openvswitch: allow L3 netdev ports

Allow ARPHRD_NONE interfaces to be added to ovs bridge.

Based on previous versions by Lorand Jakab and Simon Horman.

Signed-off-by: Lorand Jakab <lojakab@cisco.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Pravin B Shelar <pshelar@ovn.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index e825753..0389398 100644 (file)
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -57,8 +57,10 @@ static void netdev_port_receive(struct sk_buff *skb)
        if (unlikely(!skb))
                return;
 
-       skb_push(skb, ETH_HLEN);
-       skb_postpush_rcsum(skb, skb->data, ETH_HLEN);
+       if (skb->dev->type == ARPHRD_ETHER) {
+               skb_push(skb, ETH_HLEN);
+               skb_postpush_rcsum(skb, skb->data, ETH_HLEN);
+       }
        ovs_vport_receive(vport, skb, skb_tunnel_info(skb));
        return;
 error:
@@ -97,7 +99,8 @@ struct vport *ovs_netdev_link(struct vport *vport, const char *name)
        }
 
        if (vport->dev->flags & IFF_LOOPBACK ||
-           vport->dev->type != ARPHRD_ETHER ||
+           (vport->dev->type != ARPHRD_ETHER &&
+            vport->dev->type != ARPHRD_NONE) ||
            ovs_is_internal_dev(vport->dev)) {
                err = -EINVAL;
                goto error_put;