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vhost: fix features ack 

vhost driver in qemu didn't ack features, and this happens
to work because we don't really require any features. However,
it's better not to rely on this. This patch passes features to
vhost as guest acks them.

Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
David L Stevens 2010-03-31 21:20:31 +03:00 committed by Michael S. Tsirkin
parent 8bbd1ce236
commit af4c828e70
1 changed files with 8 additions and 0 deletions
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8
hw/virtio-net.c
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@ -219,6 +219,14 @@ static void virtio_net_set_features(VirtIODevice *vdev, uint32_t features)
(features >> VIRTIO_NET_F_GUEST_ECN) & 1,
(features >> VIRTIO_NET_F_GUEST_UFO) & 1);
}
if (!n->nic->nc.peer ||
n->nic->nc.peer->info->type != NET_CLIENT_TYPE_TAP) {
return;
}
if (!tap_get_vhost_net(n->nic->nc.peer)) {
return;
}
return vhost_net_ack_features(tap_get_vhost_net(n->nic->nc.peer), features);
}
static int virtio_net_handle_rx_mode(VirtIONet *n, uint8_t cmd,