scsi: hisi_sas: change the time of SAS SSP connection

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>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 04ad7d0442ebb68226c09bd30e6d49d79d48fb1d..7e2b020c0c69a5f4f0b085865888f16b1e1c3efe 100644 (file)
--- 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);