This is a note to let you know that I've just added the patch titled
scsi: hisi_sas: Fix normally completed I/O analysed as failed
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
scsi-hisi_sas-fix-normally-completed-i-o-analysed-as.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c8da2a43571e74307fd0778f6c9db18145316b48
Author: Xingui Yang <yangxingui@xxxxxxxxxx>
Date: Tue Jul 11 11:14:58 2023 +0800
scsi: hisi_sas: Fix normally completed I/O analysed as failed
[ Upstream commit f5393a5602cacfda2014e0ff8220e5a7564e7cd1 ]
The PIO read command has no response frame and the struct iu[1024] won't be
filled. I/Os which are normally completed will be treated as failed in
sas_ata_task_done() when iu contains abnormal dirty data.
Consequently ending_fis should not be filled by iu when the response frame
hasn't been written to memory.
Fixes: d380f55503ed ("scsi: hisi_sas: Don't bother clearing status buffer IU in task prep")
Signed-off-by: Xingui Yang <yangxingui@xxxxxxxxxx>
Signed-off-by: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1689045300-44318-2-git-send-email-chenxiang66@xxxxxxxxxxxxx
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index b0b2361e63fef..c40588ed68a54 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -2026,6 +2026,11 @@ static void slot_err_v2_hw(struct hisi_hba *hisi_hba,
u16 dma_tx_err_type = le16_to_cpu(err_record->dma_tx_err_type);
u16 sipc_rx_err_type = le16_to_cpu(err_record->sipc_rx_err_type);
u32 dma_rx_err_type = le32_to_cpu(err_record->dma_rx_err_type);
+ struct hisi_sas_complete_v2_hdr *complete_queue =
+ hisi_hba->complete_hdr[slot->cmplt_queue];
+ struct hisi_sas_complete_v2_hdr *complete_hdr =
+ &complete_queue[slot->cmplt_queue_slot];
+ u32 dw0 = le32_to_cpu(complete_hdr->dw0);
int error = -1;
if (err_phase == 1) {
@@ -2310,7 +2315,8 @@ static void slot_err_v2_hw(struct hisi_hba *hisi_hba,
break;
}
}
- hisi_sas_sata_done(task, slot);
+ if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
+ hisi_sas_sata_done(task, slot);
}
break;
default:
@@ -2442,7 +2448,8 @@ static void slot_complete_v2_hw(struct hisi_hba *hisi_hba,
case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
{
ts->stat = SAS_SAM_STAT_GOOD;
- hisi_sas_sata_done(task, slot);
+ if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
+ hisi_sas_sata_done(task, slot);
break;
}
default:
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index d26b2c9b7c874..b8a12d3ad5f27 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2196,7 +2196,8 @@ slot_err_v3_hw(struct hisi_hba *hisi_hba, struct sas_task *task,
ts->stat = SAS_OPEN_REJECT;
ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
}
- hisi_sas_sata_done(task, slot);
+ if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
+ hisi_sas_sata_done(task, slot);
break;
case SAS_PROTOCOL_SMP:
ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
@@ -2322,7 +2323,8 @@ static void slot_complete_v3_hw(struct hisi_hba *hisi_hba,
case SAS_PROTOCOL_STP:
case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
ts->stat = SAS_SAM_STAT_GOOD;
- hisi_sas_sata_done(task, slot);
+ if (dw0 & CMPLT_HDR_RSPNS_XFRD_MSK)
+ hisi_sas_sata_done(task, slot);
break;
default:
ts->stat = SAS_SAM_STAT_CHECK_CONDITION;
