On Fri, Jul 31, 2015 at 8:41 AM, Alexei Starovoitov [off-list ref] wrote:

thanks. I think exposing collect_metadata for vxlan and in the future
for other tunnel types is the clean enough way, though the other
alternative would be to get rid of collect_metadata flag
from the kernel and do it when flowmode flag is set. Thoughts?

This seems like a good idea to me - I'm not sure that flow based
tunnels are all that useful without metadata collection enabled and
the fewer interfaces that we have to create for each tunnel type, the
better.