diff options
| author | Shivasharan S <shivasharan.srikanteshwara@broadcom.com> | 2017-02-10 00:59:14 -0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-02-13 07:26:22 -0500 |
| commit | 31d9a57b419d8ef8fa391009819f940778ce6245 (patch) | |
| tree | 6f39e72eec51f5fe187047d3de9233f49d2f61d8 | |
| parent | a48ba0eca0456d45e920169930569caa3fc57124 (diff) | |
scsi: megaraid_sas: set residual bytes count during IO completion
Fixing issue of not setting residual bytes correctly.
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas_fusion.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c index edbecc531f33..46286719c0aa 100644 --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c @@ -1445,6 +1445,7 @@ map_cmd_status(struct fusion_context *fusion, struct scsi_cmnd *scmd, u8 status, u8 ext_status, u32 data_length, u8 *sense) { + int resid; switch (status) { @@ -1467,6 +1468,15 @@ map_cmd_status(struct fusion_context *fusion, SCSI_SENSE_BUFFERSIZE); scmd->result |= DRIVER_SENSE << 24; } + + /* + * If the IO request is partially completed, then MR FW will + * update "io_request->DataLength" field with actual number of + * bytes transferred.Driver will set residual bytes count in + * SCSI command structure. + */ + resid = (scsi_bufflen(scmd) - data_length); + scsi_set_resid(scmd, resid); break; case MFI_STAT_LD_OFFLINE: |