From: Sagi Grimberg <sagig@mellanox.com>
Date: Sun, 18 May 2014 15:32:40 +0000 (+0300)
Subject: mlx5_core: Copy DIF fields only when input and output space values match
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~68^2^8~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c7f44fbda68a6b2d6ceb10e45c711750e779bace;p=pandora-kernel.git

mlx5_core: Copy DIF fields only when input and output space values match

Some DIF implementations (SCSI initiator/target) may want to use different
input/output values for application tag and/or reference tag. So in
case memory/wire domain values don't match HW must not copy them.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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