datapath: Disable large receive offload.

[sliver-openvswitch.git] / datapath / datapath.c

diff --git a/datapath/datapath.c b/datapath/datapath.c
index 76569f5..f8a2aa3 100644 (file)
--- a/datapath/datapath.c
+++ b/datapath/datapath.c
@@ -358,6 +358,7 @@ static int new_nbp(struct datapath *dp, struct net_device *dev, int port_no)
                 * in dp_frame_hook().  In turn dp_frame_hook() can reject them
                 * back to network stack, but that's a waste of time. */
        }
+       dev_disable_lro(dev);
        rcu_assign_pointer(dp->ports[port_no], p);
        list_add_rcu(&p->node, &dp->port_list);
        dp->n_ports++;
@@ -505,6 +506,11 @@ out:
 static void
 do_port_input(struct net_bridge_port *p, struct sk_buff *skb) 
 {
+       /* LRO isn't suitable for bridging.  We turn it off but make sure
+        * that it wasn't reactivated. */
+       if (skb_warn_if_lro(skb))
+               return;
+
        /* Make our own copy of the packet.  Otherwise we will mangle the
         * packet for anyone who came before us (e.g. tcpdump via AF_PACKET).
         * (No one comes after us, since we tell handle_bridge() that we took