Re: tc H/W offload issue with vxlan tunnels [was: nfp: flower vxlan tunnel offload]

On Wed, 27 Sep 2017 14:55:09 +0200, Jiri Pirko wrote:

So where do you attach the tc filter instead of eth0? vxlan0?

Yes, vxlan0. I'm pasting the example from earlier in this thread again:

This will match:

ip link add vxlan0 type vxlan dstport 4789 dev eth0 external
ip link set dev vxlan0 up
tc qdisc add dev vxlan0 ingress
ethtool -K eth0 hw-tc-offload on
tc filter add dev vxlan0 protocol ip parent ffff: flower enc_key_id 102 \
   enc_dst_port 4789 src_ip 3.4.5.6 skip_sw action [...]

while this must NOT match:

ip link add vxlan0 type vxlan dstport 4789 dev eth0 external
ip link set dev vxlan0 up
tc qdisc add dev eth0 ingress
ethtool -K eth0 hw-tc-offload on
tc filter add dev eth0 protocol ip parent ffff: flower enc_key_id 102 \
   enc_dst_port 4789 src_ip 3.4.5.6 skip_sw action [...]

 Jiri