[smartpqi updates V3 PATCH 5/9] smartpqi: add SCSI cmd info for resets

[Don Brace]

From: Murthy Bhat <Murthy.Bhat@xxxxxxxxxxxxx>

Report on SCSI command that has triggered the reset.
 - Also add check for NULL SCSI commands resulting from
   issuing sg_reset when there is no outstanding commands.

   Example:
   sg_reset -d /dev/sgXY
   smartpqi 0000:39:00.0: resetting scsi 4:0:1:0 due to cmd 0x12

Reviewed-by: Kevin Barnett <kevin.barnett@xxxxxxxxxxxxx>
Reviewed-by: Mike McGowen <mike.mcgowen@xxxxxxxxxxxxx>
Reviewed-by: Scott Benesh <scott.benesh@xxxxxxxxxxxxx>
Reviewed-by: Scott Teel <scott.teel@xxxxxxxxxxxxx>
Signed-off-by: Murthy Bhat <Murthy.Bhat@xxxxxxxxxxxxx>
Signed-off-by: Don Brace <don.brace@xxxxxxxxxxxxx>
---
 drivers/scsi/smartpqi/smartpqi_init.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 29382b290243..ffc7ca221e27 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -6033,8 +6033,10 @@ static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
 	mutex_lock(&ctrl_info->lun_reset_mutex);
 
 	dev_err(&ctrl_info->pci_dev->dev,
-		"resetting scsi %d:%d:%d:%d\n",
-		shost->host_no, device->bus, device->target, device->lun);
+		"resetting scsi %d:%d:%d:%d due to cmd 0x%02x\n",
+		shost->host_no,
+		device->bus, device->target, device->lun,
+		scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff);
 
 	pqi_check_ctrl_health(ctrl_info);
 	if (pqi_ctrl_offline(ctrl_info))
-- 
2.28.0.rc1.9.ge7ae437ac1