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 | { | |
57e59563 | 46 | return rcu_dereference(dev->rx_handler_data); |
3d249d4c JP |
47 | } |
48 | ||
49 | static struct team_port *team_port_get_rtnl(const struct net_device *dev) | |
50 | { | |
51 | struct team_port *port = rtnl_dereference(dev->rx_handler_data); | |
52 | ||
53 | return team_port_exists(dev) ? port : NULL; | |
54 | } | |
55 | ||
56 | /* | |
1d76efe1 | 57 | * Since the ability to change device address for open port device is tested in |
3d249d4c JP |
58 | * team_port_add, this function can be called without control of return value |
59 | */ | |
1d76efe1 JP |
60 | static int __set_port_dev_addr(struct net_device *port_dev, |
61 | const unsigned char *dev_addr) | |
3d249d4c JP |
62 | { |
63 | struct sockaddr addr; | |
64 | ||
1d76efe1 JP |
65 | memcpy(addr.sa_data, dev_addr, port_dev->addr_len); |
66 | addr.sa_family = port_dev->type; | |
3d249d4c JP |
67 | return dev_set_mac_address(port_dev, &addr); |
68 | } | |
69 | ||
1d76efe1 | 70 | static int team_port_set_orig_dev_addr(struct team_port *port) |
3d249d4c | 71 | { |
1d76efe1 | 72 | return __set_port_dev_addr(port->dev, port->orig.dev_addr); |
3d249d4c JP |
73 | } |
74 | ||
acbba0d0 JP |
75 | static int team_port_set_team_dev_addr(struct team *team, |
76 | struct team_port *port) | |
3d249d4c | 77 | { |
acbba0d0 | 78 | return __set_port_dev_addr(port->dev, team->dev->dev_addr); |
3d249d4c | 79 | } |
acbba0d0 JP |
80 | |
81 | int team_modeop_port_enter(struct team *team, struct team_port *port) | |
82 | { | |
83 | return team_port_set_team_dev_addr(team, port); | |
84 | } | |
85 | EXPORT_SYMBOL(team_modeop_port_enter); | |
86 | ||
87 | void team_modeop_port_change_dev_addr(struct team *team, | |
88 | struct team_port *port) | |
89 | { | |
90 | team_port_set_team_dev_addr(team, port); | |
91 | } | |
92 | EXPORT_SYMBOL(team_modeop_port_change_dev_addr); | |
3d249d4c | 93 | |
3a0d6c5a JP |
94 | static void team_lower_state_changed(struct team_port *port) |
95 | { | |
96 | struct netdev_lag_lower_state_info info; | |
97 | ||
98 | info.link_up = port->linkup; | |
99 | info.tx_enabled = team_port_enabled(port); | |
100 | netdev_lower_state_changed(port->dev, &info); | |
101 | } | |
102 | ||
71472ec1 JP |
103 | static void team_refresh_port_linkup(struct team_port *port) |
104 | { | |
3a0d6c5a JP |
105 | bool new_linkup = port->user.linkup_enabled ? port->user.linkup : |
106 | port->state.linkup; | |
107 | ||
108 | if (port->linkup != new_linkup) { | |
109 | port->linkup = new_linkup; | |
110 | team_lower_state_changed(port); | |
111 | } | |
71472ec1 | 112 | } |
3d249d4c | 113 | |
0f1aad2b | 114 | |
3d249d4c JP |
115 | /******************* |
116 | * Options handling | |
117 | *******************/ | |
118 | ||
80f7c668 JP |
119 | struct team_option_inst { /* One for each option instance */ |
120 | struct list_head list; | |
01048d9a | 121 | struct list_head tmp_list; |
80f7c668 | 122 | struct team_option *option; |
85d59a87 | 123 | struct team_option_inst_info info; |
80f7c668 JP |
124 | bool changed; |
125 | bool removed; | |
126 | }; | |
127 | ||
128 | static struct team_option *__team_find_option(struct team *team, | |
129 | const char *opt_name) | |
358b8382 JP |
130 | { |
131 | struct team_option *option; | |
132 | ||
133 | list_for_each_entry(option, &team->option_list, list) { | |
134 | if (strcmp(option->name, opt_name) == 0) | |
135 | return option; | |
136 | } | |
137 | return NULL; | |
138 | } | |
139 | ||
80f7c668 JP |
140 | static void __team_option_inst_del(struct team_option_inst *opt_inst) |
141 | { | |
142 | list_del(&opt_inst->list); | |
143 | kfree(opt_inst); | |
144 | } | |
145 | ||
146 | static void __team_option_inst_del_option(struct team *team, | |
147 | struct team_option *option) | |
148 | { | |
149 | struct team_option_inst *opt_inst, *tmp; | |
150 | ||
151 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
152 | if (opt_inst->option == option) | |
153 | __team_option_inst_del(opt_inst); | |
154 | } | |
155 | } | |
156 | ||
b1303326 JP |
157 | static int __team_option_inst_add(struct team *team, struct team_option *option, |
158 | struct team_port *port) | |
159 | { | |
160 | struct team_option_inst *opt_inst; | |
161 | unsigned int array_size; | |
162 | unsigned int i; | |
85d59a87 | 163 | int err; |
b1303326 JP |
164 | |
165 | array_size = option->array_size; | |
166 | if (!array_size) | |
167 | array_size = 1; /* No array but still need one instance */ | |
168 | ||
169 | for (i = 0; i < array_size; i++) { | |
170 | opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); | |
171 | if (!opt_inst) | |
172 | return -ENOMEM; | |
173 | opt_inst->option = option; | |
85d59a87 JP |
174 | opt_inst->info.port = port; |
175 | opt_inst->info.array_index = i; | |
b1303326 JP |
176 | opt_inst->changed = true; |
177 | opt_inst->removed = false; | |
178 | list_add_tail(&opt_inst->list, &team->option_inst_list); | |
85d59a87 JP |
179 | if (option->init) { |
180 | err = option->init(team, &opt_inst->info); | |
181 | if (err) | |
182 | return err; | |
183 | } | |
184 | ||
b1303326 JP |
185 | } |
186 | return 0; | |
187 | } | |
188 | ||
80f7c668 JP |
189 | static int __team_option_inst_add_option(struct team *team, |
190 | struct team_option *option) | |
191 | { | |
80f7c668 JP |
192 | int err; |
193 | ||
b1303326 | 194 | if (!option->per_port) { |
f88725ff | 195 | err = __team_option_inst_add(team, option, NULL); |
b1303326 JP |
196 | if (err) |
197 | goto inst_del_option; | |
198 | } | |
80f7c668 JP |
199 | return 0; |
200 | ||
201 | inst_del_option: | |
202 | __team_option_inst_del_option(team, option); | |
203 | return err; | |
204 | } | |
205 | ||
206 | static void __team_option_inst_mark_removed_option(struct team *team, | |
207 | struct team_option *option) | |
208 | { | |
209 | struct team_option_inst *opt_inst; | |
210 | ||
211 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
212 | if (opt_inst->option == option) { | |
213 | opt_inst->changed = true; | |
214 | opt_inst->removed = true; | |
215 | } | |
216 | } | |
217 | } | |
218 | ||
219 | static void __team_option_inst_del_port(struct team *team, | |
220 | struct team_port *port) | |
221 | { | |
222 | struct team_option_inst *opt_inst, *tmp; | |
223 | ||
224 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
225 | if (opt_inst->option->per_port && | |
85d59a87 | 226 | opt_inst->info.port == port) |
80f7c668 JP |
227 | __team_option_inst_del(opt_inst); |
228 | } | |
229 | } | |
230 | ||
231 | static int __team_option_inst_add_port(struct team *team, | |
232 | struct team_port *port) | |
233 | { | |
234 | struct team_option *option; | |
235 | int err; | |
236 | ||
237 | list_for_each_entry(option, &team->option_list, list) { | |
238 | if (!option->per_port) | |
239 | continue; | |
240 | err = __team_option_inst_add(team, option, port); | |
241 | if (err) | |
242 | goto inst_del_port; | |
243 | } | |
244 | return 0; | |
245 | ||
246 | inst_del_port: | |
247 | __team_option_inst_del_port(team, port); | |
248 | return err; | |
249 | } | |
250 | ||
251 | static void __team_option_inst_mark_removed_port(struct team *team, | |
252 | struct team_port *port) | |
253 | { | |
254 | struct team_option_inst *opt_inst; | |
255 | ||
256 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
85d59a87 | 257 | if (opt_inst->info.port == port) { |
80f7c668 JP |
258 | opt_inst->changed = true; |
259 | opt_inst->removed = true; | |
260 | } | |
261 | } | |
262 | } | |
263 | ||
264 | static int __team_options_register(struct team *team, | |
265 | const struct team_option *option, | |
266 | size_t option_count) | |
3d249d4c JP |
267 | { |
268 | int i; | |
2bba19ff | 269 | struct team_option **dst_opts; |
358b8382 | 270 | int err; |
3d249d4c | 271 | |
2bba19ff JP |
272 | dst_opts = kzalloc(sizeof(struct team_option *) * option_count, |
273 | GFP_KERNEL); | |
274 | if (!dst_opts) | |
275 | return -ENOMEM; | |
358b8382 | 276 | for (i = 0; i < option_count; i++, option++) { |
358b8382 JP |
277 | if (__team_find_option(team, option->name)) { |
278 | err = -EEXIST; | |
80f7c668 | 279 | goto alloc_rollback; |
358b8382 | 280 | } |
f8a15af0 JP |
281 | dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); |
282 | if (!dst_opts[i]) { | |
358b8382 | 283 | err = -ENOMEM; |
80f7c668 | 284 | goto alloc_rollback; |
358b8382 | 285 | } |
358b8382 JP |
286 | } |
287 | ||
b82b9183 | 288 | for (i = 0; i < option_count; i++) { |
80f7c668 JP |
289 | err = __team_option_inst_add_option(team, dst_opts[i]); |
290 | if (err) | |
291 | goto inst_rollback; | |
358b8382 | 292 | list_add_tail(&dst_opts[i]->list, &team->option_list); |
b82b9183 | 293 | } |
358b8382 | 294 | |
2bba19ff | 295 | kfree(dst_opts); |
358b8382 JP |
296 | return 0; |
297 | ||
80f7c668 JP |
298 | inst_rollback: |
299 | for (i--; i >= 0; i--) | |
300 | __team_option_inst_del_option(team, dst_opts[i]); | |
301 | ||
302 | i = option_count - 1; | |
303 | alloc_rollback: | |
304 | for (i--; i >= 0; i--) | |
358b8382 JP |
305 | kfree(dst_opts[i]); |
306 | ||
2bba19ff | 307 | kfree(dst_opts); |
358b8382 | 308 | return err; |
3d249d4c | 309 | } |
358b8382 | 310 | |
b82b9183 JP |
311 | static void __team_options_mark_removed(struct team *team, |
312 | const struct team_option *option, | |
313 | size_t option_count) | |
314 | { | |
315 | int i; | |
316 | ||
317 | for (i = 0; i < option_count; i++, option++) { | |
318 | struct team_option *del_opt; | |
3d249d4c | 319 | |
b82b9183 | 320 | del_opt = __team_find_option(team, option->name); |
80f7c668 JP |
321 | if (del_opt) |
322 | __team_option_inst_mark_removed_option(team, del_opt); | |
b82b9183 JP |
323 | } |
324 | } | |
3d249d4c JP |
325 | |
326 | static void __team_options_unregister(struct team *team, | |
358b8382 | 327 | const struct team_option *option, |
3d249d4c JP |
328 | size_t option_count) |
329 | { | |
330 | int i; | |
331 | ||
358b8382 JP |
332 | for (i = 0; i < option_count; i++, option++) { |
333 | struct team_option *del_opt; | |
334 | ||
335 | del_opt = __team_find_option(team, option->name); | |
336 | if (del_opt) { | |
80f7c668 | 337 | __team_option_inst_del_option(team, del_opt); |
358b8382 JP |
338 | list_del(&del_opt->list); |
339 | kfree(del_opt); | |
340 | } | |
341 | } | |
3d249d4c JP |
342 | } |
343 | ||
b82b9183 JP |
344 | static void __team_options_change_check(struct team *team); |
345 | ||
346 | int team_options_register(struct team *team, | |
347 | const struct team_option *option, | |
348 | size_t option_count) | |
349 | { | |
350 | int err; | |
351 | ||
352 | err = __team_options_register(team, option, option_count); | |
353 | if (err) | |
354 | return err; | |
355 | __team_options_change_check(team); | |
356 | return 0; | |
357 | } | |
358 | EXPORT_SYMBOL(team_options_register); | |
359 | ||
358b8382 JP |
360 | void team_options_unregister(struct team *team, |
361 | const struct team_option *option, | |
3d249d4c JP |
362 | size_t option_count) |
363 | { | |
b82b9183 JP |
364 | __team_options_mark_removed(team, option, option_count); |
365 | __team_options_change_check(team); | |
3d249d4c | 366 | __team_options_unregister(team, option, option_count); |
3d249d4c JP |
367 | } |
368 | EXPORT_SYMBOL(team_options_unregister); | |
369 | ||
80f7c668 JP |
370 | static int team_option_get(struct team *team, |
371 | struct team_option_inst *opt_inst, | |
372 | struct team_gsetter_ctx *ctx) | |
373 | { | |
f82b959d JP |
374 | if (!opt_inst->option->getter) |
375 | return -EOPNOTSUPP; | |
80f7c668 JP |
376 | return opt_inst->option->getter(team, ctx); |
377 | } | |
378 | ||
379 | static int team_option_set(struct team *team, | |
380 | struct team_option_inst *opt_inst, | |
381 | struct team_gsetter_ctx *ctx) | |
3d249d4c | 382 | { |
f82b959d JP |
383 | if (!opt_inst->option->setter) |
384 | return -EOPNOTSUPP; | |
2fcdb2c9 | 385 | return opt_inst->option->setter(team, ctx); |
3d249d4c JP |
386 | } |
387 | ||
0f1aad2b JP |
388 | void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) |
389 | { | |
390 | struct team_option_inst *opt_inst; | |
391 | ||
392 | opt_inst = container_of(opt_inst_info, struct team_option_inst, info); | |
393 | opt_inst->changed = true; | |
394 | } | |
395 | EXPORT_SYMBOL(team_option_inst_set_change); | |
396 | ||
397 | void team_options_change_check(struct team *team) | |
398 | { | |
399 | __team_options_change_check(team); | |
400 | } | |
401 | EXPORT_SYMBOL(team_options_change_check); | |
402 | ||
403 | ||
3d249d4c JP |
404 | /**************** |
405 | * Mode handling | |
406 | ****************/ | |
407 | ||
408 | static LIST_HEAD(mode_list); | |
409 | static DEFINE_SPINLOCK(mode_list_lock); | |
410 | ||
0402788a JP |
411 | struct team_mode_item { |
412 | struct list_head list; | |
413 | const struct team_mode *mode; | |
414 | }; | |
415 | ||
416 | static struct team_mode_item *__find_mode(const char *kind) | |
3d249d4c | 417 | { |
0402788a | 418 | struct team_mode_item *mitem; |
3d249d4c | 419 | |
0402788a JP |
420 | list_for_each_entry(mitem, &mode_list, list) { |
421 | if (strcmp(mitem->mode->kind, kind) == 0) | |
422 | return mitem; | |
3d249d4c JP |
423 | } |
424 | return NULL; | |
425 | } | |
426 | ||
427 | static bool is_good_mode_name(const char *name) | |
428 | { | |
429 | while (*name != '\0') { | |
430 | if (!isalpha(*name) && !isdigit(*name) && *name != '_') | |
431 | return false; | |
432 | name++; | |
433 | } | |
434 | return true; | |
435 | } | |
436 | ||
0402788a | 437 | int team_mode_register(const struct team_mode *mode) |
3d249d4c JP |
438 | { |
439 | int err = 0; | |
0402788a | 440 | struct team_mode_item *mitem; |
3d249d4c JP |
441 | |
442 | if (!is_good_mode_name(mode->kind) || | |
443 | mode->priv_size > TEAM_MODE_PRIV_SIZE) | |
444 | return -EINVAL; | |
0402788a JP |
445 | |
446 | mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); | |
447 | if (!mitem) | |
448 | return -ENOMEM; | |
449 | ||
3d249d4c JP |
450 | spin_lock(&mode_list_lock); |
451 | if (__find_mode(mode->kind)) { | |
452 | err = -EEXIST; | |
0402788a | 453 | kfree(mitem); |
3d249d4c JP |
454 | goto unlock; |
455 | } | |
0402788a JP |
456 | mitem->mode = mode; |
457 | list_add_tail(&mitem->list, &mode_list); | |
3d249d4c JP |
458 | unlock: |
459 | spin_unlock(&mode_list_lock); | |
460 | return err; | |
461 | } | |
462 | EXPORT_SYMBOL(team_mode_register); | |
463 | ||
0402788a | 464 | void team_mode_unregister(const struct team_mode *mode) |
3d249d4c | 465 | { |
0402788a JP |
466 | struct team_mode_item *mitem; |
467 | ||
3d249d4c | 468 | spin_lock(&mode_list_lock); |
0402788a JP |
469 | mitem = __find_mode(mode->kind); |
470 | if (mitem) { | |
471 | list_del_init(&mitem->list); | |
472 | kfree(mitem); | |
473 | } | |
3d249d4c | 474 | spin_unlock(&mode_list_lock); |
3d249d4c JP |
475 | } |
476 | EXPORT_SYMBOL(team_mode_unregister); | |
477 | ||
0402788a | 478 | static const struct team_mode *team_mode_get(const char *kind) |
3d249d4c | 479 | { |
0402788a JP |
480 | struct team_mode_item *mitem; |
481 | const struct team_mode *mode = NULL; | |
3d249d4c JP |
482 | |
483 | spin_lock(&mode_list_lock); | |
0402788a JP |
484 | mitem = __find_mode(kind); |
485 | if (!mitem) { | |
3d249d4c JP |
486 | spin_unlock(&mode_list_lock); |
487 | request_module("team-mode-%s", kind); | |
488 | spin_lock(&mode_list_lock); | |
0402788a | 489 | mitem = __find_mode(kind); |
3d249d4c | 490 | } |
0402788a JP |
491 | if (mitem) { |
492 | mode = mitem->mode; | |
3d249d4c JP |
493 | if (!try_module_get(mode->owner)) |
494 | mode = NULL; | |
0402788a | 495 | } |
3d249d4c JP |
496 | |
497 | spin_unlock(&mode_list_lock); | |
498 | return mode; | |
499 | } | |
500 | ||
501 | static void team_mode_put(const struct team_mode *mode) | |
502 | { | |
503 | module_put(mode->owner); | |
504 | } | |
505 | ||
506 | static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) | |
507 | { | |
508 | dev_kfree_skb_any(skb); | |
509 | return false; | |
510 | } | |
511 | ||
2ea46599 | 512 | static rx_handler_result_t team_dummy_receive(struct team *team, |
513 | struct team_port *port, | |
514 | struct sk_buff *skb) | |
3d249d4c JP |
515 | { |
516 | return RX_HANDLER_ANOTHER; | |
517 | } | |
518 | ||
d299cd51 JP |
519 | static const struct team_mode __team_no_mode = { |
520 | .kind = "*NOMODE*", | |
521 | }; | |
522 | ||
523 | static bool team_is_mode_set(struct team *team) | |
524 | { | |
525 | return team->mode != &__team_no_mode; | |
526 | } | |
527 | ||
528 | static void team_set_no_mode(struct team *team) | |
529 | { | |
e185483e | 530 | team->user_carrier_enabled = false; |
d299cd51 JP |
531 | team->mode = &__team_no_mode; |
532 | } | |
533 | ||
735d381f | 534 | static void team_adjust_ops(struct team *team) |
3d249d4c JP |
535 | { |
536 | /* | |
537 | * To avoid checks in rx/tx skb paths, ensure here that non-null and | |
538 | * correct ops are always set. | |
539 | */ | |
540 | ||
735d381f | 541 | if (!team->en_port_count || !team_is_mode_set(team) || |
122bb046 | 542 | !team->mode->ops->transmit) |
3d249d4c JP |
543 | team->ops.transmit = team_dummy_transmit; |
544 | else | |
545 | team->ops.transmit = team->mode->ops->transmit; | |
546 | ||
735d381f | 547 | if (!team->en_port_count || !team_is_mode_set(team) || |
122bb046 | 548 | !team->mode->ops->receive) |
3d249d4c JP |
549 | team->ops.receive = team_dummy_receive; |
550 | else | |
551 | team->ops.receive = team->mode->ops->receive; | |
552 | } | |
553 | ||
554 | /* | |
555 | * We can benefit from the fact that it's ensured no port is present | |
556 | * at the time of mode change. Therefore no packets are in fly so there's no | |
557 | * need to set mode operations in any special way. | |
558 | */ | |
559 | static int __team_change_mode(struct team *team, | |
560 | const struct team_mode *new_mode) | |
561 | { | |
562 | /* Check if mode was previously set and do cleanup if so */ | |
d299cd51 | 563 | if (team_is_mode_set(team)) { |
3d249d4c JP |
564 | void (*exit_op)(struct team *team) = team->ops.exit; |
565 | ||
566 | /* Clear ops area so no callback is called any longer */ | |
567 | memset(&team->ops, 0, sizeof(struct team_mode_ops)); | |
568 | team_adjust_ops(team); | |
569 | ||
570 | if (exit_op) | |
571 | exit_op(team); | |
572 | team_mode_put(team->mode); | |
d299cd51 | 573 | team_set_no_mode(team); |
3d249d4c JP |
574 | /* zero private data area */ |
575 | memset(&team->mode_priv, 0, | |
576 | sizeof(struct team) - offsetof(struct team, mode_priv)); | |
577 | } | |
578 | ||
579 | if (!new_mode) | |
580 | return 0; | |
581 | ||
582 | if (new_mode->ops->init) { | |
583 | int err; | |
584 | ||
585 | err = new_mode->ops->init(team); | |
586 | if (err) | |
587 | return err; | |
588 | } | |
589 | ||
590 | team->mode = new_mode; | |
591 | memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); | |
592 | team_adjust_ops(team); | |
593 | ||
594 | return 0; | |
595 | } | |
596 | ||
597 | static int team_change_mode(struct team *team, const char *kind) | |
598 | { | |
0402788a | 599 | const struct team_mode *new_mode; |
3d249d4c JP |
600 | struct net_device *dev = team->dev; |
601 | int err; | |
602 | ||
603 | if (!list_empty(&team->port_list)) { | |
604 | netdev_err(dev, "No ports can be present during mode change\n"); | |
605 | return -EBUSY; | |
606 | } | |
607 | ||
d299cd51 | 608 | if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { |
3d249d4c JP |
609 | netdev_err(dev, "Unable to change to the same mode the team is in\n"); |
610 | return -EINVAL; | |
611 | } | |
612 | ||
613 | new_mode = team_mode_get(kind); | |
614 | if (!new_mode) { | |
615 | netdev_err(dev, "Mode \"%s\" not found\n", kind); | |
616 | return -EINVAL; | |
617 | } | |
618 | ||
619 | err = __team_change_mode(team, new_mode); | |
620 | if (err) { | |
621 | netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); | |
622 | team_mode_put(new_mode); | |
623 | return err; | |
624 | } | |
625 | ||
626 | netdev_info(dev, "Mode changed to \"%s\"\n", kind); | |
627 | return 0; | |
628 | } | |
629 | ||
630 | ||
fc423ff0 JP |
631 | /********************* |
632 | * Peers notification | |
633 | *********************/ | |
634 | ||
635 | static void team_notify_peers_work(struct work_struct *work) | |
636 | { | |
637 | struct team *team; | |
b0d11b42 | 638 | int val; |
fc423ff0 JP |
639 | |
640 | team = container_of(work, struct team, notify_peers.dw.work); | |
641 | ||
642 | if (!rtnl_trylock()) { | |
643 | schedule_delayed_work(&team->notify_peers.dw, 0); | |
644 | return; | |
645 | } | |
b0d11b42 JP |
646 | val = atomic_dec_if_positive(&team->notify_peers.count_pending); |
647 | if (val < 0) { | |
648 | rtnl_unlock(); | |
649 | return; | |
650 | } | |
fc423ff0 JP |
651 | call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev); |
652 | rtnl_unlock(); | |
b0d11b42 | 653 | if (val) |
fc423ff0 JP |
654 | schedule_delayed_work(&team->notify_peers.dw, |
655 | msecs_to_jiffies(team->notify_peers.interval)); | |
656 | } | |
657 | ||
658 | static void team_notify_peers(struct team *team) | |
659 | { | |
660 | if (!team->notify_peers.count || !netif_running(team->dev)) | |
661 | return; | |
47549650 | 662 | atomic_add(team->notify_peers.count, &team->notify_peers.count_pending); |
fc423ff0 JP |
663 | schedule_delayed_work(&team->notify_peers.dw, 0); |
664 | } | |
665 | ||
666 | static void team_notify_peers_init(struct team *team) | |
667 | { | |
668 | INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work); | |
669 | } | |
670 | ||
671 | static void team_notify_peers_fini(struct team *team) | |
672 | { | |
673 | cancel_delayed_work_sync(&team->notify_peers.dw); | |
674 | } | |
675 | ||
676 | ||
492b200e JP |
677 | /******************************* |
678 | * Send multicast group rejoins | |
679 | *******************************/ | |
680 | ||
681 | static void team_mcast_rejoin_work(struct work_struct *work) | |
682 | { | |
683 | struct team *team; | |
b0d11b42 | 684 | int val; |
492b200e JP |
685 | |
686 | team = container_of(work, struct team, mcast_rejoin.dw.work); | |
687 | ||
688 | if (!rtnl_trylock()) { | |
689 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); | |
690 | return; | |
691 | } | |
b0d11b42 JP |
692 | val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending); |
693 | if (val < 0) { | |
694 | rtnl_unlock(); | |
695 | return; | |
696 | } | |
492b200e JP |
697 | call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev); |
698 | rtnl_unlock(); | |
b0d11b42 | 699 | if (val) |
492b200e JP |
700 | schedule_delayed_work(&team->mcast_rejoin.dw, |
701 | msecs_to_jiffies(team->mcast_rejoin.interval)); | |
702 | } | |
703 | ||
704 | static void team_mcast_rejoin(struct team *team) | |
705 | { | |
706 | if (!team->mcast_rejoin.count || !netif_running(team->dev)) | |
707 | return; | |
47549650 | 708 | atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending); |
492b200e JP |
709 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); |
710 | } | |
711 | ||
712 | static void team_mcast_rejoin_init(struct team *team) | |
713 | { | |
714 | INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work); | |
715 | } | |
716 | ||
717 | static void team_mcast_rejoin_fini(struct team *team) | |
718 | { | |
719 | cancel_delayed_work_sync(&team->mcast_rejoin.dw); | |
720 | } | |
721 | ||
722 | ||
3d249d4c JP |
723 | /************************ |
724 | * Rx path frame handler | |
725 | ************************/ | |
726 | ||
727 | /* note: already called with rcu_read_lock */ | |
728 | static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) | |
729 | { | |
730 | struct sk_buff *skb = *pskb; | |
731 | struct team_port *port; | |
732 | struct team *team; | |
733 | rx_handler_result_t res; | |
734 | ||
735 | skb = skb_share_check(skb, GFP_ATOMIC); | |
736 | if (!skb) | |
737 | return RX_HANDLER_CONSUMED; | |
738 | ||
739 | *pskb = skb; | |
740 | ||
741 | port = team_port_get_rcu(skb->dev); | |
742 | team = port->team; | |
19a0b58e JP |
743 | if (!team_port_enabled(port)) { |
744 | /* allow exact match delivery for disabled ports */ | |
745 | res = RX_HANDLER_EXACT; | |
746 | } else { | |
747 | res = team->ops.receive(team, port, skb); | |
748 | } | |
3d249d4c JP |
749 | if (res == RX_HANDLER_ANOTHER) { |
750 | struct team_pcpu_stats *pcpu_stats; | |
751 | ||
752 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
753 | u64_stats_update_begin(&pcpu_stats->syncp); | |
754 | pcpu_stats->rx_packets++; | |
755 | pcpu_stats->rx_bytes += skb->len; | |
756 | if (skb->pkt_type == PACKET_MULTICAST) | |
757 | pcpu_stats->rx_multicast++; | |
758 | u64_stats_update_end(&pcpu_stats->syncp); | |
759 | ||
760 | skb->dev = team->dev; | |
bb63daf9 JW |
761 | } else if (res == RX_HANDLER_EXACT) { |
762 | this_cpu_inc(team->pcpu_stats->rx_nohandler); | |
3d249d4c JP |
763 | } else { |
764 | this_cpu_inc(team->pcpu_stats->rx_dropped); | |
765 | } | |
766 | ||
767 | return res; | |
768 | } | |
769 | ||
770 | ||
8ff5105a JP |
771 | /************************************* |
772 | * Multiqueue Tx port select override | |
773 | *************************************/ | |
774 | ||
775 | static int team_queue_override_init(struct team *team) | |
776 | { | |
777 | struct list_head *listarr; | |
778 | unsigned int queue_cnt = team->dev->num_tx_queues - 1; | |
779 | unsigned int i; | |
780 | ||
781 | if (!queue_cnt) | |
782 | return 0; | |
783 | listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL); | |
784 | if (!listarr) | |
785 | return -ENOMEM; | |
786 | team->qom_lists = listarr; | |
787 | for (i = 0; i < queue_cnt; i++) | |
788 | INIT_LIST_HEAD(listarr++); | |
789 | return 0; | |
790 | } | |
791 | ||
792 | static void team_queue_override_fini(struct team *team) | |
793 | { | |
794 | kfree(team->qom_lists); | |
795 | } | |
796 | ||
797 | static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) | |
798 | { | |
799 | return &team->qom_lists[queue_id - 1]; | |
800 | } | |
801 | ||
802 | /* | |
803 | * note: already called with rcu_read_lock | |
804 | */ | |
805 | static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) | |
806 | { | |
807 | struct list_head *qom_list; | |
808 | struct team_port *port; | |
809 | ||
810 | if (!team->queue_override_enabled || !skb->queue_mapping) | |
811 | return false; | |
812 | qom_list = __team_get_qom_list(team, skb->queue_mapping); | |
813 | list_for_each_entry_rcu(port, qom_list, qom_list) { | |
814 | if (!team_dev_queue_xmit(team, port, skb)) | |
815 | return true; | |
816 | } | |
817 | return false; | |
818 | } | |
819 | ||
820 | static void __team_queue_override_port_del(struct team *team, | |
821 | struct team_port *port) | |
822 | { | |
6c31ff36 JP |
823 | if (!port->queue_id) |
824 | return; | |
8ff5105a | 825 | list_del_rcu(&port->qom_list); |
8ff5105a JP |
826 | } |
827 | ||
828 | static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, | |
829 | struct team_port *cur) | |
830 | { | |
831 | if (port->priority < cur->priority) | |
832 | return true; | |
833 | if (port->priority > cur->priority) | |
834 | return false; | |
835 | if (port->index < cur->index) | |
836 | return true; | |
837 | return false; | |
838 | } | |
839 | ||
840 | static void __team_queue_override_port_add(struct team *team, | |
841 | struct team_port *port) | |
842 | { | |
843 | struct team_port *cur; | |
844 | struct list_head *qom_list; | |
845 | struct list_head *node; | |
846 | ||
6c31ff36 | 847 | if (!port->queue_id) |
8ff5105a | 848 | return; |
8ff5105a JP |
849 | qom_list = __team_get_qom_list(team, port->queue_id); |
850 | node = qom_list; | |
851 | list_for_each_entry(cur, qom_list, qom_list) { | |
852 | if (team_queue_override_port_has_gt_prio_than(port, cur)) | |
853 | break; | |
854 | node = &cur->qom_list; | |
855 | } | |
856 | list_add_tail_rcu(&port->qom_list, node); | |
857 | } | |
858 | ||
859 | static void __team_queue_override_enabled_check(struct team *team) | |
860 | { | |
861 | struct team_port *port; | |
862 | bool enabled = false; | |
863 | ||
864 | list_for_each_entry(port, &team->port_list, list) { | |
6c31ff36 | 865 | if (port->queue_id) { |
8ff5105a JP |
866 | enabled = true; |
867 | break; | |
868 | } | |
869 | } | |
870 | if (enabled == team->queue_override_enabled) | |
871 | return; | |
872 | netdev_dbg(team->dev, "%s queue override\n", | |
873 | enabled ? "Enabling" : "Disabling"); | |
874 | team->queue_override_enabled = enabled; | |
875 | } | |
876 | ||
6c31ff36 JP |
877 | static void team_queue_override_port_prio_changed(struct team *team, |
878 | struct team_port *port) | |
8ff5105a | 879 | { |
6c31ff36 JP |
880 | if (!port->queue_id || team_port_enabled(port)) |
881 | return; | |
8ff5105a JP |
882 | __team_queue_override_port_del(team, port); |
883 | __team_queue_override_port_add(team, port); | |
884 | __team_queue_override_enabled_check(team); | |
885 | } | |
886 | ||
6c31ff36 JP |
887 | static void team_queue_override_port_change_queue_id(struct team *team, |
888 | struct team_port *port, | |
889 | u16 new_queue_id) | |
890 | { | |
891 | if (team_port_enabled(port)) { | |
892 | __team_queue_override_port_del(team, port); | |
893 | port->queue_id = new_queue_id; | |
894 | __team_queue_override_port_add(team, port); | |
895 | __team_queue_override_enabled_check(team); | |
896 | } else { | |
897 | port->queue_id = new_queue_id; | |
898 | } | |
899 | } | |
900 | ||
901 | static void team_queue_override_port_add(struct team *team, | |
902 | struct team_port *port) | |
903 | { | |
904 | __team_queue_override_port_add(team, port); | |
905 | __team_queue_override_enabled_check(team); | |
906 | } | |
907 | ||
908 | static void team_queue_override_port_del(struct team *team, | |
909 | struct team_port *port) | |
910 | { | |
911 | __team_queue_override_port_del(team, port); | |
912 | __team_queue_override_enabled_check(team); | |
913 | } | |
914 | ||
8ff5105a | 915 | |
3d249d4c JP |
916 | /**************** |
917 | * Port handling | |
918 | ****************/ | |
919 | ||
920 | static bool team_port_find(const struct team *team, | |
921 | const struct team_port *port) | |
922 | { | |
923 | struct team_port *cur; | |
924 | ||
925 | list_for_each_entry(cur, &team->port_list, list) | |
926 | if (cur == port) | |
927 | return true; | |
928 | return false; | |
929 | } | |
930 | ||
931 | /* | |
19a0b58e JP |
932 | * Enable/disable port by adding to enabled port hashlist and setting |
933 | * port->index (Might be racy so reader could see incorrect ifindex when | |
934 | * processing a flying packet, but that is not a problem). Write guarded | |
935 | * by team->lock. | |
3d249d4c | 936 | */ |
19a0b58e JP |
937 | static void team_port_enable(struct team *team, |
938 | struct team_port *port) | |
3d249d4c | 939 | { |
19a0b58e JP |
940 | if (team_port_enabled(port)) |
941 | return; | |
942 | port->index = team->en_port_count++; | |
3d249d4c JP |
943 | hlist_add_head_rcu(&port->hlist, |
944 | team_port_index_hash(team, port->index)); | |
122bb046 | 945 | team_adjust_ops(team); |
6c31ff36 | 946 | team_queue_override_port_add(team, port); |
4bccfd17 JP |
947 | if (team->ops.port_enabled) |
948 | team->ops.port_enabled(team, port); | |
fc423ff0 | 949 | team_notify_peers(team); |
492b200e | 950 | team_mcast_rejoin(team); |
3a0d6c5a | 951 | team_lower_state_changed(port); |
3d249d4c JP |
952 | } |
953 | ||
954 | static void __reconstruct_port_hlist(struct team *team, int rm_index) | |
955 | { | |
956 | int i; | |
957 | struct team_port *port; | |
958 | ||
19a0b58e | 959 | for (i = rm_index + 1; i < team->en_port_count; i++) { |
3d249d4c JP |
960 | port = team_get_port_by_index(team, i); |
961 | hlist_del_rcu(&port->hlist); | |
962 | port->index--; | |
963 | hlist_add_head_rcu(&port->hlist, | |
964 | team_port_index_hash(team, port->index)); | |
965 | } | |
966 | } | |
967 | ||
19a0b58e JP |
968 | static void team_port_disable(struct team *team, |
969 | struct team_port *port) | |
3d249d4c | 970 | { |
19a0b58e JP |
971 | if (!team_port_enabled(port)) |
972 | return; | |
4bccfd17 JP |
973 | if (team->ops.port_disabled) |
974 | team->ops.port_disabled(team, port); | |
3d249d4c | 975 | hlist_del_rcu(&port->hlist); |
122bb046 | 976 | __reconstruct_port_hlist(team, port->index); |
19a0b58e | 977 | port->index = -1; |
122bb046 | 978 | team->en_port_count--; |
735d381f JP |
979 | team_queue_override_port_del(team, port); |
980 | team_adjust_ops(team); | |
fc423ff0 | 981 | team_notify_peers(team); |
492b200e | 982 | team_mcast_rejoin(team); |
3a0d6c5a | 983 | team_lower_state_changed(port); |
3d249d4c JP |
984 | } |
985 | ||
a188222b | 986 | #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ |
3d249d4c JP |
987 | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ |
988 | NETIF_F_HIGHDMA | NETIF_F_LRO) | |
989 | ||
3268e5cb EBE |
990 | #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ |
991 | NETIF_F_RXCSUM | NETIF_F_ALL_TSO) | |
992 | ||
3d249d4c JP |
993 | static void __team_compute_features(struct team *team) |
994 | { | |
995 | struct team_port *port; | |
3625920b | 996 | u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL; |
3268e5cb | 997 | netdev_features_t enc_features = TEAM_ENC_FEATURES; |
3d249d4c | 998 | unsigned short max_hard_header_len = ETH_HLEN; |
02875878 ED |
999 | unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE | |
1000 | IFF_XMIT_DST_RELEASE_PERM; | |
3d249d4c JP |
1001 | |
1002 | list_for_each_entry(port, &team->port_list, list) { | |
1003 | vlan_features = netdev_increment_features(vlan_features, | |
1004 | port->dev->vlan_features, | |
1005 | TEAM_VLAN_FEATURES); | |
3268e5cb EBE |
1006 | enc_features = |
1007 | netdev_increment_features(enc_features, | |
1008 | port->dev->hw_enc_features, | |
1009 | TEAM_ENC_FEATURES); | |
1010 | ||
3d249d4c | 1011 | |
dc905951 | 1012 | dst_release_flag &= port->dev->priv_flags; |
3d249d4c JP |
1013 | if (port->dev->hard_header_len > max_hard_header_len) |
1014 | max_hard_header_len = port->dev->hard_header_len; | |
1015 | } | |
1016 | ||
1017 | team->dev->vlan_features = vlan_features; | |
3268e5cb | 1018 | team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL; |
3d249d4c JP |
1019 | team->dev->hard_header_len = max_hard_header_len; |
1020 | ||
02875878 ED |
1021 | team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; |
1022 | if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM)) | |
1023 | team->dev->priv_flags |= IFF_XMIT_DST_RELEASE; | |
dc905951 | 1024 | |
3d249d4c JP |
1025 | netdev_change_features(team->dev); |
1026 | } | |
1027 | ||
1028 | static void team_compute_features(struct team *team) | |
1029 | { | |
61dc3461 | 1030 | mutex_lock(&team->lock); |
3d249d4c | 1031 | __team_compute_features(team); |
61dc3461 | 1032 | mutex_unlock(&team->lock); |
3d249d4c JP |
1033 | } |
1034 | ||
1035 | static int team_port_enter(struct team *team, struct team_port *port) | |
1036 | { | |
1037 | int err = 0; | |
1038 | ||
1039 | dev_hold(team->dev); | |
3d249d4c JP |
1040 | if (team->ops.port_enter) { |
1041 | err = team->ops.port_enter(team, port); | |
1042 | if (err) { | |
1043 | netdev_err(team->dev, "Device %s failed to enter team mode\n", | |
1044 | port->dev->name); | |
1045 | goto err_port_enter; | |
1046 | } | |
1047 | } | |
1048 | ||
1049 | return 0; | |
1050 | ||
1051 | err_port_enter: | |
3d249d4c JP |
1052 | dev_put(team->dev); |
1053 | ||
1054 | return err; | |
1055 | } | |
1056 | ||
1057 | static void team_port_leave(struct team *team, struct team_port *port) | |
1058 | { | |
1059 | if (team->ops.port_leave) | |
1060 | team->ops.port_leave(team, port); | |
3d249d4c JP |
1061 | dev_put(team->dev); |
1062 | } | |
1063 | ||
bd2d0837 | 1064 | #ifdef CONFIG_NET_POLL_CONTROLLER |
a8779ec1 | 1065 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
bd2d0837 JP |
1066 | { |
1067 | struct netpoll *np; | |
1068 | int err; | |
1069 | ||
0fb52a27 | 1070 | if (!team->dev->npinfo) |
1071 | return 0; | |
1072 | ||
a8779ec1 | 1073 | np = kzalloc(sizeof(*np), GFP_KERNEL); |
bd2d0837 JP |
1074 | if (!np) |
1075 | return -ENOMEM; | |
1076 | ||
a8779ec1 | 1077 | err = __netpoll_setup(np, port->dev); |
bd2d0837 JP |
1078 | if (err) { |
1079 | kfree(np); | |
1080 | return err; | |
1081 | } | |
1082 | port->np = np; | |
1083 | return err; | |
1084 | } | |
1085 | ||
1086 | static void team_port_disable_netpoll(struct team_port *port) | |
1087 | { | |
1088 | struct netpoll *np = port->np; | |
1089 | ||
1090 | if (!np) | |
1091 | return; | |
1092 | port->np = NULL; | |
1093 | ||
1094 | /* Wait for transmitting packets to finish before freeing. */ | |
1095 | synchronize_rcu_bh(); | |
1096 | __netpoll_cleanup(np); | |
1097 | kfree(np); | |
1098 | } | |
bd2d0837 | 1099 | #else |
a8779ec1 | 1100 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
bd2d0837 JP |
1101 | { |
1102 | return 0; | |
1103 | } | |
1104 | static void team_port_disable_netpoll(struct team_port *port) | |
1105 | { | |
1106 | } | |
bd2d0837 JP |
1107 | #endif |
1108 | ||
8fd72856 | 1109 | static int team_upper_dev_link(struct team *team, struct team_port *port) |
d7d3c051 | 1110 | { |
8fd72856 | 1111 | struct netdev_lag_upper_info lag_upper_info; |
d7d3c051 JP |
1112 | int err; |
1113 | ||
8fd72856 JP |
1114 | lag_upper_info.tx_type = team->mode->lag_tx_type; |
1115 | err = netdev_master_upper_dev_link(port->dev, team->dev, NULL, | |
1116 | &lag_upper_info); | |
d7d3c051 JP |
1117 | if (err) |
1118 | return err; | |
8fd72856 | 1119 | port->dev->priv_flags |= IFF_TEAM_PORT; |
d7d3c051 JP |
1120 | return 0; |
1121 | } | |
1122 | ||
8fd72856 | 1123 | static void team_upper_dev_unlink(struct team *team, struct team_port *port) |
d7d3c051 | 1124 | { |
8fd72856 JP |
1125 | netdev_upper_dev_unlink(port->dev, team->dev); |
1126 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
d7d3c051 JP |
1127 | } |
1128 | ||
10f3f51d | 1129 | static void __team_port_change_port_added(struct team_port *port, bool linkup); |
1d76efe1 JP |
1130 | static int team_dev_type_check_change(struct net_device *dev, |
1131 | struct net_device *port_dev); | |
3d249d4c JP |
1132 | |
1133 | static int team_port_add(struct team *team, struct net_device *port_dev) | |
1134 | { | |
1135 | struct net_device *dev = team->dev; | |
1136 | struct team_port *port; | |
1137 | char *portname = port_dev->name; | |
1138 | int err; | |
1139 | ||
1d76efe1 JP |
1140 | if (port_dev->flags & IFF_LOOPBACK) { |
1141 | netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", | |
3d249d4c JP |
1142 | portname); |
1143 | return -EINVAL; | |
1144 | } | |
1145 | ||
1146 | if (team_port_exists(port_dev)) { | |
1147 | netdev_err(dev, "Device %s is already a port " | |
1148 | "of a team device\n", portname); | |
1149 | return -EBUSY; | |
1150 | } | |
1151 | ||
2c33bb37 JP |
1152 | if (port_dev->features & NETIF_F_VLAN_CHALLENGED && |
1153 | vlan_uses_dev(dev)) { | |
1154 | netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", | |
1155 | portname); | |
1156 | return -EPERM; | |
1157 | } | |
1158 | ||
1d76efe1 JP |
1159 | err = team_dev_type_check_change(dev, port_dev); |
1160 | if (err) | |
1161 | return err; | |
1162 | ||
3d249d4c JP |
1163 | if (port_dev->flags & IFF_UP) { |
1164 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", | |
1165 | portname); | |
1166 | return -EBUSY; | |
1167 | } | |
1168 | ||
5149ee58 JP |
1169 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
1170 | GFP_KERNEL); | |
3d249d4c JP |
1171 | if (!port) |
1172 | return -ENOMEM; | |
1173 | ||
1174 | port->dev = port_dev; | |
1175 | port->team = team; | |
8ff5105a | 1176 | INIT_LIST_HEAD(&port->qom_list); |
3d249d4c JP |
1177 | |
1178 | port->orig.mtu = port_dev->mtu; | |
1179 | err = dev_set_mtu(port_dev, dev->mtu); | |
1180 | if (err) { | |
1181 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); | |
1182 | goto err_set_mtu; | |
1183 | } | |
1184 | ||
1d76efe1 | 1185 | memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); |
3d249d4c JP |
1186 | |
1187 | err = team_port_enter(team, port); | |
1188 | if (err) { | |
1189 | netdev_err(dev, "Device %s failed to enter team mode\n", | |
1190 | portname); | |
1191 | goto err_port_enter; | |
1192 | } | |
1193 | ||
1194 | err = dev_open(port_dev); | |
1195 | if (err) { | |
1196 | netdev_dbg(dev, "Device %s opening failed\n", | |
1197 | portname); | |
1198 | goto err_dev_open; | |
1199 | } | |
1200 | ||
cb41c997 XL |
1201 | dev_uc_sync_multiple(port_dev, dev); |
1202 | dev_mc_sync_multiple(port_dev, dev); | |
1203 | ||
57459185 JP |
1204 | err = vlan_vids_add_by_dev(port_dev, dev); |
1205 | if (err) { | |
1206 | netdev_err(dev, "Failed to add vlan ids to device %s\n", | |
1207 | portname); | |
1208 | goto err_vids_add; | |
1209 | } | |
1210 | ||
a8779ec1 | 1211 | err = team_port_enable_netpoll(team, port); |
0fb52a27 | 1212 | if (err) { |
1213 | netdev_err(dev, "Failed to enable netpoll on device %s\n", | |
1214 | portname); | |
1215 | goto err_enable_netpoll; | |
bd2d0837 JP |
1216 | } |
1217 | ||
fbe168ba MK |
1218 | if (!(dev->features & NETIF_F_LRO)) |
1219 | dev_disable_lro(port_dev); | |
1220 | ||
3d249d4c JP |
1221 | err = netdev_rx_handler_register(port_dev, team_handle_frame, |
1222 | port); | |
1223 | if (err) { | |
1224 | netdev_err(dev, "Device %s failed to register rx_handler\n", | |
1225 | portname); | |
1226 | goto err_handler_register; | |
1227 | } | |
1228 | ||
8fd72856 | 1229 | err = team_upper_dev_link(team, port); |
d7d3c051 JP |
1230 | if (err) { |
1231 | netdev_err(dev, "Device %s failed to set upper link\n", | |
1232 | portname); | |
1233 | goto err_set_upper_link; | |
1234 | } | |
1235 | ||
35b384bd | 1236 | err = __team_option_inst_add_port(team, port); |
80f7c668 JP |
1237 | if (err) { |
1238 | netdev_err(dev, "Device %s failed to add per-port options\n", | |
1239 | portname); | |
1240 | goto err_option_port_add; | |
1241 | } | |
1242 | ||
19a0b58e | 1243 | port->index = -1; |
19a0b58e | 1244 | list_add_tail_rcu(&port->list, &team->port_list); |
72df935d | 1245 | team_port_enable(team, port); |
3d249d4c | 1246 | __team_compute_features(team); |
10f3f51d | 1247 | __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); |
35b384bd | 1248 | __team_options_change_check(team); |
3d249d4c JP |
1249 | |
1250 | netdev_info(dev, "Port device %s added\n", portname); | |
1251 | ||
1252 | return 0; | |
1253 | ||
80f7c668 | 1254 | err_option_port_add: |
8fd72856 | 1255 | team_upper_dev_unlink(team, port); |
d7d3c051 JP |
1256 | |
1257 | err_set_upper_link: | |
80f7c668 JP |
1258 | netdev_rx_handler_unregister(port_dev); |
1259 | ||
3d249d4c | 1260 | err_handler_register: |
bd2d0837 JP |
1261 | team_port_disable_netpoll(port); |
1262 | ||
1263 | err_enable_netpoll: | |
57459185 JP |
1264 | vlan_vids_del_by_dev(port_dev, dev); |
1265 | ||
1266 | err_vids_add: | |
cb41c997 XL |
1267 | dev_uc_unsync(port_dev, dev); |
1268 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1269 | dev_close(port_dev); |
1270 | ||
1271 | err_dev_open: | |
1272 | team_port_leave(team, port); | |
1d76efe1 | 1273 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1274 | |
1275 | err_port_enter: | |
1276 | dev_set_mtu(port_dev, port->orig.mtu); | |
1277 | ||
1278 | err_set_mtu: | |
1279 | kfree(port); | |
1280 | ||
1281 | return err; | |
1282 | } | |
1283 | ||
10f3f51d JP |
1284 | static void __team_port_change_port_removed(struct team_port *port); |
1285 | ||
3d249d4c JP |
1286 | static int team_port_del(struct team *team, struct net_device *port_dev) |
1287 | { | |
1288 | struct net_device *dev = team->dev; | |
1289 | struct team_port *port; | |
1290 | char *portname = port_dev->name; | |
1291 | ||
1292 | port = team_port_get_rtnl(port_dev); | |
1293 | if (!port || !team_port_find(team, port)) { | |
1294 | netdev_err(dev, "Device %s does not act as a port of this team\n", | |
1295 | portname); | |
1296 | return -ENOENT; | |
1297 | } | |
1298 | ||
19a0b58e JP |
1299 | team_port_disable(team, port); |
1300 | list_del_rcu(&port->list); | |
8fd72856 | 1301 | team_upper_dev_unlink(team, port); |
3d249d4c | 1302 | netdev_rx_handler_unregister(port_dev); |
bd2d0837 | 1303 | team_port_disable_netpoll(port); |
57459185 | 1304 | vlan_vids_del_by_dev(port_dev, dev); |
ba81276b VY |
1305 | dev_uc_unsync(port_dev, dev); |
1306 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1307 | dev_close(port_dev); |
1308 | team_port_leave(team, port); | |
c3969d80 JP |
1309 | |
1310 | __team_option_inst_mark_removed_port(team, port); | |
1311 | __team_options_change_check(team); | |
1312 | __team_option_inst_del_port(team, port); | |
1313 | __team_port_change_port_removed(port); | |
1314 | ||
1d76efe1 | 1315 | team_port_set_orig_dev_addr(port); |
3d249d4c | 1316 | dev_set_mtu(port_dev, port->orig.mtu); |
d80b35be | 1317 | kfree_rcu(port, rcu); |
3d249d4c JP |
1318 | netdev_info(dev, "Port device %s removed\n", portname); |
1319 | __team_compute_features(team); | |
1320 | ||
1321 | return 0; | |
1322 | } | |
1323 | ||
1324 | ||
1325 | /***************** | |
1326 | * Net device ops | |
1327 | *****************/ | |
1328 | ||
80f7c668 | 1329 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1330 | { |
d299cd51 | 1331 | ctx->data.str_val = team->mode->kind; |
3d249d4c JP |
1332 | return 0; |
1333 | } | |
1334 | ||
80f7c668 | 1335 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1336 | { |
80f7c668 | 1337 | return team_change_mode(team, ctx->data.str_val); |
3d249d4c JP |
1338 | } |
1339 | ||
fc423ff0 JP |
1340 | static int team_notify_peers_count_get(struct team *team, |
1341 | struct team_gsetter_ctx *ctx) | |
1342 | { | |
1343 | ctx->data.u32_val = team->notify_peers.count; | |
1344 | return 0; | |
1345 | } | |
1346 | ||
1347 | static int team_notify_peers_count_set(struct team *team, | |
1348 | struct team_gsetter_ctx *ctx) | |
1349 | { | |
1350 | team->notify_peers.count = ctx->data.u32_val; | |
1351 | return 0; | |
1352 | } | |
1353 | ||
1354 | static int team_notify_peers_interval_get(struct team *team, | |
1355 | struct team_gsetter_ctx *ctx) | |
1356 | { | |
1357 | ctx->data.u32_val = team->notify_peers.interval; | |
1358 | return 0; | |
1359 | } | |
1360 | ||
1361 | static int team_notify_peers_interval_set(struct team *team, | |
1362 | struct team_gsetter_ctx *ctx) | |
1363 | { | |
1364 | team->notify_peers.interval = ctx->data.u32_val; | |
1365 | return 0; | |
1366 | } | |
1367 | ||
492b200e JP |
1368 | static int team_mcast_rejoin_count_get(struct team *team, |
1369 | struct team_gsetter_ctx *ctx) | |
1370 | { | |
1371 | ctx->data.u32_val = team->mcast_rejoin.count; | |
1372 | return 0; | |
1373 | } | |
1374 | ||
1375 | static int team_mcast_rejoin_count_set(struct team *team, | |
1376 | struct team_gsetter_ctx *ctx) | |
1377 | { | |
1378 | team->mcast_rejoin.count = ctx->data.u32_val; | |
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | static int team_mcast_rejoin_interval_get(struct team *team, | |
1383 | struct team_gsetter_ctx *ctx) | |
1384 | { | |
1385 | ctx->data.u32_val = team->mcast_rejoin.interval; | |
1386 | return 0; | |
1387 | } | |
1388 | ||
1389 | static int team_mcast_rejoin_interval_set(struct team *team, | |
1390 | struct team_gsetter_ctx *ctx) | |
1391 | { | |
1392 | team->mcast_rejoin.interval = ctx->data.u32_val; | |
1393 | return 0; | |
1394 | } | |
1395 | ||
acd69962 JP |
1396 | static int team_port_en_option_get(struct team *team, |
1397 | struct team_gsetter_ctx *ctx) | |
1398 | { | |
85d59a87 JP |
1399 | struct team_port *port = ctx->info->port; |
1400 | ||
1401 | ctx->data.bool_val = team_port_enabled(port); | |
acd69962 JP |
1402 | return 0; |
1403 | } | |
1404 | ||
1405 | static int team_port_en_option_set(struct team *team, | |
1406 | struct team_gsetter_ctx *ctx) | |
1407 | { | |
85d59a87 JP |
1408 | struct team_port *port = ctx->info->port; |
1409 | ||
acd69962 | 1410 | if (ctx->data.bool_val) |
85d59a87 | 1411 | team_port_enable(team, port); |
acd69962 | 1412 | else |
85d59a87 | 1413 | team_port_disable(team, port); |
acd69962 JP |
1414 | return 0; |
1415 | } | |
1416 | ||
71472ec1 JP |
1417 | static int team_user_linkup_option_get(struct team *team, |
1418 | struct team_gsetter_ctx *ctx) | |
1419 | { | |
85d59a87 JP |
1420 | struct team_port *port = ctx->info->port; |
1421 | ||
1422 | ctx->data.bool_val = port->user.linkup; | |
71472ec1 JP |
1423 | return 0; |
1424 | } | |
1425 | ||
f5e0d343 JP |
1426 | static void __team_carrier_check(struct team *team); |
1427 | ||
71472ec1 JP |
1428 | static int team_user_linkup_option_set(struct team *team, |
1429 | struct team_gsetter_ctx *ctx) | |
1430 | { | |
85d59a87 JP |
1431 | struct team_port *port = ctx->info->port; |
1432 | ||
1433 | port->user.linkup = ctx->data.bool_val; | |
1434 | team_refresh_port_linkup(port); | |
f5e0d343 | 1435 | __team_carrier_check(port->team); |
71472ec1 JP |
1436 | return 0; |
1437 | } | |
1438 | ||
1439 | static int team_user_linkup_en_option_get(struct team *team, | |
1440 | struct team_gsetter_ctx *ctx) | |
1441 | { | |
85d59a87 | 1442 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1443 | |
1444 | ctx->data.bool_val = port->user.linkup_enabled; | |
1445 | return 0; | |
1446 | } | |
1447 | ||
1448 | static int team_user_linkup_en_option_set(struct team *team, | |
1449 | struct team_gsetter_ctx *ctx) | |
1450 | { | |
85d59a87 | 1451 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1452 | |
1453 | port->user.linkup_enabled = ctx->data.bool_val; | |
85d59a87 | 1454 | team_refresh_port_linkup(port); |
f5e0d343 | 1455 | __team_carrier_check(port->team); |
71472ec1 JP |
1456 | return 0; |
1457 | } | |
1458 | ||
a86fc6b7 JP |
1459 | static int team_priority_option_get(struct team *team, |
1460 | struct team_gsetter_ctx *ctx) | |
1461 | { | |
1462 | struct team_port *port = ctx->info->port; | |
1463 | ||
1464 | ctx->data.s32_val = port->priority; | |
1465 | return 0; | |
1466 | } | |
1467 | ||
1468 | static int team_priority_option_set(struct team *team, | |
1469 | struct team_gsetter_ctx *ctx) | |
1470 | { | |
1471 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1472 | s32 priority = ctx->data.s32_val; |
a86fc6b7 | 1473 | |
6c31ff36 JP |
1474 | if (port->priority == priority) |
1475 | return 0; | |
1476 | port->priority = priority; | |
1477 | team_queue_override_port_prio_changed(team, port); | |
8ff5105a JP |
1478 | return 0; |
1479 | } | |
1480 | ||
1481 | static int team_queue_id_option_get(struct team *team, | |
1482 | struct team_gsetter_ctx *ctx) | |
1483 | { | |
1484 | struct team_port *port = ctx->info->port; | |
1485 | ||
1486 | ctx->data.u32_val = port->queue_id; | |
a86fc6b7 JP |
1487 | return 0; |
1488 | } | |
1489 | ||
8ff5105a JP |
1490 | static int team_queue_id_option_set(struct team *team, |
1491 | struct team_gsetter_ctx *ctx) | |
1492 | { | |
1493 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1494 | u16 new_queue_id = ctx->data.u32_val; |
8ff5105a | 1495 | |
6c31ff36 | 1496 | if (port->queue_id == new_queue_id) |
8ff5105a | 1497 | return 0; |
6c31ff36 | 1498 | if (new_queue_id >= team->dev->real_num_tx_queues) |
8ff5105a | 1499 | return -EINVAL; |
6c31ff36 | 1500 | team_queue_override_port_change_queue_id(team, port, new_queue_id); |
8ff5105a JP |
1501 | return 0; |
1502 | } | |
1503 | ||
358b8382 | 1504 | static const struct team_option team_options[] = { |
3d249d4c JP |
1505 | { |
1506 | .name = "mode", | |
1507 | .type = TEAM_OPTION_TYPE_STRING, | |
1508 | .getter = team_mode_option_get, | |
1509 | .setter = team_mode_option_set, | |
1510 | }, | |
fc423ff0 JP |
1511 | { |
1512 | .name = "notify_peers_count", | |
1513 | .type = TEAM_OPTION_TYPE_U32, | |
1514 | .getter = team_notify_peers_count_get, | |
1515 | .setter = team_notify_peers_count_set, | |
1516 | }, | |
1517 | { | |
1518 | .name = "notify_peers_interval", | |
1519 | .type = TEAM_OPTION_TYPE_U32, | |
1520 | .getter = team_notify_peers_interval_get, | |
1521 | .setter = team_notify_peers_interval_set, | |
1522 | }, | |
492b200e JP |
1523 | { |
1524 | .name = "mcast_rejoin_count", | |
1525 | .type = TEAM_OPTION_TYPE_U32, | |
1526 | .getter = team_mcast_rejoin_count_get, | |
1527 | .setter = team_mcast_rejoin_count_set, | |
1528 | }, | |
1529 | { | |
1530 | .name = "mcast_rejoin_interval", | |
1531 | .type = TEAM_OPTION_TYPE_U32, | |
1532 | .getter = team_mcast_rejoin_interval_get, | |
1533 | .setter = team_mcast_rejoin_interval_set, | |
1534 | }, | |
acd69962 JP |
1535 | { |
1536 | .name = "enabled", | |
1537 | .type = TEAM_OPTION_TYPE_BOOL, | |
1538 | .per_port = true, | |
1539 | .getter = team_port_en_option_get, | |
1540 | .setter = team_port_en_option_set, | |
1541 | }, | |
71472ec1 JP |
1542 | { |
1543 | .name = "user_linkup", | |
1544 | .type = TEAM_OPTION_TYPE_BOOL, | |
1545 | .per_port = true, | |
1546 | .getter = team_user_linkup_option_get, | |
1547 | .setter = team_user_linkup_option_set, | |
1548 | }, | |
1549 | { | |
1550 | .name = "user_linkup_enabled", | |
1551 | .type = TEAM_OPTION_TYPE_BOOL, | |
1552 | .per_port = true, | |
1553 | .getter = team_user_linkup_en_option_get, | |
1554 | .setter = team_user_linkup_en_option_set, | |
1555 | }, | |
a86fc6b7 JP |
1556 | { |
1557 | .name = "priority", | |
1558 | .type = TEAM_OPTION_TYPE_S32, | |
1559 | .per_port = true, | |
1560 | .getter = team_priority_option_get, | |
1561 | .setter = team_priority_option_set, | |
1562 | }, | |
8ff5105a JP |
1563 | { |
1564 | .name = "queue_id", | |
1565 | .type = TEAM_OPTION_TYPE_U32, | |
1566 | .per_port = true, | |
1567 | .getter = team_queue_id_option_get, | |
1568 | .setter = team_queue_id_option_set, | |
1569 | }, | |
3d249d4c JP |
1570 | }; |
1571 | ||
6c85f2bd JP |
1572 | static struct lock_class_key team_netdev_xmit_lock_key; |
1573 | static struct lock_class_key team_netdev_addr_lock_key; | |
b3c581d5 | 1574 | static struct lock_class_key team_tx_busylock_key; |
6c85f2bd JP |
1575 | |
1576 | static void team_set_lockdep_class_one(struct net_device *dev, | |
1577 | struct netdev_queue *txq, | |
1578 | void *unused) | |
1579 | { | |
1580 | lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); | |
1581 | } | |
1582 | ||
1583 | static void team_set_lockdep_class(struct net_device *dev) | |
1584 | { | |
1585 | lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); | |
1586 | netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); | |
b3c581d5 | 1587 | dev->qdisc_tx_busylock = &team_tx_busylock_key; |
6c85f2bd JP |
1588 | } |
1589 | ||
3d249d4c JP |
1590 | static int team_init(struct net_device *dev) |
1591 | { | |
1592 | struct team *team = netdev_priv(dev); | |
1593 | int i; | |
358b8382 | 1594 | int err; |
3d249d4c JP |
1595 | |
1596 | team->dev = dev; | |
61dc3461 | 1597 | mutex_init(&team->lock); |
d299cd51 | 1598 | team_set_no_mode(team); |
3d249d4c | 1599 | |
1c213bd2 | 1600 | team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); |
3d249d4c JP |
1601 | if (!team->pcpu_stats) |
1602 | return -ENOMEM; | |
1603 | ||
1604 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) | |
19a0b58e | 1605 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
3d249d4c | 1606 | INIT_LIST_HEAD(&team->port_list); |
8ff5105a JP |
1607 | err = team_queue_override_init(team); |
1608 | if (err) | |
1609 | goto err_team_queue_override_init; | |
3d249d4c JP |
1610 | |
1611 | team_adjust_ops(team); | |
1612 | ||
1613 | INIT_LIST_HEAD(&team->option_list); | |
80f7c668 | 1614 | INIT_LIST_HEAD(&team->option_inst_list); |
fc423ff0 JP |
1615 | |
1616 | team_notify_peers_init(team); | |
492b200e | 1617 | team_mcast_rejoin_init(team); |
fc423ff0 | 1618 | |
358b8382 JP |
1619 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
1620 | if (err) | |
1621 | goto err_options_register; | |
3d249d4c JP |
1622 | netif_carrier_off(dev); |
1623 | ||
6c85f2bd JP |
1624 | team_set_lockdep_class(dev); |
1625 | ||
3d249d4c | 1626 | return 0; |
358b8382 JP |
1627 | |
1628 | err_options_register: | |
492b200e | 1629 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1630 | team_notify_peers_fini(team); |
8ff5105a JP |
1631 | team_queue_override_fini(team); |
1632 | err_team_queue_override_init: | |
358b8382 JP |
1633 | free_percpu(team->pcpu_stats); |
1634 | ||
1635 | return err; | |
3d249d4c JP |
1636 | } |
1637 | ||
1638 | static void team_uninit(struct net_device *dev) | |
1639 | { | |
1640 | struct team *team = netdev_priv(dev); | |
1641 | struct team_port *port; | |
1642 | struct team_port *tmp; | |
1643 | ||
61dc3461 | 1644 | mutex_lock(&team->lock); |
3d249d4c JP |
1645 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
1646 | team_port_del(team, port->dev); | |
1647 | ||
1648 | __team_change_mode(team, NULL); /* cleanup */ | |
1649 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); | |
492b200e | 1650 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1651 | team_notify_peers_fini(team); |
8ff5105a | 1652 | team_queue_override_fini(team); |
61dc3461 | 1653 | mutex_unlock(&team->lock); |
3d249d4c JP |
1654 | } |
1655 | ||
1656 | static void team_destructor(struct net_device *dev) | |
1657 | { | |
1658 | struct team *team = netdev_priv(dev); | |
1659 | ||
1660 | free_percpu(team->pcpu_stats); | |
1661 | free_netdev(dev); | |
1662 | } | |
1663 | ||
1664 | static int team_open(struct net_device *dev) | |
1665 | { | |
3d249d4c JP |
1666 | return 0; |
1667 | } | |
1668 | ||
1669 | static int team_close(struct net_device *dev) | |
1670 | { | |
3d249d4c JP |
1671 | return 0; |
1672 | } | |
1673 | ||
1674 | /* | |
1675 | * note: already called with rcu_read_lock | |
1676 | */ | |
1677 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) | |
1678 | { | |
1679 | struct team *team = netdev_priv(dev); | |
8ff5105a | 1680 | bool tx_success; |
3d249d4c JP |
1681 | unsigned int len = skb->len; |
1682 | ||
8ff5105a JP |
1683 | tx_success = team_queue_override_transmit(team, skb); |
1684 | if (!tx_success) | |
1685 | tx_success = team->ops.transmit(team, skb); | |
3d249d4c JP |
1686 | if (tx_success) { |
1687 | struct team_pcpu_stats *pcpu_stats; | |
1688 | ||
1689 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
1690 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1691 | pcpu_stats->tx_packets++; | |
1692 | pcpu_stats->tx_bytes += len; | |
1693 | u64_stats_update_end(&pcpu_stats->syncp); | |
1694 | } else { | |
1695 | this_cpu_inc(team->pcpu_stats->tx_dropped); | |
1696 | } | |
1697 | ||
1698 | return NETDEV_TX_OK; | |
1699 | } | |
1700 | ||
f663dd9a | 1701 | static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 1702 | void *accel_priv, select_queue_fallback_t fallback) |
6c85f2bd JP |
1703 | { |
1704 | /* | |
1705 | * This helper function exists to help dev_pick_tx get the correct | |
1706 | * destination queue. Using a helper function skips a call to | |
1707 | * skb_tx_hash and will put the skbs in the queue we expect on their | |
1708 | * way down to the team driver. | |
1709 | */ | |
1710 | u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; | |
1711 | ||
1712 | /* | |
1713 | * Save the original txq to restore before passing to the driver | |
1714 | */ | |
1715 | qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; | |
1716 | ||
1717 | if (unlikely(txq >= dev->real_num_tx_queues)) { | |
1718 | do { | |
1719 | txq -= dev->real_num_tx_queues; | |
1720 | } while (txq >= dev->real_num_tx_queues); | |
1721 | } | |
1722 | return txq; | |
1723 | } | |
1724 | ||
3d249d4c JP |
1725 | static void team_change_rx_flags(struct net_device *dev, int change) |
1726 | { | |
1727 | struct team *team = netdev_priv(dev); | |
1728 | struct team_port *port; | |
1729 | int inc; | |
1730 | ||
1731 | rcu_read_lock(); | |
1732 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1733 | if (change & IFF_PROMISC) { | |
1734 | inc = dev->flags & IFF_PROMISC ? 1 : -1; | |
1735 | dev_set_promiscuity(port->dev, inc); | |
1736 | } | |
1737 | if (change & IFF_ALLMULTI) { | |
1738 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; | |
1739 | dev_set_allmulti(port->dev, inc); | |
1740 | } | |
1741 | } | |
1742 | rcu_read_unlock(); | |
1743 | } | |
1744 | ||
1745 | static void team_set_rx_mode(struct net_device *dev) | |
1746 | { | |
1747 | struct team *team = netdev_priv(dev); | |
1748 | struct team_port *port; | |
1749 | ||
1750 | rcu_read_lock(); | |
1751 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
72b27032 VY |
1752 | dev_uc_sync_multiple(port->dev, dev); |
1753 | dev_mc_sync_multiple(port->dev, dev); | |
3d249d4c JP |
1754 | } |
1755 | rcu_read_unlock(); | |
1756 | } | |
1757 | ||
1758 | static int team_set_mac_address(struct net_device *dev, void *p) | |
1759 | { | |
1d76efe1 | 1760 | struct sockaddr *addr = p; |
3d249d4c JP |
1761 | struct team *team = netdev_priv(dev); |
1762 | struct team_port *port; | |
3d249d4c | 1763 | |
1d76efe1 JP |
1764 | if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) |
1765 | return -EADDRNOTAVAIL; | |
1766 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
9215f437 JP |
1767 | mutex_lock(&team->lock); |
1768 | list_for_each_entry(port, &team->port_list, list) | |
1d76efe1 JP |
1769 | if (team->ops.port_change_dev_addr) |
1770 | team->ops.port_change_dev_addr(team, port); | |
9215f437 | 1771 | mutex_unlock(&team->lock); |
3d249d4c JP |
1772 | return 0; |
1773 | } | |
1774 | ||
1775 | static int team_change_mtu(struct net_device *dev, int new_mtu) | |
1776 | { | |
1777 | struct team *team = netdev_priv(dev); | |
1778 | struct team_port *port; | |
1779 | int err; | |
1780 | ||
1781 | /* | |
1782 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1783 | * to traverse list in reverse under rcu_read_lock | |
1784 | */ | |
61dc3461 | 1785 | mutex_lock(&team->lock); |
9d0d68fa | 1786 | team->port_mtu_change_allowed = true; |
3d249d4c JP |
1787 | list_for_each_entry(port, &team->port_list, list) { |
1788 | err = dev_set_mtu(port->dev, new_mtu); | |
1789 | if (err) { | |
1790 | netdev_err(dev, "Device %s failed to change mtu", | |
1791 | port->dev->name); | |
1792 | goto unwind; | |
1793 | } | |
1794 | } | |
9d0d68fa | 1795 | team->port_mtu_change_allowed = false; |
61dc3461 | 1796 | mutex_unlock(&team->lock); |
3d249d4c JP |
1797 | |
1798 | dev->mtu = new_mtu; | |
1799 | ||
1800 | return 0; | |
1801 | ||
1802 | unwind: | |
1803 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1804 | dev_set_mtu(port->dev, dev->mtu); | |
9d0d68fa | 1805 | team->port_mtu_change_allowed = false; |
61dc3461 | 1806 | mutex_unlock(&team->lock); |
3d249d4c JP |
1807 | |
1808 | return err; | |
1809 | } | |
1810 | ||
1811 | static struct rtnl_link_stats64 * | |
1812 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
1813 | { | |
1814 | struct team *team = netdev_priv(dev); | |
1815 | struct team_pcpu_stats *p; | |
1816 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; | |
bb63daf9 | 1817 | u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0; |
3d249d4c JP |
1818 | unsigned int start; |
1819 | int i; | |
1820 | ||
1821 | for_each_possible_cpu(i) { | |
1822 | p = per_cpu_ptr(team->pcpu_stats, i); | |
1823 | do { | |
57a7744e | 1824 | start = u64_stats_fetch_begin_irq(&p->syncp); |
3d249d4c JP |
1825 | rx_packets = p->rx_packets; |
1826 | rx_bytes = p->rx_bytes; | |
1827 | rx_multicast = p->rx_multicast; | |
1828 | tx_packets = p->tx_packets; | |
1829 | tx_bytes = p->tx_bytes; | |
57a7744e | 1830 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
3d249d4c JP |
1831 | |
1832 | stats->rx_packets += rx_packets; | |
1833 | stats->rx_bytes += rx_bytes; | |
1834 | stats->multicast += rx_multicast; | |
1835 | stats->tx_packets += tx_packets; | |
1836 | stats->tx_bytes += tx_bytes; | |
1837 | /* | |
bb63daf9 JW |
1838 | * rx_dropped, tx_dropped & rx_nohandler are u32, |
1839 | * updated without syncp protection. | |
3d249d4c JP |
1840 | */ |
1841 | rx_dropped += p->rx_dropped; | |
1842 | tx_dropped += p->tx_dropped; | |
bb63daf9 | 1843 | rx_nohandler += p->rx_nohandler; |
3d249d4c JP |
1844 | } |
1845 | stats->rx_dropped = rx_dropped; | |
1846 | stats->tx_dropped = tx_dropped; | |
bb63daf9 | 1847 | stats->rx_nohandler = rx_nohandler; |
3d249d4c JP |
1848 | return stats; |
1849 | } | |
1850 | ||
80d5c368 | 1851 | static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1852 | { |
1853 | struct team *team = netdev_priv(dev); | |
1854 | struct team_port *port; | |
87002b03 | 1855 | int err; |
3d249d4c | 1856 | |
87002b03 JP |
1857 | /* |
1858 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1859 | * to traverse list in reverse under rcu_read_lock | |
1860 | */ | |
1861 | mutex_lock(&team->lock); | |
1862 | list_for_each_entry(port, &team->port_list, list) { | |
80d5c368 | 1863 | err = vlan_vid_add(port->dev, proto, vid); |
87002b03 JP |
1864 | if (err) |
1865 | goto unwind; | |
3d249d4c | 1866 | } |
87002b03 | 1867 | mutex_unlock(&team->lock); |
8e586137 JP |
1868 | |
1869 | return 0; | |
87002b03 JP |
1870 | |
1871 | unwind: | |
1872 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
80d5c368 | 1873 | vlan_vid_del(port->dev, proto, vid); |
87002b03 JP |
1874 | mutex_unlock(&team->lock); |
1875 | ||
1876 | return err; | |
3d249d4c JP |
1877 | } |
1878 | ||
80d5c368 | 1879 | static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1880 | { |
1881 | struct team *team = netdev_priv(dev); | |
1882 | struct team_port *port; | |
1883 | ||
60a6531b IS |
1884 | mutex_lock(&team->lock); |
1885 | list_for_each_entry(port, &team->port_list, list) | |
80d5c368 | 1886 | vlan_vid_del(port->dev, proto, vid); |
60a6531b | 1887 | mutex_unlock(&team->lock); |
8e586137 JP |
1888 | |
1889 | return 0; | |
3d249d4c JP |
1890 | } |
1891 | ||
bd2d0837 JP |
1892 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1893 | static void team_poll_controller(struct net_device *dev) | |
1894 | { | |
1895 | } | |
1896 | ||
1897 | static void __team_netpoll_cleanup(struct team *team) | |
1898 | { | |
1899 | struct team_port *port; | |
1900 | ||
1901 | list_for_each_entry(port, &team->port_list, list) | |
1902 | team_port_disable_netpoll(port); | |
1903 | } | |
1904 | ||
1905 | static void team_netpoll_cleanup(struct net_device *dev) | |
1906 | { | |
1907 | struct team *team = netdev_priv(dev); | |
1908 | ||
1909 | mutex_lock(&team->lock); | |
1910 | __team_netpoll_cleanup(team); | |
1911 | mutex_unlock(&team->lock); | |
1912 | } | |
1913 | ||
1914 | static int team_netpoll_setup(struct net_device *dev, | |
a8779ec1 | 1915 | struct netpoll_info *npifo) |
bd2d0837 JP |
1916 | { |
1917 | struct team *team = netdev_priv(dev); | |
1918 | struct team_port *port; | |
3324d024 | 1919 | int err = 0; |
bd2d0837 JP |
1920 | |
1921 | mutex_lock(&team->lock); | |
1922 | list_for_each_entry(port, &team->port_list, list) { | |
a8779ec1 | 1923 | err = team_port_enable_netpoll(team, port); |
bd2d0837 JP |
1924 | if (err) { |
1925 | __team_netpoll_cleanup(team); | |
1926 | break; | |
1927 | } | |
1928 | } | |
1929 | mutex_unlock(&team->lock); | |
1930 | return err; | |
1931 | } | |
1932 | #endif | |
1933 | ||
3d249d4c JP |
1934 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev) |
1935 | { | |
1936 | struct team *team = netdev_priv(dev); | |
1937 | int err; | |
1938 | ||
61dc3461 | 1939 | mutex_lock(&team->lock); |
3d249d4c | 1940 | err = team_port_add(team, port_dev); |
61dc3461 | 1941 | mutex_unlock(&team->lock); |
3d249d4c JP |
1942 | return err; |
1943 | } | |
1944 | ||
1945 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) | |
1946 | { | |
1947 | struct team *team = netdev_priv(dev); | |
1948 | int err; | |
1949 | ||
61dc3461 | 1950 | mutex_lock(&team->lock); |
3d249d4c | 1951 | err = team_port_del(team, port_dev); |
61dc3461 | 1952 | mutex_unlock(&team->lock); |
3d249d4c JP |
1953 | return err; |
1954 | } | |
1955 | ||
234a8fd4 JP |
1956 | static netdev_features_t team_fix_features(struct net_device *dev, |
1957 | netdev_features_t features) | |
1958 | { | |
1959 | struct team_port *port; | |
1960 | struct team *team = netdev_priv(dev); | |
1961 | netdev_features_t mask; | |
1962 | ||
7889cbee | 1963 | mask = features; |
234a8fd4 JP |
1964 | features &= ~NETIF_F_ONE_FOR_ALL; |
1965 | features |= NETIF_F_ALL_FOR_ALL; | |
1966 | ||
1967 | rcu_read_lock(); | |
1968 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1969 | features = netdev_increment_features(features, | |
1970 | port->dev->features, | |
1971 | mask); | |
1972 | } | |
1973 | rcu_read_unlock(); | |
247f6d0f JP |
1974 | |
1975 | features = netdev_add_tso_features(features, mask); | |
1976 | ||
234a8fd4 JP |
1977 | return features; |
1978 | } | |
1979 | ||
4cafe373 FL |
1980 | static int team_change_carrier(struct net_device *dev, bool new_carrier) |
1981 | { | |
e185483e FL |
1982 | struct team *team = netdev_priv(dev); |
1983 | ||
1984 | team->user_carrier_enabled = true; | |
1985 | ||
4cafe373 FL |
1986 | if (new_carrier) |
1987 | netif_carrier_on(dev); | |
1988 | else | |
1989 | netif_carrier_off(dev); | |
1990 | return 0; | |
1991 | } | |
1992 | ||
3d249d4c JP |
1993 | static const struct net_device_ops team_netdev_ops = { |
1994 | .ndo_init = team_init, | |
1995 | .ndo_uninit = team_uninit, | |
1996 | .ndo_open = team_open, | |
1997 | .ndo_stop = team_close, | |
1998 | .ndo_start_xmit = team_xmit, | |
6c85f2bd | 1999 | .ndo_select_queue = team_select_queue, |
3d249d4c JP |
2000 | .ndo_change_rx_flags = team_change_rx_flags, |
2001 | .ndo_set_rx_mode = team_set_rx_mode, | |
2002 | .ndo_set_mac_address = team_set_mac_address, | |
2003 | .ndo_change_mtu = team_change_mtu, | |
2004 | .ndo_get_stats64 = team_get_stats64, | |
2005 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, | |
2006 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, | |
bd2d0837 JP |
2007 | #ifdef CONFIG_NET_POLL_CONTROLLER |
2008 | .ndo_poll_controller = team_poll_controller, | |
2009 | .ndo_netpoll_setup = team_netpoll_setup, | |
2010 | .ndo_netpoll_cleanup = team_netpoll_cleanup, | |
2011 | #endif | |
3d249d4c JP |
2012 | .ndo_add_slave = team_add_slave, |
2013 | .ndo_del_slave = team_del_slave, | |
234a8fd4 | 2014 | .ndo_fix_features = team_fix_features, |
4cafe373 | 2015 | .ndo_change_carrier = team_change_carrier, |
fc8f40d8 | 2016 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, |
85fdb956 | 2017 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
54ba5a0b | 2018 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, |
45d4122c SS |
2019 | .ndo_fdb_add = switchdev_port_fdb_add, |
2020 | .ndo_fdb_del = switchdev_port_fdb_del, | |
2021 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
b9f4cf75 | 2022 | .ndo_features_check = passthru_features_check, |
3d249d4c JP |
2023 | }; |
2024 | ||
7f51c587 FL |
2025 | /*********************** |
2026 | * ethtool interface | |
2027 | ***********************/ | |
2028 | ||
2029 | static void team_ethtool_get_drvinfo(struct net_device *dev, | |
2030 | struct ethtool_drvinfo *drvinfo) | |
2031 | { | |
3066af58 FL |
2032 | strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
2033 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
7f51c587 FL |
2034 | } |
2035 | ||
2036 | static const struct ethtool_ops team_ethtool_ops = { | |
2037 | .get_drvinfo = team_ethtool_get_drvinfo, | |
2038 | .get_link = ethtool_op_get_link, | |
2039 | }; | |
3d249d4c JP |
2040 | |
2041 | /*********************** | |
2042 | * rt netlink interface | |
2043 | ***********************/ | |
2044 | ||
1d76efe1 JP |
2045 | static void team_setup_by_port(struct net_device *dev, |
2046 | struct net_device *port_dev) | |
2047 | { | |
2048 | dev->header_ops = port_dev->header_ops; | |
2049 | dev->type = port_dev->type; | |
2050 | dev->hard_header_len = port_dev->hard_header_len; | |
2051 | dev->addr_len = port_dev->addr_len; | |
2052 | dev->mtu = port_dev->mtu; | |
2053 | memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); | |
93af7357 | 2054 | eth_hw_addr_inherit(dev, port_dev); |
1d76efe1 JP |
2055 | } |
2056 | ||
2057 | static int team_dev_type_check_change(struct net_device *dev, | |
2058 | struct net_device *port_dev) | |
2059 | { | |
2060 | struct team *team = netdev_priv(dev); | |
2061 | char *portname = port_dev->name; | |
2062 | int err; | |
2063 | ||
2064 | if (dev->type == port_dev->type) | |
2065 | return 0; | |
2066 | if (!list_empty(&team->port_list)) { | |
2067 | netdev_err(dev, "Device %s is of different type\n", portname); | |
2068 | return -EBUSY; | |
2069 | } | |
2070 | err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); | |
2071 | err = notifier_to_errno(err); | |
2072 | if (err) { | |
2073 | netdev_err(dev, "Refused to change device type\n"); | |
2074 | return err; | |
2075 | } | |
2076 | dev_uc_flush(dev); | |
2077 | dev_mc_flush(dev); | |
2078 | team_setup_by_port(dev, port_dev); | |
2079 | call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); | |
2080 | return 0; | |
2081 | } | |
2082 | ||
3d249d4c JP |
2083 | static void team_setup(struct net_device *dev) |
2084 | { | |
2085 | ether_setup(dev); | |
2086 | ||
2087 | dev->netdev_ops = &team_netdev_ops; | |
7f51c587 | 2088 | dev->ethtool_ops = &team_ethtool_ops; |
3d249d4c | 2089 | dev->destructor = team_destructor; |
3d249d4c | 2090 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); |
22e380a6 | 2091 | dev->priv_flags |= IFF_NO_QUEUE; |
c981e421 | 2092 | dev->priv_flags |= IFF_TEAM; |
3d249d4c JP |
2093 | |
2094 | /* | |
2095 | * Indicate we support unicast address filtering. That way core won't | |
2096 | * bring us to promisc mode in case a unicast addr is added. | |
2097 | * Let this up to underlay drivers. | |
2098 | */ | |
5a1d1c8c | 2099 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
3d249d4c JP |
2100 | |
2101 | dev->features |= NETIF_F_LLTX; | |
2102 | dev->features |= NETIF_F_GRO; | |
99301ba1 WC |
2103 | |
2104 | /* Don't allow team devices to change network namespaces. */ | |
2105 | dev->features |= NETIF_F_NETNS_LOCAL; | |
2106 | ||
3ed71471 | 2107 | dev->hw_features = TEAM_VLAN_FEATURES | |
f646968f PM |
2108 | NETIF_F_HW_VLAN_CTAG_TX | |
2109 | NETIF_F_HW_VLAN_CTAG_RX | | |
2110 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
3d249d4c | 2111 | |
3268e5cb | 2112 | dev->hw_features |= NETIF_F_GSO_ENCAP_ALL; |
3d249d4c JP |
2113 | dev->features |= dev->hw_features; |
2114 | } | |
2115 | ||
2116 | static int team_newlink(struct net *src_net, struct net_device *dev, | |
2117 | struct nlattr *tb[], struct nlattr *data[]) | |
2118 | { | |
3d249d4c | 2119 | if (tb[IFLA_ADDRESS] == NULL) |
7ce5d222 | 2120 | eth_hw_addr_random(dev); |
3d249d4c | 2121 | |
ff204cce | 2122 | return register_netdevice(dev); |
3d249d4c JP |
2123 | } |
2124 | ||
2125 | static int team_validate(struct nlattr *tb[], struct nlattr *data[]) | |
2126 | { | |
2127 | if (tb[IFLA_ADDRESS]) { | |
2128 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
2129 | return -EINVAL; | |
2130 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
2131 | return -EADDRNOTAVAIL; | |
2132 | } | |
2133 | return 0; | |
2134 | } | |
2135 | ||
6c85f2bd JP |
2136 | static unsigned int team_get_num_tx_queues(void) |
2137 | { | |
2138 | return TEAM_DEFAULT_NUM_TX_QUEUES; | |
2139 | } | |
2140 | ||
2141 | static unsigned int team_get_num_rx_queues(void) | |
2142 | { | |
2143 | return TEAM_DEFAULT_NUM_RX_QUEUES; | |
2144 | } | |
2145 | ||
3d249d4c | 2146 | static struct rtnl_link_ops team_link_ops __read_mostly = { |
6c85f2bd JP |
2147 | .kind = DRV_NAME, |
2148 | .priv_size = sizeof(struct team), | |
2149 | .setup = team_setup, | |
2150 | .newlink = team_newlink, | |
2151 | .validate = team_validate, | |
2152 | .get_num_tx_queues = team_get_num_tx_queues, | |
2153 | .get_num_rx_queues = team_get_num_rx_queues, | |
3d249d4c JP |
2154 | }; |
2155 | ||
2156 | ||
2157 | /*********************************** | |
2158 | * Generic netlink custom interface | |
2159 | ***********************************/ | |
2160 | ||
2161 | static struct genl_family team_nl_family = { | |
2162 | .id = GENL_ID_GENERATE, | |
2163 | .name = TEAM_GENL_NAME, | |
2164 | .version = TEAM_GENL_VERSION, | |
2165 | .maxattr = TEAM_ATTR_MAX, | |
2166 | .netnsok = true, | |
2167 | }; | |
2168 | ||
2169 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { | |
2170 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2171 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, | |
2172 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, | |
2173 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, | |
2174 | }; | |
2175 | ||
2176 | static const struct nla_policy | |
2177 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { | |
2178 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2179 | [TEAM_ATTR_OPTION_NAME] = { | |
2180 | .type = NLA_STRING, | |
2181 | .len = TEAM_STRING_MAX_LEN, | |
2182 | }, | |
2183 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, | |
2184 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, | |
2615598f | 2185 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
3d249d4c JP |
2186 | }; |
2187 | ||
2188 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) | |
2189 | { | |
2190 | struct sk_buff *msg; | |
2191 | void *hdr; | |
2192 | int err; | |
2193 | ||
58050fce | 2194 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
2195 | if (!msg) |
2196 | return -ENOMEM; | |
2197 | ||
15e47304 | 2198 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, |
3d249d4c | 2199 | &team_nl_family, 0, TEAM_CMD_NOOP); |
a326e6dd WY |
2200 | if (!hdr) { |
2201 | err = -EMSGSIZE; | |
3d249d4c JP |
2202 | goto err_msg_put; |
2203 | } | |
2204 | ||
2205 | genlmsg_end(msg, hdr); | |
2206 | ||
15e47304 | 2207 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); |
3d249d4c JP |
2208 | |
2209 | err_msg_put: | |
2210 | nlmsg_free(msg); | |
2211 | ||
2212 | return err; | |
2213 | } | |
2214 | ||
2215 | /* | |
2216 | * Netlink cmd functions should be locked by following two functions. | |
8c0713a5 | 2217 | * Since dev gets held here, that ensures dev won't disappear in between. |
3d249d4c JP |
2218 | */ |
2219 | static struct team *team_nl_team_get(struct genl_info *info) | |
2220 | { | |
2221 | struct net *net = genl_info_net(info); | |
2222 | int ifindex; | |
2223 | struct net_device *dev; | |
2224 | struct team *team; | |
2225 | ||
2226 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) | |
2227 | return NULL; | |
2228 | ||
2229 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); | |
8c0713a5 | 2230 | dev = dev_get_by_index(net, ifindex); |
3d249d4c | 2231 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
8c0713a5 JP |
2232 | if (dev) |
2233 | dev_put(dev); | |
3d249d4c JP |
2234 | return NULL; |
2235 | } | |
2236 | ||
2237 | team = netdev_priv(dev); | |
61dc3461 | 2238 | mutex_lock(&team->lock); |
3d249d4c JP |
2239 | return team; |
2240 | } | |
2241 | ||
2242 | static void team_nl_team_put(struct team *team) | |
2243 | { | |
61dc3461 | 2244 | mutex_unlock(&team->lock); |
8c0713a5 | 2245 | dev_put(team->dev); |
3d249d4c JP |
2246 | } |
2247 | ||
9b00cf2d | 2248 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
15e47304 | 2249 | struct team *team, u32 portid); |
9b00cf2d | 2250 | |
15e47304 | 2251 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) |
9b00cf2d | 2252 | { |
15e47304 | 2253 | return genlmsg_unicast(dev_net(team->dev), skb, portid); |
9b00cf2d JP |
2254 | } |
2255 | ||
01048d9a JP |
2256 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
2257 | struct team_option_inst *opt_inst) | |
2258 | { | |
2259 | struct nlattr *option_item; | |
2260 | struct team_option *option = opt_inst->option; | |
9b00cf2d | 2261 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
01048d9a JP |
2262 | struct team_gsetter_ctx ctx; |
2263 | int err; | |
2264 | ||
9b00cf2d JP |
2265 | ctx.info = opt_inst_info; |
2266 | err = team_option_get(team, opt_inst, &ctx); | |
2267 | if (err) | |
2268 | return err; | |
2269 | ||
01048d9a JP |
2270 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
2271 | if (!option_item) | |
9b00cf2d | 2272 | return -EMSGSIZE; |
01048d9a | 2273 | |
9b00cf2d JP |
2274 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
2275 | goto nest_cancel; | |
01048d9a JP |
2276 | if (opt_inst_info->port && |
2277 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, | |
2278 | opt_inst_info->port->dev->ifindex)) | |
9b00cf2d | 2279 | goto nest_cancel; |
01048d9a JP |
2280 | if (opt_inst->option->array_size && |
2281 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, | |
2282 | opt_inst_info->array_index)) | |
9b00cf2d | 2283 | goto nest_cancel; |
01048d9a JP |
2284 | |
2285 | switch (option->type) { | |
2286 | case TEAM_OPTION_TYPE_U32: | |
2287 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) | |
9b00cf2d | 2288 | goto nest_cancel; |
01048d9a | 2289 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
9b00cf2d | 2290 | goto nest_cancel; |
01048d9a JP |
2291 | break; |
2292 | case TEAM_OPTION_TYPE_STRING: | |
2293 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) | |
9b00cf2d | 2294 | goto nest_cancel; |
01048d9a JP |
2295 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
2296 | ctx.data.str_val)) | |
9b00cf2d | 2297 | goto nest_cancel; |
01048d9a JP |
2298 | break; |
2299 | case TEAM_OPTION_TYPE_BINARY: | |
2300 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) | |
9b00cf2d | 2301 | goto nest_cancel; |
01048d9a JP |
2302 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
2303 | ctx.data.bin_val.ptr)) | |
9b00cf2d | 2304 | goto nest_cancel; |
01048d9a JP |
2305 | break; |
2306 | case TEAM_OPTION_TYPE_BOOL: | |
2307 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) | |
9b00cf2d | 2308 | goto nest_cancel; |
01048d9a JP |
2309 | if (ctx.data.bool_val && |
2310 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) | |
9b00cf2d | 2311 | goto nest_cancel; |
01048d9a | 2312 | break; |
69821638 JP |
2313 | case TEAM_OPTION_TYPE_S32: |
2314 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) | |
2315 | goto nest_cancel; | |
2316 | if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) | |
2317 | goto nest_cancel; | |
2318 | break; | |
01048d9a JP |
2319 | default: |
2320 | BUG(); | |
2321 | } | |
9b00cf2d JP |
2322 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
2323 | goto nest_cancel; | |
2324 | if (opt_inst->changed) { | |
2325 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) | |
2326 | goto nest_cancel; | |
2327 | opt_inst->changed = false; | |
2328 | } | |
01048d9a JP |
2329 | nla_nest_end(skb, option_item); |
2330 | return 0; | |
2331 | ||
9b00cf2d JP |
2332 | nest_cancel: |
2333 | nla_nest_cancel(skb, option_item); | |
2334 | return -EMSGSIZE; | |
2335 | } | |
2336 | ||
2337 | static int __send_and_alloc_skb(struct sk_buff **pskb, | |
15e47304 | 2338 | struct team *team, u32 portid, |
9b00cf2d JP |
2339 | team_nl_send_func_t *send_func) |
2340 | { | |
2341 | int err; | |
2342 | ||
2343 | if (*pskb) { | |
15e47304 | 2344 | err = send_func(*pskb, team, portid); |
9b00cf2d JP |
2345 | if (err) |
2346 | return err; | |
2347 | } | |
58050fce | 2348 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9b00cf2d JP |
2349 | if (!*pskb) |
2350 | return -ENOMEM; | |
2351 | return 0; | |
01048d9a JP |
2352 | } |
2353 | ||
15e47304 | 2354 | static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, |
9b00cf2d | 2355 | int flags, team_nl_send_func_t *send_func, |
01048d9a | 2356 | struct list_head *sel_opt_inst_list) |
3d249d4c JP |
2357 | { |
2358 | struct nlattr *option_list; | |
9b00cf2d | 2359 | struct nlmsghdr *nlh; |
3d249d4c | 2360 | void *hdr; |
80f7c668 JP |
2361 | struct team_option_inst *opt_inst; |
2362 | int err; | |
9b00cf2d JP |
2363 | struct sk_buff *skb = NULL; |
2364 | bool incomplete; | |
2365 | int i; | |
3d249d4c | 2366 | |
9b00cf2d JP |
2367 | opt_inst = list_first_entry(sel_opt_inst_list, |
2368 | struct team_option_inst, tmp_list); | |
2369 | ||
2370 | start_again: | |
15e47304 | 2371 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2372 | if (err) |
2373 | return err; | |
2374 | ||
15e47304 | 2375 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
3d249d4c | 2376 | TEAM_CMD_OPTIONS_GET); |
a326e6dd WY |
2377 | if (!hdr) |
2378 | return -EMSGSIZE; | |
3d249d4c | 2379 | |
86ebb02d DM |
2380 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2381 | goto nla_put_failure; | |
3d249d4c JP |
2382 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
2383 | if (!option_list) | |
75db986a | 2384 | goto nla_put_failure; |
3d249d4c | 2385 | |
9b00cf2d JP |
2386 | i = 0; |
2387 | incomplete = false; | |
2388 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { | |
01048d9a | 2389 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
9b00cf2d JP |
2390 | if (err) { |
2391 | if (err == -EMSGSIZE) { | |
2392 | if (!i) | |
2393 | goto errout; | |
2394 | incomplete = true; | |
2395 | break; | |
2396 | } | |
01048d9a | 2397 | goto errout; |
9b00cf2d JP |
2398 | } |
2399 | i++; | |
3d249d4c JP |
2400 | } |
2401 | ||
2402 | nla_nest_end(skb, option_list); | |
9b00cf2d JP |
2403 | genlmsg_end(skb, hdr); |
2404 | if (incomplete) | |
2405 | goto start_again; | |
2406 | ||
2407 | send_done: | |
15e47304 | 2408 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
9b00cf2d | 2409 | if (!nlh) { |
15e47304 | 2410 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2411 | if (err) |
2412 | goto errout; | |
2413 | goto send_done; | |
2414 | } | |
2415 | ||
15e47304 | 2416 | return send_func(skb, team, portid); |
3d249d4c JP |
2417 | |
2418 | nla_put_failure: | |
80f7c668 JP |
2419 | err = -EMSGSIZE; |
2420 | errout: | |
3d249d4c | 2421 | genlmsg_cancel(skb, hdr); |
9b00cf2d | 2422 | nlmsg_free(skb); |
80f7c668 | 2423 | return err; |
3d249d4c JP |
2424 | } |
2425 | ||
3d249d4c JP |
2426 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
2427 | { | |
2428 | struct team *team; | |
9b00cf2d | 2429 | struct team_option_inst *opt_inst; |
3d249d4c | 2430 | int err; |
9b00cf2d | 2431 | LIST_HEAD(sel_opt_inst_list); |
3d249d4c JP |
2432 | |
2433 | team = team_nl_team_get(info); | |
2434 | if (!team) | |
2435 | return -EINVAL; | |
2436 | ||
9b00cf2d JP |
2437 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
2438 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
15e47304 | 2439 | err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, |
9b00cf2d JP |
2440 | NLM_F_ACK, team_nl_send_unicast, |
2441 | &sel_opt_inst_list); | |
3d249d4c JP |
2442 | |
2443 | team_nl_team_put(team); | |
2444 | ||
2445 | return err; | |
2446 | } | |
2447 | ||
2fcdb2c9 JP |
2448 | static int team_nl_send_event_options_get(struct team *team, |
2449 | struct list_head *sel_opt_inst_list); | |
2450 | ||
3d249d4c JP |
2451 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
2452 | { | |
2453 | struct team *team; | |
2454 | int err = 0; | |
2455 | int i; | |
2456 | struct nlattr *nl_option; | |
2fcdb2c9 | 2457 | LIST_HEAD(opt_inst_list); |
3d249d4c | 2458 | |
7d259505 JP |
2459 | rtnl_lock(); |
2460 | ||
3d249d4c | 2461 | team = team_nl_team_get(info); |
7d259505 JP |
2462 | if (!team) { |
2463 | err = -EINVAL; | |
2464 | goto rtnl_unlock; | |
2465 | } | |
3d249d4c JP |
2466 | |
2467 | err = -EINVAL; | |
2468 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { | |
2469 | err = -EINVAL; | |
2470 | goto team_put; | |
2471 | } | |
2472 | ||
2473 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { | |
80f7c668 | 2474 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
b1303326 | 2475 | struct nlattr *attr; |
14f066ba | 2476 | struct nlattr *attr_data; |
3d249d4c | 2477 | enum team_option_type opt_type; |
80f7c668 | 2478 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
b1303326 JP |
2479 | u32 opt_array_index = 0; |
2480 | bool opt_is_array = false; | |
80f7c668 | 2481 | struct team_option_inst *opt_inst; |
3d249d4c JP |
2482 | char *opt_name; |
2483 | bool opt_found = false; | |
2484 | ||
2485 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { | |
2486 | err = -EINVAL; | |
2487 | goto team_put; | |
2488 | } | |
80f7c668 | 2489 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
3d249d4c JP |
2490 | nl_option, team_nl_option_policy); |
2491 | if (err) | |
2492 | goto team_put; | |
80f7c668 | 2493 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
14f066ba | 2494 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
3d249d4c JP |
2495 | err = -EINVAL; |
2496 | goto team_put; | |
2497 | } | |
80f7c668 | 2498 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
3d249d4c JP |
2499 | case NLA_U32: |
2500 | opt_type = TEAM_OPTION_TYPE_U32; | |
2501 | break; | |
2502 | case NLA_STRING: | |
2503 | opt_type = TEAM_OPTION_TYPE_STRING; | |
2504 | break; | |
2615598f JP |
2505 | case NLA_BINARY: |
2506 | opt_type = TEAM_OPTION_TYPE_BINARY; | |
2507 | break; | |
14f066ba JP |
2508 | case NLA_FLAG: |
2509 | opt_type = TEAM_OPTION_TYPE_BOOL; | |
2510 | break; | |
69821638 JP |
2511 | case NLA_S32: |
2512 | opt_type = TEAM_OPTION_TYPE_S32; | |
2513 | break; | |
3d249d4c JP |
2514 | default: |
2515 | goto team_put; | |
2516 | } | |
2517 | ||
14f066ba JP |
2518 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
2519 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { | |
2520 | err = -EINVAL; | |
2521 | goto team_put; | |
2522 | } | |
2523 | ||
80f7c668 | 2524 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
b1303326 JP |
2525 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
2526 | if (attr) | |
2527 | opt_port_ifindex = nla_get_u32(attr); | |
2528 | ||
2529 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; | |
2530 | if (attr) { | |
2531 | opt_is_array = true; | |
2532 | opt_array_index = nla_get_u32(attr); | |
2533 | } | |
80f7c668 JP |
2534 | |
2535 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
2536 | struct team_option *option = opt_inst->option; | |
80f7c668 | 2537 | struct team_gsetter_ctx ctx; |
85d59a87 | 2538 | struct team_option_inst_info *opt_inst_info; |
80f7c668 | 2539 | int tmp_ifindex; |
3d249d4c | 2540 | |
85d59a87 JP |
2541 | opt_inst_info = &opt_inst->info; |
2542 | tmp_ifindex = opt_inst_info->port ? | |
2543 | opt_inst_info->port->dev->ifindex : 0; | |
3d249d4c | 2544 | if (option->type != opt_type || |
80f7c668 | 2545 | strcmp(option->name, opt_name) || |
b1303326 JP |
2546 | tmp_ifindex != opt_port_ifindex || |
2547 | (option->array_size && !opt_is_array) || | |
85d59a87 | 2548 | opt_inst_info->array_index != opt_array_index) |
3d249d4c JP |
2549 | continue; |
2550 | opt_found = true; | |
85d59a87 | 2551 | ctx.info = opt_inst_info; |
3d249d4c JP |
2552 | switch (opt_type) { |
2553 | case TEAM_OPTION_TYPE_U32: | |
14f066ba | 2554 | ctx.data.u32_val = nla_get_u32(attr_data); |
3d249d4c JP |
2555 | break; |
2556 | case TEAM_OPTION_TYPE_STRING: | |
14f066ba | 2557 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
2615598f JP |
2558 | err = -EINVAL; |
2559 | goto team_put; | |
2560 | } | |
14f066ba | 2561 | ctx.data.str_val = nla_data(attr_data); |
3d249d4c | 2562 | break; |
2615598f | 2563 | case TEAM_OPTION_TYPE_BINARY: |
14f066ba JP |
2564 | ctx.data.bin_val.len = nla_len(attr_data); |
2565 | ctx.data.bin_val.ptr = nla_data(attr_data); | |
2566 | break; | |
2567 | case TEAM_OPTION_TYPE_BOOL: | |
2568 | ctx.data.bool_val = attr_data ? true : false; | |
2615598f | 2569 | break; |
69821638 JP |
2570 | case TEAM_OPTION_TYPE_S32: |
2571 | ctx.data.s32_val = nla_get_s32(attr_data); | |
2572 | break; | |
3d249d4c JP |
2573 | default: |
2574 | BUG(); | |
2575 | } | |
80f7c668 | 2576 | err = team_option_set(team, opt_inst, &ctx); |
3d249d4c JP |
2577 | if (err) |
2578 | goto team_put; | |
2fcdb2c9 JP |
2579 | opt_inst->changed = true; |
2580 | list_add(&opt_inst->tmp_list, &opt_inst_list); | |
3d249d4c JP |
2581 | } |
2582 | if (!opt_found) { | |
2583 | err = -ENOENT; | |
2584 | goto team_put; | |
2585 | } | |
2586 | } | |
2587 | ||
2fcdb2c9 JP |
2588 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
2589 | ||
3d249d4c JP |
2590 | team_put: |
2591 | team_nl_team_put(team); | |
7d259505 JP |
2592 | rtnl_unlock: |
2593 | rtnl_unlock(); | |
3d249d4c JP |
2594 | return err; |
2595 | } | |
2596 | ||
d90f889e JP |
2597 | static int team_nl_fill_one_port_get(struct sk_buff *skb, |
2598 | struct team_port *port) | |
2599 | { | |
2600 | struct nlattr *port_item; | |
2601 | ||
2602 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); | |
2603 | if (!port_item) | |
2604 | goto nest_cancel; | |
2605 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) | |
2606 | goto nest_cancel; | |
2607 | if (port->changed) { | |
2608 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) | |
2609 | goto nest_cancel; | |
2610 | port->changed = false; | |
2611 | } | |
2612 | if ((port->removed && | |
2613 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || | |
2614 | (port->state.linkup && | |
2615 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || | |
2616 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || | |
2617 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) | |
2618 | goto nest_cancel; | |
2619 | nla_nest_end(skb, port_item); | |
2620 | return 0; | |
2621 | ||
2622 | nest_cancel: | |
2623 | nla_nest_cancel(skb, port_item); | |
2624 | return -EMSGSIZE; | |
2625 | } | |
2626 | ||
2627 | static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, | |
2628 | int flags, team_nl_send_func_t *send_func, | |
2629 | struct team_port *one_port) | |
3d249d4c JP |
2630 | { |
2631 | struct nlattr *port_list; | |
d90f889e | 2632 | struct nlmsghdr *nlh; |
3d249d4c JP |
2633 | void *hdr; |
2634 | struct team_port *port; | |
d90f889e JP |
2635 | int err; |
2636 | struct sk_buff *skb = NULL; | |
2637 | bool incomplete; | |
2638 | int i; | |
3d249d4c | 2639 | |
3f3e7ce4 JP |
2640 | port = list_first_entry_or_null(&team->port_list, |
2641 | struct team_port, list); | |
d90f889e JP |
2642 | |
2643 | start_again: | |
2644 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2645 | if (err) | |
2646 | return err; | |
2647 | ||
2648 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, | |
3d249d4c | 2649 | TEAM_CMD_PORT_LIST_GET); |
a326e6dd WY |
2650 | if (!hdr) |
2651 | return -EMSGSIZE; | |
3d249d4c | 2652 | |
86ebb02d DM |
2653 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2654 | goto nla_put_failure; | |
3d249d4c JP |
2655 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
2656 | if (!port_list) | |
3221c646 | 2657 | goto nla_put_failure; |
3d249d4c | 2658 | |
d90f889e JP |
2659 | i = 0; |
2660 | incomplete = false; | |
3d249d4c | 2661 | |
d90f889e JP |
2662 | /* If one port is selected, called wants to send port list containing |
2663 | * only this port. Otherwise go through all listed ports and send all | |
2664 | */ | |
2665 | if (one_port) { | |
2666 | err = team_nl_fill_one_port_get(skb, one_port); | |
2667 | if (err) | |
2668 | goto errout; | |
3f3e7ce4 JP |
2669 | } else if (port) { |
2670 | list_for_each_entry_from(port, &team->port_list, list) { | |
d90f889e JP |
2671 | err = team_nl_fill_one_port_get(skb, port); |
2672 | if (err) { | |
2673 | if (err == -EMSGSIZE) { | |
2674 | if (!i) | |
2675 | goto errout; | |
2676 | incomplete = true; | |
2677 | break; | |
2678 | } | |
2679 | goto errout; | |
2680 | } | |
2681 | i++; | |
b82b9183 | 2682 | } |
3d249d4c JP |
2683 | } |
2684 | ||
2685 | nla_nest_end(skb, port_list); | |
d90f889e JP |
2686 | genlmsg_end(skb, hdr); |
2687 | if (incomplete) | |
2688 | goto start_again; | |
2689 | ||
2690 | send_done: | |
2691 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2692 | if (!nlh) { | |
2693 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2694 | if (err) | |
2695 | goto errout; | |
2696 | goto send_done; | |
2697 | } | |
2698 | ||
2699 | return send_func(skb, team, portid); | |
3d249d4c JP |
2700 | |
2701 | nla_put_failure: | |
d90f889e JP |
2702 | err = -EMSGSIZE; |
2703 | errout: | |
3d249d4c | 2704 | genlmsg_cancel(skb, hdr); |
d90f889e JP |
2705 | nlmsg_free(skb); |
2706 | return err; | |
3d249d4c JP |
2707 | } |
2708 | ||
2709 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, | |
2710 | struct genl_info *info) | |
2711 | { | |
2712 | struct team *team; | |
2713 | int err; | |
2714 | ||
2715 | team = team_nl_team_get(info); | |
2716 | if (!team) | |
2717 | return -EINVAL; | |
2718 | ||
d90f889e JP |
2719 | err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, |
2720 | NLM_F_ACK, team_nl_send_unicast, NULL); | |
3d249d4c JP |
2721 | |
2722 | team_nl_team_put(team); | |
2723 | ||
2724 | return err; | |
2725 | } | |
2726 | ||
4534de83 | 2727 | static const struct genl_ops team_nl_ops[] = { |
3d249d4c JP |
2728 | { |
2729 | .cmd = TEAM_CMD_NOOP, | |
2730 | .doit = team_nl_cmd_noop, | |
2731 | .policy = team_nl_policy, | |
2732 | }, | |
2733 | { | |
2734 | .cmd = TEAM_CMD_OPTIONS_SET, | |
2735 | .doit = team_nl_cmd_options_set, | |
2736 | .policy = team_nl_policy, | |
2737 | .flags = GENL_ADMIN_PERM, | |
2738 | }, | |
2739 | { | |
2740 | .cmd = TEAM_CMD_OPTIONS_GET, | |
2741 | .doit = team_nl_cmd_options_get, | |
2742 | .policy = team_nl_policy, | |
2743 | .flags = GENL_ADMIN_PERM, | |
2744 | }, | |
2745 | { | |
2746 | .cmd = TEAM_CMD_PORT_LIST_GET, | |
2747 | .doit = team_nl_cmd_port_list_get, | |
2748 | .policy = team_nl_policy, | |
2749 | .flags = GENL_ADMIN_PERM, | |
2750 | }, | |
2751 | }; | |
2752 | ||
2a94fe48 JB |
2753 | static const struct genl_multicast_group team_nl_mcgrps[] = { |
2754 | { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, | |
3d249d4c JP |
2755 | }; |
2756 | ||
9b00cf2d | 2757 | static int team_nl_send_multicast(struct sk_buff *skb, |
15e47304 | 2758 | struct team *team, u32 portid) |
9b00cf2d | 2759 | { |
68eb5503 | 2760 | return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), |
2a94fe48 | 2761 | skb, 0, 0, GFP_KERNEL); |
9b00cf2d JP |
2762 | } |
2763 | ||
01048d9a JP |
2764 | static int team_nl_send_event_options_get(struct team *team, |
2765 | struct list_head *sel_opt_inst_list) | |
3d249d4c | 2766 | { |
9b00cf2d JP |
2767 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
2768 | sel_opt_inst_list); | |
3d249d4c JP |
2769 | } |
2770 | ||
d90f889e JP |
2771 | static int team_nl_send_event_port_get(struct team *team, |
2772 | struct team_port *port) | |
3d249d4c | 2773 | { |
d90f889e JP |
2774 | return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, |
2775 | port); | |
3d249d4c JP |
2776 | } |
2777 | ||
2778 | static int team_nl_init(void) | |
2779 | { | |
2a94fe48 JB |
2780 | return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops, |
2781 | team_nl_mcgrps); | |
3d249d4c JP |
2782 | } |
2783 | ||
2784 | static void team_nl_fini(void) | |
2785 | { | |
2786 | genl_unregister_family(&team_nl_family); | |
2787 | } | |
2788 | ||
2789 | ||
2790 | /****************** | |
2791 | * Change checkers | |
2792 | ******************/ | |
2793 | ||
b82b9183 | 2794 | static void __team_options_change_check(struct team *team) |
3d249d4c JP |
2795 | { |
2796 | int err; | |
01048d9a JP |
2797 | struct team_option_inst *opt_inst; |
2798 | LIST_HEAD(sel_opt_inst_list); | |
3d249d4c | 2799 | |
01048d9a JP |
2800 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
2801 | if (opt_inst->changed) | |
2802 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
2803 | } | |
2804 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); | |
0c7517e9 | 2805 | if (err && err != -ESRCH) |
9b00cf2d JP |
2806 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
2807 | err); | |
3d249d4c JP |
2808 | } |
2809 | ||
2810 | /* rtnl lock is held */ | |
10f3f51d JP |
2811 | |
2812 | static void __team_port_change_send(struct team_port *port, bool linkup) | |
3d249d4c JP |
2813 | { |
2814 | int err; | |
2815 | ||
b82b9183 | 2816 | port->changed = true; |
71472ec1 JP |
2817 | port->state.linkup = linkup; |
2818 | team_refresh_port_linkup(port); | |
3d249d4c | 2819 | if (linkup) { |
0ab6b544 | 2820 | struct ethtool_link_ksettings ecmd; |
3d249d4c | 2821 | |
0ab6b544 | 2822 | err = __ethtool_get_link_ksettings(port->dev, &ecmd); |
3d249d4c | 2823 | if (!err) { |
0ab6b544 DD |
2824 | port->state.speed = ecmd.base.speed; |
2825 | port->state.duplex = ecmd.base.duplex; | |
3d249d4c JP |
2826 | goto send_event; |
2827 | } | |
2828 | } | |
71472ec1 JP |
2829 | port->state.speed = 0; |
2830 | port->state.duplex = 0; | |
3d249d4c JP |
2831 | |
2832 | send_event: | |
d90f889e | 2833 | err = team_nl_send_event_port_get(port->team, port); |
0c7517e9 JP |
2834 | if (err && err != -ESRCH) |
2835 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", | |
2836 | port->dev->name, err); | |
3d249d4c JP |
2837 | |
2838 | } | |
2839 | ||
06a7fc42 FL |
2840 | static void __team_carrier_check(struct team *team) |
2841 | { | |
2842 | struct team_port *port; | |
2843 | bool team_linkup; | |
2844 | ||
e185483e FL |
2845 | if (team->user_carrier_enabled) |
2846 | return; | |
2847 | ||
06a7fc42 FL |
2848 | team_linkup = false; |
2849 | list_for_each_entry(port, &team->port_list, list) { | |
2850 | if (port->linkup) { | |
2851 | team_linkup = true; | |
2852 | break; | |
2853 | } | |
2854 | } | |
2855 | ||
2856 | if (team_linkup) | |
2857 | netif_carrier_on(team->dev); | |
2858 | else | |
2859 | netif_carrier_off(team->dev); | |
2860 | } | |
2861 | ||
10f3f51d JP |
2862 | static void __team_port_change_check(struct team_port *port, bool linkup) |
2863 | { | |
2864 | if (port->state.linkup != linkup) | |
2865 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2866 | __team_carrier_check(port->team); |
10f3f51d JP |
2867 | } |
2868 | ||
2869 | static void __team_port_change_port_added(struct team_port *port, bool linkup) | |
2870 | { | |
2871 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2872 | __team_carrier_check(port->team); |
10f3f51d JP |
2873 | } |
2874 | ||
2875 | static void __team_port_change_port_removed(struct team_port *port) | |
2876 | { | |
2877 | port->removed = true; | |
2878 | __team_port_change_send(port, false); | |
06a7fc42 | 2879 | __team_carrier_check(port->team); |
10f3f51d JP |
2880 | } |
2881 | ||
3d249d4c JP |
2882 | static void team_port_change_check(struct team_port *port, bool linkup) |
2883 | { | |
2884 | struct team *team = port->team; | |
2885 | ||
61dc3461 | 2886 | mutex_lock(&team->lock); |
3d249d4c | 2887 | __team_port_change_check(port, linkup); |
61dc3461 | 2888 | mutex_unlock(&team->lock); |
3d249d4c JP |
2889 | } |
2890 | ||
0f1aad2b | 2891 | |
3d249d4c JP |
2892 | /************************************ |
2893 | * Net device notifier event handler | |
2894 | ************************************/ | |
2895 | ||
2896 | static int team_device_event(struct notifier_block *unused, | |
2897 | unsigned long event, void *ptr) | |
2898 | { | |
351638e7 | 2899 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
3d249d4c JP |
2900 | struct team_port *port; |
2901 | ||
2902 | port = team_port_get_rtnl(dev); | |
2903 | if (!port) | |
2904 | return NOTIFY_DONE; | |
2905 | ||
2906 | switch (event) { | |
2907 | case NETDEV_UP: | |
2908 | if (netif_carrier_ok(dev)) | |
2909 | team_port_change_check(port, true); | |
ed2da03c | 2910 | break; |
3d249d4c JP |
2911 | case NETDEV_DOWN: |
2912 | team_port_change_check(port, false); | |
ed2da03c | 2913 | break; |
3d249d4c JP |
2914 | case NETDEV_CHANGE: |
2915 | if (netif_running(port->dev)) | |
2916 | team_port_change_check(port, | |
2917 | !!netif_carrier_ok(port->dev)); | |
2918 | break; | |
2919 | case NETDEV_UNREGISTER: | |
2920 | team_del_slave(port->team->dev, dev); | |
2921 | break; | |
2922 | case NETDEV_FEAT_CHANGE: | |
2923 | team_compute_features(port->team); | |
2924 | break; | |
b01f236c | 2925 | case NETDEV_PRECHANGEMTU: |
3d249d4c | 2926 | /* Forbid to change mtu of underlaying device */ |
9d0d68fa JP |
2927 | if (!port->team->port_mtu_change_allowed) |
2928 | return NOTIFY_BAD; | |
2929 | break; | |
3d249d4c JP |
2930 | case NETDEV_PRE_TYPE_CHANGE: |
2931 | /* Forbid to change type of underlaying device */ | |
2932 | return NOTIFY_BAD; | |
4aa5dee4 JP |
2933 | case NETDEV_RESEND_IGMP: |
2934 | /* Propagate to master device */ | |
2935 | call_netdevice_notifiers(event, port->team->dev); | |
2936 | break; | |
3d249d4c JP |
2937 | } |
2938 | return NOTIFY_DONE; | |
2939 | } | |
2940 | ||
2941 | static struct notifier_block team_notifier_block __read_mostly = { | |
2942 | .notifier_call = team_device_event, | |
2943 | }; | |
2944 | ||
2945 | ||
2946 | /*********************** | |
2947 | * Module init and exit | |
2948 | ***********************/ | |
2949 | ||
2950 | static int __init team_module_init(void) | |
2951 | { | |
2952 | int err; | |
2953 | ||
2954 | register_netdevice_notifier(&team_notifier_block); | |
2955 | ||
2956 | err = rtnl_link_register(&team_link_ops); | |
2957 | if (err) | |
2958 | goto err_rtnl_reg; | |
2959 | ||
2960 | err = team_nl_init(); | |
2961 | if (err) | |
2962 | goto err_nl_init; | |
2963 | ||
2964 | return 0; | |
2965 | ||
2966 | err_nl_init: | |
2967 | rtnl_link_unregister(&team_link_ops); | |
2968 | ||
2969 | err_rtnl_reg: | |
2970 | unregister_netdevice_notifier(&team_notifier_block); | |
2971 | ||
2972 | return err; | |
2973 | } | |
2974 | ||
2975 | static void __exit team_module_exit(void) | |
2976 | { | |
2977 | team_nl_fini(); | |
2978 | rtnl_link_unregister(&team_link_ops); | |
2979 | unregister_netdevice_notifier(&team_notifier_block); | |
2980 | } | |
2981 | ||
2982 | module_init(team_module_init); | |
2983 | module_exit(team_module_exit); | |
2984 | ||
2985 | MODULE_LICENSE("GPL v2"); | |
2986 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
2987 | MODULE_DESCRIPTION("Ethernet team device driver"); | |
2988 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |