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 | |
b76cdba9 MW |
171 | /* |
172 | * Show the slaves in the current bond. | |
173 | */ | |
43cb76d9 GKH |
174 | static ssize_t bonding_show_slaves(struct device *d, |
175 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 176 | { |
43cb76d9 | 177 | struct bonding *bond = to_bond(d); |
9caff1e7 | 178 | struct list_head *iter; |
dec1e90e | 179 | struct slave *slave; |
180 | int res = 0; | |
b76cdba9 | 181 | |
4d1ae5fb | 182 | if (!rtnl_trylock()) |
183 | return restart_syscall(); | |
184 | ||
9caff1e7 | 185 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
186 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
187 | /* not enough space for another interface name */ | |
188 | if ((PAGE_SIZE - res) > 10) | |
189 | res = PAGE_SIZE - 10; | |
7bd46508 | 190 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
191 | break; |
192 | } | |
193 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
194 | } | |
4d1ae5fb | 195 | |
196 | rtnl_unlock(); | |
197 | ||
1dcdcd69 WF |
198 | if (res) |
199 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 200 | |
b76cdba9 MW |
201 | return res; |
202 | } | |
203 | ||
204 | /* | |
d6641ccf | 205 | * Set the slaves in the current bond. |
f9f3545e JP |
206 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
207 | * All hard work should be done there. | |
b76cdba9 | 208 | */ |
43cb76d9 GKH |
209 | static ssize_t bonding_store_slaves(struct device *d, |
210 | struct device_attribute *attr, | |
211 | const char *buffer, size_t count) | |
b76cdba9 MW |
212 | { |
213 | char command[IFNAMSIZ + 1] = { 0, }; | |
214 | char *ifname; | |
f9f3545e JP |
215 | int res, ret = count; |
216 | struct net_device *dev; | |
43cb76d9 | 217 | struct bonding *bond = to_bond(d); |
b76cdba9 | 218 | |
496a60cd EB |
219 | if (!rtnl_trylock()) |
220 | return restart_syscall(); | |
027ea041 | 221 | |
b76cdba9 MW |
222 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
223 | ifname = command + 1; | |
224 | if ((strlen(command) <= 1) || | |
225 | !dev_valid_name(ifname)) | |
226 | goto err_no_cmd; | |
227 | ||
f9f3545e JP |
228 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
229 | if (!dev) { | |
230 | pr_info("%s: Interface %s does not exist!\n", | |
231 | bond->dev->name, ifname); | |
232 | ret = -ENODEV; | |
233 | goto out; | |
234 | } | |
b76cdba9 | 235 | |
f9f3545e JP |
236 | switch (command[0]) { |
237 | case '+': | |
238 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 239 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 240 | break; |
3d632c3f | 241 | |
f9f3545e JP |
242 | case '-': |
243 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
244 | res = bond_release(bond->dev, dev); | |
245 | break; | |
b76cdba9 | 246 | |
f9f3545e JP |
247 | default: |
248 | goto err_no_cmd; | |
b76cdba9 MW |
249 | } |
250 | ||
f9f3545e JP |
251 | if (res) |
252 | ret = res; | |
253 | goto out; | |
254 | ||
b76cdba9 | 255 | err_no_cmd: |
a4aee5c8 JP |
256 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
257 | bond->dev->name); | |
b76cdba9 MW |
258 | ret = -EPERM; |
259 | ||
260 | out: | |
027ea041 | 261 | rtnl_unlock(); |
b76cdba9 MW |
262 | return ret; |
263 | } | |
264 | ||
3d632c3f SH |
265 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
266 | bonding_store_slaves); | |
b76cdba9 MW |
267 | |
268 | /* | |
269 | * Show and set the bonding mode. The bond interface must be down to | |
270 | * change the mode. | |
271 | */ | |
43cb76d9 GKH |
272 | static ssize_t bonding_show_mode(struct device *d, |
273 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 274 | { |
43cb76d9 | 275 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
276 | |
277 | return sprintf(buf, "%s %d\n", | |
278 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 279 | bond->params.mode); |
b76cdba9 MW |
280 | } |
281 | ||
43cb76d9 GKH |
282 | static ssize_t bonding_store_mode(struct device *d, |
283 | struct device_attribute *attr, | |
284 | const char *buf, size_t count) | |
b76cdba9 | 285 | { |
72be35fe | 286 | int new_value, ret; |
43cb76d9 | 287 | struct bonding *bond = to_bond(d); |
b76cdba9 | 288 | |
ece95f7f | 289 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 290 | if (new_value < 0) { |
a4aee5c8 JP |
291 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
292 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
72be35fe | 293 | return -EINVAL; |
c5cb002f | 294 | } |
72be35fe JP |
295 | if (!rtnl_trylock()) |
296 | return restart_syscall(); | |
297 | ||
298 | ret = bond_option_mode_set(bond, new_value); | |
299 | if (!ret) { | |
300 | pr_info("%s: setting mode to %s (%d).\n", | |
301 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
302 | new_value); | |
303 | ret = count; | |
c5cb002f | 304 | } |
8f903c70 | 305 | |
ea6836dd | 306 | rtnl_unlock(); |
b76cdba9 MW |
307 | return ret; |
308 | } | |
3d632c3f SH |
309 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
310 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
311 | |
312 | /* | |
3d632c3f | 313 | * Show and set the bonding transmit hash method. |
b76cdba9 | 314 | */ |
43cb76d9 GKH |
315 | static ssize_t bonding_show_xmit_hash(struct device *d, |
316 | struct device_attribute *attr, | |
317 | char *buf) | |
b76cdba9 | 318 | { |
43cb76d9 | 319 | struct bonding *bond = to_bond(d); |
b76cdba9 | 320 | |
8e4b9329 WF |
321 | return sprintf(buf, "%s %d\n", |
322 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
323 | bond->params.xmit_policy); | |
b76cdba9 MW |
324 | } |
325 | ||
43cb76d9 GKH |
326 | static ssize_t bonding_store_xmit_hash(struct device *d, |
327 | struct device_attribute *attr, | |
328 | const char *buf, size_t count) | |
b76cdba9 MW |
329 | { |
330 | int new_value, ret = count; | |
43cb76d9 | 331 | struct bonding *bond = to_bond(d); |
b76cdba9 | 332 | |
ece95f7f | 333 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 334 | if (new_value < 0) { |
a4aee5c8 | 335 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
336 | bond->dev->name, |
337 | (int)strlen(buf) - 1, buf); | |
338 | ret = -EINVAL; | |
b76cdba9 MW |
339 | } else { |
340 | bond->params.xmit_policy = new_value; | |
a4aee5c8 | 341 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
342 | bond->dev->name, |
343 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 | 344 | } |
53edee2c | 345 | |
b76cdba9 MW |
346 | return ret; |
347 | } | |
3d632c3f SH |
348 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
349 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 350 | |
f5b2b966 JV |
351 | /* |
352 | * Show and set arp_validate. | |
353 | */ | |
43cb76d9 GKH |
354 | static ssize_t bonding_show_arp_validate(struct device *d, |
355 | struct device_attribute *attr, | |
356 | char *buf) | |
f5b2b966 | 357 | { |
43cb76d9 | 358 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
359 | |
360 | return sprintf(buf, "%s %d\n", | |
361 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 362 | bond->params.arp_validate); |
f5b2b966 JV |
363 | } |
364 | ||
43cb76d9 GKH |
365 | static ssize_t bonding_store_arp_validate(struct device *d, |
366 | struct device_attribute *attr, | |
367 | const char *buf, size_t count) | |
f5b2b966 | 368 | { |
43cb76d9 | 369 | struct bonding *bond = to_bond(d); |
5bb9e0b5 | 370 | int new_value, ret = count; |
f5b2b966 | 371 | |
5c5038dc | 372 | if (!rtnl_trylock()) |
373 | return restart_syscall(); | |
ece95f7f | 374 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 375 | if (new_value < 0) { |
a4aee5c8 | 376 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 | 377 | bond->dev->name, buf); |
5c5038dc | 378 | ret = -EINVAL; |
379 | goto out; | |
f5b2b966 | 380 | } |
5bb9e0b5 | 381 | if (bond->params.mode != BOND_MODE_ACTIVEBACKUP) { |
a4aee5c8 | 382 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 | 383 | bond->dev->name); |
5c5038dc | 384 | ret = -EINVAL; |
385 | goto out; | |
f5b2b966 | 386 | } |
a4aee5c8 JP |
387 | pr_info("%s: setting arp_validate to %s (%d).\n", |
388 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
389 | new_value); | |
f5b2b966 | 390 | |
5bb9e0b5 | 391 | if (bond->dev->flags & IFF_UP) { |
392 | if (!new_value) | |
393 | bond->recv_probe = NULL; | |
394 | else if (bond->params.arp_interval) | |
395 | bond->recv_probe = bond_arp_rcv; | |
396 | } | |
f5b2b966 | 397 | bond->params.arp_validate = new_value; |
5c5038dc | 398 | out: |
399 | rtnl_unlock(); | |
f5b2b966 | 400 | |
5c5038dc | 401 | return ret; |
f5b2b966 JV |
402 | } |
403 | ||
3d632c3f SH |
404 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
405 | bonding_store_arp_validate); | |
8599b52e VF |
406 | /* |
407 | * Show and set arp_all_targets. | |
408 | */ | |
409 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
410 | struct device_attribute *attr, | |
411 | char *buf) | |
412 | { | |
413 | struct bonding *bond = to_bond(d); | |
414 | int value = bond->params.arp_all_targets; | |
415 | ||
416 | return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename, | |
417 | value); | |
418 | } | |
419 | ||
420 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
421 | struct device_attribute *attr, | |
422 | const char *buf, size_t count) | |
423 | { | |
424 | struct bonding *bond = to_bond(d); | |
425 | int new_value; | |
426 | ||
427 | new_value = bond_parse_parm(buf, arp_all_targets_tbl); | |
428 | if (new_value < 0) { | |
429 | pr_err("%s: Ignoring invalid arp_all_targets value %s\n", | |
430 | bond->dev->name, buf); | |
431 | return -EINVAL; | |
432 | } | |
433 | pr_info("%s: setting arp_all_targets to %s (%d).\n", | |
434 | bond->dev->name, arp_all_targets_tbl[new_value].modename, | |
435 | new_value); | |
436 | ||
437 | bond->params.arp_all_targets = new_value; | |
438 | ||
439 | return count; | |
440 | } | |
441 | ||
442 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
443 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 444 | |
dd957c57 JV |
445 | /* |
446 | * Show and store fail_over_mac. User only allowed to change the | |
447 | * value when there are no slaves. | |
448 | */ | |
3d632c3f SH |
449 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
450 | struct device_attribute *attr, | |
451 | char *buf) | |
dd957c57 JV |
452 | { |
453 | struct bonding *bond = to_bond(d); | |
454 | ||
3915c1e8 JV |
455 | return sprintf(buf, "%s %d\n", |
456 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
457 | bond->params.fail_over_mac); | |
dd957c57 JV |
458 | } |
459 | ||
3d632c3f SH |
460 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
461 | struct device_attribute *attr, | |
462 | const char *buf, size_t count) | |
dd957c57 | 463 | { |
9402b746 | 464 | int new_value, ret = count; |
dd957c57 JV |
465 | struct bonding *bond = to_bond(d); |
466 | ||
9402b746 | 467 | if (!rtnl_trylock()) |
468 | return restart_syscall(); | |
469 | ||
0965a1f3 | 470 | if (bond_has_slaves(bond)) { |
a4aee5c8 | 471 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 472 | bond->dev->name); |
9402b746 | 473 | ret = -EPERM; |
474 | goto out; | |
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 | 480 | bond->dev->name, buf); |
9402b746 | 481 | ret = -EINVAL; |
482 | goto out; | |
dd957c57 JV |
483 | } |
484 | ||
3915c1e8 | 485 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
486 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
487 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
488 | new_value); | |
3915c1e8 | 489 | |
9402b746 | 490 | out: |
491 | rtnl_unlock(); | |
492 | return ret; | |
dd957c57 JV |
493 | } |
494 | ||
3d632c3f SH |
495 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
496 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 497 | |
b76cdba9 MW |
498 | /* |
499 | * Show and set the arp timer interval. There are two tricky bits | |
500 | * here. First, if ARP monitoring is activated, then we must disable | |
501 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
502 | * start it. | |
503 | */ | |
43cb76d9 GKH |
504 | static ssize_t bonding_show_arp_interval(struct device *d, |
505 | struct device_attribute *attr, | |
506 | char *buf) | |
b76cdba9 | 507 | { |
43cb76d9 | 508 | struct bonding *bond = to_bond(d); |
b76cdba9 | 509 | |
7bd46508 | 510 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
511 | } |
512 | ||
43cb76d9 GKH |
513 | static ssize_t bonding_store_arp_interval(struct device *d, |
514 | struct device_attribute *attr, | |
515 | const char *buf, size_t count) | |
b76cdba9 | 516 | { |
43cb76d9 | 517 | struct bonding *bond = to_bond(d); |
5bb9e0b5 | 518 | int new_value, ret = count; |
b76cdba9 | 519 | |
fbb0c41b | 520 | if (!rtnl_trylock()) |
521 | return restart_syscall(); | |
b76cdba9 | 522 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 523 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
524 | bond->dev->name); |
525 | ret = -EINVAL; | |
526 | goto out; | |
527 | } | |
528 | if (new_value < 0) { | |
1bc7db16 | 529 | pr_err("%s: Invalid arp_interval value %d not in range 0-%d; rejected.\n", |
b76cdba9 MW |
530 | bond->dev->name, new_value, INT_MAX); |
531 | ret = -EINVAL; | |
532 | goto out; | |
533 | } | |
c5cb002f AG |
534 | if (bond->params.mode == BOND_MODE_ALB || |
535 | bond->params.mode == BOND_MODE_TLB) { | |
536 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", | |
537 | bond->dev->name, bond->dev->name); | |
538 | ret = -EINVAL; | |
539 | goto out; | |
540 | } | |
a4aee5c8 JP |
541 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
542 | bond->dev->name, new_value); | |
b76cdba9 | 543 | bond->params.arp_interval = new_value; |
1bc7db16 | 544 | if (new_value) { |
545 | if (bond->params.miimon) { | |
546 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
547 | bond->dev->name, bond->dev->name); | |
548 | bond->params.miimon = 0; | |
549 | } | |
550 | if (!bond->params.arp_targets[0]) | |
551 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
552 | bond->dev->name); | |
b76cdba9 MW |
553 | } |
554 | if (bond->dev->flags & IFF_UP) { | |
555 | /* If the interface is up, we may need to fire off | |
556 | * the ARP timer. If the interface is down, the | |
557 | * timer will get fired off when the open function | |
558 | * is called. | |
559 | */ | |
1bc7db16 | 560 | if (!new_value) { |
5bb9e0b5 | 561 | if (bond->params.arp_validate) |
562 | bond->recv_probe = NULL; | |
1bc7db16 | 563 | cancel_delayed_work_sync(&bond->arp_work); |
564 | } else { | |
5bb9e0b5 | 565 | /* arp_validate can be set only in active-backup mode */ |
566 | if (bond->params.arp_validate) | |
567 | bond->recv_probe = bond_arp_rcv; | |
1bc7db16 | 568 | cancel_delayed_work_sync(&bond->mii_work); |
569 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
570 | } | |
b76cdba9 | 571 | } |
b76cdba9 | 572 | out: |
fbb0c41b | 573 | rtnl_unlock(); |
b76cdba9 MW |
574 | return ret; |
575 | } | |
3d632c3f SH |
576 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
577 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
578 | |
579 | /* | |
580 | * Show and set the arp targets. | |
581 | */ | |
43cb76d9 GKH |
582 | static ssize_t bonding_show_arp_targets(struct device *d, |
583 | struct device_attribute *attr, | |
584 | char *buf) | |
b76cdba9 MW |
585 | { |
586 | int i, res = 0; | |
43cb76d9 | 587 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
588 | |
589 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
590 | if (bond->params.arp_targets[i]) | |
63779436 HH |
591 | res += sprintf(buf + res, "%pI4 ", |
592 | &bond->params.arp_targets[i]); | |
b76cdba9 | 593 | } |
1dcdcd69 WF |
594 | if (res) |
595 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
596 | return res; |
597 | } | |
598 | ||
43cb76d9 GKH |
599 | static ssize_t bonding_store_arp_targets(struct device *d, |
600 | struct device_attribute *attr, | |
601 | const char *buf, size_t count) | |
b76cdba9 | 602 | { |
43cb76d9 | 603 | struct bonding *bond = to_bond(d); |
9caff1e7 | 604 | struct list_head *iter; |
8599b52e VF |
605 | struct slave *slave; |
606 | __be32 newtarget, *targets; | |
607 | unsigned long *targets_rx; | |
608 | int ind, i, j, ret = -EINVAL; | |
b76cdba9 | 609 | |
4d1ae5fb | 610 | if (!rtnl_trylock()) |
611 | return restart_syscall(); | |
612 | ||
b76cdba9 MW |
613 | targets = bond->params.arp_targets; |
614 | newtarget = in_aton(buf + 1); | |
615 | /* look for adds */ | |
616 | if (buf[0] == '+') { | |
d3bb52b0 | 617 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 618 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 619 | bond->dev->name, &newtarget); |
b76cdba9 MW |
620 | goto out; |
621 | } | |
87a7b84b VF |
622 | |
623 | if (bond_get_targets_ip(targets, newtarget) != -1) { /* dup */ | |
624 | pr_err("%s: ARP target %pI4 is already present\n", | |
625 | bond->dev->name, &newtarget); | |
626 | goto out; | |
b76cdba9 | 627 | } |
87a7b84b | 628 | |
8599b52e VF |
629 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ |
630 | if (ind == -1) { | |
a4aee5c8 | 631 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 | 632 | bond->dev->name); |
b76cdba9 MW |
633 | goto out; |
634 | } | |
635 | ||
87a7b84b VF |
636 | pr_info("%s: adding ARP target %pI4.\n", bond->dev->name, |
637 | &newtarget); | |
8599b52e VF |
638 | /* not to race with bond_arp_rcv */ |
639 | write_lock_bh(&bond->lock); | |
9caff1e7 | 640 | bond_for_each_slave(bond, slave, iter) |
8599b52e VF |
641 | slave->target_last_arp_rx[ind] = jiffies; |
642 | targets[ind] = newtarget; | |
643 | write_unlock_bh(&bond->lock); | |
3d632c3f | 644 | } else if (buf[0] == '-') { |
d3bb52b0 | 645 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 646 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 647 | bond->dev->name, &newtarget); |
b76cdba9 MW |
648 | goto out; |
649 | } | |
650 | ||
8599b52e VF |
651 | ind = bond_get_targets_ip(targets, newtarget); |
652 | if (ind == -1) { | |
653 | pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", | |
a4aee5c8 | 654 | bond->dev->name, &newtarget); |
b76cdba9 MW |
655 | goto out; |
656 | } | |
87a7b84b | 657 | |
8599b52e VF |
658 | if (ind == 0 && !targets[1] && bond->params.arp_interval) |
659 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
660 | bond->dev->name); | |
661 | ||
87a7b84b VF |
662 | pr_info("%s: removing ARP target %pI4.\n", bond->dev->name, |
663 | &newtarget); | |
8599b52e VF |
664 | |
665 | write_lock_bh(&bond->lock); | |
9caff1e7 | 666 | bond_for_each_slave(bond, slave, iter) { |
8599b52e VF |
667 | targets_rx = slave->target_last_arp_rx; |
668 | j = ind; | |
669 | for (; (j < BOND_MAX_ARP_TARGETS-1) && targets[j+1]; j++) | |
670 | targets_rx[j] = targets_rx[j+1]; | |
671 | targets_rx[j] = 0; | |
672 | } | |
673 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
87a7b84b VF |
674 | targets[i] = targets[i+1]; |
675 | targets[i] = 0; | |
8599b52e | 676 | write_unlock_bh(&bond->lock); |
3d632c3f | 677 | } else { |
a4aee5c8 JP |
678 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
679 | bond->dev->name); | |
b76cdba9 MW |
680 | ret = -EPERM; |
681 | goto out; | |
682 | } | |
683 | ||
87a7b84b | 684 | ret = count; |
b76cdba9 | 685 | out: |
4d1ae5fb | 686 | rtnl_unlock(); |
b76cdba9 MW |
687 | return ret; |
688 | } | |
43cb76d9 | 689 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
690 | |
691 | /* | |
692 | * Show and set the up and down delays. These must be multiples of the | |
693 | * MII monitoring value, and are stored internally as the multiplier. | |
694 | * Thus, we must translate to MS for the real world. | |
695 | */ | |
43cb76d9 GKH |
696 | static ssize_t bonding_show_downdelay(struct device *d, |
697 | struct device_attribute *attr, | |
698 | char *buf) | |
b76cdba9 | 699 | { |
43cb76d9 | 700 | struct bonding *bond = to_bond(d); |
b76cdba9 | 701 | |
7bd46508 | 702 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
703 | } |
704 | ||
43cb76d9 GKH |
705 | static ssize_t bonding_store_downdelay(struct device *d, |
706 | struct device_attribute *attr, | |
707 | const char *buf, size_t count) | |
b76cdba9 MW |
708 | { |
709 | int new_value, ret = count; | |
43cb76d9 | 710 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
711 | |
712 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 713 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
714 | bond->dev->name); |
715 | ret = -EPERM; | |
716 | goto out; | |
717 | } | |
718 | ||
719 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 720 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
721 | ret = -EINVAL; |
722 | goto out; | |
723 | } | |
724 | if (new_value < 0) { | |
a4aee5c8 | 725 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 726 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
727 | ret = -EINVAL; |
728 | goto out; | |
729 | } else { | |
730 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 731 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
732 | bond->dev->name, new_value, |
733 | bond->params.miimon, | |
734 | (new_value / bond->params.miimon) * | |
735 | bond->params.miimon); | |
b76cdba9 MW |
736 | } |
737 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
738 | pr_info("%s: Setting down delay to %d.\n", |
739 | bond->dev->name, | |
740 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
741 | |
742 | } | |
743 | ||
744 | out: | |
745 | return ret; | |
746 | } | |
3d632c3f SH |
747 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
748 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 749 | |
43cb76d9 GKH |
750 | static ssize_t bonding_show_updelay(struct device *d, |
751 | struct device_attribute *attr, | |
752 | char *buf) | |
b76cdba9 | 753 | { |
43cb76d9 | 754 | struct bonding *bond = to_bond(d); |
b76cdba9 | 755 | |
7bd46508 | 756 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
757 | |
758 | } | |
759 | ||
43cb76d9 GKH |
760 | static ssize_t bonding_store_updelay(struct device *d, |
761 | struct device_attribute *attr, | |
762 | const char *buf, size_t count) | |
b76cdba9 MW |
763 | { |
764 | int new_value, ret = count; | |
43cb76d9 | 765 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
766 | |
767 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 768 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
769 | bond->dev->name); |
770 | ret = -EPERM; | |
771 | goto out; | |
772 | } | |
773 | ||
774 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 775 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
776 | bond->dev->name); |
777 | ret = -EINVAL; | |
778 | goto out; | |
779 | } | |
780 | if (new_value < 0) { | |
1bc7db16 | 781 | pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n", |
782 | bond->dev->name, new_value, 0, INT_MAX); | |
b76cdba9 MW |
783 | ret = -EINVAL; |
784 | goto out; | |
785 | } else { | |
786 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 787 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
788 | bond->dev->name, new_value, |
789 | bond->params.miimon, | |
790 | (new_value / bond->params.miimon) * | |
791 | bond->params.miimon); | |
b76cdba9 MW |
792 | } |
793 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
794 | pr_info("%s: Setting up delay to %d.\n", |
795 | bond->dev->name, | |
796 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
797 | } |
798 | ||
799 | out: | |
800 | return ret; | |
801 | } | |
3d632c3f SH |
802 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
803 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
804 | |
805 | /* | |
806 | * Show and set the LACP interval. Interface must be down, and the mode | |
807 | * must be set to 802.3ad mode. | |
808 | */ | |
43cb76d9 GKH |
809 | static ssize_t bonding_show_lacp(struct device *d, |
810 | struct device_attribute *attr, | |
811 | char *buf) | |
b76cdba9 | 812 | { |
43cb76d9 | 813 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
814 | |
815 | return sprintf(buf, "%s %d\n", | |
816 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 817 | bond->params.lacp_fast); |
b76cdba9 MW |
818 | } |
819 | ||
43cb76d9 GKH |
820 | static ssize_t bonding_store_lacp(struct device *d, |
821 | struct device_attribute *attr, | |
822 | const char *buf, size_t count) | |
b76cdba9 | 823 | { |
43cb76d9 | 824 | struct bonding *bond = to_bond(d); |
c509316b | 825 | int new_value, ret = count; |
826 | ||
827 | if (!rtnl_trylock()) | |
828 | return restart_syscall(); | |
b76cdba9 MW |
829 | |
830 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 831 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
832 | bond->dev->name); |
833 | ret = -EPERM; | |
834 | goto out; | |
835 | } | |
836 | ||
837 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 838 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
839 | bond->dev->name); |
840 | ret = -EPERM; | |
841 | goto out; | |
842 | } | |
843 | ||
ece95f7f | 844 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
845 | |
846 | if ((new_value == 1) || (new_value == 0)) { | |
847 | bond->params.lacp_fast = new_value; | |
ba824a8b | 848 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 849 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
850 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
851 | new_value); | |
b76cdba9 | 852 | } else { |
a4aee5c8 | 853 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 854 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
855 | ret = -EINVAL; |
856 | } | |
857 | out: | |
c509316b | 858 | rtnl_unlock(); |
859 | ||
b76cdba9 MW |
860 | return ret; |
861 | } | |
3d632c3f SH |
862 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
863 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 864 | |
655f8919 | 865 | static ssize_t bonding_show_min_links(struct device *d, |
866 | struct device_attribute *attr, | |
867 | char *buf) | |
868 | { | |
869 | struct bonding *bond = to_bond(d); | |
870 | ||
871 | return sprintf(buf, "%d\n", bond->params.min_links); | |
872 | } | |
873 | ||
874 | static ssize_t bonding_store_min_links(struct device *d, | |
875 | struct device_attribute *attr, | |
876 | const char *buf, size_t count) | |
877 | { | |
878 | struct bonding *bond = to_bond(d); | |
879 | int ret; | |
880 | unsigned int new_value; | |
881 | ||
882 | ret = kstrtouint(buf, 0, &new_value); | |
883 | if (ret < 0) { | |
884 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
885 | bond->dev->name, buf); | |
886 | return ret; | |
887 | } | |
888 | ||
889 | pr_info("%s: Setting min links value to %u\n", | |
890 | bond->dev->name, new_value); | |
891 | bond->params.min_links = new_value; | |
892 | return count; | |
893 | } | |
894 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
895 | bonding_show_min_links, bonding_store_min_links); | |
896 | ||
fd989c83 JV |
897 | static ssize_t bonding_show_ad_select(struct device *d, |
898 | struct device_attribute *attr, | |
899 | char *buf) | |
900 | { | |
901 | struct bonding *bond = to_bond(d); | |
902 | ||
903 | return sprintf(buf, "%s %d\n", | |
904 | ad_select_tbl[bond->params.ad_select].modename, | |
905 | bond->params.ad_select); | |
906 | } | |
907 | ||
908 | ||
909 | static ssize_t bonding_store_ad_select(struct device *d, | |
910 | struct device_attribute *attr, | |
911 | const char *buf, size_t count) | |
912 | { | |
913 | int new_value, ret = count; | |
914 | struct bonding *bond = to_bond(d); | |
915 | ||
916 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
917 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
918 | bond->dev->name); | |
fd989c83 JV |
919 | ret = -EPERM; |
920 | goto out; | |
921 | } | |
922 | ||
923 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
924 | ||
925 | if (new_value != -1) { | |
926 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
927 | pr_info("%s: Setting ad_select to %s (%d).\n", |
928 | bond->dev->name, ad_select_tbl[new_value].modename, | |
929 | new_value); | |
fd989c83 | 930 | } else { |
a4aee5c8 | 931 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
932 | bond->dev->name, (int)strlen(buf) - 1, buf); |
933 | ret = -EINVAL; | |
934 | } | |
935 | out: | |
936 | return ret; | |
937 | } | |
3d632c3f SH |
938 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
939 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 940 | |
ad246c99 BH |
941 | /* |
942 | * Show and set the number of peer notifications to send after a failover event. | |
943 | */ | |
944 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
945 | struct device_attribute *attr, | |
946 | char *buf) | |
947 | { | |
948 | struct bonding *bond = to_bond(d); | |
949 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
950 | } | |
951 | ||
952 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
953 | struct device_attribute *attr, | |
954 | const char *buf, size_t count) | |
955 | { | |
956 | struct bonding *bond = to_bond(d); | |
957 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
958 | return err ? err : count; | |
959 | } | |
960 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
961 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
962 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
963 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
964 | ||
b76cdba9 MW |
965 | /* |
966 | * Show and set the MII monitor interval. There are two tricky bits | |
967 | * here. First, if MII monitoring is activated, then we must disable | |
968 | * ARP monitoring. Second, if the timer isn't running, we must | |
969 | * start it. | |
970 | */ | |
43cb76d9 GKH |
971 | static ssize_t bonding_show_miimon(struct device *d, |
972 | struct device_attribute *attr, | |
973 | char *buf) | |
b76cdba9 | 974 | { |
43cb76d9 | 975 | struct bonding *bond = to_bond(d); |
b76cdba9 | 976 | |
7bd46508 | 977 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
978 | } |
979 | ||
43cb76d9 GKH |
980 | static ssize_t bonding_store_miimon(struct device *d, |
981 | struct device_attribute *attr, | |
982 | const char *buf, size_t count) | |
b76cdba9 MW |
983 | { |
984 | int new_value, ret = count; | |
43cb76d9 | 985 | struct bonding *bond = to_bond(d); |
b76cdba9 | 986 | |
fbb0c41b | 987 | if (!rtnl_trylock()) |
988 | return restart_syscall(); | |
b76cdba9 | 989 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 990 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
991 | bond->dev->name); |
992 | ret = -EINVAL; | |
993 | goto out; | |
994 | } | |
995 | if (new_value < 0) { | |
a4aee5c8 | 996 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 997 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
998 | ret = -EINVAL; |
999 | goto out; | |
1bc7db16 | 1000 | } |
1001 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
1002 | bond->dev->name, new_value); | |
1003 | bond->params.miimon = new_value; | |
1004 | if (bond->params.updelay) | |
1005 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
1006 | bond->dev->name, | |
1007 | bond->params.updelay * bond->params.miimon); | |
1008 | if (bond->params.downdelay) | |
1009 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
1010 | bond->dev->name, | |
1011 | bond->params.downdelay * bond->params.miimon); | |
1012 | if (new_value && bond->params.arp_interval) { | |
1013 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", | |
1014 | bond->dev->name); | |
1015 | bond->params.arp_interval = 0; | |
1016 | if (bond->params.arp_validate) | |
1017 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
1018 | } | |
1019 | if (bond->dev->flags & IFF_UP) { | |
1020 | /* If the interface is up, we may need to fire off | |
1021 | * the MII timer. If the interface is down, the | |
1022 | * timer will get fired off when the open function | |
1023 | * is called. | |
1024 | */ | |
1025 | if (!new_value) { | |
1026 | cancel_delayed_work_sync(&bond->mii_work); | |
1027 | } else { | |
fbb0c41b | 1028 | cancel_delayed_work_sync(&bond->arp_work); |
1029 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
b76cdba9 MW |
1030 | } |
1031 | } | |
1032 | out: | |
fbb0c41b | 1033 | rtnl_unlock(); |
b76cdba9 MW |
1034 | return ret; |
1035 | } | |
3d632c3f SH |
1036 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1037 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1038 | |
1039 | /* | |
1040 | * Show and set the primary slave. The store function is much | |
1041 | * simpler than bonding_store_slaves function because it only needs to | |
1042 | * handle one interface name. | |
1043 | * The bond must be a mode that supports a primary for this be | |
1044 | * set. | |
1045 | */ | |
43cb76d9 GKH |
1046 | static ssize_t bonding_show_primary(struct device *d, |
1047 | struct device_attribute *attr, | |
1048 | char *buf) | |
b76cdba9 MW |
1049 | { |
1050 | int count = 0; | |
43cb76d9 | 1051 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1052 | |
1053 | if (bond->primary_slave) | |
7bd46508 | 1054 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1055 | |
1056 | return count; | |
1057 | } | |
1058 | ||
43cb76d9 GKH |
1059 | static ssize_t bonding_store_primary(struct device *d, |
1060 | struct device_attribute *attr, | |
1061 | const char *buf, size_t count) | |
b76cdba9 | 1062 | { |
43cb76d9 | 1063 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1064 | struct list_head *iter; |
f4bb2e9c | 1065 | char ifname[IFNAMSIZ]; |
dec1e90e | 1066 | struct slave *slave; |
b76cdba9 | 1067 | |
496a60cd EB |
1068 | if (!rtnl_trylock()) |
1069 | return restart_syscall(); | |
e843fa50 | 1070 | block_netpoll_tx(); |
e934dd78 JV |
1071 | read_lock(&bond->lock); |
1072 | write_lock_bh(&bond->curr_slave_lock); | |
1073 | ||
b76cdba9 | 1074 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1075 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1076 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1077 | goto out; |
1078 | } | |
b76cdba9 | 1079 | |
eb6e98a1 | 1080 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1081 | |
f4bb2e9c AG |
1082 | /* check to see if we are clearing primary */ |
1083 | if (!strlen(ifname) || buf[0] == '\n') { | |
1084 | pr_info("%s: Setting primary slave to None.\n", | |
1085 | bond->dev->name); | |
1086 | bond->primary_slave = NULL; | |
eb492f74 | 1087 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
f4bb2e9c AG |
1088 | bond_select_active_slave(bond); |
1089 | goto out; | |
1090 | } | |
1091 | ||
9caff1e7 | 1092 | bond_for_each_slave(bond, slave, iter) { |
f4bb2e9c AG |
1093 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
1094 | pr_info("%s: Setting %s as primary slave.\n", | |
1095 | bond->dev->name, slave->dev->name); | |
1096 | bond->primary_slave = slave; | |
1097 | strcpy(bond->params.primary, slave->dev->name); | |
1098 | bond_select_active_slave(bond); | |
1099 | goto out; | |
b76cdba9 MW |
1100 | } |
1101 | } | |
f4bb2e9c | 1102 | |
8a93664d WP |
1103 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1104 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1105 | ||
1106 | pr_info("%s: Recording %s as primary, " | |
1107 | "but it has not been enslaved to %s yet.\n", | |
1108 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1109 | out: |
e934dd78 JV |
1110 | write_unlock_bh(&bond->curr_slave_lock); |
1111 | read_unlock(&bond->lock); | |
e843fa50 | 1112 | unblock_netpoll_tx(); |
6603a6f2 JV |
1113 | rtnl_unlock(); |
1114 | ||
b76cdba9 MW |
1115 | return count; |
1116 | } | |
3d632c3f SH |
1117 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1118 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1119 | |
a549952a JP |
1120 | /* |
1121 | * Show and set the primary_reselect flag. | |
1122 | */ | |
1123 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1124 | struct device_attribute *attr, | |
1125 | char *buf) | |
1126 | { | |
1127 | struct bonding *bond = to_bond(d); | |
1128 | ||
1129 | return sprintf(buf, "%s %d\n", | |
1130 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1131 | bond->params.primary_reselect); | |
1132 | } | |
1133 | ||
1134 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1135 | struct device_attribute *attr, | |
1136 | const char *buf, size_t count) | |
1137 | { | |
1138 | int new_value, ret = count; | |
1139 | struct bonding *bond = to_bond(d); | |
1140 | ||
1141 | if (!rtnl_trylock()) | |
1142 | return restart_syscall(); | |
1143 | ||
1144 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1145 | if (new_value < 0) { | |
a4aee5c8 | 1146 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1147 | bond->dev->name, |
1148 | (int) strlen(buf) - 1, buf); | |
1149 | ret = -EINVAL; | |
1150 | goto out; | |
1151 | } | |
1152 | ||
1153 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1154 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1155 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1156 | new_value); | |
1157 | ||
e843fa50 | 1158 | block_netpoll_tx(); |
a549952a JP |
1159 | read_lock(&bond->lock); |
1160 | write_lock_bh(&bond->curr_slave_lock); | |
1161 | bond_select_active_slave(bond); | |
1162 | write_unlock_bh(&bond->curr_slave_lock); | |
1163 | read_unlock(&bond->lock); | |
e843fa50 | 1164 | unblock_netpoll_tx(); |
a549952a JP |
1165 | out: |
1166 | rtnl_unlock(); | |
1167 | return ret; | |
1168 | } | |
1169 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1170 | bonding_show_primary_reselect, | |
1171 | bonding_store_primary_reselect); | |
1172 | ||
b76cdba9 MW |
1173 | /* |
1174 | * Show and set the use_carrier flag. | |
1175 | */ | |
43cb76d9 GKH |
1176 | static ssize_t bonding_show_carrier(struct device *d, |
1177 | struct device_attribute *attr, | |
1178 | char *buf) | |
b76cdba9 | 1179 | { |
43cb76d9 | 1180 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1181 | |
7bd46508 | 1182 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1183 | } |
1184 | ||
43cb76d9 GKH |
1185 | static ssize_t bonding_store_carrier(struct device *d, |
1186 | struct device_attribute *attr, | |
1187 | const char *buf, size_t count) | |
b76cdba9 MW |
1188 | { |
1189 | int new_value, ret = count; | |
43cb76d9 | 1190 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1191 | |
1192 | ||
1193 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1194 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1195 | bond->dev->name); |
1196 | ret = -EINVAL; | |
1197 | goto out; | |
1198 | } | |
1199 | if ((new_value == 0) || (new_value == 1)) { | |
1200 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1201 | pr_info("%s: Setting use_carrier to %d.\n", |
1202 | bond->dev->name, new_value); | |
b76cdba9 | 1203 | } else { |
a4aee5c8 JP |
1204 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1205 | bond->dev->name, new_value); | |
b76cdba9 MW |
1206 | } |
1207 | out: | |
672bda33 | 1208 | return ret; |
b76cdba9 | 1209 | } |
3d632c3f SH |
1210 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1211 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1212 | |
1213 | ||
1214 | /* | |
1215 | * Show and set currently active_slave. | |
1216 | */ | |
43cb76d9 GKH |
1217 | static ssize_t bonding_show_active_slave(struct device *d, |
1218 | struct device_attribute *attr, | |
1219 | char *buf) | |
b76cdba9 | 1220 | { |
43cb76d9 | 1221 | struct bonding *bond = to_bond(d); |
278b2083 | 1222 | struct slave *curr; |
16cd0160 | 1223 | int count = 0; |
b76cdba9 | 1224 | |
278b2083 | 1225 | rcu_read_lock(); |
1226 | curr = rcu_dereference(bond->curr_active_slave); | |
b76cdba9 | 1227 | if (USES_PRIMARY(bond->params.mode) && curr) |
7bd46508 | 1228 | count = sprintf(buf, "%s\n", curr->dev->name); |
278b2083 | 1229 | rcu_read_unlock(); |
1230 | ||
b76cdba9 MW |
1231 | return count; |
1232 | } | |
1233 | ||
43cb76d9 GKH |
1234 | static ssize_t bonding_store_active_slave(struct device *d, |
1235 | struct device_attribute *attr, | |
1236 | const char *buf, size_t count) | |
b76cdba9 | 1237 | { |
d9e32b21 | 1238 | int ret; |
43cb76d9 | 1239 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1240 | char ifname[IFNAMSIZ]; |
d9e32b21 | 1241 | struct net_device *dev; |
b76cdba9 | 1242 | |
496a60cd EB |
1243 | if (!rtnl_trylock()) |
1244 | return restart_syscall(); | |
e843fa50 | 1245 | |
c84e1590 | 1246 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c | 1247 | if (!strlen(ifname) || buf[0] == '\n') { |
d9e32b21 JP |
1248 | dev = NULL; |
1249 | } else { | |
1250 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
1251 | if (!dev) { | |
1252 | ret = -ENODEV; | |
1253 | goto out; | |
b76cdba9 | 1254 | } |
b76cdba9 | 1255 | } |
f4bb2e9c | 1256 | |
d9e32b21 JP |
1257 | ret = bond_option_active_slave_set(bond, dev); |
1258 | if (!ret) | |
1259 | ret = count; | |
e843fa50 | 1260 | |
d9e32b21 | 1261 | out: |
6603a6f2 JV |
1262 | rtnl_unlock(); |
1263 | ||
d9e32b21 | 1264 | return ret; |
b76cdba9 MW |
1265 | |
1266 | } | |
3d632c3f SH |
1267 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1268 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1269 | |
1270 | ||
1271 | /* | |
1272 | * Show link status of the bond interface. | |
1273 | */ | |
43cb76d9 GKH |
1274 | static ssize_t bonding_show_mii_status(struct device *d, |
1275 | struct device_attribute *attr, | |
1276 | char *buf) | |
b76cdba9 | 1277 | { |
43cb76d9 | 1278 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1279 | |
278b2083 | 1280 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 1281 | } |
43cb76d9 | 1282 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1283 | |
b76cdba9 MW |
1284 | /* |
1285 | * Show current 802.3ad aggregator ID. | |
1286 | */ | |
43cb76d9 GKH |
1287 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1288 | struct device_attribute *attr, | |
1289 | char *buf) | |
b76cdba9 MW |
1290 | { |
1291 | int count = 0; | |
43cb76d9 | 1292 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1293 | |
1294 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1295 | struct ad_info ad_info; | |
3d632c3f | 1296 | count = sprintf(buf, "%d\n", |
318debd8 | 1297 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1298 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1299 | } |
b76cdba9 MW |
1300 | |
1301 | return count; | |
1302 | } | |
43cb76d9 | 1303 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1304 | |
1305 | ||
1306 | /* | |
1307 | * Show number of active 802.3ad ports. | |
1308 | */ | |
43cb76d9 GKH |
1309 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1310 | struct device_attribute *attr, | |
1311 | char *buf) | |
b76cdba9 MW |
1312 | { |
1313 | int count = 0; | |
43cb76d9 | 1314 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1315 | |
1316 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1317 | struct ad_info ad_info; | |
3d632c3f | 1318 | count = sprintf(buf, "%d\n", |
318debd8 | 1319 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1320 | ? 0 : ad_info.ports); |
b76cdba9 | 1321 | } |
b76cdba9 MW |
1322 | |
1323 | return count; | |
1324 | } | |
43cb76d9 | 1325 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1326 | |
1327 | ||
1328 | /* | |
1329 | * Show current 802.3ad actor key. | |
1330 | */ | |
43cb76d9 GKH |
1331 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1332 | struct device_attribute *attr, | |
1333 | char *buf) | |
b76cdba9 MW |
1334 | { |
1335 | int count = 0; | |
43cb76d9 | 1336 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1337 | |
1338 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1339 | struct ad_info ad_info; | |
3d632c3f | 1340 | count = sprintf(buf, "%d\n", |
318debd8 | 1341 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1342 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1343 | } |
b76cdba9 MW |
1344 | |
1345 | return count; | |
1346 | } | |
43cb76d9 | 1347 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1348 | |
1349 | ||
1350 | /* | |
1351 | * Show current 802.3ad partner key. | |
1352 | */ | |
43cb76d9 GKH |
1353 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1354 | struct device_attribute *attr, | |
1355 | char *buf) | |
b76cdba9 MW |
1356 | { |
1357 | int count = 0; | |
43cb76d9 | 1358 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1359 | |
1360 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1361 | struct ad_info ad_info; | |
3d632c3f | 1362 | count = sprintf(buf, "%d\n", |
318debd8 | 1363 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1364 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1365 | } |
b76cdba9 MW |
1366 | |
1367 | return count; | |
1368 | } | |
43cb76d9 | 1369 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1370 | |
1371 | ||
1372 | /* | |
1373 | * Show current 802.3ad partner mac. | |
1374 | */ | |
43cb76d9 GKH |
1375 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1376 | struct device_attribute *attr, | |
1377 | char *buf) | |
b76cdba9 MW |
1378 | { |
1379 | int count = 0; | |
43cb76d9 | 1380 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1381 | |
1382 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1383 | struct ad_info ad_info; | |
3d632c3f | 1384 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1385 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1386 | } |
b76cdba9 MW |
1387 | |
1388 | return count; | |
1389 | } | |
43cb76d9 | 1390 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1391 | |
bb1d9123 AG |
1392 | /* |
1393 | * Show the queue_ids of the slaves in the current bond. | |
1394 | */ | |
1395 | static ssize_t bonding_show_queue_id(struct device *d, | |
1396 | struct device_attribute *attr, | |
1397 | char *buf) | |
1398 | { | |
bb1d9123 | 1399 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1400 | struct list_head *iter; |
dec1e90e | 1401 | struct slave *slave; |
1402 | int res = 0; | |
bb1d9123 AG |
1403 | |
1404 | if (!rtnl_trylock()) | |
1405 | return restart_syscall(); | |
1406 | ||
9caff1e7 | 1407 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1408 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1409 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1410 | if ((PAGE_SIZE - res) > 10) |
1411 | res = PAGE_SIZE - 10; | |
1412 | res += sprintf(buf + res, "++more++ "); | |
1413 | break; | |
1414 | } | |
1415 | res += sprintf(buf + res, "%s:%d ", | |
1416 | slave->dev->name, slave->queue_id); | |
1417 | } | |
bb1d9123 AG |
1418 | if (res) |
1419 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1420 | |
bb1d9123 | 1421 | rtnl_unlock(); |
dec1e90e | 1422 | |
bb1d9123 AG |
1423 | return res; |
1424 | } | |
1425 | ||
1426 | /* | |
1427 | * Set the queue_ids of the slaves in the current bond. The bond | |
1428 | * interface must be enslaved for this to work. | |
1429 | */ | |
1430 | static ssize_t bonding_store_queue_id(struct device *d, | |
1431 | struct device_attribute *attr, | |
1432 | const char *buffer, size_t count) | |
1433 | { | |
1434 | struct slave *slave, *update_slave; | |
1435 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1436 | struct list_head *iter; |
bb1d9123 | 1437 | u16 qid; |
dec1e90e | 1438 | int ret = count; |
bb1d9123 AG |
1439 | char *delim; |
1440 | struct net_device *sdev = NULL; | |
1441 | ||
1442 | if (!rtnl_trylock()) | |
1443 | return restart_syscall(); | |
1444 | ||
1445 | /* delim will point to queue id if successful */ | |
1446 | delim = strchr(buffer, ':'); | |
1447 | if (!delim) | |
1448 | goto err_no_cmd; | |
1449 | ||
1450 | /* | |
1451 | * Terminate string that points to device name and bump it | |
1452 | * up one, so we can read the queue id there. | |
1453 | */ | |
1454 | *delim = '\0'; | |
1455 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1456 | goto err_no_cmd; | |
1457 | ||
1458 | /* Check buffer length, valid ifname and queue id */ | |
1459 | if (strlen(buffer) > IFNAMSIZ || | |
1460 | !dev_valid_name(buffer) || | |
8a540ff9 | 1461 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1462 | goto err_no_cmd; |
1463 | ||
1464 | /* Get the pointer to that interface if it exists */ | |
1465 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1466 | if (!sdev) | |
1467 | goto err_no_cmd; | |
1468 | ||
bb1d9123 AG |
1469 | /* Search for thes slave and check for duplicate qids */ |
1470 | update_slave = NULL; | |
9caff1e7 | 1471 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1472 | if (sdev == slave->dev) |
1473 | /* | |
1474 | * We don't need to check the matching | |
1475 | * slave for dups, since we're overwriting it | |
1476 | */ | |
1477 | update_slave = slave; | |
1478 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1479 | goto err_no_cmd; |
bb1d9123 AG |
1480 | } |
1481 | } | |
1482 | ||
1483 | if (!update_slave) | |
4d1ae5fb | 1484 | goto err_no_cmd; |
bb1d9123 AG |
1485 | |
1486 | /* Actually set the qids for the slave */ | |
1487 | update_slave->queue_id = qid; | |
1488 | ||
bb1d9123 AG |
1489 | out: |
1490 | rtnl_unlock(); | |
1491 | return ret; | |
1492 | ||
bb1d9123 AG |
1493 | err_no_cmd: |
1494 | pr_info("invalid input for queue_id set for %s.\n", | |
1495 | bond->dev->name); | |
1496 | ret = -EPERM; | |
1497 | goto out; | |
1498 | } | |
1499 | ||
1500 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1501 | bonding_store_queue_id); | |
1502 | ||
1503 | ||
ebd8e497 AG |
1504 | /* |
1505 | * Show and set the all_slaves_active flag. | |
1506 | */ | |
1507 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1508 | struct device_attribute *attr, | |
1509 | char *buf) | |
1510 | { | |
1511 | struct bonding *bond = to_bond(d); | |
1512 | ||
1513 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1514 | } | |
1515 | ||
1516 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1517 | struct device_attribute *attr, | |
1518 | const char *buf, size_t count) | |
1519 | { | |
ebd8e497 | 1520 | struct bonding *bond = to_bond(d); |
dec1e90e | 1521 | int new_value, ret = count; |
9caff1e7 | 1522 | struct list_head *iter; |
ebd8e497 AG |
1523 | struct slave *slave; |
1524 | ||
4d1ae5fb | 1525 | if (!rtnl_trylock()) |
1526 | return restart_syscall(); | |
1527 | ||
ebd8e497 AG |
1528 | if (sscanf(buf, "%d", &new_value) != 1) { |
1529 | pr_err("%s: no all_slaves_active value specified.\n", | |
1530 | bond->dev->name); | |
1531 | ret = -EINVAL; | |
1532 | goto out; | |
1533 | } | |
1534 | ||
1535 | if (new_value == bond->params.all_slaves_active) | |
1536 | goto out; | |
1537 | ||
1538 | if ((new_value == 0) || (new_value == 1)) { | |
1539 | bond->params.all_slaves_active = new_value; | |
1540 | } else { | |
1541 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1542 | bond->dev->name, new_value); | |
1543 | ret = -EINVAL; | |
1544 | goto out; | |
1545 | } | |
b76cdba9 | 1546 | |
9caff1e7 | 1547 | bond_for_each_slave(bond, slave, iter) { |
e30bc066 | 1548 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1549 | if (new_value) |
2d7011ca | 1550 | slave->inactive = 0; |
ebd8e497 | 1551 | else |
2d7011ca | 1552 | slave->inactive = 1; |
ebd8e497 AG |
1553 | } |
1554 | } | |
1555 | out: | |
4d1ae5fb | 1556 | rtnl_unlock(); |
672bda33 | 1557 | return ret; |
ebd8e497 AG |
1558 | } |
1559 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1560 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1561 | |
c2952c31 FL |
1562 | /* |
1563 | * Show and set the number of IGMP membership reports to send on link failure | |
1564 | */ | |
1565 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1566 | struct device_attribute *attr, |
1567 | char *buf) | |
c2952c31 FL |
1568 | { |
1569 | struct bonding *bond = to_bond(d); | |
1570 | ||
1571 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1572 | } | |
1573 | ||
1574 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1575 | struct device_attribute *attr, |
1576 | const char *buf, size_t count) | |
c2952c31 FL |
1577 | { |
1578 | int new_value, ret = count; | |
1579 | struct bonding *bond = to_bond(d); | |
1580 | ||
1581 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1582 | pr_err("%s: no resend_igmp value specified.\n", | |
1583 | bond->dev->name); | |
1584 | ret = -EINVAL; | |
1585 | goto out; | |
1586 | } | |
1587 | ||
94265cf5 | 1588 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1589 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1590 | bond->dev->name, new_value); | |
1591 | ret = -EINVAL; | |
1592 | goto out; | |
1593 | } | |
1594 | ||
1595 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1596 | bond->dev->name, new_value); | |
1597 | bond->params.resend_igmp = new_value; | |
1598 | out: | |
1599 | return ret; | |
1600 | } | |
1601 | ||
1602 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1603 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1604 | ||
7eacd038 NH |
1605 | |
1606 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1607 | struct device_attribute *attr, | |
1608 | char *buf) | |
1609 | { | |
1610 | struct bonding *bond = to_bond(d); | |
1611 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1612 | } | |
1613 | ||
1614 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1615 | struct device_attribute *attr, | |
1616 | const char *buf, size_t count) | |
1617 | { | |
1618 | struct bonding *bond = to_bond(d); | |
1619 | int new_value, ret = count; | |
1620 | ||
1621 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1622 | pr_err("%s: no lp interval value specified.\n", | |
1623 | bond->dev->name); | |
1624 | ret = -EINVAL; | |
1625 | goto out; | |
1626 | } | |
1627 | ||
1628 | if (new_value <= 0) { | |
1629 | pr_err ("%s: lp_interval must be between 1 and %d\n", | |
1630 | bond->dev->name, INT_MAX); | |
1631 | ret = -EINVAL; | |
1632 | goto out; | |
1633 | } | |
1634 | ||
1635 | bond->params.lp_interval = new_value; | |
1636 | out: | |
1637 | return ret; | |
1638 | } | |
1639 | ||
1640 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1641 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1642 | ||
b76cdba9 | 1643 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1644 | &dev_attr_slaves.attr, |
1645 | &dev_attr_mode.attr, | |
dd957c57 | 1646 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1647 | &dev_attr_arp_validate.attr, |
8599b52e | 1648 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1649 | &dev_attr_arp_interval.attr, |
1650 | &dev_attr_arp_ip_target.attr, | |
1651 | &dev_attr_downdelay.attr, | |
1652 | &dev_attr_updelay.attr, | |
1653 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1654 | &dev_attr_ad_select.attr, |
43cb76d9 | 1655 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1656 | &dev_attr_num_grat_arp.attr, |
1657 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1658 | &dev_attr_miimon.attr, |
1659 | &dev_attr_primary.attr, | |
a549952a | 1660 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1661 | &dev_attr_use_carrier.attr, |
1662 | &dev_attr_active_slave.attr, | |
1663 | &dev_attr_mii_status.attr, | |
1664 | &dev_attr_ad_aggregator.attr, | |
1665 | &dev_attr_ad_num_ports.attr, | |
1666 | &dev_attr_ad_actor_key.attr, | |
1667 | &dev_attr_ad_partner_key.attr, | |
1668 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1669 | &dev_attr_queue_id.attr, |
ebd8e497 | 1670 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1671 | &dev_attr_resend_igmp.attr, |
655f8919 | 1672 | &dev_attr_min_links.attr, |
7eacd038 | 1673 | &dev_attr_lp_interval.attr, |
b76cdba9 MW |
1674 | NULL, |
1675 | }; | |
1676 | ||
1677 | static struct attribute_group bonding_group = { | |
1678 | .name = "bonding", | |
1679 | .attrs = per_bond_attrs, | |
1680 | }; | |
1681 | ||
1682 | /* | |
1683 | * Initialize sysfs. This sets up the bonding_masters file in | |
1684 | * /sys/class/net. | |
1685 | */ | |
4c22400a | 1686 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1687 | { |
b8a9787e | 1688 | int ret; |
b76cdba9 | 1689 | |
4c22400a | 1690 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1691 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a EB |
1692 | |
1693 | ret = netdev_class_create_file(&bn->class_attr_bonding_masters); | |
877cbd36 JV |
1694 | /* |
1695 | * Permit multiple loads of the module by ignoring failures to | |
1696 | * create the bonding_masters sysfs file. Bonding devices | |
1697 | * created by second or subsequent loads of the module will | |
1698 | * not be listed in, or controllable by, bonding_masters, but | |
1699 | * will have the usual "bonding" sysfs directory. | |
1700 | * | |
1701 | * This is done to preserve backwards compatibility for | |
1702 | * initscripts/sysconfig, which load bonding multiple times to | |
1703 | * configure multiple bonding devices. | |
1704 | */ | |
1705 | if (ret == -EEXIST) { | |
38d2f38b | 1706 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1707 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1708 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1709 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1710 | class_attr_bonding_masters.attr.name); |
130aa61a | 1711 | ret = 0; |
877cbd36 | 1712 | } |
b76cdba9 MW |
1713 | |
1714 | return ret; | |
1715 | ||
1716 | } | |
1717 | ||
1718 | /* | |
1719 | * Remove /sys/class/net/bonding_masters. | |
1720 | */ | |
4c22400a | 1721 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1722 | { |
4c22400a | 1723 | netdev_class_remove_file(&bn->class_attr_bonding_masters); |
b76cdba9 MW |
1724 | } |
1725 | ||
1726 | /* | |
1727 | * Initialize sysfs for each bond. This sets up and registers | |
1728 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1729 | */ | |
6151b3d4 | 1730 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1731 | { |
6151b3d4 | 1732 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1733 | } |
1734 |