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

Don Brace
2021-07-14T18:29:05Z

From: Murthy Bhat <Murthy.Bhat@microchip.com>

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@microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Signed-off-by: Murthy Bhat <Murthy.Bhat@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
---
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