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ixgbe: fix wrong offset to fc_frame_header in ixgbe_fcoe_ddp 

Make sure we point to the right offset of the fc_frame_header when
VLAN header exists and HW has VLAN stripping disabled.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yi Zou 2010-05-18 16:00:05 +00:00 committed by David S. Miller
parent 0b746e08cd
commit be5d507d9a
1 changed files with 7 additions and 4 deletions
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11
drivers/net/ixgbe/ixgbe_fcoe.c
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@ -32,6 +32,7 @@
#endif /* CONFIG_IXGBE_DCB */
#include <linux/if_ether.h>
#include <linux/gfp.h>
#include <linux/if_vlan.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/fc/fc_fs.h>
@ -312,10 +313,12 @@ int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
if (fcerr == IXGBE_FCERR_BADCRC)
skb->ip_summed = CHECKSUM_NONE;
skb_reset_network_header(skb);
skb_set_transport_header(skb, skb_network_offset(skb) +
sizeof(struct fcoe_hdr));
fh = (struct fc_frame_header *)skb_transport_header(skb);
if (eth_hdr(skb)->h_proto == htons(ETH_P_8021Q))
fh = (struct fc_frame_header *)(skb->data +
sizeof(struct vlan_hdr) + sizeof(struct fcoe_hdr));
else
fh = (struct fc_frame_header *)(skb->data +
sizeof(struct fcoe_hdr));
fctl = ntoh24(fh->fh_f_ctl);
if (fctl & FC_FC_EX_CTX)
xid = be16_to_cpu(fh->fh_ox_id);