107 	struct dsa_port *dp;  in dsa_tree_lag_find()  local
109 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_lag_find()
110 		if (dsa_port_lag_dev_get(dp) == lag_dev)  in dsa_tree_lag_find()
111 			return dp->lag;  in dsa_tree_lag_find()
119 	struct dsa_port *dp;  in dsa_tree_bridge_find()  local
121 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_bridge_find()
122 		if (dsa_port_bridge_dev_get(dp) == br)  in dsa_tree_bridge_find()
123 			return dp->bridge;  in dsa_tree_bridge_find()
182 	struct dsa_port *dp;  in dsa_switch_find()  local
188 		list_for_each_entry(dp, &dst->ports, list) {  in dsa_switch_find()
189 			if (dp->ds->index != sw_index)  in dsa_switch_find()
192 			return dp->ds;  in dsa_switch_find()
278 	struct dsa_port *dp;  in dsa_tree_find_port_by_node()  local
280 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_find_port_by_node()
281 		if (dp->dn == dn)  in dsa_tree_find_port_by_node()
282 			return dp;  in dsa_tree_find_port_by_node()
287 static struct dsa_link *dsa_link_touch(struct dsa_port *dp,  in dsa_link_touch()  argument
290 	struct dsa_switch *ds = dp->ds;  in dsa_link_touch()
297 		if (dl->dp == dp && dl->link_dp == link_dp)  in dsa_link_touch()
304 	dl->dp = dp;  in dsa_link_touch()
313 static bool dsa_port_setup_routing_table(struct dsa_port *dp)  in dsa_port_setup_routing_table()  argument
315 	struct dsa_switch *ds = dp->ds;  in dsa_port_setup_routing_table()
317 	struct device_node *dn = dp->dn;  in dsa_port_setup_routing_table()
330 		dl = dsa_link_touch(dp, link_dp);  in dsa_port_setup_routing_table()
343 	struct dsa_port *dp;  in dsa_tree_setup_routing_table()  local
345 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_routing_table()
346 		if (dsa_port_is_dsa(dp)) {  in dsa_tree_setup_routing_table()
347 			complete = dsa_port_setup_routing_table(dp);  in dsa_tree_setup_routing_table()
358 	struct dsa_port *dp;  in dsa_tree_find_first_cpu()  local
360 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_find_first_cpu()
361 		if (dsa_port_is_cpu(dp))  in dsa_tree_find_first_cpu()
362 			return dp;  in dsa_tree_find_first_cpu()
386 	struct dsa_port *cpu_dp, *dp;  in dsa_tree_setup_default_cpu()  local
394 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_default_cpu()
395 		if (dp->cpu_dp)  in dsa_tree_setup_default_cpu()
398 		if (dsa_port_is_user(dp) || dsa_port_is_dsa(dp))  in dsa_tree_setup_default_cpu()
399 			dp->cpu_dp = cpu_dp;  in dsa_tree_setup_default_cpu()
430 	struct dsa_port *preferred_cpu_dp, *cpu_dp, *dp;  in dsa_tree_setup_cpu_ports()  local
441 		dsa_switch_for_each_port(dp, cpu_dp->ds) {  in dsa_tree_setup_cpu_ports()
443 			if (dp->cpu_dp)  in dsa_tree_setup_cpu_ports()
446 			if (dsa_port_is_user(dp) || dsa_port_is_dsa(dp))  in dsa_tree_setup_cpu_ports()
447 				dp->cpu_dp = cpu_dp;  in dsa_tree_setup_cpu_ports()
456 	struct dsa_port *dp;  in dsa_tree_teardown_cpu_ports()  local
458 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_teardown_cpu_ports()
459 		if (dsa_port_is_user(dp) || dsa_port_is_dsa(dp))  in dsa_tree_teardown_cpu_ports()
460 			dp->cpu_dp = NULL;  in dsa_tree_teardown_cpu_ports()
463 static int dsa_port_setup(struct dsa_port *dp)  in dsa_port_setup()  argument
466 	struct dsa_switch *ds = dp->ds;  in dsa_port_setup()
470 	if (dp->setup)  in dsa_port_setup()
473 	err = dsa_port_devlink_setup(dp);  in dsa_port_setup()
477 	switch (dp->type) {  in dsa_port_setup()
479 		dsa_port_disable(dp);  in dsa_port_setup()
482 		if (dp->dn) {  in dsa_port_setup()
483 			err = dsa_shared_port_link_register_of(dp);  in dsa_port_setup()
490 				 dp->index);  in dsa_port_setup()
493 		err = dsa_port_enable(dp, NULL);  in dsa_port_setup()
500 		if (dp->dn) {  in dsa_port_setup()
501 			err = dsa_shared_port_link_register_of(dp);  in dsa_port_setup()
508 				 dp->index);  in dsa_port_setup()
511 		err = dsa_port_enable(dp, NULL);  in dsa_port_setup()
518 		of_get_mac_address(dp->dn, dp->mac);  in dsa_port_setup()
519 		err = dsa_user_create(dp);  in dsa_port_setup()
524 		dsa_port_disable(dp);  in dsa_port_setup()
526 		dsa_shared_port_link_unregister_of(dp);  in dsa_port_setup()
528 		dsa_port_devlink_teardown(dp);  in dsa_port_setup()
532 	dp->setup = true;  in dsa_port_setup()
537 static void dsa_port_teardown(struct dsa_port *dp)  in dsa_port_teardown()  argument
539 	if (!dp->setup)  in dsa_port_teardown()
542 	switch (dp->type) {  in dsa_port_teardown()
546 		dsa_port_disable(dp);  in dsa_port_teardown()
547 		if (dp->dn)  in dsa_port_teardown()
548 			dsa_shared_port_link_unregister_of(dp);  in dsa_port_teardown()
551 		dsa_port_disable(dp);  in dsa_port_teardown()
552 		if (dp->dn)  in dsa_port_teardown()
553 			dsa_shared_port_link_unregister_of(dp);  in dsa_port_teardown()
556 		if (dp->user) {  in dsa_port_teardown()
557 			dsa_user_destroy(dp->user);  in dsa_port_teardown()
558 			dp->user = NULL;  in dsa_port_teardown()
563 	dsa_port_devlink_teardown(dp);  in dsa_port_teardown()
565 	dp->setup = false;  in dsa_port_teardown()
568 static int dsa_port_setup_as_unused(struct dsa_port *dp)  in dsa_port_setup_as_unused()  argument
570 	dp->type = DSA_PORT_TYPE_UNUSED;  in dsa_port_setup_as_unused()
571 	return dsa_port_setup(dp);  in dsa_port_setup_as_unused()
721 	struct dsa_port *dp;  in dsa_tree_teardown_ports()  local
723 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_teardown_ports()
724 		if (dsa_port_is_user(dp) || dsa_port_is_unused(dp))  in dsa_tree_teardown_ports()
725 			dsa_port_teardown(dp);  in dsa_tree_teardown_ports()
729 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_teardown_ports()
730 		if (dsa_port_is_dsa(dp) || dsa_port_is_cpu(dp))  in dsa_tree_teardown_ports()
731 			dsa_port_teardown(dp);  in dsa_tree_teardown_ports()
736 	struct dsa_port *dp;  in dsa_tree_teardown_switches()  local
738 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_teardown_switches()
739 		dsa_switch_teardown(dp->ds);  in dsa_tree_teardown_switches()
745 	struct dsa_port *dp;  in dsa_tree_setup_ports()  local
748 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_ports()
749 		if (dsa_port_is_dsa(dp) || dsa_port_is_cpu(dp)) {  in dsa_tree_setup_ports()
750 			err = dsa_port_setup(dp);  in dsa_tree_setup_ports()
756 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_ports()
757 		if (dsa_port_is_user(dp) || dsa_port_is_unused(dp)) {  in dsa_tree_setup_ports()
758 			err = dsa_port_setup(dp);  in dsa_tree_setup_ports()
760 				err = dsa_port_setup_as_unused(dp);  in dsa_tree_setup_ports()
777 	struct dsa_port *dp;  in dsa_tree_setup_switches()  local
780 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_switches()
781 		err = dsa_switch_setup(dp->ds);  in dsa_tree_setup_switches()
842 	struct dsa_port *dp;  in dsa_tree_setup_lags()  local
844 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_lags()
845 		if (dp->ds->num_lag_ids > len)  in dsa_tree_setup_lags()
846 			len = dp->ds->num_lag_ids;  in dsa_tree_setup_lags()
992 	struct dsa_port *dp;  in dsa_tree_change_tag_proto()  local
1003 	dsa_tree_for_each_user_port(dp, dst) {  in dsa_tree_change_tag_proto()
1004 		if (dsa_port_to_conduit(dp)->flags & IFF_UP)  in dsa_tree_change_tag_proto()
1007 		if (dp->user->flags & IFF_UP)  in dsa_tree_change_tag_proto()
1094 	struct dsa_port *dp;  in dsa_port_touch()  local
1096 	dsa_switch_for_each_port(dp, ds)  in dsa_port_touch()
1097 		if (dp->index == index)  in dsa_port_touch()
1098 			return dp;  in dsa_port_touch()
1100 	dp = kzalloc(sizeof(*dp), GFP_KERNEL);  in dsa_port_touch()
1101 	if (!dp)  in dsa_port_touch()
1104 	dp->ds = ds;  in dsa_port_touch()
1105 	dp->index = index;  in dsa_port_touch()
1107 	mutex_init(&dp->addr_lists_lock);  in dsa_port_touch()
1108 	mutex_init(&dp->vlans_lock);  in dsa_port_touch()
1109 	INIT_LIST_HEAD(&dp->fdbs);  in dsa_port_touch()
1110 	INIT_LIST_HEAD(&dp->mdbs);  in dsa_port_touch()
1111 	INIT_LIST_HEAD(&dp->vlans); /* also initializes &dp->user_vlans */  in dsa_port_touch()
1112 	INIT_LIST_HEAD(&dp->list);  in dsa_port_touch()
1113 	list_add_tail(&dp->list, &dst->ports);  in dsa_port_touch()
1115 	return dp;  in dsa_port_touch()
1118 static int dsa_port_parse_user(struct dsa_port *dp, const char *name)  in dsa_port_parse_user()  argument
1120 	dp->type = DSA_PORT_TYPE_USER;  in dsa_port_parse_user()
1121 	dp->name = name;  in dsa_port_parse_user()
1126 static int dsa_port_parse_dsa(struct dsa_port *dp)  in dsa_port_parse_dsa()  argument
1128 	dp->type = DSA_PORT_TYPE_DSA;  in dsa_port_parse_dsa()
1133 static enum dsa_tag_protocol dsa_get_tag_protocol(struct dsa_port *dp,  in dsa_get_tag_protocol()  argument
1137 	struct dsa_switch *mds, *ds = dp->ds;  in dsa_get_tag_protocol()
1156 	return ds->ops->get_tag_protocol(ds, dp->index, tag_protocol);  in dsa_get_tag_protocol()
1159 static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *conduit,  in dsa_port_parse_cpu()  argument
1163 	struct dsa_switch *ds = dp->ds;  in dsa_port_parse_cpu()
1168 	default_proto = dsa_get_tag_protocol(dp, conduit);  in dsa_port_parse_cpu()
1223 	dp->conduit = conduit;  in dsa_port_parse_cpu()
1224 	dp->type = DSA_PORT_TYPE_CPU;  in dsa_port_parse_cpu()
1225 	dsa_port_set_tag_protocol(dp, dst->tag_ops);  in dsa_port_parse_cpu()
1226 	dp->dst = dst;  in dsa_port_parse_cpu()
1244 static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)  in dsa_port_parse_of()  argument
1250 	dp->dn = dn;  in dsa_port_parse_of()
1262 		return dsa_port_parse_cpu(dp, conduit, user_protocol);  in dsa_port_parse_of()
1266 		return dsa_port_parse_dsa(dp);  in dsa_port_parse_of()
1268 	return dsa_port_parse_user(dp, name);  in dsa_port_parse_of()
1275 	struct dsa_port *dp;  in dsa_switch_parse_ports_of()  local
1304 		dp = dsa_to_port(ds, reg);  in dsa_switch_parse_ports_of()
1306 		err = dsa_port_parse_of(dp, port);  in dsa_switch_parse_ports_of()
1350 	struct dsa_port *dp;  in dsa_switch_touch_ports()  local
1354 		dp = dsa_port_touch(ds, port);  in dsa_switch_touch_ports()
1355 		if (!dp)  in dsa_switch_touch_ports()
1413 static int dsa_port_parse(struct dsa_port *dp, const char *name,  in dsa_port_parse()  argument
1425 		return dsa_port_parse_cpu(dp, conduit, NULL);  in dsa_port_parse()
1429 		return dsa_port_parse_dsa(dp);  in dsa_port_parse()
1431 	return dsa_port_parse_user(dp, name);  in dsa_port_parse()
1438 	struct dsa_port *dp;  in dsa_switch_parse_ports()  local
1447 		dp = dsa_to_port(ds, i);  in dsa_switch_parse_ports()
1452 		err = dsa_port_parse(dp, name, dev);  in dsa_switch_parse_ports()
1489 	struct dsa_port *dp, *next;  in dsa_switch_release_ports()  local
1492 	dsa_switch_for_each_port_safe(dp, next, ds) {  in dsa_switch_release_ports()
1498 		list_for_each_entry_safe(a, tmp, &dp->fdbs, list) {  in dsa_switch_release_ports()
1501 				 a->addr, a->vid, dp->index);  in dsa_switch_release_ports()
1506 		list_for_each_entry_safe(a, tmp, &dp->mdbs, list) {  in dsa_switch_release_ports()
1509 				 a->addr, a->vid, dp->index);  in dsa_switch_release_ports()
1518 		list_for_each_entry_safe(v, n, &dp->vlans, list) {  in dsa_switch_release_ports()
1521 				 v->vid, dp->index);  in dsa_switch_release_ports()
1526 		list_del(&dp->list);  in dsa_switch_release_ports()
1527 		kfree(dp);  in dsa_switch_release_ports()
1612 	struct dsa_port *dp;  in dsa_switch_shutdown()  local
1621 	dsa_switch_for_each_cpu_port(dp, ds)  in dsa_switch_shutdown()
1622 		list_add(&dp->conduit->close_list, &close_list);  in dsa_switch_shutdown()
1626 	dsa_switch_for_each_user_port(dp, ds) {  in dsa_switch_shutdown()
1627 		conduit = dsa_port_to_conduit(dp);  in dsa_switch_shutdown()
1628 		user_dev = dp->user;  in dsa_switch_shutdown()
1637 	dsa_switch_for_each_cpu_port(dp, ds)  in dsa_switch_shutdown()
1638 		dp->conduit->dsa_ptr = NULL;  in dsa_switch_shutdown()
1647 static bool dsa_port_is_initialized(const struct dsa_port *dp)  in dsa_port_is_initialized()  argument
1649 	return dp->type == DSA_PORT_TYPE_USER && dp->user;  in dsa_port_is_initialized()
1654 	struct dsa_port *dp;  in dsa_switch_suspend()  local
1658 	dsa_switch_for_each_port(dp, ds) {  in dsa_switch_suspend()
1659 		if (!dsa_port_is_initialized(dp))  in dsa_switch_suspend()
1662 		ret = dsa_user_suspend(dp->user);  in dsa_switch_suspend()
1676 	struct dsa_port *dp;  in dsa_switch_resume()  local
1686 	dsa_switch_for_each_port(dp, ds) {  in dsa_switch_resume()
1687 		if (!dsa_port_is_initialized(dp))  in dsa_switch_resume()
1690 		ret = dsa_user_resume(dp->user);  in dsa_switch_resume()
1716 		return a->dp == b->dp;  in dsa_db_equal()
1731 	struct dsa_port *dp = dsa_to_port(ds, port);  in dsa_fdb_present_in_other_db()  local
1734 	lockdep_assert_held(&dp->addr_lists_lock);  in dsa_fdb_present_in_other_db()
1736 	list_for_each_entry(a, &dp->fdbs, list) {  in dsa_fdb_present_in_other_db()
1752 	struct dsa_port *dp = dsa_to_port(ds, port);  in dsa_mdb_present_in_other_db()  local
1755 	lockdep_assert_held(&dp->addr_lists_lock);  in dsa_mdb_present_in_other_db()
1757 	list_for_each_entry(a, &dp->mdbs, list) {  in dsa_mdb_present_in_other_db()