Re: [PATCH v2 5/5] ata: libata-scsi: support the all command format for reporting supported commands

[Hannes Reinecke <hare@suse.de>]

On 7/2/26 8:34 AM, Damien Le Moal wrote:
> Add support to ata_scsi_report_supported_opcodes() for the all command
> format indicated with a reporting option of 0. The function
> ata_scsi_report_all_supported_opcodes() is introduced to implement this
> support. This function operates by testing all commands of the
> ata_supported_cmds array and testing them using
> ata_scsi_cmd_is_supported(), filling rbuf as it loops through all the
> commands that libata can emulate or translate.
> 
> With this change, sg_opcodes /dev/sdX is able to list all commands
> supported by libata and a device. An example below is shown for a SATA
> disk also supporting CDL:
> 
>    # sg_opcodes /dev/sda
>      ATA       WDC  WUH722626AL  WZ41
>      Peripheral device type: disk
> 
>    Opcode  Service    CDB  RWCDLP,  Name
>    (hex)   action(h)  size   CDLP
>    -----------------------------------------------
>     00                  6    0,0    Test Unit Ready
>     01                  6    0,0    Rezero Unit
>     03                  6    0,0    Request Sense
>     08                  6    0,0    Read(6)
>     0a                  6    0,0    Write(6)
>     0b                  6    0,0    Seek(6)
>     12                  6    0,0    Inquiry
>     15                  6    0,0    Mode select(6)
>     1a                  6    0,0    Mode sense(6)
>     1b                  6    0,0    Start stop unit
>     1d                  6    0,0    Send diagnostic
>     25                 10    0,0    Read capacity(10)
>     28                 10    0,0    Read(10)
>     2a                 10    0,0    Write(10)
>     2b                 10    0,0    Seek(10)
>     2f                 10    0,0    Verify(10)
>     35                 10    0,0    Synchronize cache(10)
>     55                 10    0,0    Mode select(10)
>     5a                 10    0,0    Mode sense(10)
>     7f     1ff0        32    0,0    ATA pass-through(32)
>     85                 16    0,0    ATA pass-through(16)
>     88                 16    1,1    Read(16)
>     8a                 16    1,2    Write(16)
>     8f                 16    0,0    Verify(16)
>     91                 16    0,0    Synchronize cache(16)
>     93                 16    0,0    Write same(16)
>     9e       10        16    0,0    Read capacity(16)
>     a0                 12    0,0    Report luns
>     a1                 12    0,0    ATA pass-through(12)
>     a3        c        12    0,0    Report supported operation codes
> 
> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
> ---
>   drivers/ata/libata-scsi.c | 39 +++++++++++++++++++++++++++++++++++++++
>   1 file changed, 39 insertions(+)
> 
Reviewed-by: Hannes Reinecke <hare@kernel.org>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@suse.de                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
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