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 | ||
f6988cb6 | 993 | static void ___team_compute_features(struct team *team) |
3d249d4c JP |
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; | |
f6988cb6 | 1024 | } |
dc905951 | 1025 | |
f6988cb6 IV |
1026 | static void __team_compute_features(struct team *team) |
1027 | { | |
1028 | ___team_compute_features(team); | |
3d249d4c JP |
1029 | netdev_change_features(team->dev); |
1030 | } | |
1031 | ||
1032 | static void team_compute_features(struct team *team) | |
1033 | { | |
61dc3461 | 1034 | mutex_lock(&team->lock); |
f6988cb6 | 1035 | ___team_compute_features(team); |
61dc3461 | 1036 | mutex_unlock(&team->lock); |
f6988cb6 | 1037 | netdev_change_features(team->dev); |
3d249d4c JP |
1038 | } |
1039 | ||
1040 | static int team_port_enter(struct team *team, struct team_port *port) | |
1041 | { | |
1042 | int err = 0; | |
1043 | ||
1044 | dev_hold(team->dev); | |
3d249d4c JP |
1045 | if (team->ops.port_enter) { |
1046 | err = team->ops.port_enter(team, port); | |
1047 | if (err) { | |
1048 | netdev_err(team->dev, "Device %s failed to enter team mode\n", | |
1049 | port->dev->name); | |
1050 | goto err_port_enter; | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | return 0; | |
1055 | ||
1056 | err_port_enter: | |
3d249d4c JP |
1057 | dev_put(team->dev); |
1058 | ||
1059 | return err; | |
1060 | } | |
1061 | ||
1062 | static void team_port_leave(struct team *team, struct team_port *port) | |
1063 | { | |
1064 | if (team->ops.port_leave) | |
1065 | team->ops.port_leave(team, port); | |
3d249d4c JP |
1066 | dev_put(team->dev); |
1067 | } | |
1068 | ||
bd2d0837 | 1069 | #ifdef CONFIG_NET_POLL_CONTROLLER |
a8779ec1 | 1070 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
bd2d0837 JP |
1071 | { |
1072 | struct netpoll *np; | |
1073 | int err; | |
1074 | ||
0fb52a27 | 1075 | if (!team->dev->npinfo) |
1076 | return 0; | |
1077 | ||
a8779ec1 | 1078 | np = kzalloc(sizeof(*np), GFP_KERNEL); |
bd2d0837 JP |
1079 | if (!np) |
1080 | return -ENOMEM; | |
1081 | ||
a8779ec1 | 1082 | err = __netpoll_setup(np, port->dev); |
bd2d0837 JP |
1083 | if (err) { |
1084 | kfree(np); | |
1085 | return err; | |
1086 | } | |
1087 | port->np = np; | |
1088 | return err; | |
1089 | } | |
1090 | ||
1091 | static void team_port_disable_netpoll(struct team_port *port) | |
1092 | { | |
1093 | struct netpoll *np = port->np; | |
1094 | ||
1095 | if (!np) | |
1096 | return; | |
1097 | port->np = NULL; | |
1098 | ||
1099 | /* Wait for transmitting packets to finish before freeing. */ | |
1100 | synchronize_rcu_bh(); | |
1101 | __netpoll_cleanup(np); | |
1102 | kfree(np); | |
1103 | } | |
bd2d0837 | 1104 | #else |
a8779ec1 | 1105 | static int team_port_enable_netpoll(struct team *team, struct team_port *port) |
bd2d0837 JP |
1106 | { |
1107 | return 0; | |
1108 | } | |
1109 | static void team_port_disable_netpoll(struct team_port *port) | |
1110 | { | |
1111 | } | |
bd2d0837 JP |
1112 | #endif |
1113 | ||
8fd72856 | 1114 | static int team_upper_dev_link(struct team *team, struct team_port *port) |
d7d3c051 | 1115 | { |
8fd72856 | 1116 | struct netdev_lag_upper_info lag_upper_info; |
d7d3c051 JP |
1117 | int err; |
1118 | ||
8fd72856 JP |
1119 | lag_upper_info.tx_type = team->mode->lag_tx_type; |
1120 | err = netdev_master_upper_dev_link(port->dev, team->dev, NULL, | |
1121 | &lag_upper_info); | |
d7d3c051 JP |
1122 | if (err) |
1123 | return err; | |
8fd72856 | 1124 | port->dev->priv_flags |= IFF_TEAM_PORT; |
d7d3c051 JP |
1125 | return 0; |
1126 | } | |
1127 | ||
8fd72856 | 1128 | static void team_upper_dev_unlink(struct team *team, struct team_port *port) |
d7d3c051 | 1129 | { |
8fd72856 JP |
1130 | netdev_upper_dev_unlink(port->dev, team->dev); |
1131 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
d7d3c051 JP |
1132 | } |
1133 | ||
10f3f51d | 1134 | static void __team_port_change_port_added(struct team_port *port, bool linkup); |
1d76efe1 JP |
1135 | static int team_dev_type_check_change(struct net_device *dev, |
1136 | struct net_device *port_dev); | |
3d249d4c JP |
1137 | |
1138 | static int team_port_add(struct team *team, struct net_device *port_dev) | |
1139 | { | |
1140 | struct net_device *dev = team->dev; | |
1141 | struct team_port *port; | |
1142 | char *portname = port_dev->name; | |
1143 | int err; | |
1144 | ||
1d76efe1 JP |
1145 | if (port_dev->flags & IFF_LOOPBACK) { |
1146 | netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", | |
3d249d4c JP |
1147 | portname); |
1148 | return -EINVAL; | |
1149 | } | |
1150 | ||
1151 | if (team_port_exists(port_dev)) { | |
1152 | netdev_err(dev, "Device %s is already a port " | |
1153 | "of a team device\n", portname); | |
1154 | return -EBUSY; | |
1155 | } | |
1156 | ||
2c33bb37 JP |
1157 | if (port_dev->features & NETIF_F_VLAN_CHALLENGED && |
1158 | vlan_uses_dev(dev)) { | |
1159 | netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", | |
1160 | portname); | |
1161 | return -EPERM; | |
1162 | } | |
1163 | ||
1d76efe1 JP |
1164 | err = team_dev_type_check_change(dev, port_dev); |
1165 | if (err) | |
1166 | return err; | |
1167 | ||
3d249d4c JP |
1168 | if (port_dev->flags & IFF_UP) { |
1169 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", | |
1170 | portname); | |
1171 | return -EBUSY; | |
1172 | } | |
1173 | ||
5149ee58 JP |
1174 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
1175 | GFP_KERNEL); | |
3d249d4c JP |
1176 | if (!port) |
1177 | return -ENOMEM; | |
1178 | ||
1179 | port->dev = port_dev; | |
1180 | port->team = team; | |
8ff5105a | 1181 | INIT_LIST_HEAD(&port->qom_list); |
3d249d4c JP |
1182 | |
1183 | port->orig.mtu = port_dev->mtu; | |
1184 | err = dev_set_mtu(port_dev, dev->mtu); | |
1185 | if (err) { | |
1186 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); | |
1187 | goto err_set_mtu; | |
1188 | } | |
1189 | ||
1d76efe1 | 1190 | memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); |
3d249d4c JP |
1191 | |
1192 | err = team_port_enter(team, port); | |
1193 | if (err) { | |
1194 | netdev_err(dev, "Device %s failed to enter team mode\n", | |
1195 | portname); | |
1196 | goto err_port_enter; | |
1197 | } | |
1198 | ||
1199 | err = dev_open(port_dev); | |
1200 | if (err) { | |
1201 | netdev_dbg(dev, "Device %s opening failed\n", | |
1202 | portname); | |
1203 | goto err_dev_open; | |
1204 | } | |
1205 | ||
cb41c997 XL |
1206 | dev_uc_sync_multiple(port_dev, dev); |
1207 | dev_mc_sync_multiple(port_dev, dev); | |
1208 | ||
57459185 JP |
1209 | err = vlan_vids_add_by_dev(port_dev, dev); |
1210 | if (err) { | |
1211 | netdev_err(dev, "Failed to add vlan ids to device %s\n", | |
1212 | portname); | |
1213 | goto err_vids_add; | |
1214 | } | |
1215 | ||
a8779ec1 | 1216 | err = team_port_enable_netpoll(team, port); |
0fb52a27 | 1217 | if (err) { |
1218 | netdev_err(dev, "Failed to enable netpoll on device %s\n", | |
1219 | portname); | |
1220 | goto err_enable_netpoll; | |
bd2d0837 JP |
1221 | } |
1222 | ||
fbe168ba MK |
1223 | if (!(dev->features & NETIF_F_LRO)) |
1224 | dev_disable_lro(port_dev); | |
1225 | ||
3d249d4c JP |
1226 | err = netdev_rx_handler_register(port_dev, team_handle_frame, |
1227 | port); | |
1228 | if (err) { | |
1229 | netdev_err(dev, "Device %s failed to register rx_handler\n", | |
1230 | portname); | |
1231 | goto err_handler_register; | |
1232 | } | |
1233 | ||
8fd72856 | 1234 | err = team_upper_dev_link(team, port); |
d7d3c051 JP |
1235 | if (err) { |
1236 | netdev_err(dev, "Device %s failed to set upper link\n", | |
1237 | portname); | |
1238 | goto err_set_upper_link; | |
1239 | } | |
1240 | ||
35b384bd | 1241 | err = __team_option_inst_add_port(team, port); |
80f7c668 JP |
1242 | if (err) { |
1243 | netdev_err(dev, "Device %s failed to add per-port options\n", | |
1244 | portname); | |
1245 | goto err_option_port_add; | |
1246 | } | |
1247 | ||
19a0b58e | 1248 | port->index = -1; |
19a0b58e | 1249 | list_add_tail_rcu(&port->list, &team->port_list); |
72df935d | 1250 | team_port_enable(team, port); |
3d249d4c | 1251 | __team_compute_features(team); |
10f3f51d | 1252 | __team_port_change_port_added(port, !!netif_carrier_ok(port_dev)); |
35b384bd | 1253 | __team_options_change_check(team); |
3d249d4c JP |
1254 | |
1255 | netdev_info(dev, "Port device %s added\n", portname); | |
1256 | ||
1257 | return 0; | |
1258 | ||
80f7c668 | 1259 | err_option_port_add: |
8fd72856 | 1260 | team_upper_dev_unlink(team, port); |
d7d3c051 JP |
1261 | |
1262 | err_set_upper_link: | |
80f7c668 JP |
1263 | netdev_rx_handler_unregister(port_dev); |
1264 | ||
3d249d4c | 1265 | err_handler_register: |
bd2d0837 JP |
1266 | team_port_disable_netpoll(port); |
1267 | ||
1268 | err_enable_netpoll: | |
57459185 JP |
1269 | vlan_vids_del_by_dev(port_dev, dev); |
1270 | ||
1271 | err_vids_add: | |
cb41c997 XL |
1272 | dev_uc_unsync(port_dev, dev); |
1273 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1274 | dev_close(port_dev); |
1275 | ||
1276 | err_dev_open: | |
1277 | team_port_leave(team, port); | |
1d76efe1 | 1278 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1279 | |
1280 | err_port_enter: | |
1281 | dev_set_mtu(port_dev, port->orig.mtu); | |
1282 | ||
1283 | err_set_mtu: | |
1284 | kfree(port); | |
1285 | ||
1286 | return err; | |
1287 | } | |
1288 | ||
10f3f51d JP |
1289 | static void __team_port_change_port_removed(struct team_port *port); |
1290 | ||
3d249d4c JP |
1291 | static int team_port_del(struct team *team, struct net_device *port_dev) |
1292 | { | |
1293 | struct net_device *dev = team->dev; | |
1294 | struct team_port *port; | |
1295 | char *portname = port_dev->name; | |
1296 | ||
1297 | port = team_port_get_rtnl(port_dev); | |
1298 | if (!port || !team_port_find(team, port)) { | |
1299 | netdev_err(dev, "Device %s does not act as a port of this team\n", | |
1300 | portname); | |
1301 | return -ENOENT; | |
1302 | } | |
1303 | ||
19a0b58e JP |
1304 | team_port_disable(team, port); |
1305 | list_del_rcu(&port->list); | |
8fd72856 | 1306 | team_upper_dev_unlink(team, port); |
3d249d4c | 1307 | netdev_rx_handler_unregister(port_dev); |
bd2d0837 | 1308 | team_port_disable_netpoll(port); |
57459185 | 1309 | vlan_vids_del_by_dev(port_dev, dev); |
ba81276b VY |
1310 | dev_uc_unsync(port_dev, dev); |
1311 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1312 | dev_close(port_dev); |
1313 | team_port_leave(team, port); | |
c3969d80 JP |
1314 | |
1315 | __team_option_inst_mark_removed_port(team, port); | |
1316 | __team_options_change_check(team); | |
1317 | __team_option_inst_del_port(team, port); | |
1318 | __team_port_change_port_removed(port); | |
1319 | ||
1d76efe1 | 1320 | team_port_set_orig_dev_addr(port); |
3d249d4c | 1321 | dev_set_mtu(port_dev, port->orig.mtu); |
d80b35be | 1322 | kfree_rcu(port, rcu); |
3d249d4c JP |
1323 | netdev_info(dev, "Port device %s removed\n", portname); |
1324 | __team_compute_features(team); | |
1325 | ||
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | ||
1330 | /***************** | |
1331 | * Net device ops | |
1332 | *****************/ | |
1333 | ||
80f7c668 | 1334 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1335 | { |
d299cd51 | 1336 | ctx->data.str_val = team->mode->kind; |
3d249d4c JP |
1337 | return 0; |
1338 | } | |
1339 | ||
80f7c668 | 1340 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1341 | { |
80f7c668 | 1342 | return team_change_mode(team, ctx->data.str_val); |
3d249d4c JP |
1343 | } |
1344 | ||
fc423ff0 JP |
1345 | static int team_notify_peers_count_get(struct team *team, |
1346 | struct team_gsetter_ctx *ctx) | |
1347 | { | |
1348 | ctx->data.u32_val = team->notify_peers.count; | |
1349 | return 0; | |
1350 | } | |
1351 | ||
1352 | static int team_notify_peers_count_set(struct team *team, | |
1353 | struct team_gsetter_ctx *ctx) | |
1354 | { | |
1355 | team->notify_peers.count = ctx->data.u32_val; | |
1356 | return 0; | |
1357 | } | |
1358 | ||
1359 | static int team_notify_peers_interval_get(struct team *team, | |
1360 | struct team_gsetter_ctx *ctx) | |
1361 | { | |
1362 | ctx->data.u32_val = team->notify_peers.interval; | |
1363 | return 0; | |
1364 | } | |
1365 | ||
1366 | static int team_notify_peers_interval_set(struct team *team, | |
1367 | struct team_gsetter_ctx *ctx) | |
1368 | { | |
1369 | team->notify_peers.interval = ctx->data.u32_val; | |
1370 | return 0; | |
1371 | } | |
1372 | ||
492b200e JP |
1373 | static int team_mcast_rejoin_count_get(struct team *team, |
1374 | struct team_gsetter_ctx *ctx) | |
1375 | { | |
1376 | ctx->data.u32_val = team->mcast_rejoin.count; | |
1377 | return 0; | |
1378 | } | |
1379 | ||
1380 | static int team_mcast_rejoin_count_set(struct team *team, | |
1381 | struct team_gsetter_ctx *ctx) | |
1382 | { | |
1383 | team->mcast_rejoin.count = ctx->data.u32_val; | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | static int team_mcast_rejoin_interval_get(struct team *team, | |
1388 | struct team_gsetter_ctx *ctx) | |
1389 | { | |
1390 | ctx->data.u32_val = team->mcast_rejoin.interval; | |
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | static int team_mcast_rejoin_interval_set(struct team *team, | |
1395 | struct team_gsetter_ctx *ctx) | |
1396 | { | |
1397 | team->mcast_rejoin.interval = ctx->data.u32_val; | |
1398 | return 0; | |
1399 | } | |
1400 | ||
acd69962 JP |
1401 | static int team_port_en_option_get(struct team *team, |
1402 | struct team_gsetter_ctx *ctx) | |
1403 | { | |
85d59a87 JP |
1404 | struct team_port *port = ctx->info->port; |
1405 | ||
1406 | ctx->data.bool_val = team_port_enabled(port); | |
acd69962 JP |
1407 | return 0; |
1408 | } | |
1409 | ||
1410 | static int team_port_en_option_set(struct team *team, | |
1411 | struct team_gsetter_ctx *ctx) | |
1412 | { | |
85d59a87 JP |
1413 | struct team_port *port = ctx->info->port; |
1414 | ||
acd69962 | 1415 | if (ctx->data.bool_val) |
85d59a87 | 1416 | team_port_enable(team, port); |
acd69962 | 1417 | else |
85d59a87 | 1418 | team_port_disable(team, port); |
acd69962 JP |
1419 | return 0; |
1420 | } | |
1421 | ||
71472ec1 JP |
1422 | static int team_user_linkup_option_get(struct team *team, |
1423 | struct team_gsetter_ctx *ctx) | |
1424 | { | |
85d59a87 JP |
1425 | struct team_port *port = ctx->info->port; |
1426 | ||
1427 | ctx->data.bool_val = port->user.linkup; | |
71472ec1 JP |
1428 | return 0; |
1429 | } | |
1430 | ||
f5e0d343 JP |
1431 | static void __team_carrier_check(struct team *team); |
1432 | ||
71472ec1 JP |
1433 | static int team_user_linkup_option_set(struct team *team, |
1434 | struct team_gsetter_ctx *ctx) | |
1435 | { | |
85d59a87 JP |
1436 | struct team_port *port = ctx->info->port; |
1437 | ||
1438 | port->user.linkup = ctx->data.bool_val; | |
1439 | team_refresh_port_linkup(port); | |
f5e0d343 | 1440 | __team_carrier_check(port->team); |
71472ec1 JP |
1441 | return 0; |
1442 | } | |
1443 | ||
1444 | static int team_user_linkup_en_option_get(struct team *team, | |
1445 | struct team_gsetter_ctx *ctx) | |
1446 | { | |
85d59a87 | 1447 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1448 | |
1449 | ctx->data.bool_val = port->user.linkup_enabled; | |
1450 | return 0; | |
1451 | } | |
1452 | ||
1453 | static int team_user_linkup_en_option_set(struct team *team, | |
1454 | struct team_gsetter_ctx *ctx) | |
1455 | { | |
85d59a87 | 1456 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1457 | |
1458 | port->user.linkup_enabled = ctx->data.bool_val; | |
85d59a87 | 1459 | team_refresh_port_linkup(port); |
f5e0d343 | 1460 | __team_carrier_check(port->team); |
71472ec1 JP |
1461 | return 0; |
1462 | } | |
1463 | ||
a86fc6b7 JP |
1464 | static int team_priority_option_get(struct team *team, |
1465 | struct team_gsetter_ctx *ctx) | |
1466 | { | |
1467 | struct team_port *port = ctx->info->port; | |
1468 | ||
1469 | ctx->data.s32_val = port->priority; | |
1470 | return 0; | |
1471 | } | |
1472 | ||
1473 | static int team_priority_option_set(struct team *team, | |
1474 | struct team_gsetter_ctx *ctx) | |
1475 | { | |
1476 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1477 | s32 priority = ctx->data.s32_val; |
a86fc6b7 | 1478 | |
6c31ff36 JP |
1479 | if (port->priority == priority) |
1480 | return 0; | |
1481 | port->priority = priority; | |
1482 | team_queue_override_port_prio_changed(team, port); | |
8ff5105a JP |
1483 | return 0; |
1484 | } | |
1485 | ||
1486 | static int team_queue_id_option_get(struct team *team, | |
1487 | struct team_gsetter_ctx *ctx) | |
1488 | { | |
1489 | struct team_port *port = ctx->info->port; | |
1490 | ||
1491 | ctx->data.u32_val = port->queue_id; | |
a86fc6b7 JP |
1492 | return 0; |
1493 | } | |
1494 | ||
8ff5105a JP |
1495 | static int team_queue_id_option_set(struct team *team, |
1496 | struct team_gsetter_ctx *ctx) | |
1497 | { | |
1498 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1499 | u16 new_queue_id = ctx->data.u32_val; |
8ff5105a | 1500 | |
6c31ff36 | 1501 | if (port->queue_id == new_queue_id) |
8ff5105a | 1502 | return 0; |
6c31ff36 | 1503 | if (new_queue_id >= team->dev->real_num_tx_queues) |
8ff5105a | 1504 | return -EINVAL; |
6c31ff36 | 1505 | team_queue_override_port_change_queue_id(team, port, new_queue_id); |
8ff5105a JP |
1506 | return 0; |
1507 | } | |
1508 | ||
358b8382 | 1509 | static const struct team_option team_options[] = { |
3d249d4c JP |
1510 | { |
1511 | .name = "mode", | |
1512 | .type = TEAM_OPTION_TYPE_STRING, | |
1513 | .getter = team_mode_option_get, | |
1514 | .setter = team_mode_option_set, | |
1515 | }, | |
fc423ff0 JP |
1516 | { |
1517 | .name = "notify_peers_count", | |
1518 | .type = TEAM_OPTION_TYPE_U32, | |
1519 | .getter = team_notify_peers_count_get, | |
1520 | .setter = team_notify_peers_count_set, | |
1521 | }, | |
1522 | { | |
1523 | .name = "notify_peers_interval", | |
1524 | .type = TEAM_OPTION_TYPE_U32, | |
1525 | .getter = team_notify_peers_interval_get, | |
1526 | .setter = team_notify_peers_interval_set, | |
1527 | }, | |
492b200e JP |
1528 | { |
1529 | .name = "mcast_rejoin_count", | |
1530 | .type = TEAM_OPTION_TYPE_U32, | |
1531 | .getter = team_mcast_rejoin_count_get, | |
1532 | .setter = team_mcast_rejoin_count_set, | |
1533 | }, | |
1534 | { | |
1535 | .name = "mcast_rejoin_interval", | |
1536 | .type = TEAM_OPTION_TYPE_U32, | |
1537 | .getter = team_mcast_rejoin_interval_get, | |
1538 | .setter = team_mcast_rejoin_interval_set, | |
1539 | }, | |
acd69962 JP |
1540 | { |
1541 | .name = "enabled", | |
1542 | .type = TEAM_OPTION_TYPE_BOOL, | |
1543 | .per_port = true, | |
1544 | .getter = team_port_en_option_get, | |
1545 | .setter = team_port_en_option_set, | |
1546 | }, | |
71472ec1 JP |
1547 | { |
1548 | .name = "user_linkup", | |
1549 | .type = TEAM_OPTION_TYPE_BOOL, | |
1550 | .per_port = true, | |
1551 | .getter = team_user_linkup_option_get, | |
1552 | .setter = team_user_linkup_option_set, | |
1553 | }, | |
1554 | { | |
1555 | .name = "user_linkup_enabled", | |
1556 | .type = TEAM_OPTION_TYPE_BOOL, | |
1557 | .per_port = true, | |
1558 | .getter = team_user_linkup_en_option_get, | |
1559 | .setter = team_user_linkup_en_option_set, | |
1560 | }, | |
a86fc6b7 JP |
1561 | { |
1562 | .name = "priority", | |
1563 | .type = TEAM_OPTION_TYPE_S32, | |
1564 | .per_port = true, | |
1565 | .getter = team_priority_option_get, | |
1566 | .setter = team_priority_option_set, | |
1567 | }, | |
8ff5105a JP |
1568 | { |
1569 | .name = "queue_id", | |
1570 | .type = TEAM_OPTION_TYPE_U32, | |
1571 | .per_port = true, | |
1572 | .getter = team_queue_id_option_get, | |
1573 | .setter = team_queue_id_option_set, | |
1574 | }, | |
3d249d4c JP |
1575 | }; |
1576 | ||
6c85f2bd JP |
1577 | static struct lock_class_key team_netdev_xmit_lock_key; |
1578 | static struct lock_class_key team_netdev_addr_lock_key; | |
b3c581d5 | 1579 | static struct lock_class_key team_tx_busylock_key; |
6c85f2bd JP |
1580 | |
1581 | static void team_set_lockdep_class_one(struct net_device *dev, | |
1582 | struct netdev_queue *txq, | |
1583 | void *unused) | |
1584 | { | |
1585 | lockdep_set_class(&txq->_xmit_lock, &team_netdev_xmit_lock_key); | |
1586 | } | |
1587 | ||
1588 | static void team_set_lockdep_class(struct net_device *dev) | |
1589 | { | |
1590 | lockdep_set_class(&dev->addr_list_lock, &team_netdev_addr_lock_key); | |
1591 | netdev_for_each_tx_queue(dev, team_set_lockdep_class_one, NULL); | |
b3c581d5 | 1592 | dev->qdisc_tx_busylock = &team_tx_busylock_key; |
6c85f2bd JP |
1593 | } |
1594 | ||
3d249d4c JP |
1595 | static int team_init(struct net_device *dev) |
1596 | { | |
1597 | struct team *team = netdev_priv(dev); | |
1598 | int i; | |
358b8382 | 1599 | int err; |
3d249d4c JP |
1600 | |
1601 | team->dev = dev; | |
61dc3461 | 1602 | mutex_init(&team->lock); |
d299cd51 | 1603 | team_set_no_mode(team); |
3d249d4c | 1604 | |
1c213bd2 | 1605 | team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); |
3d249d4c JP |
1606 | if (!team->pcpu_stats) |
1607 | return -ENOMEM; | |
1608 | ||
1609 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) | |
19a0b58e | 1610 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
3d249d4c | 1611 | INIT_LIST_HEAD(&team->port_list); |
8ff5105a JP |
1612 | err = team_queue_override_init(team); |
1613 | if (err) | |
1614 | goto err_team_queue_override_init; | |
3d249d4c JP |
1615 | |
1616 | team_adjust_ops(team); | |
1617 | ||
1618 | INIT_LIST_HEAD(&team->option_list); | |
80f7c668 | 1619 | INIT_LIST_HEAD(&team->option_inst_list); |
fc423ff0 JP |
1620 | |
1621 | team_notify_peers_init(team); | |
492b200e | 1622 | team_mcast_rejoin_init(team); |
fc423ff0 | 1623 | |
358b8382 JP |
1624 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
1625 | if (err) | |
1626 | goto err_options_register; | |
3d249d4c JP |
1627 | netif_carrier_off(dev); |
1628 | ||
6c85f2bd JP |
1629 | team_set_lockdep_class(dev); |
1630 | ||
3d249d4c | 1631 | return 0; |
358b8382 JP |
1632 | |
1633 | err_options_register: | |
492b200e | 1634 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1635 | team_notify_peers_fini(team); |
8ff5105a JP |
1636 | team_queue_override_fini(team); |
1637 | err_team_queue_override_init: | |
358b8382 JP |
1638 | free_percpu(team->pcpu_stats); |
1639 | ||
1640 | return err; | |
3d249d4c JP |
1641 | } |
1642 | ||
1643 | static void team_uninit(struct net_device *dev) | |
1644 | { | |
1645 | struct team *team = netdev_priv(dev); | |
1646 | struct team_port *port; | |
1647 | struct team_port *tmp; | |
1648 | ||
61dc3461 | 1649 | mutex_lock(&team->lock); |
3d249d4c JP |
1650 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
1651 | team_port_del(team, port->dev); | |
1652 | ||
1653 | __team_change_mode(team, NULL); /* cleanup */ | |
1654 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); | |
492b200e | 1655 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1656 | team_notify_peers_fini(team); |
8ff5105a | 1657 | team_queue_override_fini(team); |
61dc3461 | 1658 | mutex_unlock(&team->lock); |
3d249d4c JP |
1659 | } |
1660 | ||
1661 | static void team_destructor(struct net_device *dev) | |
1662 | { | |
1663 | struct team *team = netdev_priv(dev); | |
1664 | ||
1665 | free_percpu(team->pcpu_stats); | |
1666 | free_netdev(dev); | |
1667 | } | |
1668 | ||
1669 | static int team_open(struct net_device *dev) | |
1670 | { | |
3d249d4c JP |
1671 | return 0; |
1672 | } | |
1673 | ||
1674 | static int team_close(struct net_device *dev) | |
1675 | { | |
3d249d4c JP |
1676 | return 0; |
1677 | } | |
1678 | ||
1679 | /* | |
1680 | * note: already called with rcu_read_lock | |
1681 | */ | |
1682 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) | |
1683 | { | |
1684 | struct team *team = netdev_priv(dev); | |
8ff5105a | 1685 | bool tx_success; |
3d249d4c JP |
1686 | unsigned int len = skb->len; |
1687 | ||
8ff5105a JP |
1688 | tx_success = team_queue_override_transmit(team, skb); |
1689 | if (!tx_success) | |
1690 | tx_success = team->ops.transmit(team, skb); | |
3d249d4c JP |
1691 | if (tx_success) { |
1692 | struct team_pcpu_stats *pcpu_stats; | |
1693 | ||
1694 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
1695 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1696 | pcpu_stats->tx_packets++; | |
1697 | pcpu_stats->tx_bytes += len; | |
1698 | u64_stats_update_end(&pcpu_stats->syncp); | |
1699 | } else { | |
1700 | this_cpu_inc(team->pcpu_stats->tx_dropped); | |
1701 | } | |
1702 | ||
1703 | return NETDEV_TX_OK; | |
1704 | } | |
1705 | ||
f663dd9a | 1706 | static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb, |
99932d4f | 1707 | void *accel_priv, select_queue_fallback_t fallback) |
6c85f2bd JP |
1708 | { |
1709 | /* | |
1710 | * This helper function exists to help dev_pick_tx get the correct | |
1711 | * destination queue. Using a helper function skips a call to | |
1712 | * skb_tx_hash and will put the skbs in the queue we expect on their | |
1713 | * way down to the team driver. | |
1714 | */ | |
1715 | u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; | |
1716 | ||
1717 | /* | |
1718 | * Save the original txq to restore before passing to the driver | |
1719 | */ | |
1720 | qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; | |
1721 | ||
1722 | if (unlikely(txq >= dev->real_num_tx_queues)) { | |
1723 | do { | |
1724 | txq -= dev->real_num_tx_queues; | |
1725 | } while (txq >= dev->real_num_tx_queues); | |
1726 | } | |
1727 | return txq; | |
1728 | } | |
1729 | ||
3d249d4c JP |
1730 | static void team_change_rx_flags(struct net_device *dev, int change) |
1731 | { | |
1732 | struct team *team = netdev_priv(dev); | |
1733 | struct team_port *port; | |
1734 | int inc; | |
1735 | ||
1736 | rcu_read_lock(); | |
1737 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1738 | if (change & IFF_PROMISC) { | |
1739 | inc = dev->flags & IFF_PROMISC ? 1 : -1; | |
1740 | dev_set_promiscuity(port->dev, inc); | |
1741 | } | |
1742 | if (change & IFF_ALLMULTI) { | |
1743 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; | |
1744 | dev_set_allmulti(port->dev, inc); | |
1745 | } | |
1746 | } | |
1747 | rcu_read_unlock(); | |
1748 | } | |
1749 | ||
1750 | static void team_set_rx_mode(struct net_device *dev) | |
1751 | { | |
1752 | struct team *team = netdev_priv(dev); | |
1753 | struct team_port *port; | |
1754 | ||
1755 | rcu_read_lock(); | |
1756 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
72b27032 VY |
1757 | dev_uc_sync_multiple(port->dev, dev); |
1758 | dev_mc_sync_multiple(port->dev, dev); | |
3d249d4c JP |
1759 | } |
1760 | rcu_read_unlock(); | |
1761 | } | |
1762 | ||
1763 | static int team_set_mac_address(struct net_device *dev, void *p) | |
1764 | { | |
1d76efe1 | 1765 | struct sockaddr *addr = p; |
3d249d4c JP |
1766 | struct team *team = netdev_priv(dev); |
1767 | struct team_port *port; | |
3d249d4c | 1768 | |
1d76efe1 JP |
1769 | if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) |
1770 | return -EADDRNOTAVAIL; | |
1771 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
9215f437 JP |
1772 | mutex_lock(&team->lock); |
1773 | list_for_each_entry(port, &team->port_list, list) | |
1d76efe1 JP |
1774 | if (team->ops.port_change_dev_addr) |
1775 | team->ops.port_change_dev_addr(team, port); | |
9215f437 | 1776 | mutex_unlock(&team->lock); |
3d249d4c JP |
1777 | return 0; |
1778 | } | |
1779 | ||
1780 | static int team_change_mtu(struct net_device *dev, int new_mtu) | |
1781 | { | |
1782 | struct team *team = netdev_priv(dev); | |
1783 | struct team_port *port; | |
1784 | int err; | |
1785 | ||
1786 | /* | |
1787 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1788 | * to traverse list in reverse under rcu_read_lock | |
1789 | */ | |
61dc3461 | 1790 | mutex_lock(&team->lock); |
9d0d68fa | 1791 | team->port_mtu_change_allowed = true; |
3d249d4c JP |
1792 | list_for_each_entry(port, &team->port_list, list) { |
1793 | err = dev_set_mtu(port->dev, new_mtu); | |
1794 | if (err) { | |
1795 | netdev_err(dev, "Device %s failed to change mtu", | |
1796 | port->dev->name); | |
1797 | goto unwind; | |
1798 | } | |
1799 | } | |
9d0d68fa | 1800 | team->port_mtu_change_allowed = false; |
61dc3461 | 1801 | mutex_unlock(&team->lock); |
3d249d4c JP |
1802 | |
1803 | dev->mtu = new_mtu; | |
1804 | ||
1805 | return 0; | |
1806 | ||
1807 | unwind: | |
1808 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1809 | dev_set_mtu(port->dev, dev->mtu); | |
9d0d68fa | 1810 | team->port_mtu_change_allowed = false; |
61dc3461 | 1811 | mutex_unlock(&team->lock); |
3d249d4c JP |
1812 | |
1813 | return err; | |
1814 | } | |
1815 | ||
1816 | static struct rtnl_link_stats64 * | |
1817 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) | |
1818 | { | |
1819 | struct team *team = netdev_priv(dev); | |
1820 | struct team_pcpu_stats *p; | |
1821 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; | |
bb63daf9 | 1822 | u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0; |
3d249d4c JP |
1823 | unsigned int start; |
1824 | int i; | |
1825 | ||
1826 | for_each_possible_cpu(i) { | |
1827 | p = per_cpu_ptr(team->pcpu_stats, i); | |
1828 | do { | |
57a7744e | 1829 | start = u64_stats_fetch_begin_irq(&p->syncp); |
3d249d4c JP |
1830 | rx_packets = p->rx_packets; |
1831 | rx_bytes = p->rx_bytes; | |
1832 | rx_multicast = p->rx_multicast; | |
1833 | tx_packets = p->tx_packets; | |
1834 | tx_bytes = p->tx_bytes; | |
57a7744e | 1835 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
3d249d4c JP |
1836 | |
1837 | stats->rx_packets += rx_packets; | |
1838 | stats->rx_bytes += rx_bytes; | |
1839 | stats->multicast += rx_multicast; | |
1840 | stats->tx_packets += tx_packets; | |
1841 | stats->tx_bytes += tx_bytes; | |
1842 | /* | |
bb63daf9 JW |
1843 | * rx_dropped, tx_dropped & rx_nohandler are u32, |
1844 | * updated without syncp protection. | |
3d249d4c JP |
1845 | */ |
1846 | rx_dropped += p->rx_dropped; | |
1847 | tx_dropped += p->tx_dropped; | |
bb63daf9 | 1848 | rx_nohandler += p->rx_nohandler; |
3d249d4c JP |
1849 | } |
1850 | stats->rx_dropped = rx_dropped; | |
1851 | stats->tx_dropped = tx_dropped; | |
bb63daf9 | 1852 | stats->rx_nohandler = rx_nohandler; |
3d249d4c JP |
1853 | return stats; |
1854 | } | |
1855 | ||
80d5c368 | 1856 | static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1857 | { |
1858 | struct team *team = netdev_priv(dev); | |
1859 | struct team_port *port; | |
87002b03 | 1860 | int err; |
3d249d4c | 1861 | |
87002b03 JP |
1862 | /* |
1863 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1864 | * to traverse list in reverse under rcu_read_lock | |
1865 | */ | |
1866 | mutex_lock(&team->lock); | |
1867 | list_for_each_entry(port, &team->port_list, list) { | |
80d5c368 | 1868 | err = vlan_vid_add(port->dev, proto, vid); |
87002b03 JP |
1869 | if (err) |
1870 | goto unwind; | |
3d249d4c | 1871 | } |
87002b03 | 1872 | mutex_unlock(&team->lock); |
8e586137 JP |
1873 | |
1874 | return 0; | |
87002b03 JP |
1875 | |
1876 | unwind: | |
1877 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
80d5c368 | 1878 | vlan_vid_del(port->dev, proto, vid); |
87002b03 JP |
1879 | mutex_unlock(&team->lock); |
1880 | ||
1881 | return err; | |
3d249d4c JP |
1882 | } |
1883 | ||
80d5c368 | 1884 | static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1885 | { |
1886 | struct team *team = netdev_priv(dev); | |
1887 | struct team_port *port; | |
1888 | ||
60a6531b IS |
1889 | mutex_lock(&team->lock); |
1890 | list_for_each_entry(port, &team->port_list, list) | |
80d5c368 | 1891 | vlan_vid_del(port->dev, proto, vid); |
60a6531b | 1892 | mutex_unlock(&team->lock); |
8e586137 JP |
1893 | |
1894 | return 0; | |
3d249d4c JP |
1895 | } |
1896 | ||
bd2d0837 JP |
1897 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1898 | static void team_poll_controller(struct net_device *dev) | |
1899 | { | |
1900 | } | |
1901 | ||
1902 | static void __team_netpoll_cleanup(struct team *team) | |
1903 | { | |
1904 | struct team_port *port; | |
1905 | ||
1906 | list_for_each_entry(port, &team->port_list, list) | |
1907 | team_port_disable_netpoll(port); | |
1908 | } | |
1909 | ||
1910 | static void team_netpoll_cleanup(struct net_device *dev) | |
1911 | { | |
1912 | struct team *team = netdev_priv(dev); | |
1913 | ||
1914 | mutex_lock(&team->lock); | |
1915 | __team_netpoll_cleanup(team); | |
1916 | mutex_unlock(&team->lock); | |
1917 | } | |
1918 | ||
1919 | static int team_netpoll_setup(struct net_device *dev, | |
a8779ec1 | 1920 | struct netpoll_info *npifo) |
bd2d0837 JP |
1921 | { |
1922 | struct team *team = netdev_priv(dev); | |
1923 | struct team_port *port; | |
3324d024 | 1924 | int err = 0; |
bd2d0837 JP |
1925 | |
1926 | mutex_lock(&team->lock); | |
1927 | list_for_each_entry(port, &team->port_list, list) { | |
a8779ec1 | 1928 | err = team_port_enable_netpoll(team, port); |
bd2d0837 JP |
1929 | if (err) { |
1930 | __team_netpoll_cleanup(team); | |
1931 | break; | |
1932 | } | |
1933 | } | |
1934 | mutex_unlock(&team->lock); | |
1935 | return err; | |
1936 | } | |
1937 | #endif | |
1938 | ||
3d249d4c JP |
1939 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev) |
1940 | { | |
1941 | struct team *team = netdev_priv(dev); | |
1942 | int err; | |
1943 | ||
61dc3461 | 1944 | mutex_lock(&team->lock); |
3d249d4c | 1945 | err = team_port_add(team, port_dev); |
61dc3461 | 1946 | mutex_unlock(&team->lock); |
3d249d4c JP |
1947 | return err; |
1948 | } | |
1949 | ||
1950 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) | |
1951 | { | |
1952 | struct team *team = netdev_priv(dev); | |
1953 | int err; | |
1954 | ||
61dc3461 | 1955 | mutex_lock(&team->lock); |
3d249d4c | 1956 | err = team_port_del(team, port_dev); |
61dc3461 | 1957 | mutex_unlock(&team->lock); |
3d249d4c JP |
1958 | return err; |
1959 | } | |
1960 | ||
234a8fd4 JP |
1961 | static netdev_features_t team_fix_features(struct net_device *dev, |
1962 | netdev_features_t features) | |
1963 | { | |
1964 | struct team_port *port; | |
1965 | struct team *team = netdev_priv(dev); | |
1966 | netdev_features_t mask; | |
1967 | ||
7889cbee | 1968 | mask = features; |
234a8fd4 JP |
1969 | features &= ~NETIF_F_ONE_FOR_ALL; |
1970 | features |= NETIF_F_ALL_FOR_ALL; | |
1971 | ||
1972 | rcu_read_lock(); | |
1973 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1974 | features = netdev_increment_features(features, | |
1975 | port->dev->features, | |
1976 | mask); | |
1977 | } | |
1978 | rcu_read_unlock(); | |
247f6d0f JP |
1979 | |
1980 | features = netdev_add_tso_features(features, mask); | |
1981 | ||
234a8fd4 JP |
1982 | return features; |
1983 | } | |
1984 | ||
4cafe373 FL |
1985 | static int team_change_carrier(struct net_device *dev, bool new_carrier) |
1986 | { | |
e185483e FL |
1987 | struct team *team = netdev_priv(dev); |
1988 | ||
1989 | team->user_carrier_enabled = true; | |
1990 | ||
4cafe373 FL |
1991 | if (new_carrier) |
1992 | netif_carrier_on(dev); | |
1993 | else | |
1994 | netif_carrier_off(dev); | |
1995 | return 0; | |
1996 | } | |
1997 | ||
3d249d4c JP |
1998 | static const struct net_device_ops team_netdev_ops = { |
1999 | .ndo_init = team_init, | |
2000 | .ndo_uninit = team_uninit, | |
2001 | .ndo_open = team_open, | |
2002 | .ndo_stop = team_close, | |
2003 | .ndo_start_xmit = team_xmit, | |
6c85f2bd | 2004 | .ndo_select_queue = team_select_queue, |
3d249d4c JP |
2005 | .ndo_change_rx_flags = team_change_rx_flags, |
2006 | .ndo_set_rx_mode = team_set_rx_mode, | |
2007 | .ndo_set_mac_address = team_set_mac_address, | |
2008 | .ndo_change_mtu = team_change_mtu, | |
2009 | .ndo_get_stats64 = team_get_stats64, | |
2010 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, | |
2011 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, | |
bd2d0837 JP |
2012 | #ifdef CONFIG_NET_POLL_CONTROLLER |
2013 | .ndo_poll_controller = team_poll_controller, | |
2014 | .ndo_netpoll_setup = team_netpoll_setup, | |
2015 | .ndo_netpoll_cleanup = team_netpoll_cleanup, | |
2016 | #endif | |
3d249d4c JP |
2017 | .ndo_add_slave = team_add_slave, |
2018 | .ndo_del_slave = team_del_slave, | |
234a8fd4 | 2019 | .ndo_fix_features = team_fix_features, |
4cafe373 | 2020 | .ndo_change_carrier = team_change_carrier, |
fc8f40d8 | 2021 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, |
85fdb956 | 2022 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
54ba5a0b | 2023 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, |
45d4122c SS |
2024 | .ndo_fdb_add = switchdev_port_fdb_add, |
2025 | .ndo_fdb_del = switchdev_port_fdb_del, | |
2026 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
b9f4cf75 | 2027 | .ndo_features_check = passthru_features_check, |
3d249d4c JP |
2028 | }; |
2029 | ||
7f51c587 FL |
2030 | /*********************** |
2031 | * ethtool interface | |
2032 | ***********************/ | |
2033 | ||
2034 | static void team_ethtool_get_drvinfo(struct net_device *dev, | |
2035 | struct ethtool_drvinfo *drvinfo) | |
2036 | { | |
3066af58 FL |
2037 | strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
2038 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
7f51c587 FL |
2039 | } |
2040 | ||
2041 | static const struct ethtool_ops team_ethtool_ops = { | |
2042 | .get_drvinfo = team_ethtool_get_drvinfo, | |
2043 | .get_link = ethtool_op_get_link, | |
2044 | }; | |
3d249d4c JP |
2045 | |
2046 | /*********************** | |
2047 | * rt netlink interface | |
2048 | ***********************/ | |
2049 | ||
1d76efe1 JP |
2050 | static void team_setup_by_port(struct net_device *dev, |
2051 | struct net_device *port_dev) | |
2052 | { | |
2053 | dev->header_ops = port_dev->header_ops; | |
2054 | dev->type = port_dev->type; | |
2055 | dev->hard_header_len = port_dev->hard_header_len; | |
2056 | dev->addr_len = port_dev->addr_len; | |
2057 | dev->mtu = port_dev->mtu; | |
2058 | memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); | |
93af7357 | 2059 | eth_hw_addr_inherit(dev, port_dev); |
1d76efe1 JP |
2060 | } |
2061 | ||
2062 | static int team_dev_type_check_change(struct net_device *dev, | |
2063 | struct net_device *port_dev) | |
2064 | { | |
2065 | struct team *team = netdev_priv(dev); | |
2066 | char *portname = port_dev->name; | |
2067 | int err; | |
2068 | ||
2069 | if (dev->type == port_dev->type) | |
2070 | return 0; | |
2071 | if (!list_empty(&team->port_list)) { | |
2072 | netdev_err(dev, "Device %s is of different type\n", portname); | |
2073 | return -EBUSY; | |
2074 | } | |
2075 | err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); | |
2076 | err = notifier_to_errno(err); | |
2077 | if (err) { | |
2078 | netdev_err(dev, "Refused to change device type\n"); | |
2079 | return err; | |
2080 | } | |
2081 | dev_uc_flush(dev); | |
2082 | dev_mc_flush(dev); | |
2083 | team_setup_by_port(dev, port_dev); | |
2084 | call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); | |
2085 | return 0; | |
2086 | } | |
2087 | ||
3d249d4c JP |
2088 | static void team_setup(struct net_device *dev) |
2089 | { | |
2090 | ether_setup(dev); | |
2091 | ||
2092 | dev->netdev_ops = &team_netdev_ops; | |
7f51c587 | 2093 | dev->ethtool_ops = &team_ethtool_ops; |
3d249d4c | 2094 | dev->destructor = team_destructor; |
3d249d4c | 2095 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); |
22e380a6 | 2096 | dev->priv_flags |= IFF_NO_QUEUE; |
c981e421 | 2097 | dev->priv_flags |= IFF_TEAM; |
3d249d4c JP |
2098 | |
2099 | /* | |
2100 | * Indicate we support unicast address filtering. That way core won't | |
2101 | * bring us to promisc mode in case a unicast addr is added. | |
2102 | * Let this up to underlay drivers. | |
2103 | */ | |
5a1d1c8c | 2104 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
3d249d4c JP |
2105 | |
2106 | dev->features |= NETIF_F_LLTX; | |
2107 | dev->features |= NETIF_F_GRO; | |
99301ba1 WC |
2108 | |
2109 | /* Don't allow team devices to change network namespaces. */ | |
2110 | dev->features |= NETIF_F_NETNS_LOCAL; | |
2111 | ||
3ed71471 | 2112 | dev->hw_features = TEAM_VLAN_FEATURES | |
f646968f PM |
2113 | NETIF_F_HW_VLAN_CTAG_TX | |
2114 | NETIF_F_HW_VLAN_CTAG_RX | | |
2115 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
3d249d4c | 2116 | |
3268e5cb | 2117 | dev->hw_features |= NETIF_F_GSO_ENCAP_ALL; |
3d249d4c JP |
2118 | dev->features |= dev->hw_features; |
2119 | } | |
2120 | ||
2121 | static int team_newlink(struct net *src_net, struct net_device *dev, | |
2122 | struct nlattr *tb[], struct nlattr *data[]) | |
2123 | { | |
3d249d4c | 2124 | if (tb[IFLA_ADDRESS] == NULL) |
7ce5d222 | 2125 | eth_hw_addr_random(dev); |
3d249d4c | 2126 | |
ff204cce | 2127 | return register_netdevice(dev); |
3d249d4c JP |
2128 | } |
2129 | ||
2130 | static int team_validate(struct nlattr *tb[], struct nlattr *data[]) | |
2131 | { | |
2132 | if (tb[IFLA_ADDRESS]) { | |
2133 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
2134 | return -EINVAL; | |
2135 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
2136 | return -EADDRNOTAVAIL; | |
2137 | } | |
2138 | return 0; | |
2139 | } | |
2140 | ||
6c85f2bd JP |
2141 | static unsigned int team_get_num_tx_queues(void) |
2142 | { | |
2143 | return TEAM_DEFAULT_NUM_TX_QUEUES; | |
2144 | } | |
2145 | ||
2146 | static unsigned int team_get_num_rx_queues(void) | |
2147 | { | |
2148 | return TEAM_DEFAULT_NUM_RX_QUEUES; | |
2149 | } | |
2150 | ||
3d249d4c | 2151 | static struct rtnl_link_ops team_link_ops __read_mostly = { |
6c85f2bd JP |
2152 | .kind = DRV_NAME, |
2153 | .priv_size = sizeof(struct team), | |
2154 | .setup = team_setup, | |
2155 | .newlink = team_newlink, | |
2156 | .validate = team_validate, | |
2157 | .get_num_tx_queues = team_get_num_tx_queues, | |
2158 | .get_num_rx_queues = team_get_num_rx_queues, | |
3d249d4c JP |
2159 | }; |
2160 | ||
2161 | ||
2162 | /*********************************** | |
2163 | * Generic netlink custom interface | |
2164 | ***********************************/ | |
2165 | ||
2166 | static struct genl_family team_nl_family = { | |
2167 | .id = GENL_ID_GENERATE, | |
2168 | .name = TEAM_GENL_NAME, | |
2169 | .version = TEAM_GENL_VERSION, | |
2170 | .maxattr = TEAM_ATTR_MAX, | |
2171 | .netnsok = true, | |
2172 | }; | |
2173 | ||
2174 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { | |
2175 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2176 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, | |
2177 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, | |
2178 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, | |
2179 | }; | |
2180 | ||
2181 | static const struct nla_policy | |
2182 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { | |
2183 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2184 | [TEAM_ATTR_OPTION_NAME] = { | |
2185 | .type = NLA_STRING, | |
2186 | .len = TEAM_STRING_MAX_LEN, | |
2187 | }, | |
2188 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, | |
2189 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, | |
2615598f | 2190 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
3d249d4c JP |
2191 | }; |
2192 | ||
2193 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) | |
2194 | { | |
2195 | struct sk_buff *msg; | |
2196 | void *hdr; | |
2197 | int err; | |
2198 | ||
58050fce | 2199 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
2200 | if (!msg) |
2201 | return -ENOMEM; | |
2202 | ||
15e47304 | 2203 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, |
3d249d4c | 2204 | &team_nl_family, 0, TEAM_CMD_NOOP); |
a326e6dd WY |
2205 | if (!hdr) { |
2206 | err = -EMSGSIZE; | |
3d249d4c JP |
2207 | goto err_msg_put; |
2208 | } | |
2209 | ||
2210 | genlmsg_end(msg, hdr); | |
2211 | ||
15e47304 | 2212 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); |
3d249d4c JP |
2213 | |
2214 | err_msg_put: | |
2215 | nlmsg_free(msg); | |
2216 | ||
2217 | return err; | |
2218 | } | |
2219 | ||
2220 | /* | |
2221 | * Netlink cmd functions should be locked by following two functions. | |
8c0713a5 | 2222 | * Since dev gets held here, that ensures dev won't disappear in between. |
3d249d4c JP |
2223 | */ |
2224 | static struct team *team_nl_team_get(struct genl_info *info) | |
2225 | { | |
2226 | struct net *net = genl_info_net(info); | |
2227 | int ifindex; | |
2228 | struct net_device *dev; | |
2229 | struct team *team; | |
2230 | ||
2231 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) | |
2232 | return NULL; | |
2233 | ||
2234 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); | |
8c0713a5 | 2235 | dev = dev_get_by_index(net, ifindex); |
3d249d4c | 2236 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
8c0713a5 JP |
2237 | if (dev) |
2238 | dev_put(dev); | |
3d249d4c JP |
2239 | return NULL; |
2240 | } | |
2241 | ||
2242 | team = netdev_priv(dev); | |
61dc3461 | 2243 | mutex_lock(&team->lock); |
3d249d4c JP |
2244 | return team; |
2245 | } | |
2246 | ||
2247 | static void team_nl_team_put(struct team *team) | |
2248 | { | |
61dc3461 | 2249 | mutex_unlock(&team->lock); |
8c0713a5 | 2250 | dev_put(team->dev); |
3d249d4c JP |
2251 | } |
2252 | ||
9b00cf2d | 2253 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
15e47304 | 2254 | struct team *team, u32 portid); |
9b00cf2d | 2255 | |
15e47304 | 2256 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) |
9b00cf2d | 2257 | { |
15e47304 | 2258 | return genlmsg_unicast(dev_net(team->dev), skb, portid); |
9b00cf2d JP |
2259 | } |
2260 | ||
01048d9a JP |
2261 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
2262 | struct team_option_inst *opt_inst) | |
2263 | { | |
2264 | struct nlattr *option_item; | |
2265 | struct team_option *option = opt_inst->option; | |
9b00cf2d | 2266 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
01048d9a JP |
2267 | struct team_gsetter_ctx ctx; |
2268 | int err; | |
2269 | ||
9b00cf2d JP |
2270 | ctx.info = opt_inst_info; |
2271 | err = team_option_get(team, opt_inst, &ctx); | |
2272 | if (err) | |
2273 | return err; | |
2274 | ||
01048d9a JP |
2275 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
2276 | if (!option_item) | |
9b00cf2d | 2277 | return -EMSGSIZE; |
01048d9a | 2278 | |
9b00cf2d JP |
2279 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
2280 | goto nest_cancel; | |
01048d9a JP |
2281 | if (opt_inst_info->port && |
2282 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, | |
2283 | opt_inst_info->port->dev->ifindex)) | |
9b00cf2d | 2284 | goto nest_cancel; |
01048d9a JP |
2285 | if (opt_inst->option->array_size && |
2286 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, | |
2287 | opt_inst_info->array_index)) | |
9b00cf2d | 2288 | goto nest_cancel; |
01048d9a JP |
2289 | |
2290 | switch (option->type) { | |
2291 | case TEAM_OPTION_TYPE_U32: | |
2292 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) | |
9b00cf2d | 2293 | goto nest_cancel; |
01048d9a | 2294 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
9b00cf2d | 2295 | goto nest_cancel; |
01048d9a JP |
2296 | break; |
2297 | case TEAM_OPTION_TYPE_STRING: | |
2298 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) | |
9b00cf2d | 2299 | goto nest_cancel; |
01048d9a JP |
2300 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
2301 | ctx.data.str_val)) | |
9b00cf2d | 2302 | goto nest_cancel; |
01048d9a JP |
2303 | break; |
2304 | case TEAM_OPTION_TYPE_BINARY: | |
2305 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) | |
9b00cf2d | 2306 | goto nest_cancel; |
01048d9a JP |
2307 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
2308 | ctx.data.bin_val.ptr)) | |
9b00cf2d | 2309 | goto nest_cancel; |
01048d9a JP |
2310 | break; |
2311 | case TEAM_OPTION_TYPE_BOOL: | |
2312 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) | |
9b00cf2d | 2313 | goto nest_cancel; |
01048d9a JP |
2314 | if (ctx.data.bool_val && |
2315 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) | |
9b00cf2d | 2316 | goto nest_cancel; |
01048d9a | 2317 | break; |
69821638 JP |
2318 | case TEAM_OPTION_TYPE_S32: |
2319 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) | |
2320 | goto nest_cancel; | |
2321 | if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) | |
2322 | goto nest_cancel; | |
2323 | break; | |
01048d9a JP |
2324 | default: |
2325 | BUG(); | |
2326 | } | |
9b00cf2d JP |
2327 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
2328 | goto nest_cancel; | |
2329 | if (opt_inst->changed) { | |
2330 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) | |
2331 | goto nest_cancel; | |
2332 | opt_inst->changed = false; | |
2333 | } | |
01048d9a JP |
2334 | nla_nest_end(skb, option_item); |
2335 | return 0; | |
2336 | ||
9b00cf2d JP |
2337 | nest_cancel: |
2338 | nla_nest_cancel(skb, option_item); | |
2339 | return -EMSGSIZE; | |
2340 | } | |
2341 | ||
2342 | static int __send_and_alloc_skb(struct sk_buff **pskb, | |
15e47304 | 2343 | struct team *team, u32 portid, |
9b00cf2d JP |
2344 | team_nl_send_func_t *send_func) |
2345 | { | |
2346 | int err; | |
2347 | ||
2348 | if (*pskb) { | |
15e47304 | 2349 | err = send_func(*pskb, team, portid); |
9b00cf2d JP |
2350 | if (err) |
2351 | return err; | |
2352 | } | |
58050fce | 2353 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9b00cf2d JP |
2354 | if (!*pskb) |
2355 | return -ENOMEM; | |
2356 | return 0; | |
01048d9a JP |
2357 | } |
2358 | ||
15e47304 | 2359 | static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, |
9b00cf2d | 2360 | int flags, team_nl_send_func_t *send_func, |
01048d9a | 2361 | struct list_head *sel_opt_inst_list) |
3d249d4c JP |
2362 | { |
2363 | struct nlattr *option_list; | |
9b00cf2d | 2364 | struct nlmsghdr *nlh; |
3d249d4c | 2365 | void *hdr; |
80f7c668 JP |
2366 | struct team_option_inst *opt_inst; |
2367 | int err; | |
9b00cf2d JP |
2368 | struct sk_buff *skb = NULL; |
2369 | bool incomplete; | |
2370 | int i; | |
3d249d4c | 2371 | |
9b00cf2d JP |
2372 | opt_inst = list_first_entry(sel_opt_inst_list, |
2373 | struct team_option_inst, tmp_list); | |
2374 | ||
2375 | start_again: | |
15e47304 | 2376 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2377 | if (err) |
2378 | return err; | |
2379 | ||
15e47304 | 2380 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
3d249d4c | 2381 | TEAM_CMD_OPTIONS_GET); |
a326e6dd WY |
2382 | if (!hdr) |
2383 | return -EMSGSIZE; | |
3d249d4c | 2384 | |
86ebb02d DM |
2385 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2386 | goto nla_put_failure; | |
3d249d4c JP |
2387 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
2388 | if (!option_list) | |
75db986a | 2389 | goto nla_put_failure; |
3d249d4c | 2390 | |
9b00cf2d JP |
2391 | i = 0; |
2392 | incomplete = false; | |
2393 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { | |
01048d9a | 2394 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
9b00cf2d JP |
2395 | if (err) { |
2396 | if (err == -EMSGSIZE) { | |
2397 | if (!i) | |
2398 | goto errout; | |
2399 | incomplete = true; | |
2400 | break; | |
2401 | } | |
01048d9a | 2402 | goto errout; |
9b00cf2d JP |
2403 | } |
2404 | i++; | |
3d249d4c JP |
2405 | } |
2406 | ||
2407 | nla_nest_end(skb, option_list); | |
9b00cf2d JP |
2408 | genlmsg_end(skb, hdr); |
2409 | if (incomplete) | |
2410 | goto start_again; | |
2411 | ||
2412 | send_done: | |
15e47304 | 2413 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
9b00cf2d | 2414 | if (!nlh) { |
15e47304 | 2415 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2416 | if (err) |
2417 | goto errout; | |
2418 | goto send_done; | |
2419 | } | |
2420 | ||
15e47304 | 2421 | return send_func(skb, team, portid); |
3d249d4c JP |
2422 | |
2423 | nla_put_failure: | |
80f7c668 JP |
2424 | err = -EMSGSIZE; |
2425 | errout: | |
3d249d4c | 2426 | genlmsg_cancel(skb, hdr); |
9b00cf2d | 2427 | nlmsg_free(skb); |
80f7c668 | 2428 | return err; |
3d249d4c JP |
2429 | } |
2430 | ||
3d249d4c JP |
2431 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
2432 | { | |
2433 | struct team *team; | |
9b00cf2d | 2434 | struct team_option_inst *opt_inst; |
3d249d4c | 2435 | int err; |
9b00cf2d | 2436 | LIST_HEAD(sel_opt_inst_list); |
3d249d4c JP |
2437 | |
2438 | team = team_nl_team_get(info); | |
2439 | if (!team) | |
2440 | return -EINVAL; | |
2441 | ||
9b00cf2d JP |
2442 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
2443 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
15e47304 | 2444 | err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, |
9b00cf2d JP |
2445 | NLM_F_ACK, team_nl_send_unicast, |
2446 | &sel_opt_inst_list); | |
3d249d4c JP |
2447 | |
2448 | team_nl_team_put(team); | |
2449 | ||
2450 | return err; | |
2451 | } | |
2452 | ||
2fcdb2c9 JP |
2453 | static int team_nl_send_event_options_get(struct team *team, |
2454 | struct list_head *sel_opt_inst_list); | |
2455 | ||
3d249d4c JP |
2456 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
2457 | { | |
2458 | struct team *team; | |
2459 | int err = 0; | |
2460 | int i; | |
2461 | struct nlattr *nl_option; | |
2fcdb2c9 | 2462 | LIST_HEAD(opt_inst_list); |
3d249d4c | 2463 | |
7d259505 JP |
2464 | rtnl_lock(); |
2465 | ||
3d249d4c | 2466 | team = team_nl_team_get(info); |
7d259505 JP |
2467 | if (!team) { |
2468 | err = -EINVAL; | |
2469 | goto rtnl_unlock; | |
2470 | } | |
3d249d4c JP |
2471 | |
2472 | err = -EINVAL; | |
2473 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { | |
2474 | err = -EINVAL; | |
2475 | goto team_put; | |
2476 | } | |
2477 | ||
2478 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { | |
80f7c668 | 2479 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
b1303326 | 2480 | struct nlattr *attr; |
14f066ba | 2481 | struct nlattr *attr_data; |
3d249d4c | 2482 | enum team_option_type opt_type; |
80f7c668 | 2483 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
b1303326 JP |
2484 | u32 opt_array_index = 0; |
2485 | bool opt_is_array = false; | |
80f7c668 | 2486 | struct team_option_inst *opt_inst; |
3d249d4c JP |
2487 | char *opt_name; |
2488 | bool opt_found = false; | |
2489 | ||
2490 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { | |
2491 | err = -EINVAL; | |
2492 | goto team_put; | |
2493 | } | |
80f7c668 | 2494 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
3d249d4c JP |
2495 | nl_option, team_nl_option_policy); |
2496 | if (err) | |
2497 | goto team_put; | |
80f7c668 | 2498 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
14f066ba | 2499 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
3d249d4c JP |
2500 | err = -EINVAL; |
2501 | goto team_put; | |
2502 | } | |
80f7c668 | 2503 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
3d249d4c JP |
2504 | case NLA_U32: |
2505 | opt_type = TEAM_OPTION_TYPE_U32; | |
2506 | break; | |
2507 | case NLA_STRING: | |
2508 | opt_type = TEAM_OPTION_TYPE_STRING; | |
2509 | break; | |
2615598f JP |
2510 | case NLA_BINARY: |
2511 | opt_type = TEAM_OPTION_TYPE_BINARY; | |
2512 | break; | |
14f066ba JP |
2513 | case NLA_FLAG: |
2514 | opt_type = TEAM_OPTION_TYPE_BOOL; | |
2515 | break; | |
69821638 JP |
2516 | case NLA_S32: |
2517 | opt_type = TEAM_OPTION_TYPE_S32; | |
2518 | break; | |
3d249d4c JP |
2519 | default: |
2520 | goto team_put; | |
2521 | } | |
2522 | ||
14f066ba JP |
2523 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
2524 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { | |
2525 | err = -EINVAL; | |
2526 | goto team_put; | |
2527 | } | |
2528 | ||
80f7c668 | 2529 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
b1303326 JP |
2530 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
2531 | if (attr) | |
2532 | opt_port_ifindex = nla_get_u32(attr); | |
2533 | ||
2534 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; | |
2535 | if (attr) { | |
2536 | opt_is_array = true; | |
2537 | opt_array_index = nla_get_u32(attr); | |
2538 | } | |
80f7c668 JP |
2539 | |
2540 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
2541 | struct team_option *option = opt_inst->option; | |
80f7c668 | 2542 | struct team_gsetter_ctx ctx; |
85d59a87 | 2543 | struct team_option_inst_info *opt_inst_info; |
80f7c668 | 2544 | int tmp_ifindex; |
3d249d4c | 2545 | |
85d59a87 JP |
2546 | opt_inst_info = &opt_inst->info; |
2547 | tmp_ifindex = opt_inst_info->port ? | |
2548 | opt_inst_info->port->dev->ifindex : 0; | |
3d249d4c | 2549 | if (option->type != opt_type || |
80f7c668 | 2550 | strcmp(option->name, opt_name) || |
b1303326 JP |
2551 | tmp_ifindex != opt_port_ifindex || |
2552 | (option->array_size && !opt_is_array) || | |
85d59a87 | 2553 | opt_inst_info->array_index != opt_array_index) |
3d249d4c JP |
2554 | continue; |
2555 | opt_found = true; | |
85d59a87 | 2556 | ctx.info = opt_inst_info; |
3d249d4c JP |
2557 | switch (opt_type) { |
2558 | case TEAM_OPTION_TYPE_U32: | |
14f066ba | 2559 | ctx.data.u32_val = nla_get_u32(attr_data); |
3d249d4c JP |
2560 | break; |
2561 | case TEAM_OPTION_TYPE_STRING: | |
14f066ba | 2562 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
2615598f JP |
2563 | err = -EINVAL; |
2564 | goto team_put; | |
2565 | } | |
14f066ba | 2566 | ctx.data.str_val = nla_data(attr_data); |
3d249d4c | 2567 | break; |
2615598f | 2568 | case TEAM_OPTION_TYPE_BINARY: |
14f066ba JP |
2569 | ctx.data.bin_val.len = nla_len(attr_data); |
2570 | ctx.data.bin_val.ptr = nla_data(attr_data); | |
2571 | break; | |
2572 | case TEAM_OPTION_TYPE_BOOL: | |
2573 | ctx.data.bool_val = attr_data ? true : false; | |
2615598f | 2574 | break; |
69821638 JP |
2575 | case TEAM_OPTION_TYPE_S32: |
2576 | ctx.data.s32_val = nla_get_s32(attr_data); | |
2577 | break; | |
3d249d4c JP |
2578 | default: |
2579 | BUG(); | |
2580 | } | |
80f7c668 | 2581 | err = team_option_set(team, opt_inst, &ctx); |
3d249d4c JP |
2582 | if (err) |
2583 | goto team_put; | |
2fcdb2c9 JP |
2584 | opt_inst->changed = true; |
2585 | list_add(&opt_inst->tmp_list, &opt_inst_list); | |
3d249d4c JP |
2586 | } |
2587 | if (!opt_found) { | |
2588 | err = -ENOENT; | |
2589 | goto team_put; | |
2590 | } | |
2591 | } | |
2592 | ||
2fcdb2c9 JP |
2593 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
2594 | ||
3d249d4c JP |
2595 | team_put: |
2596 | team_nl_team_put(team); | |
7d259505 JP |
2597 | rtnl_unlock: |
2598 | rtnl_unlock(); | |
3d249d4c JP |
2599 | return err; |
2600 | } | |
2601 | ||
d90f889e JP |
2602 | static int team_nl_fill_one_port_get(struct sk_buff *skb, |
2603 | struct team_port *port) | |
2604 | { | |
2605 | struct nlattr *port_item; | |
2606 | ||
2607 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); | |
2608 | if (!port_item) | |
2609 | goto nest_cancel; | |
2610 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) | |
2611 | goto nest_cancel; | |
2612 | if (port->changed) { | |
2613 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) | |
2614 | goto nest_cancel; | |
2615 | port->changed = false; | |
2616 | } | |
2617 | if ((port->removed && | |
2618 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || | |
2619 | (port->state.linkup && | |
2620 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || | |
2621 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || | |
2622 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) | |
2623 | goto nest_cancel; | |
2624 | nla_nest_end(skb, port_item); | |
2625 | return 0; | |
2626 | ||
2627 | nest_cancel: | |
2628 | nla_nest_cancel(skb, port_item); | |
2629 | return -EMSGSIZE; | |
2630 | } | |
2631 | ||
2632 | static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, | |
2633 | int flags, team_nl_send_func_t *send_func, | |
2634 | struct team_port *one_port) | |
3d249d4c JP |
2635 | { |
2636 | struct nlattr *port_list; | |
d90f889e | 2637 | struct nlmsghdr *nlh; |
3d249d4c JP |
2638 | void *hdr; |
2639 | struct team_port *port; | |
d90f889e JP |
2640 | int err; |
2641 | struct sk_buff *skb = NULL; | |
2642 | bool incomplete; | |
2643 | int i; | |
3d249d4c | 2644 | |
3f3e7ce4 JP |
2645 | port = list_first_entry_or_null(&team->port_list, |
2646 | struct team_port, list); | |
d90f889e JP |
2647 | |
2648 | start_again: | |
2649 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2650 | if (err) | |
2651 | return err; | |
2652 | ||
2653 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, | |
3d249d4c | 2654 | TEAM_CMD_PORT_LIST_GET); |
a326e6dd WY |
2655 | if (!hdr) |
2656 | return -EMSGSIZE; | |
3d249d4c | 2657 | |
86ebb02d DM |
2658 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2659 | goto nla_put_failure; | |
3d249d4c JP |
2660 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
2661 | if (!port_list) | |
3221c646 | 2662 | goto nla_put_failure; |
3d249d4c | 2663 | |
d90f889e JP |
2664 | i = 0; |
2665 | incomplete = false; | |
3d249d4c | 2666 | |
d90f889e JP |
2667 | /* If one port is selected, called wants to send port list containing |
2668 | * only this port. Otherwise go through all listed ports and send all | |
2669 | */ | |
2670 | if (one_port) { | |
2671 | err = team_nl_fill_one_port_get(skb, one_port); | |
2672 | if (err) | |
2673 | goto errout; | |
3f3e7ce4 JP |
2674 | } else if (port) { |
2675 | list_for_each_entry_from(port, &team->port_list, list) { | |
d90f889e JP |
2676 | err = team_nl_fill_one_port_get(skb, port); |
2677 | if (err) { | |
2678 | if (err == -EMSGSIZE) { | |
2679 | if (!i) | |
2680 | goto errout; | |
2681 | incomplete = true; | |
2682 | break; | |
2683 | } | |
2684 | goto errout; | |
2685 | } | |
2686 | i++; | |
b82b9183 | 2687 | } |
3d249d4c JP |
2688 | } |
2689 | ||
2690 | nla_nest_end(skb, port_list); | |
d90f889e JP |
2691 | genlmsg_end(skb, hdr); |
2692 | if (incomplete) | |
2693 | goto start_again; | |
2694 | ||
2695 | send_done: | |
2696 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2697 | if (!nlh) { | |
2698 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2699 | if (err) | |
2700 | goto errout; | |
2701 | goto send_done; | |
2702 | } | |
2703 | ||
2704 | return send_func(skb, team, portid); | |
3d249d4c JP |
2705 | |
2706 | nla_put_failure: | |
d90f889e JP |
2707 | err = -EMSGSIZE; |
2708 | errout: | |
3d249d4c | 2709 | genlmsg_cancel(skb, hdr); |
d90f889e JP |
2710 | nlmsg_free(skb); |
2711 | return err; | |
3d249d4c JP |
2712 | } |
2713 | ||
2714 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, | |
2715 | struct genl_info *info) | |
2716 | { | |
2717 | struct team *team; | |
2718 | int err; | |
2719 | ||
2720 | team = team_nl_team_get(info); | |
2721 | if (!team) | |
2722 | return -EINVAL; | |
2723 | ||
d90f889e JP |
2724 | err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, |
2725 | NLM_F_ACK, team_nl_send_unicast, NULL); | |
3d249d4c JP |
2726 | |
2727 | team_nl_team_put(team); | |
2728 | ||
2729 | return err; | |
2730 | } | |
2731 | ||
4534de83 | 2732 | static const struct genl_ops team_nl_ops[] = { |
3d249d4c JP |
2733 | { |
2734 | .cmd = TEAM_CMD_NOOP, | |
2735 | .doit = team_nl_cmd_noop, | |
2736 | .policy = team_nl_policy, | |
2737 | }, | |
2738 | { | |
2739 | .cmd = TEAM_CMD_OPTIONS_SET, | |
2740 | .doit = team_nl_cmd_options_set, | |
2741 | .policy = team_nl_policy, | |
2742 | .flags = GENL_ADMIN_PERM, | |
2743 | }, | |
2744 | { | |
2745 | .cmd = TEAM_CMD_OPTIONS_GET, | |
2746 | .doit = team_nl_cmd_options_get, | |
2747 | .policy = team_nl_policy, | |
2748 | .flags = GENL_ADMIN_PERM, | |
2749 | }, | |
2750 | { | |
2751 | .cmd = TEAM_CMD_PORT_LIST_GET, | |
2752 | .doit = team_nl_cmd_port_list_get, | |
2753 | .policy = team_nl_policy, | |
2754 | .flags = GENL_ADMIN_PERM, | |
2755 | }, | |
2756 | }; | |
2757 | ||
2a94fe48 JB |
2758 | static const struct genl_multicast_group team_nl_mcgrps[] = { |
2759 | { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, | |
3d249d4c JP |
2760 | }; |
2761 | ||
9b00cf2d | 2762 | static int team_nl_send_multicast(struct sk_buff *skb, |
15e47304 | 2763 | struct team *team, u32 portid) |
9b00cf2d | 2764 | { |
68eb5503 | 2765 | return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), |
2a94fe48 | 2766 | skb, 0, 0, GFP_KERNEL); |
9b00cf2d JP |
2767 | } |
2768 | ||
01048d9a JP |
2769 | static int team_nl_send_event_options_get(struct team *team, |
2770 | struct list_head *sel_opt_inst_list) | |
3d249d4c | 2771 | { |
9b00cf2d JP |
2772 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
2773 | sel_opt_inst_list); | |
3d249d4c JP |
2774 | } |
2775 | ||
d90f889e JP |
2776 | static int team_nl_send_event_port_get(struct team *team, |
2777 | struct team_port *port) | |
3d249d4c | 2778 | { |
d90f889e JP |
2779 | return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, |
2780 | port); | |
3d249d4c JP |
2781 | } |
2782 | ||
2783 | static int team_nl_init(void) | |
2784 | { | |
2a94fe48 JB |
2785 | return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops, |
2786 | team_nl_mcgrps); | |
3d249d4c JP |
2787 | } |
2788 | ||
2789 | static void team_nl_fini(void) | |
2790 | { | |
2791 | genl_unregister_family(&team_nl_family); | |
2792 | } | |
2793 | ||
2794 | ||
2795 | /****************** | |
2796 | * Change checkers | |
2797 | ******************/ | |
2798 | ||
b82b9183 | 2799 | static void __team_options_change_check(struct team *team) |
3d249d4c JP |
2800 | { |
2801 | int err; | |
01048d9a JP |
2802 | struct team_option_inst *opt_inst; |
2803 | LIST_HEAD(sel_opt_inst_list); | |
3d249d4c | 2804 | |
01048d9a JP |
2805 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
2806 | if (opt_inst->changed) | |
2807 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
2808 | } | |
2809 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); | |
0c7517e9 | 2810 | if (err && err != -ESRCH) |
9b00cf2d JP |
2811 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
2812 | err); | |
3d249d4c JP |
2813 | } |
2814 | ||
2815 | /* rtnl lock is held */ | |
10f3f51d JP |
2816 | |
2817 | static void __team_port_change_send(struct team_port *port, bool linkup) | |
3d249d4c JP |
2818 | { |
2819 | int err; | |
2820 | ||
b82b9183 | 2821 | port->changed = true; |
71472ec1 JP |
2822 | port->state.linkup = linkup; |
2823 | team_refresh_port_linkup(port); | |
3d249d4c | 2824 | if (linkup) { |
0ab6b544 | 2825 | struct ethtool_link_ksettings ecmd; |
3d249d4c | 2826 | |
0ab6b544 | 2827 | err = __ethtool_get_link_ksettings(port->dev, &ecmd); |
3d249d4c | 2828 | if (!err) { |
0ab6b544 DD |
2829 | port->state.speed = ecmd.base.speed; |
2830 | port->state.duplex = ecmd.base.duplex; | |
3d249d4c JP |
2831 | goto send_event; |
2832 | } | |
2833 | } | |
71472ec1 JP |
2834 | port->state.speed = 0; |
2835 | port->state.duplex = 0; | |
3d249d4c JP |
2836 | |
2837 | send_event: | |
d90f889e | 2838 | err = team_nl_send_event_port_get(port->team, port); |
0c7517e9 JP |
2839 | if (err && err != -ESRCH) |
2840 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", | |
2841 | port->dev->name, err); | |
3d249d4c JP |
2842 | |
2843 | } | |
2844 | ||
06a7fc42 FL |
2845 | static void __team_carrier_check(struct team *team) |
2846 | { | |
2847 | struct team_port *port; | |
2848 | bool team_linkup; | |
2849 | ||
e185483e FL |
2850 | if (team->user_carrier_enabled) |
2851 | return; | |
2852 | ||
06a7fc42 FL |
2853 | team_linkup = false; |
2854 | list_for_each_entry(port, &team->port_list, list) { | |
2855 | if (port->linkup) { | |
2856 | team_linkup = true; | |
2857 | break; | |
2858 | } | |
2859 | } | |
2860 | ||
2861 | if (team_linkup) | |
2862 | netif_carrier_on(team->dev); | |
2863 | else | |
2864 | netif_carrier_off(team->dev); | |
2865 | } | |
2866 | ||
10f3f51d JP |
2867 | static void __team_port_change_check(struct team_port *port, bool linkup) |
2868 | { | |
2869 | if (port->state.linkup != linkup) | |
2870 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2871 | __team_carrier_check(port->team); |
10f3f51d JP |
2872 | } |
2873 | ||
2874 | static void __team_port_change_port_added(struct team_port *port, bool linkup) | |
2875 | { | |
2876 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2877 | __team_carrier_check(port->team); |
10f3f51d JP |
2878 | } |
2879 | ||
2880 | static void __team_port_change_port_removed(struct team_port *port) | |
2881 | { | |
2882 | port->removed = true; | |
2883 | __team_port_change_send(port, false); | |
06a7fc42 | 2884 | __team_carrier_check(port->team); |
10f3f51d JP |
2885 | } |
2886 | ||
3d249d4c JP |
2887 | static void team_port_change_check(struct team_port *port, bool linkup) |
2888 | { | |
2889 | struct team *team = port->team; | |
2890 | ||
61dc3461 | 2891 | mutex_lock(&team->lock); |
3d249d4c | 2892 | __team_port_change_check(port, linkup); |
61dc3461 | 2893 | mutex_unlock(&team->lock); |
3d249d4c JP |
2894 | } |
2895 | ||
0f1aad2b | 2896 | |
3d249d4c JP |
2897 | /************************************ |
2898 | * Net device notifier event handler | |
2899 | ************************************/ | |
2900 | ||
2901 | static int team_device_event(struct notifier_block *unused, | |
2902 | unsigned long event, void *ptr) | |
2903 | { | |
351638e7 | 2904 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
3d249d4c JP |
2905 | struct team_port *port; |
2906 | ||
2907 | port = team_port_get_rtnl(dev); | |
2908 | if (!port) | |
2909 | return NOTIFY_DONE; | |
2910 | ||
2911 | switch (event) { | |
2912 | case NETDEV_UP: | |
2913 | if (netif_carrier_ok(dev)) | |
2914 | team_port_change_check(port, true); | |
ed2da03c | 2915 | break; |
3d249d4c JP |
2916 | case NETDEV_DOWN: |
2917 | team_port_change_check(port, false); | |
ed2da03c | 2918 | break; |
3d249d4c JP |
2919 | case NETDEV_CHANGE: |
2920 | if (netif_running(port->dev)) | |
2921 | team_port_change_check(port, | |
2922 | !!netif_carrier_ok(port->dev)); | |
2923 | break; | |
2924 | case NETDEV_UNREGISTER: | |
2925 | team_del_slave(port->team->dev, dev); | |
2926 | break; | |
2927 | case NETDEV_FEAT_CHANGE: | |
2928 | team_compute_features(port->team); | |
2929 | break; | |
b01f236c | 2930 | case NETDEV_PRECHANGEMTU: |
3d249d4c | 2931 | /* Forbid to change mtu of underlaying device */ |
9d0d68fa JP |
2932 | if (!port->team->port_mtu_change_allowed) |
2933 | return NOTIFY_BAD; | |
2934 | break; | |
3d249d4c JP |
2935 | case NETDEV_PRE_TYPE_CHANGE: |
2936 | /* Forbid to change type of underlaying device */ | |
2937 | return NOTIFY_BAD; | |
4aa5dee4 JP |
2938 | case NETDEV_RESEND_IGMP: |
2939 | /* Propagate to master device */ | |
2940 | call_netdevice_notifiers(event, port->team->dev); | |
2941 | break; | |
3d249d4c JP |
2942 | } |
2943 | return NOTIFY_DONE; | |
2944 | } | |
2945 | ||
2946 | static struct notifier_block team_notifier_block __read_mostly = { | |
2947 | .notifier_call = team_device_event, | |
2948 | }; | |
2949 | ||
2950 | ||
2951 | /*********************** | |
2952 | * Module init and exit | |
2953 | ***********************/ | |
2954 | ||
2955 | static int __init team_module_init(void) | |
2956 | { | |
2957 | int err; | |
2958 | ||
2959 | register_netdevice_notifier(&team_notifier_block); | |
2960 | ||
2961 | err = rtnl_link_register(&team_link_ops); | |
2962 | if (err) | |
2963 | goto err_rtnl_reg; | |
2964 | ||
2965 | err = team_nl_init(); | |
2966 | if (err) | |
2967 | goto err_nl_init; | |
2968 | ||
2969 | return 0; | |
2970 | ||
2971 | err_nl_init: | |
2972 | rtnl_link_unregister(&team_link_ops); | |
2973 | ||
2974 | err_rtnl_reg: | |
2975 | unregister_netdevice_notifier(&team_notifier_block); | |
2976 | ||
2977 | return err; | |
2978 | } | |
2979 | ||
2980 | static void __exit team_module_exit(void) | |
2981 | { | |
2982 | team_nl_fini(); | |
2983 | rtnl_link_unregister(&team_link_ops); | |
2984 | unregister_netdevice_notifier(&team_notifier_block); | |
2985 | } | |
2986 | ||
2987 | module_init(team_module_init); | |
2988 | module_exit(team_module_exit); | |
2989 | ||
2990 | MODULE_LICENSE("GPL v2"); | |
2991 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
2992 | MODULE_DESCRIPTION("Ethernet team device driver"); | |
2993 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |