diff mbox series

[3/6] scsi: hisi_sas: change queue depth from 512 to 4096

Message ID 1549450376-114929-4-git-send-email-john.garry@huawei.com
State New
Headers show
Series hisi_sas: DIX support, performance optimisation, and misc patches | expand

Commit Message

John Garry Feb. 6, 2019, 10:52 a.m. UTC 
From: Xiang Chen <chenxiang66@hisilicon.com>


If sending IOs to many disks from single queue, it is possible that the
queue may be full. To avoid the situation, change queue depth from 512
to 4096 which is the max number of IOs for v3 hw.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>

Signed-off-by: John Garry <john.garry@huawei.com>

---
 drivers/scsi/hisi_sas/hisi_sas.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.17.1
diff mbox series

Patch

diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index df2a92a0e7a1..ff844d4ba0d3 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -30,7 +30,7 @@ 
 
 #define HISI_SAS_MAX_PHYS	9
 #define HISI_SAS_MAX_QUEUES	32
-#define HISI_SAS_QUEUE_SLOTS 512
+#define HISI_SAS_QUEUE_SLOTS	4096
 #define HISI_SAS_MAX_ITCT_ENTRIES 1024
 #define HISI_SAS_MAX_DEVICES HISI_SAS_MAX_ITCT_ENTRIES
 #define HISI_SAS_RESET_BIT	0