Commit | Line | Data |
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b76cdba9 MW |
1 | /* |
2 | * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
11 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
b76cdba9 | 21 | */ |
a4aee5c8 JP |
22 | |
23 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
24 | ||
b76cdba9 MW |
25 | #include <linux/kernel.h> |
26 | #include <linux/module.h> | |
b76cdba9 | 27 | #include <linux/device.h> |
d43c36dc | 28 | #include <linux/sched.h> |
b76cdba9 MW |
29 | #include <linux/fs.h> |
30 | #include <linux/types.h> | |
31 | #include <linux/string.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/inetdevice.h> | |
34 | #include <linux/in.h> | |
35 | #include <linux/sysfs.h> | |
b76cdba9 MW |
36 | #include <linux/ctype.h> |
37 | #include <linux/inet.h> | |
38 | #include <linux/rtnetlink.h> | |
5c5129b5 | 39 | #include <linux/etherdevice.h> |
881d966b | 40 | #include <net/net_namespace.h> |
ec87fd3b EB |
41 | #include <net/netns/generic.h> |
42 | #include <linux/nsproxy.h> | |
b76cdba9 | 43 | |
b76cdba9 | 44 | #include "bonding.h" |
5a03cdb7 | 45 | |
3d632c3f | 46 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 47 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 48 | |
b76cdba9 MW |
49 | /* |
50 | * "show" function for the bond_masters attribute. | |
51 | * The class parameter is ignored. | |
52 | */ | |
28812fe1 AK |
53 | static ssize_t bonding_show_bonds(struct class *cls, |
54 | struct class_attribute *attr, | |
55 | char *buf) | |
b76cdba9 | 56 | { |
4c22400a EB |
57 | struct bond_net *bn = |
58 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
59 | int res = 0; |
60 | struct bonding *bond; | |
61 | ||
7e083840 | 62 | rtnl_lock(); |
b76cdba9 | 63 | |
ec87fd3b | 64 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
65 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
66 | /* not enough space for another interface name */ | |
67 | if ((PAGE_SIZE - res) > 10) | |
68 | res = PAGE_SIZE - 10; | |
b8843665 | 69 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
70 | break; |
71 | } | |
b8843665 | 72 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 73 | } |
1dcdcd69 WF |
74 | if (res) |
75 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
76 | |
77 | rtnl_unlock(); | |
b76cdba9 MW |
78 | return res; |
79 | } | |
80 | ||
4c22400a | 81 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
82 | { |
83 | struct bonding *bond; | |
84 | ||
ec87fd3b | 85 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
86 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
87 | return bond->dev; | |
88 | } | |
89 | return NULL; | |
90 | } | |
91 | ||
b76cdba9 MW |
92 | /* |
93 | * "store" function for the bond_masters attribute. This is what | |
94 | * creates and deletes entire bonds. | |
95 | * | |
96 | * The class parameter is ignored. | |
97 | * | |
98 | */ | |
99 | ||
3d632c3f | 100 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 101 | struct class_attribute *attr, |
3d632c3f | 102 | const char *buffer, size_t count) |
b76cdba9 | 103 | { |
4c22400a EB |
104 | struct bond_net *bn = |
105 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
106 | char command[IFNAMSIZ + 1] = {0, }; |
107 | char *ifname; | |
027ea041 | 108 | int rv, res = count; |
b76cdba9 | 109 | |
b76cdba9 MW |
110 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
111 | ifname = command + 1; | |
112 | if ((strlen(command) <= 1) || | |
113 | !dev_valid_name(ifname)) | |
114 | goto err_no_cmd; | |
115 | ||
116 | if (command[0] == '+') { | |
a4aee5c8 | 117 | pr_info("%s is being created...\n", ifname); |
4c22400a | 118 | rv = bond_create(bn->net, ifname); |
027ea041 | 119 | if (rv) { |
5f86cad1 PO |
120 | if (rv == -EEXIST) |
121 | pr_info("%s already exists.\n", ifname); | |
122 | else | |
123 | pr_info("%s creation failed.\n", ifname); | |
027ea041 | 124 | res = rv; |
b76cdba9 | 125 | } |
373500db SH |
126 | } else if (command[0] == '-') { |
127 | struct net_device *bond_dev; | |
b76cdba9 | 128 | |
027ea041 | 129 | rtnl_lock(); |
4c22400a | 130 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 131 | if (bond_dev) { |
a4aee5c8 | 132 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
133 | unregister_netdevice(bond_dev); |
134 | } else { | |
a4aee5c8 | 135 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
136 | res = -ENODEV; |
137 | } | |
138 | rtnl_unlock(); | |
139 | } else | |
140 | goto err_no_cmd; | |
027ea041 | 141 | |
373500db SH |
142 | /* Always return either count or an error. If you return 0, you'll |
143 | * get called forever, which is bad. | |
144 | */ | |
145 | return res; | |
b76cdba9 MW |
146 | |
147 | err_no_cmd: | |
a4aee5c8 | 148 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 149 | return -EPERM; |
b76cdba9 | 150 | } |
373500db | 151 | |
4c22400a EB |
152 | static const void *bonding_namespace(struct class *cls, |
153 | const struct class_attribute *attr) | |
154 | { | |
155 | const struct bond_net *bn = | |
156 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
157 | return bn->net; | |
158 | } | |
159 | ||
b76cdba9 | 160 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
161 | static const struct class_attribute class_attr_bonding_masters = { |
162 | .attr = { | |
163 | .name = "bonding_masters", | |
164 | .mode = S_IWUSR | S_IRUGO, | |
165 | }, | |
166 | .show = bonding_show_bonds, | |
167 | .store = bonding_store_bonds, | |
168 | .namespace = bonding_namespace, | |
169 | }; | |
b76cdba9 | 170 | |
3d632c3f SH |
171 | int bond_create_slave_symlinks(struct net_device *master, |
172 | struct net_device *slave) | |
b76cdba9 MW |
173 | { |
174 | char linkname[IFNAMSIZ+7]; | |
175 | int ret = 0; | |
176 | ||
177 | /* first, create a link from the slave back to the master */ | |
43cb76d9 | 178 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
b76cdba9 MW |
179 | "master"); |
180 | if (ret) | |
181 | return ret; | |
182 | /* next, create a link from the master to the slave */ | |
3d632c3f | 183 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 184 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
b76cdba9 | 185 | linkname); |
9fe16b78 VF |
186 | |
187 | /* free the master link created earlier in case of error */ | |
188 | if (ret) | |
189 | sysfs_remove_link(&(slave->dev.kobj), "master"); | |
190 | ||
b76cdba9 MW |
191 | return ret; |
192 | ||
193 | } | |
194 | ||
3d632c3f SH |
195 | void bond_destroy_slave_symlinks(struct net_device *master, |
196 | struct net_device *slave) | |
b76cdba9 MW |
197 | { |
198 | char linkname[IFNAMSIZ+7]; | |
199 | ||
43cb76d9 | 200 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
3d632c3f | 201 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 202 | sysfs_remove_link(&(master->dev.kobj), linkname); |
b76cdba9 MW |
203 | } |
204 | ||
205 | ||
206 | /* | |
207 | * Show the slaves in the current bond. | |
208 | */ | |
43cb76d9 GKH |
209 | static ssize_t bonding_show_slaves(struct device *d, |
210 | struct device_attribute *attr, char *buf) | |
b76cdba9 MW |
211 | { |
212 | struct slave *slave; | |
213 | int i, res = 0; | |
43cb76d9 | 214 | struct bonding *bond = to_bond(d); |
b76cdba9 | 215 | |
6603a6f2 | 216 | read_lock(&bond->lock); |
b76cdba9 MW |
217 | bond_for_each_slave(bond, slave, i) { |
218 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
219 | /* not enough space for another interface name */ | |
220 | if ((PAGE_SIZE - res) > 10) | |
221 | res = PAGE_SIZE - 10; | |
7bd46508 | 222 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
223 | break; |
224 | } | |
225 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
226 | } | |
6603a6f2 | 227 | read_unlock(&bond->lock); |
1dcdcd69 WF |
228 | if (res) |
229 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
230 | return res; |
231 | } | |
232 | ||
233 | /* | |
234 | * Set the slaves in the current bond. The bond interface must be | |
235 | * up for this to succeed. | |
f9f3545e JP |
236 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
237 | * All hard work should be done there. | |
b76cdba9 | 238 | */ |
43cb76d9 GKH |
239 | static ssize_t bonding_store_slaves(struct device *d, |
240 | struct device_attribute *attr, | |
241 | const char *buffer, size_t count) | |
b76cdba9 MW |
242 | { |
243 | char command[IFNAMSIZ + 1] = { 0, }; | |
244 | char *ifname; | |
f9f3545e JP |
245 | int res, ret = count; |
246 | struct net_device *dev; | |
43cb76d9 | 247 | struct bonding *bond = to_bond(d); |
b76cdba9 | 248 | |
496a60cd EB |
249 | if (!rtnl_trylock()) |
250 | return restart_syscall(); | |
027ea041 | 251 | |
b76cdba9 MW |
252 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
253 | ifname = command + 1; | |
254 | if ((strlen(command) <= 1) || | |
255 | !dev_valid_name(ifname)) | |
256 | goto err_no_cmd; | |
257 | ||
f9f3545e JP |
258 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
259 | if (!dev) { | |
260 | pr_info("%s: Interface %s does not exist!\n", | |
261 | bond->dev->name, ifname); | |
262 | ret = -ENODEV; | |
263 | goto out; | |
264 | } | |
b76cdba9 | 265 | |
f9f3545e JP |
266 | switch (command[0]) { |
267 | case '+': | |
268 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 269 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 270 | break; |
3d632c3f | 271 | |
f9f3545e JP |
272 | case '-': |
273 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
274 | res = bond_release(bond->dev, dev); | |
275 | break; | |
b76cdba9 | 276 | |
f9f3545e JP |
277 | default: |
278 | goto err_no_cmd; | |
b76cdba9 MW |
279 | } |
280 | ||
f9f3545e JP |
281 | if (res) |
282 | ret = res; | |
283 | goto out; | |
284 | ||
b76cdba9 | 285 | err_no_cmd: |
a4aee5c8 JP |
286 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
287 | bond->dev->name); | |
b76cdba9 MW |
288 | ret = -EPERM; |
289 | ||
290 | out: | |
027ea041 | 291 | rtnl_unlock(); |
b76cdba9 MW |
292 | return ret; |
293 | } | |
294 | ||
3d632c3f SH |
295 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
296 | bonding_store_slaves); | |
b76cdba9 MW |
297 | |
298 | /* | |
299 | * Show and set the bonding mode. The bond interface must be down to | |
300 | * change the mode. | |
301 | */ | |
43cb76d9 GKH |
302 | static ssize_t bonding_show_mode(struct device *d, |
303 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 304 | { |
43cb76d9 | 305 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
306 | |
307 | return sprintf(buf, "%s %d\n", | |
308 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 309 | bond->params.mode); |
b76cdba9 MW |
310 | } |
311 | ||
43cb76d9 GKH |
312 | static ssize_t bonding_store_mode(struct device *d, |
313 | struct device_attribute *attr, | |
314 | const char *buf, size_t count) | |
b76cdba9 MW |
315 | { |
316 | int new_value, ret = count; | |
43cb76d9 | 317 | struct bonding *bond = to_bond(d); |
b76cdba9 | 318 | |
ea6836dd | 319 | if (!rtnl_trylock()) |
320 | return restart_syscall(); | |
321 | ||
b76cdba9 | 322 | if (bond->dev->flags & IFF_UP) { |
a4aee5c8 JP |
323 | pr_err("unable to update mode of %s because interface is up.\n", |
324 | bond->dev->name); | |
b76cdba9 MW |
325 | ret = -EPERM; |
326 | goto out; | |
327 | } | |
328 | ||
4a8bb7e2 VF |
329 | if (bond->slave_cnt > 0) { |
330 | pr_err("unable to update mode of %s because it has slaves.\n", | |
331 | bond->dev->name); | |
332 | ret = -EPERM; | |
333 | goto out; | |
334 | } | |
335 | ||
ece95f7f | 336 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 337 | if (new_value < 0) { |
a4aee5c8 JP |
338 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
339 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
340 | ret = -EINVAL; |
341 | goto out; | |
c5cb002f AG |
342 | } |
343 | if ((new_value == BOND_MODE_ALB || | |
344 | new_value == BOND_MODE_TLB) && | |
345 | bond->params.arp_interval) { | |
346 | pr_err("%s: %s mode is incompatible with arp monitoring.\n", | |
347 | bond->dev->name, bond_mode_tbl[new_value].modename); | |
348 | ret = -EINVAL; | |
349 | goto out; | |
350 | } | |
8f903c70 | 351 | |
c5cb002f AG |
352 | bond->params.mode = new_value; |
353 | bond_set_mode_ops(bond, bond->params.mode); | |
354 | pr_info("%s: setting mode to %s (%d).\n", | |
355 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
356 | new_value); | |
b76cdba9 | 357 | out: |
ea6836dd | 358 | rtnl_unlock(); |
b76cdba9 MW |
359 | return ret; |
360 | } | |
3d632c3f SH |
361 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
362 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
363 | |
364 | /* | |
3d632c3f SH |
365 | * Show and set the bonding transmit hash method. |
366 | * The bond interface must be down to change the xmit hash policy. | |
b76cdba9 | 367 | */ |
43cb76d9 GKH |
368 | static ssize_t bonding_show_xmit_hash(struct device *d, |
369 | struct device_attribute *attr, | |
370 | char *buf) | |
b76cdba9 | 371 | { |
43cb76d9 | 372 | struct bonding *bond = to_bond(d); |
b76cdba9 | 373 | |
8e4b9329 WF |
374 | return sprintf(buf, "%s %d\n", |
375 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
376 | bond->params.xmit_policy); | |
b76cdba9 MW |
377 | } |
378 | ||
43cb76d9 GKH |
379 | static ssize_t bonding_store_xmit_hash(struct device *d, |
380 | struct device_attribute *attr, | |
381 | const char *buf, size_t count) | |
b76cdba9 MW |
382 | { |
383 | int new_value, ret = count; | |
43cb76d9 | 384 | struct bonding *bond = to_bond(d); |
b76cdba9 | 385 | |
ece95f7f | 386 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 387 | if (new_value < 0) { |
a4aee5c8 | 388 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
389 | bond->dev->name, |
390 | (int)strlen(buf) - 1, buf); | |
391 | ret = -EINVAL; | |
b76cdba9 MW |
392 | } else { |
393 | bond->params.xmit_policy = new_value; | |
394 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 | 395 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
396 | bond->dev->name, |
397 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 | 398 | } |
53edee2c | 399 | |
b76cdba9 MW |
400 | return ret; |
401 | } | |
3d632c3f SH |
402 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
403 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 404 | |
f5b2b966 JV |
405 | /* |
406 | * Show and set arp_validate. | |
407 | */ | |
43cb76d9 GKH |
408 | static ssize_t bonding_show_arp_validate(struct device *d, |
409 | struct device_attribute *attr, | |
410 | char *buf) | |
f5b2b966 | 411 | { |
43cb76d9 | 412 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
413 | |
414 | return sprintf(buf, "%s %d\n", | |
415 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 416 | bond->params.arp_validate); |
f5b2b966 JV |
417 | } |
418 | ||
43cb76d9 GKH |
419 | static ssize_t bonding_store_arp_validate(struct device *d, |
420 | struct device_attribute *attr, | |
421 | const char *buf, size_t count) | |
f5b2b966 JV |
422 | { |
423 | int new_value; | |
43cb76d9 | 424 | struct bonding *bond = to_bond(d); |
f5b2b966 | 425 | |
ece95f7f | 426 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 427 | if (new_value < 0) { |
a4aee5c8 | 428 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 JV |
429 | bond->dev->name, buf); |
430 | return -EINVAL; | |
431 | } | |
432 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
a4aee5c8 | 433 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 JV |
434 | bond->dev->name); |
435 | return -EINVAL; | |
436 | } | |
a4aee5c8 JP |
437 | pr_info("%s: setting arp_validate to %s (%d).\n", |
438 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
439 | new_value); | |
f5b2b966 | 440 | |
f5b2b966 JV |
441 | bond->params.arp_validate = new_value; |
442 | ||
443 | return count; | |
444 | } | |
445 | ||
3d632c3f SH |
446 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
447 | bonding_store_arp_validate); | |
f5b2b966 | 448 | |
dd957c57 JV |
449 | /* |
450 | * Show and store fail_over_mac. User only allowed to change the | |
451 | * value when there are no slaves. | |
452 | */ | |
3d632c3f SH |
453 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
454 | struct device_attribute *attr, | |
455 | char *buf) | |
dd957c57 JV |
456 | { |
457 | struct bonding *bond = to_bond(d); | |
458 | ||
3915c1e8 JV |
459 | return sprintf(buf, "%s %d\n", |
460 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
461 | bond->params.fail_over_mac); | |
dd957c57 JV |
462 | } |
463 | ||
3d632c3f SH |
464 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
465 | struct device_attribute *attr, | |
466 | const char *buf, size_t count) | |
dd957c57 JV |
467 | { |
468 | int new_value; | |
dd957c57 JV |
469 | struct bonding *bond = to_bond(d); |
470 | ||
471 | if (bond->slave_cnt != 0) { | |
a4aee5c8 | 472 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 473 | bond->dev->name); |
3915c1e8 | 474 | return -EPERM; |
dd957c57 JV |
475 | } |
476 | ||
3915c1e8 JV |
477 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
478 | if (new_value < 0) { | |
a4aee5c8 | 479 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 JV |
480 | bond->dev->name, buf); |
481 | return -EINVAL; | |
dd957c57 JV |
482 | } |
483 | ||
3915c1e8 | 484 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
485 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
486 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
487 | new_value); | |
3915c1e8 JV |
488 | |
489 | return count; | |
dd957c57 JV |
490 | } |
491 | ||
3d632c3f SH |
492 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
493 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 494 | |
b76cdba9 MW |
495 | /* |
496 | * Show and set the arp timer interval. There are two tricky bits | |
497 | * here. First, if ARP monitoring is activated, then we must disable | |
498 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
499 | * start it. | |
500 | */ | |
43cb76d9 GKH |
501 | static ssize_t bonding_show_arp_interval(struct device *d, |
502 | struct device_attribute *attr, | |
503 | char *buf) | |
b76cdba9 | 504 | { |
43cb76d9 | 505 | struct bonding *bond = to_bond(d); |
b76cdba9 | 506 | |
7bd46508 | 507 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
508 | } |
509 | ||
43cb76d9 GKH |
510 | static ssize_t bonding_store_arp_interval(struct device *d, |
511 | struct device_attribute *attr, | |
512 | const char *buf, size_t count) | |
b76cdba9 MW |
513 | { |
514 | int new_value, ret = count; | |
43cb76d9 | 515 | struct bonding *bond = to_bond(d); |
b76cdba9 | 516 | |
fbb0c41b | 517 | if (!rtnl_trylock()) |
518 | return restart_syscall(); | |
b76cdba9 | 519 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 520 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
521 | bond->dev->name); |
522 | ret = -EINVAL; | |
523 | goto out; | |
524 | } | |
525 | if (new_value < 0) { | |
1bc7db16 | 526 | pr_err("%s: Invalid arp_interval value %d not in range 0-%d; rejected.\n", |
b76cdba9 MW |
527 | bond->dev->name, new_value, INT_MAX); |
528 | ret = -EINVAL; | |
529 | goto out; | |
530 | } | |
c5cb002f AG |
531 | if (bond->params.mode == BOND_MODE_ALB || |
532 | bond->params.mode == BOND_MODE_TLB) { | |
533 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", | |
534 | bond->dev->name, bond->dev->name); | |
535 | ret = -EINVAL; | |
536 | goto out; | |
537 | } | |
a4aee5c8 JP |
538 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
539 | bond->dev->name, new_value); | |
b76cdba9 | 540 | bond->params.arp_interval = new_value; |
1bc7db16 | 541 | if (new_value) { |
542 | if (bond->params.miimon) { | |
543 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
544 | bond->dev->name, bond->dev->name); | |
545 | bond->params.miimon = 0; | |
546 | } | |
547 | if (!bond->params.arp_targets[0]) | |
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 | */ | |
1bc7db16 | 557 | if (!new_value) { |
558 | cancel_delayed_work_sync(&bond->arp_work); | |
559 | } else { | |
560 | cancel_delayed_work_sync(&bond->mii_work); | |
561 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
562 | } | |
b76cdba9 | 563 | } |
b76cdba9 | 564 | out: |
fbb0c41b | 565 | rtnl_unlock(); |
b76cdba9 MW |
566 | return ret; |
567 | } | |
3d632c3f SH |
568 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
569 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
570 | |
571 | /* | |
572 | * Show and set the arp targets. | |
573 | */ | |
43cb76d9 GKH |
574 | static ssize_t bonding_show_arp_targets(struct device *d, |
575 | struct device_attribute *attr, | |
576 | char *buf) | |
b76cdba9 MW |
577 | { |
578 | int i, res = 0; | |
43cb76d9 | 579 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
580 | |
581 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
582 | if (bond->params.arp_targets[i]) | |
63779436 HH |
583 | res += sprintf(buf + res, "%pI4 ", |
584 | &bond->params.arp_targets[i]); | |
b76cdba9 | 585 | } |
1dcdcd69 WF |
586 | if (res) |
587 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
588 | return res; |
589 | } | |
590 | ||
43cb76d9 GKH |
591 | static ssize_t bonding_store_arp_targets(struct device *d, |
592 | struct device_attribute *attr, | |
593 | const char *buf, size_t count) | |
b76cdba9 | 594 | { |
d3bb52b0 | 595 | __be32 newtarget; |
b76cdba9 | 596 | int i = 0, done = 0, ret = count; |
43cb76d9 | 597 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 598 | __be32 *targets; |
b76cdba9 MW |
599 | |
600 | targets = bond->params.arp_targets; | |
601 | newtarget = in_aton(buf + 1); | |
602 | /* look for adds */ | |
603 | if (buf[0] == '+') { | |
d3bb52b0 | 604 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 605 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 606 | bond->dev->name, &newtarget); |
b76cdba9 MW |
607 | ret = -EINVAL; |
608 | goto out; | |
609 | } | |
610 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 611 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 612 | if (targets[i] == newtarget) { /* duplicate */ |
a4aee5c8 | 613 | pr_err("%s: ARP target %pI4 is already present\n", |
63779436 | 614 | bond->dev->name, &newtarget); |
b76cdba9 MW |
615 | ret = -EINVAL; |
616 | goto out; | |
617 | } | |
5a31bec0 | 618 | if (targets[i] == 0) { |
a4aee5c8 JP |
619 | pr_info("%s: adding ARP target %pI4.\n", |
620 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
621 | done = 1; |
622 | targets[i] = newtarget; | |
623 | } | |
624 | } | |
625 | if (!done) { | |
a4aee5c8 | 626 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 MW |
627 | bond->dev->name); |
628 | ret = -EINVAL; | |
629 | goto out; | |
630 | } | |
631 | ||
3d632c3f | 632 | } else if (buf[0] == '-') { |
d3bb52b0 | 633 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 634 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 635 | bond->dev->name, &newtarget); |
b76cdba9 MW |
636 | ret = -EINVAL; |
637 | goto out; | |
638 | } | |
639 | ||
5a31bec0 | 640 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 641 | if (targets[i] == newtarget) { |
5a31bec0 | 642 | int j; |
a4aee5c8 JP |
643 | pr_info("%s: removing ARP target %pI4.\n", |
644 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
645 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
646 | targets[j] = targets[j+1]; | |
647 | ||
648 | targets[j] = 0; | |
b76cdba9 MW |
649 | done = 1; |
650 | } | |
651 | } | |
652 | if (!done) { | |
a4aee5c8 JP |
653 | pr_info("%s: unable to remove nonexistent ARP target %pI4.\n", |
654 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
655 | ret = -EINVAL; |
656 | goto out; | |
657 | } | |
3d632c3f | 658 | } else { |
a4aee5c8 JP |
659 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
660 | bond->dev->name); | |
b76cdba9 MW |
661 | ret = -EPERM; |
662 | goto out; | |
663 | } | |
664 | ||
665 | out: | |
666 | return ret; | |
667 | } | |
43cb76d9 | 668 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
669 | |
670 | /* | |
671 | * Show and set the up and down delays. These must be multiples of the | |
672 | * MII monitoring value, and are stored internally as the multiplier. | |
673 | * Thus, we must translate to MS for the real world. | |
674 | */ | |
43cb76d9 GKH |
675 | static ssize_t bonding_show_downdelay(struct device *d, |
676 | struct device_attribute *attr, | |
677 | char *buf) | |
b76cdba9 | 678 | { |
43cb76d9 | 679 | struct bonding *bond = to_bond(d); |
b76cdba9 | 680 | |
7bd46508 | 681 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
682 | } |
683 | ||
43cb76d9 GKH |
684 | static ssize_t bonding_store_downdelay(struct device *d, |
685 | struct device_attribute *attr, | |
686 | const char *buf, size_t count) | |
b76cdba9 MW |
687 | { |
688 | int new_value, ret = count; | |
43cb76d9 | 689 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
690 | |
691 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 692 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
693 | bond->dev->name); |
694 | ret = -EPERM; | |
695 | goto out; | |
696 | } | |
697 | ||
698 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 699 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
700 | ret = -EINVAL; |
701 | goto out; | |
702 | } | |
703 | if (new_value < 0) { | |
a4aee5c8 | 704 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 705 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
706 | ret = -EINVAL; |
707 | goto out; | |
708 | } else { | |
709 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 710 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
711 | bond->dev->name, new_value, |
712 | bond->params.miimon, | |
713 | (new_value / bond->params.miimon) * | |
714 | bond->params.miimon); | |
b76cdba9 MW |
715 | } |
716 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
717 | pr_info("%s: Setting down delay to %d.\n", |
718 | bond->dev->name, | |
719 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
720 | |
721 | } | |
722 | ||
723 | out: | |
724 | return ret; | |
725 | } | |
3d632c3f SH |
726 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
727 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 728 | |
43cb76d9 GKH |
729 | static ssize_t bonding_show_updelay(struct device *d, |
730 | struct device_attribute *attr, | |
731 | char *buf) | |
b76cdba9 | 732 | { |
43cb76d9 | 733 | struct bonding *bond = to_bond(d); |
b76cdba9 | 734 | |
7bd46508 | 735 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
736 | |
737 | } | |
738 | ||
43cb76d9 GKH |
739 | static ssize_t bonding_store_updelay(struct device *d, |
740 | struct device_attribute *attr, | |
741 | const char *buf, size_t count) | |
b76cdba9 MW |
742 | { |
743 | int new_value, ret = count; | |
43cb76d9 | 744 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
745 | |
746 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 747 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
748 | bond->dev->name); |
749 | ret = -EPERM; | |
750 | goto out; | |
751 | } | |
752 | ||
753 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 754 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
755 | bond->dev->name); |
756 | ret = -EINVAL; | |
757 | goto out; | |
758 | } | |
759 | if (new_value < 0) { | |
1bc7db16 | 760 | pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n", |
761 | bond->dev->name, new_value, 0, INT_MAX); | |
b76cdba9 MW |
762 | ret = -EINVAL; |
763 | goto out; | |
764 | } else { | |
765 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 766 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
767 | bond->dev->name, new_value, |
768 | bond->params.miimon, | |
769 | (new_value / bond->params.miimon) * | |
770 | bond->params.miimon); | |
b76cdba9 MW |
771 | } |
772 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
773 | pr_info("%s: Setting up delay to %d.\n", |
774 | bond->dev->name, | |
775 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
776 | } |
777 | ||
778 | out: | |
779 | return ret; | |
780 | } | |
3d632c3f SH |
781 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
782 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
783 | |
784 | /* | |
785 | * Show and set the LACP interval. Interface must be down, and the mode | |
786 | * must be set to 802.3ad mode. | |
787 | */ | |
43cb76d9 GKH |
788 | static ssize_t bonding_show_lacp(struct device *d, |
789 | struct device_attribute *attr, | |
790 | char *buf) | |
b76cdba9 | 791 | { |
43cb76d9 | 792 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
793 | |
794 | return sprintf(buf, "%s %d\n", | |
795 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 796 | bond->params.lacp_fast); |
b76cdba9 MW |
797 | } |
798 | ||
43cb76d9 GKH |
799 | static ssize_t bonding_store_lacp(struct device *d, |
800 | struct device_attribute *attr, | |
801 | const char *buf, size_t count) | |
b76cdba9 MW |
802 | { |
803 | int new_value, ret = count; | |
43cb76d9 | 804 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
805 | |
806 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 807 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
808 | bond->dev->name); |
809 | ret = -EPERM; | |
810 | goto out; | |
811 | } | |
812 | ||
813 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 814 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
815 | bond->dev->name); |
816 | ret = -EPERM; | |
817 | goto out; | |
818 | } | |
819 | ||
ece95f7f | 820 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
821 | |
822 | if ((new_value == 1) || (new_value == 0)) { | |
823 | bond->params.lacp_fast = new_value; | |
ba824a8b | 824 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 825 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
826 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
827 | new_value); | |
b76cdba9 | 828 | } else { |
a4aee5c8 | 829 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 830 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
831 | ret = -EINVAL; |
832 | } | |
833 | out: | |
834 | return ret; | |
835 | } | |
3d632c3f SH |
836 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
837 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 838 | |
655f8919 | 839 | static ssize_t bonding_show_min_links(struct device *d, |
840 | struct device_attribute *attr, | |
841 | char *buf) | |
842 | { | |
843 | struct bonding *bond = to_bond(d); | |
844 | ||
845 | return sprintf(buf, "%d\n", bond->params.min_links); | |
846 | } | |
847 | ||
848 | static ssize_t bonding_store_min_links(struct device *d, | |
849 | struct device_attribute *attr, | |
850 | const char *buf, size_t count) | |
851 | { | |
852 | struct bonding *bond = to_bond(d); | |
853 | int ret; | |
854 | unsigned int new_value; | |
855 | ||
856 | ret = kstrtouint(buf, 0, &new_value); | |
857 | if (ret < 0) { | |
858 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
859 | bond->dev->name, buf); | |
860 | return ret; | |
861 | } | |
862 | ||
863 | pr_info("%s: Setting min links value to %u\n", | |
864 | bond->dev->name, new_value); | |
865 | bond->params.min_links = new_value; | |
866 | return count; | |
867 | } | |
868 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
869 | bonding_show_min_links, bonding_store_min_links); | |
870 | ||
fd989c83 JV |
871 | static ssize_t bonding_show_ad_select(struct device *d, |
872 | struct device_attribute *attr, | |
873 | char *buf) | |
874 | { | |
875 | struct bonding *bond = to_bond(d); | |
876 | ||
877 | return sprintf(buf, "%s %d\n", | |
878 | ad_select_tbl[bond->params.ad_select].modename, | |
879 | bond->params.ad_select); | |
880 | } | |
881 | ||
882 | ||
883 | static ssize_t bonding_store_ad_select(struct device *d, | |
884 | struct device_attribute *attr, | |
885 | const char *buf, size_t count) | |
886 | { | |
887 | int new_value, ret = count; | |
888 | struct bonding *bond = to_bond(d); | |
889 | ||
890 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
891 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
892 | bond->dev->name); | |
fd989c83 JV |
893 | ret = -EPERM; |
894 | goto out; | |
895 | } | |
896 | ||
897 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
898 | ||
899 | if (new_value != -1) { | |
900 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
901 | pr_info("%s: Setting ad_select to %s (%d).\n", |
902 | bond->dev->name, ad_select_tbl[new_value].modename, | |
903 | new_value); | |
fd989c83 | 904 | } else { |
a4aee5c8 | 905 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
906 | bond->dev->name, (int)strlen(buf) - 1, buf); |
907 | ret = -EINVAL; | |
908 | } | |
909 | out: | |
910 | return ret; | |
911 | } | |
3d632c3f SH |
912 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
913 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 914 | |
ad246c99 BH |
915 | /* |
916 | * Show and set the number of peer notifications to send after a failover event. | |
917 | */ | |
918 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
919 | struct device_attribute *attr, | |
920 | char *buf) | |
921 | { | |
922 | struct bonding *bond = to_bond(d); | |
923 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
924 | } | |
925 | ||
926 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
927 | struct device_attribute *attr, | |
928 | const char *buf, size_t count) | |
929 | { | |
930 | struct bonding *bond = to_bond(d); | |
931 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
932 | return err ? err : count; | |
933 | } | |
934 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
935 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
936 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
937 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
938 | ||
b76cdba9 MW |
939 | /* |
940 | * Show and set the MII monitor interval. There are two tricky bits | |
941 | * here. First, if MII monitoring is activated, then we must disable | |
942 | * ARP monitoring. Second, if the timer isn't running, we must | |
943 | * start it. | |
944 | */ | |
43cb76d9 GKH |
945 | static ssize_t bonding_show_miimon(struct device *d, |
946 | struct device_attribute *attr, | |
947 | char *buf) | |
b76cdba9 | 948 | { |
43cb76d9 | 949 | struct bonding *bond = to_bond(d); |
b76cdba9 | 950 | |
7bd46508 | 951 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
952 | } |
953 | ||
43cb76d9 GKH |
954 | static ssize_t bonding_store_miimon(struct device *d, |
955 | struct device_attribute *attr, | |
956 | const char *buf, size_t count) | |
b76cdba9 MW |
957 | { |
958 | int new_value, ret = count; | |
43cb76d9 | 959 | struct bonding *bond = to_bond(d); |
b76cdba9 | 960 | |
fbb0c41b | 961 | if (!rtnl_trylock()) |
962 | return restart_syscall(); | |
b76cdba9 | 963 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 964 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
965 | bond->dev->name); |
966 | ret = -EINVAL; | |
967 | goto out; | |
968 | } | |
969 | if (new_value < 0) { | |
a4aee5c8 | 970 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 971 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
972 | ret = -EINVAL; |
973 | goto out; | |
1bc7db16 | 974 | } |
975 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
976 | bond->dev->name, new_value); | |
977 | bond->params.miimon = new_value; | |
978 | if (bond->params.updelay) | |
979 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
980 | bond->dev->name, | |
981 | bond->params.updelay * bond->params.miimon); | |
982 | if (bond->params.downdelay) | |
983 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
984 | bond->dev->name, | |
985 | bond->params.downdelay * bond->params.miimon); | |
986 | if (new_value && bond->params.arp_interval) { | |
987 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", | |
988 | bond->dev->name); | |
989 | bond->params.arp_interval = 0; | |
990 | if (bond->params.arp_validate) | |
991 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
992 | } | |
993 | if (bond->dev->flags & IFF_UP) { | |
994 | /* If the interface is up, we may need to fire off | |
995 | * the MII timer. If the interface is down, the | |
996 | * timer will get fired off when the open function | |
997 | * is called. | |
998 | */ | |
999 | if (!new_value) { | |
1000 | cancel_delayed_work_sync(&bond->mii_work); | |
1001 | } else { | |
fbb0c41b | 1002 | cancel_delayed_work_sync(&bond->arp_work); |
1003 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
b76cdba9 MW |
1004 | } |
1005 | } | |
1006 | out: | |
fbb0c41b | 1007 | rtnl_unlock(); |
b76cdba9 MW |
1008 | return ret; |
1009 | } | |
3d632c3f SH |
1010 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1011 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1012 | |
1013 | /* | |
1014 | * Show and set the primary slave. The store function is much | |
1015 | * simpler than bonding_store_slaves function because it only needs to | |
1016 | * handle one interface name. | |
1017 | * The bond must be a mode that supports a primary for this be | |
1018 | * set. | |
1019 | */ | |
43cb76d9 GKH |
1020 | static ssize_t bonding_show_primary(struct device *d, |
1021 | struct device_attribute *attr, | |
1022 | char *buf) | |
b76cdba9 MW |
1023 | { |
1024 | int count = 0; | |
43cb76d9 | 1025 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1026 | |
1027 | if (bond->primary_slave) | |
7bd46508 | 1028 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1029 | |
1030 | return count; | |
1031 | } | |
1032 | ||
43cb76d9 GKH |
1033 | static ssize_t bonding_store_primary(struct device *d, |
1034 | struct device_attribute *attr, | |
1035 | const char *buf, size_t count) | |
b76cdba9 MW |
1036 | { |
1037 | int i; | |
1038 | struct slave *slave; | |
43cb76d9 | 1039 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1040 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1041 | |
496a60cd EB |
1042 | if (!rtnl_trylock()) |
1043 | return restart_syscall(); | |
e843fa50 | 1044 | block_netpoll_tx(); |
e934dd78 JV |
1045 | read_lock(&bond->lock); |
1046 | write_lock_bh(&bond->curr_slave_lock); | |
1047 | ||
b76cdba9 | 1048 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1049 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1050 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1051 | goto out; |
1052 | } | |
b76cdba9 | 1053 | |
eb6e98a1 | 1054 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1055 | |
f4bb2e9c AG |
1056 | /* check to see if we are clearing primary */ |
1057 | if (!strlen(ifname) || buf[0] == '\n') { | |
1058 | pr_info("%s: Setting primary slave to None.\n", | |
1059 | bond->dev->name); | |
1060 | bond->primary_slave = NULL; | |
eb492f74 | 1061 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
f4bb2e9c AG |
1062 | bond_select_active_slave(bond); |
1063 | goto out; | |
1064 | } | |
1065 | ||
1066 | bond_for_each_slave(bond, slave, i) { | |
1067 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
1068 | pr_info("%s: Setting %s as primary slave.\n", | |
1069 | bond->dev->name, slave->dev->name); | |
1070 | bond->primary_slave = slave; | |
1071 | strcpy(bond->params.primary, slave->dev->name); | |
1072 | bond_select_active_slave(bond); | |
1073 | goto out; | |
b76cdba9 MW |
1074 | } |
1075 | } | |
f4bb2e9c | 1076 | |
8a93664d WP |
1077 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1078 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1079 | ||
1080 | pr_info("%s: Recording %s as primary, " | |
1081 | "but it has not been enslaved to %s yet.\n", | |
1082 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1083 | out: |
e934dd78 JV |
1084 | write_unlock_bh(&bond->curr_slave_lock); |
1085 | read_unlock(&bond->lock); | |
e843fa50 | 1086 | unblock_netpoll_tx(); |
6603a6f2 JV |
1087 | rtnl_unlock(); |
1088 | ||
b76cdba9 MW |
1089 | return count; |
1090 | } | |
3d632c3f SH |
1091 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1092 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1093 | |
a549952a JP |
1094 | /* |
1095 | * Show and set the primary_reselect flag. | |
1096 | */ | |
1097 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1098 | struct device_attribute *attr, | |
1099 | char *buf) | |
1100 | { | |
1101 | struct bonding *bond = to_bond(d); | |
1102 | ||
1103 | return sprintf(buf, "%s %d\n", | |
1104 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1105 | bond->params.primary_reselect); | |
1106 | } | |
1107 | ||
1108 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1109 | struct device_attribute *attr, | |
1110 | const char *buf, size_t count) | |
1111 | { | |
1112 | int new_value, ret = count; | |
1113 | struct bonding *bond = to_bond(d); | |
1114 | ||
1115 | if (!rtnl_trylock()) | |
1116 | return restart_syscall(); | |
1117 | ||
1118 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1119 | if (new_value < 0) { | |
a4aee5c8 | 1120 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1121 | bond->dev->name, |
1122 | (int) strlen(buf) - 1, buf); | |
1123 | ret = -EINVAL; | |
1124 | goto out; | |
1125 | } | |
1126 | ||
1127 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1128 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1129 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1130 | new_value); | |
1131 | ||
e843fa50 | 1132 | block_netpoll_tx(); |
a549952a JP |
1133 | read_lock(&bond->lock); |
1134 | write_lock_bh(&bond->curr_slave_lock); | |
1135 | bond_select_active_slave(bond); | |
1136 | write_unlock_bh(&bond->curr_slave_lock); | |
1137 | read_unlock(&bond->lock); | |
e843fa50 | 1138 | unblock_netpoll_tx(); |
a549952a JP |
1139 | out: |
1140 | rtnl_unlock(); | |
1141 | return ret; | |
1142 | } | |
1143 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1144 | bonding_show_primary_reselect, | |
1145 | bonding_store_primary_reselect); | |
1146 | ||
b76cdba9 MW |
1147 | /* |
1148 | * Show and set the use_carrier flag. | |
1149 | */ | |
43cb76d9 GKH |
1150 | static ssize_t bonding_show_carrier(struct device *d, |
1151 | struct device_attribute *attr, | |
1152 | char *buf) | |
b76cdba9 | 1153 | { |
43cb76d9 | 1154 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1155 | |
7bd46508 | 1156 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1157 | } |
1158 | ||
43cb76d9 GKH |
1159 | static ssize_t bonding_store_carrier(struct device *d, |
1160 | struct device_attribute *attr, | |
1161 | const char *buf, size_t count) | |
b76cdba9 MW |
1162 | { |
1163 | int new_value, ret = count; | |
43cb76d9 | 1164 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1165 | |
1166 | ||
1167 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1168 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1169 | bond->dev->name); |
1170 | ret = -EINVAL; | |
1171 | goto out; | |
1172 | } | |
1173 | if ((new_value == 0) || (new_value == 1)) { | |
1174 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1175 | pr_info("%s: Setting use_carrier to %d.\n", |
1176 | bond->dev->name, new_value); | |
b76cdba9 | 1177 | } else { |
a4aee5c8 JP |
1178 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1179 | bond->dev->name, new_value); | |
b76cdba9 MW |
1180 | } |
1181 | out: | |
672bda33 | 1182 | return ret; |
b76cdba9 | 1183 | } |
3d632c3f SH |
1184 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1185 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1186 | |
1187 | ||
1188 | /* | |
1189 | * Show and set currently active_slave. | |
1190 | */ | |
43cb76d9 GKH |
1191 | static ssize_t bonding_show_active_slave(struct device *d, |
1192 | struct device_attribute *attr, | |
1193 | char *buf) | |
b76cdba9 MW |
1194 | { |
1195 | struct slave *curr; | |
43cb76d9 | 1196 | struct bonding *bond = to_bond(d); |
16cd0160 | 1197 | int count = 0; |
b76cdba9 | 1198 | |
b76cdba9 MW |
1199 | read_lock(&bond->curr_slave_lock); |
1200 | curr = bond->curr_active_slave; | |
1201 | read_unlock(&bond->curr_slave_lock); | |
1202 | ||
1203 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1204 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1205 | return count; |
1206 | } | |
1207 | ||
43cb76d9 GKH |
1208 | static ssize_t bonding_store_active_slave(struct device *d, |
1209 | struct device_attribute *attr, | |
1210 | const char *buf, size_t count) | |
b76cdba9 MW |
1211 | { |
1212 | int i; | |
1213 | struct slave *slave; | |
3d632c3f SH |
1214 | struct slave *old_active = NULL; |
1215 | struct slave *new_active = NULL; | |
43cb76d9 | 1216 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1217 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1218 | |
496a60cd EB |
1219 | if (!rtnl_trylock()) |
1220 | return restart_syscall(); | |
e843fa50 NH |
1221 | |
1222 | block_netpoll_tx(); | |
e934dd78 JV |
1223 | read_lock(&bond->lock); |
1224 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1225 | |
f4bb2e9c | 1226 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 | 1227 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f | 1228 | bond->dev->name, bond->dev->name, bond->params.mode); |
f4bb2e9c AG |
1229 | goto out; |
1230 | } | |
1231 | ||
c84e1590 | 1232 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c AG |
1233 | |
1234 | /* check to see if we are clearing active */ | |
1235 | if (!strlen(ifname) || buf[0] == '\n') { | |
1236 | pr_info("%s: Clearing current active slave.\n", | |
1237 | bond->dev->name); | |
1238 | bond->curr_active_slave = NULL; | |
1239 | bond_select_active_slave(bond); | |
1240 | goto out; | |
1241 | } | |
1242 | ||
1243 | bond_for_each_slave(bond, slave, i) { | |
1244 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
1245 | old_active = bond->curr_active_slave; | |
1246 | new_active = slave; | |
1247 | if (new_active == old_active) { | |
1248 | /* do nothing */ | |
1249 | pr_info("%s: %s is already the current" | |
1250 | " active slave.\n", | |
1251 | bond->dev->name, | |
1252 | slave->dev->name); | |
1253 | goto out; | |
1254 | } | |
1255 | else { | |
1256 | if ((new_active) && | |
1257 | (old_active) && | |
1258 | (new_active->link == BOND_LINK_UP) && | |
1259 | IS_UP(new_active->dev)) { | |
1260 | pr_info("%s: Setting %s as active" | |
1261 | " slave.\n", | |
a4aee5c8 JP |
1262 | bond->dev->name, |
1263 | slave->dev->name); | |
f4bb2e9c AG |
1264 | bond_change_active_slave(bond, |
1265 | new_active); | |
b76cdba9 MW |
1266 | } |
1267 | else { | |
f4bb2e9c AG |
1268 | pr_info("%s: Could not set %s as" |
1269 | " active slave; either %s is" | |
1270 | " down or the link is down.\n", | |
1271 | bond->dev->name, | |
1272 | slave->dev->name, | |
1273 | slave->dev->name); | |
b76cdba9 | 1274 | } |
f4bb2e9c | 1275 | goto out; |
b76cdba9 MW |
1276 | } |
1277 | } | |
b76cdba9 | 1278 | } |
f4bb2e9c AG |
1279 | |
1280 | pr_info("%s: Unable to set %.*s as active slave.\n", | |
1281 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
3d632c3f | 1282 | out: |
e934dd78 JV |
1283 | write_unlock_bh(&bond->curr_slave_lock); |
1284 | read_unlock(&bond->lock); | |
e843fa50 NH |
1285 | unblock_netpoll_tx(); |
1286 | ||
6603a6f2 JV |
1287 | rtnl_unlock(); |
1288 | ||
b76cdba9 MW |
1289 | return count; |
1290 | ||
1291 | } | |
3d632c3f SH |
1292 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1293 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1294 | |
1295 | ||
1296 | /* | |
1297 | * Show link status of the bond interface. | |
1298 | */ | |
43cb76d9 GKH |
1299 | static ssize_t bonding_show_mii_status(struct device *d, |
1300 | struct device_attribute *attr, | |
1301 | char *buf) | |
b76cdba9 MW |
1302 | { |
1303 | struct slave *curr; | |
43cb76d9 | 1304 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1305 | |
1306 | read_lock(&bond->curr_slave_lock); | |
1307 | curr = bond->curr_active_slave; | |
1308 | read_unlock(&bond->curr_slave_lock); | |
1309 | ||
3d632c3f | 1310 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1311 | } |
43cb76d9 | 1312 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1313 | |
b76cdba9 MW |
1314 | /* |
1315 | * Show current 802.3ad aggregator ID. | |
1316 | */ | |
43cb76d9 GKH |
1317 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1318 | struct device_attribute *attr, | |
1319 | char *buf) | |
b76cdba9 MW |
1320 | { |
1321 | int count = 0; | |
43cb76d9 | 1322 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1323 | |
1324 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1325 | struct ad_info ad_info; | |
3d632c3f | 1326 | count = sprintf(buf, "%d\n", |
318debd8 | 1327 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1328 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1329 | } |
b76cdba9 MW |
1330 | |
1331 | return count; | |
1332 | } | |
43cb76d9 | 1333 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1334 | |
1335 | ||
1336 | /* | |
1337 | * Show number of active 802.3ad ports. | |
1338 | */ | |
43cb76d9 GKH |
1339 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1340 | struct device_attribute *attr, | |
1341 | char *buf) | |
b76cdba9 MW |
1342 | { |
1343 | int count = 0; | |
43cb76d9 | 1344 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1345 | |
1346 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1347 | struct ad_info ad_info; | |
3d632c3f | 1348 | count = sprintf(buf, "%d\n", |
318debd8 | 1349 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1350 | ? 0 : ad_info.ports); |
b76cdba9 | 1351 | } |
b76cdba9 MW |
1352 | |
1353 | return count; | |
1354 | } | |
43cb76d9 | 1355 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1356 | |
1357 | ||
1358 | /* | |
1359 | * Show current 802.3ad actor key. | |
1360 | */ | |
43cb76d9 GKH |
1361 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1362 | struct device_attribute *attr, | |
1363 | char *buf) | |
b76cdba9 MW |
1364 | { |
1365 | int count = 0; | |
43cb76d9 | 1366 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1367 | |
1368 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1369 | struct ad_info ad_info; | |
3d632c3f | 1370 | count = sprintf(buf, "%d\n", |
318debd8 | 1371 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1372 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1373 | } |
b76cdba9 MW |
1374 | |
1375 | return count; | |
1376 | } | |
43cb76d9 | 1377 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1378 | |
1379 | ||
1380 | /* | |
1381 | * Show current 802.3ad partner key. | |
1382 | */ | |
43cb76d9 GKH |
1383 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1384 | struct device_attribute *attr, | |
1385 | char *buf) | |
b76cdba9 MW |
1386 | { |
1387 | int count = 0; | |
43cb76d9 | 1388 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1389 | |
1390 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1391 | struct ad_info ad_info; | |
3d632c3f | 1392 | count = sprintf(buf, "%d\n", |
318debd8 | 1393 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1394 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1395 | } |
b76cdba9 MW |
1396 | |
1397 | return count; | |
1398 | } | |
43cb76d9 | 1399 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1400 | |
1401 | ||
1402 | /* | |
1403 | * Show current 802.3ad partner mac. | |
1404 | */ | |
43cb76d9 GKH |
1405 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1406 | struct device_attribute *attr, | |
1407 | char *buf) | |
b76cdba9 MW |
1408 | { |
1409 | int count = 0; | |
43cb76d9 | 1410 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1411 | |
1412 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1413 | struct ad_info ad_info; | |
3d632c3f | 1414 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1415 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1416 | } |
b76cdba9 MW |
1417 | |
1418 | return count; | |
1419 | } | |
43cb76d9 | 1420 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1421 | |
bb1d9123 AG |
1422 | /* |
1423 | * Show the queue_ids of the slaves in the current bond. | |
1424 | */ | |
1425 | static ssize_t bonding_show_queue_id(struct device *d, | |
1426 | struct device_attribute *attr, | |
1427 | char *buf) | |
1428 | { | |
1429 | struct slave *slave; | |
1430 | int i, res = 0; | |
1431 | struct bonding *bond = to_bond(d); | |
1432 | ||
1433 | if (!rtnl_trylock()) | |
1434 | return restart_syscall(); | |
1435 | ||
1436 | read_lock(&bond->lock); | |
1437 | bond_for_each_slave(bond, slave, i) { | |
79236680 NP |
1438 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1439 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1440 | if ((PAGE_SIZE - res) > 10) |
1441 | res = PAGE_SIZE - 10; | |
1442 | res += sprintf(buf + res, "++more++ "); | |
1443 | break; | |
1444 | } | |
1445 | res += sprintf(buf + res, "%s:%d ", | |
1446 | slave->dev->name, slave->queue_id); | |
1447 | } | |
1448 | read_unlock(&bond->lock); | |
1449 | if (res) | |
1450 | buf[res-1] = '\n'; /* eat the leftover space */ | |
1451 | rtnl_unlock(); | |
1452 | return res; | |
1453 | } | |
1454 | ||
1455 | /* | |
1456 | * Set the queue_ids of the slaves in the current bond. The bond | |
1457 | * interface must be enslaved for this to work. | |
1458 | */ | |
1459 | static ssize_t bonding_store_queue_id(struct device *d, | |
1460 | struct device_attribute *attr, | |
1461 | const char *buffer, size_t count) | |
1462 | { | |
1463 | struct slave *slave, *update_slave; | |
1464 | struct bonding *bond = to_bond(d); | |
1465 | u16 qid; | |
1466 | int i, ret = count; | |
1467 | char *delim; | |
1468 | struct net_device *sdev = NULL; | |
1469 | ||
1470 | if (!rtnl_trylock()) | |
1471 | return restart_syscall(); | |
1472 | ||
1473 | /* delim will point to queue id if successful */ | |
1474 | delim = strchr(buffer, ':'); | |
1475 | if (!delim) | |
1476 | goto err_no_cmd; | |
1477 | ||
1478 | /* | |
1479 | * Terminate string that points to device name and bump it | |
1480 | * up one, so we can read the queue id there. | |
1481 | */ | |
1482 | *delim = '\0'; | |
1483 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1484 | goto err_no_cmd; | |
1485 | ||
1486 | /* Check buffer length, valid ifname and queue id */ | |
1487 | if (strlen(buffer) > IFNAMSIZ || | |
1488 | !dev_valid_name(buffer) || | |
8a540ff9 | 1489 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1490 | goto err_no_cmd; |
1491 | ||
1492 | /* Get the pointer to that interface if it exists */ | |
1493 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1494 | if (!sdev) | |
1495 | goto err_no_cmd; | |
1496 | ||
1497 | read_lock(&bond->lock); | |
1498 | ||
1499 | /* Search for thes slave and check for duplicate qids */ | |
1500 | update_slave = NULL; | |
1501 | bond_for_each_slave(bond, slave, i) { | |
1502 | if (sdev == slave->dev) | |
1503 | /* | |
1504 | * We don't need to check the matching | |
1505 | * slave for dups, since we're overwriting it | |
1506 | */ | |
1507 | update_slave = slave; | |
1508 | else if (qid && qid == slave->queue_id) { | |
1509 | goto err_no_cmd_unlock; | |
1510 | } | |
1511 | } | |
1512 | ||
1513 | if (!update_slave) | |
1514 | goto err_no_cmd_unlock; | |
1515 | ||
1516 | /* Actually set the qids for the slave */ | |
1517 | update_slave->queue_id = qid; | |
1518 | ||
1519 | read_unlock(&bond->lock); | |
1520 | out: | |
1521 | rtnl_unlock(); | |
1522 | return ret; | |
1523 | ||
1524 | err_no_cmd_unlock: | |
1525 | read_unlock(&bond->lock); | |
1526 | err_no_cmd: | |
1527 | pr_info("invalid input for queue_id set for %s.\n", | |
1528 | bond->dev->name); | |
1529 | ret = -EPERM; | |
1530 | goto out; | |
1531 | } | |
1532 | ||
1533 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1534 | bonding_store_queue_id); | |
1535 | ||
1536 | ||
ebd8e497 AG |
1537 | /* |
1538 | * Show and set the all_slaves_active flag. | |
1539 | */ | |
1540 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1541 | struct device_attribute *attr, | |
1542 | char *buf) | |
1543 | { | |
1544 | struct bonding *bond = to_bond(d); | |
1545 | ||
1546 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1547 | } | |
1548 | ||
1549 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1550 | struct device_attribute *attr, | |
1551 | const char *buf, size_t count) | |
1552 | { | |
1553 | int i, new_value, ret = count; | |
1554 | struct bonding *bond = to_bond(d); | |
1555 | struct slave *slave; | |
1556 | ||
1557 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1558 | pr_err("%s: no all_slaves_active value specified.\n", | |
1559 | bond->dev->name); | |
1560 | ret = -EINVAL; | |
1561 | goto out; | |
1562 | } | |
1563 | ||
1564 | if (new_value == bond->params.all_slaves_active) | |
1565 | goto out; | |
1566 | ||
1567 | if ((new_value == 0) || (new_value == 1)) { | |
1568 | bond->params.all_slaves_active = new_value; | |
1569 | } else { | |
1570 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1571 | bond->dev->name, new_value); | |
1572 | ret = -EINVAL; | |
1573 | goto out; | |
1574 | } | |
b76cdba9 | 1575 | |
e196c0e5 | 1576 | read_lock(&bond->lock); |
ebd8e497 | 1577 | bond_for_each_slave(bond, slave, i) { |
e30bc066 | 1578 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1579 | if (new_value) |
2d7011ca | 1580 | slave->inactive = 0; |
ebd8e497 | 1581 | else |
2d7011ca | 1582 | slave->inactive = 1; |
ebd8e497 AG |
1583 | } |
1584 | } | |
e196c0e5 | 1585 | read_unlock(&bond->lock); |
ebd8e497 | 1586 | out: |
672bda33 | 1587 | return ret; |
ebd8e497 AG |
1588 | } |
1589 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1590 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1591 | |
c2952c31 FL |
1592 | /* |
1593 | * Show and set the number of IGMP membership reports to send on link failure | |
1594 | */ | |
1595 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1596 | struct device_attribute *attr, |
1597 | char *buf) | |
c2952c31 FL |
1598 | { |
1599 | struct bonding *bond = to_bond(d); | |
1600 | ||
1601 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1602 | } | |
1603 | ||
1604 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1605 | struct device_attribute *attr, |
1606 | const char *buf, size_t count) | |
c2952c31 FL |
1607 | { |
1608 | int new_value, ret = count; | |
1609 | struct bonding *bond = to_bond(d); | |
1610 | ||
1611 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1612 | pr_err("%s: no resend_igmp value specified.\n", | |
1613 | bond->dev->name); | |
1614 | ret = -EINVAL; | |
1615 | goto out; | |
1616 | } | |
1617 | ||
94265cf5 | 1618 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1619 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1620 | bond->dev->name, new_value); | |
1621 | ret = -EINVAL; | |
1622 | goto out; | |
1623 | } | |
1624 | ||
1625 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1626 | bond->dev->name, new_value); | |
1627 | bond->params.resend_igmp = new_value; | |
1628 | out: | |
1629 | return ret; | |
1630 | } | |
1631 | ||
1632 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1633 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1634 | ||
b76cdba9 | 1635 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1636 | &dev_attr_slaves.attr, |
1637 | &dev_attr_mode.attr, | |
dd957c57 | 1638 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1639 | &dev_attr_arp_validate.attr, |
1640 | &dev_attr_arp_interval.attr, | |
1641 | &dev_attr_arp_ip_target.attr, | |
1642 | &dev_attr_downdelay.attr, | |
1643 | &dev_attr_updelay.attr, | |
1644 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1645 | &dev_attr_ad_select.attr, |
43cb76d9 | 1646 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1647 | &dev_attr_num_grat_arp.attr, |
1648 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1649 | &dev_attr_miimon.attr, |
1650 | &dev_attr_primary.attr, | |
a549952a | 1651 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1652 | &dev_attr_use_carrier.attr, |
1653 | &dev_attr_active_slave.attr, | |
1654 | &dev_attr_mii_status.attr, | |
1655 | &dev_attr_ad_aggregator.attr, | |
1656 | &dev_attr_ad_num_ports.attr, | |
1657 | &dev_attr_ad_actor_key.attr, | |
1658 | &dev_attr_ad_partner_key.attr, | |
1659 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1660 | &dev_attr_queue_id.attr, |
ebd8e497 | 1661 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1662 | &dev_attr_resend_igmp.attr, |
655f8919 | 1663 | &dev_attr_min_links.attr, |
b76cdba9 MW |
1664 | NULL, |
1665 | }; | |
1666 | ||
1667 | static struct attribute_group bonding_group = { | |
1668 | .name = "bonding", | |
1669 | .attrs = per_bond_attrs, | |
1670 | }; | |
1671 | ||
1672 | /* | |
1673 | * Initialize sysfs. This sets up the bonding_masters file in | |
1674 | * /sys/class/net. | |
1675 | */ | |
4c22400a | 1676 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1677 | { |
b8a9787e | 1678 | int ret; |
b76cdba9 | 1679 | |
4c22400a | 1680 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1681 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a EB |
1682 | |
1683 | ret = netdev_class_create_file(&bn->class_attr_bonding_masters); | |
877cbd36 JV |
1684 | /* |
1685 | * Permit multiple loads of the module by ignoring failures to | |
1686 | * create the bonding_masters sysfs file. Bonding devices | |
1687 | * created by second or subsequent loads of the module will | |
1688 | * not be listed in, or controllable by, bonding_masters, but | |
1689 | * will have the usual "bonding" sysfs directory. | |
1690 | * | |
1691 | * This is done to preserve backwards compatibility for | |
1692 | * initscripts/sysconfig, which load bonding multiple times to | |
1693 | * configure multiple bonding devices. | |
1694 | */ | |
1695 | if (ret == -EEXIST) { | |
38d2f38b | 1696 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1697 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1698 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1699 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1700 | class_attr_bonding_masters.attr.name); |
130aa61a | 1701 | ret = 0; |
877cbd36 | 1702 | } |
b76cdba9 MW |
1703 | |
1704 | return ret; | |
1705 | ||
1706 | } | |
1707 | ||
1708 | /* | |
1709 | * Remove /sys/class/net/bonding_masters. | |
1710 | */ | |
4c22400a | 1711 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1712 | { |
4c22400a | 1713 | netdev_class_remove_file(&bn->class_attr_bonding_masters); |
b76cdba9 MW |
1714 | } |
1715 | ||
1716 | /* | |
1717 | * Initialize sysfs for each bond. This sets up and registers | |
1718 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1719 | */ | |
6151b3d4 | 1720 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1721 | { |
6151b3d4 | 1722 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1723 | } |
1724 |