On 2019/10/30 下午2:17, Tiwei Bie wrote: > On Tue, Oct 29, 2019 at 06:51:32PM +0800, Jason Wang wrote: >> On 2019/10/29 下午6:17, Tiwei Bie wrote: >>> This patch adds the network control vq support in vhost-mdev. >>> A vhost-mdev specific op is introduced to allow parent drivers >>> to handle the network control commands come from userspace. >> Probably work for userspace driver but not kernel driver. > Exactly. This is only for userspace. > > I got your point now. In virtio-mdev kernel driver case, > the ctrl-vq can be special as well. > Then maybe it's better to introduce vhost-mdev-net on top? Looking at the other type of virtio device: - console have two control virtqueues when multiqueue port is enabled - SCSI has controlq + eventq - GPU has controlq - Crypto device has one controlq - Socket has eventq ... Thanks