scsi: ata: libata: Detect support for command duration limits

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Use the supported capabilities identify device data log page to detect if a
device supports the command duration limits feature. For devices supporting
this feature, set the device flag ATA_DFLAG_CDL. To support SCSI-ATA
translation, retrieve the command duration limits log page 18h and cache
this page content using the cdl array added to the ata_device data
structure.

Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Co-developed-by: Niklas Cassel <niklas.cassel@wdc.com>
Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Link: https://lore.kernel.org/r/20230511011356.227789-15-nks@flawful.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Damien Le Moal 2023-05-11 03:13:47 +02:00 • committed by Martin K. Petersen

parent 24aeebbf8e

commit 62e4a60e0c

4 changed files with 80 additions and 23 deletions

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52

drivers/ata/libata-core.c

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17

drivers/ata/libata-scsi.c

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5

include/linux/ata.h

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25

include/linux/libata.h

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