Commit | Line | Data |
---|---|---|
b76cdba9 MW |
1 | /* |
2 | * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
11 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
b76cdba9 | 21 | */ |
a4aee5c8 JP |
22 | |
23 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
24 | ||
b76cdba9 MW |
25 | #include <linux/kernel.h> |
26 | #include <linux/module.h> | |
b76cdba9 | 27 | #include <linux/device.h> |
d43c36dc | 28 | #include <linux/sched.h> |
b76cdba9 MW |
29 | #include <linux/fs.h> |
30 | #include <linux/types.h> | |
31 | #include <linux/string.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/inetdevice.h> | |
34 | #include <linux/in.h> | |
35 | #include <linux/sysfs.h> | |
b76cdba9 MW |
36 | #include <linux/ctype.h> |
37 | #include <linux/inet.h> | |
38 | #include <linux/rtnetlink.h> | |
5c5129b5 | 39 | #include <linux/etherdevice.h> |
881d966b | 40 | #include <net/net_namespace.h> |
ec87fd3b EB |
41 | #include <net/netns/generic.h> |
42 | #include <linux/nsproxy.h> | |
b76cdba9 | 43 | |
b76cdba9 | 44 | #include "bonding.h" |
5a03cdb7 | 45 | |
3d632c3f | 46 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 47 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 48 | |
b76cdba9 MW |
49 | /* |
50 | * "show" function for the bond_masters attribute. | |
51 | * The class parameter is ignored. | |
52 | */ | |
28812fe1 AK |
53 | static ssize_t bonding_show_bonds(struct class *cls, |
54 | struct class_attribute *attr, | |
55 | char *buf) | |
b76cdba9 | 56 | { |
4c22400a EB |
57 | struct bond_net *bn = |
58 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
59 | int res = 0; |
60 | struct bonding *bond; | |
61 | ||
7e083840 | 62 | rtnl_lock(); |
b76cdba9 | 63 | |
ec87fd3b | 64 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
65 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
66 | /* not enough space for another interface name */ | |
67 | if ((PAGE_SIZE - res) > 10) | |
68 | res = PAGE_SIZE - 10; | |
b8843665 | 69 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
70 | break; |
71 | } | |
b8843665 | 72 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 73 | } |
1dcdcd69 WF |
74 | if (res) |
75 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
76 | |
77 | rtnl_unlock(); | |
b76cdba9 MW |
78 | return res; |
79 | } | |
80 | ||
4c22400a | 81 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
82 | { |
83 | struct bonding *bond; | |
84 | ||
ec87fd3b | 85 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
86 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
87 | return bond->dev; | |
88 | } | |
89 | return NULL; | |
90 | } | |
91 | ||
b76cdba9 MW |
92 | /* |
93 | * "store" function for the bond_masters attribute. This is what | |
94 | * creates and deletes entire bonds. | |
95 | * | |
96 | * The class parameter is ignored. | |
97 | * | |
98 | */ | |
99 | ||
3d632c3f | 100 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 101 | struct class_attribute *attr, |
3d632c3f | 102 | const char *buffer, size_t count) |
b76cdba9 | 103 | { |
4c22400a EB |
104 | struct bond_net *bn = |
105 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
106 | char command[IFNAMSIZ + 1] = {0, }; |
107 | char *ifname; | |
027ea041 | 108 | int rv, res = count; |
b76cdba9 | 109 | |
b76cdba9 MW |
110 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
111 | ifname = command + 1; | |
112 | if ((strlen(command) <= 1) || | |
113 | !dev_valid_name(ifname)) | |
114 | goto err_no_cmd; | |
115 | ||
116 | if (command[0] == '+') { | |
a4aee5c8 | 117 | pr_info("%s is being created...\n", ifname); |
4c22400a | 118 | rv = bond_create(bn->net, ifname); |
027ea041 | 119 | if (rv) { |
5f86cad1 PO |
120 | if (rv == -EEXIST) |
121 | pr_info("%s already exists.\n", ifname); | |
122 | else | |
123 | pr_info("%s creation failed.\n", ifname); | |
027ea041 | 124 | res = rv; |
b76cdba9 | 125 | } |
373500db SH |
126 | } else if (command[0] == '-') { |
127 | struct net_device *bond_dev; | |
b76cdba9 | 128 | |
027ea041 | 129 | rtnl_lock(); |
4c22400a | 130 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 131 | if (bond_dev) { |
a4aee5c8 | 132 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
133 | unregister_netdevice(bond_dev); |
134 | } else { | |
a4aee5c8 | 135 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
136 | res = -ENODEV; |
137 | } | |
138 | rtnl_unlock(); | |
139 | } else | |
140 | goto err_no_cmd; | |
027ea041 | 141 | |
373500db SH |
142 | /* Always return either count or an error. If you return 0, you'll |
143 | * get called forever, which is bad. | |
144 | */ | |
145 | return res; | |
b76cdba9 MW |
146 | |
147 | err_no_cmd: | |
a4aee5c8 | 148 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 149 | return -EPERM; |
b76cdba9 | 150 | } |
373500db | 151 | |
4c22400a EB |
152 | static const void *bonding_namespace(struct class *cls, |
153 | const struct class_attribute *attr) | |
154 | { | |
155 | const struct bond_net *bn = | |
156 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
157 | return bn->net; | |
158 | } | |
159 | ||
b76cdba9 | 160 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
161 | static const struct class_attribute class_attr_bonding_masters = { |
162 | .attr = { | |
163 | .name = "bonding_masters", | |
164 | .mode = S_IWUSR | S_IRUGO, | |
165 | }, | |
166 | .show = bonding_show_bonds, | |
167 | .store = bonding_store_bonds, | |
168 | .namespace = bonding_namespace, | |
169 | }; | |
b76cdba9 | 170 | |
3d632c3f SH |
171 | int bond_create_slave_symlinks(struct net_device *master, |
172 | struct net_device *slave) | |
b76cdba9 MW |
173 | { |
174 | char linkname[IFNAMSIZ+7]; | |
175 | int ret = 0; | |
176 | ||
177 | /* first, create a link from the slave back to the master */ | |
43cb76d9 | 178 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
b76cdba9 MW |
179 | "master"); |
180 | if (ret) | |
181 | return ret; | |
182 | /* next, create a link from the master to the slave */ | |
3d632c3f | 183 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 184 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
b76cdba9 MW |
185 | linkname); |
186 | return ret; | |
187 | ||
188 | } | |
189 | ||
3d632c3f SH |
190 | void bond_destroy_slave_symlinks(struct net_device *master, |
191 | struct net_device *slave) | |
b76cdba9 MW |
192 | { |
193 | char linkname[IFNAMSIZ+7]; | |
194 | ||
43cb76d9 | 195 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
3d632c3f | 196 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 197 | sysfs_remove_link(&(master->dev.kobj), linkname); |
b76cdba9 MW |
198 | } |
199 | ||
200 | ||
201 | /* | |
202 | * Show the slaves in the current bond. | |
203 | */ | |
43cb76d9 GKH |
204 | static ssize_t bonding_show_slaves(struct device *d, |
205 | struct device_attribute *attr, char *buf) | |
b76cdba9 MW |
206 | { |
207 | struct slave *slave; | |
208 | int i, res = 0; | |
43cb76d9 | 209 | struct bonding *bond = to_bond(d); |
b76cdba9 | 210 | |
6603a6f2 | 211 | read_lock(&bond->lock); |
b76cdba9 MW |
212 | bond_for_each_slave(bond, slave, i) { |
213 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
214 | /* not enough space for another interface name */ | |
215 | if ((PAGE_SIZE - res) > 10) | |
216 | res = PAGE_SIZE - 10; | |
7bd46508 | 217 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
218 | break; |
219 | } | |
220 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
221 | } | |
6603a6f2 | 222 | read_unlock(&bond->lock); |
1dcdcd69 WF |
223 | if (res) |
224 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
225 | return res; |
226 | } | |
227 | ||
228 | /* | |
229 | * Set the slaves in the current bond. The bond interface must be | |
230 | * up for this to succeed. | |
f9f3545e JP |
231 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
232 | * All hard work should be done there. | |
b76cdba9 | 233 | */ |
43cb76d9 GKH |
234 | static ssize_t bonding_store_slaves(struct device *d, |
235 | struct device_attribute *attr, | |
236 | const char *buffer, size_t count) | |
b76cdba9 MW |
237 | { |
238 | char command[IFNAMSIZ + 1] = { 0, }; | |
239 | char *ifname; | |
f9f3545e JP |
240 | int res, ret = count; |
241 | struct net_device *dev; | |
43cb76d9 | 242 | struct bonding *bond = to_bond(d); |
b76cdba9 | 243 | |
496a60cd EB |
244 | if (!rtnl_trylock()) |
245 | return restart_syscall(); | |
027ea041 | 246 | |
b76cdba9 MW |
247 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
248 | ifname = command + 1; | |
249 | if ((strlen(command) <= 1) || | |
250 | !dev_valid_name(ifname)) | |
251 | goto err_no_cmd; | |
252 | ||
f9f3545e JP |
253 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
254 | if (!dev) { | |
255 | pr_info("%s: Interface %s does not exist!\n", | |
256 | bond->dev->name, ifname); | |
257 | ret = -ENODEV; | |
258 | goto out; | |
259 | } | |
b76cdba9 | 260 | |
f9f3545e JP |
261 | switch (command[0]) { |
262 | case '+': | |
263 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 264 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 265 | break; |
3d632c3f | 266 | |
f9f3545e JP |
267 | case '-': |
268 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
269 | res = bond_release(bond->dev, dev); | |
270 | break; | |
b76cdba9 | 271 | |
f9f3545e JP |
272 | default: |
273 | goto err_no_cmd; | |
b76cdba9 MW |
274 | } |
275 | ||
f9f3545e JP |
276 | if (res) |
277 | ret = res; | |
278 | goto out; | |
279 | ||
b76cdba9 | 280 | err_no_cmd: |
a4aee5c8 JP |
281 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
282 | bond->dev->name); | |
b76cdba9 MW |
283 | ret = -EPERM; |
284 | ||
285 | out: | |
027ea041 | 286 | rtnl_unlock(); |
b76cdba9 MW |
287 | return ret; |
288 | } | |
289 | ||
3d632c3f SH |
290 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
291 | bonding_store_slaves); | |
b76cdba9 MW |
292 | |
293 | /* | |
294 | * Show and set the bonding mode. The bond interface must be down to | |
295 | * change the mode. | |
296 | */ | |
43cb76d9 GKH |
297 | static ssize_t bonding_show_mode(struct device *d, |
298 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 299 | { |
43cb76d9 | 300 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
301 | |
302 | return sprintf(buf, "%s %d\n", | |
303 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 304 | bond->params.mode); |
b76cdba9 MW |
305 | } |
306 | ||
43cb76d9 GKH |
307 | static ssize_t bonding_store_mode(struct device *d, |
308 | struct device_attribute *attr, | |
309 | const char *buf, size_t count) | |
b76cdba9 MW |
310 | { |
311 | int new_value, ret = count; | |
43cb76d9 | 312 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
313 | |
314 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
315 | pr_err("unable to update mode of %s because interface is up.\n", |
316 | bond->dev->name); | |
b76cdba9 MW |
317 | ret = -EPERM; |
318 | goto out; | |
319 | } | |
320 | ||
4a8bb7e2 VF |
321 | if (bond->slave_cnt > 0) { |
322 | pr_err("unable to update mode of %s because it has slaves.\n", | |
323 | bond->dev->name); | |
324 | ret = -EPERM; | |
325 | goto out; | |
326 | } | |
327 | ||
ece95f7f | 328 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 329 | if (new_value < 0) { |
a4aee5c8 JP |
330 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
331 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
332 | ret = -EINVAL; |
333 | goto out; | |
c5cb002f AG |
334 | } |
335 | if ((new_value == BOND_MODE_ALB || | |
336 | new_value == BOND_MODE_TLB) && | |
337 | bond->params.arp_interval) { | |
338 | pr_err("%s: %s mode is incompatible with arp monitoring.\n", | |
339 | bond->dev->name, bond_mode_tbl[new_value].modename); | |
340 | ret = -EINVAL; | |
341 | goto out; | |
342 | } | |
8f903c70 | 343 | |
c5cb002f AG |
344 | bond->params.mode = new_value; |
345 | bond_set_mode_ops(bond, bond->params.mode); | |
346 | pr_info("%s: setting mode to %s (%d).\n", | |
347 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
348 | new_value); | |
b76cdba9 MW |
349 | out: |
350 | return ret; | |
351 | } | |
3d632c3f SH |
352 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
353 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
354 | |
355 | /* | |
3d632c3f SH |
356 | * Show and set the bonding transmit hash method. |
357 | * The bond interface must be down to change the xmit hash policy. | |
b76cdba9 | 358 | */ |
43cb76d9 GKH |
359 | static ssize_t bonding_show_xmit_hash(struct device *d, |
360 | struct device_attribute *attr, | |
361 | char *buf) | |
b76cdba9 | 362 | { |
43cb76d9 | 363 | struct bonding *bond = to_bond(d); |
b76cdba9 | 364 | |
8e4b9329 WF |
365 | return sprintf(buf, "%s %d\n", |
366 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
367 | bond->params.xmit_policy); | |
b76cdba9 MW |
368 | } |
369 | ||
43cb76d9 GKH |
370 | static ssize_t bonding_store_xmit_hash(struct device *d, |
371 | struct device_attribute *attr, | |
372 | const char *buf, size_t count) | |
b76cdba9 MW |
373 | { |
374 | int new_value, ret = count; | |
43cb76d9 | 375 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
376 | |
377 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 378 | pr_err("%s: Interface is up. Unable to update xmit policy.\n", |
b76cdba9 MW |
379 | bond->dev->name); |
380 | ret = -EPERM; | |
381 | goto out; | |
382 | } | |
383 | ||
ece95f7f | 384 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 385 | if (new_value < 0) { |
a4aee5c8 | 386 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
387 | bond->dev->name, |
388 | (int)strlen(buf) - 1, buf); | |
389 | ret = -EINVAL; | |
390 | goto out; | |
391 | } else { | |
392 | bond->params.xmit_policy = new_value; | |
393 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 | 394 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
395 | bond->dev->name, |
396 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 MW |
397 | } |
398 | out: | |
399 | return ret; | |
400 | } | |
3d632c3f SH |
401 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
402 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 403 | |
f5b2b966 JV |
404 | /* |
405 | * Show and set arp_validate. | |
406 | */ | |
43cb76d9 GKH |
407 | static ssize_t bonding_show_arp_validate(struct device *d, |
408 | struct device_attribute *attr, | |
409 | char *buf) | |
f5b2b966 | 410 | { |
43cb76d9 | 411 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
412 | |
413 | return sprintf(buf, "%s %d\n", | |
414 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 415 | bond->params.arp_validate); |
f5b2b966 JV |
416 | } |
417 | ||
43cb76d9 GKH |
418 | static ssize_t bonding_store_arp_validate(struct device *d, |
419 | struct device_attribute *attr, | |
420 | const char *buf, size_t count) | |
f5b2b966 JV |
421 | { |
422 | int new_value; | |
43cb76d9 | 423 | struct bonding *bond = to_bond(d); |
f5b2b966 | 424 | |
ece95f7f | 425 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 426 | if (new_value < 0) { |
a4aee5c8 | 427 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 JV |
428 | bond->dev->name, buf); |
429 | return -EINVAL; | |
430 | } | |
431 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
a4aee5c8 | 432 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 JV |
433 | bond->dev->name); |
434 | return -EINVAL; | |
435 | } | |
a4aee5c8 JP |
436 | pr_info("%s: setting arp_validate to %s (%d).\n", |
437 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
438 | new_value); | |
f5b2b966 | 439 | |
f5b2b966 JV |
440 | bond->params.arp_validate = new_value; |
441 | ||
442 | return count; | |
443 | } | |
444 | ||
3d632c3f SH |
445 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
446 | bonding_store_arp_validate); | |
f5b2b966 | 447 | |
dd957c57 JV |
448 | /* |
449 | * Show and store fail_over_mac. User only allowed to change the | |
450 | * value when there are no slaves. | |
451 | */ | |
3d632c3f SH |
452 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
453 | struct device_attribute *attr, | |
454 | char *buf) | |
dd957c57 JV |
455 | { |
456 | struct bonding *bond = to_bond(d); | |
457 | ||
3915c1e8 JV |
458 | return sprintf(buf, "%s %d\n", |
459 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
460 | bond->params.fail_over_mac); | |
dd957c57 JV |
461 | } |
462 | ||
3d632c3f SH |
463 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
464 | struct device_attribute *attr, | |
465 | const char *buf, size_t count) | |
dd957c57 JV |
466 | { |
467 | int new_value; | |
dd957c57 JV |
468 | struct bonding *bond = to_bond(d); |
469 | ||
470 | if (bond->slave_cnt != 0) { | |
a4aee5c8 | 471 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 472 | bond->dev->name); |
3915c1e8 | 473 | return -EPERM; |
dd957c57 JV |
474 | } |
475 | ||
3915c1e8 JV |
476 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
477 | if (new_value < 0) { | |
a4aee5c8 | 478 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 JV |
479 | bond->dev->name, buf); |
480 | return -EINVAL; | |
dd957c57 JV |
481 | } |
482 | ||
3915c1e8 | 483 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
484 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
485 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
486 | new_value); | |
3915c1e8 JV |
487 | |
488 | return count; | |
dd957c57 JV |
489 | } |
490 | ||
3d632c3f SH |
491 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
492 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 493 | |
b76cdba9 MW |
494 | /* |
495 | * Show and set the arp timer interval. There are two tricky bits | |
496 | * here. First, if ARP monitoring is activated, then we must disable | |
497 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
498 | * start it. | |
499 | */ | |
43cb76d9 GKH |
500 | static ssize_t bonding_show_arp_interval(struct device *d, |
501 | struct device_attribute *attr, | |
502 | char *buf) | |
b76cdba9 | 503 | { |
43cb76d9 | 504 | struct bonding *bond = to_bond(d); |
b76cdba9 | 505 | |
7bd46508 | 506 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
507 | } |
508 | ||
43cb76d9 GKH |
509 | static ssize_t bonding_store_arp_interval(struct device *d, |
510 | struct device_attribute *attr, | |
511 | const char *buf, size_t count) | |
b76cdba9 MW |
512 | { |
513 | int new_value, ret = count; | |
43cb76d9 | 514 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
515 | |
516 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 517 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
518 | bond->dev->name); |
519 | ret = -EINVAL; | |
520 | goto out; | |
521 | } | |
522 | if (new_value < 0) { | |
a4aee5c8 | 523 | pr_err("%s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", |
b76cdba9 MW |
524 | bond->dev->name, new_value, INT_MAX); |
525 | ret = -EINVAL; | |
526 | goto out; | |
527 | } | |
c5cb002f AG |
528 | if (bond->params.mode == BOND_MODE_ALB || |
529 | bond->params.mode == BOND_MODE_TLB) { | |
530 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", | |
531 | bond->dev->name, bond->dev->name); | |
532 | ret = -EINVAL; | |
533 | goto out; | |
534 | } | |
a4aee5c8 JP |
535 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
536 | bond->dev->name, new_value); | |
b76cdba9 MW |
537 | bond->params.arp_interval = new_value; |
538 | if (bond->params.miimon) { | |
a4aee5c8 JP |
539 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", |
540 | bond->dev->name, bond->dev->name); | |
b76cdba9 | 541 | bond->params.miimon = 0; |
1b76b316 JV |
542 | if (delayed_work_pending(&bond->mii_work)) { |
543 | cancel_delayed_work(&bond->mii_work); | |
544 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
545 | } |
546 | } | |
547 | if (!bond->params.arp_targets[0]) { | |
a4aee5c8 JP |
548 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", |
549 | bond->dev->name); | |
b76cdba9 MW |
550 | } |
551 | if (bond->dev->flags & IFF_UP) { | |
552 | /* If the interface is up, we may need to fire off | |
553 | * the ARP timer. If the interface is down, the | |
554 | * timer will get fired off when the open function | |
555 | * is called. | |
556 | */ | |
1b76b316 JV |
557 | if (!delayed_work_pending(&bond->arp_work)) { |
558 | if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) | |
559 | INIT_DELAYED_WORK(&bond->arp_work, | |
560 | bond_activebackup_arp_mon); | |
561 | else | |
562 | INIT_DELAYED_WORK(&bond->arp_work, | |
563 | bond_loadbalance_arp_mon); | |
564 | ||
565 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
b76cdba9 MW |
566 | } |
567 | } | |
568 | ||
569 | out: | |
570 | return ret; | |
571 | } | |
3d632c3f SH |
572 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
573 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
574 | |
575 | /* | |
576 | * Show and set the arp targets. | |
577 | */ | |
43cb76d9 GKH |
578 | static ssize_t bonding_show_arp_targets(struct device *d, |
579 | struct device_attribute *attr, | |
580 | char *buf) | |
b76cdba9 MW |
581 | { |
582 | int i, res = 0; | |
43cb76d9 | 583 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
584 | |
585 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
586 | if (bond->params.arp_targets[i]) | |
63779436 HH |
587 | res += sprintf(buf + res, "%pI4 ", |
588 | &bond->params.arp_targets[i]); | |
b76cdba9 | 589 | } |
1dcdcd69 WF |
590 | if (res) |
591 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
592 | return res; |
593 | } | |
594 | ||
43cb76d9 GKH |
595 | static ssize_t bonding_store_arp_targets(struct device *d, |
596 | struct device_attribute *attr, | |
597 | const char *buf, size_t count) | |
b76cdba9 | 598 | { |
d3bb52b0 | 599 | __be32 newtarget; |
b76cdba9 | 600 | int i = 0, done = 0, ret = count; |
43cb76d9 | 601 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 602 | __be32 *targets; |
b76cdba9 MW |
603 | |
604 | targets = bond->params.arp_targets; | |
605 | newtarget = in_aton(buf + 1); | |
606 | /* look for adds */ | |
607 | if (buf[0] == '+') { | |
d3bb52b0 | 608 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 609 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 610 | bond->dev->name, &newtarget); |
b76cdba9 MW |
611 | ret = -EINVAL; |
612 | goto out; | |
613 | } | |
614 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 615 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 616 | if (targets[i] == newtarget) { /* duplicate */ |
a4aee5c8 | 617 | pr_err("%s: ARP target %pI4 is already present\n", |
63779436 | 618 | bond->dev->name, &newtarget); |
b76cdba9 MW |
619 | ret = -EINVAL; |
620 | goto out; | |
621 | } | |
5a31bec0 | 622 | if (targets[i] == 0) { |
a4aee5c8 JP |
623 | pr_info("%s: adding ARP target %pI4.\n", |
624 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
625 | done = 1; |
626 | targets[i] = newtarget; | |
627 | } | |
628 | } | |
629 | if (!done) { | |
a4aee5c8 | 630 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 MW |
631 | bond->dev->name); |
632 | ret = -EINVAL; | |
633 | goto out; | |
634 | } | |
635 | ||
3d632c3f | 636 | } else if (buf[0] == '-') { |
d3bb52b0 | 637 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 638 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 639 | bond->dev->name, &newtarget); |
b76cdba9 MW |
640 | ret = -EINVAL; |
641 | goto out; | |
642 | } | |
643 | ||
5a31bec0 | 644 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 645 | if (targets[i] == newtarget) { |
5a31bec0 | 646 | int j; |
a4aee5c8 JP |
647 | pr_info("%s: removing ARP target %pI4.\n", |
648 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
649 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
650 | targets[j] = targets[j+1]; | |
651 | ||
652 | targets[j] = 0; | |
b76cdba9 MW |
653 | done = 1; |
654 | } | |
655 | } | |
656 | if (!done) { | |
a4aee5c8 JP |
657 | pr_info("%s: unable to remove nonexistent ARP target %pI4.\n", |
658 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
659 | ret = -EINVAL; |
660 | goto out; | |
661 | } | |
3d632c3f | 662 | } else { |
a4aee5c8 JP |
663 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
664 | bond->dev->name); | |
b76cdba9 MW |
665 | ret = -EPERM; |
666 | goto out; | |
667 | } | |
668 | ||
669 | out: | |
670 | return ret; | |
671 | } | |
43cb76d9 | 672 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
673 | |
674 | /* | |
675 | * Show and set the up and down delays. These must be multiples of the | |
676 | * MII monitoring value, and are stored internally as the multiplier. | |
677 | * Thus, we must translate to MS for the real world. | |
678 | */ | |
43cb76d9 GKH |
679 | static ssize_t bonding_show_downdelay(struct device *d, |
680 | struct device_attribute *attr, | |
681 | char *buf) | |
b76cdba9 | 682 | { |
43cb76d9 | 683 | struct bonding *bond = to_bond(d); |
b76cdba9 | 684 | |
7bd46508 | 685 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
686 | } |
687 | ||
43cb76d9 GKH |
688 | static ssize_t bonding_store_downdelay(struct device *d, |
689 | struct device_attribute *attr, | |
690 | const char *buf, size_t count) | |
b76cdba9 MW |
691 | { |
692 | int new_value, ret = count; | |
43cb76d9 | 693 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
694 | |
695 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 696 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
697 | bond->dev->name); |
698 | ret = -EPERM; | |
699 | goto out; | |
700 | } | |
701 | ||
702 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 703 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
704 | ret = -EINVAL; |
705 | goto out; | |
706 | } | |
707 | if (new_value < 0) { | |
a4aee5c8 | 708 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
709 | bond->dev->name, new_value, 1, INT_MAX); |
710 | ret = -EINVAL; | |
711 | goto out; | |
712 | } else { | |
713 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 714 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
715 | bond->dev->name, new_value, |
716 | bond->params.miimon, | |
717 | (new_value / bond->params.miimon) * | |
718 | bond->params.miimon); | |
b76cdba9 MW |
719 | } |
720 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
721 | pr_info("%s: Setting down delay to %d.\n", |
722 | bond->dev->name, | |
723 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
724 | |
725 | } | |
726 | ||
727 | out: | |
728 | return ret; | |
729 | } | |
3d632c3f SH |
730 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
731 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 732 | |
43cb76d9 GKH |
733 | static ssize_t bonding_show_updelay(struct device *d, |
734 | struct device_attribute *attr, | |
735 | char *buf) | |
b76cdba9 | 736 | { |
43cb76d9 | 737 | struct bonding *bond = to_bond(d); |
b76cdba9 | 738 | |
7bd46508 | 739 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
740 | |
741 | } | |
742 | ||
43cb76d9 GKH |
743 | static ssize_t bonding_store_updelay(struct device *d, |
744 | struct device_attribute *attr, | |
745 | const char *buf, size_t count) | |
b76cdba9 MW |
746 | { |
747 | int new_value, ret = count; | |
43cb76d9 | 748 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
749 | |
750 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 751 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
752 | bond->dev->name); |
753 | ret = -EPERM; | |
754 | goto out; | |
755 | } | |
756 | ||
757 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 758 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
759 | bond->dev->name); |
760 | ret = -EINVAL; | |
761 | goto out; | |
762 | } | |
763 | if (new_value < 0) { | |
a4aee5c8 | 764 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
765 | bond->dev->name, new_value, 1, INT_MAX); |
766 | ret = -EINVAL; | |
767 | goto out; | |
768 | } else { | |
769 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 770 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
771 | bond->dev->name, new_value, |
772 | bond->params.miimon, | |
773 | (new_value / bond->params.miimon) * | |
774 | bond->params.miimon); | |
b76cdba9 MW |
775 | } |
776 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
777 | pr_info("%s: Setting up delay to %d.\n", |
778 | bond->dev->name, | |
779 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
780 | } |
781 | ||
782 | out: | |
783 | return ret; | |
784 | } | |
3d632c3f SH |
785 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
786 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
787 | |
788 | /* | |
789 | * Show and set the LACP interval. Interface must be down, and the mode | |
790 | * must be set to 802.3ad mode. | |
791 | */ | |
43cb76d9 GKH |
792 | static ssize_t bonding_show_lacp(struct device *d, |
793 | struct device_attribute *attr, | |
794 | char *buf) | |
b76cdba9 | 795 | { |
43cb76d9 | 796 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
797 | |
798 | return sprintf(buf, "%s %d\n", | |
799 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 800 | bond->params.lacp_fast); |
b76cdba9 MW |
801 | } |
802 | ||
43cb76d9 GKH |
803 | static ssize_t bonding_store_lacp(struct device *d, |
804 | struct device_attribute *attr, | |
805 | const char *buf, size_t count) | |
b76cdba9 MW |
806 | { |
807 | int new_value, ret = count; | |
43cb76d9 | 808 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
809 | |
810 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 811 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
812 | bond->dev->name); |
813 | ret = -EPERM; | |
814 | goto out; | |
815 | } | |
816 | ||
817 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 818 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
819 | bond->dev->name); |
820 | ret = -EPERM; | |
821 | goto out; | |
822 | } | |
823 | ||
ece95f7f | 824 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
825 | |
826 | if ((new_value == 1) || (new_value == 0)) { | |
827 | bond->params.lacp_fast = new_value; | |
ba824a8b | 828 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 829 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
830 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
831 | new_value); | |
b76cdba9 | 832 | } else { |
a4aee5c8 | 833 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 834 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
835 | ret = -EINVAL; |
836 | } | |
837 | out: | |
838 | return ret; | |
839 | } | |
3d632c3f SH |
840 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
841 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 842 | |
655f8919 | 843 | static ssize_t bonding_show_min_links(struct device *d, |
844 | struct device_attribute *attr, | |
845 | char *buf) | |
846 | { | |
847 | struct bonding *bond = to_bond(d); | |
848 | ||
849 | return sprintf(buf, "%d\n", bond->params.min_links); | |
850 | } | |
851 | ||
852 | static ssize_t bonding_store_min_links(struct device *d, | |
853 | struct device_attribute *attr, | |
854 | const char *buf, size_t count) | |
855 | { | |
856 | struct bonding *bond = to_bond(d); | |
857 | int ret; | |
858 | unsigned int new_value; | |
859 | ||
860 | ret = kstrtouint(buf, 0, &new_value); | |
861 | if (ret < 0) { | |
862 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
863 | bond->dev->name, buf); | |
864 | return ret; | |
865 | } | |
866 | ||
867 | pr_info("%s: Setting min links value to %u\n", | |
868 | bond->dev->name, new_value); | |
869 | bond->params.min_links = new_value; | |
870 | return count; | |
871 | } | |
872 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
873 | bonding_show_min_links, bonding_store_min_links); | |
874 | ||
fd989c83 JV |
875 | static ssize_t bonding_show_ad_select(struct device *d, |
876 | struct device_attribute *attr, | |
877 | char *buf) | |
878 | { | |
879 | struct bonding *bond = to_bond(d); | |
880 | ||
881 | return sprintf(buf, "%s %d\n", | |
882 | ad_select_tbl[bond->params.ad_select].modename, | |
883 | bond->params.ad_select); | |
884 | } | |
885 | ||
886 | ||
887 | static ssize_t bonding_store_ad_select(struct device *d, | |
888 | struct device_attribute *attr, | |
889 | const char *buf, size_t count) | |
890 | { | |
891 | int new_value, ret = count; | |
892 | struct bonding *bond = to_bond(d); | |
893 | ||
894 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
895 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
896 | bond->dev->name); | |
fd989c83 JV |
897 | ret = -EPERM; |
898 | goto out; | |
899 | } | |
900 | ||
901 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
902 | ||
903 | if (new_value != -1) { | |
904 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
905 | pr_info("%s: Setting ad_select to %s (%d).\n", |
906 | bond->dev->name, ad_select_tbl[new_value].modename, | |
907 | new_value); | |
fd989c83 | 908 | } else { |
a4aee5c8 | 909 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
910 | bond->dev->name, (int)strlen(buf) - 1, buf); |
911 | ret = -EINVAL; | |
912 | } | |
913 | out: | |
914 | return ret; | |
915 | } | |
3d632c3f SH |
916 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
917 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 918 | |
ad246c99 BH |
919 | /* |
920 | * Show and set the number of peer notifications to send after a failover event. | |
921 | */ | |
922 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
923 | struct device_attribute *attr, | |
924 | char *buf) | |
925 | { | |
926 | struct bonding *bond = to_bond(d); | |
927 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
928 | } | |
929 | ||
930 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
931 | struct device_attribute *attr, | |
932 | const char *buf, size_t count) | |
933 | { | |
934 | struct bonding *bond = to_bond(d); | |
935 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
936 | return err ? err : count; | |
937 | } | |
938 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
939 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
940 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
941 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
942 | ||
b76cdba9 MW |
943 | /* |
944 | * Show and set the MII monitor interval. There are two tricky bits | |
945 | * here. First, if MII monitoring is activated, then we must disable | |
946 | * ARP monitoring. Second, if the timer isn't running, we must | |
947 | * start it. | |
948 | */ | |
43cb76d9 GKH |
949 | static ssize_t bonding_show_miimon(struct device *d, |
950 | struct device_attribute *attr, | |
951 | char *buf) | |
b76cdba9 | 952 | { |
43cb76d9 | 953 | struct bonding *bond = to_bond(d); |
b76cdba9 | 954 | |
7bd46508 | 955 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
956 | } |
957 | ||
43cb76d9 GKH |
958 | static ssize_t bonding_store_miimon(struct device *d, |
959 | struct device_attribute *attr, | |
960 | const char *buf, size_t count) | |
b76cdba9 MW |
961 | { |
962 | int new_value, ret = count; | |
43cb76d9 | 963 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
964 | |
965 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 966 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
967 | bond->dev->name); |
968 | ret = -EINVAL; | |
969 | goto out; | |
970 | } | |
971 | if (new_value < 0) { | |
a4aee5c8 | 972 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
973 | bond->dev->name, new_value, 1, INT_MAX); |
974 | ret = -EINVAL; | |
975 | goto out; | |
976 | } else { | |
a4aee5c8 JP |
977 | pr_info("%s: Setting MII monitoring interval to %d.\n", |
978 | bond->dev->name, new_value); | |
b76cdba9 | 979 | bond->params.miimon = new_value; |
3d632c3f | 980 | if (bond->params.updelay) |
a4aee5c8 JP |
981 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", |
982 | bond->dev->name, | |
983 | bond->params.updelay * bond->params.miimon); | |
3d632c3f | 984 | if (bond->params.downdelay) |
a4aee5c8 JP |
985 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", |
986 | bond->dev->name, | |
987 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 | 988 | if (bond->params.arp_interval) { |
a4aee5c8 JP |
989 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", |
990 | bond->dev->name); | |
b76cdba9 | 991 | bond->params.arp_interval = 0; |
f5b2b966 | 992 | if (bond->params.arp_validate) { |
f5b2b966 JV |
993 | bond->params.arp_validate = |
994 | BOND_ARP_VALIDATE_NONE; | |
995 | } | |
1b76b316 JV |
996 | if (delayed_work_pending(&bond->arp_work)) { |
997 | cancel_delayed_work(&bond->arp_work); | |
998 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
999 | } |
1000 | } | |
1001 | ||
1002 | if (bond->dev->flags & IFF_UP) { | |
1003 | /* If the interface is up, we may need to fire off | |
1004 | * the MII timer. If the interface is down, the | |
1005 | * timer will get fired off when the open function | |
1006 | * is called. | |
1007 | */ | |
1b76b316 JV |
1008 | if (!delayed_work_pending(&bond->mii_work)) { |
1009 | INIT_DELAYED_WORK(&bond->mii_work, | |
1010 | bond_mii_monitor); | |
1011 | queue_delayed_work(bond->wq, | |
1012 | &bond->mii_work, 0); | |
b76cdba9 MW |
1013 | } |
1014 | } | |
1015 | } | |
1016 | out: | |
1017 | return ret; | |
1018 | } | |
3d632c3f SH |
1019 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1020 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1021 | |
1022 | /* | |
1023 | * Show and set the primary slave. The store function is much | |
1024 | * simpler than bonding_store_slaves function because it only needs to | |
1025 | * handle one interface name. | |
1026 | * The bond must be a mode that supports a primary for this be | |
1027 | * set. | |
1028 | */ | |
43cb76d9 GKH |
1029 | static ssize_t bonding_show_primary(struct device *d, |
1030 | struct device_attribute *attr, | |
1031 | char *buf) | |
b76cdba9 MW |
1032 | { |
1033 | int count = 0; | |
43cb76d9 | 1034 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1035 | |
1036 | if (bond->primary_slave) | |
7bd46508 | 1037 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1038 | |
1039 | return count; | |
1040 | } | |
1041 | ||
43cb76d9 GKH |
1042 | static ssize_t bonding_store_primary(struct device *d, |
1043 | struct device_attribute *attr, | |
1044 | const char *buf, size_t count) | |
b76cdba9 MW |
1045 | { |
1046 | int i; | |
1047 | struct slave *slave; | |
43cb76d9 | 1048 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1049 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1050 | |
496a60cd EB |
1051 | if (!rtnl_trylock()) |
1052 | return restart_syscall(); | |
e843fa50 | 1053 | block_netpoll_tx(); |
e934dd78 JV |
1054 | read_lock(&bond->lock); |
1055 | write_lock_bh(&bond->curr_slave_lock); | |
1056 | ||
b76cdba9 | 1057 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1058 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1059 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1060 | goto out; |
1061 | } | |
b76cdba9 | 1062 | |
f4bb2e9c | 1063 | sscanf(buf, "%16s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1064 | |
f4bb2e9c AG |
1065 | /* check to see if we are clearing primary */ |
1066 | if (!strlen(ifname) || buf[0] == '\n') { | |
1067 | pr_info("%s: Setting primary slave to None.\n", | |
1068 | bond->dev->name); | |
1069 | bond->primary_slave = NULL; | |
1070 | bond_select_active_slave(bond); | |
1071 | goto out; | |
1072 | } | |
1073 | ||
1074 | bond_for_each_slave(bond, slave, i) { | |
1075 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
1076 | pr_info("%s: Setting %s as primary slave.\n", | |
1077 | bond->dev->name, slave->dev->name); | |
1078 | bond->primary_slave = slave; | |
1079 | strcpy(bond->params.primary, slave->dev->name); | |
1080 | bond_select_active_slave(bond); | |
1081 | goto out; | |
b76cdba9 MW |
1082 | } |
1083 | } | |
f4bb2e9c | 1084 | |
8a93664d WP |
1085 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1086 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1087 | ||
1088 | pr_info("%s: Recording %s as primary, " | |
1089 | "but it has not been enslaved to %s yet.\n", | |
1090 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1091 | out: |
e934dd78 JV |
1092 | write_unlock_bh(&bond->curr_slave_lock); |
1093 | read_unlock(&bond->lock); | |
e843fa50 | 1094 | unblock_netpoll_tx(); |
6603a6f2 JV |
1095 | rtnl_unlock(); |
1096 | ||
b76cdba9 MW |
1097 | return count; |
1098 | } | |
3d632c3f SH |
1099 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1100 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1101 | |
a549952a JP |
1102 | /* |
1103 | * Show and set the primary_reselect flag. | |
1104 | */ | |
1105 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1106 | struct device_attribute *attr, | |
1107 | char *buf) | |
1108 | { | |
1109 | struct bonding *bond = to_bond(d); | |
1110 | ||
1111 | return sprintf(buf, "%s %d\n", | |
1112 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1113 | bond->params.primary_reselect); | |
1114 | } | |
1115 | ||
1116 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1117 | struct device_attribute *attr, | |
1118 | const char *buf, size_t count) | |
1119 | { | |
1120 | int new_value, ret = count; | |
1121 | struct bonding *bond = to_bond(d); | |
1122 | ||
1123 | if (!rtnl_trylock()) | |
1124 | return restart_syscall(); | |
1125 | ||
1126 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1127 | if (new_value < 0) { | |
a4aee5c8 | 1128 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1129 | bond->dev->name, |
1130 | (int) strlen(buf) - 1, buf); | |
1131 | ret = -EINVAL; | |
1132 | goto out; | |
1133 | } | |
1134 | ||
1135 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1136 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1137 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1138 | new_value); | |
1139 | ||
e843fa50 | 1140 | block_netpoll_tx(); |
a549952a JP |
1141 | read_lock(&bond->lock); |
1142 | write_lock_bh(&bond->curr_slave_lock); | |
1143 | bond_select_active_slave(bond); | |
1144 | write_unlock_bh(&bond->curr_slave_lock); | |
1145 | read_unlock(&bond->lock); | |
e843fa50 | 1146 | unblock_netpoll_tx(); |
a549952a JP |
1147 | out: |
1148 | rtnl_unlock(); | |
1149 | return ret; | |
1150 | } | |
1151 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1152 | bonding_show_primary_reselect, | |
1153 | bonding_store_primary_reselect); | |
1154 | ||
b76cdba9 MW |
1155 | /* |
1156 | * Show and set the use_carrier flag. | |
1157 | */ | |
43cb76d9 GKH |
1158 | static ssize_t bonding_show_carrier(struct device *d, |
1159 | struct device_attribute *attr, | |
1160 | char *buf) | |
b76cdba9 | 1161 | { |
43cb76d9 | 1162 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1163 | |
7bd46508 | 1164 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1165 | } |
1166 | ||
43cb76d9 GKH |
1167 | static ssize_t bonding_store_carrier(struct device *d, |
1168 | struct device_attribute *attr, | |
1169 | const char *buf, size_t count) | |
b76cdba9 MW |
1170 | { |
1171 | int new_value, ret = count; | |
43cb76d9 | 1172 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1173 | |
1174 | ||
1175 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1176 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1177 | bond->dev->name); |
1178 | ret = -EINVAL; | |
1179 | goto out; | |
1180 | } | |
1181 | if ((new_value == 0) || (new_value == 1)) { | |
1182 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1183 | pr_info("%s: Setting use_carrier to %d.\n", |
1184 | bond->dev->name, new_value); | |
b76cdba9 | 1185 | } else { |
a4aee5c8 JP |
1186 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1187 | bond->dev->name, new_value); | |
b76cdba9 MW |
1188 | } |
1189 | out: | |
672bda33 | 1190 | return ret; |
b76cdba9 | 1191 | } |
3d632c3f SH |
1192 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1193 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1194 | |
1195 | ||
1196 | /* | |
1197 | * Show and set currently active_slave. | |
1198 | */ | |
43cb76d9 GKH |
1199 | static ssize_t bonding_show_active_slave(struct device *d, |
1200 | struct device_attribute *attr, | |
1201 | char *buf) | |
b76cdba9 MW |
1202 | { |
1203 | struct slave *curr; | |
43cb76d9 | 1204 | struct bonding *bond = to_bond(d); |
16cd0160 | 1205 | int count = 0; |
b76cdba9 | 1206 | |
b76cdba9 MW |
1207 | read_lock(&bond->curr_slave_lock); |
1208 | curr = bond->curr_active_slave; | |
1209 | read_unlock(&bond->curr_slave_lock); | |
1210 | ||
1211 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1212 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1213 | return count; |
1214 | } | |
1215 | ||
43cb76d9 GKH |
1216 | static ssize_t bonding_store_active_slave(struct device *d, |
1217 | struct device_attribute *attr, | |
1218 | const char *buf, size_t count) | |
b76cdba9 MW |
1219 | { |
1220 | int i; | |
1221 | struct slave *slave; | |
3d632c3f SH |
1222 | struct slave *old_active = NULL; |
1223 | struct slave *new_active = NULL; | |
43cb76d9 | 1224 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1225 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1226 | |
496a60cd EB |
1227 | if (!rtnl_trylock()) |
1228 | return restart_syscall(); | |
e843fa50 NH |
1229 | |
1230 | block_netpoll_tx(); | |
e934dd78 JV |
1231 | read_lock(&bond->lock); |
1232 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1233 | |
f4bb2e9c | 1234 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 | 1235 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f | 1236 | bond->dev->name, bond->dev->name, bond->params.mode); |
f4bb2e9c AG |
1237 | goto out; |
1238 | } | |
1239 | ||
1240 | sscanf(buf, "%16s", ifname); /* IFNAMSIZ */ | |
1241 | ||
1242 | /* check to see if we are clearing active */ | |
1243 | if (!strlen(ifname) || buf[0] == '\n') { | |
1244 | pr_info("%s: Clearing current active slave.\n", | |
1245 | bond->dev->name); | |
1246 | bond->curr_active_slave = NULL; | |
1247 | bond_select_active_slave(bond); | |
1248 | goto out; | |
1249 | } | |
1250 | ||
1251 | bond_for_each_slave(bond, slave, i) { | |
1252 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
1253 | old_active = bond->curr_active_slave; | |
1254 | new_active = slave; | |
1255 | if (new_active == old_active) { | |
1256 | /* do nothing */ | |
1257 | pr_info("%s: %s is already the current" | |
1258 | " active slave.\n", | |
1259 | bond->dev->name, | |
1260 | slave->dev->name); | |
1261 | goto out; | |
1262 | } | |
1263 | else { | |
1264 | if ((new_active) && | |
1265 | (old_active) && | |
1266 | (new_active->link == BOND_LINK_UP) && | |
1267 | IS_UP(new_active->dev)) { | |
1268 | pr_info("%s: Setting %s as active" | |
1269 | " slave.\n", | |
a4aee5c8 JP |
1270 | bond->dev->name, |
1271 | slave->dev->name); | |
f4bb2e9c AG |
1272 | bond_change_active_slave(bond, |
1273 | new_active); | |
b76cdba9 MW |
1274 | } |
1275 | else { | |
f4bb2e9c AG |
1276 | pr_info("%s: Could not set %s as" |
1277 | " active slave; either %s is" | |
1278 | " down or the link is down.\n", | |
1279 | bond->dev->name, | |
1280 | slave->dev->name, | |
1281 | slave->dev->name); | |
b76cdba9 | 1282 | } |
f4bb2e9c | 1283 | goto out; |
b76cdba9 MW |
1284 | } |
1285 | } | |
b76cdba9 | 1286 | } |
f4bb2e9c AG |
1287 | |
1288 | pr_info("%s: Unable to set %.*s as active slave.\n", | |
1289 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
3d632c3f | 1290 | out: |
e934dd78 JV |
1291 | write_unlock_bh(&bond->curr_slave_lock); |
1292 | read_unlock(&bond->lock); | |
e843fa50 NH |
1293 | unblock_netpoll_tx(); |
1294 | ||
6603a6f2 JV |
1295 | rtnl_unlock(); |
1296 | ||
b76cdba9 MW |
1297 | return count; |
1298 | ||
1299 | } | |
3d632c3f SH |
1300 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1301 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1302 | |
1303 | ||
1304 | /* | |
1305 | * Show link status of the bond interface. | |
1306 | */ | |
43cb76d9 GKH |
1307 | static ssize_t bonding_show_mii_status(struct device *d, |
1308 | struct device_attribute *attr, | |
1309 | char *buf) | |
b76cdba9 MW |
1310 | { |
1311 | struct slave *curr; | |
43cb76d9 | 1312 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1313 | |
1314 | read_lock(&bond->curr_slave_lock); | |
1315 | curr = bond->curr_active_slave; | |
1316 | read_unlock(&bond->curr_slave_lock); | |
1317 | ||
3d632c3f | 1318 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1319 | } |
43cb76d9 | 1320 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 MW |
1321 | |
1322 | ||
1323 | /* | |
1324 | * Show current 802.3ad aggregator ID. | |
1325 | */ | |
43cb76d9 GKH |
1326 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1327 | struct device_attribute *attr, | |
1328 | char *buf) | |
b76cdba9 MW |
1329 | { |
1330 | int count = 0; | |
43cb76d9 | 1331 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1332 | |
1333 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1334 | struct ad_info ad_info; | |
3d632c3f SH |
1335 | count = sprintf(buf, "%d\n", |
1336 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1337 | ? 0 : ad_info.aggregator_id); | |
b76cdba9 | 1338 | } |
b76cdba9 MW |
1339 | |
1340 | return count; | |
1341 | } | |
43cb76d9 | 1342 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1343 | |
1344 | ||
1345 | /* | |
1346 | * Show number of active 802.3ad ports. | |
1347 | */ | |
43cb76d9 GKH |
1348 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1349 | struct device_attribute *attr, | |
1350 | char *buf) | |
b76cdba9 MW |
1351 | { |
1352 | int count = 0; | |
43cb76d9 | 1353 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1354 | |
1355 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1356 | struct ad_info ad_info; | |
3d632c3f SH |
1357 | count = sprintf(buf, "%d\n", |
1358 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1359 | ? 0 : ad_info.ports); | |
b76cdba9 | 1360 | } |
b76cdba9 MW |
1361 | |
1362 | return count; | |
1363 | } | |
43cb76d9 | 1364 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1365 | |
1366 | ||
1367 | /* | |
1368 | * Show current 802.3ad actor key. | |
1369 | */ | |
43cb76d9 GKH |
1370 | static ssize_t bonding_show_ad_actor_key(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.actor_key); | |
b76cdba9 | 1382 | } |
b76cdba9 MW |
1383 | |
1384 | return count; | |
1385 | } | |
43cb76d9 | 1386 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1387 | |
1388 | ||
1389 | /* | |
1390 | * Show current 802.3ad partner key. | |
1391 | */ | |
43cb76d9 GKH |
1392 | static ssize_t bonding_show_ad_partner_key(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.partner_key); | |
b76cdba9 | 1404 | } |
b76cdba9 MW |
1405 | |
1406 | return count; | |
1407 | } | |
43cb76d9 | 1408 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1409 | |
1410 | ||
1411 | /* | |
1412 | * Show current 802.3ad partner mac. | |
1413 | */ | |
43cb76d9 GKH |
1414 | static ssize_t bonding_show_ad_partner_mac(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 | 1423 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1424 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1425 | } |
b76cdba9 MW |
1426 | |
1427 | return count; | |
1428 | } | |
43cb76d9 | 1429 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1430 | |
bb1d9123 AG |
1431 | /* |
1432 | * Show the queue_ids of the slaves in the current bond. | |
1433 | */ | |
1434 | static ssize_t bonding_show_queue_id(struct device *d, | |
1435 | struct device_attribute *attr, | |
1436 | char *buf) | |
1437 | { | |
1438 | struct slave *slave; | |
1439 | int i, res = 0; | |
1440 | struct bonding *bond = to_bond(d); | |
1441 | ||
1442 | if (!rtnl_trylock()) | |
1443 | return restart_syscall(); | |
1444 | ||
1445 | read_lock(&bond->lock); | |
1446 | bond_for_each_slave(bond, slave, i) { | |
79236680 NP |
1447 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1448 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1449 | if ((PAGE_SIZE - res) > 10) |
1450 | res = PAGE_SIZE - 10; | |
1451 | res += sprintf(buf + res, "++more++ "); | |
1452 | break; | |
1453 | } | |
1454 | res += sprintf(buf + res, "%s:%d ", | |
1455 | slave->dev->name, slave->queue_id); | |
1456 | } | |
1457 | read_unlock(&bond->lock); | |
1458 | if (res) | |
1459 | buf[res-1] = '\n'; /* eat the leftover space */ | |
1460 | rtnl_unlock(); | |
1461 | return res; | |
1462 | } | |
1463 | ||
1464 | /* | |
1465 | * Set the queue_ids of the slaves in the current bond. The bond | |
1466 | * interface must be enslaved for this to work. | |
1467 | */ | |
1468 | static ssize_t bonding_store_queue_id(struct device *d, | |
1469 | struct device_attribute *attr, | |
1470 | const char *buffer, size_t count) | |
1471 | { | |
1472 | struct slave *slave, *update_slave; | |
1473 | struct bonding *bond = to_bond(d); | |
1474 | u16 qid; | |
1475 | int i, ret = count; | |
1476 | char *delim; | |
1477 | struct net_device *sdev = NULL; | |
1478 | ||
1479 | if (!rtnl_trylock()) | |
1480 | return restart_syscall(); | |
1481 | ||
1482 | /* delim will point to queue id if successful */ | |
1483 | delim = strchr(buffer, ':'); | |
1484 | if (!delim) | |
1485 | goto err_no_cmd; | |
1486 | ||
1487 | /* | |
1488 | * Terminate string that points to device name and bump it | |
1489 | * up one, so we can read the queue id there. | |
1490 | */ | |
1491 | *delim = '\0'; | |
1492 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1493 | goto err_no_cmd; | |
1494 | ||
1495 | /* Check buffer length, valid ifname and queue id */ | |
1496 | if (strlen(buffer) > IFNAMSIZ || | |
1497 | !dev_valid_name(buffer) || | |
1498 | qid > bond->params.tx_queues) | |
1499 | goto err_no_cmd; | |
1500 | ||
1501 | /* Get the pointer to that interface if it exists */ | |
1502 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1503 | if (!sdev) | |
1504 | goto err_no_cmd; | |
1505 | ||
1506 | read_lock(&bond->lock); | |
1507 | ||
1508 | /* Search for thes slave and check for duplicate qids */ | |
1509 | update_slave = NULL; | |
1510 | bond_for_each_slave(bond, slave, i) { | |
1511 | if (sdev == slave->dev) | |
1512 | /* | |
1513 | * We don't need to check the matching | |
1514 | * slave for dups, since we're overwriting it | |
1515 | */ | |
1516 | update_slave = slave; | |
1517 | else if (qid && qid == slave->queue_id) { | |
1518 | goto err_no_cmd_unlock; | |
1519 | } | |
1520 | } | |
1521 | ||
1522 | if (!update_slave) | |
1523 | goto err_no_cmd_unlock; | |
1524 | ||
1525 | /* Actually set the qids for the slave */ | |
1526 | update_slave->queue_id = qid; | |
1527 | ||
1528 | read_unlock(&bond->lock); | |
1529 | out: | |
1530 | rtnl_unlock(); | |
1531 | return ret; | |
1532 | ||
1533 | err_no_cmd_unlock: | |
1534 | read_unlock(&bond->lock); | |
1535 | err_no_cmd: | |
1536 | pr_info("invalid input for queue_id set for %s.\n", | |
1537 | bond->dev->name); | |
1538 | ret = -EPERM; | |
1539 | goto out; | |
1540 | } | |
1541 | ||
1542 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1543 | bonding_store_queue_id); | |
1544 | ||
1545 | ||
ebd8e497 AG |
1546 | /* |
1547 | * Show and set the all_slaves_active flag. | |
1548 | */ | |
1549 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1550 | struct device_attribute *attr, | |
1551 | char *buf) | |
1552 | { | |
1553 | struct bonding *bond = to_bond(d); | |
1554 | ||
1555 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1556 | } | |
1557 | ||
1558 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1559 | struct device_attribute *attr, | |
1560 | const char *buf, size_t count) | |
1561 | { | |
1562 | int i, new_value, ret = count; | |
1563 | struct bonding *bond = to_bond(d); | |
1564 | struct slave *slave; | |
1565 | ||
1566 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1567 | pr_err("%s: no all_slaves_active value specified.\n", | |
1568 | bond->dev->name); | |
1569 | ret = -EINVAL; | |
1570 | goto out; | |
1571 | } | |
1572 | ||
1573 | if (new_value == bond->params.all_slaves_active) | |
1574 | goto out; | |
1575 | ||
1576 | if ((new_value == 0) || (new_value == 1)) { | |
1577 | bond->params.all_slaves_active = new_value; | |
1578 | } else { | |
1579 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1580 | bond->dev->name, new_value); | |
1581 | ret = -EINVAL; | |
1582 | goto out; | |
1583 | } | |
b76cdba9 | 1584 | |
ebd8e497 | 1585 | bond_for_each_slave(bond, slave, i) { |
e30bc066 | 1586 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1587 | if (new_value) |
2d7011ca | 1588 | slave->inactive = 0; |
ebd8e497 | 1589 | else |
2d7011ca | 1590 | slave->inactive = 1; |
ebd8e497 AG |
1591 | } |
1592 | } | |
1593 | out: | |
672bda33 | 1594 | return ret; |
ebd8e497 AG |
1595 | } |
1596 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1597 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1598 | |
c2952c31 FL |
1599 | /* |
1600 | * Show and set the number of IGMP membership reports to send on link failure | |
1601 | */ | |
1602 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1603 | struct device_attribute *attr, |
1604 | char *buf) | |
c2952c31 FL |
1605 | { |
1606 | struct bonding *bond = to_bond(d); | |
1607 | ||
1608 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1609 | } | |
1610 | ||
1611 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1612 | struct device_attribute *attr, |
1613 | const char *buf, size_t count) | |
c2952c31 FL |
1614 | { |
1615 | int new_value, ret = count; | |
1616 | struct bonding *bond = to_bond(d); | |
1617 | ||
1618 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1619 | pr_err("%s: no resend_igmp value specified.\n", | |
1620 | bond->dev->name); | |
1621 | ret = -EINVAL; | |
1622 | goto out; | |
1623 | } | |
1624 | ||
94265cf5 | 1625 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1626 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1627 | bond->dev->name, new_value); | |
1628 | ret = -EINVAL; | |
1629 | goto out; | |
1630 | } | |
1631 | ||
1632 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1633 | bond->dev->name, new_value); | |
1634 | bond->params.resend_igmp = new_value; | |
1635 | out: | |
1636 | return ret; | |
1637 | } | |
1638 | ||
1639 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1640 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1641 | ||
b76cdba9 | 1642 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1643 | &dev_attr_slaves.attr, |
1644 | &dev_attr_mode.attr, | |
dd957c57 | 1645 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1646 | &dev_attr_arp_validate.attr, |
1647 | &dev_attr_arp_interval.attr, | |
1648 | &dev_attr_arp_ip_target.attr, | |
1649 | &dev_attr_downdelay.attr, | |
1650 | &dev_attr_updelay.attr, | |
1651 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1652 | &dev_attr_ad_select.attr, |
43cb76d9 | 1653 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1654 | &dev_attr_num_grat_arp.attr, |
1655 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1656 | &dev_attr_miimon.attr, |
1657 | &dev_attr_primary.attr, | |
a549952a | 1658 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1659 | &dev_attr_use_carrier.attr, |
1660 | &dev_attr_active_slave.attr, | |
1661 | &dev_attr_mii_status.attr, | |
1662 | &dev_attr_ad_aggregator.attr, | |
1663 | &dev_attr_ad_num_ports.attr, | |
1664 | &dev_attr_ad_actor_key.attr, | |
1665 | &dev_attr_ad_partner_key.attr, | |
1666 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1667 | &dev_attr_queue_id.attr, |
ebd8e497 | 1668 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1669 | &dev_attr_resend_igmp.attr, |
655f8919 | 1670 | &dev_attr_min_links.attr, |
b76cdba9 MW |
1671 | NULL, |
1672 | }; | |
1673 | ||
1674 | static struct attribute_group bonding_group = { | |
1675 | .name = "bonding", | |
1676 | .attrs = per_bond_attrs, | |
1677 | }; | |
1678 | ||
1679 | /* | |
1680 | * Initialize sysfs. This sets up the bonding_masters file in | |
1681 | * /sys/class/net. | |
1682 | */ | |
4c22400a | 1683 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1684 | { |
b8a9787e | 1685 | int ret; |
b76cdba9 | 1686 | |
4c22400a | 1687 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1688 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a EB |
1689 | |
1690 | ret = netdev_class_create_file(&bn->class_attr_bonding_masters); | |
877cbd36 JV |
1691 | /* |
1692 | * Permit multiple loads of the module by ignoring failures to | |
1693 | * create the bonding_masters sysfs file. Bonding devices | |
1694 | * created by second or subsequent loads of the module will | |
1695 | * not be listed in, or controllable by, bonding_masters, but | |
1696 | * will have the usual "bonding" sysfs directory. | |
1697 | * | |
1698 | * This is done to preserve backwards compatibility for | |
1699 | * initscripts/sysconfig, which load bonding multiple times to | |
1700 | * configure multiple bonding devices. | |
1701 | */ | |
1702 | if (ret == -EEXIST) { | |
38d2f38b | 1703 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1704 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1705 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1706 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1707 | class_attr_bonding_masters.attr.name); |
130aa61a | 1708 | ret = 0; |
877cbd36 | 1709 | } |
b76cdba9 MW |
1710 | |
1711 | return ret; | |
1712 | ||
1713 | } | |
1714 | ||
1715 | /* | |
1716 | * Remove /sys/class/net/bonding_masters. | |
1717 | */ | |
4c22400a | 1718 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1719 | { |
4c22400a | 1720 | netdev_class_remove_file(&bn->class_attr_bonding_masters); |
b76cdba9 MW |
1721 | } |
1722 | ||
1723 | /* | |
1724 | * Initialize sysfs for each bond. This sets up and registers | |
1725 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1726 | */ | |
6151b3d4 | 1727 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1728 | { |
6151b3d4 | 1729 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1730 | } |
1731 |