Before this change, the vrouter VIF type used legacy VIF plugging. This
changeset ports the plugging methods over to an external os-vif plugin,
simplifying the in-tree code.
Miscellaneous notes:
* There are two "vrouter" Neutron VIF types:
* "contrail_vrouter" supporting vhostuser plugging, and
* "vrouter", supporting kernel datapath plugging.
* The VIFGeneric os-vif type is used for the kernel TAP based
plugging when the vnic_type is 'normal'.
* For multiqueue support, the minimum version of libvirt 1.3.1 is
required. In that case, libvirt creates the TAP device, rather than
the os-vif plugin. (This is the minimum version for Rocky and later)
ref: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1574957
* The corresponding commit on Tungsten Fabric / OpenContrail for this
work is at:
ed01d315e5
Change-Id: I047856982251fddc631679fb2dbcea0f3b0db097
Signed-off-by: Jan Gutter <jan.gutter@netronome.com>
blueprint: vrouter-os-vif-conversion
172855f293