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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 | 211 | { |
43cb76d9 | 212 | struct bonding *bond = to_bond(d); |
dec1e90e | 213 | struct slave *slave; |
214 | int res = 0; | |
b76cdba9 | 215 | |
6603a6f2 | 216 | read_lock(&bond->lock); |
dec1e90e | 217 | bond_for_each_slave(bond, slave) { |
b76cdba9 MW |
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 */ | |
dec1e90e | 230 | |
b76cdba9 MW |
231 | return res; |
232 | } | |
233 | ||
234 | /* | |
d6641ccf | 235 | * Set the slaves in the current bond. |
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 | ||
dec1e90e | 329 | if (!list_empty(&bond->slave_list)) { |
4a8bb7e2 VF |
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 | 365 | * Show and set the bonding transmit hash method. |
b76cdba9 | 366 | */ |
43cb76d9 GKH |
367 | static ssize_t bonding_show_xmit_hash(struct device *d, |
368 | struct device_attribute *attr, | |
369 | char *buf) | |
b76cdba9 | 370 | { |
43cb76d9 | 371 | struct bonding *bond = to_bond(d); |
b76cdba9 | 372 | |
8e4b9329 WF |
373 | return sprintf(buf, "%s %d\n", |
374 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
375 | bond->params.xmit_policy); | |
b76cdba9 MW |
376 | } |
377 | ||
43cb76d9 GKH |
378 | static ssize_t bonding_store_xmit_hash(struct device *d, |
379 | struct device_attribute *attr, | |
380 | const char *buf, size_t count) | |
b76cdba9 MW |
381 | { |
382 | int new_value, ret = count; | |
43cb76d9 | 383 | struct bonding *bond = to_bond(d); |
b76cdba9 | 384 | |
ece95f7f | 385 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 386 | if (new_value < 0) { |
a4aee5c8 | 387 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
388 | bond->dev->name, |
389 | (int)strlen(buf) - 1, buf); | |
390 | ret = -EINVAL; | |
b76cdba9 MW |
391 | } else { |
392 | bond->params.xmit_policy = new_value; | |
393 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 | 394 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
395 | bond->dev->name, |
396 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 | 397 | } |
53edee2c | 398 | |
b76cdba9 MW |
399 | return ret; |
400 | } | |
3d632c3f SH |
401 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
402 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 403 | |
f5b2b966 JV |
404 | /* |
405 | * Show and set arp_validate. | |
406 | */ | |
43cb76d9 GKH |
407 | static ssize_t bonding_show_arp_validate(struct device *d, |
408 | struct device_attribute *attr, | |
409 | char *buf) | |
f5b2b966 | 410 | { |
43cb76d9 | 411 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
412 | |
413 | return sprintf(buf, "%s %d\n", | |
414 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 415 | bond->params.arp_validate); |
f5b2b966 JV |
416 | } |
417 | ||
43cb76d9 GKH |
418 | static ssize_t bonding_store_arp_validate(struct device *d, |
419 | struct device_attribute *attr, | |
420 | const char *buf, size_t count) | |
f5b2b966 JV |
421 | { |
422 | int new_value; | |
43cb76d9 | 423 | struct bonding *bond = to_bond(d); |
f5b2b966 | 424 | |
ece95f7f | 425 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 426 | if (new_value < 0) { |
a4aee5c8 | 427 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 JV |
428 | bond->dev->name, buf); |
429 | return -EINVAL; | |
430 | } | |
431 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
a4aee5c8 | 432 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 JV |
433 | bond->dev->name); |
434 | return -EINVAL; | |
435 | } | |
a4aee5c8 JP |
436 | pr_info("%s: setting arp_validate to %s (%d).\n", |
437 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
438 | new_value); | |
f5b2b966 | 439 | |
f5b2b966 JV |
440 | bond->params.arp_validate = new_value; |
441 | ||
442 | return count; | |
443 | } | |
444 | ||
3d632c3f SH |
445 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
446 | bonding_store_arp_validate); | |
8599b52e VF |
447 | /* |
448 | * Show and set arp_all_targets. | |
449 | */ | |
450 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
451 | struct device_attribute *attr, | |
452 | char *buf) | |
453 | { | |
454 | struct bonding *bond = to_bond(d); | |
455 | int value = bond->params.arp_all_targets; | |
456 | ||
457 | return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename, | |
458 | value); | |
459 | } | |
460 | ||
461 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
462 | struct device_attribute *attr, | |
463 | const char *buf, size_t count) | |
464 | { | |
465 | struct bonding *bond = to_bond(d); | |
466 | int new_value; | |
467 | ||
468 | new_value = bond_parse_parm(buf, arp_all_targets_tbl); | |
469 | if (new_value < 0) { | |
470 | pr_err("%s: Ignoring invalid arp_all_targets value %s\n", | |
471 | bond->dev->name, buf); | |
472 | return -EINVAL; | |
473 | } | |
474 | pr_info("%s: setting arp_all_targets to %s (%d).\n", | |
475 | bond->dev->name, arp_all_targets_tbl[new_value].modename, | |
476 | new_value); | |
477 | ||
478 | bond->params.arp_all_targets = new_value; | |
479 | ||
480 | return count; | |
481 | } | |
482 | ||
483 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
484 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 485 | |
dd957c57 JV |
486 | /* |
487 | * Show and store fail_over_mac. User only allowed to change the | |
488 | * value when there are no slaves. | |
489 | */ | |
3d632c3f SH |
490 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
491 | struct device_attribute *attr, | |
492 | char *buf) | |
dd957c57 JV |
493 | { |
494 | struct bonding *bond = to_bond(d); | |
495 | ||
3915c1e8 JV |
496 | return sprintf(buf, "%s %d\n", |
497 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
498 | bond->params.fail_over_mac); | |
dd957c57 JV |
499 | } |
500 | ||
3d632c3f SH |
501 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
502 | struct device_attribute *attr, | |
503 | const char *buf, size_t count) | |
dd957c57 | 504 | { |
9402b746 | 505 | int new_value, ret = count; |
dd957c57 JV |
506 | struct bonding *bond = to_bond(d); |
507 | ||
9402b746 | 508 | if (!rtnl_trylock()) |
509 | return restart_syscall(); | |
510 | ||
dec1e90e | 511 | if (!list_empty(&bond->slave_list)) { |
a4aee5c8 | 512 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 513 | bond->dev->name); |
9402b746 | 514 | ret = -EPERM; |
515 | goto out; | |
dd957c57 JV |
516 | } |
517 | ||
3915c1e8 JV |
518 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
519 | if (new_value < 0) { | |
a4aee5c8 | 520 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 | 521 | bond->dev->name, buf); |
9402b746 | 522 | ret = -EINVAL; |
523 | goto out; | |
dd957c57 JV |
524 | } |
525 | ||
3915c1e8 | 526 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
527 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
528 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
529 | new_value); | |
3915c1e8 | 530 | |
9402b746 | 531 | out: |
532 | rtnl_unlock(); | |
533 | return ret; | |
dd957c57 JV |
534 | } |
535 | ||
3d632c3f SH |
536 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
537 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 538 | |
b76cdba9 MW |
539 | /* |
540 | * Show and set the arp timer interval. There are two tricky bits | |
541 | * here. First, if ARP monitoring is activated, then we must disable | |
542 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
543 | * start it. | |
544 | */ | |
43cb76d9 GKH |
545 | static ssize_t bonding_show_arp_interval(struct device *d, |
546 | struct device_attribute *attr, | |
547 | char *buf) | |
b76cdba9 | 548 | { |
43cb76d9 | 549 | struct bonding *bond = to_bond(d); |
b76cdba9 | 550 | |
7bd46508 | 551 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
552 | } |
553 | ||
43cb76d9 GKH |
554 | static ssize_t bonding_store_arp_interval(struct device *d, |
555 | struct device_attribute *attr, | |
556 | const char *buf, size_t count) | |
b76cdba9 MW |
557 | { |
558 | int new_value, ret = count; | |
43cb76d9 | 559 | struct bonding *bond = to_bond(d); |
b76cdba9 | 560 | |
fbb0c41b | 561 | if (!rtnl_trylock()) |
562 | return restart_syscall(); | |
b76cdba9 | 563 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 564 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
565 | bond->dev->name); |
566 | ret = -EINVAL; | |
567 | goto out; | |
568 | } | |
569 | if (new_value < 0) { | |
1bc7db16 | 570 | pr_err("%s: Invalid arp_interval value %d not in range 0-%d; rejected.\n", |
b76cdba9 MW |
571 | bond->dev->name, new_value, INT_MAX); |
572 | ret = -EINVAL; | |
573 | goto out; | |
574 | } | |
c5cb002f AG |
575 | if (bond->params.mode == BOND_MODE_ALB || |
576 | bond->params.mode == BOND_MODE_TLB) { | |
577 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", | |
578 | bond->dev->name, bond->dev->name); | |
579 | ret = -EINVAL; | |
580 | goto out; | |
581 | } | |
a4aee5c8 JP |
582 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
583 | bond->dev->name, new_value); | |
b76cdba9 | 584 | bond->params.arp_interval = new_value; |
1bc7db16 | 585 | if (new_value) { |
586 | if (bond->params.miimon) { | |
587 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
588 | bond->dev->name, bond->dev->name); | |
589 | bond->params.miimon = 0; | |
590 | } | |
591 | if (!bond->params.arp_targets[0]) | |
592 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
593 | bond->dev->name); | |
b76cdba9 MW |
594 | } |
595 | if (bond->dev->flags & IFF_UP) { | |
596 | /* If the interface is up, we may need to fire off | |
597 | * the ARP timer. If the interface is down, the | |
598 | * timer will get fired off when the open function | |
599 | * is called. | |
600 | */ | |
1bc7db16 | 601 | if (!new_value) { |
602 | cancel_delayed_work_sync(&bond->arp_work); | |
603 | } else { | |
604 | cancel_delayed_work_sync(&bond->mii_work); | |
605 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
606 | } | |
b76cdba9 | 607 | } |
b76cdba9 | 608 | out: |
fbb0c41b | 609 | rtnl_unlock(); |
b76cdba9 MW |
610 | return ret; |
611 | } | |
3d632c3f SH |
612 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
613 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
614 | |
615 | /* | |
616 | * Show and set the arp targets. | |
617 | */ | |
43cb76d9 GKH |
618 | static ssize_t bonding_show_arp_targets(struct device *d, |
619 | struct device_attribute *attr, | |
620 | char *buf) | |
b76cdba9 MW |
621 | { |
622 | int i, res = 0; | |
43cb76d9 | 623 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
624 | |
625 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
626 | if (bond->params.arp_targets[i]) | |
63779436 HH |
627 | res += sprintf(buf + res, "%pI4 ", |
628 | &bond->params.arp_targets[i]); | |
b76cdba9 | 629 | } |
1dcdcd69 WF |
630 | if (res) |
631 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
632 | return res; |
633 | } | |
634 | ||
43cb76d9 GKH |
635 | static ssize_t bonding_store_arp_targets(struct device *d, |
636 | struct device_attribute *attr, | |
637 | const char *buf, size_t count) | |
b76cdba9 | 638 | { |
43cb76d9 | 639 | struct bonding *bond = to_bond(d); |
8599b52e VF |
640 | struct slave *slave; |
641 | __be32 newtarget, *targets; | |
642 | unsigned long *targets_rx; | |
643 | int ind, i, j, ret = -EINVAL; | |
b76cdba9 MW |
644 | |
645 | targets = bond->params.arp_targets; | |
646 | newtarget = in_aton(buf + 1); | |
647 | /* look for adds */ | |
648 | if (buf[0] == '+') { | |
d3bb52b0 | 649 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 650 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 651 | bond->dev->name, &newtarget); |
b76cdba9 MW |
652 | goto out; |
653 | } | |
87a7b84b VF |
654 | |
655 | if (bond_get_targets_ip(targets, newtarget) != -1) { /* dup */ | |
656 | pr_err("%s: ARP target %pI4 is already present\n", | |
657 | bond->dev->name, &newtarget); | |
658 | goto out; | |
b76cdba9 | 659 | } |
87a7b84b | 660 | |
8599b52e VF |
661 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ |
662 | if (ind == -1) { | |
a4aee5c8 | 663 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 | 664 | bond->dev->name); |
b76cdba9 MW |
665 | goto out; |
666 | } | |
667 | ||
87a7b84b VF |
668 | pr_info("%s: adding ARP target %pI4.\n", bond->dev->name, |
669 | &newtarget); | |
8599b52e VF |
670 | /* not to race with bond_arp_rcv */ |
671 | write_lock_bh(&bond->lock); | |
dec1e90e | 672 | bond_for_each_slave(bond, slave) |
8599b52e VF |
673 | slave->target_last_arp_rx[ind] = jiffies; |
674 | targets[ind] = newtarget; | |
675 | write_unlock_bh(&bond->lock); | |
3d632c3f | 676 | } else if (buf[0] == '-') { |
d3bb52b0 | 677 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 678 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 679 | bond->dev->name, &newtarget); |
b76cdba9 MW |
680 | goto out; |
681 | } | |
682 | ||
8599b52e VF |
683 | ind = bond_get_targets_ip(targets, newtarget); |
684 | if (ind == -1) { | |
685 | pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", | |
a4aee5c8 | 686 | bond->dev->name, &newtarget); |
b76cdba9 MW |
687 | goto out; |
688 | } | |
87a7b84b | 689 | |
8599b52e VF |
690 | if (ind == 0 && !targets[1] && bond->params.arp_interval) |
691 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
692 | bond->dev->name); | |
693 | ||
87a7b84b VF |
694 | pr_info("%s: removing ARP target %pI4.\n", bond->dev->name, |
695 | &newtarget); | |
8599b52e VF |
696 | |
697 | write_lock_bh(&bond->lock); | |
dec1e90e | 698 | bond_for_each_slave(bond, slave) { |
8599b52e VF |
699 | targets_rx = slave->target_last_arp_rx; |
700 | j = ind; | |
701 | for (; (j < BOND_MAX_ARP_TARGETS-1) && targets[j+1]; j++) | |
702 | targets_rx[j] = targets_rx[j+1]; | |
703 | targets_rx[j] = 0; | |
704 | } | |
705 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
87a7b84b VF |
706 | targets[i] = targets[i+1]; |
707 | targets[i] = 0; | |
8599b52e | 708 | write_unlock_bh(&bond->lock); |
3d632c3f | 709 | } else { |
a4aee5c8 JP |
710 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
711 | bond->dev->name); | |
b76cdba9 MW |
712 | ret = -EPERM; |
713 | goto out; | |
714 | } | |
715 | ||
87a7b84b | 716 | ret = count; |
b76cdba9 MW |
717 | out: |
718 | return ret; | |
719 | } | |
43cb76d9 | 720 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
721 | |
722 | /* | |
723 | * Show and set the up and down delays. These must be multiples of the | |
724 | * MII monitoring value, and are stored internally as the multiplier. | |
725 | * Thus, we must translate to MS for the real world. | |
726 | */ | |
43cb76d9 GKH |
727 | static ssize_t bonding_show_downdelay(struct device *d, |
728 | struct device_attribute *attr, | |
729 | char *buf) | |
b76cdba9 | 730 | { |
43cb76d9 | 731 | struct bonding *bond = to_bond(d); |
b76cdba9 | 732 | |
7bd46508 | 733 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
734 | } |
735 | ||
43cb76d9 GKH |
736 | static ssize_t bonding_store_downdelay(struct device *d, |
737 | struct device_attribute *attr, | |
738 | const char *buf, size_t count) | |
b76cdba9 MW |
739 | { |
740 | int new_value, ret = count; | |
43cb76d9 | 741 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
742 | |
743 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 744 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
745 | bond->dev->name); |
746 | ret = -EPERM; | |
747 | goto out; | |
748 | } | |
749 | ||
750 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 751 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
752 | ret = -EINVAL; |
753 | goto out; | |
754 | } | |
755 | if (new_value < 0) { | |
a4aee5c8 | 756 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 757 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
758 | ret = -EINVAL; |
759 | goto out; | |
760 | } else { | |
761 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 762 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
763 | bond->dev->name, new_value, |
764 | bond->params.miimon, | |
765 | (new_value / bond->params.miimon) * | |
766 | bond->params.miimon); | |
b76cdba9 MW |
767 | } |
768 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
769 | pr_info("%s: Setting down delay to %d.\n", |
770 | bond->dev->name, | |
771 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
772 | |
773 | } | |
774 | ||
775 | out: | |
776 | return ret; | |
777 | } | |
3d632c3f SH |
778 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
779 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 780 | |
43cb76d9 GKH |
781 | static ssize_t bonding_show_updelay(struct device *d, |
782 | struct device_attribute *attr, | |
783 | char *buf) | |
b76cdba9 | 784 | { |
43cb76d9 | 785 | struct bonding *bond = to_bond(d); |
b76cdba9 | 786 | |
7bd46508 | 787 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
788 | |
789 | } | |
790 | ||
43cb76d9 GKH |
791 | static ssize_t bonding_store_updelay(struct device *d, |
792 | struct device_attribute *attr, | |
793 | const char *buf, size_t count) | |
b76cdba9 MW |
794 | { |
795 | int new_value, ret = count; | |
43cb76d9 | 796 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
797 | |
798 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 799 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
800 | bond->dev->name); |
801 | ret = -EPERM; | |
802 | goto out; | |
803 | } | |
804 | ||
805 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 806 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
807 | bond->dev->name); |
808 | ret = -EINVAL; | |
809 | goto out; | |
810 | } | |
811 | if (new_value < 0) { | |
1bc7db16 | 812 | pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n", |
813 | bond->dev->name, new_value, 0, INT_MAX); | |
b76cdba9 MW |
814 | ret = -EINVAL; |
815 | goto out; | |
816 | } else { | |
817 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 818 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
819 | bond->dev->name, new_value, |
820 | bond->params.miimon, | |
821 | (new_value / bond->params.miimon) * | |
822 | bond->params.miimon); | |
b76cdba9 MW |
823 | } |
824 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
825 | pr_info("%s: Setting up delay to %d.\n", |
826 | bond->dev->name, | |
827 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
828 | } |
829 | ||
830 | out: | |
831 | return ret; | |
832 | } | |
3d632c3f SH |
833 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
834 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
835 | |
836 | /* | |
837 | * Show and set the LACP interval. Interface must be down, and the mode | |
838 | * must be set to 802.3ad mode. | |
839 | */ | |
43cb76d9 GKH |
840 | static ssize_t bonding_show_lacp(struct device *d, |
841 | struct device_attribute *attr, | |
842 | char *buf) | |
b76cdba9 | 843 | { |
43cb76d9 | 844 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
845 | |
846 | return sprintf(buf, "%s %d\n", | |
847 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 848 | bond->params.lacp_fast); |
b76cdba9 MW |
849 | } |
850 | ||
43cb76d9 GKH |
851 | static ssize_t bonding_store_lacp(struct device *d, |
852 | struct device_attribute *attr, | |
853 | const char *buf, size_t count) | |
b76cdba9 MW |
854 | { |
855 | int new_value, ret = count; | |
43cb76d9 | 856 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
857 | |
858 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 859 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
860 | bond->dev->name); |
861 | ret = -EPERM; | |
862 | goto out; | |
863 | } | |
864 | ||
865 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 866 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
867 | bond->dev->name); |
868 | ret = -EPERM; | |
869 | goto out; | |
870 | } | |
871 | ||
ece95f7f | 872 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
873 | |
874 | if ((new_value == 1) || (new_value == 0)) { | |
875 | bond->params.lacp_fast = new_value; | |
ba824a8b | 876 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 877 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
878 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
879 | new_value); | |
b76cdba9 | 880 | } else { |
a4aee5c8 | 881 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 882 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
883 | ret = -EINVAL; |
884 | } | |
885 | out: | |
886 | return ret; | |
887 | } | |
3d632c3f SH |
888 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
889 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 890 | |
655f8919 | 891 | static ssize_t bonding_show_min_links(struct device *d, |
892 | struct device_attribute *attr, | |
893 | char *buf) | |
894 | { | |
895 | struct bonding *bond = to_bond(d); | |
896 | ||
897 | return sprintf(buf, "%d\n", bond->params.min_links); | |
898 | } | |
899 | ||
900 | static ssize_t bonding_store_min_links(struct device *d, | |
901 | struct device_attribute *attr, | |
902 | const char *buf, size_t count) | |
903 | { | |
904 | struct bonding *bond = to_bond(d); | |
905 | int ret; | |
906 | unsigned int new_value; | |
907 | ||
908 | ret = kstrtouint(buf, 0, &new_value); | |
909 | if (ret < 0) { | |
910 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
911 | bond->dev->name, buf); | |
912 | return ret; | |
913 | } | |
914 | ||
915 | pr_info("%s: Setting min links value to %u\n", | |
916 | bond->dev->name, new_value); | |
917 | bond->params.min_links = new_value; | |
918 | return count; | |
919 | } | |
920 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
921 | bonding_show_min_links, bonding_store_min_links); | |
922 | ||
fd989c83 JV |
923 | static ssize_t bonding_show_ad_select(struct device *d, |
924 | struct device_attribute *attr, | |
925 | char *buf) | |
926 | { | |
927 | struct bonding *bond = to_bond(d); | |
928 | ||
929 | return sprintf(buf, "%s %d\n", | |
930 | ad_select_tbl[bond->params.ad_select].modename, | |
931 | bond->params.ad_select); | |
932 | } | |
933 | ||
934 | ||
935 | static ssize_t bonding_store_ad_select(struct device *d, | |
936 | struct device_attribute *attr, | |
937 | const char *buf, size_t count) | |
938 | { | |
939 | int new_value, ret = count; | |
940 | struct bonding *bond = to_bond(d); | |
941 | ||
942 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
943 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
944 | bond->dev->name); | |
fd989c83 JV |
945 | ret = -EPERM; |
946 | goto out; | |
947 | } | |
948 | ||
949 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
950 | ||
951 | if (new_value != -1) { | |
952 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
953 | pr_info("%s: Setting ad_select to %s (%d).\n", |
954 | bond->dev->name, ad_select_tbl[new_value].modename, | |
955 | new_value); | |
fd989c83 | 956 | } else { |
a4aee5c8 | 957 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
958 | bond->dev->name, (int)strlen(buf) - 1, buf); |
959 | ret = -EINVAL; | |
960 | } | |
961 | out: | |
962 | return ret; | |
963 | } | |
3d632c3f SH |
964 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
965 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 966 | |
ad246c99 BH |
967 | /* |
968 | * Show and set the number of peer notifications to send after a failover event. | |
969 | */ | |
970 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
971 | struct device_attribute *attr, | |
972 | char *buf) | |
973 | { | |
974 | struct bonding *bond = to_bond(d); | |
975 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
976 | } | |
977 | ||
978 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
979 | struct device_attribute *attr, | |
980 | const char *buf, size_t count) | |
981 | { | |
982 | struct bonding *bond = to_bond(d); | |
983 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
984 | return err ? err : count; | |
985 | } | |
986 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
987 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
988 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
989 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
990 | ||
b76cdba9 MW |
991 | /* |
992 | * Show and set the MII monitor interval. There are two tricky bits | |
993 | * here. First, if MII monitoring is activated, then we must disable | |
994 | * ARP monitoring. Second, if the timer isn't running, we must | |
995 | * start it. | |
996 | */ | |
43cb76d9 GKH |
997 | static ssize_t bonding_show_miimon(struct device *d, |
998 | struct device_attribute *attr, | |
999 | char *buf) | |
b76cdba9 | 1000 | { |
43cb76d9 | 1001 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1002 | |
7bd46508 | 1003 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
1004 | } |
1005 | ||
43cb76d9 GKH |
1006 | static ssize_t bonding_store_miimon(struct device *d, |
1007 | struct device_attribute *attr, | |
1008 | const char *buf, size_t count) | |
b76cdba9 MW |
1009 | { |
1010 | int new_value, ret = count; | |
43cb76d9 | 1011 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1012 | |
fbb0c41b | 1013 | if (!rtnl_trylock()) |
1014 | return restart_syscall(); | |
b76cdba9 | 1015 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 1016 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
1017 | bond->dev->name); |
1018 | ret = -EINVAL; | |
1019 | goto out; | |
1020 | } | |
1021 | if (new_value < 0) { | |
a4aee5c8 | 1022 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 1023 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
1024 | ret = -EINVAL; |
1025 | goto out; | |
1bc7db16 | 1026 | } |
1027 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
1028 | bond->dev->name, new_value); | |
1029 | bond->params.miimon = new_value; | |
1030 | if (bond->params.updelay) | |
1031 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
1032 | bond->dev->name, | |
1033 | bond->params.updelay * bond->params.miimon); | |
1034 | if (bond->params.downdelay) | |
1035 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
1036 | bond->dev->name, | |
1037 | bond->params.downdelay * bond->params.miimon); | |
1038 | if (new_value && bond->params.arp_interval) { | |
1039 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", | |
1040 | bond->dev->name); | |
1041 | bond->params.arp_interval = 0; | |
1042 | if (bond->params.arp_validate) | |
1043 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
1044 | } | |
1045 | if (bond->dev->flags & IFF_UP) { | |
1046 | /* If the interface is up, we may need to fire off | |
1047 | * the MII timer. If the interface is down, the | |
1048 | * timer will get fired off when the open function | |
1049 | * is called. | |
1050 | */ | |
1051 | if (!new_value) { | |
1052 | cancel_delayed_work_sync(&bond->mii_work); | |
1053 | } else { | |
fbb0c41b | 1054 | cancel_delayed_work_sync(&bond->arp_work); |
1055 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
b76cdba9 MW |
1056 | } |
1057 | } | |
1058 | out: | |
fbb0c41b | 1059 | rtnl_unlock(); |
b76cdba9 MW |
1060 | return ret; |
1061 | } | |
3d632c3f SH |
1062 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1063 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1064 | |
1065 | /* | |
1066 | * Show and set the primary slave. The store function is much | |
1067 | * simpler than bonding_store_slaves function because it only needs to | |
1068 | * handle one interface name. | |
1069 | * The bond must be a mode that supports a primary for this be | |
1070 | * set. | |
1071 | */ | |
43cb76d9 GKH |
1072 | static ssize_t bonding_show_primary(struct device *d, |
1073 | struct device_attribute *attr, | |
1074 | char *buf) | |
b76cdba9 MW |
1075 | { |
1076 | int count = 0; | |
43cb76d9 | 1077 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1078 | |
1079 | if (bond->primary_slave) | |
7bd46508 | 1080 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1081 | |
1082 | return count; | |
1083 | } | |
1084 | ||
43cb76d9 GKH |
1085 | static ssize_t bonding_store_primary(struct device *d, |
1086 | struct device_attribute *attr, | |
1087 | const char *buf, size_t count) | |
b76cdba9 | 1088 | { |
43cb76d9 | 1089 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1090 | char ifname[IFNAMSIZ]; |
dec1e90e | 1091 | struct slave *slave; |
b76cdba9 | 1092 | |
496a60cd EB |
1093 | if (!rtnl_trylock()) |
1094 | return restart_syscall(); | |
e843fa50 | 1095 | block_netpoll_tx(); |
e934dd78 JV |
1096 | read_lock(&bond->lock); |
1097 | write_lock_bh(&bond->curr_slave_lock); | |
1098 | ||
b76cdba9 | 1099 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1100 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1101 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1102 | goto out; |
1103 | } | |
b76cdba9 | 1104 | |
eb6e98a1 | 1105 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1106 | |
f4bb2e9c AG |
1107 | /* check to see if we are clearing primary */ |
1108 | if (!strlen(ifname) || buf[0] == '\n') { | |
1109 | pr_info("%s: Setting primary slave to None.\n", | |
1110 | bond->dev->name); | |
1111 | bond->primary_slave = NULL; | |
eb492f74 | 1112 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
f4bb2e9c AG |
1113 | bond_select_active_slave(bond); |
1114 | goto out; | |
1115 | } | |
1116 | ||
dec1e90e | 1117 | bond_for_each_slave(bond, slave) { |
f4bb2e9c AG |
1118 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
1119 | pr_info("%s: Setting %s as primary slave.\n", | |
1120 | bond->dev->name, slave->dev->name); | |
1121 | bond->primary_slave = slave; | |
1122 | strcpy(bond->params.primary, slave->dev->name); | |
1123 | bond_select_active_slave(bond); | |
1124 | goto out; | |
b76cdba9 MW |
1125 | } |
1126 | } | |
f4bb2e9c | 1127 | |
8a93664d WP |
1128 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1129 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1130 | ||
1131 | pr_info("%s: Recording %s as primary, " | |
1132 | "but it has not been enslaved to %s yet.\n", | |
1133 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1134 | out: |
e934dd78 JV |
1135 | write_unlock_bh(&bond->curr_slave_lock); |
1136 | read_unlock(&bond->lock); | |
e843fa50 | 1137 | unblock_netpoll_tx(); |
6603a6f2 JV |
1138 | rtnl_unlock(); |
1139 | ||
b76cdba9 MW |
1140 | return count; |
1141 | } | |
3d632c3f SH |
1142 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1143 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1144 | |
a549952a JP |
1145 | /* |
1146 | * Show and set the primary_reselect flag. | |
1147 | */ | |
1148 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1149 | struct device_attribute *attr, | |
1150 | char *buf) | |
1151 | { | |
1152 | struct bonding *bond = to_bond(d); | |
1153 | ||
1154 | return sprintf(buf, "%s %d\n", | |
1155 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1156 | bond->params.primary_reselect); | |
1157 | } | |
1158 | ||
1159 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1160 | struct device_attribute *attr, | |
1161 | const char *buf, size_t count) | |
1162 | { | |
1163 | int new_value, ret = count; | |
1164 | struct bonding *bond = to_bond(d); | |
1165 | ||
1166 | if (!rtnl_trylock()) | |
1167 | return restart_syscall(); | |
1168 | ||
1169 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1170 | if (new_value < 0) { | |
a4aee5c8 | 1171 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1172 | bond->dev->name, |
1173 | (int) strlen(buf) - 1, buf); | |
1174 | ret = -EINVAL; | |
1175 | goto out; | |
1176 | } | |
1177 | ||
1178 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1179 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1180 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1181 | new_value); | |
1182 | ||
e843fa50 | 1183 | block_netpoll_tx(); |
a549952a JP |
1184 | read_lock(&bond->lock); |
1185 | write_lock_bh(&bond->curr_slave_lock); | |
1186 | bond_select_active_slave(bond); | |
1187 | write_unlock_bh(&bond->curr_slave_lock); | |
1188 | read_unlock(&bond->lock); | |
e843fa50 | 1189 | unblock_netpoll_tx(); |
a549952a JP |
1190 | out: |
1191 | rtnl_unlock(); | |
1192 | return ret; | |
1193 | } | |
1194 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1195 | bonding_show_primary_reselect, | |
1196 | bonding_store_primary_reselect); | |
1197 | ||
b76cdba9 MW |
1198 | /* |
1199 | * Show and set the use_carrier flag. | |
1200 | */ | |
43cb76d9 GKH |
1201 | static ssize_t bonding_show_carrier(struct device *d, |
1202 | struct device_attribute *attr, | |
1203 | char *buf) | |
b76cdba9 | 1204 | { |
43cb76d9 | 1205 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1206 | |
7bd46508 | 1207 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1208 | } |
1209 | ||
43cb76d9 GKH |
1210 | static ssize_t bonding_store_carrier(struct device *d, |
1211 | struct device_attribute *attr, | |
1212 | const char *buf, size_t count) | |
b76cdba9 MW |
1213 | { |
1214 | int new_value, ret = count; | |
43cb76d9 | 1215 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1216 | |
1217 | ||
1218 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1219 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1220 | bond->dev->name); |
1221 | ret = -EINVAL; | |
1222 | goto out; | |
1223 | } | |
1224 | if ((new_value == 0) || (new_value == 1)) { | |
1225 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1226 | pr_info("%s: Setting use_carrier to %d.\n", |
1227 | bond->dev->name, new_value); | |
b76cdba9 | 1228 | } else { |
a4aee5c8 JP |
1229 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1230 | bond->dev->name, new_value); | |
b76cdba9 MW |
1231 | } |
1232 | out: | |
672bda33 | 1233 | return ret; |
b76cdba9 | 1234 | } |
3d632c3f SH |
1235 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1236 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1237 | |
1238 | ||
1239 | /* | |
1240 | * Show and set currently active_slave. | |
1241 | */ | |
43cb76d9 GKH |
1242 | static ssize_t bonding_show_active_slave(struct device *d, |
1243 | struct device_attribute *attr, | |
1244 | char *buf) | |
b76cdba9 MW |
1245 | { |
1246 | struct slave *curr; | |
43cb76d9 | 1247 | struct bonding *bond = to_bond(d); |
16cd0160 | 1248 | int count = 0; |
b76cdba9 | 1249 | |
b76cdba9 MW |
1250 | read_lock(&bond->curr_slave_lock); |
1251 | curr = bond->curr_active_slave; | |
1252 | read_unlock(&bond->curr_slave_lock); | |
1253 | ||
1254 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1255 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1256 | return count; |
1257 | } | |
1258 | ||
43cb76d9 GKH |
1259 | static ssize_t bonding_store_active_slave(struct device *d, |
1260 | struct device_attribute *attr, | |
1261 | const char *buf, size_t count) | |
b76cdba9 | 1262 | { |
dec1e90e | 1263 | struct slave *slave, *old_active, *new_active; |
43cb76d9 | 1264 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1265 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1266 | |
496a60cd EB |
1267 | if (!rtnl_trylock()) |
1268 | return restart_syscall(); | |
e843fa50 | 1269 | |
dec1e90e | 1270 | old_active = new_active = NULL; |
e843fa50 | 1271 | block_netpoll_tx(); |
e934dd78 JV |
1272 | read_lock(&bond->lock); |
1273 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1274 | |
f4bb2e9c | 1275 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 | 1276 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f | 1277 | bond->dev->name, bond->dev->name, bond->params.mode); |
f4bb2e9c AG |
1278 | goto out; |
1279 | } | |
1280 | ||
c84e1590 | 1281 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c AG |
1282 | |
1283 | /* check to see if we are clearing active */ | |
1284 | if (!strlen(ifname) || buf[0] == '\n') { | |
1285 | pr_info("%s: Clearing current active slave.\n", | |
1286 | bond->dev->name); | |
1287 | bond->curr_active_slave = NULL; | |
1288 | bond_select_active_slave(bond); | |
1289 | goto out; | |
1290 | } | |
1291 | ||
dec1e90e | 1292 | bond_for_each_slave(bond, slave) { |
f4bb2e9c AG |
1293 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
1294 | old_active = bond->curr_active_slave; | |
1295 | new_active = slave; | |
1296 | if (new_active == old_active) { | |
1297 | /* do nothing */ | |
1298 | pr_info("%s: %s is already the current" | |
1299 | " active slave.\n", | |
1300 | bond->dev->name, | |
1301 | slave->dev->name); | |
1302 | goto out; | |
38c4916a | 1303 | } else { |
f4bb2e9c AG |
1304 | if ((new_active) && |
1305 | (old_active) && | |
1306 | (new_active->link == BOND_LINK_UP) && | |
1307 | IS_UP(new_active->dev)) { | |
1308 | pr_info("%s: Setting %s as active" | |
1309 | " slave.\n", | |
a4aee5c8 JP |
1310 | bond->dev->name, |
1311 | slave->dev->name); | |
f4bb2e9c AG |
1312 | bond_change_active_slave(bond, |
1313 | new_active); | |
38c4916a | 1314 | } else { |
f4bb2e9c AG |
1315 | pr_info("%s: Could not set %s as" |
1316 | " active slave; either %s is" | |
1317 | " down or the link is down.\n", | |
1318 | bond->dev->name, | |
1319 | slave->dev->name, | |
1320 | slave->dev->name); | |
b76cdba9 | 1321 | } |
f4bb2e9c | 1322 | goto out; |
b76cdba9 MW |
1323 | } |
1324 | } | |
b76cdba9 | 1325 | } |
f4bb2e9c AG |
1326 | |
1327 | pr_info("%s: Unable to set %.*s as active slave.\n", | |
1328 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
3d632c3f | 1329 | out: |
e934dd78 JV |
1330 | write_unlock_bh(&bond->curr_slave_lock); |
1331 | read_unlock(&bond->lock); | |
e843fa50 NH |
1332 | unblock_netpoll_tx(); |
1333 | ||
6603a6f2 JV |
1334 | rtnl_unlock(); |
1335 | ||
b76cdba9 MW |
1336 | return count; |
1337 | ||
1338 | } | |
3d632c3f SH |
1339 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1340 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1341 | |
1342 | ||
1343 | /* | |
1344 | * Show link status of the bond interface. | |
1345 | */ | |
43cb76d9 GKH |
1346 | static ssize_t bonding_show_mii_status(struct device *d, |
1347 | struct device_attribute *attr, | |
1348 | char *buf) | |
b76cdba9 MW |
1349 | { |
1350 | struct slave *curr; | |
43cb76d9 | 1351 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1352 | |
1353 | read_lock(&bond->curr_slave_lock); | |
1354 | curr = bond->curr_active_slave; | |
1355 | read_unlock(&bond->curr_slave_lock); | |
1356 | ||
3d632c3f | 1357 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1358 | } |
43cb76d9 | 1359 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1360 | |
b76cdba9 MW |
1361 | /* |
1362 | * Show current 802.3ad aggregator ID. | |
1363 | */ | |
43cb76d9 GKH |
1364 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1365 | struct device_attribute *attr, | |
1366 | char *buf) | |
b76cdba9 MW |
1367 | { |
1368 | int count = 0; | |
43cb76d9 | 1369 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1370 | |
1371 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1372 | struct ad_info ad_info; | |
3d632c3f | 1373 | count = sprintf(buf, "%d\n", |
318debd8 | 1374 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1375 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1376 | } |
b76cdba9 MW |
1377 | |
1378 | return count; | |
1379 | } | |
43cb76d9 | 1380 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1381 | |
1382 | ||
1383 | /* | |
1384 | * Show number of active 802.3ad ports. | |
1385 | */ | |
43cb76d9 GKH |
1386 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1387 | struct device_attribute *attr, | |
1388 | char *buf) | |
b76cdba9 MW |
1389 | { |
1390 | int count = 0; | |
43cb76d9 | 1391 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1392 | |
1393 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1394 | struct ad_info ad_info; | |
3d632c3f | 1395 | count = sprintf(buf, "%d\n", |
318debd8 | 1396 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1397 | ? 0 : ad_info.ports); |
b76cdba9 | 1398 | } |
b76cdba9 MW |
1399 | |
1400 | return count; | |
1401 | } | |
43cb76d9 | 1402 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1403 | |
1404 | ||
1405 | /* | |
1406 | * Show current 802.3ad actor key. | |
1407 | */ | |
43cb76d9 GKH |
1408 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1409 | struct device_attribute *attr, | |
1410 | char *buf) | |
b76cdba9 MW |
1411 | { |
1412 | int count = 0; | |
43cb76d9 | 1413 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1414 | |
1415 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1416 | struct ad_info ad_info; | |
3d632c3f | 1417 | count = sprintf(buf, "%d\n", |
318debd8 | 1418 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1419 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1420 | } |
b76cdba9 MW |
1421 | |
1422 | return count; | |
1423 | } | |
43cb76d9 | 1424 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1425 | |
1426 | ||
1427 | /* | |
1428 | * Show current 802.3ad partner key. | |
1429 | */ | |
43cb76d9 GKH |
1430 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1431 | struct device_attribute *attr, | |
1432 | char *buf) | |
b76cdba9 MW |
1433 | { |
1434 | int count = 0; | |
43cb76d9 | 1435 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1436 | |
1437 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1438 | struct ad_info ad_info; | |
3d632c3f | 1439 | count = sprintf(buf, "%d\n", |
318debd8 | 1440 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1441 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1442 | } |
b76cdba9 MW |
1443 | |
1444 | return count; | |
1445 | } | |
43cb76d9 | 1446 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1447 | |
1448 | ||
1449 | /* | |
1450 | * Show current 802.3ad partner mac. | |
1451 | */ | |
43cb76d9 GKH |
1452 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1453 | struct device_attribute *attr, | |
1454 | char *buf) | |
b76cdba9 MW |
1455 | { |
1456 | int count = 0; | |
43cb76d9 | 1457 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1458 | |
1459 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1460 | struct ad_info ad_info; | |
3d632c3f | 1461 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1462 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1463 | } |
b76cdba9 MW |
1464 | |
1465 | return count; | |
1466 | } | |
43cb76d9 | 1467 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1468 | |
bb1d9123 AG |
1469 | /* |
1470 | * Show the queue_ids of the slaves in the current bond. | |
1471 | */ | |
1472 | static ssize_t bonding_show_queue_id(struct device *d, | |
1473 | struct device_attribute *attr, | |
1474 | char *buf) | |
1475 | { | |
bb1d9123 | 1476 | struct bonding *bond = to_bond(d); |
dec1e90e | 1477 | struct slave *slave; |
1478 | int res = 0; | |
bb1d9123 AG |
1479 | |
1480 | if (!rtnl_trylock()) | |
1481 | return restart_syscall(); | |
1482 | ||
1483 | read_lock(&bond->lock); | |
dec1e90e | 1484 | bond_for_each_slave(bond, slave) { |
79236680 NP |
1485 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1486 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1487 | if ((PAGE_SIZE - res) > 10) |
1488 | res = PAGE_SIZE - 10; | |
1489 | res += sprintf(buf + res, "++more++ "); | |
1490 | break; | |
1491 | } | |
1492 | res += sprintf(buf + res, "%s:%d ", | |
1493 | slave->dev->name, slave->queue_id); | |
1494 | } | |
1495 | read_unlock(&bond->lock); | |
1496 | if (res) | |
1497 | buf[res-1] = '\n'; /* eat the leftover space */ | |
1498 | rtnl_unlock(); | |
dec1e90e | 1499 | |
bb1d9123 AG |
1500 | return res; |
1501 | } | |
1502 | ||
1503 | /* | |
1504 | * Set the queue_ids of the slaves in the current bond. The bond | |
1505 | * interface must be enslaved for this to work. | |
1506 | */ | |
1507 | static ssize_t bonding_store_queue_id(struct device *d, | |
1508 | struct device_attribute *attr, | |
1509 | const char *buffer, size_t count) | |
1510 | { | |
1511 | struct slave *slave, *update_slave; | |
1512 | struct bonding *bond = to_bond(d); | |
1513 | u16 qid; | |
dec1e90e | 1514 | int ret = count; |
bb1d9123 AG |
1515 | char *delim; |
1516 | struct net_device *sdev = NULL; | |
1517 | ||
1518 | if (!rtnl_trylock()) | |
1519 | return restart_syscall(); | |
1520 | ||
1521 | /* delim will point to queue id if successful */ | |
1522 | delim = strchr(buffer, ':'); | |
1523 | if (!delim) | |
1524 | goto err_no_cmd; | |
1525 | ||
1526 | /* | |
1527 | * Terminate string that points to device name and bump it | |
1528 | * up one, so we can read the queue id there. | |
1529 | */ | |
1530 | *delim = '\0'; | |
1531 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1532 | goto err_no_cmd; | |
1533 | ||
1534 | /* Check buffer length, valid ifname and queue id */ | |
1535 | if (strlen(buffer) > IFNAMSIZ || | |
1536 | !dev_valid_name(buffer) || | |
8a540ff9 | 1537 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1538 | goto err_no_cmd; |
1539 | ||
1540 | /* Get the pointer to that interface if it exists */ | |
1541 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1542 | if (!sdev) | |
1543 | goto err_no_cmd; | |
1544 | ||
1545 | read_lock(&bond->lock); | |
1546 | ||
1547 | /* Search for thes slave and check for duplicate qids */ | |
1548 | update_slave = NULL; | |
dec1e90e | 1549 | bond_for_each_slave(bond, slave) { |
bb1d9123 AG |
1550 | if (sdev == slave->dev) |
1551 | /* | |
1552 | * We don't need to check the matching | |
1553 | * slave for dups, since we're overwriting it | |
1554 | */ | |
1555 | update_slave = slave; | |
1556 | else if (qid && qid == slave->queue_id) { | |
1557 | goto err_no_cmd_unlock; | |
1558 | } | |
1559 | } | |
1560 | ||
1561 | if (!update_slave) | |
1562 | goto err_no_cmd_unlock; | |
1563 | ||
1564 | /* Actually set the qids for the slave */ | |
1565 | update_slave->queue_id = qid; | |
1566 | ||
1567 | read_unlock(&bond->lock); | |
1568 | out: | |
1569 | rtnl_unlock(); | |
1570 | return ret; | |
1571 | ||
1572 | err_no_cmd_unlock: | |
1573 | read_unlock(&bond->lock); | |
1574 | err_no_cmd: | |
1575 | pr_info("invalid input for queue_id set for %s.\n", | |
1576 | bond->dev->name); | |
1577 | ret = -EPERM; | |
1578 | goto out; | |
1579 | } | |
1580 | ||
1581 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1582 | bonding_store_queue_id); | |
1583 | ||
1584 | ||
ebd8e497 AG |
1585 | /* |
1586 | * Show and set the all_slaves_active flag. | |
1587 | */ | |
1588 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1589 | struct device_attribute *attr, | |
1590 | char *buf) | |
1591 | { | |
1592 | struct bonding *bond = to_bond(d); | |
1593 | ||
1594 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1595 | } | |
1596 | ||
1597 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1598 | struct device_attribute *attr, | |
1599 | const char *buf, size_t count) | |
1600 | { | |
ebd8e497 | 1601 | struct bonding *bond = to_bond(d); |
dec1e90e | 1602 | int new_value, ret = count; |
ebd8e497 AG |
1603 | struct slave *slave; |
1604 | ||
1605 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1606 | pr_err("%s: no all_slaves_active value specified.\n", | |
1607 | bond->dev->name); | |
1608 | ret = -EINVAL; | |
1609 | goto out; | |
1610 | } | |
1611 | ||
1612 | if (new_value == bond->params.all_slaves_active) | |
1613 | goto out; | |
1614 | ||
1615 | if ((new_value == 0) || (new_value == 1)) { | |
1616 | bond->params.all_slaves_active = new_value; | |
1617 | } else { | |
1618 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1619 | bond->dev->name, new_value); | |
1620 | ret = -EINVAL; | |
1621 | goto out; | |
1622 | } | |
b76cdba9 | 1623 | |
e196c0e5 | 1624 | read_lock(&bond->lock); |
dec1e90e | 1625 | bond_for_each_slave(bond, slave) { |
e30bc066 | 1626 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1627 | if (new_value) |
2d7011ca | 1628 | slave->inactive = 0; |
ebd8e497 | 1629 | else |
2d7011ca | 1630 | slave->inactive = 1; |
ebd8e497 AG |
1631 | } |
1632 | } | |
e196c0e5 | 1633 | read_unlock(&bond->lock); |
ebd8e497 | 1634 | out: |
672bda33 | 1635 | return ret; |
ebd8e497 AG |
1636 | } |
1637 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1638 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1639 | |
c2952c31 FL |
1640 | /* |
1641 | * Show and set the number of IGMP membership reports to send on link failure | |
1642 | */ | |
1643 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1644 | struct device_attribute *attr, |
1645 | char *buf) | |
c2952c31 FL |
1646 | { |
1647 | struct bonding *bond = to_bond(d); | |
1648 | ||
1649 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1650 | } | |
1651 | ||
1652 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1653 | struct device_attribute *attr, |
1654 | const char *buf, size_t count) | |
c2952c31 FL |
1655 | { |
1656 | int new_value, ret = count; | |
1657 | struct bonding *bond = to_bond(d); | |
1658 | ||
1659 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1660 | pr_err("%s: no resend_igmp value specified.\n", | |
1661 | bond->dev->name); | |
1662 | ret = -EINVAL; | |
1663 | goto out; | |
1664 | } | |
1665 | ||
94265cf5 | 1666 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1667 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1668 | bond->dev->name, new_value); | |
1669 | ret = -EINVAL; | |
1670 | goto out; | |
1671 | } | |
1672 | ||
1673 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1674 | bond->dev->name, new_value); | |
1675 | bond->params.resend_igmp = new_value; | |
1676 | out: | |
1677 | return ret; | |
1678 | } | |
1679 | ||
1680 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1681 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1682 | ||
b76cdba9 | 1683 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1684 | &dev_attr_slaves.attr, |
1685 | &dev_attr_mode.attr, | |
dd957c57 | 1686 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1687 | &dev_attr_arp_validate.attr, |
8599b52e | 1688 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1689 | &dev_attr_arp_interval.attr, |
1690 | &dev_attr_arp_ip_target.attr, | |
1691 | &dev_attr_downdelay.attr, | |
1692 | &dev_attr_updelay.attr, | |
1693 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1694 | &dev_attr_ad_select.attr, |
43cb76d9 | 1695 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1696 | &dev_attr_num_grat_arp.attr, |
1697 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1698 | &dev_attr_miimon.attr, |
1699 | &dev_attr_primary.attr, | |
a549952a | 1700 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1701 | &dev_attr_use_carrier.attr, |
1702 | &dev_attr_active_slave.attr, | |
1703 | &dev_attr_mii_status.attr, | |
1704 | &dev_attr_ad_aggregator.attr, | |
1705 | &dev_attr_ad_num_ports.attr, | |
1706 | &dev_attr_ad_actor_key.attr, | |
1707 | &dev_attr_ad_partner_key.attr, | |
1708 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1709 | &dev_attr_queue_id.attr, |
ebd8e497 | 1710 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1711 | &dev_attr_resend_igmp.attr, |
655f8919 | 1712 | &dev_attr_min_links.attr, |
b76cdba9 MW |
1713 | NULL, |
1714 | }; | |
1715 | ||
1716 | static struct attribute_group bonding_group = { | |
1717 | .name = "bonding", | |
1718 | .attrs = per_bond_attrs, | |
1719 | }; | |
1720 | ||
1721 | /* | |
1722 | * Initialize sysfs. This sets up the bonding_masters file in | |
1723 | * /sys/class/net. | |
1724 | */ | |
4c22400a | 1725 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1726 | { |
b8a9787e | 1727 | int ret; |
b76cdba9 | 1728 | |
4c22400a | 1729 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1730 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a EB |
1731 | |
1732 | ret = netdev_class_create_file(&bn->class_attr_bonding_masters); | |
877cbd36 JV |
1733 | /* |
1734 | * Permit multiple loads of the module by ignoring failures to | |
1735 | * create the bonding_masters sysfs file. Bonding devices | |
1736 | * created by second or subsequent loads of the module will | |
1737 | * not be listed in, or controllable by, bonding_masters, but | |
1738 | * will have the usual "bonding" sysfs directory. | |
1739 | * | |
1740 | * This is done to preserve backwards compatibility for | |
1741 | * initscripts/sysconfig, which load bonding multiple times to | |
1742 | * configure multiple bonding devices. | |
1743 | */ | |
1744 | if (ret == -EEXIST) { | |
38d2f38b | 1745 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1746 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1747 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1748 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1749 | class_attr_bonding_masters.attr.name); |
130aa61a | 1750 | ret = 0; |
877cbd36 | 1751 | } |
b76cdba9 MW |
1752 | |
1753 | return ret; | |
1754 | ||
1755 | } | |
1756 | ||
1757 | /* | |
1758 | * Remove /sys/class/net/bonding_masters. | |
1759 | */ | |
4c22400a | 1760 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1761 | { |
4c22400a | 1762 | netdev_class_remove_file(&bn->class_attr_bonding_masters); |
b76cdba9 MW |
1763 | } |
1764 | ||
1765 | /* | |
1766 | * Initialize sysfs for each bond. This sets up and registers | |
1767 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1768 | */ | |
6151b3d4 | 1769 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1770 | { |
6151b3d4 | 1771 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1772 | } |
1773 |