linux-kernel - [patch] qla2xxx: use F/W calculated residual length.

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Message-ID: <20091201013720.GA15068@joejin-pc.cn.oracle.com>
Date:	Tue, 1 Dec 2009 09:37:20 +0800
From:	Joe Jin <joe.jin@...cle.com>
To:	andrew.vasquez@...gic.com
Cc:	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	gurudas.pai@...cle.com, kate.zhang@...cle.com, joe.jin@...cle.com
Subject: [patch] qla2xxx: use F/W calculated residual length.

Hi,

When comp_status is CS_DATA_OVERRUN, residual length calculated by F/W,
but when comp_status is CS_COMMPLETE, residual length just set to residual
count, at here calculated residual length may via F/W?

Please review.

Signed-off-by: Joe Jin <joe.jin@...cle.com>
CC: Andrew Vasquez <andrew.vasquez@...gic.com>

---
 qla_isr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index b20a716..4d1d410 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1398,7 +1398,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 			break;
 		}
 		if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
-			resid = resid_len;
+			resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
 			scsi_set_resid(cp, resid);
 
 			if (!lscsi_status &&


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