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 | } | |
fe9d04af | 526 | if (BOND_NO_USES_ARP(bond->params.mode)) { |
ec9f1d15 | 527 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB/802.3ad. Only MII monitoring is supported on %s.\n", |
c5cb002f AG |
528 | bond->dev->name, bond->dev->name); |
529 | ret = -EINVAL; | |
530 | goto out; | |
531 | } | |
a4aee5c8 JP |
532 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
533 | bond->dev->name, new_value); | |
b76cdba9 | 534 | bond->params.arp_interval = new_value; |
1bc7db16 | 535 | if (new_value) { |
536 | if (bond->params.miimon) { | |
537 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
538 | bond->dev->name, bond->dev->name); | |
539 | bond->params.miimon = 0; | |
540 | } | |
541 | if (!bond->params.arp_targets[0]) | |
542 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
543 | bond->dev->name); | |
b76cdba9 MW |
544 | } |
545 | if (bond->dev->flags & IFF_UP) { | |
546 | /* If the interface is up, we may need to fire off | |
547 | * the ARP timer. If the interface is down, the | |
548 | * timer will get fired off when the open function | |
549 | * is called. | |
550 | */ | |
1bc7db16 | 551 | if (!new_value) { |
5bb9e0b5 | 552 | if (bond->params.arp_validate) |
553 | bond->recv_probe = NULL; | |
1bc7db16 | 554 | cancel_delayed_work_sync(&bond->arp_work); |
555 | } else { | |
5bb9e0b5 | 556 | /* arp_validate can be set only in active-backup mode */ |
557 | if (bond->params.arp_validate) | |
558 | bond->recv_probe = bond_arp_rcv; | |
1bc7db16 | 559 | cancel_delayed_work_sync(&bond->mii_work); |
560 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
561 | } | |
b76cdba9 | 562 | } |
b76cdba9 | 563 | out: |
fbb0c41b | 564 | rtnl_unlock(); |
b76cdba9 MW |
565 | return ret; |
566 | } | |
3d632c3f SH |
567 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
568 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
569 | |
570 | /* | |
571 | * Show and set the arp targets. | |
572 | */ | |
43cb76d9 GKH |
573 | static ssize_t bonding_show_arp_targets(struct device *d, |
574 | struct device_attribute *attr, | |
575 | char *buf) | |
b76cdba9 MW |
576 | { |
577 | int i, res = 0; | |
43cb76d9 | 578 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
579 | |
580 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
581 | if (bond->params.arp_targets[i]) | |
63779436 HH |
582 | res += sprintf(buf + res, "%pI4 ", |
583 | &bond->params.arp_targets[i]); | |
b76cdba9 | 584 | } |
1dcdcd69 WF |
585 | if (res) |
586 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
587 | return res; |
588 | } | |
589 | ||
43cb76d9 GKH |
590 | static ssize_t bonding_store_arp_targets(struct device *d, |
591 | struct device_attribute *attr, | |
592 | const char *buf, size_t count) | |
b76cdba9 | 593 | { |
43cb76d9 | 594 | struct bonding *bond = to_bond(d); |
9caff1e7 | 595 | struct list_head *iter; |
8599b52e VF |
596 | struct slave *slave; |
597 | __be32 newtarget, *targets; | |
598 | unsigned long *targets_rx; | |
599 | int ind, i, j, ret = -EINVAL; | |
b76cdba9 | 600 | |
4d1ae5fb | 601 | if (!rtnl_trylock()) |
602 | return restart_syscall(); | |
603 | ||
b76cdba9 | 604 | targets = bond->params.arp_targets; |
f9de11a1 WW |
605 | if (!in4_pton(buf + 1, -1, (u8 *)&newtarget, -1, NULL) || |
606 | IS_IP_TARGET_UNUSABLE_ADDRESS(newtarget)) { | |
607 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", | |
608 | bond->dev->name, &newtarget); | |
609 | goto out; | |
610 | } | |
b76cdba9 MW |
611 | /* look for adds */ |
612 | if (buf[0] == '+') { | |
87a7b84b VF |
613 | if (bond_get_targets_ip(targets, newtarget) != -1) { /* dup */ |
614 | pr_err("%s: ARP target %pI4 is already present\n", | |
615 | bond->dev->name, &newtarget); | |
616 | goto out; | |
b76cdba9 | 617 | } |
87a7b84b | 618 | |
8599b52e VF |
619 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ |
620 | if (ind == -1) { | |
a4aee5c8 | 621 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 | 622 | bond->dev->name); |
b76cdba9 MW |
623 | goto out; |
624 | } | |
625 | ||
87a7b84b VF |
626 | pr_info("%s: adding ARP target %pI4.\n", bond->dev->name, |
627 | &newtarget); | |
8599b52e VF |
628 | /* not to race with bond_arp_rcv */ |
629 | write_lock_bh(&bond->lock); | |
9caff1e7 | 630 | bond_for_each_slave(bond, slave, iter) |
8599b52e VF |
631 | slave->target_last_arp_rx[ind] = jiffies; |
632 | targets[ind] = newtarget; | |
633 | write_unlock_bh(&bond->lock); | |
3d632c3f | 634 | } else if (buf[0] == '-') { |
8599b52e VF |
635 | ind = bond_get_targets_ip(targets, newtarget); |
636 | if (ind == -1) { | |
637 | pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", | |
a4aee5c8 | 638 | bond->dev->name, &newtarget); |
b76cdba9 MW |
639 | goto out; |
640 | } | |
87a7b84b | 641 | |
8599b52e VF |
642 | if (ind == 0 && !targets[1] && bond->params.arp_interval) |
643 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
644 | bond->dev->name); | |
645 | ||
87a7b84b VF |
646 | pr_info("%s: removing ARP target %pI4.\n", bond->dev->name, |
647 | &newtarget); | |
8599b52e VF |
648 | |
649 | write_lock_bh(&bond->lock); | |
9caff1e7 | 650 | bond_for_each_slave(bond, slave, iter) { |
8599b52e VF |
651 | targets_rx = slave->target_last_arp_rx; |
652 | j = ind; | |
653 | for (; (j < BOND_MAX_ARP_TARGETS-1) && targets[j+1]; j++) | |
654 | targets_rx[j] = targets_rx[j+1]; | |
655 | targets_rx[j] = 0; | |
656 | } | |
657 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
87a7b84b VF |
658 | targets[i] = targets[i+1]; |
659 | targets[i] = 0; | |
8599b52e | 660 | write_unlock_bh(&bond->lock); |
3d632c3f | 661 | } else { |
a4aee5c8 JP |
662 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
663 | bond->dev->name); | |
b76cdba9 MW |
664 | ret = -EPERM; |
665 | goto out; | |
666 | } | |
667 | ||
87a7b84b | 668 | ret = count; |
b76cdba9 | 669 | out: |
4d1ae5fb | 670 | rtnl_unlock(); |
b76cdba9 MW |
671 | return ret; |
672 | } | |
43cb76d9 | 673 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
674 | |
675 | /* | |
676 | * Show and set the up and down delays. These must be multiples of the | |
677 | * MII monitoring value, and are stored internally as the multiplier. | |
678 | * Thus, we must translate to MS for the real world. | |
679 | */ | |
43cb76d9 GKH |
680 | static ssize_t bonding_show_downdelay(struct device *d, |
681 | struct device_attribute *attr, | |
682 | char *buf) | |
b76cdba9 | 683 | { |
43cb76d9 | 684 | struct bonding *bond = to_bond(d); |
b76cdba9 | 685 | |
7bd46508 | 686 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
687 | } |
688 | ||
43cb76d9 GKH |
689 | static ssize_t bonding_store_downdelay(struct device *d, |
690 | struct device_attribute *attr, | |
691 | const char *buf, size_t count) | |
b76cdba9 MW |
692 | { |
693 | int new_value, ret = count; | |
43cb76d9 | 694 | struct bonding *bond = to_bond(d); |
b76cdba9 | 695 | |
b869ccfa NA |
696 | if (!rtnl_trylock()) |
697 | return restart_syscall(); | |
b76cdba9 | 698 | if (!(bond->params.miimon)) { |
a4aee5c8 | 699 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
700 | bond->dev->name); |
701 | ret = -EPERM; | |
702 | goto out; | |
703 | } | |
704 | ||
705 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 706 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
707 | ret = -EINVAL; |
708 | goto out; | |
709 | } | |
710 | if (new_value < 0) { | |
a4aee5c8 | 711 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 712 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
713 | ret = -EINVAL; |
714 | goto out; | |
715 | } else { | |
716 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 717 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
718 | bond->dev->name, new_value, |
719 | bond->params.miimon, | |
720 | (new_value / bond->params.miimon) * | |
721 | bond->params.miimon); | |
b76cdba9 MW |
722 | } |
723 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
724 | pr_info("%s: Setting down delay to %d.\n", |
725 | bond->dev->name, | |
726 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
727 | |
728 | } | |
729 | ||
730 | out: | |
b869ccfa | 731 | rtnl_unlock(); |
b76cdba9 MW |
732 | return ret; |
733 | } | |
3d632c3f SH |
734 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
735 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 736 | |
43cb76d9 GKH |
737 | static ssize_t bonding_show_updelay(struct device *d, |
738 | struct device_attribute *attr, | |
739 | char *buf) | |
b76cdba9 | 740 | { |
43cb76d9 | 741 | struct bonding *bond = to_bond(d); |
b76cdba9 | 742 | |
7bd46508 | 743 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
744 | |
745 | } | |
746 | ||
43cb76d9 GKH |
747 | static ssize_t bonding_store_updelay(struct device *d, |
748 | struct device_attribute *attr, | |
749 | const char *buf, size_t count) | |
b76cdba9 MW |
750 | { |
751 | int new_value, ret = count; | |
43cb76d9 | 752 | struct bonding *bond = to_bond(d); |
b76cdba9 | 753 | |
b869ccfa NA |
754 | if (!rtnl_trylock()) |
755 | return restart_syscall(); | |
b76cdba9 | 756 | if (!(bond->params.miimon)) { |
a4aee5c8 | 757 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
758 | bond->dev->name); |
759 | ret = -EPERM; | |
760 | goto out; | |
761 | } | |
762 | ||
763 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 764 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
765 | bond->dev->name); |
766 | ret = -EINVAL; | |
767 | goto out; | |
768 | } | |
769 | if (new_value < 0) { | |
1bc7db16 | 770 | pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n", |
771 | bond->dev->name, new_value, 0, INT_MAX); | |
b76cdba9 MW |
772 | ret = -EINVAL; |
773 | goto out; | |
774 | } else { | |
775 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 776 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
777 | bond->dev->name, new_value, |
778 | bond->params.miimon, | |
779 | (new_value / bond->params.miimon) * | |
780 | bond->params.miimon); | |
b76cdba9 MW |
781 | } |
782 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
783 | pr_info("%s: Setting up delay to %d.\n", |
784 | bond->dev->name, | |
785 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
786 | } |
787 | ||
788 | out: | |
b869ccfa | 789 | rtnl_unlock(); |
b76cdba9 MW |
790 | return ret; |
791 | } | |
3d632c3f SH |
792 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
793 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
794 | |
795 | /* | |
796 | * Show and set the LACP interval. Interface must be down, and the mode | |
797 | * must be set to 802.3ad mode. | |
798 | */ | |
43cb76d9 GKH |
799 | static ssize_t bonding_show_lacp(struct device *d, |
800 | struct device_attribute *attr, | |
801 | char *buf) | |
b76cdba9 | 802 | { |
43cb76d9 | 803 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
804 | |
805 | return sprintf(buf, "%s %d\n", | |
806 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 807 | bond->params.lacp_fast); |
b76cdba9 MW |
808 | } |
809 | ||
43cb76d9 GKH |
810 | static ssize_t bonding_store_lacp(struct device *d, |
811 | struct device_attribute *attr, | |
812 | const char *buf, size_t count) | |
b76cdba9 | 813 | { |
43cb76d9 | 814 | struct bonding *bond = to_bond(d); |
c509316b | 815 | int new_value, ret = count; |
816 | ||
817 | if (!rtnl_trylock()) | |
818 | return restart_syscall(); | |
b76cdba9 MW |
819 | |
820 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 821 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
822 | bond->dev->name); |
823 | ret = -EPERM; | |
824 | goto out; | |
825 | } | |
826 | ||
827 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 828 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
829 | bond->dev->name); |
830 | ret = -EPERM; | |
831 | goto out; | |
832 | } | |
833 | ||
ece95f7f | 834 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
835 | |
836 | if ((new_value == 1) || (new_value == 0)) { | |
837 | bond->params.lacp_fast = new_value; | |
ba824a8b | 838 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 839 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
840 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
841 | new_value); | |
b76cdba9 | 842 | } else { |
a4aee5c8 | 843 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 844 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
845 | ret = -EINVAL; |
846 | } | |
847 | out: | |
c509316b | 848 | rtnl_unlock(); |
849 | ||
b76cdba9 MW |
850 | return ret; |
851 | } | |
3d632c3f SH |
852 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
853 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 854 | |
655f8919 | 855 | static ssize_t bonding_show_min_links(struct device *d, |
856 | struct device_attribute *attr, | |
857 | char *buf) | |
858 | { | |
859 | struct bonding *bond = to_bond(d); | |
860 | ||
861 | return sprintf(buf, "%d\n", bond->params.min_links); | |
862 | } | |
863 | ||
864 | static ssize_t bonding_store_min_links(struct device *d, | |
865 | struct device_attribute *attr, | |
866 | const char *buf, size_t count) | |
867 | { | |
868 | struct bonding *bond = to_bond(d); | |
869 | int ret; | |
870 | unsigned int new_value; | |
871 | ||
872 | ret = kstrtouint(buf, 0, &new_value); | |
873 | if (ret < 0) { | |
874 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
875 | bond->dev->name, buf); | |
876 | return ret; | |
877 | } | |
878 | ||
879 | pr_info("%s: Setting min links value to %u\n", | |
880 | bond->dev->name, new_value); | |
881 | bond->params.min_links = new_value; | |
882 | return count; | |
883 | } | |
884 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
885 | bonding_show_min_links, bonding_store_min_links); | |
886 | ||
fd989c83 JV |
887 | static ssize_t bonding_show_ad_select(struct device *d, |
888 | struct device_attribute *attr, | |
889 | char *buf) | |
890 | { | |
891 | struct bonding *bond = to_bond(d); | |
892 | ||
893 | return sprintf(buf, "%s %d\n", | |
894 | ad_select_tbl[bond->params.ad_select].modename, | |
895 | bond->params.ad_select); | |
896 | } | |
897 | ||
898 | ||
899 | static ssize_t bonding_store_ad_select(struct device *d, | |
900 | struct device_attribute *attr, | |
901 | const char *buf, size_t count) | |
902 | { | |
903 | int new_value, ret = count; | |
904 | struct bonding *bond = to_bond(d); | |
905 | ||
906 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
907 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
908 | bond->dev->name); | |
fd989c83 JV |
909 | ret = -EPERM; |
910 | goto out; | |
911 | } | |
912 | ||
913 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
914 | ||
915 | if (new_value != -1) { | |
916 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
917 | pr_info("%s: Setting ad_select to %s (%d).\n", |
918 | bond->dev->name, ad_select_tbl[new_value].modename, | |
919 | new_value); | |
fd989c83 | 920 | } else { |
a4aee5c8 | 921 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
922 | bond->dev->name, (int)strlen(buf) - 1, buf); |
923 | ret = -EINVAL; | |
924 | } | |
925 | out: | |
926 | return ret; | |
927 | } | |
3d632c3f SH |
928 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
929 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 930 | |
ad246c99 BH |
931 | /* |
932 | * Show and set the number of peer notifications to send after a failover event. | |
933 | */ | |
934 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
935 | struct device_attribute *attr, | |
936 | char *buf) | |
937 | { | |
938 | struct bonding *bond = to_bond(d); | |
939 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
940 | } | |
941 | ||
942 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
943 | struct device_attribute *attr, | |
944 | const char *buf, size_t count) | |
945 | { | |
946 | struct bonding *bond = to_bond(d); | |
947 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
948 | return err ? err : count; | |
949 | } | |
950 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
951 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
952 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
953 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
954 | ||
b76cdba9 MW |
955 | /* |
956 | * Show and set the MII monitor interval. There are two tricky bits | |
957 | * here. First, if MII monitoring is activated, then we must disable | |
958 | * ARP monitoring. Second, if the timer isn't running, we must | |
959 | * start it. | |
960 | */ | |
43cb76d9 GKH |
961 | static ssize_t bonding_show_miimon(struct device *d, |
962 | struct device_attribute *attr, | |
963 | char *buf) | |
b76cdba9 | 964 | { |
43cb76d9 | 965 | struct bonding *bond = to_bond(d); |
b76cdba9 | 966 | |
7bd46508 | 967 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
968 | } |
969 | ||
43cb76d9 GKH |
970 | static ssize_t bonding_store_miimon(struct device *d, |
971 | struct device_attribute *attr, | |
972 | const char *buf, size_t count) | |
b76cdba9 MW |
973 | { |
974 | int new_value, ret = count; | |
43cb76d9 | 975 | struct bonding *bond = to_bond(d); |
b76cdba9 | 976 | |
fbb0c41b | 977 | if (!rtnl_trylock()) |
978 | return restart_syscall(); | |
b76cdba9 | 979 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 980 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
981 | bond->dev->name); |
982 | ret = -EINVAL; | |
983 | goto out; | |
984 | } | |
985 | if (new_value < 0) { | |
a4aee5c8 | 986 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 987 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
988 | ret = -EINVAL; |
989 | goto out; | |
1bc7db16 | 990 | } |
991 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
992 | bond->dev->name, new_value); | |
993 | bond->params.miimon = new_value; | |
994 | if (bond->params.updelay) | |
995 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
996 | bond->dev->name, | |
997 | bond->params.updelay * bond->params.miimon); | |
998 | if (bond->params.downdelay) | |
999 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
1000 | bond->dev->name, | |
1001 | bond->params.downdelay * bond->params.miimon); | |
1002 | if (new_value && bond->params.arp_interval) { | |
1003 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", | |
1004 | bond->dev->name); | |
1005 | bond->params.arp_interval = 0; | |
1006 | if (bond->params.arp_validate) | |
1007 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
1008 | } | |
1009 | if (bond->dev->flags & IFF_UP) { | |
1010 | /* If the interface is up, we may need to fire off | |
1011 | * the MII timer. If the interface is down, the | |
1012 | * timer will get fired off when the open function | |
1013 | * is called. | |
1014 | */ | |
1015 | if (!new_value) { | |
1016 | cancel_delayed_work_sync(&bond->mii_work); | |
1017 | } else { | |
fbb0c41b | 1018 | cancel_delayed_work_sync(&bond->arp_work); |
1019 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
b76cdba9 MW |
1020 | } |
1021 | } | |
1022 | out: | |
fbb0c41b | 1023 | rtnl_unlock(); |
b76cdba9 MW |
1024 | return ret; |
1025 | } | |
3d632c3f SH |
1026 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1027 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1028 | |
1029 | /* | |
1030 | * Show and set the primary slave. The store function is much | |
1031 | * simpler than bonding_store_slaves function because it only needs to | |
1032 | * handle one interface name. | |
1033 | * The bond must be a mode that supports a primary for this be | |
1034 | * set. | |
1035 | */ | |
43cb76d9 GKH |
1036 | static ssize_t bonding_show_primary(struct device *d, |
1037 | struct device_attribute *attr, | |
1038 | char *buf) | |
b76cdba9 MW |
1039 | { |
1040 | int count = 0; | |
43cb76d9 | 1041 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1042 | |
1043 | if (bond->primary_slave) | |
7bd46508 | 1044 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1045 | |
1046 | return count; | |
1047 | } | |
1048 | ||
43cb76d9 GKH |
1049 | static ssize_t bonding_store_primary(struct device *d, |
1050 | struct device_attribute *attr, | |
1051 | const char *buf, size_t count) | |
b76cdba9 | 1052 | { |
43cb76d9 | 1053 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1054 | struct list_head *iter; |
f4bb2e9c | 1055 | char ifname[IFNAMSIZ]; |
dec1e90e | 1056 | struct slave *slave; |
b76cdba9 | 1057 | |
496a60cd EB |
1058 | if (!rtnl_trylock()) |
1059 | return restart_syscall(); | |
e843fa50 | 1060 | block_netpoll_tx(); |
e934dd78 JV |
1061 | read_lock(&bond->lock); |
1062 | write_lock_bh(&bond->curr_slave_lock); | |
1063 | ||
b76cdba9 | 1064 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1065 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1066 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1067 | goto out; |
1068 | } | |
b76cdba9 | 1069 | |
eb6e98a1 | 1070 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1071 | |
f4bb2e9c AG |
1072 | /* check to see if we are clearing primary */ |
1073 | if (!strlen(ifname) || buf[0] == '\n') { | |
1074 | pr_info("%s: Setting primary slave to None.\n", | |
1075 | bond->dev->name); | |
1076 | bond->primary_slave = NULL; | |
eb492f74 | 1077 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
f4bb2e9c AG |
1078 | bond_select_active_slave(bond); |
1079 | goto out; | |
1080 | } | |
1081 | ||
9caff1e7 | 1082 | bond_for_each_slave(bond, slave, iter) { |
f4bb2e9c AG |
1083 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
1084 | pr_info("%s: Setting %s as primary slave.\n", | |
1085 | bond->dev->name, slave->dev->name); | |
1086 | bond->primary_slave = slave; | |
1087 | strcpy(bond->params.primary, slave->dev->name); | |
1088 | bond_select_active_slave(bond); | |
1089 | goto out; | |
b76cdba9 MW |
1090 | } |
1091 | } | |
f4bb2e9c | 1092 | |
8a93664d WP |
1093 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1094 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1095 | ||
1096 | pr_info("%s: Recording %s as primary, " | |
1097 | "but it has not been enslaved to %s yet.\n", | |
1098 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1099 | out: |
e934dd78 JV |
1100 | write_unlock_bh(&bond->curr_slave_lock); |
1101 | read_unlock(&bond->lock); | |
e843fa50 | 1102 | unblock_netpoll_tx(); |
6603a6f2 JV |
1103 | rtnl_unlock(); |
1104 | ||
b76cdba9 MW |
1105 | return count; |
1106 | } | |
3d632c3f SH |
1107 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1108 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1109 | |
a549952a JP |
1110 | /* |
1111 | * Show and set the primary_reselect flag. | |
1112 | */ | |
1113 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1114 | struct device_attribute *attr, | |
1115 | char *buf) | |
1116 | { | |
1117 | struct bonding *bond = to_bond(d); | |
1118 | ||
1119 | return sprintf(buf, "%s %d\n", | |
1120 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1121 | bond->params.primary_reselect); | |
1122 | } | |
1123 | ||
1124 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1125 | struct device_attribute *attr, | |
1126 | const char *buf, size_t count) | |
1127 | { | |
1128 | int new_value, ret = count; | |
1129 | struct bonding *bond = to_bond(d); | |
1130 | ||
1131 | if (!rtnl_trylock()) | |
1132 | return restart_syscall(); | |
1133 | ||
1134 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1135 | if (new_value < 0) { | |
a4aee5c8 | 1136 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1137 | bond->dev->name, |
1138 | (int) strlen(buf) - 1, buf); | |
1139 | ret = -EINVAL; | |
1140 | goto out; | |
1141 | } | |
1142 | ||
1143 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1144 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1145 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1146 | new_value); | |
1147 | ||
e843fa50 | 1148 | block_netpoll_tx(); |
a549952a JP |
1149 | read_lock(&bond->lock); |
1150 | write_lock_bh(&bond->curr_slave_lock); | |
1151 | bond_select_active_slave(bond); | |
1152 | write_unlock_bh(&bond->curr_slave_lock); | |
1153 | read_unlock(&bond->lock); | |
e843fa50 | 1154 | unblock_netpoll_tx(); |
a549952a JP |
1155 | out: |
1156 | rtnl_unlock(); | |
1157 | return ret; | |
1158 | } | |
1159 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1160 | bonding_show_primary_reselect, | |
1161 | bonding_store_primary_reselect); | |
1162 | ||
b76cdba9 MW |
1163 | /* |
1164 | * Show and set the use_carrier flag. | |
1165 | */ | |
43cb76d9 GKH |
1166 | static ssize_t bonding_show_carrier(struct device *d, |
1167 | struct device_attribute *attr, | |
1168 | char *buf) | |
b76cdba9 | 1169 | { |
43cb76d9 | 1170 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1171 | |
7bd46508 | 1172 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1173 | } |
1174 | ||
43cb76d9 GKH |
1175 | static ssize_t bonding_store_carrier(struct device *d, |
1176 | struct device_attribute *attr, | |
1177 | const char *buf, size_t count) | |
b76cdba9 MW |
1178 | { |
1179 | int new_value, ret = count; | |
43cb76d9 | 1180 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1181 | |
1182 | ||
1183 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1184 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1185 | bond->dev->name); |
1186 | ret = -EINVAL; | |
1187 | goto out; | |
1188 | } | |
1189 | if ((new_value == 0) || (new_value == 1)) { | |
1190 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1191 | pr_info("%s: Setting use_carrier to %d.\n", |
1192 | bond->dev->name, new_value); | |
b76cdba9 | 1193 | } else { |
a4aee5c8 JP |
1194 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1195 | bond->dev->name, new_value); | |
b76cdba9 MW |
1196 | } |
1197 | out: | |
672bda33 | 1198 | return ret; |
b76cdba9 | 1199 | } |
3d632c3f SH |
1200 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1201 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1202 | |
1203 | ||
1204 | /* | |
1205 | * Show and set currently active_slave. | |
1206 | */ | |
43cb76d9 GKH |
1207 | static ssize_t bonding_show_active_slave(struct device *d, |
1208 | struct device_attribute *attr, | |
1209 | char *buf) | |
b76cdba9 | 1210 | { |
43cb76d9 | 1211 | struct bonding *bond = to_bond(d); |
752d48b5 | 1212 | struct net_device *slave_dev; |
16cd0160 | 1213 | int count = 0; |
b76cdba9 | 1214 | |
278b2083 | 1215 | rcu_read_lock(); |
752d48b5 JP |
1216 | slave_dev = bond_option_active_slave_get_rcu(bond); |
1217 | if (slave_dev) | |
1218 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 1219 | rcu_read_unlock(); |
1220 | ||
b76cdba9 MW |
1221 | return count; |
1222 | } | |
1223 | ||
43cb76d9 GKH |
1224 | static ssize_t bonding_store_active_slave(struct device *d, |
1225 | struct device_attribute *attr, | |
1226 | const char *buf, size_t count) | |
b76cdba9 | 1227 | { |
d9e32b21 | 1228 | int ret; |
43cb76d9 | 1229 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 1230 | char ifname[IFNAMSIZ]; |
d9e32b21 | 1231 | struct net_device *dev; |
b76cdba9 | 1232 | |
496a60cd EB |
1233 | if (!rtnl_trylock()) |
1234 | return restart_syscall(); | |
e843fa50 | 1235 | |
c84e1590 | 1236 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c | 1237 | if (!strlen(ifname) || buf[0] == '\n') { |
d9e32b21 JP |
1238 | dev = NULL; |
1239 | } else { | |
1240 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
1241 | if (!dev) { | |
1242 | ret = -ENODEV; | |
1243 | goto out; | |
b76cdba9 | 1244 | } |
b76cdba9 | 1245 | } |
f4bb2e9c | 1246 | |
d9e32b21 JP |
1247 | ret = bond_option_active_slave_set(bond, dev); |
1248 | if (!ret) | |
1249 | ret = count; | |
e843fa50 | 1250 | |
d9e32b21 | 1251 | out: |
6603a6f2 JV |
1252 | rtnl_unlock(); |
1253 | ||
d9e32b21 | 1254 | return ret; |
b76cdba9 MW |
1255 | |
1256 | } | |
3d632c3f SH |
1257 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1258 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1259 | |
1260 | ||
1261 | /* | |
1262 | * Show link status of the bond interface. | |
1263 | */ | |
43cb76d9 GKH |
1264 | static ssize_t bonding_show_mii_status(struct device *d, |
1265 | struct device_attribute *attr, | |
1266 | char *buf) | |
b76cdba9 | 1267 | { |
43cb76d9 | 1268 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1269 | |
278b2083 | 1270 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 1271 | } |
43cb76d9 | 1272 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1273 | |
b76cdba9 MW |
1274 | /* |
1275 | * Show current 802.3ad aggregator ID. | |
1276 | */ | |
43cb76d9 GKH |
1277 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1278 | struct device_attribute *attr, | |
1279 | char *buf) | |
b76cdba9 MW |
1280 | { |
1281 | int count = 0; | |
43cb76d9 | 1282 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1283 | |
1284 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1285 | struct ad_info ad_info; | |
3d632c3f | 1286 | count = sprintf(buf, "%d\n", |
318debd8 | 1287 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1288 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1289 | } |
b76cdba9 MW |
1290 | |
1291 | return count; | |
1292 | } | |
43cb76d9 | 1293 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1294 | |
1295 | ||
1296 | /* | |
1297 | * Show number of active 802.3ad ports. | |
1298 | */ | |
43cb76d9 GKH |
1299 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1300 | struct device_attribute *attr, | |
1301 | char *buf) | |
b76cdba9 MW |
1302 | { |
1303 | int count = 0; | |
43cb76d9 | 1304 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1305 | |
1306 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1307 | struct ad_info ad_info; | |
3d632c3f | 1308 | count = sprintf(buf, "%d\n", |
318debd8 | 1309 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1310 | ? 0 : ad_info.ports); |
b76cdba9 | 1311 | } |
b76cdba9 MW |
1312 | |
1313 | return count; | |
1314 | } | |
43cb76d9 | 1315 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1316 | |
1317 | ||
1318 | /* | |
1319 | * Show current 802.3ad actor key. | |
1320 | */ | |
43cb76d9 GKH |
1321 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1322 | struct device_attribute *attr, | |
1323 | char *buf) | |
b76cdba9 MW |
1324 | { |
1325 | int count = 0; | |
43cb76d9 | 1326 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1327 | |
1328 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1329 | struct ad_info ad_info; | |
3d632c3f | 1330 | count = sprintf(buf, "%d\n", |
318debd8 | 1331 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1332 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1333 | } |
b76cdba9 MW |
1334 | |
1335 | return count; | |
1336 | } | |
43cb76d9 | 1337 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1338 | |
1339 | ||
1340 | /* | |
1341 | * Show current 802.3ad partner key. | |
1342 | */ | |
43cb76d9 GKH |
1343 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1344 | struct device_attribute *attr, | |
1345 | char *buf) | |
b76cdba9 MW |
1346 | { |
1347 | int count = 0; | |
43cb76d9 | 1348 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1349 | |
1350 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1351 | struct ad_info ad_info; | |
3d632c3f | 1352 | count = sprintf(buf, "%d\n", |
318debd8 | 1353 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1354 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1355 | } |
b76cdba9 MW |
1356 | |
1357 | return count; | |
1358 | } | |
43cb76d9 | 1359 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1360 | |
1361 | ||
1362 | /* | |
1363 | * Show current 802.3ad partner mac. | |
1364 | */ | |
43cb76d9 GKH |
1365 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1366 | struct device_attribute *attr, | |
1367 | char *buf) | |
b76cdba9 MW |
1368 | { |
1369 | int count = 0; | |
43cb76d9 | 1370 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1371 | |
1372 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1373 | struct ad_info ad_info; | |
3d632c3f | 1374 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1375 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1376 | } |
b76cdba9 MW |
1377 | |
1378 | return count; | |
1379 | } | |
43cb76d9 | 1380 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1381 | |
bb1d9123 AG |
1382 | /* |
1383 | * Show the queue_ids of the slaves in the current bond. | |
1384 | */ | |
1385 | static ssize_t bonding_show_queue_id(struct device *d, | |
1386 | struct device_attribute *attr, | |
1387 | char *buf) | |
1388 | { | |
bb1d9123 | 1389 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1390 | struct list_head *iter; |
dec1e90e | 1391 | struct slave *slave; |
1392 | int res = 0; | |
bb1d9123 AG |
1393 | |
1394 | if (!rtnl_trylock()) | |
1395 | return restart_syscall(); | |
1396 | ||
9caff1e7 | 1397 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1398 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1399 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1400 | if ((PAGE_SIZE - res) > 10) |
1401 | res = PAGE_SIZE - 10; | |
1402 | res += sprintf(buf + res, "++more++ "); | |
1403 | break; | |
1404 | } | |
1405 | res += sprintf(buf + res, "%s:%d ", | |
1406 | slave->dev->name, slave->queue_id); | |
1407 | } | |
bb1d9123 AG |
1408 | if (res) |
1409 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1410 | |
bb1d9123 | 1411 | rtnl_unlock(); |
dec1e90e | 1412 | |
bb1d9123 AG |
1413 | return res; |
1414 | } | |
1415 | ||
1416 | /* | |
1417 | * Set the queue_ids of the slaves in the current bond. The bond | |
1418 | * interface must be enslaved for this to work. | |
1419 | */ | |
1420 | static ssize_t bonding_store_queue_id(struct device *d, | |
1421 | struct device_attribute *attr, | |
1422 | const char *buffer, size_t count) | |
1423 | { | |
1424 | struct slave *slave, *update_slave; | |
1425 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1426 | struct list_head *iter; |
bb1d9123 | 1427 | u16 qid; |
dec1e90e | 1428 | int ret = count; |
bb1d9123 AG |
1429 | char *delim; |
1430 | struct net_device *sdev = NULL; | |
1431 | ||
1432 | if (!rtnl_trylock()) | |
1433 | return restart_syscall(); | |
1434 | ||
1435 | /* delim will point to queue id if successful */ | |
1436 | delim = strchr(buffer, ':'); | |
1437 | if (!delim) | |
1438 | goto err_no_cmd; | |
1439 | ||
1440 | /* | |
1441 | * Terminate string that points to device name and bump it | |
1442 | * up one, so we can read the queue id there. | |
1443 | */ | |
1444 | *delim = '\0'; | |
1445 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1446 | goto err_no_cmd; | |
1447 | ||
1448 | /* Check buffer length, valid ifname and queue id */ | |
1449 | if (strlen(buffer) > IFNAMSIZ || | |
1450 | !dev_valid_name(buffer) || | |
8a540ff9 | 1451 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1452 | goto err_no_cmd; |
1453 | ||
1454 | /* Get the pointer to that interface if it exists */ | |
1455 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1456 | if (!sdev) | |
1457 | goto err_no_cmd; | |
1458 | ||
bb1d9123 AG |
1459 | /* Search for thes slave and check for duplicate qids */ |
1460 | update_slave = NULL; | |
9caff1e7 | 1461 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1462 | if (sdev == slave->dev) |
1463 | /* | |
1464 | * We don't need to check the matching | |
1465 | * slave for dups, since we're overwriting it | |
1466 | */ | |
1467 | update_slave = slave; | |
1468 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1469 | goto err_no_cmd; |
bb1d9123 AG |
1470 | } |
1471 | } | |
1472 | ||
1473 | if (!update_slave) | |
4d1ae5fb | 1474 | goto err_no_cmd; |
bb1d9123 AG |
1475 | |
1476 | /* Actually set the qids for the slave */ | |
1477 | update_slave->queue_id = qid; | |
1478 | ||
bb1d9123 AG |
1479 | out: |
1480 | rtnl_unlock(); | |
1481 | return ret; | |
1482 | ||
bb1d9123 AG |
1483 | err_no_cmd: |
1484 | pr_info("invalid input for queue_id set for %s.\n", | |
1485 | bond->dev->name); | |
1486 | ret = -EPERM; | |
1487 | goto out; | |
1488 | } | |
1489 | ||
1490 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1491 | bonding_store_queue_id); | |
1492 | ||
1493 | ||
ebd8e497 AG |
1494 | /* |
1495 | * Show and set the all_slaves_active flag. | |
1496 | */ | |
1497 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1498 | struct device_attribute *attr, | |
1499 | char *buf) | |
1500 | { | |
1501 | struct bonding *bond = to_bond(d); | |
1502 | ||
1503 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1504 | } | |
1505 | ||
1506 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1507 | struct device_attribute *attr, | |
1508 | const char *buf, size_t count) | |
1509 | { | |
ebd8e497 | 1510 | struct bonding *bond = to_bond(d); |
dec1e90e | 1511 | int new_value, ret = count; |
9caff1e7 | 1512 | struct list_head *iter; |
ebd8e497 AG |
1513 | struct slave *slave; |
1514 | ||
4d1ae5fb | 1515 | if (!rtnl_trylock()) |
1516 | return restart_syscall(); | |
1517 | ||
ebd8e497 AG |
1518 | if (sscanf(buf, "%d", &new_value) != 1) { |
1519 | pr_err("%s: no all_slaves_active value specified.\n", | |
1520 | bond->dev->name); | |
1521 | ret = -EINVAL; | |
1522 | goto out; | |
1523 | } | |
1524 | ||
1525 | if (new_value == bond->params.all_slaves_active) | |
1526 | goto out; | |
1527 | ||
1528 | if ((new_value == 0) || (new_value == 1)) { | |
1529 | bond->params.all_slaves_active = new_value; | |
1530 | } else { | |
1531 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1532 | bond->dev->name, new_value); | |
1533 | ret = -EINVAL; | |
1534 | goto out; | |
1535 | } | |
b76cdba9 | 1536 | |
9caff1e7 | 1537 | bond_for_each_slave(bond, slave, iter) { |
e30bc066 | 1538 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1539 | if (new_value) |
2d7011ca | 1540 | slave->inactive = 0; |
ebd8e497 | 1541 | else |
2d7011ca | 1542 | slave->inactive = 1; |
ebd8e497 AG |
1543 | } |
1544 | } | |
1545 | out: | |
4d1ae5fb | 1546 | rtnl_unlock(); |
672bda33 | 1547 | return ret; |
ebd8e497 AG |
1548 | } |
1549 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1550 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1551 | |
c2952c31 FL |
1552 | /* |
1553 | * Show and set the number of IGMP membership reports to send on link failure | |
1554 | */ | |
1555 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1556 | struct device_attribute *attr, |
1557 | char *buf) | |
c2952c31 FL |
1558 | { |
1559 | struct bonding *bond = to_bond(d); | |
1560 | ||
1561 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1562 | } | |
1563 | ||
1564 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1565 | struct device_attribute *attr, |
1566 | const char *buf, size_t count) | |
c2952c31 FL |
1567 | { |
1568 | int new_value, ret = count; | |
1569 | struct bonding *bond = to_bond(d); | |
1570 | ||
1571 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1572 | pr_err("%s: no resend_igmp value specified.\n", | |
1573 | bond->dev->name); | |
1574 | ret = -EINVAL; | |
1575 | goto out; | |
1576 | } | |
1577 | ||
94265cf5 | 1578 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1579 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1580 | bond->dev->name, new_value); | |
1581 | ret = -EINVAL; | |
1582 | goto out; | |
1583 | } | |
1584 | ||
1585 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1586 | bond->dev->name, new_value); | |
1587 | bond->params.resend_igmp = new_value; | |
1588 | out: | |
1589 | return ret; | |
1590 | } | |
1591 | ||
1592 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1593 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1594 | ||
7eacd038 NH |
1595 | |
1596 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1597 | struct device_attribute *attr, | |
1598 | char *buf) | |
1599 | { | |
1600 | struct bonding *bond = to_bond(d); | |
1601 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1602 | } | |
1603 | ||
1604 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1605 | struct device_attribute *attr, | |
1606 | const char *buf, size_t count) | |
1607 | { | |
1608 | struct bonding *bond = to_bond(d); | |
1609 | int new_value, ret = count; | |
1610 | ||
1611 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1612 | pr_err("%s: no lp interval value specified.\n", | |
1613 | bond->dev->name); | |
1614 | ret = -EINVAL; | |
1615 | goto out; | |
1616 | } | |
1617 | ||
1618 | if (new_value <= 0) { | |
1619 | pr_err ("%s: lp_interval must be between 1 and %d\n", | |
1620 | bond->dev->name, INT_MAX); | |
1621 | ret = -EINVAL; | |
1622 | goto out; | |
1623 | } | |
1624 | ||
1625 | bond->params.lp_interval = new_value; | |
1626 | out: | |
1627 | return ret; | |
1628 | } | |
1629 | ||
1630 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1631 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1632 | ||
73958329 NA |
1633 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
1634 | struct device_attribute *attr, | |
1635 | char *buf) | |
1636 | { | |
1637 | struct bonding *bond = to_bond(d); | |
1638 | int packets_per_slave = bond->params.packets_per_slave; | |
1639 | ||
1640 | if (packets_per_slave > 1) | |
1641 | packets_per_slave = reciprocal_value(packets_per_slave); | |
1642 | ||
1643 | return sprintf(buf, "%d\n", packets_per_slave); | |
1644 | } | |
1645 | ||
1646 | static ssize_t bonding_store_packets_per_slave(struct device *d, | |
1647 | struct device_attribute *attr, | |
1648 | const char *buf, size_t count) | |
1649 | { | |
1650 | struct bonding *bond = to_bond(d); | |
1651 | int new_value, ret = count; | |
1652 | ||
1653 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1654 | pr_err("%s: no packets_per_slave value specified.\n", | |
1655 | bond->dev->name); | |
1656 | ret = -EINVAL; | |
1657 | goto out; | |
1658 | } | |
1659 | if (new_value < 0 || new_value > USHRT_MAX) { | |
1660 | pr_err("%s: packets_per_slave must be between 0 and %u\n", | |
1661 | bond->dev->name, USHRT_MAX); | |
1662 | ret = -EINVAL; | |
1663 | goto out; | |
1664 | } | |
1665 | if (bond->params.mode != BOND_MODE_ROUNDROBIN) | |
1666 | pr_warn("%s: Warning: packets_per_slave has effect only in balance-rr mode\n", | |
1667 | bond->dev->name); | |
1668 | if (new_value > 1) | |
1669 | bond->params.packets_per_slave = reciprocal_value(new_value); | |
1670 | else | |
1671 | bond->params.packets_per_slave = new_value; | |
1672 | out: | |
1673 | return ret; | |
1674 | } | |
1675 | ||
1676 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, | |
1677 | bonding_show_packets_per_slave, | |
1678 | bonding_store_packets_per_slave); | |
1679 | ||
b76cdba9 | 1680 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1681 | &dev_attr_slaves.attr, |
1682 | &dev_attr_mode.attr, | |
dd957c57 | 1683 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1684 | &dev_attr_arp_validate.attr, |
8599b52e | 1685 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1686 | &dev_attr_arp_interval.attr, |
1687 | &dev_attr_arp_ip_target.attr, | |
1688 | &dev_attr_downdelay.attr, | |
1689 | &dev_attr_updelay.attr, | |
1690 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1691 | &dev_attr_ad_select.attr, |
43cb76d9 | 1692 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1693 | &dev_attr_num_grat_arp.attr, |
1694 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1695 | &dev_attr_miimon.attr, |
1696 | &dev_attr_primary.attr, | |
a549952a | 1697 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1698 | &dev_attr_use_carrier.attr, |
1699 | &dev_attr_active_slave.attr, | |
1700 | &dev_attr_mii_status.attr, | |
1701 | &dev_attr_ad_aggregator.attr, | |
1702 | &dev_attr_ad_num_ports.attr, | |
1703 | &dev_attr_ad_actor_key.attr, | |
1704 | &dev_attr_ad_partner_key.attr, | |
1705 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1706 | &dev_attr_queue_id.attr, |
ebd8e497 | 1707 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1708 | &dev_attr_resend_igmp.attr, |
655f8919 | 1709 | &dev_attr_min_links.attr, |
7eacd038 | 1710 | &dev_attr_lp_interval.attr, |
73958329 | 1711 | &dev_attr_packets_per_slave.attr, |
b76cdba9 MW |
1712 | NULL, |
1713 | }; | |
1714 | ||
1715 | static struct attribute_group bonding_group = { | |
1716 | .name = "bonding", | |
1717 | .attrs = per_bond_attrs, | |
1718 | }; | |
1719 | ||
1720 | /* | |
1721 | * Initialize sysfs. This sets up the bonding_masters file in | |
1722 | * /sys/class/net. | |
1723 | */ | |
4c22400a | 1724 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1725 | { |
b8a9787e | 1726 | int ret; |
b76cdba9 | 1727 | |
4c22400a | 1728 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1729 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 1730 | |
58292cbe TH |
1731 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
1732 | bn->net); | |
877cbd36 JV |
1733 | /* |
1734 | * Permit multiple loads of the module by ignoring failures to | |
1735 | * create the bonding_masters sysfs file. Bonding devices | |
1736 | * created by second or subsequent loads of the module will | |
1737 | * not be listed in, or controllable by, bonding_masters, but | |
1738 | * will have the usual "bonding" sysfs directory. | |
1739 | * | |
1740 | * This is done to preserve backwards compatibility for | |
1741 | * initscripts/sysconfig, which load bonding multiple times to | |
1742 | * configure multiple bonding devices. | |
1743 | */ | |
1744 | if (ret == -EEXIST) { | |
38d2f38b | 1745 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1746 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1747 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1748 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1749 | class_attr_bonding_masters.attr.name); |
130aa61a | 1750 | ret = 0; |
877cbd36 | 1751 | } |
b76cdba9 MW |
1752 | |
1753 | return ret; | |
1754 | ||
1755 | } | |
1756 | ||
1757 | /* | |
1758 | * Remove /sys/class/net/bonding_masters. | |
1759 | */ | |
4c22400a | 1760 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1761 | { |
58292cbe | 1762 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
1763 | } |
1764 | ||
1765 | /* | |
1766 | * Initialize sysfs for each bond. This sets up and registers | |
1767 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1768 | */ | |
6151b3d4 | 1769 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1770 | { |
6151b3d4 | 1771 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1772 | } |
1773 |