linux-stable-rt/net/core
Ajit Khaparde c4d49794ff net: bug fix for vlan + gro issue
Traffic (tcp) doesnot start on a vlan interface when gro is enabled.
Even the tcp handshake was not taking place.
This is because, the eth_type_trans call before the netif_receive_skb
in napi_gro_finish() resets the skb->dev to napi->dev from the previously
set vlan netdev interface. This causes the ip_route_input to drop the
incoming packet considering it as a packet coming from a martian source.

I could repro this on 2.6.32.7 (stable) and 2.6.33-rc7.
With this fix, the traffic starts and the test runs fine on both vlan
and non-vlan interfaces.

CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: Patrick McHardy <kaber@trash.net>
Signed-off-by: Ajit Khaparde <ajitk@serverengines.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23 19:09:31 -08:00
..
Makefile
datagram.c
dev.c net: bug fix for vlan + gro issue 2010-02-23 19:09:31 -08:00
dev_mcast.c
drop_monitor.c
dst.c
ethtool.c
fib_rules.c
filter.c
flow.c
gen_estimator.c
gen_stats.c
iovec.c
kmap_skb.h
link_watch.c
neighbour.c
net-sysfs.c
net-sysfs.h
net-traces.c
net_namespace.c
netevent.c
netpoll.c
pktgen.c
request_sock.c
rtnetlink.c
scm.c
skbuff.c
sock.c
stream.c
sysctl_net_core.c
user_dma.c
utils.c