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. | |
f9f3545e JP |
214 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
215 | * All hard work should be done there. | |
b76cdba9 | 216 | */ |
43cb76d9 GKH |
217 | static ssize_t bonding_store_slaves(struct device *d, |
218 | struct device_attribute *attr, | |
219 | const char *buffer, size_t count) | |
b76cdba9 MW |
220 | { |
221 | char command[IFNAMSIZ + 1] = { 0, }; | |
222 | char *ifname; | |
f9f3545e JP |
223 | int res, ret = count; |
224 | struct net_device *dev; | |
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 | ||
496a60cd EB |
233 | if (!rtnl_trylock()) |
234 | return restart_syscall(); | |
027ea041 | 235 | |
b76cdba9 MW |
236 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
237 | ifname = command + 1; | |
238 | if ((strlen(command) <= 1) || | |
239 | !dev_valid_name(ifname)) | |
240 | goto err_no_cmd; | |
241 | ||
f9f3545e JP |
242 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
243 | if (!dev) { | |
244 | pr_info("%s: Interface %s does not exist!\n", | |
245 | bond->dev->name, ifname); | |
246 | ret = -ENODEV; | |
247 | goto out; | |
248 | } | |
b76cdba9 | 249 | |
f9f3545e JP |
250 | switch (command[0]) { |
251 | case '+': | |
252 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 253 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 254 | break; |
3d632c3f | 255 | |
f9f3545e JP |
256 | case '-': |
257 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
258 | res = bond_release(bond->dev, dev); | |
259 | break; | |
b76cdba9 | 260 | |
f9f3545e JP |
261 | default: |
262 | goto err_no_cmd; | |
b76cdba9 MW |
263 | } |
264 | ||
f9f3545e JP |
265 | if (res) |
266 | ret = res; | |
267 | goto out; | |
268 | ||
b76cdba9 | 269 | err_no_cmd: |
a4aee5c8 JP |
270 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
271 | bond->dev->name); | |
b76cdba9 MW |
272 | ret = -EPERM; |
273 | ||
274 | out: | |
027ea041 | 275 | rtnl_unlock(); |
b76cdba9 MW |
276 | return ret; |
277 | } | |
278 | ||
3d632c3f SH |
279 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
280 | bonding_store_slaves); | |
b76cdba9 MW |
281 | |
282 | /* | |
283 | * Show and set the bonding mode. The bond interface must be down to | |
284 | * change the mode. | |
285 | */ | |
43cb76d9 GKH |
286 | static ssize_t bonding_show_mode(struct device *d, |
287 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 288 | { |
43cb76d9 | 289 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
290 | |
291 | return sprintf(buf, "%s %d\n", | |
292 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 293 | bond->params.mode); |
b76cdba9 MW |
294 | } |
295 | ||
43cb76d9 GKH |
296 | static ssize_t bonding_store_mode(struct device *d, |
297 | struct device_attribute *attr, | |
298 | const char *buf, size_t count) | |
b76cdba9 MW |
299 | { |
300 | int new_value, ret = count; | |
43cb76d9 | 301 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
302 | |
303 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
304 | pr_err("unable to update mode of %s because interface is up.\n", |
305 | bond->dev->name); | |
b76cdba9 MW |
306 | ret = -EPERM; |
307 | goto out; | |
308 | } | |
309 | ||
ece95f7f | 310 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 311 | if (new_value < 0) { |
a4aee5c8 JP |
312 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
313 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
314 | ret = -EINVAL; |
315 | goto out; | |
316 | } else { | |
8f903c70 JV |
317 | if (bond->params.mode == BOND_MODE_8023AD) |
318 | bond_unset_master_3ad_flags(bond); | |
319 | ||
320 | if (bond->params.mode == BOND_MODE_ALB) | |
321 | bond_unset_master_alb_flags(bond); | |
322 | ||
b76cdba9 MW |
323 | bond->params.mode = new_value; |
324 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 JP |
325 | pr_info("%s: setting mode to %s (%d).\n", |
326 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
3d632c3f | 327 | new_value); |
b76cdba9 MW |
328 | } |
329 | out: | |
330 | return ret; | |
331 | } | |
3d632c3f SH |
332 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
333 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
334 | |
335 | /* | |
3d632c3f SH |
336 | * Show and set the bonding transmit hash method. |
337 | * The bond interface must be down to change the xmit hash policy. | |
b76cdba9 | 338 | */ |
43cb76d9 GKH |
339 | static ssize_t bonding_show_xmit_hash(struct device *d, |
340 | struct device_attribute *attr, | |
341 | char *buf) | |
b76cdba9 | 342 | { |
43cb76d9 | 343 | struct bonding *bond = to_bond(d); |
b76cdba9 | 344 | |
8e4b9329 WF |
345 | return sprintf(buf, "%s %d\n", |
346 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
347 | bond->params.xmit_policy); | |
b76cdba9 MW |
348 | } |
349 | ||
43cb76d9 GKH |
350 | static ssize_t bonding_store_xmit_hash(struct device *d, |
351 | struct device_attribute *attr, | |
352 | const char *buf, size_t count) | |
b76cdba9 MW |
353 | { |
354 | int new_value, ret = count; | |
43cb76d9 | 355 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
356 | |
357 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 358 | pr_err("%s: Interface is up. Unable to update xmit policy.\n", |
b76cdba9 MW |
359 | bond->dev->name); |
360 | ret = -EPERM; | |
361 | goto out; | |
362 | } | |
363 | ||
ece95f7f | 364 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 365 | if (new_value < 0) { |
a4aee5c8 | 366 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
367 | bond->dev->name, |
368 | (int)strlen(buf) - 1, buf); | |
369 | ret = -EINVAL; | |
370 | goto out; | |
371 | } else { | |
372 | bond->params.xmit_policy = new_value; | |
373 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 | 374 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
375 | bond->dev->name, |
376 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 MW |
377 | } |
378 | out: | |
379 | return ret; | |
380 | } | |
3d632c3f SH |
381 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
382 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 383 | |
f5b2b966 JV |
384 | /* |
385 | * Show and set arp_validate. | |
386 | */ | |
43cb76d9 GKH |
387 | static ssize_t bonding_show_arp_validate(struct device *d, |
388 | struct device_attribute *attr, | |
389 | char *buf) | |
f5b2b966 | 390 | { |
43cb76d9 | 391 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
392 | |
393 | return sprintf(buf, "%s %d\n", | |
394 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 395 | bond->params.arp_validate); |
f5b2b966 JV |
396 | } |
397 | ||
43cb76d9 GKH |
398 | static ssize_t bonding_store_arp_validate(struct device *d, |
399 | struct device_attribute *attr, | |
400 | const char *buf, size_t count) | |
f5b2b966 JV |
401 | { |
402 | int new_value; | |
43cb76d9 | 403 | struct bonding *bond = to_bond(d); |
f5b2b966 | 404 | |
ece95f7f | 405 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 406 | if (new_value < 0) { |
a4aee5c8 | 407 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 JV |
408 | bond->dev->name, buf); |
409 | return -EINVAL; | |
410 | } | |
411 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
a4aee5c8 | 412 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 JV |
413 | bond->dev->name); |
414 | return -EINVAL; | |
415 | } | |
a4aee5c8 JP |
416 | pr_info("%s: setting arp_validate to %s (%d).\n", |
417 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
418 | new_value); | |
f5b2b966 | 419 | |
3d632c3f | 420 | if (!bond->params.arp_validate && new_value) |
f5b2b966 | 421 | bond_register_arp(bond); |
3d632c3f | 422 | else if (bond->params.arp_validate && !new_value) |
f5b2b966 | 423 | bond_unregister_arp(bond); |
f5b2b966 JV |
424 | |
425 | bond->params.arp_validate = new_value; | |
426 | ||
427 | return count; | |
428 | } | |
429 | ||
3d632c3f SH |
430 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
431 | bonding_store_arp_validate); | |
f5b2b966 | 432 | |
dd957c57 JV |
433 | /* |
434 | * Show and store fail_over_mac. User only allowed to change the | |
435 | * value when there are no slaves. | |
436 | */ | |
3d632c3f SH |
437 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
438 | struct device_attribute *attr, | |
439 | char *buf) | |
dd957c57 JV |
440 | { |
441 | struct bonding *bond = to_bond(d); | |
442 | ||
3915c1e8 JV |
443 | return sprintf(buf, "%s %d\n", |
444 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
445 | bond->params.fail_over_mac); | |
dd957c57 JV |
446 | } |
447 | ||
3d632c3f SH |
448 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
449 | struct device_attribute *attr, | |
450 | const char *buf, size_t count) | |
dd957c57 JV |
451 | { |
452 | int new_value; | |
dd957c57 JV |
453 | struct bonding *bond = to_bond(d); |
454 | ||
455 | if (bond->slave_cnt != 0) { | |
a4aee5c8 | 456 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 457 | bond->dev->name); |
3915c1e8 | 458 | return -EPERM; |
dd957c57 JV |
459 | } |
460 | ||
3915c1e8 JV |
461 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
462 | if (new_value < 0) { | |
a4aee5c8 | 463 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 JV |
464 | bond->dev->name, buf); |
465 | return -EINVAL; | |
dd957c57 JV |
466 | } |
467 | ||
3915c1e8 | 468 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
469 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
470 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
471 | new_value); | |
3915c1e8 JV |
472 | |
473 | return count; | |
dd957c57 JV |
474 | } |
475 | ||
3d632c3f SH |
476 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
477 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 478 | |
b76cdba9 MW |
479 | /* |
480 | * Show and set the arp timer interval. There are two tricky bits | |
481 | * here. First, if ARP monitoring is activated, then we must disable | |
482 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
483 | * start it. | |
484 | */ | |
43cb76d9 GKH |
485 | static ssize_t bonding_show_arp_interval(struct device *d, |
486 | struct device_attribute *attr, | |
487 | char *buf) | |
b76cdba9 | 488 | { |
43cb76d9 | 489 | struct bonding *bond = to_bond(d); |
b76cdba9 | 490 | |
7bd46508 | 491 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
492 | } |
493 | ||
43cb76d9 GKH |
494 | static ssize_t bonding_store_arp_interval(struct device *d, |
495 | struct device_attribute *attr, | |
496 | const char *buf, size_t count) | |
b76cdba9 MW |
497 | { |
498 | int new_value, ret = count; | |
43cb76d9 | 499 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
500 | |
501 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 502 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
503 | bond->dev->name); |
504 | ret = -EINVAL; | |
505 | goto out; | |
506 | } | |
507 | if (new_value < 0) { | |
a4aee5c8 | 508 | pr_err("%s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", |
b76cdba9 MW |
509 | bond->dev->name, new_value, INT_MAX); |
510 | ret = -EINVAL; | |
511 | goto out; | |
512 | } | |
513 | ||
a4aee5c8 JP |
514 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
515 | bond->dev->name, new_value); | |
b76cdba9 | 516 | bond->params.arp_interval = new_value; |
6cf3f41e JV |
517 | if (bond->params.arp_interval) |
518 | bond->dev->priv_flags |= IFF_MASTER_ARPMON; | |
b76cdba9 | 519 | if (bond->params.miimon) { |
a4aee5c8 JP |
520 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", |
521 | bond->dev->name, bond->dev->name); | |
b76cdba9 | 522 | bond->params.miimon = 0; |
1b76b316 JV |
523 | if (delayed_work_pending(&bond->mii_work)) { |
524 | cancel_delayed_work(&bond->mii_work); | |
525 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
526 | } |
527 | } | |
528 | if (!bond->params.arp_targets[0]) { | |
a4aee5c8 JP |
529 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", |
530 | bond->dev->name); | |
b76cdba9 MW |
531 | } |
532 | if (bond->dev->flags & IFF_UP) { | |
533 | /* If the interface is up, we may need to fire off | |
534 | * the ARP timer. If the interface is down, the | |
535 | * timer will get fired off when the open function | |
536 | * is called. | |
537 | */ | |
1b76b316 JV |
538 | if (!delayed_work_pending(&bond->arp_work)) { |
539 | if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) | |
540 | INIT_DELAYED_WORK(&bond->arp_work, | |
541 | bond_activebackup_arp_mon); | |
542 | else | |
543 | INIT_DELAYED_WORK(&bond->arp_work, | |
544 | bond_loadbalance_arp_mon); | |
545 | ||
546 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
b76cdba9 MW |
547 | } |
548 | } | |
549 | ||
550 | out: | |
551 | return ret; | |
552 | } | |
3d632c3f SH |
553 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
554 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
555 | |
556 | /* | |
557 | * Show and set the arp targets. | |
558 | */ | |
43cb76d9 GKH |
559 | static ssize_t bonding_show_arp_targets(struct device *d, |
560 | struct device_attribute *attr, | |
561 | char *buf) | |
b76cdba9 MW |
562 | { |
563 | int i, res = 0; | |
43cb76d9 | 564 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
565 | |
566 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
567 | if (bond->params.arp_targets[i]) | |
63779436 HH |
568 | res += sprintf(buf + res, "%pI4 ", |
569 | &bond->params.arp_targets[i]); | |
b76cdba9 | 570 | } |
1dcdcd69 WF |
571 | if (res) |
572 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
573 | return res; |
574 | } | |
575 | ||
43cb76d9 GKH |
576 | static ssize_t bonding_store_arp_targets(struct device *d, |
577 | struct device_attribute *attr, | |
578 | const char *buf, size_t count) | |
b76cdba9 | 579 | { |
d3bb52b0 | 580 | __be32 newtarget; |
b76cdba9 | 581 | int i = 0, done = 0, ret = count; |
43cb76d9 | 582 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 583 | __be32 *targets; |
b76cdba9 MW |
584 | |
585 | targets = bond->params.arp_targets; | |
586 | newtarget = in_aton(buf + 1); | |
587 | /* look for adds */ | |
588 | if (buf[0] == '+') { | |
d3bb52b0 | 589 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 590 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 591 | bond->dev->name, &newtarget); |
b76cdba9 MW |
592 | ret = -EINVAL; |
593 | goto out; | |
594 | } | |
595 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 596 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 597 | if (targets[i] == newtarget) { /* duplicate */ |
a4aee5c8 | 598 | pr_err("%s: ARP target %pI4 is already present\n", |
63779436 | 599 | bond->dev->name, &newtarget); |
b76cdba9 MW |
600 | ret = -EINVAL; |
601 | goto out; | |
602 | } | |
5a31bec0 | 603 | if (targets[i] == 0) { |
a4aee5c8 JP |
604 | pr_info("%s: adding ARP target %pI4.\n", |
605 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
606 | done = 1; |
607 | targets[i] = newtarget; | |
608 | } | |
609 | } | |
610 | if (!done) { | |
a4aee5c8 | 611 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 MW |
612 | bond->dev->name); |
613 | ret = -EINVAL; | |
614 | goto out; | |
615 | } | |
616 | ||
3d632c3f | 617 | } else if (buf[0] == '-') { |
d3bb52b0 | 618 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 619 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 620 | bond->dev->name, &newtarget); |
b76cdba9 MW |
621 | ret = -EINVAL; |
622 | goto out; | |
623 | } | |
624 | ||
5a31bec0 | 625 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 626 | if (targets[i] == newtarget) { |
5a31bec0 | 627 | int j; |
a4aee5c8 JP |
628 | pr_info("%s: removing ARP target %pI4.\n", |
629 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
630 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
631 | targets[j] = targets[j+1]; | |
632 | ||
633 | targets[j] = 0; | |
b76cdba9 MW |
634 | done = 1; |
635 | } | |
636 | } | |
637 | if (!done) { | |
a4aee5c8 JP |
638 | pr_info("%s: unable to remove nonexistent ARP target %pI4.\n", |
639 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
640 | ret = -EINVAL; |
641 | goto out; | |
642 | } | |
3d632c3f | 643 | } else { |
a4aee5c8 JP |
644 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
645 | bond->dev->name); | |
b76cdba9 MW |
646 | ret = -EPERM; |
647 | goto out; | |
648 | } | |
649 | ||
650 | out: | |
651 | return ret; | |
652 | } | |
43cb76d9 | 653 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
654 | |
655 | /* | |
656 | * Show and set the up and down delays. These must be multiples of the | |
657 | * MII monitoring value, and are stored internally as the multiplier. | |
658 | * Thus, we must translate to MS for the real world. | |
659 | */ | |
43cb76d9 GKH |
660 | static ssize_t bonding_show_downdelay(struct device *d, |
661 | struct device_attribute *attr, | |
662 | char *buf) | |
b76cdba9 | 663 | { |
43cb76d9 | 664 | struct bonding *bond = to_bond(d); |
b76cdba9 | 665 | |
7bd46508 | 666 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
667 | } |
668 | ||
43cb76d9 GKH |
669 | static ssize_t bonding_store_downdelay(struct device *d, |
670 | struct device_attribute *attr, | |
671 | const char *buf, size_t count) | |
b76cdba9 MW |
672 | { |
673 | int new_value, ret = count; | |
43cb76d9 | 674 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
675 | |
676 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 677 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
678 | bond->dev->name); |
679 | ret = -EPERM; | |
680 | goto out; | |
681 | } | |
682 | ||
683 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 684 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
685 | ret = -EINVAL; |
686 | goto out; | |
687 | } | |
688 | if (new_value < 0) { | |
a4aee5c8 | 689 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
690 | bond->dev->name, new_value, 1, INT_MAX); |
691 | ret = -EINVAL; | |
692 | goto out; | |
693 | } else { | |
694 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 695 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
696 | bond->dev->name, new_value, |
697 | bond->params.miimon, | |
698 | (new_value / bond->params.miimon) * | |
699 | bond->params.miimon); | |
b76cdba9 MW |
700 | } |
701 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
702 | pr_info("%s: Setting down delay to %d.\n", |
703 | bond->dev->name, | |
704 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
705 | |
706 | } | |
707 | ||
708 | out: | |
709 | return ret; | |
710 | } | |
3d632c3f SH |
711 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
712 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 713 | |
43cb76d9 GKH |
714 | static ssize_t bonding_show_updelay(struct device *d, |
715 | struct device_attribute *attr, | |
716 | char *buf) | |
b76cdba9 | 717 | { |
43cb76d9 | 718 | struct bonding *bond = to_bond(d); |
b76cdba9 | 719 | |
7bd46508 | 720 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
721 | |
722 | } | |
723 | ||
43cb76d9 GKH |
724 | static ssize_t bonding_store_updelay(struct device *d, |
725 | struct device_attribute *attr, | |
726 | const char *buf, size_t count) | |
b76cdba9 MW |
727 | { |
728 | int new_value, ret = count; | |
43cb76d9 | 729 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
730 | |
731 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 732 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
733 | bond->dev->name); |
734 | ret = -EPERM; | |
735 | goto out; | |
736 | } | |
737 | ||
738 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 739 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
740 | bond->dev->name); |
741 | ret = -EINVAL; | |
742 | goto out; | |
743 | } | |
744 | if (new_value < 0) { | |
a4aee5c8 | 745 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
746 | bond->dev->name, new_value, 1, INT_MAX); |
747 | ret = -EINVAL; | |
748 | goto out; | |
749 | } else { | |
750 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 751 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
752 | bond->dev->name, new_value, |
753 | bond->params.miimon, | |
754 | (new_value / bond->params.miimon) * | |
755 | bond->params.miimon); | |
b76cdba9 MW |
756 | } |
757 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
758 | pr_info("%s: Setting up delay to %d.\n", |
759 | bond->dev->name, | |
760 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
761 | } |
762 | ||
763 | out: | |
764 | return ret; | |
765 | } | |
3d632c3f SH |
766 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
767 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
768 | |
769 | /* | |
770 | * Show and set the LACP interval. Interface must be down, and the mode | |
771 | * must be set to 802.3ad mode. | |
772 | */ | |
43cb76d9 GKH |
773 | static ssize_t bonding_show_lacp(struct device *d, |
774 | struct device_attribute *attr, | |
775 | char *buf) | |
b76cdba9 | 776 | { |
43cb76d9 | 777 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
778 | |
779 | return sprintf(buf, "%s %d\n", | |
780 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 781 | bond->params.lacp_fast); |
b76cdba9 MW |
782 | } |
783 | ||
43cb76d9 GKH |
784 | static ssize_t bonding_store_lacp(struct device *d, |
785 | struct device_attribute *attr, | |
786 | const char *buf, size_t count) | |
b76cdba9 MW |
787 | { |
788 | int new_value, ret = count; | |
43cb76d9 | 789 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
790 | |
791 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 792 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
793 | bond->dev->name); |
794 | ret = -EPERM; | |
795 | goto out; | |
796 | } | |
797 | ||
798 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 799 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
800 | bond->dev->name); |
801 | ret = -EPERM; | |
802 | goto out; | |
803 | } | |
804 | ||
ece95f7f | 805 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
806 | |
807 | if ((new_value == 1) || (new_value == 0)) { | |
808 | bond->params.lacp_fast = new_value; | |
a4aee5c8 | 809 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
810 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
811 | new_value); | |
b76cdba9 | 812 | } else { |
a4aee5c8 | 813 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 814 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
815 | ret = -EINVAL; |
816 | } | |
817 | out: | |
818 | return ret; | |
819 | } | |
3d632c3f SH |
820 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
821 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 822 | |
fd989c83 JV |
823 | static ssize_t bonding_show_ad_select(struct device *d, |
824 | struct device_attribute *attr, | |
825 | char *buf) | |
826 | { | |
827 | struct bonding *bond = to_bond(d); | |
828 | ||
829 | return sprintf(buf, "%s %d\n", | |
830 | ad_select_tbl[bond->params.ad_select].modename, | |
831 | bond->params.ad_select); | |
832 | } | |
833 | ||
834 | ||
835 | static ssize_t bonding_store_ad_select(struct device *d, | |
836 | struct device_attribute *attr, | |
837 | const char *buf, size_t count) | |
838 | { | |
839 | int new_value, ret = count; | |
840 | struct bonding *bond = to_bond(d); | |
841 | ||
842 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
843 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
844 | bond->dev->name); | |
fd989c83 JV |
845 | ret = -EPERM; |
846 | goto out; | |
847 | } | |
848 | ||
849 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
850 | ||
851 | if (new_value != -1) { | |
852 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
853 | pr_info("%s: Setting ad_select to %s (%d).\n", |
854 | bond->dev->name, ad_select_tbl[new_value].modename, | |
855 | new_value); | |
fd989c83 | 856 | } else { |
a4aee5c8 | 857 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
858 | bond->dev->name, (int)strlen(buf) - 1, buf); |
859 | ret = -EINVAL; | |
860 | } | |
861 | out: | |
862 | return ret; | |
863 | } | |
3d632c3f SH |
864 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
865 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 866 | |
7893b249 MS |
867 | /* |
868 | * Show and set the number of grat ARP to send after a failover event. | |
869 | */ | |
870 | static ssize_t bonding_show_n_grat_arp(struct device *d, | |
871 | struct device_attribute *attr, | |
872 | char *buf) | |
873 | { | |
874 | struct bonding *bond = to_bond(d); | |
875 | ||
876 | return sprintf(buf, "%d\n", bond->params.num_grat_arp); | |
877 | } | |
878 | ||
879 | static ssize_t bonding_store_n_grat_arp(struct device *d, | |
880 | struct device_attribute *attr, | |
881 | const char *buf, size_t count) | |
882 | { | |
883 | int new_value, ret = count; | |
884 | struct bonding *bond = to_bond(d); | |
885 | ||
886 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 887 | pr_err("%s: no num_grat_arp value specified.\n", |
7893b249 MS |
888 | bond->dev->name); |
889 | ret = -EINVAL; | |
890 | goto out; | |
891 | } | |
892 | if (new_value < 0 || new_value > 255) { | |
a4aee5c8 | 893 | pr_err("%s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n", |
7893b249 MS |
894 | bond->dev->name, new_value); |
895 | ret = -EINVAL; | |
896 | goto out; | |
897 | } else { | |
898 | bond->params.num_grat_arp = new_value; | |
899 | } | |
900 | out: | |
901 | return ret; | |
902 | } | |
3d632c3f SH |
903 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, |
904 | bonding_show_n_grat_arp, bonding_store_n_grat_arp); | |
305d552a BH |
905 | |
906 | /* | |
3d632c3f | 907 | * Show and set the number of unsolicited NA's to send after a failover event. |
305d552a BH |
908 | */ |
909 | static ssize_t bonding_show_n_unsol_na(struct device *d, | |
910 | struct device_attribute *attr, | |
911 | char *buf) | |
912 | { | |
913 | struct bonding *bond = to_bond(d); | |
914 | ||
915 | return sprintf(buf, "%d\n", bond->params.num_unsol_na); | |
916 | } | |
917 | ||
918 | static ssize_t bonding_store_n_unsol_na(struct device *d, | |
919 | struct device_attribute *attr, | |
920 | const char *buf, size_t count) | |
921 | { | |
922 | int new_value, ret = count; | |
923 | struct bonding *bond = to_bond(d); | |
924 | ||
925 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 926 | pr_err("%s: no num_unsol_na value specified.\n", |
305d552a BH |
927 | bond->dev->name); |
928 | ret = -EINVAL; | |
929 | goto out; | |
930 | } | |
3d632c3f | 931 | |
305d552a | 932 | if (new_value < 0 || new_value > 255) { |
a4aee5c8 | 933 | pr_err("%s: Invalid num_unsol_na value %d not in range 0-255; rejected.\n", |
305d552a BH |
934 | bond->dev->name, new_value); |
935 | ret = -EINVAL; | |
936 | goto out; | |
3d632c3f | 937 | } else |
305d552a | 938 | bond->params.num_unsol_na = new_value; |
305d552a BH |
939 | out: |
940 | return ret; | |
941 | } | |
3d632c3f SH |
942 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, |
943 | bonding_show_n_unsol_na, bonding_store_n_unsol_na); | |
305d552a | 944 | |
b76cdba9 MW |
945 | /* |
946 | * Show and set the MII monitor interval. There are two tricky bits | |
947 | * here. First, if MII monitoring is activated, then we must disable | |
948 | * ARP monitoring. Second, if the timer isn't running, we must | |
949 | * start it. | |
950 | */ | |
43cb76d9 GKH |
951 | static ssize_t bonding_show_miimon(struct device *d, |
952 | struct device_attribute *attr, | |
953 | char *buf) | |
b76cdba9 | 954 | { |
43cb76d9 | 955 | struct bonding *bond = to_bond(d); |
b76cdba9 | 956 | |
7bd46508 | 957 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
958 | } |
959 | ||
43cb76d9 GKH |
960 | static ssize_t bonding_store_miimon(struct device *d, |
961 | struct device_attribute *attr, | |
962 | const char *buf, size_t count) | |
b76cdba9 MW |
963 | { |
964 | int new_value, ret = count; | |
43cb76d9 | 965 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
966 | |
967 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 968 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
969 | bond->dev->name); |
970 | ret = -EINVAL; | |
971 | goto out; | |
972 | } | |
973 | if (new_value < 0) { | |
a4aee5c8 | 974 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
975 | bond->dev->name, new_value, 1, INT_MAX); |
976 | ret = -EINVAL; | |
977 | goto out; | |
978 | } else { | |
a4aee5c8 JP |
979 | pr_info("%s: Setting MII monitoring interval to %d.\n", |
980 | bond->dev->name, new_value); | |
b76cdba9 | 981 | bond->params.miimon = new_value; |
3d632c3f | 982 | if (bond->params.updelay) |
a4aee5c8 JP |
983 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", |
984 | bond->dev->name, | |
985 | bond->params.updelay * bond->params.miimon); | |
3d632c3f | 986 | if (bond->params.downdelay) |
a4aee5c8 JP |
987 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", |
988 | bond->dev->name, | |
989 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 | 990 | if (bond->params.arp_interval) { |
a4aee5c8 JP |
991 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", |
992 | bond->dev->name); | |
b76cdba9 | 993 | bond->params.arp_interval = 0; |
6cf3f41e | 994 | bond->dev->priv_flags &= ~IFF_MASTER_ARPMON; |
f5b2b966 JV |
995 | if (bond->params.arp_validate) { |
996 | bond_unregister_arp(bond); | |
997 | bond->params.arp_validate = | |
998 | BOND_ARP_VALIDATE_NONE; | |
999 | } | |
1b76b316 JV |
1000 | if (delayed_work_pending(&bond->arp_work)) { |
1001 | cancel_delayed_work(&bond->arp_work); | |
1002 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
1003 | } |
1004 | } | |
1005 | ||
1006 | if (bond->dev->flags & IFF_UP) { | |
1007 | /* If the interface is up, we may need to fire off | |
1008 | * the MII timer. If the interface is down, the | |
1009 | * timer will get fired off when the open function | |
1010 | * is called. | |
1011 | */ | |
1b76b316 JV |
1012 | if (!delayed_work_pending(&bond->mii_work)) { |
1013 | INIT_DELAYED_WORK(&bond->mii_work, | |
1014 | bond_mii_monitor); | |
1015 | queue_delayed_work(bond->wq, | |
1016 | &bond->mii_work, 0); | |
b76cdba9 MW |
1017 | } |
1018 | } | |
1019 | } | |
1020 | out: | |
1021 | return ret; | |
1022 | } | |
3d632c3f SH |
1023 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1024 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1025 | |
1026 | /* | |
1027 | * Show and set the primary slave. The store function is much | |
1028 | * simpler than bonding_store_slaves function because it only needs to | |
1029 | * handle one interface name. | |
1030 | * The bond must be a mode that supports a primary for this be | |
1031 | * set. | |
1032 | */ | |
43cb76d9 GKH |
1033 | static ssize_t bonding_show_primary(struct device *d, |
1034 | struct device_attribute *attr, | |
1035 | char *buf) | |
b76cdba9 MW |
1036 | { |
1037 | int count = 0; | |
43cb76d9 | 1038 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1039 | |
1040 | if (bond->primary_slave) | |
7bd46508 | 1041 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1042 | |
1043 | return count; | |
1044 | } | |
1045 | ||
43cb76d9 GKH |
1046 | static ssize_t bonding_store_primary(struct device *d, |
1047 | struct device_attribute *attr, | |
1048 | const char *buf, size_t count) | |
b76cdba9 MW |
1049 | { |
1050 | int i; | |
1051 | struct slave *slave; | |
43cb76d9 | 1052 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1053 | |
496a60cd EB |
1054 | if (!rtnl_trylock()) |
1055 | return restart_syscall(); | |
e934dd78 JV |
1056 | read_lock(&bond->lock); |
1057 | write_lock_bh(&bond->curr_slave_lock); | |
1058 | ||
b76cdba9 | 1059 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1060 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1061 | bond->dev->name, bond->dev->name, bond->params.mode); | |
b76cdba9 MW |
1062 | } else { |
1063 | bond_for_each_slave(bond, slave, i) { | |
1064 | if (strnicmp | |
1065 | (slave->dev->name, buf, | |
1066 | strlen(slave->dev->name)) == 0) { | |
a4aee5c8 JP |
1067 | pr_info("%s: Setting %s as primary slave.\n", |
1068 | bond->dev->name, slave->dev->name); | |
b76cdba9 | 1069 | bond->primary_slave = slave; |
ce501caf | 1070 | strcpy(bond->params.primary, slave->dev->name); |
b76cdba9 MW |
1071 | bond_select_active_slave(bond); |
1072 | goto out; | |
1073 | } | |
1074 | } | |
1075 | ||
1076 | /* if we got here, then we didn't match the name of any slave */ | |
1077 | ||
1078 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
a4aee5c8 JP |
1079 | pr_info("%s: Setting primary slave to None.\n", |
1080 | bond->dev->name); | |
3418db7c | 1081 | bond->primary_slave = NULL; |
b76cdba9 MW |
1082 | bond_select_active_slave(bond); |
1083 | } else { | |
a4aee5c8 JP |
1084 | pr_info("%s: Unable to set %.*s as primary slave as it is not a slave.\n", |
1085 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
1086 | } |
1087 | } | |
1088 | out: | |
e934dd78 JV |
1089 | write_unlock_bh(&bond->curr_slave_lock); |
1090 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1091 | rtnl_unlock(); |
1092 | ||
b76cdba9 MW |
1093 | return count; |
1094 | } | |
3d632c3f SH |
1095 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1096 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1097 | |
a549952a JP |
1098 | /* |
1099 | * Show and set the primary_reselect flag. | |
1100 | */ | |
1101 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1102 | struct device_attribute *attr, | |
1103 | char *buf) | |
1104 | { | |
1105 | struct bonding *bond = to_bond(d); | |
1106 | ||
1107 | return sprintf(buf, "%s %d\n", | |
1108 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1109 | bond->params.primary_reselect); | |
1110 | } | |
1111 | ||
1112 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1113 | struct device_attribute *attr, | |
1114 | const char *buf, size_t count) | |
1115 | { | |
1116 | int new_value, ret = count; | |
1117 | struct bonding *bond = to_bond(d); | |
1118 | ||
1119 | if (!rtnl_trylock()) | |
1120 | return restart_syscall(); | |
1121 | ||
1122 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1123 | if (new_value < 0) { | |
a4aee5c8 | 1124 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1125 | bond->dev->name, |
1126 | (int) strlen(buf) - 1, buf); | |
1127 | ret = -EINVAL; | |
1128 | goto out; | |
1129 | } | |
1130 | ||
1131 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1132 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1133 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1134 | new_value); | |
1135 | ||
1136 | read_lock(&bond->lock); | |
1137 | write_lock_bh(&bond->curr_slave_lock); | |
1138 | bond_select_active_slave(bond); | |
1139 | write_unlock_bh(&bond->curr_slave_lock); | |
1140 | read_unlock(&bond->lock); | |
1141 | out: | |
1142 | rtnl_unlock(); | |
1143 | return ret; | |
1144 | } | |
1145 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1146 | bonding_show_primary_reselect, | |
1147 | bonding_store_primary_reselect); | |
1148 | ||
b76cdba9 MW |
1149 | /* |
1150 | * Show and set the use_carrier flag. | |
1151 | */ | |
43cb76d9 GKH |
1152 | static ssize_t bonding_show_carrier(struct device *d, |
1153 | struct device_attribute *attr, | |
1154 | char *buf) | |
b76cdba9 | 1155 | { |
43cb76d9 | 1156 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1157 | |
7bd46508 | 1158 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1159 | } |
1160 | ||
43cb76d9 GKH |
1161 | static ssize_t bonding_store_carrier(struct device *d, |
1162 | struct device_attribute *attr, | |
1163 | const char *buf, size_t count) | |
b76cdba9 MW |
1164 | { |
1165 | int new_value, ret = count; | |
43cb76d9 | 1166 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1167 | |
1168 | ||
1169 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1170 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1171 | bond->dev->name); |
1172 | ret = -EINVAL; | |
1173 | goto out; | |
1174 | } | |
1175 | if ((new_value == 0) || (new_value == 1)) { | |
1176 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1177 | pr_info("%s: Setting use_carrier to %d.\n", |
1178 | bond->dev->name, new_value); | |
b76cdba9 | 1179 | } else { |
a4aee5c8 JP |
1180 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1181 | bond->dev->name, new_value); | |
b76cdba9 MW |
1182 | } |
1183 | out: | |
1184 | return count; | |
1185 | } | |
3d632c3f SH |
1186 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1187 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1188 | |
1189 | ||
1190 | /* | |
1191 | * Show and set currently active_slave. | |
1192 | */ | |
43cb76d9 GKH |
1193 | static ssize_t bonding_show_active_slave(struct device *d, |
1194 | struct device_attribute *attr, | |
1195 | char *buf) | |
b76cdba9 MW |
1196 | { |
1197 | struct slave *curr; | |
43cb76d9 | 1198 | struct bonding *bond = to_bond(d); |
16cd0160 | 1199 | int count = 0; |
b76cdba9 | 1200 | |
b76cdba9 MW |
1201 | read_lock(&bond->curr_slave_lock); |
1202 | curr = bond->curr_active_slave; | |
1203 | read_unlock(&bond->curr_slave_lock); | |
1204 | ||
1205 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1206 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1207 | return count; |
1208 | } | |
1209 | ||
43cb76d9 GKH |
1210 | static ssize_t bonding_store_active_slave(struct device *d, |
1211 | struct device_attribute *attr, | |
1212 | const char *buf, size_t count) | |
b76cdba9 MW |
1213 | { |
1214 | int i; | |
1215 | struct slave *slave; | |
3d632c3f SH |
1216 | struct slave *old_active = NULL; |
1217 | struct slave *new_active = NULL; | |
43cb76d9 | 1218 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1219 | |
496a60cd EB |
1220 | if (!rtnl_trylock()) |
1221 | return restart_syscall(); | |
e934dd78 JV |
1222 | read_lock(&bond->lock); |
1223 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1224 | |
3d632c3f | 1225 | if (!USES_PRIMARY(bond->params.mode)) |
a4aee5c8 | 1226 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f SH |
1227 | bond->dev->name, bond->dev->name, bond->params.mode); |
1228 | else { | |
b76cdba9 MW |
1229 | bond_for_each_slave(bond, slave, i) { |
1230 | if (strnicmp | |
1231 | (slave->dev->name, buf, | |
1232 | strlen(slave->dev->name)) == 0) { | |
1233 | old_active = bond->curr_active_slave; | |
1234 | new_active = slave; | |
a50d8de2 | 1235 | if (new_active == old_active) { |
b76cdba9 | 1236 | /* do nothing */ |
a4aee5c8 JP |
1237 | pr_info("%s: %s is already the current active slave.\n", |
1238 | bond->dev->name, | |
1239 | slave->dev->name); | |
b76cdba9 MW |
1240 | goto out; |
1241 | } | |
1242 | else { | |
1243 | if ((new_active) && | |
1244 | (old_active) && | |
1245 | (new_active->link == BOND_LINK_UP) && | |
1246 | IS_UP(new_active->dev)) { | |
a4aee5c8 JP |
1247 | pr_info("%s: Setting %s as active slave.\n", |
1248 | bond->dev->name, | |
1249 | slave->dev->name); | |
e5e2a8fd | 1250 | bond_change_active_slave(bond, new_active); |
b76cdba9 MW |
1251 | } |
1252 | else { | |
a4aee5c8 JP |
1253 | pr_info("%s: Could not set %s as active slave; either %s is down or the link is down.\n", |
1254 | bond->dev->name, | |
1255 | slave->dev->name, | |
e5e2a8fd | 1256 | slave->dev->name); |
b76cdba9 MW |
1257 | } |
1258 | goto out; | |
1259 | } | |
1260 | } | |
1261 | } | |
1262 | ||
1263 | /* if we got here, then we didn't match the name of any slave */ | |
1264 | ||
1265 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
a4aee5c8 | 1266 | pr_info("%s: Setting active slave to None.\n", |
3d632c3f | 1267 | bond->dev->name); |
3418db7c | 1268 | bond->primary_slave = NULL; |
3d632c3f | 1269 | bond_select_active_slave(bond); |
b76cdba9 | 1270 | } else { |
a4aee5c8 | 1271 | pr_info("%s: Unable to set %.*s as active slave as it is not a slave.\n", |
3d632c3f | 1272 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
1273 | } |
1274 | } | |
3d632c3f | 1275 | out: |
e934dd78 JV |
1276 | write_unlock_bh(&bond->curr_slave_lock); |
1277 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1278 | rtnl_unlock(); |
1279 | ||
b76cdba9 MW |
1280 | return count; |
1281 | ||
1282 | } | |
3d632c3f SH |
1283 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1284 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1285 | |
1286 | ||
1287 | /* | |
1288 | * Show link status of the bond interface. | |
1289 | */ | |
43cb76d9 GKH |
1290 | static ssize_t bonding_show_mii_status(struct device *d, |
1291 | struct device_attribute *attr, | |
1292 | char *buf) | |
b76cdba9 MW |
1293 | { |
1294 | struct slave *curr; | |
43cb76d9 | 1295 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1296 | |
1297 | read_lock(&bond->curr_slave_lock); | |
1298 | curr = bond->curr_active_slave; | |
1299 | read_unlock(&bond->curr_slave_lock); | |
1300 | ||
3d632c3f | 1301 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1302 | } |
43cb76d9 | 1303 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 MW |
1304 | |
1305 | ||
1306 | /* | |
1307 | * Show current 802.3ad aggregator ID. | |
1308 | */ | |
43cb76d9 GKH |
1309 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1310 | struct device_attribute *attr, | |
1311 | char *buf) | |
b76cdba9 MW |
1312 | { |
1313 | int count = 0; | |
43cb76d9 | 1314 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1315 | |
1316 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1317 | struct ad_info ad_info; | |
3d632c3f SH |
1318 | count = sprintf(buf, "%d\n", |
1319 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1320 | ? 0 : ad_info.aggregator_id); | |
b76cdba9 | 1321 | } |
b76cdba9 MW |
1322 | |
1323 | return count; | |
1324 | } | |
43cb76d9 | 1325 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1326 | |
1327 | ||
1328 | /* | |
1329 | * Show number of active 802.3ad ports. | |
1330 | */ | |
43cb76d9 GKH |
1331 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1332 | struct device_attribute *attr, | |
1333 | char *buf) | |
b76cdba9 MW |
1334 | { |
1335 | int count = 0; | |
43cb76d9 | 1336 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1337 | |
1338 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1339 | struct ad_info ad_info; | |
3d632c3f SH |
1340 | count = sprintf(buf, "%d\n", |
1341 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1342 | ? 0 : ad_info.ports); | |
b76cdba9 | 1343 | } |
b76cdba9 MW |
1344 | |
1345 | return count; | |
1346 | } | |
43cb76d9 | 1347 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1348 | |
1349 | ||
1350 | /* | |
1351 | * Show current 802.3ad actor key. | |
1352 | */ | |
43cb76d9 GKH |
1353 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1354 | struct device_attribute *attr, | |
1355 | char *buf) | |
b76cdba9 MW |
1356 | { |
1357 | int count = 0; | |
43cb76d9 | 1358 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1359 | |
1360 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1361 | struct ad_info ad_info; | |
3d632c3f SH |
1362 | count = sprintf(buf, "%d\n", |
1363 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1364 | ? 0 : ad_info.actor_key); | |
b76cdba9 | 1365 | } |
b76cdba9 MW |
1366 | |
1367 | return count; | |
1368 | } | |
43cb76d9 | 1369 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1370 | |
1371 | ||
1372 | /* | |
1373 | * Show current 802.3ad partner key. | |
1374 | */ | |
43cb76d9 GKH |
1375 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1376 | struct device_attribute *attr, | |
1377 | char *buf) | |
b76cdba9 MW |
1378 | { |
1379 | int count = 0; | |
43cb76d9 | 1380 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1381 | |
1382 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1383 | struct ad_info ad_info; | |
3d632c3f SH |
1384 | count = sprintf(buf, "%d\n", |
1385 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1386 | ? 0 : ad_info.partner_key); | |
b76cdba9 | 1387 | } |
b76cdba9 MW |
1388 | |
1389 | return count; | |
1390 | } | |
43cb76d9 | 1391 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1392 | |
1393 | ||
1394 | /* | |
1395 | * Show current 802.3ad partner mac. | |
1396 | */ | |
43cb76d9 GKH |
1397 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1398 | struct device_attribute *attr, | |
1399 | char *buf) | |
b76cdba9 MW |
1400 | { |
1401 | int count = 0; | |
43cb76d9 | 1402 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1403 | |
1404 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1405 | struct ad_info ad_info; | |
3d632c3f | 1406 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1407 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1408 | } |
b76cdba9 MW |
1409 | |
1410 | return count; | |
1411 | } | |
43cb76d9 | 1412 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1413 | |
bb1d9123 AG |
1414 | /* |
1415 | * Show the queue_ids of the slaves in the current bond. | |
1416 | */ | |
1417 | static ssize_t bonding_show_queue_id(struct device *d, | |
1418 | struct device_attribute *attr, | |
1419 | char *buf) | |
1420 | { | |
1421 | struct slave *slave; | |
1422 | int i, res = 0; | |
1423 | struct bonding *bond = to_bond(d); | |
1424 | ||
1425 | if (!rtnl_trylock()) | |
1426 | return restart_syscall(); | |
1427 | ||
1428 | read_lock(&bond->lock); | |
1429 | bond_for_each_slave(bond, slave, i) { | |
1430 | if (res > (PAGE_SIZE - 6)) { | |
1431 | /* not enough space for another interface name */ | |
1432 | if ((PAGE_SIZE - res) > 10) | |
1433 | res = PAGE_SIZE - 10; | |
1434 | res += sprintf(buf + res, "++more++ "); | |
1435 | break; | |
1436 | } | |
1437 | res += sprintf(buf + res, "%s:%d ", | |
1438 | slave->dev->name, slave->queue_id); | |
1439 | } | |
1440 | read_unlock(&bond->lock); | |
1441 | if (res) | |
1442 | buf[res-1] = '\n'; /* eat the leftover space */ | |
1443 | rtnl_unlock(); | |
1444 | return res; | |
1445 | } | |
1446 | ||
1447 | /* | |
1448 | * Set the queue_ids of the slaves in the current bond. The bond | |
1449 | * interface must be enslaved for this to work. | |
1450 | */ | |
1451 | static ssize_t bonding_store_queue_id(struct device *d, | |
1452 | struct device_attribute *attr, | |
1453 | const char *buffer, size_t count) | |
1454 | { | |
1455 | struct slave *slave, *update_slave; | |
1456 | struct bonding *bond = to_bond(d); | |
1457 | u16 qid; | |
1458 | int i, ret = count; | |
1459 | char *delim; | |
1460 | struct net_device *sdev = NULL; | |
1461 | ||
1462 | if (!rtnl_trylock()) | |
1463 | return restart_syscall(); | |
1464 | ||
1465 | /* delim will point to queue id if successful */ | |
1466 | delim = strchr(buffer, ':'); | |
1467 | if (!delim) | |
1468 | goto err_no_cmd; | |
1469 | ||
1470 | /* | |
1471 | * Terminate string that points to device name and bump it | |
1472 | * up one, so we can read the queue id there. | |
1473 | */ | |
1474 | *delim = '\0'; | |
1475 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1476 | goto err_no_cmd; | |
1477 | ||
1478 | /* Check buffer length, valid ifname and queue id */ | |
1479 | if (strlen(buffer) > IFNAMSIZ || | |
1480 | !dev_valid_name(buffer) || | |
1481 | qid > bond->params.tx_queues) | |
1482 | goto err_no_cmd; | |
1483 | ||
1484 | /* Get the pointer to that interface if it exists */ | |
1485 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1486 | if (!sdev) | |
1487 | goto err_no_cmd; | |
1488 | ||
1489 | read_lock(&bond->lock); | |
1490 | ||
1491 | /* Search for thes slave and check for duplicate qids */ | |
1492 | update_slave = NULL; | |
1493 | bond_for_each_slave(bond, slave, i) { | |
1494 | if (sdev == slave->dev) | |
1495 | /* | |
1496 | * We don't need to check the matching | |
1497 | * slave for dups, since we're overwriting it | |
1498 | */ | |
1499 | update_slave = slave; | |
1500 | else if (qid && qid == slave->queue_id) { | |
1501 | goto err_no_cmd_unlock; | |
1502 | } | |
1503 | } | |
1504 | ||
1505 | if (!update_slave) | |
1506 | goto err_no_cmd_unlock; | |
1507 | ||
1508 | /* Actually set the qids for the slave */ | |
1509 | update_slave->queue_id = qid; | |
1510 | ||
1511 | read_unlock(&bond->lock); | |
1512 | out: | |
1513 | rtnl_unlock(); | |
1514 | return ret; | |
1515 | ||
1516 | err_no_cmd_unlock: | |
1517 | read_unlock(&bond->lock); | |
1518 | err_no_cmd: | |
1519 | pr_info("invalid input for queue_id set for %s.\n", | |
1520 | bond->dev->name); | |
1521 | ret = -EPERM; | |
1522 | goto out; | |
1523 | } | |
1524 | ||
1525 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1526 | bonding_store_queue_id); | |
1527 | ||
1528 | ||
ebd8e497 AG |
1529 | /* |
1530 | * Show and set the all_slaves_active flag. | |
1531 | */ | |
1532 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1533 | struct device_attribute *attr, | |
1534 | char *buf) | |
1535 | { | |
1536 | struct bonding *bond = to_bond(d); | |
1537 | ||
1538 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1539 | } | |
1540 | ||
1541 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1542 | struct device_attribute *attr, | |
1543 | const char *buf, size_t count) | |
1544 | { | |
1545 | int i, new_value, ret = count; | |
1546 | struct bonding *bond = to_bond(d); | |
1547 | struct slave *slave; | |
1548 | ||
1549 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1550 | pr_err("%s: no all_slaves_active value specified.\n", | |
1551 | bond->dev->name); | |
1552 | ret = -EINVAL; | |
1553 | goto out; | |
1554 | } | |
1555 | ||
1556 | if (new_value == bond->params.all_slaves_active) | |
1557 | goto out; | |
1558 | ||
1559 | if ((new_value == 0) || (new_value == 1)) { | |
1560 | bond->params.all_slaves_active = new_value; | |
1561 | } else { | |
1562 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1563 | bond->dev->name, new_value); | |
1564 | ret = -EINVAL; | |
1565 | goto out; | |
1566 | } | |
b76cdba9 | 1567 | |
ebd8e497 AG |
1568 | bond_for_each_slave(bond, slave, i) { |
1569 | if (slave->state == BOND_STATE_BACKUP) { | |
1570 | if (new_value) | |
1571 | slave->dev->priv_flags &= ~IFF_SLAVE_INACTIVE; | |
1572 | else | |
1573 | slave->dev->priv_flags |= IFF_SLAVE_INACTIVE; | |
1574 | } | |
1575 | } | |
1576 | out: | |
1577 | return count; | |
1578 | } | |
1579 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1580 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 MW |
1581 | |
1582 | static struct attribute *per_bond_attrs[] = { | |
43cb76d9 GKH |
1583 | &dev_attr_slaves.attr, |
1584 | &dev_attr_mode.attr, | |
dd957c57 | 1585 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1586 | &dev_attr_arp_validate.attr, |
1587 | &dev_attr_arp_interval.attr, | |
1588 | &dev_attr_arp_ip_target.attr, | |
1589 | &dev_attr_downdelay.attr, | |
1590 | &dev_attr_updelay.attr, | |
1591 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1592 | &dev_attr_ad_select.attr, |
43cb76d9 | 1593 | &dev_attr_xmit_hash_policy.attr, |
7893b249 | 1594 | &dev_attr_num_grat_arp.attr, |
305d552a | 1595 | &dev_attr_num_unsol_na.attr, |
43cb76d9 GKH |
1596 | &dev_attr_miimon.attr, |
1597 | &dev_attr_primary.attr, | |
a549952a | 1598 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1599 | &dev_attr_use_carrier.attr, |
1600 | &dev_attr_active_slave.attr, | |
1601 | &dev_attr_mii_status.attr, | |
1602 | &dev_attr_ad_aggregator.attr, | |
1603 | &dev_attr_ad_num_ports.attr, | |
1604 | &dev_attr_ad_actor_key.attr, | |
1605 | &dev_attr_ad_partner_key.attr, | |
1606 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1607 | &dev_attr_queue_id.attr, |
ebd8e497 | 1608 | &dev_attr_all_slaves_active.attr, |
b76cdba9 MW |
1609 | NULL, |
1610 | }; | |
1611 | ||
1612 | static struct attribute_group bonding_group = { | |
1613 | .name = "bonding", | |
1614 | .attrs = per_bond_attrs, | |
1615 | }; | |
1616 | ||
1617 | /* | |
1618 | * Initialize sysfs. This sets up the bonding_masters file in | |
1619 | * /sys/class/net. | |
1620 | */ | |
1621 | int bond_create_sysfs(void) | |
1622 | { | |
b8a9787e | 1623 | int ret; |
b76cdba9 | 1624 | |
b8a9787e | 1625 | ret = netdev_class_create_file(&class_attr_bonding_masters); |
877cbd36 JV |
1626 | /* |
1627 | * Permit multiple loads of the module by ignoring failures to | |
1628 | * create the bonding_masters sysfs file. Bonding devices | |
1629 | * created by second or subsequent loads of the module will | |
1630 | * not be listed in, or controllable by, bonding_masters, but | |
1631 | * will have the usual "bonding" sysfs directory. | |
1632 | * | |
1633 | * This is done to preserve backwards compatibility for | |
1634 | * initscripts/sysconfig, which load bonding multiple times to | |
1635 | * configure multiple bonding devices. | |
1636 | */ | |
1637 | if (ret == -EEXIST) { | |
38d2f38b SH |
1638 | /* Is someone being kinky and naming a device bonding_master? */ |
1639 | if (__dev_get_by_name(&init_net, | |
1640 | class_attr_bonding_masters.attr.name)) | |
a4aee5c8 | 1641 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1642 | class_attr_bonding_masters.attr.name); |
130aa61a | 1643 | ret = 0; |
877cbd36 | 1644 | } |
b76cdba9 MW |
1645 | |
1646 | return ret; | |
1647 | ||
1648 | } | |
1649 | ||
1650 | /* | |
1651 | * Remove /sys/class/net/bonding_masters. | |
1652 | */ | |
1653 | void bond_destroy_sysfs(void) | |
1654 | { | |
b8a9787e | 1655 | netdev_class_remove_file(&class_attr_bonding_masters); |
b76cdba9 MW |
1656 | } |
1657 | ||
1658 | /* | |
1659 | * Initialize sysfs for each bond. This sets up and registers | |
1660 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1661 | */ | |
6151b3d4 | 1662 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1663 | { |
6151b3d4 | 1664 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1665 | } |
1666 |