On 8/27/19 11:28 PM, James Smart wrote:
Raise the config max for lpfc_fcp_mq_threshold variable to 256.
Signed-off-by: Dick Kennedy <dick.kennedy@xxxxxxxxxxxx>
Signed-off-by: James Smart <jsmart2021@xxxxxxxxx>
CC: Hannes Reinecke <hare@xxxxxxx>
---
Martin, this fix applies 5.3/scsi-fixes patch:
scsi: lpfc: Mitigate high memory pre-allocation by SCSI-MQ
---
drivers/scsi/lpfc/lpfc_attr.c | 2 +-
drivers/scsi/lpfc/lpfc_sli4.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 491a999056aa..25aa7a53d255 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -5713,7 +5713,7 @@ LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2,
* 0 = Set nr_hw_queues by the number of CPUs or HW queues.
* 1,128 = Manually specify the maximum nr_hw_queue value to be set,
*
- * Value range is [0,128]. Default value is 8.
+ * Value range is [0,256]. Default value is 8.
*/
LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF,
LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX,
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 2d1823e449aa..a4be83d1f37e 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -46,7 +46,7 @@
/* FCP MQ queue count limiting */
#define LPFC_FCP_MQ_THRESHOLD_MIN 0
-#define LPFC_FCP_MQ_THRESHOLD_MAX 128
+#define LPFC_FCP_MQ_THRESHOLD_MAX 256
#define LPFC_FCP_MQ_THRESHOLD_DEF 8
/* Common buffer size to accomidate SCSI and NVME IO buffers */
Reviewed-by: Hannes Reinecke <hare@xxxxxxxx>
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare@xxxxxxx +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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