1 // SPDX-License-Identifier: GPL-2.0-or-later
34 		return -EINVAL;  in br_mst_get_info()
38 		return -EINVAL;  in br_mst_get_info()
42 	list_for_each_entry(v, &vg->vlan_list, vlist) {  in br_mst_get_info()
43 		if (v->msti == msti)  in br_mst_get_info()
44 			__set_bit(v->vid, vids);  in br_mst_get_info()
51 int br_mst_get_state(const struct net_device *dev, u16 msti, u8 *state)  in br_mst_get_state()  argument
53 	const struct net_bridge_port *p = NULL;  in br_mst_get_state()  local
59 	p = br_port_get_check_rtnl(dev);  in br_mst_get_state()
60 	if (!p || !br_opt_get(p->br, BROPT_MST_ENABLED))  in br_mst_get_state()
61 		return -EINVAL;  in br_mst_get_state()
63 	vg = nbp_vlan_group(p);  in br_mst_get_state()
65 	list_for_each_entry(v, &vg->vlan_list, vlist) {  in br_mst_get_state()
66 		if (v->brvlan->msti == msti) {  in br_mst_get_state()
67 			*state = v->state;  in br_mst_get_state()
72 	return -ENOENT;  in br_mst_get_state()
78 				  u8 state)  in br_mst_vlan_set_state()  argument
80 	if (br_vlan_get_state(v) == state)  in br_mst_vlan_set_state()
83 	br_vlan_set_state(v, state);  in br_mst_vlan_set_state()
85 	if (v->vid == vg->pvid)  in br_mst_vlan_set_state()
86 		br_vlan_set_pvid_state(vg, state);  in br_mst_vlan_set_state()
89 int br_mst_set_state(struct net_bridge_port *p, u16 msti, u8 state,  in br_mst_set_state()  argument
94 		.orig_dev = p->dev,  in br_mst_set_state()
97 			.state = state,  in br_mst_set_state()
105 	vg = nbp_vlan_group_rcu(p);  in br_mst_set_state()
109 	/* MSTI 0 (CST) state changes are notified via the regular  in br_mst_set_state()
113 		err = switchdev_port_attr_set(p->dev, &attr, extack);  in br_mst_set_state()
114 		if (err && err != -EOPNOTSUPP)  in br_mst_set_state()
119 	list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {  in br_mst_set_state()
120 		if (v->brvlan->msti != msti)  in br_mst_set_state()
123 		br_mst_vlan_set_state(vg, v, state);  in br_mst_set_state()
133 	struct net_bridge_vlan_group *vg = nbp_vlan_group(pv->port);  in br_mst_vlan_sync_state()
136 	list_for_each_entry(v, &vg->vlan_list, vlist) {  in br_mst_vlan_sync_state()
137 		/* If this port already has a defined state in this  in br_mst_vlan_sync_state()
141 		if (v != pv && v->brvlan->msti == msti) {  in br_mst_vlan_sync_state()
142 			br_mst_vlan_set_state(vg, pv, v->state);  in br_mst_vlan_sync_state()
155 		.orig_dev = mv->br->dev,  in br_mst_vlan_set_msti()
157 			.vid = mv->vid,  in br_mst_vlan_set_msti()
163 	struct net_bridge_port *p;  in br_mst_vlan_set_msti()  local
166 	if (mv->msti == msti)  in br_mst_vlan_set_msti()
169 	err = switchdev_port_attr_set(mv->br->dev, &attr, NULL);  in br_mst_vlan_set_msti()
170 	if (err && err != -EOPNOTSUPP)  in br_mst_vlan_set_msti()
173 	mv->msti = msti;  in br_mst_vlan_set_msti()
175 	list_for_each_entry(p, &mv->br->port_list, list) {  in br_mst_vlan_set_msti()
176 		vg = nbp_vlan_group(p);  in br_mst_vlan_set_msti()
178 		pv = br_vlan_find(vg, mv->vid);  in br_mst_vlan_set_msti()
189 	v->msti = 0;  in br_mst_vlan_init_state()
192 		v->state = BR_STATE_FORWARDING;  in br_mst_vlan_init_state()
194 		v->state = v->port->state;  in br_mst_vlan_init_state()
202 		.orig_dev = br->dev,  in br_mst_set_enabled()
206 	struct net_bridge_port *p;  in br_mst_set_enabled()  local
209 	list_for_each_entry(p, &br->port_list, list) {  in br_mst_set_enabled()
210 		vg = nbp_vlan_group(p);  in br_mst_set_enabled()
212 		if (!vg->num_vlans)  in br_mst_set_enabled()
217 		return -EBUSY;  in br_mst_set_enabled()
223 	err = switchdev_port_attr_set(br->dev, &attr, extack);  in br_mst_set_enabled()
224 	if (err && err != -EOPNOTSUPP)  in br_mst_set_enabled()
245 	list_for_each_entry_rcu(v, &vg->vlan_list, vlist) {  in br_mst_info_size()
246 		if (test_bit(v->brvlan->msti, seen))  in br_mst_info_size()
256 		__set_bit(v->brvlan->msti, seen);  in br_mst_info_size()
270 	list_for_each_entry(v, &vg->vlan_list, vlist) {  in br_mst_fill_info()
271 		if (test_bit(v->brvlan->msti, seen))  in br_mst_fill_info()
276 		    nla_put_u16(skb, IFLA_BRIDGE_MST_ENTRY_MSTI, v->brvlan->msti) ||  in br_mst_fill_info()
277 		    nla_put_u8(skb, IFLA_BRIDGE_MST_ENTRY_STATE, v->state)) {  in br_mst_fill_info()
278 			err = -EMSGSIZE;  in br_mst_fill_info()
283 		__set_bit(v->brvlan->msti, seen);  in br_mst_fill_info()
292 						   VLAN_N_VID - 1),
298 static int br_mst_process_one(struct net_bridge_port *p,  in br_mst_process_one()  argument
304 	u8 state;  in br_mst_process_one()  local
314 		return -EINVAL;  in br_mst_process_one()
318 		NL_SET_ERR_MSG_MOD(extack, "State not specified");  in br_mst_process_one()
319 		return -EINVAL;  in br_mst_process_one()
323 	state = nla_get_u8(tb[IFLA_BRIDGE_MST_ENTRY_STATE]);  in br_mst_process_one()
325 	return br_mst_set_state(p, msti, state, extack);  in br_mst_process_one()
328 int br_mst_process(struct net_bridge_port *p, const struct nlattr *mst_attr,  in br_mst_process()  argument
335 	if (!br_opt_get(p->br, BROPT_MST_ENABLED)) {  in br_mst_process()
336 		NL_SET_ERR_MSG_MOD(extack, "Can't modify MST state when MST is disabled");  in br_mst_process()
337 		return -EBUSY;  in br_mst_process()
343 			err = br_mst_process_one(p, attr, extack);  in br_mst_process()
356 		err = -EINVAL;  in br_mst_process()