openvswitch: Use dev_queue_xmit for vport send.

[firefly-linux-kernel-4.4.55.git] / net / openvswitch / vport.c

diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 12a36ac21edaaeddf50442408a1ea27aca975fa0..ef19d0b77d13fd4f3f1e4bef987dd2adbcca3760 100644 (file)
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -537,3 +537,33 @@ int ovs_vport_get_egress_tun_info(struct vport *vport, struct sk_buff *skb,
 
        return vport->ops->get_egress_tun_info(vport, skb, upcall);
 }
+
+static unsigned int packet_length(const struct sk_buff *skb)
+{
+       unsigned int length = skb->len - ETH_HLEN;
+
+       if (skb->protocol == htons(ETH_P_8021Q))
+               length -= VLAN_HLEN;
+
+       return length;
+}
+
+void ovs_vport_send(struct vport *vport, struct sk_buff *skb)
+{
+       int mtu = vport->dev->mtu;
+
+       if (unlikely(packet_length(skb) > mtu && !skb_is_gso(skb))) {
+               net_warn_ratelimited("%s: dropped over-mtu packet: %d > %d\n",
+                                    vport->dev->name,
+                                    packet_length(skb), mtu);
+               vport->dev->stats.tx_errors++;
+               goto drop;
+       }
+
+       skb->dev = vport->dev;
+       vport->ops->send(skb);
+       return;
+
+drop:
+       kfree_skb(skb);
+}