net: dsa: add MDB support

Add SWITCHDEV_OBJ_ID_PORT_MDB support to the DSA layer.

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

1 files changed, 55 insertions, 0 deletions

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 9f6c2a20f6ff..9ecbe787f102 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -290,6 +290,50 @@ static int dsa_slave_port_fdb_dump(struct net_device *dev,
         return -EOPNOTSUPP;
 }
 
+static int dsa_slave_port_mdb_add(struct net_device *dev,
+                                  const struct switchdev_obj_port_mdb *mdb,
+                                  struct switchdev_trans *trans)
+{
+        struct dsa_slave_priv *p = netdev_priv(dev);
+        struct dsa_switch *ds = p->parent;
+
+        if (switchdev_trans_ph_prepare(trans)) {
+                if (!ds->ops->port_mdb_prepare || !ds->ops->port_mdb_add)
+                        return -EOPNOTSUPP;
+
+                return ds->ops->port_mdb_prepare(ds, p->port, mdb, trans);
+        }
+
+        ds->ops->port_mdb_add(ds, p->port, mdb, trans);
+
+        return 0;
+}
+
+static int dsa_slave_port_mdb_del(struct net_device *dev,
+                                  const struct switchdev_obj_port_mdb *mdb)
+{
+        struct dsa_slave_priv *p = netdev_priv(dev);
+        struct dsa_switch *ds = p->parent;
+
+        if (ds->ops->port_mdb_del)
+                return ds->ops->port_mdb_del(ds, p->port, mdb);
+
+        return -EOPNOTSUPP;
+}
+
+static int dsa_slave_port_mdb_dump(struct net_device *dev,
+                                   struct switchdev_obj_port_mdb *mdb,
+                                   switchdev_obj_dump_cb_t *cb)
+{
+        struct dsa_slave_priv *p = netdev_priv(dev);
+        struct dsa_switch *ds = p->parent;
+
+        if (ds->ops->port_mdb_dump)
+                return ds->ops->port_mdb_dump(ds, p->port, mdb, cb);
+
+        return -EOPNOTSUPP;
+}
+
 static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
         struct dsa_slave_priv *p = netdev_priv(dev);
@@ -412,6 +456,10 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
                                              SWITCHDEV_OBJ_PORT_FDB(obj),
                                              trans);
                 break;
+        case SWITCHDEV_OBJ_ID_PORT_MDB:
+                err = dsa_slave_port_mdb_add(dev, SWITCHDEV_OBJ_PORT_MDB(obj),
+                                             trans);
+                break;
         case SWITCHDEV_OBJ_ID_PORT_VLAN:
                 err = dsa_slave_port_vlan_add(dev,
                                               SWITCHDEV_OBJ_PORT_VLAN(obj),
@@ -435,6 +483,9 @@ static int dsa_slave_port_obj_del(struct net_device *dev,
                 err = dsa_slave_port_fdb_del(dev,
                                              SWITCHDEV_OBJ_PORT_FDB(obj));
                 break;
+        case SWITCHDEV_OBJ_ID_PORT_MDB:
+                err = dsa_slave_port_mdb_del(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
+                break;
         case SWITCHDEV_OBJ_ID_PORT_VLAN:
                 err = dsa_slave_port_vlan_del(dev,
                                               SWITCHDEV_OBJ_PORT_VLAN(obj));
@@ -459,6 +510,10 @@ static int dsa_slave_port_obj_dump(struct net_device *dev,
                                               SWITCHDEV_OBJ_PORT_FDB(obj),
                                               cb);
                 break;
+        case SWITCHDEV_OBJ_ID_PORT_MDB:
+                err = dsa_slave_port_mdb_dump(dev, SWITCHDEV_OBJ_PORT_MDB(obj),
+                                              cb);
+                break;
         case SWITCHDEV_OBJ_ID_PORT_VLAN:
                 err = dsa_slave_port_vlan_dump(dev,
                                                SWITCHDEV_OBJ_PORT_VLAN(obj),