From b3eab22d04ae4129adf50cb11655cf5c17c6dc22 Mon Sep 17 00:00:00 2001 From: Xingui Yang Date: Thu, 16 Mar 2023 20:21:42 +0800 Subject: [PATCH] scsi: hisi_sas: Handle NCQ error when IPTT is valid driver inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I6NPLN CVE: NA ---------------------------------------------------------------------- If an NCQ error occurs when the IPTT is valid and slot->abort flag is set in completion path, sas_task_abort() will be called to abort only one NCQ command now, and the host would be set to SHOST_RECOVERY state. But this may not kick-off EH Immediately until other outstanding QCs timeouts. As a result, the host may remain in the SHOST_RECOVERY state for up to 30 seconds, such as follows: [7972317.645234] hisi_sas_v3_hw 0000:74:04.0: erroneous completion iptt=3264 task=00000000466116b8 dev id=2 sas_addr=0x5000000000000502 CQ hdr: 0x1883 0x20cc0 0x40000 0x20420000 Error info: 0x0 0x0 0x200000 0x0 [7972341.508264] sas: Enter sas_scsi_recover_host busy: 32 failed: 32 [7972341.984731] sas: --- Exit sas_scsi_recover_host: busy: 0 failed: 32 tries: 1 So all NCQ commands that are in the queue should be aborted when an NCQ error occurs In this scenario. Fixes: 05d91b557af9 ("scsi: hisi_sas: Directly trigger SCSI error handling for completion errors") Signed-off-by: Xingui Yang Reviewed-by: Xiang Chen Signed-off-by: xiabing --- drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 6 +++++- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 6 +++++- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 6 +++++- 3 files changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c index fdff327bb030..a820c97f33a8 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c @@ -1259,7 +1259,11 @@ static void slot_complete_v1_hw(struct hisi_hba *hisi_hba, slot_err_v1_hw(hisi_hba, task, slot); if (unlikely(slot->abort)) { - sas_task_abort(task); + if (dev_is_sata(device) && task->ata_task.use_ncq) + sas_ata_device_link_abort(device, true); + else + sas_task_abort(task); + return; } goto out; diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index 9bfa796505aa..071430785100 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -2405,7 +2405,11 @@ static void slot_complete_v2_hw(struct hisi_hba *hisi_hba, error_info[2], error_info[3]); if (unlikely(slot->abort)) { - sas_task_abort(task); + if (dev_is_sata(device) && task->ata_task.use_ncq) + sas_ata_device_link_abort(device, true); + else + sas_task_abort(task); + return; } goto out; diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index a36d9382e15a..4d36ff3657d2 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2318,7 +2318,11 @@ static void slot_complete_v3_hw(struct hisi_hba *hisi_hba, error_info[0], error_info[1], error_info[2], error_info[3]); if (unlikely(slot->abort)) { - sas_task_abort(task); + if (dev_is_sata(device) && task->ata_task.use_ncq) + sas_ata_device_link_abort(device, true); + else + sas_task_abort(task); + return; } goto out; -- GitLab