swdevice: add new apis to set and del bridge port attributes

This patch adds two new api's netdev_switch_port_bridge_setlink
and netdev_switch_port_bridge_dellink to offload bridge port attributes
to switch port

(The names of the apis look odd with 'switch_port_bridge',
but am more inclined to change the prefix of the api to something else.
Will take any suggestions).

The api's look at the NETIF_F_HW_SWITCH_OFFLOAD feature flag to
pass bridge port attributes to the port device.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 36 insertions, 1 deletions

diff --git a/include/net/switchdev.h b/include/net/switchdev.h
index 205e63698da9..cfcdac2e5d25 100644
--- a/include/net/switchdev.h
+++ b/include/net/switchdev.h
@@ -43,7 +43,14 @@ 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);
-
+int netdev_switch_port_bridge_setlink(struct net_device *dev,
+                                struct nlmsghdr *nlh, u16 flags);
+int netdev_switch_port_bridge_dellink(struct net_device *dev,
+                                struct nlmsghdr *nlh, u16 flags);
+int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
+                                               struct nlmsghdr *nlh, u16 flags);
+int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
+                                               struct nlmsghdr *nlh, u16 flags);
 #else
 
 static inline int netdev_switch_parent_id_get(struct net_device *dev,
@@ -74,6 +81,34 @@ static inline int call_netdev_switch_notifiers(unsigned long val, struct net_dev
         return NOTIFY_DONE;
 }
 
+static inline int netdev_switch_port_bridge_setlink(struct net_device *dev,
+                                                    struct nlmsghdr *nlh,
+                                                    u16 flags)
+{
+        return -EOPNOTSUPP;
+}
+
+static inline int netdev_switch_port_bridge_dellink(struct net_device *dev,
+                                                    struct nlmsghdr *nlh,
+                                                    u16 flags)
+{
+        return -EOPNOTSUPP;
+}
+
+static inline int ndo_dflt_netdev_switch_port_bridge_dellink(struct net_device *dev,
+                                                        struct nlmsghdr *nlh,
+                                                        u16 flags)
+{
+        return 0;
+}
+
+static inline int ndo_dflt_netdev_switch_port_bridge_setlink(struct net_device *dev,
+                                                        struct nlmsghdr *nlh,
+                                                        u16 flags)
+{
+        return 0;
+}
+
 #endif
 
 #endif /* _LINUX_SWITCHDEV_H_ */