Simon Horman wrote: > 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? > Yes, and we have successfully get it run with assigning VF to guest in both Xen & KVM, but we are still working on pushing those patches out since it needs Linux PCI subsystem support & driver support. Thx, eddie-- 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
