108 	struct dsa_port *dp;  in dsa_tree_lag_find()  local
110 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_lag_find()
111 		if (dsa_port_lag_dev_get(dp) == lag_dev)  in dsa_tree_lag_find()
112 			return dp->lag;  in dsa_tree_lag_find()
120 	struct dsa_port *dp;  in dsa_tree_bridge_find()  local
122 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_bridge_find()
123 		if (dsa_port_bridge_dev_get(dp) == br)  in dsa_tree_bridge_find()
124 			return dp->bridge;  in dsa_tree_bridge_find()
183 	struct dsa_port *dp;  in dsa_switch_find()  local
189 		list_for_each_entry(dp, &dst->ports, list) {  in dsa_switch_find()
190 			if (dp->ds->index != sw_index)  in dsa_switch_find()
193 			return dp->ds;  in dsa_switch_find()
279 	struct dsa_port *dp;  in dsa_tree_find_port_by_node()  local
281 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_find_port_by_node()
282 		if (dp->dn == dn)  in dsa_tree_find_port_by_node()
283 			return dp;  in dsa_tree_find_port_by_node()
288 static struct dsa_link *dsa_link_touch(struct dsa_port *dp,  in dsa_link_touch()  argument
291 	struct dsa_switch *ds = dp->ds;  in dsa_link_touch()
298 		if (dl->dp == dp && dl->link_dp == link_dp)  in dsa_link_touch()
305 	dl->dp = dp;  in dsa_link_touch()
314 static bool dsa_port_setup_routing_table(struct dsa_port *dp)  in dsa_port_setup_routing_table()  argument
316 	struct dsa_switch *ds = dp->ds;  in dsa_port_setup_routing_table()
318 	struct device_node *dn = dp->dn;  in dsa_port_setup_routing_table()
331 		dl = dsa_link_touch(dp, link_dp);  in dsa_port_setup_routing_table()
344 	struct dsa_port *dp;  in dsa_tree_setup_routing_table()  local
346 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_routing_table()
347 		if (dsa_port_is_dsa(dp)) {  in dsa_tree_setup_routing_table()
348 			complete = dsa_port_setup_routing_table(dp);  in dsa_tree_setup_routing_table()
359 	struct dsa_port *dp;  in dsa_tree_find_first_cpu()  local
361 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_find_first_cpu()
362 		if (dsa_port_is_cpu(dp))  in dsa_tree_find_first_cpu()
363 			return dp;  in dsa_tree_find_first_cpu()
381 	struct dsa_port *cpu_dp, *dp;  in dsa_tree_setup_default_cpu()  local
389 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_default_cpu()
390 		if (dp->cpu_dp)  in dsa_tree_setup_default_cpu()
393 		if (dsa_port_is_user(dp) || dsa_port_is_dsa(dp))  in dsa_tree_setup_default_cpu()
394 			dp->cpu_dp = cpu_dp;  in dsa_tree_setup_default_cpu()
425 	struct dsa_port *preferred_cpu_dp, *cpu_dp, *dp;  in dsa_tree_setup_cpu_ports()  local
436 		dsa_switch_for_each_port(dp, cpu_dp->ds) {  in dsa_tree_setup_cpu_ports()
438 			if (dp->cpu_dp)  in dsa_tree_setup_cpu_ports()
441 			if (dsa_port_is_user(dp) || dsa_port_is_dsa(dp))  in dsa_tree_setup_cpu_ports()
442 				dp->cpu_dp = cpu_dp;  in dsa_tree_setup_cpu_ports()
451 	struct dsa_port *dp;  in dsa_tree_teardown_cpu_ports()  local
453 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_teardown_cpu_ports()
454 		if (dsa_port_is_user(dp) || dsa_port_is_dsa(dp))  in dsa_tree_teardown_cpu_ports()
455 			dp->cpu_dp = NULL;  in dsa_tree_teardown_cpu_ports()
458 static int dsa_port_setup(struct dsa_port *dp)  in dsa_port_setup()  argument
461 	struct dsa_switch *ds = dp->ds;  in dsa_port_setup()
465 	if (dp->setup)  in dsa_port_setup()
468 	err = dsa_port_devlink_setup(dp);  in dsa_port_setup()
472 	switch (dp->type) {  in dsa_port_setup()
474 		dsa_port_disable(dp);  in dsa_port_setup()
477 		if (dp->dn) {  in dsa_port_setup()
478 			err = dsa_shared_port_link_register_of(dp);  in dsa_port_setup()
485 				 dp->index);  in dsa_port_setup()
488 		err = dsa_port_enable(dp, NULL);  in dsa_port_setup()
495 		if (dp->dn) {  in dsa_port_setup()
496 			err = dsa_shared_port_link_register_of(dp);  in dsa_port_setup()
503 				 dp->index);  in dsa_port_setup()
506 		err = dsa_port_enable(dp, NULL);  in dsa_port_setup()
513 		of_get_mac_address(dp->dn, dp->mac);  in dsa_port_setup()
514 		err = dsa_user_create(dp);  in dsa_port_setup()
519 		dsa_port_disable(dp);  in dsa_port_setup()
521 		dsa_shared_port_link_unregister_of(dp);  in dsa_port_setup()
523 		dsa_port_devlink_teardown(dp);  in dsa_port_setup()
527 	dp->setup = true;  in dsa_port_setup()
532 static void dsa_port_teardown(struct dsa_port *dp)  in dsa_port_teardown()  argument
534 	if (!dp->setup)  in dsa_port_teardown()
537 	switch (dp->type) {  in dsa_port_teardown()
541 		dsa_port_disable(dp);  in dsa_port_teardown()
542 		if (dp->dn)  in dsa_port_teardown()
543 			dsa_shared_port_link_unregister_of(dp);  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 		if (dp->user) {  in dsa_port_teardown()
552 			dsa_user_destroy(dp->user);  in dsa_port_teardown()
553 			dp->user = NULL;  in dsa_port_teardown()
558 	dsa_port_devlink_teardown(dp);  in dsa_port_teardown()
560 	dp->setup = false;  in dsa_port_teardown()
563 static int dsa_port_setup_as_unused(struct dsa_port *dp)  in dsa_port_setup_as_unused()  argument
565 	dp->type = DSA_PORT_TYPE_UNUSED;  in dsa_port_setup_as_unused()
566 	return dsa_port_setup(dp);  in dsa_port_setup_as_unused()
716 	struct dsa_port *dp;  in dsa_tree_teardown_ports()  local
718 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_teardown_ports()
719 		if (dsa_port_is_user(dp) || dsa_port_is_unused(dp))  in dsa_tree_teardown_ports()
720 			dsa_port_teardown(dp);  in dsa_tree_teardown_ports()
724 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_teardown_ports()
725 		if (dsa_port_is_dsa(dp) || dsa_port_is_cpu(dp))  in dsa_tree_teardown_ports()
726 			dsa_port_teardown(dp);  in dsa_tree_teardown_ports()
731 	struct dsa_port *dp;  in dsa_tree_teardown_switches()  local
733 	list_for_each_entry(dp, &dst->ports, list)  in dsa_tree_teardown_switches()
734 		dsa_switch_teardown(dp->ds);  in dsa_tree_teardown_switches()
740 	struct dsa_port *dp;  in dsa_tree_setup_ports()  local
743 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_ports()
744 		if (dsa_port_is_dsa(dp) || dsa_port_is_cpu(dp)) {  in dsa_tree_setup_ports()
745 			err = dsa_port_setup(dp);  in dsa_tree_setup_ports()
751 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_ports()
752 		if (dsa_port_is_user(dp) || dsa_port_is_unused(dp)) {  in dsa_tree_setup_ports()
753 			err = dsa_port_setup(dp);  in dsa_tree_setup_ports()
755 				err = dsa_port_setup_as_unused(dp);  in dsa_tree_setup_ports()
772 	struct dsa_port *dp;  in dsa_tree_setup_switches()  local
775 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_switches()
776 		err = dsa_switch_setup(dp->ds);  in dsa_tree_setup_switches()
837 	struct dsa_port *dp;  in dsa_tree_setup_lags()  local
839 	list_for_each_entry(dp, &dst->ports, list) {  in dsa_tree_setup_lags()
840 		if (dp->ds->num_lag_ids > len)  in dsa_tree_setup_lags()
841 			len = dp->ds->num_lag_ids;  in dsa_tree_setup_lags()
987 	struct dsa_port *dp;  in dsa_tree_change_tag_proto()  local
998 	dsa_tree_for_each_user_port(dp, dst) {  in dsa_tree_change_tag_proto()
999 		if (dsa_port_to_conduit(dp)->flags & IFF_UP)  in dsa_tree_change_tag_proto()
1002 		if (dp->user->flags & IFF_UP)  in dsa_tree_change_tag_proto()
1089 	struct dsa_port *dp;  in dsa_port_touch()  local
1091 	dsa_switch_for_each_port(dp, ds)  in dsa_port_touch()
1092 		if (dp->index == index)  in dsa_port_touch()
1093 			return dp;  in dsa_port_touch()
1095 	dp = kzalloc(sizeof(*dp), GFP_KERNEL);  in dsa_port_touch()
1096 	if (!dp)  in dsa_port_touch()
1099 	dp->ds = ds;  in dsa_port_touch()
1100 	dp->index = index;  in dsa_port_touch()
1102 	mutex_init(&dp->addr_lists_lock);  in dsa_port_touch()
1103 	mutex_init(&dp->vlans_lock);  in dsa_port_touch()
1104 	INIT_LIST_HEAD(&dp->fdbs);  in dsa_port_touch()
1105 	INIT_LIST_HEAD(&dp->mdbs);  in dsa_port_touch()
1106 	INIT_LIST_HEAD(&dp->vlans); /* also initializes &dp->user_vlans */  in dsa_port_touch()
1107 	INIT_LIST_HEAD(&dp->list);  in dsa_port_touch()
1108 	list_add_tail(&dp->list, &dst->ports);  in dsa_port_touch()
1110 	return dp;  in dsa_port_touch()
1113 static int dsa_port_parse_user(struct dsa_port *dp, const char *name)  in dsa_port_parse_user()  argument
1115 	dp->type = DSA_PORT_TYPE_USER;  in dsa_port_parse_user()
1116 	dp->name = name;  in dsa_port_parse_user()
1121 static int dsa_port_parse_dsa(struct dsa_port *dp)  in dsa_port_parse_dsa()  argument
1123 	dp->type = DSA_PORT_TYPE_DSA;  in dsa_port_parse_dsa()
1128 static enum dsa_tag_protocol dsa_get_tag_protocol(struct dsa_port *dp,  in dsa_get_tag_protocol()  argument
1132 	struct dsa_switch *mds, *ds = dp->ds;  in dsa_get_tag_protocol()
1151 	return ds->ops->get_tag_protocol(ds, dp->index, tag_protocol);  in dsa_get_tag_protocol()
1154 static int dsa_port_parse_cpu(struct dsa_port *dp, struct net_device *conduit,  in dsa_port_parse_cpu()  argument
1158 	struct dsa_switch *ds = dp->ds;  in dsa_port_parse_cpu()
1163 	default_proto = dsa_get_tag_protocol(dp, conduit);  in dsa_port_parse_cpu()
1218 	dp->conduit = conduit;  in dsa_port_parse_cpu()
1219 	dp->type = DSA_PORT_TYPE_CPU;  in dsa_port_parse_cpu()
1220 	dsa_port_set_tag_protocol(dp, dst->tag_ops);  in dsa_port_parse_cpu()
1221 	dp->dst = dst;  in dsa_port_parse_cpu()
1239 static int dsa_port_parse_of(struct dsa_port *dp, struct device_node *dn)  in dsa_port_parse_of()  argument
1245 	dp->dn = dn;  in dsa_port_parse_of()
1260 		netdev_hold(conduit, &dp->conduit_tracker, GFP_KERNEL);  in dsa_port_parse_of()
1265 		err = dsa_port_parse_cpu(dp, conduit, user_protocol);  in dsa_port_parse_of()
1267 			netdev_put(conduit, &dp->conduit_tracker);  in dsa_port_parse_of()
1272 		return dsa_port_parse_dsa(dp);  in dsa_port_parse_of()
1274 	return dsa_port_parse_user(dp, name);  in dsa_port_parse_of()
1281 	struct dsa_port *dp;  in dsa_switch_parse_ports_of()  local
1310 		dp = dsa_to_port(ds, reg);  in dsa_switch_parse_ports_of()
1312 		err = dsa_port_parse_of(dp, port);  in dsa_switch_parse_ports_of()
1356 	struct dsa_port *dp;  in dsa_switch_touch_ports()  local
1360 		dp = dsa_port_touch(ds, port);  in dsa_switch_touch_ports()
1361 		if (!dp)  in dsa_switch_touch_ports()
1401 static int dsa_port_parse(struct dsa_port *dp, const char *name,  in dsa_port_parse()  argument
1417 		netdev_hold(conduit, &dp->conduit_tracker, GFP_KERNEL);  in dsa_port_parse()
1421 		err = dsa_port_parse_cpu(dp, conduit, NULL);  in dsa_port_parse()
1423 			netdev_put(conduit, &dp->conduit_tracker);  in dsa_port_parse()
1428 		return dsa_port_parse_dsa(dp);  in dsa_port_parse()
1430 	return dsa_port_parse_user(dp, name);  in dsa_port_parse()
1437 	struct dsa_port *dp;  in dsa_switch_parse_ports()  local
1446 		dp = dsa_to_port(ds, i);  in dsa_switch_parse_ports()
1451 		err = dsa_port_parse(dp, name, dev);  in dsa_switch_parse_ports()
1488 	struct dsa_port *dp, *next;  in dsa_switch_release_ports()  local
1491 	dsa_switch_for_each_port_safe(dp, next, ds) {  in dsa_switch_release_ports()
1492 		if (dsa_port_is_cpu(dp) && dp->conduit)  in dsa_switch_release_ports()
1493 			netdev_put(dp->conduit, &dp->conduit_tracker);  in dsa_switch_release_ports()
1500 		list_for_each_entry_safe(a, tmp, &dp->fdbs, list) {  in dsa_switch_release_ports()
1503 				 a->addr, a->vid, dp->index);  in dsa_switch_release_ports()
1508 		list_for_each_entry_safe(a, tmp, &dp->mdbs, list) {  in dsa_switch_release_ports()
1511 				 a->addr, a->vid, dp->index);  in dsa_switch_release_ports()
1520 		list_for_each_entry_safe(v, n, &dp->vlans, list) {  in dsa_switch_release_ports()
1523 				 v->vid, dp->index);  in dsa_switch_release_ports()
1528 		list_del(&dp->list);  in dsa_switch_release_ports()
1529 		kfree(dp);  in dsa_switch_release_ports()
1614 	struct dsa_port *dp;  in dsa_switch_shutdown()  local
1623 	dsa_switch_for_each_cpu_port(dp, ds)  in dsa_switch_shutdown()
1624 		list_add(&dp->conduit->close_list, &close_list);  in dsa_switch_shutdown()
1628 	dsa_switch_for_each_user_port(dp, ds) {  in dsa_switch_shutdown()
1629 		conduit = dsa_port_to_conduit(dp);  in dsa_switch_shutdown()
1630 		user_dev = dp->user;  in dsa_switch_shutdown()
1639 	dsa_switch_for_each_cpu_port(dp, ds) {  in dsa_switch_shutdown()
1640 		dp->conduit->dsa_ptr = NULL;  in dsa_switch_shutdown()
1641 		netdev_put(dp->conduit, &dp->conduit_tracker);  in dsa_switch_shutdown()
1651 static bool dsa_port_is_initialized(const struct dsa_port *dp)  in dsa_port_is_initialized()  argument
1653 	return dp->type == DSA_PORT_TYPE_USER && dp->user;  in dsa_port_is_initialized()
1658 	struct dsa_port *dp;  in dsa_switch_suspend()  local
1662 	dsa_switch_for_each_port(dp, ds) {  in dsa_switch_suspend()
1663 		if (!dsa_port_is_initialized(dp))  in dsa_switch_suspend()
1666 		ret = dsa_user_suspend(dp->user);  in dsa_switch_suspend()
1680 	struct dsa_port *dp;  in dsa_switch_resume()  local
1690 	dsa_switch_for_each_port(dp, ds) {  in dsa_switch_resume()
1691 		if (!dsa_port_is_initialized(dp))  in dsa_switch_resume()
1694 		ret = dsa_user_resume(dp->user);  in dsa_switch_resume()
1720 		return a->dp == b->dp;  in dsa_db_equal()
1735 	struct dsa_port *dp = dsa_to_port(ds, port);  in dsa_fdb_present_in_other_db()  local
1738 	lockdep_assert_held(&dp->addr_lists_lock);  in dsa_fdb_present_in_other_db()
1740 	list_for_each_entry(a, &dp->fdbs, list) {  in dsa_fdb_present_in_other_db()
1756 	struct dsa_port *dp = dsa_to_port(ds, port);  in dsa_mdb_present_in_other_db()  local
1759 	lockdep_assert_held(&dp->addr_lists_lock);  in dsa_mdb_present_in_other_db()
1761 	list_for_each_entry(a, &dp->mdbs, list) {  in dsa_mdb_present_in_other_db()
1801 	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;  in dsa_port_simple_hsr_join()  local
1809 		if (other_dp != dp) {  in dsa_port_simple_hsr_join()
1810 			dp->user->features |= NETIF_F_HW_HSR_DUP;  in dsa_port_simple_hsr_join()
1823 	struct dsa_port *dp = dsa_to_port(ds, port), *other_dp;  in dsa_port_simple_hsr_leave()  local
1826 		if (other_dp != dp) {  in dsa_port_simple_hsr_leave()
1827 			dp->user->features &= ~NETIF_F_HW_HSR_DUP;  in dsa_port_simple_hsr_leave()