On Tue, Mar 12, 2013 at 11:17:16AM +0100, Michal Privoznik wrote:
It's been a while since qemu added support for multiqueue virtio-net. For more info follow [1]. From usage POV, libvirt is required to pass multiple FDs:
qemu-kvm -netdev tap,id=hn0,fds=x:y:...:z,vhost=on,vhostfds=a:b:...:c -device virtio-net-pci,netdev=hn0,vectors=N ...
where count(x:...:z) = M. We are strongly advised to use 1:1 ratio => M=N.
You seem to be saying that the number of FDs we pass though be the same as the vectors=N setting you show. I thought that M:N referred to the ratio of tap FDs vs vhost FDs. Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|