linux-kernel - [PATCH 0/2] scsi/scsi_debug: Add missing scsi.h defs and XDWRITEREAD

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Date:	Tue, 21 Sep 2010 22:50:40 -0700
From:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
To:	linux-scsi <linux-scsi@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	James Bottomley <James.Bottomley@...e.de>,
	Douglas Gilbert <dgilbert@...erlog.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Boaz Harrosh <bharrosh@...asas.com>,
	Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: [PATCH 0/2] scsi/scsi_debug: Add missing scsi.h defs and XDWRITEREAD_32 support

From: Nicholas Bellinger <nab@...ux-iscsi.org>

Hi Doug and James,

Attached are two patches for Linux/SCSI that I ended up needing to allow the
simple XDWRITEREAD_32 passthrough into TCM/pSCSI -> struct request -> SCSI Midlayer
in recent lio-core-2.6.git/lio-4.0 commits.

The first adds some missing SPC-4 CDB and MAINTENANCE_[IN,OUT] +
VARIABLE_LENGTH_CMD service actions to include/scsi/scsi.h.  These
are used by TCM Core code and pieces of this patch have been posted
here for the RFC before:

http://marc.info/?l=linux-scsi&m=128316041105964&w=2

The second adds XDWRITEREAD_32 emulation to scsi_debug, which
is pretty quite simple because everything we need is already
handled by XDWRITEREAD_10.  8-)

This has been tested using 'sgv4_xdwriteread -e' with TCM_Loop ->
TCM/pSCSI -> scsi_debug 32-byte BIDI-COMMAND CDB passthrough on
v2.6.36-rc4.

Thanks!

Signed-off-by: Nicholas A. Bellinger <nab@...ux-iscsi.org>

Nicholas Bellinger (2):
  scsi: Add missing SPC-4 CDB and MAINTENANCE_[IN,OUT] and
    VARIABLE_LENGTH_CMD service actions
  scsi_debug: Add XDWRITEREAD_32 support

 drivers/scsi/scsi_debug.c |    3 +++
 include/scsi/scsi.h       |   28 ++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 0 deletions(-)

-- 
1.7.3

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