net: dsa: introduce bridge notifier

A slave device will now notify the switch fabric once its port is
bridged or unbridged, instead of calling directly its switch operations.

This code allows propagating cross-chip bridging events in the fabric.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/net/dsa.h b/include/net/dsa.h
index ac4ea7c3a102..e9c940c8936f 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -268,6 +268,16 @@ struct switchdev_obj_port_fdb;
 struct switchdev_obj_port_mdb;
 struct switchdev_obj_port_vlan;
 
+#define DSA_NOTIFIER_BRIDGE_JOIN                1
+#define DSA_NOTIFIER_BRIDGE_LEAVE               2
+
+/* DSA_NOTIFIER_BRIDGE_* */
+struct dsa_notifier_bridge_info {
+        struct net_device *br;
+        int sw_index;
+        int port;
+};
+
 struct dsa_switch_ops {
         /*
          * Probing and setup.