On Mon, Oct 02, 2023 at 05:13:26PM -0400, Stefan Hajnoczi wrote:
> One more question:
>
> Why is the disabled state not needed by regular (non-vhost) virtio-net
> devices?
Tap does the same - it purges queued packets:
int tap_disable(NetClientState *nc)
{
TAPState *s = DO_UPCAST(TAPState, nc, nc);
int ret;
if (s->enabled == 0) {
return 0;
} else {
ret = tap_fd_disable(s->fd);
if (ret == 0) {
qemu_purge_queued_packets(nc);
s->enabled = false;
tap_update_fd_handler(s);
}
return ret;
}
}
what about non tap backends? I suspect they just aren't
used widely with multiqueue so no one noticed.
--
MST
