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 | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
b76cdba9 | 21 | */ |
a4aee5c8 JP |
22 | |
23 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
24 | ||
b76cdba9 MW |
25 | #include <linux/kernel.h> |
26 | #include <linux/module.h> | |
b76cdba9 | 27 | #include <linux/device.h> |
d43c36dc | 28 | #include <linux/sched.h> |
b76cdba9 MW |
29 | #include <linux/fs.h> |
30 | #include <linux/types.h> | |
31 | #include <linux/string.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/inetdevice.h> | |
34 | #include <linux/in.h> | |
35 | #include <linux/sysfs.h> | |
b76cdba9 MW |
36 | #include <linux/ctype.h> |
37 | #include <linux/inet.h> | |
38 | #include <linux/rtnetlink.h> | |
5c5129b5 | 39 | #include <linux/etherdevice.h> |
881d966b | 40 | #include <net/net_namespace.h> |
ec87fd3b EB |
41 | #include <net/netns/generic.h> |
42 | #include <linux/nsproxy.h> | |
b76cdba9 | 43 | |
b76cdba9 | 44 | #include "bonding.h" |
5a03cdb7 | 45 | |
3d632c3f | 46 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 47 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 48 | |
b76cdba9 MW |
49 | /* |
50 | * "show" function for the bond_masters attribute. | |
51 | * The class parameter is ignored. | |
52 | */ | |
28812fe1 AK |
53 | static ssize_t bonding_show_bonds(struct class *cls, |
54 | struct class_attribute *attr, | |
55 | char *buf) | |
b76cdba9 | 56 | { |
4c22400a EB |
57 | struct bond_net *bn = |
58 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
59 | int res = 0; |
60 | struct bonding *bond; | |
61 | ||
7e083840 | 62 | rtnl_lock(); |
b76cdba9 | 63 | |
ec87fd3b | 64 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
65 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
66 | /* not enough space for another interface name */ | |
67 | if ((PAGE_SIZE - res) > 10) | |
68 | res = PAGE_SIZE - 10; | |
b8843665 | 69 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
70 | break; |
71 | } | |
b8843665 | 72 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 73 | } |
1dcdcd69 WF |
74 | if (res) |
75 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
76 | |
77 | rtnl_unlock(); | |
b76cdba9 MW |
78 | return res; |
79 | } | |
80 | ||
4c22400a | 81 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
82 | { |
83 | struct bonding *bond; | |
84 | ||
ec87fd3b | 85 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
86 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
87 | return bond->dev; | |
88 | } | |
89 | return NULL; | |
90 | } | |
91 | ||
b76cdba9 MW |
92 | /* |
93 | * "store" function for the bond_masters attribute. This is what | |
94 | * creates and deletes entire bonds. | |
95 | * | |
96 | * The class parameter is ignored. | |
97 | * | |
98 | */ | |
99 | ||
3d632c3f | 100 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 101 | struct class_attribute *attr, |
3d632c3f | 102 | const char *buffer, size_t count) |
b76cdba9 | 103 | { |
4c22400a EB |
104 | struct bond_net *bn = |
105 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
106 | char command[IFNAMSIZ + 1] = {0, }; |
107 | char *ifname; | |
027ea041 | 108 | int rv, res = count; |
b76cdba9 | 109 | |
b76cdba9 MW |
110 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
111 | ifname = command + 1; | |
112 | if ((strlen(command) <= 1) || | |
113 | !dev_valid_name(ifname)) | |
114 | goto err_no_cmd; | |
115 | ||
116 | if (command[0] == '+') { | |
a4aee5c8 | 117 | pr_info("%s is being created...\n", ifname); |
4c22400a | 118 | rv = bond_create(bn->net, ifname); |
027ea041 | 119 | if (rv) { |
5f86cad1 PO |
120 | if (rv == -EEXIST) |
121 | pr_info("%s already exists.\n", ifname); | |
122 | else | |
123 | pr_info("%s creation failed.\n", ifname); | |
027ea041 | 124 | res = rv; |
b76cdba9 | 125 | } |
373500db SH |
126 | } else if (command[0] == '-') { |
127 | struct net_device *bond_dev; | |
b76cdba9 | 128 | |
027ea041 | 129 | rtnl_lock(); |
4c22400a | 130 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 131 | if (bond_dev) { |
a4aee5c8 | 132 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
133 | unregister_netdevice(bond_dev); |
134 | } else { | |
a4aee5c8 | 135 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
136 | res = -ENODEV; |
137 | } | |
138 | rtnl_unlock(); | |
139 | } else | |
140 | goto err_no_cmd; | |
027ea041 | 141 | |
373500db SH |
142 | /* Always return either count or an error. If you return 0, you'll |
143 | * get called forever, which is bad. | |
144 | */ | |
145 | return res; | |
b76cdba9 MW |
146 | |
147 | err_no_cmd: | |
a4aee5c8 | 148 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 149 | return -EPERM; |
b76cdba9 | 150 | } |
373500db | 151 | |
4c22400a EB |
152 | static const void *bonding_namespace(struct class *cls, |
153 | const struct class_attribute *attr) | |
154 | { | |
155 | const struct bond_net *bn = | |
156 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
157 | return bn->net; | |
158 | } | |
159 | ||
b76cdba9 | 160 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
161 | static const struct class_attribute class_attr_bonding_masters = { |
162 | .attr = { | |
163 | .name = "bonding_masters", | |
164 | .mode = S_IWUSR | S_IRUGO, | |
165 | }, | |
166 | .show = bonding_show_bonds, | |
167 | .store = bonding_store_bonds, | |
168 | .namespace = bonding_namespace, | |
169 | }; | |
b76cdba9 | 170 | |
b76cdba9 MW |
171 | /* |
172 | * Show the slaves in the current bond. | |
173 | */ | |
43cb76d9 GKH |
174 | static ssize_t bonding_show_slaves(struct device *d, |
175 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 176 | { |
43cb76d9 | 177 | struct bonding *bond = to_bond(d); |
9caff1e7 | 178 | struct list_head *iter; |
dec1e90e | 179 | struct slave *slave; |
180 | int res = 0; | |
b76cdba9 | 181 | |
4d1ae5fb | 182 | if (!rtnl_trylock()) |
183 | return restart_syscall(); | |
184 | ||
9caff1e7 | 185 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
186 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
187 | /* not enough space for another interface name */ | |
188 | if ((PAGE_SIZE - res) > 10) | |
189 | res = PAGE_SIZE - 10; | |
7bd46508 | 190 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
191 | break; |
192 | } | |
193 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
194 | } | |
4d1ae5fb | 195 | |
196 | rtnl_unlock(); | |
197 | ||
1dcdcd69 WF |
198 | if (res) |
199 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 200 | |
b76cdba9 MW |
201 | return res; |
202 | } | |
203 | ||
204 | /* | |
d6641ccf | 205 | * Set the slaves in the current bond. |
f9f3545e JP |
206 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
207 | * All hard work should be done there. | |
b76cdba9 | 208 | */ |
43cb76d9 GKH |
209 | static ssize_t bonding_store_slaves(struct device *d, |
210 | struct device_attribute *attr, | |
211 | const char *buffer, size_t count) | |
b76cdba9 MW |
212 | { |
213 | char command[IFNAMSIZ + 1] = { 0, }; | |
214 | char *ifname; | |
f9f3545e JP |
215 | int res, ret = count; |
216 | struct net_device *dev; | |
43cb76d9 | 217 | struct bonding *bond = to_bond(d); |
b76cdba9 | 218 | |
496a60cd EB |
219 | if (!rtnl_trylock()) |
220 | return restart_syscall(); | |
027ea041 | 221 | |
b76cdba9 MW |
222 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
223 | ifname = command + 1; | |
224 | if ((strlen(command) <= 1) || | |
225 | !dev_valid_name(ifname)) | |
226 | goto err_no_cmd; | |
227 | ||
f9f3545e JP |
228 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
229 | if (!dev) { | |
230 | pr_info("%s: Interface %s does not exist!\n", | |
231 | bond->dev->name, ifname); | |
232 | ret = -ENODEV; | |
233 | goto out; | |
234 | } | |
b76cdba9 | 235 | |
f9f3545e JP |
236 | switch (command[0]) { |
237 | case '+': | |
238 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 239 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 240 | break; |
3d632c3f | 241 | |
f9f3545e JP |
242 | case '-': |
243 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
244 | res = bond_release(bond->dev, dev); | |
245 | break; | |
b76cdba9 | 246 | |
f9f3545e JP |
247 | default: |
248 | goto err_no_cmd; | |
b76cdba9 MW |
249 | } |
250 | ||
f9f3545e JP |
251 | if (res) |
252 | ret = res; | |
253 | goto out; | |
254 | ||
b76cdba9 | 255 | err_no_cmd: |
a4aee5c8 JP |
256 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
257 | bond->dev->name); | |
b76cdba9 MW |
258 | ret = -EPERM; |
259 | ||
260 | out: | |
027ea041 | 261 | rtnl_unlock(); |
b76cdba9 MW |
262 | return ret; |
263 | } | |
264 | ||
3d632c3f SH |
265 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
266 | bonding_store_slaves); | |
b76cdba9 MW |
267 | |
268 | /* | |
269 | * Show and set the bonding mode. The bond interface must be down to | |
270 | * change the mode. | |
271 | */ | |
43cb76d9 GKH |
272 | static ssize_t bonding_show_mode(struct device *d, |
273 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 274 | { |
43cb76d9 | 275 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
276 | |
277 | return sprintf(buf, "%s %d\n", | |
278 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 279 | bond->params.mode); |
b76cdba9 MW |
280 | } |
281 | ||
43cb76d9 GKH |
282 | static ssize_t bonding_store_mode(struct device *d, |
283 | struct device_attribute *attr, | |
284 | const char *buf, size_t count) | |
b76cdba9 MW |
285 | { |
286 | int new_value, ret = count; | |
43cb76d9 | 287 | struct bonding *bond = to_bond(d); |
b76cdba9 | 288 | |
ea6836dd | 289 | if (!rtnl_trylock()) |
290 | return restart_syscall(); | |
291 | ||
b76cdba9 | 292 | if (bond->dev->flags & IFF_UP) { |
a4aee5c8 JP |
293 | pr_err("unable to update mode of %s because interface is up.\n", |
294 | bond->dev->name); | |
b76cdba9 MW |
295 | ret = -EPERM; |
296 | goto out; | |
297 | } | |
298 | ||
0965a1f3 | 299 | if (bond_has_slaves(bond)) { |
4a8bb7e2 VF |
300 | pr_err("unable to update mode of %s because it has slaves.\n", |
301 | bond->dev->name); | |
302 | ret = -EPERM; | |
303 | goto out; | |
304 | } | |
305 | ||
ece95f7f | 306 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 307 | if (new_value < 0) { |
a4aee5c8 JP |
308 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
309 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
310 | ret = -EINVAL; |
311 | goto out; | |
c5cb002f AG |
312 | } |
313 | if ((new_value == BOND_MODE_ALB || | |
314 | new_value == BOND_MODE_TLB) && | |
315 | bond->params.arp_interval) { | |
316 | pr_err("%s: %s mode is incompatible with arp monitoring.\n", | |
317 | bond->dev->name, bond_mode_tbl[new_value].modename); | |
318 | ret = -EINVAL; | |
319 | goto out; | |
320 | } | |
8f903c70 | 321 | |
5bb9e0b5 | 322 | /* don't cache arp_validate between modes */ |
323 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
c5cb002f | 324 | bond->params.mode = new_value; |
c5cb002f AG |
325 | pr_info("%s: setting mode to %s (%d).\n", |
326 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
327 | new_value); | |
b76cdba9 | 328 | out: |
ea6836dd | 329 | rtnl_unlock(); |
b76cdba9 MW |
330 | return ret; |
331 | } | |
3d632c3f SH |
332 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
333 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
334 | |
335 | /* | |
3d632c3f | 336 | * Show and set the bonding transmit hash method. |
b76cdba9 | 337 | */ |
43cb76d9 GKH |
338 | static ssize_t bonding_show_xmit_hash(struct device *d, |
339 | struct device_attribute *attr, | |
340 | char *buf) | |
b76cdba9 | 341 | { |
43cb76d9 | 342 | struct bonding *bond = to_bond(d); |
b76cdba9 | 343 | |
8e4b9329 WF |
344 | return sprintf(buf, "%s %d\n", |
345 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
346 | bond->params.xmit_policy); | |
b76cdba9 MW |
347 | } |
348 | ||
43cb76d9 GKH |
349 | static ssize_t bonding_store_xmit_hash(struct device *d, |
350 | struct device_attribute *attr, | |
351 | const char *buf, size_t count) | |
b76cdba9 MW |
352 | { |
353 | int new_value, ret = count; | |
43cb76d9 | 354 | struct bonding *bond = to_bond(d); |
b76cdba9 | 355 | |
ece95f7f | 356 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 357 | if (new_value < 0) { |
a4aee5c8 | 358 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
359 | bond->dev->name, |
360 | (int)strlen(buf) - 1, buf); | |
361 | ret = -EINVAL; | |
b76cdba9 MW |
362 | } else { |
363 | bond->params.xmit_policy = new_value; | |
a4aee5c8 | 364 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
365 | bond->dev->name, |
366 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 | 367 | } |
53edee2c | 368 | |
b76cdba9 MW |
369 | return ret; |
370 | } | |
3d632c3f SH |
371 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
372 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 373 | |
f5b2b966 JV |
374 | /* |
375 | * Show and set arp_validate. | |
376 | */ | |
43cb76d9 GKH |
377 | static ssize_t bonding_show_arp_validate(struct device *d, |
378 | struct device_attribute *attr, | |
379 | char *buf) | |
f5b2b966 | 380 | { |
43cb76d9 | 381 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
382 | |
383 | return sprintf(buf, "%s %d\n", | |
384 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 385 | bond->params.arp_validate); |
f5b2b966 JV |
386 | } |
387 | ||
43cb76d9 GKH |
388 | static ssize_t bonding_store_arp_validate(struct device *d, |
389 | struct device_attribute *attr, | |
390 | const char *buf, size_t count) | |
f5b2b966 | 391 | { |
43cb76d9 | 392 | struct bonding *bond = to_bond(d); |
5bb9e0b5 | 393 | int new_value, ret = count; |
f5b2b966 | 394 | |
5c5038dc | 395 | if (!rtnl_trylock()) |
396 | return restart_syscall(); | |
ece95f7f | 397 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 398 | if (new_value < 0) { |
a4aee5c8 | 399 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 | 400 | bond->dev->name, buf); |
5c5038dc | 401 | ret = -EINVAL; |
402 | goto out; | |
f5b2b966 | 403 | } |
5bb9e0b5 | 404 | if (bond->params.mode != BOND_MODE_ACTIVEBACKUP) { |
a4aee5c8 | 405 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 | 406 | bond->dev->name); |
5c5038dc | 407 | ret = -EINVAL; |
408 | goto out; | |
f5b2b966 | 409 | } |
a4aee5c8 JP |
410 | pr_info("%s: setting arp_validate to %s (%d).\n", |
411 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
412 | new_value); | |
f5b2b966 | 413 | |
5bb9e0b5 | 414 | if (bond->dev->flags & IFF_UP) { |
415 | if (!new_value) | |
416 | bond->recv_probe = NULL; | |
417 | else if (bond->params.arp_interval) | |
418 | bond->recv_probe = bond_arp_rcv; | |
419 | } | |
f5b2b966 | 420 | bond->params.arp_validate = new_value; |
5c5038dc | 421 | out: |
422 | rtnl_unlock(); | |
f5b2b966 | 423 | |
5c5038dc | 424 | return ret; |
f5b2b966 JV |
425 | } |
426 | ||
3d632c3f SH |
427 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
428 | bonding_store_arp_validate); | |
8599b52e VF |
429 | /* |
430 | * Show and set arp_all_targets. | |
431 | */ | |
432 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
433 | struct device_attribute *attr, | |
434 | char *buf) | |
435 | { | |
436 | struct bonding *bond = to_bond(d); | |
437 | int value = bond->params.arp_all_targets; | |
438 | ||
439 | return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename, | |
440 | value); | |
441 | } | |
442 | ||
443 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
444 | struct device_attribute *attr, | |
445 | const char *buf, size_t count) | |
446 | { | |
447 | struct bonding *bond = to_bond(d); | |
448 | int new_value; | |
449 | ||
450 | new_value = bond_parse_parm(buf, arp_all_targets_tbl); | |
451 | if (new_value < 0) { | |
452 | pr_err("%s: Ignoring invalid arp_all_targets value %s\n", | |
453 | bond->dev->name, buf); | |
454 | return -EINVAL; | |
455 | } | |
456 | pr_info("%s: setting arp_all_targets to %s (%d).\n", | |
457 | bond->dev->name, arp_all_targets_tbl[new_value].modename, | |
458 | new_value); | |
459 | ||
460 | bond->params.arp_all_targets = new_value; | |
461 | ||
462 | return count; | |
463 | } | |
464 | ||
465 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
466 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 467 | |
dd957c57 JV |
468 | /* |
469 | * Show and store fail_over_mac. User only allowed to change the | |
470 | * value when there are no slaves. | |
471 | */ | |
3d632c3f SH |
472 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
473 | struct device_attribute *attr, | |
474 | char *buf) | |
dd957c57 JV |
475 | { |
476 | struct bonding *bond = to_bond(d); | |
477 | ||
3915c1e8 JV |
478 | return sprintf(buf, "%s %d\n", |
479 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
480 | bond->params.fail_over_mac); | |
dd957c57 JV |
481 | } |
482 | ||
3d632c3f SH |
483 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
484 | struct device_attribute *attr, | |
485 | const char *buf, size_t count) | |
dd957c57 | 486 | { |
9402b746 | 487 | int new_value, ret = count; |
dd957c57 JV |
488 | struct bonding *bond = to_bond(d); |
489 | ||
9402b746 | 490 | if (!rtnl_trylock()) |
491 | return restart_syscall(); | |
492 | ||
0965a1f3 | 493 | if (bond_has_slaves(bond)) { |
a4aee5c8 | 494 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 495 | bond->dev->name); |
9402b746 | 496 | ret = -EPERM; |
497 | goto out; | |
dd957c57 JV |
498 | } |
499 | ||
3915c1e8 JV |
500 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
501 | if (new_value < 0) { | |
a4aee5c8 | 502 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 | 503 | bond->dev->name, buf); |
9402b746 | 504 | ret = -EINVAL; |
505 | goto out; | |
dd957c57 JV |
506 | } |
507 | ||
3915c1e8 | 508 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
509 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
510 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
511 | new_value); | |
3915c1e8 | 512 | |
9402b746 | 513 | out: |
514 | rtnl_unlock(); | |
515 | return ret; | |
dd957c57 JV |
516 | } |
517 | ||
3d632c3f SH |
518 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
519 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 520 | |
b76cdba9 MW |
521 | /* |
522 | * Show and set the arp timer interval. There are two tricky bits | |
523 | * here. First, if ARP monitoring is activated, then we must disable | |
524 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
525 | * start it. | |
526 | */ | |
43cb76d9 GKH |
527 | static ssize_t bonding_show_arp_interval(struct device *d, |
528 | struct device_attribute *attr, | |
529 | char *buf) | |
b76cdba9 | 530 | { |
43cb76d9 | 531 | struct bonding *bond = to_bond(d); |
b76cdba9 | 532 | |
7bd46508 | 533 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
534 | } |
535 | ||
43cb76d9 GKH |
536 | static ssize_t bonding_store_arp_interval(struct device *d, |
537 | struct device_attribute *attr, | |
538 | const char *buf, size_t count) | |
b76cdba9 | 539 | { |
43cb76d9 | 540 | struct bonding *bond = to_bond(d); |
5bb9e0b5 | 541 | int new_value, ret = count; |
b76cdba9 | 542 | |
fbb0c41b | 543 | if (!rtnl_trylock()) |
544 | return restart_syscall(); | |
b76cdba9 | 545 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 546 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
547 | bond->dev->name); |
548 | ret = -EINVAL; | |
549 | goto out; | |
550 | } | |
551 | if (new_value < 0) { | |
1bc7db16 | 552 | pr_err("%s: Invalid arp_interval value %d not in range 0-%d; rejected.\n", |
b76cdba9 MW |
553 | bond->dev->name, new_value, INT_MAX); |
554 | ret = -EINVAL; | |
555 | goto out; | |
556 | } | |
c5cb002f AG |
557 | if (bond->params.mode == BOND_MODE_ALB || |
558 | bond->params.mode == BOND_MODE_TLB) { | |
559 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", | |
560 | bond->dev->name, bond->dev->name); | |
561 | ret = -EINVAL; | |
562 | goto out; | |
563 | } | |
a4aee5c8 JP |
564 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
565 | bond->dev->name, new_value); | |
b76cdba9 | 566 | bond->params.arp_interval = new_value; |
1bc7db16 | 567 | if (new_value) { |
568 | if (bond->params.miimon) { | |
569 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
570 | bond->dev->name, bond->dev->name); | |
571 | bond->params.miimon = 0; | |
572 | } | |
573 | if (!bond->params.arp_targets[0]) | |
574 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
575 | bond->dev->name); | |
b76cdba9 MW |
576 | } |
577 | if (bond->dev->flags & IFF_UP) { | |
578 | /* If the interface is up, we may need to fire off | |
579 | * the ARP timer. If the interface is down, the | |
580 | * timer will get fired off when the open function | |
581 | * is called. | |
582 | */ | |
1bc7db16 | 583 | if (!new_value) { |
5bb9e0b5 | 584 | if (bond->params.arp_validate) |
585 | bond->recv_probe = NULL; | |
1bc7db16 | 586 | cancel_delayed_work_sync(&bond->arp_work); |
587 | } else { | |
5bb9e0b5 | 588 | /* arp_validate can be set only in active-backup mode */ |
589 | if (bond->params.arp_validate) | |
590 | bond->recv_probe = bond_arp_rcv; | |
1bc7db16 | 591 | cancel_delayed_work_sync(&bond->mii_work); |
592 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
593 | } | |
b76cdba9 | 594 | } |
b76cdba9 | 595 | out: |
fbb0c41b | 596 | rtnl_unlock(); |
b76cdba9 MW |
597 | return ret; |
598 | } | |
3d632c3f SH |
599 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
600 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
601 | |
602 | /* | |
603 | * Show and set the arp targets. | |
604 | */ | |
43cb76d9 GKH |
605 | static ssize_t bonding_show_arp_targets(struct device *d, |
606 | struct device_attribute *attr, | |
607 | char *buf) | |
b76cdba9 MW |
608 | { |
609 | int i, res = 0; | |
43cb76d9 | 610 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
611 | |
612 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
613 | if (bond->params.arp_targets[i]) | |
63779436 HH |
614 | res += sprintf(buf + res, "%pI4 ", |
615 | &bond->params.arp_targets[i]); | |
b76cdba9 | 616 | } |
1dcdcd69 WF |
617 | if (res) |
618 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
619 | return res; |
620 | } | |
621 | ||
43cb76d9 GKH |
622 | static ssize_t bonding_store_arp_targets(struct device *d, |
623 | struct device_attribute *attr, | |
624 | const char *buf, size_t count) | |
b76cdba9 | 625 | { |
43cb76d9 | 626 | struct bonding *bond = to_bond(d); |
9caff1e7 | 627 | struct list_head *iter; |
8599b52e VF |
628 | struct slave *slave; |
629 | __be32 newtarget, *targets; | |
630 | unsigned long *targets_rx; | |
631 | int ind, i, j, ret = -EINVAL; | |
b76cdba9 | 632 | |
4d1ae5fb | 633 | if (!rtnl_trylock()) |
634 | return restart_syscall(); | |
635 | ||
b76cdba9 MW |
636 | targets = bond->params.arp_targets; |
637 | newtarget = in_aton(buf + 1); | |
638 | /* look for adds */ | |
639 | if (buf[0] == '+') { | |
d3bb52b0 | 640 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 641 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 642 | bond->dev->name, &newtarget); |
b76cdba9 MW |
643 | goto out; |
644 | } | |
87a7b84b VF |
645 | |
646 | if (bond_get_targets_ip(targets, newtarget) != -1) { /* dup */ | |
647 | pr_err("%s: ARP target %pI4 is already present\n", | |
648 | bond->dev->name, &newtarget); | |
649 | goto out; | |
b76cdba9 | 650 | } |
87a7b84b | 651 | |
8599b52e VF |
652 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ |
653 | if (ind == -1) { | |
a4aee5c8 | 654 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 | 655 | bond->dev->name); |
b76cdba9 MW |
656 | goto out; |
657 | } | |
658 | ||
87a7b84b VF |
659 | pr_info("%s: adding ARP target %pI4.\n", bond->dev->name, |
660 | &newtarget); | |
8599b52e VF |
661 | /* not to race with bond_arp_rcv */ |
662 | write_lock_bh(&bond->lock); | |
9caff1e7 | 663 | bond_for_each_slave(bond, slave, iter) |
8599b52e VF |
664 | slave->target_last_arp_rx[ind] = jiffies; |
665 | targets[ind] = newtarget; | |
666 | write_unlock_bh(&bond->lock); | |
3d632c3f | 667 | } else if (buf[0] == '-') { |
d3bb52b0 | 668 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 669 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 670 | bond->dev->name, &newtarget); |
b76cdba9 MW |
671 | goto out; |
672 | } | |
673 | ||
8599b52e VF |
674 | ind = bond_get_targets_ip(targets, newtarget); |
675 | if (ind == -1) { | |
676 | pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", | |
a4aee5c8 | 677 | bond->dev->name, &newtarget); |
b76cdba9 MW |
678 | goto out; |
679 | } | |
87a7b84b | 680 | |
8599b52e VF |
681 | if (ind == 0 && !targets[1] && bond->params.arp_interval) |
682 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
683 | bond->dev->name); | |
684 | ||
87a7b84b VF |
685 | pr_info("%s: removing ARP target %pI4.\n", bond->dev->name, |
686 | &newtarget); | |
8599b52e VF |
687 | |
688 | write_lock_bh(&bond->lock); | |
9caff1e7 | 689 | bond_for_each_slave(bond, slave, iter) { |
8599b52e VF |
690 | targets_rx = slave->target_last_arp_rx; |
691 | j = ind; | |
692 | for (; (j < BOND_MAX_ARP_TARGETS-1) && targets[j+1]; j++) | |
693 | targets_rx[j] = targets_rx[j+1]; | |
694 | targets_rx[j] = 0; | |
695 | } | |
696 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
87a7b84b VF |
697 | targets[i] = targets[i+1]; |
698 | targets[i] = 0; | |
8599b52e | 699 | write_unlock_bh(&bond->lock); |
3d632c3f | 700 | } else { |
a4aee5c8 JP |
701 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
702 | bond->dev->name); | |
b76cdba9 MW |
703 | ret = -EPERM; |
704 | goto out; | |
705 | } | |
706 | ||
87a7b84b | 707 | ret = count; |
b76cdba9 | 708 | out: |
4d1ae5fb | 709 | rtnl_unlock(); |
b76cdba9 MW |
710 | return ret; |
711 | } | |
43cb76d9 | 712 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
713 | |
714 | /* | |
715 | * Show and set the up and down delays. These must be multiples of the | |
716 | * MII monitoring value, and are stored internally as the multiplier. | |
717 | * Thus, we must translate to MS for the real world. | |
718 | */ | |
43cb76d9 GKH |
719 | static ssize_t bonding_show_downdelay(struct device *d, |
720 | struct device_attribute *attr, | |
721 | char *buf) | |
b76cdba9 | 722 | { |
43cb76d9 | 723 | struct bonding *bond = to_bond(d); |
b76cdba9 | 724 | |
7bd46508 | 725 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
726 | } |
727 | ||
43cb76d9 GKH |
728 | static ssize_t bonding_store_downdelay(struct device *d, |
729 | struct device_attribute *attr, | |
730 | const char *buf, size_t count) | |
b76cdba9 MW |
731 | { |
732 | int new_value, ret = count; | |
43cb76d9 | 733 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
734 | |
735 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 736 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
737 | bond->dev->name); |
738 | ret = -EPERM; | |
739 | goto out; | |
740 | } | |
741 | ||
742 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 743 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
744 | ret = -EINVAL; |
745 | goto out; | |
746 | } | |
747 | if (new_value < 0) { | |
a4aee5c8 | 748 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 749 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
750 | ret = -EINVAL; |
751 | goto out; | |
752 | } else { | |
753 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 754 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
755 | bond->dev->name, new_value, |
756 | bond->params.miimon, | |
757 | (new_value / bond->params.miimon) * | |
758 | bond->params.miimon); | |
b76cdba9 MW |
759 | } |
760 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
761 | pr_info("%s: Setting down delay to %d.\n", |
762 | bond->dev->name, | |
763 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
764 | |
765 | } | |
766 | ||
767 | out: | |
768 | return ret; | |
769 | } | |
3d632c3f SH |
770 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
771 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 772 | |
43cb76d9 GKH |
773 | static ssize_t bonding_show_updelay(struct device *d, |
774 | struct device_attribute *attr, | |
775 | char *buf) | |
b76cdba9 | 776 | { |
43cb76d9 | 777 | struct bonding *bond = to_bond(d); |
b76cdba9 | 778 | |
7bd46508 | 779 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
780 | |
781 | } | |
782 | ||
43cb76d9 GKH |
783 | static ssize_t bonding_store_updelay(struct device *d, |
784 | struct device_attribute *attr, | |
785 | const char *buf, size_t count) | |
b76cdba9 MW |
786 | { |
787 | int new_value, ret = count; | |
43cb76d9 | 788 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
789 | |
790 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 791 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
792 | bond->dev->name); |
793 | ret = -EPERM; | |
794 | goto out; | |
795 | } | |
796 | ||
797 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 798 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
799 | bond->dev->name); |
800 | ret = -EINVAL; | |
801 | goto out; | |
802 | } | |
803 | if (new_value < 0) { | |
1bc7db16 | 804 | pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n", |
805 | bond->dev->name, new_value, 0, INT_MAX); | |
b76cdba9 MW |
806 | ret = -EINVAL; |
807 | goto out; | |
808 | } else { | |
809 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 810 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
811 | bond->dev->name, new_value, |
812 | bond->params.miimon, | |
813 | (new_value / bond->params.miimon) * | |
814 | bond->params.miimon); | |
b76cdba9 MW |
815 | } |
816 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
817 | pr_info("%s: Setting up delay to %d.\n", |
818 | bond->dev->name, | |
819 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
820 | } |
821 | ||
822 | out: | |
823 | return ret; | |
824 | } | |
3d632c3f SH |
825 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
826 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
827 | |
828 | /* | |
829 | * Show and set the LACP interval. Interface must be down, and the mode | |
830 | * must be set to 802.3ad mode. | |
831 | */ | |
43cb76d9 GKH |
832 | static ssize_t bonding_show_lacp(struct device *d, |
833 | struct device_attribute *attr, | |
834 | char *buf) | |
b76cdba9 | 835 | { |
43cb76d9 | 836 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
837 | |
838 | return sprintf(buf, "%s %d\n", | |
839 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 840 | bond->params.lacp_fast); |
b76cdba9 MW |
841 | } |
842 | ||
43cb76d9 GKH |
843 | static ssize_t bonding_store_lacp(struct device *d, |
844 | struct device_attribute *attr, | |
845 | const char *buf, size_t count) | |
b76cdba9 | 846 | { |
43cb76d9 | 847 | struct bonding *bond = to_bond(d); |
c509316b | 848 | int new_value, ret = count; |
849 | ||
850 | if (!rtnl_trylock()) | |
851 | return restart_syscall(); | |
b76cdba9 MW |
852 | |
853 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 854 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
855 | bond->dev->name); |
856 | ret = -EPERM; | |
857 | goto out; | |
858 | } | |
859 | ||
860 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 861 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
862 | bond->dev->name); |
863 | ret = -EPERM; | |
864 | goto out; | |
865 | } | |
866 | ||
ece95f7f | 867 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
868 | |
869 | if ((new_value == 1) || (new_value == 0)) { | |
870 | bond->params.lacp_fast = new_value; | |
ba824a8b | 871 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 872 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
873 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
874 | new_value); | |
b76cdba9 | 875 | } else { |
a4aee5c8 | 876 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 877 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
878 | ret = -EINVAL; |
879 | } | |
880 | out: | |
c509316b | 881 | rtnl_unlock(); |
882 | ||
b76cdba9 MW |
883 | return ret; |
884 | } | |
3d632c3f SH |
885 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
886 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 887 | |
655f8919 | 888 | static ssize_t bonding_show_min_links(struct device *d, |
889 | struct device_attribute *attr, | |
890 | char *buf) | |
891 | { | |
892 | struct bonding *bond = to_bond(d); | |
893 | ||
894 | return sprintf(buf, "%d\n", bond->params.min_links); | |
895 | } | |
896 | ||
897 | static ssize_t bonding_store_min_links(struct device *d, | |
898 | struct device_attribute *attr, | |
899 | const char *buf, size_t count) | |
900 | { | |
901 | struct bonding *bond = to_bond(d); | |
902 | int ret; | |
903 | unsigned int new_value; | |
904 | ||
905 | ret = kstrtouint(buf, 0, &new_value); | |
906 | if (ret < 0) { | |
907 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
908 | bond->dev->name, buf); | |
909 | return ret; | |
910 | } | |
911 | ||
912 | pr_info("%s: Setting min links value to %u\n", | |
913 | bond->dev->name, new_value); | |
914 | bond->params.min_links = new_value; | |
915 | return count; | |
916 | } | |
917 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
918 | bonding_show_min_links, bonding_store_min_links); | |
919 | ||
fd989c83 JV |
920 | static ssize_t bonding_show_ad_select(struct device *d, |
921 | struct device_attribute *attr, | |
922 | char *buf) | |
923 | { | |
924 | struct bonding *bond = to_bond(d); | |
925 | ||
926 | return sprintf(buf, "%s %d\n", | |
927 | ad_select_tbl[bond->params.ad_select].modename, | |
928 | bond->params.ad_select); | |
929 | } | |
930 | ||
931 | ||
932 | static ssize_t bonding_store_ad_select(struct device *d, | |
933 | struct device_attribute *attr, | |
934 | const char *buf, size_t count) | |
935 | { | |
936 | int new_value, ret = count; | |
937 | struct bonding *bond = to_bond(d); | |
938 | ||
939 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
940 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
941 | bond->dev->name); | |
fd989c83 JV |
942 | ret = -EPERM; |
943 | goto out; | |
944 | } | |
945 | ||
946 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
947 | ||
948 | if (new_value != -1) { | |
949 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
950 | pr_info("%s: Setting ad_select to %s (%d).\n", |
951 | bond->dev->name, ad_select_tbl[new_value].modename, | |
952 | new_value); | |
fd989c83 | 953 | } else { |
a4aee5c8 | 954 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
955 | bond->dev->name, (int)strlen(buf) - 1, buf); |
956 | ret = -EINVAL; | |
957 | } | |
958 | out: | |
959 | return ret; | |
960 | } | |
3d632c3f SH |
961 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
962 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 963 | |
ad246c99 BH |
964 | /* |
965 | * Show and set the number of peer notifications to send after a failover event. | |
966 | */ | |
967 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
968 | struct device_attribute *attr, | |
969 | char *buf) | |
970 | { | |
971 | struct bonding *bond = to_bond(d); | |
972 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
973 | } | |
974 | ||
975 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
976 | struct device_attribute *attr, | |
977 | const char *buf, size_t count) | |
978 | { | |
979 | struct bonding *bond = to_bond(d); | |
980 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
981 | return err ? err : count; | |
982 | } | |
983 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
984 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
985 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
986 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
987 | ||
b76cdba9 MW |
988 | /* |
989 | * Show and set the MII monitor interval. There are two tricky bits | |
990 | * here. First, if MII monitoring is activated, then we must disable | |
991 | * ARP monitoring. Second, if the timer isn't running, we must | |
992 | * start it. | |
993 | */ | |
43cb76d9 GKH |
994 | static ssize_t bonding_show_miimon(struct device *d, |
995 | struct device_attribute *attr, | |
996 | char *buf) | |
b76cdba9 | 997 | { |
43cb76d9 | 998 | struct bonding *bond = to_bond(d); |
b76cdba9 | 999 | |
7bd46508 | 1000 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
1001 | } |
1002 | ||
43cb76d9 GKH |
1003 | static ssize_t bonding_store_miimon(struct device *d, |
1004 | struct device_attribute *attr, | |
1005 | const char *buf, size_t count) | |
b76cdba9 MW |
1006 | { |
1007 | int new_value, ret = count; | |
43cb76d9 | 1008 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1009 | |
fbb0c41b | 1010 | if (!rtnl_trylock()) |
1011 | return restart_syscall(); | |
b76cdba9 | 1012 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 1013 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
1014 | bond->dev->name); |
1015 | ret = -EINVAL; | |
1016 | goto out; | |
1017 | } | |
1018 | if (new_value < 0) { | |
a4aee5c8 | 1019 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 1020 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
1021 | ret = -EINVAL; |
1022 | goto out; | |
1bc7db16 | 1023 | } |
1024 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
1025 | bond->dev->name, new_value); | |
1026 | bond->params.miimon = new_value; | |
1027 | if (bond->params.updelay) | |
1028 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
1029 | bond->dev->name, | |
1030 | bond->params.updelay * bond->params.miimon); | |
1031 | if (bond->params.downdelay) | |
1032 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
1033 | bond->dev->name, | |
1034 | bond->params.downdelay * bond->params.miimon); | |
1035 | if (new_value && bond->params.arp_interval) { | |
1036 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", | |
1037 | bond->dev->name); | |
1038 | bond->params.arp_interval = 0; | |
1039 | if (bond->params.arp_validate) | |
1040 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
1041 | } | |
1042 | if (bond->dev->flags & IFF_UP) { | |
1043 | /* If the interface is up, we may need to fire off | |
1044 | * the MII timer. If the interface is down, the | |
1045 | * timer will get fired off when the open function | |
1046 | * is called. | |
1047 | */ | |
1048 | if (!new_value) { | |
1049 | cancel_delayed_work_sync(&bond->mii_work); | |
1050 | } else { | |
fbb0c41b | 1051 | cancel_delayed_work_sync(&bond->arp_work); |
1052 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
b76cdba9 MW |
1053 | } |
1054 | } | |
1055 | out: | |
fbb0c41b | 1056 | rtnl_unlock(); |
b76cdba9 MW |
1057 | return ret; |
1058 | } | |
3d632c3f SH |
1059 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1060 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1061 | |
1062 | /* | |
1063 | * Show and set the primary slave. The store function is much | |
1064 | * simpler than bonding_store_slaves function because it only needs to | |
1065 | * handle one interface name. | |
1066 | * The bond must be a mode that supports a primary for this be | |
1067 | * set. | |
1068 | */ | |
43cb76d9 GKH |
1069 | static ssize_t bonding_show_primary(struct device *d, |
1070 | struct device_attribute *attr, | |
1071 | char *buf) | |
b76cdba9 MW |
1072 | { |
1073 | int count = 0; | |
43cb76d9 | 1074 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1075 | |
1076 | if (bond->primary_slave) | |
7bd46508 | 1077 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1078 | |
1079 | return count; | |
1080 | } | |
1081 | ||
43cb76d9 GKH |
1082 | static ssize_t bonding_store_primary(struct device *d, |
1083 | struct device_attribute *attr, | |
1084 | const char *buf, size_t count) | |
b76cdba9 | 1085 | { |
43cb76d9 | 1086 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1087 | struct list_head *iter; |
f4bb2e9c | 1088 | char ifname[IFNAMSIZ]; |
dec1e90e | 1089 | struct slave *slave; |
b76cdba9 | 1090 | |
496a60cd EB |
1091 | if (!rtnl_trylock()) |
1092 | return restart_syscall(); | |
e843fa50 | 1093 | block_netpoll_tx(); |
e934dd78 JV |
1094 | read_lock(&bond->lock); |
1095 | write_lock_bh(&bond->curr_slave_lock); | |
1096 | ||
b76cdba9 | 1097 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1098 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1099 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1100 | goto out; |
1101 | } | |
b76cdba9 | 1102 | |
eb6e98a1 | 1103 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1104 | |
f4bb2e9c AG |
1105 | /* check to see if we are clearing primary */ |
1106 | if (!strlen(ifname) || buf[0] == '\n') { | |
1107 | pr_info("%s: Setting primary slave to None.\n", | |
1108 | bond->dev->name); | |
1109 | bond->primary_slave = NULL; | |
eb492f74 | 1110 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
f4bb2e9c AG |
1111 | bond_select_active_slave(bond); |
1112 | goto out; | |
1113 | } | |
1114 | ||
9caff1e7 | 1115 | bond_for_each_slave(bond, slave, iter) { |
f4bb2e9c AG |
1116 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
1117 | pr_info("%s: Setting %s as primary slave.\n", | |
1118 | bond->dev->name, slave->dev->name); | |
1119 | bond->primary_slave = slave; | |
1120 | strcpy(bond->params.primary, slave->dev->name); | |
1121 | bond_select_active_slave(bond); | |
1122 | goto out; | |
b76cdba9 MW |
1123 | } |
1124 | } | |
f4bb2e9c | 1125 | |
8a93664d WP |
1126 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1127 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1128 | ||
1129 | pr_info("%s: Recording %s as primary, " | |
1130 | "but it has not been enslaved to %s yet.\n", | |
1131 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1132 | out: |
e934dd78 JV |
1133 | write_unlock_bh(&bond->curr_slave_lock); |
1134 | read_unlock(&bond->lock); | |
e843fa50 | 1135 | unblock_netpoll_tx(); |
6603a6f2 JV |
1136 | rtnl_unlock(); |
1137 | ||
b76cdba9 MW |
1138 | return count; |
1139 | } | |
3d632c3f SH |
1140 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1141 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1142 | |
a549952a JP |
1143 | /* |
1144 | * Show and set the primary_reselect flag. | |
1145 | */ | |
1146 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1147 | struct device_attribute *attr, | |
1148 | char *buf) | |
1149 | { | |
1150 | struct bonding *bond = to_bond(d); | |
1151 | ||
1152 | return sprintf(buf, "%s %d\n", | |
1153 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1154 | bond->params.primary_reselect); | |
1155 | } | |
1156 | ||
1157 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1158 | struct device_attribute *attr, | |
1159 | const char *buf, size_t count) | |
1160 | { | |
1161 | int new_value, ret = count; | |
1162 | struct bonding *bond = to_bond(d); | |
1163 | ||
1164 | if (!rtnl_trylock()) | |
1165 | return restart_syscall(); | |
1166 | ||
1167 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1168 | if (new_value < 0) { | |
a4aee5c8 | 1169 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1170 | bond->dev->name, |
1171 | (int) strlen(buf) - 1, buf); | |
1172 | ret = -EINVAL; | |
1173 | goto out; | |
1174 | } | |
1175 | ||
1176 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1177 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1178 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1179 | new_value); | |
1180 | ||
e843fa50 | 1181 | block_netpoll_tx(); |
a549952a JP |
1182 | read_lock(&bond->lock); |
1183 | write_lock_bh(&bond->curr_slave_lock); | |
1184 | bond_select_active_slave(bond); | |
1185 | write_unlock_bh(&bond->curr_slave_lock); | |
1186 | read_unlock(&bond->lock); | |
e843fa50 | 1187 | unblock_netpoll_tx(); |
a549952a JP |
1188 | out: |
1189 | rtnl_unlock(); | |
1190 | return ret; | |
1191 | } | |
1192 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1193 | bonding_show_primary_reselect, | |
1194 | bonding_store_primary_reselect); | |
1195 | ||
b76cdba9 MW |
1196 | /* |
1197 | * Show and set the use_carrier flag. | |
1198 | */ | |
43cb76d9 GKH |
1199 | static ssize_t bonding_show_carrier(struct device *d, |
1200 | struct device_attribute *attr, | |
1201 | char *buf) | |
b76cdba9 | 1202 | { |
43cb76d9 | 1203 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1204 | |
7bd46508 | 1205 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1206 | } |
1207 | ||
43cb76d9 GKH |
1208 | static ssize_t bonding_store_carrier(struct device *d, |
1209 | struct device_attribute *attr, | |
1210 | const char *buf, size_t count) | |
b76cdba9 MW |
1211 | { |
1212 | int new_value, ret = count; | |
43cb76d9 | 1213 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1214 | |
1215 | ||
1216 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1217 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1218 | bond->dev->name); |
1219 | ret = -EINVAL; | |
1220 | goto out; | |
1221 | } | |
1222 | if ((new_value == 0) || (new_value == 1)) { | |
1223 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1224 | pr_info("%s: Setting use_carrier to %d.\n", |
1225 | bond->dev->name, new_value); | |
b76cdba9 | 1226 | } else { |
a4aee5c8 JP |
1227 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1228 | bond->dev->name, new_value); | |
b76cdba9 MW |
1229 | } |
1230 | out: | |
672bda33 | 1231 | return ret; |
b76cdba9 | 1232 | } |
3d632c3f SH |
1233 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1234 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1235 | |
1236 | ||
1237 | /* | |
1238 | * Show and set currently active_slave. | |
1239 | */ | |
43cb76d9 GKH |
1240 | static ssize_t bonding_show_active_slave(struct device *d, |
1241 | struct device_attribute *attr, | |
1242 | char *buf) | |
b76cdba9 | 1243 | { |
43cb76d9 | 1244 | struct bonding *bond = to_bond(d); |
278b2083 | 1245 | struct slave *curr; |
16cd0160 | 1246 | int count = 0; |
b76cdba9 | 1247 | |
278b2083 | 1248 | rcu_read_lock(); |
1249 | curr = rcu_dereference(bond->curr_active_slave); | |
b76cdba9 | 1250 | if (USES_PRIMARY(bond->params.mode) && curr) |
7bd46508 | 1251 | count = sprintf(buf, "%s\n", curr->dev->name); |
278b2083 | 1252 | rcu_read_unlock(); |
1253 | ||
b76cdba9 MW |
1254 | return count; |
1255 | } | |
1256 | ||
43cb76d9 GKH |
1257 | static ssize_t bonding_store_active_slave(struct device *d, |
1258 | struct device_attribute *attr, | |
1259 | const char *buf, size_t count) | |
b76cdba9 | 1260 | { |
dec1e90e | 1261 | struct slave *slave, *old_active, *new_active; |
43cb76d9 | 1262 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1263 | struct list_head *iter; |
f4bb2e9c | 1264 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1265 | |
496a60cd EB |
1266 | if (!rtnl_trylock()) |
1267 | return restart_syscall(); | |
e843fa50 | 1268 | |
dec1e90e | 1269 | old_active = new_active = NULL; |
e843fa50 | 1270 | block_netpoll_tx(); |
e934dd78 JV |
1271 | read_lock(&bond->lock); |
1272 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1273 | |
f4bb2e9c | 1274 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 | 1275 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f | 1276 | bond->dev->name, bond->dev->name, bond->params.mode); |
f4bb2e9c AG |
1277 | goto out; |
1278 | } | |
1279 | ||
c84e1590 | 1280 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c AG |
1281 | |
1282 | /* check to see if we are clearing active */ | |
1283 | if (!strlen(ifname) || buf[0] == '\n') { | |
1284 | pr_info("%s: Clearing current active slave.\n", | |
1285 | bond->dev->name); | |
278b2083 | 1286 | rcu_assign_pointer(bond->curr_active_slave, NULL); |
f4bb2e9c AG |
1287 | bond_select_active_slave(bond); |
1288 | goto out; | |
1289 | } | |
1290 | ||
9caff1e7 | 1291 | bond_for_each_slave(bond, slave, iter) { |
f4bb2e9c AG |
1292 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
1293 | old_active = bond->curr_active_slave; | |
1294 | new_active = slave; | |
1295 | if (new_active == old_active) { | |
1296 | /* do nothing */ | |
1297 | pr_info("%s: %s is already the current" | |
1298 | " active slave.\n", | |
1299 | bond->dev->name, | |
1300 | slave->dev->name); | |
1301 | goto out; | |
38c4916a | 1302 | } else { |
f4bb2e9c AG |
1303 | if ((new_active) && |
1304 | (old_active) && | |
1305 | (new_active->link == BOND_LINK_UP) && | |
1306 | IS_UP(new_active->dev)) { | |
1307 | pr_info("%s: Setting %s as active" | |
1308 | " slave.\n", | |
a4aee5c8 JP |
1309 | bond->dev->name, |
1310 | slave->dev->name); | |
f4bb2e9c AG |
1311 | bond_change_active_slave(bond, |
1312 | new_active); | |
38c4916a | 1313 | } else { |
f4bb2e9c AG |
1314 | pr_info("%s: Could not set %s as" |
1315 | " active slave; either %s is" | |
1316 | " down or the link is down.\n", | |
1317 | bond->dev->name, | |
1318 | slave->dev->name, | |
1319 | slave->dev->name); | |
b76cdba9 | 1320 | } |
f4bb2e9c | 1321 | goto out; |
b76cdba9 MW |
1322 | } |
1323 | } | |
b76cdba9 | 1324 | } |
f4bb2e9c AG |
1325 | |
1326 | pr_info("%s: Unable to set %.*s as active slave.\n", | |
1327 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
3d632c3f | 1328 | out: |
e934dd78 JV |
1329 | write_unlock_bh(&bond->curr_slave_lock); |
1330 | read_unlock(&bond->lock); | |
e843fa50 NH |
1331 | unblock_netpoll_tx(); |
1332 | ||
6603a6f2 JV |
1333 | rtnl_unlock(); |
1334 | ||
b76cdba9 MW |
1335 | return count; |
1336 | ||
1337 | } | |
3d632c3f SH |
1338 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1339 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1340 | |
1341 | ||
1342 | /* | |
1343 | * Show link status of the bond interface. | |
1344 | */ | |
43cb76d9 GKH |
1345 | static ssize_t bonding_show_mii_status(struct device *d, |
1346 | struct device_attribute *attr, | |
1347 | char *buf) | |
b76cdba9 | 1348 | { |
43cb76d9 | 1349 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1350 | |
278b2083 | 1351 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 1352 | } |
43cb76d9 | 1353 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1354 | |
b76cdba9 MW |
1355 | /* |
1356 | * Show current 802.3ad aggregator ID. | |
1357 | */ | |
43cb76d9 GKH |
1358 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1359 | struct device_attribute *attr, | |
1360 | char *buf) | |
b76cdba9 MW |
1361 | { |
1362 | int count = 0; | |
43cb76d9 | 1363 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1364 | |
1365 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1366 | struct ad_info ad_info; | |
3d632c3f | 1367 | count = sprintf(buf, "%d\n", |
318debd8 | 1368 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1369 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1370 | } |
b76cdba9 MW |
1371 | |
1372 | return count; | |
1373 | } | |
43cb76d9 | 1374 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1375 | |
1376 | ||
1377 | /* | |
1378 | * Show number of active 802.3ad ports. | |
1379 | */ | |
43cb76d9 GKH |
1380 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1381 | struct device_attribute *attr, | |
1382 | char *buf) | |
b76cdba9 MW |
1383 | { |
1384 | int count = 0; | |
43cb76d9 | 1385 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1386 | |
1387 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1388 | struct ad_info ad_info; | |
3d632c3f | 1389 | count = sprintf(buf, "%d\n", |
318debd8 | 1390 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1391 | ? 0 : ad_info.ports); |
b76cdba9 | 1392 | } |
b76cdba9 MW |
1393 | |
1394 | return count; | |
1395 | } | |
43cb76d9 | 1396 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1397 | |
1398 | ||
1399 | /* | |
1400 | * Show current 802.3ad actor key. | |
1401 | */ | |
43cb76d9 GKH |
1402 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1403 | struct device_attribute *attr, | |
1404 | char *buf) | |
b76cdba9 MW |
1405 | { |
1406 | int count = 0; | |
43cb76d9 | 1407 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1408 | |
1409 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1410 | struct ad_info ad_info; | |
3d632c3f | 1411 | count = sprintf(buf, "%d\n", |
318debd8 | 1412 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1413 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1414 | } |
b76cdba9 MW |
1415 | |
1416 | return count; | |
1417 | } | |
43cb76d9 | 1418 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1419 | |
1420 | ||
1421 | /* | |
1422 | * Show current 802.3ad partner key. | |
1423 | */ | |
43cb76d9 GKH |
1424 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1425 | struct device_attribute *attr, | |
1426 | char *buf) | |
b76cdba9 MW |
1427 | { |
1428 | int count = 0; | |
43cb76d9 | 1429 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1430 | |
1431 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1432 | struct ad_info ad_info; | |
3d632c3f | 1433 | count = sprintf(buf, "%d\n", |
318debd8 | 1434 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1435 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1436 | } |
b76cdba9 MW |
1437 | |
1438 | return count; | |
1439 | } | |
43cb76d9 | 1440 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1441 | |
1442 | ||
1443 | /* | |
1444 | * Show current 802.3ad partner mac. | |
1445 | */ | |
43cb76d9 GKH |
1446 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1447 | struct device_attribute *attr, | |
1448 | char *buf) | |
b76cdba9 MW |
1449 | { |
1450 | int count = 0; | |
43cb76d9 | 1451 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1452 | |
1453 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1454 | struct ad_info ad_info; | |
3d632c3f | 1455 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1456 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1457 | } |
b76cdba9 MW |
1458 | |
1459 | return count; | |
1460 | } | |
43cb76d9 | 1461 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1462 | |
bb1d9123 AG |
1463 | /* |
1464 | * Show the queue_ids of the slaves in the current bond. | |
1465 | */ | |
1466 | static ssize_t bonding_show_queue_id(struct device *d, | |
1467 | struct device_attribute *attr, | |
1468 | char *buf) | |
1469 | { | |
bb1d9123 | 1470 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1471 | struct list_head *iter; |
dec1e90e | 1472 | struct slave *slave; |
1473 | int res = 0; | |
bb1d9123 AG |
1474 | |
1475 | if (!rtnl_trylock()) | |
1476 | return restart_syscall(); | |
1477 | ||
9caff1e7 | 1478 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1479 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1480 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1481 | if ((PAGE_SIZE - res) > 10) |
1482 | res = PAGE_SIZE - 10; | |
1483 | res += sprintf(buf + res, "++more++ "); | |
1484 | break; | |
1485 | } | |
1486 | res += sprintf(buf + res, "%s:%d ", | |
1487 | slave->dev->name, slave->queue_id); | |
1488 | } | |
bb1d9123 AG |
1489 | if (res) |
1490 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1491 | |
bb1d9123 | 1492 | rtnl_unlock(); |
dec1e90e | 1493 | |
bb1d9123 AG |
1494 | return res; |
1495 | } | |
1496 | ||
1497 | /* | |
1498 | * Set the queue_ids of the slaves in the current bond. The bond | |
1499 | * interface must be enslaved for this to work. | |
1500 | */ | |
1501 | static ssize_t bonding_store_queue_id(struct device *d, | |
1502 | struct device_attribute *attr, | |
1503 | const char *buffer, size_t count) | |
1504 | { | |
1505 | struct slave *slave, *update_slave; | |
1506 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1507 | struct list_head *iter; |
bb1d9123 | 1508 | u16 qid; |
dec1e90e | 1509 | int ret = count; |
bb1d9123 AG |
1510 | char *delim; |
1511 | struct net_device *sdev = NULL; | |
1512 | ||
1513 | if (!rtnl_trylock()) | |
1514 | return restart_syscall(); | |
1515 | ||
1516 | /* delim will point to queue id if successful */ | |
1517 | delim = strchr(buffer, ':'); | |
1518 | if (!delim) | |
1519 | goto err_no_cmd; | |
1520 | ||
1521 | /* | |
1522 | * Terminate string that points to device name and bump it | |
1523 | * up one, so we can read the queue id there. | |
1524 | */ | |
1525 | *delim = '\0'; | |
1526 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1527 | goto err_no_cmd; | |
1528 | ||
1529 | /* Check buffer length, valid ifname and queue id */ | |
1530 | if (strlen(buffer) > IFNAMSIZ || | |
1531 | !dev_valid_name(buffer) || | |
8a540ff9 | 1532 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1533 | goto err_no_cmd; |
1534 | ||
1535 | /* Get the pointer to that interface if it exists */ | |
1536 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1537 | if (!sdev) | |
1538 | goto err_no_cmd; | |
1539 | ||
bb1d9123 AG |
1540 | /* Search for thes slave and check for duplicate qids */ |
1541 | update_slave = NULL; | |
9caff1e7 | 1542 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1543 | if (sdev == slave->dev) |
1544 | /* | |
1545 | * We don't need to check the matching | |
1546 | * slave for dups, since we're overwriting it | |
1547 | */ | |
1548 | update_slave = slave; | |
1549 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1550 | goto err_no_cmd; |
bb1d9123 AG |
1551 | } |
1552 | } | |
1553 | ||
1554 | if (!update_slave) | |
4d1ae5fb | 1555 | goto err_no_cmd; |
bb1d9123 AG |
1556 | |
1557 | /* Actually set the qids for the slave */ | |
1558 | update_slave->queue_id = qid; | |
1559 | ||
bb1d9123 AG |
1560 | out: |
1561 | rtnl_unlock(); | |
1562 | return ret; | |
1563 | ||
bb1d9123 AG |
1564 | err_no_cmd: |
1565 | pr_info("invalid input for queue_id set for %s.\n", | |
1566 | bond->dev->name); | |
1567 | ret = -EPERM; | |
1568 | goto out; | |
1569 | } | |
1570 | ||
1571 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1572 | bonding_store_queue_id); | |
1573 | ||
1574 | ||
ebd8e497 AG |
1575 | /* |
1576 | * Show and set the all_slaves_active flag. | |
1577 | */ | |
1578 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1579 | struct device_attribute *attr, | |
1580 | char *buf) | |
1581 | { | |
1582 | struct bonding *bond = to_bond(d); | |
1583 | ||
1584 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1585 | } | |
1586 | ||
1587 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1588 | struct device_attribute *attr, | |
1589 | const char *buf, size_t count) | |
1590 | { | |
ebd8e497 | 1591 | struct bonding *bond = to_bond(d); |
dec1e90e | 1592 | int new_value, ret = count; |
9caff1e7 | 1593 | struct list_head *iter; |
ebd8e497 AG |
1594 | struct slave *slave; |
1595 | ||
4d1ae5fb | 1596 | if (!rtnl_trylock()) |
1597 | return restart_syscall(); | |
1598 | ||
ebd8e497 AG |
1599 | if (sscanf(buf, "%d", &new_value) != 1) { |
1600 | pr_err("%s: no all_slaves_active value specified.\n", | |
1601 | bond->dev->name); | |
1602 | ret = -EINVAL; | |
1603 | goto out; | |
1604 | } | |
1605 | ||
1606 | if (new_value == bond->params.all_slaves_active) | |
1607 | goto out; | |
1608 | ||
1609 | if ((new_value == 0) || (new_value == 1)) { | |
1610 | bond->params.all_slaves_active = new_value; | |
1611 | } else { | |
1612 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1613 | bond->dev->name, new_value); | |
1614 | ret = -EINVAL; | |
1615 | goto out; | |
1616 | } | |
b76cdba9 | 1617 | |
9caff1e7 | 1618 | bond_for_each_slave(bond, slave, iter) { |
e30bc066 | 1619 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1620 | if (new_value) |
2d7011ca | 1621 | slave->inactive = 0; |
ebd8e497 | 1622 | else |
2d7011ca | 1623 | slave->inactive = 1; |
ebd8e497 AG |
1624 | } |
1625 | } | |
1626 | out: | |
4d1ae5fb | 1627 | rtnl_unlock(); |
672bda33 | 1628 | return ret; |
ebd8e497 AG |
1629 | } |
1630 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1631 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1632 | |
c2952c31 FL |
1633 | /* |
1634 | * Show and set the number of IGMP membership reports to send on link failure | |
1635 | */ | |
1636 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1637 | struct device_attribute *attr, |
1638 | char *buf) | |
c2952c31 FL |
1639 | { |
1640 | struct bonding *bond = to_bond(d); | |
1641 | ||
1642 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1643 | } | |
1644 | ||
1645 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1646 | struct device_attribute *attr, |
1647 | const char *buf, size_t count) | |
c2952c31 FL |
1648 | { |
1649 | int new_value, ret = count; | |
1650 | struct bonding *bond = to_bond(d); | |
1651 | ||
1652 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1653 | pr_err("%s: no resend_igmp value specified.\n", | |
1654 | bond->dev->name); | |
1655 | ret = -EINVAL; | |
1656 | goto out; | |
1657 | } | |
1658 | ||
94265cf5 | 1659 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1660 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1661 | bond->dev->name, new_value); | |
1662 | ret = -EINVAL; | |
1663 | goto out; | |
1664 | } | |
1665 | ||
1666 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1667 | bond->dev->name, new_value); | |
1668 | bond->params.resend_igmp = new_value; | |
1669 | out: | |
1670 | return ret; | |
1671 | } | |
1672 | ||
1673 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1674 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1675 | ||
7eacd038 NH |
1676 | |
1677 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1678 | struct device_attribute *attr, | |
1679 | char *buf) | |
1680 | { | |
1681 | struct bonding *bond = to_bond(d); | |
1682 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1683 | } | |
1684 | ||
1685 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1686 | struct device_attribute *attr, | |
1687 | const char *buf, size_t count) | |
1688 | { | |
1689 | struct bonding *bond = to_bond(d); | |
1690 | int new_value, ret = count; | |
1691 | ||
1692 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1693 | pr_err("%s: no lp interval value specified.\n", | |
1694 | bond->dev->name); | |
1695 | ret = -EINVAL; | |
1696 | goto out; | |
1697 | } | |
1698 | ||
1699 | if (new_value <= 0) { | |
1700 | pr_err ("%s: lp_interval must be between 1 and %d\n", | |
1701 | bond->dev->name, INT_MAX); | |
1702 | ret = -EINVAL; | |
1703 | goto out; | |
1704 | } | |
1705 | ||
1706 | bond->params.lp_interval = new_value; | |
1707 | out: | |
1708 | return ret; | |
1709 | } | |
1710 | ||
1711 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1712 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1713 | ||
b76cdba9 | 1714 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1715 | &dev_attr_slaves.attr, |
1716 | &dev_attr_mode.attr, | |
dd957c57 | 1717 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1718 | &dev_attr_arp_validate.attr, |
8599b52e | 1719 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1720 | &dev_attr_arp_interval.attr, |
1721 | &dev_attr_arp_ip_target.attr, | |
1722 | &dev_attr_downdelay.attr, | |
1723 | &dev_attr_updelay.attr, | |
1724 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1725 | &dev_attr_ad_select.attr, |
43cb76d9 | 1726 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1727 | &dev_attr_num_grat_arp.attr, |
1728 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1729 | &dev_attr_miimon.attr, |
1730 | &dev_attr_primary.attr, | |
a549952a | 1731 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1732 | &dev_attr_use_carrier.attr, |
1733 | &dev_attr_active_slave.attr, | |
1734 | &dev_attr_mii_status.attr, | |
1735 | &dev_attr_ad_aggregator.attr, | |
1736 | &dev_attr_ad_num_ports.attr, | |
1737 | &dev_attr_ad_actor_key.attr, | |
1738 | &dev_attr_ad_partner_key.attr, | |
1739 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1740 | &dev_attr_queue_id.attr, |
ebd8e497 | 1741 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1742 | &dev_attr_resend_igmp.attr, |
655f8919 | 1743 | &dev_attr_min_links.attr, |
7eacd038 | 1744 | &dev_attr_lp_interval.attr, |
b76cdba9 MW |
1745 | NULL, |
1746 | }; | |
1747 | ||
1748 | static struct attribute_group bonding_group = { | |
1749 | .name = "bonding", | |
1750 | .attrs = per_bond_attrs, | |
1751 | }; | |
1752 | ||
1753 | /* | |
1754 | * Initialize sysfs. This sets up the bonding_masters file in | |
1755 | * /sys/class/net. | |
1756 | */ | |
4c22400a | 1757 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1758 | { |
b8a9787e | 1759 | int ret; |
b76cdba9 | 1760 | |
4c22400a | 1761 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1762 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a EB |
1763 | |
1764 | ret = netdev_class_create_file(&bn->class_attr_bonding_masters); | |
877cbd36 JV |
1765 | /* |
1766 | * Permit multiple loads of the module by ignoring failures to | |
1767 | * create the bonding_masters sysfs file. Bonding devices | |
1768 | * created by second or subsequent loads of the module will | |
1769 | * not be listed in, or controllable by, bonding_masters, but | |
1770 | * will have the usual "bonding" sysfs directory. | |
1771 | * | |
1772 | * This is done to preserve backwards compatibility for | |
1773 | * initscripts/sysconfig, which load bonding multiple times to | |
1774 | * configure multiple bonding devices. | |
1775 | */ | |
1776 | if (ret == -EEXIST) { | |
38d2f38b | 1777 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1778 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1779 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1780 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1781 | class_attr_bonding_masters.attr.name); |
130aa61a | 1782 | ret = 0; |
877cbd36 | 1783 | } |
b76cdba9 MW |
1784 | |
1785 | return ret; | |
1786 | ||
1787 | } | |
1788 | ||
1789 | /* | |
1790 | * Remove /sys/class/net/bonding_masters. | |
1791 | */ | |
4c22400a | 1792 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1793 | { |
4c22400a | 1794 | netdev_class_remove_file(&bn->class_attr_bonding_masters); |
b76cdba9 MW |
1795 | } |
1796 | ||
1797 | /* | |
1798 | * Initialize sysfs for each bond. This sets up and registers | |
1799 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1800 | */ | |
6151b3d4 | 1801 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1802 | { |
6151b3d4 | 1803 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1804 | } |
1805 |