Commit | Line | Data |
---|---|---|
3d249d4c | 1 | /* |
0d572e45 | 2 | * drivers/net/team/team.c - Network team device driver |
3d249d4c JP |
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> | |
87002b03 | 21 | #include <linux/if_vlan.h> |
3d249d4c JP |
22 | #include <linux/if_arp.h> |
23 | #include <linux/socket.h> | |
24 | #include <linux/etherdevice.h> | |
25 | #include <linux/rtnetlink.h> | |
26 | #include <net/rtnetlink.h> | |
27 | #include <net/genetlink.h> | |
28 | #include <net/netlink.h> | |
29 | #include <linux/if_team.h> | |
30 | ||
31 | #define DRV_NAME "team" | |
32 | ||
33 | ||
34 | /********** | |
35 | * Helpers | |
36 | **********/ | |
37 | ||
38 | #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) | |
39 | ||
40 | static struct team_port *team_port_get_rcu(const struct net_device *dev) | |
41 | { | |
42 | struct team_port *port = rcu_dereference(dev->rx_handler_data); | |
43 | ||
44 | return team_port_exists(dev) ? port : NULL; | |
45 | } | |
46 | ||
47 | static struct team_port *team_port_get_rtnl(const struct net_device *dev) | |
48 | { | |
49 | struct team_port *port = rtnl_dereference(dev->rx_handler_data); | |
50 | ||
51 | return team_port_exists(dev) ? port : NULL; | |
52 | } | |
53 | ||
54 | /* | |
55 | * Since the ability to change mac address for open port device is tested in | |
56 | * team_port_add, this function can be called without control of return value | |
57 | */ | |
58 | static int __set_port_mac(struct net_device *port_dev, | |
59 | const unsigned char *dev_addr) | |
60 | { | |
61 | struct sockaddr addr; | |
62 | ||
63 | memcpy(addr.sa_data, dev_addr, ETH_ALEN); | |
64 | addr.sa_family = ARPHRD_ETHER; | |
65 | return dev_set_mac_address(port_dev, &addr); | |
66 | } | |
67 | ||
cade4555 | 68 | static int team_port_set_orig_mac(struct team_port *port) |
3d249d4c JP |
69 | { |
70 | return __set_port_mac(port->dev, port->orig.dev_addr); | |
71 | } | |
72 | ||
73 | int team_port_set_team_mac(struct team_port *port) | |
74 | { | |
75 | return __set_port_mac(port->dev, port->team->dev->dev_addr); | |
76 | } | |
77 | EXPORT_SYMBOL(team_port_set_team_mac); | |
78 | ||
71472ec1 JP |
79 | static void team_refresh_port_linkup(struct team_port *port) |
80 | { | |
81 | port->linkup = port->user.linkup_enabled ? port->user.linkup : | |
82 | port->state.linkup; | |
83 | } | |
3d249d4c | 84 | |
0f1aad2b | 85 | |
3d249d4c JP |
86 | /******************* |
87 | * Options handling | |
88 | *******************/ | |
89 | ||
80f7c668 JP |
90 | struct team_option_inst { /* One for each option instance */ |
91 | struct list_head list; | |
01048d9a | 92 | struct list_head tmp_list; |
80f7c668 | 93 | struct team_option *option; |
85d59a87 | 94 | struct team_option_inst_info info; |
80f7c668 JP |
95 | bool changed; |
96 | bool removed; | |
97 | }; | |
98 | ||
99 | static struct team_option *__team_find_option(struct team *team, | |
100 | const char *opt_name) | |
358b8382 JP |
101 | { |
102 | struct team_option *option; | |
103 | ||
104 | list_for_each_entry(option, &team->option_list, list) { | |
105 | if (strcmp(option->name, opt_name) == 0) | |
106 | return option; | |
107 | } | |
108 | return NULL; | |
109 | } | |
110 | ||
80f7c668 JP |
111 | static void __team_option_inst_del(struct team_option_inst *opt_inst) |
112 | { | |
113 | list_del(&opt_inst->list); | |
114 | kfree(opt_inst); | |
115 | } | |
116 | ||
117 | static void __team_option_inst_del_option(struct team *team, | |
118 | struct team_option *option) | |
119 | { | |
120 | struct team_option_inst *opt_inst, *tmp; | |
121 | ||
122 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
123 | if (opt_inst->option == option) | |
124 | __team_option_inst_del(opt_inst); | |
125 | } | |
126 | } | |
127 | ||
b1303326 JP |
128 | static int __team_option_inst_add(struct team *team, struct team_option *option, |
129 | struct team_port *port) | |
130 | { | |
131 | struct team_option_inst *opt_inst; | |
132 | unsigned int array_size; | |
133 | unsigned int i; | |
85d59a87 | 134 | int err; |
b1303326 JP |
135 | |
136 | array_size = option->array_size; | |
137 | if (!array_size) | |
138 | array_size = 1; /* No array but still need one instance */ | |
139 | ||
140 | for (i = 0; i < array_size; i++) { | |
141 | opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); | |
142 | if (!opt_inst) | |
143 | return -ENOMEM; | |
144 | opt_inst->option = option; | |
85d59a87 JP |
145 | opt_inst->info.port = port; |
146 | opt_inst->info.array_index = i; | |
b1303326 JP |
147 | opt_inst->changed = true; |
148 | opt_inst->removed = false; | |
149 | list_add_tail(&opt_inst->list, &team->option_inst_list); | |
85d59a87 JP |
150 | if (option->init) { |
151 | err = option->init(team, &opt_inst->info); | |
152 | if (err) | |
153 | return err; | |
154 | } | |
155 | ||
b1303326 JP |
156 | } |
157 | return 0; | |
158 | } | |
159 | ||
80f7c668 JP |
160 | static int __team_option_inst_add_option(struct team *team, |
161 | struct team_option *option) | |
162 | { | |
163 | struct team_port *port; | |
164 | int err; | |
165 | ||
b1303326 | 166 | if (!option->per_port) { |
f88725ff | 167 | err = __team_option_inst_add(team, option, NULL); |
b1303326 JP |
168 | if (err) |
169 | goto inst_del_option; | |
170 | } | |
80f7c668 JP |
171 | |
172 | list_for_each_entry(port, &team->port_list, list) { | |
173 | err = __team_option_inst_add(team, option, port); | |
174 | if (err) | |
175 | goto inst_del_option; | |
176 | } | |
177 | return 0; | |
178 | ||
179 | inst_del_option: | |
180 | __team_option_inst_del_option(team, option); | |
181 | return err; | |
182 | } | |
183 | ||
184 | static void __team_option_inst_mark_removed_option(struct team *team, | |
185 | struct team_option *option) | |
186 | { | |
187 | struct team_option_inst *opt_inst; | |
188 | ||
189 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
190 | if (opt_inst->option == option) { | |
191 | opt_inst->changed = true; | |
192 | opt_inst->removed = true; | |
193 | } | |
194 | } | |
195 | } | |
196 | ||
197 | static void __team_option_inst_del_port(struct team *team, | |
198 | struct team_port *port) | |
199 | { | |
200 | struct team_option_inst *opt_inst, *tmp; | |
201 | ||
202 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
203 | if (opt_inst->option->per_port && | |
85d59a87 | 204 | opt_inst->info.port == port) |
80f7c668 JP |
205 | __team_option_inst_del(opt_inst); |
206 | } | |
207 | } | |
208 | ||
209 | static int __team_option_inst_add_port(struct team *team, | |
210 | struct team_port *port) | |
211 | { | |
212 | struct team_option *option; | |
213 | int err; | |
214 | ||
215 | list_for_each_entry(option, &team->option_list, list) { | |
216 | if (!option->per_port) | |
217 | continue; | |
218 | err = __team_option_inst_add(team, option, port); | |
219 | if (err) | |
220 | goto inst_del_port; | |
221 | } | |
222 | return 0; | |
223 | ||
224 | inst_del_port: | |
225 | __team_option_inst_del_port(team, port); | |
226 | return err; | |
227 | } | |
228 | ||
229 | static void __team_option_inst_mark_removed_port(struct team *team, | |
230 | struct team_port *port) | |
231 | { | |
232 | struct team_option_inst *opt_inst; | |
233 | ||
234 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
85d59a87 | 235 | if (opt_inst->info.port == port) { |
80f7c668 JP |
236 | opt_inst->changed = true; |
237 | opt_inst->removed = true; | |
238 | } | |
239 | } | |
240 | } | |
241 | ||
242 | static int __team_options_register(struct team *team, | |
243 | const struct team_option *option, | |
244 | size_t option_count) | |
3d249d4c JP |
245 | { |
246 | int i; | |
2bba19ff | 247 | struct team_option **dst_opts; |
358b8382 | 248 | int err; |
3d249d4c | 249 | |
2bba19ff JP |
250 | dst_opts = kzalloc(sizeof(struct team_option *) * option_count, |
251 | GFP_KERNEL); | |
252 | if (!dst_opts) | |
253 | return -ENOMEM; | |
358b8382 | 254 | for (i = 0; i < option_count; i++, option++) { |
358b8382 JP |
255 | if (__team_find_option(team, option->name)) { |
256 | err = -EEXIST; | |
80f7c668 | 257 | goto alloc_rollback; |
358b8382 | 258 | } |
f8a15af0 JP |
259 | dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); |
260 | if (!dst_opts[i]) { | |
358b8382 | 261 | err = -ENOMEM; |
80f7c668 | 262 | goto alloc_rollback; |
358b8382 | 263 | } |
358b8382 JP |
264 | } |
265 | ||
b82b9183 | 266 | for (i = 0; i < option_count; i++) { |
80f7c668 JP |
267 | err = __team_option_inst_add_option(team, dst_opts[i]); |
268 | if (err) | |
269 | goto inst_rollback; | |
358b8382 | 270 | list_add_tail(&dst_opts[i]->list, &team->option_list); |
b82b9183 | 271 | } |
358b8382 | 272 | |
2bba19ff | 273 | kfree(dst_opts); |
358b8382 JP |
274 | return 0; |
275 | ||
80f7c668 JP |
276 | inst_rollback: |
277 | for (i--; i >= 0; i--) | |
278 | __team_option_inst_del_option(team, dst_opts[i]); | |
279 | ||
280 | i = option_count - 1; | |
281 | alloc_rollback: | |
282 | for (i--; i >= 0; i--) | |
358b8382 JP |
283 | kfree(dst_opts[i]); |
284 | ||
2bba19ff | 285 | kfree(dst_opts); |
358b8382 | 286 | return err; |
3d249d4c | 287 | } |
358b8382 | 288 | |
b82b9183 JP |
289 | static void __team_options_mark_removed(struct team *team, |
290 | const struct team_option *option, | |
291 | size_t option_count) | |
292 | { | |
293 | int i; | |
294 | ||
295 | for (i = 0; i < option_count; i++, option++) { | |
296 | struct team_option *del_opt; | |
3d249d4c | 297 | |
b82b9183 | 298 | del_opt = __team_find_option(team, option->name); |
80f7c668 JP |
299 | if (del_opt) |
300 | __team_option_inst_mark_removed_option(team, del_opt); | |
b82b9183 JP |
301 | } |
302 | } | |
3d249d4c JP |
303 | |
304 | static void __team_options_unregister(struct team *team, | |
358b8382 | 305 | const struct team_option *option, |
3d249d4c JP |
306 | size_t option_count) |
307 | { | |
308 | int i; | |
309 | ||
358b8382 JP |
310 | for (i = 0; i < option_count; i++, option++) { |
311 | struct team_option *del_opt; | |
312 | ||
313 | del_opt = __team_find_option(team, option->name); | |
314 | if (del_opt) { | |
80f7c668 | 315 | __team_option_inst_del_option(team, del_opt); |
358b8382 JP |
316 | list_del(&del_opt->list); |
317 | kfree(del_opt); | |
318 | } | |
319 | } | |
3d249d4c JP |
320 | } |
321 | ||
b82b9183 JP |
322 | static void __team_options_change_check(struct team *team); |
323 | ||
324 | int team_options_register(struct team *team, | |
325 | const struct team_option *option, | |
326 | size_t option_count) | |
327 | { | |
328 | int err; | |
329 | ||
330 | err = __team_options_register(team, option, option_count); | |
331 | if (err) | |
332 | return err; | |
333 | __team_options_change_check(team); | |
334 | return 0; | |
335 | } | |
336 | EXPORT_SYMBOL(team_options_register); | |
337 | ||
358b8382 JP |
338 | void team_options_unregister(struct team *team, |
339 | const struct team_option *option, | |
3d249d4c JP |
340 | size_t option_count) |
341 | { | |
b82b9183 JP |
342 | __team_options_mark_removed(team, option, option_count); |
343 | __team_options_change_check(team); | |
3d249d4c | 344 | __team_options_unregister(team, option, option_count); |
3d249d4c JP |
345 | } |
346 | EXPORT_SYMBOL(team_options_unregister); | |
347 | ||
80f7c668 JP |
348 | static int team_option_get(struct team *team, |
349 | struct team_option_inst *opt_inst, | |
350 | struct team_gsetter_ctx *ctx) | |
351 | { | |
f82b959d JP |
352 | if (!opt_inst->option->getter) |
353 | return -EOPNOTSUPP; | |
80f7c668 JP |
354 | return opt_inst->option->getter(team, ctx); |
355 | } | |
356 | ||
357 | static int team_option_set(struct team *team, | |
358 | struct team_option_inst *opt_inst, | |
359 | struct team_gsetter_ctx *ctx) | |
3d249d4c | 360 | { |
f82b959d JP |
361 | if (!opt_inst->option->setter) |
362 | return -EOPNOTSUPP; | |
2fcdb2c9 | 363 | return opt_inst->option->setter(team, ctx); |
3d249d4c JP |
364 | } |
365 | ||
0f1aad2b JP |
366 | void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) |
367 | { | |
368 | struct team_option_inst *opt_inst; | |
369 | ||
370 | opt_inst = container_of(opt_inst_info, struct team_option_inst, info); | |
371 | opt_inst->changed = true; | |
372 | } | |
373 | EXPORT_SYMBOL(team_option_inst_set_change); | |
374 | ||
375 | void team_options_change_check(struct team *team) | |
376 | { | |
377 | __team_options_change_check(team); | |
378 | } | |
379 | EXPORT_SYMBOL(team_options_change_check); | |
380 | ||
381 | ||
3d249d4c JP |
382 | /**************** |
383 | * Mode handling | |
384 | ****************/ | |
385 | ||
386 | static LIST_HEAD(mode_list); | |
387 | static DEFINE_SPINLOCK(mode_list_lock); | |
388 | ||
0402788a JP |
389 | struct team_mode_item { |
390 | struct list_head list; | |
391 | const struct team_mode *mode; | |
392 | }; | |
393 | ||
394 | static struct team_mode_item *__find_mode(const char *kind) | |
3d249d4c | 395 | { |
0402788a | 396 | struct team_mode_item *mitem; |
3d249d4c | 397 | |
0402788a JP |
398 | list_for_each_entry(mitem, &mode_list, list) { |
399 | if (strcmp(mitem->mode->kind, kind) == 0) | |
400 | return mitem; | |
3d249d4c JP |
401 | } |
402 | return NULL; | |
403 | } | |
404 | ||
405 | static bool is_good_mode_name(const char *name) | |
406 | { | |
407 | while (*name != '\0') { | |
408 | if (!isalpha(*name) && !isdigit(*name) && *name != '_') | |
409 | return false; | |
410 | name++; | |
411 | } | |
412 | return true; | |
413 | } | |
414 | ||
0402788a | 415 | int team_mode_register(const struct team_mode *mode) |
3d249d4c JP |
416 | { |
417 | int err = 0; | |
0402788a | 418 | struct team_mode_item *mitem; |
3d249d4c JP |
419 | |
420 | if (!is_good_mode_name(mode->kind) || | |
421 | mode->priv_size > TEAM_MODE_PRIV_SIZE) | |
422 | return -EINVAL; | |
0402788a JP |
423 | |
424 | mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); | |
425 | if (!mitem) | |
426 | return -ENOMEM; | |
427 | ||
3d249d4c JP |
428 | spin_lock(&mode_list_lock); |
429 | if (__find_mode(mode->kind)) { | |
430 | err = -EEXIST; | |
0402788a | 431 | kfree(mitem); |
3d249d4c JP |
432 | goto unlock; |
433 | } | |
0402788a JP |
434 | mitem->mode = mode; |
435 | list_add_tail(&mitem->list, &mode_list); | |
3d249d4c JP |
436 | unlock: |
437 | spin_unlock(&mode_list_lock); | |
438 | return err; | |
439 | } | |
440 | EXPORT_SYMBOL(team_mode_register); | |
441 | ||
0402788a | 442 | void team_mode_unregister(const struct team_mode *mode) |
3d249d4c | 443 | { |
0402788a JP |
444 | struct team_mode_item *mitem; |
445 | ||
3d249d4c | 446 | spin_lock(&mode_list_lock); |
0402788a JP |
447 | mitem = __find_mode(mode->kind); |
448 | if (mitem) { | |
449 | list_del_init(&mitem->list); | |
450 | kfree(mitem); | |
451 | } | |
3d249d4c | 452 | spin_unlock(&mode_list_lock); |
3d249d4c JP |
453 | } |
454 | EXPORT_SYMBOL(team_mode_unregister); | |
455 | ||
0402788a | 456 | static const struct team_mode *team_mode_get(const char *kind) |
3d249d4c | 457 | { |
0402788a JP |
458 | struct team_mode_item *mitem; |
459 | const struct team_mode *mode = NULL; | |
3d249d4c JP |
460 | |
461 | spin_lock(&mode_list_lock); | |
0402788a JP |
462 | mitem = __find_mode(kind); |
463 | if (!mitem) { | |
3d249d4c JP |
464 | spin_unlock(&mode_list_lock); |
465 | request_module("team-mode-%s", kind); | |
466 | spin_lock(&mode_list_lock); | |
0402788a | 467 | mitem = __find_mode(kind); |
3d249d4c | 468 | } |
0402788a JP |
469 | if (mitem) { |
470 | mode = mitem->mode; | |
3d249d4c JP |
471 | if (!try_module_get(mode->owner)) |
472 | mode = NULL; | |
0402788a | 473 | } |
3d249d4c JP |
474 | |
475 | spin_unlock(&mode_list_lock); | |
476 | return mode; | |
477 | } | |
478 | ||
479 | static void team_mode_put(const struct team_mode *mode) | |
480 | { | |
481 | module_put(mode->owner); | |
482 | } | |
483 | ||
484 | static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) | |
485 | { | |
486 | dev_kfree_skb_any(skb); | |
487 | return false; | |
488 | } | |
489 | ||
490 | rx_handler_result_t team_dummy_receive(struct team *team, | |
491 | struct team_port *port, | |
492 | struct sk_buff *skb) | |
493 | { | |
494 | return RX_HANDLER_ANOTHER; | |
495 | } | |
496 | ||
d299cd51 JP |
497 | static const struct team_mode __team_no_mode = { |
498 | .kind = "*NOMODE*", | |
499 | }; | |
500 | ||
501 | static bool team_is_mode_set(struct team *team) | |
502 | { | |
503 | return team->mode != &__team_no_mode; | |
504 | } | |
505 | ||
506 | static void team_set_no_mode(struct team *team) | |
507 | { | |
508 | team->mode = &__team_no_mode; | |
509 | } | |
510 | ||
122bb046 | 511 | static void __team_adjust_ops(struct team *team, int en_port_count) |
3d249d4c JP |
512 | { |
513 | /* | |
514 | * To avoid checks in rx/tx skb paths, ensure here that non-null and | |
515 | * correct ops are always set. | |
516 | */ | |
517 | ||
122bb046 JP |
518 | if (!en_port_count || !team_is_mode_set(team) || |
519 | !team->mode->ops->transmit) | |
3d249d4c JP |
520 | team->ops.transmit = team_dummy_transmit; |
521 | else | |
522 | team->ops.transmit = team->mode->ops->transmit; | |
523 | ||
122bb046 JP |
524 | if (!en_port_count || !team_is_mode_set(team) || |
525 | !team->mode->ops->receive) | |
3d249d4c JP |
526 | team->ops.receive = team_dummy_receive; |
527 | else | |
528 | team->ops.receive = team->mode->ops->receive; | |
529 | } | |
530 | ||
122bb046 JP |
531 | static void team_adjust_ops(struct team *team) |
532 | { | |
533 | __team_adjust_ops(team, team->en_port_count); | |
534 | } | |
535 | ||
3d249d4c JP |
536 | /* |
537 | * We can benefit from the fact that it's ensured no port is present | |
538 | * at the time of mode change. Therefore no packets are in fly so there's no | |
539 | * need to set mode operations in any special way. | |
540 | */ | |
541 | static int __team_change_mode(struct team *team, | |
542 | const struct team_mode *new_mode) | |
543 | { | |
544 | /* Check if mode was previously set and do cleanup if so */ | |
d299cd51 | 545 | if (team_is_mode_set(team)) { |
3d249d4c JP |
546 | void (*exit_op)(struct team *team) = team->ops.exit; |
547 | ||
548 | /* Clear ops area so no callback is called any longer */ | |
549 | memset(&team->ops, 0, sizeof(struct team_mode_ops)); | |
550 | team_adjust_ops(team); | |
551 | ||
552 | if (exit_op) | |
553 | exit_op(team); | |
554 | team_mode_put(team->mode); | |
d299cd51 | 555 | team_set_no_mode(team); |
3d249d4c JP |
556 | /* zero private data area */ |
557 | memset(&team->mode_priv, 0, | |
558 | sizeof(struct team) - offsetof(struct team, mode_priv)); | |
559 | } | |
560 | ||
561 | if (!new_mode) | |
562 | return 0; | |
563 | ||
564 | if (new_mode->ops->init) { | |
565 | int err; | |
566 | ||
567 | err = new_mode->ops->init(team); | |
568 | if (err) | |
569 | return err; | |
570 | } | |
571 | ||
572 | team->mode = new_mode; | |
573 | memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); | |
574 | team_adjust_ops(team); | |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
579 | static int team_change_mode(struct team *team, const char *kind) | |
580 | { | |
0402788a | 581 | const struct team_mode *new_mode; |
3d249d4c JP |
582 | struct net_device *dev = team->dev; |
583 | int err; | |
584 | ||
585 | if (!list_empty(&team->port_list)) { | |
586 | netdev_err(dev, "No ports can be present during mode change\n"); | |
587 | return -EBUSY; | |
588 | } | |
589 | ||
d299cd51 | 590 | if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { |
3d249d4c JP |
591 | netdev_err(dev, "Unable to change to the same mode the team is in\n"); |
592 | return -EINVAL; | |
593 | } | |
594 | ||
595 | new_mode = team_mode_get(kind); | |
596 | if (!new_mode) { | |
597 | netdev_err(dev, "Mode \"%s\" not found\n", kind); | |
598 | return -EINVAL; | |
599 | } | |
600 | ||
601 | err = __team_change_mode(team, new_mode); | |
602 | if (err) { | |
603 | netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); | |
604 | team_mode_put(new_mode); | |
605 | return err; | |
606 | } | |
607 | ||
608 | netdev_info(dev, "Mode changed to \"%s\"\n", kind); | |
609 | return 0; | |
610 | } | |
611 | ||
612 | ||
613 | /************************ | |
614 | * Rx path frame handler | |
615 | ************************/ | |
616 | ||
617 | /* note: already called with rcu_read_lock */ | |
618 | static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) | |
619 | { | |
620 | struct sk_buff *skb = *pskb; | |
621 | struct team_port *port; | |
622 | struct team *team; | |
623 | rx_handler_result_t res; | |
624 | ||
625 | skb = skb_share_check(skb, GFP_ATOMIC); | |
626 | if (!skb) | |
627 | return RX_HANDLER_CONSUMED; | |
628 | ||
629 | *pskb = skb; | |
630 | ||
631 | port = team_port_get_rcu(skb->dev); | |
632 | team = port->team; | |
19a0b58e JP |
633 | if (!team_port_enabled(port)) { |
634 | /* allow exact match delivery for disabled ports */ | |
635 | res = RX_HANDLER_EXACT; | |
636 | } else { | |
637 | res = team->ops.receive(team, port, skb); | |
638 | } | |
3d249d4c JP |
639 | if (res == RX_HANDLER_ANOTHER) { |
640 | struct team_pcpu_stats *pcpu_stats; | |
641 | ||
642 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
643 | u64_stats_update_begin(&pcpu_stats->syncp); | |
644 | pcpu_stats->rx_packets++; | |
645 | pcpu_stats->rx_bytes += skb->len; | |
646 | if (skb->pkt_type == PACKET_MULTICAST) | |
647 | pcpu_stats->rx_multicast++; | |
648 | u64_stats_update_end(&pcpu_stats->syncp); | |
649 | ||
650 | skb->dev = team->dev; | |
651 | } else { | |
652 | this_cpu_inc(team->pcpu_stats->rx_dropped); | |
653 | } | |
654 | ||
655 | return res; | |
656 | } | |
657 | ||
658 | ||
659 | /**************** | |
660 | * Port handling | |
661 | ****************/ | |
662 | ||
663 | static bool team_port_find(const struct team *team, | |
664 | const struct team_port *port) | |
665 | { | |
666 | struct team_port *cur; | |
667 | ||
668 | list_for_each_entry(cur, &team->port_list, list) | |
669 | if (cur == port) | |
670 | return true; | |
671 | return false; | |
672 | } | |
673 | ||
52a4fd77 | 674 | bool team_port_enabled(struct team_port *port) |
19a0b58e JP |
675 | { |
676 | return port->index != -1; | |
677 | } | |
52a4fd77 | 678 | EXPORT_SYMBOL(team_port_enabled); |
19a0b58e | 679 | |
6e88e135 JP |
680 | bool team_port_txable(struct team_port *port) |
681 | { | |
682 | return port->linkup && team_port_enabled(port); | |
683 | } | |
684 | EXPORT_SYMBOL(team_port_txable); | |
685 | ||
3d249d4c | 686 | /* |
19a0b58e JP |
687 | * Enable/disable port by adding to enabled port hashlist and setting |
688 | * port->index (Might be racy so reader could see incorrect ifindex when | |
689 | * processing a flying packet, but that is not a problem). Write guarded | |
690 | * by team->lock. | |
3d249d4c | 691 | */ |
19a0b58e JP |
692 | static void team_port_enable(struct team *team, |
693 | struct team_port *port) | |
3d249d4c | 694 | { |
19a0b58e JP |
695 | if (team_port_enabled(port)) |
696 | return; | |
697 | port->index = team->en_port_count++; | |
3d249d4c JP |
698 | hlist_add_head_rcu(&port->hlist, |
699 | team_port_index_hash(team, port->index)); | |
122bb046 | 700 | team_adjust_ops(team); |
4bccfd17 JP |
701 | if (team->ops.port_enabled) |
702 | team->ops.port_enabled(team, port); | |
3d249d4c JP |
703 | } |
704 | ||
705 | static void __reconstruct_port_hlist(struct team *team, int rm_index) | |
706 | { | |
707 | int i; | |
708 | struct team_port *port; | |
709 | ||
19a0b58e | 710 | for (i = rm_index + 1; i < team->en_port_count; i++) { |
3d249d4c JP |
711 | port = team_get_port_by_index(team, i); |
712 | hlist_del_rcu(&port->hlist); | |
713 | port->index--; | |
714 | hlist_add_head_rcu(&port->hlist, | |
715 | team_port_index_hash(team, port->index)); | |
716 | } | |
717 | } | |
718 | ||
19a0b58e JP |
719 | static void team_port_disable(struct team *team, |
720 | struct team_port *port) | |
3d249d4c | 721 | { |
19a0b58e JP |
722 | if (!team_port_enabled(port)) |
723 | return; | |
4bccfd17 JP |
724 | if (team->ops.port_disabled) |
725 | team->ops.port_disabled(team, port); | |
3d249d4c | 726 | hlist_del_rcu(&port->hlist); |
122bb046 | 727 | __reconstruct_port_hlist(team, port->index); |
19a0b58e | 728 | port->index = -1; |
122bb046 JP |
729 | __team_adjust_ops(team, team->en_port_count - 1); |
730 | /* | |
731 | * Wait until readers see adjusted ops. This ensures that | |
732 | * readers never see team->en_port_count == 0 | |
733 | */ | |
734 | synchronize_rcu(); | |
735 | team->en_port_count--; | |
3d249d4c JP |
736 | } |
737 | ||
738 | #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ | |
739 | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ | |
740 | NETIF_F_HIGHDMA | NETIF_F_LRO) | |
741 | ||
742 | static void __team_compute_features(struct team *team) | |
743 | { | |
744 | struct team_port *port; | |
745 | u32 vlan_features = TEAM_VLAN_FEATURES; | |
746 | unsigned short max_hard_header_len = ETH_HLEN; | |
747 | ||
748 | list_for_each_entry(port, &team->port_list, list) { | |
749 | vlan_features = netdev_increment_features(vlan_features, | |
750 | port->dev->vlan_features, | |
751 | TEAM_VLAN_FEATURES); | |
752 | ||
753 | if (port->dev->hard_header_len > max_hard_header_len) | |
754 | max_hard_header_len = port->dev->hard_header_len; | |
755 | } | |
756 | ||
757 | team->dev->vlan_features = vlan_features; | |
758 | team->dev->hard_header_len = max_hard_header_len; | |
759 | ||
760 | netdev_change_features(team->dev); | |
761 | } | |
762 | ||
763 | static void team_compute_features(struct team *team) | |
764 | { | |
61dc3461 | 765 | mutex_lock(&team->lock); |
3d249d4c | 766 | __team_compute_features(team); |
61dc3461 | 767 | mutex_unlock(&team->lock); |
3d249d4c JP |
768 | } |
769 | ||
770 | static int team_port_enter(struct team *team, struct team_port *port) | |
771 | { | |
772 | int err = 0; | |
773 | ||
774 | dev_hold(team->dev); | |
775 | port->dev->priv_flags |= IFF_TEAM_PORT; | |
776 | if (team->ops.port_enter) { | |
777 | err = team->ops.port_enter(team, port); | |
778 | if (err) { | |
779 | netdev_err(team->dev, "Device %s failed to enter team mode\n", | |
780 | port->dev->name); | |
781 | goto err_port_enter; | |
782 | } | |
783 | } | |
784 | ||
785 | return 0; | |
786 | ||
787 | err_port_enter: | |
788 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
789 | dev_put(team->dev); | |
790 | ||
791 | return err; | |
792 | } | |
793 | ||
794 | static void team_port_leave(struct team *team, struct team_port *port) | |
795 | { | |
796 | if (team->ops.port_leave) | |
797 | team->ops.port_leave(team, port); | |
798 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
799 | dev_put(team->dev); | |
800 | } | |
801 | ||
802 | static void __team_port_change_check(struct team_port *port, bool linkup); | |
803 | ||
804 | static int team_port_add(struct team *team, struct net_device *port_dev) | |
805 | { | |
806 | struct net_device *dev = team->dev; | |
807 | struct team_port *port; | |
808 | char *portname = port_dev->name; | |
809 | int err; | |
810 | ||
811 | if (port_dev->flags & IFF_LOOPBACK || | |
812 | port_dev->type != ARPHRD_ETHER) { | |
813 | netdev_err(dev, "Device %s is of an unsupported type\n", | |
814 | portname); | |
815 | return -EINVAL; | |
816 | } | |
817 | ||
818 | if (team_port_exists(port_dev)) { | |
819 | netdev_err(dev, "Device %s is already a port " | |
820 | "of a team device\n", portname); | |
821 | return -EBUSY; | |
822 | } | |
823 | ||
824 | if (port_dev->flags & IFF_UP) { | |
825 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", | |
826 | portname); | |
827 | return -EBUSY; | |
828 | } | |
829 | ||
5149ee58 JP |
830 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
831 | GFP_KERNEL); | |
3d249d4c JP |
832 | if (!port) |
833 | return -ENOMEM; | |
834 | ||
835 | port->dev = port_dev; | |
836 | port->team = team; | |
837 | ||
838 | port->orig.mtu = port_dev->mtu; | |
839 | err = dev_set_mtu(port_dev, dev->mtu); | |
840 | if (err) { | |
841 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); | |
842 | goto err_set_mtu; | |
843 | } | |
844 | ||
845 | memcpy(port->orig.dev_addr, port_dev->dev_addr, ETH_ALEN); | |
846 | ||
847 | err = team_port_enter(team, port); | |
848 | if (err) { | |
849 | netdev_err(dev, "Device %s failed to enter team mode\n", | |
850 | portname); | |
851 | goto err_port_enter; | |
852 | } | |
853 | ||
854 | err = dev_open(port_dev); | |
855 | if (err) { | |
856 | netdev_dbg(dev, "Device %s opening failed\n", | |
857 | portname); | |
858 | goto err_dev_open; | |
859 | } | |
860 | ||
57459185 JP |
861 | err = vlan_vids_add_by_dev(port_dev, dev); |
862 | if (err) { | |
863 | netdev_err(dev, "Failed to add vlan ids to device %s\n", | |
864 | portname); | |
865 | goto err_vids_add; | |
866 | } | |
867 | ||
3d249d4c JP |
868 | err = netdev_set_master(port_dev, dev); |
869 | if (err) { | |
870 | netdev_err(dev, "Device %s failed to set master\n", portname); | |
871 | goto err_set_master; | |
872 | } | |
873 | ||
874 | err = netdev_rx_handler_register(port_dev, team_handle_frame, | |
875 | port); | |
876 | if (err) { | |
877 | netdev_err(dev, "Device %s failed to register rx_handler\n", | |
878 | portname); | |
879 | goto err_handler_register; | |
880 | } | |
881 | ||
35b384bd | 882 | err = __team_option_inst_add_port(team, port); |
80f7c668 JP |
883 | if (err) { |
884 | netdev_err(dev, "Device %s failed to add per-port options\n", | |
885 | portname); | |
886 | goto err_option_port_add; | |
887 | } | |
888 | ||
19a0b58e JP |
889 | port->index = -1; |
890 | team_port_enable(team, port); | |
891 | list_add_tail_rcu(&port->list, &team->port_list); | |
3d249d4c JP |
892 | __team_compute_features(team); |
893 | __team_port_change_check(port, !!netif_carrier_ok(port_dev)); | |
35b384bd | 894 | __team_options_change_check(team); |
3d249d4c JP |
895 | |
896 | netdev_info(dev, "Port device %s added\n", portname); | |
897 | ||
898 | return 0; | |
899 | ||
80f7c668 JP |
900 | err_option_port_add: |
901 | netdev_rx_handler_unregister(port_dev); | |
902 | ||
3d249d4c JP |
903 | err_handler_register: |
904 | netdev_set_master(port_dev, NULL); | |
905 | ||
906 | err_set_master: | |
57459185 JP |
907 | vlan_vids_del_by_dev(port_dev, dev); |
908 | ||
909 | err_vids_add: | |
3d249d4c JP |
910 | dev_close(port_dev); |
911 | ||
912 | err_dev_open: | |
913 | team_port_leave(team, port); | |
914 | team_port_set_orig_mac(port); | |
915 | ||
916 | err_port_enter: | |
917 | dev_set_mtu(port_dev, port->orig.mtu); | |
918 | ||
919 | err_set_mtu: | |
920 | kfree(port); | |
921 | ||
922 | return err; | |
923 | } | |
924 | ||
925 | static int team_port_del(struct team *team, struct net_device *port_dev) | |
926 | { | |
927 | struct net_device *dev = team->dev; | |
928 | struct team_port *port; | |
929 | char *portname = port_dev->name; | |
930 | ||
931 | port = team_port_get_rtnl(port_dev); | |
932 | if (!port || !team_port_find(team, port)) { | |
933 | netdev_err(dev, "Device %s does not act as a port of this team\n", | |
934 | portname); | |
935 | return -ENOENT; | |
936 | } | |
937 | ||
35b384bd JP |
938 | __team_option_inst_mark_removed_port(team, port); |
939 | __team_options_change_check(team); | |
940 | __team_option_inst_del_port(team, port); | |
b82b9183 | 941 | port->removed = true; |
3d249d4c | 942 | __team_port_change_check(port, false); |
19a0b58e JP |
943 | team_port_disable(team, port); |
944 | list_del_rcu(&port->list); | |
3d249d4c JP |
945 | netdev_rx_handler_unregister(port_dev); |
946 | netdev_set_master(port_dev, NULL); | |
57459185 | 947 | vlan_vids_del_by_dev(port_dev, dev); |
3d249d4c JP |
948 | dev_close(port_dev); |
949 | team_port_leave(team, port); | |
950 | team_port_set_orig_mac(port); | |
951 | dev_set_mtu(port_dev, port->orig.mtu); | |
952 | synchronize_rcu(); | |
953 | kfree(port); | |
954 | netdev_info(dev, "Port device %s removed\n", portname); | |
955 | __team_compute_features(team); | |
956 | ||
957 | return 0; | |
958 | } | |
959 | ||
960 | ||
961 | /***************** | |
962 | * Net device ops | |
963 | *****************/ | |
964 | ||
80f7c668 | 965 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 966 | { |
d299cd51 | 967 | ctx->data.str_val = team->mode->kind; |
3d249d4c JP |
968 | return 0; |
969 | } | |
970 | ||
80f7c668 | 971 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 972 | { |
80f7c668 | 973 | return team_change_mode(team, ctx->data.str_val); |
3d249d4c JP |
974 | } |
975 | ||
acd69962 JP |
976 | static int team_port_en_option_get(struct team *team, |
977 | struct team_gsetter_ctx *ctx) | |
978 | { | |
85d59a87 JP |
979 | struct team_port *port = ctx->info->port; |
980 | ||
981 | ctx->data.bool_val = team_port_enabled(port); | |
acd69962 JP |
982 | return 0; |
983 | } | |
984 | ||
985 | static int team_port_en_option_set(struct team *team, | |
986 | struct team_gsetter_ctx *ctx) | |
987 | { | |
85d59a87 JP |
988 | struct team_port *port = ctx->info->port; |
989 | ||
acd69962 | 990 | if (ctx->data.bool_val) |
85d59a87 | 991 | team_port_enable(team, port); |
acd69962 | 992 | else |
85d59a87 | 993 | team_port_disable(team, port); |
acd69962 JP |
994 | return 0; |
995 | } | |
996 | ||
71472ec1 JP |
997 | static int team_user_linkup_option_get(struct team *team, |
998 | struct team_gsetter_ctx *ctx) | |
999 | { | |
85d59a87 JP |
1000 | struct team_port *port = ctx->info->port; |
1001 | ||
1002 | ctx->data.bool_val = port->user.linkup; | |
71472ec1 JP |
1003 | return 0; |
1004 | } | |
1005 | ||
1006 | static int team_user_linkup_option_set(struct team *team, | |
1007 | struct team_gsetter_ctx *ctx) | |
1008 | { | |
85d59a87 JP |
1009 | struct team_port *port = ctx->info->port; |
1010 | ||
1011 | port->user.linkup = ctx->data.bool_val; | |
1012 | team_refresh_port_linkup(port); | |
71472ec1 JP |
1013 | return 0; |
1014 | } | |
1015 | ||
1016 | static int team_user_linkup_en_option_get(struct team *team, | |
1017 | struct team_gsetter_ctx *ctx) | |
1018 | { | |
85d59a87 | 1019 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1020 | |
1021 | ctx->data.bool_val = port->user.linkup_enabled; | |
1022 | return 0; | |
1023 | } | |
1024 | ||
1025 | static int team_user_linkup_en_option_set(struct team *team, | |
1026 | struct team_gsetter_ctx *ctx) | |
1027 | { | |
85d59a87 | 1028 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1029 | |
1030 | port->user.linkup_enabled = ctx->data.bool_val; | |
85d59a87 | 1031 | team_refresh_port_linkup(port); |
71472ec1 JP |
1032 | return 0; |
1033 | } | |
1034 | ||
358b8382 | 1035 | static const struct team_option team_options[] = { |
3d249d4c JP |
1036 | { |
1037 | .name = "mode", | |
1038 | .type = TEAM_OPTION_TYPE_STRING, | |
1039 | .getter = team_mode_option_get, | |
1040 | .setter = team_mode_option_set, | |
1041 | }, | |
acd69962 JP |
1042 | { |
1043 | .name = "enabled", | |
1044 | .type = TEAM_OPTION_TYPE_BOOL, | |
1045 | .per_port = true, | |
1046 | .getter = team_port_en_option_get, | |
1047 | .setter = team_port_en_option_set, | |
1048 | }, | |
71472ec1 JP |
1049 | { |
1050 | .name = "user_linkup", | |
1051 | .type = TEAM_OPTION_TYPE_BOOL, | |
1052 | .per_port = true, | |
1053 | .getter = team_user_linkup_option_get, | |
1054 | .setter = team_user_linkup_option_set, | |
1055 | }, | |
1056 | { | |
1057 | .name = "user_linkup_enabled", | |
1058 | .type = TEAM_OPTION_TYPE_BOOL, | |
1059 | .per_port = true, | |
1060 | .getter = team_user_linkup_en_option_get, | |
1061 | .setter = team_user_linkup_en_option_set, | |
1062 | }, | |
3d249d4c JP |
1063 | }; |
1064 | ||
1065 | static int team_init(struct net_device *dev) | |
1066 | { | |
1067 | struct team *team = netdev_priv(dev); | |
1068 | int i; | |
358b8382 | 1069 | int err; |
3d249d4c JP |
1070 | |
1071 | team->dev = dev; | |
61dc3461 | 1072 | mutex_init(&team->lock); |
d299cd51 | 1073 | team_set_no_mode(team); |
3d249d4c JP |
1074 | |
1075 | team->pcpu_stats = alloc_percpu(struct team_pcpu_stats); | |
1076 | if (!team->pcpu_stats) | |
1077 | return -ENOMEM; | |
1078 | ||
1079 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) | |
19a0b58e | 1080 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
3d249d4c JP |
1081 | INIT_LIST_HEAD(&team->port_list); |
1082 | ||
1083 | team_adjust_ops(team); | |
1084 | ||
1085 | INIT_LIST_HEAD(&team->option_list); | |
80f7c668 | 1086 | INIT_LIST_HEAD(&team->option_inst_list); |
358b8382 JP |
1087 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
1088 | if (err) | |
1089 | goto err_options_register; | |
3d249d4c JP |
1090 | netif_carrier_off(dev); |
1091 | ||
1092 | return 0; | |
358b8382 JP |
1093 | |
1094 | err_options_register: | |
1095 | free_percpu(team->pcpu_stats); | |
1096 | ||
1097 | return err; | |
3d249d4c JP |
1098 | } |
1099 | ||
1100 | static void team_uninit(struct net_device *dev) | |
1101 | { | |
1102 | struct team *team = netdev_priv(dev); | |
1103 | struct team_port *port; | |
1104 | struct team_port *tmp; | |
1105 | ||
61dc3461 | 1106 | mutex_lock(&team->lock); |
3d249d4c JP |
1107 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
1108 | team_port_del(team, port->dev); | |
1109 | ||
1110 | __team_change_mode(team, NULL); /* cleanup */ | |
1111 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); | |
61dc3461 | 1112 | mutex_unlock(&team->lock); |
3d249d4c JP |
1113 | } |
1114 | ||
1115 | static void team_destructor(struct net_device *dev) | |
1116 | { | |
1117 | struct team *team = netdev_priv(dev); | |
1118 | ||
1119 | free_percpu(team->pcpu_stats); | |
1120 | free_netdev(dev); | |
1121 | } | |
1122 | ||
1123 | static int team_open(struct net_device *dev) | |
1124 | { | |
1125 | netif_carrier_on(dev); | |
1126 | return 0; | |
1127 | } | |
1128 | ||
1129 | static int team_close(struct net_device *dev) | |
1130 | { | |
1131 | netif_carrier_off(dev); | |
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | /* | |
1136 | * note: already called with rcu_read_lock | |
1137 | */ | |
1138 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) | |
1139 | { | |
1140 | struct team *team = netdev_priv(dev); | |
1141 | bool tx_success = false; | |
1142 | unsigned int len = skb->len; | |
1143 | ||
1144 | tx_success = team->ops.transmit(team, skb); | |
1145 | if (tx_success) { | |
1146 | struct team_pcpu_stats *pcpu_stats; | |
1147 | ||
1148 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
1149 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1150 | pcpu_stats->tx_packets++; | |
1151 | pcpu_stats->tx_bytes += len; | |
1152 | u64_stats_update_end(&pcpu_stats->syncp); | |
1153 | } else { | |
1154 | this_cpu_inc(team->pcpu_stats->tx_dropped); | |
1155 | } | |
1156 | ||
1157 | return NETDEV_TX_OK; | |
1158 | } | |
1159 | ||
1160 | static void team_change_rx_flags(struct net_device *dev, int change) | |
1161 | { | |
1162 | struct team *team = netdev_priv(dev); | |
1163 | struct team_port *port; | |
1164 | int inc; | |
1165 | ||
1166 | rcu_read_lock(); | |
1167 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1168 | if (change & IFF_PROMISC) { | |
1169 | inc = dev->flags & IFF_PROMISC ? 1 : -1; | |
1170 | dev_set_promiscuity(port->dev, inc); | |
1171 | } | |
1172 | if (change & IFF_ALLMULTI) { | |
1173 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; | |
1174 | dev_set_allmulti(port->dev, inc); | |
1175 | } | |
1176 | } | |
1177 | rcu_read_unlock(); | |
1178 | } | |
1179 | ||
1180 | static void team_set_rx_mode(struct net_device *dev) | |
1181 | { | |
1182 | struct team *team = netdev_priv(dev); | |
1183 | struct team_port *port; | |
1184 | ||
1185 | rcu_read_lock(); | |
1186 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1187 | dev_uc_sync(port->dev, dev); | |
1188 | dev_mc_sync(port->dev, dev); | |
1189 | } | |
1190 | rcu_read_unlock(); | |
1191 | } | |
1192 | ||
1193 | static int team_set_mac_address(struct net_device *dev, void *p) | |
1194 | { | |
1195 | struct team *team = netdev_priv(dev); | |
1196 | struct team_port *port; | |
5a1d1c8c | 1197 | int err; |
3d249d4c | 1198 | |
5a1d1c8c JP |
1199 | err = eth_mac_addr(dev, p); |
1200 | if (err) | |
1201 | return err; | |
3d249d4c JP |
1202 | rcu_read_lock(); |
1203 | list_for_each_entry_rcu(port, &team->port_list, list) | |
1204 | if (team->ops.port_change_mac) | |
1205 | team->ops.port_change_mac(team, port); | |
1206 | rcu_read_unlock(); | |
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | static int team_change_mtu(struct net_device *dev, int new_mtu) | |
1211 | { | |
1212 | struct team *team = netdev_priv(dev); | |
1213 | struct team_port *port; | |
1214 | int err; | |
1215 | ||
1216 | /* | |
1217 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1218 | * to traverse list in reverse under rcu_read_lock | |
1219 | */ | |
61dc3461 | 1220 | mutex_lock(&team->lock); |
3d249d4c JP |
1221 | list_for_each_entry(port, &team->port_list, list) { |
1222 | err = dev_set_mtu(port->dev, new_mtu); | |
1223 | if (err) { | |
1224 | netdev_err(dev, "Device %s failed to change mtu", | |
1225 | port->dev->name); | |
1226 | goto unwind; | |
1227 | } | |
1228 | } | |
61dc3461 | 1229 | mutex_unlock(&team->lock); |
3d249d4c JP |
1230 | |
1231 | dev->mtu = new_mtu; | |
1232 | ||
1233 | return 0; | |
1234 | ||
1235 | unwind: | |
1236 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1237 | dev_set_mtu(port->dev, dev->mtu); | |
61dc3461 | 1238 | mutex_unlock(&team->lock); |
3d249d4c JP |
1239 | |
1240 | return err; | |
1241 | } | |
1242 | ||
1243 | static struct rtnl_link_stats64 * | |
1244 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
1245 | { | |
1246 | struct team *team = netdev_priv(dev); | |
1247 | struct team_pcpu_stats *p; | |
1248 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; | |
1249 | u32 rx_dropped = 0, tx_dropped = 0; | |
1250 | unsigned int start; | |
1251 | int i; | |
1252 | ||
1253 | for_each_possible_cpu(i) { | |
1254 | p = per_cpu_ptr(team->pcpu_stats, i); | |
1255 | do { | |
1256 | start = u64_stats_fetch_begin_bh(&p->syncp); | |
1257 | rx_packets = p->rx_packets; | |
1258 | rx_bytes = p->rx_bytes; | |
1259 | rx_multicast = p->rx_multicast; | |
1260 | tx_packets = p->tx_packets; | |
1261 | tx_bytes = p->tx_bytes; | |
1262 | } while (u64_stats_fetch_retry_bh(&p->syncp, start)); | |
1263 | ||
1264 | stats->rx_packets += rx_packets; | |
1265 | stats->rx_bytes += rx_bytes; | |
1266 | stats->multicast += rx_multicast; | |
1267 | stats->tx_packets += tx_packets; | |
1268 | stats->tx_bytes += tx_bytes; | |
1269 | /* | |
1270 | * rx_dropped & tx_dropped are u32, updated | |
1271 | * without syncp protection. | |
1272 | */ | |
1273 | rx_dropped += p->rx_dropped; | |
1274 | tx_dropped += p->tx_dropped; | |
1275 | } | |
1276 | stats->rx_dropped = rx_dropped; | |
1277 | stats->tx_dropped = tx_dropped; | |
1278 | return stats; | |
1279 | } | |
1280 | ||
8e586137 | 1281 | static int team_vlan_rx_add_vid(struct net_device *dev, uint16_t vid) |
3d249d4c JP |
1282 | { |
1283 | struct team *team = netdev_priv(dev); | |
1284 | struct team_port *port; | |
87002b03 | 1285 | int err; |
3d249d4c | 1286 | |
87002b03 JP |
1287 | /* |
1288 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1289 | * to traverse list in reverse under rcu_read_lock | |
1290 | */ | |
1291 | mutex_lock(&team->lock); | |
1292 | list_for_each_entry(port, &team->port_list, list) { | |
1293 | err = vlan_vid_add(port->dev, vid); | |
1294 | if (err) | |
1295 | goto unwind; | |
3d249d4c | 1296 | } |
87002b03 | 1297 | mutex_unlock(&team->lock); |
8e586137 JP |
1298 | |
1299 | return 0; | |
87002b03 JP |
1300 | |
1301 | unwind: | |
1302 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1303 | vlan_vid_del(port->dev, vid); | |
1304 | mutex_unlock(&team->lock); | |
1305 | ||
1306 | return err; | |
3d249d4c JP |
1307 | } |
1308 | ||
8e586137 | 1309 | static int team_vlan_rx_kill_vid(struct net_device *dev, uint16_t vid) |
3d249d4c JP |
1310 | { |
1311 | struct team *team = netdev_priv(dev); | |
1312 | struct team_port *port; | |
1313 | ||
1314 | rcu_read_lock(); | |
87002b03 JP |
1315 | list_for_each_entry_rcu(port, &team->port_list, list) |
1316 | vlan_vid_del(port->dev, vid); | |
3d249d4c | 1317 | rcu_read_unlock(); |
8e586137 JP |
1318 | |
1319 | return 0; | |
3d249d4c JP |
1320 | } |
1321 | ||
1322 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev) | |
1323 | { | |
1324 | struct team *team = netdev_priv(dev); | |
1325 | int err; | |
1326 | ||
61dc3461 | 1327 | mutex_lock(&team->lock); |
3d249d4c | 1328 | err = team_port_add(team, port_dev); |
61dc3461 | 1329 | mutex_unlock(&team->lock); |
3d249d4c JP |
1330 | return err; |
1331 | } | |
1332 | ||
1333 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) | |
1334 | { | |
1335 | struct team *team = netdev_priv(dev); | |
1336 | int err; | |
1337 | ||
61dc3461 | 1338 | mutex_lock(&team->lock); |
3d249d4c | 1339 | err = team_port_del(team, port_dev); |
61dc3461 | 1340 | mutex_unlock(&team->lock); |
3d249d4c JP |
1341 | return err; |
1342 | } | |
1343 | ||
234a8fd4 JP |
1344 | static netdev_features_t team_fix_features(struct net_device *dev, |
1345 | netdev_features_t features) | |
1346 | { | |
1347 | struct team_port *port; | |
1348 | struct team *team = netdev_priv(dev); | |
1349 | netdev_features_t mask; | |
1350 | ||
1351 | mask = features; | |
1352 | features &= ~NETIF_F_ONE_FOR_ALL; | |
1353 | features |= NETIF_F_ALL_FOR_ALL; | |
1354 | ||
1355 | rcu_read_lock(); | |
1356 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1357 | features = netdev_increment_features(features, | |
1358 | port->dev->features, | |
1359 | mask); | |
1360 | } | |
1361 | rcu_read_unlock(); | |
1362 | return features; | |
1363 | } | |
1364 | ||
3d249d4c JP |
1365 | static const struct net_device_ops team_netdev_ops = { |
1366 | .ndo_init = team_init, | |
1367 | .ndo_uninit = team_uninit, | |
1368 | .ndo_open = team_open, | |
1369 | .ndo_stop = team_close, | |
1370 | .ndo_start_xmit = team_xmit, | |
1371 | .ndo_change_rx_flags = team_change_rx_flags, | |
1372 | .ndo_set_rx_mode = team_set_rx_mode, | |
1373 | .ndo_set_mac_address = team_set_mac_address, | |
1374 | .ndo_change_mtu = team_change_mtu, | |
1375 | .ndo_get_stats64 = team_get_stats64, | |
1376 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, | |
1377 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, | |
1378 | .ndo_add_slave = team_add_slave, | |
1379 | .ndo_del_slave = team_del_slave, | |
234a8fd4 | 1380 | .ndo_fix_features = team_fix_features, |
3d249d4c JP |
1381 | }; |
1382 | ||
1383 | ||
1384 | /*********************** | |
1385 | * rt netlink interface | |
1386 | ***********************/ | |
1387 | ||
1388 | static void team_setup(struct net_device *dev) | |
1389 | { | |
1390 | ether_setup(dev); | |
1391 | ||
1392 | dev->netdev_ops = &team_netdev_ops; | |
1393 | dev->destructor = team_destructor; | |
1394 | dev->tx_queue_len = 0; | |
1395 | dev->flags |= IFF_MULTICAST; | |
1396 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); | |
1397 | ||
1398 | /* | |
1399 | * Indicate we support unicast address filtering. That way core won't | |
1400 | * bring us to promisc mode in case a unicast addr is added. | |
1401 | * Let this up to underlay drivers. | |
1402 | */ | |
5a1d1c8c | 1403 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
3d249d4c JP |
1404 | |
1405 | dev->features |= NETIF_F_LLTX; | |
1406 | dev->features |= NETIF_F_GRO; | |
1407 | dev->hw_features = NETIF_F_HW_VLAN_TX | | |
1408 | NETIF_F_HW_VLAN_RX | | |
1409 | NETIF_F_HW_VLAN_FILTER; | |
1410 | ||
1411 | dev->features |= dev->hw_features; | |
1412 | } | |
1413 | ||
1414 | static int team_newlink(struct net *src_net, struct net_device *dev, | |
1415 | struct nlattr *tb[], struct nlattr *data[]) | |
1416 | { | |
1417 | int err; | |
1418 | ||
1419 | if (tb[IFLA_ADDRESS] == NULL) | |
7ce5d222 | 1420 | eth_hw_addr_random(dev); |
3d249d4c JP |
1421 | |
1422 | err = register_netdevice(dev); | |
1423 | if (err) | |
1424 | return err; | |
1425 | ||
1426 | return 0; | |
1427 | } | |
1428 | ||
1429 | static int team_validate(struct nlattr *tb[], struct nlattr *data[]) | |
1430 | { | |
1431 | if (tb[IFLA_ADDRESS]) { | |
1432 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
1433 | return -EINVAL; | |
1434 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
1435 | return -EADDRNOTAVAIL; | |
1436 | } | |
1437 | return 0; | |
1438 | } | |
1439 | ||
1440 | static struct rtnl_link_ops team_link_ops __read_mostly = { | |
1441 | .kind = DRV_NAME, | |
1442 | .priv_size = sizeof(struct team), | |
1443 | .setup = team_setup, | |
1444 | .newlink = team_newlink, | |
1445 | .validate = team_validate, | |
1446 | }; | |
1447 | ||
1448 | ||
1449 | /*********************************** | |
1450 | * Generic netlink custom interface | |
1451 | ***********************************/ | |
1452 | ||
1453 | static struct genl_family team_nl_family = { | |
1454 | .id = GENL_ID_GENERATE, | |
1455 | .name = TEAM_GENL_NAME, | |
1456 | .version = TEAM_GENL_VERSION, | |
1457 | .maxattr = TEAM_ATTR_MAX, | |
1458 | .netnsok = true, | |
1459 | }; | |
1460 | ||
1461 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { | |
1462 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, | |
1463 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, | |
1464 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, | |
1465 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, | |
1466 | }; | |
1467 | ||
1468 | static const struct nla_policy | |
1469 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { | |
1470 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, | |
1471 | [TEAM_ATTR_OPTION_NAME] = { | |
1472 | .type = NLA_STRING, | |
1473 | .len = TEAM_STRING_MAX_LEN, | |
1474 | }, | |
1475 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, | |
1476 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, | |
2615598f | 1477 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
3d249d4c JP |
1478 | }; |
1479 | ||
1480 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) | |
1481 | { | |
1482 | struct sk_buff *msg; | |
1483 | void *hdr; | |
1484 | int err; | |
1485 | ||
58050fce | 1486 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
1487 | if (!msg) |
1488 | return -ENOMEM; | |
1489 | ||
1490 | hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, | |
1491 | &team_nl_family, 0, TEAM_CMD_NOOP); | |
1492 | if (IS_ERR(hdr)) { | |
1493 | err = PTR_ERR(hdr); | |
1494 | goto err_msg_put; | |
1495 | } | |
1496 | ||
1497 | genlmsg_end(msg, hdr); | |
1498 | ||
1499 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_pid); | |
1500 | ||
1501 | err_msg_put: | |
1502 | nlmsg_free(msg); | |
1503 | ||
1504 | return err; | |
1505 | } | |
1506 | ||
1507 | /* | |
1508 | * Netlink cmd functions should be locked by following two functions. | |
8c0713a5 | 1509 | * Since dev gets held here, that ensures dev won't disappear in between. |
3d249d4c JP |
1510 | */ |
1511 | static struct team *team_nl_team_get(struct genl_info *info) | |
1512 | { | |
1513 | struct net *net = genl_info_net(info); | |
1514 | int ifindex; | |
1515 | struct net_device *dev; | |
1516 | struct team *team; | |
1517 | ||
1518 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) | |
1519 | return NULL; | |
1520 | ||
1521 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); | |
8c0713a5 | 1522 | dev = dev_get_by_index(net, ifindex); |
3d249d4c | 1523 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
8c0713a5 JP |
1524 | if (dev) |
1525 | dev_put(dev); | |
3d249d4c JP |
1526 | return NULL; |
1527 | } | |
1528 | ||
1529 | team = netdev_priv(dev); | |
61dc3461 | 1530 | mutex_lock(&team->lock); |
3d249d4c JP |
1531 | return team; |
1532 | } | |
1533 | ||
1534 | static void team_nl_team_put(struct team *team) | |
1535 | { | |
61dc3461 | 1536 | mutex_unlock(&team->lock); |
8c0713a5 | 1537 | dev_put(team->dev); |
3d249d4c JP |
1538 | } |
1539 | ||
1540 | static int team_nl_send_generic(struct genl_info *info, struct team *team, | |
1541 | int (*fill_func)(struct sk_buff *skb, | |
1542 | struct genl_info *info, | |
1543 | int flags, struct team *team)) | |
1544 | { | |
1545 | struct sk_buff *skb; | |
1546 | int err; | |
1547 | ||
58050fce | 1548 | skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
1549 | if (!skb) |
1550 | return -ENOMEM; | |
1551 | ||
1552 | err = fill_func(skb, info, NLM_F_ACK, team); | |
1553 | if (err < 0) | |
1554 | goto err_fill; | |
1555 | ||
1556 | err = genlmsg_unicast(genl_info_net(info), skb, info->snd_pid); | |
1557 | return err; | |
1558 | ||
1559 | err_fill: | |
1560 | nlmsg_free(skb); | |
1561 | return err; | |
1562 | } | |
1563 | ||
9b00cf2d JP |
1564 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
1565 | struct team *team, u32 pid); | |
1566 | ||
1567 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 pid) | |
1568 | { | |
1569 | return genlmsg_unicast(dev_net(team->dev), skb, pid); | |
1570 | } | |
1571 | ||
01048d9a JP |
1572 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
1573 | struct team_option_inst *opt_inst) | |
1574 | { | |
1575 | struct nlattr *option_item; | |
1576 | struct team_option *option = opt_inst->option; | |
9b00cf2d | 1577 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
01048d9a JP |
1578 | struct team_gsetter_ctx ctx; |
1579 | int err; | |
1580 | ||
9b00cf2d JP |
1581 | ctx.info = opt_inst_info; |
1582 | err = team_option_get(team, opt_inst, &ctx); | |
1583 | if (err) | |
1584 | return err; | |
1585 | ||
01048d9a JP |
1586 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
1587 | if (!option_item) | |
9b00cf2d | 1588 | return -EMSGSIZE; |
01048d9a | 1589 | |
9b00cf2d JP |
1590 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
1591 | goto nest_cancel; | |
01048d9a JP |
1592 | if (opt_inst_info->port && |
1593 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, | |
1594 | opt_inst_info->port->dev->ifindex)) | |
9b00cf2d | 1595 | goto nest_cancel; |
01048d9a JP |
1596 | if (opt_inst->option->array_size && |
1597 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, | |
1598 | opt_inst_info->array_index)) | |
9b00cf2d | 1599 | goto nest_cancel; |
01048d9a JP |
1600 | |
1601 | switch (option->type) { | |
1602 | case TEAM_OPTION_TYPE_U32: | |
1603 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) | |
9b00cf2d | 1604 | goto nest_cancel; |
01048d9a | 1605 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
9b00cf2d | 1606 | goto nest_cancel; |
01048d9a JP |
1607 | break; |
1608 | case TEAM_OPTION_TYPE_STRING: | |
1609 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) | |
9b00cf2d | 1610 | goto nest_cancel; |
01048d9a JP |
1611 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
1612 | ctx.data.str_val)) | |
9b00cf2d | 1613 | goto nest_cancel; |
01048d9a JP |
1614 | break; |
1615 | case TEAM_OPTION_TYPE_BINARY: | |
1616 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) | |
9b00cf2d | 1617 | goto nest_cancel; |
01048d9a JP |
1618 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
1619 | ctx.data.bin_val.ptr)) | |
9b00cf2d | 1620 | goto nest_cancel; |
01048d9a JP |
1621 | break; |
1622 | case TEAM_OPTION_TYPE_BOOL: | |
1623 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) | |
9b00cf2d | 1624 | goto nest_cancel; |
01048d9a JP |
1625 | if (ctx.data.bool_val && |
1626 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) | |
9b00cf2d | 1627 | goto nest_cancel; |
01048d9a JP |
1628 | break; |
1629 | default: | |
1630 | BUG(); | |
1631 | } | |
9b00cf2d JP |
1632 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
1633 | goto nest_cancel; | |
1634 | if (opt_inst->changed) { | |
1635 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) | |
1636 | goto nest_cancel; | |
1637 | opt_inst->changed = false; | |
1638 | } | |
01048d9a JP |
1639 | nla_nest_end(skb, option_item); |
1640 | return 0; | |
1641 | ||
9b00cf2d JP |
1642 | nest_cancel: |
1643 | nla_nest_cancel(skb, option_item); | |
1644 | return -EMSGSIZE; | |
1645 | } | |
1646 | ||
1647 | static int __send_and_alloc_skb(struct sk_buff **pskb, | |
1648 | struct team *team, u32 pid, | |
1649 | team_nl_send_func_t *send_func) | |
1650 | { | |
1651 | int err; | |
1652 | ||
1653 | if (*pskb) { | |
1654 | err = send_func(*pskb, team, pid); | |
1655 | if (err) | |
1656 | return err; | |
1657 | } | |
58050fce | 1658 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9b00cf2d JP |
1659 | if (!*pskb) |
1660 | return -ENOMEM; | |
1661 | return 0; | |
01048d9a JP |
1662 | } |
1663 | ||
9b00cf2d JP |
1664 | static int team_nl_send_options_get(struct team *team, u32 pid, u32 seq, |
1665 | int flags, team_nl_send_func_t *send_func, | |
01048d9a | 1666 | struct list_head *sel_opt_inst_list) |
3d249d4c JP |
1667 | { |
1668 | struct nlattr *option_list; | |
9b00cf2d | 1669 | struct nlmsghdr *nlh; |
3d249d4c | 1670 | void *hdr; |
80f7c668 JP |
1671 | struct team_option_inst *opt_inst; |
1672 | int err; | |
9b00cf2d JP |
1673 | struct sk_buff *skb = NULL; |
1674 | bool incomplete; | |
1675 | int i; | |
3d249d4c | 1676 | |
9b00cf2d JP |
1677 | opt_inst = list_first_entry(sel_opt_inst_list, |
1678 | struct team_option_inst, tmp_list); | |
1679 | ||
1680 | start_again: | |
1681 | err = __send_and_alloc_skb(&skb, team, pid, send_func); | |
1682 | if (err) | |
1683 | return err; | |
1684 | ||
1685 | hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags | NLM_F_MULTI, | |
3d249d4c JP |
1686 | TEAM_CMD_OPTIONS_GET); |
1687 | if (IS_ERR(hdr)) | |
1688 | return PTR_ERR(hdr); | |
1689 | ||
86ebb02d DM |
1690 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
1691 | goto nla_put_failure; | |
3d249d4c JP |
1692 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
1693 | if (!option_list) | |
75db986a | 1694 | goto nla_put_failure; |
3d249d4c | 1695 | |
9b00cf2d JP |
1696 | i = 0; |
1697 | incomplete = false; | |
1698 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { | |
01048d9a | 1699 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
9b00cf2d JP |
1700 | if (err) { |
1701 | if (err == -EMSGSIZE) { | |
1702 | if (!i) | |
1703 | goto errout; | |
1704 | incomplete = true; | |
1705 | break; | |
1706 | } | |
01048d9a | 1707 | goto errout; |
9b00cf2d JP |
1708 | } |
1709 | i++; | |
3d249d4c JP |
1710 | } |
1711 | ||
1712 | nla_nest_end(skb, option_list); | |
9b00cf2d JP |
1713 | genlmsg_end(skb, hdr); |
1714 | if (incomplete) | |
1715 | goto start_again; | |
1716 | ||
1717 | send_done: | |
1718 | nlh = nlmsg_put(skb, pid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
1719 | if (!nlh) { | |
1720 | err = __send_and_alloc_skb(&skb, team, pid, send_func); | |
1721 | if (err) | |
1722 | goto errout; | |
1723 | goto send_done; | |
1724 | } | |
1725 | ||
1726 | return send_func(skb, team, pid); | |
3d249d4c JP |
1727 | |
1728 | nla_put_failure: | |
80f7c668 JP |
1729 | err = -EMSGSIZE; |
1730 | errout: | |
3d249d4c | 1731 | genlmsg_cancel(skb, hdr); |
9b00cf2d | 1732 | nlmsg_free(skb); |
80f7c668 | 1733 | return err; |
3d249d4c JP |
1734 | } |
1735 | ||
3d249d4c JP |
1736 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
1737 | { | |
1738 | struct team *team; | |
9b00cf2d | 1739 | struct team_option_inst *opt_inst; |
3d249d4c | 1740 | int err; |
9b00cf2d | 1741 | LIST_HEAD(sel_opt_inst_list); |
3d249d4c JP |
1742 | |
1743 | team = team_nl_team_get(info); | |
1744 | if (!team) | |
1745 | return -EINVAL; | |
1746 | ||
9b00cf2d JP |
1747 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
1748 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
1749 | err = team_nl_send_options_get(team, info->snd_pid, info->snd_seq, | |
1750 | NLM_F_ACK, team_nl_send_unicast, | |
1751 | &sel_opt_inst_list); | |
3d249d4c JP |
1752 | |
1753 | team_nl_team_put(team); | |
1754 | ||
1755 | return err; | |
1756 | } | |
1757 | ||
2fcdb2c9 JP |
1758 | static int team_nl_send_event_options_get(struct team *team, |
1759 | struct list_head *sel_opt_inst_list); | |
1760 | ||
3d249d4c JP |
1761 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
1762 | { | |
1763 | struct team *team; | |
1764 | int err = 0; | |
1765 | int i; | |
1766 | struct nlattr *nl_option; | |
2fcdb2c9 | 1767 | LIST_HEAD(opt_inst_list); |
3d249d4c JP |
1768 | |
1769 | team = team_nl_team_get(info); | |
1770 | if (!team) | |
1771 | return -EINVAL; | |
1772 | ||
1773 | err = -EINVAL; | |
1774 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { | |
1775 | err = -EINVAL; | |
1776 | goto team_put; | |
1777 | } | |
1778 | ||
1779 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { | |
80f7c668 | 1780 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
b1303326 | 1781 | struct nlattr *attr; |
14f066ba | 1782 | struct nlattr *attr_data; |
3d249d4c | 1783 | enum team_option_type opt_type; |
80f7c668 | 1784 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
b1303326 JP |
1785 | u32 opt_array_index = 0; |
1786 | bool opt_is_array = false; | |
80f7c668 | 1787 | struct team_option_inst *opt_inst; |
3d249d4c JP |
1788 | char *opt_name; |
1789 | bool opt_found = false; | |
1790 | ||
1791 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { | |
1792 | err = -EINVAL; | |
1793 | goto team_put; | |
1794 | } | |
80f7c668 | 1795 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
3d249d4c JP |
1796 | nl_option, team_nl_option_policy); |
1797 | if (err) | |
1798 | goto team_put; | |
80f7c668 | 1799 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
14f066ba | 1800 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
3d249d4c JP |
1801 | err = -EINVAL; |
1802 | goto team_put; | |
1803 | } | |
80f7c668 | 1804 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
3d249d4c JP |
1805 | case NLA_U32: |
1806 | opt_type = TEAM_OPTION_TYPE_U32; | |
1807 | break; | |
1808 | case NLA_STRING: | |
1809 | opt_type = TEAM_OPTION_TYPE_STRING; | |
1810 | break; | |
2615598f JP |
1811 | case NLA_BINARY: |
1812 | opt_type = TEAM_OPTION_TYPE_BINARY; | |
1813 | break; | |
14f066ba JP |
1814 | case NLA_FLAG: |
1815 | opt_type = TEAM_OPTION_TYPE_BOOL; | |
1816 | break; | |
3d249d4c JP |
1817 | default: |
1818 | goto team_put; | |
1819 | } | |
1820 | ||
14f066ba JP |
1821 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
1822 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { | |
1823 | err = -EINVAL; | |
1824 | goto team_put; | |
1825 | } | |
1826 | ||
80f7c668 | 1827 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
b1303326 JP |
1828 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
1829 | if (attr) | |
1830 | opt_port_ifindex = nla_get_u32(attr); | |
1831 | ||
1832 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; | |
1833 | if (attr) { | |
1834 | opt_is_array = true; | |
1835 | opt_array_index = nla_get_u32(attr); | |
1836 | } | |
80f7c668 JP |
1837 | |
1838 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
1839 | struct team_option *option = opt_inst->option; | |
80f7c668 | 1840 | struct team_gsetter_ctx ctx; |
85d59a87 | 1841 | struct team_option_inst_info *opt_inst_info; |
80f7c668 | 1842 | int tmp_ifindex; |
3d249d4c | 1843 | |
85d59a87 JP |
1844 | opt_inst_info = &opt_inst->info; |
1845 | tmp_ifindex = opt_inst_info->port ? | |
1846 | opt_inst_info->port->dev->ifindex : 0; | |
3d249d4c | 1847 | if (option->type != opt_type || |
80f7c668 | 1848 | strcmp(option->name, opt_name) || |
b1303326 JP |
1849 | tmp_ifindex != opt_port_ifindex || |
1850 | (option->array_size && !opt_is_array) || | |
85d59a87 | 1851 | opt_inst_info->array_index != opt_array_index) |
3d249d4c JP |
1852 | continue; |
1853 | opt_found = true; | |
85d59a87 | 1854 | ctx.info = opt_inst_info; |
3d249d4c JP |
1855 | switch (opt_type) { |
1856 | case TEAM_OPTION_TYPE_U32: | |
14f066ba | 1857 | ctx.data.u32_val = nla_get_u32(attr_data); |
3d249d4c JP |
1858 | break; |
1859 | case TEAM_OPTION_TYPE_STRING: | |
14f066ba | 1860 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
2615598f JP |
1861 | err = -EINVAL; |
1862 | goto team_put; | |
1863 | } | |
14f066ba | 1864 | ctx.data.str_val = nla_data(attr_data); |
3d249d4c | 1865 | break; |
2615598f | 1866 | case TEAM_OPTION_TYPE_BINARY: |
14f066ba JP |
1867 | ctx.data.bin_val.len = nla_len(attr_data); |
1868 | ctx.data.bin_val.ptr = nla_data(attr_data); | |
1869 | break; | |
1870 | case TEAM_OPTION_TYPE_BOOL: | |
1871 | ctx.data.bool_val = attr_data ? true : false; | |
2615598f | 1872 | break; |
3d249d4c JP |
1873 | default: |
1874 | BUG(); | |
1875 | } | |
80f7c668 | 1876 | err = team_option_set(team, opt_inst, &ctx); |
3d249d4c JP |
1877 | if (err) |
1878 | goto team_put; | |
2fcdb2c9 JP |
1879 | opt_inst->changed = true; |
1880 | list_add(&opt_inst->tmp_list, &opt_inst_list); | |
3d249d4c JP |
1881 | } |
1882 | if (!opt_found) { | |
1883 | err = -ENOENT; | |
1884 | goto team_put; | |
1885 | } | |
1886 | } | |
1887 | ||
2fcdb2c9 JP |
1888 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
1889 | ||
3d249d4c JP |
1890 | team_put: |
1891 | team_nl_team_put(team); | |
1892 | ||
1893 | return err; | |
1894 | } | |
1895 | ||
b82b9183 JP |
1896 | static int team_nl_fill_port_list_get(struct sk_buff *skb, |
1897 | u32 pid, u32 seq, int flags, | |
1898 | struct team *team, | |
1899 | bool fillall) | |
3d249d4c JP |
1900 | { |
1901 | struct nlattr *port_list; | |
1902 | void *hdr; | |
1903 | struct team_port *port; | |
1904 | ||
1905 | hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags, | |
1906 | TEAM_CMD_PORT_LIST_GET); | |
1907 | if (IS_ERR(hdr)) | |
1908 | return PTR_ERR(hdr); | |
1909 | ||
86ebb02d DM |
1910 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
1911 | goto nla_put_failure; | |
3d249d4c JP |
1912 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
1913 | if (!port_list) | |
3221c646 | 1914 | goto nla_put_failure; |
3d249d4c JP |
1915 | |
1916 | list_for_each_entry(port, &team->port_list, list) { | |
1917 | struct nlattr *port_item; | |
1918 | ||
b82b9183 JP |
1919 | /* Include only changed ports if fill all mode is not on */ |
1920 | if (!fillall && !port->changed) | |
1921 | continue; | |
3d249d4c JP |
1922 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); |
1923 | if (!port_item) | |
1924 | goto nla_put_failure; | |
86ebb02d DM |
1925 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) |
1926 | goto nla_put_failure; | |
b82b9183 | 1927 | if (port->changed) { |
86ebb02d DM |
1928 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) |
1929 | goto nla_put_failure; | |
b82b9183 JP |
1930 | port->changed = false; |
1931 | } | |
86ebb02d DM |
1932 | if ((port->removed && |
1933 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || | |
71472ec1 | 1934 | (port->state.linkup && |
86ebb02d | 1935 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || |
71472ec1 JP |
1936 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || |
1937 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) | |
86ebb02d | 1938 | goto nla_put_failure; |
3d249d4c JP |
1939 | nla_nest_end(skb, port_item); |
1940 | } | |
1941 | ||
1942 | nla_nest_end(skb, port_list); | |
1943 | return genlmsg_end(skb, hdr); | |
1944 | ||
1945 | nla_put_failure: | |
1946 | genlmsg_cancel(skb, hdr); | |
1947 | return -EMSGSIZE; | |
1948 | } | |
1949 | ||
b82b9183 JP |
1950 | static int team_nl_fill_port_list_get_all(struct sk_buff *skb, |
1951 | struct genl_info *info, int flags, | |
1952 | struct team *team) | |
3d249d4c | 1953 | { |
b82b9183 JP |
1954 | return team_nl_fill_port_list_get(skb, info->snd_pid, |
1955 | info->snd_seq, NLM_F_ACK, | |
1956 | team, true); | |
3d249d4c JP |
1957 | } |
1958 | ||
1959 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, | |
1960 | struct genl_info *info) | |
1961 | { | |
1962 | struct team *team; | |
1963 | int err; | |
1964 | ||
1965 | team = team_nl_team_get(info); | |
1966 | if (!team) | |
1967 | return -EINVAL; | |
1968 | ||
b82b9183 | 1969 | err = team_nl_send_generic(info, team, team_nl_fill_port_list_get_all); |
3d249d4c JP |
1970 | |
1971 | team_nl_team_put(team); | |
1972 | ||
1973 | return err; | |
1974 | } | |
1975 | ||
1976 | static struct genl_ops team_nl_ops[] = { | |
1977 | { | |
1978 | .cmd = TEAM_CMD_NOOP, | |
1979 | .doit = team_nl_cmd_noop, | |
1980 | .policy = team_nl_policy, | |
1981 | }, | |
1982 | { | |
1983 | .cmd = TEAM_CMD_OPTIONS_SET, | |
1984 | .doit = team_nl_cmd_options_set, | |
1985 | .policy = team_nl_policy, | |
1986 | .flags = GENL_ADMIN_PERM, | |
1987 | }, | |
1988 | { | |
1989 | .cmd = TEAM_CMD_OPTIONS_GET, | |
1990 | .doit = team_nl_cmd_options_get, | |
1991 | .policy = team_nl_policy, | |
1992 | .flags = GENL_ADMIN_PERM, | |
1993 | }, | |
1994 | { | |
1995 | .cmd = TEAM_CMD_PORT_LIST_GET, | |
1996 | .doit = team_nl_cmd_port_list_get, | |
1997 | .policy = team_nl_policy, | |
1998 | .flags = GENL_ADMIN_PERM, | |
1999 | }, | |
2000 | }; | |
2001 | ||
2002 | static struct genl_multicast_group team_change_event_mcgrp = { | |
2003 | .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, | |
2004 | }; | |
2005 | ||
9b00cf2d JP |
2006 | static int team_nl_send_multicast(struct sk_buff *skb, |
2007 | struct team *team, u32 pid) | |
2008 | { | |
2009 | return genlmsg_multicast_netns(dev_net(team->dev), skb, 0, | |
2010 | team_change_event_mcgrp.id, GFP_KERNEL); | |
2011 | } | |
2012 | ||
01048d9a JP |
2013 | static int team_nl_send_event_options_get(struct team *team, |
2014 | struct list_head *sel_opt_inst_list) | |
3d249d4c | 2015 | { |
9b00cf2d JP |
2016 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
2017 | sel_opt_inst_list); | |
3d249d4c JP |
2018 | } |
2019 | ||
b82b9183 | 2020 | static int team_nl_send_event_port_list_get(struct team *team) |
3d249d4c JP |
2021 | { |
2022 | struct sk_buff *skb; | |
2023 | int err; | |
b82b9183 | 2024 | struct net *net = dev_net(team->dev); |
3d249d4c | 2025 | |
58050fce | 2026 | skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
2027 | if (!skb) |
2028 | return -ENOMEM; | |
2029 | ||
b82b9183 | 2030 | err = team_nl_fill_port_list_get(skb, 0, 0, 0, team, false); |
3d249d4c JP |
2031 | if (err < 0) |
2032 | goto err_fill; | |
2033 | ||
2034 | err = genlmsg_multicast_netns(net, skb, 0, team_change_event_mcgrp.id, | |
2035 | GFP_KERNEL); | |
2036 | return err; | |
2037 | ||
2038 | err_fill: | |
2039 | nlmsg_free(skb); | |
2040 | return err; | |
2041 | } | |
2042 | ||
2043 | static int team_nl_init(void) | |
2044 | { | |
2045 | int err; | |
2046 | ||
2047 | err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, | |
2048 | ARRAY_SIZE(team_nl_ops)); | |
2049 | if (err) | |
2050 | return err; | |
2051 | ||
2052 | err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); | |
2053 | if (err) | |
2054 | goto err_change_event_grp_reg; | |
2055 | ||
2056 | return 0; | |
2057 | ||
2058 | err_change_event_grp_reg: | |
2059 | genl_unregister_family(&team_nl_family); | |
2060 | ||
2061 | return err; | |
2062 | } | |
2063 | ||
2064 | static void team_nl_fini(void) | |
2065 | { | |
2066 | genl_unregister_family(&team_nl_family); | |
2067 | } | |
2068 | ||
2069 | ||
2070 | /****************** | |
2071 | * Change checkers | |
2072 | ******************/ | |
2073 | ||
b82b9183 | 2074 | static void __team_options_change_check(struct team *team) |
3d249d4c JP |
2075 | { |
2076 | int err; | |
01048d9a JP |
2077 | struct team_option_inst *opt_inst; |
2078 | LIST_HEAD(sel_opt_inst_list); | |
3d249d4c | 2079 | |
01048d9a JP |
2080 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
2081 | if (opt_inst->changed) | |
2082 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
2083 | } | |
2084 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); | |
3d249d4c | 2085 | if (err) |
9b00cf2d JP |
2086 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
2087 | err); | |
3d249d4c JP |
2088 | } |
2089 | ||
2090 | /* rtnl lock is held */ | |
2091 | static void __team_port_change_check(struct team_port *port, bool linkup) | |
2092 | { | |
2093 | int err; | |
2094 | ||
71472ec1 | 2095 | if (!port->removed && port->state.linkup == linkup) |
3d249d4c JP |
2096 | return; |
2097 | ||
b82b9183 | 2098 | port->changed = true; |
71472ec1 JP |
2099 | port->state.linkup = linkup; |
2100 | team_refresh_port_linkup(port); | |
3d249d4c JP |
2101 | if (linkup) { |
2102 | struct ethtool_cmd ecmd; | |
2103 | ||
2104 | err = __ethtool_get_settings(port->dev, &ecmd); | |
2105 | if (!err) { | |
71472ec1 JP |
2106 | port->state.speed = ethtool_cmd_speed(&ecmd); |
2107 | port->state.duplex = ecmd.duplex; | |
3d249d4c JP |
2108 | goto send_event; |
2109 | } | |
2110 | } | |
71472ec1 JP |
2111 | port->state.speed = 0; |
2112 | port->state.duplex = 0; | |
3d249d4c JP |
2113 | |
2114 | send_event: | |
b82b9183 | 2115 | err = team_nl_send_event_port_list_get(port->team); |
3d249d4c JP |
2116 | if (err) |
2117 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink\n", | |
2118 | port->dev->name); | |
2119 | ||
2120 | } | |
2121 | ||
2122 | static void team_port_change_check(struct team_port *port, bool linkup) | |
2123 | { | |
2124 | struct team *team = port->team; | |
2125 | ||
61dc3461 | 2126 | mutex_lock(&team->lock); |
3d249d4c | 2127 | __team_port_change_check(port, linkup); |
61dc3461 | 2128 | mutex_unlock(&team->lock); |
3d249d4c JP |
2129 | } |
2130 | ||
0f1aad2b | 2131 | |
3d249d4c JP |
2132 | /************************************ |
2133 | * Net device notifier event handler | |
2134 | ************************************/ | |
2135 | ||
2136 | static int team_device_event(struct notifier_block *unused, | |
2137 | unsigned long event, void *ptr) | |
2138 | { | |
2139 | struct net_device *dev = (struct net_device *) ptr; | |
2140 | struct team_port *port; | |
2141 | ||
2142 | port = team_port_get_rtnl(dev); | |
2143 | if (!port) | |
2144 | return NOTIFY_DONE; | |
2145 | ||
2146 | switch (event) { | |
2147 | case NETDEV_UP: | |
2148 | if (netif_carrier_ok(dev)) | |
2149 | team_port_change_check(port, true); | |
2150 | case NETDEV_DOWN: | |
2151 | team_port_change_check(port, false); | |
2152 | case NETDEV_CHANGE: | |
2153 | if (netif_running(port->dev)) | |
2154 | team_port_change_check(port, | |
2155 | !!netif_carrier_ok(port->dev)); | |
2156 | break; | |
2157 | case NETDEV_UNREGISTER: | |
2158 | team_del_slave(port->team->dev, dev); | |
2159 | break; | |
2160 | case NETDEV_FEAT_CHANGE: | |
2161 | team_compute_features(port->team); | |
2162 | break; | |
2163 | case NETDEV_CHANGEMTU: | |
2164 | /* Forbid to change mtu of underlaying device */ | |
2165 | return NOTIFY_BAD; | |
2166 | case NETDEV_PRE_TYPE_CHANGE: | |
2167 | /* Forbid to change type of underlaying device */ | |
2168 | return NOTIFY_BAD; | |
2169 | } | |
2170 | return NOTIFY_DONE; | |
2171 | } | |
2172 | ||
2173 | static struct notifier_block team_notifier_block __read_mostly = { | |
2174 | .notifier_call = team_device_event, | |
2175 | }; | |
2176 | ||
2177 | ||
2178 | /*********************** | |
2179 | * Module init and exit | |
2180 | ***********************/ | |
2181 | ||
2182 | static int __init team_module_init(void) | |
2183 | { | |
2184 | int err; | |
2185 | ||
2186 | register_netdevice_notifier(&team_notifier_block); | |
2187 | ||
2188 | err = rtnl_link_register(&team_link_ops); | |
2189 | if (err) | |
2190 | goto err_rtnl_reg; | |
2191 | ||
2192 | err = team_nl_init(); | |
2193 | if (err) | |
2194 | goto err_nl_init; | |
2195 | ||
2196 | return 0; | |
2197 | ||
2198 | err_nl_init: | |
2199 | rtnl_link_unregister(&team_link_ops); | |
2200 | ||
2201 | err_rtnl_reg: | |
2202 | unregister_netdevice_notifier(&team_notifier_block); | |
2203 | ||
2204 | return err; | |
2205 | } | |
2206 | ||
2207 | static void __exit team_module_exit(void) | |
2208 | { | |
2209 | team_nl_fini(); | |
2210 | rtnl_link_unregister(&team_link_ops); | |
2211 | unregister_netdevice_notifier(&team_notifier_block); | |
2212 | } | |
2213 | ||
2214 | module_init(team_module_init); | |
2215 | module_exit(team_module_exit); | |
2216 | ||
2217 | MODULE_LICENSE("GPL v2"); | |
2218 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
2219 | MODULE_DESCRIPTION("Ethernet team device driver"); | |
2220 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |