From 93a9397c36390facb429c34a7bca31b7c6c5df39 Mon Sep 17 00:00:00 2001
From: Roland Dreier <roland@purestorage.com>
Date: Tue, 6 Dec 2011 10:02:09 -0800
Subject: [PATCH 106/130] target: Set response format in INQUIRY response

commit ce136176fea522fc8f4c16dcae7e8ed1d890ca39 upstream.

Current SCSI specs say that the "response format" field in the standard
INQUIRY response should be set to 2, and all the real SCSI devices I
have do put 2 here.  So let's do that too.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/target/target_core_cdb.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/drivers/target/target_core_cdb.c b/drivers/target/target_core_cdb.c
index 831468b..2e8c1be 100644
--- a/drivers/target/target_core_cdb.c
+++ b/drivers/target/target_core_cdb.c
@@ -94,6 +94,18 @@ target_emulate_inquiry_std(struct se_cmd *cmd)
 	buf[2] = dev->transport->get_device_rev(dev);
 
 	/*
+	 * NORMACA and HISUP = 0, RESPONSE DATA FORMAT = 2
+	 *
+	 * SPC4 says:
+	 *   A RESPONSE DATA FORMAT field set to 2h indicates that the
+	 *   standard INQUIRY data is in the format defined in this
+	 *   standard. Response data format values less than 2h are
+	 *   obsolete. Response data format values greater than 2h are
+	 *   reserved.
+	 */
+	buf[3] = 2;
+
+	/*
 	 * Enable SCCS and TPGS fields for Emulated ALUA
 	 */
 	if (dev->se_sub_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED)
-- 
1.7.7.4

