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
