Commit | Line | Data |
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b76cdba9 MW |
1 | /* |
2 | * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
11 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
16 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
17 | * | |
18 | * The full GNU General Public License is included in this distribution in the | |
19 | * file called LICENSE. | |
20 | * | |
b76cdba9 | 21 | */ |
a4aee5c8 JP |
22 | |
23 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
24 | ||
b76cdba9 MW |
25 | #include <linux/kernel.h> |
26 | #include <linux/module.h> | |
b76cdba9 | 27 | #include <linux/device.h> |
d43c36dc | 28 | #include <linux/sched.h> |
b76cdba9 MW |
29 | #include <linux/fs.h> |
30 | #include <linux/types.h> | |
31 | #include <linux/string.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/inetdevice.h> | |
34 | #include <linux/in.h> | |
35 | #include <linux/sysfs.h> | |
b76cdba9 MW |
36 | #include <linux/ctype.h> |
37 | #include <linux/inet.h> | |
38 | #include <linux/rtnetlink.h> | |
5c5129b5 | 39 | #include <linux/etherdevice.h> |
881d966b | 40 | #include <net/net_namespace.h> |
ec87fd3b EB |
41 | #include <net/netns/generic.h> |
42 | #include <linux/nsproxy.h> | |
b76cdba9 | 43 | |
b76cdba9 | 44 | #include "bonding.h" |
5a03cdb7 | 45 | |
3d632c3f | 46 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 47 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 48 | |
b76cdba9 MW |
49 | /* |
50 | * "show" function for the bond_masters attribute. | |
51 | * The class parameter is ignored. | |
52 | */ | |
28812fe1 AK |
53 | static ssize_t bonding_show_bonds(struct class *cls, |
54 | struct class_attribute *attr, | |
55 | char *buf) | |
b76cdba9 | 56 | { |
4c22400a EB |
57 | struct bond_net *bn = |
58 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
59 | int res = 0; |
60 | struct bonding *bond; | |
61 | ||
7e083840 | 62 | rtnl_lock(); |
b76cdba9 | 63 | |
ec87fd3b | 64 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
65 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
66 | /* not enough space for another interface name */ | |
67 | if ((PAGE_SIZE - res) > 10) | |
68 | res = PAGE_SIZE - 10; | |
b8843665 | 69 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
70 | break; |
71 | } | |
b8843665 | 72 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 73 | } |
1dcdcd69 WF |
74 | if (res) |
75 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
76 | |
77 | rtnl_unlock(); | |
b76cdba9 MW |
78 | return res; |
79 | } | |
80 | ||
4c22400a | 81 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
82 | { |
83 | struct bonding *bond; | |
84 | ||
ec87fd3b | 85 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
86 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
87 | return bond->dev; | |
88 | } | |
89 | return NULL; | |
90 | } | |
91 | ||
b76cdba9 MW |
92 | /* |
93 | * "store" function for the bond_masters attribute. This is what | |
94 | * creates and deletes entire bonds. | |
95 | * | |
96 | * The class parameter is ignored. | |
97 | * | |
98 | */ | |
99 | ||
3d632c3f | 100 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 101 | struct class_attribute *attr, |
3d632c3f | 102 | const char *buffer, size_t count) |
b76cdba9 | 103 | { |
4c22400a EB |
104 | struct bond_net *bn = |
105 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
106 | char command[IFNAMSIZ + 1] = {0, }; |
107 | char *ifname; | |
027ea041 | 108 | int rv, res = count; |
b76cdba9 | 109 | |
b76cdba9 MW |
110 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
111 | ifname = command + 1; | |
112 | if ((strlen(command) <= 1) || | |
113 | !dev_valid_name(ifname)) | |
114 | goto err_no_cmd; | |
115 | ||
116 | if (command[0] == '+') { | |
a4aee5c8 | 117 | pr_info("%s is being created...\n", ifname); |
4c22400a | 118 | rv = bond_create(bn->net, ifname); |
027ea041 | 119 | if (rv) { |
5f86cad1 PO |
120 | if (rv == -EEXIST) |
121 | pr_info("%s already exists.\n", ifname); | |
122 | else | |
123 | pr_info("%s creation failed.\n", ifname); | |
027ea041 | 124 | res = rv; |
b76cdba9 | 125 | } |
373500db SH |
126 | } else if (command[0] == '-') { |
127 | struct net_device *bond_dev; | |
b76cdba9 | 128 | |
027ea041 | 129 | rtnl_lock(); |
4c22400a | 130 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 131 | if (bond_dev) { |
a4aee5c8 | 132 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
133 | unregister_netdevice(bond_dev); |
134 | } else { | |
a4aee5c8 | 135 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
136 | res = -ENODEV; |
137 | } | |
138 | rtnl_unlock(); | |
139 | } else | |
140 | goto err_no_cmd; | |
027ea041 | 141 | |
373500db SH |
142 | /* Always return either count or an error. If you return 0, you'll |
143 | * get called forever, which is bad. | |
144 | */ | |
145 | return res; | |
b76cdba9 MW |
146 | |
147 | err_no_cmd: | |
a4aee5c8 | 148 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 149 | return -EPERM; |
b76cdba9 | 150 | } |
373500db | 151 | |
4c22400a EB |
152 | static const void *bonding_namespace(struct class *cls, |
153 | const struct class_attribute *attr) | |
154 | { | |
155 | const struct bond_net *bn = | |
156 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
157 | return bn->net; | |
158 | } | |
159 | ||
b76cdba9 | 160 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
161 | static const struct class_attribute class_attr_bonding_masters = { |
162 | .attr = { | |
163 | .name = "bonding_masters", | |
164 | .mode = S_IWUSR | S_IRUGO, | |
165 | }, | |
166 | .show = bonding_show_bonds, | |
167 | .store = bonding_store_bonds, | |
168 | .namespace = bonding_namespace, | |
169 | }; | |
b76cdba9 | 170 | |
3d632c3f SH |
171 | int bond_create_slave_symlinks(struct net_device *master, |
172 | struct net_device *slave) | |
b76cdba9 MW |
173 | { |
174 | char linkname[IFNAMSIZ+7]; | |
175 | int ret = 0; | |
176 | ||
177 | /* first, create a link from the slave back to the master */ | |
43cb76d9 | 178 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
b76cdba9 MW |
179 | "master"); |
180 | if (ret) | |
181 | return ret; | |
182 | /* next, create a link from the master to the slave */ | |
3d632c3f | 183 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 184 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
b76cdba9 | 185 | linkname); |
9fe16b78 VF |
186 | |
187 | /* free the master link created earlier in case of error */ | |
188 | if (ret) | |
189 | sysfs_remove_link(&(slave->dev.kobj), "master"); | |
190 | ||
b76cdba9 MW |
191 | return ret; |
192 | ||
193 | } | |
194 | ||
3d632c3f SH |
195 | void bond_destroy_slave_symlinks(struct net_device *master, |
196 | struct net_device *slave) | |
b76cdba9 MW |
197 | { |
198 | char linkname[IFNAMSIZ+7]; | |
199 | ||
43cb76d9 | 200 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
3d632c3f | 201 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 202 | sysfs_remove_link(&(master->dev.kobj), linkname); |
b76cdba9 MW |
203 | } |
204 | ||
205 | ||
206 | /* | |
207 | * Show the slaves in the current bond. | |
208 | */ | |
43cb76d9 GKH |
209 | static ssize_t bonding_show_slaves(struct device *d, |
210 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 211 | { |
43cb76d9 | 212 | struct bonding *bond = to_bond(d); |
9caff1e7 | 213 | struct list_head *iter; |
dec1e90e | 214 | struct slave *slave; |
215 | int res = 0; | |
b76cdba9 | 216 | |
6603a6f2 | 217 | read_lock(&bond->lock); |
9caff1e7 | 218 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
219 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
220 | /* not enough space for another interface name */ | |
221 | if ((PAGE_SIZE - res) > 10) | |
222 | res = PAGE_SIZE - 10; | |
7bd46508 | 223 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
224 | break; |
225 | } | |
226 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
227 | } | |
6603a6f2 | 228 | read_unlock(&bond->lock); |
1dcdcd69 WF |
229 | if (res) |
230 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 231 | |
b76cdba9 MW |
232 | return res; |
233 | } | |
234 | ||
235 | /* | |
d6641ccf | 236 | * Set the slaves in the current bond. |
f9f3545e JP |
237 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
238 | * All hard work should be done there. | |
b76cdba9 | 239 | */ |
43cb76d9 GKH |
240 | static ssize_t bonding_store_slaves(struct device *d, |
241 | struct device_attribute *attr, | |
242 | const char *buffer, size_t count) | |
b76cdba9 MW |
243 | { |
244 | char command[IFNAMSIZ + 1] = { 0, }; | |
245 | char *ifname; | |
f9f3545e JP |
246 | int res, ret = count; |
247 | struct net_device *dev; | |
43cb76d9 | 248 | struct bonding *bond = to_bond(d); |
b76cdba9 | 249 | |
496a60cd EB |
250 | if (!rtnl_trylock()) |
251 | return restart_syscall(); | |
027ea041 | 252 | |
b76cdba9 MW |
253 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
254 | ifname = command + 1; | |
255 | if ((strlen(command) <= 1) || | |
256 | !dev_valid_name(ifname)) | |
257 | goto err_no_cmd; | |
258 | ||
f9f3545e JP |
259 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
260 | if (!dev) { | |
261 | pr_info("%s: Interface %s does not exist!\n", | |
262 | bond->dev->name, ifname); | |
263 | ret = -ENODEV; | |
264 | goto out; | |
265 | } | |
b76cdba9 | 266 | |
f9f3545e JP |
267 | switch (command[0]) { |
268 | case '+': | |
269 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 270 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 271 | break; |
3d632c3f | 272 | |
f9f3545e JP |
273 | case '-': |
274 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
275 | res = bond_release(bond->dev, dev); | |
276 | break; | |
b76cdba9 | 277 | |
f9f3545e JP |
278 | default: |
279 | goto err_no_cmd; | |
b76cdba9 MW |
280 | } |
281 | ||
f9f3545e JP |
282 | if (res) |
283 | ret = res; | |
284 | goto out; | |
285 | ||
b76cdba9 | 286 | err_no_cmd: |
a4aee5c8 JP |
287 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
288 | bond->dev->name); | |
b76cdba9 MW |
289 | ret = -EPERM; |
290 | ||
291 | out: | |
027ea041 | 292 | rtnl_unlock(); |
b76cdba9 MW |
293 | return ret; |
294 | } | |
295 | ||
3d632c3f SH |
296 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
297 | bonding_store_slaves); | |
b76cdba9 MW |
298 | |
299 | /* | |
300 | * Show and set the bonding mode. The bond interface must be down to | |
301 | * change the mode. | |
302 | */ | |
43cb76d9 GKH |
303 | static ssize_t bonding_show_mode(struct device *d, |
304 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 305 | { |
43cb76d9 | 306 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
307 | |
308 | return sprintf(buf, "%s %d\n", | |
309 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 310 | bond->params.mode); |
b76cdba9 MW |
311 | } |
312 | ||
43cb76d9 GKH |
313 | static ssize_t bonding_store_mode(struct device *d, |
314 | struct device_attribute *attr, | |
315 | const char *buf, size_t count) | |
b76cdba9 MW |
316 | { |
317 | int new_value, ret = count; | |
43cb76d9 | 318 | struct bonding *bond = to_bond(d); |
b76cdba9 | 319 | |
ea6836dd | 320 | if (!rtnl_trylock()) |
321 | return restart_syscall(); | |
322 | ||
b76cdba9 | 323 | if (bond->dev->flags & IFF_UP) { |
a4aee5c8 JP |
324 | pr_err("unable to update mode of %s because interface is up.\n", |
325 | bond->dev->name); | |
b76cdba9 MW |
326 | ret = -EPERM; |
327 | goto out; | |
328 | } | |
329 | ||
dec1e90e | 330 | if (!list_empty(&bond->slave_list)) { |
4a8bb7e2 VF |
331 | pr_err("unable to update mode of %s because it has slaves.\n", |
332 | bond->dev->name); | |
333 | ret = -EPERM; | |
334 | goto out; | |
335 | } | |
336 | ||
ece95f7f | 337 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 338 | if (new_value < 0) { |
a4aee5c8 JP |
339 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
340 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
341 | ret = -EINVAL; |
342 | goto out; | |
c5cb002f AG |
343 | } |
344 | if ((new_value == BOND_MODE_ALB || | |
345 | new_value == BOND_MODE_TLB) && | |
346 | bond->params.arp_interval) { | |
347 | pr_err("%s: %s mode is incompatible with arp monitoring.\n", | |
348 | bond->dev->name, bond_mode_tbl[new_value].modename); | |
349 | ret = -EINVAL; | |
350 | goto out; | |
351 | } | |
8f903c70 | 352 | |
5bb9e0b5 | 353 | /* don't cache arp_validate between modes */ |
354 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
c5cb002f AG |
355 | bond->params.mode = new_value; |
356 | bond_set_mode_ops(bond, bond->params.mode); | |
357 | pr_info("%s: setting mode to %s (%d).\n", | |
358 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
359 | new_value); | |
b76cdba9 | 360 | out: |
ea6836dd | 361 | rtnl_unlock(); |
b76cdba9 MW |
362 | return ret; |
363 | } | |
3d632c3f SH |
364 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
365 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
366 | |
367 | /* | |
3d632c3f | 368 | * Show and set the bonding transmit hash method. |
b76cdba9 | 369 | */ |
43cb76d9 GKH |
370 | static ssize_t bonding_show_xmit_hash(struct device *d, |
371 | struct device_attribute *attr, | |
372 | char *buf) | |
b76cdba9 | 373 | { |
43cb76d9 | 374 | struct bonding *bond = to_bond(d); |
b76cdba9 | 375 | |
8e4b9329 WF |
376 | return sprintf(buf, "%s %d\n", |
377 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
378 | bond->params.xmit_policy); | |
b76cdba9 MW |
379 | } |
380 | ||
43cb76d9 GKH |
381 | static ssize_t bonding_store_xmit_hash(struct device *d, |
382 | struct device_attribute *attr, | |
383 | const char *buf, size_t count) | |
b76cdba9 MW |
384 | { |
385 | int new_value, ret = count; | |
43cb76d9 | 386 | struct bonding *bond = to_bond(d); |
b76cdba9 | 387 | |
ece95f7f | 388 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 389 | if (new_value < 0) { |
a4aee5c8 | 390 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
391 | bond->dev->name, |
392 | (int)strlen(buf) - 1, buf); | |
393 | ret = -EINVAL; | |
b76cdba9 MW |
394 | } else { |
395 | bond->params.xmit_policy = new_value; | |
396 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 | 397 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
398 | bond->dev->name, |
399 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 | 400 | } |
53edee2c | 401 | |
b76cdba9 MW |
402 | return ret; |
403 | } | |
3d632c3f SH |
404 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
405 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 406 | |
f5b2b966 JV |
407 | /* |
408 | * Show and set arp_validate. | |
409 | */ | |
43cb76d9 GKH |
410 | static ssize_t bonding_show_arp_validate(struct device *d, |
411 | struct device_attribute *attr, | |
412 | char *buf) | |
f5b2b966 | 413 | { |
43cb76d9 | 414 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
415 | |
416 | return sprintf(buf, "%s %d\n", | |
417 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 418 | bond->params.arp_validate); |
f5b2b966 JV |
419 | } |
420 | ||
43cb76d9 GKH |
421 | static ssize_t bonding_store_arp_validate(struct device *d, |
422 | struct device_attribute *attr, | |
423 | const char *buf, size_t count) | |
f5b2b966 | 424 | { |
43cb76d9 | 425 | struct bonding *bond = to_bond(d); |
5bb9e0b5 | 426 | int new_value, ret = count; |
f5b2b966 | 427 | |
5c5038dc | 428 | if (!rtnl_trylock()) |
429 | return restart_syscall(); | |
ece95f7f | 430 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 431 | if (new_value < 0) { |
a4aee5c8 | 432 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 | 433 | bond->dev->name, buf); |
5c5038dc | 434 | ret = -EINVAL; |
435 | goto out; | |
f5b2b966 | 436 | } |
5bb9e0b5 | 437 | if (bond->params.mode != BOND_MODE_ACTIVEBACKUP) { |
a4aee5c8 | 438 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 | 439 | bond->dev->name); |
5c5038dc | 440 | ret = -EINVAL; |
441 | goto out; | |
f5b2b966 | 442 | } |
a4aee5c8 JP |
443 | pr_info("%s: setting arp_validate to %s (%d).\n", |
444 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
445 | new_value); | |
f5b2b966 | 446 | |
5bb9e0b5 | 447 | if (bond->dev->flags & IFF_UP) { |
448 | if (!new_value) | |
449 | bond->recv_probe = NULL; | |
450 | else if (bond->params.arp_interval) | |
451 | bond->recv_probe = bond_arp_rcv; | |
452 | } | |
f5b2b966 | 453 | bond->params.arp_validate = new_value; |
5c5038dc | 454 | out: |
455 | rtnl_unlock(); | |
f5b2b966 | 456 | |
5c5038dc | 457 | return ret; |
f5b2b966 JV |
458 | } |
459 | ||
3d632c3f SH |
460 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
461 | bonding_store_arp_validate); | |
8599b52e VF |
462 | /* |
463 | * Show and set arp_all_targets. | |
464 | */ | |
465 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
466 | struct device_attribute *attr, | |
467 | char *buf) | |
468 | { | |
469 | struct bonding *bond = to_bond(d); | |
470 | int value = bond->params.arp_all_targets; | |
471 | ||
472 | return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename, | |
473 | value); | |
474 | } | |
475 | ||
476 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
477 | struct device_attribute *attr, | |
478 | const char *buf, size_t count) | |
479 | { | |
480 | struct bonding *bond = to_bond(d); | |
481 | int new_value; | |
482 | ||
483 | new_value = bond_parse_parm(buf, arp_all_targets_tbl); | |
484 | if (new_value < 0) { | |
485 | pr_err("%s: Ignoring invalid arp_all_targets value %s\n", | |
486 | bond->dev->name, buf); | |
487 | return -EINVAL; | |
488 | } | |
489 | pr_info("%s: setting arp_all_targets to %s (%d).\n", | |
490 | bond->dev->name, arp_all_targets_tbl[new_value].modename, | |
491 | new_value); | |
492 | ||
493 | bond->params.arp_all_targets = new_value; | |
494 | ||
495 | return count; | |
496 | } | |
497 | ||
498 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
499 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 500 | |
dd957c57 JV |
501 | /* |
502 | * Show and store fail_over_mac. User only allowed to change the | |
503 | * value when there are no slaves. | |
504 | */ | |
3d632c3f SH |
505 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
506 | struct device_attribute *attr, | |
507 | char *buf) | |
dd957c57 JV |
508 | { |
509 | struct bonding *bond = to_bond(d); | |
510 | ||
3915c1e8 JV |
511 | return sprintf(buf, "%s %d\n", |
512 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
513 | bond->params.fail_over_mac); | |
dd957c57 JV |
514 | } |
515 | ||
3d632c3f SH |
516 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
517 | struct device_attribute *attr, | |
518 | const char *buf, size_t count) | |
dd957c57 | 519 | { |
9402b746 | 520 | int new_value, ret = count; |
dd957c57 JV |
521 | struct bonding *bond = to_bond(d); |
522 | ||
9402b746 | 523 | if (!rtnl_trylock()) |
524 | return restart_syscall(); | |
525 | ||
dec1e90e | 526 | if (!list_empty(&bond->slave_list)) { |
a4aee5c8 | 527 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 528 | bond->dev->name); |
9402b746 | 529 | ret = -EPERM; |
530 | goto out; | |
dd957c57 JV |
531 | } |
532 | ||
3915c1e8 JV |
533 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
534 | if (new_value < 0) { | |
a4aee5c8 | 535 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 | 536 | bond->dev->name, buf); |
9402b746 | 537 | ret = -EINVAL; |
538 | goto out; | |
dd957c57 JV |
539 | } |
540 | ||
3915c1e8 | 541 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
542 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
543 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
544 | new_value); | |
3915c1e8 | 545 | |
9402b746 | 546 | out: |
547 | rtnl_unlock(); | |
548 | return ret; | |
dd957c57 JV |
549 | } |
550 | ||
3d632c3f SH |
551 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
552 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 553 | |
b76cdba9 MW |
554 | /* |
555 | * Show and set the arp timer interval. There are two tricky bits | |
556 | * here. First, if ARP monitoring is activated, then we must disable | |
557 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
558 | * start it. | |
559 | */ | |
43cb76d9 GKH |
560 | static ssize_t bonding_show_arp_interval(struct device *d, |
561 | struct device_attribute *attr, | |
562 | char *buf) | |
b76cdba9 | 563 | { |
43cb76d9 | 564 | struct bonding *bond = to_bond(d); |
b76cdba9 | 565 | |
7bd46508 | 566 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
567 | } |
568 | ||
43cb76d9 GKH |
569 | static ssize_t bonding_store_arp_interval(struct device *d, |
570 | struct device_attribute *attr, | |
571 | const char *buf, size_t count) | |
b76cdba9 | 572 | { |
43cb76d9 | 573 | struct bonding *bond = to_bond(d); |
5bb9e0b5 | 574 | int new_value, ret = count; |
b76cdba9 | 575 | |
fbb0c41b | 576 | if (!rtnl_trylock()) |
577 | return restart_syscall(); | |
b76cdba9 | 578 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 579 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
580 | bond->dev->name); |
581 | ret = -EINVAL; | |
582 | goto out; | |
583 | } | |
584 | if (new_value < 0) { | |
1bc7db16 | 585 | pr_err("%s: Invalid arp_interval value %d not in range 0-%d; rejected.\n", |
b76cdba9 MW |
586 | bond->dev->name, new_value, INT_MAX); |
587 | ret = -EINVAL; | |
588 | goto out; | |
589 | } | |
c5cb002f AG |
590 | if (bond->params.mode == BOND_MODE_ALB || |
591 | bond->params.mode == BOND_MODE_TLB) { | |
592 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", | |
593 | bond->dev->name, bond->dev->name); | |
594 | ret = -EINVAL; | |
595 | goto out; | |
596 | } | |
a4aee5c8 JP |
597 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
598 | bond->dev->name, new_value); | |
b76cdba9 | 599 | bond->params.arp_interval = new_value; |
1bc7db16 | 600 | if (new_value) { |
601 | if (bond->params.miimon) { | |
602 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", | |
603 | bond->dev->name, bond->dev->name); | |
604 | bond->params.miimon = 0; | |
605 | } | |
606 | if (!bond->params.arp_targets[0]) | |
607 | pr_info("%s: ARP monitoring has been set up, but no ARP targets have been specified.\n", | |
608 | bond->dev->name); | |
b76cdba9 MW |
609 | } |
610 | if (bond->dev->flags & IFF_UP) { | |
611 | /* If the interface is up, we may need to fire off | |
612 | * the ARP timer. If the interface is down, the | |
613 | * timer will get fired off when the open function | |
614 | * is called. | |
615 | */ | |
1bc7db16 | 616 | if (!new_value) { |
5bb9e0b5 | 617 | if (bond->params.arp_validate) |
618 | bond->recv_probe = NULL; | |
1bc7db16 | 619 | cancel_delayed_work_sync(&bond->arp_work); |
620 | } else { | |
5bb9e0b5 | 621 | /* arp_validate can be set only in active-backup mode */ |
622 | if (bond->params.arp_validate) | |
623 | bond->recv_probe = bond_arp_rcv; | |
1bc7db16 | 624 | cancel_delayed_work_sync(&bond->mii_work); |
625 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
626 | } | |
b76cdba9 | 627 | } |
b76cdba9 | 628 | out: |
fbb0c41b | 629 | rtnl_unlock(); |
b76cdba9 MW |
630 | return ret; |
631 | } | |
3d632c3f SH |
632 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
633 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
634 | |
635 | /* | |
636 | * Show and set the arp targets. | |
637 | */ | |
43cb76d9 GKH |
638 | static ssize_t bonding_show_arp_targets(struct device *d, |
639 | struct device_attribute *attr, | |
640 | char *buf) | |
b76cdba9 MW |
641 | { |
642 | int i, res = 0; | |
43cb76d9 | 643 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
644 | |
645 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
646 | if (bond->params.arp_targets[i]) | |
63779436 HH |
647 | res += sprintf(buf + res, "%pI4 ", |
648 | &bond->params.arp_targets[i]); | |
b76cdba9 | 649 | } |
1dcdcd69 WF |
650 | if (res) |
651 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
652 | return res; |
653 | } | |
654 | ||
43cb76d9 GKH |
655 | static ssize_t bonding_store_arp_targets(struct device *d, |
656 | struct device_attribute *attr, | |
657 | const char *buf, size_t count) | |
b76cdba9 | 658 | { |
43cb76d9 | 659 | struct bonding *bond = to_bond(d); |
9caff1e7 | 660 | struct list_head *iter; |
8599b52e VF |
661 | struct slave *slave; |
662 | __be32 newtarget, *targets; | |
663 | unsigned long *targets_rx; | |
664 | int ind, i, j, ret = -EINVAL; | |
b76cdba9 MW |
665 | |
666 | targets = bond->params.arp_targets; | |
667 | newtarget = in_aton(buf + 1); | |
668 | /* look for adds */ | |
669 | if (buf[0] == '+') { | |
d3bb52b0 | 670 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 671 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 672 | bond->dev->name, &newtarget); |
b76cdba9 MW |
673 | goto out; |
674 | } | |
87a7b84b VF |
675 | |
676 | if (bond_get_targets_ip(targets, newtarget) != -1) { /* dup */ | |
677 | pr_err("%s: ARP target %pI4 is already present\n", | |
678 | bond->dev->name, &newtarget); | |
679 | goto out; | |
b76cdba9 | 680 | } |
87a7b84b | 681 | |
8599b52e VF |
682 | ind = bond_get_targets_ip(targets, 0); /* first free slot */ |
683 | if (ind == -1) { | |
a4aee5c8 | 684 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 | 685 | bond->dev->name); |
b76cdba9 MW |
686 | goto out; |
687 | } | |
688 | ||
87a7b84b VF |
689 | pr_info("%s: adding ARP target %pI4.\n", bond->dev->name, |
690 | &newtarget); | |
8599b52e VF |
691 | /* not to race with bond_arp_rcv */ |
692 | write_lock_bh(&bond->lock); | |
9caff1e7 | 693 | bond_for_each_slave(bond, slave, iter) |
8599b52e VF |
694 | slave->target_last_arp_rx[ind] = jiffies; |
695 | targets[ind] = newtarget; | |
696 | write_unlock_bh(&bond->lock); | |
3d632c3f | 697 | } else if (buf[0] == '-') { |
d3bb52b0 | 698 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 699 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 700 | bond->dev->name, &newtarget); |
b76cdba9 MW |
701 | goto out; |
702 | } | |
703 | ||
8599b52e VF |
704 | ind = bond_get_targets_ip(targets, newtarget); |
705 | if (ind == -1) { | |
706 | pr_err("%s: unable to remove nonexistent ARP target %pI4.\n", | |
a4aee5c8 | 707 | bond->dev->name, &newtarget); |
b76cdba9 MW |
708 | goto out; |
709 | } | |
87a7b84b | 710 | |
8599b52e VF |
711 | if (ind == 0 && !targets[1] && bond->params.arp_interval) |
712 | pr_warn("%s: removing last arp target with arp_interval on\n", | |
713 | bond->dev->name); | |
714 | ||
87a7b84b VF |
715 | pr_info("%s: removing ARP target %pI4.\n", bond->dev->name, |
716 | &newtarget); | |
8599b52e VF |
717 | |
718 | write_lock_bh(&bond->lock); | |
9caff1e7 | 719 | bond_for_each_slave(bond, slave, iter) { |
8599b52e VF |
720 | targets_rx = slave->target_last_arp_rx; |
721 | j = ind; | |
722 | for (; (j < BOND_MAX_ARP_TARGETS-1) && targets[j+1]; j++) | |
723 | targets_rx[j] = targets_rx[j+1]; | |
724 | targets_rx[j] = 0; | |
725 | } | |
726 | for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++) | |
87a7b84b VF |
727 | targets[i] = targets[i+1]; |
728 | targets[i] = 0; | |
8599b52e | 729 | write_unlock_bh(&bond->lock); |
3d632c3f | 730 | } else { |
a4aee5c8 JP |
731 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
732 | bond->dev->name); | |
b76cdba9 MW |
733 | ret = -EPERM; |
734 | goto out; | |
735 | } | |
736 | ||
87a7b84b | 737 | ret = count; |
b76cdba9 MW |
738 | out: |
739 | return ret; | |
740 | } | |
43cb76d9 | 741 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
742 | |
743 | /* | |
744 | * Show and set the up and down delays. These must be multiples of the | |
745 | * MII monitoring value, and are stored internally as the multiplier. | |
746 | * Thus, we must translate to MS for the real world. | |
747 | */ | |
43cb76d9 GKH |
748 | static ssize_t bonding_show_downdelay(struct device *d, |
749 | struct device_attribute *attr, | |
750 | char *buf) | |
b76cdba9 | 751 | { |
43cb76d9 | 752 | struct bonding *bond = to_bond(d); |
b76cdba9 | 753 | |
7bd46508 | 754 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
755 | } |
756 | ||
43cb76d9 GKH |
757 | static ssize_t bonding_store_downdelay(struct device *d, |
758 | struct device_attribute *attr, | |
759 | const char *buf, size_t count) | |
b76cdba9 MW |
760 | { |
761 | int new_value, ret = count; | |
43cb76d9 | 762 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
763 | |
764 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 765 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
766 | bond->dev->name); |
767 | ret = -EPERM; | |
768 | goto out; | |
769 | } | |
770 | ||
771 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 772 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
773 | ret = -EINVAL; |
774 | goto out; | |
775 | } | |
776 | if (new_value < 0) { | |
a4aee5c8 | 777 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 778 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
779 | ret = -EINVAL; |
780 | goto out; | |
781 | } else { | |
782 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 783 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
784 | bond->dev->name, new_value, |
785 | bond->params.miimon, | |
786 | (new_value / bond->params.miimon) * | |
787 | bond->params.miimon); | |
b76cdba9 MW |
788 | } |
789 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
790 | pr_info("%s: Setting down delay to %d.\n", |
791 | bond->dev->name, | |
792 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
793 | |
794 | } | |
795 | ||
796 | out: | |
797 | return ret; | |
798 | } | |
3d632c3f SH |
799 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
800 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 801 | |
43cb76d9 GKH |
802 | static ssize_t bonding_show_updelay(struct device *d, |
803 | struct device_attribute *attr, | |
804 | char *buf) | |
b76cdba9 | 805 | { |
43cb76d9 | 806 | struct bonding *bond = to_bond(d); |
b76cdba9 | 807 | |
7bd46508 | 808 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
809 | |
810 | } | |
811 | ||
43cb76d9 GKH |
812 | static ssize_t bonding_store_updelay(struct device *d, |
813 | struct device_attribute *attr, | |
814 | const char *buf, size_t count) | |
b76cdba9 MW |
815 | { |
816 | int new_value, ret = count; | |
43cb76d9 | 817 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
818 | |
819 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 820 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
821 | bond->dev->name); |
822 | ret = -EPERM; | |
823 | goto out; | |
824 | } | |
825 | ||
826 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 827 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
828 | bond->dev->name); |
829 | ret = -EINVAL; | |
830 | goto out; | |
831 | } | |
832 | if (new_value < 0) { | |
1bc7db16 | 833 | pr_err("%s: Invalid up delay value %d not in range %d-%d; rejected.\n", |
834 | bond->dev->name, new_value, 0, INT_MAX); | |
b76cdba9 MW |
835 | ret = -EINVAL; |
836 | goto out; | |
837 | } else { | |
838 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 839 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
840 | bond->dev->name, new_value, |
841 | bond->params.miimon, | |
842 | (new_value / bond->params.miimon) * | |
843 | bond->params.miimon); | |
b76cdba9 MW |
844 | } |
845 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
846 | pr_info("%s: Setting up delay to %d.\n", |
847 | bond->dev->name, | |
848 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
849 | } |
850 | ||
851 | out: | |
852 | return ret; | |
853 | } | |
3d632c3f SH |
854 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
855 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
856 | |
857 | /* | |
858 | * Show and set the LACP interval. Interface must be down, and the mode | |
859 | * must be set to 802.3ad mode. | |
860 | */ | |
43cb76d9 GKH |
861 | static ssize_t bonding_show_lacp(struct device *d, |
862 | struct device_attribute *attr, | |
863 | char *buf) | |
b76cdba9 | 864 | { |
43cb76d9 | 865 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
866 | |
867 | return sprintf(buf, "%s %d\n", | |
868 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 869 | bond->params.lacp_fast); |
b76cdba9 MW |
870 | } |
871 | ||
43cb76d9 GKH |
872 | static ssize_t bonding_store_lacp(struct device *d, |
873 | struct device_attribute *attr, | |
874 | const char *buf, size_t count) | |
b76cdba9 | 875 | { |
43cb76d9 | 876 | struct bonding *bond = to_bond(d); |
c509316b | 877 | int new_value, ret = count; |
878 | ||
879 | if (!rtnl_trylock()) | |
880 | return restart_syscall(); | |
b76cdba9 MW |
881 | |
882 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 883 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
884 | bond->dev->name); |
885 | ret = -EPERM; | |
886 | goto out; | |
887 | } | |
888 | ||
889 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 890 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
891 | bond->dev->name); |
892 | ret = -EPERM; | |
893 | goto out; | |
894 | } | |
895 | ||
ece95f7f | 896 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
897 | |
898 | if ((new_value == 1) || (new_value == 0)) { | |
899 | bond->params.lacp_fast = new_value; | |
ba824a8b | 900 | bond_3ad_update_lacp_rate(bond); |
a4aee5c8 | 901 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
902 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
903 | new_value); | |
b76cdba9 | 904 | } else { |
a4aee5c8 | 905 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 906 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
907 | ret = -EINVAL; |
908 | } | |
909 | out: | |
c509316b | 910 | rtnl_unlock(); |
911 | ||
b76cdba9 MW |
912 | return ret; |
913 | } | |
3d632c3f SH |
914 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
915 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 916 | |
655f8919 | 917 | static ssize_t bonding_show_min_links(struct device *d, |
918 | struct device_attribute *attr, | |
919 | char *buf) | |
920 | { | |
921 | struct bonding *bond = to_bond(d); | |
922 | ||
923 | return sprintf(buf, "%d\n", bond->params.min_links); | |
924 | } | |
925 | ||
926 | static ssize_t bonding_store_min_links(struct device *d, | |
927 | struct device_attribute *attr, | |
928 | const char *buf, size_t count) | |
929 | { | |
930 | struct bonding *bond = to_bond(d); | |
931 | int ret; | |
932 | unsigned int new_value; | |
933 | ||
934 | ret = kstrtouint(buf, 0, &new_value); | |
935 | if (ret < 0) { | |
936 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
937 | bond->dev->name, buf); | |
938 | return ret; | |
939 | } | |
940 | ||
941 | pr_info("%s: Setting min links value to %u\n", | |
942 | bond->dev->name, new_value); | |
943 | bond->params.min_links = new_value; | |
944 | return count; | |
945 | } | |
946 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
947 | bonding_show_min_links, bonding_store_min_links); | |
948 | ||
fd989c83 JV |
949 | static ssize_t bonding_show_ad_select(struct device *d, |
950 | struct device_attribute *attr, | |
951 | char *buf) | |
952 | { | |
953 | struct bonding *bond = to_bond(d); | |
954 | ||
955 | return sprintf(buf, "%s %d\n", | |
956 | ad_select_tbl[bond->params.ad_select].modename, | |
957 | bond->params.ad_select); | |
958 | } | |
959 | ||
960 | ||
961 | static ssize_t bonding_store_ad_select(struct device *d, | |
962 | struct device_attribute *attr, | |
963 | const char *buf, size_t count) | |
964 | { | |
965 | int new_value, ret = count; | |
966 | struct bonding *bond = to_bond(d); | |
967 | ||
968 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
969 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
970 | bond->dev->name); | |
fd989c83 JV |
971 | ret = -EPERM; |
972 | goto out; | |
973 | } | |
974 | ||
975 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
976 | ||
977 | if (new_value != -1) { | |
978 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
979 | pr_info("%s: Setting ad_select to %s (%d).\n", |
980 | bond->dev->name, ad_select_tbl[new_value].modename, | |
981 | new_value); | |
fd989c83 | 982 | } else { |
a4aee5c8 | 983 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
984 | bond->dev->name, (int)strlen(buf) - 1, buf); |
985 | ret = -EINVAL; | |
986 | } | |
987 | out: | |
988 | return ret; | |
989 | } | |
3d632c3f SH |
990 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
991 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 992 | |
ad246c99 BH |
993 | /* |
994 | * Show and set the number of peer notifications to send after a failover event. | |
995 | */ | |
996 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
997 | struct device_attribute *attr, | |
998 | char *buf) | |
999 | { | |
1000 | struct bonding *bond = to_bond(d); | |
1001 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
1002 | } | |
1003 | ||
1004 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
1005 | struct device_attribute *attr, | |
1006 | const char *buf, size_t count) | |
1007 | { | |
1008 | struct bonding *bond = to_bond(d); | |
1009 | int err = kstrtou8(buf, 10, &bond->params.num_peer_notif); | |
1010 | return err ? err : count; | |
1011 | } | |
1012 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
1013 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
1014 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
1015 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
1016 | ||
b76cdba9 MW |
1017 | /* |
1018 | * Show and set the MII monitor interval. There are two tricky bits | |
1019 | * here. First, if MII monitoring is activated, then we must disable | |
1020 | * ARP monitoring. Second, if the timer isn't running, we must | |
1021 | * start it. | |
1022 | */ | |
43cb76d9 GKH |
1023 | static ssize_t bonding_show_miimon(struct device *d, |
1024 | struct device_attribute *attr, | |
1025 | char *buf) | |
b76cdba9 | 1026 | { |
43cb76d9 | 1027 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1028 | |
7bd46508 | 1029 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
1030 | } |
1031 | ||
43cb76d9 GKH |
1032 | static ssize_t bonding_store_miimon(struct device *d, |
1033 | struct device_attribute *attr, | |
1034 | const char *buf, size_t count) | |
b76cdba9 MW |
1035 | { |
1036 | int new_value, ret = count; | |
43cb76d9 | 1037 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1038 | |
fbb0c41b | 1039 | if (!rtnl_trylock()) |
1040 | return restart_syscall(); | |
b76cdba9 | 1041 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 1042 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
1043 | bond->dev->name); |
1044 | ret = -EINVAL; | |
1045 | goto out; | |
1046 | } | |
1047 | if (new_value < 0) { | |
a4aee5c8 | 1048 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1bc7db16 | 1049 | bond->dev->name, new_value, 0, INT_MAX); |
b76cdba9 MW |
1050 | ret = -EINVAL; |
1051 | goto out; | |
1bc7db16 | 1052 | } |
1053 | pr_info("%s: Setting MII monitoring interval to %d.\n", | |
1054 | bond->dev->name, new_value); | |
1055 | bond->params.miimon = new_value; | |
1056 | if (bond->params.updelay) | |
1057 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", | |
1058 | bond->dev->name, | |
1059 | bond->params.updelay * bond->params.miimon); | |
1060 | if (bond->params.downdelay) | |
1061 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", | |
1062 | bond->dev->name, | |
1063 | bond->params.downdelay * bond->params.miimon); | |
1064 | if (new_value && bond->params.arp_interval) { | |
1065 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", | |
1066 | bond->dev->name); | |
1067 | bond->params.arp_interval = 0; | |
1068 | if (bond->params.arp_validate) | |
1069 | bond->params.arp_validate = BOND_ARP_VALIDATE_NONE; | |
1070 | } | |
1071 | if (bond->dev->flags & IFF_UP) { | |
1072 | /* If the interface is up, we may need to fire off | |
1073 | * the MII timer. If the interface is down, the | |
1074 | * timer will get fired off when the open function | |
1075 | * is called. | |
1076 | */ | |
1077 | if (!new_value) { | |
1078 | cancel_delayed_work_sync(&bond->mii_work); | |
1079 | } else { | |
fbb0c41b | 1080 | cancel_delayed_work_sync(&bond->arp_work); |
1081 | queue_delayed_work(bond->wq, &bond->mii_work, 0); | |
b76cdba9 MW |
1082 | } |
1083 | } | |
1084 | out: | |
fbb0c41b | 1085 | rtnl_unlock(); |
b76cdba9 MW |
1086 | return ret; |
1087 | } | |
3d632c3f SH |
1088 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1089 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1090 | |
1091 | /* | |
1092 | * Show and set the primary slave. The store function is much | |
1093 | * simpler than bonding_store_slaves function because it only needs to | |
1094 | * handle one interface name. | |
1095 | * The bond must be a mode that supports a primary for this be | |
1096 | * set. | |
1097 | */ | |
43cb76d9 GKH |
1098 | static ssize_t bonding_show_primary(struct device *d, |
1099 | struct device_attribute *attr, | |
1100 | char *buf) | |
b76cdba9 MW |
1101 | { |
1102 | int count = 0; | |
43cb76d9 | 1103 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1104 | |
1105 | if (bond->primary_slave) | |
7bd46508 | 1106 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1107 | |
1108 | return count; | |
1109 | } | |
1110 | ||
43cb76d9 GKH |
1111 | static ssize_t bonding_store_primary(struct device *d, |
1112 | struct device_attribute *attr, | |
1113 | const char *buf, size_t count) | |
b76cdba9 | 1114 | { |
43cb76d9 | 1115 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1116 | struct list_head *iter; |
f4bb2e9c | 1117 | char ifname[IFNAMSIZ]; |
dec1e90e | 1118 | struct slave *slave; |
b76cdba9 | 1119 | |
496a60cd EB |
1120 | if (!rtnl_trylock()) |
1121 | return restart_syscall(); | |
e843fa50 | 1122 | block_netpoll_tx(); |
e934dd78 JV |
1123 | read_lock(&bond->lock); |
1124 | write_lock_bh(&bond->curr_slave_lock); | |
1125 | ||
b76cdba9 | 1126 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1127 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1128 | bond->dev->name, bond->dev->name, bond->params.mode); | |
f4bb2e9c AG |
1129 | goto out; |
1130 | } | |
b76cdba9 | 1131 | |
eb6e98a1 | 1132 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
b76cdba9 | 1133 | |
f4bb2e9c AG |
1134 | /* check to see if we are clearing primary */ |
1135 | if (!strlen(ifname) || buf[0] == '\n') { | |
1136 | pr_info("%s: Setting primary slave to None.\n", | |
1137 | bond->dev->name); | |
1138 | bond->primary_slave = NULL; | |
eb492f74 | 1139 | memset(bond->params.primary, 0, sizeof(bond->params.primary)); |
f4bb2e9c AG |
1140 | bond_select_active_slave(bond); |
1141 | goto out; | |
1142 | } | |
1143 | ||
9caff1e7 | 1144 | bond_for_each_slave(bond, slave, iter) { |
f4bb2e9c AG |
1145 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
1146 | pr_info("%s: Setting %s as primary slave.\n", | |
1147 | bond->dev->name, slave->dev->name); | |
1148 | bond->primary_slave = slave; | |
1149 | strcpy(bond->params.primary, slave->dev->name); | |
1150 | bond_select_active_slave(bond); | |
1151 | goto out; | |
b76cdba9 MW |
1152 | } |
1153 | } | |
f4bb2e9c | 1154 | |
8a93664d WP |
1155 | strncpy(bond->params.primary, ifname, IFNAMSIZ); |
1156 | bond->params.primary[IFNAMSIZ - 1] = 0; | |
1157 | ||
1158 | pr_info("%s: Recording %s as primary, " | |
1159 | "but it has not been enslaved to %s yet.\n", | |
1160 | bond->dev->name, ifname, bond->dev->name); | |
b76cdba9 | 1161 | out: |
e934dd78 JV |
1162 | write_unlock_bh(&bond->curr_slave_lock); |
1163 | read_unlock(&bond->lock); | |
e843fa50 | 1164 | unblock_netpoll_tx(); |
6603a6f2 JV |
1165 | rtnl_unlock(); |
1166 | ||
b76cdba9 MW |
1167 | return count; |
1168 | } | |
3d632c3f SH |
1169 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1170 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1171 | |
a549952a JP |
1172 | /* |
1173 | * Show and set the primary_reselect flag. | |
1174 | */ | |
1175 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1176 | struct device_attribute *attr, | |
1177 | char *buf) | |
1178 | { | |
1179 | struct bonding *bond = to_bond(d); | |
1180 | ||
1181 | return sprintf(buf, "%s %d\n", | |
1182 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1183 | bond->params.primary_reselect); | |
1184 | } | |
1185 | ||
1186 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1187 | struct device_attribute *attr, | |
1188 | const char *buf, size_t count) | |
1189 | { | |
1190 | int new_value, ret = count; | |
1191 | struct bonding *bond = to_bond(d); | |
1192 | ||
1193 | if (!rtnl_trylock()) | |
1194 | return restart_syscall(); | |
1195 | ||
1196 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1197 | if (new_value < 0) { | |
a4aee5c8 | 1198 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1199 | bond->dev->name, |
1200 | (int) strlen(buf) - 1, buf); | |
1201 | ret = -EINVAL; | |
1202 | goto out; | |
1203 | } | |
1204 | ||
1205 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1206 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1207 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1208 | new_value); | |
1209 | ||
e843fa50 | 1210 | block_netpoll_tx(); |
a549952a JP |
1211 | read_lock(&bond->lock); |
1212 | write_lock_bh(&bond->curr_slave_lock); | |
1213 | bond_select_active_slave(bond); | |
1214 | write_unlock_bh(&bond->curr_slave_lock); | |
1215 | read_unlock(&bond->lock); | |
e843fa50 | 1216 | unblock_netpoll_tx(); |
a549952a JP |
1217 | out: |
1218 | rtnl_unlock(); | |
1219 | return ret; | |
1220 | } | |
1221 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1222 | bonding_show_primary_reselect, | |
1223 | bonding_store_primary_reselect); | |
1224 | ||
b76cdba9 MW |
1225 | /* |
1226 | * Show and set the use_carrier flag. | |
1227 | */ | |
43cb76d9 GKH |
1228 | static ssize_t bonding_show_carrier(struct device *d, |
1229 | struct device_attribute *attr, | |
1230 | char *buf) | |
b76cdba9 | 1231 | { |
43cb76d9 | 1232 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1233 | |
7bd46508 | 1234 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1235 | } |
1236 | ||
43cb76d9 GKH |
1237 | static ssize_t bonding_store_carrier(struct device *d, |
1238 | struct device_attribute *attr, | |
1239 | const char *buf, size_t count) | |
b76cdba9 MW |
1240 | { |
1241 | int new_value, ret = count; | |
43cb76d9 | 1242 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1243 | |
1244 | ||
1245 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1246 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1247 | bond->dev->name); |
1248 | ret = -EINVAL; | |
1249 | goto out; | |
1250 | } | |
1251 | if ((new_value == 0) || (new_value == 1)) { | |
1252 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1253 | pr_info("%s: Setting use_carrier to %d.\n", |
1254 | bond->dev->name, new_value); | |
b76cdba9 | 1255 | } else { |
a4aee5c8 JP |
1256 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1257 | bond->dev->name, new_value); | |
b76cdba9 MW |
1258 | } |
1259 | out: | |
672bda33 | 1260 | return ret; |
b76cdba9 | 1261 | } |
3d632c3f SH |
1262 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1263 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1264 | |
1265 | ||
1266 | /* | |
1267 | * Show and set currently active_slave. | |
1268 | */ | |
43cb76d9 GKH |
1269 | static ssize_t bonding_show_active_slave(struct device *d, |
1270 | struct device_attribute *attr, | |
1271 | char *buf) | |
b76cdba9 | 1272 | { |
43cb76d9 | 1273 | struct bonding *bond = to_bond(d); |
278b2083 | 1274 | struct slave *curr; |
16cd0160 | 1275 | int count = 0; |
b76cdba9 | 1276 | |
278b2083 | 1277 | rcu_read_lock(); |
1278 | curr = rcu_dereference(bond->curr_active_slave); | |
b76cdba9 | 1279 | if (USES_PRIMARY(bond->params.mode) && curr) |
7bd46508 | 1280 | count = sprintf(buf, "%s\n", curr->dev->name); |
278b2083 | 1281 | rcu_read_unlock(); |
1282 | ||
b76cdba9 MW |
1283 | return count; |
1284 | } | |
1285 | ||
43cb76d9 GKH |
1286 | static ssize_t bonding_store_active_slave(struct device *d, |
1287 | struct device_attribute *attr, | |
1288 | const char *buf, size_t count) | |
b76cdba9 | 1289 | { |
dec1e90e | 1290 | struct slave *slave, *old_active, *new_active; |
43cb76d9 | 1291 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1292 | struct list_head *iter; |
f4bb2e9c | 1293 | char ifname[IFNAMSIZ]; |
b76cdba9 | 1294 | |
496a60cd EB |
1295 | if (!rtnl_trylock()) |
1296 | return restart_syscall(); | |
e843fa50 | 1297 | |
dec1e90e | 1298 | old_active = new_active = NULL; |
e843fa50 | 1299 | block_netpoll_tx(); |
e934dd78 JV |
1300 | read_lock(&bond->lock); |
1301 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1302 | |
f4bb2e9c | 1303 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 | 1304 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f | 1305 | bond->dev->name, bond->dev->name, bond->params.mode); |
f4bb2e9c AG |
1306 | goto out; |
1307 | } | |
1308 | ||
c84e1590 | 1309 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c AG |
1310 | |
1311 | /* check to see if we are clearing active */ | |
1312 | if (!strlen(ifname) || buf[0] == '\n') { | |
1313 | pr_info("%s: Clearing current active slave.\n", | |
1314 | bond->dev->name); | |
278b2083 | 1315 | rcu_assign_pointer(bond->curr_active_slave, NULL); |
f4bb2e9c AG |
1316 | bond_select_active_slave(bond); |
1317 | goto out; | |
1318 | } | |
1319 | ||
9caff1e7 | 1320 | bond_for_each_slave(bond, slave, iter) { |
f4bb2e9c AG |
1321 | if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
1322 | old_active = bond->curr_active_slave; | |
1323 | new_active = slave; | |
1324 | if (new_active == old_active) { | |
1325 | /* do nothing */ | |
1326 | pr_info("%s: %s is already the current" | |
1327 | " active slave.\n", | |
1328 | bond->dev->name, | |
1329 | slave->dev->name); | |
1330 | goto out; | |
38c4916a | 1331 | } else { |
f4bb2e9c AG |
1332 | if ((new_active) && |
1333 | (old_active) && | |
1334 | (new_active->link == BOND_LINK_UP) && | |
1335 | IS_UP(new_active->dev)) { | |
1336 | pr_info("%s: Setting %s as active" | |
1337 | " slave.\n", | |
a4aee5c8 JP |
1338 | bond->dev->name, |
1339 | slave->dev->name); | |
f4bb2e9c AG |
1340 | bond_change_active_slave(bond, |
1341 | new_active); | |
38c4916a | 1342 | } else { |
f4bb2e9c AG |
1343 | pr_info("%s: Could not set %s as" |
1344 | " active slave; either %s is" | |
1345 | " down or the link is down.\n", | |
1346 | bond->dev->name, | |
1347 | slave->dev->name, | |
1348 | slave->dev->name); | |
b76cdba9 | 1349 | } |
f4bb2e9c | 1350 | goto out; |
b76cdba9 MW |
1351 | } |
1352 | } | |
b76cdba9 | 1353 | } |
f4bb2e9c AG |
1354 | |
1355 | pr_info("%s: Unable to set %.*s as active slave.\n", | |
1356 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
3d632c3f | 1357 | out: |
e934dd78 JV |
1358 | write_unlock_bh(&bond->curr_slave_lock); |
1359 | read_unlock(&bond->lock); | |
e843fa50 NH |
1360 | unblock_netpoll_tx(); |
1361 | ||
6603a6f2 JV |
1362 | rtnl_unlock(); |
1363 | ||
b76cdba9 MW |
1364 | return count; |
1365 | ||
1366 | } | |
3d632c3f SH |
1367 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1368 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1369 | |
1370 | ||
1371 | /* | |
1372 | * Show link status of the bond interface. | |
1373 | */ | |
43cb76d9 GKH |
1374 | static ssize_t bonding_show_mii_status(struct device *d, |
1375 | struct device_attribute *attr, | |
1376 | char *buf) | |
b76cdba9 | 1377 | { |
43cb76d9 | 1378 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1379 | |
278b2083 | 1380 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 1381 | } |
43cb76d9 | 1382 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1383 | |
b76cdba9 MW |
1384 | /* |
1385 | * Show current 802.3ad aggregator ID. | |
1386 | */ | |
43cb76d9 GKH |
1387 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1388 | struct device_attribute *attr, | |
1389 | char *buf) | |
b76cdba9 MW |
1390 | { |
1391 | int count = 0; | |
43cb76d9 | 1392 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1393 | |
1394 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1395 | struct ad_info ad_info; | |
3d632c3f | 1396 | count = sprintf(buf, "%d\n", |
318debd8 | 1397 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1398 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1399 | } |
b76cdba9 MW |
1400 | |
1401 | return count; | |
1402 | } | |
43cb76d9 | 1403 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1404 | |
1405 | ||
1406 | /* | |
1407 | * Show number of active 802.3ad ports. | |
1408 | */ | |
43cb76d9 GKH |
1409 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1410 | struct device_attribute *attr, | |
1411 | char *buf) | |
b76cdba9 MW |
1412 | { |
1413 | int count = 0; | |
43cb76d9 | 1414 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1415 | |
1416 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1417 | struct ad_info ad_info; | |
3d632c3f | 1418 | count = sprintf(buf, "%d\n", |
318debd8 | 1419 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1420 | ? 0 : ad_info.ports); |
b76cdba9 | 1421 | } |
b76cdba9 MW |
1422 | |
1423 | return count; | |
1424 | } | |
43cb76d9 | 1425 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1426 | |
1427 | ||
1428 | /* | |
1429 | * Show current 802.3ad actor key. | |
1430 | */ | |
43cb76d9 GKH |
1431 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1432 | struct device_attribute *attr, | |
1433 | char *buf) | |
b76cdba9 MW |
1434 | { |
1435 | int count = 0; | |
43cb76d9 | 1436 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1437 | |
1438 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1439 | struct ad_info ad_info; | |
3d632c3f | 1440 | count = sprintf(buf, "%d\n", |
318debd8 | 1441 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1442 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1443 | } |
b76cdba9 MW |
1444 | |
1445 | return count; | |
1446 | } | |
43cb76d9 | 1447 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1448 | |
1449 | ||
1450 | /* | |
1451 | * Show current 802.3ad partner key. | |
1452 | */ | |
43cb76d9 GKH |
1453 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1454 | struct device_attribute *attr, | |
1455 | char *buf) | |
b76cdba9 MW |
1456 | { |
1457 | int count = 0; | |
43cb76d9 | 1458 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1459 | |
1460 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1461 | struct ad_info ad_info; | |
3d632c3f | 1462 | count = sprintf(buf, "%d\n", |
318debd8 | 1463 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1464 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1465 | } |
b76cdba9 MW |
1466 | |
1467 | return count; | |
1468 | } | |
43cb76d9 | 1469 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1470 | |
1471 | ||
1472 | /* | |
1473 | * Show current 802.3ad partner mac. | |
1474 | */ | |
43cb76d9 GKH |
1475 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1476 | struct device_attribute *attr, | |
1477 | char *buf) | |
b76cdba9 MW |
1478 | { |
1479 | int count = 0; | |
43cb76d9 | 1480 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1481 | |
1482 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1483 | struct ad_info ad_info; | |
3d632c3f | 1484 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1485 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1486 | } |
b76cdba9 MW |
1487 | |
1488 | return count; | |
1489 | } | |
43cb76d9 | 1490 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1491 | |
bb1d9123 AG |
1492 | /* |
1493 | * Show the queue_ids of the slaves in the current bond. | |
1494 | */ | |
1495 | static ssize_t bonding_show_queue_id(struct device *d, | |
1496 | struct device_attribute *attr, | |
1497 | char *buf) | |
1498 | { | |
bb1d9123 | 1499 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1500 | struct list_head *iter; |
dec1e90e | 1501 | struct slave *slave; |
1502 | int res = 0; | |
bb1d9123 AG |
1503 | |
1504 | if (!rtnl_trylock()) | |
1505 | return restart_syscall(); | |
1506 | ||
1507 | read_lock(&bond->lock); | |
9caff1e7 | 1508 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1509 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1510 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1511 | if ((PAGE_SIZE - res) > 10) |
1512 | res = PAGE_SIZE - 10; | |
1513 | res += sprintf(buf + res, "++more++ "); | |
1514 | break; | |
1515 | } | |
1516 | res += sprintf(buf + res, "%s:%d ", | |
1517 | slave->dev->name, slave->queue_id); | |
1518 | } | |
1519 | read_unlock(&bond->lock); | |
1520 | if (res) | |
1521 | buf[res-1] = '\n'; /* eat the leftover space */ | |
1522 | rtnl_unlock(); | |
dec1e90e | 1523 | |
bb1d9123 AG |
1524 | return res; |
1525 | } | |
1526 | ||
1527 | /* | |
1528 | * Set the queue_ids of the slaves in the current bond. The bond | |
1529 | * interface must be enslaved for this to work. | |
1530 | */ | |
1531 | static ssize_t bonding_store_queue_id(struct device *d, | |
1532 | struct device_attribute *attr, | |
1533 | const char *buffer, size_t count) | |
1534 | { | |
1535 | struct slave *slave, *update_slave; | |
1536 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1537 | struct list_head *iter; |
bb1d9123 | 1538 | u16 qid; |
dec1e90e | 1539 | int ret = count; |
bb1d9123 AG |
1540 | char *delim; |
1541 | struct net_device *sdev = NULL; | |
1542 | ||
1543 | if (!rtnl_trylock()) | |
1544 | return restart_syscall(); | |
1545 | ||
1546 | /* delim will point to queue id if successful */ | |
1547 | delim = strchr(buffer, ':'); | |
1548 | if (!delim) | |
1549 | goto err_no_cmd; | |
1550 | ||
1551 | /* | |
1552 | * Terminate string that points to device name and bump it | |
1553 | * up one, so we can read the queue id there. | |
1554 | */ | |
1555 | *delim = '\0'; | |
1556 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1557 | goto err_no_cmd; | |
1558 | ||
1559 | /* Check buffer length, valid ifname and queue id */ | |
1560 | if (strlen(buffer) > IFNAMSIZ || | |
1561 | !dev_valid_name(buffer) || | |
8a540ff9 | 1562 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1563 | goto err_no_cmd; |
1564 | ||
1565 | /* Get the pointer to that interface if it exists */ | |
1566 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1567 | if (!sdev) | |
1568 | goto err_no_cmd; | |
1569 | ||
1570 | read_lock(&bond->lock); | |
1571 | ||
1572 | /* Search for thes slave and check for duplicate qids */ | |
1573 | update_slave = NULL; | |
9caff1e7 | 1574 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1575 | if (sdev == slave->dev) |
1576 | /* | |
1577 | * We don't need to check the matching | |
1578 | * slave for dups, since we're overwriting it | |
1579 | */ | |
1580 | update_slave = slave; | |
1581 | else if (qid && qid == slave->queue_id) { | |
1582 | goto err_no_cmd_unlock; | |
1583 | } | |
1584 | } | |
1585 | ||
1586 | if (!update_slave) | |
1587 | goto err_no_cmd_unlock; | |
1588 | ||
1589 | /* Actually set the qids for the slave */ | |
1590 | update_slave->queue_id = qid; | |
1591 | ||
1592 | read_unlock(&bond->lock); | |
1593 | out: | |
1594 | rtnl_unlock(); | |
1595 | return ret; | |
1596 | ||
1597 | err_no_cmd_unlock: | |
1598 | read_unlock(&bond->lock); | |
1599 | err_no_cmd: | |
1600 | pr_info("invalid input for queue_id set for %s.\n", | |
1601 | bond->dev->name); | |
1602 | ret = -EPERM; | |
1603 | goto out; | |
1604 | } | |
1605 | ||
1606 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1607 | bonding_store_queue_id); | |
1608 | ||
1609 | ||
ebd8e497 AG |
1610 | /* |
1611 | * Show and set the all_slaves_active flag. | |
1612 | */ | |
1613 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1614 | struct device_attribute *attr, | |
1615 | char *buf) | |
1616 | { | |
1617 | struct bonding *bond = to_bond(d); | |
1618 | ||
1619 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1620 | } | |
1621 | ||
1622 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1623 | struct device_attribute *attr, | |
1624 | const char *buf, size_t count) | |
1625 | { | |
ebd8e497 | 1626 | struct bonding *bond = to_bond(d); |
dec1e90e | 1627 | int new_value, ret = count; |
9caff1e7 | 1628 | struct list_head *iter; |
ebd8e497 AG |
1629 | struct slave *slave; |
1630 | ||
1631 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1632 | pr_err("%s: no all_slaves_active value specified.\n", | |
1633 | bond->dev->name); | |
1634 | ret = -EINVAL; | |
1635 | goto out; | |
1636 | } | |
1637 | ||
1638 | if (new_value == bond->params.all_slaves_active) | |
1639 | goto out; | |
1640 | ||
1641 | if ((new_value == 0) || (new_value == 1)) { | |
1642 | bond->params.all_slaves_active = new_value; | |
1643 | } else { | |
1644 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1645 | bond->dev->name, new_value); | |
1646 | ret = -EINVAL; | |
1647 | goto out; | |
1648 | } | |
b76cdba9 | 1649 | |
e196c0e5 | 1650 | read_lock(&bond->lock); |
9caff1e7 | 1651 | bond_for_each_slave(bond, slave, iter) { |
e30bc066 | 1652 | if (!bond_is_active_slave(slave)) { |
ebd8e497 | 1653 | if (new_value) |
2d7011ca | 1654 | slave->inactive = 0; |
ebd8e497 | 1655 | else |
2d7011ca | 1656 | slave->inactive = 1; |
ebd8e497 AG |
1657 | } |
1658 | } | |
e196c0e5 | 1659 | read_unlock(&bond->lock); |
ebd8e497 | 1660 | out: |
672bda33 | 1661 | return ret; |
ebd8e497 AG |
1662 | } |
1663 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1664 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1665 | |
c2952c31 FL |
1666 | /* |
1667 | * Show and set the number of IGMP membership reports to send on link failure | |
1668 | */ | |
1669 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1670 | struct device_attribute *attr, |
1671 | char *buf) | |
c2952c31 FL |
1672 | { |
1673 | struct bonding *bond = to_bond(d); | |
1674 | ||
1675 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1676 | } | |
1677 | ||
1678 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1679 | struct device_attribute *attr, |
1680 | const char *buf, size_t count) | |
c2952c31 FL |
1681 | { |
1682 | int new_value, ret = count; | |
1683 | struct bonding *bond = to_bond(d); | |
1684 | ||
1685 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1686 | pr_err("%s: no resend_igmp value specified.\n", | |
1687 | bond->dev->name); | |
1688 | ret = -EINVAL; | |
1689 | goto out; | |
1690 | } | |
1691 | ||
94265cf5 | 1692 | if (new_value < 0 || new_value > 255) { |
c2952c31 FL |
1693 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", |
1694 | bond->dev->name, new_value); | |
1695 | ret = -EINVAL; | |
1696 | goto out; | |
1697 | } | |
1698 | ||
1699 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1700 | bond->dev->name, new_value); | |
1701 | bond->params.resend_igmp = new_value; | |
1702 | out: | |
1703 | return ret; | |
1704 | } | |
1705 | ||
1706 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1707 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1708 | ||
7eacd038 NH |
1709 | |
1710 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1711 | struct device_attribute *attr, | |
1712 | char *buf) | |
1713 | { | |
1714 | struct bonding *bond = to_bond(d); | |
1715 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1716 | } | |
1717 | ||
1718 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1719 | struct device_attribute *attr, | |
1720 | const char *buf, size_t count) | |
1721 | { | |
1722 | struct bonding *bond = to_bond(d); | |
1723 | int new_value, ret = count; | |
1724 | ||
1725 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1726 | pr_err("%s: no lp interval value specified.\n", | |
1727 | bond->dev->name); | |
1728 | ret = -EINVAL; | |
1729 | goto out; | |
1730 | } | |
1731 | ||
1732 | if (new_value <= 0) { | |
1733 | pr_err ("%s: lp_interval must be between 1 and %d\n", | |
1734 | bond->dev->name, INT_MAX); | |
1735 | ret = -EINVAL; | |
1736 | goto out; | |
1737 | } | |
1738 | ||
1739 | bond->params.lp_interval = new_value; | |
1740 | out: | |
1741 | return ret; | |
1742 | } | |
1743 | ||
1744 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1745 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1746 | ||
b76cdba9 | 1747 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1748 | &dev_attr_slaves.attr, |
1749 | &dev_attr_mode.attr, | |
dd957c57 | 1750 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1751 | &dev_attr_arp_validate.attr, |
8599b52e | 1752 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1753 | &dev_attr_arp_interval.attr, |
1754 | &dev_attr_arp_ip_target.attr, | |
1755 | &dev_attr_downdelay.attr, | |
1756 | &dev_attr_updelay.attr, | |
1757 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1758 | &dev_attr_ad_select.attr, |
43cb76d9 | 1759 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1760 | &dev_attr_num_grat_arp.attr, |
1761 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1762 | &dev_attr_miimon.attr, |
1763 | &dev_attr_primary.attr, | |
a549952a | 1764 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1765 | &dev_attr_use_carrier.attr, |
1766 | &dev_attr_active_slave.attr, | |
1767 | &dev_attr_mii_status.attr, | |
1768 | &dev_attr_ad_aggregator.attr, | |
1769 | &dev_attr_ad_num_ports.attr, | |
1770 | &dev_attr_ad_actor_key.attr, | |
1771 | &dev_attr_ad_partner_key.attr, | |
1772 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1773 | &dev_attr_queue_id.attr, |
ebd8e497 | 1774 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1775 | &dev_attr_resend_igmp.attr, |
655f8919 | 1776 | &dev_attr_min_links.attr, |
7eacd038 | 1777 | &dev_attr_lp_interval.attr, |
b76cdba9 MW |
1778 | NULL, |
1779 | }; | |
1780 | ||
1781 | static struct attribute_group bonding_group = { | |
1782 | .name = "bonding", | |
1783 | .attrs = per_bond_attrs, | |
1784 | }; | |
1785 | ||
1786 | /* | |
1787 | * Initialize sysfs. This sets up the bonding_masters file in | |
1788 | * /sys/class/net. | |
1789 | */ | |
4c22400a | 1790 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1791 | { |
b8a9787e | 1792 | int ret; |
b76cdba9 | 1793 | |
4c22400a | 1794 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1795 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a EB |
1796 | |
1797 | ret = netdev_class_create_file(&bn->class_attr_bonding_masters); | |
877cbd36 JV |
1798 | /* |
1799 | * Permit multiple loads of the module by ignoring failures to | |
1800 | * create the bonding_masters sysfs file. Bonding devices | |
1801 | * created by second or subsequent loads of the module will | |
1802 | * not be listed in, or controllable by, bonding_masters, but | |
1803 | * will have the usual "bonding" sysfs directory. | |
1804 | * | |
1805 | * This is done to preserve backwards compatibility for | |
1806 | * initscripts/sysconfig, which load bonding multiple times to | |
1807 | * configure multiple bonding devices. | |
1808 | */ | |
1809 | if (ret == -EEXIST) { | |
38d2f38b | 1810 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1811 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1812 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1813 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1814 | class_attr_bonding_masters.attr.name); |
130aa61a | 1815 | ret = 0; |
877cbd36 | 1816 | } |
b76cdba9 MW |
1817 | |
1818 | return ret; | |
1819 | ||
1820 | } | |
1821 | ||
1822 | /* | |
1823 | * Remove /sys/class/net/bonding_masters. | |
1824 | */ | |
4c22400a | 1825 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1826 | { |
4c22400a | 1827 | netdev_class_remove_file(&bn->class_attr_bonding_masters); |
b76cdba9 MW |
1828 | } |
1829 | ||
1830 | /* | |
1831 | * Initialize sysfs for each bond. This sets up and registers | |
1832 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1833 | */ | |
6151b3d4 | 1834 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1835 | { |
6151b3d4 | 1836 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1837 | } |
1838 |