VIRTIO_NET_RSS_HASH_TYPE_TCPv6
if (vi->rss_hash_types_saved & VIRTIO_NET_RSS_HASH_TYPE_TCPv6) {
new_hashtypes &= ~(VIRTIO_NET_RSS_HASH_TYPE_IPv6 | VIRTIO_NET_RSS_HASH_TYPE_TCPv6);
| (is_l4 ? VIRTIO_NET_RSS_HASH_TYPE_TCPv6 : 0);