linux-toradex.git/include/linux/ata.h, branch v5.19-rc3

ata: libata-core: Fix ata_dev_config_cpr()

2022-02-07T13:38:02+00:00

The concurrent positioning ranges log page 47h is a general purpose log
page and not a subpage of the indentify device log. Using
ata_identify_page_supported() to test for concurrent positioning ranges
support is thus wrong. ata_log_supported() must be used.

Furthermore, unlike other advanced ATA features (e.g. NCQ priority),
accesses to the concurrent positioning ranges log page are not gated by
a feature bit from the device IDENTIFY data. Since many older drives
react badly to the READ LOG EXT and/or READ LOG DMA EXT commands isued
to read device log pages, avoid problems with older drives by limiting
the concurrent positioning ranges support detection to drives
implementing at least the ACS-4 ATA standard (major version 11). This
additional condition effectively turns ata_dev_config_cpr() into a nop
for older drives, avoiding problems in the field.

Fixes: fe22e1c2f705 ("libata: support concurrent positioning ranges log")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215519
Cc: stable@vger.kernel.org
Reviewed-by: Hannes Reinecke 
Tested-by: Abderraouf Adjal 
Signed-off-by: Damien Le Moal

libata: support concurrent positioning ranges log

2021-10-27T03:01:48+00:00

Add support to discover if an ATA device supports the Concurrent
Positioning Ranges data log (address 0x47), indicating that the device
is capable of seeking to multiple different locations in parallel using
multiple actuators serving different LBA ranges.

Also add support to translate the concurrent positioning ranges log
into its equivalent Concurrent Positioning Ranges VPD page B9h in
libata-scsi.c.

The format of the Concurrent Positioning Ranges Log is defined in ACS-5
r9.

Signed-off-by: Damien Le Moal 
Reviewed-by: Hannes Reinecke 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Martin K. Petersen 
Reviewed-by: Keith Busch 
Link: https://lore.kernel.org/r/20211027022223.183838-4-damien.lemoal@wdc.com
Signed-off-by: Jens Axboe

ata: Replace inclusion of kernel.h by bits.h in the header

2021-05-17T15:10:20+00:00

ata.h uses BIT() macro, hence bits.h must be included. Otherwise
there is no need to have kernel.h included, I do not see any
direct users of it in ata.h. Hence replace inclusion of kernel.h.

Signed-off-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210409153456.87798-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jens Axboe

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