From: John Garry <john.garry@huawei.com>
To: <jejb@linux.vnet.ibm.com>, <martin.petersen@oracle.com>
Cc: <linuxarm@huawei.com>, <linux-kernel@vger.kernel.org>,
<linux-scsi@vger.kernel.org>,
Xiang Chen <chenxiang66@hisilicon.com>,
"John Garry" <john.garry@huawei.com>
Subject: [PATCH 3/6] scsi: hisi_sas: change queue depth from 512 to 4096
Date: Wed, 6 Feb 2019 18:52:53 +0800 [thread overview]
Message-ID: <1549450376-114929-4-git-send-email-john.garry@huawei.com> (raw)
In-Reply-To: <1549450376-114929-1-git-send-email-john.garry@huawei.com>
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(-)
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
--
2.17.1
next prev parent reply other threads:[~2019-02-06 10:52 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-06 10:52 [PATCH 0/6] hisi_sas: DIX support, performance optimisation, and misc patches John Garry
2019-02-06 10:52 ` [PATCH 1/6] scsi: hisi_sas: Add support for DIX feature for v3 hw John Garry
2019-02-08 23:13 ` Martin K. Petersen
2019-02-11 11:36 ` chenxiang (M)
2019-02-13 3:01 ` Martin K. Petersen
2019-02-06 10:52 ` [PATCH 2/6] scsi: hisi_sas: Add manual trigger for debugfs dump John Garry
2019-02-06 10:52 ` John Garry [this message]
2019-02-06 10:52 ` [PATCH 4/6] scsi: hisi_sas: Issue internal abort on all relevant queues John Garry
2019-02-06 10:52 ` [PATCH 5/6] scsi: hisi_sas: Use pci_irq_get_affinity() for v3 hw as experimental John Garry
2019-02-06 10:52 ` [PATCH 6/6] scsi: hisi_sas: Do some more tidy-up John Garry
2019-02-08 23:08 ` [PATCH 0/6] hisi_sas: DIX support, performance optimisation, and misc patches Martin K. Petersen
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