#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)
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
#include <linux/netdevice.h>
#include <linux/if_vlan.h>
+#ifdef HAVE_RHEL_OVS_HOOK
+int nr_bridges = 0;
+#endif
+
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)
#ifndef HAVE_CAN_CHECKSUM_PROTOCOL
static bool can_checksum_protocol(unsigned long features, __be16 protocol)
#define vlan_tso true
#endif
-#ifdef HAVE_RHEL_OVS_HOOK
-static atomic_t nr_bridges = ATOMIC_INIT(0);
-
-extern struct sk_buff *(*openvswitch_handle_frame_hook)(struct sk_buff *skb);
-#endif
-
static void netdev_port_receive(struct vport *vport, struct sk_buff *skb);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
}
rtnl_lock();
-#ifdef HAVE_RHEL_OVS_HOOK
- rcu_assign_pointer(netdev_vport->dev->ax25_ptr, vport);
- atomic_inc(&nr_bridges);
- rcu_assign_pointer(openvswitch_handle_frame_hook, netdev_frame_hook);
-#else
err = netdev_rx_handler_register(netdev_vport->dev, netdev_frame_hook,
vport);
if (err)
goto error_unlock;
-#endif
dev_set_promiscuity(netdev_vport->dev, 1);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
netdev_init();
return vport;
-#ifndef HAVE_RHEL_OVS_HOOK
error_unlock:
-#endif
rtnl_unlock();
error_put:
dev_put(netdev_vport->dev);
struct netdev_vport *netdev_vport = container_of(rcu,
struct netdev_vport, rcu);
-#ifdef HAVE_RHEL_OVS_HOOK
- rcu_assign_pointer(netdev_vport->dev->ax25_ptr, NULL);
-
- if (atomic_dec_and_test(&nr_bridges))
- rcu_assign_pointer(openvswitch_handle_frame_hook, NULL);
-#endif
dev_put(netdev_vport->dev);
ovs_vport_free(vport_from_priv(netdev_vport));
}