+        int request_tcode, t;
+
+        request_tcode = HEADER_GET_TCODE(p->header[0]);
+        switch (request_tcode) {
+        case TCODE_WRITE_QUADLET_REQUEST:
+                data = &p->header[3];
+                length = 4;
+                break;
+
+        case TCODE_WRITE_BLOCK_REQUEST:
+        case TCODE_LOCK_REQUEST:
+                data = p->payload;
+                length = HEADER_GET_DATA_LENGTH(p->header[3]);
+                break;
+
+        case TCODE_READ_QUADLET_REQUEST:
+                data = NULL;
+                length = 4;
+                break;
+
+        case TCODE_READ_BLOCK_REQUEST:
+                data = NULL;
+                length = HEADER_GET_DATA_LENGTH(p->header[3]);
+                break;
+
+        default:
+                BUG();
+                return NULL;
+        }
+
+        request = kmalloc(sizeof(*request) + length, GFP_ATOMIC);
+        if (request == NULL)
+                return NULL;
+
+        t = (p->timestamp & 0x1fff) + 4000;
+        if (t >= 8000)
+                t = (p->timestamp & ~0x1fff) + 0x2000 + t - 8000;
+        else
+                t = (p->timestamp & ~0x1fff) + t;
+
+        request->response.speed = p->speed;
+        request->response.timestamp = t;
+        request->response.generation = p->generation;
+        request->response.ack = 0;
+        request->response.callback = free_response_callback;
+        request->ack = p->ack;
+        request->length = length;
+        if (data)
+                memcpy(request->data, data, length);
+
+        memcpy(request->request_header, p->header, sizeof(p->header));
+
+        return request;
+}
+
+void
+fw_send_response(struct fw_card *card, struct fw_request *request, int rcode)
+{
+        /*
+         * Broadcast packets are reported as ACK_COMPLETE, so this
+         * check is sufficient to ensure we don't send response to
+         * broadcast packets or posted writes.
+         */
+        if (request->ack != ACK_PENDING)
+                return;
+
+        if (rcode == RCODE_COMPLETE)
+                fw_fill_response(&request->response, request->request_header,
+                                 rcode, request->data, request->length);
+        else
+                fw_fill_response(&request->response, request->request_header,
+                                 rcode, NULL, 0);
+
+        card->driver->send_response(card, &request->response);
+}
+EXPORT_SYMBOL(fw_send_response);
+
+void
+fw_core_handle_request(struct fw_card *card, struct fw_packet *p)
+{
+        struct fw_address_handler *handler;
+        struct fw_request *request;
+        unsigned long long offset;
+        unsigned long flags;
+        int tcode, destination, source;
+
+        if (p->payload_length > 2048) {
+                /* FIXME: send error response. */
+                return;
+        }
+
+        if (p->ack != ACK_PENDING && p->ack != ACK_COMPLETE)
+                return;
+
+        request = allocate_request(p);
+        if (request == NULL) {
+                /* FIXME: send statically allocated busy packet. */
+                return;
+        }
+
+        offset      =
+                ((unsigned long long)
+                 HEADER_GET_OFFSET_HIGH(p->header[1]) << 32) | p->header[2];
+        tcode       = HEADER_GET_TCODE(p->header[0]);
+        destination = HEADER_GET_DESTINATION(p->header[0]);
+        source      = HEADER_GET_SOURCE(p->header[0]);
+
+        spin_lock_irqsave(&address_handler_lock, flags);
+        handler = lookup_enclosing_address_handler(&address_handler_list,
+                                                   offset, request->length);
+        spin_unlock_irqrestore(&address_handler_lock, flags);
+
+        /*
+         * FIXME: lookup the fw_node corresponding to the sender of
+         * this request and pass that to the address handler instead
+         * of the node ID.  We may also want to move the address
+         * allocations to fw_node so we only do this callback if the
+         * upper layers registered it for this node.
+         */
+
+        if (handler == NULL)
+                fw_send_response(card, request, RCODE_ADDRESS_ERROR);
+        else
+                handler->address_callback(card, request,
+                                          tcode, destination, source,
+                                          p->generation, p->speed, offset,
+                                          request->data, request->length,
+                                          handler->callback_data);
+}
+EXPORT_SYMBOL(fw_core_handle_request);
+
+void
+fw_core_handle_response(struct fw_card *card, struct fw_packet *p)
+{
+        struct fw_transaction *t;
+        unsigned long flags;
+        u32 *data;
+        size_t data_length;
+        int tcode, tlabel, destination, source, rcode;
+
+        tcode       = HEADER_GET_TCODE(p->header[0]);
+        tlabel      = HEADER_GET_TLABEL(p->header[0]);
+        destination = HEADER_GET_DESTINATION(p->header[0]);
+        source      = HEADER_GET_SOURCE(p->header[1]);
+        rcode       = HEADER_GET_RCODE(p->header[1]);
+
+        spin_lock_irqsave(&card->lock, flags);
+        list_for_each_entry(t, &card->transaction_list, link) {
+                if (t->node_id == source && t->tlabel == tlabel) {
+                        list_del(&t->link);
+                        card->tlabel_mask &= ~(1 << t->tlabel);
+                        break;
+                }
+        }
+        spin_unlock_irqrestore(&card->lock, flags);
+
+        if (&t->link == &card->transaction_list) {
+                fw_notify("Unsolicited response (source %x, tlabel %x)\n",
+                          source, tlabel);
+                return;
+        }
+
+        /*
+         * FIXME: sanity check packet, is length correct, does tcodes
+         * and addresses match.
+         */
+
+        switch (tcode) {
+        case TCODE_READ_QUADLET_RESPONSE:
+                data = (u32 *) &p->header[3];
+                data_length = 4;
+                break;
+
+        case TCODE_WRITE_RESPONSE:
+                data = NULL;
+                data_length = 0;
+                break;
+
+        case TCODE_READ_BLOCK_RESPONSE:
+        case TCODE_LOCK_RESPONSE:
+                data = p->payload;
+                data_length = HEADER_GET_DATA_LENGTH(p->header[3]);
+                break;
+
+        default:
+                /* Should never happen, this is just to shut up gcc. */
+                data = NULL;
+                data_length = 0;
+                break;
+        }
+
+        t->callback(card, rcode, data, data_length, t->callback_data);
+}
+EXPORT_SYMBOL(fw_core_handle_response);
+
+const struct fw_address_region topology_map_region =
+        { .start = 0xfffff0001000ull, .end = 0xfffff0001400ull, };
+
+static void
+handle_topology_map(struct fw_card *card, struct fw_request *request,
+                    int tcode, int destination, int source,
+                    int generation, int speed,
+                    unsigned long long offset,
+                    void *payload, size_t length, void *callback_data)
+{
+        int i, start, end;
+        u32 *map;
+
+        if (!TCODE_IS_READ_REQUEST(tcode)) {
+                fw_send_response(card, request, RCODE_TYPE_ERROR);
+                return;
+        }
+
+        if ((offset & 3) > 0 || (length & 3) > 0) {
+                fw_send_response(card, request, RCODE_ADDRESS_ERROR);
+                return;
+        }
+
+        start = (offset - topology_map_region.start) / 4;
+        end = start + length / 4;
+        map = payload;
+
+        for (i = 0; i < length / 4; i++)
+                map[i] = cpu_to_be32(card->topology_map[start + i]);
+
+        fw_send_response(card, request, RCODE_COMPLETE);
+}
+
+static struct fw_address_handler topology_map = {
+        .length                 = 0x200,
+        .address_callback       = handle_topology_map,
+};
+
+const struct fw_address_region registers_region =
+        { .start = 0xfffff0000000ull, .end = 0xfffff0000400ull, };
+
+static void
+handle_registers(struct fw_card *card, struct fw_request *request,
+                 int tcode, int destination, int source,
+                 int generation, int speed,
+                 unsigned long long offset,
+                 void *payload, size_t length, void *callback_data)
+{
+        int reg = offset - CSR_REGISTER_BASE;
+        unsigned long long bus_time;
+        __be32 *data = payload;
+
+        switch (reg) {
+        case CSR_CYCLE_TIME:
+        case CSR_BUS_TIME:
+                if (!TCODE_IS_READ_REQUEST(tcode) || length != 4) {
+                        fw_send_response(card, request, RCODE_TYPE_ERROR);
+                        break;
+                }
+
+                bus_time = card->driver->get_bus_time(card);
+                if (reg == CSR_CYCLE_TIME)
+                        *data = cpu_to_be32(bus_time);
+                else
+                        *data = cpu_to_be32(bus_time >> 25);
+                fw_send_response(card, request, RCODE_COMPLETE);
+                break;
+
+        case CSR_BUS_MANAGER_ID:
+        case CSR_BANDWIDTH_AVAILABLE:
+        case CSR_CHANNELS_AVAILABLE_HI:
+        case CSR_CHANNELS_AVAILABLE_LO:
+                /*
+                 * FIXME: these are handled by the OHCI hardware and
+                 * the stack never sees these request. If we add
+                 * support for a new type of controller that doesn't
+                 * handle this in hardware we need to deal with these
+                 * transactions.
+                 */
+                BUG();
+                break;
+
+        case CSR_BUSY_TIMEOUT:
+                /* FIXME: Implement this. */
+        default:
+                fw_send_response(card, request, RCODE_ADDRESS_ERROR);
+                break;
+        }
+}
+
+static struct fw_address_handler registers = {
+        .length                 = 0x400,
+        .address_callback       = handle_registers,
+};
+
+MODULE_AUTHOR("Kristian Hoegsberg <krh@bitplanet.net>");
+MODULE_DESCRIPTION("Core IEEE1394 transaction logic");
+MODULE_LICENSE("GPL");
+
+static const u32 vendor_textual_descriptor[] = {
+        /* textual descriptor leaf () */
+        0x00060000,
+        0x00000000,
+        0x00000000,
+        0x4c696e75,             /* L i n u */
+        0x78204669,             /* x   F i */
+        0x72657769,             /* r e w i */
+        0x72650000,             /* r e     */
+};
+
+static const u32 model_textual_descriptor[] = {
+        /* model descriptor leaf () */
+        0x00030000,
+        0x00000000,
+        0x00000000,
+        0x4a756a75,             /* J u j u */
+};
+
+static struct fw_descriptor vendor_id_descriptor = {
+        .length = ARRAY_SIZE(vendor_textual_descriptor),
+        .immediate = 0x03d00d1e,
+        .key = 0x81000000,
+        .data = vendor_textual_descriptor,
+};
+
+static struct fw_descriptor model_id_descriptor = {
+        .length = ARRAY_SIZE(model_textual_descriptor),
+        .immediate = 0x17000001,
+        .key = 0x81000000,
+        .data = model_textual_descriptor,
+};
+
+static int __init fw_core_init(void)
+{
+        int retval;
+
+        retval = bus_register(&fw_bus_type);
+        if (retval < 0)
+                return retval;
+
+        fw_cdev_major = register_chrdev(0, "firewire", &fw_device_ops);
+        if (fw_cdev_major < 0) {
+                bus_unregister(&fw_bus_type);
+                return fw_cdev_major;
+        }
+
+        retval = fw_core_add_address_handler(&topology_map,
+                                             &topology_map_region);
+        BUG_ON(retval < 0);
+
+        retval = fw_core_add_address_handler(&registers,
+                                             &registers_region);
+        BUG_ON(retval < 0);
+
+        /* Add the vendor textual descriptor. */
+        retval = fw_core_add_descriptor(&vendor_id_descriptor);
+        BUG_ON(retval < 0);
+        retval = fw_core_add_descriptor(&model_id_descriptor);
+        BUG_ON(retval < 0);
+
+        return 0;
+}
+
+static void __exit fw_core_cleanup(void)
+{
+        unregister_chrdev(fw_cdev_major, "firewire");
+        bus_unregister(&fw_bus_type);
+}
+
+module_init(fw_core_init);
+module_exit(fw_core_cleanup);
diff --git a/drivers/firewire/fw-transaction.h b/drivers/firewire/fw-transaction.h
new file mode 100644
index 000000000000..acdc3be38c61
--- /dev/null
+++ b/drivers/firewire/fw-transaction.h
@@ -0,0 +1,458 @@
+/*
+ * Copyright (C) 2003-2006 Kristian Hoegsberg <krh@bitplanet.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __fw_transaction_h
+#define __fw_transaction_h
+
+#include <linux/device.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/fs.h>
+#include <linux/dma-mapping.h>
+#include <linux/firewire-constants.h>
+
+#define TCODE_IS_READ_REQUEST(tcode)    (((tcode) & ~1) == 4)
+#define TCODE_IS_BLOCK_PACKET(tcode)    (((tcode) &  1) != 0)
+#define TCODE_IS_REQUEST(tcode)         (((tcode) &  2) == 0)
+#define TCODE_IS_RESPONSE(tcode)        (((tcode) &  2) != 0)
+#define TCODE_HAS_REQUEST_DATA(tcode)   (((tcode) & 12) != 4)
+#define TCODE_HAS_RESPONSE_DATA(tcode)  (((tcode) & 12) != 0)
+
+#define LOCAL_BUS 0xffc0
+
+#define SELFID_PORT_CHILD       0x3
+#define SELFID_PORT_PARENT      0x2
+#define SELFID_PORT_NCONN       0x1
+#define SELFID_PORT_NONE        0x0
+
+#define PHY_PACKET_CONFIG       0x0
+#define PHY_PACKET_LINK_ON      0x1
+#define PHY_PACKET_SELF_ID      0x2
+
+/* Bit fields _within_ the PHY registers. */
+#define PHY_LINK_ACTIVE         0x80
+#define PHY_CONTENDER           0x40
+#define PHY_BUS_RESET           0x40
+#define PHY_BUS_SHORT_RESET     0x40
+
+#define CSR_REGISTER_BASE               0xfffff0000000ULL
+
+/* register offsets relative to CSR_REGISTER_BASE */
+#define CSR_STATE_CLEAR                 0x0
+#define CSR_STATE_SET                   0x4
+#define CSR_NODE_IDS                    0x8
+#define CSR_RESET_START                 0xc
+#define CSR_SPLIT_TIMEOUT_HI            0x18
+#define CSR_SPLIT_TIMEOUT_LO            0x1c
+#define CSR_CYCLE_TIME                  0x200
+#define CSR_BUS_TIME                    0x204
+#define CSR_BUSY_TIMEOUT                0x210
+#define CSR_BUS_MANAGER_ID              0x21c
+#define CSR_BANDWIDTH_AVAILABLE         0x220
+#define CSR_CHANNELS_AVAILABLE          0x224
+#define CSR_CHANNELS_AVAILABLE_HI       0x224
+#define CSR_CHANNELS_AVAILABLE_LO       0x228
+#define CSR_BROADCAST_CHANNEL           0x234
+#define CSR_CONFIG_ROM                  0x400
+#define CSR_CONFIG_ROM_END              0x800
+#define CSR_FCP_COMMAND                 0xB00
+#define CSR_FCP_RESPONSE                0xD00
+#define CSR_FCP_END                     0xF00
+#define CSR_TOPOLOGY_MAP                0x1000
+#define CSR_TOPOLOGY_MAP_END            0x1400
+#define CSR_SPEED_MAP                   0x2000
+#define CSR_SPEED_MAP_END               0x3000
+
+#define fw_notify(s, args...) printk(KERN_NOTICE KBUILD_MODNAME ": " s, ## args)
+#define fw_error(s, args...) printk(KERN_ERR KBUILD_MODNAME ": " s, ## args)
+#define fw_debug(s, args...) printk(KERN_DEBUG KBUILD_MODNAME ": " s, ## args)
+
+static inline void
+fw_memcpy_from_be32(void *_dst, void *_src, size_t size)
+{
+        u32 *dst = _dst;
+        u32 *src = _src;
+        int i;
+
+        for (i = 0; i < size / 4; i++)
+                dst[i] = cpu_to_be32(src[i]);
+}
+
+static inline void
+fw_memcpy_to_be32(void *_dst, void *_src, size_t size)
+{
+        fw_memcpy_from_be32(_dst, _src, size);
+}
+
+struct fw_card;
+struct fw_packet;
+struct fw_node;
+struct fw_request;
+
+struct fw_descriptor {
+        struct list_head link;
+        size_t length;
+        u32 immediate;
+        u32 key;
+        const u32 *data;
+};
+
+int fw_core_add_descriptor(struct fw_descriptor *desc);
+void fw_core_remove_descriptor(struct fw_descriptor *desc);
+
+typedef void (*fw_packet_callback_t)(struct fw_packet *packet,
+                                     struct fw_card *card, int status);
+
+typedef void (*fw_transaction_callback_t)(struct fw_card *card, int rcode,
+                                          void *data,
+                                          size_t length,
+                                          void *callback_data);
+
+typedef void (*fw_address_callback_t)(struct fw_card *card,
+                                      struct fw_request *request,
+                                      int tcode, int destination, int source,
+                                      int generation, int speed,
+                                      unsigned long long offset,
+                                      void *data, size_t length,
+                                      void *callback_data);
+
+typedef void (*fw_bus_reset_callback_t)(struct fw_card *handle,
+                                        int node_id, int generation,
+                                        u32 *self_ids,
+                                        int self_id_count,
+                                        void *callback_data);
+
+struct fw_packet {
+        int speed;
+        int generation;
+        u32 header[4];
+        size_t header_length;
+        void *payload;
+        size_t payload_length;
+        u32 timestamp;
+
+        /*
+         * This callback is called when the packet transmission has
+         * completed; for successful transmission, the status code is
+         * the ack received from the destination, otherwise it's a
+         * negative errno: ENOMEM, ESTALE, ETIMEDOUT, ENODEV, EIO.
+         * The callback can be called from tasklet context and thus
+         * must never block.
+         */
+        fw_packet_callback_t callback;
+        int ack;
+        struct list_head link;
+        void *driver_data;
+};
+
+struct fw_transaction {
+        int node_id; /* The generation is implied; it is always the current. */
+        int tlabel;
+        int timestamp;
+        struct list_head link;
+
+        struct fw_packet packet;
+
+        /*
+         * The data passed to the callback is valid only during the
+         * callback.
+         */
+        fw_transaction_callback_t callback;
+        void *callback_data;
+};
+
+static inline struct fw_packet *
+fw_packet(struct list_head *l)
+{
+        return list_entry(l, struct fw_packet, link);
+}
+
+struct fw_address_handler {
+        u64 offset;
+        size_t length;
+        fw_address_callback_t address_callback;
+        void *callback_data;
+        struct list_head link;
+};
+
+
+struct fw_address_region {
+        u64 start;
+        u64 end;
+};
+
+extern const struct fw_address_region fw_low_memory_region;
+extern const struct fw_address_region fw_high_memory_region;
+extern const struct fw_address_region fw_private_region;
+extern const struct fw_address_region fw_csr_region;
+extern const struct fw_address_region fw_unit_space_region;
+
+int fw_core_add_address_handler(struct fw_address_handler *handler,
+                                const struct fw_address_region *region);
+void fw_core_remove_address_handler(struct fw_address_handler *handler);
+void fw_fill_response(struct fw_packet *response, u32 *request_header,
+                      int rcode, void *payload, size_t length);
+void fw_send_response(struct fw_card *card,
+                      struct fw_request *request, int rcode);
+
+extern struct bus_type fw_bus_type;
+
+struct fw_card {
+        const struct fw_card_driver *driver;
+        struct device *device;
+        struct kref kref;
+
+        int node_id;
+        int generation;
+        /* This is the generation used for timestamping incoming requests. */
+        int request_generation;
+        int current_tlabel, tlabel_mask;
+        struct list_head transaction_list;
+        struct timer_list flush_timer;
+        unsigned long reset_jiffies;
+
+        unsigned long long guid;
+        int max_receive;
+        int link_speed;
+        int config_rom_generation;
+
+        /*
+         * We need to store up to 4 self ID for a maximum of 63
+         * devices plus 3 words for the topology map header.
+         */
+        int self_id_count;
+        u32 topology_map[252 + 3];
+
+        spinlock_t lock; /* Take this lock when handling the lists in
+                          * this struct. */
+        struct fw_node *local_node;
+        struct fw_node *root_node;
+        struct fw_node *irm_node;
+        int color;
+        int gap_count;
+        int topology_type;
+
+        int index;
+
+        struct list_head link;
+
+        /* Work struct for BM duties. */
+        struct delayed_work work;
+        int bm_retries;
+        int bm_generation;
+};
+
+struct fw_card *fw_card_get(struct fw_card *card);
+void fw_card_put(struct fw_card *card);
+
+/*
+ * The iso packet format allows for an immediate header/payload part
+ * stored in 'header' immediately after the packet info plus an
+ * indirect payload part that is pointer to by the 'payload' field.
+ * Applications can use one or the other or both to implement simple
+ * low-bandwidth streaming (e.g. audio) or more advanced
+ * scatter-gather streaming (e.g. assembling video frame automatically).
+ */
+
+struct fw_iso_packet {
+        u16 payload_length;     /* Length of indirect payload. */
+        u32 interrupt : 1;      /* Generate interrupt on this packet */
+        u32 skip : 1;           /* Set to not send packet at all. */
+        u32 tag : 2;
+        u32 sy : 4;
+        u32 header_length : 8;  /* Length of immediate header. */
+        u32 header[0];
+};
+
+#define FW_ISO_CONTEXT_TRANSMIT 0
+#define FW_ISO_CONTEXT_RECEIVE  1
+
+#define FW_ISO_CONTEXT_MATCH_TAG0        1
+#define FW_ISO_CONTEXT_MATCH_TAG1        2
+#define FW_ISO_CONTEXT_MATCH_TAG2        4
+#define FW_ISO_CONTEXT_MATCH_TAG3        8
+#define FW_ISO_CONTEXT_MATCH_ALL_TAGS   15
+
+struct fw_iso_context;
+
+typedef void (*fw_iso_callback_t)(struct fw_iso_context *context,
+                                  u32 cycle,
+                                  size_t header_length,
+                                  void *header,
+                                  void *data);
+
+/*
+ * An iso buffer is just a set of pages mapped for DMA in the
+ * specified direction.  Since the pages are to be used for DMA, they
+ * are not mapped into the kernel virtual address space.  We store the
+ * DMA address in the page private. The helper function
+ * fw_iso_buffer_map() will map the pages into a given vma.
+ */
+
+struct fw_iso_buffer {
+        enum dma_data_direction direction;
+        struct page **pages;
+        int page_count;
+};
+
+struct fw_iso_context {
+        struct fw_card *card;
+        int type;
+        int channel;
+        int speed;
+        size_t header_size;
+        fw_iso_callback_t callback;
+        void *callback_data;
+};
+
+int
+fw_iso_buffer_init(struct fw_iso_buffer *buffer,
+                   struct fw_card *card,
+                   int page_count,
+                   enum dma_data_direction direction);
+int
+fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma);
+void
+fw_iso_buffer_destroy(struct fw_iso_buffer *buffer, struct fw_card *card);
+
+struct fw_iso_context *
+fw_iso_context_create(struct fw_card *card, int type,
+                      int channel, int speed, size_t header_size,
+                      fw_iso_callback_t callback, void *callback_data);
+
+void
+fw_iso_context_destroy(struct fw_iso_context *ctx);
+
+int
+fw_iso_context_queue(struct fw_iso_context *ctx,
+                     struct fw_iso_packet *packet,
+                     struct fw_iso_buffer *buffer,
+                     unsigned long payload);
+
+int
+fw_iso_context_start(struct fw_iso_context *ctx,
+                     int cycle, int sync, int tags);
+
+int
+fw_iso_context_stop(struct fw_iso_context *ctx);
+
+struct fw_card_driver {
+        const char *name;
+
+        /*
+         * Enable the given card with the given initial config rom.
+         * This function is expected to activate the card, and either
+         * enable the PHY or set the link_on bit and initiate a bus
+         * reset.
+         */
+        int (*enable)(struct fw_card *card, u32 *config_rom, size_t length);
+
+        int (*update_phy_reg)(struct fw_card *card, int address,
+                              int clear_bits, int set_bits);
+
+        /*
+         * Update the config rom for an enabled card.  This function
+         * should change the config rom that is presented on the bus
+         * an initiate a bus reset.
+         */
+        int (*set_config_rom)(struct fw_card *card,
+                              u32 *config_rom, size_t length);
+
+        void (*send_request)(struct fw_card *card, struct fw_packet *packet);
+        void (*send_response)(struct fw_card *card, struct fw_packet *packet);
+        /* Calling cancel is valid once a packet has been submitted. */
+        int (*cancel_packet)(struct fw_card *card, struct fw_packet *packet);
+
+        /*
+         * Allow the specified node ID to do direct DMA out and in of
+         * host memory.  The card will disable this for all node when
+         * a bus reset happens, so driver need to reenable this after
+         * bus reset.  Returns 0 on success, -ENODEV if the card
+         * doesn't support this, -ESTALE if the generation doesn't
+         * match.
+         */
+        int (*enable_phys_dma)(struct fw_card *card,
+                               int node_id, int generation);
+
+        u64 (*get_bus_time)(struct fw_card *card);
+
+        struct fw_iso_context *
+        (*allocate_iso_context)(struct fw_card *card,
+                                int type, size_t header_size);
+        void (*free_iso_context)(struct fw_iso_context *ctx);
+
+        int (*start_iso)(struct fw_iso_context *ctx,
+                         s32 cycle, u32 sync, u32 tags);
+
+        int (*queue_iso)(struct fw_iso_context *ctx,
+                         struct fw_iso_packet *packet,
+                         struct fw_iso_buffer *buffer,
+                         unsigned long payload);
+
+        int (*stop_iso)(struct fw_iso_context *ctx);
+};
+
+int
+fw_core_initiate_bus_reset(struct fw_card *card, int short_reset);
+
+void
+fw_send_request(struct fw_card *card, struct fw_transaction *t,
+                int tcode, int node_id, int generation, int speed,
+                unsigned long long offset,
+                void *data, size_t length,
+                fw_transaction_callback_t callback, void *callback_data);
+
+int fw_cancel_transaction(struct fw_card *card,
+                          struct fw_transaction *transaction);
+
+void fw_flush_transactions(struct fw_card *card);
+
+void fw_send_phy_config(struct fw_card *card,
+                        int node_id, int generation, int gap_count);
+
+/*
+ * Called by the topology code to inform the device code of node
+ * activity; found, lost, or updated nodes.
+ */
+void
+fw_node_event(struct fw_card *card, struct fw_node *node, int event);
+
+/* API used by card level drivers */
+
+void
+fw_card_initialize(struct fw_card *card, const struct fw_card_driver *driver,
+                   struct device *device);
+int
+fw_card_add(struct fw_card *card,
+            u32 max_receive, u32 link_speed, u64 guid);
+
+void
+fw_core_remove_card(struct fw_card *card);
+
+void
+fw_core_handle_bus_reset(struct fw_card *card,
+                         int node_id, int generation,
+                         int self_id_count, u32 *self_ids);
+void
+fw_core_handle_request(struct fw_card *card, struct fw_packet *request);
+
+void
+fw_core_handle_response(struct fw_card *card, struct fw_packet *packet);
+
+#endif /* __fw_transaction_h */
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 3ba3a5221c41..4d1cb5b855d1 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -4,6 +4,7 @@
 
 menuconfig HWMON
         tristate "Hardware Monitoring support"
+        depends on HAS_IOMEM
         default y
         help
           Hardware monitoring devices let you monitor the hardware health
diff --git a/drivers/hwmon/ams/ams-input.c b/drivers/hwmon/ams/ams-input.c
index 18210164e307..ca7095d96ad0 100644
--- a/drivers/hwmon/ams/ams-input.c
+++ b/drivers/hwmon/ams/ams-input.c
@@ -87,7 +87,7 @@ static void ams_input_enable(void)
         ams_info.idev->id.vendor = 0;
         ams_info.idev->open = ams_input_open;
         ams_info.idev->close = ams_input_close;
-        ams_info.idev->cdev.dev = &ams_info.of_dev->dev;
+        ams_info.idev->dev.parent = &ams_info.of_dev->dev;
 
         input_set_abs_params(ams_info.idev, ABS_X, -50, 50, 3, 0);
         input_set_abs_params(ams_info.idev, ABS_Y, -50, 50, 3, 0);
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index b51c104a28a2..0c160675b3ac 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -1100,7 +1100,7 @@ static int applesmc_create_accelerometer(void)
         /* initialize the input class */
         applesmc_idev->name = "applesmc";
         applesmc_idev->id.bustype = BUS_HOST;
-        applesmc_idev->cdev.dev = &pdev->dev;
+        applesmc_idev->dev.parent = &pdev->dev;
         applesmc_idev->evbit[0] = BIT(EV_ABS);
         applesmc_idev->open = applesmc_idev_open;
         applesmc_idev->close = applesmc_idev_close;
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 03b1f650d1c4..75e3911810a3 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -309,9 +309,11 @@ static int coretemp_cpu_callback(struct notifier_block *nfb,
 
         switch (action) {
         case CPU_ONLINE:
+        case CPU_ONLINE_FROZEN:
                 coretemp_device_add(cpu);
                 break;
         case CPU_DEAD:
+        case CPU_DEAD_FROZEN:
                 coretemp_device_remove(cpu);
                 break;
         }
diff --git a/drivers/hwmon/hdaps.c b/drivers/hwmon/hdaps.c
index f82fa2d23f95..e0cf5e6fe5bc 100644
--- a/drivers/hwmon/hdaps.c
+++ b/drivers/hwmon/hdaps.c
@@ -574,7 +574,7 @@ static int __init hdaps_init(void)
 
         /* initialize the input class */
         hdaps_idev->name = "hdaps";
-        hdaps_idev->cdev.dev = &pdev->dev;
+        hdaps_idev->dev.parent = &pdev->dev;
         hdaps_idev->evbit[0] = BIT(EV_ABS);
         input_set_abs_params(hdaps_idev, ABS_X,
                         -256, 256, HDAPS_INPUT_FUZZ, HDAPS_INPUT_FLAT);
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 434a61b415a3..96867347bcbf 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -4,6 +4,7 @@
 
 menuconfig I2C
         tristate "I2C support"
+        depends on HAS_IOMEM
         ---help---
           I2C (pronounce: I-square-C) is a slow serial bus protocol used in
           many micro controller applications and developed by Philips.  SMBus,
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index f35156c58922..9c8b6d5eaec9 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/version.h>
 #include <linux/kernel.h>
+#include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/delay.h>
@@ -226,13 +227,14 @@ static int __devinit at91_i2c_probe(struct platform_device *pdev)
         adapter->algo = &at91_algorithm;
         adapter->class = I2C_CLASS_HWMON;
         adapter->dev.parent = &pdev->dev;
+        /* adapter->id == 0 ... only one TWI controller for now */
 
         platform_set_drvdata(pdev, adapter);
 
         clk_enable(twi_clk);            /* enable peripheral clock */
         at91_twi_hwinit();              /* initialize TWI controller */
 
-        rc = i2c_add_adapter(adapter);
+        rc = i2c_add_numbered_adapter(adapter);
         if (rc) {
                 dev_err(&pdev->dev, "Adapter %s registration failed\n",
                                 adapter->name);
@@ -295,6 +297,9 @@ static int at91_i2c_resume(struct platform_device *pdev)
 #define at91_i2c_resume         NULL
 #endif
 
+/* work with "modprobe at91_i2c" from hotplugging or coldplugging */
+MODULE_ALIAS("at91_i2c");
+
 static struct platform_driver at91_i2c_driver = {
         .probe          = at91_i2c_probe,
         .remove         = __devexit_p(at91_i2c_remove),
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 873544ab598e..8a0a99b93641 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -548,7 +548,7 @@ static inline void i2c_pxa_stop_message(struct pxa_i2c *i2c)
          */
         icr = readl(_ICR(i2c));
         icr &= ~(ICR_STOP | ICR_ACKNAK);
-        writel(icr, _IRC(i2c));
+        writel(icr, _ICR(i2c));
 }
 
 /*
diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c
index 7ed92dc3d833..3c3f2ebf3fc9 100644
--- a/drivers/i2c/chips/tps65010.c
+++ b/drivers/i2c/chips/tps65010.c
@@ -354,7 +354,7 @@ static void tps65010_interrupt(struct tps65010 *tps)
                          * also needs to get error handling and probably
                          * an #ifdef CONFIG_SOFTWARE_SUSPEND
                          */
-                        pm_suspend(PM_SUSPEND_DISK);
+                        hibernate();
 #endif
                         poll = 1;
                 }
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 5bdf64b77913..9040809d2c25 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -7,6 +7,7 @@
 if BLOCK
 
 menu "ATA/ATAPI/MFM/RLL support"
+        depends on HAS_IOMEM
 
 config IDE
         tristate "ATA/ATAPI/MFM/RLL support"
@@ -291,6 +292,17 @@ config IDE_TASK_IOCTL
 
           If you are unsure, say N here.
 
+config IDE_PROC_FS
+        bool "legacy /proc/ide/ support"
+        depends on IDE && PROC_FS
+        default y
+        help
+          This option enables support for the various files in
+          /proc/ide.  In Linux 2.6 this has been superseded by
+          files in sysfs but many legacy applications rely on this.
+
+          If unsure say Y.
+
 comment "IDE chipset support/bugfixes"
 
 config IDE_GENERIC
@@ -360,6 +372,9 @@ config IDEPCI_SHARE_IRQ
           It is safe to say Y to this question, in most cases.
           If unsure, say N.
 
+config IDEPCI_PCIBUS_ORDER
+        def_bool PCI && BLK_DEV_IDE=y && BLK_DEV_IDEPCI
+
 config BLK_DEV_OFFBOARD
         bool "Boot off-board chipsets first support"
         depends on PCI && BLK_DEV_IDEPCI
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index d9f029e8ff74..75dc6969e0a7 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -20,7 +20,7 @@ ide-core-$(CONFIG_BLK_DEV_CMD640)	+= pci/cmd640.o
 # Core IDE code - must come before legacy
 ide-core-$(CONFIG_BLK_DEV_IDEPCI)       += setup-pci.o
 ide-core-$(CONFIG_BLK_DEV_IDEDMA)       += ide-dma.o
-ide-core-$(CONFIG_PROC_FS)              += ide-proc.o
+ide-core-$(CONFIG_IDE_PROC_FS)          += ide-proc.o
 ide-core-$(CONFIG_BLK_DEV_IDEPNP)       += ide-pnp.o
 ide-core-$(CONFIG_BLK_DEV_IDEACPI)      += ide-acpi.o
 
diff --git a/drivers/ide/arm/bast-ide.c b/drivers/ide/arm/bast-ide.c
index 9d474e5fd8dc..f7449d04114a 100644
--- a/drivers/ide/arm/bast-ide.c
+++ b/drivers/ide/arm/bast-ide.c
@@ -45,7 +45,7 @@ bastide_register(unsigned int base, unsigned int aux, int irq,
         hw.io_ports[IDE_CONTROL_OFFSET] = aux + (6 * 0x20);
         hw.irq = irq;
 
-        ide_register_hw(&hw, hwif);
+        ide_register_hw(&hw, 0, hwif);
 
         return 0;
 }
diff --git a/drivers/ide/arm/icside.c b/drivers/ide/arm/icside.c
index e2953fc1fafb..1fe0457243db 100644
--- a/drivers/ide/arm/icside.c
+++ b/drivers/ide/arm/icside.c
@@ -342,7 +342,7 @@ static int icside_dma_check(ide_drive_t *drive)
          * Enable DMA on any drive that has multiword DMA
          */
         if (id->field_valid & 2) {
-                xfer_mode = ide_dma_speed(drive, 0);
+                xfer_mode = ide_max_dma_mode(drive);
                 goto out;
         }
 
@@ -591,7 +591,8 @@ icside_register_v5(struct icside_state *state, struct expansion_card *ec)
         state->hwif[0] = hwif;
 
         probe_hwif_init(hwif);
-        create_proc_ide_interfaces();
+
+        ide_proc_register_port(hwif);
 
         return 0;
 }
@@ -679,7 +680,9 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 
         probe_hwif_init(hwif);
         probe_hwif_init(mate);
-        create_proc_ide_interfaces();
+
+        ide_proc_register_port(hwif);
+        ide_proc_register_port(mate);
 
         return 0;
 
diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c
index 23488c4d1fcd..a3d6744e870a 100644
--- a/drivers/ide/arm/ide_arm.c
+++ b/drivers/ide/arm/ide_arm.c
@@ -38,6 +38,6 @@ void __init ide_arm_init(void)
                 memset(&hw, 0, sizeof(hw));
                 ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206);
                 hw.irq = IDE_ARM_IRQ;
-                ide_register_hw(&hw, NULL);
+                ide_register_hw(&hw, 1, NULL);
         }
 }
diff --git a/drivers/ide/arm/rapide.c b/drivers/ide/arm/rapide.c
index 9c6c49fdd2b1..890ea3fac3c6 100644
--- a/drivers/ide/arm/rapide.c
+++ b/drivers/ide/arm/rapide.c
@@ -76,7 +76,7 @@ rapide_probe(struct expansion_card *ec, const struct ecard_id *id)
                 hwif->gendev.parent = &ec->dev;
                 hwif->noprobe = 0;
                 probe_hwif_init(hwif);
-                create_proc_ide_interfaces();
+                ide_proc_register_port(hwif);
                 ecard_set_drvdata(ec, hwif);
                 goto out;
         }
diff --git a/drivers/ide/cris/ide-cris.c b/drivers/ide/cris/ide-cris.c
index 5e8efc89255a..c04cb25a01ff 100644
--- a/drivers/ide/cris/ide-cris.c
+++ b/drivers/ide/cris/ide-cris.c
@@ -796,7 +796,7 @@ init_e100_ide (void)
                                 ide_offsets,
                                 0, 0, cris_ide_ack_intr,
                                 ide_default_irq(0));
-                ide_register_hw(&hw, &hwif);
+                ide_register_hw(&hw, 1, &hwif);
                 hwif->mmio = 1;
                 hwif->chipset = ide_etrax100;
                 hwif->tuneproc = &tune_cris_ide;
@@ -1004,7 +1004,7 @@ static int cris_ide_build_dmatable (ide_drive_t *drive)
 
 static int cris_config_drive_for_dma (ide_drive_t *drive)
 {
-        u8 speed = ide_dma_speed(drive, 1);
+        u8 speed = ide_max_dma_mode(drive);
 
         if (!speed)
                 return 0;
diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
index 88750a300337..6d26ad7360d5 100644
--- a/drivers/ide/h8300/ide-h8300.c
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -101,7 +101,7 @@ void __init h8300_ide_init(void)
         hw_setup(&hw);
 
         /* register if */
-        idx = ide_register_hw(&hw, &hwif);
+        idx = ide_register_hw(&hw, 1, &hwif);
         if (idx == -1) {
                 printk(KERN_ERR "ide-h8300: IDE I/F register failed\n");
                 return;
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 638becda81c6..252ab8295edf 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -3059,10 +3059,14 @@ int ide_cdrom_probe_capabilities (ide_drive_t *drive)
         return nslots;
 }
 
+#ifdef CONFIG_IDE_PROC_FS
 static void ide_cdrom_add_settings(ide_drive_t *drive)
 {
-        ide_add_setting(drive,  "dsc_overlap",          SETTING_RW, -1, -1, TYPE_BYTE, 0, 1, 1, 1, &drive->dsc_overlap, NULL);
+        ide_add_setting(drive, "dsc_overlap", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, &drive->dsc_overlap, NULL);
 }
+#else
+static inline void ide_cdrom_add_settings(ide_drive_t *drive) { ; }
+#endif
 
 /*
  * standard prep_rq_fn that builds 10 byte cmds
@@ -3274,7 +3278,7 @@ int ide_cdrom_setup (ide_drive_t *drive)
         return 0;
 }
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_IDE_PROC_FS
 static
 sector_t ide_cdrom_capacity (ide_drive_t *drive)
 {
@@ -3291,7 +3295,7 @@ static void ide_cd_remove(ide_drive_t *drive)
 {
         struct cdrom_info *info = drive->driver_data;
 
-        ide_unregister_subdriver(drive, info->driver);
+        ide_proc_unregister_driver(drive, info->driver);
 
         del_gendisk(info->disk);
 
@@ -3321,7 +3325,7 @@ static void ide_cd_release(struct kref *kref)
 
 static int ide_cd_probe(ide_drive_t *);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_IDE_PROC_FS
 static int proc_idecd_read_capacity
         (char *page, char **start, off_t off, int count, int *eof, void *data)
 {
@@ -3336,8 +3340,6 @@ static ide_proc_entry_t idecd_proc[] = {
         { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL },
         { NULL, 0, NULL, NULL }
 };
-#else
-# define idecd_proc     NULL
 #endif
 
 static ide_driver_t ide_cdrom_driver = {
@@ -3355,7 +3357,9 @@ static ide_driver_t ide_cdrom_driver = {
         .end_request            = ide_end_request,
         .error                  = __ide_error,
         .abort                  = __ide_abort,
+#ifdef CONFIG_IDE_PROC_FS
         .proc                   = idecd_proc,
+#endif
 };
 
 static int idecd_open(struct inode * inode, struct file * file)
@@ -3517,7 +3521,7 @@ static int ide_cd_probe(ide_drive_t *drive)
 
         ide_init_disk(g, drive);
 
-        ide_register_subdriver(drive, &ide_cdrom_driver);
+        ide_proc_register_driver(drive, &ide_cdrom_driver);
 
         kref_init(&info->kref);
 
@@ -3534,7 +3538,7 @@ static int ide_cd_probe(ide_drive_t *drive)
         g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
         if (ide_cdrom_setup(drive)) {
                 struct cdrom_device_info *devinfo = &info->devinfo;
-                ide_unregister_subdriver(drive, &ide_cdrom_driver);
+                ide_proc_unregister_driver(drive, &ide_cdrom_driver);
                 kfree(info->buffer);
                 kfree(info->toc);
                 kfree(info->changer_info);
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 37aa6ddd9702..7fff773f2df7 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -559,8 +559,7 @@ static sector_t idedisk_capacity (ide_drive_t *drive)
         return drive->capacity64 - drive->sect0;
 }
 
-#ifdef CONFIG_PROC_FS
-
+#ifdef CONFIG_IDE_PROC_FS
 static int smart_enable(ide_drive_t *drive)
 {
         ide_task_t args;
@@ -678,12 +677,7 @@ static ide_proc_entry_t idedisk_proc[] = {
         { "smart_thresholds",   S_IFREG|S_IRUSR,        proc_idedisk_read_smart_thresholds,     NULL },
         { NULL, 0, NULL, NULL }
 };
-
-#else
-
-#define idedisk_proc    NULL
-
-#endif  /* CONFIG_PROC_FS */
+#endif  /* CONFIG_IDE_PROC_FS */
 
 static void idedisk_prepare_flush(request_queue_t *q, struct request *rq)
 {
@@ -737,6 +731,9 @@ static int set_multcount(ide_drive_t *drive, int arg)
 {
         struct request rq;
 
+        if (arg < 0 || arg > drive->id->max_multsect)
+                return -EINVAL;
+
         if (drive->special.b.set_multmode)
                 return -EBUSY;
         ide_init_drive_cmd (&rq);
@@ -749,6 +746,9 @@ static int set_multcount(ide_drive_t *drive, int arg)
 
 static int set_nowerr(ide_drive_t *drive, int arg)
 {
+        if (arg < 0 || arg > 1)
+                return -EINVAL;
+
         if (ide_spin_wait_hwgroup(drive))
                 return -EBUSY;
         drive->nowerr = arg;
@@ -800,6 +800,9 @@ static int write_cache(ide_drive_t *drive, int arg)
         ide_task_t args;
         int err = 1;
 
+        if (arg < 0 || arg > 1)
+                return -EINVAL;
+
         if (ide_id_has_flush_cache(drive->id)) {
                 memset(&args, 0, sizeof(ide_task_t));
                 args.tfRegister[IDE_FEATURE_OFFSET]     = (arg) ?
@@ -835,6 +838,9 @@ static int set_acoustic (ide_drive_t *drive, int arg)
 {
         ide_task_t args;
 
+        if (arg < 0 || arg > 254)
+                return -EINVAL;
+
         memset(&args, 0, sizeof(ide_task_t));
         args.tfRegister[IDE_FEATURE_OFFSET]     = (arg) ? SETFEATURES_EN_AAM :
                                                           SETFEATURES_DIS_AAM;
@@ -855,6 +861,9 @@ static int set_acoustic (ide_drive_t *drive, int arg)
  */
 static int set_lba_addressing(ide_drive_t *drive, int arg)
 {
+        if (arg < 0 || arg > 2)
+                return -EINVAL;
+
         drive->addressing =  0;
 
         if (HWIF(drive)->no_lba48)
@@ -866,23 +875,27 @@ static int set_lba_addressing(ide_drive_t *drive, int arg)
         return 0;
 }
 
+#ifdef CONFIG_IDE_PROC_FS
 static void idedisk_add_settings(ide_drive_t *drive)
 {
         struct hd_driveid *id = drive->id;
 
-        ide_add_setting(drive,  "bios_cyl",             SETTING_RW,                                     -1,                     -1,                     TYPE_INT,       0,      65535,                          1,      1,      &drive->bios_cyl,               NULL);
-        ide_add_setting(drive,  "bios_head",            SETTING_RW,                                     -1,                     -1,                     TYPE_BYTE,      0,      255,                            1,      1,      &drive->bios_head,              NULL);
-        ide_add_setting(drive,  "bios_sect",            SETTING_RW,                                     -1,                     -1,                     TYPE_BYTE,      0,      63,                             1,      1,      &drive->bios_sect,              NULL);
-        ide_add_setting(drive,  "address",              SETTING_RW,                                     HDIO_GET_ADDRESS,       HDIO_SET_ADDRESS,       TYPE_INTA,      0,      2,                              1,      1,      &drive->addressing,     set_lba_addressing);
-        ide_add_setting(drive,  "bswap",                SETTING_READ,                                   -1,                     -1,                     TYPE_BYTE,      0,      1,                              1,      1,      &drive->bswap,                  NULL);
-        ide_add_setting(drive,  "multcount",            id ? SETTING_RW : SETTING_READ,                 HDIO_GET_MULTCOUNT,     HDIO_SET_MULTCOUNT,     TYPE_BYTE,      0,      id ? id->max_multsect : 0,      1,      1,      &drive->mult_count,             set_multcount);
-        ide_add_setting(drive,  "nowerr",               SETTING_RW,                                     HDIO_GET_NOWERR,        HDIO_SET_NOWERR,        TYPE_BYTE,      0,      1,                              1,      1,      &drive->nowerr,                 set_nowerr);
-        ide_add_setting(drive,  "lun",                  SETTING_RW,                                     -1,                     -1,                     TYPE_INT,       0,      7,                              1,      1,      &drive->lun,                    NULL);
-        ide_add_setting(drive,  "wcache",               SETTING_RW,                                     HDIO_GET_WCACHE,        HDIO_SET_WCACHE,        TYPE_BYTE,      0,      1,                              1,      1,      &drive->wcache,                 write_cache);
-        ide_add_setting(drive,  "acoustic",             SETTING_RW,                                     HDIO_GET_ACOUSTIC,      HDIO_SET_ACOUSTIC,      TYPE_BYTE,      0,      254,                            1,      1,      &drive->acoustic,               set_acoustic);
-        ide_add_setting(drive,  "failures",             SETTING_RW,                                     -1,                     -1,                     TYPE_INT,       0,      65535,                          1,      1,      &drive->failures,               NULL);
-        ide_add_setting(drive,  "max_failures",         SETTING_RW,                                     -1,                     -1,                     TYPE_INT,       0,      65535,                          1,      1,      &drive->max_failures,           NULL);
+        ide_add_setting(drive,  "bios_cyl",     SETTING_RW,     TYPE_INT,       0,      65535,                  1,      1,      &drive->bios_cyl,       NULL);
+        ide_add_setting(drive,  "bios_head",    SETTING_RW,     TYPE_BYTE,      0,      255,                    1,      1,      &drive->bios_head,      NULL);
+        ide_add_setting(drive,  "bios_sect",    SETTING_RW,     TYPE_BYTE,      0,      63,                     1,      1,      &drive->bios_sect,      NULL);
+        ide_add_setting(drive,  "address",      SETTING_RW,     TYPE_BYTE,      0,      2,                      1,      1,      &drive->addressing,     set_lba_addressing);
+        ide_add_setting(drive,  "bswap",        SETTING_READ,   TYPE_BYTE,      0,      1,                      1,      1,      &drive->bswap,          NULL);
+        ide_add_setting(drive,  "multcount",    SETTING_RW,     TYPE_BYTE,      0,      id->max_multsect,       1,      1,      &drive->mult_count,     set_multcount);
+        ide_add_setting(drive,  "nowerr",       SETTING_RW,     TYPE_BYTE,      0,      1,                      1,      1,      &drive->nowerr,         set_nowerr);
+        ide_add_setting(drive,  "lun",          SETTING_RW,     TYPE_INT,       0,      7,                      1,      1,      &drive->lun,            NULL);
+        ide_add_setting(drive,  "wcache",       SETTING_RW,     TYPE_BYTE,      0,      1,                      1,      1,      &drive->wcache,         write_cache);
+        ide_add_setting(drive,  "acoustic",     SETTING_RW,     TYPE_BYTE,      0,      254,                    1,      1,      &drive->acoustic,       set_acoustic);
+        ide_add_setting(drive,  "failures",     SETTING_RW,     TYPE_INT,       0,      65535,                  1,      1,      &drive->failures,       NULL);
+        ide_add_setting(drive,  "max_failures", SETTING_RW,     TYPE_INT,       0,      65535,                  1,      1,      &drive->max_failures,   NULL);
 }
+#else
+static inline void idedisk_add_settings(ide_drive_t *drive) { ; }
+#endif
 
 static void idedisk_setup (ide_drive_t *drive)
 {
@@ -1001,7 +1014,7 @@ static void ide_disk_remove(ide_drive_t *drive)
         struct ide_disk_obj *idkp = drive->driver_data;
         struct gendisk *g = idkp->disk;
 
-        ide_unregister_subdriver(drive, idkp->driver);
+        ide_proc_unregister_driver(drive, idkp->driver);
 
         del_gendisk(g);
 
@@ -1066,7 +1079,9 @@ static ide_driver_t idedisk_driver = {
         .end_request            = ide_end_request,
         .error                  = __ide_error,
         .abort                  = __ide_abort,
+#ifdef CONFIG_IDE_PROC_FS
         .proc                   = idedisk_proc,
+#endif
 };
 
 static int idedisk_open(struct inode *inode, struct file *filp)
@@ -1140,9 +1155,49 @@ static int idedisk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 static int idedisk_ioctl(struct inode *inode, struct file *file,
                         unsigned int cmd, unsigned long arg)
 {
+        unsigned long flags;
         struct block_device *bdev = inode->i_bdev;
         struct ide_disk_obj *idkp = ide_disk_g(bdev->bd_disk);
-        return generic_ide_ioctl(idkp->drive, file, bdev, cmd, arg);
+        ide_drive_t *drive = idkp->drive;
+        int err, (*setfunc)(ide_drive_t *, int);
+        u8 *val;
+
+        switch (cmd) {
+        case HDIO_GET_ADDRESS:   val = &drive->addressing;      goto read_val;
+        case HDIO_GET_MULTCOUNT: val = &drive->mult_count;      goto read_val;
+        case HDIO_GET_NOWERR:    val = &drive->nowerr;          goto read_val;
+        case HDIO_GET_WCACHE:    val = &drive->wcache;          goto read_val;
+        case HDIO_GET_ACOUSTIC:  val = &drive->acoustic;        goto read_val;
+        case HDIO_SET_ADDRESS:   setfunc = set_lba_addressing;  goto set_val;
+        case HDIO_SET_MULTCOUNT: setfunc = set_multcount;       goto set_val;
+        case HDIO_SET_NOWERR:    setfunc = set_nowerr;          goto set_val;
+        case HDIO_SET_WCACHE:    setfunc = write_cache;         goto set_val;
+        case HDIO_SET_ACOUSTIC:  setfunc = set_acoustic;        goto set_val;
+        }
+
+        return generic_ide_ioctl(drive, file, bdev, cmd, arg);
+
+read_val:
+        down(&ide_setting_sem);
+        spin_lock_irqsave(&ide_lock, flags);
+        err = *val;
+        spin_unlock_irqrestore(&ide_lock, flags);
+        up(&ide_setting_sem);
+        return err >= 0 ? put_user(err, (long __user *)arg) : err;
+
+set_val:
+        if (bdev != bdev->bd_contains)
+                err = -EINVAL;
+        else {
+                if (!capable(CAP_SYS_ADMIN))
+                        err = -EACCES;
+                else {
+                        down(&ide_setting_sem);
+                        err = setfunc(drive, arg);
+                        up(&ide_setting_sem);
+                }
+        }
+        return err;
 }
 
 static int idedisk_media_changed(struct gendisk *disk)
@@ -1202,7 +1257,7 @@ static int ide_disk_probe(ide_drive_t *drive)
 
         ide_init_disk(g, drive);
 
-        ide_register_subdriver(drive, &idedisk_driver);
+        ide_proc_register_driver(drive, &idedisk_driver);
 
         kref_init(&idkp->kref);
 
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index fd213088b06b..5fe85191d49c 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -705,6 +705,100 @@ int ide_use_dma(ide_drive_t *drive)
 
 EXPORT_SYMBOL_GPL(ide_use_dma);
 
+static const u8 xfer_mode_bases[] = {
+        XFER_UDMA_0,
+        XFER_MW_DMA_0,
+        XFER_SW_DMA_0,
+};
+
+static unsigned int ide_get_mode_mask(ide_drive_t *drive, u8 base)
+{
+        struct hd_driveid *id = drive->id;
+        ide_hwif_t *hwif = drive->hwif;
+        unsigned int mask = 0;
+
+        switch(base) {
+        case XFER_UDMA_0:
+                if ((id->field_valid & 4) == 0)
+                        break;
+
+                mask = id->dma_ultra & hwif->ultra_mask;
+
+                if (hwif->udma_filter)
+                        mask &= hwif->udma_filter(drive);
+
+                if ((mask & 0x78) && (eighty_ninty_three(drive) == 0))
+                        mask &= 0x07;
+                break;
+        case XFER_MW_DMA_0:
+                mask = id->dma_mword & hwif->mwdma_mask;
+                break;
+        case XFER_SW_DMA_0:
+                mask = id->dma_1word & hwif->swdma_mask;
+                break;
+        default:
+                BUG();
+                break;
+        }
+
+        return mask;
+}
+
+/**
+ *      ide_max_dma_mode        -       compute DMA speed
+ *      @drive: IDE device
+ *
+ *      Checks the drive capabilities and returns the speed to use
+ *      for the DMA transfer.  Returns 0 if the drive is incapable
+ *      of DMA transfers.
+ */
+
+u8 ide_max_dma_mode(ide_drive_t *drive)
+{
+        ide_hwif_t *hwif = drive->hwif;
+        unsigned int mask;
+        int x, i;
+        u8 mode = 0;
+
+        if (drive->media != ide_disk && hwif->atapi_dma == 0)
+                return 0;
+
+        for (i = 0; i < ARRAY_SIZE(xfer_mode_bases); i++) {
+                mask = ide_get_mode_mask(drive, xfer_mode_bases[i]);
+                x = fls(mask) - 1;
+                if (x >= 0) {
+                        mode = xfer_mode_bases[i] + x;
+                        break;
+                }
+        }
+
+        printk(KERN_DEBUG "%s: selected mode 0x%x\n", drive->name, mode);
+
+        return mode;
+}
+
+EXPORT_SYMBOL_GPL(ide_max_dma_mode);
+
+int ide_tune_dma(ide_drive_t *drive)
+{
+        u8 speed;
+
+        /* TODO: use only ide_max_dma_mode() */
+        if (!ide_use_dma(drive))
+                return 0;
+
+        speed = ide_max_dma_mode(drive);
+
+        if (!speed)
+                return 0;
+
+        drive->hwif->speedproc(drive, speed);
+
+        return ide_dma_enable(drive);
+}
+
+EXPORT_SYMBOL_GPL(ide_tune_dma);
+
 void ide_dma_verbose(ide_drive_t *drive)
 {
         struct hd_driveid *id   = drive->id;
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 57cd21c5b2c1..f429be88c4f9 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -1811,18 +1811,22 @@ static int idefloppy_identify_device (ide_drive_t *drive,struct hd_driveid *id)
         return 0;
 }
 
+#ifdef CONFIG_IDE_PROC_FS
 static void idefloppy_add_settings(ide_drive_t *drive)
 {
         idefloppy_floppy_t *floppy = drive->driver_data;
 
 /*
- *                      drive   setting name    read/write      ioctl   ioctl           data type       min     max     mul_factor      div_factor      data pointer            set function
+ *                      drive   setting name    read/write      data type       min     max     mul_factor      div_factor      data pointer            set function
  */
-        ide_add_setting(drive,  "bios_cyl",             SETTING_RW,                                     -1,                     -1,                     TYPE_INT,       0,      1023,                           1,      1,      &drive->bios_cyl,               NULL);
-        ide_add_setting(drive,  "bios_head",            SETTING_RW,                                     -1,                     -1,                     TYPE_BYTE,      0,      255,                            1,      1,      &drive->bios_head,              NULL);
-        ide_add_setting(drive,  "bios_sect",            SETTING_RW,                                     -1,                     -1,                     TYPE_BYTE,      0,      63,                             1,      1,      &drive->bios_sect,              NULL);
-        ide_add_setting(drive,  "ticks",                SETTING_RW,                                     -1,                     -1,                     TYPE_BYTE,      0,      255,                            1,      1,      &floppy->ticks,         NULL);
+        ide_add_setting(drive,  "bios_cyl",     SETTING_RW,     TYPE_INT,       0,      1023,           1,              1,      &drive->bios_cyl,       NULL);
+        ide_add_setting(drive,  "bios_head",    SETTING_RW,     TYPE_BYTE,      0,      255,            1,              1,      &drive->bios_head,      NULL);
+        ide_add_setting(drive,  "bios_sect",    SETTING_RW,     TYPE_BYTE,      0,      63,             1,              1,      &drive->bios_sect,      NULL);
+        ide_add_setting(drive,  "ticks",        SETTING_RW,     TYPE_BYTE,      0,      255,            1,              1,      &floppy->ticks,         NULL);
 }
+#else
+static inline void idefloppy_add_settings(ide_drive_t *drive) { ; }
+#endif
 
 /*
  *      Driver initialization.
@@ -1873,7 +1877,7 @@ static void ide_floppy_remove(ide_drive_t *drive)
         idefloppy_floppy_t *floppy = drive->driver_data;
         struct gendisk *g = floppy->disk;
 
-        ide_unregister_subdriver(drive, floppy->driver);
+        ide_proc_unregister_driver(drive, floppy->driver);
 
         del_gendisk(g);
 
@@ -1892,8 +1896,7 @@ static void ide_floppy_release(struct kref *kref)
         kfree(floppy);
 }
 
-#ifdef CONFIG_PROC_FS
-
+#ifdef CONFIG_IDE_PROC_FS
 static int proc_idefloppy_read_capacity
         (char *page, char **start, off_t off, int count, int *eof, void *data)
 {
@@ -1909,12 +1912,7 @@ static ide_proc_entry_t idefloppy_proc[] = {
         { "geometry",   S_IFREG|S_IRUGO,        proc_ide_read_geometry, NULL },
         { NULL, 0, NULL, NULL }
 };
-
-#else
-
-#define idefloppy_proc  NULL
-
-#endif  /* CONFIG_PROC_FS */
+#endif  /* CONFIG_IDE_PROC_FS */
 
 static int ide_floppy_probe(ide_drive_t *);
 
@@ -1933,7 +1931,9 @@ static ide_driver_t idefloppy_driver = {
         .end_request            = idefloppy_do_end_request,
         .error                  = __ide_error,
         .abort                  = __ide_abort,
+#ifdef CONFIG_IDE_PROC_FS
         .proc                   = idefloppy_proc,
+#endif
 };
 
 static int idefloppy_open(struct inode *inode, struct file *filp)
@@ -2159,7 +2159,7 @@ static int ide_floppy_probe(ide_drive_t *drive)
 
         ide_init_disk(g, drive);
 
-        ide_register_subdriver(drive, &idefloppy_driver);
+        ide_proc_register_driver(drive, &idefloppy_driver);
 
         kref_init(&floppy->kref);
 
diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c
index 99fd56151131..0f72b98d727f 100644
--- a/drivers/ide/ide-generic.c
+++ b/drivers/ide/ide-generic.c
@@ -22,8 +22,6 @@ static int __init ide_generic_init(void)
         if (ide_hwifs[0].io_ports[IDE_DATA_OFFSET])
                 ide_release_lock();     /* for atari only */
 
-        create_proc_ide_interfaces();
-
         return 0;
 }
 
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 8670112f1d39..8e568143d90d 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -172,15 +172,6 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
 
         memset(args, 0, sizeof(*args));
 
-        if (drive->media != ide_disk) {
-                /*
-                 * skip idedisk_pm_restore_pio and idedisk_pm_idle for ATAPI
-                 * devices
-                 */
-                if (pm->pm_step == idedisk_pm_restore_pio)
-                        pm->pm_step = ide_pm_restore_dma;
-        }
-
         switch (pm->pm_step) {
         case ide_pm_flush_cache:        /* Suspend step 1 (flush cache) */
                 if (drive->media != ide_disk)
@@ -207,7 +198,13 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
         case idedisk_pm_restore_pio:    /* Resume step 1 (restore PIO) */
                 if (drive->hwif->tuneproc != NULL)
                         drive->hwif->tuneproc(drive, 255);
-                ide_complete_power_step(drive, rq, 0, 0);
+                /*
+                 * skip idedisk_pm_idle for ATAPI devices
+                 */
+                if (drive->media != ide_disk)
+                        pm->pm_step = ide_pm_restore_dma;
+                else
+                        ide_complete_power_step(drive, rq, 0, 0);
                 return ide_stopped;
 
         case idedisk_pm_idle:           /* Resume step 2 (idle) */
diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c
index 3caa176b3155..f0be5f665a0e 100644
--- a/drivers/ide/ide-iops.c
+++ b/drivers/ide/ide-iops.c
@@ -571,51 +571,54 @@ EXPORT_SYMBOL(ide_wait_stat);
  */
 u8 eighty_ninty_three (ide_drive_t *drive)
 {
-        if(HWIF(drive)->udma_four == 0)
-                return 0;
+        ide_hwif_t *hwif = drive->hwif;
+        struct hd_driveid *id = drive->id;
+
+        if (hwif->udma_four == 0)
+                goto no_80w;
 
         /* Check for SATA but only if we are ATA5 or higher */
-        if (drive->id->hw_config == 0 && (drive->id->major_rev_num & 0x7FE0))
+        if (id->hw_config == 0 && (id->major_rev_num & 0x7FE0))
                 return 1;
-        if (!(drive->id->hw_config & 0x6000))
-                return 0;
-#ifndef CONFIG_IDEDMA_IVB
-        if(!(drive->id->hw_config & 0x4000))
-                return 0;
-#endif /* CONFIG_IDEDMA_IVB */
+
         /*
          * FIXME:
          * - change master/slave IDENTIFY order
          * - force bit13 (80c cable present) check
          *   (unless the slave device is pre-ATA3)
          */
-        return 1;
-}
+#ifndef CONFIG_IDEDMA_IVB
+        if (id->hw_config & 0x4000)
+#else
+        if (id->hw_config & 0x6000)
+#endif
+                return 1;
+
+no_80w:
+        if (drive->udma33_warned == 1)
+                return 0;
 
-EXPORT_SYMBOL(eighty_ninty_three);
+        printk(KERN_WARNING "%s: %s side 80-wire cable detection failed, "
+                            "limiting max speed to UDMA33\n",
+                            drive->name, hwif->udma_four ? "drive" : "host");
+
+        drive->udma33_warned = 1;
+
+        return 0;
+}
 
 int ide_ata66_check (ide_drive_t *drive, ide_task_t *args)
 {
         if ((args->tfRegister[IDE_COMMAND_OFFSET] == WIN_SETFEATURES) &&
             (args->tfRegister[IDE_SECTOR_OFFSET] > XFER_UDMA_2) &&
             (args->tfRegister[IDE_FEATURE_OFFSET] == SETFEATURES_XFER)) {
-#ifndef CONFIG_IDEDMA_IVB
-                if ((drive->id->hw_config & 0x6000) == 0) {
-#else /* !CONFIG_IDEDMA_IVB */
-                if (((drive->id->hw_config & 0x2000) == 0) ||
-                    ((drive->id->hw_config & 0x4000) == 0)) {
-#endif /* CONFIG_IDEDMA_IVB */
-                        printk("%s: Speed warnings UDMA 3/4/5 is not "
-                                "functional.\n", drive->name);
-                        return 1;
-                }
-                if (!HWIF(drive)->udma_four) {
-                        printk("%s: Speed warnings UDMA 3/4/5 is not "
-                                "functional.\n",
-                                HWIF(drive)->name);
+                if (eighty_ninty_three(drive) == 0) {
+                        printk(KERN_WARNING "%s: UDMA speeds >UDMA33 cannot "
+                                            "be set\n", drive->name);
                         return 1;
                 }
         }
+
         return 0;
 }
 
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 68719314df3f..3be3c69383f2 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -69,123 +69,41 @@ char *ide_xfer_verbose (u8 xfer_rate)
 EXPORT_SYMBOL(ide_xfer_verbose);
 
 /**
- *      ide_dma_speed   -       compute DMA speed
- *      @drive: drive
- *      @mode:  modes available
- *
- *      Checks the drive capabilities and returns the speed to use
- *      for the DMA transfer.  Returns 0 if the drive is incapable
- *      of DMA transfers.
- */
- 
-u8 ide_dma_speed(ide_drive_t *drive, u8 mode)
-{
-        struct hd_driveid *id   = drive->id;
-        ide_hwif_t *hwif        = HWIF(drive);
-        u8 ultra_mask, mwdma_mask, swdma_mask;
-        u8 speed = 0;
-
-        if (drive->media != ide_disk && hwif->atapi_dma == 0)
-                return 0;
-
-        /* Capable of UltraDMA modes? */
-        ultra_mask = id->dma_ultra & hwif->ultra_mask;
-
-        if (!(id->field_valid & 4))
-                mode = 0;       /* fallback to MW/SW DMA if no UltraDMA */
-
-        switch (mode) {
-        case 4:
-                if (ultra_mask & 0x40) {
-                        speed = XFER_UDMA_6;
-                        break;
-                }
-        case 3:
-                if (ultra_mask & 0x20) {
-                        speed = XFER_UDMA_5;
-                        break;
-                }
-        case 2:
-                if (ultra_mask & 0x10) {
-                        speed = XFER_UDMA_4;
-                        break;
-                }
-                if (ultra_mask & 0x08) {
-                        speed = XFER_UDMA_3;
-                        break;
-                }
-        case 1:
-                if (ultra_mask & 0x04) {
-                        speed = XFER_UDMA_2;
-                        break;
-                }
-                if (ultra_mask & 0x02) {
-                        speed = XFER_UDMA_1;
-                        break;
-                }
-                if (ultra_mask & 0x01) {
-                        speed = XFER_UDMA_0;
-                        break;
-                }
-        case 0:
-                mwdma_mask = id->dma_mword & hwif->mwdma_mask;
-
-                if (mwdma_mask & 0x04) {
-                        speed = XFER_MW_DMA_2;
-                        break;
-                }
-                if (mwdma_mask & 0x02) {
-                        speed = XFER_MW_DMA_1;
-                        break;
-                }
-                if (mwdma_mask & 0x01) {
-                        speed = XFER_MW_DMA_0;
-                        break;
-                }
-
-                swdma_mask = id->dma_1word & hwif->swdma_mask;
-
-                if (swdma_mask & 0x04) {
-                        speed = XFER_SW_DMA_2;
-                        break;
-                }
-                if (swdma_mask & 0x02) {
-                        speed = XFER_SW_DMA_1;
-                        break;
-                }
-                if (swdma_mask & 0x01) {
-                        speed = XFER_SW_DMA_0;
-                        break;
-                }
-        }
-
-        return speed;
-}
-EXPORT_SYMBOL(ide_dma_speed);
-
-
-/**
- *      ide_rate_filter         -       return best speed for mode
- *      @mode: modes available
+ *      ide_rate_filter         -       filter transfer mode
+ *      @drive: IDE device
  *      @speed: desired speed
  *
- *      Given the available DMA/UDMA mode this function returns
+ *      Given the available transfer modes this function returns
  *      the best available speed at or below the speed requested.
+ *
+ *      FIXME: filter also PIO/SWDMA/MWDMA modes
  */
 
-u8 ide_rate_filter (u8 mode, u8 speed) 
+u8 ide_rate_filter(ide_drive_t *drive, u8 speed)
 {
 #ifdef CONFIG_BLK_DEV_IDEDMA
-        static u8 speed_max[] = {
-                XFER_MW_DMA_2, XFER_UDMA_2, XFER_UDMA_4,
-                XFER_UDMA_5, XFER_UDMA_6
-        };
+        ide_hwif_t *hwif = drive->hwif;
+        u8 mask = hwif->ultra_mask, mode = XFER_MW_DMA_2;
+
+        if (hwif->udma_filter)
+                mask = hwif->udma_filter(drive);
+
+        /*
+         * TODO: speed > XFER_UDMA_2 extra check is needed to avoid false
+         * cable warning from eighty_ninty_three(), moving ide_rate_filter()
+         * calls from ->speedproc to core code will make this hack go away
+         */
+        if (speed > XFER_UDMA_2) {
+                if ((mask & 0x78) && (eighty_ninty_three(drive) == 0))
+                        mask &= 0x07;
+        }
+
+        if (mask)
+                mode = fls(mask) - 1 + XFER_UDMA_0;
 
 //      printk("%s: mode 0x%02x, speed 0x%02x\n", __FUNCTION__, mode, speed);
 
-        /* So that we remember to update this if new modes appear */
-        BUG_ON(mode > 4);
-        return min(speed, speed_max[mode]);
+        return min(speed, mode);
 #else /* !CONFIG_BLK_DEV_IDEDMA */
         return min(speed, (u8)XFER_PIO_4);
 #endif /* CONFIG_BLK_DEV_IDEDMA */
diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c
index 98410ca044cf..2b8009c50e91 100644
--- a/drivers/ide/ide-pnp.c
+++ b/drivers/ide/ide-pnp.c
@@ -42,7 +42,7 @@ static int idepnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id
         hw.irq = pnp_irq(dev, 0);
         hw.dma = NO_DMA;
 
-        index = ide_register_hw(&hw, &hwif);
+        index = ide_register_hw(&hw, 1, &hwif);
 
         if (index != -1) {
                 printk(KERN_INFO "ide%d: generic PnP IDE interface\n", index);
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 8f15c23aa70d..3cebed77f55d 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1427,6 +1427,9 @@ int ideprobe_init (void)
                                 }
                 }
         }
+        for (index = 0; index < MAX_HWIFS; ++index)
+                if (probe[index])
+                        ide_proc_register_port(&ide_hwifs[index]);
         return 0;
 }
 
diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c
index a9e0b30fb1f2..d50bd996ff22 100644
--- a/drivers/ide/ide-proc.c
+++ b/drivers/ide/ide-proc.c
@@ -3,6 +3,8 @@
  *
  *  Copyright (C) 1997-1998     Mark Lord
  *  Copyright (C) 2003          Red Hat <alan@redhat.com>
+ *
+ *  Some code was moved here from ide.c, see it for original copyrights.
  */
 
 /*
@@ -37,6 +39,8 @@
 
 #include <asm/io.h>
 
+static struct proc_dir_entry *proc_ide_root;
+
 static int proc_ide_read_imodel
         (char *page, char **start, off_t off, int count, int *eof, void *data)
 {
@@ -121,6 +125,265 @@ static int proc_ide_read_identify
         PROC_IDE_READ_RETURN(page,start,off,count,eof,len);
 }
 
+/**
+ *      __ide_add_setting       -       add an ide setting option
+ *      @drive: drive to use
+ *      @name: setting name
+ *      @rw: true if the function is read write
+ *      @data_type: type of data
+ *      @min: range minimum
+ *      @max: range maximum
+ *      @mul_factor: multiplication scale
+ *      @div_factor: divison scale
+ *      @data: private data field
+ *      @set: setting
+ *      @auto_remove: setting auto removal flag
+ *
+ *      Removes the setting named from the device if it is present.
+ *      The function takes the settings_lock to protect against
+ *      parallel changes. This function must not be called from IRQ
+ *      context. Returns 0 on success or -1 on failure.
+ *
+ *      BUGS: This code is seriously over-engineered. There is also
+ *      magic about how the driver specific features are setup. If
+ *      a driver is attached we assume the driver settings are auto
+ *      remove.
+ */
+
+static int __ide_add_setting(ide_drive_t *drive, const char *name, int rw, int data_type, int min, int max, int mul_factor, int div_factor, void *data, ide_procset_t *set, int auto_remove)
+{
+        ide_settings_t **p = (ide_settings_t **) &drive->settings, *setting = NULL;
+
+        down(&ide_setting_sem);
+        while ((*p) && strcmp((*p)->name, name) < 0)
+                p = &((*p)->next);
+        if ((setting = kzalloc(sizeof(*setting), GFP_KERNEL)) == NULL)
+                goto abort;
+        if ((setting->name = kmalloc(strlen(name) + 1, GFP_KERNEL)) == NULL)
+                goto abort;
+        strcpy(setting->name, name);
+        setting->rw = rw;
+        setting->data_type = data_type;
+        setting->min = min;
+        setting->max = max;
+        setting->mul_factor = mul_factor;
+        setting->div_factor = div_factor;
+        setting->data = data;
+        setting->set = set;
+
+        setting->next = *p;
+        if (auto_remove)
+                setting->auto_remove = 1;
+        *p = setting;
+        up(&ide_setting_sem);
+        return 0;
+abort:
+        up(&ide_setting_sem);
+        kfree(setting);
+        return -1;
+}
+
+int ide_add_setting(ide_drive_t *drive, const char *name, int rw, int data_type, int min, int max, int mul_factor, int div_factor, void *data, ide_procset_t *set)
+{
+        return __ide_add_setting(drive, name, rw, data_type, min, max, mul_factor, div_factor, data, set, 1);
+}
+
+EXPORT_SYMBOL(ide_add_setting);
+
+/**
+ *      __ide_remove_setting    -       remove an ide setting option
+ *      @drive: drive to use
+ *      @name: setting name
+ *
+ *      Removes the setting named from the device if it is present.
+ *      The caller must hold the setting semaphore.
+ */
+
+static void __ide_remove_setting (ide_drive_t *drive, char *name)
+{
+        ide_settings_t **p, *setting;
+
+        p = (ide_settings_t **) &drive->settings;
+
+        while ((*p) && strcmp((*p)->name, name))
+                p = &((*p)->next);
+        if ((setting = (*p)) == NULL)
+                return;
+
+        (*p) = setting->next;
+
+        kfree(setting->name);
+        kfree(setting);
+}
+
+/**
+ *      auto_remove_settings    -       remove driver specific settings
+ *      @drive: drive
+ *
+ *      Automatically remove all the driver specific settings for this
+ *      drive. This function may not be called from IRQ context. The
+ *      caller must hold ide_setting_sem.
+ */
+
+static void auto_remove_settings (ide_drive_t *drive)
+{
+        ide_settings_t *setting;
+repeat:
+        setting = drive->settings;
+        while (setting) {
+                if (setting->auto_remove) {
+                        __ide_remove_setting(drive, setting->name);
+                        goto repeat;
+                }
+                setting = setting->next;
+        }
+}
+
+/**
+ *      ide_find_setting_by_name        -       find a drive specific setting
+ *      @drive: drive to scan
+ *      @name: setting name
+ *
+ *      Scan's the device setting table for a matching entry and returns
+ *      this or NULL if no entry is found. The caller must hold the
+ *      setting semaphore
+ */
+
+static ide_settings_t *ide_find_setting_by_name(ide_drive_t *drive, char *name)
+{
+        ide_settings_t *setting = drive->settings;
+
+        while (setting) {
+                if (strcmp(setting->name, name) == 0)
+                        break;
+                setting = setting->next;
+        }
+        return setting;
+}
+
+/**
+ *      ide_read_setting        -       read an IDE setting
+ *      @drive: drive to read from
+ *      @setting: drive setting
+ *
+ *      Read a drive setting and return the value. The caller
+ *      must hold the ide_setting_sem when making this call.
+ *
+ *      BUGS: the data return and error are the same return value
+ *      so an error -EINVAL and true return of the same value cannot
+ *      be told apart
+ */
+
+static int ide_read_setting(ide_drive_t *drive, ide_settings_t *setting)
+{
+        int             val = -EINVAL;
+        unsigned long   flags;
+
+        if ((setting->rw & SETTING_READ)) {
+                spin_lock_irqsave(&ide_lock, flags);
+                switch(setting->data_type) {
+                        case TYPE_BYTE:
+                                val = *((u8 *) setting->data);
+                                break;
+                        case TYPE_SHORT:
+                                val = *((u16 *) setting->data);
+                                break;
+                        case TYPE_INT:
+                                val = *((u32 *) setting->data);
+                                break;
+                }
+                spin_unlock_irqrestore(&ide_lock, flags);
+        }
+        return val;
+}
+
+/**
+ *      ide_write_setting       -       read an IDE setting
+ *      @drive: drive to read from
+ *      @setting: drive setting
+ *      @val: value
+ *
+ *      Write a drive setting if it is possible. The caller
+ *      must hold the ide_setting_sem when making this call.
+ *
+ *      BUGS: the data return and error are the same return value
+ *      so an error -EINVAL and true return of the same value cannot
+ *      be told apart
+ *
+ *      FIXME:  This should be changed to enqueue a special request
+ *      to the driver to change settings, and then wait on a sema for completion.
+ *      The current scheme of polling is kludgy, though safe enough.
+ */
+
+static int ide_write_setting(ide_drive_t *drive, ide_settings_t *setting, int val)
+{
+        if (!capable(CAP_SYS_ADMIN))
+                return -EACCES;
+        if (setting->set)
+                return setting->set(drive, val);
+        if (!(setting->rw & SETTING_WRITE))
+                return -EPERM;
+        if (val < setting->min || val > setting->max)
+                return -EINVAL;
+        if (ide_spin_wait_hwgroup(drive))
+                return -EBUSY;
+        switch (setting->data_type) {
+                case TYPE_BYTE:
+                        *((u8 *) setting->data) = val;
+                        break;
+                case TYPE_SHORT:
+                        *((u16 *) setting->data) = val;
+                        break;
+                case TYPE_INT:
+                        *((u32 *) setting->data) = val;
+                        break;
+        }
+        spin_unlock_irq(&ide_lock);
+        return 0;
+}
+
+static int set_xfer_rate (ide_drive_t *drive, int arg)
+{
+        int err;
+
+        if (arg < 0 || arg > 70)
+                return -EINVAL;
+
+        err = ide_wait_cmd(drive,
+                        WIN_SETFEATURES, (u8) arg,
+                        SETFEATURES_XFER, 0, NULL);
+
+        if (!err && arg) {
+                ide_set_xfer_rate(drive, (u8) arg);
+                ide_driveid_update(drive);
+        }
+        return err;
+}
+
+/**
+ *      ide_add_generic_settings        -       generic ide settings
+ *      @drive: drive being configured
+ *
+ *      Add the generic parts of the system settings to the /proc files.
+ *      The caller must not be holding the ide_setting_sem.
+ */
+
+void ide_add_generic_settings (ide_drive_t *drive)
+{
+/*
+ *                        drive         setting name            read/write access                               data type       min     max                             mul_factor      div_factor      data pointer                    set function
+ */
+        __ide_add_setting(drive,        "io_32bit",             drive->no_io_32bit ? SETTING_READ : SETTING_RW, TYPE_BYTE,      0,      1 + (SUPPORT_VLB_SYNC << 1),    1,              1,              &drive->io_32bit,               set_io_32bit,   0);
+        __ide_add_setting(drive,        "keepsettings",         SETTING_RW,                                     TYPE_BYTE,      0,      1,                              1,              1,              &drive->keep_settings,          NULL,           0);
+        __ide_add_setting(drive,        "nice1",                SETTING_RW,                                     TYPE_BYTE,      0,      1,                              1,              1,              &drive->nice1,                  NULL,           0);
+        __ide_add_setting(drive,        "pio_mode",             SETTING_WRITE,                                  TYPE_BYTE,      0,      255,                            1,              1,              NULL,                           set_pio_mode,   0);
+        __ide_add_setting(drive,        "unmaskirq",            drive->no_unmask ? SETTING_READ : SETTING_RW,   TYPE_BYTE,      0,      1,                              1,              1,              &drive->unmask,                 NULL,           0);
+        __ide_add_setting(drive,        "using_dma",            SETTING_RW,                                     TYPE_BYTE,      0,      1,                              1,              1,              &drive->using_dma,              set_using_dma,  0);
+        __ide_add_setting(drive,        "init_speed",           SETTING_RW,                                     TYPE_BYTE,      0,      70,                             1,              1,              &drive->init_speed,             NULL,           0);
+        __ide_add_setting(drive,        "current_speed",        SETTING_RW,                                     TYPE_BYTE,      0,      70,                             1,              1,              &drive->current_speed,          set_xfer_rate,  0);
+        __ide_add_setting(drive,        "number",               SETTING_RW,                                     TYPE_BYTE,      0,      3,                              1,              1,              &drive->dn,                     NULL,           0);
+}
+
 static void proc_ide_settings_warn(void)
 {
         static int warned = 0;
@@ -399,7 +662,7 @@ static ide_proc_entry_t generic_drive_entries[] = {
         { NULL, 0, NULL, NULL }
 };
 
-void ide_add_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p, void *data)
+static void ide_add_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p, void *data)
 {
         struct proc_dir_entry *ent;
 
@@ -415,7 +678,7 @@ void ide_add_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p, void
         }
 }
 
-void ide_remove_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p)
+static void ide_remove_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p)
 {
         if (!dir || !p)
                 return;
@@ -425,6 +688,51 @@ void ide_remove_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p)
         }
 }
 
+void ide_proc_register_driver(ide_drive_t *drive, ide_driver_t *driver)
+{
+        ide_add_proc_entries(drive->proc, driver->proc, drive);
+}
+
+EXPORT_SYMBOL(ide_proc_register_driver);
+
+/**
+ *      ide_proc_unregister_driver      -       remove driver specific data
+ *      @drive: drive
+ *      @driver: driver
+ *
+ *      Clean up the driver specific /proc files and IDE settings
+ *      for a given drive.
+ *
+ *      Takes ide_setting_sem and ide_lock.
+ *      Caller must hold none of the locks.
+ */
+
+void ide_proc_unregister_driver(ide_drive_t *drive, ide_driver_t *driver)
+{
+        unsigned long flags;
+
+        ide_remove_proc_entries(drive->proc, driver->proc);
+
+        down(&ide_setting_sem);
+        spin_lock_irqsave(&ide_lock, flags);
+        /*
+         * ide_setting_sem protects the settings list
+         * ide_lock protects the use of settings
+         *
+         * so we need to hold both, ide_settings_sem because we want to
+         * modify the settings list, and ide_lock because we cannot take
+         * a setting out that is being used.
+         *
+         * OTOH both ide_{read,write}_setting are only ever used under
+         * ide_setting_sem.
+         */
+        auto_remove_settings(drive);
+        spin_unlock_irqrestore(&ide_lock, flags);
+        up(&ide_setting_sem);
+}
+
+EXPORT_SYMBOL(ide_proc_unregister_driver);
+
 static void create_proc_ide_drives(ide_hwif_t *hwif)
 {
         int     d;
@@ -477,26 +785,24 @@ static ide_proc_entry_t hwif_entries[] = {
         { NULL, 0, NULL, NULL }
 };
 
-void create_proc_ide_interfaces(void)
+void ide_proc_register_port(ide_hwif_t *hwif)
 {
-        int     h;
+        if (!hwif->present)
+                return;
 
-        for (h = 0; h < MAX_HWIFS; h++) {
-                ide_hwif_t *hwif = &ide_hwifs[h];
+        if (!hwif->proc) {
+                hwif->proc = proc_mkdir(hwif->name, proc_ide_root);
 
-                if (!hwif->present)
-                        continue;
-                if (!hwif->proc) {
-                        hwif->proc = proc_mkdir(hwif->name, proc_ide_root);
-                        if (!hwif->proc)
-                                return;
-                        ide_add_proc_entries(hwif->proc, hwif_entries, hwif);
-                }
-                create_proc_ide_drives(hwif);
+                if (!hwif->proc)
+                        return;
+
+                ide_add_proc_entries(hwif->proc, hwif_entries, hwif);
         }
+
+        create_proc_ide_drives(hwif);
 }
 
-EXPORT_SYMBOL(create_proc_ide_interfaces);
+EXPORT_SYMBOL_GPL(ide_proc_register_port);
 
 #ifdef CONFIG_BLK_DEV_IDEPCI
 void ide_pci_create_host_proc(const char *name, get_info_t *get_info)
@@ -507,7 +813,7 @@ void ide_pci_create_host_proc(const char *name, get_info_t *get_info)
 EXPORT_SYMBOL_GPL(ide_pci_create_host_proc);
 #endif
 
-void destroy_proc_ide_interface(ide_hwif_t *hwif)
+void ide_proc_unregister_port(ide_hwif_t *hwif)
 {
         if (hwif->proc) {
                 destroy_proc_ide_drives(hwif);
@@ -554,11 +860,11 @@ void proc_ide_create(void)
 {
         struct proc_dir_entry *entry;
 
+        proc_ide_root = proc_mkdir("ide", NULL);
+
         if (!proc_ide_root)
                 return;
 
-        create_proc_ide_interfaces();
-
         entry = create_proc_entry("drivers", 0, proc_ide_root);
         if (entry)
                 entry->proc_fops = &ide_drivers_operations;
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 4e59239fef75..e82bfa5e0ab8 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -4561,28 +4561,33 @@ static void idetape_get_blocksize_from_block_descriptor(ide_drive_t *drive)
         printk(KERN_INFO "ide-tape: Adjusted block size - %d\n", tape->tape_block_size);
 #endif /* IDETAPE_DEBUG_INFO */
 }
+
+#ifdef CONFIG_IDE_PROC_FS
 static void idetape_add_settings (ide_drive_t *drive)
 {
         idetape_tape_t *tape = drive->driver_data;
 
 /*
- *                      drive   setting name    read/write      ioctl   ioctl           data type       min                     max                     mul_factor                      div_factor                      data pointer                            set function
+ *                      drive   setting name            read/write      data type       min                     max                     mul_factor                      div_factor      data pointer                            set function
  */
-        ide_add_setting(drive,  "buffer",       SETTING_READ,   -1,     -1,             TYPE_SHORT,     0,                      0xffff,                 1,                              2,                              &tape->capabilities.buffer_size,        NULL);
-        ide_add_setting(drive,  "pipeline_min", SETTING_RW,     -1,     -1,             TYPE_INT,       1,                      0xffff,                 tape->stage_size / 1024,        1,                              &tape->min_pipeline,                    NULL);
-        ide_add_setting(drive,  "pipeline",     SETTING_RW,     -1,     -1,             TYPE_INT,       1,                      0xffff,                 tape->stage_size / 1024,        1,                              &tape->max_stages,                      NULL);
-        ide_add_setting(drive,  "pipeline_max", SETTING_RW,     -1,     -1,             TYPE_INT,       1,                      0xffff,                 tape->stage_size / 1024,        1,                              &tape->max_pipeline,                    NULL);
-        ide_add_setting(drive,  "pipeline_used",SETTING_READ,   -1,     -1,             TYPE_INT,       0,                      0xffff,                 tape->stage_size / 1024,        1,                              &tape->nr_stages,                       NULL);
-        ide_add_setting(drive,  "pipeline_pending",SETTING_READ,-1,     -1,             TYPE_INT,       0,                      0xffff,                 tape->stage_size / 1024,        1,                              &tape->nr_pending_stages,               NULL);
-        ide_add_setting(drive,  "speed",        SETTING_READ,   -1,     -1,             TYPE_SHORT,     0,                      0xffff,                 1,                              1,                              &tape->capabilities.speed,              NULL);
-        ide_add_setting(drive,  "stage",        SETTING_READ,   -1,     -1,             TYPE_INT,       0,                      0xffff,                 1,                              1024,                           &tape->stage_size,                      NULL);
-        ide_add_setting(drive,  "tdsc",         SETTING_RW,     -1,     -1,             TYPE_INT,       IDETAPE_DSC_RW_MIN,     IDETAPE_DSC_RW_MAX,     1000,                           HZ,                             &tape->best_dsc_rw_frequency,           NULL);
-        ide_add_setting(drive,  "dsc_overlap",  SETTING_RW,     -1,     -1,             TYPE_BYTE,      0,                      1,                      1,                              1,                              &drive->dsc_overlap,                    NULL);
-        ide_add_setting(drive,  "pipeline_head_speed_c",SETTING_READ,   -1,     -1,     TYPE_INT,       0,                      0xffff,                 1,                              1,                              &tape->controlled_pipeline_head_speed,  NULL);
-        ide_add_setting(drive,  "pipeline_head_speed_u",SETTING_READ,   -1,     -1,     TYPE_INT,       0,                      0xffff,                 1,                              1,                              &tape->uncontrolled_pipeline_head_speed,        NULL);
-        ide_add_setting(drive,  "avg_speed",    SETTING_READ,   -1,     -1,             TYPE_INT,       0,                      0xffff,                 1,                              1,                              &tape->avg_speed,               NULL);
-        ide_add_setting(drive,  "debug_level",SETTING_RW,       -1,     -1,             TYPE_INT,       0,                      0xffff,                 1,                              1,                              &tape->debug_level,             NULL);
+        ide_add_setting(drive,  "buffer",               SETTING_READ,   TYPE_SHORT,     0,                      0xffff,                 1,                              2,              &tape->capabilities.buffer_size,        NULL);
+        ide_add_setting(drive,  "pipeline_min",         SETTING_RW,     TYPE_INT,       1,                      0xffff,                 tape->stage_size / 1024,        1,              &tape->min_pipeline,                    NULL);
+        ide_add_setting(drive,  "pipeline",             SETTING_RW,     TYPE_INT,       1,                      0xffff,                 tape->stage_size / 1024,        1,              &tape->max_stages,                      NULL);
+        ide_add_setting(drive,  "pipeline_max",         SETTING_RW,     TYPE_INT,       1,                      0xffff,                 tape->stage_size / 1024,        1,              &tape->max_pipeline,                    NULL);
+        ide_add_setting(drive,  "pipeline_used",        SETTING_READ,   TYPE_INT,       0,                      0xffff,                 tape->stage_size / 1024,        1,              &tape->nr_stages,                       NULL);
+        ide_add_setting(drive,  "pipeline_pending",     SETTING_READ,   TYPE_INT,       0,                      0xffff,                 tape->stage_size / 1024,        1,              &tape->nr_pending_stages,               NULL);
+        ide_add_setting(drive,  "speed",                SETTING_READ,   TYPE_SHORT,     0,                      0xffff,                 1,                              1,              &tape->capabilities.speed,              NULL);
+        ide_add_setting(drive,  "stage",                SETTING_READ,   TYPE_INT,       0,                      0xffff,                 1,                              1024,           &tape->stage_size,                      NULL);
+        ide_add_setting(drive,  "tdsc",                 SETTING_RW,     TYPE_INT,       IDETAPE_DSC_RW_MIN,     IDETAPE_DSC_RW_MAX,     1000,                           HZ,             &tape->best_dsc_rw_frequency,           NULL);
+        ide_add_setting(drive,  "dsc_overlap",          SETTING_RW,     TYPE_BYTE,      0,                      1,                      1,                              1,              &drive->dsc_overlap,                    NULL);
+        ide_add_setting(drive,  "pipeline_head_speed_c",SETTING_READ,   TYPE_INT,       0,                      0xffff,                 1,                              1,              &tape->controlled_pipeline_head_speed,  NULL);
+        ide_add_setting(drive,  "pipeline_head_speed_u",SETTING_READ,   TYPE_INT,       0,                      0xffff,                 1,                              1,              &tape->uncontrolled_pipeline_head_speed,NULL);
+        ide_add_setting(drive,  "avg_speed",            SETTING_READ,   TYPE_INT,       0,                      0xffff,                 1,                              1,              &tape->avg_speed,                       NULL);
+        ide_add_setting(drive,  "debug_level",          SETTING_RW,     TYPE_INT,       0,                      0xffff,                 1,                              1,              &tape->debug_level,                     NULL);
 }
+#else
+static inline void idetape_add_settings(ide_drive_t *drive) { ; }
+#endif
 
 /*
  *      ide_setup is called to:
@@ -4703,7 +4708,7 @@ static void ide_tape_remove(ide_drive_t *drive)
 {
         idetape_tape_t *tape = drive->driver_data;
 
-        ide_unregister_subdriver(drive, tape->driver);
+        ide_proc_unregister_driver(drive, tape->driver);
 
         ide_unregister_region(tape->disk);
 
@@ -4730,8 +4735,7 @@ static void ide_tape_release(struct kref *kref)
         kfree(tape);
 }
 
-#ifdef CONFIG_PROC_FS
-
+#ifdef CONFIG_IDE_PROC_FS
 static int proc_idetape_read_name
         (char *page, char **start, off_t off, int count, int *eof, void *data)
 {
@@ -4749,11 +4753,6 @@ static ide_proc_entry_t idetape_proc[] = {
         { "name",       S_IFREG|S_IRUGO,        proc_idetape_read_name, NULL },
         { NULL, 0, NULL, NULL }
 };
-
-#else
-
-#define idetape_proc    NULL
-
 #endif
 
 static int ide_tape_probe(ide_drive_t *);
@@ -4773,7 +4772,9 @@ static ide_driver_t idetape_driver = {
         .end_request            = idetape_end_request,
         .error                  = __ide_error,
         .abort                  = __ide_abort,
+#ifdef CONFIG_IDE_PROC_FS
         .proc                   = idetape_proc,
+#endif
 };
 
 /*
@@ -4864,7 +4865,7 @@ static int ide_tape_probe(ide_drive_t *drive)
 
         ide_init_disk(g, drive);
 
-        ide_register_subdriver(drive, &idetape_driver);
+        ide_proc_register_driver(drive, &idetape_driver);
 
         kref_init(&tape->kref);
 
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index ae5bf2be6f52..f2b547ff7722 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -168,12 +168,11 @@ static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR,
 
 static int idebus_parameter;    /* holds the "idebus=" parameter */
 static int system_bus_speed;    /* holds what we think is VESA/PCI bus speed */
-static int initializing;        /* set while initializing built-in drivers */
 
 DECLARE_MUTEX(ide_cfg_sem);
  __cacheline_aligned_in_smp DEFINE_SPINLOCK(ide_lock);
 
-#ifdef CONFIG_BLK_DEV_IDEPCI
+#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
 static int ide_scan_direction; /* THIS was formerly 2.2.x pci=reverse */
 #endif
 
@@ -216,9 +215,6 @@ static void init_hwif_data(ide_hwif_t *hwif, unsigned int index)
         hwif->bus_state = BUSSTATE_ON;
 
         hwif->atapi_dma = 0;            /* disable all atapi dma */ 
-        hwif->ultra_mask = 0x80;        /* disable all ultra */
-        hwif->mwdma_mask = 0x80;        /* disable all mwdma */
-        hwif->swdma_mask = 0x80;        /* disable all swdma */
 
         init_completion(&hwif->gendev_rel_comp);
 
@@ -305,9 +301,7 @@ static void __init init_ide_data (void)
 #endif
         }
 #ifdef CONFIG_IDE_ARM
-        initializing = 1;
         ide_arm_init();
-        initializing = 0;
 #endif
 }
 
@@ -353,10 +347,6 @@ static int ide_system_bus_speed(void)
         return system_bus_speed;
 }
 
-#ifdef CONFIG_PROC_FS
-struct proc_dir_entry *proc_ide_root;
-#endif
-
 static struct resource* hwif_request_region(ide_hwif_t *hwif,
                                             unsigned long addr, int num)
 {
@@ -480,6 +470,7 @@ static void ide_hwif_restore(ide_hwif_t *hwif, ide_hwif_t *tmp_hwif)
 
         hwif->tuneproc                  = tmp_hwif->tuneproc;
         hwif->speedproc                 = tmp_hwif->speedproc;
+        hwif->udma_filter               = tmp_hwif->udma_filter;
         hwif->selectproc                = tmp_hwif->selectproc;
         hwif->reset_poll                = tmp_hwif->reset_poll;
         hwif->pre_reset                 = tmp_hwif->pre_reset;
@@ -599,7 +590,7 @@ void ide_unregister(unsigned int index)
 
         spin_unlock_irq(&ide_lock);
 
-        destroy_proc_ide_interface(hwif);
+        ide_proc_unregister_port(hwif);
 
         hwgroup = hwif->hwgroup;
         /*
@@ -751,6 +742,7 @@ void ide_setup_ports (	hw_regs_t *hw,
 /**
  *      ide_register_hw_with_fixup      -       register IDE interface
  *      @hw: hardware registers
+ *      @initializing: set while initializing built-in drivers
  *      @hwifp: pointer to returned hwif
  *      @fixup: fixup function
  *
@@ -760,7 +752,9 @@ void ide_setup_ports (	hw_regs_t *hw,
  *      Returns -1 on error.
  */
 
-int ide_register_hw_with_fixup(hw_regs_t *hw, ide_hwif_t **hwifp, void(*fixup)(ide_hwif_t *hwif))
+int ide_register_hw_with_fixup(hw_regs_t *hw, int initializing,
+                               ide_hwif_t **hwifp,
+                               void(*fixup)(ide_hwif_t *hwif))
 {
         int index, retry = 1;
         ide_hwif_t *hwif;
@@ -801,7 +795,7 @@ found:
 
         if (!initializing) {
                 probe_hwif_init_with_fixup(hwif, fixup);
-                create_proc_ide_interfaces();
+                ide_proc_register_port(hwif);
         }
 
         if (hwifp)
@@ -812,9 +806,9 @@ found:
 
 EXPORT_SYMBOL(ide_register_hw_with_fixup);
 
-int ide_register_hw(hw_regs_t *hw, ide_hwif_t **hwifp)
+int ide_register_hw(hw_regs_t *hw, int initializing, ide_hwif_t **hwifp)
 {
-        return ide_register_hw_with_fixup(hw, hwifp, NULL);
+        return ide_register_hw_with_fixup(hw, initializing, hwifp, NULL);
 }
 
 EXPORT_SYMBOL(ide_register_hw);
@@ -825,205 +819,7 @@ EXPORT_SYMBOL(ide_register_hw);
 
 DECLARE_MUTEX(ide_setting_sem);
 
-/**
- *      __ide_add_setting       -       add an ide setting option
- *      @drive: drive to use
- *      @name: setting name
- *      @rw: true if the function is read write
- *      @read_ioctl: function to call on read
- *      @write_ioctl: function to call on write
- *      @data_type: type of data
- *      @min: range minimum
- *      @max: range maximum
- *      @mul_factor: multiplication scale
- *      @div_factor: divison scale
- *      @data: private data field
- *      @set: setting
- *      @auto_remove: setting auto removal flag
- *
- *      Removes the setting named from the device if it is present.
- *      The function takes the settings_lock to protect against 
- *      parallel changes. This function must not be called from IRQ
- *      context. Returns 0 on success or -1 on failure.
- *
- *      BUGS: This code is seriously over-engineered. There is also
- *      magic about how the driver specific features are setup. If
- *      a driver is attached we assume the driver settings are auto
- *      remove.
- */
-
-static int __ide_add_setting(ide_drive_t *drive, const char *name, int rw, int read_ioctl, int write_ioctl, int data_type, int min, int max, int mul_factor, int div_factor, void *data, ide_procset_t *set, int auto_remove)
-{
-        ide_settings_t **p = (ide_settings_t **) &drive->settings, *setting = NULL;
-
-        down(&ide_setting_sem);
-        while ((*p) && strcmp((*p)->name, name) < 0)
-                p = &((*p)->next);
-        if ((setting = kzalloc(sizeof(*setting), GFP_KERNEL)) == NULL)
-                goto abort;
-        if ((setting->name = kmalloc(strlen(name) + 1, GFP_KERNEL)) == NULL)
-                goto abort;
-        strcpy(setting->name, name);
-        setting->rw = rw;
-        setting->read_ioctl = read_ioctl;
-        setting->write_ioctl = write_ioctl;
-        setting->data_type = data_type;
-        setting->min = min;
-        setting->max = max;
-        setting->mul_factor = mul_factor;
-        setting->div_factor = div_factor;
-        setting->data = data;
-        setting->set = set;
-        
-        setting->next = *p;
-        if (auto_remove)
-                setting->auto_remove = 1;
-        *p = setting;
-        up(&ide_setting_sem);
-        return 0;
-abort:
-        up(&ide_setting_sem);
-        kfree(setting);
-        return -1;
-}
-
-int ide_add_setting(ide_drive_t *drive, const char *name, int rw, int read_ioctl, int write_ioctl, int data_type, int min, int max, int mul_factor, int div_factor, void *data, ide_procset_t *set)
-{
-        return __ide_add_setting(drive, name, rw, read_ioctl, write_ioctl, data_type, min, max, mul_factor, div_factor, data, set, 1);
-}
-
-EXPORT_SYMBOL(ide_add_setting);
-
-/**
- *      __ide_remove_setting    -       remove an ide setting option
- *      @drive: drive to use
- *      @name: setting name
- *
- *      Removes the setting named from the device if it is present.
- *      The caller must hold the setting semaphore.
- */
- 
-static void __ide_remove_setting (ide_drive_t *drive, char *name)
-{
-        ide_settings_t **p, *setting;
-
-        p = (ide_settings_t **) &drive->settings;
-
-        while ((*p) && strcmp((*p)->name, name))
-                p = &((*p)->next);
-        if ((setting = (*p)) == NULL)
-                return;
-
-        (*p) = setting->next;
-        
-        kfree(setting->name);
-        kfree(setting);
-}
-
-/**
- *      ide_find_setting_by_ioctl       -       find a drive specific ioctl
- *      @drive: drive to scan
- *      @cmd: ioctl command to handle
- *
- *      Scan's the device setting table for a matching entry and returns
- *      this or NULL if no entry is found. The caller must hold the
- *      setting semaphore
- */
- 
-static ide_settings_t *ide_find_setting_by_ioctl (ide_drive_t *drive, int cmd)
-{
-        ide_settings_t *setting = drive->settings;
-
-        while (setting) {
-                if (setting->read_ioctl == cmd || setting->write_ioctl == cmd)
-                        break;
-                setting = setting->next;
-        }
-        
-        return setting;
-}
-
-/**
- *      ide_find_setting_by_name        -       find a drive specific setting
- *      @drive: drive to scan
- *      @name: setting name
- *
- *      Scan's the device setting table for a matching entry and returns
- *      this or NULL if no entry is found. The caller must hold the
- *      setting semaphore
- */
- 
-ide_settings_t *ide_find_setting_by_name (ide_drive_t *drive, char *name)
-{
-        ide_settings_t *setting = drive->settings;
-
-        while (setting) {
-                if (strcmp(setting->name, name) == 0)
-                        break;
-                setting = setting->next;
-        }
-        return setting;
-}
-
-/**
- *      auto_remove_settings    -       remove driver specific settings
- *      @drive: drive
- *
- *      Automatically remove all the driver specific settings for this
- *      drive. This function may not be called from IRQ context. The
- *      caller must hold ide_setting_sem.
- */
- 
-static void auto_remove_settings (ide_drive_t *drive)
-{
-        ide_settings_t *setting;
-repeat:
-        setting = drive->settings;
-        while (setting) {
-                if (setting->auto_remove) {
-                        __ide_remove_setting(drive, setting->name);
-                        goto repeat;
-                }
-                setting = setting->next;
-        }
-}
-
-/**
- *      ide_read_setting        -       read an IDE setting
- *      @drive: drive to read from
- *      @setting: drive setting
- *
- *      Read a drive setting and return the value. The caller
- *      must hold the ide_setting_sem when making this call.
- *
- *      BUGS: the data return and error are the same return value
- *      so an error -EINVAL and true return of the same value cannot
- *      be told apart
- */
- 
-int ide_read_setting (ide_drive_t *drive, ide_settings_t *setting)
-{
-        int             val = -EINVAL;
-        unsigned long   flags;
-
-        if ((setting->rw & SETTING_READ)) {
-                spin_lock_irqsave(&ide_lock, flags);
-                switch(setting->data_type) {
-                        case TYPE_BYTE:
-                                val = *((u8 *) setting->data);
-                                break;
-                        case TYPE_SHORT:
-                                val = *((u16 *) setting->data);
-                                break;
-                        case TYPE_INT:
-                        case TYPE_INTA:
-                                val = *((u32 *) setting->data);
-                                break;
-                }
-                spin_unlock_irqrestore(&ide_lock, flags);
-        }
-        return val;
-}
+EXPORT_SYMBOL_GPL(ide_setting_sem);
 
 /**
  *      ide_spin_wait_hwgroup   -       wait for group
@@ -1058,61 +854,14 @@ int ide_spin_wait_hwgroup (ide_drive_t *drive)
 
 EXPORT_SYMBOL(ide_spin_wait_hwgroup);
 
-/**
- *      ide_write_setting       -       read an IDE setting
- *      @drive: drive to read from
- *      @setting: drive setting
- *      @val: value
- *
- *      Write a drive setting if it is possible. The caller
- *      must hold the ide_setting_sem when making this call.
- *
- *      BUGS: the data return and error are the same return value
- *      so an error -EINVAL and true return of the same value cannot
- *      be told apart
- *
- *      FIXME:  This should be changed to enqueue a special request
- *      to the driver to change settings, and then wait on a sema for completion.
- *      The current scheme of polling is kludgy, though safe enough.
- */
-
-int ide_write_setting (ide_drive_t *drive, ide_settings_t *setting, int val)
+int set_io_32bit(ide_drive_t *drive, int arg)
 {
-        int i;
-        u32 *p;
-
-        if (!capable(CAP_SYS_ADMIN))
-                return -EACCES;
-        if (!(setting->rw & SETTING_WRITE))
+        if (drive->no_io_32bit)
                 return -EPERM;
-        if (val < setting->min || val > setting->max)
+
+        if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1))
                 return -EINVAL;
-        if (setting->set)
-                return setting->set(drive, val);
-        if (ide_spin_wait_hwgroup(drive))
-                return -EBUSY;
-        switch (setting->data_type) {
-                case TYPE_BYTE:
-                        *((u8 *) setting->data) = val;
-                        break;
-                case TYPE_SHORT:
-                        *((u16 *) setting->data) = val;
-                        break;
-                case TYPE_INT:
-                        *((u32 *) setting->data) = val;
-                        break;
-                case TYPE_INTA:
-                        p = (u32 *) setting->data;
-                        for (i = 0; i < 1 << PARTN_BITS; i++, p++)
-                                *p = val;
-                        break;
-        }
-        spin_unlock_irq(&ide_lock);
-        return 0;
-}
 
-static int set_io_32bit(ide_drive_t *drive, int arg)
-{
         drive->io_32bit = arg;
 #ifdef CONFIG_BLK_DEV_DTC2278
         if (HWIF(drive)->chipset == ide_dtc2278)
@@ -1121,12 +870,28 @@ static int set_io_32bit(ide_drive_t *drive, int arg)
         return 0;
 }
 
-static int set_using_dma (ide_drive_t *drive, int arg)
+static int set_ksettings(ide_drive_t *drive, int arg)
+{
+        if (arg < 0 || arg > 1)
+                return -EINVAL;
+
+        if (ide_spin_wait_hwgroup(drive))
+                return -EBUSY;
+        drive->keep_settings = arg;
+        spin_unlock_irq(&ide_lock);
+
+        return 0;
+}
+
+int set_using_dma(ide_drive_t *drive, int arg)
 {
 #ifdef CONFIG_BLK_DEV_IDEDMA
         ide_hwif_t *hwif = drive->hwif;
         int err = -EPERM;
 
+        if (arg < 0 || arg > 1)
+                return -EINVAL;
+
         if (!drive->id || !(drive->id->capability & 1))
                 goto out;
 
@@ -1159,14 +924,20 @@ static int set_using_dma (ide_drive_t *drive, int arg)
 out:
         return err;
 #else
+        if (arg < 0 || arg > 1)
+                return -EINVAL;
+
         return -EPERM;
 #endif
 }
 
-static int set_pio_mode (ide_drive_t *drive, int arg)
+int set_pio_mode(ide_drive_t *drive, int arg)
 {
         struct request rq;
 
+        if (arg < 0 || arg > 255)
+                return -EINVAL;
+
         if (!HWIF(drive)->tuneproc)
                 return -ENOSYS;
         if (drive->special.b.set_tune)
@@ -1178,42 +949,20 @@ static int set_pio_mode (ide_drive_t *drive, int arg)
         return 0;
 }
 
-static int set_xfer_rate (ide_drive_t *drive, int arg)
+static int set_unmaskirq(ide_drive_t *drive, int arg)
 {
-        int err = ide_wait_cmd(drive,
-                        WIN_SETFEATURES, (u8) arg,
-                        SETFEATURES_XFER, 0, NULL);
+        if (drive->no_unmask)
+                return -EPERM;
 
-        if (!err && arg) {
-                ide_set_xfer_rate(drive, (u8) arg);
-                ide_driveid_update(drive);
-        }
-        return err;
-}
+        if (arg < 0 || arg > 1)
+                return -EINVAL;
 
-/**
- *      ide_add_generic_settings        -       generic ide settings
- *      @drive: drive being configured
- *
- *      Add the generic parts of the system settings to the /proc files and
- *      ioctls for this IDE device. The caller must not be holding the
- *      ide_setting_sem.
- */
+        if (ide_spin_wait_hwgroup(drive))
+                return -EBUSY;
+        drive->unmask = arg;
+        spin_unlock_irq(&ide_lock);
 
-void ide_add_generic_settings (ide_drive_t *drive)
-{
-/*
- *                        drive         setting name            read/write access                               read ioctl              write ioctl             data type       min     max                             mul_factor      div_factor      data pointer                    set function
- */
-        __ide_add_setting(drive,        "io_32bit",             drive->no_io_32bit ? SETTING_READ : SETTING_RW, HDIO_GET_32BIT,         HDIO_SET_32BIT,         TYPE_BYTE,      0,      1 + (SUPPORT_VLB_SYNC << 1),    1,              1,              &drive->io_32bit,               set_io_32bit,   0);
-        __ide_add_setting(drive,        "keepsettings",         SETTING_RW,                                     HDIO_GET_KEEPSETTINGS,  HDIO_SET_KEEPSETTINGS,  TYPE_BYTE,      0,      1,                              1,              1,              &drive->keep_settings,          NULL,           0);
-        __ide_add_setting(drive,        "nice1",                SETTING_RW,                                     -1,                     -1,                     TYPE_BYTE,      0,      1,                              1,              1,              &drive->nice1,                  NULL,           0);
-        __ide_add_setting(drive,        "pio_mode",             SETTING_WRITE,                                  -1,                     HDIO_SET_PIO_MODE,      TYPE_BYTE,      0,      255,                            1,              1,              NULL,                           set_pio_mode,   0);
-        __ide_add_setting(drive,        "unmaskirq",            drive->no_unmask ? SETTING_READ : SETTING_RW,   HDIO_GET_UNMASKINTR,    HDIO_SET_UNMASKINTR,    TYPE_BYTE,      0,      1,                              1,              1,              &drive->unmask,                 NULL,           0);
-        __ide_add_setting(drive,        "using_dma",            SETTING_RW,                                     HDIO_GET_DMA,           HDIO_SET_DMA,           TYPE_BYTE,      0,      1,                              1,              1,              &drive->using_dma,              set_using_dma,  0);
-        __ide_add_setting(drive,        "init_speed",           SETTING_RW,                                     -1,                     -1,                     TYPE_BYTE,      0,      70,                             1,              1,              &drive->init_speed,             NULL,           0);
-        __ide_add_setting(drive,        "current_speed",        SETTING_RW,                                     -1,                     -1,                     TYPE_BYTE,      0,      70,                             1,              1,              &drive->current_speed,          set_xfer_rate,  0);
-        __ide_add_setting(drive,        "number",               SETTING_RW,                                     -1,                     -1,                     TYPE_BYTE,      0,      3,                              1,              1,              &drive->dn,                     NULL,           0);
+        return 0;
 }
 
 /**
@@ -1285,27 +1034,23 @@ static int generic_ide_resume(struct device *dev)
 int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev,
                         unsigned int cmd, unsigned long arg)
 {
-        ide_settings_t *setting;
+        unsigned long flags;
         ide_driver_t *drv;
-        int err = 0;
         void __user *p = (void __user *)arg;
+        int err = 0, (*setfunc)(ide_drive_t *, int);
+        u8 *val;
 
-        down(&ide_setting_sem);
-        if ((setting = ide_find_setting_by_ioctl(drive, cmd)) != NULL) {
-                if (cmd == setting->read_ioctl) {
-                        err = ide_read_setting(drive, setting);
-                        up(&ide_setting_sem);
-                        return err >= 0 ? put_user(err, (long __user *)arg) : err;
-                } else {
-                        if (bdev != bdev->bd_contains)
-                                err = -EINVAL;
-                        else
-                                err = ide_write_setting(drive, setting, arg);
-                        up(&ide_setting_sem);
-                        return err;
-                }
+        switch (cmd) {
+        case HDIO_GET_32BIT:        val = &drive->io_32bit;      goto read_val;
+        case HDIO_GET_KEEPSETTINGS: val = &drive->keep_settings; goto read_val;
+        case HDIO_GET_UNMASKINTR:   val = &drive->unmask;        goto read_val;
+        case HDIO_GET_DMA:          val = &drive->using_dma;     goto read_val;
+        case HDIO_SET_32BIT:        setfunc = set_io_32bit;      goto set_val;
+        case HDIO_SET_KEEPSETTINGS: setfunc = set_ksettings;     goto set_val;
+        case HDIO_SET_PIO_MODE:     setfunc = set_pio_mode;      goto set_val;
+        case HDIO_SET_UNMASKINTR:   setfunc = set_unmaskirq;     goto set_val;
+        case HDIO_SET_DMA:          setfunc = set_using_dma;     goto set_val;
         }
-        up(&ide_setting_sem);
 
         switch (cmd) {
                 case HDIO_OBSOLETE_IDENTITY:
@@ -1359,7 +1104,7 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
                         ide_init_hwif_ports(&hw, (unsigned long) args[0],
                                             (unsigned long) args[1], NULL);
                         hw.irq = args[2];
-                        if (ide_register_hw(&hw, NULL) == -1)
+                        if (ide_register_hw(&hw, 0, NULL) == -1)
                                 return -EIO;
                         return 0;
                 }
@@ -1434,6 +1179,28 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
                 default:
                         return -EINVAL;
         }
+
+read_val:
+        down(&ide_setting_sem);
+        spin_lock_irqsave(&ide_lock, flags);
+        err = *val;
+        spin_unlock_irqrestore(&ide_lock, flags);
+        up(&ide_setting_sem);
+        return err >= 0 ? put_user(err, (long __user *)arg) : err;
+
+set_val:
+        if (bdev != bdev->bd_contains)
+                err = -EINVAL;
+        else {
+                if (!capable(CAP_SYS_ADMIN))
+                        err = -EACCES;
+                else {
+                        down(&ide_setting_sem);
+                        err = setfunc(drive, arg);
+                        up(&ide_setting_sem);
+                }
+        }
+        return err;
 }
 
 EXPORT_SYMBOL(generic_ide_ioctl);
@@ -1566,13 +1333,13 @@ static int __init ide_setup(char *s)
                 return 1;
         }
 
-#ifdef CONFIG_BLK_DEV_IDEPCI
+#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
         if (!strcmp(s, "ide=reverse")) {
                 ide_scan_direction = 1;
                 printk(" : Enabled support for IDE inverse scan order.\n");
                 return 1;
         }
-#endif /* CONFIG_BLK_DEV_IDEPCI */
+#endif
 
 #ifdef CONFIG_BLK_DEV_IDEACPI
         if (!strcmp(s, "ide=noacpi")) {
@@ -1832,9 +1599,9 @@ extern void __init h8300_ide_init(void);
  */
 static void __init probe_for_hwifs (void)
 {
-#ifdef CONFIG_BLK_DEV_IDEPCI
+#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
         ide_scan_pcibus(ide_scan_direction);
-#endif /* CONFIG_BLK_DEV_IDEPCI */
+#endif
 
 #ifdef CONFIG_ETRAX_IDE
         {
@@ -1892,54 +1659,6 @@ static void __init probe_for_hwifs (void)
 #endif
 }
 
-void ide_register_subdriver(ide_drive_t *drive, ide_driver_t *driver)
-{
-#ifdef CONFIG_PROC_FS
-        ide_add_proc_entries(drive->proc, driver->proc, drive);
-#endif
-}
-
-EXPORT_SYMBOL(ide_register_subdriver);
-
-/**
- *      ide_unregister_subdriver        -       disconnect drive from driver
- *      @drive: drive to unplug
- *      @driver: driver
- *
- *      Disconnect a drive from the driver it was attached to and then
- *      clean up the various proc files and other objects attached to it.
- *
- *      Takes ide_setting_sem and ide_lock.
- *      Caller must hold none of the locks.
- */
-
-void ide_unregister_subdriver(ide_drive_t *drive, ide_driver_t *driver)
-{
-        unsigned long flags;
-        
-#ifdef CONFIG_PROC_FS
-        ide_remove_proc_entries(drive->proc, driver->proc);
-#endif
-        down(&ide_setting_sem);
-        spin_lock_irqsave(&ide_lock, flags);
-        /*
-         * ide_setting_sem protects the settings list
-         * ide_lock protects the use of settings
-         *
-         * so we need to hold both, ide_settings_sem because we want to
-         * modify the settings list, and ide_lock because we cannot take
-         * a setting out that is being used.
-         *
-         * OTOH both ide_{read,write}_setting are only ever used under
-         * ide_setting_sem.
-         */
-        auto_remove_settings(drive);
-        spin_unlock_irqrestore(&ide_lock, flags);
-        up(&ide_setting_sem);
-}
-
-EXPORT_SYMBOL(ide_unregister_subdriver);
-
 /*
  * Probe module
  */
@@ -2071,9 +1790,7 @@ static int __init ide_init(void)
 
         init_ide_data();
 
-#ifdef CONFIG_PROC_FS
-        proc_ide_root = proc_mkdir("ide", NULL);
-#endif
+        proc_ide_create();
 
 #ifdef CONFIG_BLK_DEV_ALI14XX
         if (probe_ali14xx)
@@ -2096,14 +1813,9 @@ static int __init ide_init(void)
                 (void)qd65xx_init();
 #endif
 
-        initializing = 1;
         /* Probe for special PCI and other "known" interface chipsets. */
         probe_for_hwifs();
-        initializing = 0;
 
-#ifdef CONFIG_PROC_FS
-        proc_ide_create();
-#endif
         return 0;
 }
 
@@ -2143,9 +1855,7 @@ void __exit cleanup_module (void)
         pnpide_exit();
 #endif
 
-#ifdef CONFIG_PROC_FS
         proc_ide_destroy();
-#endif
 
         bus_unregister(&ide_bus_type);
 }
diff --git a/drivers/ide/legacy/ali14xx.c b/drivers/ide/legacy/ali14xx.c
index 91961aa03047..df17ed68c0bc 100644
--- a/drivers/ide/legacy/ali14xx.c
+++ b/drivers/ide/legacy/ali14xx.c
@@ -223,7 +223,8 @@ static int __init ali14xx_probe(void)
         probe_hwif_init(hwif);
         probe_hwif_init(mate);
 
-        create_proc_ide_interfaces();
+        ide_proc_register_port(hwif);
+        ide_proc_register_port(mate);
 
         return 0;
 }
diff --git a/drivers/ide/legacy/buddha.c b/drivers/ide/legacy/buddha.c
index 1ed224a01f79..101aee1711c4 100644
--- a/drivers/ide/legacy/buddha.c
+++ b/drivers/ide/legacy/buddha.c
@@ -213,7 +213,7 @@ fail_base2:
                                                 IRQ_AMIGA_PORTS);
                         }       
                         
-                        index = ide_register_hw(&hw, &hwif);
+                        index = ide_register_hw(&hw, 1, &hwif);
                         if (index != -1) {
                                 hwif->mmio = 1;
                                 printk("ide%d: ", index);
diff --git a/drivers/ide/legacy/dtc2278.c b/drivers/ide/legacy/dtc2278.c
index 0219ffa64db6..36a3f0ac6162 100644
--- a/drivers/ide/legacy/dtc2278.c
+++ b/drivers/ide/legacy/dtc2278.c
@@ -138,7 +138,8 @@ static int __init dtc2278_probe(void)
         probe_hwif_init(hwif);
         probe_hwif_init(mate);
 
-        create_proc_ide_interfaces();
+        ide_proc_register_port(hwif);
+        ide_proc_register_port(mate);
 
         return 0;
 }
diff --git a/drivers/ide/legacy/falconide.c b/drivers/ide/legacy/falconide.c
index a9f2cd5bb81e..e1e9d9d6893f 100644
--- a/drivers/ide/legacy/falconide.c
+++ b/drivers/ide/legacy/falconide.c
@@ -70,7 +70,7 @@ void __init falconide_init(void)
                         0, 0, NULL,
 //                      falconide_iops,
                         IRQ_MFP_IDE);
-        index = ide_register_hw(&hw, NULL);
+        index = ide_register_hw(&hw, 1, NULL);
 
         if (index != -1)
             printk("ide%d: Falcon IDE interface\n", index);
diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c
index dcfadbbf55d8..0830a021bbb6 100644
--- a/drivers/ide/legacy/gayle.c
+++ b/drivers/ide/legacy/gayle.c
@@ -165,7 +165,7 @@ found:
 //                      &gayle_iops,
                         IRQ_AMIGA_PORTS);
 
-        index = ide_register_hw(&hw, &hwif);
+        index = ide_register_hw(&hw, 1, &hwif);
         if (index != -1) {
             hwif->mmio = 1;
             switch (i) {
diff --git a/drivers/ide/legacy/ht6560b.c b/drivers/ide/legacy/ht6560b.c
index a2832643c522..c8f353b1296f 100644
--- a/drivers/ide/legacy/ht6560b.c
+++ b/drivers/ide/legacy/ht6560b.c
@@ -357,7 +357,8 @@ int __init ht6560b_init(void)
         probe_hwif_init(hwif);
         probe_hwif_init(mate);
 
-        create_proc_ide_interfaces();
+        ide_proc_register_port(hwif);
+        ide_proc_register_port(mate);
 
         return 0;
 
diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c
index c6522a64d7ec..2f3977f195b7 100644
--- a/drivers/ide/legacy/ide-cs.c
+++ b/drivers/ide/legacy/ide-cs.c
@@ -153,7 +153,7 @@ static int idecs_register(unsigned long io, unsigned long ctl, unsigned long irq
     hw.irq = irq;
     hw.chipset = ide_pci;
     hw.dev = &handle->dev;
-    return ide_register_hw_with_fixup(&hw, NULL, ide_undecoded_slave);
+    return ide_register_hw_with_fixup(&hw, 0, NULL, ide_undecoded_slave);
 }
 
 /*======================================================================
diff --git a/drivers/ide/legacy/macide.c b/drivers/ide/legacy/macide.c
index 4c0079ad52ac..c211fc78345d 100644
--- a/drivers/ide/legacy/macide.c
+++ b/drivers/ide/legacy/macide.c
@@ -102,21 +102,21 @@ void macide_init(void)
                                 0, 0, macide_ack_intr,
 //                              quadra_ide_iops,
                                 IRQ_NUBUS_F);
-                index = ide_register_hw(&hw, &hwif);
+                index = ide_register_hw(&hw, 1, &hwif);
                 break;
         case MAC_IDE_PB:
                 ide_setup_ports(&hw, IDE_BASE, macide_offsets,
                                 0, 0, macide_ack_intr,
 //                              macide_pb_iops,
                                 IRQ_NUBUS_C);
-                index = ide_register_hw(&hw, &hwif);
+                index = ide_register_hw(&hw, 1, &hwif);
                 break;
         case MAC_IDE_BABOON:
                 ide_setup_ports(&hw, BABOON_BASE, macide_offsets,
                                 0, 0, NULL,
 //                              macide_baboon_iops,
                                 IRQ_BABOON_1);
-                index = ide_register_hw(&hw, &hwif);
+                index = ide_register_hw(&hw, 1, &hwif);
                 if (index == -1) break;
                 if (macintosh_config->ident == MAC_MODEL_PB190) {
 
diff --git a/drivers/ide/legacy/q40ide.c b/drivers/ide/legacy/q40ide.c
index 74f08124eabb..e628a983ce33 100644
--- a/drivers/ide/legacy/q40ide.c
+++ b/drivers/ide/legacy/q40ide.c
@@ -142,7 +142,7 @@ void q40ide_init(void)
                         0, NULL,
 //                      m68kide_iops,
                         q40ide_default_irq(pcide_bases[i]));
-        index = ide_register_hw(&hw, &hwif);
+        index = ide_register_hw(&hw, 1, &hwif);
         // **FIXME**
         if (index != -1)
                 hwif->mmio = 1;
diff --git a/drivers/ide/legacy/qd65xx.c b/drivers/ide/legacy/qd65xx.c
index 2fb8f50f1293..d1414a75b523 100644
--- a/drivers/ide/legacy/qd65xx.c
+++ b/drivers/ide/legacy/qd65xx.c
@@ -427,7 +427,7 @@ static int __init qd_probe(int base)
                 qd_setup(hwif, base, config, QD6500_DEF_DATA, QD6500_DEF_DATA,
                          &qd6500_tune_drive);
 
-                create_proc_ide_interfaces();
+                ide_proc_register_port(hwif);
 
                 return 1;
         }
@@ -459,7 +459,7 @@ static int __init qd_probe(int base)
                                  &qd6580_tune_drive);
                         qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
 
-                        create_proc_ide_interfaces();
+                        ide_proc_register_port(hwif);
 
                         return 1;
                 } else {
@@ -479,7 +479,8 @@ static int __init qd_probe(int base)
                                  &qd6580_tune_drive);
                         qd_write_reg(QD_DEF_CONTR,QD_CONTROL_PORT);
 
-                        create_proc_ide_interfaces();
+                        ide_proc_register_port(hwif);
+                        ide_proc_register_port(mate);
 
                         return 0; /* no other qd65xx possible */
                 }
diff --git a/drivers/ide/legacy/umc8672.c b/drivers/ide/legacy/umc8672.c
index ca7974455578..ddc403a0bd82 100644
--- a/drivers/ide/legacy/umc8672.c
+++ b/drivers/ide/legacy/umc8672.c
@@ -160,7 +160,8 @@ static int __init umc8672_probe(void)
         probe_hwif_init(hwif);
         probe_hwif_init(mate);
 
-        create_proc_ide_interfaces();
+        ide_proc_register_port(hwif);
+        ide_proc_register_port(mate);
 
         return 0;
 }
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index d54d9fe92a7d..ca95e990862e 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -760,6 +760,9 @@ static int au_ide_probe(struct device *dev)
 #endif
 
         probe_hwif_init(hwif);
+
+        ide_proc_register_port(hwif);
+
         dev_set_drvdata(dev, hwif);
 
         printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode );
diff --git a/drivers/ide/mips/swarm.c b/drivers/ide/mips/swarm.c
index 81fa06851b27..6e935d7c63fd 100644
--- a/drivers/ide/mips/swarm.c
+++ b/drivers/ide/mips/swarm.c
@@ -129,6 +129,9 @@ static int __devinit swarm_ide_probe(struct device *dev)
         hwif->irq = hwif->hw.irq;
 
         probe_hwif_init(hwif);
+
+        ide_proc_register_port(hwif);
+
         dev_set_drvdata(dev, hwif);
 
         return 0;
diff --git a/drivers/ide/pci/aec62xx.c b/drivers/ide/pci/aec62xx.c
index 73bdf64dbbfc..b173bc66ce1e 100644
--- a/drivers/ide/pci/aec62xx.c
+++ b/drivers/ide/pci/aec62xx.c
@@ -87,38 +87,12 @@ static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entr
         return chipset_table->ultra_settings;
 }
 
-static u8 aec62xx_ratemask (ide_drive_t *drive)
-{
-        ide_hwif_t *hwif        = HWIF(drive);
-        u8 mode;
-
-        switch(hwif->pci_dev->device) {
-                case PCI_DEVICE_ID_ARTOP_ATP865:
-                case PCI_DEVICE_ID_ARTOP_ATP865R:
-                        mode = (inb(hwif->channel ?
-                                    hwif->mate->dma_status :
-                                    hwif->dma_status) & 0x10) ? 4 : 3;
-                        break;
-                case PCI_DEVICE_ID_ARTOP_ATP860:
-                case PCI_DEVICE_ID_ARTOP_ATP860R:
-                        mode = 2;
-                        break;
-                case PCI_DEVICE_ID_ARTOP_ATP850UF:
-                default:
-                        return 1;
-        }
-
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
-}
-
 static int aec6210_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 {
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev *dev     = hwif->pci_dev;
         u16 d_conf              = 0;
-        u8 speed        = ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
+        u8 speed                = ide_rate_filter(drive, xferspeed);
         u8 ultra = 0, ultra_conf = 0;
         u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
         unsigned long flags;
@@ -145,7 +119,7 @@ static int aec6260_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 {
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev *dev     = hwif->pci_dev;
-        u8 speed        = ide_rate_filter(aec62xx_ratemask(drive), xferspeed);
+        u8 speed        = ide_rate_filter(drive, xferspeed);
         u8 unit         = (drive->select.b.unit & 0x01);
         u8 tmp1 = 0, tmp2 = 0;
         u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
@@ -181,17 +155,6 @@ static int aec62xx_tune_chipset (ide_drive_t *drive, u8 speed)
         }
 }
 
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
-        u8 speed = ide_dma_speed(drive, aec62xx_ratemask(drive));       
-
-        if (!(speed))
-                return 0;
-
-        (void) aec62xx_tune_chipset(drive, speed);
-        return ide_dma_enable(drive);
-}
-
 static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio)
 {
         pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
@@ -200,7 +163,7 @@ static void aec62xx_tune_drive (ide_drive_t *drive, u8 pio)
 
 static int aec62xx_config_drive_xfer_rate (ide_drive_t *drive)
 {
-        if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         if (ide_use_fast_pio(drive))
@@ -261,11 +224,13 @@ static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const ch
 
 static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
 {
+        struct pci_dev *dev = hwif->pci_dev;
+
         hwif->autodma = 0;
         hwif->tuneproc = &aec62xx_tune_drive;
         hwif->speedproc = &aec62xx_tune_chipset;
 
-        if (hwif->pci_dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
+        if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
                 hwif->serialized = hwif->channel;
 
         if (hwif->mate)
@@ -277,7 +242,15 @@ static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
                 return;
         }
 
-        hwif->ultra_mask = 0x7f;
+        hwif->ultra_mask = hwif->cds->udma_mask;
+
+        /* atp865 and atp865r */
+        if (hwif->ultra_mask == 0x3f) {
+                /* check bit 0x10 of DMA status register */
+                if (inb(pci_resource_start(dev, 4) + 2) & 0x10)
+                        hwif->ultra_mask = 0x7f; /* udma0-6 */
+        }
+
         hwif->mwdma_mask = 0x07;
 
         hwif->ide_dma_check     = &aec62xx_config_drive_xfer_rate;
@@ -344,6 +317,7 @@ static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .enablebits     = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x07, /* udma0-2 */
         },{     /* 1 */
                 .name           = "AEC6260",
                 .init_setup     = init_setup_aec62xx,
@@ -353,6 +327,7 @@ static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
                 .channels       = 2,
                 .autodma        = NOAUTODMA,
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x1f, /* udma0-4 */
         },{     /* 2 */
                 .name           = "AEC6260R",
                 .init_setup     = init_setup_aec62xx,
@@ -363,6 +338,7 @@ static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .enablebits     = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
                 .bootable       = NEVER_BOARD,
+                .udma_mask      = 0x1f, /* udma0-4 */
         },{     /* 3 */
                 .name           = "AEC6X80",
                 .init_setup     = init_setup_aec6x80,
@@ -372,6 +348,7 @@ static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
                 .channels       = 2,
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x3f, /* udma0-5 */
         },{     /* 4 */
                 .name           = "AEC6X80R",
                 .init_setup     = init_setup_aec6x80,
@@ -382,6 +359,7 @@ static ide_pci_device_t aec62xx_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .enablebits     = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x3f, /* udma0-5 */
         }
 };
 
diff --git a/drivers/ide/pci/alim15x3.c b/drivers/ide/pci/alim15x3.c
index 946a12746cb5..428efdae0c7b 100644
--- a/drivers/ide/pci/alim15x3.c
+++ b/drivers/ide/pci/alim15x3.c
@@ -50,7 +50,7 @@ static u8 m5229_revision;
 static u8 chip_is_1543c_e;
 static struct pci_dev *isa_dev;
 
-#if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS)
+#if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
 #include <linux/stat.h>
 #include <linux/proc_fs.h>
 
@@ -278,7 +278,7 @@ static int ali_get_info (char *buffer, char **addr, off_t offset, int count)
 
         return p-buffer; /* => must be less than 4k! */
 }
-#endif  /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS) */
+#endif  /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */
 
 /**
  *      ali15x3_tune_pio        -       set up chipset for PIO mode
@@ -378,74 +378,31 @@ static void ali15x3_tune_drive (ide_drive_t *drive, u8 pio)
 }
 
 /**
- *      ali15x3_can_ultra       -       check for ultra DMA support
- *      @drive: drive to do the check
+ *      ali_udma_filter         -       compute UDMA mask
+ *      @drive: IDE device
  *
- *      Check the drive and controller revisions. Return 0 if UDMA is
- *      not available, or 1 if UDMA can be used. The actual rules for
- *      the ALi are
+ *      Return available UDMA modes.
+ *
+ *      The actual rules for the ALi are:
  *              No UDMA on revisions <= 0x20
  *              Disk only for revisions < 0xC2
  *              Not WDC drives for revisions < 0xC2
  *
  *      FIXME: WDC ifdef needs to die
  */
- 
-static u8 ali15x3_can_ultra (ide_drive_t *drive)
-{
-#ifndef CONFIG_WDC_ALI15X3
-        struct hd_driveid *id   = drive->id;
-#endif /* CONFIG_WDC_ALI15X3 */
 
-        if (m5229_revision <= 0x20) {
-                return 0;
-        } else if ((m5229_revision < 0xC2) &&
-#ifndef CONFIG_WDC_ALI15X3
-                   ((chip_is_1543c_e && strstr(id->model, "WDC ")) ||
-                    (drive->media!=ide_disk))) {
-#else /* CONFIG_WDC_ALI15X3 */
-                   (drive->media!=ide_disk)) {
-#endif /* CONFIG_WDC_ALI15X3 */
-                return 0;
-        } else {
-                return 1;
-        }
-}
-
-/**
- *      ali15x3_ratemask        -       generate DMA mode list
- *      @drive: drive to compute against
- *
- *      Generate a list of the available DMA modes for the drive. 
- *      FIXME: this function contains lots of bogus masking we can dump
- *
- *      Return the highest available mode (UDMA33, UDMA66, UDMA100,..)
- */
- 
-static u8 ali15x3_ratemask (ide_drive_t *drive)
+static u8 ali_udma_filter(ide_drive_t *drive)
 {
-        u8 mode = 0, can_ultra  = ali15x3_can_ultra(drive);
-
-        if (m5229_revision > 0xC4 && can_ultra) {
-                mode = 4;
-        } else if (m5229_revision == 0xC4 && can_ultra) {
-                mode = 3;
-        } else if (m5229_revision >= 0xC2 && can_ultra) {
-                mode = 2;
-        } else if (can_ultra) {
-                return 1;
-        } else {
-                return 0;
+        if (m5229_revision > 0x20 && m5229_revision < 0xC2) {
+                if (drive->media != ide_disk)
+                        return 0;
+#ifndef CONFIG_WDC_ALI15X3
+                if (chip_is_1543c_e && strstr(drive->id->model, "WDC "))
+                        return 0;
+#endif
         }
 
-        /*
-         *      If the drive sees no suitable cable then UDMA 33
-         *      is the highest permitted mode
-         */
-         
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
+        return drive->hwif->ultra_mask;
 }
 
 /**
@@ -461,7 +418,7 @@ static int ali15x3_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 {
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev *dev     = hwif->pci_dev;
-        u8 speed                = ide_rate_filter(ali15x3_ratemask(drive), xferspeed);
+        u8 speed                = ide_rate_filter(drive, xferspeed);
         u8 speed1               = speed;
         u8 unit                 = (drive->select.b.unit & 0x01);
         u8 tmpbyte              = 0x00;
@@ -511,7 +468,7 @@ static int ali15x3_tune_chipset (ide_drive_t *drive, u8 xferspeed)
  
 static int config_chipset_for_dma (ide_drive_t *drive)
 {
-        u8 speed = ide_dma_speed(drive, ali15x3_ratemask(drive));
+        u8 speed = ide_max_dma_mode(drive);
 
         if (!(speed))
                 return 0;
@@ -609,13 +566,13 @@ static unsigned int __devinit init_chipset_ali15x3 (struct pci_dev *dev, const c
 
         isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
 
-#if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS)
+#if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
         if (!ali_proc) {
                 ali_proc = 1;
                 bmide_dev = dev;
                 ide_pci_create_host_proc("ali", ali_get_info);
         }
-#endif  /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS) */
+#endif  /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */
 
         local_irq_save(flags);
 
@@ -771,6 +728,7 @@ static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif)
         hwif->autodma = 0;
         hwif->tuneproc = &ali15x3_tune_drive;
         hwif->speedproc = &ali15x3_tune_chipset;
+        hwif->udma_filter = &ali_udma_filter;
 
         /* don't use LBA48 DMA on ALi devices before rev 0xC5 */
         hwif->no_lba48_dma = (m5229_revision <= 0xC4) ? 1 : 0;
@@ -783,8 +741,17 @@ static void __devinit init_hwif_common_ali15x3 (ide_hwif_t *hwif)
 
         hwif->atapi_dma = 1;
 
-        if (m5229_revision > 0x20)
-                hwif->ultra_mask = 0x7f;
+        if (m5229_revision <= 0x20)
+                hwif->ultra_mask = 0x00; /* no udma */
+        else if (m5229_revision < 0xC2)
+                hwif->ultra_mask = 0x07; /* udma0-2 */
+        else if (m5229_revision == 0xC2 || m5229_revision == 0xC3)
+                hwif->ultra_mask = 0x1f; /* udma0-4 */
+        else if (m5229_revision == 0xC4)
+                hwif->ultra_mask = 0x3f; /* udma0-5 */
+        else
+                hwif->ultra_mask = 0x7f; /* udma0-6 */
+
         hwif->mwdma_mask = 0x07;
         hwif->swdma_mask = 0x07;
 
diff --git a/drivers/ide/pci/amd74xx.c b/drivers/ide/pci/amd74xx.c
index 7989bdd842a2..becb1a5648b0 100644
--- a/drivers/ide/pci/amd74xx.c
+++ b/drivers/ide/pci/amd74xx.c
@@ -92,7 +92,7 @@ static unsigned char amd_cyc2udma[] = { 6, 6, 5, 4, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3
  * AMD /proc entry.
  */
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_IDE_PROC_FS
 
 #include <linux/stat.h>
 #include <linux/proc_fs.h>
@@ -402,14 +402,14 @@ static unsigned int __devinit init_chipset_amd74xx(struct pci_dev *dev, const ch
  * Register /proc/ide/amd74xx entry
  */
 
-#if defined(DISPLAY_AMD_TIMINGS) && defined(CONFIG_PROC_FS)
+#if defined(DISPLAY_AMD_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
         if (!amd74xx_proc) {
                 amd_base = pci_resource_start(dev, 4);
                 bmide_dev = dev;
                 ide_pci_create_host_proc("amd74xx", amd74xx_get_info);
                 amd74xx_proc = 1;
         }
-#endif /* DISPLAY_AMD_TIMINGS && CONFIG_PROC_FS */
+#endif /* DISPLAY_AMD_TIMINGS && CONFIG_IDE_PROC_FS */
 
         return dev->irq;
 }
diff --git a/drivers/ide/pci/atiixp.c b/drivers/ide/pci/atiixp.c
index 2d48af32e3f4..0e52ad722a72 100644
--- a/drivers/ide/pci/atiixp.c
+++ b/drivers/ide/pci/atiixp.c
@@ -49,22 +49,6 @@ static int save_mdma_mode[4];
 static DEFINE_SPINLOCK(atiixp_lock);
 
 /**
- *      atiixp_ratemask         -       compute rate mask for ATIIXP IDE
- *      @drive: IDE drive to compute for
- *
- *      Returns the available modes for the ATIIXP IDE controller.
- */
-
-static u8 atiixp_ratemask(ide_drive_t *drive)
-{
-        u8 mode = 3;
-
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
-}
-
-/**
  *      atiixp_dma_2_pio                -       return the PIO mode matching DMA
  *      @xfer_rate: transfer speed
  *
@@ -189,7 +173,7 @@ static int atiixp_speedproc(ide_drive_t *drive, u8 xferspeed)
         u16 tmp16;
         u8 speed, pio;
 
-        speed = ide_rate_filter(atiixp_ratemask(drive), xferspeed);
+        speed = ide_rate_filter(drive, xferspeed);
 
         spin_lock_irqsave(&atiixp_lock, flags);
 
@@ -223,26 +207,6 @@ static int atiixp_speedproc(ide_drive_t *drive, u8 xferspeed)
 }
 
 /**
- *      atiixp_config_drive_for_dma     -       configure drive for DMA
- *      @drive: IDE drive to configure
- *
- *      Set up a ATIIXP interface channel for the best available speed.
- *      We prefer UDMA if it is available and then MWDMA. If DMA is
- *      not available we switch to PIO and return 0.
- */
-
-static int atiixp_config_drive_for_dma(ide_drive_t *drive)
-{
-        u8 speed = ide_dma_speed(drive, atiixp_ratemask(drive));
-
-        if (!speed)
-                return 0;
-
-        (void) atiixp_speedproc(drive, speed);
-        return ide_dma_enable(drive);
-}
-
-/**
  *      atiixp_dma_check        -       set up an IDE device
  *      @drive: IDE drive to configure
  *
@@ -256,7 +220,7 @@ static int atiixp_dma_check(ide_drive_t *drive)
 
         drive->init_speed = 0;
 
-        if (ide_use_dma(drive) && atiixp_config_drive_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         if (ide_use_fast_pio(drive)) {
diff --git a/drivers/ide/pci/cmd64x.c b/drivers/ide/pci/cmd64x.c
index 77f51ab6d439..61ea96b5555c 100644
--- a/drivers/ide/pci/cmd64x.c
+++ b/drivers/ide/pci/cmd64x.c
@@ -74,7 +74,7 @@
 #define UDIDETCR1       0x7B
 #define DTPR1           0x7C
 
-#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS)
+#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
 #include <linux/stat.h>
 #include <linux/proc_fs.h>
 
@@ -165,7 +165,7 @@ static int cmd64x_get_info (char *buffer, char **addr, off_t offset, int count)
         return p-buffer;        /* => must be less than 4k! */
 }
 
-#endif  /* defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS) */
+#endif  /* defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */
 
 static u8 quantize_timing(int timing, int quant)
 {
@@ -292,55 +292,6 @@ static void cmd64x_tune_drive (ide_drive_t *drive, u8 pio)
         (void) ide_config_drive_speed(drive, XFER_PIO_0 + pio);
 }
 
-static u8 cmd64x_ratemask (ide_drive_t *drive)
-{
-        struct pci_dev *dev     = HWIF(drive)->pci_dev;
-        u8 mode = 0;
-
-        switch(dev->device) {
-                case PCI_DEVICE_ID_CMD_649:
-                        mode = 3;
-                        break;
-                case PCI_DEVICE_ID_CMD_648:
-                        mode = 2;
-                        break;
-                case PCI_DEVICE_ID_CMD_643:
-                        return 0;
-
-                case PCI_DEVICE_ID_CMD_646:
-                {
-                        unsigned int class_rev  = 0;
-                        pci_read_config_dword(dev,
-                                PCI_CLASS_REVISION, &class_rev);
-                        class_rev &= 0xff;
-                /*
-                 * UltraDMA only supported on PCI646U and PCI646U2, which
-                 * correspond to revisions 0x03, 0x05 and 0x07 respectively.
-                 * Actually, although the CMD tech support people won't
-                 * tell me the details, the 0x03 revision cannot support
-                 * UDMA correctly without hardware modifications, and even
-                 * then it only works with Quantum disks due to some
-                 * hold time assumptions in the 646U part which are fixed
-                 * in the 646U2.
-                 *
-                 * So we only do UltraDMA on revision 0x05 and 0x07 chipsets.
-                 */
-                        switch(class_rev) {
-                                case 0x07:
-                                case 0x05:
-                                        return 1;
-                                case 0x03:
-                                case 0x01:
-                                default:
-                                        return 0;
-                        }
-                }
-        }
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
-}
-
 static int cmd64x_tune_chipset (ide_drive_t *drive, u8 speed)
 {
         ide_hwif_t *hwif        = HWIF(drive);
@@ -348,7 +299,7 @@ static int cmd64x_tune_chipset (ide_drive_t *drive, u8 speed)
         u8 unit                 = drive->dn & 0x01;
         u8 regU = 0, pciU       = hwif->channel ? UDIDETCR1 : UDIDETCR0;
 
-        speed = ide_rate_filter(cmd64x_ratemask(drive), speed);
+        speed = ide_rate_filter(drive, speed);
 
         if (speed >= XFER_SW_DMA_0) {
                 (void) pci_read_config_byte(dev, pciU, &regU);
@@ -403,7 +354,7 @@ static int cmd64x_tune_chipset (ide_drive_t *drive, u8 speed)
 
 static int config_chipset_for_dma (ide_drive_t *drive)
 {
-        u8 speed        = ide_dma_speed(drive, cmd64x_ratemask(drive));
+        u8 speed = ide_max_dma_mode(drive);
 
         if (!speed)
                 return 0;
@@ -597,7 +548,7 @@ static unsigned int __devinit init_chipset_cmd64x(struct pci_dev *dev, const cha
         (void) pci_write_config_byte(dev, UDIDETCR0, 0xf0);
 #endif /* CONFIG_PPC */
 
-#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_PROC_FS)
+#if defined(DISPLAY_CMD64X_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
 
         cmd_devs[n_cmd_devs++] = dev;
 
@@ -605,7 +556,7 @@ static unsigned int __devinit init_chipset_cmd64x(struct pci_dev *dev, const cha
                 cmd64x_proc = 1;
                 ide_pci_create_host_proc("cmd64x", cmd64x_get_info);
         }
-#endif /* DISPLAY_CMD64X_TIMINGS && CONFIG_PROC_FS */
+#endif /* DISPLAY_CMD64X_TIMINGS && CONFIG_IDE_PROC_FS */
 
         return 0;
 }
@@ -644,15 +595,24 @@ static void __devinit init_hwif_cmd64x(ide_hwif_t *hwif)
 
         hwif->atapi_dma = 1;
 
-        hwif->ultra_mask = 0x3f;
-        hwif->mwdma_mask = 0x07;
+        hwif->ultra_mask = hwif->cds->udma_mask;
+
+        /*
+         * UltraDMA only supported on PCI646U and PCI646U2, which
+         * correspond to revisions 0x03, 0x05 and 0x07 respectively.
+         * Actually, although the CMD tech support people won't
+         * tell me the details, the 0x03 revision cannot support
+         * UDMA correctly without hardware modifications, and even
+         * then it only works with Quantum disks due to some
+         * hold time assumptions in the 646U part which are fixed
+         * in the 646U2.
+         *
+         * So we only do UltraDMA on revision 0x05 and 0x07 chipsets.
+         */
+        if (dev->device == PCI_DEVICE_ID_CMD_646 && class_rev < 5)
+                hwif->ultra_mask = 0x00;
 
-        if (dev->device == PCI_DEVICE_ID_CMD_643)
-                hwif->ultra_mask = 0x80;
-        if (dev->device == PCI_DEVICE_ID_CMD_646)
-                hwif->ultra_mask = (class_rev > 0x04) ? 0x07 : 0x80;
-        if (dev->device == PCI_DEVICE_ID_CMD_648)
-                hwif->ultra_mask = 0x1f;
+        hwif->mwdma_mask = 0x07;
 
         hwif->ide_dma_check = &cmd64x_config_drive_for_dma;
         if (!(hwif->udma_four))
@@ -716,6 +676,7 @@ static ide_pci_device_t cmd64x_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .enablebits     = {{0x00,0x00,0x00}, {0x51,0x08,0x08}},
                 .bootable       = ON_BOARD,
+                .udma_mask      = 0x00, /* no udma */
         },{     /* 1 */
                 .name           = "CMD646",
                 .init_setup     = init_setup_cmd646,
@@ -725,6 +686,7 @@ static ide_pci_device_t cmd64x_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .enablebits     = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
                 .bootable       = ON_BOARD,
+                .udma_mask      = 0x07, /* udma0-2 */
         },{     /* 2 */
                 .name           = "CMD648",
                 .init_setup     = init_setup_cmd64x,
@@ -734,6 +696,7 @@ static ide_pci_device_t cmd64x_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .enablebits     = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
                 .bootable       = ON_BOARD,
+                .udma_mask      = 0x1f, /* udma0-4 */
         },{     /* 3 */
                 .name           = "CMD649",
                 .init_setup     = init_setup_cmd64x,
@@ -743,6 +706,7 @@ static ide_pci_device_t cmd64x_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .enablebits     = {{0x51,0x04,0x04}, {0x51,0x08,0x08}},
                 .bootable       = ON_BOARD,
+                .udma_mask      = 0x3f, /* udma0-5 */
         }
 };
 
diff --git a/drivers/ide/pci/cs5520.c b/drivers/ide/pci/cs5520.c
index 400859a839f7..3b88a3a56116 100644
--- a/drivers/ide/pci/cs5520.c
+++ b/drivers/ide/pci/cs5520.c
@@ -213,6 +213,7 @@ static ide_pci_device_t cyrix_chipsets[] __devinitdata = {
  
 static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
+        ide_hwif_t *hwif = NULL, *mate = NULL;
         ata_index_t index;
         ide_pci_device_t *d = &cyrix_chipsets[id->driver_data];
 
@@ -239,10 +240,21 @@ static int __devinit cs5520_init_one(struct pci_dev *dev, const struct pci_devic
 
         ide_pci_setup_ports(dev, d, 14, &index);
 
-        if((index.b.low & 0xf0) != 0xf0)
-                probe_hwif_init(&ide_hwifs[index.b.low]);
-        if((index.b.high & 0xf0) != 0xf0)
-                probe_hwif_init(&ide_hwifs[index.b.high]);
+        if ((index.b.low & 0xf0) != 0xf0)
+                hwif = &ide_hwifs[index.b.low];
+        if ((index.b.high & 0xf0) != 0xf0)
+                mate = &ide_hwifs[index.b.high];
+
+        if (hwif)
+                probe_hwif_init(hwif);
+        if (mate)
+                probe_hwif_init(mate);
+
+        if (hwif)
+                ide_proc_register_port(hwif);
+        if (mate)
+                ide_proc_register_port(mate);
+
         return 0;
 }
 
diff --git a/drivers/ide/pci/cs5535.c b/drivers/ide/pci/cs5535.c
index 45f43efbf92c..41925c47ef05 100644
--- a/drivers/ide/pci/cs5535.c
+++ b/drivers/ide/pci/cs5535.c
@@ -127,20 +127,6 @@ static void cs5535_set_speed(ide_drive_t *drive, u8 speed)
         }
 }
 
-static u8 cs5535_ratemask(ide_drive_t *drive)
-{
-        /* eighty93 will return 1 if it's 80core and capable of
-        exceeding udma2, 0 otherwise. we need ratemask to set
-        the max speed and if we can > udma2 then we return 2
-        which selects speed_max as udma4 which is the 5535's max
-        speed, and 1 selects udma2 which is the max for 40c */
-        if (!eighty_ninty_three(drive))
-                return 1;
-
-        return 2;
-}
-
-
 /****
  *      cs5535_set_drive         -     Configure the drive to the new speed
  *      @drive: Drive to set up
@@ -151,7 +137,7 @@ static u8 cs5535_ratemask(ide_drive_t *drive)
  */
 static int cs5535_set_drive(ide_drive_t *drive, u8 speed)
 {
-        speed = ide_rate_filter(cs5535_ratemask(drive), speed);
+        speed = ide_rate_filter(drive, speed);
         ide_config_drive_speed(drive, speed);
         cs5535_set_speed(drive, speed);
 
@@ -178,28 +164,13 @@ static void cs5535_tuneproc(ide_drive_t *drive, u8 xferspeed)
         cs5535_set_speed(drive, xferspeed);
 }
 
-static int cs5535_config_drive_for_dma(ide_drive_t *drive)
-{
-        u8 speed;
-
-        speed = ide_dma_speed(drive, cs5535_ratemask(drive));
-
-        /* If no DMA speed was available then let dma_check hit pio */
-        if (!speed) {
-                return 0;
-        }
-
-        cs5535_set_drive(drive, speed);
-        return ide_dma_enable(drive);
-}
-
 static int cs5535_dma_check(ide_drive_t *drive)
 {
         u8 speed;
 
         drive->init_speed = 0;
 
-        if (ide_use_dma(drive) && cs5535_config_drive_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         if (ide_use_fast_pio(drive)) {
diff --git a/drivers/ide/pci/delkin_cb.c b/drivers/ide/pci/delkin_cb.c
index dd7ec37fdeab..46f4a888c037 100644
--- a/drivers/ide/pci/delkin_cb.c
+++ b/drivers/ide/pci/delkin_cb.c
@@ -80,7 +80,7 @@ delkin_cb_probe (struct pci_dev *dev, const struct pci_device_id *id)
         hw.irq = dev->irq;
         hw.chipset = ide_pci;           /* this enables IRQ sharing */
 
-        rc = ide_register_hw_with_fixup(&hw, &hwif, ide_undecoded_slave);
+        rc = ide_register_hw_with_fixup(&hw, 0, &hwif, ide_undecoded_slave);
         if (rc < 0) {
                 printk(KERN_ERR "delkin_cb: ide_register_hw failed (%d)\n", rc);
                 pci_disable_device(dev);
diff --git a/drivers/ide/pci/hpt34x.c b/drivers/ide/pci/hpt34x.c
index 924eaa3a5708..2c24c3de8846 100644
--- a/drivers/ide/pci/hpt34x.c
+++ b/drivers/ide/pci/hpt34x.c
@@ -43,15 +43,10 @@
 
 #define HPT343_DEBUG_DRIVE_INFO         0
 
-static u8 hpt34x_ratemask (ide_drive_t *drive)
-{
-        return 1;
-}
-
 static int hpt34x_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 {
         struct pci_dev *dev     = HWIF(drive)->pci_dev;
-        u8 speed        = ide_rate_filter(hpt34x_ratemask(drive), xferspeed);
+        u8 speed = ide_rate_filter(drive, xferspeed);
         u32 reg1= 0, tmp1 = 0, reg2 = 0, tmp2 = 0;
         u8                      hi_speed, lo_speed;
 
@@ -89,29 +84,11 @@ static void hpt34x_tune_drive (ide_drive_t *drive, u8 pio)
         (void) hpt34x_tune_chipset(drive, (XFER_PIO_0 + pio));
 }
 
-/*
- * This allows the configuration of ide_pci chipset registers
- * for cards that learn about the drive's UDMA, DMA, PIO capabilities
- * after the drive is reported by the OS.  Initially for designed for
- * HPT343 UDMA chipset by HighPoint|Triones Technologies, Inc.
- */
-
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
-        u8 speed = ide_dma_speed(drive, hpt34x_ratemask(drive));
-
-        if (!(speed))
-                return 0;
-
-        (void) hpt34x_tune_chipset(drive, speed);
-        return ide_dma_enable(drive);
-}
-
 static int hpt34x_config_drive_xfer_rate (ide_drive_t *drive)
 {
         drive->init_speed = 0;
 
-        if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+        if (ide_tune_dma(drive))
 #ifndef CONFIG_HPT34X_AUTODMA
                 return -1;
 #else
diff --git a/drivers/ide/pci/hpt366.c b/drivers/ide/pci/hpt366.c
index cf9d344d19f8..fcbc5605b38e 100644
--- a/drivers/ide/pci/hpt366.c
+++ b/drivers/ide/pci/hpt366.c
@@ -514,43 +514,31 @@ static int check_in_drive_list(ide_drive_t *drive, const char **list)
         return 0;
 }
 
-static u8 hpt3xx_ratemask(ide_drive_t *drive)
-{
-        struct hpt_info *info   = pci_get_drvdata(HWIF(drive)->pci_dev);
-        u8 mode                 = info->max_mode;
-
-        if (!eighty_ninty_three(drive) && mode)
-                mode = min(mode, (u8)1);
-        return mode;
-}
-
 /*
  *      Note for the future; the SATA hpt37x we must set
  *      either PIO or UDMA modes 0,4,5
  */
- 
-static u8 hpt3xx_ratefilter(ide_drive_t *drive, u8 speed)
+
+static u8 hpt3xx_udma_filter(ide_drive_t *drive)
 {
         struct hpt_info *info   = pci_get_drvdata(HWIF(drive)->pci_dev);
         u8 chip_type            = info->chip_type;
-        u8 mode                 = hpt3xx_ratemask(drive);
-
-        if (drive->media != ide_disk)
-                return min(speed, (u8)XFER_PIO_4);
+        u8 mode                 = info->max_mode;
+        u8 mask;
 
         switch (mode) {
                 case 0x04:
-                        speed = min_t(u8, speed, XFER_UDMA_6);
+                        mask = 0x7f;
                         break;
                 case 0x03:
-                        speed = min_t(u8, speed, XFER_UDMA_5);
+                        mask = 0x3f;
                         if (chip_type >= HPT374)
                                 break;
                         if (!check_in_drive_list(drive, bad_ata100_5))
                                 goto check_bad_ata33;
                         /* fall thru */
                 case 0x02:
-                        speed = min_t(u8, speed, XFER_UDMA_4);
+                        mask = 0x1f;
 
                         /*
                          * CHECK ME, Does this need to be changed to HPT374 ??
@@ -561,13 +549,13 @@ static u8 hpt3xx_ratefilter(ide_drive_t *drive, u8 speed)
                             !check_in_drive_list(drive, bad_ata66_4))
                                 goto check_bad_ata33;
 
-                        speed = min_t(u8, speed, XFER_UDMA_3);
+                        mask = 0x0f;
                         if (HPT366_ALLOW_ATA66_3 &&
                             !check_in_drive_list(drive, bad_ata66_3))
                                 goto check_bad_ata33;
                         /* fall thru */
                 case 0x01:
-                        speed = min_t(u8, speed, XFER_UDMA_2);
+                        mask = 0x07;
 
                 check_bad_ata33:
                         if (chip_type >= HPT370A)
@@ -577,10 +565,10 @@ static u8 hpt3xx_ratefilter(ide_drive_t *drive, u8 speed)
                         /* fall thru */
                 case 0x00:
                 default:
-                        speed = min_t(u8, speed, XFER_MW_DMA_2);
+                        mask = 0x00;
                         break;
         }
-        return speed;
+        return mask;
 }
 
 static u32 get_speed_setting(u8 speed, struct hpt_info *info)
@@ -608,12 +596,19 @@ static int hpt36x_tune_chipset(ide_drive_t *drive, u8 xferspeed)
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev  *dev    = hwif->pci_dev;
         struct hpt_info *info   = pci_get_drvdata(dev);
-        u8  speed               = hpt3xx_ratefilter(drive, xferspeed);
+        u8  speed               = ide_rate_filter(drive, xferspeed);
         u8  itr_addr            = drive->dn ? 0x44 : 0x40;
-        u32 itr_mask            = speed < XFER_MW_DMA_0 ? 0x30070000 :
-                                 (speed < XFER_UDMA_0   ? 0xc0070000 : 0xc03800ff);
-        u32 new_itr             = get_speed_setting(speed, info);
         u32 old_itr             = 0;
+        u32 itr_mask, new_itr;
+
+        /* TODO: move this to ide_rate_filter() [ check ->atapi_dma ] */
+        if (drive->media != ide_disk)
+                speed = min_t(u8, speed, XFER_PIO_4);
+
+        itr_mask = speed < XFER_MW_DMA_0 ? 0x30070000 :
+                  (speed < XFER_UDMA_0   ? 0xc0070000 : 0xc03800ff);
+
+        new_itr = get_speed_setting(speed, info);
 
         /*
          * Disable on-chip PIO FIFO/buffer (and PIO MST mode as well)
@@ -633,12 +628,19 @@ static int hpt37x_tune_chipset(ide_drive_t *drive, u8 xferspeed)
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev  *dev    = hwif->pci_dev;
         struct hpt_info *info   = pci_get_drvdata(dev);
-        u8  speed               = hpt3xx_ratefilter(drive, xferspeed);
+        u8  speed               = ide_rate_filter(drive, xferspeed);
         u8  itr_addr            = 0x40 + (drive->dn * 4);
-        u32 itr_mask            = speed < XFER_MW_DMA_0 ? 0x303c0000 :
-                                 (speed < XFER_UDMA_0   ? 0xc03c0000 : 0xc1c001ff);
-        u32 new_itr             = get_speed_setting(speed, info);
         u32 old_itr             = 0;
+        u32 itr_mask, new_itr;
+
+        /* TODO: move this to ide_rate_filter() [ check ->atapi_dma ] */
+        if (drive->media != ide_disk)
+                speed = min_t(u8, speed, XFER_PIO_4);
+
+        itr_mask = speed < XFER_MW_DMA_0 ? 0x303c0000 :
+                  (speed < XFER_UDMA_0   ? 0xc03c0000 : 0xc1c001ff);
+
+        new_itr = get_speed_setting(speed, info);
 
         pci_read_config_dword(dev, itr_addr, &old_itr);
         new_itr = (new_itr & ~itr_mask) | (old_itr & itr_mask);
@@ -667,24 +669,6 @@ static void hpt3xx_tune_drive(ide_drive_t *drive, u8 pio)
         (void) hpt3xx_tune_chipset (drive, XFER_PIO_0 + pio);
 }
 
-/*
- * This allows the configuration of ide_pci chipset registers
- * for cards that learn about the drive's UDMA, DMA, PIO capabilities
- * after the drive is reported by the OS.  Initially designed for
- * HPT366 UDMA chipset by HighPoint|Triones Technologies, Inc.
- *
- */
-static int config_chipset_for_dma(ide_drive_t *drive)
-{
-        u8 speed = ide_dma_speed(drive, hpt3xx_ratemask(drive));
-
-        if (!speed)
-                return 0;
-
-        (void) hpt3xx_tune_chipset(drive, speed);
-        return ide_dma_enable(drive);
-}
-
 static int hpt3xx_quirkproc(ide_drive_t *drive)
 {
         struct hd_driveid *id   = drive->id;
@@ -739,7 +723,7 @@ static int hpt366_config_drive_xfer_rate(ide_drive_t *drive)
 {
         drive->init_speed = 0;
 
-        if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         if (ide_use_fast_pio(drive))
@@ -1271,6 +1255,7 @@ static void __devinit init_hwif_hpt366(ide_hwif_t *hwif)
         hwif->intrproc                  = &hpt3xx_intrproc;
         hwif->maskproc                  = &hpt3xx_maskproc;
         hwif->busproc                   = &hpt3xx_busproc;
+        hwif->udma_filter               = &hpt3xx_udma_filter;
 
         /*
          * HPT3xxN chips have some complications:
diff --git a/drivers/ide/pci/it8213.c b/drivers/ide/pci/it8213.c
index 424f00bb160d..c04a02687b95 100644
--- a/drivers/ide/pci/it8213.c
+++ b/drivers/ide/pci/it8213.c
@@ -17,22 +17,6 @@
 
 #include <asm/io.h>
 
-/*
- *      it8213_ratemask -       Compute available modes
- *      @drive: IDE drive
- *
- *      Compute the available speeds for the devices on the interface. This
- *      is all modes to ATA133 clipped by drive cable setup.
- */
-
-static u8 it8213_ratemask (ide_drive_t *drive)
-{
-        u8 mode = 4;
-        if (!eighty_ninty_three(drive))
-                mode = min_t(u8, mode, 1);
-        return mode;
-}
-
 /**
  *      it8213_dma_2_pio                -       return the PIO mode matching DMA
  *      @xfer_rate: transfer speed
@@ -145,7 +129,7 @@ static int it8213_tune_chipset (ide_drive_t *drive, u8 xferspeed)
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev *dev     = hwif->pci_dev;
         u8 maslave              = 0x40;
-        u8 speed                = ide_rate_filter(it8213_ratemask(drive), xferspeed);
+        u8 speed                = ide_rate_filter(drive, xferspeed);
         int a_speed             = 3 << (drive->dn * 4);
         int u_flag              = 1 << drive->dn;
         int v_flag              = 0x01 << drive->dn;
@@ -213,25 +197,6 @@ static int it8213_tune_chipset (ide_drive_t *drive, u8 xferspeed)
         return ide_config_drive_speed(drive, speed);
 }
 
-/*
- *      config_chipset_for_dma  -       configure for DMA
- *      @drive: drive to configure
- *
- *      Called by the IDE layer when it wants the timings set up.
- */
-
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
-        u8 speed = ide_dma_speed(drive, it8213_ratemask(drive));
-
-        if (!speed)
-                return 0;
-
-        it8213_tune_chipset(drive, speed);
-
-        return ide_dma_enable(drive);
-}
-
 /**
  *      it8213_configure_drive_for_dma  -       set up for DMA transfers
  *      @drive: drive we are going to set up
@@ -246,7 +211,7 @@ static int it8213_config_drive_for_dma (ide_drive_t *drive)
 {
         u8 pio;
 
-        if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         pio = ide_get_best_pio_mode(drive, 255, 4, NULL);
diff --git a/drivers/ide/pci/it821x.c b/drivers/ide/pci/it821x.c
index 4e1254813ee0..442f658c6ae7 100644
--- a/drivers/ide/pci/it821x.c
+++ b/drivers/ide/pci/it821x.c
@@ -229,22 +229,6 @@ static void it821x_clock_strategy(ide_drive_t *drive)
 }
 
 /**
- *      it821x_ratemask -       Compute available modes
- *      @drive: IDE drive
- *
- *      Compute the available speeds for the devices on the interface. This
- *      is all modes to ATA133 clipped by drive cable setup.
- */
-
-static u8 it821x_ratemask (ide_drive_t *drive)
-{
-        u8 mode = 4;
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
-}
-
-/**
  *      it821x_tunepio  -       tune a drive
  *      @drive: drive to tune
  *      @pio: the desired PIO mode
@@ -438,7 +422,7 @@ static int it821x_tune_chipset (ide_drive_t *drive, byte xferspeed)
 
         ide_hwif_t *hwif        = drive->hwif;
         struct it821x_dev *itdev = ide_get_hwifdata(hwif);
-        u8 speed                = ide_rate_filter(it821x_ratemask(drive), xferspeed);
+        u8 speed                = ide_rate_filter(drive, xferspeed);
 
         switch (speed) {
         case XFER_PIO_4:
@@ -488,7 +472,7 @@ static int it821x_tune_chipset (ide_drive_t *drive, byte xferspeed)
 
 static int config_chipset_for_dma (ide_drive_t *drive)
 {
-        u8 speed        = ide_dma_speed(drive, it821x_ratemask(drive));
+        u8 speed = ide_max_dma_mode(drive);
 
         if (speed == 0)
                 return 0;
diff --git a/drivers/ide/pci/jmicron.c b/drivers/ide/pci/jmicron.c
index be4fc96c29e0..76ed25147229 100644
--- a/drivers/ide/pci/jmicron.c
+++ b/drivers/ide/pci/jmicron.c
@@ -22,22 +22,6 @@ typedef enum {
 } port_type;
 
 /**
- *      jmicron_ratemask        -       Compute available modes
- *      @drive: IDE drive
- *
- *      Compute the available speeds for the devices on the interface. This
- *      is all modes to ATA133 clipped by drive cable setup.
- */
-
-static u8 jmicron_ratemask(ide_drive_t *drive)
-{
-        u8 mode = 4;
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
-}
-
-/**
  *      ata66_jmicron           -       Cable check
  *      @hwif: IDE port
  *
@@ -129,32 +113,12 @@ static void config_jmicron_chipset_for_pio (ide_drive_t *drive, byte set_speed)
 
 static int jmicron_tune_chipset (ide_drive_t *drive, byte xferspeed)
 {
-
-        u8 speed                = ide_rate_filter(jmicron_ratemask(drive), xferspeed);
+        u8 speed = ide_rate_filter(drive, xferspeed);
 
         return ide_config_drive_speed(drive, speed);
 }
 
 /**
- *      config_chipset_for_dma  -       configure for DMA
- *      @drive: drive to configure
- *
- *      As the JMicron snoops for timings all we actually need to do is
- *      make sure we don't set an invalid mode.
- */
-
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
-        u8 speed        = ide_dma_speed(drive, jmicron_ratemask(drive));
-
-        if (!speed)
-                return 0;
-
-        jmicron_tune_chipset(drive, speed);
-        return ide_dma_enable(drive);
-}
-
-/**
  *      jmicron_configure_drive_for_dma -       set up for DMA transfers
  *      @drive: drive we are going to set up
  *
@@ -164,7 +128,7 @@ static int config_chipset_for_dma (ide_drive_t *drive)
 
 static int jmicron_config_drive_for_dma (ide_drive_t *drive)
 {
-        if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         config_jmicron_chipset_for_pio(drive, 1);
diff --git a/drivers/ide/pci/pdc202xx_new.c b/drivers/ide/pci/pdc202xx_new.c
index 2cdd629c653d..65b1e124edf7 100644
--- a/drivers/ide/pci/pdc202xx_new.c
+++ b/drivers/ide/pci/pdc202xx_new.c
@@ -37,8 +37,6 @@
 #include <asm/pci-bridge.h>
 #endif
 
-#define PDC202_DEBUG_CABLE      0
-
 #undef DEBUG
 
 #ifdef DEBUG
@@ -82,16 +80,6 @@ static u8 max_dma_rate(struct pci_dev *pdev)
         return mode;
 }
 
-static u8 pdcnew_ratemask(ide_drive_t *drive)
-{
-        u8 mode = max_dma_rate(HWIF(drive)->pci_dev);
-
-        if (!eighty_ninty_three(drive))
-                mode = min_t(u8, mode, 1);
-
-        return  mode;
-}
-
 /**
  * get_indexed_reg - Get indexed register
  * @hwif: for the port address
@@ -164,7 +152,7 @@ static int pdcnew_tune_chipset(ide_drive_t *drive, u8 speed)
         u8 adj                  = (drive->dn & 1) ? 0x08 : 0x00;
         int                     err;
 
-        speed = ide_rate_filter(pdcnew_ratemask(drive), speed);
+        speed = ide_rate_filter(drive, speed);
 
         /*
          * Issue SETFEATURES_XFER to the drive first. PDC202xx hardware will
@@ -244,17 +232,8 @@ static int config_chipset_for_dma(ide_drive_t *drive)
 {
         struct hd_driveid *id   = drive->id;
         ide_hwif_t *hwif        = HWIF(drive);
-        u8 ultra_66             = (id->dma_ultra & 0x0078) ? 1 : 0;
-        u8 cable                = pdcnew_cable_detect(hwif);
         u8 speed;
 
-        if (ultra_66 && cable) {
-                printk(KERN_WARNING "Warning: %s channel "
-                       "requires an 80-pin cable for operation.\n",
-                       hwif->channel ? "Secondary" : "Primary");
-                printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
-        }
-
         if (id->capability & 4) {
                 /*
                  * Set IORDY_EN & PREFETCH_EN (this seems to have
@@ -267,7 +246,7 @@ static int config_chipset_for_dma(ide_drive_t *drive)
                 set_indexed_reg(hwif, 0x13 + adj, tmp | 0x03);
         }
 
-        speed = ide_dma_speed(drive, pdcnew_ratemask(drive));
+        speed = ide_max_dma_mode(drive);
 
         if (!speed)
                 return 0;
@@ -543,7 +522,8 @@ static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
         hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
 
         hwif->atapi_dma  = 1;
-        hwif->ultra_mask = 0x7f;
+
+        hwif->ultra_mask = hwif->cds->udma_mask;
         hwif->mwdma_mask = 0x07;
 
         hwif->err_stops_fifo = 1;
@@ -556,11 +536,6 @@ static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
         if (!noautodma)
                 hwif->autodma = 1;
         hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
-
-#if PDC202_DEBUG_CABLE
-        printk(KERN_DEBUG "%s: %s-pin cable\n",
-                hwif->name, hwif->udma_four ? "80" : "40");
-#endif /* PDC202_DEBUG_CABLE */
 }
 
 static int __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d)
@@ -619,6 +594,7 @@ static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
                 .channels       = 2,
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x3f, /* udma0-5 */
         },{     /* 1 */
                 .name           = "PDC20269",
                 .init_setup     = init_setup_pdcnew,
@@ -627,6 +603,7 @@ static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
                 .channels       = 2,
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x7f, /* udma0-6*/
         },{     /* 2 */
                 .name           = "PDC20270",
                 .init_setup     = init_setup_pdc20270,
@@ -635,6 +612,7 @@ static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
                 .channels       = 2,
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x3f, /* udma0-5 */
         },{     /* 3 */
                 .name           = "PDC20271",
                 .init_setup     = init_setup_pdcnew,
@@ -643,6 +621,7 @@ static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
                 .channels       = 2,
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x7f, /* udma0-6*/
         },{     /* 4 */
                 .name           = "PDC20275",
                 .init_setup     = init_setup_pdcnew,
@@ -651,6 +630,7 @@ static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
                 .channels       = 2,
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x7f, /* udma0-6*/
         },{     /* 5 */
                 .name           = "PDC20276",
                 .init_setup     = init_setup_pdc20276,
@@ -659,6 +639,7 @@ static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
                 .channels       = 2,
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x7f, /* udma0-6*/
         },{     /* 6 */
                 .name           = "PDC20277",
                 .init_setup     = init_setup_pdcnew,
@@ -667,6 +648,7 @@ static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
                 .channels       = 2,
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
+                .udma_mask      = 0x7f, /* udma0-6*/
         }
 };
 
diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
index a7a639fe1eaf..7146fe3f6ba7 100644
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -46,7 +46,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 
-#define PDC202_DEBUG_CABLE              0
 #define PDC202XX_DEBUG_DRIVE_INFO       0
 
 static const char *pdc_quirk_drives[] = {
@@ -101,35 +100,12 @@ static const char *pdc_quirk_drives[] = {
 #define MC1             0x02    /* DMA"C" timing */
 #define MC0             0x01    /* DMA"C" timing */
 
-static u8 pdc202xx_ratemask (ide_drive_t *drive)
-{
-        u8 mode;
-
-        switch(HWIF(drive)->pci_dev->device) {
-                case PCI_DEVICE_ID_PROMISE_20267:
-                case PCI_DEVICE_ID_PROMISE_20265:
-                        mode = 3;
-                        break;
-                case PCI_DEVICE_ID_PROMISE_20263:
-                case PCI_DEVICE_ID_PROMISE_20262:
-                        mode = 2;
-                        break;
-                case PCI_DEVICE_ID_PROMISE_20246:
-                        return 1;
-                default:
-                        return 0;
-        }
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
-}
-
 static int pdc202xx_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 {
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev *dev     = hwif->pci_dev;
         u8 drive_pci            = 0x60 + (drive->dn << 2);
-        u8 speed        = ide_rate_filter(pdc202xx_ratemask(drive), xferspeed);
+        u8 speed                = ide_rate_filter(drive, xferspeed);
 
         u32                     drive_conf;
         u8                      AP, BP, CP, DP;
@@ -261,20 +237,7 @@ static int config_chipset_for_dma (ide_drive_t *drive)
         u32 drive_conf          = 0;
         u8 drive_pci            = 0x60 + (drive->dn << 2);
         u8 test1 = 0, test2 = 0, speed = -1;
-        u8 AP = 0, cable = 0;
-
-        u8 ultra_66             = ((id->dma_ultra & 0x0010) ||
-                                   (id->dma_ultra & 0x0008)) ? 1 : 0;
-
-        if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
-                cable = pdc202xx_old_cable_detect(hwif);
-        else
-                ultra_66 = 0;
-
-        if (ultra_66 && cable) {
-                printk(KERN_WARNING "Warning: %s channel requires an 80-pin cable for operation.\n", hwif->channel ? "Secondary":"Primary");
-                printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
-        }
+        u8 AP = 0;
 
         if (dev->device != PCI_DEVICE_ID_PROMISE_20246)
                 pdc_old_disable_66MHz_clock(drive->hwif);
@@ -308,7 +271,7 @@ chipset_is_set:
         if (drive->media == ide_disk)   /* PREFETCH_EN */
                 pci_write_config_byte(dev, (drive_pci), AP|PREFETCH_EN);
 
-        speed = ide_dma_speed(drive, pdc202xx_ratemask(drive));
+        speed = ide_max_dma_mode(drive);
 
         if (!(speed)) {
                 /* restore original pci-config space */
@@ -478,7 +441,7 @@ static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
 
         hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
 
-        hwif->ultra_mask = 0x3f;
+        hwif->ultra_mask = hwif->cds->udma_mask;
         hwif->mwdma_mask = 0x07;
         hwif->swdma_mask = 0x07;
         hwif->atapi_dma = 1;
@@ -500,10 +463,6 @@ static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
         if (!noautodma)
                 hwif->autodma = 1;
         hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
-#if PDC202_DEBUG_CABLE
-        printk(KERN_DEBUG "%s: %s-pin cable\n",
-                hwif->name, hwif->udma_four ? "80" : "40");
-#endif /* PDC202_DEBUG_CABLE */ 
 }
 
 static void __devinit init_dma_pdc202xx(ide_hwif_t *hwif, unsigned long dmabase)
@@ -587,6 +546,7 @@ static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
                 .extra          = 16,
+                .udma_mask      = 0x07, /* udma0-2 */
         },{     /* 1 */
                 .name           = "PDC20262",
                 .init_setup     = init_setup_pdc202ata4,
@@ -597,6 +557,7 @@ static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
                 .extra          = 48,
+                .udma_mask      = 0x1f, /* udma0-4 */
         },{     /* 2 */
                 .name           = "PDC20263",
                 .init_setup     = init_setup_pdc202ata4,
@@ -607,6 +568,7 @@ static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
                 .extra          = 48,
+                .udma_mask      = 0x1f, /* udma0-4 */
         },{     /* 3 */
                 .name           = "PDC20265",
                 .init_setup     = init_setup_pdc20265,
@@ -617,6 +579,7 @@ static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
                 .extra          = 48,
+                .udma_mask      = 0x3f, /* udma0-5 */
         },{     /* 4 */
                 .name           = "PDC20267",
                 .init_setup     = init_setup_pdc202xx,
@@ -627,6 +590,7 @@ static ide_pci_device_t pdc202xx_chipsets[] __devinitdata = {
                 .autodma        = AUTODMA,
                 .bootable       = OFF_BOARD,
                 .extra          = 48,
+                .udma_mask      = 0x3f, /* udma0-5 */
         }
 };
 
diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
index 061d300ab8be..8b219dd63024 100644
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -106,68 +106,6 @@
 static int no_piix_dma;
 
 /**
- *      piix_ratemask           -       compute rate mask for PIIX IDE
- *      @drive: IDE drive to compute for
- *
- *      Returns the available modes for the PIIX IDE controller.
- */
- 
-static u8 piix_ratemask (ide_drive_t *drive)
-{
-        struct pci_dev *dev     = HWIF(drive)->pci_dev;
-        u8 mode;
-
-        switch(dev->device) {
-                case PCI_DEVICE_ID_INTEL_82801EB_1:
-                        mode = 3;
-                        break;
-                /* UDMA 100 capable */
-                case PCI_DEVICE_ID_INTEL_82801BA_8:
-                case PCI_DEVICE_ID_INTEL_82801BA_9:
-                case PCI_DEVICE_ID_INTEL_82801CA_10:
-                case PCI_DEVICE_ID_INTEL_82801CA_11:
-                case PCI_DEVICE_ID_INTEL_82801E_11:
-                case PCI_DEVICE_ID_INTEL_82801DB_1:
-                case PCI_DEVICE_ID_INTEL_82801DB_10:
-                case PCI_DEVICE_ID_INTEL_82801DB_11:
-                case PCI_DEVICE_ID_INTEL_82801EB_11:
-                case PCI_DEVICE_ID_INTEL_ESB_2:
-                case PCI_DEVICE_ID_INTEL_ICH6_19:
-                case PCI_DEVICE_ID_INTEL_ICH7_21:
-                case PCI_DEVICE_ID_INTEL_ESB2_18:
-                case PCI_DEVICE_ID_INTEL_ICH8_6:
-                        mode = 3;
-                        break;
-                /* UDMA 66 capable */
-                case PCI_DEVICE_ID_INTEL_82801AA_1:
-                case PCI_DEVICE_ID_INTEL_82372FB_1:
-                        mode = 2;
-                        break;
-                /* UDMA 33 capable */
-                case PCI_DEVICE_ID_INTEL_82371AB:
-                case PCI_DEVICE_ID_INTEL_82443MX_1:
-                case PCI_DEVICE_ID_INTEL_82451NX:
-                case PCI_DEVICE_ID_INTEL_82801AB_1:
-                        return 1;
-                /* Non UDMA capable (MWDMA2) */
-                case PCI_DEVICE_ID_INTEL_82371SB_1:
-                case PCI_DEVICE_ID_INTEL_82371FB_1:
-                case PCI_DEVICE_ID_INTEL_82371FB_0:
-                case PCI_DEVICE_ID_INTEL_82371MX:
-                default:
-                        return 0;
-        }
-        
-        /*
-         *      If we are UDMA66 capable fall back to UDMA33 
-         *      if the drive cannot see an 80pin cable.
-         */
-        if (!eighty_ninty_three(drive))
-                mode = min_t(u8, mode, 1);
-        return mode;
-}
-
-/**
  *      piix_dma_2_pio          -       return the PIO mode matching DMA
  *      @xfer_rate: transfer speed
  *
@@ -301,7 +239,7 @@ static int piix_tune_chipset (ide_drive_t *drive, u8 xferspeed)
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev *dev     = hwif->pci_dev;
         u8 maslave              = hwif->channel ? 0x42 : 0x40;
-        u8 speed                = ide_rate_filter(piix_ratemask(drive), xferspeed);
+        u8 speed                = ide_rate_filter(drive, xferspeed);
         int a_speed             = 3 << (drive->dn * 4);
         int u_flag              = 1 << drive->dn;
         int v_flag              = 0x01 << drive->dn;
@@ -366,30 +304,6 @@ static int piix_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 }
 
 /**
- *      piix_config_drive_for_dma       -       configure drive for DMA
- *      @drive: IDE drive to configure
- *
- *      Set up a PIIX interface channel for the best available speed.
- *      We prefer UDMA if it is available and then MWDMA.  If DMA is
- *      not available we switch to PIO and return 0.
- */
- 
-static int piix_config_drive_for_dma (ide_drive_t *drive)
-{
-        u8 speed = ide_dma_speed(drive, piix_ratemask(drive));
-
-        /*
-         * If no DMA speed was available or the chipset has DMA bugs
-         * then disable DMA and use PIO
-         */
-        if (!speed)
-                return 0;
-
-        (void) piix_tune_chipset(drive, speed);
-        return ide_dma_enable(drive);
-}
-
-/**
  *      piix_config_drive_xfer_rate     -       set up an IDE device
  *      @drive: IDE drive to configure
  *
@@ -401,7 +315,7 @@ static int piix_config_drive_xfer_rate (ide_drive_t *drive)
 {
         drive->init_speed = 0;
 
-        if (ide_use_dma(drive) && piix_config_drive_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         if (ide_use_fast_pio(drive))
@@ -524,26 +438,14 @@ static void __devinit init_hwif_piix(ide_hwif_t *hwif)
                 hwif->ide_dma_clear_irq = &piix_dma_clear_irq;
 
         hwif->atapi_dma = 1;
-        hwif->ultra_mask = 0x3f;
+
+        hwif->ultra_mask = hwif->cds->udma_mask;
         hwif->mwdma_mask = 0x06;
         hwif->swdma_mask = 0x04;
 
-        switch(hwif->pci_dev->device) {
-                case PCI_DEVICE_ID_INTEL_82371FB_0:
-                case PCI_DEVICE_ID_INTEL_82371FB_1:
-                case PCI_DEVICE_ID_INTEL_82371SB_1:
-                        hwif->ultra_mask = 0x80;
-                        break;
-                case PCI_DEVICE_ID_INTEL_82371AB:
-                case PCI_DEVICE_ID_INTEL_82443MX_1:
-                case PCI_DEVICE_ID_INTEL_82451NX:
-                case PCI_DEVICE_ID_INTEL_82801AB_1:
-                        hwif->ultra_mask = 0x07;
-                        break;
-                default:
-                        if (!hwif->udma_four)
-                                hwif->udma_four = piix_cable_detect(hwif);
-                        break;
+        if (hwif->ultra_mask & 0x78) {
+                if (!hwif->udma_four)
+                        hwif->udma_four = piix_cable_detect(hwif);
         }
 
         if (no_piix_dma)
@@ -557,7 +459,7 @@ static void __devinit init_hwif_piix(ide_hwif_t *hwif)
         hwif->drives[0].autodma = hwif->autodma;
 }
 
-#define DECLARE_PIIX_DEV(name_str) \
+#define DECLARE_PIIX_DEV(name_str, udma) \
         {                                               \
                 .name           = name_str,             \
                 .init_chipset   = init_chipset_piix,    \
@@ -566,11 +468,12 @@ static void __devinit init_hwif_piix(ide_hwif_t *hwif)
                 .autodma        = AUTODMA,              \
                 .enablebits     = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \
                 .bootable       = ON_BOARD,             \
+                .udma_mask      = udma,                 \
         }
 
 static ide_pci_device_t piix_pci_info[] __devinitdata = {
-        /*  0 */ DECLARE_PIIX_DEV("PIIXa"),
-        /*  1 */ DECLARE_PIIX_DEV("PIIXb"),
+        /*  0 */ DECLARE_PIIX_DEV("PIIXa", 0x00),       /* no udma */
+        /*  1 */ DECLARE_PIIX_DEV("PIIXb", 0x00),       /* no udma */
 
         /*  2 */
         {       /*
@@ -587,28 +490,28 @@ static ide_pci_device_t piix_pci_info[] __devinitdata = {
                 .flags          = IDEPCI_FLAG_ISA_PORTS
         },
 
-        /*  3 */ DECLARE_PIIX_DEV("PIIX3"),
-        /*  4 */ DECLARE_PIIX_DEV("PIIX4"),
-        /*  5 */ DECLARE_PIIX_DEV("ICH0"),
-        /*  6 */ DECLARE_PIIX_DEV("PIIX4"),
-        /*  7 */ DECLARE_PIIX_DEV("ICH"),
-        /*  8 */ DECLARE_PIIX_DEV("PIIX4"),
-        /*  9 */ DECLARE_PIIX_DEV("PIIX4"),
-        /* 10 */ DECLARE_PIIX_DEV("ICH2"),
-        /* 11 */ DECLARE_PIIX_DEV("ICH2M"),
-        /* 12 */ DECLARE_PIIX_DEV("ICH3M"),
-        /* 13 */ DECLARE_PIIX_DEV("ICH3"),
-        /* 14 */ DECLARE_PIIX_DEV("ICH4"),
-        /* 15 */ DECLARE_PIIX_DEV("ICH5"),
-        /* 16 */ DECLARE_PIIX_DEV("C-ICH"),
-        /* 17 */ DECLARE_PIIX_DEV("ICH4"),
-        /* 18 */ DECLARE_PIIX_DEV("ICH5-SATA"),
-        /* 19 */ DECLARE_PIIX_DEV("ICH5"),
-        /* 20 */ DECLARE_PIIX_DEV("ICH6"),
-        /* 21 */ DECLARE_PIIX_DEV("ICH7"),
-        /* 22 */ DECLARE_PIIX_DEV("ICH4"),
-        /* 23 */ DECLARE_PIIX_DEV("ESB2"),
-        /* 24 */ DECLARE_PIIX_DEV("ICH8M"),
+        /*  3 */ DECLARE_PIIX_DEV("PIIX3", 0x00),       /* no udma */
+        /*  4 */ DECLARE_PIIX_DEV("PIIX4", 0x07),       /* udma0-2 */
+        /*  5 */ DECLARE_PIIX_DEV("ICH0",  0x07),       /* udma0-2 */
+        /*  6 */ DECLARE_PIIX_DEV("PIIX4", 0x07),       /* udma0-2 */
+        /*  7 */ DECLARE_PIIX_DEV("ICH",   0x1f),       /* udma0-4 */
+        /*  8 */ DECLARE_PIIX_DEV("PIIX4", 0x1f),       /* udma0-4 */
+        /*  9 */ DECLARE_PIIX_DEV("PIIX4", 0x07),       /* udma0-2 */
+        /* 10 */ DECLARE_PIIX_DEV("ICH2",  0x3f),       /* udma0-5 */
+        /* 11 */ DECLARE_PIIX_DEV("ICH2M", 0x3f),       /* udma0-5 */
+        /* 12 */ DECLARE_PIIX_DEV("ICH3M", 0x3f),       /* udma0-5 */
+        /* 13 */ DECLARE_PIIX_DEV("ICH3",  0x3f),       /* udma0-5 */
+        /* 14 */ DECLARE_PIIX_DEV("ICH4",  0x3f),       /* udma0-5 */
+        /* 15 */ DECLARE_PIIX_DEV("ICH5",  0x3f),       /* udma0-5 */
+        /* 16 */ DECLARE_PIIX_DEV("C-ICH", 0x3f),       /* udma0-5 */
+        /* 17 */ DECLARE_PIIX_DEV("ICH4",  0x3f),       /* udma0-5 */
+        /* 18 */ DECLARE_PIIX_DEV("ICH5-SATA", 0x3f),   /* udma0-5 */
+        /* 19 */ DECLARE_PIIX_DEV("ICH5",  0x3f),       /* udma0-5 */
+        /* 20 */ DECLARE_PIIX_DEV("ICH6",  0x3f),       /* udma0-5 */
+        /* 21 */ DECLARE_PIIX_DEV("ICH7",  0x3f),       /* udma0-5 */
+        /* 22 */ DECLARE_PIIX_DEV("ICH4",  0x3f),       /* udma0-5 */
+        /* 23 */ DECLARE_PIIX_DEV("ESB2",  0x3f),       /* udma0-5 */
+        /* 24 */ DECLARE_PIIX_DEV("ICH8M", 0x3f),       /* udma0-5 */
 };
 
 /**
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index f84bf791f72e..cbf936325355 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -190,23 +190,6 @@ scc_ide_outsl(unsigned long port, void *addr, u32 count)
 }
 
 /**
- *      scc_ratemask    -       Compute available modes
- *      @drive: IDE drive
- *
- *      Compute the available speeds for the devices on the interface.
- *      Enforce UDMA33 as a limit if there is no 80pin cable present.
- */
-
-static u8 scc_ratemask(ide_drive_t *drive)
-{
-        u8 mode = 4;
-
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
-}
-
-/**
  *      scc_tuneproc    -       tune a drive PIO mode
  *      @drive: drive to tune
  *      @mode_wanted: the target operating mode
@@ -273,7 +256,7 @@ static void scc_tuneproc(ide_drive_t *drive, byte mode_wanted)
 static int scc_tune_chipset(ide_drive_t *drive, byte xferspeed)
 {
         ide_hwif_t *hwif = HWIF(drive);
-        u8 speed = ide_rate_filter(scc_ratemask(drive), xferspeed);
+        u8 speed = ide_rate_filter(drive, xferspeed);
         struct scc_ports *ports = ide_get_hwifdata(hwif);
         unsigned long ctl_base = ports->ctl;
         unsigned long cckctrl_port = ctl_base + 0xff0;
@@ -347,7 +330,7 @@ static int scc_tune_chipset(ide_drive_t *drive, byte xferspeed)
 
 static int scc_config_chipset_for_dma(ide_drive_t *drive)
 {
-        u8 speed = ide_dma_speed(drive, scc_ratemask(drive));
+        u8 speed = ide_max_dma_mode(drive);
 
         if (!speed)
                 return 0;
diff --git a/drivers/ide/pci/serverworks.c b/drivers/ide/pci/serverworks.c
index dbcd37a0c652..2fa6d92d16cc 100644
--- a/drivers/ide/pci/serverworks.c
+++ b/drivers/ide/pci/serverworks.c
@@ -65,16 +65,16 @@ static int check_in_drive_lists (ide_drive_t *drive, const char **list)
         return 0;
 }
 
-static u8 svwks_ratemask (ide_drive_t *drive)
+static u8 svwks_udma_filter(ide_drive_t *drive)
 {
         struct pci_dev *dev     = HWIF(drive)->pci_dev;
-        u8 mode = 0;
+        u8 mask = 0;
 
         if (!svwks_revision)
                 pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision);
 
         if (dev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE)
-                return 2;
+                return 0x1f;
         if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
                 u32 reg = 0;
                 if (isa_dev)
@@ -86,25 +86,31 @@ static u8 svwks_ratemask (ide_drive_t *drive)
                 if(drive->media == ide_disk)
                         return 0;
                 /* Check the OSB4 DMA33 enable bit */
-                return ((reg & 0x00004000) == 0x00004000) ? 1 : 0;
+                return ((reg & 0x00004000) == 0x00004000) ? 0x07 : 0;
         } else if (svwks_revision < SVWKS_CSB5_REVISION_NEW) {
-                return 1;
+                return 0x07;
         } else if (svwks_revision >= SVWKS_CSB5_REVISION_NEW) {
-                u8 btr = 0;
+                u8 btr = 0, mode;
                 pci_read_config_byte(dev, 0x5A, &btr);
                 mode = btr & 0x3;
-                if (!eighty_ninty_three(drive))
-                        mode = min(mode, (u8)1);
+
                 /* If someone decides to do UDMA133 on CSB5 the same
                    issue will bite so be inclusive */
                 if (mode > 2 && check_in_drive_lists(drive, svwks_bad_ata100))
                         mode = 2;
+
+                switch(mode) {
+                case 2:  mask = 0x1f; break;
+                case 1:  mask = 0x07; break;
+                default: mask = 0x00; break;
+                }
         }
         if (((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) ||
              (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) &&
             (!(PCI_FUNC(dev->devfn) & 1)))
-                mode = 2;
-        return mode;
+                mask = 0x1f;
+
+        return mask;
 }
 
 static u8 svwks_csb_check (struct pci_dev *dev)
@@ -141,7 +147,7 @@ static int svwks_tune_chipset (ide_drive_t *drive, u8 xferspeed)
         if (xferspeed == 255)   /* PIO auto-tuning */
                 speed = XFER_PIO_0 + pio;
         else
-                speed = ide_rate_filter(svwks_ratemask(drive), xferspeed);
+                speed = ide_rate_filter(drive, xferspeed);
 
         /* If we are about to put a disk into UDMA mode we screwed up.
            Our code assumes we never _ever_ do this on an OSB4 */
@@ -304,7 +310,7 @@ static void svwks_tune_drive (ide_drive_t *drive, u8 pio)
 
 static int config_chipset_for_dma (ide_drive_t *drive)
 {
-        u8 speed = ide_dma_speed(drive, svwks_ratemask(drive));
+        u8 speed = ide_max_dma_mode(drive);
 
         if (!(speed))
                 speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);
@@ -500,6 +506,7 @@ static void __devinit init_hwif_svwks (ide_hwif_t *hwif)
 
         hwif->tuneproc = &svwks_tune_drive;
         hwif->speedproc = &svwks_tune_chipset;
+        hwif->udma_filter = &svwks_udma_filter;
 
         hwif->atapi_dma = 1;
 
diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index fd09b295a69d..d3185e29a38e 100644
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -692,7 +692,7 @@ sgiioc4_ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t * d)
                 return -EIO;
 
         /* Create /proc/ide entries */
-        create_proc_ide_interfaces();
+        ide_proc_register_port(hwif);
 
         return 0;
 }
diff --git a/drivers/ide/pci/siimage.c b/drivers/ide/pci/siimage.c
index c0188de3cc66..d09e74c2996e 100644
--- a/drivers/ide/pci/siimage.c
+++ b/drivers/ide/pci/siimage.c
@@ -122,45 +122,41 @@ static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
 }
 
 /**
- *      siimage_ratemask        -       Compute available modes
- *      @drive: IDE drive
+ *      sil_udma_filter         -       compute UDMA mask
+ *      @drive: IDE device
+ *
+ *      Compute the available UDMA speeds for the device on the interface.
  *
- *      Compute the available speeds for the devices on the interface.
  *      For the CMD680 this depends on the clocking mode (scsc), for the
- *      SI3312 SATA controller life is a bit simpler. Enforce UDMA33
- *      as a limit if there is no 80pin cable present.
+ *      SI3112 SATA controller life is a bit simpler.
  */
- 
-static byte siimage_ratemask (ide_drive_t *drive)
+
+static u8 sil_udma_filter(ide_drive_t *drive)
 {
-        ide_hwif_t *hwif        = HWIF(drive);
-        u8 mode = 0, scsc = 0;
+        ide_hwif_t *hwif = drive->hwif;
         unsigned long base = (unsigned long) hwif->hwif_data;
+        u8 mask = 0, scsc = 0;
 
         if (hwif->mmio)
                 scsc = hwif->INB(base + 0x4A);
         else
                 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
 
-        if(is_sata(hwif))
-        {
-                if(strstr(drive->id->model, "Maxtor"))
-                        return 3;
-                return 4;
+        if (is_sata(hwif)) {
+                mask = strstr(drive->id->model, "Maxtor") ? 0x3f : 0x7f;
+                goto out;
         }
-        
+
         if ((scsc & 0x30) == 0x10)      /* 133 */
-                mode = 4;
+                mask = 0x7f;
         else if ((scsc & 0x30) == 0x20) /* 2xPCI */
-                mode = 4;
+                mask = 0x7f;
         else if ((scsc & 0x30) == 0x00) /* 100 */
-                mode = 3;
+                mask = 0x3f;
         else    /* Disabled ? */
                 BUG();
-
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
+out:
+        return mask;
 }
 
 /**
@@ -306,7 +302,7 @@ static int siimage_tune_chipset (ide_drive_t *drive, byte xferspeed)
         ide_hwif_t *hwif        = HWIF(drive);
         u16 ultra = 0, multi    = 0;
         u8 mode = 0, unit       = drive->select.b.unit;
-        u8 speed                = ide_rate_filter(siimage_ratemask(drive), xferspeed);
+        u8 speed                = ide_rate_filter(drive, xferspeed);
         unsigned long base      = (unsigned long)hwif->hwif_data;
         u8 scsc = 0, addr_mask  = ((hwif->channel) ?
                                     ((hwif->mmio) ? 0xF4 : 0x84) :
@@ -389,7 +385,7 @@ static int siimage_tune_chipset (ide_drive_t *drive, byte xferspeed)
  
 static int config_chipset_for_dma (ide_drive_t *drive)
 {
-        u8 speed        = ide_dma_speed(drive, siimage_ratemask(drive));
+        u8 speed = ide_max_dma_mode(drive);
 
         if (!speed)
                 return 0;
@@ -831,7 +827,7 @@ static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
 
         /*
          *      Now set up the hw. We have to do this ourselves as
-         *      the MMIO layout isnt the same as the the standard port
+         *      the MMIO layout isnt the same as the standard port
          *      based I/O
          */
 
@@ -989,6 +985,7 @@ static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
         hwif->tuneproc  = &siimage_tuneproc;
         hwif->reset_poll = &siimage_reset_poll;
         hwif->pre_reset = &siimage_pre_reset;
+        hwif->udma_filter = &sil_udma_filter;
 
         if(is_sata(hwif)) {
                 static int first = 1;
diff --git a/drivers/ide/pci/sis5513.c b/drivers/ide/pci/sis5513.c
index 2ba0669f36a1..2bde1b92784a 100644
--- a/drivers/ide/pci/sis5513.c
+++ b/drivers/ide/pci/sis5513.c
@@ -191,7 +191,7 @@ static char* chipset_capability[] = {
         "ATA 133 (1st gen)", "ATA 133 (2nd gen)"
 };
 
-#if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS)
+#if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
 #include <linux/stat.h>
 #include <linux/proc_fs.h>
 
@@ -426,17 +426,7 @@ static int sis_get_info (char *buffer, char **addr, off_t offset, int count)
 
         return len > count ? count : len;
 }
-#endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS) */
-
-static u8 sis5513_ratemask (ide_drive_t *drive)
-{
-        u8 rates[] = { 0, 0, 1, 2, 3, 3, 4, 4 };
-        u8 mode = rates[chipset_family];
-
-        if (!eighty_ninty_three(drive))
-                mode = min(mode, (u8)1);
-        return mode;
-}
+#endif /* defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_IDE_PROC_FS) */
 
 /*
  * Configuration functions
@@ -563,7 +553,7 @@ static int sis5513_tune_chipset (ide_drive_t *drive, u8 xferspeed)
         u8 drive_pci, reg, speed;
         u32 regdw;
 
-        speed = ide_rate_filter(sis5513_ratemask(drive), xferspeed);
+        speed = ide_rate_filter(drive, xferspeed);
 
         /* See config_art_rwp_pio for drive pci config registers */
         drive_pci = 0x40;
@@ -648,32 +638,13 @@ static void sis5513_tune_drive (ide_drive_t *drive, u8 pio)
         (void) config_chipset_for_pio(drive, pio);
 }
 
-/*
- * ((id->hw_config & 0x4000|0x2000) && (HWIF(drive)->udma_four))
- */
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
-        u8 speed        = ide_dma_speed(drive, sis5513_ratemask(drive));
-
-#ifdef DEBUG
-        printk("SIS5513: config_chipset_for_dma, drive %d, ultra %x\n",
-               drive->dn, drive->id->dma_ultra);
-#endif
-
-        if (!(speed))
-                return 0;
-
-        sis5513_tune_chipset(drive, speed);
-        return ide_dma_enable(drive);
-}
-
 static int sis5513_config_xfer_rate(ide_drive_t *drive)
 {
         config_art_rwp_pio(drive, 5);
 
         drive->init_speed = 0;
 
-        if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         if (ide_use_fast_pio(drive))
@@ -826,7 +797,7 @@ static unsigned int __devinit init_chipset_sis5513 (struct pci_dev *dev, const c
                                 break;
                 }
 
-#if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_PROC_FS)
+#if defined(DISPLAY_SIS_TIMINGS) && defined(CONFIG_IDE_PROC_FS)
                 if (!sis_proc) {
                         sis_proc = 1;
                         bmide_dev = dev;
@@ -858,6 +829,8 @@ static unsigned int __devinit ata66_sis5513 (ide_hwif_t *hwif)
 
 static void __devinit init_hwif_sis5513 (ide_hwif_t *hwif)
 {
+        u8 udma_rates[] = { 0x00, 0x00, 0x07, 0x1f, 0x3f, 0x3f, 0x7f, 0x7f };
+
         hwif->autodma = 0;
 
         if (!hwif->irq)
@@ -873,7 +846,8 @@ static void __devinit init_hwif_sis5513 (ide_hwif_t *hwif)
         }
 
         hwif->atapi_dma = 1;
-        hwif->ultra_mask = 0x7f;
+
+        hwif->ultra_mask = udma_rates[chipset_family];
         hwif->mwdma_mask = 0x07;
         hwif->swdma_mask = 0x07;
 
diff --git a/drivers/ide/pci/slc90e66.c b/drivers/ide/pci/slc90e66.c
index 852ccb36da1d..c40f291f91e0 100644
--- a/drivers/ide/pci/slc90e66.c
+++ b/drivers/ide/pci/slc90e66.c
@@ -21,15 +21,6 @@
 
 #include <asm/io.h>
 
-static u8 slc90e66_ratemask (ide_drive_t *drive)
-{
-        u8 mode = 2;
-
-        if (!eighty_ninty_three(drive))
-                mode = min_t(u8, mode, 1);
-        return mode;
-}
-
 static u8 slc90e66_dma_2_pio (u8 xfer_rate) {
         switch(xfer_rate) {
                 case XFER_UDMA_4:
@@ -122,7 +113,7 @@ static int slc90e66_tune_chipset (ide_drive_t *drive, u8 xferspeed)
         ide_hwif_t *hwif        = HWIF(drive);
         struct pci_dev *dev     = hwif->pci_dev;
         u8 maslave              = hwif->channel ? 0x42 : 0x40;
-        u8 speed        = ide_rate_filter(slc90e66_ratemask(drive), xferspeed);
+        u8 speed                = ide_rate_filter(drive, xferspeed);
         int sitre = 0, a_speed  = 7 << (drive->dn * 4);
         int u_speed = 0, u_flag = 1 << drive->dn;
         u16                     reg4042, reg44, reg48, reg4a;
@@ -169,22 +160,11 @@ static int slc90e66_tune_chipset (ide_drive_t *drive, u8 xferspeed)
         return ide_config_drive_speed(drive, speed);
 }
 
-static int slc90e66_config_drive_for_dma (ide_drive_t *drive)
-{
-        u8 speed = ide_dma_speed(drive, slc90e66_ratemask(drive));
-
-        if (!speed)
-                return 0;
-
-        (void) slc90e66_tune_chipset(drive, speed);
-        return ide_dma_enable(drive);
-}
-
 static int slc90e66_config_drive_xfer_rate (ide_drive_t *drive)
 {
         drive->init_speed = 0;
 
-        if (ide_use_dma(drive) && slc90e66_config_drive_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/tc86c001.c b/drivers/ide/pci/tc86c001.c
index 0b6d81d6ce48..cee619bb2eaf 100644
--- a/drivers/ide/pci/tc86c001.c
+++ b/drivers/ide/pci/tc86c001.c
@@ -13,18 +13,13 @@
 #include <linux/pci.h>
 #include <linux/ide.h>
 
-static inline u8 tc86c001_ratemask(ide_drive_t *drive)
-{
-        return eighty_ninty_three(drive) ? 2 : 1;
-}
-
 static int tc86c001_tune_chipset(ide_drive_t *drive, u8 speed)
 {
         ide_hwif_t *hwif        = HWIF(drive);
         unsigned long scr_port  = hwif->config_data + (drive->dn ? 0x02 : 0x00);
         u16 mode, scr           = hwif->INW(scr_port);
 
-        speed = ide_rate_filter(tc86c001_ratemask(drive), speed);
+        speed = ide_rate_filter(drive, speed);
 
         switch (speed) {
                 case XFER_UDMA_4:       mode = 0x00c0; break;
@@ -172,20 +167,9 @@ static int tc86c001_busproc(ide_drive_t *drive, int state)
         return 0;
 }
 
-static int config_chipset_for_dma(ide_drive_t *drive)
-{
-        u8 speed = ide_dma_speed(drive, tc86c001_ratemask(drive));
-
-        if (!speed)
-                return 0;
-
-        (void) tc86c001_tune_chipset(drive, speed);
-        return ide_dma_enable(drive);
-}
-
 static int tc86c001_config_drive_xfer_rate(ide_drive_t *drive)
 {
-        if (ide_use_dma(drive) && config_chipset_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         if (ide_use_fast_pio(drive))
diff --git a/drivers/ide/pci/triflex.c b/drivers/ide/pci/triflex.c
index 5e06179c3469..35e8c612638f 100644
--- a/drivers/ide/pci/triflex.c
+++ b/drivers/ide/pci/triflex.c
@@ -48,7 +48,7 @@ static int triflex_tune_chipset(ide_drive_t *drive, u8 xferspeed)
         u16 timing = 0;
         u32 triflex_timings = 0;
         u8 unit = (drive->select.b.unit & 0x01);
-        u8 speed = ide_rate_filter(0, xferspeed);
+        u8 speed = ide_rate_filter(drive, xferspeed);
         
         pci_read_config_dword(dev, channel_offset, &triflex_timings);
         
@@ -100,20 +100,9 @@ static void triflex_tune_drive(ide_drive_t *drive, u8 pio)
         (void) triflex_tune_chipset(drive, (XFER_PIO_0 + use_pio));
 }
 
-static int triflex_config_drive_for_dma(ide_drive_t *drive)
-{
-        int speed = ide_dma_speed(drive, 0); /* No ultra speeds */
-
-        if (!speed)
-                return 0;
-
-        (void) triflex_tune_chipset(drive, speed);
-         return ide_dma_enable(drive);
-}
-
 static int triflex_config_drive_xfer_rate(ide_drive_t *drive)
 {
-        if (ide_use_dma(drive) && triflex_config_drive_for_dma(drive))
+        if (ide_tune_dma(drive))
                 return 0;
 
         triflex_tune_drive(drive, 255);
diff --git a/drivers/ide/ppc/pmac.c b/drivers/ide/ppc/pmac.c
index a49ebe44babd..45fc36f0f219 100644
--- a/drivers/ide/ppc/pmac.c
+++ b/drivers/ide/ppc/pmac.c
@@ -1276,6 +1276,8 @@ pmac_ide_setup_device(pmac_ide_hwif_t *pmif, ide_hwif_t *hwif)
         /* We probe the hwif now */
         probe_hwif_init(hwif);
 
+        ide_proc_register_port(hwif);
+
         return 0;
 }
 
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 118fb3205ca8..67035ba4bf5e 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -702,6 +702,7 @@ out:
 
 int ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t *d)
 {
+        ide_hwif_t *hwif = NULL, *mate = NULL;
         ata_index_t index_list;
         int ret;
 
@@ -710,11 +711,19 @@ int ide_setup_pci_device(struct pci_dev *dev, ide_pci_device_t *d)
                 goto out;
 
         if ((index_list.b.low & 0xf0) != 0xf0)
-                probe_hwif_init_with_fixup(&ide_hwifs[index_list.b.low], d->fixup);
+                hwif = &ide_hwifs[index_list.b.low];
         if ((index_list.b.high & 0xf0) != 0xf0)
-                probe_hwif_init_with_fixup(&ide_hwifs[index_list.b.high], d->fixup);
+                mate = &ide_hwifs[index_list.b.high];
 
-        create_proc_ide_interfaces();
+        if (hwif)
+                probe_hwif_init_with_fixup(hwif, d->fixup);
+        if (mate)
+                probe_hwif_init_with_fixup(mate, d->fixup);
+
+        if (hwif)
+                ide_proc_register_port(hwif);
+        if (mate)
+                ide_proc_register_port(mate);
 out:
         return ret;
 }
@@ -748,13 +757,22 @@ int ide_setup_pci_devices(struct pci_dev *dev1, struct pci_dev *dev2,
                 }
         }
 
-        create_proc_ide_interfaces();
+        for (i = 0; i < 2; i++) {
+                u8 idx[2] = { index_list[i].b.low, index_list[i].b.high };
+                int j;
+
+                for (j = 0; j < 2; j++) {
+                        if ((idx[j] & 0xf0) != 0xf0)
+                                ide_proc_register_port(ide_hwifs + idx[j]);
+                }
+        }
 out:
         return ret;
 }
 
 EXPORT_SYMBOL_GPL(ide_setup_pci_devices);
 
+#ifdef CONFIG_IDEPCI_PCIBUS_ORDER
 /*
  *      Module interfaces
  */
@@ -861,3 +879,4 @@ void __init ide_scan_pcibus (int scan_direction)
                 __pci_register_driver(d, d->driver.owner, d->driver.mod_name);
         }
 }
+#endif
diff --git a/drivers/ieee1394/Kconfig b/drivers/ieee1394/Kconfig
index 61d7809a5a26..8012b3b0ce75 100644
--- a/drivers/ieee1394/Kconfig
+++ b/drivers/ieee1394/Kconfig
@@ -1,4 +1,7 @@
 menu "IEEE 1394 (FireWire) support"
+        depends on PCI || BROKEN
+
+source "drivers/firewire/Kconfig"
 
 config IEEE1394
         tristate "IEEE 1394 (FireWire) support"
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 6a1a0572275e..835937e38529 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -1702,7 +1702,7 @@ static int nodemgr_host_thread(void *__hi)
                         generation = get_hpsb_generation(host);
 
                         /* If we get a reset before we are done waiting, then
-                         * start the the waiting over again */
+                         * start the waiting over again */
                         if (generation != g)
                                 g = generation, i = 0;
                 }
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index 66b36de9fa6f..994decc7bcf2 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -1,4 +1,5 @@
 menu "InfiniBand support"
+        depends on HAS_IOMEM
 
 config INFINIBAND
         depends on PCI || BROKEN
@@ -29,6 +30,11 @@ config INFINIBAND_USER_ACCESS
           libibverbs, libibcm and a hardware driver library from
           <http://www.openib.org>.
 
+config INFINIBAND_USER_MEM
+        bool
+        depends on INFINIBAND_USER_ACCESS != n
+        default y
+
 config INFINIBAND_ADDR_TRANS
         bool
         depends on INFINIBAND && INET
@@ -40,6 +46,8 @@ source "drivers/infiniband/hw/ehca/Kconfig"
 source "drivers/infiniband/hw/amso1100/Kconfig"
 source "drivers/infiniband/hw/cxgb3/Kconfig"
 
+source "drivers/infiniband/hw/mlx4/Kconfig"
+
 source "drivers/infiniband/ulp/ipoib/Kconfig"
 
 source "drivers/infiniband/ulp/srp/Kconfig"
diff --git a/drivers/infiniband/Makefile b/drivers/infiniband/Makefile
index da2066c4f22c..75f325e40b54 100644
--- a/drivers/infiniband/Makefile
+++ b/drivers/infiniband/Makefile
@@ -4,6 +4,7 @@ obj-$(CONFIG_INFINIBAND_IPATH)		+= hw/ipath/
 obj-$(CONFIG_INFINIBAND_EHCA)           += hw/ehca/
 obj-$(CONFIG_INFINIBAND_AMSO1100)       += hw/amso1100/
 obj-$(CONFIG_INFINIBAND_CXGB3)          += hw/cxgb3/
+obj-$(CONFIG_MLX4_INFINIBAND)           += hw/mlx4/
 obj-$(CONFIG_INFINIBAND_IPOIB)          += ulp/ipoib/
 obj-$(CONFIG_INFINIBAND_SRP)            += ulp/srp/
 obj-$(CONFIG_INFINIBAND_ISER)           += ulp/iser/
diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile
index 189e5d4b9b17..cb1ab3ea4998 100644
--- a/drivers/infiniband/core/Makefile
+++ b/drivers/infiniband/core/Makefile
@@ -9,6 +9,7 @@ obj-$(CONFIG_INFINIBAND_USER_ACCESS) +=	ib_uverbs.o ib_ucm.o \
 
 ib_core-y :=                    packer.o ud_header.o verbs.o sysfs.o \
                                 device.o fmr_pool.o cache.o
+ib_core-$(CONFIG_INFINIBAND_USER_MEM) += umem.o
 
 ib_mad-y :=                     mad.o smi.o agent.o mad_rmpp.o
 
@@ -28,5 +29,4 @@ ib_umad-y :=			user_mad.o
 
 ib_ucm-y :=                     ucm.o
 
-ib_uverbs-y :=                  uverbs_main.o uverbs_cmd.o uverbs_mem.o \
-                                uverbs_marshall.o
+ib_uverbs-y :=                  uverbs_main.o uverbs_cmd.o uverbs_marshall.o
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 7fabb425b033..592c90aa3183 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -613,6 +613,8 @@ static void __exit ib_core_cleanup(void)
 {
         ib_cache_cleanup();
         ib_sysfs_cleanup();
+        /* Make sure that any pending umem accounting work is done. */
+        flush_scheduled_work();
 }
 
 module_init(ib_core_init);
diff --git a/drivers/infiniband/core/uverbs_mem.c b/drivers/infiniband/core/umem.c
index c95fe952abd5..f32ca5fbb26b 100644
--- a/drivers/infiniband/core/uverbs_mem.c
+++ b/drivers/infiniband/core/umem.c
@@ -39,13 +39,6 @@
 
 #include "uverbs.h"
 
-struct ib_umem_account_work {
-        struct work_struct work;
-        struct mm_struct  *mm;
-        unsigned long      diff;
-};
-
-
 static void __ib_umem_release(struct ib_device *dev, struct ib_umem *umem, int dirty)
 {
         struct ib_umem_chunk *chunk, *tmp;
@@ -64,35 +57,56 @@ static void __ib_umem_release(struct ib_device *dev, struct ib_umem *umem, int d
         }
 }
 
-int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
-                void *addr, size_t size, int write)
+/**
+ * ib_umem_get - Pin and DMA map userspace memory.
+ * @context: userspace context to pin memory for
+ * @addr: userspace virtual address to start at
+ * @size: length of region to pin
+ * @access: IB_ACCESS_xxx flags for memory being pinned
+ */
+struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr,
+                            size_t size, int access)
 {
+        struct ib_umem *umem;
         struct page **page_list;
         struct ib_umem_chunk *chunk;
         unsigned long locked;
         unsigned long lock_limit;
         unsigned long cur_base;
         unsigned long npages;
-        int ret = 0;
+        int ret;
         int off;
         int i;
 
         if (!can_do_mlock())
-                return -EPERM;
+                return ERR_PTR(-EPERM);
 
-        page_list = (struct page **) __get_free_page(GFP_KERNEL);
-        if (!page_list)
-                return -ENOMEM;
+        umem = kmalloc(sizeof *umem, GFP_KERNEL);
+        if (!umem)
+                return ERR_PTR(-ENOMEM);
+
+        umem->context   = context;
+        umem->length    = size;
+        umem->offset    = addr & ~PAGE_MASK;
+        umem->page_size = PAGE_SIZE;
+        /*
+         * We ask for writable memory if any access flags other than
+         * "remote read" are set.  "Local write" and "remote write"
+         * obviously require write access.  "Remote atomic" can do
+         * things like fetch and add, which will modify memory, and
+         * "MW bind" can change permissions by binding a window.
+         */
+        umem->writable  = !!(access & ~IB_ACCESS_REMOTE_READ);
 
-        mem->user_base = (unsigned long) addr;
-        mem->length    = size;
-        mem->offset    = (unsigned long) addr & ~PAGE_MASK;
-        mem->page_size = PAGE_SIZE;
-        mem->writable  = write;
+        INIT_LIST_HEAD(&umem->chunk_list);
 
-        INIT_LIST_HEAD(&mem->chunk_list);
+        page_list = (struct page **) __get_free_page(GFP_KERNEL);
+        if (!page_list) {
+                kfree(umem);
+                return ERR_PTR(-ENOMEM);
+        }
 
-        npages = PAGE_ALIGN(size + mem->offset) >> PAGE_SHIFT;
+        npages = PAGE_ALIGN(size + umem->offset) >> PAGE_SHIFT;
 
         down_write(&current->mm->mmap_sem);
 
@@ -104,13 +118,13 @@ int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
                 goto out;
         }
 
-        cur_base = (unsigned long) addr & PAGE_MASK;
+        cur_base = addr & PAGE_MASK;
 
         while (npages) {
                 ret = get_user_pages(current, current->mm, cur_base,
                                      min_t(int, npages,
                                            PAGE_SIZE / sizeof (struct page *)),
-                                     1, !write, page_list, NULL);
+                                     1, !umem->writable, page_list, NULL);
 
                 if (ret < 0)
                         goto out;
@@ -136,7 +150,7 @@ int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
                                 chunk->page_list[i].length = PAGE_SIZE;
                         }
 
-                        chunk->nmap = ib_dma_map_sg(dev,
+                        chunk->nmap = ib_dma_map_sg(context->device,
                                                     &chunk->page_list[0],
                                                     chunk->nents,
                                                     DMA_BIDIRECTIONAL);
@@ -151,75 +165,94 @@ int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
 
                         ret -= chunk->nents;
                         off += chunk->nents;
-                        list_add_tail(&chunk->list, &mem->chunk_list);
+                        list_add_tail(&chunk->list, &umem->chunk_list);
                 }
 
                 ret = 0;
         }
 
 out:
-        if (ret < 0)
-                __ib_umem_release(dev, mem, 0);
-        else
+        if (ret < 0) {
+                __ib_umem_release(context->device, umem, 0);
+                kfree(umem);
+        } else
                 current->mm->locked_vm = locked;
 
         up_write(&current->mm->mmap_sem);
         free_page((unsigned long) page_list);
 
-        return ret;
+        return ret < 0 ? ERR_PTR(ret) : umem;
 }
+EXPORT_SYMBOL(ib_umem_get);
 
-void ib_umem_release(struct ib_device *dev, struct ib_umem *umem)
+static void ib_umem_account(struct work_struct *work)
 {
-        __ib_umem_release(dev, umem, 1);
-
-        down_write(&current->mm->mmap_sem);
-        current->mm->locked_vm -=
-                PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT;
-        up_write(&current->mm->mmap_sem);
-}
+        struct ib_umem *umem = container_of(work, struct ib_umem, work);
 
-static void ib_umem_account(struct work_struct *_work)
-{
-        struct ib_umem_account_work *work =
-                container_of(_work, struct ib_umem_account_work, work);
-
-        down_write(&work->mm->mmap_sem);
-        work->mm->locked_vm -= work->diff;
-        up_write(&work->mm->mmap_sem);
-        mmput(work->mm);
-        kfree(work);
+        down_write(&umem->mm->mmap_sem);
+        umem->mm->locked_vm -= umem->diff;
+        up_write(&umem->mm->mmap_sem);
+        mmput(umem->mm);
+        kfree(umem);
 }
 
-void ib_umem_release_on_close(struct ib_device *dev, struct ib_umem *umem)
+/**
+ * ib_umem_release - release memory pinned with ib_umem_get
+ * @umem: umem struct to release
+ */
+void ib_umem_release(struct ib_umem *umem)
 {
-        struct ib_umem_account_work *work;
+        struct ib_ucontext *context = umem->context;
         struct mm_struct *mm;
+        unsigned long diff;
 
-        __ib_umem_release(dev, umem, 1);
+        __ib_umem_release(umem->context->device, umem, 1);
 
         mm = get_task_mm(current);
         if (!mm)
                 return;
 
+        diff = PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT;
+
         /*
          * We may be called with the mm's mmap_sem already held.  This
          * can happen when a userspace munmap() is the call that drops
          * the last reference to our file and calls our release
          * method.  If there are memory regions to destroy, we'll end
-         * up here and not be able to take the mmap_sem.  Therefore we
-         * defer the vm_locked accounting to the system workqueue.
+         * up here and not be able to take the mmap_sem.  In that case
+         * we defer the vm_locked accounting to the system workqueue.
          */
+        if (context->closing && !down_write_trylock(&mm->mmap_sem)) {
+                INIT_WORK(&umem->work, ib_umem_account);
+                umem->mm   = mm;
+                umem->diff = diff;
 
-        work = kmalloc(sizeof *work, GFP_KERNEL);
-        if (!work) {
-                mmput(mm);
+                schedule_work(&umem->work);
                 return;
-        }
+        } else
+                down_write(&mm->mmap_sem);
+
+        current->mm->locked_vm -= diff;
+        up_write(&mm->mmap_sem);
+        mmput(mm);
+        kfree(umem);
+}
+EXPORT_SYMBOL(ib_umem_release);
+
+int ib_umem_page_count(struct ib_umem *umem)
+{
+        struct ib_umem_chunk *chunk;
+        int shift;
+        int i;
+        int n;
+
+        shift = ilog2(umem->page_size);
 
-        INIT_WORK(&work->work, ib_umem_account);
-        work->mm   = mm;
-        work->diff = PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT;
+        n = 0;
+        list_for_each_entry(chunk, &umem->chunk_list, list)
+                for (i = 0; i < chunk->nmap; ++i)
+                        n += sg_dma_len(&chunk->page_list[i]) >> shift;
 
-        schedule_work(&work->work);
+        return n;
 }
+EXPORT_SYMBOL(ib_umem_page_count);
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index 102a59c033ff..c33546f9e961 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -45,6 +45,7 @@
 #include <linux/completion.h>
 
 #include <rdma/ib_verbs.h>
+#include <rdma/ib_umem.h>
 #include <rdma/ib_user_verbs.h>
 
 /*
@@ -163,11 +164,6 @@ void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr);
 void ib_uverbs_event_handler(struct ib_event_handler *handler,
                              struct ib_event *event);
 
-int ib_umem_get(struct ib_device *dev, struct ib_umem *mem,
-                void *addr, size_t size, int write);
-void ib_umem_release(struct ib_device *dev, struct ib_umem *umem);
-void ib_umem_release_on_close(struct ib_device *dev, struct ib_umem *umem);
-
 #define IB_UVERBS_DECLARE_CMD(name)                                     \
         ssize_t ib_uverbs_##name(struct ib_uverbs_file *file,           \
                                  const char __user *buf, int in_len,    \
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index bab66769be14..01d70084aebe 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
- * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems.  All rights reserved.
  * Copyright (c) 2005 PathScale, Inc.  All rights reserved.
  * Copyright (c) 2006 Mellanox Technologies.  All rights reserved.
  *
@@ -295,6 +295,7 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
         INIT_LIST_HEAD(&ucontext->qp_list);
         INIT_LIST_HEAD(&ucontext->srq_list);
         INIT_LIST_HEAD(&ucontext->ah_list);
+        ucontext->closing = 0;
 
         resp.num_comp_vectors = file->device->num_comp_vectors;
 
@@ -573,7 +574,7 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
         struct ib_uverbs_reg_mr      cmd;
         struct ib_uverbs_reg_mr_resp resp;
         struct ib_udata              udata;
-        struct ib_umem_object       *obj;
+        struct ib_uobject           *uobj;
         struct ib_pd                *pd;
         struct ib_mr                *mr;
         int                          ret;
@@ -599,35 +600,21 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
             !(cmd.access_flags & IB_ACCESS_LOCAL_WRITE))
                 return -EINVAL;
 
-        obj = kmalloc(sizeof *obj, GFP_KERNEL);
-        if (!obj)
+        uobj = kmalloc(sizeof *uobj, GFP_KERNEL);
+        if (!uobj)
                 return -ENOMEM;
 
-        init_uobj(&obj->uobject, 0, file->ucontext, &mr_lock_key);
-        down_write(&obj->uobject.mutex);
-
-        /*
-         * We ask for writable memory if any access flags other than
-         * "remote read" are set.  "Local write" and "remote write"
-         * obviously require write access.  "Remote atomic" can do
-         * things like fetch and add, which will modify memory, and
-         * "MW bind" can change permissions by binding a window.
-         */
-        ret = ib_umem_get(file->device->ib_dev, &obj->umem,
-                          (void *) (unsigned long) cmd.start, cmd.length,
-                          !!(cmd.access_flags & ~IB_ACCESS_REMOTE_READ));
-        if (ret)
-                goto err_free;
-
-        obj->umem.virt_base = cmd.hca_va;
+        init_uobj(uobj, 0, file->ucontext, &mr_lock_key);
+        down_write(&uobj->mutex);
 
         pd = idr_read_pd(cmd.pd_handle, file->ucontext);
         if (!pd) {
                 ret = -EINVAL;
-                goto err_release;
+                goto err_free;
         }
 
-        mr = pd->device->reg_user_mr(pd, &obj->umem, cmd.access_flags, &udata);
+        mr = pd->device->reg_user_mr(pd, cmd.start, cmd.length, cmd.hca_va,
+                                     cmd.access_flags, &udata);
         if (IS_ERR(mr)) {
                 ret = PTR_ERR(mr);
                 goto err_put;
@@ -635,19 +622,19 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
 
         mr->device  = pd->device;
         mr->pd      = pd;
-        mr->uobject = &obj->uobject;
+        mr->uobject = uobj;
         atomic_inc(&pd->usecnt);
         atomic_set(&mr->usecnt, 0);
 
-        obj->uobject.object = mr;
-        ret = idr_add_uobj(&ib_uverbs_mr_idr, &obj->uobject);
+        uobj->object = mr;
+        ret = idr_add_uobj(&ib_uverbs_mr_idr, uobj);
         if (ret)
                 goto err_unreg;
 
         memset(&resp, 0, sizeof resp);
         resp.lkey      = mr->lkey;
         resp.rkey      = mr->rkey;
-        resp.mr_handle = obj->uobject.id;
+        resp.mr_handle = uobj->id;
 
         if (copy_to_user((void __user *) (unsigned long) cmd.response,
                          &resp, sizeof resp)) {
@@ -658,17 +645,17 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
         put_pd_read(pd);
 
         mutex_lock(&file->mutex);
-        list_add_tail(&obj->uobject.list, &file->ucontext->mr_list);
+        list_add_tail(&uobj->list, &file->ucontext->mr_list);
         mutex_unlock(&file->mutex);
 
-        obj->uobject.live = 1;
+        uobj->live = 1;
 
-        up_write(&obj->uobject.mutex);
+        up_write(&uobj->mutex);
 
         return in_len;
 
 err_copy:
-        idr_remove_uobj(&ib_uverbs_mr_idr, &obj->uobject);
+        idr_remove_uobj(&ib_uverbs_mr_idr, uobj);
 
 err_unreg:
         ib_dereg_mr(mr);
@@ -676,11 +663,8 @@ err_unreg:
 err_put:
         put_pd_read(pd);
 
-err_release:
-        ib_umem_release(file->device->ib_dev, &obj->umem);
-
 err_free:
-        put_uobj_write(&obj->uobject);
+        put_uobj_write(uobj);
         return ret;
 }
 
@@ -691,7 +675,6 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file,
         struct ib_uverbs_dereg_mr cmd;
         struct ib_mr             *mr;
         struct ib_uobject        *uobj;
-        struct ib_umem_object    *memobj;
         int                       ret = -EINVAL;
 
         if (copy_from_user(&cmd, buf, sizeof cmd))
@@ -701,8 +684,7 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file,
         if (!uobj)
                 return -EINVAL;
 
-        memobj = container_of(uobj, struct ib_umem_object, uobject);
-        mr     = uobj->object;
+        mr = uobj->object;
 
         ret = ib_dereg_mr(mr);
         if (!ret)
@@ -719,8 +701,6 @@ ssize_t ib_uverbs_dereg_mr(struct ib_uverbs_file *file,
         list_del(&uobj->list);
         mutex_unlock(&file->mutex);
 
-        ib_umem_release(file->device->ib_dev, &memobj->umem);
-
         put_uobj(uobj);
 
         return in_len;
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index d44e54799651..14d7ccd89195 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -183,6 +183,8 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
         if (!context)
                 return 0;
 
+        context->closing = 1;
+
         list_for_each_entry_safe(uobj, tmp, &context->ah_list, list) {
                 struct ib_ah *ah = uobj->object;
 
@@ -230,16 +232,10 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
 
         list_for_each_entry_safe(uobj, tmp, &context->mr_list, list) {
                 struct ib_mr *mr = uobj->object;
-                struct ib_device *mrdev = mr->device;
-                struct ib_umem_object *memobj;
 
                 idr_remove_uobj(&ib_uverbs_mr_idr, uobj);
                 ib_dereg_mr(mr);
-
-                memobj = container_of(uobj, struct ib_umem_object, uobject);
-                ib_umem_release_on_close(mrdev, &memobj->umem);
-
-                kfree(memobj);
+                kfree(uobj);
         }
 
         list_for_each_entry_safe(uobj, tmp, &context->pd_list, list) {
@@ -906,7 +902,6 @@ static void __exit ib_uverbs_cleanup(void)
         unregister_filesystem(&uverbs_event_fs);
         class_destroy(uverbs_class);
         unregister_chrdev_region(IB_UVERBS_BASE_DEV, IB_UVERBS_MAX_DEVICES);
-        flush_scheduled_work();
         idr_destroy(&ib_uverbs_pd_idr);
         idr_destroy(&ib_uverbs_mr_idr);
         idr_destroy(&ib_uverbs_mw_idr);
diff --git a/drivers/infiniband/hw/amso1100/c2_provider.c b/drivers/infiniband/hw/amso1100/c2_provider.c
index 109166223c09..997cf1530762 100644
--- a/drivers/infiniband/hw/amso1100/c2_provider.c
+++ b/drivers/infiniband/hw/amso1100/c2_provider.c
@@ -56,6 +56,7 @@
 #include <asm/byteorder.h>
 
 #include <rdma/ib_smi.h>
+#include <rdma/ib_umem.h>
 #include <rdma/ib_user_verbs.h>
 #include "c2.h"
 #include "c2_provider.h"
@@ -396,6 +397,7 @@ static struct ib_mr *c2_reg_phys_mr(struct ib_pd *ib_pd,
         }
 
         mr->pd = to_c2pd(ib_pd);
+        mr->umem = NULL;
         pr_debug("%s - page shift %d, pbl_depth %d, total_len %u, "
                 "*iova_start %llx, first pa %llx, last pa %llx\n",
                 __FUNCTION__, page_shift, pbl_depth, total_len,
@@ -428,8 +430,8 @@ static struct ib_mr *c2_get_dma_mr(struct ib_pd *pd, int acc)
         return c2_reg_phys_mr(pd, &bl, 1, acc, &kva);
 }
 
-static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
-                                    int acc, struct ib_udata *udata)
+static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+                                    u64 virt, int acc, struct ib_udata *udata)
 {
         u64 *pages;
         u64 kva = 0;
@@ -441,15 +443,23 @@ static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
         struct c2_mr *c2mr;
 
         pr_debug("%s:%u\n", __FUNCTION__, __LINE__);
-        shift = ffs(region->page_size) - 1;
 
         c2mr = kmalloc(sizeof(*c2mr), GFP_KERNEL);
         if (!c2mr)
                 return ERR_PTR(-ENOMEM);
         c2mr->pd = c2pd;
 
+        c2mr->umem = ib_umem_get(pd->uobject->context, start, length, acc);
+        if (IS_ERR(c2mr->umem)) {
+                err = PTR_ERR(c2mr->umem);
+                kfree(c2mr);
+                return ERR_PTR(err);
+        }
+
+        shift = ffs(c2mr->umem->page_size) - 1;
+
         n = 0;
-        list_for_each_entry(chunk, &region->chunk_list, list)
+        list_for_each_entry(chunk, &c2mr->umem->chunk_list, list)
                 n += chunk->nents;
 
         pages = kmalloc(n * sizeof(u64), GFP_KERNEL);
@@ -459,35 +469,34 @@ static struct ib_mr *c2_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
         }
 
         i = 0;
-        list_for_each_entry(chunk, &region->chunk_list, list) {
+        list_for_each_entry(chunk, &c2mr->umem->chunk_list, list) {
                 for (j = 0; j < chunk->nmap; ++j) {
                         len = sg_dma_len(&chunk->page_list[j]) >> shift;
                         for (k = 0; k < len; ++k) {
                                 pages[i++] =
                                         sg_dma_address(&chunk->page_list[j]) +
-                                        (region->page_size * k);
+                                        (c2mr->umem->page_size * k);
                         }
                 }
         }
 
-        kva = (u64)region->virt_base;
+        kva = virt;
         err = c2_nsmr_register_phys_kern(to_c2dev(pd->device),
                                          pages,
-                                         region->page_size,
+                                         c2mr->umem->page_size,
                                          i,
-                                         region->length,
-                                         region->offset,
+                                         length,
+                                         c2mr->umem->offset,
                                          &kva,
                                          c2_convert_access(acc),
                                          c2mr);
         kfree(pages);
-        if (err) {
-                kfree(c2mr);
-                return ERR_PTR(err);
-        }
+        if (err)
+                goto err;
         return &c2mr->ibmr;
 
 err:
+        ib_umem_release(c2mr->umem);
         kfree(c2mr);
         return ERR_PTR(err);
 }
@@ -502,8 +511,11 @@ static int c2_dereg_mr(struct ib_mr *ib_mr)
         err = c2_stag_dealloc(to_c2dev(ib_mr->device), ib_mr->lkey);
         if (err)
                 pr_debug("c2_stag_dealloc failed: %d\n", err);
-        else
+        else {
+                if (mr->umem)
+                        ib_umem_release(mr->umem);
                 kfree(mr);
+        }
 
         return err;
 }
diff --git a/drivers/infiniband/hw/amso1100/c2_provider.h b/drivers/infiniband/hw/amso1100/c2_provider.h
index fc906223220f..1076df2ee96a 100644
--- a/drivers/infiniband/hw/amso1100/c2_provider.h
+++ b/drivers/infiniband/hw/amso1100/c2_provider.h
@@ -73,6 +73,7 @@ struct c2_pd {
 struct c2_mr {
         struct ib_mr ibmr;
         struct c2_pd *pd;
+        struct ib_umem *umem;
 };
 
 struct c2_av;
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index a891493fd340..e7c2c3948037 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -47,6 +47,7 @@
 #include <rdma/iw_cm.h>
 #include <rdma/ib_verbs.h>
 #include <rdma/ib_smi.h>
+#include <rdma/ib_umem.h>
 #include <rdma/ib_user_verbs.h>
 
 #include "cxio_hal.h"
@@ -443,6 +444,8 @@ static int iwch_dereg_mr(struct ib_mr *ib_mr)
         remove_handle(rhp, &rhp->mmidr, mmid);
         if (mhp->kva)
                 kfree((void *) (unsigned long) mhp->kva);
+        if (mhp->umem)
+                ib_umem_release(mhp->umem);
         PDBG("%s mmid 0x%x ptr %p\n", __FUNCTION__, mmid, mhp);
         kfree(mhp);
         return 0;
@@ -577,8 +580,8 @@ static int iwch_reregister_phys_mem(struct ib_mr *mr,
 }
 
 
-static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
-                                      int acc, struct ib_udata *udata)
+static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+                                      u64 virt, int acc, struct ib_udata *udata)
 {
         __be64 *pages;
         int shift, n, len;
@@ -591,7 +594,6 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
         struct iwch_reg_user_mr_resp uresp;
 
         PDBG("%s ib_pd %p\n", __FUNCTION__, pd);
-        shift = ffs(region->page_size) - 1;
 
         php = to_iwch_pd(pd);
         rhp = php->rhp;
@@ -599,8 +601,17 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
         if (!mhp)
                 return ERR_PTR(-ENOMEM);
 
+        mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc);
+        if (IS_ERR(mhp->umem)) {
+                err = PTR_ERR(mhp->umem);
+                kfree(mhp);
+                return ERR_PTR(err);
+        }
+
+        shift = ffs(mhp->umem->page_size) - 1;
+
         n = 0;
-        list_for_each_entry(chunk, &region->chunk_list, list)
+        list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
                 n += chunk->nents;
 
         pages = kmalloc(n * sizeof(u64), GFP_KERNEL);
@@ -611,13 +622,13 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
 
         i = n = 0;
 
-        list_for_each_entry(chunk, &region->chunk_list, list)
+        list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
                 for (j = 0; j < chunk->nmap; ++j) {
                         len = sg_dma_len(&chunk->page_list[j]) >> shift;
                         for (k = 0; k < len; ++k) {
                                 pages[i++] = cpu_to_be64(sg_dma_address(
                                         &chunk->page_list[j]) +
-                                        region->page_size * k);
+                                        mhp->umem->page_size * k);
                         }
                 }
 
@@ -625,9 +636,9 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
         mhp->attr.pdid = php->pdid;
         mhp->attr.zbva = 0;
         mhp->attr.perms = iwch_ib_to_tpt_access(acc);
-        mhp->attr.va_fbo = region->virt_base;
+        mhp->attr.va_fbo = virt;
         mhp->attr.page_size = shift - 12;
-        mhp->attr.len = (u32) region->length;
+        mhp->attr.len = (u32) length;
         mhp->attr.pbl_size = i;
         err = iwch_register_mem(rhp, php, mhp, shift, pages);
         kfree(pages);
@@ -650,6 +661,7 @@ static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
         return &mhp->ibmr;
 
 err:
+        ib_umem_release(mhp->umem);
         kfree(mhp);
         return ERR_PTR(err);
 }
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.h b/drivers/infiniband/hw/cxgb3/iwch_provider.h
index 93bcc56756bd..48833f3f3bd0 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.h
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.h
@@ -73,6 +73,7 @@ struct tpt_attributes {
 
 struct iwch_mr {
         struct ib_mr ibmr;
+        struct ib_umem *umem;
         struct iwch_dev *rhp;
         u64 kva;
         struct tpt_attributes attr;
diff --git a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h
index 10fb8fbafa0c..f64d42b08674 100644
--- a/drivers/infiniband/hw/ehca/ehca_classes.h
+++ b/drivers/infiniband/hw/ehca/ehca_classes.h
@@ -176,6 +176,7 @@ struct ehca_mr {
                 struct ib_mr ib_mr;     /* must always be first in ehca_mr */
                 struct ib_fmr ib_fmr;   /* must always be first in ehca_mr */
         } ib;
+        struct ib_umem *umem;
         spinlock_t mrlock;
 
         enum ehca_mr_flag flags;
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
index f284be1c9166..82dda2faf4d0 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -745,6 +745,7 @@ static int comp_pool_callback(struct notifier_block *nfb,
 
         switch (action) {
         case CPU_UP_PREPARE:
+        case CPU_UP_PREPARE_FROZEN:
                 ehca_gen_dbg("CPU: %x (CPU_PREPARE)", cpu);
                 if(!create_comp_task(pool, cpu)) {
                         ehca_gen_err("Can't create comp_task for cpu: %x", cpu);
@@ -752,24 +753,29 @@ static int comp_pool_callback(struct notifier_block *nfb,
                 }
                 break;
         case CPU_UP_CANCELED:
+        case CPU_UP_CANCELED_FROZEN:
                 ehca_gen_dbg("CPU: %x (CPU_CANCELED)", cpu);
                 cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
                 kthread_bind(cct->task, any_online_cpu(cpu_online_map));
                 destroy_comp_task(pool, cpu);
                 break;
         case CPU_ONLINE:
+        case CPU_ONLINE_FROZEN:
                 ehca_gen_dbg("CPU: %x (CPU_ONLINE)", cpu);
                 cct = per_cpu_ptr(pool->cpu_comp_tasks, cpu);
                 kthread_bind(cct->task, cpu);
                 wake_up_process(cct->task);
                 break;
         case CPU_DOWN_PREPARE:
+        case CPU_DOWN_PREPARE_FROZEN:
                 ehca_gen_dbg("CPU: %x (CPU_DOWN_PREPARE)", cpu);
                 break;
         case CPU_DOWN_FAILED:
+        case CPU_DOWN_FAILED_FROZEN:
                 ehca_gen_dbg("CPU: %x (CPU_DOWN_FAILED)", cpu);
                 break;
         case CPU_DEAD:
+        case CPU_DEAD_FROZEN:
                 ehca_gen_dbg("CPU: %x (CPU_DEAD)", cpu);
                 destroy_comp_task(pool, cpu);
                 take_over_work(pool, cpu);
diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h
index e14b029332c8..37e7fe0908cf 100644
--- a/drivers/infiniband/hw/ehca/ehca_iverbs.h
+++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h
@@ -78,8 +78,7 @@ struct ib_mr *ehca_reg_phys_mr(struct ib_pd *pd,
                                int num_phys_buf,
                                int mr_access_flags, u64 *iova_start);
 
-struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd,
-                               struct ib_umem *region,
+struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt,
                                int mr_access_flags, struct ib_udata *udata);
 
 int ehca_rereg_phys_mr(struct ib_mr *mr,
diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c
index d22ab563633f..84c5bb498563 100644
--- a/drivers/infiniband/hw/ehca/ehca_mrmw.c
+++ b/drivers/infiniband/hw/ehca/ehca_mrmw.c
@@ -39,6 +39,8 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <rdma/ib_umem.h>
+
 #include <asm/current.h>
 
 #include "ehca_iverbs.h"
@@ -238,10 +240,8 @@ reg_phys_mr_exit0:
 
 /*----------------------------------------------------------------------*/
 
-struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd,
-                               struct ib_umem *region,
-                               int mr_access_flags,
-                               struct ib_udata *udata)
+struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, u64 virt,
+                               int mr_access_flags, struct ib_udata *udata)
 {
         struct ib_mr *ib_mr;
         struct ehca_mr *e_mr;
@@ -257,11 +257,7 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd,
                 ehca_gen_err("bad pd=%p", pd);
                 return ERR_PTR(-EFAULT);
         }
-        if (!region) {
-                ehca_err(pd->device, "bad input values: region=%p", region);
-                ib_mr = ERR_PTR(-EINVAL);
-                goto reg_user_mr_exit0;
-        }
+
         if (((mr_access_flags & IB_ACCESS_REMOTE_WRITE) &&
              !(mr_access_flags & IB_ACCESS_LOCAL_WRITE)) ||
             ((mr_access_flags & IB_ACCESS_REMOTE_ATOMIC) &&
@@ -275,17 +271,10 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd,
                 ib_mr = ERR_PTR(-EINVAL);
                 goto reg_user_mr_exit0;
         }
-        if (region->page_size != PAGE_SIZE) {
-                ehca_err(pd->device, "page size not supported, "
-                         "region->page_size=%x", region->page_size);
-                ib_mr = ERR_PTR(-EINVAL);
-                goto reg_user_mr_exit0;
-        }
 
-        if ((region->length == 0) ||
-            ((region->virt_base + region->length) < region->virt_base)) {
+        if (length == 0 || virt + length < virt) {
                 ehca_err(pd->device, "bad input values: length=%lx "
-                         "virt_base=%lx", region->length, region->virt_base);
+                         "virt_base=%lx", length, virt);
                 ib_mr = ERR_PTR(-EINVAL);
                 goto reg_user_mr_exit0;
         }
@@ -297,40 +286,55 @@ struct ib_mr *ehca_reg_user_mr(struct ib_pd *pd,
                 goto reg_user_mr_exit0;
         }
 
+        e_mr->umem = ib_umem_get(pd->uobject->context, start, length,
+                                 mr_access_flags);
+        if (IS_ERR(e_mr->umem)) {
+                ib_mr = (void *) e_mr->umem;
+                goto reg_user_mr_exit1;
+        }
+
+        if (e_mr->umem->page_size != PAGE_SIZE) {
+                ehca_err(pd->device, "page size not supported, "
+                         "e_mr->umem->page_size=%x", e_mr->umem->page_size);
+                ib_mr = ERR_PTR(-EINVAL);
+                goto reg_user_mr_exit2;
+        }
+
         /* determine number of MR pages */
-        num_pages_mr = (((region->virt_base % PAGE_SIZE) + region->length +
-                         PAGE_SIZE - 1) / PAGE_SIZE);
-        num_pages_4k = (((region->virt_base % EHCA_PAGESIZE) + region->length +
-                         EHCA_PAGESIZE - 1) / EHCA_PAGESIZE);
+        num_pages_mr = (((virt % PAGE_SIZE) + length + PAGE_SIZE - 1) /
+                        PAGE_SIZE);
+        num_pages_4k = (((virt % EHCA_PAGESIZE) + length + EHCA_PAGESIZE - 1) /
+                        EHCA_PAGESIZE);
 
         /* register MR on HCA */
         pginfo.type       = EHCA_MR_PGI_USER;
         pginfo.num_pages  = num_pages_mr;
         pginfo.num_4k     = num_pages_4k;
-        pginfo.region     = region;
-        pginfo.next_4k    = region->offset / EHCA_PAGESIZE;
+        pginfo.region     = e_mr->umem;
+        pginfo.next_4k    = e_mr->umem->offset / EHCA_PAGESIZE;
         pginfo.next_chunk = list_prepare_entry(pginfo.next_chunk,
-                                               (&region->chunk_list),
+                                               (&e_mr->umem->chunk_list),
                                                list);
 
-        ret = ehca_reg_mr(shca, e_mr, (u64*)region->virt_base,
-                          region->length, mr_access_flags, e_pd, &pginfo,
-                          &e_mr->ib.ib_mr.lkey, &e_mr->ib.ib_mr.rkey);
+        ret = ehca_reg_mr(shca, e_mr, (u64*) virt, length, mr_access_flags, e_pd,
+                          &pginfo, &e_mr->ib.ib_mr.lkey, &e_mr->ib.ib_mr.rkey);
         if (ret) {
                 ib_mr = ERR_PTR(ret);
-                goto reg_user_mr_exit1;
+                goto reg_user_mr_exit2;
         }
 
         /* successful registration of all pages */
         return &e_mr->ib.ib_mr;
 
+reg_user_mr_exit2:
+        ib_umem_release(e_mr->umem);
 reg_user_mr_exit1:
         ehca_mr_delete(e_mr);
 reg_user_mr_exit0:
         if (IS_ERR(ib_mr))
-                ehca_err(pd->device, "rc=%lx pd=%p region=%p mr_access_flags=%x"
+                ehca_err(pd->device, "rc=%lx pd=%p mr_access_flags=%x"
                          " udata=%p",
-                         PTR_ERR(ib_mr), pd, region, mr_access_flags, udata);
+                         PTR_ERR(ib_mr), pd, mr_access_flags, udata);
         return ib_mr;
 } /* end ehca_reg_user_mr() */
 
@@ -596,6 +600,9 @@ int ehca_dereg_mr(struct ib_mr *mr)
                 goto dereg_mr_exit0;
         }
 
+        if (e_mr->umem)
+                ib_umem_release(e_mr->umem);
+
         /* successful deregistration */
         ehca_mr_delete(e_mr);
 
diff --git a/drivers/infiniband/hw/ipath/ipath_mr.c b/drivers/infiniband/hw/ipath/ipath_mr.c
index 31e70732e369..bdeef8d4f279 100644
--- a/drivers/infiniband/hw/ipath/ipath_mr.c
+++ b/drivers/infiniband/hw/ipath/ipath_mr.c
@@ -31,6 +31,7 @@
  * SOFTWARE.
  */
 
+#include <rdma/ib_umem.h>
 #include <rdma/ib_pack.h>
 #include <rdma/ib_smi.h>
 
@@ -147,6 +148,7 @@ struct ib_mr *ipath_reg_phys_mr(struct ib_pd *pd,
         mr->mr.offset = 0;
         mr->mr.access_flags = acc;
         mr->mr.max_segs = num_phys_buf;
+        mr->umem = NULL;
 
         m = 0;
         n = 0;
@@ -170,46 +172,56 @@ bail:
 /**
  * ipath_reg_user_mr - register a userspace memory region
  * @pd: protection domain for this memory region
- * @region: the user memory region
+ * @start: starting userspace address
+ * @length: length of region to register
+ * @virt_addr: virtual address to use (from HCA's point of view)
  * @mr_access_flags: access flags for this memory region
  * @udata: unused by the InfiniPath driver
  *
  * Returns the memory region on success, otherwise returns an errno.
  */
-struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
-                                int mr_access_flags, struct ib_udata *udata)
+struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+                                u64 virt_addr, int mr_access_flags,
+                                struct ib_udata *udata)
 {
         struct ipath_mr *mr;
+        struct ib_umem *umem;
         struct ib_umem_chunk *chunk;
         int n, m, i;
         struct ib_mr *ret;
 
-        if (region->length == 0) {
+        if (length == 0) {
                 ret = ERR_PTR(-EINVAL);
                 goto bail;
         }
 
+        umem = ib_umem_get(pd->uobject->context, start, length, mr_access_flags);
+        if (IS_ERR(umem))
+                return (void *) umem;
+
         n = 0;
-        list_for_each_entry(chunk, &region->chunk_list, list)
+        list_for_each_entry(chunk, &umem->chunk_list, list)
                 n += chunk->nents;
 
         mr = alloc_mr(n, &to_idev(pd->device)->lk_table);
         if (!mr) {
                 ret = ERR_PTR(-ENOMEM);
+                ib_umem_release(umem);
                 goto bail;
         }
 
         mr->mr.pd = pd;
-        mr->mr.user_base = region->user_base;
-        mr->mr.iova = region->virt_base;
-        mr->mr.length = region->length;
-        mr->mr.offset = region->offset;
+        mr->mr.user_base = start;
+        mr->mr.iova = virt_addr;
+        mr->mr.length = length;
+        mr->mr.offset = umem->offset;
         mr->mr.access_flags = mr_access_flags;
         mr->mr.max_segs = n;
+        mr->umem = umem;
 
         m = 0;
         n = 0;
-        list_for_each_entry(chunk, &region->chunk_list, list) {
+        list_for_each_entry(chunk, &umem->chunk_list, list) {
                 for (i = 0; i < chunk->nents; i++) {
                         void *vaddr;
 
@@ -219,7 +231,7 @@ struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
                                 goto bail;
                         }
                         mr->mr.map[m]->segs[n].vaddr = vaddr;
-                        mr->mr.map[m]->segs[n].length = region->page_size;
+                        mr->mr.map[m]->segs[n].length = umem->page_size;
                         n++;
                         if (n == IPATH_SEGSZ) {
                                 m++;
@@ -253,6 +265,10 @@ int ipath_dereg_mr(struct ib_mr *ibmr)
                 i--;
                 kfree(mr->mr.map[i]);
         }
+
+        if (mr->umem)
+                ib_umem_release(mr->umem);
+
         kfree(mr);
         return 0;
 }
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.h b/drivers/infiniband/hw/ipath/ipath_verbs.h
index 7064fc222727..088b837ebea8 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.h
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.h
@@ -251,6 +251,7 @@ struct ipath_sge {
 /* Memory region */
 struct ipath_mr {
         struct ib_mr ibmr;
+        struct ib_umem *umem;
         struct ipath_mregion mr;        /* must be last */
 };
 
@@ -751,8 +752,8 @@ struct ib_mr *ipath_reg_phys_mr(struct ib_pd *pd,
                                 struct ib_phys_buf *buffer_list,
                                 int num_phys_buf, int acc, u64 *iova_start);
 
-struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
-                                int mr_access_flags,
+struct ib_mr *ipath_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+                                u64 virt_addr, int mr_access_flags,
                                 struct ib_udata *udata);
 
 int ipath_dereg_mr(struct ib_mr *ibmr);
diff --git a/drivers/infiniband/hw/mlx4/Kconfig b/drivers/infiniband/hw/mlx4/Kconfig
new file mode 100644
index 000000000000..b8912cdb9663
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/Kconfig
@@ -0,0 +1,9 @@
+config MLX4_INFINIBAND
+        tristate "Mellanox ConnectX HCA support"
+        depends on INFINIBAND
+        select MLX4_CORE
+        ---help---
+          This driver provides low-level InfiniBand support for
+          Mellanox ConnectX PCI Express host channel adapters (HCAs).
+          This is required to use InfiniBand protocols such as
+          IP-over-IB or SRP with these devices.
diff --git a/drivers/infiniband/hw/mlx4/Makefile b/drivers/infiniband/hw/mlx4/Makefile
new file mode 100644
index 000000000000..70f09c7826da
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_MLX4_INFINIBAND)   += mlx4_ib.o
+
+mlx4_ib-y :=    ah.o cq.o doorbell.o mad.o main.o mr.o qp.o srq.o
diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c
new file mode 100644
index 000000000000..c75ac9463e20
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "mlx4_ib.h"
+
+struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
+{
+        struct mlx4_dev *dev = to_mdev(pd->device)->dev;
+        struct mlx4_ib_ah *ah;
+
+        ah = kmalloc(sizeof *ah, GFP_ATOMIC);
+        if (!ah)
+                return ERR_PTR(-ENOMEM);
+
+        memset(&ah->av, 0, sizeof ah->av);
+
+        ah->av.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
+        ah->av.g_slid  = ah_attr->src_path_bits;
+        ah->av.dlid    = cpu_to_be16(ah_attr->dlid);
+        if (ah_attr->static_rate) {
+                ah->av.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET;
+                while (ah->av.stat_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&
+                       !(1 << ah->av.stat_rate & dev->caps.stat_rate_support))
+                        --ah->av.stat_rate;
+        }
+        ah->av.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
+        if (ah_attr->ah_flags & IB_AH_GRH) {
+                ah->av.g_slid   |= 0x80;
+                ah->av.gid_index = ah_attr->grh.sgid_index;
+                ah->av.hop_limit = ah_attr->grh.hop_limit;
+                ah->av.sl_tclass_flowlabel |=
+                        cpu_to_be32((ah_attr->grh.traffic_class << 20) |
+                                    ah_attr->grh.flow_label);
+                memcpy(ah->av.dgid, ah_attr->grh.dgid.raw, 16);
+        }
+
+        return &ah->ibah;
+}
+
+int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr)
+{
+        struct mlx4_ib_ah *ah = to_mah(ibah);
+
+        memset(ah_attr, 0, sizeof *ah_attr);
+        ah_attr->dlid          = be16_to_cpu(ah->av.dlid);
+        ah_attr->sl            = be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 28;
+        ah_attr->port_num      = be32_to_cpu(ah->av.port_pd) >> 24;
+        if (ah->av.stat_rate)
+                ah_attr->static_rate = ah->av.stat_rate - MLX4_STAT_RATE_OFFSET;
+        ah_attr->src_path_bits = ah->av.g_slid & 0x7F;
+
+        if (mlx4_ib_ah_grh_present(ah)) {
+                ah_attr->ah_flags = IB_AH_GRH;
+
+                ah_attr->grh.traffic_class =
+                        be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 20;
+                ah_attr->grh.flow_label =
+                        be32_to_cpu(ah->av.sl_tclass_flowlabel) & 0xfffff;
+                ah_attr->grh.hop_limit  = ah->av.hop_limit;
+                ah_attr->grh.sgid_index = ah->av.gid_index;
+                memcpy(ah_attr->grh.dgid.raw, ah->av.dgid, 16);
+        }
+
+        return 0;
+}
+
+int mlx4_ib_destroy_ah(struct ib_ah *ah)
+{
+        kfree(to_mah(ah));
+        return 0;
+}
diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
new file mode 100644
index 000000000000..b2a290c6703a
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -0,0 +1,525 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/mlx4/cq.h>
+#include <linux/mlx4/qp.h>
+
+#include "mlx4_ib.h"
+#include "user.h"
+
+static void mlx4_ib_cq_comp(struct mlx4_cq *cq)
+{
+        struct ib_cq *ibcq = &to_mibcq(cq)->ibcq;
+        ibcq->comp_handler(ibcq, ibcq->cq_context);
+}
+
+static void mlx4_ib_cq_event(struct mlx4_cq *cq, enum mlx4_event type)
+{
+        struct ib_event event;
+        struct ib_cq *ibcq;
+
+        if (type != MLX4_EVENT_TYPE_CQ_ERROR) {
+                printk(KERN_WARNING "mlx4_ib: Unexpected event type %d "
+                       "on CQ %06x\n", type, cq->cqn);
+                return;
+        }
+
+        ibcq = &to_mibcq(cq)->ibcq;
+        if (ibcq->event_handler) {
+                event.device     = ibcq->device;
+                event.event      = IB_EVENT_CQ_ERR;
+                event.element.cq = ibcq;
+                ibcq->event_handler(&event, ibcq->cq_context);
+        }
+}
+
+static void *get_cqe_from_buf(struct mlx4_ib_cq_buf *buf, int n)
+{
+        int offset = n * sizeof (struct mlx4_cqe);
+
+        if (buf->buf.nbufs == 1)
+                return buf->buf.u.direct.buf + offset;
+        else
+                return buf->buf.u.page_list[offset >> PAGE_SHIFT].buf +
+                        (offset & (PAGE_SIZE - 1));
+}
+
+static void *get_cqe(struct mlx4_ib_cq *cq, int n)
+{
+        return get_cqe_from_buf(&cq->buf, n);
+}
+
+static void *get_sw_cqe(struct mlx4_ib_cq *cq, int n)
+{
+        struct mlx4_cqe *cqe = get_cqe(cq, n & cq->ibcq.cqe);
+
+        return (!!(cqe->owner_sr_opcode & MLX4_CQE_OWNER_MASK) ^
+                !!(n & (cq->ibcq.cqe + 1))) ? NULL : cqe;
+}
+
+static struct mlx4_cqe *next_cqe_sw(struct mlx4_ib_cq *cq)
+{
+        return get_sw_cqe(cq, cq->mcq.cons_index);
+}
+
+struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
+                                struct ib_ucontext *context,
+                                struct ib_udata *udata)
+{
+        struct mlx4_ib_dev *dev = to_mdev(ibdev);
+        struct mlx4_ib_cq *cq;
+        struct mlx4_uar *uar;
+        int buf_size;
+        int err;
+
+        if (entries < 1 || entries > dev->dev->caps.max_cqes)
+                return ERR_PTR(-EINVAL);
+
+        cq = kmalloc(sizeof *cq, GFP_KERNEL);
+        if (!cq)
+                return ERR_PTR(-ENOMEM);
+
+        entries      = roundup_pow_of_two(entries + 1);
+        cq->ibcq.cqe = entries - 1;
+        buf_size     = entries * sizeof (struct mlx4_cqe);
+        spin_lock_init(&cq->lock);
+
+        if (context) {
+                struct mlx4_ib_create_cq ucmd;
+
+                if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
+                        err = -EFAULT;
+                        goto err_cq;
+                }
+
+                cq->umem = ib_umem_get(context, ucmd.buf_addr, buf_size,
+                                       IB_ACCESS_LOCAL_WRITE);
+                if (IS_ERR(cq->umem)) {
+                        err = PTR_ERR(cq->umem);
+                        goto err_cq;
+                }
+
+                err = mlx4_mtt_init(dev->dev, ib_umem_page_count(cq->umem),
+                                    ilog2(cq->umem->page_size), &cq->buf.mtt);
+                if (err)
+                        goto err_buf;
+
+                err = mlx4_ib_umem_write_mtt(dev, &cq->buf.mtt, cq->umem);
+                if (err)
+                        goto err_mtt;
+
+                err = mlx4_ib_db_map_user(to_mucontext(context), ucmd.db_addr,
+                                          &cq->db);
+                if (err)
+                        goto err_mtt;
+
+                uar = &to_mucontext(context)->uar;
+        } else {
+                err = mlx4_ib_db_alloc(dev, &cq->db, 1);
+                if (err)
+                        goto err_cq;
+
+                cq->mcq.set_ci_db  = cq->db.db;
+                cq->mcq.arm_db     = cq->db.db + 1;
+                *cq->mcq.set_ci_db = 0;
+                *cq->mcq.arm_db    = 0;
+
+                if (mlx4_buf_alloc(dev->dev, buf_size, PAGE_SIZE * 2, &cq->buf.buf)) {
+                        err = -ENOMEM;
+                        goto err_db;
+                }
+
+                err = mlx4_mtt_init(dev->dev, cq->buf.buf.npages, cq->buf.buf.page_shift,
+                                    &cq->buf.mtt);
+                if (err)
+                        goto err_buf;
+
+                err = mlx4_buf_write_mtt(dev->dev, &cq->buf.mtt, &cq->buf.buf);
+                if (err)
+                        goto err_mtt;
+
+                uar = &dev->priv_uar;
+        }
+
+        err = mlx4_cq_alloc(dev->dev, entries, &cq->buf.mtt, uar,
+                            cq->db.dma, &cq->mcq);
+        if (err)
+                goto err_dbmap;
+
+        cq->mcq.comp  = mlx4_ib_cq_comp;
+        cq->mcq.event = mlx4_ib_cq_event;
+
+        if (context)
+                if (ib_copy_to_udata(udata, &cq->mcq.cqn, sizeof (__u32))) {
+                        err = -EFAULT;
+                        goto err_dbmap;
+                }
+
+        return &cq->ibcq;
+
+err_dbmap:
+        if (context)
+                mlx4_ib_db_unmap_user(to_mucontext(context), &cq->db);
+
+err_mtt:
+        mlx4_mtt_cleanup(dev->dev, &cq->buf.mtt);
+
+err_buf:
+        if (context)
+                ib_umem_release(cq->umem);
+        else
+                mlx4_buf_free(dev->dev, entries * sizeof (struct mlx4_cqe),
+                              &cq->buf.buf);
+
+err_db:
+        if (!context)
+                mlx4_ib_db_free(dev, &cq->db);
+
+err_cq:
+        kfree(cq);
+
+        return ERR_PTR(err);
+}
+
+int mlx4_ib_destroy_cq(struct ib_cq *cq)
+{
+        struct mlx4_ib_dev *dev = to_mdev(cq->device);
+        struct mlx4_ib_cq *mcq = to_mcq(cq);
+
+        mlx4_cq_free(dev->dev, &mcq->mcq);
+        mlx4_mtt_cleanup(dev->dev, &mcq->buf.mtt);
+
+        if (cq->uobject) {
+                mlx4_ib_db_unmap_user(to_mucontext(cq->uobject->context), &mcq->db);
+                ib_umem_release(mcq->umem);
+        } else {
+                mlx4_buf_free(dev->dev, (cq->cqe + 1) * sizeof (struct mlx4_cqe),
+                              &mcq->buf.buf);
+                mlx4_ib_db_free(dev, &mcq->db);
+        }
+
+        kfree(mcq);
+
+        return 0;
+}
+
+static void dump_cqe(void *cqe)
+{
+        __be32 *buf = cqe;
+
+        printk(KERN_DEBUG "CQE contents %08x %08x %08x %08x %08x %08x %08x %08x\n",
+               be32_to_cpu(buf[0]), be32_to_cpu(buf[1]), be32_to_cpu(buf[2]),
+               be32_to_cpu(buf[3]), be32_to_cpu(buf[4]), be32_to_cpu(buf[5]),
+               be32_to_cpu(buf[6]), be32_to_cpu(buf[7]));
+}
+
+static void mlx4_ib_handle_error_cqe(struct mlx4_err_cqe *cqe,
+                                     struct ib_wc *wc)
+{
+        if (cqe->syndrome == MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR) {
+                printk(KERN_DEBUG "local QP operation err "
+                       "(QPN %06x, WQE index %x, vendor syndrome %02x, "
+                       "opcode = %02x)\n",
+                       be32_to_cpu(cqe->my_qpn), be16_to_cpu(cqe->wqe_index),
+                       cqe->vendor_err_syndrome,
+                       cqe->owner_sr_opcode & ~MLX4_CQE_OWNER_MASK);
+                dump_cqe(cqe);
+        }
+
+        switch (cqe->syndrome) {
+        case MLX4_CQE_SYNDROME_LOCAL_LENGTH_ERR:
+                wc->status = IB_WC_LOC_LEN_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_LOCAL_QP_OP_ERR:
+                wc->status = IB_WC_LOC_QP_OP_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_LOCAL_PROT_ERR:
+                wc->status = IB_WC_LOC_PROT_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_WR_FLUSH_ERR:
+                wc->status = IB_WC_WR_FLUSH_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_MW_BIND_ERR:
+                wc->status = IB_WC_MW_BIND_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_BAD_RESP_ERR:
+                wc->status = IB_WC_BAD_RESP_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_LOCAL_ACCESS_ERR:
+                wc->status = IB_WC_LOC_ACCESS_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_REMOTE_INVAL_REQ_ERR:
+                wc->status = IB_WC_REM_INV_REQ_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_REMOTE_ACCESS_ERR:
+                wc->status = IB_WC_REM_ACCESS_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_REMOTE_OP_ERR:
+                wc->status = IB_WC_REM_OP_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_TRANSPORT_RETRY_EXC_ERR:
+                wc->status = IB_WC_RETRY_EXC_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_RNR_RETRY_EXC_ERR:
+                wc->status = IB_WC_RNR_RETRY_EXC_ERR;
+                break;
+        case MLX4_CQE_SYNDROME_REMOTE_ABORTED_ERR:
+                wc->status = IB_WC_REM_ABORT_ERR;
+                break;
+        default:
+                wc->status = IB_WC_GENERAL_ERR;
+                break;
+        }
+
+        wc->vendor_err = cqe->vendor_err_syndrome;
+}
+
+static int mlx4_ib_poll_one(struct mlx4_ib_cq *cq,
+                            struct mlx4_ib_qp **cur_qp,
+                            struct ib_wc *wc)
+{
+        struct mlx4_cqe *cqe;
+        struct mlx4_qp *mqp;
+        struct mlx4_ib_wq *wq;
+        struct mlx4_ib_srq *srq;
+        int is_send;
+        int is_error;
+        u16 wqe_ctr;
+
+        cqe = next_cqe_sw(cq);
+        if (!cqe)
+                return -EAGAIN;
+
+        ++cq->mcq.cons_index;
+
+        /*
+         * Make sure we read CQ entry contents after we've checked the
+         * ownership bit.
+         */
+        rmb();
+
+        is_send  = cqe->owner_sr_opcode & MLX4_CQE_IS_SEND_MASK;
+        is_error = (cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) ==
+                MLX4_CQE_OPCODE_ERROR;
+
+        if (!*cur_qp ||
+            (be32_to_cpu(cqe->my_qpn) & 0xffffff) != (*cur_qp)->mqp.qpn) {
+                /*
+                 * We do not have to take the QP table lock here,
+                 * because CQs will be locked while QPs are removed
+                 * from the table.
+                 */
+                mqp = __mlx4_qp_lookup(to_mdev(cq->ibcq.device)->dev,
+                                       be32_to_cpu(cqe->my_qpn));
+                if (unlikely(!mqp)) {
+                        printk(KERN_WARNING "CQ %06x with entry for unknown QPN %06x\n",
+                               cq->mcq.cqn, be32_to_cpu(cqe->my_qpn) & 0xffffff);
+                        return -EINVAL;
+                }
+
+                *cur_qp = to_mibqp(mqp);
+        }
+
+        wc->qp = &(*cur_qp)->ibqp;
+
+        if (is_send) {
+                wq = &(*cur_qp)->sq;
+                wqe_ctr = be16_to_cpu(cqe->wqe_index);
+                wq->tail += wqe_ctr - (u16) wq->tail;
+                wc->wr_id = wq->wrid[wq->tail & (wq->max - 1)];
+                ++wq->tail;
+        } else if ((*cur_qp)->ibqp.srq) {
+                srq = to_msrq((*cur_qp)->ibqp.srq);
+                wqe_ctr = be16_to_cpu(cqe->wqe_index);
+                wc->wr_id = srq->wrid[wqe_ctr];
+                mlx4_ib_free_srq_wqe(srq, wqe_ctr);
+        } else {
+                wq        = &(*cur_qp)->rq;
+                wc->wr_id = wq->wrid[wq->tail & (wq->max - 1)];
+                ++wq->tail;
+        }
+
+        if (unlikely(is_error)) {
+                mlx4_ib_handle_error_cqe((struct mlx4_err_cqe *) cqe, wc);
+                return 0;
+        }
+
+        wc->status = IB_WC_SUCCESS;
+
+        if (is_send) {
+                wc->wc_flags = 0;
+                switch (cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) {
+                case MLX4_OPCODE_RDMA_WRITE_IMM:
+                        wc->wc_flags |= IB_WC_WITH_IMM;
+                case MLX4_OPCODE_RDMA_WRITE:
+                        wc->opcode    = IB_WC_RDMA_WRITE;
+                        break;
+                case MLX4_OPCODE_SEND_IMM:
+                        wc->wc_flags |= IB_WC_WITH_IMM;
+                case MLX4_OPCODE_SEND:
+                        wc->opcode    = IB_WC_SEND;
+                        break;
+                case MLX4_OPCODE_RDMA_READ:
+                        wc->opcode    = IB_WC_SEND;
+                        wc->byte_len  = be32_to_cpu(cqe->byte_cnt);
+                        break;
+                case MLX4_OPCODE_ATOMIC_CS:
+                        wc->opcode    = IB_WC_COMP_SWAP;
+                        wc->byte_len  = 8;
+                        break;
+                case MLX4_OPCODE_ATOMIC_FA:
+                        wc->opcode    = IB_WC_FETCH_ADD;
+                        wc->byte_len  = 8;
+                        break;
+                case MLX4_OPCODE_BIND_MW:
+                        wc->opcode    = IB_WC_BIND_MW;
+                        break;
+                }
+        } else {
+                wc->byte_len = be32_to_cpu(cqe->byte_cnt);
+
+                switch (cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) {
+                case MLX4_RECV_OPCODE_RDMA_WRITE_IMM:
+                        wc->opcode   = IB_WC_RECV_RDMA_WITH_IMM;
+                        wc->wc_flags = IB_WC_WITH_IMM;
+                        wc->imm_data = cqe->immed_rss_invalid;
+                        break;
+                case MLX4_RECV_OPCODE_SEND:
+                        wc->opcode   = IB_WC_RECV;
+                        wc->wc_flags = 0;
+                        break;
+                case MLX4_RECV_OPCODE_SEND_IMM:
+                        wc->opcode   = IB_WC_RECV;
+                        wc->wc_flags = IB_WC_WITH_IMM;
+                        wc->imm_data = cqe->immed_rss_invalid;
+                        break;
+                }
+
+                wc->slid           = be16_to_cpu(cqe->rlid);
+                wc->sl             = cqe->sl >> 4;
+                wc->src_qp         = be32_to_cpu(cqe->g_mlpath_rqpn) & 0xffffff;
+                wc->dlid_path_bits = (be32_to_cpu(cqe->g_mlpath_rqpn) >> 24) & 0x7f;
+                wc->wc_flags      |= be32_to_cpu(cqe->g_mlpath_rqpn) & 0x80000000 ?
+                        IB_WC_GRH : 0;
+                wc->pkey_index     = be32_to_cpu(cqe->immed_rss_invalid) >> 16;
+        }
+
+        return 0;
+}
+
+int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
+{
+        struct mlx4_ib_cq *cq = to_mcq(ibcq);
+        struct mlx4_ib_qp *cur_qp = NULL;
+        unsigned long flags;
+        int npolled;
+        int err = 0;
+
+        spin_lock_irqsave(&cq->lock, flags);
+
+        for (npolled = 0; npolled < num_entries; ++npolled) {
+                err = mlx4_ib_poll_one(cq, &cur_qp, wc + npolled);
+                if (err)
+                        break;
+        }
+
+        if (npolled)
+                mlx4_cq_set_ci(&cq->mcq);
+
+        spin_unlock_irqrestore(&cq->lock, flags);
+
+        if (err == 0 || err == -EAGAIN)
+                return npolled;
+        else
+                return err;
+}
+
+int mlx4_ib_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
+{
+        mlx4_cq_arm(&to_mcq(ibcq)->mcq,
+                    (flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ?
+                    MLX4_CQ_DB_REQ_NOT_SOL : MLX4_CQ_DB_REQ_NOT,
+                    to_mdev(ibcq->device)->uar_map,
+                    MLX4_GET_DOORBELL_LOCK(&to_mdev(ibcq->device)->uar_lock));
+
+        return 0;
+}
+
+void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq)
+{
+        u32 prod_index;
+        int nfreed = 0;
+        struct mlx4_cqe *cqe;
+
+        /*
+         * First we need to find the current producer index, so we
+         * know where to start cleaning from.  It doesn't matter if HW
+         * adds new entries after this loop -- the QP we're worried
+         * about is already in RESET, so the new entries won't come
+         * from our QP and therefore don't need to be checked.
+         */
+        for (prod_index = cq->mcq.cons_index; get_sw_cqe(cq, prod_index); ++prod_index)
+                if (prod_index == cq->mcq.cons_index + cq->ibcq.cqe)
+                        break;
+
+        /*
+         * Now sweep backwards through the CQ, removing CQ entries
+         * that match our QP by copying older entries on top of them.
+         */
+        while ((int) --prod_index - (int) cq->mcq.cons_index >= 0) {
+                cqe = get_cqe(cq, prod_index & cq->ibcq.cqe);
+                if ((be32_to_cpu(cqe->my_qpn) & 0xffffff) == qpn) {
+                        if (srq && !(cqe->owner_sr_opcode & MLX4_CQE_IS_SEND_MASK))
+                                mlx4_ib_free_srq_wqe(srq, be16_to_cpu(cqe->wqe_index));
+                        ++nfreed;
+                } else if (nfreed)
+                        memcpy(get_cqe(cq, (prod_index + nfreed) & cq->ibcq.cqe),
+                               cqe, sizeof *cqe);
+        }
+
+        if (nfreed) {
+                cq->mcq.cons_index += nfreed;
+                /*
+                 * Make sure update of buffer contents is done before
+                 * updating consumer index.
+                 */
+                wmb();
+                mlx4_cq_set_ci(&cq->mcq);
+        }
+}
+
+void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq)
+{
+        spin_lock_irq(&cq->lock);
+        __mlx4_ib_cq_clean(cq, qpn, srq);
+        spin_unlock_irq(&cq->lock);
+}
diff --git a/drivers/infiniband/hw/mlx4/doorbell.c b/drivers/infiniband/hw/mlx4/doorbell.c
new file mode 100644
index 000000000000..1c36087aef14
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/doorbell.c
@@ -0,0 +1,216 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/slab.h>
+
+#include "mlx4_ib.h"
+
+struct mlx4_ib_db_pgdir {
+        struct list_head        list;
+        DECLARE_BITMAP(order0, MLX4_IB_DB_PER_PAGE);
+        DECLARE_BITMAP(order1, MLX4_IB_DB_PER_PAGE / 2);
+        unsigned long          *bits[2];
+        __be32                 *db_page;
+        dma_addr_t              db_dma;
+};
+
+static struct mlx4_ib_db_pgdir *mlx4_ib_alloc_db_pgdir(struct mlx4_ib_dev *dev)
+{
+        struct mlx4_ib_db_pgdir *pgdir;
+
+        pgdir = kzalloc(sizeof *pgdir, GFP_KERNEL);
+        if (!pgdir)
+                return NULL;
+
+        bitmap_fill(pgdir->order1, MLX4_IB_DB_PER_PAGE / 2);
+        pgdir->bits[0] = pgdir->order0;
+        pgdir->bits[1] = pgdir->order1;
+        pgdir->db_page = dma_alloc_coherent(dev->ib_dev.dma_device,
+                                            PAGE_SIZE, &pgdir->db_dma,
+                                            GFP_KERNEL);
+        if (!pgdir->db_page) {
+                kfree(pgdir);
+                return NULL;
+        }
+
+        return pgdir;
+}
+
+static int mlx4_ib_alloc_db_from_pgdir(struct mlx4_ib_db_pgdir *pgdir,
+                                       struct mlx4_ib_db *db, int order)
+{
+        int o;
+        int i;
+
+        for (o = order; o <= 1; ++o) {
+                i = find_first_bit(pgdir->bits[o], MLX4_IB_DB_PER_PAGE >> o);
+                if (i < MLX4_IB_DB_PER_PAGE >> o)
+                        goto found;
+        }
+
+        return -ENOMEM;
+
+found:
+        clear_bit(i, pgdir->bits[o]);
+
+        i <<= o;
+
+        if (o > order)
+                set_bit(i ^ 1, pgdir->bits[order]);
+
+        db->u.pgdir = pgdir;
+        db->index   = i;
+        db->db      = pgdir->db_page + db->index;
+        db->dma     = pgdir->db_dma  + db->index * 4;
+        db->order   = order;
+
+        return 0;
+}
+
+int mlx4_ib_db_alloc(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db, int order)
+{
+        struct mlx4_ib_db_pgdir *pgdir;
+        int ret = 0;
+
+        mutex_lock(&dev->pgdir_mutex);
+
+        list_for_each_entry(pgdir, &dev->pgdir_list, list)
+                if (!mlx4_ib_alloc_db_from_pgdir(pgdir, db, order))
+                        goto out;
+
+        pgdir = mlx4_ib_alloc_db_pgdir(dev);
+        if (!pgdir) {
+                ret = -ENOMEM;
+                goto out;
+        }
+
+        list_add(&pgdir->list, &dev->pgdir_list);
+
+        /* This should never fail -- we just allocated an empty page: */
+        WARN_ON(mlx4_ib_alloc_db_from_pgdir(pgdir, db, order));
+
+out:
+        mutex_unlock(&dev->pgdir_mutex);
+
+        return ret;
+}
+
+void mlx4_ib_db_free(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db)
+{
+        int o;
+        int i;
+
+        mutex_lock(&dev->pgdir_mutex);
+
+        o = db->order;
+        i = db->index;
+
+        if (db->order == 0 && test_bit(i ^ 1, db->u.pgdir->order0)) {
+                clear_bit(i ^ 1, db->u.pgdir->order0);
+                ++o;
+        }
+
+        i >>= o;
+        set_bit(i, db->u.pgdir->bits[o]);
+
+        if (bitmap_full(db->u.pgdir->order1, MLX4_IB_DB_PER_PAGE / 2)) {
+                dma_free_coherent(dev->ib_dev.dma_device, PAGE_SIZE,
+                                  db->u.pgdir->db_page, db->u.pgdir->db_dma);
+                list_del(&db->u.pgdir->list);
+                kfree(db->u.pgdir);
+        }
+
+        mutex_unlock(&dev->pgdir_mutex);
+}
+
+struct mlx4_ib_user_db_page {
+        struct list_head        list;
+        struct ib_umem         *umem;
+        unsigned long           user_virt;
+        int                     refcnt;
+};
+
+int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
+                        struct mlx4_ib_db *db)
+{
+        struct mlx4_ib_user_db_page *page;
+        struct ib_umem_chunk *chunk;
+        int err = 0;
+
+        mutex_lock(&context->db_page_mutex);
+
+        list_for_each_entry(page, &context->db_page_list, list)
+                if (page->user_virt == (virt & PAGE_MASK))
+                        goto found;
+
+        page = kmalloc(sizeof *page, GFP_KERNEL);
+        if (!page) {
+                err = -ENOMEM;
+                goto out;
+        }
+
+        page->user_virt = (virt & PAGE_MASK);
+        page->refcnt    = 0;
+        page->umem      = ib_umem_get(&context->ibucontext, virt & PAGE_MASK,
+                                      PAGE_SIZE, 0);
+        if (IS_ERR(page->umem)) {
+                err = PTR_ERR(page->umem);
+                kfree(page);
+                goto out;
+        }
+
+        list_add(&page->list, &context->db_page_list);
+
+found:
+        chunk = list_entry(page->umem->chunk_list.next, struct ib_umem_chunk, list);
+        db->dma         = sg_dma_address(chunk->page_list) + (virt & ~PAGE_MASK);
+        db->u.user_page = page;
+        ++page->refcnt;
+
+out:
+        mutex_unlock(&context->db_page_mutex);
+
+        return err;
+}
+
+void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_ib_db *db)
+{
+        mutex_lock(&context->db_page_mutex);
+
+        if (!--db->u.user_page->refcnt) {
+                list_del(&db->u.user_page->list);
+                ib_umem_release(db->u.user_page->umem);
+                kfree(db->u.user_page);
+        }
+
+        mutex_unlock(&context->db_page_mutex);
+}
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
new file mode 100644
index 000000000000..333091787c5f
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -0,0 +1,339 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <rdma/ib_mad.h>
+#include <rdma/ib_smi.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4_ib.h"
+
+enum {
+        MLX4_IB_VENDOR_CLASS1 = 0x9,
+        MLX4_IB_VENDOR_CLASS2 = 0xa
+};
+
+int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
+                 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
+                 void *in_mad, void *response_mad)
+{
+        struct mlx4_cmd_mailbox *inmailbox, *outmailbox;
+        void *inbox;
+        int err;
+        u32 in_modifier = port;
+        u8 op_modifier = 0;
+
+        inmailbox = mlx4_alloc_cmd_mailbox(dev->dev);
+        if (IS_ERR(inmailbox))
+                return PTR_ERR(inmailbox);
+        inbox = inmailbox->buf;
+
+        outmailbox = mlx4_alloc_cmd_mailbox(dev->dev);
+        if (IS_ERR(outmailbox)) {
+                mlx4_free_cmd_mailbox(dev->dev, inmailbox);
+                return PTR_ERR(outmailbox);
+        }
+
+        memcpy(inbox, in_mad, 256);
+
+        /*
+         * Key check traps can't be generated unless we have in_wc to
+         * tell us where to send the trap.
+         */
+        if (ignore_mkey || !in_wc)
+                op_modifier |= 0x1;
+        if (ignore_bkey || !in_wc)
+                op_modifier |= 0x2;
+
+        if (in_wc) {
+                struct {
+                        __be32          my_qpn;
+                        u32             reserved1;
+                        __be32          rqpn;
+                        u8              sl;
+                        u8              g_path;
+                        u16             reserved2[2];
+                        __be16          pkey;
+                        u32             reserved3[11];
+                        u8              grh[40];
+                } *ext_info;
+
+                memset(inbox + 256, 0, 256);
+                ext_info = inbox + 256;
+
+                ext_info->my_qpn = cpu_to_be32(in_wc->qp->qp_num);
+                ext_info->rqpn   = cpu_to_be32(in_wc->src_qp);
+                ext_info->sl     = in_wc->sl << 4;
+                ext_info->g_path = in_wc->dlid_path_bits |
+                        (in_wc->wc_flags & IB_WC_GRH ? 0x80 : 0);
+                ext_info->pkey   = cpu_to_be16(in_wc->pkey_index);
+
+                if (in_grh)
+                        memcpy(ext_info->grh, in_grh, 40);
+
+                op_modifier |= 0x4;
+
+                in_modifier |= in_wc->slid << 16;
+        }
+
+        err = mlx4_cmd_box(dev->dev, inmailbox->dma, outmailbox->dma,
+                           in_modifier, op_modifier,
+                           MLX4_CMD_MAD_IFC, MLX4_CMD_TIME_CLASS_C);
+
+        if (!err);
+                memcpy(response_mad, outmailbox->buf, 256);
+
+        mlx4_free_cmd_mailbox(dev->dev, inmailbox);
+        mlx4_free_cmd_mailbox(dev->dev, outmailbox);
+
+        return err;
+}
+
+static void update_sm_ah(struct mlx4_ib_dev *dev, u8 port_num, u16 lid, u8 sl)
+{
+        struct ib_ah *new_ah;
+        struct ib_ah_attr ah_attr;
+
+        if (!dev->send_agent[port_num - 1][0])
+                return;
+
+        memset(&ah_attr, 0, sizeof ah_attr);
+        ah_attr.dlid     = lid;
+        ah_attr.sl       = sl;
+        ah_attr.port_num = port_num;
+
+        new_ah = ib_create_ah(dev->send_agent[port_num - 1][0]->qp->pd,
+                              &ah_attr);
+        if (IS_ERR(new_ah))
+                return;
+
+        spin_lock(&dev->sm_lock);
+        if (dev->sm_ah[port_num - 1])
+                ib_destroy_ah(dev->sm_ah[port_num - 1]);
+        dev->sm_ah[port_num - 1] = new_ah;
+        spin_unlock(&dev->sm_lock);
+}
+
+/*
+ * Snoop SM MADs for port info and P_Key table sets, so we can
+ * synthesize LID change and P_Key change events.
+ */
+static void smp_snoop(struct ib_device *ibdev, u8 port_num, struct ib_mad *mad)
+{
+        struct ib_event event;
+
+        if ((mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED ||
+             mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) &&
+            mad->mad_hdr.method == IB_MGMT_METHOD_SET) {
+                if (mad->mad_hdr.attr_id == IB_SMP_ATTR_PORT_INFO) {
+                        struct ib_port_info *pinfo =
+                                (struct ib_port_info *) ((struct ib_smp *) mad)->data;
+
+                        update_sm_ah(to_mdev(ibdev), port_num,
+                                     be16_to_cpu(pinfo->sm_lid),
+                                     pinfo->neighbormtu_mastersmsl & 0xf);
+
+                        event.device           = ibdev;
+                        event.element.port_num = port_num;
+
+                        if(pinfo->clientrereg_resv_subnetto & 0x80)
+                                event.event    = IB_EVENT_CLIENT_REREGISTER;
+                        else
+                                event.event    = IB_EVENT_LID_CHANGE;
+
+                        ib_dispatch_event(&event);
+                }
+
+                if (mad->mad_hdr.attr_id == IB_SMP_ATTR_PKEY_TABLE) {
+                        event.device           = ibdev;
+                        event.event            = IB_EVENT_PKEY_CHANGE;
+                        event.element.port_num = port_num;
+                        ib_dispatch_event(&event);
+                }
+        }
+}
+
+static void node_desc_override(struct ib_device *dev,
+                               struct ib_mad *mad)
+{
+        if ((mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED ||
+             mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) &&
+            mad->mad_hdr.method == IB_MGMT_METHOD_GET_RESP &&
+            mad->mad_hdr.attr_id == IB_SMP_ATTR_NODE_DESC) {
+                spin_lock(&to_mdev(dev)->sm_lock);
+                memcpy(((struct ib_smp *) mad)->data, dev->node_desc, 64);
+                spin_unlock(&to_mdev(dev)->sm_lock);
+        }
+}
+
+static void forward_trap(struct mlx4_ib_dev *dev, u8 port_num, struct ib_mad *mad)
+{
+        int qpn = mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED;
+        struct ib_mad_send_buf *send_buf;
+        struct ib_mad_agent *agent = dev->send_agent[port_num - 1][qpn];
+        int ret;
+
+        if (agent) {
+                send_buf = ib_create_send_mad(agent, qpn, 0, 0, IB_MGMT_MAD_HDR,
+                                              IB_MGMT_MAD_DATA, GFP_ATOMIC);
+                /*
+                 * We rely here on the fact that MLX QPs don't use the
+                 * address handle after the send is posted (this is
+                 * wrong following the IB spec strictly, but we know
+                 * it's OK for our devices).
+                 */
+                spin_lock(&dev->sm_lock);
+                memcpy(send_buf->mad, mad, sizeof *mad);
+                if ((send_buf->ah = dev->sm_ah[port_num - 1]))
+                        ret = ib_post_send_mad(send_buf, NULL);
+                else
+                        ret = -EINVAL;
+                spin_unlock(&dev->sm_lock);
+
+                if (ret)
+                        ib_free_send_mad(send_buf);
+        }
+}
+
+int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
+                        struct ib_wc *in_wc, struct ib_grh *in_grh,
+                        struct ib_mad *in_mad, struct ib_mad *out_mad)
+{
+        u16 slid;
+        int err;
+
+        slid = in_wc ? in_wc->slid : be16_to_cpu(IB_LID_PERMISSIVE);
+
+        if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP && slid == 0) {
+                forward_trap(to_mdev(ibdev), port_num, in_mad);
+                return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
+        }
+
+        if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_LID_ROUTED ||
+            in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) {
+                if (in_mad->mad_hdr.method   != IB_MGMT_METHOD_GET &&
+                    in_mad->mad_hdr.method   != IB_MGMT_METHOD_SET &&
+                    in_mad->mad_hdr.method   != IB_MGMT_METHOD_TRAP_REPRESS)
+                        return IB_MAD_RESULT_SUCCESS;
+
+                /*
+                 * Don't process SMInfo queries or vendor-specific
+                 * MADs -- the SMA can't handle them.
+                 */
+                if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO ||
+                    ((in_mad->mad_hdr.attr_id & IB_SMP_ATTR_VENDOR_MASK) ==
+                     IB_SMP_ATTR_VENDOR_MASK))
+                        return IB_MAD_RESULT_SUCCESS;
+        } else if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT ||
+                   in_mad->mad_hdr.mgmt_class == MLX4_IB_VENDOR_CLASS1   ||
+                   in_mad->mad_hdr.mgmt_class == MLX4_IB_VENDOR_CLASS2) {
+                if (in_mad->mad_hdr.method  != IB_MGMT_METHOD_GET &&
+                    in_mad->mad_hdr.method  != IB_MGMT_METHOD_SET)
+                        return IB_MAD_RESULT_SUCCESS;
+        } else
+                return IB_MAD_RESULT_SUCCESS;
+
+        err = mlx4_MAD_IFC(to_mdev(ibdev),
+                           mad_flags & IB_MAD_IGNORE_MKEY,
+                           mad_flags & IB_MAD_IGNORE_BKEY,
+                           port_num, in_wc, in_grh, in_mad, out_mad);
+        if (err)
+                return IB_MAD_RESULT_FAILURE;
+
+        if (!out_mad->mad_hdr.status) {
+                smp_snoop(ibdev, port_num, in_mad);
+                node_desc_override(ibdev, out_mad);
+        }
+
+        /* set return bit in status of directed route responses */
+        if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE)
+                out_mad->mad_hdr.status |= cpu_to_be16(1 << 15);
+
+        if (in_mad->mad_hdr.method == IB_MGMT_METHOD_TRAP_REPRESS)
+                /* no response for trap repress */
+                return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_CONSUMED;
+
+        return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
+}
+
+static void send_handler(struct ib_mad_agent *agent,
+                         struct ib_mad_send_wc *mad_send_wc)
+{
+        ib_free_send_mad(mad_send_wc->send_buf);
+}
+
+int mlx4_ib_mad_init(struct mlx4_ib_dev *dev)
+{
+        struct ib_mad_agent *agent;
+        int p, q;
+        int ret;
+
+        for (p = 0; p < dev->dev->caps.num_ports; ++p)
+                for (q = 0; q <= 1; ++q) {
+                        agent = ib_register_mad_agent(&dev->ib_dev, p + 1,
+                                                      q ? IB_QPT_GSI : IB_QPT_SMI,
+                                                      NULL, 0, send_handler,
+                                                      NULL, NULL);
+                        if (IS_ERR(agent)) {
+                                ret = PTR_ERR(agent);
+                                goto err;
+                        }
+                        dev->send_agent[p][q] = agent;
+                }
+
+        return 0;
+
+err:
+        for (p = 0; p < dev->dev->caps.num_ports; ++p)
+                for (q = 0; q <= 1; ++q)
+                        if (dev->send_agent[p][q])
+                                ib_unregister_mad_agent(dev->send_agent[p][q]);
+
+        return ret;
+}
+
+void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev)
+{
+        struct ib_mad_agent *agent;
+        int p, q;
+
+        for (p = 0; p < dev->dev->caps.num_ports; ++p) {
+                for (q = 0; q <= 1; ++q) {
+                        agent = dev->send_agent[p][q];
+                        dev->send_agent[p][q] = NULL;
+                        ib_unregister_mad_agent(agent);
+                }
+
+                if (dev->sm_ah[p])
+                        ib_destroy_ah(dev->sm_ah[p]);
+        }
+}
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
new file mode 100644
index 000000000000..688ecb4c39f3
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -0,0 +1,651 @@
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <rdma/ib_smi.h>
+#include <rdma/ib_user_verbs.h>
+
+#include <linux/mlx4/driver.h>
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4_ib.h"
+#include "user.h"
+
+#define DRV_NAME        "mlx4_ib"
+#define DRV_VERSION     "0.01"
+#define DRV_RELDATE     "May 1, 2006"
+
+MODULE_AUTHOR("Roland Dreier");
+MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_VERSION(DRV_VERSION);
+
+static const char mlx4_ib_version[] __devinitdata =
+        DRV_NAME ": Mellanox ConnectX InfiniBand driver v"
+        DRV_VERSION " (" DRV_RELDATE ")\n";
+
+static void init_query_mad(struct ib_smp *mad)
+{
+        mad->base_version  = 1;
+        mad->mgmt_class    = IB_MGMT_CLASS_SUBN_LID_ROUTED;
+        mad->class_version = 1;
+        mad->method        = IB_MGMT_METHOD_GET;
+}
+
+static int mlx4_ib_query_device(struct ib_device *ibdev,
+                                struct ib_device_attr *props)
+{
+        struct mlx4_ib_dev *dev = to_mdev(ibdev);
+        struct ib_smp *in_mad  = NULL;
+        struct ib_smp *out_mad = NULL;
+        int err = -ENOMEM;
+
+        in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
+        out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+        if (!in_mad || !out_mad)
+                goto out;
+
+        init_query_mad(in_mad);
+        in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
+
+        err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad);
+        if (err)
+                goto out;
+
+        memset(props, 0, sizeof *props);
+
+        props->fw_ver = dev->dev->caps.fw_ver;
+        props->device_cap_flags    = IB_DEVICE_CHANGE_PHY_PORT |
+                IB_DEVICE_PORT_ACTIVE_EVENT             |
+                IB_DEVICE_SYS_IMAGE_GUID                |
+                IB_DEVICE_RC_RNR_NAK_GEN;
+        if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR)
+                props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR;
+        if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR)
+                props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR;
+        if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM)
+                props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG;
+        if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT)
+                props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE;
+
+        props->vendor_id           = be32_to_cpup((__be32 *) (out_mad->data + 36)) &
+                0xffffff;
+        props->vendor_part_id      = be16_to_cpup((__be16 *) (out_mad->data + 30));
+        props->hw_ver              = be32_to_cpup((__be32 *) (out_mad->data + 32));
+        memcpy(&props->sys_image_guid, out_mad->data +  4, 8);
+
+        props->max_mr_size         = ~0ull;
+        props->page_size_cap       = dev->dev->caps.page_size_cap;
+        props->max_qp              = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps;
+        props->max_qp_wr           = dev->dev->caps.max_wqes;
+        props->max_sge             = min(dev->dev->caps.max_sq_sg,
+                                         dev->dev->caps.max_rq_sg);
+        props->max_cq              = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs;
+        props->max_cqe             = dev->dev->caps.max_cqes;
+        props->max_mr              = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws;
+        props->max_pd              = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
+        props->max_qp_rd_atom      = dev->dev->caps.max_qp_dest_rdma;
+        props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
+        props->max_res_rd_atom     = props->max_qp_rd_atom * props->max_qp;
+        props->max_srq             = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs;
+        props->max_srq_wr          = dev->dev->caps.max_srq_wqes;
+        props->max_srq_sge         = dev->dev->caps.max_srq_sge;
+        props->local_ca_ack_delay  = dev->dev->caps.local_ca_ack_delay;
+        props->atomic_cap          = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ?
+                IB_ATOMIC_HCA : IB_ATOMIC_NONE;
+        props->max_pkeys           = dev->dev->caps.pkey_table_len;
+        props->max_mcast_grp       = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms;
+        props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
+        props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
+                                           props->max_mcast_grp;
+        props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1;
+
+out:
+        kfree(in_mad);
+        kfree(out_mad);
+
+        return err;
+}
+
+static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
+                              struct ib_port_attr *props)
+{
+        struct ib_smp *in_mad  = NULL;
+        struct ib_smp *out_mad = NULL;
+        int err = -ENOMEM;
+
+        in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
+        out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+        if (!in_mad || !out_mad)
+                goto out;
+
+        memset(props, 0, sizeof *props);
+
+        init_query_mad(in_mad);
+        in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
+        in_mad->attr_mod = cpu_to_be32(port);
+
+        err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
+        if (err)
+                goto out;
+
+        props->lid              = be16_to_cpup((__be16 *) (out_mad->data + 16));
+        props->lmc              = out_mad->data[34] & 0x7;
+        props->sm_lid           = be16_to_cpup((__be16 *) (out_mad->data + 18));
+        props->sm_sl            = out_mad->data[36] & 0xf;
+        props->state            = out_mad->data[32] & 0xf;
+        props->phys_state       = out_mad->data[33] >> 4;
+        props->port_cap_flags   = be32_to_cpup((__be32 *) (out_mad->data + 20));
+        props->gid_tbl_len      = to_mdev(ibdev)->dev->caps.gid_table_len;
+        props->max_msg_sz       = 0x80000000;
+        props->pkey_tbl_len     = to_mdev(ibdev)->dev->caps.pkey_table_len;
+        props->bad_pkey_cntr    = be16_to_cpup((__be16 *) (out_mad->data + 46));
+        props->qkey_viol_cntr   = be16_to_cpup((__be16 *) (out_mad->data + 48));
+        props->active_width     = out_mad->data[31] & 0xf;
+        props->active_speed     = out_mad->data[35] >> 4;
+        props->max_mtu          = out_mad->data[41] & 0xf;
+        props->active_mtu       = out_mad->data[36] >> 4;
+        props->subnet_timeout   = out_mad->data[51] & 0x1f;
+        props->max_vl_num       = out_mad->data[37] >> 4;
+        props->init_type_reply  = out_mad->data[41] >> 4;
+
+out:
+        kfree(in_mad);
+        kfree(out_mad);
+
+        return err;
+}
+
+static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
+                             union ib_gid *gid)
+{
+        struct ib_smp *in_mad  = NULL;
+        struct ib_smp *out_mad = NULL;
+        int err = -ENOMEM;
+
+        in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
+        out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+        if (!in_mad || !out_mad)
+                goto out;
+
+        init_query_mad(in_mad);
+        in_mad->attr_id  = IB_SMP_ATTR_PORT_INFO;
+        in_mad->attr_mod = cpu_to_be32(port);
+
+        err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
+        if (err)
+                goto out;
+
+        memcpy(gid->raw, out_mad->data + 8, 8);
+
+        init_query_mad(in_mad);
+        in_mad->attr_id  = IB_SMP_ATTR_GUID_INFO;
+        in_mad->attr_mod = cpu_to_be32(index / 8);
+
+        err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
+        if (err)
+                goto out;
+
+        memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8);
+
+out:
+        kfree(in_mad);
+        kfree(out_mad);
+        return err;
+}
+
+static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
+                              u16 *pkey)
+{
+        struct ib_smp *in_mad  = NULL;
+        struct ib_smp *out_mad = NULL;
+        int err = -ENOMEM;
+
+        in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
+        out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+        if (!in_mad || !out_mad)
+                goto out;
+
+        init_query_mad(in_mad);
+        in_mad->attr_id  = IB_SMP_ATTR_PKEY_TABLE;
+        in_mad->attr_mod = cpu_to_be32(index / 32);
+
+        err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad);
+        if (err)
+                goto out;
+
+        *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]);
+
+out:
+        kfree(in_mad);
+        kfree(out_mad);
+        return err;
+}
+
+static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
+                                 struct ib_device_modify *props)
+{
+        if (mask & ~IB_DEVICE_MODIFY_NODE_DESC)
+                return -EOPNOTSUPP;
+
+        if (mask & IB_DEVICE_MODIFY_NODE_DESC) {
+                spin_lock(&to_mdev(ibdev)->sm_lock);
+                memcpy(ibdev->node_desc, props->node_desc, 64);
+                spin_unlock(&to_mdev(ibdev)->sm_lock);
+        }
+
+        return 0;
+}
+
+static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
+                         u32 cap_mask)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        int err;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev->dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+
+        memset(mailbox->buf, 0, 256);
+        *(u8 *) mailbox->buf         = !!reset_qkey_viols << 6;
+        ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
+
+        err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT,
+                       MLX4_CMD_TIME_CLASS_B);
+
+        mlx4_free_cmd_mailbox(dev->dev, mailbox);
+        return err;
+}
+
+static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask,
+                               struct ib_port_modify *props)
+{
+        struct ib_port_attr attr;
+        u32 cap_mask;
+        int err;
+
+        mutex_lock(&to_mdev(ibdev)->cap_mask_mutex);
+
+        err = mlx4_ib_query_port(ibdev, port, &attr);
+        if (err)
+                goto out;
+
+        cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) &
+                ~props->clr_port_cap_mask;
+
+        err = mlx4_SET_PORT(to_mdev(ibdev), port,
+                            !!(mask & IB_PORT_RESET_QKEY_CNTR),
+                            cap_mask);
+
+out:
+        mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex);
+        return err;
+}
+
+static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev,
+                                                  struct ib_udata *udata)
+{
+        struct mlx4_ib_dev *dev = to_mdev(ibdev);
+        struct mlx4_ib_ucontext *context;
+        struct mlx4_ib_alloc_ucontext_resp resp;
+        int err;
+
+        resp.qp_tab_size      = dev->dev->caps.num_qps;
+        resp.bf_reg_size      = dev->dev->caps.bf_reg_size;
+        resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page;
+
+        context = kmalloc(sizeof *context, GFP_KERNEL);
+        if (!context)
+                return ERR_PTR(-ENOMEM);
+
+        err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar);
+        if (err) {
+                kfree(context);
+                return ERR_PTR(err);
+        }
+
+        INIT_LIST_HEAD(&context->db_page_list);
+        mutex_init(&context->db_page_mutex);
+
+        err = ib_copy_to_udata(udata, &resp, sizeof resp);
+        if (err) {
+                mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar);
+                kfree(context);
+                return ERR_PTR(-EFAULT);
+        }
+
+        return &context->ibucontext;
+}
+
+static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext)
+{
+        struct mlx4_ib_ucontext *context = to_mucontext(ibcontext);
+
+        mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar);
+        kfree(context);
+
+        return 0;
+}
+
+static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
+{
+        struct mlx4_ib_dev *dev = to_mdev(context->device);
+
+        if (vma->vm_end - vma->vm_start != PAGE_SIZE)
+                return -EINVAL;
+
+        if (vma->vm_pgoff == 0) {
+                vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+                if (io_remap_pfn_range(vma, vma->vm_start,
+                                       to_mucontext(context)->uar.pfn,
+                                       PAGE_SIZE, vma->vm_page_prot))
+                        return -EAGAIN;
+        } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) {
+                /* FIXME want pgprot_writecombine() for BlueFlame pages */
+                vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+                if (io_remap_pfn_range(vma, vma->vm_start,
+                                       to_mucontext(context)->uar.pfn +
+                                       dev->dev->caps.num_uars,
+                                       PAGE_SIZE, vma->vm_page_prot))
+                        return -EAGAIN;
+        } else
+                return -EINVAL;
+
+        return 0;
+}
+
+static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev,
+                                      struct ib_ucontext *context,
+                                      struct ib_udata *udata)
+{
+        struct mlx4_ib_pd *pd;
+        int err;
+
+        pd = kmalloc(sizeof *pd, GFP_KERNEL);
+        if (!pd)
+                return ERR_PTR(-ENOMEM);
+
+        err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn);
+        if (err) {
+                kfree(pd);
+                return ERR_PTR(err);
+        }
+
+        if (context)
+                if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) {
+                        mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn);
+                        kfree(pd);
+                        return ERR_PTR(-EFAULT);
+                }
+
+        return &pd->ibpd;
+}
+
+static int mlx4_ib_dealloc_pd(struct ib_pd *pd)
+{
+        mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn);
+        kfree(pd);
+
+        return 0;
+}
+
+static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
+{
+        return mlx4_multicast_attach(to_mdev(ibqp->device)->dev,
+                                     &to_mqp(ibqp)->mqp, gid->raw);
+}
+
+static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
+{
+        return mlx4_multicast_detach(to_mdev(ibqp->device)->dev,
+                                     &to_mqp(ibqp)->mqp, gid->raw);
+}
+
+static int init_node_data(struct mlx4_ib_dev *dev)
+{
+        struct ib_smp *in_mad  = NULL;
+        struct ib_smp *out_mad = NULL;
+        int err = -ENOMEM;
+
+        in_mad  = kzalloc(sizeof *in_mad, GFP_KERNEL);
+        out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL);
+        if (!in_mad || !out_mad)
+                goto out;
+
+        init_query_mad(in_mad);
+        in_mad->attr_id = IB_SMP_ATTR_NODE_DESC;
+
+        err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
+        if (err)
+                goto out;
+
+        memcpy(dev->ib_dev.node_desc, out_mad->data, 64);
+
+        in_mad->attr_id = IB_SMP_ATTR_NODE_INFO;
+
+        err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad);
+        if (err)
+                goto out;
+
+        memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8);
+
+out:
+        kfree(in_mad);
+        kfree(out_mad);
+        return err;
+}
+
+static void *mlx4_ib_add(struct mlx4_dev *dev)
+{
+        struct mlx4_ib_dev *ibdev;
+
+        ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev);
+        if (!ibdev) {
+                dev_err(&dev->pdev->dev, "Device struct alloc failed\n");
+                return NULL;
+        }
+
+        if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
+                goto err_dealloc;
+
+        if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
+                goto err_pd;
+
+        ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
+        if (!ibdev->uar_map)
+                goto err_uar;
+
+        INIT_LIST_HEAD(&ibdev->pgdir_list);
+        mutex_init(&ibdev->pgdir_mutex);
+
+        ibdev->dev = dev;
+
+        strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX);
+        ibdev->ib_dev.owner             = THIS_MODULE;
+        ibdev->ib_dev.node_type         = RDMA_NODE_IB_CA;
+        ibdev->ib_dev.phys_port_cnt     = dev->caps.num_ports;
+        ibdev->ib_dev.num_comp_vectors  = 1;
+        ibdev->ib_dev.dma_device        = &dev->pdev->dev;
+
+        ibdev->ib_dev.uverbs_abi_ver    = MLX4_IB_UVERBS_ABI_VERSION;
+        ibdev->ib_dev.uverbs_cmd_mask   =
+                (1ull << IB_USER_VERBS_CMD_GET_CONTEXT)         |
+                (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE)        |
+                (1ull << IB_USER_VERBS_CMD_QUERY_PORT)          |
+                (1ull << IB_USER_VERBS_CMD_ALLOC_PD)            |
+                (1ull << IB_USER_VERBS_CMD_DEALLOC_PD)          |
+                (1ull << IB_USER_VERBS_CMD_REG_MR)              |
+                (1ull << IB_USER_VERBS_CMD_DEREG_MR)            |
+                (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
+                (1ull << IB_USER_VERBS_CMD_CREATE_CQ)           |
+                (1ull << IB_USER_VERBS_CMD_DESTROY_CQ)          |
+                (1ull << IB_USER_VERBS_CMD_CREATE_QP)           |
+                (1ull << IB_USER_VERBS_CMD_MODIFY_QP)           |
+                (1ull << IB_USER_VERBS_CMD_DESTROY_QP)          |
+                (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST)        |
+                (1ull << IB_USER_VERBS_CMD_DETACH_MCAST)        |
+                (1ull << IB_USER_VERBS_CMD_CREATE_SRQ)          |
+                (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ)          |
+                (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
+
+        ibdev->ib_dev.query_device      = mlx4_ib_query_device;
+        ibdev->ib_dev.query_port        = mlx4_ib_query_port;
+        ibdev->ib_dev.query_gid         = mlx4_ib_query_gid;
+        ibdev->ib_dev.query_pkey        = mlx4_ib_query_pkey;
+        ibdev->ib_dev.modify_device     = mlx4_ib_modify_device;
+        ibdev->ib_dev.modify_port       = mlx4_ib_modify_port;
+        ibdev->ib_dev.alloc_ucontext    = mlx4_ib_alloc_ucontext;
+        ibdev->ib_dev.dealloc_ucontext  = mlx4_ib_dealloc_ucontext;
+        ibdev->ib_dev.mmap              = mlx4_ib_mmap;
+        ibdev->ib_dev.alloc_pd          = mlx4_ib_alloc_pd;
+        ibdev->ib_dev.dealloc_pd        = mlx4_ib_dealloc_pd;
+        ibdev->ib_dev.create_ah         = mlx4_ib_create_ah;
+        ibdev->ib_dev.query_ah          = mlx4_ib_query_ah;
+        ibdev->ib_dev.destroy_ah        = mlx4_ib_destroy_ah;
+        ibdev->ib_dev.create_srq        = mlx4_ib_create_srq;
+        ibdev->ib_dev.modify_srq        = mlx4_ib_modify_srq;
+        ibdev->ib_dev.destroy_srq       = mlx4_ib_destroy_srq;
+        ibdev->ib_dev.post_srq_recv     = mlx4_ib_post_srq_recv;
+        ibdev->ib_dev.create_qp         = mlx4_ib_create_qp;
+        ibdev->ib_dev.modify_qp         = mlx4_ib_modify_qp;
+        ibdev->ib_dev.destroy_qp        = mlx4_ib_destroy_qp;
+        ibdev->ib_dev.post_send         = mlx4_ib_post_send;
+        ibdev->ib_dev.post_recv         = mlx4_ib_post_recv;
+        ibdev->ib_dev.create_cq         = mlx4_ib_create_cq;
+        ibdev->ib_dev.destroy_cq        = mlx4_ib_destroy_cq;
+        ibdev->ib_dev.poll_cq           = mlx4_ib_poll_cq;
+        ibdev->ib_dev.req_notify_cq     = mlx4_ib_arm_cq;
+        ibdev->ib_dev.get_dma_mr        = mlx4_ib_get_dma_mr;
+        ibdev->ib_dev.reg_user_mr       = mlx4_ib_reg_user_mr;
+        ibdev->ib_dev.dereg_mr          = mlx4_ib_dereg_mr;
+        ibdev->ib_dev.attach_mcast      = mlx4_ib_mcg_attach;
+        ibdev->ib_dev.detach_mcast      = mlx4_ib_mcg_detach;
+        ibdev->ib_dev.process_mad       = mlx4_ib_process_mad;
+
+        if (init_node_data(ibdev))
+                goto err_map;
+
+        spin_lock_init(&ibdev->sm_lock);
+        mutex_init(&ibdev->cap_mask_mutex);
+
+        if (ib_register_device(&ibdev->ib_dev))
+                goto err_map;
+
+        if (mlx4_ib_mad_init(ibdev))
+                goto err_reg;
+
+        return ibdev;
+
+err_reg:
+        ib_unregister_device(&ibdev->ib_dev);
+
+err_map:
+        iounmap(ibdev->uar_map);
+
+err_uar:
+        mlx4_uar_free(dev, &ibdev->priv_uar);
+
+err_pd:
+        mlx4_pd_free(dev, ibdev->priv_pdn);
+
+err_dealloc:
+        ib_dealloc_device(&ibdev->ib_dev);
+
+        return NULL;
+}
+
+static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
+{
+        struct mlx4_ib_dev *ibdev = ibdev_ptr;
+        int p;
+
+        for (p = 1; p <= dev->caps.num_ports; ++p)
+                mlx4_CLOSE_PORT(dev, p);
+
+        mlx4_ib_mad_cleanup(ibdev);
+        ib_unregister_device(&ibdev->ib_dev);
+        iounmap(ibdev->uar_map);
+        mlx4_uar_free(dev, &ibdev->priv_uar);
+        mlx4_pd_free(dev, ibdev->priv_pdn);
+        ib_dealloc_device(&ibdev->ib_dev);
+}
+
+static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr,
+                          enum mlx4_dev_event event, int subtype,
+                          int port)
+{
+        struct ib_event ibev;
+
+        switch (event) {
+        case MLX4_EVENT_TYPE_PORT_CHANGE:
+                ibev.event = subtype == MLX4_PORT_CHANGE_SUBTYPE_ACTIVE ?
+                        IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR;
+                break;
+
+        case MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR:
+                ibev.event = IB_EVENT_DEVICE_FATAL;
+                break;
+
+        default:
+                return;
+        }
+
+        ibev.device           = ibdev_ptr;
+        ibev.element.port_num = port;
+
+        ib_dispatch_event(&ibev);
+}
+
+static struct mlx4_interface mlx4_ib_interface = {
+        .add    = mlx4_ib_add,
+        .remove = mlx4_ib_remove,
+        .event  = mlx4_ib_event
+};
+
+static int __init mlx4_ib_init(void)
+{
+        return mlx4_register_interface(&mlx4_ib_interface);
+}
+
+static void __exit mlx4_ib_cleanup(void)
+{
+        mlx4_unregister_interface(&mlx4_ib_interface);
+}
+
+module_init(mlx4_ib_init);
+module_exit(mlx4_ib_cleanup);
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
new file mode 100644
index 000000000000..93dac71f3230
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -0,0 +1,285 @@
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_IB_H
+#define MLX4_IB_H
+
+#include <linux/compiler.h>
+#include <linux/list.h>
+
+#include <rdma/ib_verbs.h>
+#include <rdma/ib_umem.h>
+
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/doorbell.h>
+
+enum {
+        MLX4_IB_DB_PER_PAGE     = PAGE_SIZE / 4
+};
+
+struct mlx4_ib_db_pgdir;
+struct mlx4_ib_user_db_page;
+
+struct mlx4_ib_db {
+        __be32                 *db;
+        union {
+                struct mlx4_ib_db_pgdir        *pgdir;
+                struct mlx4_ib_user_db_page    *user_page;
+        }                       u;
+        dma_addr_t              dma;
+        int                     index;
+        int                     order;
+};
+
+struct mlx4_ib_ucontext {
+        struct ib_ucontext      ibucontext;
+        struct mlx4_uar         uar;
+        struct list_head        db_page_list;
+        struct mutex            db_page_mutex;
+};
+
+struct mlx4_ib_pd {
+        struct ib_pd            ibpd;
+        u32                     pdn;
+};
+
+struct mlx4_ib_cq_buf {
+        struct mlx4_buf         buf;
+        struct mlx4_mtt         mtt;
+};
+
+struct mlx4_ib_cq {
+        struct ib_cq            ibcq;
+        struct mlx4_cq          mcq;
+        struct mlx4_ib_cq_buf   buf;
+        struct mlx4_ib_db       db;
+        spinlock_t              lock;
+        struct ib_umem         *umem;
+};
+
+struct mlx4_ib_mr {
+        struct ib_mr            ibmr;
+        struct mlx4_mr          mmr;
+        struct ib_umem         *umem;
+};
+
+struct mlx4_ib_wq {
+        u64                    *wrid;
+        spinlock_t              lock;
+        int                     max;
+        int                     max_gs;
+        int                     offset;
+        int                     wqe_shift;
+        unsigned                head;
+        unsigned                tail;
+};
+
+struct mlx4_ib_qp {
+        struct ib_qp            ibqp;
+        struct mlx4_qp          mqp;
+        struct mlx4_buf         buf;
+
+        struct mlx4_ib_db       db;
+        struct mlx4_ib_wq       rq;
+
+        u32                     doorbell_qpn;
+        __be32                  sq_signal_bits;
+        struct mlx4_ib_wq       sq;
+
+        struct ib_umem         *umem;
+        struct mlx4_mtt         mtt;
+        int                     buf_size;
+        struct mutex            mutex;
+        u8                      port;
+        u8                      alt_port;
+        u8                      atomic_rd_en;
+        u8                      resp_depth;
+        u8                      state;
+};
+
+struct mlx4_ib_srq {
+        struct ib_srq           ibsrq;
+        struct mlx4_srq         msrq;
+        struct mlx4_buf         buf;
+        struct mlx4_ib_db       db;
+        u64                    *wrid;
+        spinlock_t              lock;
+        int                     head;
+        int                     tail;
+        u16                     wqe_ctr;
+        struct ib_umem         *umem;
+        struct mlx4_mtt         mtt;
+        struct mutex            mutex;
+};
+
+struct mlx4_ib_ah {
+        struct ib_ah            ibah;
+        struct mlx4_av          av;
+};
+
+struct mlx4_ib_dev {
+        struct ib_device        ib_dev;
+        struct mlx4_dev        *dev;
+        void __iomem           *uar_map;
+
+        struct list_head        pgdir_list;
+        struct mutex            pgdir_mutex;
+
+        struct mlx4_uar         priv_uar;
+        u32                     priv_pdn;
+        MLX4_DECLARE_DOORBELL_LOCK(uar_lock);
+
+        struct ib_mad_agent    *send_agent[MLX4_MAX_PORTS][2];
+        struct ib_ah           *sm_ah[MLX4_MAX_PORTS];
+        spinlock_t              sm_lock;
+
+        struct mutex            cap_mask_mutex;
+};
+
+static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev)
+{
+        return container_of(ibdev, struct mlx4_ib_dev, ib_dev);
+}
+
+static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
+{
+        return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext);
+}
+
+static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd)
+{
+        return container_of(ibpd, struct mlx4_ib_pd, ibpd);
+}
+
+static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq)
+{
+        return container_of(ibcq, struct mlx4_ib_cq, ibcq);
+}
+
+static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq)
+{
+        return container_of(mcq, struct mlx4_ib_cq, mcq);
+}
+
+static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr)
+{
+        return container_of(ibmr, struct mlx4_ib_mr, ibmr);
+}
+
+static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp)
+{
+        return container_of(ibqp, struct mlx4_ib_qp, ibqp);
+}
+
+static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp)
+{
+        return container_of(mqp, struct mlx4_ib_qp, mqp);
+}
+
+static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq)
+{
+        return container_of(ibsrq, struct mlx4_ib_srq, ibsrq);
+}
+
+static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq)
+{
+        return container_of(msrq, struct mlx4_ib_srq, msrq);
+}
+
+static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah)
+{
+        return container_of(ibah, struct mlx4_ib_ah, ibah);
+}
+
+int mlx4_ib_db_alloc(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db, int order);
+void mlx4_ib_db_free(struct mlx4_ib_dev *dev, struct mlx4_ib_db *db);
+int mlx4_ib_db_map_user(struct mlx4_ib_ucontext *context, unsigned long virt,
+                        struct mlx4_ib_db *db);
+void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_ib_db *db);
+
+struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc);
+int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
+                           struct ib_umem *umem);
+struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+                                  u64 virt_addr, int access_flags,
+                                  struct ib_udata *udata);
+int mlx4_ib_dereg_mr(struct ib_mr *mr);
+
+struct ib_cq *mlx4_ib_create_cq(struct ib_device *ibdev, int entries, int vector,
+                                struct ib_ucontext *context,
+                                struct ib_udata *udata);
+int mlx4_ib_destroy_cq(struct ib_cq *cq);
+int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
+int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
+void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
+void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq);
+
+struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr);
+int mlx4_ib_query_ah(struct ib_ah *ibah, struct ib_ah_attr *ah_attr);
+int mlx4_ib_destroy_ah(struct ib_ah *ah);
+
+struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
+                                  struct ib_srq_init_attr *init_attr,
+                                  struct ib_udata *udata);
+int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
+                       enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
+int mlx4_ib_destroy_srq(struct ib_srq *srq);
+void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index);
+int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
+                          struct ib_recv_wr **bad_wr);
+
+struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
+                                struct ib_qp_init_attr *init_attr,
+                                struct ib_udata *udata);
+int mlx4_ib_destroy_qp(struct ib_qp *qp);
+int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+                      int attr_mask, struct ib_udata *udata);
+int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
+                      struct ib_send_wr **bad_wr);
+int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
+                      struct ib_recv_wr **bad_wr);
+
+int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int ignore_mkey, int ignore_bkey,
+                 int port, struct ib_wc *in_wc, struct ib_grh *in_grh,
+                 void *in_mad, void *response_mad);
+int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
+                        struct ib_wc *in_wc, struct ib_grh *in_grh,
+                        struct ib_mad *in_mad, struct ib_mad *out_mad);
+int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
+void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
+
+static inline int mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah)
+{
+        return !!(ah->av.g_slid & 0x80);
+}
+
+#endif /* MLX4_IB_H */
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
new file mode 100644
index 000000000000..85ae906f1d12
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -0,0 +1,184 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "mlx4_ib.h"
+
+static u32 convert_access(int acc)
+{
+        return (acc & IB_ACCESS_REMOTE_ATOMIC ? MLX4_PERM_ATOMIC       : 0) |
+               (acc & IB_ACCESS_REMOTE_WRITE  ? MLX4_PERM_REMOTE_WRITE : 0) |
+               (acc & IB_ACCESS_REMOTE_READ   ? MLX4_PERM_REMOTE_READ  : 0) |
+               (acc & IB_ACCESS_LOCAL_WRITE   ? MLX4_PERM_LOCAL_WRITE  : 0) |
+               MLX4_PERM_LOCAL_READ;
+}
+
+struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc)
+{
+        struct mlx4_ib_mr *mr;
+        int err;
+
+        mr = kmalloc(sizeof *mr, GFP_KERNEL);
+        if (!mr)
+                return ERR_PTR(-ENOMEM);
+
+        err = mlx4_mr_alloc(to_mdev(pd->device)->dev, to_mpd(pd)->pdn, 0,
+                            ~0ull, convert_access(acc), 0, 0, &mr->mmr);
+        if (err)
+                goto err_free;
+
+        err = mlx4_mr_enable(to_mdev(pd->device)->dev, &mr->mmr);
+        if (err)
+                goto err_mr;
+
+        mr->ibmr.rkey = mr->ibmr.lkey = mr->mmr.key;
+        mr->umem = NULL;
+
+        return &mr->ibmr;
+
+err_mr:
+        mlx4_mr_free(to_mdev(pd->device)->dev, &mr->mmr);
+
+err_free:
+        kfree(mr);
+
+        return ERR_PTR(err);
+}
+
+int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt,
+                           struct ib_umem *umem)
+{
+        u64 *pages;
+        struct ib_umem_chunk *chunk;
+        int i, j, k;
+        int n;
+        int len;
+        int err = 0;
+
+        pages = (u64 *) __get_free_page(GFP_KERNEL);
+        if (!pages)
+                return -ENOMEM;
+
+        i = n = 0;
+
+        list_for_each_entry(chunk, &umem->chunk_list, list)
+                for (j = 0; j < chunk->nmap; ++j) {
+                        len = sg_dma_len(&chunk->page_list[j]) >> mtt->page_shift;
+                        for (k = 0; k < len; ++k) {
+                                pages[i++] = sg_dma_address(&chunk->page_list[j]) +
+                                        umem->page_size * k;
+                                /*
+                                 * Be friendly to WRITE_MTT firmware
+                                 * command, and pass it chunks of
+                                 * appropriate size.
+                                 */
+                                if (i == PAGE_SIZE / sizeof (u64) - 2) {
+                                        err = mlx4_write_mtt(dev->dev, mtt, n,
+                                                             i, pages);
+                                        if (err)
+                                                goto out;
+                                        n += i;
+                                        i = 0;
+                                }
+                        }
+                }
+
+        if (i)
+                err = mlx4_write_mtt(dev->dev, mtt, n, i, pages);
+
+out:
+        free_page((unsigned long) pages);
+        return err;
+}
+
+struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+                                  u64 virt_addr, int access_flags,
+                                  struct ib_udata *udata)
+{
+        struct mlx4_ib_dev *dev = to_mdev(pd->device);
+        struct mlx4_ib_mr *mr;
+        int shift;
+        int err;
+        int n;
+
+        mr = kmalloc(sizeof *mr, GFP_KERNEL);
+        if (!mr)
+                return ERR_PTR(-ENOMEM);
+
+        mr->umem = ib_umem_get(pd->uobject->context, start, length, access_flags);
+        if (IS_ERR(mr->umem)) {
+                err = PTR_ERR(mr->umem);
+                goto err_free;
+        }
+
+        n = ib_umem_page_count(mr->umem);
+        shift = ilog2(mr->umem->page_size);
+
+        err = mlx4_mr_alloc(dev->dev, to_mpd(pd)->pdn, virt_addr, length,
+                            convert_access(access_flags), n, shift, &mr->mmr);
+        if (err)
+                goto err_umem;
+
+        err = mlx4_ib_umem_write_mtt(dev, &mr->mmr.mtt, mr->umem);
+        if (err)
+                goto err_mr;
+
+        err = mlx4_mr_enable(dev->dev, &mr->mmr);
+        if (err)
+                goto err_mr;
+
+        mr->ibmr.rkey = mr->ibmr.lkey = mr->mmr.key;
+
+        return &mr->ibmr;
+
+err_mr:
+        mlx4_mr_free(to_mdev(pd->device)->dev, &mr->mmr);
+
+err_umem:
+        ib_umem_release(mr->umem);
+
+err_free:
+        kfree(mr);
+
+        return ERR_PTR(err);
+}
+
+int mlx4_ib_dereg_mr(struct ib_mr *ibmr)
+{
+        struct mlx4_ib_mr *mr = to_mmr(ibmr);
+
+        mlx4_mr_free(to_mdev(ibmr->device)->dev, &mr->mmr);
+        if (mr->umem)
+                ib_umem_release(mr->umem);
+        kfree(mr);
+
+        return 0;
+}
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
new file mode 100644
index 000000000000..5cd706908450
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -0,0 +1,1294 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <rdma/ib_cache.h>
+#include <rdma/ib_pack.h>
+
+#include <linux/mlx4/qp.h>
+
+#include "mlx4_ib.h"
+#include "user.h"
+
+enum {
+        MLX4_IB_ACK_REQ_FREQ    = 8,
+};
+
+enum {
+        MLX4_IB_DEFAULT_SCHED_QUEUE     = 0x83,
+        MLX4_IB_DEFAULT_QP0_SCHED_QUEUE = 0x3f
+};
+
+enum {
+        /*
+         * Largest possible UD header: send with GRH and immediate data.
+         */
+        MLX4_IB_UD_HEADER_SIZE          = 72
+};
+
+struct mlx4_ib_sqp {
+        struct mlx4_ib_qp       qp;
+        int                     pkey_index;
+        u32                     qkey;
+        u32                     send_psn;
+        struct ib_ud_header     ud_header;
+        u8                      header_buf[MLX4_IB_UD_HEADER_SIZE];
+};
+
+static const __be32 mlx4_ib_opcode[] = {
+        [IB_WR_SEND]                    = __constant_cpu_to_be32(MLX4_OPCODE_SEND),
+        [IB_WR_SEND_WITH_IMM]           = __constant_cpu_to_be32(MLX4_OPCODE_SEND_IMM),
+        [IB_WR_RDMA_WRITE]              = __constant_cpu_to_be32(MLX4_OPCODE_RDMA_WRITE),
+        [IB_WR_RDMA_WRITE_WITH_IMM]     = __constant_cpu_to_be32(MLX4_OPCODE_RDMA_WRITE_IMM),
+        [IB_WR_RDMA_READ]               = __constant_cpu_to_be32(MLX4_OPCODE_RDMA_READ),
+        [IB_WR_ATOMIC_CMP_AND_SWP]      = __constant_cpu_to_be32(MLX4_OPCODE_ATOMIC_CS),
+        [IB_WR_ATOMIC_FETCH_AND_ADD]    = __constant_cpu_to_be32(MLX4_OPCODE_ATOMIC_FA),
+};
+
+static struct mlx4_ib_sqp *to_msqp(struct mlx4_ib_qp *mqp)
+{
+        return container_of(mqp, struct mlx4_ib_sqp, qp);
+}
+
+static int is_sqp(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
+{
+        return qp->mqp.qpn >= dev->dev->caps.sqp_start &&
+                qp->mqp.qpn <= dev->dev->caps.sqp_start + 3;
+}
+
+static int is_qp0(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
+{
+        return qp->mqp.qpn >= dev->dev->caps.sqp_start &&
+                qp->mqp.qpn <= dev->dev->caps.sqp_start + 1;
+}
+
+static void *get_wqe(struct mlx4_ib_qp *qp, int offset)
+{
+        if (qp->buf.nbufs == 1)
+                return qp->buf.u.direct.buf + offset;
+        else
+                return qp->buf.u.page_list[offset >> PAGE_SHIFT].buf +
+                        (offset & (PAGE_SIZE - 1));
+}
+
+static void *get_recv_wqe(struct mlx4_ib_qp *qp, int n)
+{
+        return get_wqe(qp, qp->rq.offset + (n << qp->rq.wqe_shift));
+}
+
+static void *get_send_wqe(struct mlx4_ib_qp *qp, int n)
+{
+        return get_wqe(qp, qp->sq.offset + (n << qp->sq.wqe_shift));
+}
+
+static void mlx4_ib_qp_event(struct mlx4_qp *qp, enum mlx4_event type)
+{
+        struct ib_event event;
+        struct ib_qp *ibqp = &to_mibqp(qp)->ibqp;
+
+        if (type == MLX4_EVENT_TYPE_PATH_MIG)
+                to_mibqp(qp)->port = to_mibqp(qp)->alt_port;
+
+        if (ibqp->event_handler) {
+                event.device     = ibqp->device;
+                event.element.qp = ibqp;
+                switch (type) {
+                case MLX4_EVENT_TYPE_PATH_MIG:
+                        event.event = IB_EVENT_PATH_MIG;
+                        break;
+                case MLX4_EVENT_TYPE_COMM_EST:
+                        event.event = IB_EVENT_COMM_EST;
+                        break;
+                case MLX4_EVENT_TYPE_SQ_DRAINED:
+                        event.event = IB_EVENT_SQ_DRAINED;
+                        break;
+                case MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE:
+                        event.event = IB_EVENT_QP_LAST_WQE_REACHED;
+                        break;
+                case MLX4_EVENT_TYPE_WQ_CATAS_ERROR:
+                        event.event = IB_EVENT_QP_FATAL;
+                        break;
+                case MLX4_EVENT_TYPE_PATH_MIG_FAILED:
+                        event.event = IB_EVENT_PATH_MIG_ERR;
+                        break;
+                case MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
+                        event.event = IB_EVENT_QP_REQ_ERR;
+                        break;
+                case MLX4_EVENT_TYPE_WQ_ACCESS_ERROR:
+                        event.event = IB_EVENT_QP_ACCESS_ERR;
+                        break;
+                default:
+                        printk(KERN_WARNING "mlx4_ib: Unexpected event type %d "
+                               "on QP %06x\n", type, qp->qpn);
+                        return;
+                }
+
+                ibqp->event_handler(&event, ibqp->qp_context);
+        }
+}
+
+static int send_wqe_overhead(enum ib_qp_type type)
+{
+        /*
+         * UD WQEs must have a datagram segment.
+         * RC and UC WQEs might have a remote address segment.
+         * MLX WQEs need two extra inline data segments (for the UD
+         * header and space for the ICRC).
+         */
+        switch (type) {
+        case IB_QPT_UD:
+                return sizeof (struct mlx4_wqe_ctrl_seg) +
+                        sizeof (struct mlx4_wqe_datagram_seg);
+        case IB_QPT_UC:
+                return sizeof (struct mlx4_wqe_ctrl_seg) +
+                        sizeof (struct mlx4_wqe_raddr_seg);
+        case IB_QPT_RC:
+                return sizeof (struct mlx4_wqe_ctrl_seg) +
+                        sizeof (struct mlx4_wqe_atomic_seg) +
+                        sizeof (struct mlx4_wqe_raddr_seg);
+        case IB_QPT_SMI:
+        case IB_QPT_GSI:
+                return sizeof (struct mlx4_wqe_ctrl_seg) +
+                        ALIGN(MLX4_IB_UD_HEADER_SIZE +
+                              sizeof (struct mlx4_wqe_inline_seg),
+                              sizeof (struct mlx4_wqe_data_seg)) +
+                        ALIGN(4 +
+                              sizeof (struct mlx4_wqe_inline_seg),
+                              sizeof (struct mlx4_wqe_data_seg));
+        default:
+                return sizeof (struct mlx4_wqe_ctrl_seg);
+        }
+}
+
+static int set_qp_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
+                       enum ib_qp_type type, struct mlx4_ib_qp *qp)
+{
+        /* Sanity check QP size before proceeding */
+        if (cap->max_send_wr     > dev->dev->caps.max_wqes  ||
+            cap->max_recv_wr     > dev->dev->caps.max_wqes  ||
+            cap->max_send_sge    > dev->dev->caps.max_sq_sg ||
+            cap->max_recv_sge    > dev->dev->caps.max_rq_sg ||
+            cap->max_inline_data + send_wqe_overhead(type) +
+            sizeof (struct mlx4_wqe_inline_seg) > dev->dev->caps.max_sq_desc_sz)
+                return -EINVAL;
+
+        /*
+         * For MLX transport we need 2 extra S/G entries:
+         * one for the header and one for the checksum at the end
+         */
+        if ((type == IB_QPT_SMI || type == IB_QPT_GSI) &&
+            cap->max_send_sge + 2 > dev->dev->caps.max_sq_sg)
+                return -EINVAL;
+
+        qp->rq.max = cap->max_recv_wr ? roundup_pow_of_two(cap->max_recv_wr) : 0;
+        qp->sq.max = cap->max_send_wr ? roundup_pow_of_two(cap->max_send_wr) : 0;
+
+        qp->rq.wqe_shift = ilog2(roundup_pow_of_two(cap->max_recv_sge *
+                                                    sizeof (struct mlx4_wqe_data_seg)));
+        qp->rq.max_gs    = (1 << qp->rq.wqe_shift) / sizeof (struct mlx4_wqe_data_seg);
+
+        qp->sq.wqe_shift = ilog2(roundup_pow_of_two(max(cap->max_send_sge *
+                                                        sizeof (struct mlx4_wqe_data_seg),
+                                                        cap->max_inline_data +
+                                                        sizeof (struct mlx4_wqe_inline_seg)) +
+                                                    send_wqe_overhead(type)));
+        qp->sq.max_gs    = ((1 << qp->sq.wqe_shift) - send_wqe_overhead(type)) /
+                sizeof (struct mlx4_wqe_data_seg);
+
+        qp->buf_size = (qp->rq.max << qp->rq.wqe_shift) +
+                (qp->sq.max << qp->sq.wqe_shift);
+        if (qp->rq.wqe_shift > qp->sq.wqe_shift) {
+                qp->rq.offset = 0;
+                qp->sq.offset = qp->rq.max << qp->rq.wqe_shift;
+        } else {
+                qp->rq.offset = qp->sq.max << qp->sq.wqe_shift;
+                qp->sq.offset = 0;
+        }
+
+        cap->max_send_wr  = qp->sq.max;
+        cap->max_recv_wr  = qp->rq.max;
+        cap->max_send_sge = qp->sq.max_gs;
+        cap->max_recv_sge = qp->rq.max_gs;
+        cap->max_inline_data = (1 << qp->sq.wqe_shift) - send_wqe_overhead(type) -
+                sizeof (struct mlx4_wqe_inline_seg);
+
+        return 0;
+}
+
+static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
+                            struct ib_qp_init_attr *init_attr,
+                            struct ib_udata *udata, int sqpn, struct mlx4_ib_qp *qp)
+{
+        struct mlx4_wqe_ctrl_seg *ctrl;
+        int err;
+        int i;
+
+        mutex_init(&qp->mutex);
+        spin_lock_init(&qp->sq.lock);
+        spin_lock_init(&qp->rq.lock);
+
+        qp->state        = IB_QPS_RESET;
+        qp->atomic_rd_en = 0;
+        qp->resp_depth   = 0;
+
+        qp->rq.head         = 0;
+        qp->rq.tail         = 0;
+        qp->sq.head         = 0;
+        qp->sq.tail         = 0;
+
+        err = set_qp_size(dev, &init_attr->cap, init_attr->qp_type, qp);
+        if (err)
+                goto err;
+
+        if (pd->uobject) {
+                struct mlx4_ib_create_qp ucmd;
+
+                if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
+                        err = -EFAULT;
+                        goto err;
+                }
+
+                qp->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr,
+                                       qp->buf_size, 0);
+                if (IS_ERR(qp->umem)) {
+                        err = PTR_ERR(qp->umem);
+                        goto err;
+                }
+
+                err = mlx4_mtt_init(dev->dev, ib_umem_page_count(qp->umem),
+                                    ilog2(qp->umem->page_size), &qp->mtt);
+                if (err)
+                        goto err_buf;
+
+                err = mlx4_ib_umem_write_mtt(dev, &qp->mtt, qp->umem);
+                if (err)
+                        goto err_mtt;
+
+                err = mlx4_ib_db_map_user(to_mucontext(pd->uobject->context),
+                                          ucmd.db_addr, &qp->db);
+                if (err)
+                        goto err_mtt;
+        } else {
+                err = mlx4_ib_db_alloc(dev, &qp->db, 0);
+                if (err)
+                        goto err;
+
+                *qp->db.db = 0;
+
+                if (mlx4_buf_alloc(dev->dev, qp->buf_size, PAGE_SIZE * 2, &qp->buf)) {
+                        err = -ENOMEM;
+                        goto err_db;
+                }
+
+                err = mlx4_mtt_init(dev->dev, qp->buf.npages, qp->buf.page_shift,
+                                    &qp->mtt);
+                if (err)
+                        goto err_buf;
+
+                err = mlx4_buf_write_mtt(dev->dev, &qp->mtt, &qp->buf);
+                if (err)
+                        goto err_mtt;
+
+                for (i = 0; i < qp->sq.max; ++i) {
+                        ctrl = get_send_wqe(qp, i);
+                        ctrl->owner_opcode = cpu_to_be32(1 << 31);
+                }
+
+                qp->sq.wrid  = kmalloc(qp->sq.max * sizeof (u64), GFP_KERNEL);
+                qp->rq.wrid  = kmalloc(qp->rq.max * sizeof (u64), GFP_KERNEL);
+
+                if (!qp->sq.wrid || !qp->rq.wrid) {
+                        err = -ENOMEM;
+                        goto err_wrid;
+                }
+
+                /* We don't support inline sends for kernel QPs (yet) */
+                init_attr->cap.max_inline_data = 0;
+        }
+
+        err = mlx4_qp_alloc(dev->dev, sqpn, &qp->mqp);
+        if (err)
+                goto err_wrid;
+
+        /*
+         * Hardware wants QPN written in big-endian order (after
+         * shifting) for send doorbell.  Precompute this value to save
+         * a little bit when posting sends.
+         */
+        qp->doorbell_qpn = swab32(qp->mqp.qpn << 8);
+
+        if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR)
+                qp->sq_signal_bits = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE);
+        else
+                qp->sq_signal_bits = 0;
+
+        qp->mqp.event = mlx4_ib_qp_event;
+
+        return 0;
+
+err_wrid:
+        if (pd->uobject)
+                mlx4_ib_db_unmap_user(to_mucontext(pd->uobject->context), &qp->db);
+        else {
+                kfree(qp->sq.wrid);
+                kfree(qp->rq.wrid);
+        }
+
+err_mtt:
+        mlx4_mtt_cleanup(dev->dev, &qp->mtt);
+
+err_buf:
+        if (pd->uobject)
+                ib_umem_release(qp->umem);
+        else
+                mlx4_buf_free(dev->dev, qp->buf_size, &qp->buf);
+
+err_db:
+        if (!pd->uobject)
+                mlx4_ib_db_free(dev, &qp->db);
+
+err:
+        return err;
+}
+
+static enum mlx4_qp_state to_mlx4_state(enum ib_qp_state state)
+{
+        switch (state) {
+        case IB_QPS_RESET:      return MLX4_QP_STATE_RST;
+        case IB_QPS_INIT:       return MLX4_QP_STATE_INIT;
+        case IB_QPS_RTR:        return MLX4_QP_STATE_RTR;
+        case IB_QPS_RTS:        return MLX4_QP_STATE_RTS;
+        case IB_QPS_SQD:        return MLX4_QP_STATE_SQD;
+        case IB_QPS_SQE:        return MLX4_QP_STATE_SQER;
+        case IB_QPS_ERR:        return MLX4_QP_STATE_ERR;
+        default:                return -1;
+        }
+}
+
+static void mlx4_ib_lock_cqs(struct mlx4_ib_cq *send_cq, struct mlx4_ib_cq *recv_cq)
+{
+        if (send_cq == recv_cq)
+                spin_lock_irq(&send_cq->lock);
+        else if (send_cq->mcq.cqn < recv_cq->mcq.cqn) {
+                spin_lock_irq(&send_cq->lock);
+                spin_lock_nested(&recv_cq->lock, SINGLE_DEPTH_NESTING);
+        } else {
+                spin_lock_irq(&recv_cq->lock);
+                spin_lock_nested(&send_cq->lock, SINGLE_DEPTH_NESTING);
+        }
+}
+
+static void mlx4_ib_unlock_cqs(struct mlx4_ib_cq *send_cq, struct mlx4_ib_cq *recv_cq)
+{
+        if (send_cq == recv_cq)
+                spin_unlock_irq(&send_cq->lock);
+        else if (send_cq->mcq.cqn < recv_cq->mcq.cqn) {
+                spin_unlock(&recv_cq->lock);
+                spin_unlock_irq(&send_cq->lock);
+        } else {
+                spin_unlock(&send_cq->lock);
+                spin_unlock_irq(&recv_cq->lock);
+        }
+}
+
+static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
+                              int is_user)
+{
+        struct mlx4_ib_cq *send_cq, *recv_cq;
+
+        if (qp->state != IB_QPS_RESET)
+                if (mlx4_qp_modify(dev->dev, NULL, to_mlx4_state(qp->state),
+                                   MLX4_QP_STATE_RST, NULL, 0, 0, &qp->mqp))
+                        printk(KERN_WARNING "mlx4_ib: modify QP %06x to RESET failed.\n",
+                               qp->mqp.qpn);
+
+        send_cq = to_mcq(qp->ibqp.send_cq);
+        recv_cq = to_mcq(qp->ibqp.recv_cq);
+
+        mlx4_ib_lock_cqs(send_cq, recv_cq);
+
+        if (!is_user) {
+                __mlx4_ib_cq_clean(recv_cq, qp->mqp.qpn,
+                                 qp->ibqp.srq ? to_msrq(qp->ibqp.srq): NULL);
+                if (send_cq != recv_cq)
+                        __mlx4_ib_cq_clean(send_cq, qp->mqp.qpn, NULL);
+        }
+
+        mlx4_qp_remove(dev->dev, &qp->mqp);
+
+        mlx4_ib_unlock_cqs(send_cq, recv_cq);
+
+        mlx4_qp_free(dev->dev, &qp->mqp);
+        mlx4_mtt_cleanup(dev->dev, &qp->mtt);
+
+        if (is_user) {
+                mlx4_ib_db_unmap_user(to_mucontext(qp->ibqp.uobject->context),
+                                      &qp->db);
+                ib_umem_release(qp->umem);
+        } else {
+                kfree(qp->sq.wrid);
+                kfree(qp->rq.wrid);
+                mlx4_buf_free(dev->dev, qp->buf_size, &qp->buf);
+                mlx4_ib_db_free(dev, &qp->db);
+        }
+}
+
+struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd,
+                                struct ib_qp_init_attr *init_attr,
+                                struct ib_udata *udata)
+{
+        struct mlx4_ib_dev *dev = to_mdev(pd->device);
+        struct mlx4_ib_sqp *sqp;
+        struct mlx4_ib_qp *qp;
+        int err;
+
+        switch (init_attr->qp_type) {
+        case IB_QPT_RC:
+        case IB_QPT_UC:
+        case IB_QPT_UD:
+        {
+                qp = kmalloc(sizeof *qp, GFP_KERNEL);
+                if (!qp)
+                        return ERR_PTR(-ENOMEM);
+
+                err = create_qp_common(dev, pd, init_attr, udata, 0, qp);
+                if (err) {
+                        kfree(qp);
+                        return ERR_PTR(err);
+                }
+
+                qp->ibqp.qp_num = qp->mqp.qpn;
+
+                break;
+        }
+        case IB_QPT_SMI:
+        case IB_QPT_GSI:
+        {
+                /* Userspace is not allowed to create special QPs: */
+                if (pd->uobject)
+                        return ERR_PTR(-EINVAL);
+
+                sqp = kmalloc(sizeof *sqp, GFP_KERNEL);
+                if (!sqp)
+                        return ERR_PTR(-ENOMEM);
+
+                qp = &sqp->qp;
+
+                err = create_qp_common(dev, pd, init_attr, udata,
+                                       dev->dev->caps.sqp_start +
+                                       (init_attr->qp_type == IB_QPT_SMI ? 0 : 2) +
+                                       init_attr->port_num - 1,
+                                       qp);
+                if (err) {
+                        kfree(sqp);
+                        return ERR_PTR(err);
+                }
+
+                qp->port        = init_attr->port_num;
+                qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1;
+
+                break;
+        }
+        default:
+                /* Don't support raw QPs */
+                return ERR_PTR(-EINVAL);
+        }
+
+        return &qp->ibqp;
+}
+
+int mlx4_ib_destroy_qp(struct ib_qp *qp)
+{
+        struct mlx4_ib_dev *dev = to_mdev(qp->device);
+        struct mlx4_ib_qp *mqp = to_mqp(qp);
+
+        if (is_qp0(dev, mqp))
+                mlx4_CLOSE_PORT(dev->dev, mqp->port);
+
+        destroy_qp_common(dev, mqp, !!qp->pd->uobject);
+
+        if (is_sqp(dev, mqp))
+                kfree(to_msqp(mqp));
+        else
+                kfree(mqp);
+
+        return 0;
+}
+
+static void init_port(struct mlx4_ib_dev *dev, int port)
+{
+        struct mlx4_init_port_param param;
+        int err;
+
+        memset(&param, 0, sizeof param);
+
+        param.port_width_cap = dev->dev->caps.port_width_cap;
+        param.vl_cap         = dev->dev->caps.vl_cap;
+        param.mtu            = ib_mtu_enum_to_int(dev->dev->caps.mtu_cap);
+        param.max_gid        = dev->dev->caps.gid_table_len;
+        param.max_pkey       = dev->dev->caps.pkey_table_len;
+
+        err = mlx4_INIT_PORT(dev->dev, &param, port);
+        if (err)
+                printk(KERN_WARNING "INIT_PORT failed, return code %d.\n", err);
+}
+
+static int to_mlx4_st(enum ib_qp_type type)
+{
+        switch (type) {
+        case IB_QPT_RC:         return MLX4_QP_ST_RC;
+        case IB_QPT_UC:         return MLX4_QP_ST_UC;
+        case IB_QPT_UD:         return MLX4_QP_ST_UD;
+        case IB_QPT_SMI:
+        case IB_QPT_GSI:        return MLX4_QP_ST_MLX;
+        default:                return -1;
+        }
+}
+
+static __be32 to_mlx4_access_flags(struct mlx4_ib_qp *qp, struct ib_qp_attr *attr,
+                                   int attr_mask)
+{
+        u8 dest_rd_atomic;
+        u32 access_flags;
+        u32 hw_access_flags = 0;
+
+        if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
+                dest_rd_atomic = attr->max_dest_rd_atomic;
+        else
+                dest_rd_atomic = qp->resp_depth;
+
+        if (attr_mask & IB_QP_ACCESS_FLAGS)
+                access_flags = attr->qp_access_flags;
+        else
+                access_flags = qp->atomic_rd_en;
+
+        if (!dest_rd_atomic)
+                access_flags &= IB_ACCESS_REMOTE_WRITE;
+
+        if (access_flags & IB_ACCESS_REMOTE_READ)
+                hw_access_flags |= MLX4_QP_BIT_RRE;
+        if (access_flags & IB_ACCESS_REMOTE_ATOMIC)
+                hw_access_flags |= MLX4_QP_BIT_RAE;
+        if (access_flags & IB_ACCESS_REMOTE_WRITE)
+                hw_access_flags |= MLX4_QP_BIT_RWE;
+
+        return cpu_to_be32(hw_access_flags);
+}
+
+static void store_sqp_attrs(struct mlx4_ib_sqp *sqp, struct ib_qp_attr *attr,
+                            int attr_mask)
+{
+        if (attr_mask & IB_QP_PKEY_INDEX)
+                sqp->pkey_index = attr->pkey_index;
+        if (attr_mask & IB_QP_QKEY)
+                sqp->qkey = attr->qkey;
+        if (attr_mask & IB_QP_SQ_PSN)
+                sqp->send_psn = attr->sq_psn;
+}
+
+static void mlx4_set_sched(struct mlx4_qp_path *path, u8 port)
+{
+        path->sched_queue = (path->sched_queue & 0xbf) | ((port - 1) << 6);
+}
+
+static int mlx4_set_path(struct mlx4_ib_dev *dev, struct ib_ah_attr *ah,
+                         struct mlx4_qp_path *path, u8 port)
+{
+        path->grh_mylmc     = ah->src_path_bits & 0x7f;
+        path->rlid          = cpu_to_be16(ah->dlid);
+        if (ah->static_rate) {
+                path->static_rate = ah->static_rate + MLX4_STAT_RATE_OFFSET;
+                while (path->static_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&
+                       !(1 << path->static_rate & dev->dev->caps.stat_rate_support))
+                        --path->static_rate;
+        } else
+                path->static_rate = 0;
+        path->counter_index = 0xff;
+
+        if (ah->ah_flags & IB_AH_GRH) {
+                if (ah->grh.sgid_index >= dev->dev->caps.gid_table_len) {
+                        printk(KERN_ERR "sgid_index (%u) too large. max is %d\n",
+                               ah->grh.sgid_index, dev->dev->caps.gid_table_len - 1);
+                        return -1;
+                }
+
+                path->grh_mylmc |= 1 << 7;
+                path->mgid_index = ah->grh.sgid_index;
+                path->hop_limit  = ah->grh.hop_limit;
+                path->tclass_flowlabel =
+                        cpu_to_be32((ah->grh.traffic_class << 20) |
+                                    (ah->grh.flow_label));
+                memcpy(path->rgid, ah->grh.dgid.raw, 16);
+        }
+
+        path->sched_queue = MLX4_IB_DEFAULT_SCHED_QUEUE |
+                ((port - 1) << 6) | ((ah->sl & 0xf) << 2);
+
+        return 0;
+}
+
+int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
+                      int attr_mask, struct ib_udata *udata)
+{
+        struct mlx4_ib_dev *dev = to_mdev(ibqp->device);
+        struct mlx4_ib_qp *qp = to_mqp(ibqp);
+        struct mlx4_qp_context *context;
+        enum mlx4_qp_optpar optpar = 0;
+        enum ib_qp_state cur_state, new_state;
+        int sqd_event;
+        int err = -EINVAL;
+
+        context = kzalloc(sizeof *context, GFP_KERNEL);
+        if (!context)
+                return -ENOMEM;
+
+        mutex_lock(&qp->mutex);
+
+        cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state;
+        new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
+
+        if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask))
+                goto out;
+
+        if ((attr_mask & IB_QP_PKEY_INDEX) &&
+             attr->pkey_index >= dev->dev->caps.pkey_table_len) {
+                goto out;
+        }
+
+        if ((attr_mask & IB_QP_PORT) &&
+            (attr->port_num == 0 || attr->port_num > dev->dev->caps.num_ports)) {
+                goto out;
+        }
+
+        if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC &&
+            attr->max_rd_atomic > dev->dev->caps.max_qp_init_rdma) {
+                goto out;
+        }
+
+        if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC &&
+            attr->max_dest_rd_atomic > 1 << dev->dev->caps.max_qp_dest_rdma) {
+                goto out;
+        }
+
+        context->flags = cpu_to_be32((to_mlx4_state(new_state) << 28) |
+                                     (to_mlx4_st(ibqp->qp_type) << 16));
+        context->flags     |= cpu_to_be32(1 << 8); /* DE? */
+
+        if (!(attr_mask & IB_QP_PATH_MIG_STATE))
+                context->flags |= cpu_to_be32(MLX4_QP_PM_MIGRATED << 11);
+        else {
+                optpar |= MLX4_QP_OPTPAR_PM_STATE;
+                switch (attr->path_mig_state) {
+                case IB_MIG_MIGRATED:
+                        context->flags |= cpu_to_be32(MLX4_QP_PM_MIGRATED << 11);
+                        break;
+                case IB_MIG_REARM:
+                        context->flags |= cpu_to_be32(MLX4_QP_PM_REARM << 11);
+                        break;
+                case IB_MIG_ARMED:
+                        context->flags |= cpu_to_be32(MLX4_QP_PM_ARMED << 11);
+                        break;
+                }
+        }
+
+        if (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI ||
+            ibqp->qp_type == IB_QPT_UD)
+                context->mtu_msgmax = (IB_MTU_4096 << 5) | 11;
+        else if (attr_mask & IB_QP_PATH_MTU) {
+                if (attr->path_mtu < IB_MTU_256 || attr->path_mtu > IB_MTU_4096) {
+                        printk(KERN_ERR "path MTU (%u) is invalid\n",
+                               attr->path_mtu);
+                        return -EINVAL;
+                }
+                context->mtu_msgmax = (attr->path_mtu << 5) | 31;
+        }
+
+        if (qp->rq.max)
+                context->rq_size_stride = ilog2(qp->rq.max) << 3;
+        context->rq_size_stride |= qp->rq.wqe_shift - 4;
+
+        if (qp->sq.max)
+                context->sq_size_stride = ilog2(qp->sq.max) << 3;
+        context->sq_size_stride |= qp->sq.wqe_shift - 4;
+
+        if (qp->ibqp.uobject)
+                context->usr_page = cpu_to_be32(to_mucontext(ibqp->uobject->context)->uar.index);
+        else
+                context->usr_page = cpu_to_be32(dev->priv_uar.index);
+
+        if (attr_mask & IB_QP_DEST_QPN)
+                context->remote_qpn = cpu_to_be32(attr->dest_qp_num);
+
+        if (attr_mask & IB_QP_PORT) {
+                if (cur_state == IB_QPS_SQD && new_state == IB_QPS_SQD &&
+                    !(attr_mask & IB_QP_AV)) {
+                        mlx4_set_sched(&context->pri_path, attr->port_num);
+                        optpar |= MLX4_QP_OPTPAR_SCHED_QUEUE;
+                }
+        }
+
+        if (attr_mask & IB_QP_PKEY_INDEX) {
+                context->pri_path.pkey_index = attr->pkey_index;
+                optpar |= MLX4_QP_OPTPAR_PKEY_INDEX;
+        }
+
+        if (attr_mask & IB_QP_RNR_RETRY) {
+                context->params1 |= cpu_to_be32(attr->rnr_retry << 13);
+                optpar |= MLX4_QP_OPTPAR_RNR_RETRY;
+        }
+
+        if (attr_mask & IB_QP_AV) {
+                if (mlx4_set_path(dev, &attr->ah_attr, &context->pri_path,
+                                  attr_mask & IB_QP_PORT ? attr->port_num : qp->port)) {
+                        err = -EINVAL;
+                        goto out;
+                }
+
+                optpar |= (MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH |
+                           MLX4_QP_OPTPAR_SCHED_QUEUE);
+        }
+
+        if (attr_mask & IB_QP_TIMEOUT) {
+                context->pri_path.ackto = attr->timeout << 3;
+                optpar |= MLX4_QP_OPTPAR_ACK_TIMEOUT;
+        }
+
+        if (attr_mask & IB_QP_ALT_PATH) {
+                if (attr->alt_pkey_index >= dev->dev->caps.pkey_table_len)
+                        return -EINVAL;
+
+                if (attr->alt_port_num == 0 ||
+                    attr->alt_port_num > dev->dev->caps.num_ports)
+                        return -EINVAL;
+
+                if (mlx4_set_path(dev, &attr->alt_ah_attr, &context->alt_path,
+                                  attr->alt_port_num))
+                        return -EINVAL;
+
+                context->alt_path.pkey_index = attr->alt_pkey_index;
+                context->alt_path.ackto = attr->alt_timeout << 3;
+                optpar |= MLX4_QP_OPTPAR_ALT_ADDR_PATH;
+        }
+
+        context->pd         = cpu_to_be32(to_mpd(ibqp->pd)->pdn);
+        context->params1    = cpu_to_be32(MLX4_IB_ACK_REQ_FREQ << 28);
+        if (attr_mask & IB_QP_RETRY_CNT) {
+                context->params1 |= cpu_to_be32(attr->retry_cnt << 16);
+                optpar |= MLX4_QP_OPTPAR_RETRY_COUNT;
+        }
+
+        if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
+                if (attr->max_rd_atomic)
+                        context->params1 |=
+                                cpu_to_be32(fls(attr->max_rd_atomic - 1) << 21);
+                optpar |= MLX4_QP_OPTPAR_SRA_MAX;
+        }
+
+        if (attr_mask & IB_QP_SQ_PSN)
+                context->next_send_psn = cpu_to_be32(attr->sq_psn);
+
+        context->cqn_send = cpu_to_be32(to_mcq(ibqp->send_cq)->mcq.cqn);
+
+        if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
+                if (attr->max_dest_rd_atomic)
+                        context->params2 |=
+                                cpu_to_be32(fls(attr->max_dest_rd_atomic - 1) << 21);
+                optpar |= MLX4_QP_OPTPAR_RRA_MAX;
+        }
+
+        if (attr_mask & (IB_QP_ACCESS_FLAGS | IB_QP_MAX_DEST_RD_ATOMIC)) {
+                context->params2 |= to_mlx4_access_flags(qp, attr, attr_mask);
+                optpar |= MLX4_QP_OPTPAR_RWE | MLX4_QP_OPTPAR_RRE | MLX4_QP_OPTPAR_RAE;
+        }
+
+        if (ibqp->srq)
+                context->params2 |= cpu_to_be32(MLX4_QP_BIT_RIC);
+
+        if (attr_mask & IB_QP_MIN_RNR_TIMER) {
+                context->rnr_nextrecvpsn |= cpu_to_be32(attr->min_rnr_timer << 24);
+                optpar |= MLX4_QP_OPTPAR_RNR_TIMEOUT;
+        }
+        if (attr_mask & IB_QP_RQ_PSN)
+                context->rnr_nextrecvpsn |= cpu_to_be32(attr->rq_psn);
+
+        context->cqn_recv = cpu_to_be32(to_mcq(ibqp->recv_cq)->mcq.cqn);
+
+        if (attr_mask & IB_QP_QKEY) {
+                context->qkey = cpu_to_be32(attr->qkey);
+                optpar |= MLX4_QP_OPTPAR_Q_KEY;
+        }
+
+        if (ibqp->srq)
+                context->srqn = cpu_to_be32(1 << 24 | to_msrq(ibqp->srq)->msrq.srqn);
+
+        if (cur_state == IB_QPS_RESET && new_state == IB_QPS_INIT)
+                context->db_rec_addr = cpu_to_be64(qp->db.dma);
+
+        if (cur_state == IB_QPS_INIT &&
+            new_state == IB_QPS_RTR  &&
+            (ibqp->qp_type == IB_QPT_GSI || ibqp->qp_type == IB_QPT_SMI ||
+             ibqp->qp_type == IB_QPT_UD)) {
+                context->pri_path.sched_queue = (qp->port - 1) << 6;
+                if (is_qp0(dev, qp))
+                        context->pri_path.sched_queue |= MLX4_IB_DEFAULT_QP0_SCHED_QUEUE;
+                else
+                        context->pri_path.sched_queue |= MLX4_IB_DEFAULT_SCHED_QUEUE;
+        }
+
+        if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD  &&
+            attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify)
+                sqd_event = 1;
+        else
+                sqd_event = 0;
+
+        err = mlx4_qp_modify(dev->dev, &qp->mtt, to_mlx4_state(cur_state),
+                             to_mlx4_state(new_state), context, optpar,
+                             sqd_event, &qp->mqp);
+        if (err)
+                goto out;
+
+        qp->state = new_state;
+
+        if (attr_mask & IB_QP_ACCESS_FLAGS)
+                qp->atomic_rd_en = attr->qp_access_flags;
+        if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)
+                qp->resp_depth = attr->max_dest_rd_atomic;
+        if (attr_mask & IB_QP_PORT)
+                qp->port = attr->port_num;
+        if (attr_mask & IB_QP_ALT_PATH)
+                qp->alt_port = attr->alt_port_num;
+
+        if (is_sqp(dev, qp))
+                store_sqp_attrs(to_msqp(qp), attr, attr_mask);
+
+        /*
+         * If we moved QP0 to RTR, bring the IB link up; if we moved
+         * QP0 to RESET or ERROR, bring the link back down.
+         */
+        if (is_qp0(dev, qp)) {
+                if (cur_state != IB_QPS_RTR && new_state == IB_QPS_RTR)
+                        init_port(dev, qp->port);
+
+                if (cur_state != IB_QPS_RESET && cur_state != IB_QPS_ERR &&
+                    (new_state == IB_QPS_RESET || new_state == IB_QPS_ERR))
+                        mlx4_CLOSE_PORT(dev->dev, qp->port);
+        }
+
+        /*
+         * If we moved a kernel QP to RESET, clean up all old CQ
+         * entries and reinitialize the QP.
+         */
+        if (new_state == IB_QPS_RESET && !ibqp->uobject) {
+                mlx4_ib_cq_clean(to_mcq(ibqp->recv_cq), qp->mqp.qpn,
+                                 ibqp->srq ? to_msrq(ibqp->srq): NULL);
+                if (ibqp->send_cq != ibqp->recv_cq)
+                        mlx4_ib_cq_clean(to_mcq(ibqp->send_cq), qp->mqp.qpn, NULL);
+
+                qp->rq.head = 0;
+                qp->rq.tail = 0;
+                qp->sq.head = 0;
+                qp->sq.tail = 0;
+                *qp->db.db  = 0;
+        }
+
+out:
+        mutex_unlock(&qp->mutex);
+        kfree(context);
+        return err;
+}
+
+static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
+                            void *wqe)
+{
+        struct ib_device *ib_dev = &to_mdev(sqp->qp.ibqp.device)->ib_dev;
+        struct mlx4_wqe_mlx_seg *mlx = wqe;
+        struct mlx4_wqe_inline_seg *inl = wqe + sizeof *mlx;
+        struct mlx4_ib_ah *ah = to_mah(wr->wr.ud.ah);
+        u16 pkey;
+        int send_size;
+        int header_size;
+        int i;
+
+        send_size = 0;
+        for (i = 0; i < wr->num_sge; ++i)
+                send_size += wr->sg_list[i].length;
+
+        ib_ud_header_init(send_size, mlx4_ib_ah_grh_present(ah), &sqp->ud_header);
+
+        sqp->ud_header.lrh.service_level   =
+                be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 28;
+        sqp->ud_header.lrh.destination_lid = ah->av.dlid;
+        sqp->ud_header.lrh.source_lid      = cpu_to_be16(ah->av.g_slid & 0x7f);
+        if (mlx4_ib_ah_grh_present(ah)) {
+                sqp->ud_header.grh.traffic_class =
+                        (be32_to_cpu(ah->av.sl_tclass_flowlabel) >> 20) & 0xff;
+                sqp->ud_header.grh.flow_label    =
+                        ah->av.sl_tclass_flowlabel & cpu_to_be32(0xfffff);
+                ib_get_cached_gid(ib_dev, be32_to_cpu(ah->av.port_pd) >> 24,
+                                  ah->av.gid_index, &sqp->ud_header.grh.source_gid);
+                memcpy(sqp->ud_header.grh.destination_gid.raw,
+                       ah->av.dgid, 16);
+        }
+
+        mlx->flags &= cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE);
+        mlx->flags |= cpu_to_be32((!sqp->qp.ibqp.qp_num ? MLX4_WQE_MLX_VL15 : 0) |
+                                  (sqp->ud_header.lrh.destination_lid ==
+                                   IB_LID_PERMISSIVE ? MLX4_WQE_MLX_SLR : 0) |
+                                  (sqp->ud_header.lrh.service_level << 8));
+        mlx->rlid   = sqp->ud_header.lrh.destination_lid;
+
+        switch (wr->opcode) {
+        case IB_WR_SEND:
+                sqp->ud_header.bth.opcode        = IB_OPCODE_UD_SEND_ONLY;
+                sqp->ud_header.immediate_present = 0;
+                break;
+        case IB_WR_SEND_WITH_IMM:
+                sqp->ud_header.bth.opcode        = IB_OPCODE_UD_SEND_ONLY_WITH_IMMEDIATE;
+                sqp->ud_header.immediate_present = 1;
+                sqp->ud_header.immediate_data    = wr->imm_data;
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        sqp->ud_header.lrh.virtual_lane    = !sqp->qp.ibqp.qp_num ? 15 : 0;
+        if (sqp->ud_header.lrh.destination_lid == IB_LID_PERMISSIVE)
+                sqp->ud_header.lrh.source_lid = IB_LID_PERMISSIVE;
+        sqp->ud_header.bth.solicited_event = !!(wr->send_flags & IB_SEND_SOLICITED);
+        if (!sqp->qp.ibqp.qp_num)
+                ib_get_cached_pkey(ib_dev, sqp->qp.port, sqp->pkey_index, &pkey);
+        else
+                ib_get_cached_pkey(ib_dev, sqp->qp.port, wr->wr.ud.pkey_index, &pkey);
+        sqp->ud_header.bth.pkey = cpu_to_be16(pkey);
+        sqp->ud_header.bth.destination_qpn = cpu_to_be32(wr->wr.ud.remote_qpn);
+        sqp->ud_header.bth.psn = cpu_to_be32((sqp->send_psn++) & ((1 << 24) - 1));
+        sqp->ud_header.deth.qkey = cpu_to_be32(wr->wr.ud.remote_qkey & 0x80000000 ?
+                                               sqp->qkey : wr->wr.ud.remote_qkey);
+        sqp->ud_header.deth.source_qpn = cpu_to_be32(sqp->qp.ibqp.qp_num);
+
+        header_size = ib_ud_header_pack(&sqp->ud_header, sqp->header_buf);
+
+        if (0) {
+                printk(KERN_ERR "built UD header of size %d:\n", header_size);
+                for (i = 0; i < header_size / 4; ++i) {
+                        if (i % 8 == 0)
+                                printk("  [%02x] ", i * 4);
+                        printk(" %08x",
+                               be32_to_cpu(((__be32 *) sqp->header_buf)[i]));
+                        if ((i + 1) % 8 == 0)
+                                printk("\n");
+                }
+                printk("\n");
+        }
+
+        inl->byte_count = cpu_to_be32(1 << 31 | header_size);
+        memcpy(inl + 1, sqp->header_buf, header_size);
+
+        return ALIGN(sizeof (struct mlx4_wqe_inline_seg) + header_size, 16);
+}
+
+static int mlx4_wq_overflow(struct mlx4_ib_wq *wq, int nreq, struct ib_cq *ib_cq)
+{
+        unsigned cur;
+        struct mlx4_ib_cq *cq;
+
+        cur = wq->head - wq->tail;
+        if (likely(cur + nreq < wq->max))
+                return 0;
+
+        cq = to_mcq(ib_cq);
+        spin_lock(&cq->lock);
+        cur = wq->head - wq->tail;
+        spin_unlock(&cq->lock);
+
+        return cur + nreq >= wq->max;
+}
+
+int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
+                      struct ib_send_wr **bad_wr)
+{
+        struct mlx4_ib_qp *qp = to_mqp(ibqp);
+        void *wqe;
+        struct mlx4_wqe_ctrl_seg *ctrl;
+        unsigned long flags;
+        int nreq;
+        int err = 0;
+        int ind;
+        int size;
+        int i;
+
+        spin_lock_irqsave(&qp->rq.lock, flags);
+
+        ind = qp->sq.head;
+
+        for (nreq = 0; wr; ++nreq, wr = wr->next) {
+                if (mlx4_wq_overflow(&qp->sq, nreq, qp->ibqp.send_cq)) {
+                        err = -ENOMEM;
+                        *bad_wr = wr;
+                        goto out;
+                }
+
+                if (unlikely(wr->num_sge > qp->sq.max_gs)) {
+                        err = -EINVAL;
+                        *bad_wr = wr;
+                        goto out;
+                }
+
+                ctrl = wqe = get_send_wqe(qp, ind & (qp->sq.max - 1));
+                qp->sq.wrid[ind & (qp->sq.max - 1)] = wr->wr_id;
+
+                ctrl->srcrb_flags =
+                        (wr->send_flags & IB_SEND_SIGNALED ?
+                         cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE) : 0) |
+                        (wr->send_flags & IB_SEND_SOLICITED ?
+                         cpu_to_be32(MLX4_WQE_CTRL_SOLICITED) : 0) |
+                        qp->sq_signal_bits;
+
+                if (wr->opcode == IB_WR_SEND_WITH_IMM ||
+                    wr->opcode == IB_WR_RDMA_WRITE_WITH_IMM)
+                        ctrl->imm = wr->imm_data;
+                else
+                        ctrl->imm = 0;
+
+                wqe += sizeof *ctrl;
+                size = sizeof *ctrl / 16;
+
+                switch (ibqp->qp_type) {
+                case IB_QPT_RC:
+                case IB_QPT_UC:
+                        switch (wr->opcode) {
+                        case IB_WR_ATOMIC_CMP_AND_SWP:
+                        case IB_WR_ATOMIC_FETCH_AND_ADD:
+                                ((struct mlx4_wqe_raddr_seg *) wqe)->raddr =
+                                        cpu_to_be64(wr->wr.atomic.remote_addr);
+                                ((struct mlx4_wqe_raddr_seg *) wqe)->rkey =
+                                        cpu_to_be32(wr->wr.atomic.rkey);
+                                ((struct mlx4_wqe_raddr_seg *) wqe)->reserved = 0;
+
+                                wqe  += sizeof (struct mlx4_wqe_raddr_seg);
+
+                                if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) {
+                                        ((struct mlx4_wqe_atomic_seg *) wqe)->swap_add =
+                                                cpu_to_be64(wr->wr.atomic.swap);
+                                        ((struct mlx4_wqe_atomic_seg *) wqe)->compare =
+                                                cpu_to_be64(wr->wr.atomic.compare_add);
+                                } else {
+                                        ((struct mlx4_wqe_atomic_seg *) wqe)->swap_add =
+                                                cpu_to_be64(wr->wr.atomic.compare_add);
+                                        ((struct mlx4_wqe_atomic_seg *) wqe)->compare = 0;
+                                }
+
+                                wqe  += sizeof (struct mlx4_wqe_atomic_seg);
+                                size += (sizeof (struct mlx4_wqe_raddr_seg) +
+                                         sizeof (struct mlx4_wqe_atomic_seg)) / 16;
+
+                                break;
+
+                        case IB_WR_RDMA_READ:
+                        case IB_WR_RDMA_WRITE:
+                        case IB_WR_RDMA_WRITE_WITH_IMM:
+                                ((struct mlx4_wqe_raddr_seg *) wqe)->raddr =
+                                        cpu_to_be64(wr->wr.rdma.remote_addr);
+                                ((struct mlx4_wqe_raddr_seg *) wqe)->rkey =
+                                        cpu_to_be32(wr->wr.rdma.rkey);
+                                ((struct mlx4_wqe_raddr_seg *) wqe)->reserved = 0;
+
+                                wqe  += sizeof (struct mlx4_wqe_raddr_seg);
+                                size += sizeof (struct mlx4_wqe_raddr_seg) / 16;
+
+                                break;
+
+                        default:
+                                /* No extra segments required for sends */
+                                break;
+                        }
+                        break;
+
+                case IB_QPT_UD:
+                        memcpy(((struct mlx4_wqe_datagram_seg *) wqe)->av,
+                               &to_mah(wr->wr.ud.ah)->av, sizeof (struct mlx4_av));
+                        ((struct mlx4_wqe_datagram_seg *) wqe)->dqpn =
+                                cpu_to_be32(wr->wr.ud.remote_qpn);
+                        ((struct mlx4_wqe_datagram_seg *) wqe)->qkey =
+                                cpu_to_be32(wr->wr.ud.remote_qkey);
+
+                        wqe  += sizeof (struct mlx4_wqe_datagram_seg);
+                        size += sizeof (struct mlx4_wqe_datagram_seg) / 16;
+                        break;
+
+                case IB_QPT_SMI:
+                case IB_QPT_GSI:
+                        err = build_mlx_header(to_msqp(qp), wr, ctrl);
+                        if (err < 0) {
+                                *bad_wr = wr;
+                                goto out;
+                        }
+                        wqe  += err;
+                        size += err / 16;
+
+                        err = 0;
+                        break;
+
+                default:
+                        break;
+                }
+
+                for (i = 0; i < wr->num_sge; ++i) {
+                        ((struct mlx4_wqe_data_seg *) wqe)->byte_count =
+                                cpu_to_be32(wr->sg_list[i].length);
+                        ((struct mlx4_wqe_data_seg *) wqe)->lkey =
+                                cpu_to_be32(wr->sg_list[i].lkey);
+                        ((struct mlx4_wqe_data_seg *) wqe)->addr =
+                                cpu_to_be64(wr->sg_list[i].addr);
+
+                        wqe  += sizeof (struct mlx4_wqe_data_seg);
+                        size += sizeof (struct mlx4_wqe_data_seg) / 16;
+                }
+
+                /* Add one more inline data segment for ICRC for MLX sends */
+                if (qp->ibqp.qp_type == IB_QPT_SMI || qp->ibqp.qp_type == IB_QPT_GSI) {
+                        ((struct mlx4_wqe_inline_seg *) wqe)->byte_count =
+                                cpu_to_be32((1 << 31) | 4);
+                        ((u32 *) wqe)[1] = 0;
+                        wqe  += sizeof (struct mlx4_wqe_data_seg);
+                        size += sizeof (struct mlx4_wqe_data_seg) / 16;
+                }
+
+                ctrl->fence_size = (wr->send_flags & IB_SEND_FENCE ?
+                                    MLX4_WQE_CTRL_FENCE : 0) | size;
+
+                /*
+                 * Make sure descriptor is fully written before
+                 * setting ownership bit (because HW can start
+                 * executing as soon as we do).
+                 */
+                wmb();
+
+                if (wr->opcode < 0 || wr->opcode > ARRAY_SIZE(mlx4_ib_opcode)) {
+                        err = -EINVAL;
+                        goto out;
+                }
+
+                ctrl->owner_opcode = mlx4_ib_opcode[wr->opcode] |
+                        (ind & qp->sq.max ? cpu_to_be32(1 << 31) : 0);
+
+                ++ind;
+        }
+
+out:
+        if (likely(nreq)) {
+                qp->sq.head += nreq;
+
+                /*
+                 * Make sure that descriptors are written before
+                 * doorbell record.
+                 */
+                wmb();
+
+                writel(qp->doorbell_qpn,
+                       to_mdev(ibqp->device)->uar_map + MLX4_SEND_DOORBELL);
+
+                /*
+                 * Make sure doorbells don't leak out of SQ spinlock
+                 * and reach the HCA out of order.
+                 */
+                mmiowb();
+        }
+
+        spin_unlock_irqrestore(&qp->rq.lock, flags);
+
+        return err;
+}
+
+int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
+                      struct ib_recv_wr **bad_wr)
+{
+        struct mlx4_ib_qp *qp = to_mqp(ibqp);
+        struct mlx4_wqe_data_seg *scat;
+        unsigned long flags;
+        int err = 0;
+        int nreq;
+        int ind;
+        int i;
+
+        spin_lock_irqsave(&qp->rq.lock, flags);
+
+        ind = qp->rq.head & (qp->rq.max - 1);
+
+        for (nreq = 0; wr; ++nreq, wr = wr->next) {
+                if (mlx4_wq_overflow(&qp->rq, nreq, qp->ibqp.send_cq)) {
+                        err = -ENOMEM;
+                        *bad_wr = wr;
+                        goto out;
+                }
+
+                if (unlikely(wr->num_sge > qp->rq.max_gs)) {
+                        err = -EINVAL;
+                        *bad_wr = wr;
+                        goto out;
+                }
+
+                scat = get_recv_wqe(qp, ind);
+
+                for (i = 0; i < wr->num_sge; ++i) {
+                        scat[i].byte_count = cpu_to_be32(wr->sg_list[i].length);
+                        scat[i].lkey       = cpu_to_be32(wr->sg_list[i].lkey);
+                        scat[i].addr       = cpu_to_be64(wr->sg_list[i].addr);
+                }
+
+                if (i < qp->rq.max_gs) {
+                        scat[i].byte_count = 0;
+                        scat[i].lkey       = cpu_to_be32(MLX4_INVALID_LKEY);
+                        scat[i].addr       = 0;
+                }
+
+                qp->rq.wrid[ind] = wr->wr_id;
+
+                ind = (ind + 1) & (qp->rq.max - 1);
+        }
+
+out:
+        if (likely(nreq)) {
+                qp->rq.head += nreq;
+
+                /*
+                 * Make sure that descriptors are written before
+                 * doorbell record.
+                 */
+                wmb();
+
+                *qp->db.db = cpu_to_be32(qp->rq.head & 0xffff);
+        }
+
+        spin_unlock_irqrestore(&qp->rq.lock, flags);
+
+        return err;
+}
diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c
new file mode 100644
index 000000000000..42ab4a801d6a
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/srq.c
@@ -0,0 +1,334 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/mlx4/qp.h>
+#include <linux/mlx4/srq.h>
+
+#include "mlx4_ib.h"
+#include "user.h"
+
+static void *get_wqe(struct mlx4_ib_srq *srq, int n)
+{
+        int offset = n << srq->msrq.wqe_shift;
+
+        if (srq->buf.nbufs == 1)
+                return srq->buf.u.direct.buf + offset;
+        else
+                return srq->buf.u.page_list[offset >> PAGE_SHIFT].buf +
+                        (offset & (PAGE_SIZE - 1));
+}
+
+static void mlx4_ib_srq_event(struct mlx4_srq *srq, enum mlx4_event type)
+{
+        struct ib_event event;
+        struct ib_srq *ibsrq = &to_mibsrq(srq)->ibsrq;
+
+        if (ibsrq->event_handler) {
+                event.device      = ibsrq->device;
+                event.element.srq = ibsrq;
+                switch (type) {
+                case MLX4_EVENT_TYPE_SRQ_LIMIT:
+                        event.event = IB_EVENT_SRQ_LIMIT_REACHED;
+                        break;
+                case MLX4_EVENT_TYPE_SRQ_CATAS_ERROR:
+                        event.event = IB_EVENT_SRQ_ERR;
+                        break;
+                default:
+                        printk(KERN_WARNING "mlx4_ib: Unexpected event type %d "
+                               "on SRQ %06x\n", type, srq->srqn);
+                        return;
+                }
+
+                ibsrq->event_handler(&event, ibsrq->srq_context);
+        }
+}
+
+struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
+                                  struct ib_srq_init_attr *init_attr,
+                                  struct ib_udata *udata)
+{
+        struct mlx4_ib_dev *dev = to_mdev(pd->device);
+        struct mlx4_ib_srq *srq;
+        struct mlx4_wqe_srq_next_seg *next;
+        int desc_size;
+        int buf_size;
+        int err;
+        int i;
+
+        /* Sanity check SRQ size before proceeding */
+        if (init_attr->attr.max_wr  >= dev->dev->caps.max_srq_wqes ||
+            init_attr->attr.max_sge >  dev->dev->caps.max_srq_sge)
+                return ERR_PTR(-EINVAL);
+
+        srq = kmalloc(sizeof *srq, GFP_KERNEL);
+        if (!srq)
+                return ERR_PTR(-ENOMEM);
+
+        mutex_init(&srq->mutex);
+        spin_lock_init(&srq->lock);
+        srq->msrq.max    = roundup_pow_of_two(init_attr->attr.max_wr + 1);
+        srq->msrq.max_gs = init_attr->attr.max_sge;
+
+        desc_size = max(32UL,
+                        roundup_pow_of_two(sizeof (struct mlx4_wqe_srq_next_seg) +
+                                           srq->msrq.max_gs *
+                                           sizeof (struct mlx4_wqe_data_seg)));
+        srq->msrq.wqe_shift = ilog2(desc_size);
+
+        buf_size = srq->msrq.max * desc_size;
+
+        if (pd->uobject) {
+                struct mlx4_ib_create_srq ucmd;
+
+                if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
+                        err = -EFAULT;
+                        goto err_srq;
+                }
+
+                srq->umem = ib_umem_get(pd->uobject->context, ucmd.buf_addr,
+                                        buf_size, 0);
+                if (IS_ERR(srq->umem)) {
+                        err = PTR_ERR(srq->umem);
+                        goto err_srq;
+                }
+
+                err = mlx4_mtt_init(dev->dev, ib_umem_page_count(srq->umem),
+                                    ilog2(srq->umem->page_size), &srq->mtt);
+                if (err)
+                        goto err_buf;
+
+                err = mlx4_ib_umem_write_mtt(dev, &srq->mtt, srq->umem);
+                if (err)
+                        goto err_mtt;
+
+                err = mlx4_ib_db_map_user(to_mucontext(pd->uobject->context),
+                                          ucmd.db_addr, &srq->db);
+                if (err)
+                        goto err_mtt;
+        } else {
+                err = mlx4_ib_db_alloc(dev, &srq->db, 0);
+                if (err)
+                        goto err_srq;
+
+                *srq->db.db = 0;
+
+                if (mlx4_buf_alloc(dev->dev, buf_size, PAGE_SIZE * 2, &srq->buf)) {
+                        err = -ENOMEM;
+                        goto err_db;
+                }
+
+                srq->head    = 0;
+                srq->tail    = srq->msrq.max - 1;
+                srq->wqe_ctr = 0;
+
+                for (i = 0; i < srq->msrq.max; ++i) {
+                        next = get_wqe(srq, i);
+                        next->next_wqe_index =
+                                cpu_to_be16((i + 1) & (srq->msrq.max - 1));
+                }
+
+                err = mlx4_mtt_init(dev->dev, srq->buf.npages, srq->buf.page_shift,
+                                    &srq->mtt);
+                if (err)
+                        goto err_buf;
+
+                err = mlx4_buf_write_mtt(dev->dev, &srq->mtt, &srq->buf);
+                if (err)
+                        goto err_mtt;
+
+                srq->wrid = kmalloc(srq->msrq.max * sizeof (u64), GFP_KERNEL);
+                if (!srq->wrid) {
+                        err = -ENOMEM;
+                        goto err_mtt;
+                }
+        }
+
+        err = mlx4_srq_alloc(dev->dev, to_mpd(pd)->pdn, &srq->mtt,
+                             srq->db.dma, &srq->msrq);
+        if (err)
+                goto err_wrid;
+
+        srq->msrq.event = mlx4_ib_srq_event;
+
+        if (pd->uobject)
+                if (ib_copy_to_udata(udata, &srq->msrq.srqn, sizeof (__u32))) {
+                        err = -EFAULT;
+                        goto err_wrid;
+                }
+
+        init_attr->attr.max_wr = srq->msrq.max - 1;
+
+        return &srq->ibsrq;
+
+err_wrid:
+        if (pd->uobject)
+                mlx4_ib_db_unmap_user(to_mucontext(pd->uobject->context), &srq->db);
+        else
+                kfree(srq->wrid);
+
+err_mtt:
+        mlx4_mtt_cleanup(dev->dev, &srq->mtt);
+
+err_buf:
+        if (pd->uobject)
+                ib_umem_release(srq->umem);
+        else
+                mlx4_buf_free(dev->dev, buf_size, &srq->buf);
+
+err_db:
+        if (!pd->uobject)
+                mlx4_ib_db_free(dev, &srq->db);
+
+err_srq:
+        kfree(srq);
+
+        return ERR_PTR(err);
+}
+
+int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
+                       enum ib_srq_attr_mask attr_mask, struct ib_udata *udata)
+{
+        struct mlx4_ib_dev *dev = to_mdev(ibsrq->device);
+        struct mlx4_ib_srq *srq = to_msrq(ibsrq);
+        int ret;
+
+        /* We don't support resizing SRQs (yet?) */
+        if (attr_mask & IB_SRQ_MAX_WR)
+                return -EINVAL;
+
+        if (attr_mask & IB_SRQ_LIMIT) {
+                if (attr->srq_limit >= srq->msrq.max)
+                        return -EINVAL;
+
+                mutex_lock(&srq->mutex);
+                ret = mlx4_srq_arm(dev->dev, &srq->msrq, attr->srq_limit);
+                mutex_unlock(&srq->mutex);
+
+                if (ret)
+                        return ret;
+        }
+
+        return 0;
+}
+
+int mlx4_ib_destroy_srq(struct ib_srq *srq)
+{
+        struct mlx4_ib_dev *dev = to_mdev(srq->device);
+        struct mlx4_ib_srq *msrq = to_msrq(srq);
+
+        mlx4_srq_free(dev->dev, &msrq->msrq);
+        mlx4_mtt_cleanup(dev->dev, &msrq->mtt);
+
+        if (srq->uobject) {
+                mlx4_ib_db_unmap_user(to_mucontext(srq->uobject->context), &msrq->db);
+                ib_umem_release(msrq->umem);
+        } else {
+                kfree(msrq->wrid);
+                mlx4_buf_free(dev->dev, msrq->msrq.max << msrq->msrq.wqe_shift,
+                              &msrq->buf);
+                mlx4_ib_db_free(dev, &msrq->db);
+        }
+
+        kfree(msrq);
+
+        return 0;
+}
+
+void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index)
+{
+        struct mlx4_wqe_srq_next_seg *next;
+
+        /* always called with interrupts disabled. */
+        spin_lock(&srq->lock);
+
+        next = get_wqe(srq, srq->tail);
+        next->next_wqe_index = cpu_to_be16(wqe_index);
+        srq->tail = wqe_index;
+
+        spin_unlock(&srq->lock);
+}
+
+int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
+                          struct ib_recv_wr **bad_wr)
+{
+        struct mlx4_ib_srq *srq = to_msrq(ibsrq);
+        struct mlx4_wqe_srq_next_seg *next;
+        struct mlx4_wqe_data_seg *scat;
+        unsigned long flags;
+        int err = 0;
+        int nreq;
+        int i;
+
+        spin_lock_irqsave(&srq->lock, flags);
+
+        for (nreq = 0; wr; ++nreq, wr = wr->next) {
+                if (unlikely(wr->num_sge > srq->msrq.max_gs)) {
+                        err = -EINVAL;
+                        *bad_wr = wr;
+                        break;
+                }
+
+                srq->wrid[srq->head] = wr->wr_id;
+
+                next      = get_wqe(srq, srq->head);
+                srq->head = be16_to_cpu(next->next_wqe_index);
+                scat      = (struct mlx4_wqe_data_seg *) (next + 1);
+
+                for (i = 0; i < wr->num_sge; ++i) {
+                        scat[i].byte_count = cpu_to_be32(wr->sg_list[i].length);
+                        scat[i].lkey       = cpu_to_be32(wr->sg_list[i].lkey);
+                        scat[i].addr       = cpu_to_be64(wr->sg_list[i].addr);
+                }
+
+                if (i < srq->msrq.max_gs) {
+                        scat[i].byte_count = 0;
+                        scat[i].lkey       = cpu_to_be32(MLX4_INVALID_LKEY);
+                        scat[i].addr       = 0;
+                }
+        }
+
+        if (likely(nreq)) {
+                srq->wqe_ctr += nreq;
+
+                /*
+                 * Make sure that descriptors are written before
+                 * doorbell record.
+                 */
+                wmb();
+
+                *srq->db.db = cpu_to_be32(srq->wqe_ctr);
+        }
+
+        spin_unlock_irqrestore(&srq->lock, flags);
+
+        return err;
+}
diff --git a/drivers/infiniband/hw/mlx4/user.h b/drivers/infiniband/hw/mlx4/user.h
new file mode 100644
index 000000000000..5b8eddc9fa83
--- /dev/null
+++ b/drivers/infiniband/hw/mlx4/user.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_IB_USER_H
+#define MLX4_IB_USER_H
+
+#include <linux/types.h>
+
+/*
+ * Increment this value if any changes that break userspace ABI
+ * compatibility are made.
+ */
+#define MLX4_IB_UVERBS_ABI_VERSION      1
+
+/*
+ * Make sure that all structs defined in this file remain laid out so
+ * that they pack the same way on 32-bit and 64-bit architectures (to
+ * avoid incompatibility between 32-bit userspace and 64-bit kernels).
+ * In particular do not use pointer types -- pass pointers in __u64
+ * instead.
+ */
+
+struct mlx4_ib_alloc_ucontext_resp {
+        __u32   qp_tab_size;
+        __u16   bf_reg_size;
+        __u16   bf_regs_per_page;
+};
+
+struct mlx4_ib_alloc_pd_resp {
+        __u32   pdn;
+        __u32   reserved;
+};
+
+struct mlx4_ib_create_cq {
+        __u64   buf_addr;
+        __u64   db_addr;
+};
+
+struct mlx4_ib_create_cq_resp {
+        __u32   cqn;
+        __u32   reserved;
+};
+
+struct mlx4_ib_resize_cq {
+        __u64   buf_addr;
+};
+
+struct mlx4_ib_create_srq {
+        __u64   buf_addr;
+        __u64   db_addr;
+};
+
+struct mlx4_ib_create_srq_resp {
+        __u32   srqn;
+        __u32   reserved;
+};
+
+struct mlx4_ib_create_qp {
+        __u64   buf_addr;
+        __u64   db_addr;
+};
+
+#endif /* MLX4_IB_USER_H */
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 1c05486c3c68..6bcde1cb9688 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -37,6 +37,7 @@
  */
 
 #include <rdma/ib_smi.h>
+#include <rdma/ib_umem.h>
 #include <rdma/ib_user_verbs.h>
 #include <linux/mm.h>
 
@@ -908,6 +909,8 @@ static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc)
                 return ERR_PTR(err);
         }
 
+        mr->umem = NULL;
+
         return &mr->ibmr;
 }
 
@@ -1003,11 +1006,13 @@ static struct ib_mr *mthca_reg_phys_mr(struct ib_pd       *pd,
         }
 
         kfree(page_list);
+        mr->umem = NULL;
+
         return &mr->ibmr;
 }
 
-static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
-                                       int acc, struct ib_udata *udata)
+static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
+                                       u64 virt, int acc, struct ib_udata *udata)
 {
         struct mthca_dev *dev = to_mdev(pd->device);
         struct ib_umem_chunk *chunk;
@@ -1018,20 +1023,26 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
         int err = 0;
         int write_mtt_size;
 
-        shift = ffs(region->page_size) - 1;
-
         mr = kmalloc(sizeof *mr, GFP_KERNEL);
         if (!mr)
                 return ERR_PTR(-ENOMEM);
 
+        mr->umem = ib_umem_get(pd->uobject->context, start, length, acc);
+        if (IS_ERR(mr->umem)) {
+                err = PTR_ERR(mr->umem);
+                goto err;
+        }
+
+        shift = ffs(mr->umem->page_size) - 1;
+
         n = 0;
-        list_for_each_entry(chunk, &region->chunk_list, list)
+        list_for_each_entry(chunk, &mr->umem->chunk_list, list)
                 n += chunk->nents;
 
         mr->mtt = mthca_alloc_mtt(dev, n);
         if (IS_ERR(mr->mtt)) {
                 err = PTR_ERR(mr->mtt);
-                goto err;
+                goto err_umem;
         }
 
         pages = (u64 *) __get_free_page(GFP_KERNEL);
@@ -1044,12 +1055,12 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
 
         write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages));
 
-        list_for_each_entry(chunk, &region->chunk_list, list)
+        list_for_each_entry(chunk, &mr->umem->chunk_list, list)
                 for (j = 0; j < chunk->nmap; ++j) {
                         len = sg_dma_len(&chunk->page_list[j]) >> shift;
                         for (k = 0; k < len; ++k) {
                                 pages[i++] = sg_dma_address(&chunk->page_list[j]) +
-                                        region->page_size * k;
+                                        mr->umem->page_size * k;
                                 /*
                                  * Be friendly to write_mtt and pass it chunks
                                  * of appropriate size.
@@ -1071,8 +1082,8 @@ mtt_done:
         if (err)
                 goto err_mtt;
 
-        err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, region->virt_base,
-                             region->length, convert_access(acc), mr);
+        err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length,
+                             convert_access(acc), mr);
 
         if (err)
                 goto err_mtt;
@@ -1082,6 +1093,9 @@ mtt_done:
 err_mtt:
         mthca_free_mtt(dev, mr->mtt);
 
+err_umem:
+        ib_umem_release(mr->umem);
+
 err:
         kfree(mr);
         return ERR_PTR(err);
@@ -1090,8 +1104,12 @@ err:
 static int mthca_dereg_mr(struct ib_mr *mr)
 {
         struct mthca_mr *mmr = to_mmr(mr);
+
         mthca_free_mr(to_mdev(mr->device), mmr);
+        if (mmr->umem)
+                ib_umem_release(mmr->umem);
         kfree(mmr);
+
         return 0;
 }
 
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h
index 1d266ac2e094..262616c8ebb6 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.h
+++ b/drivers/infiniband/hw/mthca/mthca_provider.h
@@ -73,6 +73,7 @@ struct mthca_mtt;
 
 struct mthca_mr {
         struct ib_mr      ibmr;
+        struct ib_umem   *umem;
         struct mthca_mtt *mtt;
 };
 
diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index 0e9b69535ad6..f814fb3a469d 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "Input device support"
+        depends on !S390
 
 config INPUT
         tristate "Generic input layer (needed for keyboard, mouse, ...)" if EMBEDDED
diff --git a/drivers/isdn/Kconfig b/drivers/isdn/Kconfig
index c90afeea54aa..d42fe89cddf6 100644
--- a/drivers/isdn/Kconfig
+++ b/drivers/isdn/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "ISDN subsystem"
+        depends on !S390
 
 config ISDN
         tristate "ISDN support"
diff --git a/drivers/isdn/capi/Kconfig b/drivers/isdn/capi/Kconfig
index c921d6c522f5..c92f9d764fce 100644
--- a/drivers/isdn/capi/Kconfig
+++ b/drivers/isdn/capi/Kconfig
@@ -17,7 +17,7 @@ config CAPI_TRACE
         help
           If you say Y here, the kernelcapi driver can make verbose traces
           of CAPI messages. This feature can be enabled/disabled via IOCTL for
-          every controler (default disabled).
+          every controller (default disabled).
           This will increase the size of the kernelcapi module by 20 KB.
           If unsure, say Y.
 
diff --git a/drivers/isdn/hardware/eicon/divasync.h b/drivers/isdn/hardware/eicon/divasync.h
index af3eb9e795b5..85784a7ffb25 100644
--- a/drivers/isdn/hardware/eicon/divasync.h
+++ b/drivers/isdn/hardware/eicon/divasync.h
@@ -216,7 +216,7 @@ typedef struct
 #define SERIAL_HOOK_RING 0x85
 #define SERIAL_HOOK_DETACH 0x8f
  unsigned char Flags;           /* function refinements   */
- /* parameters passed by the the ATTACH request      */
+ /* parameters passed by the ATTACH request      */
  SERIAL_INT_CB InterruptHandler; /* called on each interrupt  */
  SERIAL_DPC_CB DeferredHandler; /* called on hook state changes */
  void   *HandlerContext; /* context for both handlers */
diff --git a/drivers/isdn/hisax/hfc_usb.c b/drivers/isdn/hisax/hfc_usb.c
index 99e70d4103b6..1f18f1993387 100644
--- a/drivers/isdn/hisax/hfc_usb.c
+++ b/drivers/isdn/hisax/hfc_usb.c
@@ -1217,11 +1217,11 @@ usb_init(hfcusb_data * hfc)
         /* aux = output, reset off */
         write_usb(hfc, HFCUSB_CIRM, 0x10);
 
-        /* set USB_SIZE to match the the wMaxPacketSize for INT or BULK transfers */
+        /* set USB_SIZE to match the wMaxPacketSize for INT or BULK transfers */
         write_usb(hfc, HFCUSB_USB_SIZE,
                   (hfc->packet_size / 8) | ((hfc->packet_size / 8) << 4));
 
-        /* set USB_SIZE_I to match the the wMaxPacketSize for ISO transfers */
+        /* set USB_SIZE_I to match the wMaxPacketSize for ISO transfers */
         write_usb(hfc, HFCUSB_USB_SIZE_I, hfc->iso_packet_size);
 
         /* enable PCM/GCI master mode */
diff --git a/drivers/kvm/Kconfig b/drivers/kvm/Kconfig
index 703cc88d1ef9..e8e37d826478 100644
--- a/drivers/kvm/Kconfig
+++ b/drivers/kvm/Kconfig
@@ -2,6 +2,7 @@
 # KVM configuration
 #
 menu "Virtualization"
+        depends on X86
 
 config KVM
         tristate "Kernel-based Virtual Machine (KVM) support"
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index c8b8cfa332bb..0d892600ff00 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -2889,7 +2889,9 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 
         switch (val) {
         case CPU_DOWN_PREPARE:
+        case CPU_DOWN_PREPARE_FROZEN:
         case CPU_UP_CANCELED:
+        case CPU_UP_CANCELED_FROZEN:
                 printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
                        cpu);
                 decache_vcpus_on_cpu(cpu);
@@ -2897,6 +2899,7 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
                                          NULL, 0, 1);
                 break;
         case CPU_ONLINE:
+        case CPU_ONLINE_FROZEN:
                 printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
                        cpu);
                 smp_call_function_single(cpu, kvm_arch_ops->hardware_enable,
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 80acd08f0e97..87d2046f866c 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -1,5 +1,6 @@
 
 menu "LED devices"
+        depends on HAS_IOMEM
 
 config NEW_LEDS
         bool "LED Support"
diff --git a/drivers/leds/leds-h1940.c b/drivers/leds/leds-h1940.c
index 1d49d2ade557..677c99325be5 100644
--- a/drivers/leds/leds-h1940.c
+++ b/drivers/leds/leds-h1940.c
@@ -1,5 +1,5 @@
 /*
- * drivers/leds/h1940-leds.c
+ * drivers/leds/leds-h1940.c
  * Copyright (c) Arnaud Patard <arnaud.patard@rtp-net.org>
  *
  * This file is subject to the terms and conditions of the GNU General Public
diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index a32c91e27b3c..58926da0ae18 100644
--- a/drivers/macintosh/Kconfig
+++ b/drivers/macintosh/Kconfig
@@ -237,7 +237,7 @@ config PMAC_RACKMETER
         tristate "Support for Apple XServe front panel LEDs"
         depends on PPC_PMAC
         help
-          This driver procides some support to control the front panel
+          This driver provides some support to control the front panel
           blue LEDs "vu-meter" of the XServer macs.
 
 endif # MACINTOSH_DRIVERS
diff --git a/drivers/macintosh/mediabay.c b/drivers/macintosh/mediabay.c
index 0acf2f7fd9d7..c803d2bba65d 100644
--- a/drivers/macintosh/mediabay.c
+++ b/drivers/macintosh/mediabay.c
@@ -563,7 +563,7 @@ static void media_bay_step(int i)
                                 ide_init_hwif_ports(&hw, (unsigned long) bay->cd_base, (unsigned long) 0, NULL);
                                 hw.irq = bay->cd_irq;
                                 hw.chipset = ide_pmac;
-                                bay->cd_index = ide_register_hw(&hw, NULL);
+                                bay->cd_index = ide_register_hw(&hw, 0, NULL);
                                 pmu_resume();
                         }
                         if (bay->cd_index == -1) {
diff --git a/drivers/mca/mca-bus.c b/drivers/mca/mca-bus.c
index da862e4632dd..67b8e9453b19 100644
--- a/drivers/mca/mca-bus.c
+++ b/drivers/mca/mca-bus.c
@@ -47,19 +47,25 @@ static int mca_bus_match (struct device *dev, struct device_driver *drv)
 {
         struct mca_device *mca_dev = to_mca_device (dev);
         struct mca_driver *mca_drv = to_mca_driver (drv);
-        const short *mca_ids = mca_drv->id_table;
-        int i;
-
-        if (!mca_ids)
-                return 0;
-
-        for(i = 0; mca_ids[i]; i++) {
-                if (mca_ids[i] == mca_dev->pos_id) {
-                        mca_dev->index = i;
-                        return 1;
+        const unsigned short *mca_ids = mca_drv->id_table;
+        int i = 0;
+
+        if (mca_ids) {
+                for(i = 0; mca_ids[i]; i++) {
+                        if (mca_ids[i] == mca_dev->pos_id) {
+                                mca_dev->index = i;
+                                return 1;
+                        }
                 }
         }
-
+        /* If the integrated id is present, treat it as though it were an
+         * additional id in the id_table (it can't be because by definition,
+         * integrated id's overflow a short */
+        if (mca_drv->integrated_id && mca_dev->pos_id ==
+            mca_drv->integrated_id) {
+                mca_dev->index = i;
+                return 1;
+        }
         return 0;
 }
 
diff --git a/drivers/mca/mca-driver.c b/drivers/mca/mca-driver.c
index 2223466b3d8a..32cd39bcc715 100644
--- a/drivers/mca/mca-driver.c
+++ b/drivers/mca/mca-driver.c
@@ -36,12 +36,25 @@ int mca_register_driver(struct mca_driver *mca_drv)
                 mca_drv->driver.bus = &mca_bus_type;
                 if ((r = driver_register(&mca_drv->driver)) < 0)
                         return r;
+                mca_drv->integrated_id = 0;
         }
 
         return 0;
 }
 EXPORT_SYMBOL(mca_register_driver);
 
+int mca_register_driver_integrated(struct mca_driver *mca_driver,
+                                   int integrated_id)
+{
+        int r = mca_register_driver(mca_driver);
+
+        if (!r)
+                mca_driver->integrated_id = integrated_id;
+
+        return r;
+}
+EXPORT_SYMBOL(mca_register_driver_integrated);
+
 void mca_unregister_driver(struct mca_driver *mca_drv)
 {
         if (MCA_bus)
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 4540ade6b6b5..7df934d69134 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -262,6 +262,15 @@ config DM_MULTIPATH_EMC
         ---help---
           Multipath support for EMC CX/AX series hardware.
 
+config DM_DELAY
+        tristate "I/O delaying target (EXPERIMENTAL)"
+        depends on BLK_DEV_DM && EXPERIMENTAL
+        ---help---
+        A target that delays reads and/or writes and can send
+        them to different devices.  Useful for testing.
+
+        If unsure, say N.
+
 endmenu
 
 endif
diff --git a/drivers/md/Makefile b/drivers/md/Makefile
index 34957a68d921..38754084eac7 100644
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_MD_FAULTY)		+= faulty.o
 obj-$(CONFIG_BLK_DEV_MD)        += md-mod.o
 obj-$(CONFIG_BLK_DEV_DM)        += dm-mod.o
 obj-$(CONFIG_DM_CRYPT)          += dm-crypt.o
+obj-$(CONFIG_DM_DELAY)          += dm-delay.o
 obj-$(CONFIG_DM_MULTIPATH)      += dm-multipath.o dm-round-robin.o
 obj-$(CONFIG_DM_MULTIPATH_EMC)  += dm-emc.o
 obj-$(CONFIG_DM_SNAPSHOT)       += dm-snapshot.o
diff --git a/drivers/md/dm-bio-list.h b/drivers/md/dm-bio-list.h
index da4349649f7f..c6be88826fae 100644
--- a/drivers/md/dm-bio-list.h
+++ b/drivers/md/dm-bio-list.h
@@ -8,17 +8,43 @@
 #define DM_BIO_LIST_H
 
 #include <linux/bio.h>
+#include <linux/prefetch.h>
 
 struct bio_list {
         struct bio *head;
         struct bio *tail;
 };
 
+static inline int bio_list_empty(const struct bio_list *bl)
+{
+        return bl->head == NULL;
+}
+
+#define BIO_LIST_INIT { .head = NULL, .tail = NULL }
+
+#define BIO_LIST(bl) \
+        struct bio_list bl = BIO_LIST_INIT
+
 static inline void bio_list_init(struct bio_list *bl)
 {
         bl->head = bl->tail = NULL;
 }
 
+#define bio_list_for_each(bio, bl) \
+        for (bio = (bl)->head; bio && ({ prefetch(bio->bi_next); 1; }); \
+             bio = bio->bi_next)
+
+static inline unsigned bio_list_size(const struct bio_list *bl)
+{
+        unsigned sz = 0;
+        struct bio *bio;
+
+        bio_list_for_each(bio, bl)
+                sz++;
+
+        return sz;
+}
+
 static inline void bio_list_add(struct bio_list *bl, struct bio *bio)
 {
         bio->bi_next = NULL;
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index d8121234c347..7b0fcfc9eaa5 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -33,7 +33,6 @@
 struct crypt_io {
         struct dm_target *target;
         struct bio *base_bio;
-        struct bio *first_clone;
         struct work_struct work;
         atomic_t pending;
         int error;
@@ -107,6 +106,8 @@ struct crypt_config {
 
 static struct kmem_cache *_crypt_io_pool;
 
+static void clone_init(struct crypt_io *, struct bio *);
+
 /*
  * Different IV generation algorithms:
  *
@@ -120,6 +121,9 @@ static struct kmem_cache *_crypt_io_pool;
  * benbi: the 64-bit "big-endian 'narrow block'-count", starting at 1
  *        (needed for LRW-32-AES and possible other narrow block modes)
  *
+ * null: the initial vector is always zero.  Provides compatibility with
+ *       obsolete loop_fish2 devices.  Do not use for new devices.
+ *
  * plumb: unimplemented, see:
  * http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/454
  */
@@ -256,6 +260,13 @@ static int crypt_iv_benbi_gen(struct crypt_config *cc, u8 *iv, sector_t sector)
         return 0;
 }
 
+static int crypt_iv_null_gen(struct crypt_config *cc, u8 *iv, sector_t sector)
+{
+        memset(iv, 0, cc->iv_size);
+
+        return 0;
+}
+
 static struct crypt_iv_operations crypt_iv_plain_ops = {
         .generator = crypt_iv_plain_gen
 };
@@ -272,6 +283,10 @@ static struct crypt_iv_operations crypt_iv_benbi_ops = {
         .generator = crypt_iv_benbi_gen
 };
 
+static struct crypt_iv_operations crypt_iv_null_ops = {
+        .generator = crypt_iv_null_gen
+};
+
 static int
 crypt_convert_scatterlist(struct crypt_config *cc, struct scatterlist *out,
                           struct scatterlist *in, unsigned int length,
@@ -378,36 +393,21 @@ static int crypt_convert(struct crypt_config *cc,
  * This should never violate the device limitations
  * May return a smaller bio when running out of pages
  */
-static struct bio *
-crypt_alloc_buffer(struct crypt_config *cc, unsigned int size,
-                   struct bio *base_bio, unsigned int *bio_vec_idx)
+static struct bio *crypt_alloc_buffer(struct crypt_io *io, unsigned int size)
 {
+        struct crypt_config *cc = io->target->private;
         struct bio *clone;
         unsigned int nr_iovecs = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
         gfp_t gfp_mask = GFP_NOIO | __GFP_HIGHMEM;
         unsigned int i;
 
-        if (base_bio) {
-                clone = bio_alloc_bioset(GFP_NOIO, base_bio->bi_max_vecs, cc->bs);
-                __bio_clone(clone, base_bio);
-        } else
-                clone = bio_alloc_bioset(GFP_NOIO, nr_iovecs, cc->bs);
-
+        clone = bio_alloc_bioset(GFP_NOIO, nr_iovecs, cc->bs);
         if (!clone)
                 return NULL;
 
-        clone->bi_destructor = dm_crypt_bio_destructor;
-
-        /* if the last bio was not complete, continue where that one ended */
-        clone->bi_idx = *bio_vec_idx;
-        clone->bi_vcnt = *bio_vec_idx;
-        clone->bi_size = 0;
-        clone->bi_flags &= ~(1 << BIO_SEG_VALID);
-
-        /* clone->bi_idx pages have already been allocated */
-        size -= clone->bi_idx * PAGE_SIZE;
+        clone_init(io, clone);
 
-        for (i = clone->bi_idx; i < nr_iovecs; i++) {
+        for (i = 0; i < nr_iovecs; i++) {
                 struct bio_vec *bv = bio_iovec_idx(clone, i);
 
                 bv->bv_page = mempool_alloc(cc->page_pool, gfp_mask);
@@ -419,7 +419,7 @@ crypt_alloc_buffer(struct crypt_config *cc, unsigned int size,
                  * return a partially allocated bio, the caller will then try
                  * to allocate additional bios while submitting this partial bio
                  */
-                if ((i - clone->bi_idx) == (MIN_BIO_PAGES - 1))
+                if (i == (MIN_BIO_PAGES - 1))
                         gfp_mask = (gfp_mask | __GFP_NOWARN) & ~__GFP_WAIT;
 
                 bv->bv_offset = 0;
@@ -438,12 +438,6 @@ crypt_alloc_buffer(struct crypt_config *cc, unsigned int size,
                 return NULL;
         }
 
-        /*
-         * Remember the last bio_vec allocated to be able
-         * to correctly continue after the splitting.
-         */
-        *bio_vec_idx = clone->bi_vcnt;
-
         return clone;
 }
 
@@ -495,9 +489,6 @@ static void dec_pending(struct crypt_io *io, int error)
         if (!atomic_dec_and_test(&io->pending))
                 return;
 
-        if (io->first_clone)
-                bio_put(io->first_clone);
-
         bio_endio(io->base_bio, io->base_bio->bi_size, io->error);
 
         mempool_free(io, cc->io_pool);
@@ -562,6 +553,7 @@ static void clone_init(struct crypt_io *io, struct bio *clone)
         clone->bi_end_io  = crypt_endio;
         clone->bi_bdev    = cc->dev->bdev;
         clone->bi_rw      = io->base_bio->bi_rw;
+        clone->bi_destructor = dm_crypt_bio_destructor;
 }
 
 static void process_read(struct crypt_io *io)
@@ -585,7 +577,6 @@ static void process_read(struct crypt_io *io)
         }
 
         clone_init(io, clone);
-        clone->bi_destructor = dm_crypt_bio_destructor;
         clone->bi_idx = 0;
         clone->bi_vcnt = bio_segments(base_bio);
         clone->bi_size = base_bio->bi_size;
@@ -604,7 +595,6 @@ static void process_write(struct crypt_io *io)
         struct convert_context ctx;
         unsigned remaining = base_bio->bi_size;
         sector_t sector = base_bio->bi_sector - io->target->begin;
-        unsigned bvec_idx = 0;
 
         atomic_inc(&io->pending);
 
@@ -615,14 +605,14 @@ static void process_write(struct crypt_io *io)
          * so repeat the whole process until all the data can be handled.
          */
         while (remaining) {
-                clone = crypt_alloc_buffer(cc, base_bio->bi_size,
-                                           io->first_clone, &bvec_idx);
+                clone = crypt_alloc_buffer(io, remaining);
                 if (unlikely(!clone)) {
                         dec_pending(io, -ENOMEM);
                         return;
                 }
 
                 ctx.bio_out = clone;
+                ctx.idx_out = 0;
 
                 if (unlikely(crypt_convert(cc, &ctx) < 0)) {
                         crypt_free_buffer_pages(cc, clone, clone->bi_size);
@@ -631,31 +621,26 @@ static void process_write(struct crypt_io *io)
                         return;
                 }
 
-                clone_init(io, clone);
-                clone->bi_sector = cc->start + sector;
-
-                if (!io->first_clone) {
-                        /*
-                         * hold a reference to the first clone, because it
-                         * holds the bio_vec array and that can't be freed
-                         * before all other clones are released
-                         */
-                        bio_get(clone);
-                        io->first_clone = clone;
-                }
+                /* crypt_convert should have filled the clone bio */
+                BUG_ON(ctx.idx_out < clone->bi_vcnt);
 
+                clone->bi_sector = cc->start + sector;
                 remaining -= clone->bi_size;
                 sector += bio_sectors(clone);
 
-                /* prevent bio_put of first_clone */
+                /* Grab another reference to the io struct
+                 * before we kick off the request */
                 if (remaining)
                         atomic_inc(&io->pending);
 
                 generic_make_request(clone);
 
+                /* Do not reference clone after this - it
+                 * may be gone already. */
+
                 /* out of memory -> run queues */
                 if (remaining)
-                        congestion_wait(bio_data_dir(clone), HZ/100);
+                        congestion_wait(WRITE, HZ/100);
         }
 }
 
@@ -832,6 +817,8 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
                 cc->iv_gen_ops = &crypt_iv_essiv_ops;
         else if (strcmp(ivmode, "benbi") == 0)
                 cc->iv_gen_ops = &crypt_iv_benbi_ops;
+        else if (strcmp(ivmode, "null") == 0)
+                cc->iv_gen_ops = &crypt_iv_null_ops;
         else {
                 ti->error = "Invalid IV mode";
                 goto bad2;
@@ -954,10 +941,12 @@ static int crypt_map(struct dm_target *ti, struct bio *bio,
         struct crypt_config *cc = ti->private;
         struct crypt_io *io;
 
+        if (bio_barrier(bio))
+                return -EOPNOTSUPP;
+
         io = mempool_alloc(cc->io_pool, GFP_NOIO);
         io->target = ti;
         io->base_bio = bio;
-        io->first_clone = NULL;
         io->error = io->post_process = 0;
         atomic_set(&io->pending, 0);
         kcryptd_queue_io(io);
@@ -1057,7 +1046,7 @@ error:
 
 static struct target_type crypt_target = {
         .name   = "crypt",
-        .version= {1, 3, 0},
+        .version= {1, 5, 0},
         .module = THIS_MODULE,
         .ctr    = crypt_ctr,
         .dtr    = crypt_dtr,
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
new file mode 100644
index 000000000000..52c7cf9e5803
--- /dev/null
+++ b/drivers/md/dm-delay.c
@@ -0,0 +1,383 @@
+/*
+ * Copyright (C) 2005-2007 Red Hat GmbH
+ *
+ * A target that delays reads and/or writes and can send
+ * them to different devices.
+ *
+ * This file is released under the GPL.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/bio.h>
+#include <linux/slab.h>
+
+#include "dm.h"
+#include "dm-bio-list.h"
+
+#define DM_MSG_PREFIX "delay"
+
+struct delay_c {
+        struct timer_list delay_timer;
+        struct semaphore timer_lock;
+        struct work_struct flush_expired_bios;
+        struct list_head delayed_bios;
+        atomic_t may_delay;
+        mempool_t *delayed_pool;
+
+        struct dm_dev *dev_read;
+        sector_t start_read;
+        unsigned read_delay;
+        unsigned reads;
+
+        struct dm_dev *dev_write;
+        sector_t start_write;
+        unsigned write_delay;
+        unsigned writes;
+};
+
+struct delay_info {
+        struct delay_c *context;
+        struct list_head list;
+        struct bio *bio;
+        unsigned long expires;
+};
+
+static DEFINE_MUTEX(delayed_bios_lock);
+
+static struct workqueue_struct *kdelayd_wq;
+static struct kmem_cache *delayed_cache;
+
+static void handle_delayed_timer(unsigned long data)
+{
+        struct delay_c *dc = (struct delay_c *)data;
+
+        queue_work(kdelayd_wq, &dc->flush_expired_bios);
+}
+
+static void queue_timeout(struct delay_c *dc, unsigned long expires)
+{
+        down(&dc->timer_lock);
+
+        if (!timer_pending(&dc->delay_timer) || expires < dc->delay_timer.expires)
+                mod_timer(&dc->delay_timer, expires);
+
+        up(&dc->timer_lock);
+}
+
+static void flush_bios(struct bio *bio)
+{
+        struct bio *n;
+
+        while (bio) {
+                n = bio->bi_next;
+                bio->bi_next = NULL;
+                generic_make_request(bio);
+                bio = n;
+        }
+}
+
+static struct bio *flush_delayed_bios(struct delay_c *dc, int flush_all)
+{
+        struct delay_info *delayed, *next;
+        unsigned long next_expires = 0;
+        int start_timer = 0;
+        BIO_LIST(flush_bios);
+
+        mutex_lock(&delayed_bios_lock);
+        list_for_each_entry_safe(delayed, next, &dc->delayed_bios, list) {
+                if (flush_all || time_after_eq(jiffies, delayed->expires)) {
+                        list_del(&delayed->list);
+                        bio_list_add(&flush_bios, delayed->bio);
+                        if ((bio_data_dir(delayed->bio) == WRITE))
+                                delayed->context->writes--;
+                        else
+                                delayed->context->reads--;
+                        mempool_free(delayed, dc->delayed_pool);
+                        continue;
+                }
+
+                if (!start_timer) {
+                        start_timer = 1;
+                        next_expires = delayed->expires;
+                } else
+                        next_expires = min(next_expires, delayed->expires);
+        }
+
+        mutex_unlock(&delayed_bios_lock);
+
+        if (start_timer)
+                queue_timeout(dc, next_expires);
+
+        return bio_list_get(&flush_bios);
+}
+
+static void flush_expired_bios(struct work_struct *work)
+{
+        struct delay_c *dc;
+
+        dc = container_of(work, struct delay_c, flush_expired_bios);
+        flush_bios(flush_delayed_bios(dc, 0));
+}
+
+/*
+ * Mapping parameters:
+ *    <device> <offset> <delay> [<write_device> <write_offset> <write_delay>]
+ *
+ * With separate write parameters, the first set is only used for reads.
+ * Delays are specified in milliseconds.
+ */
+static int delay_ctr(struct dm_target *ti, unsigned int argc, char **argv)
+{
+        struct delay_c *dc;
+        unsigned long long tmpll;
+
+        if (argc != 3 && argc != 6) {
+                ti->error = "requires exactly 3 or 6 arguments";
+                return -EINVAL;
+        }
+
+        dc = kmalloc(sizeof(*dc), GFP_KERNEL);
+        if (!dc) {
+                ti->error = "Cannot allocate context";
+                return -ENOMEM;
+        }
+
+        dc->reads = dc->writes = 0;
+
+        if (sscanf(argv[1], "%llu", &tmpll) != 1) {
+                ti->error = "Invalid device sector";
+                goto bad;
+        }
+        dc->start_read = tmpll;
+
+        if (sscanf(argv[2], "%u", &dc->read_delay) != 1) {
+                ti->error = "Invalid delay";
+                goto bad;
+        }
+
+        if (dm_get_device(ti, argv[0], dc->start_read, ti->len,
+                          dm_table_get_mode(ti->table), &dc->dev_read)) {
+                ti->error = "Device lookup failed";
+                goto bad;
+        }
+
+        if (argc == 3) {
+                dc->dev_write = NULL;
+                goto out;
+        }
+
+        if (sscanf(argv[4], "%llu", &tmpll) != 1) {
+                ti->error = "Invalid write device sector";
+                goto bad;
+        }
+        dc->start_write = tmpll;
+
+        if (sscanf(argv[5], "%u", &dc->write_delay) != 1) {
+                ti->error = "Invalid write delay";
+                goto bad;
+        }
+
+        if (dm_get_device(ti, argv[3], dc->start_write, ti->len,
+                          dm_table_get_mode(ti->table), &dc->dev_write)) {
+                ti->error = "Write device lookup failed";
+                dm_put_device(ti, dc->dev_read);
+                goto bad;
+        }
+
+out:
+        dc->delayed_pool = mempool_create_slab_pool(128, delayed_cache);
+        if (!dc->delayed_pool) {
+                DMERR("Couldn't create delayed bio pool.");
+                goto bad;
+        }
+
+        init_timer(&dc->delay_timer);
+        dc->delay_timer.function = handle_delayed_timer;
+        dc->delay_timer.data = (unsigned long)dc;
+
+        INIT_WORK(&dc->flush_expired_bios, flush_expired_bios);
+        INIT_LIST_HEAD(&dc->delayed_bios);
+        init_MUTEX(&dc->timer_lock);
+        atomic_set(&dc->may_delay, 1);
+
+        ti->private = dc;
+        return 0;
+
+bad:
+        kfree(dc);
+        return -EINVAL;
+}
+
+static void delay_dtr(struct dm_target *ti)
+{
+        struct delay_c *dc = ti->private;
+
+        flush_workqueue(kdelayd_wq);
+
+        dm_put_device(ti, dc->dev_read);
+
+        if (dc->dev_write)
+                dm_put_device(ti, dc->dev_write);
+
+        mempool_destroy(dc->delayed_pool);
+        kfree(dc);
+}
+
+static int delay_bio(struct delay_c *dc, int delay, struct bio *bio)
+{
+        struct delay_info *delayed;
+        unsigned long expires = 0;
+
+        if (!delay || !atomic_read(&dc->may_delay))
+                return 1;
+
+        delayed = mempool_alloc(dc->delayed_pool, GFP_NOIO);
+
+        delayed->context = dc;
+        delayed->bio = bio;
+        delayed->expires = expires = jiffies + (delay * HZ / 1000);
+
+        mutex_lock(&delayed_bios_lock);
+
+        if (bio_data_dir(bio) == WRITE)
+                dc->writes++;
+        else
+                dc->reads++;
+
+        list_add_tail(&delayed->list, &dc->delayed_bios);
+
+        mutex_unlock(&delayed_bios_lock);
+
+        queue_timeout(dc, expires);
+
+        return 0;
+}
+
+static void delay_presuspend(struct dm_target *ti)
+{
+        struct delay_c *dc = ti->private;
+
+        atomic_set(&dc->may_delay, 0);
+        del_timer_sync(&dc->delay_timer);
+        flush_bios(flush_delayed_bios(dc, 1));
+}
+
+static void delay_resume(struct dm_target *ti)
+{
+        struct delay_c *dc = ti->private;
+
+        atomic_set(&dc->may_delay, 1);
+}
+
+static int delay_map(struct dm_target *ti, struct bio *bio,
+                     union map_info *map_context)
+{
+        struct delay_c *dc = ti->private;
+
+        if ((bio_data_dir(bio) == WRITE) && (dc->dev_write)) {
+                bio->bi_bdev = dc->dev_write->bdev;
+                bio->bi_sector = dc->start_write +
+                                 (bio->bi_sector - ti->begin);
+
+                return delay_bio(dc, dc->write_delay, bio);
+        }
+
+        bio->bi_bdev = dc->dev_read->bdev;
+        bio->bi_sector = dc->start_read +
+                         (bio->bi_sector - ti->begin);
+
+        return delay_bio(dc, dc->read_delay, bio);
+}
+
+static int delay_status(struct dm_target *ti, status_type_t type,
+                        char *result, unsigned maxlen)
+{
+        struct delay_c *dc = ti->private;
+        int sz = 0;
+
+        switch (type) {
+        case STATUSTYPE_INFO:
+                DMEMIT("%u %u", dc->reads, dc->writes);
+                break;
+
+        case STATUSTYPE_TABLE:
+                DMEMIT("%s %llu %u", dc->dev_read->name,
+                       (unsigned long long) dc->start_read,
+                       dc->read_delay);
+                if (dc->dev_write)
+                        DMEMIT("%s %llu %u", dc->dev_write->name,
+                               (unsigned long long) dc->start_write,
+                               dc->write_delay);
+                break;
+        }
+
+        return 0;
+}
+
+static struct target_type delay_target = {
+        .name        = "delay",
+        .version     = {1, 0, 2},
+        .module      = THIS_MODULE,
+        .ctr         = delay_ctr,
+        .dtr         = delay_dtr,
+        .map         = delay_map,
+        .presuspend  = delay_presuspend,
+        .resume      = delay_resume,
+        .status      = delay_status,
+};
+
+static int __init dm_delay_init(void)
+{
+        int r = -ENOMEM;
+
+        kdelayd_wq = create_workqueue("kdelayd");
+        if (!kdelayd_wq) {
+                DMERR("Couldn't start kdelayd");
+                goto bad_queue;
+        }
+
+        delayed_cache = kmem_cache_create("dm-delay",
+                                          sizeof(struct delay_info),
+                                          __alignof__(struct delay_info),
+                                          0, NULL, NULL);
+        if (!delayed_cache) {
+                DMERR("Couldn't create delayed bio cache.");
+                goto bad_memcache;
+        }
+
+        r = dm_register_target(&delay_target);
+        if (r < 0) {
+                DMERR("register failed %d", r);
+                goto bad_register;
+        }
+
+        return 0;
+
+bad_register:
+        kmem_cache_destroy(delayed_cache);
+bad_memcache:
+        destroy_workqueue(kdelayd_wq);
+bad_queue:
+        return r;
+}
+
+static void __exit dm_delay_exit(void)
+{
+        int r = dm_unregister_target(&delay_target);
+
+        if (r < 0)
+                DMERR("unregister failed %d", r);
+
+        kmem_cache_destroy(delayed_cache);
+        destroy_workqueue(kdelayd_wq);
+}
+
+/* Module hooks */
+module_init(dm_delay_init);
+module_exit(dm_delay_exit);
+
+MODULE_DESCRIPTION(DM_NAME " delay target");
+MODULE_AUTHOR("Heinz Mauelshagen <mauelshagen@redhat.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c
index 99cdffa7fbfe..07e0a0c84f6e 100644
--- a/drivers/md/dm-exception-store.c
+++ b/drivers/md/dm-exception-store.c
@@ -1,7 +1,8 @@
 /*
- * dm-snapshot.c
+ * dm-exception-store.c
  *
  * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
+ * Copyright (C) 2006 Red Hat GmbH
  *
  * This file is released under the GPL.
  */
@@ -123,6 +124,7 @@ struct pstore {
         atomic_t pending_count;
         uint32_t callback_count;
         struct commit_callback *callbacks;
+        struct dm_io_client *io_client;
 };
 
 static inline unsigned int sectors_to_pages(unsigned int sectors)
@@ -159,14 +161,20 @@ static void free_area(struct pstore *ps)
  */
 static int chunk_io(struct pstore *ps, uint32_t chunk, int rw)
 {
-        struct io_region where;
-        unsigned long bits;
-
-        where.bdev = ps->snap->cow->bdev;
-        where.sector = ps->snap->chunk_size * chunk;
-        where.count = ps->snap->chunk_size;
-
-        return dm_io_sync_vm(1, &where, rw, ps->area, &bits);
+        struct io_region where = {
+                .bdev = ps->snap->cow->bdev,
+                .sector = ps->snap->chunk_size * chunk,
+                .count = ps->snap->chunk_size,
+        };
+        struct dm_io_request io_req = {
+                .bi_rw = rw,
+                .mem.type = DM_IO_VMA,
+                .mem.ptr.vma = ps->area,
+                .client = ps->io_client,
+                .notify.fn = NULL,
+        };
+
+        return dm_io(&io_req, 1, &where, NULL);
 }
 
 /*
@@ -213,17 +221,18 @@ static int read_header(struct pstore *ps, int *new_snapshot)
                 chunk_size_supplied = 0;
         }
 
-        r = dm_io_get(sectors_to_pages(ps->snap->chunk_size));
-        if (r)
-                return r;
+        ps->io_client = dm_io_client_create(sectors_to_pages(ps->snap->
+                                                             chunk_size));
+        if (IS_ERR(ps->io_client))
+                return PTR_ERR(ps->io_client);
 
         r = alloc_area(ps);
         if (r)
-                goto bad1;
+                return r;
 
         r = chunk_io(ps, 0, READ);
         if (r)
-                goto bad2;
+                goto bad;
 
         dh = (struct disk_header *) ps->area;
 
@@ -235,7 +244,7 @@ static int read_header(struct pstore *ps, int *new_snapshot)
         if (le32_to_cpu(dh->magic) != SNAP_MAGIC) {
                 DMWARN("Invalid or corrupt snapshot");
                 r = -ENXIO;
-                goto bad2;
+                goto bad;
         }
 
         *new_snapshot = 0;
@@ -252,27 +261,22 @@ static int read_header(struct pstore *ps, int *new_snapshot)
                (unsigned long long)ps->snap->chunk_size);
 
         /* We had a bogus chunk_size. Fix stuff up. */
-        dm_io_put(sectors_to_pages(ps->snap->chunk_size));
         free_area(ps);
 
         ps->snap->chunk_size = chunk_size;
         ps->snap->chunk_mask = chunk_size - 1;
         ps->snap->chunk_shift = ffs(chunk_size) - 1;
 
-        r = dm_io_get(sectors_to_pages(chunk_size));
+        r = dm_io_client_resize(sectors_to_pages(ps->snap->chunk_size),
+                                ps->io_client);
         if (r)
                 return r;
 
         r = alloc_area(ps);
-        if (r)
-                goto bad1;
-
-        return 0;
+        return r;
 
-bad2:
+bad:
         free_area(ps);
-bad1:
-        dm_io_put(sectors_to_pages(ps->snap->chunk_size));
         return r;
 }
 
@@ -405,7 +409,7 @@ static void persistent_destroy(struct exception_store *store)
 {
         struct pstore *ps = get_info(store);
 
-        dm_io_put(sectors_to_pages(ps->snap->chunk_size));
+        dm_io_client_destroy(ps->io_client);
         vfree(ps->callbacks);
         free_area(ps);
         kfree(ps);
diff --git a/drivers/md/dm-hw-handler.h b/drivers/md/dm-hw-handler.h
index 32eff28e4adc..e0832e6fcf36 100644
--- a/drivers/md/dm-hw-handler.h
+++ b/drivers/md/dm-hw-handler.h
@@ -16,6 +16,7 @@
 struct hw_handler_type;
 struct hw_handler {
         struct hw_handler_type *type;
+        struct mapped_device *md;
         void *context;
 };
 
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 8bdc8a87b249..352c6fbeac53 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2003 Sistina Software
+ * Copyright (C) 2006 Red Hat GmbH
  *
  * This file is released under the GPL.
  */
@@ -12,13 +13,17 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 
-static struct bio_set *_bios;
+struct dm_io_client {
+        mempool_t *pool;
+        struct bio_set *bios;
+};
 
 /* FIXME: can we shrink this ? */
 struct io {
         unsigned long error;
         atomic_t count;
         struct task_struct *sleeper;
+        struct dm_io_client *client;
         io_notify_fn callback;
         void *context;
 };
@@ -26,63 +31,58 @@ struct io {
 /*
  * io contexts are only dynamically allocated for asynchronous
  * io.  Since async io is likely to be the majority of io we'll
- * have the same number of io contexts as buffer heads ! (FIXME:
- * must reduce this).
+ * have the same number of io contexts as bios! (FIXME: must reduce this).
  */
-static unsigned _num_ios;
-static mempool_t *_io_pool;
 
 static unsigned int pages_to_ios(unsigned int pages)
 {
         return 4 * pages;       /* too many ? */
 }
 
-static int resize_pool(unsigned int new_ios)
+/*
+ * Create a client with mempool and bioset.
+ */
+struct dm_io_client *dm_io_client_create(unsigned num_pages)
 {
-        int r = 0;
-
-        if (_io_pool) {
-                if (new_ios == 0) {
-                        /* free off the pool */
-                        mempool_destroy(_io_pool);
-                        _io_pool = NULL;
-                        bioset_free(_bios);
-
-                } else {
-                        /* resize the pool */
-                        r = mempool_resize(_io_pool, new_ios, GFP_KERNEL);
-                }
+        unsigned ios = pages_to_ios(num_pages);
+        struct dm_io_client *client;
 
-        } else {
-                /* create new pool */
-                _io_pool = mempool_create_kmalloc_pool(new_ios,
-                                                       sizeof(struct io));
-                if (!_io_pool)
-                        return -ENOMEM;
-
-                _bios = bioset_create(16, 16);
-                if (!_bios) {
-                        mempool_destroy(_io_pool);
-                        _io_pool = NULL;
-                        return -ENOMEM;
-                }
-        }
+        client = kmalloc(sizeof(*client), GFP_KERNEL);
+        if (!client)
+                return ERR_PTR(-ENOMEM);
+
+        client->pool = mempool_create_kmalloc_pool(ios, sizeof(struct io));
+        if (!client->pool)
+                goto bad;
 
-        if (!r)
-                _num_ios = new_ios;
+        client->bios = bioset_create(16, 16);
+        if (!client->bios)
+                goto bad;
 
-        return r;
+        return client;
+
+   bad:
+        if (client->pool)
+                mempool_destroy(client->pool);
+        kfree(client);
+        return ERR_PTR(-ENOMEM);
 }
+EXPORT_SYMBOL(dm_io_client_create);
 
-int dm_io_get(unsigned int num_pages)
+int dm_io_client_resize(unsigned num_pages, struct dm_io_client *client)
 {
-        return resize_pool(_num_ios + pages_to_ios(num_pages));
+        return mempool_resize(client->pool, pages_to_ios(num_pages),
+                              GFP_KERNEL);
 }
+EXPORT_SYMBOL(dm_io_client_resize);
 
-void dm_io_put(unsigned int num_pages)
+void dm_io_client_destroy(struct dm_io_client *client)
 {
-        resize_pool(_num_ios - pages_to_ios(num_pages));
+        mempool_destroy(client->pool);
+        bioset_free(client->bios);
+        kfree(client);
 }
+EXPORT_SYMBOL(dm_io_client_destroy);
 
 /*-----------------------------------------------------------------
  * We need to keep track of which region a bio is doing io for.
@@ -118,7 +118,7 @@ static void dec_count(struct io *io, unsigned int region, int error)
                         io_notify_fn fn = io->callback;
                         void *context = io->context;
 
-                        mempool_free(io, _io_pool);
+                        mempool_free(io, io->client->pool);
                         fn(r, context);
                 }
         }
@@ -126,7 +126,8 @@ static void dec_count(struct io *io, unsigned int region, int error)
 
 static int endio(struct bio *bio, unsigned int done, int error)
 {
-        struct io *io = (struct io *) bio->bi_private;
+        struct io *io;
+        unsigned region;
 
         /* keep going until we've finished */
         if (bio->bi_size)
@@ -135,10 +136,17 @@ static int endio(struct bio *bio, unsigned int done, int error)
         if (error && bio_data_dir(bio) == READ)
                 zero_fill_bio(bio);
 
-        dec_count(io, bio_get_region(bio), error);
+        /*
+         * The bio destructor in bio_put() may use the io object.
+         */
+        io = bio->bi_private;
+        region = bio_get_region(bio);
+
         bio->bi_max_vecs++;
         bio_put(bio);
 
+        dec_count(io, region, error);
+
         return 0;
 }
 
@@ -209,6 +217,9 @@ static void bvec_dp_init(struct dpages *dp, struct bio_vec *bvec)
         dp->context_ptr = bvec;
 }
 
+/*
+ * Functions for getting the pages from a VMA.
+ */
 static void vm_get_page(struct dpages *dp,
                  struct page **p, unsigned long *len, unsigned *offset)
 {
@@ -233,7 +244,34 @@ static void vm_dp_init(struct dpages *dp, void *data)
 
 static void dm_bio_destructor(struct bio *bio)
 {
-        bio_free(bio, _bios);
+        struct io *io = bio->bi_private;
+
+        bio_free(bio, io->client->bios);
+}
+
+/*
+ * Functions for getting the pages from kernel memory.
+ */
+static void km_get_page(struct dpages *dp, struct page **p, unsigned long *len,
+                        unsigned *offset)
+{
+        *p = virt_to_page(dp->context_ptr);
+        *offset = dp->context_u;
+        *len = PAGE_SIZE - dp->context_u;
+}
+
+static void km_next_page(struct dpages *dp)
+{
+        dp->context_ptr += PAGE_SIZE - dp->context_u;
+        dp->context_u = 0;
+}
+
+static void km_dp_init(struct dpages *dp, void *data)
+{
+        dp->get_page = km_get_page;
+        dp->next_page = km_next_page;
+        dp->context_u = ((unsigned long) data) & (PAGE_SIZE - 1);
+        dp->context_ptr = data;
 }
 
 /*-----------------------------------------------------------------
@@ -256,7 +294,7 @@ static void do_region(int rw, unsigned int region, struct io_region *where,
                  * to hide it from bio_add_page().
                  */
                 num_bvecs = (remaining / (PAGE_SIZE >> SECTOR_SHIFT)) + 2;
-                bio = bio_alloc_bioset(GFP_NOIO, num_bvecs, _bios);
+                bio = bio_alloc_bioset(GFP_NOIO, num_bvecs, io->client->bios);
                 bio->bi_sector = where->sector + (where->count - remaining);
                 bio->bi_bdev = where->bdev;
                 bio->bi_end_io = endio;
@@ -311,8 +349,9 @@ static void dispatch_io(int rw, unsigned int num_regions,
         dec_count(io, 0, 0);
 }
 
-static int sync_io(unsigned int num_regions, struct io_region *where,
-            int rw, struct dpages *dp, unsigned long *error_bits)
+static int sync_io(struct dm_io_client *client, unsigned int num_regions,
+                   struct io_region *where, int rw, struct dpages *dp,
+                   unsigned long *error_bits)
 {
         struct io io;
 
@@ -324,6 +363,7 @@ static int sync_io(unsigned int num_regions, struct io_region *where,
         io.error = 0;
         atomic_set(&io.count, 1); /* see dispatch_io() */
         io.sleeper = current;
+        io.client = client;
 
         dispatch_io(rw, num_regions, where, dp, &io, 1);
 
@@ -340,12 +380,15 @@ static int sync_io(unsigned int num_regions, struct io_region *where,
         if (atomic_read(&io.count))
                 return -EINTR;
 
-        *error_bits = io.error;
+        if (error_bits)
+                *error_bits = io.error;
+
         return io.error ? -EIO : 0;
 }
 
-static int async_io(unsigned int num_regions, struct io_region *where, int rw,
-             struct dpages *dp, io_notify_fn fn, void *context)
+static int async_io(struct dm_io_client *client, unsigned int num_regions,
+                    struct io_region *where, int rw, struct dpages *dp,
+                    io_notify_fn fn, void *context)
 {
         struct io *io;
 
@@ -355,10 +398,11 @@ static int async_io(unsigned int num_regions, struct io_region *where, int rw,
                 return -EIO;
         }
 
-        io = mempool_alloc(_io_pool, GFP_NOIO);
+        io = mempool_alloc(client->pool, GFP_NOIO);
         io->error = 0;
         atomic_set(&io->count, 1); /* see dispatch_io() */
         io->sleeper = NULL;
+        io->client = client;
         io->callback = fn;
         io->context = context;
 
@@ -366,61 +410,51 @@ static int async_io(unsigned int num_regions, struct io_region *where, int rw,
         return 0;
 }
 
-int dm_io_sync(unsigned int num_regions, struct io_region *where, int rw,
-               struct page_list *pl, unsigned int offset,
-               unsigned long *error_bits)
+static int dp_init(struct dm_io_request *io_req, struct dpages *dp)
 {
-        struct dpages dp;
-        list_dp_init(&dp, pl, offset);
-        return sync_io(num_regions, where, rw, &dp, error_bits);
-}
+        /* Set up dpages based on memory type */
+        switch (io_req->mem.type) {
+        case DM_IO_PAGE_LIST:
+                list_dp_init(dp, io_req->mem.ptr.pl, io_req->mem.offset);
+                break;
+
+        case DM_IO_BVEC:
+                bvec_dp_init(dp, io_req->mem.ptr.bvec);
+                break;
+
+        case DM_IO_VMA:
+                vm_dp_init(dp, io_req->mem.ptr.vma);
+                break;
+
+        case DM_IO_KMEM:
+                km_dp_init(dp, io_req->mem.ptr.addr);
+                break;
+
+        default:
+                return -EINVAL;
+        }
 
-int dm_io_sync_bvec(unsigned int num_regions, struct io_region *where, int rw,
-                    struct bio_vec *bvec, unsigned long *error_bits)
-{
-        struct dpages dp;
-        bvec_dp_init(&dp, bvec);
-        return sync_io(num_regions, where, rw, &dp, error_bits);
+        return 0;
 }
 
-int dm_io_sync_vm(unsigned int num_regions, struct io_region *where, int rw,
-                  void *data, unsigned long *error_bits)
+/*
+ * New collapsed (a)synchronous interface
+ */
+int dm_io(struct dm_io_request *io_req, unsigned num_regions,
+          struct io_region *where, unsigned long *sync_error_bits)
 {
+        int r;
         struct dpages dp;
-        vm_dp_init(&dp, data);
-        return sync_io(num_regions, where, rw, &dp, error_bits);
-}
 
-int dm_io_async(unsigned int num_regions, struct io_region *where, int rw,
-                struct page_list *pl, unsigned int offset,
-                io_notify_fn fn, void *context)
-{
-        struct dpages dp;
-        list_dp_init(&dp, pl, offset);
-        return async_io(num_regions, where, rw, &dp, fn, context);
-}
+        r = dp_init(io_req, &dp);
+        if (r)
+                return r;
 
-int dm_io_async_bvec(unsigned int num_regions, struct io_region *where, int rw,
-                     struct bio_vec *bvec, io_notify_fn fn, void *context)
-{
-        struct dpages dp;
-        bvec_dp_init(&dp, bvec);
-        return async_io(num_regions, where, rw, &dp, fn, context);
-}
+        if (!io_req->notify.fn)
+                return sync_io(io_req->client, num_regions, where,
+                               io_req->bi_rw, &dp, sync_error_bits);
 
-int dm_io_async_vm(unsigned int num_regions, struct io_region *where, int rw,
-                   void *data, io_notify_fn fn, void *context)
-{
-        struct dpages dp;
-        vm_dp_init(&dp, data);
-        return async_io(num_regions, where, rw, &dp, fn, context);
+        return async_io(io_req->client, num_regions, where, io_req->bi_rw,
+                        &dp, io_req->notify.fn, io_req->notify.context);
 }
-
-EXPORT_SYMBOL(dm_io_get);
-EXPORT_SYMBOL(dm_io_put);
-EXPORT_SYMBOL(dm_io_sync);
-EXPORT_SYMBOL(dm_io_async);
-EXPORT_SYMBOL(dm_io_sync_bvec);
-EXPORT_SYMBOL(dm_io_async_bvec);
-EXPORT_SYMBOL(dm_io_sync_vm);
-EXPORT_SYMBOL(dm_io_async_vm);
+EXPORT_SYMBOL(dm_io);
diff --git a/drivers/md/dm-io.h b/drivers/md/dm-io.h
index f9035bfd1a9f..f647e2cceaa6 100644
--- a/drivers/md/dm-io.h
+++ b/drivers/md/dm-io.h
@@ -12,7 +12,7 @@
 struct io_region {
         struct block_device *bdev;
         sector_t sector;
-        sector_t count;
+        sector_t count;         /* If this is zero the region is ignored. */
 };
 
 struct page_list {
@@ -20,55 +20,60 @@ struct page_list {
         struct page *page;
 };
 
-
-/*
- * 'error' is a bitset, with each bit indicating whether an error
- * occurred doing io to the corresponding region.
- */
 typedef void (*io_notify_fn)(unsigned long error, void *context);
 
+enum dm_io_mem_type {
+        DM_IO_PAGE_LIST,/* Page list */
+        DM_IO_BVEC,     /* Bio vector */
+        DM_IO_VMA,      /* Virtual memory area */
+        DM_IO_KMEM,     /* Kernel memory */
+};
+
+struct dm_io_memory {
+        enum dm_io_mem_type type;
+
+        union {
+                struct page_list *pl;
+                struct bio_vec *bvec;
+                void *vma;
+                void *addr;
+        } ptr;
+
+        unsigned offset;
+};
+
+struct dm_io_notify {
+        io_notify_fn fn;        /* Callback for asynchronous requests */
+        void *context;          /* Passed to callback */
+};
 
 /*
- * Before anyone uses the IO interface they should call
- * dm_io_get(), specifying roughly how many pages they are
- * expecting to perform io on concurrently.
- *
- * This function may block.
+ * IO request structure
  */
-int dm_io_get(unsigned int num_pages);
-void dm_io_put(unsigned int num_pages);
+struct dm_io_client;
+struct dm_io_request {
+        int bi_rw;                      /* READ|WRITE - not READA */
+        struct dm_io_memory mem;        /* Memory to use for io */
+        struct dm_io_notify notify;     /* Synchronous if notify.fn is NULL */
+        struct dm_io_client *client;    /* Client memory handler */
+};
 
 /*
- * Synchronous IO.
+ * For async io calls, users can alternatively use the dm_io() function below
+ * and dm_io_client_create() to create private mempools for the client.
  *
- * Please ensure that the rw flag in the next two functions is
- * either READ or WRITE, ie. we don't take READA.  Any
- * regions with a zero count field will be ignored.
+ * Create/destroy may block.
  */
-int dm_io_sync(unsigned int num_regions, struct io_region *where, int rw,
-               struct page_list *pl, unsigned int offset,
-               unsigned long *error_bits);
-
-int dm_io_sync_bvec(unsigned int num_regions, struct io_region *where, int rw,
-                    struct bio_vec *bvec, unsigned long *error_bits);
-
-int dm_io_sync_vm(unsigned int num_regions, struct io_region *where, int rw,
-                  void *data, unsigned long *error_bits);
+struct dm_io_client *dm_io_client_create(unsigned num_pages);
+int dm_io_client_resize(unsigned num_pages, struct dm_io_client *client);
+void dm_io_client_destroy(struct dm_io_client *client);
 
 /*
- * Aynchronous IO.
- *
- * The 'where' array may be safely allocated on the stack since
- * the function takes a copy.
+ * IO interface using private per-client pools.
+ * Each bit in the optional 'sync_error_bits' bitset indicates whether an
+ * error occurred doing io to the corresponding region.
  */
-int dm_io_async(unsigned int num_regions, struct io_region *where, int rw,
-                struct page_list *pl, unsigned int offset,
-                io_notify_fn fn, void *context);
-
-int dm_io_async_bvec(unsigned int num_regions, struct io_region *where, int rw,
-                     struct bio_vec *bvec, io_notify_fn fn, void *context);
-
-int dm_io_async_vm(unsigned int num_regions, struct io_region *where, int rw,
-                   void *data, io_notify_fn fn, void *context);
+int dm_io(struct dm_io_request *io_req, unsigned num_regions,
+          struct io_region *region, unsigned long *sync_error_bits);
 
 #endif
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index 6a9261351848..a66428d860fe 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -149,9 +149,12 @@ struct log_c {
                 FORCESYNC,      /* Force a sync to happen */
         } sync;
 
+        struct dm_io_request io_req;
+
         /*
          * Disk log fields
          */
+        int log_dev_failed;
         struct dm_dev *log_dev;
         struct log_header header;
 
@@ -199,13 +202,20 @@ static void header_from_disk(struct log_header *core, struct log_header *disk)
         core->nr_regions = le64_to_cpu(disk->nr_regions);
 }
 
+static int rw_header(struct log_c *lc, int rw)
+{
+        lc->io_req.bi_rw = rw;
+        lc->io_req.mem.ptr.vma = lc->disk_header;
+        lc->io_req.notify.fn = NULL;
+
+        return dm_io(&lc->io_req, 1, &lc->header_location, NULL);
+}
+
 static int read_header(struct log_c *log)
 {
         int r;
-        unsigned long ebits;
 
-        r = dm_io_sync_vm(1, &log->header_location, READ,
-                          log->disk_header, &ebits);
+        r = rw_header(log, READ);
         if (r)
                 return r;
 
@@ -233,11 +243,8 @@ static int read_header(struct log_c *log)
 
 static inline int write_header(struct log_c *log)
 {
-        unsigned long ebits;
-
         header_to_disk(&log->header, log->disk_header);
-        return dm_io_sync_vm(1, &log->header_location, WRITE,
-                             log->disk_header, &ebits);
+        return rw_header(log, WRITE);
 }
 
 /*----------------------------------------------------------------
@@ -256,6 +263,7 @@ static int create_log_context(struct dirty_log *log, struct dm_target *ti,
         uint32_t region_size;
         unsigned int region_count;
         size_t bitset_size, buf_size;
+        int r;
 
         if (argc < 1 || argc > 2) {
                 DMWARN("wrong number of arguments to mirror log");
@@ -315,6 +323,7 @@ static int create_log_context(struct dirty_log *log, struct dm_target *ti,
                 lc->disk_header = NULL;
         } else {
                 lc->log_dev = dev;
+                lc->log_dev_failed = 0;
                 lc->header_location.bdev = lc->log_dev->bdev;
                 lc->header_location.sector = 0;
 
@@ -324,6 +333,15 @@ static int create_log_context(struct dirty_log *log, struct dm_target *ti,
                 buf_size = dm_round_up((LOG_OFFSET << SECTOR_SHIFT) +
                                        bitset_size, ti->limits.hardsect_size);
                 lc->header_location.count = buf_size >> SECTOR_SHIFT;
+                lc->io_req.mem.type = DM_IO_VMA;
+                lc->io_req.client = dm_io_client_create(dm_div_up(buf_size,
+                                                                   PAGE_SIZE));
+                if (IS_ERR(lc->io_req.client)) {
+                        r = PTR_ERR(lc->io_req.client);
+                        DMWARN("couldn't allocate disk io client");
+                        kfree(lc);
+                        return -ENOMEM;
+                }
 
                 lc->disk_header = vmalloc(buf_size);
                 if (!lc->disk_header) {
@@ -424,6 +442,7 @@ static void disk_dtr(struct dirty_log *log)
 
         dm_put_device(lc->ti, lc->log_dev);
         vfree(lc->disk_header);
+        dm_io_client_destroy(lc->io_req.client);
         destroy_log_context(lc);
 }
 
@@ -437,6 +456,15 @@ static int count_bits32(uint32_t *addr, unsigned size)
         return count;
 }
 
+static void fail_log_device(struct log_c *lc)
+{
+        if (lc->log_dev_failed)
+                return;
+
+        lc->log_dev_failed = 1;
+        dm_table_event(lc->ti->table);
+}
+
 static int disk_resume(struct dirty_log *log)
 {
         int r;
@@ -446,8 +474,19 @@ static int disk_resume(struct dirty_log *log)
 
         /* read the disk header */
         r = read_header(lc);
-        if (r)
-                return r;
+        if (r) {
+                DMWARN("%s: Failed to read header on mirror log device",
+                       lc->log_dev->name);
+                fail_log_device(lc);
+                /*
+                 * If the log device cannot be read, we must assume
+                 * all regions are out-of-sync.  If we simply return
+                 * here, the state will be uninitialized and could
+                 * lead us to return 'in-sync' status for regions
+                 * that are actually 'out-of-sync'.
+                 */
+                lc->header.nr_regions = 0;
+        }
 
         /* set or clear any new bits -- device has grown */
         if (lc->sync == NOSYNC)
@@ -472,7 +511,14 @@ static int disk_resume(struct dirty_log *log)
         lc->header.nr_regions = lc->region_count;
 
         /* write the new header */
-        return write_header(lc);
+        r = write_header(lc);
+        if (r) {
+                DMWARN("%s: Failed to write header on mirror log device",
+                       lc->log_dev->name);
+                fail_log_device(lc);
+        }
+
+        return r;
 }
 
 static uint32_t core_get_region_size(struct dirty_log *log)
@@ -516,7 +562,9 @@ static int disk_flush(struct dirty_log *log)
                 return 0;
 
         r = write_header(lc);
-        if (!r)
+        if (r)
+                fail_log_device(lc);
+        else
                 lc->touched = 0;
 
         return r;
@@ -591,6 +639,7 @@ static int core_status(struct dirty_log *log, status_type_t status,
 
         switch(status) {
         case STATUSTYPE_INFO:
+                DMEMIT("1 %s", log->type->name);
                 break;
 
         case STATUSTYPE_TABLE:
@@ -606,17 +655,17 @@ static int disk_status(struct dirty_log *log, status_type_t status,
                        char *result, unsigned int maxlen)
 {
         int sz = 0;
-        char buffer[16];
         struct log_c *lc = log->context;
 
         switch(status) {
         case STATUSTYPE_INFO:
+                DMEMIT("3 %s %s %c", log->type->name, lc->log_dev->name,
+                       lc->log_dev_failed ? 'D' : 'A');
                 break;
 
         case STATUSTYPE_TABLE:
-                format_dev_t(buffer, lc->log_dev->bdev->bd_dev);
                 DMEMIT("%s %u %s %u ", log->type->name,
-                       lc->sync == DEFAULTSYNC ? 2 : 3, buffer,
+                       lc->sync == DEFAULTSYNC ? 2 : 3, lc->log_dev->name,
                        lc->region_size);
                 DMEMIT_SYNC;
         }
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 3aa013506967..de54b39e6ffe 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -668,6 +668,9 @@ static int parse_hw_handler(struct arg_set *as, struct multipath *m)
                 return -EINVAL;
         }
 
+        m->hw_handler.md = dm_table_get_md(ti->table);
+        dm_put(m->hw_handler.md);
+
         r = hwht->create(&m->hw_handler, hw_argc - 1, as->argv);
         if (r) {
                 dm_put_hw_handler(hwht);
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index 23a642619bed..ef124b71ccc8 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -21,15 +21,11 @@
 #include <linux/workqueue.h>
 
 #define DM_MSG_PREFIX "raid1"
+#define DM_IO_PAGES 64
 
-static struct workqueue_struct *_kmirrord_wq;
-static struct work_struct _kmirrord_work;
-static DECLARE_WAIT_QUEUE_HEAD(_kmirrord_recovery_stopped);
+#define DM_RAID1_HANDLE_ERRORS 0x01
 
-static inline void wake(void)
-{
-        queue_work(_kmirrord_wq, &_kmirrord_work);
-}
+static DECLARE_WAIT_QUEUE_HEAD(_kmirrord_recovery_stopped);
 
 /*-----------------------------------------------------------------
  * Region hash
@@ -125,17 +121,23 @@ struct mirror_set {
         struct list_head list;
         struct region_hash rh;
         struct kcopyd_client *kcopyd_client;
+        uint64_t features;
 
         spinlock_t lock;        /* protects the next two lists */
         struct bio_list reads;
         struct bio_list writes;
 
+        struct dm_io_client *io_client;
+
         /* recovery */
         region_t nr_regions;
         int in_sync;
 
         struct mirror *default_mirror;  /* Default mirror */
 
+        struct workqueue_struct *kmirrord_wq;
+        struct work_struct kmirrord_work;
+
         unsigned int nr_mirrors;
         struct mirror mirror[0];
 };
@@ -153,6 +155,11 @@ static inline sector_t region_to_sector(struct region_hash *rh, region_t region)
         return region << rh->region_shift;
 }
 
+static void wake(struct mirror_set *ms)
+{
+        queue_work(ms->kmirrord_wq, &ms->kmirrord_work);
+}
+
 /* FIXME move this */
 static void queue_bio(struct mirror_set *ms, struct bio *bio, int rw);
 
@@ -398,8 +405,7 @@ static void rh_update_states(struct region_hash *rh)
                 mempool_free(reg, rh->region_pool);
         }
 
-        if (!list_empty(&recovered))
-                rh->log->type->flush(rh->log);
+        rh->log->type->flush(rh->log);
 
         list_for_each_entry_safe (reg, next, &clean, list)
                 mempool_free(reg, rh->region_pool);
@@ -471,7 +477,7 @@ static void rh_dec(struct region_hash *rh, region_t region)
         spin_unlock_irqrestore(&rh->region_lock, flags);
 
         if (should_wake)
-                wake();
+                wake(rh->ms);
 }
 
 /*
@@ -558,7 +564,7 @@ static void rh_recovery_end(struct region *reg, int success)
         list_add(&reg->list, &reg->rh->recovered_regions);
         spin_unlock_irq(&rh->region_lock);
 
-        wake();
+        wake(rh->ms);
 }
 
 static void rh_flush(struct region_hash *rh)
@@ -592,7 +598,7 @@ static void rh_start_recovery(struct region_hash *rh)
         for (i = 0; i < MAX_RECOVERY; i++)
                 up(&rh->recovery_count);
 
-        wake();
+        wake(rh->ms);
 }
 
 /*
@@ -735,7 +741,7 @@ static void do_reads(struct mirror_set *ms, struct bio_list *reads)
                 /*
                  * We can only read balance if the region is in sync.
                  */
-                if (rh_in_sync(&ms->rh, region, 0))
+                if (rh_in_sync(&ms->rh, region, 1))
                         m = choose_mirror(ms, bio->bi_sector);
                 else
                         m = ms->default_mirror;
@@ -792,6 +798,14 @@ static void do_write(struct mirror_set *ms, struct bio *bio)
         unsigned int i;
         struct io_region io[KCOPYD_MAX_REGIONS+1];
         struct mirror *m;
+        struct dm_io_request io_req = {
+                .bi_rw = WRITE,
+                .mem.type = DM_IO_BVEC,
+                .mem.ptr.bvec = bio->bi_io_vec + bio->bi_idx,
+                .notify.fn = write_callback,
+                .notify.context = bio,
+                .client = ms->io_client,
+        };
 
         for (i = 0; i < ms->nr_mirrors; i++) {
                 m = ms->mirror + i;
@@ -802,9 +816,8 @@ static void do_write(struct mirror_set *ms, struct bio *bio)
         }
 
         bio_set_ms(bio, ms);
-        dm_io_async_bvec(ms->nr_mirrors, io, WRITE,
-                         bio->bi_io_vec + bio->bi_idx,
-                         write_callback, bio);
+
+        (void) dm_io(&io_req, ms->nr_mirrors, io, NULL);
 }
 
 static void do_writes(struct mirror_set *ms, struct bio_list *writes)
@@ -870,11 +883,10 @@ static void do_writes(struct mirror_set *ms, struct bio_list *writes)
 /*-----------------------------------------------------------------
  * kmirrord
  *---------------------------------------------------------------*/
-static LIST_HEAD(_mirror_sets);
-static DECLARE_RWSEM(_mirror_sets_lock);
-
-static void do_mirror(struct mirror_set *ms)
+static void do_mirror(struct work_struct *work)
 {
+        struct mirror_set *ms =container_of(work, struct mirror_set,
+                                            kmirrord_work);
         struct bio_list reads, writes;
 
         spin_lock(&ms->lock);
@@ -890,16 +902,6 @@ static void do_mirror(struct mirror_set *ms)
         do_writes(ms, &writes);
 }
 
-static void do_work(struct work_struct *ignored)
-{
-        struct mirror_set *ms;
-
-        down_read(&_mirror_sets_lock);
-        list_for_each_entry (ms, &_mirror_sets, list)
-                do_mirror(ms);
-        up_read(&_mirror_sets_lock);
-}
-
 /*-----------------------------------------------------------------
  * Target functions
  *---------------------------------------------------------------*/
@@ -931,6 +933,13 @@ static struct mirror_set *alloc_context(unsigned int nr_mirrors,
         ms->in_sync = 0;
         ms->default_mirror = &ms->mirror[DEFAULT_MIRROR];
 
+        ms->io_client = dm_io_client_create(DM_IO_PAGES);
+        if (IS_ERR(ms->io_client)) {
+                ti->error = "Error creating dm_io client";
+                kfree(ms);
+                return NULL;
+        }
+
         if (rh_init(&ms->rh, ms, dl, region_size, ms->nr_regions)) {
                 ti->error = "Error creating dirty region hash";
                 kfree(ms);
@@ -946,6 +955,7 @@ static void free_context(struct mirror_set *ms, struct dm_target *ti,
         while (m--)
                 dm_put_device(ti, ms->mirror[m].dev);
 
+        dm_io_client_destroy(ms->io_client);
         rh_exit(&ms->rh);
         kfree(ms);
 }
@@ -978,23 +988,6 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
         return 0;
 }
 
-static int add_mirror_set(struct mirror_set *ms)
-{
-        down_write(&_mirror_sets_lock);
-        list_add_tail(&ms->list, &_mirror_sets);
-        up_write(&_mirror_sets_lock);
-        wake();
-
-        return 0;
-}
-
-static void del_mirror_set(struct mirror_set *ms)
-{
-        down_write(&_mirror_sets_lock);
-        list_del(&ms->list);
-        up_write(&_mirror_sets_lock);
-}
-
 /*
  * Create dirty log: log_type #log_params <log_params>
  */
@@ -1037,16 +1030,55 @@ static struct dirty_log *create_dirty_log(struct dm_target *ti,
         return dl;
 }
 
+static int parse_features(struct mirror_set *ms, unsigned argc, char **argv,
+                          unsigned *args_used)
+{
+        unsigned num_features;
+        struct dm_target *ti = ms->ti;
+
+        *args_used = 0;
+
+        if (!argc)
+                return 0;
+
+        if (sscanf(argv[0], "%u", &num_features) != 1) {
+                ti->error = "Invalid number of features";
+                return -EINVAL;
+        }
+
+        argc--;
+        argv++;
+        (*args_used)++;
+
+        if (num_features > argc) {
+                ti->error = "Not enough arguments to support feature count";
+                return -EINVAL;
+        }
+
+        if (!strcmp("handle_errors", argv[0]))
+                ms->features |= DM_RAID1_HANDLE_ERRORS;
+        else {
+                ti->error = "Unrecognised feature requested";
+                return -EINVAL;
+        }
+
+        (*args_used)++;
+
+        return 0;
+}
+
 /*
  * Construct a mirror mapping:
  *
  * log_type #log_params <log_params>
  * #mirrors [mirror_path offset]{2,}
+ * [#features <features>]
  *
  * log_type is "core" or "disk"
  * #log_params is between 1 and 3
+ *
+ * If present, features must be "handle_errors".
  */
-#define DM_IO_PAGES 64
 static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 {
         int r;
@@ -1070,8 +1102,8 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
         argv++, argc--;
 
-        if (argc != nr_mirrors * 2) {
-                ti->error = "Wrong number of mirror arguments";
+        if (argc < nr_mirrors * 2) {
+                ti->error = "Too few mirror arguments";
                 dm_destroy_dirty_log(dl);
                 return -EINVAL;
         }
@@ -1096,13 +1128,37 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
         ti->private = ms;
         ti->split_io = ms->rh.region_size;
 
+        ms->kmirrord_wq = create_singlethread_workqueue("kmirrord");
+        if (!ms->kmirrord_wq) {
+                DMERR("couldn't start kmirrord");
+                free_context(ms, ti, m);
+                return -ENOMEM;
+        }
+        INIT_WORK(&ms->kmirrord_work, do_mirror);
+
+        r = parse_features(ms, argc, argv, &args_used);
+        if (r) {
+                free_context(ms, ti, ms->nr_mirrors);
+                return r;
+        }
+
+        argv += args_used;
+        argc -= args_used;
+
+        if (argc) {
+                ti->error = "Too many mirror arguments";
+                free_context(ms, ti, ms->nr_mirrors);
+                return -EINVAL;
+        }
+
         r = kcopyd_client_create(DM_IO_PAGES, &ms->kcopyd_client);
         if (r) {
+                destroy_workqueue(ms->kmirrord_wq);
                 free_context(ms, ti, ms->nr_mirrors);
                 return r;
         }
 
-        add_mirror_set(ms);
+        wake(ms);
         return 0;
 }
 
@@ -1110,8 +1166,9 @@ static void mirror_dtr(struct dm_target *ti)
 {
         struct mirror_set *ms = (struct mirror_set *) ti->private;
 
-        del_mirror_set(ms);
+        flush_workqueue(ms->kmirrord_wq);
         kcopyd_client_destroy(ms->kcopyd_client);
+        destroy_workqueue(ms->kmirrord_wq);
         free_context(ms, ti, ms->nr_mirrors);
 }
 
@@ -1127,7 +1184,7 @@ static void queue_bio(struct mirror_set *ms, struct bio *bio, int rw)
         spin_unlock(&ms->lock);
 
         if (should_wake)
-                wake();
+                wake(ms);
 }
 
 /*
@@ -1222,11 +1279,9 @@ static void mirror_resume(struct dm_target *ti)
 static int mirror_status(struct dm_target *ti, status_type_t type,
                          char *result, unsigned int maxlen)
 {
-        unsigned int m, sz;
+        unsigned int m, sz = 0;
         struct mirror_set *ms = (struct mirror_set *) ti->private;
 
-        sz = ms->rh.log->type->status(ms->rh.log, type, result, maxlen);
-
         switch (type) {
         case STATUSTYPE_INFO:
                 DMEMIT("%d ", ms->nr_mirrors);
@@ -1237,13 +1292,21 @@ static int mirror_status(struct dm_target *ti, status_type_t type,
                         (unsigned long long)ms->rh.log->type->
                                 get_sync_count(ms->rh.log),
                         (unsigned long long)ms->nr_regions);
+
+                sz = ms->rh.log->type->status(ms->rh.log, type, result, maxlen);
+
                 break;
 
         case STATUSTYPE_TABLE:
+                sz = ms->rh.log->type->status(ms->rh.log, type, result, maxlen);
+
                 DMEMIT("%d", ms->nr_mirrors);
                 for (m = 0; m < ms->nr_mirrors; m++)
                         DMEMIT(" %s %llu", ms->mirror[m].dev->name,
                                 (unsigned long long)ms->mirror[m].offset);
+
+                if (ms->features & DM_RAID1_HANDLE_ERRORS)
+                        DMEMIT(" 1 handle_errors");
         }
 
         return 0;
@@ -1251,7 +1314,7 @@ static int mirror_status(struct dm_target *ti, status_type_t type,
 
 static struct target_type mirror_target = {
         .name    = "mirror",
-        .version = {1, 0, 2},
+        .version = {1, 0, 3},
         .module  = THIS_MODULE,
         .ctr     = mirror_ctr,
         .dtr     = mirror_dtr,
@@ -1270,20 +1333,11 @@ static int __init dm_mirror_init(void)
         if (r)
                 return r;
 
-        _kmirrord_wq = create_singlethread_workqueue("kmirrord");
-        if (!_kmirrord_wq) {
-                DMERR("couldn't start kmirrord");
-                dm_dirty_log_exit();
-                return r;
-        }
-        INIT_WORK(&_kmirrord_work, do_work);
-
         r = dm_register_target(&mirror_target);
         if (r < 0) {
                 DMERR("%s: Failed to register mirror target",
                       mirror_target.name);
                 dm_dirty_log_exit();
-                destroy_workqueue(_kmirrord_wq);
         }
 
         return r;
@@ -1297,7 +1351,6 @@ static void __exit dm_mirror_exit(void)
         if (r < 0)
                 DMERR("%s: unregister failed %d", mirror_target.name, r);
 
-        destroy_workqueue(_kmirrord_wq);
         dm_dirty_log_exit();
 }
 
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 05befa91807a..2fc199b0016b 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -425,13 +425,15 @@ static void close_dev(struct dm_dev *d, struct mapped_device *md)
 }
 
 /*
- * If possible (ie. blk_size[major] is set), this checks an area
- * of a destination device is valid.
+ * If possible, this checks an area of a destination device is valid.
  */
 static int check_device_area(struct dm_dev *dd, sector_t start, sector_t len)
 {
-        sector_t dev_size;
-        dev_size = dd->bdev->bd_inode->i_size >> SECTOR_SHIFT;
+        sector_t dev_size = dd->bdev->bd_inode->i_size >> SECTOR_SHIFT;
+
+        if (!dev_size)
+                return 1;
+
         return ((start < dev_size) && (len <= (dev_size - start)));
 }
 
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 11a98df298ec..2717a355dc5b 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1236,6 +1236,7 @@ void dm_put(struct mapped_device *md)
                 free_dev(md);
         }
 }
+EXPORT_SYMBOL_GPL(dm_put);
 
 /*
  * Process the deferred bios
diff --git a/drivers/md/kcopyd.c b/drivers/md/kcopyd.c
index b46f6c575f7e..dbc234e3c69f 100644
--- a/drivers/md/kcopyd.c
+++ b/drivers/md/kcopyd.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2002 Sistina Software (UK) Limited.
+ * Copyright (C) 2006 Red Hat GmbH
  *
  * This file is released under the GPL.
  *
@@ -45,6 +46,8 @@ struct kcopyd_client {
         unsigned int nr_pages;
         unsigned int nr_free_pages;
 
+        struct dm_io_client *io_client;
+
         wait_queue_head_t destroyq;
         atomic_t nr_jobs;
 };
@@ -342,16 +345,20 @@ static void complete_io(unsigned long error, void *context)
 static int run_io_job(struct kcopyd_job *job)
 {
         int r;
+        struct dm_io_request io_req = {
+                .bi_rw = job->rw,
+                .mem.type = DM_IO_PAGE_LIST,
+                .mem.ptr.pl = job->pages,
+                .mem.offset = job->offset,
+                .notify.fn = complete_io,
+                .notify.context = job,
+                .client = job->kc->io_client,
+        };
 
         if (job->rw == READ)
-                r = dm_io_async(1, &job->source, job->rw,
-                                job->pages,
-                                job->offset, complete_io, job);
-
+                r = dm_io(&io_req, 1, &job->source, NULL);
         else
-                r = dm_io_async(job->num_dests, job->dests, job->rw,
-                                job->pages,
-                                job->offset, complete_io, job);
+                r = dm_io(&io_req, job->num_dests, job->dests, NULL);
 
         return r;
 }
@@ -670,8 +677,9 @@ int kcopyd_client_create(unsigned int nr_pages, struct kcopyd_client **result)
                 return r;
         }
 
-        r = dm_io_get(nr_pages);
-        if (r) {
+        kc->io_client = dm_io_client_create(nr_pages);
+        if (IS_ERR(kc->io_client)) {
+                r = PTR_ERR(kc->io_client);
                 client_free_pages(kc);
                 kfree(kc);
                 kcopyd_exit();
@@ -691,7 +699,7 @@ void kcopyd_client_destroy(struct kcopyd_client *kc)
         /* Wait for completion of all jobs submitted by this client. */
         wait_event(kc->destroyq, !atomic_read(&kc->nr_jobs));
 
-        dm_io_put(kc->nr_pages);
+        dm_io_client_destroy(kc->io_client);
         client_free_pages(kc);
         client_del(kc);
         kfree(kc);
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 2b4315d7e5d6..65814b0340cb 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -33,6 +33,7 @@
 */
 
 #include <linux/module.h>
+#include <linux/kernel.h>
 #include <linux/kthread.h>
 #include <linux/linkage.h>
 #include <linux/raid/md.h>
@@ -273,6 +274,7 @@ static mddev_t * mddev_find(dev_t unit)
         atomic_set(&new->active, 1);
         spin_lock_init(&new->write_lock);
         init_waitqueue_head(&new->sb_wait);
+        new->reshape_position = MaxSector;
 
         new->queue = blk_alloc_queue(GFP_KERNEL);
         if (!new->queue) {
@@ -589,14 +591,41 @@ abort:
         return ret;
 }
 
+
+static u32 md_csum_fold(u32 csum)
+{
+        csum = (csum & 0xffff) + (csum >> 16);
+        return (csum & 0xffff) + (csum >> 16);
+}
+
 static unsigned int calc_sb_csum(mdp_super_t * sb)
 {
+        u64 newcsum = 0;
+        u32 *sb32 = (u32*)sb;
+        int i;
         unsigned int disk_csum, csum;
 
         disk_csum = sb->sb_csum;
         sb->sb_csum = 0;
-        csum = csum_partial((void *)sb, MD_SB_BYTES, 0);
+
+        for (i = 0; i < MD_SB_BYTES/4 ; i++)
+                newcsum += sb32[i];
+        csum = (newcsum & 0xffffffff) + (newcsum>>32);
+
+
+#ifdef CONFIG_ALPHA
+        /* This used to use csum_partial, which was wrong for several
+         * reasons including that different results are returned on
+         * different architectures.  It isn't critical that we get exactly
+         * the same return value as before (we always csum_fold before
+         * testing, and that removes any differences).  However as we
+         * know that csum_partial always returned a 16bit value on
+         * alphas, do a fold to maximise conformity to previous behaviour.
+         */
+        sb->sb_csum = md_csum_fold(disk_csum);
+#else
         sb->sb_csum = disk_csum;
+#endif
         return csum;
 }
 
@@ -684,7 +713,7 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version
         if (sb->raid_disks <= 0)
                 goto abort;
 
-        if (csum_fold(calc_sb_csum(sb)) != csum_fold(sb->sb_csum)) {
+        if (md_csum_fold(calc_sb_csum(sb)) != md_csum_fold(sb->sb_csum)) {
                 printk(KERN_WARNING "md: invalid superblock checksum on %s\n",
                         b);
                 goto abort;
@@ -694,6 +723,17 @@ static int super_90_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version
         rdev->data_offset = 0;
         rdev->sb_size = MD_SB_BYTES;
 
+        if (sb->state & (1<<MD_SB_BITMAP_PRESENT)) {
+                if (sb->level != 1 && sb->level != 4
+                    && sb->level != 5 && sb->level != 6
+                    && sb->level != 10) {
+                        /* FIXME use a better test */
+                        printk(KERN_WARNING
+                               "md: bitmaps not supported for this level.\n");
+                        goto abort;
+                }
+        }
+
         if (sb->level == LEVEL_MULTIPATH)
                 rdev->desc_nr = -1;
         else
@@ -792,16 +832,8 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
                 mddev->max_disks = MD_SB_DISKS;
 
                 if (sb->state & (1<<MD_SB_BITMAP_PRESENT) &&
-                    mddev->bitmap_file == NULL) {
-                        if (mddev->level != 1 && mddev->level != 4
-                            && mddev->level != 5 && mddev->level != 6
-                            && mddev->level != 10) {
-                                /* FIXME use a better test */
-                                printk(KERN_WARNING "md: bitmaps not supported for this level.\n");
-                                return -EINVAL;
-                        }
+                    mddev->bitmap_file == NULL)
                         mddev->bitmap_offset = mddev->default_bitmap_offset;
-                }
 
         } else if (mddev->pers == NULL) {
                 /* Insist on good event counter while assembling */
@@ -1058,6 +1090,18 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version)
                        bdevname(rdev->bdev,b));
                 return -EINVAL;
         }
+        if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_BITMAP_OFFSET)) {
+                if (sb->level != cpu_to_le32(1) &&
+                    sb->level != cpu_to_le32(4) &&
+                    sb->level != cpu_to_le32(5) &&
+                    sb->level != cpu_to_le32(6) &&
+                    sb->level != cpu_to_le32(10)) {
+                        printk(KERN_WARNING
+                               "md: bitmaps not supported for this level.\n");
+                        return -EINVAL;
+                }
+        }
+
         rdev->preferred_minor = 0xffff;
         rdev->data_offset = le64_to_cpu(sb->data_offset);
         atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read));
@@ -1141,14 +1185,9 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
                 mddev->max_disks =  (4096-256)/2;
 
                 if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_BITMAP_OFFSET) &&
-                    mddev->bitmap_file == NULL ) {
-                        if (mddev->level != 1 && mddev->level != 5 && mddev->level != 6
-                            && mddev->level != 10) {
-                                printk(KERN_WARNING "md: bitmaps not supported for this level.\n");
-                                return -EINVAL;
-                        }
+                    mddev->bitmap_file == NULL )
                         mddev->bitmap_offset = (__s32)le32_to_cpu(sb->bitmap_offset);
-                }
+
                 if ((le32_to_cpu(sb->feature_map) & MD_FEATURE_RESHAPE_ACTIVE)) {
                         mddev->reshape_position = le64_to_cpu(sb->reshape_position);
                         mddev->delta_disks = le32_to_cpu(sb->delta_disks);
@@ -2204,6 +2243,10 @@ static ssize_t
 layout_show(mddev_t *mddev, char *page)
 {
         /* just a number, not meaningful for all levels */
+        if (mddev->reshape_position != MaxSector &&
+            mddev->layout != mddev->new_layout)
+                return sprintf(page, "%d (%d)\n",
+                               mddev->new_layout, mddev->layout);
         return sprintf(page, "%d\n", mddev->layout);
 }
 
@@ -2212,13 +2255,16 @@ layout_store(mddev_t *mddev, const char *buf, size_t len)
 {
         char *e;
         unsigned long n = simple_strtoul(buf, &e, 10);
-        if (mddev->pers)
-                return -EBUSY;
 
         if (!*buf || (*e && *e != '\n'))
                 return -EINVAL;
 
-        mddev->layout = n;
+        if (mddev->pers)
+                return -EBUSY;
+        if (mddev->reshape_position != MaxSector)
+                mddev->new_layout = n;
+        else
+                mddev->layout = n;
         return len;
 }
 static struct md_sysfs_entry md_layout =
@@ -2230,6 +2276,10 @@ raid_disks_show(mddev_t *mddev, char *page)
 {
         if (mddev->raid_disks == 0)
                 return 0;
+        if (mddev->reshape_position != MaxSector &&
+            mddev->delta_disks != 0)
+                return sprintf(page, "%d (%d)\n", mddev->raid_disks,
+                               mddev->raid_disks - mddev->delta_disks);
         return sprintf(page, "%d\n", mddev->raid_disks);
 }
 
@@ -2247,7 +2297,11 @@ raid_disks_store(mddev_t *mddev, const char *buf, size_t len)
 
         if (mddev->pers)
                 rv = update_raid_disks(mddev, n);
-        else
+        else if (mddev->reshape_position != MaxSector) {
+                int olddisks = mddev->raid_disks - mddev->delta_disks;
+                mddev->delta_disks = n - olddisks;
+                mddev->raid_disks = n;
+        } else
                 mddev->raid_disks = n;
         return rv ? rv : len;
 }
@@ -2257,6 +2311,10 @@ __ATTR(raid_disks, S_IRUGO|S_IWUSR, raid_disks_show, raid_disks_store);
 static ssize_t
 chunk_size_show(mddev_t *mddev, char *page)
 {
+        if (mddev->reshape_position != MaxSector &&
+            mddev->chunk_size != mddev->new_chunk)
+                return sprintf(page, "%d (%d)\n", mddev->new_chunk,
+                               mddev->chunk_size);
         return sprintf(page, "%d\n", mddev->chunk_size);
 }
 
@@ -2267,12 +2325,15 @@ chunk_size_store(mddev_t *mddev, const char *buf, size_t len)
         char *e;
         unsigned long n = simple_strtoul(buf, &e, 10);
 
-        if (mddev->pers)
-                return -EBUSY;
         if (!*buf || (*e && *e != '\n'))
                 return -EINVAL;
 
-        mddev->chunk_size = n;
+        if (mddev->pers)
+                return -EBUSY;
+        else if (mddev->reshape_position != MaxSector)
+                mddev->new_chunk = n;
+        else
+                mddev->chunk_size = n;
         return len;
 }
 static struct md_sysfs_entry md_chunk_size =
@@ -2637,8 +2698,7 @@ metadata_store(mddev_t *mddev, const char *buf, size_t len)
         minor = simple_strtoul(buf, &e, 10);
         if (e==buf || (*e && *e != '\n') )
                 return -EINVAL;
-        if (major >= sizeof(super_types)/sizeof(super_types[0]) ||
-            super_types[major].name == NULL)
+        if (major >= ARRAY_SIZE(super_types) || super_types[major].name == NULL)
                 return -ENOENT;
         mddev->major_version = major;
         mddev->minor_version = minor;
@@ -2859,6 +2919,37 @@ suspend_hi_store(mddev_t *mddev, const char *buf, size_t len)
 static struct md_sysfs_entry md_suspend_hi =
 __ATTR(suspend_hi, S_IRUGO|S_IWUSR, suspend_hi_show, suspend_hi_store);
 
+static ssize_t
+reshape_position_show(mddev_t *mddev, char *page)
+{
+        if (mddev->reshape_position != MaxSector)
+                return sprintf(page, "%llu\n",
+                               (unsigned long long)mddev->reshape_position);
+        strcpy(page, "none\n");
+        return 5;
+}
+
+static ssize_t
+reshape_position_store(mddev_t *mddev, const char *buf, size_t len)
+{
+        char *e;
+        unsigned long long new = simple_strtoull(buf, &e, 10);
+        if (mddev->pers)
+                return -EBUSY;
+        if (buf == e || (*e && *e != '\n'))
+                return -EINVAL;
+        mddev->reshape_position = new;
+        mddev->delta_disks = 0;
+        mddev->new_level = mddev->level;
+        mddev->new_layout = mddev->layout;
+        mddev->new_chunk = mddev->chunk_size;
+        return len;
+}
+
+static struct md_sysfs_entry md_reshape_position =
+__ATTR(reshape_position, S_IRUGO|S_IWUSR, reshape_position_show,
+       reshape_position_store);
+
 
 static struct attribute *md_default_attrs[] = {
         &md_level.attr,
@@ -2871,6 +2962,7 @@ static struct attribute *md_default_attrs[] = {
         &md_new_device.attr,
         &md_safe_delay.attr,
         &md_array_state.attr,
+        &md_reshape_position.attr,
         NULL,
 };
 
@@ -3409,6 +3501,7 @@ static int do_md_stop(mddev_t * mddev, int mode)
                 mddev->size = 0;
                 mddev->raid_disks = 0;
                 mddev->recovery_cp = 0;
+                mddev->reshape_position = MaxSector;
 
         } else if (mddev->pers)
                 printk(KERN_INFO "md: %s switched to read-only mode.\n",
@@ -4019,7 +4112,7 @@ static int set_array_info(mddev_t * mddev, mdu_array_info_t *info)
         if (info->raid_disks == 0) {
                 /* just setting version number for superblock loading */
                 if (info->major_version < 0 ||
-                    info->major_version >= sizeof(super_types)/sizeof(super_types[0]) ||
+                    info->major_version >= ARRAY_SIZE(super_types) ||
                     super_types[info->major_version].name == NULL) {
                         /* maybe try to auto-load a module? */
                         printk(KERN_INFO 
@@ -4941,15 +5034,6 @@ static int md_seq_open(struct inode *inode, struct file *file)
         return error;
 }
 
-static int md_seq_release(struct inode *inode, struct file *file)
-{
-        struct seq_file *m = file->private_data;
-        struct mdstat_info *mi = m->private;
-        m->private = NULL;
-        kfree(mi);
-        return seq_release(inode, file);
-}
-
 static unsigned int mdstat_poll(struct file *filp, poll_table *wait)
 {
         struct seq_file *m = filp->private_data;
@@ -4971,7 +5055,7 @@ static const struct file_operations md_seq_fops = {
         .open           = md_seq_open,
         .read           = seq_read,
         .llseek         = seq_lseek,
-        .release        = md_seq_release,
+        .release        = seq_release_private,
         .poll           = mdstat_poll,
 };
 
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 97ee870b265d..3a95cc5e029c 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -271,21 +271,25 @@ static int raid1_end_read_request(struct bio *bio, unsigned int bytes_done, int
          */
         update_head_pos(mirror, r1_bio);
 
-        if (uptodate || (conf->raid_disks - conf->mddev->degraded) <= 1) {
-                /*
-                 * Set R1BIO_Uptodate in our master bio, so that
-                 * we will return a good error code for to the higher
-                 * levels even if IO on some other mirrored buffer fails.
-                 *
-                 * The 'master' represents the composite IO operation to
-                 * user-side. So if something waits for IO, then it will
-                 * wait for the 'master' bio.
+        if (uptodate)
+                set_bit(R1BIO_Uptodate, &r1_bio->state);
+        else {
+                /* If all other devices have failed, we want to return
+                 * the error upwards rather than fail the last device.
+                 * Here we redefine "uptodate" to mean "Don't want to retry"
                  */
-                if (uptodate)
-                        set_bit(R1BIO_Uptodate, &r1_bio->state);
+                unsigned long flags;
+                spin_lock_irqsave(&conf->device_lock, flags);
+                if (r1_bio->mddev->degraded == conf->raid_disks ||
+                    (r1_bio->mddev->degraded == conf->raid_disks-1 &&
+                     !test_bit(Faulty, &conf->mirrors[mirror].rdev->flags)))
+                        uptodate = 1;
+                spin_unlock_irqrestore(&conf->device_lock, flags);
+        }
 
+        if (uptodate)
                 raid_end_bio_io(r1_bio);
-        } else {
+        else {
                 /*
                  * oops, read error:
                  */
@@ -992,13 +996,14 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev)
                 unsigned long flags;
                 spin_lock_irqsave(&conf->device_lock, flags);
                 mddev->degraded++;
+                set_bit(Faulty, &rdev->flags);
                 spin_unlock_irqrestore(&conf->device_lock, flags);
                 /*
                  * if recovery is running, make sure it aborts.
                  */
                 set_bit(MD_RECOVERY_ERR, &mddev->recovery);
-        }
-        set_bit(Faulty, &rdev->flags);
+        } else
+                set_bit(Faulty, &rdev->flags);
         set_bit(MD_CHANGE_DEVS, &mddev->flags);
         printk(KERN_ALERT "raid1: Disk failure on %s, disabling device. \n"
                 "       Operation continuing on %d devices\n",
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 8d59914f2057..061375ee6592 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -353,8 +353,8 @@ static int grow_stripes(raid5_conf_t *conf, int num)
         struct kmem_cache *sc;
         int devs = conf->raid_disks;
 
-        sprintf(conf->cache_name[0], "raid5/%s", mdname(conf->mddev));
-        sprintf(conf->cache_name[1], "raid5/%s-alt", mdname(conf->mddev));
+        sprintf(conf->cache_name[0], "raid5-%s", mdname(conf->mddev));
+        sprintf(conf->cache_name[1], "raid5-%s-alt", mdname(conf->mddev));
         conf->active_name = 0;
         sc = kmem_cache_create(conf->cache_name[conf->active_name],
                                sizeof(struct stripe_head)+(devs-1)*sizeof(struct r5dev),
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index 91d25798ae4a..3a80e0cc7369 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "Multimedia devices"
+        depends on HAS_IOMEM
 
 config VIDEO_DEV
         tristate "Video For Linux"
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-remote.c b/drivers/media/dvb/dvb-usb/dvb-usb-remote.c
index 68ed3a788083..9200a30dd1b9 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-remote.c
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-remote.c
@@ -3,7 +3,7 @@
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@desy.de)
  * see dvb-usb-init.c for copyright information.
  *
- * This file contains functions for initializing the the input-device and for handling remote-control-queries.
+ * This file contains functions for initializing the input-device and for handling remote-control-queries.
  */
 #include "dvb-usb-common.h"
 #include <linux/usb/input.h>
diff --git a/drivers/media/dvb/frontends/dib7000m.c b/drivers/media/dvb/frontends/dib7000m.c
index f5d40aa3d27f..f64546c6aeb5 100644
--- a/drivers/media/dvb/frontends/dib7000m.c
+++ b/drivers/media/dvb/frontends/dib7000m.c
@@ -266,7 +266,7 @@ static int dib7000m_sad_calib(struct dib7000m_state *state)
 {
 
 /* internal */
-//      dib7000m_write_word(state, 928, (3 << 14) | (1 << 12) | (524 << 0)); // sampling clock of the SAD is writting in set_bandwidth
+//      dib7000m_write_word(state, 928, (3 << 14) | (1 << 12) | (524 << 0)); // sampling clock of the SAD is written in set_bandwidth
         dib7000m_write_word(state, 929, (0 << 1) | (0 << 0));
         dib7000m_write_word(state, 930, 776); // 0.625*3.3 / 4096
 
diff --git a/drivers/media/dvb/frontends/dib7000p.c b/drivers/media/dvb/frontends/dib7000p.c
index 0349a4b5da3f..aece458cfe12 100644
--- a/drivers/media/dvb/frontends/dib7000p.c
+++ b/drivers/media/dvb/frontends/dib7000p.c
@@ -223,7 +223,7 @@ static int dib7000p_set_bandwidth(struct dvb_frontend *demod, u8 BW_Idx)
 static int dib7000p_sad_calib(struct dib7000p_state *state)
 {
 /* internal */
-//      dib7000p_write_word(state, 72, (3 << 14) | (1 << 12) | (524 << 0)); // sampling clock of the SAD is writting in set_bandwidth
+//      dib7000p_write_word(state, 72, (3 << 14) | (1 << 12) | (524 << 0)); // sampling clock of the SAD is written in set_bandwidth
         dib7000p_write_word(state, 73, (0 << 1) | (0 << 0));
         dib7000p_write_word(state, 74, 776); // 0.625*3.3 / 4096
 
diff --git a/drivers/media/dvb/frontends/tda10021.c b/drivers/media/dvb/frontends/tda10021.c
index 110536843e8e..e725f612a6b7 100644
--- a/drivers/media/dvb/frontends/tda10021.c
+++ b/drivers/media/dvb/frontends/tda10021.c
@@ -1,6 +1,6 @@
 /*
     TDA10021  - Single Chip Cable Channel Receiver driver module
-               used on the the Siemens DVB-C cards
+               used on the Siemens DVB-C cards
 
     Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
     Copyright (C) 2004 Markus Schulz <msc@antzsystem.de>
diff --git a/drivers/media/dvb/frontends/ves1x93.c b/drivers/media/dvb/frontends/ves1x93.c
index 54d7b07571b8..23fd0303c91b 100644
--- a/drivers/media/dvb/frontends/ves1x93.c
+++ b/drivers/media/dvb/frontends/ves1x93.c
@@ -306,7 +306,7 @@ static int ves1x93_read_status(struct dvb_frontend* fe, fe_status_t* status)
          * The ves1893 sometimes returns sync values that make no sense,
          * because, e.g., the SIGNAL bit is 0, while some of the higher
          * bits are 1 (and how can there be a CARRIER w/o a SIGNAL?).
-         * Tests showed that the the VITERBI and SYNC bits are returned
+         * Tests showed that the VITERBI and SYNC bits are returned
          * reliably, while the SIGNAL and CARRIER bits ar sometimes wrong.
          * If such a case occurs, we read the value again, until we get a
          * valid value.
diff --git a/drivers/media/video/em28xx/em28xx-i2c.c b/drivers/media/video/em28xx/em28xx-i2c.c
index 563a8319e608..54ccc6e1f92e 100644
--- a/drivers/media/video/em28xx/em28xx-i2c.c
+++ b/drivers/media/video/em28xx/em28xx-i2c.c
@@ -70,7 +70,7 @@ static int em2800_i2c_send_max4(struct em28xx *dev, unsigned char addr,
 
         ret = dev->em28xx_write_regs(dev, 4 - len, &b2[4 - len], 2 + len);
         if (ret != 2 + len) {
-                em28xx_warn("writting to i2c device failed (error=%i)\n", ret);
+                em28xx_warn("writing to i2c device failed (error=%i)\n", ret);
                 return -EIO;
         }
         for (write_timeout = EM2800_I2C_WRITE_TIMEOUT; write_timeout > 0;
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index bec67609500f..2c7b158ce7e1 100644
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -1729,7 +1729,7 @@ static int em28xx_usb_probe(struct usb_interface *interface,
 
         endpoint = &interface->cur_altsetting->endpoint[1].desc;
 
-        /* check if the the device has the iso in endpoint at the correct place */
+        /* check if the device has the iso in endpoint at the correct place */
         if ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) !=
             USB_ENDPOINT_XFER_ISOC) {
                 em28xx_err(DRIVER_NAME " probing error: endpoint is non-ISO endpoint!\n");
diff --git a/drivers/media/video/pwc/philips.txt b/drivers/media/video/pwc/philips.txt
index f5e848410311..f9f3584281d8 100644
--- a/drivers/media/video/pwc/philips.txt
+++ b/drivers/media/video/pwc/philips.txt
@@ -54,9 +54,9 @@ fps
    Specifies the desired framerate. Is an integer in the range of 4-30.
 
 fbufs
-   This paramter specifies the number of internal buffers to use for storing
+   This parameter specifies the number of internal buffers to use for storing
    frames from the cam. This will help if the process that reads images from
-   the cam is a bit slow or momentarely busy. However, on slow machines it
+   the cam is a bit slow or momentarily busy. However, on slow machines it
    only introduces lag, so choose carefully. The default is 3, which is
    reasonable. You can set it between 2 and 5.
 
@@ -209,7 +209,7 @@ trace
 
      128   0x80   PWCX debugging                                      Off
 
-   For example, to trace the open() & read() fuctions, sum 8 + 4 = 12,
+   For example, to trace the open() & read() functions, sum 8 + 4 = 12,
    so you would supply trace=12 during insmod or modprobe. If
    you want to turn the initialization and probing tracing off, set trace=0.
    The default value for trace is 35 (0x23).
diff --git a/drivers/media/video/usbvideo/vicam.c b/drivers/media/video/usbvideo/vicam.c
index 876fd2768242..982b115193f8 100644
--- a/drivers/media/video/usbvideo/vicam.c
+++ b/drivers/media/video/usbvideo/vicam.c
@@ -28,7 +28,7 @@
  *
  * Portions of this code were also copied from usbvideo.c
  *
- * Special thanks to the the whole team at Sourceforge for help making
+ * Special thanks to the whole team at Sourceforge for help making
  * this driver become a reality.  Notably:
  * Andy Armstrong who reverse engineered the color encoding and
  * Pavel Machek and Chris Cheney who worked on reverse engineering the
diff --git a/drivers/message/fusion/Kconfig b/drivers/message/fusion/Kconfig
index 71037f91c222..c88cc75ab49b 100644
--- a/drivers/message/fusion/Kconfig
+++ b/drivers/message/fusion/Kconfig
@@ -1,5 +1,6 @@
 
 menu "Fusion MPT device support"
+        depends on PCI
 
 config FUSION
         bool
diff --git a/drivers/message/fusion/lsi/mpi_history.txt b/drivers/message/fusion/lsi/mpi_history.txt
index d6b4c607453b..ddc7ae029dd3 100644
--- a/drivers/message/fusion/lsi/mpi_history.txt
+++ b/drivers/message/fusion/lsi/mpi_history.txt
@@ -571,7 +571,7 @@ mpi_fc.h
  *  11-02-00  01.01.01  Original release for post 1.0 work
  *  12-04-00  01.01.02  Added messages for Common Transport Send and
  *                      Primitive Send.
- *  01-09-01  01.01.03  Modifed some of the new flags to have an MPI prefix
+ *  01-09-01  01.01.03  Modified some of the new flags to have an MPI prefix
  *                      and modified the FcPrimitiveSend flags.
  *  01-25-01  01.01.04  Move InitiatorIndex in LinkServiceRsp reply to a larger
  *                      field.
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 97471af4309c..5021d1a2a1d4 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -3585,7 +3585,7 @@ initChainBuffers(MPT_ADAPTER *ioc)
          * index = chain_idx
          *
          * Calculate the number of chain buffers needed(plus 1) per I/O
-         * then multiply the the maximum number of simultaneous cmds
+         * then multiply the maximum number of simultaneous cmds
          *
          * num_sge = num sge in request frame + last chain buffer
          * scale = num sge per chain buffer if no chain element
diff --git a/drivers/message/i2o/Kconfig b/drivers/message/i2o/Kconfig
index 6443392bffff..f4ac21e5771e 100644
--- a/drivers/message/i2o/Kconfig
+++ b/drivers/message/i2o/Kconfig
@@ -1,5 +1,6 @@
 
 menu "I2O device support"
+        depends on PCI
 
 config I2O
         tristate "I2O support"
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index ab6e985275b2..a20a51efe118 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "Multifunction device drivers"
+        depends on HAS_IOMEM
 
 config MFD_SM501
         tristate "Support for Silicon Motion SM501"
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 877e7909a0e5..2f2fbffafbe0 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -130,7 +130,7 @@ config SONY_LAPTOP
 
           Read <file:Documentation/sony-laptop.txt> for more information.
 
-config SONY_LAPTOP_OLD
+config SONYPI_COMPAT
         bool "Sonypi compatibility"
         depends on SONY_LAPTOP
           ---help---
diff --git a/drivers/misc/asus-laptop.c b/drivers/misc/asus-laptop.c
index 65c32a95e121..4f9060a2a2f2 100644
--- a/drivers/misc/asus-laptop.c
+++ b/drivers/misc/asus-laptop.c
@@ -30,7 +30,7 @@
  *  Eric Burghard  - LED display support for W1N
  *  Josh Green     - Light Sens support
  *  Thomas Tuttle  - His first patch for led support was very helpfull
- *
+ *  Sam Lin        - GPS support
  */
 
 #include <linux/autoconf.h>
@@ -48,7 +48,7 @@
 #include <acpi/acpi_bus.h>
 #include <asm/uaccess.h>
 
-#define ASUS_LAPTOP_VERSION "0.41"
+#define ASUS_LAPTOP_VERSION "0.42"
 
 #define ASUS_HOTK_NAME          "Asus Laptop Support"
 #define ASUS_HOTK_CLASS         "hotkey"
@@ -83,6 +83,7 @@
 #define PLED_ON     0x20        //Phone LED
 #define GLED_ON     0x40        //Gaming LED
 #define LCD_ON      0x80        //LCD backlight
+#define GPS_ON      0x100       //GPS
 
 #define ASUS_LOG    ASUS_HOTK_FILE ": "
 #define ASUS_ERR    KERN_ERR    ASUS_LOG
@@ -148,7 +149,7 @@ ASUS_HANDLE(display_set, ASUS_HOTK_PREFIX "SDSP");
 ASUS_HANDLE(display_get, "\\_SB.PCI0.P0P1.VGA.GETD",    /*  A6B, A6K A6R A7D F3JM L4R M6R A3G
                                                            M6A M6V VX-1 V6J V6V W3Z */
             "\\_SB.PCI0.P0P2.VGA.GETD", /* A3E A4K, A4D A4L A6J A7J A8J Z71V M9V
-                                           S5A M5A z33A W1Jc W2V */
+                                           S5A M5A z33A W1Jc W2V G1 */
             "\\_SB.PCI0.P0P3.VGA.GETD", /* A6V A6Q */
             "\\_SB.PCI0.P0PA.VGA.GETD", /* A6T, A6M */
             "\\_SB.PCI0.PCI1.VGAC.NMAP",        /* L3C */
@@ -162,6 +163,12 @@ ASUS_HANDLE(display_get, "\\_SB.PCI0.P0P1.VGA.GETD",	/*  A6B, A6K A6R A7D F3JM L
 ASUS_HANDLE(ls_switch, ASUS_HOTK_PREFIX "ALSC");        /* Z71A Z71V */
 ASUS_HANDLE(ls_level, ASUS_HOTK_PREFIX "ALSL"); /* Z71A Z71V */
 
+/* GPS */
+/* R2H use different handle for GPS on/off */
+ASUS_HANDLE(gps_on, ASUS_HOTK_PREFIX "SDON");   /* R2H */
+ASUS_HANDLE(gps_off, ASUS_HOTK_PREFIX "SDOF");  /* R2H */
+ASUS_HANDLE(gps_status, ASUS_HOTK_PREFIX "GPST");
+
 /*
  * This is the main structure, we can use it to store anything interesting
  * about the hotk device
@@ -278,12 +285,28 @@ static int read_wireless_status(int mask)
         return (hotk->status & mask) ? 1 : 0;
 }
 
+static int read_gps_status(void)
+{
+        ulong status;
+        acpi_status rv = AE_OK;
+
+        rv = acpi_evaluate_integer(gps_status_handle, NULL, NULL, &status);
+        if (ACPI_FAILURE(rv))
+                printk(ASUS_WARNING "Error reading GPS status\n");
+        else
+                return status ? 1 : 0;
+
+        return (hotk->status & GPS_ON) ? 1 : 0;
+}
+
 /* Generic LED functions */
 static int read_status(int mask)
 {
         /* There is a special method for both wireless devices */
         if (mask == BT_ON || mask == WL_ON)
                 return read_wireless_status(mask);
+        else if (mask == GPS_ON)
+                return read_gps_status();
 
         return (hotk->status & mask) ? 1 : 0;
 }
@@ -299,6 +322,10 @@ static void write_status(acpi_handle handle, int out, int mask)
         case GLED_ON:
                 out = (out & 0x1) + 1;
                 break;
+        case GPS_ON:
+                handle = (out) ? gps_on_handle : gps_off_handle;
+                out = 0x02;
+                break;
         default:
                 out &= 0x1;
                 break;
@@ -667,6 +694,21 @@ static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr,
         return rv;
 }
 
+/*
+ * GPS
+ */
+static ssize_t show_gps(struct device *dev,
+                        struct device_attribute *attr, char *buf)
+{
+        return sprintf(buf, "%d\n", read_status(GPS_ON));
+}
+
+static ssize_t store_gps(struct device *dev, struct device_attribute *attr,
+                         const char *buf, size_t count)
+{
+        return store_status(buf, count, NULL, GPS_ON);
+}
+
 static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
 {
         /* TODO Find a better way to handle events count. */
@@ -715,6 +757,7 @@ static ASUS_CREATE_DEVICE_ATTR(display);
 static ASUS_CREATE_DEVICE_ATTR(ledd);
 static ASUS_CREATE_DEVICE_ATTR(ls_switch);
 static ASUS_CREATE_DEVICE_ATTR(ls_level);
+static ASUS_CREATE_DEVICE_ATTR(gps);
 
 static struct attribute *asuspf_attributes[] = {
         &dev_attr_infos.attr,
@@ -724,6 +767,7 @@ static struct attribute *asuspf_attributes[] = {
         &dev_attr_ledd.attr,
         &dev_attr_ls_switch.attr,
         &dev_attr_ls_level.attr,
+        &dev_attr_gps.attr,
         NULL
 };
 
@@ -763,6 +807,9 @@ static void asus_hotk_add_fs(void)
                 ASUS_SET_DEVICE_ATTR(ls_level, 0644, show_lslvl, store_lslvl);
                 ASUS_SET_DEVICE_ATTR(ls_switch, 0644, show_lssw, store_lssw);
         }
+
+        if (gps_status_handle && gps_on_handle && gps_off_handle)
+                ASUS_SET_DEVICE_ATTR(gps, 0644, show_gps, store_gps);
 }
 
 static int asus_handle_init(char *name, acpi_handle * handle,
@@ -890,9 +937,13 @@ static int asus_hotk_get_info(void)
 
         /* There is a lot of models with "ALSL", but a few get
            a real light sens, so we need to check it. */
-        if (ASUS_HANDLE_INIT(ls_switch))
+        if (!ASUS_HANDLE_INIT(ls_switch))
                 ASUS_HANDLE_INIT(ls_level);
 
+        ASUS_HANDLE_INIT(gps_on);
+        ASUS_HANDLE_INIT(gps_off);
+        ASUS_HANDLE_INIT(gps_status);
+
         kfree(model);
 
         return AE_OK;
@@ -950,7 +1001,7 @@ static int asus_hotk_add(struct acpi_device *device)
          * We install the handler, it will receive the hotk in parameter, so, we
          * could add other data to the hotk struct
          */
-        status = acpi_install_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY,
+        status = acpi_install_notify_handler(hotk->handle, ACPI_ALL_NOTIFY,
                                              asus_hotk_notify, hotk);
         if (ACPI_FAILURE(status))
                 printk(ASUS_ERR "Error installing notify handler\n");
@@ -981,6 +1032,9 @@ static int asus_hotk_add(struct acpi_device *device)
         if (ls_level_handle)
                 set_light_sens_level(hotk->light_level);
 
+        /* GPS is on by default */
+        write_status(NULL, 1, GPS_ON);
+
       end:
         if (result) {
                 kfree(hotk->name);
@@ -997,7 +1051,7 @@ static int asus_hotk_remove(struct acpi_device *device, int type)
         if (!device || !acpi_driver_data(device))
                 return -EINVAL;
 
-        status = acpi_remove_notify_handler(hotk->handle, ACPI_SYSTEM_NOTIFY,
+        status = acpi_remove_notify_handler(hotk->handle, ACPI_ALL_NOTIFY,
                                             asus_hotk_notify);
         if (ACPI_FAILURE(status))
                 printk(ASUS_ERR "Error removing notify handler\n");
diff --git a/drivers/misc/msi-laptop.c b/drivers/misc/msi-laptop.c
index 68c4b58525ba..41e901f53e7c 100644
--- a/drivers/misc/msi-laptop.c
+++ b/drivers/misc/msi-laptop.c
@@ -85,7 +85,7 @@ static int set_lcd_level(int level)
         buf[0] = 0x80;
         buf[1] = (u8) (level*31);
 
-        return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf), NULL, 0);
+        return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf), NULL, 0, 1);
 }
 
 static int get_lcd_level(void)
@@ -93,7 +93,7 @@ static int get_lcd_level(void)
         u8 wdata = 0, rdata;
         int result;
 
-        result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1);
+        result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1, 1);
         if (result < 0)
                 return result;
 
@@ -105,7 +105,7 @@ static int get_auto_brightness(void)
         u8 wdata = 4, rdata;
         int result;
 
-        result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1);
+        result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1, &rdata, 1, 1);
         if (result < 0)
                 return result;
 
@@ -119,14 +119,14 @@ static int set_auto_brightness(int enable)
 
         wdata[0] = 4;
 
-        result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1, &rdata, 1);
+        result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1, &rdata, 1, 1);
         if (result < 0)
                 return result;
 
         wdata[0] = 0x84;
         wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
 
-        return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2, NULL, 0);
+        return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2, NULL, 0, 1);
 }
 
 static int get_wireless_state(int *wlan, int *bluetooth)
@@ -134,7 +134,7 @@ static int get_wireless_state(int *wlan, int *bluetooth)
         u8 wdata = 0, rdata;
         int result;
 
-        result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
+        result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1, 1);
         if (result < 0)
                 return -1;
 
diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index c15c1f61bd1b..8ee0321ef1c8 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -63,7 +63,7 @@
 #include <asm/uaccess.h>
 #include <linux/sonypi.h>
 #include <linux/sony-laptop.h>
-#ifdef CONFIG_SONY_LAPTOP_OLD
+#ifdef CONFIG_SONYPI_COMPAT
 #include <linux/poll.h>
 #include <linux/miscdevice.h>
 #endif
@@ -114,7 +114,7 @@ MODULE_PARM_DESC(camera,
                  "set this to 1 to enable Motion Eye camera controls "
                  "(only use it if you have a C1VE or C1VN model)");
 
-#ifdef CONFIG_SONY_LAPTOP_OLD
+#ifdef CONFIG_SONYPI_COMPAT
 static int minor = -1;
 module_param(minor, int, 0);
 MODULE_PARM_DESC(minor,
@@ -1504,7 +1504,7 @@ static struct attribute_group spic_attribute_group = {
 };
 
 /******** SONYPI compatibility **********/
-#ifdef CONFIG_SONY_LAPTOP_OLD
+#ifdef CONFIG_SONYPI_COMPAT
 
 /* battery / brightness / temperature  addresses */
 #define SONYPI_BAT_FLAGS        0x81
@@ -1798,7 +1798,7 @@ static void sonypi_compat_exit(void)
 static int sonypi_compat_init(void) { return 0; }
 static void sonypi_compat_exit(void) { }
 static void sonypi_compat_report_event(u8 event) { }
-#endif /* CONFIG_SONY_LAPTOP_OLD */
+#endif /* CONFIG_SONYPI_COMPAT */
 
 /*
  * ACPI callbacks
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index 45b7d53b949c..c0b41e8bcd9d 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -4,6 +4,7 @@
 
 menuconfig MMC
         tristate "MMC/SD card support"
+        depends on HAS_IOMEM
         help
           MMC is the "multi-media card" bus protocol.
 
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index b6c16704aaab..7385acfa1dd9 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -501,9 +501,9 @@ void mmc_detect_change(struct mmc_host *host, unsigned long delay)
 {
 #ifdef CONFIG_MMC_DEBUG
         unsigned long flags;
-        spin_lock_irqsave(host->lock, flags);
+        spin_lock_irqsave(&host->lock, flags);
         BUG_ON(host->removed);
-        spin_unlock_irqrestore(host->lock, flags);
+        spin_unlock_irqrestore(&host->lock, flags);
 #endif
 
         mmc_schedule_delayed_work(&host->detect, delay);
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index c1b47db29bd2..fbec8cd55e38 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -2,6 +2,7 @@
 
 menuconfig MTD
         tristate "Memory Technology Device (MTD) support"
+        depends on HAS_IOMEM
         help
           Memory Technology Devices are flash, RAM and similar chips, often
           used for solid state file systems on embedded devices. This option
diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig
index d28e0fc85e12..479d32b57a1e 100644
--- a/drivers/mtd/chips/Kconfig
+++ b/drivers/mtd/chips/Kconfig
@@ -1,5 +1,4 @@
 # drivers/mtd/chips/Kconfig
-# $Id: Kconfig,v 1.18 2005/11/07 11:14:22 gleixner Exp $
 
 menu "RAM/ROM/Flash chip drivers"
         depends on MTD!=n
@@ -231,45 +230,6 @@ config MTD_ABSENT
           the system regardless of media presence.  Device nodes created
           with this driver will return -ENODEV upon access.
 
-config MTD_OBSOLETE_CHIPS
-        bool "Older (theoretically obsoleted now) drivers for non-CFI chips"
-        help
-          This option does not enable any code directly, but will allow you to
-          select some other chip drivers which are now considered obsolete,
-          because the generic CONFIG_JEDECPROBE code above should now detect
-          the chips which are supported by these drivers, and allow the generic
-          CFI-compatible drivers to drive the chips. Say 'N' here unless you have
-          already tried the CONFIG_JEDECPROBE method and reported its failure
-          to the MTD mailing list at <linux-mtd@lists.infradead.org>
-
-config MTD_AMDSTD
-        tristate "AMD compatible flash chip support (non-CFI)"
-        depends on MTD_OBSOLETE_CHIPS && BROKEN
-        help
-          This option enables support for flash chips using AMD-compatible
-          commands, including some which are not CFI-compatible and hence
-          cannot be used with the CONFIG_MTD_CFI_AMDSTD option.
-
-          It also works on AMD compatible chips that do conform to CFI.
-
-config MTD_SHARP
-        tristate "pre-CFI Sharp chip support"
-        depends on MTD_OBSOLETE_CHIPS
-        help
-          This option enables support for flash chips using Sharp-compatible
-          commands, including some which are not CFI-compatible and hence
-          cannot be used with the CONFIG_MTD_CFI_INTELxxx options.
-
-config MTD_JEDEC
-        tristate "JEDEC device support"
-        depends on MTD_OBSOLETE_CHIPS && BROKEN
-        help
-          Enable older JEDEC flash interface devices for self
-          programming flash.  It is commonly used in older AMD chips.  It is
-          only called JEDEC because the JEDEC association
-          <http://www.jedec.org/> distributes the identification codes for the
-          chips.
-
 config MTD_XIP
         bool "XIP aware MTD support"
         depends on !SMP && (MTD_CFI_INTELEXT || MTD_CFI_AMDSTD) && EXPERIMENTAL && ARCH_MTD_XIP
diff --git a/drivers/mtd/chips/Makefile b/drivers/mtd/chips/Makefile
index 75bc1c2a0f43..36582412ccda 100644
--- a/drivers/mtd/chips/Makefile
+++ b/drivers/mtd/chips/Makefile
@@ -1,19 +1,15 @@
 #
 # linux/drivers/chips/Makefile
 #
-# $Id: Makefile.common,v 1.5 2005/11/07 11:14:22 gleixner Exp $
 
 obj-$(CONFIG_MTD)               += chipreg.o
-obj-$(CONFIG_MTD_AMDSTD)        += amd_flash.o
 obj-$(CONFIG_MTD_CFI)           += cfi_probe.o
 obj-$(CONFIG_MTD_CFI_UTIL)      += cfi_util.o
 obj-$(CONFIG_MTD_CFI_STAA)      += cfi_cmdset_0020.o
 obj-$(CONFIG_MTD_CFI_AMDSTD)    += cfi_cmdset_0002.o
 obj-$(CONFIG_MTD_CFI_INTELEXT)  += cfi_cmdset_0001.o
 obj-$(CONFIG_MTD_GEN_PROBE)     += gen_probe.o
-obj-$(CONFIG_MTD_JEDEC)         += jedec.o
 obj-$(CONFIG_MTD_JEDECPROBE)    += jedec_probe.o
 obj-$(CONFIG_MTD_RAM)           += map_ram.o
 obj-$(CONFIG_MTD_ROM)           += map_rom.o
-obj-$(CONFIG_MTD_SHARP)         += sharp.o
 obj-$(CONFIG_MTD_ABSENT)        += map_absent.o
diff --git a/drivers/mtd/chips/amd_flash.c b/drivers/mtd/chips/amd_flash.c
deleted file mode 100644
index e7999f15d85a..000000000000
--- a/drivers/mtd/chips/amd_flash.c
+++ /dev/null
@@ -1,1396 +0,0 @@
-/*
- * MTD map driver for AMD compatible flash chips (non-CFI)
- *
- * Author: Jonas Holmberg <jonas.holmberg@axis.com>
- *
- * $Id: amd_flash.c,v 1.28 2005/11/07 11:14:22 gleixner Exp $
- *
- * Copyright (c) 2001 Axis Communications AB
- *
- * This file is under GPL.
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/flashchip.h>
-
-/* There's no limit. It exists only to avoid realloc. */
-#define MAX_AMD_CHIPS 8
-
-#define DEVICE_TYPE_X8  (8 / 8)
-#define DEVICE_TYPE_X16 (16 / 8)
-#define DEVICE_TYPE_X32 (32 / 8)
-
-/* Addresses */
-#define ADDR_MANUFACTURER               0x0000
-#define ADDR_DEVICE_ID                  0x0001
-#define ADDR_SECTOR_LOCK                0x0002
-#define ADDR_HANDSHAKE                  0x0003
-#define ADDR_UNLOCK_1                   0x0555
-#define ADDR_UNLOCK_2                   0x02AA
-
-/* Commands */
-#define CMD_UNLOCK_DATA_1               0x00AA
-#define CMD_UNLOCK_DATA_2               0x0055
-#define CMD_MANUFACTURER_UNLOCK_DATA    0x0090
-#define CMD_UNLOCK_BYPASS_MODE          0x0020
-#define CMD_PROGRAM_UNLOCK_DATA         0x00A0
-#define CMD_RESET_DATA                  0x00F0
-#define CMD_SECTOR_ERASE_UNLOCK_DATA    0x0080
-#define CMD_SECTOR_ERASE_UNLOCK_DATA_2  0x0030
-
-#define CMD_UNLOCK_SECTOR               0x0060
-
-/* Manufacturers */
-#define MANUFACTURER_AMD        0x0001
-#define MANUFACTURER_ATMEL      0x001F
-#define MANUFACTURER_FUJITSU    0x0004
-#define MANUFACTURER_ST         0x0020
-#define MANUFACTURER_SST        0x00BF
-#define MANUFACTURER_TOSHIBA    0x0098
-
-/* AMD */
-#define AM29F800BB      0x2258
-#define AM29F800BT      0x22D6
-#define AM29LV800BB     0x225B
-#define AM29LV800BT     0x22DA
-#define AM29LV160DT     0x22C4
-#define AM29LV160DB     0x2249
-#define AM29BDS323D     0x22D1
-
-/* Atmel */
-#define AT49xV16x       0x00C0
-#define AT49xV16xT      0x00C2
-
-/* Fujitsu */
-#define MBM29LV160TE    0x22C4
-#define MBM29LV160BE    0x2249
-#define MBM29LV800BB    0x225B
-
-/* ST - www.st.com */
-#define M29W800T        0x00D7
-#define M29W160DT       0x22C4
-#define M29W160DB       0x2249
-
-/* SST */
-#define SST39LF800      0x2781
-#define SST39LF160      0x2782
-
-/* Toshiba */
-#define TC58FVT160      0x00C2
-#define TC58FVB160      0x0043
-
-#define D6_MASK 0x40
-
-struct amd_flash_private {
-        int device_type;
-        int interleave;
-        int numchips;
-        unsigned long chipshift;
-        struct flchip chips[0];
-};
-
-struct amd_flash_info {
-        const __u16 mfr_id;
-        const __u16 dev_id;
-        const char *name;
-        const u_long size;
-        const int numeraseregions;
-        const struct mtd_erase_region_info regions[4];
-};
-
-
-
-static int amd_flash_read(struct mtd_info *, loff_t, size_t, size_t *,
-                          u_char *);
-static int amd_flash_write(struct mtd_info *, loff_t, size_t, size_t *,
-                           const u_char *);
-static int amd_flash_erase(struct mtd_info *, struct erase_info *);
-static void amd_flash_sync(struct mtd_info *);
-static int amd_flash_suspend(struct mtd_info *);
-static void amd_flash_resume(struct mtd_info *);
-static void amd_flash_destroy(struct mtd_info *);
-static struct mtd_info *amd_flash_probe(struct map_info *map);
-
-
-static struct mtd_chip_driver amd_flash_chipdrv = {
-        .probe = amd_flash_probe,
-        .destroy = amd_flash_destroy,
-        .name = "amd_flash",
-        .module = THIS_MODULE
-};
-
-static inline __u32 wide_read(struct map_info *map, __u32 addr)
-{
-        if (map->buswidth == 1) {
-                return map_read8(map, addr);
-        } else if (map->buswidth == 2) {
-                return map_read16(map, addr);
-        } else if (map->buswidth == 4) {
-                return map_read32(map, addr);
-        }
-
-        return 0;
-}
-
-static inline void wide_write(struct map_info *map, __u32 val, __u32 addr)
-{
-        if (map->buswidth == 1) {
-                map_write8(map, val, addr);
-        } else if (map->buswidth == 2) {
-                map_write16(map, val, addr);
-        } else if (map->buswidth == 4) {
-                map_write32(map, val, addr);
-        }
-}
-
-static inline __u32 make_cmd(struct map_info *map, __u32 cmd)
-{
-        const struct amd_flash_private *private = map->fldrv_priv;
-        if ((private->interleave == 2) &&
-            (private->device_type == DEVICE_TYPE_X16)) {
-                cmd |= (cmd << 16);
-        }
-
-        return cmd;
-}
-
-static inline void send_unlock(struct map_info *map, unsigned long base)
-{
-        wide_write(map, (CMD_UNLOCK_DATA_1 << 16) | CMD_UNLOCK_DATA_1,
-                   base + (map->buswidth * ADDR_UNLOCK_1));
-        wide_write(map, (CMD_UNLOCK_DATA_2 << 16) | CMD_UNLOCK_DATA_2,
-                   base + (map->buswidth * ADDR_UNLOCK_2));
-}
-
-static inline void send_cmd(struct map_info *map, unsigned long base, __u32 cmd)
-{
-        send_unlock(map, base);
-        wide_write(map, make_cmd(map, cmd),
-                   base + (map->buswidth * ADDR_UNLOCK_1));
-}
-
-static inline void send_cmd_to_addr(struct map_info *map, unsigned long base,
-                                    __u32 cmd, unsigned long addr)
-{
-        send_unlock(map, base);
-        wide_write(map, make_cmd(map, cmd), addr);
-}
-
-static inline int flash_is_busy(struct map_info *map, unsigned long addr,
-                                int interleave)
-{
-
-        if ((interleave == 2) && (map->buswidth == 4)) {
-                __u32 read1, read2;
-
-                read1 = wide_read(map, addr);
-                read2 = wide_read(map, addr);
-
-                return (((read1 >> 16) & D6_MASK) !=
-                        ((read2 >> 16) & D6_MASK)) ||
-                       (((read1 & 0xffff) & D6_MASK) !=
-                        ((read2 & 0xffff) & D6_MASK));
-        }
-
-        return ((wide_read(map, addr) & D6_MASK) !=
-                (wide_read(map, addr) & D6_MASK));
-}
-
-static inline void unlock_sector(struct map_info *map, unsigned long sect_addr,
-                                 int unlock)
-{
-        /* Sector lock address. A6 = 1 for unlock, A6 = 0 for lock */
-        int SLA = unlock ?
-                (sect_addr |  (0x40 * map->buswidth)) :
-                (sect_addr & ~(0x40 * map->buswidth)) ;
-
-        __u32 cmd = make_cmd(map, CMD_UNLOCK_SECTOR);
-
-        wide_write(map, make_cmd(map, CMD_RESET_DATA), 0);
-        wide_write(map, cmd, SLA); /* 1st cycle: write cmd to any address */
-        wide_write(map, cmd, SLA); /* 2nd cycle: write cmd to any address */
-        wide_write(map, cmd, SLA); /* 3rd cycle: write cmd to SLA */
-}
-
-static inline int is_sector_locked(struct map_info *map,
-                                   unsigned long sect_addr)
-{
-        int status;
-
-        wide_write(map, CMD_RESET_DATA, 0);
-        send_cmd(map, sect_addr, CMD_MANUFACTURER_UNLOCK_DATA);
-
-        /* status is 0x0000 for unlocked and 0x0001 for locked */
-        status = wide_read(map, sect_addr + (map->buswidth * ADDR_SECTOR_LOCK));
-        wide_write(map, CMD_RESET_DATA, 0);
-        return status;
-}
-
-static int amd_flash_do_unlock(struct mtd_info *mtd, loff_t ofs, size_t len,
-                               int is_unlock)
-{
-        struct map_info *map;
-        struct mtd_erase_region_info *merip;
-        int eraseoffset, erasesize, eraseblocks;
-        int i;
-        int retval = 0;
-        int lock_status;
-
-        map = mtd->priv;
-
-        /* Pass the whole chip through sector by sector and check for each
-           sector if the sector and the given interval overlap */
-        for(i = 0; i < mtd->numeraseregions; i++) {
-                merip = &mtd->eraseregions[i];
-
-                eraseoffset = merip->offset;
-                erasesize = merip->erasesize;
-                eraseblocks = merip->numblocks;
-
-                if (ofs > eraseoffset + erasesize)
-                        continue;
-
-                while (eraseblocks > 0) {
-                        if (ofs < eraseoffset + erasesize && ofs + len > eraseoffset) {
-                                unlock_sector(map, eraseoffset, is_unlock);
-
-                                lock_status = is_sector_locked(map, eraseoffset);
-
-                                if (is_unlock && lock_status) {
-                                        printk("Cannot unlock sector at address %x length %xx\n",
-                                               eraseoffset, merip->erasesize);
-                                        retval = -1;
-                                } else if (!is_unlock && !lock_status) {
-                                        printk("Cannot lock sector at address %x length %x\n",
-                                               eraseoffset, merip->erasesize);
-                                        retval = -1;
-                                }
-                        }
-                        eraseoffset += erasesize;
-                        eraseblocks --;
-                }
-        }
-        return retval;
-}
-
-static int amd_flash_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
-{
-        return amd_flash_do_unlock(mtd, ofs, len, 1);
-}
-
-static int amd_flash_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
-{
-        return amd_flash_do_unlock(mtd, ofs, len, 0);
-}
-
-
-/*
- * Reads JEDEC manufacturer ID and device ID and returns the index of the first
- * matching table entry (-1 if not found or alias for already found chip).
- */
-static int probe_new_chip(struct mtd_info *mtd, __u32 base,
-                          struct flchip *chips,
-                          struct amd_flash_private *private,
-                          const struct amd_flash_info *table, int table_size)
-{
-        __u32 mfr_id;
-        __u32 dev_id;
-        struct map_info *map = mtd->priv;
-        struct amd_flash_private temp;
-        int i;
-
-        temp.device_type = DEVICE_TYPE_X16;     // Assume X16 (FIXME)
-        temp.interleave = 2;
-        map->fldrv_priv = &temp;
-
-        /* Enter autoselect mode. */
-        send_cmd(map, base, CMD_RESET_DATA);
-        send_cmd(map, base, CMD_MANUFACTURER_UNLOCK_DATA);
-
-        mfr_id = wide_read(map, base + (map->buswidth * ADDR_MANUFACTURER));
-        dev_id = wide_read(map, base + (map->buswidth * ADDR_DEVICE_ID));
-
-        if ((map->buswidth == 4) && ((mfr_id >> 16) == (mfr_id & 0xffff)) &&
-            ((dev_id >> 16) == (dev_id & 0xffff))) {
-                mfr_id &= 0xffff;
-                dev_id &= 0xffff;
-        } else {
-                temp.interleave = 1;
-        }
-
-        for (i = 0; i < table_size; i++) {
-                if ((mfr_id == table[i].mfr_id) &&
-                    (dev_id == table[i].dev_id)) {
-                        if (chips) {
-                                int j;
-
-                                /* Is this an alias for an already found chip?
-                                 * In that case that chip should be in
-                                 * autoselect mode now.
-                                 */
-                                for (j = 0; j < private->numchips; j++) {
-                                        __u32 mfr_id_other;
-                                        __u32 dev_id_other;
-
-                                        mfr_id_other =
-                                                wide_read(map, chips[j].start +
-                                                               (map->buswidth *
-                                                                ADDR_MANUFACTURER
-                                                               ));
-                                        dev_id_other =
-                                                wide_read(map, chips[j].start +
-                                                               (map->buswidth *
-                                                                ADDR_DEVICE_ID));
-                                        if (temp.interleave == 2) {
-                                                mfr_id_other &= 0xffff;
-                                                dev_id_other &= 0xffff;
-                                        }
-                                        if ((mfr_id_other == mfr_id) &&
-                                            (dev_id_other == dev_id)) {
-
-                                                /* Exit autoselect mode. */
-                                                send_cmd(map, base,
-                                                         CMD_RESET_DATA);
-
-                                                return -1;
-                                        }
-                                }
-
-                                if (private->numchips == MAX_AMD_CHIPS) {
-                                        printk(KERN_WARNING
-                                               "%s: Too many flash chips "
-                                               "detected. Increase "
-                                               "MAX_AMD_CHIPS from %d.\n",
-                                               map->name, MAX_AMD_CHIPS);
-
-                                        return -1;
-                                }
-
-                                chips[private->numchips].start = base;
-                                chips[private->numchips].state = FL_READY;
-                                chips[private->numchips].mutex =
-                                        &chips[private->numchips]._spinlock;
-                                private->numchips++;
-                        }
-
-                        printk("%s: Found %d x %ldMiB %s at 0x%x\n", map->name,
-                               temp.interleave, (table[i].size)/(1024*1024),
-                               table[i].name, base);
-
-                        mtd->size += table[i].size * temp.interleave;
-                        mtd->numeraseregions += table[i].numeraseregions;
-
-                        break;
-                }
-        }
-
-        /* Exit autoselect mode. */
-        send_cmd(map, base, CMD_RESET_DATA);
-
-        if (i == table_size) {
-                printk(KERN_DEBUG "%s: unknown flash device at 0x%x, "
-                       "mfr id 0x%x, dev id 0x%x\n", map->name,
-                       base, mfr_id, dev_id);
-                map->fldrv_priv = NULL;
-
-                return -1;
-        }
-
-        private->device_type = temp.device_type;
-        private->interleave = temp.interleave;
-
-        return i;
-}
-
-
-
-static struct mtd_info *amd_flash_probe(struct map_info *map)
-{
-        static const struct amd_flash_info table[] = {
-        {
-                .mfr_id = MANUFACTURER_AMD,
-                .dev_id = AM29LV160DT,
-                .name = "AMD AM29LV160DT",
-                .size = 0x00200000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
-                        { .offset = 0x1F0000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x1F8000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x1FC000, .erasesize = 0x04000, .numblocks =  1 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_AMD,
-                .dev_id = AM29LV160DB,
-                .name = "AMD AM29LV160DB",
-                .size = 0x00200000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x04000, .numblocks =  1 },
-                        { .offset = 0x004000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x008000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_TOSHIBA,
-                .dev_id = TC58FVT160,
-                .name = "Toshiba TC58FVT160",
-                .size = 0x00200000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
-                        { .offset = 0x1F0000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x1F8000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x1FC000, .erasesize = 0x04000, .numblocks =  1 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_FUJITSU,
-                .dev_id = MBM29LV160TE,
-                .name = "Fujitsu MBM29LV160TE",
-                .size = 0x00200000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
-                        { .offset = 0x1F0000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x1F8000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x1FC000, .erasesize = 0x04000, .numblocks =  1 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_TOSHIBA,
-                .dev_id = TC58FVB160,
-                .name = "Toshiba TC58FVB160",
-                .size = 0x00200000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x04000, .numblocks =  1 },
-                        { .offset = 0x004000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x008000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_FUJITSU,
-                .dev_id = MBM29LV160BE,
-                .name = "Fujitsu MBM29LV160BE",
-                .size = 0x00200000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x04000, .numblocks =  1 },
-                        { .offset = 0x004000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x008000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_AMD,
-                .dev_id = AM29LV800BB,
-                .name = "AMD AM29LV800BB",
-                .size = 0x00100000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x04000, .numblocks =  1 },
-                        { .offset = 0x004000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x008000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 15 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_AMD,
-                .dev_id = AM29F800BB,
-                .name = "AMD AM29F800BB",
-                .size = 0x00100000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x04000, .numblocks =  1 },
-                        { .offset = 0x004000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x008000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 15 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_AMD,
-                .dev_id = AM29LV800BT,
-                .name = "AMD AM29LV800BT",
-                .size = 0x00100000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 15 },
-                        { .offset = 0x0F0000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x0F8000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x0FC000, .erasesize = 0x04000, .numblocks =  1 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_AMD,
-                .dev_id = AM29F800BT,
-                .name = "AMD AM29F800BT",
-                .size = 0x00100000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 15 },
-                        { .offset = 0x0F0000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x0F8000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x0FC000, .erasesize = 0x04000, .numblocks =  1 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_AMD,
-                .dev_id = AM29LV800BB,
-                .name = "AMD AM29LV800BB",
-                .size = 0x00100000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 15 },
-                        { .offset = 0x0F0000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x0F8000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x0FC000, .erasesize = 0x04000, .numblocks =  1 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_FUJITSU,
-                .dev_id = MBM29LV800BB,
-                .name = "Fujitsu MBM29LV800BB",
-                .size = 0x00100000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x04000, .numblocks =  1 },
-                        { .offset = 0x004000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x008000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 15 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_ST,
-                .dev_id = M29W800T,
-                .name = "ST M29W800T",
-                .size = 0x00100000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 15 },
-                        { .offset = 0x0F0000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x0F8000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x0FC000, .erasesize = 0x04000, .numblocks =  1 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_ST,
-                .dev_id = M29W160DT,
-                .name = "ST M29W160DT",
-                .size = 0x00200000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
-                        { .offset = 0x1F0000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x1F8000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x1FC000, .erasesize = 0x04000, .numblocks =  1 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_ST,
-                .dev_id = M29W160DB,
-                .name = "ST M29W160DB",
-                .size = 0x00200000,
-                .numeraseregions = 4,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x04000, .numblocks =  1 },
-                        { .offset = 0x004000, .erasesize = 0x02000, .numblocks =  2 },
-                        { .offset = 0x008000, .erasesize = 0x08000, .numblocks =  1 },
-                        { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_AMD,
-                .dev_id = AM29BDS323D,
-                .name = "AMD AM29BDS323D",
-                .size = 0x00400000,
-                .numeraseregions = 3,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 48 },
-                        { .offset = 0x300000, .erasesize = 0x10000, .numblocks = 15 },
-                        { .offset = 0x3f0000, .erasesize = 0x02000, .numblocks =  8 },
-                }
-        }, {
-                .mfr_id = MANUFACTURER_ATMEL,
-                .dev_id = AT49xV16x,
-                .name = "Atmel AT49xV16x",
-                .size = 0x00200000,
-                .numeraseregions = 2,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x02000, .numblocks =  8 },
-                        { .offset = 0x010000, .erasesize = 0x10000, .numblocks = 31 }
-                }
-        }, {
-                .mfr_id = MANUFACTURER_ATMEL,
-                .dev_id = AT49xV16xT,
-                .name = "Atmel AT49xV16xT",
-                .size = 0x00200000,
-                .numeraseregions = 2,
-                .regions = {
-                        { .offset = 0x000000, .erasesize = 0x10000, .numblocks = 31 },
-                        { .offset = 0x1F0000, .erasesize = 0x02000, .numblocks =  8 }
-                }
-        }
-        };
-
-        struct mtd_info *mtd;
-        struct flchip chips[MAX_AMD_CHIPS];
-        int table_pos[MAX_AMD_CHIPS];
-        struct amd_flash_private temp;
-        struct amd_flash_private *private;
-        u_long size;
-        unsigned long base;
-        int i;
-        int reg_idx;
-        int offset;
-
-        mtd = kzalloc(sizeof(*mtd), GFP_KERNEL);
-        if (!mtd) {
-                printk(KERN_WARNING
-                       "%s: kmalloc failed for info structure\n", map->name);
-                return NULL;
-        }
-        mtd->priv = map;
-
-        memset(&temp, 0, sizeof(temp));
-
-        printk("%s: Probing for AMD compatible flash...\n", map->name);
-
-        if ((table_pos[0] = probe_new_chip(mtd, 0, NULL, &temp, table,
-                                           ARRAY_SIZE(table)))
-            == -1) {
-                printk(KERN_WARNING
-                       "%s: Found no AMD compatible device at location zero\n",
-                       map->name);
-                kfree(mtd);
-
-                return NULL;
-        }
-
-        chips[0].start = 0;
-        chips[0].state = FL_READY;
-        chips[0].mutex = &chips[0]._spinlock;
-        temp.numchips = 1;
-        for (size = mtd->size; size > 1; size >>= 1) {
-                temp.chipshift++;
-        }
-        switch (temp.interleave) {
-                case 2:
-                        temp.chipshift += 1;
-                        break;
-                case 4:
-                        temp.chipshift += 2;
-                        break;
-        }
-
-        /* Find out if there are any more chips in the map. */
-        for (base = (1 << temp.chipshift);
-             base < map->size;
-             base += (1 << temp.chipshift)) {
-                int numchips = temp.numchips;
-                table_pos[numchips] = probe_new_chip(mtd, base, chips,
-                        &temp, table, ARRAY_SIZE(table));
-        }
-
-        mtd->eraseregions = kmalloc(sizeof(struct mtd_erase_region_info) *
-                                    mtd->numeraseregions, GFP_KERNEL);
-        if (!mtd->eraseregions) {
-                printk(KERN_WARNING "%s: Failed to allocate "
-                       "memory for MTD erase region info\n", map->name);
-                kfree(mtd);
-                map->fldrv_priv = NULL;
-                return NULL;
-        }
-
-        reg_idx = 0;
-        offset = 0;
-        for (i = 0; i < temp.numchips; i++) {
-                int dev_size;
-                int j;
-
-                dev_size = 0;
-                for (j = 0; j < table[table_pos[i]].numeraseregions; j++) {
-                        mtd->eraseregions[reg_idx].offset = offset +
-                                (table[table_pos[i]].regions[j].offset *
-                                 temp.interleave);
-                        mtd->eraseregions[reg_idx].erasesize =
-                                table[table_pos[i]].regions[j].erasesize *
-                                temp.interleave;
-                        mtd->eraseregions[reg_idx].numblocks =
-                                table[table_pos[i]].regions[j].numblocks;
-                        if (mtd->erasesize <
-                            mtd->eraseregions[reg_idx].erasesize) {
-                                mtd->erasesize =
-                                        mtd->eraseregions[reg_idx].erasesize;
-                        }
-                        dev_size += mtd->eraseregions[reg_idx].erasesize *
-                                    mtd->eraseregions[reg_idx].numblocks;
-                        reg_idx++;
-                }
-                offset += dev_size;
-        }
-        mtd->type = MTD_NORFLASH;
-        mtd->writesize = 1;
-        mtd->flags = MTD_CAP_NORFLASH;
-        mtd->name = map->name;
-        mtd->erase = amd_flash_erase;
-        mtd->read = amd_flash_read;
-        mtd->write = amd_flash_write;
-        mtd->sync = amd_flash_sync;
-        mtd->suspend = amd_flash_suspend;
-        mtd->resume = amd_flash_resume;
-        mtd->lock = amd_flash_lock;
-        mtd->unlock = amd_flash_unlock;
-
-        private = kmalloc(sizeof(*private) + (sizeof(struct flchip) *
-                                              temp.numchips), GFP_KERNEL);
-        if (!private) {
-                printk(KERN_WARNING
-                       "%s: kmalloc failed for private structure\n", map->name);
-                kfree(mtd);
-                map->fldrv_priv = NULL;
-                return NULL;
-        }
-        memcpy(private, &temp, sizeof(temp));
-        memcpy(private->chips, chips,
-               sizeof(struct flchip) * private->numchips);
-        for (i = 0; i < private->numchips; i++) {
-                init_waitqueue_head(&private->chips[i].wq);
-                spin_lock_init(&private->chips[i]._spinlock);
-        }
-
-        map->fldrv_priv = private;
-
-        map->fldrv = &amd_flash_chipdrv;
-
-        __module_get(THIS_MODULE);
-        return mtd;
-}
-
-
-
-static inline int read_one_chip(struct map_info *map, struct flchip *chip,
-                               loff_t adr, size_t len, u_char *buf)
-{
-        DECLARE_WAITQUEUE(wait, current);
-        unsigned long timeo = jiffies + HZ;
-
-retry:
-        spin_lock_bh(chip->mutex);
-
-        if (chip->state != FL_READY){
-                printk(KERN_INFO "%s: waiting for chip to read, state = %d\n",
-                       map->name, chip->state);
-                set_current_state(TASK_UNINTERRUPTIBLE);
-                add_wait_queue(&chip->wq, &wait);
-
-                spin_unlock_bh(chip->mutex);
-
-                schedule();
-                remove_wait_queue(&chip->wq, &wait);
-
-                if(signal_pending(current)) {
-                        return -EINTR;
-                }
-
-                timeo = jiffies + HZ;
-
-                goto retry;
-        }
-
-        adr += chip->start;
-
-        chip->state = FL_READY;
-
-        map_copy_from(map, buf, adr, len);
-
-        wake_up(&chip->wq);
-        spin_unlock_bh(chip->mutex);
-
-        return 0;
-}
-
-
-
-static int amd_flash_read(struct mtd_info *mtd, loff_t from, size_t len,
-                          size_t *retlen, u_char *buf)
-{
-        struct map_info *map = mtd->priv;
-        struct amd_flash_private *private = map->fldrv_priv;
-        unsigned long ofs;
-        int chipnum;
-        int ret = 0;
-
-        if ((from + len) > mtd->size) {
-                printk(KERN_WARNING "%s: read request past end of device "
-                       "(0x%lx)\n", map->name, (unsigned long)from + len);
-
-                return -EINVAL;
-        }
-
-        /* Offset within the first chip that the first read should start. */
-        chipnum = (from >> private->chipshift);
-        ofs = from - (chipnum <<  private->chipshift);
-
-        *retlen = 0;
-
-        while (len) {
-                unsigned long this_len;
-
-                if (chipnum >= private->numchips) {
-                        break;
-                }
-
-                if ((len + ofs - 1) >> private->chipshift) {
-                        this_len = (1 << private->chipshift) - ofs;
-                } else {
-                        this_len = len;
-                }
-
-                ret = read_one_chip(map, &private->chips[chipnum], ofs,
-                                    this_len, buf);
-                if (ret) {
-                        break;
-                }
-
-                *retlen += this_len;
-                len -= this_len;
-                buf += this_len;
-
-                ofs = 0;
-                chipnum++;
-        }
-
-        return ret;
-}
-
-
-
-static int write_one_word(struct map_info *map, struct flchip *chip,
-                          unsigned long adr, __u32 datum)
-{
-        unsigned long timeo = jiffies + HZ;
-        struct amd_flash_private *private = map->fldrv_priv;
-        DECLARE_WAITQUEUE(wait, current);
-        int ret = 0;
-        int times_left;
-
-retry:
-        spin_lock_bh(chip->mutex);
-
-        if (chip->state != FL_READY){
-                printk("%s: waiting for chip to write, state = %d\n",
-                       map->name, chip->state);
-                set_current_state(TASK_UNINTERRUPTIBLE);
-                add_wait_queue(&chip->wq, &wait);
-
-                spin_unlock_bh(chip->mutex);
-
-                schedule();
-                remove_wait_queue(&chip->wq, &wait);
-                printk(KERN_INFO "%s: woke up to write\n", map->name);
-                if(signal_pending(current))
-                        return -EINTR;
-
-                timeo = jiffies + HZ;
-
-                goto retry;
-        }
-
-        chip->state = FL_WRITING;
-
-        adr += chip->start;
-        ENABLE_VPP(map);
-        send_cmd(map, chip->start, CMD_PROGRAM_UNLOCK_DATA);
-        wide_write(map, datum, adr);
-
-        times_left = 500000;
-        while (times_left-- && flash_is_busy(map, adr, private->interleave)) {
-                if (need_resched()) {
-                        spin_unlock_bh(chip->mutex);
-                        schedule();
-                        spin_lock_bh(chip->mutex);
-                }
-        }
-
-        if (!times_left) {
-                printk(KERN_WARNING "%s: write to 0x%lx timed out!\n",
-                       map->name, adr);
-                ret = -EIO;
-        } else {
-                __u32 verify;
-                if ((verify = wide_read(map, adr)) != datum) {
-                        printk(KERN_WARNING "%s: write to 0x%lx failed. "
-                               "datum = %x, verify = %x\n",
-                               map->name, adr, datum, verify);
-                        ret = -EIO;
-                }
-        }
-
-        DISABLE_VPP(map);
-        chip->state = FL_READY;
-        wake_up(&chip->wq);
-        spin_unlock_bh(chip->mutex);
-
-        return ret;
-}
-
-
-
-static int amd_flash_write(struct mtd_info *mtd, loff_t to , size_t len,
-                           size_t *retlen, const u_char *buf)
-{
-        struct map_info *map = mtd->priv;
-        struct amd_flash_private *private = map->fldrv_priv;
-        int ret = 0;
-        int chipnum;
-        unsigned long ofs;
-        unsigned long chipstart;
-
-        *retlen = 0;
-        if (!len) {
-                return 0;
-        }
-
-        chipnum = to >> private->chipshift;
-        ofs = to  - (chipnum << private->chipshift);
-        chipstart = private->chips[chipnum].start;
-
-        /* If it's not bus-aligned, do the first byte write. */
-        if (ofs & (map->buswidth - 1)) {
-                unsigned long bus_ofs = ofs & ~(map->buswidth - 1);
-                int i = ofs - bus_ofs;
-                int n = 0;
-                u_char tmp_buf[4];
-                __u32 datum;
-
-                map_copy_from(map, tmp_buf,
-                               bus_ofs + private->chips[chipnum].start,
-                               map->buswidth);
-                while (len && i < map->buswidth)
-                        tmp_buf[i++] = buf[n++], len--;
-
-                if (map->buswidth == 2) {
-                        datum = *(__u16*)tmp_buf;
-                } else if (map->buswidth == 4) {
-                        datum = *(__u32*)tmp_buf;
-                } else {
-                        return -EINVAL;  /* should never happen, but be safe */
-                }
-
-                ret = write_one_word(map, &private->chips[chipnum], bus_ofs,
-                                     datum);
-                if (ret) {
-                        return ret;
-                }
-
-                ofs += n;
-                buf += n;
-                (*retlen) += n;
-
-                if (ofs >> private->chipshift) {
-                        chipnum++;
-                        ofs = 0;
-                        if (chipnum == private->numchips) {
-                                return 0;
-                        }
-                }
-        }
-
-        /* We are now aligned, write as much as possible. */
-        while(len >= map->buswidth) {
-                __u32 datum;
-
-                if (map->buswidth == 1) {
-                        datum = *(__u8*)buf;
-                } else if (map->buswidth == 2) {
-                        datum = *(__u16*)buf;
-                } else if (map->buswidth == 4) {
-                        datum = *(__u32*)buf;
-                } else {
-                        return -EINVAL;
-                }
-
-                ret = write_one_word(map, &private->chips[chipnum], ofs, datum);
-
-                if (ret) {
-                        return ret;
-                }
-
-                ofs += map->buswidth;
-                buf += map->buswidth;
-                (*retlen) += map->buswidth;
-                len -= map->buswidth;
-
-                if (ofs >> private->chipshift) {
-                        chipnum++;
-                        ofs = 0;
-                        if (chipnum == private->numchips) {
-                                return 0;
-                        }
-                        chipstart = private->chips[chipnum].start;
-                }
-        }
-
-        if (len & (map->buswidth - 1)) {
-                int i = 0, n = 0;
-                u_char tmp_buf[2];
-                __u32 datum;
-
-                map_copy_from(map, tmp_buf,
-                               ofs + private->chips[chipnum].start,
-                               map->buswidth);
-                while (len--) {
-                        tmp_buf[i++] = buf[n++];
-                }
-
-                if (map->buswidth == 2) {
-                        datum = *(__u16*)tmp_buf;
-                } else if (map->buswidth == 4) {
-                        datum = *(__u32*)tmp_buf;
-                } else {
-                        return -EINVAL;  /* should never happen, but be safe */
-                }
-
-                ret = write_one_word(map, &private->chips[chipnum], ofs, datum);
-
-                if (ret) {
-                        return ret;
-                }
-
-                (*retlen) += n;
-        }
-
-        return 0;
-}
-
-
-
-static inline int erase_one_block(struct map_info *map, struct flchip *chip,
-                                  unsigned long adr, u_long size)
-{
-        unsigned long timeo = jiffies + HZ;
-        struct amd_flash_private *private = map->fldrv_priv;
-        DECLARE_WAITQUEUE(wait, current);
-
-retry:
-        spin_lock_bh(chip->mutex);
-
-        if (chip->state != FL_READY){
-                set_current_state(TASK_UNINTERRUPTIBLE);
-                add_wait_queue(&chip->wq, &wait);
-
-                spin_unlock_bh(chip->mutex);
-
-                schedule();
-                remove_wait_queue(&chip->wq, &wait);
-
-                if (signal_pending(current)) {
-                        return -EINTR;
-                }
-
-                timeo = jiffies + HZ;
-
-                goto retry;
-        }
-
-        chip->state = FL_ERASING;
-
-        adr += chip->start;
-        ENABLE_VPP(map);
-        send_cmd(map, chip->start, CMD_SECTOR_ERASE_UNLOCK_DATA);
-        send_cmd_to_addr(map, chip->start, CMD_SECTOR_ERASE_UNLOCK_DATA_2, adr);
-
-        timeo = jiffies + (HZ * 20);
-
-        spin_unlock_bh(chip->mutex);
-        msleep(1000);
-        spin_lock_bh(chip->mutex);
-
-        while (flash_is_busy(map, adr, private->interleave)) {
-
-                if (chip->state != FL_ERASING) {
-                        /* Someone's suspended the erase. Sleep */
-                        set_current_state(TASK_UNINTERRUPTIBLE);
-                        add_wait_queue(&chip->wq, &wait);
-
-                        spin_unlock_bh(chip->mutex);
-                        printk(KERN_INFO "%s: erase suspended. Sleeping\n",
-                               map->name);
-                        schedule();
-                        remove_wait_queue(&chip->wq, &wait);
-
-                        if (signal_pending(current)) {
-                                return -EINTR;
-                        }
-
-                        timeo = jiffies + (HZ*2); /* FIXME */
-                        spin_lock_bh(chip->mutex);
-                        continue;
-                }
-
-                /* OK Still waiting */
-                if (time_after(jiffies, timeo)) {
-                        chip->state = FL_READY;
-                        spin_unlock_bh(chip->mutex);
-                        printk(KERN_WARNING "%s: waiting for erase to complete "
-                               "timed out.\n", map->name);
-                        DISABLE_VPP(map);
-
-                        return -EIO;
-                }
-
-                /* Latency issues. Drop the lock, wait a while and retry */
-                spin_unlock_bh(chip->mutex);
-
-                if (need_resched())
-                        schedule();
-                else
-                        udelay(1);
-
-                spin_lock_bh(chip->mutex);
-        }
-
-        /* Verify every single word */
-        {
-                int address;
-                int error = 0;
-                __u8 verify;
-
-                for (address = adr; address < (adr + size); address++) {
-                        if ((verify = map_read8(map, address)) != 0xFF) {
-                                error = 1;
-                                break;
-                        }
-                }
-                if (error) {
-                        chip->state = FL_READY;
-                        spin_unlock_bh(chip->mutex);
-                        printk(KERN_WARNING
-                               "%s: verify error at 0x%x, size %ld.\n",
-                               map->name, address, size);
-                        DISABLE_VPP(map);
-
-                        return -EIO;
-                }
-        }
-
-        DISABLE_VPP(map);
-        chip->state = FL_READY;
-        wake_up(&chip->wq);
-        spin_unlock_bh(chip->mutex);
-
-        return 0;
-}
-
-
-
-static int amd_flash_erase(struct mtd_info *mtd, struct erase_info *instr)
-{
-        struct map_info *map = mtd->priv;
-        struct amd_flash_private *private = map->fldrv_priv;
-        unsigned long adr, len;
-        int chipnum;
-        int ret = 0;
-        int i;
-        int first;
-        struct mtd_erase_region_info *regions = mtd->eraseregions;
-
-        if (instr->addr > mtd->size) {
-                return -EINVAL;
-        }
-
-        if ((instr->len + instr->addr) > mtd->size) {
-                return -EINVAL;
-        }
-
-        /* Check that both start and end of the requested erase are
-         * aligned with the erasesize at the appropriate addresses.
-         */
-
-        i = 0;
-
-        /* Skip all erase regions which are ended before the start of
-           the requested erase. Actually, to save on the calculations,
-           we skip to the first erase region which starts after the
-           start of the requested erase, and then go back one.
-        */
-
-        while ((i < mtd->numeraseregions) &&
-               (instr->addr >= regions[i].offset)) {
-               i++;
-        }
-        i--;
-
-        /* OK, now i is pointing at the erase region in which this
-         * erase request starts. Check the start of the requested
-         * erase range is aligned with the erase size which is in
-         * effect here.
-         */
-
-        if (instr->addr & (regions[i].erasesize-1)) {
-                return -EINVAL;
-        }
-
-        /* Remember the erase region we start on. */
-
-        first = i;
-
-        /* Next, check that the end of the requested erase is aligned
-         * with the erase region at that address.
-         */
-
-        while ((i < mtd->numeraseregions) &&
-               ((instr->addr + instr->len) >= regions[i].offset)) {
-                i++;
-        }
-
-        /* As before, drop back one to point at the region in which
-         * the address actually falls.
-         */
-
-        i--;
-
-        if ((instr->addr + instr->len) & (regions[i].erasesize-1)) {
-                return -EINVAL;
-        }
-
-        chipnum = instr->addr >> private->chipshift;
-        adr = instr->addr - (chipnum << private->chipshift);
-        len = instr->len;
-
-        i = first;
-
-        while (len) {
-                ret = erase_one_block(map, &private->chips[chipnum], adr,
-                                      regions[i].erasesize);
-
-                if (ret) {
-                        return ret;
-                }
-
-                adr += regions[i].erasesize;
-                len -= regions[i].erasesize;
-
-                if ((adr % (1 << private->chipshift)) ==
-                    ((regions[i].offset + (regions[i].erasesize *
-                                           regions[i].numblocks))
-                     % (1 << private->chipshift))) {
-                        i++;
-                }
-
-                if (adr >> private->chipshift) {
-                        adr = 0;
-                        chipnum++;
-                        if (chipnum >= private->numchips) {
-                                break;
-                        }
-                }
-        }
-
-        instr->state = MTD_ERASE_DONE;
-        mtd_erase_callback(instr);
-
-        return 0;
-}
-
-
-
-static void amd_flash_sync(struct mtd_info *mtd)
-{
-        struct map_info *map = mtd->priv;
-        struct amd_flash_private *private = map->fldrv_priv;
-        int i;
-        struct flchip *chip;
-        int ret = 0;
-        DECLARE_WAITQUEUE(wait, current);
-
-        for (i = 0; !ret && (i < private->numchips); i++) {
-                chip = &private->chips[i];
-
-        retry:
-                spin_lock_bh(chip->mutex);
-
-                switch(chip->state) {
-                case FL_READY:
-                case FL_STATUS:
-                case FL_CFI_QUERY:
-                case FL_JEDEC_QUERY:
-                        chip->oldstate = chip->state;
-                        chip->state = FL_SYNCING;
-                        /* No need to wake_up() on this state change -
-                         * as the whole point is that nobody can do anything
-                         * with the chip now anyway.
-                         */
-                case FL_SYNCING:
-                        spin_unlock_bh(chip->mutex);
-                        break;
-
-                default:
-                        /* Not an idle state */
-                        add_wait_queue(&chip->wq, &wait);
-
-                        spin_unlock_bh(chip->mutex);
-
-                        schedule();
-
-                        remove_wait_queue(&chip->wq, &wait);
-
-                        goto retry;
-                }
-        }
-
-        /* Unlock the chips again */
-        for (i--; i >= 0; i--) {
-                chip = &private->chips[i];
-
-                spin_lock_bh(chip->mutex);
-
-                if (chip->state == FL_SYNCING) {
-                        chip->state = chip->oldstate;
-                        wake_up(&chip->wq);
-                }
-                spin_unlock_bh(chip->mutex);
-        }
-}
-
-
-
-static int amd_flash_suspend(struct mtd_info *mtd)
-{
-printk("amd_flash_suspend(): not implemented!\n");
-        return -EINVAL;
-}
-
-
-
-static void amd_flash_resume(struct mtd_info *mtd)
-{
-printk("amd_flash_resume(): not implemented!\n");
-}
-
-
-
-static void amd_flash_destroy(struct mtd_info *mtd)
-{
-        struct map_info *map = mtd->priv;
-        struct amd_flash_private *private = map->fldrv_priv;
-        kfree(private);
-}
-
-int __init amd_flash_init(void)
-{
-        register_mtd_chip_driver(&amd_flash_chipdrv);
-        return 0;
-}
-
-void __exit amd_flash_exit(void)
-{
-        unregister_mtd_chip_driver(&amd_flash_chipdrv);
-}
-
-module_init(amd_flash_init);
-module_exit(amd_flash_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jonas Holmberg <jonas.holmberg@axis.com>");
-MODULE_DESCRIPTION("Old MTD chip driver for AMD flash chips");
diff --git a/drivers/mtd/chips/jedec.c b/drivers/mtd/chips/jedec.c
deleted file mode 100644
index 14e57b2bf842..000000000000
--- a/drivers/mtd/chips/jedec.c
+++ /dev/null
@@ -1,935 +0,0 @@
-
-/* JEDEC Flash Interface.
- * This is an older type of interface for self programming flash. It is
- * commonly use in older AMD chips and is obsolete compared with CFI.
- * It is called JEDEC because the JEDEC association distributes the ID codes
- * for the chips.
- *
- * See the AMD flash databook for information on how to operate the interface.
- *
- * This code does not support anything wider than 8 bit flash chips, I am
- * not going to guess how to send commands to them, plus I expect they will
- * all speak CFI..
- *
- * $Id: jedec.c,v 1.22 2005/01/05 18:05:11 dwmw2 Exp $
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/mtd/jedec.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/compatmac.h>
-
-static struct mtd_info *jedec_probe(struct map_info *);
-static int jedec_probe8(struct map_info *map,unsigned long base,
-                  struct jedec_private *priv);
-static int jedec_probe16(struct map_info *map,unsigned long base,
-                  struct jedec_private *priv);
-static int jedec_probe32(struct map_info *map,unsigned long base,
-                  struct jedec_private *priv);
-static void jedec_flash_chip_scan(struct jedec_private *priv,unsigned long start,
-                            unsigned long len);
-static int flash_erase(struct mtd_info *mtd, struct erase_info *instr);
-static int flash_write(struct mtd_info *mtd, loff_t start, size_t len,
-                       size_t *retlen, const u_char *buf);
-
-static unsigned long my_bank_size;
-
-/* Listing of parts and sizes. We need this table to learn the sector
-   size of the chip and the total length */
-static const struct JEDECTable JEDEC_table[] = {
-        {
-                .jedec          = 0x013D,
-                .name           = "AMD Am29F017D",
-                .size           = 2*1024*1024,
-                .sectorsize     = 64*1024,
-                .capabilities   = MTD_CAP_NORFLASH
-        },
-        {
-                .jedec          = 0x01AD,
-                .name           = "AMD Am29F016",
-                .size           = 2*1024*1024,
-                .sectorsize     = 64*1024,
-                .capabilities   = MTD_CAP_NORFLASH
-        },
-        {
-                .jedec          = 0x01D5,
-                .name           = "AMD Am29F080",
-                .size           = 1*1024*1024,
-                .sectorsize     = 64*1024,
-                .capabilities   = MTD_CAP_NORFLASH
-        },
-        {
-                .jedec          = 0x01A4,
-                .name           = "AMD Am29F040",
-                .size           = 512*1024,
-                .sectorsize     = 64*1024,
-                .capabilities   = MTD_CAP_NORFLASH
-        },
-        {
-                .jedec          = 0x20E3,
-                .name           = "AMD Am29W040B",
-                .size           = 512*1024,
-                .sectorsize     = 64*1024,
-                .capabilities   = MTD_CAP_NORFLASH
-        },
-        {
-                .jedec          = 0xC2AD,
-                .name           = "Macronix MX29F016",
-                .size           = 2*1024*1024,
-                .sectorsize     = 64*1024,
-                .capabilities   = MTD_CAP_NORFLASH
-        },
-        { .jedec = 0x0 }
-};
-
-static const struct JEDECTable *jedec_idtoinf(__u8 mfr,__u8 id);
-static void jedec_sync(struct mtd_info *mtd) {};
-static int jedec_read(struct mtd_info *mtd, loff_t from, size_t len,
-                      size_t *retlen, u_char *buf);
-static int jedec_read_banked(struct mtd_info *mtd, loff_t from, size_t len,
-                             size_t *retlen, u_char *buf);
-
-static struct mtd_info *jedec_probe(struct map_info *map);
-
-
-
-static struct mtd_chip_driver jedec_chipdrv = {
-        .probe  = jedec_probe,
-        .name   = "jedec",
-        .module = THIS_MODULE
-};
-
-/* Probe entry point */
-
-static struct mtd_info *jedec_probe(struct map_info *map)
-{
-   struct mtd_info *MTD;
-   struct jedec_private *priv;
-   unsigned long Base;
-   unsigned long SectorSize;
-   unsigned count;
-   unsigned I,Uniq;
-   char Part[200];
-   memset(&priv,0,sizeof(priv));
-
-   MTD = kzalloc(sizeof(struct mtd_info) + sizeof(struct jedec_private), GFP_KERNEL);
-   if (!MTD)
-           return NULL;
-
-   priv = (struct jedec_private *)&MTD[1];
-
-   my_bank_size = map->size;
-
-   if (map->size/my_bank_size > MAX_JEDEC_CHIPS)
-   {
-      printk("mtd: Increase MAX_JEDEC_CHIPS, too many banks.\n");
-      kfree(MTD);
-      return NULL;
-   }
-
-   for (Base = 0; Base < map->size; Base += my_bank_size)
-   {
-      // Perhaps zero could designate all tests?
-      if (map->buswidth == 0)
-         map->buswidth = 1;
-
-      if (map->buswidth == 1){
-         if (jedec_probe8(map,Base,priv) == 0) {
-                 printk("did recognize jedec chip\n");
-                 kfree(MTD);
-                 return NULL;
-         }
-      }
-      if (map->buswidth == 2)
-         jedec_probe16(map,Base,priv);
-      if (map->buswidth == 4)
-         jedec_probe32(map,Base,priv);
-   }
-
-   // Get the biggest sector size
-   SectorSize = 0;
-   for (I = 0; priv->chips[I].jedec != 0 && I < MAX_JEDEC_CHIPS; I++)
-   {
-           //      printk("priv->chips[%d].jedec is %x\n",I,priv->chips[I].jedec);
-           //      printk("priv->chips[%d].sectorsize is %lx\n",I,priv->chips[I].sectorsize);
-      if (priv->chips[I].sectorsize > SectorSize)
-         SectorSize = priv->chips[I].sectorsize;
-   }
-
-   // Quickly ensure that the other sector sizes are factors of the largest
-   for (I = 0; priv->chips[I].jedec != 0 && I < MAX_JEDEC_CHIPS; I++)
-   {
-      if ((SectorSize/priv->chips[I].sectorsize)*priv->chips[I].sectorsize != SectorSize)
-      {
-         printk("mtd: Failed. Device has incompatible mixed sector sizes\n");
-         kfree(MTD);
-         return NULL;
-      }
-   }
-
-   /* Generate a part name that includes the number of different chips and
-      other configuration information */
-   count = 1;
-   strlcpy(Part,map->name,sizeof(Part)-10);
-   strcat(Part," ");
-   Uniq = 0;
-   for (I = 0; priv->chips[I].jedec != 0 && I < MAX_JEDEC_CHIPS; I++)
-   {
-      const struct JEDECTable *JEDEC;
-
-      if (priv->chips[I+1].jedec == priv->chips[I].jedec)
-      {
-         count++;
-         continue;
-      }
-
-      // Locate the chip in the jedec table
-      JEDEC = jedec_idtoinf(priv->chips[I].jedec >> 8,priv->chips[I].jedec);
-      if (JEDEC == 0)
-      {
-         printk("mtd: Internal Error, JEDEC not set\n");
-         kfree(MTD);
-         return NULL;
-      }
-
-      if (Uniq != 0)
-         strcat(Part,",");
-      Uniq++;
-
-      if (count != 1)
-         sprintf(Part+strlen(Part),"%x*[%s]",count,JEDEC->name);
-      else
-         sprintf(Part+strlen(Part),"%s",JEDEC->name);
-      if (strlen(Part) > sizeof(Part)*2/3)
-         break;
-      count = 1;
-   }
-
-   /* Determine if the chips are organized in a linear fashion, or if there
-      are empty banks. Note, the last bank does not count here, only the
-      first banks are important. Holes on non-bank boundaries can not exist
-      due to the way the detection algorithm works. */
-   if (priv->size < my_bank_size)
-      my_bank_size = priv->size;
-   priv->is_banked = 0;
-   //printk("priv->size is %x, my_bank_size is %x\n",priv->size,my_bank_size);
-   //printk("priv->bank_fill[0] is %x\n",priv->bank_fill[0]);
-   if (!priv->size) {
-           printk("priv->size is zero\n");
-           kfree(MTD);
-           return NULL;
-   }
-   if (priv->size/my_bank_size) {
-           if (priv->size/my_bank_size == 1) {
-                   priv->size = my_bank_size;
-           }
-           else {
-                   for (I = 0; I != priv->size/my_bank_size - 1; I++)
-                   {
-                      if (priv->bank_fill[I] != my_bank_size)
-                         priv->is_banked = 1;
-
-                      /* This even could be eliminated, but new de-optimized read/write
-                         functions have to be written */
-                      printk("priv->bank_fill[%d] is %lx, priv->bank_fill[0] is %lx\n",I,priv->bank_fill[I],priv->bank_fill[0]);
-                      if (priv->bank_fill[I] != priv->bank_fill[0])
-                      {
-                         printk("mtd: Failed. Cannot handle unsymmetric banking\n");
-                         kfree(MTD);
-                         return NULL;
-                      }
-                   }
-           }
-   }
-   if (priv->is_banked == 1)
-      strcat(Part,", banked");
-
-   //   printk("Part: '%s'\n",Part);
-
-   memset(MTD,0,sizeof(*MTD));
-  // strlcpy(MTD->name,Part,sizeof(MTD->name));
-   MTD->name = map->name;
-   MTD->type = MTD_NORFLASH;
-   MTD->flags = MTD_CAP_NORFLASH;
-   MTD->writesize = 1;
-   MTD->erasesize = SectorSize*(map->buswidth);
-   //   printk("MTD->erasesize is %x\n",(unsigned int)MTD->erasesize);
-   MTD->size = priv->size;
-   //   printk("MTD->size is %x\n",(unsigned int)MTD->size);
-   //MTD->module = THIS_MODULE; // ? Maybe this should be the low level module?
-   MTD->erase = flash_erase;
-   if (priv->is_banked == 1)
-      MTD->read = jedec_read_banked;
-   else
-      MTD->read = jedec_read;
-   MTD->write = flash_write;
-   MTD->sync = jedec_sync;
-   MTD->priv = map;
-   map->fldrv_priv = priv;
-   map->fldrv = &jedec_chipdrv;
-   __module_get(THIS_MODULE);
-   return MTD;
-}
-
-/* Helper for the JEDEC function, JEDEC numbers all have odd parity */
-static int checkparity(u_char C)
-{
-   u_char parity = 0;
-   while (C != 0)
-   {
-      parity ^= C & 1;
-      C >>= 1;
-   }
-
-   return parity == 1;
-}
-
-
-/* Take an array of JEDEC numbers that represent interleved flash chips
-   and process them. Check to make sure they are good JEDEC numbers, look
-   them up and then add them to the chip list */
-static int handle_jedecs(struct map_info *map,__u8 *Mfg,__u8 *Id,unsigned Count,
-                  unsigned long base,struct jedec_private *priv)
-{
-   unsigned I,J;
-   unsigned long Size;
-   unsigned long SectorSize;
-   const struct JEDECTable *JEDEC;
-
-   // Test #2 JEDEC numbers exhibit odd parity
-   for (I = 0; I != Count; I++)
-   {
-      if (checkparity(Mfg[I]) == 0 || checkparity(Id[I]) == 0)
-         return 0;
-   }
-
-   // Finally, just make sure all the chip sizes are the same
-   JEDEC = jedec_idtoinf(Mfg[0],Id[0]);
-
-   if (JEDEC == 0)
-   {
-      printk("mtd: Found JEDEC flash chip, but do not have a table entry for %x:%x\n",Mfg[0],Mfg[1]);
-      return 0;
-   }
-
-   Size = JEDEC->size;
-   SectorSize = JEDEC->sectorsize;
-   for (I = 0; I != Count; I++)
-   {
-      JEDEC = jedec_idtoinf(Mfg[0],Id[0]);
-      if (JEDEC == 0)
-      {
-         printk("mtd: Found JEDEC flash chip, but do not have a table entry for %x:%x\n",Mfg[0],Mfg[1]);
-         return 0;
-      }
-
-      if (Size != JEDEC->size || SectorSize != JEDEC->sectorsize)
-      {
-         printk("mtd: Failed. Interleved flash does not have matching characteristics\n");
-         return 0;
-      }
-   }
-
-   // Load the Chips
-   for (I = 0; I != MAX_JEDEC_CHIPS; I++)
-   {
-      if (priv->chips[I].jedec == 0)
-         break;
-   }
-
-   if (I + Count > MAX_JEDEC_CHIPS)
-   {
-      printk("mtd: Device has too many chips. Increase MAX_JEDEC_CHIPS\n");
-      return 0;
-   }
-
-   // Add them to the table
-   for (J = 0; J != Count; J++)
-   {
-      unsigned long Bank;
-
-      JEDEC = jedec_idtoinf(Mfg[J],Id[J]);
-      priv->chips[I].jedec = (Mfg[J] << 8) | Id[J];
-      priv->chips[I].size = JEDEC->size;
-      priv->chips[I].sectorsize = JEDEC->sectorsize;
-      priv->chips[I].base = base + J;
-      priv->chips[I].datashift = J*8;
-      priv->chips[I].capabilities = JEDEC->capabilities;
-      priv->chips[I].offset = priv->size + J;
-
-      // log2 n :|
-      priv->chips[I].addrshift = 0;
-      for (Bank = Count; Bank != 1; Bank >>= 1, priv->chips[I].addrshift++);
-
-      // Determine how filled this bank is.
-      Bank = base & (~(my_bank_size-1));
-      if (priv->bank_fill[Bank/my_bank_size] < base +
-          (JEDEC->size << priv->chips[I].addrshift) - Bank)
-         priv->bank_fill[Bank/my_bank_size] =  base + (JEDEC->size << priv->chips[I].addrshift) - Bank;
-      I++;
-   }
-
-   priv->size += priv->chips[I-1].size*Count;
-
-   return priv->chips[I-1].size;
-}
-
-/* Lookup the chip information from the JEDEC ID table. */
-static const struct JEDECTable *jedec_idtoinf(__u8 mfr,__u8 id)
-{
-   __u16 Id = (mfr << 8) | id;
-   unsigned long I = 0;
-   for (I = 0; JEDEC_table[I].jedec != 0; I++)
-      if (JEDEC_table[I].jedec == Id)
-         return JEDEC_table + I;
-   return NULL;
-}
-
-// Look for flash using an 8 bit bus interface
-static int jedec_probe8(struct map_info *map,unsigned long base,
-                  struct jedec_private *priv)
-{
-   #define flread(x) map_read8(map,base+x)
-   #define flwrite(v,x) map_write8(map,v,base+x)
-
-   const unsigned long AutoSel1 = 0xAA;
-   const unsigned long AutoSel2 = 0x55;
-   const unsigned long AutoSel3 = 0x90;
-   const unsigned long Reset = 0xF0;
-   __u32 OldVal;
-   __u8 Mfg[1];
-   __u8 Id[1];
-   unsigned I;
-   unsigned long Size;
-
-   // Wait for any write/erase operation to settle
-   OldVal = flread(base);
-   for (I = 0; OldVal != flread(base) && I < 10000; I++)
-      OldVal = flread(base);
-
-   // Reset the chip
-   flwrite(Reset,0x555);
-
-   // Send the sequence
-   flwrite(AutoSel1,0x555);
-   flwrite(AutoSel2,0x2AA);
-   flwrite(AutoSel3,0x555);
-
-   //  Get the JEDEC numbers
-   Mfg[0] = flread(0);
-   Id[0] = flread(1);
-   //   printk("Mfg is %x, Id is %x\n",Mfg[0],Id[0]);
-
-   Size = handle_jedecs(map,Mfg,Id,1,base,priv);
-   //   printk("handle_jedecs Size is %x\n",(unsigned int)Size);
-   if (Size == 0)
-   {
-      flwrite(Reset,0x555);
-      return 0;
-   }
-
-
-   // Reset.
-   flwrite(Reset,0x555);
-
-   return 1;
-
-   #undef flread
-   #undef flwrite
-}
-
-// Look for flash using a 16 bit bus interface (ie 2 8-bit chips)
-static int jedec_probe16(struct map_info *map,unsigned long base,
-                  struct jedec_private *priv)
-{
-   return 0;
-}
-
-// Look for flash using a 32 bit bus interface (ie 4 8-bit chips)
-static int jedec_probe32(struct map_info *map,unsigned long base,
-                  struct jedec_private *priv)
-{
-   #define flread(x) map_read32(map,base+((x)<<2))
-   #define flwrite(v,x) map_write32(map,v,base+((x)<<2))
-
-   const unsigned long AutoSel1 = 0xAAAAAAAA;
-   const unsigned long AutoSel2 = 0x55555555;
-   const unsigned long AutoSel3 = 0x90909090;
-   const unsigned long Reset = 0xF0F0F0F0;
-   __u32 OldVal;
-   __u8 Mfg[4];
-   __u8 Id[4];
-   unsigned I;
-   unsigned long Size;
-
-   // Wait for any write/erase operation to settle
-   OldVal = flread(base);
-   for (I = 0; OldVal != flread(base) && I < 10000; I++)
-      OldVal = flread(base);
-
-   // Reset the chip
-   flwrite(Reset,0x555);
-
-   // Send the sequence
-   flwrite(AutoSel1,0x555);
-   flwrite(AutoSel2,0x2AA);
-   flwrite(AutoSel3,0x555);
-
-   // Test #1, JEDEC numbers are readable from 0x??00/0x??01
-   if (flread(0) != flread(0x100) ||
-       flread(1) != flread(0x101))
-   {
-      flwrite(Reset,0x555);
-      return 0;
-   }
-
-   // Split up the JEDEC numbers
-   OldVal = flread(0);
-   for (I = 0; I != 4; I++)
-      Mfg[I] = (OldVal >> (I*8));
-   OldVal = flread(1);
-   for (I = 0; I != 4; I++)
-      Id[I] = (OldVal >> (I*8));
-
-   Size = handle_jedecs(map,Mfg,Id,4,base,priv);
-   if (Size == 0)
-   {
-      flwrite(Reset,0x555);
-      return 0;
-   }
-
-   /* Check if there is address wrap around within a single bank, if this
-      returns JEDEC numbers then we assume that it is wrap around. Notice
-      we call this routine with the JEDEC return still enabled, if two or
-      more flashes have a truncated address space the probe test will still
-      work */
-   if (base + (Size<<2)+0x555 < map->size &&
-       base + (Size<<2)+0x555 < (base & (~(my_bank_size-1))) + my_bank_size)
-   {
-      if (flread(base+Size) != flread(base+Size + 0x100) ||
-          flread(base+Size + 1) != flread(base+Size + 0x101))
-      {
-         jedec_probe32(map,base+Size,priv);
-      }
-   }
-
-   // Reset.
-   flwrite(0xF0F0F0F0,0x555);
-
-   return 1;
-
-   #undef flread
-   #undef flwrite
-}
-
-/* Linear read. */
-static int jedec_read(struct mtd_info *mtd, loff_t from, size_t len,
-                      size_t *retlen, u_char *buf)
-{
-   struct map_info *map = mtd->priv;
-
-   map_copy_from(map, buf, from, len);
-   *retlen = len;
-   return 0;
-}
-
-/* Banked read. Take special care to jump past the holes in the bank
-   mapping. This version assumes symetry in the holes.. */
-static int jedec_read_banked(struct mtd_info *mtd, loff_t from, size_t len,
-                             size_t *retlen, u_char *buf)
-{
-   struct map_info *map = mtd->priv;
-   struct jedec_private *priv = map->fldrv_priv;
-
-   *retlen = 0;
-   while (len > 0)
-   {
-      // Determine what bank and offset into that bank the first byte is
-      unsigned long bank = from & (~(priv->bank_fill[0]-1));
-      unsigned long offset = from & (priv->bank_fill[0]-1);
-      unsigned long get = len;
-      if (priv->bank_fill[0] - offset < len)
-         get = priv->bank_fill[0] - offset;
-
-      bank /= priv->bank_fill[0];
-      map_copy_from(map,buf + *retlen,bank*my_bank_size + offset,get);
-
-      len -= get;
-      *retlen += get;
-      from += get;
-   }
-   return 0;
-}
-
-/* Pass the flags value that the flash return before it re-entered read
-   mode. */
-static void jedec_flash_failed(unsigned char code)
-{
-   /* Bit 5 being high indicates that there was an internal device
-      failure, erasure time limits exceeded or something */
-   if ((code & (1 << 5)) != 0)
-   {
-      printk("mtd: Internal Flash failure\n");
-      return;
-   }
-   printk("mtd: Programming didn't take\n");
-}
-
-/* This uses the erasure function described in the AMD Flash Handbook,
-   it will work for flashes with a fixed sector size only. Flashes with
-   a selection of sector sizes (ie the AMD Am29F800B) will need a different
-   routine. This routine tries to parallize erasing multiple chips/sectors
-   where possible */
-static int flash_erase(struct mtd_info *mtd, struct erase_info *instr)
-{
-   // Does IO to the currently selected chip
-   #define flread(x) map_read8(map,chip->base+((x)<<chip->addrshift))
-   #define flwrite(v,x) map_write8(map,v,chip->base+((x)<<chip->addrshift))
-
-   unsigned long Time = 0;
-   unsigned long NoTime = 0;
-   unsigned long start = instr->addr, len = instr->len;
-   unsigned int I;
-   struct map_info *map = mtd->priv;
-   struct jedec_private *priv = map->fldrv_priv;
-
-   // Verify the arguments..
-   if (start + len > mtd->size ||
-       (start % mtd->erasesize) != 0 ||
-       (len % mtd->erasesize) != 0 ||
-       (len/mtd->erasesize) == 0)
-      return -EINVAL;
-
-   jedec_flash_chip_scan(priv,start,len);
-
-   // Start the erase sequence on each chip
-   for (I = 0; priv->chips[I].jedec != 0 && I < MAX_JEDEC_CHIPS; I++)
-   {
-      unsigned long off;
-      struct jedec_flash_chip *chip = priv->chips + I;
-
-      if (chip->length == 0)
-         continue;
-
-      if (chip->start + chip->length > chip->size)
-      {
-         printk("DIE\n");
-         return -EIO;
-      }
-
-      flwrite(0xF0,chip->start + 0x555);
-      flwrite(0xAA,chip->start + 0x555);
-      flwrite(0x55,chip->start + 0x2AA);
-      flwrite(0x80,chip->start + 0x555);
-      flwrite(0xAA,chip->start + 0x555);
-      flwrite(0x55,chip->start + 0x2AA);
-
-      /* Once we start selecting the erase sectors the delay between each
-         command must not exceed 50us or it will immediately start erasing
-         and ignore the other sectors */
-      for (off = 0; off < len; off += chip->sectorsize)
-      {
-         // Check to make sure we didn't timeout
-         flwrite(0x30,chip->start + off);
-         if (off == 0)
-            continue;
-         if ((flread(chip->start + off) & (1 << 3)) != 0)
-         {
-            printk("mtd: Ack! We timed out the erase timer!\n");
-            return -EIO;
-         }
-      }
-   }
-
-   /* We could split this into a timer routine and return early, performing
-      background erasure.. Maybe later if the need warrents */
-
-   /* Poll the flash for erasure completion, specs say this can take as long
-      as 480 seconds to do all the sectors (for a 2 meg flash).
-      Erasure time is dependent on chip age, temp and wear.. */
-
-   /* This being a generic routine assumes a 32 bit bus. It does read32s
-      and bundles interleved chips into the same grouping. This will work
-      for all bus widths */
-   Time = 0;
-   NoTime = 0;
-   for (I = 0; priv->chips[I].jedec != 0 && I < MAX_JEDEC_CHIPS; I++)
-   {
-      struct jedec_flash_chip *chip = priv->chips + I;
-      unsigned long off = 0;
-      unsigned todo[4] = {0,0,0,0};
-      unsigned todo_left = 0;
-      unsigned J;
-
-      if (chip->length == 0)
-         continue;
-
-      /* Find all chips in this data line, realistically this is all
-         or nothing up to the interleve count */
-      for (J = 0; priv->chips[J].jedec != 0 && J < MAX_JEDEC_CHIPS; J++)
-      {
-         if ((priv->chips[J].base & (~((1<<chip->addrshift)-1))) ==
-             (chip->base & (~((1<<chip->addrshift)-1))))
-         {
-            todo_left++;
-            todo[priv->chips[J].base & ((1<<chip->addrshift)-1)] = 1;
-         }
-      }
-
-      /*      printk("todo: %x %x %x %x\n",(short)todo[0],(short)todo[1],
-              (short)todo[2],(short)todo[3]);
-      */
-      while (1)
-      {
-         __u32 Last[4];
-         unsigned long Count = 0;
-
-         /* During erase bit 7 is held low and bit 6 toggles, we watch this,
-            should it stop toggling or go high then the erase is completed,
-            or this is not really flash ;> */
-         switch (map->buswidth) {
-         case 1:
-            Last[0] = map_read8(map,(chip->base >> chip->addrshift) + chip->start + off);
-            Last[1] = map_read8(map,(chip->base >> chip->addrshift) + chip->start + off);
-            Last[2] = map_read8(map,(chip->base >> chip->addrshift) + chip->start + off);
-            break;
-         case 2:
-            Last[0] = map_read16(map,(chip->base >> chip->addrshift) + chip->start + off);
-            Last[1] = map_read16(map,(chip->base >> chip->addrshift) + chip->start + off);
-            Last[2] = map_read16(map,(chip->base >> chip->addrshift) + chip->start + off);
-            break;
-         case 3:
-            Last[0] = map_read32(map,(chip->base >> chip->addrshift) + chip->start + off);
-            Last[1] = map_read32(map,(chip->base >> chip->addrshift) + chip->start + off);
-            Last[2] = map_read32(map,(chip->base >> chip->addrshift) + chip->start + off);
-            break;
-         }
-         Count = 3;
-         while (todo_left != 0)
-         {
-            for (J = 0; J != 4; J++)
-            {
-               __u8 Byte1 = (Last[(Count-1)%4] >> (J*8)) & 0xFF;
-               __u8 Byte2 = (Last[(Count-2)%4] >> (J*8)) & 0xFF;
-               __u8 Byte3 = (Last[(Count-3)%4] >> (J*8)) & 0xFF;
-               if (todo[J] == 0)
-                  continue;
-
-               if ((Byte1 & (1 << 7)) == 0 && Byte1 != Byte2)
-               {
-//                printk("Check %x %x %x\n",(short)J,(short)Byte1,(short)Byte2);
-                  continue;
-               }
-
-               if (Byte1 == Byte2)
-               {
-                  jedec_flash_failed(Byte3);
-                  return -EIO;
-               }
-
-               todo[J] = 0;
-               todo_left--;
-            }
-
-/*          if (NoTime == 0)
-               Time += HZ/10 - schedule_timeout(HZ/10);*/
-            NoTime = 0;
-
-            switch (map->buswidth) {
-            case 1:
-               Last[Count % 4] = map_read8(map,(chip->base >> chip->addrshift) + chip->start + off);
-              break;
-            case 2:
-               Last[Count % 4] = map_read16(map,(chip->base >> chip->addrshift) + chip->start + off);
-              break;
-            case 4:
-               Last[Count % 4] = map_read32(map,(chip->base >> chip->addrshift) + chip->start + off);
-              break;
-            }
-            Count++;
-
-/*          // Count time, max of 15s per sector (according to AMD)
-            if (Time > 15*len/mtd->erasesize*HZ)
-            {
-               printk("mtd: Flash Erase Timed out\n");
-               return -EIO;
-            }       */
-         }
-
-         // Skip to the next chip if we used chip erase
-         if (chip->length == chip->size)
-            off = chip->size;
-         else
-            off += chip->sectorsize;
-
-         if (off >= chip->length)
-            break;
-         NoTime = 1;
-      }
-
-      for (J = 0; priv->chips[J].jedec != 0 && J < MAX_JEDEC_CHIPS; J++)
-      {
-         if ((priv->chips[J].base & (~((1<<chip->addrshift)-1))) ==
-             (chip->base & (~((1<<chip->addrshift)-1))))
-            priv->chips[J].length = 0;
-      }
-   }
-
-   //printk("done\n");
-   instr->state = MTD_ERASE_DONE;
-   mtd_erase_callback(instr);
-   return 0;
-
-   #undef flread
-   #undef flwrite
-}
-
-/* This is the simple flash writing function. It writes to every byte, in
-   sequence. It takes care of how to properly address the flash if
-   the flash is interleved. It can only be used if all the chips in the
-   array are identical!*/
-static int flash_write(struct mtd_info *mtd, loff_t start, size_t len,
-                       size_t *retlen, const u_char *buf)
-{
-   /* Does IO to the currently selected chip. It takes the bank addressing
-      base (which is divisible by the chip size) adds the necessary lower bits
-      of addrshift (interleave index) and then adds the control register index. */
-   #define flread(x) map_read8(map,base+(off&((1<<chip->addrshift)-1))+((x)<<chip->addrshift))
-   #define flwrite(v,x) map_write8(map,v,base+(off&((1<<chip->addrshift)-1))+((x)<<chip->addrshift))
-
-   struct map_info *map = mtd->priv;
-   struct jedec_private *priv = map->fldrv_priv;
-   unsigned long base;
-   unsigned long off;
-   size_t save_len = len;
-
-   if (start + len > mtd->size)
-      return -EIO;
-
-   //printk("Here");
-
-   //printk("flash_write: start is %x, len is %x\n",start,(unsigned long)len);
-   while (len != 0)
-   {
-      struct jedec_flash_chip *chip = priv->chips;
-      unsigned long bank;
-      unsigned long boffset;
-
-      // Compute the base of the flash.
-      off = ((unsigned long)start) % (chip->size << chip->addrshift);
-      base = start - off;
-
-      // Perform banked addressing translation.
-      bank = base & (~(priv->bank_fill[0]-1));
-      boffset = base & (priv->bank_fill[0]-1);
-      bank = (bank/priv->bank_fill[0])*my_bank_size;
-      base = bank + boffset;
-
-    //  printk("Flasing %X %X %X\n",base,chip->size,len);
-     // printk("off is %x, compare with %x\n",off,chip->size << chip->addrshift);
-
-      // Loop over this page
-      for (; off != (chip->size << chip->addrshift) && len != 0; start++, len--, off++,buf++)
-      {
-         unsigned char oldbyte = map_read8(map,base+off);
-         unsigned char Last[4];
-         unsigned long Count = 0;
-
-         if (oldbyte == *buf) {
-        //       printk("oldbyte and *buf is %x,len is %x\n",oldbyte,len);
-            continue;
-         }
-         if (((~oldbyte) & *buf) != 0)
-            printk("mtd: warn: Trying to set a 0 to a 1\n");
-
-         // Write
-         flwrite(0xAA,0x555);
-         flwrite(0x55,0x2AA);
-         flwrite(0xA0,0x555);
-         map_write8(map,*buf,base + off);
-         Last[0] = map_read8(map,base + off);
-         Last[1] = map_read8(map,base + off);
-         Last[2] = map_read8(map,base + off);
-
-         /* Wait for the flash to finish the operation. We store the last 4
-            status bytes that have been retrieved so we can determine why
-            it failed. The toggle bits keep toggling when there is a
-            failure */
-         for (Count = 3; Last[(Count - 1) % 4] != Last[(Count - 2) % 4] &&
-              Count < 10000; Count++)
-            Last[Count % 4] = map_read8(map,base + off);
-         if (Last[(Count - 1) % 4] != *buf)
-         {
-            jedec_flash_failed(Last[(Count - 3) % 4]);
-            return -EIO;
-         }
-      }
-   }
-   *retlen = save_len;
-   return 0;
-}
-
-/* This is used to enhance the speed of the erase routine,
-   when things are being done to multiple chips it is possible to
-   parallize the operations, particularly full memory erases of multi
-   chip memories benifit */
-static void jedec_flash_chip_scan(struct jedec_private *priv,unsigned long start,
-                     unsigned long len)
-{
-   unsigned int I;
-
-   // Zero the records
-   for (I = 0; priv->chips[I].jedec != 0 && I < MAX_JEDEC_CHIPS; I++)
-      priv->chips[I].start = priv->chips[I].length = 0;
-
-   // Intersect the region with each chip
-   for (I = 0; priv->chips[I].jedec != 0 && I < MAX_JEDEC_CHIPS; I++)
-   {
-      struct jedec_flash_chip *chip = priv->chips + I;
-      unsigned long ByteStart;
-      unsigned long ChipEndByte = chip->offset + (chip->size << chip->addrshift);
-
-      // End is before this chip or the start is after it
-      if (start+len < chip->offset ||
-          ChipEndByte - (1 << chip->addrshift) < start)
-         continue;
-
-      if (start < chip->offset)
-      {
-         ByteStart = chip->offset;
-         chip->start = 0;
-      }
-      else
-      {
-         chip->start = (start - chip->offset + (1 << chip->addrshift)-1) >> chip->addrshift;
-         ByteStart = start;
-      }
-
-      if (start + len >= ChipEndByte)
-         chip->length = (ChipEndByte - ByteStart) >> chip->addrshift;
-      else
-         chip->length = (start + len - ByteStart + (1 << chip->addrshift)-1) >> chip->addrshift;
-   }
-}
-
-int __init jedec_init(void)
-{
-        register_mtd_chip_driver(&jedec_chipdrv);
-        return 0;
-}
-
-static void __exit jedec_exit(void)
-{
-        unregister_mtd_chip_driver(&jedec_chipdrv);
-}
-
-module_init(jedec_init);
-module_exit(jedec_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Jason Gunthorpe <jgg@deltatee.com> et al.");
-MODULE_DESCRIPTION("Old MTD chip driver for JEDEC-compliant flash chips");
diff --git a/drivers/mtd/chips/sharp.c b/drivers/mtd/chips/sharp.c
deleted file mode 100644
index c9cd3d21ccfa..000000000000
--- a/drivers/mtd/chips/sharp.c
+++ /dev/null
@@ -1,601 +0,0 @@
-/*
- * MTD chip driver for pre-CFI Sharp flash chips
- *
- * Copyright 2000,2001 David A. Schleef <ds@schleef.org>
- *           2000,2001 Lineo, Inc.
- *
- * $Id: sharp.c,v 1.17 2005/11/29 14:28:28 gleixner Exp $
- *
- * Devices supported:
- *   LH28F016SCT Symmetrical block flash memory, 2Mx8
- *   LH28F008SCT Symmetrical block flash memory, 1Mx8
- *
- * Documentation:
- *   http://www.sharpmeg.com/datasheets/memic/flashcmp/
- *   http://www.sharpmeg.com/datasheets/memic/flashcmp/01symf/16m/016sctl9.pdf
- *   016sctl9.pdf
- *
- * Limitations:
- *   This driver only supports 4x1 arrangement of chips.
- *   Not tested on anything but PowerPC.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/cfi.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-
-#define CMD_RESET               0xffffffff
-#define CMD_READ_ID             0x90909090
-#define CMD_READ_STATUS         0x70707070
-#define CMD_CLEAR_STATUS        0x50505050
-#define CMD_BLOCK_ERASE_1       0x20202020
-#define CMD_BLOCK_ERASE_2       0xd0d0d0d0
-#define CMD_BYTE_WRITE          0x40404040
-#define CMD_SUSPEND             0xb0b0b0b0
-#define CMD_RESUME              0xd0d0d0d0
-#define CMD_SET_BLOCK_LOCK_1    0x60606060
-#define CMD_SET_BLOCK_LOCK_2    0x01010101
-#define CMD_SET_MASTER_LOCK_1   0x60606060
-#define CMD_SET_MASTER_LOCK_2   0xf1f1f1f1
-#define CMD_CLEAR_BLOCK_LOCKS_1 0x60606060
-#define CMD_CLEAR_BLOCK_LOCKS_2 0xd0d0d0d0
-
-#define SR_READY                0x80808080 // 1 = ready
-#define SR_ERASE_SUSPEND        0x40404040 // 1 = block erase suspended
-#define SR_ERROR_ERASE          0x20202020 // 1 = error in block erase or clear lock bits
-#define SR_ERROR_WRITE          0x10101010 // 1 = error in byte write or set lock bit
-#define SR_VPP                  0x08080808 // 1 = Vpp is low
-#define SR_WRITE_SUSPEND        0x04040404 // 1 = byte write suspended
-#define SR_PROTECT              0x02020202 // 1 = lock bit set
-#define SR_RESERVED             0x01010101
-
-#define SR_ERRORS (SR_ERROR_ERASE|SR_ERROR_WRITE|SR_VPP|SR_PROTECT)
-
-/* Configuration options */
-
-#undef AUTOUNLOCK  /* automatically unlocks blocks before erasing */
-
-static struct mtd_info *sharp_probe(struct map_info *);
-
-static int sharp_probe_map(struct map_info *map,struct mtd_info *mtd);
-
-static int sharp_read(struct mtd_info *mtd, loff_t from, size_t len,
-        size_t *retlen, u_char *buf);
-static int sharp_write(struct mtd_info *mtd, loff_t from, size_t len,
-        size_t *retlen, const u_char *buf);
-static int sharp_erase(struct mtd_info *mtd, struct erase_info *instr);
-static void sharp_sync(struct mtd_info *mtd);
-static int sharp_suspend(struct mtd_info *mtd);
-static void sharp_resume(struct mtd_info *mtd);
-static void sharp_destroy(struct mtd_info *mtd);
-
-static int sharp_write_oneword(struct map_info *map, struct flchip *chip,
-        unsigned long adr, __u32 datum);
-static int sharp_erase_oneblock(struct map_info *map, struct flchip *chip,
-        unsigned long adr);
-#ifdef AUTOUNLOCK
-static void sharp_unlock_oneblock(struct map_info *map, struct flchip *chip,
-        unsigned long adr);
-#endif
-
-
-struct sharp_info{
-        struct flchip *chip;
-        int bogus;
-        int chipshift;
-        int numchips;
-        struct flchip chips[1];
-};
-
-static void sharp_destroy(struct mtd_info *mtd);
-
-static struct mtd_chip_driver sharp_chipdrv = {
-        .probe          = sharp_probe,
-        .destroy        = sharp_destroy,
-        .name           = "sharp",
-        .module         = THIS_MODULE
-};
-
-
-static struct mtd_info *sharp_probe(struct map_info *map)
-{
-        struct mtd_info *mtd = NULL;
-        struct sharp_info *sharp = NULL;
-        int width;
-
-        mtd = kzalloc(sizeof(*mtd), GFP_KERNEL);
-        if(!mtd)
-                return NULL;
-
-        sharp = kzalloc(sizeof(*sharp), GFP_KERNEL);
-        if(!sharp) {
-                kfree(mtd);
-                return NULL;
-        }
-
-        width = sharp_probe_map(map,mtd);
-        if(!width){
-                kfree(mtd);
-                kfree(sharp);
-                return NULL;
-        }
-
-        mtd->priv = map;
-        mtd->type = MTD_NORFLASH;
-        mtd->erase = sharp_erase;
-        mtd->read = sharp_read;
-        mtd->write = sharp_write;
-        mtd->sync = sharp_sync;
-        mtd->suspend = sharp_suspend;
-        mtd->resume = sharp_resume;
-        mtd->flags = MTD_CAP_NORFLASH;
-        mtd->writesize = 1;
-        mtd->name = map->name;
-
-        sharp->chipshift = 23;
-        sharp->numchips = 1;
-        sharp->chips[0].start = 0;
-        sharp->chips[0].state = FL_READY;
-        sharp->chips[0].mutex = &sharp->chips[0]._spinlock;
-        sharp->chips[0].word_write_time = 0;
-        init_waitqueue_head(&sharp->chips[0].wq);
-        spin_lock_init(&sharp->chips[0]._spinlock);
-
-        map->fldrv = &sharp_chipdrv;
-        map->fldrv_priv = sharp;
-
-        __module_get(THIS_MODULE);
-        return mtd;
-}
-
-static inline void sharp_send_cmd(struct map_info *map, unsigned long cmd, unsigned long adr)
-{
-        map_word map_cmd;
-        map_cmd.x[0] = cmd;
-        map_write(map, map_cmd, adr);
-}
-
-static int sharp_probe_map(struct map_info *map,struct mtd_info *mtd)
-{
-        map_word tmp, read0, read4;
-        unsigned long base = 0;
-        int width = 4;
-
-        tmp = map_read(map, base+0);
-
-        sharp_send_cmd(map, CMD_READ_ID, base+0);
-
-        read0 = map_read(map, base+0);
-        read4 = map_read(map, base+4);
-        if(read0.x[0] == 0x89898989){
-                printk("Looks like sharp flash\n");
-                switch(read4.x[0]){
-                case 0xaaaaaaaa:
-                case 0xa0a0a0a0:
-                        /* aa - LH28F016SCT-L95 2Mx8, 32 64k blocks*/
-                        /* a0 - LH28F016SCT-Z4  2Mx8, 32 64k blocks*/
-                        mtd->erasesize = 0x10000 * width;
-                        mtd->size = 0x200000 * width;
-                        return width;
-                case 0xa6a6a6a6:
-                        /* a6 - LH28F008SCT-L12 1Mx8, 16 64k blocks*/
-                        /* a6 - LH28F008SCR-L85 1Mx8, 16 64k blocks*/
-                        mtd->erasesize = 0x10000 * width;
-                        mtd->size = 0x100000 * width;
-                        return width;
-#if 0
-                case 0x00000000: /* unknown */
-                        /* XX - LH28F004SCT 512kx8, 8 64k blocks*/
-                        mtd->erasesize = 0x10000 * width;
-                        mtd->size = 0x80000 * width;
-                        return width;
-#endif
-                default:
-                        printk("Sort-of looks like sharp flash, 0x%08lx 0x%08lx\n",
-                                read0.x[0], read4.x[0]);
-                }
-        }else if((map_read(map, base+0).x[0] == CMD_READ_ID)){
-                /* RAM, probably */
-                printk("Looks like RAM\n");
-                map_write(map, tmp, base+0);
-        }else{
-                printk("Doesn't look like sharp flash, 0x%08lx 0x%08lx\n",
-                        read0.x[0], read4.x[0]);
-        }
-
-        return 0;
-}
-
-/* This function returns with the chip->mutex lock held. */
-static int sharp_wait(struct map_info *map, struct flchip *chip)
-{
-        int i;
-        map_word status;
-        unsigned long timeo = jiffies + HZ;
-        DECLARE_WAITQUEUE(wait, current);
-        int adr = 0;
-
-retry:
-        spin_lock_bh(chip->mutex);
-
-        switch(chip->state){
-        case FL_READY:
-                sharp_send_cmd(map, CMD_READ_STATUS, adr);
-                chip->state = FL_STATUS;
-        case FL_STATUS:
-                for(i=0;i<100;i++){
-                        status = map_read(map, adr);
-                        if((status.x[0] & SR_READY)==SR_READY)
-                                break;
-                        udelay(1);
-                }
-                break;
-        default:
-                printk("Waiting for chip\n");
-
-                set_current_state(TASK_INTERRUPTIBLE);
-                add_wait_queue(&chip->wq, &wait);
-
-                spin_unlock_bh(chip->mutex);
-
-                schedule();
-                remove_wait_queue(&chip->wq, &wait);
-
-                if(signal_pending(current))
-                        return -EINTR;
-
-                timeo = jiffies + HZ;
-
-                goto retry;
-        }
-
-        sharp_send_cmd(map, CMD_RESET, adr);
-
-        chip->state = FL_READY;
-
-        return 0;
-}
-
-static void sharp_release(struct flchip *chip)
-{
-        wake_up(&chip->wq);
-        spin_unlock_bh(chip->mutex);
-}
-
-static int sharp_read(struct mtd_info *mtd, loff_t from, size_t len,
-        size_t *retlen, u_char *buf)
-{
-        struct map_info *map = mtd->priv;
-        struct sharp_info *sharp = map->fldrv_priv;
-        int chipnum;
-        int ret = 0;
-        int ofs = 0;
-
-        chipnum = (from >> sharp->chipshift);
-        ofs = from & ((1 << sharp->chipshift)-1);
-
-        *retlen = 0;
-
-        while(len){
-                unsigned long thislen;
-
-                if(chipnum>=sharp->numchips)
-                        break;
-
-                thislen = len;
-                if(ofs+thislen >= (1<<sharp->chipshift))
-                        thislen = (1<<sharp->chipshift) - ofs;
-
-                ret = sharp_wait(map,&sharp->chips[chipnum]);
-                if(ret<0)
-                        break;
-
-                map_copy_from(map,buf,ofs,thislen);
-
-                sharp_release(&sharp->chips[chipnum]);
-
-                *retlen += thislen;
-                len -= thislen;
-                buf += thislen;
-
-                ofs = 0;
-                chipnum++;
-        }
-        return ret;
-}
-
-static int sharp_write(struct mtd_info *mtd, loff_t to, size_t len,
-        size_t *retlen, const u_char *buf)
-{
-        struct map_info *map = mtd->priv;
-        struct sharp_info *sharp = map->fldrv_priv;
-        int ret = 0;
-        int i,j;
-        int chipnum;
-        unsigned long ofs;
-        union { u32 l; unsigned char uc[4]; } tbuf;
-
-        *retlen = 0;
-
-        while(len){
-                tbuf.l = 0xffffffff;
-                chipnum = to >> sharp->chipshift;
-                ofs = to & ((1<<sharp->chipshift)-1);
-
-                j=0;
-                for(i=ofs&3;i<4 && len;i++){
-                        tbuf.uc[i] = *buf;
-                        buf++;
-                        to++;
-                        len--;
-                        j++;
-                }
-                sharp_write_oneword(map, &sharp->chips[chipnum], ofs&~3, tbuf.l);
-                if(ret<0)
-                        return ret;
-                (*retlen)+=j;
-        }
-
-        return 0;
-}
-
-static int sharp_write_oneword(struct map_info *map, struct flchip *chip,
-        unsigned long adr, __u32 datum)
-{
-        int ret;
-        int timeo;
-        int try;
-        int i;
-        map_word data, status;
-
-        status.x[0] = 0;
-        ret = sharp_wait(map,chip);
-
-        for(try=0;try<10;try++){
-                sharp_send_cmd(map, CMD_BYTE_WRITE, adr);
-                /* cpu_to_le32 -> hack to fix the writel be->le conversion */
-                data.x[0] = cpu_to_le32(datum);
-                map_write(map, data, adr);
-
-                chip->state = FL_WRITING;
-
-                timeo = jiffies + (HZ/2);
-
-                sharp_send_cmd(map, CMD_READ_STATUS, adr);
-                for(i=0;i<100;i++){
-                        status = map_read(map, adr);
-                        if((status.x[0] & SR_READY) == SR_READY)
-                                break;
-                }
-                if(i==100){
-                        printk("sharp: timed out writing\n");
-                }
-
-                if(!(status.x[0] & SR_ERRORS))
-                        break;
-
-                printk("sharp: error writing byte at addr=%08lx status=%08lx\n", adr, status.x[0]);
-
-                sharp_send_cmd(map, CMD_CLEAR_STATUS, adr);
-        }
-        sharp_send_cmd(map, CMD_RESET, adr);
-        chip->state = FL_READY;
-
-        wake_up(&chip->wq);
-        spin_unlock_bh(chip->mutex);
-
-        return 0;
-}
-
-static int sharp_erase(struct mtd_info *mtd, struct erase_info *instr)
-{
-        struct map_info *map = mtd->priv;
-        struct sharp_info *sharp = map->fldrv_priv;
-        unsigned long adr,len;
-        int chipnum, ret=0;
-
-//printk("sharp_erase()\n");
-        if(instr->addr & (mtd->erasesize - 1))
-                return -EINVAL;
-        if(instr->len & (mtd->erasesize - 1))
-                return -EINVAL;
-        if(instr->len + instr->addr > mtd->size)
-                return -EINVAL;
-
-        chipnum = instr->addr >> sharp->chipshift;
-        adr = instr->addr & ((1<<sharp->chipshift)-1);
-        len = instr->len;
-
-        while(len){
-                ret = sharp_erase_oneblock(map, &sharp->chips[chipnum], adr);
-                if(ret)return ret;
-
-                adr += mtd->erasesize;
-                len -= mtd->erasesize;
-                if(adr >> sharp->chipshift){
-                        adr = 0;
-                        chipnum++;
-                        if(chipnum>=sharp->numchips)
-                                break;
-                }
-        }
-
-        instr->state = MTD_ERASE_DONE;
-        mtd_erase_callback(instr);
-
-        return 0;
-}
-
-static int sharp_do_wait_for_ready(struct map_info *map, struct flchip *chip,
-        unsigned long adr)
-{
-        int ret;
-        unsigned long timeo;
-        map_word status;
-        DECLARE_WAITQUEUE(wait, current);
-
-        sharp_send_cmd(map, CMD_READ_STATUS, adr);
-        status = map_read(map, adr);
-
-        timeo = jiffies + HZ;
-
-        while(time_before(jiffies, timeo)){
-                sharp_send_cmd(map, CMD_READ_STATUS, adr);
-                status = map_read(map, adr);
-                if((status.x[0] & SR_READY)==SR_READY){
-                        ret = 0;
-                        goto out;
-                }
-                set_current_state(TASK_INTERRUPTIBLE);
-                add_wait_queue(&chip->wq, &wait);
-
-                //spin_unlock_bh(chip->mutex);
-
-                schedule_timeout(1);
-                schedule();
-                remove_wait_queue(&chip->wq, &wait);
-
-                //spin_lock_bh(chip->mutex);
-
-                if (signal_pending(current)){
-                        ret = -EINTR;
-                        goto out;
-                }
-
-        }
-        ret = -ETIME;
-out:
-        return ret;
-}
-
-static int sharp_erase_oneblock(struct map_info *map, struct flchip *chip,
-        unsigned long adr)
-{
-        int ret;
-        //int timeo;
-        map_word status;
-        //int i;
-
-//printk("sharp_erase_oneblock()\n");
-
-#ifdef AUTOUNLOCK
-        /* This seems like a good place to do an unlock */
-        sharp_unlock_oneblock(map,chip,adr);
-#endif
-
-        sharp_send_cmd(map, CMD_BLOCK_ERASE_1, adr);
-        sharp_send_cmd(map, CMD_BLOCK_ERASE_2, adr);
-
-        chip->state = FL_ERASING;
-
-        ret = sharp_do_wait_for_ready(map,chip,adr);
-        if(ret<0)return ret;
-
-        sharp_send_cmd(map, CMD_READ_STATUS, adr);
-        status = map_read(map, adr);
-
-        if(!(status.x[0] & SR_ERRORS)){
-                sharp_send_cmd(map, CMD_RESET, adr);
-                chip->state = FL_READY;
-                //spin_unlock_bh(chip->mutex);
-                return 0;
-        }
-
-        printk("sharp: error erasing block at addr=%08lx status=%08lx\n", adr, status.x[0]);
-        sharp_send_cmd(map, CMD_CLEAR_STATUS, adr);
-
-        //spin_unlock_bh(chip->mutex);
-
-        return -EIO;
-}
-
-#ifdef AUTOUNLOCK
-static void sharp_unlock_oneblock(struct map_info *map, struct flchip *chip,
-        unsigned long adr)
-{
-        int i;
-        map_word status;
-
-        sharp_send_cmd(map, CMD_CLEAR_BLOCK_LOCKS_1, adr);
-        sharp_send_cmd(map, CMD_CLEAR_BLOCK_LOCKS_2, adr);
-
-        udelay(100);
-
-        status = map_read(map, adr);
-        printk("status=%08lx\n", status.x[0]);
-
-        for(i=0;i<1000;i++){
-                //sharp_send_cmd(map, CMD_READ_STATUS, adr);
-                status = map_read(map, adr);
-                if((status.x[0] & SR_READY) == SR_READY)
-                        break;
-                udelay(100);
-        }
-        if(i==1000){
-                printk("sharp: timed out unlocking block\n");
-        }
-
-        if(!(status.x[0] & SR_ERRORS)){
-                sharp_send_cmd(map, CMD_RESET, adr);
-                chip->state = FL_READY;
-                return;
-        }
-
-        printk("sharp: error unlocking block at addr=%08lx status=%08lx\n", adr, status.x[0]);
-        sharp_send_cmd(map, CMD_CLEAR_STATUS, adr);
-}
-#endif
-
-static void sharp_sync(struct mtd_info *mtd)
-{
-        //printk("sharp_sync()\n");
-}
-
-static int sharp_suspend(struct mtd_info *mtd)
-{
-        printk("sharp_suspend()\n");
-        return -EINVAL;
-}
-
-static void sharp_resume(struct mtd_info *mtd)
-{
-        printk("sharp_resume()\n");
-
-}
-
-static void sharp_destroy(struct mtd_info *mtd)
-{
-        printk("sharp_destroy()\n");
-
-}
-
-static int __init sharp_probe_init(void)
-{
-        printk("MTD Sharp chip driver <ds@lineo.com>\n");
-
-        register_mtd_chip_driver(&sharp_chipdrv);
-
-        return 0;
-}
-
-static void __exit sharp_probe_exit(void)
-{
-        unregister_mtd_chip_driver(&sharp_chipdrv);
-}
-
-module_init(sharp_probe_init);
-module_exit(sharp_probe_exit);
-
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("David Schleef <ds@schleef.org>");
-MODULE_DESCRIPTION("Old MTD chip driver for pre-CFI Sharp flash chips");
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index fc4cc8ba9e29..be4b9948c762 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -373,7 +373,7 @@ static inline void kill_final_newline(char *str)
 
 #ifndef MODULE
 static int block2mtd_init_called = 0;
-static __initdata char block2mtd_paramline[80 + 12]; /* 80 for device, 12 for erase size */
+static char block2mtd_paramline[80 + 12]; /* 80 for device, 12 for erase size */
 #endif
 
 
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index d990d8141ef5..b665e4ac2208 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -60,7 +60,7 @@ config MTD_PHYSMAP_BANKWIDTH
           (i.e., run-time calling physmap_configure()).
 
 config MTD_PHYSMAP_OF
-        tristate "Flash device in physical memory map based on OF descirption"
+        tristate "Flash device in physical memory map based on OF description"
         depends on PPC_OF && (MTD_CFI || MTD_JEDECPROBE || MTD_ROM)
         help
           This provides a 'mapping' driver which allows the NOR Flash and
@@ -358,22 +358,6 @@ config MTD_CFI_FLAGADM
           Mapping for the Flaga digital module. If you don't have one, ignore
           this setting.
 
-config MTD_BEECH
-        tristate "CFI Flash device mapped on IBM 405LP Beech"
-        depends on MTD_CFI && BEECH
-        help
-          This enables access routines for the flash chips on the IBM
-          405LP Beech board. If you have one of these boards and would like
-          to use the flash chips on it, say 'Y'.
-
-config MTD_ARCTIC
-        tristate "CFI Flash device mapped on IBM 405LP Arctic"
-        depends on MTD_CFI && ARCTIC2
-        help
-          This enables access routines for the flash chips on the IBM 405LP
-          Arctic board. If you have one of these boards and would like to
-          use the flash chips on it, say 'Y'.
-
 config MTD_WALNUT
         tristate "Flash device mapped on IBM 405GP Walnut"
         depends on MTD_JEDECPROBE && WALNUT
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index de036c5e6139..3acbb5d01ca4 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -58,8 +58,6 @@ obj-$(CONFIG_MTD_NETtel)	+= nettel.o
 obj-$(CONFIG_MTD_SCB2_FLASH)    += scb2_flash.o
 obj-$(CONFIG_MTD_EBONY)         += ebony.o
 obj-$(CONFIG_MTD_OCOTEA)        += ocotea.o
-obj-$(CONFIG_MTD_BEECH)         += beech-mtd.o
-obj-$(CONFIG_MTD_ARCTIC)        += arctic-mtd.o
 obj-$(CONFIG_MTD_WALNUT)        += walnut.o
 obj-$(CONFIG_MTD_H720X)         += h720x-flash.o
 obj-$(CONFIG_MTD_SBC8240)       += sbc8240.o
diff --git a/drivers/mtd/maps/arctic-mtd.c b/drivers/mtd/maps/arctic-mtd.c
deleted file mode 100644
index 2cc902436275..000000000000
--- a/drivers/mtd/maps/arctic-mtd.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * $Id: arctic-mtd.c,v 1.14 2005/11/07 11:14:26 gleixner Exp $
- *
- * drivers/mtd/maps/arctic-mtd.c MTD mappings and partition tables for
- *                              IBM 405LP Arctic boards.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Copyright (C) 2002, International Business Machines Corporation
- * All Rights Reserved.
- *
- * Bishop Brock
- * IBM Research, Austin Center for Low-Power Computing
- * bcbrock@us.ibm.com
- * March 2002
- *
- * modified for Arctic by,
- * David Gibson
- * IBM OzLabs, Canberra, Australia
- * <arctic@gibson.dropbear.id.au>
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/init.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-#include <asm/ibm4xx.h>
-
-/*
- * 0 : 0xFE00 0000 - 0xFEFF FFFF : Filesystem 1 (16MiB)
- * 1 : 0xFF00 0000 - 0xFF4F FFFF : kernel (5.12MiB)
- * 2 : 0xFF50 0000 - 0xFFF5 FFFF : Filesystem 2 (10.624MiB) (if non-XIP)
- * 3 : 0xFFF6 0000 - 0xFFFF FFFF : PIBS Firmware (640KiB)
- */
-
-#define FFS1_SIZE       0x01000000 /* 16MiB */
-#define KERNEL_SIZE     0x00500000 /* 5.12MiB */
-#define FFS2_SIZE       0x00a60000 /* 10.624MiB */
-#define FIRMWARE_SIZE   0x000a0000 /* 640KiB */
-
-
-#define NAME            "Arctic Linux Flash"
-#define PADDR           SUBZERO_BOOTFLASH_PADDR
-#define BUSWIDTH        2
-#define SIZE            SUBZERO_BOOTFLASH_SIZE
-#define PARTITIONS      4
-
-/* Flash memories on these boards are memory resources, accessed big-endian. */
-
-{
-  /* do nothing for now */
-}
-
-static struct map_info arctic_mtd_map = {
-        .name           = NAME,
-        .size           = SIZE,
-        .bankwidth      = BUSWIDTH,
-        .phys           = PADDR,
-};
-
-static struct mtd_info *arctic_mtd;
-
-static struct mtd_partition arctic_partitions[PARTITIONS] = {
-        { .name         = "Filesystem",
-          .size         = FFS1_SIZE,
-          .offset       = 0,},
-        { .name         = "Kernel",
-          .size         = KERNEL_SIZE,
-          .offset       = FFS1_SIZE,},
-        { .name         = "Filesystem",
-          .size         = FFS2_SIZE,
-          .offset       = FFS1_SIZE + KERNEL_SIZE,},
-        { .name         = "Firmware",
-          .size         = FIRMWARE_SIZE,
-          .offset       = SUBZERO_BOOTFLASH_SIZE - FIRMWARE_SIZE,},
-};
-
-static int __init
-init_arctic_mtd(void)
-{
-        int err;
-
-        printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR);
-
-        arctic_mtd_map.virt = ioremap(PADDR, SIZE);
-
-        if (!arctic_mtd_map.virt) {
-                printk("%s: failed to ioremap 0x%x\n", NAME, PADDR);
-                return -EIO;
-        }
-        simple_map_init(&arctic_mtd_map);
-
-        printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8);
-        arctic_mtd = do_map_probe("cfi_probe", &arctic_mtd_map);
-
-        if (!arctic_mtd) {
-                iounmap(arctic_mtd_map.virt);
-                return -ENXIO;
-        }
-
-        arctic_mtd->owner = THIS_MODULE;
-
-        err = add_mtd_partitions(arctic_mtd, arctic_partitions, PARTITIONS);
-        if (err) {
-                printk("%s: add_mtd_partitions failed\n", NAME);
-                iounmap(arctic_mtd_map.virt);
-        }
-
-        return err;
-}
-
-static void __exit
-cleanup_arctic_mtd(void)
-{
-        if (arctic_mtd) {
-                del_mtd_partitions(arctic_mtd);
-                map_destroy(arctic_mtd);
-                iounmap((void *) arctic_mtd_map.virt);
-        }
-}
-
-module_init(init_arctic_mtd);
-module_exit(cleanup_arctic_mtd);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("David Gibson <arctic@gibson.dropbear.id.au>");
-MODULE_DESCRIPTION("MTD map and partitions for IBM 405LP Arctic boards");
diff --git a/drivers/mtd/maps/beech-mtd.c b/drivers/mtd/maps/beech-mtd.c
deleted file mode 100644
index d76d5981b863..000000000000
--- a/drivers/mtd/maps/beech-mtd.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * $Id: beech-mtd.c,v 1.11 2005/11/07 11:14:26 gleixner Exp $
- *
- * drivers/mtd/maps/beech-mtd.c MTD mappings and partition tables for
- *                              IBM 405LP Beech boards.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Copyright (C) 2002, International Business Machines Corporation
- * All Rights Reserved.
- *
- * Bishop Brock
- * IBM Research, Austin Center for Low-Power Computing
- * bcbrock@us.ibm.com
- * March 2002
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/init.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-#include <asm/ibm4xx.h>
-
-#define NAME     "Beech Linux Flash"
-#define PADDR    BEECH_BIGFLASH_PADDR
-#define SIZE     BEECH_BIGFLASH_SIZE
-#define BUSWIDTH 1
-
-/* Flash memories on these boards are memory resources, accessed big-endian. */
-
-
-static struct map_info beech_mtd_map = {
-        .name =         NAME,
-        .size =         SIZE,
-        .bankwidth =    BUSWIDTH,
-        .phys =         PADDR
-};
-
-static struct mtd_info *beech_mtd;
-
-static struct mtd_partition beech_partitions[2] = {
-        {
-              .name = "Linux Kernel",
-              .size = BEECH_KERNEL_SIZE,
-              .offset = BEECH_KERNEL_OFFSET
-        }, {
-              .name = "Free Area",
-              .size = BEECH_FREE_AREA_SIZE,
-              .offset = BEECH_FREE_AREA_OFFSET
-        }
-};
-
-static int __init
-init_beech_mtd(void)
-{
-        int err;
-
-        printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR);
-
-        beech_mtd_map.virt = ioremap(PADDR, SIZE);
-
-        if (!beech_mtd_map.virt) {
-                printk("%s: failed to ioremap 0x%x\n", NAME, PADDR);
-                return -EIO;
-        }
-
-        simple_map_init(&beech_mtd_map);
-
-        printk("%s: probing %d-bit flash bus\n", NAME, BUSWIDTH * 8);
-        beech_mtd = do_map_probe("cfi_probe", &beech_mtd_map);
-
-        if (!beech_mtd) {
-                iounmap(beech_mtd_map.virt);
-                return -ENXIO;
-        }
-
-        beech_mtd->owner = THIS_MODULE;
-
-        err = add_mtd_partitions(beech_mtd, beech_partitions, 2);
-        if (err) {
-                printk("%s: add_mtd_partitions failed\n", NAME);
-                iounmap(beech_mtd_map.virt);
-        }
-
-        return err;
-}
-
-static void __exit
-cleanup_beech_mtd(void)
-{
-        if (beech_mtd) {
-                del_mtd_partitions(beech_mtd);
-                map_destroy(beech_mtd);
-                iounmap((void *) beech_mtd_map.virt);
-        }
-}
-
-module_init(init_beech_mtd);
-module_exit(cleanup_beech_mtd);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Bishop Brock <bcbrock@us.ibm.com>");
-MODULE_DESCRIPTION("MTD map and partitions for IBM 405LP Beech boards");
diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c
index 9f53c655af3a..7b96cd02f82b 100644
--- a/drivers/mtd/maps/nettel.c
+++ b/drivers/mtd/maps/nettel.c
@@ -358,7 +358,7 @@ int __init nettel_init(void)
         /* Turn other PAR off so the first probe doesn't find it */
         *intel1par = 0;
 
-        /* Probe for the the size of the first Intel flash */
+        /* Probe for the size of the first Intel flash */
         nettel_intel_map.size = maxsize;
         nettel_intel_map.phys = intel0addr;
         nettel_intel_map.virt = ioremap_nocache(intel0addr, maxsize);
diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index 72107dc06d67..bbb42c35b69b 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -186,7 +186,7 @@ static int __devinit of_physmap_probe(struct of_device *dev, const struct of_dev
         else {
                 if (strcmp(of_probe, "ROM"))
                         dev_dbg(&dev->dev, "map_probe: don't know probe type "
-                        "'%s', mapping as rom\n");
+                        "'%s', mapping as rom\n", of_probe);
                 info->mtd = do_map_probe("mtd_rom", &info->map);
         }
         if (info->mtd == NULL) {
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 1af989023c66..9c6236852942 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -347,7 +347,6 @@ int add_mtd_partitions(struct mtd_info *master,
                 slave->mtd.subpage_sft = master->subpage_sft;
 
                 slave->mtd.name = parts[i].name;
-                slave->mtd.bank_size = master->bank_size;
                 slave->mtd.owner = master->owner;
 
                 slave->mtd.read = part_read;
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index d05873b8c155..f1d60b6f048e 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -232,11 +232,13 @@ config MTD_NAND_BASLER_EXCITE
           will be named "excite_nandflash.ko".
 
 config MTD_NAND_CAFE
-       tristate "NAND support for OLPC CAFÉ chip"
-       depends on PCI
-       help
-         Use NAND flash attached to the CAFÉ chip designed for the $100
-         laptop.
+        tristate "NAND support for OLPC CAFÉ chip"
+        depends on PCI
+        select REED_SOLOMON
+        select REED_SOLOMON_DEC16
+        help
+          Use NAND flash attached to the CAFÉ chip designed for the $100
+          laptop.
 
 config MTD_NAND_CS553X
         tristate "NAND support for CS5535/CS5536 (AMD Geode companion chip)"
@@ -270,4 +272,13 @@ config MTD_NAND_NANDSIM
           The simulator may simulate various NAND flash chips for the
           MTD nand layer.
 
+config MTD_NAND_PLATFORM
+        tristate "Support for generic platform NAND driver"
+        depends on MTD_NAND
+        help
+          This implements a generic NAND driver for on-SOC platform
+          devices. You will need to provide platform-specific functions
+          via platform_data.
+
+
 endif # MTD_NAND
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 6872031a3fb2..edba1db14bfa 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -26,6 +26,6 @@ obj-$(CONFIG_MTD_NAND_NDFC)		+= ndfc.o
 obj-$(CONFIG_MTD_NAND_AT91)             += at91_nand.o
 obj-$(CONFIG_MTD_NAND_CM_X270)          += cmx270_nand.o
 obj-$(CONFIG_MTD_NAND_BASLER_EXCITE)    += excite_nandflash.o
+obj-$(CONFIG_MTD_NAND_PLATFORM)         += plat_nand.o
 
 nand-objs := nand_base.o nand_bbt.o
-cafe_nand-objs := cafe.o cafe_ecc.o
diff --git a/drivers/mtd/nand/at91_nand.c b/drivers/mtd/nand/at91_nand.c
index 14b80cc90a7b..512e999177f7 100644
--- a/drivers/mtd/nand/at91_nand.c
+++ b/drivers/mtd/nand/at91_nand.c
@@ -82,6 +82,10 @@ static void at91_nand_disable(struct at91_nand_host *host)
                 at91_set_gpio_value(host->board->enable_pin, 1);
 }
 
+#ifdef CONFIG_MTD_PARTITIONS
+const char *part_probes[] = { "cmdlinepart", NULL };
+#endif
+
 /*
  * Probe for the NAND device.
  */
@@ -151,6 +155,12 @@ static int __init at91_nand_probe(struct platform_device *pdev)
 #ifdef CONFIG_MTD_PARTITIONS
         if (host->board->partition_info)
                 partitions = host->board->partition_info(mtd->size, &num_partitions);
+#ifdef CONFIG_MTD_CMDLINE_PARTS
+        else {
+                mtd->name = "at91_nand";
+                num_partitions = parse_mtd_partitions(mtd, part_probes, &partitions, 0);
+        }
+#endif
 
         if ((!partitions) || (num_partitions == 0)) {
                 printk(KERN_ERR "at91_nand: No parititions defined, or unsupported device.\n");
diff --git a/drivers/mtd/nand/cafe_ecc.c b/drivers/mtd/nand/cafe_ecc.c
deleted file mode 100644
index ea5c8491d2c5..000000000000
--- a/drivers/mtd/nand/cafe_ecc.c
+++ /dev/null
@@ -1,1381 +0,0 @@
-/* Error correction for CAFÉ NAND controller
- *
- * © 2006 Marvell, Inc.
- * Author: Tom Chiou
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-
-static unsigned short gf4096_mul(unsigned short, unsigned short);
-static unsigned short gf64_mul(unsigned short, unsigned short);
-static unsigned short gf4096_inv(unsigned short);
-static unsigned short err_pos(unsigned short);
-static void find_4bit_err_coefs(unsigned short, unsigned short, unsigned short,
-                                unsigned short, unsigned short, unsigned short,
-                                unsigned short, unsigned short, unsigned short *);
-static void zero_4x5_col3(unsigned short[4][5]);
-static void zero_4x5_col2(unsigned short[4][5]);
-static void zero_4x5_col1(unsigned short[4][5]);
-static void swap_4x5_rows(unsigned short[4][5], int, int, int);
-static void swap_2x3_rows(unsigned short m[2][3]);
-static void solve_4x5(unsigned short m[4][5], unsigned short *, int *);
-static void sort_coefs(int *, unsigned short *, int);
-static void find_4bit_err_pats(unsigned short, unsigned short, unsigned short,
-                               unsigned short, unsigned short, unsigned short,
-                               unsigned short, unsigned short, unsigned short *);
-static void find_3bit_err_coefs(unsigned short, unsigned short, unsigned short,
-                                unsigned short, unsigned short, unsigned short,
-                                unsigned short *);
-static void zero_3x4_col2(unsigned short[3][4]);
-static void zero_3x4_col1(unsigned short[3][4]);
-static void swap_3x4_rows(unsigned short[3][4], int, int, int);
-static void solve_3x4(unsigned short[3][4], unsigned short *, int *);
-static void find_3bit_err_pats(unsigned short, unsigned short, unsigned short,
-                               unsigned short, unsigned short, unsigned short,
-                               unsigned short *);
-
-static void find_2bit_err_pats(unsigned short, unsigned short, unsigned short,
-                               unsigned short, unsigned short *);
-static void find_2x2_soln(unsigned short, unsigned short, unsigned short,
-                          unsigned short, unsigned short, unsigned short,
-                          unsigned short *);
-static void solve_2x3(unsigned short[2][3], unsigned short *);
-static int chk_no_err_only(unsigned short *, unsigned short *);
-static int chk_1_err_only(unsigned short *, unsigned short *);
-static int chk_2_err_only(unsigned short *, unsigned short *);
-static int chk_3_err_only(unsigned short *, unsigned short *);
-static int chk_4_err_only(unsigned short *, unsigned short *);
-
-static unsigned short gf64_mul(unsigned short a, unsigned short b)
-{
-        unsigned short tmp1, tmp2, tmp3, tmp4, tmp5;
-        unsigned short c_bit0, c_bit1, c_bit2, c_bit3, c_bit4, c_bit5, c;
-
-        tmp1 = ((a) ^ (a >> 5));
-        tmp2 = ((a >> 4) ^ (a >> 5));
-        tmp3 = ((a >> 3) ^ (a >> 4));
-        tmp4 = ((a >> 2) ^ (a >> 3));
-        tmp5 = ((a >> 1) ^ (a >> 2));
-
-        c_bit0 = ((a & b) ^ ((a >> 5) & (b >> 1)) ^ ((a >> 4) & (b >> 2)) ^
-                  ((a >> 3) & (b >> 3)) ^ ((a >> 2) & (b >> 4)) ^ ((a >> 1) & (b >> 5))) & 0x1;
-
-        c_bit1 = (((a >> 1) & b) ^ (tmp1 & (b >> 1)) ^ (tmp2 & (b >> 2)) ^
-                  (tmp3 & (b >> 3)) ^ (tmp4 & (b >> 4)) ^ (tmp5 & (b >> 5))) & 0x1;
-
-        c_bit2 = (((a >> 2) & b) ^ ((a >> 1) & (b >> 1)) ^ (tmp1 & (b >> 2)) ^
-                  (tmp2 & (b >> 3)) ^ (tmp3 & (b >> 4)) ^ (tmp4 & (b >> 5))) & 0x1;
-
-        c_bit3 = (((a >> 3) & b) ^ ((a >> 2) & (b >> 1)) ^ ((a >> 1) & (b >> 2)) ^
-                  (tmp1 & (b >> 3)) ^ (tmp2 & (b >> 4)) ^ (tmp3 & (b >> 5))) & 0x1;
-
-        c_bit4 = (((a >> 4) & b) ^ ((a >> 3) & (b >> 1)) ^ ((a >> 2) & (b >> 2)) ^
-                  ((a >> 1) & (b >> 3)) ^ (tmp1 & (b >> 4)) ^ (tmp2 & (b >> 5))) & 0x1;
-
-        c_bit5 = (((a >> 5) & b) ^ ((a >> 4) & (b >> 1)) ^ ((a >> 3) & (b >> 2)) ^
-                  ((a >> 2) & (b >> 3)) ^ ((a >> 1) & (b >> 4)) ^ (tmp1 & (b >> 5))) & 0x1;
-
-        c = c_bit0 | (c_bit1 << 1) | (c_bit2 << 2) | (c_bit3 << 3) | (c_bit4 << 4) | (c_bit5 << 5);
-
-        return c;
-}
-
-static unsigned short gf4096_mul(unsigned short a, unsigned short b)
-{
-        unsigned short ah, al, bh, bl, alxah, blxbh, ablh, albl, ahbh, ahbhB, c;
-
-        ah = (a >> 6) & 0x3f;
-        al = a & 0x3f;
-        bh = (b >> 6) & 0x3f;
-        bl = b & 0x3f;
-        alxah = al ^ ah;
-        blxbh = bl ^ bh;
-
-        ablh = gf64_mul(alxah, blxbh);
-        albl = gf64_mul(al, bl);
-        ahbh = gf64_mul(ah, bh);
-
-        ahbhB = ((ahbh & 0x1) << 5) |
-            ((ahbh & 0x20) >> 1) |
-            ((ahbh & 0x10) >> 1) | ((ahbh & 0x8) >> 1) | ((ahbh & 0x4) >> 1) | (((ahbh >> 1) ^ ahbh) & 0x1);
-
-        c = ((ablh ^ albl) << 6) | (ahbhB ^ albl);
-        return c;
-}
-
-static void find_2bit_err_pats(unsigned short s0, unsigned short s1, unsigned short r0, unsigned short r1, unsigned short *pats)
-{
-        find_2x2_soln(0x1, 0x1, r0, r1, s0, s1, pats);
-}
-
-static void find_3bit_err_coefs(unsigned short s0, unsigned short s1,
-                                unsigned short s2, unsigned short s3, unsigned short s4, unsigned short s5, unsigned short *coefs)
-{
-        unsigned short m[3][4];
-        int row_order[3];
-
-        row_order[0] = 0;
-        row_order[1] = 1;
-        row_order[2] = 2;
-        m[0][0] = s2;
-        m[0][1] = s1;
-        m[0][2] = s0;
-        m[0][3] = s3;
-        m[1][0] = s3;
-        m[1][1] = s2;
-        m[1][2] = s1;
-        m[1][3] = s4;
-        m[2][0] = s4;
-        m[2][1] = s3;
-        m[2][2] = s2;
-        m[2][3] = s5;
-
-        if (m[0][2] != 0x0) {
-                zero_3x4_col2(m);
-        } else if (m[1][2] != 0x0) {
-                swap_3x4_rows(m, 0, 1, 4);
-                zero_3x4_col2(m);
-        } else if (m[2][2] != 0x0) {
-                swap_3x4_rows(m, 0, 2, 4);
-                zero_3x4_col2(m);
-        } else {
-                printk(KERN_ERR "Error: find_3bit_err_coefs, s0,s1,s2 all zeros!\n");
-        }
-
-        if (m[1][1] != 0x0) {
-                zero_3x4_col1(m);
-        } else if (m[2][1] != 0x0) {
-                swap_3x4_rows(m, 1, 2, 4);
-                zero_3x4_col1(m);
-        } else {
-                printk(KERN_ERR "Error: find_3bit_err_coefs, cannot resolve col 1!\n");
-        }
-
-        /* solve coefs */
-        solve_3x4(m, coefs, row_order);
-}
-
-static void zero_3x4_col2(unsigned short m[3][4])
-{
-        unsigned short minv1, minv2;
-
-        minv1 = gf4096_mul(m[1][2], gf4096_inv(m[0][2]));
-        minv2 = gf4096_mul(m[2][2], gf4096_inv(m[0][2]));
-        m[1][0] = m[1][0] ^ gf4096_mul(m[0][0], minv1);
-        m[1][1] = m[1][1] ^ gf4096_mul(m[0][1], minv1);
-        m[1][3] = m[1][3] ^ gf4096_mul(m[0][3], minv1);
-        m[2][0] = m[2][0] ^ gf4096_mul(m[0][0], minv2);
-        m[2][1] = m[2][1] ^ gf4096_mul(m[0][1], minv2);
-        m[2][3] = m[2][3] ^ gf4096_mul(m[0][3], minv2);
-}
-
-static void zero_3x4_col1(unsigned short m[3][4])
-{
-        unsigned short minv;
-        minv = gf4096_mul(m[2][1], gf4096_inv(m[1][1]));
-        m[2][0] = m[2][0] ^ gf4096_mul(m[1][0], minv);
-        m[2][3] = m[2][3] ^ gf4096_mul(m[1][3], minv);
-}
-
-static void swap_3x4_rows(unsigned short m[3][4], int i, int j, int col_width)
-{
-        unsigned short tmp0;
-        int cnt;
-        for (cnt = 0; cnt < col_width; cnt++) {
-                tmp0 = m[i][cnt];
-                m[i][cnt] = m[j][cnt];
-                m[j][cnt] = tmp0;
-        }
-}
-
-static void solve_3x4(unsigned short m[3][4], unsigned short *coefs, int *row_order)
-{
-        unsigned short tmp[3];
-        tmp[0] = gf4096_mul(m[2][3], gf4096_inv(m[2][0]));
-        tmp[1] = gf4096_mul((gf4096_mul(tmp[0], m[1][0]) ^ m[1][3]), gf4096_inv(m[1][1]));
-        tmp[2] = gf4096_mul((gf4096_mul(tmp[0], m[0][0]) ^ gf4096_mul(tmp[1], m[0][1]) ^ m[0][3]), gf4096_inv(m[0][2]));
-        sort_coefs(row_order, tmp, 3);
-        coefs[0] = tmp[0];
-        coefs[1] = tmp[1];
-        coefs[2] = tmp[2];
-}
-
-static void find_3bit_err_pats(unsigned short s0, unsigned short s1,
-                               unsigned short s2, unsigned short r0,
-                               unsigned short r1, unsigned short r2,
-                               unsigned short *pats)
-{
-        find_2x2_soln(r0 ^ r2, r1 ^ r2,
-                      gf4096_mul(r0, r0 ^ r2), gf4096_mul(r1, r1 ^ r2),
-                      gf4096_mul(s0, r2) ^ s1, gf4096_mul(s1, r2) ^ s2, pats);
-        pats[2] = s0 ^ pats[0] ^ pats[1];
-}
-
-static void find_4bit_err_coefs(unsigned short s0, unsigned short s1,
-                                unsigned short s2, unsigned short s3,
-                                unsigned short s4, unsigned short s5,
-                                unsigned short s6, unsigned short s7,
-                                unsigned short *coefs)
-{
-        unsigned short m[4][5];
-        int row_order[4];
-
-        row_order[0] = 0;
-        row_order[1] = 1;
-        row_order[2] = 2;
-        row_order[3] = 3;
-
-        m[0][0] = s3;
-        m[0][1] = s2;
-        m[0][2] = s1;
-        m[0][3] = s0;
-        m[0][4] = s4;
-        m[1][0] = s4;
-        m[1][1] = s3;
-        m[1][2] = s2;
-        m[1][3] = s1;
-        m[1][4] = s5;
-        m[2][0] = s5;
-        m[2][1] = s4;
-        m[2][2] = s3;
-        m[2][3] = s2;
-        m[2][4] = s6;
-        m[3][0] = s6;
-        m[3][1] = s5;
-        m[3][2] = s4;
-        m[3][3] = s3;
-        m[3][4] = s7;
-
-        if (m[0][3] != 0x0) {
-                zero_4x5_col3(m);
-        } else if (m[1][3] != 0x0) {
-                swap_4x5_rows(m, 0, 1, 5);
-                zero_4x5_col3(m);
-        } else if (m[2][3] != 0x0) {
-                swap_4x5_rows(m, 0, 2, 5);
-                zero_4x5_col3(m);
-        } else if (m[3][3] != 0x0) {
-                swap_4x5_rows(m, 0, 3, 5);
-                zero_4x5_col3(m);
-        } else {
-                printk(KERN_ERR "Error: find_4bit_err_coefs, s0,s1,s2,s3 all zeros!\n");
-        }
-
-        if (m[1][2] != 0x0) {
-                zero_4x5_col2(m);
-        } else if (m[2][2] != 0x0) {
-                swap_4x5_rows(m, 1, 2, 5);
-                zero_4x5_col2(m);
-        } else if (m[3][2] != 0x0) {
-                swap_4x5_rows(m, 1, 3, 5);
-                zero_4x5_col2(m);
-        } else {
-                printk(KERN_ERR "Error: find_4bit_err_coefs, cannot resolve col 2!\n");
-        }
-
-        if (m[2][1] != 0x0) {
-                zero_4x5_col1(m);
-        } else if (m[3][1] != 0x0) {
-                swap_4x5_rows(m, 2, 3, 5);
-                zero_4x5_col1(m);
-        } else {
-                printk(KERN_ERR "Error: find_4bit_err_coefs, cannot resolve col 1!\n");
-        }
-
-        solve_4x5(m, coefs, row_order);
-}
-
-static void zero_4x5_col3(unsigned short m[4][5])
-{
-        unsigned short minv1, minv2, minv3;
-
-        minv1 = gf4096_mul(m[1][3], gf4096_inv(m[0][3]));
-        minv2 = gf4096_mul(m[2][3], gf4096_inv(m[0][3]));
-        minv3 = gf4096_mul(m[3][3], gf4096_inv(m[0][3]));
-
-        m[1][0] = m[1][0] ^ gf4096_mul(m[0][0], minv1);
-        m[1][1] = m[1][1] ^ gf4096_mul(m[0][1], minv1);
-        m[1][2] = m[1][2] ^ gf4096_mul(m[0][2], minv1);
-        m[1][4] = m[1][4] ^ gf4096_mul(m[0][4], minv1);
-        m[2][0] = m[2][0] ^ gf4096_mul(m[0][0], minv2);
-        m[2][1] = m[2][1] ^ gf4096_mul(m[0][1], minv2);
-        m[2][2] = m[2][2] ^ gf4096_mul(m[0][2], minv2);
-        m[2][4] = m[2][4] ^ gf4096_mul(m[0][4], minv2);
-        m[3][0] = m[3][0] ^ gf4096_mul(m[0][0], minv3);
-        m[3][1] = m[3][1] ^ gf4096_mul(m[0][1], minv3);
-        m[3][2] = m[3][2] ^ gf4096_mul(m[0][2], minv3);
-        m[3][4] = m[3][4] ^ gf4096_mul(m[0][4], minv3);
-}
-
-static void zero_4x5_col2(unsigned short m[4][5])
-{
-        unsigned short minv2, minv3;
-
-        minv2 = gf4096_mul(m[2][2], gf4096_inv(m[1][2]));
-        minv3 = gf4096_mul(m[3][2], gf4096_inv(m[1][2]));
-
-        m[2][0] = m[2][0] ^ gf4096_mul(m[1][0], minv2);
-        m[2][1] = m[2][1] ^ gf4096_mul(m[1][1], minv2);
-        m[2][4] = m[2][4] ^ gf4096_mul(m[1][4], minv2);
-        m[3][0] = m[3][0] ^ gf4096_mul(m[1][0], minv3);
-        m[3][1] = m[3][1] ^ gf4096_mul(m[1][1], minv3);
-        m[3][4] = m[3][4] ^ gf4096_mul(m[1][4], minv3);
-}
-
-static void zero_4x5_col1(unsigned short m[4][5])
-{
-        unsigned short minv;
-
-        minv = gf4096_mul(m[3][1], gf4096_inv(m[2][1]));
-
-        m[3][0] = m[3][0] ^ gf4096_mul(m[2][0], minv);
-        m[3][4] = m[3][4] ^ gf4096_mul(m[2][4], minv);
-}
-
-static void swap_4x5_rows(unsigned short m[4][5], int i, int j, int col_width)
-{
-        unsigned short tmp0;
-        int cnt;
-
-        for (cnt = 0; cnt < col_width; cnt++) {
-                tmp0 = m[i][cnt];
-                m[i][cnt] = m[j][cnt];
-                m[j][cnt] = tmp0;
-        }
-}
-
-static void solve_4x5(unsigned short m[4][5], unsigned short *coefs, int *row_order)
-{
-        unsigned short tmp[4];
-
-        tmp[0] = gf4096_mul(m[3][4], gf4096_inv(m[3][0]));
-        tmp[1] = gf4096_mul((gf4096_mul(tmp[0], m[2][0]) ^ m[2][4]), gf4096_inv(m[2][1]));
-        tmp[2] = gf4096_mul((gf4096_mul(tmp[0], m[1][0]) ^ gf4096_mul(tmp[1], m[1][1]) ^ m[1][4]), gf4096_inv(m[1][2]));
-        tmp[3] = gf4096_mul((gf4096_mul(tmp[0], m[0][0]) ^
-                        gf4096_mul(tmp[1], m[0][1]) ^ gf4096_mul(tmp[2], m[0][2]) ^ m[0][4]), gf4096_inv(m[0][3]));
-        sort_coefs(row_order, tmp, 4);
-        coefs[0] = tmp[0];
-        coefs[1] = tmp[1];
-        coefs[2] = tmp[2];
-        coefs[3] = tmp[3];
-}
-
-static void sort_coefs(int *order, unsigned short *soln, int len)
-{
-        int cnt, start_cnt, least_ord, least_cnt;
-        unsigned short tmp0;
-        for (start_cnt = 0; start_cnt < len; start_cnt++) {
-                for (cnt = start_cnt; cnt < len; cnt++) {
-                        if (cnt == start_cnt) {
-                                least_ord = order[cnt];
-                                least_cnt = start_cnt;
-                        } else {
-                                if (least_ord > order[cnt]) {
-                                        least_ord = order[cnt];
-                                        least_cnt = cnt;
-                                }
-                        }
-                }
-                if (least_cnt != start_cnt) {
-                        tmp0 = order[least_cnt];
-                        order[least_cnt] = order[start_cnt];
-                        order[start_cnt] = tmp0;
-                        tmp0 = soln[least_cnt];
-                        soln[least_cnt] = soln[start_cnt];
-                        soln[start_cnt] = tmp0;
-                }
-        }
-}
-
-static void find_4bit_err_pats(unsigned short s0, unsigned short s1,
-                               unsigned short s2, unsigned short s3,
-                               unsigned short z1, unsigned short z2,
-                               unsigned short z3, unsigned short z4,
-                               unsigned short *pats)
-{
-        unsigned short z4_z1, z3z4_z3z3, z4_z2, s0z4_s1, z1z4_z1z1,
-                z4_z3, z2z4_z2z2, s1z4_s2, z3z3z4_z3z3z3, z1z1z4_z1z1z1, z2z2z4_z2z2z2, s2z4_s3;
-        unsigned short tmp0, tmp1, tmp2, tmp3;
-
-        z4_z1 = z4 ^ z1;
-        z3z4_z3z3 = gf4096_mul(z3, z4) ^ gf4096_mul(z3, z3);
-        z4_z2 = z4 ^ z2;
-        s0z4_s1 = gf4096_mul(s0, z4) ^ s1;
-        z1z4_z1z1 = gf4096_mul(z1, z4) ^ gf4096_mul(z1, z1);
-        z4_z3 = z4 ^ z3;
-        z2z4_z2z2 = gf4096_mul(z2, z4) ^ gf4096_mul(z2, z2);
-        s1z4_s2 = gf4096_mul(s1, z4) ^ s2;
-        z3z3z4_z3z3z3 = gf4096_mul(gf4096_mul(z3, z3), z4) ^ gf4096_mul(gf4096_mul(z3, z3), z3);
-        z1z1z4_z1z1z1 = gf4096_mul(gf4096_mul(z1, z1), z4) ^ gf4096_mul(gf4096_mul(z1, z1), z1);
-        z2z2z4_z2z2z2 = gf4096_mul(gf4096_mul(z2, z2), z4) ^ gf4096_mul(gf4096_mul(z2, z2), z2);
-        s2z4_s3 = gf4096_mul(s2, z4) ^ s3;
-
-        //find err pat 0,1
-        find_2x2_soln(gf4096_mul(z4_z1, z3z4_z3z3) ^
-                      gf4096_mul(z1z4_z1z1, z4_z3), gf4096_mul(z4_z2,
-                                                               z3z4_z3z3) ^
-                      gf4096_mul(z2z4_z2z2, z4_z3), gf4096_mul(z1z4_z1z1,
-                                                               z3z3z4_z3z3z3) ^
-                      gf4096_mul(z1z1z4_z1z1z1, z3z4_z3z3),
-                      gf4096_mul(z2z4_z2z2,
-                                 z3z3z4_z3z3z3) ^ gf4096_mul(z2z2z4_z2z2z2,
-                                                             z3z4_z3z3),
-                      gf4096_mul(s0z4_s1, z3z4_z3z3) ^ gf4096_mul(s1z4_s2,
-                                                                  z4_z3),
-                      gf4096_mul(s1z4_s2, z3z3z4_z3z3z3) ^ gf4096_mul(s2z4_s3, z3z4_z3z3), pats);
-        tmp0 = pats[0];
-        tmp1 = pats[1];
-        tmp2 = pats[0] ^ pats[1] ^ s0;
-        tmp3 = gf4096_mul(pats[0], z1) ^ gf4096_mul(pats[1], z2) ^ s1;
-
-        //find err pat 2,3
-        find_2x2_soln(0x1, 0x1, z3, z4, tmp2, tmp3, pats);
-        pats[2] = pats[0];
-        pats[3] = pats[1];
-        pats[0] = tmp0;
-        pats[1] = tmp1;
-}
-
-static void find_2x2_soln(unsigned short c00, unsigned short c01,
-                          unsigned short c10, unsigned short c11,
-                          unsigned short lval0, unsigned short lval1,
-                          unsigned short *soln)
-{
-        unsigned short m[2][3];
-        m[0][0] = c00;
-        m[0][1] = c01;
-        m[0][2] = lval0;
-        m[1][0] = c10;
-        m[1][1] = c11;
-        m[1][2] = lval1;
-
-        if (m[0][1] != 0x0) {
-                /* */
-        } else if (m[1][1] != 0x0) {
-                swap_2x3_rows(m);
-        } else {
-                printk(KERN_ERR "Warning: find_2bit_err_coefs, s0,s1 all zeros!\n");
-        }
-
-        solve_2x3(m, soln);
-}
-
-static void swap_2x3_rows(unsigned short m[2][3])
-{
-        unsigned short tmp0;
-        int cnt;
-
-        for (cnt = 0; cnt < 3; cnt++) {
-                tmp0 = m[0][cnt];
-                m[0][cnt] = m[1][cnt];
-                m[1][cnt] = tmp0;
-        }
-}
-
-static void solve_2x3(unsigned short m[2][3], unsigned short *coefs)
-{
-        unsigned short minv;
-
-        minv = gf4096_mul(m[1][1], gf4096_inv(m[0][1]));
-        m[1][0] = m[1][0] ^ gf4096_mul(m[0][0], minv);
-        m[1][2] = m[1][2] ^ gf4096_mul(m[0][2], minv);
-        coefs[0] = gf4096_mul(m[1][2], gf4096_inv(m[1][0]));
-        coefs[1] = gf4096_mul((gf4096_mul(coefs[0], m[0][0]) ^ m[0][2]), gf4096_inv(m[0][1]));
-}
-
-static unsigned char gf64_inv[64] = {
-         0,  1, 33, 62, 49, 43, 31, 44, 57, 37, 52, 28, 46, 40, 22, 25,
-        61, 54, 51, 39, 26, 35, 14, 24, 23, 15, 20, 34, 11, 53, 45,  6,
-        63,  2, 27, 21, 56,  9, 50, 19, 13, 47, 48,  5,  7, 30, 12, 41,
-        42,  4, 38, 18, 10, 29, 17, 60, 36,  8, 59, 58, 55, 16,  3, 32
-};
-
-static unsigned short gf4096_inv(unsigned short din)
-{
-        unsigned short alahxal, ah2B, deno, inv, bl, bh;
-        unsigned short ah, al, ahxal;
-        unsigned short dout;
-
-        ah = (din >> 6) & 0x3f;
-        al = din & 0x3f;
-        ahxal = ah ^ al;
-        ah2B = (((ah ^ (ah >> 3)) & 0x1) << 5) |
-                ((ah >> 1) & 0x10) |
-                ((((ah >> 5) ^ (ah >> 2)) & 0x1) << 3) |
-                ((ah >> 2) & 0x4) | ((((ah >> 4) ^ (ah >> 1)) & 0x1) << 1) | (ah & 0x1);
-        alahxal = gf64_mul(ahxal, al);
-        deno = alahxal ^ ah2B;
-        inv = gf64_inv[deno];
-        bl = gf64_mul(inv, ahxal);
-        bh = gf64_mul(inv, ah);
-        dout = ((bh & 0x3f) << 6) | (bl & 0x3f);
-        return (((bh & 0x3f) << 6) | (bl & 0x3f));
-}
-
-static unsigned short err_pos_lut[4096] = {
-        0xfff, 0x000, 0x451, 0xfff, 0xfff, 0x3cf, 0xfff, 0x041,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x28a, 0xfff, 0x492, 0xfff,
-        0x145, 0xfff, 0xfff, 0x514, 0xfff, 0x082, 0xfff, 0xfff,
-        0xfff, 0x249, 0x38e, 0x410, 0xfff, 0x104, 0x208, 0x1c7,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x2cb, 0xfff, 0xfff, 0xfff,
-        0x0c3, 0x34d, 0x4d3, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x186, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x30c, 0x555, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x166, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x385, 0x14e, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x4e1,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x538, 0xfff, 0x16d, 0xfff,
-        0xfff, 0xfff, 0x45b, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x29c, 0x2cc, 0x30b, 0x2b3, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x0b3, 0xfff, 0x2f7,
-        0xfff, 0x32b, 0xfff, 0xfff, 0xfff, 0xfff, 0x0a7, 0xfff,
-        0xfff, 0x2da, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x07e, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x11c, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x22f, 0xfff, 0x1f4, 0xfff, 0xfff,
-        0x2b0, 0x504, 0xfff, 0x114, 0xfff, 0xfff, 0xfff, 0x21d,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x00d, 0x3c4, 0x340, 0x10f,
-        0xfff, 0xfff, 0x266, 0x02e, 0xfff, 0xfff, 0xfff, 0x4f8,
-        0x337, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x07b, 0x168, 0xfff, 0xfff, 0x0fe,
-        0xfff, 0xfff, 0x51a, 0xfff, 0x458, 0xfff, 0x36d, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x073, 0x37d, 0x415, 0x550, 0xfff,
-        0xfff, 0xfff, 0x23b, 0x4b4, 0xfff, 0xfff, 0xfff, 0x1a1,
-        0xfff, 0xfff, 0x3aa, 0xfff, 0x117, 0x04d, 0x341, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x518, 0x03e, 0x0f2, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x363, 0xfff, 0x0b9, 0xfff, 0xfff,
-        0x241, 0xfff, 0xfff, 0x049, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x15f, 0x52d, 0xfff, 0xfff, 0xfff, 0x29e, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x4cf, 0x0fc, 0xfff, 0x36f, 0x3d3, 0xfff,
-        0x228, 0xfff, 0xfff, 0x45e, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x238, 0xfff, 0xfff, 0xfff, 0xfff, 0x47f, 0xfff, 0xfff,
-        0x43a, 0x265, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x3e8,
-        0xfff, 0xfff, 0x01a, 0xfff, 0xfff, 0xfff, 0xfff, 0x21e,
-        0x1fc, 0x40b, 0xfff, 0xfff, 0xfff, 0x2d0, 0x159, 0xfff,
-        0xfff, 0x313, 0xfff, 0xfff, 0x05c, 0x4cc, 0xfff, 0xfff,
-        0x0f6, 0x3d5, 0xfff, 0xfff, 0xfff, 0x54f, 0xfff, 0xfff,
-        0xfff, 0x172, 0x1e4, 0x07c, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x53c, 0x1ad, 0x535,
-        0x19b, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x092, 0xfff, 0x2be, 0xfff, 0xfff, 0x482,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x0e6, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x476, 0xfff, 0x51d, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x342, 0x2b5, 0x22e, 0x09a, 0xfff, 0x08d,
-        0x44f, 0x3ed, 0xfff, 0xfff, 0xfff, 0xfff, 0x3d1, 0xfff,
-        0xfff, 0x543, 0xfff, 0x48f, 0xfff, 0x3d2, 0xfff, 0x0d5,
-        0x113, 0x0ec, 0x427, 0xfff, 0xfff, 0xfff, 0x4c4, 0xfff,
-        0xfff, 0x50a, 0xfff, 0x144, 0xfff, 0x105, 0x39f, 0x294,
-        0x164, 0xfff, 0x31a, 0xfff, 0xfff, 0x49a, 0xfff, 0x130,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x1be, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x49e, 0x371, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x0e8, 0x49c, 0x0f4, 0xfff,
-        0x338, 0x1a7, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x36c, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x1ae, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x31b, 0xfff, 0xfff, 0x2dd, 0x522, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x2f4,
-        0x3c6, 0x30d, 0xfff, 0xfff, 0xfff, 0xfff, 0x34c, 0x18f,
-        0x30a, 0xfff, 0x01f, 0x079, 0xfff, 0xfff, 0x54d, 0x46b,
-        0x28c, 0x37f, 0xfff, 0xfff, 0xfff, 0xfff, 0x355, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x14f, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x359, 0x3fe, 0x3c5, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x423, 0xfff, 0xfff, 0x34a, 0x22c, 0xfff,
-        0x25a, 0xfff, 0xfff, 0x4ad, 0xfff, 0x28d, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x547, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x2e2, 0xfff, 0xfff, 0x1d5, 0xfff, 0x2a8, 0xfff, 0xfff,
-        0x03f, 0xfff, 0xfff, 0xfff, 0xfff, 0x3eb, 0x0fa, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x55b, 0xfff,
-        0x08e, 0xfff, 0x3ae, 0xfff, 0x3a4, 0xfff, 0x282, 0x158,
-        0xfff, 0x382, 0xfff, 0xfff, 0x499, 0xfff, 0xfff, 0x08a,
-        0xfff, 0xfff, 0xfff, 0x456, 0x3be, 0xfff, 0x1e2, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x559, 0xfff, 0x1a0, 0xfff,
-        0xfff, 0x0b4, 0xfff, 0xfff, 0xfff, 0x2df, 0xfff, 0xfff,
-        0xfff, 0x07f, 0x4f5, 0xfff, 0xfff, 0x27c, 0x133, 0x017,
-        0xfff, 0x3fd, 0xfff, 0xfff, 0xfff, 0x44d, 0x4cd, 0x17a,
-        0x0d7, 0x537, 0xfff, 0xfff, 0x353, 0xfff, 0xfff, 0x351,
-        0x366, 0xfff, 0x44a, 0xfff, 0x1a6, 0xfff, 0xfff, 0xfff,
-        0x291, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x1e3,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x389, 0xfff, 0x07a, 0xfff,
-        0x1b6, 0x2ed, 0xfff, 0xfff, 0xfff, 0xfff, 0x24e, 0x074,
-        0xfff, 0xfff, 0x3dc, 0xfff, 0x4e3, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x4eb, 0xfff, 0xfff, 0x3b8, 0x4de, 0xfff, 0x19c,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x262,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x076, 0x4e8, 0x3da,
-        0xfff, 0x531, 0xfff, 0xfff, 0x14a, 0xfff, 0x0a2, 0x433,
-        0x3df, 0x1e9, 0xfff, 0xfff, 0xfff, 0xfff, 0x3e7, 0x285,
-        0x2d8, 0xfff, 0xfff, 0xfff, 0x349, 0x18d, 0x098, 0xfff,
-        0x0df, 0x4bf, 0xfff, 0xfff, 0x0b2, 0xfff, 0x346, 0x24d,
-        0xfff, 0xfff, 0xfff, 0x24f, 0x4fa, 0x2f9, 0xfff, 0xfff,
-        0x3c9, 0xfff, 0x2b4, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x056, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x179, 0xfff, 0x0e9, 0x3f0, 0x33d, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x1fd, 0xfff, 0xfff, 0x526, 0xfff,
-        0xfff, 0xfff, 0x53d, 0xfff, 0xfff, 0xfff, 0x170, 0x331,
-        0xfff, 0x068, 0xfff, 0xfff, 0xfff, 0x3f7, 0xfff, 0x3d8,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x09f, 0x556, 0xfff, 0xfff, 0x02d, 0xfff, 0xfff,
-        0x553, 0xfff, 0xfff, 0xfff, 0x1f0, 0xfff, 0xfff, 0x4d6,
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-        0x1f6, 0xfff, 0x481, 0xfff, 0xfff, 0xfff, 0x151, 0xfff,
-        0xfff, 0xfff, 0x085, 0x33f, 0xfff, 0xfff, 0xfff, 0x084,
-        0xfff, 0xfff, 0xfff, 0x345, 0x3a2, 0xfff, 0xfff, 0x0a0,
-        0x0da, 0x024, 0xfff, 0xfff, 0xfff, 0x1bd, 0xfff, 0x55c,
-        0x467, 0x445, 0xfff, 0xfff, 0xfff, 0x052, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x51e, 0xfff, 0xfff, 0x39d, 0xfff, 0x35f,
-        0xfff, 0x376, 0x3ee, 0xfff, 0xfff, 0xfff, 0xfff, 0x448,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x16a,
-        0xfff, 0x036, 0x38f, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x211,
-        0xfff, 0xfff, 0xfff, 0x230, 0xfff, 0xfff, 0x3ba, 0xfff,
-        0xfff, 0xfff, 0x3ce, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x229, 0xfff, 0x176, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x00b, 0xfff, 0x162, 0x018, 0xfff,
-        0xfff, 0x233, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x400, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x12b, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x3f4, 0xfff, 0x0f0, 0xfff, 0x1ac, 0xfff, 0xfff,
-        0x119, 0xfff, 0x2c0, 0xfff, 0xfff, 0xfff, 0x49b, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x23c, 0xfff,
-        0x4b3, 0x010, 0x064, 0xfff, 0xfff, 0x4ba, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x3c2, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x006, 0x196, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x100, 0x191, 0xfff,
-        0x1ea, 0x29f, 0xfff, 0xfff, 0xfff, 0x276, 0xfff, 0xfff,
-        0x2b1, 0x3b9, 0xfff, 0x03c, 0xfff, 0xfff, 0xfff, 0x180,
-        0xfff, 0x08f, 0xfff, 0xfff, 0x19e, 0x019, 0xfff, 0x0b0,
-        0x0fd, 0x332, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x06b, 0x2e8, 0xfff, 0x446, 0xfff, 0xfff, 0x004,
-        0x247, 0x197, 0xfff, 0x112, 0x169, 0x292, 0xfff, 0x302,
-        0xfff, 0xfff, 0x33b, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x287, 0x21f, 0xfff, 0x3ea, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x4e7, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x3a8, 0xfff, 0xfff, 0x2bc, 0xfff,
-        0x484, 0x296, 0xfff, 0x1c9, 0x08c, 0x1e5, 0x48a, 0xfff,
-        0x360, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x1ca, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x10d, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x066, 0x2ea, 0x28b, 0x25b, 0xfff, 0x072,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x2b6, 0xfff, 0xfff, 0x272,
-        0xfff, 0xfff, 0x525, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x2ca, 0xfff, 0xfff, 0xfff, 0x299, 0xfff, 0xfff, 0xfff,
-        0x558, 0x41a, 0xfff, 0x4f7, 0x557, 0xfff, 0x4a0, 0x344,
-        0x12c, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x125,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x40e, 0xfff, 0xfff, 0x502, 0xfff, 0x103, 0x3e6, 0xfff,
-        0x527, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x45d, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x44e, 0xfff, 0xfff, 0xfff, 0xfff, 0x0d2, 0x4c9, 0x35e,
-        0x459, 0x2d9, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x17d,
-        0x0c4, 0xfff, 0xfff, 0xfff, 0x3ac, 0x390, 0x094, 0xfff,
-        0x483, 0x0ab, 0xfff, 0x253, 0xfff, 0x391, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x123, 0x0ef, 0xfff, 0xfff, 0xfff, 0x330,
-        0x38c, 0xfff, 0xfff, 0x2ae, 0xfff, 0xfff, 0xfff, 0x042,
-        0x012, 0x06d, 0xfff, 0xfff, 0xfff, 0x32a, 0x3db, 0x364,
-        0x2dc, 0xfff, 0x30f, 0x3d7, 0x4a5, 0x050, 0xfff, 0xfff,
-        0x029, 0xfff, 0xfff, 0xfff, 0xfff, 0x1d1, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x480, 0xfff,
-        0x4ed, 0x081, 0x0a1, 0xfff, 0xfff, 0xfff, 0x30e, 0x52f,
-        0x257, 0xfff, 0xfff, 0x447, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x401, 0x3cc, 0xfff, 0xfff, 0x0fb,
-        0x2c9, 0x42a, 0x314, 0x33e, 0x3bd, 0x318, 0xfff, 0x10e,
-        0x2a1, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x24c,
-        0x506, 0xfff, 0x267, 0xfff, 0xfff, 0x219, 0xfff, 0x1eb,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x309, 0x3e2, 0x46c, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x384, 0xfff, 0xfff, 0xfff, 0xfff, 0x50c, 0xfff, 0x24b,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x038,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x194,
-        0x143, 0x3e3, 0xfff, 0xfff, 0xfff, 0x4c2, 0xfff, 0xfff,
-        0x0e1, 0x25c, 0xfff, 0x237, 0xfff, 0x1fe, 0xfff, 0xfff,
-        0xfff, 0x065, 0x2a4, 0xfff, 0x386, 0x55a, 0x11b, 0xfff,
-        0xfff, 0x192, 0xfff, 0x183, 0x00e, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x4b2, 0x18e, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x486, 0x4ef, 0x0c6, 0x380, 0xfff, 0x4a8, 0xfff,
-        0x0c5, 0xfff, 0xfff, 0xfff, 0xfff, 0x093, 0x1b8, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x2e6,
-        0xfff, 0x0f3, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x28e, 0xfff, 0x53b, 0x420, 0x22a, 0x33a, 0xfff, 0x387,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x2a3, 0xfff, 0xfff,
-        0xfff, 0x428, 0x500, 0xfff, 0xfff, 0x120, 0x2c6, 0x290,
-        0x2f5, 0x0e3, 0xfff, 0x0b7, 0xfff, 0x319, 0x474, 0xfff,
-        0xfff, 0xfff, 0x529, 0x014, 0xfff, 0x41b, 0x40a, 0x18b,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x0d9,
-        0xfff, 0x38a, 0xfff, 0xfff, 0xfff, 0xfff, 0x1ce, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x3b1, 0xfff, 0xfff, 0x05d,
-        0x2c4, 0xfff, 0xfff, 0x4af, 0xfff, 0x030, 0xfff, 0xfff,
-        0x203, 0xfff, 0x277, 0x256, 0xfff, 0xfff, 0xfff, 0x4f9,
-        0xfff, 0x2c7, 0xfff, 0x466, 0x016, 0x1cd, 0xfff, 0x167,
-        0xfff, 0xfff, 0x0c8, 0xfff, 0x43d, 0xfff, 0xfff, 0x020,
-        0xfff, 0xfff, 0x232, 0x1cb, 0x1e0, 0xfff, 0xfff, 0x347,
-        0xfff, 0x478, 0xfff, 0x365, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x358, 0xfff, 0x10b, 0xfff, 0x35d, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x452, 0x22d, 0xfff, 0xfff, 0x47d, 0xfff,
-        0x2f3, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x460, 0xfff,
-        0xfff, 0xfff, 0x50b, 0xfff, 0xfff, 0xfff, 0x2ec, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x4b1, 0x422, 0xfff, 0xfff,
-        0xfff, 0x2d4, 0xfff, 0x239, 0xfff, 0xfff, 0xfff, 0x439,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x491, 0x075, 0xfff, 0xfff, 0xfff, 0x06c, 0xfff,
-        0xfff, 0x0f9, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x139, 0xfff, 0x4f6, 0xfff, 0xfff, 0x409, 0xfff,
-        0xfff, 0x15b, 0xfff, 0xfff, 0x348, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x4a2, 0x49d, 0xfff, 0x033, 0x175, 0xfff, 0x039,
-        0xfff, 0x312, 0x40c, 0xfff, 0xfff, 0x325, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x4aa, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0x165, 0x3bc, 0x48c, 0x310, 0x096,
-        0xfff, 0xfff, 0x250, 0x1a2, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x20d, 0x2ac, 0xfff, 0xfff, 0x39b, 0xfff, 0x377, 0xfff,
-        0x512, 0x495, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x357, 0x4ea, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x198, 0xfff, 0xfff, 0xfff, 0x434, 0x04a,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x062, 0xfff, 0x1d6, 0x1c8,
-        0xfff, 0x1f3, 0x281, 0xfff, 0x462, 0xfff, 0xfff, 0xfff,
-        0x4b0, 0xfff, 0x207, 0xfff, 0xfff, 0xfff, 0xfff, 0x3dd,
-        0xfff, 0xfff, 0x55d, 0xfff, 0x552, 0x494, 0x1af, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x227, 0xfff, 0xfff, 0x069,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x43e,
-        0x0b5, 0xfff, 0x524, 0x2d2, 0xfff, 0xfff, 0xfff, 0x28f,
-        0xfff, 0x01b, 0x50e, 0xfff, 0xfff, 0x1bb, 0xfff, 0xfff,
-        0x41d, 0xfff, 0x32e, 0x48e, 0xfff, 0x1f7, 0x224, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x394, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x52c, 0xfff, 0xfff, 0xfff, 0x392, 0xfff, 0x1e7,
-        0xfff, 0xfff, 0x3f9, 0x3a7, 0xfff, 0x51f, 0xfff, 0x0bb,
-        0x118, 0x3ca, 0xfff, 0x1dd, 0xfff, 0x48b, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x50f, 0xfff, 0x0d6, 0xfff, 0x1fa, 0xfff,
-        0x11e, 0xfff, 0xfff, 0xfff, 0xfff, 0x4d7, 0xfff, 0x078,
-        0x008, 0xfff, 0x25d, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x032, 0x33c, 0xfff, 0x4d9, 0x160, 0xfff, 0xfff, 0x300,
-        0x0b1, 0xfff, 0x322, 0xfff, 0x4ec, 0xfff, 0xfff, 0x200,
-        0x00c, 0x369, 0x473, 0xfff, 0xfff, 0x32c, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x53e, 0x3d4, 0x417, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x34b, 0x001, 0x39a, 0x02c, 0xfff, 0xfff, 0x2ce, 0x00f,
-        0xfff, 0x0ba, 0xfff, 0xfff, 0xfff, 0xfff, 0x060, 0xfff,
-        0x406, 0xfff, 0xfff, 0xfff, 0x4ee, 0x4ac, 0xfff, 0x43f,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x29b, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x216,
-        0x190, 0xfff, 0x396, 0x464, 0xfff, 0xfff, 0x323, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x2e9, 0xfff, 0x26d,
-        0x2cd, 0x040, 0xfff, 0xfff, 0xfff, 0xfff, 0x38b, 0x3c0,
-        0xfff, 0xfff, 0xfff, 0x1f2, 0xfff, 0x0ea, 0xfff, 0xfff,
-        0x472, 0xfff, 0x1fb, 0xfff, 0xfff, 0x0af, 0x27f, 0xfff,
-        0xfff, 0xfff, 0x479, 0x023, 0xfff, 0x0d8, 0x3b3, 0xfff,
-        0xfff, 0xfff, 0x121, 0xfff, 0xfff, 0x3bf, 0xfff, 0xfff,
-        0x16b, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x45a, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x0be, 0xfff, 0xfff, 0xfff, 0x111, 0xfff, 0x220,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x09b, 0x218, 0xfff, 0x022, 0x202, 0xfff,
-        0x4c8, 0xfff, 0x0ed, 0xfff, 0xfff, 0x182, 0xfff, 0xfff,
-        0xfff, 0x17f, 0x213, 0xfff, 0x321, 0x36a, 0xfff, 0x086,
-        0xfff, 0xfff, 0xfff, 0x43b, 0x088, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x26c, 0xfff, 0x2f8, 0x3b4, 0xfff, 0xfff, 0xfff,
-        0x132, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x333, 0x444,
-        0x0c1, 0x4d8, 0x46d, 0x264, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x426, 0xfff, 0xfff, 0xfff, 0xfff, 0x2fe, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x011, 0xfff, 0x05f, 0xfff, 0xfff, 0xfff,
-        0xfff, 0x10c, 0x101, 0xfff, 0xfff, 0xfff, 0xfff, 0x110,
-        0xfff, 0x044, 0x304, 0x361, 0x404, 0xfff, 0x51b, 0x099,
-        0xfff, 0x440, 0xfff, 0xfff, 0xfff, 0x222, 0xfff, 0xfff,
-        0xfff, 0xfff, 0x1b5, 0xfff, 0x136, 0x430, 0xfff, 0x1da,
-        0xfff, 0xfff, 0xfff, 0x043, 0xfff, 0x17c, 0xfff, 0xfff,
-        0xfff, 0x01c, 0xfff, 0xfff, 0xfff, 0x425, 0x236, 0xfff,
-        0x317, 0xfff, 0xfff, 0x437, 0x3fc, 0xfff, 0x1f1, 0xfff,
-        0x324, 0xfff, 0xfff, 0x0ca, 0x306, 0xfff, 0x548, 0xfff,
-        0x46e, 0xfff, 0xfff, 0xfff, 0x4b8, 0x1c2, 0x286, 0xfff,
-        0xfff, 0x087, 0x18a, 0x19f, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x18c, 0xfff, 0x215, 0xfff, 0xfff, 0xfff, 0xfff, 0x283,
-        0xfff, 0xfff, 0xfff, 0x126, 0xfff, 0xfff, 0x370, 0xfff,
-        0x53f, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0x31c, 0xfff,
-        0x4d1, 0xfff, 0xfff, 0xfff, 0x021, 0xfff, 0x157, 0xfff,
-        0xfff, 0x028, 0x16e, 0xfff, 0x421, 0xfff, 0x1c6, 0xfff,
-        0xfff, 0x511, 0xfff, 0xfff, 0x39c, 0x46f, 0x1b2, 0xfff,
-        0xfff, 0x316, 0xfff, 0xfff, 0x009, 0xfff, 0xfff, 0x195,
-        0xfff, 0x240, 0x546, 0xfff, 0xfff, 0x520, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x454, 0xfff, 0xfff, 0xfff,
-        0x3f3, 0xfff, 0xfff, 0x187, 0xfff, 0x4a9, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x51c, 0x453, 0x1e6, 0xfff,
-        0xfff, 0xfff, 0x1b0, 0xfff, 0x477, 0xfff, 0xfff, 0xfff,
-        0x4fe, 0xfff, 0x32f, 0xfff, 0xfff, 0x15e, 0x1d4, 0xfff,
-        0x0e5, 0xfff, 0xfff, 0xfff, 0x242, 0x14b, 0x046, 0xfff,
-        0x3f6, 0x3bb, 0x3e4, 0xfff, 0xfff, 0x2e3, 0xfff, 0x245,
-        0xfff, 0x149, 0xfff, 0xfff, 0xfff, 0x2db, 0xfff, 0xfff,
-        0x181, 0xfff, 0x089, 0x2c5, 0xfff, 0x1f5, 0xfff, 0x2d6,
-        0x507, 0xfff, 0x42d, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0x080, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff, 0xfff,
-        0xfff, 0xfff, 0xfff, 0xfff, 0x3c3, 0x320, 0xfff, 0x1e1,
-        0xfff, 0x0f5, 0x13b, 0xfff, 0xfff, 0xfff, 0x003, 0x4da,
-        0xfff, 0xfff, 0xfff, 0x42c, 0xfff, 0xfff, 0x0cb, 0xfff,
-        0x536, 0x2c3, 0xfff, 0xfff, 0xfff, 0xfff, 0x199, 0xfff,
-        0xfff, 0x0c0, 0xfff, 0x01e, 0x497, 0xfff, 0xfff, 0x3e5,
-        0xfff, 0xfff, 0xfff, 0x0cf, 0xfff, 0x2bd, 0xfff, 0x223,
-        0xfff, 0x3ff, 0xfff, 0x058, 0x174, 0x3ef, 0xfff, 0x002
-};
-
-static unsigned short err_pos(unsigned short din)
-{
-        BUG_ON(din >= ARRAY_SIZE(err_pos_lut));
-        return err_pos_lut[din];
-}
-static int chk_no_err_only(unsigned short *chk_syndrome_list, unsigned short *err_info)
-{
-        if ((chk_syndrome_list[0] | chk_syndrome_list[1] |
-             chk_syndrome_list[2] | chk_syndrome_list[3] |
-             chk_syndrome_list[4] | chk_syndrome_list[5] |
-             chk_syndrome_list[6] | chk_syndrome_list[7]) != 0x0) {
-                return -EINVAL;
-        } else {
-                err_info[0] = 0x0;
-                return 0;
-        }
-}
-static int chk_1_err_only(unsigned short *chk_syndrome_list, unsigned short *err_info)
-{
-        unsigned short tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6;
-        tmp0 = gf4096_mul(chk_syndrome_list[1], gf4096_inv(chk_syndrome_list[0]));
-        tmp1 = gf4096_mul(chk_syndrome_list[2], gf4096_inv(chk_syndrome_list[1]));
-        tmp2 = gf4096_mul(chk_syndrome_list[3], gf4096_inv(chk_syndrome_list[2]));
-        tmp3 = gf4096_mul(chk_syndrome_list[4], gf4096_inv(chk_syndrome_list[3]));
-        tmp4 = gf4096_mul(chk_syndrome_list[5], gf4096_inv(chk_syndrome_list[4]));
-        tmp5 = gf4096_mul(chk_syndrome_list[6], gf4096_inv(chk_syndrome_list[5]));
-        tmp6 = gf4096_mul(chk_syndrome_list[7], gf4096_inv(chk_syndrome_list[6]));
-        if ((tmp0 == tmp1) & (tmp1 == tmp2) & (tmp2 == tmp3) & (tmp3 == tmp4) & (tmp4 == tmp5) & (tmp5 == tmp6)) {
-                err_info[0] = 0x1;      // encode 1-symbol error as 0x1
-                err_info[1] = err_pos(tmp0);
-                err_info[1] = (unsigned short)(0x55e - err_info[1]);
-                err_info[5] = chk_syndrome_list[0];
-                return 0;
-        } else
-                return -EINVAL;
-}
-static int chk_2_err_only(unsigned short *chk_syndrome_list, unsigned short *err_info)
-{
-        unsigned short tmp0, tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
-        unsigned short coefs[4];
-        unsigned short err_pats[4];
-        int found_num_root = 0;
-        unsigned short bit2_root0, bit2_root1;
-        unsigned short bit2_root0_inv, bit2_root1_inv;
-        unsigned short err_loc_eqn, test_root;
-        unsigned short bit2_loc0, bit2_loc1;
-        unsigned short bit2_pat0, bit2_pat1;
-
-        find_2x2_soln(chk_syndrome_list[1],
-                      chk_syndrome_list[0],
-                      chk_syndrome_list[2], chk_syndrome_list[1], chk_syndrome_list[2], chk_syndrome_list[3], coefs);
-        for (test_root = 0x1; test_root < 0xfff; test_root++) {
-                err_loc_eqn =
-                    gf4096_mul(coefs[1], gf4096_mul(test_root, test_root)) ^ gf4096_mul(coefs[0], test_root) ^ 0x1;
-                if (err_loc_eqn == 0x0) {
-                        if (found_num_root == 0) {
-                                bit2_root0 = test_root;
-                                found_num_root = 1;
-                        } else if (found_num_root == 1) {
-                                bit2_root1 = test_root;
-                                found_num_root = 2;
-                                break;
-                        }
-                }
-        }
-        if (found_num_root != 2)
-                return -EINVAL;
-        else {
-                bit2_root0_inv = gf4096_inv(bit2_root0);
-                bit2_root1_inv = gf4096_inv(bit2_root1);
-                find_2bit_err_pats(chk_syndrome_list[0],
-                                   chk_syndrome_list[1], bit2_root0_inv, bit2_root1_inv, err_pats);
-                bit2_pat0 = err_pats[0];
-                bit2_pat1 = err_pats[1];
-                //for(x+1)
-                tmp0 = gf4096_mul(gf4096_mul(bit2_root0_inv, bit2_root0_inv), gf4096_mul(bit2_root0_inv, bit2_root0_inv));      //rinv0^4
-                tmp1 = gf4096_mul(bit2_root0_inv, tmp0);        //rinv0^5
-                tmp2 = gf4096_mul(bit2_root0_inv, tmp1);        //rinv0^6
-                tmp3 = gf4096_mul(bit2_root0_inv, tmp2);        //rinv0^7
-                tmp4 = gf4096_mul(gf4096_mul(bit2_root1_inv, bit2_root1_inv), gf4096_mul(bit2_root1_inv, bit2_root1_inv));      //rinv1^4
-                tmp5 = gf4096_mul(bit2_root1_inv, tmp4);        //rinv1^5
-                tmp6 = gf4096_mul(bit2_root1_inv, tmp5);        //rinv1^6
-                tmp7 = gf4096_mul(bit2_root1_inv, tmp6);        //rinv1^7
-                //check if only 2-bit error
-                if ((chk_syndrome_list[4] ==
-                     (gf4096_mul(bit2_pat0, tmp0) ^
-                      gf4096_mul(bit2_pat1,
-                                 tmp4))) & (chk_syndrome_list[5] ==
-                                            (gf4096_mul(bit2_pat0, tmp1) ^
-                                             gf4096_mul(bit2_pat1,
-                                                        tmp5))) &
-                    (chk_syndrome_list[6] ==
-                     (gf4096_mul(bit2_pat0, tmp2) ^
-                      gf4096_mul(bit2_pat1,
-                                 tmp6))) & (chk_syndrome_list[7] ==
-                                            (gf4096_mul(bit2_pat0, tmp3) ^ gf4096_mul(bit2_pat1, tmp7)))) {
-                        if ((err_pos(bit2_root0_inv) == 0xfff) | (err_pos(bit2_root1_inv) == 0xfff)) {
-                                return -EINVAL;
-                        } else {
-                                bit2_loc0 = 0x55e - err_pos(bit2_root0_inv);
-                                bit2_loc1 = 0x55e - err_pos(bit2_root1_inv);
-                                err_info[0] = 0x2;      // encode 2-symbol error as 0x2
-                                err_info[1] = bit2_loc0;
-                                err_info[2] = bit2_loc1;
-                                err_info[5] = bit2_pat0;
-                                err_info[6] = bit2_pat1;
-                                return 0;
-                        }
-                } else
-                        return -EINVAL;
-        }
-}
-static int chk_3_err_only(unsigned short *chk_syndrome_list, unsigned short *err_info)
-{
-        unsigned short tmp0, tmp1, tmp2, tmp3, tmp4, tmp5;
-        unsigned short coefs[4];
-        unsigned short err_pats[4];
-        int found_num_root = 0;
-        unsigned short bit3_root0, bit3_root1, bit3_root2;
-        unsigned short bit3_root0_inv, bit3_root1_inv, bit3_root2_inv;
-        unsigned short err_loc_eqn, test_root;
-
-        find_3bit_err_coefs(chk_syndrome_list[0], chk_syndrome_list[1],
-                            chk_syndrome_list[2], chk_syndrome_list[3],
-                            chk_syndrome_list[4], chk_syndrome_list[5], coefs);
-
-        for (test_root = 0x1; test_root < 0xfff; test_root++) {
-                err_loc_eqn = gf4096_mul(coefs[2],
-                                         gf4096_mul(gf4096_mul(test_root, test_root),
-                                                    test_root)) ^ gf4096_mul(coefs[1], gf4096_mul(test_root, test_root))
-                        ^ gf4096_mul(coefs[0], test_root) ^ 0x1;
-
-                if (err_loc_eqn == 0x0) {
-                        if (found_num_root == 0) {
-                                bit3_root0 = test_root;
-                                found_num_root = 1;
-                        } else if (found_num_root == 1) {
-                                bit3_root1 = test_root;
-                                found_num_root = 2;
-                        } else if (found_num_root == 2) {
-                                bit3_root2 = test_root;
-                                found_num_root = 3;
-                                break;
-                        }
-                }
-        }
-        if (found_num_root != 3)
-                return -EINVAL;
-        else {
-                bit3_root0_inv = gf4096_inv(bit3_root0);
-                bit3_root1_inv = gf4096_inv(bit3_root1);
-                bit3_root2_inv = gf4096_inv(bit3_root2);
-
-                find_3bit_err_pats(chk_syndrome_list[0], chk_syndrome_list[1],
-                                   chk_syndrome_list[2], bit3_root0_inv,
-                                   bit3_root1_inv, bit3_root2_inv, err_pats);
-
-                //check if only 3-bit error
-                tmp0 = gf4096_mul(bit3_root0_inv, bit3_root0_inv);
-                tmp0 = gf4096_mul(tmp0, tmp0);
-                tmp0 = gf4096_mul(tmp0, bit3_root0_inv);
-                tmp0 = gf4096_mul(tmp0, bit3_root0_inv);        //rinv0^6
-                tmp1 = gf4096_mul(tmp0, bit3_root0_inv);        //rinv0^7
-                tmp2 = gf4096_mul(bit3_root1_inv, bit3_root1_inv);
-                tmp2 = gf4096_mul(tmp2, tmp2);
-                tmp2 = gf4096_mul(tmp2, bit3_root1_inv);
-                tmp2 = gf4096_mul(tmp2, bit3_root1_inv);        //rinv1^6
-                tmp3 = gf4096_mul(tmp2, bit3_root1_inv);        //rinv1^7
-                tmp4 = gf4096_mul(bit3_root2_inv, bit3_root2_inv);
-                tmp4 = gf4096_mul(tmp4, tmp4);
-                tmp4 = gf4096_mul(tmp4, bit3_root2_inv);
-                tmp4 = gf4096_mul(tmp4, bit3_root2_inv);        //rinv2^6
-                tmp5 = gf4096_mul(tmp4, bit3_root2_inv);        //rinv2^7
-
-                //check if only 3 errors
-                if ((chk_syndrome_list[6] == (gf4096_mul(err_pats[0], tmp0) ^
-                                              gf4096_mul(err_pats[1], tmp2) ^
-                                              gf4096_mul(err_pats[2], tmp4))) &
-                    (chk_syndrome_list[7] == (gf4096_mul(err_pats[0], tmp1) ^
-                                              gf4096_mul(err_pats[1], tmp3) ^ gf4096_mul(err_pats[2], tmp5)))) {
-                        if ((err_pos(bit3_root0_inv) == 0xfff) |
-                            (err_pos(bit3_root1_inv) == 0xfff) | (err_pos(bit3_root2_inv) == 0xfff)) {
-                                return -EINVAL;
-                        } else {
-                                err_info[0] = 0x3;
-                                err_info[1] = (0x55e - err_pos(bit3_root0_inv));
-                                err_info[2] = (0x55e - err_pos(bit3_root1_inv));
-                                err_info[3] = (0x55e - err_pos(bit3_root2_inv));
-                                err_info[5] = err_pats[0];
-                                err_info[6] = err_pats[1];
-                                err_info[7] = err_pats[2];
-                                return 0;
-                        }
-                } else
-                        return -EINVAL;
-        }
-}
-static int chk_4_err_only(unsigned short *chk_syndrome_list, unsigned short *err_info)
-{
-        unsigned short coefs[4];
-        unsigned short err_pats[4];
-        int found_num_root = 0;
-        unsigned short bit4_root0, bit4_root1, bit4_root2, bit4_root3;
-        unsigned short bit4_root0_inv, bit4_root1_inv, bit4_root2_inv, bit4_root3_inv;
-        unsigned short err_loc_eqn, test_root;
-
-        find_4bit_err_coefs(chk_syndrome_list[0],
-                            chk_syndrome_list[1],
-                            chk_syndrome_list[2],
-                            chk_syndrome_list[3],
-                            chk_syndrome_list[4],
-                            chk_syndrome_list[5], chk_syndrome_list[6], chk_syndrome_list[7], coefs);
-
-        for (test_root = 0x1; test_root < 0xfff; test_root++) {
-                err_loc_eqn =
-                    gf4096_mul(coefs[3],
-                               gf4096_mul(gf4096_mul
-                                          (gf4096_mul(test_root, test_root),
-                                           test_root),
-                                          test_root)) ^ gf4096_mul(coefs[2],
-                                                                   gf4096_mul
-                                                                   (gf4096_mul(test_root, test_root), test_root))
-                    ^ gf4096_mul(coefs[1], gf4096_mul(test_root, test_root)) ^ gf4096_mul(coefs[0], test_root)
-                    ^ 0x1;
-                if (err_loc_eqn == 0x0) {
-                        if (found_num_root == 0) {
-                                bit4_root0 = test_root;
-                                found_num_root = 1;
-                        } else if (found_num_root == 1) {
-                                bit4_root1 = test_root;
-                                found_num_root = 2;
-                        } else if (found_num_root == 2) {
-                                bit4_root2 = test_root;
-                                found_num_root = 3;
-                        } else {
-                                found_num_root = 4;
-                                bit4_root3 = test_root;
-                                break;
-                        }
-                }
-        }
-        if (found_num_root != 4) {
-                return -EINVAL;
-        } else {
-                bit4_root0_inv = gf4096_inv(bit4_root0);
-                bit4_root1_inv = gf4096_inv(bit4_root1);
-                bit4_root2_inv = gf4096_inv(bit4_root2);
-                bit4_root3_inv = gf4096_inv(bit4_root3);
-                find_4bit_err_pats(chk_syndrome_list[0],
-                                   chk_syndrome_list[1],
-                                   chk_syndrome_list[2],
-                                   chk_syndrome_list[3],
-                                   bit4_root0_inv, bit4_root1_inv, bit4_root2_inv, bit4_root3_inv, err_pats);
-                err_info[0] = 0x4;
-                err_info[1] = (0x55e - err_pos(bit4_root0_inv));
-                err_info[2] = (0x55e - err_pos(bit4_root1_inv));
-                err_info[3] = (0x55e - err_pos(bit4_root2_inv));
-                err_info[4] = (0x55e - err_pos(bit4_root3_inv));
-                err_info[5] = err_pats[0];
-                err_info[6] = err_pats[1];
-                err_info[7] = err_pats[2];
-                err_info[8] = err_pats[3];
-                return 0;
-        }
-}
-
-void correct_12bit_symbol(unsigned char *buf, unsigned short sym,
-                          unsigned short val)
-{
-        if (unlikely(sym > 1366)) {
-                printk(KERN_ERR "Error: symbol %d out of range; cannot correct\n", sym);
-        } else if (sym == 0) {
-                buf[0] ^= val;
-        } else if (sym & 1) {
-                buf[1+(3*(sym-1))/2] ^= (val >> 4);
-                buf[2+(3*(sym-1))/2] ^= ((val & 0xf) << 4);
-        } else {
-                buf[2+(3*(sym-2))/2] ^= (val >> 8);
-                buf[3+(3*(sym-2))/2] ^= (val & 0xff);
-        }
-}
-
-static int debugecc = 0;
-module_param(debugecc, int, 0644);
-
-int cafe_correct_ecc(unsigned char *buf,
-                     unsigned short *chk_syndrome_list)
-{
-        unsigned short err_info[9];
-        int i;
-
-        if (debugecc) {
-                printk(KERN_WARNING "cafe_correct_ecc invoked. Syndromes %x %x %x %x %x %x %x %x\n",
-                       chk_syndrome_list[0], chk_syndrome_list[1],
-                       chk_syndrome_list[2], chk_syndrome_list[3],
-                       chk_syndrome_list[4], chk_syndrome_list[5],
-                       chk_syndrome_list[6], chk_syndrome_list[7]);
-                for (i=0; i < 2048; i+=16) {
-                        printk(KERN_WARNING "D %04x: %02x %02x %02x %02x %02x %02x %02x %02x  %02x %02x %02x %02x %02x %02x %02x %02x\n",
-                               i,
-                               buf[i], buf[i+1], buf[i+2], buf[i+3],
-                               buf[i+4], buf[i+5], buf[i+6], buf[i+7],
-                               buf[i+8], buf[i+9], buf[i+10], buf[i+11],
-                               buf[i+12], buf[i+13], buf[i+14], buf[i+15]);
-                }
-                for ( ; i < 2112; i+=16) {
-                        printk(KERN_WARNING "O   %02x: %02x %02x %02x %02x %02x %02x %02x %02x  %02x %02x %02x %02x %02x %02x %02x %02x\n",
-                               i - 2048,
-                               buf[i], buf[i+1], buf[i+2], buf[i+3],
-                               buf[i+4], buf[i+5], buf[i+6], buf[i+7],
-                               buf[i+8], buf[i+9], buf[i+10], buf[i+11],
-                               buf[i+12], buf[i+13], buf[i+14], buf[i+15]);
-                }
-        }
-
-
-
-        if (chk_no_err_only(chk_syndrome_list, err_info) &&
-            chk_1_err_only(chk_syndrome_list, err_info) &&
-            chk_2_err_only(chk_syndrome_list, err_info) &&
-            chk_3_err_only(chk_syndrome_list, err_info) &&
-            chk_4_err_only(chk_syndrome_list, err_info)) {
-                return -EIO;
-        }
-
-        for (i=0; i < err_info[0]; i++) {
-                if (debugecc)
-                        printk(KERN_WARNING "Correct symbol %d with 0x%03x\n",
-                               err_info[1+i], err_info[5+i]);
-
-                correct_12bit_symbol(buf, err_info[1+i], err_info[5+i]);
-        }
-
-        return err_info[0];
-}
-
diff --git a/drivers/mtd/nand/cafe.c b/drivers/mtd/nand/cafe_nand.c
index c328a7514510..cff969d05d4a 100644
--- a/drivers/mtd/nand/cafe.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -11,6 +11,7 @@
 #undef DEBUG
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
+#include <linux/rslib.h>
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
@@ -46,13 +47,14 @@
 #define CAFE_GLOBAL_IRQ_MASK    0x300c
 #define CAFE_NAND_RESET         0x3034
 
-int cafe_correct_ecc(unsigned char *buf,
-                     unsigned short *chk_syndrome_list);
+/* Missing from the datasheet: bit 19 of CTRL1 sets CE0 vs. CE1 */
+#define CTRL1_CHIPSELECT        (1<<19)
 
 struct cafe_priv {
         struct nand_chip nand;
         struct pci_dev *pdev;
         void __iomem *mmio;
+        struct rs_control *rs;
         uint32_t ctl1;
         uint32_t ctl2;
         int datalen;
@@ -195,8 +197,8 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
 
         cafe->data_pos = cafe->datalen = 0;
 
-        /* Set command valid bit */
-        ctl1 = 0x80000000 | command;
+        /* Set command valid bit, mask in the chip select bit  */
+        ctl1 = 0x80000000 | command | (cafe->ctl1 & CTRL1_CHIPSELECT);
 
         /* Set RD or WR bits as appropriate */
         if (command == NAND_CMD_READID || command == NAND_CMD_STATUS) {
@@ -309,8 +311,16 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd, unsigned command,
 
 static void cafe_select_chip(struct mtd_info *mtd, int chipnr)
 {
-        //struct cafe_priv *cafe = mtd->priv;
-        //      cafe_dev_dbg(&cafe->pdev->dev, "select_chip %d\n", chipnr);
+        struct cafe_priv *cafe = mtd->priv;
+
+        cafe_dev_dbg(&cafe->pdev->dev, "select_chip %d\n", chipnr);
+
+        /* Mask the appropriate bit into the stored value of ctl1
+           which will be used by cafe_nand_cmdfunc() */
+        if (chipnr)
+                cafe->ctl1 |= CTRL1_CHIPSELECT;
+        else
+                cafe->ctl1 &= ~CTRL1_CHIPSELECT;
 }
 
 static int cafe_nand_interrupt(int irq, void *id)
@@ -374,28 +384,66 @@ static int cafe_nand_read_page(struct mtd_info *mtd, struct nand_chip *chip,
         chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
 
         if (checkecc && cafe_readl(cafe, NAND_ECC_RESULT) & (1<<18)) {
-                unsigned short syn[8];
-                int i;
+                unsigned short syn[8], pat[4];
+                int pos[4];
+                u8 *oob = chip->oob_poi;
+                int i, n;
 
                 for (i=0; i<8; i+=2) {
                         uint32_t tmp = cafe_readl(cafe, NAND_ECC_SYN01 + (i*2));
-                        syn[i] = tmp & 0xfff;
-                        syn[i+1] = (tmp >> 16) & 0xfff;
+                        syn[i] = cafe->rs->index_of[tmp & 0xfff];
+                        syn[i+1] = cafe->rs->index_of[(tmp >> 16) & 0xfff];
+                }
+
+                n = decode_rs16(cafe->rs, NULL, NULL, 1367, syn, 0, pos, 0,
+                                pat);
+
+                for (i = 0; i < n; i++) {
+                        int p = pos[i];
+
+                        /* The 12-bit symbols are mapped to bytes here */
+
+                        if (p > 1374) {
+                                /* out of range */
+                                n = -1374;
+                        } else if (p == 0) {
+                                /* high four bits do not correspond to data */
+                                if (pat[i] > 0xff)
+                                        n = -2048;
+                                else
+                                        buf[0] ^= pat[i];
+                        } else if (p == 1365) {
+                                buf[2047] ^= pat[i] >> 4;
+                                oob[0] ^= pat[i] << 4;
+                        } else if (p > 1365) {
+                                if ((p & 1) == 1) {
+                                        oob[3*p/2 - 2048] ^= pat[i] >> 4;
+                                        oob[3*p/2 - 2047] ^= pat[i] << 4;
+                                } else {
+                                        oob[3*p/2 - 2049] ^= pat[i] >> 8;
+                                        oob[3*p/2 - 2048] ^= pat[i];
+                                }
+                        } else if ((p & 1) == 1) {
+                                buf[3*p/2] ^= pat[i] >> 4;
+                                buf[3*p/2 + 1] ^= pat[i] << 4;
+                        } else {
+                                buf[3*p/2 - 1] ^= pat[i] >> 8;
+                                buf[3*p/2] ^= pat[i];
+                        }
                 }
 
-                if ((i = cafe_correct_ecc(buf, syn)) < 0) {
+                if (n < 0) {
                         dev_dbg(&cafe->pdev->dev, "Failed to correct ECC at %08x\n",
                                 cafe_readl(cafe, NAND_ADDR2) * 2048);
-                        for (i=0; i< 0x5c; i+=4)
+                        for (i = 0; i < 0x5c; i += 4)
                                 printk("Register %x: %08x\n", i, readl(cafe->mmio + i));
                         mtd->ecc_stats.failed++;
                 } else {
-                        dev_dbg(&cafe->pdev->dev, "Corrected %d symbol errors\n", i);
-                        mtd->ecc_stats.corrected += i;
+                        dev_dbg(&cafe->pdev->dev, "Corrected %d symbol errors\n", n);
+                        mtd->ecc_stats.corrected += n;
                 }
         }
 
-
         return 0;
 }
 
@@ -416,7 +464,7 @@ static uint8_t cafe_mirror_pattern_512[] = { 0xBC };
 
 static struct nand_bbt_descr cafe_bbt_main_descr_2048 = {
         .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
-                | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
+                | NAND_BBT_2BIT | NAND_BBT_VERSION,
         .offs = 14,
         .len = 4,
         .veroffs = 18,
@@ -426,7 +474,7 @@ static struct nand_bbt_descr cafe_bbt_main_descr_2048 = {
 
 static struct nand_bbt_descr cafe_bbt_mirror_descr_2048 = {
         .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
-                | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
+                | NAND_BBT_2BIT | NAND_BBT_VERSION,
         .offs = 14,
         .len = 4,
         .veroffs = 18,
@@ -442,7 +490,7 @@ static struct nand_ecclayout cafe_oobinfo_512 = {
 
 static struct nand_bbt_descr cafe_bbt_main_descr_512 = {
         .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
-                | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
+                | NAND_BBT_2BIT | NAND_BBT_VERSION,
         .offs = 14,
         .len = 1,
         .veroffs = 15,
@@ -452,7 +500,7 @@ static struct nand_bbt_descr cafe_bbt_main_descr_512 = {
 
 static struct nand_bbt_descr cafe_bbt_mirror_descr_512 = {
         .options = NAND_BBT_LASTBLOCK | NAND_BBT_CREATE | NAND_BBT_WRITE
-                | NAND_BBT_2BIT | NAND_BBT_VERSION | NAND_BBT_PERCHIP,
+                | NAND_BBT_2BIT | NAND_BBT_VERSION,
         .offs = 14,
         .len = 1,
         .veroffs = 15,
@@ -525,6 +573,48 @@ static int cafe_nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
         return 0;
 }
 
+/* F_2[X]/(X**6+X+1)  */
+static unsigned short __devinit gf64_mul(u8 a, u8 b)
+{
+        u8 c;
+        unsigned int i;
+
+        c = 0;
+        for (i = 0; i < 6; i++) {
+                if (a & 1)
+                        c ^= b;
+                a >>= 1;
+                b <<= 1;
+                if ((b & 0x40) != 0)
+                        b ^= 0x43;
+        }
+
+        return c;
+}
+
+/* F_64[X]/(X**2+X+A**-1) with A the generator of F_64[X]  */
+static u16 __devinit gf4096_mul(u16 a, u16 b)
+{
+        u8 ah, al, bh, bl, ch, cl;
+
+        ah = a >> 6;
+        al = a & 0x3f;
+        bh = b >> 6;
+        bl = b & 0x3f;
+
+        ch = gf64_mul(ah ^ al, bh ^ bl) ^ gf64_mul(al, bl);
+        cl = gf64_mul(gf64_mul(ah, bh), 0x21) ^ gf64_mul(al, bl);
+
+        return (ch << 6) ^ cl;
+}
+
+static int __devinit cafe_mul(int x)
+{
+        if (x == 0)
+                return 1;
+        return gf4096_mul(x, 0xe01);
+}
+
 static int __devinit cafe_nand_probe(struct pci_dev *pdev,
                                      const struct pci_device_id *ent)
 {
@@ -564,6 +654,12 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
         }
         cafe->nand.buffers = (void *)cafe->dmabuf + 2112;
 
+        cafe->rs = init_rs_non_canonical(12, &cafe_mul, 0, 1, 8);
+        if (!cafe->rs) {
+                err = -ENOMEM;
+                goto out_ior;
+        }
+
         cafe->nand.cmdfunc = cafe_nand_cmdfunc;
         cafe->nand.dev_ready = cafe_device_ready;
         cafe->nand.read_byte = cafe_read_byte;
@@ -646,7 +742,7 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
                 cafe_readl(cafe, GLOBAL_CTRL), cafe_readl(cafe, GLOBAL_IRQ_MASK));
 
         /* Scan to find existence of the device */
-        if (nand_scan_ident(mtd, 1)) {
+        if (nand_scan_ident(mtd, 2)) {
                 err = -ENXIO;
                 goto out_irq;
         }
@@ -713,6 +809,7 @@ static void __devexit cafe_nand_remove(struct pci_dev *pdev)
         cafe_writel(cafe, ~1 & cafe_readl(cafe, GLOBAL_IRQ_MASK), GLOBAL_IRQ_MASK);
         free_irq(pdev->irq, mtd);
         nand_release(mtd);
+        free_rs(cafe->rs);
         pci_iounmap(pdev, cafe->mmio);
         dma_free_coherent(&cafe->pdev->dev, 2112, cafe->dmabuf, cafe->dmaaddr);
         kfree(mtd);
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 04de315e4937..7e68203fe1ba 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -303,28 +303,27 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
         struct nand_chip *chip = mtd->priv;
         u16 bad;
 
+        page = (int)(ofs >> chip->page_shift) & chip->pagemask;
+
         if (getchip) {
-                page = (int)(ofs >> chip->page_shift);
                 chipnr = (int)(ofs >> chip->chip_shift);
 
                 nand_get_device(chip, mtd, FL_READING);
 
                 /* Select the NAND device */
                 chip->select_chip(mtd, chipnr);
-        } else
-                page = (int)(ofs >> chip->page_shift);
+        }
 
         if (chip->options & NAND_BUSWIDTH_16) {
                 chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos & 0xFE,
-                              page & chip->pagemask);
+                              page);
                 bad = cpu_to_le16(chip->read_word(mtd));
                 if (chip->badblockpos & 0x1)
                         bad >>= 8;
                 if ((bad & 0xFF) != 0xff)
                         res = 1;
         } else {
-                chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos,
-                              page & chip->pagemask);
+                chip->cmdfunc(mtd, NAND_CMD_READOOB, chip->badblockpos, page);
                 if (chip->read_byte(mtd) != 0xff)
                         res = 1;
         }
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
new file mode 100644
index 000000000000..cd725fc5e813
--- /dev/null
+++ b/drivers/mtd/nand/plat_nand.c
@@ -0,0 +1,150 @@
+/*
+ * Generic NAND driver
+ *
+ * Author: Vitaly Wool <vitalywool@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/partitions.h>
+
+struct plat_nand_data {
+        struct nand_chip        chip;
+        struct mtd_info         mtd;
+        void __iomem            *io_base;
+#ifdef CONFIG_MTD_PARTITIONS
+        int                     nr_parts;
+        struct mtd_partition    *parts;
+#endif
+};
+
+/*
+ * Probe for the NAND device.
+ */
+static int __init plat_nand_probe(struct platform_device *pdev)
+{
+        struct platform_nand_data *pdata = pdev->dev.platform_data;
+        struct plat_nand_data *data;
+        int res = 0;
+
+        /* Allocate memory for the device structure (and zero it) */
+        data = kzalloc(sizeof(struct plat_nand_data), GFP_KERNEL);
+        if (!data) {
+                dev_err(&pdev->dev, "failed to allocate device structure.\n");
+                return -ENOMEM;
+        }
+
+        data->io_base = ioremap(pdev->resource[0].start,
+                                pdev->resource[0].end - pdev->resource[0].start + 1);
+        if (data->io_base == NULL) {
+                dev_err(&pdev->dev, "ioremap failed\n");
+                kfree(data);
+                return -EIO;
+        }
+
+        data->chip.priv = &data;
+        data->mtd.priv = &data->chip;
+        data->mtd.owner = THIS_MODULE;
+
+        data->chip.IO_ADDR_R = data->io_base;
+        data->chip.IO_ADDR_W = data->io_base;
+        data->chip.cmd_ctrl = pdata->ctrl.cmd_ctrl;
+        data->chip.dev_ready = pdata->ctrl.dev_ready;
+        data->chip.select_chip = pdata->ctrl.select_chip;
+        data->chip.chip_delay = pdata->chip.chip_delay;
+        data->chip.options |= pdata->chip.options;
+
+        data->chip.ecc.hwctl = pdata->ctrl.hwcontrol;
+        data->chip.ecc.layout = pdata->chip.ecclayout;
+        data->chip.ecc.mode = NAND_ECC_SOFT;
+
+        platform_set_drvdata(pdev, data);
+
+        /* Scan to find existance of the device */
+        if (nand_scan(&data->mtd, 1)) {
+                res = -ENXIO;
+                goto out;
+        }
+
+#ifdef CONFIG_MTD_PARTITIONS
+        if (pdata->chip.part_probe_types) {
+                res = parse_mtd_partitions(&data->mtd,
+                                        pdata->chip.part_probe_types,
+                                        &data->parts, 0);
+                if (res > 0) {
+                        add_mtd_partitions(&data->mtd, data->parts, res);
+                        return 0;
+                }
+        }
+        if (pdata->chip.partitions) {
+                data->parts = pdata->chip.partitions;
+                res = add_mtd_partitions(&data->mtd, data->parts,
+                        pdata->chip.nr_partitions);
+        } else
+#endif
+        res = add_mtd_device(&data->mtd);
+
+        if (!res)
+                return res;
+
+        nand_release(&data->mtd);
+out:
+        platform_set_drvdata(pdev, NULL);
+        iounmap(data->io_base);
+        kfree(data);
+        return res;
+}
+
+/*
+ * Remove a NAND device.
+ */
+static int __devexit plat_nand_remove(struct platform_device *pdev)
+{
+        struct plat_nand_data *data = platform_get_drvdata(pdev);
+        struct platform_nand_data *pdata = pdev->dev.platform_data;
+
+        nand_release(&data->mtd);
+#ifdef CONFIG_MTD_PARTITIONS
+        if (data->parts && data->parts != pdata->chip.partitions)
+                kfree(data->parts);
+#endif
+        iounmap(data->io_base);
+        kfree(data);
+
+        return 0;
+}
+
+static struct platform_driver plat_nand_driver = {
+        .probe          = plat_nand_probe,
+        .remove         = plat_nand_remove,
+        .driver         = {
+                .name   = "gen_nand",
+                .owner  = THIS_MODULE,
+        },
+};
+
+static int __init plat_nand_init(void)
+{
+        return platform_driver_register(&plat_nand_driver);
+}
+
+static void __exit plat_nand_exit(void)
+{
+        platform_driver_unregister(&plat_nand_driver);
+}
+
+module_init(plat_nand_init);
+module_exit(plat_nand_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Vitaly Wool");
+MODULE_DESCRIPTION("Simple generic NAND driver");
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 000794c6caf5..0537fac8de74 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -2192,7 +2192,7 @@ static int onenand_check_maf(int manuf)
  * @param mtd           MTD device structure
  *
  * OneNAND detection method:
- *   Compare the the values from command with ones from register
+ *   Compare the values from command with ones from register
  */
 static int onenand_probe(struct mtd_info *mtd)
 {
diff --git a/drivers/net/3c509.c b/drivers/net/3c509.c
index 9588da3a30e7..127f60841b10 100644
--- a/drivers/net/3c509.c
+++ b/drivers/net/3c509.c
@@ -95,8 +95,7 @@ static int max_interrupt_work = 10;
 #include <asm/io.h>
 #include <asm/irq.h>
 
-static char versionA[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " becker@scyld.com\n";
-static char versionB[] __initdata = "http://www.scyld.com/network/3c509.html\n";
+static char version[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " becker@scyld.com\n";
 
 #if defined(CONFIG_PM) && (defined(CONFIG_MCA) || defined(CONFIG_EISA))
 #define EL3_SUSPEND
@@ -360,7 +359,7 @@ static int __init el3_common_init(struct net_device *dev)
         printk(", IRQ %d.\n", dev->irq);
 
         if (el3_debug > 0)
-                printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB);
+                printk(KERN_INFO "%s", version);
         return 0;
 
 }
diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c
index 80924f76dee8..f26ca331615e 100644
--- a/drivers/net/3c59x.c
+++ b/drivers/net/3c59x.c
@@ -103,7 +103,7 @@ static int vortex_debug = 1;
 
 
 static char version[] __devinitdata =
-DRV_NAME ": Donald Becker and others. www.scyld.com/network/vortex.html\n";
+DRV_NAME ": Donald Becker and others.\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
 MODULE_DESCRIPTION("3Com 3c59x/3c9xx ethernet driver ");
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index b86ccd2ecd5b..fa489b10c38c 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2493,12 +2493,28 @@ config PASEMI_MAC
           This driver supports the on-chip 1/10Gbit Ethernet controller on
           PA Semi's PWRficient line of chips.
 
+config MLX4_CORE
+        tristate
+        depends on PCI
+        default n
+
+config MLX4_DEBUG
+        bool "Verbose debugging output" if (MLX4_CORE && EMBEDDED)
+        default y
+        ---help---
+          This option causes debugging code to be compiled into the
+          mlx4_core driver.  The output can be turned on via the
+          debug_level module parameter (which can also be set after
+          the driver is loaded through sysfs).
+
 endmenu
 
 source "drivers/net/tokenring/Kconfig"
 
 source "drivers/net/wireless/Kconfig"
 
+source "drivers/net/usb/Kconfig"
+
 source "drivers/net/pcmcia/Kconfig"
 
 source "drivers/net/wan/Kconfig"
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 59c0459a037c..a77affa4f6e6 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -197,6 +197,7 @@ obj-$(CONFIG_SMC911X) += smc911x.o
 obj-$(CONFIG_DM9000) += dm9000.o
 obj-$(CONFIG_FEC_8XX) += fec_8xx/
 obj-$(CONFIG_PASEMI_MAC) += pasemi_mac.o
+obj-$(CONFIG_MLX4_CORE) += mlx4/
 
 obj-$(CONFIG_MACB) += macb.o
 
@@ -206,6 +207,14 @@ obj-$(CONFIG_TR) += tokenring/
 obj-$(CONFIG_WAN) += wan/
 obj-$(CONFIG_ARCNET) += arcnet/
 obj-$(CONFIG_NET_PCMCIA) += pcmcia/
+
+obj-$(CONFIG_USB_CATC)          += usb/
+obj-$(CONFIG_USB_KAWETH)        += usb/
+obj-$(CONFIG_USB_PEGASUS)       += usb/
+obj-$(CONFIG_USB_RTL8150)       += usb/
+obj-$(CONFIG_USB_USBNET)        += usb/
+obj-$(CONFIG_USB_ZD1201)        += usb/
+
 obj-y += wireless/
 obj-$(CONFIG_NET_TULIP) += tulip/
 obj-$(CONFIG_HAMRADIO) += hamradio/
diff --git a/drivers/net/atl1/atl1_main.c b/drivers/net/atl1/atl1_main.c
index d28f88bbdd5f..78cf00ff3d38 100644
--- a/drivers/net/atl1/atl1_main.c
+++ b/drivers/net/atl1/atl1_main.c
@@ -2038,6 +2038,15 @@ static int atl1_close(struct net_device *netdev)
         return 0;
 }
 
+#ifdef CONFIG_NET_POLL_CONTROLLER
+static void atl1_poll_controller(struct net_device *netdev)
+{
+        disable_irq(netdev->irq);
+        atl1_intr(netdev->irq, netdev);
+        enable_irq(netdev->irq);
+}
+#endif
+
 /*
  * If TPD Buffer size equal to 0, PCIE DMAR_TO_INT
  * will assert. We do soft reset <0x1400=1> according
@@ -2190,6 +2199,9 @@ static int __devinit atl1_probe(struct pci_dev *pdev,
         netdev->do_ioctl = &atl1_ioctl;
         netdev->tx_timeout = &atl1_tx_timeout;
         netdev->watchdog_timeo = 5 * HZ;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+        netdev->poll_controller = atl1_poll_controller;
+#endif
         netdev->vlan_rx_register = atl1_vlan_rx_register;
         netdev->vlan_rx_add_vid = atl1_vlan_rx_add_vid;
         netdev->vlan_rx_kill_vid = atl1_vlan_rx_kill_vid;
diff --git a/drivers/net/atp.c b/drivers/net/atp.c
index 18aba838c1ff..82d78ff8399b 100644
--- a/drivers/net/atp.c
+++ b/drivers/net/atp.c
@@ -31,10 +31,8 @@
 
 */
 
-static const char versionA[] =
+static const char version[] =
 "atp.c:v1.09=ac 2002/10/01 Donald Becker <becker@scyld.com>\n";
-static const char versionB[] =
-"  http://www.scyld.com/network/atp.html\n";
 
 /* The user-configurable values.
    These may be modified when a driver module is loaded.*/
@@ -324,7 +322,7 @@ static int __init atp_probe1(long ioaddr)
 
 #ifndef MODULE
         if (net_debug)
-                printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB);
+                printk(KERN_INFO "%s", version);
 #endif
 
         printk(KERN_NOTICE "%s: Pocket adapter found at %#3lx, IRQ %d, SAPROM "
@@ -926,7 +924,7 @@ static void set_rx_mode_8012(struct net_device *dev)
 
 static int __init atp_init_module(void) {
         if (debug)                                      /* Emit version even if no cards detected. */
-                printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB);
+                printk(KERN_INFO "%s", version);
         return atp_init();
 }
 
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 724bce51f936..223517dcbcfd 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3461,7 +3461,7 @@ void bond_unregister_arp(struct bonding *bond)
 /*---------------------------- Hashing Policies -----------------------------*/
 
 /*
- * Hash for the the output device based upon layer 3 and layer 4 data. If
+ * Hash for the output device based upon layer 3 and layer 4 data. If
  * the packet is a frag or not TCP or UDP, just use layer 3 data.  If it is
  * altogether not IP, mimic bond_xmit_hash_policy_l2()
  */
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index 3a03a74c0609..637ae8f68791 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1214,7 +1214,7 @@ e1000_remove(struct pci_dev *pdev)
         int i;
 #endif
 
-        flush_scheduled_work();
+        cancel_work_sync(&adapter->reset_task);
 
         e1000_release_manageability(adapter);
 
diff --git a/drivers/net/eepro.c b/drivers/net/eepro.c
index 39654e1e2bed..47680237f783 100644
--- a/drivers/net/eepro.c
+++ b/drivers/net/eepro.c
@@ -1126,7 +1126,7 @@ static void eepro_tx_timeout (struct net_device *dev)
         printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name,
                 "network cable problem");
         /* This is not a duplicate. One message for the console,
-           one for the the log file  */
+           one for the log file  */
         printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
                 "network cable problem");
         eepro_complete_selreset(ioaddr);
diff --git a/drivers/net/eepro100.c b/drivers/net/eepro100.c
index 6c267c38df97..9800341956a2 100644
--- a/drivers/net/eepro100.c
+++ b/drivers/net/eepro100.c
@@ -28,7 +28,7 @@
 */
 
 static const char * const version =
-"eepro100.c:v1.09j-t 9/29/99 Donald Becker http://www.scyld.com/network/eepro100.html\n"
+"eepro100.c:v1.09j-t 9/29/99 Donald Becker\n"
 "eepro100.c: $Revision: 1.36 $ 2000/11/17 Modified by Andrey V. Savochkin <saw@saw.sw.com.sg> and others\n";
 
 /* A few user-configurable values that apply to all boards.
diff --git a/drivers/net/epic100.c b/drivers/net/epic100.c
index 4e3f14c9c717..5e517946f46a 100644
--- a/drivers/net/epic100.c
+++ b/drivers/net/epic100.c
@@ -93,8 +93,6 @@ static int rx_copybreak;
 static char version[] __devinitdata =
 DRV_NAME ".c:v1.11 1/7/2001 Written by Donald Becker <becker@scyld.com>\n";
 static char version2[] __devinitdata =
-"  http://www.scyld.com/network/epic100.html\n";
-static char version3[] __devinitdata =
 "  (unofficial 2.4.x kernel port, version " DRV_VERSION ", " DRV_RELDATE ")\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
@@ -323,8 +321,8 @@ static int __devinit epic_init_one (struct pci_dev *pdev,
 #ifndef MODULE
         static int printed_version;
         if (!printed_version++)
-                printk (KERN_INFO "%s" KERN_INFO "%s" KERN_INFO "%s",
-                        version, version2, version3);
+                printk (KERN_INFO "%s" KERN_INFO "%s",
+                        version, version2);
 #endif
 
         card_idx++;
@@ -1596,8 +1594,8 @@ static int __init epic_init (void)
 {
 /* when a module, this is printed whether or not devices are found in probe */
 #ifdef MODULE
-        printk (KERN_INFO "%s" KERN_INFO "%s" KERN_INFO "%s",
-                version, version2, version3);
+        printk (KERN_INFO "%s" KERN_INFO "%s",
+                version, version2);
 #endif
 
         return pci_register_driver(&epic_driver);
diff --git a/drivers/net/hamradio/Kconfig b/drivers/net/hamradio/Kconfig
index 6e90619b3b41..36d2c7d4f4d0 100644
--- a/drivers/net/hamradio/Kconfig
+++ b/drivers/net/hamradio/Kconfig
@@ -140,7 +140,7 @@ config BAYCOM_SER_HDX
           modems that connect to a serial interface. The driver supports the
           ser12 design in half-duplex mode. This is the old driver.  It is
           still provided in case your serial interface chip does not work with
-          the full-duplex driver. This driver is depreciated.  To configure
+          the full-duplex driver. This driver is deprecated.  To configure
           the driver, use the sethdlc utility available in the standard ax25
           utilities package. For information on the modems, see
           <http://www.baycom.de/> and
diff --git a/drivers/net/irda/donauboe.h b/drivers/net/irda/donauboe.h
index 2ab173d9a0e4..1e67720f1066 100644
--- a/drivers/net/irda/donauboe.h
+++ b/drivers/net/irda/donauboe.h
@@ -113,7 +113,7 @@
 /* RxOver  overflow in Recv FIFO                                */
 /* SipRcv  received serial gap  (or other condition you set)    */
 /* Interrupts are enabled by writing a one to the IER register  */
-/* Interrupts are cleared by writting a one to the ISR register */
+/* Interrupts are cleared by writing a one to the ISR register */
 /*                                                              */
 /* 6. The remaining registers: 0x6 and 0x3 appear to be         */
 /*    reserved parts of 16 or 32 bit registersthe remainder     */
diff --git a/drivers/net/ixgb/ixgb_ee.c b/drivers/net/ixgb/ixgb_ee.c
index f15aebde7b90..52c99d01d568 100644
--- a/drivers/net/ixgb/ixgb_ee.c
+++ b/drivers/net/ixgb/ixgb_ee.c
@@ -315,7 +315,7 @@ ixgb_wait_eeprom_command(struct ixgb_hw *hw)
  * hw - Struct containing variables accessed by shared code
  *
  * Reads the first 64 16 bit words of the EEPROM and sums the values read.
- * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is
+ * If the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is
  * valid.
  *
  * Returns:
diff --git a/drivers/net/meth.h b/drivers/net/meth.h
index 84960dae2a22..ea3b8fc86d1e 100644
--- a/drivers/net/meth.h
+++ b/drivers/net/meth.h
@@ -126,7 +126,7 @@ typedef struct rx_packet {
                                        /*   Note: when loopback is set this bit becomes collision control.  Setting this bit will */
                                        /*         cause a collision to be reported. */
 
-                                       /* Bits 5 and 6 are used to determine the the Destination address filter mode */
+                                       /* Bits 5 and 6 are used to determine the Destination address filter mode */
 #define METH_ACCEPT_MY 0                        /* 00: Accept PHY address only */
 #define METH_ACCEPT_MCAST 0x20  /* 01: Accept physical, broadcast, and multicast filter matches only */
 #define METH_ACCEPT_AMCAST 0x40 /* 10: Accept physical, broadcast, and all multicast packets */
diff --git a/drivers/net/mlx4/Makefile b/drivers/net/mlx4/Makefile
new file mode 100644
index 000000000000..0952a6528f58
--- /dev/null
+++ b/drivers/net/mlx4/Makefile
@@ -0,0 +1,4 @@
+obj-$(CONFIG_MLX4_CORE)         += mlx4_core.o
+
+mlx4_core-y :=  alloc.o catas.o cmd.o cq.o eq.o fw.o icm.o intf.o main.o mcg.o \
+                mr.o pd.o profile.o qp.o reset.o srq.o
diff --git a/drivers/net/mlx4/alloc.c b/drivers/net/mlx4/alloc.c
new file mode 100644
index 000000000000..9ffdb9d29da9
--- /dev/null
+++ b/drivers/net/mlx4/alloc.c
@@ -0,0 +1,179 @@
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/bitmap.h>
+
+#include "mlx4.h"
+
+u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap)
+{
+        u32 obj;
+
+        spin_lock(&bitmap->lock);
+
+        obj = find_next_zero_bit(bitmap->table, bitmap->max, bitmap->last);
+        if (obj >= bitmap->max) {
+                bitmap->top = (bitmap->top + bitmap->max) & bitmap->mask;
+                obj = find_first_zero_bit(bitmap->table, bitmap->max);
+        }
+
+        if (obj < bitmap->max) {
+                set_bit(obj, bitmap->table);
+                obj |= bitmap->top;
+                bitmap->last = obj + 1;
+        } else
+                obj = -1;
+
+        spin_unlock(&bitmap->lock);
+
+        return obj;
+}
+
+void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj)
+{
+        obj &= bitmap->max - 1;
+
+        spin_lock(&bitmap->lock);
+        clear_bit(obj, bitmap->table);
+        bitmap->last = min(bitmap->last, obj);
+        bitmap->top = (bitmap->top + bitmap->max) & bitmap->mask;
+        spin_unlock(&bitmap->lock);
+}
+
+int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask, u32 reserved)
+{
+        int i;
+
+        /* num must be a power of 2 */
+        if (num != roundup_pow_of_two(num))
+                return -EINVAL;
+
+        bitmap->last = 0;
+        bitmap->top  = 0;
+        bitmap->max  = num;
+        bitmap->mask = mask;
+        spin_lock_init(&bitmap->lock);
+        bitmap->table = kzalloc(BITS_TO_LONGS(num) * sizeof (long), GFP_KERNEL);
+        if (!bitmap->table)
+                return -ENOMEM;
+
+        for (i = 0; i < reserved; ++i)
+                set_bit(i, bitmap->table);
+
+        return 0;
+}
+
+void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap)
+{
+        kfree(bitmap->table);
+}
+
+/*
+ * Handling for queue buffers -- we allocate a bunch of memory and
+ * register it in a memory region at HCA virtual address 0.  If the
+ * requested size is > max_direct, we split the allocation into
+ * multiple pages, so we don't require too much contiguous memory.
+ */
+
+int mlx4_buf_alloc(struct mlx4_dev *dev, int size, int max_direct,
+                   struct mlx4_buf *buf)
+{
+        dma_addr_t t;
+
+        if (size <= max_direct) {
+                buf->nbufs        = 1;
+                buf->npages       = 1;
+                buf->page_shift   = get_order(size) + PAGE_SHIFT;
+                buf->u.direct.buf = dma_alloc_coherent(&dev->pdev->dev,
+                                                       size, &t, GFP_KERNEL);
+                if (!buf->u.direct.buf)
+                        return -ENOMEM;
+
+                buf->u.direct.map = t;
+
+                while (t & ((1 << buf->page_shift) - 1)) {
+                        --buf->page_shift;
+                        buf->npages *= 2;
+                }
+
+                memset(buf->u.direct.buf, 0, size);
+        } else {
+                int i;
+
+                buf->nbufs       = (size + PAGE_SIZE - 1) / PAGE_SIZE;
+                buf->npages      = buf->nbufs;
+                buf->page_shift  = PAGE_SHIFT;
+                buf->u.page_list = kzalloc(buf->nbufs * sizeof *buf->u.page_list,
+                                           GFP_KERNEL);
+                if (!buf->u.page_list)
+                        return -ENOMEM;
+
+                for (i = 0; i < buf->nbufs; ++i) {
+                        buf->u.page_list[i].buf =
+                                dma_alloc_coherent(&dev->pdev->dev, PAGE_SIZE,
+                                                   &t, GFP_KERNEL);
+                        if (!buf->u.page_list[i].buf)
+                                goto err_free;
+
+                        buf->u.page_list[i].map = t;
+
+                        memset(buf->u.page_list[i].buf, 0, PAGE_SIZE);
+                }
+        }
+
+        return 0;
+
+err_free:
+        mlx4_buf_free(dev, size, buf);
+
+        return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(mlx4_buf_alloc);
+
+void mlx4_buf_free(struct mlx4_dev *dev, int size, struct mlx4_buf *buf)
+{
+        int i;
+
+        if (buf->nbufs == 1)
+                dma_free_coherent(&dev->pdev->dev, size, buf->u.direct.buf,
+                                  buf->u.direct.map);
+        else {
+                for (i = 0; i < buf->nbufs; ++i)
+                        dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
+                                          buf->u.page_list[i].buf,
+                                          buf->u.page_list[i].map);
+                kfree(buf->u.page_list);
+        }
+}
+EXPORT_SYMBOL_GPL(mlx4_buf_free);
diff --git a/drivers/net/mlx4/catas.c b/drivers/net/mlx4/catas.c
new file mode 100644
index 000000000000..1bb088aeaf71
--- /dev/null
+++ b/drivers/net/mlx4/catas.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "mlx4.h"
+
+void mlx4_handle_catas_err(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        int i;
+
+        mlx4_err(dev, "Catastrophic error detected:\n");
+        for (i = 0; i < priv->fw.catas_size; ++i)
+                mlx4_err(dev, "  buf[%02x]: %08x\n",
+                         i, swab32(readl(priv->catas_err.map + i)));
+
+        mlx4_dispatch_event(dev, MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR, 0, 0);
+}
+
+void mlx4_map_catas_buf(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        unsigned long addr;
+
+        addr = pci_resource_start(dev->pdev, priv->fw.catas_bar) +
+                priv->fw.catas_offset;
+
+        priv->catas_err.map = ioremap(addr, priv->fw.catas_size * 4);
+        if (!priv->catas_err.map)
+                mlx4_warn(dev, "Failed to map catastrophic error buffer at 0x%lx\n",
+                          addr);
+
+}
+
+void mlx4_unmap_catas_buf(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        if (priv->catas_err.map)
+                iounmap(priv->catas_err.map);
+}
diff --git a/drivers/net/mlx4/cmd.c b/drivers/net/mlx4/cmd.c
new file mode 100644
index 000000000000..c1f81a993f5d
--- /dev/null
+++ b/drivers/net/mlx4/cmd.c
@@ -0,0 +1,429 @@
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/errno.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include <asm/io.h>
+
+#include "mlx4.h"
+
+#define CMD_POLL_TOKEN 0xffff
+
+enum {
+        /* command completed successfully: */
+        CMD_STAT_OK             = 0x00,
+        /* Internal error (such as a bus error) occurred while processing command: */
+        CMD_STAT_INTERNAL_ERR   = 0x01,
+        /* Operation/command not supported or opcode modifier not supported: */
+        CMD_STAT_BAD_OP         = 0x02,
+        /* Parameter not supported or parameter out of range: */
+        CMD_STAT_BAD_PARAM      = 0x03,
+        /* System not enabled or bad system state: */
+        CMD_STAT_BAD_SYS_STATE  = 0x04,
+        /* Attempt to access reserved or unallocaterd resource: */
+        CMD_STAT_BAD_RESOURCE   = 0x05,
+        /* Requested resource is currently executing a command, or is otherwise busy: */
+        CMD_STAT_RESOURCE_BUSY  = 0x06,
+        /* Required capability exceeds device limits: */
+        CMD_STAT_EXCEED_LIM     = 0x08,
+        /* Resource is not in the appropriate state or ownership: */
+        CMD_STAT_BAD_RES_STATE  = 0x09,
+        /* Index out of range: */
+        CMD_STAT_BAD_INDEX      = 0x0a,
+        /* FW image corrupted: */
+        CMD_STAT_BAD_NVMEM      = 0x0b,
+        /* Attempt to modify a QP/EE which is not in the presumed state: */
+        CMD_STAT_BAD_QP_STATE   = 0x10,
+        /* Bad segment parameters (Address/Size): */
+        CMD_STAT_BAD_SEG_PARAM  = 0x20,
+        /* Memory Region has Memory Windows bound to: */
+        CMD_STAT_REG_BOUND      = 0x21,
+        /* HCA local attached memory not present: */
+        CMD_STAT_LAM_NOT_PRE    = 0x22,
+        /* Bad management packet (silently discarded): */
+        CMD_STAT_BAD_PKT        = 0x30,
+        /* More outstanding CQEs in CQ than new CQ size: */
+        CMD_STAT_BAD_SIZE       = 0x40
+};
+
+enum {
+        HCR_IN_PARAM_OFFSET     = 0x00,
+        HCR_IN_MODIFIER_OFFSET  = 0x08,
+        HCR_OUT_PARAM_OFFSET    = 0x0c,
+        HCR_TOKEN_OFFSET        = 0x14,
+        HCR_STATUS_OFFSET       = 0x18,
+
+        HCR_OPMOD_SHIFT         = 12,
+        HCR_T_BIT               = 21,
+        HCR_E_BIT               = 22,
+        HCR_GO_BIT              = 23
+};
+
+enum {
+        GO_BIT_TIMEOUT          = 10000
+};
+
+struct mlx4_cmd_context {
+        struct completion       done;
+        int                     result;
+        int                     next;
+        u64                     out_param;
+        u16                     token;
+};
+
+static int mlx4_status_to_errno(u8 status) {
+        static const int trans_table[] = {
+                [CMD_STAT_INTERNAL_ERR]   = -EIO,
+                [CMD_STAT_BAD_OP]         = -EPERM,
+                [CMD_STAT_BAD_PARAM]      = -EINVAL,
+                [CMD_STAT_BAD_SYS_STATE]  = -ENXIO,
+                [CMD_STAT_BAD_RESOURCE]   = -EBADF,
+                [CMD_STAT_RESOURCE_BUSY]  = -EBUSY,
+                [CMD_STAT_EXCEED_LIM]     = -ENOMEM,
+                [CMD_STAT_BAD_RES_STATE]  = -EBADF,
+                [CMD_STAT_BAD_INDEX]      = -EBADF,
+                [CMD_STAT_BAD_NVMEM]      = -EFAULT,
+                [CMD_STAT_BAD_QP_STATE]   = -EINVAL,
+                [CMD_STAT_BAD_SEG_PARAM]  = -EFAULT,
+                [CMD_STAT_REG_BOUND]      = -EBUSY,
+                [CMD_STAT_LAM_NOT_PRE]    = -EAGAIN,
+                [CMD_STAT_BAD_PKT]        = -EINVAL,
+                [CMD_STAT_BAD_SIZE]       = -ENOMEM,
+        };
+
+        if (status >= ARRAY_SIZE(trans_table) ||
+            (status != CMD_STAT_OK && trans_table[status] == 0))
+                return -EIO;
+
+        return trans_table[status];
+}
+
+static int cmd_pending(struct mlx4_dev *dev)
+{
+        u32 status = readl(mlx4_priv(dev)->cmd.hcr + HCR_STATUS_OFFSET);
+
+        return (status & swab32(1 << HCR_GO_BIT)) ||
+                (mlx4_priv(dev)->cmd.toggle ==
+                 !!(status & swab32(1 << HCR_T_BIT)));
+}
+
+static int mlx4_cmd_post(struct mlx4_dev *dev, u64 in_param, u64 out_param,
+                         u32 in_modifier, u8 op_modifier, u16 op, u16 token,
+                         int event)
+{
+        struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
+        u32 __iomem *hcr = cmd->hcr;
+        int ret = -EAGAIN;
+        unsigned long end;
+
+        mutex_lock(&cmd->hcr_mutex);
+
+        end = jiffies;
+        if (event)
+                end += HZ * 10;
+
+        while (cmd_pending(dev)) {
+                if (time_after_eq(jiffies, end))
+                        goto out;
+                cond_resched();
+        }
+
+        /*
+         * We use writel (instead of something like memcpy_toio)
+         * because writes of less than 32 bits to the HCR don't work
+         * (and some architectures such as ia64 implement memcpy_toio
+         * in terms of writeb).
+         */
+        __raw_writel((__force u32) cpu_to_be32(in_param >> 32),           hcr + 0);
+        __raw_writel((__force u32) cpu_to_be32(in_param & 0xfffffffful),  hcr + 1);
+        __raw_writel((__force u32) cpu_to_be32(in_modifier),              hcr + 2);
+        __raw_writel((__force u32) cpu_to_be32(out_param >> 32),          hcr + 3);
+        __raw_writel((__force u32) cpu_to_be32(out_param & 0xfffffffful), hcr + 4);
+        __raw_writel((__force u32) cpu_to_be32(token << 16),              hcr + 5);
+
+        /* __raw_writel may not order writes. */
+        wmb();
+
+        __raw_writel((__force u32) cpu_to_be32((1 << HCR_GO_BIT)                |
+                                               (cmd->toggle << HCR_T_BIT)       |
+                                               (event ? (1 << HCR_E_BIT) : 0)   |
+                                               (op_modifier << HCR_OPMOD_SHIFT) |
+                                               op),                       hcr + 6);
+        cmd->toggle = cmd->toggle ^ 1;
+
+        ret = 0;
+
+out:
+        mutex_unlock(&cmd->hcr_mutex);
+        return ret;
+}
+
+static int mlx4_cmd_poll(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
+                         int out_is_imm, u32 in_modifier, u8 op_modifier,
+                         u16 op, unsigned long timeout)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        void __iomem *hcr = priv->cmd.hcr;
+        int err = 0;
+        unsigned long end;
+
+        down(&priv->cmd.poll_sem);
+
+        err = mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
+                            in_modifier, op_modifier, op, CMD_POLL_TOKEN, 0);
+        if (err)
+                goto out;
+
+        end = msecs_to_jiffies(timeout) + jiffies;
+        while (cmd_pending(dev) && time_before(jiffies, end))
+                cond_resched();
+
+        if (cmd_pending(dev)) {
+                err = -ETIMEDOUT;
+                goto out;
+        }
+
+        if (out_is_imm)
+                *out_param =
+                        (u64) be32_to_cpu((__force __be32)
+                                          __raw_readl(hcr + HCR_OUT_PARAM_OFFSET)) << 32 |
+                        (u64) be32_to_cpu((__force __be32)
+                                          __raw_readl(hcr + HCR_OUT_PARAM_OFFSET + 4));
+
+        err = mlx4_status_to_errno(be32_to_cpu((__force __be32)
+                                               __raw_readl(hcr + HCR_STATUS_OFFSET)) >> 24);
+
+out:
+        up(&priv->cmd.poll_sem);
+        return err;
+}
+
+void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_cmd_context *context =
+                &priv->cmd.context[token & priv->cmd.token_mask];
+
+        /* previously timed out command completing at long last */
+        if (token != context->token)
+                return;
+
+        context->result    = mlx4_status_to_errno(status);
+        context->out_param = out_param;
+
+        context->token += priv->cmd.token_mask + 1;
+
+        complete(&context->done);
+}
+
+static int mlx4_cmd_wait(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
+                         int out_is_imm, u32 in_modifier, u8 op_modifier,
+                         u16 op, unsigned long timeout)
+{
+        struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
+        struct mlx4_cmd_context *context;
+        int err = 0;
+
+        down(&cmd->event_sem);
+
+        spin_lock(&cmd->context_lock);
+        BUG_ON(cmd->free_head < 0);
+        context = &cmd->context[cmd->free_head];
+        cmd->free_head = context->next;
+        spin_unlock(&cmd->context_lock);
+
+        init_completion(&context->done);
+
+        mlx4_cmd_post(dev, in_param, out_param ? *out_param : 0,
+                      in_modifier, op_modifier, op, context->token, 1);
+
+        if (!wait_for_completion_timeout(&context->done, msecs_to_jiffies(timeout))) {
+                err = -EBUSY;
+                goto out;
+        }
+
+        err = context->result;
+        if (err)
+                goto out;
+
+        if (out_is_imm)
+                *out_param = context->out_param;
+
+out:
+        spin_lock(&cmd->context_lock);
+        context->next = cmd->free_head;
+        cmd->free_head = context - cmd->context;
+        spin_unlock(&cmd->context_lock);
+
+        up(&cmd->event_sem);
+        return err;
+}
+
+int __mlx4_cmd(struct mlx4_dev *dev, u64 in_param, u64 *out_param,
+               int out_is_imm, u32 in_modifier, u8 op_modifier,
+               u16 op, unsigned long timeout)
+{
+        if (mlx4_priv(dev)->cmd.use_events)
+                return mlx4_cmd_wait(dev, in_param, out_param, out_is_imm,
+                                     in_modifier, op_modifier, op, timeout);
+        else
+                return mlx4_cmd_poll(dev, in_param, out_param, out_is_imm,
+                                     in_modifier, op_modifier, op, timeout);
+}
+EXPORT_SYMBOL_GPL(__mlx4_cmd);
+
+int mlx4_cmd_init(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        mutex_init(&priv->cmd.hcr_mutex);
+        sema_init(&priv->cmd.poll_sem, 1);
+        priv->cmd.use_events = 0;
+        priv->cmd.toggle     = 1;
+
+        priv->cmd.hcr = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_HCR_BASE,
+                                MLX4_HCR_SIZE);
+        if (!priv->cmd.hcr) {
+                mlx4_err(dev, "Couldn't map command register.");
+                return -ENOMEM;
+        }
+
+        priv->cmd.pool = pci_pool_create("mlx4_cmd", dev->pdev,
+                                         MLX4_MAILBOX_SIZE,
+                                         MLX4_MAILBOX_SIZE, 0);
+        if (!priv->cmd.pool) {
+                iounmap(priv->cmd.hcr);
+                return -ENOMEM;
+        }
+
+        return 0;
+}
+
+void mlx4_cmd_cleanup(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        pci_pool_destroy(priv->cmd.pool);
+        iounmap(priv->cmd.hcr);
+}
+
+/*
+ * Switch to using events to issue FW commands (can only be called
+ * after event queue for command events has been initialized).
+ */
+int mlx4_cmd_use_events(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int i;
+
+        priv->cmd.context = kmalloc(priv->cmd.max_cmds *
+                                   sizeof (struct mlx4_cmd_context),
+                                   GFP_KERNEL);
+        if (!priv->cmd.context)
+                return -ENOMEM;
+
+        for (i = 0; i < priv->cmd.max_cmds; ++i) {
+                priv->cmd.context[i].token = i;
+                priv->cmd.context[i].next  = i + 1;
+        }
+
+        priv->cmd.context[priv->cmd.max_cmds - 1].next = -1;
+        priv->cmd.free_head = 0;
+
+        sema_init(&priv->cmd.event_sem, priv->cmd.max_cmds);
+        spin_lock_init(&priv->cmd.context_lock);
+
+        for (priv->cmd.token_mask = 1;
+             priv->cmd.token_mask < priv->cmd.max_cmds;
+             priv->cmd.token_mask <<= 1)
+                ; /* nothing */
+        --priv->cmd.token_mask;
+
+        priv->cmd.use_events = 1;
+
+        down(&priv->cmd.poll_sem);
+
+        return 0;
+}
+
+/*
+ * Switch back to polling (used when shutting down the device)
+ */
+void mlx4_cmd_use_polling(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int i;
+
+        priv->cmd.use_events = 0;
+
+        for (i = 0; i < priv->cmd.max_cmds; ++i)
+                down(&priv->cmd.event_sem);
+
+        kfree(priv->cmd.context);
+
+        up(&priv->cmd.poll_sem);
+}
+
+struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+
+        mailbox = kmalloc(sizeof *mailbox, GFP_KERNEL);
+        if (!mailbox)
+                return ERR_PTR(-ENOMEM);
+
+        mailbox->buf = pci_pool_alloc(mlx4_priv(dev)->cmd.pool, GFP_KERNEL,
+                                      &mailbox->dma);
+        if (!mailbox->buf) {
+                kfree(mailbox);
+                return ERR_PTR(-ENOMEM);
+        }
+
+        return mailbox;
+}
+EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox);
+
+void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox)
+{
+        if (!mailbox)
+                return;
+
+        pci_pool_free(mlx4_priv(dev)->cmd.pool, mailbox->buf, mailbox->dma);
+        kfree(mailbox);
+}
+EXPORT_SYMBOL_GPL(mlx4_free_cmd_mailbox);
diff --git a/drivers/net/mlx4/cq.c b/drivers/net/mlx4/cq.c
new file mode 100644
index 000000000000..437d78ad0912
--- /dev/null
+++ b/drivers/net/mlx4/cq.c
@@ -0,0 +1,254 @@
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+#include <linux/hardirq.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+struct mlx4_cq_context {
+        __be32                  flags;
+        u16                     reserved1[3];
+        __be16                  page_offset;
+        __be32                  logsize_usrpage;
+        u8                      reserved2;
+        u8                      cq_period;
+        u8                      reserved3;
+        u8                      cq_max_count;
+        u8                      reserved4[3];
+        u8                      comp_eqn;
+        u8                      log_page_size;
+        u8                      reserved5[2];
+        u8                      mtt_base_addr_h;
+        __be32                  mtt_base_addr_l;
+        __be32                  last_notified_index;
+        __be32                  solicit_producer_index;
+        __be32                  consumer_index;
+        __be32                  producer_index;
+        u8                      reserved6[2];
+        __be64                  db_rec_addr;
+};
+
+#define MLX4_CQ_STATUS_OK               ( 0 << 28)
+#define MLX4_CQ_STATUS_OVERFLOW         ( 9 << 28)
+#define MLX4_CQ_STATUS_WRITE_FAIL       (10 << 28)
+#define MLX4_CQ_FLAG_CC                 ( 1 << 18)
+#define MLX4_CQ_FLAG_OI                 ( 1 << 17)
+#define MLX4_CQ_STATE_ARMED             ( 9 <<  8)
+#define MLX4_CQ_STATE_ARMED_SOL         ( 6 <<  8)
+#define MLX4_EQ_STATE_FIRED             (10 <<  8)
+
+void mlx4_cq_completion(struct mlx4_dev *dev, u32 cqn)
+{
+        struct mlx4_cq *cq;
+
+        cq = radix_tree_lookup(&mlx4_priv(dev)->cq_table.tree,
+                               cqn & (dev->caps.num_cqs - 1));
+        if (!cq) {
+                mlx4_warn(dev, "Completion event for bogus CQ %08x\n", cqn);
+                return;
+        }
+
+        ++cq->arm_sn;
+
+        cq->comp(cq);
+}
+
+void mlx4_cq_event(struct mlx4_dev *dev, u32 cqn, int event_type)
+{
+        struct mlx4_cq_table *cq_table = &mlx4_priv(dev)->cq_table;
+        struct mlx4_cq *cq;
+
+        spin_lock(&cq_table->lock);
+
+        cq = radix_tree_lookup(&cq_table->tree, cqn & (dev->caps.num_cqs - 1));
+        if (cq)
+                atomic_inc(&cq->refcount);
+
+        spin_unlock(&cq_table->lock);
+
+        if (!cq) {
+                mlx4_warn(dev, "Async event for bogus CQ %08x\n", cqn);
+                return;
+        }
+
+        cq->event(cq, event_type);
+
+        if (atomic_dec_and_test(&cq->refcount))
+                complete(&cq->free);
+}
+
+static int mlx4_SW2HW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                         int cq_num)
+{
+        return mlx4_cmd(dev, mailbox->dma, cq_num, 0, MLX4_CMD_SW2HW_CQ,
+                        MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_HW2SW_CQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                         int cq_num)
+{
+        return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, cq_num,
+                            mailbox ? 0 : 1, MLX4_CMD_HW2SW_CQ,
+                            MLX4_CMD_TIME_CLASS_A);
+}
+
+int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, struct mlx4_mtt *mtt,
+                  struct mlx4_uar *uar, u64 db_rec, struct mlx4_cq *cq)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_cq_table *cq_table = &priv->cq_table;
+        struct mlx4_cmd_mailbox *mailbox;
+        struct mlx4_cq_context *cq_context;
+        u64 mtt_addr;
+        int err;
+
+        cq->cqn = mlx4_bitmap_alloc(&cq_table->bitmap);
+        if (cq->cqn == -1)
+                return -ENOMEM;
+
+        err = mlx4_table_get(dev, &cq_table->table, cq->cqn);
+        if (err)
+                goto err_out;
+
+        err = mlx4_table_get(dev, &cq_table->cmpt_table, cq->cqn);
+        if (err)
+                goto err_put;
+
+        spin_lock_irq(&cq_table->lock);
+        err = radix_tree_insert(&cq_table->tree, cq->cqn, cq);
+        spin_unlock_irq(&cq_table->lock);
+        if (err)
+                goto err_cmpt_put;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox)) {
+                err = PTR_ERR(mailbox);
+                goto err_radix;
+        }
+
+        cq_context = mailbox->buf;
+        memset(cq_context, 0, sizeof *cq_context);
+
+        cq_context->logsize_usrpage = cpu_to_be32((ilog2(nent) << 24) | uar->index);
+        cq_context->comp_eqn        = priv->eq_table.eq[MLX4_EQ_COMP].eqn;
+        cq_context->log_page_size   = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
+
+        mtt_addr = mlx4_mtt_addr(dev, mtt);
+        cq_context->mtt_base_addr_h = mtt_addr >> 32;
+        cq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
+        cq_context->db_rec_addr     = cpu_to_be64(db_rec);
+
+        err = mlx4_SW2HW_CQ(dev, mailbox, cq->cqn);
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        if (err)
+                goto err_radix;
+
+        cq->cons_index = 0;
+        cq->arm_sn     = 1;
+        cq->uar        = uar;
+        atomic_set(&cq->refcount, 1);
+        init_completion(&cq->free);
+
+        return 0;
+
+err_radix:
+        spin_lock_irq(&cq_table->lock);
+        radix_tree_delete(&cq_table->tree, cq->cqn);
+        spin_unlock_irq(&cq_table->lock);
+
+err_cmpt_put:
+        mlx4_table_put(dev, &cq_table->cmpt_table, cq->cqn);
+
+err_put:
+        mlx4_table_put(dev, &cq_table->table, cq->cqn);
+
+err_out:
+        mlx4_bitmap_free(&cq_table->bitmap, cq->cqn);
+
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_cq_alloc);
+
+void mlx4_cq_free(struct mlx4_dev *dev, struct mlx4_cq *cq)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_cq_table *cq_table = &priv->cq_table;
+        int err;
+
+        err = mlx4_HW2SW_CQ(dev, NULL, cq->cqn);
+        if (err)
+                mlx4_warn(dev, "HW2SW_CQ failed (%d) for CQN %06x\n", err, cq->cqn);
+
+        synchronize_irq(priv->eq_table.eq[MLX4_EQ_COMP].irq);
+
+        spin_lock_irq(&cq_table->lock);
+        radix_tree_delete(&cq_table->tree, cq->cqn);
+        spin_unlock_irq(&cq_table->lock);
+
+        if (atomic_dec_and_test(&cq->refcount))
+                complete(&cq->free);
+        wait_for_completion(&cq->free);
+
+        mlx4_table_put(dev, &cq_table->table, cq->cqn);
+        mlx4_bitmap_free(&cq_table->bitmap, cq->cqn);
+}
+EXPORT_SYMBOL_GPL(mlx4_cq_free);
+
+int __devinit mlx4_init_cq_table(struct mlx4_dev *dev)
+{
+        struct mlx4_cq_table *cq_table = &mlx4_priv(dev)->cq_table;
+        int err;
+
+        spin_lock_init(&cq_table->lock);
+        INIT_RADIX_TREE(&cq_table->tree, GFP_ATOMIC);
+
+        err = mlx4_bitmap_init(&cq_table->bitmap, dev->caps.num_cqs,
+                               dev->caps.num_cqs - 1, dev->caps.reserved_cqs);
+        if (err)
+                return err;
+
+        return 0;
+}
+
+void mlx4_cleanup_cq_table(struct mlx4_dev *dev)
+{
+        /* Nothing to do to clean up radix_tree */
+        mlx4_bitmap_cleanup(&mlx4_priv(dev)->cq_table.bitmap);
+}
diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c
new file mode 100644
index 000000000000..acf1c801a1b8
--- /dev/null
+++ b/drivers/net/mlx4/eq.c
@@ -0,0 +1,696 @@
+/*
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+#include <linux/interrupt.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+#include "fw.h"
+
+enum {
+        MLX4_NUM_ASYNC_EQE      = 0x100,
+        MLX4_NUM_SPARE_EQE      = 0x80,
+        MLX4_EQ_ENTRY_SIZE      = 0x20
+};
+
+/*
+ * Must be packed because start is 64 bits but only aligned to 32 bits.
+ */
+struct mlx4_eq_context {
+        __be32                  flags;
+        u16                     reserved1[3];
+        __be16                  page_offset;
+        u8                      log_eq_size;
+        u8                      reserved2[4];
+        u8                      eq_period;
+        u8                      reserved3;
+        u8                      eq_max_count;
+        u8                      reserved4[3];
+        u8                      intr;
+        u8                      log_page_size;
+        u8                      reserved5[2];
+        u8                      mtt_base_addr_h;
+        __be32                  mtt_base_addr_l;
+        u32                     reserved6[2];
+        __be32                  consumer_index;
+        __be32                  producer_index;
+        u32                     reserved7[4];
+};
+
+#define MLX4_EQ_STATUS_OK          ( 0 << 28)
+#define MLX4_EQ_STATUS_WRITE_FAIL  (10 << 28)
+#define MLX4_EQ_OWNER_SW           ( 0 << 24)
+#define MLX4_EQ_OWNER_HW           ( 1 << 24)
+#define MLX4_EQ_FLAG_EC            ( 1 << 18)
+#define MLX4_EQ_FLAG_OI            ( 1 << 17)
+#define MLX4_EQ_STATE_ARMED        ( 9 <<  8)
+#define MLX4_EQ_STATE_FIRED        (10 <<  8)
+#define MLX4_EQ_STATE_ALWAYS_ARMED (11 <<  8)
+
+#define MLX4_ASYNC_EVENT_MASK ((1ull << MLX4_EVENT_TYPE_PATH_MIG)           | \
+                               (1ull << MLX4_EVENT_TYPE_COMM_EST)           | \
+                               (1ull << MLX4_EVENT_TYPE_SQ_DRAINED)         | \
+                               (1ull << MLX4_EVENT_TYPE_CQ_ERROR)           | \
+                               (1ull << MLX4_EVENT_TYPE_WQ_CATAS_ERROR)     | \
+                               (1ull << MLX4_EVENT_TYPE_EEC_CATAS_ERROR)    | \
+                               (1ull << MLX4_EVENT_TYPE_PATH_MIG_FAILED)    | \
+                               (1ull << MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR) | \
+                               (1ull << MLX4_EVENT_TYPE_WQ_ACCESS_ERROR)    | \
+                               (1ull << MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR)  | \
+                               (1ull << MLX4_EVENT_TYPE_PORT_CHANGE)        | \
+                               (1ull << MLX4_EVENT_TYPE_ECC_DETECT)         | \
+                               (1ull << MLX4_EVENT_TYPE_SRQ_CATAS_ERROR)    | \
+                               (1ull << MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE)    | \
+                               (1ull << MLX4_EVENT_TYPE_SRQ_LIMIT)          | \
+                               (1ull << MLX4_EVENT_TYPE_CMD))
+#define MLX4_CATAS_EVENT_MASK  (1ull << MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR)
+
+struct mlx4_eqe {
+        u8                      reserved1;
+        u8                      type;
+        u8                      reserved2;
+        u8                      subtype;
+        union {
+                u32             raw[6];
+                struct {
+                        __be32  cqn;
+                } __attribute__((packed)) comp;
+                struct {
+                        u16     reserved1;
+                        __be16  token;
+                        u32     reserved2;
+                        u8      reserved3[3];
+                        u8      status;
+                        __be64  out_param;
+                } __attribute__((packed)) cmd;
+                struct {
+                        __be32  qpn;
+                } __attribute__((packed)) qp;
+                struct {
+                        __be32  srqn;
+                } __attribute__((packed)) srq;
+                struct {
+                        __be32  cqn;
+                        u32     reserved1;
+                        u8      reserved2[3];
+                        u8      syndrome;
+                } __attribute__((packed)) cq_err;
+                struct {
+                        u32     reserved1[2];
+                        __be32  port;
+                } __attribute__((packed)) port_change;
+        }                       event;
+        u8                      reserved3[3];
+        u8                      owner;
+} __attribute__((packed));
+
+static void eq_set_ci(struct mlx4_eq *eq, int req_not)
+{
+        __raw_writel((__force u32) cpu_to_be32((eq->cons_index & 0xffffff) |
+                                               req_not << 31),
+                     eq->doorbell);
+        /* We still want ordering, just not swabbing, so add a barrier */
+        mb();
+}
+
+static struct mlx4_eqe *get_eqe(struct mlx4_eq *eq, u32 entry)
+{
+        unsigned long off = (entry & (eq->nent - 1)) * MLX4_EQ_ENTRY_SIZE;
+        return eq->page_list[off / PAGE_SIZE].buf + off % PAGE_SIZE;
+}
+
+static struct mlx4_eqe *next_eqe_sw(struct mlx4_eq *eq)
+{
+        struct mlx4_eqe *eqe = get_eqe(eq, eq->cons_index);
+        return !!(eqe->owner & 0x80) ^ !!(eq->cons_index & eq->nent) ? NULL : eqe;
+}
+
+static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
+{
+        struct mlx4_eqe *eqe;
+        int cqn;
+        int eqes_found = 0;
+        int set_ci = 0;
+
+        while ((eqe = next_eqe_sw(eq))) {
+                /*
+                 * Make sure we read EQ entry contents after we've
+                 * checked the ownership bit.
+                 */
+                rmb();
+
+                switch (eqe->type) {
+                case MLX4_EVENT_TYPE_COMP:
+                        cqn = be32_to_cpu(eqe->event.comp.cqn) & 0xffffff;
+                        mlx4_cq_completion(dev, cqn);
+                        break;
+
+                case MLX4_EVENT_TYPE_PATH_MIG:
+                case MLX4_EVENT_TYPE_COMM_EST:
+                case MLX4_EVENT_TYPE_SQ_DRAINED:
+                case MLX4_EVENT_TYPE_SRQ_QP_LAST_WQE:
+                case MLX4_EVENT_TYPE_WQ_CATAS_ERROR:
+                case MLX4_EVENT_TYPE_PATH_MIG_FAILED:
+                case MLX4_EVENT_TYPE_WQ_INVAL_REQ_ERROR:
+                case MLX4_EVENT_TYPE_WQ_ACCESS_ERROR:
+                        mlx4_qp_event(dev, be32_to_cpu(eqe->event.qp.qpn) & 0xffffff,
+                                      eqe->type);
+                        break;
+
+                case MLX4_EVENT_TYPE_SRQ_LIMIT:
+                case MLX4_EVENT_TYPE_SRQ_CATAS_ERROR:
+                        mlx4_srq_event(dev, be32_to_cpu(eqe->event.srq.srqn) & 0xffffff,
+                                      eqe->type);
+                        break;
+
+                case MLX4_EVENT_TYPE_CMD:
+                        mlx4_cmd_event(dev,
+                                       be16_to_cpu(eqe->event.cmd.token),
+                                       eqe->event.cmd.status,
+                                       be64_to_cpu(eqe->event.cmd.out_param));
+                        break;
+
+                case MLX4_EVENT_TYPE_PORT_CHANGE:
+                        mlx4_dispatch_event(dev, eqe->type, eqe->subtype,
+                                            be32_to_cpu(eqe->event.port_change.port) >> 28);
+                        break;
+
+                case MLX4_EVENT_TYPE_CQ_ERROR:
+                        mlx4_warn(dev, "CQ %s on CQN %06x\n",
+                                  eqe->event.cq_err.syndrome == 1 ?
+                                  "overrun" : "access violation",
+                                  be32_to_cpu(eqe->event.cq_err.cqn) & 0xffffff);
+                        mlx4_cq_event(dev, be32_to_cpu(eqe->event.cq_err.cqn),
+                                      eqe->type);
+                        break;
+
+                case MLX4_EVENT_TYPE_EQ_OVERFLOW:
+                        mlx4_warn(dev, "EQ overrun on EQN %d\n", eq->eqn);
+                        break;
+
+                case MLX4_EVENT_TYPE_EEC_CATAS_ERROR:
+                case MLX4_EVENT_TYPE_ECC_DETECT:
+                default:
+                        mlx4_warn(dev, "Unhandled event %02x(%02x) on EQ %d at index %u\n",
+                                  eqe->type, eqe->subtype, eq->eqn, eq->cons_index);
+                        break;
+                };
+
+                ++eq->cons_index;
+                eqes_found = 1;
+                ++set_ci;
+
+                /*
+                 * The HCA will think the queue has overflowed if we
+                 * don't tell it we've been processing events.  We
+                 * create our EQs with MLX4_NUM_SPARE_EQE extra
+                 * entries, so we must update our consumer index at
+                 * least that often.
+                 */
+                if (unlikely(set_ci >= MLX4_NUM_SPARE_EQE)) {
+                        /*
+                         * Conditional on hca_type is OK here because
+                         * this is a rare case, not the fast path.
+                         */
+                        eq_set_ci(eq, 0);
+                        set_ci = 0;
+                }
+        }
+
+        eq_set_ci(eq, 1);
+
+        return eqes_found;
+}
+
+static irqreturn_t mlx4_interrupt(int irq, void *dev_ptr)
+{
+        struct mlx4_dev *dev = dev_ptr;
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int work = 0;
+        int i;
+
+        writel(priv->eq_table.clr_mask, priv->eq_table.clr_int);
+
+        for (i = 0; i < MLX4_EQ_CATAS; ++i)
+                work |= mlx4_eq_int(dev, &priv->eq_table.eq[i]);
+
+        return IRQ_RETVAL(work);
+}
+
+static irqreturn_t mlx4_msi_x_interrupt(int irq, void *eq_ptr)
+{
+        struct mlx4_eq  *eq  = eq_ptr;
+        struct mlx4_dev *dev = eq->dev;
+
+        mlx4_eq_int(dev, eq);
+
+        /* MSI-X vectors always belong to us */
+        return IRQ_HANDLED;
+}
+
+static irqreturn_t mlx4_catas_interrupt(int irq, void *dev_ptr)
+{
+        mlx4_handle_catas_err(dev_ptr);
+
+        /* MSI-X vectors always belong to us */
+        return IRQ_HANDLED;
+}
+
+static int mlx4_MAP_EQ(struct mlx4_dev *dev, u64 event_mask, int unmap,
+                        int eq_num)
+{
+        return mlx4_cmd(dev, event_mask, (unmap << 31) | eq_num,
+                        0, MLX4_CMD_MAP_EQ, MLX4_CMD_TIME_CLASS_B);
+}
+
+static int mlx4_SW2HW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                         int eq_num)
+{
+        return mlx4_cmd(dev, mailbox->dma, eq_num, 0, MLX4_CMD_SW2HW_EQ,
+                        MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_HW2SW_EQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                         int eq_num)
+{
+        return mlx4_cmd_box(dev, 0, mailbox->dma, eq_num, 0, MLX4_CMD_HW2SW_EQ,
+                            MLX4_CMD_TIME_CLASS_A);
+}
+
+static void __devinit __iomem *mlx4_get_eq_uar(struct mlx4_dev *dev,
+                                               struct mlx4_eq *eq)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int index;
+
+        index = eq->eqn / 4 - dev->caps.reserved_eqs / 4;
+
+        if (!priv->eq_table.uar_map[index]) {
+                priv->eq_table.uar_map[index] =
+                        ioremap(pci_resource_start(dev->pdev, 2) +
+                                ((eq->eqn / 4) << PAGE_SHIFT),
+                                PAGE_SIZE);
+                if (!priv->eq_table.uar_map[index]) {
+                        mlx4_err(dev, "Couldn't map EQ doorbell for EQN 0x%06x\n",
+                                 eq->eqn);
+                        return NULL;
+                }
+        }
+
+        return priv->eq_table.uar_map[index] + 0x800 + 8 * (eq->eqn % 4);
+}
+
+static int __devinit mlx4_create_eq(struct mlx4_dev *dev, int nent,
+                                    u8 intr, struct mlx4_eq *eq)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_cmd_mailbox *mailbox;
+        struct mlx4_eq_context *eq_context;
+        int npages;
+        u64 *dma_list = NULL;
+        dma_addr_t t;
+        u64 mtt_addr;
+        int err = -ENOMEM;
+        int i;
+
+        eq->dev   = dev;
+        eq->nent  = roundup_pow_of_two(max(nent, 2));
+        npages = PAGE_ALIGN(eq->nent * MLX4_EQ_ENTRY_SIZE) / PAGE_SIZE;
+
+        eq->page_list = kmalloc(npages * sizeof *eq->page_list,
+                                GFP_KERNEL);
+        if (!eq->page_list)
+                goto err_out;
+
+        for (i = 0; i < npages; ++i)
+                eq->page_list[i].buf = NULL;
+
+        dma_list = kmalloc(npages * sizeof *dma_list, GFP_KERNEL);
+        if (!dma_list)
+                goto err_out_free;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                goto err_out_free;
+        eq_context = mailbox->buf;
+
+        for (i = 0; i < npages; ++i) {
+                eq->page_list[i].buf = dma_alloc_coherent(&dev->pdev->dev,
+                                                          PAGE_SIZE, &t, GFP_KERNEL);
+                if (!eq->page_list[i].buf)
+                        goto err_out_free_pages;
+
+                dma_list[i] = t;
+                eq->page_list[i].map = t;
+
+                memset(eq->page_list[i].buf, 0, PAGE_SIZE);
+        }
+
+        eq->eqn = mlx4_bitmap_alloc(&priv->eq_table.bitmap);
+        if (eq->eqn == -1)
+                goto err_out_free_pages;
+
+        eq->doorbell = mlx4_get_eq_uar(dev, eq);
+        if (!eq->doorbell) {
+                err = -ENOMEM;
+                goto err_out_free_eq;
+        }
+
+        err = mlx4_mtt_init(dev, npages, PAGE_SHIFT, &eq->mtt);
+        if (err)
+                goto err_out_free_eq;
+
+        err = mlx4_write_mtt(dev, &eq->mtt, 0, npages, dma_list);
+        if (err)
+                goto err_out_free_mtt;
+
+        memset(eq_context, 0, sizeof *eq_context);
+        eq_context->flags         = cpu_to_be32(MLX4_EQ_STATUS_OK   |
+                                                MLX4_EQ_STATE_ARMED);
+        eq_context->log_eq_size   = ilog2(eq->nent);
+        eq_context->intr          = intr;
+        eq_context->log_page_size = PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT;
+
+        mtt_addr = mlx4_mtt_addr(dev, &eq->mtt);
+        eq_context->mtt_base_addr_h = mtt_addr >> 32;
+        eq_context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
+
+        err = mlx4_SW2HW_EQ(dev, mailbox, eq->eqn);
+        if (err) {
+                mlx4_warn(dev, "SW2HW_EQ failed (%d)\n", err);
+                goto err_out_free_mtt;
+        }
+
+        kfree(dma_list);
+        mlx4_free_cmd_mailbox(dev, mailbox);
+
+        eq->cons_index = 0;
+
+        return err;
+
+err_out_free_mtt:
+        mlx4_mtt_cleanup(dev, &eq->mtt);
+
+err_out_free_eq:
+        mlx4_bitmap_free(&priv->eq_table.bitmap, eq->eqn);
+
+err_out_free_pages:
+        for (i = 0; i < npages; ++i)
+                if (eq->page_list[i].buf)
+                        dma_free_coherent(&dev->pdev->dev, PAGE_SIZE,
+                                          eq->page_list[i].buf,
+                                          eq->page_list[i].map);
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+
+err_out_free:
+        kfree(eq->page_list);
+        kfree(dma_list);
+
+err_out:
+        return err;
+}
+
+static void mlx4_free_eq(struct mlx4_dev *dev,
+                         struct mlx4_eq *eq)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_cmd_mailbox *mailbox;
+        int err;
+        int npages = PAGE_ALIGN(MLX4_EQ_ENTRY_SIZE * eq->nent) / PAGE_SIZE;
+        int i;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return;
+
+        err = mlx4_HW2SW_EQ(dev, mailbox, eq->eqn);
+        if (err)
+                mlx4_warn(dev, "HW2SW_EQ failed (%d)\n", err);
+
+        if (0) {
+                mlx4_dbg(dev, "Dumping EQ context %02x:\n", eq->eqn);
+                for (i = 0; i < sizeof (struct mlx4_eq_context) / 4; ++i) {
+                        if (i % 4 == 0)
+                                printk("[%02x] ", i * 4);
+                        printk(" %08x", be32_to_cpup(mailbox->buf + i * 4));
+                        if ((i + 1) % 4 == 0)
+                                printk("\n");
+                }
+        }
+
+        mlx4_mtt_cleanup(dev, &eq->mtt);
+        for (i = 0; i < npages; ++i)
+                pci_free_consistent(dev->pdev, PAGE_SIZE,
+                                    eq->page_list[i].buf,
+                                    eq->page_list[i].map);
+
+        kfree(eq->page_list);
+        mlx4_bitmap_free(&priv->eq_table.bitmap, eq->eqn);
+        mlx4_free_cmd_mailbox(dev, mailbox);
+}
+
+static void mlx4_free_irqs(struct mlx4_dev *dev)
+{
+        struct mlx4_eq_table *eq_table = &mlx4_priv(dev)->eq_table;
+        int i;
+
+        if (eq_table->have_irq)
+                free_irq(dev->pdev->irq, dev);
+        for (i = 0; i < MLX4_NUM_EQ; ++i)
+                if (eq_table->eq[i].have_irq)
+                        free_irq(eq_table->eq[i].irq, eq_table->eq + i);
+}
+
+static int __devinit mlx4_map_clr_int(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        priv->clr_base = ioremap(pci_resource_start(dev->pdev, priv->fw.clr_int_bar) +
+                                 priv->fw.clr_int_base, MLX4_CLR_INT_SIZE);
+        if (!priv->clr_base) {
+                mlx4_err(dev, "Couldn't map interrupt clear register, aborting.\n");
+                return -ENOMEM;
+        }
+
+        return 0;
+}
+
+static void mlx4_unmap_clr_int(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        iounmap(priv->clr_base);
+}
+
+int __devinit mlx4_map_eq_icm(struct mlx4_dev *dev, u64 icm_virt)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int ret;
+
+        /*
+         * We assume that mapping one page is enough for the whole EQ
+         * context table.  This is fine with all current HCAs, because
+         * we only use 32 EQs and each EQ uses 64 bytes of context
+         * memory, or 1 KB total.
+         */
+        priv->eq_table.icm_virt = icm_virt;
+        priv->eq_table.icm_page = alloc_page(GFP_HIGHUSER);
+        if (!priv->eq_table.icm_page)
+                return -ENOMEM;
+        priv->eq_table.icm_dma  = pci_map_page(dev->pdev, priv->eq_table.icm_page, 0,
+                                               PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+        if (pci_dma_mapping_error(priv->eq_table.icm_dma)) {
+                __free_page(priv->eq_table.icm_page);
+                return -ENOMEM;
+        }
+
+        ret = mlx4_MAP_ICM_page(dev, priv->eq_table.icm_dma, icm_virt);
+        if (ret) {
+                pci_unmap_page(dev->pdev, priv->eq_table.icm_dma, PAGE_SIZE,
+                               PCI_DMA_BIDIRECTIONAL);
+                __free_page(priv->eq_table.icm_page);
+        }
+
+        return ret;
+}
+
+void mlx4_unmap_eq_icm(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        mlx4_UNMAP_ICM(dev, priv->eq_table.icm_virt, 1);
+        pci_unmap_page(dev->pdev, priv->eq_table.icm_dma, PAGE_SIZE,
+                       PCI_DMA_BIDIRECTIONAL);
+        __free_page(priv->eq_table.icm_page);
+}
+
+int __devinit mlx4_init_eq_table(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int err;
+        int i;
+
+        err = mlx4_bitmap_init(&priv->eq_table.bitmap, dev->caps.num_eqs,
+                               dev->caps.num_eqs - 1, dev->caps.reserved_eqs);
+        if (err)
+                return err;
+
+        for (i = 0; i < ARRAY_SIZE(priv->eq_table.uar_map); ++i)
+                priv->eq_table.uar_map[i] = NULL;
+
+        err = mlx4_map_clr_int(dev);
+        if (err)
+                goto err_out_free;
+
+        priv->eq_table.clr_mask =
+                swab32(1 << (priv->eq_table.inta_pin & 31));
+        priv->eq_table.clr_int  = priv->clr_base +
+                (priv->eq_table.inta_pin < 32 ? 4 : 0);
+
+        err = mlx4_create_eq(dev, dev->caps.num_cqs + MLX4_NUM_SPARE_EQE,
+                             (dev->flags & MLX4_FLAG_MSI_X) ? MLX4_EQ_COMP : 0,
+                             &priv->eq_table.eq[MLX4_EQ_COMP]);
+        if (err)
+                goto err_out_unmap;
+
+        err = mlx4_create_eq(dev, MLX4_NUM_ASYNC_EQE + MLX4_NUM_SPARE_EQE,
+                             (dev->flags & MLX4_FLAG_MSI_X) ? MLX4_EQ_ASYNC : 0,
+                             &priv->eq_table.eq[MLX4_EQ_ASYNC]);
+        if (err)
+                goto err_out_comp;
+
+        if (dev->flags & MLX4_FLAG_MSI_X) {
+                static const char *eq_name[] = {
+                        [MLX4_EQ_COMP]  = DRV_NAME " (comp)",
+                        [MLX4_EQ_ASYNC] = DRV_NAME " (async)",
+                        [MLX4_EQ_CATAS] = DRV_NAME " (catas)"
+                };
+
+                err = mlx4_create_eq(dev, 1, MLX4_EQ_CATAS,
+                                     &priv->eq_table.eq[MLX4_EQ_CATAS]);
+                if (err)
+                        goto err_out_async;
+
+                for (i = 0; i < MLX4_EQ_CATAS; ++i) {
+                        err = request_irq(priv->eq_table.eq[i].irq,
+                                          mlx4_msi_x_interrupt,
+                                          0, eq_name[i], priv->eq_table.eq + i);
+                        if (err)
+                                goto err_out_catas;
+
+                        priv->eq_table.eq[i].have_irq = 1;
+                }
+
+                err = request_irq(priv->eq_table.eq[MLX4_EQ_CATAS].irq,
+                                  mlx4_catas_interrupt, 0,
+                                  eq_name[MLX4_EQ_CATAS], dev);
+                if (err)
+                        goto err_out_catas;
+
+                priv->eq_table.eq[MLX4_EQ_CATAS].have_irq = 1;
+        } else {
+                err = request_irq(dev->pdev->irq, mlx4_interrupt,
+                                  SA_SHIRQ, DRV_NAME, dev);
+                if (err)
+                        goto err_out_async;
+
+                priv->eq_table.have_irq = 1;
+        }
+
+        err = mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 0,
+                          priv->eq_table.eq[MLX4_EQ_ASYNC].eqn);
+        if (err)
+                mlx4_warn(dev, "MAP_EQ for async EQ %d failed (%d)\n",
+                           priv->eq_table.eq[MLX4_EQ_ASYNC].eqn, err);
+
+        for (i = 0; i < MLX4_EQ_CATAS; ++i)
+                eq_set_ci(&priv->eq_table.eq[i], 1);
+
+        if (dev->flags & MLX4_FLAG_MSI_X) {
+                err = mlx4_MAP_EQ(dev, MLX4_CATAS_EVENT_MASK, 0,
+                                  priv->eq_table.eq[MLX4_EQ_CATAS].eqn);
+                if (err)
+                        mlx4_warn(dev, "MAP_EQ for catas EQ %d failed (%d)\n",
+                                  priv->eq_table.eq[MLX4_EQ_CATAS].eqn, err);
+        }
+
+        return 0;
+
+err_out_catas:
+        mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_CATAS]);
+
+err_out_async:
+        mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_ASYNC]);
+
+err_out_comp:
+        mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_COMP]);
+
+err_out_unmap:
+        mlx4_unmap_clr_int(dev);
+        mlx4_free_irqs(dev);
+
+err_out_free:
+        mlx4_bitmap_cleanup(&priv->eq_table.bitmap);
+        return err;
+}
+
+void mlx4_cleanup_eq_table(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int i;
+
+        if (dev->flags & MLX4_FLAG_MSI_X)
+                mlx4_MAP_EQ(dev, MLX4_CATAS_EVENT_MASK, 1,
+                            priv->eq_table.eq[MLX4_EQ_CATAS].eqn);
+
+        mlx4_MAP_EQ(dev, MLX4_ASYNC_EVENT_MASK, 1,
+                    priv->eq_table.eq[MLX4_EQ_ASYNC].eqn);
+
+        mlx4_free_irqs(dev);
+
+        for (i = 0; i < MLX4_EQ_CATAS; ++i)
+                mlx4_free_eq(dev, &priv->eq_table.eq[i]);
+        if (dev->flags & MLX4_FLAG_MSI_X)
+                mlx4_free_eq(dev, &priv->eq_table.eq[MLX4_EQ_CATAS]);
+
+        mlx4_unmap_clr_int(dev);
+
+        for (i = 0; i < ARRAY_SIZE(priv->eq_table.uar_map); ++i)
+                if (priv->eq_table.uar_map[i])
+                        iounmap(priv->eq_table.uar_map[i]);
+
+        mlx4_bitmap_cleanup(&priv->eq_table.bitmap);
+}
diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c
new file mode 100644
index 000000000000..c42717313663
--- /dev/null
+++ b/drivers/net/mlx4/fw.c
@@ -0,0 +1,775 @@
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/mlx4/cmd.h>
+
+#include "fw.h"
+#include "icm.h"
+
+extern void __buggy_use_of_MLX4_GET(void);
+extern void __buggy_use_of_MLX4_PUT(void);
+
+#define MLX4_GET(dest, source, offset)                                \
+        do {                                                          \
+                void *__p = (char *) (source) + (offset);             \
+                switch (sizeof (dest)) {                              \
+                case 1: (dest) = *(u8 *) __p;       break;            \
+                case 2: (dest) = be16_to_cpup(__p); break;            \
+                case 4: (dest) = be32_to_cpup(__p); break;            \
+                case 8: (dest) = be64_to_cpup(__p); break;            \
+                default: __buggy_use_of_MLX4_GET();                   \
+                }                                                     \
+        } while (0)
+
+#define MLX4_PUT(dest, source, offset)                                \
+        do {                                                          \
+                void *__d = ((char *) (dest) + (offset));             \
+                switch (sizeof(source)) {                             \
+                case 1: *(u8 *) __d = (source);                break; \
+                case 2: *(__be16 *) __d = cpu_to_be16(source); break; \
+                case 4: *(__be32 *) __d = cpu_to_be32(source); break; \
+                case 8: *(__be64 *) __d = cpu_to_be64(source); break; \
+                default: __buggy_use_of_MLX4_PUT();                   \
+                }                                                     \
+        } while (0)
+
+static void dump_dev_cap_flags(struct mlx4_dev *dev, u32 flags)
+{
+        static const char *fname[] = {
+                [ 0] = "RC transport",
+                [ 1] = "UC transport",
+                [ 2] = "UD transport",
+                [ 3] = "SRC transport",
+                [ 4] = "reliable multicast",
+                [ 5] = "FCoIB support",
+                [ 6] = "SRQ support",
+                [ 7] = "IPoIB checksum offload",
+                [ 8] = "P_Key violation counter",
+                [ 9] = "Q_Key violation counter",
+                [10] = "VMM",
+                [16] = "MW support",
+                [17] = "APM support",
+                [18] = "Atomic ops support",
+                [19] = "Raw multicast support",
+                [20] = "Address vector port checking support",
+                [21] = "UD multicast support",
+                [24] = "Demand paging support",
+                [25] = "Router support"
+        };
+        int i;
+
+        mlx4_dbg(dev, "DEV_CAP flags:\n");
+        for (i = 0; i < 32; ++i)
+                if (fname[i] && (flags & (1 << i)))
+                        mlx4_dbg(dev, "    %s\n", fname[i]);
+}
+
+int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        u32 *outbox;
+        u8 field;
+        u16 size;
+        u16 stat_rate;
+        int err;
+
+#define QUERY_DEV_CAP_OUT_SIZE                 0x100
+#define QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET         0x10
+#define QUERY_DEV_CAP_MAX_QP_SZ_OFFSET          0x11
+#define QUERY_DEV_CAP_RSVD_QP_OFFSET            0x12
+#define QUERY_DEV_CAP_MAX_QP_OFFSET             0x13
+#define QUERY_DEV_CAP_RSVD_SRQ_OFFSET           0x14
+#define QUERY_DEV_CAP_MAX_SRQ_OFFSET            0x15
+#define QUERY_DEV_CAP_RSVD_EEC_OFFSET           0x16
+#define QUERY_DEV_CAP_MAX_EEC_OFFSET            0x17
+#define QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET          0x19
+#define QUERY_DEV_CAP_RSVD_CQ_OFFSET            0x1a
+#define QUERY_DEV_CAP_MAX_CQ_OFFSET             0x1b
+#define QUERY_DEV_CAP_MAX_MPT_OFFSET            0x1d
+#define QUERY_DEV_CAP_RSVD_EQ_OFFSET            0x1e
+#define QUERY_DEV_CAP_MAX_EQ_OFFSET             0x1f
+#define QUERY_DEV_CAP_RSVD_MTT_OFFSET           0x20
+#define QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET         0x21
+#define QUERY_DEV_CAP_RSVD_MRW_OFFSET           0x22
+#define QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET        0x23
+#define QUERY_DEV_CAP_MAX_AV_OFFSET             0x27
+#define QUERY_DEV_CAP_MAX_REQ_QP_OFFSET         0x29
+#define QUERY_DEV_CAP_MAX_RES_QP_OFFSET         0x2b
+#define QUERY_DEV_CAP_MAX_RDMA_OFFSET           0x2f
+#define QUERY_DEV_CAP_RSZ_SRQ_OFFSET            0x33
+#define QUERY_DEV_CAP_ACK_DELAY_OFFSET          0x35
+#define QUERY_DEV_CAP_MTU_WIDTH_OFFSET          0x36
+#define QUERY_DEV_CAP_VL_PORT_OFFSET            0x37
+#define QUERY_DEV_CAP_MAX_GID_OFFSET            0x3b
+#define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET       0x3c
+#define QUERY_DEV_CAP_MAX_PKEY_OFFSET           0x3f
+#define QUERY_DEV_CAP_FLAGS_OFFSET              0x44
+#define QUERY_DEV_CAP_RSVD_UAR_OFFSET           0x48
+#define QUERY_DEV_CAP_UAR_SZ_OFFSET             0x49
+#define QUERY_DEV_CAP_PAGE_SZ_OFFSET            0x4b
+#define QUERY_DEV_CAP_BF_OFFSET                 0x4c
+#define QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET      0x4d
+#define QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET   0x4e
+#define QUERY_DEV_CAP_LOG_MAX_BF_PAGES_OFFSET   0x4f
+#define QUERY_DEV_CAP_MAX_SG_SQ_OFFSET          0x51
+#define QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET     0x52
+#define QUERY_DEV_CAP_MAX_SG_RQ_OFFSET          0x55
+#define QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET     0x56
+#define QUERY_DEV_CAP_MAX_QP_MCG_OFFSET         0x61
+#define QUERY_DEV_CAP_RSVD_MCG_OFFSET           0x62
+#define QUERY_DEV_CAP_MAX_MCG_OFFSET            0x63
+#define QUERY_DEV_CAP_RSVD_PD_OFFSET            0x64
+#define QUERY_DEV_CAP_MAX_PD_OFFSET             0x65
+#define QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET    0x80
+#define QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET       0x82
+#define QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET       0x84
+#define QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET      0x86
+#define QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET       0x88
+#define QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET       0x8a
+#define QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET       0x8c
+#define QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET     0x8e
+#define QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET       0x90
+#define QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET     0x92
+#define QUERY_DEV_CAP_BMME_FLAGS_OFFSET         0x97
+#define QUERY_DEV_CAP_RSVD_LKEY_OFFSET          0x98
+#define QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET         0xa0
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        outbox = mailbox->buf;
+
+        err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
+                           MLX4_CMD_TIME_CLASS_A);
+
+        if (err)
+                goto out;
+
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_QP_OFFSET);
+        dev_cap->reserved_qps = 1 << (field & 0xf);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_OFFSET);
+        dev_cap->max_qps = 1 << (field & 0x1f);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_SRQ_OFFSET);
+        dev_cap->reserved_srqs = 1 << (field >> 4);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_OFFSET);
+        dev_cap->max_srqs = 1 << (field & 0x1f);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_SZ_OFFSET);
+        dev_cap->max_cq_sz = 1 << field;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_CQ_OFFSET);
+        dev_cap->reserved_cqs = 1 << (field & 0xf);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_CQ_OFFSET);
+        dev_cap->max_cqs = 1 << (field & 0x1f);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MPT_OFFSET);
+        dev_cap->max_mpts = 1 << (field & 0x3f);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_EQ_OFFSET);
+        dev_cap->reserved_eqs = 1 << (field & 0xf);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_EQ_OFFSET);
+        dev_cap->max_eqs = 1 << (field & 0x7);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MTT_OFFSET);
+        dev_cap->reserved_mtts = 1 << (field >> 4);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MRW_SZ_OFFSET);
+        dev_cap->max_mrw_sz = 1 << field;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MRW_OFFSET);
+        dev_cap->reserved_mrws = 1 << (field & 0xf);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MTT_SEG_OFFSET);
+        dev_cap->max_mtt_seg = 1 << (field & 0x3f);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_REQ_QP_OFFSET);
+        dev_cap->max_requester_per_qp = 1 << (field & 0x3f);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RES_QP_OFFSET);
+        dev_cap->max_responder_per_qp = 1 << (field & 0x3f);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_RDMA_OFFSET);
+        dev_cap->max_rdma_global = 1 << (field & 0x3f);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_ACK_DELAY_OFFSET);
+        dev_cap->local_ca_ack_delay = field & 0x1f;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MTU_WIDTH_OFFSET);
+        dev_cap->max_mtu        = field >> 4;
+        dev_cap->max_port_width = field & 0xf;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
+        dev_cap->max_vl    = field >> 4;
+        dev_cap->num_ports = field & 0xf;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_GID_OFFSET);
+        dev_cap->max_gids = 1 << (field & 0xf);
+        MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);
+        dev_cap->stat_rate_support = stat_rate;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PKEY_OFFSET);
+        dev_cap->max_pkeys = 1 << (field & 0xf);
+        MLX4_GET(dev_cap->flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_UAR_OFFSET);
+        dev_cap->reserved_uars = field >> 4;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_UAR_SZ_OFFSET);
+        dev_cap->uar_size = 1 << ((field & 0x3f) + 20);
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_PAGE_SZ_OFFSET);
+        dev_cap->min_page_sz = 1 << field;
+
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_BF_OFFSET);
+        if (field & 0x80) {
+                MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_BF_REG_SZ_OFFSET);
+                dev_cap->bf_reg_size = 1 << (field & 0x1f);
+                MLX4_GET(field, outbox, QUERY_DEV_CAP_LOG_MAX_BF_REGS_PER_PAGE_OFFSET);
+                dev_cap->bf_regs_per_page = 1 << (field & 0x3f);
+                mlx4_dbg(dev, "BlueFlame available (reg size %d, regs/page %d)\n",
+                         dev_cap->bf_reg_size, dev_cap->bf_regs_per_page);
+        } else {
+                dev_cap->bf_reg_size = 0;
+                mlx4_dbg(dev, "BlueFlame not available\n");
+        }
+
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_SQ_OFFSET);
+        dev_cap->max_sq_sg = field;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_SQ_OFFSET);
+        dev_cap->max_sq_desc_sz = size;
+
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_MCG_OFFSET);
+        dev_cap->max_qp_per_mcg = 1 << field;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_MCG_OFFSET);
+        dev_cap->reserved_mgms = field & 0xf;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MCG_OFFSET);
+        dev_cap->max_mcgs = 1 << field;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSVD_PD_OFFSET);
+        dev_cap->reserved_pds = field >> 4;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_PD_OFFSET);
+        dev_cap->max_pds = 1 << (field & 0x3f);
+
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_RDMARC_ENTRY_SZ_OFFSET);
+        dev_cap->rdmarc_entry_sz = size;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_QPC_ENTRY_SZ_OFFSET);
+        dev_cap->qpc_entry_sz = size;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_AUX_ENTRY_SZ_OFFSET);
+        dev_cap->aux_entry_sz = size;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_ALTC_ENTRY_SZ_OFFSET);
+        dev_cap->altc_entry_sz = size;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_EQC_ENTRY_SZ_OFFSET);
+        dev_cap->eqc_entry_sz = size;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_CQC_ENTRY_SZ_OFFSET);
+        dev_cap->cqc_entry_sz = size;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_SRQ_ENTRY_SZ_OFFSET);
+        dev_cap->srq_entry_sz = size;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_C_MPT_ENTRY_SZ_OFFSET);
+        dev_cap->cmpt_entry_sz = size;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_MTT_ENTRY_SZ_OFFSET);
+        dev_cap->mtt_entry_sz = size;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_D_MPT_ENTRY_SZ_OFFSET);
+        dev_cap->dmpt_entry_sz = size;
+
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SRQ_SZ_OFFSET);
+        dev_cap->max_srq_sz = 1 << field;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_QP_SZ_OFFSET);
+        dev_cap->max_qp_sz = 1 << field;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_RSZ_SRQ_OFFSET);
+        dev_cap->resize_srq = field & 1;
+        MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_SG_RQ_OFFSET);
+        dev_cap->max_rq_sg = field;
+        MLX4_GET(size, outbox, QUERY_DEV_CAP_MAX_DESC_SZ_RQ_OFFSET);
+        dev_cap->max_rq_desc_sz = size;
+
+        MLX4_GET(dev_cap->bmme_flags, outbox,
+                 QUERY_DEV_CAP_BMME_FLAGS_OFFSET);
+        MLX4_GET(dev_cap->reserved_lkey, outbox,
+                 QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
+        MLX4_GET(dev_cap->max_icm_sz, outbox,
+                 QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
+
+        if (dev_cap->bmme_flags & 1)
+                mlx4_dbg(dev, "Base MM extensions: yes "
+                         "(flags %d, rsvd L_Key %08x)\n",
+                         dev_cap->bmme_flags, dev_cap->reserved_lkey);
+        else
+                mlx4_dbg(dev, "Base MM extensions: no\n");
+
+        /*
+         * Each UAR has 4 EQ doorbells; so if a UAR is reserved, then
+         * we can't use any EQs whose doorbell falls on that page,
+         * even if the EQ itself isn't reserved.
+         */
+        dev_cap->reserved_eqs = max(dev_cap->reserved_uars * 4,
+                                    dev_cap->reserved_eqs);
+
+        mlx4_dbg(dev, "Max ICM size %lld MB\n",
+                 (unsigned long long) dev_cap->max_icm_sz >> 20);
+        mlx4_dbg(dev, "Max QPs: %d, reserved QPs: %d, entry size: %d\n",
+                 dev_cap->max_qps, dev_cap->reserved_qps, dev_cap->qpc_entry_sz);
+        mlx4_dbg(dev, "Max SRQs: %d, reserved SRQs: %d, entry size: %d\n",
+                 dev_cap->max_srqs, dev_cap->reserved_srqs, dev_cap->srq_entry_sz);
+        mlx4_dbg(dev, "Max CQs: %d, reserved CQs: %d, entry size: %d\n",
+                 dev_cap->max_cqs, dev_cap->reserved_cqs, dev_cap->cqc_entry_sz);
+        mlx4_dbg(dev, "Max EQs: %d, reserved EQs: %d, entry size: %d\n",
+                 dev_cap->max_eqs, dev_cap->reserved_eqs, dev_cap->eqc_entry_sz);
+        mlx4_dbg(dev, "reserved MPTs: %d, reserved MTTs: %d\n",
+                 dev_cap->reserved_mrws, dev_cap->reserved_mtts);
+        mlx4_dbg(dev, "Max PDs: %d, reserved PDs: %d, reserved UARs: %d\n",
+                 dev_cap->max_pds, dev_cap->reserved_pds, dev_cap->reserved_uars);
+        mlx4_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
+                 dev_cap->max_pds, dev_cap->reserved_mgms);
+        mlx4_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
+                 dev_cap->max_cq_sz, dev_cap->max_qp_sz, dev_cap->max_srq_sz);
+        mlx4_dbg(dev, "Local CA ACK delay: %d, max MTU: %d, port width cap: %d\n",
+                 dev_cap->local_ca_ack_delay, 128 << dev_cap->max_mtu,
+                 dev_cap->max_port_width);
+        mlx4_dbg(dev, "Max SQ desc size: %d, max SQ S/G: %d\n",
+                 dev_cap->max_sq_desc_sz, dev_cap->max_sq_sg);
+        mlx4_dbg(dev, "Max RQ desc size: %d, max RQ S/G: %d\n",
+                 dev_cap->max_rq_desc_sz, dev_cap->max_rq_sg);
+
+        dump_dev_cap_flags(dev, dev_cap->flags);
+
+out:
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        return err;
+}
+
+int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        struct mlx4_icm_iter iter;
+        __be64 *pages;
+        int lg;
+        int nent = 0;
+        int i;
+        int err = 0;
+        int ts = 0, tc = 0;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE);
+        pages = mailbox->buf;
+
+        for (mlx4_icm_first(icm, &iter);
+             !mlx4_icm_last(&iter);
+             mlx4_icm_next(&iter)) {
+                /*
+                 * We have to pass pages that are aligned to their
+                 * size, so find the least significant 1 in the
+                 * address or size and use that as our log2 size.
+                 */
+                lg = ffs(mlx4_icm_addr(&iter) | mlx4_icm_size(&iter)) - 1;
+                if (lg < MLX4_ICM_PAGE_SHIFT) {
+                        mlx4_warn(dev, "Got FW area not aligned to %d (%llx/%lx).\n",
+                                   MLX4_ICM_PAGE_SIZE,
+                                   (unsigned long long) mlx4_icm_addr(&iter),
+                                   mlx4_icm_size(&iter));
+                        err = -EINVAL;
+                        goto out;
+                }
+
+                for (i = 0; i < mlx4_icm_size(&iter) >> lg; ++i) {
+                        if (virt != -1) {
+                                pages[nent * 2] = cpu_to_be64(virt);
+                                virt += 1 << lg;
+                        }
+
+                        pages[nent * 2 + 1] =
+                                cpu_to_be64((mlx4_icm_addr(&iter) + (i << lg)) |
+                                            (lg - MLX4_ICM_PAGE_SHIFT));
+                        ts += 1 << (lg - 10);
+                        ++tc;
+
+                        if (++nent == MLX4_MAILBOX_SIZE / 16) {
+                                err = mlx4_cmd(dev, mailbox->dma, nent, 0, op,
+                                                MLX4_CMD_TIME_CLASS_B);
+                                if (err)
+                                        goto out;
+                                nent = 0;
+                        }
+                }
+        }
+
+        if (nent)
+                err = mlx4_cmd(dev, mailbox->dma, nent, 0, op, MLX4_CMD_TIME_CLASS_B);
+        if (err)
+                goto out;
+
+        switch (op) {
+        case MLX4_CMD_MAP_FA:
+                mlx4_dbg(dev, "Mapped %d chunks/%d KB for FW.\n", tc, ts);
+                break;
+        case MLX4_CMD_MAP_ICM_AUX:
+                mlx4_dbg(dev, "Mapped %d chunks/%d KB for ICM aux.\n", tc, ts);
+                break;
+        case MLX4_CMD_MAP_ICM:
+                mlx4_dbg(dev, "Mapped %d chunks/%d KB at %llx for ICM.\n",
+                          tc, ts, (unsigned long long) virt - (ts << 10));
+                break;
+        }
+
+out:
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        return err;
+}
+
+int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm)
+{
+        return mlx4_map_cmd(dev, MLX4_CMD_MAP_FA, icm, -1);
+}
+
+int mlx4_UNMAP_FA(struct mlx4_dev *dev)
+{
+        return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_FA, MLX4_CMD_TIME_CLASS_B);
+}
+
+
+int mlx4_RUN_FW(struct mlx4_dev *dev)
+{
+        return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_RUN_FW, MLX4_CMD_TIME_CLASS_A);
+}
+
+int mlx4_QUERY_FW(struct mlx4_dev *dev)
+{
+        struct mlx4_fw  *fw  = &mlx4_priv(dev)->fw;
+        struct mlx4_cmd *cmd = &mlx4_priv(dev)->cmd;
+        struct mlx4_cmd_mailbox *mailbox;
+        u32 *outbox;
+        int err = 0;
+        u64 fw_ver;
+        u8 lg;
+
+#define QUERY_FW_OUT_SIZE             0x100
+#define QUERY_FW_VER_OFFSET            0x00
+#define QUERY_FW_MAX_CMD_OFFSET        0x0f
+#define QUERY_FW_ERR_START_OFFSET      0x30
+#define QUERY_FW_ERR_SIZE_OFFSET       0x38
+#define QUERY_FW_ERR_BAR_OFFSET        0x3c
+
+#define QUERY_FW_SIZE_OFFSET           0x00
+#define QUERY_FW_CLR_INT_BASE_OFFSET   0x20
+#define QUERY_FW_CLR_INT_BAR_OFFSET    0x28
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        outbox = mailbox->buf;
+
+        err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
+                            MLX4_CMD_TIME_CLASS_A);
+        if (err)
+                goto out;
+
+        MLX4_GET(fw_ver, outbox, QUERY_FW_VER_OFFSET);
+        /*
+         * FW subminor version is at more signifant bits than minor
+         * version, so swap here.
+         */
+        dev->caps.fw_ver = (fw_ver & 0xffff00000000ull) |
+                ((fw_ver & 0xffff0000ull) >> 16) |
+                ((fw_ver & 0x0000ffffull) << 16);
+
+        MLX4_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
+        cmd->max_cmds = 1 << lg;
+
+        mlx4_dbg(dev, "FW version %d.%d.%03d, max commands %d\n",
+                 (int) (dev->caps.fw_ver >> 32),
+                 (int) (dev->caps.fw_ver >> 16) & 0xffff,
+                 (int) dev->caps.fw_ver & 0xffff,
+                 cmd->max_cmds);
+
+        MLX4_GET(fw->catas_offset, outbox, QUERY_FW_ERR_START_OFFSET);
+        MLX4_GET(fw->catas_size,   outbox, QUERY_FW_ERR_SIZE_OFFSET);
+        MLX4_GET(fw->catas_bar,    outbox, QUERY_FW_ERR_BAR_OFFSET);
+        fw->catas_bar = (fw->catas_bar >> 6) * 2;
+
+        mlx4_dbg(dev, "Catastrophic error buffer at 0x%llx, size 0x%x, BAR %d\n",
+                 (unsigned long long) fw->catas_offset, fw->catas_size, fw->catas_bar);
+
+        MLX4_GET(fw->fw_pages,     outbox, QUERY_FW_SIZE_OFFSET);
+        MLX4_GET(fw->clr_int_base, outbox, QUERY_FW_CLR_INT_BASE_OFFSET);
+        MLX4_GET(fw->clr_int_bar,  outbox, QUERY_FW_CLR_INT_BAR_OFFSET);
+        fw->clr_int_bar = (fw->clr_int_bar >> 6) * 2;
+
+        mlx4_dbg(dev, "FW size %d KB\n", fw->fw_pages >> 2);
+
+        /*
+         * Round up number of system pages needed in case
+         * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
+         */
+        fw->fw_pages =
+                ALIGN(fw->fw_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
+                (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
+
+        mlx4_dbg(dev, "Clear int @ %llx, BAR %d\n",
+                 (unsigned long long) fw->clr_int_base, fw->clr_int_bar);
+
+out:
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        return err;
+}
+
+static void get_board_id(void *vsd, char *board_id)
+{
+        int i;
+
+#define VSD_OFFSET_SIG1         0x00
+#define VSD_OFFSET_SIG2         0xde
+#define VSD_OFFSET_MLX_BOARD_ID 0xd0
+#define VSD_OFFSET_TS_BOARD_ID  0x20
+
+#define VSD_SIGNATURE_TOPSPIN   0x5ad
+
+        memset(board_id, 0, MLX4_BOARD_ID_LEN);
+
+        if (be16_to_cpup(vsd + VSD_OFFSET_SIG1) == VSD_SIGNATURE_TOPSPIN &&
+            be16_to_cpup(vsd + VSD_OFFSET_SIG2) == VSD_SIGNATURE_TOPSPIN) {
+                strlcpy(board_id, vsd + VSD_OFFSET_TS_BOARD_ID, MLX4_BOARD_ID_LEN);
+        } else {
+                /*
+                 * The board ID is a string but the firmware byte
+                 * swaps each 4-byte word before passing it back to
+                 * us.  Therefore we need to swab it before printing.
+                 */
+                for (i = 0; i < 4; ++i)
+                        ((u32 *) board_id)[i] =
+                                swab32(*(u32 *) (vsd + VSD_OFFSET_MLX_BOARD_ID + i * 4));
+        }
+}
+
+int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        u32 *outbox;
+        int err;
+
+#define QUERY_ADAPTER_OUT_SIZE             0x100
+#define QUERY_ADAPTER_VENDOR_ID_OFFSET     0x00
+#define QUERY_ADAPTER_DEVICE_ID_OFFSET     0x04
+#define QUERY_ADAPTER_REVISION_ID_OFFSET   0x08
+#define QUERY_ADAPTER_INTA_PIN_OFFSET      0x10
+#define QUERY_ADAPTER_VSD_OFFSET           0x20
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        outbox = mailbox->buf;
+
+        err = mlx4_cmd_box(dev, 0, mailbox->dma, 0, 0, MLX4_CMD_QUERY_ADAPTER,
+                           MLX4_CMD_TIME_CLASS_A);
+        if (err)
+                goto out;
+
+        MLX4_GET(adapter->vendor_id, outbox,   QUERY_ADAPTER_VENDOR_ID_OFFSET);
+        MLX4_GET(adapter->device_id, outbox,   QUERY_ADAPTER_DEVICE_ID_OFFSET);
+        MLX4_GET(adapter->revision_id, outbox, QUERY_ADAPTER_REVISION_ID_OFFSET);
+        MLX4_GET(adapter->inta_pin, outbox,    QUERY_ADAPTER_INTA_PIN_OFFSET);
+
+        get_board_id(outbox + QUERY_ADAPTER_VSD_OFFSET / 4,
+                     adapter->board_id);
+
+out:
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        return err;
+}
+
+int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        __be32 *inbox;
+        int err;
+
+#define INIT_HCA_IN_SIZE                 0x200
+#define INIT_HCA_VERSION_OFFSET          0x000
+#define  INIT_HCA_VERSION                2
+#define INIT_HCA_FLAGS_OFFSET            0x014
+#define INIT_HCA_QPC_OFFSET              0x020
+#define  INIT_HCA_QPC_BASE_OFFSET        (INIT_HCA_QPC_OFFSET + 0x10)
+#define  INIT_HCA_LOG_QP_OFFSET          (INIT_HCA_QPC_OFFSET + 0x17)
+#define  INIT_HCA_SRQC_BASE_OFFSET       (INIT_HCA_QPC_OFFSET + 0x28)
+#define  INIT_HCA_LOG_SRQ_OFFSET         (INIT_HCA_QPC_OFFSET + 0x2f)
+#define  INIT_HCA_CQC_BASE_OFFSET        (INIT_HCA_QPC_OFFSET + 0x30)
+#define  INIT_HCA_LOG_CQ_OFFSET          (INIT_HCA_QPC_OFFSET + 0x37)
+#define  INIT_HCA_ALTC_BASE_OFFSET       (INIT_HCA_QPC_OFFSET + 0x40)
+#define  INIT_HCA_AUXC_BASE_OFFSET       (INIT_HCA_QPC_OFFSET + 0x50)
+#define  INIT_HCA_EQC_BASE_OFFSET        (INIT_HCA_QPC_OFFSET + 0x60)
+#define  INIT_HCA_LOG_EQ_OFFSET          (INIT_HCA_QPC_OFFSET + 0x67)
+#define  INIT_HCA_RDMARC_BASE_OFFSET     (INIT_HCA_QPC_OFFSET + 0x70)
+#define  INIT_HCA_LOG_RD_OFFSET          (INIT_HCA_QPC_OFFSET + 0x77)
+#define INIT_HCA_MCAST_OFFSET            0x0c0
+#define  INIT_HCA_MC_BASE_OFFSET         (INIT_HCA_MCAST_OFFSET + 0x00)
+#define  INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x12)
+#define  INIT_HCA_LOG_MC_HASH_SZ_OFFSET  (INIT_HCA_MCAST_OFFSET + 0x16)
+#define  INIT_HCA_LOG_MC_TABLE_SZ_OFFSET (INIT_HCA_MCAST_OFFSET + 0x1b)
+#define INIT_HCA_TPT_OFFSET              0x0f0
+#define  INIT_HCA_DMPT_BASE_OFFSET       (INIT_HCA_TPT_OFFSET + 0x00)
+#define  INIT_HCA_LOG_MPT_SZ_OFFSET      (INIT_HCA_TPT_OFFSET + 0x0b)
+#define  INIT_HCA_MTT_BASE_OFFSET        (INIT_HCA_TPT_OFFSET + 0x10)
+#define  INIT_HCA_CMPT_BASE_OFFSET       (INIT_HCA_TPT_OFFSET + 0x18)
+#define INIT_HCA_UAR_OFFSET              0x120
+#define  INIT_HCA_LOG_UAR_SZ_OFFSET      (INIT_HCA_UAR_OFFSET + 0x0a)
+#define  INIT_HCA_UAR_PAGE_SZ_OFFSET     (INIT_HCA_UAR_OFFSET + 0x0b)
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        inbox = mailbox->buf;
+
+        memset(inbox, 0, INIT_HCA_IN_SIZE);
+
+        *((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
+
+#if defined(__LITTLE_ENDIAN)
+        *(inbox + INIT_HCA_FLAGS_OFFSET / 4) &= ~cpu_to_be32(1 << 1);
+#elif defined(__BIG_ENDIAN)
+        *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1 << 1);
+#else
+#error Host endianness not defined
+#endif
+        /* Check port for UD address vector: */
+        *(inbox + INIT_HCA_FLAGS_OFFSET / 4) |= cpu_to_be32(1);
+
+        /* QPC/EEC/CQC/EQC/RDMARC attributes */
+
+        MLX4_PUT(inbox, param->qpc_base,      INIT_HCA_QPC_BASE_OFFSET);
+        MLX4_PUT(inbox, param->log_num_qps,   INIT_HCA_LOG_QP_OFFSET);
+        MLX4_PUT(inbox, param->srqc_base,     INIT_HCA_SRQC_BASE_OFFSET);
+        MLX4_PUT(inbox, param->log_num_srqs,  INIT_HCA_LOG_SRQ_OFFSET);
+        MLX4_PUT(inbox, param->cqc_base,      INIT_HCA_CQC_BASE_OFFSET);
+        MLX4_PUT(inbox, param->log_num_cqs,   INIT_HCA_LOG_CQ_OFFSET);
+        MLX4_PUT(inbox, param->altc_base,     INIT_HCA_ALTC_BASE_OFFSET);
+        MLX4_PUT(inbox, param->auxc_base,     INIT_HCA_AUXC_BASE_OFFSET);
+        MLX4_PUT(inbox, param->eqc_base,      INIT_HCA_EQC_BASE_OFFSET);
+        MLX4_PUT(inbox, param->log_num_eqs,   INIT_HCA_LOG_EQ_OFFSET);
+        MLX4_PUT(inbox, param->rdmarc_base,   INIT_HCA_RDMARC_BASE_OFFSET);
+        MLX4_PUT(inbox, param->log_rd_per_qp, INIT_HCA_LOG_RD_OFFSET);
+
+        /* multicast attributes */
+
+        MLX4_PUT(inbox, param->mc_base,         INIT_HCA_MC_BASE_OFFSET);
+        MLX4_PUT(inbox, param->log_mc_entry_sz, INIT_HCA_LOG_MC_ENTRY_SZ_OFFSET);
+        MLX4_PUT(inbox, param->log_mc_hash_sz,  INIT_HCA_LOG_MC_HASH_SZ_OFFSET);
+        MLX4_PUT(inbox, param->log_mc_table_sz, INIT_HCA_LOG_MC_TABLE_SZ_OFFSET);
+
+        /* TPT attributes */
+
+        MLX4_PUT(inbox, param->dmpt_base,  INIT_HCA_DMPT_BASE_OFFSET);
+        MLX4_PUT(inbox, param->log_mpt_sz, INIT_HCA_LOG_MPT_SZ_OFFSET);
+        MLX4_PUT(inbox, param->mtt_base,   INIT_HCA_MTT_BASE_OFFSET);
+        MLX4_PUT(inbox, param->cmpt_base,  INIT_HCA_CMPT_BASE_OFFSET);
+
+        /* UAR attributes */
+
+        MLX4_PUT(inbox, (u8) (PAGE_SHIFT - 12), INIT_HCA_UAR_PAGE_SZ_OFFSET);
+        MLX4_PUT(inbox, param->log_uar_sz,      INIT_HCA_LOG_UAR_SZ_OFFSET);
+
+        err = mlx4_cmd(dev, mailbox->dma, 0, 0, MLX4_CMD_INIT_HCA, 1000);
+
+        if (err)
+                mlx4_err(dev, "INIT_HCA returns %d\n", err);
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        return err;
+}
+
+int mlx4_INIT_PORT(struct mlx4_dev *dev, struct mlx4_init_port_param *param, int port)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        u32 *inbox;
+        int err;
+        u32 flags;
+
+#define INIT_PORT_IN_SIZE          256
+#define INIT_PORT_FLAGS_OFFSET     0x00
+#define INIT_PORT_FLAG_SIG         (1 << 18)
+#define INIT_PORT_FLAG_NG          (1 << 17)
+#define INIT_PORT_FLAG_G0          (1 << 16)
+#define INIT_PORT_VL_SHIFT         4
+#define INIT_PORT_PORT_WIDTH_SHIFT 8
+#define INIT_PORT_MTU_OFFSET       0x04
+#define INIT_PORT_MAX_GID_OFFSET   0x06
+#define INIT_PORT_MAX_PKEY_OFFSET  0x0a
+#define INIT_PORT_GUID0_OFFSET     0x10
+#define INIT_PORT_NODE_GUID_OFFSET 0x18
+#define INIT_PORT_SI_GUID_OFFSET   0x20
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        inbox = mailbox->buf;
+
+        memset(inbox, 0, INIT_PORT_IN_SIZE);
+
+        flags = 0;
+        flags |= param->set_guid0     ? INIT_PORT_FLAG_G0  : 0;
+        flags |= param->set_node_guid ? INIT_PORT_FLAG_NG  : 0;
+        flags |= param->set_si_guid   ? INIT_PORT_FLAG_SIG : 0;
+        flags |= (param->vl_cap & 0xf) << INIT_PORT_VL_SHIFT;
+        flags |= (param->port_width_cap & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
+        MLX4_PUT(inbox, flags,            INIT_PORT_FLAGS_OFFSET);
+
+        MLX4_PUT(inbox, param->mtu,       INIT_PORT_MTU_OFFSET);
+        MLX4_PUT(inbox, param->max_gid,   INIT_PORT_MAX_GID_OFFSET);
+        MLX4_PUT(inbox, param->max_pkey,  INIT_PORT_MAX_PKEY_OFFSET);
+        MLX4_PUT(inbox, param->guid0,     INIT_PORT_GUID0_OFFSET);
+        MLX4_PUT(inbox, param->node_guid, INIT_PORT_NODE_GUID_OFFSET);
+        MLX4_PUT(inbox, param->si_guid,   INIT_PORT_SI_GUID_OFFSET);
+
+        err = mlx4_cmd(dev, mailbox->dma, port, 0, MLX4_CMD_INIT_PORT,
+                       MLX4_CMD_TIME_CLASS_A);
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_INIT_PORT);
+
+int mlx4_CLOSE_PORT(struct mlx4_dev *dev, int port)
+{
+        return mlx4_cmd(dev, 0, port, 0, MLX4_CMD_CLOSE_PORT, 1000);
+}
+EXPORT_SYMBOL_GPL(mlx4_CLOSE_PORT);
+
+int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic)
+{
+        return mlx4_cmd(dev, 0, 0, panic, MLX4_CMD_CLOSE_HCA, 1000);
+}
+
+int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages)
+{
+        int ret = mlx4_cmd_imm(dev, icm_size, aux_pages, 0, 0,
+                               MLX4_CMD_SET_ICM_SIZE,
+                               MLX4_CMD_TIME_CLASS_A);
+        if (ret)
+                return ret;
+
+        /*
+         * Round up number of system pages needed in case
+         * MLX4_ICM_PAGE_SIZE < PAGE_SIZE.
+         */
+        *aux_pages = ALIGN(*aux_pages, PAGE_SIZE / MLX4_ICM_PAGE_SIZE) >>
+                (PAGE_SHIFT - MLX4_ICM_PAGE_SHIFT);
+
+        return 0;
+}
+
+int mlx4_NOP(struct mlx4_dev *dev)
+{
+        /* Input modifier of 0x1f means "finish as soon as possible." */
+        return mlx4_cmd(dev, 0, 0x1f, 0, MLX4_CMD_NOP, 100);
+}
diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h
new file mode 100644
index 000000000000..2616fa53d4d0
--- /dev/null
+++ b/drivers/net/mlx4/fw.h
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_FW_H
+#define MLX4_FW_H
+
+#include "mlx4.h"
+#include "icm.h"
+
+struct mlx4_dev_cap {
+        int max_srq_sz;
+        int max_qp_sz;
+        int reserved_qps;
+        int max_qps;
+        int reserved_srqs;
+        int max_srqs;
+        int max_cq_sz;
+        int reserved_cqs;
+        int max_cqs;
+        int max_mpts;
+        int reserved_eqs;
+        int max_eqs;
+        int reserved_mtts;
+        int max_mrw_sz;
+        int reserved_mrws;
+        int max_mtt_seg;
+        int max_requester_per_qp;
+        int max_responder_per_qp;
+        int max_rdma_global;
+        int local_ca_ack_delay;
+        int max_mtu;
+        int max_port_width;
+        int max_vl;
+        int num_ports;
+        int max_gids;
+        u16 stat_rate_support;
+        int max_pkeys;
+        u32 flags;
+        int reserved_uars;
+        int uar_size;
+        int min_page_sz;
+        int bf_reg_size;
+        int bf_regs_per_page;
+        int max_sq_sg;
+        int max_sq_desc_sz;
+        int max_rq_sg;
+        int max_rq_desc_sz;
+        int max_qp_per_mcg;
+        int reserved_mgms;
+        int max_mcgs;
+        int reserved_pds;
+        int max_pds;
+        int qpc_entry_sz;
+        int rdmarc_entry_sz;
+        int altc_entry_sz;
+        int aux_entry_sz;
+        int srq_entry_sz;
+        int cqc_entry_sz;
+        int eqc_entry_sz;
+        int dmpt_entry_sz;
+        int cmpt_entry_sz;
+        int mtt_entry_sz;
+        int resize_srq;
+        u8  bmme_flags;
+        u32 reserved_lkey;
+        u64 max_icm_sz;
+};
+
+struct mlx4_adapter {
+        u32  vendor_id;
+        u32  device_id;
+        u32  revision_id;
+        char board_id[MLX4_BOARD_ID_LEN];
+        u8   inta_pin;
+};
+
+struct mlx4_init_hca_param {
+        u64 qpc_base;
+        u64 rdmarc_base;
+        u64 auxc_base;
+        u64 altc_base;
+        u64 srqc_base;
+        u64 cqc_base;
+        u64 eqc_base;
+        u64 mc_base;
+        u64 dmpt_base;
+        u64 cmpt_base;
+        u64 mtt_base;
+        u16 log_mc_entry_sz;
+        u16 log_mc_hash_sz;
+        u8  log_num_qps;
+        u8  log_num_srqs;
+        u8  log_num_cqs;
+        u8  log_num_eqs;
+        u8  log_rd_per_qp;
+        u8  log_mc_table_sz;
+        u8  log_mpt_sz;
+        u8  log_uar_sz;
+};
+
+struct mlx4_init_ib_param {
+        int port_width;
+        int vl_cap;
+        int mtu_cap;
+        u16 gid_cap;
+        u16 pkey_cap;
+        int set_guid0;
+        u64 guid0;
+        int set_node_guid;
+        u64 node_guid;
+        int set_si_guid;
+        u64 si_guid;
+};
+
+struct mlx4_set_ib_param {
+        int set_si_guid;
+        int reset_qkey_viol;
+        u64 si_guid;
+        u32 cap_mask;
+};
+
+int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap);
+int mlx4_MAP_FA(struct mlx4_dev *dev, struct mlx4_icm *icm);
+int mlx4_UNMAP_FA(struct mlx4_dev *dev);
+int mlx4_RUN_FW(struct mlx4_dev *dev);
+int mlx4_QUERY_FW(struct mlx4_dev *dev);
+int mlx4_QUERY_ADAPTER(struct mlx4_dev *dev, struct mlx4_adapter *adapter);
+int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param);
+int mlx4_CLOSE_HCA(struct mlx4_dev *dev, int panic);
+int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt);
+int mlx4_SET_ICM_SIZE(struct mlx4_dev *dev, u64 icm_size, u64 *aux_pages);
+int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm);
+int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev);
+int mlx4_NOP(struct mlx4_dev *dev);
+
+#endif /* MLX4_FW_H */
diff --git a/drivers/net/mlx4/icm.c b/drivers/net/mlx4/icm.c
new file mode 100644
index 000000000000..e96feaed6ed4
--- /dev/null
+++ b/drivers/net/mlx4/icm.c
@@ -0,0 +1,379 @@
+/*
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+#include "icm.h"
+#include "fw.h"
+
+/*
+ * We allocate in as big chunks as we can, up to a maximum of 256 KB
+ * per chunk.
+ */
+enum {
+        MLX4_ICM_ALLOC_SIZE     = 1 << 18,
+        MLX4_TABLE_CHUNK_SIZE   = 1 << 18
+};
+
+void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm)
+{
+        struct mlx4_icm_chunk *chunk, *tmp;
+        int i;
+
+        list_for_each_entry_safe(chunk, tmp, &icm->chunk_list, list) {
+                if (chunk->nsg > 0)
+                        pci_unmap_sg(dev->pdev, chunk->mem, chunk->npages,
+                                     PCI_DMA_BIDIRECTIONAL);
+
+                for (i = 0; i < chunk->npages; ++i)
+                        __free_pages(chunk->mem[i].page,
+                                     get_order(chunk->mem[i].length));
+
+                kfree(chunk);
+        }
+
+        kfree(icm);
+}
+
+struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
+                                gfp_t gfp_mask)
+{
+        struct mlx4_icm *icm;
+        struct mlx4_icm_chunk *chunk = NULL;
+        int cur_order;
+
+        icm = kmalloc(sizeof *icm, gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
+        if (!icm)
+                return icm;
+
+        icm->refcount = 0;
+        INIT_LIST_HEAD(&icm->chunk_list);
+
+        cur_order = get_order(MLX4_ICM_ALLOC_SIZE);
+
+        while (npages > 0) {
+                if (!chunk) {
+                        chunk = kmalloc(sizeof *chunk,
+                                        gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
+                        if (!chunk)
+                                goto fail;
+
+                        chunk->npages = 0;
+                        chunk->nsg    = 0;
+                        list_add_tail(&chunk->list, &icm->chunk_list);
+                }
+
+                while (1 << cur_order > npages)
+                        --cur_order;
+
+                chunk->mem[chunk->npages].page = alloc_pages(gfp_mask, cur_order);
+                if (chunk->mem[chunk->npages].page) {
+                        chunk->mem[chunk->npages].length = PAGE_SIZE << cur_order;
+                        chunk->mem[chunk->npages].offset = 0;
+
+                        if (++chunk->npages == MLX4_ICM_CHUNK_LEN) {
+                                chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
+                                                        chunk->npages,
+                                                        PCI_DMA_BIDIRECTIONAL);
+
+                                if (chunk->nsg <= 0)
+                                        goto fail;
+
+                                chunk = NULL;
+                        }
+
+                        npages -= 1 << cur_order;
+                } else {
+                        --cur_order;
+                        if (cur_order < 0)
+                                goto fail;
+                }
+        }
+
+        if (chunk) {
+                chunk->nsg = pci_map_sg(dev->pdev, chunk->mem,
+                                        chunk->npages,
+                                        PCI_DMA_BIDIRECTIONAL);
+
+                if (chunk->nsg <= 0)
+                        goto fail;
+        }
+
+        return icm;
+
+fail:
+        mlx4_free_icm(dev, icm);
+        return NULL;
+}
+
+static int mlx4_MAP_ICM(struct mlx4_dev *dev, struct mlx4_icm *icm, u64 virt)
+{
+        return mlx4_map_cmd(dev, MLX4_CMD_MAP_ICM, icm, virt);
+}
+
+int mlx4_UNMAP_ICM(struct mlx4_dev *dev, u64 virt, u32 page_count)
+{
+        return mlx4_cmd(dev, virt, page_count, 0, MLX4_CMD_UNMAP_ICM,
+                        MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_MAP_ICM_page(struct mlx4_dev *dev, u64 dma_addr, u64 virt)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        __be64 *inbox;
+        int err;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        inbox = mailbox->buf;
+
+        inbox[0] = cpu_to_be64(virt);
+        inbox[1] = cpu_to_be64(dma_addr);
+
+        err = mlx4_cmd(dev, mailbox->dma, 1, 0, MLX4_CMD_MAP_ICM,
+                       MLX4_CMD_TIME_CLASS_B);
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+
+        if (!err)
+                mlx4_dbg(dev, "Mapped page at %llx to %llx for ICM.\n",
+                          (unsigned long long) dma_addr, (unsigned long long) virt);
+
+        return err;
+}
+
+int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm)
+{
+        return mlx4_map_cmd(dev, MLX4_CMD_MAP_ICM_AUX, icm, -1);
+}
+
+int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev)
+{
+        return mlx4_cmd(dev, 0, 0, 0, MLX4_CMD_UNMAP_ICM_AUX, MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)
+{
+        int i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);
+        int ret = 0;
+
+        mutex_lock(&table->mutex);
+
+        if (table->icm[i]) {
+                ++table->icm[i]->refcount;
+                goto out;
+        }
+
+        table->icm[i] = mlx4_alloc_icm(dev, MLX4_TABLE_CHUNK_SIZE >> PAGE_SHIFT,
+                                       (table->lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
+                                       __GFP_NOWARN);
+        if (!table->icm[i]) {
+                ret = -ENOMEM;
+                goto out;
+        }
+
+        if (mlx4_MAP_ICM(dev, table->icm[i], table->virt +
+                         (u64) i * MLX4_TABLE_CHUNK_SIZE)) {
+                mlx4_free_icm(dev, table->icm[i]);
+                table->icm[i] = NULL;
+                ret = -ENOMEM;
+                goto out;
+        }
+
+        ++table->icm[i]->refcount;
+
+out:
+        mutex_unlock(&table->mutex);
+        return ret;
+}
+
+void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj)
+{
+        int i;
+
+        i = (obj & (table->num_obj - 1)) / (MLX4_TABLE_CHUNK_SIZE / table->obj_size);
+
+        mutex_lock(&table->mutex);
+
+        if (--table->icm[i]->refcount == 0) {
+                mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,
+                               MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
+                mlx4_free_icm(dev, table->icm[i]);
+                table->icm[i] = NULL;
+        }
+
+        mutex_unlock(&table->mutex);
+}
+
+void *mlx4_table_find(struct mlx4_icm_table *table, int obj)
+{
+        int idx, offset, i;
+        struct mlx4_icm_chunk *chunk;
+        struct mlx4_icm *icm;
+        struct page *page = NULL;
+
+        if (!table->lowmem)
+                return NULL;
+
+        mutex_lock(&table->mutex);
+
+        idx = obj & (table->num_obj - 1);
+        icm = table->icm[idx / (MLX4_TABLE_CHUNK_SIZE / table->obj_size)];
+        offset = idx % (MLX4_TABLE_CHUNK_SIZE / table->obj_size);
+
+        if (!icm)
+                goto out;
+
+        list_for_each_entry(chunk, &icm->chunk_list, list) {
+                for (i = 0; i < chunk->npages; ++i) {
+                        if (chunk->mem[i].length > offset) {
+                                page = chunk->mem[i].page;
+                                goto out;
+                        }
+                        offset -= chunk->mem[i].length;
+                }
+        }
+
+out:
+        mutex_unlock(&table->mutex);
+        return page ? lowmem_page_address(page) + offset : NULL;
+}
+
+int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+                         int start, int end)
+{
+        int inc = MLX4_TABLE_CHUNK_SIZE / table->obj_size;
+        int i, err;
+
+        for (i = start; i <= end; i += inc) {
+                err = mlx4_table_get(dev, table, i);
+                if (err)
+                        goto fail;
+        }
+
+        return 0;
+
+fail:
+        while (i > start) {
+                i -= inc;
+                mlx4_table_put(dev, table, i);
+        }
+
+        return err;
+}
+
+void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+                          int start, int end)
+{
+        int i;
+
+        for (i = start; i <= end; i += MLX4_TABLE_CHUNK_SIZE / table->obj_size)
+                mlx4_table_put(dev, table, i);
+}
+
+int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+                        u64 virt, int obj_size, int nobj, int reserved,
+                        int use_lowmem)
+{
+        int obj_per_chunk;
+        int num_icm;
+        unsigned chunk_size;
+        int i;
+
+        obj_per_chunk = MLX4_TABLE_CHUNK_SIZE / obj_size;
+        num_icm = (nobj + obj_per_chunk - 1) / obj_per_chunk;
+
+        table->icm      = kcalloc(num_icm, sizeof *table->icm, GFP_KERNEL);
+        if (!table->icm)
+                return -ENOMEM;
+        table->virt     = virt;
+        table->num_icm  = num_icm;
+        table->num_obj  = nobj;
+        table->obj_size = obj_size;
+        table->lowmem   = use_lowmem;
+        mutex_init(&table->mutex);
+
+        for (i = 0; i * MLX4_TABLE_CHUNK_SIZE < reserved * obj_size; ++i) {
+                chunk_size = MLX4_TABLE_CHUNK_SIZE;
+                if ((i + 1) * MLX4_TABLE_CHUNK_SIZE > nobj * obj_size)
+                        chunk_size = PAGE_ALIGN(nobj * obj_size - i * MLX4_TABLE_CHUNK_SIZE);
+
+                table->icm[i] = mlx4_alloc_icm(dev, chunk_size >> PAGE_SHIFT,
+                                               (use_lowmem ? GFP_KERNEL : GFP_HIGHUSER) |
+                                               __GFP_NOWARN);
+                if (!table->icm[i])
+                        goto err;
+                if (mlx4_MAP_ICM(dev, table->icm[i], virt + i * MLX4_TABLE_CHUNK_SIZE)) {
+                        mlx4_free_icm(dev, table->icm[i]);
+                        table->icm[i] = NULL;
+                        goto err;
+                }
+
+                /*
+                 * Add a reference to this ICM chunk so that it never
+                 * gets freed (since it contains reserved firmware objects).
+                 */
+                ++table->icm[i]->refcount;
+        }
+
+        return 0;
+
+err:
+        for (i = 0; i < num_icm; ++i)
+                if (table->icm[i]) {
+                        mlx4_UNMAP_ICM(dev, virt + i * MLX4_TABLE_CHUNK_SIZE,
+                                       MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
+                        mlx4_free_icm(dev, table->icm[i]);
+                }
+
+        return -ENOMEM;
+}
+
+void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table)
+{
+        int i;
+
+        for (i = 0; i < table->num_icm; ++i)
+                if (table->icm[i]) {
+                        mlx4_UNMAP_ICM(dev, table->virt + i * MLX4_TABLE_CHUNK_SIZE,
+                                       MLX4_TABLE_CHUNK_SIZE / MLX4_ICM_PAGE_SIZE);
+                        mlx4_free_icm(dev, table->icm[i]);
+                }
+
+        kfree(table->icm);
+}
diff --git a/drivers/net/mlx4/icm.h b/drivers/net/mlx4/icm.h
new file mode 100644
index 000000000000..bea223d879a5
--- /dev/null
+++ b/drivers/net/mlx4/icm.h
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_ICM_H
+#define MLX4_ICM_H
+
+#include <linux/list.h>
+#include <linux/pci.h>
+#include <linux/mutex.h>
+
+#define MLX4_ICM_CHUNK_LEN                                              \
+        ((256 - sizeof (struct list_head) - 2 * sizeof (int)) /         \
+         (sizeof (struct scatterlist)))
+
+enum {
+        MLX4_ICM_PAGE_SHIFT     = 12,
+        MLX4_ICM_PAGE_SIZE      = 1 << MLX4_ICM_PAGE_SHIFT,
+};
+
+struct mlx4_icm_chunk {
+        struct list_head        list;
+        int                     npages;
+        int                     nsg;
+        struct scatterlist      mem[MLX4_ICM_CHUNK_LEN];
+};
+
+struct mlx4_icm {
+        struct list_head        chunk_list;
+        int                     refcount;
+};
+
+struct mlx4_icm_iter {
+        struct mlx4_icm        *icm;
+        struct mlx4_icm_chunk  *chunk;
+        int                     page_idx;
+};
+
+struct mlx4_dev;
+
+struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages, gfp_t gfp_mask);
+void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm);
+
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
+void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
+int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+                         int start, int end);
+void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+                          int start, int end);
+int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+                        u64 virt, int obj_size, int nobj, int reserved,
+                        int use_lowmem);
+void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table);
+int mlx4_table_get(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
+void mlx4_table_put(struct mlx4_dev *dev, struct mlx4_icm_table *table, int obj);
+void *mlx4_table_find(struct mlx4_icm_table *table, int obj);
+int mlx4_table_get_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+                         int start, int end);
+void mlx4_table_put_range(struct mlx4_dev *dev, struct mlx4_icm_table *table,
+                          int start, int end);
+
+static inline void mlx4_icm_first(struct mlx4_icm *icm,
+                                  struct mlx4_icm_iter *iter)
+{
+        iter->icm      = icm;
+        iter->chunk    = list_empty(&icm->chunk_list) ?
+                NULL : list_entry(icm->chunk_list.next,
+                                  struct mlx4_icm_chunk, list);
+        iter->page_idx = 0;
+}
+
+static inline int mlx4_icm_last(struct mlx4_icm_iter *iter)
+{
+        return !iter->chunk;
+}
+
+static inline void mlx4_icm_next(struct mlx4_icm_iter *iter)
+{
+        if (++iter->page_idx >= iter->chunk->nsg) {
+                if (iter->chunk->list.next == &iter->icm->chunk_list) {
+                        iter->chunk = NULL;
+                        return;
+                }
+
+                iter->chunk = list_entry(iter->chunk->list.next,
+                                         struct mlx4_icm_chunk, list);
+                iter->page_idx = 0;
+        }
+}
+
+static inline dma_addr_t mlx4_icm_addr(struct mlx4_icm_iter *iter)
+{
+        return sg_dma_address(&iter->chunk->mem[iter->page_idx]);
+}
+
+static inline unsigned long mlx4_icm_size(struct mlx4_icm_iter *iter)
+{
+        return sg_dma_len(&iter->chunk->mem[iter->page_idx]);
+}
+
+int mlx4_UNMAP_ICM(struct mlx4_dev *dev, u64 virt, u32 page_count);
+int mlx4_MAP_ICM_page(struct mlx4_dev *dev, u64 dma_addr, u64 virt);
+int mlx4_MAP_ICM_AUX(struct mlx4_dev *dev, struct mlx4_icm *icm);
+int mlx4_UNMAP_ICM_AUX(struct mlx4_dev *dev);
+
+#endif /* MLX4_ICM_H */
diff --git a/drivers/net/mlx4/intf.c b/drivers/net/mlx4/intf.c
new file mode 100644
index 000000000000..65854f9e9c76
--- /dev/null
+++ b/drivers/net/mlx4/intf.c
@@ -0,0 +1,165 @@
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/mlx4/driver.h>
+
+#include "mlx4.h"
+
+struct mlx4_device_context {
+        struct list_head        list;
+        struct mlx4_interface  *intf;
+        void                   *context;
+};
+
+static LIST_HEAD(intf_list);
+static LIST_HEAD(dev_list);
+static DEFINE_MUTEX(intf_mutex);
+
+static void mlx4_add_device(struct mlx4_interface *intf, struct mlx4_priv *priv)
+{
+        struct mlx4_device_context *dev_ctx;
+
+        dev_ctx = kmalloc(sizeof *dev_ctx, GFP_KERNEL);
+        if (!dev_ctx)
+                return;
+
+        dev_ctx->intf    = intf;
+        dev_ctx->context = intf->add(&priv->dev);
+
+        if (dev_ctx->context) {
+                spin_lock_irq(&priv->ctx_lock);
+                list_add_tail(&dev_ctx->list, &priv->ctx_list);
+                spin_unlock_irq(&priv->ctx_lock);
+        } else
+                kfree(dev_ctx);
+}
+
+static void mlx4_remove_device(struct mlx4_interface *intf, struct mlx4_priv *priv)
+{
+        struct mlx4_device_context *dev_ctx;
+
+        list_for_each_entry(dev_ctx, &priv->ctx_list, list)
+                if (dev_ctx->intf == intf) {
+                        spin_lock_irq(&priv->ctx_lock);
+                        list_del(&dev_ctx->list);
+                        spin_unlock_irq(&priv->ctx_lock);
+
+                        intf->remove(&priv->dev, dev_ctx->context);
+                        kfree(dev_ctx);
+                        return;
+                }
+}
+
+int mlx4_register_interface(struct mlx4_interface *intf)
+{
+        struct mlx4_priv *priv;
+
+        if (!intf->add || !intf->remove)
+                return -EINVAL;
+
+        mutex_lock(&intf_mutex);
+
+        list_add_tail(&intf->list, &intf_list);
+        list_for_each_entry(priv, &dev_list, dev_list)
+                mlx4_add_device(intf, priv);
+
+        mutex_unlock(&intf_mutex);
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_register_interface);
+
+void mlx4_unregister_interface(struct mlx4_interface *intf)
+{
+        struct mlx4_priv *priv;
+
+        mutex_lock(&intf_mutex);
+
+        list_for_each_entry(priv, &dev_list, dev_list)
+                mlx4_remove_device(intf, priv);
+
+        list_del(&intf->list);
+
+        mutex_unlock(&intf_mutex);
+}
+EXPORT_SYMBOL_GPL(mlx4_unregister_interface);
+
+void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_event type,
+                         int subtype, int port)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_device_context *dev_ctx;
+        unsigned long flags;
+
+        spin_lock_irqsave(&priv->ctx_lock, flags);
+
+        list_for_each_entry(dev_ctx, &priv->ctx_list, list)
+                if (dev_ctx->intf->event)
+                        dev_ctx->intf->event(dev, dev_ctx->context, type,
+                                             subtype, port);
+
+        spin_unlock_irqrestore(&priv->ctx_lock, flags);
+}
+
+int mlx4_register_device(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_interface *intf;
+
+        INIT_LIST_HEAD(&priv->ctx_list);
+        spin_lock_init(&priv->ctx_lock);
+
+        mutex_lock(&intf_mutex);
+
+        list_add_tail(&priv->dev_list, &dev_list);
+        list_for_each_entry(intf, &intf_list, list)
+                mlx4_add_device(intf, priv);
+
+        mutex_unlock(&intf_mutex);
+
+        return 0;
+}
+
+void mlx4_unregister_device(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_interface *intf;
+
+        mutex_lock(&intf_mutex);
+
+        list_for_each_entry(intf, &intf_list, list)
+                mlx4_remove_device(intf, priv);
+
+        list_del(&priv->dev_list);
+
+        mutex_unlock(&intf_mutex);
+}
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
new file mode 100644
index 000000000000..4debb024eaf9
--- /dev/null
+++ b/drivers/net/mlx4/main.c
@@ -0,0 +1,936 @@
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/doorbell.h>
+
+#include "mlx4.h"
+#include "fw.h"
+#include "icm.h"
+
+MODULE_AUTHOR("Roland Dreier");
+MODULE_DESCRIPTION("Mellanox ConnectX HCA low-level driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_VERSION(DRV_VERSION);
+
+#ifdef CONFIG_MLX4_DEBUG
+
+int mlx4_debug_level = 0;
+module_param_named(debug_level, mlx4_debug_level, int, 0644);
+MODULE_PARM_DESC(debug_level, "Enable debug tracing if > 0");
+
+#endif /* CONFIG_MLX4_DEBUG */
+
+#ifdef CONFIG_PCI_MSI
+
+static int msi_x;
+module_param(msi_x, int, 0444);
+MODULE_PARM_DESC(msi_x, "attempt to use MSI-X if nonzero");
+
+#else /* CONFIG_PCI_MSI */
+
+#define msi_x (0)
+
+#endif /* CONFIG_PCI_MSI */
+
+static const char mlx4_version[] __devinitdata =
+        DRV_NAME ": Mellanox ConnectX core driver v"
+        DRV_VERSION " (" DRV_RELDATE ")\n";
+
+static struct mlx4_profile default_profile = {
+        .num_qp         = 1 << 16,
+        .num_srq        = 1 << 16,
+        .rdmarc_per_qp  = 4,
+        .num_cq         = 1 << 16,
+        .num_mcg        = 1 << 13,
+        .num_mpt        = 1 << 17,
+        .num_mtt        = 1 << 20,
+};
+
+static int __devinit mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
+{
+        int err;
+
+        err = mlx4_QUERY_DEV_CAP(dev, dev_cap);
+        if (err) {
+                mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
+                return err;
+        }
+
+        if (dev_cap->min_page_sz > PAGE_SIZE) {
+                mlx4_err(dev, "HCA minimum page size of %d bigger than "
+                         "kernel PAGE_SIZE of %ld, aborting.\n",
+                         dev_cap->min_page_sz, PAGE_SIZE);
+                return -ENODEV;
+        }
+        if (dev_cap->num_ports > MLX4_MAX_PORTS) {
+                mlx4_err(dev, "HCA has %d ports, but we only support %d, "
+                         "aborting.\n",
+                         dev_cap->num_ports, MLX4_MAX_PORTS);
+                return -ENODEV;
+        }
+
+        if (dev_cap->uar_size > pci_resource_len(dev->pdev, 2)) {
+                mlx4_err(dev, "HCA reported UAR size of 0x%x bigger than "
+                         "PCI resource 2 size of 0x%llx, aborting.\n",
+                         dev_cap->uar_size,
+                         (unsigned long long) pci_resource_len(dev->pdev, 2));
+                return -ENODEV;
+        }
+
+        dev->caps.num_ports          = dev_cap->num_ports;
+        dev->caps.num_uars           = dev_cap->uar_size / PAGE_SIZE;
+        dev->caps.vl_cap             = dev_cap->max_vl;
+        dev->caps.mtu_cap            = dev_cap->max_mtu;
+        dev->caps.gid_table_len      = dev_cap->max_gids;
+        dev->caps.pkey_table_len     = dev_cap->max_pkeys;
+        dev->caps.local_ca_ack_delay = dev_cap->local_ca_ack_delay;
+        dev->caps.bf_reg_size        = dev_cap->bf_reg_size;
+        dev->caps.bf_regs_per_page   = dev_cap->bf_regs_per_page;
+        dev->caps.max_sq_sg          = dev_cap->max_sq_sg;
+        dev->caps.max_rq_sg          = dev_cap->max_rq_sg;
+        dev->caps.max_wqes           = dev_cap->max_qp_sz;
+        dev->caps.max_qp_init_rdma   = dev_cap->max_requester_per_qp;
+        dev->caps.reserved_qps       = dev_cap->reserved_qps;
+        dev->caps.max_srq_wqes       = dev_cap->max_srq_sz;
+        dev->caps.max_srq_sge        = dev_cap->max_rq_sg - 1;
+        dev->caps.reserved_srqs      = dev_cap->reserved_srqs;
+        dev->caps.max_sq_desc_sz     = dev_cap->max_sq_desc_sz;
+        dev->caps.max_rq_desc_sz     = dev_cap->max_rq_desc_sz;
+        dev->caps.num_qp_per_mgm     = MLX4_QP_PER_MGM;
+        /*
+         * Subtract 1 from the limit because we need to allocate a
+         * spare CQE so the HCA HW can tell the difference between an
+         * empty CQ and a full CQ.
+         */
+        dev->caps.max_cqes           = dev_cap->max_cq_sz - 1;
+        dev->caps.reserved_cqs       = dev_cap->reserved_cqs;
+        dev->caps.reserved_eqs       = dev_cap->reserved_eqs;
+        dev->caps.reserved_mtts      = dev_cap->reserved_mtts;
+        dev->caps.reserved_mrws      = dev_cap->reserved_mrws;
+        dev->caps.reserved_uars      = dev_cap->reserved_uars;
+        dev->caps.reserved_pds       = dev_cap->reserved_pds;
+        dev->caps.port_width_cap     = dev_cap->max_port_width;
+        dev->caps.mtt_entry_sz       = MLX4_MTT_ENTRY_PER_SEG * dev_cap->mtt_entry_sz;
+        dev->caps.page_size_cap      = ~(u32) (dev_cap->min_page_sz - 1);
+        dev->caps.flags              = dev_cap->flags;
+        dev->caps.stat_rate_support  = dev_cap->stat_rate_support;
+
+        return 0;
+}
+
+static int __devinit mlx4_load_fw(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int err;
+
+        priv->fw.fw_icm = mlx4_alloc_icm(dev, priv->fw.fw_pages,
+                                         GFP_HIGHUSER | __GFP_NOWARN);
+        if (!priv->fw.fw_icm) {
+                mlx4_err(dev, "Couldn't allocate FW area, aborting.\n");
+                return -ENOMEM;
+        }
+
+        err = mlx4_MAP_FA(dev, priv->fw.fw_icm);
+        if (err) {
+                mlx4_err(dev, "MAP_FA command failed, aborting.\n");
+                goto err_free;
+        }
+
+        err = mlx4_RUN_FW(dev);
+        if (err) {
+                mlx4_err(dev, "RUN_FW command failed, aborting.\n");
+                goto err_unmap_fa;
+        }
+
+        return 0;
+
+err_unmap_fa:
+        mlx4_UNMAP_FA(dev);
+
+err_free:
+        mlx4_free_icm(dev, priv->fw.fw_icm);
+        return err;
+}
+
+static int __devinit mlx4_init_cmpt_table(struct mlx4_dev *dev, u64 cmpt_base,
+                                          int cmpt_entry_sz)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int err;
+
+        err = mlx4_init_icm_table(dev, &priv->qp_table.cmpt_table,
+                                  cmpt_base +
+                                  ((u64) (MLX4_CMPT_TYPE_QP *
+                                          cmpt_entry_sz) << MLX4_CMPT_SHIFT),
+                                  cmpt_entry_sz, dev->caps.num_qps,
+                                  dev->caps.reserved_qps, 0);
+        if (err)
+                goto err;
+
+        err = mlx4_init_icm_table(dev, &priv->srq_table.cmpt_table,
+                                  cmpt_base +
+                                  ((u64) (MLX4_CMPT_TYPE_SRQ *
+                                          cmpt_entry_sz) << MLX4_CMPT_SHIFT),
+                                  cmpt_entry_sz, dev->caps.num_srqs,
+                                  dev->caps.reserved_srqs, 0);
+        if (err)
+                goto err_qp;
+
+        err = mlx4_init_icm_table(dev, &priv->cq_table.cmpt_table,
+                                  cmpt_base +
+                                  ((u64) (MLX4_CMPT_TYPE_CQ *
+                                          cmpt_entry_sz) << MLX4_CMPT_SHIFT),
+                                  cmpt_entry_sz, dev->caps.num_cqs,
+                                  dev->caps.reserved_cqs, 0);
+        if (err)
+                goto err_srq;
+
+        err = mlx4_init_icm_table(dev, &priv->eq_table.cmpt_table,
+                                  cmpt_base +
+                                  ((u64) (MLX4_CMPT_TYPE_EQ *
+                                          cmpt_entry_sz) << MLX4_CMPT_SHIFT),
+                                  cmpt_entry_sz,
+                                  roundup_pow_of_two(MLX4_NUM_EQ +
+                                                     dev->caps.reserved_eqs),
+                                  MLX4_NUM_EQ + dev->caps.reserved_eqs, 0);
+        if (err)
+                goto err_cq;
+
+        return 0;
+
+err_cq:
+        mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
+
+err_srq:
+        mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
+
+err_qp:
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
+
+err:
+        return err;
+}
+
+static int __devinit mlx4_init_icm(struct mlx4_dev *dev,
+                                   struct mlx4_dev_cap *dev_cap,
+                                   struct mlx4_init_hca_param *init_hca,
+                                   u64 icm_size)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        u64 aux_pages;
+        int err;
+
+        err = mlx4_SET_ICM_SIZE(dev, icm_size, &aux_pages);
+        if (err) {
+                mlx4_err(dev, "SET_ICM_SIZE command failed, aborting.\n");
+                return err;
+        }
+
+        mlx4_dbg(dev, "%lld KB of HCA context requires %lld KB aux memory.\n",
+                 (unsigned long long) icm_size >> 10,
+                 (unsigned long long) aux_pages << 2);
+
+        priv->fw.aux_icm = mlx4_alloc_icm(dev, aux_pages,
+                                          GFP_HIGHUSER | __GFP_NOWARN);
+        if (!priv->fw.aux_icm) {
+                mlx4_err(dev, "Couldn't allocate aux memory, aborting.\n");
+                return -ENOMEM;
+        }
+
+        err = mlx4_MAP_ICM_AUX(dev, priv->fw.aux_icm);
+        if (err) {
+                mlx4_err(dev, "MAP_ICM_AUX command failed, aborting.\n");
+                goto err_free_aux;
+        }
+
+        err = mlx4_init_cmpt_table(dev, init_hca->cmpt_base, dev_cap->cmpt_entry_sz);
+        if (err) {
+                mlx4_err(dev, "Failed to map cMPT context memory, aborting.\n");
+                goto err_unmap_aux;
+        }
+
+        err = mlx4_map_eq_icm(dev, init_hca->eqc_base);
+        if (err) {
+                mlx4_err(dev, "Failed to map EQ context memory, aborting.\n");
+                goto err_unmap_cmpt;
+        }
+
+        err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table,
+                                  init_hca->mtt_base,
+                                  dev->caps.mtt_entry_sz,
+                                  dev->caps.num_mtt_segs,
+                                  dev->caps.reserved_mtts, 1);
+        if (err) {
+                mlx4_err(dev, "Failed to map MTT context memory, aborting.\n");
+                goto err_unmap_eq;
+        }
+
+        err = mlx4_init_icm_table(dev, &priv->mr_table.dmpt_table,
+                                  init_hca->dmpt_base,
+                                  dev_cap->dmpt_entry_sz,
+                                  dev->caps.num_mpts,
+                                  dev->caps.reserved_mrws, 1);
+        if (err) {
+                mlx4_err(dev, "Failed to map dMPT context memory, aborting.\n");
+                goto err_unmap_mtt;
+        }
+
+        err = mlx4_init_icm_table(dev, &priv->qp_table.qp_table,
+                                  init_hca->qpc_base,
+                                  dev_cap->qpc_entry_sz,
+                                  dev->caps.num_qps,
+                                  dev->caps.reserved_qps, 0);
+        if (err) {
+                mlx4_err(dev, "Failed to map QP context memory, aborting.\n");
+                goto err_unmap_dmpt;
+        }
+
+        err = mlx4_init_icm_table(dev, &priv->qp_table.auxc_table,
+                                  init_hca->auxc_base,
+                                  dev_cap->aux_entry_sz,
+                                  dev->caps.num_qps,
+                                  dev->caps.reserved_qps, 0);
+        if (err) {
+                mlx4_err(dev, "Failed to map AUXC context memory, aborting.\n");
+                goto err_unmap_qp;
+        }
+
+        err = mlx4_init_icm_table(dev, &priv->qp_table.altc_table,
+                                  init_hca->altc_base,
+                                  dev_cap->altc_entry_sz,
+                                  dev->caps.num_qps,
+                                  dev->caps.reserved_qps, 0);
+        if (err) {
+                mlx4_err(dev, "Failed to map ALTC context memory, aborting.\n");
+                goto err_unmap_auxc;
+        }
+
+        err = mlx4_init_icm_table(dev, &priv->qp_table.rdmarc_table,
+                                  init_hca->rdmarc_base,
+                                  dev_cap->rdmarc_entry_sz << priv->qp_table.rdmarc_shift,
+                                  dev->caps.num_qps,
+                                  dev->caps.reserved_qps, 0);
+        if (err) {
+                mlx4_err(dev, "Failed to map RDMARC context memory, aborting\n");
+                goto err_unmap_altc;
+        }
+
+        err = mlx4_init_icm_table(dev, &priv->cq_table.table,
+                                  init_hca->cqc_base,
+                                  dev_cap->cqc_entry_sz,
+                                  dev->caps.num_cqs,
+                                  dev->caps.reserved_cqs, 0);
+        if (err) {
+                mlx4_err(dev, "Failed to map CQ context memory, aborting.\n");
+                goto err_unmap_rdmarc;
+        }
+
+        err = mlx4_init_icm_table(dev, &priv->srq_table.table,
+                                  init_hca->srqc_base,
+                                  dev_cap->srq_entry_sz,
+                                  dev->caps.num_srqs,
+                                  dev->caps.reserved_srqs, 0);
+        if (err) {
+                mlx4_err(dev, "Failed to map SRQ context memory, aborting.\n");
+                goto err_unmap_cq;
+        }
+
+        /*
+         * It's not strictly required, but for simplicity just map the
+         * whole multicast group table now.  The table isn't very big
+         * and it's a lot easier than trying to track ref counts.
+         */
+        err = mlx4_init_icm_table(dev, &priv->mcg_table.table,
+                                  init_hca->mc_base, MLX4_MGM_ENTRY_SIZE,
+                                  dev->caps.num_mgms + dev->caps.num_amgms,
+                                  dev->caps.num_mgms + dev->caps.num_amgms,
+                                  0);
+        if (err) {
+                mlx4_err(dev, "Failed to map MCG context memory, aborting.\n");
+                goto err_unmap_srq;
+        }
+
+        return 0;
+
+err_unmap_srq:
+        mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
+
+err_unmap_cq:
+        mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
+
+err_unmap_rdmarc:
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
+
+err_unmap_altc:
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
+
+err_unmap_auxc:
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
+
+err_unmap_qp:
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
+
+err_unmap_dmpt:
+        mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
+
+err_unmap_mtt:
+        mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
+
+err_unmap_eq:
+        mlx4_unmap_eq_icm(dev);
+
+err_unmap_cmpt:
+        mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
+        mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
+        mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
+
+err_unmap_aux:
+        mlx4_UNMAP_ICM_AUX(dev);
+
+err_free_aux:
+        mlx4_free_icm(dev, priv->fw.aux_icm);
+
+        return err;
+}
+
+static void mlx4_free_icms(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        mlx4_cleanup_icm_table(dev, &priv->mcg_table.table);
+        mlx4_cleanup_icm_table(dev, &priv->srq_table.table);
+        mlx4_cleanup_icm_table(dev, &priv->cq_table.table);
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.rdmarc_table);
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.altc_table);
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.auxc_table);
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.qp_table);
+        mlx4_cleanup_icm_table(dev, &priv->mr_table.dmpt_table);
+        mlx4_cleanup_icm_table(dev, &priv->mr_table.mtt_table);
+        mlx4_cleanup_icm_table(dev, &priv->eq_table.cmpt_table);
+        mlx4_cleanup_icm_table(dev, &priv->cq_table.cmpt_table);
+        mlx4_cleanup_icm_table(dev, &priv->srq_table.cmpt_table);
+        mlx4_cleanup_icm_table(dev, &priv->qp_table.cmpt_table);
+        mlx4_unmap_eq_icm(dev);
+
+        mlx4_UNMAP_ICM_AUX(dev);
+        mlx4_free_icm(dev, priv->fw.aux_icm);
+}
+
+static void mlx4_close_hca(struct mlx4_dev *dev)
+{
+        mlx4_CLOSE_HCA(dev, 0);
+        mlx4_free_icms(dev);
+        mlx4_UNMAP_FA(dev);
+        mlx4_free_icm(dev, mlx4_priv(dev)->fw.fw_icm);
+}
+
+static int __devinit mlx4_init_hca(struct mlx4_dev *dev)
+{
+        struct mlx4_priv          *priv = mlx4_priv(dev);
+        struct mlx4_adapter        adapter;
+        struct mlx4_dev_cap        dev_cap;
+        struct mlx4_profile        profile;
+        struct mlx4_init_hca_param init_hca;
+        u64 icm_size;
+        int err;
+
+        err = mlx4_QUERY_FW(dev);
+        if (err) {
+                mlx4_err(dev, "QUERY_FW command failed, aborting.\n");
+                return err;
+        }
+
+        err = mlx4_load_fw(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to start FW, aborting.\n");
+                return err;
+        }
+
+        err = mlx4_dev_cap(dev, &dev_cap);
+        if (err) {
+                mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
+                goto err_stop_fw;
+        }
+
+        profile = default_profile;
+
+        icm_size = mlx4_make_profile(dev, &profile, &dev_cap, &init_hca);
+        if ((long long) icm_size < 0) {
+                err = icm_size;
+                goto err_stop_fw;
+        }
+
+        init_hca.log_uar_sz = ilog2(dev->caps.num_uars);
+
+        err = mlx4_init_icm(dev, &dev_cap, &init_hca, icm_size);
+        if (err)
+                goto err_stop_fw;
+
+        err = mlx4_INIT_HCA(dev, &init_hca);
+        if (err) {
+                mlx4_err(dev, "INIT_HCA command failed, aborting.\n");
+                goto err_free_icm;
+        }
+
+        err = mlx4_QUERY_ADAPTER(dev, &adapter);
+        if (err) {
+                mlx4_err(dev, "QUERY_ADAPTER command failed, aborting.\n");
+                goto err_close;
+        }
+
+        priv->eq_table.inta_pin = adapter.inta_pin;
+        priv->rev_id            = adapter.revision_id;
+        memcpy(priv->board_id, adapter.board_id, sizeof priv->board_id);
+
+        return 0;
+
+err_close:
+        mlx4_close_hca(dev);
+
+err_free_icm:
+        mlx4_free_icms(dev);
+
+err_stop_fw:
+        mlx4_UNMAP_FA(dev);
+        mlx4_free_icm(dev, priv->fw.fw_icm);
+
+        return err;
+}
+
+static int __devinit mlx4_setup_hca(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int err;
+
+        MLX4_INIT_DOORBELL_LOCK(&priv->doorbell_lock);
+
+        err = mlx4_init_uar_table(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to initialize "
+                         "user access region table, aborting.\n");
+                return err;
+        }
+
+        err = mlx4_uar_alloc(dev, &priv->driver_uar);
+        if (err) {
+                mlx4_err(dev, "Failed to allocate driver access region, "
+                         "aborting.\n");
+                goto err_uar_table_free;
+        }
+
+        priv->kar = ioremap(priv->driver_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
+        if (!priv->kar) {
+                mlx4_err(dev, "Couldn't map kernel access region, "
+                         "aborting.\n");
+                err = -ENOMEM;
+                goto err_uar_free;
+        }
+
+        err = mlx4_init_pd_table(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to initialize "
+                         "protection domain table, aborting.\n");
+                goto err_kar_unmap;
+        }
+
+        err = mlx4_init_mr_table(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to initialize "
+                         "memory region table, aborting.\n");
+                goto err_pd_table_free;
+        }
+
+        mlx4_map_catas_buf(dev);
+
+        err = mlx4_init_eq_table(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to initialize "
+                         "event queue table, aborting.\n");
+                goto err_catas_buf;
+        }
+
+        err = mlx4_cmd_use_events(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to switch to event-driven "
+                         "firmware commands, aborting.\n");
+                goto err_eq_table_free;
+        }
+
+        err = mlx4_NOP(dev);
+        if (err) {
+                mlx4_err(dev, "NOP command failed to generate interrupt "
+                         "(IRQ %d), aborting.\n",
+                         priv->eq_table.eq[MLX4_EQ_ASYNC].irq);
+                if (dev->flags & MLX4_FLAG_MSI_X)
+                        mlx4_err(dev, "Try again with MSI-X disabled.\n");
+                else
+                        mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
+
+                goto err_cmd_poll;
+        }
+
+        mlx4_dbg(dev, "NOP command IRQ test passed\n");
+
+        err = mlx4_init_cq_table(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to initialize "
+                         "completion queue table, aborting.\n");
+                goto err_cmd_poll;
+        }
+
+        err = mlx4_init_srq_table(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to initialize "
+                         "shared receive queue table, aborting.\n");
+                goto err_cq_table_free;
+        }
+
+        err = mlx4_init_qp_table(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to initialize "
+                         "queue pair table, aborting.\n");
+                goto err_srq_table_free;
+        }
+
+        err = mlx4_init_mcg_table(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to initialize "
+                         "multicast group table, aborting.\n");
+                goto err_qp_table_free;
+        }
+
+        return 0;
+
+err_qp_table_free:
+        mlx4_cleanup_qp_table(dev);
+
+err_srq_table_free:
+        mlx4_cleanup_srq_table(dev);
+
+err_cq_table_free:
+        mlx4_cleanup_cq_table(dev);
+
+err_cmd_poll:
+        mlx4_cmd_use_polling(dev);
+
+err_eq_table_free:
+        mlx4_cleanup_eq_table(dev);
+
+err_catas_buf:
+        mlx4_unmap_catas_buf(dev);
+        mlx4_cleanup_mr_table(dev);
+
+err_pd_table_free:
+        mlx4_cleanup_pd_table(dev);
+
+err_kar_unmap:
+        iounmap(priv->kar);
+
+err_uar_free:
+        mlx4_uar_free(dev, &priv->driver_uar);
+
+err_uar_table_free:
+        mlx4_cleanup_uar_table(dev);
+        return err;
+}
+
+static void __devinit mlx4_enable_msi_x(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct msix_entry entries[MLX4_NUM_EQ];
+        int err;
+        int i;
+
+        if (msi_x) {
+                for (i = 0; i < MLX4_NUM_EQ; ++i)
+                        entries[i].entry = i;
+
+                err = pci_enable_msix(dev->pdev, entries, ARRAY_SIZE(entries));
+                if (err) {
+                        if (err > 0)
+                                mlx4_info(dev, "Only %d MSI-X vectors available, "
+                                          "not using MSI-X\n", err);
+                        goto no_msi;
+                }
+
+                for (i = 0; i < MLX4_NUM_EQ; ++i)
+                        priv->eq_table.eq[i].irq = entries[i].vector;
+
+                dev->flags |= MLX4_FLAG_MSI_X;
+                return;
+        }
+
+no_msi:
+        for (i = 0; i < MLX4_NUM_EQ; ++i)
+                priv->eq_table.eq[i].irq = dev->pdev->irq;
+}
+
+static int __devinit mlx4_init_one(struct pci_dev *pdev,
+                                   const struct pci_device_id *id)
+{
+        static int mlx4_version_printed;
+        struct mlx4_priv *priv;
+        struct mlx4_dev *dev;
+        int err;
+
+        if (!mlx4_version_printed) {
+                printk(KERN_INFO "%s", mlx4_version);
+                ++mlx4_version_printed;
+        }
+
+        printk(KERN_INFO PFX "Initializing %s\n",
+               pci_name(pdev));
+
+        err = pci_enable_device(pdev);
+        if (err) {
+                dev_err(&pdev->dev, "Cannot enable PCI device, "
+                        "aborting.\n");
+                return err;
+        }
+
+        /*
+         * Check for BARs.  We expect 0: 1MB, 2: 8MB, 4: DDR (may not
+         * be present)
+         */
+        if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM) ||
+            pci_resource_len(pdev, 0) != 1 << 20) {
+                dev_err(&pdev->dev, "Missing DCS, aborting.\n");
+                err = -ENODEV;
+                goto err_disable_pdev;
+        }
+        if (!(pci_resource_flags(pdev, 2) & IORESOURCE_MEM)) {
+                dev_err(&pdev->dev, "Missing UAR, aborting.\n");
+                err = -ENODEV;
+                goto err_disable_pdev;
+        }
+
+        err = pci_request_region(pdev, 0, DRV_NAME);
+        if (err) {
+                dev_err(&pdev->dev, "Cannot request control region, aborting.\n");
+                goto err_disable_pdev;
+        }
+
+        err = pci_request_region(pdev, 2, DRV_NAME);
+        if (err) {
+                dev_err(&pdev->dev, "Cannot request UAR region, aborting.\n");
+                goto err_release_bar0;
+        }
+
+        pci_set_master(pdev);
+
+        err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+        if (err) {
+                dev_warn(&pdev->dev, "Warning: couldn't set 64-bit PCI DMA mask.\n");
+                err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+                if (err) {
+                        dev_err(&pdev->dev, "Can't set PCI DMA mask, aborting.\n");
+                        goto err_release_bar2;
+                }
+        }
+        err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+        if (err) {
+                dev_warn(&pdev->dev, "Warning: couldn't set 64-bit "
+                         "consistent PCI DMA mask.\n");
+                err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+                if (err) {
+                        dev_err(&pdev->dev, "Can't set consistent PCI DMA mask, "
+                                "aborting.\n");
+                        goto err_release_bar2;
+                }
+        }
+
+        priv = kzalloc(sizeof *priv, GFP_KERNEL);
+        if (!priv) {
+                dev_err(&pdev->dev, "Device struct alloc failed, "
+                        "aborting.\n");
+                err = -ENOMEM;
+                goto err_release_bar2;
+        }
+
+        dev       = &priv->dev;
+        dev->pdev = pdev;
+
+        /*
+         * Now reset the HCA before we touch the PCI capabilities or
+         * attempt a firmware command, since a boot ROM may have left
+         * the HCA in an undefined state.
+         */
+        err = mlx4_reset(dev);
+        if (err) {
+                mlx4_err(dev, "Failed to reset HCA, aborting.\n");
+                goto err_free_dev;
+        }
+
+        mlx4_enable_msi_x(dev);
+
+        if (mlx4_cmd_init(dev)) {
+                mlx4_err(dev, "Failed to init command interface, aborting.\n");
+                goto err_free_dev;
+        }
+
+        err = mlx4_init_hca(dev);
+        if (err)
+                goto err_cmd;
+
+        err = mlx4_setup_hca(dev);
+        if (err)
+                goto err_close;
+
+        err = mlx4_register_device(dev);
+        if (err)
+                goto err_cleanup;
+
+        pci_set_drvdata(pdev, dev);
+
+        return 0;
+
+err_cleanup:
+        mlx4_cleanup_mcg_table(dev);
+        mlx4_cleanup_qp_table(dev);
+        mlx4_cleanup_srq_table(dev);
+        mlx4_cleanup_cq_table(dev);
+        mlx4_cmd_use_polling(dev);
+        mlx4_cleanup_eq_table(dev);
+
+        mlx4_unmap_catas_buf(dev);
+
+        mlx4_cleanup_mr_table(dev);
+        mlx4_cleanup_pd_table(dev);
+        mlx4_cleanup_uar_table(dev);
+
+err_close:
+        mlx4_close_hca(dev);
+
+err_cmd:
+        mlx4_cmd_cleanup(dev);
+
+err_free_dev:
+        if (dev->flags & MLX4_FLAG_MSI_X)
+                pci_disable_msix(pdev);
+
+        kfree(priv);
+
+err_release_bar2:
+        pci_release_region(pdev, 2);
+
+err_release_bar0:
+        pci_release_region(pdev, 0);
+
+err_disable_pdev:
+        pci_disable_device(pdev);
+        pci_set_drvdata(pdev, NULL);
+        return err;
+}
+
+static void __devexit mlx4_remove_one(struct pci_dev *pdev)
+{
+        struct mlx4_dev  *dev  = pci_get_drvdata(pdev);
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int p;
+
+        if (dev) {
+                mlx4_unregister_device(dev);
+
+                for (p = 1; p <= dev->caps.num_ports; ++p)
+                        mlx4_CLOSE_PORT(dev, p);
+
+                mlx4_cleanup_mcg_table(dev);
+                mlx4_cleanup_qp_table(dev);
+                mlx4_cleanup_srq_table(dev);
+                mlx4_cleanup_cq_table(dev);
+                mlx4_cmd_use_polling(dev);
+                mlx4_cleanup_eq_table(dev);
+
+                mlx4_unmap_catas_buf(dev);
+
+                mlx4_cleanup_mr_table(dev);
+                mlx4_cleanup_pd_table(dev);
+
+                iounmap(priv->kar);
+                mlx4_uar_free(dev, &priv->driver_uar);
+                mlx4_cleanup_uar_table(dev);
+                mlx4_close_hca(dev);
+                mlx4_cmd_cleanup(dev);
+
+                if (dev->flags & MLX4_FLAG_MSI_X)
+                        pci_disable_msix(pdev);
+
+                kfree(priv);
+                pci_release_region(pdev, 2);
+                pci_release_region(pdev, 0);
+                pci_disable_device(pdev);
+                pci_set_drvdata(pdev, NULL);
+        }
+}
+
+static struct pci_device_id mlx4_pci_table[] = {
+        { PCI_VDEVICE(MELLANOX, 0x6340) }, /* MT25408 "Hermon" SDR */
+        { PCI_VDEVICE(MELLANOX, 0x634a) }, /* MT25408 "Hermon" DDR */
+        { PCI_VDEVICE(MELLANOX, 0x6354) }, /* MT25408 "Hermon" QDR */
+        { 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, mlx4_pci_table);
+
+static struct pci_driver mlx4_driver = {
+        .name           = DRV_NAME,
+        .id_table       = mlx4_pci_table,
+        .probe          = mlx4_init_one,
+        .remove         = __devexit_p(mlx4_remove_one)
+};
+
+static int __init mlx4_init(void)
+{
+        int ret;
+
+        ret = pci_register_driver(&mlx4_driver);
+        return ret < 0 ? ret : 0;
+}
+
+static void __exit mlx4_cleanup(void)
+{
+        pci_unregister_driver(&mlx4_driver);
+}
+
+module_init(mlx4_init);
+module_exit(mlx4_cleanup);
diff --git a/drivers/net/mlx4/mcg.c b/drivers/net/mlx4/mcg.c
new file mode 100644
index 000000000000..672024a0ee71
--- /dev/null
+++ b/drivers/net/mlx4/mcg.c
@@ -0,0 +1,380 @@
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+
+struct mlx4_mgm {
+        __be32                  next_gid_index;
+        __be32                  members_count;
+        u32                     reserved[2];
+        u8                      gid[16];
+        __be32                  qp[MLX4_QP_PER_MGM];
+};
+
+static const u8 zero_gid[16];   /* automatically initialized to 0 */
+
+static int mlx4_READ_MCG(struct mlx4_dev *dev, int index,
+                         struct mlx4_cmd_mailbox *mailbox)
+{
+        return mlx4_cmd_box(dev, 0, mailbox->dma, index, 0, MLX4_CMD_READ_MCG,
+                            MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_WRITE_MCG(struct mlx4_dev *dev, int index,
+                          struct mlx4_cmd_mailbox *mailbox)
+{
+        return mlx4_cmd(dev, mailbox->dma, index, 0, MLX4_CMD_WRITE_MCG,
+                        MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_MGID_HASH(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                          u16 *hash)
+{
+        u64 imm;
+        int err;
+
+        err = mlx4_cmd_imm(dev, mailbox->dma, &imm, 0, 0, MLX4_CMD_MGID_HASH,
+                           MLX4_CMD_TIME_CLASS_A);
+
+        if (!err)
+                *hash = imm;
+
+        return err;
+}
+
+/*
+ * Caller must hold MCG table semaphore.  gid and mgm parameters must
+ * be properly aligned for command interface.
+ *
+ *  Returns 0 unless a firmware command error occurs.
+ *
+ * If GID is found in MGM or MGM is empty, *index = *hash, *prev = -1
+ * and *mgm holds MGM entry.
+ *
+ * if GID is found in AMGM, *index = index in AMGM, *prev = index of
+ * previous entry in hash chain and *mgm holds AMGM entry.
+ *
+ * If no AMGM exists for given gid, *index = -1, *prev = index of last
+ * entry in hash chain and *mgm holds end of hash chain.
+ */
+static int find_mgm(struct mlx4_dev *dev,
+                    u8 *gid, struct mlx4_cmd_mailbox *mgm_mailbox,
+                    u16 *hash, int *prev, int *index)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        struct mlx4_mgm *mgm = mgm_mailbox->buf;
+        u8 *mgid;
+        int err;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return -ENOMEM;
+        mgid = mailbox->buf;
+
+        memcpy(mgid, gid, 16);
+
+        err = mlx4_MGID_HASH(dev, mailbox, hash);
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        if (err)
+                return err;
+
+        if (0)
+                mlx4_dbg(dev, "Hash for %04x:%04x:%04x:%04x:"
+                          "%04x:%04x:%04x:%04x is %04x\n",
+                          be16_to_cpu(((__be16 *) gid)[0]),
+                          be16_to_cpu(((__be16 *) gid)[1]),
+                          be16_to_cpu(((__be16 *) gid)[2]),
+                          be16_to_cpu(((__be16 *) gid)[3]),
+                          be16_to_cpu(((__be16 *) gid)[4]),
+                          be16_to_cpu(((__be16 *) gid)[5]),
+                          be16_to_cpu(((__be16 *) gid)[6]),
+                          be16_to_cpu(((__be16 *) gid)[7]),
+                          *hash);
+
+        *index = *hash;
+        *prev  = -1;
+
+        do {
+                err = mlx4_READ_MCG(dev, *index, mgm_mailbox);
+                if (err)
+                        return err;
+
+                if (!memcmp(mgm->gid, zero_gid, 16)) {
+                        if (*index != *hash) {
+                                mlx4_err(dev, "Found zero MGID in AMGM.\n");
+                                err = -EINVAL;
+                        }
+                        return err;
+                }
+
+                if (!memcmp(mgm->gid, gid, 16))
+                        return err;
+
+                *prev = *index;
+                *index = be32_to_cpu(mgm->next_gid_index) >> 6;
+        } while (*index);
+
+        *index = -1;
+        return err;
+}
+
+int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_cmd_mailbox *mailbox;
+        struct mlx4_mgm *mgm;
+        u32 members_count;
+        u16 hash;
+        int index, prev;
+        int link = 0;
+        int i;
+        int err;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        mgm = mailbox->buf;
+
+        mutex_lock(&priv->mcg_table.mutex);
+
+        err = find_mgm(dev, gid, mailbox, &hash, &prev, &index);
+        if (err)
+                goto out;
+
+        if (index != -1) {
+                if (!memcmp(mgm->gid, zero_gid, 16))
+                        memcpy(mgm->gid, gid, 16);
+        } else {
+                link = 1;
+
+                index = mlx4_bitmap_alloc(&priv->mcg_table.bitmap);
+                if (index == -1) {
+                        mlx4_err(dev, "No AMGM entries left\n");
+                        err = -ENOMEM;
+                        goto out;
+                }
+                index += dev->caps.num_mgms;
+
+                err = mlx4_READ_MCG(dev, index, mailbox);
+                if (err)
+                        goto out;
+
+                memset(mgm, 0, sizeof *mgm);
+                memcpy(mgm->gid, gid, 16);
+        }
+
+        members_count = be32_to_cpu(mgm->members_count);
+        if (members_count == MLX4_QP_PER_MGM) {
+                mlx4_err(dev, "MGM at index %x is full.\n", index);
+                err = -ENOMEM;
+                goto out;
+        }
+
+        for (i = 0; i < members_count; ++i)
+                if (mgm->qp[i] == cpu_to_be32(qp->qpn)) {
+                        mlx4_dbg(dev, "QP %06x already a member of MGM\n", qp->qpn);
+                        err = 0;
+                        goto out;
+                }
+
+        mgm->qp[members_count++] = cpu_to_be32(qp->qpn);
+        mgm->members_count       = cpu_to_be32(members_count);
+
+        err = mlx4_WRITE_MCG(dev, index, mailbox);
+        if (err)
+                goto out;
+
+        if (!link)
+                goto out;
+
+        err = mlx4_READ_MCG(dev, prev, mailbox);
+        if (err)
+                goto out;
+
+        mgm->next_gid_index = cpu_to_be32(index << 6);
+
+        err = mlx4_WRITE_MCG(dev, prev, mailbox);
+        if (err)
+                goto out;
+
+out:
+        if (err && link && index != -1) {
+                if (index < dev->caps.num_mgms)
+                        mlx4_warn(dev, "Got AMGM index %d < %d",
+                                  index, dev->caps.num_mgms);
+                else
+                        mlx4_bitmap_free(&priv->mcg_table.bitmap,
+                                         index - dev->caps.num_mgms);
+        }
+        mutex_unlock(&priv->mcg_table.mutex);
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_attach);
+
+int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16])
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_cmd_mailbox *mailbox;
+        struct mlx4_mgm *mgm;
+        u32 members_count;
+        u16 hash;
+        int prev, index;
+        int i, loc;
+        int err;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+        mgm = mailbox->buf;
+
+        mutex_lock(&priv->mcg_table.mutex);
+
+        err = find_mgm(dev, gid, mailbox, &hash, &prev, &index);
+        if (err)
+                goto out;
+
+        if (index == -1) {
+                mlx4_err(dev, "MGID %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x "
+                          "not found\n",
+                          be16_to_cpu(((__be16 *) gid)[0]),
+                          be16_to_cpu(((__be16 *) gid)[1]),
+                          be16_to_cpu(((__be16 *) gid)[2]),
+                          be16_to_cpu(((__be16 *) gid)[3]),
+                          be16_to_cpu(((__be16 *) gid)[4]),
+                          be16_to_cpu(((__be16 *) gid)[5]),
+                          be16_to_cpu(((__be16 *) gid)[6]),
+                          be16_to_cpu(((__be16 *) gid)[7]));
+                err = -EINVAL;
+                goto out;
+        }
+
+        members_count = be32_to_cpu(mgm->members_count);
+        for (loc = -1, i = 0; i < members_count; ++i)
+                if (mgm->qp[i] == cpu_to_be32(qp->qpn))
+                        loc = i;
+
+        if (loc == -1) {
+                mlx4_err(dev, "QP %06x not found in MGM\n", qp->qpn);
+                err = -EINVAL;
+                goto out;
+        }
+
+
+        mgm->members_count = cpu_to_be32(--members_count);
+        mgm->qp[loc]       = mgm->qp[i - 1];
+        mgm->qp[i - 1]     = 0;
+
+        err = mlx4_WRITE_MCG(dev, index, mailbox);
+        if (err)
+                goto out;
+
+        if (i != 1)
+                goto out;
+
+        if (prev == -1) {
+                /* Remove entry from MGM */
+                int amgm_index = be32_to_cpu(mgm->next_gid_index) >> 6;
+                if (amgm_index) {
+                        err = mlx4_READ_MCG(dev, amgm_index, mailbox);
+                        if (err)
+                                goto out;
+                } else
+                        memset(mgm->gid, 0, 16);
+
+                err = mlx4_WRITE_MCG(dev, index, mailbox);
+                if (err)
+                        goto out;
+
+                if (amgm_index) {
+                        if (amgm_index < dev->caps.num_mgms)
+                                mlx4_warn(dev, "MGM entry %d had AMGM index %d < %d",
+                                          index, amgm_index, dev->caps.num_mgms);
+                        else
+                                mlx4_bitmap_free(&priv->mcg_table.bitmap,
+                                                 amgm_index - dev->caps.num_mgms);
+                }
+        } else {
+                /* Remove entry from AMGM */
+                int cur_next_index = be32_to_cpu(mgm->next_gid_index) >> 6;
+                err = mlx4_READ_MCG(dev, prev, mailbox);
+                if (err)
+                        goto out;
+
+                mgm->next_gid_index = cpu_to_be32(cur_next_index << 6);
+
+                err = mlx4_WRITE_MCG(dev, prev, mailbox);
+                if (err)
+                        goto out;
+
+                if (index < dev->caps.num_mgms)
+                        mlx4_warn(dev, "entry %d had next AMGM index %d < %d",
+                                  prev, index, dev->caps.num_mgms);
+                else
+                        mlx4_bitmap_free(&priv->mcg_table.bitmap,
+                                         index - dev->caps.num_mgms);
+        }
+
+out:
+        mutex_unlock(&priv->mcg_table.mutex);
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_multicast_detach);
+
+int __devinit mlx4_init_mcg_table(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int err;
+
+        err = mlx4_bitmap_init(&priv->mcg_table.bitmap,
+                               dev->caps.num_amgms, dev->caps.num_amgms - 1, 0);
+        if (err)
+                return err;
+
+        mutex_init(&priv->mcg_table.mutex);
+
+        return 0;
+}
+
+void mlx4_cleanup_mcg_table(struct mlx4_dev *dev)
+{
+        mlx4_bitmap_cleanup(&mlx4_priv(dev)->mcg_table.bitmap);
+}
diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h
new file mode 100644
index 000000000000..9befbae3d196
--- /dev/null
+++ b/drivers/net/mlx4/mlx4.h
@@ -0,0 +1,348 @@
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef MLX4_H
+#define MLX4_H
+
+#include <linux/radix-tree.h>
+
+#include <linux/mlx4/device.h>
+#include <linux/mlx4/doorbell.h>
+
+#define DRV_NAME        "mlx4_core"
+#define PFX             DRV_NAME ": "
+#define DRV_VERSION     "0.01"
+#define DRV_RELDATE     "May 1, 2007"
+
+enum {
+        MLX4_HCR_BASE           = 0x80680,
+        MLX4_HCR_SIZE           = 0x0001c,
+        MLX4_CLR_INT_SIZE       = 0x00008
+};
+
+enum {
+        MLX4_BOARD_ID_LEN       = 64
+};
+
+enum {
+        MLX4_MGM_ENTRY_SIZE     =  0x40,
+        MLX4_QP_PER_MGM         = 4 * (MLX4_MGM_ENTRY_SIZE / 16 - 2),
+        MLX4_MTT_ENTRY_PER_SEG  = 8
+};
+
+enum {
+        MLX4_EQ_ASYNC,
+        MLX4_EQ_COMP,
+        MLX4_EQ_CATAS,
+        MLX4_NUM_EQ
+};
+
+enum {
+        MLX4_NUM_PDS            = 1 << 15
+};
+
+enum {
+        MLX4_CMPT_TYPE_QP       = 0,
+        MLX4_CMPT_TYPE_SRQ      = 1,
+        MLX4_CMPT_TYPE_CQ       = 2,
+        MLX4_CMPT_TYPE_EQ       = 3,
+        MLX4_CMPT_NUM_TYPE
+};
+
+enum {
+        MLX4_CMPT_SHIFT         = 24,
+        MLX4_NUM_CMPTS          = MLX4_CMPT_NUM_TYPE << MLX4_CMPT_SHIFT
+};
+
+#ifdef CONFIG_MLX4_DEBUG
+extern int mlx4_debug_level;
+
+#define mlx4_dbg(mdev, format, arg...)                                  \
+        do {                                                            \
+                if (mlx4_debug_level)                                   \
+                        dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ## arg); \
+        } while (0)
+
+#else /* CONFIG_MLX4_DEBUG */
+
+#define mlx4_dbg(mdev, format, arg...) do { (void) mdev; } while (0)
+
+#endif /* CONFIG_MLX4_DEBUG */
+
+#define mlx4_err(mdev, format, arg...) \
+        dev_err(&mdev->pdev->dev, format, ## arg)
+#define mlx4_info(mdev, format, arg...) \
+        dev_info(&mdev->pdev->dev, format, ## arg)
+#define mlx4_warn(mdev, format, arg...) \
+        dev_warn(&mdev->pdev->dev, format, ## arg)
+
+struct mlx4_bitmap {
+        u32                     last;
+        u32                     top;
+        u32                     max;
+        u32                     mask;
+        spinlock_t              lock;
+        unsigned long          *table;
+};
+
+struct mlx4_buddy {
+        unsigned long         **bits;
+        int                     max_order;
+        spinlock_t              lock;
+};
+
+struct mlx4_icm;
+
+struct mlx4_icm_table {
+        u64                     virt;
+        int                     num_icm;
+        int                     num_obj;
+        int                     obj_size;
+        int                     lowmem;
+        struct mutex            mutex;
+        struct mlx4_icm       **icm;
+};
+
+struct mlx4_eq {
+        struct mlx4_dev        *dev;
+        void __iomem           *doorbell;
+        int                     eqn;
+        u32                     cons_index;
+        u16                     irq;
+        u16                     have_irq;
+        int                     nent;
+        struct mlx4_buf_list   *page_list;
+        struct mlx4_mtt         mtt;
+};
+
+struct mlx4_profile {
+        int                     num_qp;
+        int                     rdmarc_per_qp;
+        int                     num_srq;
+        int                     num_cq;
+        int                     num_mcg;
+        int                     num_mpt;
+        int                     num_mtt;
+};
+
+struct mlx4_fw {
+        u64                     clr_int_base;
+        u64                     catas_offset;
+        struct mlx4_icm        *fw_icm;
+        struct mlx4_icm        *aux_icm;
+        u32                     catas_size;
+        u16                     fw_pages;
+        u8                      clr_int_bar;
+        u8                      catas_bar;
+};
+
+struct mlx4_cmd {
+        struct pci_pool        *pool;
+        void __iomem           *hcr;
+        struct mutex            hcr_mutex;
+        struct semaphore        poll_sem;
+        struct semaphore        event_sem;
+        int                     max_cmds;
+        spinlock_t              context_lock;
+        int                     free_head;
+        struct mlx4_cmd_context *context;
+        u16                     token_mask;
+        u8                      use_events;
+        u8                      toggle;
+};
+
+struct mlx4_uar_table {
+        struct mlx4_bitmap      bitmap;
+};
+
+struct mlx4_mr_table {
+        struct mlx4_bitmap      mpt_bitmap;
+        struct mlx4_buddy       mtt_buddy;
+        u64                     mtt_base;
+        u64                     mpt_base;
+        struct mlx4_icm_table   mtt_table;
+        struct mlx4_icm_table   dmpt_table;
+};
+
+struct mlx4_cq_table {
+        struct mlx4_bitmap      bitmap;
+        spinlock_t              lock;
+        struct radix_tree_root  tree;
+        struct mlx4_icm_table   table;
+        struct mlx4_icm_table   cmpt_table;
+};
+
+struct mlx4_eq_table {
+        struct mlx4_bitmap      bitmap;
+        void __iomem           *clr_int;
+        void __iomem           *uar_map[(MLX4_NUM_EQ + 6) / 4];
+        u32                     clr_mask;
+        struct mlx4_eq          eq[MLX4_NUM_EQ];
+        u64                     icm_virt;
+        struct page            *icm_page;
+        dma_addr_t              icm_dma;
+        struct mlx4_icm_table   cmpt_table;
+        int                     have_irq;
+        u8                      inta_pin;
+};
+
+struct mlx4_srq_table {
+        struct mlx4_bitmap      bitmap;
+        spinlock_t              lock;
+        struct radix_tree_root  tree;
+        struct mlx4_icm_table   table;
+        struct mlx4_icm_table   cmpt_table;
+};
+
+struct mlx4_qp_table {
+        struct mlx4_bitmap      bitmap;
+        u32                     rdmarc_base;
+        int                     rdmarc_shift;
+        spinlock_t              lock;
+        struct mlx4_icm_table   qp_table;
+        struct mlx4_icm_table   auxc_table;
+        struct mlx4_icm_table   altc_table;
+        struct mlx4_icm_table   rdmarc_table;
+        struct mlx4_icm_table   cmpt_table;
+};
+
+struct mlx4_mcg_table {
+        struct mutex            mutex;
+        struct mlx4_bitmap      bitmap;
+        struct mlx4_icm_table   table;
+};
+
+struct mlx4_catas_err {
+        u32 __iomem            *map;
+        int                     size;
+};
+
+struct mlx4_priv {
+        struct mlx4_dev         dev;
+
+        struct list_head        dev_list;
+        struct list_head        ctx_list;
+        spinlock_t              ctx_lock;
+
+        struct mlx4_fw          fw;
+        struct mlx4_cmd         cmd;
+
+        struct mlx4_bitmap      pd_bitmap;
+        struct mlx4_uar_table   uar_table;
+        struct mlx4_mr_table    mr_table;
+        struct mlx4_cq_table    cq_table;
+        struct mlx4_eq_table    eq_table;
+        struct mlx4_srq_table   srq_table;
+        struct mlx4_qp_table    qp_table;
+        struct mlx4_mcg_table   mcg_table;
+
+        struct mlx4_catas_err   catas_err;
+
+        void __iomem           *clr_base;
+
+        struct mlx4_uar         driver_uar;
+        void __iomem           *kar;
+        MLX4_DECLARE_DOORBELL_LOCK(doorbell_lock)
+
+        u32                     rev_id;
+        char                    board_id[MLX4_BOARD_ID_LEN];
+};
+
+static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
+{
+        return container_of(dev, struct mlx4_priv, dev);
+}
+
+u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
+void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
+int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask, u32 reserved);
+void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap);
+
+int mlx4_reset(struct mlx4_dev *dev);
+
+int mlx4_init_pd_table(struct mlx4_dev *dev);
+int mlx4_init_uar_table(struct mlx4_dev *dev);
+int mlx4_init_mr_table(struct mlx4_dev *dev);
+int mlx4_init_eq_table(struct mlx4_dev *dev);
+int mlx4_init_cq_table(struct mlx4_dev *dev);
+int mlx4_init_qp_table(struct mlx4_dev *dev);
+int mlx4_init_srq_table(struct mlx4_dev *dev);
+int mlx4_init_mcg_table(struct mlx4_dev *dev);
+
+void mlx4_cleanup_pd_table(struct mlx4_dev *dev);
+void mlx4_cleanup_uar_table(struct mlx4_dev *dev);
+void mlx4_cleanup_mr_table(struct mlx4_dev *dev);
+void mlx4_cleanup_eq_table(struct mlx4_dev *dev);
+void mlx4_cleanup_cq_table(struct mlx4_dev *dev);
+void mlx4_cleanup_qp_table(struct mlx4_dev *dev);
+void mlx4_cleanup_srq_table(struct mlx4_dev *dev);
+void mlx4_cleanup_mcg_table(struct mlx4_dev *dev);
+
+void mlx4_map_catas_buf(struct mlx4_dev *dev);
+void mlx4_unmap_catas_buf(struct mlx4_dev *dev);
+
+int mlx4_register_device(struct mlx4_dev *dev);
+void mlx4_unregister_device(struct mlx4_dev *dev);
+void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_event type,
+                         int subtype, int port);
+
+struct mlx4_dev_cap;
+struct mlx4_init_hca_param;
+
+u64 mlx4_make_profile(struct mlx4_dev *dev,
+                      struct mlx4_profile *request,
+                      struct mlx4_dev_cap *dev_cap,
+                      struct mlx4_init_hca_param *init_hca);
+
+int mlx4_map_eq_icm(struct mlx4_dev *dev, u64 icm_virt);
+void mlx4_unmap_eq_icm(struct mlx4_dev *dev);
+
+int mlx4_cmd_init(struct mlx4_dev *dev);
+void mlx4_cmd_cleanup(struct mlx4_dev *dev);
+void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param);
+int mlx4_cmd_use_events(struct mlx4_dev *dev);
+void mlx4_cmd_use_polling(struct mlx4_dev *dev);
+
+void mlx4_cq_completion(struct mlx4_dev *dev, u32 cqn);
+void mlx4_cq_event(struct mlx4_dev *dev, u32 cqn, int event_type);
+
+void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type);
+
+void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
+
+void mlx4_handle_catas_err(struct mlx4_dev *dev);
+
+#endif /* MLX4_H */
diff --git a/drivers/net/mlx4/mr.c b/drivers/net/mlx4/mr.c
new file mode 100644
index 000000000000..b33864dab179
--- /dev/null
+++ b/drivers/net/mlx4/mr.c
@@ -0,0 +1,479 @@
+/*
+ * Copyright (c) 2004 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+/*
+ * Must be packed because mtt_seg is 64 bits but only aligned to 32 bits.
+ */
+struct mlx4_mpt_entry {
+        __be32 flags;
+        __be32 qpn;
+        __be32 key;
+        __be32 pd;
+        __be64 start;
+        __be64 length;
+        __be32 lkey;
+        __be32 win_cnt;
+        u8      reserved1[3];
+        u8      mtt_rep;
+        __be64 mtt_seg;
+        __be32 mtt_sz;
+        __be32 entity_size;
+        __be32 first_byte_offset;
+} __attribute__((packed));
+
+#define MLX4_MPT_FLAG_SW_OWNS       (0xfUL << 28)
+#define MLX4_MPT_FLAG_MIO           (1 << 17)
+#define MLX4_MPT_FLAG_BIND_ENABLE   (1 << 15)
+#define MLX4_MPT_FLAG_PHYSICAL      (1 <<  9)
+#define MLX4_MPT_FLAG_REGION        (1 <<  8)
+
+#define MLX4_MTT_FLAG_PRESENT           1
+
+static u32 mlx4_buddy_alloc(struct mlx4_buddy *buddy, int order)
+{
+        int o;
+        int m;
+        u32 seg;
+
+        spin_lock(&buddy->lock);
+
+        for (o = order; o <= buddy->max_order; ++o) {
+                m = 1 << (buddy->max_order - o);
+                seg = find_first_bit(buddy->bits[o], m);
+                if (seg < m)
+                        goto found;
+        }
+
+        spin_unlock(&buddy->lock);
+        return -1;
+
+ found:
+        clear_bit(seg, buddy->bits[o]);
+
+        while (o > order) {
+                --o;
+                seg <<= 1;
+                set_bit(seg ^ 1, buddy->bits[o]);
+        }
+
+        spin_unlock(&buddy->lock);
+
+        seg <<= order;
+
+        return seg;
+}
+
+static void mlx4_buddy_free(struct mlx4_buddy *buddy, u32 seg, int order)
+{
+        seg >>= order;
+
+        spin_lock(&buddy->lock);
+
+        while (test_bit(seg ^ 1, buddy->bits[order])) {
+                clear_bit(seg ^ 1, buddy->bits[order]);
+                seg >>= 1;
+                ++order;
+        }
+
+        set_bit(seg, buddy->bits[order]);
+
+        spin_unlock(&buddy->lock);
+}
+
+static int __devinit mlx4_buddy_init(struct mlx4_buddy *buddy, int max_order)
+{
+        int i, s;
+
+        buddy->max_order = max_order;
+        spin_lock_init(&buddy->lock);
+
+        buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *),
+                              GFP_KERNEL);
+        if (!buddy->bits)
+                goto err_out;
+
+        for (i = 0; i <= buddy->max_order; ++i) {
+                s = BITS_TO_LONGS(1 << (buddy->max_order - i));
+                buddy->bits[i] = kmalloc(s * sizeof (long), GFP_KERNEL);
+                if (!buddy->bits[i])
+                        goto err_out_free;
+                bitmap_zero(buddy->bits[i], 1 << (buddy->max_order - i));
+        }
+
+        set_bit(0, buddy->bits[buddy->max_order]);
+
+        return 0;
+
+err_out_free:
+        for (i = 0; i <= buddy->max_order; ++i)
+                kfree(buddy->bits[i]);
+
+        kfree(buddy->bits);
+
+err_out:
+        return -ENOMEM;
+}
+
+static void mlx4_buddy_cleanup(struct mlx4_buddy *buddy)
+{
+        int i;
+
+        for (i = 0; i <= buddy->max_order; ++i)
+                kfree(buddy->bits[i]);
+
+        kfree(buddy->bits);
+}
+
+static u32 mlx4_alloc_mtt_range(struct mlx4_dev *dev, int order)
+{
+        struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+        u32 seg;
+
+        seg = mlx4_buddy_alloc(&mr_table->mtt_buddy, order);
+        if (seg == -1)
+                return -1;
+
+        if (mlx4_table_get_range(dev, &mr_table->mtt_table, seg,
+                                 seg + (1 << order) - 1)) {
+                mlx4_buddy_free(&mr_table->mtt_buddy, seg, order);
+                return -1;
+        }
+
+        return seg;
+}
+
+int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
+                  struct mlx4_mtt *mtt)
+{
+        int i;
+
+        if (!npages) {
+                mtt->order      = -1;
+                mtt->page_shift = MLX4_ICM_PAGE_SHIFT;
+                return 0;
+        } else
+                mtt->page_shift = page_shift;
+
+        for (mtt->order = 0, i = MLX4_MTT_ENTRY_PER_SEG; i < npages; i <<= 1)
+                ++mtt->order;
+
+        mtt->first_seg = mlx4_alloc_mtt_range(dev, mtt->order);
+        if (mtt->first_seg == -1)
+                return -ENOMEM;
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_mtt_init);
+
+void mlx4_mtt_cleanup(struct mlx4_dev *dev, struct mlx4_mtt *mtt)
+{
+        struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+
+        if (mtt->order < 0)
+                return;
+
+        mlx4_buddy_free(&mr_table->mtt_buddy, mtt->first_seg, mtt->order);
+        mlx4_table_put_range(dev, &mr_table->mtt_table, mtt->first_seg,
+                             mtt->first_seg + (1 << mtt->order) - 1);
+}
+EXPORT_SYMBOL_GPL(mlx4_mtt_cleanup);
+
+u64 mlx4_mtt_addr(struct mlx4_dev *dev, struct mlx4_mtt *mtt)
+{
+        return (u64) mtt->first_seg * dev->caps.mtt_entry_sz;
+}
+EXPORT_SYMBOL_GPL(mlx4_mtt_addr);
+
+static u32 hw_index_to_key(u32 ind)
+{
+        return (ind >> 24) | (ind << 8);
+}
+
+static u32 key_to_hw_index(u32 key)
+{
+        return (key << 24) | (key >> 8);
+}
+
+static int mlx4_SW2HW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                          int mpt_index)
+{
+        return mlx4_cmd(dev, mailbox->dma, mpt_index, 0, MLX4_CMD_SW2HW_MPT,
+                        MLX4_CMD_TIME_CLASS_B);
+}
+
+static int mlx4_HW2SW_MPT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                          int mpt_index)
+{
+        return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, mpt_index,
+                            !mailbox, MLX4_CMD_HW2SW_MPT, MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_mr_alloc(struct mlx4_dev *dev, u32 pd, u64 iova, u64 size, u32 access,
+                  int npages, int page_shift, struct mlx4_mr *mr)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        u32 index;
+        int err;
+
+        index = mlx4_bitmap_alloc(&priv->mr_table.mpt_bitmap);
+        if (index == -1) {
+                err = -ENOMEM;
+                goto err;
+        }
+
+        mr->iova       = iova;
+        mr->size       = size;
+        mr->pd         = pd;
+        mr->access     = access;
+        mr->enabled    = 0;
+        mr->key        = hw_index_to_key(index);
+
+        err = mlx4_mtt_init(dev, npages, page_shift, &mr->mtt);
+        if (err)
+                goto err_index;
+
+        return 0;
+
+err_index:
+        mlx4_bitmap_free(&priv->mr_table.mpt_bitmap, index);
+
+err:
+        kfree(mr);
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_mr_alloc);
+
+void mlx4_mr_free(struct mlx4_dev *dev, struct mlx4_mr *mr)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        int err;
+
+        if (mr->enabled) {
+                err = mlx4_HW2SW_MPT(dev, NULL,
+                                     key_to_hw_index(mr->key) &
+                                     (dev->caps.num_mpts - 1));
+                if (err)
+                        mlx4_warn(dev, "HW2SW_MPT failed (%d)\n", err);
+        }
+
+        mlx4_mtt_cleanup(dev, &mr->mtt);
+        mlx4_bitmap_free(&priv->mr_table.mpt_bitmap, key_to_hw_index(mr->key));
+}
+EXPORT_SYMBOL_GPL(mlx4_mr_free);
+
+int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr)
+{
+        struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+        struct mlx4_cmd_mailbox *mailbox;
+        struct mlx4_mpt_entry *mpt_entry;
+        int err;
+
+        err = mlx4_table_get(dev, &mr_table->dmpt_table, key_to_hw_index(mr->key));
+        if (err)
+                return err;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox)) {
+                err = PTR_ERR(mailbox);
+                goto err_table;
+        }
+        mpt_entry = mailbox->buf;
+
+        memset(mpt_entry, 0, sizeof *mpt_entry);
+
+        mpt_entry->flags = cpu_to_be32(MLX4_MPT_FLAG_SW_OWNS     |
+                                       MLX4_MPT_FLAG_MIO         |
+                                       MLX4_MPT_FLAG_REGION      |
+                                       mr->access);
+        if (mr->mtt.order < 0)
+                mpt_entry->flags |= cpu_to_be32(MLX4_MPT_FLAG_PHYSICAL);
+
+        mpt_entry->key         = cpu_to_be32(key_to_hw_index(mr->key));
+        mpt_entry->pd          = cpu_to_be32(mr->pd);
+        mpt_entry->start       = cpu_to_be64(mr->iova);
+        mpt_entry->length      = cpu_to_be64(mr->size);
+        mpt_entry->entity_size = cpu_to_be32(mr->mtt.page_shift);
+        mpt_entry->mtt_seg     = cpu_to_be64(mlx4_mtt_addr(dev, &mr->mtt));
+
+        err = mlx4_SW2HW_MPT(dev, mailbox,
+                             key_to_hw_index(mr->key) & (dev->caps.num_mpts - 1));
+        if (err) {
+                mlx4_warn(dev, "SW2HW_MPT failed (%d)\n", err);
+                goto err_cmd;
+        }
+
+        mr->enabled = 1;
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+
+        return 0;
+
+err_cmd:
+        mlx4_free_cmd_mailbox(dev, mailbox);
+
+err_table:
+        mlx4_table_put(dev, &mr_table->dmpt_table, key_to_hw_index(mr->key));
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_mr_enable);
+
+static int mlx4_WRITE_MTT(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                          int num_mtt)
+{
+        return mlx4_cmd(dev, mailbox->dma, num_mtt, 0, MLX4_CMD_WRITE_MTT,
+                        MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+                   int start_index, int npages, u64 *page_list)
+{
+        struct mlx4_cmd_mailbox *mailbox;
+        __be64 *mtt_entry;
+        int i;
+        int err = 0;
+
+        if (mtt->order < 0)
+                return -EINVAL;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+
+        mtt_entry = mailbox->buf;
+
+        while (npages > 0) {
+                mtt_entry[0] = cpu_to_be64(mlx4_mtt_addr(dev, mtt) + start_index * 8);
+                mtt_entry[1] = 0;
+
+                for (i = 0; i < npages && i < MLX4_MAILBOX_SIZE / 8 - 2; ++i)
+                        mtt_entry[i + 2] = cpu_to_be64(page_list[i] |
+                                                       MLX4_MTT_FLAG_PRESENT);
+
+                /*
+                 * If we have an odd number of entries to write, add
+                 * one more dummy entry for firmware efficiency.
+                 */
+                if (i & 1)
+                        mtt_entry[i + 2] = 0;
+
+                err = mlx4_WRITE_MTT(dev, mailbox, (i + 1) & ~1);
+                if (err)
+                        goto out;
+
+                npages      -= i;
+                start_index += i;
+                page_list   += i;
+        }
+
+out:
+        mlx4_free_cmd_mailbox(dev, mailbox);
+
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_write_mtt);
+
+int mlx4_buf_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+                       struct mlx4_buf *buf)
+{
+        u64 *page_list;
+        int err;
+        int i;
+
+        page_list = kmalloc(buf->npages * sizeof *page_list, GFP_KERNEL);
+        if (!page_list)
+                return -ENOMEM;
+
+        for (i = 0; i < buf->npages; ++i)
+                if (buf->nbufs == 1)
+                        page_list[i] = buf->u.direct.map + (i << buf->page_shift);
+                else
+                        page_list[i] = buf->u.page_list[i].map;
+
+        err = mlx4_write_mtt(dev, mtt, 0, buf->npages, page_list);
+
+        kfree(page_list);
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_buf_write_mtt);
+
+int __devinit mlx4_init_mr_table(struct mlx4_dev *dev)
+{
+        struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+        int err;
+
+        err = mlx4_bitmap_init(&mr_table->mpt_bitmap, dev->caps.num_mpts,
+                               ~0, dev->caps.reserved_mrws);
+        if (err)
+                return err;
+
+        err = mlx4_buddy_init(&mr_table->mtt_buddy,
+                              ilog2(dev->caps.num_mtt_segs));
+        if (err)
+                goto err_buddy;
+
+        if (dev->caps.reserved_mtts) {
+                if (mlx4_alloc_mtt_range(dev, ilog2(dev->caps.reserved_mtts)) == -1) {
+                        mlx4_warn(dev, "MTT table of order %d is too small.\n",
+                                  mr_table->mtt_buddy.max_order);
+                        err = -ENOMEM;
+                        goto err_reserve_mtts;
+                }
+        }
+
+        return 0;
+
+err_reserve_mtts:
+        mlx4_buddy_cleanup(&mr_table->mtt_buddy);
+
+err_buddy:
+        mlx4_bitmap_cleanup(&mr_table->mpt_bitmap);
+
+        return err;
+}
+
+void mlx4_cleanup_mr_table(struct mlx4_dev *dev)
+{
+        struct mlx4_mr_table *mr_table = &mlx4_priv(dev)->mr_table;
+
+        mlx4_buddy_cleanup(&mr_table->mtt_buddy);
+        mlx4_bitmap_cleanup(&mr_table->mpt_bitmap);
+}
diff --git a/drivers/net/mlx4/pd.c b/drivers/net/mlx4/pd.c
new file mode 100644
index 000000000000..23dea1ee7750
--- /dev/null
+++ b/drivers/net/mlx4/pd.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc.  All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+#include <linux/errno.h>
+
+#include <asm/page.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+int mlx4_pd_alloc(struct mlx4_dev *dev, u32 *pdn)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        *pdn = mlx4_bitmap_alloc(&priv->pd_bitmap);
+        if (*pdn == -1)
+                return -ENOMEM;
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_pd_alloc);
+
+void mlx4_pd_free(struct mlx4_dev *dev, u32 pdn)
+{
+        mlx4_bitmap_free(&mlx4_priv(dev)->pd_bitmap, pdn);
+}
+EXPORT_SYMBOL_GPL(mlx4_pd_free);
+
+int __devinit mlx4_init_pd_table(struct mlx4_dev *dev)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+
+        return mlx4_bitmap_init(&priv->pd_bitmap, dev->caps.num_pds,
+                                (1 << 24) - 1, dev->caps.reserved_pds);
+}
+
+void mlx4_cleanup_pd_table(struct mlx4_dev *dev)
+{
+        mlx4_bitmap_cleanup(&mlx4_priv(dev)->pd_bitmap);
+}
+
+
+int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar)
+{
+        uar->index = mlx4_bitmap_alloc(&mlx4_priv(dev)->uar_table.bitmap);
+        if (uar->index == -1)
+                return -ENOMEM;
+
+        uar->pfn = (pci_resource_start(dev->pdev, 2) >> PAGE_SHIFT) + uar->index;
+
+        return 0;
+}
+EXPORT_SYMBOL_GPL(mlx4_uar_alloc);
+
+void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar)
+{
+        mlx4_bitmap_free(&mlx4_priv(dev)->uar_table.bitmap, uar->index);
+}
+EXPORT_SYMBOL_GPL(mlx4_uar_free);
+
+int mlx4_init_uar_table(struct mlx4_dev *dev)
+{
+        return mlx4_bitmap_init(&mlx4_priv(dev)->uar_table.bitmap,
+                                dev->caps.num_uars, dev->caps.num_uars - 1,
+                                max(128, dev->caps.reserved_uars));
+}
+
+void mlx4_cleanup_uar_table(struct mlx4_dev *dev)
+{
+        mlx4_bitmap_cleanup(&mlx4_priv(dev)->uar_table.bitmap);
+}
diff --git a/drivers/net/mlx4/profile.c b/drivers/net/mlx4/profile.c
new file mode 100644
index 000000000000..9ca42b213d54
--- /dev/null
+++ b/drivers/net/mlx4/profile.c
@@ -0,0 +1,238 @@
+/*
+ * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+
+#include "mlx4.h"
+#include "fw.h"
+
+enum {
+        MLX4_RES_QP,
+        MLX4_RES_RDMARC,
+        MLX4_RES_ALTC,
+        MLX4_RES_AUXC,
+        MLX4_RES_SRQ,
+        MLX4_RES_CQ,
+        MLX4_RES_EQ,
+        MLX4_RES_DMPT,
+        MLX4_RES_CMPT,
+        MLX4_RES_MTT,
+        MLX4_RES_MCG,
+        MLX4_RES_NUM
+};
+
+static const char *res_name[] = {
+        [MLX4_RES_QP]           = "QP",
+        [MLX4_RES_RDMARC]       = "RDMARC",
+        [MLX4_RES_ALTC]         = "ALTC",
+        [MLX4_RES_AUXC]         = "AUXC",
+        [MLX4_RES_SRQ]          = "SRQ",
+        [MLX4_RES_CQ]           = "CQ",
+        [MLX4_RES_EQ]           = "EQ",
+        [MLX4_RES_DMPT]         = "DMPT",
+        [MLX4_RES_CMPT]         = "CMPT",
+        [MLX4_RES_MTT]          = "MTT",
+        [MLX4_RES_MCG]          = "MCG",
+};
+
+u64 mlx4_make_profile(struct mlx4_dev *dev,
+                      struct mlx4_profile *request,
+                      struct mlx4_dev_cap *dev_cap,
+                      struct mlx4_init_hca_param *init_hca)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_resource {
+                u64 size;
+                u64 start;
+                int type;
+                int num;
+                int log_num;
+        };
+
+        u64 total_size = 0;
+        struct mlx4_resource *profile;
+        struct mlx4_resource tmp;
+        int i, j;
+
+        profile = kzalloc(MLX4_RES_NUM * sizeof *profile, GFP_KERNEL);
+        if (!profile)
+                return -ENOMEM;
+
+        profile[MLX4_RES_QP].size     = dev_cap->qpc_entry_sz;
+        profile[MLX4_RES_RDMARC].size = dev_cap->rdmarc_entry_sz;
+        profile[MLX4_RES_ALTC].size   = dev_cap->altc_entry_sz;
+        profile[MLX4_RES_AUXC].size   = dev_cap->aux_entry_sz;
+        profile[MLX4_RES_SRQ].size    = dev_cap->srq_entry_sz;
+        profile[MLX4_RES_CQ].size     = dev_cap->cqc_entry_sz;
+        profile[MLX4_RES_EQ].size     = dev_cap->eqc_entry_sz;
+        profile[MLX4_RES_DMPT].size   = dev_cap->dmpt_entry_sz;
+        profile[MLX4_RES_CMPT].size   = dev_cap->cmpt_entry_sz;
+        profile[MLX4_RES_MTT].size    = MLX4_MTT_ENTRY_PER_SEG * dev_cap->mtt_entry_sz;
+        profile[MLX4_RES_MCG].size    = MLX4_MGM_ENTRY_SIZE;
+
+        profile[MLX4_RES_QP].num      = request->num_qp;
+        profile[MLX4_RES_RDMARC].num  = request->num_qp * request->rdmarc_per_qp;
+        profile[MLX4_RES_ALTC].num    = request->num_qp;
+        profile[MLX4_RES_AUXC].num    = request->num_qp;
+        profile[MLX4_RES_SRQ].num     = request->num_srq;
+        profile[MLX4_RES_CQ].num      = request->num_cq;
+        profile[MLX4_RES_EQ].num      = MLX4_NUM_EQ + dev_cap->reserved_eqs;
+        profile[MLX4_RES_DMPT].num    = request->num_mpt;
+        profile[MLX4_RES_CMPT].num    = MLX4_NUM_CMPTS;
+        profile[MLX4_RES_MTT].num     = request->num_mtt;
+        profile[MLX4_RES_MCG].num     = request->num_mcg;
+
+        for (i = 0; i < MLX4_RES_NUM; ++i) {
+                profile[i].type     = i;
+                profile[i].num      = roundup_pow_of_two(profile[i].num);
+                profile[i].log_num  = ilog2(profile[i].num);
+                profile[i].size    *= profile[i].num;
+                profile[i].size     = max(profile[i].size, (u64) PAGE_SIZE);
+        }
+
+        /*
+         * Sort the resources in decreasing order of size.  Since they
+         * all have sizes that are powers of 2, we'll be able to keep
+         * resources aligned to their size and pack them without gaps
+         * using the sorted order.
+         */
+        for (i = MLX4_RES_NUM; i > 0; --i)
+                for (j = 1; j < i; ++j) {
+                        if (profile[j].size > profile[j - 1].size) {
+                                tmp            = profile[j];
+                                profile[j]     = profile[j - 1];
+                                profile[j - 1] = tmp;
+                        }
+                }
+
+        for (i = 0; i < MLX4_RES_NUM; ++i) {
+                if (profile[i].size) {
+                        profile[i].start = total_size;
+                        total_size      += profile[i].size;
+                }
+
+                if (total_size > dev_cap->max_icm_sz) {
+                        mlx4_err(dev, "Profile requires 0x%llx bytes; "
+                                  "won't fit in 0x%llx bytes of context memory.\n",
+                                  (unsigned long long) total_size,
+                                  (unsigned long long) dev_cap->max_icm_sz);
+                        kfree(profile);
+                        return -ENOMEM;
+                }
+
+                if (profile[i].size)
+                        mlx4_dbg(dev, "  profile[%2d] (%6s): 2^%02d entries @ 0x%10llx, "
+                                  "size 0x%10llx\n",
+                                 i, res_name[profile[i].type], profile[i].log_num,
+                                 (unsigned long long) profile[i].start,
+                                 (unsigned long long) profile[i].size);
+        }
+
+        mlx4_dbg(dev, "HCA context memory: reserving %d KB\n",
+                 (int) (total_size >> 10));
+
+        for (i = 0; i < MLX4_RES_NUM; ++i) {
+                switch (profile[i].type) {
+                case MLX4_RES_QP:
+                        dev->caps.num_qps     = profile[i].num;
+                        init_hca->qpc_base    = profile[i].start;
+                        init_hca->log_num_qps = profile[i].log_num;
+                        break;
+                case MLX4_RES_RDMARC:
+                        for (priv->qp_table.rdmarc_shift = 0;
+                             request->num_qp << priv->qp_table.rdmarc_shift < profile[i].num;
+                             ++priv->qp_table.rdmarc_shift)
+                                ; /* nothing */
+                        dev->caps.max_qp_dest_rdma = 1 << priv->qp_table.rdmarc_shift;
+                        priv->qp_table.rdmarc_base   = (u32) profile[i].start;
+                        init_hca->rdmarc_base        = profile[i].start;
+                        init_hca->log_rd_per_qp      = priv->qp_table.rdmarc_shift;
+                        break;
+                case MLX4_RES_ALTC:
+                        init_hca->altc_base = profile[i].start;
+                        break;
+                case MLX4_RES_AUXC:
+                        init_hca->auxc_base = profile[i].start;
+                        break;
+                case MLX4_RES_SRQ:
+                        dev->caps.num_srqs     = profile[i].num;
+                        init_hca->srqc_base    = profile[i].start;
+                        init_hca->log_num_srqs = profile[i].log_num;
+                        break;
+                case MLX4_RES_CQ:
+                        dev->caps.num_cqs     = profile[i].num;
+                        init_hca->cqc_base    = profile[i].start;
+                        init_hca->log_num_cqs = profile[i].log_num;
+                        break;
+                case MLX4_RES_EQ:
+                        dev->caps.num_eqs     = profile[i].num;
+                        init_hca->eqc_base    = profile[i].start;
+                        init_hca->log_num_eqs = profile[i].log_num;
+                        break;
+                case MLX4_RES_DMPT:
+                        dev->caps.num_mpts      = profile[i].num;
+                        priv->mr_table.mpt_base = profile[i].start;
+                        init_hca->dmpt_base     = profile[i].start;
+                        init_hca->log_mpt_sz    = profile[i].log_num;
+                        break;
+                case MLX4_RES_CMPT:
+                        init_hca->cmpt_base      = profile[i].start;
+                        break;
+                case MLX4_RES_MTT:
+                        dev->caps.num_mtt_segs   = profile[i].num;
+                        priv->mr_table.mtt_base  = profile[i].start;
+                        init_hca->mtt_base       = profile[i].start;
+                        break;
+                case MLX4_RES_MCG:
+                        dev->caps.num_mgms        = profile[i].num >> 1;
+                        dev->caps.num_amgms       = profile[i].num >> 1;
+                        init_hca->mc_base         = profile[i].start;
+                        init_hca->log_mc_entry_sz = ilog2(MLX4_MGM_ENTRY_SIZE);
+                        init_hca->log_mc_table_sz = profile[i].log_num;
+                        init_hca->log_mc_hash_sz  = profile[i].log_num - 1;
+                        break;
+                default:
+                        break;
+                }
+        }
+
+        /*
+         * PDs don't take any HCA memory, but we assign them as part
+         * of the HCA profile anyway.
+         */
+        dev->caps.num_pds = MLX4_NUM_PDS;
+
+        kfree(profile);
+        return total_size;
+}
diff --git a/drivers/net/mlx4/qp.c b/drivers/net/mlx4/qp.c
new file mode 100644
index 000000000000..7f8b7d55b6e1
--- /dev/null
+++ b/drivers/net/mlx4/qp.c
@@ -0,0 +1,280 @@
+/*
+ * Copyright (c) 2004 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+
+#include <linux/mlx4/cmd.h>
+#include <linux/mlx4/qp.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type)
+{
+        struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
+        struct mlx4_qp *qp;
+
+        spin_lock(&qp_table->lock);
+
+        qp = __mlx4_qp_lookup(dev, qpn);
+        if (qp)
+                atomic_inc(&qp->refcount);
+
+        spin_unlock(&qp_table->lock);
+
+        if (!qp) {
+                mlx4_warn(dev, "Async event for bogus QP %08x\n", qpn);
+                return;
+        }
+
+        qp->event(qp, event_type);
+
+        if (atomic_dec_and_test(&qp->refcount))
+                complete(&qp->free);
+}
+
+int mlx4_qp_modify(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
+                   enum mlx4_qp_state cur_state, enum mlx4_qp_state new_state,
+                   struct mlx4_qp_context *context, enum mlx4_qp_optpar optpar,
+                   int sqd_event, struct mlx4_qp *qp)
+{
+        static const u16 op[MLX4_QP_NUM_STATE][MLX4_QP_NUM_STATE] = {
+                [MLX4_QP_STATE_RST] = {
+                        [MLX4_QP_STATE_RST]     = MLX4_CMD_2RST_QP,
+                        [MLX4_QP_STATE_ERR]     = MLX4_CMD_2ERR_QP,
+                        [MLX4_QP_STATE_INIT]    = MLX4_CMD_RST2INIT_QP,
+                },
+                [MLX4_QP_STATE_INIT]  = {
+                        [MLX4_QP_STATE_RST]     = MLX4_CMD_2RST_QP,
+                        [MLX4_QP_STATE_ERR]     = MLX4_CMD_2ERR_QP,
+                        [MLX4_QP_STATE_INIT]    = MLX4_CMD_INIT2INIT_QP,
+                        [MLX4_QP_STATE_RTR]     = MLX4_CMD_INIT2RTR_QP,
+                },
+                [MLX4_QP_STATE_RTR]   = {
+                        [MLX4_QP_STATE_RST]     = MLX4_CMD_2RST_QP,
+                        [MLX4_QP_STATE_ERR]     = MLX4_CMD_2ERR_QP,
+                        [MLX4_QP_STATE_RTS]     = MLX4_CMD_RTR2RTS_QP,
+                },
+                [MLX4_QP_STATE_RTS]   = {
+                        [MLX4_QP_STATE_RST]     = MLX4_CMD_2RST_QP,
+                        [MLX4_QP_STATE_ERR]     = MLX4_CMD_2ERR_QP,
+                        [MLX4_QP_STATE_RTS]     = MLX4_CMD_RTS2RTS_QP,
+                        [MLX4_QP_STATE_SQD]     = MLX4_CMD_RTS2SQD_QP,
+                },
+                [MLX4_QP_STATE_SQD] = {
+                        [MLX4_QP_STATE_RST]     = MLX4_CMD_2RST_QP,
+                        [MLX4_QP_STATE_ERR]     = MLX4_CMD_2ERR_QP,
+                        [MLX4_QP_STATE_RTS]     = MLX4_CMD_SQD2RTS_QP,
+                        [MLX4_QP_STATE_SQD]     = MLX4_CMD_SQD2SQD_QP,
+                },
+                [MLX4_QP_STATE_SQER] = {
+                        [MLX4_QP_STATE_RST]     = MLX4_CMD_2RST_QP,
+                        [MLX4_QP_STATE_ERR]     = MLX4_CMD_2ERR_QP,
+                        [MLX4_QP_STATE_RTS]     = MLX4_CMD_SQERR2RTS_QP,
+                },
+                [MLX4_QP_STATE_ERR] = {
+                        [MLX4_QP_STATE_RST]     = MLX4_CMD_2RST_QP,
+                        [MLX4_QP_STATE_ERR]     = MLX4_CMD_2ERR_QP,
+                }
+        };
+
+        struct mlx4_cmd_mailbox *mailbox;
+        int ret = 0;
+
+        if (cur_state < 0 || cur_state >= MLX4_QP_NUM_STATE ||
+            new_state < 0 || cur_state >= MLX4_QP_NUM_STATE ||
+            !op[cur_state][new_state])
+                return -EINVAL;
+
+        if (op[cur_state][new_state] == MLX4_CMD_2RST_QP)
+                return mlx4_cmd(dev, 0, qp->qpn, 2,
+                                MLX4_CMD_2RST_QP, MLX4_CMD_TIME_CLASS_A);
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox))
+                return PTR_ERR(mailbox);
+
+        if (cur_state == MLX4_QP_STATE_RST && new_state == MLX4_QP_STATE_INIT) {
+                u64 mtt_addr = mlx4_mtt_addr(dev, mtt);
+                context->mtt_base_addr_h = mtt_addr >> 32;
+                context->mtt_base_addr_l = cpu_to_be32(mtt_addr & 0xffffffff);
+                context->log_page_size   = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
+        }
+
+        *(__be32 *) mailbox->buf = cpu_to_be32(optpar);
+        memcpy(mailbox->buf + 8, context, sizeof *context);
+
+        ((struct mlx4_qp_context *) (mailbox->buf + 8))->local_qpn =
+                cpu_to_be32(qp->qpn);
+
+        ret = mlx4_cmd(dev, mailbox->dma, qp->qpn | (!!sqd_event << 31),
+                       new_state == MLX4_QP_STATE_RST ? 2 : 0,
+                       op[cur_state][new_state], MLX4_CMD_TIME_CLASS_C);
+
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        return ret;
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_modify);
+
+int mlx4_qp_alloc(struct mlx4_dev *dev, int sqpn, struct mlx4_qp *qp)
+{
+        struct mlx4_priv *priv = mlx4_priv(dev);
+        struct mlx4_qp_table *qp_table = &priv->qp_table;
+        int err;
+
+        if (sqpn)
+                qp->qpn = sqpn;
+        else {
+                qp->qpn = mlx4_bitmap_alloc(&qp_table->bitmap);
+                if (qp->qpn == -1)
+                        return -ENOMEM;
+        }
+
+        err = mlx4_table_get(dev, &qp_table->qp_table, qp->qpn);
+        if (err)
+                goto err_out;
+
+        err = mlx4_table_get(dev, &qp_table->auxc_table, qp->qpn);
+        if (err)
+                goto err_put_qp;
+
+        err = mlx4_table_get(dev, &qp_table->altc_table, qp->qpn);
+        if (err)
+                goto err_put_auxc;
+
+        err = mlx4_table_get(dev, &qp_table->rdmarc_table, qp->qpn);
+        if (err)
+                goto err_put_altc;
+
+        err = mlx4_table_get(dev, &qp_table->cmpt_table, qp->qpn);
+        if (err)
+                goto err_put_rdmarc;
+
+        spin_lock_irq(&qp_table->lock);
+        err = radix_tree_insert(&dev->qp_table_tree, qp->qpn & (dev->caps.num_qps - 1), qp);
+        spin_unlock_irq(&qp_table->lock);
+        if (err)
+                goto err_put_cmpt;
+
+        atomic_set(&qp->refcount, 1);
+        init_completion(&qp->free);
+
+        return 0;
+
+err_put_cmpt:
+        mlx4_table_put(dev, &qp_table->cmpt_table, qp->qpn);
+
+err_put_rdmarc:
+        mlx4_table_put(dev, &qp_table->rdmarc_table, qp->qpn);
+
+err_put_altc:
+        mlx4_table_put(dev, &qp_table->altc_table, qp->qpn);
+
+err_put_auxc:
+        mlx4_table_put(dev, &qp_table->auxc_table, qp->qpn);
+
+err_put_qp:
+        mlx4_table_put(dev, &qp_table->qp_table, qp->qpn);
+
+err_out:
+        if (!sqpn)
+                mlx4_bitmap_free(&qp_table->bitmap, qp->qpn);
+
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_alloc);
+
+void mlx4_qp_remove(struct mlx4_dev *dev, struct mlx4_qp *qp)
+{
+        struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
+        unsigned long flags;
+
+        spin_lock_irqsave(&qp_table->lock, flags);
+        radix_tree_delete(&dev->qp_table_tree, qp->qpn & (dev->caps.num_qps - 1));
+        spin_unlock_irqrestore(&qp_table->lock, flags);
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_remove);
+
+void mlx4_qp_free(struct mlx4_dev *dev, struct mlx4_qp *qp)
+{
+        struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
+
+        if (atomic_dec_and_test(&qp->refcount))
+                complete(&qp->free);
+        wait_for_completion(&qp->free);
+
+        mlx4_table_put(dev, &qp_table->cmpt_table, qp->qpn);
+        mlx4_table_put(dev, &qp_table->rdmarc_table, qp->qpn);
+        mlx4_table_put(dev, &qp_table->altc_table, qp->qpn);
+        mlx4_table_put(dev, &qp_table->auxc_table, qp->qpn);
+        mlx4_table_put(dev, &qp_table->qp_table, qp->qpn);
+
+        mlx4_bitmap_free(&qp_table->bitmap, qp->qpn);
+}
+EXPORT_SYMBOL_GPL(mlx4_qp_free);
+
+static int mlx4_CONF_SPECIAL_QP(struct mlx4_dev *dev, u32 base_qpn)
+{
+        return mlx4_cmd(dev, 0, base_qpn, 0, MLX4_CMD_CONF_SPECIAL_QP,
+                        MLX4_CMD_TIME_CLASS_B);
+}
+
+int __devinit mlx4_init_qp_table(struct mlx4_dev *dev)
+{
+        struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table;
+        int err;
+
+        spin_lock_init(&qp_table->lock);
+        INIT_RADIX_TREE(&dev->qp_table_tree, GFP_ATOMIC);
+
+        /*
+         * We reserve 2 extra QPs per port for the special QPs.  The
+         * block of special QPs must be aligned to a multiple of 8, so
+         * round up.
+         */
+        dev->caps.sqp_start = ALIGN(dev->caps.reserved_qps, 8);
+        err = mlx4_bitmap_init(&qp_table->bitmap, dev->caps.num_qps,
+                               (1 << 24) - 1, dev->caps.sqp_start + 8);
+        if (err)
+                return err;
+
+        return mlx4_CONF_SPECIAL_QP(dev, dev->caps.sqp_start);
+}
+
+void mlx4_cleanup_qp_table(struct mlx4_dev *dev)
+{
+        mlx4_CONF_SPECIAL_QP(dev, 0);
+        mlx4_bitmap_cleanup(&mlx4_priv(dev)->qp_table.bitmap);
+}
diff --git a/drivers/net/mlx4/reset.c b/drivers/net/mlx4/reset.c
new file mode 100644
index 000000000000..51eef8492e93
--- /dev/null
+++ b/drivers/net/mlx4/reset.c
@@ -0,0 +1,181 @@
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+#include "mlx4.h"
+
+int mlx4_reset(struct mlx4_dev *dev)
+{
+        void __iomem *reset;
+        u32 *hca_header = NULL;
+        int pcie_cap;
+        u16 devctl;
+        u16 linkctl;
+        u16 vendor;
+        unsigned long end;
+        u32 sem;
+        int i;
+        int err = 0;
+
+#define MLX4_RESET_BASE         0xf0000
+#define MLX4_RESET_SIZE           0x400
+#define MLX4_SEM_OFFSET           0x3fc
+#define MLX4_RESET_OFFSET          0x10
+#define MLX4_RESET_VALUE        swab32(1)
+
+#define MLX4_SEM_TIMEOUT_JIFFIES        (10 * HZ)
+#define MLX4_RESET_TIMEOUT_JIFFIES      (2 * HZ)
+
+        /*
+         * Reset the chip.  This is somewhat ugly because we have to
+         * save off the PCI header before reset and then restore it
+         * after the chip reboots.  We skip config space offsets 22
+         * and 23 since those have a special meaning.
+         */
+
+        /* Do we need to save off the full 4K PCI Express header?? */
+        hca_header = kmalloc(256, GFP_KERNEL);
+        if (!hca_header) {
+                err = -ENOMEM;
+                mlx4_err(dev, "Couldn't allocate memory to save HCA "
+                          "PCI header, aborting.\n");
+                goto out;
+        }
+
+        pcie_cap = pci_find_capability(dev->pdev, PCI_CAP_ID_EXP);
+
+        for (i = 0; i < 64; ++i) {
+                if (i == 22 || i == 23)
+                        continue;
+                if (pci_read_config_dword(dev->pdev, i * 4, hca_header + i)) {
+                        err = -ENODEV;
+                        mlx4_err(dev, "Couldn't save HCA "
+                                  "PCI header, aborting.\n");
+                        goto out;
+                }
+        }
+
+        reset = ioremap(pci_resource_start(dev->pdev, 0) + MLX4_RESET_BASE,
+                        MLX4_RESET_SIZE);
+        if (!reset) {
+                err = -ENOMEM;
+                mlx4_err(dev, "Couldn't map HCA reset register, aborting.\n");
+                goto out;
+        }
+
+        /* grab HW semaphore to lock out flash updates */
+        end = jiffies + MLX4_SEM_TIMEOUT_JIFFIES;
+        do {
+                sem = readl(reset + MLX4_SEM_OFFSET);
+                if (!sem)
+                        break;
+
+                msleep(1);
+        } while (time_before(jiffies, end));
+
+        if (sem) {
+                mlx4_err(dev, "Failed to obtain HW semaphore, aborting\n");
+                err = -EAGAIN;
+                iounmap(reset);
+                goto out;
+        }
+
+        /* actually hit reset */
+        writel(MLX4_RESET_VALUE, reset + MLX4_RESET_OFFSET);
+        iounmap(reset);
+
+        end = jiffies + MLX4_RESET_TIMEOUT_JIFFIES;
+        do {
+                if (!pci_read_config_word(dev->pdev, PCI_VENDOR_ID, &vendor) &&
+                    vendor != 0xffff)
+                        break;
+
+                msleep(1);
+        } while (time_before(jiffies, end));
+
+        if (vendor == 0xffff) {
+                err = -ENODEV;
+                mlx4_err(dev, "PCI device did not come back after reset, "
+                          "aborting.\n");
+                goto out;
+        }
+
+        /* Now restore the PCI headers */
+        if (pcie_cap) {
+                devctl = hca_header[(pcie_cap + PCI_EXP_DEVCTL) / 4];
+                if (pci_write_config_word(dev->pdev, pcie_cap + PCI_EXP_DEVCTL,
+                                           devctl)) {
+                        err = -ENODEV;
+                        mlx4_err(dev, "Couldn't restore HCA PCI Express "
+                                 "Device Control register, aborting.\n");
+                        goto out;
+                }
+                linkctl = hca_header[(pcie_cap + PCI_EXP_LNKCTL) / 4];
+                if (pci_write_config_word(dev->pdev, pcie_cap + PCI_EXP_LNKCTL,
+                                           linkctl)) {
+                        err = -ENODEV;
+                        mlx4_err(dev, "Couldn't restore HCA PCI Express "
+                                 "Link control register, aborting.\n");
+                        goto out;
+                }
+        }
+
+        for (i = 0; i < 16; ++i) {
+                if (i * 4 == PCI_COMMAND)
+                        continue;
+
+                if (pci_write_config_dword(dev->pdev, i * 4, hca_header[i])) {
+                        err = -ENODEV;
+                        mlx4_err(dev, "Couldn't restore HCA reg %x, "
+                                  "aborting.\n", i);
+                        goto out;
+                }
+        }
+
+        if (pci_write_config_dword(dev->pdev, PCI_COMMAND,
+                                   hca_header[PCI_COMMAND / 4])) {
+                err = -ENODEV;
+                mlx4_err(dev, "Couldn't restore HCA COMMAND, "
+                          "aborting.\n");
+                goto out;
+        }
+
+out:
+        kfree(hca_header);
+
+        return err;
+}
diff --git a/drivers/net/mlx4/srq.c b/drivers/net/mlx4/srq.c
new file mode 100644
index 000000000000..2134f83aed87
--- /dev/null
+++ b/drivers/net/mlx4/srq.c
@@ -0,0 +1,227 @@
+/*
+ * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/init.h>
+
+#include <linux/mlx4/cmd.h>
+
+#include "mlx4.h"
+#include "icm.h"
+
+struct mlx4_srq_context {
+        __be32                  state_logsize_srqn;
+        u8                      logstride;
+        u8                      reserved1[3];
+        u8                      pg_offset;
+        u8                      reserved2[3];
+        u32                     reserved3;
+        u8                      log_page_size;
+        u8                      reserved4[2];
+        u8                      mtt_base_addr_h;
+        __be32                  mtt_base_addr_l;
+        __be32                  pd;
+        __be16                  limit_watermark;
+        __be16                  wqe_cnt;
+        u16                     reserved5;
+        __be16                  wqe_counter;
+        u32                     reserved6;
+        __be64                  db_rec_addr;
+};
+
+void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type)
+{
+        struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
+        struct mlx4_srq *srq;
+
+        spin_lock(&srq_table->lock);
+
+        srq = radix_tree_lookup(&srq_table->tree, srqn & (dev->caps.num_srqs - 1));
+        if (srq)
+                atomic_inc(&srq->refcount);
+
+        spin_unlock(&srq_table->lock);
+
+        if (!srq) {
+                mlx4_warn(dev, "Async event for bogus SRQ %08x\n", srqn);
+                return;
+        }
+
+        srq->event(srq, event_type);
+
+        if (atomic_dec_and_test(&srq->refcount))
+                complete(&srq->free);
+}
+
+static int mlx4_SW2HW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                          int srq_num)
+{
+        return mlx4_cmd(dev, mailbox->dma, srq_num, 0, MLX4_CMD_SW2HW_SRQ,
+                        MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_HW2SW_SRQ(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbox,
+                          int srq_num)
+{
+        return mlx4_cmd_box(dev, 0, mailbox ? mailbox->dma : 0, srq_num,
+                            mailbox ? 0 : 1, MLX4_CMD_HW2SW_SRQ,
+                            MLX4_CMD_TIME_CLASS_A);
+}
+
+static int mlx4_ARM_SRQ(struct mlx4_dev *dev, int srq_num, int limit_watermark)
+{
+        return mlx4_cmd(dev, limit_watermark, srq_num, 0, MLX4_CMD_ARM_SRQ,
+                        MLX4_CMD_TIME_CLASS_B);
+}
+
+int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, struct mlx4_mtt *mtt,
+                   u64 db_rec, struct mlx4_srq *srq)
+{
+        struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
+        struct mlx4_cmd_mailbox *mailbox;
+        struct mlx4_srq_context *srq_context;
+        u64 mtt_addr;
+        int err;
+
+        srq->srqn = mlx4_bitmap_alloc(&srq_table->bitmap);
+        if (srq->srqn == -1)
+                return -ENOMEM;
+
+        err = mlx4_table_get(dev, &srq_table->table, srq->srqn);
+        if (err)
+                goto err_out;
+
+        err = mlx4_table_get(dev, &srq_table->cmpt_table, srq->srqn);
+        if (err)
+                goto err_put;
+
+        spin_lock_irq(&srq_table->lock);
+        err = radix_tree_insert(&srq_table->tree, srq->srqn, srq);
+        spin_unlock_irq(&srq_table->lock);
+        if (err)
+                goto err_cmpt_put;
+
+        mailbox = mlx4_alloc_cmd_mailbox(dev);
+        if (IS_ERR(mailbox)) {
+                err = PTR_ERR(mailbox);
+                goto err_radix;
+        }
+
+        srq_context = mailbox->buf;
+        memset(srq_context, 0, sizeof *srq_context);
+
+        srq_context->state_logsize_srqn = cpu_to_be32((ilog2(srq->max) << 24) |
+                                                      srq->srqn);
+        srq_context->logstride          = srq->wqe_shift - 4;
+        srq_context->log_page_size      = mtt->page_shift - MLX4_ICM_PAGE_SHIFT;
+
+        mtt_addr = mlx4_mtt_addr(dev, mtt);
+        srq_context->mtt_base_addr_h    = mtt_addr >> 32;
+        srq_context->mtt_base_addr_l    = cpu_to_be32(mtt_addr & 0xffffffff);
+        srq_context->pd                 = cpu_to_be32(pdn);
+        srq_context->db_rec_addr        = cpu_to_be64(db_rec);
+
+        err = mlx4_SW2HW_SRQ(dev, mailbox, srq->srqn);
+        mlx4_free_cmd_mailbox(dev, mailbox);
+        if (err)
+                goto err_radix;
+
+        atomic_set(&srq->refcount, 1);
+        init_completion(&srq->free);
+
+        return 0;
+
+err_radix:
+        spin_lock_irq(&srq_table->lock);
+        radix_tree_delete(&srq_table->tree, srq->srqn);
+        spin_unlock_irq(&srq_table->lock);
+
+err_cmpt_put:
+        mlx4_table_put(dev, &srq_table->cmpt_table, srq->srqn);
+
+err_put:
+        mlx4_table_put(dev, &srq_table->table, srq->srqn);
+
+err_out:
+        mlx4_bitmap_free(&srq_table->bitmap, srq->srqn);
+
+        return err;
+}
+EXPORT_SYMBOL_GPL(mlx4_srq_alloc);
+
+void mlx4_srq_free(struct mlx4_dev *dev, struct mlx4_srq *srq)
+{
+        struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
+        int err;
+
+        err = mlx4_HW2SW_SRQ(dev, NULL, srq->srqn);
+        if (err)
+                mlx4_warn(dev, "HW2SW_SRQ failed (%d) for SRQN %06x\n", err, srq->srqn);
+
+        spin_lock_irq(&srq_table->lock);
+        radix_tree_delete(&srq_table->tree, srq->srqn);
+        spin_unlock_irq(&srq_table->lock);
+
+        if (atomic_dec_and_test(&srq->refcount))
+                complete(&srq->free);
+        wait_for_completion(&srq->free);
+
+        mlx4_table_put(dev, &srq_table->table, srq->srqn);
+        mlx4_bitmap_free(&srq_table->bitmap, srq->srqn);
+}
+EXPORT_SYMBOL_GPL(mlx4_srq_free);
+
+int mlx4_srq_arm(struct mlx4_dev *dev, struct mlx4_srq *srq, int limit_watermark)
+{
+        return mlx4_ARM_SRQ(dev, srq->srqn, limit_watermark);
+}
+EXPORT_SYMBOL_GPL(mlx4_srq_arm);
+
+int __devinit mlx4_init_srq_table(struct mlx4_dev *dev)
+{
+        struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table;
+        int err;
+
+        spin_lock_init(&srq_table->lock);
+        INIT_RADIX_TREE(&srq_table->tree, GFP_ATOMIC);
+
+        err = mlx4_bitmap_init(&srq_table->bitmap, dev->caps.num_srqs,
+                               dev->caps.num_srqs - 1, dev->caps.reserved_srqs);
+        if (err)
+                return err;
+
+        return 0;
+}
+
+void mlx4_cleanup_srq_table(struct mlx4_dev *dev)
+{
+        mlx4_bitmap_cleanup(&mlx4_priv(dev)->srq_table.bitmap);
+}
diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c
index 223e0e6264ba..4cf0d3fcb519 100644
--- a/drivers/net/natsemi.c
+++ b/drivers/net/natsemi.c
@@ -131,7 +131,6 @@ static const char version[] __devinitdata =
   KERN_INFO DRV_NAME " dp8381x driver, version "
       DRV_VERSION ", " DRV_RELDATE "\n"
   KERN_INFO "  originally by Donald Becker <becker@scyld.com>\n"
-  KERN_INFO "  http://www.scyld.com/network/natsemi.html\n"
   KERN_INFO "  2.4.x kernel port by Jeff Garzik, Tjeerd Mulder\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
diff --git a/drivers/net/ne2k-pci.c b/drivers/net/ne2k-pci.c
index 589785d1e762..995c0a5d4066 100644
--- a/drivers/net/ne2k-pci.c
+++ b/drivers/net/ne2k-pci.c
@@ -63,8 +63,7 @@ static int options[MAX_UNITS];
 
 /* These identify the driver base version and may not be removed. */
 static char version[] __devinitdata =
-KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " D. Becker/P. Gortmaker\n"
-KERN_INFO "  http://www.scyld.com/network/ne2k-pci.html\n";
+KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " D. Becker/P. Gortmaker\n";
 
 #if defined(__powerpc__)
 #define inl_le(addr)  le32_to_cpu(inl(addr))
diff --git a/drivers/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c
index 1060154ae750..4ecb8ca5a992 100644
--- a/drivers/net/pcmcia/ibmtr_cs.c
+++ b/drivers/net/pcmcia/ibmtr_cs.c
@@ -189,16 +189,20 @@ static void ibmtr_detach(struct pcmcia_device *link)
 {
     struct ibmtr_dev_t *info = link->priv;
     struct net_device *dev = info->dev;
+     struct tok_info *ti = netdev_priv(dev);
 
     DEBUG(0, "ibmtr_detach(0x%p)\n", link);
+    
+    /* 
+     * When the card removal interrupt hits tok_interrupt(), 
+     * bail out early, so we don't crash the machine 
+     */
+    ti->sram_phys |= 1;
 
     if (link->dev_node)
         unregister_netdev(dev);
-
-    {
-        struct tok_info *ti = netdev_priv(dev);
-        del_timer_sync(&(ti->tr_timer));
-    }
+    
+    del_timer_sync(&(ti->tr_timer));
 
     ibmtr_release(link);
 
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index f994f129f3d8..c0d3101eb6a0 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "PHY device support"
+        depends on !S390
 
 config PHYLIB
         tristate "PHY Device support and infrastructure"
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index eed433d6056a..f71dab347667 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -662,10 +662,10 @@ int phy_stop_interrupts(struct phy_device *phydev)
                 phy_error(phydev);
 
         /*
-         * Finish any pending work; we might have been scheduled
-         * to be called from keventd ourselves, though.
+         * Finish any pending work; we might have been scheduled to be called
+         * from keventd ourselves, but cancel_work_sync() handles that.
          */
-        run_scheduled_work(&phydev->phy_queue);
+        cancel_work_sync(&phydev->phy_queue);
 
         free_irq(phydev->irq, phydev);
 
diff --git a/drivers/net/skge.c b/drivers/net/skge.c
index b07da1054add..e0489578945d 100644
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -3594,7 +3594,9 @@ static struct net_device *skge_devinit(struct skge_hw *hw, int port,
         skge->duplex = -1;
         skge->speed = -1;
         skge->advertising = skge_supported_modes(hw);
-        skge->wol = pci_wake_enabled(hw->pdev) ? wol_supported(hw) : 0;
+
+        if (pci_wake_enabled(hw->pdev))
+                skge->wol = wol_supported(hw) & WAKE_MAGIC;
 
         hw->dev[port] = dev;
 
diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c
index f51ba31970aa..e1f912d04043 100644
--- a/drivers/net/sundance.c
+++ b/drivers/net/sundance.c
@@ -110,8 +110,7 @@ static char *media[MAX_UNITS];
 
 /* These identify the driver base version and may not be removed. */
 static char version[] =
-KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE "  Written by Donald Becker\n"
-KERN_INFO "  http://www.scyld.com/network/sundance.html\n";
+KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE "  Written by Donald Becker\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
 MODULE_DESCRIPTION("Sundance Alta Ethernet driver");
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index e5e901ecd808..923b9c725cc3 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -3716,10 +3716,8 @@ static void tg3_reset_task(struct work_struct *work)
         unsigned int restart_timer;
 
         tg3_full_lock(tp, 0);
-        tp->tg3_flags |= TG3_FLAG_IN_RESET_TASK;
 
         if (!netif_running(tp->dev)) {
-                tp->tg3_flags &= ~TG3_FLAG_IN_RESET_TASK;
                 tg3_full_unlock(tp);
                 return;
         }
@@ -3750,8 +3748,6 @@ static void tg3_reset_task(struct work_struct *work)
                 mod_timer(&tp->timer, jiffies + 1);
 
 out:
-        tp->tg3_flags &= ~TG3_FLAG_IN_RESET_TASK;
-
         tg3_full_unlock(tp);
 }
 
@@ -7390,12 +7386,7 @@ static int tg3_close(struct net_device *dev)
 {
         struct tg3 *tp = netdev_priv(dev);
 
-        /* Calling flush_scheduled_work() may deadlock because
-         * linkwatch_event() may be on the workqueue and it will try to get
-         * the rtnl_lock which we are holding.
-         */
-        while (tp->tg3_flags & TG3_FLAG_IN_RESET_TASK)
-                msleep(1);
+        cancel_work_sync(&tp->reset_task);
 
         netif_stop_queue(dev);
 
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index 4d334cf5a243..bd9f4f428e5b 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -2228,7 +2228,7 @@ struct tg3 {
 #define TG3_FLAG_JUMBO_RING_ENABLE      0x00800000
 #define TG3_FLAG_10_100_ONLY            0x01000000
 #define TG3_FLAG_PAUSE_AUTONEG          0x02000000
-#define TG3_FLAG_IN_RESET_TASK          0x04000000
+
 #define TG3_FLAG_40BIT_DMA_BUG          0x08000000
 #define TG3_FLAG_BROKEN_CHECKSUMS       0x10000000
 #define TG3_FLAG_SUPPORT_MSI            0x20000000
diff --git a/drivers/net/tulip/interrupt.c b/drivers/net/tulip/interrupt.c
index 9b08afbd1f65..ea896777bcaf 100644
--- a/drivers/net/tulip/interrupt.c
+++ b/drivers/net/tulip/interrupt.c
@@ -269,7 +269,7 @@ done:
             This would turn on IM for devices that is not contributing
             to backlog congestion with unnecessary latency.
 
-             We monitor the the device RX-ring and have:
+             We monitor the device RX-ring and have:
 
              HW Interrupt Mitigation either ON or OFF.
 
diff --git a/drivers/net/tulip/winbond-840.c b/drivers/net/tulip/winbond-840.c
index fa440706fb4a..38f3b99716b8 100644
--- a/drivers/net/tulip/winbond-840.c
+++ b/drivers/net/tulip/winbond-840.c
@@ -1021,7 +1021,7 @@ static int start_tx(struct sk_buff *skb, struct net_device *dev)
                 np->tx_ring[entry].length |= DescEndRing;
 
         /* Now acquire the irq spinlock.
-         * The difficult race is the the ordering between
+         * The difficult race is the ordering between
          * increasing np->cur_tx and setting DescOwned:
          * - if np->cur_tx is increased first the interrupt
          *   handler could consider the packet as transmitted
diff --git a/drivers/net/tulip/xircom_cb.c b/drivers/net/tulip/xircom_cb.c
index 985a1810ca59..2470b1ee33c0 100644
--- a/drivers/net/tulip/xircom_cb.c
+++ b/drivers/net/tulip/xircom_cb.c
@@ -1043,7 +1043,7 @@ static int enable_promisc(struct xircom_private *card)
 
 
 /*
-link_status() checks the the links status and will return 0 for no link, 10 for 10mbit link and 100 for.. guess what.
+link_status() checks the links status and will return 0 for no link, 10 for 10mbit link and 100 for.. guess what.
 
 Must be called in locked state with interrupts disabled
 */
diff --git a/drivers/net/typhoon.c b/drivers/net/typhoon.c
index f2dd7763cd0b..f72573594121 100644
--- a/drivers/net/typhoon.c
+++ b/drivers/net/typhoon.c
@@ -639,7 +639,7 @@ typhoon_issue_command(struct typhoon *tp, int num_cmd, struct cmd_desc *cmd,
 
         typhoon_inc_cmd_index(&ring->lastWrite, num_cmd);
 
-        /* "I feel a presence... another warrior is on the the mesa."
+        /* "I feel a presence... another warrior is on the mesa."
          */
         wmb();
         iowrite32(ring->lastWrite, tp->ioaddr + TYPHOON_REG_CMD_READY);
diff --git a/drivers/usb/net/Kconfig b/drivers/net/usb/Kconfig
index 3de564b23147..3de564b23147 100644
--- a/drivers/usb/net/Kconfig
+++ b/drivers/net/usb/Kconfig
diff --git a/drivers/usb/net/Makefile b/drivers/net/usb/Makefile
index 595a539f8384..595a539f8384 100644
--- a/drivers/usb/net/Makefile
+++ b/drivers/net/usb/Makefile
diff --git a/drivers/usb/net/asix.c b/drivers/net/usb/asix.c
index d5ef97bc4d01..d5ef97bc4d01 100644
--- a/drivers/usb/net/asix.c
+++ b/drivers/net/usb/asix.c
diff --git a/drivers/usb/net/catc.c b/drivers/net/usb/catc.c
index 86e90c59d551..86e90c59d551 100644
--- a/drivers/usb/net/catc.c
+++ b/drivers/net/usb/catc.c
diff --git a/drivers/usb/net/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 5a21f06bf8a5..5a21f06bf8a5 100644
--- a/drivers/usb/net/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
diff --git a/drivers/usb/net/cdc_subset.c b/drivers/net/usb/cdc_subset.c
index bc62b012602b..bc62b012602b 100644
--- a/drivers/usb/net/cdc_subset.c
+++ b/drivers/net/usb/cdc_subset.c
diff --git a/drivers/usb/net/dm9601.c b/drivers/net/usb/dm9601.c
index a67638601477..a67638601477 100644
--- a/drivers/usb/net/dm9601.c
+++ b/drivers/net/usb/dm9601.c
diff --git a/drivers/usb/net/gl620a.c b/drivers/net/usb/gl620a.c
index 031cf5ca4dbb..031cf5ca4dbb 100644
--- a/drivers/usb/net/gl620a.c
+++ b/drivers/net/usb/gl620a.c
diff --git a/drivers/usb/net/kaweth.c b/drivers/net/usb/kaweth.c
index 60d29440f316..60d29440f316 100644
--- a/drivers/usb/net/kaweth.c
+++ b/drivers/net/usb/kaweth.c
diff --git a/drivers/usb/net/kawethfw.h b/drivers/net/usb/kawethfw.h
index cf85fcb0d1a6..cf85fcb0d1a6 100644
--- a/drivers/usb/net/kawethfw.h
+++ b/drivers/net/usb/kawethfw.h
diff --git a/drivers/usb/net/mcs7830.c b/drivers/net/usb/mcs7830.c
index 6240b978fe3d..6240b978fe3d 100644
--- a/drivers/usb/net/mcs7830.c
+++ b/drivers/net/usb/mcs7830.c
diff --git a/drivers/usb/net/net1080.c b/drivers/net/usb/net1080.c
index 19bf8dae70c9..19bf8dae70c9 100644
--- a/drivers/usb/net/net1080.c
+++ b/drivers/net/usb/net1080.c
diff --git a/drivers/usb/net/pegasus.c b/drivers/net/usb/pegasus.c
index a05fd97e5bc2..a05fd97e5bc2 100644
--- a/drivers/usb/net/pegasus.c
+++ b/drivers/net/usb/pegasus.c
diff --git a/drivers/usb/net/pegasus.h b/drivers/net/usb/pegasus.h
index c7467823cd1c..c7467823cd1c 100644
--- a/drivers/usb/net/pegasus.h
+++ b/drivers/net/usb/pegasus.h
diff --git a/drivers/usb/net/plusb.c b/drivers/net/usb/plusb.c
index 45300939d185..45300939d185 100644
--- a/drivers/usb/net/plusb.c
+++ b/drivers/net/usb/plusb.c
diff --git a/drivers/usb/net/rndis_host.c b/drivers/net/usb/rndis_host.c
index 980e4aaa97aa..980e4aaa97aa 100644
--- a/drivers/usb/net/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
diff --git a/drivers/usb/net/rtl8150.c b/drivers/net/usb/rtl8150.c
index fa598f0340cf..fa598f0340cf 100644
--- a/drivers/usb/net/rtl8150.c
+++ b/drivers/net/usb/rtl8150.c
diff --git a/drivers/usb/net/usbnet.c b/drivers/net/usb/usbnet.c
index f9cd42d058b0..f9cd42d058b0 100644
--- a/drivers/usb/net/usbnet.c
+++ b/drivers/net/usb/usbnet.c
diff --git a/drivers/usb/net/usbnet.h b/drivers/net/usb/usbnet.h
index cbb53e065d6c..82db5a8e528e 100644
--- a/drivers/usb/net/usbnet.h
+++ b/drivers/net/usb/usbnet.h
@@ -129,7 +129,7 @@ extern void usbnet_disconnect(struct usb_interface *);
 
 
 /* Drivers that reuse some of the standard USB CDC infrastructure
- * (notably, using multiple interfaces according to the the CDC
+ * (notably, using multiple interfaces according to the CDC
  * union descriptor) get some helper code.
  */
 struct cdc_state {
diff --git a/drivers/usb/net/zaurus.c b/drivers/net/usb/zaurus.c
index 9f98e8ce487a..9f98e8ce487a 100644
--- a/drivers/usb/net/zaurus.c
+++ b/drivers/net/usb/zaurus.c
diff --git a/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index e273347dc606..e3f5bb0fe603 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "Wireless LAN"
+        depends on !S390
 
 config WLAN_PRE80211
         bool "Wireless LAN (pre-802.11)"
diff --git a/drivers/net/wireless/airport.c b/drivers/net/wireless/airport.c
index 38fac3bbcd82..7d5b8c2cc614 100644
--- a/drivers/net/wireless/airport.c
+++ b/drivers/net/wireless/airport.c
@@ -149,7 +149,7 @@ static int airport_hard_reset(struct orinoco_private *priv)
         /* Vitally important.  If we don't do this it seems we get an
          * interrupt somewhere during the power cycle, since
          * hw_unavailable is already set it doesn't get ACKed, we get
-         * into an interrupt loop and the the PMU decides to turn us
+         * into an interrupt loop and the PMU decides to turn us
          * off. */
         disable_irq(dev->irq);
 
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx.h b/drivers/net/wireless/bcm43xx/bcm43xx.h
index f8483c179e4c..10e07e865426 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx.h
+++ b/drivers/net/wireless/bcm43xx/bcm43xx.h
@@ -658,12 +658,6 @@ struct bcm43xx_pio {
 
 #define BCM43xx_MAX_80211_CORES         2
 
-#ifdef CONFIG_BCM947XX
-#define core_offset(bcm) (bcm)->current_core_offset
-#else
-#define core_offset(bcm) 0
-#endif
-
 /* Generic information about a core. */
 struct bcm43xx_coreinfo {
         u8 available:1,
@@ -789,10 +783,6 @@ struct bcm43xx_private {
 
         /* The currently active core. */
         struct bcm43xx_coreinfo *current_core;
-#ifdef CONFIG_BCM947XX
-        /** current core memory offset */
-        u32 current_core_offset;
-#endif
         struct bcm43xx_coreinfo *active_80211_core;
         /* coreinfo structs for all possible cores follow.
          * Note that a core might not exist.
@@ -943,25 +933,25 @@ struct bcm43xx_lopair * bcm43xx_get_lopair(struct bcm43xx_phyinfo *phy,
 static inline
 u16 bcm43xx_read16(struct bcm43xx_private *bcm, u16 offset)
 {
-        return ioread16(bcm->mmio_addr + core_offset(bcm) + offset);
+        return ioread16(bcm->mmio_addr + offset);
 }
 
 static inline
 void bcm43xx_write16(struct bcm43xx_private *bcm, u16 offset, u16 value)
 {
-        iowrite16(value, bcm->mmio_addr + core_offset(bcm) + offset);
+        iowrite16(value, bcm->mmio_addr + offset);
 }
 
 static inline
 u32 bcm43xx_read32(struct bcm43xx_private *bcm, u16 offset)
 {
-        return ioread32(bcm->mmio_addr + core_offset(bcm) + offset);
+        return ioread32(bcm->mmio_addr + offset);
 }
 
 static inline
 void bcm43xx_write32(struct bcm43xx_private *bcm, u16 offset, u32 value)
 {
-        iowrite32(value, bcm->mmio_addr + core_offset(bcm) + offset);
+        iowrite32(value, bcm->mmio_addr + offset);
 }
 
 static inline
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_dma.c b/drivers/net/wireless/bcm43xx/bcm43xx_dma.c
index e3d2e61a31ee..1f7731fcfbd5 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_dma.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_dma.c
@@ -660,10 +660,6 @@ struct bcm43xx_dmaring * bcm43xx_setup_dmaring(struct bcm43xx_private *bcm,
         ring->routing = BCM43xx_DMA32_CLIENTTRANS;
         if (dma64)
                 ring->routing = BCM43xx_DMA64_CLIENTTRANS;
-#ifdef CONFIG_BCM947XX
-        if (bcm->pci_dev->bus->number == 0)
-                ring->routing = dma64 ? BCM43xx_DMA64_NOTRANS : BCM43xx_DMA32_NOTRANS;
-#endif
 
         ring->bcm = bcm;
         ring->nr_slots = nr_slots;
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
index 5e96bca6730a..ef6b253a92ce 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
@@ -61,10 +61,6 @@ MODULE_AUTHOR("Stefano Brivio");
 MODULE_AUTHOR("Michael Buesch");
 MODULE_LICENSE("GPL");
 
-#ifdef CONFIG_BCM947XX
-extern char *nvram_get(char *name);
-#endif
-
 #if defined(CONFIG_BCM43XX_DMA) && defined(CONFIG_BCM43XX_PIO)
 static int modparam_pio;
 module_param_named(pio, modparam_pio, int, 0444);
@@ -142,10 +138,6 @@ MODULE_PARM_DESC(fwpostfix, "Postfix for .fw files. Useful for using multiple fi
         { PCI_VENDOR_ID_BROADCOM, 0x4324, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
         /* Broadcom 43XG 802.11b/g */
         { PCI_VENDOR_ID_BROADCOM, 0x4325, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-#ifdef CONFIG_BCM947XX
-        /* SB bus on BCM947xx */
-        { PCI_VENDOR_ID_BROADCOM, 0x0800, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
-#endif
         { 0 },
 };
 MODULE_DEVICE_TABLE(pci, bcm43xx_pci_tbl);
@@ -786,9 +778,6 @@ static int bcm43xx_sprom_extract(struct bcm43xx_private *bcm)
 {
         u16 value;
         u16 *sprom;
-#ifdef CONFIG_BCM947XX
-        char *c;
-#endif
 
         sprom = kzalloc(BCM43xx_SPROM_SIZE * sizeof(u16),
                         GFP_KERNEL);
@@ -796,28 +785,7 @@ static int bcm43xx_sprom_extract(struct bcm43xx_private *bcm)
                 printk(KERN_ERR PFX "sprom_extract OOM\n");
                 return -ENOMEM;
         }
-#ifdef CONFIG_BCM947XX
-        sprom[BCM43xx_SPROM_BOARDFLAGS2] = atoi(nvram_get("boardflags2"));
-        sprom[BCM43xx_SPROM_BOARDFLAGS] = atoi(nvram_get("boardflags"));
-
-        if ((c = nvram_get("il0macaddr")) != NULL)
-                e_aton(c, (char *) &(sprom[BCM43xx_SPROM_IL0MACADDR]));
-
-        if ((c = nvram_get("et1macaddr")) != NULL)
-                e_aton(c, (char *) &(sprom[BCM43xx_SPROM_ET1MACADDR]));
-
-        sprom[BCM43xx_SPROM_PA0B0] = atoi(nvram_get("pa0b0"));
-        sprom[BCM43xx_SPROM_PA0B1] = atoi(nvram_get("pa0b1"));
-        sprom[BCM43xx_SPROM_PA0B2] = atoi(nvram_get("pa0b2"));
-
-        sprom[BCM43xx_SPROM_PA1B0] = atoi(nvram_get("pa1b0"));
-        sprom[BCM43xx_SPROM_PA1B1] = atoi(nvram_get("pa1b1"));
-        sprom[BCM43xx_SPROM_PA1B2] = atoi(nvram_get("pa1b2"));
-
-        sprom[BCM43xx_SPROM_BOARDREV] = atoi(nvram_get("boardrev"));
-#else
         bcm43xx_sprom_read(bcm, sprom);
-#endif
 
         /* boardflags2 */
         value = sprom[BCM43xx_SPROM_BOARDFLAGS2];
@@ -1225,12 +1193,6 @@ static int _switch_core(struct bcm43xx_private *bcm, int core)
                         goto error;
                 udelay(10);
         }
-#ifdef CONFIG_BCM947XX
-        if (bcm->pci_dev->bus->number == 0)
-                bcm->current_core_offset = 0x1000 * core;
-        else
-                bcm->current_core_offset = 0;
-#endif
 
         return 0;
 error:
@@ -1387,19 +1349,6 @@ void bcm43xx_wireless_core_reset(struct bcm43xx_private *bcm, int connect_phy)
 
         if ((bcm43xx_core_enabled(bcm)) &&
             !bcm43xx_using_pio(bcm)) {
-//FIXME: Do we _really_ want #ifndef CONFIG_BCM947XX here?
-#if 0
-#ifndef CONFIG_BCM947XX
-                /* reset all used DMA controllers. */
-                bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA1_BASE);
-                bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA2_BASE);
-                bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA3_BASE);
-                bcm43xx_dmacontroller_tx_reset(bcm, BCM43xx_MMIO_DMA4_BASE);
-                bcm43xx_dmacontroller_rx_reset(bcm, BCM43xx_MMIO_DMA1_BASE);
-                if (bcm->current_core->rev < 5)
-                        bcm43xx_dmacontroller_rx_reset(bcm, BCM43xx_MMIO_DMA4_BASE);
-#endif
-#endif
         }
         if (bcm43xx_status(bcm) == BCM43xx_STAT_SHUTTINGDOWN) {
                 bcm43xx_write32(bcm, BCM43xx_MMIO_STATUS_BITFIELD,
@@ -2140,32 +2089,11 @@ out:
         return err;
 }
 
-#ifdef CONFIG_BCM947XX
-static struct pci_device_id bcm43xx_47xx_ids[] = {
-        { PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4324) },
-        { 0 }
-};
-#endif
-
 static int bcm43xx_initialize_irq(struct bcm43xx_private *bcm)
 {
         int err;
 
         bcm->irq = bcm->pci_dev->irq;
-#ifdef CONFIG_BCM947XX
-        if (bcm->pci_dev->bus->number == 0) {
-                struct pci_dev *d;
-                struct pci_device_id *id;
-                for (id = bcm43xx_47xx_ids; id->vendor; id++) {
-                        d = pci_get_device(id->vendor, id->device, NULL);
-                        if (d != NULL) {
-                                bcm->irq = d->irq;
-                                pci_dev_put(d);
-                                break;
-                        }
-                }
-        }
-#endif
         err = request_irq(bcm->irq, bcm43xx_interrupt_handler,
                           IRQF_SHARED, KBUILD_MODNAME, bcm);
         if (err)
@@ -2645,10 +2573,6 @@ static int bcm43xx_probe_cores(struct bcm43xx_private *bcm)
                         chip_id_16 = 0x4610;
                 else if ((pci_device >= 0x4710) && (pci_device <= 0x4715))
                         chip_id_16 = 0x4710;
-#ifdef CONFIG_BCM947XX
-                else if ((pci_device >= 0x4320) && (pci_device <= 0x4325))
-                        chip_id_16 = 0x4309;
-#endif
                 else {
                         printk(KERN_ERR PFX "Could not determine Chip ID\n");
                         return -ENODEV;
@@ -4144,11 +4068,6 @@ static int __devinit bcm43xx_init_one(struct pci_dev *pdev,
         struct bcm43xx_private *bcm;
         int err;
 
-#ifdef CONFIG_BCM947XX
-        if ((pdev->bus->number == 0) && (pdev->device != 0x0800))
-                return -ENODEV;
-#endif
-
 #ifdef DEBUG_SINGLE_DEVICE_ONLY
         if (strcmp(pci_name(pdev), DEBUG_SINGLE_DEVICE_ONLY))
                 return -ENODEV;
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.h b/drivers/net/wireless/bcm43xx/bcm43xx_main.h
index f76357178e4d..c8f3c532bab5 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_main.h
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.h
@@ -33,25 +33,6 @@
 
 #include "bcm43xx.h"
 
-#ifdef CONFIG_BCM947XX
-#define atoi(str) simple_strtoul(((str != NULL) ? str : ""), NULL, 0)
-
-static inline void e_aton(char *str, char *dest)
-{
-        int i = 0;
-        u16 *d = (u16 *) dest;
-
-        for (;;) {
-                dest[i++] = (char) simple_strtoul(str, NULL, 16);
-                str += 2;
-                if (!*str++ || i == 6)
-                        break;
-        }
-        for (i = 0; i < 3; i++)
-                d[i] = cpu_to_be16(d[i]);
-}
-#endif
-
 #define P4D_BYT3S(magic, nr_bytes)      u8 __p4dding##magic[nr_bytes]
 #define P4D_BYTES(line, nr_bytes)       P4D_BYT3S(line, nr_bytes)
 /* Magic helper macro to pad structures. Ignore those above. It's magic. */
diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index 841b3c136ad9..283be4a70524 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -3054,7 +3054,7 @@ static const iw_handler prism54_handler[] = {
         (iw_handler) prism54_set_wap,   /* SIOCSIWAP */
         (iw_handler) prism54_get_wap,   /* SIOCGIWAP */
         (iw_handler) NULL,      /* -- hole -- */
-        (iw_handler) NULL,      /* SIOCGIWAPLIST depreciated */
+        (iw_handler) NULL,      /* SIOCGIWAPLIST deprecated */
         (iw_handler) prism54_set_scan,  /* SIOCSIWSCAN */
         (iw_handler) prism54_get_scan,  /* SIOCGIWSCAN */
         (iw_handler) prism54_set_essid, /* SIOCSIWESSID */
diff --git a/drivers/net/wireless/prism54/islpci_dev.c b/drivers/net/wireless/prism54/islpci_dev.c
index a037b11dac9d..084795355b74 100644
--- a/drivers/net/wireless/prism54/islpci_dev.c
+++ b/drivers/net/wireless/prism54/islpci_dev.c
@@ -115,7 +115,7 @@ isl_upload_firmware(islpci_private *priv)
                             ISL38XX_MEMORY_WINDOW_SIZE : fw_len;
                         u32 __iomem *dev_fw_ptr = device_base + ISL38XX_DIRECT_MEM_WIN;
 
-                        /* set the cards base address for writting the data */
+                        /* set the card's base address for writing the data */
                         isl38xx_w32_flush(device_base, reg,
                                           ISL38XX_DIR_MEM_BASE_REG);
                         wmb();  /* be paranoid */
diff --git a/drivers/net/wireless/wavelan_cs.c b/drivers/net/wireless/wavelan_cs.c
index 67b867f837ca..5740d4d4267c 100644
--- a/drivers/net/wireless/wavelan_cs.c
+++ b/drivers/net/wireless/wavelan_cs.c
@@ -176,7 +176,7 @@ psa_write(struct net_device *	dev,
   volatile u_char __iomem *verify = lp->mem + PSA_ADDR +
     (psaoff(0, psa_comp_number) << 1);
 
-  /* Authorize writting to PSA */
+  /* Authorize writing to PSA */
   hacr_write(base, HACR_PWR_STAT | HACR_ROM_WEN);
 
   while(n-- > 0)
@@ -1676,7 +1676,7 @@ wv_set_frequency(u_long		base,	/* i/o port of the card */
       fee_write(base, 0x60,
                 dac, 2);
 
-      /* We now should verify here that the EEprom writting was ok */
+      /* We now should verify here that the EEprom writing was ok */
 
       /* ReRead the first area */
       fee_read(base, 0x00,
diff --git a/drivers/net/wireless/wavelan_cs.p.h b/drivers/net/wireless/wavelan_cs.p.h
index 4d1c4905c749..4b9de0093a7b 100644
--- a/drivers/net/wireless/wavelan_cs.p.h
+++ b/drivers/net/wireless/wavelan_cs.p.h
@@ -120,7 +120,7 @@
  * the Wavelan itself (NCR -> AT&T -> Lucent).
  *
  * All started with Anders Klemets <klemets@paul.rutgers.edu>,
- * writting a Wavelan ISA driver for the MACH microkernel. Girish
+ * writing a Wavelan ISA driver for the MACH microkernel. Girish
  * Welling <welling@paul.rutgers.edu> had also worked on it.
  * Keith Moore modify this for the Pcmcia hardware.
  * 
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index e04cffc8adf3..8459549d0cee 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -40,6 +40,7 @@ static struct usb_device_id usb_ids[] = {
         { USB_DEVICE(0x126f, 0xa006), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x6891, 0xa727), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x0df6, 0x9071), .driver_info = DEVICE_ZD1211 },
+        { USB_DEVICE(0x0df6, 0x9075), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x157e, 0x300b), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x079b, 0x004a), .driver_info = DEVICE_ZD1211 },
         { USB_DEVICE(0x1740, 0x2000), .driver_info = DEVICE_ZD1211 },
@@ -67,8 +68,11 @@ static struct usb_device_id usb_ids[] = {
         { USB_DEVICE(0x0586, 0x3410), .driver_info = DEVICE_ZD1211B },
         { USB_DEVICE(0x0baf, 0x0121), .driver_info = DEVICE_ZD1211B },
         { USB_DEVICE(0x0586, 0x3412), .driver_info = DEVICE_ZD1211B },
+        { USB_DEVICE(0x0586, 0x3413), .driver_info = DEVICE_ZD1211B },
+        { USB_DEVICE(0x0053, 0x5301), .driver_info = DEVICE_ZD1211B },
         /* "Driverless" devices that need ejecting */
         { USB_DEVICE(0x0ace, 0x2011), .driver_info = DEVICE_INSTALLER },
+        { USB_DEVICE(0x0ace, 0x20ff), .driver_info = DEVICE_INSTALLER },
         {}
 };
 
diff --git a/drivers/net/yellowfin.c b/drivers/net/yellowfin.c
index 3f4a7cf9efea..f2a90a7fa2d6 100644
--- a/drivers/net/yellowfin.c
+++ b/drivers/net/yellowfin.c
@@ -109,7 +109,6 @@ static int gx_fix;
 /* These identify the driver base version and may not be removed. */
 static char version[] __devinitdata =
 KERN_INFO DRV_NAME ".c:v1.05  1/09/2001  Written by Donald Becker <becker@scyld.com>\n"
-KERN_INFO "  http://www.scyld.com/network/yellowfin.html\n"
 KERN_INFO "  (unofficial 2.4.x port, " DRV_VERSION ", " DRV_RELDATE ")\n";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
index 36c6a1bfe558..f46c69e4ed82 100644
--- a/drivers/parport/Kconfig
+++ b/drivers/parport/Kconfig
@@ -6,6 +6,7 @@
 #
 
 menu "Parallel port support"
+        depends on HAS_IOMEM
 
 config PARPORT
         tristate "Parallel port support"
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 3bb7739d26a5..8e58ea3d95c0 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -119,7 +119,7 @@ static inline int pci_create_newid_file(struct pci_driver *drv)
  * system is in its list of supported devices.  Returns the matching
  * pci_device_id structure or %NULL if there is no match.
  *
- * Depreciated, don't use this as it will not catch any dynamic ids
+ * Deprecated, don't use this as it will not catch any dynamic ids
  * that a driver might want to check for.
  */
 const struct pci_device_id *pci_match_id(const struct pci_device_id *ids,
diff --git a/drivers/pnp/Kconfig b/drivers/pnp/Kconfig
index c5143201419a..1959cef8e9de 100644
--- a/drivers/pnp/Kconfig
+++ b/drivers/pnp/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "Plug and Play support"
+        depends on HAS_IOMEM
 
 config PNP
         bool "Plug and Play support"
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 5e439836db2d..1759baad439c 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "Real Time Clock"
+        depends on !S390
 
 config RTC_LIB
         tristate
@@ -98,7 +99,7 @@ config RTC_INTF_DEV_UIE_EMUL
         bool "RTC UIE emulation on dev interface"
         depends on RTC_INTF_DEV
         help
-          Provides an emulation for RTC_UIE if the underlaying rtc chip
+          Provides an emulation for RTC_UIE if the underlying rtc chip
           driver does not expose RTC_UIE ioctls.  Those requests generate
           once-per-second update interrupts, used for synchronization.
 
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index 6abf4811958c..e0f91dfce0f5 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -104,7 +104,7 @@ static irqreturn_t sh_rtc_interrupt(int irq, void *dev_id)
 
         writeb(tmp, rtc->regbase + RCR1);
 
-        rtc_update_irq(&rtc->rtc_dev, 1, events);
+        rtc_update_irq(rtc->rtc_dev, 1, events);
 
         spin_unlock(&rtc->lock);
 
@@ -139,7 +139,7 @@ static irqreturn_t sh_rtc_alarm(int irq, void *dev_id)
 
                 rtc->rearm_aie = 1;
 
-                rtc_update_irq(&rtc->rtc_dev, 1, events);
+                rtc_update_irq(rtc->rtc_dev, 1, events);
         }
 
         spin_unlock(&rtc->lock);
@@ -153,7 +153,7 @@ static irqreturn_t sh_rtc_periodic(int irq, void *dev_id)
 
         spin_lock(&rtc->lock);
 
-        rtc_update_irq(&rtc->rtc_dev, 1, RTC_PF | RTC_IRQF);
+        rtc_update_irq(rtc->rtc_dev, 1, RTC_PF | RTC_IRQF);
 
         spin_unlock(&rtc->lock);
 
@@ -341,7 +341,7 @@ static int sh_rtc_read_time(struct device *dev, struct rtc_time *tm)
                 tm->tm_sec--;
 #endif
 
-        dev_dbg(&dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
+        dev_dbg(dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
                 "mday=%d, mon=%d, year=%d, wday=%d\n",
                 __FUNCTION__,
                 tm->tm_sec, tm->tm_min, tm->tm_hour,
diff --git a/drivers/s390/block/Kconfig b/drivers/s390/block/Kconfig
index b250c5354503..e879b212cf43 100644
--- a/drivers/s390/block/Kconfig
+++ b/drivers/s390/block/Kconfig
@@ -1,11 +1,9 @@
-if S390 && BLOCK
-
 comment "S/390 block device drivers"
-        depends on S390
+        depends on S390 && BLOCK
 
 config BLK_DEV_XPRAM
         tristate "XPRAM disk support"
-        depends on S390
+        depends on S390 && BLOCK
         help
           Select this option if you want to use your expanded storage on S/390
           or zSeries as a disk.  This is useful as a _fast_ swap device if you
@@ -15,12 +13,13 @@ config BLK_DEV_XPRAM
 
 config DCSSBLK
         tristate "DCSSBLK support"
+        depends on S390 && BLOCK
         help
           Support for dcss block device
 
 config DASD
         tristate "Support for DASD devices"
-        depends on CCW
+        depends on CCW && BLOCK
         help
           Enable this option if you want to access DASDs directly utilizing
           S/390s channel subsystem commands. This is necessary for running
@@ -62,5 +61,3 @@ config DASD_EER
           This driver provides a character device interface to the
           DASD extended error reporting. This is only needed if you want to
           use applications written for the EER facility.
-
-endif
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 977521013fe8..bfeca57098fa 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2174,9 +2174,10 @@ dasd_generic_notify(struct ccw_device *cdev, int event)
         return ret;
 }
 
-struct dasd_ccw_req * dasd_generic_build_rdc(struct dasd_device *device,
-                                             void *rdc_buffer,
-                                             int rdc_buffer_size, char *magic)
+static struct dasd_ccw_req *dasd_generic_build_rdc(struct dasd_device *device,
+                                                   void *rdc_buffer,
+                                                   int rdc_buffer_size,
+                                                   char *magic)
 {
         struct dasd_ccw_req *cqr;
         struct ccw1 *ccw;
@@ -2219,6 +2220,7 @@ int dasd_generic_read_dev_chars(struct dasd_device *device, char *magic,
         dasd_sfree_request(cqr, cqr->device);
         return ret;
 }
+EXPORT_SYMBOL_GPL(dasd_generic_read_dev_chars);
 
 static int __init
 dasd_init(void)
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index e810e4a44ed4..eccac1c3b71b 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -50,6 +50,7 @@ struct dasd_diag_private {
         struct dasd_diag_rw_io iob;
         struct dasd_diag_init_io iib;
         blocknum_t pt_block;
+        struct ccw_dev_id dev_id;
 };
 
 struct dasd_diag_req {
@@ -102,7 +103,7 @@ mdsk_init_io(struct dasd_device *device, unsigned int blocksize,
         iib = &private->iib;
         memset(iib, 0, sizeof (struct dasd_diag_init_io));
 
-        iib->dev_nr = _ccw_device_get_device_number(device->cdev);
+        iib->dev_nr = private->dev_id.devno;
         iib->block_size = blocksize;
         iib->offset = offset;
         iib->flaga = DASD_DIAG_FLAGA_DEFAULT;
@@ -127,7 +128,7 @@ mdsk_term_io(struct dasd_device * device)
         private = (struct dasd_diag_private *) device->private;
         iib = &private->iib;
         memset(iib, 0, sizeof (struct dasd_diag_init_io));
-        iib->dev_nr = _ccw_device_get_device_number(device->cdev);
+        iib->dev_nr = private->dev_id.devno;
         rc = dia250(iib, TERM_BIO);
         return rc;
 }
@@ -166,7 +167,7 @@ dasd_start_diag(struct dasd_ccw_req * cqr)
         private = (struct dasd_diag_private *) device->private;
         dreq = (struct dasd_diag_req *) cqr->data;
 
-        private->iob.dev_nr = _ccw_device_get_device_number(device->cdev);
+        private->iob.dev_nr = private->dev_id.devno;
         private->iob.key = 0;
         private->iob.flags = DASD_DIAG_RWFLAG_ASYNC;
         private->iob.block_count = dreq->block_count;
@@ -323,11 +324,12 @@ dasd_diag_check_device(struct dasd_device *device)
                                 "memory allocation failed for private data");
                         return -ENOMEM;
                 }
+                ccw_device_get_id(device->cdev, &private->dev_id);
                 device->private = (void *) private;
         }
         /* Read Device Characteristics */
         rdc_data = (void *) &(private->rdc_data);
-        rdc_data->dev_nr = _ccw_device_get_device_number(device->cdev);
+        rdc_data->dev_nr = private->dev_id.devno;
         rdc_data->rdc_len = sizeof (struct dasd_diag_characteristics);
 
         rc = diag210((struct diag210 *) rdc_data);
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index c9583fbc2a7d..418b4e63a4fa 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -450,9 +450,9 @@ dasd_eckd_generate_uid(struct dasd_device *device, struct dasd_uid *uid)
         return 0;
 }
 
-struct dasd_ccw_req * dasd_eckd_build_rcd_lpm(struct dasd_device *device,
-                                              void *rcd_buffer,
-                                              struct ciw *ciw, __u8 lpm)
+static struct dasd_ccw_req *dasd_eckd_build_rcd_lpm(struct dasd_device *device,
+                                                    void *rcd_buffer,
+                                                    struct ciw *ciw, __u8 lpm)
 {
         struct dasd_ccw_req *cqr;
         struct ccw1 *ccw;
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 758cfb542865..672eb0a3dd0b 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -255,6 +255,7 @@ dasd_ioctl_information(struct dasd_device *device,
         unsigned long flags;
         int rc;
         struct ccw_device *cdev;
+        struct ccw_dev_id dev_id;
 
         if (!device->discipline->fill_info)
                 return -EINVAL;
@@ -270,8 +271,9 @@ dasd_ioctl_information(struct dasd_device *device,
         }
 
         cdev = device->cdev;
+        ccw_device_get_id(cdev, &dev_id);
 
-        dasd_info->devno = _ccw_device_get_device_number(device->cdev);
+        dasd_info->devno = dev_id.devno;
         dasd_info->schid = _ccw_device_get_subchannel_number(device->cdev);
         dasd_info->cu_type = cdev->id.cu_type;
         dasd_info->cu_model = cdev->id.cu_model;
diff --git a/drivers/s390/Kconfig b/drivers/s390/char/Kconfig
index 165af398fdea..66102a184322 100644
--- a/drivers/s390/Kconfig
+++ b/drivers/s390/char/Kconfig
@@ -1,69 +1,9 @@
-config CCW
-        bool
-        default y
-
-source "drivers/block/Kconfig"
-
-source "drivers/md/Kconfig"
-
-
-menu "Character device drivers"
-
-config UNIX98_PTYS
-        bool "Unix98 PTY support"
-        ---help---
-          A pseudo terminal (PTY) is a software device consisting of two
-          halves: a master and a slave. The slave device behaves identical to
-          a physical terminal; the master device is used by a process to
-          read data from and write data to the slave, thereby emulating a
-          terminal. Typical programs for the master side are telnet servers
-          and xterms.
-
-          Linux has traditionally used the BSD-like names /dev/ptyxx for
-          masters and /dev/ttyxx for slaves of pseudo terminals. This scheme
-          has a number of problems. The GNU C library glibc 2.1 and later,
-          however, supports the Unix98 naming standard: in order to acquire a
-          pseudo terminal, a process opens /dev/ptmx; the number of the pseudo
-          terminal is then made available to the process and the pseudo
-          terminal slave can be accessed as /dev/pts/<number>. What was
-          traditionally /dev/ttyp2 will then be /dev/pts/2, for example.
-
-          The entries in /dev/pts/ are created on the fly by a virtual
-          file system; therefore, if you say Y here you should say Y to
-          "/dev/pts file system for Unix98 PTYs" as well.
-
-          If you want to say Y here, you need to have the C library glibc 2.1
-          or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*").
-          Read the instructions in <file:Documentation/Changes> pertaining to
-          pseudo terminals. It's safe to say N.
-
-config UNIX98_PTY_COUNT
-        int "Maximum number of Unix98 PTYs in use (0-2048)"
-        depends on UNIX98_PTYS
-        default "256"
-        help
-          The maximum number of Unix98 PTYs that can be used at any one time.
-          The default is 256, and should be enough for desktop systems. Server
-          machines which support incoming telnet/rlogin/ssh connections and/or
-          serve several X terminals may want to increase this: every incoming
-          connection and every xterm uses up one PTY.
-
-          When not in use, each additional set of 256 PTYs occupy
-          approximately 8 KB of kernel memory on 32-bit architectures.
-
-config HANGCHECK_TIMER
-        tristate "Hangcheck timer"
-        help
-          The hangcheck-timer module detects when the system has gone
-          out to lunch past a certain margin.  It can reboot the system
-          or merely print a warning.
-
-source "drivers/char/watchdog/Kconfig"
-
 comment "S/390 character device drivers"
+        depends on S390
 
 config TN3270
         tristate "Support for locally attached 3270 terminals"
+        depends on CCW
         help
           Include support for IBM 3270 terminals.
 
@@ -88,6 +28,7 @@ config TN3270_CONSOLE
 
 config TN3215
         bool "Support for 3215 line mode terminal"
+        depends on CCW
         help
           Include support for IBM 3215 line-mode terminals.
 
@@ -99,12 +40,19 @@ config TN3215_CONSOLE
           Linux system console.
 
 config CCW_CONSOLE
-        bool
-        depends on TN3215_CONSOLE || TN3270_CONSOLE
-        default y
- 
+        bool
+        depends on TN3215_CONSOLE || TN3270_CONSOLE
+        default y
+
+config SCLP
+        bool "Support for SCLP"
+        depends on S390
+        help
+          Include support for the SCLP interface to the service element.
+
 config SCLP_TTY
         bool "Support for SCLP line mode terminal"
+        depends on SCLP
         help
           Include support for IBM SCLP line-mode terminals.
 
@@ -117,6 +65,7 @@ config SCLP_CONSOLE
 
 config SCLP_VT220_TTY
         bool "Support for SCLP VT220-compatible terminal"
+        depends on SCLP
         help
           Include support for an IBM SCLP VT220-compatible terminal.
 
@@ -129,6 +78,7 @@ config SCLP_VT220_CONSOLE
 
 config SCLP_CPI
         tristate "Control-Program Identification"
+        depends on SCLP
         help
           This option enables the hardware console interface for system
           identification. This is commonly used for workload management and
@@ -140,6 +90,7 @@ config SCLP_CPI
 
 config S390_TAPE
         tristate "S/390 tape device support"
+        depends on CCW
         help
           Select this option if you want to access channel-attached tape
           devices on IBM S/390 or zSeries.
@@ -194,6 +145,7 @@ config VMLOGRDR
 
 config VMCP
         tristate "Support for the z/VM CP interface (VM only)"
+        depends on S390
         help
           Select this option if you want to be able to interact with the control
           program on z/VM
@@ -207,33 +159,8 @@ config MONREADER
 
 config MONWRITER
         tristate "API for writing z/VM monitor service records"
+        depends on S390
         default "m"
         help
           Character device driver for writing z/VM monitor service records
 
-endmenu
-
-menu "Cryptographic devices"
-
-config ZCRYPT
-        tristate "Support for PCI-attached cryptographic adapters"
-        select ZCRYPT_MONOLITHIC if ZCRYPT="y"
-        default "m"
-        help
-          Select this option if you want to use a PCI-attached cryptographic
-          adapter like:
-          + PCI Cryptographic Accelerator (PCICA)
-          + PCI Cryptographic Coprocessor (PCICC)
-          + PCI-X Cryptographic Coprocessor (PCIXCC)
-          + Crypto Express2 Coprocessor (CEX2C)
-          + Crypto Express2 Accelerator (CEX2A)
-
-config ZCRYPT_MONOLITHIC
-        bool "Monolithic zcrypt module"
-        depends on ZCRYPT="m"
-        help
-          Select this option if you want to have a single module z90crypt.ko
-          that contains all parts of the crypto device driver (ap bus,
-          request router and all the card drivers).
-
-endmenu
diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c
index 8df7b1323c05..67009bfa093e 100644
--- a/drivers/s390/char/monreader.c
+++ b/drivers/s390/char/monreader.c
@@ -97,7 +97,7 @@ static u8 user_data_sever[16] = {
  * Create the 8 bytes EBCDIC DCSS segment name from
  * an ASCII name, incl. padding
  */
-static inline void dcss_mkname(char *ascii_name, char *ebcdic_name)
+static void dcss_mkname(char *ascii_name, char *ebcdic_name)
 {
         int i;
 
@@ -191,7 +191,7 @@ static inline u32 mon_rec_end(struct mon_msg *monmsg)
         return *((u32 *) (mon_mca_start(monmsg) + monmsg->mca_offset + 8));
 }
 
-static inline int mon_check_mca(struct mon_msg *monmsg)
+static int mon_check_mca(struct mon_msg *monmsg)
 {
         if ((mon_rec_end(monmsg) <= mon_rec_start(monmsg)) ||
             (mon_rec_start(monmsg) < mon_dcss_start) ||
@@ -209,8 +209,8 @@ static inline int mon_check_mca(struct mon_msg *monmsg)
         return 0;
 }
 
-static inline int mon_send_reply(struct mon_msg *monmsg,
-                                 struct mon_private *monpriv)
+static int mon_send_reply(struct mon_msg *monmsg,
+                          struct mon_private *monpriv)
 {
         int rc;
 
@@ -236,7 +236,7 @@ static inline int mon_send_reply(struct mon_msg *monmsg,
         return 0;
 }
 
-static inline void mon_free_mem(struct mon_private *monpriv)
+static void mon_free_mem(struct mon_private *monpriv)
 {
         int i;
 
@@ -246,7 +246,7 @@ static inline void mon_free_mem(struct mon_private *monpriv)
         kfree(monpriv);
 }
 
-static inline struct mon_private *mon_alloc_mem(void)
+static struct mon_private *mon_alloc_mem(void)
 {
         int i;
         struct mon_private *monpriv;
@@ -307,7 +307,7 @@ static inline void mon_next_mca(struct mon_msg *monmsg)
         monmsg->pos = 0;
 }
 
-static inline struct mon_msg *mon_next_message(struct mon_private *monpriv)
+static struct mon_msg *mon_next_message(struct mon_private *monpriv)
 {
         struct mon_msg *monmsg;
 
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 8facd14adb7c..f6ef90ee3e7d 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -589,9 +589,10 @@ static int
 __raw3270_size_device_vm(struct raw3270 *rp)
 {
         int rc, model;
+        struct ccw_dev_id dev_id;
 
-        raw3270_init_diag210.vrdcdvno = 
-                _ccw_device_get_device_number(rp->cdev);
+        ccw_device_get_id(rp->cdev, &dev_id);
+        raw3270_init_diag210.vrdcdvno = dev_id.devno;
         raw3270_init_diag210.vrdclen = sizeof(struct diag210);
         rc = diag210(&raw3270_init_diag210);
         if (rc)
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index 87ac4a3ad49d..dbb99d1b6f57 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -132,6 +132,9 @@ int sclp_deactivate(void);
 int sclp_reactivate(void);
 int sclp_service_call(sclp_cmdw_t command, void *sccb);
 
+int sclp_sdias_init(void);
+void sclp_sdias_exit(void);
+
 /* useful inlines */
 
 /* VM uses EBCDIC 037, LPAR+native(SE+HMC) use EBCDIC 500 */
diff --git a/drivers/s390/char/sclp_rw.c b/drivers/s390/char/sclp_rw.c
index bbd5b8b66f42..d6b06ab81188 100644
--- a/drivers/s390/char/sclp_rw.c
+++ b/drivers/s390/char/sclp_rw.c
@@ -23,7 +23,7 @@
 
 /*
  * The room for the SCCB (only for writing) is not equal to a pages size
- * (as it is specified as the maximum size in the the SCLP documentation)
+ * (as it is specified as the maximum size in the SCLP documentation)
  * because of the additional data structure described above.
  */
 #define MAX_SCCB_ROOM (PAGE_SIZE - sizeof(struct sclp_buffer))
diff --git a/drivers/s390/char/sclp_sdias.c b/drivers/s390/char/sclp_sdias.c
index 52283daddaef..1c064976b32b 100644
--- a/drivers/s390/char/sclp_sdias.c
+++ b/drivers/s390/char/sclp_sdias.c
@@ -66,9 +66,9 @@ static DEFINE_MUTEX(sdias_mutex);
 
 static void sdias_callback(struct sclp_req *request, void *data)
 {
-        struct sdias_sccb *sccb;
+        struct sdias_sccb *cbsccb;
 
-        sccb = (struct sdias_sccb *) request->sccb;
+        cbsccb = (struct sdias_sccb *) request->sccb;
         sclp_req_done = 1;
         wake_up(&sdias_wq); /* Inform caller, that request is complete */
         TRACE("callback done\n");
@@ -229,7 +229,7 @@ out:
         return rc;
 }
 
-int __init sdias_init(void)
+int __init sclp_sdias_init(void)
 {
         int rc;
 
@@ -248,7 +248,7 @@ int __init sdias_init(void)
         return 0;
 }
 
-void __exit sdias_exit(void)
+void __exit sclp_sdias_exit(void)
 {
         debug_unregister(sdias_dbf);
         sclp_unregister(&sclp_sdias_register);
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index 89d439316a53..66eb0688d523 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -21,6 +21,7 @@
 #include <asm/debug.h>
 #include <asm/processor.h>
 #include <asm/irqflags.h>
+#include "sclp.h"
 
 #define TRACE(x...) debug_sprintf_event(zcore_dbf, 1, x)
 #define MSG(x...) printk( KERN_ALERT x )
@@ -564,8 +565,6 @@ static void __init zcore_header_init(int arch, struct zcore_header *hdr)
         get_cpu_id(&hdr->cpu_id);
 }
 
-extern int sdias_init(void);
-
 static int __init zcore_init(void)
 {
         unsigned char arch;
@@ -582,7 +581,7 @@ static int __init zcore_init(void)
         TRACE("wwpn:   %llx\n", (unsigned long long) ipl_info.data.fcp.wwpn);
         TRACE("lun:    %llx\n", (unsigned long long) ipl_info.data.fcp.lun);
 
-        rc = sdias_init();
+        rc = sclp_sdias_init();
         if (rc)
                 goto fail;
 
@@ -634,12 +633,10 @@ fail:
         return rc;
 }
 
-extern void sdias_exit(void);
-
 static void __exit zcore_exit(void)
 {
         debug_unregister(zcore_dbf);
-        sdias_exit();
+        sclp_sdias_exit();
         diag308(DIAG308_REL_HSA, NULL);
 }
 
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 27c6d9e55b23..dfca0ef139fd 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -191,8 +191,7 @@ static int css_register_subchannel(struct subchannel *sch)
         return ret;
 }
 
-int
-css_probe_device(struct subchannel_id schid)
+static int css_probe_device(struct subchannel_id schid)
 {
         int ret;
         struct subchannel *sch;
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 71fcfdc42800..ed7977531c3f 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -138,9 +138,7 @@ struct css_driver {
  * all css_drivers have the css_bus_type
  */
 extern struct bus_type css_bus_type;
-extern struct css_driver io_subchannel_driver;
 
-extern int css_probe_device(struct subchannel_id);
 extern int css_sch_device_register(struct subchannel *);
 extern void css_sch_device_unregister(struct subchannel *);
 extern struct subchannel * get_subchannel_by_schid(struct subchannel_id);
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index a23ff582db9d..a8b373f69cf0 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -129,7 +129,7 @@ static void io_subchannel_verify(struct device *);
 static void io_subchannel_ioterm(struct device *);
 static void io_subchannel_shutdown(struct subchannel *);
 
-struct css_driver io_subchannel_driver = {
+static struct css_driver io_subchannel_driver = {
         .subchannel_type = SUBCHANNEL_TYPE_IO,
         .drv = {
                 .name = "io_subchannel",
@@ -546,7 +546,7 @@ static struct attribute_group ccwdev_attr_group = {
         .attrs = ccwdev_attrs,
 };
 
-struct attribute_group *ccwdev_attr_groups[] = {
+static struct attribute_group *ccwdev_attr_groups[] = {
         &ccwdev_attr_group,
         NULL,
 };
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index 16f59fcb66b1..a5d263fb55ae 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -616,6 +616,17 @@ ccw_device_get_chp_desc(struct ccw_device *cdev, int chp_no)
         return chp_get_chp_desc(chpid);
 }
 
+/**
+ * ccw_device_get_id - obtain a ccw device id
+ * @cdev: device to obtain the id for
+ * @dev_id: where to fill in the values
+ */
+void ccw_device_get_id(struct ccw_device *cdev, struct ccw_dev_id *dev_id)
+{
+        *dev_id = cdev->private->dev_id;
+}
+EXPORT_SYMBOL(ccw_device_get_id);
+
 // FIXME: these have to go:
 
 int
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index f770018fe1d5..e70aeb7a3781 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -1983,6 +1983,7 @@ qdio_handle_pci(struct qdio_irq *irq_ptr)
                 if (q->is_input_q&QDIO_FLAG_NO_INPUT_INTERRUPT_CONTEXT)
                         qdio_mark_q(q);
                 else {
+                        qdio_perf_stat_dec(&perf_stats.tl_runs);
                         __qdio_inbound_processing(q);
                 }
         }
diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig
index f98fa465df0a..eada69dec4fe 100644
--- a/drivers/s390/net/Kconfig
+++ b/drivers/s390/net/Kconfig
@@ -3,7 +3,7 @@ menu "S/390 network device drivers"
 
 config LCS
         tristate "Lan Channel Station Interface"
-        depends on NETDEVICES && (NET_ETHERNET || TR || FDDI)
+        depends on CCW && NETDEVICES && (NET_ETHERNET || TR || FDDI)
         help
            Select this option if you want to use LCS networking  on IBM S/390
            or zSeries. This device driver supports Token Ring (IEEE 802.5),
@@ -13,7 +13,7 @@ config LCS
 
 config CTC
         tristate "CTC device support"
-        depends on NETDEVICES
+        depends on CCW && NETDEVICES
         help
           Select this option if you want to use channel-to-channel networking
           on IBM S/390 or zSeries. This device driver supports real CTC
@@ -42,7 +42,7 @@ config SMSGIUCV
 
 config CLAW
         tristate "CLAW device support"
-        depends on NETDEVICES
+        depends on CCW && NETDEVICES
         help
           This driver supports channel attached CLAW devices.
           CLAW is Common Link Access for Workstation.  Common devices
@@ -52,7 +52,7 @@ config CLAW
 
 config QETH
         tristate "Gigabit Ethernet device support"
-        depends on NETDEVICES && IP_MULTICAST && QDIO
+        depends on CCW && NETDEVICES && IP_MULTICAST && QDIO
         help
           This driver supports the IBM S/390 and zSeries OSA Express adapters
           in QDIO mode (all media types), HiperSockets interfaces and VM GuestLAN
diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c
index 29d176036e5c..0b96d49dd636 100644
--- a/drivers/s390/net/qeth_main.c
+++ b/drivers/s390/net/qeth_main.c
@@ -2860,7 +2860,7 @@ qeth_flush_buffers(struct qeth_qdio_out_q *queue, int under_int,
                         if (!atomic_read(&queue->set_pci_flags_count)){
                                 /*
                                  * there's no outstanding PCI any more, so we
-                                 * have to request a PCI to be sure the the PCI
+                                 * have to request a PCI to be sure that the PCI
                                  * will wake at some time in the future then we
                                  * can flush packed buffers that might still be
                                  * hanging around, which can happen if no
diff --git a/drivers/s390/net/qeth_mpc.c b/drivers/s390/net/qeth_mpc.c
index f54fdfdbf06f..f29a4bc4f6f2 100644
--- a/drivers/s390/net/qeth_mpc.c
+++ b/drivers/s390/net/qeth_mpc.c
@@ -162,7 +162,7 @@ struct ipa_rc_msg {
         char *msg;
 };
 
-struct ipa_rc_msg qeth_ipa_rc_msg[] = {
+static struct ipa_rc_msg qeth_ipa_rc_msg[] = {
         {IPA_RC_SUCCESS,                "success"},
         {IPA_RC_NOTSUPP,                "Command not supported"},
         {IPA_RC_IP_TABLE_FULL,          "Add Addr IP Table Full - ipv6"},
@@ -226,7 +226,7 @@ struct ipa_cmd_names {
         char *name;
 };
 
-struct ipa_cmd_names qeth_ipa_cmd_names[] = {
+static struct ipa_cmd_names qeth_ipa_cmd_names[] = {
         {IPA_CMD_STARTLAN,      "startlan"},
         {IPA_CMD_STOPLAN,       "stoplan"},
         {IPA_CMD_SETVMAC,       "setvmac"},
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 324899c96efe..ddff40c4212c 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -607,8 +607,7 @@ zfcp_sg_list_free(struct zfcp_sg_list *sg_list)
  * @sg_count: elements in array
  * Return: size of entire scatter-gather list
  */
-size_t
-zfcp_sg_size(struct scatterlist *sg, unsigned int sg_count)
+static size_t zfcp_sg_size(struct scatterlist *sg, unsigned int sg_count)
 {
         unsigned int i;
         struct scatterlist *p;
@@ -975,8 +974,7 @@ zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)
                 mempool_destroy(adapter->pool.data_gid_pn);
 }
 
-void
-zfcp_dummy_release(struct device *dev)
+static void zfcp_dummy_release(struct device *dev)
 {
         return;
 }
@@ -1336,7 +1334,7 @@ zfcp_nameserver_enqueue(struct zfcp_adapter *adapter)
 
 #define ZFCP_LOG_AREA                   ZFCP_LOG_AREA_FC
 
-void
+static void
 zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
                            struct fsf_status_read_buffer *status_buffer)
 {
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index d8191d115c14..5f3212440f68 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -478,7 +478,7 @@ static struct debug_view zfcp_hba_dbf_view = {
         NULL
 };
 
-void
+static void
 _zfcp_san_dbf_event_common_ct(const char *tag, struct zfcp_fsf_req *fsf_req,
                               u32 s_id, u32 d_id, void *buffer, int buflen)
 {
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index cb08ca3cc0f9..bdf5782b8a7a 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -222,7 +222,7 @@ zfcp_qdio_handler_error_check(struct zfcp_adapter *adapter, unsigned int status,
                 * Since we have been using this adapter, it is save to assume
                 * that it is not failed but recoverable. The card seems to
                 * report link-up events by self-initiated queue shutdown.
-                * That is why we need to clear the the link-down flag
+                * That is why we need to clear the link-down flag
                 * which is set again in case we have missed by a mile.
                 */
                zfcp_erp_adapter_reopen(
diff --git a/drivers/sbus/char/bpp.c b/drivers/sbus/char/bpp.c
index 74b999d77bbf..4fab0c23814c 100644
--- a/drivers/sbus/char/bpp.c
+++ b/drivers/sbus/char/bpp.c
@@ -156,7 +156,7 @@ static unsigned short get_pins(unsigned minor)
 #define BPP_ICR      0x18
 #define BPP_SIZE     0x1A
 
-/* BPP_CSR.  Bits of type RW1 are cleared with writting '1'. */
+/* BPP_CSR.  Bits of type RW1 are cleared with writing '1'. */
 #define P_DEV_ID_MASK   0xf0000000      /* R   */
 #define P_DEV_ID_ZEBRA  0x40000000
 #define P_DEV_ID_L64854 0xa0000000      /*      == NCR 89C100+89C105. Pity. */
diff --git a/drivers/scsi/aic7xxx/aic79xx_pci.c b/drivers/scsi/aic7xxx/aic79xx_pci.c
index 8d72bbae96ad..0bada0028aa0 100644
--- a/drivers/scsi/aic7xxx/aic79xx_pci.c
+++ b/drivers/scsi/aic7xxx/aic79xx_pci.c
@@ -966,7 +966,7 @@ ahd_aic790X_setup(struct ahd_softc *ahd)
                               |  AHD_BUSFREEREV_BUG;
                 ahd->bugs |= AHD_LQOOVERRUN_BUG|AHD_EARLY_REQ_BUG;
 
-                /* If the user requested the the SLOWCRC bit to be set. */
+                /* If the user requested that the SLOWCRC bit to be set. */
                 if (aic79xx_slowcrc)
                         ahd->features |= AHD_AIC79XXB_SLOWCRC;
 
diff --git a/drivers/scsi/aic94xx/Makefile b/drivers/scsi/aic94xx/Makefile
index e6b70123940c..e78ce0fa44d2 100644
--- a/drivers/scsi/aic94xx/Makefile
+++ b/drivers/scsi/aic94xx/Makefile
@@ -6,7 +6,7 @@
 #
 # This file is licensed under GPLv2.
 #
-# This file is part of the the aic94xx driver.
+# This file is part of the aic94xx driver.
 #
 # The aic94xx driver is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License as
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index a965ed3548d5..564ea90ed3a0 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -541,7 +541,7 @@ static struct ParameterData __devinitdata cfg_data[] = {
 
 
 /*
- * Safe settings. If set to zero the the BIOS/default values with
+ * Safe settings. If set to zero the BIOS/default values with
  * command line overrides will be used. If set to 1 then safe and
  * slow settings will be used.
  */
@@ -617,7 +617,7 @@ static void __devinit fix_settings(void)
 
 /*
  * Mapping from the eeprom delay index value (index into this array)
- * to the the number of actual seconds that the delay should be for.
+ * to the number of actual seconds that the delay should be for.
  */
 static char __devinitdata eeprom_index_to_delay_map[] = 
         { 1, 3, 5, 10, 16, 30, 60, 120 };
@@ -4136,7 +4136,7 @@ static void __devinit trms1040_write_all(struct NvRamType *eeprom, unsigned long
  * @io_port:    base I/O address
  * @addr:       offset into SEEPROM
  *
- * Returns the the byte read.
+ * Returns the byte read.
  **/
 static u8 __devinit trms1040_get_data(unsigned long io_port, u8 addr)
 {
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 2b5b8a93bc10..8263f752809d 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -721,19 +721,23 @@ static ide_startstop_t idescsi_do_request (ide_drive_t *drive, struct request *r
         return ide_stopped;
 }
 
+#ifdef CONFIG_IDE_PROC_FS
 static void idescsi_add_settings(ide_drive_t *drive)
 {
         idescsi_scsi_t *scsi = drive_to_idescsi(drive);
 
 /*
- *                      drive   setting name    read/write      ioctl   ioctl           data type       min     max     mul_factor      div_factor      data pointer            set function
+ *                      drive   setting name    read/write      data type       min     max     mul_factor      div_factor      data pointer            set function
  */
-        ide_add_setting(drive,  "bios_cyl",     SETTING_RW,     -1,     -1,             TYPE_INT,       0,      1023,   1,              1,              &drive->bios_cyl,       NULL);
-        ide_add_setting(drive,  "bios_head",    SETTING_RW,     -1,     -1,             TYPE_BYTE,      0,      255,    1,              1,              &drive->bios_head,      NULL);
-        ide_add_setting(drive,  "bios_sect",    SETTING_RW,     -1,     -1,             TYPE_BYTE,      0,      63,     1,              1,              &drive->bios_sect,      NULL);
-        ide_add_setting(drive,  "transform",    SETTING_RW,     -1,     -1,             TYPE_INT,       0,      3,      1,              1,              &scsi->transform,       NULL);
-        ide_add_setting(drive,  "log",          SETTING_RW,     -1,     -1,             TYPE_INT,       0,      1,      1,              1,              &scsi->log,             NULL);
+        ide_add_setting(drive,  "bios_cyl",     SETTING_RW,     TYPE_INT,       0,      1023,   1,              1,              &drive->bios_cyl,       NULL);
+        ide_add_setting(drive,  "bios_head",    SETTING_RW,     TYPE_BYTE,      0,      255,    1,              1,              &drive->bios_head,      NULL);
+        ide_add_setting(drive,  "bios_sect",    SETTING_RW,     TYPE_BYTE,      0,      63,     1,              1,              &drive->bios_sect,      NULL);
+        ide_add_setting(drive,  "transform",    SETTING_RW,     TYPE_INT,       0,      3,      1,              1,              &scsi->transform,       NULL);
+        ide_add_setting(drive,  "log",          SETTING_RW,     TYPE_INT,       0,      1,      1,              1,              &scsi->log,             NULL);
 }
+#else
+static inline void idescsi_add_settings(ide_drive_t *drive) { ; }
+#endif
 
 /*
  *      Driver initialization.
@@ -756,7 +760,7 @@ static void ide_scsi_remove(ide_drive_t *drive)
         struct ide_scsi_obj *scsi = scsihost_to_idescsi(scsihost);
         struct gendisk *g = scsi->disk;
 
-        ide_unregister_subdriver(drive, scsi->driver);
+        ide_proc_unregister_driver(drive, scsi->driver);
 
         ide_unregister_region(g);
 
@@ -770,13 +774,11 @@ static void ide_scsi_remove(ide_drive_t *drive)
 
 static int ide_scsi_probe(ide_drive_t *);
 
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_IDE_PROC_FS
 static ide_proc_entry_t idescsi_proc[] = {
         { "capacity", S_IFREG|S_IRUGO, proc_ide_read_capacity, NULL },
         { NULL, 0, NULL, NULL }
 };
-#else
-# define idescsi_proc   NULL
 #endif
 
 static ide_driver_t idescsi_driver = {
@@ -790,11 +792,13 @@ static ide_driver_t idescsi_driver = {
         .version                = IDESCSI_VERSION,
         .media                  = ide_scsi,
         .supports_dsc_overlap   = 0,
-        .proc                   = idescsi_proc,
         .do_request             = idescsi_do_request,
         .end_request            = idescsi_end_request,
         .error                  = idescsi_atapi_error,
         .abort                  = idescsi_atapi_abort,
+#ifdef CONFIG_IDE_PROC_FS
+        .proc                   = idescsi_proc,
+#endif
 };
 
 static int idescsi_ide_open(struct inode *inode, struct file *filp)
@@ -1153,7 +1157,7 @@ static int ide_scsi_probe(ide_drive_t *drive)
         idescsi->host = host;
         idescsi->disk = g;
         g->private_data = &idescsi->driver;
-        ide_register_subdriver(drive, &idescsi_driver);
+        ide_proc_register_driver(drive, &idescsi_driver);
         err = 0;
         idescsi_setup(drive, idescsi);
         g->fops = &idescsi_ops;
@@ -1165,7 +1169,7 @@ static int ide_scsi_probe(ide_drive_t *drive)
         }
         /* fall through on error */
         ide_unregister_region(g);
-        ide_unregister_subdriver(drive, &idescsi_driver);
+        ide_proc_unregister_driver(drive, &idescsi_driver);
 
         put_disk(g);
 out_host_put:
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 61fbcdcbb009..1f5a07bf2a75 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -173,7 +173,7 @@ int scsi_queue_insert(struct scsi_cmnd *cmd, int reason)
  * @retries:    number of times to retry request
  * @flags:      or into request flags;
  *
- * returns the req->errors value which is the the scsi_cmnd result
+ * returns the req->errors value which is the scsi_cmnd result
  * field.
  **/
 int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index e8efe938c4e7..a6f5bfbb777b 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -5,6 +5,7 @@
 #
 
 menu "Serial drivers"
+        depends on HAS_IOMEM
 
 #
 # The new 8250/16550 serial drivers
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 07c587ec71be..7c9d37f651e3 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -6,6 +6,7 @@
 # fully appropriate there, so it'd need some thought to do well.
 #
 menu "SPI support"
+        depends on HAS_IOMEM
 
 config SPI
         bool "SPI support"
diff --git a/drivers/spi/atmel_spi.c b/drivers/spi/atmel_spi.c
index 66e7bc985797..1d8a2f6bb8eb 100644
--- a/drivers/spi/atmel_spi.c
+++ b/drivers/spi/atmel_spi.c
@@ -22,10 +22,7 @@
 #include <asm/io.h>
 #include <asm/arch/board.h>
 #include <asm/arch/gpio.h>
-
-#ifdef CONFIG_ARCH_AT91
 #include <asm/arch/cpu.h>
-#endif
 
 #include "atmel_spi.h"
 
@@ -552,10 +549,8 @@ static int __init atmel_spi_probe(struct platform_device *pdev)
                 goto out_free_buffer;
         as->irq = irq;
         as->clk = clk;
-#ifdef CONFIG_ARCH_AT91
         if (!cpu_is_at91rm9200())
                 as->new_1 = 1;
-#endif
 
         ret = request_irq(irq, atmel_spi_interrupt, 0,
                         pdev->dev.bus_id, master);
diff --git a/drivers/telephony/Kconfig b/drivers/telephony/Kconfig
index 7625b1816baf..dd1d6a53f3c0 100644
--- a/drivers/telephony/Kconfig
+++ b/drivers/telephony/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "Telephony Support"
+        depends on HAS_IOMEM
 
 config PHONE
         tristate "Linux telephony support"
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index b847bbc8b0e1..15499b7e33f4 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "USB support"
+        depends on HAS_IOMEM
 
 # Host-side USB depends on having a host controller
 # NOTE:  dummy_hcd is always an option, but it's ignored here ...
@@ -87,8 +88,6 @@ source "drivers/usb/storage/Kconfig"
 
 source "drivers/usb/image/Kconfig"
 
-source "drivers/usb/net/Kconfig"
-
 source "drivers/usb/mon/Kconfig"
 
 comment "USB port drivers"
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 0ef090b1b37c..72464b586990 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -23,13 +23,6 @@ obj-$(CONFIG_USB_PRINTER)	+= class/
 obj-$(CONFIG_USB_STORAGE)       += storage/
 obj-$(CONFIG_USB)               += storage/
 
-obj-$(CONFIG_USB_CATC)          += net/
-obj-$(CONFIG_USB_KAWETH)        += net/
-obj-$(CONFIG_USB_PEGASUS)       += net/
-obj-$(CONFIG_USB_RTL8150)       += net/
-obj-$(CONFIG_USB_USBNET)        += net/
-obj-$(CONFIG_USB_ZD1201)        += net/
-
 obj-$(CONFIG_USB_MDC800)        += image/
 obj-$(CONFIG_USB_MICROTEK)      += image/
 
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index b082d95bbbaa..11e9b15ca45a 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -1033,7 +1033,7 @@ static int usbatm_do_heavy_init(void *arg)
 
 static int usbatm_heavy_init(struct usbatm_data *instance)
 {
-        int ret = kernel_thread(usbatm_do_heavy_init, instance, CLONE_KERNEL);
+        int ret = kernel_thread(usbatm_do_heavy_init, instance, CLONE_FS | CLONE_FILES);
 
         if (ret < 0) {
                 usb_err(instance, "%s: failed to create kernel_thread (%d)!\n", __func__, ret);
diff --git a/drivers/usb/misc/auerswald.c b/drivers/usb/misc/auerswald.c
index b5332e679c46..88fb56d5db8f 100644
--- a/drivers/usb/misc/auerswald.c
+++ b/drivers/usb/misc/auerswald.c
@@ -1307,7 +1307,7 @@ static int auerswald_addservice (pauerswald_t cp, pauerscon_t scp)
 }
 
 
-/* remove a service from the the device
+/* remove a service from the device
    scp->id must be set! */
 static void auerswald_removeservice (pauerswald_t cp, pauerscon_t scp)
 {
diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
index ba5d1dc03036..3efe67092f15 100644
--- a/drivers/usb/serial/Kconfig
+++ b/drivers/usb/serial/Kconfig
@@ -558,7 +558,7 @@ config USB_SERIAL_DEBUG
         tristate "USB Debugging Device"
         depends on USB_SERIAL
         help
-          Say Y here if you have a USB debugging device used to recieve
+          Say Y here if you have a USB debugging device used to receive
           debugging data from another machine.  The most common of these
           devices is the NetChip TurboCONNECT device.
 
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index b675735bfbee..fbc8c27d5d99 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -9,7 +9,7 @@
  * The device works as an standard CDC device, it has 2 interfaces, the first
  * one is for firmware access and the second is the serial one.
  * The protocol is very simply, there are two posibilities reading or writing.
- * When writting the first urb must have a Header that starts with 0x20 0x29 the
+ * When writing the first urb must have a Header that starts with 0x20 0x29 the
  * next two bytes must say how much data will be sended.
  * When reading the process is almost equal except that the header starts with
  * 0x00 0x20.
@@ -18,7 +18,7 @@
  * buffer: The First and Second byte is used for a Header, the Third and Fourth
  * tells the  device the amount of information the package holds.
  * Packages are 60 bytes long Header Stuff.
- * When writting to the device the first two bytes of the header are 0x20 0x29
+ * When writing to the device the first two bytes of the header are 0x20 0x29
  * When reading the bytes are 0x00 0x20, or 0x00 0x10, there is an strange
  * situation, when too much data arrives to the device because it sends the data
  * but with out the header. I will use a simply hack to override this situation,
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 18f74ac76565..4807f960150b 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -2465,7 +2465,7 @@ static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 r
             ((edge_serial->is_epic) &&
              (!edge_serial->epic_descriptor.Supports.IOSPWriteMCR) &&
              (regNum == MCR))) {
-                dbg("SendCmdWriteUartReg - Not writting to MCR Register");
+                dbg("SendCmdWriteUartReg - Not writing to MCR Register");
                 return 0;
         }
 
@@ -2473,7 +2473,7 @@ static int send_cmd_write_uart_register (struct edgeport_port *edge_port, __u8 r
             ((edge_serial->is_epic) &&
              (!edge_serial->epic_descriptor.Supports.IOSPWriteLCR) &&
              (regNum == LCR))) {
-                dbg ("SendCmdWriteUartReg - Not writting to LCR Register");
+                dbg ("SendCmdWriteUartReg - Not writing to LCR Register");
                 return 0;
         }
 
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 1132ba5ff391..f54438828cb9 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -3,6 +3,7 @@
 #
 
 menu "Graphics support"
+        depends on HAS_IOMEM
 
 source "drivers/video/backlight/Kconfig"
 source "drivers/video/display/Kconfig"
@@ -1348,6 +1349,20 @@ config FB_VOODOO1
           Please read the <file:Documentation/fb/README-sstfb.txt> for supported
           options and other important info  support.
 
+config FB_VT8623
+        tristate "VIA VT8623 support"
+        depends on FB && PCI
+        select FB_CFB_FILLRECT
+        select FB_CFB_COPYAREA
+        select FB_CFB_IMAGEBLIT
+        select FB_TILEBLITTING
+        select FB_SVGALIB
+        select VGASTATE
+        select FONT_8x16 if FRAMEBUFFER_CONSOLE
+        ---help---
+          Driver for CastleRock integrated graphics core in the
+          VIA VT8623 [Apollo CLE266] chipset.
+
 config FB_CYBLA
         tristate "Cyberblade/i1 support"
         depends on FB && PCI && X86_32 && !64BIT
@@ -1401,6 +1416,20 @@ config FB_TRIDENT_ACCEL
         This will compile the Trident frame buffer device with
         acceleration functions.
 
+config FB_ARK
+        tristate "ARK 2000PV support"
+        depends on FB && PCI
+        select FB_CFB_FILLRECT
+        select FB_CFB_COPYAREA
+        select FB_CFB_IMAGEBLIT
+        select FB_TILEBLITTING
+        select FB_SVGALIB
+        select VGASTATE
+        select FONT_8x16 if FRAMEBUFFER_CONSOLE
+        ---help---
+          Driver for PCI graphics boards with ARK 2000PV chip
+          and ICS 5342 RAMDAC.
+
 config FB_PM3
         tristate "Permedia3 support"
         depends on FB && PCI && BROKEN
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index a916c204274f..0b70567458fb 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -54,10 +54,12 @@ obj-$(CONFIG_FB_VALKYRIE)         += valkyriefb.o
 obj-$(CONFIG_FB_CT65550)          += chipsfb.o
 obj-$(CONFIG_FB_IMSTT)            += imsttfb.o
 obj-$(CONFIG_FB_FM2)              += fm2fb.o
+obj-$(CONFIG_FB_VT8623)           += vt8623fb.o
 obj-$(CONFIG_FB_CYBLA)            += cyblafb.o
 obj-$(CONFIG_FB_TRIDENT)          += tridentfb.o
 obj-$(CONFIG_FB_LE80578)          += vermilion/
 obj-$(CONFIG_FB_S3)               += s3fb.o
+obj-$(CONFIG_FB_ARK)              += arkfb.o
 obj-$(CONFIG_FB_STI)              += stifb.o
 obj-$(CONFIG_FB_FFB)              += ffb.o sbuslib.o
 obj-$(CONFIG_FB_CG6)              += cg6.o sbuslib.o
diff --git a/drivers/video/arkfb.c b/drivers/video/arkfb.c
new file mode 100644
index 000000000000..ba6fede5c466
--- /dev/null
+++ b/drivers/video/arkfb.c
@@ -0,0 +1,1200 @@
+/*
+ *  linux/drivers/video/arkfb.c -- Frame buffer device driver for ARK 2000PV
+ *  with ICS 5342 dac (it is easy to add support for different dacs).
+ *
+ *  Copyright (c) 2007 Ondrej Zajicek <santiago@crfreenet.org>
+ *
+ *  This file is subject to the terms and conditions of the GNU General Public
+ *  License.  See the file COPYING in the main directory of this archive for
+ *  more details.
+ *
+ *  Code is based on s3fb
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/svga.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/console.h> /* Why should fb driver call console functions? because acquire_console_sem() */
+#include <video/vga.h>
+
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+
+struct arkfb_info {
+        int mclk_freq;
+        int mtrr_reg;
+
+        struct dac_info *dac;
+        struct vgastate state;
+        struct mutex open_lock;
+        unsigned int ref_count;
+        u32 pseudo_palette[16];
+};
+
+
+/* ------------------------------------------------------------------------- */
+
+
+static const struct svga_fb_format arkfb_formats[] = {
+        { 0,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 0,
+                FB_TYPE_TEXT, FB_AUX_TEXT_SVGA_STEP4,   FB_VISUAL_PSEUDOCOLOR, 8, 8},
+        { 4,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_PSEUDOCOLOR, 8, 16},
+        { 4,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 1,
+                FB_TYPE_INTERLEAVED_PLANES, 1,          FB_VISUAL_PSEUDOCOLOR, 8, 16},
+        { 8,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_PSEUDOCOLOR, 8, 8},
+        {16,  {10, 5, 0}, {5, 5, 0},  {0, 5, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_TRUECOLOR, 4, 4},
+        {16,  {11, 5, 0}, {5, 6, 0},  {0, 5, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_TRUECOLOR, 4, 4},
+        {24,  {16, 8, 0}, {8, 8, 0},  {0, 8, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_TRUECOLOR, 8, 8},
+        {32,  {16, 8, 0}, {8, 8, 0},  {0, 8, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_TRUECOLOR, 2, 2},
+        SVGA_FORMAT_END
+};
+
+
+/* CRT timing register sets */
+
+static const struct vga_regset ark_h_total_regs[]        = {{0x00, 0, 7}, {0x41, 7, 7}, VGA_REGSET_END};
+static const struct vga_regset ark_h_display_regs[]      = {{0x01, 0, 7}, {0x41, 6, 6}, VGA_REGSET_END};
+static const struct vga_regset ark_h_blank_start_regs[]  = {{0x02, 0, 7}, {0x41, 5, 5}, VGA_REGSET_END};
+static const struct vga_regset ark_h_blank_end_regs[]    = {{0x03, 0, 4}, {0x05, 7, 7   }, VGA_REGSET_END};
+static const struct vga_regset ark_h_sync_start_regs[]   = {{0x04, 0, 7}, {0x41, 4, 4}, VGA_REGSET_END};
+static const struct vga_regset ark_h_sync_end_regs[]     = {{0x05, 0, 4}, VGA_REGSET_END};
+
+static const struct vga_regset ark_v_total_regs[]        = {{0x06, 0, 7}, {0x07, 0, 0}, {0x07, 5, 5}, {0x40, 7, 7}, VGA_REGSET_END};
+static const struct vga_regset ark_v_display_regs[]      = {{0x12, 0, 7}, {0x07, 1, 1}, {0x07, 6, 6}, {0x40, 6, 6}, VGA_REGSET_END};
+static const struct vga_regset ark_v_blank_start_regs[]  = {{0x15, 0, 7}, {0x07, 3, 3}, {0x09, 5, 5}, {0x40, 5, 5}, VGA_REGSET_END};
+// const struct vga_regset ark_v_blank_end_regs[]    = {{0x16, 0, 6}, VGA_REGSET_END};
+static const struct vga_regset ark_v_blank_end_regs[]    = {{0x16, 0, 7}, VGA_REGSET_END};
+static const struct vga_regset ark_v_sync_start_regs[]   = {{0x10, 0, 7}, {0x07, 2, 2}, {0x07, 7, 7}, {0x40, 4, 4}, VGA_REGSET_END};
+static const struct vga_regset ark_v_sync_end_regs[]     = {{0x11, 0, 3}, VGA_REGSET_END};
+
+static const struct vga_regset ark_line_compare_regs[]   = {{0x18, 0, 7}, {0x07, 4, 4}, {0x09, 6, 6}, VGA_REGSET_END};
+static const struct vga_regset ark_start_address_regs[]  = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x40, 0, 2}, VGA_REGSET_END};
+static const struct vga_regset ark_offset_regs[]         = {{0x13, 0, 7}, {0x41, 3, 3}, VGA_REGSET_END};
+
+static const struct svga_timing_regs ark_timing_regs     = {
+        ark_h_total_regs, ark_h_display_regs, ark_h_blank_start_regs,
+        ark_h_blank_end_regs, ark_h_sync_start_regs, ark_h_sync_end_regs,
+        ark_v_total_regs, ark_v_display_regs, ark_v_blank_start_regs,
+        ark_v_blank_end_regs, ark_v_sync_start_regs, ark_v_sync_end_regs,
+};
+
+
+/* ------------------------------------------------------------------------- */
+
+
+/* Module parameters */
+
+static char *mode = "640x480-8@60";
+
+#ifdef CONFIG_MTRR
+static int mtrr = 1;
+#endif
+
+MODULE_AUTHOR("(c) 2007 Ondrej Zajicek <santiago@crfreenet.org>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("fbdev driver for ARK 2000PV");
+
+module_param(mode, charp, 0444);
+MODULE_PARM_DESC(mode, "Default video mode ('640x480-8@60', etc)");
+
+#ifdef CONFIG_MTRR
+module_param(mtrr, int, 0444);
+MODULE_PARM_DESC(mtrr, "Enable write-combining with MTRR (1=enable, 0=disable, default=1)");
+#endif
+
+static int threshold = 4;
+
+module_param(threshold, int, 0644);
+MODULE_PARM_DESC(threshold, "FIFO threshold");
+
+
+/* ------------------------------------------------------------------------- */
+
+
+static void arkfb_settile(struct fb_info *info, struct fb_tilemap *map)
+{
+        const u8 *font = map->data;
+        u8 __iomem *fb = (u8 __iomem *)info->screen_base;
+        int i, c;
+
+        if ((map->width != 8) || (map->height != 16) ||
+            (map->depth != 1) || (map->length != 256)) {
+                printk(KERN_ERR "fb%d: unsupported font parameters: width %d, "
+                       "height %d, depth %d, length %d\n", info->node,
+                       map->width, map->height, map->depth, map->length);
+                return;
+        }
+
+        fb += 2;
+        for (c = 0; c < map->length; c++) {
+                for (i = 0; i < map->height; i++) {
+                        fb_writeb(font[i], &fb[i * 4]);
+                        fb_writeb(font[i], &fb[i * 4 + (128 * 8)]);
+                }
+                fb += 128;
+
+                if ((c % 8) == 7)
+                        fb += 128*8;
+
+                font += map->height;
+        }
+}
+
+static struct fb_tile_ops arkfb_tile_ops = {
+        .fb_settile     = arkfb_settile,
+        .fb_tilecopy    = svga_tilecopy,
+        .fb_tilefill    = svga_tilefill,
+        .fb_tileblit    = svga_tileblit,
+        .fb_tilecursor  = svga_tilecursor,
+        .fb_get_tilemax = svga_get_tilemax,
+};
+
+
+/* ------------------------------------------------------------------------- */
+
+
+/* image data is MSB-first, fb structure is MSB-first too */
+static inline u32 expand_color(u32 c)
+{
+        return ((c & 1) | ((c & 2) << 7) | ((c & 4) << 14) | ((c & 8) << 21)) * 0xFF;
+}
+
+/* arkfb_iplan_imageblit silently assumes that almost everything is 8-pixel aligned */
+static void arkfb_iplan_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+        u32 fg = expand_color(image->fg_color);
+        u32 bg = expand_color(image->bg_color);
+        const u8 *src1, *src;
+        u8 __iomem *dst1;
+        u32 __iomem *dst;
+        u32 val;
+        int x, y;
+
+        src1 = image->data;
+        dst1 = info->screen_base + (image->dy * info->fix.line_length)
+                 + ((image->dx / 8) * 4);
+
+        for (y = 0; y < image->height; y++) {
+                src = src1;
+                dst = (u32 __iomem *) dst1;
+                for (x = 0; x < image->width; x += 8) {
+                        val = *(src++) * 0x01010101;
+                        val = (val & fg) | (~val & bg);
+                        fb_writel(val, dst++);
+                }
+                src1 += image->width / 8;
+                dst1 += info->fix.line_length;
+        }
+
+}
+
+/* arkfb_iplan_fillrect silently assumes that almost everything is 8-pixel aligned */
+static void arkfb_iplan_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+        u32 fg = expand_color(rect->color);
+        u8 __iomem *dst1;
+        u32 __iomem *dst;
+        int x, y;
+
+        dst1 = info->screen_base + (rect->dy * info->fix.line_length)
+                 + ((rect->dx / 8) * 4);
+
+        for (y = 0; y < rect->height; y++) {
+                dst = (u32 __iomem *) dst1;
+                for (x = 0; x < rect->width; x += 8) {
+                        fb_writel(fg, dst++);
+                }
+                dst1 += info->fix.line_length;
+        }
+
+}
+
+
+/* image data is MSB-first, fb structure is high-nibble-in-low-byte-first */
+static inline u32 expand_pixel(u32 c)
+{
+        return (((c &  1) << 24) | ((c &  2) << 27) | ((c &  4) << 14) | ((c &   8) << 17) |
+                ((c & 16) <<  4) | ((c & 32) <<  7) | ((c & 64) >>  6) | ((c & 128) >>  3)) * 0xF;
+}
+
+/* arkfb_cfb4_imageblit silently assumes that almost everything is 8-pixel aligned */
+static void arkfb_cfb4_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+        u32 fg = image->fg_color * 0x11111111;
+        u32 bg = image->bg_color * 0x11111111;
+        const u8 *src1, *src;
+        u8 __iomem *dst1;
+        u32 __iomem *dst;
+        u32 val;
+        int x, y;
+
+        src1 = image->data;
+        dst1 = info->screen_base + (image->dy * info->fix.line_length)
+                 + ((image->dx / 8) * 4);
+
+        for (y = 0; y < image->height; y++) {
+                src = src1;
+                dst = (u32 __iomem *) dst1;
+                for (x = 0; x < image->width; x += 8) {
+                        val = expand_pixel(*(src++));
+                        val = (val & fg) | (~val & bg);
+                        fb_writel(val, dst++);
+                }
+                src1 += image->width / 8;
+                dst1 += info->fix.line_length;
+        }
+
+}
+
+static void arkfb_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+        if ((info->var.bits_per_pixel == 4) && (image->depth == 1)
+            && ((image->width % 8) == 0) && ((image->dx % 8) == 0)) {
+                if (info->fix.type == FB_TYPE_INTERLEAVED_PLANES)
+                        arkfb_iplan_imageblit(info, image);
+                else
+                        arkfb_cfb4_imageblit(info, image);
+        } else
+                cfb_imageblit(info, image);
+}
+
+static void arkfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+        if ((info->var.bits_per_pixel == 4)
+            && ((rect->width % 8) == 0) && ((rect->dx % 8) == 0)
+            && (info->fix.type == FB_TYPE_INTERLEAVED_PLANES))
+                arkfb_iplan_fillrect(info, rect);
+         else
+                cfb_fillrect(info, rect);
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+
+enum
+{
+        DAC_PSEUDO8_8,
+        DAC_RGB1555_8,
+        DAC_RGB0565_8,
+        DAC_RGB0888_8,
+        DAC_RGB8888_8,
+        DAC_PSEUDO8_16,
+        DAC_RGB1555_16,
+        DAC_RGB0565_16,
+        DAC_RGB0888_16,
+        DAC_RGB8888_16,
+        DAC_MAX
+};
+
+struct dac_ops {
+        int (*dac_get_mode)(struct dac_info *info);
+        int (*dac_set_mode)(struct dac_info *info, int mode);
+        int (*dac_get_freq)(struct dac_info *info, int channel);
+        int (*dac_set_freq)(struct dac_info *info, int channel, u32 freq);
+        void (*dac_release)(struct dac_info *info);
+};
+
+typedef void (*dac_read_regs_t)(void *data, u8 *code, int count);
+typedef void (*dac_write_regs_t)(void *data, u8 *code, int count);
+
+struct dac_info
+{
+        struct dac_ops *dacops;
+        dac_read_regs_t dac_read_regs;
+        dac_write_regs_t dac_write_regs;
+        void *data;
+};
+
+
+static inline u8 dac_read_reg(struct dac_info *info, u8 reg)
+{
+        u8 code[2] = {reg, 0};
+        info->dac_read_regs(info->data, code, 1);
+        return code[1];
+}
+
+static inline void dac_read_regs(struct dac_info *info, u8 *code, int count)
+{
+        info->dac_read_regs(info->data, code, count);
+}
+
+static inline void dac_write_reg(struct dac_info *info, u8 reg, u8 val)
+{
+        u8 code[2] = {reg, val};
+        info->dac_write_regs(info->data, code, 1);
+}
+
+static inline void dac_write_regs(struct dac_info *info, u8 *code, int count)
+{
+        info->dac_write_regs(info->data, code, count);
+}
+
+static inline int dac_set_mode(struct dac_info *info, int mode)
+{
+        return info->dacops->dac_set_mode(info, mode);
+}
+
+static inline int dac_set_freq(struct dac_info *info, int channel, u32 freq)
+{
+        return info->dacops->dac_set_freq(info, channel, freq);
+}
+
+static inline void dac_release(struct dac_info *info)
+{
+        info->dacops->dac_release(info);
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+
+/* ICS5342 DAC */
+
+struct ics5342_info
+{
+        struct dac_info dac;
+        u8 mode;
+};
+
+#define DAC_PAR(info) ((struct ics5342_info *) info)
+
+/* LSB is set to distinguish unused slots */
+static const u8 ics5342_mode_table[DAC_MAX] = {
+        [DAC_PSEUDO8_8]  = 0x01, [DAC_RGB1555_8]  = 0x21, [DAC_RGB0565_8]  = 0x61,
+        [DAC_RGB0888_8]  = 0x41, [DAC_PSEUDO8_16] = 0x11, [DAC_RGB1555_16] = 0x31,
+        [DAC_RGB0565_16] = 0x51, [DAC_RGB0888_16] = 0x91, [DAC_RGB8888_16] = 0x71
+};
+
+static int ics5342_set_mode(struct dac_info *info, int mode)
+{
+        u8 code;
+
+        if (mode >= DAC_MAX)
+                return -EINVAL;
+
+        code = ics5342_mode_table[mode];
+
+        if (! code)
+                return -EINVAL;
+
+        dac_write_reg(info, 6, code & 0xF0);
+        DAC_PAR(info)->mode = mode;
+
+        return 0;
+}
+
+static const struct svga_pll ics5342_pll = {3, 129, 3, 33, 0, 3,
+        60000, 250000, 14318};
+
+/* pd4 - allow only posdivider 4 (r=2) */
+static const struct svga_pll ics5342_pll_pd4 = {3, 129, 3, 33, 2, 2,
+        60000, 335000, 14318};
+
+/* 270 MHz should be upper bound for VCO clock according to specs,
+   but that is too restrictive in pd4 case */
+
+static int ics5342_set_freq(struct dac_info *info, int channel, u32 freq)
+{
+        u16 m, n, r;
+
+        /* only postdivider 4 (r=2) is valid in mode DAC_PSEUDO8_16 */
+        int rv = svga_compute_pll((DAC_PAR(info)->mode == DAC_PSEUDO8_16)
+                                  ? &ics5342_pll_pd4 : &ics5342_pll,
+                                  freq, &m, &n, &r, 0);
+
+        if (rv < 0) {
+                return -EINVAL;
+        } else {
+                u8 code[6] = {4, 3, 5, m-2, 5, (n-2) | (r << 5)};
+                dac_write_regs(info, code, 3);
+                return 0;
+        }
+}
+
+static void ics5342_release(struct dac_info *info)
+{
+        ics5342_set_mode(info, DAC_PSEUDO8_8);
+        kfree(info);
+}
+
+static struct dac_ops ics5342_ops = {
+        .dac_set_mode   = ics5342_set_mode,
+        .dac_set_freq   = ics5342_set_freq,
+        .dac_release    = ics5342_release
+};
+
+
+static struct dac_info * ics5342_init(dac_read_regs_t drr, dac_write_regs_t dwr, void *data)
+{
+        struct dac_info *info = kzalloc(sizeof(struct ics5342_info), GFP_KERNEL);
+
+        if (! info)
+                return NULL;
+
+        info->dacops = &ics5342_ops;
+        info->dac_read_regs = drr;
+        info->dac_write_regs = dwr;
+        info->data = data;
+        DAC_PAR(info)->mode = DAC_PSEUDO8_8; /* estimation */
+        return info;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+
+static unsigned short dac_regs[4] = {0x3c8, 0x3c9, 0x3c6, 0x3c7};
+
+static void ark_dac_read_regs(void *data, u8 *code, int count)
+{
+        u8 regval = vga_rseq(NULL, 0x1C);
+
+        while (count != 0)
+        {
+                vga_wseq(NULL, 0x1C, regval | (code[0] & 4) ? 0x80 : 0);
+                code[1] = vga_r(NULL, dac_regs[code[0] & 3]);
+                count--;
+                code += 2;
+        }
+
+        vga_wseq(NULL, 0x1C, regval);
+}
+
+static void ark_dac_write_regs(void *data, u8 *code, int count)
+{
+        u8 regval = vga_rseq(NULL, 0x1C);
+
+        while (count != 0)
+        {
+                vga_wseq(NULL, 0x1C, regval | (code[0] & 4) ? 0x80 : 0);
+                vga_w(NULL, dac_regs[code[0] & 3], code[1]);
+                count--;
+                code += 2;
+        }
+
+        vga_wseq(NULL, 0x1C, regval);
+}
+
+
+static void ark_set_pixclock(struct fb_info *info, u32 pixclock)
+{
+        struct arkfb_info *par = info->par;
+        u8 regval;
+
+        int rv = dac_set_freq(par->dac, 0, 1000000000 / pixclock);
+        if (rv < 0) {
+                printk(KERN_ERR "fb%d: cannot set requested pixclock, keeping old value\n", info->node);
+                return;
+        }
+
+        /* Set VGA misc register  */
+        regval = vga_r(NULL, VGA_MIS_R);
+        vga_w(NULL, VGA_MIS_W, regval | VGA_MIS_ENB_PLL_LOAD);
+}
+
+
+/* Open framebuffer */
+
+static int arkfb_open(struct fb_info *info, int user)
+{
+        struct arkfb_info *par = info->par;
+
+        mutex_lock(&(par->open_lock));
+        if (par->ref_count == 0) {
+                memset(&(par->state), 0, sizeof(struct vgastate));
+                par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS | VGA_SAVE_CMAP;
+                par->state.num_crtc = 0x60;
+                par->state.num_seq = 0x30;
+                save_vga(&(par->state));
+        }
+
+        par->ref_count++;
+        mutex_unlock(&(par->open_lock));
+
+        return 0;
+}
+
+/* Close framebuffer */
+
+static int arkfb_release(struct fb_info *info, int user)
+{
+        struct arkfb_info *par = info->par;
+
+        mutex_lock(&(par->open_lock));
+        if (par->ref_count == 0) {
+                mutex_unlock(&(par->open_lock));
+                return -EINVAL;
+        }
+
+        if (par->ref_count == 1) {
+                restore_vga(&(par->state));
+                dac_set_mode(par->dac, DAC_PSEUDO8_8);
+        }
+
+        par->ref_count--;
+        mutex_unlock(&(par->open_lock));
+
+        return 0;
+}
+
+/* Validate passed in var */
+
+static int arkfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+        int rv, mem, step;
+
+        /* Find appropriate format */
+        rv = svga_match_format (arkfb_formats, var, NULL);
+        if (rv < 0)
+        {
+                printk(KERN_ERR "fb%d: unsupported mode requested\n", info->node);
+                return rv;
+        }
+
+        /* Do not allow to have real resoulution larger than virtual */
+        if (var->xres > var->xres_virtual)
+                var->xres_virtual = var->xres;
+
+        if (var->yres > var->yres_virtual)
+                var->yres_virtual = var->yres;
+
+        /* Round up xres_virtual to have proper alignment of lines */
+        step = arkfb_formats[rv].xresstep - 1;
+        var->xres_virtual = (var->xres_virtual+step) & ~step;
+
+
+        /* Check whether have enough memory */
+        mem = ((var->bits_per_pixel * var->xres_virtual) >> 3) * var->yres_virtual;
+        if (mem > info->screen_size)
+        {
+                printk(KERN_ERR "fb%d: not enough framebuffer memory (%d kB requested , %d kB available)\n", info->node, mem >> 10, (unsigned int) (info->screen_size >> 10));
+                return -EINVAL;
+        }
+
+        rv = svga_check_timings (&ark_timing_regs, var, info->node);
+        if (rv < 0)
+        {
+                printk(KERN_ERR "fb%d: invalid timings requested\n", info->node);
+                return rv;
+        }
+
+        /* Interlaced mode is broken */
+        if (var->vmode & FB_VMODE_INTERLACED)
+                return -EINVAL;
+
+        return 0;
+}
+
+/* Set video mode from par */
+
+static int arkfb_set_par(struct fb_info *info)
+{
+        struct arkfb_info *par = info->par;
+        u32 value, mode, hmul, hdiv, offset_value, screen_size;
+        u32 bpp = info->var.bits_per_pixel;
+        u8 regval;
+
+        if (bpp != 0) {
+                info->fix.ypanstep = 1;
+                info->fix.line_length = (info->var.xres_virtual * bpp) / 8;
+
+                info->flags &= ~FBINFO_MISC_TILEBLITTING;
+                info->tileops = NULL;
+
+                /* in 4bpp supports 8p wide tiles only, any tiles otherwise */
+                info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
+                info->pixmap.blit_y = ~(u32)0;
+
+                offset_value = (info->var.xres_virtual * bpp) / 64;
+                screen_size = info->var.yres_virtual * info->fix.line_length;
+        } else {
+                info->fix.ypanstep = 16;
+                info->fix.line_length = 0;
+
+                info->flags |= FBINFO_MISC_TILEBLITTING;
+                info->tileops = &arkfb_tile_ops;
+
+                /* supports 8x16 tiles only */
+                info->pixmap.blit_x = 1 << (8 - 1);
+                info->pixmap.blit_y = 1 << (16 - 1);
+
+                offset_value = info->var.xres_virtual / 16;
+                screen_size = (info->var.xres_virtual * info->var.yres_virtual) / 64;
+        }
+
+        info->var.xoffset = 0;
+        info->var.yoffset = 0;
+        info->var.activate = FB_ACTIVATE_NOW;
+
+        /* Unlock registers */
+        svga_wcrt_mask(0x11, 0x00, 0x80);
+
+        /* Blank screen and turn off sync */
+        svga_wseq_mask(0x01, 0x20, 0x20);
+        svga_wcrt_mask(0x17, 0x00, 0x80);
+
+        /* Set default values */
+        svga_set_default_gfx_regs();
+        svga_set_default_atc_regs();
+        svga_set_default_seq_regs();
+        svga_set_default_crt_regs();
+        svga_wcrt_multi(ark_line_compare_regs, 0xFFFFFFFF);
+        svga_wcrt_multi(ark_start_address_regs, 0);
+
+        /* ARK specific initialization */
+        svga_wseq_mask(0x10, 0x1F, 0x1F); /* enable linear framebuffer and full memory access */
+        svga_wseq_mask(0x12, 0x03, 0x03); /* 4 MB linear framebuffer size */
+
+        vga_wseq(NULL, 0x13, info->fix.smem_start >> 16);
+        vga_wseq(NULL, 0x14, info->fix.smem_start >> 24);
+        vga_wseq(NULL, 0x15, 0);
+        vga_wseq(NULL, 0x16, 0);
+
+        /* Set the FIFO threshold register */
+        /* It is fascinating way to store 5-bit value in 8-bit register */
+        regval = 0x10 | ((threshold & 0x0E) >> 1) | (threshold & 0x01) << 7 | (threshold & 0x10) << 1;
+        vga_wseq(NULL, 0x18, regval);
+
+        /* Set the offset register */
+        pr_debug("fb%d: offset register       : %d\n", info->node, offset_value);
+        svga_wcrt_multi(ark_offset_regs, offset_value);
+
+        /* fix for hi-res textmode */
+        svga_wcrt_mask(0x40, 0x08, 0x08);
+
+        if (info->var.vmode & FB_VMODE_DOUBLE)
+                svga_wcrt_mask(0x09, 0x80, 0x80);
+        else
+                svga_wcrt_mask(0x09, 0x00, 0x80);
+
+        if (info->var.vmode & FB_VMODE_INTERLACED)
+                svga_wcrt_mask(0x44, 0x04, 0x04);
+        else
+                svga_wcrt_mask(0x44, 0x00, 0x04);
+
+        hmul = 1;
+        hdiv = 1;
+        mode = svga_match_format(arkfb_formats, &(info->var), &(info->fix));
+
+        /* Set mode-specific register values */
+        switch (mode) {
+        case 0:
+                pr_debug("fb%d: text mode\n", info->node);
+                svga_set_textmode_vga_regs();
+
+                vga_wseq(NULL, 0x11, 0x10); /* basic VGA mode */
+                svga_wcrt_mask(0x46, 0x00, 0x04); /* 8bit pixel path */
+                dac_set_mode(par->dac, DAC_PSEUDO8_8);
+
+                break;
+        case 1:
+                pr_debug("fb%d: 4 bit pseudocolor\n", info->node);
+                vga_wgfx(NULL, VGA_GFX_MODE, 0x40);
+
+                vga_wseq(NULL, 0x11, 0x10); /* basic VGA mode */
+                svga_wcrt_mask(0x46, 0x00, 0x04); /* 8bit pixel path */
+                dac_set_mode(par->dac, DAC_PSEUDO8_8);
+                break;
+        case 2:
+                pr_debug("fb%d: 4 bit pseudocolor, planar\n", info->node);
+
+                vga_wseq(NULL, 0x11, 0x10); /* basic VGA mode */
+                svga_wcrt_mask(0x46, 0x00, 0x04); /* 8bit pixel path */
+                dac_set_mode(par->dac, DAC_PSEUDO8_8);
+                break;
+        case 3:
+                pr_debug("fb%d: 8 bit pseudocolor\n", info->node);
+
+                vga_wseq(NULL, 0x11, 0x16); /* 8bpp accel mode */
+
+                if (info->var.pixclock > 20000) {
+                        pr_debug("fb%d: not using multiplex\n", info->node);
+                        svga_wcrt_mask(0x46, 0x00, 0x04); /* 8bit pixel path */
+                        dac_set_mode(par->dac, DAC_PSEUDO8_8);
+                } else {
+                        pr_debug("fb%d: using multiplex\n", info->node);
+                        svga_wcrt_mask(0x46, 0x04, 0x04); /* 16bit pixel path */
+                        dac_set_mode(par->dac, DAC_PSEUDO8_16);
+                        hdiv = 2;
+                }
+                break;
+        case 4:
+                pr_debug("fb%d: 5/5/5 truecolor\n", info->node);
+
+                vga_wseq(NULL, 0x11, 0x1A); /* 16bpp accel mode */
+                svga_wcrt_mask(0x46, 0x04, 0x04); /* 16bit pixel path */
+                dac_set_mode(par->dac, DAC_RGB1555_16);
+                break;
+        case 5:
+                pr_debug("fb%d: 5/6/5 truecolor\n", info->node);
+
+                vga_wseq(NULL, 0x11, 0x1A); /* 16bpp accel mode */
+                svga_wcrt_mask(0x46, 0x04, 0x04); /* 16bit pixel path */
+                dac_set_mode(par->dac, DAC_RGB0565_16);
+                break;
+        case 6:
+                pr_debug("fb%d: 8/8/8 truecolor\n", info->node);
+
+                vga_wseq(NULL, 0x11, 0x16); /* 8bpp accel mode ??? */
+                svga_wcrt_mask(0x46, 0x04, 0x04); /* 16bit pixel path */
+                dac_set_mode(par->dac, DAC_RGB0888_16);
+                hmul = 3;
+                hdiv = 2;
+                break;
+        case 7:
+                pr_debug("fb%d: 8/8/8/8 truecolor\n", info->node);
+
+                vga_wseq(NULL, 0x11, 0x1E); /* 32bpp accel mode */
+                svga_wcrt_mask(0x46, 0x04, 0x04); /* 16bit pixel path */
+                dac_set_mode(par->dac, DAC_RGB8888_16);
+                hmul = 2;
+                break;
+        default:
+                printk(KERN_ERR "fb%d: unsupported mode - bug\n", info->node);
+                return -EINVAL;
+        }
+
+        ark_set_pixclock(info, (hdiv * info->var.pixclock) / hmul);
+        svga_set_timings(&ark_timing_regs, &(info->var), hmul, hdiv,
+                         (info->var.vmode & FB_VMODE_DOUBLE)     ? 2 : 1,
+                         (info->var.vmode & FB_VMODE_INTERLACED) ? 2 : 1,
+                          hmul, info->node);
+
+        /* Set interlaced mode start/end register */
+        value = info->var.xres + info->var.left_margin + info->var.right_margin + info->var.hsync_len;
+        value = ((value * hmul / hdiv) / 8) - 5;
+        vga_wcrt(NULL, 0x42, (value + 1) / 2);
+
+        memset_io(info->screen_base, 0x00, screen_size);
+        /* Device and screen back on */
+        svga_wcrt_mask(0x17, 0x80, 0x80);
+        svga_wseq_mask(0x01, 0x00, 0x20);
+
+        return 0;
+}
+
+/* Set a colour register */
+
+static int arkfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+                                u_int transp, struct fb_info *fb)
+{
+        switch (fb->var.bits_per_pixel) {
+        case 0:
+        case 4:
+                if (regno >= 16)
+                        return -EINVAL;
+
+                if ((fb->var.bits_per_pixel == 4) &&
+                    (fb->var.nonstd == 0)) {
+                        outb(0xF0, VGA_PEL_MSK);
+                        outb(regno*16, VGA_PEL_IW);
+                } else {
+                        outb(0x0F, VGA_PEL_MSK);
+                        outb(regno, VGA_PEL_IW);
+                }
+                outb(red >> 10, VGA_PEL_D);
+                outb(green >> 10, VGA_PEL_D);
+                outb(blue >> 10, VGA_PEL_D);
+                break;
+        case 8:
+                if (regno >= 256)
+                        return -EINVAL;
+
+                outb(0xFF, VGA_PEL_MSK);
+                outb(regno, VGA_PEL_IW);
+                outb(red >> 10, VGA_PEL_D);
+                outb(green >> 10, VGA_PEL_D);
+                outb(blue >> 10, VGA_PEL_D);
+                break;
+        case 16:
+                if (regno >= 16)
+                        return 0;
+
+                if (fb->var.green.length == 5)
+                        ((u32*)fb->pseudo_palette)[regno] = ((red & 0xF800) >> 1) |
+                                ((green & 0xF800) >> 6) | ((blue & 0xF800) >> 11);
+                else if (fb->var.green.length == 6)
+                        ((u32*)fb->pseudo_palette)[regno] = (red & 0xF800) |
+                                ((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11);
+                else
+                        return -EINVAL;
+                break;
+        case 24:
+        case 32:
+                if (regno >= 16)
+                        return 0;
+
+                ((u32*)fb->pseudo_palette)[regno] = ((red & 0xFF00) << 8) |
+                        (green & 0xFF00) | ((blue & 0xFF00) >> 8);
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+/* Set the display blanking state */
+
+static int arkfb_blank(int blank_mode, struct fb_info *info)
+{
+        switch (blank_mode) {
+        case FB_BLANK_UNBLANK:
+                pr_debug("fb%d: unblank\n", info->node);
+                svga_wseq_mask(0x01, 0x00, 0x20);
+                svga_wcrt_mask(0x17, 0x80, 0x80);
+                break;
+        case FB_BLANK_NORMAL:
+                pr_debug("fb%d: blank\n", info->node);
+                svga_wseq_mask(0x01, 0x20, 0x20);
+                svga_wcrt_mask(0x17, 0x80, 0x80);
+                break;
+        case FB_BLANK_POWERDOWN:
+        case FB_BLANK_HSYNC_SUSPEND:
+        case FB_BLANK_VSYNC_SUSPEND:
+                pr_debug("fb%d: sync down\n", info->node);
+                svga_wseq_mask(0x01, 0x20, 0x20);
+                svga_wcrt_mask(0x17, 0x00, 0x80);
+                break;
+        }
+        return 0;
+}
+
+
+/* Pan the display */
+
+static int arkfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+        unsigned int offset;
+
+        /* Calculate the offset */
+        if (var->bits_per_pixel == 0) {
+                offset = (var->yoffset / 16) * (var->xres_virtual / 2) + (var->xoffset / 2);
+                offset = offset >> 2;
+        } else {
+                offset = (var->yoffset * info->fix.line_length) +
+                         (var->xoffset * var->bits_per_pixel / 8);
+                offset = offset >> ((var->bits_per_pixel == 4) ? 2 : 3);
+        }
+
+        /* Set the offset */
+        svga_wcrt_multi(ark_start_address_regs, offset);
+
+        return 0;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+
+/* Frame buffer operations */
+
+static struct fb_ops arkfb_ops = {
+        .owner          = THIS_MODULE,
+        .fb_open        = arkfb_open,
+        .fb_release     = arkfb_release,
+        .fb_check_var   = arkfb_check_var,
+        .fb_set_par     = arkfb_set_par,
+        .fb_setcolreg   = arkfb_setcolreg,
+        .fb_blank       = arkfb_blank,
+        .fb_pan_display = arkfb_pan_display,
+        .fb_fillrect    = arkfb_fillrect,
+        .fb_copyarea    = cfb_copyarea,
+        .fb_imageblit   = arkfb_imageblit,
+        .fb_get_caps    = svga_get_caps,
+};
+
+
+/* ------------------------------------------------------------------------- */
+
+
+/* PCI probe */
+static int __devinit ark_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+        struct fb_info *info;
+        struct arkfb_info *par;
+        int rc;
+        u8 regval;
+
+        /* Ignore secondary VGA device because there is no VGA arbitration */
+        if (! svga_primary_device(dev)) {
+                dev_info(&(dev->dev), "ignoring secondary device\n");
+                return -ENODEV;
+        }
+
+        /* Allocate and fill driver data structure */
+        info = framebuffer_alloc(sizeof(struct arkfb_info), NULL);
+        if (! info) {
+                dev_err(&(dev->dev), "cannot allocate memory\n");
+                return -ENOMEM;
+        }
+
+        par = info->par;
+        mutex_init(&par->open_lock);
+
+        info->flags = FBINFO_PARTIAL_PAN_OK | FBINFO_HWACCEL_YPAN;
+        info->fbops = &arkfb_ops;
+
+        /* Prepare PCI device */
+        rc = pci_enable_device(dev);
+        if (rc < 0) {
+                dev_err(&(dev->dev), "cannot enable PCI device\n");
+                goto err_enable_device;
+        }
+
+        rc = pci_request_regions(dev, "arkfb");
+        if (rc < 0) {
+                dev_err(&(dev->dev), "cannot reserve framebuffer region\n");
+                goto err_request_regions;
+        }
+
+        par->dac = ics5342_init(ark_dac_read_regs, ark_dac_write_regs, info);
+        if (! par->dac) {
+                rc = -ENOMEM;
+                dev_err(&(dev->dev), "RAMDAC initialization failed\n");
+                goto err_dac;
+        }
+
+        info->fix.smem_start = pci_resource_start(dev, 0);
+        info->fix.smem_len = pci_resource_len(dev, 0);
+
+        /* Map physical IO memory address into kernel space */
+        info->screen_base = pci_iomap(dev, 0, 0);
+        if (! info->screen_base) {
+                rc = -ENOMEM;
+                dev_err(&(dev->dev), "iomap for framebuffer failed\n");
+                goto err_iomap;
+        }
+
+        /* FIXME get memsize */
+        regval = vga_rseq(NULL, 0x10);
+        info->screen_size = (1 << (regval >> 6)) << 20;
+        info->fix.smem_len = info->screen_size;
+
+        strcpy(info->fix.id, "ARK 2000PV");
+        info->fix.mmio_start = 0;
+        info->fix.mmio_len = 0;
+        info->fix.type = FB_TYPE_PACKED_PIXELS;
+        info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+        info->fix.ypanstep = 0;
+        info->fix.accel = FB_ACCEL_NONE;
+        info->pseudo_palette = (void*) (par->pseudo_palette);
+
+        /* Prepare startup mode */
+        rc = fb_find_mode(&(info->var), info, mode, NULL, 0, NULL, 8);
+        if (! ((rc == 1) || (rc == 2))) {
+                rc = -EINVAL;
+                dev_err(&(dev->dev), "mode %s not found\n", mode);
+                goto err_find_mode;
+        }
+
+        rc = fb_alloc_cmap(&info->cmap, 256, 0);
+        if (rc < 0) {
+                dev_err(&(dev->dev), "cannot allocate colormap\n");
+                goto err_alloc_cmap;
+        }
+
+        rc = register_framebuffer(info);
+        if (rc < 0) {
+                dev_err(&(dev->dev), "cannot register framebugger\n");
+                goto err_reg_fb;
+        }
+
+        printk(KERN_INFO "fb%d: %s on %s, %d MB RAM\n", info->node, info->fix.id,
+                 pci_name(dev), info->fix.smem_len >> 20);
+
+        /* Record a reference to the driver data */
+        pci_set_drvdata(dev, info);
+
+#ifdef CONFIG_MTRR
+        if (mtrr) {
+                par->mtrr_reg = -1;
+                par->mtrr_reg = mtrr_add(info->fix.smem_start, info->fix.smem_len, MTRR_TYPE_WRCOMB, 1);
+        }
+#endif
+
+        return 0;
+
+        /* Error handling */
+err_reg_fb:
+        fb_dealloc_cmap(&info->cmap);
+err_alloc_cmap:
+err_find_mode:
+        pci_iounmap(dev, info->screen_base);
+err_iomap:
+        dac_release(par->dac);
+err_dac:
+        pci_release_regions(dev);
+err_request_regions:
+/*      pci_disable_device(dev); */
+err_enable_device:
+        framebuffer_release(info);
+        return rc;
+}
+
+/* PCI remove */
+
+static void __devexit ark_pci_remove(struct pci_dev *dev)
+{
+        struct fb_info *info = pci_get_drvdata(dev);
+        struct arkfb_info *par = info->par;
+
+        if (info) {
+#ifdef CONFIG_MTRR
+                if (par->mtrr_reg >= 0) {
+                        mtrr_del(par->mtrr_reg, 0, 0);
+                        par->mtrr_reg = -1;
+                }
+#endif
+
+                dac_release(par->dac);
+                unregister_framebuffer(info);
+                fb_dealloc_cmap(&info->cmap);
+
+                pci_iounmap(dev, info->screen_base);
+                pci_release_regions(dev);
+/*              pci_disable_device(dev); */
+
+                pci_set_drvdata(dev, NULL);
+                framebuffer_release(info);
+        }
+}
+
+
+#ifdef CONFIG_PM
+/* PCI suspend */
+
+static int ark_pci_suspend (struct pci_dev* dev, pm_message_t state)
+{
+        struct fb_info *info = pci_get_drvdata(dev);
+        struct arkfb_info *par = info->par;
+
+        dev_info(&(dev->dev), "suspend\n");
+
+        acquire_console_sem();
+        mutex_lock(&(par->open_lock));
+
+        if ((state.event == PM_EVENT_FREEZE) || (par->ref_count == 0)) {
+                mutex_unlock(&(par->open_lock));
+                release_console_sem();
+                return 0;
+        }
+
+        fb_set_suspend(info, 1);
+
+        pci_save_state(dev);
+        pci_disable_device(dev);
+        pci_set_power_state(dev, pci_choose_state(dev, state));
+
+        mutex_unlock(&(par->open_lock));
+        release_console_sem();
+
+        return 0;
+}
+
+
+/* PCI resume */
+
+static int ark_pci_resume (struct pci_dev* dev)
+{
+        struct fb_info *info = pci_get_drvdata(dev);
+        struct arkfb_info *par = info->par;
+
+        dev_info(&(dev->dev), "resume\n");
+
+        acquire_console_sem();
+        mutex_lock(&(par->open_lock));
+
+        if (par->ref_count == 0) {
+                mutex_unlock(&(par->open_lock));
+                release_console_sem();
+                return 0;
+        }
+
+        pci_set_power_state(dev, PCI_D0);
+        pci_restore_state(dev);
+
+        if (pci_enable_device(dev))
+                goto fail;
+
+        pci_set_master(dev);
+
+        arkfb_set_par(info);
+        fb_set_suspend(info, 0);
+
+        mutex_unlock(&(par->open_lock));
+fail:
+        release_console_sem();
+        return 0;
+}
+#else
+#define ark_pci_suspend NULL
+#define ark_pci_resume NULL
+#endif /* CONFIG_PM */
+
+/* List of boards that we are trying to support */
+
+static struct pci_device_id ark_devices[] __devinitdata = {
+        {PCI_DEVICE(0xEDD8, 0xA099)},
+        {0, 0, 0, 0, 0, 0, 0}
+};
+
+
+MODULE_DEVICE_TABLE(pci, ark_devices);
+
+static struct pci_driver arkfb_pci_driver = {
+        .name           = "arkfb",
+        .id_table       = ark_devices,
+        .probe          = ark_pci_probe,
+        .remove         = __devexit_p(ark_pci_remove),
+        .suspend        = ark_pci_suspend,
+        .resume         = ark_pci_resume,
+};
+
+/* Cleanup */
+
+static void __exit arkfb_cleanup(void)
+{
+        pr_debug("arkfb: cleaning up\n");
+        pci_unregister_driver(&arkfb_pci_driver);
+}
+
+/* Driver Initialisation */
+
+static int __init arkfb_init(void)
+{
+
+#ifndef MODULE
+        char *option = NULL;
+
+        if (fb_get_options("arkfb", &option))
+                return -ENODEV;
+
+        if (option && *option)
+                mode = option;
+#endif
+
+        pr_debug("arkfb: initializing\n");
+        return pci_register_driver(&arkfb_pci_driver);
+}
+
+module_init(arkfb_init);
+module_exit(arkfb_cleanup);
diff --git a/drivers/video/console/softcursor.c b/drivers/video/console/softcursor.c
index f577bd80e020..03cfb7ac5733 100644
--- a/drivers/video/console/softcursor.c
+++ b/drivers/video/console/softcursor.c
@@ -1,5 +1,5 @@
 /*
- * linux/drivers/video/softcursor.c
+ * linux/drivers/video/console/softcursor.c
  *
  * Generic software cursor for frame buffer devices
  *
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 08d4e11d9121..38c2e2558f5e 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1236,6 +1236,10 @@ fb_mmap(struct file *file, struct vm_area_struct * vma)
         pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE;
 #elif defined(__arm__) || defined(__sh__) || defined(__m32r__)
         vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
+#elif defined(__avr32__)
+        vma->vm_page_prot = __pgprot((pgprot_val(vma->vm_page_prot)
+                                      & ~_PAGE_CACHABLE)
+                                     | (_PAGE_BUFFER | _PAGE_DIRTY));
 #elif defined(__ia64__)
         if (efi_range_is_wc(vma->vm_start, vma->vm_end - vma->vm_start))
                 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
index 7e760197cf29..1a7d7789d877 100644
--- a/drivers/video/i810/i810_main.c
+++ b/drivers/video/i810/i810_main.c
@@ -1717,7 +1717,7 @@ static int __devinit i810_alloc_agp_mem(struct fb_info *info)
  * @info: pointer to device specific info structure
  *
  * DESCRIPTION:
- * Sets the the user monitor's horizontal and vertical
+ * Sets the user monitor's horizontal and vertical
  * frequency limits
  */
 static void __devinit i810_init_monspecs(struct fb_info *info)
diff --git a/drivers/video/matrox/matroxfb_Ti3026.c b/drivers/video/matrox/matroxfb_Ti3026.c
index a5690a5f29d5..9445cdb759b1 100644
--- a/drivers/video/matrox/matroxfb_Ti3026.c
+++ b/drivers/video/matrox/matroxfb_Ti3026.c
@@ -72,7 +72,7 @@
  *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
  *
  * (following author is not in any relation with this code, but his ideas
- *  were used when writting this driver)
+ *  were used when writing this driver)
  *
  *               FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
  *
diff --git a/drivers/video/matrox/matroxfb_accel.c b/drivers/video/matrox/matroxfb_accel.c
index a5c825d99466..c57aaadf410c 100644
--- a/drivers/video/matrox/matroxfb_accel.c
+++ b/drivers/video/matrox/matroxfb_accel.c
@@ -70,7 +70,7 @@
  *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
  *
  * (following author is not in any relation with this code, but his ideas
- *  were used when writting this driver)
+ *  were used when writing this driver)
  *
  *               FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
  *
diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c
index cb2aa402ddfd..c8559a756b75 100644
--- a/drivers/video/matrox/matroxfb_base.c
+++ b/drivers/video/matrox/matroxfb_base.c
@@ -93,7 +93,7 @@
  *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
  *
  * (following author is not in any relation with this code, but his ideas
- *  were used when writting this driver)
+ *  were used when writing this driver)
  *
  *               FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
  *
diff --git a/drivers/video/matrox/matroxfb_misc.c b/drivers/video/matrox/matroxfb_misc.c
index 18886b629cb1..5948e54b9ef9 100644
--- a/drivers/video/matrox/matroxfb_misc.c
+++ b/drivers/video/matrox/matroxfb_misc.c
@@ -78,7 +78,7 @@
  *     (c) 1998 Gerd Knorr <kraxel@cs.tu-berlin.de>
  *
  * (following author is not in any relation with this code, but his ideas
- *  were used when writting this driver)
+ *  were used when writing this driver)
  *
  *               FreeVBE/AF (Matrox), "Shawn Hargreaves" <shawn@talula.demon.co.uk>
  *
diff --git a/drivers/video/nvidia/nv_hw.c b/drivers/video/nvidia/nv_hw.c
index f297c7b14a41..c627955aa124 100644
--- a/drivers/video/nvidia/nv_hw.c
+++ b/drivers/video/nvidia/nv_hw.c
@@ -149,8 +149,7 @@ static void nvGetClocks(struct nvidia_par *par, unsigned int *MClk,
                 pll = NV_RD32(par->PMC, 0x4024);
                 M = pll & 0xFF;
                 N = (pll >> 8) & 0xFF;
-                if (((par->Chipset & 0xfff0) == 0x0290) ||
-                                ((par->Chipset & 0xfff0) == 0x0390)) {
+                if (((par->Chipset & 0xfff0) == 0x0290) || ((par->Chipset & 0xfff0) == 0x0390) || ((par->Chipset & 0xfff0) == 0x02E0)) {
                         MB = 1;
                         NB = 1;
                 } else {
@@ -963,6 +962,7 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state)
 
                 if (((par->Chipset & 0xfff0) == 0x0090) ||
                     ((par->Chipset & 0xfff0) == 0x01D0) ||
+                    ((par->Chipset & 0xfff0) == 0x02E0) ||
                     ((par->Chipset & 0xfff0) == 0x0290))
                         regions = 15;
                 for(i = 0; i < regions; i++) {
@@ -1275,6 +1275,7 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state)
                                                 0x00100000);
                                         break;
                                 case 0x0090:
+                                case 0x02E0:
                                 case 0x0290:
                                         NV_WR32(par->PRAMDAC, 0x0608,
                                                 NV_RD32(par->PRAMDAC, 0x0608) |
@@ -1352,6 +1353,7 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state)
                         } else {
                                 if (((par->Chipset & 0xfff0) == 0x0090) ||
                                     ((par->Chipset & 0xfff0) == 0x01D0) ||
+                                    ((par->Chipset & 0xfff0) == 0x02E0) ||
                                     ((par->Chipset & 0xfff0) == 0x0290)) {
                                         for (i = 0; i < 60; i++) {
                                                 NV_WR32(par->PGRAPH,
@@ -1403,6 +1405,7 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state)
                                 } else {
                                         if ((par->Chipset & 0xfff0) == 0x0090 ||
                                             (par->Chipset & 0xfff0) == 0x01D0 ||
+                                            (par->Chipset & 0xfff0) == 0x02E0 ||
                                             (par->Chipset & 0xfff0) == 0x0290) {
                                                 NV_WR32(par->PGRAPH, 0x0DF0,
                                                         NV_RD32(par->PFB, 0x0200));
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index 7c36b5fe582e..f85edf084da3 100644
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -1243,6 +1243,7 @@ static u32 __devinit nvidia_get_arch(struct fb_info *info)
         case 0x0140:            /* GeForce 6600 */
         case 0x0160:            /* GeForce 6200 */
         case 0x01D0:            /* GeForce 7200, 7300, 7400 */
+        case 0x02E0:            /* GeForce 7300 GT */
         case 0x0090:            /* GeForce 7800 */
         case 0x0210:            /* GeForce 6800 */
         case 0x0220:            /* GeForce 6200 */
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index 756fafb41d78..d11735895a01 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c
@@ -796,23 +796,6 @@ static int s3fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
         return 0;
 }
 
-/* Get capabilities of accelerator based on the mode */
-
-static void s3fb_get_caps(struct fb_info *info, struct fb_blit_caps *caps,
-                          struct fb_var_screeninfo *var)
-{
-        if (var->bits_per_pixel == 0) {
-                /* can only support 256 8x16 bitmap */
-                caps->x = 1 << (8 - 1);
-                caps->y = 1 << (16 - 1);
-                caps->len = 256;
-        } else {
-                caps->x = ~(u32)0;
-                caps->y = ~(u32)0;
-                caps->len = ~(u32)0;
-        }
-}
-
 /* ------------------------------------------------------------------------- */
 
 /* Frame buffer operations */
@@ -829,7 +812,7 @@ static struct fb_ops s3fb_ops = {
         .fb_fillrect    = s3fb_fillrect,
         .fb_copyarea    = cfb_copyarea,
         .fb_imageblit   = s3fb_imageblit,
-        .fb_get_caps    = s3fb_get_caps,
+        .fb_get_caps    = svga_get_caps,
 };
 
 /* ------------------------------------------------------------------------- */
diff --git a/drivers/video/skeletonfb.c b/drivers/video/skeletonfb.c
index 842b5cd054c6..836a612af977 100644
--- a/drivers/video/skeletonfb.c
+++ b/drivers/video/skeletonfb.c
@@ -14,7 +14,7 @@
  *  of it. 
  *
  *  First the roles of struct fb_info and struct display have changed. Struct
- *  display will go away. The way the the new framebuffer console code will
+ *  display will go away. The way the new framebuffer console code will
  *  work is that it will act to translate data about the tty/console in 
  *  struct vc_data to data in a device independent way in struct fb_info. Then
  *  various functions in struct fb_ops will be called to store the device 
diff --git a/drivers/video/svgalib.c b/drivers/video/svgalib.c
index 079cdc911e48..25df928d37d8 100644
--- a/drivers/video/svgalib.c
+++ b/drivers/video/svgalib.c
@@ -347,6 +347,23 @@ int svga_get_tilemax(struct fb_info *info)
         return 256;
 }
 
+/* Get capabilities of accelerator based on the mode */
+
+void svga_get_caps(struct fb_info *info, struct fb_blit_caps *caps,
+                   struct fb_var_screeninfo *var)
+{
+        if (var->bits_per_pixel == 0) {
+                /* can only support 256 8x16 bitmap */
+                caps->x = 1 << (8 - 1);
+                caps->y = 1 << (16 - 1);
+                caps->len = 256;
+        } else {
+                caps->x = (var->bits_per_pixel == 4) ? 1 << (8 - 1) : ~(u32)0;
+                caps->y = ~(u32)0;
+                caps->len = ~(u32)0;
+        }
+}
+EXPORT_SYMBOL(svga_get_caps);
 
 /* ------------------------------------------------------------------------- */
 
diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c
new file mode 100644
index 000000000000..5e9755e464a1
--- /dev/null
+++ b/drivers/video/vt8623fb.c
@@ -0,0 +1,927 @@
+/*
+ * linux/drivers/video/vt8623fb.c - fbdev driver for
+ * integrated graphic core in VIA VT8623 [CLE266] chipset
+ *
+ * Copyright (c) 2006-2007 Ondrej Zajicek <santiago@crfreenet.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ * Code is based on s3fb, some parts are from David Boucher's viafb
+ * (http://davesdomain.org.uk/viafb/)
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/svga.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/console.h> /* Why should fb driver call console functions? because acquire_console_sem() */
+#include <video/vga.h>
+
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+
+struct vt8623fb_info {
+        char __iomem *mmio_base;
+        int mtrr_reg;
+        struct vgastate state;
+        struct mutex open_lock;
+        unsigned int ref_count;
+        u32 pseudo_palette[16];
+};
+
+
+
+/* ------------------------------------------------------------------------- */
+
+static const struct svga_fb_format vt8623fb_formats[] = {
+        { 0,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 0,
+                FB_TYPE_TEXT, FB_AUX_TEXT_SVGA_STEP8,   FB_VISUAL_PSEUDOCOLOR, 16, 16},
+        { 4,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_PSEUDOCOLOR, 16, 16},
+        { 4,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 1,
+                FB_TYPE_INTERLEAVED_PLANES, 1,          FB_VISUAL_PSEUDOCOLOR, 16, 16},
+        { 8,  {0, 6, 0},  {0, 6, 0},  {0, 6, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_PSEUDOCOLOR, 8, 8},
+/*      {16,  {10, 5, 0}, {5, 5, 0},  {0, 5, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_TRUECOLOR, 4, 4},     */
+        {16,  {11, 5, 0}, {5, 6, 0},  {0, 5, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_TRUECOLOR, 4, 4},
+        {32,  {16, 8, 0}, {8, 8, 0},  {0, 8, 0}, {0, 0, 0}, 0,
+                FB_TYPE_PACKED_PIXELS, 0,               FB_VISUAL_TRUECOLOR, 2, 2},
+        SVGA_FORMAT_END
+};
+
+static const struct svga_pll vt8623_pll = {2, 127, 2, 7, 0, 3,
+        60000, 300000, 14318};
+
+/* CRT timing register sets */
+
+struct vga_regset vt8623_h_total_regs[]       = {{0x00, 0, 7}, {0x36, 3, 3}, VGA_REGSET_END};
+struct vga_regset vt8623_h_display_regs[]     = {{0x01, 0, 7}, VGA_REGSET_END};
+struct vga_regset vt8623_h_blank_start_regs[] = {{0x02, 0, 7}, VGA_REGSET_END};
+struct vga_regset vt8623_h_blank_end_regs[]   = {{0x03, 0, 4}, {0x05, 7, 7}, {0x33, 5, 5}, VGA_REGSET_END};
+struct vga_regset vt8623_h_sync_start_regs[]  = {{0x04, 0, 7}, {0x33, 4, 4}, VGA_REGSET_END};
+struct vga_regset vt8623_h_sync_end_regs[]    = {{0x05, 0, 4}, VGA_REGSET_END};
+
+struct vga_regset vt8623_v_total_regs[]       = {{0x06, 0, 7}, {0x07, 0, 0}, {0x07, 5, 5}, {0x35, 0, 0}, VGA_REGSET_END};
+struct vga_regset vt8623_v_display_regs[]     = {{0x12, 0, 7}, {0x07, 1, 1}, {0x07, 6, 6}, {0x35, 2, 2}, VGA_REGSET_END};
+struct vga_regset vt8623_v_blank_start_regs[] = {{0x15, 0, 7}, {0x07, 3, 3}, {0x09, 5, 5}, {0x35, 3, 3}, VGA_REGSET_END};
+struct vga_regset vt8623_v_blank_end_regs[]   = {{0x16, 0, 7}, VGA_REGSET_END};
+struct vga_regset vt8623_v_sync_start_regs[]  = {{0x10, 0, 7}, {0x07, 2, 2}, {0x07, 7, 7}, {0x35, 1, 1}, VGA_REGSET_END};
+struct vga_regset vt8623_v_sync_end_regs[]    = {{0x11, 0, 3}, VGA_REGSET_END};
+
+struct vga_regset vt8623_offset_regs[]        = {{0x13, 0, 7}, {0x35, 5, 7}, VGA_REGSET_END};
+struct vga_regset vt8623_line_compare_regs[]  = {{0x18, 0, 7}, {0x07, 4, 4}, {0x09, 6, 6}, {0x33, 0, 2}, {0x35, 4, 4}, VGA_REGSET_END};
+struct vga_regset vt8623_fetch_count_regs[]   = {{0x1C, 0, 7}, {0x1D, 0, 1}, VGA_REGSET_END};
+struct vga_regset vt8623_start_address_regs[] = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x34, 0, 7}, {0x48, 0, 1}, VGA_REGSET_END};
+
+struct svga_timing_regs vt8623_timing_regs     = {
+        vt8623_h_total_regs, vt8623_h_display_regs, vt8623_h_blank_start_regs,
+        vt8623_h_blank_end_regs, vt8623_h_sync_start_regs, vt8623_h_sync_end_regs,
+        vt8623_v_total_regs, vt8623_v_display_regs, vt8623_v_blank_start_regs,
+        vt8623_v_blank_end_regs, vt8623_v_sync_start_regs, vt8623_v_sync_end_regs,
+};
+
+
+/* ------------------------------------------------------------------------- */
+
+
+/* Module parameters */
+
+static char *mode = "640x480-8@60";
+
+#ifdef CONFIG_MTRR
+static int mtrr = 1;
+#endif
+
+MODULE_AUTHOR("(c) 2006 Ondrej Zajicek <santiago@crfreenet.org>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("fbdev driver for integrated graphics core in VIA VT8623 [CLE266]");
+
+module_param(mode, charp, 0644);
+MODULE_PARM_DESC(mode, "Default video mode ('640x480-8@60', etc)");
+
+#ifdef CONFIG_MTRR
+module_param(mtrr, int, 0444);
+MODULE_PARM_DESC(mtrr, "Enable write-combining with MTRR (1=enable, 0=disable, default=1)");
+#endif
+
+
+/* ------------------------------------------------------------------------- */
+
+
+static struct fb_tile_ops vt8623fb_tile_ops = {
+        .fb_settile     = svga_settile,
+        .fb_tilecopy    = svga_tilecopy,
+        .fb_tilefill    = svga_tilefill,
+        .fb_tileblit    = svga_tileblit,
+        .fb_tilecursor  = svga_tilecursor,
+        .fb_get_tilemax = svga_get_tilemax,
+};
+
+
+/* ------------------------------------------------------------------------- */
+
+
+/* image data is MSB-first, fb structure is MSB-first too */
+static inline u32 expand_color(u32 c)
+{
+        return ((c & 1) | ((c & 2) << 7) | ((c & 4) << 14) | ((c & 8) << 21)) * 0xFF;
+}
+
+/* vt8623fb_iplan_imageblit silently assumes that almost everything is 8-pixel aligned */
+static void vt8623fb_iplan_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+        u32 fg = expand_color(image->fg_color);
+        u32 bg = expand_color(image->bg_color);
+        const u8 *src1, *src;
+        u8 __iomem *dst1;
+        u32 __iomem *dst;
+        u32 val;
+        int x, y;
+
+        src1 = image->data;
+        dst1 = info->screen_base + (image->dy * info->fix.line_length)
+                 + ((image->dx / 8) * 4);
+
+        for (y = 0; y < image->height; y++) {
+                src = src1;
+                dst = (u32 __iomem *) dst1;
+                for (x = 0; x < image->width; x += 8) {
+                        val = *(src++) * 0x01010101;
+                        val = (val & fg) | (~val & bg);
+                        fb_writel(val, dst++);
+                }
+                src1 += image->width / 8;
+                dst1 += info->fix.line_length;
+        }
+}
+
+/* vt8623fb_iplan_fillrect silently assumes that almost everything is 8-pixel aligned */
+static void vt8623fb_iplan_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+        u32 fg = expand_color(rect->color);
+        u8 __iomem *dst1;
+        u32 __iomem *dst;
+        int x, y;
+
+        dst1 = info->screen_base + (rect->dy * info->fix.line_length)
+                 + ((rect->dx / 8) * 4);
+
+        for (y = 0; y < rect->height; y++) {
+                dst = (u32 __iomem *) dst1;
+                for (x = 0; x < rect->width; x += 8) {
+                        fb_writel(fg, dst++);
+                }
+                dst1 += info->fix.line_length;
+        }
+}
+
+
+/* image data is MSB-first, fb structure is high-nibble-in-low-byte-first */
+static inline u32 expand_pixel(u32 c)
+{
+        return (((c &  1) << 24) | ((c &  2) << 27) | ((c &  4) << 14) | ((c &   8) << 17) |
+                ((c & 16) <<  4) | ((c & 32) <<  7) | ((c & 64) >>  6) | ((c & 128) >>  3)) * 0xF;
+}
+
+/* vt8623fb_cfb4_imageblit silently assumes that almost everything is 8-pixel aligned */
+static void vt8623fb_cfb4_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+        u32 fg = image->fg_color * 0x11111111;
+        u32 bg = image->bg_color * 0x11111111;
+        const u8 *src1, *src;
+        u8 __iomem *dst1;
+        u32 __iomem *dst;
+        u32 val;
+        int x, y;
+
+        src1 = image->data;
+        dst1 = info->screen_base + (image->dy * info->fix.line_length)
+                 + ((image->dx / 8) * 4);
+
+        for (y = 0; y < image->height; y++) {
+                src = src1;
+                dst = (u32 __iomem *) dst1;
+                for (x = 0; x < image->width; x += 8) {
+                        val = expand_pixel(*(src++));
+                        val = (val & fg) | (~val & bg);
+                        fb_writel(val, dst++);
+                }
+                src1 += image->width / 8;
+                dst1 += info->fix.line_length;
+        }
+}
+
+static void vt8623fb_imageblit(struct fb_info *info, const struct fb_image *image)
+{
+        if ((info->var.bits_per_pixel == 4) && (image->depth == 1)
+            && ((image->width % 8) == 0) && ((image->dx % 8) == 0)) {
+                if (info->fix.type == FB_TYPE_INTERLEAVED_PLANES)
+                        vt8623fb_iplan_imageblit(info, image);
+                else
+                        vt8623fb_cfb4_imageblit(info, image);
+        } else
+                cfb_imageblit(info, image);
+}
+
+static void vt8623fb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
+{
+        if ((info->var.bits_per_pixel == 4)
+            && ((rect->width % 8) == 0) && ((rect->dx % 8) == 0)
+            && (info->fix.type == FB_TYPE_INTERLEAVED_PLANES))
+                vt8623fb_iplan_fillrect(info, rect);
+         else
+                cfb_fillrect(info, rect);
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+
+static void vt8623_set_pixclock(struct fb_info *info, u32 pixclock)
+{
+        u16 m, n, r;
+        u8 regval;
+        int rv;
+
+        rv = svga_compute_pll(&vt8623_pll, 1000000000 / pixclock, &m, &n, &r, info->node);
+        if (rv < 0) {
+                printk(KERN_ERR "fb%d: cannot set requested pixclock, keeping old value\n", info->node);
+                return;
+        }
+
+        /* Set VGA misc register  */
+        regval = vga_r(NULL, VGA_MIS_R);
+        vga_w(NULL, VGA_MIS_W, regval | VGA_MIS_ENB_PLL_LOAD);
+
+        /* Set clock registers */
+        vga_wseq(NULL, 0x46, (n  | (r << 6)));
+        vga_wseq(NULL, 0x47, m);
+
+        udelay(1000);
+
+        /* PLL reset */
+        svga_wseq_mask(0x40, 0x02, 0x02);
+        svga_wseq_mask(0x40, 0x00, 0x02);
+}
+
+
+static int vt8623fb_open(struct fb_info *info, int user)
+{
+        struct vt8623fb_info *par = info->par;
+
+        mutex_lock(&(par->open_lock));
+        if (par->ref_count == 0) {
+                memset(&(par->state), 0, sizeof(struct vgastate));
+                par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS | VGA_SAVE_CMAP;
+                par->state.num_crtc = 0xA2;
+                par->state.num_seq = 0x50;
+                save_vga(&(par->state));
+        }
+
+        par->ref_count++;
+        mutex_unlock(&(par->open_lock));
+
+        return 0;
+}
+
+static int vt8623fb_release(struct fb_info *info, int user)
+{
+        struct vt8623fb_info *par = info->par;
+
+        mutex_lock(&(par->open_lock));
+        if (par->ref_count == 0) {
+                mutex_unlock(&(par->open_lock));
+                return -EINVAL;
+        }
+
+        if (par->ref_count == 1)
+                restore_vga(&(par->state));
+
+        par->ref_count--;
+        mutex_unlock(&(par->open_lock));
+
+        return 0;
+}
+
+static int vt8623fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+        int rv, mem, step;
+
+        /* Find appropriate format */
+        rv = svga_match_format (vt8623fb_formats, var, NULL);
+        if (rv < 0)
+        {
+                printk(KERN_ERR "fb%d: unsupported mode requested\n", info->node);
+                return rv;
+        }
+
+        /* Do not allow to have real resoulution larger than virtual */
+        if (var->xres > var->xres_virtual)
+                var->xres_virtual = var->xres;
+
+        if (var->yres > var->yres_virtual)
+                var->yres_virtual = var->yres;
+
+        /* Round up xres_virtual to have proper alignment of lines */
+        step = vt8623fb_formats[rv].xresstep - 1;
+        var->xres_virtual = (var->xres_virtual+step) & ~step;
+
+        /* Check whether have enough memory */
+        mem = ((var->bits_per_pixel * var->xres_virtual) >> 3) * var->yres_virtual;
+        if (mem > info->screen_size)
+        {
+                printk(KERN_ERR "fb%d: not enough framebuffer memory (%d kB requested , %d kB available)\n", info->node, mem >> 10, (unsigned int) (info->screen_size >> 10));
+                return -EINVAL;
+        }
+
+        /* Text mode is limited to 256 kB of memory */
+        if ((var->bits_per_pixel == 0) && (mem > (256*1024)))
+        {
+                printk(KERN_ERR "fb%d: text framebuffer size too large (%d kB requested, 256 kB possible)\n", info->node, mem >> 10);
+                return -EINVAL;
+        }
+
+        rv = svga_check_timings (&vt8623_timing_regs, var, info->node);
+        if (rv < 0)
+        {
+                printk(KERN_ERR "fb%d: invalid timings requested\n", info->node);
+                return rv;
+        }
+
+        /* Interlaced mode not supported */
+        if (var->vmode & FB_VMODE_INTERLACED)
+                return -EINVAL;
+
+        return 0;
+}
+
+
+static int vt8623fb_set_par(struct fb_info *info)
+{
+        u32 mode, offset_value, fetch_value, screen_size;
+        u32 bpp = info->var.bits_per_pixel;
+
+        if (bpp != 0) {
+                info->fix.ypanstep = 1;
+                info->fix.line_length = (info->var.xres_virtual * bpp) / 8;
+
+                info->flags &= ~FBINFO_MISC_TILEBLITTING;
+                info->tileops = NULL;
+
+                /* in 4bpp supports 8p wide tiles only, any tiles otherwise */
+                info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
+                info->pixmap.blit_y = ~(u32)0;
+
+                offset_value = (info->var.xres_virtual * bpp) / 64;
+                fetch_value  = ((info->var.xres * bpp) / 128) + 4;
+
+                if (bpp == 4)
+                        fetch_value  = (info->var.xres / 8) + 8; /* + 0 is OK */
+
+                screen_size  = info->var.yres_virtual * info->fix.line_length;
+        } else {
+                info->fix.ypanstep = 16;
+                info->fix.line_length = 0;
+
+                info->flags |= FBINFO_MISC_TILEBLITTING;
+                info->tileops = &vt8623fb_tile_ops;
+
+                /* supports 8x16 tiles only */
+                info->pixmap.blit_x = 1 << (8 - 1);
+                info->pixmap.blit_y = 1 << (16 - 1);
+
+                offset_value = info->var.xres_virtual / 16;
+                fetch_value  = (info->var.xres / 8) + 8;
+                screen_size  = (info->var.xres_virtual * info->var.yres_virtual) / 64;
+        }
+
+        info->var.xoffset = 0;
+        info->var.yoffset = 0;
+        info->var.activate = FB_ACTIVATE_NOW;
+
+        /* Unlock registers */
+        svga_wseq_mask(0x10, 0x01, 0x01);
+        svga_wcrt_mask(0x11, 0x00, 0x80);
+        svga_wcrt_mask(0x47, 0x00, 0x01);
+
+        /* Device, screen and sync off */
+        svga_wseq_mask(0x01, 0x20, 0x20);
+        svga_wcrt_mask(0x36, 0x30, 0x30);
+        svga_wcrt_mask(0x17, 0x00, 0x80);
+
+        /* Set default values */
+        svga_set_default_gfx_regs();
+        svga_set_default_atc_regs();
+        svga_set_default_seq_regs();
+        svga_set_default_crt_regs();
+        svga_wcrt_multi(vt8623_line_compare_regs, 0xFFFFFFFF);
+        svga_wcrt_multi(vt8623_start_address_regs, 0);
+
+        svga_wcrt_multi(vt8623_offset_regs, offset_value);
+        svga_wseq_multi(vt8623_fetch_count_regs, fetch_value);
+
+        if (info->var.vmode & FB_VMODE_DOUBLE)
+                svga_wcrt_mask(0x09, 0x80, 0x80);
+        else
+                svga_wcrt_mask(0x09, 0x00, 0x80);
+
+        svga_wseq_mask(0x1E, 0xF0, 0xF0); // DI/DVP bus
+        svga_wseq_mask(0x2A, 0x0F, 0x0F); // DI/DVP bus
+        svga_wseq_mask(0x16, 0x08, 0xBF); // FIFO read treshold
+        vga_wseq(NULL, 0x17, 0x1F);       // FIFO depth
+        vga_wseq(NULL, 0x18, 0x4E);
+        svga_wseq_mask(0x1A, 0x08, 0x08); // enable MMIO ?
+
+        vga_wcrt(NULL, 0x32, 0x00);
+        vga_wcrt(NULL, 0x34, 0x00);
+        vga_wcrt(NULL, 0x6A, 0x80);
+        vga_wcrt(NULL, 0x6A, 0xC0);
+
+        vga_wgfx(NULL, 0x20, 0x00);
+        vga_wgfx(NULL, 0x21, 0x00);
+        vga_wgfx(NULL, 0x22, 0x00);
+
+        /* Set SR15 according to number of bits per pixel */
+        mode = svga_match_format(vt8623fb_formats, &(info->var), &(info->fix));
+        switch (mode) {
+        case 0:
+                pr_debug("fb%d: text mode\n", info->node);
+                svga_set_textmode_vga_regs();
+                svga_wseq_mask(0x15, 0x00, 0xFE);
+                svga_wcrt_mask(0x11, 0x60, 0x70);
+                break;
+        case 1:
+                pr_debug("fb%d: 4 bit pseudocolor\n", info->node);
+                vga_wgfx(NULL, VGA_GFX_MODE, 0x40);
+                svga_wseq_mask(0x15, 0x20, 0xFE);
+                svga_wcrt_mask(0x11, 0x00, 0x70);
+                break;
+        case 2:
+                pr_debug("fb%d: 4 bit pseudocolor, planar\n", info->node);
+                svga_wseq_mask(0x15, 0x00, 0xFE);
+                svga_wcrt_mask(0x11, 0x00, 0x70);
+                break;
+        case 3:
+                pr_debug("fb%d: 8 bit pseudocolor\n", info->node);
+                svga_wseq_mask(0x15, 0x22, 0xFE);
+                break;
+        case 4:
+                pr_debug("fb%d: 5/6/5 truecolor\n", info->node);
+                svga_wseq_mask(0x15, 0xB6, 0xFE);
+                break;
+        case 5:
+                pr_debug("fb%d: 8/8/8 truecolor\n", info->node);
+                svga_wseq_mask(0x15, 0xAE, 0xFE);
+                break;
+        default:
+                printk(KERN_ERR "vt8623fb: unsupported mode - bug\n");
+                return (-EINVAL);
+        }
+
+        vt8623_set_pixclock(info, info->var.pixclock);
+        svga_set_timings(&vt8623_timing_regs, &(info->var), 1, 1,
+                         (info->var.vmode & FB_VMODE_DOUBLE) ? 2 : 1, 1,
+                         1, info->node);
+
+        memset_io(info->screen_base, 0x00, screen_size);
+
+        /* Device and screen back on */
+        svga_wcrt_mask(0x17, 0x80, 0x80);
+        svga_wcrt_mask(0x36, 0x00, 0x30);
+        svga_wseq_mask(0x01, 0x00, 0x20);
+
+        return 0;
+}
+
+
+static int vt8623fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+                                u_int transp, struct fb_info *fb)
+{
+        switch (fb->var.bits_per_pixel) {
+        case 0:
+        case 4:
+                if (regno >= 16)
+                        return -EINVAL;
+
+                outb(0x0F, VGA_PEL_MSK);
+                outb(regno, VGA_PEL_IW);
+                outb(red >> 10, VGA_PEL_D);
+                outb(green >> 10, VGA_PEL_D);
+                outb(blue >> 10, VGA_PEL_D);
+                break;
+        case 8:
+                if (regno >= 256)
+                        return -EINVAL;
+
+                outb(0xFF, VGA_PEL_MSK);
+                outb(regno, VGA_PEL_IW);
+                outb(red >> 10, VGA_PEL_D);
+                outb(green >> 10, VGA_PEL_D);
+                outb(blue >> 10, VGA_PEL_D);
+                break;
+        case 16:
+                if (regno >= 16)
+                        return 0;
+
+                if (fb->var.green.length == 5)
+                        ((u32*)fb->pseudo_palette)[regno] = ((red & 0xF800) >> 1) |
+                                ((green & 0xF800) >> 6) | ((blue & 0xF800) >> 11);
+                else if (fb->var.green.length == 6)
+                        ((u32*)fb->pseudo_palette)[regno] = (red & 0xF800) |
+                                ((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11);
+                else
+                        return -EINVAL;
+                break;
+        case 24:
+        case 32:
+                if (regno >= 16)
+                        return 0;
+
+                /* ((transp & 0xFF00) << 16) */
+                ((u32*)fb->pseudo_palette)[regno] = ((red & 0xFF00) << 8) |
+                        (green & 0xFF00) | ((blue & 0xFF00) >> 8);
+                break;
+        default:
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+
+static int vt8623fb_blank(int blank_mode, struct fb_info *info)
+{
+        switch (blank_mode) {
+        case FB_BLANK_UNBLANK:
+                pr_debug("fb%d: unblank\n", info->node);
+                svga_wcrt_mask(0x36, 0x00, 0x30);
+                svga_wseq_mask(0x01, 0x00, 0x20);
+                break;
+        case FB_BLANK_NORMAL:
+                pr_debug("fb%d: blank\n", info->node);
+                svga_wcrt_mask(0x36, 0x00, 0x30);
+                svga_wseq_mask(0x01, 0x20, 0x20);
+                break;
+        case FB_BLANK_HSYNC_SUSPEND:
+                pr_debug("fb%d: DPMS standby (hsync off)\n", info->node);
+                svga_wcrt_mask(0x36, 0x10, 0x30);
+                svga_wseq_mask(0x01, 0x20, 0x20);
+                break;
+        case FB_BLANK_VSYNC_SUSPEND:
+                pr_debug("fb%d: DPMS suspend (vsync off)\n", info->node);
+                svga_wcrt_mask(0x36, 0x20, 0x30);
+                svga_wseq_mask(0x01, 0x20, 0x20);
+                break;
+        case FB_BLANK_POWERDOWN:
+                pr_debug("fb%d: DPMS off (no sync)\n", info->node);
+                svga_wcrt_mask(0x36, 0x30, 0x30);
+                svga_wseq_mask(0x01, 0x20, 0x20);
+                break;
+        }
+
+        return 0;
+}
+
+
+static int vt8623fb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+        unsigned int offset;
+
+        /* Calculate the offset */
+        if (var->bits_per_pixel == 0) {
+                offset = (var->yoffset / 16) * var->xres_virtual + var->xoffset;
+                offset = offset >> 3;
+        } else {
+                offset = (var->yoffset * info->fix.line_length) +
+                         (var->xoffset * var->bits_per_pixel / 8);
+                offset = offset >> ((var->bits_per_pixel == 4) ? 2 : 1);
+        }
+
+        /* Set the offset */
+        svga_wcrt_multi(vt8623_start_address_regs, offset);
+
+        return 0;
+}
+
+
+/* ------------------------------------------------------------------------- */
+
+
+/* Frame buffer operations */
+
+static struct fb_ops vt8623fb_ops = {
+        .owner          = THIS_MODULE,
+        .fb_open        = vt8623fb_open,
+        .fb_release     = vt8623fb_release,
+        .fb_check_var   = vt8623fb_check_var,
+        .fb_set_par     = vt8623fb_set_par,
+        .fb_setcolreg   = vt8623fb_setcolreg,
+        .fb_blank       = vt8623fb_blank,
+        .fb_pan_display = vt8623fb_pan_display,
+        .fb_fillrect    = vt8623fb_fillrect,
+        .fb_copyarea    = cfb_copyarea,
+        .fb_imageblit   = vt8623fb_imageblit,
+        .fb_get_caps    = svga_get_caps,
+};
+
+
+/* PCI probe */
+
+static int __devinit vt8623_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
+{
+        struct fb_info *info;
+        struct vt8623fb_info *par;
+        unsigned int memsize1, memsize2;
+        int rc;
+
+        /* Ignore secondary VGA device because there is no VGA arbitration */
+        if (! svga_primary_device(dev)) {
+                dev_info(&(dev->dev), "ignoring secondary device\n");
+                return -ENODEV;
+        }
+
+        /* Allocate and fill driver data structure */
+        info = framebuffer_alloc(sizeof(struct vt8623fb_info), NULL);
+        if (! info) {
+                dev_err(&(dev->dev), "cannot allocate memory\n");
+                return -ENOMEM;
+        }
+
+        par = info->par;
+        mutex_init(&par->open_lock);
+
+        info->flags = FBINFO_PARTIAL_PAN_OK | FBINFO_HWACCEL_YPAN;
+        info->fbops = &vt8623fb_ops;
+
+        /* Prepare PCI device */
+
+        rc = pci_enable_device(dev);
+        if (rc < 0) {
+                dev_err(&(dev->dev), "cannot enable PCI device\n");
+                goto err_enable_device;
+        }
+
+        rc = pci_request_regions(dev, "vt8623fb");
+        if (rc < 0) {
+                dev_err(&(dev->dev), "cannot reserve framebuffer region\n");
+                goto err_request_regions;
+        }
+
+        info->fix.smem_start = pci_resource_start(dev, 0);
+        info->fix.smem_len = pci_resource_len(dev, 0);
+        info->fix.mmio_start = pci_resource_start(dev, 1);
+        info->fix.mmio_len = pci_resource_len(dev, 1);
+
+        /* Map physical IO memory address into kernel space */
+        info->screen_base = pci_iomap(dev, 0, 0);
+        if (! info->screen_base) {
+                rc = -ENOMEM;
+                dev_err(&(dev->dev), "iomap for framebuffer failed\n");
+                goto err_iomap_1;
+        }
+
+        par->mmio_base = pci_iomap(dev, 1, 0);
+        if (! par->mmio_base) {
+                rc = -ENOMEM;
+                dev_err(&(dev->dev), "iomap for MMIO failed\n");
+                goto err_iomap_2;
+        }
+
+        /* Find how many physical memory there is on card */
+        memsize1 = (vga_rseq(NULL, 0x34) + 1) >> 1;
+        memsize2 = vga_rseq(NULL, 0x39) << 2;
+
+        if ((16 <= memsize1) && (memsize1 <= 64) && (memsize1 == memsize2))
+                info->screen_size = memsize1 << 20;
+        else {
+                dev_err(&(dev->dev), "memory size detection failed (%x %x), suppose 16 MB\n", memsize1, memsize2);
+                info->screen_size = 16 << 20;
+        }
+
+        info->fix.smem_len = info->screen_size;
+        strcpy(info->fix.id, "VIA VT8623");
+        info->fix.type = FB_TYPE_PACKED_PIXELS;
+        info->fix.visual = FB_VISUAL_PSEUDOCOLOR;
+        info->fix.ypanstep = 0;
+        info->fix.accel = FB_ACCEL_NONE;
+        info->pseudo_palette = (void*)par->pseudo_palette;
+
+        /* Prepare startup mode */
+
+        rc = fb_find_mode(&(info->var), info, mode, NULL, 0, NULL, 8);
+        if (! ((rc == 1) || (rc == 2))) {
+                rc = -EINVAL;
+                dev_err(&(dev->dev), "mode %s not found\n", mode);
+                goto err_find_mode;
+        }
+
+        rc = fb_alloc_cmap(&info->cmap, 256, 0);
+        if (rc < 0) {
+                dev_err(&(dev->dev), "cannot allocate colormap\n");
+                goto err_alloc_cmap;
+        }
+
+        rc = register_framebuffer(info);
+        if (rc < 0) {
+                dev_err(&(dev->dev), "cannot register framebugger\n");
+                goto err_reg_fb;
+        }
+
+        printk(KERN_INFO "fb%d: %s on %s, %d MB RAM\n", info->node, info->fix.id,
+                 pci_name(dev), info->fix.smem_len >> 20);
+
+        /* Record a reference to the driver data */
+        pci_set_drvdata(dev, info);
+
+#ifdef CONFIG_MTRR
+        if (mtrr) {
+                par->mtrr_reg = -1;
+                par->mtrr_reg = mtrr_add(info->fix.smem_start, info->fix.smem_len, MTRR_TYPE_WRCOMB, 1);
+        }
+#endif
+
+        return 0;
+
+        /* Error handling */
+err_reg_fb:
+        fb_dealloc_cmap(&info->cmap);
+err_alloc_cmap:
+err_find_mode:
+        pci_iounmap(dev, par->mmio_base);
+err_iomap_2:
+        pci_iounmap(dev, info->screen_base);
+err_iomap_1:
+        pci_release_regions(dev);
+err_request_regions:
+/*      pci_disable_device(dev); */
+err_enable_device:
+        framebuffer_release(info);
+        return rc;
+}
+
+/* PCI remove */
+
+static void __devexit vt8623_pci_remove(struct pci_dev *dev)
+{
+        struct fb_info *info = pci_get_drvdata(dev);
+        struct vt8623fb_info *par = info->par;
+
+        if (info) {
+#ifdef CONFIG_MTRR
+                if (par->mtrr_reg >= 0) {
+                        mtrr_del(par->mtrr_reg, 0, 0);
+                        par->mtrr_reg = -1;
+                }
+#endif
+
+                unregister_framebuffer(info);
+                fb_dealloc_cmap(&info->cmap);
+
+                pci_iounmap(dev, info->screen_base);
+                pci_iounmap(dev, par->mmio_base);
+                pci_release_regions(dev);
+/*              pci_disable_device(dev); */
+
+                pci_set_drvdata(dev, NULL);
+                framebuffer_release(info);
+        }
+}
+
+
+#ifdef CONFIG_PM
+/* PCI suspend */
+
+static int vt8623_pci_suspend(struct pci_dev* dev, pm_message_t state)
+{
+        struct fb_info *info = pci_get_drvdata(dev);
+        struct vt8623fb_info *par = info->par;
+
+        dev_info(&(dev->dev), "suspend\n");
+
+        acquire_console_sem();
+        mutex_lock(&(par->open_lock));
+
+        if ((state.event == PM_EVENT_FREEZE) || (par->ref_count == 0)) {
+                mutex_unlock(&(par->open_lock));
+                release_console_sem();
+                return 0;
+        }
+
+        fb_set_suspend(info, 1);
+
+        pci_save_state(dev);
+        pci_disable_device(dev);
+        pci_set_power_state(dev, pci_choose_state(dev, state));
+
+        mutex_unlock(&(par->open_lock));
+        release_console_sem();
+
+        return 0;
+}
+
+
+/* PCI resume */
+
+static int vt8623_pci_resume(struct pci_dev* dev)
+{
+        struct fb_info *info = pci_get_drvdata(dev);
+        struct vt8623fb_info *par = info->par;
+
+        dev_info(&(dev->dev), "resume\n");
+
+        acquire_console_sem();
+        mutex_lock(&(par->open_lock));
+
+        if (par->ref_count == 0) {
+                mutex_unlock(&(par->open_lock));
+                release_console_sem();
+                return 0;
+        }
+
+        pci_set_power_state(dev, PCI_D0);
+        pci_restore_state(dev);
+
+        if (pci_enable_device(dev))
+                goto fail;
+
+        pci_set_master(dev);
+
+        vt8623fb_set_par(info);
+        fb_set_suspend(info, 0);
+
+        mutex_unlock(&(par->open_lock));
+fail:
+        release_console_sem();
+
+        return 0;
+}
+#else
+#define vt8623_pci_suspend NULL
+#define vt8623_pci_resume NULL
+#endif /* CONFIG_PM */
+
+/* List of boards that we are trying to support */
+
+static struct pci_device_id vt8623_devices[] __devinitdata = {
+        {PCI_DEVICE(PCI_VENDOR_ID_VIA, 0x3122)},
+        {0, 0, 0, 0, 0, 0, 0}
+};
+
+MODULE_DEVICE_TABLE(pci, vt8623_devices);
+
+static struct pci_driver vt8623fb_pci_driver = {
+        .name           = "vt8623fb",
+        .id_table       = vt8623_devices,
+        .probe          = vt8623_pci_probe,
+        .remove         = __devexit_p(vt8623_pci_remove),
+        .suspend        = vt8623_pci_suspend,
+        .resume         = vt8623_pci_resume,
+};
+
+/* Cleanup */
+
+static void __exit vt8623fb_cleanup(void)
+{
+        pr_debug("vt8623fb: cleaning up\n");
+        pci_unregister_driver(&vt8623fb_pci_driver);
+}
+
+/* Driver Initialisation */
+
+int __init vt8623fb_init(void)
+{
+
+#ifndef MODULE
+        char *option = NULL;
+
+        if (fb_get_options("vt8623fb", &option))
+                return -ENODEV;
+
+        if (option && *option)
+                mode = option;
+#endif
+
+        pr_debug("vt8623fb: initializing\n");
+        return pci_register_driver(&vt8623fb_pci_driver);
+}
+
+/* ------------------------------------------------------------------------- */
+
+/* Modularization */
+
+module_init(vt8623fb_init);
+module_exit(vt8623fb_cleanup);
diff --git a/drivers/w1/Kconfig b/drivers/w1/Kconfig
index c287a9ae4fdd..ca75b3ad3a2e 100644
--- a/drivers/w1/Kconfig
+++ b/drivers/w1/Kconfig
@@ -1,4 +1,5 @@
 menu "Dallas's 1-wire bus"
+        depends on HAS_IOMEM
 
 config W1
         tristate "Dallas's 1-wire support"