On 1/24/23 20:03, Niklas Cassel wrote:
From: Damien Le Moal <damien.lemoal@xxxxxxxxxxxxxxxxxx> Add support for the ATA feature control sub-page of the control mode page to enable/disable the command duration limits feature using the cdl_ctrl field of the ATA feature control sub-page. Both mode sense and mode select translation are supported. For mode sense, the ata device flag ATA_DFLAG_CDL_ENABLED is used to cache the status of the command duration limits feature. Enabling this feature is done using a SET FEATURES command with a cdl action set to 1 when the page cdl_ctrl field value is 0x2 (T2A and T2B pages supported). If this field is 0, CDL is disabled using the SET FEATURES command with a cdl action set to 0. Since a device CDL and NCQ priority features should not be used simultaneously, ata_mselect_control_ata_feature() returns an error when attempting to enable CDL with the device priority feature enabled. Conversely, the function ata_ncq_prio_enable_store() used to enable the use of the device NCQ priority feature through sysfs is modified to return an error if the device CDL feature is enabled. 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 | 40 ++++++++- drivers/ata/libata-sata.c | 11 ++- drivers/ata/libata-scsi.c | 167 ++++++++++++++++++++++++++++++++------ include/linux/ata.h | 3 + include/linux/libata.h | 1 + 5 files changed, 193 insertions(+), 29 deletions(-)
Reviewed-by: Hannes Reinecke <hare@xxxxxxx> Cheers, Hannes
