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Message-Id: <1404974032-5023-8-git-send-email-kys@microsoft.com>
Date: Wed, 9 Jul 2014 23:33:52 -0700
From: "K. Y. Srinivasan" <kys@...rosoft.com>
To: linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
ohering@...e.com, jbottomley@...allels.com, hch@...radead.org,
jasowang@...hat.com, apw@...onical.com, linux-scsi@...r.kernel.org
Cc: "K. Y. Srinivasan" <kys@...rosoft.com>, <stable@...r.kernel.org>
Subject: [PATCH V2 8/8] drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure
On some Windows hosts on FC SANs, TEST_UNIT_READY can return SRB_STATUS_ERROR.
Correctly handle this.
In this version of the patch I have addressed comments from
Christoph Hellwig <hch@...radead.org>
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Cc: <stable@...r.kernel.org>
---
drivers/scsi/storvsc_drv.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 84b9b39..6fed0dd 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1020,6 +1020,13 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb,
case ATA_12:
set_host_byte(scmnd, DID_PASSTHROUGH);
break;
+ /*
+ * On Some Windows hosts TEST_UNIT_READY command can return
+ * SRB_STATUS_ERROR, let the upper level code deal with it
+ * based on the sense information.
+ */
+ case TEST_UNIT_READY:
+ break;
default:
set_host_byte(scmnd, DID_TARGET_FAILURE);
}
--
1.7.4.1
--
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