Commit c638d594 authored by Xingui Yang's avatar Xingui Yang Committed by Slim6882
Browse files

[Backport]scsi: hisi_sas: Update v3 hw STP_LINK_TIMER setting 

mainline inclusion
from mainline-v6.12-rc1
commit 90f17e3431d9c643558c3c343407ee37783d5e43
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IBCN9K
CVE: NA
Reference: https://lore.kernel.org/r/20241008021822.2617339-12-liyihang9@huawei.com



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At present, it is found that some SATA HDD disks may continue to return
the HOLD primitive for more than 500ms when they are busy writing data,
which is more likely to trigger an STP link timeout exception. Now
Modify STP link timer from 500ms to the maximum value of 1.048575s.

Signed-off-by: default avatarXingui Yang <yangxingui@huawei.com>
Link: https://lore.kernel.org/r/20241008021822.2617339-12-liyihang9@huawei.com


Reviewed-by: default avatarYihang Li <liyihang9@huawei.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarSlim6882 <yangjunshuo@huawei.com>
parent b7d0b6d8

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

+1 −1
Original line number Diff line number Diff line
@@ -676,7 +676,7 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba) 
		hisi_sas_phy_write32(hisi_hba, i, PHY_CTRL_RDY_MSK, 0x0);

		hisi_sas_phy_write32(hisi_hba, i, PHYCTRL_DWS_RESET_MSK, 0x0);

		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, STP_LINK_TIMER, 0x7ffffff);

		hisi_sas_phy_write32(hisi_hba, i, CON_CFG_DRIVER, 0x2a0a01);

		hisi_sas_phy_write32(hisi_hba, i, SAS_EC_INT_COAL_TIME,

				     0x30f4240);