On Mon, 2012-12-03 at 12:58 +0200, Michael S. Tsirkin wrote: > Add RFS support to virtio network device. > Add a new feature flag VIRTIO_NET_F_RFS for this feature, a new > configuration field max_virtqueue_pairs to detect supported number of > virtqueues as well as a new command VIRTIO_NET_CTRL_RFS to program > packet steering for unidirectional protocols. [...] > +Programming of the receive flow classificator is implicit. > + Transmitting a packet of a specific flow on transmitqX will cause incoming > + packets for this flow to be steered to receiveqX. > + For uni-directional protocols, or where no packets have been transmitted > + yet, device will steer a packet to a random queue out of the specified > + receiveq0..receiveqn. [...]
It doesn't seem like this is usable to implement accelerated RFS in the guest, though perhaps that doesn't matter. On the host side, presumably you'll want vhost_net to do the equivalent of sock_rps_record_flow() - only without a socket? But in any case, that requires an rxhash, so I don't see how this is supposed to work. Ben. -- Ben Hutchings, Staff Engineer, Solarflare Not speaking for my employer; that's the marketing department's job. They asked us to note that Solarflare product names are trademarked. _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
