virtio-net: Add USO flags to vhost support.

New features are subject to check with vhost-user and vdpa.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

hw/net/vhost_net.c

@@ -78,6 +78,9 @@ static const int user_feature_bits[] = {
     VIRTIO_F_RING_RESET,
     VIRTIO_NET_F_RSS,
     VIRTIO_NET_F_HASH_REPORT,
+    VIRTIO_NET_F_GUEST_USO4,
+    VIRTIO_NET_F_GUEST_USO6,
+    VIRTIO_NET_F_HOST_USO,
 
     /* This bit implies RARP isn't sent by QEMU out of band */
     VIRTIO_NET_F_GUEST_ANNOUNCE,

net/vhost-vdpa.c

@@ -75,11 +75,14 @@ const int vdpa_feature_bits[] = {
     VIRTIO_NET_F_GUEST_TSO4,
     VIRTIO_NET_F_GUEST_TSO6,
     VIRTIO_NET_F_GUEST_UFO,
+    VIRTIO_NET_F_GUEST_USO4,
+    VIRTIO_NET_F_GUEST_USO6,
     VIRTIO_NET_F_HASH_REPORT,
     VIRTIO_NET_F_HOST_ECN,
     VIRTIO_NET_F_HOST_TSO4,
     VIRTIO_NET_F_HOST_TSO6,
     VIRTIO_NET_F_HOST_UFO,
+    VIRTIO_NET_F_HOST_USO,
     VIRTIO_NET_F_MQ,
     VIRTIO_NET_F_MRG_RXBUF,
     VIRTIO_NET_F_MTU,