Commit | Line | Data |
---|---|---|
3d249d4c | 1 | /* |
0d572e45 | 2 | * drivers/net/team/team.c - Network team device driver |
3d249d4c JP |
3 | * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com> |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | */ | |
10 | ||
11 | #include <linux/kernel.h> | |
12 | #include <linux/types.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/rcupdate.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/ctype.h> | |
19 | #include <linux/notifier.h> | |
20 | #include <linux/netdevice.h> | |
bd2d0837 | 21 | #include <linux/netpoll.h> |
87002b03 | 22 | #include <linux/if_vlan.h> |
3d249d4c JP |
23 | #include <linux/if_arp.h> |
24 | #include <linux/socket.h> | |
25 | #include <linux/etherdevice.h> | |
26 | #include <linux/rtnetlink.h> | |
27 | #include <net/rtnetlink.h> | |
28 | #include <net/genetlink.h> | |
29 | #include <net/netlink.h> | |
6c85f2bd | 30 | #include <net/sch_generic.h> |
7f51c587 | 31 | #include <generated/utsrelease.h> |
3d249d4c JP |
32 | #include <linux/if_team.h> |
33 | ||
34 | #define DRV_NAME "team" | |
35 | ||
36 | ||
37 | /********** | |
38 | * Helpers | |
39 | **********/ | |
40 | ||
41 | #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) | |
42 | ||
43 | static struct team_port *team_port_get_rcu(const struct net_device *dev) | |
44 | { | |
45 | struct team_port *port = rcu_dereference(dev->rx_handler_data); | |
46 | ||
47 | return team_port_exists(dev) ? port : NULL; | |
48 | } | |
49 | ||
50 | static struct team_port *team_port_get_rtnl(const struct net_device *dev) | |
51 | { | |
52 | struct team_port *port = rtnl_dereference(dev->rx_handler_data); | |
53 | ||
54 | return team_port_exists(dev) ? port : NULL; | |
55 | } | |
56 | ||
57 | /* | |
1d76efe1 | 58 | * Since the ability to change device address for open port device is tested in |
3d249d4c JP |
59 | * team_port_add, this function can be called without control of return value |
60 | */ | |
1d76efe1 JP |
61 | static int __set_port_dev_addr(struct net_device *port_dev, |
62 | const unsigned char *dev_addr) | |
3d249d4c JP |
63 | { |
64 | struct sockaddr addr; | |
65 | ||
1d76efe1 JP |
66 | memcpy(addr.sa_data, dev_addr, port_dev->addr_len); |
67 | addr.sa_family = port_dev->type; | |
3d249d4c JP |
68 | return dev_set_mac_address(port_dev, &addr); |
69 | } | |
70 | ||
1d76efe1 | 71 | static int team_port_set_orig_dev_addr(struct team_port *port) |
3d249d4c | 72 | { |
1d76efe1 | 73 | return __set_port_dev_addr(port->dev, port->orig.dev_addr); |
3d249d4c JP |
74 | } |
75 | ||
acbba0d0 JP |
76 | static int team_port_set_team_dev_addr(struct team *team, |
77 | struct team_port *port) | |
3d249d4c | 78 | { |
acbba0d0 | 79 | return __set_port_dev_addr(port->dev, team->dev->dev_addr); |
3d249d4c | 80 | } |
acbba0d0 JP |
81 | |
82 | int team_modeop_port_enter(struct team *team, struct team_port *port) | |
83 | { | |
84 | return team_port_set_team_dev_addr(team, port); | |
85 | } | |
86 | EXPORT_SYMBOL(team_modeop_port_enter); | |
87 | ||
88 | void team_modeop_port_change_dev_addr(struct team *team, | |
89 | struct team_port *port) | |
90 | { | |
91 | team_port_set_team_dev_addr(team, port); | |
92 | } | |
93 | EXPORT_SYMBOL(team_modeop_port_change_dev_addr); | |
3d249d4c | 94 | |
71472ec1 JP |
95 | static void team_refresh_port_linkup(struct team_port *port) |
96 | { | |
97 | port->linkup = port->user.linkup_enabled ? port->user.linkup : | |
98 | port->state.linkup; | |
99 | } | |
3d249d4c | 100 | |
0f1aad2b | 101 | |
3d249d4c JP |
102 | /******************* |
103 | * Options handling | |
104 | *******************/ | |
105 | ||
80f7c668 JP |
106 | struct team_option_inst { /* One for each option instance */ |
107 | struct list_head list; | |
01048d9a | 108 | struct list_head tmp_list; |
80f7c668 | 109 | struct team_option *option; |
85d59a87 | 110 | struct team_option_inst_info info; |
80f7c668 JP |
111 | bool changed; |
112 | bool removed; | |
113 | }; | |
114 | ||
115 | static struct team_option *__team_find_option(struct team *team, | |
116 | const char *opt_name) | |
358b8382 JP |
117 | { |
118 | struct team_option *option; | |
119 | ||
120 | list_for_each_entry(option, &team->option_list, list) { | |
121 | if (strcmp(option->name, opt_name) == 0) | |
122 | return option; | |
123 | } | |
124 | return NULL; | |
125 | } | |
126 | ||
80f7c668 JP |
127 | static void __team_option_inst_del(struct team_option_inst *opt_inst) |
128 | { | |
129 | list_del(&opt_inst->list); | |
130 | kfree(opt_inst); | |
131 | } | |
132 | ||
133 | static void __team_option_inst_del_option(struct team *team, | |
134 | struct team_option *option) | |
135 | { | |
136 | struct team_option_inst *opt_inst, *tmp; | |
137 | ||
138 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
139 | if (opt_inst->option == option) | |
140 | __team_option_inst_del(opt_inst); | |
141 | } | |
142 | } | |
143 | ||
b1303326 JP |
144 | static int __team_option_inst_add(struct team *team, struct team_option *option, |
145 | struct team_port *port) | |
146 | { | |
147 | struct team_option_inst *opt_inst; | |
148 | unsigned int array_size; | |
149 | unsigned int i; | |
85d59a87 | 150 | int err; |
b1303326 JP |
151 | |
152 | array_size = option->array_size; | |
153 | if (!array_size) | |
154 | array_size = 1; /* No array but still need one instance */ | |
155 | ||
156 | for (i = 0; i < array_size; i++) { | |
157 | opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); | |
158 | if (!opt_inst) | |
159 | return -ENOMEM; | |
160 | opt_inst->option = option; | |
85d59a87 JP |
161 | opt_inst->info.port = port; |
162 | opt_inst->info.array_index = i; | |
b1303326 JP |
163 | opt_inst->changed = true; |
164 | opt_inst->removed = false; | |
165 | list_add_tail(&opt_inst->list, &team->option_inst_list); | |
85d59a87 JP |
166 | if (option->init) { |
167 | err = option->init(team, &opt_inst->info); | |
168 | if (err) | |
169 | return err; | |
170 | } | |
171 | ||
b1303326 JP |
172 | } |
173 | return 0; | |
174 | } | |
175 | ||
80f7c668 JP |
176 | static int __team_option_inst_add_option(struct team *team, |
177 | struct team_option *option) | |
178 | { | |
179 | struct team_port *port; | |
180 | int err; | |
181 | ||
b1303326 | 182 | if (!option->per_port) { |
f88725ff | 183 | err = __team_option_inst_add(team, option, NULL); |
b1303326 JP |
184 | if (err) |
185 | goto inst_del_option; | |
186 | } | |
80f7c668 JP |
187 | |
188 | list_for_each_entry(port, &team->port_list, list) { | |
189 | err = __team_option_inst_add(team, option, port); | |
190 | if (err) | |
191 | goto inst_del_option; | |
192 | } | |
193 | return 0; | |
194 | ||
195 | inst_del_option: | |
196 | __team_option_inst_del_option(team, option); | |
197 | return err; | |
198 | } | |
199 | ||
200 | static void __team_option_inst_mark_removed_option(struct team *team, | |
201 | struct team_option *option) | |
202 | { | |
203 | struct team_option_inst *opt_inst; | |
204 | ||
205 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
206 | if (opt_inst->option == option) { | |
207 | opt_inst->changed = true; | |
208 | opt_inst->removed = true; | |
209 | } | |
210 | } | |
211 | } | |
212 | ||
213 | static void __team_option_inst_del_port(struct team *team, | |
214 | struct team_port *port) | |
215 | { | |
216 | struct team_option_inst *opt_inst, *tmp; | |
217 | ||
218 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
219 | if (opt_inst->option->per_port && | |
85d59a87 | 220 | opt_inst->info.port == port) |
80f7c668 JP |
221 | __team_option_inst_del(opt_inst); |
222 | } | |
223 | } | |
224 | ||
225 | static int __team_option_inst_add_port(struct team *team, | |
226 | struct team_port *port) | |
227 | { | |
228 | struct team_option *option; | |
229 | int err; | |
230 | ||
231 | list_for_each_entry(option, &team->option_list, list) { | |
232 | if (!option->per_port) | |
233 | continue; | |
234 | err = __team_option_inst_add(team, option, port); | |
235 | if (err) | |
236 | goto inst_del_port; | |
237 | } | |
238 | return 0; | |
239 | ||
240 | inst_del_port: | |
241 | __team_option_inst_del_port(team, port); | |
242 | return err; | |
243 | } | |
244 | ||
245 | static void __team_option_inst_mark_removed_port(struct team *team, | |
246 | struct team_port *port) | |
247 | { | |
248 | struct team_option_inst *opt_inst; | |
249 | ||
250 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
85d59a87 | 251 | if (opt_inst->info.port == port) { |
80f7c668 JP |
252 | opt_inst->changed = true; |
253 | opt_inst->removed = true; | |
254 | } | |
255 | } | |
256 | } | |
257 | ||
258 | static int __team_options_register(struct team *team, | |
259 | const struct team_option *option, | |
260 | size_t option_count) | |
3d249d4c JP |
261 | { |
262 | int i; | |
2bba19ff | 263 | struct team_option **dst_opts; |
358b8382 | 264 | int err; |
3d249d4c | 265 | |
2bba19ff JP |
266 | dst_opts = kzalloc(sizeof(struct team_option *) * option_count, |
267 | GFP_KERNEL); | |
268 | if (!dst_opts) | |
269 | return -ENOMEM; | |
358b8382 | 270 | for (i = 0; i < option_count; i++, option++) { |
358b8382 JP |
271 | if (__team_find_option(team, option->name)) { |
272 | err = -EEXIST; | |
80f7c668 | 273 | goto alloc_rollback; |
358b8382 | 274 | } |
f8a15af0 JP |
275 | dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); |
276 | if (!dst_opts[i]) { | |
358b8382 | 277 | err = -ENOMEM; |
80f7c668 | 278 | goto alloc_rollback; |
358b8382 | 279 | } |
358b8382 JP |
280 | } |
281 | ||
b82b9183 | 282 | for (i = 0; i < option_count; i++) { |
80f7c668 JP |
283 | err = __team_option_inst_add_option(team, dst_opts[i]); |
284 | if (err) | |
285 | goto inst_rollback; | |
358b8382 | 286 | list_add_tail(&dst_opts[i]->list, &team->option_list); |
b82b9183 | 287 | } |
358b8382 | 288 | |
2bba19ff | 289 | kfree(dst_opts); |
358b8382 JP |
290 | return 0; |
291 | ||
80f7c668 JP |
292 | inst_rollback: |
293 | for (i--; i >= 0; i--) | |
294 | __team_option_inst_del_option(team, dst_opts[i]); | |
295 | ||
296 | i = option_count - 1; | |
297 | alloc_rollback: | |
298 | for (i--; i >= 0; i--) | |
358b8382 JP |
299 | kfree(dst_opts[i]); |
300 | ||
2bba19ff | 301 | kfree(dst_opts); |
358b8382 | 302 | return err; |
3d249d4c | 303 | } |
358b8382 | 304 | |
b82b9183 JP |
305 | static void __team_options_mark_removed(struct team *team, |
306 | const struct team_option *option, | |
307 | size_t option_count) | |
308 | { | |
309 | int i; | |
310 | ||
311 | for (i = 0; i < option_count; i++, option++) { | |
312 | struct team_option *del_opt; | |
3d249d4c | 313 | |
b82b9183 | 314 | del_opt = __team_find_option(team, option->name); |
80f7c668 JP |
315 | if (del_opt) |
316 | __team_option_inst_mark_removed_option(team, del_opt); | |
b82b9183 JP |
317 | } |
318 | } | |
3d249d4c JP |
319 | |
320 | static void __team_options_unregister(struct team *team, | |
358b8382 | 321 | const struct team_option *option, |
3d249d4c JP |
322 | size_t option_count) |
323 | { | |
324 | int i; | |
325 | ||
358b8382 JP |
326 | for (i = 0; i < option_count; i++, option++) { |
327 | struct team_option *del_opt; | |
328 | ||
329 | del_opt = __team_find_option(team, option->name); | |
330 | if (del_opt) { | |
80f7c668 | 331 | __team_option_inst_del_option(team, del_opt); |
358b8382 JP |
332 | list_del(&del_opt->list); |
333 | kfree(del_opt); | |
334 | } | |
335 | } | |
3d249d4c JP |
336 | } |
337 | ||
b82b9183 JP |
338 | static void __team_options_change_check(struct team *team); |
339 | ||
340 | int team_options_register(struct team *team, | |
341 | const struct team_option *option, | |
342 | size_t option_count) | |
343 | { | |
344 | int err; | |
345 | ||
346 | err = __team_options_register(team, option, option_count); | |
347 | if (err) | |
348 | return err; | |
349 | __team_options_change_check(team); | |
350 | return 0; | |
351 | } | |
352 | EXPORT_SYMBOL(team_options_register); | |
353 | ||
358b8382 JP |
354 | void team_options_unregister(struct team *team, |
355 | const struct team_option *option, | |
3d249d4c JP |
356 | size_t option_count) |
357 | { | |
b82b9183 JP |
358 | __team_options_mark_removed(team, option, option_count); |
359 | __team_options_change_check(team); | |
3d249d4c | 360 | __team_options_unregister(team, option, option_count); |
3d249d4c JP |
361 | } |
362 | EXPORT_SYMBOL(team_options_unregister); | |
363 | ||
80f7c668 JP |
364 | static int team_option_get(struct team *team, |
365 | struct team_option_inst *opt_inst, | |
366 | struct team_gsetter_ctx *ctx) | |
367 | { | |
f82b959d JP |
368 | if (!opt_inst->option->getter) |
369 | return -EOPNOTSUPP; | |
80f7c668 JP |
370 | return opt_inst->option->getter(team, ctx); |
371 | } | |
372 | ||
373 | static int team_option_set(struct team *team, | |
374 | struct team_option_inst *opt_inst, | |
375 | struct team_gsetter_ctx *ctx) | |
3d249d4c | 376 | { |
f82b959d JP |
377 | if (!opt_inst->option->setter) |
378 | return -EOPNOTSUPP; | |
2fcdb2c9 | 379 | return opt_inst->option->setter(team, ctx); |
3d249d4c JP |
380 | } |
381 | ||
0f1aad2b JP |
382 | void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) |
383 | { | |
384 | struct team_option_inst *opt_inst; | |
385 | ||
386 | opt_inst = container_of(opt_inst_info, struct team_option_inst, info); | |
387 | opt_inst->changed = true; | |
388 | } | |
389 | EXPORT_SYMBOL(team_option_inst_set_change); | |
390 | ||
391 | void team_options_change_check(struct team *team) | |
392 | { | |
393 | __team_options_change_check(team); | |
394 | } | |
395 | EXPORT_SYMBOL(team_options_change_check); | |
396 | ||
397 | ||
3d249d4c JP |
398 | /**************** |
399 | * Mode handling | |
400 | ****************/ | |
401 | ||
402 | static LIST_HEAD(mode_list); | |
403 | static DEFINE_SPINLOCK(mode_list_lock); | |
404 | ||
0402788a JP |
405 | struct team_mode_item { |
406 | struct list_head list; | |
407 | const struct team_mode *mode; | |
408 | }; | |
409 | ||
410 | static struct team_mode_item *__find_mode(const char *kind) | |
3d249d4c | 411 | { |
0402788a | 412 | struct team_mode_item *mitem; |
3d249d4c | 413 | |
0402788a JP |
414 | list_for_each_entry(mitem, &mode_list, list) { |
415 | if (strcmp(mitem->mode->kind, kind) == 0) | |
416 | return mitem; | |
3d249d4c JP |
417 | } |
418 | return NULL; | |
419 | } | |
420 | ||
421 | static bool is_good_mode_name(const char *name) | |
422 | { | |
423 | while (*name != '\0') { | |
424 | if (!isalpha(*name) && !isdigit(*name) && *name != '_') | |
425 | return false; | |
426 | name++; | |
427 | } | |
428 | return true; | |
429 | } | |
430 | ||
0402788a | 431 | int team_mode_register(const struct team_mode *mode) |
3d249d4c JP |
432 | { |
433 | int err = 0; | |
0402788a | 434 | struct team_mode_item *mitem; |
3d249d4c JP |
435 | |
436 | if (!is_good_mode_name(mode->kind) || | |
437 | mode->priv_size > TEAM_MODE_PRIV_SIZE) | |
438 | return -EINVAL; | |
0402788a JP |
439 | |
440 | mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); | |
441 | if (!mitem) | |
442 | return -ENOMEM; | |
443 | ||
3d249d4c JP |
444 | spin_lock(&mode_list_lock); |
445 | if (__find_mode(mode->kind)) { | |
446 | err = -EEXIST; | |
0402788a | 447 | kfree(mitem); |
3d249d4c JP |
448 | goto unlock; |
449 | } | |
0402788a JP |
450 | mitem->mode = mode; |
451 | list_add_tail(&mitem->list, &mode_list); | |
3d249d4c JP |
452 | unlock: |
453 | spin_unlock(&mode_list_lock); | |
454 | return err; | |
455 | } | |
456 | EXPORT_SYMBOL(team_mode_register); | |
457 | ||
0402788a | 458 | void team_mode_unregister(const struct team_mode *mode) |
3d249d4c | 459 | { |
0402788a JP |
460 | struct team_mode_item *mitem; |
461 | ||
3d249d4c | 462 | spin_lock(&mode_list_lock); |
0402788a JP |
463 | mitem = __find_mode(mode->kind); |
464 | if (mitem) { | |
465 | list_del_init(&mitem->list); | |
466 | kfree(mitem); | |
467 | } | |
3d249d4c | 468 | spin_unlock(&mode_list_lock); |
3d249d4c JP |
469 | } |
470 | EXPORT_SYMBOL(team_mode_unregister); | |
471 | ||
0402788a | 472 | static const struct team_mode *team_mode_get(const char *kind) |
3d249d4c | 473 | { |
0402788a JP |
474 | struct team_mode_item *mitem; |
475 | const struct team_mode *mode = NULL; | |
3d249d4c JP |
476 | |
477 | spin_lock(&mode_list_lock); | |
0402788a JP |
478 | mitem = __find_mode(kind); |
479 | if (!mitem) { | |
3d249d4c JP |
480 | spin_unlock(&mode_list_lock); |
481 | request_module("team-mode-%s", kind); | |
482 | spin_lock(&mode_list_lock); | |
0402788a | 483 | mitem = __find_mode(kind); |
3d249d4c | 484 | } |
0402788a JP |
485 | if (mitem) { |
486 | mode = mitem->mode; | |
3d249d4c JP |
487 | if (!try_module_get(mode->owner)) |
488 | mode = NULL; | |
0402788a | 489 | } |
3d249d4c JP |
490 | |
491 | spin_unlock(&mode_list_lock); | |
492 | return mode; | |
493 | } | |
494 | ||
495 | static void team_mode_put(const struct team_mode *mode) | |
496 | { | |
497 | module_put(mode->owner); | |
498 | } | |
499 | ||
500 | static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) | |
501 | { | |
502 | dev_kfree_skb_any(skb); | |
503 | return false; | |
504 | } | |
505 | ||
2ea46599 | 506 | static rx_handler_result_t team_dummy_receive(struct team *team, |
507 | struct team_port *port, | |
508 | struct sk_buff *skb) | |
3d249d4c JP |
509 | { |
510 | return RX_HANDLER_ANOTHER; | |
511 | } | |
512 | ||
d299cd51 JP |
513 | static const struct team_mode __team_no_mode = { |
514 | .kind = "*NOMODE*", | |
515 | }; | |
516 | ||
517 | static bool team_is_mode_set(struct team *team) | |
518 | { | |
519 | return team->mode != &__team_no_mode; | |
520 | } | |
521 | ||
522 | static void team_set_no_mode(struct team *team) | |
523 | { | |
e185483e | 524 | team->user_carrier_enabled = false; |
d299cd51 JP |
525 | team->mode = &__team_no_mode; |
526 | } | |
527 | ||
735d381f | 528 | static void team_adjust_ops(struct team *team) |
3d249d4c JP |
529 | { |
530 | /* | |
531 | * To avoid checks in rx/tx skb paths, ensure here that non-null and | |
532 | * correct ops are always set. | |
533 | */ | |
534 | ||
735d381f | 535 | if (!team->en_port_count || !team_is_mode_set(team) || |
122bb046 | 536 | !team->mode->ops->transmit) |
3d249d4c JP |
537 | team->ops.transmit = team_dummy_transmit; |
538 | else | |
539 | team->ops.transmit = team->mode->ops->transmit; | |
540 | ||
735d381f | 541 | if (!team->en_port_count || !team_is_mode_set(team) || |
122bb046 | 542 | !team->mode->ops->receive) |
3d249d4c JP |
543 | team->ops.receive = team_dummy_receive; |
544 | else | |
545 | team->ops.receive = team->mode->ops->receive; | |
546 | } | |
547 | ||
548 | /* | |
549 | * We can benefit from the fact that it's ensured no port is present | |
550 | * at the time of mode change. Therefore no packets are in fly so there's no | |
551 | * need to set mode operations in any special way. | |
552 | */ | |
553 | static int __team_change_mode(struct team *team, | |
554 | const struct team_mode *new_mode) | |
555 | { | |
556 | /* Check if mode was previously set and do cleanup if so */ | |
d299cd51 | 557 | if (team_is_mode_set(team)) { |
3d249d4c JP |
558 | void (*exit_op)(struct team *team) = team->ops.exit; |
559 | ||
560 | /* Clear ops area so no callback is called any longer */ | |
561 | memset(&team->ops, 0, sizeof(struct team_mode_ops)); | |
562 | team_adjust_ops(team); | |
563 | ||
564 | if (exit_op) | |
565 | exit_op(team); | |
566 | team_mode_put(team->mode); | |
d299cd51 | 567 | team_set_no_mode(team); |
3d249d4c JP |
568 | /* zero private data area */ |
569 | memset(&team->mode_priv, 0, | |
570 | sizeof(struct team) - offsetof(struct team, mode_priv)); | |
571 | } | |
572 | ||
573 | if (!new_mode) | |
574 | return 0; | |
575 | ||
576 | if (new_mode->ops->init) { | |
577 | int err; | |
578 | ||
579 | err = new_mode->ops->init(team); | |
580 | if (err) | |
581 | return err; | |
582 | } | |
583 | ||
584 | team->mode = new_mode; | |
585 | memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); | |
586 | team_adjust_ops(team); | |
587 | ||
588 | return 0; | |
589 | } | |
590 | ||
591 | static int team_change_mode(struct team *team, const char *kind) | |
592 | { | |
0402788a | 593 | const struct team_mode *new_mode; |
3d249d4c JP |
594 | struct net_device *dev = team->dev; |
595 | int err; | |
596 | ||
597 | if (!list_empty(&team->port_list)) { | |
598 | netdev_err(dev, "No ports can be present during mode change\n"); | |
599 | return -EBUSY; | |
600 | } | |
601 | ||
d299cd51 | 602 | if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { |
3d249d4c JP |
603 | netdev_err(dev, "Unable to change to the same mode the team is in\n"); |
604 | return -EINVAL; | |
605 | } | |
606 | ||
607 | new_mode = team_mode_get(kind); | |
608 | if (!new_mode) { | |
609 | netdev_err(dev, "Mode \"%s\" not found\n", kind); | |
610 | return -EINVAL; | |
611 | } | |
612 | ||
613 | err = __team_change_mode(team, new_mode); | |
614 | if (err) { | |
615 | netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); | |
616 | team_mode_put(new_mode); | |
617 | return err; | |
618 | } | |
619 | ||
620 | netdev_info(dev, "Mode changed to \"%s\"\n", kind); | |
621 | return 0; | |
622 | } | |
623 | ||
624 | ||
625 | /************************ | |
626 | * Rx path frame handler | |
627 | ************************/ | |
628 | ||
629 | /* note: already called with rcu_read_lock */ | |
630 | static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) | |
631 | { | |
632 | struct sk_buff *skb = *pskb; | |
633 | struct team_port *port; | |
634 | struct team *team; | |
635 | rx_handler_result_t res; | |
636 | ||
637 | skb = skb_share_check(skb, GFP_ATOMIC); | |
638 | if (!skb) | |
639 | return RX_HANDLER_CONSUMED; | |
640 | ||
641 | *pskb = skb; | |
642 | ||
643 | port = team_port_get_rcu(skb->dev); | |
644 | team = port->team; | |
19a0b58e JP |
645 | if (!team_port_enabled(port)) { |
646 | /* allow exact match delivery for disabled ports */ | |
647 | res = RX_HANDLER_EXACT; | |
648 | } else { | |
649 | res = team->ops.receive(team, port, skb); | |
650 | } | |
3d249d4c JP |
651 | if (res == RX_HANDLER_ANOTHER) { |
652 | struct team_pcpu_stats *pcpu_stats; | |
653 | ||
654 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
655 | u64_stats_update_begin(&pcpu_stats->syncp); | |
656 | pcpu_stats->rx_packets++; | |
657 | pcpu_stats->rx_bytes += skb->len; | |
658 | if (skb->pkt_type == PACKET_MULTICAST) | |
659 | pcpu_stats->rx_multicast++; | |
660 | u64_stats_update_end(&pcpu_stats->syncp); | |
661 | ||
662 | skb->dev = team->dev; | |
663 | } else { | |
664 | this_cpu_inc(team->pcpu_stats->rx_dropped); | |
665 | } | |
666 | ||
667 | return res; | |
668 | } | |
669 | ||
670 | ||
8ff5105a JP |
671 | /************************************* |
672 | * Multiqueue Tx port select override | |
673 | *************************************/ | |
674 | ||
675 | static int team_queue_override_init(struct team *team) | |
676 | { | |
677 | struct list_head *listarr; | |
678 | unsigned int queue_cnt = team->dev->num_tx_queues - 1; | |
679 | unsigned int i; | |
680 | ||
681 | if (!queue_cnt) | |
682 | return 0; | |
683 | listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); | |
684 | if (!listarr) | |
685 | return -ENOMEM; | |
686 | team->qom_lists = listarr; | |
687 | for (i = 0; i < queue_cnt; i++) | |
688 | INIT_LIST_HEAD(listarr++); | |
689 | return 0; | |
690 | } | |
691 | ||
692 | static void team_queue_override_fini(struct team *team) | |
693 | { | |
694 | kfree(team->qom_lists); | |
695 | } | |
696 | ||
697 | static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) | |
698 | { | |
699 | return &team->qom_lists[queue_id - 1]; | |
700 | } | |
701 | ||
702 | /* | |
703 | * note: already called with rcu_read_lock | |
704 | */ | |
705 | static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) | |
706 | { | |
707 | struct list_head *qom_list; | |
708 | struct team_port *port; | |
709 | ||
710 | if (!team->queue_override_enabled || !skb->queue_mapping) | |
711 | return false; | |
712 | qom_list = __team_get_qom_list(team, skb->queue_mapping); | |
713 | list_for_each_entry_rcu(port, qom_list, qom_list) { | |
714 | if (!team_dev_queue_xmit(team, port, skb)) | |
715 | return true; | |
716 | } | |
717 | return false; | |
718 | } | |
719 | ||
720 | static void __team_queue_override_port_del(struct team *team, | |
721 | struct team_port *port) | |
722 | { | |
6c31ff36 JP |
723 | if (!port->queue_id) |
724 | return; | |
8ff5105a | 725 | list_del_rcu(&port->qom_list); |
8ff5105a JP |
726 | } |
727 | ||
728 | static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, | |
729 | struct team_port *cur) | |
730 | { | |
731 | if (port->priority < cur->priority) | |
732 | return true; | |
733 | if (port->priority > cur->priority) | |
734 | return false; | |
735 | if (port->index < cur->index) | |
736 | return true; | |
737 | return false; | |
738 | } | |
739 | ||
740 | static void __team_queue_override_port_add(struct team *team, | |
741 | struct team_port *port) | |
742 | { | |
743 | struct team_port *cur; | |
744 | struct list_head *qom_list; | |
745 | struct list_head *node; | |
746 | ||
6c31ff36 | 747 | if (!port->queue_id) |
8ff5105a | 748 | return; |
8ff5105a JP |
749 | qom_list = __team_get_qom_list(team, port->queue_id); |
750 | node = qom_list; | |
751 | list_for_each_entry(cur, qom_list, qom_list) { | |
752 | if (team_queue_override_port_has_gt_prio_than(port, cur)) | |
753 | break; | |
754 | node = &cur->qom_list; | |
755 | } | |
756 | list_add_tail_rcu(&port->qom_list, node); | |
757 | } | |
758 | ||
759 | static void __team_queue_override_enabled_check(struct team *team) | |
760 | { | |
761 | struct team_port *port; | |
762 | bool enabled = false; | |
763 | ||
764 | list_for_each_entry(port, &team->port_list, list) { | |
6c31ff36 | 765 | if (port->queue_id) { |
8ff5105a JP |
766 | enabled = true; |
767 | break; | |
768 | } | |
769 | } | |
770 | if (enabled == team->queue_override_enabled) | |
771 | return; | |
772 | netdev_dbg(team->dev, "%s queue override\n", | |
773 | enabled ? "Enabling" : "Disabling"); | |
774 | team->queue_override_enabled = enabled; | |
775 | } | |
776 | ||
6c31ff36 JP |
777 | static void team_queue_override_port_prio_changed(struct team *team, |
778 | struct team_port *port) | |
8ff5105a | 779 | { |
6c31ff36 JP |
780 | if (!port->queue_id || team_port_enabled(port)) |
781 | return; | |
8ff5105a JP |
782 | __team_queue_override_port_del(team, port); |
783 | __team_queue_override_port_add(team, port); | |
784 | __team_queue_override_enabled_check(team); | |
785 | } | |
786 | ||
6c31ff36 JP |
787 | static void team_queue_override_port_change_queue_id(struct team *team, |
788 | struct team_port *port, | |
789 | u16 new_queue_id) | |
790 | { | |
791 | if (team_port_enabled(port)) { | |
792 | __team_queue_override_port_del(team, port); | |
793 | port->queue_id = new_queue_id; | |
794 | __team_queue_override_port_add(team, port); | |
795 | __team_queue_override_enabled_check(team); | |
796 | } else { | |
797 | port->queue_id = new_queue_id; | |
798 | } | |
799 | } | |
800 | ||
801 | static void team_queue_override_port_add(struct team *team, | |
802 | struct team_port *port) | |
803 | { | |
804 | __team_queue_override_port_add(team, port); | |
805 | __team_queue_override_enabled_check(team); | |
806 | } | |
807 | ||
808 | static void team_queue_override_port_del(struct team *team, | |
809 | struct team_port *port) | |
810 | { | |
811 | __team_queue_override_port_del(team, port); | |
812 | __team_queue_override_enabled_check(team); | |
813 | } | |
814 | ||
8ff5105a | 815 | |
3d249d4c JP |
816 | /**************** |
817 | * Port handling | |
818 | ****************/ | |
819 | ||
820 | static bool team_port_find(const struct team *team, | |
821 | const struct team_port *port) | |
822 | { | |
823 | struct team_port *cur; | |
824 | ||
825 | list_for_each_entry(cur, &team->port_list, list) | |
826 | if (cur == port) | |
827 | return true; | |
828 | return false; | |
829 | } | |
830 | ||
831 | /* | |
19a0b58e JP |
832 | * Enable/disable port by adding to enabled port hashlist and setting |
833 | * port->index (Might be racy so reader could see incorrect ifindex when | |
834 | * processing a flying packet, but that is not a problem). Write guarded | |
835 | * by team->lock. | |
3d249d4c | 836 | */ |
19a0b58e JP |
837 | static void team_port_enable(struct team *team, |
838 | struct team_port *port) | |
3d249d4c | 839 | { |
19a0b58e JP |
840 | if (team_port_enabled(port)) |
841 | return; | |
842 | port->index = team->en_port_count++; | |
3d249d4c JP |
843 | hlist_add_head_rcu(&port->hlist, |
844 | team_port_index_hash(team, port->index)); | |
122bb046 | 845 | team_adjust_ops(team); |
6c31ff36 | 846 | team_queue_override_port_add(team, port); |
4bccfd17 JP |
847 | if (team->ops.port_enabled) |
848 | team->ops.port_enabled(team, port); | |
3d249d4c JP |
849 | } |
850 | ||
851 | static void __reconstruct_port_hlist(struct team *team, int rm_index) | |
852 | { | |
853 | int i; | |
854 | struct team_port *port; | |
855 | ||
19a0b58e | 856 | for (i = rm_index + 1; i < team->en_port_count; i++) { |
3d249d4c JP |
857 | port = team_get_port_by_index(team, i); |
858 | hlist_del_rcu(&port->hlist); | |
859 | port->index--; | |
860 | hlist_add_head_rcu(&port->hlist, | |
861 | team_port_index_hash(team, port->index)); | |
862 | } | |
863 | } | |
864 | ||
19a0b58e JP |
865 | static void team_port_disable(struct team *team, |
866 | struct team_port *port) | |
3d249d4c | 867 | { |
19a0b58e JP |
868 | if (!team_port_enabled(port)) |
869 | return; | |
4bccfd17 JP |
870 | if (team->ops.port_disabled) |
871 | team->ops.port_disabled(team, port); | |
3d249d4c | 872 | hlist_del_rcu(&port->hlist); |
122bb046 | 873 | __reconstruct_port_hlist(team, port->index); |
19a0b58e | 874 | port->index = -1; |
122bb046 | 875 | team->en_port_count--; |
735d381f JP |
876 | team_queue_override_port_del(team, port); |
877 | team_adjust_ops(team); | |
3d249d4c JP |
878 | } |
879 | ||
880 | #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ | |
881 | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ | |
882 | NETIF_F_HIGHDMA | NETIF_F_LRO) | |
883 | ||
884 | static void __team_compute_features(struct team *team) | |
885 | { | |
886 | struct team_port *port; | |
887 | u32 vlan_features = TEAM_VLAN_FEATURES; | |
888 | unsigned short max_hard_header_len = ETH_HLEN; | |
dc905951 | 889 | unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; |
3d249d4c JP |
890 | |
891 | list_for_each_entry(port, &team->port_list, list) { | |
892 | vlan_features = netdev_increment_features(vlan_features, | |
893 | port->dev->vlan_features, | |
894 | TEAM_VLAN_FEATURES); | |
895 | ||
dc905951 | 896 | dst_release_flag &= port->dev->priv_flags; |
3d249d4c JP |
897 | if (port->dev->hard_header_len > max_hard_header_len) |
898 | max_hard_header_len = port->dev->hard_header_len; | |
899 | } | |
900 | ||
901 | team->dev->vlan_features = vlan_features; | |
902 | team->dev->hard_header_len = max_hard_header_len; | |
903 | ||
dc905951 JP |
904 | flags = team->dev->priv_flags & ~IFF_XMIT_DST_RELEASE; |
905 | team->dev->priv_flags = flags | dst_release_flag; | |
906 | ||
3d249d4c JP |
907 | netdev_change_features(team->dev); |
908 | } | |
909 | ||
910 | static void team_compute_features(struct team *team) | |
911 | { | |
61dc3461 | 912 | mutex_lock(&team->lock); |
3d249d4c | 913 | __team_compute_features(team); |
61dc3461 | 914 | mutex_unlock(&team->lock); |
3d249d4c JP |
915 | } |
916 | ||
917 | static int team_port_enter(struct team *team, struct team_port *port) | |
918 | { | |
919 | int err = 0; | |
920 | ||
921 | dev_hold(team->dev); | |
922 | port->dev->priv_flags |= IFF_TEAM_PORT; | |
923 | if (team->ops.port_enter) { | |
924 | err = team->ops.port_enter(team, port); | |
925 | if (err) { | |
926 | netdev_err(team->dev, "Device %s failed to enter team mode\n", | |
927 | port->dev->name); | |
928 | goto err_port_enter; | |
929 | } | |
930 | } | |
931 | ||
932 | return 0; | |
933 | ||
934 | err_port_enter: | |
935 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
936 | dev_put(team->dev); | |
937 | ||
938 | return err; | |
939 | } | |
940 | ||
941 | static void team_port_leave(struct team *team, struct team_port *port) | |
942 | { | |
943 | if (team->ops.port_leave) | |
944 | team->ops.port_leave(team, port); | |
945 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
946 | dev_put(team->dev); | |
947 | } | |
948 | ||
bd2d0837 | 949 | #ifdef CONFIG_NET_POLL_CONTROLLER |
47be03a2 AW |
950 | static int team_port_enable_netpoll(struct team *team, struct team_port *port, |
951 | gfp_t gfp) | |
bd2d0837 JP |
952 | { |
953 | struct netpoll *np; | |
954 | int err; | |
955 | ||
47be03a2 | 956 | np = kzalloc(sizeof(*np), gfp); |
bd2d0837 JP |
957 | if (!np) |
958 | return -ENOMEM; | |
959 | ||
47be03a2 | 960 | err = __netpoll_setup(np, port->dev, gfp); |
bd2d0837 JP |
961 | if (err) { |
962 | kfree(np); | |
963 | return err; | |
964 | } | |
965 | port->np = np; | |
966 | return err; | |
967 | } | |
968 | ||
969 | static void team_port_disable_netpoll(struct team_port *port) | |
970 | { | |
971 | struct netpoll *np = port->np; | |
972 | ||
973 | if (!np) | |
974 | return; | |
975 | port->np = NULL; | |
976 | ||
977 | /* Wait for transmitting packets to finish before freeing. */ | |
978 | synchronize_rcu_bh(); | |
979 | __netpoll_cleanup(np); | |
980 | kfree(np); | |
981 | } | |
982 | ||
983 | static struct netpoll_info *team_netpoll_info(struct team *team) | |
984 | { | |
985 | return team->dev->npinfo; | |
986 | } | |
987 | ||
988 | #else | |
47be03a2 AW |
989 | static int team_port_enable_netpoll(struct team *team, struct team_port *port, |
990 | gfp_t gfp) | |
bd2d0837 JP |
991 | { |
992 | return 0; | |
993 | } | |
994 | static void team_port_disable_netpoll(struct team_port *port) | |
995 | { | |
996 | } | |
997 | static struct netpoll_info *team_netpoll_info(struct team *team) | |
998 | { | |
999 | return NULL; | |
1000 | } | |
1001 | #endif | |
1002 | ||
10f3f51d | 1003 | static void __team_port_change_port_added(struct team_port *port, bool linkup); |
1d76efe1 JP |
1004 | static int team_dev_type_check_change(struct net_device *dev, |
1005 | struct net_device *port_dev); | |
3d249d4c JP |
1006 | |
1007 | static int team_port_add(struct team *team, struct net_device *port_dev) | |
1008 | { | |
1009 | struct net_device *dev = team->dev; | |
1010 | struct team_port *port; | |
1011 | char *portname = port_dev->name; | |
1012 | int err; | |
1013 | ||
1d76efe1 JP |
1014 | if (port_dev->flags & IFF_LOOPBACK) { |
1015 | netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", | |
3d249d4c JP |
1016 | portname); |
1017 | return -EINVAL; | |
1018 | } | |
1019 | ||
1020 | if (team_port_exists(port_dev)) { | |
1021 | netdev_err(dev, "Device %s is already a port " | |
1022 | "of a team device\n", portname); | |
1023 | return -EBUSY; | |
1024 | } | |
1025 | ||
2c33bb37 JP |
1026 | if (port_dev->features & NETIF_F_VLAN_CHALLENGED && |
1027 | vlan_uses_dev(dev)) { | |
1028 | netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", | |
1029 | portname); | |
1030 | return -EPERM; | |
1031 | } | |
1032 | ||
1d76efe1 JP |
1033 | err = team_dev_type_check_change(dev, port_dev); |
1034 | if (err) | |
1035 | return err; | |
1036 | ||
3d249d4c JP |
1037 | if (port_dev->flags & IFF_UP) { |
1038 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", | |
1039 | portname); | |
1040 | return -EBUSY; | |
1041 | } | |
1042 | ||
5149ee58 JP |
1043 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
1044 | GFP_KERNEL); | |
3d249d4c JP |
1045 | if (!port) |
1046 | return -ENOMEM; | |
1047 | ||
1048 | port->dev = port_dev; | |
1049 | port->team = team; | |
8ff5105a | 1050 | INIT_LIST_HEAD(&port->qom_list); |
3d249d4c JP |
1051 | |
1052 | port->orig.mtu = port_dev->mtu; | |
1053 | err = dev_set_mtu(port_dev, dev->mtu); | |
1054 | if (err) { | |
1055 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); | |
1056 | goto err_set_mtu; | |
1057 | } | |
1058 | ||
1d76efe1 | 1059 | memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); |
3d249d4c JP |
1060 | |
1061 | err = team_port_enter(team, port); | |
1062 | if (err) { | |
1063 | netdev_err(dev, "Device %s failed to enter team mode\n", | |
1064 | portname); | |
1065 | goto err_port_enter; | |
1066 | } | |
1067 | ||
1068 | err = dev_open(port_dev); | |
1069 | if (err) { | |
1070 | netdev_dbg(dev, "Device %s opening failed\n", | |
1071 | portname); | |
1072 | goto err_dev_open; | |
1073 | } | |
1074 | ||
57459185 JP |
1075 | err = vlan_vids_add_by_dev(port_dev, dev); |
1076 | if (err) { | |
1077 | netdev_err(dev, "Failed to add vlan ids to device %s\n", | |
1078 | portname); | |
1079 | goto err_vids_add; | |
1080 | } | |
1081 | ||
bd2d0837 | 1082 | if (team_netpoll_info(team)) { |
47be03a2 | 1083 | err = team_port_enable_netpoll(team, port, GFP_KERNEL); |
bd2d0837 JP |
1084 | if (err) { |
1085 | netdev_err(dev, "Failed to enable netpoll on device %s\n", | |
1086 | portname); | |
1087 | goto err_enable_netpoll; | |
1088 | } | |
1089 | } | |
1090 | ||
b1cc9850 | 1091 | err = netdev_master_upper_dev_link(port_dev, dev); |
3d249d4c | 1092 | if (err) { |
b1cc9850 JP |
1093 | netdev_err(dev, "Device %s failed to set upper link\n", |
1094 | portname); | |
1095 | goto err_set_upper_link; | |
3d249d4c JP |
1096 | } |
1097 | ||
1098 | err = netdev_rx_handler_register(port_dev, team_handle_frame, | |
1099 | port); | |
1100 | if (err) { | |
1101 | netdev_err(dev, "Device %s failed to register rx_handler\n", | |
1102 | portname); | |
1103 | goto err_handler_register; | |
1104 | } | |
1105 | ||
35b384bd | 1106 | err = __team_option_inst_add_port(team, port); |
80f7c668 JP |
1107 | if (err) { |
1108 | netdev_err(dev, "Device %s failed to add per-port options\n", | |
1109 | portname); | |
1110 | goto err_option_port_add; | |
1111 | } | |
1112 | ||
19a0b58e | 1113 | port->index = -1; |
19a0b58e | 1114 | list_add_tail_rcu(&port->list, &team->port_list); |
72df935d | 1115 | team_port_enable(team, port); |
3d249d4c | 1116 | __team_compute_features(team); |
10f3f51d | 1117 | __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); |
35b384bd | 1118 | __team_options_change_check(team); |
3d249d4c JP |
1119 | |
1120 | netdev_info(dev, "Port device %s added\n", portname); | |
1121 | ||
1122 | return 0; | |
1123 | ||
80f7c668 JP |
1124 | err_option_port_add: |
1125 | netdev_rx_handler_unregister(port_dev); | |
1126 | ||
3d249d4c | 1127 | err_handler_register: |
b1cc9850 | 1128 | netdev_upper_dev_unlink(port_dev, dev); |
3d249d4c | 1129 | |
b1cc9850 | 1130 | err_set_upper_link: |
bd2d0837 JP |
1131 | team_port_disable_netpoll(port); |
1132 | ||
1133 | err_enable_netpoll: | |
57459185 JP |
1134 | vlan_vids_del_by_dev(port_dev, dev); |
1135 | ||
1136 | err_vids_add: | |
3d249d4c JP |
1137 | dev_close(port_dev); |
1138 | ||
1139 | err_dev_open: | |
1140 | team_port_leave(team, port); | |
1d76efe1 | 1141 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1142 | |
1143 | err_port_enter: | |
1144 | dev_set_mtu(port_dev, port->orig.mtu); | |
1145 | ||
1146 | err_set_mtu: | |
1147 | kfree(port); | |
1148 | ||
1149 | return err; | |
1150 | } | |
1151 | ||
10f3f51d JP |
1152 | static void __team_port_change_port_removed(struct team_port *port); |
1153 | ||
3d249d4c JP |
1154 | static int team_port_del(struct team *team, struct net_device *port_dev) |
1155 | { | |
1156 | struct net_device *dev = team->dev; | |
1157 | struct team_port *port; | |
1158 | char *portname = port_dev->name; | |
1159 | ||
1160 | port = team_port_get_rtnl(port_dev); | |
1161 | if (!port || !team_port_find(team, port)) { | |
1162 | netdev_err(dev, "Device %s does not act as a port of this team\n", | |
1163 | portname); | |
1164 | return -ENOENT; | |
1165 | } | |
1166 | ||
19a0b58e JP |
1167 | team_port_disable(team, port); |
1168 | list_del_rcu(&port->list); | |
3d249d4c | 1169 | netdev_rx_handler_unregister(port_dev); |
b1cc9850 | 1170 | netdev_upper_dev_unlink(port_dev, dev); |
bd2d0837 | 1171 | team_port_disable_netpoll(port); |
57459185 | 1172 | vlan_vids_del_by_dev(port_dev, dev); |
ba81276b VY |
1173 | dev_uc_unsync(port_dev, dev); |
1174 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1175 | dev_close(port_dev); |
1176 | team_port_leave(team, port); | |
c3969d80 JP |
1177 | |
1178 | __team_option_inst_mark_removed_port(team, port); | |
1179 | __team_options_change_check(team); | |
1180 | __team_option_inst_del_port(team, port); | |
1181 | __team_port_change_port_removed(port); | |
1182 | ||
1d76efe1 | 1183 | team_port_set_orig_dev_addr(port); |
3d249d4c | 1184 | dev_set_mtu(port_dev, port->orig.mtu); |
d80b35be | 1185 | kfree_rcu(port, rcu); |
3d249d4c JP |
1186 | netdev_info(dev, "Port device %s removed\n", portname); |
1187 | __team_compute_features(team); | |
1188 | ||
1189 | return 0; | |
1190 | } | |
1191 | ||
1192 | ||
1193 | /***************** | |
1194 | * Net device ops | |
1195 | *****************/ | |
1196 | ||
80f7c668 | 1197 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1198 | { |
d299cd51 | 1199 | ctx->data.str_val = team->mode->kind; |
3d249d4c JP |
1200 | return 0; |
1201 | } | |
1202 | ||
80f7c668 | 1203 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1204 | { |
80f7c668 | 1205 | return team_change_mode(team, ctx->data.str_val); |
3d249d4c JP |
1206 | } |
1207 | ||
acd69962 JP |
1208 | static int team_port_en_option_get(struct team *team, |
1209 | struct team_gsetter_ctx *ctx) | |
1210 | { | |
85d59a87 JP |
1211 | struct team_port *port = ctx->info->port; |
1212 | ||
1213 | ctx->data.bool_val = team_port_enabled(port); | |
acd69962 JP |
1214 | return 0; |
1215 | } | |
1216 | ||
1217 | static int team_port_en_option_set(struct team *team, | |
1218 | struct team_gsetter_ctx *ctx) | |
1219 | { | |
85d59a87 JP |
1220 | struct team_port *port = ctx->info->port; |
1221 | ||
acd69962 | 1222 | if (ctx->data.bool_val) |
85d59a87 | 1223 | team_port_enable(team, port); |
acd69962 | 1224 | else |
85d59a87 | 1225 | team_port_disable(team, port); |
acd69962 JP |
1226 | return 0; |
1227 | } | |
1228 | ||
71472ec1 JP |
1229 | static int team_user_linkup_option_get(struct team *team, |
1230 | struct team_gsetter_ctx *ctx) | |
1231 | { | |
85d59a87 JP |
1232 | struct team_port *port = ctx->info->port; |
1233 | ||
1234 | ctx->data.bool_val = port->user.linkup; | |
71472ec1 JP |
1235 | return 0; |
1236 | } | |
1237 | ||
1238 | static int team_user_linkup_option_set(struct team *team, | |
1239 | struct team_gsetter_ctx *ctx) | |
1240 | { | |
85d59a87 JP |
1241 | struct team_port *port = ctx->info->port; |
1242 | ||
1243 | port->user.linkup = ctx->data.bool_val; | |
1244 | team_refresh_port_linkup(port); | |
71472ec1 JP |
1245 | return 0; |
1246 | } | |
1247 | ||
1248 | static int team_user_linkup_en_option_get(struct team *team, | |
1249 | struct team_gsetter_ctx *ctx) | |
1250 | { | |
85d59a87 | 1251 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1252 | |
1253 | ctx->data.bool_val = port->user.linkup_enabled; | |
1254 | return 0; | |
1255 | } | |
1256 | ||
1257 | static int team_user_linkup_en_option_set(struct team *team, | |
1258 | struct team_gsetter_ctx *ctx) | |
1259 | { | |
85d59a87 | 1260 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1261 | |
1262 | port->user.linkup_enabled = ctx->data.bool_val; | |
85d59a87 | 1263 | team_refresh_port_linkup(port); |
71472ec1 JP |
1264 | return 0; |
1265 | } | |
1266 | ||
a86fc6b7 JP |
1267 | static int team_priority_option_get(struct team *team, |
1268 | struct team_gsetter_ctx *ctx) | |
1269 | { | |
1270 | struct team_port *port = ctx->info->port; | |
1271 | ||
1272 | ctx->data.s32_val = port->priority; | |
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | static int team_priority_option_set(struct team *team, | |
1277 | struct team_gsetter_ctx *ctx) | |
1278 | { | |
1279 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1280 | s32 priority = ctx->data.s32_val; |
a86fc6b7 | 1281 | |
6c31ff36 JP |
1282 | if (port->priority == priority) |
1283 | return 0; | |
1284 | port->priority = priority; | |
1285 | team_queue_override_port_prio_changed(team, port); | |
8ff5105a JP |
1286 | return 0; |
1287 | } | |
1288 | ||
1289 | static int team_queue_id_option_get(struct team *team, | |
1290 | struct team_gsetter_ctx *ctx) | |
1291 | { | |
1292 | struct team_port *port = ctx->info->port; | |
1293 | ||
1294 | ctx->data.u32_val = port->queue_id; | |
a86fc6b7 JP |
1295 | return 0; |
1296 | } | |
1297 | ||
8ff5105a JP |
1298 | static int team_queue_id_option_set(struct team *team, |
1299 | struct team_gsetter_ctx *ctx) | |
1300 | { | |
1301 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1302 | u16 new_queue_id = ctx->data.u32_val; |
8ff5105a | 1303 | |
6c31ff36 | 1304 | if (port->queue_id == new_queue_id) |
8ff5105a | 1305 | return 0; |
6c31ff36 | 1306 | if (new_queue_id >= team->dev->real_num_tx_queues) |
8ff5105a | 1307 | return -EINVAL; |
6c31ff36 | 1308 | team_queue_override_port_change_queue_id(team, port, new_queue_id); |
8ff5105a JP |
1309 | return 0; |
1310 | } | |
1311 | ||
358b8382 | 1312 | static const struct team_option team_options[] = { |
3d249d4c JP |
1313 | { |
1314 | .name = "mode", | |
1315 | .type = TEAM_OPTION_TYPE_STRING, | |
1316 | .getter = team_mode_option_get, | |
1317 | .setter = team_mode_option_set, | |
1318 | }, | |
acd69962 JP |
1319 | { |
1320 | .name = "enabled", | |
1321 | .type = TEAM_OPTION_TYPE_BOOL, | |
1322 | .per_port = true, | |
1323 | .getter = team_port_en_option_get, | |
1324 | .setter = team_port_en_option_set, | |
1325 | }, | |
71472ec1 JP |
1326 | { |
1327 | .name = "user_linkup", | |
1328 | .type = TEAM_OPTION_TYPE_BOOL, | |
1329 | .per_port = true, | |
1330 | .getter = team_user_linkup_option_get, | |
1331 | .setter = team_user_linkup_option_set, | |
1332 | }, | |
1333 | { | |
1334 | .name = "user_linkup_enabled", | |
1335 | .type = TEAM_OPTION_TYPE_BOOL, | |
1336 | .per_port = true, | |
1337 | .getter = team_user_linkup_en_option_get, | |
1338 | .setter = team_user_linkup_en_option_set, | |
1339 | }, | |
a86fc6b7 JP |
1340 | { |
1341 | .name = "priority", | |
1342 | .type = TEAM_OPTION_TYPE_S32, | |
1343 | .per_port = true, | |
1344 | .getter = team_priority_option_get, | |
1345 | .setter = team_priority_option_set, | |
1346 | }, | |
8ff5105a JP |
1347 | { |
1348 | .name = "queue_id", | |
1349 | .type = TEAM_OPTION_TYPE_U32, | |
1350 | .per_port = true, | |
1351 | .getter = team_queue_id_option_get, | |
1352 | .setter = team_queue_id_option_set, | |
1353 | }, | |
3d249d4c JP |
1354 | }; |
1355 | ||
6c85f2bd JP |
1356 | static struct lock_class_key team_netdev_xmit_lock_key; |
1357 | static struct lock_class_key team_netdev_addr_lock_key; | |
b3c581d5 | 1358 | static struct lock_class_key team_tx_busylock_key; |
6c85f2bd JP |
1359 | |
1360 | static void team_set_lockdep_class_one(struct net_device *dev, | |
1361 | struct netdev_queue *txq, | |
1362 | void *unused) | |
1363 | { | |
1364 | lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); | |
1365 | } | |
1366 | ||
1367 | static void team_set_lockdep_class(struct net_device *dev) | |
1368 | { | |
1369 | lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); | |
1370 | netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); | |
b3c581d5 | 1371 | dev->qdisc_tx_busylock = &team_tx_busylock_key; |
6c85f2bd JP |
1372 | } |
1373 | ||
3d249d4c JP |
1374 | static int team_init(struct net_device *dev) |
1375 | { | |
1376 | struct team *team = netdev_priv(dev); | |
1377 | int i; | |
358b8382 | 1378 | int err; |
3d249d4c JP |
1379 | |
1380 | team->dev = dev; | |
61dc3461 | 1381 | mutex_init(&team->lock); |
d299cd51 | 1382 | team_set_no_mode(team); |
3d249d4c JP |
1383 | |
1384 | team->pcpu_stats = alloc_percpu(struct team_pcpu_stats); | |
1385 | if (!team->pcpu_stats) | |
1386 | return -ENOMEM; | |
1387 | ||
1388 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) | |
19a0b58e | 1389 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
3d249d4c | 1390 | INIT_LIST_HEAD(&team->port_list); |
8ff5105a JP |
1391 | err = team_queue_override_init(team); |
1392 | if (err) | |
1393 | goto err_team_queue_override_init; | |
3d249d4c JP |
1394 | |
1395 | team_adjust_ops(team); | |
1396 | ||
1397 | INIT_LIST_HEAD(&team->option_list); | |
80f7c668 | 1398 | INIT_LIST_HEAD(&team->option_inst_list); |
358b8382 JP |
1399 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
1400 | if (err) | |
1401 | goto err_options_register; | |
3d249d4c JP |
1402 | netif_carrier_off(dev); |
1403 | ||
6c85f2bd JP |
1404 | team_set_lockdep_class(dev); |
1405 | ||
3d249d4c | 1406 | return 0; |
358b8382 JP |
1407 | |
1408 | err_options_register: | |
8ff5105a JP |
1409 | team_queue_override_fini(team); |
1410 | err_team_queue_override_init: | |
358b8382 JP |
1411 | free_percpu(team->pcpu_stats); |
1412 | ||
1413 | return err; | |
3d249d4c JP |
1414 | } |
1415 | ||
1416 | static void team_uninit(struct net_device *dev) | |
1417 | { | |
1418 | struct team *team = netdev_priv(dev); | |
1419 | struct team_port *port; | |
1420 | struct team_port *tmp; | |
1421 | ||
61dc3461 | 1422 | mutex_lock(&team->lock); |
3d249d4c JP |
1423 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
1424 | team_port_del(team, port->dev); | |
1425 | ||
1426 | __team_change_mode(team, NULL); /* cleanup */ | |
1427 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); | |
8ff5105a | 1428 | team_queue_override_fini(team); |
61dc3461 | 1429 | mutex_unlock(&team->lock); |
3d249d4c JP |
1430 | } |
1431 | ||
1432 | static void team_destructor(struct net_device *dev) | |
1433 | { | |
1434 | struct team *team = netdev_priv(dev); | |
1435 | ||
1436 | free_percpu(team->pcpu_stats); | |
1437 | free_netdev(dev); | |
1438 | } | |
1439 | ||
1440 | static int team_open(struct net_device *dev) | |
1441 | { | |
3d249d4c JP |
1442 | return 0; |
1443 | } | |
1444 | ||
1445 | static int team_close(struct net_device *dev) | |
1446 | { | |
3d249d4c JP |
1447 | return 0; |
1448 | } | |
1449 | ||
1450 | /* | |
1451 | * note: already called with rcu_read_lock | |
1452 | */ | |
1453 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) | |
1454 | { | |
1455 | struct team *team = netdev_priv(dev); | |
8ff5105a | 1456 | bool tx_success; |
3d249d4c JP |
1457 | unsigned int len = skb->len; |
1458 | ||
8ff5105a JP |
1459 | tx_success = team_queue_override_transmit(team, skb); |
1460 | if (!tx_success) | |
1461 | tx_success = team->ops.transmit(team, skb); | |
3d249d4c JP |
1462 | if (tx_success) { |
1463 | struct team_pcpu_stats *pcpu_stats; | |
1464 | ||
1465 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
1466 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1467 | pcpu_stats->tx_packets++; | |
1468 | pcpu_stats->tx_bytes += len; | |
1469 | u64_stats_update_end(&pcpu_stats->syncp); | |
1470 | } else { | |
1471 | this_cpu_inc(team->pcpu_stats->tx_dropped); | |
1472 | } | |
1473 | ||
1474 | return NETDEV_TX_OK; | |
1475 | } | |
1476 | ||
6c85f2bd JP |
1477 | static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb) |
1478 | { | |
1479 | /* | |
1480 | * This helper function exists to help dev_pick_tx get the correct | |
1481 | * destination queue. Using a helper function skips a call to | |
1482 | * skb_tx_hash and will put the skbs in the queue we expect on their | |
1483 | * way down to the team driver. | |
1484 | */ | |
1485 | u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; | |
1486 | ||
1487 | /* | |
1488 | * Save the original txq to restore before passing to the driver | |
1489 | */ | |
1490 | qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; | |
1491 | ||
1492 | if (unlikely(txq >= dev->real_num_tx_queues)) { | |
1493 | do { | |
1494 | txq -= dev->real_num_tx_queues; | |
1495 | } while (txq >= dev->real_num_tx_queues); | |
1496 | } | |
1497 | return txq; | |
1498 | } | |
1499 | ||
3d249d4c JP |
1500 | static void team_change_rx_flags(struct net_device *dev, int change) |
1501 | { | |
1502 | struct team *team = netdev_priv(dev); | |
1503 | struct team_port *port; | |
1504 | int inc; | |
1505 | ||
1506 | rcu_read_lock(); | |
1507 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1508 | if (change & IFF_PROMISC) { | |
1509 | inc = dev->flags & IFF_PROMISC ? 1 : -1; | |
1510 | dev_set_promiscuity(port->dev, inc); | |
1511 | } | |
1512 | if (change & IFF_ALLMULTI) { | |
1513 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; | |
1514 | dev_set_allmulti(port->dev, inc); | |
1515 | } | |
1516 | } | |
1517 | rcu_read_unlock(); | |
1518 | } | |
1519 | ||
1520 | static void team_set_rx_mode(struct net_device *dev) | |
1521 | { | |
1522 | struct team *team = netdev_priv(dev); | |
1523 | struct team_port *port; | |
1524 | ||
1525 | rcu_read_lock(); | |
1526 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
72b27032 VY |
1527 | dev_uc_sync_multiple(port->dev, dev); |
1528 | dev_mc_sync_multiple(port->dev, dev); | |
3d249d4c JP |
1529 | } |
1530 | rcu_read_unlock(); | |
1531 | } | |
1532 | ||
1533 | static int team_set_mac_address(struct net_device *dev, void *p) | |
1534 | { | |
1d76efe1 | 1535 | struct sockaddr *addr = p; |
3d249d4c JP |
1536 | struct team *team = netdev_priv(dev); |
1537 | struct team_port *port; | |
3d249d4c | 1538 | |
1d76efe1 JP |
1539 | if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) |
1540 | return -EADDRNOTAVAIL; | |
1541 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
3d249d4c JP |
1542 | rcu_read_lock(); |
1543 | list_for_each_entry_rcu(port, &team->port_list, list) | |
1d76efe1 JP |
1544 | if (team->ops.port_change_dev_addr) |
1545 | team->ops.port_change_dev_addr(team, port); | |
3d249d4c JP |
1546 | rcu_read_unlock(); |
1547 | return 0; | |
1548 | } | |
1549 | ||
1550 | static int team_change_mtu(struct net_device *dev, int new_mtu) | |
1551 | { | |
1552 | struct team *team = netdev_priv(dev); | |
1553 | struct team_port *port; | |
1554 | int err; | |
1555 | ||
1556 | /* | |
1557 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1558 | * to traverse list in reverse under rcu_read_lock | |
1559 | */ | |
61dc3461 | 1560 | mutex_lock(&team->lock); |
3d249d4c JP |
1561 | list_for_each_entry(port, &team->port_list, list) { |
1562 | err = dev_set_mtu(port->dev, new_mtu); | |
1563 | if (err) { | |
1564 | netdev_err(dev, "Device %s failed to change mtu", | |
1565 | port->dev->name); | |
1566 | goto unwind; | |
1567 | } | |
1568 | } | |
61dc3461 | 1569 | mutex_unlock(&team->lock); |
3d249d4c JP |
1570 | |
1571 | dev->mtu = new_mtu; | |
1572 | ||
1573 | return 0; | |
1574 | ||
1575 | unwind: | |
1576 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1577 | dev_set_mtu(port->dev, dev->mtu); | |
61dc3461 | 1578 | mutex_unlock(&team->lock); |
3d249d4c JP |
1579 | |
1580 | return err; | |
1581 | } | |
1582 | ||
1583 | static struct rtnl_link_stats64 * | |
1584 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
1585 | { | |
1586 | struct team *team = netdev_priv(dev); | |
1587 | struct team_pcpu_stats *p; | |
1588 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; | |
1589 | u32 rx_dropped = 0, tx_dropped = 0; | |
1590 | unsigned int start; | |
1591 | int i; | |
1592 | ||
1593 | for_each_possible_cpu(i) { | |
1594 | p = per_cpu_ptr(team->pcpu_stats, i); | |
1595 | do { | |
1596 | start = u64_stats_fetch_begin_bh(&p->syncp); | |
1597 | rx_packets = p->rx_packets; | |
1598 | rx_bytes = p->rx_bytes; | |
1599 | rx_multicast = p->rx_multicast; | |
1600 | tx_packets = p->tx_packets; | |
1601 | tx_bytes = p->tx_bytes; | |
1602 | } while (u64_stats_fetch_retry_bh(&p->syncp, start)); | |
1603 | ||
1604 | stats->rx_packets += rx_packets; | |
1605 | stats->rx_bytes += rx_bytes; | |
1606 | stats->multicast += rx_multicast; | |
1607 | stats->tx_packets += tx_packets; | |
1608 | stats->tx_bytes += tx_bytes; | |
1609 | /* | |
1610 | * rx_dropped & tx_dropped are u32, updated | |
1611 | * without syncp protection. | |
1612 | */ | |
1613 | rx_dropped += p->rx_dropped; | |
1614 | tx_dropped += p->tx_dropped; | |
1615 | } | |
1616 | stats->rx_dropped = rx_dropped; | |
1617 | stats->tx_dropped = tx_dropped; | |
1618 | return stats; | |
1619 | } | |
1620 | ||
80d5c368 | 1621 | static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1622 | { |
1623 | struct team *team = netdev_priv(dev); | |
1624 | struct team_port *port; | |
87002b03 | 1625 | int err; |
3d249d4c | 1626 | |
87002b03 JP |
1627 | /* |
1628 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1629 | * to traverse list in reverse under rcu_read_lock | |
1630 | */ | |
1631 | mutex_lock(&team->lock); | |
1632 | list_for_each_entry(port, &team->port_list, list) { | |
80d5c368 | 1633 | err = vlan_vid_add(port->dev, proto, vid); |
87002b03 JP |
1634 | if (err) |
1635 | goto unwind; | |
3d249d4c | 1636 | } |
87002b03 | 1637 | mutex_unlock(&team->lock); |
8e586137 JP |
1638 | |
1639 | return 0; | |
87002b03 JP |
1640 | |
1641 | unwind: | |
1642 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
80d5c368 | 1643 | vlan_vid_del(port->dev, proto, vid); |
87002b03 JP |
1644 | mutex_unlock(&team->lock); |
1645 | ||
1646 | return err; | |
3d249d4c JP |
1647 | } |
1648 | ||
80d5c368 | 1649 | static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1650 | { |
1651 | struct team *team = netdev_priv(dev); | |
1652 | struct team_port *port; | |
1653 | ||
1654 | rcu_read_lock(); | |
87002b03 | 1655 | list_for_each_entry_rcu(port, &team->port_list, list) |
80d5c368 | 1656 | vlan_vid_del(port->dev, proto, vid); |
3d249d4c | 1657 | rcu_read_unlock(); |
8e586137 JP |
1658 | |
1659 | return 0; | |
3d249d4c JP |
1660 | } |
1661 | ||
bd2d0837 JP |
1662 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1663 | static void team_poll_controller(struct net_device *dev) | |
1664 | { | |
1665 | } | |
1666 | ||
1667 | static void __team_netpoll_cleanup(struct team *team) | |
1668 | { | |
1669 | struct team_port *port; | |
1670 | ||
1671 | list_for_each_entry(port, &team->port_list, list) | |
1672 | team_port_disable_netpoll(port); | |
1673 | } | |
1674 | ||
1675 | static void team_netpoll_cleanup(struct net_device *dev) | |
1676 | { | |
1677 | struct team *team = netdev_priv(dev); | |
1678 | ||
1679 | mutex_lock(&team->lock); | |
1680 | __team_netpoll_cleanup(team); | |
1681 | mutex_unlock(&team->lock); | |
1682 | } | |
1683 | ||
1684 | static int team_netpoll_setup(struct net_device *dev, | |
47be03a2 | 1685 | struct netpoll_info *npifo, gfp_t gfp) |
bd2d0837 JP |
1686 | { |
1687 | struct team *team = netdev_priv(dev); | |
1688 | struct team_port *port; | |
3324d024 | 1689 | int err = 0; |
bd2d0837 JP |
1690 | |
1691 | mutex_lock(&team->lock); | |
1692 | list_for_each_entry(port, &team->port_list, list) { | |
47be03a2 | 1693 | err = team_port_enable_netpoll(team, port, gfp); |
bd2d0837 JP |
1694 | if (err) { |
1695 | __team_netpoll_cleanup(team); | |
1696 | break; | |
1697 | } | |
1698 | } | |
1699 | mutex_unlock(&team->lock); | |
1700 | return err; | |
1701 | } | |
1702 | #endif | |
1703 | ||
3d249d4c JP |
1704 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev) |
1705 | { | |
1706 | struct team *team = netdev_priv(dev); | |
1707 | int err; | |
1708 | ||
61dc3461 | 1709 | mutex_lock(&team->lock); |
3d249d4c | 1710 | err = team_port_add(team, port_dev); |
61dc3461 | 1711 | mutex_unlock(&team->lock); |
3d249d4c JP |
1712 | return err; |
1713 | } | |
1714 | ||
1715 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) | |
1716 | { | |
1717 | struct team *team = netdev_priv(dev); | |
1718 | int err; | |
1719 | ||
61dc3461 | 1720 | mutex_lock(&team->lock); |
3d249d4c | 1721 | err = team_port_del(team, port_dev); |
61dc3461 | 1722 | mutex_unlock(&team->lock); |
3d249d4c JP |
1723 | return err; |
1724 | } | |
1725 | ||
234a8fd4 JP |
1726 | static netdev_features_t team_fix_features(struct net_device *dev, |
1727 | netdev_features_t features) | |
1728 | { | |
1729 | struct team_port *port; | |
1730 | struct team *team = netdev_priv(dev); | |
1731 | netdev_features_t mask; | |
1732 | ||
1733 | mask = features; | |
1734 | features &= ~NETIF_F_ONE_FOR_ALL; | |
1735 | features |= NETIF_F_ALL_FOR_ALL; | |
1736 | ||
1737 | rcu_read_lock(); | |
1738 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1739 | features = netdev_increment_features(features, | |
1740 | port->dev->features, | |
1741 | mask); | |
1742 | } | |
1743 | rcu_read_unlock(); | |
1744 | return features; | |
1745 | } | |
1746 | ||
4cafe373 FL |
1747 | static int team_change_carrier(struct net_device *dev, bool new_carrier) |
1748 | { | |
e185483e FL |
1749 | struct team *team = netdev_priv(dev); |
1750 | ||
1751 | team->user_carrier_enabled = true; | |
1752 | ||
4cafe373 FL |
1753 | if (new_carrier) |
1754 | netif_carrier_on(dev); | |
1755 | else | |
1756 | netif_carrier_off(dev); | |
1757 | return 0; | |
1758 | } | |
1759 | ||
3d249d4c JP |
1760 | static const struct net_device_ops team_netdev_ops = { |
1761 | .ndo_init = team_init, | |
1762 | .ndo_uninit = team_uninit, | |
1763 | .ndo_open = team_open, | |
1764 | .ndo_stop = team_close, | |
1765 | .ndo_start_xmit = team_xmit, | |
6c85f2bd | 1766 | .ndo_select_queue = team_select_queue, |
3d249d4c JP |
1767 | .ndo_change_rx_flags = team_change_rx_flags, |
1768 | .ndo_set_rx_mode = team_set_rx_mode, | |
1769 | .ndo_set_mac_address = team_set_mac_address, | |
1770 | .ndo_change_mtu = team_change_mtu, | |
1771 | .ndo_get_stats64 = team_get_stats64, | |
1772 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, | |
1773 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, | |
bd2d0837 JP |
1774 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1775 | .ndo_poll_controller = team_poll_controller, | |
1776 | .ndo_netpoll_setup = team_netpoll_setup, | |
1777 | .ndo_netpoll_cleanup = team_netpoll_cleanup, | |
1778 | #endif | |
3d249d4c JP |
1779 | .ndo_add_slave = team_add_slave, |
1780 | .ndo_del_slave = team_del_slave, | |
234a8fd4 | 1781 | .ndo_fix_features = team_fix_features, |
4cafe373 | 1782 | .ndo_change_carrier = team_change_carrier, |
3d249d4c JP |
1783 | }; |
1784 | ||
7f51c587 FL |
1785 | /*********************** |
1786 | * ethtool interface | |
1787 | ***********************/ | |
1788 | ||
1789 | static void team_ethtool_get_drvinfo(struct net_device *dev, | |
1790 | struct ethtool_drvinfo *drvinfo) | |
1791 | { | |
3066af58 FL |
1792 | strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
1793 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
7f51c587 FL |
1794 | } |
1795 | ||
1796 | static const struct ethtool_ops team_ethtool_ops = { | |
1797 | .get_drvinfo = team_ethtool_get_drvinfo, | |
1798 | .get_link = ethtool_op_get_link, | |
1799 | }; | |
3d249d4c JP |
1800 | |
1801 | /*********************** | |
1802 | * rt netlink interface | |
1803 | ***********************/ | |
1804 | ||
1d76efe1 JP |
1805 | static void team_setup_by_port(struct net_device *dev, |
1806 | struct net_device *port_dev) | |
1807 | { | |
1808 | dev->header_ops = port_dev->header_ops; | |
1809 | dev->type = port_dev->type; | |
1810 | dev->hard_header_len = port_dev->hard_header_len; | |
1811 | dev->addr_len = port_dev->addr_len; | |
1812 | dev->mtu = port_dev->mtu; | |
1813 | memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); | |
1814 | memcpy(dev->dev_addr, port_dev->dev_addr, port_dev->addr_len); | |
1d76efe1 JP |
1815 | } |
1816 | ||
1817 | static int team_dev_type_check_change(struct net_device *dev, | |
1818 | struct net_device *port_dev) | |
1819 | { | |
1820 | struct team *team = netdev_priv(dev); | |
1821 | char *portname = port_dev->name; | |
1822 | int err; | |
1823 | ||
1824 | if (dev->type == port_dev->type) | |
1825 | return 0; | |
1826 | if (!list_empty(&team->port_list)) { | |
1827 | netdev_err(dev, "Device %s is of different type\n", portname); | |
1828 | return -EBUSY; | |
1829 | } | |
1830 | err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); | |
1831 | err = notifier_to_errno(err); | |
1832 | if (err) { | |
1833 | netdev_err(dev, "Refused to change device type\n"); | |
1834 | return err; | |
1835 | } | |
1836 | dev_uc_flush(dev); | |
1837 | dev_mc_flush(dev); | |
1838 | team_setup_by_port(dev, port_dev); | |
1839 | call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); | |
1840 | return 0; | |
1841 | } | |
1842 | ||
3d249d4c JP |
1843 | static void team_setup(struct net_device *dev) |
1844 | { | |
1845 | ether_setup(dev); | |
1846 | ||
1847 | dev->netdev_ops = &team_netdev_ops; | |
7f51c587 | 1848 | dev->ethtool_ops = &team_ethtool_ops; |
3d249d4c JP |
1849 | dev->destructor = team_destructor; |
1850 | dev->tx_queue_len = 0; | |
1851 | dev->flags |= IFF_MULTICAST; | |
1852 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); | |
1853 | ||
1854 | /* | |
1855 | * Indicate we support unicast address filtering. That way core won't | |
1856 | * bring us to promisc mode in case a unicast addr is added. | |
1857 | * Let this up to underlay drivers. | |
1858 | */ | |
5a1d1c8c | 1859 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
3d249d4c JP |
1860 | |
1861 | dev->features |= NETIF_F_LLTX; | |
1862 | dev->features |= NETIF_F_GRO; | |
3ed71471 | 1863 | dev->hw_features = TEAM_VLAN_FEATURES | |
f646968f PM |
1864 | NETIF_F_HW_VLAN_CTAG_TX | |
1865 | NETIF_F_HW_VLAN_CTAG_RX | | |
1866 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
3d249d4c | 1867 | |
3ed71471 | 1868 | dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM); |
3d249d4c JP |
1869 | dev->features |= dev->hw_features; |
1870 | } | |
1871 | ||
1872 | static int team_newlink(struct net *src_net, struct net_device *dev, | |
1873 | struct nlattr *tb[], struct nlattr *data[]) | |
1874 | { | |
1875 | int err; | |
1876 | ||
1877 | if (tb[IFLA_ADDRESS] == NULL) | |
7ce5d222 | 1878 | eth_hw_addr_random(dev); |
3d249d4c JP |
1879 | |
1880 | err = register_netdevice(dev); | |
1881 | if (err) | |
1882 | return err; | |
1883 | ||
1884 | return 0; | |
1885 | } | |
1886 | ||
1887 | static int team_validate(struct nlattr *tb[], struct nlattr *data[]) | |
1888 | { | |
1889 | if (tb[IFLA_ADDRESS]) { | |
1890 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
1891 | return -EINVAL; | |
1892 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
1893 | return -EADDRNOTAVAIL; | |
1894 | } | |
1895 | return 0; | |
1896 | } | |
1897 | ||
6c85f2bd JP |
1898 | static unsigned int team_get_num_tx_queues(void) |
1899 | { | |
1900 | return TEAM_DEFAULT_NUM_TX_QUEUES; | |
1901 | } | |
1902 | ||
1903 | static unsigned int team_get_num_rx_queues(void) | |
1904 | { | |
1905 | return TEAM_DEFAULT_NUM_RX_QUEUES; | |
1906 | } | |
1907 | ||
3d249d4c | 1908 | static struct rtnl_link_ops team_link_ops __read_mostly = { |
6c85f2bd JP |
1909 | .kind = DRV_NAME, |
1910 | .priv_size = sizeof(struct team), | |
1911 | .setup = team_setup, | |
1912 | .newlink = team_newlink, | |
1913 | .validate = team_validate, | |
1914 | .get_num_tx_queues = team_get_num_tx_queues, | |
1915 | .get_num_rx_queues = team_get_num_rx_queues, | |
3d249d4c JP |
1916 | }; |
1917 | ||
1918 | ||
1919 | /*********************************** | |
1920 | * Generic netlink custom interface | |
1921 | ***********************************/ | |
1922 | ||
1923 | static struct genl_family team_nl_family = { | |
1924 | .id = GENL_ID_GENERATE, | |
1925 | .name = TEAM_GENL_NAME, | |
1926 | .version = TEAM_GENL_VERSION, | |
1927 | .maxattr = TEAM_ATTR_MAX, | |
1928 | .netnsok = true, | |
1929 | }; | |
1930 | ||
1931 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { | |
1932 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, | |
1933 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, | |
1934 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, | |
1935 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, | |
1936 | }; | |
1937 | ||
1938 | static const struct nla_policy | |
1939 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { | |
1940 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, | |
1941 | [TEAM_ATTR_OPTION_NAME] = { | |
1942 | .type = NLA_STRING, | |
1943 | .len = TEAM_STRING_MAX_LEN, | |
1944 | }, | |
1945 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, | |
1946 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, | |
2615598f | 1947 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
3d249d4c JP |
1948 | }; |
1949 | ||
1950 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) | |
1951 | { | |
1952 | struct sk_buff *msg; | |
1953 | void *hdr; | |
1954 | int err; | |
1955 | ||
58050fce | 1956 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
1957 | if (!msg) |
1958 | return -ENOMEM; | |
1959 | ||
15e47304 | 1960 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, |
3d249d4c | 1961 | &team_nl_family, 0, TEAM_CMD_NOOP); |
a326e6dd WY |
1962 | if (!hdr) { |
1963 | err = -EMSGSIZE; | |
3d249d4c JP |
1964 | goto err_msg_put; |
1965 | } | |
1966 | ||
1967 | genlmsg_end(msg, hdr); | |
1968 | ||
15e47304 | 1969 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); |
3d249d4c JP |
1970 | |
1971 | err_msg_put: | |
1972 | nlmsg_free(msg); | |
1973 | ||
1974 | return err; | |
1975 | } | |
1976 | ||
1977 | /* | |
1978 | * Netlink cmd functions should be locked by following two functions. | |
8c0713a5 | 1979 | * Since dev gets held here, that ensures dev won't disappear in between. |
3d249d4c JP |
1980 | */ |
1981 | static struct team *team_nl_team_get(struct genl_info *info) | |
1982 | { | |
1983 | struct net *net = genl_info_net(info); | |
1984 | int ifindex; | |
1985 | struct net_device *dev; | |
1986 | struct team *team; | |
1987 | ||
1988 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) | |
1989 | return NULL; | |
1990 | ||
1991 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); | |
8c0713a5 | 1992 | dev = dev_get_by_index(net, ifindex); |
3d249d4c | 1993 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
8c0713a5 JP |
1994 | if (dev) |
1995 | dev_put(dev); | |
3d249d4c JP |
1996 | return NULL; |
1997 | } | |
1998 | ||
1999 | team = netdev_priv(dev); | |
61dc3461 | 2000 | mutex_lock(&team->lock); |
3d249d4c JP |
2001 | return team; |
2002 | } | |
2003 | ||
2004 | static void team_nl_team_put(struct team *team) | |
2005 | { | |
61dc3461 | 2006 | mutex_unlock(&team->lock); |
8c0713a5 | 2007 | dev_put(team->dev); |
3d249d4c JP |
2008 | } |
2009 | ||
9b00cf2d | 2010 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
15e47304 | 2011 | struct team *team, u32 portid); |
9b00cf2d | 2012 | |
15e47304 | 2013 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) |
9b00cf2d | 2014 | { |
15e47304 | 2015 | return genlmsg_unicast(dev_net(team->dev), skb, portid); |
9b00cf2d JP |
2016 | } |
2017 | ||
01048d9a JP |
2018 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
2019 | struct team_option_inst *opt_inst) | |
2020 | { | |
2021 | struct nlattr *option_item; | |
2022 | struct team_option *option = opt_inst->option; | |
9b00cf2d | 2023 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
01048d9a JP |
2024 | struct team_gsetter_ctx ctx; |
2025 | int err; | |
2026 | ||
9b00cf2d JP |
2027 | ctx.info = opt_inst_info; |
2028 | err = team_option_get(team, opt_inst, &ctx); | |
2029 | if (err) | |
2030 | return err; | |
2031 | ||
01048d9a JP |
2032 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
2033 | if (!option_item) | |
9b00cf2d | 2034 | return -EMSGSIZE; |
01048d9a | 2035 | |
9b00cf2d JP |
2036 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
2037 | goto nest_cancel; | |
01048d9a JP |
2038 | if (opt_inst_info->port && |
2039 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, | |
2040 | opt_inst_info->port->dev->ifindex)) | |
9b00cf2d | 2041 | goto nest_cancel; |
01048d9a JP |
2042 | if (opt_inst->option->array_size && |
2043 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, | |
2044 | opt_inst_info->array_index)) | |
9b00cf2d | 2045 | goto nest_cancel; |
01048d9a JP |
2046 | |
2047 | switch (option->type) { | |
2048 | case TEAM_OPTION_TYPE_U32: | |
2049 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) | |
9b00cf2d | 2050 | goto nest_cancel; |
01048d9a | 2051 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
9b00cf2d | 2052 | goto nest_cancel; |
01048d9a JP |
2053 | break; |
2054 | case TEAM_OPTION_TYPE_STRING: | |
2055 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) | |
9b00cf2d | 2056 | goto nest_cancel; |
01048d9a JP |
2057 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
2058 | ctx.data.str_val)) | |
9b00cf2d | 2059 | goto nest_cancel; |
01048d9a JP |
2060 | break; |
2061 | case TEAM_OPTION_TYPE_BINARY: | |
2062 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) | |
9b00cf2d | 2063 | goto nest_cancel; |
01048d9a JP |
2064 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
2065 | ctx.data.bin_val.ptr)) | |
9b00cf2d | 2066 | goto nest_cancel; |
01048d9a JP |
2067 | break; |
2068 | case TEAM_OPTION_TYPE_BOOL: | |
2069 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) | |
9b00cf2d | 2070 | goto nest_cancel; |
01048d9a JP |
2071 | if (ctx.data.bool_val && |
2072 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) | |
9b00cf2d | 2073 | goto nest_cancel; |
01048d9a | 2074 | break; |
69821638 JP |
2075 | case TEAM_OPTION_TYPE_S32: |
2076 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) | |
2077 | goto nest_cancel; | |
2078 | if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) | |
2079 | goto nest_cancel; | |
2080 | break; | |
01048d9a JP |
2081 | default: |
2082 | BUG(); | |
2083 | } | |
9b00cf2d JP |
2084 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
2085 | goto nest_cancel; | |
2086 | if (opt_inst->changed) { | |
2087 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) | |
2088 | goto nest_cancel; | |
2089 | opt_inst->changed = false; | |
2090 | } | |
01048d9a JP |
2091 | nla_nest_end(skb, option_item); |
2092 | return 0; | |
2093 | ||
9b00cf2d JP |
2094 | nest_cancel: |
2095 | nla_nest_cancel(skb, option_item); | |
2096 | return -EMSGSIZE; | |
2097 | } | |
2098 | ||
2099 | static int __send_and_alloc_skb(struct sk_buff **pskb, | |
15e47304 | 2100 | struct team *team, u32 portid, |
9b00cf2d JP |
2101 | team_nl_send_func_t *send_func) |
2102 | { | |
2103 | int err; | |
2104 | ||
2105 | if (*pskb) { | |
15e47304 | 2106 | err = send_func(*pskb, team, portid); |
9b00cf2d JP |
2107 | if (err) |
2108 | return err; | |
2109 | } | |
58050fce | 2110 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9b00cf2d JP |
2111 | if (!*pskb) |
2112 | return -ENOMEM; | |
2113 | return 0; | |
01048d9a JP |
2114 | } |
2115 | ||
15e47304 | 2116 | static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, |
9b00cf2d | 2117 | int flags, team_nl_send_func_t *send_func, |
01048d9a | 2118 | struct list_head *sel_opt_inst_list) |
3d249d4c JP |
2119 | { |
2120 | struct nlattr *option_list; | |
9b00cf2d | 2121 | struct nlmsghdr *nlh; |
3d249d4c | 2122 | void *hdr; |
80f7c668 JP |
2123 | struct team_option_inst *opt_inst; |
2124 | int err; | |
9b00cf2d JP |
2125 | struct sk_buff *skb = NULL; |
2126 | bool incomplete; | |
2127 | int i; | |
3d249d4c | 2128 | |
9b00cf2d JP |
2129 | opt_inst = list_first_entry(sel_opt_inst_list, |
2130 | struct team_option_inst, tmp_list); | |
2131 | ||
2132 | start_again: | |
15e47304 | 2133 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2134 | if (err) |
2135 | return err; | |
2136 | ||
15e47304 | 2137 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
3d249d4c | 2138 | TEAM_CMD_OPTIONS_GET); |
a326e6dd WY |
2139 | if (!hdr) |
2140 | return -EMSGSIZE; | |
3d249d4c | 2141 | |
86ebb02d DM |
2142 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2143 | goto nla_put_failure; | |
3d249d4c JP |
2144 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
2145 | if (!option_list) | |
75db986a | 2146 | goto nla_put_failure; |
3d249d4c | 2147 | |
9b00cf2d JP |
2148 | i = 0; |
2149 | incomplete = false; | |
2150 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { | |
01048d9a | 2151 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
9b00cf2d JP |
2152 | if (err) { |
2153 | if (err == -EMSGSIZE) { | |
2154 | if (!i) | |
2155 | goto errout; | |
2156 | incomplete = true; | |
2157 | break; | |
2158 | } | |
01048d9a | 2159 | goto errout; |
9b00cf2d JP |
2160 | } |
2161 | i++; | |
3d249d4c JP |
2162 | } |
2163 | ||
2164 | nla_nest_end(skb, option_list); | |
9b00cf2d JP |
2165 | genlmsg_end(skb, hdr); |
2166 | if (incomplete) | |
2167 | goto start_again; | |
2168 | ||
2169 | send_done: | |
15e47304 | 2170 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
9b00cf2d | 2171 | if (!nlh) { |
15e47304 | 2172 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2173 | if (err) |
2174 | goto errout; | |
2175 | goto send_done; | |
2176 | } | |
2177 | ||
15e47304 | 2178 | return send_func(skb, team, portid); |
3d249d4c JP |
2179 | |
2180 | nla_put_failure: | |
80f7c668 JP |
2181 | err = -EMSGSIZE; |
2182 | errout: | |
3d249d4c | 2183 | genlmsg_cancel(skb, hdr); |
9b00cf2d | 2184 | nlmsg_free(skb); |
80f7c668 | 2185 | return err; |
3d249d4c JP |
2186 | } |
2187 | ||
3d249d4c JP |
2188 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
2189 | { | |
2190 | struct team *team; | |
9b00cf2d | 2191 | struct team_option_inst *opt_inst; |
3d249d4c | 2192 | int err; |
9b00cf2d | 2193 | LIST_HEAD(sel_opt_inst_list); |
3d249d4c JP |
2194 | |
2195 | team = team_nl_team_get(info); | |
2196 | if (!team) | |
2197 | return -EINVAL; | |
2198 | ||
9b00cf2d JP |
2199 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
2200 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
15e47304 | 2201 | err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, |
9b00cf2d JP |
2202 | NLM_F_ACK, team_nl_send_unicast, |
2203 | &sel_opt_inst_list); | |
3d249d4c JP |
2204 | |
2205 | team_nl_team_put(team); | |
2206 | ||
2207 | return err; | |
2208 | } | |
2209 | ||
2fcdb2c9 JP |
2210 | static int team_nl_send_event_options_get(struct team *team, |
2211 | struct list_head *sel_opt_inst_list); | |
2212 | ||
3d249d4c JP |
2213 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
2214 | { | |
2215 | struct team *team; | |
2216 | int err = 0; | |
2217 | int i; | |
2218 | struct nlattr *nl_option; | |
2fcdb2c9 | 2219 | LIST_HEAD(opt_inst_list); |
3d249d4c JP |
2220 | |
2221 | team = team_nl_team_get(info); | |
2222 | if (!team) | |
2223 | return -EINVAL; | |
2224 | ||
2225 | err = -EINVAL; | |
2226 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { | |
2227 | err = -EINVAL; | |
2228 | goto team_put; | |
2229 | } | |
2230 | ||
2231 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { | |
80f7c668 | 2232 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
b1303326 | 2233 | struct nlattr *attr; |
14f066ba | 2234 | struct nlattr *attr_data; |
3d249d4c | 2235 | enum team_option_type opt_type; |
80f7c668 | 2236 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
b1303326 JP |
2237 | u32 opt_array_index = 0; |
2238 | bool opt_is_array = false; | |
80f7c668 | 2239 | struct team_option_inst *opt_inst; |
3d249d4c JP |
2240 | char *opt_name; |
2241 | bool opt_found = false; | |
2242 | ||
2243 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { | |
2244 | err = -EINVAL; | |
2245 | goto team_put; | |
2246 | } | |
80f7c668 | 2247 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
3d249d4c JP |
2248 | nl_option, team_nl_option_policy); |
2249 | if (err) | |
2250 | goto team_put; | |
80f7c668 | 2251 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
14f066ba | 2252 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
3d249d4c JP |
2253 | err = -EINVAL; |
2254 | goto team_put; | |
2255 | } | |
80f7c668 | 2256 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
3d249d4c JP |
2257 | case NLA_U32: |
2258 | opt_type = TEAM_OPTION_TYPE_U32; | |
2259 | break; | |
2260 | case NLA_STRING: | |
2261 | opt_type = TEAM_OPTION_TYPE_STRING; | |
2262 | break; | |
2615598f JP |
2263 | case NLA_BINARY: |
2264 | opt_type = TEAM_OPTION_TYPE_BINARY; | |
2265 | break; | |
14f066ba JP |
2266 | case NLA_FLAG: |
2267 | opt_type = TEAM_OPTION_TYPE_BOOL; | |
2268 | break; | |
69821638 JP |
2269 | case NLA_S32: |
2270 | opt_type = TEAM_OPTION_TYPE_S32; | |
2271 | break; | |
3d249d4c JP |
2272 | default: |
2273 | goto team_put; | |
2274 | } | |
2275 | ||
14f066ba JP |
2276 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
2277 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { | |
2278 | err = -EINVAL; | |
2279 | goto team_put; | |
2280 | } | |
2281 | ||
80f7c668 | 2282 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
b1303326 JP |
2283 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
2284 | if (attr) | |
2285 | opt_port_ifindex = nla_get_u32(attr); | |
2286 | ||
2287 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; | |
2288 | if (attr) { | |
2289 | opt_is_array = true; | |
2290 | opt_array_index = nla_get_u32(attr); | |
2291 | } | |
80f7c668 JP |
2292 | |
2293 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
2294 | struct team_option *option = opt_inst->option; | |
80f7c668 | 2295 | struct team_gsetter_ctx ctx; |
85d59a87 | 2296 | struct team_option_inst_info *opt_inst_info; |
80f7c668 | 2297 | int tmp_ifindex; |
3d249d4c | 2298 | |
85d59a87 JP |
2299 | opt_inst_info = &opt_inst->info; |
2300 | tmp_ifindex = opt_inst_info->port ? | |
2301 | opt_inst_info->port->dev->ifindex : 0; | |
3d249d4c | 2302 | if (option->type != opt_type || |
80f7c668 | 2303 | strcmp(option->name, opt_name) || |
b1303326 JP |
2304 | tmp_ifindex != opt_port_ifindex || |
2305 | (option->array_size && !opt_is_array) || | |
85d59a87 | 2306 | opt_inst_info->array_index != opt_array_index) |
3d249d4c JP |
2307 | continue; |
2308 | opt_found = true; | |
85d59a87 | 2309 | ctx.info = opt_inst_info; |
3d249d4c JP |
2310 | switch (opt_type) { |
2311 | case TEAM_OPTION_TYPE_U32: | |
14f066ba | 2312 | ctx.data.u32_val = nla_get_u32(attr_data); |
3d249d4c JP |
2313 | break; |
2314 | case TEAM_OPTION_TYPE_STRING: | |
14f066ba | 2315 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
2615598f JP |
2316 | err = -EINVAL; |
2317 | goto team_put; | |
2318 | } | |
14f066ba | 2319 | ctx.data.str_val = nla_data(attr_data); |
3d249d4c | 2320 | break; |
2615598f | 2321 | case TEAM_OPTION_TYPE_BINARY: |
14f066ba JP |
2322 | ctx.data.bin_val.len = nla_len(attr_data); |
2323 | ctx.data.bin_val.ptr = nla_data(attr_data); | |
2324 | break; | |
2325 | case TEAM_OPTION_TYPE_BOOL: | |
2326 | ctx.data.bool_val = attr_data ? true : false; | |
2615598f | 2327 | break; |
69821638 JP |
2328 | case TEAM_OPTION_TYPE_S32: |
2329 | ctx.data.s32_val = nla_get_s32(attr_data); | |
2330 | break; | |
3d249d4c JP |
2331 | default: |
2332 | BUG(); | |
2333 | } | |
80f7c668 | 2334 | err = team_option_set(team, opt_inst, &ctx); |
3d249d4c JP |
2335 | if (err) |
2336 | goto team_put; | |
2fcdb2c9 JP |
2337 | opt_inst->changed = true; |
2338 | list_add(&opt_inst->tmp_list, &opt_inst_list); | |
3d249d4c JP |
2339 | } |
2340 | if (!opt_found) { | |
2341 | err = -ENOENT; | |
2342 | goto team_put; | |
2343 | } | |
2344 | } | |
2345 | ||
2fcdb2c9 JP |
2346 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
2347 | ||
3d249d4c JP |
2348 | team_put: |
2349 | team_nl_team_put(team); | |
2350 | ||
2351 | return err; | |
2352 | } | |
2353 | ||
d90f889e JP |
2354 | static int team_nl_fill_one_port_get(struct sk_buff *skb, |
2355 | struct team_port *port) | |
2356 | { | |
2357 | struct nlattr *port_item; | |
2358 | ||
2359 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); | |
2360 | if (!port_item) | |
2361 | goto nest_cancel; | |
2362 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) | |
2363 | goto nest_cancel; | |
2364 | if (port->changed) { | |
2365 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) | |
2366 | goto nest_cancel; | |
2367 | port->changed = false; | |
2368 | } | |
2369 | if ((port->removed && | |
2370 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || | |
2371 | (port->state.linkup && | |
2372 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || | |
2373 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || | |
2374 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) | |
2375 | goto nest_cancel; | |
2376 | nla_nest_end(skb, port_item); | |
2377 | return 0; | |
2378 | ||
2379 | nest_cancel: | |
2380 | nla_nest_cancel(skb, port_item); | |
2381 | return -EMSGSIZE; | |
2382 | } | |
2383 | ||
2384 | static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, | |
2385 | int flags, team_nl_send_func_t *send_func, | |
2386 | struct team_port *one_port) | |
3d249d4c JP |
2387 | { |
2388 | struct nlattr *port_list; | |
d90f889e | 2389 | struct nlmsghdr *nlh; |
3d249d4c JP |
2390 | void *hdr; |
2391 | struct team_port *port; | |
d90f889e JP |
2392 | int err; |
2393 | struct sk_buff *skb = NULL; | |
2394 | bool incomplete; | |
2395 | int i; | |
3d249d4c | 2396 | |
3f3e7ce4 JP |
2397 | port = list_first_entry_or_null(&team->port_list, |
2398 | struct team_port, list); | |
d90f889e JP |
2399 | |
2400 | start_again: | |
2401 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2402 | if (err) | |
2403 | return err; | |
2404 | ||
2405 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, | |
3d249d4c | 2406 | TEAM_CMD_PORT_LIST_GET); |
a326e6dd WY |
2407 | if (!hdr) |
2408 | return -EMSGSIZE; | |
3d249d4c | 2409 | |
86ebb02d DM |
2410 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2411 | goto nla_put_failure; | |
3d249d4c JP |
2412 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
2413 | if (!port_list) | |
3221c646 | 2414 | goto nla_put_failure; |
3d249d4c | 2415 | |
d90f889e JP |
2416 | i = 0; |
2417 | incomplete = false; | |
3d249d4c | 2418 | |
d90f889e JP |
2419 | /* If one port is selected, called wants to send port list containing |
2420 | * only this port. Otherwise go through all listed ports and send all | |
2421 | */ | |
2422 | if (one_port) { | |
2423 | err = team_nl_fill_one_port_get(skb, one_port); | |
2424 | if (err) | |
2425 | goto errout; | |
3f3e7ce4 JP |
2426 | } else if (port) { |
2427 | list_for_each_entry_from(port, &team->port_list, list) { | |
d90f889e JP |
2428 | err = team_nl_fill_one_port_get(skb, port); |
2429 | if (err) { | |
2430 | if (err == -EMSGSIZE) { | |
2431 | if (!i) | |
2432 | goto errout; | |
2433 | incomplete = true; | |
2434 | break; | |
2435 | } | |
2436 | goto errout; | |
2437 | } | |
2438 | i++; | |
b82b9183 | 2439 | } |
3d249d4c JP |
2440 | } |
2441 | ||
2442 | nla_nest_end(skb, port_list); | |
d90f889e JP |
2443 | genlmsg_end(skb, hdr); |
2444 | if (incomplete) | |
2445 | goto start_again; | |
2446 | ||
2447 | send_done: | |
2448 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2449 | if (!nlh) { | |
2450 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2451 | if (err) | |
2452 | goto errout; | |
2453 | goto send_done; | |
2454 | } | |
2455 | ||
2456 | return send_func(skb, team, portid); | |
3d249d4c JP |
2457 | |
2458 | nla_put_failure: | |
d90f889e JP |
2459 | err = -EMSGSIZE; |
2460 | errout: | |
3d249d4c | 2461 | genlmsg_cancel(skb, hdr); |
d90f889e JP |
2462 | nlmsg_free(skb); |
2463 | return err; | |
3d249d4c JP |
2464 | } |
2465 | ||
2466 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, | |
2467 | struct genl_info *info) | |
2468 | { | |
2469 | struct team *team; | |
2470 | int err; | |
2471 | ||
2472 | team = team_nl_team_get(info); | |
2473 | if (!team) | |
2474 | return -EINVAL; | |
2475 | ||
d90f889e JP |
2476 | err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, |
2477 | NLM_F_ACK, team_nl_send_unicast, NULL); | |
3d249d4c JP |
2478 | |
2479 | team_nl_team_put(team); | |
2480 | ||
2481 | return err; | |
2482 | } | |
2483 | ||
2484 | static struct genl_ops team_nl_ops[] = { | |
2485 | { | |
2486 | .cmd = TEAM_CMD_NOOP, | |
2487 | .doit = team_nl_cmd_noop, | |
2488 | .policy = team_nl_policy, | |
2489 | }, | |
2490 | { | |
2491 | .cmd = TEAM_CMD_OPTIONS_SET, | |
2492 | .doit = team_nl_cmd_options_set, | |
2493 | .policy = team_nl_policy, | |
2494 | .flags = GENL_ADMIN_PERM, | |
2495 | }, | |
2496 | { | |
2497 | .cmd = TEAM_CMD_OPTIONS_GET, | |
2498 | .doit = team_nl_cmd_options_get, | |
2499 | .policy = team_nl_policy, | |
2500 | .flags = GENL_ADMIN_PERM, | |
2501 | }, | |
2502 | { | |
2503 | .cmd = TEAM_CMD_PORT_LIST_GET, | |
2504 | .doit = team_nl_cmd_port_list_get, | |
2505 | .policy = team_nl_policy, | |
2506 | .flags = GENL_ADMIN_PERM, | |
2507 | }, | |
2508 | }; | |
2509 | ||
2510 | static struct genl_multicast_group team_change_event_mcgrp = { | |
2511 | .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, | |
2512 | }; | |
2513 | ||
9b00cf2d | 2514 | static int team_nl_send_multicast(struct sk_buff *skb, |
15e47304 | 2515 | struct team *team, u32 portid) |
9b00cf2d JP |
2516 | { |
2517 | return genlmsg_multicast_netns(dev_net(team->dev), skb, 0, | |
2518 | team_change_event_mcgrp.id, GFP_KERNEL); | |
2519 | } | |
2520 | ||
01048d9a JP |
2521 | static int team_nl_send_event_options_get(struct team *team, |
2522 | struct list_head *sel_opt_inst_list) | |
3d249d4c | 2523 | { |
9b00cf2d JP |
2524 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
2525 | sel_opt_inst_list); | |
3d249d4c JP |
2526 | } |
2527 | ||
d90f889e JP |
2528 | static int team_nl_send_event_port_get(struct team *team, |
2529 | struct team_port *port) | |
3d249d4c | 2530 | { |
d90f889e JP |
2531 | return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, |
2532 | port); | |
3d249d4c JP |
2533 | } |
2534 | ||
2535 | static int team_nl_init(void) | |
2536 | { | |
2537 | int err; | |
2538 | ||
2539 | err = genl_register_family_with_ops(&team_nl_family, team_nl_ops, | |
2540 | ARRAY_SIZE(team_nl_ops)); | |
2541 | if (err) | |
2542 | return err; | |
2543 | ||
2544 | err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp); | |
2545 | if (err) | |
2546 | goto err_change_event_grp_reg; | |
2547 | ||
2548 | return 0; | |
2549 | ||
2550 | err_change_event_grp_reg: | |
2551 | genl_unregister_family(&team_nl_family); | |
2552 | ||
2553 | return err; | |
2554 | } | |
2555 | ||
2556 | static void team_nl_fini(void) | |
2557 | { | |
2558 | genl_unregister_family(&team_nl_family); | |
2559 | } | |
2560 | ||
2561 | ||
2562 | /****************** | |
2563 | * Change checkers | |
2564 | ******************/ | |
2565 | ||
b82b9183 | 2566 | static void __team_options_change_check(struct team *team) |
3d249d4c JP |
2567 | { |
2568 | int err; | |
01048d9a JP |
2569 | struct team_option_inst *opt_inst; |
2570 | LIST_HEAD(sel_opt_inst_list); | |
3d249d4c | 2571 | |
01048d9a JP |
2572 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
2573 | if (opt_inst->changed) | |
2574 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
2575 | } | |
2576 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); | |
0c7517e9 | 2577 | if (err && err != -ESRCH) |
9b00cf2d JP |
2578 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
2579 | err); | |
3d249d4c JP |
2580 | } |
2581 | ||
2582 | /* rtnl lock is held */ | |
10f3f51d JP |
2583 | |
2584 | static void __team_port_change_send(struct team_port *port, bool linkup) | |
3d249d4c JP |
2585 | { |
2586 | int err; | |
2587 | ||
b82b9183 | 2588 | port->changed = true; |
71472ec1 JP |
2589 | port->state.linkup = linkup; |
2590 | team_refresh_port_linkup(port); | |
3d249d4c JP |
2591 | if (linkup) { |
2592 | struct ethtool_cmd ecmd; | |
2593 | ||
2594 | err = __ethtool_get_settings(port->dev, &ecmd); | |
2595 | if (!err) { | |
71472ec1 JP |
2596 | port->state.speed = ethtool_cmd_speed(&ecmd); |
2597 | port->state.duplex = ecmd.duplex; | |
3d249d4c JP |
2598 | goto send_event; |
2599 | } | |
2600 | } | |
71472ec1 JP |
2601 | port->state.speed = 0; |
2602 | port->state.duplex = 0; | |
3d249d4c JP |
2603 | |
2604 | send_event: | |
d90f889e | 2605 | err = team_nl_send_event_port_get(port->team, port); |
0c7517e9 JP |
2606 | if (err && err != -ESRCH) |
2607 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", | |
2608 | port->dev->name, err); | |
3d249d4c JP |
2609 | |
2610 | } | |
2611 | ||
06a7fc42 FL |
2612 | static void __team_carrier_check(struct team *team) |
2613 | { | |
2614 | struct team_port *port; | |
2615 | bool team_linkup; | |
2616 | ||
e185483e FL |
2617 | if (team->user_carrier_enabled) |
2618 | return; | |
2619 | ||
06a7fc42 FL |
2620 | team_linkup = false; |
2621 | list_for_each_entry(port, &team->port_list, list) { | |
2622 | if (port->linkup) { | |
2623 | team_linkup = true; | |
2624 | break; | |
2625 | } | |
2626 | } | |
2627 | ||
2628 | if (team_linkup) | |
2629 | netif_carrier_on(team->dev); | |
2630 | else | |
2631 | netif_carrier_off(team->dev); | |
2632 | } | |
2633 | ||
10f3f51d JP |
2634 | static void __team_port_change_check(struct team_port *port, bool linkup) |
2635 | { | |
2636 | if (port->state.linkup != linkup) | |
2637 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2638 | __team_carrier_check(port->team); |
10f3f51d JP |
2639 | } |
2640 | ||
2641 | static void __team_port_change_port_added(struct team_port *port, bool linkup) | |
2642 | { | |
2643 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2644 | __team_carrier_check(port->team); |
10f3f51d JP |
2645 | } |
2646 | ||
2647 | static void __team_port_change_port_removed(struct team_port *port) | |
2648 | { | |
2649 | port->removed = true; | |
2650 | __team_port_change_send(port, false); | |
06a7fc42 | 2651 | __team_carrier_check(port->team); |
10f3f51d JP |
2652 | } |
2653 | ||
3d249d4c JP |
2654 | static void team_port_change_check(struct team_port *port, bool linkup) |
2655 | { | |
2656 | struct team *team = port->team; | |
2657 | ||
61dc3461 | 2658 | mutex_lock(&team->lock); |
3d249d4c | 2659 | __team_port_change_check(port, linkup); |
61dc3461 | 2660 | mutex_unlock(&team->lock); |
3d249d4c JP |
2661 | } |
2662 | ||
0f1aad2b | 2663 | |
3d249d4c JP |
2664 | /************************************ |
2665 | * Net device notifier event handler | |
2666 | ************************************/ | |
2667 | ||
2668 | static int team_device_event(struct notifier_block *unused, | |
2669 | unsigned long event, void *ptr) | |
2670 | { | |
351638e7 | 2671 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
3d249d4c JP |
2672 | struct team_port *port; |
2673 | ||
2674 | port = team_port_get_rtnl(dev); | |
2675 | if (!port) | |
2676 | return NOTIFY_DONE; | |
2677 | ||
2678 | switch (event) { | |
2679 | case NETDEV_UP: | |
2680 | if (netif_carrier_ok(dev)) | |
2681 | team_port_change_check(port, true); | |
2682 | case NETDEV_DOWN: | |
2683 | team_port_change_check(port, false); | |
2684 | case NETDEV_CHANGE: | |
2685 | if (netif_running(port->dev)) | |
2686 | team_port_change_check(port, | |
2687 | !!netif_carrier_ok(port->dev)); | |
2688 | break; | |
2689 | case NETDEV_UNREGISTER: | |
2690 | team_del_slave(port->team->dev, dev); | |
2691 | break; | |
2692 | case NETDEV_FEAT_CHANGE: | |
2693 | team_compute_features(port->team); | |
2694 | break; | |
2695 | case NETDEV_CHANGEMTU: | |
2696 | /* Forbid to change mtu of underlaying device */ | |
2697 | return NOTIFY_BAD; | |
2698 | case NETDEV_PRE_TYPE_CHANGE: | |
2699 | /* Forbid to change type of underlaying device */ | |
2700 | return NOTIFY_BAD; | |
2701 | } | |
2702 | return NOTIFY_DONE; | |
2703 | } | |
2704 | ||
2705 | static struct notifier_block team_notifier_block __read_mostly = { | |
2706 | .notifier_call = team_device_event, | |
2707 | }; | |
2708 | ||
2709 | ||
2710 | /*********************** | |
2711 | * Module init and exit | |
2712 | ***********************/ | |
2713 | ||
2714 | static int __init team_module_init(void) | |
2715 | { | |
2716 | int err; | |
2717 | ||
2718 | register_netdevice_notifier(&team_notifier_block); | |
2719 | ||
2720 | err = rtnl_link_register(&team_link_ops); | |
2721 | if (err) | |
2722 | goto err_rtnl_reg; | |
2723 | ||
2724 | err = team_nl_init(); | |
2725 | if (err) | |
2726 | goto err_nl_init; | |
2727 | ||
2728 | return 0; | |
2729 | ||
2730 | err_nl_init: | |
2731 | rtnl_link_unregister(&team_link_ops); | |
2732 | ||
2733 | err_rtnl_reg: | |
2734 | unregister_netdevice_notifier(&team_notifier_block); | |
2735 | ||
2736 | return err; | |
2737 | } | |
2738 | ||
2739 | static void __exit team_module_exit(void) | |
2740 | { | |
2741 | team_nl_fini(); | |
2742 | rtnl_link_unregister(&team_link_ops); | |
2743 | unregister_netdevice_notifier(&team_notifier_block); | |
2744 | } | |
2745 | ||
2746 | module_init(team_module_init); | |
2747 | module_exit(team_module_exit); | |
2748 | ||
2749 | MODULE_LICENSE("GPL v2"); | |
2750 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
2751 | MODULE_DESCRIPTION("Ethernet team device driver"); | |
2752 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |