linux-kernel - [PATCH v4 00/16] block: sed-opal: support shadow MBR done flag and write

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Message-Id: <1549054223-12220-1-git-send-email-zub@linux.fjfi.cvut.cz>
Date:   Fri,  1 Feb 2019 21:50:07 +0100
From:   David Kozub <zub@...ux.fjfi.cvut.cz>
To:     Jens Axboe <axboe@...nel.dk>,
        Jonathan Derrick <jonathan.derrick@...el.com>,
        Scott Bauer <sbauer@...donthack.me>,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Jonas Rabenstein <jonas.rabenstein@...dium.uni-erlangen.de>,
        David Kozub <zub@...ux.fjfi.cvut.cz>
Subject: [PATCH v4 00/16] block: sed-opal: support shadow MBR done flag and write

This patch series extends SED OPAL support: it adds IOCTL for setting the shadow
MBR done flag which can be useful for unlocking an OPAL disk on boot and it adds
IOCTL for writing to the shadow MBR. Also included are some minor fixes and
improvements.

This series is based on the original work done by Jonas Rabenstein which was
submitted in March 2018.[1]

There is a fork of sed-opal-temp that can use these new IOCTLs.[2] I tested
these on Samsung 840 EVO and 850 EVO drives, on x86-64 and arm64 systems.

The series applies on v5.0-rc4.

I'm resending as v4 as suggested by Scott Bauer.[3]

Changes from v3 to v4:
* added Reviewed-by from Scott, including for the patch 16/16 (details in
[3])

[1] https://lore.kernel.org/lkml/cover.1521482295.git.jonas.rabenstein@studium.uni-erlangen.de/
[2] https://github.com/ghostav/sed-opal-temp
[3] https://lore.kernel.org/lkml/20190127211449.GP21149@hacktheplanet/

David Kozub (8):
  block: sed-opal: fix typos and formatting
  block: sed-opal: close parameter list in cmd_finalize
  block: sed-opal: unify cmd start
  block: sed-opal: unify error handling of responses
  block: sed-opal: reuse response_get_token to decrease code duplication
  block: sed-opal: pass steps via argument rather than via opal_dev
  block: sed-opal: don't repeat opal_discovery0 in each steps array
  block: sed-opal: rename next to execute_steps

Jonas Rabenstein (8):
  block: sed-opal: use correct macro for method length
  block: sed-opal: unify space check in add_token_*
  block: sed-opal: print failed function address
  block: sed-opal: split generation of bytestring header and content
  block: sed-opal: add ioctl for done-mark of shadow mbr
  block: sed-opal: ioctl for writing to shadow mbr
  block: sed-opal: unify retrieval of table columns
  block: sed-opal: check size of shadow mbr

 block/opal_proto.h            |  18 +
 block/sed-opal.c              | 845 +++++++++++++++++-----------------
 include/linux/sed-opal.h      |   2 +
 include/uapi/linux/sed-opal.h |   9 +
 4 files changed, 451 insertions(+), 423 deletions(-)

-- 
2.20.1