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; | |
222 | int i, res, found, ret = count; | |
3158bf7d | 223 | u32 original_mtu; |
b76cdba9 | 224 | struct slave *slave; |
3418db7c | 225 | struct net_device *dev = NULL; |
43cb76d9 | 226 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
227 | |
228 | /* Quick sanity check -- is the bond interface up? */ | |
229 | if (!(bond->dev->flags & IFF_UP)) { | |
a4aee5c8 JP |
230 | pr_warning("%s: doing slave updates when interface is down.\n", |
231 | bond->dev->name); | |
b76cdba9 MW |
232 | } |
233 | ||
234 | /* Note: We can't hold bond->lock here, as bond_create grabs it. */ | |
235 | ||
496a60cd EB |
236 | if (!rtnl_trylock()) |
237 | return restart_syscall(); | |
027ea041 | 238 | |
b76cdba9 MW |
239 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
240 | ifname = command + 1; | |
241 | if ((strlen(command) <= 1) || | |
242 | !dev_valid_name(ifname)) | |
243 | goto err_no_cmd; | |
244 | ||
245 | if (command[0] == '+') { | |
246 | ||
247 | /* Got a slave name in ifname. Is it already in the list? */ | |
248 | found = 0; | |
b76cdba9 | 249 | |
ec87fd3b | 250 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
b76cdba9 | 251 | if (!dev) { |
a4aee5c8 JP |
252 | pr_info("%s: Interface %s does not exist!\n", |
253 | bond->dev->name, ifname); | |
373500db | 254 | ret = -ENODEV; |
b76cdba9 | 255 | goto out; |
373500db | 256 | } |
b76cdba9 MW |
257 | |
258 | if (dev->flags & IFF_UP) { | |
a4aee5c8 | 259 | pr_err("%s: Error: Unable to enslave %s because it is already up.\n", |
b76cdba9 MW |
260 | bond->dev->name, dev->name); |
261 | ret = -EPERM; | |
262 | goto out; | |
263 | } | |
373500db SH |
264 | |
265 | read_lock(&bond->lock); | |
266 | bond_for_each_slave(bond, slave, i) | |
267 | if (slave->dev == dev) { | |
a4aee5c8 | 268 | pr_err("%s: Interface %s is already enslaved!\n", |
373500db SH |
269 | bond->dev->name, ifname); |
270 | ret = -EPERM; | |
271 | read_unlock(&bond->lock); | |
272 | goto out; | |
273 | } | |
274 | read_unlock(&bond->lock); | |
275 | ||
a4aee5c8 | 276 | pr_info("%s: Adding slave %s.\n", bond->dev->name, ifname); |
373500db | 277 | |
b76cdba9 MW |
278 | /* If this is the first slave, then we need to set |
279 | the master's hardware address to be the same as the | |
280 | slave's. */ | |
5c5129b5 | 281 | if (is_zero_ether_addr(bond->dev->dev_addr)) |
b76cdba9 MW |
282 | memcpy(bond->dev->dev_addr, dev->dev_addr, |
283 | dev->addr_len); | |
b76cdba9 MW |
284 | |
285 | /* Set the slave's MTU to match the bond */ | |
3158bf7d | 286 | original_mtu = dev->mtu; |
eb7cc59a SH |
287 | res = dev_set_mtu(dev, bond->dev->mtu); |
288 | if (res) { | |
289 | ret = res; | |
290 | goto out; | |
b76cdba9 | 291 | } |
eb7cc59a | 292 | |
b76cdba9 | 293 | res = bond_enslave(bond->dev, dev); |
3158bf7d MS |
294 | bond_for_each_slave(bond, slave, i) |
295 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) | |
296 | slave->original_mtu = original_mtu; | |
3d632c3f | 297 | if (res) |
b76cdba9 | 298 | ret = res; |
3d632c3f | 299 | |
b76cdba9 MW |
300 | goto out; |
301 | } | |
302 | ||
303 | if (command[0] == '-') { | |
304 | dev = NULL; | |
6952d892 | 305 | original_mtu = 0; |
b76cdba9 MW |
306 | bond_for_each_slave(bond, slave, i) |
307 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
308 | dev = slave->dev; | |
3158bf7d | 309 | original_mtu = slave->original_mtu; |
b76cdba9 MW |
310 | break; |
311 | } | |
312 | if (dev) { | |
a4aee5c8 | 313 | pr_info("%s: Removing slave %s\n", |
b76cdba9 | 314 | bond->dev->name, dev->name); |
d90a162a | 315 | res = bond_release(bond->dev, dev); |
b76cdba9 MW |
316 | if (res) { |
317 | ret = res; | |
318 | goto out; | |
319 | } | |
320 | /* set the slave MTU to the default */ | |
eb7cc59a | 321 | dev_set_mtu(dev, original_mtu); |
3d632c3f | 322 | } else { |
a4aee5c8 JP |
323 | pr_err("unable to remove non-existent slave %s for bond %s.\n", |
324 | ifname, bond->dev->name); | |
b76cdba9 MW |
325 | ret = -ENODEV; |
326 | } | |
327 | goto out; | |
328 | } | |
329 | ||
330 | err_no_cmd: | |
a4aee5c8 JP |
331 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
332 | bond->dev->name); | |
b76cdba9 MW |
333 | ret = -EPERM; |
334 | ||
335 | out: | |
027ea041 | 336 | rtnl_unlock(); |
b76cdba9 MW |
337 | return ret; |
338 | } | |
339 | ||
3d632c3f SH |
340 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
341 | bonding_store_slaves); | |
b76cdba9 MW |
342 | |
343 | /* | |
344 | * Show and set the bonding mode. The bond interface must be down to | |
345 | * change the mode. | |
346 | */ | |
43cb76d9 GKH |
347 | static ssize_t bonding_show_mode(struct device *d, |
348 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 349 | { |
43cb76d9 | 350 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
351 | |
352 | return sprintf(buf, "%s %d\n", | |
353 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 354 | bond->params.mode); |
b76cdba9 MW |
355 | } |
356 | ||
43cb76d9 GKH |
357 | static ssize_t bonding_store_mode(struct device *d, |
358 | struct device_attribute *attr, | |
359 | const char *buf, size_t count) | |
b76cdba9 MW |
360 | { |
361 | int new_value, ret = count; | |
43cb76d9 | 362 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
363 | |
364 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
365 | pr_err("unable to update mode of %s because interface is up.\n", |
366 | bond->dev->name); | |
b76cdba9 MW |
367 | ret = -EPERM; |
368 | goto out; | |
369 | } | |
370 | ||
ece95f7f | 371 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 372 | if (new_value < 0) { |
a4aee5c8 JP |
373 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
374 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
375 | ret = -EINVAL; |
376 | goto out; | |
377 | } else { | |
8f903c70 JV |
378 | if (bond->params.mode == BOND_MODE_8023AD) |
379 | bond_unset_master_3ad_flags(bond); | |
380 | ||
381 | if (bond->params.mode == BOND_MODE_ALB) | |
382 | bond_unset_master_alb_flags(bond); | |
383 | ||
b76cdba9 MW |
384 | bond->params.mode = new_value; |
385 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 JP |
386 | pr_info("%s: setting mode to %s (%d).\n", |
387 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
3d632c3f | 388 | new_value); |
b76cdba9 MW |
389 | } |
390 | out: | |
391 | return ret; | |
392 | } | |
3d632c3f SH |
393 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
394 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
395 | |
396 | /* | |
3d632c3f SH |
397 | * Show and set the bonding transmit hash method. |
398 | * The bond interface must be down to change the xmit hash policy. | |
b76cdba9 | 399 | */ |
43cb76d9 GKH |
400 | static ssize_t bonding_show_xmit_hash(struct device *d, |
401 | struct device_attribute *attr, | |
402 | char *buf) | |
b76cdba9 | 403 | { |
43cb76d9 | 404 | struct bonding *bond = to_bond(d); |
b76cdba9 | 405 | |
8e4b9329 WF |
406 | return sprintf(buf, "%s %d\n", |
407 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
408 | bond->params.xmit_policy); | |
b76cdba9 MW |
409 | } |
410 | ||
43cb76d9 GKH |
411 | static ssize_t bonding_store_xmit_hash(struct device *d, |
412 | struct device_attribute *attr, | |
413 | const char *buf, size_t count) | |
b76cdba9 MW |
414 | { |
415 | int new_value, ret = count; | |
43cb76d9 | 416 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
417 | |
418 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 419 | pr_err("%s: Interface is up. Unable to update xmit policy.\n", |
b76cdba9 MW |
420 | bond->dev->name); |
421 | ret = -EPERM; | |
422 | goto out; | |
423 | } | |
424 | ||
ece95f7f | 425 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 426 | if (new_value < 0) { |
a4aee5c8 | 427 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
428 | bond->dev->name, |
429 | (int)strlen(buf) - 1, buf); | |
430 | ret = -EINVAL; | |
431 | goto out; | |
432 | } else { | |
433 | bond->params.xmit_policy = new_value; | |
434 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 | 435 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
436 | bond->dev->name, |
437 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 MW |
438 | } |
439 | out: | |
440 | return ret; | |
441 | } | |
3d632c3f SH |
442 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
443 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 444 | |
f5b2b966 JV |
445 | /* |
446 | * Show and set arp_validate. | |
447 | */ | |
43cb76d9 GKH |
448 | static ssize_t bonding_show_arp_validate(struct device *d, |
449 | struct device_attribute *attr, | |
450 | char *buf) | |
f5b2b966 | 451 | { |
43cb76d9 | 452 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
453 | |
454 | return sprintf(buf, "%s %d\n", | |
455 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 456 | bond->params.arp_validate); |
f5b2b966 JV |
457 | } |
458 | ||
43cb76d9 GKH |
459 | static ssize_t bonding_store_arp_validate(struct device *d, |
460 | struct device_attribute *attr, | |
461 | const char *buf, size_t count) | |
f5b2b966 JV |
462 | { |
463 | int new_value; | |
43cb76d9 | 464 | struct bonding *bond = to_bond(d); |
f5b2b966 | 465 | |
ece95f7f | 466 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 467 | if (new_value < 0) { |
a4aee5c8 | 468 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 JV |
469 | bond->dev->name, buf); |
470 | return -EINVAL; | |
471 | } | |
472 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
a4aee5c8 | 473 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 JV |
474 | bond->dev->name); |
475 | return -EINVAL; | |
476 | } | |
a4aee5c8 JP |
477 | pr_info("%s: setting arp_validate to %s (%d).\n", |
478 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
479 | new_value); | |
f5b2b966 | 480 | |
3d632c3f | 481 | if (!bond->params.arp_validate && new_value) |
f5b2b966 | 482 | bond_register_arp(bond); |
3d632c3f | 483 | else if (bond->params.arp_validate && !new_value) |
f5b2b966 | 484 | bond_unregister_arp(bond); |
f5b2b966 JV |
485 | |
486 | bond->params.arp_validate = new_value; | |
487 | ||
488 | return count; | |
489 | } | |
490 | ||
3d632c3f SH |
491 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
492 | bonding_store_arp_validate); | |
f5b2b966 | 493 | |
dd957c57 JV |
494 | /* |
495 | * Show and store fail_over_mac. User only allowed to change the | |
496 | * value when there are no slaves. | |
497 | */ | |
3d632c3f SH |
498 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
499 | struct device_attribute *attr, | |
500 | char *buf) | |
dd957c57 JV |
501 | { |
502 | struct bonding *bond = to_bond(d); | |
503 | ||
3915c1e8 JV |
504 | return sprintf(buf, "%s %d\n", |
505 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
506 | bond->params.fail_over_mac); | |
dd957c57 JV |
507 | } |
508 | ||
3d632c3f SH |
509 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
510 | struct device_attribute *attr, | |
511 | const char *buf, size_t count) | |
dd957c57 JV |
512 | { |
513 | int new_value; | |
dd957c57 JV |
514 | struct bonding *bond = to_bond(d); |
515 | ||
516 | if (bond->slave_cnt != 0) { | |
a4aee5c8 | 517 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 518 | bond->dev->name); |
3915c1e8 | 519 | return -EPERM; |
dd957c57 JV |
520 | } |
521 | ||
3915c1e8 JV |
522 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
523 | if (new_value < 0) { | |
a4aee5c8 | 524 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 JV |
525 | bond->dev->name, buf); |
526 | return -EINVAL; | |
dd957c57 JV |
527 | } |
528 | ||
3915c1e8 | 529 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
530 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
531 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
532 | new_value); | |
3915c1e8 JV |
533 | |
534 | return count; | |
dd957c57 JV |
535 | } |
536 | ||
3d632c3f SH |
537 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
538 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 539 | |
b76cdba9 MW |
540 | /* |
541 | * Show and set the arp timer interval. There are two tricky bits | |
542 | * here. First, if ARP monitoring is activated, then we must disable | |
543 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
544 | * start it. | |
545 | */ | |
43cb76d9 GKH |
546 | static ssize_t bonding_show_arp_interval(struct device *d, |
547 | struct device_attribute *attr, | |
548 | char *buf) | |
b76cdba9 | 549 | { |
43cb76d9 | 550 | struct bonding *bond = to_bond(d); |
b76cdba9 | 551 | |
7bd46508 | 552 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
553 | } |
554 | ||
43cb76d9 GKH |
555 | static ssize_t bonding_store_arp_interval(struct device *d, |
556 | struct device_attribute *attr, | |
557 | const char *buf, size_t count) | |
b76cdba9 MW |
558 | { |
559 | int new_value, ret = count; | |
43cb76d9 | 560 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
561 | |
562 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 563 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
564 | bond->dev->name); |
565 | ret = -EINVAL; | |
566 | goto out; | |
567 | } | |
568 | if (new_value < 0) { | |
a4aee5c8 | 569 | pr_err("%s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", |
b76cdba9 MW |
570 | bond->dev->name, new_value, INT_MAX); |
571 | ret = -EINVAL; | |
572 | goto out; | |
573 | } | |
574 | ||
a4aee5c8 JP |
575 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
576 | bond->dev->name, new_value); | |
b76cdba9 | 577 | bond->params.arp_interval = new_value; |
6cf3f41e JV |
578 | if (bond->params.arp_interval) |
579 | bond->dev->priv_flags |= IFF_MASTER_ARPMON; | |
b76cdba9 | 580 | if (bond->params.miimon) { |
a4aee5c8 JP |
581 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", |
582 | bond->dev->name, bond->dev->name); | |
b76cdba9 | 583 | bond->params.miimon = 0; |
1b76b316 JV |
584 | if (delayed_work_pending(&bond->mii_work)) { |
585 | cancel_delayed_work(&bond->mii_work); | |
586 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
587 | } |
588 | } | |
589 | if (!bond->params.arp_targets[0]) { | |
a4aee5c8 JP |
590 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", |
591 | bond->dev->name); | |
b76cdba9 MW |
592 | } |
593 | if (bond->dev->flags & IFF_UP) { | |
594 | /* If the interface is up, we may need to fire off | |
595 | * the ARP timer. If the interface is down, the | |
596 | * timer will get fired off when the open function | |
597 | * is called. | |
598 | */ | |
1b76b316 JV |
599 | if (!delayed_work_pending(&bond->arp_work)) { |
600 | if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) | |
601 | INIT_DELAYED_WORK(&bond->arp_work, | |
602 | bond_activebackup_arp_mon); | |
603 | else | |
604 | INIT_DELAYED_WORK(&bond->arp_work, | |
605 | bond_loadbalance_arp_mon); | |
606 | ||
607 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
b76cdba9 MW |
608 | } |
609 | } | |
610 | ||
611 | out: | |
612 | return ret; | |
613 | } | |
3d632c3f SH |
614 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
615 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
616 | |
617 | /* | |
618 | * Show and set the arp targets. | |
619 | */ | |
43cb76d9 GKH |
620 | static ssize_t bonding_show_arp_targets(struct device *d, |
621 | struct device_attribute *attr, | |
622 | char *buf) | |
b76cdba9 MW |
623 | { |
624 | int i, res = 0; | |
43cb76d9 | 625 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
626 | |
627 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
628 | if (bond->params.arp_targets[i]) | |
63779436 HH |
629 | res += sprintf(buf + res, "%pI4 ", |
630 | &bond->params.arp_targets[i]); | |
b76cdba9 | 631 | } |
1dcdcd69 WF |
632 | if (res) |
633 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
634 | return res; |
635 | } | |
636 | ||
43cb76d9 GKH |
637 | static ssize_t bonding_store_arp_targets(struct device *d, |
638 | struct device_attribute *attr, | |
639 | const char *buf, size_t count) | |
b76cdba9 | 640 | { |
d3bb52b0 | 641 | __be32 newtarget; |
b76cdba9 | 642 | int i = 0, done = 0, ret = count; |
43cb76d9 | 643 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 644 | __be32 *targets; |
b76cdba9 MW |
645 | |
646 | targets = bond->params.arp_targets; | |
647 | newtarget = in_aton(buf + 1); | |
648 | /* look for adds */ | |
649 | if (buf[0] == '+') { | |
d3bb52b0 | 650 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 651 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 652 | bond->dev->name, &newtarget); |
b76cdba9 MW |
653 | ret = -EINVAL; |
654 | goto out; | |
655 | } | |
656 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 657 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 658 | if (targets[i] == newtarget) { /* duplicate */ |
a4aee5c8 | 659 | pr_err("%s: ARP target %pI4 is already present\n", |
63779436 | 660 | bond->dev->name, &newtarget); |
b76cdba9 MW |
661 | ret = -EINVAL; |
662 | goto out; | |
663 | } | |
5a31bec0 | 664 | if (targets[i] == 0) { |
a4aee5c8 JP |
665 | pr_info("%s: adding ARP target %pI4.\n", |
666 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
667 | done = 1; |
668 | targets[i] = newtarget; | |
669 | } | |
670 | } | |
671 | if (!done) { | |
a4aee5c8 | 672 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 MW |
673 | bond->dev->name); |
674 | ret = -EINVAL; | |
675 | goto out; | |
676 | } | |
677 | ||
3d632c3f | 678 | } else if (buf[0] == '-') { |
d3bb52b0 | 679 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 680 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 681 | bond->dev->name, &newtarget); |
b76cdba9 MW |
682 | ret = -EINVAL; |
683 | goto out; | |
684 | } | |
685 | ||
5a31bec0 | 686 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 687 | if (targets[i] == newtarget) { |
5a31bec0 | 688 | int j; |
a4aee5c8 JP |
689 | pr_info("%s: removing ARP target %pI4.\n", |
690 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
691 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
692 | targets[j] = targets[j+1]; | |
693 | ||
694 | targets[j] = 0; | |
b76cdba9 MW |
695 | done = 1; |
696 | } | |
697 | } | |
698 | if (!done) { | |
a4aee5c8 JP |
699 | pr_info("%s: unable to remove nonexistent ARP target %pI4.\n", |
700 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
701 | ret = -EINVAL; |
702 | goto out; | |
703 | } | |
3d632c3f | 704 | } else { |
a4aee5c8 JP |
705 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
706 | bond->dev->name); | |
b76cdba9 MW |
707 | ret = -EPERM; |
708 | goto out; | |
709 | } | |
710 | ||
711 | out: | |
712 | return ret; | |
713 | } | |
43cb76d9 | 714 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
715 | |
716 | /* | |
717 | * Show and set the up and down delays. These must be multiples of the | |
718 | * MII monitoring value, and are stored internally as the multiplier. | |
719 | * Thus, we must translate to MS for the real world. | |
720 | */ | |
43cb76d9 GKH |
721 | static ssize_t bonding_show_downdelay(struct device *d, |
722 | struct device_attribute *attr, | |
723 | char *buf) | |
b76cdba9 | 724 | { |
43cb76d9 | 725 | struct bonding *bond = to_bond(d); |
b76cdba9 | 726 | |
7bd46508 | 727 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
728 | } |
729 | ||
43cb76d9 GKH |
730 | static ssize_t bonding_store_downdelay(struct device *d, |
731 | struct device_attribute *attr, | |
732 | const char *buf, size_t count) | |
b76cdba9 MW |
733 | { |
734 | int new_value, ret = count; | |
43cb76d9 | 735 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
736 | |
737 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 738 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
739 | bond->dev->name); |
740 | ret = -EPERM; | |
741 | goto out; | |
742 | } | |
743 | ||
744 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 745 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
746 | ret = -EINVAL; |
747 | goto out; | |
748 | } | |
749 | if (new_value < 0) { | |
a4aee5c8 | 750 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
751 | bond->dev->name, new_value, 1, INT_MAX); |
752 | ret = -EINVAL; | |
753 | goto out; | |
754 | } else { | |
755 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 756 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
757 | bond->dev->name, new_value, |
758 | bond->params.miimon, | |
759 | (new_value / bond->params.miimon) * | |
760 | bond->params.miimon); | |
b76cdba9 MW |
761 | } |
762 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
763 | pr_info("%s: Setting down delay to %d.\n", |
764 | bond->dev->name, | |
765 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
766 | |
767 | } | |
768 | ||
769 | out: | |
770 | return ret; | |
771 | } | |
3d632c3f SH |
772 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
773 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 774 | |
43cb76d9 GKH |
775 | static ssize_t bonding_show_updelay(struct device *d, |
776 | struct device_attribute *attr, | |
777 | char *buf) | |
b76cdba9 | 778 | { |
43cb76d9 | 779 | struct bonding *bond = to_bond(d); |
b76cdba9 | 780 | |
7bd46508 | 781 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
782 | |
783 | } | |
784 | ||
43cb76d9 GKH |
785 | static ssize_t bonding_store_updelay(struct device *d, |
786 | struct device_attribute *attr, | |
787 | const char *buf, size_t count) | |
b76cdba9 MW |
788 | { |
789 | int new_value, ret = count; | |
43cb76d9 | 790 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
791 | |
792 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 793 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
794 | bond->dev->name); |
795 | ret = -EPERM; | |
796 | goto out; | |
797 | } | |
798 | ||
799 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 800 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
801 | bond->dev->name); |
802 | ret = -EINVAL; | |
803 | goto out; | |
804 | } | |
805 | if (new_value < 0) { | |
a4aee5c8 | 806 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
807 | bond->dev->name, new_value, 1, INT_MAX); |
808 | ret = -EINVAL; | |
809 | goto out; | |
810 | } else { | |
811 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 812 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
813 | bond->dev->name, new_value, |
814 | bond->params.miimon, | |
815 | (new_value / bond->params.miimon) * | |
816 | bond->params.miimon); | |
b76cdba9 MW |
817 | } |
818 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
819 | pr_info("%s: Setting up delay to %d.\n", |
820 | bond->dev->name, | |
821 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
822 | } |
823 | ||
824 | out: | |
825 | return ret; | |
826 | } | |
3d632c3f SH |
827 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
828 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
829 | |
830 | /* | |
831 | * Show and set the LACP interval. Interface must be down, and the mode | |
832 | * must be set to 802.3ad mode. | |
833 | */ | |
43cb76d9 GKH |
834 | static ssize_t bonding_show_lacp(struct device *d, |
835 | struct device_attribute *attr, | |
836 | char *buf) | |
b76cdba9 | 837 | { |
43cb76d9 | 838 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
839 | |
840 | return sprintf(buf, "%s %d\n", | |
841 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 842 | bond->params.lacp_fast); |
b76cdba9 MW |
843 | } |
844 | ||
43cb76d9 GKH |
845 | static ssize_t bonding_store_lacp(struct device *d, |
846 | struct device_attribute *attr, | |
847 | const char *buf, size_t count) | |
b76cdba9 MW |
848 | { |
849 | int new_value, ret = count; | |
43cb76d9 | 850 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
851 | |
852 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 853 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
854 | bond->dev->name); |
855 | ret = -EPERM; | |
856 | goto out; | |
857 | } | |
858 | ||
859 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 860 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
861 | bond->dev->name); |
862 | ret = -EPERM; | |
863 | goto out; | |
864 | } | |
865 | ||
ece95f7f | 866 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
867 | |
868 | if ((new_value == 1) || (new_value == 0)) { | |
869 | bond->params.lacp_fast = new_value; | |
a4aee5c8 | 870 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
871 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
872 | new_value); | |
b76cdba9 | 873 | } else { |
a4aee5c8 | 874 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 875 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
876 | ret = -EINVAL; |
877 | } | |
878 | out: | |
879 | return ret; | |
880 | } | |
3d632c3f SH |
881 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
882 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 883 | |
fd989c83 JV |
884 | static ssize_t bonding_show_ad_select(struct device *d, |
885 | struct device_attribute *attr, | |
886 | char *buf) | |
887 | { | |
888 | struct bonding *bond = to_bond(d); | |
889 | ||
890 | return sprintf(buf, "%s %d\n", | |
891 | ad_select_tbl[bond->params.ad_select].modename, | |
892 | bond->params.ad_select); | |
893 | } | |
894 | ||
895 | ||
896 | static ssize_t bonding_store_ad_select(struct device *d, | |
897 | struct device_attribute *attr, | |
898 | const char *buf, size_t count) | |
899 | { | |
900 | int new_value, ret = count; | |
901 | struct bonding *bond = to_bond(d); | |
902 | ||
903 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
904 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
905 | bond->dev->name); | |
fd989c83 JV |
906 | ret = -EPERM; |
907 | goto out; | |
908 | } | |
909 | ||
910 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
911 | ||
912 | if (new_value != -1) { | |
913 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
914 | pr_info("%s: Setting ad_select to %s (%d).\n", |
915 | bond->dev->name, ad_select_tbl[new_value].modename, | |
916 | new_value); | |
fd989c83 | 917 | } else { |
a4aee5c8 | 918 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
919 | bond->dev->name, (int)strlen(buf) - 1, buf); |
920 | ret = -EINVAL; | |
921 | } | |
922 | out: | |
923 | return ret; | |
924 | } | |
3d632c3f SH |
925 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
926 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 927 | |
7893b249 MS |
928 | /* |
929 | * Show and set the number of grat ARP to send after a failover event. | |
930 | */ | |
931 | static ssize_t bonding_show_n_grat_arp(struct device *d, | |
932 | struct device_attribute *attr, | |
933 | char *buf) | |
934 | { | |
935 | struct bonding *bond = to_bond(d); | |
936 | ||
937 | return sprintf(buf, "%d\n", bond->params.num_grat_arp); | |
938 | } | |
939 | ||
940 | static ssize_t bonding_store_n_grat_arp(struct device *d, | |
941 | struct device_attribute *attr, | |
942 | const char *buf, size_t count) | |
943 | { | |
944 | int new_value, ret = count; | |
945 | struct bonding *bond = to_bond(d); | |
946 | ||
947 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 948 | pr_err("%s: no num_grat_arp value specified.\n", |
7893b249 MS |
949 | bond->dev->name); |
950 | ret = -EINVAL; | |
951 | goto out; | |
952 | } | |
953 | if (new_value < 0 || new_value > 255) { | |
a4aee5c8 | 954 | pr_err("%s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n", |
7893b249 MS |
955 | bond->dev->name, new_value); |
956 | ret = -EINVAL; | |
957 | goto out; | |
958 | } else { | |
959 | bond->params.num_grat_arp = new_value; | |
960 | } | |
961 | out: | |
962 | return ret; | |
963 | } | |
3d632c3f SH |
964 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, |
965 | bonding_show_n_grat_arp, bonding_store_n_grat_arp); | |
305d552a BH |
966 | |
967 | /* | |
3d632c3f | 968 | * Show and set the number of unsolicited NA's to send after a failover event. |
305d552a BH |
969 | */ |
970 | static ssize_t bonding_show_n_unsol_na(struct device *d, | |
971 | struct device_attribute *attr, | |
972 | char *buf) | |
973 | { | |
974 | struct bonding *bond = to_bond(d); | |
975 | ||
976 | return sprintf(buf, "%d\n", bond->params.num_unsol_na); | |
977 | } | |
978 | ||
979 | static ssize_t bonding_store_n_unsol_na(struct device *d, | |
980 | struct device_attribute *attr, | |
981 | const char *buf, size_t count) | |
982 | { | |
983 | int new_value, ret = count; | |
984 | struct bonding *bond = to_bond(d); | |
985 | ||
986 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 987 | pr_err("%s: no num_unsol_na value specified.\n", |
305d552a BH |
988 | bond->dev->name); |
989 | ret = -EINVAL; | |
990 | goto out; | |
991 | } | |
3d632c3f | 992 | |
305d552a | 993 | if (new_value < 0 || new_value > 255) { |
a4aee5c8 | 994 | pr_err("%s: Invalid num_unsol_na value %d not in range 0-255; rejected.\n", |
305d552a BH |
995 | bond->dev->name, new_value); |
996 | ret = -EINVAL; | |
997 | goto out; | |
3d632c3f | 998 | } else |
305d552a | 999 | bond->params.num_unsol_na = new_value; |
305d552a BH |
1000 | out: |
1001 | return ret; | |
1002 | } | |
3d632c3f SH |
1003 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, |
1004 | bonding_show_n_unsol_na, bonding_store_n_unsol_na); | |
305d552a | 1005 | |
b76cdba9 MW |
1006 | /* |
1007 | * Show and set the MII monitor interval. There are two tricky bits | |
1008 | * here. First, if MII monitoring is activated, then we must disable | |
1009 | * ARP monitoring. Second, if the timer isn't running, we must | |
1010 | * start it. | |
1011 | */ | |
43cb76d9 GKH |
1012 | static ssize_t bonding_show_miimon(struct device *d, |
1013 | struct device_attribute *attr, | |
1014 | char *buf) | |
b76cdba9 | 1015 | { |
43cb76d9 | 1016 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1017 | |
7bd46508 | 1018 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
1019 | } |
1020 | ||
43cb76d9 GKH |
1021 | static ssize_t bonding_store_miimon(struct device *d, |
1022 | struct device_attribute *attr, | |
1023 | const char *buf, size_t count) | |
b76cdba9 MW |
1024 | { |
1025 | int new_value, ret = count; | |
43cb76d9 | 1026 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1027 | |
1028 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1029 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
1030 | bond->dev->name); |
1031 | ret = -EINVAL; | |
1032 | goto out; | |
1033 | } | |
1034 | if (new_value < 0) { | |
a4aee5c8 | 1035 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
1036 | bond->dev->name, new_value, 1, INT_MAX); |
1037 | ret = -EINVAL; | |
1038 | goto out; | |
1039 | } else { | |
a4aee5c8 JP |
1040 | pr_info("%s: Setting MII monitoring interval to %d.\n", |
1041 | bond->dev->name, new_value); | |
b76cdba9 | 1042 | bond->params.miimon = new_value; |
3d632c3f | 1043 | if (bond->params.updelay) |
a4aee5c8 JP |
1044 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", |
1045 | bond->dev->name, | |
1046 | bond->params.updelay * bond->params.miimon); | |
3d632c3f | 1047 | if (bond->params.downdelay) |
a4aee5c8 JP |
1048 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", |
1049 | bond->dev->name, | |
1050 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 | 1051 | if (bond->params.arp_interval) { |
a4aee5c8 JP |
1052 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", |
1053 | bond->dev->name); | |
b76cdba9 | 1054 | bond->params.arp_interval = 0; |
6cf3f41e | 1055 | bond->dev->priv_flags &= ~IFF_MASTER_ARPMON; |
f5b2b966 JV |
1056 | if (bond->params.arp_validate) { |
1057 | bond_unregister_arp(bond); | |
1058 | bond->params.arp_validate = | |
1059 | BOND_ARP_VALIDATE_NONE; | |
1060 | } | |
1b76b316 JV |
1061 | if (delayed_work_pending(&bond->arp_work)) { |
1062 | cancel_delayed_work(&bond->arp_work); | |
1063 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
1064 | } |
1065 | } | |
1066 | ||
1067 | if (bond->dev->flags & IFF_UP) { | |
1068 | /* If the interface is up, we may need to fire off | |
1069 | * the MII timer. If the interface is down, the | |
1070 | * timer will get fired off when the open function | |
1071 | * is called. | |
1072 | */ | |
1b76b316 JV |
1073 | if (!delayed_work_pending(&bond->mii_work)) { |
1074 | INIT_DELAYED_WORK(&bond->mii_work, | |
1075 | bond_mii_monitor); | |
1076 | queue_delayed_work(bond->wq, | |
1077 | &bond->mii_work, 0); | |
b76cdba9 MW |
1078 | } |
1079 | } | |
1080 | } | |
1081 | out: | |
1082 | return ret; | |
1083 | } | |
3d632c3f SH |
1084 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1085 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1086 | |
1087 | /* | |
1088 | * Show and set the primary slave. The store function is much | |
1089 | * simpler than bonding_store_slaves function because it only needs to | |
1090 | * handle one interface name. | |
1091 | * The bond must be a mode that supports a primary for this be | |
1092 | * set. | |
1093 | */ | |
43cb76d9 GKH |
1094 | static ssize_t bonding_show_primary(struct device *d, |
1095 | struct device_attribute *attr, | |
1096 | char *buf) | |
b76cdba9 MW |
1097 | { |
1098 | int count = 0; | |
43cb76d9 | 1099 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1100 | |
1101 | if (bond->primary_slave) | |
7bd46508 | 1102 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1103 | |
1104 | return count; | |
1105 | } | |
1106 | ||
43cb76d9 GKH |
1107 | static ssize_t bonding_store_primary(struct device *d, |
1108 | struct device_attribute *attr, | |
1109 | const char *buf, size_t count) | |
b76cdba9 MW |
1110 | { |
1111 | int i; | |
1112 | struct slave *slave; | |
43cb76d9 | 1113 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1114 | |
496a60cd EB |
1115 | if (!rtnl_trylock()) |
1116 | return restart_syscall(); | |
e934dd78 JV |
1117 | read_lock(&bond->lock); |
1118 | write_lock_bh(&bond->curr_slave_lock); | |
1119 | ||
b76cdba9 | 1120 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1121 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1122 | bond->dev->name, bond->dev->name, bond->params.mode); | |
b76cdba9 MW |
1123 | } else { |
1124 | bond_for_each_slave(bond, slave, i) { | |
1125 | if (strnicmp | |
1126 | (slave->dev->name, buf, | |
1127 | strlen(slave->dev->name)) == 0) { | |
a4aee5c8 JP |
1128 | pr_info("%s: Setting %s as primary slave.\n", |
1129 | bond->dev->name, slave->dev->name); | |
b76cdba9 | 1130 | bond->primary_slave = slave; |
ce501caf | 1131 | strcpy(bond->params.primary, slave->dev->name); |
b76cdba9 MW |
1132 | bond_select_active_slave(bond); |
1133 | goto out; | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | /* if we got here, then we didn't match the name of any slave */ | |
1138 | ||
1139 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
a4aee5c8 JP |
1140 | pr_info("%s: Setting primary slave to None.\n", |
1141 | bond->dev->name); | |
3418db7c | 1142 | bond->primary_slave = NULL; |
b76cdba9 MW |
1143 | bond_select_active_slave(bond); |
1144 | } else { | |
a4aee5c8 JP |
1145 | pr_info("%s: Unable to set %.*s as primary slave as it is not a slave.\n", |
1146 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
1147 | } |
1148 | } | |
1149 | out: | |
e934dd78 JV |
1150 | write_unlock_bh(&bond->curr_slave_lock); |
1151 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1152 | rtnl_unlock(); |
1153 | ||
b76cdba9 MW |
1154 | return count; |
1155 | } | |
3d632c3f SH |
1156 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1157 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1158 | |
a549952a JP |
1159 | /* |
1160 | * Show and set the primary_reselect flag. | |
1161 | */ | |
1162 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1163 | struct device_attribute *attr, | |
1164 | char *buf) | |
1165 | { | |
1166 | struct bonding *bond = to_bond(d); | |
1167 | ||
1168 | return sprintf(buf, "%s %d\n", | |
1169 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1170 | bond->params.primary_reselect); | |
1171 | } | |
1172 | ||
1173 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1174 | struct device_attribute *attr, | |
1175 | const char *buf, size_t count) | |
1176 | { | |
1177 | int new_value, ret = count; | |
1178 | struct bonding *bond = to_bond(d); | |
1179 | ||
1180 | if (!rtnl_trylock()) | |
1181 | return restart_syscall(); | |
1182 | ||
1183 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1184 | if (new_value < 0) { | |
a4aee5c8 | 1185 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1186 | bond->dev->name, |
1187 | (int) strlen(buf) - 1, buf); | |
1188 | ret = -EINVAL; | |
1189 | goto out; | |
1190 | } | |
1191 | ||
1192 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1193 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1194 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1195 | new_value); | |
1196 | ||
1197 | read_lock(&bond->lock); | |
1198 | write_lock_bh(&bond->curr_slave_lock); | |
1199 | bond_select_active_slave(bond); | |
1200 | write_unlock_bh(&bond->curr_slave_lock); | |
1201 | read_unlock(&bond->lock); | |
1202 | out: | |
1203 | rtnl_unlock(); | |
1204 | return ret; | |
1205 | } | |
1206 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1207 | bonding_show_primary_reselect, | |
1208 | bonding_store_primary_reselect); | |
1209 | ||
b76cdba9 MW |
1210 | /* |
1211 | * Show and set the use_carrier flag. | |
1212 | */ | |
43cb76d9 GKH |
1213 | static ssize_t bonding_show_carrier(struct device *d, |
1214 | struct device_attribute *attr, | |
1215 | char *buf) | |
b76cdba9 | 1216 | { |
43cb76d9 | 1217 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1218 | |
7bd46508 | 1219 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1220 | } |
1221 | ||
43cb76d9 GKH |
1222 | static ssize_t bonding_store_carrier(struct device *d, |
1223 | struct device_attribute *attr, | |
1224 | const char *buf, size_t count) | |
b76cdba9 MW |
1225 | { |
1226 | int new_value, ret = count; | |
43cb76d9 | 1227 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1228 | |
1229 | ||
1230 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1231 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1232 | bond->dev->name); |
1233 | ret = -EINVAL; | |
1234 | goto out; | |
1235 | } | |
1236 | if ((new_value == 0) || (new_value == 1)) { | |
1237 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1238 | pr_info("%s: Setting use_carrier to %d.\n", |
1239 | bond->dev->name, new_value); | |
b76cdba9 | 1240 | } else { |
a4aee5c8 JP |
1241 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1242 | bond->dev->name, new_value); | |
b76cdba9 MW |
1243 | } |
1244 | out: | |
1245 | return count; | |
1246 | } | |
3d632c3f SH |
1247 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1248 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1249 | |
1250 | ||
1251 | /* | |
1252 | * Show and set currently active_slave. | |
1253 | */ | |
43cb76d9 GKH |
1254 | static ssize_t bonding_show_active_slave(struct device *d, |
1255 | struct device_attribute *attr, | |
1256 | char *buf) | |
b76cdba9 MW |
1257 | { |
1258 | struct slave *curr; | |
43cb76d9 | 1259 | struct bonding *bond = to_bond(d); |
16cd0160 | 1260 | int count = 0; |
b76cdba9 | 1261 | |
b76cdba9 MW |
1262 | read_lock(&bond->curr_slave_lock); |
1263 | curr = bond->curr_active_slave; | |
1264 | read_unlock(&bond->curr_slave_lock); | |
1265 | ||
1266 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1267 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1268 | return count; |
1269 | } | |
1270 | ||
43cb76d9 GKH |
1271 | static ssize_t bonding_store_active_slave(struct device *d, |
1272 | struct device_attribute *attr, | |
1273 | const char *buf, size_t count) | |
b76cdba9 MW |
1274 | { |
1275 | int i; | |
1276 | struct slave *slave; | |
3d632c3f SH |
1277 | struct slave *old_active = NULL; |
1278 | struct slave *new_active = NULL; | |
43cb76d9 | 1279 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1280 | |
496a60cd EB |
1281 | if (!rtnl_trylock()) |
1282 | return restart_syscall(); | |
e934dd78 JV |
1283 | read_lock(&bond->lock); |
1284 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1285 | |
3d632c3f | 1286 | if (!USES_PRIMARY(bond->params.mode)) |
a4aee5c8 | 1287 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f SH |
1288 | bond->dev->name, bond->dev->name, bond->params.mode); |
1289 | else { | |
b76cdba9 MW |
1290 | bond_for_each_slave(bond, slave, i) { |
1291 | if (strnicmp | |
1292 | (slave->dev->name, buf, | |
1293 | strlen(slave->dev->name)) == 0) { | |
1294 | old_active = bond->curr_active_slave; | |
1295 | new_active = slave; | |
a50d8de2 | 1296 | if (new_active == old_active) { |
b76cdba9 | 1297 | /* do nothing */ |
a4aee5c8 JP |
1298 | pr_info("%s: %s is already the current active slave.\n", |
1299 | bond->dev->name, | |
1300 | slave->dev->name); | |
b76cdba9 MW |
1301 | goto out; |
1302 | } | |
1303 | else { | |
1304 | if ((new_active) && | |
1305 | (old_active) && | |
1306 | (new_active->link == BOND_LINK_UP) && | |
1307 | IS_UP(new_active->dev)) { | |
a4aee5c8 JP |
1308 | pr_info("%s: Setting %s as active slave.\n", |
1309 | bond->dev->name, | |
1310 | slave->dev->name); | |
e5e2a8fd | 1311 | bond_change_active_slave(bond, new_active); |
b76cdba9 MW |
1312 | } |
1313 | else { | |
a4aee5c8 JP |
1314 | pr_info("%s: Could not set %s as active slave; either %s is down or the link is down.\n", |
1315 | bond->dev->name, | |
1316 | slave->dev->name, | |
e5e2a8fd | 1317 | slave->dev->name); |
b76cdba9 MW |
1318 | } |
1319 | goto out; | |
1320 | } | |
1321 | } | |
1322 | } | |
1323 | ||
1324 | /* if we got here, then we didn't match the name of any slave */ | |
1325 | ||
1326 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
a4aee5c8 | 1327 | pr_info("%s: Setting active slave to None.\n", |
3d632c3f | 1328 | bond->dev->name); |
3418db7c | 1329 | bond->primary_slave = NULL; |
3d632c3f | 1330 | bond_select_active_slave(bond); |
b76cdba9 | 1331 | } else { |
a4aee5c8 | 1332 | pr_info("%s: Unable to set %.*s as active slave as it is not a slave.\n", |
3d632c3f | 1333 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
1334 | } |
1335 | } | |
3d632c3f | 1336 | out: |
e934dd78 JV |
1337 | write_unlock_bh(&bond->curr_slave_lock); |
1338 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1339 | rtnl_unlock(); |
1340 | ||
b76cdba9 MW |
1341 | return count; |
1342 | ||
1343 | } | |
3d632c3f SH |
1344 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1345 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1346 | |
1347 | ||
1348 | /* | |
1349 | * Show link status of the bond interface. | |
1350 | */ | |
43cb76d9 GKH |
1351 | static ssize_t bonding_show_mii_status(struct device *d, |
1352 | struct device_attribute *attr, | |
1353 | char *buf) | |
b76cdba9 MW |
1354 | { |
1355 | struct slave *curr; | |
43cb76d9 | 1356 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1357 | |
1358 | read_lock(&bond->curr_slave_lock); | |
1359 | curr = bond->curr_active_slave; | |
1360 | read_unlock(&bond->curr_slave_lock); | |
1361 | ||
3d632c3f | 1362 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1363 | } |
43cb76d9 | 1364 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 MW |
1365 | |
1366 | ||
1367 | /* | |
1368 | * Show current 802.3ad aggregator ID. | |
1369 | */ | |
43cb76d9 GKH |
1370 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1371 | struct device_attribute *attr, | |
1372 | char *buf) | |
b76cdba9 MW |
1373 | { |
1374 | int count = 0; | |
43cb76d9 | 1375 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1376 | |
1377 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1378 | struct ad_info ad_info; | |
3d632c3f SH |
1379 | count = sprintf(buf, "%d\n", |
1380 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1381 | ? 0 : ad_info.aggregator_id); | |
b76cdba9 | 1382 | } |
b76cdba9 MW |
1383 | |
1384 | return count; | |
1385 | } | |
43cb76d9 | 1386 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1387 | |
1388 | ||
1389 | /* | |
1390 | * Show number of active 802.3ad ports. | |
1391 | */ | |
43cb76d9 GKH |
1392 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1393 | struct device_attribute *attr, | |
1394 | char *buf) | |
b76cdba9 MW |
1395 | { |
1396 | int count = 0; | |
43cb76d9 | 1397 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1398 | |
1399 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1400 | struct ad_info ad_info; | |
3d632c3f SH |
1401 | count = sprintf(buf, "%d\n", |
1402 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1403 | ? 0 : ad_info.ports); | |
b76cdba9 | 1404 | } |
b76cdba9 MW |
1405 | |
1406 | return count; | |
1407 | } | |
43cb76d9 | 1408 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1409 | |
1410 | ||
1411 | /* | |
1412 | * Show current 802.3ad actor key. | |
1413 | */ | |
43cb76d9 GKH |
1414 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1415 | struct device_attribute *attr, | |
1416 | char *buf) | |
b76cdba9 MW |
1417 | { |
1418 | int count = 0; | |
43cb76d9 | 1419 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1420 | |
1421 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1422 | struct ad_info ad_info; | |
3d632c3f SH |
1423 | count = sprintf(buf, "%d\n", |
1424 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1425 | ? 0 : ad_info.actor_key); | |
b76cdba9 | 1426 | } |
b76cdba9 MW |
1427 | |
1428 | return count; | |
1429 | } | |
43cb76d9 | 1430 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1431 | |
1432 | ||
1433 | /* | |
1434 | * Show current 802.3ad partner key. | |
1435 | */ | |
43cb76d9 GKH |
1436 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1437 | struct device_attribute *attr, | |
1438 | char *buf) | |
b76cdba9 MW |
1439 | { |
1440 | int count = 0; | |
43cb76d9 | 1441 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1442 | |
1443 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1444 | struct ad_info ad_info; | |
3d632c3f SH |
1445 | count = sprintf(buf, "%d\n", |
1446 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1447 | ? 0 : ad_info.partner_key); | |
b76cdba9 | 1448 | } |
b76cdba9 MW |
1449 | |
1450 | return count; | |
1451 | } | |
43cb76d9 | 1452 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1453 | |
1454 | ||
1455 | /* | |
1456 | * Show current 802.3ad partner mac. | |
1457 | */ | |
43cb76d9 GKH |
1458 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1459 | struct device_attribute *attr, | |
1460 | char *buf) | |
b76cdba9 MW |
1461 | { |
1462 | int count = 0; | |
43cb76d9 | 1463 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1464 | |
1465 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1466 | struct ad_info ad_info; | |
3d632c3f | 1467 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1468 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1469 | } |
b76cdba9 MW |
1470 | |
1471 | return count; | |
1472 | } | |
43cb76d9 | 1473 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 MW |
1474 | |
1475 | ||
1476 | ||
1477 | static struct attribute *per_bond_attrs[] = { | |
43cb76d9 GKH |
1478 | &dev_attr_slaves.attr, |
1479 | &dev_attr_mode.attr, | |
dd957c57 | 1480 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1481 | &dev_attr_arp_validate.attr, |
1482 | &dev_attr_arp_interval.attr, | |
1483 | &dev_attr_arp_ip_target.attr, | |
1484 | &dev_attr_downdelay.attr, | |
1485 | &dev_attr_updelay.attr, | |
1486 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1487 | &dev_attr_ad_select.attr, |
43cb76d9 | 1488 | &dev_attr_xmit_hash_policy.attr, |
7893b249 | 1489 | &dev_attr_num_grat_arp.attr, |
305d552a | 1490 | &dev_attr_num_unsol_na.attr, |
43cb76d9 GKH |
1491 | &dev_attr_miimon.attr, |
1492 | &dev_attr_primary.attr, | |
a549952a | 1493 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1494 | &dev_attr_use_carrier.attr, |
1495 | &dev_attr_active_slave.attr, | |
1496 | &dev_attr_mii_status.attr, | |
1497 | &dev_attr_ad_aggregator.attr, | |
1498 | &dev_attr_ad_num_ports.attr, | |
1499 | &dev_attr_ad_actor_key.attr, | |
1500 | &dev_attr_ad_partner_key.attr, | |
1501 | &dev_attr_ad_partner_mac.attr, | |
b76cdba9 MW |
1502 | NULL, |
1503 | }; | |
1504 | ||
1505 | static struct attribute_group bonding_group = { | |
1506 | .name = "bonding", | |
1507 | .attrs = per_bond_attrs, | |
1508 | }; | |
1509 | ||
1510 | /* | |
1511 | * Initialize sysfs. This sets up the bonding_masters file in | |
1512 | * /sys/class/net. | |
1513 | */ | |
1514 | int bond_create_sysfs(void) | |
1515 | { | |
b8a9787e | 1516 | int ret; |
b76cdba9 | 1517 | |
b8a9787e | 1518 | ret = netdev_class_create_file(&class_attr_bonding_masters); |
877cbd36 JV |
1519 | /* |
1520 | * Permit multiple loads of the module by ignoring failures to | |
1521 | * create the bonding_masters sysfs file. Bonding devices | |
1522 | * created by second or subsequent loads of the module will | |
1523 | * not be listed in, or controllable by, bonding_masters, but | |
1524 | * will have the usual "bonding" sysfs directory. | |
1525 | * | |
1526 | * This is done to preserve backwards compatibility for | |
1527 | * initscripts/sysconfig, which load bonding multiple times to | |
1528 | * configure multiple bonding devices. | |
1529 | */ | |
1530 | if (ret == -EEXIST) { | |
38d2f38b SH |
1531 | /* Is someone being kinky and naming a device bonding_master? */ |
1532 | if (__dev_get_by_name(&init_net, | |
1533 | class_attr_bonding_masters.attr.name)) | |
a4aee5c8 | 1534 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1535 | class_attr_bonding_masters.attr.name); |
130aa61a | 1536 | ret = 0; |
877cbd36 | 1537 | } |
b76cdba9 MW |
1538 | |
1539 | return ret; | |
1540 | ||
1541 | } | |
1542 | ||
1543 | /* | |
1544 | * Remove /sys/class/net/bonding_masters. | |
1545 | */ | |
1546 | void bond_destroy_sysfs(void) | |
1547 | { | |
b8a9787e | 1548 | netdev_class_remove_file(&class_attr_bonding_masters); |
b76cdba9 MW |
1549 | } |
1550 | ||
1551 | /* | |
1552 | * Initialize sysfs for each bond. This sets up and registers | |
1553 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1554 | */ | |
6151b3d4 | 1555 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1556 | { |
6151b3d4 | 1557 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1558 | } |
1559 |