Re: [PATCH net-next v4 0/3] net: mpls: fragmentation and gso fixes for locally originated traffic

On Mon, Aug 29, 2016 at 02:07:30PM +0200, Simon Horman wrote:

On Fri, Aug 26, 2016 at 11:41:37AM -0700, David Miller wrote:

quoted

From: David Ahern <redacted>
Date: Wed, 24 Aug 2016 20:10:42 -0700

quoted

This series fixes mtu and fragmentation for tunnels using lwtunnel
output redirect, and fixes GSO for MPLS for locally originated traffic
reported by Lennert Buytenhek.

A follow on series will address fragmentation and GSO for forwarded
MPLS traffic. Hardware offload of GSO with MPLS also needs to be
addressed.

Simon: Can you verify this works with OVS for single and multiple
       labels?

Simon, I'm waiting on your testing before I apply this series.

Sorry for the delay. I will test it ASAP.

Sorry once again for the delay,

I have tested this series for both of the following:
* IPv4 in MPLS (just after the ethernet header)
* IPv4 in MPLS in GRE (TEB)

Things seem to work fine.

Tested-by: Simon Horman <redacted>

Expanding a little on the above:

* I tested this using the test cases I have been working on for OvS here:
  http://www.spinics.net/lists/netdev/msg391755.html

  Those test make use of namespaces connected using veth and
  push/pop_mpls actions.

* As the above is quite new I also tested the patchset using my somewhat
  more clumsy local test environment which uses KVM, virtio net and
  push/pop_mpls actions.