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 | |
3d632c3f SH |
171 | int bond_create_slave_symlinks(struct net_device *master, |
172 | struct net_device *slave) | |
b76cdba9 MW |
173 | { |
174 | char linkname[IFNAMSIZ+7]; | |
175 | int ret = 0; | |
176 | ||
177 | /* first, create a link from the slave back to the master */ | |
43cb76d9 | 178 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
b76cdba9 MW |
179 | "master"); |
180 | if (ret) | |
181 | return ret; | |
182 | /* next, create a link from the master to the slave */ | |
3d632c3f | 183 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 184 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
b76cdba9 | 185 | linkname); |
9fe16b78 VF |
186 | |
187 | /* free the master link created earlier in case of error */ | |
188 | if (ret) | |
189 | sysfs_remove_link(&(slave->dev.kobj), "master"); | |
190 | ||
b76cdba9 MW |
191 | return ret; |
192 | ||
193 | } | |
194 | ||
3d632c3f SH |
195 | void bond_destroy_slave_symlinks(struct net_device *master, |
196 | struct net_device *slave) | |
b76cdba9 MW |
197 | { |
198 | char linkname[IFNAMSIZ+7]; | |
199 | ||
43cb76d9 | 200 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
3d632c3f | 201 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 202 | sysfs_remove_link(&(master->dev.kobj), linkname); |
b76cdba9 MW |
203 | } |
204 | ||
205 | ||
206 | /* | |
207 | * Show the slaves in the current bond. | |
208 | */ | |
43cb76d9 GKH |
209 | static ssize_t bonding_show_slaves(struct device *d, |
210 | struct device_attribute *attr, char *buf) | |
b76cdba9 MW |
211 | { |
212 | struct slave *slave; | |
213 | int i, res = 0; | |
43cb76d9 | 214 | struct bonding *bond = to_bond(d); |
b76cdba9 | 215 | |
6603a6f2 | 216 | read_lock(&bond->lock); |
b76cdba9 MW |
217 | bond_for_each_slave(bond, slave, i) { |
218 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
219 | /* not enough space for another interface name */ | |
220 | if ((PAGE_SIZE - res) > 10) | |
221 | res = PAGE_SIZE - 10; | |
7bd46508 | 222 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
223 | break; |
224 | } | |
225 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
226 | } | |
6603a6f2 | 227 | read_unlock(&bond->lock); |
1dcdcd69 WF |
228 | if (res) |
229 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
230 | return res; |
231 | } | |
232 | ||
233 | /* | |
234 | * Set the slaves in the current bond. The bond interface must be | |
235 | * up for this to succeed. | |
f9f3545e JP |
236 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
237 | * All hard work should be done there. | |
b76cdba9 | 238 | */ |
43cb76d9 GKH |
239 | static ssize_t bonding_store_slaves(struct device *d, |
240 | struct device_attribute *attr, | |
241 | const char *buffer, size_t count) | |
b76cdba9 MW |
242 | { |
243 | char command[IFNAMSIZ + 1] = { 0, }; | |
244 | char *ifname; | |
f9f3545e JP |
245 | int res, ret = count; |
246 | struct net_device *dev; | |
43cb76d9 | 247 | struct bonding *bond = to_bond(d); |
b76cdba9 | 248 | |
496a60cd EB |
249 | if (!rtnl_trylock()) |
250 | return restart_syscall(); | |
027ea041 | 251 | |
b76cdba9 MW |
252 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
253 | ifname = command + 1; | |
254 | if ((strlen(command) <= 1) || | |
255 | !dev_valid_name(ifname)) | |
256 | goto err_no_cmd; | |
257 | ||
f9f3545e JP |
258 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
259 | if (!dev) { | |
260 | pr_info("%s: Interface %s does not exist!\n", | |
261 | bond->dev->name, ifname); | |
262 | ret = -ENODEV; | |
263 | goto out; | |
264 | } | |
b76cdba9 | 265 | |
f9f3545e JP |
266 | switch (command[0]) { |
267 | case '+': | |
268 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 269 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 270 | break; |
3d632c3f | 271 | |
f9f3545e JP |
272 | case '-': |
273 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
274 | res = bond_release(bond->dev, dev); | |
275 | break; | |
b76cdba9 | 276 | |
f9f3545e JP |
277 | default: |
278 | goto err_no_cmd; | |
b76cdba9 MW |
279 | } |
280 | ||
f9f3545e JP |
281 | if (res) |
282 | ret = res; | |
283 | goto out; | |
284 | ||
b76cdba9 | 285 | err_no_cmd: |
a4aee5c8 JP |
286 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
287 | bond->dev->name); | |
b76cdba9 MW |
288 | ret = -EPERM; |
289 | ||
290 | out: | |
027ea041 | 291 | rtnl_unlock(); |
b76cdba9 MW |
292 | return ret; |
293 | } | |
294 | ||
3d632c3f SH |
295 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
296 | bonding_store_slaves); | |
b76cdba9 MW |
297 | |
298 | /* | |
299 | * Show and set the bonding mode. The bond interface must be down to | |
300 | * change the mode. | |
301 | */ | |
43cb76d9 GKH |
302 | static ssize_t bonding_show_mode(struct device *d, |
303 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 304 | { |
43cb76d9 | 305 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
306 | |
307 | return sprintf(buf, "%s %d\n", | |
308 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 309 | bond->params.mode); |
b76cdba9 MW |
310 | } |
311 | ||
43cb76d9 GKH |
312 | static ssize_t bonding_store_mode(struct device *d, |
313 | struct device_attribute *attr, | |
314 | const char *buf, size_t count) | |
b76cdba9 MW |
315 | { |
316 | int new_value, ret = count; | |
43cb76d9 | 317 | struct bonding *bond = to_bond(d); |
b76cdba9 | 318 | |
ea6836dd | 319 | if (!rtnl_trylock()) |
320 | return restart_syscall(); | |
321 | ||
b76cdba9 | 322 | if (bond->dev->flags & IFF_UP) { |
a4aee5c8 JP |
323 | pr_err("unable to update mode of %s because interface is up.\n", |
324 | bond->dev->name); | |
b76cdba9 MW |
325 | ret = -EPERM; |
326 | goto out; | |
327 | } | |
328 | ||
4a8bb7e2 VF |
329 | if (bond->slave_cnt > 0) { |
330 | pr_err("unable to update mode of %s because it has slaves.\n", | |
331 | bond->dev->name); | |
332 | ret = -EPERM; | |
333 | goto out; | |
334 | } | |
335 | ||
ece95f7f | 336 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 337 | if (new_value < 0) { |
a4aee5c8 JP |
338 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
339 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
340 | ret = -EINVAL; |
341 | goto out; | |
c5cb002f AG |
342 | } |
343 | if ((new_value == BOND_MODE_ALB || | |
344 | new_value == BOND_MODE_TLB) && | |
345 | bond->params.arp_interval) { | |
346 | pr_err("%s: %s mode is incompatible with arp monitoring.\n", | |
347 | bond->dev->name, bond_mode_tbl[new_value].modename); | |
348 | ret = -EINVAL; | |
349 | goto out; | |
350 | } | |
8f903c70 | 351 | |
c5cb002f AG |
352 | bond->params.mode = new_value; |
353 | bond_set_mode_ops(bond, bond->params.mode); | |
354 | pr_info("%s: setting mode to %s (%d).\n", | |
355 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
356 | new_value); | |
b76cdba9 | 357 | out: |
ea6836dd | 358 | rtnl_unlock(); |
b76cdba9 MW |
359 | return ret; |
360 | } | |
3d632c3f SH |
361 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
362 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
363 | |
364 | /* | |
3d632c3f SH |
365 | * Show and set the bonding transmit hash method. |
366 | * The bond interface must be down to change the xmit hash policy. | |
b76cdba9 | 367 | */ |
43cb76d9 GKH |
368 | static ssize_t bonding_show_xmit_hash(struct device *d, |
369 | struct device_attribute *attr, | |
370 | char *buf) | |
b76cdba9 | 371 | { |
43cb76d9 | 372 | struct bonding *bond = to_bond(d); |
b76cdba9 | 373 | |
8e4b9329 WF |
374 | return sprintf(buf, "%s %d\n", |
375 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
376 | bond->params.xmit_policy); | |
b76cdba9 MW |
377 | } |
378 | ||
43cb76d9 GKH |
379 | static ssize_t bonding_store_xmit_hash(struct device *d, |
380 | struct device_attribute *attr, | |
381 | const char *buf, size_t count) | |
b76cdba9 MW |
382 | { |
383 | int new_value, ret = count; | |
43cb76d9 | 384 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
385 | |
386 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 387 | pr_err("%s: Interface is up. Unable to update xmit policy.\n", |
b76cdba9 MW |
388 | bond->dev->name); |
389 | ret = -EPERM; | |
390 | goto out; | |
391 | } | |
392 | ||
ece95f7f | 393 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 394 | if (new_value < 0) { |
a4aee5c8 | 395 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
396 | bond->dev->name, |
397 | (int)strlen(buf) - 1, buf); | |
398 | ret = -EINVAL; | |
399 | goto out; | |
400 | } else { | |
401 | bond->params.xmit_policy = new_value; | |
402 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 | 403 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
404 | bond->dev->name, |
405 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 MW |
406 | } |
407 | out: | |
408 | return ret; | |
409 | } | |
3d632c3f SH |
410 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
411 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 412 | |
f5b2b966 JV |
413 | /* |
414 | * Show and set arp_validate. | |
415 | */ | |
43cb76d9 GKH |
416 | static ssize_t bonding_show_arp_validate(struct device *d, |
417 | struct device_attribute *attr, | |
418 | char *buf) | |
f5b2b966 | 419 | { |
43cb76d9 | 420 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
421 | |
422 | return sprintf(buf, "%s %d\n", | |
423 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 424 | bond->params.arp_validate); |
f5b2b966 JV |
425 | } |
426 | ||
43cb76d9 GKH |
427 | static ssize_t bonding_store_arp_validate(struct device *d, |
428 | struct device_attribute *attr, | |
429 | const char *buf, size_t count) | |
f5b2b966 JV |
430 | { |
431 | int new_value; | |
43cb76d9 | 432 | struct bonding *bond = to_bond(d); |
f5b2b966 | 433 | |
ece95f7f | 434 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 435 | if (new_value < 0) { |
a4aee5c8 | 436 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 JV |
437 | bond->dev->name, buf); |
438 | return -EINVAL; | |
439 | } | |
440 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
a4aee5c8 | 441 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 JV |
442 | bond->dev->name); |
443 | return -EINVAL; | |
444 | } | |
a4aee5c8 JP |
445 | pr_info("%s: setting arp_validate to %s (%d).\n", |
446 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
447 | new_value); | |
f5b2b966 | 448 | |
f5b2b966 JV |
449 | bond->params.arp_validate = new_value; |
450 | ||
451 | return count; | |
452 | } | |
453 | ||
3d632c3f SH |
454 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
455 | bonding_store_arp_validate); | |
f5b2b966 | 456 | |
dd957c57 JV |
457 | /* |
458 | * Show and store fail_over_mac. User only allowed to change the | |
459 | * value when there are no slaves. | |
460 | */ | |
3d632c3f SH |
461 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
462 | struct device_attribute *attr, | |
463 | char *buf) | |
dd957c57 JV |
464 | { |
465 | struct bonding *bond = to_bond(d); | |
466 | ||
3915c1e8 JV |
467 | return sprintf(buf, "%s %d\n", |
468 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
469 | bond->params.fail_over_mac); | |
dd957c57 JV |
470 | } |
471 | ||
3d632c3f SH |
472 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
473 | struct device_attribute *attr, | |
474 | const char *buf, size_t count) | |
dd957c57 JV |
475 | { |
476 | int new_value; | |
dd957c57 JV |
477 | struct bonding *bond = to_bond(d); |
478 | ||
479 | if (bond->slave_cnt != 0) { | |
a4aee5c8 | 480 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 481 | bond->dev->name); |
3915c1e8 | 482 | return -EPERM; |
dd957c57 JV |
483 | } |
484 | ||
3915c1e8 JV |
485 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
486 | if (new_value < 0) { | |
a4aee5c8 | 487 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 JV |
488 | bond->dev->name, buf); |
489 | return -EINVAL; | |
dd957c57 JV |
490 | } |
491 | ||
3915c1e8 | 492 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
493 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
494 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
495 | new_value); | |
3915c1e8 JV |
496 | |
497 | return count; | |
dd957c57 JV |
498 | } |
499 | ||
3d632c3f SH |
500 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
501 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 502 | |
b76cdba9 MW |
503 | /* |
504 | * Show and set the arp timer interval. There are two tricky bits | |
505 | * here. First, if ARP monitoring is activated, then we must disable | |
506 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
507 | * start it. | |
508 | */ | |
43cb76d9 GKH |
509 | static ssize_t bonding_show_arp_interval(struct device *d, |
510 | struct device_attribute *attr, | |
511 | char *buf) | |
b76cdba9 | 512 | { |
43cb76d9 | 513 | struct bonding *bond = to_bond(d); |
b76cdba9 | 514 | |
7bd46508 | 515 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
516 | } |
517 | ||
43cb76d9 GKH |
518 | static ssize_t bonding_store_arp_interval(struct device *d, |
519 | struct device_attribute *attr, | |
520 | const char *buf, size_t count) | |
b76cdba9 MW |
521 | { |
522 | int new_value, ret = count; | |
43cb76d9 | 523 | struct bonding *bond = to_bond(d); |
b76cdba9 | 524 | |
fbb0c41b | 525 | if (!rtnl_trylock()) |
526 | return restart_syscall(); | |
b76cdba9 | 527 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 528 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
529 | bond->dev->name); |
530 | ret = -EINVAL; | |
531 | goto out; | |
532 | } | |
533 | if (new_value < 0) { | |
1bc7db16 | 534 | pr_err("%s: Invalid arp_interval value %d not in range 0-%d; rejected.\n", |
b76cdba9 MW |
535 | bond->dev->name, new_value, INT_MAX); |
536 | ret = -EINVAL; | |
537 | goto out; | |
538 | } | |
c5cb002f AG |
539 | if (bond->params.mode == BOND_MODE_ALB || |
540 | bond->params.mode == BOND_MODE_TLB) { | |
541 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", | |
542 | bond->dev->name, bond->dev->name); | |
543 | ret = -EINVAL; | |
544 | goto out; | |
545 | } | |
a4aee5c8 JP |
546 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
547 | bond->dev->name, new_value); | |
b76cdba9 | 548 | bond->params.arp_interval = new_value; |
1bc7db16 | 549 | if (new_value) { |
550 | if (bond->params.miimon) { | |
551 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
552 | bond->dev->name, bond->dev->name); | |
553 | bond->params.miimon = 0; | |
554 | } | |
555 | if (!bond->params.arp_targets[0]) | |
556 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
557 | bond->dev->name); | |
b76cdba9 MW |
558 | } |
559 | if (bond->dev->flags & IFF_UP) { | |
560 | /* If the interface is up, we may need to fire off | |
561 | * the ARP timer. If the interface is down, the | |
562 | * timer will get fired off when the open function | |
563 | * is called. | |
564 | */ | |
1bc7db16 | 565 | if (!new_value) { |
566 | cancel_delayed_work_sync(&bond->arp_work); | |
567 | } else { | |
568 | cancel_delayed_work_sync(&bond->mii_work); | |
569 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
570 | } | |
b76cdba9 | 571 | } |
b76cdba9 | 572 | out: |
fbb0c41b | 573 | rtnl_unlock(); |
b76cdba9 MW |
574 | return ret; |
575 | } | |
3d632c3f SH |
576 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
577 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
578 | |
579 | /* | |
580 | * Show and set the arp targets. | |
581 | */ | |
43cb76d9 GKH |
582 | static ssize_t bonding_show_arp_targets(struct device *d, |
583 | struct device_attribute *attr, | |
584 | char *buf) | |
b76cdba9 MW |
585 | { |
586 | int i, res = 0; | |
43cb76d9 | 587 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
588 | |
589 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
590 | if (bond->params.arp_targets[i]) | |
63779436 HH |
591 | res += sprintf(buf + res, "%pI4 ", |
592 | &bond->params.arp_targets[i]); | |
b76cdba9 | 593 | } |
1dcdcd69 WF |
594 | if (res) |
595 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
596 | return res; |
597 | } | |
598 | ||
43cb76d9 GKH |
599 | static ssize_t bonding_store_arp_targets(struct device *d, |
600 | struct device_attribute *attr, | |
601 | const char *buf, size_t count) | |
b76cdba9 | 602 | { |
d3bb52b0 | 603 | __be32 newtarget; |
b76cdba9 | 604 | int i = 0, done = 0, ret = count; |
43cb76d9 | 605 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 606 | __be32 *targets; |
b76cdba9 MW |
607 | |
608 | targets = bond->params.arp_targets; | |
609 | newtarget = in_aton(buf + 1); | |
610 | /* look for adds */ | |
611 | if (buf[0] == '+') { | |
d3bb52b0 | 612 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 613 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 614 | bond->dev->name, &newtarget); |
b76cdba9 MW |
615 | ret = -EINVAL; |
616 | goto out; | |
617 | } | |
618 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 619 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 620 | if (targets[i] == newtarget) { /* duplicate */ |
a4aee5c8 | 621 | pr_err("%s: ARP target %pI4 is already present\n", |
63779436 | 622 | bond->dev->name, &newtarget); |
b76cdba9 MW |
623 | ret = -EINVAL; |
624 | goto out; | |
625 | } | |
5a31bec0 | 626 | if (targets[i] == 0) { |
a4aee5c8 JP |
627 | pr_info("%s: adding ARP target %pI4.\n", |
628 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
629 | done = 1; |
630 | targets[i] = newtarget; | |
631 | } | |
632 | } | |
633 | if (!done) { | |
a4aee5c8 | 634 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 MW |
635 | bond->dev->name); |
636 | ret = -EINVAL; | |
637 | goto out; | |
638 | } | |
639 | ||
3d632c3f | 640 | } else if (buf[0] == '-') { |
d3bb52b0 | 641 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 642 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 643 | bond->dev->name, &newtarget); |
b76cdba9 MW |
644 | ret = -EINVAL; |
645 | goto out; | |
646 | } | |
647 | ||
5a31bec0 | 648 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 649 | if (targets[i] == newtarget) { |
5a31bec0 | 650 | int j; |
a4aee5c8 JP |
651 | pr_info("%s: removing ARP target %pI4.\n", |
652 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
653 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
654 | targets[j] = targets[j+1]; | |
655 | ||
656 | targets[j] = 0; | |
b76cdba9 MW |
657 | done = 1; |
658 | } | |
659 | } | |
660 | if (!done) { | |
a4aee5c8 JP |
661 | pr_info("%s: unable to remove nonexistent ARP target %pI4.\n", |
662 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
663 | ret = -EINVAL; |
664 | goto out; | |
665 | } | |
3d632c3f | 666 | } else { |
a4aee5c8 JP |
667 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
668 | bond->dev->name); | |
b76cdba9 MW |
669 | ret = -EPERM; |
670 | goto out; | |
671 | } | |
672 | ||
673 | out: | |
674 | return ret; | |
675 | } | |
43cb76d9 | 676 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
677 | |
678 | /* | |
679 | * Show and set the up and down delays. These must be multiples of the | |
680 | * MII monitoring value, and are stored internally as the multiplier. | |
681 | * Thus, we must translate to MS for the real world. | |
682 | */ | |
43cb76d9 GKH |
683 | static ssize_t bonding_show_downdelay(struct device *d, |
684 | struct device_attribute *attr, | |
685 | char *buf) | |
b76cdba9 | 686 | { |
43cb76d9 | 687 | struct bonding *bond = to_bond(d); |
b76cdba9 | 688 | |
7bd46508 | 689 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
690 | } |
691 | ||
43cb76d9 GKH |
692 | static ssize_t bonding_store_downdelay(struct device *d, |
693 | struct device_attribute *attr, | |
694 | const char *buf, size_t count) | |
b76cdba9 MW |
695 | { |
696 | int new_value, ret = count; | |
43cb76d9 | 697 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
698 | |
699 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 700 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
701 | bond->dev->name); |
702 | ret = -EPERM; | |
703 | goto out; | |
704 | } | |
705 | ||
706 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 707 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
708 | ret = -EINVAL; |
709 | goto out; | |
710 | } | |
711 | if (new_value < 0) { | |
a4aee5c8 | 712 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 713 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
714 | ret = -EINVAL; |
715 | goto out; | |
716 | } else { | |
717 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 718 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
719 | bond->dev->name, new_value, |
720 | bond->params.miimon, | |
721 | (new_value / bond->params.miimon) * | |
722 | bond->params.miimon); | |
b76cdba9 MW |
723 | } |
724 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
725 | pr_info("%s: Setting down delay to %d.\n", |
726 | bond->dev->name, | |
727 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
728 | |
729 | } | |
730 | ||
731 | out: | |
732 | return ret; | |
733 | } | |
3d632c3f SH |
734 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
735 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 736 | |
43cb76d9 GKH |
737 | static ssize_t bonding_show_updelay(struct device *d, |
738 | struct device_attribute *attr, | |
739 | char *buf) | |
b76cdba9 | 740 | { |
43cb76d9 | 741 | struct bonding *bond = to_bond(d); |
b76cdba9 | 742 | |
7bd46508 | 743 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
744 | |
745 | } | |
746 | ||
43cb76d9 GKH |
747 | static ssize_t bonding_store_updelay(struct device *d, |
748 | struct device_attribute *attr, | |
749 | const char *buf, size_t count) | |
b76cdba9 MW |
750 | { |
751 | int new_value, ret = count; | |
43cb76d9 | 752 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
753 | |
754 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 755 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
756 | bond->dev->name); |
757 | ret = -EPERM; | |
758 | goto out; | |
759 | } | |
760 | ||
761 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 762 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
763 | bond->dev->name); |
764 | ret = -EINVAL; | |
765 | goto out; | |
766 | } | |
767 | if (new_value < 0) { | |
1bc7db16 | 768 | pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n", |
769 | bond->dev->name, new_value, 0, INT_MAX); | |
b76cdba9 MW |
770 | ret = -EINVAL; |
771 | goto out; | |
772 | } else { | |
773 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 774 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
775 | bond->dev->name, new_value, |
776 | bond->params.miimon, | |
777 | (new_value / bond->params.miimon) * | |
778 | bond->params.miimon); | |
b76cdba9 MW |
779 | } |
780 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
781 | pr_info("%s: Setting up delay to %d.\n", |
782 | bond->dev->name, | |
783 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
784 | } |
785 | ||
786 | out: | |
787 | return ret; | |
788 | } | |
3d632c3f SH |
789 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
790 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
791 | |
792 | /* | |
793 | * Show and set the LACP interval. Interface must be down, and the mode | |
794 | * must be set to 802.3ad mode. | |
795 | */ | |
43cb76d9 GKH |
796 | static ssize_t bonding_show_lacp(struct device *d, |
797 | struct device_attribute *attr, | |
798 | char *buf) | |
b76cdba9 | 799 | { |
43cb76d9 | 800 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
801 | |
802 | return sprintf(buf, "%s %d\n", | |
803 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 804 | bond->params.lacp_fast); |
b76cdba9 MW |
805 | } |
806 | ||
43cb76d9 GKH |
807 | static ssize_t bonding_store_lacp(struct device *d, |
808 | struct device_attribute *attr, | |
809 | const char *buf, size_t count) | |
b76cdba9 MW |
810 | { |
811 | int new_value, ret = count; | |
43cb76d9 | 812 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
813 | |
814 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 815 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
816 | bond->dev->name); |
817 | ret = -EPERM; | |
818 | goto out; | |
819 | } | |
820 | ||
821 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 822 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
823 | bond->dev->name); |
824 | ret = -EPERM; | |
825 | goto out; | |
826 | } | |
827 | ||
ece95f7f | 828 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
829 | |
830 | if ((new_value == 1) || (new_value == 0)) { | |
831 | bond->params.lacp_fast = new_value; | |
ba824a8b | 832 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 833 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
834 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
835 | new_value); | |
b76cdba9 | 836 | } else { |
a4aee5c8 | 837 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 838 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
839 | ret = -EINVAL; |
840 | } | |
841 | out: | |
842 | return ret; | |
843 | } | |
3d632c3f SH |
844 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
845 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 846 | |
655f8919 | 847 | static ssize_t bonding_show_min_links(struct device *d, |
848 | struct device_attribute *attr, | |
849 | char *buf) | |
850 | { | |
851 | struct bonding *bond = to_bond(d); | |
852 | ||
853 | return sprintf(buf, "%d\n", bond->params.min_links); | |
854 | } | |
855 | ||
856 | static ssize_t bonding_store_min_links(struct device *d, | |
857 | struct device_attribute *attr, | |
858 | const char *buf, size_t count) | |
859 | { | |
860 | struct bonding *bond = to_bond(d); | |
861 | int ret; | |
862 | unsigned int new_value; | |
863 | ||
864 | ret = kstrtouint(buf, 0, &new_value); | |
865 | if (ret < 0) { | |
866 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
867 | bond->dev->name, buf); | |
868 | return ret; | |
869 | } | |
870 | ||
871 | pr_info("%s: Setting min links value to %u\n", | |
872 | bond->dev->name, new_value); | |
873 | bond->params.min_links = new_value; | |
874 | return count; | |
875 | } | |
876 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
877 | bonding_show_min_links, bonding_store_min_links); | |
878 | ||
fd989c83 JV |
879 | static ssize_t bonding_show_ad_select(struct device *d, |
880 | struct device_attribute *attr, | |
881 | char *buf) | |
882 | { | |
883 | struct bonding *bond = to_bond(d); | |
884 | ||
885 | return sprintf(buf, "%s %d\n", | |
886 | ad_select_tbl[bond->params.ad_select].modename, | |
887 | bond->params.ad_select); | |
888 | } | |
889 | ||
890 | ||
891 | static ssize_t bonding_store_ad_select(struct device *d, | |
892 | struct device_attribute *attr, | |
893 | const char *buf, size_t count) | |
894 | { | |
895 | int new_value, ret = count; | |
896 | struct bonding *bond = to_bond(d); | |
897 | ||
898 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
899 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
900 | bond->dev->name); | |
fd989c83 JV |
901 | ret = -EPERM; |
902 | goto out; | |
903 | } | |
904 | ||
905 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
906 | ||
907 | if (new_value != -1) { | |
908 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
909 | pr_info("%s: Setting ad_select to %s (%d).\n", |
910 | bond->dev->name, ad_select_tbl[new_value].modename, | |
911 | new_value); | |
fd989c83 | 912 | } else { |
a4aee5c8 | 913 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
914 | bond->dev->name, (int)strlen(buf) - 1, buf); |
915 | ret = -EINVAL; | |
916 | } | |
917 | out: | |
918 | return ret; | |
919 | } | |
3d632c3f SH |
920 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
921 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 922 | |
ad246c99 BH |
923 | /* |
924 | * Show and set the number of peer notifications to send after a failover event. | |
925 | */ | |
926 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
927 | struct device_attribute *attr, | |
928 | char *buf) | |
929 | { | |
930 | struct bonding *bond = to_bond(d); | |
931 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
932 | } | |
933 | ||
934 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
935 | struct device_attribute *attr, | |
936 | const char *buf, size_t count) | |
937 | { | |
938 | struct bonding *bond = to_bond(d); | |
939 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
940 | return err ? err : count; | |
941 | } | |
942 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
943 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
944 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
945 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
946 | ||
b76cdba9 MW |
947 | /* |
948 | * Show and set the MII monitor interval. There are two tricky bits | |
949 | * here. First, if MII monitoring is activated, then we must disable | |
950 | * ARP monitoring. Second, if the timer isn't running, we must | |
951 | * start it. | |
952 | */ | |
43cb76d9 GKH |
953 | static ssize_t bonding_show_miimon(struct device *d, |
954 | struct device_attribute *attr, | |
955 | char *buf) | |
b76cdba9 | 956 | { |
43cb76d9 | 957 | struct bonding *bond = to_bond(d); |
b76cdba9 | 958 | |
7bd46508 | 959 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
960 | } |
961 | ||
43cb76d9 GKH |
962 | static ssize_t bonding_store_miimon(struct device *d, |
963 | struct device_attribute *attr, | |
964 | const char *buf, size_t count) | |
b76cdba9 MW |
965 | { |
966 | int new_value, ret = count; | |
43cb76d9 | 967 | struct bonding *bond = to_bond(d); |
b76cdba9 | 968 | |
fbb0c41b | 969 | if (!rtnl_trylock()) |
970 | return restart_syscall(); | |
b76cdba9 | 971 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 972 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
973 | bond->dev->name); |
974 | ret = -EINVAL; | |
975 | goto out; | |
976 | } | |
977 | if (new_value < 0) { | |
a4aee5c8 | 978 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 979 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
980 | ret = -EINVAL; |
981 | goto out; | |
1bc7db16 | 982 | } |
983 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
984 | bond->dev->name, new_value); | |
985 | bond->params.miimon = new_value; | |
986 | if (bond->params.updelay) | |
987 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
988 | bond->dev->name, | |
989 | bond->params.updelay * bond->params.miimon); | |
990 | if (bond->params.downdelay) | |
991 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
992 | bond->dev->name, | |
993 | bond->params.downdelay * bond->params.miimon); | |
994 | if (new_value && bond->params.arp_interval) { | |
995 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", | |
996 | bond->dev->name); | |
997 | bond->params.arp_interval = 0; | |
998 | if (bond->params.arp_validate) | |
999 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
1000 | } | |
1001 | if (bond->dev->flags & IFF_UP) { | |
1002 | /* If the interface is up, we may need to fire off | |
1003 | * the MII timer. If the interface is down, the | |
1004 | * timer will get fired off when the open function | |
1005 | * is called. | |
1006 | */ | |
1007 | if (!new_value) { | |
1008 | cancel_delayed_work_sync(&bond->mii_work); | |
1009 | } else { | |
fbb0c41b | 1010 | cancel_delayed_work_sync(&bond->arp_work); |
1011 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
b76cdba9 MW |
1012 | } |
1013 | } | |
1014 | out: | |
fbb0c41b | 1015 | rtnl_unlock(); |
b76cdba9 MW |
1016 | return ret; |
1017 | } | |
3d632c3f SH |
1018 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1019 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1020 | |
1021 | /* | |
1022 | * Show and set the primary slave. The store function is much | |
1023 | * simpler than bonding_store_slaves function because it only needs to | |
1024 | * handle one interface name. | |
1025 | * The bond must be a mode that supports a primary for this be | |
1026 | * set. | |
1027 | */ | |
43cb76d9 GKH |
1028 | static ssize_t bonding_show_primary(struct device *d, |
1029 | struct device_attribute *attr, | |
1030 | char *buf) | |
b76cdba9 MW |
1031 | { |
1032 | int count = 0; | |
43cb76d9 | 1033 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1034 | |
1035 | if (bond->primary_slave) | |
7bd46508 | 1036 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1037 | |
1038 | return count; | |
1039 | } | |
1040 | ||
43cb76d9 GKH |
1041 | static ssize_t bonding_store_primary(struct device *d, |
1042 | struct device_attribute *attr, | |
1043 | const char *buf, size_t count) | |
b76cdba9 MW |
1044 | { |
1045 | int i; | |
1046 | struct slave *slave; | |
43cb76d9 | 1047 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1048 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1049 | |
496a60cd EB |
1050 | if (!rtnl_trylock()) |
1051 | return restart_syscall(); | |
e843fa50 | 1052 | block_netpoll_tx(); |
e934dd78 JV |
1053 | read_lock(&bond->lock); |
1054 | write_lock_bh(&bond->curr_slave_lock); | |
1055 | ||
b76cdba9 | 1056 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1057 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1058 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1059 | goto out; |
1060 | } | |
b76cdba9 | 1061 | |
eb6e98a1 | 1062 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1063 | |
f4bb2e9c AG |
1064 | /* check to see if we are clearing primary */ |
1065 | if (!strlen(ifname) || buf[0] == '\n') { | |
1066 | pr_info("%s: Setting primary slave to None.\n", | |
1067 | bond->dev->name); | |
1068 | bond->primary_slave = NULL; | |
eb492f74 | 1069 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
f4bb2e9c AG |
1070 | bond_select_active_slave(bond); |
1071 | goto out; | |
1072 | } | |
1073 | ||
1074 | bond_for_each_slave(bond, slave, i) { | |
1075 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
1076 | pr_info("%s: Setting %s as primary slave.\n", | |
1077 | bond->dev->name, slave->dev->name); | |
1078 | bond->primary_slave = slave; | |
1079 | strcpy(bond->params.primary, slave->dev->name); | |
1080 | bond_select_active_slave(bond); | |
1081 | goto out; | |
b76cdba9 MW |
1082 | } |
1083 | } | |
f4bb2e9c | 1084 | |
8a93664d WP |
1085 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1086 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1087 | ||
1088 | pr_info("%s: Recording %s as primary, " | |
1089 | "but it has not been enslaved to %s yet.\n", | |
1090 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1091 | out: |
e934dd78 JV |
1092 | write_unlock_bh(&bond->curr_slave_lock); |
1093 | read_unlock(&bond->lock); | |
e843fa50 | 1094 | unblock_netpoll_tx(); |
6603a6f2 JV |
1095 | rtnl_unlock(); |
1096 | ||
b76cdba9 MW |
1097 | return count; |
1098 | } | |
3d632c3f SH |
1099 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1100 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1101 | |
a549952a JP |
1102 | /* |
1103 | * Show and set the primary_reselect flag. | |
1104 | */ | |
1105 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1106 | struct device_attribute *attr, | |
1107 | char *buf) | |
1108 | { | |
1109 | struct bonding *bond = to_bond(d); | |
1110 | ||
1111 | return sprintf(buf, "%s %d\n", | |
1112 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1113 | bond->params.primary_reselect); | |
1114 | } | |
1115 | ||
1116 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1117 | struct device_attribute *attr, | |
1118 | const char *buf, size_t count) | |
1119 | { | |
1120 | int new_value, ret = count; | |
1121 | struct bonding *bond = to_bond(d); | |
1122 | ||
1123 | if (!rtnl_trylock()) | |
1124 | return restart_syscall(); | |
1125 | ||
1126 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1127 | if (new_value < 0) { | |
a4aee5c8 | 1128 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1129 | bond->dev->name, |
1130 | (int) strlen(buf) - 1, buf); | |
1131 | ret = -EINVAL; | |
1132 | goto out; | |
1133 | } | |
1134 | ||
1135 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1136 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1137 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1138 | new_value); | |
1139 | ||
e843fa50 | 1140 | block_netpoll_tx(); |
a549952a JP |
1141 | read_lock(&bond->lock); |
1142 | write_lock_bh(&bond->curr_slave_lock); | |
1143 | bond_select_active_slave(bond); | |
1144 | write_unlock_bh(&bond->curr_slave_lock); | |
1145 | read_unlock(&bond->lock); | |
e843fa50 | 1146 | unblock_netpoll_tx(); |
a549952a JP |
1147 | out: |
1148 | rtnl_unlock(); | |
1149 | return ret; | |
1150 | } | |
1151 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1152 | bonding_show_primary_reselect, | |
1153 | bonding_store_primary_reselect); | |
1154 | ||
b76cdba9 MW |
1155 | /* |
1156 | * Show and set the use_carrier flag. | |
1157 | */ | |
43cb76d9 GKH |
1158 | static ssize_t bonding_show_carrier(struct device *d, |
1159 | struct device_attribute *attr, | |
1160 | char *buf) | |
b76cdba9 | 1161 | { |
43cb76d9 | 1162 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1163 | |
7bd46508 | 1164 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1165 | } |
1166 | ||
43cb76d9 GKH |
1167 | static ssize_t bonding_store_carrier(struct device *d, |
1168 | struct device_attribute *attr, | |
1169 | const char *buf, size_t count) | |
b76cdba9 MW |
1170 | { |
1171 | int new_value, ret = count; | |
43cb76d9 | 1172 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1173 | |
1174 | ||
1175 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1176 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1177 | bond->dev->name); |
1178 | ret = -EINVAL; | |
1179 | goto out; | |
1180 | } | |
1181 | if ((new_value == 0) || (new_value == 1)) { | |
1182 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1183 | pr_info("%s: Setting use_carrier to %d.\n", |
1184 | bond->dev->name, new_value); | |
b76cdba9 | 1185 | } else { |
a4aee5c8 JP |
1186 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1187 | bond->dev->name, new_value); | |
b76cdba9 MW |
1188 | } |
1189 | out: | |
672bda33 | 1190 | return ret; |
b76cdba9 | 1191 | } |
3d632c3f SH |
1192 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1193 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1194 | |
1195 | ||
1196 | /* | |
1197 | * Show and set currently active_slave. | |
1198 | */ | |
43cb76d9 GKH |
1199 | static ssize_t bonding_show_active_slave(struct device *d, |
1200 | struct device_attribute *attr, | |
1201 | char *buf) | |
b76cdba9 MW |
1202 | { |
1203 | struct slave *curr; | |
43cb76d9 | 1204 | struct bonding *bond = to_bond(d); |
16cd0160 | 1205 | int count = 0; |
b76cdba9 | 1206 | |
b76cdba9 MW |
1207 | read_lock(&bond->curr_slave_lock); |
1208 | curr = bond->curr_active_slave; | |
1209 | read_unlock(&bond->curr_slave_lock); | |
1210 | ||
1211 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1212 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1213 | return count; |
1214 | } | |
1215 | ||
43cb76d9 GKH |
1216 | static ssize_t bonding_store_active_slave(struct device *d, |
1217 | struct device_attribute *attr, | |
1218 | const char *buf, size_t count) | |
b76cdba9 MW |
1219 | { |
1220 | int i; | |
1221 | struct slave *slave; | |
3d632c3f SH |
1222 | struct slave *old_active = NULL; |
1223 | struct slave *new_active = NULL; | |
43cb76d9 | 1224 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1225 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1226 | |
496a60cd EB |
1227 | if (!rtnl_trylock()) |
1228 | return restart_syscall(); | |
e843fa50 NH |
1229 | |
1230 | block_netpoll_tx(); | |
e934dd78 JV |
1231 | read_lock(&bond->lock); |
1232 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1233 | |
f4bb2e9c | 1234 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 | 1235 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f | 1236 | bond->dev->name, bond->dev->name, bond->params.mode); |
f4bb2e9c AG |
1237 | goto out; |
1238 | } | |
1239 | ||
c84e1590 | 1240 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c AG |
1241 | |
1242 | /* check to see if we are clearing active */ | |
1243 | if (!strlen(ifname) || buf[0] == '\n') { | |
1244 | pr_info("%s: Clearing current active slave.\n", | |
1245 | bond->dev->name); | |
1246 | bond->curr_active_slave = NULL; | |
1247 | bond_select_active_slave(bond); | |
1248 | goto out; | |
1249 | } | |
1250 | ||
1251 | bond_for_each_slave(bond, slave, i) { | |
1252 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
1253 | old_active = bond->curr_active_slave; | |
1254 | new_active = slave; | |
1255 | if (new_active == old_active) { | |
1256 | /* do nothing */ | |
1257 | pr_info("%s: %s is already the current" | |
1258 | " active slave.\n", | |
1259 | bond->dev->name, | |
1260 | slave->dev->name); | |
1261 | goto out; | |
1262 | } | |
1263 | else { | |
1264 | if ((new_active) && | |
1265 | (old_active) && | |
1266 | (new_active->link == BOND_LINK_UP) && | |
1267 | IS_UP(new_active->dev)) { | |
1268 | pr_info("%s: Setting %s as active" | |
1269 | " slave.\n", | |
a4aee5c8 JP |
1270 | bond->dev->name, |
1271 | slave->dev->name); | |
f4bb2e9c AG |
1272 | bond_change_active_slave(bond, |
1273 | new_active); | |
b76cdba9 MW |
1274 | } |
1275 | else { | |
f4bb2e9c AG |
1276 | pr_info("%s: Could not set %s as" |
1277 | " active slave; either %s is" | |
1278 | " down or the link is down.\n", | |
1279 | bond->dev->name, | |
1280 | slave->dev->name, | |
1281 | slave->dev->name); | |
b76cdba9 | 1282 | } |
f4bb2e9c | 1283 | goto out; |
b76cdba9 MW |
1284 | } |
1285 | } | |
b76cdba9 | 1286 | } |
f4bb2e9c AG |
1287 | |
1288 | pr_info("%s: Unable to set %.*s as active slave.\n", | |
1289 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
3d632c3f | 1290 | out: |
e934dd78 JV |
1291 | write_unlock_bh(&bond->curr_slave_lock); |
1292 | read_unlock(&bond->lock); | |
e843fa50 NH |
1293 | unblock_netpoll_tx(); |
1294 | ||
6603a6f2 JV |
1295 | rtnl_unlock(); |
1296 | ||
b76cdba9 MW |
1297 | return count; |
1298 | ||
1299 | } | |
3d632c3f SH |
1300 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1301 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1302 | |
1303 | ||
1304 | /* | |
1305 | * Show link status of the bond interface. | |
1306 | */ | |
43cb76d9 GKH |
1307 | static ssize_t bonding_show_mii_status(struct device *d, |
1308 | struct device_attribute *attr, | |
1309 | char *buf) | |
b76cdba9 MW |
1310 | { |
1311 | struct slave *curr; | |
43cb76d9 | 1312 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1313 | |
1314 | read_lock(&bond->curr_slave_lock); | |
1315 | curr = bond->curr_active_slave; | |
1316 | read_unlock(&bond->curr_slave_lock); | |
1317 | ||
3d632c3f | 1318 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1319 | } |
43cb76d9 | 1320 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1321 | |
b76cdba9 MW |
1322 | /* |
1323 | * Show current 802.3ad aggregator ID. | |
1324 | */ | |
43cb76d9 GKH |
1325 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1326 | struct device_attribute *attr, | |
1327 | char *buf) | |
b76cdba9 MW |
1328 | { |
1329 | int count = 0; | |
43cb76d9 | 1330 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1331 | |
1332 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1333 | struct ad_info ad_info; | |
3d632c3f | 1334 | count = sprintf(buf, "%d\n", |
318debd8 | 1335 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1336 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1337 | } |
b76cdba9 MW |
1338 | |
1339 | return count; | |
1340 | } | |
43cb76d9 | 1341 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1342 | |
1343 | ||
1344 | /* | |
1345 | * Show number of active 802.3ad ports. | |
1346 | */ | |
43cb76d9 GKH |
1347 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1348 | struct device_attribute *attr, | |
1349 | char *buf) | |
b76cdba9 MW |
1350 | { |
1351 | int count = 0; | |
43cb76d9 | 1352 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1353 | |
1354 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1355 | struct ad_info ad_info; | |
3d632c3f | 1356 | count = sprintf(buf, "%d\n", |
318debd8 | 1357 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1358 | ? 0 : ad_info.ports); |
b76cdba9 | 1359 | } |
b76cdba9 MW |
1360 | |
1361 | return count; | |
1362 | } | |
43cb76d9 | 1363 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1364 | |
1365 | ||
1366 | /* | |
1367 | * Show current 802.3ad actor key. | |
1368 | */ | |
43cb76d9 GKH |
1369 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1370 | struct device_attribute *attr, | |
1371 | char *buf) | |
b76cdba9 MW |
1372 | { |
1373 | int count = 0; | |
43cb76d9 | 1374 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1375 | |
1376 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1377 | struct ad_info ad_info; | |
3d632c3f | 1378 | count = sprintf(buf, "%d\n", |
318debd8 | 1379 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1380 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1381 | } |
b76cdba9 MW |
1382 | |
1383 | return count; | |
1384 | } | |
43cb76d9 | 1385 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1386 | |
1387 | ||
1388 | /* | |
1389 | * Show current 802.3ad partner key. | |
1390 | */ | |
43cb76d9 GKH |
1391 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1392 | struct device_attribute *attr, | |
1393 | char *buf) | |
b76cdba9 MW |
1394 | { |
1395 | int count = 0; | |
43cb76d9 | 1396 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1397 | |
1398 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1399 | struct ad_info ad_info; | |
3d632c3f | 1400 | count = sprintf(buf, "%d\n", |
318debd8 | 1401 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1402 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1403 | } |
b76cdba9 MW |
1404 | |
1405 | return count; | |
1406 | } | |
43cb76d9 | 1407 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1408 | |
1409 | ||
1410 | /* | |
1411 | * Show current 802.3ad partner mac. | |
1412 | */ | |
43cb76d9 GKH |
1413 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1414 | struct device_attribute *attr, | |
1415 | char *buf) | |
b76cdba9 MW |
1416 | { |
1417 | int count = 0; | |
43cb76d9 | 1418 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1419 | |
1420 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1421 | struct ad_info ad_info; | |
3d632c3f | 1422 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1423 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1424 | } |
b76cdba9 MW |
1425 | |
1426 | return count; | |
1427 | } | |
43cb76d9 | 1428 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1429 | |
bb1d9123 AG |
1430 | /* |
1431 | * Show the queue_ids of the slaves in the current bond. | |
1432 | */ | |
1433 | static ssize_t bonding_show_queue_id(struct device *d, | |
1434 | struct device_attribute *attr, | |
1435 | char *buf) | |
1436 | { | |
1437 | struct slave *slave; | |
1438 | int i, res = 0; | |
1439 | struct bonding *bond = to_bond(d); | |
1440 | ||
1441 | if (!rtnl_trylock()) | |
1442 | return restart_syscall(); | |
1443 | ||
1444 | read_lock(&bond->lock); | |
1445 | bond_for_each_slave(bond, slave, i) { | |
79236680 NP |
1446 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1447 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1448 | if ((PAGE_SIZE - res) > 10) |
1449 | res = PAGE_SIZE - 10; | |
1450 | res += sprintf(buf + res, "++more++ "); | |
1451 | break; | |
1452 | } | |
1453 | res += sprintf(buf + res, "%s:%d ", | |
1454 | slave->dev->name, slave->queue_id); | |
1455 | } | |
1456 | read_unlock(&bond->lock); | |
1457 | if (res) | |
1458 | buf[res-1] = '\n'; /* eat the leftover space */ | |
1459 | rtnl_unlock(); | |
1460 | return res; | |
1461 | } | |
1462 | ||
1463 | /* | |
1464 | * Set the queue_ids of the slaves in the current bond. The bond | |
1465 | * interface must be enslaved for this to work. | |
1466 | */ | |
1467 | static ssize_t bonding_store_queue_id(struct device *d, | |
1468 | struct device_attribute *attr, | |
1469 | const char *buffer, size_t count) | |
1470 | { | |
1471 | struct slave *slave, *update_slave; | |
1472 | struct bonding *bond = to_bond(d); | |
1473 | u16 qid; | |
1474 | int i, ret = count; | |
1475 | char *delim; | |
1476 | struct net_device *sdev = NULL; | |
1477 | ||
1478 | if (!rtnl_trylock()) | |
1479 | return restart_syscall(); | |
1480 | ||
1481 | /* delim will point to queue id if successful */ | |
1482 | delim = strchr(buffer, ':'); | |
1483 | if (!delim) | |
1484 | goto err_no_cmd; | |
1485 | ||
1486 | /* | |
1487 | * Terminate string that points to device name and bump it | |
1488 | * up one, so we can read the queue id there. | |
1489 | */ | |
1490 | *delim = '\0'; | |
1491 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1492 | goto err_no_cmd; | |
1493 | ||
1494 | /* Check buffer length, valid ifname and queue id */ | |
1495 | if (strlen(buffer) > IFNAMSIZ || | |
1496 | !dev_valid_name(buffer) || | |
8a540ff9 | 1497 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1498 | goto err_no_cmd; |
1499 | ||
1500 | /* Get the pointer to that interface if it exists */ | |
1501 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1502 | if (!sdev) | |
1503 | goto err_no_cmd; | |
1504 | ||
1505 | read_lock(&bond->lock); | |
1506 | ||
1507 | /* Search for thes slave and check for duplicate qids */ | |
1508 | update_slave = NULL; | |
1509 | bond_for_each_slave(bond, slave, i) { | |
1510 | if (sdev == slave->dev) | |
1511 | /* | |
1512 | * We don't need to check the matching | |
1513 | * slave for dups, since we're overwriting it | |
1514 | */ | |
1515 | update_slave = slave; | |
1516 | else if (qid && qid == slave->queue_id) { | |
1517 | goto err_no_cmd_unlock; | |
1518 | } | |
1519 | } | |
1520 | ||
1521 | if (!update_slave) | |
1522 | goto err_no_cmd_unlock; | |
1523 | ||
1524 | /* Actually set the qids for the slave */ | |
1525 | update_slave->queue_id = qid; | |
1526 | ||
1527 | read_unlock(&bond->lock); | |
1528 | out: | |
1529 | rtnl_unlock(); | |
1530 | return ret; | |
1531 | ||
1532 | err_no_cmd_unlock: | |
1533 | read_unlock(&bond->lock); | |
1534 | err_no_cmd: | |
1535 | pr_info("invalid input for queue_id set for %s.\n", | |
1536 | bond->dev->name); | |
1537 | ret = -EPERM; | |
1538 | goto out; | |
1539 | } | |
1540 | ||
1541 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1542 | bonding_store_queue_id); | |
1543 | ||
1544 | ||
ebd8e497 AG |
1545 | /* |
1546 | * Show and set the all_slaves_active flag. | |
1547 | */ | |
1548 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1549 | struct device_attribute *attr, | |
1550 | char *buf) | |
1551 | { | |
1552 | struct bonding *bond = to_bond(d); | |
1553 | ||
1554 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1555 | } | |
1556 | ||
1557 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1558 | struct device_attribute *attr, | |
1559 | const char *buf, size_t count) | |
1560 | { | |
1561 | int i, new_value, ret = count; | |
1562 | struct bonding *bond = to_bond(d); | |
1563 | struct slave *slave; | |
1564 | ||
1565 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1566 | pr_err("%s: no all_slaves_active value specified.\n", | |
1567 | bond->dev->name); | |
1568 | ret = -EINVAL; | |
1569 | goto out; | |
1570 | } | |
1571 | ||
1572 | if (new_value == bond->params.all_slaves_active) | |
1573 | goto out; | |
1574 | ||
1575 | if ((new_value == 0) || (new_value == 1)) { | |
1576 | bond->params.all_slaves_active = new_value; | |
1577 | } else { | |
1578 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1579 | bond->dev->name, new_value); | |
1580 | ret = -EINVAL; | |
1581 | goto out; | |
1582 | } | |
b76cdba9 | 1583 | |
e196c0e5 | 1584 | read_lock(&bond->lock); |
ebd8e497 | 1585 | bond_for_each_slave(bond, slave, i) { |
e30bc066 | 1586 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1587 | if (new_value) |
2d7011ca | 1588 | slave->inactive = 0; |
ebd8e497 | 1589 | else |
2d7011ca | 1590 | slave->inactive = 1; |
ebd8e497 AG |
1591 | } |
1592 | } | |
e196c0e5 | 1593 | read_unlock(&bond->lock); |
ebd8e497 | 1594 | out: |
672bda33 | 1595 | return ret; |
ebd8e497 AG |
1596 | } |
1597 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1598 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1599 | |
c2952c31 FL |
1600 | /* |
1601 | * Show and set the number of IGMP membership reports to send on link failure | |
1602 | */ | |
1603 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1604 | struct device_attribute *attr, |
1605 | char *buf) | |
c2952c31 FL |
1606 | { |
1607 | struct bonding *bond = to_bond(d); | |
1608 | ||
1609 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1610 | } | |
1611 | ||
1612 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1613 | struct device_attribute *attr, |
1614 | const char *buf, size_t count) | |
c2952c31 FL |
1615 | { |
1616 | int new_value, ret = count; | |
1617 | struct bonding *bond = to_bond(d); | |
1618 | ||
1619 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1620 | pr_err("%s: no resend_igmp value specified.\n", | |
1621 | bond->dev->name); | |
1622 | ret = -EINVAL; | |
1623 | goto out; | |
1624 | } | |
1625 | ||
94265cf5 | 1626 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1627 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1628 | bond->dev->name, new_value); | |
1629 | ret = -EINVAL; | |
1630 | goto out; | |
1631 | } | |
1632 | ||
1633 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1634 | bond->dev->name, new_value); | |
1635 | bond->params.resend_igmp = new_value; | |
1636 | out: | |
1637 | return ret; | |
1638 | } | |
1639 | ||
1640 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1641 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1642 | ||
b76cdba9 | 1643 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1644 | &dev_attr_slaves.attr, |
1645 | &dev_attr_mode.attr, | |
dd957c57 | 1646 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1647 | &dev_attr_arp_validate.attr, |
1648 | &dev_attr_arp_interval.attr, | |
1649 | &dev_attr_arp_ip_target.attr, | |
1650 | &dev_attr_downdelay.attr, | |
1651 | &dev_attr_updelay.attr, | |
1652 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1653 | &dev_attr_ad_select.attr, |
43cb76d9 | 1654 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1655 | &dev_attr_num_grat_arp.attr, |
1656 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1657 | &dev_attr_miimon.attr, |
1658 | &dev_attr_primary.attr, | |
a549952a | 1659 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1660 | &dev_attr_use_carrier.attr, |
1661 | &dev_attr_active_slave.attr, | |
1662 | &dev_attr_mii_status.attr, | |
1663 | &dev_attr_ad_aggregator.attr, | |
1664 | &dev_attr_ad_num_ports.attr, | |
1665 | &dev_attr_ad_actor_key.attr, | |
1666 | &dev_attr_ad_partner_key.attr, | |
1667 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1668 | &dev_attr_queue_id.attr, |
ebd8e497 | 1669 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1670 | &dev_attr_resend_igmp.attr, |
655f8919 | 1671 | &dev_attr_min_links.attr, |
b76cdba9 MW |
1672 | NULL, |
1673 | }; | |
1674 | ||
1675 | static struct attribute_group bonding_group = { | |
1676 | .name = "bonding", | |
1677 | .attrs = per_bond_attrs, | |
1678 | }; | |
1679 | ||
1680 | /* | |
1681 | * Initialize sysfs. This sets up the bonding_masters file in | |
1682 | * /sys/class/net. | |
1683 | */ | |
4c22400a | 1684 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1685 | { |
b8a9787e | 1686 | int ret; |
b76cdba9 | 1687 | |
4c22400a | 1688 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1689 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a EB |
1690 | |
1691 | ret = netdev_class_create_file(&bn->class_attr_bonding_masters); | |
877cbd36 JV |
1692 | /* |
1693 | * Permit multiple loads of the module by ignoring failures to | |
1694 | * create the bonding_masters sysfs file. Bonding devices | |
1695 | * created by second or subsequent loads of the module will | |
1696 | * not be listed in, or controllable by, bonding_masters, but | |
1697 | * will have the usual "bonding" sysfs directory. | |
1698 | * | |
1699 | * This is done to preserve backwards compatibility for | |
1700 | * initscripts/sysconfig, which load bonding multiple times to | |
1701 | * configure multiple bonding devices. | |
1702 | */ | |
1703 | if (ret == -EEXIST) { | |
38d2f38b | 1704 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1705 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1706 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1707 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1708 | class_attr_bonding_masters.attr.name); |
130aa61a | 1709 | ret = 0; |
877cbd36 | 1710 | } |
b76cdba9 MW |
1711 | |
1712 | return ret; | |
1713 | ||
1714 | } | |
1715 | ||
1716 | /* | |
1717 | * Remove /sys/class/net/bonding_masters. | |
1718 | */ | |
4c22400a | 1719 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1720 | { |
4c22400a | 1721 | netdev_class_remove_file(&bn->class_attr_bonding_masters); |
b76cdba9 MW |
1722 | } |
1723 | ||
1724 | /* | |
1725 | * Initialize sysfs for each bond. This sets up and registers | |
1726 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1727 | */ | |
6151b3d4 | 1728 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1729 | { |
6151b3d4 | 1730 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1731 | } |
1732 |