On Mon, Dec 14, 2020 at 11:11 AM <xiangxia.m....@gmail.com> wrote: > > From: Tonghao Zhang <xiangxia.m....@gmail.com> > > The root cause is that the old version of openvswitch doesn't > remove the padding from packet before L3+ conntrack processing > and then packets is dropped in linux kernel stack. The patch [1] > fixes the issue. We fix this issue on gateway which running ovs-dpdk > as a quick workaround. Padding should be removed because tunnel size > + inner size > 64B. More detailes, see [1] > > [1] - > https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git/commit/?id=9382fe71c0058465e942a633869629929102843d > Signed-off-by: Tonghao Zhang <xiangxia.m....@gmail.com> ping :) > --- > lib/netdev-native-tnl.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/lib/netdev-native-tnl.c b/lib/netdev-native-tnl.c > index b89dfdd52..acfbb13c4 100644 > --- a/lib/netdev-native-tnl.c > +++ b/lib/netdev-native-tnl.c > @@ -149,11 +149,15 @@ void * > netdev_tnl_push_ip_header(struct dp_packet *packet, > const void *header, int size, int *ip_tot_size) > { > + int padding = dp_packet_l2_pad_size(packet); > struct eth_header *eth; > struct ip_header *ip; > struct ovs_16aligned_ip6_hdr *ip6; > > eth = dp_packet_push_uninit(packet, size); > + if (padding) { > + dp_packet_set_size(packet, dp_packet_size(packet) - padding); > + } > *ip_tot_size = dp_packet_size(packet) - sizeof (struct eth_header); > > memcpy(eth, header, size); > -- > 2.14.1 >
-- Best regards, Tonghao _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
