On Wed, Feb 18, 2009 at 10:08:00PM +1030, Rusty Russell wrote: > > 2) Direct NIC attachment This is particularly interesting with SR-IOV or > other multiqueue nics, but for boutique cases or benchmarks, could be for > normal NICs. So far I have some very sketched-out patches: for the > attached nic dev_alloc_skb() gets an skb from the guest (which supplies > them via some kind of AIO interface), and a branch in netif_receive_skb() > which returned it to the guest. This bypasses all firewalling in the > host though; we're basically having the guest process drive the NIC > directly. Hi Rusty, Can I clarify that the idea with utilising SR-IOV would be to assign virtual functions to guests? That is, something conceptually similar to PCI pass-through in Xen (although I'm not sure that anyone has virtual function pass-through working yet). If so, wouldn't this also be useful on machines that have multiple NICs? -- Simon Horman VA Linux Systems Japan K.K., Sydney, Australia Satellite Office H: www.vergenet.net/~horms/ W: www.valinux.co.jp/en -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
