scsi: hisi_sas: Modify v3 HW ATA completion process when SATA disk is in error status

driver inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5Q63H


CVE: NA

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

When an NCQ error occurs, SAS controller will abnormally complete the I/Os
that newly delivered to disk, and bit8 in CQ dw3 will be set to 1 to
indicate current SATA disk is in error status. The current processing flow
is set ts->stat to SAS_OPEN_REJECT and then sas_ata_task_done() will set
fis stat to ATA_ERR. After analyzed by ata_eh_analyze_tf(), err_mask will
set to AC_ERR_HSM. If media error occurs for four times within 10 minutes
and the chip rejects new I/Os for four times, NCQ will be disabled due to
excessive errors.

However, if media error occurs multiple times, the NCQ mode shouldn't be
disabled. Therefore, use sas_task_abort() to handle abnormally completed
I/Os when SATA disk is in error status.

[10253.397429] hisi_sas_v3_hw 0000:b4:02.0: erroneous completion disk err dev id=2 sas_addr=0x5000000000000605 CQ hdr: 0x400903 0x2007f 0x0 0x80470000
[10253.397430] hisi_sas_v3_hw 0000:b4:02.0: erroneous completion iptt=135 task= pK-error dev id=2 sas_addr=0x5000000000000605 CQ hdr: 0x203 0x20087 0x0 0x100 Error info: 0x0 0x0 0x0 0x0
[10253.397432] hisi_sas_v3_hw 0000:b4:02.0: erroneous completion iptt=136 task= pK-error dev id=2 sas_addr=0x5000000000000605 CQ hdr: 0x203 0x20088 0x0 0x100 Error info: 0x0 0x0 0x0 0x0

Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Reviewed-by: kang fenglong <kangfenglong@huawei.com>
Signed-off-by: Yongqiang Liu <liuyongqiang13@huawei.com>

drivers/scsi/hisi_sas/hisi_sas_v3_hw.c

@@ -413,6 +413,8 @@
 #define CMPLT_HDR_DEV_ID_OFF		16
 #define CMPLT_HDR_DEV_ID_MSK		(0xffff << CMPLT_HDR_DEV_ID_OFF)
 /* dw3 */
+/* ERR_CODE */
+#define SATA_DISK_IN_ERROR_STATUS	BIT(8)
 #define COMLT_HDR_SATA_DISK_ERR_OFF	16
 #define CMPLT_HDR_SATA_DISK_ERR_MSK	(0x1 << COMLT_HDR_SATA_DISK_ERR_OFF)
 #define CMPLT_HDR_IO_IN_TARGET_OFF	17
@@ -2275,7 +2277,8 @@ slot_err_v3_hw(struct hisi_hba *hisi_hba, struct sas_task *task,
 		if ((dw0 & CMPLT_HDR_RSPNS_XFRD_MSK) &&
 			(sipc_rx_err_type & RX_FIS_STATUS_ERR_MSK)) {
 			ts->stat = SAS_PROTO_RESPONSE;
-		} else if (dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) {
+		} else if ((dw3 & CMPLT_HDR_IO_IN_TARGET_MSK) ||
+			(dw3 & SATA_DISK_IN_ERROR_STATUS)) {
 			ts->stat = SAS_PHY_DOWN;
 			slot->abort = 1;
 		} else if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) {