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scsi_add_lun() tests the device vendor string of SCSI devices to detect if a SCSI device is in fact an ATA device, in order to correctly handle SATL power management. The function scsi_cdl_enable() also requires knowing if a SCSI device is an ATA device to control the state of the device CDL feature but this function does that by testing for the presence of the VPD page 89h (ATA INFORMATION page). sd_read_write_same() also has a similar test. Simplify these different methods by adding the is_ata field to struct scsi_device to remember that a SCSI device is in fact an ATA one based on the device vendor name test. This field can also allow low level SCSI host adapter drivers to take special actions for ATA devices (e.g. to better handle ATA NCQ errors). With this, simplify scsi_cdl_enable() and sd_read_write_same(). Signed-off-by: Damien Le Moal <dlemoal@kernel.org> Link: https://lore.kernel.org/r/20250611093421.2901633-1-dlemoal@kernel.org Reviewed-by: Igor Pylypiv <ipylypiv@google.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
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| kunit | ||
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| linux | ||
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| scsi | ||
| soc | ||
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