vhost_net: tx batching
authorJason Wang <jasowang@redhat.com>
Wed, 18 Jan 2017 07:02:02 +0000 (15:02 +0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 18 Jan 2017 21:35:30 +0000 (16:35 -0500)
commit0ed005ce02fa0a88e5e6b7b5f7ff452171881610
treec169b416a25aec7f553c9b999771580fadf86452
parent275bf960ac69744430a6725a4ed7f50d36cf1441
vhost_net: tx batching

This patch tries to utilize tuntap rx batching by peeking the tx
virtqueue during transmission, if there's more available buffers in
the virtqueue, set MSG_MORE flag for a hint for backend (e.g tuntap)
to batch the packets.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/vhost/net.c