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 | { | |
55fde24a | 45 | return rcu_dereference(dev->rx_handler_data); |
3d249d4c JP |
46 | } |
47 | ||
48 | static struct team_port *team_port_get_rtnl(const struct net_device *dev) | |
49 | { | |
50 | struct team_port *port = rtnl_dereference(dev->rx_handler_data); | |
51 | ||
52 | return team_port_exists(dev) ? port : NULL; | |
53 | } | |
54 | ||
55 | /* | |
1d76efe1 | 56 | * Since the ability to change device address for open port device is tested in |
3d249d4c JP |
57 | * team_port_add, this function can be called without control of return value |
58 | */ | |
1d76efe1 JP |
59 | static int __set_port_dev_addr(struct net_device *port_dev, |
60 | const unsigned char *dev_addr) | |
3d249d4c JP |
61 | { |
62 | struct sockaddr addr; | |
63 | ||
1d76efe1 JP |
64 | memcpy(addr.sa_data, dev_addr, port_dev->addr_len); |
65 | addr.sa_family = port_dev->type; | |
3d249d4c JP |
66 | return dev_set_mac_address(port_dev, &addr); |
67 | } | |
68 | ||
1d76efe1 | 69 | static int team_port_set_orig_dev_addr(struct team_port *port) |
3d249d4c | 70 | { |
1d76efe1 | 71 | return __set_port_dev_addr(port->dev, port->orig.dev_addr); |
3d249d4c JP |
72 | } |
73 | ||
acbba0d0 JP |
74 | static int team_port_set_team_dev_addr(struct team *team, |
75 | struct team_port *port) | |
3d249d4c | 76 | { |
acbba0d0 | 77 | return __set_port_dev_addr(port->dev, team->dev->dev_addr); |
3d249d4c | 78 | } |
acbba0d0 JP |
79 | |
80 | int team_modeop_port_enter(struct team *team, struct team_port *port) | |
81 | { | |
82 | return team_port_set_team_dev_addr(team, port); | |
83 | } | |
84 | EXPORT_SYMBOL(team_modeop_port_enter); | |
85 | ||
86 | void team_modeop_port_change_dev_addr(struct team *team, | |
87 | struct team_port *port) | |
88 | { | |
89 | team_port_set_team_dev_addr(team, port); | |
90 | } | |
91 | EXPORT_SYMBOL(team_modeop_port_change_dev_addr); | |
3d249d4c | 92 | |
71472ec1 JP |
93 | static void team_refresh_port_linkup(struct team_port *port) |
94 | { | |
95 | port->linkup = port->user.linkup_enabled ? port->user.linkup : | |
96 | port->state.linkup; | |
97 | } | |
3d249d4c | 98 | |
0f1aad2b | 99 | |
3d249d4c JP |
100 | /******************* |
101 | * Options handling | |
102 | *******************/ | |
103 | ||
80f7c668 JP |
104 | struct team_option_inst { /* One for each option instance */ |
105 | struct list_head list; | |
01048d9a | 106 | struct list_head tmp_list; |
80f7c668 | 107 | struct team_option *option; |
85d59a87 | 108 | struct team_option_inst_info info; |
80f7c668 JP |
109 | bool changed; |
110 | bool removed; | |
111 | }; | |
112 | ||
113 | static struct team_option *__team_find_option(struct team *team, | |
114 | const char *opt_name) | |
358b8382 JP |
115 | { |
116 | struct team_option *option; | |
117 | ||
118 | list_for_each_entry(option, &team->option_list, list) { | |
119 | if (strcmp(option->name, opt_name) == 0) | |
120 | return option; | |
121 | } | |
122 | return NULL; | |
123 | } | |
124 | ||
80f7c668 JP |
125 | static void __team_option_inst_del(struct team_option_inst *opt_inst) |
126 | { | |
127 | list_del(&opt_inst->list); | |
128 | kfree(opt_inst); | |
129 | } | |
130 | ||
131 | static void __team_option_inst_del_option(struct team *team, | |
132 | struct team_option *option) | |
133 | { | |
134 | struct team_option_inst *opt_inst, *tmp; | |
135 | ||
136 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
137 | if (opt_inst->option == option) | |
138 | __team_option_inst_del(opt_inst); | |
139 | } | |
140 | } | |
141 | ||
b1303326 JP |
142 | static int __team_option_inst_add(struct team *team, struct team_option *option, |
143 | struct team_port *port) | |
144 | { | |
145 | struct team_option_inst *opt_inst; | |
146 | unsigned int array_size; | |
147 | unsigned int i; | |
85d59a87 | 148 | int err; |
b1303326 JP |
149 | |
150 | array_size = option->array_size; | |
151 | if (!array_size) | |
152 | array_size = 1; /* No array but still need one instance */ | |
153 | ||
154 | for (i = 0; i < array_size; i++) { | |
155 | opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); | |
156 | if (!opt_inst) | |
157 | return -ENOMEM; | |
158 | opt_inst->option = option; | |
85d59a87 JP |
159 | opt_inst->info.port = port; |
160 | opt_inst->info.array_index = i; | |
b1303326 JP |
161 | opt_inst->changed = true; |
162 | opt_inst->removed = false; | |
163 | list_add_tail(&opt_inst->list, &team->option_inst_list); | |
85d59a87 JP |
164 | if (option->init) { |
165 | err = option->init(team, &opt_inst->info); | |
166 | if (err) | |
167 | return err; | |
168 | } | |
169 | ||
b1303326 JP |
170 | } |
171 | return 0; | |
172 | } | |
173 | ||
80f7c668 JP |
174 | static int __team_option_inst_add_option(struct team *team, |
175 | struct team_option *option) | |
176 | { | |
177 | struct team_port *port; | |
178 | int err; | |
179 | ||
b1303326 | 180 | if (!option->per_port) { |
f88725ff | 181 | err = __team_option_inst_add(team, option, NULL); |
b1303326 JP |
182 | if (err) |
183 | goto inst_del_option; | |
184 | } | |
80f7c668 JP |
185 | |
186 | list_for_each_entry(port, &team->port_list, list) { | |
187 | err = __team_option_inst_add(team, option, port); | |
188 | if (err) | |
189 | goto inst_del_option; | |
190 | } | |
191 | return 0; | |
192 | ||
193 | inst_del_option: | |
194 | __team_option_inst_del_option(team, option); | |
195 | return err; | |
196 | } | |
197 | ||
198 | static void __team_option_inst_mark_removed_option(struct team *team, | |
199 | struct team_option *option) | |
200 | { | |
201 | struct team_option_inst *opt_inst; | |
202 | ||
203 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
204 | if (opt_inst->option == option) { | |
205 | opt_inst->changed = true; | |
206 | opt_inst->removed = true; | |
207 | } | |
208 | } | |
209 | } | |
210 | ||
211 | static void __team_option_inst_del_port(struct team *team, | |
212 | struct team_port *port) | |
213 | { | |
214 | struct team_option_inst *opt_inst, *tmp; | |
215 | ||
216 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
217 | if (opt_inst->option->per_port && | |
85d59a87 | 218 | opt_inst->info.port == port) |
80f7c668 JP |
219 | __team_option_inst_del(opt_inst); |
220 | } | |
221 | } | |
222 | ||
223 | static int __team_option_inst_add_port(struct team *team, | |
224 | struct team_port *port) | |
225 | { | |
226 | struct team_option *option; | |
227 | int err; | |
228 | ||
229 | list_for_each_entry(option, &team->option_list, list) { | |
230 | if (!option->per_port) | |
231 | continue; | |
232 | err = __team_option_inst_add(team, option, port); | |
233 | if (err) | |
234 | goto inst_del_port; | |
235 | } | |
236 | return 0; | |
237 | ||
238 | inst_del_port: | |
239 | __team_option_inst_del_port(team, port); | |
240 | return err; | |
241 | } | |
242 | ||
243 | static void __team_option_inst_mark_removed_port(struct team *team, | |
244 | struct team_port *port) | |
245 | { | |
246 | struct team_option_inst *opt_inst; | |
247 | ||
248 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
85d59a87 | 249 | if (opt_inst->info.port == port) { |
80f7c668 JP |
250 | opt_inst->changed = true; |
251 | opt_inst->removed = true; | |
252 | } | |
253 | } | |
254 | } | |
255 | ||
256 | static int __team_options_register(struct team *team, | |
257 | const struct team_option *option, | |
258 | size_t option_count) | |
3d249d4c JP |
259 | { |
260 | int i; | |
2bba19ff | 261 | struct team_option **dst_opts; |
358b8382 | 262 | int err; |
3d249d4c | 263 | |
2bba19ff JP |
264 | dst_opts = kzalloc(sizeof(struct team_option *) * option_count, |
265 | GFP_KERNEL); | |
266 | if (!dst_opts) | |
267 | return -ENOMEM; | |
358b8382 | 268 | for (i = 0; i < option_count; i++, option++) { |
358b8382 JP |
269 | if (__team_find_option(team, option->name)) { |
270 | err = -EEXIST; | |
80f7c668 | 271 | goto alloc_rollback; |
358b8382 | 272 | } |
f8a15af0 JP |
273 | dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); |
274 | if (!dst_opts[i]) { | |
358b8382 | 275 | err = -ENOMEM; |
80f7c668 | 276 | goto alloc_rollback; |
358b8382 | 277 | } |
358b8382 JP |
278 | } |
279 | ||
b82b9183 | 280 | for (i = 0; i < option_count; i++) { |
80f7c668 JP |
281 | err = __team_option_inst_add_option(team, dst_opts[i]); |
282 | if (err) | |
283 | goto inst_rollback; | |
358b8382 | 284 | list_add_tail(&dst_opts[i]->list, &team->option_list); |
b82b9183 | 285 | } |
358b8382 | 286 | |
2bba19ff | 287 | kfree(dst_opts); |
358b8382 JP |
288 | return 0; |
289 | ||
80f7c668 JP |
290 | inst_rollback: |
291 | for (i--; i >= 0; i--) | |
292 | __team_option_inst_del_option(team, dst_opts[i]); | |
293 | ||
294 | i = option_count - 1; | |
295 | alloc_rollback: | |
296 | for (i--; i >= 0; i--) | |
358b8382 JP |
297 | kfree(dst_opts[i]); |
298 | ||
2bba19ff | 299 | kfree(dst_opts); |
358b8382 | 300 | return err; |
3d249d4c | 301 | } |
358b8382 | 302 | |
b82b9183 JP |
303 | static void __team_options_mark_removed(struct team *team, |
304 | const struct team_option *option, | |
305 | size_t option_count) | |
306 | { | |
307 | int i; | |
308 | ||
309 | for (i = 0; i < option_count; i++, option++) { | |
310 | struct team_option *del_opt; | |
3d249d4c | 311 | |
b82b9183 | 312 | del_opt = __team_find_option(team, option->name); |
80f7c668 JP |
313 | if (del_opt) |
314 | __team_option_inst_mark_removed_option(team, del_opt); | |
b82b9183 JP |
315 | } |
316 | } | |
3d249d4c JP |
317 | |
318 | static void __team_options_unregister(struct team *team, | |
358b8382 | 319 | const struct team_option *option, |
3d249d4c JP |
320 | size_t option_count) |
321 | { | |
322 | int i; | |
323 | ||
358b8382 JP |
324 | for (i = 0; i < option_count; i++, option++) { |
325 | struct team_option *del_opt; | |
326 | ||
327 | del_opt = __team_find_option(team, option->name); | |
328 | if (del_opt) { | |
80f7c668 | 329 | __team_option_inst_del_option(team, del_opt); |
358b8382 JP |
330 | list_del(&del_opt->list); |
331 | kfree(del_opt); | |
332 | } | |
333 | } | |
3d249d4c JP |
334 | } |
335 | ||
b82b9183 JP |
336 | static void __team_options_change_check(struct team *team); |
337 | ||
338 | int team_options_register(struct team *team, | |
339 | const struct team_option *option, | |
340 | size_t option_count) | |
341 | { | |
342 | int err; | |
343 | ||
344 | err = __team_options_register(team, option, option_count); | |
345 | if (err) | |
346 | return err; | |
347 | __team_options_change_check(team); | |
348 | return 0; | |
349 | } | |
350 | EXPORT_SYMBOL(team_options_register); | |
351 | ||
358b8382 JP |
352 | void team_options_unregister(struct team *team, |
353 | const struct team_option *option, | |
3d249d4c JP |
354 | size_t option_count) |
355 | { | |
b82b9183 JP |
356 | __team_options_mark_removed(team, option, option_count); |
357 | __team_options_change_check(team); | |
3d249d4c | 358 | __team_options_unregister(team, option, option_count); |
3d249d4c JP |
359 | } |
360 | EXPORT_SYMBOL(team_options_unregister); | |
361 | ||
80f7c668 JP |
362 | static int team_option_get(struct team *team, |
363 | struct team_option_inst *opt_inst, | |
364 | struct team_gsetter_ctx *ctx) | |
365 | { | |
f82b959d JP |
366 | if (!opt_inst->option->getter) |
367 | return -EOPNOTSUPP; | |
80f7c668 JP |
368 | return opt_inst->option->getter(team, ctx); |
369 | } | |
370 | ||
371 | static int team_option_set(struct team *team, | |
372 | struct team_option_inst *opt_inst, | |
373 | struct team_gsetter_ctx *ctx) | |
3d249d4c | 374 | { |
f82b959d JP |
375 | if (!opt_inst->option->setter) |
376 | return -EOPNOTSUPP; | |
2fcdb2c9 | 377 | return opt_inst->option->setter(team, ctx); |
3d249d4c JP |
378 | } |
379 | ||
0f1aad2b JP |
380 | void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) |
381 | { | |
382 | struct team_option_inst *opt_inst; | |
383 | ||
384 | opt_inst = container_of(opt_inst_info, struct team_option_inst, info); | |
385 | opt_inst->changed = true; | |
386 | } | |
387 | EXPORT_SYMBOL(team_option_inst_set_change); | |
388 | ||
389 | void team_options_change_check(struct team *team) | |
390 | { | |
391 | __team_options_change_check(team); | |
392 | } | |
393 | EXPORT_SYMBOL(team_options_change_check); | |
394 | ||
395 | ||
3d249d4c JP |
396 | /**************** |
397 | * Mode handling | |
398 | ****************/ | |
399 | ||
400 | static LIST_HEAD(mode_list); | |
401 | static DEFINE_SPINLOCK(mode_list_lock); | |
402 | ||
0402788a JP |
403 | struct team_mode_item { |
404 | struct list_head list; | |
405 | const struct team_mode *mode; | |
406 | }; | |
407 | ||
408 | static struct team_mode_item *__find_mode(const char *kind) | |
3d249d4c | 409 | { |
0402788a | 410 | struct team_mode_item *mitem; |
3d249d4c | 411 | |
0402788a JP |
412 | list_for_each_entry(mitem, &mode_list, list) { |
413 | if (strcmp(mitem->mode->kind, kind) == 0) | |
414 | return mitem; | |
3d249d4c JP |
415 | } |
416 | return NULL; | |
417 | } | |
418 | ||
419 | static bool is_good_mode_name(const char *name) | |
420 | { | |
421 | while (*name != '\0') { | |
422 | if (!isalpha(*name) && !isdigit(*name) && *name != '_') | |
423 | return false; | |
424 | name++; | |
425 | } | |
426 | return true; | |
427 | } | |
428 | ||
0402788a | 429 | int team_mode_register(const struct team_mode *mode) |
3d249d4c JP |
430 | { |
431 | int err = 0; | |
0402788a | 432 | struct team_mode_item *mitem; |
3d249d4c JP |
433 | |
434 | if (!is_good_mode_name(mode->kind) || | |
435 | mode->priv_size > TEAM_MODE_PRIV_SIZE) | |
436 | return -EINVAL; | |
0402788a JP |
437 | |
438 | mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); | |
439 | if (!mitem) | |
440 | return -ENOMEM; | |
441 | ||
3d249d4c JP |
442 | spin_lock(&mode_list_lock); |
443 | if (__find_mode(mode->kind)) { | |
444 | err = -EEXIST; | |
0402788a | 445 | kfree(mitem); |
3d249d4c JP |
446 | goto unlock; |
447 | } | |
0402788a JP |
448 | mitem->mode = mode; |
449 | list_add_tail(&mitem->list, &mode_list); | |
3d249d4c JP |
450 | unlock: |
451 | spin_unlock(&mode_list_lock); | |
452 | return err; | |
453 | } | |
454 | EXPORT_SYMBOL(team_mode_register); | |
455 | ||
0402788a | 456 | void team_mode_unregister(const struct team_mode *mode) |
3d249d4c | 457 | { |
0402788a JP |
458 | struct team_mode_item *mitem; |
459 | ||
3d249d4c | 460 | spin_lock(&mode_list_lock); |
0402788a JP |
461 | mitem = __find_mode(mode->kind); |
462 | if (mitem) { | |
463 | list_del_init(&mitem->list); | |
464 | kfree(mitem); | |
465 | } | |
3d249d4c | 466 | spin_unlock(&mode_list_lock); |
3d249d4c JP |
467 | } |
468 | EXPORT_SYMBOL(team_mode_unregister); | |
469 | ||
0402788a | 470 | static const struct team_mode *team_mode_get(const char *kind) |
3d249d4c | 471 | { |
0402788a JP |
472 | struct team_mode_item *mitem; |
473 | const struct team_mode *mode = NULL; | |
3d249d4c JP |
474 | |
475 | spin_lock(&mode_list_lock); | |
0402788a JP |
476 | mitem = __find_mode(kind); |
477 | if (!mitem) { | |
3d249d4c JP |
478 | spin_unlock(&mode_list_lock); |
479 | request_module("team-mode-%s", kind); | |
480 | spin_lock(&mode_list_lock); | |
0402788a | 481 | mitem = __find_mode(kind); |
3d249d4c | 482 | } |
0402788a JP |
483 | if (mitem) { |
484 | mode = mitem->mode; | |
3d249d4c JP |
485 | if (!try_module_get(mode->owner)) |
486 | mode = NULL; | |
0402788a | 487 | } |
3d249d4c JP |
488 | |
489 | spin_unlock(&mode_list_lock); | |
490 | return mode; | |
491 | } | |
492 | ||
493 | static void team_mode_put(const struct team_mode *mode) | |
494 | { | |
495 | module_put(mode->owner); | |
496 | } | |
497 | ||
498 | static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) | |
499 | { | |
500 | dev_kfree_skb_any(skb); | |
501 | return false; | |
502 | } | |
503 | ||
2ea46599 | 504 | static rx_handler_result_t team_dummy_receive(struct team *team, |
505 | struct team_port *port, | |
506 | struct sk_buff *skb) | |
3d249d4c JP |
507 | { |
508 | return RX_HANDLER_ANOTHER; | |
509 | } | |
510 | ||
d299cd51 JP |
511 | static const struct team_mode __team_no_mode = { |
512 | .kind = "*NOMODE*", | |
513 | }; | |
514 | ||
515 | static bool team_is_mode_set(struct team *team) | |
516 | { | |
517 | return team->mode != &__team_no_mode; | |
518 | } | |
519 | ||
520 | static void team_set_no_mode(struct team *team) | |
521 | { | |
e185483e | 522 | team->user_carrier_enabled = false; |
d299cd51 JP |
523 | team->mode = &__team_no_mode; |
524 | } | |
525 | ||
122bb046 | 526 | static void __team_adjust_ops(struct team *team, int en_port_count) |
3d249d4c JP |
527 | { |
528 | /* | |
529 | * To avoid checks in rx/tx skb paths, ensure here that non-null and | |
530 | * correct ops are always set. | |
531 | */ | |
532 | ||
122bb046 JP |
533 | if (!en_port_count || !team_is_mode_set(team) || |
534 | !team->mode->ops->transmit) | |
3d249d4c JP |
535 | team->ops.transmit = team_dummy_transmit; |
536 | else | |
537 | team->ops.transmit = team->mode->ops->transmit; | |
538 | ||
122bb046 JP |
539 | if (!en_port_count || !team_is_mode_set(team) || |
540 | !team->mode->ops->receive) | |
3d249d4c JP |
541 | team->ops.receive = team_dummy_receive; |
542 | else | |
543 | team->ops.receive = team->mode->ops->receive; | |
544 | } | |
545 | ||
122bb046 JP |
546 | static void team_adjust_ops(struct team *team) |
547 | { | |
548 | __team_adjust_ops(team, team->en_port_count); | |
549 | } | |
550 | ||
3d249d4c JP |
551 | /* |
552 | * We can benefit from the fact that it's ensured no port is present | |
553 | * at the time of mode change. Therefore no packets are in fly so there's no | |
554 | * need to set mode operations in any special way. | |
555 | */ | |
556 | static int __team_change_mode(struct team *team, | |
557 | const struct team_mode *new_mode) | |
558 | { | |
559 | /* Check if mode was previously set and do cleanup if so */ | |
d299cd51 | 560 | if (team_is_mode_set(team)) { |
3d249d4c JP |
561 | void (*exit_op)(struct team *team) = team->ops.exit; |
562 | ||
563 | /* Clear ops area so no callback is called any longer */ | |
564 | memset(&team->ops, 0, sizeof(struct team_mode_ops)); | |
565 | team_adjust_ops(team); | |
566 | ||
567 | if (exit_op) | |
568 | exit_op(team); | |
569 | team_mode_put(team->mode); | |
d299cd51 | 570 | team_set_no_mode(team); |
3d249d4c JP |
571 | /* zero private data area */ |
572 | memset(&team->mode_priv, 0, | |
573 | sizeof(struct team) - offsetof(struct team, mode_priv)); | |
574 | } | |
575 | ||
576 | if (!new_mode) | |
577 | return 0; | |
578 | ||
579 | if (new_mode->ops->init) { | |
580 | int err; | |
581 | ||
582 | err = new_mode->ops->init(team); | |
583 | if (err) | |
584 | return err; | |
585 | } | |
586 | ||
587 | team->mode = new_mode; | |
588 | memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); | |
589 | team_adjust_ops(team); | |
590 | ||
591 | return 0; | |
592 | } | |
593 | ||
594 | static int team_change_mode(struct team *team, const char *kind) | |
595 | { | |
0402788a | 596 | const struct team_mode *new_mode; |
3d249d4c JP |
597 | struct net_device *dev = team->dev; |
598 | int err; | |
599 | ||
600 | if (!list_empty(&team->port_list)) { | |
601 | netdev_err(dev, "No ports can be present during mode change\n"); | |
602 | return -EBUSY; | |
603 | } | |
604 | ||
d299cd51 | 605 | if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { |
3d249d4c JP |
606 | netdev_err(dev, "Unable to change to the same mode the team is in\n"); |
607 | return -EINVAL; | |
608 | } | |
609 | ||
610 | new_mode = team_mode_get(kind); | |
611 | if (!new_mode) { | |
612 | netdev_err(dev, "Mode \"%s\" not found\n", kind); | |
613 | return -EINVAL; | |
614 | } | |
615 | ||
616 | err = __team_change_mode(team, new_mode); | |
617 | if (err) { | |
618 | netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); | |
619 | team_mode_put(new_mode); | |
620 | return err; | |
621 | } | |
622 | ||
623 | netdev_info(dev, "Mode changed to \"%s\"\n", kind); | |
624 | return 0; | |
625 | } | |
626 | ||
627 | ||
628 | /************************ | |
629 | * Rx path frame handler | |
630 | ************************/ | |
631 | ||
632 | /* note: already called with rcu_read_lock */ | |
633 | static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) | |
634 | { | |
635 | struct sk_buff *skb = *pskb; | |
636 | struct team_port *port; | |
637 | struct team *team; | |
638 | rx_handler_result_t res; | |
639 | ||
640 | skb = skb_share_check(skb, GFP_ATOMIC); | |
641 | if (!skb) | |
642 | return RX_HANDLER_CONSUMED; | |
643 | ||
644 | *pskb = skb; | |
645 | ||
646 | port = team_port_get_rcu(skb->dev); | |
647 | team = port->team; | |
19a0b58e JP |
648 | if (!team_port_enabled(port)) { |
649 | /* allow exact match delivery for disabled ports */ | |
650 | res = RX_HANDLER_EXACT; | |
651 | } else { | |
652 | res = team->ops.receive(team, port, skb); | |
653 | } | |
3d249d4c JP |
654 | if (res == RX_HANDLER_ANOTHER) { |
655 | struct team_pcpu_stats *pcpu_stats; | |
656 | ||
657 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
658 | u64_stats_update_begin(&pcpu_stats->syncp); | |
659 | pcpu_stats->rx_packets++; | |
660 | pcpu_stats->rx_bytes += skb->len; | |
661 | if (skb->pkt_type == PACKET_MULTICAST) | |
662 | pcpu_stats->rx_multicast++; | |
663 | u64_stats_update_end(&pcpu_stats->syncp); | |
664 | ||
665 | skb->dev = team->dev; | |
666 | } else { | |
667 | this_cpu_inc(team->pcpu_stats->rx_dropped); | |
668 | } | |
669 | ||
670 | return res; | |
671 | } | |
672 | ||
673 | ||
8ff5105a JP |
674 | /************************************* |
675 | * Multiqueue Tx port select override | |
676 | *************************************/ | |
677 | ||
678 | static int team_queue_override_init(struct team *team) | |
679 | { | |
680 | struct list_head *listarr; | |
681 | unsigned int queue_cnt = team->dev->num_tx_queues - 1; | |
682 | unsigned int i; | |
683 | ||
684 | if (!queue_cnt) | |
685 | return 0; | |
686 | listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); | |
687 | if (!listarr) | |
688 | return -ENOMEM; | |
689 | team->qom_lists = listarr; | |
690 | for (i = 0; i < queue_cnt; i++) | |
691 | INIT_LIST_HEAD(listarr++); | |
692 | return 0; | |
693 | } | |
694 | ||
695 | static void team_queue_override_fini(struct team *team) | |
696 | { | |
697 | kfree(team->qom_lists); | |
698 | } | |
699 | ||
700 | static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) | |
701 | { | |
702 | return &team->qom_lists[queue_id - 1]; | |
703 | } | |
704 | ||
705 | /* | |
706 | * note: already called with rcu_read_lock | |
707 | */ | |
708 | static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) | |
709 | { | |
710 | struct list_head *qom_list; | |
711 | struct team_port *port; | |
712 | ||
713 | if (!team->queue_override_enabled || !skb->queue_mapping) | |
714 | return false; | |
715 | qom_list = __team_get_qom_list(team, skb->queue_mapping); | |
716 | list_for_each_entry_rcu(port, qom_list, qom_list) { | |
717 | if (!team_dev_queue_xmit(team, port, skb)) | |
718 | return true; | |
719 | } | |
720 | return false; | |
721 | } | |
722 | ||
723 | static void __team_queue_override_port_del(struct team *team, | |
724 | struct team_port *port) | |
725 | { | |
726 | list_del_rcu(&port->qom_list); | |
727 | synchronize_rcu(); | |
728 | INIT_LIST_HEAD(&port->qom_list); | |
729 | } | |
730 | ||
731 | static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, | |
732 | struct team_port *cur) | |
733 | { | |
734 | if (port->priority < cur->priority) | |
735 | return true; | |
736 | if (port->priority > cur->priority) | |
737 | return false; | |
738 | if (port->index < cur->index) | |
739 | return true; | |
740 | return false; | |
741 | } | |
742 | ||
743 | static void __team_queue_override_port_add(struct team *team, | |
744 | struct team_port *port) | |
745 | { | |
746 | struct team_port *cur; | |
747 | struct list_head *qom_list; | |
748 | struct list_head *node; | |
749 | ||
750 | if (!port->queue_id || !team_port_enabled(port)) | |
751 | return; | |
752 | ||
753 | qom_list = __team_get_qom_list(team, port->queue_id); | |
754 | node = qom_list; | |
755 | list_for_each_entry(cur, qom_list, qom_list) { | |
756 | if (team_queue_override_port_has_gt_prio_than(port, cur)) | |
757 | break; | |
758 | node = &cur->qom_list; | |
759 | } | |
760 | list_add_tail_rcu(&port->qom_list, node); | |
761 | } | |
762 | ||
763 | static void __team_queue_override_enabled_check(struct team *team) | |
764 | { | |
765 | struct team_port *port; | |
766 | bool enabled = false; | |
767 | ||
768 | list_for_each_entry(port, &team->port_list, list) { | |
769 | if (!list_empty(&port->qom_list)) { | |
770 | enabled = true; | |
771 | break; | |
772 | } | |
773 | } | |
774 | if (enabled == team->queue_override_enabled) | |
775 | return; | |
776 | netdev_dbg(team->dev, "%s queue override\n", | |
777 | enabled ? "Enabling" : "Disabling"); | |
778 | team->queue_override_enabled = enabled; | |
779 | } | |
780 | ||
781 | static void team_queue_override_port_refresh(struct team *team, | |
782 | struct team_port *port) | |
783 | { | |
784 | __team_queue_override_port_del(team, port); | |
785 | __team_queue_override_port_add(team, port); | |
786 | __team_queue_override_enabled_check(team); | |
787 | } | |
788 | ||
789 | ||
3d249d4c JP |
790 | /**************** |
791 | * Port handling | |
792 | ****************/ | |
793 | ||
794 | static bool team_port_find(const struct team *team, | |
795 | const struct team_port *port) | |
796 | { | |
797 | struct team_port *cur; | |
798 | ||
799 | list_for_each_entry(cur, &team->port_list, list) | |
800 | if (cur == port) | |
801 | return true; | |
802 | return false; | |
803 | } | |
804 | ||
805 | /* | |
19a0b58e JP |
806 | * Enable/disable port by adding to enabled port hashlist and setting |
807 | * port->index (Might be racy so reader could see incorrect ifindex when | |
808 | * processing a flying packet, but that is not a problem). Write guarded | |
809 | * by team->lock. | |
3d249d4c | 810 | */ |
19a0b58e JP |
811 | static void team_port_enable(struct team *team, |
812 | struct team_port *port) | |
3d249d4c | 813 | { |
19a0b58e JP |
814 | if (team_port_enabled(port)) |
815 | return; | |
816 | port->index = team->en_port_count++; | |
3d249d4c JP |
817 | hlist_add_head_rcu(&port->hlist, |
818 | team_port_index_hash(team, port->index)); | |
122bb046 | 819 | team_adjust_ops(team); |
8ff5105a | 820 | team_queue_override_port_refresh(team, port); |
4bccfd17 JP |
821 | if (team->ops.port_enabled) |
822 | team->ops.port_enabled(team, port); | |
3d249d4c JP |
823 | } |
824 | ||
825 | static void __reconstruct_port_hlist(struct team *team, int rm_index) | |
826 | { | |
827 | int i; | |
828 | struct team_port *port; | |
829 | ||
19a0b58e | 830 | for (i = rm_index + 1; i < team->en_port_count; i++) { |
3d249d4c JP |
831 | port = team_get_port_by_index(team, i); |
832 | hlist_del_rcu(&port->hlist); | |
833 | port->index--; | |
834 | hlist_add_head_rcu(&port->hlist, | |
835 | team_port_index_hash(team, port->index)); | |
836 | } | |
837 | } | |
838 | ||
19a0b58e JP |
839 | static void team_port_disable(struct team *team, |
840 | struct team_port *port) | |
3d249d4c | 841 | { |
19a0b58e JP |
842 | if (!team_port_enabled(port)) |
843 | return; | |
4bccfd17 JP |
844 | if (team->ops.port_disabled) |
845 | team->ops.port_disabled(team, port); | |
3d249d4c | 846 | hlist_del_rcu(&port->hlist); |
122bb046 | 847 | __reconstruct_port_hlist(team, port->index); |
19a0b58e | 848 | port->index = -1; |
8ff5105a | 849 | team_queue_override_port_refresh(team, port); |
122bb046 JP |
850 | __team_adjust_ops(team, team->en_port_count - 1); |
851 | /* | |
852 | * Wait until readers see adjusted ops. This ensures that | |
853 | * readers never see team->en_port_count == 0 | |
854 | */ | |
855 | synchronize_rcu(); | |
856 | team->en_port_count--; | |
3d249d4c JP |
857 | } |
858 | ||
859 | #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ | |
860 | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ | |
861 | NETIF_F_HIGHDMA | NETIF_F_LRO) | |
862 | ||
863 | static void __team_compute_features(struct team *team) | |
864 | { | |
865 | struct team_port *port; | |
866 | u32 vlan_features = TEAM_VLAN_FEATURES; | |
867 | unsigned short max_hard_header_len = ETH_HLEN; | |
dc905951 | 868 | unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; |
3d249d4c JP |
869 | |
870 | list_for_each_entry(port, &team->port_list, list) { | |
871 | vlan_features = netdev_increment_features(vlan_features, | |
872 | port->dev->vlan_features, | |
873 | TEAM_VLAN_FEATURES); | |
874 | ||
dc905951 | 875 | dst_release_flag &= port->dev->priv_flags; |
3d249d4c JP |
876 | if (port->dev->hard_header_len > max_hard_header_len) |
877 | max_hard_header_len = port->dev->hard_header_len; | |
878 | } | |
879 | ||
880 | team->dev->vlan_features = vlan_features; | |
881 | team->dev->hard_header_len = max_hard_header_len; | |
882 | ||
dc905951 JP |
883 | flags = team->dev->priv_flags & ~IFF_XMIT_DST_RELEASE; |
884 | team->dev->priv_flags = flags | dst_release_flag; | |
885 | ||
3d249d4c JP |
886 | netdev_change_features(team->dev); |
887 | } | |
888 | ||
889 | static void team_compute_features(struct team *team) | |
890 | { | |
61dc3461 | 891 | mutex_lock(&team->lock); |
3d249d4c | 892 | __team_compute_features(team); |
61dc3461 | 893 | mutex_unlock(&team->lock); |
3d249d4c JP |
894 | } |
895 | ||
896 | static int team_port_enter(struct team *team, struct team_port *port) | |
897 | { | |
898 | int err = 0; | |
899 | ||
900 | dev_hold(team->dev); | |
901 | port->dev->priv_flags |= IFF_TEAM_PORT; | |
902 | if (team->ops.port_enter) { | |
903 | err = team->ops.port_enter(team, port); | |
904 | if (err) { | |
905 | netdev_err(team->dev, "Device %s failed to enter team mode\n", | |
906 | port->dev->name); | |
907 | goto err_port_enter; | |
908 | } | |
909 | } | |
910 | ||
911 | return 0; | |
912 | ||
913 | err_port_enter: | |
914 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
915 | dev_put(team->dev); | |
916 | ||
917 | return err; | |
918 | } | |
919 | ||
920 | static void team_port_leave(struct team *team, struct team_port *port) | |
921 | { | |
922 | if (team->ops.port_leave) | |
923 | team->ops.port_leave(team, port); | |
924 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
925 | dev_put(team->dev); | |
926 | } | |
927 | ||
bd2d0837 | 928 | #ifdef CONFIG_NET_POLL_CONTROLLER |
47be03a2 AW |
929 | static int team_port_enable_netpoll(struct team *team, struct team_port *port, |
930 | gfp_t gfp) | |
bd2d0837 JP |
931 | { |
932 | struct netpoll *np; | |
933 | int err; | |
934 | ||
47be03a2 | 935 | np = kzalloc(sizeof(*np), gfp); |
bd2d0837 JP |
936 | if (!np) |
937 | return -ENOMEM; | |
938 | ||
47be03a2 | 939 | err = __netpoll_setup(np, port->dev, gfp); |
bd2d0837 JP |
940 | if (err) { |
941 | kfree(np); | |
942 | return err; | |
943 | } | |
944 | port->np = np; | |
945 | return err; | |
946 | } | |
947 | ||
948 | static void team_port_disable_netpoll(struct team_port *port) | |
949 | { | |
950 | struct netpoll *np = port->np; | |
951 | ||
952 | if (!np) | |
953 | return; | |
954 | port->np = NULL; | |
955 | ||
956 | /* Wait for transmitting packets to finish before freeing. */ | |
957 | synchronize_rcu_bh(); | |
958 | __netpoll_cleanup(np); | |
959 | kfree(np); | |
960 | } | |
961 | ||
962 | static struct netpoll_info *team_netpoll_info(struct team *team) | |
963 | { | |
964 | return team->dev->npinfo; | |
965 | } | |
966 | ||
967 | #else | |
47be03a2 AW |
968 | static int team_port_enable_netpoll(struct team *team, struct team_port *port, |
969 | gfp_t gfp) | |
bd2d0837 JP |
970 | { |
971 | return 0; | |
972 | } | |
973 | static void team_port_disable_netpoll(struct team_port *port) | |
974 | { | |
975 | } | |
976 | static struct netpoll_info *team_netpoll_info(struct team *team) | |
977 | { | |
978 | return NULL; | |
979 | } | |
980 | #endif | |
981 | ||
10f3f51d | 982 | static void __team_port_change_port_added(struct team_port *port, bool linkup); |
1d76efe1 JP |
983 | static int team_dev_type_check_change(struct net_device *dev, |
984 | struct net_device *port_dev); | |
3d249d4c JP |
985 | |
986 | static int team_port_add(struct team *team, struct net_device *port_dev) | |
987 | { | |
988 | struct net_device *dev = team->dev; | |
989 | struct team_port *port; | |
990 | char *portname = port_dev->name; | |
991 | int err; | |
992 | ||
1d76efe1 JP |
993 | if (port_dev->flags & IFF_LOOPBACK) { |
994 | netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", | |
3d249d4c JP |
995 | portname); |
996 | return -EINVAL; | |
997 | } | |
998 | ||
999 | if (team_port_exists(port_dev)) { | |
1000 | netdev_err(dev, "Device %s is already a port " | |
1001 | "of a team device\n", portname); | |
1002 | return -EBUSY; | |
1003 | } | |
1004 | ||
2c33bb37 JP |
1005 | if (port_dev->features & NETIF_F_VLAN_CHALLENGED && |
1006 | vlan_uses_dev(dev)) { | |
1007 | netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", | |
1008 | portname); | |
1009 | return -EPERM; | |
1010 | } | |
1011 | ||
1d76efe1 JP |
1012 | err = team_dev_type_check_change(dev, port_dev); |
1013 | if (err) | |
1014 | return err; | |
1015 | ||
3d249d4c JP |
1016 | if (port_dev->flags & IFF_UP) { |
1017 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", | |
1018 | portname); | |
1019 | return -EBUSY; | |
1020 | } | |
1021 | ||
5149ee58 JP |
1022 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
1023 | GFP_KERNEL); | |
3d249d4c JP |
1024 | if (!port) |
1025 | return -ENOMEM; | |
1026 | ||
1027 | port->dev = port_dev; | |
1028 | port->team = team; | |
8ff5105a | 1029 | INIT_LIST_HEAD(&port->qom_list); |
3d249d4c JP |
1030 | |
1031 | port->orig.mtu = port_dev->mtu; | |
1032 | err = dev_set_mtu(port_dev, dev->mtu); | |
1033 | if (err) { | |
1034 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); | |
1035 | goto err_set_mtu; | |
1036 | } | |
1037 | ||
1d76efe1 | 1038 | memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); |
3d249d4c JP |
1039 | |
1040 | err = team_port_enter(team, port); | |
1041 | if (err) { | |
1042 | netdev_err(dev, "Device %s failed to enter team mode\n", | |
1043 | portname); | |
1044 | goto err_port_enter; | |
1045 | } | |
1046 | ||
1047 | err = dev_open(port_dev); | |
1048 | if (err) { | |
1049 | netdev_dbg(dev, "Device %s opening failed\n", | |
1050 | portname); | |
1051 | goto err_dev_open; | |
1052 | } | |
1053 | ||
57459185 JP |
1054 | err = vlan_vids_add_by_dev(port_dev, dev); |
1055 | if (err) { | |
1056 | netdev_err(dev, "Failed to add vlan ids to device %s\n", | |
1057 | portname); | |
1058 | goto err_vids_add; | |
1059 | } | |
1060 | ||
bd2d0837 | 1061 | if (team_netpoll_info(team)) { |
47be03a2 | 1062 | err = team_port_enable_netpoll(team, port, GFP_KERNEL); |
bd2d0837 JP |
1063 | if (err) { |
1064 | netdev_err(dev, "Failed to enable netpoll on device %s\n", | |
1065 | portname); | |
1066 | goto err_enable_netpoll; | |
1067 | } | |
1068 | } | |
1069 | ||
b1cc9850 | 1070 | err = netdev_master_upper_dev_link(port_dev, dev); |
3d249d4c | 1071 | if (err) { |
b1cc9850 JP |
1072 | netdev_err(dev, "Device %s failed to set upper link\n", |
1073 | portname); | |
1074 | goto err_set_upper_link; | |
3d249d4c JP |
1075 | } |
1076 | ||
1077 | err = netdev_rx_handler_register(port_dev, team_handle_frame, | |
1078 | port); | |
1079 | if (err) { | |
1080 | netdev_err(dev, "Device %s failed to register rx_handler\n", | |
1081 | portname); | |
1082 | goto err_handler_register; | |
1083 | } | |
1084 | ||
35b384bd | 1085 | err = __team_option_inst_add_port(team, port); |
80f7c668 JP |
1086 | if (err) { |
1087 | netdev_err(dev, "Device %s failed to add per-port options\n", | |
1088 | portname); | |
1089 | goto err_option_port_add; | |
1090 | } | |
1091 | ||
19a0b58e | 1092 | port->index = -1; |
19a0b58e | 1093 | list_add_tail_rcu(&port->list, &team->port_list); |
72df935d | 1094 | team_port_enable(team, port); |
3d249d4c | 1095 | __team_compute_features(team); |
10f3f51d | 1096 | __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); |
35b384bd | 1097 | __team_options_change_check(team); |
3d249d4c JP |
1098 | |
1099 | netdev_info(dev, "Port device %s added\n", portname); | |
1100 | ||
1101 | return 0; | |
1102 | ||
80f7c668 JP |
1103 | err_option_port_add: |
1104 | netdev_rx_handler_unregister(port_dev); | |
1105 | ||
3d249d4c | 1106 | err_handler_register: |
b1cc9850 | 1107 | netdev_upper_dev_unlink(port_dev, dev); |
3d249d4c | 1108 | |
b1cc9850 | 1109 | err_set_upper_link: |
bd2d0837 JP |
1110 | team_port_disable_netpoll(port); |
1111 | ||
1112 | err_enable_netpoll: | |
57459185 JP |
1113 | vlan_vids_del_by_dev(port_dev, dev); |
1114 | ||
1115 | err_vids_add: | |
3d249d4c JP |
1116 | dev_close(port_dev); |
1117 | ||
1118 | err_dev_open: | |
1119 | team_port_leave(team, port); | |
1d76efe1 | 1120 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1121 | |
1122 | err_port_enter: | |
1123 | dev_set_mtu(port_dev, port->orig.mtu); | |
1124 | ||
1125 | err_set_mtu: | |
1126 | kfree(port); | |
1127 | ||
1128 | return err; | |
1129 | } | |
1130 | ||
10f3f51d JP |
1131 | static void __team_port_change_port_removed(struct team_port *port); |
1132 | ||
3d249d4c JP |
1133 | static int team_port_del(struct team *team, struct net_device *port_dev) |
1134 | { | |
1135 | struct net_device *dev = team->dev; | |
1136 | struct team_port *port; | |
1137 | char *portname = port_dev->name; | |
1138 | ||
1139 | port = team_port_get_rtnl(port_dev); | |
1140 | if (!port || !team_port_find(team, port)) { | |
1141 | netdev_err(dev, "Device %s does not act as a port of this team\n", | |
1142 | portname); | |
1143 | return -ENOENT; | |
1144 | } | |
1145 | ||
19a0b58e JP |
1146 | team_port_disable(team, port); |
1147 | list_del_rcu(&port->list); | |
3d249d4c | 1148 | netdev_rx_handler_unregister(port_dev); |
b1cc9850 | 1149 | netdev_upper_dev_unlink(port_dev, dev); |
bd2d0837 | 1150 | team_port_disable_netpoll(port); |
57459185 | 1151 | vlan_vids_del_by_dev(port_dev, dev); |
ba81276b VY |
1152 | dev_uc_unsync(port_dev, dev); |
1153 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1154 | dev_close(port_dev); |
1155 | team_port_leave(team, port); | |
c3969d80 JP |
1156 | |
1157 | __team_option_inst_mark_removed_port(team, port); | |
1158 | __team_options_change_check(team); | |
1159 | __team_option_inst_del_port(team, port); | |
1160 | __team_port_change_port_removed(port); | |
1161 | ||
1d76efe1 | 1162 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1163 | dev_set_mtu(port_dev, port->orig.mtu); |
1164 | synchronize_rcu(); | |
1165 | kfree(port); | |
1166 | netdev_info(dev, "Port device %s removed\n", portname); | |
1167 | __team_compute_features(team); | |
1168 | ||
1169 | return 0; | |
1170 | } | |
1171 | ||
1172 | ||
1173 | /***************** | |
1174 | * Net device ops | |
1175 | *****************/ | |
1176 | ||
80f7c668 | 1177 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1178 | { |
d299cd51 | 1179 | ctx->data.str_val = team->mode->kind; |
3d249d4c JP |
1180 | return 0; |
1181 | } | |
1182 | ||
80f7c668 | 1183 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1184 | { |
80f7c668 | 1185 | return team_change_mode(team, ctx->data.str_val); |
3d249d4c JP |
1186 | } |
1187 | ||
acd69962 JP |
1188 | static int team_port_en_option_get(struct team *team, |
1189 | struct team_gsetter_ctx *ctx) | |
1190 | { | |
85d59a87 JP |
1191 | struct team_port *port = ctx->info->port; |
1192 | ||
1193 | ctx->data.bool_val = team_port_enabled(port); | |
acd69962 JP |
1194 | return 0; |
1195 | } | |
1196 | ||
1197 | static int team_port_en_option_set(struct team *team, | |
1198 | struct team_gsetter_ctx *ctx) | |
1199 | { | |
85d59a87 JP |
1200 | struct team_port *port = ctx->info->port; |
1201 | ||
acd69962 | 1202 | if (ctx->data.bool_val) |
85d59a87 | 1203 | team_port_enable(team, port); |
acd69962 | 1204 | else |
85d59a87 | 1205 | team_port_disable(team, port); |
acd69962 JP |
1206 | return 0; |
1207 | } | |
1208 | ||
71472ec1 JP |
1209 | static int team_user_linkup_option_get(struct team *team, |
1210 | struct team_gsetter_ctx *ctx) | |
1211 | { | |
85d59a87 JP |
1212 | struct team_port *port = ctx->info->port; |
1213 | ||
1214 | ctx->data.bool_val = port->user.linkup; | |
71472ec1 JP |
1215 | return 0; |
1216 | } | |
1217 | ||
a52a9149 JP |
1218 | static void __team_carrier_check(struct team *team); |
1219 | ||
71472ec1 JP |
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); | |
a52a9149 | 1227 | __team_carrier_check(port->team); |
71472ec1 JP |
1228 | return 0; |
1229 | } | |
1230 | ||
1231 | static int team_user_linkup_en_option_get(struct team *team, | |
1232 | struct team_gsetter_ctx *ctx) | |
1233 | { | |
85d59a87 | 1234 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1235 | |
1236 | ctx->data.bool_val = port->user.linkup_enabled; | |
1237 | return 0; | |
1238 | } | |
1239 | ||
1240 | static int team_user_linkup_en_option_set(struct team *team, | |
1241 | struct team_gsetter_ctx *ctx) | |
1242 | { | |
85d59a87 | 1243 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1244 | |
1245 | port->user.linkup_enabled = ctx->data.bool_val; | |
85d59a87 | 1246 | team_refresh_port_linkup(port); |
a52a9149 | 1247 | __team_carrier_check(port->team); |
71472ec1 JP |
1248 | return 0; |
1249 | } | |
1250 | ||
a86fc6b7 JP |
1251 | static int team_priority_option_get(struct team *team, |
1252 | struct team_gsetter_ctx *ctx) | |
1253 | { | |
1254 | struct team_port *port = ctx->info->port; | |
1255 | ||
1256 | ctx->data.s32_val = port->priority; | |
1257 | return 0; | |
1258 | } | |
1259 | ||
1260 | static int team_priority_option_set(struct team *team, | |
1261 | struct team_gsetter_ctx *ctx) | |
1262 | { | |
1263 | struct team_port *port = ctx->info->port; | |
1264 | ||
1265 | port->priority = ctx->data.s32_val; | |
8ff5105a JP |
1266 | team_queue_override_port_refresh(team, port); |
1267 | return 0; | |
1268 | } | |
1269 | ||
1270 | static int team_queue_id_option_get(struct team *team, | |
1271 | struct team_gsetter_ctx *ctx) | |
1272 | { | |
1273 | struct team_port *port = ctx->info->port; | |
1274 | ||
1275 | ctx->data.u32_val = port->queue_id; | |
a86fc6b7 JP |
1276 | return 0; |
1277 | } | |
1278 | ||
8ff5105a JP |
1279 | static int team_queue_id_option_set(struct team *team, |
1280 | struct team_gsetter_ctx *ctx) | |
1281 | { | |
1282 | struct team_port *port = ctx->info->port; | |
1283 | ||
1284 | if (port->queue_id == ctx->data.u32_val) | |
1285 | return 0; | |
1286 | if (ctx->data.u32_val >= team->dev->real_num_tx_queues) | |
1287 | return -EINVAL; | |
1288 | port->queue_id = ctx->data.u32_val; | |
1289 | team_queue_override_port_refresh(team, port); | |
1290 | return 0; | |
1291 | } | |
1292 | ||
1293 | ||
358b8382 | 1294 | static const struct team_option team_options[] = { |
3d249d4c JP |
1295 | { |
1296 | .name = "mode", | |
1297 | .type = TEAM_OPTION_TYPE_STRING, | |
1298 | .getter = team_mode_option_get, | |
1299 | .setter = team_mode_option_set, | |
1300 | }, | |
acd69962 JP |
1301 | { |
1302 | .name = "enabled", | |
1303 | .type = TEAM_OPTION_TYPE_BOOL, | |
1304 | .per_port = true, | |
1305 | .getter = team_port_en_option_get, | |
1306 | .setter = team_port_en_option_set, | |
1307 | }, | |
71472ec1 JP |
1308 | { |
1309 | .name = "user_linkup", | |
1310 | .type = TEAM_OPTION_TYPE_BOOL, | |
1311 | .per_port = true, | |
1312 | .getter = team_user_linkup_option_get, | |
1313 | .setter = team_user_linkup_option_set, | |
1314 | }, | |
1315 | { | |
1316 | .name = "user_linkup_enabled", | |
1317 | .type = TEAM_OPTION_TYPE_BOOL, | |
1318 | .per_port = true, | |
1319 | .getter = team_user_linkup_en_option_get, | |
1320 | .setter = team_user_linkup_en_option_set, | |
1321 | }, | |
a86fc6b7 JP |
1322 | { |
1323 | .name = "priority", | |
1324 | .type = TEAM_OPTION_TYPE_S32, | |
1325 | .per_port = true, | |
1326 | .getter = team_priority_option_get, | |
1327 | .setter = team_priority_option_set, | |
1328 | }, | |
8ff5105a JP |
1329 | { |
1330 | .name = "queue_id", | |
1331 | .type = TEAM_OPTION_TYPE_U32, | |
1332 | .per_port = true, | |
1333 | .getter = team_queue_id_option_get, | |
1334 | .setter = team_queue_id_option_set, | |
1335 | }, | |
3d249d4c JP |
1336 | }; |
1337 | ||
6c85f2bd JP |
1338 | static struct lock_class_key team_netdev_xmit_lock_key; |
1339 | static struct lock_class_key team_netdev_addr_lock_key; | |
b3c581d5 | 1340 | static struct lock_class_key team_tx_busylock_key; |
6c85f2bd JP |
1341 | |
1342 | static void team_set_lockdep_class_one(struct net_device *dev, | |
1343 | struct netdev_queue *txq, | |
1344 | void *unused) | |
1345 | { | |
1346 | lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); | |
1347 | } | |
1348 | ||
1349 | static void team_set_lockdep_class(struct net_device *dev) | |
1350 | { | |
1351 | lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); | |
1352 | netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); | |
b3c581d5 | 1353 | dev->qdisc_tx_busylock = &team_tx_busylock_key; |
6c85f2bd JP |
1354 | } |
1355 | ||
3d249d4c JP |
1356 | static int team_init(struct net_device *dev) |
1357 | { | |
1358 | struct team *team = netdev_priv(dev); | |
1359 | int i; | |
358b8382 | 1360 | int err; |
3d249d4c JP |
1361 | |
1362 | team->dev = dev; | |
61dc3461 | 1363 | mutex_init(&team->lock); |
d299cd51 | 1364 | team_set_no_mode(team); |
3d249d4c JP |
1365 | |
1366 | team->pcpu_stats = alloc_percpu(struct team_pcpu_stats); | |
1367 | if (!team->pcpu_stats) | |
1368 | return -ENOMEM; | |
1369 | ||
1370 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) | |
19a0b58e | 1371 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
3d249d4c | 1372 | INIT_LIST_HEAD(&team->port_list); |
8ff5105a JP |
1373 | err = team_queue_override_init(team); |
1374 | if (err) | |
1375 | goto err_team_queue_override_init; | |
3d249d4c JP |
1376 | |
1377 | team_adjust_ops(team); | |
1378 | ||
1379 | INIT_LIST_HEAD(&team->option_list); | |
80f7c668 | 1380 | INIT_LIST_HEAD(&team->option_inst_list); |
358b8382 JP |
1381 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
1382 | if (err) | |
1383 | goto err_options_register; | |
3d249d4c JP |
1384 | netif_carrier_off(dev); |
1385 | ||
6c85f2bd JP |
1386 | team_set_lockdep_class(dev); |
1387 | ||
3d249d4c | 1388 | return 0; |
358b8382 JP |
1389 | |
1390 | err_options_register: | |
8ff5105a JP |
1391 | team_queue_override_fini(team); |
1392 | err_team_queue_override_init: | |
358b8382 JP |
1393 | free_percpu(team->pcpu_stats); |
1394 | ||
1395 | return err; | |
3d249d4c JP |
1396 | } |
1397 | ||
1398 | static void team_uninit(struct net_device *dev) | |
1399 | { | |
1400 | struct team *team = netdev_priv(dev); | |
1401 | struct team_port *port; | |
1402 | struct team_port *tmp; | |
1403 | ||
61dc3461 | 1404 | mutex_lock(&team->lock); |
3d249d4c JP |
1405 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
1406 | team_port_del(team, port->dev); | |
1407 | ||
1408 | __team_change_mode(team, NULL); /* cleanup */ | |
1409 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); | |
8ff5105a | 1410 | team_queue_override_fini(team); |
61dc3461 | 1411 | mutex_unlock(&team->lock); |
3d249d4c JP |
1412 | } |
1413 | ||
1414 | static void team_destructor(struct net_device *dev) | |
1415 | { | |
1416 | struct team *team = netdev_priv(dev); | |
1417 | ||
1418 | free_percpu(team->pcpu_stats); | |
1419 | free_netdev(dev); | |
1420 | } | |
1421 | ||
1422 | static int team_open(struct net_device *dev) | |
1423 | { | |
3d249d4c JP |
1424 | return 0; |
1425 | } | |
1426 | ||
1427 | static int team_close(struct net_device *dev) | |
1428 | { | |
3d249d4c JP |
1429 | return 0; |
1430 | } | |
1431 | ||
1432 | /* | |
1433 | * note: already called with rcu_read_lock | |
1434 | */ | |
1435 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) | |
1436 | { | |
1437 | struct team *team = netdev_priv(dev); | |
8ff5105a | 1438 | bool tx_success; |
3d249d4c JP |
1439 | unsigned int len = skb->len; |
1440 | ||
8ff5105a JP |
1441 | tx_success = team_queue_override_transmit(team, skb); |
1442 | if (!tx_success) | |
1443 | tx_success = team->ops.transmit(team, skb); | |
3d249d4c JP |
1444 | if (tx_success) { |
1445 | struct team_pcpu_stats *pcpu_stats; | |
1446 | ||
1447 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
1448 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1449 | pcpu_stats->tx_packets++; | |
1450 | pcpu_stats->tx_bytes += len; | |
1451 | u64_stats_update_end(&pcpu_stats->syncp); | |
1452 | } else { | |
1453 | this_cpu_inc(team->pcpu_stats->tx_dropped); | |
1454 | } | |
1455 | ||
1456 | return NETDEV_TX_OK; | |
1457 | } | |
1458 | ||
6c85f2bd JP |
1459 | static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb) |
1460 | { | |
1461 | /* | |
1462 | * This helper function exists to help dev_pick_tx get the correct | |
1463 | * destination queue. Using a helper function skips a call to | |
1464 | * skb_tx_hash and will put the skbs in the queue we expect on their | |
1465 | * way down to the team driver. | |
1466 | */ | |
1467 | u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; | |
1468 | ||
1469 | /* | |
1470 | * Save the original txq to restore before passing to the driver | |
1471 | */ | |
1472 | qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; | |
1473 | ||
1474 | if (unlikely(txq >= dev->real_num_tx_queues)) { | |
1475 | do { | |
1476 | txq -= dev->real_num_tx_queues; | |
1477 | } while (txq >= dev->real_num_tx_queues); | |
1478 | } | |
1479 | return txq; | |
1480 | } | |
1481 | ||
3d249d4c JP |
1482 | static void team_change_rx_flags(struct net_device *dev, int change) |
1483 | { | |
1484 | struct team *team = netdev_priv(dev); | |
1485 | struct team_port *port; | |
1486 | int inc; | |
1487 | ||
1488 | rcu_read_lock(); | |
1489 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1490 | if (change & IFF_PROMISC) { | |
1491 | inc = dev->flags & IFF_PROMISC ? 1 : -1; | |
1492 | dev_set_promiscuity(port->dev, inc); | |
1493 | } | |
1494 | if (change & IFF_ALLMULTI) { | |
1495 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; | |
1496 | dev_set_allmulti(port->dev, inc); | |
1497 | } | |
1498 | } | |
1499 | rcu_read_unlock(); | |
1500 | } | |
1501 | ||
1502 | static void team_set_rx_mode(struct net_device *dev) | |
1503 | { | |
1504 | struct team *team = netdev_priv(dev); | |
1505 | struct team_port *port; | |
1506 | ||
1507 | rcu_read_lock(); | |
1508 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
72b27032 VY |
1509 | dev_uc_sync_multiple(port->dev, dev); |
1510 | dev_mc_sync_multiple(port->dev, dev); | |
3d249d4c JP |
1511 | } |
1512 | rcu_read_unlock(); | |
1513 | } | |
1514 | ||
1515 | static int team_set_mac_address(struct net_device *dev, void *p) | |
1516 | { | |
1d76efe1 | 1517 | struct sockaddr *addr = p; |
3d249d4c JP |
1518 | struct team *team = netdev_priv(dev); |
1519 | struct team_port *port; | |
3d249d4c | 1520 | |
1d76efe1 JP |
1521 | if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) |
1522 | return -EADDRNOTAVAIL; | |
1523 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
fc46dcb4 JP |
1524 | mutex_lock(&team->lock); |
1525 | list_for_each_entry(port, &team->port_list, list) | |
1d76efe1 JP |
1526 | if (team->ops.port_change_dev_addr) |
1527 | team->ops.port_change_dev_addr(team, port); | |
fc46dcb4 | 1528 | mutex_unlock(&team->lock); |
3d249d4c JP |
1529 | return 0; |
1530 | } | |
1531 | ||
1532 | static int team_change_mtu(struct net_device *dev, int new_mtu) | |
1533 | { | |
1534 | struct team *team = netdev_priv(dev); | |
1535 | struct team_port *port; | |
1536 | int err; | |
1537 | ||
1538 | /* | |
1539 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1540 | * to traverse list in reverse under rcu_read_lock | |
1541 | */ | |
61dc3461 | 1542 | mutex_lock(&team->lock); |
35f85245 | 1543 | team->port_mtu_change_allowed = true; |
3d249d4c JP |
1544 | list_for_each_entry(port, &team->port_list, list) { |
1545 | err = dev_set_mtu(port->dev, new_mtu); | |
1546 | if (err) { | |
1547 | netdev_err(dev, "Device %s failed to change mtu", | |
1548 | port->dev->name); | |
1549 | goto unwind; | |
1550 | } | |
1551 | } | |
35f85245 | 1552 | team->port_mtu_change_allowed = false; |
61dc3461 | 1553 | mutex_unlock(&team->lock); |
3d249d4c JP |
1554 | |
1555 | dev->mtu = new_mtu; | |
1556 | ||
1557 | return 0; | |
1558 | ||
1559 | unwind: | |
1560 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1561 | dev_set_mtu(port->dev, dev->mtu); | |
35f85245 | 1562 | team->port_mtu_change_allowed = false; |
61dc3461 | 1563 | mutex_unlock(&team->lock); |
3d249d4c JP |
1564 | |
1565 | return err; | |
1566 | } | |
1567 | ||
1568 | static struct rtnl_link_stats64 * | |
1569 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
1570 | { | |
1571 | struct team *team = netdev_priv(dev); | |
1572 | struct team_pcpu_stats *p; | |
1573 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; | |
1574 | u32 rx_dropped = 0, tx_dropped = 0; | |
1575 | unsigned int start; | |
1576 | int i; | |
1577 | ||
1578 | for_each_possible_cpu(i) { | |
1579 | p = per_cpu_ptr(team->pcpu_stats, i); | |
1580 | do { | |
1581 | start = u64_stats_fetch_begin_bh(&p->syncp); | |
1582 | rx_packets = p->rx_packets; | |
1583 | rx_bytes = p->rx_bytes; | |
1584 | rx_multicast = p->rx_multicast; | |
1585 | tx_packets = p->tx_packets; | |
1586 | tx_bytes = p->tx_bytes; | |
1587 | } while (u64_stats_fetch_retry_bh(&p->syncp, start)); | |
1588 | ||
1589 | stats->rx_packets += rx_packets; | |
1590 | stats->rx_bytes += rx_bytes; | |
1591 | stats->multicast += rx_multicast; | |
1592 | stats->tx_packets += tx_packets; | |
1593 | stats->tx_bytes += tx_bytes; | |
1594 | /* | |
1595 | * rx_dropped & tx_dropped are u32, updated | |
1596 | * without syncp protection. | |
1597 | */ | |
1598 | rx_dropped += p->rx_dropped; | |
1599 | tx_dropped += p->tx_dropped; | |
1600 | } | |
1601 | stats->rx_dropped = rx_dropped; | |
1602 | stats->tx_dropped = tx_dropped; | |
1603 | return stats; | |
1604 | } | |
1605 | ||
80d5c368 | 1606 | static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1607 | { |
1608 | struct team *team = netdev_priv(dev); | |
1609 | struct team_port *port; | |
87002b03 | 1610 | int err; |
3d249d4c | 1611 | |
87002b03 JP |
1612 | /* |
1613 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1614 | * to traverse list in reverse under rcu_read_lock | |
1615 | */ | |
1616 | mutex_lock(&team->lock); | |
1617 | list_for_each_entry(port, &team->port_list, list) { | |
80d5c368 | 1618 | err = vlan_vid_add(port->dev, proto, vid); |
87002b03 JP |
1619 | if (err) |
1620 | goto unwind; | |
3d249d4c | 1621 | } |
87002b03 | 1622 | mutex_unlock(&team->lock); |
8e586137 JP |
1623 | |
1624 | return 0; | |
87002b03 JP |
1625 | |
1626 | unwind: | |
1627 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
80d5c368 | 1628 | vlan_vid_del(port->dev, proto, vid); |
87002b03 JP |
1629 | mutex_unlock(&team->lock); |
1630 | ||
1631 | return err; | |
3d249d4c JP |
1632 | } |
1633 | ||
80d5c368 | 1634 | static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1635 | { |
1636 | struct team *team = netdev_priv(dev); | |
1637 | struct team_port *port; | |
1638 | ||
c496409d IS |
1639 | mutex_lock(&team->lock); |
1640 | list_for_each_entry(port, &team->port_list, list) | |
80d5c368 | 1641 | vlan_vid_del(port->dev, proto, vid); |
c496409d | 1642 | mutex_unlock(&team->lock); |
8e586137 JP |
1643 | |
1644 | return 0; | |
3d249d4c JP |
1645 | } |
1646 | ||
bd2d0837 JP |
1647 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1648 | static void team_poll_controller(struct net_device *dev) | |
1649 | { | |
1650 | } | |
1651 | ||
1652 | static void __team_netpoll_cleanup(struct team *team) | |
1653 | { | |
1654 | struct team_port *port; | |
1655 | ||
1656 | list_for_each_entry(port, &team->port_list, list) | |
1657 | team_port_disable_netpoll(port); | |
1658 | } | |
1659 | ||
1660 | static void team_netpoll_cleanup(struct net_device *dev) | |
1661 | { | |
1662 | struct team *team = netdev_priv(dev); | |
1663 | ||
1664 | mutex_lock(&team->lock); | |
1665 | __team_netpoll_cleanup(team); | |
1666 | mutex_unlock(&team->lock); | |
1667 | } | |
1668 | ||
1669 | static int team_netpoll_setup(struct net_device *dev, | |
47be03a2 | 1670 | struct netpoll_info *npifo, gfp_t gfp) |
bd2d0837 JP |
1671 | { |
1672 | struct team *team = netdev_priv(dev); | |
1673 | struct team_port *port; | |
3324d024 | 1674 | int err = 0; |
bd2d0837 JP |
1675 | |
1676 | mutex_lock(&team->lock); | |
1677 | list_for_each_entry(port, &team->port_list, list) { | |
47be03a2 | 1678 | err = team_port_enable_netpoll(team, port, gfp); |
bd2d0837 JP |
1679 | if (err) { |
1680 | __team_netpoll_cleanup(team); | |
1681 | break; | |
1682 | } | |
1683 | } | |
1684 | mutex_unlock(&team->lock); | |
1685 | return err; | |
1686 | } | |
1687 | #endif | |
1688 | ||
3d249d4c JP |
1689 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev) |
1690 | { | |
1691 | struct team *team = netdev_priv(dev); | |
1692 | int err; | |
1693 | ||
61dc3461 | 1694 | mutex_lock(&team->lock); |
3d249d4c | 1695 | err = team_port_add(team, port_dev); |
61dc3461 | 1696 | mutex_unlock(&team->lock); |
3d249d4c JP |
1697 | return err; |
1698 | } | |
1699 | ||
1700 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) | |
1701 | { | |
1702 | struct team *team = netdev_priv(dev); | |
1703 | int err; | |
1704 | ||
61dc3461 | 1705 | mutex_lock(&team->lock); |
3d249d4c | 1706 | err = team_port_del(team, port_dev); |
61dc3461 | 1707 | mutex_unlock(&team->lock); |
3d249d4c JP |
1708 | return err; |
1709 | } | |
1710 | ||
234a8fd4 JP |
1711 | static netdev_features_t team_fix_features(struct net_device *dev, |
1712 | netdev_features_t features) | |
1713 | { | |
1714 | struct team_port *port; | |
1715 | struct team *team = netdev_priv(dev); | |
1716 | netdev_features_t mask; | |
1717 | ||
1718 | mask = features; | |
1719 | features &= ~NETIF_F_ONE_FOR_ALL; | |
1720 | features |= NETIF_F_ALL_FOR_ALL; | |
1721 | ||
1722 | rcu_read_lock(); | |
1723 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1724 | features = netdev_increment_features(features, | |
1725 | port->dev->features, | |
1726 | mask); | |
1727 | } | |
1728 | rcu_read_unlock(); | |
1729 | return features; | |
1730 | } | |
1731 | ||
4cafe373 FL |
1732 | static int team_change_carrier(struct net_device *dev, bool new_carrier) |
1733 | { | |
e185483e FL |
1734 | struct team *team = netdev_priv(dev); |
1735 | ||
1736 | team->user_carrier_enabled = true; | |
1737 | ||
4cafe373 FL |
1738 | if (new_carrier) |
1739 | netif_carrier_on(dev); | |
1740 | else | |
1741 | netif_carrier_off(dev); | |
1742 | return 0; | |
1743 | } | |
1744 | ||
3d249d4c JP |
1745 | static const struct net_device_ops team_netdev_ops = { |
1746 | .ndo_init = team_init, | |
1747 | .ndo_uninit = team_uninit, | |
1748 | .ndo_open = team_open, | |
1749 | .ndo_stop = team_close, | |
1750 | .ndo_start_xmit = team_xmit, | |
6c85f2bd | 1751 | .ndo_select_queue = team_select_queue, |
3d249d4c JP |
1752 | .ndo_change_rx_flags = team_change_rx_flags, |
1753 | .ndo_set_rx_mode = team_set_rx_mode, | |
1754 | .ndo_set_mac_address = team_set_mac_address, | |
1755 | .ndo_change_mtu = team_change_mtu, | |
1756 | .ndo_get_stats64 = team_get_stats64, | |
1757 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, | |
1758 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, | |
bd2d0837 JP |
1759 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1760 | .ndo_poll_controller = team_poll_controller, | |
1761 | .ndo_netpoll_setup = team_netpoll_setup, | |
1762 | .ndo_netpoll_cleanup = team_netpoll_cleanup, | |
1763 | #endif | |
3d249d4c JP |
1764 | .ndo_add_slave = team_add_slave, |
1765 | .ndo_del_slave = team_del_slave, | |
234a8fd4 | 1766 | .ndo_fix_features = team_fix_features, |
4cafe373 | 1767 | .ndo_change_carrier = team_change_carrier, |
3d249d4c JP |
1768 | }; |
1769 | ||
7f51c587 FL |
1770 | /*********************** |
1771 | * ethtool interface | |
1772 | ***********************/ | |
1773 | ||
1774 | static void team_ethtool_get_drvinfo(struct net_device *dev, | |
1775 | struct ethtool_drvinfo *drvinfo) | |
1776 | { | |
3066af58 FL |
1777 | strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
1778 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
7f51c587 FL |
1779 | } |
1780 | ||
1781 | static const struct ethtool_ops team_ethtool_ops = { | |
1782 | .get_drvinfo = team_ethtool_get_drvinfo, | |
1783 | .get_link = ethtool_op_get_link, | |
1784 | }; | |
3d249d4c JP |
1785 | |
1786 | /*********************** | |
1787 | * rt netlink interface | |
1788 | ***********************/ | |
1789 | ||
1d76efe1 JP |
1790 | static void team_setup_by_port(struct net_device *dev, |
1791 | struct net_device *port_dev) | |
1792 | { | |
1793 | dev->header_ops = port_dev->header_ops; | |
1794 | dev->type = port_dev->type; | |
1795 | dev->hard_header_len = port_dev->hard_header_len; | |
1796 | dev->addr_len = port_dev->addr_len; | |
1797 | dev->mtu = port_dev->mtu; | |
1798 | memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); | |
1799 | memcpy(dev->dev_addr, port_dev->dev_addr, port_dev->addr_len); | |
1d76efe1 JP |
1800 | } |
1801 | ||
1802 | static int team_dev_type_check_change(struct net_device *dev, | |
1803 | struct net_device *port_dev) | |
1804 | { | |
1805 | struct team *team = netdev_priv(dev); | |
1806 | char *portname = port_dev->name; | |
1807 | int err; | |
1808 | ||
1809 | if (dev->type == port_dev->type) | |
1810 | return 0; | |
1811 | if (!list_empty(&team->port_list)) { | |
1812 | netdev_err(dev, "Device %s is of different type\n", portname); | |
1813 | return -EBUSY; | |
1814 | } | |
1815 | err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); | |
1816 | err = notifier_to_errno(err); | |
1817 | if (err) { | |
1818 | netdev_err(dev, "Refused to change device type\n"); | |
1819 | return err; | |
1820 | } | |
1821 | dev_uc_flush(dev); | |
1822 | dev_mc_flush(dev); | |
1823 | team_setup_by_port(dev, port_dev); | |
1824 | call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); | |
1825 | return 0; | |
1826 | } | |
1827 | ||
3d249d4c JP |
1828 | static void team_setup(struct net_device *dev) |
1829 | { | |
1830 | ether_setup(dev); | |
1831 | ||
1832 | dev->netdev_ops = &team_netdev_ops; | |
7f51c587 | 1833 | dev->ethtool_ops = &team_ethtool_ops; |
3d249d4c JP |
1834 | dev->destructor = team_destructor; |
1835 | dev->tx_queue_len = 0; | |
1836 | dev->flags |= IFF_MULTICAST; | |
1837 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); | |
1838 | ||
1839 | /* | |
1840 | * Indicate we support unicast address filtering. That way core won't | |
1841 | * bring us to promisc mode in case a unicast addr is added. | |
1842 | * Let this up to underlay drivers. | |
1843 | */ | |
5a1d1c8c | 1844 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
3d249d4c JP |
1845 | |
1846 | dev->features |= NETIF_F_LLTX; | |
1847 | dev->features |= NETIF_F_GRO; | |
3ed71471 | 1848 | dev->hw_features = TEAM_VLAN_FEATURES | |
f646968f PM |
1849 | NETIF_F_HW_VLAN_CTAG_TX | |
1850 | NETIF_F_HW_VLAN_CTAG_RX | | |
1851 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
3d249d4c | 1852 | |
3ed71471 | 1853 | dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM); |
3d249d4c JP |
1854 | dev->features |= dev->hw_features; |
1855 | } | |
1856 | ||
1857 | static int team_newlink(struct net *src_net, struct net_device *dev, | |
1858 | struct nlattr *tb[], struct nlattr *data[]) | |
1859 | { | |
1860 | int err; | |
1861 | ||
1862 | if (tb[IFLA_ADDRESS] == NULL) | |
7ce5d222 | 1863 | eth_hw_addr_random(dev); |
3d249d4c JP |
1864 | |
1865 | err = register_netdevice(dev); | |
1866 | if (err) | |
1867 | return err; | |
1868 | ||
1869 | return 0; | |
1870 | } | |
1871 | ||
1872 | static int team_validate(struct nlattr *tb[], struct nlattr *data[]) | |
1873 | { | |
1874 | if (tb[IFLA_ADDRESS]) { | |
1875 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
1876 | return -EINVAL; | |
1877 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
1878 | return -EADDRNOTAVAIL; | |
1879 | } | |
1880 | return 0; | |
1881 | } | |
1882 | ||
6c85f2bd JP |
1883 | static unsigned int team_get_num_tx_queues(void) |
1884 | { | |
1885 | return TEAM_DEFAULT_NUM_TX_QUEUES; | |
1886 | } | |
1887 | ||
1888 | static unsigned int team_get_num_rx_queues(void) | |
1889 | { | |
1890 | return TEAM_DEFAULT_NUM_RX_QUEUES; | |
1891 | } | |
1892 | ||
3d249d4c | 1893 | static struct rtnl_link_ops team_link_ops __read_mostly = { |
6c85f2bd JP |
1894 | .kind = DRV_NAME, |
1895 | .priv_size = sizeof(struct team), | |
1896 | .setup = team_setup, | |
1897 | .newlink = team_newlink, | |
1898 | .validate = team_validate, | |
1899 | .get_num_tx_queues = team_get_num_tx_queues, | |
1900 | .get_num_rx_queues = team_get_num_rx_queues, | |
3d249d4c JP |
1901 | }; |
1902 | ||
1903 | ||
1904 | /*********************************** | |
1905 | * Generic netlink custom interface | |
1906 | ***********************************/ | |
1907 | ||
1908 | static struct genl_family team_nl_family = { | |
1909 | .id = GENL_ID_GENERATE, | |
1910 | .name = TEAM_GENL_NAME, | |
1911 | .version = TEAM_GENL_VERSION, | |
1912 | .maxattr = TEAM_ATTR_MAX, | |
1913 | .netnsok = true, | |
1914 | }; | |
1915 | ||
1916 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { | |
1917 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, | |
1918 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, | |
1919 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, | |
1920 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, | |
1921 | }; | |
1922 | ||
1923 | static const struct nla_policy | |
1924 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { | |
1925 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, | |
1926 | [TEAM_ATTR_OPTION_NAME] = { | |
1927 | .type = NLA_STRING, | |
1928 | .len = TEAM_STRING_MAX_LEN, | |
1929 | }, | |
1930 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, | |
1931 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, | |
2615598f | 1932 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
3d249d4c JP |
1933 | }; |
1934 | ||
1935 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) | |
1936 | { | |
1937 | struct sk_buff *msg; | |
1938 | void *hdr; | |
1939 | int err; | |
1940 | ||
58050fce | 1941 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
1942 | if (!msg) |
1943 | return -ENOMEM; | |
1944 | ||
15e47304 | 1945 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, |
3d249d4c | 1946 | &team_nl_family, 0, TEAM_CMD_NOOP); |
a326e6dd WY |
1947 | if (!hdr) { |
1948 | err = -EMSGSIZE; | |
3d249d4c JP |
1949 | goto err_msg_put; |
1950 | } | |
1951 | ||
1952 | genlmsg_end(msg, hdr); | |
1953 | ||
15e47304 | 1954 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); |
3d249d4c JP |
1955 | |
1956 | err_msg_put: | |
1957 | nlmsg_free(msg); | |
1958 | ||
1959 | return err; | |
1960 | } | |
1961 | ||
1962 | /* | |
1963 | * Netlink cmd functions should be locked by following two functions. | |
8c0713a5 | 1964 | * Since dev gets held here, that ensures dev won't disappear in between. |
3d249d4c JP |
1965 | */ |
1966 | static struct team *team_nl_team_get(struct genl_info *info) | |
1967 | { | |
1968 | struct net *net = genl_info_net(info); | |
1969 | int ifindex; | |
1970 | struct net_device *dev; | |
1971 | struct team *team; | |
1972 | ||
1973 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) | |
1974 | return NULL; | |
1975 | ||
1976 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); | |
8c0713a5 | 1977 | dev = dev_get_by_index(net, ifindex); |
3d249d4c | 1978 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
8c0713a5 JP |
1979 | if (dev) |
1980 | dev_put(dev); | |
3d249d4c JP |
1981 | return NULL; |
1982 | } | |
1983 | ||
1984 | team = netdev_priv(dev); | |
61dc3461 | 1985 | mutex_lock(&team->lock); |
3d249d4c JP |
1986 | return team; |
1987 | } | |
1988 | ||
1989 | static void team_nl_team_put(struct team *team) | |
1990 | { | |
61dc3461 | 1991 | mutex_unlock(&team->lock); |
8c0713a5 | 1992 | dev_put(team->dev); |
3d249d4c JP |
1993 | } |
1994 | ||
9b00cf2d | 1995 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
15e47304 | 1996 | struct team *team, u32 portid); |
9b00cf2d | 1997 | |
15e47304 | 1998 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) |
9b00cf2d | 1999 | { |
15e47304 | 2000 | return genlmsg_unicast(dev_net(team->dev), skb, portid); |
9b00cf2d JP |
2001 | } |
2002 | ||
01048d9a JP |
2003 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
2004 | struct team_option_inst *opt_inst) | |
2005 | { | |
2006 | struct nlattr *option_item; | |
2007 | struct team_option *option = opt_inst->option; | |
9b00cf2d | 2008 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
01048d9a JP |
2009 | struct team_gsetter_ctx ctx; |
2010 | int err; | |
2011 | ||
9b00cf2d JP |
2012 | ctx.info = opt_inst_info; |
2013 | err = team_option_get(team, opt_inst, &ctx); | |
2014 | if (err) | |
2015 | return err; | |
2016 | ||
01048d9a JP |
2017 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
2018 | if (!option_item) | |
9b00cf2d | 2019 | return -EMSGSIZE; |
01048d9a | 2020 | |
9b00cf2d JP |
2021 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
2022 | goto nest_cancel; | |
01048d9a JP |
2023 | if (opt_inst_info->port && |
2024 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, | |
2025 | opt_inst_info->port->dev->ifindex)) | |
9b00cf2d | 2026 | goto nest_cancel; |
01048d9a JP |
2027 | if (opt_inst->option->array_size && |
2028 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, | |
2029 | opt_inst_info->array_index)) | |
9b00cf2d | 2030 | goto nest_cancel; |
01048d9a JP |
2031 | |
2032 | switch (option->type) { | |
2033 | case TEAM_OPTION_TYPE_U32: | |
2034 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) | |
9b00cf2d | 2035 | goto nest_cancel; |
01048d9a | 2036 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
9b00cf2d | 2037 | goto nest_cancel; |
01048d9a JP |
2038 | break; |
2039 | case TEAM_OPTION_TYPE_STRING: | |
2040 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) | |
9b00cf2d | 2041 | goto nest_cancel; |
01048d9a JP |
2042 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
2043 | ctx.data.str_val)) | |
9b00cf2d | 2044 | goto nest_cancel; |
01048d9a JP |
2045 | break; |
2046 | case TEAM_OPTION_TYPE_BINARY: | |
2047 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) | |
9b00cf2d | 2048 | goto nest_cancel; |
01048d9a JP |
2049 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
2050 | ctx.data.bin_val.ptr)) | |
9b00cf2d | 2051 | goto nest_cancel; |
01048d9a JP |
2052 | break; |
2053 | case TEAM_OPTION_TYPE_BOOL: | |
2054 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) | |
9b00cf2d | 2055 | goto nest_cancel; |
01048d9a JP |
2056 | if (ctx.data.bool_val && |
2057 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) | |
9b00cf2d | 2058 | goto nest_cancel; |
01048d9a | 2059 | break; |
69821638 JP |
2060 | case TEAM_OPTION_TYPE_S32: |
2061 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) | |
2062 | goto nest_cancel; | |
2063 | if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) | |
2064 | goto nest_cancel; | |
2065 | break; | |
01048d9a JP |
2066 | default: |
2067 | BUG(); | |
2068 | } | |
9b00cf2d JP |
2069 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
2070 | goto nest_cancel; | |
2071 | if (opt_inst->changed) { | |
2072 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) | |
2073 | goto nest_cancel; | |
2074 | opt_inst->changed = false; | |
2075 | } | |
01048d9a JP |
2076 | nla_nest_end(skb, option_item); |
2077 | return 0; | |
2078 | ||
9b00cf2d JP |
2079 | nest_cancel: |
2080 | nla_nest_cancel(skb, option_item); | |
2081 | return -EMSGSIZE; | |
2082 | } | |
2083 | ||
2084 | static int __send_and_alloc_skb(struct sk_buff **pskb, | |
15e47304 | 2085 | struct team *team, u32 portid, |
9b00cf2d JP |
2086 | team_nl_send_func_t *send_func) |
2087 | { | |
2088 | int err; | |
2089 | ||
2090 | if (*pskb) { | |
15e47304 | 2091 | err = send_func(*pskb, team, portid); |
9b00cf2d JP |
2092 | if (err) |
2093 | return err; | |
2094 | } | |
58050fce | 2095 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9b00cf2d JP |
2096 | if (!*pskb) |
2097 | return -ENOMEM; | |
2098 | return 0; | |
01048d9a JP |
2099 | } |
2100 | ||
15e47304 | 2101 | static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, |
9b00cf2d | 2102 | int flags, team_nl_send_func_t *send_func, |
01048d9a | 2103 | struct list_head *sel_opt_inst_list) |
3d249d4c JP |
2104 | { |
2105 | struct nlattr *option_list; | |
9b00cf2d | 2106 | struct nlmsghdr *nlh; |
3d249d4c | 2107 | void *hdr; |
80f7c668 JP |
2108 | struct team_option_inst *opt_inst; |
2109 | int err; | |
9b00cf2d JP |
2110 | struct sk_buff *skb = NULL; |
2111 | bool incomplete; | |
2112 | int i; | |
3d249d4c | 2113 | |
9b00cf2d JP |
2114 | opt_inst = list_first_entry(sel_opt_inst_list, |
2115 | struct team_option_inst, tmp_list); | |
2116 | ||
2117 | start_again: | |
15e47304 | 2118 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2119 | if (err) |
2120 | return err; | |
2121 | ||
15e47304 | 2122 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
3d249d4c | 2123 | TEAM_CMD_OPTIONS_GET); |
f63d10b9 PB |
2124 | if (!hdr) { |
2125 | nlmsg_free(skb); | |
a326e6dd | 2126 | return -EMSGSIZE; |
f63d10b9 | 2127 | } |
3d249d4c | 2128 | |
86ebb02d DM |
2129 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2130 | goto nla_put_failure; | |
3d249d4c JP |
2131 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
2132 | if (!option_list) | |
75db986a | 2133 | goto nla_put_failure; |
3d249d4c | 2134 | |
9b00cf2d JP |
2135 | i = 0; |
2136 | incomplete = false; | |
2137 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { | |
01048d9a | 2138 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
9b00cf2d JP |
2139 | if (err) { |
2140 | if (err == -EMSGSIZE) { | |
2141 | if (!i) | |
2142 | goto errout; | |
2143 | incomplete = true; | |
2144 | break; | |
2145 | } | |
01048d9a | 2146 | goto errout; |
9b00cf2d JP |
2147 | } |
2148 | i++; | |
3d249d4c JP |
2149 | } |
2150 | ||
2151 | nla_nest_end(skb, option_list); | |
9b00cf2d JP |
2152 | genlmsg_end(skb, hdr); |
2153 | if (incomplete) | |
2154 | goto start_again; | |
2155 | ||
2156 | send_done: | |
15e47304 | 2157 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
9b00cf2d | 2158 | if (!nlh) { |
15e47304 | 2159 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2160 | if (err) |
2161 | goto errout; | |
2162 | goto send_done; | |
2163 | } | |
2164 | ||
15e47304 | 2165 | return send_func(skb, team, portid); |
3d249d4c JP |
2166 | |
2167 | nla_put_failure: | |
80f7c668 JP |
2168 | err = -EMSGSIZE; |
2169 | errout: | |
3d249d4c | 2170 | genlmsg_cancel(skb, hdr); |
9b00cf2d | 2171 | nlmsg_free(skb); |
80f7c668 | 2172 | return err; |
3d249d4c JP |
2173 | } |
2174 | ||
3d249d4c JP |
2175 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
2176 | { | |
2177 | struct team *team; | |
9b00cf2d | 2178 | struct team_option_inst *opt_inst; |
3d249d4c | 2179 | int err; |
9b00cf2d | 2180 | LIST_HEAD(sel_opt_inst_list); |
3d249d4c JP |
2181 | |
2182 | team = team_nl_team_get(info); | |
2183 | if (!team) | |
2184 | return -EINVAL; | |
2185 | ||
9b00cf2d JP |
2186 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
2187 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
15e47304 | 2188 | err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, |
9b00cf2d JP |
2189 | NLM_F_ACK, team_nl_send_unicast, |
2190 | &sel_opt_inst_list); | |
3d249d4c JP |
2191 | |
2192 | team_nl_team_put(team); | |
2193 | ||
2194 | return err; | |
2195 | } | |
2196 | ||
2fcdb2c9 JP |
2197 | static int team_nl_send_event_options_get(struct team *team, |
2198 | struct list_head *sel_opt_inst_list); | |
2199 | ||
3d249d4c JP |
2200 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
2201 | { | |
2202 | struct team *team; | |
2203 | int err = 0; | |
2204 | int i; | |
2205 | struct nlattr *nl_option; | |
2fcdb2c9 | 2206 | LIST_HEAD(opt_inst_list); |
3d249d4c JP |
2207 | |
2208 | team = team_nl_team_get(info); | |
2209 | if (!team) | |
2210 | return -EINVAL; | |
2211 | ||
2212 | err = -EINVAL; | |
2213 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { | |
2214 | err = -EINVAL; | |
2215 | goto team_put; | |
2216 | } | |
2217 | ||
2218 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { | |
80f7c668 | 2219 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
b1303326 | 2220 | struct nlattr *attr; |
14f066ba | 2221 | struct nlattr *attr_data; |
3d249d4c | 2222 | enum team_option_type opt_type; |
80f7c668 | 2223 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
b1303326 JP |
2224 | u32 opt_array_index = 0; |
2225 | bool opt_is_array = false; | |
80f7c668 | 2226 | struct team_option_inst *opt_inst; |
3d249d4c JP |
2227 | char *opt_name; |
2228 | bool opt_found = false; | |
2229 | ||
2230 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { | |
2231 | err = -EINVAL; | |
2232 | goto team_put; | |
2233 | } | |
80f7c668 | 2234 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
3d249d4c JP |
2235 | nl_option, team_nl_option_policy); |
2236 | if (err) | |
2237 | goto team_put; | |
80f7c668 | 2238 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
14f066ba | 2239 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
3d249d4c JP |
2240 | err = -EINVAL; |
2241 | goto team_put; | |
2242 | } | |
80f7c668 | 2243 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
3d249d4c JP |
2244 | case NLA_U32: |
2245 | opt_type = TEAM_OPTION_TYPE_U32; | |
2246 | break; | |
2247 | case NLA_STRING: | |
2248 | opt_type = TEAM_OPTION_TYPE_STRING; | |
2249 | break; | |
2615598f JP |
2250 | case NLA_BINARY: |
2251 | opt_type = TEAM_OPTION_TYPE_BINARY; | |
2252 | break; | |
14f066ba JP |
2253 | case NLA_FLAG: |
2254 | opt_type = TEAM_OPTION_TYPE_BOOL; | |
2255 | break; | |
69821638 JP |
2256 | case NLA_S32: |
2257 | opt_type = TEAM_OPTION_TYPE_S32; | |
2258 | break; | |
3d249d4c JP |
2259 | default: |
2260 | goto team_put; | |
2261 | } | |
2262 | ||
14f066ba JP |
2263 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
2264 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { | |
2265 | err = -EINVAL; | |
2266 | goto team_put; | |
2267 | } | |
2268 | ||
80f7c668 | 2269 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
b1303326 JP |
2270 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
2271 | if (attr) | |
2272 | opt_port_ifindex = nla_get_u32(attr); | |
2273 | ||
2274 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; | |
2275 | if (attr) { | |
2276 | opt_is_array = true; | |
2277 | opt_array_index = nla_get_u32(attr); | |
2278 | } | |
80f7c668 JP |
2279 | |
2280 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
2281 | struct team_option *option = opt_inst->option; | |
80f7c668 | 2282 | struct team_gsetter_ctx ctx; |
85d59a87 | 2283 | struct team_option_inst_info *opt_inst_info; |
80f7c668 | 2284 | int tmp_ifindex; |
3d249d4c | 2285 | |
85d59a87 JP |
2286 | opt_inst_info = &opt_inst->info; |
2287 | tmp_ifindex = opt_inst_info->port ? | |
2288 | opt_inst_info->port->dev->ifindex : 0; | |
3d249d4c | 2289 | if (option->type != opt_type || |
80f7c668 | 2290 | strcmp(option->name, opt_name) || |
b1303326 JP |
2291 | tmp_ifindex != opt_port_ifindex || |
2292 | (option->array_size && !opt_is_array) || | |
85d59a87 | 2293 | opt_inst_info->array_index != opt_array_index) |
3d249d4c JP |
2294 | continue; |
2295 | opt_found = true; | |
85d59a87 | 2296 | ctx.info = opt_inst_info; |
3d249d4c JP |
2297 | switch (opt_type) { |
2298 | case TEAM_OPTION_TYPE_U32: | |
14f066ba | 2299 | ctx.data.u32_val = nla_get_u32(attr_data); |
3d249d4c JP |
2300 | break; |
2301 | case TEAM_OPTION_TYPE_STRING: | |
14f066ba | 2302 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
2615598f JP |
2303 | err = -EINVAL; |
2304 | goto team_put; | |
2305 | } | |
14f066ba | 2306 | ctx.data.str_val = nla_data(attr_data); |
3d249d4c | 2307 | break; |
2615598f | 2308 | case TEAM_OPTION_TYPE_BINARY: |
14f066ba JP |
2309 | ctx.data.bin_val.len = nla_len(attr_data); |
2310 | ctx.data.bin_val.ptr = nla_data(attr_data); | |
2311 | break; | |
2312 | case TEAM_OPTION_TYPE_BOOL: | |
2313 | ctx.data.bool_val = attr_data ? true : false; | |
2615598f | 2314 | break; |
69821638 JP |
2315 | case TEAM_OPTION_TYPE_S32: |
2316 | ctx.data.s32_val = nla_get_s32(attr_data); | |
2317 | break; | |
3d249d4c JP |
2318 | default: |
2319 | BUG(); | |
2320 | } | |
80f7c668 | 2321 | err = team_option_set(team, opt_inst, &ctx); |
3d249d4c JP |
2322 | if (err) |
2323 | goto team_put; | |
2fcdb2c9 JP |
2324 | opt_inst->changed = true; |
2325 | list_add(&opt_inst->tmp_list, &opt_inst_list); | |
3d249d4c JP |
2326 | } |
2327 | if (!opt_found) { | |
2328 | err = -ENOENT; | |
2329 | goto team_put; | |
2330 | } | |
2331 | } | |
2332 | ||
2fcdb2c9 JP |
2333 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
2334 | ||
3d249d4c JP |
2335 | team_put: |
2336 | team_nl_team_put(team); | |
2337 | ||
2338 | return err; | |
2339 | } | |
2340 | ||
d90f889e JP |
2341 | static int team_nl_fill_one_port_get(struct sk_buff *skb, |
2342 | struct team_port *port) | |
2343 | { | |
2344 | struct nlattr *port_item; | |
2345 | ||
2346 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); | |
2347 | if (!port_item) | |
2348 | goto nest_cancel; | |
2349 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) | |
2350 | goto nest_cancel; | |
2351 | if (port->changed) { | |
2352 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) | |
2353 | goto nest_cancel; | |
2354 | port->changed = false; | |
2355 | } | |
2356 | if ((port->removed && | |
2357 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || | |
2358 | (port->state.linkup && | |
2359 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || | |
2360 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || | |
2361 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) | |
2362 | goto nest_cancel; | |
2363 | nla_nest_end(skb, port_item); | |
2364 | return 0; | |
2365 | ||
2366 | nest_cancel: | |
2367 | nla_nest_cancel(skb, port_item); | |
2368 | return -EMSGSIZE; | |
2369 | } | |
2370 | ||
2371 | static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, | |
2372 | int flags, team_nl_send_func_t *send_func, | |
2373 | struct team_port *one_port) | |
3d249d4c JP |
2374 | { |
2375 | struct nlattr *port_list; | |
d90f889e | 2376 | struct nlmsghdr *nlh; |
3d249d4c JP |
2377 | void *hdr; |
2378 | struct team_port *port; | |
d90f889e JP |
2379 | int err; |
2380 | struct sk_buff *skb = NULL; | |
2381 | bool incomplete; | |
2382 | int i; | |
3d249d4c | 2383 | |
3f3e7ce4 JP |
2384 | port = list_first_entry_or_null(&team->port_list, |
2385 | struct team_port, list); | |
d90f889e JP |
2386 | |
2387 | start_again: | |
2388 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2389 | if (err) | |
2390 | return err; | |
2391 | ||
2392 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, | |
3d249d4c | 2393 | TEAM_CMD_PORT_LIST_GET); |
f63d10b9 PB |
2394 | if (!hdr) { |
2395 | nlmsg_free(skb); | |
a326e6dd | 2396 | return -EMSGSIZE; |
f63d10b9 | 2397 | } |
3d249d4c | 2398 | |
86ebb02d DM |
2399 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2400 | goto nla_put_failure; | |
3d249d4c JP |
2401 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
2402 | if (!port_list) | |
3221c646 | 2403 | goto nla_put_failure; |
3d249d4c | 2404 | |
d90f889e JP |
2405 | i = 0; |
2406 | incomplete = false; | |
3d249d4c | 2407 | |
d90f889e JP |
2408 | /* If one port is selected, called wants to send port list containing |
2409 | * only this port. Otherwise go through all listed ports and send all | |
2410 | */ | |
2411 | if (one_port) { | |
2412 | err = team_nl_fill_one_port_get(skb, one_port); | |
2413 | if (err) | |
2414 | goto errout; | |
3f3e7ce4 JP |
2415 | } else if (port) { |
2416 | list_for_each_entry_from(port, &team->port_list, list) { | |
d90f889e JP |
2417 | err = team_nl_fill_one_port_get(skb, port); |
2418 | if (err) { | |
2419 | if (err == -EMSGSIZE) { | |
2420 | if (!i) | |
2421 | goto errout; | |
2422 | incomplete = true; | |
2423 | break; | |
2424 | } | |
2425 | goto errout; | |
2426 | } | |
2427 | i++; | |
b82b9183 | 2428 | } |
3d249d4c JP |
2429 | } |
2430 | ||
2431 | nla_nest_end(skb, port_list); | |
d90f889e JP |
2432 | genlmsg_end(skb, hdr); |
2433 | if (incomplete) | |
2434 | goto start_again; | |
2435 | ||
2436 | send_done: | |
2437 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2438 | if (!nlh) { | |
2439 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2440 | if (err) | |
2441 | goto errout; | |
2442 | goto send_done; | |
2443 | } | |
2444 | ||
2445 | return send_func(skb, team, portid); | |
3d249d4c JP |
2446 | |
2447 | nla_put_failure: | |
d90f889e JP |
2448 | err = -EMSGSIZE; |
2449 | errout: | |
3d249d4c | 2450 | genlmsg_cancel(skb, hdr); |
d90f889e JP |
2451 | nlmsg_free(skb); |
2452 | return err; | |
3d249d4c JP |
2453 | } |
2454 | ||
2455 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, | |
2456 | struct genl_info *info) | |
2457 | { | |
2458 | struct team *team; | |
2459 | int err; | |
2460 | ||
2461 | team = team_nl_team_get(info); | |
2462 | if (!team) | |
2463 | return -EINVAL; | |
2464 | ||
d90f889e JP |
2465 | err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, |
2466 | NLM_F_ACK, team_nl_send_unicast, NULL); | |
3d249d4c JP |
2467 | |
2468 | team_nl_team_put(team); | |
2469 | ||
2470 | return err; | |
2471 | } | |
2472 | ||
2473 | static struct genl_ops team_nl_ops[] = { | |
2474 | { | |
2475 | .cmd = TEAM_CMD_NOOP, | |
2476 | .doit = team_nl_cmd_noop, | |
2477 | .policy = team_nl_policy, | |
2478 | }, | |
2479 | { | |
2480 | .cmd = TEAM_CMD_OPTIONS_SET, | |
2481 | .doit = team_nl_cmd_options_set, | |
2482 | .policy = team_nl_policy, | |
2483 | .flags = GENL_ADMIN_PERM, | |
2484 | }, | |
2485 | { | |
2486 | .cmd = TEAM_CMD_OPTIONS_GET, | |
2487 | .doit = team_nl_cmd_options_get, | |
2488 | .policy = team_nl_policy, | |
2489 | .flags = GENL_ADMIN_PERM, | |
2490 | }, | |
2491 | { | |
2492 | .cmd = TEAM_CMD_PORT_LIST_GET, | |
2493 | .doit = team_nl_cmd_port_list_get, | |
2494 | .policy = team_nl_policy, | |
2495 | .flags = GENL_ADMIN_PERM, | |
2496 | }, | |
2497 | }; | |
2498 | ||
2499 | static struct genl_multicast_group team_change_event_mcgrp = { | |
2500 | .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, | |
2501 | }; | |
2502 | ||
9b00cf2d | 2503 | static int team_nl_send_multicast(struct sk_buff *skb, |
15e47304 | 2504 | struct team *team, u32 portid) |
9b00cf2d JP |
2505 | { |
2506 | return genlmsg_multicast_netns(dev_net(team->dev), skb, 0, | |
2507 | team_change_event_mcgrp.id, GFP_KERNEL); | |
2508 | } | |
2509 | ||
01048d9a JP |
2510 | static int team_nl_send_event_options_get(struct team *team, |
2511 | struct list_head *sel_opt_inst_list) | |
3d249d4c | 2512 | { |
9b00cf2d JP |
2513 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
2514 | sel_opt_inst_list); | |
3d249d4c JP |
2515 | } |
2516 | ||
d90f889e JP |
2517 | static int team_nl_send_event_port_get(struct team *team, |
2518 | struct team_port *port) | |
3d249d4c | 2519 | { |
d90f889e JP |
2520 | return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, |
2521 | port); | |
3d249d4c JP |
2522 | } |
2523 | ||
2524 | static int team_nl_init(void) | |
2525 | { | |
2526 | int err; | |
2527 | ||
2528 | err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, | |
2529 | ARRAY_SIZE(team_nl_ops)); | |
2530 | if (err) | |
2531 | return err; | |
2532 | ||
2533 | err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); | |
2534 | if (err) | |
2535 | goto err_change_event_grp_reg; | |
2536 | ||
2537 | return 0; | |
2538 | ||
2539 | err_change_event_grp_reg: | |
2540 | genl_unregister_family(&team_nl_family); | |
2541 | ||
2542 | return err; | |
2543 | } | |
2544 | ||
2545 | static void team_nl_fini(void) | |
2546 | { | |
2547 | genl_unregister_family(&team_nl_family); | |
2548 | } | |
2549 | ||
2550 | ||
2551 | /****************** | |
2552 | * Change checkers | |
2553 | ******************/ | |
2554 | ||
b82b9183 | 2555 | static void __team_options_change_check(struct team *team) |
3d249d4c JP |
2556 | { |
2557 | int err; | |
01048d9a JP |
2558 | struct team_option_inst *opt_inst; |
2559 | LIST_HEAD(sel_opt_inst_list); | |
3d249d4c | 2560 | |
01048d9a JP |
2561 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
2562 | if (opt_inst->changed) | |
2563 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
2564 | } | |
2565 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); | |
0c7517e9 | 2566 | if (err && err != -ESRCH) |
9b00cf2d JP |
2567 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
2568 | err); | |
3d249d4c JP |
2569 | } |
2570 | ||
2571 | /* rtnl lock is held */ | |
10f3f51d JP |
2572 | |
2573 | static void __team_port_change_send(struct team_port *port, bool linkup) | |
3d249d4c JP |
2574 | { |
2575 | int err; | |
2576 | ||
b82b9183 | 2577 | port->changed = true; |
71472ec1 JP |
2578 | port->state.linkup = linkup; |
2579 | team_refresh_port_linkup(port); | |
3d249d4c JP |
2580 | if (linkup) { |
2581 | struct ethtool_cmd ecmd; | |
2582 | ||
2583 | err = __ethtool_get_settings(port->dev, &ecmd); | |
2584 | if (!err) { | |
71472ec1 JP |
2585 | port->state.speed = ethtool_cmd_speed(&ecmd); |
2586 | port->state.duplex = ecmd.duplex; | |
3d249d4c JP |
2587 | goto send_event; |
2588 | } | |
2589 | } | |
71472ec1 JP |
2590 | port->state.speed = 0; |
2591 | port->state.duplex = 0; | |
3d249d4c JP |
2592 | |
2593 | send_event: | |
d90f889e | 2594 | err = team_nl_send_event_port_get(port->team, port); |
0c7517e9 JP |
2595 | if (err && err != -ESRCH) |
2596 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", | |
2597 | port->dev->name, err); | |
3d249d4c JP |
2598 | |
2599 | } | |
2600 | ||
06a7fc42 FL |
2601 | static void __team_carrier_check(struct team *team) |
2602 | { | |
2603 | struct team_port *port; | |
2604 | bool team_linkup; | |
2605 | ||
e185483e FL |
2606 | if (team->user_carrier_enabled) |
2607 | return; | |
2608 | ||
06a7fc42 FL |
2609 | team_linkup = false; |
2610 | list_for_each_entry(port, &team->port_list, list) { | |
2611 | if (port->linkup) { | |
2612 | team_linkup = true; | |
2613 | break; | |
2614 | } | |
2615 | } | |
2616 | ||
2617 | if (team_linkup) | |
2618 | netif_carrier_on(team->dev); | |
2619 | else | |
2620 | netif_carrier_off(team->dev); | |
2621 | } | |
2622 | ||
10f3f51d JP |
2623 | static void __team_port_change_check(struct team_port *port, bool linkup) |
2624 | { | |
2625 | if (port->state.linkup != linkup) | |
2626 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2627 | __team_carrier_check(port->team); |
10f3f51d JP |
2628 | } |
2629 | ||
2630 | static void __team_port_change_port_added(struct team_port *port, bool linkup) | |
2631 | { | |
2632 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2633 | __team_carrier_check(port->team); |
10f3f51d JP |
2634 | } |
2635 | ||
2636 | static void __team_port_change_port_removed(struct team_port *port) | |
2637 | { | |
2638 | port->removed = true; | |
2639 | __team_port_change_send(port, false); | |
06a7fc42 | 2640 | __team_carrier_check(port->team); |
10f3f51d JP |
2641 | } |
2642 | ||
3d249d4c JP |
2643 | static void team_port_change_check(struct team_port *port, bool linkup) |
2644 | { | |
2645 | struct team *team = port->team; | |
2646 | ||
61dc3461 | 2647 | mutex_lock(&team->lock); |
3d249d4c | 2648 | __team_port_change_check(port, linkup); |
61dc3461 | 2649 | mutex_unlock(&team->lock); |
3d249d4c JP |
2650 | } |
2651 | ||
0f1aad2b | 2652 | |
3d249d4c JP |
2653 | /************************************ |
2654 | * Net device notifier event handler | |
2655 | ************************************/ | |
2656 | ||
2657 | static int team_device_event(struct notifier_block *unused, | |
2658 | unsigned long event, void *ptr) | |
2659 | { | |
2660 | struct net_device *dev = (struct net_device *) ptr; | |
2661 | struct team_port *port; | |
2662 | ||
2663 | port = team_port_get_rtnl(dev); | |
2664 | if (!port) | |
2665 | return NOTIFY_DONE; | |
2666 | ||
2667 | switch (event) { | |
2668 | case NETDEV_UP: | |
2669 | if (netif_carrier_ok(dev)) | |
2670 | team_port_change_check(port, true); | |
2671 | case NETDEV_DOWN: | |
2672 | team_port_change_check(port, false); | |
2673 | case NETDEV_CHANGE: | |
2674 | if (netif_running(port->dev)) | |
2675 | team_port_change_check(port, | |
2676 | !!netif_carrier_ok(port->dev)); | |
2677 | break; | |
2678 | case NETDEV_UNREGISTER: | |
2679 | team_del_slave(port->team->dev, dev); | |
2680 | break; | |
2681 | case NETDEV_FEAT_CHANGE: | |
2682 | team_compute_features(port->team); | |
2683 | break; | |
2684 | case NETDEV_CHANGEMTU: | |
2685 | /* Forbid to change mtu of underlaying device */ | |
35f85245 JP |
2686 | if (!port->team->port_mtu_change_allowed) |
2687 | return NOTIFY_BAD; | |
2688 | break; | |
3d249d4c JP |
2689 | case NETDEV_PRE_TYPE_CHANGE: |
2690 | /* Forbid to change type of underlaying device */ | |
2691 | return NOTIFY_BAD; | |
2692 | } | |
2693 | return NOTIFY_DONE; | |
2694 | } | |
2695 | ||
2696 | static struct notifier_block team_notifier_block __read_mostly = { | |
2697 | .notifier_call = team_device_event, | |
2698 | }; | |
2699 | ||
2700 | ||
2701 | /*********************** | |
2702 | * Module init and exit | |
2703 | ***********************/ | |
2704 | ||
2705 | static int __init team_module_init(void) | |
2706 | { | |
2707 | int err; | |
2708 | ||
2709 | register_netdevice_notifier(&team_notifier_block); | |
2710 | ||
2711 | err = rtnl_link_register(&team_link_ops); | |
2712 | if (err) | |
2713 | goto err_rtnl_reg; | |
2714 | ||
2715 | err = team_nl_init(); | |
2716 | if (err) | |
2717 | goto err_nl_init; | |
2718 | ||
2719 | return 0; | |
2720 | ||
2721 | err_nl_init: | |
2722 | rtnl_link_unregister(&team_link_ops); | |
2723 | ||
2724 | err_rtnl_reg: | |
2725 | unregister_netdevice_notifier(&team_notifier_block); | |
2726 | ||
2727 | return err; | |
2728 | } | |
2729 | ||
2730 | static void __exit team_module_exit(void) | |
2731 | { | |
2732 | team_nl_fini(); | |
2733 | rtnl_link_unregister(&team_link_ops); | |
2734 | unregister_netdevice_notifier(&team_notifier_block); | |
2735 | } | |
2736 | ||
2737 | module_init(team_module_init); | |
2738 | module_exit(team_module_exit); | |
2739 | ||
2740 | MODULE_LICENSE("GPL v2"); | |
2741 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
2742 | MODULE_DESCRIPTION("Ethernet team device driver"); | |
2743 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |