Re: [PATCH v2 09/18] ata: libata: detect support for command duration limits

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On 1/12/23 15:03, Niklas Cassel wrote:
From: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx>

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 <damien.lemoal@xxxxxxxxxxxxxxxxxx>
Co-developed-by: Niklas Cassel <niklas.cassel@xxxxxxx>
Signed-off-by: Niklas Cassel <niklas.cassel@xxxxxxx>
---
  drivers/ata/libata-core.c | 52 ++++++++++++++++++++++++++++++++++++++-
  drivers/ata/libata-scsi.c | 17 ++++++-------
  include/linux/ata.h       |  5 +++-
  include/linux/libata.h    | 29 +++++++++++++---------
  4 files changed, 80 insertions(+), 23 deletions(-)

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke		           Kernel Storage Architect
hare@xxxxxxx			                  +49 911 74053 688
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), GF: Felix Imendörffer




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