Commit | Line | Data |
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b76cdba9 MW |
1 | /* |
2 | * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
11 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
adf8d3ff | 15 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
b76cdba9 MW |
16 | * |
17 | * The full GNU General Public License is included in this distribution in the | |
18 | * file called LICENSE. | |
19 | * | |
b76cdba9 | 20 | */ |
a4aee5c8 JP |
21 | |
22 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
23 | ||
b76cdba9 MW |
24 | #include <linux/kernel.h> |
25 | #include <linux/module.h> | |
b76cdba9 | 26 | #include <linux/device.h> |
d43c36dc | 27 | #include <linux/sched.h> |
b76cdba9 MW |
28 | #include <linux/fs.h> |
29 | #include <linux/types.h> | |
30 | #include <linux/string.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/inetdevice.h> | |
33 | #include <linux/in.h> | |
34 | #include <linux/sysfs.h> | |
b76cdba9 MW |
35 | #include <linux/ctype.h> |
36 | #include <linux/inet.h> | |
37 | #include <linux/rtnetlink.h> | |
5c5129b5 | 38 | #include <linux/etherdevice.h> |
881d966b | 39 | #include <net/net_namespace.h> |
ec87fd3b EB |
40 | #include <net/netns/generic.h> |
41 | #include <linux/nsproxy.h> | |
b76cdba9 | 42 | |
b76cdba9 | 43 | #include "bonding.h" |
5a03cdb7 | 44 | |
3d632c3f | 45 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 46 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 47 | |
b76cdba9 MW |
48 | /* |
49 | * "show" function for the bond_masters attribute. | |
50 | * The class parameter is ignored. | |
51 | */ | |
28812fe1 AK |
52 | static ssize_t bonding_show_bonds(struct class *cls, |
53 | struct class_attribute *attr, | |
54 | char *buf) | |
b76cdba9 | 55 | { |
4c22400a EB |
56 | struct bond_net *bn = |
57 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
58 | int res = 0; |
59 | struct bonding *bond; | |
60 | ||
7e083840 | 61 | rtnl_lock(); |
b76cdba9 | 62 | |
ec87fd3b | 63 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
64 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
65 | /* not enough space for another interface name */ | |
66 | if ((PAGE_SIZE - res) > 10) | |
67 | res = PAGE_SIZE - 10; | |
b8843665 | 68 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
69 | break; |
70 | } | |
b8843665 | 71 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 72 | } |
1dcdcd69 WF |
73 | if (res) |
74 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
75 | |
76 | rtnl_unlock(); | |
b76cdba9 MW |
77 | return res; |
78 | } | |
79 | ||
4c22400a | 80 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
81 | { |
82 | struct bonding *bond; | |
83 | ||
ec87fd3b | 84 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
85 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
86 | return bond->dev; | |
87 | } | |
88 | return NULL; | |
89 | } | |
90 | ||
b76cdba9 MW |
91 | /* |
92 | * "store" function for the bond_masters attribute. This is what | |
93 | * creates and deletes entire bonds. | |
94 | * | |
95 | * The class parameter is ignored. | |
96 | * | |
97 | */ | |
98 | ||
3d632c3f | 99 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 100 | struct class_attribute *attr, |
3d632c3f | 101 | const char *buffer, size_t count) |
b76cdba9 | 102 | { |
4c22400a EB |
103 | struct bond_net *bn = |
104 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
105 | char command[IFNAMSIZ + 1] = {0, }; |
106 | char *ifname; | |
027ea041 | 107 | int rv, res = count; |
b76cdba9 | 108 | |
b76cdba9 MW |
109 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
110 | ifname = command + 1; | |
111 | if ((strlen(command) <= 1) || | |
112 | !dev_valid_name(ifname)) | |
113 | goto err_no_cmd; | |
114 | ||
115 | if (command[0] == '+') { | |
a4aee5c8 | 116 | pr_info("%s is being created...\n", ifname); |
4c22400a | 117 | rv = bond_create(bn->net, ifname); |
027ea041 | 118 | if (rv) { |
5f86cad1 PO |
119 | if (rv == -EEXIST) |
120 | pr_info("%s already exists.\n", ifname); | |
121 | else | |
122 | pr_info("%s creation failed.\n", ifname); | |
027ea041 | 123 | res = rv; |
b76cdba9 | 124 | } |
373500db SH |
125 | } else if (command[0] == '-') { |
126 | struct net_device *bond_dev; | |
b76cdba9 | 127 | |
027ea041 | 128 | rtnl_lock(); |
4c22400a | 129 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 130 | if (bond_dev) { |
a4aee5c8 | 131 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
132 | unregister_netdevice(bond_dev); |
133 | } else { | |
a4aee5c8 | 134 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
135 | res = -ENODEV; |
136 | } | |
137 | rtnl_unlock(); | |
138 | } else | |
139 | goto err_no_cmd; | |
027ea041 | 140 | |
373500db SH |
141 | /* Always return either count or an error. If you return 0, you'll |
142 | * get called forever, which is bad. | |
143 | */ | |
144 | return res; | |
b76cdba9 MW |
145 | |
146 | err_no_cmd: | |
a4aee5c8 | 147 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 148 | return -EPERM; |
b76cdba9 | 149 | } |
373500db | 150 | |
b76cdba9 | 151 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
152 | static const struct class_attribute class_attr_bonding_masters = { |
153 | .attr = { | |
154 | .name = "bonding_masters", | |
155 | .mode = S_IWUSR | S_IRUGO, | |
156 | }, | |
157 | .show = bonding_show_bonds, | |
158 | .store = bonding_store_bonds, | |
4c22400a | 159 | }; |
b76cdba9 | 160 | |
b76cdba9 MW |
161 | /* |
162 | * Show the slaves in the current bond. | |
163 | */ | |
43cb76d9 GKH |
164 | static ssize_t bonding_show_slaves(struct device *d, |
165 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 166 | { |
43cb76d9 | 167 | struct bonding *bond = to_bond(d); |
9caff1e7 | 168 | struct list_head *iter; |
dec1e90e | 169 | struct slave *slave; |
170 | int res = 0; | |
b76cdba9 | 171 | |
4d1ae5fb | 172 | if (!rtnl_trylock()) |
173 | return restart_syscall(); | |
174 | ||
9caff1e7 | 175 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
176 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
177 | /* not enough space for another interface name */ | |
178 | if ((PAGE_SIZE - res) > 10) | |
179 | res = PAGE_SIZE - 10; | |
7bd46508 | 180 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
181 | break; |
182 | } | |
183 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
184 | } | |
4d1ae5fb | 185 | |
186 | rtnl_unlock(); | |
187 | ||
1dcdcd69 WF |
188 | if (res) |
189 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 190 | |
b76cdba9 MW |
191 | return res; |
192 | } | |
193 | ||
194 | /* | |
d6641ccf | 195 | * Set the slaves in the current bond. |
f9f3545e JP |
196 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
197 | * All hard work should be done there. | |
b76cdba9 | 198 | */ |
43cb76d9 GKH |
199 | static ssize_t bonding_store_slaves(struct device *d, |
200 | struct device_attribute *attr, | |
201 | const char *buffer, size_t count) | |
b76cdba9 MW |
202 | { |
203 | char command[IFNAMSIZ + 1] = { 0, }; | |
204 | char *ifname; | |
f9f3545e JP |
205 | int res, ret = count; |
206 | struct net_device *dev; | |
43cb76d9 | 207 | struct bonding *bond = to_bond(d); |
b76cdba9 | 208 | |
496a60cd EB |
209 | if (!rtnl_trylock()) |
210 | return restart_syscall(); | |
027ea041 | 211 | |
b76cdba9 MW |
212 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
213 | ifname = command + 1; | |
214 | if ((strlen(command) <= 1) || | |
215 | !dev_valid_name(ifname)) | |
216 | goto err_no_cmd; | |
217 | ||
f9f3545e JP |
218 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
219 | if (!dev) { | |
220 | pr_info("%s: Interface %s does not exist!\n", | |
221 | bond->dev->name, ifname); | |
222 | ret = -ENODEV; | |
223 | goto out; | |
224 | } | |
b76cdba9 | 225 | |
f9f3545e JP |
226 | switch (command[0]) { |
227 | case '+': | |
228 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 229 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 230 | break; |
3d632c3f | 231 | |
f9f3545e JP |
232 | case '-': |
233 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
234 | res = bond_release(bond->dev, dev); | |
235 | break; | |
b76cdba9 | 236 | |
f9f3545e JP |
237 | default: |
238 | goto err_no_cmd; | |
b76cdba9 MW |
239 | } |
240 | ||
f9f3545e JP |
241 | if (res) |
242 | ret = res; | |
243 | goto out; | |
244 | ||
b76cdba9 | 245 | err_no_cmd: |
a4aee5c8 JP |
246 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
247 | bond->dev->name); | |
b76cdba9 MW |
248 | ret = -EPERM; |
249 | ||
250 | out: | |
027ea041 | 251 | rtnl_unlock(); |
b76cdba9 MW |
252 | return ret; |
253 | } | |
254 | ||
3d632c3f SH |
255 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
256 | bonding_store_slaves); | |
b76cdba9 MW |
257 | |
258 | /* | |
259 | * Show and set the bonding mode. The bond interface must be down to | |
260 | * change the mode. | |
261 | */ | |
43cb76d9 GKH |
262 | static ssize_t bonding_show_mode(struct device *d, |
263 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 264 | { |
43cb76d9 | 265 | struct bonding *bond = to_bond(d); |
2b3798d5 | 266 | struct bond_opt_value *val; |
b76cdba9 | 267 | |
2b3798d5 NA |
268 | val = bond_opt_get_val(BOND_OPT_MODE, bond->params.mode); |
269 | ||
270 | return sprintf(buf, "%s %d\n", val->string, bond->params.mode); | |
b76cdba9 MW |
271 | } |
272 | ||
43cb76d9 GKH |
273 | static ssize_t bonding_store_mode(struct device *d, |
274 | struct device_attribute *attr, | |
275 | const char *buf, size_t count) | |
b76cdba9 | 276 | { |
43cb76d9 | 277 | struct bonding *bond = to_bond(d); |
2b3798d5 | 278 | int ret; |
b76cdba9 | 279 | |
2b3798d5 NA |
280 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_MODE, (char *)buf); |
281 | if (!ret) | |
72be35fe | 282 | ret = count; |
8f903c70 | 283 | |
b76cdba9 MW |
284 | return ret; |
285 | } | |
3d632c3f SH |
286 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
287 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
288 | |
289 | /* | |
3d632c3f | 290 | * Show and set the bonding transmit hash method. |
b76cdba9 | 291 | */ |
43cb76d9 GKH |
292 | static ssize_t bonding_show_xmit_hash(struct device *d, |
293 | struct device_attribute *attr, | |
294 | char *buf) | |
b76cdba9 | 295 | { |
43cb76d9 | 296 | struct bonding *bond = to_bond(d); |
a4b32ce7 NA |
297 | struct bond_opt_value *val; |
298 | ||
299 | val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy); | |
b76cdba9 | 300 | |
a4b32ce7 | 301 | return sprintf(buf, "%s %d\n", val->string, bond->params.xmit_policy); |
b76cdba9 MW |
302 | } |
303 | ||
43cb76d9 GKH |
304 | static ssize_t bonding_store_xmit_hash(struct device *d, |
305 | struct device_attribute *attr, | |
306 | const char *buf, size_t count) | |
b76cdba9 | 307 | { |
43cb76d9 | 308 | struct bonding *bond = to_bond(d); |
a4b32ce7 | 309 | int ret; |
b76cdba9 | 310 | |
a4b32ce7 | 311 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_XMIT_HASH, (char *)buf); |
f70161c6 | 312 | if (!ret) |
313 | ret = count; | |
314 | ||
b76cdba9 MW |
315 | return ret; |
316 | } | |
3d632c3f SH |
317 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
318 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 319 | |
f5b2b966 JV |
320 | /* |
321 | * Show and set arp_validate. | |
322 | */ | |
43cb76d9 GKH |
323 | static ssize_t bonding_show_arp_validate(struct device *d, |
324 | struct device_attribute *attr, | |
325 | char *buf) | |
f5b2b966 | 326 | { |
43cb76d9 | 327 | struct bonding *bond = to_bond(d); |
16228881 NA |
328 | struct bond_opt_value *val; |
329 | ||
330 | val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE, | |
331 | bond->params.arp_validate); | |
f5b2b966 | 332 | |
16228881 | 333 | return sprintf(buf, "%s %d\n", val->string, bond->params.arp_validate); |
f5b2b966 JV |
334 | } |
335 | ||
43cb76d9 GKH |
336 | static ssize_t bonding_store_arp_validate(struct device *d, |
337 | struct device_attribute *attr, | |
338 | const char *buf, size_t count) | |
f5b2b966 | 339 | { |
43cb76d9 | 340 | struct bonding *bond = to_bond(d); |
16228881 | 341 | int ret; |
29c49482 | 342 | |
16228881 | 343 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_VALIDATE, (char *)buf); |
29c49482 | 344 | if (!ret) |
345 | ret = count; | |
346 | ||
5c5038dc | 347 | return ret; |
f5b2b966 JV |
348 | } |
349 | ||
3d632c3f SH |
350 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
351 | bonding_store_arp_validate); | |
8599b52e VF |
352 | /* |
353 | * Show and set arp_all_targets. | |
354 | */ | |
355 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
356 | struct device_attribute *attr, | |
357 | char *buf) | |
358 | { | |
359 | struct bonding *bond = to_bond(d); | |
edf36b24 | 360 | struct bond_opt_value *val; |
8599b52e | 361 | |
edf36b24 NA |
362 | val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS, |
363 | bond->params.arp_all_targets); | |
364 | return sprintf(buf, "%s %d\n", | |
365 | val->string, bond->params.arp_all_targets); | |
8599b52e VF |
366 | } |
367 | ||
368 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
369 | struct device_attribute *attr, | |
370 | const char *buf, size_t count) | |
371 | { | |
372 | struct bonding *bond = to_bond(d); | |
edf36b24 | 373 | int ret; |
8599b52e | 374 | |
edf36b24 | 375 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_ALL_TARGETS, (char *)buf); |
d5c84254 | 376 | if (!ret) |
377 | ret = count; | |
378 | ||
d5c84254 | 379 | return ret; |
8599b52e VF |
380 | } |
381 | ||
382 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
383 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 384 | |
dd957c57 JV |
385 | /* |
386 | * Show and store fail_over_mac. User only allowed to change the | |
387 | * value when there are no slaves. | |
388 | */ | |
3d632c3f SH |
389 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
390 | struct device_attribute *attr, | |
391 | char *buf) | |
dd957c57 JV |
392 | { |
393 | struct bonding *bond = to_bond(d); | |
1df6b6aa | 394 | struct bond_opt_value *val; |
dd957c57 | 395 | |
1df6b6aa NA |
396 | val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, |
397 | bond->params.fail_over_mac); | |
398 | ||
399 | return sprintf(buf, "%s %d\n", val->string, bond->params.fail_over_mac); | |
dd957c57 JV |
400 | } |
401 | ||
3d632c3f SH |
402 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
403 | struct device_attribute *attr, | |
404 | const char *buf, size_t count) | |
dd957c57 | 405 | { |
dd957c57 | 406 | struct bonding *bond = to_bond(d); |
1df6b6aa | 407 | int ret; |
dd957c57 | 408 | |
1df6b6aa | 409 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_FAIL_OVER_MAC, (char *)buf); |
89901972 | 410 | if (!ret) |
411 | ret = count; | |
3915c1e8 | 412 | |
9402b746 | 413 | return ret; |
dd957c57 JV |
414 | } |
415 | ||
3d632c3f SH |
416 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
417 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 418 | |
b76cdba9 MW |
419 | /* |
420 | * Show and set the arp timer interval. There are two tricky bits | |
421 | * here. First, if ARP monitoring is activated, then we must disable | |
422 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
423 | * start it. | |
424 | */ | |
43cb76d9 GKH |
425 | static ssize_t bonding_show_arp_interval(struct device *d, |
426 | struct device_attribute *attr, | |
427 | char *buf) | |
b76cdba9 | 428 | { |
43cb76d9 | 429 | struct bonding *bond = to_bond(d); |
b76cdba9 | 430 | |
7bd46508 | 431 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
432 | } |
433 | ||
43cb76d9 GKH |
434 | static ssize_t bonding_store_arp_interval(struct device *d, |
435 | struct device_attribute *attr, | |
436 | const char *buf, size_t count) | |
b76cdba9 | 437 | { |
43cb76d9 | 438 | struct bonding *bond = to_bond(d); |
7bdb04ed | 439 | int ret; |
06151dbc | 440 | |
7bdb04ed | 441 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_INTERVAL, (char *)buf); |
06151dbc | 442 | if (!ret) |
443 | ret = count; | |
444 | ||
b76cdba9 MW |
445 | return ret; |
446 | } | |
3d632c3f SH |
447 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
448 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
449 | |
450 | /* | |
451 | * Show and set the arp targets. | |
452 | */ | |
43cb76d9 GKH |
453 | static ssize_t bonding_show_arp_targets(struct device *d, |
454 | struct device_attribute *attr, | |
455 | char *buf) | |
b76cdba9 | 456 | { |
43cb76d9 | 457 | struct bonding *bond = to_bond(d); |
4fb0ef58 | 458 | int i, res = 0; |
b76cdba9 MW |
459 | |
460 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
461 | if (bond->params.arp_targets[i]) | |
63779436 HH |
462 | res += sprintf(buf + res, "%pI4 ", |
463 | &bond->params.arp_targets[i]); | |
b76cdba9 | 464 | } |
1dcdcd69 WF |
465 | if (res) |
466 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4fb0ef58 | 467 | |
b76cdba9 MW |
468 | return res; |
469 | } | |
470 | ||
43cb76d9 GKH |
471 | static ssize_t bonding_store_arp_targets(struct device *d, |
472 | struct device_attribute *attr, | |
473 | const char *buf, size_t count) | |
b76cdba9 | 474 | { |
43cb76d9 | 475 | struct bonding *bond = to_bond(d); |
4fb0ef58 | 476 | int ret; |
b76cdba9 | 477 | |
4fb0ef58 | 478 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_TARGETS, (char *)buf); |
7f28fa10 | 479 | if (!ret) |
480 | ret = count; | |
481 | ||
b76cdba9 MW |
482 | return ret; |
483 | } | |
43cb76d9 | 484 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
485 | |
486 | /* | |
487 | * Show and set the up and down delays. These must be multiples of the | |
488 | * MII monitoring value, and are stored internally as the multiplier. | |
489 | * Thus, we must translate to MS for the real world. | |
490 | */ | |
43cb76d9 GKH |
491 | static ssize_t bonding_show_downdelay(struct device *d, |
492 | struct device_attribute *attr, | |
493 | char *buf) | |
b76cdba9 | 494 | { |
43cb76d9 | 495 | struct bonding *bond = to_bond(d); |
b76cdba9 | 496 | |
7bd46508 | 497 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
498 | } |
499 | ||
43cb76d9 GKH |
500 | static ssize_t bonding_store_downdelay(struct device *d, |
501 | struct device_attribute *attr, | |
502 | const char *buf, size_t count) | |
b76cdba9 | 503 | { |
43cb76d9 | 504 | struct bonding *bond = to_bond(d); |
25a9b54a | 505 | int ret; |
b76cdba9 | 506 | |
25a9b54a | 507 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_DOWNDELAY, (char *)buf); |
c7461f9b | 508 | if (!ret) |
509 | ret = count; | |
b76cdba9 | 510 | |
b76cdba9 MW |
511 | return ret; |
512 | } | |
3d632c3f SH |
513 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
514 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 515 | |
43cb76d9 GKH |
516 | static ssize_t bonding_show_updelay(struct device *d, |
517 | struct device_attribute *attr, | |
518 | char *buf) | |
b76cdba9 | 519 | { |
43cb76d9 | 520 | struct bonding *bond = to_bond(d); |
b76cdba9 | 521 | |
7bd46508 | 522 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
523 | |
524 | } | |
525 | ||
43cb76d9 GKH |
526 | static ssize_t bonding_store_updelay(struct device *d, |
527 | struct device_attribute *attr, | |
528 | const char *buf, size_t count) | |
b76cdba9 | 529 | { |
25852e29 | 530 | int new_value, ret; |
43cb76d9 | 531 | struct bonding *bond = to_bond(d); |
b76cdba9 | 532 | |
b76cdba9 | 533 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 534 | pr_err("%s: no up delay value specified.\n", |
25852e29 | 535 | bond->dev->name); |
536 | return -EINVAL; | |
b76cdba9 MW |
537 | } |
538 | ||
25852e29 | 539 | if (!rtnl_trylock()) |
540 | return restart_syscall(); | |
541 | ||
542 | ret = bond_option_updelay_set(bond, new_value); | |
543 | if (!ret) | |
544 | ret = count; | |
545 | ||
b869ccfa | 546 | rtnl_unlock(); |
b76cdba9 MW |
547 | return ret; |
548 | } | |
3d632c3f SH |
549 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
550 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
551 | |
552 | /* | |
553 | * Show and set the LACP interval. Interface must be down, and the mode | |
554 | * must be set to 802.3ad mode. | |
555 | */ | |
43cb76d9 GKH |
556 | static ssize_t bonding_show_lacp(struct device *d, |
557 | struct device_attribute *attr, | |
558 | char *buf) | |
b76cdba9 | 559 | { |
43cb76d9 | 560 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
561 | |
562 | return sprintf(buf, "%s %d\n", | |
563 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 564 | bond->params.lacp_fast); |
b76cdba9 MW |
565 | } |
566 | ||
43cb76d9 GKH |
567 | static ssize_t bonding_store_lacp(struct device *d, |
568 | struct device_attribute *attr, | |
569 | const char *buf, size_t count) | |
b76cdba9 | 570 | { |
43cb76d9 | 571 | struct bonding *bond = to_bond(d); |
998e40bb | 572 | int new_value, ret; |
b76cdba9 | 573 | |
ece95f7f | 574 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
998e40bb | 575 | if (new_value < 0) { |
a4aee5c8 | 576 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 577 | bond->dev->name, (int)strlen(buf) - 1, buf); |
998e40bb | 578 | return -EINVAL; |
b76cdba9 | 579 | } |
c509316b | 580 | |
998e40bb | 581 | if (!rtnl_trylock()) |
582 | return restart_syscall(); | |
583 | ||
584 | ret = bond_option_lacp_rate_set(bond, new_value); | |
585 | if (!ret) | |
586 | ret = count; | |
587 | ||
588 | rtnl_unlock(); | |
b76cdba9 MW |
589 | return ret; |
590 | } | |
3d632c3f SH |
591 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
592 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 593 | |
655f8919 | 594 | static ssize_t bonding_show_min_links(struct device *d, |
595 | struct device_attribute *attr, | |
596 | char *buf) | |
597 | { | |
598 | struct bonding *bond = to_bond(d); | |
599 | ||
600 | return sprintf(buf, "%d\n", bond->params.min_links); | |
601 | } | |
602 | ||
603 | static ssize_t bonding_store_min_links(struct device *d, | |
604 | struct device_attribute *attr, | |
605 | const char *buf, size_t count) | |
606 | { | |
607 | struct bonding *bond = to_bond(d); | |
608 | int ret; | |
609 | unsigned int new_value; | |
610 | ||
611 | ret = kstrtouint(buf, 0, &new_value); | |
612 | if (ret < 0) { | |
613 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
614 | bond->dev->name, buf); | |
615 | return ret; | |
616 | } | |
617 | ||
7d101008 | 618 | if (!rtnl_trylock()) |
619 | return restart_syscall(); | |
620 | ||
621 | ret = bond_option_min_links_set(bond, new_value); | |
622 | if (!ret) | |
623 | ret = count; | |
624 | ||
625 | rtnl_unlock(); | |
626 | return ret; | |
655f8919 | 627 | } |
628 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
629 | bonding_show_min_links, bonding_store_min_links); | |
630 | ||
fd989c83 JV |
631 | static ssize_t bonding_show_ad_select(struct device *d, |
632 | struct device_attribute *attr, | |
633 | char *buf) | |
634 | { | |
635 | struct bonding *bond = to_bond(d); | |
636 | ||
637 | return sprintf(buf, "%s %d\n", | |
638 | ad_select_tbl[bond->params.ad_select].modename, | |
639 | bond->params.ad_select); | |
640 | } | |
641 | ||
642 | ||
643 | static ssize_t bonding_store_ad_select(struct device *d, | |
644 | struct device_attribute *attr, | |
645 | const char *buf, size_t count) | |
646 | { | |
ec029fac | 647 | int new_value, ret; |
fd989c83 JV |
648 | struct bonding *bond = to_bond(d); |
649 | ||
fd989c83 | 650 | new_value = bond_parse_parm(buf, ad_select_tbl); |
ec029fac | 651 | if (new_value < 0) { |
a4aee5c8 | 652 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 | 653 | bond->dev->name, (int)strlen(buf) - 1, buf); |
ec029fac | 654 | return -EINVAL; |
fd989c83 | 655 | } |
ec029fac | 656 | |
657 | if (!rtnl_trylock()) | |
658 | return restart_syscall(); | |
659 | ||
660 | ret = bond_option_ad_select_set(bond, new_value); | |
661 | if (!ret) | |
662 | ret = count; | |
663 | ||
664 | rtnl_unlock(); | |
fd989c83 JV |
665 | return ret; |
666 | } | |
3d632c3f SH |
667 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
668 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 669 | |
ad246c99 BH |
670 | /* |
671 | * Show and set the number of peer notifications to send after a failover event. | |
672 | */ | |
673 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
674 | struct device_attribute *attr, | |
675 | char *buf) | |
676 | { | |
677 | struct bonding *bond = to_bond(d); | |
678 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
679 | } | |
680 | ||
681 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
682 | struct device_attribute *attr, | |
683 | const char *buf, size_t count) | |
684 | { | |
685 | struct bonding *bond = to_bond(d); | |
2c9839c1 | 686 | u8 new_value; |
687 | int ret; | |
688 | ||
689 | ret = kstrtou8(buf, 10, &new_value); | |
0b23810d | 690 | if (ret) { |
2c9839c1 | 691 | pr_err("%s: invalid value %s specified.\n", |
692 | bond->dev->name, buf); | |
693 | return ret; | |
694 | } | |
695 | ||
696 | if (!rtnl_trylock()) | |
697 | return restart_syscall(); | |
698 | ||
699 | ret = bond_option_num_peer_notif_set(bond, new_value); | |
700 | if (!ret) | |
701 | ret = count; | |
702 | ||
703 | rtnl_unlock(); | |
704 | return ret; | |
ad246c99 BH |
705 | } |
706 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
707 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
708 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
709 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
710 | ||
b76cdba9 MW |
711 | /* |
712 | * Show and set the MII monitor interval. There are two tricky bits | |
713 | * here. First, if MII monitoring is activated, then we must disable | |
714 | * ARP monitoring. Second, if the timer isn't running, we must | |
715 | * start it. | |
716 | */ | |
43cb76d9 GKH |
717 | static ssize_t bonding_show_miimon(struct device *d, |
718 | struct device_attribute *attr, | |
719 | char *buf) | |
b76cdba9 | 720 | { |
43cb76d9 | 721 | struct bonding *bond = to_bond(d); |
b76cdba9 | 722 | |
7bd46508 | 723 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
724 | } |
725 | ||
43cb76d9 GKH |
726 | static ssize_t bonding_store_miimon(struct device *d, |
727 | struct device_attribute *attr, | |
728 | const char *buf, size_t count) | |
b76cdba9 | 729 | { |
eecdaa6e | 730 | int new_value, ret; |
43cb76d9 | 731 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
732 | |
733 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 734 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 | 735 | bond->dev->name); |
eecdaa6e | 736 | return -EINVAL; |
b76cdba9 | 737 | } |
eecdaa6e | 738 | |
739 | if (!rtnl_trylock()) | |
740 | return restart_syscall(); | |
741 | ||
742 | ret = bond_option_miimon_set(bond, new_value); | |
743 | if (!ret) | |
744 | ret = count; | |
745 | ||
fbb0c41b | 746 | rtnl_unlock(); |
b76cdba9 MW |
747 | return ret; |
748 | } | |
3d632c3f SH |
749 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
750 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
751 | |
752 | /* | |
753 | * Show and set the primary slave. The store function is much | |
754 | * simpler than bonding_store_slaves function because it only needs to | |
755 | * handle one interface name. | |
756 | * The bond must be a mode that supports a primary for this be | |
757 | * set. | |
758 | */ | |
43cb76d9 GKH |
759 | static ssize_t bonding_show_primary(struct device *d, |
760 | struct device_attribute *attr, | |
761 | char *buf) | |
b76cdba9 MW |
762 | { |
763 | int count = 0; | |
43cb76d9 | 764 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
765 | |
766 | if (bond->primary_slave) | |
7bd46508 | 767 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
768 | |
769 | return count; | |
770 | } | |
771 | ||
43cb76d9 GKH |
772 | static ssize_t bonding_store_primary(struct device *d, |
773 | struct device_attribute *attr, | |
774 | const char *buf, size_t count) | |
b76cdba9 | 775 | { |
43cb76d9 | 776 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 777 | char ifname[IFNAMSIZ]; |
0a98a0d1 | 778 | int ret; |
b76cdba9 | 779 | |
eb6e98a1 | 780 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
0a98a0d1 | 781 | if (ifname[0] == '\n') |
782 | ifname[0] = '\0'; | |
b76cdba9 | 783 | |
0a98a0d1 | 784 | if (!rtnl_trylock()) |
785 | return restart_syscall(); | |
f4bb2e9c | 786 | |
0a98a0d1 | 787 | ret = bond_option_primary_set(bond, ifname); |
788 | if (!ret) | |
789 | ret = count; | |
8a93664d | 790 | |
6603a6f2 | 791 | rtnl_unlock(); |
0a98a0d1 | 792 | return ret; |
b76cdba9 | 793 | } |
3d632c3f SH |
794 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
795 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 796 | |
a549952a JP |
797 | /* |
798 | * Show and set the primary_reselect flag. | |
799 | */ | |
800 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
801 | struct device_attribute *attr, | |
802 | char *buf) | |
803 | { | |
804 | struct bonding *bond = to_bond(d); | |
805 | ||
806 | return sprintf(buf, "%s %d\n", | |
807 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
808 | bond->params.primary_reselect); | |
809 | } | |
810 | ||
811 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
812 | struct device_attribute *attr, | |
813 | const char *buf, size_t count) | |
814 | { | |
8a41ae44 | 815 | int new_value, ret; |
a549952a JP |
816 | struct bonding *bond = to_bond(d); |
817 | ||
a549952a JP |
818 | new_value = bond_parse_parm(buf, pri_reselect_tbl); |
819 | if (new_value < 0) { | |
a4aee5c8 | 820 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
821 | bond->dev->name, |
822 | (int) strlen(buf) - 1, buf); | |
8a41ae44 | 823 | return -EINVAL; |
a549952a JP |
824 | } |
825 | ||
8a41ae44 | 826 | if (!rtnl_trylock()) |
827 | return restart_syscall(); | |
828 | ||
829 | ret = bond_option_primary_reselect_set(bond, new_value); | |
830 | if (!ret) | |
831 | ret = count; | |
a549952a | 832 | |
a549952a JP |
833 | rtnl_unlock(); |
834 | return ret; | |
835 | } | |
836 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
837 | bonding_show_primary_reselect, | |
838 | bonding_store_primary_reselect); | |
839 | ||
b76cdba9 MW |
840 | /* |
841 | * Show and set the use_carrier flag. | |
842 | */ | |
43cb76d9 GKH |
843 | static ssize_t bonding_show_carrier(struct device *d, |
844 | struct device_attribute *attr, | |
845 | char *buf) | |
b76cdba9 | 846 | { |
43cb76d9 | 847 | struct bonding *bond = to_bond(d); |
b76cdba9 | 848 | |
7bd46508 | 849 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
850 | } |
851 | ||
43cb76d9 GKH |
852 | static ssize_t bonding_store_carrier(struct device *d, |
853 | struct device_attribute *attr, | |
854 | const char *buf, size_t count) | |
b76cdba9 | 855 | { |
9f53e14e | 856 | int new_value, ret; |
43cb76d9 | 857 | struct bonding *bond = to_bond(d); |
b76cdba9 | 858 | |
b76cdba9 | 859 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 860 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 | 861 | bond->dev->name); |
9f53e14e | 862 | return -EINVAL; |
b76cdba9 | 863 | } |
9f53e14e | 864 | |
865 | if (!rtnl_trylock()) | |
866 | return restart_syscall(); | |
867 | ||
868 | ret = bond_option_use_carrier_set(bond, new_value); | |
869 | if (!ret) | |
870 | ret = count; | |
871 | ||
872 | rtnl_unlock(); | |
672bda33 | 873 | return ret; |
b76cdba9 | 874 | } |
3d632c3f SH |
875 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
876 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
877 | |
878 | ||
879 | /* | |
880 | * Show and set currently active_slave. | |
881 | */ | |
43cb76d9 GKH |
882 | static ssize_t bonding_show_active_slave(struct device *d, |
883 | struct device_attribute *attr, | |
884 | char *buf) | |
b76cdba9 | 885 | { |
43cb76d9 | 886 | struct bonding *bond = to_bond(d); |
752d48b5 | 887 | struct net_device *slave_dev; |
16cd0160 | 888 | int count = 0; |
b76cdba9 | 889 | |
278b2083 | 890 | rcu_read_lock(); |
752d48b5 JP |
891 | slave_dev = bond_option_active_slave_get_rcu(bond); |
892 | if (slave_dev) | |
893 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 894 | rcu_read_unlock(); |
895 | ||
b76cdba9 MW |
896 | return count; |
897 | } | |
898 | ||
43cb76d9 GKH |
899 | static ssize_t bonding_store_active_slave(struct device *d, |
900 | struct device_attribute *attr, | |
901 | const char *buf, size_t count) | |
b76cdba9 | 902 | { |
d9e32b21 | 903 | int ret; |
43cb76d9 | 904 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 905 | char ifname[IFNAMSIZ]; |
d9e32b21 | 906 | struct net_device *dev; |
b76cdba9 | 907 | |
496a60cd EB |
908 | if (!rtnl_trylock()) |
909 | return restart_syscall(); | |
e843fa50 | 910 | |
c84e1590 | 911 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c | 912 | if (!strlen(ifname) || buf[0] == '\n') { |
d9e32b21 JP |
913 | dev = NULL; |
914 | } else { | |
915 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
916 | if (!dev) { | |
917 | ret = -ENODEV; | |
918 | goto out; | |
b76cdba9 | 919 | } |
b76cdba9 | 920 | } |
f4bb2e9c | 921 | |
d9e32b21 JP |
922 | ret = bond_option_active_slave_set(bond, dev); |
923 | if (!ret) | |
924 | ret = count; | |
e843fa50 | 925 | |
d9e32b21 | 926 | out: |
6603a6f2 JV |
927 | rtnl_unlock(); |
928 | ||
d9e32b21 | 929 | return ret; |
b76cdba9 MW |
930 | |
931 | } | |
3d632c3f SH |
932 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
933 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
934 | |
935 | ||
936 | /* | |
937 | * Show link status of the bond interface. | |
938 | */ | |
43cb76d9 GKH |
939 | static ssize_t bonding_show_mii_status(struct device *d, |
940 | struct device_attribute *attr, | |
941 | char *buf) | |
b76cdba9 | 942 | { |
43cb76d9 | 943 | struct bonding *bond = to_bond(d); |
b76cdba9 | 944 | |
278b2083 | 945 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 946 | } |
43cb76d9 | 947 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 948 | |
b76cdba9 MW |
949 | /* |
950 | * Show current 802.3ad aggregator ID. | |
951 | */ | |
43cb76d9 GKH |
952 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
953 | struct device_attribute *attr, | |
954 | char *buf) | |
b76cdba9 MW |
955 | { |
956 | int count = 0; | |
43cb76d9 | 957 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
958 | |
959 | if (bond->params.mode == BOND_MODE_8023AD) { | |
960 | struct ad_info ad_info; | |
3d632c3f | 961 | count = sprintf(buf, "%d\n", |
318debd8 | 962 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 963 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 964 | } |
b76cdba9 MW |
965 | |
966 | return count; | |
967 | } | |
43cb76d9 | 968 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
969 | |
970 | ||
971 | /* | |
972 | * Show number of active 802.3ad ports. | |
973 | */ | |
43cb76d9 GKH |
974 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
975 | struct device_attribute *attr, | |
976 | char *buf) | |
b76cdba9 MW |
977 | { |
978 | int count = 0; | |
43cb76d9 | 979 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
980 | |
981 | if (bond->params.mode == BOND_MODE_8023AD) { | |
982 | struct ad_info ad_info; | |
3d632c3f | 983 | count = sprintf(buf, "%d\n", |
318debd8 | 984 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 985 | ? 0 : ad_info.ports); |
b76cdba9 | 986 | } |
b76cdba9 MW |
987 | |
988 | return count; | |
989 | } | |
43cb76d9 | 990 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
991 | |
992 | ||
993 | /* | |
994 | * Show current 802.3ad actor key. | |
995 | */ | |
43cb76d9 GKH |
996 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
997 | struct device_attribute *attr, | |
998 | char *buf) | |
b76cdba9 MW |
999 | { |
1000 | int count = 0; | |
43cb76d9 | 1001 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1002 | |
1003 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1004 | struct ad_info ad_info; | |
3d632c3f | 1005 | count = sprintf(buf, "%d\n", |
318debd8 | 1006 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1007 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1008 | } |
b76cdba9 MW |
1009 | |
1010 | return count; | |
1011 | } | |
43cb76d9 | 1012 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1013 | |
1014 | ||
1015 | /* | |
1016 | * Show current 802.3ad partner key. | |
1017 | */ | |
43cb76d9 GKH |
1018 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1019 | struct device_attribute *attr, | |
1020 | char *buf) | |
b76cdba9 MW |
1021 | { |
1022 | int count = 0; | |
43cb76d9 | 1023 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1024 | |
1025 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1026 | struct ad_info ad_info; | |
3d632c3f | 1027 | count = sprintf(buf, "%d\n", |
318debd8 | 1028 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1029 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1030 | } |
b76cdba9 MW |
1031 | |
1032 | return count; | |
1033 | } | |
43cb76d9 | 1034 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1035 | |
1036 | ||
1037 | /* | |
1038 | * Show current 802.3ad partner mac. | |
1039 | */ | |
43cb76d9 GKH |
1040 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1041 | struct device_attribute *attr, | |
1042 | char *buf) | |
b76cdba9 MW |
1043 | { |
1044 | int count = 0; | |
43cb76d9 | 1045 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1046 | |
1047 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1048 | struct ad_info ad_info; | |
3d632c3f | 1049 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1050 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1051 | } |
b76cdba9 MW |
1052 | |
1053 | return count; | |
1054 | } | |
43cb76d9 | 1055 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1056 | |
bb1d9123 AG |
1057 | /* |
1058 | * Show the queue_ids of the slaves in the current bond. | |
1059 | */ | |
1060 | static ssize_t bonding_show_queue_id(struct device *d, | |
1061 | struct device_attribute *attr, | |
1062 | char *buf) | |
1063 | { | |
bb1d9123 | 1064 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1065 | struct list_head *iter; |
dec1e90e | 1066 | struct slave *slave; |
1067 | int res = 0; | |
bb1d9123 AG |
1068 | |
1069 | if (!rtnl_trylock()) | |
1070 | return restart_syscall(); | |
1071 | ||
9caff1e7 | 1072 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1073 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1074 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1075 | if ((PAGE_SIZE - res) > 10) |
1076 | res = PAGE_SIZE - 10; | |
1077 | res += sprintf(buf + res, "++more++ "); | |
1078 | break; | |
1079 | } | |
1080 | res += sprintf(buf + res, "%s:%d ", | |
1081 | slave->dev->name, slave->queue_id); | |
1082 | } | |
bb1d9123 AG |
1083 | if (res) |
1084 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1085 | |
bb1d9123 | 1086 | rtnl_unlock(); |
dec1e90e | 1087 | |
bb1d9123 AG |
1088 | return res; |
1089 | } | |
1090 | ||
1091 | /* | |
1092 | * Set the queue_ids of the slaves in the current bond. The bond | |
1093 | * interface must be enslaved for this to work. | |
1094 | */ | |
1095 | static ssize_t bonding_store_queue_id(struct device *d, | |
1096 | struct device_attribute *attr, | |
1097 | const char *buffer, size_t count) | |
1098 | { | |
1099 | struct slave *slave, *update_slave; | |
1100 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1101 | struct list_head *iter; |
bb1d9123 | 1102 | u16 qid; |
dec1e90e | 1103 | int ret = count; |
bb1d9123 AG |
1104 | char *delim; |
1105 | struct net_device *sdev = NULL; | |
1106 | ||
1107 | if (!rtnl_trylock()) | |
1108 | return restart_syscall(); | |
1109 | ||
1110 | /* delim will point to queue id if successful */ | |
1111 | delim = strchr(buffer, ':'); | |
1112 | if (!delim) | |
1113 | goto err_no_cmd; | |
1114 | ||
1115 | /* | |
1116 | * Terminate string that points to device name and bump it | |
1117 | * up one, so we can read the queue id there. | |
1118 | */ | |
1119 | *delim = '\0'; | |
1120 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1121 | goto err_no_cmd; | |
1122 | ||
1123 | /* Check buffer length, valid ifname and queue id */ | |
1124 | if (strlen(buffer) > IFNAMSIZ || | |
1125 | !dev_valid_name(buffer) || | |
8a540ff9 | 1126 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1127 | goto err_no_cmd; |
1128 | ||
1129 | /* Get the pointer to that interface if it exists */ | |
1130 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1131 | if (!sdev) | |
1132 | goto err_no_cmd; | |
1133 | ||
bb1d9123 AG |
1134 | /* Search for thes slave and check for duplicate qids */ |
1135 | update_slave = NULL; | |
9caff1e7 | 1136 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1137 | if (sdev == slave->dev) |
1138 | /* | |
1139 | * We don't need to check the matching | |
1140 | * slave for dups, since we're overwriting it | |
1141 | */ | |
1142 | update_slave = slave; | |
1143 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1144 | goto err_no_cmd; |
bb1d9123 AG |
1145 | } |
1146 | } | |
1147 | ||
1148 | if (!update_slave) | |
4d1ae5fb | 1149 | goto err_no_cmd; |
bb1d9123 AG |
1150 | |
1151 | /* Actually set the qids for the slave */ | |
1152 | update_slave->queue_id = qid; | |
1153 | ||
bb1d9123 AG |
1154 | out: |
1155 | rtnl_unlock(); | |
1156 | return ret; | |
1157 | ||
bb1d9123 AG |
1158 | err_no_cmd: |
1159 | pr_info("invalid input for queue_id set for %s.\n", | |
1160 | bond->dev->name); | |
1161 | ret = -EPERM; | |
1162 | goto out; | |
1163 | } | |
1164 | ||
1165 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1166 | bonding_store_queue_id); | |
1167 | ||
1168 | ||
ebd8e497 AG |
1169 | /* |
1170 | * Show and set the all_slaves_active flag. | |
1171 | */ | |
1172 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1173 | struct device_attribute *attr, | |
1174 | char *buf) | |
1175 | { | |
1176 | struct bonding *bond = to_bond(d); | |
1177 | ||
1178 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1179 | } | |
1180 | ||
1181 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1182 | struct device_attribute *attr, | |
1183 | const char *buf, size_t count) | |
1184 | { | |
ebd8e497 | 1185 | struct bonding *bond = to_bond(d); |
1cc0b1e3 | 1186 | int new_value, ret; |
4d1ae5fb | 1187 | |
ebd8e497 AG |
1188 | if (sscanf(buf, "%d", &new_value) != 1) { |
1189 | pr_err("%s: no all_slaves_active value specified.\n", | |
1190 | bond->dev->name); | |
1cc0b1e3 | 1191 | return -EINVAL; |
ebd8e497 AG |
1192 | } |
1193 | ||
1cc0b1e3 | 1194 | if (!rtnl_trylock()) |
1195 | return restart_syscall(); | |
ebd8e497 | 1196 | |
1cc0b1e3 | 1197 | ret = bond_option_all_slaves_active_set(bond, new_value); |
1198 | if (!ret) | |
1199 | ret = count; | |
b76cdba9 | 1200 | |
4d1ae5fb | 1201 | rtnl_unlock(); |
672bda33 | 1202 | return ret; |
ebd8e497 AG |
1203 | } |
1204 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1205 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1206 | |
c2952c31 FL |
1207 | /* |
1208 | * Show and set the number of IGMP membership reports to send on link failure | |
1209 | */ | |
1210 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1211 | struct device_attribute *attr, |
1212 | char *buf) | |
c2952c31 FL |
1213 | { |
1214 | struct bonding *bond = to_bond(d); | |
1215 | ||
1216 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1217 | } | |
1218 | ||
1219 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1220 | struct device_attribute *attr, |
1221 | const char *buf, size_t count) | |
c2952c31 FL |
1222 | { |
1223 | int new_value, ret = count; | |
1224 | struct bonding *bond = to_bond(d); | |
1225 | ||
1226 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1227 | pr_err("%s: no resend_igmp value specified.\n", | |
1228 | bond->dev->name); | |
d8838de7 | 1229 | return -EINVAL; |
c2952c31 FL |
1230 | } |
1231 | ||
d8838de7 | 1232 | if (!rtnl_trylock()) |
1233 | return restart_syscall(); | |
c2952c31 | 1234 | |
d8838de7 | 1235 | ret = bond_option_resend_igmp_set(bond, new_value); |
1236 | if (!ret) | |
1237 | ret = count; | |
1238 | ||
1239 | rtnl_unlock(); | |
c2952c31 FL |
1240 | return ret; |
1241 | } | |
1242 | ||
1243 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1244 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1245 | ||
7eacd038 NH |
1246 | |
1247 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1248 | struct device_attribute *attr, | |
1249 | char *buf) | |
1250 | { | |
1251 | struct bonding *bond = to_bond(d); | |
1252 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1253 | } | |
1254 | ||
1255 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1256 | struct device_attribute *attr, | |
1257 | const char *buf, size_t count) | |
1258 | { | |
1259 | struct bonding *bond = to_bond(d); | |
8d836d09 | 1260 | int new_value, ret; |
7eacd038 NH |
1261 | |
1262 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1263 | pr_err("%s: no lp interval value specified.\n", | |
1264 | bond->dev->name); | |
8d836d09 | 1265 | return -EINVAL; |
7eacd038 NH |
1266 | } |
1267 | ||
8d836d09 | 1268 | if (!rtnl_trylock()) |
1269 | return restart_syscall(); | |
7eacd038 | 1270 | |
8d836d09 | 1271 | ret = bond_option_lp_interval_set(bond, new_value); |
1272 | if (!ret) | |
1273 | ret = count; | |
1274 | ||
1275 | rtnl_unlock(); | |
7eacd038 NH |
1276 | return ret; |
1277 | } | |
1278 | ||
1279 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1280 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1281 | ||
73958329 NA |
1282 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
1283 | struct device_attribute *attr, | |
1284 | char *buf) | |
1285 | { | |
1286 | struct bonding *bond = to_bond(d); | |
a752a8b9 | 1287 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
a752a8b9 | 1288 | return sprintf(buf, "%u\n", packets_per_slave); |
73958329 NA |
1289 | } |
1290 | ||
1291 | static ssize_t bonding_store_packets_per_slave(struct device *d, | |
1292 | struct device_attribute *attr, | |
1293 | const char *buf, size_t count) | |
1294 | { | |
1295 | struct bonding *bond = to_bond(d); | |
aa59d851 | 1296 | int ret; |
c13ab3ff | 1297 | |
aa59d851 NA |
1298 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PACKETS_PER_SLAVE, |
1299 | (char *)buf); | |
c13ab3ff | 1300 | if (!ret) |
1301 | ret = count; | |
1302 | ||
73958329 NA |
1303 | return ret; |
1304 | } | |
1305 | ||
1306 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, | |
1307 | bonding_show_packets_per_slave, | |
1308 | bonding_store_packets_per_slave); | |
1309 | ||
b76cdba9 | 1310 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1311 | &dev_attr_slaves.attr, |
1312 | &dev_attr_mode.attr, | |
dd957c57 | 1313 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1314 | &dev_attr_arp_validate.attr, |
8599b52e | 1315 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1316 | &dev_attr_arp_interval.attr, |
1317 | &dev_attr_arp_ip_target.attr, | |
1318 | &dev_attr_downdelay.attr, | |
1319 | &dev_attr_updelay.attr, | |
1320 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1321 | &dev_attr_ad_select.attr, |
43cb76d9 | 1322 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1323 | &dev_attr_num_grat_arp.attr, |
1324 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1325 | &dev_attr_miimon.attr, |
1326 | &dev_attr_primary.attr, | |
a549952a | 1327 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1328 | &dev_attr_use_carrier.attr, |
1329 | &dev_attr_active_slave.attr, | |
1330 | &dev_attr_mii_status.attr, | |
1331 | &dev_attr_ad_aggregator.attr, | |
1332 | &dev_attr_ad_num_ports.attr, | |
1333 | &dev_attr_ad_actor_key.attr, | |
1334 | &dev_attr_ad_partner_key.attr, | |
1335 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1336 | &dev_attr_queue_id.attr, |
ebd8e497 | 1337 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1338 | &dev_attr_resend_igmp.attr, |
655f8919 | 1339 | &dev_attr_min_links.attr, |
7eacd038 | 1340 | &dev_attr_lp_interval.attr, |
73958329 | 1341 | &dev_attr_packets_per_slave.attr, |
b76cdba9 MW |
1342 | NULL, |
1343 | }; | |
1344 | ||
1345 | static struct attribute_group bonding_group = { | |
1346 | .name = "bonding", | |
1347 | .attrs = per_bond_attrs, | |
1348 | }; | |
1349 | ||
1350 | /* | |
1351 | * Initialize sysfs. This sets up the bonding_masters file in | |
1352 | * /sys/class/net. | |
1353 | */ | |
4c22400a | 1354 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1355 | { |
b8a9787e | 1356 | int ret; |
b76cdba9 | 1357 | |
4c22400a | 1358 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1359 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 1360 | |
58292cbe TH |
1361 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
1362 | bn->net); | |
877cbd36 JV |
1363 | /* |
1364 | * Permit multiple loads of the module by ignoring failures to | |
1365 | * create the bonding_masters sysfs file. Bonding devices | |
1366 | * created by second or subsequent loads of the module will | |
1367 | * not be listed in, or controllable by, bonding_masters, but | |
1368 | * will have the usual "bonding" sysfs directory. | |
1369 | * | |
1370 | * This is done to preserve backwards compatibility for | |
1371 | * initscripts/sysconfig, which load bonding multiple times to | |
1372 | * configure multiple bonding devices. | |
1373 | */ | |
1374 | if (ret == -EEXIST) { | |
38d2f38b | 1375 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1376 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1377 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1378 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1379 | class_attr_bonding_masters.attr.name); |
130aa61a | 1380 | ret = 0; |
877cbd36 | 1381 | } |
b76cdba9 MW |
1382 | |
1383 | return ret; | |
1384 | ||
1385 | } | |
1386 | ||
1387 | /* | |
1388 | * Remove /sys/class/net/bonding_masters. | |
1389 | */ | |
4c22400a | 1390 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1391 | { |
58292cbe | 1392 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
1393 | } |
1394 | ||
1395 | /* | |
1396 | * Initialize sysfs for each bond. This sets up and registers | |
1397 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1398 | */ | |
6151b3d4 | 1399 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1400 | { |
6151b3d4 | 1401 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1402 | } |
1403 |