scsi: hpsa: correct logical resets

- driver was not calling done in some cases which causes the volume to
  be offlined.
- avoid doing rescan during a reset.

Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 0d4f21c..5b1ba58 100644 (file)
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -276,6 +276,9 @@ static int hpsa_find_cfg_addrs(struct pci_dev *pdev, void __iomem *vaddr,
 static int hpsa_pci_find_memory_BAR(struct pci_dev *pdev,
                                    unsigned long *memory_bar);
 static int hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id);
+static int wait_for_device_to_become_ready(struct ctlr_info *h,
+                                          unsigned char lunaddr[],
+                                          int reply_queue);
 static int hpsa_wait_for_board_state(struct pci_dev *pdev, void __iomem *vaddr,
                                     int wait_for_ready);
 static inline void finish_cmd(struct CommandList *c);
@@ -2540,7 +2543,7 @@ static void complete_scsi_command(struct CommandList *cp)
 
        if ((unlikely(hpsa_is_pending_event(cp)))) {
                if (cp->reset_pending)
-                       return hpsa_cmd_resolve_and_free(h, cp);
+                       return hpsa_cmd_free_and_done(h, cp, cmd);
                if (cp->abort_pending)
                        return hpsa_cmd_abort_and_free(h, cp, cmd);
        }
@@ -3079,6 +3082,8 @@ static int hpsa_do_reset(struct ctlr_info *h, struct hpsa_scsi_dev_t *dev,
 
        if (unlikely(rc))
                atomic_set(&dev->reset_cmds_out, 0);
+       else
+               wait_for_device_to_become_ready(h, scsi3addr, 0);
 
        mutex_unlock(&h->reset_mutex);
        return rc;
@@ -5563,6 +5568,14 @@ static void hpsa_scan_start(struct Scsi_Host *sh)
        if (unlikely(lockup_detected(h)))
                return hpsa_scan_complete(h);
 
+       /*
+        * Do the scan after a reset completion
+        */
+       if (h->reset_in_progress) {
+               h->drv_req_rescan = 1;
+               return;
+       }
+
        hpsa_update_scsi_devices(h);
 
        hpsa_scan_complete(h);
@@ -8590,6 +8603,14 @@ static void hpsa_rescan_ctlr_worker(struct work_struct *work)
        if (h->remove_in_progress)
                return;
 
+       /*
+        * Do the scan after the reset
+        */
+       if (h->reset_in_progress) {
+               h->drv_req_rescan = 1;
+               return;
+       }
+
        if (hpsa_ctlr_needs_rescan(h) || hpsa_offline_devices_ready(h)) {
                scsi_host_get(h->scsi_host);
                hpsa_ack_ctlr_events(h);