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Commit | Line | Data |
---|---|---|
3d249d4c | 1 | /* |
0d572e45 | 2 | * drivers/net/team/team.c - Network team device driver |
3d249d4c JP |
3 | * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com> |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | */ | |
10 | ||
11 | #include <linux/kernel.h> | |
12 | #include <linux/types.h> | |
13 | #include <linux/module.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/slab.h> | |
16 | #include <linux/rcupdate.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/ctype.h> | |
19 | #include <linux/notifier.h> | |
20 | #include <linux/netdevice.h> | |
bd2d0837 | 21 | #include <linux/netpoll.h> |
87002b03 | 22 | #include <linux/if_vlan.h> |
3d249d4c JP |
23 | #include <linux/if_arp.h> |
24 | #include <linux/socket.h> | |
25 | #include <linux/etherdevice.h> | |
26 | #include <linux/rtnetlink.h> | |
27 | #include <net/rtnetlink.h> | |
28 | #include <net/genetlink.h> | |
29 | #include <net/netlink.h> | |
6c85f2bd | 30 | #include <net/sch_generic.h> |
7f51c587 | 31 | #include <generated/utsrelease.h> |
3d249d4c JP |
32 | #include <linux/if_team.h> |
33 | ||
34 | #define DRV_NAME "team" | |
35 | ||
36 | ||
37 | /********** | |
38 | * Helpers | |
39 | **********/ | |
40 | ||
3d249d4c JP |
41 | static struct team_port *team_port_get_rtnl(const struct net_device *dev) |
42 | { | |
43 | struct team_port *port = rtnl_dereference(dev->rx_handler_data); | |
44 | ||
acb10eac | 45 | return netif_is_team_port(dev) ? port : NULL; |
3d249d4c JP |
46 | } |
47 | ||
48 | /* | |
1d76efe1 | 49 | * Since the ability to change device address for open port device is tested in |
3d249d4c JP |
50 | * team_port_add, this function can be called without control of return value |
51 | */ | |
1d76efe1 JP |
52 | static int __set_port_dev_addr(struct net_device *port_dev, |
53 | const unsigned char *dev_addr) | |
3d249d4c | 54 | { |
996f6e12 | 55 | struct sockaddr_storage addr; |
3d249d4c | 56 | |
996f6e12 WC |
57 | memcpy(addr.__data, dev_addr, port_dev->addr_len); |
58 | addr.ss_family = port_dev->type; | |
3a37a963 | 59 | return dev_set_mac_address(port_dev, (struct sockaddr *)&addr, NULL); |
3d249d4c JP |
60 | } |
61 | ||
1d76efe1 | 62 | static int team_port_set_orig_dev_addr(struct team_port *port) |
3d249d4c | 63 | { |
1d76efe1 | 64 | return __set_port_dev_addr(port->dev, port->orig.dev_addr); |
3d249d4c JP |
65 | } |
66 | ||
acbba0d0 JP |
67 | static int team_port_set_team_dev_addr(struct team *team, |
68 | struct team_port *port) | |
3d249d4c | 69 | { |
acbba0d0 | 70 | return __set_port_dev_addr(port->dev, team->dev->dev_addr); |
3d249d4c | 71 | } |
acbba0d0 JP |
72 | |
73 | int team_modeop_port_enter(struct team *team, struct team_port *port) | |
74 | { | |
75 | return team_port_set_team_dev_addr(team, port); | |
76 | } | |
77 | EXPORT_SYMBOL(team_modeop_port_enter); | |
78 | ||
79 | void team_modeop_port_change_dev_addr(struct team *team, | |
80 | struct team_port *port) | |
81 | { | |
82 | team_port_set_team_dev_addr(team, port); | |
83 | } | |
84 | EXPORT_SYMBOL(team_modeop_port_change_dev_addr); | |
3d249d4c | 85 | |
3a0d6c5a JP |
86 | static void team_lower_state_changed(struct team_port *port) |
87 | { | |
88 | struct netdev_lag_lower_state_info info; | |
89 | ||
90 | info.link_up = port->linkup; | |
91 | info.tx_enabled = team_port_enabled(port); | |
92 | netdev_lower_state_changed(port->dev, &info); | |
93 | } | |
94 | ||
71472ec1 JP |
95 | static void team_refresh_port_linkup(struct team_port *port) |
96 | { | |
3a0d6c5a JP |
97 | bool new_linkup = port->user.linkup_enabled ? port->user.linkup : |
98 | port->state.linkup; | |
99 | ||
100 | if (port->linkup != new_linkup) { | |
101 | port->linkup = new_linkup; | |
102 | team_lower_state_changed(port); | |
103 | } | |
71472ec1 | 104 | } |
3d249d4c | 105 | |
0f1aad2b | 106 | |
3d249d4c JP |
107 | /******************* |
108 | * Options handling | |
109 | *******************/ | |
110 | ||
80f7c668 JP |
111 | struct team_option_inst { /* One for each option instance */ |
112 | struct list_head list; | |
01048d9a | 113 | struct list_head tmp_list; |
80f7c668 | 114 | struct team_option *option; |
85d59a87 | 115 | struct team_option_inst_info info; |
80f7c668 JP |
116 | bool changed; |
117 | bool removed; | |
118 | }; | |
119 | ||
120 | static struct team_option *__team_find_option(struct team *team, | |
121 | const char *opt_name) | |
358b8382 JP |
122 | { |
123 | struct team_option *option; | |
124 | ||
125 | list_for_each_entry(option, &team->option_list, list) { | |
126 | if (strcmp(option->name, opt_name) == 0) | |
127 | return option; | |
128 | } | |
129 | return NULL; | |
130 | } | |
131 | ||
80f7c668 JP |
132 | static void __team_option_inst_del(struct team_option_inst *opt_inst) |
133 | { | |
134 | list_del(&opt_inst->list); | |
135 | kfree(opt_inst); | |
136 | } | |
137 | ||
138 | static void __team_option_inst_del_option(struct team *team, | |
139 | struct team_option *option) | |
140 | { | |
141 | struct team_option_inst *opt_inst, *tmp; | |
142 | ||
143 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
144 | if (opt_inst->option == option) | |
145 | __team_option_inst_del(opt_inst); | |
146 | } | |
147 | } | |
148 | ||
b1303326 JP |
149 | static int __team_option_inst_add(struct team *team, struct team_option *option, |
150 | struct team_port *port) | |
151 | { | |
152 | struct team_option_inst *opt_inst; | |
153 | unsigned int array_size; | |
154 | unsigned int i; | |
85d59a87 | 155 | int err; |
b1303326 JP |
156 | |
157 | array_size = option->array_size; | |
158 | if (!array_size) | |
159 | array_size = 1; /* No array but still need one instance */ | |
160 | ||
161 | for (i = 0; i < array_size; i++) { | |
162 | opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL); | |
163 | if (!opt_inst) | |
164 | return -ENOMEM; | |
165 | opt_inst->option = option; | |
85d59a87 JP |
166 | opt_inst->info.port = port; |
167 | opt_inst->info.array_index = i; | |
b1303326 JP |
168 | opt_inst->changed = true; |
169 | opt_inst->removed = false; | |
170 | list_add_tail(&opt_inst->list, &team->option_inst_list); | |
85d59a87 JP |
171 | if (option->init) { |
172 | err = option->init(team, &opt_inst->info); | |
173 | if (err) | |
174 | return err; | |
175 | } | |
176 | ||
b1303326 JP |
177 | } |
178 | return 0; | |
179 | } | |
180 | ||
80f7c668 JP |
181 | static int __team_option_inst_add_option(struct team *team, |
182 | struct team_option *option) | |
183 | { | |
80f7c668 JP |
184 | int err; |
185 | ||
b1303326 | 186 | if (!option->per_port) { |
f88725ff | 187 | err = __team_option_inst_add(team, option, NULL); |
b1303326 JP |
188 | if (err) |
189 | goto inst_del_option; | |
190 | } | |
80f7c668 JP |
191 | return 0; |
192 | ||
193 | inst_del_option: | |
194 | __team_option_inst_del_option(team, option); | |
195 | return err; | |
196 | } | |
197 | ||
198 | static void __team_option_inst_mark_removed_option(struct team *team, | |
199 | struct team_option *option) | |
200 | { | |
201 | struct team_option_inst *opt_inst; | |
202 | ||
203 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
204 | if (opt_inst->option == option) { | |
205 | opt_inst->changed = true; | |
206 | opt_inst->removed = true; | |
207 | } | |
208 | } | |
209 | } | |
210 | ||
211 | static void __team_option_inst_del_port(struct team *team, | |
212 | struct team_port *port) | |
213 | { | |
214 | struct team_option_inst *opt_inst, *tmp; | |
215 | ||
216 | list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) { | |
217 | if (opt_inst->option->per_port && | |
85d59a87 | 218 | opt_inst->info.port == port) |
80f7c668 JP |
219 | __team_option_inst_del(opt_inst); |
220 | } | |
221 | } | |
222 | ||
223 | static int __team_option_inst_add_port(struct team *team, | |
224 | struct team_port *port) | |
225 | { | |
226 | struct team_option *option; | |
227 | int err; | |
228 | ||
229 | list_for_each_entry(option, &team->option_list, list) { | |
230 | if (!option->per_port) | |
231 | continue; | |
232 | err = __team_option_inst_add(team, option, port); | |
233 | if (err) | |
234 | goto inst_del_port; | |
235 | } | |
236 | return 0; | |
237 | ||
238 | inst_del_port: | |
239 | __team_option_inst_del_port(team, port); | |
240 | return err; | |
241 | } | |
242 | ||
243 | static void __team_option_inst_mark_removed_port(struct team *team, | |
244 | struct team_port *port) | |
245 | { | |
246 | struct team_option_inst *opt_inst; | |
247 | ||
248 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
85d59a87 | 249 | if (opt_inst->info.port == port) { |
80f7c668 JP |
250 | opt_inst->changed = true; |
251 | opt_inst->removed = true; | |
252 | } | |
253 | } | |
254 | } | |
255 | ||
256 | static int __team_options_register(struct team *team, | |
257 | const struct team_option *option, | |
258 | size_t option_count) | |
3d249d4c JP |
259 | { |
260 | int i; | |
2bba19ff | 261 | struct team_option **dst_opts; |
358b8382 | 262 | int err; |
3d249d4c | 263 | |
6396bb22 | 264 | dst_opts = kcalloc(option_count, sizeof(struct team_option *), |
2bba19ff JP |
265 | GFP_KERNEL); |
266 | if (!dst_opts) | |
267 | return -ENOMEM; | |
358b8382 | 268 | for (i = 0; i < option_count; i++, option++) { |
358b8382 JP |
269 | if (__team_find_option(team, option->name)) { |
270 | err = -EEXIST; | |
80f7c668 | 271 | goto alloc_rollback; |
358b8382 | 272 | } |
f8a15af0 JP |
273 | dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL); |
274 | if (!dst_opts[i]) { | |
358b8382 | 275 | err = -ENOMEM; |
80f7c668 | 276 | goto alloc_rollback; |
358b8382 | 277 | } |
358b8382 JP |
278 | } |
279 | ||
b82b9183 | 280 | for (i = 0; i < option_count; i++) { |
80f7c668 JP |
281 | err = __team_option_inst_add_option(team, dst_opts[i]); |
282 | if (err) | |
283 | goto inst_rollback; | |
358b8382 | 284 | list_add_tail(&dst_opts[i]->list, &team->option_list); |
b82b9183 | 285 | } |
358b8382 | 286 | |
2bba19ff | 287 | kfree(dst_opts); |
358b8382 JP |
288 | return 0; |
289 | ||
80f7c668 JP |
290 | inst_rollback: |
291 | for (i--; i >= 0; i--) | |
292 | __team_option_inst_del_option(team, dst_opts[i]); | |
293 | ||
294 | i = option_count - 1; | |
295 | alloc_rollback: | |
296 | for (i--; i >= 0; i--) | |
358b8382 JP |
297 | kfree(dst_opts[i]); |
298 | ||
2bba19ff | 299 | kfree(dst_opts); |
358b8382 | 300 | return err; |
3d249d4c | 301 | } |
358b8382 | 302 | |
b82b9183 JP |
303 | static void __team_options_mark_removed(struct team *team, |
304 | const struct team_option *option, | |
305 | size_t option_count) | |
306 | { | |
307 | int i; | |
308 | ||
309 | for (i = 0; i < option_count; i++, option++) { | |
310 | struct team_option *del_opt; | |
3d249d4c | 311 | |
b82b9183 | 312 | del_opt = __team_find_option(team, option->name); |
80f7c668 JP |
313 | if (del_opt) |
314 | __team_option_inst_mark_removed_option(team, del_opt); | |
b82b9183 JP |
315 | } |
316 | } | |
3d249d4c JP |
317 | |
318 | static void __team_options_unregister(struct team *team, | |
358b8382 | 319 | const struct team_option *option, |
3d249d4c JP |
320 | size_t option_count) |
321 | { | |
322 | int i; | |
323 | ||
358b8382 JP |
324 | for (i = 0; i < option_count; i++, option++) { |
325 | struct team_option *del_opt; | |
326 | ||
327 | del_opt = __team_find_option(team, option->name); | |
328 | if (del_opt) { | |
80f7c668 | 329 | __team_option_inst_del_option(team, del_opt); |
358b8382 JP |
330 | list_del(&del_opt->list); |
331 | kfree(del_opt); | |
332 | } | |
333 | } | |
3d249d4c JP |
334 | } |
335 | ||
b82b9183 JP |
336 | static void __team_options_change_check(struct team *team); |
337 | ||
338 | int team_options_register(struct team *team, | |
339 | const struct team_option *option, | |
340 | size_t option_count) | |
341 | { | |
342 | int err; | |
343 | ||
344 | err = __team_options_register(team, option, option_count); | |
345 | if (err) | |
346 | return err; | |
347 | __team_options_change_check(team); | |
348 | return 0; | |
349 | } | |
350 | EXPORT_SYMBOL(team_options_register); | |
351 | ||
358b8382 JP |
352 | void team_options_unregister(struct team *team, |
353 | const struct team_option *option, | |
3d249d4c JP |
354 | size_t option_count) |
355 | { | |
b82b9183 JP |
356 | __team_options_mark_removed(team, option, option_count); |
357 | __team_options_change_check(team); | |
3d249d4c | 358 | __team_options_unregister(team, option, option_count); |
3d249d4c JP |
359 | } |
360 | EXPORT_SYMBOL(team_options_unregister); | |
361 | ||
80f7c668 JP |
362 | static int team_option_get(struct team *team, |
363 | struct team_option_inst *opt_inst, | |
364 | struct team_gsetter_ctx *ctx) | |
365 | { | |
f82b959d JP |
366 | if (!opt_inst->option->getter) |
367 | return -EOPNOTSUPP; | |
80f7c668 JP |
368 | return opt_inst->option->getter(team, ctx); |
369 | } | |
370 | ||
371 | static int team_option_set(struct team *team, | |
372 | struct team_option_inst *opt_inst, | |
373 | struct team_gsetter_ctx *ctx) | |
3d249d4c | 374 | { |
f82b959d JP |
375 | if (!opt_inst->option->setter) |
376 | return -EOPNOTSUPP; | |
2fcdb2c9 | 377 | return opt_inst->option->setter(team, ctx); |
3d249d4c JP |
378 | } |
379 | ||
0f1aad2b JP |
380 | void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info) |
381 | { | |
382 | struct team_option_inst *opt_inst; | |
383 | ||
384 | opt_inst = container_of(opt_inst_info, struct team_option_inst, info); | |
385 | opt_inst->changed = true; | |
386 | } | |
387 | EXPORT_SYMBOL(team_option_inst_set_change); | |
388 | ||
389 | void team_options_change_check(struct team *team) | |
390 | { | |
391 | __team_options_change_check(team); | |
392 | } | |
393 | EXPORT_SYMBOL(team_options_change_check); | |
394 | ||
395 | ||
3d249d4c JP |
396 | /**************** |
397 | * Mode handling | |
398 | ****************/ | |
399 | ||
400 | static LIST_HEAD(mode_list); | |
401 | static DEFINE_SPINLOCK(mode_list_lock); | |
402 | ||
0402788a JP |
403 | struct team_mode_item { |
404 | struct list_head list; | |
405 | const struct team_mode *mode; | |
406 | }; | |
407 | ||
408 | static struct team_mode_item *__find_mode(const char *kind) | |
3d249d4c | 409 | { |
0402788a | 410 | struct team_mode_item *mitem; |
3d249d4c | 411 | |
0402788a JP |
412 | list_for_each_entry(mitem, &mode_list, list) { |
413 | if (strcmp(mitem->mode->kind, kind) == 0) | |
414 | return mitem; | |
3d249d4c JP |
415 | } |
416 | return NULL; | |
417 | } | |
418 | ||
419 | static bool is_good_mode_name(const char *name) | |
420 | { | |
421 | while (*name != '\0') { | |
422 | if (!isalpha(*name) && !isdigit(*name) && *name != '_') | |
423 | return false; | |
424 | name++; | |
425 | } | |
426 | return true; | |
427 | } | |
428 | ||
0402788a | 429 | int team_mode_register(const struct team_mode *mode) |
3d249d4c JP |
430 | { |
431 | int err = 0; | |
0402788a | 432 | struct team_mode_item *mitem; |
3d249d4c JP |
433 | |
434 | if (!is_good_mode_name(mode->kind) || | |
435 | mode->priv_size > TEAM_MODE_PRIV_SIZE) | |
436 | return -EINVAL; | |
0402788a JP |
437 | |
438 | mitem = kmalloc(sizeof(*mitem), GFP_KERNEL); | |
439 | if (!mitem) | |
440 | return -ENOMEM; | |
441 | ||
3d249d4c JP |
442 | spin_lock(&mode_list_lock); |
443 | if (__find_mode(mode->kind)) { | |
444 | err = -EEXIST; | |
0402788a | 445 | kfree(mitem); |
3d249d4c JP |
446 | goto unlock; |
447 | } | |
0402788a JP |
448 | mitem->mode = mode; |
449 | list_add_tail(&mitem->list, &mode_list); | |
3d249d4c JP |
450 | unlock: |
451 | spin_unlock(&mode_list_lock); | |
452 | return err; | |
453 | } | |
454 | EXPORT_SYMBOL(team_mode_register); | |
455 | ||
0402788a | 456 | void team_mode_unregister(const struct team_mode *mode) |
3d249d4c | 457 | { |
0402788a JP |
458 | struct team_mode_item *mitem; |
459 | ||
3d249d4c | 460 | spin_lock(&mode_list_lock); |
0402788a JP |
461 | mitem = __find_mode(mode->kind); |
462 | if (mitem) { | |
463 | list_del_init(&mitem->list); | |
464 | kfree(mitem); | |
465 | } | |
3d249d4c | 466 | spin_unlock(&mode_list_lock); |
3d249d4c JP |
467 | } |
468 | EXPORT_SYMBOL(team_mode_unregister); | |
469 | ||
0402788a | 470 | static const struct team_mode *team_mode_get(const char *kind) |
3d249d4c | 471 | { |
0402788a JP |
472 | struct team_mode_item *mitem; |
473 | const struct team_mode *mode = NULL; | |
3d249d4c JP |
474 | |
475 | spin_lock(&mode_list_lock); | |
0402788a JP |
476 | mitem = __find_mode(kind); |
477 | if (!mitem) { | |
3d249d4c JP |
478 | spin_unlock(&mode_list_lock); |
479 | request_module("team-mode-%s", kind); | |
480 | spin_lock(&mode_list_lock); | |
0402788a | 481 | mitem = __find_mode(kind); |
3d249d4c | 482 | } |
0402788a JP |
483 | if (mitem) { |
484 | mode = mitem->mode; | |
3d249d4c JP |
485 | if (!try_module_get(mode->owner)) |
486 | mode = NULL; | |
0402788a | 487 | } |
3d249d4c JP |
488 | |
489 | spin_unlock(&mode_list_lock); | |
490 | return mode; | |
491 | } | |
492 | ||
493 | static void team_mode_put(const struct team_mode *mode) | |
494 | { | |
495 | module_put(mode->owner); | |
496 | } | |
497 | ||
498 | static bool team_dummy_transmit(struct team *team, struct sk_buff *skb) | |
499 | { | |
500 | dev_kfree_skb_any(skb); | |
501 | return false; | |
502 | } | |
503 | ||
2ea46599 | 504 | static rx_handler_result_t team_dummy_receive(struct team *team, |
505 | struct team_port *port, | |
506 | struct sk_buff *skb) | |
3d249d4c JP |
507 | { |
508 | return RX_HANDLER_ANOTHER; | |
509 | } | |
510 | ||
d299cd51 JP |
511 | static const struct team_mode __team_no_mode = { |
512 | .kind = "*NOMODE*", | |
513 | }; | |
514 | ||
515 | static bool team_is_mode_set(struct team *team) | |
516 | { | |
517 | return team->mode != &__team_no_mode; | |
518 | } | |
519 | ||
520 | static void team_set_no_mode(struct team *team) | |
521 | { | |
e185483e | 522 | team->user_carrier_enabled = false; |
d299cd51 JP |
523 | team->mode = &__team_no_mode; |
524 | } | |
525 | ||
735d381f | 526 | static void team_adjust_ops(struct team *team) |
3d249d4c JP |
527 | { |
528 | /* | |
529 | * To avoid checks in rx/tx skb paths, ensure here that non-null and | |
530 | * correct ops are always set. | |
531 | */ | |
532 | ||
735d381f | 533 | if (!team->en_port_count || !team_is_mode_set(team) || |
122bb046 | 534 | !team->mode->ops->transmit) |
3d249d4c JP |
535 | team->ops.transmit = team_dummy_transmit; |
536 | else | |
537 | team->ops.transmit = team->mode->ops->transmit; | |
538 | ||
735d381f | 539 | if (!team->en_port_count || !team_is_mode_set(team) || |
122bb046 | 540 | !team->mode->ops->receive) |
3d249d4c JP |
541 | team->ops.receive = team_dummy_receive; |
542 | else | |
543 | team->ops.receive = team->mode->ops->receive; | |
544 | } | |
545 | ||
546 | /* | |
547 | * We can benefit from the fact that it's ensured no port is present | |
548 | * at the time of mode change. Therefore no packets are in fly so there's no | |
549 | * need to set mode operations in any special way. | |
550 | */ | |
551 | static int __team_change_mode(struct team *team, | |
552 | const struct team_mode *new_mode) | |
553 | { | |
554 | /* Check if mode was previously set and do cleanup if so */ | |
d299cd51 | 555 | if (team_is_mode_set(team)) { |
3d249d4c JP |
556 | void (*exit_op)(struct team *team) = team->ops.exit; |
557 | ||
558 | /* Clear ops area so no callback is called any longer */ | |
559 | memset(&team->ops, 0, sizeof(struct team_mode_ops)); | |
560 | team_adjust_ops(team); | |
561 | ||
562 | if (exit_op) | |
563 | exit_op(team); | |
564 | team_mode_put(team->mode); | |
d299cd51 | 565 | team_set_no_mode(team); |
3d249d4c JP |
566 | /* zero private data area */ |
567 | memset(&team->mode_priv, 0, | |
568 | sizeof(struct team) - offsetof(struct team, mode_priv)); | |
569 | } | |
570 | ||
571 | if (!new_mode) | |
572 | return 0; | |
573 | ||
574 | if (new_mode->ops->init) { | |
575 | int err; | |
576 | ||
577 | err = new_mode->ops->init(team); | |
578 | if (err) | |
579 | return err; | |
580 | } | |
581 | ||
582 | team->mode = new_mode; | |
583 | memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops)); | |
584 | team_adjust_ops(team); | |
585 | ||
586 | return 0; | |
587 | } | |
588 | ||
589 | static int team_change_mode(struct team *team, const char *kind) | |
590 | { | |
0402788a | 591 | const struct team_mode *new_mode; |
3d249d4c JP |
592 | struct net_device *dev = team->dev; |
593 | int err; | |
594 | ||
595 | if (!list_empty(&team->port_list)) { | |
596 | netdev_err(dev, "No ports can be present during mode change\n"); | |
597 | return -EBUSY; | |
598 | } | |
599 | ||
d299cd51 | 600 | if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) { |
3d249d4c JP |
601 | netdev_err(dev, "Unable to change to the same mode the team is in\n"); |
602 | return -EINVAL; | |
603 | } | |
604 | ||
605 | new_mode = team_mode_get(kind); | |
606 | if (!new_mode) { | |
607 | netdev_err(dev, "Mode \"%s\" not found\n", kind); | |
608 | return -EINVAL; | |
609 | } | |
610 | ||
611 | err = __team_change_mode(team, new_mode); | |
612 | if (err) { | |
613 | netdev_err(dev, "Failed to change to mode \"%s\"\n", kind); | |
614 | team_mode_put(new_mode); | |
615 | return err; | |
616 | } | |
617 | ||
618 | netdev_info(dev, "Mode changed to \"%s\"\n", kind); | |
619 | return 0; | |
620 | } | |
621 | ||
622 | ||
fc423ff0 JP |
623 | /********************* |
624 | * Peers notification | |
625 | *********************/ | |
626 | ||
627 | static void team_notify_peers_work(struct work_struct *work) | |
628 | { | |
629 | struct team *team; | |
b0d11b42 | 630 | int val; |
fc423ff0 JP |
631 | |
632 | team = container_of(work, struct team, notify_peers.dw.work); | |
633 | ||
634 | if (!rtnl_trylock()) { | |
635 | schedule_delayed_work(&team->notify_peers.dw, 0); | |
636 | return; | |
637 | } | |
b0d11b42 JP |
638 | val = atomic_dec_if_positive(&team->notify_peers.count_pending); |
639 | if (val < 0) { | |
640 | rtnl_unlock(); | |
641 | return; | |
642 | } | |
fc423ff0 JP |
643 | call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev); |
644 | rtnl_unlock(); | |
b0d11b42 | 645 | if (val) |
fc423ff0 JP |
646 | schedule_delayed_work(&team->notify_peers.dw, |
647 | msecs_to_jiffies(team->notify_peers.interval)); | |
648 | } | |
649 | ||
650 | static void team_notify_peers(struct team *team) | |
651 | { | |
652 | if (!team->notify_peers.count || !netif_running(team->dev)) | |
653 | return; | |
47549650 | 654 | atomic_add(team->notify_peers.count, &team->notify_peers.count_pending); |
fc423ff0 JP |
655 | schedule_delayed_work(&team->notify_peers.dw, 0); |
656 | } | |
657 | ||
658 | static void team_notify_peers_init(struct team *team) | |
659 | { | |
660 | INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work); | |
661 | } | |
662 | ||
663 | static void team_notify_peers_fini(struct team *team) | |
664 | { | |
665 | cancel_delayed_work_sync(&team->notify_peers.dw); | |
666 | } | |
667 | ||
668 | ||
492b200e JP |
669 | /******************************* |
670 | * Send multicast group rejoins | |
671 | *******************************/ | |
672 | ||
673 | static void team_mcast_rejoin_work(struct work_struct *work) | |
674 | { | |
675 | struct team *team; | |
b0d11b42 | 676 | int val; |
492b200e JP |
677 | |
678 | team = container_of(work, struct team, mcast_rejoin.dw.work); | |
679 | ||
680 | if (!rtnl_trylock()) { | |
681 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); | |
682 | return; | |
683 | } | |
b0d11b42 JP |
684 | val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending); |
685 | if (val < 0) { | |
686 | rtnl_unlock(); | |
687 | return; | |
688 | } | |
492b200e JP |
689 | call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev); |
690 | rtnl_unlock(); | |
b0d11b42 | 691 | if (val) |
492b200e JP |
692 | schedule_delayed_work(&team->mcast_rejoin.dw, |
693 | msecs_to_jiffies(team->mcast_rejoin.interval)); | |
694 | } | |
695 | ||
696 | static void team_mcast_rejoin(struct team *team) | |
697 | { | |
698 | if (!team->mcast_rejoin.count || !netif_running(team->dev)) | |
699 | return; | |
47549650 | 700 | atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending); |
492b200e JP |
701 | schedule_delayed_work(&team->mcast_rejoin.dw, 0); |
702 | } | |
703 | ||
704 | static void team_mcast_rejoin_init(struct team *team) | |
705 | { | |
706 | INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work); | |
707 | } | |
708 | ||
709 | static void team_mcast_rejoin_fini(struct team *team) | |
710 | { | |
711 | cancel_delayed_work_sync(&team->mcast_rejoin.dw); | |
712 | } | |
713 | ||
714 | ||
3d249d4c JP |
715 | /************************ |
716 | * Rx path frame handler | |
717 | ************************/ | |
718 | ||
719 | /* note: already called with rcu_read_lock */ | |
720 | static rx_handler_result_t team_handle_frame(struct sk_buff **pskb) | |
721 | { | |
722 | struct sk_buff *skb = *pskb; | |
723 | struct team_port *port; | |
724 | struct team *team; | |
725 | rx_handler_result_t res; | |
726 | ||
727 | skb = skb_share_check(skb, GFP_ATOMIC); | |
728 | if (!skb) | |
729 | return RX_HANDLER_CONSUMED; | |
730 | ||
731 | *pskb = skb; | |
732 | ||
733 | port = team_port_get_rcu(skb->dev); | |
734 | team = port->team; | |
19a0b58e JP |
735 | if (!team_port_enabled(port)) { |
736 | /* allow exact match delivery for disabled ports */ | |
737 | res = RX_HANDLER_EXACT; | |
738 | } else { | |
739 | res = team->ops.receive(team, port, skb); | |
740 | } | |
3d249d4c JP |
741 | if (res == RX_HANDLER_ANOTHER) { |
742 | struct team_pcpu_stats *pcpu_stats; | |
743 | ||
744 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
745 | u64_stats_update_begin(&pcpu_stats->syncp); | |
746 | pcpu_stats->rx_packets++; | |
747 | pcpu_stats->rx_bytes += skb->len; | |
748 | if (skb->pkt_type == PACKET_MULTICAST) | |
749 | pcpu_stats->rx_multicast++; | |
750 | u64_stats_update_end(&pcpu_stats->syncp); | |
751 | ||
752 | skb->dev = team->dev; | |
bb63daf9 JW |
753 | } else if (res == RX_HANDLER_EXACT) { |
754 | this_cpu_inc(team->pcpu_stats->rx_nohandler); | |
3d249d4c JP |
755 | } else { |
756 | this_cpu_inc(team->pcpu_stats->rx_dropped); | |
757 | } | |
758 | ||
759 | return res; | |
760 | } | |
761 | ||
762 | ||
8ff5105a JP |
763 | /************************************* |
764 | * Multiqueue Tx port select override | |
765 | *************************************/ | |
766 | ||
767 | static int team_queue_override_init(struct team *team) | |
768 | { | |
769 | struct list_head *listarr; | |
770 | unsigned int queue_cnt = team->dev->num_tx_queues - 1; | |
771 | unsigned int i; | |
772 | ||
773 | if (!queue_cnt) | |
774 | return 0; | |
6da2ec56 KC |
775 | listarr = kmalloc_array(queue_cnt, sizeof(struct list_head), |
776 | GFP_KERNEL); | |
8ff5105a JP |
777 | if (!listarr) |
778 | return -ENOMEM; | |
779 | team->qom_lists = listarr; | |
780 | for (i = 0; i < queue_cnt; i++) | |
781 | INIT_LIST_HEAD(listarr++); | |
782 | return 0; | |
783 | } | |
784 | ||
785 | static void team_queue_override_fini(struct team *team) | |
786 | { | |
787 | kfree(team->qom_lists); | |
788 | } | |
789 | ||
790 | static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id) | |
791 | { | |
792 | return &team->qom_lists[queue_id - 1]; | |
793 | } | |
794 | ||
795 | /* | |
796 | * note: already called with rcu_read_lock | |
797 | */ | |
798 | static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb) | |
799 | { | |
800 | struct list_head *qom_list; | |
801 | struct team_port *port; | |
802 | ||
803 | if (!team->queue_override_enabled || !skb->queue_mapping) | |
804 | return false; | |
805 | qom_list = __team_get_qom_list(team, skb->queue_mapping); | |
806 | list_for_each_entry_rcu(port, qom_list, qom_list) { | |
807 | if (!team_dev_queue_xmit(team, port, skb)) | |
808 | return true; | |
809 | } | |
810 | return false; | |
811 | } | |
812 | ||
813 | static void __team_queue_override_port_del(struct team *team, | |
814 | struct team_port *port) | |
815 | { | |
6c31ff36 JP |
816 | if (!port->queue_id) |
817 | return; | |
8ff5105a | 818 | list_del_rcu(&port->qom_list); |
8ff5105a JP |
819 | } |
820 | ||
821 | static bool team_queue_override_port_has_gt_prio_than(struct team_port *port, | |
822 | struct team_port *cur) | |
823 | { | |
824 | if (port->priority < cur->priority) | |
825 | return true; | |
826 | if (port->priority > cur->priority) | |
827 | return false; | |
828 | if (port->index < cur->index) | |
829 | return true; | |
830 | return false; | |
831 | } | |
832 | ||
833 | static void __team_queue_override_port_add(struct team *team, | |
834 | struct team_port *port) | |
835 | { | |
836 | struct team_port *cur; | |
837 | struct list_head *qom_list; | |
838 | struct list_head *node; | |
839 | ||
6c31ff36 | 840 | if (!port->queue_id) |
8ff5105a | 841 | return; |
8ff5105a JP |
842 | qom_list = __team_get_qom_list(team, port->queue_id); |
843 | node = qom_list; | |
844 | list_for_each_entry(cur, qom_list, qom_list) { | |
845 | if (team_queue_override_port_has_gt_prio_than(port, cur)) | |
846 | break; | |
847 | node = &cur->qom_list; | |
848 | } | |
849 | list_add_tail_rcu(&port->qom_list, node); | |
850 | } | |
851 | ||
852 | static void __team_queue_override_enabled_check(struct team *team) | |
853 | { | |
854 | struct team_port *port; | |
855 | bool enabled = false; | |
856 | ||
857 | list_for_each_entry(port, &team->port_list, list) { | |
6c31ff36 | 858 | if (port->queue_id) { |
8ff5105a JP |
859 | enabled = true; |
860 | break; | |
861 | } | |
862 | } | |
863 | if (enabled == team->queue_override_enabled) | |
864 | return; | |
865 | netdev_dbg(team->dev, "%s queue override\n", | |
866 | enabled ? "Enabling" : "Disabling"); | |
867 | team->queue_override_enabled = enabled; | |
868 | } | |
869 | ||
6c31ff36 JP |
870 | static void team_queue_override_port_prio_changed(struct team *team, |
871 | struct team_port *port) | |
8ff5105a | 872 | { |
6c31ff36 JP |
873 | if (!port->queue_id || team_port_enabled(port)) |
874 | return; | |
8ff5105a JP |
875 | __team_queue_override_port_del(team, port); |
876 | __team_queue_override_port_add(team, port); | |
877 | __team_queue_override_enabled_check(team); | |
878 | } | |
879 | ||
6c31ff36 JP |
880 | static void team_queue_override_port_change_queue_id(struct team *team, |
881 | struct team_port *port, | |
882 | u16 new_queue_id) | |
883 | { | |
884 | if (team_port_enabled(port)) { | |
885 | __team_queue_override_port_del(team, port); | |
886 | port->queue_id = new_queue_id; | |
887 | __team_queue_override_port_add(team, port); | |
888 | __team_queue_override_enabled_check(team); | |
889 | } else { | |
890 | port->queue_id = new_queue_id; | |
891 | } | |
892 | } | |
893 | ||
894 | static void team_queue_override_port_add(struct team *team, | |
895 | struct team_port *port) | |
896 | { | |
897 | __team_queue_override_port_add(team, port); | |
898 | __team_queue_override_enabled_check(team); | |
899 | } | |
900 | ||
901 | static void team_queue_override_port_del(struct team *team, | |
902 | struct team_port *port) | |
903 | { | |
904 | __team_queue_override_port_del(team, port); | |
905 | __team_queue_override_enabled_check(team); | |
906 | } | |
907 | ||
8ff5105a | 908 | |
3d249d4c JP |
909 | /**************** |
910 | * Port handling | |
911 | ****************/ | |
912 | ||
913 | static bool team_port_find(const struct team *team, | |
914 | const struct team_port *port) | |
915 | { | |
916 | struct team_port *cur; | |
917 | ||
918 | list_for_each_entry(cur, &team->port_list, list) | |
919 | if (cur == port) | |
920 | return true; | |
921 | return false; | |
922 | } | |
923 | ||
924 | /* | |
19a0b58e JP |
925 | * Enable/disable port by adding to enabled port hashlist and setting |
926 | * port->index (Might be racy so reader could see incorrect ifindex when | |
927 | * processing a flying packet, but that is not a problem). Write guarded | |
928 | * by team->lock. | |
3d249d4c | 929 | */ |
19a0b58e JP |
930 | static void team_port_enable(struct team *team, |
931 | struct team_port *port) | |
3d249d4c | 932 | { |
19a0b58e JP |
933 | if (team_port_enabled(port)) |
934 | return; | |
935 | port->index = team->en_port_count++; | |
3d249d4c JP |
936 | hlist_add_head_rcu(&port->hlist, |
937 | team_port_index_hash(team, port->index)); | |
122bb046 | 938 | team_adjust_ops(team); |
6c31ff36 | 939 | team_queue_override_port_add(team, port); |
4bccfd17 JP |
940 | if (team->ops.port_enabled) |
941 | team->ops.port_enabled(team, port); | |
fc423ff0 | 942 | team_notify_peers(team); |
492b200e | 943 | team_mcast_rejoin(team); |
3a0d6c5a | 944 | team_lower_state_changed(port); |
3d249d4c JP |
945 | } |
946 | ||
947 | static void __reconstruct_port_hlist(struct team *team, int rm_index) | |
948 | { | |
949 | int i; | |
950 | struct team_port *port; | |
951 | ||
19a0b58e | 952 | for (i = rm_index + 1; i < team->en_port_count; i++) { |
3d249d4c JP |
953 | port = team_get_port_by_index(team, i); |
954 | hlist_del_rcu(&port->hlist); | |
955 | port->index--; | |
956 | hlist_add_head_rcu(&port->hlist, | |
957 | team_port_index_hash(team, port->index)); | |
958 | } | |
959 | } | |
960 | ||
19a0b58e JP |
961 | static void team_port_disable(struct team *team, |
962 | struct team_port *port) | |
3d249d4c | 963 | { |
19a0b58e JP |
964 | if (!team_port_enabled(port)) |
965 | return; | |
4bccfd17 JP |
966 | if (team->ops.port_disabled) |
967 | team->ops.port_disabled(team, port); | |
3d249d4c | 968 | hlist_del_rcu(&port->hlist); |
122bb046 | 969 | __reconstruct_port_hlist(team, port->index); |
19a0b58e | 970 | port->index = -1; |
122bb046 | 971 | team->en_port_count--; |
735d381f JP |
972 | team_queue_override_port_del(team, port); |
973 | team_adjust_ops(team); | |
3a0d6c5a | 974 | team_lower_state_changed(port); |
3d249d4c JP |
975 | } |
976 | ||
a188222b | 977 | #define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ |
3d249d4c JP |
978 | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \ |
979 | NETIF_F_HIGHDMA | NETIF_F_LRO) | |
980 | ||
3268e5cb EBE |
981 | #define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \ |
982 | NETIF_F_RXCSUM | NETIF_F_ALL_TSO) | |
983 | ||
16cf72bb | 984 | static void __team_compute_features(struct team *team) |
3d249d4c JP |
985 | { |
986 | struct team_port *port; | |
25ea6654 DC |
987 | netdev_features_t vlan_features = TEAM_VLAN_FEATURES & |
988 | NETIF_F_ALL_FOR_ALL; | |
3268e5cb | 989 | netdev_features_t enc_features = TEAM_ENC_FEATURES; |
3d249d4c | 990 | unsigned short max_hard_header_len = ETH_HLEN; |
02875878 ED |
991 | unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE | |
992 | IFF_XMIT_DST_RELEASE_PERM; | |
3d249d4c JP |
993 | |
994 | list_for_each_entry(port, &team->port_list, list) { | |
995 | vlan_features = netdev_increment_features(vlan_features, | |
996 | port->dev->vlan_features, | |
997 | TEAM_VLAN_FEATURES); | |
3268e5cb EBE |
998 | enc_features = |
999 | netdev_increment_features(enc_features, | |
1000 | port->dev->hw_enc_features, | |
1001 | TEAM_ENC_FEATURES); | |
1002 | ||
3d249d4c | 1003 | |
dc905951 | 1004 | dst_release_flag &= port->dev->priv_flags; |
3d249d4c JP |
1005 | if (port->dev->hard_header_len > max_hard_header_len) |
1006 | max_hard_header_len = port->dev->hard_header_len; | |
1007 | } | |
1008 | ||
1009 | team->dev->vlan_features = vlan_features; | |
8eea1ca8 WB |
1010 | team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL | |
1011 | NETIF_F_GSO_UDP_L4; | |
3d249d4c JP |
1012 | team->dev->hard_header_len = max_hard_header_len; |
1013 | ||
02875878 ED |
1014 | team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE; |
1015 | if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM)) | |
1016 | team->dev->priv_flags |= IFF_XMIT_DST_RELEASE; | |
f6988cb6 | 1017 | } |
dc905951 | 1018 | |
3d249d4c JP |
1019 | static void team_compute_features(struct team *team) |
1020 | { | |
61dc3461 | 1021 | mutex_lock(&team->lock); |
16cf72bb | 1022 | __team_compute_features(team); |
61dc3461 | 1023 | mutex_unlock(&team->lock); |
f6988cb6 | 1024 | netdev_change_features(team->dev); |
3d249d4c JP |
1025 | } |
1026 | ||
1027 | static int team_port_enter(struct team *team, struct team_port *port) | |
1028 | { | |
1029 | int err = 0; | |
1030 | ||
1031 | dev_hold(team->dev); | |
3d249d4c JP |
1032 | if (team->ops.port_enter) { |
1033 | err = team->ops.port_enter(team, port); | |
1034 | if (err) { | |
1035 | netdev_err(team->dev, "Device %s failed to enter team mode\n", | |
1036 | port->dev->name); | |
1037 | goto err_port_enter; | |
1038 | } | |
1039 | } | |
1040 | ||
1041 | return 0; | |
1042 | ||
1043 | err_port_enter: | |
3d249d4c JP |
1044 | dev_put(team->dev); |
1045 | ||
1046 | return err; | |
1047 | } | |
1048 | ||
1049 | static void team_port_leave(struct team *team, struct team_port *port) | |
1050 | { | |
1051 | if (team->ops.port_leave) | |
1052 | team->ops.port_leave(team, port); | |
3d249d4c JP |
1053 | dev_put(team->dev); |
1054 | } | |
1055 | ||
bd2d0837 | 1056 | #ifdef CONFIG_NET_POLL_CONTROLLER |
9cf2f437 | 1057 | static int __team_port_enable_netpoll(struct team_port *port) |
bd2d0837 JP |
1058 | { |
1059 | struct netpoll *np; | |
1060 | int err; | |
1061 | ||
a8779ec1 | 1062 | np = kzalloc(sizeof(*np), GFP_KERNEL); |
bd2d0837 JP |
1063 | if (!np) |
1064 | return -ENOMEM; | |
1065 | ||
a8779ec1 | 1066 | err = __netpoll_setup(np, port->dev); |
bd2d0837 JP |
1067 | if (err) { |
1068 | kfree(np); | |
1069 | return err; | |
1070 | } | |
1071 | port->np = np; | |
1072 | return err; | |
1073 | } | |
1074 | ||
9cf2f437 XL |
1075 | static int team_port_enable_netpoll(struct team_port *port) |
1076 | { | |
1077 | if (!port->team->dev->npinfo) | |
1078 | return 0; | |
1079 | ||
1080 | return __team_port_enable_netpoll(port); | |
1081 | } | |
1082 | ||
bd2d0837 JP |
1083 | static void team_port_disable_netpoll(struct team_port *port) |
1084 | { | |
1085 | struct netpoll *np = port->np; | |
1086 | ||
1087 | if (!np) | |
1088 | return; | |
1089 | port->np = NULL; | |
1090 | ||
c9fbd71f | 1091 | __netpoll_free(np); |
bd2d0837 | 1092 | } |
bd2d0837 | 1093 | #else |
9cf2f437 | 1094 | static int team_port_enable_netpoll(struct team_port *port) |
bd2d0837 JP |
1095 | { |
1096 | return 0; | |
1097 | } | |
1098 | static void team_port_disable_netpoll(struct team_port *port) | |
1099 | { | |
1100 | } | |
bd2d0837 JP |
1101 | #endif |
1102 | ||
44d15d93 IS |
1103 | static int team_upper_dev_link(struct team *team, struct team_port *port, |
1104 | struct netlink_ext_ack *extack) | |
d7d3c051 | 1105 | { |
8fd72856 | 1106 | struct netdev_lag_upper_info lag_upper_info; |
d7d3c051 JP |
1107 | int err; |
1108 | ||
8fd72856 | 1109 | lag_upper_info.tx_type = team->mode->lag_tx_type; |
f44aa9ef | 1110 | lag_upper_info.hash_type = NETDEV_LAG_HASH_UNKNOWN; |
8fd72856 | 1111 | err = netdev_master_upper_dev_link(port->dev, team->dev, NULL, |
44d15d93 | 1112 | &lag_upper_info, extack); |
d7d3c051 JP |
1113 | if (err) |
1114 | return err; | |
8fd72856 | 1115 | port->dev->priv_flags |= IFF_TEAM_PORT; |
d7d3c051 JP |
1116 | return 0; |
1117 | } | |
1118 | ||
8fd72856 | 1119 | static void team_upper_dev_unlink(struct team *team, struct team_port *port) |
d7d3c051 | 1120 | { |
8fd72856 JP |
1121 | netdev_upper_dev_unlink(port->dev, team->dev); |
1122 | port->dev->priv_flags &= ~IFF_TEAM_PORT; | |
d7d3c051 JP |
1123 | } |
1124 | ||
10f3f51d | 1125 | static void __team_port_change_port_added(struct team_port *port, bool linkup); |
1d76efe1 JP |
1126 | static int team_dev_type_check_change(struct net_device *dev, |
1127 | struct net_device *port_dev); | |
3d249d4c | 1128 | |
44d15d93 IS |
1129 | static int team_port_add(struct team *team, struct net_device *port_dev, |
1130 | struct netlink_ext_ack *extack) | |
3d249d4c JP |
1131 | { |
1132 | struct net_device *dev = team->dev; | |
1133 | struct team_port *port; | |
1134 | char *portname = port_dev->name; | |
1135 | int err; | |
1136 | ||
1d76efe1 | 1137 | if (port_dev->flags & IFF_LOOPBACK) { |
44d15d93 | 1138 | NL_SET_ERR_MSG(extack, "Loopback device can't be added as a team port"); |
1d76efe1 | 1139 | netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n", |
3d249d4c JP |
1140 | portname); |
1141 | return -EINVAL; | |
1142 | } | |
1143 | ||
acb10eac | 1144 | if (netif_is_team_port(port_dev)) { |
44d15d93 | 1145 | NL_SET_ERR_MSG(extack, "Device is already a port of a team device"); |
3d249d4c JP |
1146 | netdev_err(dev, "Device %s is already a port " |
1147 | "of a team device\n", portname); | |
1148 | return -EBUSY; | |
1149 | } | |
1150 | ||
471b83bd IS |
1151 | if (dev == port_dev) { |
1152 | NL_SET_ERR_MSG(extack, "Cannot enslave team device to itself"); | |
1153 | netdev_err(dev, "Cannot enslave team device to itself\n"); | |
1154 | return -EINVAL; | |
1155 | } | |
1156 | ||
925b0c84 HL |
1157 | if (netdev_has_upper_dev(dev, port_dev)) { |
1158 | NL_SET_ERR_MSG(extack, "Device is already an upper device of the team interface"); | |
1159 | netdev_err(dev, "Device %s is already an upper device of the team interface\n", | |
1160 | portname); | |
1161 | return -EBUSY; | |
1162 | } | |
1163 | ||
2c33bb37 JP |
1164 | if (port_dev->features & NETIF_F_VLAN_CHALLENGED && |
1165 | vlan_uses_dev(dev)) { | |
44d15d93 | 1166 | NL_SET_ERR_MSG(extack, "Device is VLAN challenged and team device has VLAN set up"); |
2c33bb37 JP |
1167 | netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n", |
1168 | portname); | |
1169 | return -EPERM; | |
1170 | } | |
1171 | ||
1d76efe1 JP |
1172 | err = team_dev_type_check_change(dev, port_dev); |
1173 | if (err) | |
1174 | return err; | |
1175 | ||
3d249d4c | 1176 | if (port_dev->flags & IFF_UP) { |
44d15d93 | 1177 | NL_SET_ERR_MSG(extack, "Device is up. Set it down before adding it as a team port"); |
3d249d4c JP |
1178 | netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n", |
1179 | portname); | |
1180 | return -EBUSY; | |
1181 | } | |
1182 | ||
5149ee58 JP |
1183 | port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size, |
1184 | GFP_KERNEL); | |
3d249d4c JP |
1185 | if (!port) |
1186 | return -ENOMEM; | |
1187 | ||
1188 | port->dev = port_dev; | |
1189 | port->team = team; | |
8ff5105a | 1190 | INIT_LIST_HEAD(&port->qom_list); |
3d249d4c JP |
1191 | |
1192 | port->orig.mtu = port_dev->mtu; | |
1193 | err = dev_set_mtu(port_dev, dev->mtu); | |
1194 | if (err) { | |
1195 | netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err); | |
1196 | goto err_set_mtu; | |
1197 | } | |
1198 | ||
1d76efe1 | 1199 | memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len); |
3d249d4c JP |
1200 | |
1201 | err = team_port_enter(team, port); | |
1202 | if (err) { | |
1203 | netdev_err(dev, "Device %s failed to enter team mode\n", | |
1204 | portname); | |
1205 | goto err_port_enter; | |
1206 | } | |
1207 | ||
00f54e68 | 1208 | err = dev_open(port_dev, extack); |
3d249d4c JP |
1209 | if (err) { |
1210 | netdev_dbg(dev, "Device %s opening failed\n", | |
1211 | portname); | |
1212 | goto err_dev_open; | |
1213 | } | |
1214 | ||
57459185 JP |
1215 | err = vlan_vids_add_by_dev(port_dev, dev); |
1216 | if (err) { | |
1217 | netdev_err(dev, "Failed to add vlan ids to device %s\n", | |
1218 | portname); | |
1219 | goto err_vids_add; | |
1220 | } | |
1221 | ||
9cf2f437 | 1222 | err = team_port_enable_netpoll(port); |
0fb52a27 | 1223 | if (err) { |
1224 | netdev_err(dev, "Failed to enable netpoll on device %s\n", | |
1225 | portname); | |
1226 | goto err_enable_netpoll; | |
bd2d0837 JP |
1227 | } |
1228 | ||
fbe168ba MK |
1229 | if (!(dev->features & NETIF_F_LRO)) |
1230 | dev_disable_lro(port_dev); | |
1231 | ||
3d249d4c JP |
1232 | err = netdev_rx_handler_register(port_dev, team_handle_frame, |
1233 | port); | |
1234 | if (err) { | |
1235 | netdev_err(dev, "Device %s failed to register rx_handler\n", | |
1236 | portname); | |
1237 | goto err_handler_register; | |
1238 | } | |
1239 | ||
44d15d93 | 1240 | err = team_upper_dev_link(team, port, extack); |
d7d3c051 JP |
1241 | if (err) { |
1242 | netdev_err(dev, "Device %s failed to set upper link\n", | |
1243 | portname); | |
1244 | goto err_set_upper_link; | |
1245 | } | |
1246 | ||
35b384bd | 1247 | err = __team_option_inst_add_port(team, port); |
80f7c668 JP |
1248 | if (err) { |
1249 | netdev_err(dev, "Device %s failed to add per-port options\n", | |
1250 | portname); | |
1251 | goto err_option_port_add; | |
1252 | } | |
1253 | ||
43c2adb9 HL |
1254 | /* set promiscuity level to new slave */ |
1255 | if (dev->flags & IFF_PROMISC) { | |
1256 | err = dev_set_promiscuity(port_dev, 1); | |
1257 | if (err) | |
1258 | goto err_set_slave_promisc; | |
1259 | } | |
1260 | ||
1261 | /* set allmulti level to new slave */ | |
1262 | if (dev->flags & IFF_ALLMULTI) { | |
1263 | err = dev_set_allmulti(port_dev, 1); | |
1264 | if (err) { | |
1265 | if (dev->flags & IFF_PROMISC) | |
1266 | dev_set_promiscuity(port_dev, -1); | |
1267 | goto err_set_slave_promisc; | |
1268 | } | |
1269 | } | |
1270 | ||
982cf3b3 XL |
1271 | netif_addr_lock_bh(dev); |
1272 | dev_uc_sync_multiple(port_dev, dev); | |
1273 | dev_mc_sync_multiple(port_dev, dev); | |
1274 | netif_addr_unlock_bh(dev); | |
1275 | ||
19a0b58e | 1276 | port->index = -1; |
19a0b58e | 1277 | list_add_tail_rcu(&port->list, &team->port_list); |
72df935d | 1278 | team_port_enable(team, port); |
3d249d4c | 1279 | __team_compute_features(team); |
8c7a7726 | 1280 | __team_port_change_port_added(port, !!netif_oper_up(port_dev)); |
35b384bd | 1281 | __team_options_change_check(team); |
3d249d4c JP |
1282 | |
1283 | netdev_info(dev, "Port device %s added\n", portname); | |
1284 | ||
1285 | return 0; | |
1286 | ||
43c2adb9 HL |
1287 | err_set_slave_promisc: |
1288 | __team_option_inst_del_port(team, port); | |
1289 | ||
80f7c668 | 1290 | err_option_port_add: |
8fd72856 | 1291 | team_upper_dev_unlink(team, port); |
d7d3c051 JP |
1292 | |
1293 | err_set_upper_link: | |
80f7c668 JP |
1294 | netdev_rx_handler_unregister(port_dev); |
1295 | ||
3d249d4c | 1296 | err_handler_register: |
bd2d0837 JP |
1297 | team_port_disable_netpoll(port); |
1298 | ||
1299 | err_enable_netpoll: | |
57459185 JP |
1300 | vlan_vids_del_by_dev(port_dev, dev); |
1301 | ||
1302 | err_vids_add: | |
3d249d4c JP |
1303 | dev_close(port_dev); |
1304 | ||
1305 | err_dev_open: | |
1306 | team_port_leave(team, port); | |
1d76efe1 | 1307 | team_port_set_orig_dev_addr(port); |
3d249d4c JP |
1308 | |
1309 | err_port_enter: | |
1310 | dev_set_mtu(port_dev, port->orig.mtu); | |
1311 | ||
1312 | err_set_mtu: | |
1313 | kfree(port); | |
1314 | ||
1315 | return err; | |
1316 | } | |
1317 | ||
10f3f51d JP |
1318 | static void __team_port_change_port_removed(struct team_port *port); |
1319 | ||
3d249d4c JP |
1320 | static int team_port_del(struct team *team, struct net_device *port_dev) |
1321 | { | |
1322 | struct net_device *dev = team->dev; | |
1323 | struct team_port *port; | |
1324 | char *portname = port_dev->name; | |
1325 | ||
1326 | port = team_port_get_rtnl(port_dev); | |
1327 | if (!port || !team_port_find(team, port)) { | |
1328 | netdev_err(dev, "Device %s does not act as a port of this team\n", | |
1329 | portname); | |
1330 | return -ENOENT; | |
1331 | } | |
1332 | ||
19a0b58e JP |
1333 | team_port_disable(team, port); |
1334 | list_del_rcu(&port->list); | |
43c2adb9 HL |
1335 | |
1336 | if (dev->flags & IFF_PROMISC) | |
1337 | dev_set_promiscuity(port_dev, -1); | |
1338 | if (dev->flags & IFF_ALLMULTI) | |
1339 | dev_set_allmulti(port_dev, -1); | |
1340 | ||
8fd72856 | 1341 | team_upper_dev_unlink(team, port); |
3d249d4c | 1342 | netdev_rx_handler_unregister(port_dev); |
bd2d0837 | 1343 | team_port_disable_netpoll(port); |
57459185 | 1344 | vlan_vids_del_by_dev(port_dev, dev); |
ba81276b VY |
1345 | dev_uc_unsync(port_dev, dev); |
1346 | dev_mc_unsync(port_dev, dev); | |
3d249d4c JP |
1347 | dev_close(port_dev); |
1348 | team_port_leave(team, port); | |
c3969d80 JP |
1349 | |
1350 | __team_option_inst_mark_removed_port(team, port); | |
1351 | __team_options_change_check(team); | |
1352 | __team_option_inst_del_port(team, port); | |
1353 | __team_port_change_port_removed(port); | |
1354 | ||
1d76efe1 | 1355 | team_port_set_orig_dev_addr(port); |
3d249d4c | 1356 | dev_set_mtu(port_dev, port->orig.mtu); |
d80b35be | 1357 | kfree_rcu(port, rcu); |
3d249d4c JP |
1358 | netdev_info(dev, "Port device %s removed\n", portname); |
1359 | __team_compute_features(team); | |
1360 | ||
1361 | return 0; | |
1362 | } | |
1363 | ||
1364 | ||
1365 | /***************** | |
1366 | * Net device ops | |
1367 | *****************/ | |
1368 | ||
80f7c668 | 1369 | static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1370 | { |
d299cd51 | 1371 | ctx->data.str_val = team->mode->kind; |
3d249d4c JP |
1372 | return 0; |
1373 | } | |
1374 | ||
80f7c668 | 1375 | static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx) |
3d249d4c | 1376 | { |
80f7c668 | 1377 | return team_change_mode(team, ctx->data.str_val); |
3d249d4c JP |
1378 | } |
1379 | ||
fc423ff0 JP |
1380 | static int team_notify_peers_count_get(struct team *team, |
1381 | struct team_gsetter_ctx *ctx) | |
1382 | { | |
1383 | ctx->data.u32_val = team->notify_peers.count; | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | static int team_notify_peers_count_set(struct team *team, | |
1388 | struct team_gsetter_ctx *ctx) | |
1389 | { | |
1390 | team->notify_peers.count = ctx->data.u32_val; | |
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | static int team_notify_peers_interval_get(struct team *team, | |
1395 | struct team_gsetter_ctx *ctx) | |
1396 | { | |
1397 | ctx->data.u32_val = team->notify_peers.interval; | |
1398 | return 0; | |
1399 | } | |
1400 | ||
1401 | static int team_notify_peers_interval_set(struct team *team, | |
1402 | struct team_gsetter_ctx *ctx) | |
1403 | { | |
1404 | team->notify_peers.interval = ctx->data.u32_val; | |
1405 | return 0; | |
1406 | } | |
1407 | ||
492b200e JP |
1408 | static int team_mcast_rejoin_count_get(struct team *team, |
1409 | struct team_gsetter_ctx *ctx) | |
1410 | { | |
1411 | ctx->data.u32_val = team->mcast_rejoin.count; | |
1412 | return 0; | |
1413 | } | |
1414 | ||
1415 | static int team_mcast_rejoin_count_set(struct team *team, | |
1416 | struct team_gsetter_ctx *ctx) | |
1417 | { | |
1418 | team->mcast_rejoin.count = ctx->data.u32_val; | |
1419 | return 0; | |
1420 | } | |
1421 | ||
1422 | static int team_mcast_rejoin_interval_get(struct team *team, | |
1423 | struct team_gsetter_ctx *ctx) | |
1424 | { | |
1425 | ctx->data.u32_val = team->mcast_rejoin.interval; | |
1426 | return 0; | |
1427 | } | |
1428 | ||
1429 | static int team_mcast_rejoin_interval_set(struct team *team, | |
1430 | struct team_gsetter_ctx *ctx) | |
1431 | { | |
1432 | team->mcast_rejoin.interval = ctx->data.u32_val; | |
1433 | return 0; | |
1434 | } | |
1435 | ||
acd69962 JP |
1436 | static int team_port_en_option_get(struct team *team, |
1437 | struct team_gsetter_ctx *ctx) | |
1438 | { | |
85d59a87 JP |
1439 | struct team_port *port = ctx->info->port; |
1440 | ||
1441 | ctx->data.bool_val = team_port_enabled(port); | |
acd69962 JP |
1442 | return 0; |
1443 | } | |
1444 | ||
1445 | static int team_port_en_option_set(struct team *team, | |
1446 | struct team_gsetter_ctx *ctx) | |
1447 | { | |
85d59a87 JP |
1448 | struct team_port *port = ctx->info->port; |
1449 | ||
acd69962 | 1450 | if (ctx->data.bool_val) |
85d59a87 | 1451 | team_port_enable(team, port); |
acd69962 | 1452 | else |
85d59a87 | 1453 | team_port_disable(team, port); |
acd69962 JP |
1454 | return 0; |
1455 | } | |
1456 | ||
71472ec1 JP |
1457 | static int team_user_linkup_option_get(struct team *team, |
1458 | struct team_gsetter_ctx *ctx) | |
1459 | { | |
85d59a87 JP |
1460 | struct team_port *port = ctx->info->port; |
1461 | ||
1462 | ctx->data.bool_val = port->user.linkup; | |
71472ec1 JP |
1463 | return 0; |
1464 | } | |
1465 | ||
f5e0d343 JP |
1466 | static void __team_carrier_check(struct team *team); |
1467 | ||
71472ec1 JP |
1468 | static int team_user_linkup_option_set(struct team *team, |
1469 | struct team_gsetter_ctx *ctx) | |
1470 | { | |
85d59a87 JP |
1471 | struct team_port *port = ctx->info->port; |
1472 | ||
1473 | port->user.linkup = ctx->data.bool_val; | |
1474 | team_refresh_port_linkup(port); | |
f5e0d343 | 1475 | __team_carrier_check(port->team); |
71472ec1 JP |
1476 | return 0; |
1477 | } | |
1478 | ||
1479 | static int team_user_linkup_en_option_get(struct team *team, | |
1480 | struct team_gsetter_ctx *ctx) | |
1481 | { | |
85d59a87 | 1482 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1483 | |
1484 | ctx->data.bool_val = port->user.linkup_enabled; | |
1485 | return 0; | |
1486 | } | |
1487 | ||
1488 | static int team_user_linkup_en_option_set(struct team *team, | |
1489 | struct team_gsetter_ctx *ctx) | |
1490 | { | |
85d59a87 | 1491 | struct team_port *port = ctx->info->port; |
71472ec1 JP |
1492 | |
1493 | port->user.linkup_enabled = ctx->data.bool_val; | |
85d59a87 | 1494 | team_refresh_port_linkup(port); |
f5e0d343 | 1495 | __team_carrier_check(port->team); |
71472ec1 JP |
1496 | return 0; |
1497 | } | |
1498 | ||
a86fc6b7 JP |
1499 | static int team_priority_option_get(struct team *team, |
1500 | struct team_gsetter_ctx *ctx) | |
1501 | { | |
1502 | struct team_port *port = ctx->info->port; | |
1503 | ||
1504 | ctx->data.s32_val = port->priority; | |
1505 | return 0; | |
1506 | } | |
1507 | ||
1508 | static int team_priority_option_set(struct team *team, | |
1509 | struct team_gsetter_ctx *ctx) | |
1510 | { | |
1511 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1512 | s32 priority = ctx->data.s32_val; |
a86fc6b7 | 1513 | |
6c31ff36 JP |
1514 | if (port->priority == priority) |
1515 | return 0; | |
1516 | port->priority = priority; | |
1517 | team_queue_override_port_prio_changed(team, port); | |
8ff5105a JP |
1518 | return 0; |
1519 | } | |
1520 | ||
1521 | static int team_queue_id_option_get(struct team *team, | |
1522 | struct team_gsetter_ctx *ctx) | |
1523 | { | |
1524 | struct team_port *port = ctx->info->port; | |
1525 | ||
1526 | ctx->data.u32_val = port->queue_id; | |
a86fc6b7 JP |
1527 | return 0; |
1528 | } | |
1529 | ||
8ff5105a JP |
1530 | static int team_queue_id_option_set(struct team *team, |
1531 | struct team_gsetter_ctx *ctx) | |
1532 | { | |
1533 | struct team_port *port = ctx->info->port; | |
6c31ff36 | 1534 | u16 new_queue_id = ctx->data.u32_val; |
8ff5105a | 1535 | |
6c31ff36 | 1536 | if (port->queue_id == new_queue_id) |
8ff5105a | 1537 | return 0; |
6c31ff36 | 1538 | if (new_queue_id >= team->dev->real_num_tx_queues) |
8ff5105a | 1539 | return -EINVAL; |
6c31ff36 | 1540 | team_queue_override_port_change_queue_id(team, port, new_queue_id); |
8ff5105a JP |
1541 | return 0; |
1542 | } | |
1543 | ||
358b8382 | 1544 | static const struct team_option team_options[] = { |
3d249d4c JP |
1545 | { |
1546 | .name = "mode", | |
1547 | .type = TEAM_OPTION_TYPE_STRING, | |
1548 | .getter = team_mode_option_get, | |
1549 | .setter = team_mode_option_set, | |
1550 | }, | |
fc423ff0 JP |
1551 | { |
1552 | .name = "notify_peers_count", | |
1553 | .type = TEAM_OPTION_TYPE_U32, | |
1554 | .getter = team_notify_peers_count_get, | |
1555 | .setter = team_notify_peers_count_set, | |
1556 | }, | |
1557 | { | |
1558 | .name = "notify_peers_interval", | |
1559 | .type = TEAM_OPTION_TYPE_U32, | |
1560 | .getter = team_notify_peers_interval_get, | |
1561 | .setter = team_notify_peers_interval_set, | |
1562 | }, | |
492b200e JP |
1563 | { |
1564 | .name = "mcast_rejoin_count", | |
1565 | .type = TEAM_OPTION_TYPE_U32, | |
1566 | .getter = team_mcast_rejoin_count_get, | |
1567 | .setter = team_mcast_rejoin_count_set, | |
1568 | }, | |
1569 | { | |
1570 | .name = "mcast_rejoin_interval", | |
1571 | .type = TEAM_OPTION_TYPE_U32, | |
1572 | .getter = team_mcast_rejoin_interval_get, | |
1573 | .setter = team_mcast_rejoin_interval_set, | |
1574 | }, | |
acd69962 JP |
1575 | { |
1576 | .name = "enabled", | |
1577 | .type = TEAM_OPTION_TYPE_BOOL, | |
1578 | .per_port = true, | |
1579 | .getter = team_port_en_option_get, | |
1580 | .setter = team_port_en_option_set, | |
1581 | }, | |
71472ec1 JP |
1582 | { |
1583 | .name = "user_linkup", | |
1584 | .type = TEAM_OPTION_TYPE_BOOL, | |
1585 | .per_port = true, | |
1586 | .getter = team_user_linkup_option_get, | |
1587 | .setter = team_user_linkup_option_set, | |
1588 | }, | |
1589 | { | |
1590 | .name = "user_linkup_enabled", | |
1591 | .type = TEAM_OPTION_TYPE_BOOL, | |
1592 | .per_port = true, | |
1593 | .getter = team_user_linkup_en_option_get, | |
1594 | .setter = team_user_linkup_en_option_set, | |
1595 | }, | |
a86fc6b7 JP |
1596 | { |
1597 | .name = "priority", | |
1598 | .type = TEAM_OPTION_TYPE_S32, | |
1599 | .per_port = true, | |
1600 | .getter = team_priority_option_get, | |
1601 | .setter = team_priority_option_set, | |
1602 | }, | |
8ff5105a JP |
1603 | { |
1604 | .name = "queue_id", | |
1605 | .type = TEAM_OPTION_TYPE_U32, | |
1606 | .per_port = true, | |
1607 | .getter = team_queue_id_option_get, | |
1608 | .setter = team_queue_id_option_set, | |
1609 | }, | |
3d249d4c JP |
1610 | }; |
1611 | ||
6c85f2bd | 1612 | |
3d249d4c JP |
1613 | static int team_init(struct net_device *dev) |
1614 | { | |
1615 | struct team *team = netdev_priv(dev); | |
1616 | int i; | |
358b8382 | 1617 | int err; |
3d249d4c JP |
1618 | |
1619 | team->dev = dev; | |
61dc3461 | 1620 | mutex_init(&team->lock); |
d299cd51 | 1621 | team_set_no_mode(team); |
3d249d4c | 1622 | |
1c213bd2 | 1623 | team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats); |
3d249d4c JP |
1624 | if (!team->pcpu_stats) |
1625 | return -ENOMEM; | |
1626 | ||
1627 | for (i = 0; i < TEAM_PORT_HASHENTRIES; i++) | |
19a0b58e | 1628 | INIT_HLIST_HEAD(&team->en_port_hlist[i]); |
3d249d4c | 1629 | INIT_LIST_HEAD(&team->port_list); |
8ff5105a JP |
1630 | err = team_queue_override_init(team); |
1631 | if (err) | |
1632 | goto err_team_queue_override_init; | |
3d249d4c JP |
1633 | |
1634 | team_adjust_ops(team); | |
1635 | ||
1636 | INIT_LIST_HEAD(&team->option_list); | |
80f7c668 | 1637 | INIT_LIST_HEAD(&team->option_inst_list); |
fc423ff0 JP |
1638 | |
1639 | team_notify_peers_init(team); | |
492b200e | 1640 | team_mcast_rejoin_init(team); |
fc423ff0 | 1641 | |
358b8382 JP |
1642 | err = team_options_register(team, team_options, ARRAY_SIZE(team_options)); |
1643 | if (err) | |
1644 | goto err_options_register; | |
3d249d4c JP |
1645 | netif_carrier_off(dev); |
1646 | ||
d3fff6c4 | 1647 | netdev_lockdep_set_classes(dev); |
6c85f2bd | 1648 | |
3d249d4c | 1649 | return 0; |
358b8382 JP |
1650 | |
1651 | err_options_register: | |
492b200e | 1652 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1653 | team_notify_peers_fini(team); |
8ff5105a JP |
1654 | team_queue_override_fini(team); |
1655 | err_team_queue_override_init: | |
358b8382 JP |
1656 | free_percpu(team->pcpu_stats); |
1657 | ||
1658 | return err; | |
3d249d4c JP |
1659 | } |
1660 | ||
1661 | static void team_uninit(struct net_device *dev) | |
1662 | { | |
1663 | struct team *team = netdev_priv(dev); | |
1664 | struct team_port *port; | |
1665 | struct team_port *tmp; | |
1666 | ||
61dc3461 | 1667 | mutex_lock(&team->lock); |
3d249d4c JP |
1668 | list_for_each_entry_safe(port, tmp, &team->port_list, list) |
1669 | team_port_del(team, port->dev); | |
1670 | ||
1671 | __team_change_mode(team, NULL); /* cleanup */ | |
1672 | __team_options_unregister(team, team_options, ARRAY_SIZE(team_options)); | |
492b200e | 1673 | team_mcast_rejoin_fini(team); |
fc423ff0 | 1674 | team_notify_peers_fini(team); |
8ff5105a | 1675 | team_queue_override_fini(team); |
61dc3461 | 1676 | mutex_unlock(&team->lock); |
16cf72bb | 1677 | netdev_change_features(dev); |
3d249d4c JP |
1678 | } |
1679 | ||
1680 | static void team_destructor(struct net_device *dev) | |
1681 | { | |
1682 | struct team *team = netdev_priv(dev); | |
1683 | ||
1684 | free_percpu(team->pcpu_stats); | |
3d249d4c JP |
1685 | } |
1686 | ||
1687 | static int team_open(struct net_device *dev) | |
1688 | { | |
3d249d4c JP |
1689 | return 0; |
1690 | } | |
1691 | ||
1692 | static int team_close(struct net_device *dev) | |
1693 | { | |
3d249d4c JP |
1694 | return 0; |
1695 | } | |
1696 | ||
1697 | /* | |
1698 | * note: already called with rcu_read_lock | |
1699 | */ | |
1700 | static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev) | |
1701 | { | |
1702 | struct team *team = netdev_priv(dev); | |
8ff5105a | 1703 | bool tx_success; |
3d249d4c JP |
1704 | unsigned int len = skb->len; |
1705 | ||
8ff5105a JP |
1706 | tx_success = team_queue_override_transmit(team, skb); |
1707 | if (!tx_success) | |
1708 | tx_success = team->ops.transmit(team, skb); | |
3d249d4c JP |
1709 | if (tx_success) { |
1710 | struct team_pcpu_stats *pcpu_stats; | |
1711 | ||
1712 | pcpu_stats = this_cpu_ptr(team->pcpu_stats); | |
1713 | u64_stats_update_begin(&pcpu_stats->syncp); | |
1714 | pcpu_stats->tx_packets++; | |
1715 | pcpu_stats->tx_bytes += len; | |
1716 | u64_stats_update_end(&pcpu_stats->syncp); | |
1717 | } else { | |
1718 | this_cpu_inc(team->pcpu_stats->tx_dropped); | |
1719 | } | |
1720 | ||
1721 | return NETDEV_TX_OK; | |
1722 | } | |
1723 | ||
f663dd9a | 1724 | static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb, |
a350ecce | 1725 | struct net_device *sb_dev) |
6c85f2bd JP |
1726 | { |
1727 | /* | |
1728 | * This helper function exists to help dev_pick_tx get the correct | |
1729 | * destination queue. Using a helper function skips a call to | |
1730 | * skb_tx_hash and will put the skbs in the queue we expect on their | |
1731 | * way down to the team driver. | |
1732 | */ | |
1733 | u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0; | |
1734 | ||
1735 | /* | |
1736 | * Save the original txq to restore before passing to the driver | |
1737 | */ | |
1738 | qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping; | |
1739 | ||
1740 | if (unlikely(txq >= dev->real_num_tx_queues)) { | |
1741 | do { | |
1742 | txq -= dev->real_num_tx_queues; | |
1743 | } while (txq >= dev->real_num_tx_queues); | |
1744 | } | |
1745 | return txq; | |
1746 | } | |
1747 | ||
3d249d4c JP |
1748 | static void team_change_rx_flags(struct net_device *dev, int change) |
1749 | { | |
1750 | struct team *team = netdev_priv(dev); | |
1751 | struct team_port *port; | |
1752 | int inc; | |
1753 | ||
1754 | rcu_read_lock(); | |
1755 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
1756 | if (change & IFF_PROMISC) { | |
1757 | inc = dev->flags & IFF_PROMISC ? 1 : -1; | |
1758 | dev_set_promiscuity(port->dev, inc); | |
1759 | } | |
1760 | if (change & IFF_ALLMULTI) { | |
1761 | inc = dev->flags & IFF_ALLMULTI ? 1 : -1; | |
1762 | dev_set_allmulti(port->dev, inc); | |
1763 | } | |
1764 | } | |
1765 | rcu_read_unlock(); | |
1766 | } | |
1767 | ||
1768 | static void team_set_rx_mode(struct net_device *dev) | |
1769 | { | |
1770 | struct team *team = netdev_priv(dev); | |
1771 | struct team_port *port; | |
1772 | ||
1773 | rcu_read_lock(); | |
1774 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
72b27032 VY |
1775 | dev_uc_sync_multiple(port->dev, dev); |
1776 | dev_mc_sync_multiple(port->dev, dev); | |
3d249d4c JP |
1777 | } |
1778 | rcu_read_unlock(); | |
1779 | } | |
1780 | ||
1781 | static int team_set_mac_address(struct net_device *dev, void *p) | |
1782 | { | |
1d76efe1 | 1783 | struct sockaddr *addr = p; |
3d249d4c JP |
1784 | struct team *team = netdev_priv(dev); |
1785 | struct team_port *port; | |
3d249d4c | 1786 | |
1d76efe1 JP |
1787 | if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) |
1788 | return -EADDRNOTAVAIL; | |
1789 | memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); | |
9215f437 JP |
1790 | mutex_lock(&team->lock); |
1791 | list_for_each_entry(port, &team->port_list, list) | |
1d76efe1 JP |
1792 | if (team->ops.port_change_dev_addr) |
1793 | team->ops.port_change_dev_addr(team, port); | |
9215f437 | 1794 | mutex_unlock(&team->lock); |
3d249d4c JP |
1795 | return 0; |
1796 | } | |
1797 | ||
1798 | static int team_change_mtu(struct net_device *dev, int new_mtu) | |
1799 | { | |
1800 | struct team *team = netdev_priv(dev); | |
1801 | struct team_port *port; | |
1802 | int err; | |
1803 | ||
1804 | /* | |
1805 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1806 | * to traverse list in reverse under rcu_read_lock | |
1807 | */ | |
61dc3461 | 1808 | mutex_lock(&team->lock); |
9d0d68fa | 1809 | team->port_mtu_change_allowed = true; |
3d249d4c JP |
1810 | list_for_each_entry(port, &team->port_list, list) { |
1811 | err = dev_set_mtu(port->dev, new_mtu); | |
1812 | if (err) { | |
1813 | netdev_err(dev, "Device %s failed to change mtu", | |
1814 | port->dev->name); | |
1815 | goto unwind; | |
1816 | } | |
1817 | } | |
9d0d68fa | 1818 | team->port_mtu_change_allowed = false; |
61dc3461 | 1819 | mutex_unlock(&team->lock); |
3d249d4c JP |
1820 | |
1821 | dev->mtu = new_mtu; | |
1822 | ||
1823 | return 0; | |
1824 | ||
1825 | unwind: | |
1826 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
1827 | dev_set_mtu(port->dev, dev->mtu); | |
9d0d68fa | 1828 | team->port_mtu_change_allowed = false; |
61dc3461 | 1829 | mutex_unlock(&team->lock); |
3d249d4c JP |
1830 | |
1831 | return err; | |
1832 | } | |
1833 | ||
bc1f4470 | 1834 | static void |
3d249d4c JP |
1835 | team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) |
1836 | { | |
1837 | struct team *team = netdev_priv(dev); | |
1838 | struct team_pcpu_stats *p; | |
1839 | u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes; | |
bb63daf9 | 1840 | u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0; |
3d249d4c JP |
1841 | unsigned int start; |
1842 | int i; | |
1843 | ||
1844 | for_each_possible_cpu(i) { | |
1845 | p = per_cpu_ptr(team->pcpu_stats, i); | |
1846 | do { | |
57a7744e | 1847 | start = u64_stats_fetch_begin_irq(&p->syncp); |
3d249d4c JP |
1848 | rx_packets = p->rx_packets; |
1849 | rx_bytes = p->rx_bytes; | |
1850 | rx_multicast = p->rx_multicast; | |
1851 | tx_packets = p->tx_packets; | |
1852 | tx_bytes = p->tx_bytes; | |
57a7744e | 1853 | } while (u64_stats_fetch_retry_irq(&p->syncp, start)); |
3d249d4c JP |
1854 | |
1855 | stats->rx_packets += rx_packets; | |
1856 | stats->rx_bytes += rx_bytes; | |
1857 | stats->multicast += rx_multicast; | |
1858 | stats->tx_packets += tx_packets; | |
1859 | stats->tx_bytes += tx_bytes; | |
1860 | /* | |
bb63daf9 JW |
1861 | * rx_dropped, tx_dropped & rx_nohandler are u32, |
1862 | * updated without syncp protection. | |
3d249d4c JP |
1863 | */ |
1864 | rx_dropped += p->rx_dropped; | |
1865 | tx_dropped += p->tx_dropped; | |
bb63daf9 | 1866 | rx_nohandler += p->rx_nohandler; |
3d249d4c JP |
1867 | } |
1868 | stats->rx_dropped = rx_dropped; | |
1869 | stats->tx_dropped = tx_dropped; | |
bb63daf9 | 1870 | stats->rx_nohandler = rx_nohandler; |
3d249d4c JP |
1871 | } |
1872 | ||
80d5c368 | 1873 | static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1874 | { |
1875 | struct team *team = netdev_priv(dev); | |
1876 | struct team_port *port; | |
87002b03 | 1877 | int err; |
3d249d4c | 1878 | |
87002b03 JP |
1879 | /* |
1880 | * Alhough this is reader, it's guarded by team lock. It's not possible | |
1881 | * to traverse list in reverse under rcu_read_lock | |
1882 | */ | |
1883 | mutex_lock(&team->lock); | |
1884 | list_for_each_entry(port, &team->port_list, list) { | |
80d5c368 | 1885 | err = vlan_vid_add(port->dev, proto, vid); |
87002b03 JP |
1886 | if (err) |
1887 | goto unwind; | |
3d249d4c | 1888 | } |
87002b03 | 1889 | mutex_unlock(&team->lock); |
8e586137 JP |
1890 | |
1891 | return 0; | |
87002b03 JP |
1892 | |
1893 | unwind: | |
1894 | list_for_each_entry_continue_reverse(port, &team->port_list, list) | |
80d5c368 | 1895 | vlan_vid_del(port->dev, proto, vid); |
87002b03 JP |
1896 | mutex_unlock(&team->lock); |
1897 | ||
1898 | return err; | |
3d249d4c JP |
1899 | } |
1900 | ||
80d5c368 | 1901 | static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
3d249d4c JP |
1902 | { |
1903 | struct team *team = netdev_priv(dev); | |
1904 | struct team_port *port; | |
1905 | ||
60a6531b IS |
1906 | mutex_lock(&team->lock); |
1907 | list_for_each_entry(port, &team->port_list, list) | |
80d5c368 | 1908 | vlan_vid_del(port->dev, proto, vid); |
60a6531b | 1909 | mutex_unlock(&team->lock); |
8e586137 JP |
1910 | |
1911 | return 0; | |
3d249d4c JP |
1912 | } |
1913 | ||
bd2d0837 JP |
1914 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1915 | static void team_poll_controller(struct net_device *dev) | |
1916 | { | |
1917 | } | |
1918 | ||
1919 | static void __team_netpoll_cleanup(struct team *team) | |
1920 | { | |
1921 | struct team_port *port; | |
1922 | ||
1923 | list_for_each_entry(port, &team->port_list, list) | |
1924 | team_port_disable_netpoll(port); | |
1925 | } | |
1926 | ||
1927 | static void team_netpoll_cleanup(struct net_device *dev) | |
1928 | { | |
1929 | struct team *team = netdev_priv(dev); | |
1930 | ||
1931 | mutex_lock(&team->lock); | |
1932 | __team_netpoll_cleanup(team); | |
1933 | mutex_unlock(&team->lock); | |
1934 | } | |
1935 | ||
1936 | static int team_netpoll_setup(struct net_device *dev, | |
a8779ec1 | 1937 | struct netpoll_info *npifo) |
bd2d0837 JP |
1938 | { |
1939 | struct team *team = netdev_priv(dev); | |
1940 | struct team_port *port; | |
3324d024 | 1941 | int err = 0; |
bd2d0837 JP |
1942 | |
1943 | mutex_lock(&team->lock); | |
1944 | list_for_each_entry(port, &team->port_list, list) { | |
9cf2f437 | 1945 | err = __team_port_enable_netpoll(port); |
bd2d0837 JP |
1946 | if (err) { |
1947 | __team_netpoll_cleanup(team); | |
1948 | break; | |
1949 | } | |
1950 | } | |
1951 | mutex_unlock(&team->lock); | |
1952 | return err; | |
1953 | } | |
1954 | #endif | |
1955 | ||
33eaf2a6 DA |
1956 | static int team_add_slave(struct net_device *dev, struct net_device *port_dev, |
1957 | struct netlink_ext_ack *extack) | |
3d249d4c JP |
1958 | { |
1959 | struct team *team = netdev_priv(dev); | |
1960 | int err; | |
1961 | ||
61dc3461 | 1962 | mutex_lock(&team->lock); |
44d15d93 | 1963 | err = team_port_add(team, port_dev, extack); |
61dc3461 | 1964 | mutex_unlock(&team->lock); |
16cf72bb XL |
1965 | |
1966 | if (!err) | |
1967 | netdev_change_features(dev); | |
1968 | ||
3d249d4c JP |
1969 | return err; |
1970 | } | |
1971 | ||
1972 | static int team_del_slave(struct net_device *dev, struct net_device *port_dev) | |
1973 | { | |
1974 | struct team *team = netdev_priv(dev); | |
1975 | int err; | |
1976 | ||
61dc3461 | 1977 | mutex_lock(&team->lock); |
3d249d4c | 1978 | err = team_port_del(team, port_dev); |
61dc3461 | 1979 | mutex_unlock(&team->lock); |
16cf72bb XL |
1980 | |
1981 | if (!err) | |
1982 | netdev_change_features(dev); | |
1983 | ||
3d249d4c JP |
1984 | return err; |
1985 | } | |
1986 | ||
234a8fd4 JP |
1987 | static netdev_features_t team_fix_features(struct net_device *dev, |
1988 | netdev_features_t features) | |
1989 | { | |
1990 | struct team_port *port; | |
1991 | struct team *team = netdev_priv(dev); | |
1992 | netdev_features_t mask; | |
1993 | ||
7889cbee | 1994 | mask = features; |
234a8fd4 JP |
1995 | features &= ~NETIF_F_ONE_FOR_ALL; |
1996 | features |= NETIF_F_ALL_FOR_ALL; | |
1997 | ||
1998 | rcu_read_lock(); | |
1999 | list_for_each_entry_rcu(port, &team->port_list, list) { | |
2000 | features = netdev_increment_features(features, | |
2001 | port->dev->features, | |
2002 | mask); | |
2003 | } | |
2004 | rcu_read_unlock(); | |
247f6d0f JP |
2005 | |
2006 | features = netdev_add_tso_features(features, mask); | |
2007 | ||
234a8fd4 JP |
2008 | return features; |
2009 | } | |
2010 | ||
4cafe373 FL |
2011 | static int team_change_carrier(struct net_device *dev, bool new_carrier) |
2012 | { | |
e185483e FL |
2013 | struct team *team = netdev_priv(dev); |
2014 | ||
2015 | team->user_carrier_enabled = true; | |
2016 | ||
4cafe373 FL |
2017 | if (new_carrier) |
2018 | netif_carrier_on(dev); | |
2019 | else | |
2020 | netif_carrier_off(dev); | |
2021 | return 0; | |
2022 | } | |
2023 | ||
3d249d4c JP |
2024 | static const struct net_device_ops team_netdev_ops = { |
2025 | .ndo_init = team_init, | |
2026 | .ndo_uninit = team_uninit, | |
2027 | .ndo_open = team_open, | |
2028 | .ndo_stop = team_close, | |
2029 | .ndo_start_xmit = team_xmit, | |
6c85f2bd | 2030 | .ndo_select_queue = team_select_queue, |
3d249d4c JP |
2031 | .ndo_change_rx_flags = team_change_rx_flags, |
2032 | .ndo_set_rx_mode = team_set_rx_mode, | |
2033 | .ndo_set_mac_address = team_set_mac_address, | |
2034 | .ndo_change_mtu = team_change_mtu, | |
2035 | .ndo_get_stats64 = team_get_stats64, | |
2036 | .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid, | |
2037 | .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid, | |
bd2d0837 JP |
2038 | #ifdef CONFIG_NET_POLL_CONTROLLER |
2039 | .ndo_poll_controller = team_poll_controller, | |
2040 | .ndo_netpoll_setup = team_netpoll_setup, | |
2041 | .ndo_netpoll_cleanup = team_netpoll_cleanup, | |
2042 | #endif | |
3d249d4c JP |
2043 | .ndo_add_slave = team_add_slave, |
2044 | .ndo_del_slave = team_del_slave, | |
234a8fd4 | 2045 | .ndo_fix_features = team_fix_features, |
4cafe373 | 2046 | .ndo_change_carrier = team_change_carrier, |
b9f4cf75 | 2047 | .ndo_features_check = passthru_features_check, |
3d249d4c JP |
2048 | }; |
2049 | ||
7f51c587 FL |
2050 | /*********************** |
2051 | * ethtool interface | |
2052 | ***********************/ | |
2053 | ||
2054 | static void team_ethtool_get_drvinfo(struct net_device *dev, | |
2055 | struct ethtool_drvinfo *drvinfo) | |
2056 | { | |
3066af58 FL |
2057 | strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver)); |
2058 | strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version)); | |
7f51c587 FL |
2059 | } |
2060 | ||
2061 | static const struct ethtool_ops team_ethtool_ops = { | |
2062 | .get_drvinfo = team_ethtool_get_drvinfo, | |
2063 | .get_link = ethtool_op_get_link, | |
2064 | }; | |
3d249d4c JP |
2065 | |
2066 | /*********************** | |
2067 | * rt netlink interface | |
2068 | ***********************/ | |
2069 | ||
1d76efe1 JP |
2070 | static void team_setup_by_port(struct net_device *dev, |
2071 | struct net_device *port_dev) | |
2072 | { | |
2073 | dev->header_ops = port_dev->header_ops; | |
2074 | dev->type = port_dev->type; | |
2075 | dev->hard_header_len = port_dev->hard_header_len; | |
2076 | dev->addr_len = port_dev->addr_len; | |
2077 | dev->mtu = port_dev->mtu; | |
2078 | memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len); | |
93af7357 | 2079 | eth_hw_addr_inherit(dev, port_dev); |
1d76efe1 JP |
2080 | } |
2081 | ||
2082 | static int team_dev_type_check_change(struct net_device *dev, | |
2083 | struct net_device *port_dev) | |
2084 | { | |
2085 | struct team *team = netdev_priv(dev); | |
2086 | char *portname = port_dev->name; | |
2087 | int err; | |
2088 | ||
2089 | if (dev->type == port_dev->type) | |
2090 | return 0; | |
2091 | if (!list_empty(&team->port_list)) { | |
2092 | netdev_err(dev, "Device %s is of different type\n", portname); | |
2093 | return -EBUSY; | |
2094 | } | |
2095 | err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev); | |
2096 | err = notifier_to_errno(err); | |
2097 | if (err) { | |
2098 | netdev_err(dev, "Refused to change device type\n"); | |
2099 | return err; | |
2100 | } | |
2101 | dev_uc_flush(dev); | |
2102 | dev_mc_flush(dev); | |
2103 | team_setup_by_port(dev, port_dev); | |
2104 | call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev); | |
2105 | return 0; | |
2106 | } | |
2107 | ||
3d249d4c JP |
2108 | static void team_setup(struct net_device *dev) |
2109 | { | |
2110 | ether_setup(dev); | |
3331aa37 | 2111 | dev->max_mtu = ETH_MAX_MTU; |
3d249d4c JP |
2112 | |
2113 | dev->netdev_ops = &team_netdev_ops; | |
7f51c587 | 2114 | dev->ethtool_ops = &team_ethtool_ops; |
cf124db5 DM |
2115 | dev->needs_free_netdev = true; |
2116 | dev->priv_destructor = team_destructor; | |
3d249d4c | 2117 | dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING); |
22e380a6 | 2118 | dev->priv_flags |= IFF_NO_QUEUE; |
c981e421 | 2119 | dev->priv_flags |= IFF_TEAM; |
3d249d4c JP |
2120 | |
2121 | /* | |
2122 | * Indicate we support unicast address filtering. That way core won't | |
2123 | * bring us to promisc mode in case a unicast addr is added. | |
2124 | * Let this up to underlay drivers. | |
2125 | */ | |
5a1d1c8c | 2126 | dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE; |
3d249d4c JP |
2127 | |
2128 | dev->features |= NETIF_F_LLTX; | |
2129 | dev->features |= NETIF_F_GRO; | |
99301ba1 WC |
2130 | |
2131 | /* Don't allow team devices to change network namespaces. */ | |
2132 | dev->features |= NETIF_F_NETNS_LOCAL; | |
2133 | ||
3ed71471 | 2134 | dev->hw_features = TEAM_VLAN_FEATURES | |
f646968f PM |
2135 | NETIF_F_HW_VLAN_CTAG_TX | |
2136 | NETIF_F_HW_VLAN_CTAG_RX | | |
2137 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
3d249d4c | 2138 | |
8eea1ca8 | 2139 | dev->hw_features |= NETIF_F_GSO_ENCAP_ALL | NETIF_F_GSO_UDP_L4; |
3d249d4c JP |
2140 | dev->features |= dev->hw_features; |
2141 | } | |
2142 | ||
2143 | static int team_newlink(struct net *src_net, struct net_device *dev, | |
7a3f4a18 MS |
2144 | struct nlattr *tb[], struct nlattr *data[], |
2145 | struct netlink_ext_ack *extack) | |
3d249d4c | 2146 | { |
3d249d4c | 2147 | if (tb[IFLA_ADDRESS] == NULL) |
7ce5d222 | 2148 | eth_hw_addr_random(dev); |
3d249d4c | 2149 | |
ff204cce | 2150 | return register_netdevice(dev); |
3d249d4c JP |
2151 | } |
2152 | ||
a8b8a889 MS |
2153 | static int team_validate(struct nlattr *tb[], struct nlattr *data[], |
2154 | struct netlink_ext_ack *extack) | |
3d249d4c JP |
2155 | { |
2156 | if (tb[IFLA_ADDRESS]) { | |
2157 | if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) | |
2158 | return -EINVAL; | |
2159 | if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) | |
2160 | return -EADDRNOTAVAIL; | |
2161 | } | |
2162 | return 0; | |
2163 | } | |
2164 | ||
6c85f2bd JP |
2165 | static unsigned int team_get_num_tx_queues(void) |
2166 | { | |
2167 | return TEAM_DEFAULT_NUM_TX_QUEUES; | |
2168 | } | |
2169 | ||
2170 | static unsigned int team_get_num_rx_queues(void) | |
2171 | { | |
2172 | return TEAM_DEFAULT_NUM_RX_QUEUES; | |
2173 | } | |
2174 | ||
3d249d4c | 2175 | static struct rtnl_link_ops team_link_ops __read_mostly = { |
6c85f2bd JP |
2176 | .kind = DRV_NAME, |
2177 | .priv_size = sizeof(struct team), | |
2178 | .setup = team_setup, | |
2179 | .newlink = team_newlink, | |
2180 | .validate = team_validate, | |
2181 | .get_num_tx_queues = team_get_num_tx_queues, | |
2182 | .get_num_rx_queues = team_get_num_rx_queues, | |
3d249d4c JP |
2183 | }; |
2184 | ||
2185 | ||
2186 | /*********************************** | |
2187 | * Generic netlink custom interface | |
2188 | ***********************************/ | |
2189 | ||
489111e5 | 2190 | static struct genl_family team_nl_family; |
3d249d4c JP |
2191 | |
2192 | static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = { | |
2193 | [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2194 | [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 }, | |
2195 | [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED }, | |
2196 | [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED }, | |
2197 | }; | |
2198 | ||
2199 | static const struct nla_policy | |
2200 | team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = { | |
2201 | [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, }, | |
2202 | [TEAM_ATTR_OPTION_NAME] = { | |
2203 | .type = NLA_STRING, | |
2204 | .len = TEAM_STRING_MAX_LEN, | |
2205 | }, | |
2206 | [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG }, | |
2207 | [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 }, | |
2615598f | 2208 | [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY }, |
3d249d4c JP |
2209 | }; |
2210 | ||
2211 | static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) | |
2212 | { | |
2213 | struct sk_buff *msg; | |
2214 | void *hdr; | |
2215 | int err; | |
2216 | ||
58050fce | 2217 | msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); |
3d249d4c JP |
2218 | if (!msg) |
2219 | return -ENOMEM; | |
2220 | ||
15e47304 | 2221 | hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, |
3d249d4c | 2222 | &team_nl_family, 0, TEAM_CMD_NOOP); |
a326e6dd WY |
2223 | if (!hdr) { |
2224 | err = -EMSGSIZE; | |
3d249d4c JP |
2225 | goto err_msg_put; |
2226 | } | |
2227 | ||
2228 | genlmsg_end(msg, hdr); | |
2229 | ||
15e47304 | 2230 | return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); |
3d249d4c JP |
2231 | |
2232 | err_msg_put: | |
2233 | nlmsg_free(msg); | |
2234 | ||
2235 | return err; | |
2236 | } | |
2237 | ||
2238 | /* | |
2239 | * Netlink cmd functions should be locked by following two functions. | |
8c0713a5 | 2240 | * Since dev gets held here, that ensures dev won't disappear in between. |
3d249d4c JP |
2241 | */ |
2242 | static struct team *team_nl_team_get(struct genl_info *info) | |
2243 | { | |
2244 | struct net *net = genl_info_net(info); | |
2245 | int ifindex; | |
2246 | struct net_device *dev; | |
2247 | struct team *team; | |
2248 | ||
2249 | if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX]) | |
2250 | return NULL; | |
2251 | ||
2252 | ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]); | |
8c0713a5 | 2253 | dev = dev_get_by_index(net, ifindex); |
3d249d4c | 2254 | if (!dev || dev->netdev_ops != &team_netdev_ops) { |
8c0713a5 JP |
2255 | if (dev) |
2256 | dev_put(dev); | |
3d249d4c JP |
2257 | return NULL; |
2258 | } | |
2259 | ||
2260 | team = netdev_priv(dev); | |
61dc3461 | 2261 | mutex_lock(&team->lock); |
3d249d4c JP |
2262 | return team; |
2263 | } | |
2264 | ||
2265 | static void team_nl_team_put(struct team *team) | |
2266 | { | |
61dc3461 | 2267 | mutex_unlock(&team->lock); |
8c0713a5 | 2268 | dev_put(team->dev); |
3d249d4c JP |
2269 | } |
2270 | ||
9b00cf2d | 2271 | typedef int team_nl_send_func_t(struct sk_buff *skb, |
15e47304 | 2272 | struct team *team, u32 portid); |
9b00cf2d | 2273 | |
15e47304 | 2274 | static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) |
9b00cf2d | 2275 | { |
15e47304 | 2276 | return genlmsg_unicast(dev_net(team->dev), skb, portid); |
9b00cf2d JP |
2277 | } |
2278 | ||
01048d9a JP |
2279 | static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, |
2280 | struct team_option_inst *opt_inst) | |
2281 | { | |
2282 | struct nlattr *option_item; | |
2283 | struct team_option *option = opt_inst->option; | |
9b00cf2d | 2284 | struct team_option_inst_info *opt_inst_info = &opt_inst->info; |
01048d9a JP |
2285 | struct team_gsetter_ctx ctx; |
2286 | int err; | |
2287 | ||
9b00cf2d JP |
2288 | ctx.info = opt_inst_info; |
2289 | err = team_option_get(team, opt_inst, &ctx); | |
2290 | if (err) | |
2291 | return err; | |
2292 | ||
01048d9a JP |
2293 | option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION); |
2294 | if (!option_item) | |
9b00cf2d | 2295 | return -EMSGSIZE; |
01048d9a | 2296 | |
9b00cf2d JP |
2297 | if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name)) |
2298 | goto nest_cancel; | |
01048d9a JP |
2299 | if (opt_inst_info->port && |
2300 | nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX, | |
2301 | opt_inst_info->port->dev->ifindex)) | |
9b00cf2d | 2302 | goto nest_cancel; |
01048d9a JP |
2303 | if (opt_inst->option->array_size && |
2304 | nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX, | |
2305 | opt_inst_info->array_index)) | |
9b00cf2d | 2306 | goto nest_cancel; |
01048d9a JP |
2307 | |
2308 | switch (option->type) { | |
2309 | case TEAM_OPTION_TYPE_U32: | |
2310 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32)) | |
9b00cf2d | 2311 | goto nest_cancel; |
01048d9a | 2312 | if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val)) |
9b00cf2d | 2313 | goto nest_cancel; |
01048d9a JP |
2314 | break; |
2315 | case TEAM_OPTION_TYPE_STRING: | |
2316 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING)) | |
9b00cf2d | 2317 | goto nest_cancel; |
01048d9a JP |
2318 | if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA, |
2319 | ctx.data.str_val)) | |
9b00cf2d | 2320 | goto nest_cancel; |
01048d9a JP |
2321 | break; |
2322 | case TEAM_OPTION_TYPE_BINARY: | |
2323 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY)) | |
9b00cf2d | 2324 | goto nest_cancel; |
01048d9a JP |
2325 | if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len, |
2326 | ctx.data.bin_val.ptr)) | |
9b00cf2d | 2327 | goto nest_cancel; |
01048d9a JP |
2328 | break; |
2329 | case TEAM_OPTION_TYPE_BOOL: | |
2330 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG)) | |
9b00cf2d | 2331 | goto nest_cancel; |
01048d9a JP |
2332 | if (ctx.data.bool_val && |
2333 | nla_put_flag(skb, TEAM_ATTR_OPTION_DATA)) | |
9b00cf2d | 2334 | goto nest_cancel; |
01048d9a | 2335 | break; |
69821638 JP |
2336 | case TEAM_OPTION_TYPE_S32: |
2337 | if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32)) | |
2338 | goto nest_cancel; | |
2339 | if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val)) | |
2340 | goto nest_cancel; | |
2341 | break; | |
01048d9a JP |
2342 | default: |
2343 | BUG(); | |
2344 | } | |
9b00cf2d JP |
2345 | if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED)) |
2346 | goto nest_cancel; | |
2347 | if (opt_inst->changed) { | |
2348 | if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED)) | |
2349 | goto nest_cancel; | |
2350 | opt_inst->changed = false; | |
2351 | } | |
01048d9a JP |
2352 | nla_nest_end(skb, option_item); |
2353 | return 0; | |
2354 | ||
9b00cf2d JP |
2355 | nest_cancel: |
2356 | nla_nest_cancel(skb, option_item); | |
2357 | return -EMSGSIZE; | |
2358 | } | |
2359 | ||
2360 | static int __send_and_alloc_skb(struct sk_buff **pskb, | |
15e47304 | 2361 | struct team *team, u32 portid, |
9b00cf2d JP |
2362 | team_nl_send_func_t *send_func) |
2363 | { | |
2364 | int err; | |
2365 | ||
2366 | if (*pskb) { | |
15e47304 | 2367 | err = send_func(*pskb, team, portid); |
9b00cf2d JP |
2368 | if (err) |
2369 | return err; | |
2370 | } | |
58050fce | 2371 | *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL); |
9b00cf2d JP |
2372 | if (!*pskb) |
2373 | return -ENOMEM; | |
2374 | return 0; | |
01048d9a JP |
2375 | } |
2376 | ||
15e47304 | 2377 | static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, |
9b00cf2d | 2378 | int flags, team_nl_send_func_t *send_func, |
01048d9a | 2379 | struct list_head *sel_opt_inst_list) |
3d249d4c JP |
2380 | { |
2381 | struct nlattr *option_list; | |
9b00cf2d | 2382 | struct nlmsghdr *nlh; |
3d249d4c | 2383 | void *hdr; |
80f7c668 JP |
2384 | struct team_option_inst *opt_inst; |
2385 | int err; | |
9b00cf2d JP |
2386 | struct sk_buff *skb = NULL; |
2387 | bool incomplete; | |
2388 | int i; | |
3d249d4c | 2389 | |
9b00cf2d JP |
2390 | opt_inst = list_first_entry(sel_opt_inst_list, |
2391 | struct team_option_inst, tmp_list); | |
2392 | ||
2393 | start_again: | |
15e47304 | 2394 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d JP |
2395 | if (err) |
2396 | return err; | |
2397 | ||
15e47304 | 2398 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, |
3d249d4c | 2399 | TEAM_CMD_OPTIONS_GET); |
72ec0bc6 PB |
2400 | if (!hdr) { |
2401 | nlmsg_free(skb); | |
a326e6dd | 2402 | return -EMSGSIZE; |
72ec0bc6 | 2403 | } |
3d249d4c | 2404 | |
86ebb02d DM |
2405 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2406 | goto nla_put_failure; | |
3d249d4c JP |
2407 | option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION); |
2408 | if (!option_list) | |
75db986a | 2409 | goto nla_put_failure; |
3d249d4c | 2410 | |
9b00cf2d JP |
2411 | i = 0; |
2412 | incomplete = false; | |
2413 | list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { | |
01048d9a | 2414 | err = team_nl_fill_one_option_get(skb, team, opt_inst); |
9b00cf2d JP |
2415 | if (err) { |
2416 | if (err == -EMSGSIZE) { | |
2417 | if (!i) | |
2418 | goto errout; | |
2419 | incomplete = true; | |
2420 | break; | |
2421 | } | |
01048d9a | 2422 | goto errout; |
9b00cf2d JP |
2423 | } |
2424 | i++; | |
3d249d4c JP |
2425 | } |
2426 | ||
2427 | nla_nest_end(skb, option_list); | |
9b00cf2d JP |
2428 | genlmsg_end(skb, hdr); |
2429 | if (incomplete) | |
2430 | goto start_again; | |
2431 | ||
2432 | send_done: | |
15e47304 | 2433 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); |
9b00cf2d | 2434 | if (!nlh) { |
15e47304 | 2435 | err = __send_and_alloc_skb(&skb, team, portid, send_func); |
9b00cf2d | 2436 | if (err) |
cbcc607e | 2437 | return err; |
9b00cf2d JP |
2438 | goto send_done; |
2439 | } | |
2440 | ||
15e47304 | 2441 | return send_func(skb, team, portid); |
3d249d4c JP |
2442 | |
2443 | nla_put_failure: | |
80f7c668 JP |
2444 | err = -EMSGSIZE; |
2445 | errout: | |
9b00cf2d | 2446 | nlmsg_free(skb); |
80f7c668 | 2447 | return err; |
3d249d4c JP |
2448 | } |
2449 | ||
3d249d4c JP |
2450 | static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) |
2451 | { | |
2452 | struct team *team; | |
9b00cf2d | 2453 | struct team_option_inst *opt_inst; |
3d249d4c | 2454 | int err; |
9b00cf2d | 2455 | LIST_HEAD(sel_opt_inst_list); |
3d249d4c JP |
2456 | |
2457 | team = team_nl_team_get(info); | |
2458 | if (!team) | |
2459 | return -EINVAL; | |
2460 | ||
9b00cf2d JP |
2461 | list_for_each_entry(opt_inst, &team->option_inst_list, list) |
2462 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
15e47304 | 2463 | err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, |
9b00cf2d JP |
2464 | NLM_F_ACK, team_nl_send_unicast, |
2465 | &sel_opt_inst_list); | |
3d249d4c JP |
2466 | |
2467 | team_nl_team_put(team); | |
2468 | ||
2469 | return err; | |
2470 | } | |
2471 | ||
2fcdb2c9 JP |
2472 | static int team_nl_send_event_options_get(struct team *team, |
2473 | struct list_head *sel_opt_inst_list); | |
2474 | ||
3d249d4c JP |
2475 | static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info) |
2476 | { | |
2477 | struct team *team; | |
2478 | int err = 0; | |
2479 | int i; | |
2480 | struct nlattr *nl_option; | |
2481 | ||
7d259505 JP |
2482 | rtnl_lock(); |
2483 | ||
3d249d4c | 2484 | team = team_nl_team_get(info); |
7d259505 JP |
2485 | if (!team) { |
2486 | err = -EINVAL; | |
2487 | goto rtnl_unlock; | |
2488 | } | |
3d249d4c JP |
2489 | |
2490 | err = -EINVAL; | |
2491 | if (!info->attrs[TEAM_ATTR_LIST_OPTION]) { | |
2492 | err = -EINVAL; | |
2493 | goto team_put; | |
2494 | } | |
2495 | ||
2496 | nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) { | |
80f7c668 | 2497 | struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1]; |
b1303326 | 2498 | struct nlattr *attr; |
14f066ba | 2499 | struct nlattr *attr_data; |
2fdeee25 | 2500 | LIST_HEAD(opt_inst_list); |
3d249d4c | 2501 | enum team_option_type opt_type; |
80f7c668 | 2502 | int opt_port_ifindex = 0; /* != 0 for per-port options */ |
b1303326 JP |
2503 | u32 opt_array_index = 0; |
2504 | bool opt_is_array = false; | |
80f7c668 | 2505 | struct team_option_inst *opt_inst; |
3d249d4c JP |
2506 | char *opt_name; |
2507 | bool opt_found = false; | |
2508 | ||
2509 | if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) { | |
2510 | err = -EINVAL; | |
2511 | goto team_put; | |
2512 | } | |
80f7c668 | 2513 | err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX, |
fe52145f JB |
2514 | nl_option, team_nl_option_policy, |
2515 | info->extack); | |
3d249d4c JP |
2516 | if (err) |
2517 | goto team_put; | |
80f7c668 | 2518 | if (!opt_attrs[TEAM_ATTR_OPTION_NAME] || |
14f066ba | 2519 | !opt_attrs[TEAM_ATTR_OPTION_TYPE]) { |
3d249d4c JP |
2520 | err = -EINVAL; |
2521 | goto team_put; | |
2522 | } | |
80f7c668 | 2523 | switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) { |
3d249d4c JP |
2524 | case NLA_U32: |
2525 | opt_type = TEAM_OPTION_TYPE_U32; | |
2526 | break; | |
2527 | case NLA_STRING: | |
2528 | opt_type = TEAM_OPTION_TYPE_STRING; | |
2529 | break; | |
2615598f JP |
2530 | case NLA_BINARY: |
2531 | opt_type = TEAM_OPTION_TYPE_BINARY; | |
2532 | break; | |
14f066ba JP |
2533 | case NLA_FLAG: |
2534 | opt_type = TEAM_OPTION_TYPE_BOOL; | |
2535 | break; | |
69821638 JP |
2536 | case NLA_S32: |
2537 | opt_type = TEAM_OPTION_TYPE_S32; | |
2538 | break; | |
3d249d4c JP |
2539 | default: |
2540 | goto team_put; | |
2541 | } | |
2542 | ||
14f066ba JP |
2543 | attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA]; |
2544 | if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) { | |
2545 | err = -EINVAL; | |
2546 | goto team_put; | |
2547 | } | |
2548 | ||
80f7c668 | 2549 | opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]); |
b1303326 JP |
2550 | attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX]; |
2551 | if (attr) | |
2552 | opt_port_ifindex = nla_get_u32(attr); | |
2553 | ||
2554 | attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX]; | |
2555 | if (attr) { | |
2556 | opt_is_array = true; | |
2557 | opt_array_index = nla_get_u32(attr); | |
2558 | } | |
80f7c668 JP |
2559 | |
2560 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { | |
2561 | struct team_option *option = opt_inst->option; | |
80f7c668 | 2562 | struct team_gsetter_ctx ctx; |
85d59a87 | 2563 | struct team_option_inst_info *opt_inst_info; |
80f7c668 | 2564 | int tmp_ifindex; |
3d249d4c | 2565 | |
85d59a87 JP |
2566 | opt_inst_info = &opt_inst->info; |
2567 | tmp_ifindex = opt_inst_info->port ? | |
2568 | opt_inst_info->port->dev->ifindex : 0; | |
3d249d4c | 2569 | if (option->type != opt_type || |
80f7c668 | 2570 | strcmp(option->name, opt_name) || |
b1303326 JP |
2571 | tmp_ifindex != opt_port_ifindex || |
2572 | (option->array_size && !opt_is_array) || | |
85d59a87 | 2573 | opt_inst_info->array_index != opt_array_index) |
3d249d4c JP |
2574 | continue; |
2575 | opt_found = true; | |
85d59a87 | 2576 | ctx.info = opt_inst_info; |
3d249d4c JP |
2577 | switch (opt_type) { |
2578 | case TEAM_OPTION_TYPE_U32: | |
14f066ba | 2579 | ctx.data.u32_val = nla_get_u32(attr_data); |
3d249d4c JP |
2580 | break; |
2581 | case TEAM_OPTION_TYPE_STRING: | |
14f066ba | 2582 | if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) { |
2615598f JP |
2583 | err = -EINVAL; |
2584 | goto team_put; | |
2585 | } | |
14f066ba | 2586 | ctx.data.str_val = nla_data(attr_data); |
3d249d4c | 2587 | break; |
2615598f | 2588 | case TEAM_OPTION_TYPE_BINARY: |
14f066ba JP |
2589 | ctx.data.bin_val.len = nla_len(attr_data); |
2590 | ctx.data.bin_val.ptr = nla_data(attr_data); | |
2591 | break; | |
2592 | case TEAM_OPTION_TYPE_BOOL: | |
2593 | ctx.data.bool_val = attr_data ? true : false; | |
2615598f | 2594 | break; |
69821638 JP |
2595 | case TEAM_OPTION_TYPE_S32: |
2596 | ctx.data.s32_val = nla_get_s32(attr_data); | |
2597 | break; | |
3d249d4c JP |
2598 | default: |
2599 | BUG(); | |
2600 | } | |
80f7c668 | 2601 | err = team_option_set(team, opt_inst, &ctx); |
3d249d4c JP |
2602 | if (err) |
2603 | goto team_put; | |
2fcdb2c9 JP |
2604 | opt_inst->changed = true; |
2605 | list_add(&opt_inst->tmp_list, &opt_inst_list); | |
3d249d4c JP |
2606 | } |
2607 | if (!opt_found) { | |
2608 | err = -ENOENT; | |
2609 | goto team_put; | |
2610 | } | |
3d249d4c | 2611 | |
2fdeee25 CW |
2612 | err = team_nl_send_event_options_get(team, &opt_inst_list); |
2613 | if (err) | |
2614 | break; | |
2615 | } | |
2fcdb2c9 | 2616 | |
3d249d4c JP |
2617 | team_put: |
2618 | team_nl_team_put(team); | |
7d259505 JP |
2619 | rtnl_unlock: |
2620 | rtnl_unlock(); | |
3d249d4c JP |
2621 | return err; |
2622 | } | |
2623 | ||
d90f889e JP |
2624 | static int team_nl_fill_one_port_get(struct sk_buff *skb, |
2625 | struct team_port *port) | |
2626 | { | |
2627 | struct nlattr *port_item; | |
2628 | ||
2629 | port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT); | |
2630 | if (!port_item) | |
2631 | goto nest_cancel; | |
2632 | if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex)) | |
2633 | goto nest_cancel; | |
2634 | if (port->changed) { | |
2635 | if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED)) | |
2636 | goto nest_cancel; | |
2637 | port->changed = false; | |
2638 | } | |
2639 | if ((port->removed && | |
2640 | nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) || | |
2641 | (port->state.linkup && | |
2642 | nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) || | |
2643 | nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) || | |
2644 | nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex)) | |
2645 | goto nest_cancel; | |
2646 | nla_nest_end(skb, port_item); | |
2647 | return 0; | |
2648 | ||
2649 | nest_cancel: | |
2650 | nla_nest_cancel(skb, port_item); | |
2651 | return -EMSGSIZE; | |
2652 | } | |
2653 | ||
2654 | static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, | |
2655 | int flags, team_nl_send_func_t *send_func, | |
2656 | struct team_port *one_port) | |
3d249d4c JP |
2657 | { |
2658 | struct nlattr *port_list; | |
d90f889e | 2659 | struct nlmsghdr *nlh; |
3d249d4c JP |
2660 | void *hdr; |
2661 | struct team_port *port; | |
d90f889e JP |
2662 | int err; |
2663 | struct sk_buff *skb = NULL; | |
2664 | bool incomplete; | |
2665 | int i; | |
3d249d4c | 2666 | |
3f3e7ce4 JP |
2667 | port = list_first_entry_or_null(&team->port_list, |
2668 | struct team_port, list); | |
d90f889e JP |
2669 | |
2670 | start_again: | |
2671 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2672 | if (err) | |
2673 | return err; | |
2674 | ||
2675 | hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, | |
3d249d4c | 2676 | TEAM_CMD_PORT_LIST_GET); |
72ec0bc6 PB |
2677 | if (!hdr) { |
2678 | nlmsg_free(skb); | |
a326e6dd | 2679 | return -EMSGSIZE; |
72ec0bc6 | 2680 | } |
3d249d4c | 2681 | |
86ebb02d DM |
2682 | if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex)) |
2683 | goto nla_put_failure; | |
3d249d4c JP |
2684 | port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT); |
2685 | if (!port_list) | |
3221c646 | 2686 | goto nla_put_failure; |
3d249d4c | 2687 | |
d90f889e JP |
2688 | i = 0; |
2689 | incomplete = false; | |
3d249d4c | 2690 | |
d90f889e JP |
2691 | /* If one port is selected, called wants to send port list containing |
2692 | * only this port. Otherwise go through all listed ports and send all | |
2693 | */ | |
2694 | if (one_port) { | |
2695 | err = team_nl_fill_one_port_get(skb, one_port); | |
2696 | if (err) | |
2697 | goto errout; | |
3f3e7ce4 JP |
2698 | } else if (port) { |
2699 | list_for_each_entry_from(port, &team->port_list, list) { | |
d90f889e JP |
2700 | err = team_nl_fill_one_port_get(skb, port); |
2701 | if (err) { | |
2702 | if (err == -EMSGSIZE) { | |
2703 | if (!i) | |
2704 | goto errout; | |
2705 | incomplete = true; | |
2706 | break; | |
2707 | } | |
2708 | goto errout; | |
2709 | } | |
2710 | i++; | |
b82b9183 | 2711 | } |
3d249d4c JP |
2712 | } |
2713 | ||
2714 | nla_nest_end(skb, port_list); | |
d90f889e JP |
2715 | genlmsg_end(skb, hdr); |
2716 | if (incomplete) | |
2717 | goto start_again; | |
2718 | ||
2719 | send_done: | |
2720 | nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); | |
2721 | if (!nlh) { | |
2722 | err = __send_and_alloc_skb(&skb, team, portid, send_func); | |
2723 | if (err) | |
cbcc607e | 2724 | return err; |
d90f889e JP |
2725 | goto send_done; |
2726 | } | |
2727 | ||
2728 | return send_func(skb, team, portid); | |
3d249d4c JP |
2729 | |
2730 | nla_put_failure: | |
d90f889e JP |
2731 | err = -EMSGSIZE; |
2732 | errout: | |
d90f889e JP |
2733 | nlmsg_free(skb); |
2734 | return err; | |
3d249d4c JP |
2735 | } |
2736 | ||
2737 | static int team_nl_cmd_port_list_get(struct sk_buff *skb, | |
2738 | struct genl_info *info) | |
2739 | { | |
2740 | struct team *team; | |
2741 | int err; | |
2742 | ||
2743 | team = team_nl_team_get(info); | |
2744 | if (!team) | |
2745 | return -EINVAL; | |
2746 | ||
d90f889e JP |
2747 | err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq, |
2748 | NLM_F_ACK, team_nl_send_unicast, NULL); | |
3d249d4c JP |
2749 | |
2750 | team_nl_team_put(team); | |
2751 | ||
2752 | return err; | |
2753 | } | |
2754 | ||
4534de83 | 2755 | static const struct genl_ops team_nl_ops[] = { |
3d249d4c JP |
2756 | { |
2757 | .cmd = TEAM_CMD_NOOP, | |
2758 | .doit = team_nl_cmd_noop, | |
3d249d4c JP |
2759 | }, |
2760 | { | |
2761 | .cmd = TEAM_CMD_OPTIONS_SET, | |
2762 | .doit = team_nl_cmd_options_set, | |
3d249d4c JP |
2763 | .flags = GENL_ADMIN_PERM, |
2764 | }, | |
2765 | { | |
2766 | .cmd = TEAM_CMD_OPTIONS_GET, | |
2767 | .doit = team_nl_cmd_options_get, | |
3d249d4c JP |
2768 | .flags = GENL_ADMIN_PERM, |
2769 | }, | |
2770 | { | |
2771 | .cmd = TEAM_CMD_PORT_LIST_GET, | |
2772 | .doit = team_nl_cmd_port_list_get, | |
3d249d4c JP |
2773 | .flags = GENL_ADMIN_PERM, |
2774 | }, | |
2775 | }; | |
2776 | ||
2a94fe48 JB |
2777 | static const struct genl_multicast_group team_nl_mcgrps[] = { |
2778 | { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, }, | |
3d249d4c JP |
2779 | }; |
2780 | ||
56989f6d | 2781 | static struct genl_family team_nl_family __ro_after_init = { |
489111e5 JB |
2782 | .name = TEAM_GENL_NAME, |
2783 | .version = TEAM_GENL_VERSION, | |
2784 | .maxattr = TEAM_ATTR_MAX, | |
3b0f31f2 | 2785 | .policy = team_nl_policy, |
489111e5 JB |
2786 | .netnsok = true, |
2787 | .module = THIS_MODULE, | |
2788 | .ops = team_nl_ops, | |
2789 | .n_ops = ARRAY_SIZE(team_nl_ops), | |
2790 | .mcgrps = team_nl_mcgrps, | |
2791 | .n_mcgrps = ARRAY_SIZE(team_nl_mcgrps), | |
2792 | }; | |
2793 | ||
9b00cf2d | 2794 | static int team_nl_send_multicast(struct sk_buff *skb, |
15e47304 | 2795 | struct team *team, u32 portid) |
9b00cf2d | 2796 | { |
68eb5503 | 2797 | return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev), |
2a94fe48 | 2798 | skb, 0, 0, GFP_KERNEL); |
9b00cf2d JP |
2799 | } |
2800 | ||
01048d9a JP |
2801 | static int team_nl_send_event_options_get(struct team *team, |
2802 | struct list_head *sel_opt_inst_list) | |
3d249d4c | 2803 | { |
9b00cf2d JP |
2804 | return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast, |
2805 | sel_opt_inst_list); | |
3d249d4c JP |
2806 | } |
2807 | ||
d90f889e JP |
2808 | static int team_nl_send_event_port_get(struct team *team, |
2809 | struct team_port *port) | |
3d249d4c | 2810 | { |
d90f889e JP |
2811 | return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast, |
2812 | port); | |
3d249d4c JP |
2813 | } |
2814 | ||
56989f6d | 2815 | static int __init team_nl_init(void) |
3d249d4c | 2816 | { |
489111e5 | 2817 | return genl_register_family(&team_nl_family); |
3d249d4c JP |
2818 | } |
2819 | ||
2820 | static void team_nl_fini(void) | |
2821 | { | |
2822 | genl_unregister_family(&team_nl_family); | |
2823 | } | |
2824 | ||
2825 | ||
2826 | /****************** | |
2827 | * Change checkers | |
2828 | ******************/ | |
2829 | ||
b82b9183 | 2830 | static void __team_options_change_check(struct team *team) |
3d249d4c JP |
2831 | { |
2832 | int err; | |
01048d9a JP |
2833 | struct team_option_inst *opt_inst; |
2834 | LIST_HEAD(sel_opt_inst_list); | |
3d249d4c | 2835 | |
01048d9a JP |
2836 | list_for_each_entry(opt_inst, &team->option_inst_list, list) { |
2837 | if (opt_inst->changed) | |
2838 | list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); | |
2839 | } | |
2840 | err = team_nl_send_event_options_get(team, &sel_opt_inst_list); | |
0c7517e9 | 2841 | if (err && err != -ESRCH) |
9b00cf2d JP |
2842 | netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n", |
2843 | err); | |
3d249d4c JP |
2844 | } |
2845 | ||
2846 | /* rtnl lock is held */ | |
10f3f51d JP |
2847 | |
2848 | static void __team_port_change_send(struct team_port *port, bool linkup) | |
3d249d4c JP |
2849 | { |
2850 | int err; | |
2851 | ||
b82b9183 | 2852 | port->changed = true; |
71472ec1 JP |
2853 | port->state.linkup = linkup; |
2854 | team_refresh_port_linkup(port); | |
3d249d4c | 2855 | if (linkup) { |
0ab6b544 | 2856 | struct ethtool_link_ksettings ecmd; |
3d249d4c | 2857 | |
0ab6b544 | 2858 | err = __ethtool_get_link_ksettings(port->dev, &ecmd); |
3d249d4c | 2859 | if (!err) { |
0ab6b544 DD |
2860 | port->state.speed = ecmd.base.speed; |
2861 | port->state.duplex = ecmd.base.duplex; | |
3d249d4c JP |
2862 | goto send_event; |
2863 | } | |
2864 | } | |
71472ec1 JP |
2865 | port->state.speed = 0; |
2866 | port->state.duplex = 0; | |
3d249d4c JP |
2867 | |
2868 | send_event: | |
d90f889e | 2869 | err = team_nl_send_event_port_get(port->team, port); |
0c7517e9 JP |
2870 | if (err && err != -ESRCH) |
2871 | netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n", | |
2872 | port->dev->name, err); | |
3d249d4c JP |
2873 | |
2874 | } | |
2875 | ||
06a7fc42 FL |
2876 | static void __team_carrier_check(struct team *team) |
2877 | { | |
2878 | struct team_port *port; | |
2879 | bool team_linkup; | |
2880 | ||
e185483e FL |
2881 | if (team->user_carrier_enabled) |
2882 | return; | |
2883 | ||
06a7fc42 FL |
2884 | team_linkup = false; |
2885 | list_for_each_entry(port, &team->port_list, list) { | |
2886 | if (port->linkup) { | |
2887 | team_linkup = true; | |
2888 | break; | |
2889 | } | |
2890 | } | |
2891 | ||
2892 | if (team_linkup) | |
2893 | netif_carrier_on(team->dev); | |
2894 | else | |
2895 | netif_carrier_off(team->dev); | |
2896 | } | |
2897 | ||
10f3f51d JP |
2898 | static void __team_port_change_check(struct team_port *port, bool linkup) |
2899 | { | |
2900 | if (port->state.linkup != linkup) | |
2901 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2902 | __team_carrier_check(port->team); |
10f3f51d JP |
2903 | } |
2904 | ||
2905 | static void __team_port_change_port_added(struct team_port *port, bool linkup) | |
2906 | { | |
2907 | __team_port_change_send(port, linkup); | |
06a7fc42 | 2908 | __team_carrier_check(port->team); |
10f3f51d JP |
2909 | } |
2910 | ||
2911 | static void __team_port_change_port_removed(struct team_port *port) | |
2912 | { | |
2913 | port->removed = true; | |
2914 | __team_port_change_send(port, false); | |
06a7fc42 | 2915 | __team_carrier_check(port->team); |
10f3f51d JP |
2916 | } |
2917 | ||
3d249d4c JP |
2918 | static void team_port_change_check(struct team_port *port, bool linkup) |
2919 | { | |
2920 | struct team *team = port->team; | |
2921 | ||
61dc3461 | 2922 | mutex_lock(&team->lock); |
3d249d4c | 2923 | __team_port_change_check(port, linkup); |
61dc3461 | 2924 | mutex_unlock(&team->lock); |
3d249d4c JP |
2925 | } |
2926 | ||
0f1aad2b | 2927 | |
3d249d4c JP |
2928 | /************************************ |
2929 | * Net device notifier event handler | |
2930 | ************************************/ | |
2931 | ||
2932 | static int team_device_event(struct notifier_block *unused, | |
2933 | unsigned long event, void *ptr) | |
2934 | { | |
351638e7 | 2935 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
3d249d4c JP |
2936 | struct team_port *port; |
2937 | ||
2938 | port = team_port_get_rtnl(dev); | |
2939 | if (!port) | |
2940 | return NOTIFY_DONE; | |
2941 | ||
2942 | switch (event) { | |
2943 | case NETDEV_UP: | |
8c7a7726 | 2944 | if (netif_oper_up(dev)) |
3d249d4c | 2945 | team_port_change_check(port, true); |
ed2da03c | 2946 | break; |
3d249d4c JP |
2947 | case NETDEV_DOWN: |
2948 | team_port_change_check(port, false); | |
ed2da03c | 2949 | break; |
3d249d4c JP |
2950 | case NETDEV_CHANGE: |
2951 | if (netif_running(port->dev)) | |
2952 | team_port_change_check(port, | |
f1d22a1e | 2953 | !!netif_oper_up(port->dev)); |
3d249d4c JP |
2954 | break; |
2955 | case NETDEV_UNREGISTER: | |
2956 | team_del_slave(port->team->dev, dev); | |
2957 | break; | |
2958 | case NETDEV_FEAT_CHANGE: | |
2959 | team_compute_features(port->team); | |
2960 | break; | |
b01f236c | 2961 | case NETDEV_PRECHANGEMTU: |
3d249d4c | 2962 | /* Forbid to change mtu of underlaying device */ |
9d0d68fa JP |
2963 | if (!port->team->port_mtu_change_allowed) |
2964 | return NOTIFY_BAD; | |
2965 | break; | |
3d249d4c JP |
2966 | case NETDEV_PRE_TYPE_CHANGE: |
2967 | /* Forbid to change type of underlaying device */ | |
2968 | return NOTIFY_BAD; | |
4aa5dee4 JP |
2969 | case NETDEV_RESEND_IGMP: |
2970 | /* Propagate to master device */ | |
2971 | call_netdevice_notifiers(event, port->team->dev); | |
2972 | break; | |
3d249d4c JP |
2973 | } |
2974 | return NOTIFY_DONE; | |
2975 | } | |
2976 | ||
2977 | static struct notifier_block team_notifier_block __read_mostly = { | |
2978 | .notifier_call = team_device_event, | |
2979 | }; | |
2980 | ||
2981 | ||
2982 | /*********************** | |
2983 | * Module init and exit | |
2984 | ***********************/ | |
2985 | ||
2986 | static int __init team_module_init(void) | |
2987 | { | |
2988 | int err; | |
2989 | ||
2990 | register_netdevice_notifier(&team_notifier_block); | |
2991 | ||
2992 | err = rtnl_link_register(&team_link_ops); | |
2993 | if (err) | |
2994 | goto err_rtnl_reg; | |
2995 | ||
2996 | err = team_nl_init(); | |
2997 | if (err) | |
2998 | goto err_nl_init; | |
2999 | ||
3000 | return 0; | |
3001 | ||
3002 | err_nl_init: | |
3003 | rtnl_link_unregister(&team_link_ops); | |
3004 | ||
3005 | err_rtnl_reg: | |
3006 | unregister_netdevice_notifier(&team_notifier_block); | |
3007 | ||
3008 | return err; | |
3009 | } | |
3010 | ||
3011 | static void __exit team_module_exit(void) | |
3012 | { | |
3013 | team_nl_fini(); | |
3014 | rtnl_link_unregister(&team_link_ops); | |
3015 | unregister_netdevice_notifier(&team_notifier_block); | |
3016 | } | |
3017 | ||
3018 | module_init(team_module_init); | |
3019 | module_exit(team_module_exit); | |
3020 | ||
3021 | MODULE_LICENSE("GPL v2"); | |
3022 | MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>"); | |
3023 | MODULE_DESCRIPTION("Ethernet team device driver"); | |
3024 | MODULE_ALIAS_RTNL_LINK(DRV_NAME); |