linux-kernel - [PATCH AUTOSEL 6.8 15/43] scsi: hisi_sas: Handle the NCQ error returned by D2H frame

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Message-ID: <20240422231521.1592991-15-sashal@kernel.org>
Date: Mon, 22 Apr 2024 19:14:01 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Xiang Chen <chenxiang66@...ilicon.com>,
	Xingui Yang <yangxingui@...wei.com>,
	"Martin K . Petersen" <martin.petersen@...cle.com>,
	Sasha Levin <sashal@...nel.org>,
	jejb@...ux.ibm.com,
	linux-scsi@...r.kernel.org
Subject: [PATCH AUTOSEL 6.8 15/43] scsi: hisi_sas: Handle the NCQ error returned by D2H frame

From: Xiang Chen <chenxiang66@...ilicon.com>

[ Upstream commit 358e919a351f2ea4b412e7dac6b1c23ec10bd4f5 ]

We find that some disks use D2H frame instead of SDB frame to return NCQ
error. Currently, only the I/O corresponding to the D2H frame is processed
in this scenario, which does not meet the processing requirements of the
NCQ error scenario.  So we set dev_status to HISI_SAS_DEV_NCQ_ERR and abort
all I/Os of the disk in this scenario.

Co-developed-by: Xingui Yang <yangxingui@...wei.com>
Signed-off-by: Xingui Yang <yangxingui@...wei.com>
Signed-off-by: Xiang Chen <chenxiang66@...ilicon.com>
Link: https://lore.kernel.org/r/20240402035513.2024241-2-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index b56fbc61a15ae..86112f234740d 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2244,7 +2244,15 @@ slot_err_v3_hw(struct hisi_hba *hisi_hba, struct sas_task *task,
 	case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
 		if ((dw0 & CMPLT_HDR_RSPNS_XFRD_MSK) &&
 		    (sipc_rx_err_type & RX_FIS_STATUS_ERR_MSK)) {
-			ts->stat = SAS_PROTO_RESPONSE;
+			if (task->ata_task.use_ncq) {
+				struct domain_device *device = task->dev;
+				struct hisi_sas_device *sas_dev = device->lldd_dev;
+
+				sas_dev->dev_status = HISI_SAS_DEV_NCQ_ERR;
+				slot->abort = 1;
+			} else {
+				ts->stat = SAS_PROTO_RESPONSE;
+			}
 		} else if (dma_rx_err_type & RX_DATA_LEN_UNDERFLOW_MSK) {
 			ts->residual = trans_tx_fail_type;
 			ts->stat = SAS_DATA_UNDERRUN;
-- 
2.43.0