[SCSI] mptfusion - fc transport attributes

Signed-off-by: Michael Reed <mdr@sgi.com>
Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 24 insertions, 4 deletions

diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 525d9aea2012..cdac5578fdf2 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -893,6 +893,7 @@ mptscsih_flush_running_cmds(MPT_SCSI_HOST *hd)
  *              when a lun is disable by mid-layer.
  *              Do NOT access the referenced scsi_cmnd structure or
  *              members. Will cause either a paging or NULL ptr error.
+ *              (BUT, BUT, BUT, the code does reference it! - mdr)
  *      @hd: Pointer to a SCSI HOST structure
  *      @vdevice: per device private data
  *
@@ -2557,13 +2558,25 @@ mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
                         hd->cmdPtr = NULL;
                 }
 
-                /* 7. Set flag to force DV and re-read IOC Page 3
+                /* 7. SPI: Set flag to force DV and re-read IOC Page 3
                  */
                 if (ioc->bus_type == SPI) {
                         ioc->spi_data.forceDv = MPT_SCSICFG_NEED_DV | MPT_SCSICFG_RELOAD_IOC_PG3;
                         ddvtprintk(("Set reload IOC Pg3 Flag\n"));
                 }
 
+                /* 7. FC: Rescan for blocked rports which might have returned.
+                 */
+                else if (ioc->bus_type == FC) {
+                        int work_count;
+                        unsigned long flags;
+
+                        spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
+                        work_count = ++ioc->fc_rescan_work_count;
+                        spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
+                        if (work_count == 1)
+                                schedule_work(&ioc->fc_rescan_work);
+                }
                 dtmprintk((MYIOC_s_WARN_FMT "Post-Reset complete.\n", ioc->name));
 
         }
@@ -2587,6 +2600,8 @@ mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
 {
         MPT_SCSI_HOST *hd;
         u8 event = le32_to_cpu(pEvReply->Event) & 0xFF;
+        int work_count;
+        unsigned long flags;
 
         devtprintk((MYIOC_s_INFO_FMT "MPT event (=%02Xh) routed to SCSI host driver!\n",
                         ioc->name, event));
@@ -2608,11 +2623,18 @@ mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply)
                 /* FIXME! */
                 break;
 
+        case MPI_EVENT_RESCAN:                          /* 06 */
+                spin_lock_irqsave(&ioc->fc_rescan_work_lock, flags);
+                work_count = ++ioc->fc_rescan_work_count;
+                spin_unlock_irqrestore(&ioc->fc_rescan_work_lock, flags);
+                if (work_count == 1)
+                        schedule_work(&ioc->fc_rescan_work);
+                break;
+
                 /*
                  *  CHECKME! Don't think we need to do
                  *  anything for these, but...
                  */
-        case MPI_EVENT_RESCAN:                          /* 06 */
         case MPI_EVENT_LINK_STATUS_CHANGE:              /* 07 */
         case MPI_EVENT_LOOP_STATE_CHANGE:               /* 08 */
                 /*
@@ -3952,8 +3974,6 @@ mptscsih_synchronize_cache(MPT_SCSI_HOST *hd, VirtDevice *vdevice)
 
 /* Search IOC page 3 to determine if this is hidden physical disk
  */
-/* Search IOC page 3 to determine if this is hidden physical disk
- */
 static int
 mptscsih_is_phys_disk(MPT_ADAPTER *ioc, int id)
 {