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> | |
73958329 | 43 | #include <linux/reciprocal_div.h> |
b76cdba9 | 44 | |
b76cdba9 | 45 | #include "bonding.h" |
5a03cdb7 | 46 | |
3d632c3f | 47 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 48 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 49 | |
b76cdba9 MW |
50 | /* |
51 | * "show" function for the bond_masters attribute. | |
52 | * The class parameter is ignored. | |
53 | */ | |
28812fe1 AK |
54 | static ssize_t bonding_show_bonds(struct class *cls, |
55 | struct class_attribute *attr, | |
56 | char *buf) | |
b76cdba9 | 57 | { |
4c22400a EB |
58 | struct bond_net *bn = |
59 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
60 | int res = 0; |
61 | struct bonding *bond; | |
62 | ||
7e083840 | 63 | rtnl_lock(); |
b76cdba9 | 64 | |
ec87fd3b | 65 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
66 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
67 | /* not enough space for another interface name */ | |
68 | if ((PAGE_SIZE - res) > 10) | |
69 | res = PAGE_SIZE - 10; | |
b8843665 | 70 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
71 | break; |
72 | } | |
b8843665 | 73 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 74 | } |
1dcdcd69 WF |
75 | if (res) |
76 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
77 | |
78 | rtnl_unlock(); | |
b76cdba9 MW |
79 | return res; |
80 | } | |
81 | ||
4c22400a | 82 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
83 | { |
84 | struct bonding *bond; | |
85 | ||
ec87fd3b | 86 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
87 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
88 | return bond->dev; | |
89 | } | |
90 | return NULL; | |
91 | } | |
92 | ||
b76cdba9 MW |
93 | /* |
94 | * "store" function for the bond_masters attribute. This is what | |
95 | * creates and deletes entire bonds. | |
96 | * | |
97 | * The class parameter is ignored. | |
98 | * | |
99 | */ | |
100 | ||
3d632c3f | 101 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 102 | struct class_attribute *attr, |
3d632c3f | 103 | const char *buffer, size_t count) |
b76cdba9 | 104 | { |
4c22400a EB |
105 | struct bond_net *bn = |
106 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
107 | char command[IFNAMSIZ + 1] = {0, }; |
108 | char *ifname; | |
027ea041 | 109 | int rv, res = count; |
b76cdba9 | 110 | |
b76cdba9 MW |
111 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
112 | ifname = command + 1; | |
113 | if ((strlen(command) <= 1) || | |
114 | !dev_valid_name(ifname)) | |
115 | goto err_no_cmd; | |
116 | ||
117 | if (command[0] == '+') { | |
a4aee5c8 | 118 | pr_info("%s is being created...\n", ifname); |
4c22400a | 119 | rv = bond_create(bn->net, ifname); |
027ea041 | 120 | if (rv) { |
5f86cad1 PO |
121 | if (rv == -EEXIST) |
122 | pr_info("%s already exists.\n", ifname); | |
123 | else | |
124 | pr_info("%s creation failed.\n", ifname); | |
027ea041 | 125 | res = rv; |
b76cdba9 | 126 | } |
373500db SH |
127 | } else if (command[0] == '-') { |
128 | struct net_device *bond_dev; | |
b76cdba9 | 129 | |
027ea041 | 130 | rtnl_lock(); |
4c22400a | 131 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 132 | if (bond_dev) { |
a4aee5c8 | 133 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
134 | unregister_netdevice(bond_dev); |
135 | } else { | |
a4aee5c8 | 136 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
137 | res = -ENODEV; |
138 | } | |
139 | rtnl_unlock(); | |
140 | } else | |
141 | goto err_no_cmd; | |
027ea041 | 142 | |
373500db SH |
143 | /* Always return either count or an error. If you return 0, you'll |
144 | * get called forever, which is bad. | |
145 | */ | |
146 | return res; | |
b76cdba9 MW |
147 | |
148 | err_no_cmd: | |
a4aee5c8 | 149 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 150 | return -EPERM; |
b76cdba9 | 151 | } |
373500db | 152 | |
b76cdba9 | 153 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
154 | static const struct class_attribute class_attr_bonding_masters = { |
155 | .attr = { | |
156 | .name = "bonding_masters", | |
157 | .mode = S_IWUSR | S_IRUGO, | |
158 | }, | |
159 | .show = bonding_show_bonds, | |
160 | .store = bonding_store_bonds, | |
4c22400a | 161 | }; |
b76cdba9 | 162 | |
b76cdba9 MW |
163 | /* |
164 | * Show the slaves in the current bond. | |
165 | */ | |
43cb76d9 GKH |
166 | static ssize_t bonding_show_slaves(struct device *d, |
167 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 168 | { |
43cb76d9 | 169 | struct bonding *bond = to_bond(d); |
9caff1e7 | 170 | struct list_head *iter; |
dec1e90e | 171 | struct slave *slave; |
172 | int res = 0; | |
b76cdba9 | 173 | |
4d1ae5fb | 174 | if (!rtnl_trylock()) |
175 | return restart_syscall(); | |
176 | ||
9caff1e7 | 177 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
178 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
179 | /* not enough space for another interface name */ | |
180 | if ((PAGE_SIZE - res) > 10) | |
181 | res = PAGE_SIZE - 10; | |
7bd46508 | 182 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
183 | break; |
184 | } | |
185 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
186 | } | |
4d1ae5fb | 187 | |
188 | rtnl_unlock(); | |
189 | ||
1dcdcd69 WF |
190 | if (res) |
191 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 192 | |
b76cdba9 MW |
193 | return res; |
194 | } | |
195 | ||
196 | /* | |
d6641ccf | 197 | * Set the slaves in the current bond. |
f9f3545e JP |
198 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
199 | * All hard work should be done there. | |
b76cdba9 | 200 | */ |
43cb76d9 GKH |
201 | static ssize_t bonding_store_slaves(struct device *d, |
202 | struct device_attribute *attr, | |
203 | const char *buffer, size_t count) | |
b76cdba9 MW |
204 | { |
205 | char command[IFNAMSIZ + 1] = { 0, }; | |
206 | char *ifname; | |
f9f3545e JP |
207 | int res, ret = count; |
208 | struct net_device *dev; | |
43cb76d9 | 209 | struct bonding *bond = to_bond(d); |
b76cdba9 | 210 | |
496a60cd EB |
211 | if (!rtnl_trylock()) |
212 | return restart_syscall(); | |
027ea041 | 213 | |
b76cdba9 MW |
214 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
215 | ifname = command + 1; | |
216 | if ((strlen(command) <= 1) || | |
217 | !dev_valid_name(ifname)) | |
218 | goto err_no_cmd; | |
219 | ||
f9f3545e JP |
220 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
221 | if (!dev) { | |
222 | pr_info("%s: Interface %s does not exist!\n", | |
223 | bond->dev->name, ifname); | |
224 | ret = -ENODEV; | |
225 | goto out; | |
226 | } | |
b76cdba9 | 227 | |
f9f3545e JP |
228 | switch (command[0]) { |
229 | case '+': | |
230 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 231 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 232 | break; |
3d632c3f | 233 | |
f9f3545e JP |
234 | case '-': |
235 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
236 | res = bond_release(bond->dev, dev); | |
237 | break; | |
b76cdba9 | 238 | |
f9f3545e JP |
239 | default: |
240 | goto err_no_cmd; | |
b76cdba9 MW |
241 | } |
242 | ||
f9f3545e JP |
243 | if (res) |
244 | ret = res; | |
245 | goto out; | |
246 | ||
b76cdba9 | 247 | err_no_cmd: |
a4aee5c8 JP |
248 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
249 | bond->dev->name); | |
b76cdba9 MW |
250 | ret = -EPERM; |
251 | ||
252 | out: | |
027ea041 | 253 | rtnl_unlock(); |
b76cdba9 MW |
254 | return ret; |
255 | } | |
256 | ||
3d632c3f SH |
257 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
258 | bonding_store_slaves); | |
b76cdba9 MW |
259 | |
260 | /* | |
261 | * Show and set the bonding mode. The bond interface must be down to | |
262 | * change the mode. | |
263 | */ | |
43cb76d9 GKH |
264 | static ssize_t bonding_show_mode(struct device *d, |
265 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 266 | { |
43cb76d9 | 267 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
268 | |
269 | return sprintf(buf, "%s %d\n", | |
270 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 271 | bond->params.mode); |
b76cdba9 MW |
272 | } |
273 | ||
43cb76d9 GKH |
274 | static ssize_t bonding_store_mode(struct device *d, |
275 | struct device_attribute *attr, | |
276 | const char *buf, size_t count) | |
b76cdba9 | 277 | { |
72be35fe | 278 | int new_value, ret; |
43cb76d9 | 279 | struct bonding *bond = to_bond(d); |
b76cdba9 | 280 | |
ece95f7f | 281 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 282 | if (new_value < 0) { |
a4aee5c8 JP |
283 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
284 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
72be35fe | 285 | return -EINVAL; |
c5cb002f | 286 | } |
72be35fe JP |
287 | if (!rtnl_trylock()) |
288 | return restart_syscall(); | |
289 | ||
290 | ret = bond_option_mode_set(bond, new_value); | |
291 | if (!ret) { | |
292 | pr_info("%s: setting mode to %s (%d).\n", | |
293 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
294 | new_value); | |
295 | ret = count; | |
c5cb002f | 296 | } |
8f903c70 | 297 | |
ea6836dd | 298 | rtnl_unlock(); |
b76cdba9 MW |
299 | return ret; |
300 | } | |
3d632c3f SH |
301 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
302 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
303 | |
304 | /* | |
3d632c3f | 305 | * Show and set the bonding transmit hash method. |
b76cdba9 | 306 | */ |
43cb76d9 GKH |
307 | static ssize_t bonding_show_xmit_hash(struct device *d, |
308 | struct device_attribute *attr, | |
309 | char *buf) | |
b76cdba9 | 310 | { |
43cb76d9 | 311 | struct bonding *bond = to_bond(d); |
b76cdba9 | 312 | |
8e4b9329 WF |
313 | return sprintf(buf, "%s %d\n", |
314 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
315 | bond->params.xmit_policy); | |
b76cdba9 MW |
316 | } |
317 | ||
43cb76d9 GKH |
318 | static ssize_t bonding_store_xmit_hash(struct device *d, |
319 | struct device_attribute *attr, | |
320 | const char *buf, size_t count) | |
b76cdba9 MW |
321 | { |
322 | int new_value, ret = count; | |
43cb76d9 | 323 | struct bonding *bond = to_bond(d); |
b76cdba9 | 324 | |
ece95f7f | 325 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 326 | if (new_value < 0) { |
a4aee5c8 | 327 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
328 | bond->dev->name, |
329 | (int)strlen(buf) - 1, buf); | |
330 | ret = -EINVAL; | |
b76cdba9 MW |
331 | } else { |
332 | bond->params.xmit_policy = new_value; | |
a4aee5c8 | 333 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
334 | bond->dev->name, |
335 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 | 336 | } |
53edee2c | 337 | |
b76cdba9 MW |
338 | return ret; |
339 | } | |
3d632c3f SH |
340 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
341 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 342 | |
f5b2b966 JV |
343 | /* |
344 | * Show and set arp_validate. | |
345 | */ | |
43cb76d9 GKH |
346 | static ssize_t bonding_show_arp_validate(struct device *d, |
347 | struct device_attribute *attr, | |
348 | char *buf) | |
f5b2b966 | 349 | { |
43cb76d9 | 350 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
351 | |
352 | return sprintf(buf, "%s %d\n", | |
353 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 354 | bond->params.arp_validate); |
f5b2b966 JV |
355 | } |
356 | ||
43cb76d9 GKH |
357 | static ssize_t bonding_store_arp_validate(struct device *d, |
358 | struct device_attribute *attr, | |
359 | const char *buf, size_t count) | |
f5b2b966 | 360 | { |
43cb76d9 | 361 | struct bonding *bond = to_bond(d); |
5bb9e0b5 | 362 | int new_value, ret = count; |
f5b2b966 | 363 | |
5c5038dc | 364 | if (!rtnl_trylock()) |
365 | return restart_syscall(); | |
ece95f7f | 366 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 367 | if (new_value < 0) { |
a4aee5c8 | 368 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 | 369 | bond->dev->name, buf); |
5c5038dc | 370 | ret = -EINVAL; |
371 | goto out; | |
f5b2b966 | 372 | } |
5bb9e0b5 | 373 | if (bond->params.mode != BOND_MODE_ACTIVEBACKUP) { |
a4aee5c8 | 374 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 | 375 | bond->dev->name); |
5c5038dc | 376 | ret = -EINVAL; |
377 | goto out; | |
f5b2b966 | 378 | } |
a4aee5c8 JP |
379 | pr_info("%s: setting arp_validate to %s (%d).\n", |
380 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
381 | new_value); | |
f5b2b966 | 382 | |
5bb9e0b5 | 383 | if (bond->dev->flags & IFF_UP) { |
384 | if (!new_value) | |
385 | bond->recv_probe = NULL; | |
386 | else if (bond->params.arp_interval) | |
387 | bond->recv_probe = bond_arp_rcv; | |
388 | } | |
f5b2b966 | 389 | bond->params.arp_validate = new_value; |
5c5038dc | 390 | out: |
391 | rtnl_unlock(); | |
f5b2b966 | 392 | |
5c5038dc | 393 | return ret; |
f5b2b966 JV |
394 | } |
395 | ||
3d632c3f SH |
396 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
397 | bonding_store_arp_validate); | |
8599b52e VF |
398 | /* |
399 | * Show and set arp_all_targets. | |
400 | */ | |
401 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
402 | struct device_attribute *attr, | |
403 | char *buf) | |
404 | { | |
405 | struct bonding *bond = to_bond(d); | |
406 | int value = bond->params.arp_all_targets; | |
407 | ||
408 | return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename, | |
409 | value); | |
410 | } | |
411 | ||
412 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
413 | struct device_attribute *attr, | |
414 | const char *buf, size_t count) | |
415 | { | |
416 | struct bonding *bond = to_bond(d); | |
417 | int new_value; | |
418 | ||
419 | new_value = bond_parse_parm(buf, arp_all_targets_tbl); | |
420 | if (new_value < 0) { | |
421 | pr_err("%s: Ignoring invalid arp_all_targets value %s\n", | |
422 | bond->dev->name, buf); | |
423 | return -EINVAL; | |
424 | } | |
425 | pr_info("%s: setting arp_all_targets to %s (%d).\n", | |
426 | bond->dev->name, arp_all_targets_tbl[new_value].modename, | |
427 | new_value); | |
428 | ||
429 | bond->params.arp_all_targets = new_value; | |
430 | ||
431 | return count; | |
432 | } | |
433 | ||
434 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
435 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 436 | |
dd957c57 JV |
437 | /* |
438 | * Show and store fail_over_mac. User only allowed to change the | |
439 | * value when there are no slaves. | |
440 | */ | |
3d632c3f SH |
441 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
442 | struct device_attribute *attr, | |
443 | char *buf) | |
dd957c57 JV |
444 | { |
445 | struct bonding *bond = to_bond(d); | |
446 | ||
3915c1e8 JV |
447 | return sprintf(buf, "%s %d\n", |
448 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
449 | bond->params.fail_over_mac); | |
dd957c57 JV |
450 | } |
451 | ||
3d632c3f SH |
452 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
453 | struct device_attribute *attr, | |
454 | const char *buf, size_t count) | |
dd957c57 | 455 | { |
9402b746 | 456 | int new_value, ret = count; |
dd957c57 JV |
457 | struct bonding *bond = to_bond(d); |
458 | ||
9402b746 | 459 | if (!rtnl_trylock()) |
460 | return restart_syscall(); | |
461 | ||
0965a1f3 | 462 | if (bond_has_slaves(bond)) { |
a4aee5c8 | 463 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 464 | bond->dev->name); |
9402b746 | 465 | ret = -EPERM; |
466 | goto out; | |
dd957c57 JV |
467 | } |
468 | ||
3915c1e8 JV |
469 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
470 | if (new_value < 0) { | |
a4aee5c8 | 471 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 | 472 | bond->dev->name, buf); |
9402b746 | 473 | ret = -EINVAL; |
474 | goto out; | |
dd957c57 JV |
475 | } |
476 | ||
3915c1e8 | 477 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
478 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
479 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
480 | new_value); | |
3915c1e8 | 481 | |
9402b746 | 482 | out: |
483 | rtnl_unlock(); | |
484 | return ret; | |
dd957c57 JV |
485 | } |
486 | ||
3d632c3f SH |
487 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
488 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 489 | |
b76cdba9 MW |
490 | /* |
491 | * Show and set the arp timer interval. There are two tricky bits | |
492 | * here. First, if ARP monitoring is activated, then we must disable | |
493 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
494 | * start it. | |
495 | */ | |
43cb76d9 GKH |
496 | static ssize_t bonding_show_arp_interval(struct device *d, |
497 | struct device_attribute *attr, | |
498 | char *buf) | |
b76cdba9 | 499 | { |
43cb76d9 | 500 | struct bonding *bond = to_bond(d); |
b76cdba9 | 501 | |
7bd46508 | 502 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
503 | } |
504 | ||
43cb76d9 GKH |
505 | static ssize_t bonding_store_arp_interval(struct device *d, |
506 | struct device_attribute *attr, | |
507 | const char *buf, size_t count) | |
b76cdba9 | 508 | { |
43cb76d9 | 509 | struct bonding *bond = to_bond(d); |
5bb9e0b5 | 510 | int new_value, ret = count; |
b76cdba9 | 511 | |
fbb0c41b | 512 | if (!rtnl_trylock()) |
513 | return restart_syscall(); | |
b76cdba9 | 514 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 515 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
516 | bond->dev->name); |
517 | ret = -EINVAL; | |
518 | goto out; | |
519 | } | |
520 | if (new_value < 0) { | |
1bc7db16 | 521 | pr_err("%s: Invalid arp_interval value %d not in range 0-%d; rejected.\n", |
b76cdba9 MW |
522 | bond->dev->name, new_value, INT_MAX); |
523 | ret = -EINVAL; | |
524 | goto out; | |
525 | } | |
c5cb002f | 526 | if (bond->params.mode == BOND_MODE_ALB || |
ec9f1d15 VF |
527 | bond->params.mode == BOND_MODE_TLB || |
528 | bond->params.mode == BOND_MODE_8023AD) { | |
529 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB/802.3ad. Only MII monitoring is supported on %s.\n", | |
c5cb002f AG |
530 | bond->dev->name, bond->dev->name); |
531 | ret = -EINVAL; | |
532 | goto out; | |
533 | } | |
a4aee5c8 JP |
534 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
535 | bond->dev->name, new_value); | |
b76cdba9 | 536 | bond->params.arp_interval = new_value; |
1bc7db16 | 537 | if (new_value) { |
538 | if (bond->params.miimon) { | |
539 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
540 | bond->dev->name, bond->dev->name); | |
541 | bond->params.miimon = 0; | |
542 | } | |
543 | if (!bond->params.arp_targets[0]) | |
544 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
545 | bond->dev->name); | |
b76cdba9 MW |
546 | } |
547 | if (bond->dev->flags & IFF_UP) { | |
548 | /* If the interface is up, we may need to fire off | |
549 | * the ARP timer. If the interface is down, the | |
550 | * timer will get fired off when the open function | |
551 | * is called. | |
552 | */ | |
1bc7db16 | 553 | if (!new_value) { |
5bb9e0b5 | 554 | if (bond->params.arp_validate) |
555 | bond->recv_probe = NULL; | |
1bc7db16 | 556 | cancel_delayed_work_sync(&bond->arp_work); |
557 | } else { | |
5bb9e0b5 | 558 | /* arp_validate can be set only in active-backup mode */ |
559 | if (bond->params.arp_validate) | |
560 | bond->recv_probe = bond_arp_rcv; | |
1bc7db16 | 561 | cancel_delayed_work_sync(&bond->mii_work); |
562 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
563 | } | |
b76cdba9 | 564 | } |
b76cdba9 | 565 | out: |
fbb0c41b | 566 | rtnl_unlock(); |
b76cdba9 MW |
567 | return ret; |
568 | } | |
3d632c3f SH |
569 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
570 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
571 | |
572 | /* | |
573 | * Show and set the arp targets. | |
574 | */ | |
43cb76d9 GKH |
575 | static ssize_t bonding_show_arp_targets(struct device *d, |
576 | struct device_attribute *attr, | |
577 | char *buf) | |
b76cdba9 MW |
578 | { |
579 | int i, res = 0; | |
43cb76d9 | 580 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
581 | |
582 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
583 | if (bond->params.arp_targets[i]) | |
63779436 HH |
584 | res += sprintf(buf + res, "%pI4 ", |
585 | &bond->params.arp_targets[i]); | |
b76cdba9 | 586 | } |
1dcdcd69 WF |
587 | if (res) |
588 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
589 | return res; |
590 | } | |
591 | ||
43cb76d9 GKH |
592 | static ssize_t bonding_store_arp_targets(struct device *d, |
593 | struct device_attribute *attr, | |
594 | const char *buf, size_t count) | |
b76cdba9 | 595 | { |
43cb76d9 | 596 | struct bonding *bond = to_bond(d); |
9caff1e7 | 597 | struct list_head *iter; |
8599b52e VF |
598 | struct slave *slave; |
599 | __be32 newtarget, *targets; | |
600 | unsigned long *targets_rx; | |
601 | int ind, i, j, ret = -EINVAL; | |
b76cdba9 | 602 | |
4d1ae5fb | 603 | if (!rtnl_trylock()) |
604 | return restart_syscall(); | |
605 | ||
b76cdba9 MW |
606 | targets = bond->params.arp_targets; |
607 | newtarget = in_aton(buf + 1); | |
608 | /* look for adds */ | |
609 | if (buf[0] == '+') { | |
d3bb52b0 | 610 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 611 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 612 | bond->dev->name, &newtarget); |
b76cdba9 MW |
613 | goto out; |
614 | } | |
87a7b84b VF |
615 | |
616 | if (bond_get_targets_ip(targets, newtarget) != -1) { /* dup */ | |
617 | pr_err("%s: ARP target %pI4 is already present\n", | |
618 | bond->dev->name, &newtarget); | |
619 | goto out; | |
b76cdba9 | 620 | } |
87a7b84b | 621 | |
8599b52e VF |
622 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ |
623 | if (ind == -1) { | |
a4aee5c8 | 624 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 | 625 | bond->dev->name); |
b76cdba9 MW |
626 | goto out; |
627 | } | |
628 | ||
87a7b84b VF |
629 | pr_info("%s: adding ARP target %pI4.\n", bond->dev->name, |
630 | &newtarget); | |
8599b52e VF |
631 | /* not to race with bond_arp_rcv */ |
632 | write_lock_bh(&bond->lock); | |
9caff1e7 | 633 | bond_for_each_slave(bond, slave, iter) |
8599b52e VF |
634 | slave->target_last_arp_rx[ind] = jiffies; |
635 | targets[ind] = newtarget; | |
636 | write_unlock_bh(&bond->lock); | |
3d632c3f | 637 | } else if (buf[0] == '-') { |
d3bb52b0 | 638 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 639 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 640 | bond->dev->name, &newtarget); |
b76cdba9 MW |
641 | goto out; |
642 | } | |
643 | ||
8599b52e VF |
644 | ind = bond_get_targets_ip(targets, newtarget); |
645 | if (ind == -1) { | |
646 | pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", | |
a4aee5c8 | 647 | bond->dev->name, &newtarget); |
b76cdba9 MW |
648 | goto out; |
649 | } | |
87a7b84b | 650 | |
8599b52e VF |
651 | if (ind == 0 && !targets[1] && bond->params.arp_interval) |
652 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
653 | bond->dev->name); | |
654 | ||
87a7b84b VF |
655 | pr_info("%s: removing ARP target %pI4.\n", bond->dev->name, |
656 | &newtarget); | |
8599b52e VF |
657 | |
658 | write_lock_bh(&bond->lock); | |
9caff1e7 | 659 | bond_for_each_slave(bond, slave, iter) { |
8599b52e VF |
660 | targets_rx = slave->target_last_arp_rx; |
661 | j = ind; | |
662 | for (; (j < BOND_MAX_ARP_TARGETS-1) && targets[j+1]; j++) | |
663 | targets_rx[j] = targets_rx[j+1]; | |
664 | targets_rx[j] = 0; | |
665 | } | |
666 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
87a7b84b VF |
667 | targets[i] = targets[i+1]; |
668 | targets[i] = 0; | |
8599b52e | 669 | write_unlock_bh(&bond->lock); |
3d632c3f | 670 | } else { |
a4aee5c8 JP |
671 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
672 | bond->dev->name); | |
b76cdba9 MW |
673 | ret = -EPERM; |
674 | goto out; | |
675 | } | |
676 | ||
87a7b84b | 677 | ret = count; |
b76cdba9 | 678 | out: |
4d1ae5fb | 679 | rtnl_unlock(); |
b76cdba9 MW |
680 | return ret; |
681 | } | |
43cb76d9 | 682 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
683 | |
684 | /* | |
685 | * Show and set the up and down delays. These must be multiples of the | |
686 | * MII monitoring value, and are stored internally as the multiplier. | |
687 | * Thus, we must translate to MS for the real world. | |
688 | */ | |
43cb76d9 GKH |
689 | static ssize_t bonding_show_downdelay(struct device *d, |
690 | struct device_attribute *attr, | |
691 | char *buf) | |
b76cdba9 | 692 | { |
43cb76d9 | 693 | struct bonding *bond = to_bond(d); |
b76cdba9 | 694 | |
7bd46508 | 695 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
696 | } |
697 | ||
43cb76d9 GKH |
698 | static ssize_t bonding_store_downdelay(struct device *d, |
699 | struct device_attribute *attr, | |
700 | const char *buf, size_t count) | |
b76cdba9 MW |
701 | { |
702 | int new_value, ret = count; | |
43cb76d9 | 703 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
704 | |
705 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 706 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
707 | bond->dev->name); |
708 | ret = -EPERM; | |
709 | goto out; | |
710 | } | |
711 | ||
712 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 713 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
714 | ret = -EINVAL; |
715 | goto out; | |
716 | } | |
717 | if (new_value < 0) { | |
a4aee5c8 | 718 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 719 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
720 | ret = -EINVAL; |
721 | goto out; | |
722 | } else { | |
723 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 724 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
725 | bond->dev->name, new_value, |
726 | bond->params.miimon, | |
727 | (new_value / bond->params.miimon) * | |
728 | bond->params.miimon); | |
b76cdba9 MW |
729 | } |
730 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
731 | pr_info("%s: Setting down delay to %d.\n", |
732 | bond->dev->name, | |
733 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
734 | |
735 | } | |
736 | ||
737 | out: | |
738 | return ret; | |
739 | } | |
3d632c3f SH |
740 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
741 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 742 | |
43cb76d9 GKH |
743 | static ssize_t bonding_show_updelay(struct device *d, |
744 | struct device_attribute *attr, | |
745 | char *buf) | |
b76cdba9 | 746 | { |
43cb76d9 | 747 | struct bonding *bond = to_bond(d); |
b76cdba9 | 748 | |
7bd46508 | 749 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
750 | |
751 | } | |
752 | ||
43cb76d9 GKH |
753 | static ssize_t bonding_store_updelay(struct device *d, |
754 | struct device_attribute *attr, | |
755 | const char *buf, size_t count) | |
b76cdba9 MW |
756 | { |
757 | int new_value, ret = count; | |
43cb76d9 | 758 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
759 | |
760 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 761 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
762 | bond->dev->name); |
763 | ret = -EPERM; | |
764 | goto out; | |
765 | } | |
766 | ||
767 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 768 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
769 | bond->dev->name); |
770 | ret = -EINVAL; | |
771 | goto out; | |
772 | } | |
773 | if (new_value < 0) { | |
1bc7db16 | 774 | pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n", |
775 | bond->dev->name, new_value, 0, INT_MAX); | |
b76cdba9 MW |
776 | ret = -EINVAL; |
777 | goto out; | |
778 | } else { | |
779 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 780 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
781 | bond->dev->name, new_value, |
782 | bond->params.miimon, | |
783 | (new_value / bond->params.miimon) * | |
784 | bond->params.miimon); | |
b76cdba9 MW |
785 | } |
786 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
787 | pr_info("%s: Setting up delay to %d.\n", |
788 | bond->dev->name, | |
789 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
790 | } |
791 | ||
792 | out: | |
793 | return ret; | |
794 | } | |
3d632c3f SH |
795 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
796 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
797 | |
798 | /* | |
799 | * Show and set the LACP interval. Interface must be down, and the mode | |
800 | * must be set to 802.3ad mode. | |
801 | */ | |
43cb76d9 GKH |
802 | static ssize_t bonding_show_lacp(struct device *d, |
803 | struct device_attribute *attr, | |
804 | char *buf) | |
b76cdba9 | 805 | { |
43cb76d9 | 806 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
807 | |
808 | return sprintf(buf, "%s %d\n", | |
809 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 810 | bond->params.lacp_fast); |
b76cdba9 MW |
811 | } |
812 | ||
43cb76d9 GKH |
813 | static ssize_t bonding_store_lacp(struct device *d, |
814 | struct device_attribute *attr, | |
815 | const char *buf, size_t count) | |
b76cdba9 | 816 | { |
43cb76d9 | 817 | struct bonding *bond = to_bond(d); |
c509316b | 818 | int new_value, ret = count; |
819 | ||
820 | if (!rtnl_trylock()) | |
821 | return restart_syscall(); | |
b76cdba9 MW |
822 | |
823 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 824 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
825 | bond->dev->name); |
826 | ret = -EPERM; | |
827 | goto out; | |
828 | } | |
829 | ||
830 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 831 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
832 | bond->dev->name); |
833 | ret = -EPERM; | |
834 | goto out; | |
835 | } | |
836 | ||
ece95f7f | 837 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
838 | |
839 | if ((new_value == 1) || (new_value == 0)) { | |
840 | bond->params.lacp_fast = new_value; | |
ba824a8b | 841 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 842 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
843 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
844 | new_value); | |
b76cdba9 | 845 | } else { |
a4aee5c8 | 846 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 847 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
848 | ret = -EINVAL; |
849 | } | |
850 | out: | |
c509316b | 851 | rtnl_unlock(); |
852 | ||
b76cdba9 MW |
853 | return ret; |
854 | } | |
3d632c3f SH |
855 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
856 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 857 | |
655f8919 | 858 | static ssize_t bonding_show_min_links(struct device *d, |
859 | struct device_attribute *attr, | |
860 | char *buf) | |
861 | { | |
862 | struct bonding *bond = to_bond(d); | |
863 | ||
864 | return sprintf(buf, "%d\n", bond->params.min_links); | |
865 | } | |
866 | ||
867 | static ssize_t bonding_store_min_links(struct device *d, | |
868 | struct device_attribute *attr, | |
869 | const char *buf, size_t count) | |
870 | { | |
871 | struct bonding *bond = to_bond(d); | |
872 | int ret; | |
873 | unsigned int new_value; | |
874 | ||
875 | ret = kstrtouint(buf, 0, &new_value); | |
876 | if (ret < 0) { | |
877 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
878 | bond->dev->name, buf); | |
879 | return ret; | |
880 | } | |
881 | ||
882 | pr_info("%s: Setting min links value to %u\n", | |
883 | bond->dev->name, new_value); | |
884 | bond->params.min_links = new_value; | |
885 | return count; | |
886 | } | |
887 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
888 | bonding_show_min_links, bonding_store_min_links); | |
889 | ||
fd989c83 JV |
890 | static ssize_t bonding_show_ad_select(struct device *d, |
891 | struct device_attribute *attr, | |
892 | char *buf) | |
893 | { | |
894 | struct bonding *bond = to_bond(d); | |
895 | ||
896 | return sprintf(buf, "%s %d\n", | |
897 | ad_select_tbl[bond->params.ad_select].modename, | |
898 | bond->params.ad_select); | |
899 | } | |
900 | ||
901 | ||
902 | static ssize_t bonding_store_ad_select(struct device *d, | |
903 | struct device_attribute *attr, | |
904 | const char *buf, size_t count) | |
905 | { | |
906 | int new_value, ret = count; | |
907 | struct bonding *bond = to_bond(d); | |
908 | ||
909 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
910 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
911 | bond->dev->name); | |
fd989c83 JV |
912 | ret = -EPERM; |
913 | goto out; | |
914 | } | |
915 | ||
916 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
917 | ||
918 | if (new_value != -1) { | |
919 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
920 | pr_info("%s: Setting ad_select to %s (%d).\n", |
921 | bond->dev->name, ad_select_tbl[new_value].modename, | |
922 | new_value); | |
fd989c83 | 923 | } else { |
a4aee5c8 | 924 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
925 | bond->dev->name, (int)strlen(buf) - 1, buf); |
926 | ret = -EINVAL; | |
927 | } | |
928 | out: | |
929 | return ret; | |
930 | } | |
3d632c3f SH |
931 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
932 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 933 | |
ad246c99 BH |
934 | /* |
935 | * Show and set the number of peer notifications to send after a failover event. | |
936 | */ | |
937 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
938 | struct device_attribute *attr, | |
939 | char *buf) | |
940 | { | |
941 | struct bonding *bond = to_bond(d); | |
942 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
943 | } | |
944 | ||
945 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
946 | struct device_attribute *attr, | |
947 | const char *buf, size_t count) | |
948 | { | |
949 | struct bonding *bond = to_bond(d); | |
950 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
951 | return err ? err : count; | |
952 | } | |
953 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
954 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
955 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
956 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
957 | ||
b76cdba9 MW |
958 | /* |
959 | * Show and set the MII monitor interval. There are two tricky bits | |
960 | * here. First, if MII monitoring is activated, then we must disable | |
961 | * ARP monitoring. Second, if the timer isn't running, we must | |
962 | * start it. | |
963 | */ | |
43cb76d9 GKH |
964 | static ssize_t bonding_show_miimon(struct device *d, |
965 | struct device_attribute *attr, | |
966 | char *buf) | |
b76cdba9 | 967 | { |
43cb76d9 | 968 | struct bonding *bond = to_bond(d); |
b76cdba9 | 969 | |
7bd46508 | 970 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
971 | } |
972 | ||
43cb76d9 GKH |
973 | static ssize_t bonding_store_miimon(struct device *d, |
974 | struct device_attribute *attr, | |
975 | const char *buf, size_t count) | |
b76cdba9 MW |
976 | { |
977 | int new_value, ret = count; | |
43cb76d9 | 978 | struct bonding *bond = to_bond(d); |
b76cdba9 | 979 | |
fbb0c41b | 980 | if (!rtnl_trylock()) |
981 | return restart_syscall(); | |
b76cdba9 | 982 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 983 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
984 | bond->dev->name); |
985 | ret = -EINVAL; | |
986 | goto out; | |
987 | } | |
988 | if (new_value < 0) { | |
a4aee5c8 | 989 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 990 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
991 | ret = -EINVAL; |
992 | goto out; | |
1bc7db16 | 993 | } |
994 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
995 | bond->dev->name, new_value); | |
996 | bond->params.miimon = new_value; | |
997 | if (bond->params.updelay) | |
998 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
999 | bond->dev->name, | |
1000 | bond->params.updelay * bond->params.miimon); | |
1001 | if (bond->params.downdelay) | |
1002 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
1003 | bond->dev->name, | |
1004 | bond->params.downdelay * bond->params.miimon); | |
1005 | if (new_value && bond->params.arp_interval) { | |
1006 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", | |
1007 | bond->dev->name); | |
1008 | bond->params.arp_interval = 0; | |
1009 | if (bond->params.arp_validate) | |
1010 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
1011 | } | |
1012 | if (bond->dev->flags & IFF_UP) { | |
1013 | /* If the interface is up, we may need to fire off | |
1014 | * the MII timer. If the interface is down, the | |
1015 | * timer will get fired off when the open function | |
1016 | * is called. | |
1017 | */ | |
1018 | if (!new_value) { | |
1019 | cancel_delayed_work_sync(&bond->mii_work); | |
1020 | } else { | |
fbb0c41b | 1021 | cancel_delayed_work_sync(&bond->arp_work); |
1022 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
b76cdba9 MW |
1023 | } |
1024 | } | |
1025 | out: | |
fbb0c41b | 1026 | rtnl_unlock(); |
b76cdba9 MW |
1027 | return ret; |
1028 | } | |
3d632c3f SH |
1029 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1030 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1031 | |
1032 | /* | |
1033 | * Show and set the primary slave. The store function is much | |
1034 | * simpler than bonding_store_slaves function because it only needs to | |
1035 | * handle one interface name. | |
1036 | * The bond must be a mode that supports a primary for this be | |
1037 | * set. | |
1038 | */ | |
43cb76d9 GKH |
1039 | static ssize_t bonding_show_primary(struct device *d, |
1040 | struct device_attribute *attr, | |
1041 | char *buf) | |
b76cdba9 MW |
1042 | { |
1043 | int count = 0; | |
43cb76d9 | 1044 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1045 | |
1046 | if (bond->primary_slave) | |
7bd46508 | 1047 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1048 | |
1049 | return count; | |
1050 | } | |
1051 | ||
43cb76d9 GKH |
1052 | static ssize_t bonding_store_primary(struct device *d, |
1053 | struct device_attribute *attr, | |
1054 | const char *buf, size_t count) | |
b76cdba9 | 1055 | { |
43cb76d9 | 1056 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1057 | struct list_head *iter; |
f4bb2e9c | 1058 | char ifname[IFNAMSIZ]; |
dec1e90e | 1059 | struct slave *slave; |
b76cdba9 | 1060 | |
496a60cd EB |
1061 | if (!rtnl_trylock()) |
1062 | return restart_syscall(); | |
e843fa50 | 1063 | block_netpoll_tx(); |
e934dd78 JV |
1064 | read_lock(&bond->lock); |
1065 | write_lock_bh(&bond->curr_slave_lock); | |
1066 | ||
b76cdba9 | 1067 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1068 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1069 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1070 | goto out; |
1071 | } | |
b76cdba9 | 1072 | |
eb6e98a1 | 1073 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1074 | |
f4bb2e9c AG |
1075 | /* check to see if we are clearing primary */ |
1076 | if (!strlen(ifname) || buf[0] == '\n') { | |
1077 | pr_info("%s: Setting primary slave to None.\n", | |
1078 | bond->dev->name); | |
1079 | bond->primary_slave = NULL; | |
eb492f74 | 1080 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
f4bb2e9c AG |
1081 | bond_select_active_slave(bond); |
1082 | goto out; | |
1083 | } | |
1084 | ||
9caff1e7 | 1085 | bond_for_each_slave(bond, slave, iter) { |
f4bb2e9c AG |
1086 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
1087 | pr_info("%s: Setting %s as primary slave.\n", | |
1088 | bond->dev->name, slave->dev->name); | |
1089 | bond->primary_slave = slave; | |
1090 | strcpy(bond->params.primary, slave->dev->name); | |
1091 | bond_select_active_slave(bond); | |
1092 | goto out; | |
b76cdba9 MW |
1093 | } |
1094 | } | |
f4bb2e9c | 1095 | |
8a93664d WP |
1096 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1097 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1098 | ||
1099 | pr_info("%s: Recording %s as primary, " | |
1100 | "but it has not been enslaved to %s yet.\n", | |
1101 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1102 | out: |
e934dd78 JV |
1103 | write_unlock_bh(&bond->curr_slave_lock); |
1104 | read_unlock(&bond->lock); | |
e843fa50 | 1105 | unblock_netpoll_tx(); |
6603a6f2 JV |
1106 | rtnl_unlock(); |
1107 | ||
b76cdba9 MW |
1108 | return count; |
1109 | } | |
3d632c3f SH |
1110 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1111 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1112 | |
a549952a JP |
1113 | /* |
1114 | * Show and set the primary_reselect flag. | |
1115 | */ | |
1116 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1117 | struct device_attribute *attr, | |
1118 | char *buf) | |
1119 | { | |
1120 | struct bonding *bond = to_bond(d); | |
1121 | ||
1122 | return sprintf(buf, "%s %d\n", | |
1123 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1124 | bond->params.primary_reselect); | |
1125 | } | |
1126 | ||
1127 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1128 | struct device_attribute *attr, | |
1129 | const char *buf, size_t count) | |
1130 | { | |
1131 | int new_value, ret = count; | |
1132 | struct bonding *bond = to_bond(d); | |
1133 | ||
1134 | if (!rtnl_trylock()) | |
1135 | return restart_syscall(); | |
1136 | ||
1137 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1138 | if (new_value < 0) { | |
a4aee5c8 | 1139 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1140 | bond->dev->name, |
1141 | (int) strlen(buf) - 1, buf); | |
1142 | ret = -EINVAL; | |
1143 | goto out; | |
1144 | } | |
1145 | ||
1146 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1147 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1148 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1149 | new_value); | |
1150 | ||
e843fa50 | 1151 | block_netpoll_tx(); |
a549952a JP |
1152 | read_lock(&bond->lock); |
1153 | write_lock_bh(&bond->curr_slave_lock); | |
1154 | bond_select_active_slave(bond); | |
1155 | write_unlock_bh(&bond->curr_slave_lock); | |
1156 | read_unlock(&bond->lock); | |
e843fa50 | 1157 | unblock_netpoll_tx(); |
a549952a JP |
1158 | out: |
1159 | rtnl_unlock(); | |
1160 | return ret; | |
1161 | } | |
1162 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1163 | bonding_show_primary_reselect, | |
1164 | bonding_store_primary_reselect); | |
1165 | ||
b76cdba9 MW |
1166 | /* |
1167 | * Show and set the use_carrier flag. | |
1168 | */ | |
43cb76d9 GKH |
1169 | static ssize_t bonding_show_carrier(struct device *d, |
1170 | struct device_attribute *attr, | |
1171 | char *buf) | |
b76cdba9 | 1172 | { |
43cb76d9 | 1173 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1174 | |
7bd46508 | 1175 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1176 | } |
1177 | ||
43cb76d9 GKH |
1178 | static ssize_t bonding_store_carrier(struct device *d, |
1179 | struct device_attribute *attr, | |
1180 | const char *buf, size_t count) | |
b76cdba9 MW |
1181 | { |
1182 | int new_value, ret = count; | |
43cb76d9 | 1183 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1184 | |
1185 | ||
1186 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1187 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1188 | bond->dev->name); |
1189 | ret = -EINVAL; | |
1190 | goto out; | |
1191 | } | |
1192 | if ((new_value == 0) || (new_value == 1)) { | |
1193 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1194 | pr_info("%s: Setting use_carrier to %d.\n", |
1195 | bond->dev->name, new_value); | |
b76cdba9 | 1196 | } else { |
a4aee5c8 JP |
1197 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1198 | bond->dev->name, new_value); | |
b76cdba9 MW |
1199 | } |
1200 | out: | |
672bda33 | 1201 | return ret; |
b76cdba9 | 1202 | } |
3d632c3f SH |
1203 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1204 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1205 | |
1206 | ||
1207 | /* | |
1208 | * Show and set currently active_slave. | |
1209 | */ | |
43cb76d9 GKH |
1210 | static ssize_t bonding_show_active_slave(struct device *d, |
1211 | struct device_attribute *attr, | |
1212 | char *buf) | |
b76cdba9 | 1213 | { |
43cb76d9 | 1214 | struct bonding *bond = to_bond(d); |
752d48b5 | 1215 | struct net_device *slave_dev; |
16cd0160 | 1216 | int count = 0; |
b76cdba9 | 1217 | |
278b2083 | 1218 | rcu_read_lock(); |
752d48b5 JP |
1219 | slave_dev = bond_option_active_slave_get_rcu(bond); |
1220 | if (slave_dev) | |
1221 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 1222 | rcu_read_unlock(); |
1223 | ||
b76cdba9 MW |
1224 | return count; |
1225 | } | |
1226 | ||
43cb76d9 GKH |
1227 | static ssize_t bonding_store_active_slave(struct device *d, |
1228 | struct device_attribute *attr, | |
1229 | const char *buf, size_t count) | |
b76cdba9 | 1230 | { |
d9e32b21 | 1231 | int ret; |
43cb76d9 | 1232 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1233 | char ifname[IFNAMSIZ]; |
d9e32b21 | 1234 | struct net_device *dev; |
b76cdba9 | 1235 | |
496a60cd EB |
1236 | if (!rtnl_trylock()) |
1237 | return restart_syscall(); | |
e843fa50 | 1238 | |
c84e1590 | 1239 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c | 1240 | if (!strlen(ifname) || buf[0] == '\n') { |
d9e32b21 JP |
1241 | dev = NULL; |
1242 | } else { | |
1243 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
1244 | if (!dev) { | |
1245 | ret = -ENODEV; | |
1246 | goto out; | |
b76cdba9 | 1247 | } |
b76cdba9 | 1248 | } |
f4bb2e9c | 1249 | |
d9e32b21 JP |
1250 | ret = bond_option_active_slave_set(bond, dev); |
1251 | if (!ret) | |
1252 | ret = count; | |
e843fa50 | 1253 | |
d9e32b21 | 1254 | out: |
6603a6f2 JV |
1255 | rtnl_unlock(); |
1256 | ||
d9e32b21 | 1257 | return ret; |
b76cdba9 MW |
1258 | |
1259 | } | |
3d632c3f SH |
1260 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1261 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1262 | |
1263 | ||
1264 | /* | |
1265 | * Show link status of the bond interface. | |
1266 | */ | |
43cb76d9 GKH |
1267 | static ssize_t bonding_show_mii_status(struct device *d, |
1268 | struct device_attribute *attr, | |
1269 | char *buf) | |
b76cdba9 | 1270 | { |
43cb76d9 | 1271 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1272 | |
278b2083 | 1273 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 1274 | } |
43cb76d9 | 1275 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1276 | |
b76cdba9 MW |
1277 | /* |
1278 | * Show current 802.3ad aggregator ID. | |
1279 | */ | |
43cb76d9 GKH |
1280 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1281 | struct device_attribute *attr, | |
1282 | char *buf) | |
b76cdba9 MW |
1283 | { |
1284 | int count = 0; | |
43cb76d9 | 1285 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1286 | |
1287 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1288 | struct ad_info ad_info; | |
3d632c3f | 1289 | count = sprintf(buf, "%d\n", |
318debd8 | 1290 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1291 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1292 | } |
b76cdba9 MW |
1293 | |
1294 | return count; | |
1295 | } | |
43cb76d9 | 1296 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1297 | |
1298 | ||
1299 | /* | |
1300 | * Show number of active 802.3ad ports. | |
1301 | */ | |
43cb76d9 GKH |
1302 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1303 | struct device_attribute *attr, | |
1304 | char *buf) | |
b76cdba9 MW |
1305 | { |
1306 | int count = 0; | |
43cb76d9 | 1307 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1308 | |
1309 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1310 | struct ad_info ad_info; | |
3d632c3f | 1311 | count = sprintf(buf, "%d\n", |
318debd8 | 1312 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1313 | ? 0 : ad_info.ports); |
b76cdba9 | 1314 | } |
b76cdba9 MW |
1315 | |
1316 | return count; | |
1317 | } | |
43cb76d9 | 1318 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1319 | |
1320 | ||
1321 | /* | |
1322 | * Show current 802.3ad actor key. | |
1323 | */ | |
43cb76d9 GKH |
1324 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1325 | struct device_attribute *attr, | |
1326 | char *buf) | |
b76cdba9 MW |
1327 | { |
1328 | int count = 0; | |
43cb76d9 | 1329 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1330 | |
1331 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1332 | struct ad_info ad_info; | |
3d632c3f | 1333 | count = sprintf(buf, "%d\n", |
318debd8 | 1334 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1335 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1336 | } |
b76cdba9 MW |
1337 | |
1338 | return count; | |
1339 | } | |
43cb76d9 | 1340 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1341 | |
1342 | ||
1343 | /* | |
1344 | * Show current 802.3ad partner key. | |
1345 | */ | |
43cb76d9 GKH |
1346 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1347 | struct device_attribute *attr, | |
1348 | char *buf) | |
b76cdba9 MW |
1349 | { |
1350 | int count = 0; | |
43cb76d9 | 1351 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1352 | |
1353 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1354 | struct ad_info ad_info; | |
3d632c3f | 1355 | count = sprintf(buf, "%d\n", |
318debd8 | 1356 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1357 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1358 | } |
b76cdba9 MW |
1359 | |
1360 | return count; | |
1361 | } | |
43cb76d9 | 1362 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1363 | |
1364 | ||
1365 | /* | |
1366 | * Show current 802.3ad partner mac. | |
1367 | */ | |
43cb76d9 GKH |
1368 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1369 | struct device_attribute *attr, | |
1370 | char *buf) | |
b76cdba9 MW |
1371 | { |
1372 | int count = 0; | |
43cb76d9 | 1373 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1374 | |
1375 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1376 | struct ad_info ad_info; | |
3d632c3f | 1377 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1378 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1379 | } |
b76cdba9 MW |
1380 | |
1381 | return count; | |
1382 | } | |
43cb76d9 | 1383 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1384 | |
bb1d9123 AG |
1385 | /* |
1386 | * Show the queue_ids of the slaves in the current bond. | |
1387 | */ | |
1388 | static ssize_t bonding_show_queue_id(struct device *d, | |
1389 | struct device_attribute *attr, | |
1390 | char *buf) | |
1391 | { | |
bb1d9123 | 1392 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1393 | struct list_head *iter; |
dec1e90e | 1394 | struct slave *slave; |
1395 | int res = 0; | |
bb1d9123 AG |
1396 | |
1397 | if (!rtnl_trylock()) | |
1398 | return restart_syscall(); | |
1399 | ||
9caff1e7 | 1400 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1401 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1402 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1403 | if ((PAGE_SIZE - res) > 10) |
1404 | res = PAGE_SIZE - 10; | |
1405 | res += sprintf(buf + res, "++more++ "); | |
1406 | break; | |
1407 | } | |
1408 | res += sprintf(buf + res, "%s:%d ", | |
1409 | slave->dev->name, slave->queue_id); | |
1410 | } | |
bb1d9123 AG |
1411 | if (res) |
1412 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1413 | |
bb1d9123 | 1414 | rtnl_unlock(); |
dec1e90e | 1415 | |
bb1d9123 AG |
1416 | return res; |
1417 | } | |
1418 | ||
1419 | /* | |
1420 | * Set the queue_ids of the slaves in the current bond. The bond | |
1421 | * interface must be enslaved for this to work. | |
1422 | */ | |
1423 | static ssize_t bonding_store_queue_id(struct device *d, | |
1424 | struct device_attribute *attr, | |
1425 | const char *buffer, size_t count) | |
1426 | { | |
1427 | struct slave *slave, *update_slave; | |
1428 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1429 | struct list_head *iter; |
bb1d9123 | 1430 | u16 qid; |
dec1e90e | 1431 | int ret = count; |
bb1d9123 AG |
1432 | char *delim; |
1433 | struct net_device *sdev = NULL; | |
1434 | ||
1435 | if (!rtnl_trylock()) | |
1436 | return restart_syscall(); | |
1437 | ||
1438 | /* delim will point to queue id if successful */ | |
1439 | delim = strchr(buffer, ':'); | |
1440 | if (!delim) | |
1441 | goto err_no_cmd; | |
1442 | ||
1443 | /* | |
1444 | * Terminate string that points to device name and bump it | |
1445 | * up one, so we can read the queue id there. | |
1446 | */ | |
1447 | *delim = '\0'; | |
1448 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1449 | goto err_no_cmd; | |
1450 | ||
1451 | /* Check buffer length, valid ifname and queue id */ | |
1452 | if (strlen(buffer) > IFNAMSIZ || | |
1453 | !dev_valid_name(buffer) || | |
8a540ff9 | 1454 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1455 | goto err_no_cmd; |
1456 | ||
1457 | /* Get the pointer to that interface if it exists */ | |
1458 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1459 | if (!sdev) | |
1460 | goto err_no_cmd; | |
1461 | ||
bb1d9123 AG |
1462 | /* Search for thes slave and check for duplicate qids */ |
1463 | update_slave = NULL; | |
9caff1e7 | 1464 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1465 | if (sdev == slave->dev) |
1466 | /* | |
1467 | * We don't need to check the matching | |
1468 | * slave for dups, since we're overwriting it | |
1469 | */ | |
1470 | update_slave = slave; | |
1471 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1472 | goto err_no_cmd; |
bb1d9123 AG |
1473 | } |
1474 | } | |
1475 | ||
1476 | if (!update_slave) | |
4d1ae5fb | 1477 | goto err_no_cmd; |
bb1d9123 AG |
1478 | |
1479 | /* Actually set the qids for the slave */ | |
1480 | update_slave->queue_id = qid; | |
1481 | ||
bb1d9123 AG |
1482 | out: |
1483 | rtnl_unlock(); | |
1484 | return ret; | |
1485 | ||
bb1d9123 AG |
1486 | err_no_cmd: |
1487 | pr_info("invalid input for queue_id set for %s.\n", | |
1488 | bond->dev->name); | |
1489 | ret = -EPERM; | |
1490 | goto out; | |
1491 | } | |
1492 | ||
1493 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1494 | bonding_store_queue_id); | |
1495 | ||
1496 | ||
ebd8e497 AG |
1497 | /* |
1498 | * Show and set the all_slaves_active flag. | |
1499 | */ | |
1500 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1501 | struct device_attribute *attr, | |
1502 | char *buf) | |
1503 | { | |
1504 | struct bonding *bond = to_bond(d); | |
1505 | ||
1506 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1507 | } | |
1508 | ||
1509 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1510 | struct device_attribute *attr, | |
1511 | const char *buf, size_t count) | |
1512 | { | |
ebd8e497 | 1513 | struct bonding *bond = to_bond(d); |
dec1e90e | 1514 | int new_value, ret = count; |
9caff1e7 | 1515 | struct list_head *iter; |
ebd8e497 AG |
1516 | struct slave *slave; |
1517 | ||
4d1ae5fb | 1518 | if (!rtnl_trylock()) |
1519 | return restart_syscall(); | |
1520 | ||
ebd8e497 AG |
1521 | if (sscanf(buf, "%d", &new_value) != 1) { |
1522 | pr_err("%s: no all_slaves_active value specified.\n", | |
1523 | bond->dev->name); | |
1524 | ret = -EINVAL; | |
1525 | goto out; | |
1526 | } | |
1527 | ||
1528 | if (new_value == bond->params.all_slaves_active) | |
1529 | goto out; | |
1530 | ||
1531 | if ((new_value == 0) || (new_value == 1)) { | |
1532 | bond->params.all_slaves_active = new_value; | |
1533 | } else { | |
1534 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1535 | bond->dev->name, new_value); | |
1536 | ret = -EINVAL; | |
1537 | goto out; | |
1538 | } | |
b76cdba9 | 1539 | |
9caff1e7 | 1540 | bond_for_each_slave(bond, slave, iter) { |
e30bc066 | 1541 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1542 | if (new_value) |
2d7011ca | 1543 | slave->inactive = 0; |
ebd8e497 | 1544 | else |
2d7011ca | 1545 | slave->inactive = 1; |
ebd8e497 AG |
1546 | } |
1547 | } | |
1548 | out: | |
4d1ae5fb | 1549 | rtnl_unlock(); |
672bda33 | 1550 | return ret; |
ebd8e497 AG |
1551 | } |
1552 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1553 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1554 | |
c2952c31 FL |
1555 | /* |
1556 | * Show and set the number of IGMP membership reports to send on link failure | |
1557 | */ | |
1558 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1559 | struct device_attribute *attr, |
1560 | char *buf) | |
c2952c31 FL |
1561 | { |
1562 | struct bonding *bond = to_bond(d); | |
1563 | ||
1564 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1565 | } | |
1566 | ||
1567 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1568 | struct device_attribute *attr, |
1569 | const char *buf, size_t count) | |
c2952c31 FL |
1570 | { |
1571 | int new_value, ret = count; | |
1572 | struct bonding *bond = to_bond(d); | |
1573 | ||
1574 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1575 | pr_err("%s: no resend_igmp value specified.\n", | |
1576 | bond->dev->name); | |
1577 | ret = -EINVAL; | |
1578 | goto out; | |
1579 | } | |
1580 | ||
94265cf5 | 1581 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1582 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1583 | bond->dev->name, new_value); | |
1584 | ret = -EINVAL; | |
1585 | goto out; | |
1586 | } | |
1587 | ||
1588 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1589 | bond->dev->name, new_value); | |
1590 | bond->params.resend_igmp = new_value; | |
1591 | out: | |
1592 | return ret; | |
1593 | } | |
1594 | ||
1595 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1596 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1597 | ||
7eacd038 NH |
1598 | |
1599 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1600 | struct device_attribute *attr, | |
1601 | char *buf) | |
1602 | { | |
1603 | struct bonding *bond = to_bond(d); | |
1604 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1605 | } | |
1606 | ||
1607 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1608 | struct device_attribute *attr, | |
1609 | const char *buf, size_t count) | |
1610 | { | |
1611 | struct bonding *bond = to_bond(d); | |
1612 | int new_value, ret = count; | |
1613 | ||
1614 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1615 | pr_err("%s: no lp interval value specified.\n", | |
1616 | bond->dev->name); | |
1617 | ret = -EINVAL; | |
1618 | goto out; | |
1619 | } | |
1620 | ||
1621 | if (new_value <= 0) { | |
1622 | pr_err ("%s: lp_interval must be between 1 and %d\n", | |
1623 | bond->dev->name, INT_MAX); | |
1624 | ret = -EINVAL; | |
1625 | goto out; | |
1626 | } | |
1627 | ||
1628 | bond->params.lp_interval = new_value; | |
1629 | out: | |
1630 | return ret; | |
1631 | } | |
1632 | ||
1633 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1634 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1635 | ||
73958329 NA |
1636 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
1637 | struct device_attribute *attr, | |
1638 | char *buf) | |
1639 | { | |
1640 | struct bonding *bond = to_bond(d); | |
1641 | int packets_per_slave = bond->params.packets_per_slave; | |
1642 | ||
1643 | if (packets_per_slave > 1) | |
1644 | packets_per_slave = reciprocal_value(packets_per_slave); | |
1645 | ||
1646 | return sprintf(buf, "%d\n", packets_per_slave); | |
1647 | } | |
1648 | ||
1649 | static ssize_t bonding_store_packets_per_slave(struct device *d, | |
1650 | struct device_attribute *attr, | |
1651 | const char *buf, size_t count) | |
1652 | { | |
1653 | struct bonding *bond = to_bond(d); | |
1654 | int new_value, ret = count; | |
1655 | ||
1656 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1657 | pr_err("%s: no packets_per_slave value specified.\n", | |
1658 | bond->dev->name); | |
1659 | ret = -EINVAL; | |
1660 | goto out; | |
1661 | } | |
1662 | if (new_value < 0 || new_value > USHRT_MAX) { | |
1663 | pr_err("%s: packets_per_slave must be between 0 and %u\n", | |
1664 | bond->dev->name, USHRT_MAX); | |
1665 | ret = -EINVAL; | |
1666 | goto out; | |
1667 | } | |
1668 | if (bond->params.mode != BOND_MODE_ROUNDROBIN) | |
1669 | pr_warn("%s: Warning: packets_per_slave has effect only in balance-rr mode\n", | |
1670 | bond->dev->name); | |
1671 | if (new_value > 1) | |
1672 | bond->params.packets_per_slave = reciprocal_value(new_value); | |
1673 | else | |
1674 | bond->params.packets_per_slave = new_value; | |
1675 | out: | |
1676 | return ret; | |
1677 | } | |
1678 | ||
1679 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, | |
1680 | bonding_show_packets_per_slave, | |
1681 | bonding_store_packets_per_slave); | |
1682 | ||
b76cdba9 | 1683 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1684 | &dev_attr_slaves.attr, |
1685 | &dev_attr_mode.attr, | |
dd957c57 | 1686 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1687 | &dev_attr_arp_validate.attr, |
8599b52e | 1688 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1689 | &dev_attr_arp_interval.attr, |
1690 | &dev_attr_arp_ip_target.attr, | |
1691 | &dev_attr_downdelay.attr, | |
1692 | &dev_attr_updelay.attr, | |
1693 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1694 | &dev_attr_ad_select.attr, |
43cb76d9 | 1695 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1696 | &dev_attr_num_grat_arp.attr, |
1697 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1698 | &dev_attr_miimon.attr, |
1699 | &dev_attr_primary.attr, | |
a549952a | 1700 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1701 | &dev_attr_use_carrier.attr, |
1702 | &dev_attr_active_slave.attr, | |
1703 | &dev_attr_mii_status.attr, | |
1704 | &dev_attr_ad_aggregator.attr, | |
1705 | &dev_attr_ad_num_ports.attr, | |
1706 | &dev_attr_ad_actor_key.attr, | |
1707 | &dev_attr_ad_partner_key.attr, | |
1708 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1709 | &dev_attr_queue_id.attr, |
ebd8e497 | 1710 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1711 | &dev_attr_resend_igmp.attr, |
655f8919 | 1712 | &dev_attr_min_links.attr, |
7eacd038 | 1713 | &dev_attr_lp_interval.attr, |
73958329 | 1714 | &dev_attr_packets_per_slave.attr, |
b76cdba9 MW |
1715 | NULL, |
1716 | }; | |
1717 | ||
1718 | static struct attribute_group bonding_group = { | |
1719 | .name = "bonding", | |
1720 | .attrs = per_bond_attrs, | |
1721 | }; | |
1722 | ||
1723 | /* | |
1724 | * Initialize sysfs. This sets up the bonding_masters file in | |
1725 | * /sys/class/net. | |
1726 | */ | |
4c22400a | 1727 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1728 | { |
b8a9787e | 1729 | int ret; |
b76cdba9 | 1730 | |
4c22400a | 1731 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1732 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 1733 | |
58292cbe TH |
1734 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
1735 | bn->net); | |
877cbd36 JV |
1736 | /* |
1737 | * Permit multiple loads of the module by ignoring failures to | |
1738 | * create the bonding_masters sysfs file. Bonding devices | |
1739 | * created by second or subsequent loads of the module will | |
1740 | * not be listed in, or controllable by, bonding_masters, but | |
1741 | * will have the usual "bonding" sysfs directory. | |
1742 | * | |
1743 | * This is done to preserve backwards compatibility for | |
1744 | * initscripts/sysconfig, which load bonding multiple times to | |
1745 | * configure multiple bonding devices. | |
1746 | */ | |
1747 | if (ret == -EEXIST) { | |
38d2f38b | 1748 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1749 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1750 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1751 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1752 | class_attr_bonding_masters.attr.name); |
130aa61a | 1753 | ret = 0; |
877cbd36 | 1754 | } |
b76cdba9 MW |
1755 | |
1756 | return ret; | |
1757 | ||
1758 | } | |
1759 | ||
1760 | /* | |
1761 | * Remove /sys/class/net/bonding_masters. | |
1762 | */ | |
4c22400a | 1763 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1764 | { |
58292cbe | 1765 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
1766 | } |
1767 | ||
1768 | /* | |
1769 | * Initialize sysfs for each bond. This sets up and registers | |
1770 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1771 | */ | |
6151b3d4 | 1772 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1773 | { |
6151b3d4 | 1774 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1775 | } |
1776 |