bridge: call netdev_sw_port_stp_update when bridge port STP status changes

To notify switch driver of change in STP state of bridge port, add new
.ndo op and provide switchdev wrapper func to call ndo op. Use it in bridge
code then.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 12 insertions, 0 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3603f31e78f3..29c92ee9ed56 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1024,6 +1024,9 @@ typedef u16 (*select_queue_fallback_t)(struct net_device *dev,
  *      Called to get an ID of the switch chip this port is part of.
  *      If driver implements this, it indicates that it represents a port
  *      of a switch chip.
+ * int (*ndo_switch_port_stp_update)(struct net_device *dev, u8 state);
+ *      Called to notify switch device port of bridge port STP
+ *      state change.
  */
 struct net_device_ops {
         int                     (*ndo_init)(struct net_device *dev);
@@ -1180,6 +1183,8 @@ struct net_device_ops {
 #ifdef CONFIG_NET_SWITCHDEV
         int                     (*ndo_switch_parent_id_get)(struct net_device *dev,
                                                             struct netdev_phys_item_id *psid);
+        int                     (*ndo_switch_port_stp_update)(struct net_device *dev,
+                                                              u8 state);
 #endif
 };
 
diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 7a52360a1446..8a6d1641fd9b 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -16,6 +16,7 @@
 
 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);
 
 #else
 
@@ -25,6 +26,12 @@ static inline int netdev_switch_parent_id_get(struct net_device *dev,
         return -EOPNOTSUPP;
 }
 
+static inline int netdev_switch_port_stp_update(struct net_device *dev,
+                                                u8 state)
+{
+        return -EOPNOTSUPP;
+}
+
 #endif
 
 #endif /* _LINUX_SWITCHDEV_H_ */