| From | Jiri Slaby <> | Subject | [PATCH 3.12 064/142] drivers: scsi: storvsc: Correctly handle TEST_UNIT_READY failure | Date | Fri, 26 Sep 2014 11:44:35 +0200 |
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From: "K. Y. Srinivasan" <kys@microsoft.com>
3.12-stable review patch. If anyone has any objections, please let me know.
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commit 3533f8603d28b77c62d75ec899449a99bc6b77a1 upstream.
On some Windows hosts on FC SANs, TEST_UNIT_READY can return SRB_STATUS_ERROR. Correctly handle this. Note that there is sufficient sense information to support scsi error handling even in this case.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jiri Slaby <jslaby@suse.cz> --- drivers/scsi/storvsc_drv.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index b529ae8e8fff..ed0f899e8aa5 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -1018,6 +1018,13 @@ 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); } -- 2.1.0
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