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Commit 8ae5bcdc authored by Vivien Didelot's avatar Vivien Didelot Committed by David S. Miller
Browse files

net: dsa: add MDB notifier 



Add two new DSA_NOTIFIER_MDB_ADD and DSA_NOTIFIER_MDB_DEL events to
notify not only a single switch, but all switches of a the fabric when
an MDB entry is added or removed.

For the moment, keep the current behavior and ignore other switches.

Signed-off-by: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 685fb6a4

net/dsa/dsa_priv.h

+10 −0
Original line number Diff line number Diff line
@@ -22,6 +22,8 @@ enum { 
	DSA_NOTIFIER_BRIDGE_LEAVE,

	DSA_NOTIFIER_FDB_ADD,

	DSA_NOTIFIER_FDB_DEL,

	DSA_NOTIFIER_MDB_ADD,

	DSA_NOTIFIER_MDB_DEL,

};



/* DSA_NOTIFIER_AGEING_TIME */
@@ -46,6 +48,14 @@ struct dsa_notifier_fdb_info { 
	int port;

};



/* DSA_NOTIFIER_MDB_* */

struct dsa_notifier_mdb_info {

	const struct switchdev_obj_port_mdb *mdb;

	struct switchdev_trans *trans;

	int sw_index;

	int port;

};



struct dsa_device_ops {

	struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev);

	struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev,

net/dsa/port.c

+13 −16
Original line number Diff line number Diff line
@@ -188,29 +188,26 @@ int dsa_port_mdb_add(struct dsa_port *dp, 
		     const struct switchdev_obj_port_mdb *mdb,

		     struct switchdev_trans *trans)

{

	struct dsa_switch *ds = dp->ds;



	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, dp->index, mdb, trans);

	}



	ds->ops->port_mdb_add(ds, dp->index, mdb, trans);

	struct dsa_notifier_mdb_info info = {

		.sw_index = dp->ds->index,

		.port = dp->index,

		.trans = trans,

		.mdb = mdb,

	};



	return 0;

	return dsa_port_notify(dp, DSA_NOTIFIER_MDB_ADD, &info);

}



int dsa_port_mdb_del(struct dsa_port *dp,

		     const struct switchdev_obj_port_mdb *mdb)

{

	struct dsa_switch *ds = dp->ds;



	if (ds->ops->port_mdb_del)

		return ds->ops->port_mdb_del(ds, dp->index, mdb);

	struct dsa_notifier_mdb_info info = {

		.sw_index = dp->ds->index,

		.port = dp->index,

		.mdb = mdb,

	};



	return -EOPNOTSUPP;

	return dsa_port_notify(dp, DSA_NOTIFIER_MDB_DEL, &info);

}



int dsa_port_mdb_dump(struct dsa_port *dp, struct switchdev_obj_port_mdb *mdb,

net/dsa/switch.c

+43 −0
Original line number Diff line number Diff line
@@ -121,6 +121,43 @@ static int dsa_switch_fdb_del(struct dsa_switch *ds, 
	return ds->ops->port_fdb_del(ds, info->port, fdb);

}



static int dsa_switch_mdb_add(struct dsa_switch *ds,

			      struct dsa_notifier_mdb_info *info)

{

	const struct switchdev_obj_port_mdb *mdb = info->mdb;

	struct switchdev_trans *trans = info->trans;



	/* Do not care yet about other switch chips of the fabric */

	if (ds->index != info->sw_index)

		return 0;



	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, info->port, mdb, trans);

	}



	ds->ops->port_mdb_add(ds, info->port, mdb, trans);



	return 0;

}



static int dsa_switch_mdb_del(struct dsa_switch *ds,

			      struct dsa_notifier_mdb_info *info)

{

	const struct switchdev_obj_port_mdb *mdb = info->mdb;



	/* Do not care yet about other switch chips of the fabric */

	if (ds->index != info->sw_index)

		return 0;



	if (!ds->ops->port_mdb_del)

		return -EOPNOTSUPP;



	return ds->ops->port_mdb_del(ds, info->port, mdb);

}



static int dsa_switch_event(struct notifier_block *nb,

			    unsigned long event, void *info)

{
@@ -143,6 +180,12 @@ static int dsa_switch_event(struct notifier_block *nb, 
	case DSA_NOTIFIER_FDB_DEL:

		err = dsa_switch_fdb_del(ds, info);

		break;

	case DSA_NOTIFIER_MDB_ADD:

		err = dsa_switch_mdb_add(ds, info);

		break;

	case DSA_NOTIFIER_MDB_DEL:

		err = dsa_switch_mdb_del(ds, info);

		break;

	default:

		err = -EOPNOTSUPP;

		break;