From: John Garry <john.garry@huawei.com>
To: <jejb@linux.vnet.ibm.com>, <martin.petersen@oracle.com>
Cc: <linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linuxarm@huawei.com>, Xiang Chen <chenxiang66@hisilicon.com>,
John Garry <john.garry@huawei.com>
Subject: [PATCH 5/5] scsi: hisi_sas: change the time of SAS SSP connection
Date: Fri, 9 Nov 2018 22:06:36 +0800 [thread overview]
Message-ID: <1541772396-161814-6-git-send-email-john.garry@huawei.com> (raw)
In-Reply-To: <1541772396-161814-1-git-send-email-john.garry@huawei.com>
From: Xiang Chen <chenxiang66@hisilicon.com>
Currently the time of SAS SSP connection is 1ms, which means the link
connection will fail if no IO response after this period.
For some disks handling large IO (such as 512k), 1ms is not enough, so
change it to 5ms.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 0c3fa43..a677296 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -500,7 +500,7 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba)
hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_OOB_RESTART_MSK, 0x1);
hisi_sas_phy_write32(hisi_hba, i, STP_LINK_TIMER, 0x7f7a120);
hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x2a0a01);
-
+ hisi_sas_phy_write32(hisi_hba, i, SAS_SSP_CON_TIMER_CFG, 0x32);
/* used for 12G negotiate */
hisi_sas_phy_write32(hisi_hba, i, COARSETUNE_TIME, 0x1e);
hisi_sas_phy_write32(hisi_hba, i, AIP_LIMIT, 0x2ffff);
--
1.9.1
next prev parent reply other threads:[~2018-11-09 14:05 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-09 14:06 [PATCH 0/5] hisi_sas: Interrupt aggregation support John Garry
2018-11-09 14:06 ` [PATCH 1/5] scsi: hisi_sas: Create separate host attributes per HBA John Garry
2018-11-09 14:06 ` [PATCH 2/5] scsi: hisi_sas: Add support for interrupt converge for v3 hw John Garry
2018-11-09 14:06 ` [PATCH 3/5] scsi: hisi_sas: Add support for interrupt coalescing " John Garry
2018-11-09 14:06 ` [PATCH 4/5] scsi: hisi_sas: Relocate some codes to avoid an unused check John Garry
2018-11-09 14:06 ` John Garry [this message]
2018-11-15 19:40 ` [PATCH 0/5] hisi_sas: Interrupt aggregation support Martin K. Petersen
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