linux-kernel - [ 05/45] SCSI: mpt2sas: fix firmware failure with wrong task attribute

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Message-Id: <20130726205655.507293792@linuxfoundation.org>
Date:	Fri, 26 Jul 2013 13:57:25 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Sreekanth Reddy <Sreekanth.Reddy@....com>,
	James Bottomley <JBottomley@...allels.com>
Subject: [ 05/45] SCSI: mpt2sas: fix firmware failure with wrong task attribute

3.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sreekanth Reddy <Sreekanth.Reddy@....com>

commit 48ba2efc382f94fae16ca8ca011e5961a81ad1ea upstream.

When SCSI command is received with task attribute not set, set it to SIMPLE.
Previously it is set to untagged. This causes the firmware to fail the commands.

Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@....com>
Signed-off-by: James Bottomley <JBottomley@...allels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/mpt2sas/mpt2sas_scsih.c |    6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -3740,11 +3740,7 @@ _scsih_qcmd_lck(struct scsi_cmnd *scmd,
 			else
 				mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
 		} else
-/* MPI Revision I (UNIT = 0xA) - removed MPI2_SCSIIO_CONTROL_UNTAGGED */
-/*			mpi_control |= MPI2_SCSIIO_CONTROL_UNTAGGED;
- */
-			mpi_control |= (0x500);
-
+			mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
 	} else
 		mpi_control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
 	/* Make sure Device is not raid volume.


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