"Michael S. Tsirkin" <mst@xxxxxxxxxx> writes: > On Fri, Jan 11, 2013 at 09:18:33AM +1030, Rusty Russell wrote: >> "Michael S. Tsirkin" <mst@xxxxxxxxxx> writes: >> > On Thu, Jan 10, 2013 at 09:00:55PM +1030, Rusty Russell wrote: >> >> Not sure why vhost/net doesn't built a packet and feed it in >> >> netif_rx_ni(). This is what tun seems to do, and with this code it >> >> should be fairly optimal. >> > >> > Because we want to use NAPI. >> >> Not quite what I was asking; it was more a question of why we're using a >> raw socket, when we trivially have a complete skb already which we >> should be able to feed to Linux like any network packet. > > Oh for some reason I thought you were talking about virtio. > I don't really understand what you are saying here - vhost > actually calls out to tun to build and submit the skb. Ah, the fd is tun? Seems a bit indirect; I wonder if there's room for more optimization here... Cheers, Rusty. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
