blob: a468439969df7f7166c3116bfaa543f82ae52c91 [file] [log] [blame]
Jiri Pirko3d249d42011-11-11 22:16:48 +00001/*
Jiri Pirko0d572e42012-06-19 05:54:09 +00002 * drivers/net/team/team.c - Network team device driver
Jiri Pirko3d249d42011-11-11 22:16:48 +00003 * 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>
Jiri Pirkobd2d0832012-07-17 05:22:36 +000021#include <linux/netpoll.h>
Jiri Pirko87002b02011-12-08 04:11:17 +000022#include <linux/if_vlan.h>
Jiri Pirko3d249d42011-11-11 22:16:48 +000023#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>
Jiri Pirko6c85f2b2012-07-20 02:28:51 +000030#include <net/sch_generic.h>
Roopa Prabhua16a8ee72015-01-29 22:40:17 -080031#include <net/switchdev.h>
Flavio Leitner7f51c582012-12-29 16:37:33 +000032#include <generated/utsrelease.h>
Jiri Pirko3d249d42011-11-11 22:16:48 +000033#include <linux/if_team.h>
34
35#define DRV_NAME "team"
36
37
38/**********
39 * Helpers
40 **********/
41
42#define team_port_exists(dev) (dev->priv_flags & IFF_TEAM_PORT)
43
44static struct team_port *team_port_get_rcu(const struct net_device *dev)
45{
Jiri Pirko57e59562015-02-23 14:02:54 +010046 return rcu_dereference(dev->rx_handler_data);
Jiri Pirko3d249d42011-11-11 22:16:48 +000047}
48
49static struct team_port *team_port_get_rtnl(const struct net_device *dev)
50{
51 struct team_port *port = rtnl_dereference(dev->rx_handler_data);
52
53 return team_port_exists(dev) ? port : NULL;
54}
55
56/*
Jiri Pirko1d76efe2012-08-17 04:00:48 +000057 * Since the ability to change device address for open port device is tested in
Jiri Pirko3d249d42011-11-11 22:16:48 +000058 * team_port_add, this function can be called without control of return value
59 */
Jiri Pirko1d76efe2012-08-17 04:00:48 +000060static int __set_port_dev_addr(struct net_device *port_dev,
61 const unsigned char *dev_addr)
Jiri Pirko3d249d42011-11-11 22:16:48 +000062{
WANG Cong996f6e12017-07-26 15:22:07 -070063 struct sockaddr_storage addr;
Jiri Pirko3d249d42011-11-11 22:16:48 +000064
WANG Cong996f6e12017-07-26 15:22:07 -070065 memcpy(addr.__data, dev_addr, port_dev->addr_len);
66 addr.ss_family = port_dev->type;
67 return dev_set_mac_address(port_dev, (struct sockaddr *)&addr);
Jiri Pirko3d249d42011-11-11 22:16:48 +000068}
69
Jiri Pirko1d76efe2012-08-17 04:00:48 +000070static int team_port_set_orig_dev_addr(struct team_port *port)
Jiri Pirko3d249d42011-11-11 22:16:48 +000071{
Jiri Pirko1d76efe2012-08-17 04:00:48 +000072 return __set_port_dev_addr(port->dev, port->orig.dev_addr);
Jiri Pirko3d249d42011-11-11 22:16:48 +000073}
74
Jiri Pirkoacbba0d2013-03-06 01:31:12 +000075static int team_port_set_team_dev_addr(struct team *team,
76 struct team_port *port)
Jiri Pirko3d249d42011-11-11 22:16:48 +000077{
Jiri Pirkoacbba0d2013-03-06 01:31:12 +000078 return __set_port_dev_addr(port->dev, team->dev->dev_addr);
Jiri Pirko3d249d42011-11-11 22:16:48 +000079}
Jiri Pirkoacbba0d2013-03-06 01:31:12 +000080
81int team_modeop_port_enter(struct team *team, struct team_port *port)
82{
83 return team_port_set_team_dev_addr(team, port);
84}
85EXPORT_SYMBOL(team_modeop_port_enter);
86
87void team_modeop_port_change_dev_addr(struct team *team,
88 struct team_port *port)
89{
90 team_port_set_team_dev_addr(team, port);
91}
92EXPORT_SYMBOL(team_modeop_port_change_dev_addr);
Jiri Pirko3d249d42011-11-11 22:16:48 +000093
Jiri Pirko3a0d6c52015-12-03 12:12:18 +010094static void team_lower_state_changed(struct team_port *port)
95{
96 struct netdev_lag_lower_state_info info;
97
98 info.link_up = port->linkup;
99 info.tx_enabled = team_port_enabled(port);
100 netdev_lower_state_changed(port->dev, &info);
101}
102
Jiri Pirko71472ec2012-04-10 05:15:44 +0000103static void team_refresh_port_linkup(struct team_port *port)
104{
Jiri Pirko3a0d6c52015-12-03 12:12:18 +0100105 bool new_linkup = port->user.linkup_enabled ? port->user.linkup :
106 port->state.linkup;
107
108 if (port->linkup != new_linkup) {
109 port->linkup = new_linkup;
110 team_lower_state_changed(port);
111 }
Jiri Pirko71472ec2012-04-10 05:15:44 +0000112}
Jiri Pirko3d249d42011-11-11 22:16:48 +0000113
Jiri Pirko0f1aad22012-06-19 05:54:11 +0000114
Jiri Pirko3d249d42011-11-11 22:16:48 +0000115/*******************
116 * Options handling
117 *******************/
118
Jiri Pirko80f7c662012-04-10 05:15:42 +0000119struct team_option_inst { /* One for each option instance */
120 struct list_head list;
Jiri Pirko01048d92012-06-19 05:54:14 +0000121 struct list_head tmp_list;
Jiri Pirko80f7c662012-04-10 05:15:42 +0000122 struct team_option *option;
Jiri Pirko85d59a82012-06-19 05:54:10 +0000123 struct team_option_inst_info info;
Jiri Pirko80f7c662012-04-10 05:15:42 +0000124 bool changed;
125 bool removed;
126};
127
128static struct team_option *__team_find_option(struct team *team,
129 const char *opt_name)
Jiri Pirko358b8382011-11-16 11:09:09 +0000130{
131 struct team_option *option;
132
133 list_for_each_entry(option, &team->option_list, list) {
134 if (strcmp(option->name, opt_name) == 0)
135 return option;
136 }
137 return NULL;
138}
139
Jiri Pirko80f7c662012-04-10 05:15:42 +0000140static void __team_option_inst_del(struct team_option_inst *opt_inst)
141{
142 list_del(&opt_inst->list);
143 kfree(opt_inst);
144}
145
146static void __team_option_inst_del_option(struct team *team,
147 struct team_option *option)
148{
149 struct team_option_inst *opt_inst, *tmp;
150
151 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
152 if (opt_inst->option == option)
153 __team_option_inst_del(opt_inst);
154 }
155}
156
Jiri Pirkob1303322012-06-19 05:54:08 +0000157static int __team_option_inst_add(struct team *team, struct team_option *option,
158 struct team_port *port)
159{
160 struct team_option_inst *opt_inst;
161 unsigned int array_size;
162 unsigned int i;
Jiri Pirko85d59a82012-06-19 05:54:10 +0000163 int err;
Jiri Pirkob1303322012-06-19 05:54:08 +0000164
165 array_size = option->array_size;
166 if (!array_size)
167 array_size = 1; /* No array but still need one instance */
168
169 for (i = 0; i < array_size; i++) {
170 opt_inst = kmalloc(sizeof(*opt_inst), GFP_KERNEL);
171 if (!opt_inst)
172 return -ENOMEM;
173 opt_inst->option = option;
Jiri Pirko85d59a82012-06-19 05:54:10 +0000174 opt_inst->info.port = port;
175 opt_inst->info.array_index = i;
Jiri Pirkob1303322012-06-19 05:54:08 +0000176 opt_inst->changed = true;
177 opt_inst->removed = false;
178 list_add_tail(&opt_inst->list, &team->option_inst_list);
Jiri Pirko85d59a82012-06-19 05:54:10 +0000179 if (option->init) {
180 err = option->init(team, &opt_inst->info);
181 if (err)
182 return err;
183 }
184
Jiri Pirkob1303322012-06-19 05:54:08 +0000185 }
186 return 0;
187}
188
Jiri Pirko80f7c662012-04-10 05:15:42 +0000189static int __team_option_inst_add_option(struct team *team,
190 struct team_option *option)
191{
Jiri Pirko80f7c662012-04-10 05:15:42 +0000192 int err;
193
Jiri Pirkob1303322012-06-19 05:54:08 +0000194 if (!option->per_port) {
Jiri Pirkof88725f2012-06-19 05:54:15 +0000195 err = __team_option_inst_add(team, option, NULL);
Jiri Pirkob1303322012-06-19 05:54:08 +0000196 if (err)
197 goto inst_del_option;
198 }
Jiri Pirko80f7c662012-04-10 05:15:42 +0000199 return 0;
200
201inst_del_option:
202 __team_option_inst_del_option(team, option);
203 return err;
204}
205
206static void __team_option_inst_mark_removed_option(struct team *team,
207 struct team_option *option)
208{
209 struct team_option_inst *opt_inst;
210
211 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
212 if (opt_inst->option == option) {
213 opt_inst->changed = true;
214 opt_inst->removed = true;
215 }
216 }
217}
218
219static void __team_option_inst_del_port(struct team *team,
220 struct team_port *port)
221{
222 struct team_option_inst *opt_inst, *tmp;
223
224 list_for_each_entry_safe(opt_inst, tmp, &team->option_inst_list, list) {
225 if (opt_inst->option->per_port &&
Jiri Pirko85d59a82012-06-19 05:54:10 +0000226 opt_inst->info.port == port)
Jiri Pirko80f7c662012-04-10 05:15:42 +0000227 __team_option_inst_del(opt_inst);
228 }
229}
230
231static int __team_option_inst_add_port(struct team *team,
232 struct team_port *port)
233{
234 struct team_option *option;
235 int err;
236
237 list_for_each_entry(option, &team->option_list, list) {
238 if (!option->per_port)
239 continue;
240 err = __team_option_inst_add(team, option, port);
241 if (err)
242 goto inst_del_port;
243 }
244 return 0;
245
246inst_del_port:
247 __team_option_inst_del_port(team, port);
248 return err;
249}
250
251static void __team_option_inst_mark_removed_port(struct team *team,
252 struct team_port *port)
253{
254 struct team_option_inst *opt_inst;
255
256 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
Jiri Pirko85d59a82012-06-19 05:54:10 +0000257 if (opt_inst->info.port == port) {
Jiri Pirko80f7c662012-04-10 05:15:42 +0000258 opt_inst->changed = true;
259 opt_inst->removed = true;
260 }
261 }
262}
263
264static int __team_options_register(struct team *team,
265 const struct team_option *option,
266 size_t option_count)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000267{
268 int i;
Jiri Pirko2bba19f2011-11-17 04:16:05 +0000269 struct team_option **dst_opts;
Jiri Pirko358b8382011-11-16 11:09:09 +0000270 int err;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000271
Jiri Pirko2bba19f2011-11-17 04:16:05 +0000272 dst_opts = kzalloc(sizeof(struct team_option *) * option_count,
273 GFP_KERNEL);
274 if (!dst_opts)
275 return -ENOMEM;
Jiri Pirko358b8382011-11-16 11:09:09 +0000276 for (i = 0; i < option_count; i++, option++) {
Jiri Pirko358b8382011-11-16 11:09:09 +0000277 if (__team_find_option(team, option->name)) {
278 err = -EEXIST;
Jiri Pirko80f7c662012-04-10 05:15:42 +0000279 goto alloc_rollback;
Jiri Pirko358b8382011-11-16 11:09:09 +0000280 }
Jiri Pirkof8a15af2011-11-17 06:32:37 +0000281 dst_opts[i] = kmemdup(option, sizeof(*option), GFP_KERNEL);
282 if (!dst_opts[i]) {
Jiri Pirko358b8382011-11-16 11:09:09 +0000283 err = -ENOMEM;
Jiri Pirko80f7c662012-04-10 05:15:42 +0000284 goto alloc_rollback;
Jiri Pirko358b8382011-11-16 11:09:09 +0000285 }
Jiri Pirko358b8382011-11-16 11:09:09 +0000286 }
287
Jiri Pirkob82b9182012-01-24 05:16:00 +0000288 for (i = 0; i < option_count; i++) {
Jiri Pirko80f7c662012-04-10 05:15:42 +0000289 err = __team_option_inst_add_option(team, dst_opts[i]);
290 if (err)
291 goto inst_rollback;
Jiri Pirko358b8382011-11-16 11:09:09 +0000292 list_add_tail(&dst_opts[i]->list, &team->option_list);
Jiri Pirkob82b9182012-01-24 05:16:00 +0000293 }
Jiri Pirko358b8382011-11-16 11:09:09 +0000294
Jiri Pirko2bba19f2011-11-17 04:16:05 +0000295 kfree(dst_opts);
Jiri Pirko358b8382011-11-16 11:09:09 +0000296 return 0;
297
Jiri Pirko80f7c662012-04-10 05:15:42 +0000298inst_rollback:
299 for (i--; i >= 0; i--)
300 __team_option_inst_del_option(team, dst_opts[i]);
301
302 i = option_count - 1;
303alloc_rollback:
304 for (i--; i >= 0; i--)
Jiri Pirko358b8382011-11-16 11:09:09 +0000305 kfree(dst_opts[i]);
306
Jiri Pirko2bba19f2011-11-17 04:16:05 +0000307 kfree(dst_opts);
Jiri Pirko358b8382011-11-16 11:09:09 +0000308 return err;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000309}
Jiri Pirko358b8382011-11-16 11:09:09 +0000310
Jiri Pirkob82b9182012-01-24 05:16:00 +0000311static void __team_options_mark_removed(struct team *team,
312 const struct team_option *option,
313 size_t option_count)
314{
315 int i;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000316
Jiri Pirkob82b9182012-01-24 05:16:00 +0000317 for (i = 0; i < option_count; i++, option++) {
318 struct team_option *del_opt;
319
320 del_opt = __team_find_option(team, option->name);
Jiri Pirko80f7c662012-04-10 05:15:42 +0000321 if (del_opt)
322 __team_option_inst_mark_removed_option(team, del_opt);
Jiri Pirkob82b9182012-01-24 05:16:00 +0000323 }
324}
Jiri Pirko3d249d42011-11-11 22:16:48 +0000325
326static void __team_options_unregister(struct team *team,
Jiri Pirko358b8382011-11-16 11:09:09 +0000327 const struct team_option *option,
Jiri Pirko3d249d42011-11-11 22:16:48 +0000328 size_t option_count)
329{
330 int i;
331
Jiri Pirko358b8382011-11-16 11:09:09 +0000332 for (i = 0; i < option_count; i++, option++) {
333 struct team_option *del_opt;
334
335 del_opt = __team_find_option(team, option->name);
336 if (del_opt) {
Jiri Pirko80f7c662012-04-10 05:15:42 +0000337 __team_option_inst_del_option(team, del_opt);
Jiri Pirko358b8382011-11-16 11:09:09 +0000338 list_del(&del_opt->list);
339 kfree(del_opt);
340 }
341 }
Jiri Pirko3d249d42011-11-11 22:16:48 +0000342}
343
Jiri Pirkob82b9182012-01-24 05:16:00 +0000344static void __team_options_change_check(struct team *team);
345
346int team_options_register(struct team *team,
347 const struct team_option *option,
348 size_t option_count)
349{
350 int err;
351
352 err = __team_options_register(team, option, option_count);
353 if (err)
354 return err;
355 __team_options_change_check(team);
356 return 0;
357}
358EXPORT_SYMBOL(team_options_register);
359
Jiri Pirko358b8382011-11-16 11:09:09 +0000360void team_options_unregister(struct team *team,
361 const struct team_option *option,
Jiri Pirko3d249d42011-11-11 22:16:48 +0000362 size_t option_count)
363{
Jiri Pirkob82b9182012-01-24 05:16:00 +0000364 __team_options_mark_removed(team, option, option_count);
365 __team_options_change_check(team);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000366 __team_options_unregister(team, option, option_count);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000367}
368EXPORT_SYMBOL(team_options_unregister);
369
Jiri Pirko80f7c662012-04-10 05:15:42 +0000370static int team_option_get(struct team *team,
371 struct team_option_inst *opt_inst,
372 struct team_gsetter_ctx *ctx)
373{
Jiri Pirkof82b9592012-06-19 05:54:07 +0000374 if (!opt_inst->option->getter)
375 return -EOPNOTSUPP;
Jiri Pirko80f7c662012-04-10 05:15:42 +0000376 return opt_inst->option->getter(team, ctx);
377}
378
379static int team_option_set(struct team *team,
380 struct team_option_inst *opt_inst,
381 struct team_gsetter_ctx *ctx)
382{
Jiri Pirkof82b9592012-06-19 05:54:07 +0000383 if (!opt_inst->option->setter)
384 return -EOPNOTSUPP;
Jiri Pirko2fcdb2c2012-06-19 05:54:20 +0000385 return opt_inst->option->setter(team, ctx);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000386}
387
Jiri Pirko0f1aad22012-06-19 05:54:11 +0000388void team_option_inst_set_change(struct team_option_inst_info *opt_inst_info)
389{
390 struct team_option_inst *opt_inst;
391
392 opt_inst = container_of(opt_inst_info, struct team_option_inst, info);
393 opt_inst->changed = true;
394}
395EXPORT_SYMBOL(team_option_inst_set_change);
396
397void team_options_change_check(struct team *team)
398{
399 __team_options_change_check(team);
400}
401EXPORT_SYMBOL(team_options_change_check);
402
403
Jiri Pirko3d249d42011-11-11 22:16:48 +0000404/****************
405 * Mode handling
406 ****************/
407
408static LIST_HEAD(mode_list);
409static DEFINE_SPINLOCK(mode_list_lock);
410
Jiri Pirko04027882012-06-19 05:54:03 +0000411struct team_mode_item {
412 struct list_head list;
413 const struct team_mode *mode;
414};
Jiri Pirko3d249d42011-11-11 22:16:48 +0000415
Jiri Pirko04027882012-06-19 05:54:03 +0000416static struct team_mode_item *__find_mode(const char *kind)
417{
418 struct team_mode_item *mitem;
419
420 list_for_each_entry(mitem, &mode_list, list) {
421 if (strcmp(mitem->mode->kind, kind) == 0)
422 return mitem;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000423 }
424 return NULL;
425}
426
427static bool is_good_mode_name(const char *name)
428{
429 while (*name != '\0') {
430 if (!isalpha(*name) && !isdigit(*name) && *name != '_')
431 return false;
432 name++;
433 }
434 return true;
435}
436
Jiri Pirko04027882012-06-19 05:54:03 +0000437int team_mode_register(const struct team_mode *mode)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000438{
439 int err = 0;
Jiri Pirko04027882012-06-19 05:54:03 +0000440 struct team_mode_item *mitem;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000441
442 if (!is_good_mode_name(mode->kind) ||
443 mode->priv_size > TEAM_MODE_PRIV_SIZE)
444 return -EINVAL;
Jiri Pirko04027882012-06-19 05:54:03 +0000445
446 mitem = kmalloc(sizeof(*mitem), GFP_KERNEL);
447 if (!mitem)
448 return -ENOMEM;
449
Jiri Pirko3d249d42011-11-11 22:16:48 +0000450 spin_lock(&mode_list_lock);
451 if (__find_mode(mode->kind)) {
452 err = -EEXIST;
Jiri Pirko04027882012-06-19 05:54:03 +0000453 kfree(mitem);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000454 goto unlock;
455 }
Jiri Pirko04027882012-06-19 05:54:03 +0000456 mitem->mode = mode;
457 list_add_tail(&mitem->list, &mode_list);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000458unlock:
459 spin_unlock(&mode_list_lock);
460 return err;
461}
462EXPORT_SYMBOL(team_mode_register);
463
Jiri Pirko04027882012-06-19 05:54:03 +0000464void team_mode_unregister(const struct team_mode *mode)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000465{
Jiri Pirko04027882012-06-19 05:54:03 +0000466 struct team_mode_item *mitem;
467
Jiri Pirko3d249d42011-11-11 22:16:48 +0000468 spin_lock(&mode_list_lock);
Jiri Pirko04027882012-06-19 05:54:03 +0000469 mitem = __find_mode(mode->kind);
470 if (mitem) {
471 list_del_init(&mitem->list);
472 kfree(mitem);
473 }
Jiri Pirko3d249d42011-11-11 22:16:48 +0000474 spin_unlock(&mode_list_lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000475}
476EXPORT_SYMBOL(team_mode_unregister);
477
Jiri Pirko04027882012-06-19 05:54:03 +0000478static const struct team_mode *team_mode_get(const char *kind)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000479{
Jiri Pirko04027882012-06-19 05:54:03 +0000480 struct team_mode_item *mitem;
481 const struct team_mode *mode = NULL;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000482
483 spin_lock(&mode_list_lock);
Jiri Pirko04027882012-06-19 05:54:03 +0000484 mitem = __find_mode(kind);
485 if (!mitem) {
Jiri Pirko3d249d42011-11-11 22:16:48 +0000486 spin_unlock(&mode_list_lock);
487 request_module("team-mode-%s", kind);
488 spin_lock(&mode_list_lock);
Jiri Pirko04027882012-06-19 05:54:03 +0000489 mitem = __find_mode(kind);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000490 }
Jiri Pirko04027882012-06-19 05:54:03 +0000491 if (mitem) {
492 mode = mitem->mode;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000493 if (!try_module_get(mode->owner))
494 mode = NULL;
Jiri Pirko04027882012-06-19 05:54:03 +0000495 }
Jiri Pirko3d249d42011-11-11 22:16:48 +0000496
497 spin_unlock(&mode_list_lock);
498 return mode;
499}
500
501static void team_mode_put(const struct team_mode *mode)
502{
503 module_put(mode->owner);
504}
505
506static bool team_dummy_transmit(struct team *team, struct sk_buff *skb)
507{
508 dev_kfree_skb_any(skb);
509 return false;
510}
511
stephen hemminger2ea46592013-03-08 09:07:43 +0000512static rx_handler_result_t team_dummy_receive(struct team *team,
513 struct team_port *port,
514 struct sk_buff *skb)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000515{
516 return RX_HANDLER_ANOTHER;
517}
518
Jiri Pirkod299cd52012-06-19 05:54:04 +0000519static const struct team_mode __team_no_mode = {
520 .kind = "*NOMODE*",
521};
522
523static bool team_is_mode_set(struct team *team)
524{
525 return team->mode != &__team_no_mode;
526}
527
528static void team_set_no_mode(struct team *team)
529{
Flavio Leitnere1854832013-02-05 09:30:55 +0000530 team->user_carrier_enabled = false;
Jiri Pirkod299cd52012-06-19 05:54:04 +0000531 team->mode = &__team_no_mode;
532}
533
Jiri Pirko735d3812013-06-10 17:42:25 +0200534static void team_adjust_ops(struct team *team)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000535{
536 /*
537 * To avoid checks in rx/tx skb paths, ensure here that non-null and
538 * correct ops are always set.
539 */
540
Jiri Pirko735d3812013-06-10 17:42:25 +0200541 if (!team->en_port_count || !team_is_mode_set(team) ||
Jiri Pirko122bb042012-06-26 06:52:45 +0000542 !team->mode->ops->transmit)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000543 team->ops.transmit = team_dummy_transmit;
544 else
545 team->ops.transmit = team->mode->ops->transmit;
546
Jiri Pirko735d3812013-06-10 17:42:25 +0200547 if (!team->en_port_count || !team_is_mode_set(team) ||
Jiri Pirko122bb042012-06-26 06:52:45 +0000548 !team->mode->ops->receive)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000549 team->ops.receive = team_dummy_receive;
550 else
551 team->ops.receive = team->mode->ops->receive;
552}
553
554/*
555 * We can benefit from the fact that it's ensured no port is present
556 * at the time of mode change. Therefore no packets are in fly so there's no
557 * need to set mode operations in any special way.
558 */
559static int __team_change_mode(struct team *team,
560 const struct team_mode *new_mode)
561{
562 /* Check if mode was previously set and do cleanup if so */
Jiri Pirkod299cd52012-06-19 05:54:04 +0000563 if (team_is_mode_set(team)) {
Jiri Pirko3d249d42011-11-11 22:16:48 +0000564 void (*exit_op)(struct team *team) = team->ops.exit;
565
566 /* Clear ops area so no callback is called any longer */
567 memset(&team->ops, 0, sizeof(struct team_mode_ops));
568 team_adjust_ops(team);
569
570 if (exit_op)
571 exit_op(team);
572 team_mode_put(team->mode);
Jiri Pirkod299cd52012-06-19 05:54:04 +0000573 team_set_no_mode(team);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000574 /* zero private data area */
575 memset(&team->mode_priv, 0,
576 sizeof(struct team) - offsetof(struct team, mode_priv));
577 }
578
579 if (!new_mode)
580 return 0;
581
582 if (new_mode->ops->init) {
583 int err;
584
585 err = new_mode->ops->init(team);
586 if (err)
587 return err;
588 }
589
590 team->mode = new_mode;
591 memcpy(&team->ops, new_mode->ops, sizeof(struct team_mode_ops));
592 team_adjust_ops(team);
593
594 return 0;
595}
596
597static int team_change_mode(struct team *team, const char *kind)
598{
Jiri Pirko04027882012-06-19 05:54:03 +0000599 const struct team_mode *new_mode;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000600 struct net_device *dev = team->dev;
601 int err;
602
603 if (!list_empty(&team->port_list)) {
604 netdev_err(dev, "No ports can be present during mode change\n");
605 return -EBUSY;
606 }
607
Jiri Pirkod299cd52012-06-19 05:54:04 +0000608 if (team_is_mode_set(team) && strcmp(team->mode->kind, kind) == 0) {
Jiri Pirko3d249d42011-11-11 22:16:48 +0000609 netdev_err(dev, "Unable to change to the same mode the team is in\n");
610 return -EINVAL;
611 }
612
613 new_mode = team_mode_get(kind);
614 if (!new_mode) {
615 netdev_err(dev, "Mode \"%s\" not found\n", kind);
616 return -EINVAL;
617 }
618
619 err = __team_change_mode(team, new_mode);
620 if (err) {
621 netdev_err(dev, "Failed to change to mode \"%s\"\n", kind);
622 team_mode_put(new_mode);
623 return err;
624 }
625
626 netdev_info(dev, "Mode changed to \"%s\"\n", kind);
627 return 0;
628}
629
630
Jiri Pirkofc423ff2013-07-20 12:13:52 +0200631/*********************
632 * Peers notification
633 *********************/
634
635static void team_notify_peers_work(struct work_struct *work)
636{
637 struct team *team;
Jiri Pirkob0d11b42015-01-14 18:15:30 +0100638 int val;
Jiri Pirkofc423ff2013-07-20 12:13:52 +0200639
640 team = container_of(work, struct team, notify_peers.dw.work);
641
642 if (!rtnl_trylock()) {
643 schedule_delayed_work(&team->notify_peers.dw, 0);
644 return;
645 }
Jiri Pirkob0d11b42015-01-14 18:15:30 +0100646 val = atomic_dec_if_positive(&team->notify_peers.count_pending);
647 if (val < 0) {
648 rtnl_unlock();
649 return;
650 }
Jiri Pirkofc423ff2013-07-20 12:13:52 +0200651 call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, team->dev);
652 rtnl_unlock();
Jiri Pirkob0d11b42015-01-14 18:15:30 +0100653 if (val)
Jiri Pirkofc423ff2013-07-20 12:13:52 +0200654 schedule_delayed_work(&team->notify_peers.dw,
655 msecs_to_jiffies(team->notify_peers.interval));
656}
657
658static void team_notify_peers(struct team *team)
659{
660 if (!team->notify_peers.count || !netif_running(team->dev))
661 return;
Joe Lawrence47549652014-10-03 09:58:34 -0400662 atomic_add(team->notify_peers.count, &team->notify_peers.count_pending);
Jiri Pirkofc423ff2013-07-20 12:13:52 +0200663 schedule_delayed_work(&team->notify_peers.dw, 0);
664}
665
666static void team_notify_peers_init(struct team *team)
667{
668 INIT_DELAYED_WORK(&team->notify_peers.dw, team_notify_peers_work);
669}
670
671static void team_notify_peers_fini(struct team *team)
672{
673 cancel_delayed_work_sync(&team->notify_peers.dw);
674}
675
676
Jiri Pirko492b2002013-07-20 12:13:54 +0200677/*******************************
678 * Send multicast group rejoins
679 *******************************/
680
681static void team_mcast_rejoin_work(struct work_struct *work)
682{
683 struct team *team;
Jiri Pirkob0d11b42015-01-14 18:15:30 +0100684 int val;
Jiri Pirko492b2002013-07-20 12:13:54 +0200685
686 team = container_of(work, struct team, mcast_rejoin.dw.work);
687
688 if (!rtnl_trylock()) {
689 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
690 return;
691 }
Jiri Pirkob0d11b42015-01-14 18:15:30 +0100692 val = atomic_dec_if_positive(&team->mcast_rejoin.count_pending);
693 if (val < 0) {
694 rtnl_unlock();
695 return;
696 }
Jiri Pirko492b2002013-07-20 12:13:54 +0200697 call_netdevice_notifiers(NETDEV_RESEND_IGMP, team->dev);
698 rtnl_unlock();
Jiri Pirkob0d11b42015-01-14 18:15:30 +0100699 if (val)
Jiri Pirko492b2002013-07-20 12:13:54 +0200700 schedule_delayed_work(&team->mcast_rejoin.dw,
701 msecs_to_jiffies(team->mcast_rejoin.interval));
702}
703
704static void team_mcast_rejoin(struct team *team)
705{
706 if (!team->mcast_rejoin.count || !netif_running(team->dev))
707 return;
Joe Lawrence47549652014-10-03 09:58:34 -0400708 atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending);
Jiri Pirko492b2002013-07-20 12:13:54 +0200709 schedule_delayed_work(&team->mcast_rejoin.dw, 0);
710}
711
712static void team_mcast_rejoin_init(struct team *team)
713{
714 INIT_DELAYED_WORK(&team->mcast_rejoin.dw, team_mcast_rejoin_work);
715}
716
717static void team_mcast_rejoin_fini(struct team *team)
718{
719 cancel_delayed_work_sync(&team->mcast_rejoin.dw);
720}
721
722
Jiri Pirko3d249d42011-11-11 22:16:48 +0000723/************************
724 * Rx path frame handler
725 ************************/
726
727/* note: already called with rcu_read_lock */
728static rx_handler_result_t team_handle_frame(struct sk_buff **pskb)
729{
730 struct sk_buff *skb = *pskb;
731 struct team_port *port;
732 struct team *team;
733 rx_handler_result_t res;
734
735 skb = skb_share_check(skb, GFP_ATOMIC);
736 if (!skb)
737 return RX_HANDLER_CONSUMED;
738
739 *pskb = skb;
740
741 port = team_port_get_rcu(skb->dev);
742 team = port->team;
Jiri Pirko19a0b582012-04-20 04:42:05 +0000743 if (!team_port_enabled(port)) {
744 /* allow exact match delivery for disabled ports */
745 res = RX_HANDLER_EXACT;
746 } else {
747 res = team->ops.receive(team, port, skb);
748 }
Jiri Pirko3d249d42011-11-11 22:16:48 +0000749 if (res == RX_HANDLER_ANOTHER) {
750 struct team_pcpu_stats *pcpu_stats;
751
752 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
753 u64_stats_update_begin(&pcpu_stats->syncp);
754 pcpu_stats->rx_packets++;
755 pcpu_stats->rx_bytes += skb->len;
756 if (skb->pkt_type == PACKET_MULTICAST)
757 pcpu_stats->rx_multicast++;
758 u64_stats_update_end(&pcpu_stats->syncp);
759
760 skb->dev = team->dev;
Jarod Wilsonbb63daf2016-02-01 18:51:06 -0500761 } else if (res == RX_HANDLER_EXACT) {
762 this_cpu_inc(team->pcpu_stats->rx_nohandler);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000763 } else {
764 this_cpu_inc(team->pcpu_stats->rx_dropped);
765 }
766
767 return res;
768}
769
770
Jiri Pirko8ff51052012-07-27 06:28:55 +0000771/*************************************
772 * Multiqueue Tx port select override
773 *************************************/
774
775static int team_queue_override_init(struct team *team)
776{
777 struct list_head *listarr;
778 unsigned int queue_cnt = team->dev->num_tx_queues - 1;
779 unsigned int i;
780
781 if (!queue_cnt)
782 return 0;
783 listarr = kmalloc(sizeof(struct list_head) * queue_cnt, GFP_KERNEL);
784 if (!listarr)
785 return -ENOMEM;
786 team->qom_lists = listarr;
787 for (i = 0; i < queue_cnt; i++)
788 INIT_LIST_HEAD(listarr++);
789 return 0;
790}
791
792static void team_queue_override_fini(struct team *team)
793{
794 kfree(team->qom_lists);
795}
796
797static struct list_head *__team_get_qom_list(struct team *team, u16 queue_id)
798{
799 return &team->qom_lists[queue_id - 1];
800}
801
802/*
803 * note: already called with rcu_read_lock
804 */
805static bool team_queue_override_transmit(struct team *team, struct sk_buff *skb)
806{
807 struct list_head *qom_list;
808 struct team_port *port;
809
810 if (!team->queue_override_enabled || !skb->queue_mapping)
811 return false;
812 qom_list = __team_get_qom_list(team, skb->queue_mapping);
813 list_for_each_entry_rcu(port, qom_list, qom_list) {
814 if (!team_dev_queue_xmit(team, port, skb))
815 return true;
816 }
817 return false;
818}
819
820static void __team_queue_override_port_del(struct team *team,
821 struct team_port *port)
822{
Jiri Pirko6c31ff32013-06-10 17:42:23 +0200823 if (!port->queue_id)
824 return;
Jiri Pirko8ff51052012-07-27 06:28:55 +0000825 list_del_rcu(&port->qom_list);
Jiri Pirko8ff51052012-07-27 06:28:55 +0000826}
827
828static bool team_queue_override_port_has_gt_prio_than(struct team_port *port,
829 struct team_port *cur)
830{
831 if (port->priority < cur->priority)
832 return true;
833 if (port->priority > cur->priority)
834 return false;
835 if (port->index < cur->index)
836 return true;
837 return false;
838}
839
840static void __team_queue_override_port_add(struct team *team,
841 struct team_port *port)
842{
843 struct team_port *cur;
844 struct list_head *qom_list;
845 struct list_head *node;
846
Jiri Pirko6c31ff32013-06-10 17:42:23 +0200847 if (!port->queue_id)
Jiri Pirko8ff51052012-07-27 06:28:55 +0000848 return;
Jiri Pirko8ff51052012-07-27 06:28:55 +0000849 qom_list = __team_get_qom_list(team, port->queue_id);
850 node = qom_list;
851 list_for_each_entry(cur, qom_list, qom_list) {
852 if (team_queue_override_port_has_gt_prio_than(port, cur))
853 break;
854 node = &cur->qom_list;
855 }
856 list_add_tail_rcu(&port->qom_list, node);
857}
858
859static void __team_queue_override_enabled_check(struct team *team)
860{
861 struct team_port *port;
862 bool enabled = false;
863
864 list_for_each_entry(port, &team->port_list, list) {
Jiri Pirko6c31ff32013-06-10 17:42:23 +0200865 if (port->queue_id) {
Jiri Pirko8ff51052012-07-27 06:28:55 +0000866 enabled = true;
867 break;
868 }
869 }
870 if (enabled == team->queue_override_enabled)
871 return;
872 netdev_dbg(team->dev, "%s queue override\n",
873 enabled ? "Enabling" : "Disabling");
874 team->queue_override_enabled = enabled;
875}
876
Jiri Pirko6c31ff32013-06-10 17:42:23 +0200877static void team_queue_override_port_prio_changed(struct team *team,
878 struct team_port *port)
Jiri Pirko8ff51052012-07-27 06:28:55 +0000879{
Jiri Pirko6c31ff32013-06-10 17:42:23 +0200880 if (!port->queue_id || team_port_enabled(port))
881 return;
Jiri Pirko8ff51052012-07-27 06:28:55 +0000882 __team_queue_override_port_del(team, port);
883 __team_queue_override_port_add(team, port);
884 __team_queue_override_enabled_check(team);
885}
886
Jiri Pirko6c31ff32013-06-10 17:42:23 +0200887static void team_queue_override_port_change_queue_id(struct team *team,
888 struct team_port *port,
889 u16 new_queue_id)
890{
891 if (team_port_enabled(port)) {
892 __team_queue_override_port_del(team, port);
893 port->queue_id = new_queue_id;
894 __team_queue_override_port_add(team, port);
895 __team_queue_override_enabled_check(team);
896 } else {
897 port->queue_id = new_queue_id;
898 }
899}
900
901static void team_queue_override_port_add(struct team *team,
902 struct team_port *port)
903{
904 __team_queue_override_port_add(team, port);
905 __team_queue_override_enabled_check(team);
906}
907
908static void team_queue_override_port_del(struct team *team,
909 struct team_port *port)
910{
911 __team_queue_override_port_del(team, port);
912 __team_queue_override_enabled_check(team);
913}
914
Jiri Pirko8ff51052012-07-27 06:28:55 +0000915
Jiri Pirko3d249d42011-11-11 22:16:48 +0000916/****************
917 * Port handling
918 ****************/
919
920static bool team_port_find(const struct team *team,
921 const struct team_port *port)
922{
923 struct team_port *cur;
924
925 list_for_each_entry(cur, &team->port_list, list)
926 if (cur == port)
927 return true;
928 return false;
929}
930
Jiri Pirko19a0b582012-04-20 04:42:05 +0000931/*
932 * Enable/disable port by adding to enabled port hashlist and setting
933 * port->index (Might be racy so reader could see incorrect ifindex when
934 * processing a flying packet, but that is not a problem). Write guarded
935 * by team->lock.
936 */
937static void team_port_enable(struct team *team,
938 struct team_port *port)
939{
940 if (team_port_enabled(port))
941 return;
942 port->index = team->en_port_count++;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000943 hlist_add_head_rcu(&port->hlist,
944 team_port_index_hash(team, port->index));
Jiri Pirko122bb042012-06-26 06:52:45 +0000945 team_adjust_ops(team);
Jiri Pirko6c31ff32013-06-10 17:42:23 +0200946 team_queue_override_port_add(team, port);
Jiri Pirko4bccfd12012-06-19 05:54:16 +0000947 if (team->ops.port_enabled)
948 team->ops.port_enabled(team, port);
Jiri Pirkofc423ff2013-07-20 12:13:52 +0200949 team_notify_peers(team);
Jiri Pirko492b2002013-07-20 12:13:54 +0200950 team_mcast_rejoin(team);
Jiri Pirko3a0d6c52015-12-03 12:12:18 +0100951 team_lower_state_changed(port);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000952}
953
954static void __reconstruct_port_hlist(struct team *team, int rm_index)
955{
956 int i;
957 struct team_port *port;
958
Jiri Pirko19a0b582012-04-20 04:42:05 +0000959 for (i = rm_index + 1; i < team->en_port_count; i++) {
Jiri Pirko3d249d42011-11-11 22:16:48 +0000960 port = team_get_port_by_index(team, i);
961 hlist_del_rcu(&port->hlist);
962 port->index--;
963 hlist_add_head_rcu(&port->hlist,
964 team_port_index_hash(team, port->index));
965 }
966}
967
Jiri Pirko19a0b582012-04-20 04:42:05 +0000968static void team_port_disable(struct team *team,
969 struct team_port *port)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000970{
Jiri Pirko19a0b582012-04-20 04:42:05 +0000971 if (!team_port_enabled(port))
972 return;
Jiri Pirko4bccfd12012-06-19 05:54:16 +0000973 if (team->ops.port_disabled)
974 team->ops.port_disabled(team, port);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000975 hlist_del_rcu(&port->hlist);
Jiri Pirko122bb042012-06-26 06:52:45 +0000976 __reconstruct_port_hlist(team, port->index);
Jiri Pirko19a0b582012-04-20 04:42:05 +0000977 port->index = -1;
Jiri Pirko122bb042012-06-26 06:52:45 +0000978 team->en_port_count--;
Jiri Pirko735d3812013-06-10 17:42:25 +0200979 team_queue_override_port_del(team, port);
980 team_adjust_ops(team);
Jiri Pirkofc423ff2013-07-20 12:13:52 +0200981 team_notify_peers(team);
Jiri Pirko492b2002013-07-20 12:13:54 +0200982 team_mcast_rejoin(team);
Jiri Pirko3a0d6c52015-12-03 12:12:18 +0100983 team_lower_state_changed(port);
Jiri Pirko3d249d42011-11-11 22:16:48 +0000984}
985
Tom Herberta1882222015-12-14 11:19:43 -0800986#define TEAM_VLAN_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
Jiri Pirko3d249d42011-11-11 22:16:48 +0000987 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
988 NETIF_F_HIGHDMA | NETIF_F_LRO)
989
Eran Ben Elisha3268e5c2015-12-17 16:11:55 +0200990#define TEAM_ENC_FEATURES (NETIF_F_HW_CSUM | NETIF_F_SG | \
991 NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
992
Xin Long16cf72b2017-04-06 13:41:28 +0800993static void __team_compute_features(struct team *team)
Jiri Pirko3d249d42011-11-11 22:16:48 +0000994{
995 struct team_port *port;
Michal Kubeček36259202014-05-20 08:29:45 +0200996 u32 vlan_features = TEAM_VLAN_FEATURES & NETIF_F_ALL_FOR_ALL;
Eran Ben Elisha3268e5c2015-12-17 16:11:55 +0200997 netdev_features_t enc_features = TEAM_ENC_FEATURES;
Jiri Pirko3d249d42011-11-11 22:16:48 +0000998 unsigned short max_hard_header_len = ETH_HLEN;
Eric Dumazet02875872014-10-05 18:38:35 -0700999 unsigned int dst_release_flag = IFF_XMIT_DST_RELEASE |
1000 IFF_XMIT_DST_RELEASE_PERM;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001001
1002 list_for_each_entry(port, &team->port_list, list) {
1003 vlan_features = netdev_increment_features(vlan_features,
1004 port->dev->vlan_features,
1005 TEAM_VLAN_FEATURES);
Eran Ben Elisha3268e5c2015-12-17 16:11:55 +02001006 enc_features =
1007 netdev_increment_features(enc_features,
1008 port->dev->hw_enc_features,
1009 TEAM_ENC_FEATURES);
1010
Jiri Pirko3d249d42011-11-11 22:16:48 +00001011
Jiri Pirkodc905952012-07-18 07:39:38 +00001012 dst_release_flag &= port->dev->priv_flags;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001013 if (port->dev->hard_header_len > max_hard_header_len)
1014 max_hard_header_len = port->dev->hard_header_len;
1015 }
1016
1017 team->dev->vlan_features = vlan_features;
Eran Ben Elisha3268e5c2015-12-17 16:11:55 +02001018 team->dev->hw_enc_features = enc_features | NETIF_F_GSO_ENCAP_ALL;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001019 team->dev->hard_header_len = max_hard_header_len;
1020
Eric Dumazet02875872014-10-05 18:38:35 -07001021 team->dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
1022 if (dst_release_flag == (IFF_XMIT_DST_RELEASE | IFF_XMIT_DST_RELEASE_PERM))
1023 team->dev->priv_flags |= IFF_XMIT_DST_RELEASE;
Ivan Veceraf6988cb2016-05-25 21:21:52 +02001024}
Jiri Pirkodc905952012-07-18 07:39:38 +00001025
Jiri Pirko3d249d42011-11-11 22:16:48 +00001026static void team_compute_features(struct team *team)
1027{
Jiri Pirko61dc3462011-11-16 11:09:08 +00001028 mutex_lock(&team->lock);
Xin Long16cf72b2017-04-06 13:41:28 +08001029 __team_compute_features(team);
Jiri Pirko61dc3462011-11-16 11:09:08 +00001030 mutex_unlock(&team->lock);
Ivan Veceraf6988cb2016-05-25 21:21:52 +02001031 netdev_change_features(team->dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001032}
1033
1034static int team_port_enter(struct team *team, struct team_port *port)
1035{
1036 int err = 0;
1037
1038 dev_hold(team->dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001039 if (team->ops.port_enter) {
1040 err = team->ops.port_enter(team, port);
1041 if (err) {
1042 netdev_err(team->dev, "Device %s failed to enter team mode\n",
1043 port->dev->name);
1044 goto err_port_enter;
1045 }
1046 }
1047
1048 return 0;
1049
1050err_port_enter:
Jiri Pirko3d249d42011-11-11 22:16:48 +00001051 dev_put(team->dev);
1052
1053 return err;
1054}
1055
1056static void team_port_leave(struct team *team, struct team_port *port)
1057{
1058 if (team->ops.port_leave)
1059 team->ops.port_leave(team, port);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001060 dev_put(team->dev);
1061}
1062
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001063#ifdef CONFIG_NET_POLL_CONTROLLER
Eric W. Biedermana8779ec2014-03-27 15:36:38 -07001064static int team_port_enable_netpoll(struct team *team, struct team_port *port)
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001065{
1066 struct netpoll *np;
1067 int err;
1068
stephen hemminger0fb52a22013-07-24 11:52:44 -07001069 if (!team->dev->npinfo)
1070 return 0;
1071
Eric W. Biedermana8779ec2014-03-27 15:36:38 -07001072 np = kzalloc(sizeof(*np), GFP_KERNEL);
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001073 if (!np)
1074 return -ENOMEM;
1075
Eric W. Biedermana8779ec2014-03-27 15:36:38 -07001076 err = __netpoll_setup(np, port->dev);
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001077 if (err) {
1078 kfree(np);
1079 return err;
1080 }
1081 port->np = np;
1082 return err;
1083}
1084
1085static void team_port_disable_netpoll(struct team_port *port)
1086{
1087 struct netpoll *np = port->np;
1088
1089 if (!np)
1090 return;
1091 port->np = NULL;
1092
1093 /* Wait for transmitting packets to finish before freeing. */
1094 synchronize_rcu_bh();
1095 __netpoll_cleanup(np);
1096 kfree(np);
1097}
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001098#else
Eric W. Biedermana8779ec2014-03-27 15:36:38 -07001099static int team_port_enable_netpoll(struct team *team, struct team_port *port)
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001100{
1101 return 0;
1102}
1103static void team_port_disable_netpoll(struct team_port *port)
1104{
1105}
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001106#endif
1107
Jiri Pirko8fd72852015-12-03 12:12:13 +01001108static int team_upper_dev_link(struct team *team, struct team_port *port)
Jiri Pirkod7d3c052014-08-25 21:38:27 +02001109{
Jiri Pirko8fd72852015-12-03 12:12:13 +01001110 struct netdev_lag_upper_info lag_upper_info;
Jiri Pirkod7d3c052014-08-25 21:38:27 +02001111 int err;
1112
Jiri Pirko8fd72852015-12-03 12:12:13 +01001113 lag_upper_info.tx_type = team->mode->lag_tx_type;
1114 err = netdev_master_upper_dev_link(port->dev, team->dev, NULL,
David Ahern42ab19e2017-10-04 17:48:47 -07001115 &lag_upper_info, NULL);
Jiri Pirkod7d3c052014-08-25 21:38:27 +02001116 if (err)
1117 return err;
Jiri Pirko8fd72852015-12-03 12:12:13 +01001118 port->dev->priv_flags |= IFF_TEAM_PORT;
Jiri Pirkod7d3c052014-08-25 21:38:27 +02001119 return 0;
1120}
1121
Jiri Pirko8fd72852015-12-03 12:12:13 +01001122static void team_upper_dev_unlink(struct team *team, struct team_port *port)
Jiri Pirkod7d3c052014-08-25 21:38:27 +02001123{
Jiri Pirko8fd72852015-12-03 12:12:13 +01001124 netdev_upper_dev_unlink(port->dev, team->dev);
1125 port->dev->priv_flags &= ~IFF_TEAM_PORT;
Jiri Pirkod7d3c052014-08-25 21:38:27 +02001126}
1127
Jiri Pirko10f3f512012-09-21 01:51:59 +00001128static void __team_port_change_port_added(struct team_port *port, bool linkup);
Jiri Pirko1d76efe2012-08-17 04:00:48 +00001129static int team_dev_type_check_change(struct net_device *dev,
1130 struct net_device *port_dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001131
1132static int team_port_add(struct team *team, struct net_device *port_dev)
1133{
1134 struct net_device *dev = team->dev;
1135 struct team_port *port;
1136 char *portname = port_dev->name;
1137 int err;
1138
Jiri Pirko1d76efe2012-08-17 04:00:48 +00001139 if (port_dev->flags & IFF_LOOPBACK) {
1140 netdev_err(dev, "Device %s is loopback device. Loopback devices can't be added as a team port\n",
Jiri Pirko3d249d42011-11-11 22:16:48 +00001141 portname);
1142 return -EINVAL;
1143 }
1144
1145 if (team_port_exists(port_dev)) {
1146 netdev_err(dev, "Device %s is already a port "
1147 "of a team device\n", portname);
1148 return -EBUSY;
1149 }
1150
Jiri Pirko2c33bb32012-08-23 03:26:53 +00001151 if (port_dev->features & NETIF_F_VLAN_CHALLENGED &&
1152 vlan_uses_dev(dev)) {
1153 netdev_err(dev, "Device %s is VLAN challenged and team device has VLAN set up\n",
1154 portname);
1155 return -EPERM;
1156 }
1157
Jiri Pirko1d76efe2012-08-17 04:00:48 +00001158 err = team_dev_type_check_change(dev, port_dev);
1159 if (err)
1160 return err;
1161
Jiri Pirko3d249d42011-11-11 22:16:48 +00001162 if (port_dev->flags & IFF_UP) {
1163 netdev_err(dev, "Device %s is up. Set it down before adding it as a team port\n",
1164 portname);
1165 return -EBUSY;
1166 }
1167
Jiri Pirko5149ee52012-06-19 05:54:05 +00001168 port = kzalloc(sizeof(struct team_port) + team->mode->port_priv_size,
1169 GFP_KERNEL);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001170 if (!port)
1171 return -ENOMEM;
1172
1173 port->dev = port_dev;
1174 port->team = team;
Jiri Pirko8ff51052012-07-27 06:28:55 +00001175 INIT_LIST_HEAD(&port->qom_list);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001176
1177 port->orig.mtu = port_dev->mtu;
1178 err = dev_set_mtu(port_dev, dev->mtu);
1179 if (err) {
1180 netdev_dbg(dev, "Error %d calling dev_set_mtu\n", err);
1181 goto err_set_mtu;
1182 }
1183
Jiri Pirko1d76efe2012-08-17 04:00:48 +00001184 memcpy(port->orig.dev_addr, port_dev->dev_addr, port_dev->addr_len);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001185
1186 err = team_port_enter(team, port);
1187 if (err) {
1188 netdev_err(dev, "Device %s failed to enter team mode\n",
1189 portname);
1190 goto err_port_enter;
1191 }
1192
1193 err = dev_open(port_dev);
1194 if (err) {
1195 netdev_dbg(dev, "Device %s opening failed\n",
1196 portname);
1197 goto err_dev_open;
1198 }
1199
Ido Schimmel942f64c2016-06-20 11:53:20 +03001200 netif_addr_lock_bh(dev);
Xin Longcb41c992016-03-30 10:58:39 +08001201 dev_uc_sync_multiple(port_dev, dev);
1202 dev_mc_sync_multiple(port_dev, dev);
Ido Schimmel942f64c2016-06-20 11:53:20 +03001203 netif_addr_unlock_bh(dev);
Xin Longcb41c992016-03-30 10:58:39 +08001204
Jiri Pirko57459182011-12-08 04:11:20 +00001205 err = vlan_vids_add_by_dev(port_dev, dev);
1206 if (err) {
1207 netdev_err(dev, "Failed to add vlan ids to device %s\n",
1208 portname);
1209 goto err_vids_add;
1210 }
1211
Eric W. Biedermana8779ec2014-03-27 15:36:38 -07001212 err = team_port_enable_netpoll(team, port);
stephen hemminger0fb52a22013-07-24 11:52:44 -07001213 if (err) {
1214 netdev_err(dev, "Failed to enable netpoll on device %s\n",
1215 portname);
1216 goto err_enable_netpoll;
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001217 }
1218
Michal Kubečekfbe168b2014-11-13 07:54:50 +01001219 if (!(dev->features & NETIF_F_LRO))
1220 dev_disable_lro(port_dev);
1221
Jiri Pirko3d249d42011-11-11 22:16:48 +00001222 err = netdev_rx_handler_register(port_dev, team_handle_frame,
1223 port);
1224 if (err) {
1225 netdev_err(dev, "Device %s failed to register rx_handler\n",
1226 portname);
1227 goto err_handler_register;
1228 }
1229
Jiri Pirko8fd72852015-12-03 12:12:13 +01001230 err = team_upper_dev_link(team, port);
Jiri Pirkod7d3c052014-08-25 21:38:27 +02001231 if (err) {
1232 netdev_err(dev, "Device %s failed to set upper link\n",
1233 portname);
1234 goto err_set_upper_link;
1235 }
1236
Jiri Pirko35b384b2012-06-19 05:54:19 +00001237 err = __team_option_inst_add_port(team, port);
Jiri Pirko80f7c662012-04-10 05:15:42 +00001238 if (err) {
1239 netdev_err(dev, "Device %s failed to add per-port options\n",
1240 portname);
1241 goto err_option_port_add;
1242 }
1243
Jiri Pirko19a0b582012-04-20 04:42:05 +00001244 port->index = -1;
Jiri Pirko19a0b582012-04-20 04:42:05 +00001245 list_add_tail_rcu(&port->list, &team->port_list);
Jiri Pirko72df9352013-06-08 15:00:54 +02001246 team_port_enable(team, port);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001247 __team_compute_features(team);
Jiri Pirko10f3f512012-09-21 01:51:59 +00001248 __team_port_change_port_added(port, !!netif_carrier_ok(port_dev));
Jiri Pirko35b384b2012-06-19 05:54:19 +00001249 __team_options_change_check(team);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001250
1251 netdev_info(dev, "Port device %s added\n", portname);
1252
1253 return 0;
1254
Jiri Pirko80f7c662012-04-10 05:15:42 +00001255err_option_port_add:
Jiri Pirko8fd72852015-12-03 12:12:13 +01001256 team_upper_dev_unlink(team, port);
Jiri Pirkod7d3c052014-08-25 21:38:27 +02001257
1258err_set_upper_link:
Jiri Pirko80f7c662012-04-10 05:15:42 +00001259 netdev_rx_handler_unregister(port_dev);
1260
Jiri Pirko3d249d42011-11-11 22:16:48 +00001261err_handler_register:
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001262 team_port_disable_netpoll(port);
1263
1264err_enable_netpoll:
Jiri Pirko57459182011-12-08 04:11:20 +00001265 vlan_vids_del_by_dev(port_dev, dev);
1266
1267err_vids_add:
Xin Longcb41c992016-03-30 10:58:39 +08001268 dev_uc_unsync(port_dev, dev);
1269 dev_mc_unsync(port_dev, dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001270 dev_close(port_dev);
1271
1272err_dev_open:
1273 team_port_leave(team, port);
Jiri Pirko1d76efe2012-08-17 04:00:48 +00001274 team_port_set_orig_dev_addr(port);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001275
1276err_port_enter:
1277 dev_set_mtu(port_dev, port->orig.mtu);
1278
1279err_set_mtu:
1280 kfree(port);
1281
1282 return err;
1283}
1284
Jiri Pirko10f3f512012-09-21 01:51:59 +00001285static void __team_port_change_port_removed(struct team_port *port);
1286
Jiri Pirko3d249d42011-11-11 22:16:48 +00001287static int team_port_del(struct team *team, struct net_device *port_dev)
1288{
1289 struct net_device *dev = team->dev;
1290 struct team_port *port;
1291 char *portname = port_dev->name;
1292
1293 port = team_port_get_rtnl(port_dev);
1294 if (!port || !team_port_find(team, port)) {
1295 netdev_err(dev, "Device %s does not act as a port of this team\n",
1296 portname);
1297 return -ENOENT;
1298 }
1299
Jiri Pirko19a0b582012-04-20 04:42:05 +00001300 team_port_disable(team, port);
1301 list_del_rcu(&port->list);
Jiri Pirko8fd72852015-12-03 12:12:13 +01001302 team_upper_dev_unlink(team, port);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001303 netdev_rx_handler_unregister(port_dev);
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001304 team_port_disable_netpoll(port);
Jiri Pirko57459182011-12-08 04:11:20 +00001305 vlan_vids_del_by_dev(port_dev, dev);
Vlad Yasevichba812762013-03-07 07:59:25 +00001306 dev_uc_unsync(port_dev, dev);
1307 dev_mc_unsync(port_dev, dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001308 dev_close(port_dev);
1309 team_port_leave(team, port);
Jiri Pirkoc3969d802013-02-01 08:17:25 +00001310
1311 __team_option_inst_mark_removed_port(team, port);
1312 __team_options_change_check(team);
1313 __team_option_inst_del_port(team, port);
1314 __team_port_change_port_removed(port);
1315
Jiri Pirko1d76efe2012-08-17 04:00:48 +00001316 team_port_set_orig_dev_addr(port);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001317 dev_set_mtu(port_dev, port->orig.mtu);
Jiri Pirkod80b35b2013-06-10 17:42:24 +02001318 kfree_rcu(port, rcu);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001319 netdev_info(dev, "Port device %s removed\n", portname);
1320 __team_compute_features(team);
1321
1322 return 0;
1323}
1324
1325
1326/*****************
1327 * Net device ops
1328 *****************/
1329
Jiri Pirko80f7c662012-04-10 05:15:42 +00001330static int team_mode_option_get(struct team *team, struct team_gsetter_ctx *ctx)
Jiri Pirko3d249d42011-11-11 22:16:48 +00001331{
Jiri Pirkod299cd52012-06-19 05:54:04 +00001332 ctx->data.str_val = team->mode->kind;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001333 return 0;
1334}
1335
Jiri Pirko80f7c662012-04-10 05:15:42 +00001336static int team_mode_option_set(struct team *team, struct team_gsetter_ctx *ctx)
Jiri Pirko3d249d42011-11-11 22:16:48 +00001337{
Jiri Pirko80f7c662012-04-10 05:15:42 +00001338 return team_change_mode(team, ctx->data.str_val);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001339}
1340
Jiri Pirkofc423ff2013-07-20 12:13:52 +02001341static int team_notify_peers_count_get(struct team *team,
1342 struct team_gsetter_ctx *ctx)
1343{
1344 ctx->data.u32_val = team->notify_peers.count;
1345 return 0;
1346}
1347
1348static int team_notify_peers_count_set(struct team *team,
1349 struct team_gsetter_ctx *ctx)
1350{
1351 team->notify_peers.count = ctx->data.u32_val;
1352 return 0;
1353}
1354
1355static int team_notify_peers_interval_get(struct team *team,
1356 struct team_gsetter_ctx *ctx)
1357{
1358 ctx->data.u32_val = team->notify_peers.interval;
1359 return 0;
1360}
1361
1362static int team_notify_peers_interval_set(struct team *team,
1363 struct team_gsetter_ctx *ctx)
1364{
1365 team->notify_peers.interval = ctx->data.u32_val;
1366 return 0;
1367}
1368
Jiri Pirko492b2002013-07-20 12:13:54 +02001369static int team_mcast_rejoin_count_get(struct team *team,
1370 struct team_gsetter_ctx *ctx)
1371{
1372 ctx->data.u32_val = team->mcast_rejoin.count;
1373 return 0;
1374}
1375
1376static int team_mcast_rejoin_count_set(struct team *team,
1377 struct team_gsetter_ctx *ctx)
1378{
1379 team->mcast_rejoin.count = ctx->data.u32_val;
1380 return 0;
1381}
1382
1383static int team_mcast_rejoin_interval_get(struct team *team,
1384 struct team_gsetter_ctx *ctx)
1385{
1386 ctx->data.u32_val = team->mcast_rejoin.interval;
1387 return 0;
1388}
1389
1390static int team_mcast_rejoin_interval_set(struct team *team,
1391 struct team_gsetter_ctx *ctx)
1392{
1393 team->mcast_rejoin.interval = ctx->data.u32_val;
1394 return 0;
1395}
1396
Jiri Pirkoacd69962012-04-20 04:42:06 +00001397static int team_port_en_option_get(struct team *team,
1398 struct team_gsetter_ctx *ctx)
1399{
Jiri Pirko85d59a82012-06-19 05:54:10 +00001400 struct team_port *port = ctx->info->port;
1401
1402 ctx->data.bool_val = team_port_enabled(port);
Jiri Pirkoacd69962012-04-20 04:42:06 +00001403 return 0;
1404}
1405
1406static int team_port_en_option_set(struct team *team,
1407 struct team_gsetter_ctx *ctx)
1408{
Jiri Pirko85d59a82012-06-19 05:54:10 +00001409 struct team_port *port = ctx->info->port;
1410
Jiri Pirkoacd69962012-04-20 04:42:06 +00001411 if (ctx->data.bool_val)
Jiri Pirko85d59a82012-06-19 05:54:10 +00001412 team_port_enable(team, port);
Jiri Pirkoacd69962012-04-20 04:42:06 +00001413 else
Jiri Pirko85d59a82012-06-19 05:54:10 +00001414 team_port_disable(team, port);
Jiri Pirkoacd69962012-04-20 04:42:06 +00001415 return 0;
1416}
1417
Jiri Pirko71472ec2012-04-10 05:15:44 +00001418static int team_user_linkup_option_get(struct team *team,
1419 struct team_gsetter_ctx *ctx)
1420{
Jiri Pirko85d59a82012-06-19 05:54:10 +00001421 struct team_port *port = ctx->info->port;
1422
1423 ctx->data.bool_val = port->user.linkup;
Jiri Pirko71472ec2012-04-10 05:15:44 +00001424 return 0;
1425}
1426
Jiri Pirkof5e0d342013-11-28 18:01:38 +01001427static void __team_carrier_check(struct team *team);
1428
Jiri Pirko71472ec2012-04-10 05:15:44 +00001429static int team_user_linkup_option_set(struct team *team,
1430 struct team_gsetter_ctx *ctx)
1431{
Jiri Pirko85d59a82012-06-19 05:54:10 +00001432 struct team_port *port = ctx->info->port;
1433
1434 port->user.linkup = ctx->data.bool_val;
1435 team_refresh_port_linkup(port);
Jiri Pirkof5e0d342013-11-28 18:01:38 +01001436 __team_carrier_check(port->team);
Jiri Pirko71472ec2012-04-10 05:15:44 +00001437 return 0;
1438}
1439
1440static int team_user_linkup_en_option_get(struct team *team,
1441 struct team_gsetter_ctx *ctx)
1442{
Jiri Pirko85d59a82012-06-19 05:54:10 +00001443 struct team_port *port = ctx->info->port;
Jiri Pirko71472ec2012-04-10 05:15:44 +00001444
1445 ctx->data.bool_val = port->user.linkup_enabled;
1446 return 0;
1447}
1448
1449static int team_user_linkup_en_option_set(struct team *team,
1450 struct team_gsetter_ctx *ctx)
1451{
Jiri Pirko85d59a82012-06-19 05:54:10 +00001452 struct team_port *port = ctx->info->port;
Jiri Pirko71472ec2012-04-10 05:15:44 +00001453
1454 port->user.linkup_enabled = ctx->data.bool_val;
Jiri Pirko85d59a82012-06-19 05:54:10 +00001455 team_refresh_port_linkup(port);
Jiri Pirkof5e0d342013-11-28 18:01:38 +01001456 __team_carrier_check(port->team);
Jiri Pirko71472ec2012-04-10 05:15:44 +00001457 return 0;
1458}
1459
Jiri Pirkoa86fc6b2012-07-27 06:28:54 +00001460static int team_priority_option_get(struct team *team,
1461 struct team_gsetter_ctx *ctx)
1462{
1463 struct team_port *port = ctx->info->port;
1464
1465 ctx->data.s32_val = port->priority;
1466 return 0;
1467}
1468
1469static int team_priority_option_set(struct team *team,
1470 struct team_gsetter_ctx *ctx)
1471{
1472 struct team_port *port = ctx->info->port;
Jiri Pirko6c31ff32013-06-10 17:42:23 +02001473 s32 priority = ctx->data.s32_val;
Jiri Pirkoa86fc6b2012-07-27 06:28:54 +00001474
Jiri Pirko6c31ff32013-06-10 17:42:23 +02001475 if (port->priority == priority)
1476 return 0;
1477 port->priority = priority;
1478 team_queue_override_port_prio_changed(team, port);
Jiri Pirkoa86fc6b2012-07-27 06:28:54 +00001479 return 0;
1480}
1481
Jiri Pirko8ff51052012-07-27 06:28:55 +00001482static int team_queue_id_option_get(struct team *team,
1483 struct team_gsetter_ctx *ctx)
1484{
1485 struct team_port *port = ctx->info->port;
1486
1487 ctx->data.u32_val = port->queue_id;
1488 return 0;
1489}
1490
1491static int team_queue_id_option_set(struct team *team,
1492 struct team_gsetter_ctx *ctx)
1493{
1494 struct team_port *port = ctx->info->port;
Jiri Pirko6c31ff32013-06-10 17:42:23 +02001495 u16 new_queue_id = ctx->data.u32_val;
Jiri Pirko8ff51052012-07-27 06:28:55 +00001496
Jiri Pirko6c31ff32013-06-10 17:42:23 +02001497 if (port->queue_id == new_queue_id)
Jiri Pirko8ff51052012-07-27 06:28:55 +00001498 return 0;
Jiri Pirko6c31ff32013-06-10 17:42:23 +02001499 if (new_queue_id >= team->dev->real_num_tx_queues)
Jiri Pirko8ff51052012-07-27 06:28:55 +00001500 return -EINVAL;
Jiri Pirko6c31ff32013-06-10 17:42:23 +02001501 team_queue_override_port_change_queue_id(team, port, new_queue_id);
Jiri Pirko8ff51052012-07-27 06:28:55 +00001502 return 0;
1503}
1504
Jiri Pirko358b8382011-11-16 11:09:09 +00001505static const struct team_option team_options[] = {
Jiri Pirko3d249d42011-11-11 22:16:48 +00001506 {
1507 .name = "mode",
1508 .type = TEAM_OPTION_TYPE_STRING,
1509 .getter = team_mode_option_get,
1510 .setter = team_mode_option_set,
1511 },
Jiri Pirko71472ec2012-04-10 05:15:44 +00001512 {
Jiri Pirkofc423ff2013-07-20 12:13:52 +02001513 .name = "notify_peers_count",
1514 .type = TEAM_OPTION_TYPE_U32,
1515 .getter = team_notify_peers_count_get,
1516 .setter = team_notify_peers_count_set,
1517 },
1518 {
1519 .name = "notify_peers_interval",
1520 .type = TEAM_OPTION_TYPE_U32,
1521 .getter = team_notify_peers_interval_get,
1522 .setter = team_notify_peers_interval_set,
1523 },
1524 {
Jiri Pirko492b2002013-07-20 12:13:54 +02001525 .name = "mcast_rejoin_count",
1526 .type = TEAM_OPTION_TYPE_U32,
1527 .getter = team_mcast_rejoin_count_get,
1528 .setter = team_mcast_rejoin_count_set,
1529 },
1530 {
1531 .name = "mcast_rejoin_interval",
1532 .type = TEAM_OPTION_TYPE_U32,
1533 .getter = team_mcast_rejoin_interval_get,
1534 .setter = team_mcast_rejoin_interval_set,
1535 },
1536 {
Jiri Pirkoacd69962012-04-20 04:42:06 +00001537 .name = "enabled",
1538 .type = TEAM_OPTION_TYPE_BOOL,
1539 .per_port = true,
1540 .getter = team_port_en_option_get,
1541 .setter = team_port_en_option_set,
1542 },
1543 {
Jiri Pirko71472ec2012-04-10 05:15:44 +00001544 .name = "user_linkup",
1545 .type = TEAM_OPTION_TYPE_BOOL,
1546 .per_port = true,
1547 .getter = team_user_linkup_option_get,
1548 .setter = team_user_linkup_option_set,
1549 },
1550 {
1551 .name = "user_linkup_enabled",
1552 .type = TEAM_OPTION_TYPE_BOOL,
1553 .per_port = true,
1554 .getter = team_user_linkup_en_option_get,
1555 .setter = team_user_linkup_en_option_set,
1556 },
Jiri Pirkoa86fc6b2012-07-27 06:28:54 +00001557 {
1558 .name = "priority",
1559 .type = TEAM_OPTION_TYPE_S32,
1560 .per_port = true,
1561 .getter = team_priority_option_get,
1562 .setter = team_priority_option_set,
1563 },
Jiri Pirko8ff51052012-07-27 06:28:55 +00001564 {
1565 .name = "queue_id",
1566 .type = TEAM_OPTION_TYPE_U32,
1567 .per_port = true,
1568 .getter = team_queue_id_option_get,
1569 .setter = team_queue_id_option_set,
1570 },
Jiri Pirko3d249d42011-11-11 22:16:48 +00001571};
1572
Jiri Pirko6c85f2b2012-07-20 02:28:51 +00001573
Jiri Pirko3d249d42011-11-11 22:16:48 +00001574static int team_init(struct net_device *dev)
1575{
1576 struct team *team = netdev_priv(dev);
1577 int i;
Jiri Pirko358b8382011-11-16 11:09:09 +00001578 int err;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001579
1580 team->dev = dev;
Jiri Pirko61dc3462011-11-16 11:09:08 +00001581 mutex_init(&team->lock);
Jiri Pirkod299cd52012-06-19 05:54:04 +00001582 team_set_no_mode(team);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001583
WANG Cong1c213bd2014-02-13 11:46:28 -08001584 team->pcpu_stats = netdev_alloc_pcpu_stats(struct team_pcpu_stats);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001585 if (!team->pcpu_stats)
1586 return -ENOMEM;
1587
1588 for (i = 0; i < TEAM_PORT_HASHENTRIES; i++)
Jiri Pirko19a0b582012-04-20 04:42:05 +00001589 INIT_HLIST_HEAD(&team->en_port_hlist[i]);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001590 INIT_LIST_HEAD(&team->port_list);
Jiri Pirko8ff51052012-07-27 06:28:55 +00001591 err = team_queue_override_init(team);
1592 if (err)
1593 goto err_team_queue_override_init;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001594
1595 team_adjust_ops(team);
1596
1597 INIT_LIST_HEAD(&team->option_list);
Jiri Pirko80f7c662012-04-10 05:15:42 +00001598 INIT_LIST_HEAD(&team->option_inst_list);
Jiri Pirkofc423ff2013-07-20 12:13:52 +02001599
1600 team_notify_peers_init(team);
Jiri Pirko492b2002013-07-20 12:13:54 +02001601 team_mcast_rejoin_init(team);
Jiri Pirkofc423ff2013-07-20 12:13:52 +02001602
Jiri Pirko358b8382011-11-16 11:09:09 +00001603 err = team_options_register(team, team_options, ARRAY_SIZE(team_options));
1604 if (err)
1605 goto err_options_register;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001606 netif_carrier_off(dev);
1607
Eric Dumazetd3fff6c2016-06-09 07:45:12 -07001608 netdev_lockdep_set_classes(dev);
Jiri Pirko6c85f2b2012-07-20 02:28:51 +00001609
Jiri Pirko3d249d42011-11-11 22:16:48 +00001610 return 0;
Jiri Pirko358b8382011-11-16 11:09:09 +00001611
1612err_options_register:
Jiri Pirko492b2002013-07-20 12:13:54 +02001613 team_mcast_rejoin_fini(team);
Jiri Pirkofc423ff2013-07-20 12:13:52 +02001614 team_notify_peers_fini(team);
Jiri Pirko8ff51052012-07-27 06:28:55 +00001615 team_queue_override_fini(team);
1616err_team_queue_override_init:
Jiri Pirko358b8382011-11-16 11:09:09 +00001617 free_percpu(team->pcpu_stats);
1618
1619 return err;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001620}
1621
1622static void team_uninit(struct net_device *dev)
1623{
1624 struct team *team = netdev_priv(dev);
1625 struct team_port *port;
1626 struct team_port *tmp;
1627
Jiri Pirko61dc3462011-11-16 11:09:08 +00001628 mutex_lock(&team->lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001629 list_for_each_entry_safe(port, tmp, &team->port_list, list)
1630 team_port_del(team, port->dev);
1631
1632 __team_change_mode(team, NULL); /* cleanup */
1633 __team_options_unregister(team, team_options, ARRAY_SIZE(team_options));
Jiri Pirko492b2002013-07-20 12:13:54 +02001634 team_mcast_rejoin_fini(team);
Jiri Pirkofc423ff2013-07-20 12:13:52 +02001635 team_notify_peers_fini(team);
Jiri Pirko8ff51052012-07-27 06:28:55 +00001636 team_queue_override_fini(team);
Jiri Pirko61dc3462011-11-16 11:09:08 +00001637 mutex_unlock(&team->lock);
Xin Long16cf72b2017-04-06 13:41:28 +08001638 netdev_change_features(dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001639}
1640
1641static void team_destructor(struct net_device *dev)
1642{
1643 struct team *team = netdev_priv(dev);
1644
1645 free_percpu(team->pcpu_stats);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001646}
1647
1648static int team_open(struct net_device *dev)
1649{
Jiri Pirko3d249d42011-11-11 22:16:48 +00001650 return 0;
1651}
1652
1653static int team_close(struct net_device *dev)
1654{
Jiri Pirko3d249d42011-11-11 22:16:48 +00001655 return 0;
1656}
1657
1658/*
1659 * note: already called with rcu_read_lock
1660 */
1661static netdev_tx_t team_xmit(struct sk_buff *skb, struct net_device *dev)
1662{
1663 struct team *team = netdev_priv(dev);
Jiri Pirko8ff51052012-07-27 06:28:55 +00001664 bool tx_success;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001665 unsigned int len = skb->len;
1666
Jiri Pirko8ff51052012-07-27 06:28:55 +00001667 tx_success = team_queue_override_transmit(team, skb);
1668 if (!tx_success)
1669 tx_success = team->ops.transmit(team, skb);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001670 if (tx_success) {
1671 struct team_pcpu_stats *pcpu_stats;
1672
1673 pcpu_stats = this_cpu_ptr(team->pcpu_stats);
1674 u64_stats_update_begin(&pcpu_stats->syncp);
1675 pcpu_stats->tx_packets++;
1676 pcpu_stats->tx_bytes += len;
1677 u64_stats_update_end(&pcpu_stats->syncp);
1678 } else {
1679 this_cpu_inc(team->pcpu_stats->tx_dropped);
1680 }
1681
1682 return NETDEV_TX_OK;
1683}
1684
Jason Wangf663dd92014-01-10 16:18:26 +08001685static u16 team_select_queue(struct net_device *dev, struct sk_buff *skb,
Daniel Borkmann99932d42014-02-16 15:55:20 +01001686 void *accel_priv, select_queue_fallback_t fallback)
Jiri Pirko6c85f2b2012-07-20 02:28:51 +00001687{
1688 /*
1689 * This helper function exists to help dev_pick_tx get the correct
1690 * destination queue. Using a helper function skips a call to
1691 * skb_tx_hash and will put the skbs in the queue we expect on their
1692 * way down to the team driver.
1693 */
1694 u16 txq = skb_rx_queue_recorded(skb) ? skb_get_rx_queue(skb) : 0;
1695
1696 /*
1697 * Save the original txq to restore before passing to the driver
1698 */
1699 qdisc_skb_cb(skb)->slave_dev_queue_mapping = skb->queue_mapping;
1700
1701 if (unlikely(txq >= dev->real_num_tx_queues)) {
1702 do {
1703 txq -= dev->real_num_tx_queues;
1704 } while (txq >= dev->real_num_tx_queues);
1705 }
1706 return txq;
1707}
1708
Jiri Pirko3d249d42011-11-11 22:16:48 +00001709static void team_change_rx_flags(struct net_device *dev, int change)
1710{
1711 struct team *team = netdev_priv(dev);
1712 struct team_port *port;
1713 int inc;
1714
1715 rcu_read_lock();
1716 list_for_each_entry_rcu(port, &team->port_list, list) {
1717 if (change & IFF_PROMISC) {
1718 inc = dev->flags & IFF_PROMISC ? 1 : -1;
1719 dev_set_promiscuity(port->dev, inc);
1720 }
1721 if (change & IFF_ALLMULTI) {
1722 inc = dev->flags & IFF_ALLMULTI ? 1 : -1;
1723 dev_set_allmulti(port->dev, inc);
1724 }
1725 }
1726 rcu_read_unlock();
1727}
1728
1729static void team_set_rx_mode(struct net_device *dev)
1730{
1731 struct team *team = netdev_priv(dev);
1732 struct team_port *port;
1733
1734 rcu_read_lock();
1735 list_for_each_entry_rcu(port, &team->port_list, list) {
Vlad Yasevich72b27032013-04-15 09:54:26 +00001736 dev_uc_sync_multiple(port->dev, dev);
1737 dev_mc_sync_multiple(port->dev, dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001738 }
1739 rcu_read_unlock();
1740}
1741
1742static int team_set_mac_address(struct net_device *dev, void *p)
1743{
Jiri Pirko1d76efe2012-08-17 04:00:48 +00001744 struct sockaddr *addr = p;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001745 struct team *team = netdev_priv(dev);
1746 struct team_port *port;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001747
Jiri Pirko1d76efe2012-08-17 04:00:48 +00001748 if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data))
1749 return -EADDRNOTAVAIL;
1750 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
Jiri Pirko9215f432015-03-04 08:36:31 +01001751 mutex_lock(&team->lock);
1752 list_for_each_entry(port, &team->port_list, list)
Jiri Pirko1d76efe2012-08-17 04:00:48 +00001753 if (team->ops.port_change_dev_addr)
1754 team->ops.port_change_dev_addr(team, port);
Jiri Pirko9215f432015-03-04 08:36:31 +01001755 mutex_unlock(&team->lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001756 return 0;
1757}
1758
1759static int team_change_mtu(struct net_device *dev, int new_mtu)
1760{
1761 struct team *team = netdev_priv(dev);
1762 struct team_port *port;
1763 int err;
1764
1765 /*
1766 * Alhough this is reader, it's guarded by team lock. It's not possible
1767 * to traverse list in reverse under rcu_read_lock
1768 */
Jiri Pirko61dc3462011-11-16 11:09:08 +00001769 mutex_lock(&team->lock);
Jiri Pirko9d0d68f2014-05-29 20:46:17 +02001770 team->port_mtu_change_allowed = true;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001771 list_for_each_entry(port, &team->port_list, list) {
1772 err = dev_set_mtu(port->dev, new_mtu);
1773 if (err) {
1774 netdev_err(dev, "Device %s failed to change mtu",
1775 port->dev->name);
1776 goto unwind;
1777 }
1778 }
Jiri Pirko9d0d68f2014-05-29 20:46:17 +02001779 team->port_mtu_change_allowed = false;
Jiri Pirko61dc3462011-11-16 11:09:08 +00001780 mutex_unlock(&team->lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001781
1782 dev->mtu = new_mtu;
1783
1784 return 0;
1785
1786unwind:
1787 list_for_each_entry_continue_reverse(port, &team->port_list, list)
1788 dev_set_mtu(port->dev, dev->mtu);
Jiri Pirko9d0d68f2014-05-29 20:46:17 +02001789 team->port_mtu_change_allowed = false;
Jiri Pirko61dc3462011-11-16 11:09:08 +00001790 mutex_unlock(&team->lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001791
1792 return err;
1793}
1794
stephen hemmingerbc1f4472017-01-06 19:12:52 -08001795static void
Jiri Pirko3d249d42011-11-11 22:16:48 +00001796team_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats)
1797{
1798 struct team *team = netdev_priv(dev);
1799 struct team_pcpu_stats *p;
1800 u64 rx_packets, rx_bytes, rx_multicast, tx_packets, tx_bytes;
Jarod Wilsonbb63daf2016-02-01 18:51:06 -05001801 u32 rx_dropped = 0, tx_dropped = 0, rx_nohandler = 0;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001802 unsigned int start;
1803 int i;
1804
1805 for_each_possible_cpu(i) {
1806 p = per_cpu_ptr(team->pcpu_stats, i);
1807 do {
Eric W. Biederman57a77442014-03-13 21:26:42 -07001808 start = u64_stats_fetch_begin_irq(&p->syncp);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001809 rx_packets = p->rx_packets;
1810 rx_bytes = p->rx_bytes;
1811 rx_multicast = p->rx_multicast;
1812 tx_packets = p->tx_packets;
1813 tx_bytes = p->tx_bytes;
Eric W. Biederman57a77442014-03-13 21:26:42 -07001814 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
Jiri Pirko3d249d42011-11-11 22:16:48 +00001815
1816 stats->rx_packets += rx_packets;
1817 stats->rx_bytes += rx_bytes;
1818 stats->multicast += rx_multicast;
1819 stats->tx_packets += tx_packets;
1820 stats->tx_bytes += tx_bytes;
1821 /*
Jarod Wilsonbb63daf2016-02-01 18:51:06 -05001822 * rx_dropped, tx_dropped & rx_nohandler are u32,
1823 * updated without syncp protection.
Jiri Pirko3d249d42011-11-11 22:16:48 +00001824 */
1825 rx_dropped += p->rx_dropped;
1826 tx_dropped += p->tx_dropped;
Jarod Wilsonbb63daf2016-02-01 18:51:06 -05001827 rx_nohandler += p->rx_nohandler;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001828 }
1829 stats->rx_dropped = rx_dropped;
1830 stats->tx_dropped = tx_dropped;
Jarod Wilsonbb63daf2016-02-01 18:51:06 -05001831 stats->rx_nohandler = rx_nohandler;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001832}
1833
Patrick McHardy80d5c362013-04-19 02:04:28 +00001834static int team_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
Jiri Pirko3d249d42011-11-11 22:16:48 +00001835{
1836 struct team *team = netdev_priv(dev);
1837 struct team_port *port;
Jiri Pirko87002b02011-12-08 04:11:17 +00001838 int err;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001839
Jiri Pirko87002b02011-12-08 04:11:17 +00001840 /*
1841 * Alhough this is reader, it's guarded by team lock. It's not possible
1842 * to traverse list in reverse under rcu_read_lock
1843 */
1844 mutex_lock(&team->lock);
1845 list_for_each_entry(port, &team->port_list, list) {
Patrick McHardy80d5c362013-04-19 02:04:28 +00001846 err = vlan_vid_add(port->dev, proto, vid);
Jiri Pirko87002b02011-12-08 04:11:17 +00001847 if (err)
1848 goto unwind;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001849 }
Jiri Pirko87002b02011-12-08 04:11:17 +00001850 mutex_unlock(&team->lock);
Jiri Pirko8e586132011-12-08 19:52:37 -05001851
1852 return 0;
Jiri Pirko87002b02011-12-08 04:11:17 +00001853
1854unwind:
1855 list_for_each_entry_continue_reverse(port, &team->port_list, list)
Patrick McHardy80d5c362013-04-19 02:04:28 +00001856 vlan_vid_del(port->dev, proto, vid);
Jiri Pirko87002b02011-12-08 04:11:17 +00001857 mutex_unlock(&team->lock);
1858
1859 return err;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001860}
1861
Patrick McHardy80d5c362013-04-19 02:04:28 +00001862static int team_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
Jiri Pirko3d249d42011-11-11 22:16:48 +00001863{
1864 struct team *team = netdev_priv(dev);
1865 struct team_port *port;
1866
Ido Schimmel60a65312016-01-18 17:30:22 +02001867 mutex_lock(&team->lock);
1868 list_for_each_entry(port, &team->port_list, list)
Patrick McHardy80d5c362013-04-19 02:04:28 +00001869 vlan_vid_del(port->dev, proto, vid);
Ido Schimmel60a65312016-01-18 17:30:22 +02001870 mutex_unlock(&team->lock);
Jiri Pirko8e586132011-12-08 19:52:37 -05001871
1872 return 0;
Jiri Pirko3d249d42011-11-11 22:16:48 +00001873}
1874
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001875#ifdef CONFIG_NET_POLL_CONTROLLER
1876static void team_poll_controller(struct net_device *dev)
1877{
1878}
1879
1880static void __team_netpoll_cleanup(struct team *team)
1881{
1882 struct team_port *port;
1883
1884 list_for_each_entry(port, &team->port_list, list)
1885 team_port_disable_netpoll(port);
1886}
1887
1888static void team_netpoll_cleanup(struct net_device *dev)
1889{
1890 struct team *team = netdev_priv(dev);
1891
1892 mutex_lock(&team->lock);
1893 __team_netpoll_cleanup(team);
1894 mutex_unlock(&team->lock);
1895}
1896
1897static int team_netpoll_setup(struct net_device *dev,
Eric W. Biedermana8779ec2014-03-27 15:36:38 -07001898 struct netpoll_info *npifo)
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001899{
1900 struct team *team = netdev_priv(dev);
1901 struct team_port *port;
Jiri Pirko3324d022012-07-24 01:20:48 +00001902 int err = 0;
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001903
1904 mutex_lock(&team->lock);
1905 list_for_each_entry(port, &team->port_list, list) {
Eric W. Biedermana8779ec2014-03-27 15:36:38 -07001906 err = team_port_enable_netpoll(team, port);
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001907 if (err) {
1908 __team_netpoll_cleanup(team);
1909 break;
1910 }
1911 }
1912 mutex_unlock(&team->lock);
1913 return err;
1914}
1915#endif
1916
David Ahern33eaf2a2017-10-04 17:48:46 -07001917static int team_add_slave(struct net_device *dev, struct net_device *port_dev,
1918 struct netlink_ext_ack *extack)
Jiri Pirko3d249d42011-11-11 22:16:48 +00001919{
1920 struct team *team = netdev_priv(dev);
1921 int err;
1922
Jiri Pirko61dc3462011-11-16 11:09:08 +00001923 mutex_lock(&team->lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001924 err = team_port_add(team, port_dev);
Jiri Pirko61dc3462011-11-16 11:09:08 +00001925 mutex_unlock(&team->lock);
Xin Long16cf72b2017-04-06 13:41:28 +08001926
1927 if (!err)
1928 netdev_change_features(dev);
1929
Jiri Pirko3d249d42011-11-11 22:16:48 +00001930 return err;
1931}
1932
1933static int team_del_slave(struct net_device *dev, struct net_device *port_dev)
1934{
1935 struct team *team = netdev_priv(dev);
1936 int err;
1937
Jiri Pirko61dc3462011-11-16 11:09:08 +00001938 mutex_lock(&team->lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +00001939 err = team_port_del(team, port_dev);
Jiri Pirko61dc3462011-11-16 11:09:08 +00001940 mutex_unlock(&team->lock);
Xin Long16cf72b2017-04-06 13:41:28 +08001941
1942 if (!err)
1943 netdev_change_features(dev);
1944
Jiri Pirko3d249d42011-11-11 22:16:48 +00001945 return err;
1946}
1947
Jiri Pirko234a8fd2011-11-17 04:16:04 +00001948static netdev_features_t team_fix_features(struct net_device *dev,
1949 netdev_features_t features)
1950{
1951 struct team_port *port;
1952 struct team *team = netdev_priv(dev);
1953 netdev_features_t mask;
1954
Scott Feldman7889cbe2015-05-10 09:48:07 -07001955 mask = features;
Jiri Pirko234a8fd2011-11-17 04:16:04 +00001956 features &= ~NETIF_F_ONE_FOR_ALL;
1957 features |= NETIF_F_ALL_FOR_ALL;
1958
1959 rcu_read_lock();
1960 list_for_each_entry_rcu(port, &team->port_list, list) {
1961 features = netdev_increment_features(features,
1962 port->dev->features,
1963 mask);
1964 }
1965 rcu_read_unlock();
Jiri Pirko247f6d02015-02-25 19:52:11 +01001966
1967 features = netdev_add_tso_features(features, mask);
1968
Jiri Pirko234a8fd2011-11-17 04:16:04 +00001969 return features;
1970}
1971
Flavio Leitner4cafe372012-12-29 15:31:01 +00001972static int team_change_carrier(struct net_device *dev, bool new_carrier)
1973{
Flavio Leitnere1854832013-02-05 09:30:55 +00001974 struct team *team = netdev_priv(dev);
1975
1976 team->user_carrier_enabled = true;
1977
Flavio Leitner4cafe372012-12-29 15:31:01 +00001978 if (new_carrier)
1979 netif_carrier_on(dev);
1980 else
1981 netif_carrier_off(dev);
1982 return 0;
1983}
1984
Jiri Pirko3d249d42011-11-11 22:16:48 +00001985static const struct net_device_ops team_netdev_ops = {
1986 .ndo_init = team_init,
1987 .ndo_uninit = team_uninit,
1988 .ndo_open = team_open,
1989 .ndo_stop = team_close,
1990 .ndo_start_xmit = team_xmit,
Jiri Pirko6c85f2b2012-07-20 02:28:51 +00001991 .ndo_select_queue = team_select_queue,
Jiri Pirko3d249d42011-11-11 22:16:48 +00001992 .ndo_change_rx_flags = team_change_rx_flags,
1993 .ndo_set_rx_mode = team_set_rx_mode,
1994 .ndo_set_mac_address = team_set_mac_address,
1995 .ndo_change_mtu = team_change_mtu,
1996 .ndo_get_stats64 = team_get_stats64,
1997 .ndo_vlan_rx_add_vid = team_vlan_rx_add_vid,
1998 .ndo_vlan_rx_kill_vid = team_vlan_rx_kill_vid,
Jiri Pirkobd2d0832012-07-17 05:22:36 +00001999#ifdef CONFIG_NET_POLL_CONTROLLER
2000 .ndo_poll_controller = team_poll_controller,
2001 .ndo_netpoll_setup = team_netpoll_setup,
2002 .ndo_netpoll_cleanup = team_netpoll_cleanup,
2003#endif
Jiri Pirko3d249d42011-11-11 22:16:48 +00002004 .ndo_add_slave = team_add_slave,
2005 .ndo_del_slave = team_del_slave,
Jiri Pirko234a8fd2011-11-17 04:16:04 +00002006 .ndo_fix_features = team_fix_features,
Flavio Leitner4cafe372012-12-29 15:31:01 +00002007 .ndo_change_carrier = team_change_carrier,
Toshiaki Makitab9f4cf752015-03-27 14:31:15 +09002008 .ndo_features_check = passthru_features_check,
Jiri Pirko3d249d42011-11-11 22:16:48 +00002009};
2010
Flavio Leitner7f51c582012-12-29 16:37:33 +00002011/***********************
2012 * ethtool interface
2013 ***********************/
2014
2015static void team_ethtool_get_drvinfo(struct net_device *dev,
2016 struct ethtool_drvinfo *drvinfo)
2017{
Flavio Leitner3066af52013-01-05 02:53:10 +00002018 strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
2019 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
Flavio Leitner7f51c582012-12-29 16:37:33 +00002020}
2021
2022static const struct ethtool_ops team_ethtool_ops = {
2023 .get_drvinfo = team_ethtool_get_drvinfo,
2024 .get_link = ethtool_op_get_link,
2025};
Jiri Pirko3d249d42011-11-11 22:16:48 +00002026
2027/***********************
2028 * rt netlink interface
2029 ***********************/
2030
Jiri Pirko1d76efe2012-08-17 04:00:48 +00002031static void team_setup_by_port(struct net_device *dev,
2032 struct net_device *port_dev)
2033{
2034 dev->header_ops = port_dev->header_ops;
2035 dev->type = port_dev->type;
2036 dev->hard_header_len = port_dev->hard_header_len;
2037 dev->addr_len = port_dev->addr_len;
2038 dev->mtu = port_dev->mtu;
2039 memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);
Bjørn Mork93af7352013-08-30 18:08:48 +02002040 eth_hw_addr_inherit(dev, port_dev);
Jiri Pirko1d76efe2012-08-17 04:00:48 +00002041}
2042
2043static int team_dev_type_check_change(struct net_device *dev,
2044 struct net_device *port_dev)
2045{
2046 struct team *team = netdev_priv(dev);
2047 char *portname = port_dev->name;
2048 int err;
2049
2050 if (dev->type == port_dev->type)
2051 return 0;
2052 if (!list_empty(&team->port_list)) {
2053 netdev_err(dev, "Device %s is of different type\n", portname);
2054 return -EBUSY;
2055 }
2056 err = call_netdevice_notifiers(NETDEV_PRE_TYPE_CHANGE, dev);
2057 err = notifier_to_errno(err);
2058 if (err) {
2059 netdev_err(dev, "Refused to change device type\n");
2060 return err;
2061 }
2062 dev_uc_flush(dev);
2063 dev_mc_flush(dev);
2064 team_setup_by_port(dev, port_dev);
2065 call_netdevice_notifiers(NETDEV_POST_TYPE_CHANGE, dev);
2066 return 0;
2067}
2068
Jiri Pirko3d249d42011-11-11 22:16:48 +00002069static void team_setup(struct net_device *dev)
2070{
2071 ether_setup(dev);
Jarod Wilson3331aa32017-03-06 08:48:58 -05002072 dev->max_mtu = ETH_MAX_MTU;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002073
2074 dev->netdev_ops = &team_netdev_ops;
Flavio Leitner7f51c582012-12-29 16:37:33 +00002075 dev->ethtool_ops = &team_ethtool_ops;
David S. Millercf124db2017-05-08 12:52:56 -04002076 dev->needs_free_netdev = true;
2077 dev->priv_destructor = team_destructor;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002078 dev->priv_flags &= ~(IFF_XMIT_DST_RELEASE | IFF_TX_SKB_SHARING);
Phil Sutter22e380a2015-08-18 10:30:34 +02002079 dev->priv_flags |= IFF_NO_QUEUE;
Jiri Pirkoc981e422015-12-03 12:12:06 +01002080 dev->priv_flags |= IFF_TEAM;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002081
2082 /*
2083 * Indicate we support unicast address filtering. That way core won't
2084 * bring us to promisc mode in case a unicast addr is added.
2085 * Let this up to underlay drivers.
2086 */
Jiri Pirko5a1d1c82012-06-29 05:10:07 +00002087 dev->priv_flags |= IFF_UNICAST_FLT | IFF_LIVE_ADDR_CHANGE;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002088
2089 dev->features |= NETIF_F_LLTX;
2090 dev->features |= NETIF_F_GRO;
Weilong Chen99301ba2014-01-23 11:07:22 +08002091
2092 /* Don't allow team devices to change network namespaces. */
2093 dev->features |= NETIF_F_NETNS_LOCAL;
2094
Jiri Pirko3ed71472012-11-28 06:13:10 +00002095 dev->hw_features = TEAM_VLAN_FEATURES |
Patrick McHardyf6469682013-04-19 02:04:27 +00002096 NETIF_F_HW_VLAN_CTAG_TX |
2097 NETIF_F_HW_VLAN_CTAG_RX |
2098 NETIF_F_HW_VLAN_CTAG_FILTER;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002099
Eran Ben Elisha3268e5c2015-12-17 16:11:55 +02002100 dev->hw_features |= NETIF_F_GSO_ENCAP_ALL;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002101 dev->features |= dev->hw_features;
2102}
2103
2104static int team_newlink(struct net *src_net, struct net_device *dev,
Matthias Schiffer7a3f4a12017-06-25 23:55:59 +02002105 struct nlattr *tb[], struct nlattr *data[],
2106 struct netlink_ext_ack *extack)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002107{
Jiri Pirko3d249d42011-11-11 22:16:48 +00002108 if (tb[IFLA_ADDRESS] == NULL)
Danny Kukawka7ce5d222012-02-15 06:45:40 +00002109 eth_hw_addr_random(dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002110
Toshiaki Makitaff204cc2014-08-05 15:58:50 +09002111 return register_netdevice(dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002112}
2113
Matthias Schiffera8b8a8892017-06-25 23:56:01 +02002114static int team_validate(struct nlattr *tb[], struct nlattr *data[],
2115 struct netlink_ext_ack *extack)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002116{
2117 if (tb[IFLA_ADDRESS]) {
2118 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
2119 return -EINVAL;
2120 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
2121 return -EADDRNOTAVAIL;
2122 }
2123 return 0;
2124}
2125
Jiri Pirko6c85f2b2012-07-20 02:28:51 +00002126static unsigned int team_get_num_tx_queues(void)
2127{
2128 return TEAM_DEFAULT_NUM_TX_QUEUES;
2129}
2130
2131static unsigned int team_get_num_rx_queues(void)
2132{
2133 return TEAM_DEFAULT_NUM_RX_QUEUES;
2134}
2135
Jiri Pirko3d249d42011-11-11 22:16:48 +00002136static struct rtnl_link_ops team_link_ops __read_mostly = {
Jiri Pirko6c85f2b2012-07-20 02:28:51 +00002137 .kind = DRV_NAME,
2138 .priv_size = sizeof(struct team),
2139 .setup = team_setup,
2140 .newlink = team_newlink,
2141 .validate = team_validate,
2142 .get_num_tx_queues = team_get_num_tx_queues,
2143 .get_num_rx_queues = team_get_num_rx_queues,
Jiri Pirko3d249d42011-11-11 22:16:48 +00002144};
2145
2146
2147/***********************************
2148 * Generic netlink custom interface
2149 ***********************************/
2150
Johannes Berg489111e2016-10-24 14:40:03 +02002151static struct genl_family team_nl_family;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002152
2153static const struct nla_policy team_nl_policy[TEAM_ATTR_MAX + 1] = {
2154 [TEAM_ATTR_UNSPEC] = { .type = NLA_UNSPEC, },
2155 [TEAM_ATTR_TEAM_IFINDEX] = { .type = NLA_U32 },
2156 [TEAM_ATTR_LIST_OPTION] = { .type = NLA_NESTED },
2157 [TEAM_ATTR_LIST_PORT] = { .type = NLA_NESTED },
2158};
2159
2160static const struct nla_policy
2161team_nl_option_policy[TEAM_ATTR_OPTION_MAX + 1] = {
2162 [TEAM_ATTR_OPTION_UNSPEC] = { .type = NLA_UNSPEC, },
2163 [TEAM_ATTR_OPTION_NAME] = {
2164 .type = NLA_STRING,
2165 .len = TEAM_STRING_MAX_LEN,
2166 },
2167 [TEAM_ATTR_OPTION_CHANGED] = { .type = NLA_FLAG },
2168 [TEAM_ATTR_OPTION_TYPE] = { .type = NLA_U8 },
Jiri Pirko26155982012-04-04 12:16:26 +00002169 [TEAM_ATTR_OPTION_DATA] = { .type = NLA_BINARY },
Jiri Pirko3d249d42011-11-11 22:16:48 +00002170};
2171
2172static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
2173{
2174 struct sk_buff *msg;
2175 void *hdr;
2176 int err;
2177
Thomas Graf58050fc2012-06-28 03:57:45 +00002178 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002179 if (!msg)
2180 return -ENOMEM;
2181
Eric W. Biederman15e47302012-09-07 20:12:54 +00002182 hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq,
Jiri Pirko3d249d42011-11-11 22:16:48 +00002183 &team_nl_family, 0, TEAM_CMD_NOOP);
Wei Yongjuna326e6d2012-09-24 18:29:35 +00002184 if (!hdr) {
2185 err = -EMSGSIZE;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002186 goto err_msg_put;
2187 }
2188
2189 genlmsg_end(msg, hdr);
2190
Eric W. Biederman15e47302012-09-07 20:12:54 +00002191 return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002192
2193err_msg_put:
2194 nlmsg_free(msg);
2195
2196 return err;
2197}
2198
2199/*
2200 * Netlink cmd functions should be locked by following two functions.
Jiri Pirko8c0713a2011-11-16 11:55:54 +00002201 * Since dev gets held here, that ensures dev won't disappear in between.
Jiri Pirko3d249d42011-11-11 22:16:48 +00002202 */
2203static struct team *team_nl_team_get(struct genl_info *info)
2204{
2205 struct net *net = genl_info_net(info);
2206 int ifindex;
2207 struct net_device *dev;
2208 struct team *team;
2209
2210 if (!info->attrs[TEAM_ATTR_TEAM_IFINDEX])
2211 return NULL;
2212
2213 ifindex = nla_get_u32(info->attrs[TEAM_ATTR_TEAM_IFINDEX]);
Jiri Pirko8c0713a2011-11-16 11:55:54 +00002214 dev = dev_get_by_index(net, ifindex);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002215 if (!dev || dev->netdev_ops != &team_netdev_ops) {
Jiri Pirko8c0713a2011-11-16 11:55:54 +00002216 if (dev)
2217 dev_put(dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002218 return NULL;
2219 }
2220
2221 team = netdev_priv(dev);
Jiri Pirko61dc3462011-11-16 11:09:08 +00002222 mutex_lock(&team->lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002223 return team;
2224}
2225
2226static void team_nl_team_put(struct team *team)
2227{
Jiri Pirko61dc3462011-11-16 11:09:08 +00002228 mutex_unlock(&team->lock);
Jiri Pirko8c0713a2011-11-16 11:55:54 +00002229 dev_put(team->dev);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002230}
2231
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002232typedef int team_nl_send_func_t(struct sk_buff *skb,
Eric W. Biederman15e47302012-09-07 20:12:54 +00002233 struct team *team, u32 portid);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002234
Eric W. Biederman15e47302012-09-07 20:12:54 +00002235static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid)
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002236{
Eric W. Biederman15e47302012-09-07 20:12:54 +00002237 return genlmsg_unicast(dev_net(team->dev), skb, portid);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002238}
2239
Jiri Pirko01048d92012-06-19 05:54:14 +00002240static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team,
2241 struct team_option_inst *opt_inst)
2242{
2243 struct nlattr *option_item;
2244 struct team_option *option = opt_inst->option;
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002245 struct team_option_inst_info *opt_inst_info = &opt_inst->info;
Jiri Pirko01048d92012-06-19 05:54:14 +00002246 struct team_gsetter_ctx ctx;
2247 int err;
2248
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002249 ctx.info = opt_inst_info;
2250 err = team_option_get(team, opt_inst, &ctx);
2251 if (err)
2252 return err;
2253
Jiri Pirko01048d92012-06-19 05:54:14 +00002254 option_item = nla_nest_start(skb, TEAM_ATTR_ITEM_OPTION);
2255 if (!option_item)
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002256 return -EMSGSIZE;
Jiri Pirko01048d92012-06-19 05:54:14 +00002257
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002258 if (nla_put_string(skb, TEAM_ATTR_OPTION_NAME, option->name))
2259 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002260 if (opt_inst_info->port &&
2261 nla_put_u32(skb, TEAM_ATTR_OPTION_PORT_IFINDEX,
2262 opt_inst_info->port->dev->ifindex))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002263 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002264 if (opt_inst->option->array_size &&
2265 nla_put_u32(skb, TEAM_ATTR_OPTION_ARRAY_INDEX,
2266 opt_inst_info->array_index))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002267 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002268
2269 switch (option->type) {
2270 case TEAM_OPTION_TYPE_U32:
2271 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_U32))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002272 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002273 if (nla_put_u32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.u32_val))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002274 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002275 break;
2276 case TEAM_OPTION_TYPE_STRING:
2277 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_STRING))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002278 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002279 if (nla_put_string(skb, TEAM_ATTR_OPTION_DATA,
2280 ctx.data.str_val))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002281 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002282 break;
2283 case TEAM_OPTION_TYPE_BINARY:
2284 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_BINARY))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002285 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002286 if (nla_put(skb, TEAM_ATTR_OPTION_DATA, ctx.data.bin_val.len,
2287 ctx.data.bin_val.ptr))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002288 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002289 break;
2290 case TEAM_OPTION_TYPE_BOOL:
2291 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_FLAG))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002292 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002293 if (ctx.data.bool_val &&
2294 nla_put_flag(skb, TEAM_ATTR_OPTION_DATA))
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002295 goto nest_cancel;
Jiri Pirko01048d92012-06-19 05:54:14 +00002296 break;
Jiri Pirko69821632012-07-27 06:28:53 +00002297 case TEAM_OPTION_TYPE_S32:
2298 if (nla_put_u8(skb, TEAM_ATTR_OPTION_TYPE, NLA_S32))
2299 goto nest_cancel;
2300 if (nla_put_s32(skb, TEAM_ATTR_OPTION_DATA, ctx.data.s32_val))
2301 goto nest_cancel;
2302 break;
Jiri Pirko01048d92012-06-19 05:54:14 +00002303 default:
2304 BUG();
2305 }
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002306 if (opt_inst->removed && nla_put_flag(skb, TEAM_ATTR_OPTION_REMOVED))
2307 goto nest_cancel;
2308 if (opt_inst->changed) {
2309 if (nla_put_flag(skb, TEAM_ATTR_OPTION_CHANGED))
2310 goto nest_cancel;
2311 opt_inst->changed = false;
2312 }
Jiri Pirko01048d92012-06-19 05:54:14 +00002313 nla_nest_end(skb, option_item);
2314 return 0;
2315
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002316nest_cancel:
2317 nla_nest_cancel(skb, option_item);
2318 return -EMSGSIZE;
Jiri Pirko01048d92012-06-19 05:54:14 +00002319}
2320
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002321static int __send_and_alloc_skb(struct sk_buff **pskb,
Eric W. Biederman15e47302012-09-07 20:12:54 +00002322 struct team *team, u32 portid,
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002323 team_nl_send_func_t *send_func)
2324{
2325 int err;
2326
2327 if (*pskb) {
Eric W. Biederman15e47302012-09-07 20:12:54 +00002328 err = send_func(*pskb, team, portid);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002329 if (err)
2330 return err;
2331 }
Thomas Graf58050fc2012-06-28 03:57:45 +00002332 *pskb = genlmsg_new(GENLMSG_DEFAULT_SIZE, GFP_KERNEL);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002333 if (!*pskb)
2334 return -ENOMEM;
2335 return 0;
2336}
2337
Eric W. Biederman15e47302012-09-07 20:12:54 +00002338static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq,
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002339 int flags, team_nl_send_func_t *send_func,
Jiri Pirko01048d92012-06-19 05:54:14 +00002340 struct list_head *sel_opt_inst_list)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002341{
2342 struct nlattr *option_list;
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002343 struct nlmsghdr *nlh;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002344 void *hdr;
Jiri Pirko80f7c662012-04-10 05:15:42 +00002345 struct team_option_inst *opt_inst;
2346 int err;
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002347 struct sk_buff *skb = NULL;
2348 bool incomplete;
2349 int i;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002350
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002351 opt_inst = list_first_entry(sel_opt_inst_list,
2352 struct team_option_inst, tmp_list);
2353
2354start_again:
Eric W. Biederman15e47302012-09-07 20:12:54 +00002355 err = __send_and_alloc_skb(&skb, team, portid, send_func);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002356 if (err)
2357 return err;
2358
Eric W. Biederman15e47302012-09-07 20:12:54 +00002359 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
Jiri Pirko3d249d42011-11-11 22:16:48 +00002360 TEAM_CMD_OPTIONS_GET);
Pan Bian72ec0bc2017-04-24 18:29:16 +08002361 if (!hdr) {
2362 nlmsg_free(skb);
Wei Yongjuna326e6d2012-09-24 18:29:35 +00002363 return -EMSGSIZE;
Pan Bian72ec0bc2017-04-24 18:29:16 +08002364 }
Jiri Pirko3d249d42011-11-11 22:16:48 +00002365
David S. Miller86ebb022012-04-01 20:25:18 -04002366 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2367 goto nla_put_failure;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002368 option_list = nla_nest_start(skb, TEAM_ATTR_LIST_OPTION);
2369 if (!option_list)
Jiri Pirko75db9862012-06-19 05:54:12 +00002370 goto nla_put_failure;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002371
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002372 i = 0;
2373 incomplete = false;
2374 list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) {
Jiri Pirko01048d92012-06-19 05:54:14 +00002375 err = team_nl_fill_one_option_get(skb, team, opt_inst);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002376 if (err) {
2377 if (err == -EMSGSIZE) {
2378 if (!i)
2379 goto errout;
2380 incomplete = true;
2381 break;
2382 }
Jiri Pirko01048d92012-06-19 05:54:14 +00002383 goto errout;
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002384 }
2385 i++;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002386 }
2387
2388 nla_nest_end(skb, option_list);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002389 genlmsg_end(skb, hdr);
2390 if (incomplete)
2391 goto start_again;
2392
2393send_done:
Eric W. Biederman15e47302012-09-07 20:12:54 +00002394 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002395 if (!nlh) {
Eric W. Biederman15e47302012-09-07 20:12:54 +00002396 err = __send_and_alloc_skb(&skb, team, portid, send_func);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002397 if (err)
2398 goto errout;
2399 goto send_done;
2400 }
2401
Eric W. Biederman15e47302012-09-07 20:12:54 +00002402 return send_func(skb, team, portid);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002403
2404nla_put_failure:
Jiri Pirko80f7c662012-04-10 05:15:42 +00002405 err = -EMSGSIZE;
2406errout:
Jiri Pirko3d249d42011-11-11 22:16:48 +00002407 genlmsg_cancel(skb, hdr);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002408 nlmsg_free(skb);
Jiri Pirko80f7c662012-04-10 05:15:42 +00002409 return err;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002410}
2411
Jiri Pirko3d249d42011-11-11 22:16:48 +00002412static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info)
2413{
2414 struct team *team;
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002415 struct team_option_inst *opt_inst;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002416 int err;
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002417 LIST_HEAD(sel_opt_inst_list);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002418
2419 team = team_nl_team_get(info);
2420 if (!team)
2421 return -EINVAL;
2422
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002423 list_for_each_entry(opt_inst, &team->option_inst_list, list)
2424 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
Eric W. Biederman15e47302012-09-07 20:12:54 +00002425 err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq,
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002426 NLM_F_ACK, team_nl_send_unicast,
2427 &sel_opt_inst_list);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002428
2429 team_nl_team_put(team);
2430
2431 return err;
2432}
2433
Jiri Pirko2fcdb2c2012-06-19 05:54:20 +00002434static int team_nl_send_event_options_get(struct team *team,
2435 struct list_head *sel_opt_inst_list);
2436
Jiri Pirko3d249d42011-11-11 22:16:48 +00002437static int team_nl_cmd_options_set(struct sk_buff *skb, struct genl_info *info)
2438{
2439 struct team *team;
2440 int err = 0;
2441 int i;
2442 struct nlattr *nl_option;
Jiri Pirko2fcdb2c2012-06-19 05:54:20 +00002443 LIST_HEAD(opt_inst_list);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002444
Jiri Pirko7d259502015-12-03 12:12:17 +01002445 rtnl_lock();
2446
Jiri Pirko3d249d42011-11-11 22:16:48 +00002447 team = team_nl_team_get(info);
Jiri Pirko7d259502015-12-03 12:12:17 +01002448 if (!team) {
2449 err = -EINVAL;
2450 goto rtnl_unlock;
2451 }
Jiri Pirko3d249d42011-11-11 22:16:48 +00002452
2453 err = -EINVAL;
2454 if (!info->attrs[TEAM_ATTR_LIST_OPTION]) {
2455 err = -EINVAL;
2456 goto team_put;
2457 }
2458
2459 nla_for_each_nested(nl_option, info->attrs[TEAM_ATTR_LIST_OPTION], i) {
Jiri Pirko80f7c662012-04-10 05:15:42 +00002460 struct nlattr *opt_attrs[TEAM_ATTR_OPTION_MAX + 1];
Jiri Pirkob1303322012-06-19 05:54:08 +00002461 struct nlattr *attr;
Jiri Pirko14f066b2012-04-10 05:15:43 +00002462 struct nlattr *attr_data;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002463 enum team_option_type opt_type;
Jiri Pirko80f7c662012-04-10 05:15:42 +00002464 int opt_port_ifindex = 0; /* != 0 for per-port options */
Jiri Pirkob1303322012-06-19 05:54:08 +00002465 u32 opt_array_index = 0;
2466 bool opt_is_array = false;
Jiri Pirko80f7c662012-04-10 05:15:42 +00002467 struct team_option_inst *opt_inst;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002468 char *opt_name;
2469 bool opt_found = false;
2470
2471 if (nla_type(nl_option) != TEAM_ATTR_ITEM_OPTION) {
2472 err = -EINVAL;
2473 goto team_put;
2474 }
Jiri Pirko80f7c662012-04-10 05:15:42 +00002475 err = nla_parse_nested(opt_attrs, TEAM_ATTR_OPTION_MAX,
Johannes Bergfe521452017-04-12 14:34:08 +02002476 nl_option, team_nl_option_policy,
2477 info->extack);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002478 if (err)
2479 goto team_put;
Jiri Pirko80f7c662012-04-10 05:15:42 +00002480 if (!opt_attrs[TEAM_ATTR_OPTION_NAME] ||
Jiri Pirko14f066b2012-04-10 05:15:43 +00002481 !opt_attrs[TEAM_ATTR_OPTION_TYPE]) {
Jiri Pirko3d249d42011-11-11 22:16:48 +00002482 err = -EINVAL;
2483 goto team_put;
2484 }
Jiri Pirko80f7c662012-04-10 05:15:42 +00002485 switch (nla_get_u8(opt_attrs[TEAM_ATTR_OPTION_TYPE])) {
Jiri Pirko3d249d42011-11-11 22:16:48 +00002486 case NLA_U32:
2487 opt_type = TEAM_OPTION_TYPE_U32;
2488 break;
2489 case NLA_STRING:
2490 opt_type = TEAM_OPTION_TYPE_STRING;
2491 break;
Jiri Pirko26155982012-04-04 12:16:26 +00002492 case NLA_BINARY:
2493 opt_type = TEAM_OPTION_TYPE_BINARY;
2494 break;
Jiri Pirko14f066b2012-04-10 05:15:43 +00002495 case NLA_FLAG:
2496 opt_type = TEAM_OPTION_TYPE_BOOL;
2497 break;
Jiri Pirko69821632012-07-27 06:28:53 +00002498 case NLA_S32:
2499 opt_type = TEAM_OPTION_TYPE_S32;
2500 break;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002501 default:
2502 goto team_put;
2503 }
2504
Jiri Pirko14f066b2012-04-10 05:15:43 +00002505 attr_data = opt_attrs[TEAM_ATTR_OPTION_DATA];
2506 if (opt_type != TEAM_OPTION_TYPE_BOOL && !attr_data) {
2507 err = -EINVAL;
2508 goto team_put;
2509 }
2510
Jiri Pirko80f7c662012-04-10 05:15:42 +00002511 opt_name = nla_data(opt_attrs[TEAM_ATTR_OPTION_NAME]);
Jiri Pirkob1303322012-06-19 05:54:08 +00002512 attr = opt_attrs[TEAM_ATTR_OPTION_PORT_IFINDEX];
2513 if (attr)
2514 opt_port_ifindex = nla_get_u32(attr);
2515
2516 attr = opt_attrs[TEAM_ATTR_OPTION_ARRAY_INDEX];
2517 if (attr) {
2518 opt_is_array = true;
2519 opt_array_index = nla_get_u32(attr);
2520 }
Jiri Pirko3d249d42011-11-11 22:16:48 +00002521
Jiri Pirko80f7c662012-04-10 05:15:42 +00002522 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2523 struct team_option *option = opt_inst->option;
Jiri Pirko80f7c662012-04-10 05:15:42 +00002524 struct team_gsetter_ctx ctx;
Jiri Pirko85d59a82012-06-19 05:54:10 +00002525 struct team_option_inst_info *opt_inst_info;
Jiri Pirko80f7c662012-04-10 05:15:42 +00002526 int tmp_ifindex;
2527
Jiri Pirko85d59a82012-06-19 05:54:10 +00002528 opt_inst_info = &opt_inst->info;
2529 tmp_ifindex = opt_inst_info->port ?
2530 opt_inst_info->port->dev->ifindex : 0;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002531 if (option->type != opt_type ||
Jiri Pirko80f7c662012-04-10 05:15:42 +00002532 strcmp(option->name, opt_name) ||
Jiri Pirkob1303322012-06-19 05:54:08 +00002533 tmp_ifindex != opt_port_ifindex ||
2534 (option->array_size && !opt_is_array) ||
Jiri Pirko85d59a82012-06-19 05:54:10 +00002535 opt_inst_info->array_index != opt_array_index)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002536 continue;
2537 opt_found = true;
Jiri Pirko85d59a82012-06-19 05:54:10 +00002538 ctx.info = opt_inst_info;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002539 switch (opt_type) {
2540 case TEAM_OPTION_TYPE_U32:
Jiri Pirko14f066b2012-04-10 05:15:43 +00002541 ctx.data.u32_val = nla_get_u32(attr_data);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002542 break;
2543 case TEAM_OPTION_TYPE_STRING:
Jiri Pirko14f066b2012-04-10 05:15:43 +00002544 if (nla_len(attr_data) > TEAM_STRING_MAX_LEN) {
Jiri Pirko26155982012-04-04 12:16:26 +00002545 err = -EINVAL;
2546 goto team_put;
2547 }
Jiri Pirko14f066b2012-04-10 05:15:43 +00002548 ctx.data.str_val = nla_data(attr_data);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002549 break;
Jiri Pirko26155982012-04-04 12:16:26 +00002550 case TEAM_OPTION_TYPE_BINARY:
Jiri Pirko14f066b2012-04-10 05:15:43 +00002551 ctx.data.bin_val.len = nla_len(attr_data);
2552 ctx.data.bin_val.ptr = nla_data(attr_data);
2553 break;
2554 case TEAM_OPTION_TYPE_BOOL:
2555 ctx.data.bool_val = attr_data ? true : false;
Jiri Pirko26155982012-04-04 12:16:26 +00002556 break;
Jiri Pirko69821632012-07-27 06:28:53 +00002557 case TEAM_OPTION_TYPE_S32:
2558 ctx.data.s32_val = nla_get_s32(attr_data);
2559 break;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002560 default:
2561 BUG();
2562 }
Jiri Pirko80f7c662012-04-10 05:15:42 +00002563 err = team_option_set(team, opt_inst, &ctx);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002564 if (err)
2565 goto team_put;
Jiri Pirko2fcdb2c2012-06-19 05:54:20 +00002566 opt_inst->changed = true;
2567 list_add(&opt_inst->tmp_list, &opt_inst_list);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002568 }
2569 if (!opt_found) {
2570 err = -ENOENT;
2571 goto team_put;
2572 }
2573 }
2574
Jiri Pirko2fcdb2c2012-06-19 05:54:20 +00002575 err = team_nl_send_event_options_get(team, &opt_inst_list);
2576
Jiri Pirko3d249d42011-11-11 22:16:48 +00002577team_put:
2578 team_nl_team_put(team);
Jiri Pirko7d259502015-12-03 12:12:17 +01002579rtnl_unlock:
2580 rtnl_unlock();
Jiri Pirko3d249d42011-11-11 22:16:48 +00002581 return err;
2582}
2583
Jiri Pirkod90f8892013-02-01 08:17:24 +00002584static int team_nl_fill_one_port_get(struct sk_buff *skb,
2585 struct team_port *port)
2586{
2587 struct nlattr *port_item;
2588
2589 port_item = nla_nest_start(skb, TEAM_ATTR_ITEM_PORT);
2590 if (!port_item)
2591 goto nest_cancel;
2592 if (nla_put_u32(skb, TEAM_ATTR_PORT_IFINDEX, port->dev->ifindex))
2593 goto nest_cancel;
2594 if (port->changed) {
2595 if (nla_put_flag(skb, TEAM_ATTR_PORT_CHANGED))
2596 goto nest_cancel;
2597 port->changed = false;
2598 }
2599 if ((port->removed &&
2600 nla_put_flag(skb, TEAM_ATTR_PORT_REMOVED)) ||
2601 (port->state.linkup &&
2602 nla_put_flag(skb, TEAM_ATTR_PORT_LINKUP)) ||
2603 nla_put_u32(skb, TEAM_ATTR_PORT_SPEED, port->state.speed) ||
2604 nla_put_u8(skb, TEAM_ATTR_PORT_DUPLEX, port->state.duplex))
2605 goto nest_cancel;
2606 nla_nest_end(skb, port_item);
2607 return 0;
2608
2609nest_cancel:
2610 nla_nest_cancel(skb, port_item);
2611 return -EMSGSIZE;
2612}
2613
2614static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq,
2615 int flags, team_nl_send_func_t *send_func,
2616 struct team_port *one_port)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002617{
2618 struct nlattr *port_list;
Jiri Pirkod90f8892013-02-01 08:17:24 +00002619 struct nlmsghdr *nlh;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002620 void *hdr;
2621 struct team_port *port;
Jiri Pirkod90f8892013-02-01 08:17:24 +00002622 int err;
2623 struct sk_buff *skb = NULL;
2624 bool incomplete;
2625 int i;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002626
Jiri Pirko3f3e7ce2013-05-29 05:02:57 +00002627 port = list_first_entry_or_null(&team->port_list,
2628 struct team_port, list);
Jiri Pirkod90f8892013-02-01 08:17:24 +00002629
2630start_again:
2631 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2632 if (err)
2633 return err;
2634
2635 hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI,
Jiri Pirko3d249d42011-11-11 22:16:48 +00002636 TEAM_CMD_PORT_LIST_GET);
Pan Bian72ec0bc2017-04-24 18:29:16 +08002637 if (!hdr) {
2638 nlmsg_free(skb);
Wei Yongjuna326e6d2012-09-24 18:29:35 +00002639 return -EMSGSIZE;
Pan Bian72ec0bc2017-04-24 18:29:16 +08002640 }
Jiri Pirko3d249d42011-11-11 22:16:48 +00002641
David S. Miller86ebb022012-04-01 20:25:18 -04002642 if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
2643 goto nla_put_failure;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002644 port_list = nla_nest_start(skb, TEAM_ATTR_LIST_PORT);
2645 if (!port_list)
Jiri Pirko3221c642012-06-19 05:54:13 +00002646 goto nla_put_failure;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002647
Jiri Pirkod90f8892013-02-01 08:17:24 +00002648 i = 0;
2649 incomplete = false;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002650
Jiri Pirkod90f8892013-02-01 08:17:24 +00002651 /* If one port is selected, called wants to send port list containing
2652 * only this port. Otherwise go through all listed ports and send all
2653 */
2654 if (one_port) {
2655 err = team_nl_fill_one_port_get(skb, one_port);
2656 if (err)
2657 goto errout;
Jiri Pirko3f3e7ce2013-05-29 05:02:57 +00002658 } else if (port) {
2659 list_for_each_entry_from(port, &team->port_list, list) {
Jiri Pirkod90f8892013-02-01 08:17:24 +00002660 err = team_nl_fill_one_port_get(skb, port);
2661 if (err) {
2662 if (err == -EMSGSIZE) {
2663 if (!i)
2664 goto errout;
2665 incomplete = true;
2666 break;
2667 }
2668 goto errout;
2669 }
2670 i++;
Jiri Pirkob82b9182012-01-24 05:16:00 +00002671 }
Jiri Pirko3d249d42011-11-11 22:16:48 +00002672 }
2673
2674 nla_nest_end(skb, port_list);
Jiri Pirkod90f8892013-02-01 08:17:24 +00002675 genlmsg_end(skb, hdr);
2676 if (incomplete)
2677 goto start_again;
2678
2679send_done:
2680 nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI);
2681 if (!nlh) {
2682 err = __send_and_alloc_skb(&skb, team, portid, send_func);
2683 if (err)
2684 goto errout;
2685 goto send_done;
2686 }
2687
2688 return send_func(skb, team, portid);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002689
2690nla_put_failure:
Jiri Pirkod90f8892013-02-01 08:17:24 +00002691 err = -EMSGSIZE;
2692errout:
Jiri Pirko3d249d42011-11-11 22:16:48 +00002693 genlmsg_cancel(skb, hdr);
Jiri Pirkod90f8892013-02-01 08:17:24 +00002694 nlmsg_free(skb);
2695 return err;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002696}
2697
2698static int team_nl_cmd_port_list_get(struct sk_buff *skb,
2699 struct genl_info *info)
2700{
2701 struct team *team;
2702 int err;
2703
2704 team = team_nl_team_get(info);
2705 if (!team)
2706 return -EINVAL;
2707
Jiri Pirkod90f8892013-02-01 08:17:24 +00002708 err = team_nl_send_port_list_get(team, info->snd_portid, info->snd_seq,
2709 NLM_F_ACK, team_nl_send_unicast, NULL);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002710
2711 team_nl_team_put(team);
2712
2713 return err;
2714}
2715
Johannes Berg4534de82013-11-14 17:14:46 +01002716static const struct genl_ops team_nl_ops[] = {
Jiri Pirko3d249d42011-11-11 22:16:48 +00002717 {
2718 .cmd = TEAM_CMD_NOOP,
2719 .doit = team_nl_cmd_noop,
2720 .policy = team_nl_policy,
2721 },
2722 {
2723 .cmd = TEAM_CMD_OPTIONS_SET,
2724 .doit = team_nl_cmd_options_set,
2725 .policy = team_nl_policy,
2726 .flags = GENL_ADMIN_PERM,
2727 },
2728 {
2729 .cmd = TEAM_CMD_OPTIONS_GET,
2730 .doit = team_nl_cmd_options_get,
2731 .policy = team_nl_policy,
2732 .flags = GENL_ADMIN_PERM,
2733 },
2734 {
2735 .cmd = TEAM_CMD_PORT_LIST_GET,
2736 .doit = team_nl_cmd_port_list_get,
2737 .policy = team_nl_policy,
2738 .flags = GENL_ADMIN_PERM,
2739 },
2740};
2741
Johannes Berg2a94fe42013-11-19 15:19:39 +01002742static const struct genl_multicast_group team_nl_mcgrps[] = {
2743 { .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, },
Jiri Pirko3d249d42011-11-11 22:16:48 +00002744};
2745
Johannes Berg56989f62016-10-24 14:40:05 +02002746static struct genl_family team_nl_family __ro_after_init = {
Johannes Berg489111e2016-10-24 14:40:03 +02002747 .name = TEAM_GENL_NAME,
2748 .version = TEAM_GENL_VERSION,
2749 .maxattr = TEAM_ATTR_MAX,
2750 .netnsok = true,
2751 .module = THIS_MODULE,
2752 .ops = team_nl_ops,
2753 .n_ops = ARRAY_SIZE(team_nl_ops),
2754 .mcgrps = team_nl_mcgrps,
2755 .n_mcgrps = ARRAY_SIZE(team_nl_mcgrps),
2756};
2757
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002758static int team_nl_send_multicast(struct sk_buff *skb,
Eric W. Biederman15e47302012-09-07 20:12:54 +00002759 struct team *team, u32 portid)
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002760{
Johannes Berg68eb5502013-11-19 15:19:38 +01002761 return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev),
Johannes Berg2a94fe42013-11-19 15:19:39 +01002762 skb, 0, 0, GFP_KERNEL);
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002763}
2764
Jiri Pirko01048d92012-06-19 05:54:14 +00002765static int team_nl_send_event_options_get(struct team *team,
2766 struct list_head *sel_opt_inst_list)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002767{
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002768 return team_nl_send_options_get(team, 0, 0, 0, team_nl_send_multicast,
2769 sel_opt_inst_list);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002770}
2771
Jiri Pirkod90f8892013-02-01 08:17:24 +00002772static int team_nl_send_event_port_get(struct team *team,
2773 struct team_port *port)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002774{
Jiri Pirkod90f8892013-02-01 08:17:24 +00002775 return team_nl_send_port_list_get(team, 0, 0, 0, team_nl_send_multicast,
2776 port);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002777}
2778
Johannes Berg56989f62016-10-24 14:40:05 +02002779static int __init team_nl_init(void)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002780{
Johannes Berg489111e2016-10-24 14:40:03 +02002781 return genl_register_family(&team_nl_family);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002782}
2783
2784static void team_nl_fini(void)
2785{
2786 genl_unregister_family(&team_nl_family);
2787}
2788
2789
2790/******************
2791 * Change checkers
2792 ******************/
2793
Jiri Pirkob82b9182012-01-24 05:16:00 +00002794static void __team_options_change_check(struct team *team)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002795{
2796 int err;
Jiri Pirko01048d92012-06-19 05:54:14 +00002797 struct team_option_inst *opt_inst;
2798 LIST_HEAD(sel_opt_inst_list);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002799
Jiri Pirko01048d92012-06-19 05:54:14 +00002800 list_for_each_entry(opt_inst, &team->option_inst_list, list) {
2801 if (opt_inst->changed)
2802 list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list);
2803 }
2804 err = team_nl_send_event_options_get(team, &sel_opt_inst_list);
Jiri Pirko0c7517e2012-08-23 03:26:51 +00002805 if (err && err != -ESRCH)
Jiri Pirko9b00cf22012-06-19 05:54:18 +00002806 netdev_warn(team->dev, "Failed to send options change via netlink (err %d)\n",
2807 err);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002808}
2809
2810/* rtnl lock is held */
Jiri Pirko10f3f512012-09-21 01:51:59 +00002811
2812static void __team_port_change_send(struct team_port *port, bool linkup)
Jiri Pirko3d249d42011-11-11 22:16:48 +00002813{
2814 int err;
2815
Jiri Pirkob82b9182012-01-24 05:16:00 +00002816 port->changed = true;
Jiri Pirko71472ec2012-04-10 05:15:44 +00002817 port->state.linkup = linkup;
2818 team_refresh_port_linkup(port);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002819 if (linkup) {
David Decotigny0ab6b542016-02-24 10:58:05 -08002820 struct ethtool_link_ksettings ecmd;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002821
David Decotigny0ab6b542016-02-24 10:58:05 -08002822 err = __ethtool_get_link_ksettings(port->dev, &ecmd);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002823 if (!err) {
David Decotigny0ab6b542016-02-24 10:58:05 -08002824 port->state.speed = ecmd.base.speed;
2825 port->state.duplex = ecmd.base.duplex;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002826 goto send_event;
2827 }
2828 }
Jiri Pirko71472ec2012-04-10 05:15:44 +00002829 port->state.speed = 0;
2830 port->state.duplex = 0;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002831
2832send_event:
Jiri Pirkod90f8892013-02-01 08:17:24 +00002833 err = team_nl_send_event_port_get(port->team, port);
Jiri Pirko0c7517e2012-08-23 03:26:51 +00002834 if (err && err != -ESRCH)
2835 netdev_warn(port->team->dev, "Failed to send port change of device %s via netlink (err %d)\n",
2836 port->dev->name, err);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002837
2838}
2839
Flavio Leitner06a7fc42012-12-30 08:27:29 +00002840static void __team_carrier_check(struct team *team)
2841{
2842 struct team_port *port;
2843 bool team_linkup;
2844
Flavio Leitnere1854832013-02-05 09:30:55 +00002845 if (team->user_carrier_enabled)
2846 return;
2847
Flavio Leitner06a7fc42012-12-30 08:27:29 +00002848 team_linkup = false;
2849 list_for_each_entry(port, &team->port_list, list) {
2850 if (port->linkup) {
2851 team_linkup = true;
2852 break;
2853 }
2854 }
2855
2856 if (team_linkup)
2857 netif_carrier_on(team->dev);
2858 else
2859 netif_carrier_off(team->dev);
2860}
2861
Jiri Pirko10f3f512012-09-21 01:51:59 +00002862static void __team_port_change_check(struct team_port *port, bool linkup)
2863{
2864 if (port->state.linkup != linkup)
2865 __team_port_change_send(port, linkup);
Flavio Leitner06a7fc42012-12-30 08:27:29 +00002866 __team_carrier_check(port->team);
Jiri Pirko10f3f512012-09-21 01:51:59 +00002867}
2868
2869static void __team_port_change_port_added(struct team_port *port, bool linkup)
2870{
2871 __team_port_change_send(port, linkup);
Flavio Leitner06a7fc42012-12-30 08:27:29 +00002872 __team_carrier_check(port->team);
Jiri Pirko10f3f512012-09-21 01:51:59 +00002873}
2874
2875static void __team_port_change_port_removed(struct team_port *port)
2876{
2877 port->removed = true;
2878 __team_port_change_send(port, false);
Flavio Leitner06a7fc42012-12-30 08:27:29 +00002879 __team_carrier_check(port->team);
Jiri Pirko10f3f512012-09-21 01:51:59 +00002880}
2881
Jiri Pirko3d249d42011-11-11 22:16:48 +00002882static void team_port_change_check(struct team_port *port, bool linkup)
2883{
2884 struct team *team = port->team;
2885
Jiri Pirko61dc3462011-11-16 11:09:08 +00002886 mutex_lock(&team->lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002887 __team_port_change_check(port, linkup);
Jiri Pirko61dc3462011-11-16 11:09:08 +00002888 mutex_unlock(&team->lock);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002889}
2890
Jiri Pirko0f1aad22012-06-19 05:54:11 +00002891
Jiri Pirko3d249d42011-11-11 22:16:48 +00002892/************************************
2893 * Net device notifier event handler
2894 ************************************/
2895
2896static int team_device_event(struct notifier_block *unused,
2897 unsigned long event, void *ptr)
2898{
Jiri Pirko351638e2013-05-28 01:30:21 +00002899 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
Jiri Pirko3d249d42011-11-11 22:16:48 +00002900 struct team_port *port;
2901
2902 port = team_port_get_rtnl(dev);
2903 if (!port)
2904 return NOTIFY_DONE;
2905
2906 switch (event) {
2907 case NETDEV_UP:
2908 if (netif_carrier_ok(dev))
2909 team_port_change_check(port, true);
Jiri Pirkoed2da032014-04-23 14:17:55 +02002910 break;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002911 case NETDEV_DOWN:
2912 team_port_change_check(port, false);
Jiri Pirkoed2da032014-04-23 14:17:55 +02002913 break;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002914 case NETDEV_CHANGE:
2915 if (netif_running(port->dev))
2916 team_port_change_check(port,
2917 !!netif_carrier_ok(port->dev));
2918 break;
2919 case NETDEV_UNREGISTER:
2920 team_del_slave(port->team->dev, dev);
2921 break;
2922 case NETDEV_FEAT_CHANGE:
2923 team_compute_features(port->team);
2924 break;
Veaceslav Falicob01f2362014-01-16 00:02:19 +01002925 case NETDEV_PRECHANGEMTU:
Jiri Pirko3d249d42011-11-11 22:16:48 +00002926 /* Forbid to change mtu of underlaying device */
Jiri Pirko9d0d68f2014-05-29 20:46:17 +02002927 if (!port->team->port_mtu_change_allowed)
2928 return NOTIFY_BAD;
2929 break;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002930 case NETDEV_PRE_TYPE_CHANGE:
2931 /* Forbid to change type of underlaying device */
2932 return NOTIFY_BAD;
Jiri Pirko4aa5dee2013-07-20 12:13:53 +02002933 case NETDEV_RESEND_IGMP:
2934 /* Propagate to master device */
2935 call_netdevice_notifiers(event, port->team->dev);
2936 break;
Jiri Pirko3d249d42011-11-11 22:16:48 +00002937 }
2938 return NOTIFY_DONE;
2939}
2940
2941static struct notifier_block team_notifier_block __read_mostly = {
2942 .notifier_call = team_device_event,
2943};
2944
2945
2946/***********************
2947 * Module init and exit
2948 ***********************/
2949
2950static int __init team_module_init(void)
2951{
2952 int err;
2953
2954 register_netdevice_notifier(&team_notifier_block);
2955
2956 err = rtnl_link_register(&team_link_ops);
2957 if (err)
2958 goto err_rtnl_reg;
2959
2960 err = team_nl_init();
2961 if (err)
2962 goto err_nl_init;
2963
2964 return 0;
2965
2966err_nl_init:
2967 rtnl_link_unregister(&team_link_ops);
2968
2969err_rtnl_reg:
2970 unregister_netdevice_notifier(&team_notifier_block);
2971
2972 return err;
2973}
2974
2975static void __exit team_module_exit(void)
2976{
2977 team_nl_fini();
2978 rtnl_link_unregister(&team_link_ops);
2979 unregister_netdevice_notifier(&team_notifier_block);
2980}
2981
2982module_init(team_module_init);
2983module_exit(team_module_exit);
2984
2985MODULE_LICENSE("GPL v2");
2986MODULE_AUTHOR("Jiri Pirko <jpirko@redhat.com>");
2987MODULE_DESCRIPTION("Ethernet team device driver");
2988MODULE_ALIAS_RTNL_LINK(DRV_NAME);