Hi Gregory,
How about the test result for this patch? BR wenxu At 2018-01-08 10:47:19, "wenxu" <we...@ucloud.cn> wrote: At 2018-01-06 02:23:52, "Gregory Rose" <gvrose8...@gmail.com> wrote: >On 12/28/2017 8:45 PM, we...@ucloud.cn wrote: >> From: wenxu <we...@ucloud.cn> >> >> if the gro enable, ipgre receive a gre-tso package. After pop >> the gre-tunnel the encapsulation and GSO_ENCAP flags should be >> striped. or the packet encap again and will be dropped in >> ovs_iptunnel_handle_offloads >> >> Signed-off-by: wenxu <we...@ucloud.cn> >> --- >> datapath/linux/compat/ip_gre.c | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/datapath/linux/compat/ip_gre.c b/datapath/linux/compat/ip_gre.c >> index 03c5435..94fdaa9 100644 >> --- a/datapath/linux/compat/ip_gre.c >> +++ b/datapath/linux/compat/ip_gre.c >> @@ -140,6 +140,8 @@ static int ipgre_rcv(struct sk_buff *skb, const struct >> tnl_ptk_info *tpi) >> __be64 tun_id; >> int err; >> >> + if (iptunnel_pull_offloads(skb)) >> + return PACKET_REJECT; >> >> skb_pop_mac_header(skb); >> flags = tpi->flags & (TUNNEL_CSUM | TUNNEL_KEY); > >Wenxu, > >I see to patches in the dev list that appear to be identical but this >one has the later timestamp so I'll >respond to this one. > >The patch looks simple enough itself but can you explain how to trigger >the bug so that I can test >this fix? server1: ipaddr on eth2 172.168.0.1/24 ovs-vsctl add br br0 ovs-vsctl add-port br0 gre1 -- set in gre1 type=gre options:local_ip=172.168.0.1 options:remote_ip=172.168.0.7 options:key=1000 ifconfig br0 10.0.0.1/24 up permanent the ip neigh 10.0.0.2 server2:ipaddr on eth2 172.168.0.2/24 ovs-vsctl add br br0 ovs-vsctl add-port br0 gre1 -- set in gre1 type=gre options:local_ip=172.168.0.2 options:remote_ip=172.168.0.7 options:key=1000 ifconfig br0 10.0.0.2/24 up permanent the ip neigh 10.0.0.1 server: gateway ip addr on eth2 172.168.0.7/24 ethtool eth2 gro on ovs-vsctl add br br0 ovs-vsctl add-port br0 gre1 -- set in gre1 type=gre options:local_ip=flow options:remote_ip=flow options:key=1000 flows: in_port=gre1,ip,nw_dst=10.0.0.1,actions=set_field:172.168.0.7->tun_src,set_field:172.168.0.1->tun_dst,output:IN_PORT in_port=gre1,ip,nw_dst=10.0.0.2,actions=set_field:172.168.0.7->tun_src,set_field:172.168.0.2->tun_dst,output:IN_PORT iperf bettwen 10.0.0.1 and 10.0.0.2, the performance is so bad, most of the packet drop on gre_sys of gateway Disable gateway gro of eth2 'ethtool -K eth2 gro off ' , there is no drop When packet encap again and will be dropped in ovs_iptunnel_handle_offloads if (likely(!skb_is_encapsulated(skb))) { skb_reset_inner_headers(skb); skb->encapsulation = 1; } else if (skb_is_gso(skb)) { err = -ENOSYS; //drop in here goto error; } > >Thanks, > >- Greg _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev