net: add tap_has_vnet_hdr() and tap_using_vnet_hdr() APIs

These lamely named functions allow virtio-net to query whether
IFF_VNET_HDR is enabled on a tap interface and inform the tap code
that virtio-net will supply packets with a vnet header.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/net.h b/net.h
index f592ffb290..7078708807 100644
--- a/net.h
+++ b/net.h
@@ -177,4 +177,7 @@ void net_host_device_remove(Monitor *mon, const QDict *qdict);
 
 void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd);
 
+int tap_has_vnet_hdr(VLANClientState *vc);
+void tap_using_vnet_hdr(VLANClientState *vc, int using_vnet_hdr);
+
 #endif