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List: linux-scsi
Subject: [PATCH] target: Set response format in INQUIRY response
From: Roland Dreier <roland () kernel ! org>
Date: 2011-12-06 18:02:09
Message-ID: 1323194529-17886-1-git-send-email-roland () kernel ! org
[Download RAW message or body]
From: Roland Dreier <roland@purestorage.com>
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>
---
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 957fac7..0a96bbb 100644
--- a/drivers/target/target_core_cdb.c
+++ b/drivers/target/target_core_cdb.c
@@ -96,6 +96,18 @@ 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)
--
1.7.5.4
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