On 2022/08/17 7:52, John Garry 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_device_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).
>
> Damien kindly tested the v1 series for pm8001, but any further pm8001
> testing would be appreciated as I have since tweaked
> sas_ata_device_link_abort(). This is because the pm8001 driver hangs on my
> arm64 machine read log ext10 command.
I will run more tests with this series.
>
> Finally with these changes we can make the libsas task alloc/free APIs
> private, which they should always have been.
>
> Based on v6.0-rc1
>
> [0] https://lore.kernel.org/linux-scsi/8fb3b093-55f0-1fab-81f4-e8519810a978@huawei.com/
>
> Changes since v1:
> - Rename sas_ata_link_abort() -> sas_ata_device_link_abort()
> - Set EH RESET flag in sas_ata_device_link_abort()
> - Add Jack's Ack tags
> - Rebase
>
> John Garry (5):
> scsi: pm8001: Modify task abort handling for SATA task
> scsi: libsas: Add sas_ata_device_link_abort()
> scsi: pm8001: Use sas_ata_device_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 | 11 ++
> 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, 133 insertions(+), 313 deletions(-)
>
--
Damien Le Moal
Western Digital Research