Commit b18797bd authored by Xingui Yang's avatar Xingui Yang Committed by xia-bing1
Browse files

scsi: hisi_sas: Update v3 hw STP_LINK_TIMER setting 

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IB5FF2


CVE: NA

---------------------------------------------------------------------

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.

Fixes: 81036731 ("scsi: hisi_sas: Modify v3 hw STP_LINK_TIMER setting")
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 avatarBing Xia <xiabing12@h-partners.com>
parent 197d8469

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

+1 −1
Original line number Diff line number Diff line
@@ -686,7 +686,7 @@ 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);