From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Sat, 18 Jan 2014 09:33:48 +0000 (+0000)
Subject: target/file: Add DIF protection support to fd_execute_rw
X-Git-Tag: v3.14-rc1~17^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=42201b557471f2fef2e9e028b50a773d99ffc401;p=pandora-kernel.git

target/file: Add DIF protection support to fd_execute_rw

This patch adds support for DIF protection into fd_execute_rw() code
for WRITE/READ I/O using sbc_dif_verify_[write,read]() logic.

It adds fd_do_prot_rw() for handling interface with FILEIO PI, and
uses a locally allocated fd_prot->prot_buf + fd_prot->prot_sg for
interacting with SBC DIF verify emulation code.

Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hannes Reinecke <hare@suse.de>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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