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Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas_fusion.c')
-rw-r--r--drivers/scsi/megaraid/megaraid_sas_fusion.c10
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 edbecc5..4628671 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:
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