scsi: hisi_sas: Change DMA setup lock timeout to 2.5s

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5BXH1
CVE: NA

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DMA setup lock timeout protection is added when DMA setup frames are
received, it's a function outside the protocol and used to prevent SATA
disk I/Os from being delivered for a long time. The default value is 100ms
, it's too strict and easily triggered timeout when the disk is overloaded
or faulty. Based on the average I/O latency of 300 disks, we adjust the
value to 2.5s.
Signed-off-by: NXingui Yang <yangxingui@huawei.com>
Reviewed-by: Nkang fenglong <kangfenglong@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NLaibin Qiu <qiulaibin@huawei.com>

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

@@ -35,6 +35,7 @@
 #define SATA_INITI_D2H_STORE_ADDR_HI	0x64
 #define CFG_MAX_TAG			0x68
 #define SAS_DMAC_OUTSTAND	0x6c
+#define TRANS_LOCK_ICT_TIME		0X70
 #define HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL	0x84
 #define HGC_SAS_TXFAIL_RETRY_CTRL	0x88
 #define HGC_GET_ITV_TIME		0x90
@@ -596,6 +597,8 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba)
 			 (u32)((1ULL << hisi_hba->queue_count) - 1));
 	hisi_sas_write32(hisi_hba, SAS_AXI_USER3, 0);
 	hisi_sas_write32(hisi_hba, CFG_MAX_TAG, 0xfff0400);
+	/* time / CLK_AHB = 2.5s / 2ns = 0x4A817C80 */
+	hisi_sas_write32(hisi_hba, TRANS_LOCK_ICT_TIME, 0x4A817C80);
 	hisi_sas_write32(hisi_hba, HGC_SAS_TXFAIL_RETRY_CTRL, 0x108);
 	hisi_sas_write32(hisi_hba, CFG_AGING_TIME, 0x1);
 	hisi_sas_write32(hisi_hba, INT_COAL_EN, 0x1);
@@ -3061,6 +3064,7 @@ static const struct hisi_sas_debugfs_reg_lu debugfs_global_reg_lu[] = {
 	HISI_SAS_DEBUGFS_REG(SATA_INITI_D2H_STORE_ADDR_LO),
 	HISI_SAS_DEBUGFS_REG(SATA_INITI_D2H_STORE_ADDR_HI),
 	HISI_SAS_DEBUGFS_REG(CFG_MAX_TAG),
+	HISI_SAS_DEBUGFS_REG(TRANS_LOCK_ICT_TIME),
 	HISI_SAS_DEBUGFS_REG(HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL),
 	HISI_SAS_DEBUGFS_REG(HGC_SAS_TXFAIL_RETRY_CTRL),
 	HISI_SAS_DEBUGFS_REG(HGC_GET_ITV_TIME),