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 | ||
fc423ff0 JP |
625 | /********************* |
626 | * Peers notification | |
627 | *********************/ | |
628 | ||
629 | static void team_notify_peers_work(struct work_struct *work) | |
630 | { | |
631 | struct team *team; | |
632 | ||
633 | team = container_of(work, struct team, notify_peers.dw.work); | |
634 | ||
635 | if (!rtnl_trylock()) { | |
636 | schedule_delayed_work(&team->notify_peers.dw, 0); | |
637 | return; | |
638 | } | |
639 | call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev); | |
640 | rtnl_unlock(); | |
641 | if (!atomic_dec_and_test(&team->notify_peers.count_pending)) | |
642 | schedule_delayed_work(&team->notify_peers.dw, | |
643 | msecs_to_jiffies(team->notify_peers.interval)); | |
644 | } | |
645 | ||
646 | static void team_notify_peers(struct team *team) | |
647 | { | |
648 | if (!team->notify_peers.count || !netif_running(team->dev)) | |
649 | return; | |
650 | atomic_set(&team->notify_peers.count_pending, team->notify_peers.count); | |
651 | schedule_delayed_work(&team->notify_peers.dw, 0); | |
652 | } | |
653 | ||
654 | static void team_notify_peers_init(struct team *team) | |
655 | { | |
656 | INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work); | |
657 | } | |
658 | ||
659 | static void team_notify_peers_fini(struct team *team) | |
660 | { | |
661 | cancel_delayed_work_sync(&team->notify_peers.dw); | |
662 | } | |
663 | ||
664 | ||
492b200e JP |
665 | /******************************* |
666 | * Send multicast group rejoins | |
667 | *******************************/ | |
668 | ||
669 | static void team_mcast_rejoin_work(struct work_struct *work) | |
670 | { | |
671 | struct team *team; | |
672 | ||
673 | team = container_of(work, struct team, mcast_rejoin.dw.work); | |
674 | ||
675 | if (!rtnl_trylock()) { | |
676 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); | |
677 | return; | |
678 | } | |
679 | call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev); | |
680 | rtnl_unlock(); | |
681 | if (!atomic_dec_and_test(&team->mcast_rejoin.count_pending)) | |
682 | schedule_delayed_work(&team->mcast_rejoin.dw, | |
683 | msecs_to_jiffies(team->mcast_rejoin.interval)); | |
684 | } | |
685 | ||
686 | static void team_mcast_rejoin(struct team *team) | |
687 | { | |
688 | if (!team->mcast_rejoin.count || !netif_running(team->dev)) | |
689 | return; | |
690 | atomic_set(&team->mcast_rejoin.count_pending, team->mcast_rejoin.count); | |
691 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); | |
692 | } | |
693 | ||
694 | static void team_mcast_rejoin_init(struct team *team) | |
695 | { | |
696 | INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work); | |
697 | } | |
698 | ||
699 | static void team_mcast_rejoin_fini(struct team *team) | |
700 | { | |
701 | cancel_delayed_work_sync(&team->mcast_rejoin.dw); | |
702 | } | |
703 | ||
704 | ||
3d249d4c JP |
705 | /************************ |
706 | * Rx path frame handler | |
707 | ************************/ | |
708 | ||
709 | /* note: already called with rcu_read_lock */ | |
710 | static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) | |
711 | { | |
712 | struct sk_buff *skb = *pskb; | |
713 | struct team_port *port; | |
714 | struct team *team; | |
715 | rx_handler_result_t res; | |
716 | ||
717 | skb = skb_share_check(skb, GFP_ATOMIC); | |
718 | if (!skb) | |
719 | return RX_HANDLER_CONSUMED; | |
720 | ||
721 | *pskb = skb; | |
722 | ||
723 | port = team_port_get_rcu(skb->dev); | |
724 | team = port->team; | |
19a0b58e JP |
725 | if (!team_port_enabled(port)) { |
726 | /* allow exact match delivery for disabled ports */ | |
727 | res = RX_HANDLER_EXACT; | |
728 | } else { | |
729 | res = team->ops.receive(team, port, skb); | |
730 | } | |
3d249d4c JP |
731 | if (res == RX_HANDLER_ANOTHER) { |
732 | struct team_pcpu_stats *pcpu_stats; | |
733 | ||
734 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
735 | u64_stats_update_begin(&pcpu_stats->syncp); | |
736 | pcpu_stats->rx_packets++; | |
737 | pcpu_stats->rx_bytes += skb->len; | |
738 | if (skb->pkt_type == PACKET_MULTICAST) | |
739 | pcpu_stats->rx_multicast++; | |
740 | u64_stats_update_end(&pcpu_stats->syncp); | |
741 | ||
742 | skb->dev = team->dev; | |
743 | } else { | |
744 | this_cpu_inc(team->pcpu_stats->rx_dropped); | |
745 | } | |
746 | ||
747 | return res; | |
748 | } | |
749 | ||
750 | ||
8ff5105a JP |
751 | /************************************* |
752 | * Multiqueue Tx port select override | |
753 | *************************************/ | |
754 | ||
755 | static int team_queue_override_init(struct team *team) | |
756 | { | |
757 | struct list_head *listarr; | |
758 | unsigned int queue_cnt = team->dev->num_tx_queues - 1; | |
759 | unsigned int i; | |
760 | ||
761 | if (!queue_cnt) | |
762 | return 0; | |
763 | listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); | |
764 | if (!listarr) | |
765 | return -ENOMEM; | |
766 | team->qom_lists = listarr; | |
767 | for (i = 0; i < queue_cnt; i++) | |
768 | INIT_LIST_HEAD(listarr++); | |
769 | return 0; | |
770 | } | |
771 | ||
772 | static void team_queue_override_fini(struct team *team) | |
773 | { | |
774 | kfree(team->qom_lists); | |
775 | } | |
776 | ||
777 | static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) | |
778 | { | |
779 | return &team->qom_lists[queue_id - 1]; | |
780 | } | |
781 | ||
782 | /* | |
783 | * note: already called with rcu_read_lock | |
784 | */ | |
785 | static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) | |
786 | { | |
787 | struct list_head *qom_list; | |
788 | struct team_port *port; | |
789 | ||
790 | if (!team->queue_override_enabled || !skb->queue_mapping) | |
791 | return false; | |
792 | qom_list = __team_get_qom_list(team, skb->queue_mapping); | |
793 | list_for_each_entry_rcu(port, qom_list, qom_list) { | |
794 | if (!team_dev_queue_xmit(team, port, skb)) | |
795 | return true; | |
796 | } | |
797 | return false; | |
798 | } | |
799 | ||
800 | static void __team_queue_override_port_del(struct team *team, | |
801 | struct team_port *port) | |
802 | { | |
6c31ff36 JP |
803 | if (!port->queue_id) |
804 | return; | |
8ff5105a | 805 | list_del_rcu(&port->qom_list); |
8ff5105a JP |
806 | } |
807 | ||
808 | static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, | |
809 | struct team_port *cur) | |
810 | { | |
811 | if (port->priority < cur->priority) | |
812 | return true; | |
813 | if (port->priority > cur->priority) | |
814 | return false; | |
815 | if (port->index < cur->index) | |
816 | return true; | |
817 | return false; | |
818 | } | |
819 | ||
820 | static void __team_queue_override_port_add(struct team *team, | |
821 | struct team_port *port) | |
822 | { | |
823 | struct team_port *cur; | |
824 | struct list_head *qom_list; | |
825 | struct list_head *node; | |
826 | ||
6c31ff36 | 827 | if (!port->queue_id) |
8ff5105a | 828 | return; |
8ff5105a JP |
829 | qom_list = __team_get_qom_list(team, port->queue_id); |
830 | node = qom_list; | |
831 | list_for_each_entry(cur, qom_list, qom_list) { | |
832 | if (team_queue_override_port_has_gt_prio_than(port, cur)) | |
833 | break; | |
834 | node = &cur->qom_list; | |
835 | } | |
836 | list_add_tail_rcu(&port->qom_list, node); | |
837 | } | |
838 | ||
839 | static void __team_queue_override_enabled_check(struct team *team) | |
840 | { | |
841 | struct team_port *port; | |
842 | bool enabled = false; | |
843 | ||
844 | list_for_each_entry(port, &team->port_list, list) { | |
6c31ff36 | 845 | if (port->queue_id) { |
8ff5105a JP |
846 | enabled = true; |
847 | break; | |
848 | } | |
849 | } | |
850 | if (enabled == team->queue_override_enabled) | |
851 | return; | |
852 | netdev_dbg(team->dev, "%s queue override\n", | |
853 | enabled ? "Enabling" : "Disabling"); | |
854 | team->queue_override_enabled = enabled; | |
855 | } | |
856 | ||
6c31ff36 JP |
857 | static void team_queue_override_port_prio_changed(struct team *team, |
858 | struct team_port *port) | |
8ff5105a | 859 | { |
6c31ff36 JP |
860 | if (!port->queue_id || team_port_enabled(port)) |
861 | return; | |
8ff5105a JP |
862 | __team_queue_override_port_del(team, port); |
863 | __team_queue_override_port_add(team, port); | |
864 | __team_queue_override_enabled_check(team); | |
865 | } | |
866 | ||
6c31ff36 JP |
867 | static void team_queue_override_port_change_queue_id(struct team *team, |
868 | struct team_port *port, | |
869 | u16 new_queue_id) | |
870 | { | |
871 | if (team_port_enabled(port)) { | |
872 | __team_queue_override_port_del(team, port); | |
873 | port->queue_id = new_queue_id; | |
874 | __team_queue_override_port_add(team, port); | |
875 | __team_queue_override_enabled_check(team); | |
876 | } else { | |
877 | port->queue_id = new_queue_id; | |
878 | } | |
879 | } | |
880 | ||
881 | static void team_queue_override_port_add(struct team *team, | |
882 | struct team_port *port) | |
883 | { | |
884 | __team_queue_override_port_add(team, port); | |
885 | __team_queue_override_enabled_check(team); | |
886 | } | |
887 | ||
888 | static void team_queue_override_port_del(struct team *team, | |
889 | struct team_port *port) | |
890 | { | |
891 | __team_queue_override_port_del(team, port); | |
892 | __team_queue_override_enabled_check(team); | |
893 | } | |
894 | ||
8ff5105a | 895 | |
3d249d4c JP |
896 | /**************** |
897 | * Port handling | |
898 | ****************/ | |
899 | ||
900 | static bool team_port_find(const struct team *team, | |
901 | const struct team_port *port) | |
902 | { | |
903 | struct team_port *cur; | |
904 | ||
905 | list_for_each_entry(cur, &team->port_list, list) | |
906 | if (cur == port) | |
907 | return true; | |
908 | return false; | |
909 | } | |
910 | ||
911 | /* | |
19a0b58e JP |
912 | * Enable/disable port by adding to enabled port hashlist and setting |
913 | * port->index (Might be racy so reader could see incorrect ifindex when | |
914 | * processing a flying packet, but that is not a problem). Write guarded | |
915 | * by team->lock. | |
3d249d4c | 916 | */ |
19a0b58e JP |
917 | static void team_port_enable(struct team *team, |
918 | struct team_port *port) | |
3d249d4c | 919 | { |
19a0b58e JP |
920 | if (team_port_enabled(port)) |
921 | return; | |
922 | port->index = team->en_port_count++; | |
3d249d4c JP |
923 | hlist_add_head_rcu(&port->hlist, |
924 | team_port_index_hash(team, port->index)); | |
122bb046 | 925 | team_adjust_ops(team); |
6c31ff36 | 926 | team_queue_override_port_add(team, port); |
4bccfd17 JP |
927 | if (team->ops.port_enabled) |
928 | team->ops.port_enabled(team, port); | |
fc423ff0 | 929 | team_notify_peers(team); |
492b200e | 930 | team_mcast_rejoin(team); |
3d249d4c JP |
931 | } |
932 | ||
933 | static void __reconstruct_port_hlist(struct team *team, int rm_index) | |
934 | { | |
935 | int i; | |
936 | struct team_port *port; | |
937 | ||
19a0b58e | 938 | for (i = rm_index + 1; i < team->en_port_count; i++) { |
3d249d4c JP |
939 | port = team_get_port_by_index(team, i); |
940 | hlist_del_rcu(&port->hlist); | |
941 | port->index--; | |
942 | hlist_add_head_rcu(&port->hlist, | |
943 | team_port_index_hash(team, port->index)); | |
944 | } | |
945 | } | |
946 | ||
19a0b58e JP |
947 | static void team_port_disable(struct team *team, |
948 | struct team_port *port) | |
3d249d4c | 949 | { |
19a0b58e JP |
950 | if (!team_port_enabled(port)) |
951 | return; | |
4bccfd17 JP |
952 | if (team->ops.port_disabled) |
953 | team->ops.port_disabled(team, port); | |
3d249d4c | 954 | hlist_del_rcu(&port->hlist); |
122bb046 | 955 | __reconstruct_port_hlist(team, port->index); |
19a0b58e | 956 | port->index = -1; |
122bb046 | 957 | team->en_port_count--; |
735d381f JP |
958 | team_queue_override_port_del(team, port); |
959 | team_adjust_ops(team); | |
fc423ff0 | 960 | team_notify_peers(team); |
492b200e | 961 | team_mcast_rejoin(team); |
3d249d4c JP |
962 | } |
963 | ||
964 | #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ | |
965 | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ | |
966 | NETIF_F_HIGHDMA | NETIF_F_LRO) | |
967 | ||
968 | static void __team_compute_features(struct team *team) | |
969 | { | |
970 | struct team_port *port; | |
3625920b | 971 | u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL; |
3d249d4c | 972 | unsigned short max_hard_header_len = ETH_HLEN; |
dc905951 | 973 | unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE; |
3d249d4c JP |
974 | |
975 | list_for_each_entry(port, &team->port_list, list) { | |
976 | vlan_features = netdev_increment_features(vlan_features, | |
977 | port->dev->vlan_features, | |
978 | TEAM_VLAN_FEATURES); | |
979 | ||
dc905951 | 980 | dst_release_flag &= port->dev->priv_flags; |
3d249d4c JP |
981 | if (port->dev->hard_header_len > max_hard_header_len) |
982 | max_hard_header_len = port->dev->hard_header_len; | |
983 | } | |
984 | ||
985 | team->dev->vlan_features = vlan_features; | |
986 | team->dev->hard_header_len = max_hard_header_len; | |
987 | ||
dc905951 JP |
988 | flags = team->dev->priv_flags & ~IFF_XMIT_DST_RELEASE; |
989 | team->dev->priv_flags = flags | dst_release_flag; | |
990 | ||
3d249d4c JP |
991 | netdev_change_features(team->dev); |
992 | } | |
993 | ||
994 | static void team_compute_features(struct team *team) | |
995 | { | |
61dc3461 | 996 | mutex_lock(&team->lock); |
3d249d4c | 997 | __team_compute_features(team); |
61dc3461 | 998 | mutex_unlock(&team->lock); |
3d249d4c JP |
999 | } |
1000 | ||
1001 | static int team_port_enter(struct team *team, struct team_port *port) | |
1002 | { | |
1003 | int err = 0; | |
1004 | ||
1005 | dev_hold(team->dev); | |
1006 | port->dev->priv_flags |= IFF_TEAM_PORT; | |
1007 | if (team->ops.port_enter) { | |
1008 | err = team->ops.port_enter(team, port); | |
1009 | if (err) { | |
1010 | netdev_err(team->dev, "Device %s failed to enter team mode\n", | |
1011 | port->dev->name); | |
1012 | goto err_port_enter; | |
1013 | } | |
1014 | } | |
1015 | ||
1016 | return 0; | |
1017 | ||
1018 | err_port_enter: | |
1019 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
1020 | dev_put(team->dev); | |
1021 | ||
1022 | return err; | |
1023 | } | |
1024 | ||
1025 | static void team_port_leave(struct team *team, struct team_port *port) | |
1026 | { | |
1027 | if (team->ops.port_leave) | |
1028 | team->ops.port_leave(team, port); | |
1029 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
1030 | dev_put(team->dev); | |
1031 | } | |
1032 | ||
bd2d0837 | 1033 | #ifdef CONFIG_NET_POLL_CONTROLLER |
a8779ec1 | 1034 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
bd2d0837 JP |
1035 | { |
1036 | struct netpoll *np; | |
1037 | int err; | |
1038 | ||
0fb52a27 | 1039 | if (!team->dev->npinfo) |
1040 | return 0; | |
1041 | ||
a8779ec1 | 1042 | np = kzalloc(sizeof(*np), GFP_KERNEL); |
bd2d0837 JP |
1043 | if (!np) |
1044 | return -ENOMEM; | |
1045 | ||
a8779ec1 | 1046 | err = __netpoll_setup(np, port->dev); |
bd2d0837 JP |
1047 | if (err) { |
1048 | kfree(np); | |
1049 | return err; | |
1050 | } | |
1051 | port->np = np; | |
1052 | return err; | |
1053 | } | |
1054 | ||
1055 | static void team_port_disable_netpoll(struct team_port *port) | |
1056 | { | |
1057 | struct netpoll *np = port->np; | |
1058 | ||
1059 | if (!np) | |
1060 | return; | |
1061 | port->np = NULL; | |
1062 | ||
1063 | /* Wait for transmitting packets to finish before freeing. */ | |
1064 | synchronize_rcu_bh(); | |
1065 | __netpoll_cleanup(np); | |
1066 | kfree(np); | |
1067 | } | |
bd2d0837 | 1068 | #else |
a8779ec1 | 1069 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
bd2d0837 JP |
1070 | { |
1071 | return 0; | |
1072 | } | |
1073 | static void team_port_disable_netpoll(struct team_port *port) | |
1074 | { | |
1075 | } | |
bd2d0837 JP |
1076 | #endif |
1077 | ||
10f3f51d | 1078 | static void __team_port_change_port_added(struct team_port *port, bool linkup); |
1d76efe1 JP |
1079 | static int team_dev_type_check_change(struct net_device *dev, |
1080 | struct net_device *port_dev); | |
3d249d4c JP |
1081 | |
1082 | static int team_port_add(struct team *team, struct net_device *port_dev) | |
1083 | { | |
1084 | struct net_device *dev = team->dev; | |
1085 | struct team_port *port; | |
1086 | char *portname = port_dev->name; | |
1087 | int err; | |
1088 | ||
1d76efe1 JP |
1089 | if (port_dev->flags & IFF_LOOPBACK) { |
1090 | netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", | |
3d249d4c JP |
1091 | portname); |
1092 | return -EINVAL; | |
1093 | } | |
1094 | ||
1095 | if (team_port_exists(port_dev)) { | |
1096 | netdev_err(dev, "Device %s is already a port " | |
1097 | "of a team device\n", portname); | |
1098 | return -EBUSY; | |
1099 | } | |
1100 | ||
2c33bb37 JP |
1101 | if (port_dev->features & NETIF_F_VLAN_CHALLENGED && |
1102 | vlan_uses_dev(dev)) { | |
1103 | netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", | |
1104 | portname); | |
1105 | return -EPERM; | |
1106 | } | |
1107 | ||
1d76efe1 JP |
1108 | err = team_dev_type_check_change(dev, port_dev); |
1109 | if (err) | |
1110 | return err; | |
1111 | ||
3d249d4c JP |
1112 | if (port_dev->flags & IFF_UP) { |
1113 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", | |
1114 | portname); | |
1115 | return -EBUSY; | |
1116 | } | |
1117 | ||
5149ee58 JP |
1118 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
1119 | GFP_KERNEL); | |
3d249d4c JP |
1120 | if (!port) |
1121 | return -ENOMEM; | |
1122 | ||
1123 | port->dev = port_dev; | |
1124 | port->team = team; | |
8ff5105a | 1125 | INIT_LIST_HEAD(&port->qom_list); |
3d249d4c JP |
1126 | |
1127 | port->orig.mtu = port_dev->mtu; | |
1128 | err = dev_set_mtu(port_dev, dev->mtu); | |
1129 | if (err) { | |
1130 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); | |
1131 | goto err_set_mtu; | |
1132 | } | |
1133 | ||
1d76efe1 | 1134 | memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); |
3d249d4c JP |
1135 | |
1136 | err = team_port_enter(team, port); | |
1137 | if (err) { | |
1138 | netdev_err(dev, "Device %s failed to enter team mode\n", | |
1139 | portname); | |
1140 | goto err_port_enter; | |
1141 | } | |
1142 | ||
1143 | err = dev_open(port_dev); | |
1144 | if (err) { | |
1145 | netdev_dbg(dev, "Device %s opening failed\n", | |
1146 | portname); | |
1147 | goto err_dev_open; | |
1148 | } | |
1149 | ||
57459185 JP |
1150 | err = vlan_vids_add_by_dev(port_dev, dev); |
1151 | if (err) { | |
1152 | netdev_err(dev, "Failed to add vlan ids to device %s\n", | |
1153 | portname); | |
1154 | goto err_vids_add; | |
1155 | } | |
1156 | ||
a8779ec1 | 1157 | err = team_port_enable_netpoll(team, port); |
0fb52a27 | 1158 | if (err) { |
1159 | netdev_err(dev, "Failed to enable netpoll on device %s\n", | |
1160 | portname); | |
1161 | goto err_enable_netpoll; | |
bd2d0837 JP |
1162 | } |
1163 | ||
b1cc9850 | 1164 | err = netdev_master_upper_dev_link(port_dev, dev); |
3d249d4c | 1165 | if (err) { |
b1cc9850 JP |
1166 | netdev_err(dev, "Device %s failed to set upper link\n", |
1167 | portname); | |
1168 | goto err_set_upper_link; | |
3d249d4c JP |
1169 | } |
1170 | ||
1171 | err = netdev_rx_handler_register(port_dev, team_handle_frame, | |
1172 | port); | |
1173 | if (err) { | |
1174 | netdev_err(dev, "Device %s failed to register rx_handler\n", | |
1175 | portname); | |
1176 | goto err_handler_register; | |
1177 | } | |
1178 | ||
35b384bd | 1179 | err = __team_option_inst_add_port(team, port); |
80f7c668 JP |
1180 | if (err) { |
1181 | netdev_err(dev, "Device %s failed to add per-port options\n", | |
1182 | portname); | |
1183 | goto err_option_port_add; | |
1184 | } | |
1185 | ||
19a0b58e | 1186 | port->index = -1; |
19a0b58e | 1187 | list_add_tail_rcu(&port->list, &team->port_list); |
72df935d | 1188 | team_port_enable(team, port); |
3d249d4c | 1189 | __team_compute_features(team); |
10f3f51d | 1190 | __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); |
35b384bd | 1191 | __team_options_change_check(team); |
3d249d4c JP |
1192 | |
1193 | netdev_info(dev, "Port device %s added\n", portname); | |
1194 | ||
1195 | return 0; | |
1196 | ||
80f7c668 JP |
1197 | err_option_port_add: |
1198 | netdev_rx_handler_unregister(port_dev); | |
1199 | ||
3d249d4c | 1200 | err_handler_register: |
b1cc9850 | 1201 | netdev_upper_dev_unlink(port_dev, dev); |
3d249d4c | 1202 | |
b1cc9850 | 1203 | err_set_upper_link: |
bd2d0837 JP |
1204 | team_port_disable_netpoll(port); |
1205 | ||
1206 | err_enable_netpoll: | |
57459185 JP |
1207 | vlan_vids_del_by_dev(port_dev, dev); |
1208 | ||
1209 | err_vids_add: | |
3d249d4c JP |
1210 | dev_close(port_dev); |
1211 | ||
1212 | err_dev_open: | |
1213 | team_port_leave(team, port); | |
1d76efe1 | 1214 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1215 | |
1216 | err_port_enter: | |
1217 | dev_set_mtu(port_dev, port->orig.mtu); | |
1218 | ||
1219 | err_set_mtu: | |
1220 | kfree(port); | |
1221 | ||
1222 | return err; | |
1223 | } | |
1224 | ||
10f3f51d JP |
1225 | static void __team_port_change_port_removed(struct team_port *port); |
1226 | ||
3d249d4c JP |
1227 | static int team_port_del(struct team *team, struct net_device *port_dev) |
1228 | { | |
1229 | struct net_device *dev = team->dev; | |
1230 | struct team_port *port; | |
1231 | char *portname = port_dev->name; | |
1232 | ||
1233 | port = team_port_get_rtnl(port_dev); | |
1234 | if (!port || !team_port_find(team, port)) { | |
1235 | netdev_err(dev, "Device %s does not act as a port of this team\n", | |
1236 | portname); | |
1237 | return -ENOENT; | |
1238 | } | |
1239 | ||
19a0b58e JP |
1240 | team_port_disable(team, port); |
1241 | list_del_rcu(&port->list); | |
3d249d4c | 1242 | netdev_rx_handler_unregister(port_dev); |
b1cc9850 | 1243 | netdev_upper_dev_unlink(port_dev, dev); |
bd2d0837 | 1244 | team_port_disable_netpoll(port); |
57459185 | 1245 | vlan_vids_del_by_dev(port_dev, dev); |
ba81276b VY |
1246 | dev_uc_unsync(port_dev, dev); |
1247 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1248 | dev_close(port_dev); |
1249 | team_port_leave(team, port); | |
c3969d80 JP |
1250 | |
1251 | __team_option_inst_mark_removed_port(team, port); | |
1252 | __team_options_change_check(team); | |
1253 | __team_option_inst_del_port(team, port); | |
1254 | __team_port_change_port_removed(port); | |
1255 | ||
1d76efe1 | 1256 | team_port_set_orig_dev_addr(port); |
3d249d4c | 1257 | dev_set_mtu(port_dev, port->orig.mtu); |
d80b35be | 1258 | kfree_rcu(port, rcu); |
3d249d4c JP |
1259 | netdev_info(dev, "Port device %s removed\n", portname); |
1260 | __team_compute_features(team); | |
1261 | ||
1262 | return 0; | |
1263 | } | |
1264 | ||
1265 | ||
1266 | /***************** | |
1267 | * Net device ops | |
1268 | *****************/ | |
1269 | ||
80f7c668 | 1270 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1271 | { |
d299cd51 | 1272 | ctx->data.str_val = team->mode->kind; |
3d249d4c JP |
1273 | return 0; |
1274 | } | |
1275 | ||
80f7c668 | 1276 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1277 | { |
80f7c668 | 1278 | return team_change_mode(team, ctx->data.str_val); |
3d249d4c JP |
1279 | } |
1280 | ||
fc423ff0 JP |
1281 | static int team_notify_peers_count_get(struct team *team, |
1282 | struct team_gsetter_ctx *ctx) | |
1283 | { | |
1284 | ctx->data.u32_val = team->notify_peers.count; | |
1285 | return 0; | |
1286 | } | |
1287 | ||
1288 | static int team_notify_peers_count_set(struct team *team, | |
1289 | struct team_gsetter_ctx *ctx) | |
1290 | { | |
1291 | team->notify_peers.count = ctx->data.u32_val; | |
1292 | return 0; | |
1293 | } | |
1294 | ||
1295 | static int team_notify_peers_interval_get(struct team *team, | |
1296 | struct team_gsetter_ctx *ctx) | |
1297 | { | |
1298 | ctx->data.u32_val = team->notify_peers.interval; | |
1299 | return 0; | |
1300 | } | |
1301 | ||
1302 | static int team_notify_peers_interval_set(struct team *team, | |
1303 | struct team_gsetter_ctx *ctx) | |
1304 | { | |
1305 | team->notify_peers.interval = ctx->data.u32_val; | |
1306 | return 0; | |
1307 | } | |
1308 | ||
492b200e JP |
1309 | static int team_mcast_rejoin_count_get(struct team *team, |
1310 | struct team_gsetter_ctx *ctx) | |
1311 | { | |
1312 | ctx->data.u32_val = team->mcast_rejoin.count; | |
1313 | return 0; | |
1314 | } | |
1315 | ||
1316 | static int team_mcast_rejoin_count_set(struct team *team, | |
1317 | struct team_gsetter_ctx *ctx) | |
1318 | { | |
1319 | team->mcast_rejoin.count = ctx->data.u32_val; | |
1320 | return 0; | |
1321 | } | |
1322 | ||
1323 | static int team_mcast_rejoin_interval_get(struct team *team, | |
1324 | struct team_gsetter_ctx *ctx) | |
1325 | { | |
1326 | ctx->data.u32_val = team->mcast_rejoin.interval; | |
1327 | return 0; | |
1328 | } | |
1329 | ||
1330 | static int team_mcast_rejoin_interval_set(struct team *team, | |
1331 | struct team_gsetter_ctx *ctx) | |
1332 | { | |
1333 | team->mcast_rejoin.interval = ctx->data.u32_val; | |
1334 | return 0; | |
1335 | } | |
1336 | ||
acd69962 JP |
1337 | static int team_port_en_option_get(struct team *team, |
1338 | struct team_gsetter_ctx *ctx) | |
1339 | { | |
85d59a87 JP |
1340 | struct team_port *port = ctx->info->port; |
1341 | ||
1342 | ctx->data.bool_val = team_port_enabled(port); | |
acd69962 JP |
1343 | return 0; |
1344 | } | |
1345 | ||
1346 | static int team_port_en_option_set(struct team *team, | |
1347 | struct team_gsetter_ctx *ctx) | |
1348 | { | |
85d59a87 JP |
1349 | struct team_port *port = ctx->info->port; |
1350 | ||
acd69962 | 1351 | if (ctx->data.bool_val) |
85d59a87 | 1352 | team_port_enable(team, port); |
acd69962 | 1353 | else |
85d59a87 | 1354 | team_port_disable(team, port); |
acd69962 JP |
1355 | return 0; |
1356 | } | |
1357 | ||
71472ec1 JP |
1358 | static int team_user_linkup_option_get(struct team *team, |
1359 | struct team_gsetter_ctx *ctx) | |
1360 | { | |
85d59a87 JP |
1361 | struct team_port *port = ctx->info->port; |
1362 | ||
1363 | ctx->data.bool_val = port->user.linkup; | |
71472ec1 JP |
1364 | return 0; |
1365 | } | |
1366 | ||
f5e0d343 JP |
1367 | static void __team_carrier_check(struct team *team); |
1368 | ||
71472ec1 JP |
1369 | static int team_user_linkup_option_set(struct team *team, |
1370 | struct team_gsetter_ctx *ctx) | |
1371 | { | |
85d59a87 JP |
1372 | struct team_port *port = ctx->info->port; |
1373 | ||
1374 | port->user.linkup = ctx->data.bool_val; | |
1375 | team_refresh_port_linkup(port); | |
f5e0d343 | 1376 | __team_carrier_check(port->team); |
71472ec1 JP |
1377 | return 0; |
1378 | } | |
1379 | ||
1380 | static int team_user_linkup_en_option_get(struct team *team, | |
1381 | struct team_gsetter_ctx *ctx) | |
1382 | { | |
85d59a87 | 1383 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1384 | |
1385 | ctx->data.bool_val = port->user.linkup_enabled; | |
1386 | return 0; | |
1387 | } | |
1388 | ||
1389 | static int team_user_linkup_en_option_set(struct team *team, | |
1390 | struct team_gsetter_ctx *ctx) | |
1391 | { | |
85d59a87 | 1392 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1393 | |
1394 | port->user.linkup_enabled = ctx->data.bool_val; | |
85d59a87 | 1395 | team_refresh_port_linkup(port); |
f5e0d343 | 1396 | __team_carrier_check(port->team); |
71472ec1 JP |
1397 | return 0; |
1398 | } | |
1399 | ||
a86fc6b7 JP |
1400 | static int team_priority_option_get(struct team *team, |
1401 | struct team_gsetter_ctx *ctx) | |
1402 | { | |
1403 | struct team_port *port = ctx->info->port; | |
1404 | ||
1405 | ctx->data.s32_val = port->priority; | |
1406 | return 0; | |
1407 | } | |
1408 | ||
1409 | static int team_priority_option_set(struct team *team, | |
1410 | struct team_gsetter_ctx *ctx) | |
1411 | { | |
1412 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1413 | s32 priority = ctx->data.s32_val; |
a86fc6b7 | 1414 | |
6c31ff36 JP |
1415 | if (port->priority == priority) |
1416 | return 0; | |
1417 | port->priority = priority; | |
1418 | team_queue_override_port_prio_changed(team, port); | |
8ff5105a JP |
1419 | return 0; |
1420 | } | |
1421 | ||
1422 | static int team_queue_id_option_get(struct team *team, | |
1423 | struct team_gsetter_ctx *ctx) | |
1424 | { | |
1425 | struct team_port *port = ctx->info->port; | |
1426 | ||
1427 | ctx->data.u32_val = port->queue_id; | |
a86fc6b7 JP |
1428 | return 0; |
1429 | } | |
1430 | ||
8ff5105a JP |
1431 | static int team_queue_id_option_set(struct team *team, |
1432 | struct team_gsetter_ctx *ctx) | |
1433 | { | |
1434 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1435 | u16 new_queue_id = ctx->data.u32_val; |
8ff5105a | 1436 | |
6c31ff36 | 1437 | if (port->queue_id == new_queue_id) |
8ff5105a | 1438 | return 0; |
6c31ff36 | 1439 | if (new_queue_id >= team->dev->real_num_tx_queues) |
8ff5105a | 1440 | return -EINVAL; |
6c31ff36 | 1441 | team_queue_override_port_change_queue_id(team, port, new_queue_id); |
8ff5105a JP |
1442 | return 0; |
1443 | } | |
1444 | ||
358b8382 | 1445 | static const struct team_option team_options[] = { |
3d249d4c JP |
1446 | { |
1447 | .name = "mode", | |
1448 | .type = TEAM_OPTION_TYPE_STRING, | |
1449 | .getter = team_mode_option_get, | |
1450 | .setter = team_mode_option_set, | |
1451 | }, | |
fc423ff0 JP |
1452 | { |
1453 | .name = "notify_peers_count", | |
1454 | .type = TEAM_OPTION_TYPE_U32, | |
1455 | .getter = team_notify_peers_count_get, | |
1456 | .setter = team_notify_peers_count_set, | |
1457 | }, | |
1458 | { | |
1459 | .name = "notify_peers_interval", | |
1460 | .type = TEAM_OPTION_TYPE_U32, | |
1461 | .getter = team_notify_peers_interval_get, | |
1462 | .setter = team_notify_peers_interval_set, | |
1463 | }, | |
492b200e JP |
1464 | { |
1465 | .name = "mcast_rejoin_count", | |
1466 | .type = TEAM_OPTION_TYPE_U32, | |
1467 | .getter = team_mcast_rejoin_count_get, | |
1468 | .setter = team_mcast_rejoin_count_set, | |
1469 | }, | |
1470 | { | |
1471 | .name = "mcast_rejoin_interval", | |
1472 | .type = TEAM_OPTION_TYPE_U32, | |
1473 | .getter = team_mcast_rejoin_interval_get, | |
1474 | .setter = team_mcast_rejoin_interval_set, | |
1475 | }, | |
acd69962 JP |
1476 | { |
1477 | .name = "enabled", | |
1478 | .type = TEAM_OPTION_TYPE_BOOL, | |
1479 | .per_port = true, | |
1480 | .getter = team_port_en_option_get, | |
1481 | .setter = team_port_en_option_set, | |
1482 | }, | |
71472ec1 JP |
1483 | { |
1484 | .name = "user_linkup", | |
1485 | .type = TEAM_OPTION_TYPE_BOOL, | |
1486 | .per_port = true, | |
1487 | .getter = team_user_linkup_option_get, | |
1488 | .setter = team_user_linkup_option_set, | |
1489 | }, | |
1490 | { | |
1491 | .name = "user_linkup_enabled", | |
1492 | .type = TEAM_OPTION_TYPE_BOOL, | |
1493 | .per_port = true, | |
1494 | .getter = team_user_linkup_en_option_get, | |
1495 | .setter = team_user_linkup_en_option_set, | |
1496 | }, | |
a86fc6b7 JP |
1497 | { |
1498 | .name = "priority", | |
1499 | .type = TEAM_OPTION_TYPE_S32, | |
1500 | .per_port = true, | |
1501 | .getter = team_priority_option_get, | |
1502 | .setter = team_priority_option_set, | |
1503 | }, | |
8ff5105a JP |
1504 | { |
1505 | .name = "queue_id", | |
1506 | .type = TEAM_OPTION_TYPE_U32, | |
1507 | .per_port = true, | |
1508 | .getter = team_queue_id_option_get, | |
1509 | .setter = team_queue_id_option_set, | |
1510 | }, | |
3d249d4c JP |
1511 | }; |
1512 | ||
6c85f2bd JP |
1513 | static struct lock_class_key team_netdev_xmit_lock_key; |
1514 | static struct lock_class_key team_netdev_addr_lock_key; | |
b3c581d5 | 1515 | static struct lock_class_key team_tx_busylock_key; |
6c85f2bd JP |
1516 | |
1517 | static void team_set_lockdep_class_one(struct net_device *dev, | |
1518 | struct netdev_queue *txq, | |
1519 | void *unused) | |
1520 | { | |
1521 | lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); | |
1522 | } | |
1523 | ||
1524 | static void team_set_lockdep_class(struct net_device *dev) | |
1525 | { | |
1526 | lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); | |
1527 | netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); | |
b3c581d5 | 1528 | dev->qdisc_tx_busylock = &team_tx_busylock_key; |
6c85f2bd JP |
1529 | } |
1530 | ||
3d249d4c JP |
1531 | static int team_init(struct net_device *dev) |
1532 | { | |
1533 | struct team *team = netdev_priv(dev); | |
1534 | int i; | |
358b8382 | 1535 | int err; |
3d249d4c JP |
1536 | |
1537 | team->dev = dev; | |
61dc3461 | 1538 | mutex_init(&team->lock); |
d299cd51 | 1539 | team_set_no_mode(team); |
3d249d4c | 1540 | |
1c213bd2 | 1541 | team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); |
3d249d4c JP |
1542 | if (!team->pcpu_stats) |
1543 | return -ENOMEM; | |
1544 | ||
1545 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) | |
19a0b58e | 1546 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
3d249d4c | 1547 | INIT_LIST_HEAD(&team->port_list); |
8ff5105a JP |
1548 | err = team_queue_override_init(team); |
1549 | if (err) | |
1550 | goto err_team_queue_override_init; | |
3d249d4c JP |
1551 | |
1552 | team_adjust_ops(team); | |
1553 | ||
1554 | INIT_LIST_HEAD(&team->option_list); | |
80f7c668 | 1555 | INIT_LIST_HEAD(&team->option_inst_list); |
fc423ff0 JP |
1556 | |
1557 | team_notify_peers_init(team); | |
492b200e | 1558 | team_mcast_rejoin_init(team); |
fc423ff0 | 1559 | |
358b8382 JP |
1560 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
1561 | if (err) | |
1562 | goto err_options_register; | |
3d249d4c JP |
1563 | netif_carrier_off(dev); |
1564 | ||
6c85f2bd JP |
1565 | team_set_lockdep_class(dev); |
1566 | ||
3d249d4c | 1567 | return 0; |
358b8382 JP |
1568 | |
1569 | err_options_register: | |
492b200e | 1570 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1571 | team_notify_peers_fini(team); |
8ff5105a JP |
1572 | team_queue_override_fini(team); |
1573 | err_team_queue_override_init: | |
358b8382 JP |
1574 | free_percpu(team->pcpu_stats); |
1575 | ||
1576 | return err; | |
3d249d4c JP |
1577 | } |
1578 | ||
1579 | static void team_uninit(struct net_device *dev) | |
1580 | { | |
1581 | struct team *team = netdev_priv(dev); | |
1582 | struct team_port *port; | |
1583 | struct team_port *tmp; | |
1584 | ||
61dc3461 | 1585 | mutex_lock(&team->lock); |
3d249d4c JP |
1586 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
1587 | team_port_del(team, port->dev); | |
1588 | ||
1589 | __team_change_mode(team, NULL); /* cleanup */ | |
1590 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); | |
492b200e | 1591 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1592 | team_notify_peers_fini(team); |
8ff5105a | 1593 | team_queue_override_fini(team); |
61dc3461 | 1594 | mutex_unlock(&team->lock); |
3d249d4c JP |
1595 | } |
1596 | ||
1597 | static void team_destructor(struct net_device *dev) | |
1598 | { | |
1599 | struct team *team = netdev_priv(dev); | |
1600 | ||
1601 | free_percpu(team->pcpu_stats); | |
1602 | free_netdev(dev); | |
1603 | } | |
1604 | ||
1605 | static int team_open(struct net_device *dev) | |
1606 | { | |
3d249d4c JP |
1607 | return 0; |
1608 | } | |
1609 | ||
1610 | static int team_close(struct net_device *dev) | |
1611 | { | |
3d249d4c JP |
1612 | return 0; |
1613 | } | |
1614 | ||
1615 | /* | |
1616 | * note: already called with rcu_read_lock | |
1617 | */ | |
1618 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) | |
1619 | { | |
1620 | struct team *team = netdev_priv(dev); | |
8ff5105a | 1621 | bool tx_success; |
3d249d4c JP |
1622 | unsigned int len = skb->len; |
1623 | ||
8ff5105a JP |
1624 | tx_success = team_queue_override_transmit(team, skb); |
1625 | if (!tx_success) | |
1626 | tx_success = team->ops.transmit(team, skb); | |
3d249d4c JP |
1627 | if (tx_success) { |
1628 | struct team_pcpu_stats *pcpu_stats; | |
1629 | ||
1630 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
1631 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1632 | pcpu_stats->tx_packets++; | |
1633 | pcpu_stats->tx_bytes += len; | |
1634 | u64_stats_update_end(&pcpu_stats->syncp); | |
1635 | } else { | |
1636 | this_cpu_inc(team->pcpu_stats->tx_dropped); | |
1637 | } | |
1638 | ||
1639 | return NETDEV_TX_OK; | |
1640 | } | |
1641 | ||
f663dd9a | 1642 | static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 1643 | void *accel_priv, select_queue_fallback_t fallback) |
6c85f2bd JP |
1644 | { |
1645 | /* | |
1646 | * This helper function exists to help dev_pick_tx get the correct | |
1647 | * destination queue. Using a helper function skips a call to | |
1648 | * skb_tx_hash and will put the skbs in the queue we expect on their | |
1649 | * way down to the team driver. | |
1650 | */ | |
1651 | u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; | |
1652 | ||
1653 | /* | |
1654 | * Save the original txq to restore before passing to the driver | |
1655 | */ | |
1656 | qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; | |
1657 | ||
1658 | if (unlikely(txq >= dev->real_num_tx_queues)) { | |
1659 | do { | |
1660 | txq -= dev->real_num_tx_queues; | |
1661 | } while (txq >= dev->real_num_tx_queues); | |
1662 | } | |
1663 | return txq; | |
1664 | } | |
1665 | ||
3d249d4c JP |
1666 | static void team_change_rx_flags(struct net_device *dev, int change) |
1667 | { | |
1668 | struct team *team = netdev_priv(dev); | |
1669 | struct team_port *port; | |
1670 | int inc; | |
1671 | ||
1672 | rcu_read_lock(); | |
1673 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1674 | if (change & IFF_PROMISC) { | |
1675 | inc = dev->flags & IFF_PROMISC ? 1 : -1; | |
1676 | dev_set_promiscuity(port->dev, inc); | |
1677 | } | |
1678 | if (change & IFF_ALLMULTI) { | |
1679 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; | |
1680 | dev_set_allmulti(port->dev, inc); | |
1681 | } | |
1682 | } | |
1683 | rcu_read_unlock(); | |
1684 | } | |
1685 | ||
1686 | static void team_set_rx_mode(struct net_device *dev) | |
1687 | { | |
1688 | struct team *team = netdev_priv(dev); | |
1689 | struct team_port *port; | |
1690 | ||
1691 | rcu_read_lock(); | |
1692 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
72b27032 VY |
1693 | dev_uc_sync_multiple(port->dev, dev); |
1694 | dev_mc_sync_multiple(port->dev, dev); | |
3d249d4c JP |
1695 | } |
1696 | rcu_read_unlock(); | |
1697 | } | |
1698 | ||
1699 | static int team_set_mac_address(struct net_device *dev, void *p) | |
1700 | { | |
1d76efe1 | 1701 | struct sockaddr *addr = p; |
3d249d4c JP |
1702 | struct team *team = netdev_priv(dev); |
1703 | struct team_port *port; | |
3d249d4c | 1704 | |
1d76efe1 JP |
1705 | if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) |
1706 | return -EADDRNOTAVAIL; | |
1707 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
3d249d4c JP |
1708 | rcu_read_lock(); |
1709 | list_for_each_entry_rcu(port, &team->port_list, list) | |
1d76efe1 JP |
1710 | if (team->ops.port_change_dev_addr) |
1711 | team->ops.port_change_dev_addr(team, port); | |
3d249d4c JP |
1712 | rcu_read_unlock(); |
1713 | return 0; | |
1714 | } | |
1715 | ||
1716 | static int team_change_mtu(struct net_device *dev, int new_mtu) | |
1717 | { | |
1718 | struct team *team = netdev_priv(dev); | |
1719 | struct team_port *port; | |
1720 | int err; | |
1721 | ||
1722 | /* | |
1723 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1724 | * to traverse list in reverse under rcu_read_lock | |
1725 | */ | |
61dc3461 | 1726 | mutex_lock(&team->lock); |
9d0d68fa | 1727 | team->port_mtu_change_allowed = true; |
3d249d4c JP |
1728 | list_for_each_entry(port, &team->port_list, list) { |
1729 | err = dev_set_mtu(port->dev, new_mtu); | |
1730 | if (err) { | |
1731 | netdev_err(dev, "Device %s failed to change mtu", | |
1732 | port->dev->name); | |
1733 | goto unwind; | |
1734 | } | |
1735 | } | |
9d0d68fa | 1736 | team->port_mtu_change_allowed = false; |
61dc3461 | 1737 | mutex_unlock(&team->lock); |
3d249d4c JP |
1738 | |
1739 | dev->mtu = new_mtu; | |
1740 | ||
1741 | return 0; | |
1742 | ||
1743 | unwind: | |
1744 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1745 | dev_set_mtu(port->dev, dev->mtu); | |
9d0d68fa | 1746 | team->port_mtu_change_allowed = false; |
61dc3461 | 1747 | mutex_unlock(&team->lock); |
3d249d4c JP |
1748 | |
1749 | return err; | |
1750 | } | |
1751 | ||
1752 | static struct rtnl_link_stats64 * | |
1753 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
1754 | { | |
1755 | struct team *team = netdev_priv(dev); | |
1756 | struct team_pcpu_stats *p; | |
1757 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; | |
1758 | u32 rx_dropped = 0, tx_dropped = 0; | |
1759 | unsigned int start; | |
1760 | int i; | |
1761 | ||
1762 | for_each_possible_cpu(i) { | |
1763 | p = per_cpu_ptr(team->pcpu_stats, i); | |
1764 | do { | |
57a7744e | 1765 | start = u64_stats_fetch_begin_irq(&p->syncp); |
3d249d4c JP |
1766 | rx_packets = p->rx_packets; |
1767 | rx_bytes = p->rx_bytes; | |
1768 | rx_multicast = p->rx_multicast; | |
1769 | tx_packets = p->tx_packets; | |
1770 | tx_bytes = p->tx_bytes; | |
57a7744e | 1771 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
3d249d4c JP |
1772 | |
1773 | stats->rx_packets += rx_packets; | |
1774 | stats->rx_bytes += rx_bytes; | |
1775 | stats->multicast += rx_multicast; | |
1776 | stats->tx_packets += tx_packets; | |
1777 | stats->tx_bytes += tx_bytes; | |
1778 | /* | |
1779 | * rx_dropped & tx_dropped are u32, updated | |
1780 | * without syncp protection. | |
1781 | */ | |
1782 | rx_dropped += p->rx_dropped; | |
1783 | tx_dropped += p->tx_dropped; | |
1784 | } | |
1785 | stats->rx_dropped = rx_dropped; | |
1786 | stats->tx_dropped = tx_dropped; | |
1787 | return stats; | |
1788 | } | |
1789 | ||
80d5c368 | 1790 | static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1791 | { |
1792 | struct team *team = netdev_priv(dev); | |
1793 | struct team_port *port; | |
87002b03 | 1794 | int err; |
3d249d4c | 1795 | |
87002b03 JP |
1796 | /* |
1797 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1798 | * to traverse list in reverse under rcu_read_lock | |
1799 | */ | |
1800 | mutex_lock(&team->lock); | |
1801 | list_for_each_entry(port, &team->port_list, list) { | |
80d5c368 | 1802 | err = vlan_vid_add(port->dev, proto, vid); |
87002b03 JP |
1803 | if (err) |
1804 | goto unwind; | |
3d249d4c | 1805 | } |
87002b03 | 1806 | mutex_unlock(&team->lock); |
8e586137 JP |
1807 | |
1808 | return 0; | |
87002b03 JP |
1809 | |
1810 | unwind: | |
1811 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
80d5c368 | 1812 | vlan_vid_del(port->dev, proto, vid); |
87002b03 JP |
1813 | mutex_unlock(&team->lock); |
1814 | ||
1815 | return err; | |
3d249d4c JP |
1816 | } |
1817 | ||
80d5c368 | 1818 | static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1819 | { |
1820 | struct team *team = netdev_priv(dev); | |
1821 | struct team_port *port; | |
1822 | ||
1823 | rcu_read_lock(); | |
87002b03 | 1824 | list_for_each_entry_rcu(port, &team->port_list, list) |
80d5c368 | 1825 | vlan_vid_del(port->dev, proto, vid); |
3d249d4c | 1826 | rcu_read_unlock(); |
8e586137 JP |
1827 | |
1828 | return 0; | |
3d249d4c JP |
1829 | } |
1830 | ||
bd2d0837 JP |
1831 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1832 | static void team_poll_controller(struct net_device *dev) | |
1833 | { | |
1834 | } | |
1835 | ||
1836 | static void __team_netpoll_cleanup(struct team *team) | |
1837 | { | |
1838 | struct team_port *port; | |
1839 | ||
1840 | list_for_each_entry(port, &team->port_list, list) | |
1841 | team_port_disable_netpoll(port); | |
1842 | } | |
1843 | ||
1844 | static void team_netpoll_cleanup(struct net_device *dev) | |
1845 | { | |
1846 | struct team *team = netdev_priv(dev); | |
1847 | ||
1848 | mutex_lock(&team->lock); | |
1849 | __team_netpoll_cleanup(team); | |
1850 | mutex_unlock(&team->lock); | |
1851 | } | |
1852 | ||
1853 | static int team_netpoll_setup(struct net_device *dev, | |
a8779ec1 | 1854 | struct netpoll_info *npifo) |
bd2d0837 JP |
1855 | { |
1856 | struct team *team = netdev_priv(dev); | |
1857 | struct team_port *port; | |
3324d024 | 1858 | int err = 0; |
bd2d0837 JP |
1859 | |
1860 | mutex_lock(&team->lock); | |
1861 | list_for_each_entry(port, &team->port_list, list) { | |
a8779ec1 | 1862 | err = team_port_enable_netpoll(team, port); |
bd2d0837 JP |
1863 | if (err) { |
1864 | __team_netpoll_cleanup(team); | |
1865 | break; | |
1866 | } | |
1867 | } | |
1868 | mutex_unlock(&team->lock); | |
1869 | return err; | |
1870 | } | |
1871 | #endif | |
1872 | ||
3d249d4c JP |
1873 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev) |
1874 | { | |
1875 | struct team *team = netdev_priv(dev); | |
1876 | int err; | |
1877 | ||
61dc3461 | 1878 | mutex_lock(&team->lock); |
3d249d4c | 1879 | err = team_port_add(team, port_dev); |
61dc3461 | 1880 | mutex_unlock(&team->lock); |
3d249d4c JP |
1881 | return err; |
1882 | } | |
1883 | ||
1884 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) | |
1885 | { | |
1886 | struct team *team = netdev_priv(dev); | |
1887 | int err; | |
1888 | ||
61dc3461 | 1889 | mutex_lock(&team->lock); |
3d249d4c | 1890 | err = team_port_del(team, port_dev); |
61dc3461 | 1891 | mutex_unlock(&team->lock); |
3d249d4c JP |
1892 | return err; |
1893 | } | |
1894 | ||
234a8fd4 JP |
1895 | static netdev_features_t team_fix_features(struct net_device *dev, |
1896 | netdev_features_t features) | |
1897 | { | |
1898 | struct team_port *port; | |
1899 | struct team *team = netdev_priv(dev); | |
1900 | netdev_features_t mask; | |
1901 | ||
1902 | mask = features; | |
1903 | features &= ~NETIF_F_ONE_FOR_ALL; | |
1904 | features |= NETIF_F_ALL_FOR_ALL; | |
1905 | ||
1906 | rcu_read_lock(); | |
1907 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1908 | features = netdev_increment_features(features, | |
1909 | port->dev->features, | |
1910 | mask); | |
1911 | } | |
1912 | rcu_read_unlock(); | |
1913 | return features; | |
1914 | } | |
1915 | ||
4cafe373 FL |
1916 | static int team_change_carrier(struct net_device *dev, bool new_carrier) |
1917 | { | |
e185483e FL |
1918 | struct team *team = netdev_priv(dev); |
1919 | ||
1920 | team->user_carrier_enabled = true; | |
1921 | ||
4cafe373 FL |
1922 | if (new_carrier) |
1923 | netif_carrier_on(dev); | |
1924 | else | |
1925 | netif_carrier_off(dev); | |
1926 | return 0; | |
1927 | } | |
1928 | ||
3d249d4c JP |
1929 | static const struct net_device_ops team_netdev_ops = { |
1930 | .ndo_init = team_init, | |
1931 | .ndo_uninit = team_uninit, | |
1932 | .ndo_open = team_open, | |
1933 | .ndo_stop = team_close, | |
1934 | .ndo_start_xmit = team_xmit, | |
6c85f2bd | 1935 | .ndo_select_queue = team_select_queue, |
3d249d4c JP |
1936 | .ndo_change_rx_flags = team_change_rx_flags, |
1937 | .ndo_set_rx_mode = team_set_rx_mode, | |
1938 | .ndo_set_mac_address = team_set_mac_address, | |
1939 | .ndo_change_mtu = team_change_mtu, | |
1940 | .ndo_get_stats64 = team_get_stats64, | |
1941 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, | |
1942 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, | |
bd2d0837 JP |
1943 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1944 | .ndo_poll_controller = team_poll_controller, | |
1945 | .ndo_netpoll_setup = team_netpoll_setup, | |
1946 | .ndo_netpoll_cleanup = team_netpoll_cleanup, | |
1947 | #endif | |
3d249d4c JP |
1948 | .ndo_add_slave = team_add_slave, |
1949 | .ndo_del_slave = team_del_slave, | |
234a8fd4 | 1950 | .ndo_fix_features = team_fix_features, |
4cafe373 | 1951 | .ndo_change_carrier = team_change_carrier, |
3d249d4c JP |
1952 | }; |
1953 | ||
7f51c587 FL |
1954 | /*********************** |
1955 | * ethtool interface | |
1956 | ***********************/ | |
1957 | ||
1958 | static void team_ethtool_get_drvinfo(struct net_device *dev, | |
1959 | struct ethtool_drvinfo *drvinfo) | |
1960 | { | |
3066af58 FL |
1961 | strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
1962 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
7f51c587 FL |
1963 | } |
1964 | ||
1965 | static const struct ethtool_ops team_ethtool_ops = { | |
1966 | .get_drvinfo = team_ethtool_get_drvinfo, | |
1967 | .get_link = ethtool_op_get_link, | |
1968 | }; | |
3d249d4c JP |
1969 | |
1970 | /*********************** | |
1971 | * rt netlink interface | |
1972 | ***********************/ | |
1973 | ||
1d76efe1 JP |
1974 | static void team_setup_by_port(struct net_device *dev, |
1975 | struct net_device *port_dev) | |
1976 | { | |
1977 | dev->header_ops = port_dev->header_ops; | |
1978 | dev->type = port_dev->type; | |
1979 | dev->hard_header_len = port_dev->hard_header_len; | |
1980 | dev->addr_len = port_dev->addr_len; | |
1981 | dev->mtu = port_dev->mtu; | |
1982 | memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); | |
93af7357 | 1983 | eth_hw_addr_inherit(dev, port_dev); |
1d76efe1 JP |
1984 | } |
1985 | ||
1986 | static int team_dev_type_check_change(struct net_device *dev, | |
1987 | struct net_device *port_dev) | |
1988 | { | |
1989 | struct team *team = netdev_priv(dev); | |
1990 | char *portname = port_dev->name; | |
1991 | int err; | |
1992 | ||
1993 | if (dev->type == port_dev->type) | |
1994 | return 0; | |
1995 | if (!list_empty(&team->port_list)) { | |
1996 | netdev_err(dev, "Device %s is of different type\n", portname); | |
1997 | return -EBUSY; | |
1998 | } | |
1999 | err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); | |
2000 | err = notifier_to_errno(err); | |
2001 | if (err) { | |
2002 | netdev_err(dev, "Refused to change device type\n"); | |
2003 | return err; | |
2004 | } | |
2005 | dev_uc_flush(dev); | |
2006 | dev_mc_flush(dev); | |
2007 | team_setup_by_port(dev, port_dev); | |
2008 | call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); | |
2009 | return 0; | |
2010 | } | |
2011 | ||
3d249d4c JP |
2012 | static void team_setup(struct net_device *dev) |
2013 | { | |
2014 | ether_setup(dev); | |
2015 | ||
2016 | dev->netdev_ops = &team_netdev_ops; | |
7f51c587 | 2017 | dev->ethtool_ops = &team_ethtool_ops; |
3d249d4c JP |
2018 | dev->destructor = team_destructor; |
2019 | dev->tx_queue_len = 0; | |
2020 | dev->flags |= IFF_MULTICAST; | |
2021 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); | |
2022 | ||
2023 | /* | |
2024 | * Indicate we support unicast address filtering. That way core won't | |
2025 | * bring us to promisc mode in case a unicast addr is added. | |
2026 | * Let this up to underlay drivers. | |
2027 | */ | |
5a1d1c8c | 2028 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
3d249d4c JP |
2029 | |
2030 | dev->features |= NETIF_F_LLTX; | |
2031 | dev->features |= NETIF_F_GRO; | |
99301ba1 WC |
2032 | |
2033 | /* Don't allow team devices to change network namespaces. */ | |
2034 | dev->features |= NETIF_F_NETNS_LOCAL; | |
2035 | ||
3ed71471 | 2036 | dev->hw_features = TEAM_VLAN_FEATURES | |
f646968f PM |
2037 | NETIF_F_HW_VLAN_CTAG_TX | |
2038 | NETIF_F_HW_VLAN_CTAG_RX | | |
2039 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
3d249d4c | 2040 | |
3ed71471 | 2041 | dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM); |
3d249d4c JP |
2042 | dev->features |= dev->hw_features; |
2043 | } | |
2044 | ||
2045 | static int team_newlink(struct net *src_net, struct net_device *dev, | |
2046 | struct nlattr *tb[], struct nlattr *data[]) | |
2047 | { | |
3d249d4c | 2048 | if (tb[IFLA_ADDRESS] == NULL) |
7ce5d222 | 2049 | eth_hw_addr_random(dev); |
3d249d4c | 2050 | |
ff204cce | 2051 | return register_netdevice(dev); |
3d249d4c JP |
2052 | } |
2053 | ||
2054 | static int team_validate(struct nlattr *tb[], struct nlattr *data[]) | |
2055 | { | |
2056 | if (tb[IFLA_ADDRESS]) { | |
2057 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
2058 | return -EINVAL; | |
2059 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
2060 | return -EADDRNOTAVAIL; | |
2061 | } | |
2062 | return 0; | |
2063 | } | |
2064 | ||
6c85f2bd JP |
2065 | static unsigned int team_get_num_tx_queues(void) |
2066 | { | |
2067 | return TEAM_DEFAULT_NUM_TX_QUEUES; | |
2068 | } | |
2069 | ||
2070 | static unsigned int team_get_num_rx_queues(void) | |
2071 | { | |
2072 | return TEAM_DEFAULT_NUM_RX_QUEUES; | |
2073 | } | |
2074 | ||
3d249d4c | 2075 | static struct rtnl_link_ops team_link_ops __read_mostly = { |
6c85f2bd JP |
2076 | .kind = DRV_NAME, |
2077 | .priv_size = sizeof(struct team), | |
2078 | .setup = team_setup, | |
2079 | .newlink = team_newlink, | |
2080 | .validate = team_validate, | |
2081 | .get_num_tx_queues = team_get_num_tx_queues, | |
2082 | .get_num_rx_queues = team_get_num_rx_queues, | |
3d249d4c JP |
2083 | }; |
2084 | ||
2085 | ||
2086 | /*********************************** | |
2087 | * Generic netlink custom interface | |
2088 | ***********************************/ | |
2089 | ||
2090 | static struct genl_family team_nl_family = { | |
2091 | .id = GENL_ID_GENERATE, | |
2092 | .name = TEAM_GENL_NAME, | |
2093 | .version = TEAM_GENL_VERSION, | |
2094 | .maxattr = TEAM_ATTR_MAX, | |
2095 | .netnsok = true, | |
2096 | }; | |
2097 | ||
2098 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { | |
2099 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2100 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, | |
2101 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, | |
2102 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, | |
2103 | }; | |
2104 | ||
2105 | static const struct nla_policy | |
2106 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { | |
2107 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2108 | [TEAM_ATTR_OPTION_NAME] = { | |
2109 | .type = NLA_STRING, | |
2110 | .len = TEAM_STRING_MAX_LEN, | |
2111 | }, | |
2112 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, | |
2113 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, | |
2615598f | 2114 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
3d249d4c JP |
2115 | }; |
2116 | ||
2117 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) | |
2118 | { | |
2119 | struct sk_buff *msg; | |
2120 | void *hdr; | |
2121 | int err; | |
2122 | ||
58050fce | 2123 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
2124 | if (!msg) |
2125 | return -ENOMEM; | |
2126 | ||
15e47304 | 2127 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, |
3d249d4c | 2128 | &team_nl_family, 0, TEAM_CMD_NOOP); |
a326e6dd WY |
2129 | if (!hdr) { |
2130 | err = -EMSGSIZE; | |
3d249d4c JP |
2131 | goto err_msg_put; |
2132 | } | |
2133 | ||
2134 | genlmsg_end(msg, hdr); | |
2135 | ||
15e47304 | 2136 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); |
3d249d4c JP |
2137 | |
2138 | err_msg_put: | |
2139 | nlmsg_free(msg); | |
2140 | ||
2141 | return err; | |
2142 | } | |
2143 | ||
2144 | /* | |
2145 | * Netlink cmd functions should be locked by following two functions. | |
8c0713a5 | 2146 | * Since dev gets held here, that ensures dev won't disappear in between. |
3d249d4c JP |
2147 | */ |
2148 | static struct team *team_nl_team_get(struct genl_info *info) | |
2149 | { | |
2150 | struct net *net = genl_info_net(info); | |
2151 | int ifindex; | |
2152 | struct net_device *dev; | |
2153 | struct team *team; | |
2154 | ||
2155 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) | |
2156 | return NULL; | |
2157 | ||
2158 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); | |
8c0713a5 | 2159 | dev = dev_get_by_index(net, ifindex); |
3d249d4c | 2160 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
8c0713a5 JP |
2161 | if (dev) |
2162 | dev_put(dev); | |
3d249d4c JP |
2163 | return NULL; |
2164 | } | |
2165 | ||
2166 | team = netdev_priv(dev); | |
61dc3461 | 2167 | mutex_lock(&team->lock); |
3d249d4c JP |
2168 | return team; |
2169 | } | |
2170 | ||
2171 | static void team_nl_team_put(struct team *team) | |
2172 | { | |
61dc3461 | 2173 | mutex_unlock(&team->lock); |
8c0713a5 | 2174 | dev_put(team->dev); |
3d249d4c JP |
2175 | } |
2176 | ||
9b00cf2d | 2177 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
15e47304 | 2178 | struct team *team, u32 portid); |
9b00cf2d | 2179 | |
15e47304 | 2180 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) |
9b00cf2d | 2181 | { |
15e47304 | 2182 | return genlmsg_unicast(dev_net(team->dev), skb, portid); |
9b00cf2d JP |
2183 | } |
2184 | ||
01048d9a JP |
2185 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
2186 | struct team_option_inst *opt_inst) | |
2187 | { | |
2188 | struct nlattr *option_item; | |
2189 | struct team_option *option = opt_inst->option; | |
9b00cf2d | 2190 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
01048d9a JP |
2191 | struct team_gsetter_ctx ctx; |
2192 | int err; | |
2193 | ||
9b00cf2d JP |
2194 | ctx.info = opt_inst_info; |
2195 | err = team_option_get(team, opt_inst, &ctx); | |
2196 | if (err) | |
2197 | return err; | |
2198 | ||
01048d9a JP |
2199 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
2200 | if (!option_item) | |
9b00cf2d | 2201 | return -EMSGSIZE; |
01048d9a | 2202 | |
9b00cf2d JP |
2203 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
2204 | goto nest_cancel; | |
01048d9a JP |
2205 | if (opt_inst_info->port && |
2206 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, | |
2207 | opt_inst_info->port->dev->ifindex)) | |
9b00cf2d | 2208 | goto nest_cancel; |
01048d9a JP |
2209 | if (opt_inst->option->array_size && |
2210 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, | |
2211 | opt_inst_info->array_index)) | |
9b00cf2d | 2212 | goto nest_cancel; |
01048d9a JP |
2213 | |
2214 | switch (option->type) { | |
2215 | case TEAM_OPTION_TYPE_U32: | |
2216 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) | |
9b00cf2d | 2217 | goto nest_cancel; |
01048d9a | 2218 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
9b00cf2d | 2219 | goto nest_cancel; |
01048d9a JP |
2220 | break; |
2221 | case TEAM_OPTION_TYPE_STRING: | |
2222 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) | |
9b00cf2d | 2223 | goto nest_cancel; |
01048d9a JP |
2224 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
2225 | ctx.data.str_val)) | |
9b00cf2d | 2226 | goto nest_cancel; |
01048d9a JP |
2227 | break; |
2228 | case TEAM_OPTION_TYPE_BINARY: | |
2229 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) | |
9b00cf2d | 2230 | goto nest_cancel; |
01048d9a JP |
2231 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
2232 | ctx.data.bin_val.ptr)) | |
9b00cf2d | 2233 | goto nest_cancel; |
01048d9a JP |
2234 | break; |
2235 | case TEAM_OPTION_TYPE_BOOL: | |
2236 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) | |
9b00cf2d | 2237 | goto nest_cancel; |
01048d9a JP |
2238 | if (ctx.data.bool_val && |
2239 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) | |
9b00cf2d | 2240 | goto nest_cancel; |
01048d9a | 2241 | break; |
69821638 JP |
2242 | case TEAM_OPTION_TYPE_S32: |
2243 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) | |
2244 | goto nest_cancel; | |
2245 | if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) | |
2246 | goto nest_cancel; | |
2247 | break; | |
01048d9a JP |
2248 | default: |
2249 | BUG(); | |
2250 | } | |
9b00cf2d JP |
2251 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
2252 | goto nest_cancel; | |
2253 | if (opt_inst->changed) { | |
2254 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) | |
2255 | goto nest_cancel; | |
2256 | opt_inst->changed = false; | |
2257 | } | |
01048d9a JP |
2258 | nla_nest_end(skb, option_item); |
2259 | return 0; | |
2260 | ||
9b00cf2d JP |
2261 | nest_cancel: |
2262 | nla_nest_cancel(skb, option_item); | |
2263 | return -EMSGSIZE; | |
2264 | } | |
2265 | ||
2266 | static int __send_and_alloc_skb(struct sk_buff **pskb, | |
15e47304 | 2267 | struct team *team, u32 portid, |
9b00cf2d JP |
2268 | team_nl_send_func_t *send_func) |
2269 | { | |
2270 | int err; | |
2271 | ||
2272 | if (*pskb) { | |
15e47304 | 2273 | err = send_func(*pskb, team, portid); |
9b00cf2d JP |
2274 | if (err) |
2275 | return err; | |
2276 | } | |
58050fce | 2277 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9b00cf2d JP |
2278 | if (!*pskb) |
2279 | return -ENOMEM; | |
2280 | return 0; | |
01048d9a JP |
2281 | } |
2282 | ||
15e47304 | 2283 | static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, |
9b00cf2d | 2284 | int flags, team_nl_send_func_t *send_func, |
01048d9a | 2285 | struct list_head *sel_opt_inst_list) |
3d249d4c JP |
2286 | { |
2287 | struct nlattr *option_list; | |
9b00cf2d | 2288 | struct nlmsghdr *nlh; |
3d249d4c | 2289 | void *hdr; |
80f7c668 JP |
2290 | struct team_option_inst *opt_inst; |
2291 | int err; | |
9b00cf2d JP |
2292 | struct sk_buff *skb = NULL; |
2293 | bool incomplete; | |
2294 | int i; | |
3d249d4c | 2295 | |
9b00cf2d JP |
2296 | opt_inst = list_first_entry(sel_opt_inst_list, |
2297 | struct team_option_inst, tmp_list); | |
2298 | ||
2299 | start_again: | |
15e47304 | 2300 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2301 | if (err) |
2302 | return err; | |
2303 | ||
15e47304 | 2304 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
3d249d4c | 2305 | TEAM_CMD_OPTIONS_GET); |
a326e6dd WY |
2306 | if (!hdr) |
2307 | return -EMSGSIZE; | |
3d249d4c | 2308 | |
86ebb02d DM |
2309 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2310 | goto nla_put_failure; | |
3d249d4c JP |
2311 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
2312 | if (!option_list) | |
75db986a | 2313 | goto nla_put_failure; |
3d249d4c | 2314 | |
9b00cf2d JP |
2315 | i = 0; |
2316 | incomplete = false; | |
2317 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { | |
01048d9a | 2318 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
9b00cf2d JP |
2319 | if (err) { |
2320 | if (err == -EMSGSIZE) { | |
2321 | if (!i) | |
2322 | goto errout; | |
2323 | incomplete = true; | |
2324 | break; | |
2325 | } | |
01048d9a | 2326 | goto errout; |
9b00cf2d JP |
2327 | } |
2328 | i++; | |
3d249d4c JP |
2329 | } |
2330 | ||
2331 | nla_nest_end(skb, option_list); | |
9b00cf2d JP |
2332 | genlmsg_end(skb, hdr); |
2333 | if (incomplete) | |
2334 | goto start_again; | |
2335 | ||
2336 | send_done: | |
15e47304 | 2337 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
9b00cf2d | 2338 | if (!nlh) { |
15e47304 | 2339 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2340 | if (err) |
2341 | goto errout; | |
2342 | goto send_done; | |
2343 | } | |
2344 | ||
15e47304 | 2345 | return send_func(skb, team, portid); |
3d249d4c JP |
2346 | |
2347 | nla_put_failure: | |
80f7c668 JP |
2348 | err = -EMSGSIZE; |
2349 | errout: | |
3d249d4c | 2350 | genlmsg_cancel(skb, hdr); |
9b00cf2d | 2351 | nlmsg_free(skb); |
80f7c668 | 2352 | return err; |
3d249d4c JP |
2353 | } |
2354 | ||
3d249d4c JP |
2355 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
2356 | { | |
2357 | struct team *team; | |
9b00cf2d | 2358 | struct team_option_inst *opt_inst; |
3d249d4c | 2359 | int err; |
9b00cf2d | 2360 | LIST_HEAD(sel_opt_inst_list); |
3d249d4c JP |
2361 | |
2362 | team = team_nl_team_get(info); | |
2363 | if (!team) | |
2364 | return -EINVAL; | |
2365 | ||
9b00cf2d JP |
2366 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
2367 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
15e47304 | 2368 | err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, |
9b00cf2d JP |
2369 | NLM_F_ACK, team_nl_send_unicast, |
2370 | &sel_opt_inst_list); | |
3d249d4c JP |
2371 | |
2372 | team_nl_team_put(team); | |
2373 | ||
2374 | return err; | |
2375 | } | |
2376 | ||
2fcdb2c9 JP |
2377 | static int team_nl_send_event_options_get(struct team *team, |
2378 | struct list_head *sel_opt_inst_list); | |
2379 | ||
3d249d4c JP |
2380 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
2381 | { | |
2382 | struct team *team; | |
2383 | int err = 0; | |
2384 | int i; | |
2385 | struct nlattr *nl_option; | |
2fcdb2c9 | 2386 | LIST_HEAD(opt_inst_list); |
3d249d4c JP |
2387 | |
2388 | team = team_nl_team_get(info); | |
2389 | if (!team) | |
2390 | return -EINVAL; | |
2391 | ||
2392 | err = -EINVAL; | |
2393 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { | |
2394 | err = -EINVAL; | |
2395 | goto team_put; | |
2396 | } | |
2397 | ||
2398 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { | |
80f7c668 | 2399 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
b1303326 | 2400 | struct nlattr *attr; |
14f066ba | 2401 | struct nlattr *attr_data; |
3d249d4c | 2402 | enum team_option_type opt_type; |
80f7c668 | 2403 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
b1303326 JP |
2404 | u32 opt_array_index = 0; |
2405 | bool opt_is_array = false; | |
80f7c668 | 2406 | struct team_option_inst *opt_inst; |
3d249d4c JP |
2407 | char *opt_name; |
2408 | bool opt_found = false; | |
2409 | ||
2410 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { | |
2411 | err = -EINVAL; | |
2412 | goto team_put; | |
2413 | } | |
80f7c668 | 2414 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
3d249d4c JP |
2415 | nl_option, team_nl_option_policy); |
2416 | if (err) | |
2417 | goto team_put; | |
80f7c668 | 2418 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
14f066ba | 2419 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
3d249d4c JP |
2420 | err = -EINVAL; |
2421 | goto team_put; | |
2422 | } | |
80f7c668 | 2423 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
3d249d4c JP |
2424 | case NLA_U32: |
2425 | opt_type = TEAM_OPTION_TYPE_U32; | |
2426 | break; | |
2427 | case NLA_STRING: | |
2428 | opt_type = TEAM_OPTION_TYPE_STRING; | |
2429 | break; | |
2615598f JP |
2430 | case NLA_BINARY: |
2431 | opt_type = TEAM_OPTION_TYPE_BINARY; | |
2432 | break; | |
14f066ba JP |
2433 | case NLA_FLAG: |
2434 | opt_type = TEAM_OPTION_TYPE_BOOL; | |
2435 | break; | |
69821638 JP |
2436 | case NLA_S32: |
2437 | opt_type = TEAM_OPTION_TYPE_S32; | |
2438 | break; | |
3d249d4c JP |
2439 | default: |
2440 | goto team_put; | |
2441 | } | |
2442 | ||
14f066ba JP |
2443 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
2444 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { | |
2445 | err = -EINVAL; | |
2446 | goto team_put; | |
2447 | } | |
2448 | ||
80f7c668 | 2449 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
b1303326 JP |
2450 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
2451 | if (attr) | |
2452 | opt_port_ifindex = nla_get_u32(attr); | |
2453 | ||
2454 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; | |
2455 | if (attr) { | |
2456 | opt_is_array = true; | |
2457 | opt_array_index = nla_get_u32(attr); | |
2458 | } | |
80f7c668 JP |
2459 | |
2460 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
2461 | struct team_option *option = opt_inst->option; | |
80f7c668 | 2462 | struct team_gsetter_ctx ctx; |
85d59a87 | 2463 | struct team_option_inst_info *opt_inst_info; |
80f7c668 | 2464 | int tmp_ifindex; |
3d249d4c | 2465 | |
85d59a87 JP |
2466 | opt_inst_info = &opt_inst->info; |
2467 | tmp_ifindex = opt_inst_info->port ? | |
2468 | opt_inst_info->port->dev->ifindex : 0; | |
3d249d4c | 2469 | if (option->type != opt_type || |
80f7c668 | 2470 | strcmp(option->name, opt_name) || |
b1303326 JP |
2471 | tmp_ifindex != opt_port_ifindex || |
2472 | (option->array_size && !opt_is_array) || | |
85d59a87 | 2473 | opt_inst_info->array_index != opt_array_index) |
3d249d4c JP |
2474 | continue; |
2475 | opt_found = true; | |
85d59a87 | 2476 | ctx.info = opt_inst_info; |
3d249d4c JP |
2477 | switch (opt_type) { |
2478 | case TEAM_OPTION_TYPE_U32: | |
14f066ba | 2479 | ctx.data.u32_val = nla_get_u32(attr_data); |
3d249d4c JP |
2480 | break; |
2481 | case TEAM_OPTION_TYPE_STRING: | |
14f066ba | 2482 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
2615598f JP |
2483 | err = -EINVAL; |
2484 | goto team_put; | |
2485 | } | |
14f066ba | 2486 | ctx.data.str_val = nla_data(attr_data); |
3d249d4c | 2487 | break; |
2615598f | 2488 | case TEAM_OPTION_TYPE_BINARY: |
14f066ba JP |
2489 | ctx.data.bin_val.len = nla_len(attr_data); |
2490 | ctx.data.bin_val.ptr = nla_data(attr_data); | |
2491 | break; | |
2492 | case TEAM_OPTION_TYPE_BOOL: | |
2493 | ctx.data.bool_val = attr_data ? true : false; | |
2615598f | 2494 | break; |
69821638 JP |
2495 | case TEAM_OPTION_TYPE_S32: |
2496 | ctx.data.s32_val = nla_get_s32(attr_data); | |
2497 | break; | |
3d249d4c JP |
2498 | default: |
2499 | BUG(); | |
2500 | } | |
80f7c668 | 2501 | err = team_option_set(team, opt_inst, &ctx); |
3d249d4c JP |
2502 | if (err) |
2503 | goto team_put; | |
2fcdb2c9 JP |
2504 | opt_inst->changed = true; |
2505 | list_add(&opt_inst->tmp_list, &opt_inst_list); | |
3d249d4c JP |
2506 | } |
2507 | if (!opt_found) { | |
2508 | err = -ENOENT; | |
2509 | goto team_put; | |
2510 | } | |
2511 | } | |
2512 | ||
2fcdb2c9 JP |
2513 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
2514 | ||
3d249d4c JP |
2515 | team_put: |
2516 | team_nl_team_put(team); | |
2517 | ||
2518 | return err; | |
2519 | } | |
2520 | ||
d90f889e JP |
2521 | static int team_nl_fill_one_port_get(struct sk_buff *skb, |
2522 | struct team_port *port) | |
2523 | { | |
2524 | struct nlattr *port_item; | |
2525 | ||
2526 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); | |
2527 | if (!port_item) | |
2528 | goto nest_cancel; | |
2529 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) | |
2530 | goto nest_cancel; | |
2531 | if (port->changed) { | |
2532 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) | |
2533 | goto nest_cancel; | |
2534 | port->changed = false; | |
2535 | } | |
2536 | if ((port->removed && | |
2537 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || | |
2538 | (port->state.linkup && | |
2539 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || | |
2540 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || | |
2541 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) | |
2542 | goto nest_cancel; | |
2543 | nla_nest_end(skb, port_item); | |
2544 | return 0; | |
2545 | ||
2546 | nest_cancel: | |
2547 | nla_nest_cancel(skb, port_item); | |
2548 | return -EMSGSIZE; | |
2549 | } | |
2550 | ||
2551 | static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, | |
2552 | int flags, team_nl_send_func_t *send_func, | |
2553 | struct team_port *one_port) | |
3d249d4c JP |
2554 | { |
2555 | struct nlattr *port_list; | |
d90f889e | 2556 | struct nlmsghdr *nlh; |
3d249d4c JP |
2557 | void *hdr; |
2558 | struct team_port *port; | |
d90f889e JP |
2559 | int err; |
2560 | struct sk_buff *skb = NULL; | |
2561 | bool incomplete; | |
2562 | int i; | |
3d249d4c | 2563 | |
3f3e7ce4 JP |
2564 | port = list_first_entry_or_null(&team->port_list, |
2565 | struct team_port, list); | |
d90f889e JP |
2566 | |
2567 | start_again: | |
2568 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2569 | if (err) | |
2570 | return err; | |
2571 | ||
2572 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, | |
3d249d4c | 2573 | TEAM_CMD_PORT_LIST_GET); |
a326e6dd WY |
2574 | if (!hdr) |
2575 | return -EMSGSIZE; | |
3d249d4c | 2576 | |
86ebb02d DM |
2577 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2578 | goto nla_put_failure; | |
3d249d4c JP |
2579 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
2580 | if (!port_list) | |
3221c646 | 2581 | goto nla_put_failure; |
3d249d4c | 2582 | |
d90f889e JP |
2583 | i = 0; |
2584 | incomplete = false; | |
3d249d4c | 2585 | |
d90f889e JP |
2586 | /* If one port is selected, called wants to send port list containing |
2587 | * only this port. Otherwise go through all listed ports and send all | |
2588 | */ | |
2589 | if (one_port) { | |
2590 | err = team_nl_fill_one_port_get(skb, one_port); | |
2591 | if (err) | |
2592 | goto errout; | |
3f3e7ce4 JP |
2593 | } else if (port) { |
2594 | list_for_each_entry_from(port, &team->port_list, list) { | |
d90f889e JP |
2595 | err = team_nl_fill_one_port_get(skb, port); |
2596 | if (err) { | |
2597 | if (err == -EMSGSIZE) { | |
2598 | if (!i) | |
2599 | goto errout; | |
2600 | incomplete = true; | |
2601 | break; | |
2602 | } | |
2603 | goto errout; | |
2604 | } | |
2605 | i++; | |
b82b9183 | 2606 | } |
3d249d4c JP |
2607 | } |
2608 | ||
2609 | nla_nest_end(skb, port_list); | |
d90f889e JP |
2610 | genlmsg_end(skb, hdr); |
2611 | if (incomplete) | |
2612 | goto start_again; | |
2613 | ||
2614 | send_done: | |
2615 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2616 | if (!nlh) { | |
2617 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2618 | if (err) | |
2619 | goto errout; | |
2620 | goto send_done; | |
2621 | } | |
2622 | ||
2623 | return send_func(skb, team, portid); | |
3d249d4c JP |
2624 | |
2625 | nla_put_failure: | |
d90f889e JP |
2626 | err = -EMSGSIZE; |
2627 | errout: | |
3d249d4c | 2628 | genlmsg_cancel(skb, hdr); |
d90f889e JP |
2629 | nlmsg_free(skb); |
2630 | return err; | |
3d249d4c JP |
2631 | } |
2632 | ||
2633 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, | |
2634 | struct genl_info *info) | |
2635 | { | |
2636 | struct team *team; | |
2637 | int err; | |
2638 | ||
2639 | team = team_nl_team_get(info); | |
2640 | if (!team) | |
2641 | return -EINVAL; | |
2642 | ||
d90f889e JP |
2643 | err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, |
2644 | NLM_F_ACK, team_nl_send_unicast, NULL); | |
3d249d4c JP |
2645 | |
2646 | team_nl_team_put(team); | |
2647 | ||
2648 | return err; | |
2649 | } | |
2650 | ||
4534de83 | 2651 | static const struct genl_ops team_nl_ops[] = { |
3d249d4c JP |
2652 | { |
2653 | .cmd = TEAM_CMD_NOOP, | |
2654 | .doit = team_nl_cmd_noop, | |
2655 | .policy = team_nl_policy, | |
2656 | }, | |
2657 | { | |
2658 | .cmd = TEAM_CMD_OPTIONS_SET, | |
2659 | .doit = team_nl_cmd_options_set, | |
2660 | .policy = team_nl_policy, | |
2661 | .flags = GENL_ADMIN_PERM, | |
2662 | }, | |
2663 | { | |
2664 | .cmd = TEAM_CMD_OPTIONS_GET, | |
2665 | .doit = team_nl_cmd_options_get, | |
2666 | .policy = team_nl_policy, | |
2667 | .flags = GENL_ADMIN_PERM, | |
2668 | }, | |
2669 | { | |
2670 | .cmd = TEAM_CMD_PORT_LIST_GET, | |
2671 | .doit = team_nl_cmd_port_list_get, | |
2672 | .policy = team_nl_policy, | |
2673 | .flags = GENL_ADMIN_PERM, | |
2674 | }, | |
2675 | }; | |
2676 | ||
2a94fe48 JB |
2677 | static const struct genl_multicast_group team_nl_mcgrps[] = { |
2678 | { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, | |
3d249d4c JP |
2679 | }; |
2680 | ||
9b00cf2d | 2681 | static int team_nl_send_multicast(struct sk_buff *skb, |
15e47304 | 2682 | struct team *team, u32 portid) |
9b00cf2d | 2683 | { |
68eb5503 | 2684 | return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), |
2a94fe48 | 2685 | skb, 0, 0, GFP_KERNEL); |
9b00cf2d JP |
2686 | } |
2687 | ||
01048d9a JP |
2688 | static int team_nl_send_event_options_get(struct team *team, |
2689 | struct list_head *sel_opt_inst_list) | |
3d249d4c | 2690 | { |
9b00cf2d JP |
2691 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
2692 | sel_opt_inst_list); | |
3d249d4c JP |
2693 | } |
2694 | ||
d90f889e JP |
2695 | static int team_nl_send_event_port_get(struct team *team, |
2696 | struct team_port *port) | |
3d249d4c | 2697 | { |
d90f889e JP |
2698 | return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, |
2699 | port); | |
3d249d4c JP |
2700 | } |
2701 | ||
2702 | static int team_nl_init(void) | |
2703 | { | |
2a94fe48 JB |
2704 | return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops, |
2705 | team_nl_mcgrps); | |
3d249d4c JP |
2706 | } |
2707 | ||
2708 | static void team_nl_fini(void) | |
2709 | { | |
2710 | genl_unregister_family(&team_nl_family); | |
2711 | } | |
2712 | ||
2713 | ||
2714 | /****************** | |
2715 | * Change checkers | |
2716 | ******************/ | |
2717 | ||
b82b9183 | 2718 | static void __team_options_change_check(struct team *team) |
3d249d4c JP |
2719 | { |
2720 | int err; | |
01048d9a JP |
2721 | struct team_option_inst *opt_inst; |
2722 | LIST_HEAD(sel_opt_inst_list); | |
3d249d4c | 2723 | |
01048d9a JP |
2724 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
2725 | if (opt_inst->changed) | |
2726 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
2727 | } | |
2728 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); | |
0c7517e9 | 2729 | if (err && err != -ESRCH) |
9b00cf2d JP |
2730 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
2731 | err); | |
3d249d4c JP |
2732 | } |
2733 | ||
2734 | /* rtnl lock is held */ | |
10f3f51d JP |
2735 | |
2736 | static void __team_port_change_send(struct team_port *port, bool linkup) | |
3d249d4c JP |
2737 | { |
2738 | int err; | |
2739 | ||
b82b9183 | 2740 | port->changed = true; |
71472ec1 JP |
2741 | port->state.linkup = linkup; |
2742 | team_refresh_port_linkup(port); | |
3d249d4c JP |
2743 | if (linkup) { |
2744 | struct ethtool_cmd ecmd; | |
2745 | ||
2746 | err = __ethtool_get_settings(port->dev, &ecmd); | |
2747 | if (!err) { | |
71472ec1 JP |
2748 | port->state.speed = ethtool_cmd_speed(&ecmd); |
2749 | port->state.duplex = ecmd.duplex; | |
3d249d4c JP |
2750 | goto send_event; |
2751 | } | |
2752 | } | |
71472ec1 JP |
2753 | port->state.speed = 0; |
2754 | port->state.duplex = 0; | |
3d249d4c JP |
2755 | |
2756 | send_event: | |
d90f889e | 2757 | err = team_nl_send_event_port_get(port->team, port); |
0c7517e9 JP |
2758 | if (err && err != -ESRCH) |
2759 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", | |
2760 | port->dev->name, err); | |
3d249d4c JP |
2761 | |
2762 | } | |
2763 | ||
06a7fc42 FL |
2764 | static void __team_carrier_check(struct team *team) |
2765 | { | |
2766 | struct team_port *port; | |
2767 | bool team_linkup; | |
2768 | ||
e185483e FL |
2769 | if (team->user_carrier_enabled) |
2770 | return; | |
2771 | ||
06a7fc42 FL |
2772 | team_linkup = false; |
2773 | list_for_each_entry(port, &team->port_list, list) { | |
2774 | if (port->linkup) { | |
2775 | team_linkup = true; | |
2776 | break; | |
2777 | } | |
2778 | } | |
2779 | ||
2780 | if (team_linkup) | |
2781 | netif_carrier_on(team->dev); | |
2782 | else | |
2783 | netif_carrier_off(team->dev); | |
2784 | } | |
2785 | ||
10f3f51d JP |
2786 | static void __team_port_change_check(struct team_port *port, bool linkup) |
2787 | { | |
2788 | if (port->state.linkup != linkup) | |
2789 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2790 | __team_carrier_check(port->team); |
10f3f51d JP |
2791 | } |
2792 | ||
2793 | static void __team_port_change_port_added(struct team_port *port, bool linkup) | |
2794 | { | |
2795 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2796 | __team_carrier_check(port->team); |
10f3f51d JP |
2797 | } |
2798 | ||
2799 | static void __team_port_change_port_removed(struct team_port *port) | |
2800 | { | |
2801 | port->removed = true; | |
2802 | __team_port_change_send(port, false); | |
06a7fc42 | 2803 | __team_carrier_check(port->team); |
10f3f51d JP |
2804 | } |
2805 | ||
3d249d4c JP |
2806 | static void team_port_change_check(struct team_port *port, bool linkup) |
2807 | { | |
2808 | struct team *team = port->team; | |
2809 | ||
61dc3461 | 2810 | mutex_lock(&team->lock); |
3d249d4c | 2811 | __team_port_change_check(port, linkup); |
61dc3461 | 2812 | mutex_unlock(&team->lock); |
3d249d4c JP |
2813 | } |
2814 | ||
0f1aad2b | 2815 | |
3d249d4c JP |
2816 | /************************************ |
2817 | * Net device notifier event handler | |
2818 | ************************************/ | |
2819 | ||
2820 | static int team_device_event(struct notifier_block *unused, | |
2821 | unsigned long event, void *ptr) | |
2822 | { | |
351638e7 | 2823 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
3d249d4c JP |
2824 | struct team_port *port; |
2825 | ||
2826 | port = team_port_get_rtnl(dev); | |
2827 | if (!port) | |
2828 | return NOTIFY_DONE; | |
2829 | ||
2830 | switch (event) { | |
2831 | case NETDEV_UP: | |
2832 | if (netif_carrier_ok(dev)) | |
2833 | team_port_change_check(port, true); | |
ed2da03c | 2834 | break; |
3d249d4c JP |
2835 | case NETDEV_DOWN: |
2836 | team_port_change_check(port, false); | |
ed2da03c | 2837 | break; |
3d249d4c JP |
2838 | case NETDEV_CHANGE: |
2839 | if (netif_running(port->dev)) | |
2840 | team_port_change_check(port, | |
2841 | !!netif_carrier_ok(port->dev)); | |
2842 | break; | |
2843 | case NETDEV_UNREGISTER: | |
2844 | team_del_slave(port->team->dev, dev); | |
2845 | break; | |
2846 | case NETDEV_FEAT_CHANGE: | |
2847 | team_compute_features(port->team); | |
2848 | break; | |
b01f236c | 2849 | case NETDEV_PRECHANGEMTU: |
3d249d4c | 2850 | /* Forbid to change mtu of underlaying device */ |
9d0d68fa JP |
2851 | if (!port->team->port_mtu_change_allowed) |
2852 | return NOTIFY_BAD; | |
2853 | break; | |
3d249d4c JP |
2854 | case NETDEV_PRE_TYPE_CHANGE: |
2855 | /* Forbid to change type of underlaying device */ | |
2856 | return NOTIFY_BAD; | |
4aa5dee4 JP |
2857 | case NETDEV_RESEND_IGMP: |
2858 | /* Propagate to master device */ | |
2859 | call_netdevice_notifiers(event, port->team->dev); | |
2860 | break; | |
3d249d4c JP |
2861 | } |
2862 | return NOTIFY_DONE; | |
2863 | } | |
2864 | ||
2865 | static struct notifier_block team_notifier_block __read_mostly = { | |
2866 | .notifier_call = team_device_event, | |
2867 | }; | |
2868 | ||
2869 | ||
2870 | /*********************** | |
2871 | * Module init and exit | |
2872 | ***********************/ | |
2873 | ||
2874 | static int __init team_module_init(void) | |
2875 | { | |
2876 | int err; | |
2877 | ||
2878 | register_netdevice_notifier(&team_notifier_block); | |
2879 | ||
2880 | err = rtnl_link_register(&team_link_ops); | |
2881 | if (err) | |
2882 | goto err_rtnl_reg; | |
2883 | ||
2884 | err = team_nl_init(); | |
2885 | if (err) | |
2886 | goto err_nl_init; | |
2887 | ||
2888 | return 0; | |
2889 | ||
2890 | err_nl_init: | |
2891 | rtnl_link_unregister(&team_link_ops); | |
2892 | ||
2893 | err_rtnl_reg: | |
2894 | unregister_netdevice_notifier(&team_notifier_block); | |
2895 | ||
2896 | return err; | |
2897 | } | |
2898 | ||
2899 | static void __exit team_module_exit(void) | |
2900 | { | |
2901 | team_nl_fini(); | |
2902 | rtnl_link_unregister(&team_link_ops); | |
2903 | unregister_netdevice_notifier(&team_notifier_block); | |
2904 | } | |
2905 | ||
2906 | module_init(team_module_init); | |
2907 | module_exit(team_module_exit); | |
2908 | ||
2909 | MODULE_LICENSE("GPL v2"); | |
2910 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
2911 | MODULE_DESCRIPTION("Ethernet team device driver"); | |
2912 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |