Merge branch 'master' into for-next

Conflicts:
	MAINTAINERS
	arch/arm/mach-omap2/pm24xx.c
	drivers/scsi/bfa/bfa_fcpim.c

Needed to update to apply fixes for which the old branch was too
outdated.

3 files changed, 135 insertions, 9 deletions

diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index a7810a106b37..5708cb27d078 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -113,8 +113,7 @@ static int megaraid_mbox_fire_sync_cmd(adapter_t *);
 static void megaraid_mbox_display_scb(adapter_t *, scb_t *);
 static void megaraid_mbox_setup_device_map(adapter_t *);
 
-static int megaraid_queue_command(struct scsi_cmnd *,
-                void (*)(struct scsi_cmnd *));
+static int megaraid_queue_command(struct Scsi_Host *, struct scsi_cmnd *);
 static scb_t *megaraid_mbox_build_cmd(adapter_t *, struct scsi_cmnd *, int *);
 static void megaraid_mbox_runpendq(adapter_t *, scb_t *);
 static void megaraid_mbox_prepare_pthru(adapter_t *, scb_t *,
@@ -1484,7 +1483,7 @@ mbox_post_cmd(adapter_t *adapter, scb_t *scb)
  * Queue entry point for mailbox based controllers.
  */
 static int
-megaraid_queue_command(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *))
+megaraid_queue_command_lck(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *))
 {
         adapter_t       *adapter;
         scb_t           *scb;
@@ -1513,6 +1512,8 @@ megaraid_queue_command(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *))
         return if_busy;
 }
 
+static DEF_SCSI_QCMD(megaraid_queue_command)
+
 /**
  * megaraid_mbox_build_cmd - transform the mid-layer scsi commands
  * @adapter     : controller's soft state
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index d3c9cdee292b..7451bc096a01 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -10,7 +10,7 @@
  *         2 of the License, or (at your option) any later version.
  *
  * FILE         : megaraid_sas.c
- * Version     : v00.00.04.17.1-rc1
+ * Version     : v00.00.04.31-rc1
  *
  * Authors:
  *      (email-id : megaraidlinux@lsi.com)
@@ -56,6 +56,15 @@ module_param_named(poll_mode_io, poll_mode_io, int, 0);
 MODULE_PARM_DESC(poll_mode_io,
         "Complete cmds from IO path, (default=0)");
 
+/*
+ * Number of sectors per IO command
+ * Will be set in megasas_init_mfi if user does not provide
+ */
+static unsigned int max_sectors;
+module_param_named(max_sectors, max_sectors, int, 0);
+MODULE_PARM_DESC(max_sectors,
+        "Maximum number of sectors per IO command");
+
 MODULE_LICENSE("GPL");
 MODULE_VERSION(MEGASAS_VERSION);
 MODULE_AUTHOR("megaraidlinux@lsi.com");
@@ -103,6 +112,7 @@ static int megasas_poll_wait_aen;
 static DECLARE_WAIT_QUEUE_HEAD(megasas_poll_wait);
 static u32 support_poll_for_event;
 static u32 megasas_dbg_lvl;
+static u32 support_device_change;
 
 /* define lock for aen poll */
 spinlock_t poll_aen_lock;
@@ -718,6 +728,10 @@ static int
 megasas_check_reset_gen2(struct megasas_instance *instance,
                 struct megasas_register_set __iomem *regs)
 {
+        if (instance->adprecovery != MEGASAS_HBA_OPERATIONAL) {
+                return 1;
+        }
+
         return 0;
 }
 
@@ -930,6 +944,7 @@ megasas_make_sgl_skinny(struct megasas_instance *instance,
                         mfi_sgl->sge_skinny[i].length = sg_dma_len(os_sgl);
                         mfi_sgl->sge_skinny[i].phys_addr =
                                                 sg_dma_address(os_sgl);
+                        mfi_sgl->sge_skinny[i].flag = 0;
                 }
         }
         return sge_count;
@@ -1319,7 +1334,7 @@ megasas_dump_pending_frames(struct megasas_instance *instance)
  * @done:                       Callback entry point
  */
 static int
-megasas_queue_command(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *))
+megasas_queue_command_lck(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *))
 {
         u32 frame_count;
         struct megasas_cmd *cmd;
@@ -1402,6 +1417,8 @@ megasas_queue_command(struct scsi_cmnd *scmd, void (*done) (struct scsi_cmnd *))
         return 0;
 }
 
+static DEF_SCSI_QCMD(megasas_queue_command)
+
 static struct megasas_instance *megasas_lookup_instance(u16 host_no)
 {
         int i;
@@ -1557,6 +1574,28 @@ static void megasas_complete_cmd_dpc(unsigned long instance_addr)
         }
 }
 
+static void
+megasas_internal_reset_defer_cmds(struct megasas_instance *instance);
+
+static void
+process_fw_state_change_wq(struct work_struct *work);
+
+void megasas_do_ocr(struct megasas_instance *instance)
+{
+        if ((instance->pdev->device == PCI_DEVICE_ID_LSI_SAS1064R) ||
+        (instance->pdev->device == PCI_DEVICE_ID_DELL_PERC5) ||
+        (instance->pdev->device == PCI_DEVICE_ID_LSI_VERDE_ZCR)) {
+                *instance->consumer     = MEGASAS_ADPRESET_INPROG_SIGN;
+        }
+        instance->instancet->disable_intr(instance->reg_set);
+        instance->adprecovery   = MEGASAS_ADPRESET_SM_INFAULT;
+        instance->issuepend_done = 0;
+
+        atomic_set(&instance->fw_outstanding, 0);
+        megasas_internal_reset_defer_cmds(instance);
+        process_fw_state_change_wq(&instance->work_init);
+}
+
 /**
  * megasas_wait_for_outstanding -       Wait for all outstanding cmds
  * @instance:                           Adapter soft state
@@ -1574,6 +1613,8 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance)
         unsigned long flags;
         struct list_head clist_local;
         struct megasas_cmd *reset_cmd;
+        u32 fw_state;
+        u8 kill_adapter_flag;
 
         spin_lock_irqsave(&instance->hba_lock, flags);
         adprecovery = instance->adprecovery;
@@ -1659,7 +1700,45 @@ static int megasas_wait_for_outstanding(struct megasas_instance *instance)
                 msleep(1000);
         }
 
-        if (atomic_read(&instance->fw_outstanding)) {
+        i = 0;
+        kill_adapter_flag = 0;
+        do {
+                fw_state = instance->instancet->read_fw_status_reg(
+                                        instance->reg_set) & MFI_STATE_MASK;
+                if ((fw_state == MFI_STATE_FAULT) &&
+                        (instance->disableOnlineCtrlReset == 0)) {
+                        if (i == 3) {
+                                kill_adapter_flag = 2;
+                                break;
+                        }
+                        megasas_do_ocr(instance);
+                        kill_adapter_flag = 1;
+
+                        /* wait for 1 secs to let FW finish the pending cmds */
+                        msleep(1000);
+                }
+                i++;
+        } while (i <= 3);
+
+        if (atomic_read(&instance->fw_outstanding) &&
+                                        !kill_adapter_flag) {
+                if (instance->disableOnlineCtrlReset == 0) {
+
+                        megasas_do_ocr(instance);
+
+                        /* wait for 5 secs to let FW finish the pending cmds */
+                        for (i = 0; i < wait_time; i++) {
+                                int outstanding =
+                                        atomic_read(&instance->fw_outstanding);
+                                if (!outstanding)
+                                        return SUCCESS;
+                                msleep(1000);
+                        }
+                }
+        }
+
+        if (atomic_read(&instance->fw_outstanding) ||
+                                        (kill_adapter_flag == 2)) {
                 printk(KERN_NOTICE "megaraid_sas: pending cmds after reset\n");
                 /*
                 * Send signal to FW to stop processing any pending cmds.
@@ -2669,6 +2748,7 @@ static int megasas_create_frame_pool(struct megasas_instance *instance)
                         return -ENOMEM;
                 }
 
+                memset(cmd->frame, 0, total_sz);
                 cmd->frame->io.context = cmd->index;
                 cmd->frame->io.pad_0 = 0;
         }
@@ -3585,6 +3665,27 @@ static int megasas_io_attach(struct megasas_instance *instance)
                         instance->max_fw_cmds - MEGASAS_INT_CMDS;
         host->this_id = instance->init_id;
         host->sg_tablesize = instance->max_num_sge;
+        /*
+         * Check if the module parameter value for max_sectors can be used
+         */
+        if (max_sectors && max_sectors < instance->max_sectors_per_req)
+                instance->max_sectors_per_req = max_sectors;
+        else {
+                if (max_sectors) {
+                        if (((instance->pdev->device ==
+                                PCI_DEVICE_ID_LSI_SAS1078GEN2) ||
+                                (instance->pdev->device ==
+                                PCI_DEVICE_ID_LSI_SAS0079GEN2)) &&
+                                (max_sectors <= MEGASAS_MAX_SECTORS)) {
+                                instance->max_sectors_per_req = max_sectors;
+                        } else {
+                        printk(KERN_INFO "megasas: max_sectors should be > 0"
+                                "and <= %d (or < 1MB for GEN2 controller)\n",
+                                instance->max_sectors_per_req);
+                        }
+                }
+        }
+
         host->max_sectors = instance->max_sectors_per_req;
         host->cmd_per_lun = 128;
         host->max_channel = MEGASAS_MAX_CHANNELS - 1;
@@ -4658,6 +4759,15 @@ megasas_sysfs_show_support_poll_for_event(struct device_driver *dd, char *buf)
 static DRIVER_ATTR(support_poll_for_event, S_IRUGO,
                         megasas_sysfs_show_support_poll_for_event, NULL);
 
+ static ssize_t
+megasas_sysfs_show_support_device_change(struct device_driver *dd, char *buf)
+{
+        return sprintf(buf, "%u\n", support_device_change);
+}
+
+static DRIVER_ATTR(support_device_change, S_IRUGO,
+                        megasas_sysfs_show_support_device_change, NULL);
+
 static ssize_t
 megasas_sysfs_show_dbg_lvl(struct device_driver *dd, char *buf)
 {
@@ -4978,6 +5088,7 @@ static int __init megasas_init(void)
                MEGASAS_EXT_VERSION);
 
         support_poll_for_event = 2;
+        support_device_change = 1;
 
         memset(&megasas_mgmt_info, 0, sizeof(megasas_mgmt_info));
 
@@ -5026,8 +5137,17 @@ static int __init megasas_init(void)
         if (rval)
                 goto err_dcf_poll_mode_io;
 
+        rval = driver_create_file(&megasas_pci_driver.driver,
+                                &driver_attr_support_device_change);
+        if (rval)
+                goto err_dcf_support_device_change;
+
         return rval;
 
+err_dcf_support_device_change:
+        driver_remove_file(&megasas_pci_driver.driver,
+                  &driver_attr_poll_mode_io);
+
 err_dcf_poll_mode_io:
         driver_remove_file(&megasas_pci_driver.driver,
                            &driver_attr_dbg_lvl);
@@ -5058,6 +5178,10 @@ static void __exit megasas_exit(void)
         driver_remove_file(&megasas_pci_driver.driver,
                            &driver_attr_dbg_lvl);
         driver_remove_file(&megasas_pci_driver.driver,
+                        &driver_attr_support_poll_for_event);
+        driver_remove_file(&megasas_pci_driver.driver,
+                        &driver_attr_support_device_change);
+        driver_remove_file(&megasas_pci_driver.driver,
                            &driver_attr_release_date);
         driver_remove_file(&megasas_pci_driver.driver, &driver_attr_version);
 
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 16a4f68a34b0..ad16f5e60046 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -18,9 +18,9 @@
 /*
  * MegaRAID SAS Driver meta data
  */
-#define MEGASAS_VERSION                 "00.00.04.17.1-rc1"
-#define MEGASAS_RELDATE                 "Oct. 29, 2009"
-#define MEGASAS_EXT_VERSION             "Thu. Oct. 29, 11:41:51 PST 2009"
+#define MEGASAS_VERSION                 "00.00.04.31-rc1"
+#define MEGASAS_RELDATE                 "May 3, 2010"
+#define MEGASAS_EXT_VERSION             "Mon. May 3, 11:41:51 PST 2010"
 
 /*
  * Device IDs
@@ -706,6 +706,7 @@ struct megasas_ctrl_info {
 #define MEGASAS_MAX_LD_IDS                      (MEGASAS_MAX_LD_CHANNELS * \
                                                 MEGASAS_MAX_DEV_PER_CHANNEL)
 
+#define MEGASAS_MAX_SECTORS                    (2*1024)
 #define MEGASAS_DBG_LVL                         1
 
 #define MEGASAS_FW_BUSY                         1