Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Device handling code |
| 3 | * Linux ethernet bridge |
| 4 | * |
| 5 | * Authors: |
| 6 | * Lennert Buytenhek <buytenh@gnu.org> |
| 7 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License |
| 10 | * as published by the Free Software Foundation; either version |
| 11 | * 2 of the License, or (at your option) any later version. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/kernel.h> |
| 15 | #include <linux/netdevice.h> |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 16 | #include <linux/netpoll.h> |
Stephen Hemminger | 4505a3e | 2005-12-21 18:51:49 -0800 | [diff] [blame] | 17 | #include <linux/etherdevice.h> |
Stephen Hemminger | edb5e46 | 2005-12-21 19:00:58 -0800 | [diff] [blame] | 18 | #include <linux/ethtool.h> |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 19 | #include <linux/list.h> |
Bart De Schuymer | ea2d9b4 | 2010-04-15 12:14:51 +0200 | [diff] [blame] | 20 | #include <linux/netfilter_bridge.h> |
Stephen Hemminger | 4505a3e | 2005-12-21 18:51:49 -0800 | [diff] [blame] | 21 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <asm/uaccess.h> |
| 23 | #include "br_private.h" |
| 24 | |
stephen hemminger | eeaf61d | 2010-07-27 08:26:30 +0000 | [diff] [blame] | 25 | /* net device transmit always called with BH disabled */ |
Stephen Hemminger | 6fef4c0 | 2009-08-31 19:50:41 +0000 | [diff] [blame] | 26 | netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | { |
| 28 | struct net_bridge *br = netdev_priv(dev); |
| 29 | const unsigned char *dest = skb->data; |
| 30 | struct net_bridge_fdb_entry *dst; |
Herbert Xu | c4fcb78 | 2010-02-27 19:41:48 +0000 | [diff] [blame] | 31 | struct net_bridge_mdb_entry *mdst; |
stephen hemminger | 14bb478 | 2010-03-02 13:32:09 +0000 | [diff] [blame] | 32 | struct br_cpu_netstats *brstats = this_cpu_ptr(br->stats); |
| 33 | |
Bart De Schuymer | ea2d9b4 | 2010-04-15 12:14:51 +0200 | [diff] [blame] | 34 | #ifdef CONFIG_BRIDGE_NETFILTER |
| 35 | if (skb->nf_bridge && (skb->nf_bridge->mask & BRNF_BRIDGED_DNAT)) { |
| 36 | br_nf_pre_routing_finish_bridge_slow(skb); |
| 37 | return NETDEV_TX_OK; |
| 38 | } |
| 39 | #endif |
| 40 | |
Herbert Xu | 6088a53 | 2010-02-27 19:41:42 +0000 | [diff] [blame] | 41 | BR_INPUT_SKB_CB(skb)->brdev = dev; |
| 42 | |
Arnaldo Carvalho de Melo | 459a98e | 2007-03-19 15:30:44 -0700 | [diff] [blame] | 43 | skb_reset_mac_header(skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | skb_pull(skb, ETH_HLEN); |
| 45 | |
Ashish Sharma | 21ab850 | 2011-10-07 17:54:16 -0700 | [diff] [blame^] | 46 | u64_stats_update_begin(&brstats->syncp); |
| 47 | brstats->tx_packets++; |
| 48 | /* Exclude ETH_HLEN from byte stats for consistency with Rx chain */ |
| 49 | brstats->tx_bytes += skb->len; |
| 50 | u64_stats_update_end(&brstats->syncp); |
| 51 | |
stephen hemminger | eeaf61d | 2010-07-27 08:26:30 +0000 | [diff] [blame] | 52 | rcu_read_lock(); |
Herbert Xu | 4466146 | 2011-07-05 13:58:33 +0000 | [diff] [blame] | 53 | if (is_broadcast_ether_addr(dest)) |
| 54 | br_flood_deliver(br, skb); |
| 55 | else if (is_multicast_ether_addr(dest)) { |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 56 | if (unlikely(netpoll_tx_running(dev))) { |
| 57 | br_flood_deliver(br, skb); |
| 58 | goto out; |
| 59 | } |
Herbert Xu | 6d1d1d3 | 2010-07-29 01:12:31 +0000 | [diff] [blame] | 60 | if (br_multicast_rcv(br, NULL, skb)) { |
| 61 | kfree_skb(skb); |
Herbert Xu | c4fcb78 | 2010-02-27 19:41:48 +0000 | [diff] [blame] | 62 | goto out; |
Herbert Xu | 6d1d1d3 | 2010-07-29 01:12:31 +0000 | [diff] [blame] | 63 | } |
Herbert Xu | c4fcb78 | 2010-02-27 19:41:48 +0000 | [diff] [blame] | 64 | |
| 65 | mdst = br_mdb_get(br, skb); |
YOSHIFUJI Hideaki / 吉藤英明 | 32dec5d | 2010-03-15 21:51:18 +0000 | [diff] [blame] | 66 | if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) |
Herbert Xu | c4fcb78 | 2010-02-27 19:41:48 +0000 | [diff] [blame] | 67 | br_multicast_deliver(mdst, skb); |
| 68 | else |
| 69 | br_flood_deliver(br, skb); |
| 70 | } else if ((dst = __br_fdb_get(br, dest)) != NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | br_deliver(dst->dst, skb); |
| 72 | else |
Herbert Xu | e081e1e | 2007-09-16 16:20:48 -0700 | [diff] [blame] | 73 | br_flood_deliver(br, skb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | |
Herbert Xu | c4fcb78 | 2010-02-27 19:41:48 +0000 | [diff] [blame] | 75 | out: |
stephen hemminger | eeaf61d | 2010-07-27 08:26:30 +0000 | [diff] [blame] | 76 | rcu_read_unlock(); |
Patrick McHardy | 6ed1065 | 2009-06-23 06:03:08 +0000 | [diff] [blame] | 77 | return NETDEV_TX_OK; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | } |
| 79 | |
stephen hemminger | bb900b2 | 2011-04-04 14:03:32 +0000 | [diff] [blame] | 80 | static int br_dev_init(struct net_device *dev) |
| 81 | { |
| 82 | struct net_bridge *br = netdev_priv(dev); |
| 83 | |
| 84 | br->stats = alloc_percpu(struct br_cpu_netstats); |
| 85 | if (!br->stats) |
| 86 | return -ENOMEM; |
| 87 | |
| 88 | return 0; |
| 89 | } |
| 90 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | static int br_dev_open(struct net_device *dev) |
| 92 | { |
Stephen Hemminger | 81d3530 | 2005-05-29 14:15:17 -0700 | [diff] [blame] | 93 | struct net_bridge *br = netdev_priv(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | |
Michał Mirosław | c4d27ef | 2011-04-22 06:31:16 +0000 | [diff] [blame] | 95 | netdev_update_features(dev); |
Stephen Hemminger | 81d3530 | 2005-05-29 14:15:17 -0700 | [diff] [blame] | 96 | netif_start_queue(dev); |
| 97 | br_stp_enable_bridge(br); |
Herbert Xu | 3fe2d7c | 2010-02-28 00:49:38 -0800 | [diff] [blame] | 98 | br_multicast_open(br); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | static void br_dev_set_multicast_list(struct net_device *dev) |
| 104 | { |
| 105 | } |
| 106 | |
| 107 | static int br_dev_stop(struct net_device *dev) |
| 108 | { |
Herbert Xu | 3fe2d7c | 2010-02-28 00:49:38 -0800 | [diff] [blame] | 109 | struct net_bridge *br = netdev_priv(dev); |
| 110 | |
| 111 | br_stp_disable_bridge(br); |
| 112 | br_multicast_stop(br); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
| 114 | netif_stop_queue(dev); |
| 115 | |
| 116 | return 0; |
| 117 | } |
| 118 | |
Eric Dumazet | 2817273 | 2010-07-07 14:58:56 -0700 | [diff] [blame] | 119 | static struct rtnl_link_stats64 *br_get_stats64(struct net_device *dev, |
| 120 | struct rtnl_link_stats64 *stats) |
stephen hemminger | 14bb478 | 2010-03-02 13:32:09 +0000 | [diff] [blame] | 121 | { |
| 122 | struct net_bridge *br = netdev_priv(dev); |
Eric Dumazet | 406818f | 2010-06-23 13:00:48 -0700 | [diff] [blame] | 123 | struct br_cpu_netstats tmp, sum = { 0 }; |
stephen hemminger | 14bb478 | 2010-03-02 13:32:09 +0000 | [diff] [blame] | 124 | unsigned int cpu; |
| 125 | |
| 126 | for_each_possible_cpu(cpu) { |
Eric Dumazet | 406818f | 2010-06-23 13:00:48 -0700 | [diff] [blame] | 127 | unsigned int start; |
stephen hemminger | 14bb478 | 2010-03-02 13:32:09 +0000 | [diff] [blame] | 128 | const struct br_cpu_netstats *bstats |
| 129 | = per_cpu_ptr(br->stats, cpu); |
Eric Dumazet | 406818f | 2010-06-23 13:00:48 -0700 | [diff] [blame] | 130 | do { |
| 131 | start = u64_stats_fetch_begin(&bstats->syncp); |
| 132 | memcpy(&tmp, bstats, sizeof(tmp)); |
| 133 | } while (u64_stats_fetch_retry(&bstats->syncp, start)); |
| 134 | sum.tx_bytes += tmp.tx_bytes; |
| 135 | sum.tx_packets += tmp.tx_packets; |
| 136 | sum.rx_bytes += tmp.rx_bytes; |
| 137 | sum.rx_packets += tmp.rx_packets; |
stephen hemminger | 14bb478 | 2010-03-02 13:32:09 +0000 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | stats->tx_bytes = sum.tx_bytes; |
| 141 | stats->tx_packets = sum.tx_packets; |
| 142 | stats->rx_bytes = sum.rx_bytes; |
| 143 | stats->rx_packets = sum.rx_packets; |
| 144 | |
| 145 | return stats; |
| 146 | } |
| 147 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | static int br_change_mtu(struct net_device *dev, int new_mtu) |
| 149 | { |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 150 | struct net_bridge *br = netdev_priv(dev); |
| 151 | if (new_mtu < 68 || new_mtu > br_min_mtu(br)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | return -EINVAL; |
| 153 | |
| 154 | dev->mtu = new_mtu; |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 155 | |
| 156 | #ifdef CONFIG_BRIDGE_NETFILTER |
| 157 | /* remember the MTU in the rtable for PMTU */ |
David S. Miller | defb351 | 2010-12-08 21:16:57 -0800 | [diff] [blame] | 158 | dst_metric_set(&br->fake_rtable.dst, RTAX_MTU, new_mtu); |
Simon Wunderlich | 4adf0af | 2008-07-30 16:27:55 -0700 | [diff] [blame] | 159 | #endif |
| 160 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | return 0; |
| 162 | } |
| 163 | |
Stephen Hemminger | ffe1d49 | 2007-04-09 11:49:58 -0700 | [diff] [blame] | 164 | /* Allow setting mac address to any valid ethernet address. */ |
Stephen Hemminger | 4505a3e | 2005-12-21 18:51:49 -0800 | [diff] [blame] | 165 | static int br_set_mac_address(struct net_device *dev, void *p) |
| 166 | { |
| 167 | struct net_bridge *br = netdev_priv(dev); |
| 168 | struct sockaddr *addr = p; |
Stephen Hemminger | ffe1d49 | 2007-04-09 11:49:58 -0700 | [diff] [blame] | 169 | |
| 170 | if (!is_valid_ether_addr(addr->sa_data)) |
Danny Kukawka | 7ca1e11 | 2012-02-21 02:07:52 +0000 | [diff] [blame] | 171 | return -EADDRNOTAVAIL; |
Stephen Hemminger | 4505a3e | 2005-12-21 18:51:49 -0800 | [diff] [blame] | 172 | |
| 173 | spin_lock_bh(&br->lock); |
stephen hemminger | 4359881 | 2011-12-08 07:17:49 +0000 | [diff] [blame] | 174 | if (compare_ether_addr(dev->dev_addr, addr->sa_data)) { |
Danny Kukawka | 7ce5d22 | 2012-02-15 06:45:40 +0000 | [diff] [blame] | 175 | dev->addr_assign_type &= ~NET_ADDR_RANDOM; |
stephen hemminger | 4359881 | 2011-12-08 07:17:49 +0000 | [diff] [blame] | 176 | memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); |
| 177 | br_fdb_change_mac_address(br, addr->sa_data); |
| 178 | br_stp_change_bridge_id(br, addr->sa_data); |
| 179 | } |
Stephen Hemminger | 92c0574 | 2008-06-17 16:10:06 -0700 | [diff] [blame] | 180 | br->flags |= BR_SET_MAC_ADDR; |
Stephen Hemminger | 4505a3e | 2005-12-21 18:51:49 -0800 | [diff] [blame] | 181 | spin_unlock_bh(&br->lock); |
| 182 | |
Stephen Hemminger | ffe1d49 | 2007-04-09 11:49:58 -0700 | [diff] [blame] | 183 | return 0; |
Stephen Hemminger | 4505a3e | 2005-12-21 18:51:49 -0800 | [diff] [blame] | 184 | } |
| 185 | |
Stephen Hemminger | edb5e46 | 2005-12-21 19:00:58 -0800 | [diff] [blame] | 186 | static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info) |
| 187 | { |
| 188 | strcpy(info->driver, "bridge"); |
| 189 | strcpy(info->version, BR_VERSION); |
| 190 | strcpy(info->fw_version, "N/A"); |
| 191 | strcpy(info->bus_info, "N/A"); |
| 192 | } |
| 193 | |
Michał Mirosław | c8f44af | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 194 | static netdev_features_t br_fix_features(struct net_device *dev, |
| 195 | netdev_features_t features) |
Stephen Hemminger | edb5e46 | 2005-12-21 19:00:58 -0800 | [diff] [blame] | 196 | { |
| 197 | struct net_bridge *br = netdev_priv(dev); |
| 198 | |
Michał Mirosław | c4d27ef | 2011-04-22 06:31:16 +0000 | [diff] [blame] | 199 | return br_features_recompute(br, features); |
Jesse Gross | 361ff8a | 2010-10-20 13:56:08 +0000 | [diff] [blame] | 200 | } |
| 201 | |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 202 | #ifdef CONFIG_NET_POLL_CONTROLLER |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 203 | static void br_poll_controller(struct net_device *br_dev) |
| 204 | { |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 205 | } |
| 206 | |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 207 | static void br_netpoll_cleanup(struct net_device *dev) |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 208 | { |
stephen hemminger | cfb478d | 2010-05-10 09:31:08 +0000 | [diff] [blame] | 209 | struct net_bridge *br = netdev_priv(dev); |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 210 | struct net_bridge_port *p, *n; |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 211 | |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 212 | list_for_each_entry_safe(p, n, &br->port_list, list) { |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 213 | br_netpoll_disable(p); |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 214 | } |
| 215 | } |
| 216 | |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 217 | static int br_netpoll_setup(struct net_device *dev, struct netpoll_info *ni) |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 218 | { |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 219 | struct net_bridge *br = netdev_priv(dev); |
| 220 | struct net_bridge_port *p, *n; |
| 221 | int err = 0; |
| 222 | |
| 223 | list_for_each_entry_safe(p, n, &br->port_list, list) { |
| 224 | if (!p->dev) |
| 225 | continue; |
| 226 | |
| 227 | err = br_netpoll_enable(p); |
| 228 | if (err) |
| 229 | goto fail; |
| 230 | } |
| 231 | |
| 232 | out: |
| 233 | return err; |
| 234 | |
| 235 | fail: |
| 236 | br_netpoll_cleanup(dev); |
| 237 | goto out; |
stephen hemminger | cfb478d | 2010-05-10 09:31:08 +0000 | [diff] [blame] | 238 | } |
| 239 | |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 240 | int br_netpoll_enable(struct net_bridge_port *p) |
stephen hemminger | cfb478d | 2010-05-10 09:31:08 +0000 | [diff] [blame] | 241 | { |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 242 | struct netpoll *np; |
| 243 | int err = 0; |
| 244 | |
| 245 | np = kzalloc(sizeof(*p->np), GFP_KERNEL); |
| 246 | err = -ENOMEM; |
| 247 | if (!np) |
| 248 | goto out; |
| 249 | |
| 250 | np->dev = p->dev; |
WANG Cong | cefa999 | 2011-06-19 16:13:01 -0700 | [diff] [blame] | 251 | strlcpy(np->dev_name, p->dev->name, IFNAMSIZ); |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 252 | |
| 253 | err = __netpoll_setup(np); |
| 254 | if (err) { |
| 255 | kfree(np); |
| 256 | goto out; |
stephen hemminger | cfb478d | 2010-05-10 09:31:08 +0000 | [diff] [blame] | 257 | } |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 258 | |
| 259 | p->np = np; |
| 260 | |
| 261 | out: |
| 262 | return err; |
| 263 | } |
| 264 | |
| 265 | void br_netpoll_disable(struct net_bridge_port *p) |
| 266 | { |
| 267 | struct netpoll *np = p->np; |
| 268 | |
| 269 | if (!np) |
| 270 | return; |
| 271 | |
| 272 | p->np = NULL; |
| 273 | |
| 274 | /* Wait for transmitting packets to finish before freeing. */ |
| 275 | synchronize_rcu_bh(); |
| 276 | |
| 277 | __netpoll_cleanup(np); |
| 278 | kfree(np); |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 279 | } |
| 280 | |
| 281 | #endif |
| 282 | |
Jiri Pirko | afc6151 | 2011-02-13 09:33:42 +0000 | [diff] [blame] | 283 | static int br_add_slave(struct net_device *dev, struct net_device *slave_dev) |
| 284 | |
| 285 | { |
| 286 | struct net_bridge *br = netdev_priv(dev); |
| 287 | |
| 288 | return br_add_if(br, slave_dev); |
| 289 | } |
| 290 | |
| 291 | static int br_del_slave(struct net_device *dev, struct net_device *slave_dev) |
| 292 | { |
| 293 | struct net_bridge *br = netdev_priv(dev); |
| 294 | |
| 295 | return br_del_if(br, slave_dev); |
| 296 | } |
| 297 | |
Stephen Hemminger | a2dbb88 | 2008-11-19 21:49:00 -0800 | [diff] [blame] | 298 | static const struct ethtool_ops br_ethtool_ops = { |
Stephen Hemminger | e4119a4 | 2008-08-15 19:51:07 -0700 | [diff] [blame] | 299 | .get_drvinfo = br_getinfo, |
| 300 | .get_link = ethtool_op_get_link, |
Stephen Hemminger | edb5e46 | 2005-12-21 19:00:58 -0800 | [diff] [blame] | 301 | }; |
| 302 | |
Stephen Hemminger | a2dbb88 | 2008-11-19 21:49:00 -0800 | [diff] [blame] | 303 | static const struct net_device_ops br_netdev_ops = { |
| 304 | .ndo_open = br_dev_open, |
| 305 | .ndo_stop = br_dev_stop, |
stephen hemminger | bb900b2 | 2011-04-04 14:03:32 +0000 | [diff] [blame] | 306 | .ndo_init = br_dev_init, |
Stephen Hemminger | 0082982 | 2008-11-20 20:14:53 -0800 | [diff] [blame] | 307 | .ndo_start_xmit = br_dev_xmit, |
Eric Dumazet | 406818f | 2010-06-23 13:00:48 -0700 | [diff] [blame] | 308 | .ndo_get_stats64 = br_get_stats64, |
Stephen Hemminger | 0082982 | 2008-11-20 20:14:53 -0800 | [diff] [blame] | 309 | .ndo_set_mac_address = br_set_mac_address, |
Jiri Pirko | afc4b13 | 2011-08-16 06:29:01 +0000 | [diff] [blame] | 310 | .ndo_set_rx_mode = br_dev_set_multicast_list, |
Stephen Hemminger | 0082982 | 2008-11-20 20:14:53 -0800 | [diff] [blame] | 311 | .ndo_change_mtu = br_change_mtu, |
| 312 | .ndo_do_ioctl = br_dev_ioctl, |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 313 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Herbert Xu | 91d2c34 | 2010-06-10 16:12:50 +0000 | [diff] [blame] | 314 | .ndo_netpoll_setup = br_netpoll_setup, |
WANG Cong | c06ee96 | 2010-05-06 00:48:24 -0700 | [diff] [blame] | 315 | .ndo_netpoll_cleanup = br_netpoll_cleanup, |
| 316 | .ndo_poll_controller = br_poll_controller, |
| 317 | #endif |
Jiri Pirko | afc6151 | 2011-02-13 09:33:42 +0000 | [diff] [blame] | 318 | .ndo_add_slave = br_add_slave, |
| 319 | .ndo_del_slave = br_del_slave, |
Michał Mirosław | c4d27ef | 2011-04-22 06:31:16 +0000 | [diff] [blame] | 320 | .ndo_fix_features = br_fix_features, |
Stephen Hemminger | a2dbb88 | 2008-11-19 21:49:00 -0800 | [diff] [blame] | 321 | }; |
| 322 | |
stephen hemminger | 14bb478 | 2010-03-02 13:32:09 +0000 | [diff] [blame] | 323 | static void br_dev_free(struct net_device *dev) |
| 324 | { |
| 325 | struct net_bridge *br = netdev_priv(dev); |
| 326 | |
| 327 | free_percpu(br->stats); |
| 328 | free_netdev(dev); |
| 329 | } |
| 330 | |
stephen hemminger | bb900b2 | 2011-04-04 14:03:32 +0000 | [diff] [blame] | 331 | static struct device_type br_type = { |
| 332 | .name = "bridge", |
| 333 | }; |
| 334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | void br_dev_setup(struct net_device *dev) |
| 336 | { |
stephen hemminger | bb900b2 | 2011-04-04 14:03:32 +0000 | [diff] [blame] | 337 | struct net_bridge *br = netdev_priv(dev); |
| 338 | |
Danny Kukawka | 7ce5d22 | 2012-02-15 06:45:40 +0000 | [diff] [blame] | 339 | eth_hw_addr_random(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 340 | ether_setup(dev); |
| 341 | |
Stephen Hemminger | a2dbb88 | 2008-11-19 21:49:00 -0800 | [diff] [blame] | 342 | dev->netdev_ops = &br_netdev_ops; |
stephen hemminger | 14bb478 | 2010-03-02 13:32:09 +0000 | [diff] [blame] | 343 | dev->destructor = br_dev_free; |
YOSHIFUJI Hideaki | 9d6f229 | 2007-02-09 23:24:35 +0900 | [diff] [blame] | 344 | SET_ETHTOOL_OPS(dev, &br_ethtool_ops); |
stephen hemminger | bb900b2 | 2011-04-04 14:03:32 +0000 | [diff] [blame] | 345 | SET_NETDEV_DEVTYPE(dev, &br_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | dev->tx_queue_len = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 347 | dev->priv_flags = IFF_EBRIDGE; |
Stephen Hemminger | edb5e46 | 2005-12-21 19:00:58 -0800 | [diff] [blame] | 348 | |
YOSHIFUJI Hideaki | 9d6f229 | 2007-02-09 23:24:35 +0900 | [diff] [blame] | 349 | dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA | |
Michał Mirosław | 34324dc | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 350 | NETIF_F_GSO_MASK | NETIF_F_HW_CSUM | NETIF_F_LLTX | |
Michał Mirosław | c4d27ef | 2011-04-22 06:31:16 +0000 | [diff] [blame] | 351 | NETIF_F_NETNS_LOCAL | NETIF_F_HW_VLAN_TX; |
| 352 | dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA | |
Michał Mirosław | 34324dc | 2011-11-15 15:29:55 +0000 | [diff] [blame] | 353 | NETIF_F_GSO_MASK | NETIF_F_HW_CSUM | |
Michał Mirosław | c4d27ef | 2011-04-22 06:31:16 +0000 | [diff] [blame] | 354 | NETIF_F_HW_VLAN_TX; |
stephen hemminger | bb900b2 | 2011-04-04 14:03:32 +0000 | [diff] [blame] | 355 | |
| 356 | br->dev = dev; |
| 357 | spin_lock_init(&br->lock); |
| 358 | INIT_LIST_HEAD(&br->port_list); |
| 359 | spin_lock_init(&br->hash_lock); |
| 360 | |
| 361 | br->bridge_id.prio[0] = 0x80; |
| 362 | br->bridge_id.prio[1] = 0x00; |
| 363 | |
| 364 | memcpy(br->group_addr, br_group_address, ETH_ALEN); |
| 365 | |
stephen hemminger | bb900b2 | 2011-04-04 14:03:32 +0000 | [diff] [blame] | 366 | br->stp_enabled = BR_NO_STP; |
stephen hemminger | 515853c | 2011-10-03 18:14:46 +0000 | [diff] [blame] | 367 | br->group_fwd_mask = BR_GROUPFWD_DEFAULT; |
| 368 | |
stephen hemminger | bb900b2 | 2011-04-04 14:03:32 +0000 | [diff] [blame] | 369 | br->designated_root = br->bridge_id; |
| 370 | br->bridge_max_age = br->max_age = 20 * HZ; |
| 371 | br->bridge_hello_time = br->hello_time = 2 * HZ; |
| 372 | br->bridge_forward_delay = br->forward_delay = 15 * HZ; |
| 373 | br->ageing_time = 300 * HZ; |
| 374 | |
| 375 | br_netfilter_rtable_init(br); |
| 376 | br_stp_timer_init(br); |
| 377 | br_multicast_init(br); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | } |