[PATCH 4.9 077/104] scsi: mpt3sas: Fix IO error occurs on pulling out a drive from RAID1 volume created on two SATA drive

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

--

From: Sreekanth Reddy 


[ Upstream commit 2ce9a3645299ba1752873d333d73f67620f4550b ]

Whenever an I/O for a RAID volume fails with IOCStatus
MPI2_IOCSTATUS_SCSI_IOC_TERMINATED and SCSIStatus equal to
(MPI2_SCSI_STATE_TERMINATED | MPI2_SCSI_STATE_NO_SCSI_STATUS) then
return the I/O to SCSI midlayer with "DID_RESET" (i.e. retry the IO
infinite times) set in the host byte.

Previously, the driver was completing the I/O with "DID_SOFT_ERROR"
which causes the I/O to be quickly retried. However, firmware needed
more time and hence I/Os were failing.

Signed-off-by: Sreekanth Reddy 
Reviewed-by: Tomas Henzl 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman 
---
 drivers/scsi/mpt3sas/mpt3sas_scsih.c |5 +
 1 file changed, 5 insertions(+)

--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -4770,6 +4770,11 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *i
} else if (log_info == VIRTUAL_IO_FAILED_RETRY) {
scmd->result = DID_RESET << 16;
break;
+   } else if ((scmd->device->channel == RAID_CHANNEL) &&
+  (scsi_state == (MPI2_SCSI_STATE_TERMINATED |
+  MPI2_SCSI_STATE_NO_SCSI_STATUS))) {
+   scmd->result = DID_RESET << 16;
+   break;
}
scmd->result = DID_SOFT_ERROR << 16;
break;

[PATCH 4.9 077/104] scsi: mpt3sas: Fix IO error occurs on pulling out a drive from RAID1 volume created on two SATA drive

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

--

From: Sreekanth Reddy 


[ Upstream commit 2ce9a3645299ba1752873d333d73f67620f4550b ]

Whenever an I/O for a RAID volume fails with IOCStatus
MPI2_IOCSTATUS_SCSI_IOC_TERMINATED and SCSIStatus equal to
(MPI2_SCSI_STATE_TERMINATED | MPI2_SCSI_STATE_NO_SCSI_STATUS) then
return the I/O to SCSI midlayer with "DID_RESET" (i.e. retry the IO
infinite times) set in the host byte.

Previously, the driver was completing the I/O with "DID_SOFT_ERROR"
which causes the I/O to be quickly retried. However, firmware needed
more time and hence I/Os were failing.

Signed-off-by: Sreekanth Reddy 
Reviewed-by: Tomas Henzl 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman 
---
 drivers/scsi/mpt3sas/mpt3sas_scsih.c |5 +
 1 file changed, 5 insertions(+)

--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -4770,6 +4770,11 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *i
} else if (log_info == VIRTUAL_IO_FAILED_RETRY) {
scmd->result = DID_RESET << 16;
break;
+   } else if ((scmd->device->channel == RAID_CHANNEL) &&
+  (scsi_state == (MPI2_SCSI_STATE_TERMINATED |
+  MPI2_SCSI_STATE_NO_SCSI_STATUS))) {
+   scmd->result = DID_RESET << 16;
+   break;
}
scmd->result = DID_SOFT_ERROR << 16;
break;