linux-kernel - [PATCH 1/10] scsi: megaraid_sas

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Date:	Tue, 5 May 2009 17:55:24 -0600
From:	"Yang, Bo" <Bo.Yang@....com>
To:	"Yang, Bo" <Bo.Yang@....com>,
	James Bottomley <James.Bottomley@...senPartnership.com>
CC:	"linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
	"akpm@...l.org" <akpm@...l.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Austria, Winston" <Winston.Austria@....com>
Subject: [PATCH 1/10] scsi: megaraid_sas - tape drive support fix

Add the Tape drive fix to the megaraid_sas driver: If the command is for the tape device, set the FW pthru timeout to the os layer timeout value.

Signed-off-by Bo Yang<bo.yang@....com>

---
drivers/scsi/megaraid/megaraid_sas.c |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff -rupN linux-2.6.28_orig/drivers/scsi/megaraid/megaraid_sas.c linux-2.6.28_new/drivers/scsi/megaraid/megaraid_sas.c
--- linux-2.6.28_orig/drivers/scsi/megaraid/megaraid_sas.c      2009-05-04 20:06:29.000000000 -0400
+++ linux-2.6.28_new/drivers/scsi/megaraid/megaraid_sas.c       2009-05-04 20:08:26.000000000 -0400
@@ -687,6 +687,17 @@ megasas_build_dcdb(struct megasas_instan
        memcpy(pthru->cdb, scp->cmnd, scp->cmd_len);

        /*
+       * If the command is for the tape device, set the
+       * pthru timeout to the os layer timeout value.
+       */
+       if (scp->device->type == TYPE_TAPE) {
+               if ((scp->request->timeout / HZ) > 0xFFFF)
+                       pthru->timeout = 0xFFFF;
+               else
+                       pthru->timeout = scp->request->timeout / HZ;
+       }
+
+       /*
         * Construct SGL
         */
        if (IS_DMA64) {
--
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