Re: [PATCH 0/6] libsas and drivers: NCQ error handling

[Jinpu Wang]

On Fri, Jul 22, 2022 at 1:30 PM John Garry <john.garry@xxxxxxxxxx> wrote:
>
> As reported in [0], the pm8001 driver NCQ error handling more or less
> duplicates what libata does in link error handling, as follows:
> - abort all commands
> - do autopsy with read log ext 10 command
> - reset the target to recover
>
> Indeed for the hisi_sas driver we want to add similar handling for NCQ
> errors.
>
> This series add a new libsas API - sas_ata_link_abort() - to handle host
> NCQ errors, and fixes up pm8001 and hisi_sas drivers to use it. As
> mentioned in the pm8001 changeover patch, I would prefer a better place to
> locate the SATA ABORT command (rather that nexus reset callback).
>
> I would appreciate some testing of the pm8001 change as the read log ext10
> command mostly hangs on my arm64 machine - these arm64 hangs are a known
> issue.
>
> Finally with these changes we can make the libsas task alloc/free APIs
> private, which they should always have been.
>
> Based on v5.19-rc6
>
> [0] https://lore.kernel.org/linux-scsi/8fb3b093-55f0-1fab-81f4-e8519810a978@xxxxxxxxxx/
>
> John Garry (5):
>   scsi: pm8001: Modify task abort handling for SATA task
>   scsi: libsas: Add sas_ata_link_abort()
>   scsi: pm8001: Use sas_ata_link_abort() to handle NCQ errors
>   scsi: hisi_sas: Don't issue ATA softreset in hisi_sas_abort_task()
>   scsi: libsas: Make sas_{alloc, alloc_slow, free}_task() private
>
> Xingui Yang (1):
>   scsi: hisi_sas: Add SATA_DISK_ERR bit handling for v3 hw
>
>  drivers/scsi/hisi_sas/hisi_sas_main.c  |   5 +-
>  drivers/scsi/hisi_sas/hisi_sas_v3_hw.c |  22 ++-
>  drivers/scsi/libsas/sas_ata.c          |  10 ++
>  drivers/scsi/libsas/sas_init.c         |   3 -
>  drivers/scsi/libsas/sas_internal.h     |   4 +
>  drivers/scsi/pm8001/pm8001_hwi.c       | 194 +++++++------------------
>  drivers/scsi/pm8001/pm8001_sas.c       |  13 ++
>  drivers/scsi/pm8001/pm8001_sas.h       |   8 +-
>  drivers/scsi/pm8001/pm80xx_hwi.c       | 177 ++--------------------
>  include/scsi/libsas.h                  |   4 -
>  include/scsi/sas_ata.h                 |   5 +
>  11 files changed, 132 insertions(+), 313 deletions(-)

Thank! John and Damien,
for pm80xx.
Acked-by: Jack Wang <jinpu.wang@xxxxxxxxx>
> --
> 2.35.3
>