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 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 | 515 | |
fbb0c41b | 516 | if (!rtnl_trylock()) |
517 | return restart_syscall(); | |
b76cdba9 | 518 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 519 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
520 | bond->dev->name); |
521 | ret = -EINVAL; | |
522 | goto out; | |
523 | } | |
524 | if (new_value < 0) { | |
a4aee5c8 | 525 | pr_err("%s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", |
b76cdba9 MW |
526 | bond->dev->name, new_value, INT_MAX); |
527 | ret = -EINVAL; | |
528 | goto out; | |
529 | } | |
c5cb002f AG |
530 | if (bond->params.mode == BOND_MODE_ALB || |
531 | bond->params.mode == BOND_MODE_TLB) { | |
532 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", | |
533 | bond->dev->name, bond->dev->name); | |
534 | ret = -EINVAL; | |
535 | goto out; | |
536 | } | |
a4aee5c8 JP |
537 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
538 | bond->dev->name, new_value); | |
b76cdba9 MW |
539 | bond->params.arp_interval = new_value; |
540 | if (bond->params.miimon) { | |
a4aee5c8 JP |
541 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", |
542 | bond->dev->name, bond->dev->name); | |
b76cdba9 | 543 | bond->params.miimon = 0; |
b76cdba9 MW |
544 | } |
545 | if (!bond->params.arp_targets[0]) { | |
a4aee5c8 JP |
546 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", |
547 | bond->dev->name); | |
b76cdba9 MW |
548 | } |
549 | if (bond->dev->flags & IFF_UP) { | |
550 | /* If the interface is up, we may need to fire off | |
551 | * the ARP timer. If the interface is down, the | |
552 | * timer will get fired off when the open function | |
553 | * is called. | |
554 | */ | |
fbb0c41b | 555 | cancel_delayed_work_sync(&bond->mii_work); |
556 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
b76cdba9 MW |
557 | } |
558 | ||
559 | out: | |
fbb0c41b | 560 | rtnl_unlock(); |
b76cdba9 MW |
561 | return ret; |
562 | } | |
3d632c3f SH |
563 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
564 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
565 | |
566 | /* | |
567 | * Show and set the arp targets. | |
568 | */ | |
43cb76d9 GKH |
569 | static ssize_t bonding_show_arp_targets(struct device *d, |
570 | struct device_attribute *attr, | |
571 | char *buf) | |
b76cdba9 MW |
572 | { |
573 | int i, res = 0; | |
43cb76d9 | 574 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
575 | |
576 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
577 | if (bond->params.arp_targets[i]) | |
63779436 HH |
578 | res += sprintf(buf + res, "%pI4 ", |
579 | &bond->params.arp_targets[i]); | |
b76cdba9 | 580 | } |
1dcdcd69 WF |
581 | if (res) |
582 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
583 | return res; |
584 | } | |
585 | ||
43cb76d9 GKH |
586 | static ssize_t bonding_store_arp_targets(struct device *d, |
587 | struct device_attribute *attr, | |
588 | const char *buf, size_t count) | |
b76cdba9 | 589 | { |
d3bb52b0 | 590 | __be32 newtarget; |
b76cdba9 | 591 | int i = 0, done = 0, ret = count; |
43cb76d9 | 592 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 593 | __be32 *targets; |
b76cdba9 MW |
594 | |
595 | targets = bond->params.arp_targets; | |
596 | newtarget = in_aton(buf + 1); | |
597 | /* look for adds */ | |
598 | if (buf[0] == '+') { | |
d3bb52b0 | 599 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 600 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 601 | bond->dev->name, &newtarget); |
b76cdba9 MW |
602 | ret = -EINVAL; |
603 | goto out; | |
604 | } | |
605 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 606 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 607 | if (targets[i] == newtarget) { /* duplicate */ |
a4aee5c8 | 608 | pr_err("%s: ARP target %pI4 is already present\n", |
63779436 | 609 | bond->dev->name, &newtarget); |
b76cdba9 MW |
610 | ret = -EINVAL; |
611 | goto out; | |
612 | } | |
5a31bec0 | 613 | if (targets[i] == 0) { |
a4aee5c8 JP |
614 | pr_info("%s: adding ARP target %pI4.\n", |
615 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
616 | done = 1; |
617 | targets[i] = newtarget; | |
618 | } | |
619 | } | |
620 | if (!done) { | |
a4aee5c8 | 621 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 MW |
622 | bond->dev->name); |
623 | ret = -EINVAL; | |
624 | goto out; | |
625 | } | |
626 | ||
3d632c3f | 627 | } else if (buf[0] == '-') { |
d3bb52b0 | 628 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 629 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 630 | bond->dev->name, &newtarget); |
b76cdba9 MW |
631 | ret = -EINVAL; |
632 | goto out; | |
633 | } | |
634 | ||
5a31bec0 | 635 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 636 | if (targets[i] == newtarget) { |
5a31bec0 | 637 | int j; |
a4aee5c8 JP |
638 | pr_info("%s: removing ARP target %pI4.\n", |
639 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
640 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
641 | targets[j] = targets[j+1]; | |
642 | ||
643 | targets[j] = 0; | |
b76cdba9 MW |
644 | done = 1; |
645 | } | |
646 | } | |
647 | if (!done) { | |
a4aee5c8 JP |
648 | pr_info("%s: unable to remove nonexistent ARP target %pI4.\n", |
649 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
650 | ret = -EINVAL; |
651 | goto out; | |
652 | } | |
3d632c3f | 653 | } else { |
a4aee5c8 JP |
654 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
655 | bond->dev->name); | |
b76cdba9 MW |
656 | ret = -EPERM; |
657 | goto out; | |
658 | } | |
659 | ||
660 | out: | |
661 | return ret; | |
662 | } | |
43cb76d9 | 663 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
664 | |
665 | /* | |
666 | * Show and set the up and down delays. These must be multiples of the | |
667 | * MII monitoring value, and are stored internally as the multiplier. | |
668 | * Thus, we must translate to MS for the real world. | |
669 | */ | |
43cb76d9 GKH |
670 | static ssize_t bonding_show_downdelay(struct device *d, |
671 | struct device_attribute *attr, | |
672 | char *buf) | |
b76cdba9 | 673 | { |
43cb76d9 | 674 | struct bonding *bond = to_bond(d); |
b76cdba9 | 675 | |
7bd46508 | 676 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
677 | } |
678 | ||
43cb76d9 GKH |
679 | static ssize_t bonding_store_downdelay(struct device *d, |
680 | struct device_attribute *attr, | |
681 | const char *buf, size_t count) | |
b76cdba9 MW |
682 | { |
683 | int new_value, ret = count; | |
43cb76d9 | 684 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
685 | |
686 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 687 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
688 | bond->dev->name); |
689 | ret = -EPERM; | |
690 | goto out; | |
691 | } | |
692 | ||
693 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 694 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
695 | ret = -EINVAL; |
696 | goto out; | |
697 | } | |
698 | if (new_value < 0) { | |
a4aee5c8 | 699 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
700 | bond->dev->name, new_value, 1, INT_MAX); |
701 | ret = -EINVAL; | |
702 | goto out; | |
703 | } else { | |
704 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 705 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
706 | bond->dev->name, new_value, |
707 | bond->params.miimon, | |
708 | (new_value / bond->params.miimon) * | |
709 | bond->params.miimon); | |
b76cdba9 MW |
710 | } |
711 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
712 | pr_info("%s: Setting down delay to %d.\n", |
713 | bond->dev->name, | |
714 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
715 | |
716 | } | |
717 | ||
718 | out: | |
719 | return ret; | |
720 | } | |
3d632c3f SH |
721 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
722 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 723 | |
43cb76d9 GKH |
724 | static ssize_t bonding_show_updelay(struct device *d, |
725 | struct device_attribute *attr, | |
726 | char *buf) | |
b76cdba9 | 727 | { |
43cb76d9 | 728 | struct bonding *bond = to_bond(d); |
b76cdba9 | 729 | |
7bd46508 | 730 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
731 | |
732 | } | |
733 | ||
43cb76d9 GKH |
734 | static ssize_t bonding_store_updelay(struct device *d, |
735 | struct device_attribute *attr, | |
736 | const char *buf, size_t count) | |
b76cdba9 MW |
737 | { |
738 | int new_value, ret = count; | |
43cb76d9 | 739 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
740 | |
741 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 742 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
743 | bond->dev->name); |
744 | ret = -EPERM; | |
745 | goto out; | |
746 | } | |
747 | ||
748 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 749 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
750 | bond->dev->name); |
751 | ret = -EINVAL; | |
752 | goto out; | |
753 | } | |
754 | if (new_value < 0) { | |
a4aee5c8 | 755 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
756 | bond->dev->name, new_value, 1, INT_MAX); |
757 | ret = -EINVAL; | |
758 | goto out; | |
759 | } else { | |
760 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 761 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
762 | bond->dev->name, new_value, |
763 | bond->params.miimon, | |
764 | (new_value / bond->params.miimon) * | |
765 | bond->params.miimon); | |
b76cdba9 MW |
766 | } |
767 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
768 | pr_info("%s: Setting up delay to %d.\n", |
769 | bond->dev->name, | |
770 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
771 | } |
772 | ||
773 | out: | |
774 | return ret; | |
775 | } | |
3d632c3f SH |
776 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
777 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
778 | |
779 | /* | |
780 | * Show and set the LACP interval. Interface must be down, and the mode | |
781 | * must be set to 802.3ad mode. | |
782 | */ | |
43cb76d9 GKH |
783 | static ssize_t bonding_show_lacp(struct device *d, |
784 | struct device_attribute *attr, | |
785 | char *buf) | |
b76cdba9 | 786 | { |
43cb76d9 | 787 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
788 | |
789 | return sprintf(buf, "%s %d\n", | |
790 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 791 | bond->params.lacp_fast); |
b76cdba9 MW |
792 | } |
793 | ||
43cb76d9 GKH |
794 | static ssize_t bonding_store_lacp(struct device *d, |
795 | struct device_attribute *attr, | |
796 | const char *buf, size_t count) | |
b76cdba9 MW |
797 | { |
798 | int new_value, ret = count; | |
43cb76d9 | 799 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
800 | |
801 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 802 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
803 | bond->dev->name); |
804 | ret = -EPERM; | |
805 | goto out; | |
806 | } | |
807 | ||
808 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 809 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
810 | bond->dev->name); |
811 | ret = -EPERM; | |
812 | goto out; | |
813 | } | |
814 | ||
ece95f7f | 815 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
816 | |
817 | if ((new_value == 1) || (new_value == 0)) { | |
818 | bond->params.lacp_fast = new_value; | |
ba824a8b | 819 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 820 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
821 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
822 | new_value); | |
b76cdba9 | 823 | } else { |
a4aee5c8 | 824 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 825 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
826 | ret = -EINVAL; |
827 | } | |
828 | out: | |
829 | return ret; | |
830 | } | |
3d632c3f SH |
831 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
832 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 833 | |
655f8919 | 834 | static ssize_t bonding_show_min_links(struct device *d, |
835 | struct device_attribute *attr, | |
836 | char *buf) | |
837 | { | |
838 | struct bonding *bond = to_bond(d); | |
839 | ||
840 | return sprintf(buf, "%d\n", bond->params.min_links); | |
841 | } | |
842 | ||
843 | static ssize_t bonding_store_min_links(struct device *d, | |
844 | struct device_attribute *attr, | |
845 | const char *buf, size_t count) | |
846 | { | |
847 | struct bonding *bond = to_bond(d); | |
848 | int ret; | |
849 | unsigned int new_value; | |
850 | ||
851 | ret = kstrtouint(buf, 0, &new_value); | |
852 | if (ret < 0) { | |
853 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
854 | bond->dev->name, buf); | |
855 | return ret; | |
856 | } | |
857 | ||
858 | pr_info("%s: Setting min links value to %u\n", | |
859 | bond->dev->name, new_value); | |
860 | bond->params.min_links = new_value; | |
861 | return count; | |
862 | } | |
863 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
864 | bonding_show_min_links, bonding_store_min_links); | |
865 | ||
fd989c83 JV |
866 | static ssize_t bonding_show_ad_select(struct device *d, |
867 | struct device_attribute *attr, | |
868 | char *buf) | |
869 | { | |
870 | struct bonding *bond = to_bond(d); | |
871 | ||
872 | return sprintf(buf, "%s %d\n", | |
873 | ad_select_tbl[bond->params.ad_select].modename, | |
874 | bond->params.ad_select); | |
875 | } | |
876 | ||
877 | ||
878 | static ssize_t bonding_store_ad_select(struct device *d, | |
879 | struct device_attribute *attr, | |
880 | const char *buf, size_t count) | |
881 | { | |
882 | int new_value, ret = count; | |
883 | struct bonding *bond = to_bond(d); | |
884 | ||
885 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
886 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
887 | bond->dev->name); | |
fd989c83 JV |
888 | ret = -EPERM; |
889 | goto out; | |
890 | } | |
891 | ||
892 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
893 | ||
894 | if (new_value != -1) { | |
895 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
896 | pr_info("%s: Setting ad_select to %s (%d).\n", |
897 | bond->dev->name, ad_select_tbl[new_value].modename, | |
898 | new_value); | |
fd989c83 | 899 | } else { |
a4aee5c8 | 900 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
901 | bond->dev->name, (int)strlen(buf) - 1, buf); |
902 | ret = -EINVAL; | |
903 | } | |
904 | out: | |
905 | return ret; | |
906 | } | |
3d632c3f SH |
907 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
908 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 909 | |
ad246c99 BH |
910 | /* |
911 | * Show and set the number of peer notifications to send after a failover event. | |
912 | */ | |
913 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
914 | struct device_attribute *attr, | |
915 | char *buf) | |
916 | { | |
917 | struct bonding *bond = to_bond(d); | |
918 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
919 | } | |
920 | ||
921 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
922 | struct device_attribute *attr, | |
923 | const char *buf, size_t count) | |
924 | { | |
925 | struct bonding *bond = to_bond(d); | |
926 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
927 | return err ? err : count; | |
928 | } | |
929 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
930 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
931 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
932 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
933 | ||
b76cdba9 MW |
934 | /* |
935 | * Show and set the MII monitor interval. There are two tricky bits | |
936 | * here. First, if MII monitoring is activated, then we must disable | |
937 | * ARP monitoring. Second, if the timer isn't running, we must | |
938 | * start it. | |
939 | */ | |
43cb76d9 GKH |
940 | static ssize_t bonding_show_miimon(struct device *d, |
941 | struct device_attribute *attr, | |
942 | char *buf) | |
b76cdba9 | 943 | { |
43cb76d9 | 944 | struct bonding *bond = to_bond(d); |
b76cdba9 | 945 | |
7bd46508 | 946 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
947 | } |
948 | ||
43cb76d9 GKH |
949 | static ssize_t bonding_store_miimon(struct device *d, |
950 | struct device_attribute *attr, | |
951 | const char *buf, size_t count) | |
b76cdba9 MW |
952 | { |
953 | int new_value, ret = count; | |
43cb76d9 | 954 | struct bonding *bond = to_bond(d); |
b76cdba9 | 955 | |
fbb0c41b | 956 | if (!rtnl_trylock()) |
957 | return restart_syscall(); | |
b76cdba9 | 958 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 959 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
960 | bond->dev->name); |
961 | ret = -EINVAL; | |
962 | goto out; | |
963 | } | |
964 | if (new_value < 0) { | |
a4aee5c8 | 965 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
966 | bond->dev->name, new_value, 1, INT_MAX); |
967 | ret = -EINVAL; | |
968 | goto out; | |
969 | } else { | |
a4aee5c8 JP |
970 | pr_info("%s: Setting MII monitoring interval to %d.\n", |
971 | bond->dev->name, new_value); | |
b76cdba9 | 972 | bond->params.miimon = new_value; |
3d632c3f | 973 | if (bond->params.updelay) |
a4aee5c8 JP |
974 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", |
975 | bond->dev->name, | |
976 | bond->params.updelay * bond->params.miimon); | |
3d632c3f | 977 | if (bond->params.downdelay) |
a4aee5c8 JP |
978 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", |
979 | bond->dev->name, | |
980 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 | 981 | if (bond->params.arp_interval) { |
a4aee5c8 JP |
982 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", |
983 | bond->dev->name); | |
b76cdba9 | 984 | bond->params.arp_interval = 0; |
f5b2b966 | 985 | if (bond->params.arp_validate) { |
f5b2b966 JV |
986 | bond->params.arp_validate = |
987 | BOND_ARP_VALIDATE_NONE; | |
988 | } | |
b76cdba9 MW |
989 | } |
990 | ||
991 | if (bond->dev->flags & IFF_UP) { | |
992 | /* If the interface is up, we may need to fire off | |
993 | * the MII timer. If the interface is down, the | |
994 | * timer will get fired off when the open function | |
995 | * is called. | |
996 | */ | |
fbb0c41b | 997 | cancel_delayed_work_sync(&bond->arp_work); |
998 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
b76cdba9 MW |
999 | } |
1000 | } | |
1001 | out: | |
fbb0c41b | 1002 | rtnl_unlock(); |
b76cdba9 MW |
1003 | return ret; |
1004 | } | |
3d632c3f SH |
1005 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1006 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1007 | |
1008 | /* | |
1009 | * Show and set the primary slave. The store function is much | |
1010 | * simpler than bonding_store_slaves function because it only needs to | |
1011 | * handle one interface name. | |
1012 | * The bond must be a mode that supports a primary for this be | |
1013 | * set. | |
1014 | */ | |
43cb76d9 GKH |
1015 | static ssize_t bonding_show_primary(struct device *d, |
1016 | struct device_attribute *attr, | |
1017 | char *buf) | |
b76cdba9 MW |
1018 | { |
1019 | int count = 0; | |
43cb76d9 | 1020 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1021 | |
1022 | if (bond->primary_slave) | |
7bd46508 | 1023 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1024 | |
1025 | return count; | |
1026 | } | |
1027 | ||
43cb76d9 GKH |
1028 | static ssize_t bonding_store_primary(struct device *d, |
1029 | struct device_attribute *attr, | |
1030 | const char *buf, size_t count) | |
b76cdba9 MW |
1031 | { |
1032 | int i; | |
1033 | struct slave *slave; | |
43cb76d9 | 1034 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1035 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1036 | |
496a60cd EB |
1037 | if (!rtnl_trylock()) |
1038 | return restart_syscall(); | |
e843fa50 | 1039 | block_netpoll_tx(); |
e934dd78 JV |
1040 | read_lock(&bond->lock); |
1041 | write_lock_bh(&bond->curr_slave_lock); | |
1042 | ||
b76cdba9 | 1043 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1044 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1045 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1046 | goto out; |
1047 | } | |
b76cdba9 | 1048 | |
eb6e98a1 | 1049 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1050 | |
f4bb2e9c AG |
1051 | /* check to see if we are clearing primary */ |
1052 | if (!strlen(ifname) || buf[0] == '\n') { | |
1053 | pr_info("%s: Setting primary slave to None.\n", | |
1054 | bond->dev->name); | |
1055 | bond->primary_slave = NULL; | |
1056 | bond_select_active_slave(bond); | |
1057 | goto out; | |
1058 | } | |
1059 | ||
1060 | bond_for_each_slave(bond, slave, i) { | |
1061 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
1062 | pr_info("%s: Setting %s as primary slave.\n", | |
1063 | bond->dev->name, slave->dev->name); | |
1064 | bond->primary_slave = slave; | |
1065 | strcpy(bond->params.primary, slave->dev->name); | |
1066 | bond_select_active_slave(bond); | |
1067 | goto out; | |
b76cdba9 MW |
1068 | } |
1069 | } | |
f4bb2e9c | 1070 | |
8a93664d WP |
1071 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1072 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1073 | ||
1074 | pr_info("%s: Recording %s as primary, " | |
1075 | "but it has not been enslaved to %s yet.\n", | |
1076 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1077 | out: |
e934dd78 JV |
1078 | write_unlock_bh(&bond->curr_slave_lock); |
1079 | read_unlock(&bond->lock); | |
e843fa50 | 1080 | unblock_netpoll_tx(); |
6603a6f2 JV |
1081 | rtnl_unlock(); |
1082 | ||
b76cdba9 MW |
1083 | return count; |
1084 | } | |
3d632c3f SH |
1085 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1086 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1087 | |
a549952a JP |
1088 | /* |
1089 | * Show and set the primary_reselect flag. | |
1090 | */ | |
1091 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1092 | struct device_attribute *attr, | |
1093 | char *buf) | |
1094 | { | |
1095 | struct bonding *bond = to_bond(d); | |
1096 | ||
1097 | return sprintf(buf, "%s %d\n", | |
1098 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1099 | bond->params.primary_reselect); | |
1100 | } | |
1101 | ||
1102 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1103 | struct device_attribute *attr, | |
1104 | const char *buf, size_t count) | |
1105 | { | |
1106 | int new_value, ret = count; | |
1107 | struct bonding *bond = to_bond(d); | |
1108 | ||
1109 | if (!rtnl_trylock()) | |
1110 | return restart_syscall(); | |
1111 | ||
1112 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1113 | if (new_value < 0) { | |
a4aee5c8 | 1114 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1115 | bond->dev->name, |
1116 | (int) strlen(buf) - 1, buf); | |
1117 | ret = -EINVAL; | |
1118 | goto out; | |
1119 | } | |
1120 | ||
1121 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1122 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1123 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1124 | new_value); | |
1125 | ||
e843fa50 | 1126 | block_netpoll_tx(); |
a549952a JP |
1127 | read_lock(&bond->lock); |
1128 | write_lock_bh(&bond->curr_slave_lock); | |
1129 | bond_select_active_slave(bond); | |
1130 | write_unlock_bh(&bond->curr_slave_lock); | |
1131 | read_unlock(&bond->lock); | |
e843fa50 | 1132 | unblock_netpoll_tx(); |
a549952a JP |
1133 | out: |
1134 | rtnl_unlock(); | |
1135 | return ret; | |
1136 | } | |
1137 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1138 | bonding_show_primary_reselect, | |
1139 | bonding_store_primary_reselect); | |
1140 | ||
b76cdba9 MW |
1141 | /* |
1142 | * Show and set the use_carrier flag. | |
1143 | */ | |
43cb76d9 GKH |
1144 | static ssize_t bonding_show_carrier(struct device *d, |
1145 | struct device_attribute *attr, | |
1146 | char *buf) | |
b76cdba9 | 1147 | { |
43cb76d9 | 1148 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1149 | |
7bd46508 | 1150 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1151 | } |
1152 | ||
43cb76d9 GKH |
1153 | static ssize_t bonding_store_carrier(struct device *d, |
1154 | struct device_attribute *attr, | |
1155 | const char *buf, size_t count) | |
b76cdba9 MW |
1156 | { |
1157 | int new_value, ret = count; | |
43cb76d9 | 1158 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1159 | |
1160 | ||
1161 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1162 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1163 | bond->dev->name); |
1164 | ret = -EINVAL; | |
1165 | goto out; | |
1166 | } | |
1167 | if ((new_value == 0) || (new_value == 1)) { | |
1168 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1169 | pr_info("%s: Setting use_carrier to %d.\n", |
1170 | bond->dev->name, new_value); | |
b76cdba9 | 1171 | } else { |
a4aee5c8 JP |
1172 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1173 | bond->dev->name, new_value); | |
b76cdba9 MW |
1174 | } |
1175 | out: | |
672bda33 | 1176 | return ret; |
b76cdba9 | 1177 | } |
3d632c3f SH |
1178 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1179 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1180 | |
1181 | ||
1182 | /* | |
1183 | * Show and set currently active_slave. | |
1184 | */ | |
43cb76d9 GKH |
1185 | static ssize_t bonding_show_active_slave(struct device *d, |
1186 | struct device_attribute *attr, | |
1187 | char *buf) | |
b76cdba9 MW |
1188 | { |
1189 | struct slave *curr; | |
43cb76d9 | 1190 | struct bonding *bond = to_bond(d); |
16cd0160 | 1191 | int count = 0; |
b76cdba9 | 1192 | |
b76cdba9 MW |
1193 | read_lock(&bond->curr_slave_lock); |
1194 | curr = bond->curr_active_slave; | |
1195 | read_unlock(&bond->curr_slave_lock); | |
1196 | ||
1197 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1198 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1199 | return count; |
1200 | } | |
1201 | ||
43cb76d9 GKH |
1202 | static ssize_t bonding_store_active_slave(struct device *d, |
1203 | struct device_attribute *attr, | |
1204 | const char *buf, size_t count) | |
b76cdba9 MW |
1205 | { |
1206 | int i; | |
1207 | struct slave *slave; | |
3d632c3f SH |
1208 | struct slave *old_active = NULL; |
1209 | struct slave *new_active = NULL; | |
43cb76d9 | 1210 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1211 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1212 | |
496a60cd EB |
1213 | if (!rtnl_trylock()) |
1214 | return restart_syscall(); | |
e843fa50 NH |
1215 | |
1216 | block_netpoll_tx(); | |
e934dd78 JV |
1217 | read_lock(&bond->lock); |
1218 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1219 | |
f4bb2e9c | 1220 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 | 1221 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f | 1222 | bond->dev->name, bond->dev->name, bond->params.mode); |
f4bb2e9c AG |
1223 | goto out; |
1224 | } | |
1225 | ||
c84e1590 | 1226 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c AG |
1227 | |
1228 | /* check to see if we are clearing active */ | |
1229 | if (!strlen(ifname) || buf[0] == '\n') { | |
1230 | pr_info("%s: Clearing current active slave.\n", | |
1231 | bond->dev->name); | |
1232 | bond->curr_active_slave = NULL; | |
1233 | bond_select_active_slave(bond); | |
1234 | goto out; | |
1235 | } | |
1236 | ||
1237 | bond_for_each_slave(bond, slave, i) { | |
1238 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
1239 | old_active = bond->curr_active_slave; | |
1240 | new_active = slave; | |
1241 | if (new_active == old_active) { | |
1242 | /* do nothing */ | |
1243 | pr_info("%s: %s is already the current" | |
1244 | " active slave.\n", | |
1245 | bond->dev->name, | |
1246 | slave->dev->name); | |
1247 | goto out; | |
1248 | } | |
1249 | else { | |
1250 | if ((new_active) && | |
1251 | (old_active) && | |
1252 | (new_active->link == BOND_LINK_UP) && | |
1253 | IS_UP(new_active->dev)) { | |
1254 | pr_info("%s: Setting %s as active" | |
1255 | " slave.\n", | |
a4aee5c8 JP |
1256 | bond->dev->name, |
1257 | slave->dev->name); | |
f4bb2e9c AG |
1258 | bond_change_active_slave(bond, |
1259 | new_active); | |
b76cdba9 MW |
1260 | } |
1261 | else { | |
f4bb2e9c AG |
1262 | pr_info("%s: Could not set %s as" |
1263 | " active slave; either %s is" | |
1264 | " down or the link is down.\n", | |
1265 | bond->dev->name, | |
1266 | slave->dev->name, | |
1267 | slave->dev->name); | |
b76cdba9 | 1268 | } |
f4bb2e9c | 1269 | goto out; |
b76cdba9 MW |
1270 | } |
1271 | } | |
b76cdba9 | 1272 | } |
f4bb2e9c AG |
1273 | |
1274 | pr_info("%s: Unable to set %.*s as active slave.\n", | |
1275 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
3d632c3f | 1276 | out: |
e934dd78 JV |
1277 | write_unlock_bh(&bond->curr_slave_lock); |
1278 | read_unlock(&bond->lock); | |
e843fa50 NH |
1279 | unblock_netpoll_tx(); |
1280 | ||
6603a6f2 JV |
1281 | rtnl_unlock(); |
1282 | ||
b76cdba9 MW |
1283 | return count; |
1284 | ||
1285 | } | |
3d632c3f SH |
1286 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1287 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1288 | |
1289 | ||
1290 | /* | |
1291 | * Show link status of the bond interface. | |
1292 | */ | |
43cb76d9 GKH |
1293 | static ssize_t bonding_show_mii_status(struct device *d, |
1294 | struct device_attribute *attr, | |
1295 | char *buf) | |
b76cdba9 MW |
1296 | { |
1297 | struct slave *curr; | |
43cb76d9 | 1298 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1299 | |
1300 | read_lock(&bond->curr_slave_lock); | |
1301 | curr = bond->curr_active_slave; | |
1302 | read_unlock(&bond->curr_slave_lock); | |
1303 | ||
3d632c3f | 1304 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1305 | } |
43cb76d9 | 1306 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 MW |
1307 | |
1308 | ||
1309 | /* | |
1310 | * Show current 802.3ad aggregator ID. | |
1311 | */ | |
43cb76d9 GKH |
1312 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1313 | struct device_attribute *attr, | |
1314 | char *buf) | |
b76cdba9 MW |
1315 | { |
1316 | int count = 0; | |
43cb76d9 | 1317 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1318 | |
1319 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1320 | struct ad_info ad_info; | |
3d632c3f SH |
1321 | count = sprintf(buf, "%d\n", |
1322 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1323 | ? 0 : ad_info.aggregator_id); | |
b76cdba9 | 1324 | } |
b76cdba9 MW |
1325 | |
1326 | return count; | |
1327 | } | |
43cb76d9 | 1328 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1329 | |
1330 | ||
1331 | /* | |
1332 | * Show number of active 802.3ad ports. | |
1333 | */ | |
43cb76d9 GKH |
1334 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1335 | struct device_attribute *attr, | |
1336 | char *buf) | |
b76cdba9 MW |
1337 | { |
1338 | int count = 0; | |
43cb76d9 | 1339 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1340 | |
1341 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1342 | struct ad_info ad_info; | |
3d632c3f SH |
1343 | count = sprintf(buf, "%d\n", |
1344 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1345 | ? 0 : ad_info.ports); | |
b76cdba9 | 1346 | } |
b76cdba9 MW |
1347 | |
1348 | return count; | |
1349 | } | |
43cb76d9 | 1350 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1351 | |
1352 | ||
1353 | /* | |
1354 | * Show current 802.3ad actor key. | |
1355 | */ | |
43cb76d9 GKH |
1356 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1357 | struct device_attribute *attr, | |
1358 | char *buf) | |
b76cdba9 MW |
1359 | { |
1360 | int count = 0; | |
43cb76d9 | 1361 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1362 | |
1363 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1364 | struct ad_info ad_info; | |
3d632c3f SH |
1365 | count = sprintf(buf, "%d\n", |
1366 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1367 | ? 0 : ad_info.actor_key); | |
b76cdba9 | 1368 | } |
b76cdba9 MW |
1369 | |
1370 | return count; | |
1371 | } | |
43cb76d9 | 1372 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1373 | |
1374 | ||
1375 | /* | |
1376 | * Show current 802.3ad partner key. | |
1377 | */ | |
43cb76d9 GKH |
1378 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1379 | struct device_attribute *attr, | |
1380 | char *buf) | |
b76cdba9 MW |
1381 | { |
1382 | int count = 0; | |
43cb76d9 | 1383 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1384 | |
1385 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1386 | struct ad_info ad_info; | |
3d632c3f SH |
1387 | count = sprintf(buf, "%d\n", |
1388 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1389 | ? 0 : ad_info.partner_key); | |
b76cdba9 | 1390 | } |
b76cdba9 MW |
1391 | |
1392 | return count; | |
1393 | } | |
43cb76d9 | 1394 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1395 | |
1396 | ||
1397 | /* | |
1398 | * Show current 802.3ad partner mac. | |
1399 | */ | |
43cb76d9 GKH |
1400 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1401 | struct device_attribute *attr, | |
1402 | char *buf) | |
b76cdba9 MW |
1403 | { |
1404 | int count = 0; | |
43cb76d9 | 1405 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1406 | |
1407 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1408 | struct ad_info ad_info; | |
3d632c3f | 1409 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1410 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1411 | } |
b76cdba9 MW |
1412 | |
1413 | return count; | |
1414 | } | |
43cb76d9 | 1415 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1416 | |
bb1d9123 AG |
1417 | /* |
1418 | * Show the queue_ids of the slaves in the current bond. | |
1419 | */ | |
1420 | static ssize_t bonding_show_queue_id(struct device *d, | |
1421 | struct device_attribute *attr, | |
1422 | char *buf) | |
1423 | { | |
1424 | struct slave *slave; | |
1425 | int i, res = 0; | |
1426 | struct bonding *bond = to_bond(d); | |
1427 | ||
1428 | if (!rtnl_trylock()) | |
1429 | return restart_syscall(); | |
1430 | ||
1431 | read_lock(&bond->lock); | |
1432 | bond_for_each_slave(bond, slave, i) { | |
79236680 NP |
1433 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1434 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1435 | if ((PAGE_SIZE - res) > 10) |
1436 | res = PAGE_SIZE - 10; | |
1437 | res += sprintf(buf + res, "++more++ "); | |
1438 | break; | |
1439 | } | |
1440 | res += sprintf(buf + res, "%s:%d ", | |
1441 | slave->dev->name, slave->queue_id); | |
1442 | } | |
1443 | read_unlock(&bond->lock); | |
1444 | if (res) | |
1445 | buf[res-1] = '\n'; /* eat the leftover space */ | |
1446 | rtnl_unlock(); | |
1447 | return res; | |
1448 | } | |
1449 | ||
1450 | /* | |
1451 | * Set the queue_ids of the slaves in the current bond. The bond | |
1452 | * interface must be enslaved for this to work. | |
1453 | */ | |
1454 | static ssize_t bonding_store_queue_id(struct device *d, | |
1455 | struct device_attribute *attr, | |
1456 | const char *buffer, size_t count) | |
1457 | { | |
1458 | struct slave *slave, *update_slave; | |
1459 | struct bonding *bond = to_bond(d); | |
1460 | u16 qid; | |
1461 | int i, ret = count; | |
1462 | char *delim; | |
1463 | struct net_device *sdev = NULL; | |
1464 | ||
1465 | if (!rtnl_trylock()) | |
1466 | return restart_syscall(); | |
1467 | ||
1468 | /* delim will point to queue id if successful */ | |
1469 | delim = strchr(buffer, ':'); | |
1470 | if (!delim) | |
1471 | goto err_no_cmd; | |
1472 | ||
1473 | /* | |
1474 | * Terminate string that points to device name and bump it | |
1475 | * up one, so we can read the queue id there. | |
1476 | */ | |
1477 | *delim = '\0'; | |
1478 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1479 | goto err_no_cmd; | |
1480 | ||
1481 | /* Check buffer length, valid ifname and queue id */ | |
1482 | if (strlen(buffer) > IFNAMSIZ || | |
1483 | !dev_valid_name(buffer) || | |
8a540ff9 | 1484 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1485 | goto err_no_cmd; |
1486 | ||
1487 | /* Get the pointer to that interface if it exists */ | |
1488 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1489 | if (!sdev) | |
1490 | goto err_no_cmd; | |
1491 | ||
1492 | read_lock(&bond->lock); | |
1493 | ||
1494 | /* Search for thes slave and check for duplicate qids */ | |
1495 | update_slave = NULL; | |
1496 | bond_for_each_slave(bond, slave, i) { | |
1497 | if (sdev == slave->dev) | |
1498 | /* | |
1499 | * We don't need to check the matching | |
1500 | * slave for dups, since we're overwriting it | |
1501 | */ | |
1502 | update_slave = slave; | |
1503 | else if (qid && qid == slave->queue_id) { | |
1504 | goto err_no_cmd_unlock; | |
1505 | } | |
1506 | } | |
1507 | ||
1508 | if (!update_slave) | |
1509 | goto err_no_cmd_unlock; | |
1510 | ||
1511 | /* Actually set the qids for the slave */ | |
1512 | update_slave->queue_id = qid; | |
1513 | ||
1514 | read_unlock(&bond->lock); | |
1515 | out: | |
1516 | rtnl_unlock(); | |
1517 | return ret; | |
1518 | ||
1519 | err_no_cmd_unlock: | |
1520 | read_unlock(&bond->lock); | |
1521 | err_no_cmd: | |
1522 | pr_info("invalid input for queue_id set for %s.\n", | |
1523 | bond->dev->name); | |
1524 | ret = -EPERM; | |
1525 | goto out; | |
1526 | } | |
1527 | ||
1528 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1529 | bonding_store_queue_id); | |
1530 | ||
1531 | ||
ebd8e497 AG |
1532 | /* |
1533 | * Show and set the all_slaves_active flag. | |
1534 | */ | |
1535 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1536 | struct device_attribute *attr, | |
1537 | char *buf) | |
1538 | { | |
1539 | struct bonding *bond = to_bond(d); | |
1540 | ||
1541 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1542 | } | |
1543 | ||
1544 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1545 | struct device_attribute *attr, | |
1546 | const char *buf, size_t count) | |
1547 | { | |
1548 | int i, new_value, ret = count; | |
1549 | struct bonding *bond = to_bond(d); | |
1550 | struct slave *slave; | |
1551 | ||
1552 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1553 | pr_err("%s: no all_slaves_active value specified.\n", | |
1554 | bond->dev->name); | |
1555 | ret = -EINVAL; | |
1556 | goto out; | |
1557 | } | |
1558 | ||
1559 | if (new_value == bond->params.all_slaves_active) | |
1560 | goto out; | |
1561 | ||
1562 | if ((new_value == 0) || (new_value == 1)) { | |
1563 | bond->params.all_slaves_active = new_value; | |
1564 | } else { | |
1565 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1566 | bond->dev->name, new_value); | |
1567 | ret = -EINVAL; | |
1568 | goto out; | |
1569 | } | |
b76cdba9 | 1570 | |
e196c0e5 | 1571 | read_lock(&bond->lock); |
ebd8e497 | 1572 | bond_for_each_slave(bond, slave, i) { |
e30bc066 | 1573 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1574 | if (new_value) |
2d7011ca | 1575 | slave->inactive = 0; |
ebd8e497 | 1576 | else |
2d7011ca | 1577 | slave->inactive = 1; |
ebd8e497 AG |
1578 | } |
1579 | } | |
e196c0e5 | 1580 | read_unlock(&bond->lock); |
ebd8e497 | 1581 | out: |
672bda33 | 1582 | return ret; |
ebd8e497 AG |
1583 | } |
1584 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1585 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1586 | |
c2952c31 FL |
1587 | /* |
1588 | * Show and set the number of IGMP membership reports to send on link failure | |
1589 | */ | |
1590 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1591 | struct device_attribute *attr, |
1592 | char *buf) | |
c2952c31 FL |
1593 | { |
1594 | struct bonding *bond = to_bond(d); | |
1595 | ||
1596 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1597 | } | |
1598 | ||
1599 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1600 | struct device_attribute *attr, |
1601 | const char *buf, size_t count) | |
c2952c31 FL |
1602 | { |
1603 | int new_value, ret = count; | |
1604 | struct bonding *bond = to_bond(d); | |
1605 | ||
1606 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1607 | pr_err("%s: no resend_igmp value specified.\n", | |
1608 | bond->dev->name); | |
1609 | ret = -EINVAL; | |
1610 | goto out; | |
1611 | } | |
1612 | ||
94265cf5 | 1613 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1614 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1615 | bond->dev->name, new_value); | |
1616 | ret = -EINVAL; | |
1617 | goto out; | |
1618 | } | |
1619 | ||
1620 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1621 | bond->dev->name, new_value); | |
1622 | bond->params.resend_igmp = new_value; | |
1623 | out: | |
1624 | return ret; | |
1625 | } | |
1626 | ||
1627 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1628 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1629 | ||
b76cdba9 | 1630 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1631 | &dev_attr_slaves.attr, |
1632 | &dev_attr_mode.attr, | |
dd957c57 | 1633 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1634 | &dev_attr_arp_validate.attr, |
1635 | &dev_attr_arp_interval.attr, | |
1636 | &dev_attr_arp_ip_target.attr, | |
1637 | &dev_attr_downdelay.attr, | |
1638 | &dev_attr_updelay.attr, | |
1639 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1640 | &dev_attr_ad_select.attr, |
43cb76d9 | 1641 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1642 | &dev_attr_num_grat_arp.attr, |
1643 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1644 | &dev_attr_miimon.attr, |
1645 | &dev_attr_primary.attr, | |
a549952a | 1646 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1647 | &dev_attr_use_carrier.attr, |
1648 | &dev_attr_active_slave.attr, | |
1649 | &dev_attr_mii_status.attr, | |
1650 | &dev_attr_ad_aggregator.attr, | |
1651 | &dev_attr_ad_num_ports.attr, | |
1652 | &dev_attr_ad_actor_key.attr, | |
1653 | &dev_attr_ad_partner_key.attr, | |
1654 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1655 | &dev_attr_queue_id.attr, |
ebd8e497 | 1656 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1657 | &dev_attr_resend_igmp.attr, |
655f8919 | 1658 | &dev_attr_min_links.attr, |
b76cdba9 MW |
1659 | NULL, |
1660 | }; | |
1661 | ||
1662 | static struct attribute_group bonding_group = { | |
1663 | .name = "bonding", | |
1664 | .attrs = per_bond_attrs, | |
1665 | }; | |
1666 | ||
1667 | /* | |
1668 | * Initialize sysfs. This sets up the bonding_masters file in | |
1669 | * /sys/class/net. | |
1670 | */ | |
4c22400a | 1671 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1672 | { |
b8a9787e | 1673 | int ret; |
b76cdba9 | 1674 | |
4c22400a | 1675 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1676 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a EB |
1677 | |
1678 | ret = netdev_class_create_file(&bn->class_attr_bonding_masters); | |
877cbd36 JV |
1679 | /* |
1680 | * Permit multiple loads of the module by ignoring failures to | |
1681 | * create the bonding_masters sysfs file. Bonding devices | |
1682 | * created by second or subsequent loads of the module will | |
1683 | * not be listed in, or controllable by, bonding_masters, but | |
1684 | * will have the usual "bonding" sysfs directory. | |
1685 | * | |
1686 | * This is done to preserve backwards compatibility for | |
1687 | * initscripts/sysconfig, which load bonding multiple times to | |
1688 | * configure multiple bonding devices. | |
1689 | */ | |
1690 | if (ret == -EEXIST) { | |
38d2f38b | 1691 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1692 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1693 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1694 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1695 | class_attr_bonding_masters.attr.name); |
130aa61a | 1696 | ret = 0; |
877cbd36 | 1697 | } |
b76cdba9 MW |
1698 | |
1699 | return ret; | |
1700 | ||
1701 | } | |
1702 | ||
1703 | /* | |
1704 | * Remove /sys/class/net/bonding_masters. | |
1705 | */ | |
4c22400a | 1706 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1707 | { |
4c22400a | 1708 | netdev_class_remove_file(&bn->class_attr_bonding_masters); |
b76cdba9 MW |
1709 | } |
1710 | ||
1711 | /* | |
1712 | * Initialize sysfs for each bond. This sets up and registers | |
1713 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1714 | */ | |
6151b3d4 | 1715 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1716 | { |
6151b3d4 | 1717 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1718 | } |
1719 |