netdev - [PATCH 7/7] fcoe: fcoe fc crc offload indication by skb->ip

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Message-ID: <20090219195031.22270.35911.stgit.yi.zou@intel.com>
Date:	Thu, 19 Feb 2009 12:50:31 -0700
From:	Yi Zou <yi.zou@...el.com>
To:	linux-scsi@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH 7/7] fcoe: fcoe fc crc offload indication by skb->ip_summed

If LLD supports FCCRC offload, it should set ip_summed to be
CHECKSUM_UNNECESSARY so we don't have to do CRC check again.

Signed-off-by: Yi Zou <yi.zou@...el.com>
---

 drivers/scsi/fcoe/libfcoe.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 3072428..2a34832 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -624,7 +624,7 @@ int fcoe_percpu_receive_thread(void *arg)
 		 * it's solicited data, in which case, the FCP layer would
 		 * check it during the copy.
 		 */
-		if (lp->crc_offload)
+		if (lp->crc_offload && skb->ip_summed == CHECKSUM_UNNECESSARY)
 			fr_flags(fp) &= ~FCPHF_CRC_UNCHECKED;
 		else
 			fr_flags(fp) |= FCPHF_CRC_UNCHECKED;

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