From: Mike Christie <michaelc@xxxxxxxxxxx>
Instead of blocking the entire host when the port's
queueing limit is hit, we should only block the port's
target. This will allow IO to other ports to execute.
Signed-off-by: Mike Christie <michaelc@xxxxxxxxxxx>
---
drivers/scsi/lpfc/lpfc_scsi.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index af5aaaa..63a81a4 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -3008,7 +3008,7 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
goto out_fail_command;
}
if (atomic_read(&ndlp->cmd_pending) >= ndlp->cmd_qdepth)
- goto out_host_busy;
+ goto out_tgt_busy;
lpfc_cmd = lpfc_get_scsi_buf(phba, ndlp);
if (lpfc_cmd == NULL) {
@@ -3125,6 +3125,9 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
out_host_busy:
return SCSI_MLQUEUE_HOST_BUSY;
+ out_tgt_busy:
+ return SCSI_MLQUEUE_TARGET_BUSY;
+
out_fail_command:
done(cmnd);
return 0;
--
1.7.2.3
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