43 	err = __set_ageing_time(p->dev, p->br->ageing_time);  in br_init_port()
49 void br_stp_enable_bridge(struct net_bridge *br)  in br_stp_enable_bridge()  argument
53 	spin_lock_bh(&br->lock);  in br_stp_enable_bridge()
54 	if (br->stp_enabled == BR_KERNEL_STP)  in br_stp_enable_bridge()
55 		mod_timer(&br->hello_timer, jiffies + br->hello_time);  in br_stp_enable_bridge()
56 	mod_delayed_work(system_long_wq, &br->gc_work, HZ / 10);  in br_stp_enable_bridge()
58 	br_config_bpdu_generation(br);  in br_stp_enable_bridge()
60 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_enable_bridge()
65 	spin_unlock_bh(&br->lock);  in br_stp_enable_bridge()
69 void br_stp_disable_bridge(struct net_bridge *br)  in br_stp_disable_bridge()  argument
73 	spin_lock_bh(&br->lock);  in br_stp_disable_bridge()
74 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_disable_bridge()
80 	__br_set_topology_change(br, 0);  in br_stp_disable_bridge()
81 	br->topology_change_detected = 0;  in br_stp_disable_bridge()
82 	spin_unlock_bh(&br->lock);  in br_stp_disable_bridge()
84 	del_timer_sync(&br->hello_timer);  in br_stp_disable_bridge()
85 	del_timer_sync(&br->topology_change_timer);  in br_stp_disable_bridge()
86 	del_timer_sync(&br->tcn_timer);  in br_stp_disable_bridge()
87 	cancel_delayed_work_sync(&br->gc_work);  in br_stp_disable_bridge()
94 	br_port_state_selection(p->br);  in br_stp_enable_port()
101 	struct net_bridge *br = p->br;  in br_stp_disable_port()  local
104 	wasroot = br_is_root_bridge(br);  in br_stp_disable_port()
117 		br_fdb_delete_by_port(br, p, 0, 0);  in br_stp_disable_port()
120 	br_configuration_update(br);  in br_stp_disable_port()
122 	br_port_state_selection(br);  in br_stp_disable_port()
124 	if (br_is_root_bridge(br) && !wasroot)  in br_stp_disable_port()
125 		br_become_root_bridge(br);  in br_stp_disable_port()
128 static int br_stp_call_user(struct net_bridge *br, char *arg)  in br_stp_call_user()  argument
130 	char *argv[] = { BR_STP_PROG, br->dev->name, arg, NULL };  in br_stp_call_user()
138 			br_debug(br, BR_STP_PROG " received signal %d\n",  in br_stp_call_user()
141 			br_debug(br, BR_STP_PROG " exited with code %d\n",  in br_stp_call_user()
148 static void br_stp_start(struct net_bridge *br)  in br_stp_start()  argument
152 	if (net_eq(dev_net(br->dev), &init_net))  in br_stp_start()
153 		err = br_stp_call_user(br, "start");  in br_stp_start()
156 		br_err(br, "failed to start userspace STP (%d)\n", err);  in br_stp_start()
158 	spin_lock_bh(&br->lock);  in br_stp_start()
160 	if (br->bridge_forward_delay < BR_MIN_FORWARD_DELAY)  in br_stp_start()
161 		__br_set_forward_delay(br, BR_MIN_FORWARD_DELAY);  in br_stp_start()
162 	else if (br->bridge_forward_delay > BR_MAX_FORWARD_DELAY)  in br_stp_start()
163 		__br_set_forward_delay(br, BR_MAX_FORWARD_DELAY);  in br_stp_start()
166 		br->stp_enabled = BR_USER_STP;  in br_stp_start()
167 		br_debug(br, "userspace STP started\n");  in br_stp_start()
169 		br->stp_enabled = BR_KERNEL_STP;  in br_stp_start()
170 		br_debug(br, "using kernel STP\n");  in br_stp_start()
173 		if (br->dev->flags & IFF_UP)  in br_stp_start()
174 			mod_timer(&br->hello_timer, jiffies + br->hello_time);  in br_stp_start()
175 		br_port_state_selection(br);  in br_stp_start()
178 	spin_unlock_bh(&br->lock);  in br_stp_start()
181 static void br_stp_stop(struct net_bridge *br)  in br_stp_stop()  argument
185 	if (br->stp_enabled == BR_USER_STP) {  in br_stp_stop()
186 		err = br_stp_call_user(br, "stop");  in br_stp_stop()
188 			br_err(br, "failed to stop userspace STP (%d)\n", err);  in br_stp_stop()
191 		spin_lock_bh(&br->lock);  in br_stp_stop()
192 		br_port_state_selection(br);  in br_stp_stop()
193 		spin_unlock_bh(&br->lock);  in br_stp_stop()
196 	br->stp_enabled = BR_NO_STP;  in br_stp_stop()
199 int br_stp_set_enabled(struct net_bridge *br, unsigned long val,  in br_stp_set_enabled()  argument
204 	if (br_mrp_enabled(br)) {  in br_stp_set_enabled()
211 		if (br->stp_enabled == BR_NO_STP)  in br_stp_set_enabled()
212 			br_stp_start(br);  in br_stp_set_enabled()
214 		if (br->stp_enabled != BR_NO_STP)  in br_stp_set_enabled()
215 			br_stp_stop(br);  in br_stp_set_enabled()
222 void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *addr)  in br_stp_change_bridge_id()  argument
230 	wasroot = br_is_root_bridge(br);  in br_stp_change_bridge_id()
232 	br_fdb_change_mac_address(br, addr);  in br_stp_change_bridge_id()
234 	memcpy(oldaddr, br->bridge_id.addr, ETH_ALEN);  in br_stp_change_bridge_id()
235 	memcpy(br->bridge_id.addr, addr, ETH_ALEN);  in br_stp_change_bridge_id()
236 	eth_hw_addr_set(br->dev, addr);  in br_stp_change_bridge_id()
238 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_change_bridge_id()
246 	br_configuration_update(br);  in br_stp_change_bridge_id()
247 	br_port_state_selection(br);  in br_stp_change_bridge_id()
248 	if (br_is_root_bridge(br) && !wasroot)  in br_stp_change_bridge_id()
249 		br_become_root_bridge(br);  in br_stp_change_bridge_id()
256 bool br_stp_recalculate_bridge_id(struct net_bridge *br)  in br_stp_recalculate_bridge_id()  argument
264 	if (br->dev->addr_assign_type == NET_ADDR_SET)  in br_stp_recalculate_bridge_id()
267 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_recalculate_bridge_id()
274 	if (ether_addr_equal(br->bridge_id.addr, addr))  in br_stp_recalculate_bridge_id()
277 	br_stp_change_bridge_id(br, addr);  in br_stp_recalculate_bridge_id()
282 void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio)  in br_stp_set_bridge_priority()  argument
287 	spin_lock_bh(&br->lock);  in br_stp_set_bridge_priority()
288 	wasroot = br_is_root_bridge(br);  in br_stp_set_bridge_priority()
290 	list_for_each_entry(p, &br->port_list, list) {  in br_stp_set_bridge_priority()
299 	br->bridge_id.prio[0] = (newprio >> 8) & 0xFF;  in br_stp_set_bridge_priority()
300 	br->bridge_id.prio[1] = newprio & 0xFF;  in br_stp_set_bridge_priority()
301 	br_configuration_update(br);  in br_stp_set_bridge_priority()
302 	br_port_state_selection(br);  in br_stp_set_bridge_priority()
303 	if (br_is_root_bridge(br) && !wasroot)  in br_stp_set_bridge_priority()
304 		br_become_root_bridge(br);  in br_stp_set_bridge_priority()
305 	spin_unlock_bh(&br->lock);  in br_stp_set_bridge_priority()
322 	if (!memcmp(&p->br->bridge_id, &p->designated_bridge, 8) &&  in br_stp_set_port_priority()
325 		br_port_state_selection(p->br);  in br_stp_set_port_priority()
340 	br_configuration_update(p->br);  in br_stp_set_path_cost()
341 	br_port_state_selection(p->br);  in br_stp_set_path_cost()