[PATCH v4 0/7] NCQ Priority sysfs sttributes for libsas

From: Igor Pylypiv
Date: Mon Mar 04 2024 - 17:08:38 EST


This patch series adds sas_ncq_prio_supported and sas_ncq_prio_enable
sysfs sttributes for libsas managed SATA devices. Existing libata sysfs
attributes cannot be used directly because the ata_port location is
different for libsas.

Changes since v3:
- Changed ata_ncq_prio_supported() and ata_ncq_prio_enabled() to store
the result into a boolean variable passed by address.
- Removed the "usable with both libsas and libata" wording from
ata_ncq_prio_* helper's function comments.
- Removed the unlikely() in ata_ncq_prio_enable() because the function
is not in a fastpath.
- Dropped hisi_sas v1 HW driver changes because it doesn't support SATA.

Changes since v2:
- Added libsas SATA sysfs attributes to aic94xx and isci.

Changes since v1:
- Dropped the "sas_" prefix to align sysfs sttributes naming with AHCI.
- Dropped ternary operators to make the code more readable.
- Corrected the formatting %u -> %d in sysfs_emit().
- Changed kstrtol() to kstrtobool() in [ata|sas]_ncq_prio_enable_store().
- Changed comments to use the "/* */" style instead of "//".
- Added libsas SATA sysfs attributes to mvsas and hisi_sas.
- Dropped the 'Reviewed-by' tags because they were not sent in-reply
to the patch emails.

Igor Pylypiv (7):
ata: libata-sata: Factor out NCQ Priority configuration helpers
scsi: libsas: Define NCQ Priority sysfs attributes for SATA devices
scsi: pm80xx: Add libsas SATA sysfs attributes group
scsi: mvsas: Add libsas SATA sysfs attributes group
scsi: hisi_sas: Add libsas SATA sysfs attributes group
scsi: aic94xx: Add libsas SATA sysfs attributes group
scsi: isci: Add libsas SATA sysfs attributes group

drivers/ata/libata-sata.c | 140 ++++++++++++++++++-------
drivers/scsi/aic94xx/aic94xx_init.c | 8 ++
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 6 ++
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 6 ++
drivers/scsi/isci/init.c | 6 ++
drivers/scsi/libsas/sas_ata.c | 94 +++++++++++++++++
drivers/scsi/mvsas/mv_init.c | 7 ++
drivers/scsi/pm8001/pm8001_ctl.c | 5 +
drivers/scsi/pm8001/pm8001_init.c | 1 +
drivers/scsi/pm8001/pm8001_sas.h | 1 +
include/linux/libata.h | 6 ++
include/scsi/sas_ata.h | 6 ++
12 files changed, 247 insertions(+), 39 deletions(-)

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2.44.0.278.ge034bb2e1d-goog