82  * driver by setting ds->num_lag_ids. It is perfectly legal to leave
212 			if (dp->ds->index != sw_index)  in dsa_switch_find()
215 			return dp->ds;  in dsa_switch_find()
313 	struct dsa_switch *ds = dp->ds;  in dsa_link_touch()  local
317 	dst = ds->dst;  in dsa_link_touch()
338 	struct dsa_switch *ds = dp->ds;  in dsa_port_setup_routing_table()  local
339 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_setup_routing_table()
442 		dsa_switch_for_each_port(dp, cpu_dp->ds) {  in dsa_tree_setup_cpu_ports()
467 	struct dsa_switch_tree *dst = dp->ds->dst;  in dsa_port_devlink_setup()
469 	struct devlink *dl = dp->ds->devlink;  in dsa_port_devlink_setup()
470 	struct dsa_switch *ds = dp->ds;  in dsa_port_devlink_setup()  local
478 	if (ds->ops->port_setup) {  in dsa_port_devlink_setup()
479 		err = ds->ops->port_setup(ds, dp->index);  in dsa_port_devlink_setup()
509 		if (ds->ops->port_teardown)  in dsa_port_devlink_setup()
510 			ds->ops->port_teardown(ds, dp->index);  in dsa_port_devlink_setup()
520 	struct dsa_switch *ds = dp->ds;  in dsa_port_devlink_teardown()  local
524 	if (ds->ops->port_teardown)  in dsa_port_devlink_teardown()
525 		ds->ops->port_teardown(ds, dp->index);  in dsa_port_devlink_teardown()
534 	struct dsa_switch *ds = dp->ds;  in dsa_port_setup()  local
556 			dev_warn(ds->dev,  in dsa_port_setup()
574 			dev_warn(ds->dev,  in dsa_port_setup()
654 	struct dsa_switch *ds = dsa_devlink_to_ds(dl);  in dsa_devlink_info_get()  local
656 	if (ds->ops->devlink_info_get)  in dsa_devlink_info_get()
657 		return ds->ops->devlink_info_get(ds, req, extack);  in dsa_devlink_info_get()
666 	struct dsa_switch *ds = dsa_devlink_to_ds(dl);  in dsa_devlink_sb_pool_get()  local
668 	if (!ds->ops->devlink_sb_pool_get)  in dsa_devlink_sb_pool_get()
671 	return ds->ops->devlink_sb_pool_get(ds, sb_index, pool_index,  in dsa_devlink_sb_pool_get()
680 	struct dsa_switch *ds = dsa_devlink_to_ds(dl);  in dsa_devlink_sb_pool_set()  local
682 	if (!ds->ops->devlink_sb_pool_set)  in dsa_devlink_sb_pool_set()
685 	return ds->ops->devlink_sb_pool_set(ds, sb_index, pool_index, size,  in dsa_devlink_sb_pool_set()
693 	struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);  in dsa_devlink_sb_port_pool_get()  local
696 	if (!ds->ops->devlink_sb_port_pool_get)  in dsa_devlink_sb_port_pool_get()
699 	return ds->ops->devlink_sb_port_pool_get(ds, port, sb_index,  in dsa_devlink_sb_port_pool_get()
708 	struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);  in dsa_devlink_sb_port_pool_set()  local
711 	if (!ds->ops->devlink_sb_port_pool_set)  in dsa_devlink_sb_port_pool_set()
714 	return ds->ops->devlink_sb_port_pool_set(ds, port, sb_index,  in dsa_devlink_sb_port_pool_set()
724 	struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);  in dsa_devlink_sb_tc_pool_bind_get()  local
727 	if (!ds->ops->devlink_sb_tc_pool_bind_get)  in dsa_devlink_sb_tc_pool_bind_get()
730 	return ds->ops->devlink_sb_tc_pool_bind_get(ds, port, sb_index,  in dsa_devlink_sb_tc_pool_bind_get()
742 	struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);  in dsa_devlink_sb_tc_pool_bind_set()  local
745 	if (!ds->ops->devlink_sb_tc_pool_bind_set)  in dsa_devlink_sb_tc_pool_bind_set()
748 	return ds->ops->devlink_sb_tc_pool_bind_set(ds, port, sb_index,  in dsa_devlink_sb_tc_pool_bind_set()
757 	struct dsa_switch *ds = dsa_devlink_to_ds(dl);  in dsa_devlink_sb_occ_snapshot()  local
759 	if (!ds->ops->devlink_sb_occ_snapshot)  in dsa_devlink_sb_occ_snapshot()
762 	return ds->ops->devlink_sb_occ_snapshot(ds, sb_index);  in dsa_devlink_sb_occ_snapshot()
768 	struct dsa_switch *ds = dsa_devlink_to_ds(dl);  in dsa_devlink_sb_occ_max_clear()  local
770 	if (!ds->ops->devlink_sb_occ_max_clear)  in dsa_devlink_sb_occ_max_clear()
773 	return ds->ops->devlink_sb_occ_max_clear(ds, sb_index);  in dsa_devlink_sb_occ_max_clear()
781 	struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);  in dsa_devlink_sb_occ_port_pool_get()  local
784 	if (!ds->ops->devlink_sb_occ_port_pool_get)  in dsa_devlink_sb_occ_port_pool_get()
787 	return ds->ops->devlink_sb_occ_port_pool_get(ds, port, sb_index,  in dsa_devlink_sb_occ_port_pool_get()
797 	struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);  in dsa_devlink_sb_occ_tc_port_bind_get()  local
800 	if (!ds->ops->devlink_sb_occ_tc_port_bind_get)  in dsa_devlink_sb_occ_tc_port_bind_get()
803 	return ds->ops->devlink_sb_occ_tc_port_bind_get(ds, port,  in dsa_devlink_sb_occ_tc_port_bind_get()
823 static int dsa_switch_setup_tag_protocol(struct dsa_switch *ds)  in dsa_switch_setup_tag_protocol()  argument
825 	const struct dsa_device_ops *tag_ops = ds->dst->tag_ops;  in dsa_switch_setup_tag_protocol()
826 	struct dsa_switch_tree *dst = ds->dst;  in dsa_switch_setup_tag_protocol()
833 	err = ds->ops->change_tag_protocol(ds, tag_ops->proto);  in dsa_switch_setup_tag_protocol()
836 		dev_err(ds->dev, "Unable to use tag protocol \"%s\": %pe\n",  in dsa_switch_setup_tag_protocol()
843 		err = tag_ops->connect(ds);  in dsa_switch_setup_tag_protocol()
848 	if (ds->ops->connect_tag_protocol) {  in dsa_switch_setup_tag_protocol()
849 		err = ds->ops->connect_tag_protocol(ds, tag_ops->proto);  in dsa_switch_setup_tag_protocol()
851 			dev_err(ds->dev,  in dsa_switch_setup_tag_protocol()
862 		tag_ops->disconnect(ds);  in dsa_switch_setup_tag_protocol()
867 static void dsa_switch_teardown_tag_protocol(struct dsa_switch *ds)  in dsa_switch_teardown_tag_protocol()  argument
869 	const struct dsa_device_ops *tag_ops = ds->dst->tag_ops;  in dsa_switch_teardown_tag_protocol()
872 		tag_ops->disconnect(ds);  in dsa_switch_teardown_tag_protocol()
875 static int dsa_switch_setup(struct dsa_switch *ds)  in dsa_switch_setup()  argument
881 	if (ds->setup)  in dsa_switch_setup()
884 	/* Initialize ds->phys_mii_mask before registering the slave MDIO bus  in dsa_switch_setup()
889 	ds->phys_mii_mask |= dsa_user_ports(ds);  in dsa_switch_setup()
894 	ds->devlink =  in dsa_switch_setup()
895 		devlink_alloc(&dsa_devlink_ops, sizeof(*dl_priv), ds->dev);  in dsa_switch_setup()
896 	if (!ds->devlink)  in dsa_switch_setup()
898 	dl_priv = devlink_priv(ds->devlink);  in dsa_switch_setup()
899 	dl_priv->ds = ds;  in dsa_switch_setup()
901 	err = dsa_switch_register_notifier(ds);  in dsa_switch_setup()
905 	ds->configure_vlan_while_not_filtering = true;  in dsa_switch_setup()
907 	err = ds->ops->setup(ds);  in dsa_switch_setup()
911 	err = dsa_switch_setup_tag_protocol(ds);  in dsa_switch_setup()
915 	if (!ds->slave_mii_bus && ds->ops->phy_read) {  in dsa_switch_setup()
916 		ds->slave_mii_bus = mdiobus_alloc();  in dsa_switch_setup()
917 		if (!ds->slave_mii_bus) {  in dsa_switch_setup()
922 		dsa_slave_mii_bus_init(ds);  in dsa_switch_setup()
924 		dn = of_get_child_by_name(ds->dev->of_node, "mdio");  in dsa_switch_setup()
926 		err = of_mdiobus_register(ds->slave_mii_bus, dn);  in dsa_switch_setup()
932 	ds->setup = true;  in dsa_switch_setup()
933 	devlink_register(ds->devlink);  in dsa_switch_setup()
937 	if (ds->slave_mii_bus && ds->ops->phy_read)  in dsa_switch_setup()
938 		mdiobus_free(ds->slave_mii_bus);  in dsa_switch_setup()
940 	if (ds->ops->teardown)  in dsa_switch_setup()
941 		ds->ops->teardown(ds);  in dsa_switch_setup()
943 	dsa_switch_unregister_notifier(ds);  in dsa_switch_setup()
945 	devlink_free(ds->devlink);  in dsa_switch_setup()
946 	ds->devlink = NULL;  in dsa_switch_setup()
950 static void dsa_switch_teardown(struct dsa_switch *ds)  in dsa_switch_teardown()  argument
952 	if (!ds->setup)  in dsa_switch_teardown()
955 	if (ds->devlink)  in dsa_switch_teardown()
956 		devlink_unregister(ds->devlink);  in dsa_switch_teardown()
958 	if (ds->slave_mii_bus && ds->ops->phy_read) {  in dsa_switch_teardown()
959 		mdiobus_unregister(ds->slave_mii_bus);  in dsa_switch_teardown()
960 		mdiobus_free(ds->slave_mii_bus);  in dsa_switch_teardown()
961 		ds->slave_mii_bus = NULL;  in dsa_switch_teardown()
964 	dsa_switch_teardown_tag_protocol(ds);  in dsa_switch_teardown()
966 	if (ds->ops->teardown)  in dsa_switch_teardown()
967 		ds->ops->teardown(ds);  in dsa_switch_teardown()
969 	dsa_switch_unregister_notifier(ds);  in dsa_switch_teardown()
971 	if (ds->devlink) {  in dsa_switch_teardown()
972 		devlink_free(ds->devlink);  in dsa_switch_teardown()
973 		ds->devlink = NULL;  in dsa_switch_teardown()
976 	ds->setup = false;  in dsa_switch_teardown()
1003 		dsa_switch_teardown(dp->ds);  in dsa_tree_teardown_switches()
1045 		err = dsa_switch_setup(dp->ds);  in dsa_tree_setup_switches()
1109 		if (dp->ds->num_lag_ids > len)  in dsa_tree_setup_lags()
1110 			len = dp->ds->num_lag_ids;  in dsa_tree_setup_lags()
1348 static struct dsa_port *dsa_port_touch(struct dsa_switch *ds, int index)  in dsa_port_touch()  argument
1350 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_touch()
1353 	dsa_switch_for_each_port(dp, ds)  in dsa_port_touch()
1361 	dp->ds = ds;  in dsa_port_touch()
1397 	struct dsa_switch *mds, *ds = dp->ds;  in dsa_get_tag_protocol()  local
1407 		mds = mdp->ds;  in dsa_get_tag_protocol()
1416 	return ds->ops->get_tag_protocol(ds, dp->index, tag_protocol);  in dsa_get_tag_protocol()
1423 	struct dsa_switch *ds = dp->ds;  in dsa_port_parse_cpu()  local
1424 	struct dsa_switch_tree *dst = ds->dst;  in dsa_port_parse_cpu()
1431 			dev_err(ds->dev,  in dsa_port_parse_cpu()
1441 		if (!ds->ops->change_tag_protocol) {  in dsa_port_parse_cpu()
1442 			dev_err(ds->dev, "Tag protocol cannot be modified\n");  in dsa_port_parse_cpu()
1448 			dev_warn(ds->dev,  in dsa_port_parse_cpu()
1462 		dev_warn(ds->dev, "No tagger for this switch\n");  in dsa_port_parse_cpu()
1468 			dev_err(ds->dev,  in dsa_port_parse_cpu()
1531 static int dsa_switch_parse_ports_of(struct dsa_switch *ds,  in dsa_switch_parse_ports_of()  argument
1544 			dev_err(ds->dev, "no ports child node found\n");  in dsa_switch_parse_ports_of()
1556 		if (reg >= ds->num_ports) {  in dsa_switch_parse_ports_of()
1557 			dev_err(ds->dev, "port %pOF index %u exceeds num_ports (%u)\n",  in dsa_switch_parse_ports_of()
1558 				port, reg, ds->num_ports);  in dsa_switch_parse_ports_of()
1564 		dp = dsa_to_port(ds, reg);  in dsa_switch_parse_ports_of()
1578 static int dsa_switch_parse_member_of(struct dsa_switch *ds,  in dsa_switch_parse_member_of()  argument
1589 	ds->index = m[1];  in dsa_switch_parse_member_of()
1591 	ds->dst = dsa_tree_touch(m[0]);  in dsa_switch_parse_member_of()
1592 	if (!ds->dst)  in dsa_switch_parse_member_of()
1595 	if (dsa_switch_find(ds->dst->index, ds->index)) {  in dsa_switch_parse_member_of()
1596 		dev_err(ds->dev,  in dsa_switch_parse_member_of()
1598 			ds->index, ds->dst->index);  in dsa_switch_parse_member_of()
1602 	if (ds->dst->last_switch < ds->index)  in dsa_switch_parse_member_of()
1603 		ds->dst->last_switch = ds->index;  in dsa_switch_parse_member_of()
1608 static int dsa_switch_touch_ports(struct dsa_switch *ds)  in dsa_switch_touch_ports()  argument
1613 	for (port = 0; port < ds->num_ports; port++) {  in dsa_switch_touch_ports()
1614 		dp = dsa_port_touch(ds, port);  in dsa_switch_touch_ports()
1622 static int dsa_switch_parse_of(struct dsa_switch *ds, struct device_node *dn)  in dsa_switch_parse_of()  argument
1626 	err = dsa_switch_parse_member_of(ds, dn);  in dsa_switch_parse_of()
1630 	err = dsa_switch_touch_ports(ds);  in dsa_switch_parse_of()
1634 	return dsa_switch_parse_ports_of(ds, dn);  in dsa_switch_parse_of()
1658 static int dsa_switch_parse_ports(struct dsa_switch *ds,  in dsa_switch_parse_ports()  argument
1671 		dp = dsa_to_port(ds, i);  in dsa_switch_parse_ports()
1689 static int dsa_switch_parse(struct dsa_switch *ds, struct dsa_chip_data *cd)  in dsa_switch_parse()  argument
1693 	ds->cd = cd;  in dsa_switch_parse()
1698 	ds->index = 0;  in dsa_switch_parse()
1699 	ds->dst = dsa_tree_touch(0);  in dsa_switch_parse()
1700 	if (!ds->dst)  in dsa_switch_parse()
1703 	err = dsa_switch_touch_ports(ds);  in dsa_switch_parse()
1707 	return dsa_switch_parse_ports(ds, cd);  in dsa_switch_parse()
1710 static void dsa_switch_release_ports(struct dsa_switch *ds)  in dsa_switch_release_ports()  argument
1714 	dsa_switch_for_each_port_safe(dp, next, ds) {  in dsa_switch_release_ports()
1723 static int dsa_switch_probe(struct dsa_switch *ds)  in dsa_switch_probe()  argument
1730 	if (!ds->dev)  in dsa_switch_probe()
1733 	pdata = ds->dev->platform_data;  in dsa_switch_probe()
1734 	np = ds->dev->of_node;  in dsa_switch_probe()
1736 	if (!ds->num_ports)  in dsa_switch_probe()
1740 		err = dsa_switch_parse_of(ds, np);  in dsa_switch_probe()
1742 			dsa_switch_release_ports(ds);  in dsa_switch_probe()
1744 		err = dsa_switch_parse(ds, pdata);  in dsa_switch_probe()
1746 			dsa_switch_release_ports(ds);  in dsa_switch_probe()
1754 	dst = ds->dst;  in dsa_switch_probe()
1758 		dsa_switch_release_ports(ds);  in dsa_switch_probe()
1765 int dsa_register_switch(struct dsa_switch *ds)  in dsa_register_switch()  argument
1770 	err = dsa_switch_probe(ds);  in dsa_register_switch()
1771 	dsa_tree_put(ds->dst);  in dsa_register_switch()
1778 static void dsa_switch_remove(struct dsa_switch *ds)  in dsa_switch_remove()  argument
1780 	struct dsa_switch_tree *dst = ds->dst;  in dsa_switch_remove()
1783 	dsa_switch_release_ports(ds);  in dsa_switch_remove()
1787 void dsa_unregister_switch(struct dsa_switch *ds)  in dsa_unregister_switch()  argument
1790 	dsa_switch_remove(ds);  in dsa_unregister_switch()
1800 void dsa_switch_shutdown(struct dsa_switch *ds)  in dsa_switch_shutdown()  argument
1807 	if (!ds->setup)  in dsa_switch_shutdown()
1812 	dsa_switch_for_each_user_port(dp, ds) {  in dsa_switch_shutdown()
1822 	dsa_switch_for_each_cpu_port(dp, ds)  in dsa_switch_shutdown()