Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1 | /* |
Jiri Pirko | 0d572e4 | 2012-06-19 05:54:09 +0000 | [diff] [blame] | 2 | * drivers/net/team/team.c - Network team device driver |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 3 | * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/kernel.h> |
| 12 | #include <linux/types.h> |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/slab.h> |
| 16 | #include <linux/rcupdate.h> |
| 17 | #include <linux/errno.h> |
| 18 | #include <linux/ctype.h> |
| 19 | #include <linux/notifier.h> |
| 20 | #include <linux/netdevice.h> |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 21 | #include <linux/netpoll.h> |
Jiri Pirko | 87002b0 | 2011-12-08 04:11:17 +0000 | [diff] [blame] | 22 | #include <linux/if_vlan.h> |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 23 | #include <linux/if_arp.h> |
| 24 | #include <linux/socket.h> |
| 25 | #include <linux/etherdevice.h> |
| 26 | #include <linux/rtnetlink.h> |
| 27 | #include <net/rtnetlink.h> |
| 28 | #include <net/genetlink.h> |
| 29 | #include <net/netlink.h> |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 30 | #include <net/sch_generic.h> |
Roopa Prabhu | a16a8ee7 | 2015-01-29 22:40:17 -0800 | [diff] [blame] | 31 | #include <net/switchdev.h> |
Flavio Leitner | 7f51c58 | 2012-12-29 16:37:33 +0000 | [diff] [blame] | 32 | #include <generated/utsrelease.h> |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 33 | #include <linux/if_team.h> |
| 34 | |
| 35 | #define DRV_NAME "team" |
| 36 | |
| 37 | |
| 38 | /********** |
| 39 | * Helpers |
| 40 | **********/ |
| 41 | |
| 42 | #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) |
| 43 | |
| 44 | static struct team_port *team_port_get_rcu(const struct net_device *dev) |
| 45 | { |
Jiri Pirko | 57e5956 | 2015-02-23 14:02:54 +0100 | [diff] [blame] | 46 | return rcu_dereference(dev->rx_handler_data); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 47 | } |
| 48 | |
| 49 | static struct team_port *team_port_get_rtnl(const struct net_device *dev) |
| 50 | { |
| 51 | struct team_port *port = rtnl_dereference(dev->rx_handler_data); |
| 52 | |
| 53 | return team_port_exists(dev) ? port : NULL; |
| 54 | } |
| 55 | |
| 56 | /* |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 57 | * Since the ability to change device address for open port device is tested in |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 58 | * team_port_add, this function can be called without control of return value |
| 59 | */ |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 60 | static int __set_port_dev_addr(struct net_device *port_dev, |
| 61 | const unsigned char *dev_addr) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 62 | { |
| 63 | struct sockaddr addr; |
| 64 | |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 65 | memcpy(addr.sa_data, dev_addr, port_dev->addr_len); |
| 66 | addr.sa_family = port_dev->type; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 67 | return dev_set_mac_address(port_dev, &addr); |
| 68 | } |
| 69 | |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 70 | static int team_port_set_orig_dev_addr(struct team_port *port) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 71 | { |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 72 | return __set_port_dev_addr(port->dev, port->orig.dev_addr); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 73 | } |
| 74 | |
Jiri Pirko | acbba0d | 2013-03-06 01:31:12 +0000 | [diff] [blame] | 75 | static int team_port_set_team_dev_addr(struct team *team, |
| 76 | struct team_port *port) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 77 | { |
Jiri Pirko | acbba0d | 2013-03-06 01:31:12 +0000 | [diff] [blame] | 78 | return __set_port_dev_addr(port->dev, team->dev->dev_addr); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 79 | } |
Jiri Pirko | acbba0d | 2013-03-06 01:31:12 +0000 | [diff] [blame] | 80 | |
| 81 | int team_modeop_port_enter(struct team *team, struct team_port *port) |
| 82 | { |
| 83 | return team_port_set_team_dev_addr(team, port); |
| 84 | } |
| 85 | EXPORT_SYMBOL(team_modeop_port_enter); |
| 86 | |
| 87 | void team_modeop_port_change_dev_addr(struct team *team, |
| 88 | struct team_port *port) |
| 89 | { |
| 90 | team_port_set_team_dev_addr(team, port); |
| 91 | } |
| 92 | EXPORT_SYMBOL(team_modeop_port_change_dev_addr); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 93 | |
Jiri Pirko | 3a0d6c5 | 2015-12-03 12:12:18 +0100 | [diff] [blame] | 94 | static void team_lower_state_changed(struct team_port *port) |
| 95 | { |
| 96 | struct netdev_lag_lower_state_info info; |
| 97 | |
| 98 | info.link_up = port->linkup; |
| 99 | info.tx_enabled = team_port_enabled(port); |
| 100 | netdev_lower_state_changed(port->dev, &info); |
| 101 | } |
| 102 | |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 103 | static void team_refresh_port_linkup(struct team_port *port) |
| 104 | { |
Jiri Pirko | 3a0d6c5 | 2015-12-03 12:12:18 +0100 | [diff] [blame] | 105 | bool new_linkup = port->user.linkup_enabled ? port->user.linkup : |
| 106 | port->state.linkup; |
| 107 | |
| 108 | if (port->linkup != new_linkup) { |
| 109 | port->linkup = new_linkup; |
| 110 | team_lower_state_changed(port); |
| 111 | } |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 112 | } |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 113 | |
Jiri Pirko | 0f1aad2 | 2012-06-19 05:54:11 +0000 | [diff] [blame] | 114 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 115 | /******************* |
| 116 | * Options handling |
| 117 | *******************/ |
| 118 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 119 | struct team_option_inst { /* One for each option instance */ |
| 120 | struct list_head list; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 121 | struct list_head tmp_list; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 122 | struct team_option *option; |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 123 | struct team_option_inst_info info; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 124 | bool changed; |
| 125 | bool removed; |
| 126 | }; |
| 127 | |
| 128 | static struct team_option *__team_find_option(struct team *team, |
| 129 | const char *opt_name) |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 130 | { |
| 131 | struct team_option *option; |
| 132 | |
| 133 | list_for_each_entry(option, &team->option_list, list) { |
| 134 | if (strcmp(option->name, opt_name) == 0) |
| 135 | return option; |
| 136 | } |
| 137 | return NULL; |
| 138 | } |
| 139 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 140 | static void __team_option_inst_del(struct team_option_inst *opt_inst) |
| 141 | { |
| 142 | list_del(&opt_inst->list); |
| 143 | kfree(opt_inst); |
| 144 | } |
| 145 | |
| 146 | static void __team_option_inst_del_option(struct team *team, |
| 147 | struct team_option *option) |
| 148 | { |
| 149 | struct team_option_inst *opt_inst, *tmp; |
| 150 | |
| 151 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { |
| 152 | if (opt_inst->option == option) |
| 153 | __team_option_inst_del(opt_inst); |
| 154 | } |
| 155 | } |
| 156 | |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 157 | static int __team_option_inst_add(struct team *team, struct team_option *option, |
| 158 | struct team_port *port) |
| 159 | { |
| 160 | struct team_option_inst *opt_inst; |
| 161 | unsigned int array_size; |
| 162 | unsigned int i; |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 163 | int err; |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 164 | |
| 165 | array_size = option->array_size; |
| 166 | if (!array_size) |
| 167 | array_size = 1; /* No array but still need one instance */ |
| 168 | |
| 169 | for (i = 0; i < array_size; i++) { |
| 170 | opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); |
| 171 | if (!opt_inst) |
| 172 | return -ENOMEM; |
| 173 | opt_inst->option = option; |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 174 | opt_inst->info.port = port; |
| 175 | opt_inst->info.array_index = i; |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 176 | opt_inst->changed = true; |
| 177 | opt_inst->removed = false; |
| 178 | list_add_tail(&opt_inst->list, &team->option_inst_list); |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 179 | if (option->init) { |
| 180 | err = option->init(team, &opt_inst->info); |
| 181 | if (err) |
| 182 | return err; |
| 183 | } |
| 184 | |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 185 | } |
| 186 | return 0; |
| 187 | } |
| 188 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 189 | static int __team_option_inst_add_option(struct team *team, |
| 190 | struct team_option *option) |
| 191 | { |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 192 | int err; |
| 193 | |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 194 | if (!option->per_port) { |
Jiri Pirko | f88725f | 2012-06-19 05:54:15 +0000 | [diff] [blame] | 195 | err = __team_option_inst_add(team, option, NULL); |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 196 | if (err) |
| 197 | goto inst_del_option; |
| 198 | } |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 199 | return 0; |
| 200 | |
| 201 | inst_del_option: |
| 202 | __team_option_inst_del_option(team, option); |
| 203 | return err; |
| 204 | } |
| 205 | |
| 206 | static void __team_option_inst_mark_removed_option(struct team *team, |
| 207 | struct team_option *option) |
| 208 | { |
| 209 | struct team_option_inst *opt_inst; |
| 210 | |
| 211 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
| 212 | if (opt_inst->option == option) { |
| 213 | opt_inst->changed = true; |
| 214 | opt_inst->removed = true; |
| 215 | } |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | static void __team_option_inst_del_port(struct team *team, |
| 220 | struct team_port *port) |
| 221 | { |
| 222 | struct team_option_inst *opt_inst, *tmp; |
| 223 | |
| 224 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { |
| 225 | if (opt_inst->option->per_port && |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 226 | opt_inst->info.port == port) |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 227 | __team_option_inst_del(opt_inst); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | static int __team_option_inst_add_port(struct team *team, |
| 232 | struct team_port *port) |
| 233 | { |
| 234 | struct team_option *option; |
| 235 | int err; |
| 236 | |
| 237 | list_for_each_entry(option, &team->option_list, list) { |
| 238 | if (!option->per_port) |
| 239 | continue; |
| 240 | err = __team_option_inst_add(team, option, port); |
| 241 | if (err) |
| 242 | goto inst_del_port; |
| 243 | } |
| 244 | return 0; |
| 245 | |
| 246 | inst_del_port: |
| 247 | __team_option_inst_del_port(team, port); |
| 248 | return err; |
| 249 | } |
| 250 | |
| 251 | static void __team_option_inst_mark_removed_port(struct team *team, |
| 252 | struct team_port *port) |
| 253 | { |
| 254 | struct team_option_inst *opt_inst; |
| 255 | |
| 256 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 257 | if (opt_inst->info.port == port) { |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 258 | opt_inst->changed = true; |
| 259 | opt_inst->removed = true; |
| 260 | } |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | static int __team_options_register(struct team *team, |
| 265 | const struct team_option *option, |
| 266 | size_t option_count) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 267 | { |
| 268 | int i; |
Jiri Pirko | 2bba19f | 2011-11-17 04:16:05 +0000 | [diff] [blame] | 269 | struct team_option **dst_opts; |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 270 | int err; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 271 | |
Jiri Pirko | 2bba19f | 2011-11-17 04:16:05 +0000 | [diff] [blame] | 272 | dst_opts = kzalloc(sizeof(struct team_option *) * option_count, |
| 273 | GFP_KERNEL); |
| 274 | if (!dst_opts) |
| 275 | return -ENOMEM; |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 276 | for (i = 0; i < option_count; i++, option++) { |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 277 | if (__team_find_option(team, option->name)) { |
| 278 | err = -EEXIST; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 279 | goto alloc_rollback; |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 280 | } |
Jiri Pirko | f8a15af | 2011-11-17 06:32:37 +0000 | [diff] [blame] | 281 | dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); |
| 282 | if (!dst_opts[i]) { |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 283 | err = -ENOMEM; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 284 | goto alloc_rollback; |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 285 | } |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 286 | } |
| 287 | |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 288 | for (i = 0; i < option_count; i++) { |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 289 | err = __team_option_inst_add_option(team, dst_opts[i]); |
| 290 | if (err) |
| 291 | goto inst_rollback; |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 292 | list_add_tail(&dst_opts[i]->list, &team->option_list); |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 293 | } |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 294 | |
Jiri Pirko | 2bba19f | 2011-11-17 04:16:05 +0000 | [diff] [blame] | 295 | kfree(dst_opts); |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 296 | return 0; |
| 297 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 298 | inst_rollback: |
| 299 | for (i--; i >= 0; i--) |
| 300 | __team_option_inst_del_option(team, dst_opts[i]); |
| 301 | |
| 302 | i = option_count - 1; |
| 303 | alloc_rollback: |
| 304 | for (i--; i >= 0; i--) |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 305 | kfree(dst_opts[i]); |
| 306 | |
Jiri Pirko | 2bba19f | 2011-11-17 04:16:05 +0000 | [diff] [blame] | 307 | kfree(dst_opts); |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 308 | return err; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 309 | } |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 310 | |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 311 | static void __team_options_mark_removed(struct team *team, |
| 312 | const struct team_option *option, |
| 313 | size_t option_count) |
| 314 | { |
| 315 | int i; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 316 | |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 317 | for (i = 0; i < option_count; i++, option++) { |
| 318 | struct team_option *del_opt; |
| 319 | |
| 320 | del_opt = __team_find_option(team, option->name); |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 321 | if (del_opt) |
| 322 | __team_option_inst_mark_removed_option(team, del_opt); |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 323 | } |
| 324 | } |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 325 | |
| 326 | static void __team_options_unregister(struct team *team, |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 327 | const struct team_option *option, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 328 | size_t option_count) |
| 329 | { |
| 330 | int i; |
| 331 | |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 332 | for (i = 0; i < option_count; i++, option++) { |
| 333 | struct team_option *del_opt; |
| 334 | |
| 335 | del_opt = __team_find_option(team, option->name); |
| 336 | if (del_opt) { |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 337 | __team_option_inst_del_option(team, del_opt); |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 338 | list_del(&del_opt->list); |
| 339 | kfree(del_opt); |
| 340 | } |
| 341 | } |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 342 | } |
| 343 | |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 344 | static void __team_options_change_check(struct team *team); |
| 345 | |
| 346 | int team_options_register(struct team *team, |
| 347 | const struct team_option *option, |
| 348 | size_t option_count) |
| 349 | { |
| 350 | int err; |
| 351 | |
| 352 | err = __team_options_register(team, option, option_count); |
| 353 | if (err) |
| 354 | return err; |
| 355 | __team_options_change_check(team); |
| 356 | return 0; |
| 357 | } |
| 358 | EXPORT_SYMBOL(team_options_register); |
| 359 | |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 360 | void team_options_unregister(struct team *team, |
| 361 | const struct team_option *option, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 362 | size_t option_count) |
| 363 | { |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 364 | __team_options_mark_removed(team, option, option_count); |
| 365 | __team_options_change_check(team); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 366 | __team_options_unregister(team, option, option_count); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 367 | } |
| 368 | EXPORT_SYMBOL(team_options_unregister); |
| 369 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 370 | static int team_option_get(struct team *team, |
| 371 | struct team_option_inst *opt_inst, |
| 372 | struct team_gsetter_ctx *ctx) |
| 373 | { |
Jiri Pirko | f82b959 | 2012-06-19 05:54:07 +0000 | [diff] [blame] | 374 | if (!opt_inst->option->getter) |
| 375 | return -EOPNOTSUPP; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 376 | return opt_inst->option->getter(team, ctx); |
| 377 | } |
| 378 | |
| 379 | static int team_option_set(struct team *team, |
| 380 | struct team_option_inst *opt_inst, |
| 381 | struct team_gsetter_ctx *ctx) |
| 382 | { |
Jiri Pirko | f82b959 | 2012-06-19 05:54:07 +0000 | [diff] [blame] | 383 | if (!opt_inst->option->setter) |
| 384 | return -EOPNOTSUPP; |
Jiri Pirko | 2fcdb2c | 2012-06-19 05:54:20 +0000 | [diff] [blame] | 385 | return opt_inst->option->setter(team, ctx); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 386 | } |
| 387 | |
Jiri Pirko | 0f1aad2 | 2012-06-19 05:54:11 +0000 | [diff] [blame] | 388 | void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) |
| 389 | { |
| 390 | struct team_option_inst *opt_inst; |
| 391 | |
| 392 | opt_inst = container_of(opt_inst_info, struct team_option_inst, info); |
| 393 | opt_inst->changed = true; |
| 394 | } |
| 395 | EXPORT_SYMBOL(team_option_inst_set_change); |
| 396 | |
| 397 | void team_options_change_check(struct team *team) |
| 398 | { |
| 399 | __team_options_change_check(team); |
| 400 | } |
| 401 | EXPORT_SYMBOL(team_options_change_check); |
| 402 | |
| 403 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 404 | /**************** |
| 405 | * Mode handling |
| 406 | ****************/ |
| 407 | |
| 408 | static LIST_HEAD(mode_list); |
| 409 | static DEFINE_SPINLOCK(mode_list_lock); |
| 410 | |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 411 | struct team_mode_item { |
| 412 | struct list_head list; |
| 413 | const struct team_mode *mode; |
| 414 | }; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 415 | |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 416 | static struct team_mode_item *__find_mode(const char *kind) |
| 417 | { |
| 418 | struct team_mode_item *mitem; |
| 419 | |
| 420 | list_for_each_entry(mitem, &mode_list, list) { |
| 421 | if (strcmp(mitem->mode->kind, kind) == 0) |
| 422 | return mitem; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 423 | } |
| 424 | return NULL; |
| 425 | } |
| 426 | |
| 427 | static bool is_good_mode_name(const char *name) |
| 428 | { |
| 429 | while (*name != '\0') { |
| 430 | if (!isalpha(*name) && !isdigit(*name) && *name != '_') |
| 431 | return false; |
| 432 | name++; |
| 433 | } |
| 434 | return true; |
| 435 | } |
| 436 | |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 437 | int team_mode_register(const struct team_mode *mode) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 438 | { |
| 439 | int err = 0; |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 440 | struct team_mode_item *mitem; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 441 | |
| 442 | if (!is_good_mode_name(mode->kind) || |
| 443 | mode->priv_size > TEAM_MODE_PRIV_SIZE) |
| 444 | return -EINVAL; |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 445 | |
| 446 | mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); |
| 447 | if (!mitem) |
| 448 | return -ENOMEM; |
| 449 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 450 | spin_lock(&mode_list_lock); |
| 451 | if (__find_mode(mode->kind)) { |
| 452 | err = -EEXIST; |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 453 | kfree(mitem); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 454 | goto unlock; |
| 455 | } |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 456 | mitem->mode = mode; |
| 457 | list_add_tail(&mitem->list, &mode_list); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 458 | unlock: |
| 459 | spin_unlock(&mode_list_lock); |
| 460 | return err; |
| 461 | } |
| 462 | EXPORT_SYMBOL(team_mode_register); |
| 463 | |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 464 | void team_mode_unregister(const struct team_mode *mode) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 465 | { |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 466 | struct team_mode_item *mitem; |
| 467 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 468 | spin_lock(&mode_list_lock); |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 469 | mitem = __find_mode(mode->kind); |
| 470 | if (mitem) { |
| 471 | list_del_init(&mitem->list); |
| 472 | kfree(mitem); |
| 473 | } |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 474 | spin_unlock(&mode_list_lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 475 | } |
| 476 | EXPORT_SYMBOL(team_mode_unregister); |
| 477 | |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 478 | static const struct team_mode *team_mode_get(const char *kind) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 479 | { |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 480 | struct team_mode_item *mitem; |
| 481 | const struct team_mode *mode = NULL; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 482 | |
| 483 | spin_lock(&mode_list_lock); |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 484 | mitem = __find_mode(kind); |
| 485 | if (!mitem) { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 486 | spin_unlock(&mode_list_lock); |
| 487 | request_module("team-mode-%s", kind); |
| 488 | spin_lock(&mode_list_lock); |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 489 | mitem = __find_mode(kind); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 490 | } |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 491 | if (mitem) { |
| 492 | mode = mitem->mode; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 493 | if (!try_module_get(mode->owner)) |
| 494 | mode = NULL; |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 495 | } |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 496 | |
| 497 | spin_unlock(&mode_list_lock); |
| 498 | return mode; |
| 499 | } |
| 500 | |
| 501 | static void team_mode_put(const struct team_mode *mode) |
| 502 | { |
| 503 | module_put(mode->owner); |
| 504 | } |
| 505 | |
| 506 | static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) |
| 507 | { |
| 508 | dev_kfree_skb_any(skb); |
| 509 | return false; |
| 510 | } |
| 511 | |
stephen hemminger | 2ea4659 | 2013-03-08 09:07:43 +0000 | [diff] [blame] | 512 | static rx_handler_result_t team_dummy_receive(struct team *team, |
| 513 | struct team_port *port, |
| 514 | struct sk_buff *skb) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 515 | { |
| 516 | return RX_HANDLER_ANOTHER; |
| 517 | } |
| 518 | |
Jiri Pirko | d299cd5 | 2012-06-19 05:54:04 +0000 | [diff] [blame] | 519 | static const struct team_mode __team_no_mode = { |
| 520 | .kind = "*NOMODE*", |
| 521 | }; |
| 522 | |
| 523 | static bool team_is_mode_set(struct team *team) |
| 524 | { |
| 525 | return team->mode != &__team_no_mode; |
| 526 | } |
| 527 | |
| 528 | static void team_set_no_mode(struct team *team) |
| 529 | { |
Flavio Leitner | e185483 | 2013-02-05 09:30:55 +0000 | [diff] [blame] | 530 | team->user_carrier_enabled = false; |
Jiri Pirko | d299cd5 | 2012-06-19 05:54:04 +0000 | [diff] [blame] | 531 | team->mode = &__team_no_mode; |
| 532 | } |
| 533 | |
Jiri Pirko | 735d381 | 2013-06-10 17:42:25 +0200 | [diff] [blame] | 534 | static void team_adjust_ops(struct team *team) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 535 | { |
| 536 | /* |
| 537 | * To avoid checks in rx/tx skb paths, ensure here that non-null and |
| 538 | * correct ops are always set. |
| 539 | */ |
| 540 | |
Jiri Pirko | 735d381 | 2013-06-10 17:42:25 +0200 | [diff] [blame] | 541 | if (!team->en_port_count || !team_is_mode_set(team) || |
Jiri Pirko | 122bb04 | 2012-06-26 06:52:45 +0000 | [diff] [blame] | 542 | !team->mode->ops->transmit) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 543 | team->ops.transmit = team_dummy_transmit; |
| 544 | else |
| 545 | team->ops.transmit = team->mode->ops->transmit; |
| 546 | |
Jiri Pirko | 735d381 | 2013-06-10 17:42:25 +0200 | [diff] [blame] | 547 | if (!team->en_port_count || !team_is_mode_set(team) || |
Jiri Pirko | 122bb04 | 2012-06-26 06:52:45 +0000 | [diff] [blame] | 548 | !team->mode->ops->receive) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 549 | team->ops.receive = team_dummy_receive; |
| 550 | else |
| 551 | team->ops.receive = team->mode->ops->receive; |
| 552 | } |
| 553 | |
| 554 | /* |
| 555 | * We can benefit from the fact that it's ensured no port is present |
| 556 | * at the time of mode change. Therefore no packets are in fly so there's no |
| 557 | * need to set mode operations in any special way. |
| 558 | */ |
| 559 | static int __team_change_mode(struct team *team, |
| 560 | const struct team_mode *new_mode) |
| 561 | { |
| 562 | /* Check if mode was previously set and do cleanup if so */ |
Jiri Pirko | d299cd5 | 2012-06-19 05:54:04 +0000 | [diff] [blame] | 563 | if (team_is_mode_set(team)) { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 564 | void (*exit_op)(struct team *team) = team->ops.exit; |
| 565 | |
| 566 | /* Clear ops area so no callback is called any longer */ |
| 567 | memset(&team->ops, 0, sizeof(struct team_mode_ops)); |
| 568 | team_adjust_ops(team); |
| 569 | |
| 570 | if (exit_op) |
| 571 | exit_op(team); |
| 572 | team_mode_put(team->mode); |
Jiri Pirko | d299cd5 | 2012-06-19 05:54:04 +0000 | [diff] [blame] | 573 | team_set_no_mode(team); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 574 | /* zero private data area */ |
| 575 | memset(&team->mode_priv, 0, |
| 576 | sizeof(struct team) - offsetof(struct team, mode_priv)); |
| 577 | } |
| 578 | |
| 579 | if (!new_mode) |
| 580 | return 0; |
| 581 | |
| 582 | if (new_mode->ops->init) { |
| 583 | int err; |
| 584 | |
| 585 | err = new_mode->ops->init(team); |
| 586 | if (err) |
| 587 | return err; |
| 588 | } |
| 589 | |
| 590 | team->mode = new_mode; |
| 591 | memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); |
| 592 | team_adjust_ops(team); |
| 593 | |
| 594 | return 0; |
| 595 | } |
| 596 | |
| 597 | static int team_change_mode(struct team *team, const char *kind) |
| 598 | { |
Jiri Pirko | 0402788 | 2012-06-19 05:54:03 +0000 | [diff] [blame] | 599 | const struct team_mode *new_mode; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 600 | struct net_device *dev = team->dev; |
| 601 | int err; |
| 602 | |
| 603 | if (!list_empty(&team->port_list)) { |
| 604 | netdev_err(dev, "No ports can be present during mode change\n"); |
| 605 | return -EBUSY; |
| 606 | } |
| 607 | |
Jiri Pirko | d299cd5 | 2012-06-19 05:54:04 +0000 | [diff] [blame] | 608 | if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 609 | netdev_err(dev, "Unable to change to the same mode the team is in\n"); |
| 610 | return -EINVAL; |
| 611 | } |
| 612 | |
| 613 | new_mode = team_mode_get(kind); |
| 614 | if (!new_mode) { |
| 615 | netdev_err(dev, "Mode \"%s\" not found\n", kind); |
| 616 | return -EINVAL; |
| 617 | } |
| 618 | |
| 619 | err = __team_change_mode(team, new_mode); |
| 620 | if (err) { |
| 621 | netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); |
| 622 | team_mode_put(new_mode); |
| 623 | return err; |
| 624 | } |
| 625 | |
| 626 | netdev_info(dev, "Mode changed to \"%s\"\n", kind); |
| 627 | return 0; |
| 628 | } |
| 629 | |
| 630 | |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 631 | /********************* |
| 632 | * Peers notification |
| 633 | *********************/ |
| 634 | |
| 635 | static void team_notify_peers_work(struct work_struct *work) |
| 636 | { |
| 637 | struct team *team; |
Jiri Pirko | b0d11b4 | 2015-01-14 18:15:30 +0100 | [diff] [blame] | 638 | int val; |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 639 | |
| 640 | team = container_of(work, struct team, notify_peers.dw.work); |
| 641 | |
| 642 | if (!rtnl_trylock()) { |
| 643 | schedule_delayed_work(&team->notify_peers.dw, 0); |
| 644 | return; |
| 645 | } |
Jiri Pirko | b0d11b4 | 2015-01-14 18:15:30 +0100 | [diff] [blame] | 646 | val = atomic_dec_if_positive(&team->notify_peers.count_pending); |
| 647 | if (val < 0) { |
| 648 | rtnl_unlock(); |
| 649 | return; |
| 650 | } |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 651 | call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev); |
| 652 | rtnl_unlock(); |
Jiri Pirko | b0d11b4 | 2015-01-14 18:15:30 +0100 | [diff] [blame] | 653 | if (val) |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 654 | schedule_delayed_work(&team->notify_peers.dw, |
| 655 | msecs_to_jiffies(team->notify_peers.interval)); |
| 656 | } |
| 657 | |
| 658 | static void team_notify_peers(struct team *team) |
| 659 | { |
| 660 | if (!team->notify_peers.count || !netif_running(team->dev)) |
| 661 | return; |
Joe Lawrence | 4754965 | 2014-10-03 09:58:34 -0400 | [diff] [blame] | 662 | atomic_add(team->notify_peers.count, &team->notify_peers.count_pending); |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 663 | schedule_delayed_work(&team->notify_peers.dw, 0); |
| 664 | } |
| 665 | |
| 666 | static void team_notify_peers_init(struct team *team) |
| 667 | { |
| 668 | INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work); |
| 669 | } |
| 670 | |
| 671 | static void team_notify_peers_fini(struct team *team) |
| 672 | { |
| 673 | cancel_delayed_work_sync(&team->notify_peers.dw); |
| 674 | } |
| 675 | |
| 676 | |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 677 | /******************************* |
| 678 | * Send multicast group rejoins |
| 679 | *******************************/ |
| 680 | |
| 681 | static void team_mcast_rejoin_work(struct work_struct *work) |
| 682 | { |
| 683 | struct team *team; |
Jiri Pirko | b0d11b4 | 2015-01-14 18:15:30 +0100 | [diff] [blame] | 684 | int val; |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 685 | |
| 686 | team = container_of(work, struct team, mcast_rejoin.dw.work); |
| 687 | |
| 688 | if (!rtnl_trylock()) { |
| 689 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); |
| 690 | return; |
| 691 | } |
Jiri Pirko | b0d11b4 | 2015-01-14 18:15:30 +0100 | [diff] [blame] | 692 | val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending); |
| 693 | if (val < 0) { |
| 694 | rtnl_unlock(); |
| 695 | return; |
| 696 | } |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 697 | call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev); |
| 698 | rtnl_unlock(); |
Jiri Pirko | b0d11b4 | 2015-01-14 18:15:30 +0100 | [diff] [blame] | 699 | if (val) |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 700 | schedule_delayed_work(&team->mcast_rejoin.dw, |
| 701 | msecs_to_jiffies(team->mcast_rejoin.interval)); |
| 702 | } |
| 703 | |
| 704 | static void team_mcast_rejoin(struct team *team) |
| 705 | { |
| 706 | if (!team->mcast_rejoin.count || !netif_running(team->dev)) |
| 707 | return; |
Joe Lawrence | 4754965 | 2014-10-03 09:58:34 -0400 | [diff] [blame] | 708 | atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending); |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 709 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); |
| 710 | } |
| 711 | |
| 712 | static void team_mcast_rejoin_init(struct team *team) |
| 713 | { |
| 714 | INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work); |
| 715 | } |
| 716 | |
| 717 | static void team_mcast_rejoin_fini(struct team *team) |
| 718 | { |
| 719 | cancel_delayed_work_sync(&team->mcast_rejoin.dw); |
| 720 | } |
| 721 | |
| 722 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 723 | /************************ |
| 724 | * Rx path frame handler |
| 725 | ************************/ |
| 726 | |
| 727 | /* note: already called with rcu_read_lock */ |
| 728 | static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) |
| 729 | { |
| 730 | struct sk_buff *skb = *pskb; |
| 731 | struct team_port *port; |
| 732 | struct team *team; |
| 733 | rx_handler_result_t res; |
| 734 | |
| 735 | skb = skb_share_check(skb, GFP_ATOMIC); |
| 736 | if (!skb) |
| 737 | return RX_HANDLER_CONSUMED; |
| 738 | |
| 739 | *pskb = skb; |
| 740 | |
| 741 | port = team_port_get_rcu(skb->dev); |
| 742 | team = port->team; |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 743 | if (!team_port_enabled(port)) { |
| 744 | /* allow exact match delivery for disabled ports */ |
| 745 | res = RX_HANDLER_EXACT; |
| 746 | } else { |
| 747 | res = team->ops.receive(team, port, skb); |
| 748 | } |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 749 | if (res == RX_HANDLER_ANOTHER) { |
| 750 | struct team_pcpu_stats *pcpu_stats; |
| 751 | |
| 752 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); |
| 753 | u64_stats_update_begin(&pcpu_stats->syncp); |
| 754 | pcpu_stats->rx_packets++; |
| 755 | pcpu_stats->rx_bytes += skb->len; |
| 756 | if (skb->pkt_type == PACKET_MULTICAST) |
| 757 | pcpu_stats->rx_multicast++; |
| 758 | u64_stats_update_end(&pcpu_stats->syncp); |
| 759 | |
| 760 | skb->dev = team->dev; |
Jarod Wilson | bb63daf | 2016-02-01 18:51:06 -0500 | [diff] [blame] | 761 | } else if (res == RX_HANDLER_EXACT) { |
| 762 | this_cpu_inc(team->pcpu_stats->rx_nohandler); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 763 | } else { |
| 764 | this_cpu_inc(team->pcpu_stats->rx_dropped); |
| 765 | } |
| 766 | |
| 767 | return res; |
| 768 | } |
| 769 | |
| 770 | |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 771 | /************************************* |
| 772 | * Multiqueue Tx port select override |
| 773 | *************************************/ |
| 774 | |
| 775 | static int team_queue_override_init(struct team *team) |
| 776 | { |
| 777 | struct list_head *listarr; |
| 778 | unsigned int queue_cnt = team->dev->num_tx_queues - 1; |
| 779 | unsigned int i; |
| 780 | |
| 781 | if (!queue_cnt) |
| 782 | return 0; |
| 783 | listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); |
| 784 | if (!listarr) |
| 785 | return -ENOMEM; |
| 786 | team->qom_lists = listarr; |
| 787 | for (i = 0; i < queue_cnt; i++) |
| 788 | INIT_LIST_HEAD(listarr++); |
| 789 | return 0; |
| 790 | } |
| 791 | |
| 792 | static void team_queue_override_fini(struct team *team) |
| 793 | { |
| 794 | kfree(team->qom_lists); |
| 795 | } |
| 796 | |
| 797 | static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) |
| 798 | { |
| 799 | return &team->qom_lists[queue_id - 1]; |
| 800 | } |
| 801 | |
| 802 | /* |
| 803 | * note: already called with rcu_read_lock |
| 804 | */ |
| 805 | static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) |
| 806 | { |
| 807 | struct list_head *qom_list; |
| 808 | struct team_port *port; |
| 809 | |
| 810 | if (!team->queue_override_enabled || !skb->queue_mapping) |
| 811 | return false; |
| 812 | qom_list = __team_get_qom_list(team, skb->queue_mapping); |
| 813 | list_for_each_entry_rcu(port, qom_list, qom_list) { |
| 814 | if (!team_dev_queue_xmit(team, port, skb)) |
| 815 | return true; |
| 816 | } |
| 817 | return false; |
| 818 | } |
| 819 | |
| 820 | static void __team_queue_override_port_del(struct team *team, |
| 821 | struct team_port *port) |
| 822 | { |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 823 | if (!port->queue_id) |
| 824 | return; |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 825 | list_del_rcu(&port->qom_list); |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 826 | } |
| 827 | |
| 828 | static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, |
| 829 | struct team_port *cur) |
| 830 | { |
| 831 | if (port->priority < cur->priority) |
| 832 | return true; |
| 833 | if (port->priority > cur->priority) |
| 834 | return false; |
| 835 | if (port->index < cur->index) |
| 836 | return true; |
| 837 | return false; |
| 838 | } |
| 839 | |
| 840 | static void __team_queue_override_port_add(struct team *team, |
| 841 | struct team_port *port) |
| 842 | { |
| 843 | struct team_port *cur; |
| 844 | struct list_head *qom_list; |
| 845 | struct list_head *node; |
| 846 | |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 847 | if (!port->queue_id) |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 848 | return; |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 849 | qom_list = __team_get_qom_list(team, port->queue_id); |
| 850 | node = qom_list; |
| 851 | list_for_each_entry(cur, qom_list, qom_list) { |
| 852 | if (team_queue_override_port_has_gt_prio_than(port, cur)) |
| 853 | break; |
| 854 | node = &cur->qom_list; |
| 855 | } |
| 856 | list_add_tail_rcu(&port->qom_list, node); |
| 857 | } |
| 858 | |
| 859 | static void __team_queue_override_enabled_check(struct team *team) |
| 860 | { |
| 861 | struct team_port *port; |
| 862 | bool enabled = false; |
| 863 | |
| 864 | list_for_each_entry(port, &team->port_list, list) { |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 865 | if (port->queue_id) { |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 866 | enabled = true; |
| 867 | break; |
| 868 | } |
| 869 | } |
| 870 | if (enabled == team->queue_override_enabled) |
| 871 | return; |
| 872 | netdev_dbg(team->dev, "%s queue override\n", |
| 873 | enabled ? "Enabling" : "Disabling"); |
| 874 | team->queue_override_enabled = enabled; |
| 875 | } |
| 876 | |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 877 | static void team_queue_override_port_prio_changed(struct team *team, |
| 878 | struct team_port *port) |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 879 | { |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 880 | if (!port->queue_id || team_port_enabled(port)) |
| 881 | return; |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 882 | __team_queue_override_port_del(team, port); |
| 883 | __team_queue_override_port_add(team, port); |
| 884 | __team_queue_override_enabled_check(team); |
| 885 | } |
| 886 | |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 887 | static void team_queue_override_port_change_queue_id(struct team *team, |
| 888 | struct team_port *port, |
| 889 | u16 new_queue_id) |
| 890 | { |
| 891 | if (team_port_enabled(port)) { |
| 892 | __team_queue_override_port_del(team, port); |
| 893 | port->queue_id = new_queue_id; |
| 894 | __team_queue_override_port_add(team, port); |
| 895 | __team_queue_override_enabled_check(team); |
| 896 | } else { |
| 897 | port->queue_id = new_queue_id; |
| 898 | } |
| 899 | } |
| 900 | |
| 901 | static void team_queue_override_port_add(struct team *team, |
| 902 | struct team_port *port) |
| 903 | { |
| 904 | __team_queue_override_port_add(team, port); |
| 905 | __team_queue_override_enabled_check(team); |
| 906 | } |
| 907 | |
| 908 | static void team_queue_override_port_del(struct team *team, |
| 909 | struct team_port *port) |
| 910 | { |
| 911 | __team_queue_override_port_del(team, port); |
| 912 | __team_queue_override_enabled_check(team); |
| 913 | } |
| 914 | |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 915 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 916 | /**************** |
| 917 | * Port handling |
| 918 | ****************/ |
| 919 | |
| 920 | static bool team_port_find(const struct team *team, |
| 921 | const struct team_port *port) |
| 922 | { |
| 923 | struct team_port *cur; |
| 924 | |
| 925 | list_for_each_entry(cur, &team->port_list, list) |
| 926 | if (cur == port) |
| 927 | return true; |
| 928 | return false; |
| 929 | } |
| 930 | |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 931 | /* |
| 932 | * Enable/disable port by adding to enabled port hashlist and setting |
| 933 | * port->index (Might be racy so reader could see incorrect ifindex when |
| 934 | * processing a flying packet, but that is not a problem). Write guarded |
| 935 | * by team->lock. |
| 936 | */ |
| 937 | static void team_port_enable(struct team *team, |
| 938 | struct team_port *port) |
| 939 | { |
| 940 | if (team_port_enabled(port)) |
| 941 | return; |
| 942 | port->index = team->en_port_count++; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 943 | hlist_add_head_rcu(&port->hlist, |
| 944 | team_port_index_hash(team, port->index)); |
Jiri Pirko | 122bb04 | 2012-06-26 06:52:45 +0000 | [diff] [blame] | 945 | team_adjust_ops(team); |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 946 | team_queue_override_port_add(team, port); |
Jiri Pirko | 4bccfd1 | 2012-06-19 05:54:16 +0000 | [diff] [blame] | 947 | if (team->ops.port_enabled) |
| 948 | team->ops.port_enabled(team, port); |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 949 | team_notify_peers(team); |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 950 | team_mcast_rejoin(team); |
Jiri Pirko | 3a0d6c5 | 2015-12-03 12:12:18 +0100 | [diff] [blame] | 951 | team_lower_state_changed(port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 952 | } |
| 953 | |
| 954 | static void __reconstruct_port_hlist(struct team *team, int rm_index) |
| 955 | { |
| 956 | int i; |
| 957 | struct team_port *port; |
| 958 | |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 959 | for (i = rm_index + 1; i < team->en_port_count; i++) { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 960 | port = team_get_port_by_index(team, i); |
| 961 | hlist_del_rcu(&port->hlist); |
| 962 | port->index--; |
| 963 | hlist_add_head_rcu(&port->hlist, |
| 964 | team_port_index_hash(team, port->index)); |
| 965 | } |
| 966 | } |
| 967 | |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 968 | static void team_port_disable(struct team *team, |
| 969 | struct team_port *port) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 970 | { |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 971 | if (!team_port_enabled(port)) |
| 972 | return; |
Jiri Pirko | 4bccfd1 | 2012-06-19 05:54:16 +0000 | [diff] [blame] | 973 | if (team->ops.port_disabled) |
| 974 | team->ops.port_disabled(team, port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 975 | hlist_del_rcu(&port->hlist); |
Jiri Pirko | 122bb04 | 2012-06-26 06:52:45 +0000 | [diff] [blame] | 976 | __reconstruct_port_hlist(team, port->index); |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 977 | port->index = -1; |
Jiri Pirko | 122bb04 | 2012-06-26 06:52:45 +0000 | [diff] [blame] | 978 | team->en_port_count--; |
Jiri Pirko | 735d381 | 2013-06-10 17:42:25 +0200 | [diff] [blame] | 979 | team_queue_override_port_del(team, port); |
| 980 | team_adjust_ops(team); |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 981 | team_notify_peers(team); |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 982 | team_mcast_rejoin(team); |
Jiri Pirko | 3a0d6c5 | 2015-12-03 12:12:18 +0100 | [diff] [blame] | 983 | team_lower_state_changed(port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 984 | } |
| 985 | |
Tom Herbert | a188222 | 2015-12-14 11:19:43 -0800 | [diff] [blame] | 986 | #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 987 | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ |
| 988 | NETIF_F_HIGHDMA | NETIF_F_LRO) |
| 989 | |
Eran Ben Elisha | 3268e5c | 2015-12-17 16:11:55 +0200 | [diff] [blame] | 990 | #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ |
| 991 | NETIF_F_RXCSUM | NETIF_F_ALL_TSO) |
| 992 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 993 | static void __team_compute_features(struct team *team) |
| 994 | { |
| 995 | struct team_port *port; |
Michal Kubeček | 3625920 | 2014-05-20 08:29:45 +0200 | [diff] [blame] | 996 | u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL; |
Eran Ben Elisha | 3268e5c | 2015-12-17 16:11:55 +0200 | [diff] [blame] | 997 | netdev_features_t enc_features = TEAM_ENC_FEATURES; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 998 | unsigned short max_hard_header_len = ETH_HLEN; |
Eric Dumazet | 0287587 | 2014-10-05 18:38:35 -0700 | [diff] [blame] | 999 | unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE | |
| 1000 | IFF_XMIT_DST_RELEASE_PERM; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1001 | |
| 1002 | list_for_each_entry(port, &team->port_list, list) { |
| 1003 | vlan_features = netdev_increment_features(vlan_features, |
| 1004 | port->dev->vlan_features, |
| 1005 | TEAM_VLAN_FEATURES); |
Eran Ben Elisha | 3268e5c | 2015-12-17 16:11:55 +0200 | [diff] [blame] | 1006 | enc_features = |
| 1007 | netdev_increment_features(enc_features, |
| 1008 | port->dev->hw_enc_features, |
| 1009 | TEAM_ENC_FEATURES); |
| 1010 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1011 | |
Jiri Pirko | dc90595 | 2012-07-18 07:39:38 +0000 | [diff] [blame] | 1012 | dst_release_flag &= port->dev->priv_flags; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1013 | if (port->dev->hard_header_len > max_hard_header_len) |
| 1014 | max_hard_header_len = port->dev->hard_header_len; |
| 1015 | } |
| 1016 | |
| 1017 | team->dev->vlan_features = vlan_features; |
Eran Ben Elisha | 3268e5c | 2015-12-17 16:11:55 +0200 | [diff] [blame] | 1018 | team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1019 | team->dev->hard_header_len = max_hard_header_len; |
| 1020 | |
Eric Dumazet | 0287587 | 2014-10-05 18:38:35 -0700 | [diff] [blame] | 1021 | team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; |
| 1022 | if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM)) |
| 1023 | team->dev->priv_flags |= IFF_XMIT_DST_RELEASE; |
Jiri Pirko | dc90595 | 2012-07-18 07:39:38 +0000 | [diff] [blame] | 1024 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1025 | netdev_change_features(team->dev); |
| 1026 | } |
| 1027 | |
| 1028 | static void team_compute_features(struct team *team) |
| 1029 | { |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1030 | mutex_lock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1031 | __team_compute_features(team); |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1032 | mutex_unlock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1033 | } |
| 1034 | |
| 1035 | static int team_port_enter(struct team *team, struct team_port *port) |
| 1036 | { |
| 1037 | int err = 0; |
| 1038 | |
| 1039 | dev_hold(team->dev); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1040 | if (team->ops.port_enter) { |
| 1041 | err = team->ops.port_enter(team, port); |
| 1042 | if (err) { |
| 1043 | netdev_err(team->dev, "Device %s failed to enter team mode\n", |
| 1044 | port->dev->name); |
| 1045 | goto err_port_enter; |
| 1046 | } |
| 1047 | } |
| 1048 | |
| 1049 | return 0; |
| 1050 | |
| 1051 | err_port_enter: |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1052 | dev_put(team->dev); |
| 1053 | |
| 1054 | return err; |
| 1055 | } |
| 1056 | |
| 1057 | static void team_port_leave(struct team *team, struct team_port *port) |
| 1058 | { |
| 1059 | if (team->ops.port_leave) |
| 1060 | team->ops.port_leave(team, port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1061 | dev_put(team->dev); |
| 1062 | } |
| 1063 | |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1064 | #ifdef CONFIG_NET_POLL_CONTROLLER |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 1065 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1066 | { |
| 1067 | struct netpoll *np; |
| 1068 | int err; |
| 1069 | |
stephen hemminger | 0fb52a2 | 2013-07-24 11:52:44 -0700 | [diff] [blame] | 1070 | if (!team->dev->npinfo) |
| 1071 | return 0; |
| 1072 | |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 1073 | np = kzalloc(sizeof(*np), GFP_KERNEL); |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1074 | if (!np) |
| 1075 | return -ENOMEM; |
| 1076 | |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 1077 | err = __netpoll_setup(np, port->dev); |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1078 | if (err) { |
| 1079 | kfree(np); |
| 1080 | return err; |
| 1081 | } |
| 1082 | port->np = np; |
| 1083 | return err; |
| 1084 | } |
| 1085 | |
| 1086 | static void team_port_disable_netpoll(struct team_port *port) |
| 1087 | { |
| 1088 | struct netpoll *np = port->np; |
| 1089 | |
| 1090 | if (!np) |
| 1091 | return; |
| 1092 | port->np = NULL; |
| 1093 | |
| 1094 | /* Wait for transmitting packets to finish before freeing. */ |
| 1095 | synchronize_rcu_bh(); |
| 1096 | __netpoll_cleanup(np); |
| 1097 | kfree(np); |
| 1098 | } |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1099 | #else |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 1100 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1101 | { |
| 1102 | return 0; |
| 1103 | } |
| 1104 | static void team_port_disable_netpoll(struct team_port *port) |
| 1105 | { |
| 1106 | } |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1107 | #endif |
| 1108 | |
Jiri Pirko | 8fd7285 | 2015-12-03 12:12:13 +0100 | [diff] [blame] | 1109 | static int team_upper_dev_link(struct team *team, struct team_port *port) |
Jiri Pirko | d7d3c05 | 2014-08-25 21:38:27 +0200 | [diff] [blame] | 1110 | { |
Jiri Pirko | 8fd7285 | 2015-12-03 12:12:13 +0100 | [diff] [blame] | 1111 | struct netdev_lag_upper_info lag_upper_info; |
Jiri Pirko | d7d3c05 | 2014-08-25 21:38:27 +0200 | [diff] [blame] | 1112 | int err; |
| 1113 | |
Jiri Pirko | 8fd7285 | 2015-12-03 12:12:13 +0100 | [diff] [blame] | 1114 | lag_upper_info.tx_type = team->mode->lag_tx_type; |
| 1115 | err = netdev_master_upper_dev_link(port->dev, team->dev, NULL, |
| 1116 | &lag_upper_info); |
Jiri Pirko | d7d3c05 | 2014-08-25 21:38:27 +0200 | [diff] [blame] | 1117 | if (err) |
| 1118 | return err; |
Jiri Pirko | 8fd7285 | 2015-12-03 12:12:13 +0100 | [diff] [blame] | 1119 | port->dev->priv_flags |= IFF_TEAM_PORT; |
Jiri Pirko | d7d3c05 | 2014-08-25 21:38:27 +0200 | [diff] [blame] | 1120 | return 0; |
| 1121 | } |
| 1122 | |
Jiri Pirko | 8fd7285 | 2015-12-03 12:12:13 +0100 | [diff] [blame] | 1123 | static void team_upper_dev_unlink(struct team *team, struct team_port *port) |
Jiri Pirko | d7d3c05 | 2014-08-25 21:38:27 +0200 | [diff] [blame] | 1124 | { |
Jiri Pirko | 8fd7285 | 2015-12-03 12:12:13 +0100 | [diff] [blame] | 1125 | netdev_upper_dev_unlink(port->dev, team->dev); |
| 1126 | port->dev->priv_flags &= ~IFF_TEAM_PORT; |
Jiri Pirko | d7d3c05 | 2014-08-25 21:38:27 +0200 | [diff] [blame] | 1127 | } |
| 1128 | |
Jiri Pirko | 10f3f51 | 2012-09-21 01:51:59 +0000 | [diff] [blame] | 1129 | static void __team_port_change_port_added(struct team_port *port, bool linkup); |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 1130 | static int team_dev_type_check_change(struct net_device *dev, |
| 1131 | struct net_device *port_dev); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1132 | |
| 1133 | static int team_port_add(struct team *team, struct net_device *port_dev) |
| 1134 | { |
| 1135 | struct net_device *dev = team->dev; |
| 1136 | struct team_port *port; |
| 1137 | char *portname = port_dev->name; |
| 1138 | int err; |
| 1139 | |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 1140 | if (port_dev->flags & IFF_LOOPBACK) { |
| 1141 | netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1142 | portname); |
| 1143 | return -EINVAL; |
| 1144 | } |
| 1145 | |
| 1146 | if (team_port_exists(port_dev)) { |
| 1147 | netdev_err(dev, "Device %s is already a port " |
| 1148 | "of a team device\n", portname); |
| 1149 | return -EBUSY; |
| 1150 | } |
| 1151 | |
Jiri Pirko | 2c33bb3 | 2012-08-23 03:26:53 +0000 | [diff] [blame] | 1152 | if (port_dev->features & NETIF_F_VLAN_CHALLENGED && |
| 1153 | vlan_uses_dev(dev)) { |
| 1154 | netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", |
| 1155 | portname); |
| 1156 | return -EPERM; |
| 1157 | } |
| 1158 | |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 1159 | err = team_dev_type_check_change(dev, port_dev); |
| 1160 | if (err) |
| 1161 | return err; |
| 1162 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1163 | if (port_dev->flags & IFF_UP) { |
| 1164 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", |
| 1165 | portname); |
| 1166 | return -EBUSY; |
| 1167 | } |
| 1168 | |
Jiri Pirko | 5149ee5 | 2012-06-19 05:54:05 +0000 | [diff] [blame] | 1169 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
| 1170 | GFP_KERNEL); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1171 | if (!port) |
| 1172 | return -ENOMEM; |
| 1173 | |
| 1174 | port->dev = port_dev; |
| 1175 | port->team = team; |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1176 | INIT_LIST_HEAD(&port->qom_list); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1177 | |
| 1178 | port->orig.mtu = port_dev->mtu; |
| 1179 | err = dev_set_mtu(port_dev, dev->mtu); |
| 1180 | if (err) { |
| 1181 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); |
| 1182 | goto err_set_mtu; |
| 1183 | } |
| 1184 | |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 1185 | memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1186 | |
| 1187 | err = team_port_enter(team, port); |
| 1188 | if (err) { |
| 1189 | netdev_err(dev, "Device %s failed to enter team mode\n", |
| 1190 | portname); |
| 1191 | goto err_port_enter; |
| 1192 | } |
| 1193 | |
| 1194 | err = dev_open(port_dev); |
| 1195 | if (err) { |
| 1196 | netdev_dbg(dev, "Device %s opening failed\n", |
| 1197 | portname); |
| 1198 | goto err_dev_open; |
| 1199 | } |
| 1200 | |
Xin Long | cb41c99 | 2016-03-30 10:58:39 +0800 | [diff] [blame] | 1201 | dev_uc_sync_multiple(port_dev, dev); |
| 1202 | dev_mc_sync_multiple(port_dev, dev); |
| 1203 | |
Jiri Pirko | 5745918 | 2011-12-08 04:11:20 +0000 | [diff] [blame] | 1204 | err = vlan_vids_add_by_dev(port_dev, dev); |
| 1205 | if (err) { |
| 1206 | netdev_err(dev, "Failed to add vlan ids to device %s\n", |
| 1207 | portname); |
| 1208 | goto err_vids_add; |
| 1209 | } |
| 1210 | |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 1211 | err = team_port_enable_netpoll(team, port); |
stephen hemminger | 0fb52a2 | 2013-07-24 11:52:44 -0700 | [diff] [blame] | 1212 | if (err) { |
| 1213 | netdev_err(dev, "Failed to enable netpoll on device %s\n", |
| 1214 | portname); |
| 1215 | goto err_enable_netpoll; |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1216 | } |
| 1217 | |
Michal Kubeček | fbe168b | 2014-11-13 07:54:50 +0100 | [diff] [blame] | 1218 | if (!(dev->features & NETIF_F_LRO)) |
| 1219 | dev_disable_lro(port_dev); |
| 1220 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1221 | err = netdev_rx_handler_register(port_dev, team_handle_frame, |
| 1222 | port); |
| 1223 | if (err) { |
| 1224 | netdev_err(dev, "Device %s failed to register rx_handler\n", |
| 1225 | portname); |
| 1226 | goto err_handler_register; |
| 1227 | } |
| 1228 | |
Jiri Pirko | 8fd7285 | 2015-12-03 12:12:13 +0100 | [diff] [blame] | 1229 | err = team_upper_dev_link(team, port); |
Jiri Pirko | d7d3c05 | 2014-08-25 21:38:27 +0200 | [diff] [blame] | 1230 | if (err) { |
| 1231 | netdev_err(dev, "Device %s failed to set upper link\n", |
| 1232 | portname); |
| 1233 | goto err_set_upper_link; |
| 1234 | } |
| 1235 | |
Jiri Pirko | 35b384b | 2012-06-19 05:54:19 +0000 | [diff] [blame] | 1236 | err = __team_option_inst_add_port(team, port); |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 1237 | if (err) { |
| 1238 | netdev_err(dev, "Device %s failed to add per-port options\n", |
| 1239 | portname); |
| 1240 | goto err_option_port_add; |
| 1241 | } |
| 1242 | |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 1243 | port->index = -1; |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 1244 | list_add_tail_rcu(&port->list, &team->port_list); |
Jiri Pirko | 72df935 | 2013-06-08 15:00:54 +0200 | [diff] [blame] | 1245 | team_port_enable(team, port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1246 | __team_compute_features(team); |
Jiri Pirko | 10f3f51 | 2012-09-21 01:51:59 +0000 | [diff] [blame] | 1247 | __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); |
Jiri Pirko | 35b384b | 2012-06-19 05:54:19 +0000 | [diff] [blame] | 1248 | __team_options_change_check(team); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1249 | |
| 1250 | netdev_info(dev, "Port device %s added\n", portname); |
| 1251 | |
| 1252 | return 0; |
| 1253 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 1254 | err_option_port_add: |
Jiri Pirko | 8fd7285 | 2015-12-03 12:12:13 +0100 | [diff] [blame] | 1255 | team_upper_dev_unlink(team, port); |
Jiri Pirko | d7d3c05 | 2014-08-25 21:38:27 +0200 | [diff] [blame] | 1256 | |
| 1257 | err_set_upper_link: |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 1258 | netdev_rx_handler_unregister(port_dev); |
| 1259 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1260 | err_handler_register: |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1261 | team_port_disable_netpoll(port); |
| 1262 | |
| 1263 | err_enable_netpoll: |
Jiri Pirko | 5745918 | 2011-12-08 04:11:20 +0000 | [diff] [blame] | 1264 | vlan_vids_del_by_dev(port_dev, dev); |
| 1265 | |
| 1266 | err_vids_add: |
Xin Long | cb41c99 | 2016-03-30 10:58:39 +0800 | [diff] [blame] | 1267 | dev_uc_unsync(port_dev, dev); |
| 1268 | dev_mc_unsync(port_dev, dev); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1269 | dev_close(port_dev); |
| 1270 | |
| 1271 | err_dev_open: |
| 1272 | team_port_leave(team, port); |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 1273 | team_port_set_orig_dev_addr(port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1274 | |
| 1275 | err_port_enter: |
| 1276 | dev_set_mtu(port_dev, port->orig.mtu); |
| 1277 | |
| 1278 | err_set_mtu: |
| 1279 | kfree(port); |
| 1280 | |
| 1281 | return err; |
| 1282 | } |
| 1283 | |
Jiri Pirko | 10f3f51 | 2012-09-21 01:51:59 +0000 | [diff] [blame] | 1284 | static void __team_port_change_port_removed(struct team_port *port); |
| 1285 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1286 | static int team_port_del(struct team *team, struct net_device *port_dev) |
| 1287 | { |
| 1288 | struct net_device *dev = team->dev; |
| 1289 | struct team_port *port; |
| 1290 | char *portname = port_dev->name; |
| 1291 | |
| 1292 | port = team_port_get_rtnl(port_dev); |
| 1293 | if (!port || !team_port_find(team, port)) { |
| 1294 | netdev_err(dev, "Device %s does not act as a port of this team\n", |
| 1295 | portname); |
| 1296 | return -ENOENT; |
| 1297 | } |
| 1298 | |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 1299 | team_port_disable(team, port); |
| 1300 | list_del_rcu(&port->list); |
Jiri Pirko | 8fd7285 | 2015-12-03 12:12:13 +0100 | [diff] [blame] | 1301 | team_upper_dev_unlink(team, port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1302 | netdev_rx_handler_unregister(port_dev); |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1303 | team_port_disable_netpoll(port); |
Jiri Pirko | 5745918 | 2011-12-08 04:11:20 +0000 | [diff] [blame] | 1304 | vlan_vids_del_by_dev(port_dev, dev); |
Vlad Yasevich | ba81276 | 2013-03-07 07:59:25 +0000 | [diff] [blame] | 1305 | dev_uc_unsync(port_dev, dev); |
| 1306 | dev_mc_unsync(port_dev, dev); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1307 | dev_close(port_dev); |
| 1308 | team_port_leave(team, port); |
Jiri Pirko | c3969d80 | 2013-02-01 08:17:25 +0000 | [diff] [blame] | 1309 | |
| 1310 | __team_option_inst_mark_removed_port(team, port); |
| 1311 | __team_options_change_check(team); |
| 1312 | __team_option_inst_del_port(team, port); |
| 1313 | __team_port_change_port_removed(port); |
| 1314 | |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 1315 | team_port_set_orig_dev_addr(port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1316 | dev_set_mtu(port_dev, port->orig.mtu); |
Jiri Pirko | d80b35b | 2013-06-10 17:42:24 +0200 | [diff] [blame] | 1317 | kfree_rcu(port, rcu); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1318 | netdev_info(dev, "Port device %s removed\n", portname); |
| 1319 | __team_compute_features(team); |
| 1320 | |
| 1321 | return 0; |
| 1322 | } |
| 1323 | |
| 1324 | |
| 1325 | /***************** |
| 1326 | * Net device ops |
| 1327 | *****************/ |
| 1328 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 1329 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1330 | { |
Jiri Pirko | d299cd5 | 2012-06-19 05:54:04 +0000 | [diff] [blame] | 1331 | ctx->data.str_val = team->mode->kind; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1332 | return 0; |
| 1333 | } |
| 1334 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 1335 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1336 | { |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 1337 | return team_change_mode(team, ctx->data.str_val); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1338 | } |
| 1339 | |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 1340 | static int team_notify_peers_count_get(struct team *team, |
| 1341 | struct team_gsetter_ctx *ctx) |
| 1342 | { |
| 1343 | ctx->data.u32_val = team->notify_peers.count; |
| 1344 | return 0; |
| 1345 | } |
| 1346 | |
| 1347 | static int team_notify_peers_count_set(struct team *team, |
| 1348 | struct team_gsetter_ctx *ctx) |
| 1349 | { |
| 1350 | team->notify_peers.count = ctx->data.u32_val; |
| 1351 | return 0; |
| 1352 | } |
| 1353 | |
| 1354 | static int team_notify_peers_interval_get(struct team *team, |
| 1355 | struct team_gsetter_ctx *ctx) |
| 1356 | { |
| 1357 | ctx->data.u32_val = team->notify_peers.interval; |
| 1358 | return 0; |
| 1359 | } |
| 1360 | |
| 1361 | static int team_notify_peers_interval_set(struct team *team, |
| 1362 | struct team_gsetter_ctx *ctx) |
| 1363 | { |
| 1364 | team->notify_peers.interval = ctx->data.u32_val; |
| 1365 | return 0; |
| 1366 | } |
| 1367 | |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 1368 | static int team_mcast_rejoin_count_get(struct team *team, |
| 1369 | struct team_gsetter_ctx *ctx) |
| 1370 | { |
| 1371 | ctx->data.u32_val = team->mcast_rejoin.count; |
| 1372 | return 0; |
| 1373 | } |
| 1374 | |
| 1375 | static int team_mcast_rejoin_count_set(struct team *team, |
| 1376 | struct team_gsetter_ctx *ctx) |
| 1377 | { |
| 1378 | team->mcast_rejoin.count = ctx->data.u32_val; |
| 1379 | return 0; |
| 1380 | } |
| 1381 | |
| 1382 | static int team_mcast_rejoin_interval_get(struct team *team, |
| 1383 | struct team_gsetter_ctx *ctx) |
| 1384 | { |
| 1385 | ctx->data.u32_val = team->mcast_rejoin.interval; |
| 1386 | return 0; |
| 1387 | } |
| 1388 | |
| 1389 | static int team_mcast_rejoin_interval_set(struct team *team, |
| 1390 | struct team_gsetter_ctx *ctx) |
| 1391 | { |
| 1392 | team->mcast_rejoin.interval = ctx->data.u32_val; |
| 1393 | return 0; |
| 1394 | } |
| 1395 | |
Jiri Pirko | acd6996 | 2012-04-20 04:42:06 +0000 | [diff] [blame] | 1396 | static int team_port_en_option_get(struct team *team, |
| 1397 | struct team_gsetter_ctx *ctx) |
| 1398 | { |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 1399 | struct team_port *port = ctx->info->port; |
| 1400 | |
| 1401 | ctx->data.bool_val = team_port_enabled(port); |
Jiri Pirko | acd6996 | 2012-04-20 04:42:06 +0000 | [diff] [blame] | 1402 | return 0; |
| 1403 | } |
| 1404 | |
| 1405 | static int team_port_en_option_set(struct team *team, |
| 1406 | struct team_gsetter_ctx *ctx) |
| 1407 | { |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 1408 | struct team_port *port = ctx->info->port; |
| 1409 | |
Jiri Pirko | acd6996 | 2012-04-20 04:42:06 +0000 | [diff] [blame] | 1410 | if (ctx->data.bool_val) |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 1411 | team_port_enable(team, port); |
Jiri Pirko | acd6996 | 2012-04-20 04:42:06 +0000 | [diff] [blame] | 1412 | else |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 1413 | team_port_disable(team, port); |
Jiri Pirko | acd6996 | 2012-04-20 04:42:06 +0000 | [diff] [blame] | 1414 | return 0; |
| 1415 | } |
| 1416 | |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 1417 | static int team_user_linkup_option_get(struct team *team, |
| 1418 | struct team_gsetter_ctx *ctx) |
| 1419 | { |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 1420 | struct team_port *port = ctx->info->port; |
| 1421 | |
| 1422 | ctx->data.bool_val = port->user.linkup; |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 1423 | return 0; |
| 1424 | } |
| 1425 | |
Jiri Pirko | f5e0d34 | 2013-11-28 18:01:38 +0100 | [diff] [blame] | 1426 | static void __team_carrier_check(struct team *team); |
| 1427 | |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 1428 | static int team_user_linkup_option_set(struct team *team, |
| 1429 | struct team_gsetter_ctx *ctx) |
| 1430 | { |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 1431 | struct team_port *port = ctx->info->port; |
| 1432 | |
| 1433 | port->user.linkup = ctx->data.bool_val; |
| 1434 | team_refresh_port_linkup(port); |
Jiri Pirko | f5e0d34 | 2013-11-28 18:01:38 +0100 | [diff] [blame] | 1435 | __team_carrier_check(port->team); |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 1436 | return 0; |
| 1437 | } |
| 1438 | |
| 1439 | static int team_user_linkup_en_option_get(struct team *team, |
| 1440 | struct team_gsetter_ctx *ctx) |
| 1441 | { |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 1442 | struct team_port *port = ctx->info->port; |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 1443 | |
| 1444 | ctx->data.bool_val = port->user.linkup_enabled; |
| 1445 | return 0; |
| 1446 | } |
| 1447 | |
| 1448 | static int team_user_linkup_en_option_set(struct team *team, |
| 1449 | struct team_gsetter_ctx *ctx) |
| 1450 | { |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 1451 | struct team_port *port = ctx->info->port; |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 1452 | |
| 1453 | port->user.linkup_enabled = ctx->data.bool_val; |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 1454 | team_refresh_port_linkup(port); |
Jiri Pirko | f5e0d34 | 2013-11-28 18:01:38 +0100 | [diff] [blame] | 1455 | __team_carrier_check(port->team); |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 1456 | return 0; |
| 1457 | } |
| 1458 | |
Jiri Pirko | a86fc6b | 2012-07-27 06:28:54 +0000 | [diff] [blame] | 1459 | static int team_priority_option_get(struct team *team, |
| 1460 | struct team_gsetter_ctx *ctx) |
| 1461 | { |
| 1462 | struct team_port *port = ctx->info->port; |
| 1463 | |
| 1464 | ctx->data.s32_val = port->priority; |
| 1465 | return 0; |
| 1466 | } |
| 1467 | |
| 1468 | static int team_priority_option_set(struct team *team, |
| 1469 | struct team_gsetter_ctx *ctx) |
| 1470 | { |
| 1471 | struct team_port *port = ctx->info->port; |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 1472 | s32 priority = ctx->data.s32_val; |
Jiri Pirko | a86fc6b | 2012-07-27 06:28:54 +0000 | [diff] [blame] | 1473 | |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 1474 | if (port->priority == priority) |
| 1475 | return 0; |
| 1476 | port->priority = priority; |
| 1477 | team_queue_override_port_prio_changed(team, port); |
Jiri Pirko | a86fc6b | 2012-07-27 06:28:54 +0000 | [diff] [blame] | 1478 | return 0; |
| 1479 | } |
| 1480 | |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1481 | static int team_queue_id_option_get(struct team *team, |
| 1482 | struct team_gsetter_ctx *ctx) |
| 1483 | { |
| 1484 | struct team_port *port = ctx->info->port; |
| 1485 | |
| 1486 | ctx->data.u32_val = port->queue_id; |
| 1487 | return 0; |
| 1488 | } |
| 1489 | |
| 1490 | static int team_queue_id_option_set(struct team *team, |
| 1491 | struct team_gsetter_ctx *ctx) |
| 1492 | { |
| 1493 | struct team_port *port = ctx->info->port; |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 1494 | u16 new_queue_id = ctx->data.u32_val; |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1495 | |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 1496 | if (port->queue_id == new_queue_id) |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1497 | return 0; |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 1498 | if (new_queue_id >= team->dev->real_num_tx_queues) |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1499 | return -EINVAL; |
Jiri Pirko | 6c31ff3 | 2013-06-10 17:42:23 +0200 | [diff] [blame] | 1500 | team_queue_override_port_change_queue_id(team, port, new_queue_id); |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1501 | return 0; |
| 1502 | } |
| 1503 | |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 1504 | static const struct team_option team_options[] = { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1505 | { |
| 1506 | .name = "mode", |
| 1507 | .type = TEAM_OPTION_TYPE_STRING, |
| 1508 | .getter = team_mode_option_get, |
| 1509 | .setter = team_mode_option_set, |
| 1510 | }, |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 1511 | { |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 1512 | .name = "notify_peers_count", |
| 1513 | .type = TEAM_OPTION_TYPE_U32, |
| 1514 | .getter = team_notify_peers_count_get, |
| 1515 | .setter = team_notify_peers_count_set, |
| 1516 | }, |
| 1517 | { |
| 1518 | .name = "notify_peers_interval", |
| 1519 | .type = TEAM_OPTION_TYPE_U32, |
| 1520 | .getter = team_notify_peers_interval_get, |
| 1521 | .setter = team_notify_peers_interval_set, |
| 1522 | }, |
| 1523 | { |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 1524 | .name = "mcast_rejoin_count", |
| 1525 | .type = TEAM_OPTION_TYPE_U32, |
| 1526 | .getter = team_mcast_rejoin_count_get, |
| 1527 | .setter = team_mcast_rejoin_count_set, |
| 1528 | }, |
| 1529 | { |
| 1530 | .name = "mcast_rejoin_interval", |
| 1531 | .type = TEAM_OPTION_TYPE_U32, |
| 1532 | .getter = team_mcast_rejoin_interval_get, |
| 1533 | .setter = team_mcast_rejoin_interval_set, |
| 1534 | }, |
| 1535 | { |
Jiri Pirko | acd6996 | 2012-04-20 04:42:06 +0000 | [diff] [blame] | 1536 | .name = "enabled", |
| 1537 | .type = TEAM_OPTION_TYPE_BOOL, |
| 1538 | .per_port = true, |
| 1539 | .getter = team_port_en_option_get, |
| 1540 | .setter = team_port_en_option_set, |
| 1541 | }, |
| 1542 | { |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 1543 | .name = "user_linkup", |
| 1544 | .type = TEAM_OPTION_TYPE_BOOL, |
| 1545 | .per_port = true, |
| 1546 | .getter = team_user_linkup_option_get, |
| 1547 | .setter = team_user_linkup_option_set, |
| 1548 | }, |
| 1549 | { |
| 1550 | .name = "user_linkup_enabled", |
| 1551 | .type = TEAM_OPTION_TYPE_BOOL, |
| 1552 | .per_port = true, |
| 1553 | .getter = team_user_linkup_en_option_get, |
| 1554 | .setter = team_user_linkup_en_option_set, |
| 1555 | }, |
Jiri Pirko | a86fc6b | 2012-07-27 06:28:54 +0000 | [diff] [blame] | 1556 | { |
| 1557 | .name = "priority", |
| 1558 | .type = TEAM_OPTION_TYPE_S32, |
| 1559 | .per_port = true, |
| 1560 | .getter = team_priority_option_get, |
| 1561 | .setter = team_priority_option_set, |
| 1562 | }, |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1563 | { |
| 1564 | .name = "queue_id", |
| 1565 | .type = TEAM_OPTION_TYPE_U32, |
| 1566 | .per_port = true, |
| 1567 | .getter = team_queue_id_option_get, |
| 1568 | .setter = team_queue_id_option_set, |
| 1569 | }, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1570 | }; |
| 1571 | |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 1572 | static struct lock_class_key team_netdev_xmit_lock_key; |
| 1573 | static struct lock_class_key team_netdev_addr_lock_key; |
Eric Dumazet | b3c581d | 2012-10-03 23:18:39 +0000 | [diff] [blame] | 1574 | static struct lock_class_key team_tx_busylock_key; |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 1575 | |
| 1576 | static void team_set_lockdep_class_one(struct net_device *dev, |
| 1577 | struct netdev_queue *txq, |
| 1578 | void *unused) |
| 1579 | { |
| 1580 | lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); |
| 1581 | } |
| 1582 | |
| 1583 | static void team_set_lockdep_class(struct net_device *dev) |
| 1584 | { |
| 1585 | lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); |
| 1586 | netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); |
Eric Dumazet | b3c581d | 2012-10-03 23:18:39 +0000 | [diff] [blame] | 1587 | dev->qdisc_tx_busylock = &team_tx_busylock_key; |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 1588 | } |
| 1589 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1590 | static int team_init(struct net_device *dev) |
| 1591 | { |
| 1592 | struct team *team = netdev_priv(dev); |
| 1593 | int i; |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 1594 | int err; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1595 | |
| 1596 | team->dev = dev; |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1597 | mutex_init(&team->lock); |
Jiri Pirko | d299cd5 | 2012-06-19 05:54:04 +0000 | [diff] [blame] | 1598 | team_set_no_mode(team); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1599 | |
WANG Cong | 1c213bd | 2014-02-13 11:46:28 -0800 | [diff] [blame] | 1600 | team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1601 | if (!team->pcpu_stats) |
| 1602 | return -ENOMEM; |
| 1603 | |
| 1604 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) |
Jiri Pirko | 19a0b58 | 2012-04-20 04:42:05 +0000 | [diff] [blame] | 1605 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1606 | INIT_LIST_HEAD(&team->port_list); |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1607 | err = team_queue_override_init(team); |
| 1608 | if (err) |
| 1609 | goto err_team_queue_override_init; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1610 | |
| 1611 | team_adjust_ops(team); |
| 1612 | |
| 1613 | INIT_LIST_HEAD(&team->option_list); |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 1614 | INIT_LIST_HEAD(&team->option_inst_list); |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 1615 | |
| 1616 | team_notify_peers_init(team); |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 1617 | team_mcast_rejoin_init(team); |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 1618 | |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 1619 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
| 1620 | if (err) |
| 1621 | goto err_options_register; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1622 | netif_carrier_off(dev); |
| 1623 | |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 1624 | team_set_lockdep_class(dev); |
| 1625 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1626 | return 0; |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 1627 | |
| 1628 | err_options_register: |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 1629 | team_mcast_rejoin_fini(team); |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 1630 | team_notify_peers_fini(team); |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1631 | team_queue_override_fini(team); |
| 1632 | err_team_queue_override_init: |
Jiri Pirko | 358b838 | 2011-11-16 11:09:09 +0000 | [diff] [blame] | 1633 | free_percpu(team->pcpu_stats); |
| 1634 | |
| 1635 | return err; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1636 | } |
| 1637 | |
| 1638 | static void team_uninit(struct net_device *dev) |
| 1639 | { |
| 1640 | struct team *team = netdev_priv(dev); |
| 1641 | struct team_port *port; |
| 1642 | struct team_port *tmp; |
| 1643 | |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1644 | mutex_lock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1645 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
| 1646 | team_port_del(team, port->dev); |
| 1647 | |
| 1648 | __team_change_mode(team, NULL); /* cleanup */ |
| 1649 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); |
Jiri Pirko | 492b200 | 2013-07-20 12:13:54 +0200 | [diff] [blame] | 1650 | team_mcast_rejoin_fini(team); |
Jiri Pirko | fc423ff | 2013-07-20 12:13:52 +0200 | [diff] [blame] | 1651 | team_notify_peers_fini(team); |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1652 | team_queue_override_fini(team); |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1653 | mutex_unlock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1654 | } |
| 1655 | |
| 1656 | static void team_destructor(struct net_device *dev) |
| 1657 | { |
| 1658 | struct team *team = netdev_priv(dev); |
| 1659 | |
| 1660 | free_percpu(team->pcpu_stats); |
| 1661 | free_netdev(dev); |
| 1662 | } |
| 1663 | |
| 1664 | static int team_open(struct net_device *dev) |
| 1665 | { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1666 | return 0; |
| 1667 | } |
| 1668 | |
| 1669 | static int team_close(struct net_device *dev) |
| 1670 | { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1671 | return 0; |
| 1672 | } |
| 1673 | |
| 1674 | /* |
| 1675 | * note: already called with rcu_read_lock |
| 1676 | */ |
| 1677 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) |
| 1678 | { |
| 1679 | struct team *team = netdev_priv(dev); |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1680 | bool tx_success; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1681 | unsigned int len = skb->len; |
| 1682 | |
Jiri Pirko | 8ff5105 | 2012-07-27 06:28:55 +0000 | [diff] [blame] | 1683 | tx_success = team_queue_override_transmit(team, skb); |
| 1684 | if (!tx_success) |
| 1685 | tx_success = team->ops.transmit(team, skb); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1686 | if (tx_success) { |
| 1687 | struct team_pcpu_stats *pcpu_stats; |
| 1688 | |
| 1689 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); |
| 1690 | u64_stats_update_begin(&pcpu_stats->syncp); |
| 1691 | pcpu_stats->tx_packets++; |
| 1692 | pcpu_stats->tx_bytes += len; |
| 1693 | u64_stats_update_end(&pcpu_stats->syncp); |
| 1694 | } else { |
| 1695 | this_cpu_inc(team->pcpu_stats->tx_dropped); |
| 1696 | } |
| 1697 | |
| 1698 | return NETDEV_TX_OK; |
| 1699 | } |
| 1700 | |
Jason Wang | f663dd9 | 2014-01-10 16:18:26 +0800 | [diff] [blame] | 1701 | static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb, |
Daniel Borkmann | 99932d4 | 2014-02-16 15:55:20 +0100 | [diff] [blame] | 1702 | void *accel_priv, select_queue_fallback_t fallback) |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 1703 | { |
| 1704 | /* |
| 1705 | * This helper function exists to help dev_pick_tx get the correct |
| 1706 | * destination queue. Using a helper function skips a call to |
| 1707 | * skb_tx_hash and will put the skbs in the queue we expect on their |
| 1708 | * way down to the team driver. |
| 1709 | */ |
| 1710 | u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; |
| 1711 | |
| 1712 | /* |
| 1713 | * Save the original txq to restore before passing to the driver |
| 1714 | */ |
| 1715 | qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; |
| 1716 | |
| 1717 | if (unlikely(txq >= dev->real_num_tx_queues)) { |
| 1718 | do { |
| 1719 | txq -= dev->real_num_tx_queues; |
| 1720 | } while (txq >= dev->real_num_tx_queues); |
| 1721 | } |
| 1722 | return txq; |
| 1723 | } |
| 1724 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1725 | static void team_change_rx_flags(struct net_device *dev, int change) |
| 1726 | { |
| 1727 | struct team *team = netdev_priv(dev); |
| 1728 | struct team_port *port; |
| 1729 | int inc; |
| 1730 | |
| 1731 | rcu_read_lock(); |
| 1732 | list_for_each_entry_rcu(port, &team->port_list, list) { |
| 1733 | if (change & IFF_PROMISC) { |
| 1734 | inc = dev->flags & IFF_PROMISC ? 1 : -1; |
| 1735 | dev_set_promiscuity(port->dev, inc); |
| 1736 | } |
| 1737 | if (change & IFF_ALLMULTI) { |
| 1738 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; |
| 1739 | dev_set_allmulti(port->dev, inc); |
| 1740 | } |
| 1741 | } |
| 1742 | rcu_read_unlock(); |
| 1743 | } |
| 1744 | |
| 1745 | static void team_set_rx_mode(struct net_device *dev) |
| 1746 | { |
| 1747 | struct team *team = netdev_priv(dev); |
| 1748 | struct team_port *port; |
| 1749 | |
| 1750 | rcu_read_lock(); |
| 1751 | list_for_each_entry_rcu(port, &team->port_list, list) { |
Vlad Yasevich | 72b2703 | 2013-04-15 09:54:26 +0000 | [diff] [blame] | 1752 | dev_uc_sync_multiple(port->dev, dev); |
| 1753 | dev_mc_sync_multiple(port->dev, dev); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1754 | } |
| 1755 | rcu_read_unlock(); |
| 1756 | } |
| 1757 | |
| 1758 | static int team_set_mac_address(struct net_device *dev, void *p) |
| 1759 | { |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 1760 | struct sockaddr *addr = p; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1761 | struct team *team = netdev_priv(dev); |
| 1762 | struct team_port *port; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1763 | |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 1764 | if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) |
| 1765 | return -EADDRNOTAVAIL; |
| 1766 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); |
Jiri Pirko | 9215f43 | 2015-03-04 08:36:31 +0100 | [diff] [blame] | 1767 | mutex_lock(&team->lock); |
| 1768 | list_for_each_entry(port, &team->port_list, list) |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 1769 | if (team->ops.port_change_dev_addr) |
| 1770 | team->ops.port_change_dev_addr(team, port); |
Jiri Pirko | 9215f43 | 2015-03-04 08:36:31 +0100 | [diff] [blame] | 1771 | mutex_unlock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1772 | return 0; |
| 1773 | } |
| 1774 | |
| 1775 | static int team_change_mtu(struct net_device *dev, int new_mtu) |
| 1776 | { |
| 1777 | struct team *team = netdev_priv(dev); |
| 1778 | struct team_port *port; |
| 1779 | int err; |
| 1780 | |
| 1781 | /* |
| 1782 | * Alhough this is reader, it's guarded by team lock. It's not possible |
| 1783 | * to traverse list in reverse under rcu_read_lock |
| 1784 | */ |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1785 | mutex_lock(&team->lock); |
Jiri Pirko | 9d0d68f | 2014-05-29 20:46:17 +0200 | [diff] [blame] | 1786 | team->port_mtu_change_allowed = true; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1787 | list_for_each_entry(port, &team->port_list, list) { |
| 1788 | err = dev_set_mtu(port->dev, new_mtu); |
| 1789 | if (err) { |
| 1790 | netdev_err(dev, "Device %s failed to change mtu", |
| 1791 | port->dev->name); |
| 1792 | goto unwind; |
| 1793 | } |
| 1794 | } |
Jiri Pirko | 9d0d68f | 2014-05-29 20:46:17 +0200 | [diff] [blame] | 1795 | team->port_mtu_change_allowed = false; |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1796 | mutex_unlock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1797 | |
| 1798 | dev->mtu = new_mtu; |
| 1799 | |
| 1800 | return 0; |
| 1801 | |
| 1802 | unwind: |
| 1803 | list_for_each_entry_continue_reverse(port, &team->port_list, list) |
| 1804 | dev_set_mtu(port->dev, dev->mtu); |
Jiri Pirko | 9d0d68f | 2014-05-29 20:46:17 +0200 | [diff] [blame] | 1805 | team->port_mtu_change_allowed = false; |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1806 | mutex_unlock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1807 | |
| 1808 | return err; |
| 1809 | } |
| 1810 | |
| 1811 | static struct rtnl_link_stats64 * |
| 1812 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) |
| 1813 | { |
| 1814 | struct team *team = netdev_priv(dev); |
| 1815 | struct team_pcpu_stats *p; |
| 1816 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; |
Jarod Wilson | bb63daf | 2016-02-01 18:51:06 -0500 | [diff] [blame] | 1817 | u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1818 | unsigned int start; |
| 1819 | int i; |
| 1820 | |
| 1821 | for_each_possible_cpu(i) { |
| 1822 | p = per_cpu_ptr(team->pcpu_stats, i); |
| 1823 | do { |
Eric W. Biederman | 57a7744 | 2014-03-13 21:26:42 -0700 | [diff] [blame] | 1824 | start = u64_stats_fetch_begin_irq(&p->syncp); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1825 | rx_packets = p->rx_packets; |
| 1826 | rx_bytes = p->rx_bytes; |
| 1827 | rx_multicast = p->rx_multicast; |
| 1828 | tx_packets = p->tx_packets; |
| 1829 | tx_bytes = p->tx_bytes; |
Eric W. Biederman | 57a7744 | 2014-03-13 21:26:42 -0700 | [diff] [blame] | 1830 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1831 | |
| 1832 | stats->rx_packets += rx_packets; |
| 1833 | stats->rx_bytes += rx_bytes; |
| 1834 | stats->multicast += rx_multicast; |
| 1835 | stats->tx_packets += tx_packets; |
| 1836 | stats->tx_bytes += tx_bytes; |
| 1837 | /* |
Jarod Wilson | bb63daf | 2016-02-01 18:51:06 -0500 | [diff] [blame] | 1838 | * rx_dropped, tx_dropped & rx_nohandler are u32, |
| 1839 | * updated without syncp protection. |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1840 | */ |
| 1841 | rx_dropped += p->rx_dropped; |
| 1842 | tx_dropped += p->tx_dropped; |
Jarod Wilson | bb63daf | 2016-02-01 18:51:06 -0500 | [diff] [blame] | 1843 | rx_nohandler += p->rx_nohandler; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1844 | } |
| 1845 | stats->rx_dropped = rx_dropped; |
| 1846 | stats->tx_dropped = tx_dropped; |
Jarod Wilson | bb63daf | 2016-02-01 18:51:06 -0500 | [diff] [blame] | 1847 | stats->rx_nohandler = rx_nohandler; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1848 | return stats; |
| 1849 | } |
| 1850 | |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 1851 | static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1852 | { |
| 1853 | struct team *team = netdev_priv(dev); |
| 1854 | struct team_port *port; |
Jiri Pirko | 87002b0 | 2011-12-08 04:11:17 +0000 | [diff] [blame] | 1855 | int err; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1856 | |
Jiri Pirko | 87002b0 | 2011-12-08 04:11:17 +0000 | [diff] [blame] | 1857 | /* |
| 1858 | * Alhough this is reader, it's guarded by team lock. It's not possible |
| 1859 | * to traverse list in reverse under rcu_read_lock |
| 1860 | */ |
| 1861 | mutex_lock(&team->lock); |
| 1862 | list_for_each_entry(port, &team->port_list, list) { |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 1863 | err = vlan_vid_add(port->dev, proto, vid); |
Jiri Pirko | 87002b0 | 2011-12-08 04:11:17 +0000 | [diff] [blame] | 1864 | if (err) |
| 1865 | goto unwind; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1866 | } |
Jiri Pirko | 87002b0 | 2011-12-08 04:11:17 +0000 | [diff] [blame] | 1867 | mutex_unlock(&team->lock); |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 1868 | |
| 1869 | return 0; |
Jiri Pirko | 87002b0 | 2011-12-08 04:11:17 +0000 | [diff] [blame] | 1870 | |
| 1871 | unwind: |
| 1872 | list_for_each_entry_continue_reverse(port, &team->port_list, list) |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 1873 | vlan_vid_del(port->dev, proto, vid); |
Jiri Pirko | 87002b0 | 2011-12-08 04:11:17 +0000 | [diff] [blame] | 1874 | mutex_unlock(&team->lock); |
| 1875 | |
| 1876 | return err; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1877 | } |
| 1878 | |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 1879 | static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1880 | { |
| 1881 | struct team *team = netdev_priv(dev); |
| 1882 | struct team_port *port; |
| 1883 | |
Ido Schimmel | 60a6531 | 2016-01-18 17:30:22 +0200 | [diff] [blame] | 1884 | mutex_lock(&team->lock); |
| 1885 | list_for_each_entry(port, &team->port_list, list) |
Patrick McHardy | 80d5c36 | 2013-04-19 02:04:28 +0000 | [diff] [blame] | 1886 | vlan_vid_del(port->dev, proto, vid); |
Ido Schimmel | 60a6531 | 2016-01-18 17:30:22 +0200 | [diff] [blame] | 1887 | mutex_unlock(&team->lock); |
Jiri Pirko | 8e58613 | 2011-12-08 19:52:37 -0500 | [diff] [blame] | 1888 | |
| 1889 | return 0; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1890 | } |
| 1891 | |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1892 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 1893 | static void team_poll_controller(struct net_device *dev) |
| 1894 | { |
| 1895 | } |
| 1896 | |
| 1897 | static void __team_netpoll_cleanup(struct team *team) |
| 1898 | { |
| 1899 | struct team_port *port; |
| 1900 | |
| 1901 | list_for_each_entry(port, &team->port_list, list) |
| 1902 | team_port_disable_netpoll(port); |
| 1903 | } |
| 1904 | |
| 1905 | static void team_netpoll_cleanup(struct net_device *dev) |
| 1906 | { |
| 1907 | struct team *team = netdev_priv(dev); |
| 1908 | |
| 1909 | mutex_lock(&team->lock); |
| 1910 | __team_netpoll_cleanup(team); |
| 1911 | mutex_unlock(&team->lock); |
| 1912 | } |
| 1913 | |
| 1914 | static int team_netpoll_setup(struct net_device *dev, |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 1915 | struct netpoll_info *npifo) |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1916 | { |
| 1917 | struct team *team = netdev_priv(dev); |
| 1918 | struct team_port *port; |
Jiri Pirko | 3324d02 | 2012-07-24 01:20:48 +0000 | [diff] [blame] | 1919 | int err = 0; |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1920 | |
| 1921 | mutex_lock(&team->lock); |
| 1922 | list_for_each_entry(port, &team->port_list, list) { |
Eric W. Biederman | a8779ec | 2014-03-27 15:36:38 -0700 | [diff] [blame] | 1923 | err = team_port_enable_netpoll(team, port); |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 1924 | if (err) { |
| 1925 | __team_netpoll_cleanup(team); |
| 1926 | break; |
| 1927 | } |
| 1928 | } |
| 1929 | mutex_unlock(&team->lock); |
| 1930 | return err; |
| 1931 | } |
| 1932 | #endif |
| 1933 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1934 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev) |
| 1935 | { |
| 1936 | struct team *team = netdev_priv(dev); |
| 1937 | int err; |
| 1938 | |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1939 | mutex_lock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1940 | err = team_port_add(team, port_dev); |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1941 | mutex_unlock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1942 | return err; |
| 1943 | } |
| 1944 | |
| 1945 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) |
| 1946 | { |
| 1947 | struct team *team = netdev_priv(dev); |
| 1948 | int err; |
| 1949 | |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1950 | mutex_lock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1951 | err = team_port_del(team, port_dev); |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 1952 | mutex_unlock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1953 | return err; |
| 1954 | } |
| 1955 | |
Jiri Pirko | 234a8fd | 2011-11-17 04:16:04 +0000 | [diff] [blame] | 1956 | static netdev_features_t team_fix_features(struct net_device *dev, |
| 1957 | netdev_features_t features) |
| 1958 | { |
| 1959 | struct team_port *port; |
| 1960 | struct team *team = netdev_priv(dev); |
| 1961 | netdev_features_t mask; |
| 1962 | |
Scott Feldman | 7889cbe | 2015-05-10 09:48:07 -0700 | [diff] [blame] | 1963 | mask = features; |
Jiri Pirko | 234a8fd | 2011-11-17 04:16:04 +0000 | [diff] [blame] | 1964 | features &= ~NETIF_F_ONE_FOR_ALL; |
| 1965 | features |= NETIF_F_ALL_FOR_ALL; |
| 1966 | |
| 1967 | rcu_read_lock(); |
| 1968 | list_for_each_entry_rcu(port, &team->port_list, list) { |
| 1969 | features = netdev_increment_features(features, |
| 1970 | port->dev->features, |
| 1971 | mask); |
| 1972 | } |
| 1973 | rcu_read_unlock(); |
Jiri Pirko | 247f6d0 | 2015-02-25 19:52:11 +0100 | [diff] [blame] | 1974 | |
| 1975 | features = netdev_add_tso_features(features, mask); |
| 1976 | |
Jiri Pirko | 234a8fd | 2011-11-17 04:16:04 +0000 | [diff] [blame] | 1977 | return features; |
| 1978 | } |
| 1979 | |
Flavio Leitner | 4cafe37 | 2012-12-29 15:31:01 +0000 | [diff] [blame] | 1980 | static int team_change_carrier(struct net_device *dev, bool new_carrier) |
| 1981 | { |
Flavio Leitner | e185483 | 2013-02-05 09:30:55 +0000 | [diff] [blame] | 1982 | struct team *team = netdev_priv(dev); |
| 1983 | |
| 1984 | team->user_carrier_enabled = true; |
| 1985 | |
Flavio Leitner | 4cafe37 | 2012-12-29 15:31:01 +0000 | [diff] [blame] | 1986 | if (new_carrier) |
| 1987 | netif_carrier_on(dev); |
| 1988 | else |
| 1989 | netif_carrier_off(dev); |
| 1990 | return 0; |
| 1991 | } |
| 1992 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 1993 | static const struct net_device_ops team_netdev_ops = { |
| 1994 | .ndo_init = team_init, |
| 1995 | .ndo_uninit = team_uninit, |
| 1996 | .ndo_open = team_open, |
| 1997 | .ndo_stop = team_close, |
| 1998 | .ndo_start_xmit = team_xmit, |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 1999 | .ndo_select_queue = team_select_queue, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2000 | .ndo_change_rx_flags = team_change_rx_flags, |
| 2001 | .ndo_set_rx_mode = team_set_rx_mode, |
| 2002 | .ndo_set_mac_address = team_set_mac_address, |
| 2003 | .ndo_change_mtu = team_change_mtu, |
| 2004 | .ndo_get_stats64 = team_get_stats64, |
| 2005 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, |
| 2006 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, |
Jiri Pirko | bd2d083 | 2012-07-17 05:22:36 +0000 | [diff] [blame] | 2007 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 2008 | .ndo_poll_controller = team_poll_controller, |
| 2009 | .ndo_netpoll_setup = team_netpoll_setup, |
| 2010 | .ndo_netpoll_cleanup = team_netpoll_cleanup, |
| 2011 | #endif |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2012 | .ndo_add_slave = team_add_slave, |
| 2013 | .ndo_del_slave = team_del_slave, |
Jiri Pirko | 234a8fd | 2011-11-17 04:16:04 +0000 | [diff] [blame] | 2014 | .ndo_fix_features = team_fix_features, |
Flavio Leitner | 4cafe37 | 2012-12-29 15:31:01 +0000 | [diff] [blame] | 2015 | .ndo_change_carrier = team_change_carrier, |
Scott Feldman | fc8f40d | 2015-05-10 09:47:57 -0700 | [diff] [blame] | 2016 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, |
Scott Feldman | 85fdb95 | 2015-05-10 09:48:05 -0700 | [diff] [blame] | 2017 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
Scott Feldman | 54ba5a0 | 2015-05-10 09:48:01 -0700 | [diff] [blame] | 2018 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, |
Samudrala, Sridhar | 45d4122 | 2015-05-13 21:55:43 -0700 | [diff] [blame] | 2019 | .ndo_fdb_add = switchdev_port_fdb_add, |
| 2020 | .ndo_fdb_del = switchdev_port_fdb_del, |
| 2021 | .ndo_fdb_dump = switchdev_port_fdb_dump, |
Toshiaki Makita | b9f4cf75 | 2015-03-27 14:31:15 +0900 | [diff] [blame] | 2022 | .ndo_features_check = passthru_features_check, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2023 | }; |
| 2024 | |
Flavio Leitner | 7f51c58 | 2012-12-29 16:37:33 +0000 | [diff] [blame] | 2025 | /*********************** |
| 2026 | * ethtool interface |
| 2027 | ***********************/ |
| 2028 | |
| 2029 | static void team_ethtool_get_drvinfo(struct net_device *dev, |
| 2030 | struct ethtool_drvinfo *drvinfo) |
| 2031 | { |
Flavio Leitner | 3066af5 | 2013-01-05 02:53:10 +0000 | [diff] [blame] | 2032 | strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
| 2033 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); |
Flavio Leitner | 7f51c58 | 2012-12-29 16:37:33 +0000 | [diff] [blame] | 2034 | } |
| 2035 | |
| 2036 | static const struct ethtool_ops team_ethtool_ops = { |
| 2037 | .get_drvinfo = team_ethtool_get_drvinfo, |
| 2038 | .get_link = ethtool_op_get_link, |
| 2039 | }; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2040 | |
| 2041 | /*********************** |
| 2042 | * rt netlink interface |
| 2043 | ***********************/ |
| 2044 | |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 2045 | static void team_setup_by_port(struct net_device *dev, |
| 2046 | struct net_device *port_dev) |
| 2047 | { |
| 2048 | dev->header_ops = port_dev->header_ops; |
| 2049 | dev->type = port_dev->type; |
| 2050 | dev->hard_header_len = port_dev->hard_header_len; |
| 2051 | dev->addr_len = port_dev->addr_len; |
| 2052 | dev->mtu = port_dev->mtu; |
| 2053 | memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); |
Bjørn Mork | 93af735 | 2013-08-30 18:08:48 +0200 | [diff] [blame] | 2054 | eth_hw_addr_inherit(dev, port_dev); |
Jiri Pirko | 1d76efe | 2012-08-17 04:00:48 +0000 | [diff] [blame] | 2055 | } |
| 2056 | |
| 2057 | static int team_dev_type_check_change(struct net_device *dev, |
| 2058 | struct net_device *port_dev) |
| 2059 | { |
| 2060 | struct team *team = netdev_priv(dev); |
| 2061 | char *portname = port_dev->name; |
| 2062 | int err; |
| 2063 | |
| 2064 | if (dev->type == port_dev->type) |
| 2065 | return 0; |
| 2066 | if (!list_empty(&team->port_list)) { |
| 2067 | netdev_err(dev, "Device %s is of different type\n", portname); |
| 2068 | return -EBUSY; |
| 2069 | } |
| 2070 | err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); |
| 2071 | err = notifier_to_errno(err); |
| 2072 | if (err) { |
| 2073 | netdev_err(dev, "Refused to change device type\n"); |
| 2074 | return err; |
| 2075 | } |
| 2076 | dev_uc_flush(dev); |
| 2077 | dev_mc_flush(dev); |
| 2078 | team_setup_by_port(dev, port_dev); |
| 2079 | call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); |
| 2080 | return 0; |
| 2081 | } |
| 2082 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2083 | static void team_setup(struct net_device *dev) |
| 2084 | { |
| 2085 | ether_setup(dev); |
| 2086 | |
| 2087 | dev->netdev_ops = &team_netdev_ops; |
Flavio Leitner | 7f51c58 | 2012-12-29 16:37:33 +0000 | [diff] [blame] | 2088 | dev->ethtool_ops = &team_ethtool_ops; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2089 | dev->destructor = team_destructor; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2090 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); |
Phil Sutter | 22e380a | 2015-08-18 10:30:34 +0200 | [diff] [blame] | 2091 | dev->priv_flags |= IFF_NO_QUEUE; |
Jiri Pirko | c981e42 | 2015-12-03 12:12:06 +0100 | [diff] [blame] | 2092 | dev->priv_flags |= IFF_TEAM; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2093 | |
| 2094 | /* |
| 2095 | * Indicate we support unicast address filtering. That way core won't |
| 2096 | * bring us to promisc mode in case a unicast addr is added. |
| 2097 | * Let this up to underlay drivers. |
| 2098 | */ |
Jiri Pirko | 5a1d1c8 | 2012-06-29 05:10:07 +0000 | [diff] [blame] | 2099 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2100 | |
| 2101 | dev->features |= NETIF_F_LLTX; |
| 2102 | dev->features |= NETIF_F_GRO; |
Weilong Chen | 99301ba | 2014-01-23 11:07:22 +0800 | [diff] [blame] | 2103 | |
| 2104 | /* Don't allow team devices to change network namespaces. */ |
| 2105 | dev->features |= NETIF_F_NETNS_LOCAL; |
| 2106 | |
Jiri Pirko | 3ed7147 | 2012-11-28 06:13:10 +0000 | [diff] [blame] | 2107 | dev->hw_features = TEAM_VLAN_FEATURES | |
Patrick McHardy | f646968 | 2013-04-19 02:04:27 +0000 | [diff] [blame] | 2108 | NETIF_F_HW_VLAN_CTAG_TX | |
| 2109 | NETIF_F_HW_VLAN_CTAG_RX | |
| 2110 | NETIF_F_HW_VLAN_CTAG_FILTER; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2111 | |
Eran Ben Elisha | 3268e5c | 2015-12-17 16:11:55 +0200 | [diff] [blame] | 2112 | dev->hw_features |= NETIF_F_GSO_ENCAP_ALL; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2113 | dev->features |= dev->hw_features; |
| 2114 | } |
| 2115 | |
| 2116 | static int team_newlink(struct net *src_net, struct net_device *dev, |
| 2117 | struct nlattr *tb[], struct nlattr *data[]) |
| 2118 | { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2119 | if (tb[IFLA_ADDRESS] == NULL) |
Danny Kukawka | 7ce5d22 | 2012-02-15 06:45:40 +0000 | [diff] [blame] | 2120 | eth_hw_addr_random(dev); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2121 | |
Toshiaki Makita | ff204cc | 2014-08-05 15:58:50 +0900 | [diff] [blame] | 2122 | return register_netdevice(dev); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2123 | } |
| 2124 | |
| 2125 | static int team_validate(struct nlattr *tb[], struct nlattr *data[]) |
| 2126 | { |
| 2127 | if (tb[IFLA_ADDRESS]) { |
| 2128 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) |
| 2129 | return -EINVAL; |
| 2130 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) |
| 2131 | return -EADDRNOTAVAIL; |
| 2132 | } |
| 2133 | return 0; |
| 2134 | } |
| 2135 | |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 2136 | static unsigned int team_get_num_tx_queues(void) |
| 2137 | { |
| 2138 | return TEAM_DEFAULT_NUM_TX_QUEUES; |
| 2139 | } |
| 2140 | |
| 2141 | static unsigned int team_get_num_rx_queues(void) |
| 2142 | { |
| 2143 | return TEAM_DEFAULT_NUM_RX_QUEUES; |
| 2144 | } |
| 2145 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2146 | static struct rtnl_link_ops team_link_ops __read_mostly = { |
Jiri Pirko | 6c85f2b | 2012-07-20 02:28:51 +0000 | [diff] [blame] | 2147 | .kind = DRV_NAME, |
| 2148 | .priv_size = sizeof(struct team), |
| 2149 | .setup = team_setup, |
| 2150 | .newlink = team_newlink, |
| 2151 | .validate = team_validate, |
| 2152 | .get_num_tx_queues = team_get_num_tx_queues, |
| 2153 | .get_num_rx_queues = team_get_num_rx_queues, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2154 | }; |
| 2155 | |
| 2156 | |
| 2157 | /*********************************** |
| 2158 | * Generic netlink custom interface |
| 2159 | ***********************************/ |
| 2160 | |
| 2161 | static struct genl_family team_nl_family = { |
| 2162 | .id = GENL_ID_GENERATE, |
| 2163 | .name = TEAM_GENL_NAME, |
| 2164 | .version = TEAM_GENL_VERSION, |
| 2165 | .maxattr = TEAM_ATTR_MAX, |
| 2166 | .netnsok = true, |
| 2167 | }; |
| 2168 | |
| 2169 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { |
| 2170 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, |
| 2171 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, |
| 2172 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, |
| 2173 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, |
| 2174 | }; |
| 2175 | |
| 2176 | static const struct nla_policy |
| 2177 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { |
| 2178 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, |
| 2179 | [TEAM_ATTR_OPTION_NAME] = { |
| 2180 | .type = NLA_STRING, |
| 2181 | .len = TEAM_STRING_MAX_LEN, |
| 2182 | }, |
| 2183 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, |
| 2184 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, |
Jiri Pirko | 2615598 | 2012-04-04 12:16:26 +0000 | [diff] [blame] | 2185 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2186 | }; |
| 2187 | |
| 2188 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) |
| 2189 | { |
| 2190 | struct sk_buff *msg; |
| 2191 | void *hdr; |
| 2192 | int err; |
| 2193 | |
Thomas Graf | 58050fc | 2012-06-28 03:57:45 +0000 | [diff] [blame] | 2194 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2195 | if (!msg) |
| 2196 | return -ENOMEM; |
| 2197 | |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2198 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2199 | &team_nl_family, 0, TEAM_CMD_NOOP); |
Wei Yongjun | a326e6d | 2012-09-24 18:29:35 +0000 | [diff] [blame] | 2200 | if (!hdr) { |
| 2201 | err = -EMSGSIZE; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2202 | goto err_msg_put; |
| 2203 | } |
| 2204 | |
| 2205 | genlmsg_end(msg, hdr); |
| 2206 | |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2207 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2208 | |
| 2209 | err_msg_put: |
| 2210 | nlmsg_free(msg); |
| 2211 | |
| 2212 | return err; |
| 2213 | } |
| 2214 | |
| 2215 | /* |
| 2216 | * Netlink cmd functions should be locked by following two functions. |
Jiri Pirko | 8c0713a | 2011-11-16 11:55:54 +0000 | [diff] [blame] | 2217 | * Since dev gets held here, that ensures dev won't disappear in between. |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2218 | */ |
| 2219 | static struct team *team_nl_team_get(struct genl_info *info) |
| 2220 | { |
| 2221 | struct net *net = genl_info_net(info); |
| 2222 | int ifindex; |
| 2223 | struct net_device *dev; |
| 2224 | struct team *team; |
| 2225 | |
| 2226 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) |
| 2227 | return NULL; |
| 2228 | |
| 2229 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); |
Jiri Pirko | 8c0713a | 2011-11-16 11:55:54 +0000 | [diff] [blame] | 2230 | dev = dev_get_by_index(net, ifindex); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2231 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
Jiri Pirko | 8c0713a | 2011-11-16 11:55:54 +0000 | [diff] [blame] | 2232 | if (dev) |
| 2233 | dev_put(dev); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2234 | return NULL; |
| 2235 | } |
| 2236 | |
| 2237 | team = netdev_priv(dev); |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 2238 | mutex_lock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2239 | return team; |
| 2240 | } |
| 2241 | |
| 2242 | static void team_nl_team_put(struct team *team) |
| 2243 | { |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 2244 | mutex_unlock(&team->lock); |
Jiri Pirko | 8c0713a | 2011-11-16 11:55:54 +0000 | [diff] [blame] | 2245 | dev_put(team->dev); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2246 | } |
| 2247 | |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2248 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2249 | struct team *team, u32 portid); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2250 | |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2251 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2252 | { |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2253 | return genlmsg_unicast(dev_net(team->dev), skb, portid); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2254 | } |
| 2255 | |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2256 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
| 2257 | struct team_option_inst *opt_inst) |
| 2258 | { |
| 2259 | struct nlattr *option_item; |
| 2260 | struct team_option *option = opt_inst->option; |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2261 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2262 | struct team_gsetter_ctx ctx; |
| 2263 | int err; |
| 2264 | |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2265 | ctx.info = opt_inst_info; |
| 2266 | err = team_option_get(team, opt_inst, &ctx); |
| 2267 | if (err) |
| 2268 | return err; |
| 2269 | |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2270 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
| 2271 | if (!option_item) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2272 | return -EMSGSIZE; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2273 | |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2274 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
| 2275 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2276 | if (opt_inst_info->port && |
| 2277 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, |
| 2278 | opt_inst_info->port->dev->ifindex)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2279 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2280 | if (opt_inst->option->array_size && |
| 2281 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, |
| 2282 | opt_inst_info->array_index)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2283 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2284 | |
| 2285 | switch (option->type) { |
| 2286 | case TEAM_OPTION_TYPE_U32: |
| 2287 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2288 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2289 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2290 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2291 | break; |
| 2292 | case TEAM_OPTION_TYPE_STRING: |
| 2293 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2294 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2295 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
| 2296 | ctx.data.str_val)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2297 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2298 | break; |
| 2299 | case TEAM_OPTION_TYPE_BINARY: |
| 2300 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2301 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2302 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
| 2303 | ctx.data.bin_val.ptr)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2304 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2305 | break; |
| 2306 | case TEAM_OPTION_TYPE_BOOL: |
| 2307 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2308 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2309 | if (ctx.data.bool_val && |
| 2310 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2311 | goto nest_cancel; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2312 | break; |
Jiri Pirko | 6982163 | 2012-07-27 06:28:53 +0000 | [diff] [blame] | 2313 | case TEAM_OPTION_TYPE_S32: |
| 2314 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) |
| 2315 | goto nest_cancel; |
| 2316 | if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) |
| 2317 | goto nest_cancel; |
| 2318 | break; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2319 | default: |
| 2320 | BUG(); |
| 2321 | } |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2322 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
| 2323 | goto nest_cancel; |
| 2324 | if (opt_inst->changed) { |
| 2325 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) |
| 2326 | goto nest_cancel; |
| 2327 | opt_inst->changed = false; |
| 2328 | } |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2329 | nla_nest_end(skb, option_item); |
| 2330 | return 0; |
| 2331 | |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2332 | nest_cancel: |
| 2333 | nla_nest_cancel(skb, option_item); |
| 2334 | return -EMSGSIZE; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2335 | } |
| 2336 | |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2337 | static int __send_and_alloc_skb(struct sk_buff **pskb, |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2338 | struct team *team, u32 portid, |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2339 | team_nl_send_func_t *send_func) |
| 2340 | { |
| 2341 | int err; |
| 2342 | |
| 2343 | if (*pskb) { |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2344 | err = send_func(*pskb, team, portid); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2345 | if (err) |
| 2346 | return err; |
| 2347 | } |
Thomas Graf | 58050fc | 2012-06-28 03:57:45 +0000 | [diff] [blame] | 2348 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2349 | if (!*pskb) |
| 2350 | return -ENOMEM; |
| 2351 | return 0; |
| 2352 | } |
| 2353 | |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2354 | static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2355 | int flags, team_nl_send_func_t *send_func, |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2356 | struct list_head *sel_opt_inst_list) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2357 | { |
| 2358 | struct nlattr *option_list; |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2359 | struct nlmsghdr *nlh; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2360 | void *hdr; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2361 | struct team_option_inst *opt_inst; |
| 2362 | int err; |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2363 | struct sk_buff *skb = NULL; |
| 2364 | bool incomplete; |
| 2365 | int i; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2366 | |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2367 | opt_inst = list_first_entry(sel_opt_inst_list, |
| 2368 | struct team_option_inst, tmp_list); |
| 2369 | |
| 2370 | start_again: |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2371 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2372 | if (err) |
| 2373 | return err; |
| 2374 | |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2375 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2376 | TEAM_CMD_OPTIONS_GET); |
Wei Yongjun | a326e6d | 2012-09-24 18:29:35 +0000 | [diff] [blame] | 2377 | if (!hdr) |
| 2378 | return -EMSGSIZE; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2379 | |
David S. Miller | 86ebb02 | 2012-04-01 20:25:18 -0400 | [diff] [blame] | 2380 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
| 2381 | goto nla_put_failure; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2382 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
| 2383 | if (!option_list) |
Jiri Pirko | 75db986 | 2012-06-19 05:54:12 +0000 | [diff] [blame] | 2384 | goto nla_put_failure; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2385 | |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2386 | i = 0; |
| 2387 | incomplete = false; |
| 2388 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2389 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2390 | if (err) { |
| 2391 | if (err == -EMSGSIZE) { |
| 2392 | if (!i) |
| 2393 | goto errout; |
| 2394 | incomplete = true; |
| 2395 | break; |
| 2396 | } |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2397 | goto errout; |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2398 | } |
| 2399 | i++; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2400 | } |
| 2401 | |
| 2402 | nla_nest_end(skb, option_list); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2403 | genlmsg_end(skb, hdr); |
| 2404 | if (incomplete) |
| 2405 | goto start_again; |
| 2406 | |
| 2407 | send_done: |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2408 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2409 | if (!nlh) { |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2410 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2411 | if (err) |
| 2412 | goto errout; |
| 2413 | goto send_done; |
| 2414 | } |
| 2415 | |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2416 | return send_func(skb, team, portid); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2417 | |
| 2418 | nla_put_failure: |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2419 | err = -EMSGSIZE; |
| 2420 | errout: |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2421 | genlmsg_cancel(skb, hdr); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2422 | nlmsg_free(skb); |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2423 | return err; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2424 | } |
| 2425 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2426 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
| 2427 | { |
| 2428 | struct team *team; |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2429 | struct team_option_inst *opt_inst; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2430 | int err; |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2431 | LIST_HEAD(sel_opt_inst_list); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2432 | |
| 2433 | team = team_nl_team_get(info); |
| 2434 | if (!team) |
| 2435 | return -EINVAL; |
| 2436 | |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2437 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
| 2438 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2439 | err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2440 | NLM_F_ACK, team_nl_send_unicast, |
| 2441 | &sel_opt_inst_list); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2442 | |
| 2443 | team_nl_team_put(team); |
| 2444 | |
| 2445 | return err; |
| 2446 | } |
| 2447 | |
Jiri Pirko | 2fcdb2c | 2012-06-19 05:54:20 +0000 | [diff] [blame] | 2448 | static int team_nl_send_event_options_get(struct team *team, |
| 2449 | struct list_head *sel_opt_inst_list); |
| 2450 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2451 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
| 2452 | { |
| 2453 | struct team *team; |
| 2454 | int err = 0; |
| 2455 | int i; |
| 2456 | struct nlattr *nl_option; |
Jiri Pirko | 2fcdb2c | 2012-06-19 05:54:20 +0000 | [diff] [blame] | 2457 | LIST_HEAD(opt_inst_list); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2458 | |
Jiri Pirko | 7d25950 | 2015-12-03 12:12:17 +0100 | [diff] [blame] | 2459 | rtnl_lock(); |
| 2460 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2461 | team = team_nl_team_get(info); |
Jiri Pirko | 7d25950 | 2015-12-03 12:12:17 +0100 | [diff] [blame] | 2462 | if (!team) { |
| 2463 | err = -EINVAL; |
| 2464 | goto rtnl_unlock; |
| 2465 | } |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2466 | |
| 2467 | err = -EINVAL; |
| 2468 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { |
| 2469 | err = -EINVAL; |
| 2470 | goto team_put; |
| 2471 | } |
| 2472 | |
| 2473 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2474 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 2475 | struct nlattr *attr; |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 2476 | struct nlattr *attr_data; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2477 | enum team_option_type opt_type; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2478 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 2479 | u32 opt_array_index = 0; |
| 2480 | bool opt_is_array = false; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2481 | struct team_option_inst *opt_inst; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2482 | char *opt_name; |
| 2483 | bool opt_found = false; |
| 2484 | |
| 2485 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { |
| 2486 | err = -EINVAL; |
| 2487 | goto team_put; |
| 2488 | } |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2489 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2490 | nl_option, team_nl_option_policy); |
| 2491 | if (err) |
| 2492 | goto team_put; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2493 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 2494 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2495 | err = -EINVAL; |
| 2496 | goto team_put; |
| 2497 | } |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2498 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2499 | case NLA_U32: |
| 2500 | opt_type = TEAM_OPTION_TYPE_U32; |
| 2501 | break; |
| 2502 | case NLA_STRING: |
| 2503 | opt_type = TEAM_OPTION_TYPE_STRING; |
| 2504 | break; |
Jiri Pirko | 2615598 | 2012-04-04 12:16:26 +0000 | [diff] [blame] | 2505 | case NLA_BINARY: |
| 2506 | opt_type = TEAM_OPTION_TYPE_BINARY; |
| 2507 | break; |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 2508 | case NLA_FLAG: |
| 2509 | opt_type = TEAM_OPTION_TYPE_BOOL; |
| 2510 | break; |
Jiri Pirko | 6982163 | 2012-07-27 06:28:53 +0000 | [diff] [blame] | 2511 | case NLA_S32: |
| 2512 | opt_type = TEAM_OPTION_TYPE_S32; |
| 2513 | break; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2514 | default: |
| 2515 | goto team_put; |
| 2516 | } |
| 2517 | |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 2518 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
| 2519 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { |
| 2520 | err = -EINVAL; |
| 2521 | goto team_put; |
| 2522 | } |
| 2523 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2524 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 2525 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
| 2526 | if (attr) |
| 2527 | opt_port_ifindex = nla_get_u32(attr); |
| 2528 | |
| 2529 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; |
| 2530 | if (attr) { |
| 2531 | opt_is_array = true; |
| 2532 | opt_array_index = nla_get_u32(attr); |
| 2533 | } |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2534 | |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2535 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
| 2536 | struct team_option *option = opt_inst->option; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2537 | struct team_gsetter_ctx ctx; |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 2538 | struct team_option_inst_info *opt_inst_info; |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2539 | int tmp_ifindex; |
| 2540 | |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 2541 | opt_inst_info = &opt_inst->info; |
| 2542 | tmp_ifindex = opt_inst_info->port ? |
| 2543 | opt_inst_info->port->dev->ifindex : 0; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2544 | if (option->type != opt_type || |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2545 | strcmp(option->name, opt_name) || |
Jiri Pirko | b130332 | 2012-06-19 05:54:08 +0000 | [diff] [blame] | 2546 | tmp_ifindex != opt_port_ifindex || |
| 2547 | (option->array_size && !opt_is_array) || |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 2548 | opt_inst_info->array_index != opt_array_index) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2549 | continue; |
| 2550 | opt_found = true; |
Jiri Pirko | 85d59a8 | 2012-06-19 05:54:10 +0000 | [diff] [blame] | 2551 | ctx.info = opt_inst_info; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2552 | switch (opt_type) { |
| 2553 | case TEAM_OPTION_TYPE_U32: |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 2554 | ctx.data.u32_val = nla_get_u32(attr_data); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2555 | break; |
| 2556 | case TEAM_OPTION_TYPE_STRING: |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 2557 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
Jiri Pirko | 2615598 | 2012-04-04 12:16:26 +0000 | [diff] [blame] | 2558 | err = -EINVAL; |
| 2559 | goto team_put; |
| 2560 | } |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 2561 | ctx.data.str_val = nla_data(attr_data); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2562 | break; |
Jiri Pirko | 2615598 | 2012-04-04 12:16:26 +0000 | [diff] [blame] | 2563 | case TEAM_OPTION_TYPE_BINARY: |
Jiri Pirko | 14f066b | 2012-04-10 05:15:43 +0000 | [diff] [blame] | 2564 | ctx.data.bin_val.len = nla_len(attr_data); |
| 2565 | ctx.data.bin_val.ptr = nla_data(attr_data); |
| 2566 | break; |
| 2567 | case TEAM_OPTION_TYPE_BOOL: |
| 2568 | ctx.data.bool_val = attr_data ? true : false; |
Jiri Pirko | 2615598 | 2012-04-04 12:16:26 +0000 | [diff] [blame] | 2569 | break; |
Jiri Pirko | 6982163 | 2012-07-27 06:28:53 +0000 | [diff] [blame] | 2570 | case TEAM_OPTION_TYPE_S32: |
| 2571 | ctx.data.s32_val = nla_get_s32(attr_data); |
| 2572 | break; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2573 | default: |
| 2574 | BUG(); |
| 2575 | } |
Jiri Pirko | 80f7c66 | 2012-04-10 05:15:42 +0000 | [diff] [blame] | 2576 | err = team_option_set(team, opt_inst, &ctx); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2577 | if (err) |
| 2578 | goto team_put; |
Jiri Pirko | 2fcdb2c | 2012-06-19 05:54:20 +0000 | [diff] [blame] | 2579 | opt_inst->changed = true; |
| 2580 | list_add(&opt_inst->tmp_list, &opt_inst_list); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2581 | } |
| 2582 | if (!opt_found) { |
| 2583 | err = -ENOENT; |
| 2584 | goto team_put; |
| 2585 | } |
| 2586 | } |
| 2587 | |
Jiri Pirko | 2fcdb2c | 2012-06-19 05:54:20 +0000 | [diff] [blame] | 2588 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
| 2589 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2590 | team_put: |
| 2591 | team_nl_team_put(team); |
Jiri Pirko | 7d25950 | 2015-12-03 12:12:17 +0100 | [diff] [blame] | 2592 | rtnl_unlock: |
| 2593 | rtnl_unlock(); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2594 | return err; |
| 2595 | } |
| 2596 | |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2597 | static int team_nl_fill_one_port_get(struct sk_buff *skb, |
| 2598 | struct team_port *port) |
| 2599 | { |
| 2600 | struct nlattr *port_item; |
| 2601 | |
| 2602 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); |
| 2603 | if (!port_item) |
| 2604 | goto nest_cancel; |
| 2605 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) |
| 2606 | goto nest_cancel; |
| 2607 | if (port->changed) { |
| 2608 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) |
| 2609 | goto nest_cancel; |
| 2610 | port->changed = false; |
| 2611 | } |
| 2612 | if ((port->removed && |
| 2613 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || |
| 2614 | (port->state.linkup && |
| 2615 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || |
| 2616 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || |
| 2617 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) |
| 2618 | goto nest_cancel; |
| 2619 | nla_nest_end(skb, port_item); |
| 2620 | return 0; |
| 2621 | |
| 2622 | nest_cancel: |
| 2623 | nla_nest_cancel(skb, port_item); |
| 2624 | return -EMSGSIZE; |
| 2625 | } |
| 2626 | |
| 2627 | static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, |
| 2628 | int flags, team_nl_send_func_t *send_func, |
| 2629 | struct team_port *one_port) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2630 | { |
| 2631 | struct nlattr *port_list; |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2632 | struct nlmsghdr *nlh; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2633 | void *hdr; |
| 2634 | struct team_port *port; |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2635 | int err; |
| 2636 | struct sk_buff *skb = NULL; |
| 2637 | bool incomplete; |
| 2638 | int i; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2639 | |
Jiri Pirko | 3f3e7ce | 2013-05-29 05:02:57 +0000 | [diff] [blame] | 2640 | port = list_first_entry_or_null(&team->port_list, |
| 2641 | struct team_port, list); |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2642 | |
| 2643 | start_again: |
| 2644 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
| 2645 | if (err) |
| 2646 | return err; |
| 2647 | |
| 2648 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2649 | TEAM_CMD_PORT_LIST_GET); |
Wei Yongjun | a326e6d | 2012-09-24 18:29:35 +0000 | [diff] [blame] | 2650 | if (!hdr) |
| 2651 | return -EMSGSIZE; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2652 | |
David S. Miller | 86ebb02 | 2012-04-01 20:25:18 -0400 | [diff] [blame] | 2653 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
| 2654 | goto nla_put_failure; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2655 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
| 2656 | if (!port_list) |
Jiri Pirko | 3221c64 | 2012-06-19 05:54:13 +0000 | [diff] [blame] | 2657 | goto nla_put_failure; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2658 | |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2659 | i = 0; |
| 2660 | incomplete = false; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2661 | |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2662 | /* If one port is selected, called wants to send port list containing |
| 2663 | * only this port. Otherwise go through all listed ports and send all |
| 2664 | */ |
| 2665 | if (one_port) { |
| 2666 | err = team_nl_fill_one_port_get(skb, one_port); |
| 2667 | if (err) |
| 2668 | goto errout; |
Jiri Pirko | 3f3e7ce | 2013-05-29 05:02:57 +0000 | [diff] [blame] | 2669 | } else if (port) { |
| 2670 | list_for_each_entry_from(port, &team->port_list, list) { |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2671 | err = team_nl_fill_one_port_get(skb, port); |
| 2672 | if (err) { |
| 2673 | if (err == -EMSGSIZE) { |
| 2674 | if (!i) |
| 2675 | goto errout; |
| 2676 | incomplete = true; |
| 2677 | break; |
| 2678 | } |
| 2679 | goto errout; |
| 2680 | } |
| 2681 | i++; |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 2682 | } |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2683 | } |
| 2684 | |
| 2685 | nla_nest_end(skb, port_list); |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2686 | genlmsg_end(skb, hdr); |
| 2687 | if (incomplete) |
| 2688 | goto start_again; |
| 2689 | |
| 2690 | send_done: |
| 2691 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
| 2692 | if (!nlh) { |
| 2693 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
| 2694 | if (err) |
| 2695 | goto errout; |
| 2696 | goto send_done; |
| 2697 | } |
| 2698 | |
| 2699 | return send_func(skb, team, portid); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2700 | |
| 2701 | nla_put_failure: |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2702 | err = -EMSGSIZE; |
| 2703 | errout: |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2704 | genlmsg_cancel(skb, hdr); |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2705 | nlmsg_free(skb); |
| 2706 | return err; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2707 | } |
| 2708 | |
| 2709 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, |
| 2710 | struct genl_info *info) |
| 2711 | { |
| 2712 | struct team *team; |
| 2713 | int err; |
| 2714 | |
| 2715 | team = team_nl_team_get(info); |
| 2716 | if (!team) |
| 2717 | return -EINVAL; |
| 2718 | |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2719 | err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, |
| 2720 | NLM_F_ACK, team_nl_send_unicast, NULL); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2721 | |
| 2722 | team_nl_team_put(team); |
| 2723 | |
| 2724 | return err; |
| 2725 | } |
| 2726 | |
Johannes Berg | 4534de8 | 2013-11-14 17:14:46 +0100 | [diff] [blame] | 2727 | static const struct genl_ops team_nl_ops[] = { |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2728 | { |
| 2729 | .cmd = TEAM_CMD_NOOP, |
| 2730 | .doit = team_nl_cmd_noop, |
| 2731 | .policy = team_nl_policy, |
| 2732 | }, |
| 2733 | { |
| 2734 | .cmd = TEAM_CMD_OPTIONS_SET, |
| 2735 | .doit = team_nl_cmd_options_set, |
| 2736 | .policy = team_nl_policy, |
| 2737 | .flags = GENL_ADMIN_PERM, |
| 2738 | }, |
| 2739 | { |
| 2740 | .cmd = TEAM_CMD_OPTIONS_GET, |
| 2741 | .doit = team_nl_cmd_options_get, |
| 2742 | .policy = team_nl_policy, |
| 2743 | .flags = GENL_ADMIN_PERM, |
| 2744 | }, |
| 2745 | { |
| 2746 | .cmd = TEAM_CMD_PORT_LIST_GET, |
| 2747 | .doit = team_nl_cmd_port_list_get, |
| 2748 | .policy = team_nl_policy, |
| 2749 | .flags = GENL_ADMIN_PERM, |
| 2750 | }, |
| 2751 | }; |
| 2752 | |
Johannes Berg | 2a94fe4 | 2013-11-19 15:19:39 +0100 | [diff] [blame] | 2753 | static const struct genl_multicast_group team_nl_mcgrps[] = { |
| 2754 | { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2755 | }; |
| 2756 | |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2757 | static int team_nl_send_multicast(struct sk_buff *skb, |
Eric W. Biederman | 15e4730 | 2012-09-07 20:12:54 +0000 | [diff] [blame] | 2758 | struct team *team, u32 portid) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2759 | { |
Johannes Berg | 68eb550 | 2013-11-19 15:19:38 +0100 | [diff] [blame] | 2760 | return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), |
Johannes Berg | 2a94fe4 | 2013-11-19 15:19:39 +0100 | [diff] [blame] | 2761 | skb, 0, 0, GFP_KERNEL); |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2762 | } |
| 2763 | |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2764 | static int team_nl_send_event_options_get(struct team *team, |
| 2765 | struct list_head *sel_opt_inst_list) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2766 | { |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2767 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
| 2768 | sel_opt_inst_list); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2769 | } |
| 2770 | |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2771 | static int team_nl_send_event_port_get(struct team *team, |
| 2772 | struct team_port *port) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2773 | { |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2774 | return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, |
| 2775 | port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2776 | } |
| 2777 | |
| 2778 | static int team_nl_init(void) |
| 2779 | { |
Johannes Berg | 2a94fe4 | 2013-11-19 15:19:39 +0100 | [diff] [blame] | 2780 | return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops, |
| 2781 | team_nl_mcgrps); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2782 | } |
| 2783 | |
| 2784 | static void team_nl_fini(void) |
| 2785 | { |
| 2786 | genl_unregister_family(&team_nl_family); |
| 2787 | } |
| 2788 | |
| 2789 | |
| 2790 | /****************** |
| 2791 | * Change checkers |
| 2792 | ******************/ |
| 2793 | |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 2794 | static void __team_options_change_check(struct team *team) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2795 | { |
| 2796 | int err; |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2797 | struct team_option_inst *opt_inst; |
| 2798 | LIST_HEAD(sel_opt_inst_list); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2799 | |
Jiri Pirko | 01048d9 | 2012-06-19 05:54:14 +0000 | [diff] [blame] | 2800 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
| 2801 | if (opt_inst->changed) |
| 2802 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); |
| 2803 | } |
| 2804 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); |
Jiri Pirko | 0c7517e | 2012-08-23 03:26:51 +0000 | [diff] [blame] | 2805 | if (err && err != -ESRCH) |
Jiri Pirko | 9b00cf2 | 2012-06-19 05:54:18 +0000 | [diff] [blame] | 2806 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
| 2807 | err); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2808 | } |
| 2809 | |
| 2810 | /* rtnl lock is held */ |
Jiri Pirko | 10f3f51 | 2012-09-21 01:51:59 +0000 | [diff] [blame] | 2811 | |
| 2812 | static void __team_port_change_send(struct team_port *port, bool linkup) |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2813 | { |
| 2814 | int err; |
| 2815 | |
Jiri Pirko | b82b918 | 2012-01-24 05:16:00 +0000 | [diff] [blame] | 2816 | port->changed = true; |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 2817 | port->state.linkup = linkup; |
| 2818 | team_refresh_port_linkup(port); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2819 | if (linkup) { |
David Decotigny | 0ab6b54 | 2016-02-24 10:58:05 -0800 | [diff] [blame] | 2820 | struct ethtool_link_ksettings ecmd; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2821 | |
David Decotigny | 0ab6b54 | 2016-02-24 10:58:05 -0800 | [diff] [blame] | 2822 | err = __ethtool_get_link_ksettings(port->dev, &ecmd); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2823 | if (!err) { |
David Decotigny | 0ab6b54 | 2016-02-24 10:58:05 -0800 | [diff] [blame] | 2824 | port->state.speed = ecmd.base.speed; |
| 2825 | port->state.duplex = ecmd.base.duplex; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2826 | goto send_event; |
| 2827 | } |
| 2828 | } |
Jiri Pirko | 71472ec | 2012-04-10 05:15:44 +0000 | [diff] [blame] | 2829 | port->state.speed = 0; |
| 2830 | port->state.duplex = 0; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2831 | |
| 2832 | send_event: |
Jiri Pirko | d90f889 | 2013-02-01 08:17:24 +0000 | [diff] [blame] | 2833 | err = team_nl_send_event_port_get(port->team, port); |
Jiri Pirko | 0c7517e | 2012-08-23 03:26:51 +0000 | [diff] [blame] | 2834 | if (err && err != -ESRCH) |
| 2835 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", |
| 2836 | port->dev->name, err); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2837 | |
| 2838 | } |
| 2839 | |
Flavio Leitner | 06a7fc4 | 2012-12-30 08:27:29 +0000 | [diff] [blame] | 2840 | static void __team_carrier_check(struct team *team) |
| 2841 | { |
| 2842 | struct team_port *port; |
| 2843 | bool team_linkup; |
| 2844 | |
Flavio Leitner | e185483 | 2013-02-05 09:30:55 +0000 | [diff] [blame] | 2845 | if (team->user_carrier_enabled) |
| 2846 | return; |
| 2847 | |
Flavio Leitner | 06a7fc4 | 2012-12-30 08:27:29 +0000 | [diff] [blame] | 2848 | team_linkup = false; |
| 2849 | list_for_each_entry(port, &team->port_list, list) { |
| 2850 | if (port->linkup) { |
| 2851 | team_linkup = true; |
| 2852 | break; |
| 2853 | } |
| 2854 | } |
| 2855 | |
| 2856 | if (team_linkup) |
| 2857 | netif_carrier_on(team->dev); |
| 2858 | else |
| 2859 | netif_carrier_off(team->dev); |
| 2860 | } |
| 2861 | |
Jiri Pirko | 10f3f51 | 2012-09-21 01:51:59 +0000 | [diff] [blame] | 2862 | static void __team_port_change_check(struct team_port *port, bool linkup) |
| 2863 | { |
| 2864 | if (port->state.linkup != linkup) |
| 2865 | __team_port_change_send(port, linkup); |
Flavio Leitner | 06a7fc4 | 2012-12-30 08:27:29 +0000 | [diff] [blame] | 2866 | __team_carrier_check(port->team); |
Jiri Pirko | 10f3f51 | 2012-09-21 01:51:59 +0000 | [diff] [blame] | 2867 | } |
| 2868 | |
| 2869 | static void __team_port_change_port_added(struct team_port *port, bool linkup) |
| 2870 | { |
| 2871 | __team_port_change_send(port, linkup); |
Flavio Leitner | 06a7fc4 | 2012-12-30 08:27:29 +0000 | [diff] [blame] | 2872 | __team_carrier_check(port->team); |
Jiri Pirko | 10f3f51 | 2012-09-21 01:51:59 +0000 | [diff] [blame] | 2873 | } |
| 2874 | |
| 2875 | static void __team_port_change_port_removed(struct team_port *port) |
| 2876 | { |
| 2877 | port->removed = true; |
| 2878 | __team_port_change_send(port, false); |
Flavio Leitner | 06a7fc4 | 2012-12-30 08:27:29 +0000 | [diff] [blame] | 2879 | __team_carrier_check(port->team); |
Jiri Pirko | 10f3f51 | 2012-09-21 01:51:59 +0000 | [diff] [blame] | 2880 | } |
| 2881 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2882 | static void team_port_change_check(struct team_port *port, bool linkup) |
| 2883 | { |
| 2884 | struct team *team = port->team; |
| 2885 | |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 2886 | mutex_lock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2887 | __team_port_change_check(port, linkup); |
Jiri Pirko | 61dc346 | 2011-11-16 11:09:08 +0000 | [diff] [blame] | 2888 | mutex_unlock(&team->lock); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2889 | } |
| 2890 | |
Jiri Pirko | 0f1aad2 | 2012-06-19 05:54:11 +0000 | [diff] [blame] | 2891 | |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2892 | /************************************ |
| 2893 | * Net device notifier event handler |
| 2894 | ************************************/ |
| 2895 | |
| 2896 | static int team_device_event(struct notifier_block *unused, |
| 2897 | unsigned long event, void *ptr) |
| 2898 | { |
Jiri Pirko | 351638e | 2013-05-28 01:30:21 +0000 | [diff] [blame] | 2899 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2900 | struct team_port *port; |
| 2901 | |
| 2902 | port = team_port_get_rtnl(dev); |
| 2903 | if (!port) |
| 2904 | return NOTIFY_DONE; |
| 2905 | |
| 2906 | switch (event) { |
| 2907 | case NETDEV_UP: |
| 2908 | if (netif_carrier_ok(dev)) |
| 2909 | team_port_change_check(port, true); |
Jiri Pirko | ed2da03 | 2014-04-23 14:17:55 +0200 | [diff] [blame] | 2910 | break; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2911 | case NETDEV_DOWN: |
| 2912 | team_port_change_check(port, false); |
Jiri Pirko | ed2da03 | 2014-04-23 14:17:55 +0200 | [diff] [blame] | 2913 | break; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2914 | case NETDEV_CHANGE: |
| 2915 | if (netif_running(port->dev)) |
| 2916 | team_port_change_check(port, |
| 2917 | !!netif_carrier_ok(port->dev)); |
| 2918 | break; |
| 2919 | case NETDEV_UNREGISTER: |
| 2920 | team_del_slave(port->team->dev, dev); |
| 2921 | break; |
| 2922 | case NETDEV_FEAT_CHANGE: |
| 2923 | team_compute_features(port->team); |
| 2924 | break; |
Veaceslav Falico | b01f236 | 2014-01-16 00:02:19 +0100 | [diff] [blame] | 2925 | case NETDEV_PRECHANGEMTU: |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2926 | /* Forbid to change mtu of underlaying device */ |
Jiri Pirko | 9d0d68f | 2014-05-29 20:46:17 +0200 | [diff] [blame] | 2927 | if (!port->team->port_mtu_change_allowed) |
| 2928 | return NOTIFY_BAD; |
| 2929 | break; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2930 | case NETDEV_PRE_TYPE_CHANGE: |
| 2931 | /* Forbid to change type of underlaying device */ |
| 2932 | return NOTIFY_BAD; |
Jiri Pirko | 4aa5dee | 2013-07-20 12:13:53 +0200 | [diff] [blame] | 2933 | case NETDEV_RESEND_IGMP: |
| 2934 | /* Propagate to master device */ |
| 2935 | call_netdevice_notifiers(event, port->team->dev); |
| 2936 | break; |
Jiri Pirko | 3d249d4 | 2011-11-11 22:16:48 +0000 | [diff] [blame] | 2937 | } |
| 2938 | return NOTIFY_DONE; |
| 2939 | } |
| 2940 | |
| 2941 | static struct notifier_block team_notifier_block __read_mostly = { |
| 2942 | .notifier_call = team_device_event, |
| 2943 | }; |
| 2944 | |
| 2945 | |
| 2946 | /*********************** |
| 2947 | * Module init and exit |
| 2948 | ***********************/ |
| 2949 | |
| 2950 | static int __init team_module_init(void) |
| 2951 | { |
| 2952 | int err; |
| 2953 | |
| 2954 | register_netdevice_notifier(&team_notifier_block); |
| 2955 | |
| 2956 | err = rtnl_link_register(&team_link_ops); |
| 2957 | if (err) |
| 2958 | goto err_rtnl_reg; |
| 2959 | |
| 2960 | err = team_nl_init(); |
| 2961 | if (err) |
| 2962 | goto err_nl_init; |
| 2963 | |
| 2964 | return 0; |
| 2965 | |
| 2966 | err_nl_init: |
| 2967 | rtnl_link_unregister(&team_link_ops); |
| 2968 | |
| 2969 | err_rtnl_reg: |
| 2970 | unregister_netdevice_notifier(&team_notifier_block); |
| 2971 | |
| 2972 | return err; |
| 2973 | } |
| 2974 | |
| 2975 | static void __exit team_module_exit(void) |
| 2976 | { |
| 2977 | team_nl_fini(); |
| 2978 | rtnl_link_unregister(&team_link_ops); |
| 2979 | unregister_netdevice_notifier(&team_notifier_block); |
| 2980 | } |
| 2981 | |
| 2982 | module_init(team_module_init); |
| 2983 | module_exit(team_module_exit); |
| 2984 | |
| 2985 | MODULE_LICENSE("GPL v2"); |
| 2986 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); |
| 2987 | MODULE_DESCRIPTION("Ethernet team device driver"); |
| 2988 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |