]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
bnx2x: Look inside vlan when determining checksum proto.
authorHao Zheng <hzheng@nicira.com>
Thu, 11 Nov 2010 13:47:58 +0000 (13:47 +0000)
committerDavid S. Miller <davem@davemloft.net>
Fri, 12 Nov 2010 20:30:57 +0000 (12:30 -0800)
commitd0d9d8ef5949551276f635cb04969184ba1a9553
treeaf047399a863775870adf28a476056526704a612
parent0a85df004667c99efc31fab07386823eefce3be5
bnx2x: Look inside vlan when determining checksum proto.

Currently the skb->protocol field is used to setup checksum
offloading on transmit for the correct protocol.  However, if
vlan offloading is disabled or otherwise not used, the protocol
field will be ETH_P_8021Q, not the actual protocol.  This will
cause the checksum to be not computed correctly, even though the
hardware is capable of looking inside vlan tags.  Instead,
look inside the header if necessary to determine the correct
protocol type.

To some extent this fixes a regression from 2.6.36 because it
was previously not possible to disable vlan offloading and this
error case was not exposed.

Signed-off-by: Hao Zheng <hzheng@nicira.com>
CC: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/bnx2x/bnx2x_cmn.c