tree eae794db0b3983d2a901ecf6471eda6e3f9ff26f
parent 75a0a52be3c27b58654fbed2c8f2ff401482b9a4
author Michael S. Tsirkin <mst@redhat.com> 1346870865 +0300
committer Rusty Russell <rusty@rustcorp.com.au> 1348810515 +0930

virtio: support reserved vqs

virtio network device multiqueue support reserves
vq 3 for future use (useful both for future extensions and to make it
pretty - this way receive vqs have even and transmit - odd numbers).
Make it possible to skip initialization for
specific vq numbers by specifying NULL for name.
Document this usage as well as (existing) NULL callback.

Drivers using this not coded up yet, so I simply tested
with virtio-pci and verified that this patch does
not break existing drivers.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>