X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=datapath%2Flinux%2Fcompat%2Finclude%2Flinux%2Fnetdevice.h;h=ba1fc593ec92be6d73a08b95ba79bfa1a327fc8d;hb=a2b7fd3fa66e1b3eddc4dfc437d7d9eec4670cfb;hp=f2ced69f3d19799d442ce7e09b693738086c6460;hpb=5ebaf571f9a3531d06eb52b62ac237ab7292f7b0;p=sliver-openvswitch.git

diff --git a/datapath/linux/compat/include/linux/netdevice.h b/datapath/linux/compat/include/linux/netdevice.h
index f2ced69f3..ba1fc593e 100644
--- a/datapath/linux/compat/include/linux/netdevice.h
+++ b/datapath/linux/compat/include/linux/netdevice.h
@@ -20,6 +20,11 @@ struct net;
 #define to_net_dev(class) container_of(class, struct net_device, NETDEV_DEV_MEMBER)
 #endif
 
+#ifdef HAVE_RHEL_OVS_HOOK
+extern struct sk_buff *(*openvswitch_handle_frame_hook)(struct sk_buff *skb);
+extern int nr_bridges;
+#endif
+
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
 static inline
 struct net *dev_net(const struct net_device *dev)
@@ -84,19 +89,33 @@ extern int skb_checksum_help(struct sk_buff *skb, int);
 extern int skb_checksum_help(struct sk_buff *skb);
 #endif
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36) || \
+    defined HAVE_RHEL_OVS_HOOK
 static inline int netdev_rx_handler_register(struct net_device *dev,
 					     void *rx_handler,
 					     void *rx_handler_data)
 {
+#ifdef HAVE_RHEL_OVS_HOOK
+	rcu_assign_pointer(dev->ax25_ptr, rx_handler_data);
+	nr_bridges++;
+	rcu_assign_pointer(openvswitch_handle_frame_hook, rx_handler_data);
+#else
 	if (dev->br_port)
 		return -EBUSY;
 	rcu_assign_pointer(dev->br_port, rx_handler_data);
+#endif
 	return 0;
 }
 static inline void netdev_rx_handler_unregister(struct net_device *dev)
 {
+#ifdef HAVE_RHEL_OVS_HOOK
+	rcu_assign_pointer(dev->ax25_ptr, NULL);
+
+	if (--nr_bridges <= 0)
+		rcu_assign_pointer(openvswitch_handle_frame_hook, NULL);
+#else
 	rcu_assign_pointer(dev->br_port, NULL);
+#endif
 }
 #endif