diff options
| author | Kevin Barnett <kevin.barnett@microchip.com> | 2024-07-11 14:47:03 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2024-08-02 22:08:35 -0400 |
| commit | 57abab70a5e0179b5fff7c4a6dfdbcbcc97ca910 (patch) | |
| tree | 1b06f8d7813ed799efbe0f0b1de9bd6fc1720c77 | |
| parent | f1393d52e6cda9c20f12643cbecf1e1dc357e0e2 (diff) | |
scsi: smartpqi: Improve handling of multipath failover
Improve multipath failovers by mapping firmware errors into I/O errors.
In some rare instances, firmware does not return the proper error code for
I/O errors caused by a multipath path failure.
Map I/O errors returned by firmware into errors that help the multipath
layer to detect the failure of a path.
Reviewed-by: Gerry Morong <gerry.morong@microchip.com>
Reviewed-by: Scott Benesh <scott.benesh@microchip.com>
Reviewed-by: Scott Teel <scott.teel@microchip.com>
Reviewed-by: Mike McGowen <mike.mcgowen@microchip.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microchip.com>
Signed-off-by: Don Brace <don.brace@microchip.com>
Link: https://lore.kernel.org/r/20240711194704.982400-5-don.brace@microchip.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_init.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index d8df7440bbe1..c116d542ac2b 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -3247,6 +3247,20 @@ static void pqi_process_raid_io_error(struct pqi_io_request *io_request) sense_data_length); } + if (pqi_cmd_priv(scmd)->this_residual && + !pqi_is_logical_device(scmd->device->hostdata) && + scsi_status == SAM_STAT_CHECK_CONDITION && + host_byte == DID_OK && + sense_data_length && + scsi_normalize_sense(error_info->data, sense_data_length, &sshdr) && + sshdr.sense_key == ILLEGAL_REQUEST && + sshdr.asc == 0x26 && + sshdr.ascq == 0x0) { + host_byte = DID_NO_CONNECT; + pqi_take_device_offline(scmd->device, "AIO"); + scsi_build_sense_buffer(0, scmd->sense_buffer, HARDWARE_ERROR, 0x3e, 0x1); + } + scmd->result = scsi_status; set_host_byte(scmd, host_byte); } @@ -6021,7 +6035,7 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, struct scsi_cmnd *scm ctrl_info = shost_to_hba(shost); - if (pqi_ctrl_offline(ctrl_info) || pqi_device_in_remove(device)) { + if (pqi_ctrl_offline(ctrl_info) || pqi_device_offline(device) || pqi_device_in_remove(device)) { set_host_byte(scmd, DID_NO_CONNECT); pqi_scsi_done(scmd); return 0; |