scsi: smartpqi: Update logical volume size after expansion

Have OS rescan after logical volume expansion to reflect new size.

Link: https://lore.kernel.org/r/159622928727.30579.298277463169866711.stgit@brunhilda
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Mahesh Rajashekhara <mahesh.rajashekhara@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/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h
index 48ca2ee..c2382ee 100644 (file)
--- a/drivers/scsi/smartpqi/smartpqi.h
+++ b/drivers/scsi/smartpqi/smartpqi.h
@@ -927,6 +927,7 @@ struct pqi_scsi_dev {
        u8      new_device : 1;
        u8      keep_device : 1;
        u8      volume_offline : 1;
+       u8      rescan : 1;
        bool    aio_enabled;            /* only valid for physical disks */
        bool    in_reset;
        bool    in_remove;

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 659b937..8f37b98 100644 (file)
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -1688,6 +1688,11 @@ static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device,
                existing_device->target_lun_valid = true;
        }
 
+       if ((existing_device->volume_status == CISS_LV_QUEUED_FOR_EXPANSION ||
+               existing_device->volume_status == CISS_LV_UNDERGOING_EXPANSION) &&
+               new_device->volume_status == CISS_LV_OK)
+               existing_device->rescan = true;
+
        /* By definition, the scsi3addr and wwid fields are already the same. */
 
        existing_device->is_physical_device = new_device->is_physical_device;
@@ -1872,11 +1877,17 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
         */
        list_for_each_entry(device, &ctrl_info->scsi_device_list,
                scsi_device_list_entry) {
-               if (device->sdev && device->queue_depth !=
-                       device->advertised_queue_depth) {
-                       device->advertised_queue_depth = device->queue_depth;
-                       scsi_change_queue_depth(device->sdev,
-                               device->advertised_queue_depth);
+               if (device->sdev) {
+                       if (device->queue_depth !=
+                               device->advertised_queue_depth) {
+                               device->advertised_queue_depth = device->queue_depth;
+                               scsi_change_queue_depth(device->sdev,
+                                       device->advertised_queue_depth);
+                       }
+                       if (device->rescan) {
+                               scsi_rescan_device(&device->sdev->sdev_gendev);
+                               device->rescan = false;
+                       }
                }
        }