xen-netback: add an implementation of toeplitz hashing...
...for receive-side packets.
My recent patch to include/xen/interface/io/netif.h defines a set of
control messages that can be used by a VM frontend driver to configure
toeplitz hashing of receive-side packets and consequent steering of those
packets to particular queues.
This patch introduces an implementation of toeplitz hashing and into
xen-netback and allows it to be configured using the new control messages.
Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com>