On 12/15/2016 02:07 AM, Or Gerlitz wrote: > On Fri, Nov 18, 2016 at 1:01 AM, Jarno Rajahalme <ja...@ovn.org> wrote: >> This patch is a proof-of-concept I did a few months ago for UDP tunnel >> offload support in virtio_net interface [..] > > What's the use case you were considering for a guest running a UDP based VTEP?
Two cases that I've been aware of are nested virt or simply a guest acting as router/bridge with possible different tunnel devices. -vlad > >> Real implementation needs to extend the virtio_net header rather than >> piggy-backing on existing fields. Inner MAC length (or inner network >> offset) also needs to be passed as a new field. Control plane (QEMU) >> also needs to be updated. >> >> All testing was done using Geneve, but this should work for all UDP >> tunnels the same.
