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