Fix ramdom errors using first burst
Signed-off-by: James Smart <james.smart@xxxxxxxxxx>
---
lpfc_scsi.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff -upNr a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
--- a/drivers/scsi/lpfc/lpfc_scsi.c 2013-09-04 13:18:04.000000000 -0400
+++ b/drivers/scsi/lpfc/lpfc_scsi.c 2013-09-06 10:04:03.734058299 -0400
@@ -4342,6 +4342,7 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *v
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 *v
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++;
--
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