Merge branch 'upstream'

19 files changed, 181 insertions, 106 deletions

diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 418fc7b896ac..6252b9ddc01e 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -660,7 +660,12 @@ static int adpt_abort(struct scsi_cmnd * cmd)
         msg[2] = 0;
         msg[3]= 0; 
         msg[4] = (u32)cmd;
-        if( (rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER)) != 0){
+        if (pHba->host)
+                spin_lock_irq(pHba->host->host_lock);
+        rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER);
+        if (pHba->host)
+                spin_unlock_irq(pHba->host->host_lock);
+        if (rcode != 0) {
                 if(rcode == -EOPNOTSUPP ){
                         printk(KERN_INFO"%s: Abort cmd not supported\n",pHba->name);
                         return FAILED;
@@ -697,10 +702,15 @@ static int adpt_device_reset(struct scsi_cmnd* cmd)
         msg[2] = 0;
         msg[3] = 0;
 
+        if (pHba->host)
+                spin_lock_irq(pHba->host->host_lock);
         old_state = d->state;
         d->state |= DPTI_DEV_RESET;
-        if( (rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER)) ){
-                d->state = old_state;
+        rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
+        d->state = old_state;
+        if (pHba->host)
+                spin_unlock_irq(pHba->host->host_lock);
+        if (rcode != 0) {
                 if(rcode == -EOPNOTSUPP ){
                         printk(KERN_INFO"%s: Device reset not supported\n",pHba->name);
                         return FAILED;
@@ -708,7 +718,6 @@ static int adpt_device_reset(struct scsi_cmnd* cmd)
                 printk(KERN_INFO"%s: Device reset failed\n",pHba->name);
                 return FAILED;
         } else {
-                d->state = old_state;
                 printk(KERN_INFO"%s: Device reset successful\n",pHba->name);
                 return SUCCESS;
         }
@@ -721,6 +730,7 @@ static int adpt_bus_reset(struct scsi_cmnd* cmd)
 {
         adpt_hba* pHba;
         u32 msg[4];
+        u32 rcode;
 
         pHba = (adpt_hba*)cmd->device->host->hostdata[0];
         memset(msg, 0, sizeof(msg));
@@ -729,7 +739,12 @@ static int adpt_bus_reset(struct scsi_cmnd* cmd)
         msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->device->channel].tid);
         msg[2] = 0;
         msg[3] = 0;
-        if(adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER) ){
+        if (pHba->host)
+                spin_lock_irq(pHba->host->host_lock);
+        rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
+        if (pHba->host)
+                spin_unlock_irq(pHba->host->host_lock);
+        if (rcode != 0) {
                 printk(KERN_WARNING"%s: Bus reset failed.\n",pHba->name);
                 return FAILED;
         } else {
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h
index 8bec0438dc8a..5b0edd1f1921 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.h
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.h
@@ -100,7 +100,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
 void ibmvscsi_release_crq_queue(struct crq_queue *queue,
                                 struct ibmvscsi_host_data *hostdata,
                                 int max_requests);
-void ibmvscsi_reset_crq_queue(struct crq_queue *queue,
+int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
                               struct ibmvscsi_host_data *hostdata);
 
 void ibmvscsi_handle_crq(struct viosrp_crq *crq,
diff --git a/drivers/scsi/ibmvscsi/iseries_vscsi.c b/drivers/scsi/ibmvscsi/iseries_vscsi.c
index 1045872b0175..ce15d9e39621 100644
--- a/drivers/scsi/ibmvscsi/iseries_vscsi.c
+++ b/drivers/scsi/ibmvscsi/iseries_vscsi.c
@@ -117,9 +117,10 @@ void ibmvscsi_release_crq_queue(struct crq_queue *queue,
  *
  * no-op for iSeries
  */
-void ibmvscsi_reset_crq_queue(struct crq_queue *queue,
+int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
                               struct ibmvscsi_host_data *hostdata)
 {
+        return 0;
 }
 
 /**
diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c
index 8bf5652f1060..75db2f5c545e 100644
--- a/drivers/scsi/ibmvscsi/rpa_vscsi.c
+++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c
@@ -230,6 +230,11 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
         rc = plpar_hcall_norets(H_REG_CRQ,
                                 vdev->unit_address,
                                 queue->msg_token, PAGE_SIZE);
+        if (rc == H_Resource) 
+                /* maybe kexecing and resource is busy. try a reset */
+                rc = ibmvscsi_reset_crq_queue(queue,
+                                              hostdata);
+
         if (rc == 2) {
                 /* Adapter is good, but other end is not ready */
                 printk(KERN_WARNING "ibmvscsi: Partner adapter not ready\n");
@@ -281,7 +286,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
  * @hostdata:   ibmvscsi_host_data of host
  *
  */
-void ibmvscsi_reset_crq_queue(struct crq_queue *queue,
+int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
                               struct ibmvscsi_host_data *hostdata)
 {
         int rc;
@@ -309,4 +314,5 @@ void ibmvscsi_reset_crq_queue(struct crq_queue *queue,
                 printk(KERN_WARNING
                        "ibmvscsi: couldn't register crq--rc 0x%x\n", rc);
         }
+        return rc;
 }
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 4fea3e4edaa7..3d8009f55342 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -3368,7 +3368,7 @@ iscsi_conn_set_param(iscsi_connh_t connh, enum iscsi_param param,
         switch(param) {
         case ISCSI_PARAM_MAX_RECV_DLENGTH: {
                 char *saveptr = conn->data;
-                int flags = GFP_KERNEL;
+                gfp_t flags = GFP_KERNEL;
 
                 if (conn->data_size >= value) {
                         conn->max_recv_dlength = value;
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 665ce382eb23..094c9c88a095 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -2040,7 +2040,7 @@ static int atapi_qc_complete(struct ata_queued_cmd *qc)
         else {
                 u8 *scsicmd = cmd->cmnd;
 
-                if (scsicmd[0] == INQUIRY) {
+                if ((scsicmd[0] == INQUIRY) && ((scsicmd[1] & 0x03) == 0)) {
                         u8 *buf = NULL;
                         unsigned int buflen;
 
@@ -2054,9 +2054,6 @@ static int atapi_qc_complete(struct ata_queued_cmd *qc)
          * device.  2) Ensure response data format / ATAPI information
          * are always correct.
          */
-        /* FIXME: do we ever override EVPD pages and the like, with
-         * this code?
-         */
                         if (buf[2] == 0) {
                                 buf[2] = 0x5;
                                 buf[3] = 0x32;
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index f9792528e33f..578143e93a6f 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -664,7 +664,7 @@ mega_build_cmd(adapter_t *adapter, Scsi_Cmnd *cmd, int *busy)
                                         sg->offset;
                         } else
                                 buf = cmd->request_buffer;
-                        memset(cmd->request_buffer, 0, cmd->cmnd[4]);
+                        memset(buf, 0, cmd->cmnd[4]);
                         if (cmd->use_sg) {
                                 struct scatterlist *sg;
 
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 7096945ea234..7b3efd531297 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2476,17 +2476,9 @@ typedef struct scsi_qla_host {
  */
 #define LOOP_TRANSITION(ha) \
         (test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || \
-         test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
-
-#define LOOP_NOT_READY(ha) \
-        ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) || \
-          test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) || \
-          test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || \
-          test_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags)) || \
+         test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) || \
          atomic_read(&ha->loop_state) == LOOP_DOWN)
 
-#define LOOP_RDY(ha)    (!LOOP_NOT_READY(ha))
-
 #define TGT_Q(ha, t) (ha->otgt[t])
 
 #define to_qla_host(x)          ((scsi_qla_host_t *) (x)->hostdata)
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 2d720121a0d3..c46d2469b85f 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1259,7 +1259,7 @@ qla2x00_configure_hba(scsi_qla_host_t *ha)
         rval = qla2x00_get_adapter_id(ha,
             &loop_id, &al_pa, &area, &domain, &topo);
         if (rval != QLA_SUCCESS) {
-                if (LOOP_NOT_READY(ha) || atomic_read(&ha->loop_down_timer) ||
+                if (LOOP_TRANSITION(ha) || atomic_read(&ha->loop_down_timer) ||
                     (rval == QLA_COMMAND_ERROR && loop_id == 0x7)) {
                         DEBUG2(printk("%s(%ld) Loop is in a transition state\n",
                             __func__, ha->host_no));
@@ -1796,7 +1796,7 @@ qla2x00_configure_loop(scsi_qla_host_t *ha)
         }
 
         if (rval == QLA_SUCCESS && test_bit(RSCN_UPDATE, &flags)) {
-                if (LOOP_NOT_READY(ha)) {
+                if (LOOP_TRANSITION(ha)) {
                         rval = QLA_FUNCTION_FAILED;
                 } else {
                         rval = qla2x00_configure_fabric(ha);
@@ -2369,7 +2369,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
                 if (qla2x00_is_reserved_id(ha, loop_id))
                         continue;
 
-                if (atomic_read(&ha->loop_down_timer) || LOOP_NOT_READY(ha))
+                if (atomic_read(&ha->loop_down_timer) || LOOP_TRANSITION(ha))
                         break;
 
                 if (swl != NULL) {
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 09afc0f06bd4..5181d966fecb 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -909,6 +909,21 @@ qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
                         resid = resid_len;
                         cp->resid = resid;
                         CMD_RESID_LEN(cp) = resid;
+
+                        if (!lscsi_status &&
+                            ((unsigned)(cp->request_bufflen - resid) <
+                             cp->underflow)) {
+                                qla_printk(KERN_INFO, ha,
+                                    "scsi(%ld:%d:%d:%d): Mid-layer underflow "
+                                    "detected (%x of %x bytes)...returning "
+                                    "error status.\n", ha->host_no,
+                                    cp->device->channel, cp->device->id,
+                                    cp->device->lun, resid,
+                                    cp->request_bufflen);
+
+                                cp->result = DID_ERROR << 16;
+                                break;
+                        }
                 }
                 cp->result = DID_OK << 16 | lscsi_status;
 
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 18c5d2523014..c0ae9e965f6f 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -422,10 +422,15 @@ static int scsi_eh_completed_normally(struct scsi_cmnd *scmd)
  **/
 static void scsi_eh_done(struct scsi_cmnd *scmd)
 {
+        struct completion     *eh_action;
+
         SCSI_LOG_ERROR_RECOVERY(3,
                 printk("%s scmd: %p result: %x\n",
                         __FUNCTION__, scmd, scmd->result));
-        complete(scmd->device->host->eh_action);
+
+        eh_action = scmd->device->host->eh_action;
+        if (eh_action)
+                complete(eh_action);
 }
 
 /**
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index ce9d73a292e2..dc249cb970ea 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1085,6 +1085,26 @@ static void scsi_generic_done(struct scsi_cmnd *cmd)
         scsi_io_completion(cmd, cmd->result == 0 ? cmd->bufflen : 0, 0);
 }
 
+void scsi_setup_blk_pc_cmnd(struct scsi_cmnd *cmd, int retries)
+{
+        struct request *req = cmd->request;
+
+        BUG_ON(sizeof(req->cmd) > sizeof(cmd->cmnd));
+        memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd));
+        cmd->cmd_len = req->cmd_len;
+        if (!req->data_len)
+                cmd->sc_data_direction = DMA_NONE;
+        else if (rq_data_dir(req) == WRITE)
+                cmd->sc_data_direction = DMA_TO_DEVICE;
+        else
+                cmd->sc_data_direction = DMA_FROM_DEVICE;
+        
+        cmd->transfersize = req->data_len;
+        cmd->allowed = retries;
+        cmd->timeout_per_command = req->timeout;
+}
+EXPORT_SYMBOL_GPL(scsi_setup_blk_pc_cmnd);
+
 static int scsi_prep_fn(struct request_queue *q, struct request *req)
 {
         struct scsi_device *sdev = q->queuedata;
@@ -1220,18 +1240,7 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
                                 goto kill;
                         }
                 } else {
-                        memcpy(cmd->cmnd, req->cmd, sizeof(cmd->cmnd));
-                        cmd->cmd_len = req->cmd_len;
-                        if (rq_data_dir(req) == WRITE)
-                                cmd->sc_data_direction = DMA_TO_DEVICE;
-                        else if (req->data_len)
-                                cmd->sc_data_direction = DMA_FROM_DEVICE;
-                        else
-                                cmd->sc_data_direction = DMA_NONE;
-                        
-                        cmd->transfersize = req->data_len;
-                        cmd->allowed = 3;
-                        cmd->timeout_per_command = req->timeout;
+                        scsi_setup_blk_pc_cmnd(cmd, 3);
                         cmd->done = scsi_generic_done;
                 }
         }
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 94e5167f260d..4e6709f448e1 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -400,6 +400,36 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
         return found_target;
 }
 
+struct work_queue_wrapper {
+        struct work_struct      work;
+        struct scsi_target      *starget;
+};
+
+static void scsi_target_reap_work(void *data) {
+        struct work_queue_wrapper *wqw = (struct work_queue_wrapper *)data;
+        struct scsi_target *starget = wqw->starget;
+        struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
+        unsigned long flags;
+
+        kfree(wqw);
+
+        spin_lock_irqsave(shost->host_lock, flags);
+
+        if (--starget->reap_ref == 0 && list_empty(&starget->devices)) {
+                list_del_init(&starget->siblings);
+                spin_unlock_irqrestore(shost->host_lock, flags);
+                transport_remove_device(&starget->dev);
+                device_del(&starget->dev);
+                transport_destroy_device(&starget->dev);
+                put_device(&starget->dev);
+                return;
+
+        }
+        spin_unlock_irqrestore(shost->host_lock, flags);
+
+        return;
+}
+
 /**
  * scsi_target_reap - check to see if target is in use and destroy if not
  *
@@ -411,19 +441,18 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
  */
 void scsi_target_reap(struct scsi_target *starget)
 {
-        struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
-        unsigned long flags;
-        spin_lock_irqsave(shost->host_lock, flags);
+        struct work_queue_wrapper *wqw = 
+                kzalloc(sizeof(struct work_queue_wrapper), GFP_ATOMIC);
 
-        if (--starget->reap_ref == 0 && list_empty(&starget->devices)) {
-                list_del_init(&starget->siblings);
-                spin_unlock_irqrestore(shost->host_lock, flags);
-                device_del(&starget->dev);
-                transport_unregister_device(&starget->dev);
-                put_device(&starget->dev);
+        if (!wqw) {
+                starget_printk(KERN_ERR, starget,
+                               "Failed to allocate memory in scsi_reap_target()\n");
                 return;
         }
-        spin_unlock_irqrestore(shost->host_lock, flags);
+
+        INIT_WORK(&wqw->work, scsi_target_reap_work, wqw);
+        wqw->starget = starget;
+        schedule_work(&wqw->work);
 }
 
 /**
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 6cd5931d9a54..2a1a99a2ef56 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -105,6 +105,7 @@ static struct {
         { FC_PORTSTATE_LINKDOWN,        "Linkdown" },
         { FC_PORTSTATE_ERROR,           "Error" },
         { FC_PORTSTATE_LOOPBACK,        "Loopback" },
+        { FC_PORTSTATE_DELETED,         "Deleted" },
 };
 fc_enum_name_search(port_state, fc_port_state, fc_port_state_names)
 #define FC_PORTSTATE_MAX_NAMELEN        20
@@ -211,6 +212,7 @@ fc_bitfield_name_search(remote_port_roles, fc_remote_port_role_names)
 #define FC_MGMTSRVR_PORTID              0x00000a
 
 
+static void fc_shost_remove_rports(void  *data);
 static void fc_timeout_deleted_rport(void *data);
 static void fc_scsi_scan_rport(void *data);
 static void fc_rport_terminate(struct fc_rport  *rport);
@@ -318,6 +320,8 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev,
         fc_host_next_rport_number(shost) = 0;
         fc_host_next_target_id(shost) = 0;
 
+        fc_host_flags(shost) = 0;
+        INIT_WORK(&fc_host_rport_del_work(shost), fc_shost_remove_rports, shost);
         return 0;
 }
 
@@ -387,6 +391,7 @@ show_fc_rport_##field (struct class_device *cdev, char *buf)		\
         struct fc_internal *i = to_fc_internal(shost->transportt);      \
         if ((i->f->get_rport_##field) &&                                \
             !((rport->port_state == FC_PORTSTATE_BLOCKED) ||            \
+              (rport->port_state == FC_PORTSTATE_DELETED) ||            \
               (rport->port_state == FC_PORTSTATE_NOTPRESENT)))          \
                 i->f->get_rport_##field(rport);                         \
         return snprintf(buf, sz, format_string, cast rport->field);     \
@@ -402,6 +407,7 @@ store_fc_rport_##field(struct class_device *cdev, const char *buf,	\
         struct Scsi_Host *shost = rport_to_shost(rport);                \
         struct fc_internal *i = to_fc_internal(shost->transportt);      \
         if ((rport->port_state == FC_PORTSTATE_BLOCKED) ||              \
+            (rport->port_state == FC_PORTSTATE_DELETED) ||              \
             (rport->port_state == FC_PORTSTATE_NOTPRESENT))             \
                 return -EBUSY;                                          \
         val = simple_strtoul(buf, NULL, 0);                             \
@@ -519,6 +525,7 @@ store_fc_rport_dev_loss_tmo(struct class_device *cdev, const char *buf,
         struct Scsi_Host *shost = rport_to_shost(rport);
         struct fc_internal *i = to_fc_internal(shost->transportt);
         if ((rport->port_state == FC_PORTSTATE_BLOCKED) ||
+            (rport->port_state == FC_PORTSTATE_DELETED) ||
             (rport->port_state == FC_PORTSTATE_NOTPRESENT))
                 return -EBUSY;
         val = simple_strtoul(buf, NULL, 0);
@@ -1769,7 +1776,7 @@ fc_timeout_deleted_rport(void  *data)
         rport->maxframe_size = -1;
         rport->supported_classes = FC_COS_UNSPECIFIED;
         rport->roles = FC_RPORT_ROLE_UNKNOWN;
-        rport->port_state = FC_PORTSTATE_NOTPRESENT;
+        rport->port_state = FC_PORTSTATE_DELETED;
 
         /* remove the identifiers that aren't used in the consisting binding */
         switch (fc_host_tgtid_bind_type(shost)) {
@@ -1789,14 +1796,23 @@ fc_timeout_deleted_rport(void  *data)
                 break;
         }
 
-        spin_unlock_irqrestore(shost->host_lock, flags);
-
         /*
          * As this only occurs if the remote port (scsi target)
          * went away and didn't come back - we'll remove
          * all attached scsi devices.
+         *
+         * We'll schedule the shost work item to perform the actual removal
+         * to avoid recursion in the different flush calls if we perform
+         * the removal in each target - and there are lots of targets
+         * whose timeouts fire at the same time.
          */
-        fc_rport_tgt_remove(rport);
+
+        if ( !(fc_host_flags(shost) & FC_SHOST_RPORT_DEL_SCHEDULED)) {
+                fc_host_flags(shost) |= FC_SHOST_RPORT_DEL_SCHEDULED;
+                scsi_queue_work(shost, &fc_host_rport_del_work(shost));
+        }
+
+        spin_unlock_irqrestore(shost->host_lock, flags);
 }
 
 /**
@@ -1818,6 +1834,41 @@ fc_scsi_scan_rport(void *data)
 }
 
 
+/**
+ * fc_shost_remove_rports - called to remove all rports that are marked
+ *                       as in a deleted (not connected) state.
+ * 
+ * @data:       shost whose rports are to be looked at
+ **/
+static void
+fc_shost_remove_rports(void  *data)
+{
+        struct Scsi_Host *shost = (struct Scsi_Host *)data;
+        struct fc_rport *rport, *next_rport;
+        unsigned long flags;
+
+        spin_lock_irqsave(shost->host_lock, flags);
+        while (fc_host_flags(shost) & FC_SHOST_RPORT_DEL_SCHEDULED) {
+
+                fc_host_flags(shost) &= ~FC_SHOST_RPORT_DEL_SCHEDULED;
+
+restart_search:
+                list_for_each_entry_safe(rport, next_rport,
+                                &fc_host_rport_bindings(shost), peers) {
+                        if (rport->port_state == FC_PORTSTATE_DELETED) {
+                                rport->port_state = FC_PORTSTATE_NOTPRESENT;
+                                spin_unlock_irqrestore(shost->host_lock, flags);
+                                fc_rport_tgt_remove(rport);
+                                spin_lock_irqsave(shost->host_lock, flags);
+                                goto restart_search;
+                        }
+                }
+
+        }
+        spin_unlock_irqrestore(shost->host_lock, flags);
+}
+
+
 MODULE_AUTHOR("Martin Hicks");
 MODULE_DESCRIPTION("FC Transport Attributes");
 MODULE_LICENSE("GPL");
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 49fd18c1a9c6..e08462d50c97 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -249,7 +249,7 @@ static inline struct list_head *skb_to_lh(struct sk_buff *skb)
 }
 
 static void*
-mempool_zone_alloc_skb(unsigned int gfp_mask, void *pool_data)
+mempool_zone_alloc_skb(gfp_t gfp_mask, void *pool_data)
 {
         struct mempool_zone *zone = pool_data;
 
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 8613a1317712..03fcbab30033 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -245,24 +245,10 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
          * SG_IO from block layer already setup, just copy cdb basically
          */
         if (blk_pc_request(rq)) {
-                if (sizeof(rq->cmd) > sizeof(SCpnt->cmnd))
-                        return 0;
-
-                memcpy(SCpnt->cmnd, rq->cmd, sizeof(SCpnt->cmnd));
-                SCpnt->cmd_len = rq->cmd_len;
-                if (rq_data_dir(rq) == WRITE)
-                        SCpnt->sc_data_direction = DMA_TO_DEVICE;
-                else if (rq->data_len)
-                        SCpnt->sc_data_direction = DMA_FROM_DEVICE;
-                else
-                        SCpnt->sc_data_direction = DMA_NONE;
-
-                this_count = rq->data_len;
+                scsi_setup_blk_pc_cmnd(SCpnt, SD_PASSTHROUGH_RETRIES);
                 if (rq->timeout)
                         timeout = rq->timeout;
 
-                SCpnt->transfersize = rq->data_len;
-                SCpnt->allowed = SD_PASSTHROUGH_RETRIES;
                 goto queue;
         }
 
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index d68cea753bb2..fb4012b5c188 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -320,25 +320,11 @@ static int sr_init_command(struct scsi_cmnd * SCpnt)
          * these are already setup, just copy cdb basically
          */
         if (SCpnt->request->flags & REQ_BLOCK_PC) {
-                struct request *rq = SCpnt->request;
+                scsi_setup_blk_pc_cmnd(SCpnt, MAX_RETRIES);
 
-                if (sizeof(rq->cmd) > sizeof(SCpnt->cmnd))
-                        return 0;
-
-                memcpy(SCpnt->cmnd, rq->cmd, sizeof(SCpnt->cmnd));
-                SCpnt->cmd_len = rq->cmd_len;
-                if (!rq->data_len)
-                        SCpnt->sc_data_direction = DMA_NONE;
-                else if (rq_data_dir(rq) == WRITE)
-                        SCpnt->sc_data_direction = DMA_TO_DEVICE;
-                else
-                        SCpnt->sc_data_direction = DMA_FROM_DEVICE;
-
-                this_count = rq->data_len;
-                if (rq->timeout)
-                        timeout = rq->timeout;
+                if (SCpnt->timeout_per_command)
+                        timeout = SCpnt->timeout_per_command;
 
-                SCpnt->transfersize = rq->data_len;
                 goto queue;
         }
 
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index 7ac6ea141fff..dd592f6a2529 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -4194,27 +4194,10 @@ static void st_intr(struct scsi_cmnd *SCpnt)
  */
 static int st_init_command(struct scsi_cmnd *SCpnt)
 {
-        struct request *rq;
-
         if (!(SCpnt->request->flags & REQ_BLOCK_PC))
                 return 0;
 
-        rq = SCpnt->request;
-        if (sizeof(rq->cmd) > sizeof(SCpnt->cmnd))
-                return 0;
-
-        memcpy(SCpnt->cmnd, rq->cmd, sizeof(SCpnt->cmnd));
-        SCpnt->cmd_len = rq->cmd_len;
-
-        if (rq_data_dir(rq) == WRITE)
-                SCpnt->sc_data_direction = DMA_TO_DEVICE;
-        else if (rq->data_len)
-                SCpnt->sc_data_direction = DMA_FROM_DEVICE;
-        else
-                SCpnt->sc_data_direction = DMA_NONE;
-
-        SCpnt->timeout_per_command = rq->timeout;
-        SCpnt->transfersize = rq->data_len;
+        scsi_setup_blk_pc_cmnd(SCpnt, 0);
         SCpnt->done = st_intr;
         return 1;
 }
diff --git a/drivers/scsi/sym53c8xx_2/sym_hipd.c b/drivers/scsi/sym53c8xx_2/sym_hipd.c
index a7420cad4547..1564ca203a3e 100644
--- a/drivers/scsi/sym53c8xx_2/sym_hipd.c
+++ b/drivers/scsi/sym53c8xx_2/sym_hipd.c
@@ -1405,7 +1405,6 @@ static void sym_check_goals(struct sym_hcb *np, struct scsi_target *starget,
                 goal->iu = 0;
                 goal->dt = 0;
                 goal->qas = 0;
-                goal->period = 0;
                 goal->offset = 0;
                 return;
         }
@@ -1465,7 +1464,8 @@ static int sym_prepare_nego(struct sym_hcb *np, struct sym_ccb *cp, u_char *msgp
          * Many devices implement PPR in a buggy way, so only use it if we
          * really want to.
          */
-        if (goal->iu || goal->dt || goal->qas || (goal->period < 0xa)) {
+        if (goal->offset &&
+            (goal->iu || goal->dt || goal->qas || (goal->period < 0xa))) {
                 nego = NS_PPR;
         } else if (spi_width(starget) != goal->width) {
                 nego = NS_WIDE;