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/sysdev.h> |
30 | #include <linux/fs.h> | |
31 | #include <linux/types.h> | |
32 | #include <linux/string.h> | |
33 | #include <linux/netdevice.h> | |
34 | #include <linux/inetdevice.h> | |
35 | #include <linux/in.h> | |
36 | #include <linux/sysfs.h> | |
b76cdba9 MW |
37 | #include <linux/ctype.h> |
38 | #include <linux/inet.h> | |
39 | #include <linux/rtnetlink.h> | |
5c5129b5 | 40 | #include <linux/etherdevice.h> |
881d966b | 41 | #include <net/net_namespace.h> |
ec87fd3b EB |
42 | #include <net/netns/generic.h> |
43 | #include <linux/nsproxy.h> | |
b76cdba9 | 44 | |
b76cdba9 | 45 | #include "bonding.h" |
5a03cdb7 | 46 | |
3d632c3f | 47 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 48 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 49 | |
b76cdba9 MW |
50 | /* |
51 | * "show" function for the bond_masters attribute. | |
52 | * The class parameter is ignored. | |
53 | */ | |
28812fe1 AK |
54 | static ssize_t bonding_show_bonds(struct class *cls, |
55 | struct class_attribute *attr, | |
56 | char *buf) | |
b76cdba9 | 57 | { |
ec87fd3b EB |
58 | struct net *net = current->nsproxy->net_ns; |
59 | struct bond_net *bn = net_generic(net, bond_net_id); | |
b76cdba9 MW |
60 | int res = 0; |
61 | struct bonding *bond; | |
62 | ||
7e083840 | 63 | rtnl_lock(); |
b76cdba9 | 64 | |
ec87fd3b | 65 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
66 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
67 | /* not enough space for another interface name */ | |
68 | if ((PAGE_SIZE - res) > 10) | |
69 | res = PAGE_SIZE - 10; | |
b8843665 | 70 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
71 | break; |
72 | } | |
b8843665 | 73 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 74 | } |
1dcdcd69 WF |
75 | if (res) |
76 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
77 | |
78 | rtnl_unlock(); | |
b76cdba9 MW |
79 | return res; |
80 | } | |
81 | ||
ec87fd3b | 82 | static struct net_device *bond_get_by_name(struct net *net, const char *ifname) |
373500db | 83 | { |
ec87fd3b | 84 | struct bond_net *bn = net_generic(net, bond_net_id); |
373500db SH |
85 | struct bonding *bond; |
86 | ||
ec87fd3b | 87 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
88 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
89 | return bond->dev; | |
90 | } | |
91 | return NULL; | |
92 | } | |
93 | ||
b76cdba9 MW |
94 | /* |
95 | * "store" function for the bond_masters attribute. This is what | |
96 | * creates and deletes entire bonds. | |
97 | * | |
98 | * The class parameter is ignored. | |
99 | * | |
100 | */ | |
101 | ||
3d632c3f | 102 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 103 | struct class_attribute *attr, |
3d632c3f | 104 | const char *buffer, size_t count) |
b76cdba9 | 105 | { |
ec87fd3b | 106 | struct net *net = current->nsproxy->net_ns; |
b76cdba9 MW |
107 | char command[IFNAMSIZ + 1] = {0, }; |
108 | char *ifname; | |
027ea041 | 109 | int rv, res = count; |
b76cdba9 | 110 | |
b76cdba9 MW |
111 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
112 | ifname = command + 1; | |
113 | if ((strlen(command) <= 1) || | |
114 | !dev_valid_name(ifname)) | |
115 | goto err_no_cmd; | |
116 | ||
117 | if (command[0] == '+') { | |
a4aee5c8 | 118 | pr_info("%s is being created...\n", ifname); |
ec87fd3b | 119 | rv = bond_create(net, ifname); |
027ea041 | 120 | if (rv) { |
a4aee5c8 | 121 | pr_info("Bond creation failed.\n"); |
027ea041 | 122 | res = rv; |
b76cdba9 | 123 | } |
373500db SH |
124 | } else if (command[0] == '-') { |
125 | struct net_device *bond_dev; | |
b76cdba9 | 126 | |
027ea041 | 127 | rtnl_lock(); |
ec87fd3b | 128 | bond_dev = bond_get_by_name(net, ifname); |
373500db | 129 | if (bond_dev) { |
a4aee5c8 | 130 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
131 | unregister_netdevice(bond_dev); |
132 | } else { | |
a4aee5c8 | 133 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
134 | res = -ENODEV; |
135 | } | |
136 | rtnl_unlock(); | |
137 | } else | |
138 | goto err_no_cmd; | |
027ea041 | 139 | |
373500db SH |
140 | /* Always return either count or an error. If you return 0, you'll |
141 | * get called forever, which is bad. | |
142 | */ | |
143 | return res; | |
b76cdba9 MW |
144 | |
145 | err_no_cmd: | |
a4aee5c8 | 146 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 147 | return -EPERM; |
b76cdba9 | 148 | } |
373500db | 149 | |
b76cdba9 MW |
150 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
151 | static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO, | |
152 | bonding_show_bonds, bonding_store_bonds); | |
153 | ||
3d632c3f SH |
154 | int bond_create_slave_symlinks(struct net_device *master, |
155 | struct net_device *slave) | |
b76cdba9 MW |
156 | { |
157 | char linkname[IFNAMSIZ+7]; | |
158 | int ret = 0; | |
159 | ||
160 | /* first, create a link from the slave back to the master */ | |
43cb76d9 | 161 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
b76cdba9 MW |
162 | "master"); |
163 | if (ret) | |
164 | return ret; | |
165 | /* next, create a link from the master to the slave */ | |
3d632c3f | 166 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 167 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
b76cdba9 MW |
168 | linkname); |
169 | return ret; | |
170 | ||
171 | } | |
172 | ||
3d632c3f SH |
173 | void bond_destroy_slave_symlinks(struct net_device *master, |
174 | struct net_device *slave) | |
b76cdba9 MW |
175 | { |
176 | char linkname[IFNAMSIZ+7]; | |
177 | ||
43cb76d9 | 178 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
3d632c3f | 179 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 180 | sysfs_remove_link(&(master->dev.kobj), linkname); |
b76cdba9 MW |
181 | } |
182 | ||
183 | ||
184 | /* | |
185 | * Show the slaves in the current bond. | |
186 | */ | |
43cb76d9 GKH |
187 | static ssize_t bonding_show_slaves(struct device *d, |
188 | struct device_attribute *attr, char *buf) | |
b76cdba9 MW |
189 | { |
190 | struct slave *slave; | |
191 | int i, res = 0; | |
43cb76d9 | 192 | struct bonding *bond = to_bond(d); |
b76cdba9 | 193 | |
6603a6f2 | 194 | read_lock(&bond->lock); |
b76cdba9 MW |
195 | bond_for_each_slave(bond, slave, i) { |
196 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
197 | /* not enough space for another interface name */ | |
198 | if ((PAGE_SIZE - res) > 10) | |
199 | res = PAGE_SIZE - 10; | |
7bd46508 | 200 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
201 | break; |
202 | } | |
203 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
204 | } | |
6603a6f2 | 205 | read_unlock(&bond->lock); |
1dcdcd69 WF |
206 | if (res) |
207 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
208 | return res; |
209 | } | |
210 | ||
211 | /* | |
212 | * Set the slaves in the current bond. The bond interface must be | |
213 | * up for this to succeed. | |
214 | * This function is largely the same flow as bonding_update_bonds(). | |
215 | */ | |
43cb76d9 GKH |
216 | static ssize_t bonding_store_slaves(struct device *d, |
217 | struct device_attribute *attr, | |
218 | const char *buffer, size_t count) | |
b76cdba9 MW |
219 | { |
220 | char command[IFNAMSIZ + 1] = { 0, }; | |
221 | char *ifname; | |
64585909 | 222 | int i, res, ret = count; |
b76cdba9 | 223 | struct slave *slave; |
3418db7c | 224 | struct net_device *dev = NULL; |
43cb76d9 | 225 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
226 | |
227 | /* Quick sanity check -- is the bond interface up? */ | |
228 | if (!(bond->dev->flags & IFF_UP)) { | |
a4aee5c8 JP |
229 | pr_warning("%s: doing slave updates when interface is down.\n", |
230 | bond->dev->name); | |
b76cdba9 MW |
231 | } |
232 | ||
233 | /* Note: We can't hold bond->lock here, as bond_create grabs it. */ | |
234 | ||
496a60cd EB |
235 | if (!rtnl_trylock()) |
236 | return restart_syscall(); | |
027ea041 | 237 | |
b76cdba9 MW |
238 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
239 | ifname = command + 1; | |
240 | if ((strlen(command) <= 1) || | |
241 | !dev_valid_name(ifname)) | |
242 | goto err_no_cmd; | |
243 | ||
244 | if (command[0] == '+') { | |
245 | ||
3dd90905 | 246 | /* Got a slave name in ifname. */ |
b76cdba9 | 247 | |
ec87fd3b | 248 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
b76cdba9 | 249 | if (!dev) { |
a4aee5c8 JP |
250 | pr_info("%s: Interface %s does not exist!\n", |
251 | bond->dev->name, ifname); | |
373500db | 252 | ret = -ENODEV; |
b76cdba9 | 253 | goto out; |
373500db | 254 | } |
b76cdba9 | 255 | |
a4aee5c8 | 256 | pr_info("%s: Adding slave %s.\n", bond->dev->name, ifname); |
373500db | 257 | |
b76cdba9 MW |
258 | /* If this is the first slave, then we need to set |
259 | the master's hardware address to be the same as the | |
260 | slave's. */ | |
5c5129b5 | 261 | if (is_zero_ether_addr(bond->dev->dev_addr)) |
b76cdba9 MW |
262 | memcpy(bond->dev->dev_addr, dev->dev_addr, |
263 | dev->addr_len); | |
b76cdba9 | 264 | |
b76cdba9 | 265 | res = bond_enslave(bond->dev, dev); |
3d632c3f | 266 | if (res) |
b76cdba9 | 267 | ret = res; |
3d632c3f | 268 | |
b76cdba9 MW |
269 | goto out; |
270 | } | |
271 | ||
272 | if (command[0] == '-') { | |
273 | dev = NULL; | |
274 | bond_for_each_slave(bond, slave, i) | |
275 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
276 | dev = slave->dev; | |
277 | break; | |
278 | } | |
279 | if (dev) { | |
a4aee5c8 | 280 | pr_info("%s: Removing slave %s\n", |
b76cdba9 | 281 | bond->dev->name, dev->name); |
b15ba0fb JP |
282 | res = bond_release(bond->dev, dev); |
283 | if (res) | |
b76cdba9 | 284 | ret = res; |
3d632c3f | 285 | } else { |
a4aee5c8 JP |
286 | pr_err("unable to remove non-existent slave %s for bond %s.\n", |
287 | ifname, bond->dev->name); | |
b76cdba9 MW |
288 | ret = -ENODEV; |
289 | } | |
290 | goto out; | |
291 | } | |
292 | ||
293 | err_no_cmd: | |
a4aee5c8 JP |
294 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
295 | bond->dev->name); | |
b76cdba9 MW |
296 | ret = -EPERM; |
297 | ||
298 | out: | |
027ea041 | 299 | rtnl_unlock(); |
b76cdba9 MW |
300 | return ret; |
301 | } | |
302 | ||
3d632c3f SH |
303 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
304 | bonding_store_slaves); | |
b76cdba9 MW |
305 | |
306 | /* | |
307 | * Show and set the bonding mode. The bond interface must be down to | |
308 | * change the mode. | |
309 | */ | |
43cb76d9 GKH |
310 | static ssize_t bonding_show_mode(struct device *d, |
311 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 312 | { |
43cb76d9 | 313 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
314 | |
315 | return sprintf(buf, "%s %d\n", | |
316 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 317 | bond->params.mode); |
b76cdba9 MW |
318 | } |
319 | ||
43cb76d9 GKH |
320 | static ssize_t bonding_store_mode(struct device *d, |
321 | struct device_attribute *attr, | |
322 | const char *buf, size_t count) | |
b76cdba9 MW |
323 | { |
324 | int new_value, ret = count; | |
43cb76d9 | 325 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
326 | |
327 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
328 | pr_err("unable to update mode of %s because interface is up.\n", |
329 | bond->dev->name); | |
b76cdba9 MW |
330 | ret = -EPERM; |
331 | goto out; | |
332 | } | |
333 | ||
ece95f7f | 334 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 335 | if (new_value < 0) { |
a4aee5c8 JP |
336 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
337 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
338 | ret = -EINVAL; |
339 | goto out; | |
340 | } else { | |
8f903c70 JV |
341 | if (bond->params.mode == BOND_MODE_8023AD) |
342 | bond_unset_master_3ad_flags(bond); | |
343 | ||
344 | if (bond->params.mode == BOND_MODE_ALB) | |
345 | bond_unset_master_alb_flags(bond); | |
346 | ||
b76cdba9 MW |
347 | bond->params.mode = new_value; |
348 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 JP |
349 | pr_info("%s: setting mode to %s (%d).\n", |
350 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
3d632c3f | 351 | new_value); |
b76cdba9 MW |
352 | } |
353 | out: | |
354 | return ret; | |
355 | } | |
3d632c3f SH |
356 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
357 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
358 | |
359 | /* | |
3d632c3f SH |
360 | * Show and set the bonding transmit hash method. |
361 | * The bond interface must be down to change the xmit hash policy. | |
b76cdba9 | 362 | */ |
43cb76d9 GKH |
363 | static ssize_t bonding_show_xmit_hash(struct device *d, |
364 | struct device_attribute *attr, | |
365 | char *buf) | |
b76cdba9 | 366 | { |
43cb76d9 | 367 | struct bonding *bond = to_bond(d); |
b76cdba9 | 368 | |
8e4b9329 WF |
369 | return sprintf(buf, "%s %d\n", |
370 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
371 | bond->params.xmit_policy); | |
b76cdba9 MW |
372 | } |
373 | ||
43cb76d9 GKH |
374 | static ssize_t bonding_store_xmit_hash(struct device *d, |
375 | struct device_attribute *attr, | |
376 | const char *buf, size_t count) | |
b76cdba9 MW |
377 | { |
378 | int new_value, ret = count; | |
43cb76d9 | 379 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
380 | |
381 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 382 | pr_err("%s: Interface is up. Unable to update xmit policy.\n", |
b76cdba9 MW |
383 | bond->dev->name); |
384 | ret = -EPERM; | |
385 | goto out; | |
386 | } | |
387 | ||
ece95f7f | 388 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 389 | if (new_value < 0) { |
a4aee5c8 | 390 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
391 | bond->dev->name, |
392 | (int)strlen(buf) - 1, buf); | |
393 | ret = -EINVAL; | |
394 | goto out; | |
395 | } else { | |
396 | bond->params.xmit_policy = new_value; | |
397 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 | 398 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
399 | bond->dev->name, |
400 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 MW |
401 | } |
402 | out: | |
403 | return ret; | |
404 | } | |
3d632c3f SH |
405 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
406 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 407 | |
f5b2b966 JV |
408 | /* |
409 | * Show and set arp_validate. | |
410 | */ | |
43cb76d9 GKH |
411 | static ssize_t bonding_show_arp_validate(struct device *d, |
412 | struct device_attribute *attr, | |
413 | char *buf) | |
f5b2b966 | 414 | { |
43cb76d9 | 415 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
416 | |
417 | return sprintf(buf, "%s %d\n", | |
418 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 419 | bond->params.arp_validate); |
f5b2b966 JV |
420 | } |
421 | ||
43cb76d9 GKH |
422 | static ssize_t bonding_store_arp_validate(struct device *d, |
423 | struct device_attribute *attr, | |
424 | const char *buf, size_t count) | |
f5b2b966 JV |
425 | { |
426 | int new_value; | |
43cb76d9 | 427 | struct bonding *bond = to_bond(d); |
f5b2b966 | 428 | |
ece95f7f | 429 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 430 | if (new_value < 0) { |
a4aee5c8 | 431 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 JV |
432 | bond->dev->name, buf); |
433 | return -EINVAL; | |
434 | } | |
435 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
a4aee5c8 | 436 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 JV |
437 | bond->dev->name); |
438 | return -EINVAL; | |
439 | } | |
a4aee5c8 JP |
440 | pr_info("%s: setting arp_validate to %s (%d).\n", |
441 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
442 | new_value); | |
f5b2b966 | 443 | |
3d632c3f | 444 | if (!bond->params.arp_validate && new_value) |
f5b2b966 | 445 | bond_register_arp(bond); |
3d632c3f | 446 | else if (bond->params.arp_validate && !new_value) |
f5b2b966 | 447 | bond_unregister_arp(bond); |
f5b2b966 JV |
448 | |
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 MW |
524 | |
525 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 526 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
527 | bond->dev->name); |
528 | ret = -EINVAL; | |
529 | goto out; | |
530 | } | |
531 | if (new_value < 0) { | |
a4aee5c8 | 532 | pr_err("%s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", |
b76cdba9 MW |
533 | bond->dev->name, new_value, INT_MAX); |
534 | ret = -EINVAL; | |
535 | goto out; | |
536 | } | |
537 | ||
a4aee5c8 JP |
538 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
539 | bond->dev->name, new_value); | |
b76cdba9 | 540 | bond->params.arp_interval = new_value; |
6cf3f41e JV |
541 | if (bond->params.arp_interval) |
542 | bond->dev->priv_flags |= IFF_MASTER_ARPMON; | |
b76cdba9 | 543 | if (bond->params.miimon) { |
a4aee5c8 JP |
544 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", |
545 | bond->dev->name, bond->dev->name); | |
b76cdba9 | 546 | bond->params.miimon = 0; |
1b76b316 JV |
547 | if (delayed_work_pending(&bond->mii_work)) { |
548 | cancel_delayed_work(&bond->mii_work); | |
549 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
550 | } |
551 | } | |
552 | if (!bond->params.arp_targets[0]) { | |
a4aee5c8 JP |
553 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", |
554 | bond->dev->name); | |
b76cdba9 MW |
555 | } |
556 | if (bond->dev->flags & IFF_UP) { | |
557 | /* If the interface is up, we may need to fire off | |
558 | * the ARP timer. If the interface is down, the | |
559 | * timer will get fired off when the open function | |
560 | * is called. | |
561 | */ | |
1b76b316 JV |
562 | if (!delayed_work_pending(&bond->arp_work)) { |
563 | if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) | |
564 | INIT_DELAYED_WORK(&bond->arp_work, | |
565 | bond_activebackup_arp_mon); | |
566 | else | |
567 | INIT_DELAYED_WORK(&bond->arp_work, | |
568 | bond_loadbalance_arp_mon); | |
569 | ||
570 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
b76cdba9 MW |
571 | } |
572 | } | |
573 | ||
574 | out: | |
575 | return ret; | |
576 | } | |
3d632c3f SH |
577 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
578 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
579 | |
580 | /* | |
581 | * Show and set the arp targets. | |
582 | */ | |
43cb76d9 GKH |
583 | static ssize_t bonding_show_arp_targets(struct device *d, |
584 | struct device_attribute *attr, | |
585 | char *buf) | |
b76cdba9 MW |
586 | { |
587 | int i, res = 0; | |
43cb76d9 | 588 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
589 | |
590 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
591 | if (bond->params.arp_targets[i]) | |
63779436 HH |
592 | res += sprintf(buf + res, "%pI4 ", |
593 | &bond->params.arp_targets[i]); | |
b76cdba9 | 594 | } |
1dcdcd69 WF |
595 | if (res) |
596 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
597 | return res; |
598 | } | |
599 | ||
43cb76d9 GKH |
600 | static ssize_t bonding_store_arp_targets(struct device *d, |
601 | struct device_attribute *attr, | |
602 | const char *buf, size_t count) | |
b76cdba9 | 603 | { |
d3bb52b0 | 604 | __be32 newtarget; |
b76cdba9 | 605 | int i = 0, done = 0, ret = count; |
43cb76d9 | 606 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 607 | __be32 *targets; |
b76cdba9 MW |
608 | |
609 | targets = bond->params.arp_targets; | |
610 | newtarget = in_aton(buf + 1); | |
611 | /* look for adds */ | |
612 | if (buf[0] == '+') { | |
d3bb52b0 | 613 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 614 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 615 | bond->dev->name, &newtarget); |
b76cdba9 MW |
616 | ret = -EINVAL; |
617 | goto out; | |
618 | } | |
619 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 620 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 621 | if (targets[i] == newtarget) { /* duplicate */ |
a4aee5c8 | 622 | pr_err("%s: ARP target %pI4 is already present\n", |
63779436 | 623 | bond->dev->name, &newtarget); |
b76cdba9 MW |
624 | ret = -EINVAL; |
625 | goto out; | |
626 | } | |
5a31bec0 | 627 | if (targets[i] == 0) { |
a4aee5c8 JP |
628 | pr_info("%s: adding ARP target %pI4.\n", |
629 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
630 | done = 1; |
631 | targets[i] = newtarget; | |
632 | } | |
633 | } | |
634 | if (!done) { | |
a4aee5c8 | 635 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 MW |
636 | bond->dev->name); |
637 | ret = -EINVAL; | |
638 | goto out; | |
639 | } | |
640 | ||
3d632c3f | 641 | } else if (buf[0] == '-') { |
d3bb52b0 | 642 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 643 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 644 | bond->dev->name, &newtarget); |
b76cdba9 MW |
645 | ret = -EINVAL; |
646 | goto out; | |
647 | } | |
648 | ||
5a31bec0 | 649 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 650 | if (targets[i] == newtarget) { |
5a31bec0 | 651 | int j; |
a4aee5c8 JP |
652 | pr_info("%s: removing ARP target %pI4.\n", |
653 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
654 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
655 | targets[j] = targets[j+1]; | |
656 | ||
657 | targets[j] = 0; | |
b76cdba9 MW |
658 | done = 1; |
659 | } | |
660 | } | |
661 | if (!done) { | |
a4aee5c8 JP |
662 | pr_info("%s: unable to remove nonexistent ARP target %pI4.\n", |
663 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
664 | ret = -EINVAL; |
665 | goto out; | |
666 | } | |
3d632c3f | 667 | } else { |
a4aee5c8 JP |
668 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
669 | bond->dev->name); | |
b76cdba9 MW |
670 | ret = -EPERM; |
671 | goto out; | |
672 | } | |
673 | ||
674 | out: | |
675 | return ret; | |
676 | } | |
43cb76d9 | 677 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
678 | |
679 | /* | |
680 | * Show and set the up and down delays. These must be multiples of the | |
681 | * MII monitoring value, and are stored internally as the multiplier. | |
682 | * Thus, we must translate to MS for the real world. | |
683 | */ | |
43cb76d9 GKH |
684 | static ssize_t bonding_show_downdelay(struct device *d, |
685 | struct device_attribute *attr, | |
686 | char *buf) | |
b76cdba9 | 687 | { |
43cb76d9 | 688 | struct bonding *bond = to_bond(d); |
b76cdba9 | 689 | |
7bd46508 | 690 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
691 | } |
692 | ||
43cb76d9 GKH |
693 | static ssize_t bonding_store_downdelay(struct device *d, |
694 | struct device_attribute *attr, | |
695 | const char *buf, size_t count) | |
b76cdba9 MW |
696 | { |
697 | int new_value, ret = count; | |
43cb76d9 | 698 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
699 | |
700 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 701 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
702 | bond->dev->name); |
703 | ret = -EPERM; | |
704 | goto out; | |
705 | } | |
706 | ||
707 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 708 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
709 | ret = -EINVAL; |
710 | goto out; | |
711 | } | |
712 | if (new_value < 0) { | |
a4aee5c8 | 713 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
714 | bond->dev->name, new_value, 1, INT_MAX); |
715 | ret = -EINVAL; | |
716 | goto out; | |
717 | } else { | |
718 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 719 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
720 | bond->dev->name, new_value, |
721 | bond->params.miimon, | |
722 | (new_value / bond->params.miimon) * | |
723 | bond->params.miimon); | |
b76cdba9 MW |
724 | } |
725 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
726 | pr_info("%s: Setting down delay to %d.\n", |
727 | bond->dev->name, | |
728 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
729 | |
730 | } | |
731 | ||
732 | out: | |
733 | return ret; | |
734 | } | |
3d632c3f SH |
735 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
736 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 737 | |
43cb76d9 GKH |
738 | static ssize_t bonding_show_updelay(struct device *d, |
739 | struct device_attribute *attr, | |
740 | char *buf) | |
b76cdba9 | 741 | { |
43cb76d9 | 742 | struct bonding *bond = to_bond(d); |
b76cdba9 | 743 | |
7bd46508 | 744 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
745 | |
746 | } | |
747 | ||
43cb76d9 GKH |
748 | static ssize_t bonding_store_updelay(struct device *d, |
749 | struct device_attribute *attr, | |
750 | const char *buf, size_t count) | |
b76cdba9 MW |
751 | { |
752 | int new_value, ret = count; | |
43cb76d9 | 753 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
754 | |
755 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 756 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
757 | bond->dev->name); |
758 | ret = -EPERM; | |
759 | goto out; | |
760 | } | |
761 | ||
762 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 763 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
764 | bond->dev->name); |
765 | ret = -EINVAL; | |
766 | goto out; | |
767 | } | |
768 | if (new_value < 0) { | |
a4aee5c8 | 769 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
770 | bond->dev->name, new_value, 1, INT_MAX); |
771 | ret = -EINVAL; | |
772 | goto out; | |
773 | } else { | |
774 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 775 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
776 | bond->dev->name, new_value, |
777 | bond->params.miimon, | |
778 | (new_value / bond->params.miimon) * | |
779 | bond->params.miimon); | |
b76cdba9 MW |
780 | } |
781 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
782 | pr_info("%s: Setting up delay to %d.\n", |
783 | bond->dev->name, | |
784 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
785 | } |
786 | ||
787 | out: | |
788 | return ret; | |
789 | } | |
3d632c3f SH |
790 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
791 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
792 | |
793 | /* | |
794 | * Show and set the LACP interval. Interface must be down, and the mode | |
795 | * must be set to 802.3ad mode. | |
796 | */ | |
43cb76d9 GKH |
797 | static ssize_t bonding_show_lacp(struct device *d, |
798 | struct device_attribute *attr, | |
799 | char *buf) | |
b76cdba9 | 800 | { |
43cb76d9 | 801 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
802 | |
803 | return sprintf(buf, "%s %d\n", | |
804 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 805 | bond->params.lacp_fast); |
b76cdba9 MW |
806 | } |
807 | ||
43cb76d9 GKH |
808 | static ssize_t bonding_store_lacp(struct device *d, |
809 | struct device_attribute *attr, | |
810 | const char *buf, size_t count) | |
b76cdba9 MW |
811 | { |
812 | int new_value, ret = count; | |
43cb76d9 | 813 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
814 | |
815 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 816 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
817 | bond->dev->name); |
818 | ret = -EPERM; | |
819 | goto out; | |
820 | } | |
821 | ||
822 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 823 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
824 | bond->dev->name); |
825 | ret = -EPERM; | |
826 | goto out; | |
827 | } | |
828 | ||
ece95f7f | 829 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
830 | |
831 | if ((new_value == 1) || (new_value == 0)) { | |
832 | bond->params.lacp_fast = new_value; | |
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 | |
fd989c83 JV |
847 | static ssize_t bonding_show_ad_select(struct device *d, |
848 | struct device_attribute *attr, | |
849 | char *buf) | |
850 | { | |
851 | struct bonding *bond = to_bond(d); | |
852 | ||
853 | return sprintf(buf, "%s %d\n", | |
854 | ad_select_tbl[bond->params.ad_select].modename, | |
855 | bond->params.ad_select); | |
856 | } | |
857 | ||
858 | ||
859 | static ssize_t bonding_store_ad_select(struct device *d, | |
860 | struct device_attribute *attr, | |
861 | const char *buf, size_t count) | |
862 | { | |
863 | int new_value, ret = count; | |
864 | struct bonding *bond = to_bond(d); | |
865 | ||
866 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
867 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
868 | bond->dev->name); | |
fd989c83 JV |
869 | ret = -EPERM; |
870 | goto out; | |
871 | } | |
872 | ||
873 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
874 | ||
875 | if (new_value != -1) { | |
876 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
877 | pr_info("%s: Setting ad_select to %s (%d).\n", |
878 | bond->dev->name, ad_select_tbl[new_value].modename, | |
879 | new_value); | |
fd989c83 | 880 | } else { |
a4aee5c8 | 881 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
882 | bond->dev->name, (int)strlen(buf) - 1, buf); |
883 | ret = -EINVAL; | |
884 | } | |
885 | out: | |
886 | return ret; | |
887 | } | |
3d632c3f SH |
888 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
889 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 890 | |
7893b249 MS |
891 | /* |
892 | * Show and set the number of grat ARP to send after a failover event. | |
893 | */ | |
894 | static ssize_t bonding_show_n_grat_arp(struct device *d, | |
895 | struct device_attribute *attr, | |
896 | char *buf) | |
897 | { | |
898 | struct bonding *bond = to_bond(d); | |
899 | ||
900 | return sprintf(buf, "%d\n", bond->params.num_grat_arp); | |
901 | } | |
902 | ||
903 | static ssize_t bonding_store_n_grat_arp(struct device *d, | |
904 | struct device_attribute *attr, | |
905 | const char *buf, size_t count) | |
906 | { | |
907 | int new_value, ret = count; | |
908 | struct bonding *bond = to_bond(d); | |
909 | ||
910 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 911 | pr_err("%s: no num_grat_arp value specified.\n", |
7893b249 MS |
912 | bond->dev->name); |
913 | ret = -EINVAL; | |
914 | goto out; | |
915 | } | |
916 | if (new_value < 0 || new_value > 255) { | |
a4aee5c8 | 917 | pr_err("%s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n", |
7893b249 MS |
918 | bond->dev->name, new_value); |
919 | ret = -EINVAL; | |
920 | goto out; | |
921 | } else { | |
922 | bond->params.num_grat_arp = new_value; | |
923 | } | |
924 | out: | |
925 | return ret; | |
926 | } | |
3d632c3f SH |
927 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, |
928 | bonding_show_n_grat_arp, bonding_store_n_grat_arp); | |
305d552a BH |
929 | |
930 | /* | |
3d632c3f | 931 | * Show and set the number of unsolicited NA's to send after a failover event. |
305d552a BH |
932 | */ |
933 | static ssize_t bonding_show_n_unsol_na(struct device *d, | |
934 | struct device_attribute *attr, | |
935 | char *buf) | |
936 | { | |
937 | struct bonding *bond = to_bond(d); | |
938 | ||
939 | return sprintf(buf, "%d\n", bond->params.num_unsol_na); | |
940 | } | |
941 | ||
942 | static ssize_t bonding_store_n_unsol_na(struct device *d, | |
943 | struct device_attribute *attr, | |
944 | const char *buf, size_t count) | |
945 | { | |
946 | int new_value, ret = count; | |
947 | struct bonding *bond = to_bond(d); | |
948 | ||
949 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 950 | pr_err("%s: no num_unsol_na value specified.\n", |
305d552a BH |
951 | bond->dev->name); |
952 | ret = -EINVAL; | |
953 | goto out; | |
954 | } | |
3d632c3f | 955 | |
305d552a | 956 | if (new_value < 0 || new_value > 255) { |
a4aee5c8 | 957 | pr_err("%s: Invalid num_unsol_na value %d not in range 0-255; rejected.\n", |
305d552a BH |
958 | bond->dev->name, new_value); |
959 | ret = -EINVAL; | |
960 | goto out; | |
3d632c3f | 961 | } else |
305d552a | 962 | bond->params.num_unsol_na = new_value; |
305d552a BH |
963 | out: |
964 | return ret; | |
965 | } | |
3d632c3f SH |
966 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, |
967 | bonding_show_n_unsol_na, bonding_store_n_unsol_na); | |
305d552a | 968 | |
b76cdba9 MW |
969 | /* |
970 | * Show and set the MII monitor interval. There are two tricky bits | |
971 | * here. First, if MII monitoring is activated, then we must disable | |
972 | * ARP monitoring. Second, if the timer isn't running, we must | |
973 | * start it. | |
974 | */ | |
43cb76d9 GKH |
975 | static ssize_t bonding_show_miimon(struct device *d, |
976 | struct device_attribute *attr, | |
977 | char *buf) | |
b76cdba9 | 978 | { |
43cb76d9 | 979 | struct bonding *bond = to_bond(d); |
b76cdba9 | 980 | |
7bd46508 | 981 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
982 | } |
983 | ||
43cb76d9 GKH |
984 | static ssize_t bonding_store_miimon(struct device *d, |
985 | struct device_attribute *attr, | |
986 | const char *buf, size_t count) | |
b76cdba9 MW |
987 | { |
988 | int new_value, ret = count; | |
43cb76d9 | 989 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
990 | |
991 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 992 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
993 | bond->dev->name); |
994 | ret = -EINVAL; | |
995 | goto out; | |
996 | } | |
997 | if (new_value < 0) { | |
a4aee5c8 | 998 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
999 | bond->dev->name, new_value, 1, INT_MAX); |
1000 | ret = -EINVAL; | |
1001 | goto out; | |
1002 | } else { | |
a4aee5c8 JP |
1003 | pr_info("%s: Setting MII monitoring interval to %d.\n", |
1004 | bond->dev->name, new_value); | |
b76cdba9 | 1005 | bond->params.miimon = new_value; |
3d632c3f | 1006 | if (bond->params.updelay) |
a4aee5c8 JP |
1007 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", |
1008 | bond->dev->name, | |
1009 | bond->params.updelay * bond->params.miimon); | |
3d632c3f | 1010 | if (bond->params.downdelay) |
a4aee5c8 JP |
1011 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", |
1012 | bond->dev->name, | |
1013 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 | 1014 | if (bond->params.arp_interval) { |
a4aee5c8 JP |
1015 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", |
1016 | bond->dev->name); | |
b76cdba9 | 1017 | bond->params.arp_interval = 0; |
6cf3f41e | 1018 | bond->dev->priv_flags &= ~IFF_MASTER_ARPMON; |
f5b2b966 JV |
1019 | if (bond->params.arp_validate) { |
1020 | bond_unregister_arp(bond); | |
1021 | bond->params.arp_validate = | |
1022 | BOND_ARP_VALIDATE_NONE; | |
1023 | } | |
1b76b316 JV |
1024 | if (delayed_work_pending(&bond->arp_work)) { |
1025 | cancel_delayed_work(&bond->arp_work); | |
1026 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
1027 | } |
1028 | } | |
1029 | ||
1030 | if (bond->dev->flags & IFF_UP) { | |
1031 | /* If the interface is up, we may need to fire off | |
1032 | * the MII timer. If the interface is down, the | |
1033 | * timer will get fired off when the open function | |
1034 | * is called. | |
1035 | */ | |
1b76b316 JV |
1036 | if (!delayed_work_pending(&bond->mii_work)) { |
1037 | INIT_DELAYED_WORK(&bond->mii_work, | |
1038 | bond_mii_monitor); | |
1039 | queue_delayed_work(bond->wq, | |
1040 | &bond->mii_work, 0); | |
b76cdba9 MW |
1041 | } |
1042 | } | |
1043 | } | |
1044 | out: | |
1045 | return ret; | |
1046 | } | |
3d632c3f SH |
1047 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1048 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1049 | |
1050 | /* | |
1051 | * Show and set the primary slave. The store function is much | |
1052 | * simpler than bonding_store_slaves function because it only needs to | |
1053 | * handle one interface name. | |
1054 | * The bond must be a mode that supports a primary for this be | |
1055 | * set. | |
1056 | */ | |
43cb76d9 GKH |
1057 | static ssize_t bonding_show_primary(struct device *d, |
1058 | struct device_attribute *attr, | |
1059 | char *buf) | |
b76cdba9 MW |
1060 | { |
1061 | int count = 0; | |
43cb76d9 | 1062 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1063 | |
1064 | if (bond->primary_slave) | |
7bd46508 | 1065 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1066 | |
1067 | return count; | |
1068 | } | |
1069 | ||
43cb76d9 GKH |
1070 | static ssize_t bonding_store_primary(struct device *d, |
1071 | struct device_attribute *attr, | |
1072 | const char *buf, size_t count) | |
b76cdba9 MW |
1073 | { |
1074 | int i; | |
1075 | struct slave *slave; | |
43cb76d9 | 1076 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1077 | |
496a60cd EB |
1078 | if (!rtnl_trylock()) |
1079 | return restart_syscall(); | |
e934dd78 JV |
1080 | read_lock(&bond->lock); |
1081 | write_lock_bh(&bond->curr_slave_lock); | |
1082 | ||
b76cdba9 | 1083 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1084 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1085 | bond->dev->name, bond->dev->name, bond->params.mode); | |
b76cdba9 MW |
1086 | } else { |
1087 | bond_for_each_slave(bond, slave, i) { | |
1088 | if (strnicmp | |
1089 | (slave->dev->name, buf, | |
1090 | strlen(slave->dev->name)) == 0) { | |
a4aee5c8 JP |
1091 | pr_info("%s: Setting %s as primary slave.\n", |
1092 | bond->dev->name, slave->dev->name); | |
b76cdba9 | 1093 | bond->primary_slave = slave; |
ce501caf | 1094 | strcpy(bond->params.primary, slave->dev->name); |
b76cdba9 MW |
1095 | bond_select_active_slave(bond); |
1096 | goto out; | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | /* if we got here, then we didn't match the name of any slave */ | |
1101 | ||
1102 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
a4aee5c8 JP |
1103 | pr_info("%s: Setting primary slave to None.\n", |
1104 | bond->dev->name); | |
3418db7c | 1105 | bond->primary_slave = NULL; |
b76cdba9 MW |
1106 | bond_select_active_slave(bond); |
1107 | } else { | |
a4aee5c8 JP |
1108 | pr_info("%s: Unable to set %.*s as primary slave as it is not a slave.\n", |
1109 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
1110 | } |
1111 | } | |
1112 | out: | |
e934dd78 JV |
1113 | write_unlock_bh(&bond->curr_slave_lock); |
1114 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1115 | rtnl_unlock(); |
1116 | ||
b76cdba9 MW |
1117 | return count; |
1118 | } | |
3d632c3f SH |
1119 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1120 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1121 | |
a549952a JP |
1122 | /* |
1123 | * Show and set the primary_reselect flag. | |
1124 | */ | |
1125 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1126 | struct device_attribute *attr, | |
1127 | char *buf) | |
1128 | { | |
1129 | struct bonding *bond = to_bond(d); | |
1130 | ||
1131 | return sprintf(buf, "%s %d\n", | |
1132 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1133 | bond->params.primary_reselect); | |
1134 | } | |
1135 | ||
1136 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1137 | struct device_attribute *attr, | |
1138 | const char *buf, size_t count) | |
1139 | { | |
1140 | int new_value, ret = count; | |
1141 | struct bonding *bond = to_bond(d); | |
1142 | ||
1143 | if (!rtnl_trylock()) | |
1144 | return restart_syscall(); | |
1145 | ||
1146 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1147 | if (new_value < 0) { | |
a4aee5c8 | 1148 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1149 | bond->dev->name, |
1150 | (int) strlen(buf) - 1, buf); | |
1151 | ret = -EINVAL; | |
1152 | goto out; | |
1153 | } | |
1154 | ||
1155 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1156 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1157 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1158 | new_value); | |
1159 | ||
1160 | read_lock(&bond->lock); | |
1161 | write_lock_bh(&bond->curr_slave_lock); | |
1162 | bond_select_active_slave(bond); | |
1163 | write_unlock_bh(&bond->curr_slave_lock); | |
1164 | read_unlock(&bond->lock); | |
1165 | out: | |
1166 | rtnl_unlock(); | |
1167 | return ret; | |
1168 | } | |
1169 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1170 | bonding_show_primary_reselect, | |
1171 | bonding_store_primary_reselect); | |
1172 | ||
b76cdba9 MW |
1173 | /* |
1174 | * Show and set the use_carrier flag. | |
1175 | */ | |
43cb76d9 GKH |
1176 | static ssize_t bonding_show_carrier(struct device *d, |
1177 | struct device_attribute *attr, | |
1178 | char *buf) | |
b76cdba9 | 1179 | { |
43cb76d9 | 1180 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1181 | |
7bd46508 | 1182 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1183 | } |
1184 | ||
43cb76d9 GKH |
1185 | static ssize_t bonding_store_carrier(struct device *d, |
1186 | struct device_attribute *attr, | |
1187 | const char *buf, size_t count) | |
b76cdba9 MW |
1188 | { |
1189 | int new_value, ret = count; | |
43cb76d9 | 1190 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1191 | |
1192 | ||
1193 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1194 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1195 | bond->dev->name); |
1196 | ret = -EINVAL; | |
1197 | goto out; | |
1198 | } | |
1199 | if ((new_value == 0) || (new_value == 1)) { | |
1200 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1201 | pr_info("%s: Setting use_carrier to %d.\n", |
1202 | bond->dev->name, new_value); | |
b76cdba9 | 1203 | } else { |
a4aee5c8 JP |
1204 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1205 | bond->dev->name, new_value); | |
b76cdba9 MW |
1206 | } |
1207 | out: | |
1208 | return count; | |
1209 | } | |
3d632c3f SH |
1210 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1211 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1212 | |
1213 | ||
1214 | /* | |
1215 | * Show and set currently active_slave. | |
1216 | */ | |
43cb76d9 GKH |
1217 | static ssize_t bonding_show_active_slave(struct device *d, |
1218 | struct device_attribute *attr, | |
1219 | char *buf) | |
b76cdba9 MW |
1220 | { |
1221 | struct slave *curr; | |
43cb76d9 | 1222 | struct bonding *bond = to_bond(d); |
16cd0160 | 1223 | int count = 0; |
b76cdba9 | 1224 | |
b76cdba9 MW |
1225 | read_lock(&bond->curr_slave_lock); |
1226 | curr = bond->curr_active_slave; | |
1227 | read_unlock(&bond->curr_slave_lock); | |
1228 | ||
1229 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1230 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1231 | return count; |
1232 | } | |
1233 | ||
43cb76d9 GKH |
1234 | static ssize_t bonding_store_active_slave(struct device *d, |
1235 | struct device_attribute *attr, | |
1236 | const char *buf, size_t count) | |
b76cdba9 MW |
1237 | { |
1238 | int i; | |
1239 | struct slave *slave; | |
3d632c3f SH |
1240 | struct slave *old_active = NULL; |
1241 | struct slave *new_active = NULL; | |
43cb76d9 | 1242 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1243 | |
496a60cd EB |
1244 | if (!rtnl_trylock()) |
1245 | return restart_syscall(); | |
e934dd78 JV |
1246 | read_lock(&bond->lock); |
1247 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1248 | |
3d632c3f | 1249 | if (!USES_PRIMARY(bond->params.mode)) |
a4aee5c8 | 1250 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f SH |
1251 | bond->dev->name, bond->dev->name, bond->params.mode); |
1252 | else { | |
b76cdba9 MW |
1253 | bond_for_each_slave(bond, slave, i) { |
1254 | if (strnicmp | |
1255 | (slave->dev->name, buf, | |
1256 | strlen(slave->dev->name)) == 0) { | |
1257 | old_active = bond->curr_active_slave; | |
1258 | new_active = slave; | |
a50d8de2 | 1259 | if (new_active == old_active) { |
b76cdba9 | 1260 | /* do nothing */ |
a4aee5c8 JP |
1261 | pr_info("%s: %s is already the current active slave.\n", |
1262 | bond->dev->name, | |
1263 | slave->dev->name); | |
b76cdba9 MW |
1264 | goto out; |
1265 | } | |
1266 | else { | |
1267 | if ((new_active) && | |
1268 | (old_active) && | |
1269 | (new_active->link == BOND_LINK_UP) && | |
1270 | IS_UP(new_active->dev)) { | |
a4aee5c8 JP |
1271 | pr_info("%s: Setting %s as active slave.\n", |
1272 | bond->dev->name, | |
1273 | slave->dev->name); | |
e5e2a8fd | 1274 | bond_change_active_slave(bond, new_active); |
b76cdba9 MW |
1275 | } |
1276 | else { | |
a4aee5c8 JP |
1277 | pr_info("%s: Could not set %s as active slave; either %s is down or the link is down.\n", |
1278 | bond->dev->name, | |
1279 | slave->dev->name, | |
e5e2a8fd | 1280 | slave->dev->name); |
b76cdba9 MW |
1281 | } |
1282 | goto out; | |
1283 | } | |
1284 | } | |
1285 | } | |
1286 | ||
1287 | /* if we got here, then we didn't match the name of any slave */ | |
1288 | ||
1289 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
a4aee5c8 | 1290 | pr_info("%s: Setting active slave to None.\n", |
3d632c3f | 1291 | bond->dev->name); |
3418db7c | 1292 | bond->primary_slave = NULL; |
3d632c3f | 1293 | bond_select_active_slave(bond); |
b76cdba9 | 1294 | } else { |
a4aee5c8 | 1295 | pr_info("%s: Unable to set %.*s as active slave as it is not a slave.\n", |
3d632c3f | 1296 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
1297 | } |
1298 | } | |
3d632c3f | 1299 | out: |
e934dd78 JV |
1300 | write_unlock_bh(&bond->curr_slave_lock); |
1301 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1302 | rtnl_unlock(); |
1303 | ||
b76cdba9 MW |
1304 | return count; |
1305 | ||
1306 | } | |
3d632c3f SH |
1307 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1308 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1309 | |
1310 | ||
1311 | /* | |
1312 | * Show link status of the bond interface. | |
1313 | */ | |
43cb76d9 GKH |
1314 | static ssize_t bonding_show_mii_status(struct device *d, |
1315 | struct device_attribute *attr, | |
1316 | char *buf) | |
b76cdba9 MW |
1317 | { |
1318 | struct slave *curr; | |
43cb76d9 | 1319 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1320 | |
1321 | read_lock(&bond->curr_slave_lock); | |
1322 | curr = bond->curr_active_slave; | |
1323 | read_unlock(&bond->curr_slave_lock); | |
1324 | ||
3d632c3f | 1325 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1326 | } |
43cb76d9 | 1327 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 MW |
1328 | |
1329 | ||
1330 | /* | |
1331 | * Show current 802.3ad aggregator ID. | |
1332 | */ | |
43cb76d9 GKH |
1333 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1334 | struct device_attribute *attr, | |
1335 | char *buf) | |
b76cdba9 MW |
1336 | { |
1337 | int count = 0; | |
43cb76d9 | 1338 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1339 | |
1340 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1341 | struct ad_info ad_info; | |
3d632c3f SH |
1342 | count = sprintf(buf, "%d\n", |
1343 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1344 | ? 0 : ad_info.aggregator_id); | |
b76cdba9 | 1345 | } |
b76cdba9 MW |
1346 | |
1347 | return count; | |
1348 | } | |
43cb76d9 | 1349 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1350 | |
1351 | ||
1352 | /* | |
1353 | * Show number of active 802.3ad ports. | |
1354 | */ | |
43cb76d9 GKH |
1355 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1356 | struct device_attribute *attr, | |
1357 | char *buf) | |
b76cdba9 MW |
1358 | { |
1359 | int count = 0; | |
43cb76d9 | 1360 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1361 | |
1362 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1363 | struct ad_info ad_info; | |
3d632c3f SH |
1364 | count = sprintf(buf, "%d\n", |
1365 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1366 | ? 0 : ad_info.ports); | |
b76cdba9 | 1367 | } |
b76cdba9 MW |
1368 | |
1369 | return count; | |
1370 | } | |
43cb76d9 | 1371 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1372 | |
1373 | ||
1374 | /* | |
1375 | * Show current 802.3ad actor key. | |
1376 | */ | |
43cb76d9 GKH |
1377 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1378 | struct device_attribute *attr, | |
1379 | char *buf) | |
b76cdba9 MW |
1380 | { |
1381 | int count = 0; | |
43cb76d9 | 1382 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1383 | |
1384 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1385 | struct ad_info ad_info; | |
3d632c3f SH |
1386 | count = sprintf(buf, "%d\n", |
1387 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1388 | ? 0 : ad_info.actor_key); | |
b76cdba9 | 1389 | } |
b76cdba9 MW |
1390 | |
1391 | return count; | |
1392 | } | |
43cb76d9 | 1393 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1394 | |
1395 | ||
1396 | /* | |
1397 | * Show current 802.3ad partner key. | |
1398 | */ | |
43cb76d9 GKH |
1399 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1400 | struct device_attribute *attr, | |
1401 | char *buf) | |
b76cdba9 MW |
1402 | { |
1403 | int count = 0; | |
43cb76d9 | 1404 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1405 | |
1406 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1407 | struct ad_info ad_info; | |
3d632c3f SH |
1408 | count = sprintf(buf, "%d\n", |
1409 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1410 | ? 0 : ad_info.partner_key); | |
b76cdba9 | 1411 | } |
b76cdba9 MW |
1412 | |
1413 | return count; | |
1414 | } | |
43cb76d9 | 1415 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1416 | |
1417 | ||
1418 | /* | |
1419 | * Show current 802.3ad partner mac. | |
1420 | */ | |
43cb76d9 GKH |
1421 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1422 | struct device_attribute *attr, | |
1423 | char *buf) | |
b76cdba9 MW |
1424 | { |
1425 | int count = 0; | |
43cb76d9 | 1426 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1427 | |
1428 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1429 | struct ad_info ad_info; | |
3d632c3f | 1430 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1431 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1432 | } |
b76cdba9 MW |
1433 | |
1434 | return count; | |
1435 | } | |
43cb76d9 | 1436 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 MW |
1437 | |
1438 | ||
1439 | ||
1440 | static struct attribute *per_bond_attrs[] = { | |
43cb76d9 GKH |
1441 | &dev_attr_slaves.attr, |
1442 | &dev_attr_mode.attr, | |
dd957c57 | 1443 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1444 | &dev_attr_arp_validate.attr, |
1445 | &dev_attr_arp_interval.attr, | |
1446 | &dev_attr_arp_ip_target.attr, | |
1447 | &dev_attr_downdelay.attr, | |
1448 | &dev_attr_updelay.attr, | |
1449 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1450 | &dev_attr_ad_select.attr, |
43cb76d9 | 1451 | &dev_attr_xmit_hash_policy.attr, |
7893b249 | 1452 | &dev_attr_num_grat_arp.attr, |
305d552a | 1453 | &dev_attr_num_unsol_na.attr, |
43cb76d9 GKH |
1454 | &dev_attr_miimon.attr, |
1455 | &dev_attr_primary.attr, | |
a549952a | 1456 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1457 | &dev_attr_use_carrier.attr, |
1458 | &dev_attr_active_slave.attr, | |
1459 | &dev_attr_mii_status.attr, | |
1460 | &dev_attr_ad_aggregator.attr, | |
1461 | &dev_attr_ad_num_ports.attr, | |
1462 | &dev_attr_ad_actor_key.attr, | |
1463 | &dev_attr_ad_partner_key.attr, | |
1464 | &dev_attr_ad_partner_mac.attr, | |
b76cdba9 MW |
1465 | NULL, |
1466 | }; | |
1467 | ||
1468 | static struct attribute_group bonding_group = { | |
1469 | .name = "bonding", | |
1470 | .attrs = per_bond_attrs, | |
1471 | }; | |
1472 | ||
1473 | /* | |
1474 | * Initialize sysfs. This sets up the bonding_masters file in | |
1475 | * /sys/class/net. | |
1476 | */ | |
1477 | int bond_create_sysfs(void) | |
1478 | { | |
b8a9787e | 1479 | int ret; |
b76cdba9 | 1480 | |
b8a9787e | 1481 | ret = netdev_class_create_file(&class_attr_bonding_masters); |
877cbd36 JV |
1482 | /* |
1483 | * Permit multiple loads of the module by ignoring failures to | |
1484 | * create the bonding_masters sysfs file. Bonding devices | |
1485 | * created by second or subsequent loads of the module will | |
1486 | * not be listed in, or controllable by, bonding_masters, but | |
1487 | * will have the usual "bonding" sysfs directory. | |
1488 | * | |
1489 | * This is done to preserve backwards compatibility for | |
1490 | * initscripts/sysconfig, which load bonding multiple times to | |
1491 | * configure multiple bonding devices. | |
1492 | */ | |
1493 | if (ret == -EEXIST) { | |
38d2f38b SH |
1494 | /* Is someone being kinky and naming a device bonding_master? */ |
1495 | if (__dev_get_by_name(&init_net, | |
1496 | class_attr_bonding_masters.attr.name)) | |
a4aee5c8 | 1497 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1498 | class_attr_bonding_masters.attr.name); |
130aa61a | 1499 | ret = 0; |
877cbd36 | 1500 | } |
b76cdba9 MW |
1501 | |
1502 | return ret; | |
1503 | ||
1504 | } | |
1505 | ||
1506 | /* | |
1507 | * Remove /sys/class/net/bonding_masters. | |
1508 | */ | |
1509 | void bond_destroy_sysfs(void) | |
1510 | { | |
b8a9787e | 1511 | netdev_class_remove_file(&class_attr_bonding_masters); |
b76cdba9 MW |
1512 | } |
1513 | ||
1514 | /* | |
1515 | * Initialize sysfs for each bond. This sets up and registers | |
1516 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1517 | */ | |
6151b3d4 | 1518 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1519 | { |
6151b3d4 | 1520 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1521 | } |
1522 |