mirror of
https://github.com/hardkernel/linux.git
synced 2026-06-06 02:50:49 +09:00
811be570a9
In commit c6b9ef5779 ("[SCSI] pm80xx: NCQ error handling changes") the
driver had support added to handle NCQ errors but much of what is done in
this handling is duplicated from the libata EH.
In that named commit we handle in 2x main steps:
a. Issue read log ext10 to examine and clear the errors
b. Issue SATA_ABORT all command
Indeed, in libata EH, we do similar to above:
a. ata_do_eh() -> ata_eh_autopsy() -> ata_eh_link_autopsy() ->
ata_eh_analyze_ncq_error() -> ata_eh_read_log_10h()
b. ata_do_eh() -> ata_eh_recover() which will issue a device soft reset
or hard reset
Since there is so much duplication, use sas_ata_device_link_abort() which
will abort all pending IOs and kick of ATA EH which will do the steps,
above.
However we will not follow the advisory to send the SATA_ABORT all command
after the autopsy in read log ext10. Indeed, in libsas EH, we already send
a per-task SATA_ABORT command, and this is prior to the ATA EH kicking in
and issuing the read log ext10 in the recovery process. I judge that this
is ok as the SATA_ABORT command does not actually send any protocol on the
link to abort I/O on the other side, so would not change any state on the
disk (for the read log ext10 command).
Signed-off-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1665998435-199946-7-git-send-email-john.garry@huawei.com
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Niklas Cassel <niklas.cassel@wdc.com> # pm80xx
Acked-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.