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authorJames Smart <james.smart@emulex.com>2013-09-06 12:18:45 -0400
committerJames Bottomley <JBottomley@Parallels.com>2013-09-10 16:12:00 -0700
commit98bbf5f77f47d7de9839285af50daa4407f5db71 (patch)
tree61c110751d3e300642d9d936326d6e3f16224b31 /drivers/scsi/lpfc
parent716d3bc5030bf916b4eea15c7c00c95329f2cda4 (diff)
[SCSI] lpfc 8.3.42: Fix random errors using first burst
Signed-off-by: James Smart <james.smart@emulex.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/lpfc')
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 1242b6c4308..49916a952bf 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -4342,6 +4342,7 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
char tag[2];
uint8_t *ptr;
bool sli4;
+ uint32_t fcpdl;
if (!pnode || !NLP_CHK_NODE_ACT(pnode))
return;
@@ -4389,8 +4390,12 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
iocb_cmd->ulpPU = PARM_READ_CHECK;
if (vport->cfg_first_burst_size &&
(pnode->nlp_flag & NLP_FIRSTBURST)) {
- piocbq->iocb.un.fcpi.fcpi_XRdy =
- vport->cfg_first_burst_size;
+ fcpdl = scsi_bufflen(scsi_cmnd);
+ if (fcpdl < vport->cfg_first_burst_size)
+ piocbq->iocb.un.fcpi.fcpi_XRdy = fcpdl;
+ else
+ piocbq->iocb.un.fcpi.fcpi_XRdy =
+ vport->cfg_first_burst_size;
}
fcp_cmnd->fcpCntl3 = WRITE_DATA;
phba->fc4OutputRequests++;