tree 0eb2237b5c36d8ff1bc40d8867150463f7e9b2e9
parent 146c8a77d27bcbd7722120f70f51e3b287205d0a
author Paul Durrant <Paul.Durrant@citrix.com> 1381942229 +0100
committer David S. Miller <davem@davemloft.net> 1382038516 -0400

xen-netback: add support for IPv6 checksum offload from guest

For performance of VM to VM traffic on a single host it is better to avoid
calculation of TCP/UDP checksum in the sending frontend. To allow this this
patch adds the code necessary to set up partial checksum for IPv6 packets
and xenstore flag feature-ipv6-csum-offload to advertise that fact to
frontends.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>