switchdev: introduce switchdev notifier

[firefly-linux-kernel-4.4.55.git] / include / net / switchdev.h

diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 8a6d1641fd9bb8d1c3ddc053c479a9f0531b5b18..7f8d74372d87051645492552d426f3c96a7010a3 100644 (file)
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -11,12 +11,27 @@
 #define _LINUX_SWITCHDEV_H_
 
 #include <linux/netdevice.h>
+#include <linux/notifier.h>
+
+struct netdev_switch_notifier_info {
+       struct net_device *dev;
+};
+
+static inline struct net_device *
+netdev_switch_notifier_info_to_dev(const struct netdev_switch_notifier_info *info)
+{
+       return info->dev;
+}
 
 #ifdef CONFIG_NET_SWITCHDEV
 
 int netdev_switch_parent_id_get(struct net_device *dev,
                                struct netdev_phys_item_id *psid);
 int netdev_switch_port_stp_update(struct net_device *dev, u8 state);
+int register_netdev_switch_notifier(struct notifier_block *nb);
+int unregister_netdev_switch_notifier(struct notifier_block *nb);
+int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
+                                struct netdev_switch_notifier_info *info);
 
 #else
 
@@ -32,6 +47,22 @@ static inline int netdev_switch_port_stp_update(struct net_device *dev,
        return -EOPNOTSUPP;
 }
 
+static inline int register_netdev_switch_notifier(struct notifier_block *nb)
+{
+       return 0;
+}
+
+static inline int unregister_netdev_switch_notifier(struct notifier_block *nb)
+{
+       return 0;
+}
+
+static inline int call_netdev_switch_notifiers(unsigned long val, struct net_device *dev,
+                                              struct netdev_switch_notifier_info *info);
+{
+       return NOTIFY_DONE;
+}
+
 #endif
 
 #endif /* _LINUX_SWITCHDEV_H_ */