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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> |
a16a8ee7 | 31 | #include <net/switchdev.h> |
7f51c587 | 32 | #include <generated/utsrelease.h> |
3d249d4c JP |
33 | #include <linux/if_team.h> |
34 | ||
35 | #define DRV_NAME "team" | |
36 | ||
37 | ||
38 | /********** | |
39 | * Helpers | |
40 | **********/ | |
41 | ||
42 | #define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT) | |
43 | ||
44 | static struct team_port *team_port_get_rcu(const struct net_device *dev) | |
45 | { | |
46 | struct team_port *port = rcu_dereference(dev->rx_handler_data); | |
47 | ||
48 | return team_port_exists(dev) ? port : NULL; | |
49 | } | |
50 | ||
51 | static struct team_port *team_port_get_rtnl(const struct net_device *dev) | |
52 | { | |
53 | struct team_port *port = rtnl_dereference(dev->rx_handler_data); | |
54 | ||
55 | return team_port_exists(dev) ? port : NULL; | |
56 | } | |
57 | ||
58 | /* | |
1d76efe1 | 59 | * Since the ability to change device address for open port device is tested in |
3d249d4c JP |
60 | * team_port_add, this function can be called without control of return value |
61 | */ | |
1d76efe1 JP |
62 | static int __set_port_dev_addr(struct net_device *port_dev, |
63 | const unsigned char *dev_addr) | |
3d249d4c JP |
64 | { |
65 | struct sockaddr addr; | |
66 | ||
1d76efe1 JP |
67 | memcpy(addr.sa_data, dev_addr, port_dev->addr_len); |
68 | addr.sa_family = port_dev->type; | |
3d249d4c JP |
69 | return dev_set_mac_address(port_dev, &addr); |
70 | } | |
71 | ||
1d76efe1 | 72 | static int team_port_set_orig_dev_addr(struct team_port *port) |
3d249d4c | 73 | { |
1d76efe1 | 74 | return __set_port_dev_addr(port->dev, port->orig.dev_addr); |
3d249d4c JP |
75 | } |
76 | ||
acbba0d0 JP |
77 | static int team_port_set_team_dev_addr(struct team *team, |
78 | struct team_port *port) | |
3d249d4c | 79 | { |
acbba0d0 | 80 | return __set_port_dev_addr(port->dev, team->dev->dev_addr); |
3d249d4c | 81 | } |
acbba0d0 JP |
82 | |
83 | int team_modeop_port_enter(struct team *team, struct team_port *port) | |
84 | { | |
85 | return team_port_set_team_dev_addr(team, port); | |
86 | } | |
87 | EXPORT_SYMBOL(team_modeop_port_enter); | |
88 | ||
89 | void team_modeop_port_change_dev_addr(struct team *team, | |
90 | struct team_port *port) | |
91 | { | |
92 | team_port_set_team_dev_addr(team, port); | |
93 | } | |
94 | EXPORT_SYMBOL(team_modeop_port_change_dev_addr); | |
3d249d4c | 95 | |
71472ec1 JP |
96 | static void team_refresh_port_linkup(struct team_port *port) |
97 | { | |
98 | port->linkup = port->user.linkup_enabled ? port->user.linkup : | |
99 | port->state.linkup; | |
100 | } | |
3d249d4c | 101 | |
0f1aad2b | 102 | |
3d249d4c JP |
103 | /******************* |
104 | * Options handling | |
105 | *******************/ | |
106 | ||
80f7c668 JP |
107 | struct team_option_inst { /* One for each option instance */ |
108 | struct list_head list; | |
01048d9a | 109 | struct list_head tmp_list; |
80f7c668 | 110 | struct team_option *option; |
85d59a87 | 111 | struct team_option_inst_info info; |
80f7c668 JP |
112 | bool changed; |
113 | bool removed; | |
114 | }; | |
115 | ||
116 | static struct team_option *__team_find_option(struct team *team, | |
117 | const char *opt_name) | |
358b8382 JP |
118 | { |
119 | struct team_option *option; | |
120 | ||
121 | list_for_each_entry(option, &team->option_list, list) { | |
122 | if (strcmp(option->name, opt_name) == 0) | |
123 | return option; | |
124 | } | |
125 | return NULL; | |
126 | } | |
127 | ||
80f7c668 JP |
128 | static void __team_option_inst_del(struct team_option_inst *opt_inst) |
129 | { | |
130 | list_del(&opt_inst->list); | |
131 | kfree(opt_inst); | |
132 | } | |
133 | ||
134 | static void __team_option_inst_del_option(struct team *team, | |
135 | struct team_option *option) | |
136 | { | |
137 | struct team_option_inst *opt_inst, *tmp; | |
138 | ||
139 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
140 | if (opt_inst->option == option) | |
141 | __team_option_inst_del(opt_inst); | |
142 | } | |
143 | } | |
144 | ||
b1303326 JP |
145 | static int __team_option_inst_add(struct team *team, struct team_option *option, |
146 | struct team_port *port) | |
147 | { | |
148 | struct team_option_inst *opt_inst; | |
149 | unsigned int array_size; | |
150 | unsigned int i; | |
85d59a87 | 151 | int err; |
b1303326 JP |
152 | |
153 | array_size = option->array_size; | |
154 | if (!array_size) | |
155 | array_size = 1; /* No array but still need one instance */ | |
156 | ||
157 | for (i = 0; i < array_size; i++) { | |
158 | opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); | |
159 | if (!opt_inst) | |
160 | return -ENOMEM; | |
161 | opt_inst->option = option; | |
85d59a87 JP |
162 | opt_inst->info.port = port; |
163 | opt_inst->info.array_index = i; | |
b1303326 JP |
164 | opt_inst->changed = true; |
165 | opt_inst->removed = false; | |
166 | list_add_tail(&opt_inst->list, &team->option_inst_list); | |
85d59a87 JP |
167 | if (option->init) { |
168 | err = option->init(team, &opt_inst->info); | |
169 | if (err) | |
170 | return err; | |
171 | } | |
172 | ||
b1303326 JP |
173 | } |
174 | return 0; | |
175 | } | |
176 | ||
80f7c668 JP |
177 | static int __team_option_inst_add_option(struct team *team, |
178 | struct team_option *option) | |
179 | { | |
80f7c668 JP |
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 | return 0; |
188 | ||
189 | inst_del_option: | |
190 | __team_option_inst_del_option(team, option); | |
191 | return err; | |
192 | } | |
193 | ||
194 | static void __team_option_inst_mark_removed_option(struct team *team, | |
195 | struct team_option *option) | |
196 | { | |
197 | struct team_option_inst *opt_inst; | |
198 | ||
199 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
200 | if (opt_inst->option == option) { | |
201 | opt_inst->changed = true; | |
202 | opt_inst->removed = true; | |
203 | } | |
204 | } | |
205 | } | |
206 | ||
207 | static void __team_option_inst_del_port(struct team *team, | |
208 | struct team_port *port) | |
209 | { | |
210 | struct team_option_inst *opt_inst, *tmp; | |
211 | ||
212 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
213 | if (opt_inst->option->per_port && | |
85d59a87 | 214 | opt_inst->info.port == port) |
80f7c668 JP |
215 | __team_option_inst_del(opt_inst); |
216 | } | |
217 | } | |
218 | ||
219 | static int __team_option_inst_add_port(struct team *team, | |
220 | struct team_port *port) | |
221 | { | |
222 | struct team_option *option; | |
223 | int err; | |
224 | ||
225 | list_for_each_entry(option, &team->option_list, list) { | |
226 | if (!option->per_port) | |
227 | continue; | |
228 | err = __team_option_inst_add(team, option, port); | |
229 | if (err) | |
230 | goto inst_del_port; | |
231 | } | |
232 | return 0; | |
233 | ||
234 | inst_del_port: | |
235 | __team_option_inst_del_port(team, port); | |
236 | return err; | |
237 | } | |
238 | ||
239 | static void __team_option_inst_mark_removed_port(struct team *team, | |
240 | struct team_port *port) | |
241 | { | |
242 | struct team_option_inst *opt_inst; | |
243 | ||
244 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
85d59a87 | 245 | if (opt_inst->info.port == port) { |
80f7c668 JP |
246 | opt_inst->changed = true; |
247 | opt_inst->removed = true; | |
248 | } | |
249 | } | |
250 | } | |
251 | ||
252 | static int __team_options_register(struct team *team, | |
253 | const struct team_option *option, | |
254 | size_t option_count) | |
3d249d4c JP |
255 | { |
256 | int i; | |
2bba19ff | 257 | struct team_option **dst_opts; |
358b8382 | 258 | int err; |
3d249d4c | 259 | |
2bba19ff JP |
260 | dst_opts = kzalloc(sizeof(struct team_option *) * option_count, |
261 | GFP_KERNEL); | |
262 | if (!dst_opts) | |
263 | return -ENOMEM; | |
358b8382 | 264 | for (i = 0; i < option_count; i++, option++) { |
358b8382 JP |
265 | if (__team_find_option(team, option->name)) { |
266 | err = -EEXIST; | |
80f7c668 | 267 | goto alloc_rollback; |
358b8382 | 268 | } |
f8a15af0 JP |
269 | dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); |
270 | if (!dst_opts[i]) { | |
358b8382 | 271 | err = -ENOMEM; |
80f7c668 | 272 | goto alloc_rollback; |
358b8382 | 273 | } |
358b8382 JP |
274 | } |
275 | ||
b82b9183 | 276 | for (i = 0; i < option_count; i++) { |
80f7c668 JP |
277 | err = __team_option_inst_add_option(team, dst_opts[i]); |
278 | if (err) | |
279 | goto inst_rollback; | |
358b8382 | 280 | list_add_tail(&dst_opts[i]->list, &team->option_list); |
b82b9183 | 281 | } |
358b8382 | 282 | |
2bba19ff | 283 | kfree(dst_opts); |
358b8382 JP |
284 | return 0; |
285 | ||
80f7c668 JP |
286 | inst_rollback: |
287 | for (i--; i >= 0; i--) | |
288 | __team_option_inst_del_option(team, dst_opts[i]); | |
289 | ||
290 | i = option_count - 1; | |
291 | alloc_rollback: | |
292 | for (i--; i >= 0; i--) | |
358b8382 JP |
293 | kfree(dst_opts[i]); |
294 | ||
2bba19ff | 295 | kfree(dst_opts); |
358b8382 | 296 | return err; |
3d249d4c | 297 | } |
358b8382 | 298 | |
b82b9183 JP |
299 | static void __team_options_mark_removed(struct team *team, |
300 | const struct team_option *option, | |
301 | size_t option_count) | |
302 | { | |
303 | int i; | |
304 | ||
305 | for (i = 0; i < option_count; i++, option++) { | |
306 | struct team_option *del_opt; | |
3d249d4c | 307 | |
b82b9183 | 308 | del_opt = __team_find_option(team, option->name); |
80f7c668 JP |
309 | if (del_opt) |
310 | __team_option_inst_mark_removed_option(team, del_opt); | |
b82b9183 JP |
311 | } |
312 | } | |
3d249d4c JP |
313 | |
314 | static void __team_options_unregister(struct team *team, | |
358b8382 | 315 | const struct team_option *option, |
3d249d4c JP |
316 | size_t option_count) |
317 | { | |
318 | int i; | |
319 | ||
358b8382 JP |
320 | for (i = 0; i < option_count; i++, option++) { |
321 | struct team_option *del_opt; | |
322 | ||
323 | del_opt = __team_find_option(team, option->name); | |
324 | if (del_opt) { | |
80f7c668 | 325 | __team_option_inst_del_option(team, del_opt); |
358b8382 JP |
326 | list_del(&del_opt->list); |
327 | kfree(del_opt); | |
328 | } | |
329 | } | |
3d249d4c JP |
330 | } |
331 | ||
b82b9183 JP |
332 | static void __team_options_change_check(struct team *team); |
333 | ||
334 | int team_options_register(struct team *team, | |
335 | const struct team_option *option, | |
336 | size_t option_count) | |
337 | { | |
338 | int err; | |
339 | ||
340 | err = __team_options_register(team, option, option_count); | |
341 | if (err) | |
342 | return err; | |
343 | __team_options_change_check(team); | |
344 | return 0; | |
345 | } | |
346 | EXPORT_SYMBOL(team_options_register); | |
347 | ||
358b8382 JP |
348 | void team_options_unregister(struct team *team, |
349 | const struct team_option *option, | |
3d249d4c JP |
350 | size_t option_count) |
351 | { | |
b82b9183 JP |
352 | __team_options_mark_removed(team, option, option_count); |
353 | __team_options_change_check(team); | |
3d249d4c | 354 | __team_options_unregister(team, option, option_count); |
3d249d4c JP |
355 | } |
356 | EXPORT_SYMBOL(team_options_unregister); | |
357 | ||
80f7c668 JP |
358 | static int team_option_get(struct team *team, |
359 | struct team_option_inst *opt_inst, | |
360 | struct team_gsetter_ctx *ctx) | |
361 | { | |
f82b959d JP |
362 | if (!opt_inst->option->getter) |
363 | return -EOPNOTSUPP; | |
80f7c668 JP |
364 | return opt_inst->option->getter(team, ctx); |
365 | } | |
366 | ||
367 | static int team_option_set(struct team *team, | |
368 | struct team_option_inst *opt_inst, | |
369 | struct team_gsetter_ctx *ctx) | |
3d249d4c | 370 | { |
f82b959d JP |
371 | if (!opt_inst->option->setter) |
372 | return -EOPNOTSUPP; | |
2fcdb2c9 | 373 | return opt_inst->option->setter(team, ctx); |
3d249d4c JP |
374 | } |
375 | ||
0f1aad2b JP |
376 | void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) |
377 | { | |
378 | struct team_option_inst *opt_inst; | |
379 | ||
380 | opt_inst = container_of(opt_inst_info, struct team_option_inst, info); | |
381 | opt_inst->changed = true; | |
382 | } | |
383 | EXPORT_SYMBOL(team_option_inst_set_change); | |
384 | ||
385 | void team_options_change_check(struct team *team) | |
386 | { | |
387 | __team_options_change_check(team); | |
388 | } | |
389 | EXPORT_SYMBOL(team_options_change_check); | |
390 | ||
391 | ||
3d249d4c JP |
392 | /**************** |
393 | * Mode handling | |
394 | ****************/ | |
395 | ||
396 | static LIST_HEAD(mode_list); | |
397 | static DEFINE_SPINLOCK(mode_list_lock); | |
398 | ||
0402788a JP |
399 | struct team_mode_item { |
400 | struct list_head list; | |
401 | const struct team_mode *mode; | |
402 | }; | |
403 | ||
404 | static struct team_mode_item *__find_mode(const char *kind) | |
3d249d4c | 405 | { |
0402788a | 406 | struct team_mode_item *mitem; |
3d249d4c | 407 | |
0402788a JP |
408 | list_for_each_entry(mitem, &mode_list, list) { |
409 | if (strcmp(mitem->mode->kind, kind) == 0) | |
410 | return mitem; | |
3d249d4c JP |
411 | } |
412 | return NULL; | |
413 | } | |
414 | ||
415 | static bool is_good_mode_name(const char *name) | |
416 | { | |
417 | while (*name != '\0') { | |
418 | if (!isalpha(*name) && !isdigit(*name) && *name != '_') | |
419 | return false; | |
420 | name++; | |
421 | } | |
422 | return true; | |
423 | } | |
424 | ||
0402788a | 425 | int team_mode_register(const struct team_mode *mode) |
3d249d4c JP |
426 | { |
427 | int err = 0; | |
0402788a | 428 | struct team_mode_item *mitem; |
3d249d4c JP |
429 | |
430 | if (!is_good_mode_name(mode->kind) || | |
431 | mode->priv_size > TEAM_MODE_PRIV_SIZE) | |
432 | return -EINVAL; | |
0402788a JP |
433 | |
434 | mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); | |
435 | if (!mitem) | |
436 | return -ENOMEM; | |
437 | ||
3d249d4c JP |
438 | spin_lock(&mode_list_lock); |
439 | if (__find_mode(mode->kind)) { | |
440 | err = -EEXIST; | |
0402788a | 441 | kfree(mitem); |
3d249d4c JP |
442 | goto unlock; |
443 | } | |
0402788a JP |
444 | mitem->mode = mode; |
445 | list_add_tail(&mitem->list, &mode_list); | |
3d249d4c JP |
446 | unlock: |
447 | spin_unlock(&mode_list_lock); | |
448 | return err; | |
449 | } | |
450 | EXPORT_SYMBOL(team_mode_register); | |
451 | ||
0402788a | 452 | void team_mode_unregister(const struct team_mode *mode) |
3d249d4c | 453 | { |
0402788a JP |
454 | struct team_mode_item *mitem; |
455 | ||
3d249d4c | 456 | spin_lock(&mode_list_lock); |
0402788a JP |
457 | mitem = __find_mode(mode->kind); |
458 | if (mitem) { | |
459 | list_del_init(&mitem->list); | |
460 | kfree(mitem); | |
461 | } | |
3d249d4c | 462 | spin_unlock(&mode_list_lock); |
3d249d4c JP |
463 | } |
464 | EXPORT_SYMBOL(team_mode_unregister); | |
465 | ||
0402788a | 466 | static const struct team_mode *team_mode_get(const char *kind) |
3d249d4c | 467 | { |
0402788a JP |
468 | struct team_mode_item *mitem; |
469 | const struct team_mode *mode = NULL; | |
3d249d4c JP |
470 | |
471 | spin_lock(&mode_list_lock); | |
0402788a JP |
472 | mitem = __find_mode(kind); |
473 | if (!mitem) { | |
3d249d4c JP |
474 | spin_unlock(&mode_list_lock); |
475 | request_module("team-mode-%s", kind); | |
476 | spin_lock(&mode_list_lock); | |
0402788a | 477 | mitem = __find_mode(kind); |
3d249d4c | 478 | } |
0402788a JP |
479 | if (mitem) { |
480 | mode = mitem->mode; | |
3d249d4c JP |
481 | if (!try_module_get(mode->owner)) |
482 | mode = NULL; | |
0402788a | 483 | } |
3d249d4c JP |
484 | |
485 | spin_unlock(&mode_list_lock); | |
486 | return mode; | |
487 | } | |
488 | ||
489 | static void team_mode_put(const struct team_mode *mode) | |
490 | { | |
491 | module_put(mode->owner); | |
492 | } | |
493 | ||
494 | static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) | |
495 | { | |
496 | dev_kfree_skb_any(skb); | |
497 | return false; | |
498 | } | |
499 | ||
2ea46599 | 500 | static rx_handler_result_t team_dummy_receive(struct team *team, |
501 | struct team_port *port, | |
502 | struct sk_buff *skb) | |
3d249d4c JP |
503 | { |
504 | return RX_HANDLER_ANOTHER; | |
505 | } | |
506 | ||
d299cd51 JP |
507 | static const struct team_mode __team_no_mode = { |
508 | .kind = "*NOMODE*", | |
509 | }; | |
510 | ||
511 | static bool team_is_mode_set(struct team *team) | |
512 | { | |
513 | return team->mode != &__team_no_mode; | |
514 | } | |
515 | ||
516 | static void team_set_no_mode(struct team *team) | |
517 | { | |
e185483e | 518 | team->user_carrier_enabled = false; |
d299cd51 JP |
519 | team->mode = &__team_no_mode; |
520 | } | |
521 | ||
735d381f | 522 | static void team_adjust_ops(struct team *team) |
3d249d4c JP |
523 | { |
524 | /* | |
525 | * To avoid checks in rx/tx skb paths, ensure here that non-null and | |
526 | * correct ops are always set. | |
527 | */ | |
528 | ||
735d381f | 529 | if (!team->en_port_count || !team_is_mode_set(team) || |
122bb046 | 530 | !team->mode->ops->transmit) |
3d249d4c JP |
531 | team->ops.transmit = team_dummy_transmit; |
532 | else | |
533 | team->ops.transmit = team->mode->ops->transmit; | |
534 | ||
735d381f | 535 | if (!team->en_port_count || !team_is_mode_set(team) || |
122bb046 | 536 | !team->mode->ops->receive) |
3d249d4c JP |
537 | team->ops.receive = team_dummy_receive; |
538 | else | |
539 | team->ops.receive = team->mode->ops->receive; | |
540 | } | |
541 | ||
542 | /* | |
543 | * We can benefit from the fact that it's ensured no port is present | |
544 | * at the time of mode change. Therefore no packets are in fly so there's no | |
545 | * need to set mode operations in any special way. | |
546 | */ | |
547 | static int __team_change_mode(struct team *team, | |
548 | const struct team_mode *new_mode) | |
549 | { | |
550 | /* Check if mode was previously set and do cleanup if so */ | |
d299cd51 | 551 | if (team_is_mode_set(team)) { |
3d249d4c JP |
552 | void (*exit_op)(struct team *team) = team->ops.exit; |
553 | ||
554 | /* Clear ops area so no callback is called any longer */ | |
555 | memset(&team->ops, 0, sizeof(struct team_mode_ops)); | |
556 | team_adjust_ops(team); | |
557 | ||
558 | if (exit_op) | |
559 | exit_op(team); | |
560 | team_mode_put(team->mode); | |
d299cd51 | 561 | team_set_no_mode(team); |
3d249d4c JP |
562 | /* zero private data area */ |
563 | memset(&team->mode_priv, 0, | |
564 | sizeof(struct team) - offsetof(struct team, mode_priv)); | |
565 | } | |
566 | ||
567 | if (!new_mode) | |
568 | return 0; | |
569 | ||
570 | if (new_mode->ops->init) { | |
571 | int err; | |
572 | ||
573 | err = new_mode->ops->init(team); | |
574 | if (err) | |
575 | return err; | |
576 | } | |
577 | ||
578 | team->mode = new_mode; | |
579 | memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); | |
580 | team_adjust_ops(team); | |
581 | ||
582 | return 0; | |
583 | } | |
584 | ||
585 | static int team_change_mode(struct team *team, const char *kind) | |
586 | { | |
0402788a | 587 | const struct team_mode *new_mode; |
3d249d4c JP |
588 | struct net_device *dev = team->dev; |
589 | int err; | |
590 | ||
591 | if (!list_empty(&team->port_list)) { | |
592 | netdev_err(dev, "No ports can be present during mode change\n"); | |
593 | return -EBUSY; | |
594 | } | |
595 | ||
d299cd51 | 596 | if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { |
3d249d4c JP |
597 | netdev_err(dev, "Unable to change to the same mode the team is in\n"); |
598 | return -EINVAL; | |
599 | } | |
600 | ||
601 | new_mode = team_mode_get(kind); | |
602 | if (!new_mode) { | |
603 | netdev_err(dev, "Mode \"%s\" not found\n", kind); | |
604 | return -EINVAL; | |
605 | } | |
606 | ||
607 | err = __team_change_mode(team, new_mode); | |
608 | if (err) { | |
609 | netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); | |
610 | team_mode_put(new_mode); | |
611 | return err; | |
612 | } | |
613 | ||
614 | netdev_info(dev, "Mode changed to \"%s\"\n", kind); | |
615 | return 0; | |
616 | } | |
617 | ||
618 | ||
fc423ff0 JP |
619 | /********************* |
620 | * Peers notification | |
621 | *********************/ | |
622 | ||
623 | static void team_notify_peers_work(struct work_struct *work) | |
624 | { | |
625 | struct team *team; | |
b0d11b42 | 626 | int val; |
fc423ff0 JP |
627 | |
628 | team = container_of(work, struct team, notify_peers.dw.work); | |
629 | ||
630 | if (!rtnl_trylock()) { | |
631 | schedule_delayed_work(&team->notify_peers.dw, 0); | |
632 | return; | |
633 | } | |
b0d11b42 JP |
634 | val = atomic_dec_if_positive(&team->notify_peers.count_pending); |
635 | if (val < 0) { | |
636 | rtnl_unlock(); | |
637 | return; | |
638 | } | |
fc423ff0 JP |
639 | call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev); |
640 | rtnl_unlock(); | |
b0d11b42 | 641 | if (val) |
fc423ff0 JP |
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; | |
47549650 | 650 | atomic_add(team->notify_peers.count, &team->notify_peers.count_pending); |
fc423ff0 JP |
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; | |
b0d11b42 | 672 | int val; |
492b200e JP |
673 | |
674 | team = container_of(work, struct team, mcast_rejoin.dw.work); | |
675 | ||
676 | if (!rtnl_trylock()) { | |
677 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); | |
678 | return; | |
679 | } | |
b0d11b42 JP |
680 | val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending); |
681 | if (val < 0) { | |
682 | rtnl_unlock(); | |
683 | return; | |
684 | } | |
492b200e JP |
685 | call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev); |
686 | rtnl_unlock(); | |
b0d11b42 | 687 | if (val) |
492b200e JP |
688 | schedule_delayed_work(&team->mcast_rejoin.dw, |
689 | msecs_to_jiffies(team->mcast_rejoin.interval)); | |
690 | } | |
691 | ||
692 | static void team_mcast_rejoin(struct team *team) | |
693 | { | |
694 | if (!team->mcast_rejoin.count || !netif_running(team->dev)) | |
695 | return; | |
47549650 | 696 | atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending); |
492b200e JP |
697 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); |
698 | } | |
699 | ||
700 | static void team_mcast_rejoin_init(struct team *team) | |
701 | { | |
702 | INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work); | |
703 | } | |
704 | ||
705 | static void team_mcast_rejoin_fini(struct team *team) | |
706 | { | |
707 | cancel_delayed_work_sync(&team->mcast_rejoin.dw); | |
708 | } | |
709 | ||
710 | ||
3d249d4c JP |
711 | /************************ |
712 | * Rx path frame handler | |
713 | ************************/ | |
714 | ||
715 | /* note: already called with rcu_read_lock */ | |
716 | static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) | |
717 | { | |
718 | struct sk_buff *skb = *pskb; | |
719 | struct team_port *port; | |
720 | struct team *team; | |
721 | rx_handler_result_t res; | |
722 | ||
723 | skb = skb_share_check(skb, GFP_ATOMIC); | |
724 | if (!skb) | |
725 | return RX_HANDLER_CONSUMED; | |
726 | ||
727 | *pskb = skb; | |
728 | ||
729 | port = team_port_get_rcu(skb->dev); | |
730 | team = port->team; | |
19a0b58e JP |
731 | if (!team_port_enabled(port)) { |
732 | /* allow exact match delivery for disabled ports */ | |
733 | res = RX_HANDLER_EXACT; | |
734 | } else { | |
735 | res = team->ops.receive(team, port, skb); | |
736 | } | |
3d249d4c JP |
737 | if (res == RX_HANDLER_ANOTHER) { |
738 | struct team_pcpu_stats *pcpu_stats; | |
739 | ||
740 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
741 | u64_stats_update_begin(&pcpu_stats->syncp); | |
742 | pcpu_stats->rx_packets++; | |
743 | pcpu_stats->rx_bytes += skb->len; | |
744 | if (skb->pkt_type == PACKET_MULTICAST) | |
745 | pcpu_stats->rx_multicast++; | |
746 | u64_stats_update_end(&pcpu_stats->syncp); | |
747 | ||
748 | skb->dev = team->dev; | |
749 | } else { | |
750 | this_cpu_inc(team->pcpu_stats->rx_dropped); | |
751 | } | |
752 | ||
753 | return res; | |
754 | } | |
755 | ||
756 | ||
8ff5105a JP |
757 | /************************************* |
758 | * Multiqueue Tx port select override | |
759 | *************************************/ | |
760 | ||
761 | static int team_queue_override_init(struct team *team) | |
762 | { | |
763 | struct list_head *listarr; | |
764 | unsigned int queue_cnt = team->dev->num_tx_queues - 1; | |
765 | unsigned int i; | |
766 | ||
767 | if (!queue_cnt) | |
768 | return 0; | |
769 | listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); | |
770 | if (!listarr) | |
771 | return -ENOMEM; | |
772 | team->qom_lists = listarr; | |
773 | for (i = 0; i < queue_cnt; i++) | |
774 | INIT_LIST_HEAD(listarr++); | |
775 | return 0; | |
776 | } | |
777 | ||
778 | static void team_queue_override_fini(struct team *team) | |
779 | { | |
780 | kfree(team->qom_lists); | |
781 | } | |
782 | ||
783 | static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) | |
784 | { | |
785 | return &team->qom_lists[queue_id - 1]; | |
786 | } | |
787 | ||
788 | /* | |
789 | * note: already called with rcu_read_lock | |
790 | */ | |
791 | static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) | |
792 | { | |
793 | struct list_head *qom_list; | |
794 | struct team_port *port; | |
795 | ||
796 | if (!team->queue_override_enabled || !skb->queue_mapping) | |
797 | return false; | |
798 | qom_list = __team_get_qom_list(team, skb->queue_mapping); | |
799 | list_for_each_entry_rcu(port, qom_list, qom_list) { | |
800 | if (!team_dev_queue_xmit(team, port, skb)) | |
801 | return true; | |
802 | } | |
803 | return false; | |
804 | } | |
805 | ||
806 | static void __team_queue_override_port_del(struct team *team, | |
807 | struct team_port *port) | |
808 | { | |
6c31ff36 JP |
809 | if (!port->queue_id) |
810 | return; | |
8ff5105a | 811 | list_del_rcu(&port->qom_list); |
8ff5105a JP |
812 | } |
813 | ||
814 | static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, | |
815 | struct team_port *cur) | |
816 | { | |
817 | if (port->priority < cur->priority) | |
818 | return true; | |
819 | if (port->priority > cur->priority) | |
820 | return false; | |
821 | if (port->index < cur->index) | |
822 | return true; | |
823 | return false; | |
824 | } | |
825 | ||
826 | static void __team_queue_override_port_add(struct team *team, | |
827 | struct team_port *port) | |
828 | { | |
829 | struct team_port *cur; | |
830 | struct list_head *qom_list; | |
831 | struct list_head *node; | |
832 | ||
6c31ff36 | 833 | if (!port->queue_id) |
8ff5105a | 834 | return; |
8ff5105a JP |
835 | qom_list = __team_get_qom_list(team, port->queue_id); |
836 | node = qom_list; | |
837 | list_for_each_entry(cur, qom_list, qom_list) { | |
838 | if (team_queue_override_port_has_gt_prio_than(port, cur)) | |
839 | break; | |
840 | node = &cur->qom_list; | |
841 | } | |
842 | list_add_tail_rcu(&port->qom_list, node); | |
843 | } | |
844 | ||
845 | static void __team_queue_override_enabled_check(struct team *team) | |
846 | { | |
847 | struct team_port *port; | |
848 | bool enabled = false; | |
849 | ||
850 | list_for_each_entry(port, &team->port_list, list) { | |
6c31ff36 | 851 | if (port->queue_id) { |
8ff5105a JP |
852 | enabled = true; |
853 | break; | |
854 | } | |
855 | } | |
856 | if (enabled == team->queue_override_enabled) | |
857 | return; | |
858 | netdev_dbg(team->dev, "%s queue override\n", | |
859 | enabled ? "Enabling" : "Disabling"); | |
860 | team->queue_override_enabled = enabled; | |
861 | } | |
862 | ||
6c31ff36 JP |
863 | static void team_queue_override_port_prio_changed(struct team *team, |
864 | struct team_port *port) | |
8ff5105a | 865 | { |
6c31ff36 JP |
866 | if (!port->queue_id || team_port_enabled(port)) |
867 | return; | |
8ff5105a JP |
868 | __team_queue_override_port_del(team, port); |
869 | __team_queue_override_port_add(team, port); | |
870 | __team_queue_override_enabled_check(team); | |
871 | } | |
872 | ||
6c31ff36 JP |
873 | static void team_queue_override_port_change_queue_id(struct team *team, |
874 | struct team_port *port, | |
875 | u16 new_queue_id) | |
876 | { | |
877 | if (team_port_enabled(port)) { | |
878 | __team_queue_override_port_del(team, port); | |
879 | port->queue_id = new_queue_id; | |
880 | __team_queue_override_port_add(team, port); | |
881 | __team_queue_override_enabled_check(team); | |
882 | } else { | |
883 | port->queue_id = new_queue_id; | |
884 | } | |
885 | } | |
886 | ||
887 | static void team_queue_override_port_add(struct team *team, | |
888 | struct team_port *port) | |
889 | { | |
890 | __team_queue_override_port_add(team, port); | |
891 | __team_queue_override_enabled_check(team); | |
892 | } | |
893 | ||
894 | static void team_queue_override_port_del(struct team *team, | |
895 | struct team_port *port) | |
896 | { | |
897 | __team_queue_override_port_del(team, port); | |
898 | __team_queue_override_enabled_check(team); | |
899 | } | |
900 | ||
8ff5105a | 901 | |
3d249d4c JP |
902 | /**************** |
903 | * Port handling | |
904 | ****************/ | |
905 | ||
906 | static bool team_port_find(const struct team *team, | |
907 | const struct team_port *port) | |
908 | { | |
909 | struct team_port *cur; | |
910 | ||
911 | list_for_each_entry(cur, &team->port_list, list) | |
912 | if (cur == port) | |
913 | return true; | |
914 | return false; | |
915 | } | |
916 | ||
917 | /* | |
19a0b58e JP |
918 | * Enable/disable port by adding to enabled port hashlist and setting |
919 | * port->index (Might be racy so reader could see incorrect ifindex when | |
920 | * processing a flying packet, but that is not a problem). Write guarded | |
921 | * by team->lock. | |
3d249d4c | 922 | */ |
19a0b58e JP |
923 | static void team_port_enable(struct team *team, |
924 | struct team_port *port) | |
3d249d4c | 925 | { |
19a0b58e JP |
926 | if (team_port_enabled(port)) |
927 | return; | |
928 | port->index = team->en_port_count++; | |
3d249d4c JP |
929 | hlist_add_head_rcu(&port->hlist, |
930 | team_port_index_hash(team, port->index)); | |
122bb046 | 931 | team_adjust_ops(team); |
6c31ff36 | 932 | team_queue_override_port_add(team, port); |
4bccfd17 JP |
933 | if (team->ops.port_enabled) |
934 | team->ops.port_enabled(team, port); | |
fc423ff0 | 935 | team_notify_peers(team); |
492b200e | 936 | team_mcast_rejoin(team); |
3d249d4c JP |
937 | } |
938 | ||
939 | static void __reconstruct_port_hlist(struct team *team, int rm_index) | |
940 | { | |
941 | int i; | |
942 | struct team_port *port; | |
943 | ||
19a0b58e | 944 | for (i = rm_index + 1; i < team->en_port_count; i++) { |
3d249d4c JP |
945 | port = team_get_port_by_index(team, i); |
946 | hlist_del_rcu(&port->hlist); | |
947 | port->index--; | |
948 | hlist_add_head_rcu(&port->hlist, | |
949 | team_port_index_hash(team, port->index)); | |
950 | } | |
951 | } | |
952 | ||
19a0b58e JP |
953 | static void team_port_disable(struct team *team, |
954 | struct team_port *port) | |
3d249d4c | 955 | { |
19a0b58e JP |
956 | if (!team_port_enabled(port)) |
957 | return; | |
4bccfd17 JP |
958 | if (team->ops.port_disabled) |
959 | team->ops.port_disabled(team, port); | |
3d249d4c | 960 | hlist_del_rcu(&port->hlist); |
122bb046 | 961 | __reconstruct_port_hlist(team, port->index); |
19a0b58e | 962 | port->index = -1; |
122bb046 | 963 | team->en_port_count--; |
735d381f JP |
964 | team_queue_override_port_del(team, port); |
965 | team_adjust_ops(team); | |
fc423ff0 | 966 | team_notify_peers(team); |
492b200e | 967 | team_mcast_rejoin(team); |
3d249d4c JP |
968 | } |
969 | ||
970 | #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \ | |
971 | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ | |
972 | NETIF_F_HIGHDMA | NETIF_F_LRO) | |
973 | ||
974 | static void __team_compute_features(struct team *team) | |
975 | { | |
976 | struct team_port *port; | |
3625920b | 977 | u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL; |
3d249d4c | 978 | unsigned short max_hard_header_len = ETH_HLEN; |
02875878 ED |
979 | unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE | |
980 | IFF_XMIT_DST_RELEASE_PERM; | |
3d249d4c JP |
981 | |
982 | list_for_each_entry(port, &team->port_list, list) { | |
983 | vlan_features = netdev_increment_features(vlan_features, | |
984 | port->dev->vlan_features, | |
985 | TEAM_VLAN_FEATURES); | |
986 | ||
dc905951 | 987 | dst_release_flag &= port->dev->priv_flags; |
3d249d4c JP |
988 | if (port->dev->hard_header_len > max_hard_header_len) |
989 | max_hard_header_len = port->dev->hard_header_len; | |
990 | } | |
991 | ||
992 | team->dev->vlan_features = vlan_features; | |
993 | team->dev->hard_header_len = max_hard_header_len; | |
994 | ||
02875878 ED |
995 | team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; |
996 | if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM)) | |
997 | team->dev->priv_flags |= IFF_XMIT_DST_RELEASE; | |
dc905951 | 998 | |
3d249d4c JP |
999 | netdev_change_features(team->dev); |
1000 | } | |
1001 | ||
1002 | static void team_compute_features(struct team *team) | |
1003 | { | |
61dc3461 | 1004 | mutex_lock(&team->lock); |
3d249d4c | 1005 | __team_compute_features(team); |
61dc3461 | 1006 | mutex_unlock(&team->lock); |
3d249d4c JP |
1007 | } |
1008 | ||
1009 | static int team_port_enter(struct team *team, struct team_port *port) | |
1010 | { | |
1011 | int err = 0; | |
1012 | ||
1013 | dev_hold(team->dev); | |
3d249d4c JP |
1014 | if (team->ops.port_enter) { |
1015 | err = team->ops.port_enter(team, port); | |
1016 | if (err) { | |
1017 | netdev_err(team->dev, "Device %s failed to enter team mode\n", | |
1018 | port->dev->name); | |
1019 | goto err_port_enter; | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | return 0; | |
1024 | ||
1025 | err_port_enter: | |
3d249d4c JP |
1026 | dev_put(team->dev); |
1027 | ||
1028 | return err; | |
1029 | } | |
1030 | ||
1031 | static void team_port_leave(struct team *team, struct team_port *port) | |
1032 | { | |
1033 | if (team->ops.port_leave) | |
1034 | team->ops.port_leave(team, port); | |
3d249d4c JP |
1035 | dev_put(team->dev); |
1036 | } | |
1037 | ||
bd2d0837 | 1038 | #ifdef CONFIG_NET_POLL_CONTROLLER |
a8779ec1 | 1039 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
bd2d0837 JP |
1040 | { |
1041 | struct netpoll *np; | |
1042 | int err; | |
1043 | ||
0fb52a27 | 1044 | if (!team->dev->npinfo) |
1045 | return 0; | |
1046 | ||
a8779ec1 | 1047 | np = kzalloc(sizeof(*np), GFP_KERNEL); |
bd2d0837 JP |
1048 | if (!np) |
1049 | return -ENOMEM; | |
1050 | ||
a8779ec1 | 1051 | err = __netpoll_setup(np, port->dev); |
bd2d0837 JP |
1052 | if (err) { |
1053 | kfree(np); | |
1054 | return err; | |
1055 | } | |
1056 | port->np = np; | |
1057 | return err; | |
1058 | } | |
1059 | ||
1060 | static void team_port_disable_netpoll(struct team_port *port) | |
1061 | { | |
1062 | struct netpoll *np = port->np; | |
1063 | ||
1064 | if (!np) | |
1065 | return; | |
1066 | port->np = NULL; | |
1067 | ||
1068 | /* Wait for transmitting packets to finish before freeing. */ | |
1069 | synchronize_rcu_bh(); | |
1070 | __netpoll_cleanup(np); | |
1071 | kfree(np); | |
1072 | } | |
bd2d0837 | 1073 | #else |
a8779ec1 | 1074 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
bd2d0837 JP |
1075 | { |
1076 | return 0; | |
1077 | } | |
1078 | static void team_port_disable_netpoll(struct team_port *port) | |
1079 | { | |
1080 | } | |
bd2d0837 JP |
1081 | #endif |
1082 | ||
d7d3c051 JP |
1083 | static int team_upper_dev_link(struct net_device *dev, |
1084 | struct net_device *port_dev) | |
1085 | { | |
1086 | int err; | |
1087 | ||
1088 | err = netdev_master_upper_dev_link(port_dev, dev); | |
1089 | if (err) | |
1090 | return err; | |
1091 | port_dev->priv_flags |= IFF_TEAM_PORT; | |
1092 | return 0; | |
1093 | } | |
1094 | ||
1095 | static void team_upper_dev_unlink(struct net_device *dev, | |
1096 | struct net_device *port_dev) | |
1097 | { | |
1098 | netdev_upper_dev_unlink(port_dev, dev); | |
1099 | port_dev->priv_flags &= ~IFF_TEAM_PORT; | |
1100 | } | |
1101 | ||
10f3f51d | 1102 | static void __team_port_change_port_added(struct team_port *port, bool linkup); |
1d76efe1 JP |
1103 | static int team_dev_type_check_change(struct net_device *dev, |
1104 | struct net_device *port_dev); | |
3d249d4c JP |
1105 | |
1106 | static int team_port_add(struct team *team, struct net_device *port_dev) | |
1107 | { | |
1108 | struct net_device *dev = team->dev; | |
1109 | struct team_port *port; | |
1110 | char *portname = port_dev->name; | |
1111 | int err; | |
1112 | ||
1d76efe1 JP |
1113 | if (port_dev->flags & IFF_LOOPBACK) { |
1114 | netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", | |
3d249d4c JP |
1115 | portname); |
1116 | return -EINVAL; | |
1117 | } | |
1118 | ||
1119 | if (team_port_exists(port_dev)) { | |
1120 | netdev_err(dev, "Device %s is already a port " | |
1121 | "of a team device\n", portname); | |
1122 | return -EBUSY; | |
1123 | } | |
1124 | ||
2c33bb37 JP |
1125 | if (port_dev->features & NETIF_F_VLAN_CHALLENGED && |
1126 | vlan_uses_dev(dev)) { | |
1127 | netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", | |
1128 | portname); | |
1129 | return -EPERM; | |
1130 | } | |
1131 | ||
1d76efe1 JP |
1132 | err = team_dev_type_check_change(dev, port_dev); |
1133 | if (err) | |
1134 | return err; | |
1135 | ||
3d249d4c JP |
1136 | if (port_dev->flags & IFF_UP) { |
1137 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", | |
1138 | portname); | |
1139 | return -EBUSY; | |
1140 | } | |
1141 | ||
5149ee58 JP |
1142 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
1143 | GFP_KERNEL); | |
3d249d4c JP |
1144 | if (!port) |
1145 | return -ENOMEM; | |
1146 | ||
1147 | port->dev = port_dev; | |
1148 | port->team = team; | |
8ff5105a | 1149 | INIT_LIST_HEAD(&port->qom_list); |
3d249d4c JP |
1150 | |
1151 | port->orig.mtu = port_dev->mtu; | |
1152 | err = dev_set_mtu(port_dev, dev->mtu); | |
1153 | if (err) { | |
1154 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); | |
1155 | goto err_set_mtu; | |
1156 | } | |
1157 | ||
1d76efe1 | 1158 | memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); |
3d249d4c JP |
1159 | |
1160 | err = team_port_enter(team, port); | |
1161 | if (err) { | |
1162 | netdev_err(dev, "Device %s failed to enter team mode\n", | |
1163 | portname); | |
1164 | goto err_port_enter; | |
1165 | } | |
1166 | ||
1167 | err = dev_open(port_dev); | |
1168 | if (err) { | |
1169 | netdev_dbg(dev, "Device %s opening failed\n", | |
1170 | portname); | |
1171 | goto err_dev_open; | |
1172 | } | |
1173 | ||
57459185 JP |
1174 | err = vlan_vids_add_by_dev(port_dev, dev); |
1175 | if (err) { | |
1176 | netdev_err(dev, "Failed to add vlan ids to device %s\n", | |
1177 | portname); | |
1178 | goto err_vids_add; | |
1179 | } | |
1180 | ||
a8779ec1 | 1181 | err = team_port_enable_netpoll(team, port); |
0fb52a27 | 1182 | if (err) { |
1183 | netdev_err(dev, "Failed to enable netpoll on device %s\n", | |
1184 | portname); | |
1185 | goto err_enable_netpoll; | |
bd2d0837 JP |
1186 | } |
1187 | ||
fbe168ba MK |
1188 | if (!(dev->features & NETIF_F_LRO)) |
1189 | dev_disable_lro(port_dev); | |
1190 | ||
3d249d4c JP |
1191 | err = netdev_rx_handler_register(port_dev, team_handle_frame, |
1192 | port); | |
1193 | if (err) { | |
1194 | netdev_err(dev, "Device %s failed to register rx_handler\n", | |
1195 | portname); | |
1196 | goto err_handler_register; | |
1197 | } | |
1198 | ||
d7d3c051 JP |
1199 | err = team_upper_dev_link(dev, port_dev); |
1200 | if (err) { | |
1201 | netdev_err(dev, "Device %s failed to set upper link\n", | |
1202 | portname); | |
1203 | goto err_set_upper_link; | |
1204 | } | |
1205 | ||
35b384bd | 1206 | err = __team_option_inst_add_port(team, port); |
80f7c668 JP |
1207 | if (err) { |
1208 | netdev_err(dev, "Device %s failed to add per-port options\n", | |
1209 | portname); | |
1210 | goto err_option_port_add; | |
1211 | } | |
1212 | ||
19a0b58e | 1213 | port->index = -1; |
19a0b58e | 1214 | list_add_tail_rcu(&port->list, &team->port_list); |
72df935d | 1215 | team_port_enable(team, port); |
3d249d4c | 1216 | __team_compute_features(team); |
10f3f51d | 1217 | __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); |
35b384bd | 1218 | __team_options_change_check(team); |
3d249d4c JP |
1219 | |
1220 | netdev_info(dev, "Port device %s added\n", portname); | |
1221 | ||
1222 | return 0; | |
1223 | ||
80f7c668 | 1224 | err_option_port_add: |
d7d3c051 JP |
1225 | team_upper_dev_unlink(dev, port_dev); |
1226 | ||
1227 | err_set_upper_link: | |
80f7c668 JP |
1228 | netdev_rx_handler_unregister(port_dev); |
1229 | ||
3d249d4c | 1230 | err_handler_register: |
bd2d0837 JP |
1231 | team_port_disable_netpoll(port); |
1232 | ||
1233 | err_enable_netpoll: | |
57459185 JP |
1234 | vlan_vids_del_by_dev(port_dev, dev); |
1235 | ||
1236 | err_vids_add: | |
3d249d4c JP |
1237 | dev_close(port_dev); |
1238 | ||
1239 | err_dev_open: | |
1240 | team_port_leave(team, port); | |
1d76efe1 | 1241 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1242 | |
1243 | err_port_enter: | |
1244 | dev_set_mtu(port_dev, port->orig.mtu); | |
1245 | ||
1246 | err_set_mtu: | |
1247 | kfree(port); | |
1248 | ||
1249 | return err; | |
1250 | } | |
1251 | ||
10f3f51d JP |
1252 | static void __team_port_change_port_removed(struct team_port *port); |
1253 | ||
3d249d4c JP |
1254 | static int team_port_del(struct team *team, struct net_device *port_dev) |
1255 | { | |
1256 | struct net_device *dev = team->dev; | |
1257 | struct team_port *port; | |
1258 | char *portname = port_dev->name; | |
1259 | ||
1260 | port = team_port_get_rtnl(port_dev); | |
1261 | if (!port || !team_port_find(team, port)) { | |
1262 | netdev_err(dev, "Device %s does not act as a port of this team\n", | |
1263 | portname); | |
1264 | return -ENOENT; | |
1265 | } | |
1266 | ||
19a0b58e JP |
1267 | team_port_disable(team, port); |
1268 | list_del_rcu(&port->list); | |
d7d3c051 | 1269 | team_upper_dev_unlink(dev, port_dev); |
3d249d4c | 1270 | netdev_rx_handler_unregister(port_dev); |
bd2d0837 | 1271 | team_port_disable_netpoll(port); |
57459185 | 1272 | vlan_vids_del_by_dev(port_dev, dev); |
ba81276b VY |
1273 | dev_uc_unsync(port_dev, dev); |
1274 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1275 | dev_close(port_dev); |
1276 | team_port_leave(team, port); | |
c3969d80 JP |
1277 | |
1278 | __team_option_inst_mark_removed_port(team, port); | |
1279 | __team_options_change_check(team); | |
1280 | __team_option_inst_del_port(team, port); | |
1281 | __team_port_change_port_removed(port); | |
1282 | ||
1d76efe1 | 1283 | team_port_set_orig_dev_addr(port); |
3d249d4c | 1284 | dev_set_mtu(port_dev, port->orig.mtu); |
d80b35be | 1285 | kfree_rcu(port, rcu); |
3d249d4c JP |
1286 | netdev_info(dev, "Port device %s removed\n", portname); |
1287 | __team_compute_features(team); | |
1288 | ||
1289 | return 0; | |
1290 | } | |
1291 | ||
1292 | ||
1293 | /***************** | |
1294 | * Net device ops | |
1295 | *****************/ | |
1296 | ||
80f7c668 | 1297 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1298 | { |
d299cd51 | 1299 | ctx->data.str_val = team->mode->kind; |
3d249d4c JP |
1300 | return 0; |
1301 | } | |
1302 | ||
80f7c668 | 1303 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1304 | { |
80f7c668 | 1305 | return team_change_mode(team, ctx->data.str_val); |
3d249d4c JP |
1306 | } |
1307 | ||
fc423ff0 JP |
1308 | static int team_notify_peers_count_get(struct team *team, |
1309 | struct team_gsetter_ctx *ctx) | |
1310 | { | |
1311 | ctx->data.u32_val = team->notify_peers.count; | |
1312 | return 0; | |
1313 | } | |
1314 | ||
1315 | static int team_notify_peers_count_set(struct team *team, | |
1316 | struct team_gsetter_ctx *ctx) | |
1317 | { | |
1318 | team->notify_peers.count = ctx->data.u32_val; | |
1319 | return 0; | |
1320 | } | |
1321 | ||
1322 | static int team_notify_peers_interval_get(struct team *team, | |
1323 | struct team_gsetter_ctx *ctx) | |
1324 | { | |
1325 | ctx->data.u32_val = team->notify_peers.interval; | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | static int team_notify_peers_interval_set(struct team *team, | |
1330 | struct team_gsetter_ctx *ctx) | |
1331 | { | |
1332 | team->notify_peers.interval = ctx->data.u32_val; | |
1333 | return 0; | |
1334 | } | |
1335 | ||
492b200e JP |
1336 | static int team_mcast_rejoin_count_get(struct team *team, |
1337 | struct team_gsetter_ctx *ctx) | |
1338 | { | |
1339 | ctx->data.u32_val = team->mcast_rejoin.count; | |
1340 | return 0; | |
1341 | } | |
1342 | ||
1343 | static int team_mcast_rejoin_count_set(struct team *team, | |
1344 | struct team_gsetter_ctx *ctx) | |
1345 | { | |
1346 | team->mcast_rejoin.count = ctx->data.u32_val; | |
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | static int team_mcast_rejoin_interval_get(struct team *team, | |
1351 | struct team_gsetter_ctx *ctx) | |
1352 | { | |
1353 | ctx->data.u32_val = team->mcast_rejoin.interval; | |
1354 | return 0; | |
1355 | } | |
1356 | ||
1357 | static int team_mcast_rejoin_interval_set(struct team *team, | |
1358 | struct team_gsetter_ctx *ctx) | |
1359 | { | |
1360 | team->mcast_rejoin.interval = ctx->data.u32_val; | |
1361 | return 0; | |
1362 | } | |
1363 | ||
acd69962 JP |
1364 | static int team_port_en_option_get(struct team *team, |
1365 | struct team_gsetter_ctx *ctx) | |
1366 | { | |
85d59a87 JP |
1367 | struct team_port *port = ctx->info->port; |
1368 | ||
1369 | ctx->data.bool_val = team_port_enabled(port); | |
acd69962 JP |
1370 | return 0; |
1371 | } | |
1372 | ||
1373 | static int team_port_en_option_set(struct team *team, | |
1374 | struct team_gsetter_ctx *ctx) | |
1375 | { | |
85d59a87 JP |
1376 | struct team_port *port = ctx->info->port; |
1377 | ||
acd69962 | 1378 | if (ctx->data.bool_val) |
85d59a87 | 1379 | team_port_enable(team, port); |
acd69962 | 1380 | else |
85d59a87 | 1381 | team_port_disable(team, port); |
acd69962 JP |
1382 | return 0; |
1383 | } | |
1384 | ||
71472ec1 JP |
1385 | static int team_user_linkup_option_get(struct team *team, |
1386 | struct team_gsetter_ctx *ctx) | |
1387 | { | |
85d59a87 JP |
1388 | struct team_port *port = ctx->info->port; |
1389 | ||
1390 | ctx->data.bool_val = port->user.linkup; | |
71472ec1 JP |
1391 | return 0; |
1392 | } | |
1393 | ||
f5e0d343 JP |
1394 | static void __team_carrier_check(struct team *team); |
1395 | ||
71472ec1 JP |
1396 | static int team_user_linkup_option_set(struct team *team, |
1397 | struct team_gsetter_ctx *ctx) | |
1398 | { | |
85d59a87 JP |
1399 | struct team_port *port = ctx->info->port; |
1400 | ||
1401 | port->user.linkup = ctx->data.bool_val; | |
1402 | team_refresh_port_linkup(port); | |
f5e0d343 | 1403 | __team_carrier_check(port->team); |
71472ec1 JP |
1404 | return 0; |
1405 | } | |
1406 | ||
1407 | static int team_user_linkup_en_option_get(struct team *team, | |
1408 | struct team_gsetter_ctx *ctx) | |
1409 | { | |
85d59a87 | 1410 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1411 | |
1412 | ctx->data.bool_val = port->user.linkup_enabled; | |
1413 | return 0; | |
1414 | } | |
1415 | ||
1416 | static int team_user_linkup_en_option_set(struct team *team, | |
1417 | struct team_gsetter_ctx *ctx) | |
1418 | { | |
85d59a87 | 1419 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1420 | |
1421 | port->user.linkup_enabled = ctx->data.bool_val; | |
85d59a87 | 1422 | team_refresh_port_linkup(port); |
f5e0d343 | 1423 | __team_carrier_check(port->team); |
71472ec1 JP |
1424 | return 0; |
1425 | } | |
1426 | ||
a86fc6b7 JP |
1427 | static int team_priority_option_get(struct team *team, |
1428 | struct team_gsetter_ctx *ctx) | |
1429 | { | |
1430 | struct team_port *port = ctx->info->port; | |
1431 | ||
1432 | ctx->data.s32_val = port->priority; | |
1433 | return 0; | |
1434 | } | |
1435 | ||
1436 | static int team_priority_option_set(struct team *team, | |
1437 | struct team_gsetter_ctx *ctx) | |
1438 | { | |
1439 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1440 | s32 priority = ctx->data.s32_val; |
a86fc6b7 | 1441 | |
6c31ff36 JP |
1442 | if (port->priority == priority) |
1443 | return 0; | |
1444 | port->priority = priority; | |
1445 | team_queue_override_port_prio_changed(team, port); | |
8ff5105a JP |
1446 | return 0; |
1447 | } | |
1448 | ||
1449 | static int team_queue_id_option_get(struct team *team, | |
1450 | struct team_gsetter_ctx *ctx) | |
1451 | { | |
1452 | struct team_port *port = ctx->info->port; | |
1453 | ||
1454 | ctx->data.u32_val = port->queue_id; | |
a86fc6b7 JP |
1455 | return 0; |
1456 | } | |
1457 | ||
8ff5105a JP |
1458 | static int team_queue_id_option_set(struct team *team, |
1459 | struct team_gsetter_ctx *ctx) | |
1460 | { | |
1461 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1462 | u16 new_queue_id = ctx->data.u32_val; |
8ff5105a | 1463 | |
6c31ff36 | 1464 | if (port->queue_id == new_queue_id) |
8ff5105a | 1465 | return 0; |
6c31ff36 | 1466 | if (new_queue_id >= team->dev->real_num_tx_queues) |
8ff5105a | 1467 | return -EINVAL; |
6c31ff36 | 1468 | team_queue_override_port_change_queue_id(team, port, new_queue_id); |
8ff5105a JP |
1469 | return 0; |
1470 | } | |
1471 | ||
358b8382 | 1472 | static const struct team_option team_options[] = { |
3d249d4c JP |
1473 | { |
1474 | .name = "mode", | |
1475 | .type = TEAM_OPTION_TYPE_STRING, | |
1476 | .getter = team_mode_option_get, | |
1477 | .setter = team_mode_option_set, | |
1478 | }, | |
fc423ff0 JP |
1479 | { |
1480 | .name = "notify_peers_count", | |
1481 | .type = TEAM_OPTION_TYPE_U32, | |
1482 | .getter = team_notify_peers_count_get, | |
1483 | .setter = team_notify_peers_count_set, | |
1484 | }, | |
1485 | { | |
1486 | .name = "notify_peers_interval", | |
1487 | .type = TEAM_OPTION_TYPE_U32, | |
1488 | .getter = team_notify_peers_interval_get, | |
1489 | .setter = team_notify_peers_interval_set, | |
1490 | }, | |
492b200e JP |
1491 | { |
1492 | .name = "mcast_rejoin_count", | |
1493 | .type = TEAM_OPTION_TYPE_U32, | |
1494 | .getter = team_mcast_rejoin_count_get, | |
1495 | .setter = team_mcast_rejoin_count_set, | |
1496 | }, | |
1497 | { | |
1498 | .name = "mcast_rejoin_interval", | |
1499 | .type = TEAM_OPTION_TYPE_U32, | |
1500 | .getter = team_mcast_rejoin_interval_get, | |
1501 | .setter = team_mcast_rejoin_interval_set, | |
1502 | }, | |
acd69962 JP |
1503 | { |
1504 | .name = "enabled", | |
1505 | .type = TEAM_OPTION_TYPE_BOOL, | |
1506 | .per_port = true, | |
1507 | .getter = team_port_en_option_get, | |
1508 | .setter = team_port_en_option_set, | |
1509 | }, | |
71472ec1 JP |
1510 | { |
1511 | .name = "user_linkup", | |
1512 | .type = TEAM_OPTION_TYPE_BOOL, | |
1513 | .per_port = true, | |
1514 | .getter = team_user_linkup_option_get, | |
1515 | .setter = team_user_linkup_option_set, | |
1516 | }, | |
1517 | { | |
1518 | .name = "user_linkup_enabled", | |
1519 | .type = TEAM_OPTION_TYPE_BOOL, | |
1520 | .per_port = true, | |
1521 | .getter = team_user_linkup_en_option_get, | |
1522 | .setter = team_user_linkup_en_option_set, | |
1523 | }, | |
a86fc6b7 JP |
1524 | { |
1525 | .name = "priority", | |
1526 | .type = TEAM_OPTION_TYPE_S32, | |
1527 | .per_port = true, | |
1528 | .getter = team_priority_option_get, | |
1529 | .setter = team_priority_option_set, | |
1530 | }, | |
8ff5105a JP |
1531 | { |
1532 | .name = "queue_id", | |
1533 | .type = TEAM_OPTION_TYPE_U32, | |
1534 | .per_port = true, | |
1535 | .getter = team_queue_id_option_get, | |
1536 | .setter = team_queue_id_option_set, | |
1537 | }, | |
3d249d4c JP |
1538 | }; |
1539 | ||
6c85f2bd JP |
1540 | static struct lock_class_key team_netdev_xmit_lock_key; |
1541 | static struct lock_class_key team_netdev_addr_lock_key; | |
b3c581d5 | 1542 | static struct lock_class_key team_tx_busylock_key; |
6c85f2bd JP |
1543 | |
1544 | static void team_set_lockdep_class_one(struct net_device *dev, | |
1545 | struct netdev_queue *txq, | |
1546 | void *unused) | |
1547 | { | |
1548 | lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); | |
1549 | } | |
1550 | ||
1551 | static void team_set_lockdep_class(struct net_device *dev) | |
1552 | { | |
1553 | lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); | |
1554 | netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); | |
b3c581d5 | 1555 | dev->qdisc_tx_busylock = &team_tx_busylock_key; |
6c85f2bd JP |
1556 | } |
1557 | ||
3d249d4c JP |
1558 | static int team_init(struct net_device *dev) |
1559 | { | |
1560 | struct team *team = netdev_priv(dev); | |
1561 | int i; | |
358b8382 | 1562 | int err; |
3d249d4c JP |
1563 | |
1564 | team->dev = dev; | |
61dc3461 | 1565 | mutex_init(&team->lock); |
d299cd51 | 1566 | team_set_no_mode(team); |
3d249d4c | 1567 | |
1c213bd2 | 1568 | team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); |
3d249d4c JP |
1569 | if (!team->pcpu_stats) |
1570 | return -ENOMEM; | |
1571 | ||
1572 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) | |
19a0b58e | 1573 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
3d249d4c | 1574 | INIT_LIST_HEAD(&team->port_list); |
8ff5105a JP |
1575 | err = team_queue_override_init(team); |
1576 | if (err) | |
1577 | goto err_team_queue_override_init; | |
3d249d4c JP |
1578 | |
1579 | team_adjust_ops(team); | |
1580 | ||
1581 | INIT_LIST_HEAD(&team->option_list); | |
80f7c668 | 1582 | INIT_LIST_HEAD(&team->option_inst_list); |
fc423ff0 JP |
1583 | |
1584 | team_notify_peers_init(team); | |
492b200e | 1585 | team_mcast_rejoin_init(team); |
fc423ff0 | 1586 | |
358b8382 JP |
1587 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
1588 | if (err) | |
1589 | goto err_options_register; | |
3d249d4c JP |
1590 | netif_carrier_off(dev); |
1591 | ||
6c85f2bd JP |
1592 | team_set_lockdep_class(dev); |
1593 | ||
3d249d4c | 1594 | return 0; |
358b8382 JP |
1595 | |
1596 | err_options_register: | |
492b200e | 1597 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1598 | team_notify_peers_fini(team); |
8ff5105a JP |
1599 | team_queue_override_fini(team); |
1600 | err_team_queue_override_init: | |
358b8382 JP |
1601 | free_percpu(team->pcpu_stats); |
1602 | ||
1603 | return err; | |
3d249d4c JP |
1604 | } |
1605 | ||
1606 | static void team_uninit(struct net_device *dev) | |
1607 | { | |
1608 | struct team *team = netdev_priv(dev); | |
1609 | struct team_port *port; | |
1610 | struct team_port *tmp; | |
1611 | ||
61dc3461 | 1612 | mutex_lock(&team->lock); |
3d249d4c JP |
1613 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
1614 | team_port_del(team, port->dev); | |
1615 | ||
1616 | __team_change_mode(team, NULL); /* cleanup */ | |
1617 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); | |
492b200e | 1618 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1619 | team_notify_peers_fini(team); |
8ff5105a | 1620 | team_queue_override_fini(team); |
61dc3461 | 1621 | mutex_unlock(&team->lock); |
3d249d4c JP |
1622 | } |
1623 | ||
1624 | static void team_destructor(struct net_device *dev) | |
1625 | { | |
1626 | struct team *team = netdev_priv(dev); | |
1627 | ||
1628 | free_percpu(team->pcpu_stats); | |
1629 | free_netdev(dev); | |
1630 | } | |
1631 | ||
1632 | static int team_open(struct net_device *dev) | |
1633 | { | |
3d249d4c JP |
1634 | return 0; |
1635 | } | |
1636 | ||
1637 | static int team_close(struct net_device *dev) | |
1638 | { | |
3d249d4c JP |
1639 | return 0; |
1640 | } | |
1641 | ||
1642 | /* | |
1643 | * note: already called with rcu_read_lock | |
1644 | */ | |
1645 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) | |
1646 | { | |
1647 | struct team *team = netdev_priv(dev); | |
8ff5105a | 1648 | bool tx_success; |
3d249d4c JP |
1649 | unsigned int len = skb->len; |
1650 | ||
8ff5105a JP |
1651 | tx_success = team_queue_override_transmit(team, skb); |
1652 | if (!tx_success) | |
1653 | tx_success = team->ops.transmit(team, skb); | |
3d249d4c JP |
1654 | if (tx_success) { |
1655 | struct team_pcpu_stats *pcpu_stats; | |
1656 | ||
1657 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
1658 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1659 | pcpu_stats->tx_packets++; | |
1660 | pcpu_stats->tx_bytes += len; | |
1661 | u64_stats_update_end(&pcpu_stats->syncp); | |
1662 | } else { | |
1663 | this_cpu_inc(team->pcpu_stats->tx_dropped); | |
1664 | } | |
1665 | ||
1666 | return NETDEV_TX_OK; | |
1667 | } | |
1668 | ||
f663dd9a | 1669 | static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 1670 | void *accel_priv, select_queue_fallback_t fallback) |
6c85f2bd JP |
1671 | { |
1672 | /* | |
1673 | * This helper function exists to help dev_pick_tx get the correct | |
1674 | * destination queue. Using a helper function skips a call to | |
1675 | * skb_tx_hash and will put the skbs in the queue we expect on their | |
1676 | * way down to the team driver. | |
1677 | */ | |
1678 | u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; | |
1679 | ||
1680 | /* | |
1681 | * Save the original txq to restore before passing to the driver | |
1682 | */ | |
1683 | qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; | |
1684 | ||
1685 | if (unlikely(txq >= dev->real_num_tx_queues)) { | |
1686 | do { | |
1687 | txq -= dev->real_num_tx_queues; | |
1688 | } while (txq >= dev->real_num_tx_queues); | |
1689 | } | |
1690 | return txq; | |
1691 | } | |
1692 | ||
3d249d4c JP |
1693 | static void team_change_rx_flags(struct net_device *dev, int change) |
1694 | { | |
1695 | struct team *team = netdev_priv(dev); | |
1696 | struct team_port *port; | |
1697 | int inc; | |
1698 | ||
1699 | rcu_read_lock(); | |
1700 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1701 | if (change & IFF_PROMISC) { | |
1702 | inc = dev->flags & IFF_PROMISC ? 1 : -1; | |
1703 | dev_set_promiscuity(port->dev, inc); | |
1704 | } | |
1705 | if (change & IFF_ALLMULTI) { | |
1706 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; | |
1707 | dev_set_allmulti(port->dev, inc); | |
1708 | } | |
1709 | } | |
1710 | rcu_read_unlock(); | |
1711 | } | |
1712 | ||
1713 | static void team_set_rx_mode(struct net_device *dev) | |
1714 | { | |
1715 | struct team *team = netdev_priv(dev); | |
1716 | struct team_port *port; | |
1717 | ||
1718 | rcu_read_lock(); | |
1719 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
72b27032 VY |
1720 | dev_uc_sync_multiple(port->dev, dev); |
1721 | dev_mc_sync_multiple(port->dev, dev); | |
3d249d4c JP |
1722 | } |
1723 | rcu_read_unlock(); | |
1724 | } | |
1725 | ||
1726 | static int team_set_mac_address(struct net_device *dev, void *p) | |
1727 | { | |
1d76efe1 | 1728 | struct sockaddr *addr = p; |
3d249d4c JP |
1729 | struct team *team = netdev_priv(dev); |
1730 | struct team_port *port; | |
3d249d4c | 1731 | |
1d76efe1 JP |
1732 | if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) |
1733 | return -EADDRNOTAVAIL; | |
1734 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
3d249d4c JP |
1735 | rcu_read_lock(); |
1736 | list_for_each_entry_rcu(port, &team->port_list, list) | |
1d76efe1 JP |
1737 | if (team->ops.port_change_dev_addr) |
1738 | team->ops.port_change_dev_addr(team, port); | |
3d249d4c JP |
1739 | rcu_read_unlock(); |
1740 | return 0; | |
1741 | } | |
1742 | ||
1743 | static int team_change_mtu(struct net_device *dev, int new_mtu) | |
1744 | { | |
1745 | struct team *team = netdev_priv(dev); | |
1746 | struct team_port *port; | |
1747 | int err; | |
1748 | ||
1749 | /* | |
1750 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1751 | * to traverse list in reverse under rcu_read_lock | |
1752 | */ | |
61dc3461 | 1753 | mutex_lock(&team->lock); |
9d0d68fa | 1754 | team->port_mtu_change_allowed = true; |
3d249d4c JP |
1755 | list_for_each_entry(port, &team->port_list, list) { |
1756 | err = dev_set_mtu(port->dev, new_mtu); | |
1757 | if (err) { | |
1758 | netdev_err(dev, "Device %s failed to change mtu", | |
1759 | port->dev->name); | |
1760 | goto unwind; | |
1761 | } | |
1762 | } | |
9d0d68fa | 1763 | team->port_mtu_change_allowed = false; |
61dc3461 | 1764 | mutex_unlock(&team->lock); |
3d249d4c JP |
1765 | |
1766 | dev->mtu = new_mtu; | |
1767 | ||
1768 | return 0; | |
1769 | ||
1770 | unwind: | |
1771 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1772 | dev_set_mtu(port->dev, dev->mtu); | |
9d0d68fa | 1773 | team->port_mtu_change_allowed = false; |
61dc3461 | 1774 | mutex_unlock(&team->lock); |
3d249d4c JP |
1775 | |
1776 | return err; | |
1777 | } | |
1778 | ||
1779 | static struct rtnl_link_stats64 * | |
1780 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
1781 | { | |
1782 | struct team *team = netdev_priv(dev); | |
1783 | struct team_pcpu_stats *p; | |
1784 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; | |
1785 | u32 rx_dropped = 0, tx_dropped = 0; | |
1786 | unsigned int start; | |
1787 | int i; | |
1788 | ||
1789 | for_each_possible_cpu(i) { | |
1790 | p = per_cpu_ptr(team->pcpu_stats, i); | |
1791 | do { | |
57a7744e | 1792 | start = u64_stats_fetch_begin_irq(&p->syncp); |
3d249d4c JP |
1793 | rx_packets = p->rx_packets; |
1794 | rx_bytes = p->rx_bytes; | |
1795 | rx_multicast = p->rx_multicast; | |
1796 | tx_packets = p->tx_packets; | |
1797 | tx_bytes = p->tx_bytes; | |
57a7744e | 1798 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
3d249d4c JP |
1799 | |
1800 | stats->rx_packets += rx_packets; | |
1801 | stats->rx_bytes += rx_bytes; | |
1802 | stats->multicast += rx_multicast; | |
1803 | stats->tx_packets += tx_packets; | |
1804 | stats->tx_bytes += tx_bytes; | |
1805 | /* | |
1806 | * rx_dropped & tx_dropped are u32, updated | |
1807 | * without syncp protection. | |
1808 | */ | |
1809 | rx_dropped += p->rx_dropped; | |
1810 | tx_dropped += p->tx_dropped; | |
1811 | } | |
1812 | stats->rx_dropped = rx_dropped; | |
1813 | stats->tx_dropped = tx_dropped; | |
1814 | return stats; | |
1815 | } | |
1816 | ||
80d5c368 | 1817 | static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1818 | { |
1819 | struct team *team = netdev_priv(dev); | |
1820 | struct team_port *port; | |
87002b03 | 1821 | int err; |
3d249d4c | 1822 | |
87002b03 JP |
1823 | /* |
1824 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1825 | * to traverse list in reverse under rcu_read_lock | |
1826 | */ | |
1827 | mutex_lock(&team->lock); | |
1828 | list_for_each_entry(port, &team->port_list, list) { | |
80d5c368 | 1829 | err = vlan_vid_add(port->dev, proto, vid); |
87002b03 JP |
1830 | if (err) |
1831 | goto unwind; | |
3d249d4c | 1832 | } |
87002b03 | 1833 | mutex_unlock(&team->lock); |
8e586137 JP |
1834 | |
1835 | return 0; | |
87002b03 JP |
1836 | |
1837 | unwind: | |
1838 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
80d5c368 | 1839 | vlan_vid_del(port->dev, proto, vid); |
87002b03 JP |
1840 | mutex_unlock(&team->lock); |
1841 | ||
1842 | return err; | |
3d249d4c JP |
1843 | } |
1844 | ||
80d5c368 | 1845 | static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1846 | { |
1847 | struct team *team = netdev_priv(dev); | |
1848 | struct team_port *port; | |
1849 | ||
1850 | rcu_read_lock(); | |
87002b03 | 1851 | list_for_each_entry_rcu(port, &team->port_list, list) |
80d5c368 | 1852 | vlan_vid_del(port->dev, proto, vid); |
3d249d4c | 1853 | rcu_read_unlock(); |
8e586137 JP |
1854 | |
1855 | return 0; | |
3d249d4c JP |
1856 | } |
1857 | ||
bd2d0837 JP |
1858 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1859 | static void team_poll_controller(struct net_device *dev) | |
1860 | { | |
1861 | } | |
1862 | ||
1863 | static void __team_netpoll_cleanup(struct team *team) | |
1864 | { | |
1865 | struct team_port *port; | |
1866 | ||
1867 | list_for_each_entry(port, &team->port_list, list) | |
1868 | team_port_disable_netpoll(port); | |
1869 | } | |
1870 | ||
1871 | static void team_netpoll_cleanup(struct net_device *dev) | |
1872 | { | |
1873 | struct team *team = netdev_priv(dev); | |
1874 | ||
1875 | mutex_lock(&team->lock); | |
1876 | __team_netpoll_cleanup(team); | |
1877 | mutex_unlock(&team->lock); | |
1878 | } | |
1879 | ||
1880 | static int team_netpoll_setup(struct net_device *dev, | |
a8779ec1 | 1881 | struct netpoll_info *npifo) |
bd2d0837 JP |
1882 | { |
1883 | struct team *team = netdev_priv(dev); | |
1884 | struct team_port *port; | |
3324d024 | 1885 | int err = 0; |
bd2d0837 JP |
1886 | |
1887 | mutex_lock(&team->lock); | |
1888 | list_for_each_entry(port, &team->port_list, list) { | |
a8779ec1 | 1889 | err = team_port_enable_netpoll(team, port); |
bd2d0837 JP |
1890 | if (err) { |
1891 | __team_netpoll_cleanup(team); | |
1892 | break; | |
1893 | } | |
1894 | } | |
1895 | mutex_unlock(&team->lock); | |
1896 | return err; | |
1897 | } | |
1898 | #endif | |
1899 | ||
3d249d4c JP |
1900 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev) |
1901 | { | |
1902 | struct team *team = netdev_priv(dev); | |
1903 | int err; | |
1904 | ||
61dc3461 | 1905 | mutex_lock(&team->lock); |
3d249d4c | 1906 | err = team_port_add(team, port_dev); |
61dc3461 | 1907 | mutex_unlock(&team->lock); |
3d249d4c JP |
1908 | return err; |
1909 | } | |
1910 | ||
1911 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) | |
1912 | { | |
1913 | struct team *team = netdev_priv(dev); | |
1914 | int err; | |
1915 | ||
61dc3461 | 1916 | mutex_lock(&team->lock); |
3d249d4c | 1917 | err = team_port_del(team, port_dev); |
61dc3461 | 1918 | mutex_unlock(&team->lock); |
3d249d4c JP |
1919 | return err; |
1920 | } | |
1921 | ||
234a8fd4 JP |
1922 | static netdev_features_t team_fix_features(struct net_device *dev, |
1923 | netdev_features_t features) | |
1924 | { | |
1925 | struct team_port *port; | |
1926 | struct team *team = netdev_priv(dev); | |
1927 | netdev_features_t mask; | |
1928 | ||
a16a8ee7 | 1929 | mask = features | NETIF_F_HW_SWITCH_OFFLOAD; |
234a8fd4 JP |
1930 | features &= ~NETIF_F_ONE_FOR_ALL; |
1931 | features |= NETIF_F_ALL_FOR_ALL; | |
1932 | ||
1933 | rcu_read_lock(); | |
1934 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1935 | features = netdev_increment_features(features, | |
1936 | port->dev->features, | |
1937 | mask); | |
1938 | } | |
1939 | rcu_read_unlock(); | |
1940 | return features; | |
1941 | } | |
1942 | ||
4cafe373 FL |
1943 | static int team_change_carrier(struct net_device *dev, bool new_carrier) |
1944 | { | |
e185483e FL |
1945 | struct team *team = netdev_priv(dev); |
1946 | ||
1947 | team->user_carrier_enabled = true; | |
1948 | ||
4cafe373 FL |
1949 | if (new_carrier) |
1950 | netif_carrier_on(dev); | |
1951 | else | |
1952 | netif_carrier_off(dev); | |
1953 | return 0; | |
1954 | } | |
1955 | ||
3d249d4c JP |
1956 | static const struct net_device_ops team_netdev_ops = { |
1957 | .ndo_init = team_init, | |
1958 | .ndo_uninit = team_uninit, | |
1959 | .ndo_open = team_open, | |
1960 | .ndo_stop = team_close, | |
1961 | .ndo_start_xmit = team_xmit, | |
6c85f2bd | 1962 | .ndo_select_queue = team_select_queue, |
3d249d4c JP |
1963 | .ndo_change_rx_flags = team_change_rx_flags, |
1964 | .ndo_set_rx_mode = team_set_rx_mode, | |
1965 | .ndo_set_mac_address = team_set_mac_address, | |
1966 | .ndo_change_mtu = team_change_mtu, | |
1967 | .ndo_get_stats64 = team_get_stats64, | |
1968 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, | |
1969 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, | |
bd2d0837 JP |
1970 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1971 | .ndo_poll_controller = team_poll_controller, | |
1972 | .ndo_netpoll_setup = team_netpoll_setup, | |
1973 | .ndo_netpoll_cleanup = team_netpoll_cleanup, | |
1974 | #endif | |
3d249d4c JP |
1975 | .ndo_add_slave = team_add_slave, |
1976 | .ndo_del_slave = team_del_slave, | |
234a8fd4 | 1977 | .ndo_fix_features = team_fix_features, |
4cafe373 | 1978 | .ndo_change_carrier = team_change_carrier, |
a16a8ee7 RP |
1979 | .ndo_bridge_setlink = ndo_dflt_netdev_switch_port_bridge_setlink, |
1980 | .ndo_bridge_dellink = ndo_dflt_netdev_switch_port_bridge_dellink, | |
3d249d4c JP |
1981 | }; |
1982 | ||
7f51c587 FL |
1983 | /*********************** |
1984 | * ethtool interface | |
1985 | ***********************/ | |
1986 | ||
1987 | static void team_ethtool_get_drvinfo(struct net_device *dev, | |
1988 | struct ethtool_drvinfo *drvinfo) | |
1989 | { | |
3066af58 FL |
1990 | strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
1991 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
7f51c587 FL |
1992 | } |
1993 | ||
1994 | static const struct ethtool_ops team_ethtool_ops = { | |
1995 | .get_drvinfo = team_ethtool_get_drvinfo, | |
1996 | .get_link = ethtool_op_get_link, | |
1997 | }; | |
3d249d4c JP |
1998 | |
1999 | /*********************** | |
2000 | * rt netlink interface | |
2001 | ***********************/ | |
2002 | ||
1d76efe1 JP |
2003 | static void team_setup_by_port(struct net_device *dev, |
2004 | struct net_device *port_dev) | |
2005 | { | |
2006 | dev->header_ops = port_dev->header_ops; | |
2007 | dev->type = port_dev->type; | |
2008 | dev->hard_header_len = port_dev->hard_header_len; | |
2009 | dev->addr_len = port_dev->addr_len; | |
2010 | dev->mtu = port_dev->mtu; | |
2011 | memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); | |
93af7357 | 2012 | eth_hw_addr_inherit(dev, port_dev); |
1d76efe1 JP |
2013 | } |
2014 | ||
2015 | static int team_dev_type_check_change(struct net_device *dev, | |
2016 | struct net_device *port_dev) | |
2017 | { | |
2018 | struct team *team = netdev_priv(dev); | |
2019 | char *portname = port_dev->name; | |
2020 | int err; | |
2021 | ||
2022 | if (dev->type == port_dev->type) | |
2023 | return 0; | |
2024 | if (!list_empty(&team->port_list)) { | |
2025 | netdev_err(dev, "Device %s is of different type\n", portname); | |
2026 | return -EBUSY; | |
2027 | } | |
2028 | err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); | |
2029 | err = notifier_to_errno(err); | |
2030 | if (err) { | |
2031 | netdev_err(dev, "Refused to change device type\n"); | |
2032 | return err; | |
2033 | } | |
2034 | dev_uc_flush(dev); | |
2035 | dev_mc_flush(dev); | |
2036 | team_setup_by_port(dev, port_dev); | |
2037 | call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); | |
2038 | return 0; | |
2039 | } | |
2040 | ||
3d249d4c JP |
2041 | static void team_setup(struct net_device *dev) |
2042 | { | |
2043 | ether_setup(dev); | |
2044 | ||
2045 | dev->netdev_ops = &team_netdev_ops; | |
7f51c587 | 2046 | dev->ethtool_ops = &team_ethtool_ops; |
3d249d4c JP |
2047 | dev->destructor = team_destructor; |
2048 | dev->tx_queue_len = 0; | |
2049 | dev->flags |= IFF_MULTICAST; | |
2050 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); | |
2051 | ||
2052 | /* | |
2053 | * Indicate we support unicast address filtering. That way core won't | |
2054 | * bring us to promisc mode in case a unicast addr is added. | |
2055 | * Let this up to underlay drivers. | |
2056 | */ | |
5a1d1c8c | 2057 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
3d249d4c JP |
2058 | |
2059 | dev->features |= NETIF_F_LLTX; | |
2060 | dev->features |= NETIF_F_GRO; | |
99301ba1 WC |
2061 | |
2062 | /* Don't allow team devices to change network namespaces. */ | |
2063 | dev->features |= NETIF_F_NETNS_LOCAL; | |
2064 | ||
3ed71471 | 2065 | dev->hw_features = TEAM_VLAN_FEATURES | |
f646968f PM |
2066 | NETIF_F_HW_VLAN_CTAG_TX | |
2067 | NETIF_F_HW_VLAN_CTAG_RX | | |
2068 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
3d249d4c | 2069 | |
3ed71471 | 2070 | dev->hw_features &= ~(NETIF_F_ALL_CSUM & ~NETIF_F_HW_CSUM); |
3d249d4c JP |
2071 | dev->features |= dev->hw_features; |
2072 | } | |
2073 | ||
2074 | static int team_newlink(struct net *src_net, struct net_device *dev, | |
2075 | struct nlattr *tb[], struct nlattr *data[]) | |
2076 | { | |
3d249d4c | 2077 | if (tb[IFLA_ADDRESS] == NULL) |
7ce5d222 | 2078 | eth_hw_addr_random(dev); |
3d249d4c | 2079 | |
ff204cce | 2080 | return register_netdevice(dev); |
3d249d4c JP |
2081 | } |
2082 | ||
2083 | static int team_validate(struct nlattr *tb[], struct nlattr *data[]) | |
2084 | { | |
2085 | if (tb[IFLA_ADDRESS]) { | |
2086 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
2087 | return -EINVAL; | |
2088 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
2089 | return -EADDRNOTAVAIL; | |
2090 | } | |
2091 | return 0; | |
2092 | } | |
2093 | ||
6c85f2bd JP |
2094 | static unsigned int team_get_num_tx_queues(void) |
2095 | { | |
2096 | return TEAM_DEFAULT_NUM_TX_QUEUES; | |
2097 | } | |
2098 | ||
2099 | static unsigned int team_get_num_rx_queues(void) | |
2100 | { | |
2101 | return TEAM_DEFAULT_NUM_RX_QUEUES; | |
2102 | } | |
2103 | ||
3d249d4c | 2104 | static struct rtnl_link_ops team_link_ops __read_mostly = { |
6c85f2bd JP |
2105 | .kind = DRV_NAME, |
2106 | .priv_size = sizeof(struct team), | |
2107 | .setup = team_setup, | |
2108 | .newlink = team_newlink, | |
2109 | .validate = team_validate, | |
2110 | .get_num_tx_queues = team_get_num_tx_queues, | |
2111 | .get_num_rx_queues = team_get_num_rx_queues, | |
3d249d4c JP |
2112 | }; |
2113 | ||
2114 | ||
2115 | /*********************************** | |
2116 | * Generic netlink custom interface | |
2117 | ***********************************/ | |
2118 | ||
2119 | static struct genl_family team_nl_family = { | |
2120 | .id = GENL_ID_GENERATE, | |
2121 | .name = TEAM_GENL_NAME, | |
2122 | .version = TEAM_GENL_VERSION, | |
2123 | .maxattr = TEAM_ATTR_MAX, | |
2124 | .netnsok = true, | |
2125 | }; | |
2126 | ||
2127 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { | |
2128 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2129 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, | |
2130 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, | |
2131 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, | |
2132 | }; | |
2133 | ||
2134 | static const struct nla_policy | |
2135 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { | |
2136 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2137 | [TEAM_ATTR_OPTION_NAME] = { | |
2138 | .type = NLA_STRING, | |
2139 | .len = TEAM_STRING_MAX_LEN, | |
2140 | }, | |
2141 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, | |
2142 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, | |
2615598f | 2143 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
3d249d4c JP |
2144 | }; |
2145 | ||
2146 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) | |
2147 | { | |
2148 | struct sk_buff *msg; | |
2149 | void *hdr; | |
2150 | int err; | |
2151 | ||
58050fce | 2152 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
2153 | if (!msg) |
2154 | return -ENOMEM; | |
2155 | ||
15e47304 | 2156 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, |
3d249d4c | 2157 | &team_nl_family, 0, TEAM_CMD_NOOP); |
a326e6dd WY |
2158 | if (!hdr) { |
2159 | err = -EMSGSIZE; | |
3d249d4c JP |
2160 | goto err_msg_put; |
2161 | } | |
2162 | ||
2163 | genlmsg_end(msg, hdr); | |
2164 | ||
15e47304 | 2165 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); |
3d249d4c JP |
2166 | |
2167 | err_msg_put: | |
2168 | nlmsg_free(msg); | |
2169 | ||
2170 | return err; | |
2171 | } | |
2172 | ||
2173 | /* | |
2174 | * Netlink cmd functions should be locked by following two functions. | |
8c0713a5 | 2175 | * Since dev gets held here, that ensures dev won't disappear in between. |
3d249d4c JP |
2176 | */ |
2177 | static struct team *team_nl_team_get(struct genl_info *info) | |
2178 | { | |
2179 | struct net *net = genl_info_net(info); | |
2180 | int ifindex; | |
2181 | struct net_device *dev; | |
2182 | struct team *team; | |
2183 | ||
2184 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) | |
2185 | return NULL; | |
2186 | ||
2187 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); | |
8c0713a5 | 2188 | dev = dev_get_by_index(net, ifindex); |
3d249d4c | 2189 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
8c0713a5 JP |
2190 | if (dev) |
2191 | dev_put(dev); | |
3d249d4c JP |
2192 | return NULL; |
2193 | } | |
2194 | ||
2195 | team = netdev_priv(dev); | |
61dc3461 | 2196 | mutex_lock(&team->lock); |
3d249d4c JP |
2197 | return team; |
2198 | } | |
2199 | ||
2200 | static void team_nl_team_put(struct team *team) | |
2201 | { | |
61dc3461 | 2202 | mutex_unlock(&team->lock); |
8c0713a5 | 2203 | dev_put(team->dev); |
3d249d4c JP |
2204 | } |
2205 | ||
9b00cf2d | 2206 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
15e47304 | 2207 | struct team *team, u32 portid); |
9b00cf2d | 2208 | |
15e47304 | 2209 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) |
9b00cf2d | 2210 | { |
15e47304 | 2211 | return genlmsg_unicast(dev_net(team->dev), skb, portid); |
9b00cf2d JP |
2212 | } |
2213 | ||
01048d9a JP |
2214 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
2215 | struct team_option_inst *opt_inst) | |
2216 | { | |
2217 | struct nlattr *option_item; | |
2218 | struct team_option *option = opt_inst->option; | |
9b00cf2d | 2219 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
01048d9a JP |
2220 | struct team_gsetter_ctx ctx; |
2221 | int err; | |
2222 | ||
9b00cf2d JP |
2223 | ctx.info = opt_inst_info; |
2224 | err = team_option_get(team, opt_inst, &ctx); | |
2225 | if (err) | |
2226 | return err; | |
2227 | ||
01048d9a JP |
2228 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
2229 | if (!option_item) | |
9b00cf2d | 2230 | return -EMSGSIZE; |
01048d9a | 2231 | |
9b00cf2d JP |
2232 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
2233 | goto nest_cancel; | |
01048d9a JP |
2234 | if (opt_inst_info->port && |
2235 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, | |
2236 | opt_inst_info->port->dev->ifindex)) | |
9b00cf2d | 2237 | goto nest_cancel; |
01048d9a JP |
2238 | if (opt_inst->option->array_size && |
2239 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, | |
2240 | opt_inst_info->array_index)) | |
9b00cf2d | 2241 | goto nest_cancel; |
01048d9a JP |
2242 | |
2243 | switch (option->type) { | |
2244 | case TEAM_OPTION_TYPE_U32: | |
2245 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) | |
9b00cf2d | 2246 | goto nest_cancel; |
01048d9a | 2247 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
9b00cf2d | 2248 | goto nest_cancel; |
01048d9a JP |
2249 | break; |
2250 | case TEAM_OPTION_TYPE_STRING: | |
2251 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) | |
9b00cf2d | 2252 | goto nest_cancel; |
01048d9a JP |
2253 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
2254 | ctx.data.str_val)) | |
9b00cf2d | 2255 | goto nest_cancel; |
01048d9a JP |
2256 | break; |
2257 | case TEAM_OPTION_TYPE_BINARY: | |
2258 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) | |
9b00cf2d | 2259 | goto nest_cancel; |
01048d9a JP |
2260 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
2261 | ctx.data.bin_val.ptr)) | |
9b00cf2d | 2262 | goto nest_cancel; |
01048d9a JP |
2263 | break; |
2264 | case TEAM_OPTION_TYPE_BOOL: | |
2265 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) | |
9b00cf2d | 2266 | goto nest_cancel; |
01048d9a JP |
2267 | if (ctx.data.bool_val && |
2268 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) | |
9b00cf2d | 2269 | goto nest_cancel; |
01048d9a | 2270 | break; |
69821638 JP |
2271 | case TEAM_OPTION_TYPE_S32: |
2272 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) | |
2273 | goto nest_cancel; | |
2274 | if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) | |
2275 | goto nest_cancel; | |
2276 | break; | |
01048d9a JP |
2277 | default: |
2278 | BUG(); | |
2279 | } | |
9b00cf2d JP |
2280 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
2281 | goto nest_cancel; | |
2282 | if (opt_inst->changed) { | |
2283 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) | |
2284 | goto nest_cancel; | |
2285 | opt_inst->changed = false; | |
2286 | } | |
01048d9a JP |
2287 | nla_nest_end(skb, option_item); |
2288 | return 0; | |
2289 | ||
9b00cf2d JP |
2290 | nest_cancel: |
2291 | nla_nest_cancel(skb, option_item); | |
2292 | return -EMSGSIZE; | |
2293 | } | |
2294 | ||
2295 | static int __send_and_alloc_skb(struct sk_buff **pskb, | |
15e47304 | 2296 | struct team *team, u32 portid, |
9b00cf2d JP |
2297 | team_nl_send_func_t *send_func) |
2298 | { | |
2299 | int err; | |
2300 | ||
2301 | if (*pskb) { | |
15e47304 | 2302 | err = send_func(*pskb, team, portid); |
9b00cf2d JP |
2303 | if (err) |
2304 | return err; | |
2305 | } | |
58050fce | 2306 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9b00cf2d JP |
2307 | if (!*pskb) |
2308 | return -ENOMEM; | |
2309 | return 0; | |
01048d9a JP |
2310 | } |
2311 | ||
15e47304 | 2312 | static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, |
9b00cf2d | 2313 | int flags, team_nl_send_func_t *send_func, |
01048d9a | 2314 | struct list_head *sel_opt_inst_list) |
3d249d4c JP |
2315 | { |
2316 | struct nlattr *option_list; | |
9b00cf2d | 2317 | struct nlmsghdr *nlh; |
3d249d4c | 2318 | void *hdr; |
80f7c668 JP |
2319 | struct team_option_inst *opt_inst; |
2320 | int err; | |
9b00cf2d JP |
2321 | struct sk_buff *skb = NULL; |
2322 | bool incomplete; | |
2323 | int i; | |
3d249d4c | 2324 | |
9b00cf2d JP |
2325 | opt_inst = list_first_entry(sel_opt_inst_list, |
2326 | struct team_option_inst, tmp_list); | |
2327 | ||
2328 | start_again: | |
15e47304 | 2329 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2330 | if (err) |
2331 | return err; | |
2332 | ||
15e47304 | 2333 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
3d249d4c | 2334 | TEAM_CMD_OPTIONS_GET); |
a326e6dd WY |
2335 | if (!hdr) |
2336 | return -EMSGSIZE; | |
3d249d4c | 2337 | |
86ebb02d DM |
2338 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2339 | goto nla_put_failure; | |
3d249d4c JP |
2340 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
2341 | if (!option_list) | |
75db986a | 2342 | goto nla_put_failure; |
3d249d4c | 2343 | |
9b00cf2d JP |
2344 | i = 0; |
2345 | incomplete = false; | |
2346 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { | |
01048d9a | 2347 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
9b00cf2d JP |
2348 | if (err) { |
2349 | if (err == -EMSGSIZE) { | |
2350 | if (!i) | |
2351 | goto errout; | |
2352 | incomplete = true; | |
2353 | break; | |
2354 | } | |
01048d9a | 2355 | goto errout; |
9b00cf2d JP |
2356 | } |
2357 | i++; | |
3d249d4c JP |
2358 | } |
2359 | ||
2360 | nla_nest_end(skb, option_list); | |
9b00cf2d JP |
2361 | genlmsg_end(skb, hdr); |
2362 | if (incomplete) | |
2363 | goto start_again; | |
2364 | ||
2365 | send_done: | |
15e47304 | 2366 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
9b00cf2d | 2367 | if (!nlh) { |
15e47304 | 2368 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2369 | if (err) |
2370 | goto errout; | |
2371 | goto send_done; | |
2372 | } | |
2373 | ||
15e47304 | 2374 | return send_func(skb, team, portid); |
3d249d4c JP |
2375 | |
2376 | nla_put_failure: | |
80f7c668 JP |
2377 | err = -EMSGSIZE; |
2378 | errout: | |
3d249d4c | 2379 | genlmsg_cancel(skb, hdr); |
9b00cf2d | 2380 | nlmsg_free(skb); |
80f7c668 | 2381 | return err; |
3d249d4c JP |
2382 | } |
2383 | ||
3d249d4c JP |
2384 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
2385 | { | |
2386 | struct team *team; | |
9b00cf2d | 2387 | struct team_option_inst *opt_inst; |
3d249d4c | 2388 | int err; |
9b00cf2d | 2389 | LIST_HEAD(sel_opt_inst_list); |
3d249d4c JP |
2390 | |
2391 | team = team_nl_team_get(info); | |
2392 | if (!team) | |
2393 | return -EINVAL; | |
2394 | ||
9b00cf2d JP |
2395 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
2396 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
15e47304 | 2397 | err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, |
9b00cf2d JP |
2398 | NLM_F_ACK, team_nl_send_unicast, |
2399 | &sel_opt_inst_list); | |
3d249d4c JP |
2400 | |
2401 | team_nl_team_put(team); | |
2402 | ||
2403 | return err; | |
2404 | } | |
2405 | ||
2fcdb2c9 JP |
2406 | static int team_nl_send_event_options_get(struct team *team, |
2407 | struct list_head *sel_opt_inst_list); | |
2408 | ||
3d249d4c JP |
2409 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
2410 | { | |
2411 | struct team *team; | |
2412 | int err = 0; | |
2413 | int i; | |
2414 | struct nlattr *nl_option; | |
2fcdb2c9 | 2415 | LIST_HEAD(opt_inst_list); |
3d249d4c JP |
2416 | |
2417 | team = team_nl_team_get(info); | |
2418 | if (!team) | |
2419 | return -EINVAL; | |
2420 | ||
2421 | err = -EINVAL; | |
2422 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { | |
2423 | err = -EINVAL; | |
2424 | goto team_put; | |
2425 | } | |
2426 | ||
2427 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { | |
80f7c668 | 2428 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
b1303326 | 2429 | struct nlattr *attr; |
14f066ba | 2430 | struct nlattr *attr_data; |
3d249d4c | 2431 | enum team_option_type opt_type; |
80f7c668 | 2432 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
b1303326 JP |
2433 | u32 opt_array_index = 0; |
2434 | bool opt_is_array = false; | |
80f7c668 | 2435 | struct team_option_inst *opt_inst; |
3d249d4c JP |
2436 | char *opt_name; |
2437 | bool opt_found = false; | |
2438 | ||
2439 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { | |
2440 | err = -EINVAL; | |
2441 | goto team_put; | |
2442 | } | |
80f7c668 | 2443 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
3d249d4c JP |
2444 | nl_option, team_nl_option_policy); |
2445 | if (err) | |
2446 | goto team_put; | |
80f7c668 | 2447 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
14f066ba | 2448 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
3d249d4c JP |
2449 | err = -EINVAL; |
2450 | goto team_put; | |
2451 | } | |
80f7c668 | 2452 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
3d249d4c JP |
2453 | case NLA_U32: |
2454 | opt_type = TEAM_OPTION_TYPE_U32; | |
2455 | break; | |
2456 | case NLA_STRING: | |
2457 | opt_type = TEAM_OPTION_TYPE_STRING; | |
2458 | break; | |
2615598f JP |
2459 | case NLA_BINARY: |
2460 | opt_type = TEAM_OPTION_TYPE_BINARY; | |
2461 | break; | |
14f066ba JP |
2462 | case NLA_FLAG: |
2463 | opt_type = TEAM_OPTION_TYPE_BOOL; | |
2464 | break; | |
69821638 JP |
2465 | case NLA_S32: |
2466 | opt_type = TEAM_OPTION_TYPE_S32; | |
2467 | break; | |
3d249d4c JP |
2468 | default: |
2469 | goto team_put; | |
2470 | } | |
2471 | ||
14f066ba JP |
2472 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
2473 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { | |
2474 | err = -EINVAL; | |
2475 | goto team_put; | |
2476 | } | |
2477 | ||
80f7c668 | 2478 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
b1303326 JP |
2479 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
2480 | if (attr) | |
2481 | opt_port_ifindex = nla_get_u32(attr); | |
2482 | ||
2483 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; | |
2484 | if (attr) { | |
2485 | opt_is_array = true; | |
2486 | opt_array_index = nla_get_u32(attr); | |
2487 | } | |
80f7c668 JP |
2488 | |
2489 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
2490 | struct team_option *option = opt_inst->option; | |
80f7c668 | 2491 | struct team_gsetter_ctx ctx; |
85d59a87 | 2492 | struct team_option_inst_info *opt_inst_info; |
80f7c668 | 2493 | int tmp_ifindex; |
3d249d4c | 2494 | |
85d59a87 JP |
2495 | opt_inst_info = &opt_inst->info; |
2496 | tmp_ifindex = opt_inst_info->port ? | |
2497 | opt_inst_info->port->dev->ifindex : 0; | |
3d249d4c | 2498 | if (option->type != opt_type || |
80f7c668 | 2499 | strcmp(option->name, opt_name) || |
b1303326 JP |
2500 | tmp_ifindex != opt_port_ifindex || |
2501 | (option->array_size && !opt_is_array) || | |
85d59a87 | 2502 | opt_inst_info->array_index != opt_array_index) |
3d249d4c JP |
2503 | continue; |
2504 | opt_found = true; | |
85d59a87 | 2505 | ctx.info = opt_inst_info; |
3d249d4c JP |
2506 | switch (opt_type) { |
2507 | case TEAM_OPTION_TYPE_U32: | |
14f066ba | 2508 | ctx.data.u32_val = nla_get_u32(attr_data); |
3d249d4c JP |
2509 | break; |
2510 | case TEAM_OPTION_TYPE_STRING: | |
14f066ba | 2511 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
2615598f JP |
2512 | err = -EINVAL; |
2513 | goto team_put; | |
2514 | } | |
14f066ba | 2515 | ctx.data.str_val = nla_data(attr_data); |
3d249d4c | 2516 | break; |
2615598f | 2517 | case TEAM_OPTION_TYPE_BINARY: |
14f066ba JP |
2518 | ctx.data.bin_val.len = nla_len(attr_data); |
2519 | ctx.data.bin_val.ptr = nla_data(attr_data); | |
2520 | break; | |
2521 | case TEAM_OPTION_TYPE_BOOL: | |
2522 | ctx.data.bool_val = attr_data ? true : false; | |
2615598f | 2523 | break; |
69821638 JP |
2524 | case TEAM_OPTION_TYPE_S32: |
2525 | ctx.data.s32_val = nla_get_s32(attr_data); | |
2526 | break; | |
3d249d4c JP |
2527 | default: |
2528 | BUG(); | |
2529 | } | |
80f7c668 | 2530 | err = team_option_set(team, opt_inst, &ctx); |
3d249d4c JP |
2531 | if (err) |
2532 | goto team_put; | |
2fcdb2c9 JP |
2533 | opt_inst->changed = true; |
2534 | list_add(&opt_inst->tmp_list, &opt_inst_list); | |
3d249d4c JP |
2535 | } |
2536 | if (!opt_found) { | |
2537 | err = -ENOENT; | |
2538 | goto team_put; | |
2539 | } | |
2540 | } | |
2541 | ||
2fcdb2c9 JP |
2542 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
2543 | ||
3d249d4c JP |
2544 | team_put: |
2545 | team_nl_team_put(team); | |
2546 | ||
2547 | return err; | |
2548 | } | |
2549 | ||
d90f889e JP |
2550 | static int team_nl_fill_one_port_get(struct sk_buff *skb, |
2551 | struct team_port *port) | |
2552 | { | |
2553 | struct nlattr *port_item; | |
2554 | ||
2555 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); | |
2556 | if (!port_item) | |
2557 | goto nest_cancel; | |
2558 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) | |
2559 | goto nest_cancel; | |
2560 | if (port->changed) { | |
2561 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) | |
2562 | goto nest_cancel; | |
2563 | port->changed = false; | |
2564 | } | |
2565 | if ((port->removed && | |
2566 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || | |
2567 | (port->state.linkup && | |
2568 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || | |
2569 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || | |
2570 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) | |
2571 | goto nest_cancel; | |
2572 | nla_nest_end(skb, port_item); | |
2573 | return 0; | |
2574 | ||
2575 | nest_cancel: | |
2576 | nla_nest_cancel(skb, port_item); | |
2577 | return -EMSGSIZE; | |
2578 | } | |
2579 | ||
2580 | static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, | |
2581 | int flags, team_nl_send_func_t *send_func, | |
2582 | struct team_port *one_port) | |
3d249d4c JP |
2583 | { |
2584 | struct nlattr *port_list; | |
d90f889e | 2585 | struct nlmsghdr *nlh; |
3d249d4c JP |
2586 | void *hdr; |
2587 | struct team_port *port; | |
d90f889e JP |
2588 | int err; |
2589 | struct sk_buff *skb = NULL; | |
2590 | bool incomplete; | |
2591 | int i; | |
3d249d4c | 2592 | |
3f3e7ce4 JP |
2593 | port = list_first_entry_or_null(&team->port_list, |
2594 | struct team_port, list); | |
d90f889e JP |
2595 | |
2596 | start_again: | |
2597 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2598 | if (err) | |
2599 | return err; | |
2600 | ||
2601 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, | |
3d249d4c | 2602 | TEAM_CMD_PORT_LIST_GET); |
a326e6dd WY |
2603 | if (!hdr) |
2604 | return -EMSGSIZE; | |
3d249d4c | 2605 | |
86ebb02d DM |
2606 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2607 | goto nla_put_failure; | |
3d249d4c JP |
2608 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
2609 | if (!port_list) | |
3221c646 | 2610 | goto nla_put_failure; |
3d249d4c | 2611 | |
d90f889e JP |
2612 | i = 0; |
2613 | incomplete = false; | |
3d249d4c | 2614 | |
d90f889e JP |
2615 | /* If one port is selected, called wants to send port list containing |
2616 | * only this port. Otherwise go through all listed ports and send all | |
2617 | */ | |
2618 | if (one_port) { | |
2619 | err = team_nl_fill_one_port_get(skb, one_port); | |
2620 | if (err) | |
2621 | goto errout; | |
3f3e7ce4 JP |
2622 | } else if (port) { |
2623 | list_for_each_entry_from(port, &team->port_list, list) { | |
d90f889e JP |
2624 | err = team_nl_fill_one_port_get(skb, port); |
2625 | if (err) { | |
2626 | if (err == -EMSGSIZE) { | |
2627 | if (!i) | |
2628 | goto errout; | |
2629 | incomplete = true; | |
2630 | break; | |
2631 | } | |
2632 | goto errout; | |
2633 | } | |
2634 | i++; | |
b82b9183 | 2635 | } |
3d249d4c JP |
2636 | } |
2637 | ||
2638 | nla_nest_end(skb, port_list); | |
d90f889e JP |
2639 | genlmsg_end(skb, hdr); |
2640 | if (incomplete) | |
2641 | goto start_again; | |
2642 | ||
2643 | send_done: | |
2644 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2645 | if (!nlh) { | |
2646 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2647 | if (err) | |
2648 | goto errout; | |
2649 | goto send_done; | |
2650 | } | |
2651 | ||
2652 | return send_func(skb, team, portid); | |
3d249d4c JP |
2653 | |
2654 | nla_put_failure: | |
d90f889e JP |
2655 | err = -EMSGSIZE; |
2656 | errout: | |
3d249d4c | 2657 | genlmsg_cancel(skb, hdr); |
d90f889e JP |
2658 | nlmsg_free(skb); |
2659 | return err; | |
3d249d4c JP |
2660 | } |
2661 | ||
2662 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, | |
2663 | struct genl_info *info) | |
2664 | { | |
2665 | struct team *team; | |
2666 | int err; | |
2667 | ||
2668 | team = team_nl_team_get(info); | |
2669 | if (!team) | |
2670 | return -EINVAL; | |
2671 | ||
d90f889e JP |
2672 | err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, |
2673 | NLM_F_ACK, team_nl_send_unicast, NULL); | |
3d249d4c JP |
2674 | |
2675 | team_nl_team_put(team); | |
2676 | ||
2677 | return err; | |
2678 | } | |
2679 | ||
4534de83 | 2680 | static const struct genl_ops team_nl_ops[] = { |
3d249d4c JP |
2681 | { |
2682 | .cmd = TEAM_CMD_NOOP, | |
2683 | .doit = team_nl_cmd_noop, | |
2684 | .policy = team_nl_policy, | |
2685 | }, | |
2686 | { | |
2687 | .cmd = TEAM_CMD_OPTIONS_SET, | |
2688 | .doit = team_nl_cmd_options_set, | |
2689 | .policy = team_nl_policy, | |
2690 | .flags = GENL_ADMIN_PERM, | |
2691 | }, | |
2692 | { | |
2693 | .cmd = TEAM_CMD_OPTIONS_GET, | |
2694 | .doit = team_nl_cmd_options_get, | |
2695 | .policy = team_nl_policy, | |
2696 | .flags = GENL_ADMIN_PERM, | |
2697 | }, | |
2698 | { | |
2699 | .cmd = TEAM_CMD_PORT_LIST_GET, | |
2700 | .doit = team_nl_cmd_port_list_get, | |
2701 | .policy = team_nl_policy, | |
2702 | .flags = GENL_ADMIN_PERM, | |
2703 | }, | |
2704 | }; | |
2705 | ||
2a94fe48 JB |
2706 | static const struct genl_multicast_group team_nl_mcgrps[] = { |
2707 | { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, | |
3d249d4c JP |
2708 | }; |
2709 | ||
9b00cf2d | 2710 | static int team_nl_send_multicast(struct sk_buff *skb, |
15e47304 | 2711 | struct team *team, u32 portid) |
9b00cf2d | 2712 | { |
68eb5503 | 2713 | return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), |
2a94fe48 | 2714 | skb, 0, 0, GFP_KERNEL); |
9b00cf2d JP |
2715 | } |
2716 | ||
01048d9a JP |
2717 | static int team_nl_send_event_options_get(struct team *team, |
2718 | struct list_head *sel_opt_inst_list) | |
3d249d4c | 2719 | { |
9b00cf2d JP |
2720 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
2721 | sel_opt_inst_list); | |
3d249d4c JP |
2722 | } |
2723 | ||
d90f889e JP |
2724 | static int team_nl_send_event_port_get(struct team *team, |
2725 | struct team_port *port) | |
3d249d4c | 2726 | { |
d90f889e JP |
2727 | return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, |
2728 | port); | |
3d249d4c JP |
2729 | } |
2730 | ||
2731 | static int team_nl_init(void) | |
2732 | { | |
2a94fe48 JB |
2733 | return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops, |
2734 | team_nl_mcgrps); | |
3d249d4c JP |
2735 | } |
2736 | ||
2737 | static void team_nl_fini(void) | |
2738 | { | |
2739 | genl_unregister_family(&team_nl_family); | |
2740 | } | |
2741 | ||
2742 | ||
2743 | /****************** | |
2744 | * Change checkers | |
2745 | ******************/ | |
2746 | ||
b82b9183 | 2747 | static void __team_options_change_check(struct team *team) |
3d249d4c JP |
2748 | { |
2749 | int err; | |
01048d9a JP |
2750 | struct team_option_inst *opt_inst; |
2751 | LIST_HEAD(sel_opt_inst_list); | |
3d249d4c | 2752 | |
01048d9a JP |
2753 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
2754 | if (opt_inst->changed) | |
2755 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
2756 | } | |
2757 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); | |
0c7517e9 | 2758 | if (err && err != -ESRCH) |
9b00cf2d JP |
2759 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
2760 | err); | |
3d249d4c JP |
2761 | } |
2762 | ||
2763 | /* rtnl lock is held */ | |
10f3f51d JP |
2764 | |
2765 | static void __team_port_change_send(struct team_port *port, bool linkup) | |
3d249d4c JP |
2766 | { |
2767 | int err; | |
2768 | ||
b82b9183 | 2769 | port->changed = true; |
71472ec1 JP |
2770 | port->state.linkup = linkup; |
2771 | team_refresh_port_linkup(port); | |
3d249d4c JP |
2772 | if (linkup) { |
2773 | struct ethtool_cmd ecmd; | |
2774 | ||
2775 | err = __ethtool_get_settings(port->dev, &ecmd); | |
2776 | if (!err) { | |
71472ec1 JP |
2777 | port->state.speed = ethtool_cmd_speed(&ecmd); |
2778 | port->state.duplex = ecmd.duplex; | |
3d249d4c JP |
2779 | goto send_event; |
2780 | } | |
2781 | } | |
71472ec1 JP |
2782 | port->state.speed = 0; |
2783 | port->state.duplex = 0; | |
3d249d4c JP |
2784 | |
2785 | send_event: | |
d90f889e | 2786 | err = team_nl_send_event_port_get(port->team, port); |
0c7517e9 JP |
2787 | if (err && err != -ESRCH) |
2788 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", | |
2789 | port->dev->name, err); | |
3d249d4c JP |
2790 | |
2791 | } | |
2792 | ||
06a7fc42 FL |
2793 | static void __team_carrier_check(struct team *team) |
2794 | { | |
2795 | struct team_port *port; | |
2796 | bool team_linkup; | |
2797 | ||
e185483e FL |
2798 | if (team->user_carrier_enabled) |
2799 | return; | |
2800 | ||
06a7fc42 FL |
2801 | team_linkup = false; |
2802 | list_for_each_entry(port, &team->port_list, list) { | |
2803 | if (port->linkup) { | |
2804 | team_linkup = true; | |
2805 | break; | |
2806 | } | |
2807 | } | |
2808 | ||
2809 | if (team_linkup) | |
2810 | netif_carrier_on(team->dev); | |
2811 | else | |
2812 | netif_carrier_off(team->dev); | |
2813 | } | |
2814 | ||
10f3f51d JP |
2815 | static void __team_port_change_check(struct team_port *port, bool linkup) |
2816 | { | |
2817 | if (port->state.linkup != linkup) | |
2818 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2819 | __team_carrier_check(port->team); |
10f3f51d JP |
2820 | } |
2821 | ||
2822 | static void __team_port_change_port_added(struct team_port *port, bool linkup) | |
2823 | { | |
2824 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2825 | __team_carrier_check(port->team); |
10f3f51d JP |
2826 | } |
2827 | ||
2828 | static void __team_port_change_port_removed(struct team_port *port) | |
2829 | { | |
2830 | port->removed = true; | |
2831 | __team_port_change_send(port, false); | |
06a7fc42 | 2832 | __team_carrier_check(port->team); |
10f3f51d JP |
2833 | } |
2834 | ||
3d249d4c JP |
2835 | static void team_port_change_check(struct team_port *port, bool linkup) |
2836 | { | |
2837 | struct team *team = port->team; | |
2838 | ||
61dc3461 | 2839 | mutex_lock(&team->lock); |
3d249d4c | 2840 | __team_port_change_check(port, linkup); |
61dc3461 | 2841 | mutex_unlock(&team->lock); |
3d249d4c JP |
2842 | } |
2843 | ||
0f1aad2b | 2844 | |
3d249d4c JP |
2845 | /************************************ |
2846 | * Net device notifier event handler | |
2847 | ************************************/ | |
2848 | ||
2849 | static int team_device_event(struct notifier_block *unused, | |
2850 | unsigned long event, void *ptr) | |
2851 | { | |
351638e7 | 2852 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
3d249d4c JP |
2853 | struct team_port *port; |
2854 | ||
2855 | port = team_port_get_rtnl(dev); | |
2856 | if (!port) | |
2857 | return NOTIFY_DONE; | |
2858 | ||
2859 | switch (event) { | |
2860 | case NETDEV_UP: | |
2861 | if (netif_carrier_ok(dev)) | |
2862 | team_port_change_check(port, true); | |
ed2da03c | 2863 | break; |
3d249d4c JP |
2864 | case NETDEV_DOWN: |
2865 | team_port_change_check(port, false); | |
ed2da03c | 2866 | break; |
3d249d4c JP |
2867 | case NETDEV_CHANGE: |
2868 | if (netif_running(port->dev)) | |
2869 | team_port_change_check(port, | |
2870 | !!netif_carrier_ok(port->dev)); | |
2871 | break; | |
2872 | case NETDEV_UNREGISTER: | |
2873 | team_del_slave(port->team->dev, dev); | |
2874 | break; | |
2875 | case NETDEV_FEAT_CHANGE: | |
2876 | team_compute_features(port->team); | |
2877 | break; | |
b01f236c | 2878 | case NETDEV_PRECHANGEMTU: |
3d249d4c | 2879 | /* Forbid to change mtu of underlaying device */ |
9d0d68fa JP |
2880 | if (!port->team->port_mtu_change_allowed) |
2881 | return NOTIFY_BAD; | |
2882 | break; | |
3d249d4c JP |
2883 | case NETDEV_PRE_TYPE_CHANGE: |
2884 | /* Forbid to change type of underlaying device */ | |
2885 | return NOTIFY_BAD; | |
4aa5dee4 JP |
2886 | case NETDEV_RESEND_IGMP: |
2887 | /* Propagate to master device */ | |
2888 | call_netdevice_notifiers(event, port->team->dev); | |
2889 | break; | |
3d249d4c JP |
2890 | } |
2891 | return NOTIFY_DONE; | |
2892 | } | |
2893 | ||
2894 | static struct notifier_block team_notifier_block __read_mostly = { | |
2895 | .notifier_call = team_device_event, | |
2896 | }; | |
2897 | ||
2898 | ||
2899 | /*********************** | |
2900 | * Module init and exit | |
2901 | ***********************/ | |
2902 | ||
2903 | static int __init team_module_init(void) | |
2904 | { | |
2905 | int err; | |
2906 | ||
2907 | register_netdevice_notifier(&team_notifier_block); | |
2908 | ||
2909 | err = rtnl_link_register(&team_link_ops); | |
2910 | if (err) | |
2911 | goto err_rtnl_reg; | |
2912 | ||
2913 | err = team_nl_init(); | |
2914 | if (err) | |
2915 | goto err_nl_init; | |
2916 | ||
2917 | return 0; | |
2918 | ||
2919 | err_nl_init: | |
2920 | rtnl_link_unregister(&team_link_ops); | |
2921 | ||
2922 | err_rtnl_reg: | |
2923 | unregister_netdevice_notifier(&team_notifier_block); | |
2924 | ||
2925 | return err; | |
2926 | } | |
2927 | ||
2928 | static void __exit team_module_exit(void) | |
2929 | { | |
2930 | team_nl_fini(); | |
2931 | rtnl_link_unregister(&team_link_ops); | |
2932 | unregister_netdevice_notifier(&team_notifier_block); | |
2933 | } | |
2934 | ||
2935 | module_init(team_module_init); | |
2936 | module_exit(team_module_exit); | |
2937 | ||
2938 | MODULE_LICENSE("GPL v2"); | |
2939 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
2940 | MODULE_DESCRIPTION("Ethernet team device driver"); | |
2941 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |