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> | |
bd2d0837 | 21 | #include <linux/netpoll.h> |
87002b03 | 22 | #include <linux/if_vlan.h> |
3d249d4c JP |
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> | |
6c85f2bd | 30 | #include <net/sch_generic.h> |
7f51c587 | 31 | #include <generated/utsrelease.h> |
3d249d4c JP |
32 | #include <linux/if_team.h> |
33 | ||
34 | #define DRV_NAME "team" | |
35 | ||
36 | ||
37 | /********** | |
38 | * Helpers | |
39 | **********/ | |
40 | ||
41 | #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) | |
42 | ||
43 | static struct team_port *team_port_get_rcu(const struct net_device *dev) | |
44 | { | |
45 | struct team_port *port = rcu_dereference(dev->rx_handler_data); | |
46 | ||
47 | return team_port_exists(dev) ? port : NULL; | |
48 | } | |
49 | ||
50 | static struct team_port *team_port_get_rtnl(const struct net_device *dev) | |
51 | { | |
52 | struct team_port *port = rtnl_dereference(dev->rx_handler_data); | |
53 | ||
54 | return team_port_exists(dev) ? port : NULL; | |
55 | } | |
56 | ||
57 | /* | |
1d76efe1 | 58 | * Since the ability to change device address for open port device is tested in |
3d249d4c JP |
59 | * team_port_add, this function can be called without control of return value |
60 | */ | |
1d76efe1 JP |
61 | static int __set_port_dev_addr(struct net_device *port_dev, |
62 | const unsigned char *dev_addr) | |
3d249d4c JP |
63 | { |
64 | struct sockaddr addr; | |
65 | ||
1d76efe1 JP |
66 | memcpy(addr.sa_data, dev_addr, port_dev->addr_len); |
67 | addr.sa_family = port_dev->type; | |
3d249d4c JP |
68 | return dev_set_mac_address(port_dev, &addr); |
69 | } | |
70 | ||
1d76efe1 | 71 | static int team_port_set_orig_dev_addr(struct team_port *port) |
3d249d4c | 72 | { |
1d76efe1 | 73 | return __set_port_dev_addr(port->dev, port->orig.dev_addr); |
3d249d4c JP |
74 | } |
75 | ||
acbba0d0 JP |
76 | static int team_port_set_team_dev_addr(struct team *team, |
77 | struct team_port *port) | |
3d249d4c | 78 | { |
acbba0d0 | 79 | return __set_port_dev_addr(port->dev, team->dev->dev_addr); |
3d249d4c | 80 | } |
acbba0d0 JP |
81 | |
82 | int team_modeop_port_enter(struct team *team, struct team_port *port) | |
83 | { | |
84 | return team_port_set_team_dev_addr(team, port); | |
85 | } | |
86 | EXPORT_SYMBOL(team_modeop_port_enter); | |
87 | ||
88 | void team_modeop_port_change_dev_addr(struct team *team, | |
89 | struct team_port *port) | |
90 | { | |
91 | team_port_set_team_dev_addr(team, port); | |
92 | } | |
93 | EXPORT_SYMBOL(team_modeop_port_change_dev_addr); | |
3d249d4c | 94 | |
71472ec1 JP |
95 | static void team_refresh_port_linkup(struct team_port *port) |
96 | { | |
97 | port->linkup = port->user.linkup_enabled ? port->user.linkup : | |
98 | port->state.linkup; | |
99 | } | |
3d249d4c | 100 | |
0f1aad2b | 101 | |
3d249d4c JP |
102 | /******************* |
103 | * Options handling | |
104 | *******************/ | |
105 | ||
80f7c668 JP |
106 | struct team_option_inst { /* One for each option instance */ |
107 | struct list_head list; | |
01048d9a | 108 | struct list_head tmp_list; |
80f7c668 | 109 | struct team_option *option; |
85d59a87 | 110 | struct team_option_inst_info info; |
80f7c668 JP |
111 | bool changed; |
112 | bool removed; | |
113 | }; | |
114 | ||
115 | static struct team_option *__team_find_option(struct team *team, | |
116 | const char *opt_name) | |
358b8382 JP |
117 | { |
118 | struct team_option *option; | |
119 | ||
120 | list_for_each_entry(option, &team->option_list, list) { | |
121 | if (strcmp(option->name, opt_name) == 0) | |
122 | return option; | |
123 | } | |
124 | return NULL; | |
125 | } | |
126 | ||
80f7c668 JP |
127 | static void __team_option_inst_del(struct team_option_inst *opt_inst) |
128 | { | |
129 | list_del(&opt_inst->list); | |
130 | kfree(opt_inst); | |
131 | } | |
132 | ||
133 | static void __team_option_inst_del_option(struct team *team, | |
134 | struct team_option *option) | |
135 | { | |
136 | struct team_option_inst *opt_inst, *tmp; | |
137 | ||
138 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
139 | if (opt_inst->option == option) | |
140 | __team_option_inst_del(opt_inst); | |
141 | } | |
142 | } | |
143 | ||
b1303326 JP |
144 | static int __team_option_inst_add(struct team *team, struct team_option *option, |
145 | struct team_port *port) | |
146 | { | |
147 | struct team_option_inst *opt_inst; | |
148 | unsigned int array_size; | |
149 | unsigned int i; | |
85d59a87 | 150 | int err; |
b1303326 JP |
151 | |
152 | array_size = option->array_size; | |
153 | if (!array_size) | |
154 | array_size = 1; /* No array but still need one instance */ | |
155 | ||
156 | for (i = 0; i < array_size; i++) { | |
157 | opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); | |
158 | if (!opt_inst) | |
159 | return -ENOMEM; | |
160 | opt_inst->option = option; | |
85d59a87 JP |
161 | opt_inst->info.port = port; |
162 | opt_inst->info.array_index = i; | |
b1303326 JP |
163 | opt_inst->changed = true; |
164 | opt_inst->removed = false; | |
165 | list_add_tail(&opt_inst->list, &team->option_inst_list); | |
85d59a87 JP |
166 | if (option->init) { |
167 | err = option->init(team, &opt_inst->info); | |
168 | if (err) | |
169 | return err; | |
170 | } | |
171 | ||
b1303326 JP |
172 | } |
173 | return 0; | |
174 | } | |
175 | ||
80f7c668 JP |
176 | static int __team_option_inst_add_option(struct team *team, |
177 | struct team_option *option) | |
178 | { | |
179 | struct team_port *port; | |
180 | int err; | |
181 | ||
b1303326 | 182 | if (!option->per_port) { |
f88725ff | 183 | err = __team_option_inst_add(team, option, NULL); |
b1303326 JP |
184 | if (err) |
185 | goto inst_del_option; | |
186 | } | |
80f7c668 JP |
187 | |
188 | list_for_each_entry(port, &team->port_list, list) { | |
189 | err = __team_option_inst_add(team, option, port); | |
190 | if (err) | |
191 | goto inst_del_option; | |
192 | } | |
193 | return 0; | |
194 | ||
195 | inst_del_option: | |
196 | __team_option_inst_del_option(team, option); | |
197 | return err; | |
198 | } | |
199 | ||
200 | static void __team_option_inst_mark_removed_option(struct team *team, | |
201 | struct team_option *option) | |
202 | { | |
203 | struct team_option_inst *opt_inst; | |
204 | ||
205 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
206 | if (opt_inst->option == option) { | |
207 | opt_inst->changed = true; | |
208 | opt_inst->removed = true; | |
209 | } | |
210 | } | |
211 | } | |
212 | ||
213 | static void __team_option_inst_del_port(struct team *team, | |
214 | struct team_port *port) | |
215 | { | |
216 | struct team_option_inst *opt_inst, *tmp; | |
217 | ||
218 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
219 | if (opt_inst->option->per_port && | |
85d59a87 | 220 | opt_inst->info.port == port) |
80f7c668 JP |
221 | __team_option_inst_del(opt_inst); |
222 | } | |
223 | } | |
224 | ||
225 | static int __team_option_inst_add_port(struct team *team, | |
226 | struct team_port *port) | |
227 | { | |
228 | struct team_option *option; | |
229 | int err; | |
230 | ||
231 | list_for_each_entry(option, &team->option_list, list) { | |
232 | if (!option->per_port) | |
233 | continue; | |
234 | err = __team_option_inst_add(team, option, port); | |
235 | if (err) | |
236 | goto inst_del_port; | |
237 | } | |
238 | return 0; | |
239 | ||
240 | inst_del_port: | |
241 | __team_option_inst_del_port(team, port); | |
242 | return err; | |
243 | } | |
244 | ||
245 | static void __team_option_inst_mark_removed_port(struct team *team, | |
246 | struct team_port *port) | |
247 | { | |
248 | struct team_option_inst *opt_inst; | |
249 | ||
250 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
85d59a87 | 251 | if (opt_inst->info.port == port) { |
80f7c668 JP |
252 | opt_inst->changed = true; |
253 | opt_inst->removed = true; | |
254 | } | |
255 | } | |
256 | } | |
257 | ||
258 | static int __team_options_register(struct team *team, | |
259 | const struct team_option *option, | |
260 | size_t option_count) | |
3d249d4c JP |
261 | { |
262 | int i; | |
2bba19ff | 263 | struct team_option **dst_opts; |
358b8382 | 264 | int err; |
3d249d4c | 265 | |
2bba19ff JP |
266 | dst_opts = kzalloc(sizeof(struct team_option *) * option_count, |
267 | GFP_KERNEL); | |
268 | if (!dst_opts) | |
269 | return -ENOMEM; | |
358b8382 | 270 | for (i = 0; i < option_count; i++, option++) { |
358b8382 JP |
271 | if (__team_find_option(team, option->name)) { |
272 | err = -EEXIST; | |
80f7c668 | 273 | goto alloc_rollback; |
358b8382 | 274 | } |
f8a15af0 JP |
275 | dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); |
276 | if (!dst_opts[i]) { | |
358b8382 | 277 | err = -ENOMEM; |
80f7c668 | 278 | goto alloc_rollback; |
358b8382 | 279 | } |
358b8382 JP |
280 | } |
281 | ||
b82b9183 | 282 | for (i = 0; i < option_count; i++) { |
80f7c668 JP |
283 | err = __team_option_inst_add_option(team, dst_opts[i]); |
284 | if (err) | |
285 | goto inst_rollback; | |
358b8382 | 286 | list_add_tail(&dst_opts[i]->list, &team->option_list); |
b82b9183 | 287 | } |
358b8382 | 288 | |
2bba19ff | 289 | kfree(dst_opts); |
358b8382 JP |
290 | return 0; |
291 | ||
80f7c668 JP |
292 | inst_rollback: |
293 | for (i--; i >= 0; i--) | |
294 | __team_option_inst_del_option(team, dst_opts[i]); | |
295 | ||
296 | i = option_count - 1; | |
297 | alloc_rollback: | |
298 | for (i--; i >= 0; i--) | |
358b8382 JP |
299 | kfree(dst_opts[i]); |
300 | ||
2bba19ff | 301 | kfree(dst_opts); |
358b8382 | 302 | return err; |
3d249d4c | 303 | } |
358b8382 | 304 | |
b82b9183 JP |
305 | static void __team_options_mark_removed(struct team *team, |
306 | const struct team_option *option, | |
307 | size_t option_count) | |
308 | { | |
309 | int i; | |
310 | ||
311 | for (i = 0; i < option_count; i++, option++) { | |
312 | struct team_option *del_opt; | |
3d249d4c | 313 | |
b82b9183 | 314 | del_opt = __team_find_option(team, option->name); |
80f7c668 JP |
315 | if (del_opt) |
316 | __team_option_inst_mark_removed_option(team, del_opt); | |
b82b9183 JP |
317 | } |
318 | } | |
3d249d4c JP |
319 | |
320 | static void __team_options_unregister(struct team *team, | |
358b8382 | 321 | const struct team_option *option, |
3d249d4c JP |
322 | size_t option_count) |
323 | { | |
324 | int i; | |
325 | ||
358b8382 JP |
326 | for (i = 0; i < option_count; i++, option++) { |
327 | struct team_option *del_opt; | |
328 | ||
329 | del_opt = __team_find_option(team, option->name); | |
330 | if (del_opt) { | |
80f7c668 | 331 | __team_option_inst_del_option(team, del_opt); |
358b8382 JP |
332 | list_del(&del_opt->list); |
333 | kfree(del_opt); | |
334 | } | |
335 | } | |
3d249d4c JP |
336 | } |
337 | ||
b82b9183 JP |
338 | static void __team_options_change_check(struct team *team); |
339 | ||
340 | int team_options_register(struct team *team, | |
341 | const struct team_option *option, | |
342 | size_t option_count) | |
343 | { | |
344 | int err; | |
345 | ||
346 | err = __team_options_register(team, option, option_count); | |
347 | if (err) | |
348 | return err; | |
349 | __team_options_change_check(team); | |
350 | return 0; | |
351 | } | |
352 | EXPORT_SYMBOL(team_options_register); | |
353 | ||
358b8382 JP |
354 | void team_options_unregister(struct team *team, |
355 | const struct team_option *option, | |
3d249d4c JP |
356 | size_t option_count) |
357 | { | |
b82b9183 JP |
358 | __team_options_mark_removed(team, option, option_count); |
359 | __team_options_change_check(team); | |
3d249d4c | 360 | __team_options_unregister(team, option, option_count); |
3d249d4c JP |
361 | } |
362 | EXPORT_SYMBOL(team_options_unregister); | |
363 | ||
80f7c668 JP |
364 | static int team_option_get(struct team *team, |
365 | struct team_option_inst *opt_inst, | |
366 | struct team_gsetter_ctx *ctx) | |
367 | { | |
f82b959d JP |
368 | if (!opt_inst->option->getter) |
369 | return -EOPNOTSUPP; | |
80f7c668 JP |
370 | return opt_inst->option->getter(team, ctx); |
371 | } | |
372 | ||
373 | static int team_option_set(struct team *team, | |
374 | struct team_option_inst *opt_inst, | |
375 | struct team_gsetter_ctx *ctx) | |
3d249d4c | 376 | { |
f82b959d JP |
377 | if (!opt_inst->option->setter) |
378 | return -EOPNOTSUPP; | |
2fcdb2c9 | 379 | return opt_inst->option->setter(team, ctx); |
3d249d4c JP |
380 | } |
381 | ||
0f1aad2b JP |
382 | void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) |
383 | { | |
384 | struct team_option_inst *opt_inst; | |
385 | ||
386 | opt_inst = container_of(opt_inst_info, struct team_option_inst, info); | |
387 | opt_inst->changed = true; | |
388 | } | |
389 | EXPORT_SYMBOL(team_option_inst_set_change); | |
390 | ||
391 | void team_options_change_check(struct team *team) | |
392 | { | |
393 | __team_options_change_check(team); | |
394 | } | |
395 | EXPORT_SYMBOL(team_options_change_check); | |
396 | ||
397 | ||
3d249d4c JP |
398 | /**************** |
399 | * Mode handling | |
400 | ****************/ | |
401 | ||
402 | static LIST_HEAD(mode_list); | |
403 | static DEFINE_SPINLOCK(mode_list_lock); | |
404 | ||
0402788a JP |
405 | struct team_mode_item { |
406 | struct list_head list; | |
407 | const struct team_mode *mode; | |
408 | }; | |
409 | ||
410 | static struct team_mode_item *__find_mode(const char *kind) | |
3d249d4c | 411 | { |
0402788a | 412 | struct team_mode_item *mitem; |
3d249d4c | 413 | |
0402788a JP |
414 | list_for_each_entry(mitem, &mode_list, list) { |
415 | if (strcmp(mitem->mode->kind, kind) == 0) | |
416 | return mitem; | |
3d249d4c JP |
417 | } |
418 | return NULL; | |
419 | } | |
420 | ||
421 | static bool is_good_mode_name(const char *name) | |
422 | { | |
423 | while (*name != '\0') { | |
424 | if (!isalpha(*name) && !isdigit(*name) && *name != '_') | |
425 | return false; | |
426 | name++; | |
427 | } | |
428 | return true; | |
429 | } | |
430 | ||
0402788a | 431 | int team_mode_register(const struct team_mode *mode) |
3d249d4c JP |
432 | { |
433 | int err = 0; | |
0402788a | 434 | struct team_mode_item *mitem; |
3d249d4c JP |
435 | |
436 | if (!is_good_mode_name(mode->kind) || | |
437 | mode->priv_size > TEAM_MODE_PRIV_SIZE) | |
438 | return -EINVAL; | |
0402788a JP |
439 | |
440 | mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); | |
441 | if (!mitem) | |
442 | return -ENOMEM; | |
443 | ||
3d249d4c JP |
444 | spin_lock(&mode_list_lock); |
445 | if (__find_mode(mode->kind)) { | |
446 | err = -EEXIST; | |
0402788a | 447 | kfree(mitem); |
3d249d4c JP |
448 | goto unlock; |
449 | } | |
0402788a JP |
450 | mitem->mode = mode; |
451 | list_add_tail(&mitem->list, &mode_list); | |
3d249d4c JP |
452 | unlock: |
453 | spin_unlock(&mode_list_lock); | |
454 | return err; | |
455 | } | |
456 | EXPORT_SYMBOL(team_mode_register); | |
457 | ||
0402788a | 458 | void team_mode_unregister(const struct team_mode *mode) |
3d249d4c | 459 | { |
0402788a JP |
460 | struct team_mode_item *mitem; |
461 | ||
3d249d4c | 462 | spin_lock(&mode_list_lock); |
0402788a JP |
463 | mitem = __find_mode(mode->kind); |
464 | if (mitem) { | |
465 | list_del_init(&mitem->list); | |
466 | kfree(mitem); | |
467 | } | |
3d249d4c | 468 | spin_unlock(&mode_list_lock); |
3d249d4c JP |
469 | } |
470 | EXPORT_SYMBOL(team_mode_unregister); | |
471 | ||
0402788a | 472 | static const struct team_mode *team_mode_get(const char *kind) |
3d249d4c | 473 | { |
0402788a JP |
474 | struct team_mode_item *mitem; |
475 | const struct team_mode *mode = NULL; | |
3d249d4c JP |
476 | |
477 | spin_lock(&mode_list_lock); | |
0402788a JP |
478 | mitem = __find_mode(kind); |
479 | if (!mitem) { | |
3d249d4c JP |
480 | spin_unlock(&mode_list_lock); |
481 | request_module("team-mode-%s", kind); | |
482 | spin_lock(&mode_list_lock); | |
0402788a | 483 | mitem = __find_mode(kind); |
3d249d4c | 484 | } |
0402788a JP |
485 | if (mitem) { |
486 | mode = mitem->mode; | |
3d249d4c JP |
487 | if (!try_module_get(mode->owner)) |
488 | mode = NULL; | |
0402788a | 489 | } |
3d249d4c JP |
490 | |
491 | spin_unlock(&mode_list_lock); | |
492 | return mode; | |
493 | } | |
494 | ||
495 | static void team_mode_put(const struct team_mode *mode) | |
496 | { | |
497 | module_put(mode->owner); | |
498 | } | |
499 | ||
500 | static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) | |
501 | { | |
502 | dev_kfree_skb_any(skb); | |
503 | return false; | |
504 | } | |
505 | ||
2ea46599 | 506 | static rx_handler_result_t team_dummy_receive(struct team *team, |
507 | struct team_port *port, | |
508 | struct sk_buff *skb) | |
3d249d4c JP |
509 | { |
510 | return RX_HANDLER_ANOTHER; | |
511 | } | |
512 | ||
d299cd51 JP |
513 | static const struct team_mode __team_no_mode = { |
514 | .kind = "*NOMODE*", | |
515 | }; | |
516 | ||
517 | static bool team_is_mode_set(struct team *team) | |
518 | { | |
519 | return team->mode != &__team_no_mode; | |
520 | } | |
521 | ||
522 | static void team_set_no_mode(struct team *team) | |
523 | { | |
e185483e | 524 | team->user_carrier_enabled = false; |
d299cd51 JP |
525 | team->mode = &__team_no_mode; |
526 | } | |
527 | ||
122bb046 | 528 | static void __team_adjust_ops(struct team *team, int en_port_count) |
3d249d4c JP |
529 | { |
530 | /* | |
531 | * To avoid checks in rx/tx skb paths, ensure here that non-null and | |
532 | * correct ops are always set. | |
533 | */ | |
534 | ||
122bb046 JP |
535 | if (!en_port_count || !team_is_mode_set(team) || |
536 | !team->mode->ops->transmit) | |
3d249d4c JP |
537 | team->ops.transmit = team_dummy_transmit; |
538 | else | |
539 | team->ops.transmit = team->mode->ops->transmit; | |
540 | ||
122bb046 JP |
541 | if (!en_port_count || !team_is_mode_set(team) || |
542 | !team->mode->ops->receive) | |
3d249d4c JP |
543 | team->ops.receive = team_dummy_receive; |
544 | else | |
545 | team->ops.receive = team->mode->ops->receive; | |
546 | } | |
547 | ||
122bb046 JP |
548 | static void team_adjust_ops(struct team *team) |
549 | { | |
550 | __team_adjust_ops(team, team->en_port_count); | |
551 | } | |
552 | ||
3d249d4c JP |
553 | /* |
554 | * We can benefit from the fact that it's ensured no port is present | |
555 | * at the time of mode change. Therefore no packets are in fly so there's no | |
556 | * need to set mode operations in any special way. | |
557 | */ | |
558 | static int __team_change_mode(struct team *team, | |
559 | const struct team_mode *new_mode) | |
560 | { | |
561 | /* Check if mode was previously set and do cleanup if so */ | |
d299cd51 | 562 | if (team_is_mode_set(team)) { |
3d249d4c JP |
563 | void (*exit_op)(struct team *team) = team->ops.exit; |
564 | ||
565 | /* Clear ops area so no callback is called any longer */ | |
566 | memset(&team->ops, 0, sizeof(struct team_mode_ops)); | |
567 | team_adjust_ops(team); | |
568 | ||
569 | if (exit_op) | |
570 | exit_op(team); | |
571 | team_mode_put(team->mode); | |
d299cd51 | 572 | team_set_no_mode(team); |
3d249d4c JP |
573 | /* zero private data area */ |
574 | memset(&team->mode_priv, 0, | |
575 | sizeof(struct team) - offsetof(struct team, mode_priv)); | |
576 | } | |
577 | ||
578 | if (!new_mode) | |
579 | return 0; | |
580 | ||
581 | if (new_mode->ops->init) { | |
582 | int err; | |
583 | ||
584 | err = new_mode->ops->init(team); | |
585 | if (err) | |
586 | return err; | |
587 | } | |
588 | ||
589 | team->mode = new_mode; | |
590 | memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); | |
591 | team_adjust_ops(team); | |
592 | ||
593 | return 0; | |
594 | } | |
595 | ||
596 | static int team_change_mode(struct team *team, const char *kind) | |
597 | { | |
0402788a | 598 | const struct team_mode *new_mode; |
3d249d4c JP |
599 | struct net_device *dev = team->dev; |
600 | int err; | |
601 | ||
602 | if (!list_empty(&team->port_list)) { | |
603 | netdev_err(dev, "No ports can be present during mode change\n"); | |
604 | return -EBUSY; | |
605 | } | |
606 | ||
d299cd51 | 607 | if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { |
3d249d4c JP |
608 | netdev_err(dev, "Unable to change to the same mode the team is in\n"); |
609 | return -EINVAL; | |
610 | } | |
611 | ||
612 | new_mode = team_mode_get(kind); | |
613 | if (!new_mode) { | |
614 | netdev_err(dev, "Mode \"%s\" not found\n", kind); | |
615 | return -EINVAL; | |
616 | } | |
617 | ||
618 | err = __team_change_mode(team, new_mode); | |
619 | if (err) { | |
620 | netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); | |
621 | team_mode_put(new_mode); | |
622 | return err; | |
623 | } | |
624 | ||
625 | netdev_info(dev, "Mode changed to \"%s\"\n", kind); | |
626 | return 0; | |
627 | } | |
628 | ||
629 | ||
630 | /************************ | |
631 | * Rx path frame handler | |
632 | ************************/ | |
633 | ||
634 | /* note: already called with rcu_read_lock */ | |
635 | static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) | |
636 | { | |
637 | struct sk_buff *skb = *pskb; | |
638 | struct team_port *port; | |
639 | struct team *team; | |
640 | rx_handler_result_t res; | |
641 | ||
642 | skb = skb_share_check(skb, GFP_ATOMIC); | |
643 | if (!skb) | |
644 | return RX_HANDLER_CONSUMED; | |
645 | ||
646 | *pskb = skb; | |
647 | ||
648 | port = team_port_get_rcu(skb->dev); | |
649 | team = port->team; | |
19a0b58e JP |
650 | if (!team_port_enabled(port)) { |
651 | /* allow exact match delivery for disabled ports */ | |
652 | res = RX_HANDLER_EXACT; | |
653 | } else { | |
654 | res = team->ops.receive(team, port, skb); | |
655 | } | |
3d249d4c JP |
656 | if (res == RX_HANDLER_ANOTHER) { |
657 | struct team_pcpu_stats *pcpu_stats; | |
658 | ||
659 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
660 | u64_stats_update_begin(&pcpu_stats->syncp); | |
661 | pcpu_stats->rx_packets++; | |
662 | pcpu_stats->rx_bytes += skb->len; | |
663 | if (skb->pkt_type == PACKET_MULTICAST) | |
664 | pcpu_stats->rx_multicast++; | |
665 | u64_stats_update_end(&pcpu_stats->syncp); | |
666 | ||
667 | skb->dev = team->dev; | |
668 | } else { | |
669 | this_cpu_inc(team->pcpu_stats->rx_dropped); | |
670 | } | |
671 | ||
672 | return res; | |
673 | } | |
674 | ||
675 | ||
8ff5105a JP |
676 | /************************************* |
677 | * Multiqueue Tx port select override | |
678 | *************************************/ | |
679 | ||
680 | static int team_queue_override_init(struct team *team) | |
681 | { | |
682 | struct list_head *listarr; | |
683 | unsigned int queue_cnt = team->dev->num_tx_queues - 1; | |
684 | unsigned int i; | |
685 | ||
686 | if (!queue_cnt) | |
687 | return 0; | |
688 | listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); | |
689 | if (!listarr) | |
690 | return -ENOMEM; | |
691 | team->qom_lists = listarr; | |
692 | for (i = 0; i < queue_cnt; i++) | |
693 | INIT_LIST_HEAD(listarr++); | |
694 | return 0; | |
695 | } | |
696 | ||
697 | static void team_queue_override_fini(struct team *team) | |
698 | { | |
699 | kfree(team->qom_lists); | |
700 | } | |
701 | ||
702 | static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) | |
703 | { | |
704 | return &team->qom_lists[queue_id - 1]; | |
705 | } | |
706 | ||
707 | /* | |
708 | * note: already called with rcu_read_lock | |
709 | */ | |
710 | static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) | |
711 | { | |
712 | struct list_head *qom_list; | |
713 | struct team_port *port; | |
714 | ||
715 | if (!team->queue_override_enabled || !skb->queue_mapping) | |
716 | return false; | |
717 | qom_list = __team_get_qom_list(team, skb->queue_mapping); | |
718 | list_for_each_entry_rcu(port, qom_list, qom_list) { | |
719 | if (!team_dev_queue_xmit(team, port, skb)) | |
720 | return true; | |
721 | } | |
722 | return false; | |
723 | } | |
724 | ||
725 | static void __team_queue_override_port_del(struct team *team, | |
726 | struct team_port *port) | |
727 | { | |
728 | list_del_rcu(&port->qom_list); | |
729 | synchronize_rcu(); | |
730 | INIT_LIST_HEAD(&port->qom_list); | |
731 | } | |
732 | ||
733 | static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, | |
734 | struct team_port *cur) | |
735 | { | |
736 | if (port->priority < cur->priority) | |
737 | return true; | |
738 | if (port->priority > cur->priority) | |
739 | return false; | |
740 | if (port->index < cur->index) | |
741 | return true; | |
742 | return false; | |
743 | } | |
744 | ||
745 | static void __team_queue_override_port_add(struct team *team, | |
746 | struct team_port *port) | |
747 | { | |
748 | struct team_port *cur; | |
749 | struct list_head *qom_list; | |
750 | struct list_head *node; | |
751 | ||
752 | if (!port->queue_id || !team_port_enabled(port)) | |
753 | return; | |
754 | ||
755 | qom_list = __team_get_qom_list(team, port->queue_id); | |
756 | node = qom_list; | |
757 | list_for_each_entry(cur, qom_list, qom_list) { | |
758 | if (team_queue_override_port_has_gt_prio_than(port, cur)) | |
759 | break; | |
760 | node = &cur->qom_list; | |
761 | } | |
762 | list_add_tail_rcu(&port->qom_list, node); | |
763 | } | |
764 | ||
765 | static void __team_queue_override_enabled_check(struct team *team) | |
766 | { | |
767 | struct team_port *port; | |
768 | bool enabled = false; | |
769 | ||
770 | list_for_each_entry(port, &team->port_list, list) { | |
771 | if (!list_empty(&port->qom_list)) { | |
772 | enabled = true; | |
773 | break; | |
774 | } | |
775 | } | |
776 | if (enabled == team->queue_override_enabled) | |
777 | return; | |
778 | netdev_dbg(team->dev, "%s queue override\n", | |
779 | enabled ? "Enabling" : "Disabling"); | |
780 | team->queue_override_enabled = enabled; | |
781 | } | |
782 | ||
783 | static void team_queue_override_port_refresh(struct team *team, | |
784 | struct team_port *port) | |
785 | { | |
786 | __team_queue_override_port_del(team, port); | |
787 | __team_queue_override_port_add(team, port); | |
788 | __team_queue_override_enabled_check(team); | |
789 | } | |
790 | ||
791 | ||
3d249d4c JP |
792 | /**************** |
793 | * Port handling | |
794 | ****************/ | |
795 | ||
796 | static bool team_port_find(const struct team *team, | |
797 | const struct team_port *port) | |
798 | { | |
799 | struct team_port *cur; | |
800 | ||
801 | list_for_each_entry(cur, &team->port_list, list) | |
802 | if (cur == port) | |
803 | return true; | |
804 | return false; | |
805 | } | |
806 | ||
807 | /* | |
19a0b58e JP |
808 | * Enable/disable port by adding to enabled port hashlist and setting |
809 | * port->index (Might be racy so reader could see incorrect ifindex when | |
810 | * processing a flying packet, but that is not a problem). Write guarded | |
811 | * by team->lock. | |
3d249d4c | 812 | */ |
19a0b58e JP |
813 | static void team_port_enable(struct team *team, |
814 | struct team_port *port) | |
3d249d4c | 815 | { |
19a0b58e JP |
816 | if (team_port_enabled(port)) |
817 | return; | |
818 | port->index = team->en_port_count++; | |
3d249d4c JP |
819 | hlist_add_head_rcu(&port->hlist, |
820 | team_port_index_hash(team, port->index)); | |
122bb046 | 821 | team_adjust_ops(team); |
8ff5105a | 822 | team_queue_override_port_refresh(team, port); |
4bccfd17 JP |
823 | if (team->ops.port_enabled) |
824 | team->ops.port_enabled(team, port); | |
3d249d4c JP |
825 | } |
826 | ||
827 | static void __reconstruct_port_hlist(struct team *team, int rm_index) | |
828 | { | |
829 | int i; | |
830 | struct team_port *port; | |
831 | ||
19a0b58e | 832 | for (i = rm_index + 1; i < team->en_port_count; i++) { |
3d249d4c JP |
833 | port = team_get_port_by_index(team, i); |
834 | hlist_del_rcu(&port->hlist); | |
835 | port->index--; | |
836 | hlist_add_head_rcu(&port->hlist, | |
837 | team_port_index_hash(team, port->index)); | |
838 | } | |
839 | } | |
840 | ||
19a0b58e JP |
841 | static void team_port_disable(struct team *team, |
842 | struct team_port *port) | |
3d249d4c | 843 | { |
19a0b58e JP |
844 | if (!team_port_enabled(port)) |
845 | return; | |
4bccfd17 JP |
846 | if (team->ops.port_disabled) |
847 | team->ops.port_disabled(team, port); | |
3d249d4c | 848 | hlist_del_rcu(&port->hlist); |
122bb046 | 849 | __reconstruct_port_hlist(team, port->index); |
19a0b58e | 850 | port->index = -1; |
8ff5105a | 851 | team_queue_override_port_refresh(team, port); |
122bb046 JP |
852 | __team_adjust_ops(team, team->en_port_count - 1); |
853 | /* | |
854 | * Wait until readers see adjusted ops. This ensures that | |
855 | * readers never see team->en_port_count == 0 | |
856 | */ | |
857 | synchronize_rcu(); | |
858 | team->en_port_count--; | |
3d249d4c JP |
859 | } |
860 | ||
861 | #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ | |
862 | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ | |
863 | NETIF_F_HIGHDMA | NETIF_F_LRO) | |
864 | ||
865 | static void __team_compute_features(struct team *team) | |
866 | { | |
867 | struct team_port *port; | |
868 | u32 vlan_features = TEAM_VLAN_FEATURES; | |
869 | unsigned short max_hard_header_len = ETH_HLEN; | |
dc905951 | 870 | unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; |
3d249d4c JP |
871 | |
872 | list_for_each_entry(port, &team->port_list, list) { | |
873 | vlan_features = netdev_increment_features(vlan_features, | |
874 | port->dev->vlan_features, | |
875 | TEAM_VLAN_FEATURES); | |
876 | ||
dc905951 | 877 | dst_release_flag &= port->dev->priv_flags; |
3d249d4c JP |
878 | if (port->dev->hard_header_len > max_hard_header_len) |
879 | max_hard_header_len = port->dev->hard_header_len; | |
880 | } | |
881 | ||
882 | team->dev->vlan_features = vlan_features; | |
883 | team->dev->hard_header_len = max_hard_header_len; | |
884 | ||
dc905951 JP |
885 | flags = team->dev->priv_flags & ~IFF_XMIT_DST_RELEASE; |
886 | team->dev->priv_flags = flags | dst_release_flag; | |
887 | ||
3d249d4c JP |
888 | netdev_change_features(team->dev); |
889 | } | |
890 | ||
891 | static void team_compute_features(struct team *team) | |
892 | { | |
61dc3461 | 893 | mutex_lock(&team->lock); |
3d249d4c | 894 | __team_compute_features(team); |
61dc3461 | 895 | mutex_unlock(&team->lock); |
3d249d4c JP |
896 | } |
897 | ||
898 | static int team_port_enter(struct team *team, struct team_port *port) | |
899 | { | |
900 | int err = 0; | |
901 | ||
902 | dev_hold(team->dev); | |
903 | port->dev->priv_flags |= IFF_TEAM_PORT; | |
904 | if (team->ops.port_enter) { | |
905 | err = team->ops.port_enter(team, port); | |
906 | if (err) { | |
907 | netdev_err(team->dev, "Device %s failed to enter team mode\n", | |
908 | port->dev->name); | |
909 | goto err_port_enter; | |
910 | } | |
911 | } | |
912 | ||
913 | return 0; | |
914 | ||
915 | err_port_enter: | |
916 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
917 | dev_put(team->dev); | |
918 | ||
919 | return err; | |
920 | } | |
921 | ||
922 | static void team_port_leave(struct team *team, struct team_port *port) | |
923 | { | |
924 | if (team->ops.port_leave) | |
925 | team->ops.port_leave(team, port); | |
926 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
927 | dev_put(team->dev); | |
928 | } | |
929 | ||
bd2d0837 | 930 | #ifdef CONFIG_NET_POLL_CONTROLLER |
47be03a2 AW |
931 | static int team_port_enable_netpoll(struct team *team, struct team_port *port, |
932 | gfp_t gfp) | |
bd2d0837 JP |
933 | { |
934 | struct netpoll *np; | |
935 | int err; | |
936 | ||
47be03a2 | 937 | np = kzalloc(sizeof(*np), gfp); |
bd2d0837 JP |
938 | if (!np) |
939 | return -ENOMEM; | |
940 | ||
47be03a2 | 941 | err = __netpoll_setup(np, port->dev, gfp); |
bd2d0837 JP |
942 | if (err) { |
943 | kfree(np); | |
944 | return err; | |
945 | } | |
946 | port->np = np; | |
947 | return err; | |
948 | } | |
949 | ||
950 | static void team_port_disable_netpoll(struct team_port *port) | |
951 | { | |
952 | struct netpoll *np = port->np; | |
953 | ||
954 | if (!np) | |
955 | return; | |
956 | port->np = NULL; | |
957 | ||
958 | /* Wait for transmitting packets to finish before freeing. */ | |
959 | synchronize_rcu_bh(); | |
960 | __netpoll_cleanup(np); | |
961 | kfree(np); | |
962 | } | |
963 | ||
964 | static struct netpoll_info *team_netpoll_info(struct team *team) | |
965 | { | |
966 | return team->dev->npinfo; | |
967 | } | |
968 | ||
969 | #else | |
47be03a2 AW |
970 | static int team_port_enable_netpoll(struct team *team, struct team_port *port, |
971 | gfp_t gfp) | |
bd2d0837 JP |
972 | { |
973 | return 0; | |
974 | } | |
975 | static void team_port_disable_netpoll(struct team_port *port) | |
976 | { | |
977 | } | |
978 | static struct netpoll_info *team_netpoll_info(struct team *team) | |
979 | { | |
980 | return NULL; | |
981 | } | |
982 | #endif | |
983 | ||
10f3f51d | 984 | static void __team_port_change_port_added(struct team_port *port, bool linkup); |
1d76efe1 JP |
985 | static int team_dev_type_check_change(struct net_device *dev, |
986 | struct net_device *port_dev); | |
3d249d4c JP |
987 | |
988 | static int team_port_add(struct team *team, struct net_device *port_dev) | |
989 | { | |
990 | struct net_device *dev = team->dev; | |
991 | struct team_port *port; | |
992 | char *portname = port_dev->name; | |
993 | int err; | |
994 | ||
1d76efe1 JP |
995 | if (port_dev->flags & IFF_LOOPBACK) { |
996 | netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", | |
3d249d4c JP |
997 | portname); |
998 | return -EINVAL; | |
999 | } | |
1000 | ||
1001 | if (team_port_exists(port_dev)) { | |
1002 | netdev_err(dev, "Device %s is already a port " | |
1003 | "of a team device\n", portname); | |
1004 | return -EBUSY; | |
1005 | } | |
1006 | ||
2c33bb37 JP |
1007 | if (port_dev->features & NETIF_F_VLAN_CHALLENGED && |
1008 | vlan_uses_dev(dev)) { | |
1009 | netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", | |
1010 | portname); | |
1011 | return -EPERM; | |
1012 | } | |
1013 | ||
1d76efe1 JP |
1014 | err = team_dev_type_check_change(dev, port_dev); |
1015 | if (err) | |
1016 | return err; | |
1017 | ||
3d249d4c JP |
1018 | if (port_dev->flags & IFF_UP) { |
1019 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", | |
1020 | portname); | |
1021 | return -EBUSY; | |
1022 | } | |
1023 | ||
5149ee58 JP |
1024 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
1025 | GFP_KERNEL); | |
3d249d4c JP |
1026 | if (!port) |
1027 | return -ENOMEM; | |
1028 | ||
1029 | port->dev = port_dev; | |
1030 | port->team = team; | |
8ff5105a | 1031 | INIT_LIST_HEAD(&port->qom_list); |
3d249d4c JP |
1032 | |
1033 | port->orig.mtu = port_dev->mtu; | |
1034 | err = dev_set_mtu(port_dev, dev->mtu); | |
1035 | if (err) { | |
1036 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); | |
1037 | goto err_set_mtu; | |
1038 | } | |
1039 | ||
1d76efe1 | 1040 | memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); |
3d249d4c JP |
1041 | |
1042 | err = team_port_enter(team, port); | |
1043 | if (err) { | |
1044 | netdev_err(dev, "Device %s failed to enter team mode\n", | |
1045 | portname); | |
1046 | goto err_port_enter; | |
1047 | } | |
1048 | ||
1049 | err = dev_open(port_dev); | |
1050 | if (err) { | |
1051 | netdev_dbg(dev, "Device %s opening failed\n", | |
1052 | portname); | |
1053 | goto err_dev_open; | |
1054 | } | |
1055 | ||
57459185 JP |
1056 | err = vlan_vids_add_by_dev(port_dev, dev); |
1057 | if (err) { | |
1058 | netdev_err(dev, "Failed to add vlan ids to device %s\n", | |
1059 | portname); | |
1060 | goto err_vids_add; | |
1061 | } | |
1062 | ||
bd2d0837 | 1063 | if (team_netpoll_info(team)) { |
47be03a2 | 1064 | err = team_port_enable_netpoll(team, port, GFP_KERNEL); |
bd2d0837 JP |
1065 | if (err) { |
1066 | netdev_err(dev, "Failed to enable netpoll on device %s\n", | |
1067 | portname); | |
1068 | goto err_enable_netpoll; | |
1069 | } | |
1070 | } | |
1071 | ||
b1cc9850 | 1072 | err = netdev_master_upper_dev_link(port_dev, dev); |
3d249d4c | 1073 | if (err) { |
b1cc9850 JP |
1074 | netdev_err(dev, "Device %s failed to set upper link\n", |
1075 | portname); | |
1076 | goto err_set_upper_link; | |
3d249d4c JP |
1077 | } |
1078 | ||
1079 | err = netdev_rx_handler_register(port_dev, team_handle_frame, | |
1080 | port); | |
1081 | if (err) { | |
1082 | netdev_err(dev, "Device %s failed to register rx_handler\n", | |
1083 | portname); | |
1084 | goto err_handler_register; | |
1085 | } | |
1086 | ||
35b384bd | 1087 | err = __team_option_inst_add_port(team, port); |
80f7c668 JP |
1088 | if (err) { |
1089 | netdev_err(dev, "Device %s failed to add per-port options\n", | |
1090 | portname); | |
1091 | goto err_option_port_add; | |
1092 | } | |
1093 | ||
19a0b58e JP |
1094 | port->index = -1; |
1095 | team_port_enable(team, port); | |
1096 | list_add_tail_rcu(&port->list, &team->port_list); | |
3d249d4c | 1097 | __team_compute_features(team); |
10f3f51d | 1098 | __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); |
35b384bd | 1099 | __team_options_change_check(team); |
3d249d4c JP |
1100 | |
1101 | netdev_info(dev, "Port device %s added\n", portname); | |
1102 | ||
1103 | return 0; | |
1104 | ||
80f7c668 JP |
1105 | err_option_port_add: |
1106 | netdev_rx_handler_unregister(port_dev); | |
1107 | ||
3d249d4c | 1108 | err_handler_register: |
b1cc9850 | 1109 | netdev_upper_dev_unlink(port_dev, dev); |
3d249d4c | 1110 | |
b1cc9850 | 1111 | err_set_upper_link: |
bd2d0837 JP |
1112 | team_port_disable_netpoll(port); |
1113 | ||
1114 | err_enable_netpoll: | |
57459185 JP |
1115 | vlan_vids_del_by_dev(port_dev, dev); |
1116 | ||
1117 | err_vids_add: | |
3d249d4c JP |
1118 | dev_close(port_dev); |
1119 | ||
1120 | err_dev_open: | |
1121 | team_port_leave(team, port); | |
1d76efe1 | 1122 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1123 | |
1124 | err_port_enter: | |
1125 | dev_set_mtu(port_dev, port->orig.mtu); | |
1126 | ||
1127 | err_set_mtu: | |
1128 | kfree(port); | |
1129 | ||
1130 | return err; | |
1131 | } | |
1132 | ||
10f3f51d JP |
1133 | static void __team_port_change_port_removed(struct team_port *port); |
1134 | ||
3d249d4c JP |
1135 | static int team_port_del(struct team *team, struct net_device *port_dev) |
1136 | { | |
1137 | struct net_device *dev = team->dev; | |
1138 | struct team_port *port; | |
1139 | char *portname = port_dev->name; | |
1140 | ||
1141 | port = team_port_get_rtnl(port_dev); | |
1142 | if (!port || !team_port_find(team, port)) { | |
1143 | netdev_err(dev, "Device %s does not act as a port of this team\n", | |
1144 | portname); | |
1145 | return -ENOENT; | |
1146 | } | |
1147 | ||
19a0b58e JP |
1148 | team_port_disable(team, port); |
1149 | list_del_rcu(&port->list); | |
3d249d4c | 1150 | netdev_rx_handler_unregister(port_dev); |
b1cc9850 | 1151 | netdev_upper_dev_unlink(port_dev, dev); |
bd2d0837 | 1152 | team_port_disable_netpoll(port); |
57459185 | 1153 | vlan_vids_del_by_dev(port_dev, dev); |
ba81276b VY |
1154 | dev_uc_unsync(port_dev, dev); |
1155 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1156 | dev_close(port_dev); |
1157 | team_port_leave(team, port); | |
c3969d80 JP |
1158 | |
1159 | __team_option_inst_mark_removed_port(team, port); | |
1160 | __team_options_change_check(team); | |
1161 | __team_option_inst_del_port(team, port); | |
1162 | __team_port_change_port_removed(port); | |
1163 | ||
1d76efe1 | 1164 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1165 | dev_set_mtu(port_dev, port->orig.mtu); |
1166 | synchronize_rcu(); | |
1167 | kfree(port); | |
1168 | netdev_info(dev, "Port device %s removed\n", portname); | |
1169 | __team_compute_features(team); | |
1170 | ||
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | ||
1175 | /***************** | |
1176 | * Net device ops | |
1177 | *****************/ | |
1178 | ||
80f7c668 | 1179 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1180 | { |
d299cd51 | 1181 | ctx->data.str_val = team->mode->kind; |
3d249d4c JP |
1182 | return 0; |
1183 | } | |
1184 | ||
80f7c668 | 1185 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1186 | { |
80f7c668 | 1187 | return team_change_mode(team, ctx->data.str_val); |
3d249d4c JP |
1188 | } |
1189 | ||
acd69962 JP |
1190 | static int team_port_en_option_get(struct team *team, |
1191 | struct team_gsetter_ctx *ctx) | |
1192 | { | |
85d59a87 JP |
1193 | struct team_port *port = ctx->info->port; |
1194 | ||
1195 | ctx->data.bool_val = team_port_enabled(port); | |
acd69962 JP |
1196 | return 0; |
1197 | } | |
1198 | ||
1199 | static int team_port_en_option_set(struct team *team, | |
1200 | struct team_gsetter_ctx *ctx) | |
1201 | { | |
85d59a87 JP |
1202 | struct team_port *port = ctx->info->port; |
1203 | ||
acd69962 | 1204 | if (ctx->data.bool_val) |
85d59a87 | 1205 | team_port_enable(team, port); |
acd69962 | 1206 | else |
85d59a87 | 1207 | team_port_disable(team, port); |
acd69962 JP |
1208 | return 0; |
1209 | } | |
1210 | ||
71472ec1 JP |
1211 | static int team_user_linkup_option_get(struct team *team, |
1212 | struct team_gsetter_ctx *ctx) | |
1213 | { | |
85d59a87 JP |
1214 | struct team_port *port = ctx->info->port; |
1215 | ||
1216 | ctx->data.bool_val = port->user.linkup; | |
71472ec1 JP |
1217 | return 0; |
1218 | } | |
1219 | ||
1220 | static int team_user_linkup_option_set(struct team *team, | |
1221 | struct team_gsetter_ctx *ctx) | |
1222 | { | |
85d59a87 JP |
1223 | struct team_port *port = ctx->info->port; |
1224 | ||
1225 | port->user.linkup = ctx->data.bool_val; | |
1226 | team_refresh_port_linkup(port); | |
71472ec1 JP |
1227 | return 0; |
1228 | } | |
1229 | ||
1230 | static int team_user_linkup_en_option_get(struct team *team, | |
1231 | struct team_gsetter_ctx *ctx) | |
1232 | { | |
85d59a87 | 1233 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1234 | |
1235 | ctx->data.bool_val = port->user.linkup_enabled; | |
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | static int team_user_linkup_en_option_set(struct team *team, | |
1240 | struct team_gsetter_ctx *ctx) | |
1241 | { | |
85d59a87 | 1242 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1243 | |
1244 | port->user.linkup_enabled = ctx->data.bool_val; | |
85d59a87 | 1245 | team_refresh_port_linkup(port); |
71472ec1 JP |
1246 | return 0; |
1247 | } | |
1248 | ||
a86fc6b7 JP |
1249 | static int team_priority_option_get(struct team *team, |
1250 | struct team_gsetter_ctx *ctx) | |
1251 | { | |
1252 | struct team_port *port = ctx->info->port; | |
1253 | ||
1254 | ctx->data.s32_val = port->priority; | |
1255 | return 0; | |
1256 | } | |
1257 | ||
1258 | static int team_priority_option_set(struct team *team, | |
1259 | struct team_gsetter_ctx *ctx) | |
1260 | { | |
1261 | struct team_port *port = ctx->info->port; | |
1262 | ||
1263 | port->priority = ctx->data.s32_val; | |
8ff5105a JP |
1264 | team_queue_override_port_refresh(team, port); |
1265 | return 0; | |
1266 | } | |
1267 | ||
1268 | static int team_queue_id_option_get(struct team *team, | |
1269 | struct team_gsetter_ctx *ctx) | |
1270 | { | |
1271 | struct team_port *port = ctx->info->port; | |
1272 | ||
1273 | ctx->data.u32_val = port->queue_id; | |
a86fc6b7 JP |
1274 | return 0; |
1275 | } | |
1276 | ||
8ff5105a JP |
1277 | static int team_queue_id_option_set(struct team *team, |
1278 | struct team_gsetter_ctx *ctx) | |
1279 | { | |
1280 | struct team_port *port = ctx->info->port; | |
1281 | ||
1282 | if (port->queue_id == ctx->data.u32_val) | |
1283 | return 0; | |
1284 | if (ctx->data.u32_val >= team->dev->real_num_tx_queues) | |
1285 | return -EINVAL; | |
1286 | port->queue_id = ctx->data.u32_val; | |
1287 | team_queue_override_port_refresh(team, port); | |
1288 | return 0; | |
1289 | } | |
1290 | ||
1291 | ||
358b8382 | 1292 | static const struct team_option team_options[] = { |
3d249d4c JP |
1293 | { |
1294 | .name = "mode", | |
1295 | .type = TEAM_OPTION_TYPE_STRING, | |
1296 | .getter = team_mode_option_get, | |
1297 | .setter = team_mode_option_set, | |
1298 | }, | |
acd69962 JP |
1299 | { |
1300 | .name = "enabled", | |
1301 | .type = TEAM_OPTION_TYPE_BOOL, | |
1302 | .per_port = true, | |
1303 | .getter = team_port_en_option_get, | |
1304 | .setter = team_port_en_option_set, | |
1305 | }, | |
71472ec1 JP |
1306 | { |
1307 | .name = "user_linkup", | |
1308 | .type = TEAM_OPTION_TYPE_BOOL, | |
1309 | .per_port = true, | |
1310 | .getter = team_user_linkup_option_get, | |
1311 | .setter = team_user_linkup_option_set, | |
1312 | }, | |
1313 | { | |
1314 | .name = "user_linkup_enabled", | |
1315 | .type = TEAM_OPTION_TYPE_BOOL, | |
1316 | .per_port = true, | |
1317 | .getter = team_user_linkup_en_option_get, | |
1318 | .setter = team_user_linkup_en_option_set, | |
1319 | }, | |
a86fc6b7 JP |
1320 | { |
1321 | .name = "priority", | |
1322 | .type = TEAM_OPTION_TYPE_S32, | |
1323 | .per_port = true, | |
1324 | .getter = team_priority_option_get, | |
1325 | .setter = team_priority_option_set, | |
1326 | }, | |
8ff5105a JP |
1327 | { |
1328 | .name = "queue_id", | |
1329 | .type = TEAM_OPTION_TYPE_U32, | |
1330 | .per_port = true, | |
1331 | .getter = team_queue_id_option_get, | |
1332 | .setter = team_queue_id_option_set, | |
1333 | }, | |
3d249d4c JP |
1334 | }; |
1335 | ||
6c85f2bd JP |
1336 | static struct lock_class_key team_netdev_xmit_lock_key; |
1337 | static struct lock_class_key team_netdev_addr_lock_key; | |
b3c581d5 | 1338 | static struct lock_class_key team_tx_busylock_key; |
6c85f2bd JP |
1339 | |
1340 | static void team_set_lockdep_class_one(struct net_device *dev, | |
1341 | struct netdev_queue *txq, | |
1342 | void *unused) | |
1343 | { | |
1344 | lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); | |
1345 | } | |
1346 | ||
1347 | static void team_set_lockdep_class(struct net_device *dev) | |
1348 | { | |
1349 | lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); | |
1350 | netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); | |
b3c581d5 | 1351 | dev->qdisc_tx_busylock = &team_tx_busylock_key; |
6c85f2bd JP |
1352 | } |
1353 | ||
3d249d4c JP |
1354 | static int team_init(struct net_device *dev) |
1355 | { | |
1356 | struct team *team = netdev_priv(dev); | |
1357 | int i; | |
358b8382 | 1358 | int err; |
3d249d4c JP |
1359 | |
1360 | team->dev = dev; | |
61dc3461 | 1361 | mutex_init(&team->lock); |
d299cd51 | 1362 | team_set_no_mode(team); |
3d249d4c JP |
1363 | |
1364 | team->pcpu_stats = alloc_percpu(struct team_pcpu_stats); | |
1365 | if (!team->pcpu_stats) | |
1366 | return -ENOMEM; | |
1367 | ||
1368 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) | |
19a0b58e | 1369 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
3d249d4c | 1370 | INIT_LIST_HEAD(&team->port_list); |
8ff5105a JP |
1371 | err = team_queue_override_init(team); |
1372 | if (err) | |
1373 | goto err_team_queue_override_init; | |
3d249d4c JP |
1374 | |
1375 | team_adjust_ops(team); | |
1376 | ||
1377 | INIT_LIST_HEAD(&team->option_list); | |
80f7c668 | 1378 | INIT_LIST_HEAD(&team->option_inst_list); |
358b8382 JP |
1379 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
1380 | if (err) | |
1381 | goto err_options_register; | |
3d249d4c JP |
1382 | netif_carrier_off(dev); |
1383 | ||
6c85f2bd JP |
1384 | team_set_lockdep_class(dev); |
1385 | ||
3d249d4c | 1386 | return 0; |
358b8382 JP |
1387 | |
1388 | err_options_register: | |
8ff5105a JP |
1389 | team_queue_override_fini(team); |
1390 | err_team_queue_override_init: | |
358b8382 JP |
1391 | free_percpu(team->pcpu_stats); |
1392 | ||
1393 | return err; | |
3d249d4c JP |
1394 | } |
1395 | ||
1396 | static void team_uninit(struct net_device *dev) | |
1397 | { | |
1398 | struct team *team = netdev_priv(dev); | |
1399 | struct team_port *port; | |
1400 | struct team_port *tmp; | |
1401 | ||
61dc3461 | 1402 | mutex_lock(&team->lock); |
3d249d4c JP |
1403 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
1404 | team_port_del(team, port->dev); | |
1405 | ||
1406 | __team_change_mode(team, NULL); /* cleanup */ | |
1407 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); | |
8ff5105a | 1408 | team_queue_override_fini(team); |
61dc3461 | 1409 | mutex_unlock(&team->lock); |
3d249d4c JP |
1410 | } |
1411 | ||
1412 | static void team_destructor(struct net_device *dev) | |
1413 | { | |
1414 | struct team *team = netdev_priv(dev); | |
1415 | ||
1416 | free_percpu(team->pcpu_stats); | |
1417 | free_netdev(dev); | |
1418 | } | |
1419 | ||
1420 | static int team_open(struct net_device *dev) | |
1421 | { | |
3d249d4c JP |
1422 | return 0; |
1423 | } | |
1424 | ||
1425 | static int team_close(struct net_device *dev) | |
1426 | { | |
3d249d4c JP |
1427 | return 0; |
1428 | } | |
1429 | ||
1430 | /* | |
1431 | * note: already called with rcu_read_lock | |
1432 | */ | |
1433 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) | |
1434 | { | |
1435 | struct team *team = netdev_priv(dev); | |
8ff5105a | 1436 | bool tx_success; |
3d249d4c JP |
1437 | unsigned int len = skb->len; |
1438 | ||
8ff5105a JP |
1439 | tx_success = team_queue_override_transmit(team, skb); |
1440 | if (!tx_success) | |
1441 | tx_success = team->ops.transmit(team, skb); | |
3d249d4c JP |
1442 | if (tx_success) { |
1443 | struct team_pcpu_stats *pcpu_stats; | |
1444 | ||
1445 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
1446 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1447 | pcpu_stats->tx_packets++; | |
1448 | pcpu_stats->tx_bytes += len; | |
1449 | u64_stats_update_end(&pcpu_stats->syncp); | |
1450 | } else { | |
1451 | this_cpu_inc(team->pcpu_stats->tx_dropped); | |
1452 | } | |
1453 | ||
1454 | return NETDEV_TX_OK; | |
1455 | } | |
1456 | ||
6c85f2bd JP |
1457 | static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb) |
1458 | { | |
1459 | /* | |
1460 | * This helper function exists to help dev_pick_tx get the correct | |
1461 | * destination queue. Using a helper function skips a call to | |
1462 | * skb_tx_hash and will put the skbs in the queue we expect on their | |
1463 | * way down to the team driver. | |
1464 | */ | |
1465 | u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; | |
1466 | ||
1467 | /* | |
1468 | * Save the original txq to restore before passing to the driver | |
1469 | */ | |
1470 | qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; | |
1471 | ||
1472 | if (unlikely(txq >= dev->real_num_tx_queues)) { | |
1473 | do { | |
1474 | txq -= dev->real_num_tx_queues; | |
1475 | } while (txq >= dev->real_num_tx_queues); | |
1476 | } | |
1477 | return txq; | |
1478 | } | |
1479 | ||
3d249d4c JP |
1480 | static void team_change_rx_flags(struct net_device *dev, int change) |
1481 | { | |
1482 | struct team *team = netdev_priv(dev); | |
1483 | struct team_port *port; | |
1484 | int inc; | |
1485 | ||
1486 | rcu_read_lock(); | |
1487 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1488 | if (change & IFF_PROMISC) { | |
1489 | inc = dev->flags & IFF_PROMISC ? 1 : -1; | |
1490 | dev_set_promiscuity(port->dev, inc); | |
1491 | } | |
1492 | if (change & IFF_ALLMULTI) { | |
1493 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; | |
1494 | dev_set_allmulti(port->dev, inc); | |
1495 | } | |
1496 | } | |
1497 | rcu_read_unlock(); | |
1498 | } | |
1499 | ||
1500 | static void team_set_rx_mode(struct net_device *dev) | |
1501 | { | |
1502 | struct team *team = netdev_priv(dev); | |
1503 | struct team_port *port; | |
1504 | ||
1505 | rcu_read_lock(); | |
1506 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
72b27032 VY |
1507 | dev_uc_sync_multiple(port->dev, dev); |
1508 | dev_mc_sync_multiple(port->dev, dev); | |
3d249d4c JP |
1509 | } |
1510 | rcu_read_unlock(); | |
1511 | } | |
1512 | ||
1513 | static int team_set_mac_address(struct net_device *dev, void *p) | |
1514 | { | |
1d76efe1 | 1515 | struct sockaddr *addr = p; |
3d249d4c JP |
1516 | struct team *team = netdev_priv(dev); |
1517 | struct team_port *port; | |
3d249d4c | 1518 | |
1d76efe1 JP |
1519 | if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) |
1520 | return -EADDRNOTAVAIL; | |
1521 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
3d249d4c JP |
1522 | rcu_read_lock(); |
1523 | list_for_each_entry_rcu(port, &team->port_list, list) | |
1d76efe1 JP |
1524 | if (team->ops.port_change_dev_addr) |
1525 | team->ops.port_change_dev_addr(team, port); | |
3d249d4c JP |
1526 | rcu_read_unlock(); |
1527 | return 0; | |
1528 | } | |
1529 | ||
1530 | static int team_change_mtu(struct net_device *dev, int new_mtu) | |
1531 | { | |
1532 | struct team *team = netdev_priv(dev); | |
1533 | struct team_port *port; | |
1534 | int err; | |
1535 | ||
1536 | /* | |
1537 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1538 | * to traverse list in reverse under rcu_read_lock | |
1539 | */ | |
61dc3461 | 1540 | mutex_lock(&team->lock); |
3d249d4c JP |
1541 | list_for_each_entry(port, &team->port_list, list) { |
1542 | err = dev_set_mtu(port->dev, new_mtu); | |
1543 | if (err) { | |
1544 | netdev_err(dev, "Device %s failed to change mtu", | |
1545 | port->dev->name); | |
1546 | goto unwind; | |
1547 | } | |
1548 | } | |
61dc3461 | 1549 | mutex_unlock(&team->lock); |
3d249d4c JP |
1550 | |
1551 | dev->mtu = new_mtu; | |
1552 | ||
1553 | return 0; | |
1554 | ||
1555 | unwind: | |
1556 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1557 | dev_set_mtu(port->dev, dev->mtu); | |
61dc3461 | 1558 | mutex_unlock(&team->lock); |
3d249d4c JP |
1559 | |
1560 | return err; | |
1561 | } | |
1562 | ||
1563 | static struct rtnl_link_stats64 * | |
1564 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
1565 | { | |
1566 | struct team *team = netdev_priv(dev); | |
1567 | struct team_pcpu_stats *p; | |
1568 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; | |
1569 | u32 rx_dropped = 0, tx_dropped = 0; | |
1570 | unsigned int start; | |
1571 | int i; | |
1572 | ||
1573 | for_each_possible_cpu(i) { | |
1574 | p = per_cpu_ptr(team->pcpu_stats, i); | |
1575 | do { | |
1576 | start = u64_stats_fetch_begin_bh(&p->syncp); | |
1577 | rx_packets = p->rx_packets; | |
1578 | rx_bytes = p->rx_bytes; | |
1579 | rx_multicast = p->rx_multicast; | |
1580 | tx_packets = p->tx_packets; | |
1581 | tx_bytes = p->tx_bytes; | |
1582 | } while (u64_stats_fetch_retry_bh(&p->syncp, start)); | |
1583 | ||
1584 | stats->rx_packets += rx_packets; | |
1585 | stats->rx_bytes += rx_bytes; | |
1586 | stats->multicast += rx_multicast; | |
1587 | stats->tx_packets += tx_packets; | |
1588 | stats->tx_bytes += tx_bytes; | |
1589 | /* | |
1590 | * rx_dropped & tx_dropped are u32, updated | |
1591 | * without syncp protection. | |
1592 | */ | |
1593 | rx_dropped += p->rx_dropped; | |
1594 | tx_dropped += p->tx_dropped; | |
1595 | } | |
1596 | stats->rx_dropped = rx_dropped; | |
1597 | stats->tx_dropped = tx_dropped; | |
1598 | return stats; | |
1599 | } | |
1600 | ||
80d5c368 | 1601 | static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1602 | { |
1603 | struct team *team = netdev_priv(dev); | |
1604 | struct team_port *port; | |
87002b03 | 1605 | int err; |
3d249d4c | 1606 | |
87002b03 JP |
1607 | /* |
1608 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1609 | * to traverse list in reverse under rcu_read_lock | |
1610 | */ | |
1611 | mutex_lock(&team->lock); | |
1612 | list_for_each_entry(port, &team->port_list, list) { | |
80d5c368 | 1613 | err = vlan_vid_add(port->dev, proto, vid); |
87002b03 JP |
1614 | if (err) |
1615 | goto unwind; | |
3d249d4c | 1616 | } |
87002b03 | 1617 | mutex_unlock(&team->lock); |
8e586137 JP |
1618 | |
1619 | return 0; | |
87002b03 JP |
1620 | |
1621 | unwind: | |
1622 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
80d5c368 | 1623 | vlan_vid_del(port->dev, proto, vid); |
87002b03 JP |
1624 | mutex_unlock(&team->lock); |
1625 | ||
1626 | return err; | |
3d249d4c JP |
1627 | } |
1628 | ||
80d5c368 | 1629 | static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1630 | { |
1631 | struct team *team = netdev_priv(dev); | |
1632 | struct team_port *port; | |
1633 | ||
1634 | rcu_read_lock(); | |
87002b03 | 1635 | list_for_each_entry_rcu(port, &team->port_list, list) |
80d5c368 | 1636 | vlan_vid_del(port->dev, proto, vid); |
3d249d4c | 1637 | rcu_read_unlock(); |
8e586137 JP |
1638 | |
1639 | return 0; | |
3d249d4c JP |
1640 | } |
1641 | ||
bd2d0837 JP |
1642 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1643 | static void team_poll_controller(struct net_device *dev) | |
1644 | { | |
1645 | } | |
1646 | ||
1647 | static void __team_netpoll_cleanup(struct team *team) | |
1648 | { | |
1649 | struct team_port *port; | |
1650 | ||
1651 | list_for_each_entry(port, &team->port_list, list) | |
1652 | team_port_disable_netpoll(port); | |
1653 | } | |
1654 | ||
1655 | static void team_netpoll_cleanup(struct net_device *dev) | |
1656 | { | |
1657 | struct team *team = netdev_priv(dev); | |
1658 | ||
1659 | mutex_lock(&team->lock); | |
1660 | __team_netpoll_cleanup(team); | |
1661 | mutex_unlock(&team->lock); | |
1662 | } | |
1663 | ||
1664 | static int team_netpoll_setup(struct net_device *dev, | |
47be03a2 | 1665 | struct netpoll_info *npifo, gfp_t gfp) |
bd2d0837 JP |
1666 | { |
1667 | struct team *team = netdev_priv(dev); | |
1668 | struct team_port *port; | |
3324d024 | 1669 | int err = 0; |
bd2d0837 JP |
1670 | |
1671 | mutex_lock(&team->lock); | |
1672 | list_for_each_entry(port, &team->port_list, list) { | |
47be03a2 | 1673 | err = team_port_enable_netpoll(team, port, gfp); |
bd2d0837 JP |
1674 | if (err) { |
1675 | __team_netpoll_cleanup(team); | |
1676 | break; | |
1677 | } | |
1678 | } | |
1679 | mutex_unlock(&team->lock); | |
1680 | return err; | |
1681 | } | |
1682 | #endif | |
1683 | ||
3d249d4c JP |
1684 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev) |
1685 | { | |
1686 | struct team *team = netdev_priv(dev); | |
1687 | int err; | |
1688 | ||
61dc3461 | 1689 | mutex_lock(&team->lock); |
3d249d4c | 1690 | err = team_port_add(team, port_dev); |
61dc3461 | 1691 | mutex_unlock(&team->lock); |
3d249d4c JP |
1692 | return err; |
1693 | } | |
1694 | ||
1695 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) | |
1696 | { | |
1697 | struct team *team = netdev_priv(dev); | |
1698 | int err; | |
1699 | ||
61dc3461 | 1700 | mutex_lock(&team->lock); |
3d249d4c | 1701 | err = team_port_del(team, port_dev); |
61dc3461 | 1702 | mutex_unlock(&team->lock); |
3d249d4c JP |
1703 | return err; |
1704 | } | |
1705 | ||
234a8fd4 JP |
1706 | static netdev_features_t team_fix_features(struct net_device *dev, |
1707 | netdev_features_t features) | |
1708 | { | |
1709 | struct team_port *port; | |
1710 | struct team *team = netdev_priv(dev); | |
1711 | netdev_features_t mask; | |
1712 | ||
1713 | mask = features; | |
1714 | features &= ~NETIF_F_ONE_FOR_ALL; | |
1715 | features |= NETIF_F_ALL_FOR_ALL; | |
1716 | ||
1717 | rcu_read_lock(); | |
1718 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1719 | features = netdev_increment_features(features, | |
1720 | port->dev->features, | |
1721 | mask); | |
1722 | } | |
1723 | rcu_read_unlock(); | |
1724 | return features; | |
1725 | } | |
1726 | ||
4cafe373 FL |
1727 | static int team_change_carrier(struct net_device *dev, bool new_carrier) |
1728 | { | |
e185483e FL |
1729 | struct team *team = netdev_priv(dev); |
1730 | ||
1731 | team->user_carrier_enabled = true; | |
1732 | ||
4cafe373 FL |
1733 | if (new_carrier) |
1734 | netif_carrier_on(dev); | |
1735 | else | |
1736 | netif_carrier_off(dev); | |
1737 | return 0; | |
1738 | } | |
1739 | ||
3d249d4c JP |
1740 | static const struct net_device_ops team_netdev_ops = { |
1741 | .ndo_init = team_init, | |
1742 | .ndo_uninit = team_uninit, | |
1743 | .ndo_open = team_open, | |
1744 | .ndo_stop = team_close, | |
1745 | .ndo_start_xmit = team_xmit, | |
6c85f2bd | 1746 | .ndo_select_queue = team_select_queue, |
3d249d4c JP |
1747 | .ndo_change_rx_flags = team_change_rx_flags, |
1748 | .ndo_set_rx_mode = team_set_rx_mode, | |
1749 | .ndo_set_mac_address = team_set_mac_address, | |
1750 | .ndo_change_mtu = team_change_mtu, | |
1751 | .ndo_get_stats64 = team_get_stats64, | |
1752 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, | |
1753 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, | |
bd2d0837 JP |
1754 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1755 | .ndo_poll_controller = team_poll_controller, | |
1756 | .ndo_netpoll_setup = team_netpoll_setup, | |
1757 | .ndo_netpoll_cleanup = team_netpoll_cleanup, | |
1758 | #endif | |
3d249d4c JP |
1759 | .ndo_add_slave = team_add_slave, |
1760 | .ndo_del_slave = team_del_slave, | |
234a8fd4 | 1761 | .ndo_fix_features = team_fix_features, |
4cafe373 | 1762 | .ndo_change_carrier = team_change_carrier, |
3d249d4c JP |
1763 | }; |
1764 | ||
7f51c587 FL |
1765 | /*********************** |
1766 | * ethtool interface | |
1767 | ***********************/ | |
1768 | ||
1769 | static void team_ethtool_get_drvinfo(struct net_device *dev, | |
1770 | struct ethtool_drvinfo *drvinfo) | |
1771 | { | |
3066af58 FL |
1772 | strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
1773 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
7f51c587 FL |
1774 | } |
1775 | ||
1776 | static const struct ethtool_ops team_ethtool_ops = { | |
1777 | .get_drvinfo = team_ethtool_get_drvinfo, | |
1778 | .get_link = ethtool_op_get_link, | |
1779 | }; | |
3d249d4c JP |
1780 | |
1781 | /*********************** | |
1782 | * rt netlink interface | |
1783 | ***********************/ | |
1784 | ||
1d76efe1 JP |
1785 | static void team_setup_by_port(struct net_device *dev, |
1786 | struct net_device *port_dev) | |
1787 | { | |
1788 | dev->header_ops = port_dev->header_ops; | |
1789 | dev->type = port_dev->type; | |
1790 | dev->hard_header_len = port_dev->hard_header_len; | |
1791 | dev->addr_len = port_dev->addr_len; | |
1792 | dev->mtu = port_dev->mtu; | |
1793 | memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); | |
1794 | memcpy(dev->dev_addr, port_dev->dev_addr, port_dev->addr_len); | |
1d76efe1 JP |
1795 | } |
1796 | ||
1797 | static int team_dev_type_check_change(struct net_device *dev, | |
1798 | struct net_device *port_dev) | |
1799 | { | |
1800 | struct team *team = netdev_priv(dev); | |
1801 | char *portname = port_dev->name; | |
1802 | int err; | |
1803 | ||
1804 | if (dev->type == port_dev->type) | |
1805 | return 0; | |
1806 | if (!list_empty(&team->port_list)) { | |
1807 | netdev_err(dev, "Device %s is of different type\n", portname); | |
1808 | return -EBUSY; | |
1809 | } | |
1810 | err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); | |
1811 | err = notifier_to_errno(err); | |
1812 | if (err) { | |
1813 | netdev_err(dev, "Refused to change device type\n"); | |
1814 | return err; | |
1815 | } | |
1816 | dev_uc_flush(dev); | |
1817 | dev_mc_flush(dev); | |
1818 | team_setup_by_port(dev, port_dev); | |
1819 | call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); | |
1820 | return 0; | |
1821 | } | |
1822 | ||
3d249d4c JP |
1823 | static void team_setup(struct net_device *dev) |
1824 | { | |
1825 | ether_setup(dev); | |
1826 | ||
1827 | dev->netdev_ops = &team_netdev_ops; | |
7f51c587 | 1828 | dev->ethtool_ops = &team_ethtool_ops; |
3d249d4c JP |
1829 | dev->destructor = team_destructor; |
1830 | dev->tx_queue_len = 0; | |
1831 | dev->flags |= IFF_MULTICAST; | |
1832 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); | |
1833 | ||
1834 | /* | |
1835 | * Indicate we support unicast address filtering. That way core won't | |
1836 | * bring us to promisc mode in case a unicast addr is added. | |
1837 | * Let this up to underlay drivers. | |
1838 | */ | |
5a1d1c8c | 1839 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
3d249d4c JP |
1840 | |
1841 | dev->features |= NETIF_F_LLTX; | |
1842 | dev->features |= NETIF_F_GRO; | |
3ed71471 | 1843 | dev->hw_features = TEAM_VLAN_FEATURES | |
f646968f PM |
1844 | NETIF_F_HW_VLAN_CTAG_TX | |
1845 | NETIF_F_HW_VLAN_CTAG_RX | | |
1846 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
3d249d4c | 1847 | |
3ed71471 | 1848 | dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM); |
3d249d4c JP |
1849 | dev->features |= dev->hw_features; |
1850 | } | |
1851 | ||
1852 | static int team_newlink(struct net *src_net, struct net_device *dev, | |
1853 | struct nlattr *tb[], struct nlattr *data[]) | |
1854 | { | |
1855 | int err; | |
1856 | ||
1857 | if (tb[IFLA_ADDRESS] == NULL) | |
7ce5d222 | 1858 | eth_hw_addr_random(dev); |
3d249d4c JP |
1859 | |
1860 | err = register_netdevice(dev); | |
1861 | if (err) | |
1862 | return err; | |
1863 | ||
1864 | return 0; | |
1865 | } | |
1866 | ||
1867 | static int team_validate(struct nlattr *tb[], struct nlattr *data[]) | |
1868 | { | |
1869 | if (tb[IFLA_ADDRESS]) { | |
1870 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
1871 | return -EINVAL; | |
1872 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
1873 | return -EADDRNOTAVAIL; | |
1874 | } | |
1875 | return 0; | |
1876 | } | |
1877 | ||
6c85f2bd JP |
1878 | static unsigned int team_get_num_tx_queues(void) |
1879 | { | |
1880 | return TEAM_DEFAULT_NUM_TX_QUEUES; | |
1881 | } | |
1882 | ||
1883 | static unsigned int team_get_num_rx_queues(void) | |
1884 | { | |
1885 | return TEAM_DEFAULT_NUM_RX_QUEUES; | |
1886 | } | |
1887 | ||
3d249d4c | 1888 | static struct rtnl_link_ops team_link_ops __read_mostly = { |
6c85f2bd JP |
1889 | .kind = DRV_NAME, |
1890 | .priv_size = sizeof(struct team), | |
1891 | .setup = team_setup, | |
1892 | .newlink = team_newlink, | |
1893 | .validate = team_validate, | |
1894 | .get_num_tx_queues = team_get_num_tx_queues, | |
1895 | .get_num_rx_queues = team_get_num_rx_queues, | |
3d249d4c JP |
1896 | }; |
1897 | ||
1898 | ||
1899 | /*********************************** | |
1900 | * Generic netlink custom interface | |
1901 | ***********************************/ | |
1902 | ||
1903 | static struct genl_family team_nl_family = { | |
1904 | .id = GENL_ID_GENERATE, | |
1905 | .name = TEAM_GENL_NAME, | |
1906 | .version = TEAM_GENL_VERSION, | |
1907 | .maxattr = TEAM_ATTR_MAX, | |
1908 | .netnsok = true, | |
1909 | }; | |
1910 | ||
1911 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { | |
1912 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, | |
1913 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, | |
1914 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, | |
1915 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, | |
1916 | }; | |
1917 | ||
1918 | static const struct nla_policy | |
1919 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { | |
1920 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, | |
1921 | [TEAM_ATTR_OPTION_NAME] = { | |
1922 | .type = NLA_STRING, | |
1923 | .len = TEAM_STRING_MAX_LEN, | |
1924 | }, | |
1925 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, | |
1926 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, | |
2615598f | 1927 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
3d249d4c JP |
1928 | }; |
1929 | ||
1930 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) | |
1931 | { | |
1932 | struct sk_buff *msg; | |
1933 | void *hdr; | |
1934 | int err; | |
1935 | ||
58050fce | 1936 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
1937 | if (!msg) |
1938 | return -ENOMEM; | |
1939 | ||
15e47304 | 1940 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, |
3d249d4c | 1941 | &team_nl_family, 0, TEAM_CMD_NOOP); |
a326e6dd WY |
1942 | if (!hdr) { |
1943 | err = -EMSGSIZE; | |
3d249d4c JP |
1944 | goto err_msg_put; |
1945 | } | |
1946 | ||
1947 | genlmsg_end(msg, hdr); | |
1948 | ||
15e47304 | 1949 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); |
3d249d4c JP |
1950 | |
1951 | err_msg_put: | |
1952 | nlmsg_free(msg); | |
1953 | ||
1954 | return err; | |
1955 | } | |
1956 | ||
1957 | /* | |
1958 | * Netlink cmd functions should be locked by following two functions. | |
8c0713a5 | 1959 | * Since dev gets held here, that ensures dev won't disappear in between. |
3d249d4c JP |
1960 | */ |
1961 | static struct team *team_nl_team_get(struct genl_info *info) | |
1962 | { | |
1963 | struct net *net = genl_info_net(info); | |
1964 | int ifindex; | |
1965 | struct net_device *dev; | |
1966 | struct team *team; | |
1967 | ||
1968 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) | |
1969 | return NULL; | |
1970 | ||
1971 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); | |
8c0713a5 | 1972 | dev = dev_get_by_index(net, ifindex); |
3d249d4c | 1973 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
8c0713a5 JP |
1974 | if (dev) |
1975 | dev_put(dev); | |
3d249d4c JP |
1976 | return NULL; |
1977 | } | |
1978 | ||
1979 | team = netdev_priv(dev); | |
61dc3461 | 1980 | mutex_lock(&team->lock); |
3d249d4c JP |
1981 | return team; |
1982 | } | |
1983 | ||
1984 | static void team_nl_team_put(struct team *team) | |
1985 | { | |
61dc3461 | 1986 | mutex_unlock(&team->lock); |
8c0713a5 | 1987 | dev_put(team->dev); |
3d249d4c JP |
1988 | } |
1989 | ||
9b00cf2d | 1990 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
15e47304 | 1991 | struct team *team, u32 portid); |
9b00cf2d | 1992 | |
15e47304 | 1993 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) |
9b00cf2d | 1994 | { |
15e47304 | 1995 | return genlmsg_unicast(dev_net(team->dev), skb, portid); |
9b00cf2d JP |
1996 | } |
1997 | ||
01048d9a JP |
1998 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
1999 | struct team_option_inst *opt_inst) | |
2000 | { | |
2001 | struct nlattr *option_item; | |
2002 | struct team_option *option = opt_inst->option; | |
9b00cf2d | 2003 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
01048d9a JP |
2004 | struct team_gsetter_ctx ctx; |
2005 | int err; | |
2006 | ||
9b00cf2d JP |
2007 | ctx.info = opt_inst_info; |
2008 | err = team_option_get(team, opt_inst, &ctx); | |
2009 | if (err) | |
2010 | return err; | |
2011 | ||
01048d9a JP |
2012 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
2013 | if (!option_item) | |
9b00cf2d | 2014 | return -EMSGSIZE; |
01048d9a | 2015 | |
9b00cf2d JP |
2016 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
2017 | goto nest_cancel; | |
01048d9a JP |
2018 | if (opt_inst_info->port && |
2019 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, | |
2020 | opt_inst_info->port->dev->ifindex)) | |
9b00cf2d | 2021 | goto nest_cancel; |
01048d9a JP |
2022 | if (opt_inst->option->array_size && |
2023 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, | |
2024 | opt_inst_info->array_index)) | |
9b00cf2d | 2025 | goto nest_cancel; |
01048d9a JP |
2026 | |
2027 | switch (option->type) { | |
2028 | case TEAM_OPTION_TYPE_U32: | |
2029 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) | |
9b00cf2d | 2030 | goto nest_cancel; |
01048d9a | 2031 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
9b00cf2d | 2032 | goto nest_cancel; |
01048d9a JP |
2033 | break; |
2034 | case TEAM_OPTION_TYPE_STRING: | |
2035 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) | |
9b00cf2d | 2036 | goto nest_cancel; |
01048d9a JP |
2037 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
2038 | ctx.data.str_val)) | |
9b00cf2d | 2039 | goto nest_cancel; |
01048d9a JP |
2040 | break; |
2041 | case TEAM_OPTION_TYPE_BINARY: | |
2042 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) | |
9b00cf2d | 2043 | goto nest_cancel; |
01048d9a JP |
2044 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
2045 | ctx.data.bin_val.ptr)) | |
9b00cf2d | 2046 | goto nest_cancel; |
01048d9a JP |
2047 | break; |
2048 | case TEAM_OPTION_TYPE_BOOL: | |
2049 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) | |
9b00cf2d | 2050 | goto nest_cancel; |
01048d9a JP |
2051 | if (ctx.data.bool_val && |
2052 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) | |
9b00cf2d | 2053 | goto nest_cancel; |
01048d9a | 2054 | break; |
69821638 JP |
2055 | case TEAM_OPTION_TYPE_S32: |
2056 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) | |
2057 | goto nest_cancel; | |
2058 | if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) | |
2059 | goto nest_cancel; | |
2060 | break; | |
01048d9a JP |
2061 | default: |
2062 | BUG(); | |
2063 | } | |
9b00cf2d JP |
2064 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
2065 | goto nest_cancel; | |
2066 | if (opt_inst->changed) { | |
2067 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) | |
2068 | goto nest_cancel; | |
2069 | opt_inst->changed = false; | |
2070 | } | |
01048d9a JP |
2071 | nla_nest_end(skb, option_item); |
2072 | return 0; | |
2073 | ||
9b00cf2d JP |
2074 | nest_cancel: |
2075 | nla_nest_cancel(skb, option_item); | |
2076 | return -EMSGSIZE; | |
2077 | } | |
2078 | ||
2079 | static int __send_and_alloc_skb(struct sk_buff **pskb, | |
15e47304 | 2080 | struct team *team, u32 portid, |
9b00cf2d JP |
2081 | team_nl_send_func_t *send_func) |
2082 | { | |
2083 | int err; | |
2084 | ||
2085 | if (*pskb) { | |
15e47304 | 2086 | err = send_func(*pskb, team, portid); |
9b00cf2d JP |
2087 | if (err) |
2088 | return err; | |
2089 | } | |
58050fce | 2090 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9b00cf2d JP |
2091 | if (!*pskb) |
2092 | return -ENOMEM; | |
2093 | return 0; | |
01048d9a JP |
2094 | } |
2095 | ||
15e47304 | 2096 | static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, |
9b00cf2d | 2097 | int flags, team_nl_send_func_t *send_func, |
01048d9a | 2098 | struct list_head *sel_opt_inst_list) |
3d249d4c JP |
2099 | { |
2100 | struct nlattr *option_list; | |
9b00cf2d | 2101 | struct nlmsghdr *nlh; |
3d249d4c | 2102 | void *hdr; |
80f7c668 JP |
2103 | struct team_option_inst *opt_inst; |
2104 | int err; | |
9b00cf2d JP |
2105 | struct sk_buff *skb = NULL; |
2106 | bool incomplete; | |
2107 | int i; | |
3d249d4c | 2108 | |
9b00cf2d JP |
2109 | opt_inst = list_first_entry(sel_opt_inst_list, |
2110 | struct team_option_inst, tmp_list); | |
2111 | ||
2112 | start_again: | |
15e47304 | 2113 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2114 | if (err) |
2115 | return err; | |
2116 | ||
15e47304 | 2117 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
3d249d4c | 2118 | TEAM_CMD_OPTIONS_GET); |
a326e6dd WY |
2119 | if (!hdr) |
2120 | return -EMSGSIZE; | |
3d249d4c | 2121 | |
86ebb02d DM |
2122 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2123 | goto nla_put_failure; | |
3d249d4c JP |
2124 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
2125 | if (!option_list) | |
75db986a | 2126 | goto nla_put_failure; |
3d249d4c | 2127 | |
9b00cf2d JP |
2128 | i = 0; |
2129 | incomplete = false; | |
2130 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { | |
01048d9a | 2131 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
9b00cf2d JP |
2132 | if (err) { |
2133 | if (err == -EMSGSIZE) { | |
2134 | if (!i) | |
2135 | goto errout; | |
2136 | incomplete = true; | |
2137 | break; | |
2138 | } | |
01048d9a | 2139 | goto errout; |
9b00cf2d JP |
2140 | } |
2141 | i++; | |
3d249d4c JP |
2142 | } |
2143 | ||
2144 | nla_nest_end(skb, option_list); | |
9b00cf2d JP |
2145 | genlmsg_end(skb, hdr); |
2146 | if (incomplete) | |
2147 | goto start_again; | |
2148 | ||
2149 | send_done: | |
15e47304 | 2150 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
9b00cf2d | 2151 | if (!nlh) { |
15e47304 | 2152 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2153 | if (err) |
2154 | goto errout; | |
2155 | goto send_done; | |
2156 | } | |
2157 | ||
15e47304 | 2158 | return send_func(skb, team, portid); |
3d249d4c JP |
2159 | |
2160 | nla_put_failure: | |
80f7c668 JP |
2161 | err = -EMSGSIZE; |
2162 | errout: | |
3d249d4c | 2163 | genlmsg_cancel(skb, hdr); |
9b00cf2d | 2164 | nlmsg_free(skb); |
80f7c668 | 2165 | return err; |
3d249d4c JP |
2166 | } |
2167 | ||
3d249d4c JP |
2168 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
2169 | { | |
2170 | struct team *team; | |
9b00cf2d | 2171 | struct team_option_inst *opt_inst; |
3d249d4c | 2172 | int err; |
9b00cf2d | 2173 | LIST_HEAD(sel_opt_inst_list); |
3d249d4c JP |
2174 | |
2175 | team = team_nl_team_get(info); | |
2176 | if (!team) | |
2177 | return -EINVAL; | |
2178 | ||
9b00cf2d JP |
2179 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
2180 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
15e47304 | 2181 | err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, |
9b00cf2d JP |
2182 | NLM_F_ACK, team_nl_send_unicast, |
2183 | &sel_opt_inst_list); | |
3d249d4c JP |
2184 | |
2185 | team_nl_team_put(team); | |
2186 | ||
2187 | return err; | |
2188 | } | |
2189 | ||
2fcdb2c9 JP |
2190 | static int team_nl_send_event_options_get(struct team *team, |
2191 | struct list_head *sel_opt_inst_list); | |
2192 | ||
3d249d4c JP |
2193 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
2194 | { | |
2195 | struct team *team; | |
2196 | int err = 0; | |
2197 | int i; | |
2198 | struct nlattr *nl_option; | |
2fcdb2c9 | 2199 | LIST_HEAD(opt_inst_list); |
3d249d4c JP |
2200 | |
2201 | team = team_nl_team_get(info); | |
2202 | if (!team) | |
2203 | return -EINVAL; | |
2204 | ||
2205 | err = -EINVAL; | |
2206 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { | |
2207 | err = -EINVAL; | |
2208 | goto team_put; | |
2209 | } | |
2210 | ||
2211 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { | |
80f7c668 | 2212 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
b1303326 | 2213 | struct nlattr *attr; |
14f066ba | 2214 | struct nlattr *attr_data; |
3d249d4c | 2215 | enum team_option_type opt_type; |
80f7c668 | 2216 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
b1303326 JP |
2217 | u32 opt_array_index = 0; |
2218 | bool opt_is_array = false; | |
80f7c668 | 2219 | struct team_option_inst *opt_inst; |
3d249d4c JP |
2220 | char *opt_name; |
2221 | bool opt_found = false; | |
2222 | ||
2223 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { | |
2224 | err = -EINVAL; | |
2225 | goto team_put; | |
2226 | } | |
80f7c668 | 2227 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
3d249d4c JP |
2228 | nl_option, team_nl_option_policy); |
2229 | if (err) | |
2230 | goto team_put; | |
80f7c668 | 2231 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
14f066ba | 2232 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
3d249d4c JP |
2233 | err = -EINVAL; |
2234 | goto team_put; | |
2235 | } | |
80f7c668 | 2236 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
3d249d4c JP |
2237 | case NLA_U32: |
2238 | opt_type = TEAM_OPTION_TYPE_U32; | |
2239 | break; | |
2240 | case NLA_STRING: | |
2241 | opt_type = TEAM_OPTION_TYPE_STRING; | |
2242 | break; | |
2615598f JP |
2243 | case NLA_BINARY: |
2244 | opt_type = TEAM_OPTION_TYPE_BINARY; | |
2245 | break; | |
14f066ba JP |
2246 | case NLA_FLAG: |
2247 | opt_type = TEAM_OPTION_TYPE_BOOL; | |
2248 | break; | |
69821638 JP |
2249 | case NLA_S32: |
2250 | opt_type = TEAM_OPTION_TYPE_S32; | |
2251 | break; | |
3d249d4c JP |
2252 | default: |
2253 | goto team_put; | |
2254 | } | |
2255 | ||
14f066ba JP |
2256 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
2257 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { | |
2258 | err = -EINVAL; | |
2259 | goto team_put; | |
2260 | } | |
2261 | ||
80f7c668 | 2262 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
b1303326 JP |
2263 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
2264 | if (attr) | |
2265 | opt_port_ifindex = nla_get_u32(attr); | |
2266 | ||
2267 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; | |
2268 | if (attr) { | |
2269 | opt_is_array = true; | |
2270 | opt_array_index = nla_get_u32(attr); | |
2271 | } | |
80f7c668 JP |
2272 | |
2273 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
2274 | struct team_option *option = opt_inst->option; | |
80f7c668 | 2275 | struct team_gsetter_ctx ctx; |
85d59a87 | 2276 | struct team_option_inst_info *opt_inst_info; |
80f7c668 | 2277 | int tmp_ifindex; |
3d249d4c | 2278 | |
85d59a87 JP |
2279 | opt_inst_info = &opt_inst->info; |
2280 | tmp_ifindex = opt_inst_info->port ? | |
2281 | opt_inst_info->port->dev->ifindex : 0; | |
3d249d4c | 2282 | if (option->type != opt_type || |
80f7c668 | 2283 | strcmp(option->name, opt_name) || |
b1303326 JP |
2284 | tmp_ifindex != opt_port_ifindex || |
2285 | (option->array_size && !opt_is_array) || | |
85d59a87 | 2286 | opt_inst_info->array_index != opt_array_index) |
3d249d4c JP |
2287 | continue; |
2288 | opt_found = true; | |
85d59a87 | 2289 | ctx.info = opt_inst_info; |
3d249d4c JP |
2290 | switch (opt_type) { |
2291 | case TEAM_OPTION_TYPE_U32: | |
14f066ba | 2292 | ctx.data.u32_val = nla_get_u32(attr_data); |
3d249d4c JP |
2293 | break; |
2294 | case TEAM_OPTION_TYPE_STRING: | |
14f066ba | 2295 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
2615598f JP |
2296 | err = -EINVAL; |
2297 | goto team_put; | |
2298 | } | |
14f066ba | 2299 | ctx.data.str_val = nla_data(attr_data); |
3d249d4c | 2300 | break; |
2615598f | 2301 | case TEAM_OPTION_TYPE_BINARY: |
14f066ba JP |
2302 | ctx.data.bin_val.len = nla_len(attr_data); |
2303 | ctx.data.bin_val.ptr = nla_data(attr_data); | |
2304 | break; | |
2305 | case TEAM_OPTION_TYPE_BOOL: | |
2306 | ctx.data.bool_val = attr_data ? true : false; | |
2615598f | 2307 | break; |
69821638 JP |
2308 | case TEAM_OPTION_TYPE_S32: |
2309 | ctx.data.s32_val = nla_get_s32(attr_data); | |
2310 | break; | |
3d249d4c JP |
2311 | default: |
2312 | BUG(); | |
2313 | } | |
80f7c668 | 2314 | err = team_option_set(team, opt_inst, &ctx); |
3d249d4c JP |
2315 | if (err) |
2316 | goto team_put; | |
2fcdb2c9 JP |
2317 | opt_inst->changed = true; |
2318 | list_add(&opt_inst->tmp_list, &opt_inst_list); | |
3d249d4c JP |
2319 | } |
2320 | if (!opt_found) { | |
2321 | err = -ENOENT; | |
2322 | goto team_put; | |
2323 | } | |
2324 | } | |
2325 | ||
2fcdb2c9 JP |
2326 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
2327 | ||
3d249d4c JP |
2328 | team_put: |
2329 | team_nl_team_put(team); | |
2330 | ||
2331 | return err; | |
2332 | } | |
2333 | ||
d90f889e JP |
2334 | static int team_nl_fill_one_port_get(struct sk_buff *skb, |
2335 | struct team_port *port) | |
2336 | { | |
2337 | struct nlattr *port_item; | |
2338 | ||
2339 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); | |
2340 | if (!port_item) | |
2341 | goto nest_cancel; | |
2342 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) | |
2343 | goto nest_cancel; | |
2344 | if (port->changed) { | |
2345 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) | |
2346 | goto nest_cancel; | |
2347 | port->changed = false; | |
2348 | } | |
2349 | if ((port->removed && | |
2350 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || | |
2351 | (port->state.linkup && | |
2352 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || | |
2353 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || | |
2354 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) | |
2355 | goto nest_cancel; | |
2356 | nla_nest_end(skb, port_item); | |
2357 | return 0; | |
2358 | ||
2359 | nest_cancel: | |
2360 | nla_nest_cancel(skb, port_item); | |
2361 | return -EMSGSIZE; | |
2362 | } | |
2363 | ||
2364 | static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, | |
2365 | int flags, team_nl_send_func_t *send_func, | |
2366 | struct team_port *one_port) | |
3d249d4c JP |
2367 | { |
2368 | struct nlattr *port_list; | |
d90f889e | 2369 | struct nlmsghdr *nlh; |
3d249d4c JP |
2370 | void *hdr; |
2371 | struct team_port *port; | |
d90f889e JP |
2372 | int err; |
2373 | struct sk_buff *skb = NULL; | |
2374 | bool incomplete; | |
2375 | int i; | |
3d249d4c | 2376 | |
d90f889e JP |
2377 | port = list_first_entry(&team->port_list, struct team_port, list); |
2378 | ||
2379 | start_again: | |
2380 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2381 | if (err) | |
2382 | return err; | |
2383 | ||
2384 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, | |
3d249d4c | 2385 | TEAM_CMD_PORT_LIST_GET); |
a326e6dd WY |
2386 | if (!hdr) |
2387 | return -EMSGSIZE; | |
3d249d4c | 2388 | |
86ebb02d DM |
2389 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2390 | goto nla_put_failure; | |
3d249d4c JP |
2391 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
2392 | if (!port_list) | |
3221c646 | 2393 | goto nla_put_failure; |
3d249d4c | 2394 | |
d90f889e JP |
2395 | i = 0; |
2396 | incomplete = false; | |
3d249d4c | 2397 | |
d90f889e JP |
2398 | /* If one port is selected, called wants to send port list containing |
2399 | * only this port. Otherwise go through all listed ports and send all | |
2400 | */ | |
2401 | if (one_port) { | |
2402 | err = team_nl_fill_one_port_get(skb, one_port); | |
2403 | if (err) | |
2404 | goto errout; | |
2405 | } else { | |
2406 | list_for_each_entry(port, &team->port_list, list) { | |
2407 | err = team_nl_fill_one_port_get(skb, port); | |
2408 | if (err) { | |
2409 | if (err == -EMSGSIZE) { | |
2410 | if (!i) | |
2411 | goto errout; | |
2412 | incomplete = true; | |
2413 | break; | |
2414 | } | |
2415 | goto errout; | |
2416 | } | |
2417 | i++; | |
b82b9183 | 2418 | } |
3d249d4c JP |
2419 | } |
2420 | ||
2421 | nla_nest_end(skb, port_list); | |
d90f889e JP |
2422 | genlmsg_end(skb, hdr); |
2423 | if (incomplete) | |
2424 | goto start_again; | |
2425 | ||
2426 | send_done: | |
2427 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2428 | if (!nlh) { | |
2429 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2430 | if (err) | |
2431 | goto errout; | |
2432 | goto send_done; | |
2433 | } | |
2434 | ||
2435 | return send_func(skb, team, portid); | |
3d249d4c JP |
2436 | |
2437 | nla_put_failure: | |
d90f889e JP |
2438 | err = -EMSGSIZE; |
2439 | errout: | |
3d249d4c | 2440 | genlmsg_cancel(skb, hdr); |
d90f889e JP |
2441 | nlmsg_free(skb); |
2442 | return err; | |
3d249d4c JP |
2443 | } |
2444 | ||
2445 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, | |
2446 | struct genl_info *info) | |
2447 | { | |
2448 | struct team *team; | |
2449 | int err; | |
2450 | ||
2451 | team = team_nl_team_get(info); | |
2452 | if (!team) | |
2453 | return -EINVAL; | |
2454 | ||
d90f889e JP |
2455 | err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, |
2456 | NLM_F_ACK, team_nl_send_unicast, NULL); | |
3d249d4c JP |
2457 | |
2458 | team_nl_team_put(team); | |
2459 | ||
2460 | return err; | |
2461 | } | |
2462 | ||
2463 | static struct genl_ops team_nl_ops[] = { | |
2464 | { | |
2465 | .cmd = TEAM_CMD_NOOP, | |
2466 | .doit = team_nl_cmd_noop, | |
2467 | .policy = team_nl_policy, | |
2468 | }, | |
2469 | { | |
2470 | .cmd = TEAM_CMD_OPTIONS_SET, | |
2471 | .doit = team_nl_cmd_options_set, | |
2472 | .policy = team_nl_policy, | |
2473 | .flags = GENL_ADMIN_PERM, | |
2474 | }, | |
2475 | { | |
2476 | .cmd = TEAM_CMD_OPTIONS_GET, | |
2477 | .doit = team_nl_cmd_options_get, | |
2478 | .policy = team_nl_policy, | |
2479 | .flags = GENL_ADMIN_PERM, | |
2480 | }, | |
2481 | { | |
2482 | .cmd = TEAM_CMD_PORT_LIST_GET, | |
2483 | .doit = team_nl_cmd_port_list_get, | |
2484 | .policy = team_nl_policy, | |
2485 | .flags = GENL_ADMIN_PERM, | |
2486 | }, | |
2487 | }; | |
2488 | ||
2489 | static struct genl_multicast_group team_change_event_mcgrp = { | |
2490 | .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, | |
2491 | }; | |
2492 | ||
9b00cf2d | 2493 | static int team_nl_send_multicast(struct sk_buff *skb, |
15e47304 | 2494 | struct team *team, u32 portid) |
9b00cf2d JP |
2495 | { |
2496 | return genlmsg_multicast_netns(dev_net(team->dev), skb, 0, | |
2497 | team_change_event_mcgrp.id, GFP_KERNEL); | |
2498 | } | |
2499 | ||
01048d9a JP |
2500 | static int team_nl_send_event_options_get(struct team *team, |
2501 | struct list_head *sel_opt_inst_list) | |
3d249d4c | 2502 | { |
9b00cf2d JP |
2503 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
2504 | sel_opt_inst_list); | |
3d249d4c JP |
2505 | } |
2506 | ||
d90f889e JP |
2507 | static int team_nl_send_event_port_get(struct team *team, |
2508 | struct team_port *port) | |
3d249d4c | 2509 | { |
d90f889e JP |
2510 | return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, |
2511 | port); | |
3d249d4c JP |
2512 | } |
2513 | ||
2514 | static int team_nl_init(void) | |
2515 | { | |
2516 | int err; | |
2517 | ||
2518 | err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, | |
2519 | ARRAY_SIZE(team_nl_ops)); | |
2520 | if (err) | |
2521 | return err; | |
2522 | ||
2523 | err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); | |
2524 | if (err) | |
2525 | goto err_change_event_grp_reg; | |
2526 | ||
2527 | return 0; | |
2528 | ||
2529 | err_change_event_grp_reg: | |
2530 | genl_unregister_family(&team_nl_family); | |
2531 | ||
2532 | return err; | |
2533 | } | |
2534 | ||
2535 | static void team_nl_fini(void) | |
2536 | { | |
2537 | genl_unregister_family(&team_nl_family); | |
2538 | } | |
2539 | ||
2540 | ||
2541 | /****************** | |
2542 | * Change checkers | |
2543 | ******************/ | |
2544 | ||
b82b9183 | 2545 | static void __team_options_change_check(struct team *team) |
3d249d4c JP |
2546 | { |
2547 | int err; | |
01048d9a JP |
2548 | struct team_option_inst *opt_inst; |
2549 | LIST_HEAD(sel_opt_inst_list); | |
3d249d4c | 2550 | |
01048d9a JP |
2551 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
2552 | if (opt_inst->changed) | |
2553 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
2554 | } | |
2555 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); | |
0c7517e9 | 2556 | if (err && err != -ESRCH) |
9b00cf2d JP |
2557 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
2558 | err); | |
3d249d4c JP |
2559 | } |
2560 | ||
2561 | /* rtnl lock is held */ | |
10f3f51d JP |
2562 | |
2563 | static void __team_port_change_send(struct team_port *port, bool linkup) | |
3d249d4c JP |
2564 | { |
2565 | int err; | |
2566 | ||
b82b9183 | 2567 | port->changed = true; |
71472ec1 JP |
2568 | port->state.linkup = linkup; |
2569 | team_refresh_port_linkup(port); | |
3d249d4c JP |
2570 | if (linkup) { |
2571 | struct ethtool_cmd ecmd; | |
2572 | ||
2573 | err = __ethtool_get_settings(port->dev, &ecmd); | |
2574 | if (!err) { | |
71472ec1 JP |
2575 | port->state.speed = ethtool_cmd_speed(&ecmd); |
2576 | port->state.duplex = ecmd.duplex; | |
3d249d4c JP |
2577 | goto send_event; |
2578 | } | |
2579 | } | |
71472ec1 JP |
2580 | port->state.speed = 0; |
2581 | port->state.duplex = 0; | |
3d249d4c JP |
2582 | |
2583 | send_event: | |
d90f889e | 2584 | err = team_nl_send_event_port_get(port->team, port); |
0c7517e9 JP |
2585 | if (err && err != -ESRCH) |
2586 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", | |
2587 | port->dev->name, err); | |
3d249d4c JP |
2588 | |
2589 | } | |
2590 | ||
06a7fc42 FL |
2591 | static void __team_carrier_check(struct team *team) |
2592 | { | |
2593 | struct team_port *port; | |
2594 | bool team_linkup; | |
2595 | ||
e185483e FL |
2596 | if (team->user_carrier_enabled) |
2597 | return; | |
2598 | ||
06a7fc42 FL |
2599 | team_linkup = false; |
2600 | list_for_each_entry(port, &team->port_list, list) { | |
2601 | if (port->linkup) { | |
2602 | team_linkup = true; | |
2603 | break; | |
2604 | } | |
2605 | } | |
2606 | ||
2607 | if (team_linkup) | |
2608 | netif_carrier_on(team->dev); | |
2609 | else | |
2610 | netif_carrier_off(team->dev); | |
2611 | } | |
2612 | ||
10f3f51d JP |
2613 | static void __team_port_change_check(struct team_port *port, bool linkup) |
2614 | { | |
2615 | if (port->state.linkup != linkup) | |
2616 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2617 | __team_carrier_check(port->team); |
10f3f51d JP |
2618 | } |
2619 | ||
2620 | static void __team_port_change_port_added(struct team_port *port, bool linkup) | |
2621 | { | |
2622 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2623 | __team_carrier_check(port->team); |
10f3f51d JP |
2624 | } |
2625 | ||
2626 | static void __team_port_change_port_removed(struct team_port *port) | |
2627 | { | |
2628 | port->removed = true; | |
2629 | __team_port_change_send(port, false); | |
06a7fc42 | 2630 | __team_carrier_check(port->team); |
10f3f51d JP |
2631 | } |
2632 | ||
3d249d4c JP |
2633 | static void team_port_change_check(struct team_port *port, bool linkup) |
2634 | { | |
2635 | struct team *team = port->team; | |
2636 | ||
61dc3461 | 2637 | mutex_lock(&team->lock); |
3d249d4c | 2638 | __team_port_change_check(port, linkup); |
61dc3461 | 2639 | mutex_unlock(&team->lock); |
3d249d4c JP |
2640 | } |
2641 | ||
0f1aad2b | 2642 | |
3d249d4c JP |
2643 | /************************************ |
2644 | * Net device notifier event handler | |
2645 | ************************************/ | |
2646 | ||
2647 | static int team_device_event(struct notifier_block *unused, | |
2648 | unsigned long event, void *ptr) | |
2649 | { | |
2650 | struct net_device *dev = (struct net_device *) ptr; | |
2651 | struct team_port *port; | |
2652 | ||
2653 | port = team_port_get_rtnl(dev); | |
2654 | if (!port) | |
2655 | return NOTIFY_DONE; | |
2656 | ||
2657 | switch (event) { | |
2658 | case NETDEV_UP: | |
2659 | if (netif_carrier_ok(dev)) | |
2660 | team_port_change_check(port, true); | |
2661 | case NETDEV_DOWN: | |
2662 | team_port_change_check(port, false); | |
2663 | case NETDEV_CHANGE: | |
2664 | if (netif_running(port->dev)) | |
2665 | team_port_change_check(port, | |
2666 | !!netif_carrier_ok(port->dev)); | |
2667 | break; | |
2668 | case NETDEV_UNREGISTER: | |
2669 | team_del_slave(port->team->dev, dev); | |
2670 | break; | |
2671 | case NETDEV_FEAT_CHANGE: | |
2672 | team_compute_features(port->team); | |
2673 | break; | |
2674 | case NETDEV_CHANGEMTU: | |
2675 | /* Forbid to change mtu of underlaying device */ | |
2676 | return NOTIFY_BAD; | |
2677 | case NETDEV_PRE_TYPE_CHANGE: | |
2678 | /* Forbid to change type of underlaying device */ | |
2679 | return NOTIFY_BAD; | |
2680 | } | |
2681 | return NOTIFY_DONE; | |
2682 | } | |
2683 | ||
2684 | static struct notifier_block team_notifier_block __read_mostly = { | |
2685 | .notifier_call = team_device_event, | |
2686 | }; | |
2687 | ||
2688 | ||
2689 | /*********************** | |
2690 | * Module init and exit | |
2691 | ***********************/ | |
2692 | ||
2693 | static int __init team_module_init(void) | |
2694 | { | |
2695 | int err; | |
2696 | ||
2697 | register_netdevice_notifier(&team_notifier_block); | |
2698 | ||
2699 | err = rtnl_link_register(&team_link_ops); | |
2700 | if (err) | |
2701 | goto err_rtnl_reg; | |
2702 | ||
2703 | err = team_nl_init(); | |
2704 | if (err) | |
2705 | goto err_nl_init; | |
2706 | ||
2707 | return 0; | |
2708 | ||
2709 | err_nl_init: | |
2710 | rtnl_link_unregister(&team_link_ops); | |
2711 | ||
2712 | err_rtnl_reg: | |
2713 | unregister_netdevice_notifier(&team_notifier_block); | |
2714 | ||
2715 | return err; | |
2716 | } | |
2717 | ||
2718 | static void __exit team_module_exit(void) | |
2719 | { | |
2720 | team_nl_fini(); | |
2721 | rtnl_link_unregister(&team_link_ops); | |
2722 | unregister_netdevice_notifier(&team_notifier_block); | |
2723 | } | |
2724 | ||
2725 | module_init(team_module_init); | |
2726 | module_exit(team_module_exit); | |
2727 | ||
2728 | MODULE_LICENSE("GPL v2"); | |
2729 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
2730 | MODULE_DESCRIPTION("Ethernet team device driver"); | |
2731 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |