Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
1da177e4 LT |
2 | /* |
3 | * Device handling code | |
4 | * Linux ethernet bridge | |
5 | * | |
6 | * Authors: | |
7 | * Lennert Buytenhek <buytenh@gnu.org> | |
1da177e4 LT |
8 | */ |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/netdevice.h> | |
c06ee961 | 12 | #include <linux/netpoll.h> |
4505a3ef | 13 | #include <linux/etherdevice.h> |
edb5e46f | 14 | #include <linux/ethtool.h> |
c06ee961 | 15 | #include <linux/list.h> |
ea2d9b41 | 16 | #include <linux/netfilter_bridge.h> |
4505a3ef | 17 | |
7c0f6ba6 | 18 | #include <linux/uaccess.h> |
1da177e4 LT |
19 | #include "br_private.h" |
20 | ||
161f65ba VY |
21 | #define COMMON_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA | \ |
22 | NETIF_F_GSO_MASK | NETIF_F_HW_CSUM) | |
23 | ||
1a4ba64d PNA |
24 | const struct nf_br_ops __rcu *nf_br_ops __read_mostly; |
25 | EXPORT_SYMBOL_GPL(nf_br_ops); | |
26 | ||
eeaf61d8 | 27 | /* net device transmit always called with BH disabled */ |
6fef4c0c | 28 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) |
1da177e4 LT |
29 | { |
30 | struct net_bridge *br = netdev_priv(dev); | |
1da177e4 | 31 | struct net_bridge_fdb_entry *dst; |
c4fcb78c | 32 | struct net_bridge_mdb_entry *mdst; |
8f84985f | 33 | struct pcpu_sw_netstats *brstats = this_cpu_ptr(br->stats); |
1a4ba64d | 34 | const struct nf_br_ops *nf_ops; |
a580c76d | 35 | u8 state = BR_STATE_FORWARDING; |
31a4562d | 36 | const unsigned char *dest; |
78851988 | 37 | u16 vid = 0; |
1da177e4 | 38 | |
c03307ea | 39 | rcu_read_lock(); |
1a4ba64d PNA |
40 | nf_ops = rcu_dereference(nf_br_ops); |
41 | if (nf_ops && nf_ops->br_dev_xmit_hook(skb)) { | |
c03307ea | 42 | rcu_read_unlock(); |
ea2d9b41 BDS |
43 | return NETDEV_TX_OK; |
44 | } | |
ea2d9b41 | 45 | |
406818ff | 46 | u64_stats_update_begin(&brstats->syncp); |
14bb4789 | 47 | brstats->tx_packets++; |
48 | brstats->tx_bytes += skb->len; | |
406818ff | 49 | u64_stats_update_end(&brstats->syncp); |
6088a539 | 50 | |
f1c2eddf | 51 | br_switchdev_frame_unmark(skb); |
14bb4789 | 52 | BR_INPUT_SKB_CB(skb)->brdev = dev; |
3c171f49 | 53 | BR_INPUT_SKB_CB(skb)->frag_max_size = 0; |
1da177e4 | 54 | |
459a98ed | 55 | skb_reset_mac_header(skb); |
1da177e4 LT |
56 | skb_pull(skb, ETH_HLEN); |
57 | ||
a580c76d | 58 | if (!br_allowed_ingress(br, br_vlan_group_rcu(br), skb, &vid, &state)) |
12464bb8 TM |
59 | goto out; |
60 | ||
057658cb | 61 | if (IS_ENABLED(CONFIG_INET) && |
823d81b0 NA |
62 | (eth_hdr(skb)->h_proto == htons(ETH_P_ARP) || |
63 | eth_hdr(skb)->h_proto == htons(ETH_P_RARP)) && | |
c69c2cd4 | 64 | br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED)) { |
057658cb | 65 | br_do_proxy_suppress_arp(skb, br, vid, NULL); |
ed842fae RP |
66 | } else if (IS_ENABLED(CONFIG_IPV6) && |
67 | skb->protocol == htons(ETH_P_IPV6) && | |
c69c2cd4 | 68 | br_opt_get(br, BROPT_NEIGH_SUPPRESS_ENABLED) && |
ed842fae RP |
69 | pskb_may_pull(skb, sizeof(struct ipv6hdr) + |
70 | sizeof(struct nd_msg)) && | |
71 | ipv6_hdr(skb)->nexthdr == IPPROTO_ICMPV6) { | |
72 | struct nd_msg *msg, _msg; | |
73 | ||
74 | msg = br_is_nd_neigh_msg(skb, &_msg); | |
75 | if (msg) | |
76 | br_do_suppress_nd(skb, br, vid, NULL, msg); | |
057658cb RP |
77 | } |
78 | ||
31a4562d | 79 | dest = eth_hdr(skb)->h_dest; |
37b090e6 | 80 | if (is_broadcast_ether_addr(dest)) { |
8addd5e7 | 81 | br_flood(br, skb, BR_PKT_BROADCAST, false, true); |
37b090e6 | 82 | } else if (is_multicast_ether_addr(dest)) { |
91d2c34a | 83 | if (unlikely(netpoll_tx_running(dev))) { |
8addd5e7 | 84 | br_flood(br, skb, BR_PKT_MULTICAST, false, true); |
91d2c34a HX |
85 | goto out; |
86 | } | |
06499098 | 87 | if (br_multicast_rcv(br, NULL, skb, vid)) { |
6d1d1d39 | 88 | kfree_skb(skb); |
c4fcb78c | 89 | goto out; |
6d1d1d39 | 90 | } |
c4fcb78c | 91 | |
fbca58a2 | 92 | mdst = br_mdb_get(br, skb, vid); |
b00589af | 93 | if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) && |
cc0fdd80 | 94 | br_multicast_querier_exists(br, eth_hdr(skb))) |
37b090e6 | 95 | br_multicast_flood(mdst, skb, false, true); |
c4fcb78c | 96 | else |
8addd5e7 | 97 | br_flood(br, skb, BR_PKT_MULTICAST, false, true); |
bfd0aeac | 98 | } else if ((dst = br_fdb_find_rcu(br, dest, vid)) != NULL) { |
37b090e6 NA |
99 | br_forward(dst->dst, skb, false, true); |
100 | } else { | |
8addd5e7 | 101 | br_flood(br, skb, BR_PKT_UNICAST, false, true); |
37b090e6 | 102 | } |
c4fcb78c | 103 | out: |
eeaf61d8 | 104 | rcu_read_unlock(); |
6ed10654 | 105 | return NETDEV_TX_OK; |
1da177e4 LT |
106 | } |
107 | ||
845e0ebb CW |
108 | static struct lock_class_key bridge_netdev_addr_lock_key; |
109 | ||
110 | static void br_set_lockdep_class(struct net_device *dev) | |
111 | { | |
112 | lockdep_set_class(&dev->addr_list_lock, &bridge_netdev_addr_lock_key); | |
113 | } | |
114 | ||
bb900b27 | 115 | static int br_dev_init(struct net_device *dev) |
116 | { | |
117 | struct net_bridge *br = netdev_priv(dev); | |
5be5a2df | 118 | int err; |
bb900b27 | 119 | |
1c213bd2 | 120 | br->stats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
bb900b27 | 121 | if (!br->stats) |
122 | return -ENOMEM; | |
123 | ||
eb793583 NA |
124 | err = br_fdb_hash_init(br); |
125 | if (err) { | |
126 | free_percpu(br->stats); | |
127 | return err; | |
128 | } | |
129 | ||
19e3a9c9 NA |
130 | err = br_mdb_hash_init(br); |
131 | if (err) { | |
132 | free_percpu(br->stats); | |
133 | br_fdb_hash_fini(br); | |
134 | return err; | |
135 | } | |
136 | ||
5be5a2df | 137 | err = br_vlan_init(br); |
1080ab95 | 138 | if (err) { |
5be5a2df | 139 | free_percpu(br->stats); |
19e3a9c9 | 140 | br_mdb_hash_fini(br); |
eb793583 | 141 | br_fdb_hash_fini(br); |
1080ab95 NA |
142 | return err; |
143 | } | |
144 | ||
145 | err = br_multicast_init_stats(br); | |
146 | if (err) { | |
147 | free_percpu(br->stats); | |
148 | br_vlan_flush(br); | |
19e3a9c9 | 149 | br_mdb_hash_fini(br); |
eb793583 | 150 | br_fdb_hash_fini(br); |
1080ab95 | 151 | } |
5be5a2df | 152 | |
845e0ebb | 153 | br_set_lockdep_class(dev); |
5be5a2df | 154 | return err; |
bb900b27 | 155 | } |
156 | ||
b6fe0440 IS |
157 | static void br_dev_uninit(struct net_device *dev) |
158 | { | |
159 | struct net_bridge *br = netdev_priv(dev); | |
160 | ||
b1b9d366 | 161 | br_multicast_dev_del(br); |
b6fe0440 IS |
162 | br_multicast_uninit_stats(br); |
163 | br_vlan_flush(br); | |
19e3a9c9 | 164 | br_mdb_hash_fini(br); |
eb793583 | 165 | br_fdb_hash_fini(br); |
b6fe0440 IS |
166 | free_percpu(br->stats); |
167 | } | |
168 | ||
1da177e4 LT |
169 | static int br_dev_open(struct net_device *dev) |
170 | { | |
81d35307 | 171 | struct net_bridge *br = netdev_priv(dev); |
1da177e4 | 172 | |
c4d27ef9 | 173 | netdev_update_features(dev); |
81d35307 SH |
174 | netif_start_queue(dev); |
175 | br_stp_enable_bridge(br); | |
3fe2d7c7 | 176 | br_multicast_open(br); |
1da177e4 LT |
177 | |
178 | return 0; | |
179 | } | |
180 | ||
181 | static void br_dev_set_multicast_list(struct net_device *dev) | |
182 | { | |
183 | } | |
184 | ||
2796d0c6 VY |
185 | static void br_dev_change_rx_flags(struct net_device *dev, int change) |
186 | { | |
187 | if (change & IFF_PROMISC) | |
188 | br_manage_promisc(netdev_priv(dev)); | |
189 | } | |
190 | ||
1da177e4 LT |
191 | static int br_dev_stop(struct net_device *dev) |
192 | { | |
3fe2d7c7 HX |
193 | struct net_bridge *br = netdev_priv(dev); |
194 | ||
195 | br_stp_disable_bridge(br); | |
196 | br_multicast_stop(br); | |
1da177e4 LT |
197 | |
198 | netif_stop_queue(dev); | |
199 | ||
200 | return 0; | |
201 | } | |
202 | ||
bc1f4470 | 203 | static void br_get_stats64(struct net_device *dev, |
204 | struct rtnl_link_stats64 *stats) | |
14bb4789 | 205 | { |
206 | struct net_bridge *br = netdev_priv(dev); | |
8f84985f | 207 | struct pcpu_sw_netstats tmp, sum = { 0 }; |
14bb4789 | 208 | unsigned int cpu; |
209 | ||
210 | for_each_possible_cpu(cpu) { | |
406818ff | 211 | unsigned int start; |
8f84985f | 212 | const struct pcpu_sw_netstats *bstats |
14bb4789 | 213 | = per_cpu_ptr(br->stats, cpu); |
406818ff | 214 | do { |
57a7744e | 215 | start = u64_stats_fetch_begin_irq(&bstats->syncp); |
406818ff | 216 | memcpy(&tmp, bstats, sizeof(tmp)); |
57a7744e | 217 | } while (u64_stats_fetch_retry_irq(&bstats->syncp, start)); |
406818ff ED |
218 | sum.tx_bytes += tmp.tx_bytes; |
219 | sum.tx_packets += tmp.tx_packets; | |
220 | sum.rx_bytes += tmp.rx_bytes; | |
221 | sum.rx_packets += tmp.rx_packets; | |
14bb4789 | 222 | } |
223 | ||
224 | stats->tx_bytes = sum.tx_bytes; | |
225 | stats->tx_packets = sum.tx_packets; | |
226 | stats->rx_bytes = sum.rx_bytes; | |
227 | stats->rx_packets = sum.rx_packets; | |
14bb4789 | 228 | } |
229 | ||
1da177e4 LT |
230 | static int br_change_mtu(struct net_device *dev, int new_mtu) |
231 | { | |
4adf0af6 | 232 | struct net_bridge *br = netdev_priv(dev); |
f40aa233 | 233 | |
1da177e4 | 234 | dev->mtu = new_mtu; |
4adf0af6 | 235 | |
804b854d | 236 | /* this flag will be cleared if the MTU was automatically adjusted */ |
3341d917 | 237 | br_opt_toggle(br, BROPT_MTU_SET_BY_USER, true); |
34666d46 | 238 | #if IS_ENABLED(CONFIG_BRIDGE_NETFILTER) |
4adf0af6 | 239 | /* remember the MTU in the rtable for PMTU */ |
defb3519 | 240 | dst_metric_set(&br->fake_rtable.dst, RTAX_MTU, new_mtu); |
4adf0af6 SW |
241 | #endif |
242 | ||
1da177e4 LT |
243 | return 0; |
244 | } | |
245 | ||
ffe1d49c | 246 | /* Allow setting mac address to any valid ethernet address. */ |
4505a3ef SH |
247 | static int br_set_mac_address(struct net_device *dev, void *p) |
248 | { | |
249 | struct net_bridge *br = netdev_priv(dev); | |
250 | struct sockaddr *addr = p; | |
ffe1d49c SH |
251 | |
252 | if (!is_valid_ether_addr(addr->sa_data)) | |
7ca1e11a | 253 | return -EADDRNOTAVAIL; |
4505a3ef | 254 | |
c4b4c421 NA |
255 | /* dev_set_mac_addr() can be called by a master device on bridge's |
256 | * NETDEV_UNREGISTER, but since it's being destroyed do nothing | |
257 | */ | |
258 | if (dev->reg_state != NETREG_REGISTERED) | |
259 | return -EBUSY; | |
260 | ||
4505a3ef | 261 | spin_lock_bh(&br->lock); |
9a7b6ef9 | 262 | if (!ether_addr_equal(dev->dev_addr, addr->sa_data)) { |
a3ebb7ef | 263 | /* Mac address will be changed in br_stp_change_bridge_id(). */ |
43598813 | 264 | br_stp_change_bridge_id(br, addr->sa_data); |
265 | } | |
4505a3ef SH |
266 | spin_unlock_bh(&br->lock); |
267 | ||
ffe1d49c | 268 | return 0; |
4505a3ef SH |
269 | } |
270 | ||
edb5e46f SH |
271 | static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
272 | { | |
7826d43f JP |
273 | strlcpy(info->driver, "bridge", sizeof(info->driver)); |
274 | strlcpy(info->version, BR_VERSION, sizeof(info->version)); | |
275 | strlcpy(info->fw_version, "N/A", sizeof(info->fw_version)); | |
276 | strlcpy(info->bus_info, "N/A", sizeof(info->bus_info)); | |
edb5e46f SH |
277 | } |
278 | ||
542575fe MS |
279 | static int br_get_link_ksettings(struct net_device *dev, |
280 | struct ethtool_link_ksettings *cmd) | |
281 | { | |
282 | struct net_bridge *br = netdev_priv(dev); | |
283 | struct net_bridge_port *p; | |
284 | ||
285 | cmd->base.duplex = DUPLEX_UNKNOWN; | |
286 | cmd->base.port = PORT_OTHER; | |
287 | cmd->base.speed = SPEED_UNKNOWN; | |
288 | ||
289 | list_for_each_entry(p, &br->port_list, list) { | |
290 | struct ethtool_link_ksettings ecmd; | |
291 | struct net_device *pdev = p->dev; | |
292 | ||
293 | if (!netif_running(pdev) || !netif_oper_up(pdev)) | |
294 | continue; | |
295 | ||
296 | if (__ethtool_get_link_ksettings(pdev, &ecmd)) | |
297 | continue; | |
298 | ||
299 | if (ecmd.base.speed == (__u32)SPEED_UNKNOWN) | |
300 | continue; | |
301 | ||
302 | if (cmd->base.speed == (__u32)SPEED_UNKNOWN || | |
303 | cmd->base.speed < ecmd.base.speed) | |
304 | cmd->base.speed = ecmd.base.speed; | |
305 | } | |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
c8f44aff MM |
310 | static netdev_features_t br_fix_features(struct net_device *dev, |
311 | netdev_features_t features) | |
edb5e46f SH |
312 | { |
313 | struct net_bridge *br = netdev_priv(dev); | |
314 | ||
c4d27ef9 | 315 | return br_features_recompute(br, features); |
361ff8a6 JG |
316 | } |
317 | ||
c06ee961 | 318 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a | 319 | static void br_poll_controller(struct net_device *br_dev) |
c06ee961 | 320 | { |
c06ee961 WC |
321 | } |
322 | ||
91d2c34a | 323 | static void br_netpoll_cleanup(struct net_device *dev) |
c06ee961 | 324 | { |
91d2c34a | 325 | struct net_bridge *br = netdev_priv(dev); |
4e3828c4 | 326 | struct net_bridge_port *p; |
c06ee961 | 327 | |
4e3828c4 | 328 | list_for_each_entry(p, &br->port_list, list) |
91d2c34a | 329 | br_netpoll_disable(p); |
c06ee961 WC |
330 | } |
331 | ||
a8779ec1 | 332 | static int __br_netpoll_enable(struct net_bridge_port *p) |
dbe17307 CW |
333 | { |
334 | struct netpoll *np; | |
335 | int err; | |
336 | ||
a8779ec1 | 337 | np = kzalloc(sizeof(*p->np), GFP_KERNEL); |
dbe17307 CW |
338 | if (!np) |
339 | return -ENOMEM; | |
340 | ||
a8779ec1 | 341 | err = __netpoll_setup(np, p->dev); |
dbe17307 CW |
342 | if (err) { |
343 | kfree(np); | |
344 | return err; | |
345 | } | |
346 | ||
347 | p->np = np; | |
348 | return err; | |
349 | } | |
350 | ||
a8779ec1 | 351 | int br_netpoll_enable(struct net_bridge_port *p) |
dbe17307 CW |
352 | { |
353 | if (!p->br->dev->npinfo) | |
354 | return 0; | |
355 | ||
a8779ec1 | 356 | return __br_netpoll_enable(p); |
dbe17307 CW |
357 | } |
358 | ||
a8779ec1 | 359 | static int br_netpoll_setup(struct net_device *dev, struct netpoll_info *ni) |
c06ee961 | 360 | { |
cfb478da | 361 | struct net_bridge *br = netdev_priv(dev); |
4e3828c4 | 362 | struct net_bridge_port *p; |
91d2c34a | 363 | int err = 0; |
c06ee961 | 364 | |
4e3828c4 | 365 | list_for_each_entry(p, &br->port_list, list) { |
91d2c34a HX |
366 | if (!p->dev) |
367 | continue; | |
a8779ec1 | 368 | err = __br_netpoll_enable(p); |
91d2c34a HX |
369 | if (err) |
370 | goto fail; | |
c06ee961 | 371 | } |
91d2c34a HX |
372 | |
373 | out: | |
374 | return err; | |
375 | ||
376 | fail: | |
377 | br_netpoll_cleanup(dev); | |
378 | goto out; | |
c06ee961 WC |
379 | } |
380 | ||
91d2c34a | 381 | void br_netpoll_disable(struct net_bridge_port *p) |
c06ee961 | 382 | { |
91d2c34a HX |
383 | struct netpoll *np = p->np; |
384 | ||
385 | if (!np) | |
386 | return; | |
387 | ||
388 | p->np = NULL; | |
389 | ||
c9fbd71f | 390 | __netpoll_free(np); |
c06ee961 WC |
391 | } |
392 | ||
393 | #endif | |
394 | ||
33eaf2a6 DA |
395 | static int br_add_slave(struct net_device *dev, struct net_device *slave_dev, |
396 | struct netlink_ext_ack *extack) | |
afc6151a JP |
397 | |
398 | { | |
399 | struct net_bridge *br = netdev_priv(dev); | |
400 | ||
ca752be0 | 401 | return br_add_if(br, slave_dev, extack); |
afc6151a JP |
402 | } |
403 | ||
404 | static int br_del_slave(struct net_device *dev, struct net_device *slave_dev) | |
405 | { | |
406 | struct net_bridge *br = netdev_priv(dev); | |
407 | ||
408 | return br_del_if(br, slave_dev); | |
409 | } | |
410 | ||
a2dbb882 | 411 | static const struct ethtool_ops br_ethtool_ops = { |
542575fe MS |
412 | .get_drvinfo = br_getinfo, |
413 | .get_link = ethtool_op_get_link, | |
414 | .get_link_ksettings = br_get_link_ksettings, | |
edb5e46f SH |
415 | }; |
416 | ||
a2dbb882 SH |
417 | static const struct net_device_ops br_netdev_ops = { |
418 | .ndo_open = br_dev_open, | |
419 | .ndo_stop = br_dev_stop, | |
bb900b27 | 420 | .ndo_init = br_dev_init, |
b6fe0440 | 421 | .ndo_uninit = br_dev_uninit, |
00829823 | 422 | .ndo_start_xmit = br_dev_xmit, |
406818ff | 423 | .ndo_get_stats64 = br_get_stats64, |
00829823 | 424 | .ndo_set_mac_address = br_set_mac_address, |
afc4b13d | 425 | .ndo_set_rx_mode = br_dev_set_multicast_list, |
2796d0c6 | 426 | .ndo_change_rx_flags = br_dev_change_rx_flags, |
00829823 SH |
427 | .ndo_change_mtu = br_change_mtu, |
428 | .ndo_do_ioctl = br_dev_ioctl, | |
c06ee961 | 429 | #ifdef CONFIG_NET_POLL_CONTROLLER |
91d2c34a | 430 | .ndo_netpoll_setup = br_netpoll_setup, |
c06ee961 WC |
431 | .ndo_netpoll_cleanup = br_netpoll_cleanup, |
432 | .ndo_poll_controller = br_poll_controller, | |
433 | #endif | |
afc6151a JP |
434 | .ndo_add_slave = br_add_slave, |
435 | .ndo_del_slave = br_del_slave, | |
c4d27ef9 | 436 | .ndo_fix_features = br_fix_features, |
77162022 JF |
437 | .ndo_fdb_add = br_fdb_add, |
438 | .ndo_fdb_del = br_fdb_delete, | |
439 | .ndo_fdb_dump = br_fdb_dump, | |
47674562 | 440 | .ndo_fdb_get = br_fdb_get, |
e5a55a89 JF |
441 | .ndo_bridge_getlink = br_getlink, |
442 | .ndo_bridge_setlink = br_setlink, | |
407af329 | 443 | .ndo_bridge_dellink = br_dellink, |
66780530 | 444 | .ndo_features_check = passthru_features_check, |
a2dbb882 SH |
445 | }; |
446 | ||
bb900b27 | 447 | static struct device_type br_type = { |
448 | .name = "bridge", | |
449 | }; | |
450 | ||
1da177e4 LT |
451 | void br_dev_setup(struct net_device *dev) |
452 | { | |
bb900b27 | 453 | struct net_bridge *br = netdev_priv(dev); |
454 | ||
7ce5d222 | 455 | eth_hw_addr_random(dev); |
1da177e4 LT |
456 | ether_setup(dev); |
457 | ||
a2dbb882 | 458 | dev->netdev_ops = &br_netdev_ops; |
cf124db5 | 459 | dev->needs_free_netdev = true; |
7ad24ea4 | 460 | dev->ethtool_ops = &br_ethtool_ops; |
bb900b27 | 461 | SET_NETDEV_DEVTYPE(dev, &br_type); |
ccecb2a4 | 462 | dev->priv_flags = IFF_EBRIDGE | IFF_NO_QUEUE; |
edb5e46f | 463 | |
161f65ba | 464 | dev->features = COMMON_FEATURES | NETIF_F_LLTX | NETIF_F_NETNS_LOCAL | |
1c5abb6c TM |
465 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_STAG_TX; |
466 | dev->hw_features = COMMON_FEATURES | NETIF_F_HW_VLAN_CTAG_TX | | |
467 | NETIF_F_HW_VLAN_STAG_TX; | |
161f65ba | 468 | dev->vlan_features = COMMON_FEATURES; |
bb900b27 | 469 | |
470 | br->dev = dev; | |
471 | spin_lock_init(&br->lock); | |
472 | INIT_LIST_HEAD(&br->port_list); | |
eb793583 | 473 | INIT_HLIST_HEAD(&br->fdb_list); |
65369933 HV |
474 | #if IS_ENABLED(CONFIG_BRIDGE_MRP) |
475 | INIT_LIST_HEAD(&br->mrp_list); | |
476 | #endif | |
bb900b27 | 477 | spin_lock_init(&br->hash_lock); |
478 | ||
479 | br->bridge_id.prio[0] = 0x80; | |
480 | br->bridge_id.prio[1] = 0x00; | |
481 | ||
05428729 | 482 | ether_addr_copy(br->group_addr, eth_stp_addr); |
bb900b27 | 483 | |
bb900b27 | 484 | br->stp_enabled = BR_NO_STP; |
515853cc | 485 | br->group_fwd_mask = BR_GROUPFWD_DEFAULT; |
f2808d22 | 486 | br->group_fwd_mask_required = BR_GROUPFWD_DEFAULT; |
515853cc | 487 | |
bb900b27 | 488 | br->designated_root = br->bridge_id; |
489 | br->bridge_max_age = br->max_age = 20 * HZ; | |
490 | br->bridge_hello_time = br->hello_time = 2 * HZ; | |
491 | br->bridge_forward_delay = br->forward_delay = 15 * HZ; | |
34d8acd8 | 492 | br->bridge_ageing_time = br->ageing_time = BR_DEFAULT_AGEING_TIME; |
91572088 | 493 | dev->max_mtu = ETH_MAX_MTU; |
bb900b27 | 494 | |
495 | br_netfilter_rtable_init(br); | |
496 | br_stp_timer_init(br); | |
497 | br_multicast_init(br); | |
f7cdee8a | 498 | INIT_DELAYED_WORK(&br->gc_work, br_fdb_cleanup); |
1da177e4 | 499 | } |