linux-toradex.git/include/linux/ata.h, branch v5.12-rc6

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 18

2019-05-21T09:28:46+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 or at your option any
  later version this program is distributed in the hope that it will
  be useful but without any warranty without even the implied warranty
  of merchantability or fitness for a particular purpose see the gnu
  general public license for more details you should have received a
  copy of the gnu general public license along with this program see
  the file copying if not write to the free software foundation 675
  mass ave cambridge ma 02139 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 52 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Jilayne Lovejoy 
Reviewed-by: Steve Winslow 
Reviewed-by: Kate Stewart 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154042.342335923@linutronix.de
Signed-off-by: Greg Kroah-Hartman

scsi: ata: enhance the definition of SET MAX feature field value

2018-01-11T04:25:08+00:00

There are two other values for SET MAX feature field according to ata
protocol. So definite them.

Signed-off-by: Xiang Chen 
Signed-off-by: John Garry 
Acked-by: Tejun Heo 
Signed-off-by: Martin K. Petersen

libata: check for trusted computing in IDENTIFY DEVICE data

2017-08-29T15:33:24+00:00

ATA-8 and later mirrors the TRUSTED COMPUTING SUPPORTED bit in word 48 of
the IDENTIFY DEVICE data.  Check this before issuing a READ LOG PAGE
command to avoid issues with buggy devices.  The only downside is that
we can't support Security Send / Receive for a device with an older
revision due to the conflicting use of this field in earlier
specifications.

tj: The reason we need this is because some devices which don't
    support READ LOG PAGE lock up after getting issued that command.

Signed-off-by: Christoph Hellwig 
Tested-by: David Ahern 
Signed-off-by: Tejun Heo

libata: implement SECURITY PROTOCOL IN/OUT

2017-06-05T19:29:22+00:00

This allows us to use the generic OPAL code with ATA devices.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Tejun Heo

libata: clarify log page naming / grouping

2017-06-05T19:29:21+00:00

Signed-off-by: Christoph Hellwig 
Signed-off-by: Tejun Heo

ata: update references for libata documentation

2017-05-16T15:25:59+00:00

The libata documentation is now using ReST. Update references
to it to point to the new place.

Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Tejun Heo

libata: remove SCT WRITE SAME support

2017-04-28T22:09:59+00:00

This was already disabled a while ago because it caused I/O errors,
and it's severly getting into the way of the discard / write zeroes
rework.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Martin K. Petersen 
Signed-off-by: Tejun Heo

ata: Enabling ATA Command Priorities

2016-10-19T18:34:36+00:00

This patch checks to see if an ATA device supports NCQ command priorities.
If so and the user has specified an iocontext that indicates
IO_PRIO_CLASS_RT then we build a tf with a high priority command.

This is done to improve the tail latency of commands that are high
priority by passing priority to the device.

tj: Removed trivial ata_ncq_prio_enabled() and open-coded the test.

Signed-off-by: Adam Manzanares 
Signed-off-by: Tejun Heo

libata: Add support for SCT Write Same

2016-08-25T15:26:48+00:00

SATA drives may support write same via SCT. This is useful
for setting the drive contents to a specific pattern (0's).

Translate a SCSI WRITE SAME 16 command to be either a DSM TRIM
command or an SCT Write Same command.

Based on the UNMAP flag:
  - When set translate to DSM TRIM
  - When not set translate to SCT Write Same

Signed-off-by: Shaun Tancheff 
Reviewed-by: Hannes Reinecke 
Acked-by: Tejun Heo

libata: Safely overwrite attached page in WRITE SAME xlat

2016-08-25T15:26:48+00:00

Safely overwriting the attached page to ATA format from the SCSI formatted
variant.

Signed-off-by: Shaun Tancheff 
Reviewed-by: Hannes Reinecke 
Acked-by: Tejun Heo