From: Stefan Fritsch <s...@sfritsch.de> If VIRTIO_NET_F_CTRL_VLAN is not negotiated, do not filter out all VLAN-tagged packets but send them to the guest.
This fixes VLANs with OpenBSD guests (and probably NetBSD, too, because the OpenBSD driver started as a port from NetBSD). Signed-off-by: Stefan Fritsch <s...@sfritsch.de> Signed-off-by: Amos Kong <ak...@redhat.com> --- V2: it's not good to check guest features at reset time, so reset vlan table in setting features --- hw/net/virtio-net.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index 43b4eda..439477b 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -530,6 +530,12 @@ static void virtio_net_set_features(VirtIODevice *vdev, uint32_t features) } vhost_net_ack_features(tap_get_vhost_net(nc->peer), features); } + + if ((1 << VIRTIO_NET_F_CTRL_VLAN) & features) { + memset(n->vlans, 0, MAX_VLAN >> 3); + } else { + memset(n->vlans, 0xff, MAX_VLAN >> 3); + } } static int virtio_net_handle_rx_mode(VirtIONet *n, uint8_t cmd, -- 1.8.5.3