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Commit 7df8fbdd authored by Vivien Didelot's avatar Vivien Didelot Committed by David S. Miller
Browse files

net: dsa: mv88e6xxx: add MDB support 



Add support for the MDB operations. This consists of
loading/purging/dumping multicast addresses for a given port in the ATU.

Signed-off-by: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 83dabd1f

drivers/net/dsa/mv88e6xxx/chip.c

+65 −0
Original line number Diff line number Diff line
@@ -2240,6 +2240,15 @@ static int mv88e6xxx_port_db_dump_fid(struct mv88e6xxx_chip *chip, 
				fdb->ndm_state = NUD_NOARP;

			else

				fdb->ndm_state = NUD_REACHABLE;

		} else if (obj->id == SWITCHDEV_OBJ_ID_PORT_MDB) {

			struct switchdev_obj_port_mdb *mdb;



			if (!is_multicast_ether_addr(addr.mac))

				continue;



			mdb = SWITCHDEV_OBJ_PORT_MDB(obj);

			mdb->vid = vid;

			ether_addr_copy(mdb->addr, addr.mac);

		} else {

			return -EOPNOTSUPP;

		}
@@ -3994,6 +4003,58 @@ static const char *mv88e6xxx_drv_probe(struct device *dsa_dev, 
	return NULL;

}



static int mv88e6xxx_port_mdb_prepare(struct dsa_switch *ds, int port,

				      const struct switchdev_obj_port_mdb *mdb,

				      struct switchdev_trans *trans)

{

	/* We don't need any dynamic resource from the kernel (yet),

	 * so skip the prepare phase.

	 */



	return 0;

}



static void mv88e6xxx_port_mdb_add(struct dsa_switch *ds, int port,

				   const struct switchdev_obj_port_mdb *mdb,

				   struct switchdev_trans *trans)

{

	struct mv88e6xxx_chip *chip = ds_to_priv(ds);



	mutex_lock(&chip->reg_lock);

	if (mv88e6xxx_port_db_load_purge(chip, port, mdb->addr, mdb->vid,

					 GLOBAL_ATU_DATA_STATE_MC_STATIC))

		netdev_err(ds->ports[port].netdev, "failed to load multicast MAC address\n");

	mutex_unlock(&chip->reg_lock);

}



static int mv88e6xxx_port_mdb_del(struct dsa_switch *ds, int port,

				  const struct switchdev_obj_port_mdb *mdb)

{

	struct mv88e6xxx_chip *chip = ds_to_priv(ds);

	int err;



	mutex_lock(&chip->reg_lock);

	err = mv88e6xxx_port_db_load_purge(chip, port, mdb->addr, mdb->vid,

					   GLOBAL_ATU_DATA_STATE_UNUSED);

	mutex_unlock(&chip->reg_lock);



	return err;

}



static int mv88e6xxx_port_mdb_dump(struct dsa_switch *ds, int port,

				   struct switchdev_obj_port_mdb *mdb,

				   int (*cb)(struct switchdev_obj *obj))

{

	struct mv88e6xxx_chip *chip = ds_to_priv(ds);

	int err;



	mutex_lock(&chip->reg_lock);

	err = mv88e6xxx_port_db_dump(chip, port, &mdb->obj, cb);

	mutex_unlock(&chip->reg_lock);



	return err;

}



static struct dsa_switch_ops mv88e6xxx_switch_ops = {

	.probe			= mv88e6xxx_drv_probe,

	.get_tag_protocol	= mv88e6xxx_get_tag_protocol,
@@ -4029,6 +4090,10 @@ static struct dsa_switch_ops mv88e6xxx_switch_ops = { 
	.port_fdb_add           = mv88e6xxx_port_fdb_add,

	.port_fdb_del           = mv88e6xxx_port_fdb_del,

	.port_fdb_dump          = mv88e6xxx_port_fdb_dump,

	.port_mdb_prepare       = mv88e6xxx_port_mdb_prepare,

	.port_mdb_add           = mv88e6xxx_port_mdb_add,

	.port_mdb_del           = mv88e6xxx_port_mdb_del,

	.port_mdb_dump          = mv88e6xxx_port_mdb_dump,

};



static int mv88e6xxx_register_switch(struct mv88e6xxx_chip *chip,