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/sysdev.h> |
30 | #include <linux/fs.h> | |
31 | #include <linux/types.h> | |
32 | #include <linux/string.h> | |
33 | #include <linux/netdevice.h> | |
34 | #include <linux/inetdevice.h> | |
35 | #include <linux/in.h> | |
36 | #include <linux/sysfs.h> | |
b76cdba9 MW |
37 | #include <linux/ctype.h> |
38 | #include <linux/inet.h> | |
39 | #include <linux/rtnetlink.h> | |
5c5129b5 | 40 | #include <linux/etherdevice.h> |
881d966b | 41 | #include <net/net_namespace.h> |
ec87fd3b EB |
42 | #include <net/netns/generic.h> |
43 | #include <linux/nsproxy.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 | { |
ec87fd3b EB |
58 | struct net *net = current->nsproxy->net_ns; |
59 | struct bond_net *bn = net_generic(net, bond_net_id); | |
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 | ||
ec87fd3b | 82 | static struct net_device *bond_get_by_name(struct net *net, const char *ifname) |
373500db | 83 | { |
ec87fd3b | 84 | struct bond_net *bn = net_generic(net, bond_net_id); |
373500db SH |
85 | struct bonding *bond; |
86 | ||
ec87fd3b | 87 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
88 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
89 | return bond->dev; | |
90 | } | |
91 | return NULL; | |
92 | } | |
93 | ||
b76cdba9 MW |
94 | /* |
95 | * "store" function for the bond_masters attribute. This is what | |
96 | * creates and deletes entire bonds. | |
97 | * | |
98 | * The class parameter is ignored. | |
99 | * | |
100 | */ | |
101 | ||
3d632c3f | 102 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 103 | struct class_attribute *attr, |
3d632c3f | 104 | const char *buffer, size_t count) |
b76cdba9 | 105 | { |
ec87fd3b | 106 | struct net *net = current->nsproxy->net_ns; |
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); |
ec87fd3b | 119 | rv = bond_create(net, ifname); |
027ea041 | 120 | if (rv) { |
a4aee5c8 | 121 | pr_info("Bond creation failed.\n"); |
027ea041 | 122 | res = rv; |
b76cdba9 | 123 | } |
373500db SH |
124 | } else if (command[0] == '-') { |
125 | struct net_device *bond_dev; | |
b76cdba9 | 126 | |
027ea041 | 127 | rtnl_lock(); |
ec87fd3b | 128 | bond_dev = bond_get_by_name(net, ifname); |
373500db | 129 | if (bond_dev) { |
a4aee5c8 | 130 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
131 | unregister_netdevice(bond_dev); |
132 | } else { | |
a4aee5c8 | 133 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
134 | res = -ENODEV; |
135 | } | |
136 | rtnl_unlock(); | |
137 | } else | |
138 | goto err_no_cmd; | |
027ea041 | 139 | |
373500db SH |
140 | /* Always return either count or an error. If you return 0, you'll |
141 | * get called forever, which is bad. | |
142 | */ | |
143 | return res; | |
b76cdba9 MW |
144 | |
145 | err_no_cmd: | |
a4aee5c8 | 146 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 147 | return -EPERM; |
b76cdba9 | 148 | } |
373500db | 149 | |
b76cdba9 MW |
150 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
151 | static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO, | |
152 | bonding_show_bonds, bonding_store_bonds); | |
153 | ||
3d632c3f SH |
154 | int bond_create_slave_symlinks(struct net_device *master, |
155 | struct net_device *slave) | |
b76cdba9 MW |
156 | { |
157 | char linkname[IFNAMSIZ+7]; | |
158 | int ret = 0; | |
159 | ||
160 | /* first, create a link from the slave back to the master */ | |
43cb76d9 | 161 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
b76cdba9 MW |
162 | "master"); |
163 | if (ret) | |
164 | return ret; | |
165 | /* next, create a link from the master to the slave */ | |
3d632c3f | 166 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 167 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
b76cdba9 MW |
168 | linkname); |
169 | return ret; | |
170 | ||
171 | } | |
172 | ||
3d632c3f SH |
173 | void bond_destroy_slave_symlinks(struct net_device *master, |
174 | struct net_device *slave) | |
b76cdba9 MW |
175 | { |
176 | char linkname[IFNAMSIZ+7]; | |
177 | ||
43cb76d9 | 178 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
3d632c3f | 179 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 180 | sysfs_remove_link(&(master->dev.kobj), linkname); |
b76cdba9 MW |
181 | } |
182 | ||
183 | ||
184 | /* | |
185 | * Show the slaves in the current bond. | |
186 | */ | |
43cb76d9 GKH |
187 | static ssize_t bonding_show_slaves(struct device *d, |
188 | struct device_attribute *attr, char *buf) | |
b76cdba9 MW |
189 | { |
190 | struct slave *slave; | |
191 | int i, res = 0; | |
43cb76d9 | 192 | struct bonding *bond = to_bond(d); |
b76cdba9 | 193 | |
6603a6f2 | 194 | read_lock(&bond->lock); |
b76cdba9 MW |
195 | bond_for_each_slave(bond, slave, i) { |
196 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
197 | /* not enough space for another interface name */ | |
198 | if ((PAGE_SIZE - res) > 10) | |
199 | res = PAGE_SIZE - 10; | |
7bd46508 | 200 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
201 | break; |
202 | } | |
203 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
204 | } | |
6603a6f2 | 205 | read_unlock(&bond->lock); |
1dcdcd69 WF |
206 | if (res) |
207 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
208 | return res; |
209 | } | |
210 | ||
211 | /* | |
212 | * Set the slaves in the current bond. The bond interface must be | |
213 | * up for this to succeed. | |
f9f3545e JP |
214 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
215 | * All hard work should be done there. | |
b76cdba9 | 216 | */ |
43cb76d9 GKH |
217 | static ssize_t bonding_store_slaves(struct device *d, |
218 | struct device_attribute *attr, | |
219 | const char *buffer, size_t count) | |
b76cdba9 MW |
220 | { |
221 | char command[IFNAMSIZ + 1] = { 0, }; | |
222 | char *ifname; | |
f9f3545e JP |
223 | int res, ret = count; |
224 | struct net_device *dev; | |
43cb76d9 | 225 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
226 | |
227 | /* Quick sanity check -- is the bond interface up? */ | |
228 | if (!(bond->dev->flags & IFF_UP)) { | |
a4aee5c8 JP |
229 | pr_warning("%s: doing slave updates when interface is down.\n", |
230 | bond->dev->name); | |
b76cdba9 MW |
231 | } |
232 | ||
496a60cd EB |
233 | if (!rtnl_trylock()) |
234 | return restart_syscall(); | |
027ea041 | 235 | |
b76cdba9 MW |
236 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
237 | ifname = command + 1; | |
238 | if ((strlen(command) <= 1) || | |
239 | !dev_valid_name(ifname)) | |
240 | goto err_no_cmd; | |
241 | ||
f9f3545e JP |
242 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
243 | if (!dev) { | |
244 | pr_info("%s: Interface %s does not exist!\n", | |
245 | bond->dev->name, ifname); | |
246 | ret = -ENODEV; | |
247 | goto out; | |
248 | } | |
b76cdba9 | 249 | |
f9f3545e JP |
250 | switch (command[0]) { |
251 | case '+': | |
252 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 253 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 254 | break; |
3d632c3f | 255 | |
f9f3545e JP |
256 | case '-': |
257 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
258 | res = bond_release(bond->dev, dev); | |
259 | break; | |
b76cdba9 | 260 | |
f9f3545e JP |
261 | default: |
262 | goto err_no_cmd; | |
b76cdba9 MW |
263 | } |
264 | ||
f9f3545e JP |
265 | if (res) |
266 | ret = res; | |
267 | goto out; | |
268 | ||
b76cdba9 | 269 | err_no_cmd: |
a4aee5c8 JP |
270 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
271 | bond->dev->name); | |
b76cdba9 MW |
272 | ret = -EPERM; |
273 | ||
274 | out: | |
027ea041 | 275 | rtnl_unlock(); |
b76cdba9 MW |
276 | return ret; |
277 | } | |
278 | ||
3d632c3f SH |
279 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
280 | bonding_store_slaves); | |
b76cdba9 MW |
281 | |
282 | /* | |
283 | * Show and set the bonding mode. The bond interface must be down to | |
284 | * change the mode. | |
285 | */ | |
43cb76d9 GKH |
286 | static ssize_t bonding_show_mode(struct device *d, |
287 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 288 | { |
43cb76d9 | 289 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
290 | |
291 | return sprintf(buf, "%s %d\n", | |
292 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 293 | bond->params.mode); |
b76cdba9 MW |
294 | } |
295 | ||
43cb76d9 GKH |
296 | static ssize_t bonding_store_mode(struct device *d, |
297 | struct device_attribute *attr, | |
298 | const char *buf, size_t count) | |
b76cdba9 MW |
299 | { |
300 | int new_value, ret = count; | |
43cb76d9 | 301 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
302 | |
303 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
304 | pr_err("unable to update mode of %s because interface is up.\n", |
305 | bond->dev->name); | |
b76cdba9 MW |
306 | ret = -EPERM; |
307 | goto out; | |
308 | } | |
309 | ||
ece95f7f | 310 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 311 | if (new_value < 0) { |
a4aee5c8 JP |
312 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
313 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
314 | ret = -EINVAL; |
315 | goto out; | |
c5cb002f AG |
316 | } |
317 | if ((new_value == BOND_MODE_ALB || | |
318 | new_value == BOND_MODE_TLB) && | |
319 | bond->params.arp_interval) { | |
320 | pr_err("%s: %s mode is incompatible with arp monitoring.\n", | |
321 | bond->dev->name, bond_mode_tbl[new_value].modename); | |
322 | ret = -EINVAL; | |
323 | goto out; | |
324 | } | |
325 | if (bond->params.mode == BOND_MODE_8023AD) | |
326 | bond_unset_master_3ad_flags(bond); | |
8f903c70 | 327 | |
c5cb002f AG |
328 | if (bond->params.mode == BOND_MODE_ALB) |
329 | bond_unset_master_alb_flags(bond); | |
8f903c70 | 330 | |
c5cb002f AG |
331 | bond->params.mode = new_value; |
332 | bond_set_mode_ops(bond, bond->params.mode); | |
333 | pr_info("%s: setting mode to %s (%d).\n", | |
334 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
335 | new_value); | |
b76cdba9 MW |
336 | out: |
337 | return ret; | |
338 | } | |
3d632c3f SH |
339 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
340 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
341 | |
342 | /* | |
3d632c3f SH |
343 | * Show and set the bonding transmit hash method. |
344 | * The bond interface must be down to change the xmit hash policy. | |
b76cdba9 | 345 | */ |
43cb76d9 GKH |
346 | static ssize_t bonding_show_xmit_hash(struct device *d, |
347 | struct device_attribute *attr, | |
348 | char *buf) | |
b76cdba9 | 349 | { |
43cb76d9 | 350 | struct bonding *bond = to_bond(d); |
b76cdba9 | 351 | |
8e4b9329 WF |
352 | return sprintf(buf, "%s %d\n", |
353 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
354 | bond->params.xmit_policy); | |
b76cdba9 MW |
355 | } |
356 | ||
43cb76d9 GKH |
357 | static ssize_t bonding_store_xmit_hash(struct device *d, |
358 | struct device_attribute *attr, | |
359 | const char *buf, size_t count) | |
b76cdba9 MW |
360 | { |
361 | int new_value, ret = count; | |
43cb76d9 | 362 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
363 | |
364 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 365 | pr_err("%s: Interface is up. Unable to update xmit policy.\n", |
b76cdba9 MW |
366 | bond->dev->name); |
367 | ret = -EPERM; | |
368 | goto out; | |
369 | } | |
370 | ||
ece95f7f | 371 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 372 | if (new_value < 0) { |
a4aee5c8 | 373 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
374 | bond->dev->name, |
375 | (int)strlen(buf) - 1, buf); | |
376 | ret = -EINVAL; | |
377 | goto out; | |
378 | } else { | |
379 | bond->params.xmit_policy = new_value; | |
380 | bond_set_mode_ops(bond, bond->params.mode); | |
a4aee5c8 | 381 | pr_info("%s: setting xmit hash policy to %s (%d).\n", |
3d632c3f SH |
382 | bond->dev->name, |
383 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 MW |
384 | } |
385 | out: | |
386 | return ret; | |
387 | } | |
3d632c3f SH |
388 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
389 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 390 | |
f5b2b966 JV |
391 | /* |
392 | * Show and set arp_validate. | |
393 | */ | |
43cb76d9 GKH |
394 | static ssize_t bonding_show_arp_validate(struct device *d, |
395 | struct device_attribute *attr, | |
396 | char *buf) | |
f5b2b966 | 397 | { |
43cb76d9 | 398 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
399 | |
400 | return sprintf(buf, "%s %d\n", | |
401 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 402 | bond->params.arp_validate); |
f5b2b966 JV |
403 | } |
404 | ||
43cb76d9 GKH |
405 | static ssize_t bonding_store_arp_validate(struct device *d, |
406 | struct device_attribute *attr, | |
407 | const char *buf, size_t count) | |
f5b2b966 JV |
408 | { |
409 | int new_value; | |
43cb76d9 | 410 | struct bonding *bond = to_bond(d); |
f5b2b966 | 411 | |
ece95f7f | 412 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 413 | if (new_value < 0) { |
a4aee5c8 | 414 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 JV |
415 | bond->dev->name, buf); |
416 | return -EINVAL; | |
417 | } | |
418 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
a4aee5c8 | 419 | pr_err("%s: arp_validate only supported in active-backup mode.\n", |
f5b2b966 JV |
420 | bond->dev->name); |
421 | return -EINVAL; | |
422 | } | |
a4aee5c8 JP |
423 | pr_info("%s: setting arp_validate to %s (%d).\n", |
424 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
425 | new_value); | |
f5b2b966 | 426 | |
3d632c3f | 427 | if (!bond->params.arp_validate && new_value) |
f5b2b966 | 428 | bond_register_arp(bond); |
3d632c3f | 429 | else if (bond->params.arp_validate && !new_value) |
f5b2b966 | 430 | bond_unregister_arp(bond); |
f5b2b966 JV |
431 | |
432 | bond->params.arp_validate = new_value; | |
433 | ||
434 | return count; | |
435 | } | |
436 | ||
3d632c3f SH |
437 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
438 | bonding_store_arp_validate); | |
f5b2b966 | 439 | |
dd957c57 JV |
440 | /* |
441 | * Show and store fail_over_mac. User only allowed to change the | |
442 | * value when there are no slaves. | |
443 | */ | |
3d632c3f SH |
444 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
445 | struct device_attribute *attr, | |
446 | char *buf) | |
dd957c57 JV |
447 | { |
448 | struct bonding *bond = to_bond(d); | |
449 | ||
3915c1e8 JV |
450 | return sprintf(buf, "%s %d\n", |
451 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
452 | bond->params.fail_over_mac); | |
dd957c57 JV |
453 | } |
454 | ||
3d632c3f SH |
455 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
456 | struct device_attribute *attr, | |
457 | const char *buf, size_t count) | |
dd957c57 JV |
458 | { |
459 | int new_value; | |
dd957c57 JV |
460 | struct bonding *bond = to_bond(d); |
461 | ||
462 | if (bond->slave_cnt != 0) { | |
a4aee5c8 | 463 | pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n", |
dd957c57 | 464 | bond->dev->name); |
3915c1e8 | 465 | return -EPERM; |
dd957c57 JV |
466 | } |
467 | ||
3915c1e8 JV |
468 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
469 | if (new_value < 0) { | |
a4aee5c8 | 470 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 JV |
471 | bond->dev->name, buf); |
472 | return -EINVAL; | |
dd957c57 JV |
473 | } |
474 | ||
3915c1e8 | 475 | bond->params.fail_over_mac = new_value; |
a4aee5c8 JP |
476 | pr_info("%s: Setting fail_over_mac to %s (%d).\n", |
477 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
478 | new_value); | |
3915c1e8 JV |
479 | |
480 | return count; | |
dd957c57 JV |
481 | } |
482 | ||
3d632c3f SH |
483 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
484 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 485 | |
b76cdba9 MW |
486 | /* |
487 | * Show and set the arp timer interval. There are two tricky bits | |
488 | * here. First, if ARP monitoring is activated, then we must disable | |
489 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
490 | * start it. | |
491 | */ | |
43cb76d9 GKH |
492 | static ssize_t bonding_show_arp_interval(struct device *d, |
493 | struct device_attribute *attr, | |
494 | char *buf) | |
b76cdba9 | 495 | { |
43cb76d9 | 496 | struct bonding *bond = to_bond(d); |
b76cdba9 | 497 | |
7bd46508 | 498 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
499 | } |
500 | ||
43cb76d9 GKH |
501 | static ssize_t bonding_store_arp_interval(struct device *d, |
502 | struct device_attribute *attr, | |
503 | const char *buf, size_t count) | |
b76cdba9 MW |
504 | { |
505 | int new_value, ret = count; | |
43cb76d9 | 506 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
507 | |
508 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 509 | pr_err("%s: no arp_interval value specified.\n", |
b76cdba9 MW |
510 | bond->dev->name); |
511 | ret = -EINVAL; | |
512 | goto out; | |
513 | } | |
514 | if (new_value < 0) { | |
a4aee5c8 | 515 | pr_err("%s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", |
b76cdba9 MW |
516 | bond->dev->name, new_value, INT_MAX); |
517 | ret = -EINVAL; | |
518 | goto out; | |
519 | } | |
c5cb002f AG |
520 | if (bond->params.mode == BOND_MODE_ALB || |
521 | bond->params.mode == BOND_MODE_TLB) { | |
522 | pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n", | |
523 | bond->dev->name, bond->dev->name); | |
524 | ret = -EINVAL; | |
525 | goto out; | |
526 | } | |
a4aee5c8 JP |
527 | pr_info("%s: Setting ARP monitoring interval to %d.\n", |
528 | bond->dev->name, new_value); | |
b76cdba9 | 529 | bond->params.arp_interval = new_value; |
6cf3f41e JV |
530 | if (bond->params.arp_interval) |
531 | bond->dev->priv_flags |= IFF_MASTER_ARPMON; | |
b76cdba9 | 532 | if (bond->params.miimon) { |
a4aee5c8 JP |
533 | pr_info("%s: ARP monitoring cannot be used with MII monitoring. %s Disabling MII monitoring.\n", |
534 | bond->dev->name, bond->dev->name); | |
b76cdba9 | 535 | bond->params.miimon = 0; |
1b76b316 JV |
536 | if (delayed_work_pending(&bond->mii_work)) { |
537 | cancel_delayed_work(&bond->mii_work); | |
538 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
539 | } |
540 | } | |
541 | if (!bond->params.arp_targets[0]) { | |
a4aee5c8 JP |
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 | */ | |
1b76b316 JV |
551 | if (!delayed_work_pending(&bond->arp_work)) { |
552 | if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) | |
553 | INIT_DELAYED_WORK(&bond->arp_work, | |
554 | bond_activebackup_arp_mon); | |
555 | else | |
556 | INIT_DELAYED_WORK(&bond->arp_work, | |
557 | bond_loadbalance_arp_mon); | |
558 | ||
559 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
b76cdba9 MW |
560 | } |
561 | } | |
562 | ||
563 | out: | |
564 | return ret; | |
565 | } | |
3d632c3f SH |
566 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
567 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
568 | |
569 | /* | |
570 | * Show and set the arp targets. | |
571 | */ | |
43cb76d9 GKH |
572 | static ssize_t bonding_show_arp_targets(struct device *d, |
573 | struct device_attribute *attr, | |
574 | char *buf) | |
b76cdba9 MW |
575 | { |
576 | int i, res = 0; | |
43cb76d9 | 577 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
578 | |
579 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
580 | if (bond->params.arp_targets[i]) | |
63779436 HH |
581 | res += sprintf(buf + res, "%pI4 ", |
582 | &bond->params.arp_targets[i]); | |
b76cdba9 | 583 | } |
1dcdcd69 WF |
584 | if (res) |
585 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
586 | return res; |
587 | } | |
588 | ||
43cb76d9 GKH |
589 | static ssize_t bonding_store_arp_targets(struct device *d, |
590 | struct device_attribute *attr, | |
591 | const char *buf, size_t count) | |
b76cdba9 | 592 | { |
d3bb52b0 | 593 | __be32 newtarget; |
b76cdba9 | 594 | int i = 0, done = 0, ret = count; |
43cb76d9 | 595 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 596 | __be32 *targets; |
b76cdba9 MW |
597 | |
598 | targets = bond->params.arp_targets; | |
599 | newtarget = in_aton(buf + 1); | |
600 | /* look for adds */ | |
601 | if (buf[0] == '+') { | |
d3bb52b0 | 602 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 603 | pr_err("%s: invalid ARP target %pI4 specified for addition\n", |
63779436 | 604 | bond->dev->name, &newtarget); |
b76cdba9 MW |
605 | ret = -EINVAL; |
606 | goto out; | |
607 | } | |
608 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 609 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 610 | if (targets[i] == newtarget) { /* duplicate */ |
a4aee5c8 | 611 | pr_err("%s: ARP target %pI4 is already present\n", |
63779436 | 612 | bond->dev->name, &newtarget); |
b76cdba9 MW |
613 | ret = -EINVAL; |
614 | goto out; | |
615 | } | |
5a31bec0 | 616 | if (targets[i] == 0) { |
a4aee5c8 JP |
617 | pr_info("%s: adding ARP target %pI4.\n", |
618 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
619 | done = 1; |
620 | targets[i] = newtarget; | |
621 | } | |
622 | } | |
623 | if (!done) { | |
a4aee5c8 | 624 | pr_err("%s: ARP target table is full!\n", |
b76cdba9 MW |
625 | bond->dev->name); |
626 | ret = -EINVAL; | |
627 | goto out; | |
628 | } | |
629 | ||
3d632c3f | 630 | } else if (buf[0] == '-') { |
d3bb52b0 | 631 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
a4aee5c8 | 632 | pr_err("%s: invalid ARP target %pI4 specified for removal\n", |
63779436 | 633 | bond->dev->name, &newtarget); |
b76cdba9 MW |
634 | ret = -EINVAL; |
635 | goto out; | |
636 | } | |
637 | ||
5a31bec0 | 638 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 639 | if (targets[i] == newtarget) { |
5a31bec0 | 640 | int j; |
a4aee5c8 JP |
641 | pr_info("%s: removing ARP target %pI4.\n", |
642 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
643 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
644 | targets[j] = targets[j+1]; | |
645 | ||
646 | targets[j] = 0; | |
b76cdba9 MW |
647 | done = 1; |
648 | } | |
649 | } | |
650 | if (!done) { | |
a4aee5c8 JP |
651 | pr_info("%s: unable to remove nonexistent ARP target %pI4.\n", |
652 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
653 | ret = -EINVAL; |
654 | goto out; | |
655 | } | |
3d632c3f | 656 | } else { |
a4aee5c8 JP |
657 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
658 | bond->dev->name); | |
b76cdba9 MW |
659 | ret = -EPERM; |
660 | goto out; | |
661 | } | |
662 | ||
663 | out: | |
664 | return ret; | |
665 | } | |
43cb76d9 | 666 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
667 | |
668 | /* | |
669 | * Show and set the up and down delays. These must be multiples of the | |
670 | * MII monitoring value, and are stored internally as the multiplier. | |
671 | * Thus, we must translate to MS for the real world. | |
672 | */ | |
43cb76d9 GKH |
673 | static ssize_t bonding_show_downdelay(struct device *d, |
674 | struct device_attribute *attr, | |
675 | char *buf) | |
b76cdba9 | 676 | { |
43cb76d9 | 677 | struct bonding *bond = to_bond(d); |
b76cdba9 | 678 | |
7bd46508 | 679 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
680 | } |
681 | ||
43cb76d9 GKH |
682 | static ssize_t bonding_store_downdelay(struct device *d, |
683 | struct device_attribute *attr, | |
684 | const char *buf, size_t count) | |
b76cdba9 MW |
685 | { |
686 | int new_value, ret = count; | |
43cb76d9 | 687 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
688 | |
689 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 690 | pr_err("%s: Unable to set down delay as MII monitoring is disabled\n", |
b76cdba9 MW |
691 | bond->dev->name); |
692 | ret = -EPERM; | |
693 | goto out; | |
694 | } | |
695 | ||
696 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 697 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
b76cdba9 MW |
698 | ret = -EINVAL; |
699 | goto out; | |
700 | } | |
701 | if (new_value < 0) { | |
a4aee5c8 | 702 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
703 | bond->dev->name, new_value, 1, INT_MAX); |
704 | ret = -EINVAL; | |
705 | goto out; | |
706 | } else { | |
707 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 708 | pr_warning("%s: Warning: down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n", |
e5e2a8fd JP |
709 | bond->dev->name, new_value, |
710 | bond->params.miimon, | |
711 | (new_value / bond->params.miimon) * | |
712 | bond->params.miimon); | |
b76cdba9 MW |
713 | } |
714 | bond->params.downdelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
715 | pr_info("%s: Setting down delay to %d.\n", |
716 | bond->dev->name, | |
717 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
718 | |
719 | } | |
720 | ||
721 | out: | |
722 | return ret; | |
723 | } | |
3d632c3f SH |
724 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
725 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 726 | |
43cb76d9 GKH |
727 | static ssize_t bonding_show_updelay(struct device *d, |
728 | struct device_attribute *attr, | |
729 | char *buf) | |
b76cdba9 | 730 | { |
43cb76d9 | 731 | struct bonding *bond = to_bond(d); |
b76cdba9 | 732 | |
7bd46508 | 733 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
734 | |
735 | } | |
736 | ||
43cb76d9 GKH |
737 | static ssize_t bonding_store_updelay(struct device *d, |
738 | struct device_attribute *attr, | |
739 | const char *buf, size_t count) | |
b76cdba9 MW |
740 | { |
741 | int new_value, ret = count; | |
43cb76d9 | 742 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
743 | |
744 | if (!(bond->params.miimon)) { | |
a4aee5c8 | 745 | pr_err("%s: Unable to set up delay as MII monitoring is disabled\n", |
b76cdba9 MW |
746 | bond->dev->name); |
747 | ret = -EPERM; | |
748 | goto out; | |
749 | } | |
750 | ||
751 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 752 | pr_err("%s: no up delay value specified.\n", |
b76cdba9 MW |
753 | bond->dev->name); |
754 | ret = -EINVAL; | |
755 | goto out; | |
756 | } | |
757 | if (new_value < 0) { | |
a4aee5c8 | 758 | pr_err("%s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
759 | bond->dev->name, new_value, 1, INT_MAX); |
760 | ret = -EINVAL; | |
761 | goto out; | |
762 | } else { | |
763 | if ((new_value % bond->params.miimon) != 0) { | |
a4aee5c8 | 764 | pr_warning("%s: Warning: up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n", |
e5e2a8fd JP |
765 | bond->dev->name, new_value, |
766 | bond->params.miimon, | |
767 | (new_value / bond->params.miimon) * | |
768 | bond->params.miimon); | |
b76cdba9 MW |
769 | } |
770 | bond->params.updelay = new_value / bond->params.miimon; | |
a4aee5c8 JP |
771 | pr_info("%s: Setting up delay to %d.\n", |
772 | bond->dev->name, | |
773 | bond->params.updelay * bond->params.miimon); | |
b76cdba9 MW |
774 | } |
775 | ||
776 | out: | |
777 | return ret; | |
778 | } | |
3d632c3f SH |
779 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
780 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
781 | |
782 | /* | |
783 | * Show and set the LACP interval. Interface must be down, and the mode | |
784 | * must be set to 802.3ad mode. | |
785 | */ | |
43cb76d9 GKH |
786 | static ssize_t bonding_show_lacp(struct device *d, |
787 | struct device_attribute *attr, | |
788 | char *buf) | |
b76cdba9 | 789 | { |
43cb76d9 | 790 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
791 | |
792 | return sprintf(buf, "%s %d\n", | |
793 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 794 | bond->params.lacp_fast); |
b76cdba9 MW |
795 | } |
796 | ||
43cb76d9 GKH |
797 | static ssize_t bonding_store_lacp(struct device *d, |
798 | struct device_attribute *attr, | |
799 | const char *buf, size_t count) | |
b76cdba9 MW |
800 | { |
801 | int new_value, ret = count; | |
43cb76d9 | 802 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
803 | |
804 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 | 805 | pr_err("%s: Unable to update LACP rate because interface is up.\n", |
b76cdba9 MW |
806 | bond->dev->name); |
807 | ret = -EPERM; | |
808 | goto out; | |
809 | } | |
810 | ||
811 | if (bond->params.mode != BOND_MODE_8023AD) { | |
a4aee5c8 | 812 | pr_err("%s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
b76cdba9 MW |
813 | bond->dev->name); |
814 | ret = -EPERM; | |
815 | goto out; | |
816 | } | |
817 | ||
ece95f7f | 818 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
819 | |
820 | if ((new_value == 1) || (new_value == 0)) { | |
821 | bond->params.lacp_fast = new_value; | |
a4aee5c8 | 822 | pr_info("%s: Setting LACP rate to %s (%d).\n", |
3d632c3f SH |
823 | bond->dev->name, bond_lacp_tbl[new_value].modename, |
824 | new_value); | |
b76cdba9 | 825 | } else { |
a4aee5c8 | 826 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 827 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
828 | ret = -EINVAL; |
829 | } | |
830 | out: | |
831 | return ret; | |
832 | } | |
3d632c3f SH |
833 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
834 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 835 | |
fd989c83 JV |
836 | static ssize_t bonding_show_ad_select(struct device *d, |
837 | struct device_attribute *attr, | |
838 | char *buf) | |
839 | { | |
840 | struct bonding *bond = to_bond(d); | |
841 | ||
842 | return sprintf(buf, "%s %d\n", | |
843 | ad_select_tbl[bond->params.ad_select].modename, | |
844 | bond->params.ad_select); | |
845 | } | |
846 | ||
847 | ||
848 | static ssize_t bonding_store_ad_select(struct device *d, | |
849 | struct device_attribute *attr, | |
850 | const char *buf, size_t count) | |
851 | { | |
852 | int new_value, ret = count; | |
853 | struct bonding *bond = to_bond(d); | |
854 | ||
855 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
856 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
857 | bond->dev->name); | |
fd989c83 JV |
858 | ret = -EPERM; |
859 | goto out; | |
860 | } | |
861 | ||
862 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
863 | ||
864 | if (new_value != -1) { | |
865 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
866 | pr_info("%s: Setting ad_select to %s (%d).\n", |
867 | bond->dev->name, ad_select_tbl[new_value].modename, | |
868 | new_value); | |
fd989c83 | 869 | } else { |
a4aee5c8 | 870 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
871 | bond->dev->name, (int)strlen(buf) - 1, buf); |
872 | ret = -EINVAL; | |
873 | } | |
874 | out: | |
875 | return ret; | |
876 | } | |
3d632c3f SH |
877 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
878 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 879 | |
7893b249 MS |
880 | /* |
881 | * Show and set the number of grat ARP to send after a failover event. | |
882 | */ | |
883 | static ssize_t bonding_show_n_grat_arp(struct device *d, | |
884 | struct device_attribute *attr, | |
885 | char *buf) | |
886 | { | |
887 | struct bonding *bond = to_bond(d); | |
888 | ||
889 | return sprintf(buf, "%d\n", bond->params.num_grat_arp); | |
890 | } | |
891 | ||
892 | static ssize_t bonding_store_n_grat_arp(struct device *d, | |
893 | struct device_attribute *attr, | |
894 | const char *buf, size_t count) | |
895 | { | |
896 | int new_value, ret = count; | |
897 | struct bonding *bond = to_bond(d); | |
898 | ||
899 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 900 | pr_err("%s: no num_grat_arp value specified.\n", |
7893b249 MS |
901 | bond->dev->name); |
902 | ret = -EINVAL; | |
903 | goto out; | |
904 | } | |
905 | if (new_value < 0 || new_value > 255) { | |
a4aee5c8 | 906 | pr_err("%s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n", |
7893b249 MS |
907 | bond->dev->name, new_value); |
908 | ret = -EINVAL; | |
909 | goto out; | |
910 | } else { | |
911 | bond->params.num_grat_arp = new_value; | |
912 | } | |
913 | out: | |
914 | return ret; | |
915 | } | |
3d632c3f SH |
916 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, |
917 | bonding_show_n_grat_arp, bonding_store_n_grat_arp); | |
305d552a BH |
918 | |
919 | /* | |
3d632c3f | 920 | * Show and set the number of unsolicited NA's to send after a failover event. |
305d552a BH |
921 | */ |
922 | static ssize_t bonding_show_n_unsol_na(struct device *d, | |
923 | struct device_attribute *attr, | |
924 | char *buf) | |
925 | { | |
926 | struct bonding *bond = to_bond(d); | |
927 | ||
928 | return sprintf(buf, "%d\n", bond->params.num_unsol_na); | |
929 | } | |
930 | ||
931 | static ssize_t bonding_store_n_unsol_na(struct device *d, | |
932 | struct device_attribute *attr, | |
933 | const char *buf, size_t count) | |
934 | { | |
935 | int new_value, ret = count; | |
936 | struct bonding *bond = to_bond(d); | |
937 | ||
938 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 939 | pr_err("%s: no num_unsol_na value specified.\n", |
305d552a BH |
940 | bond->dev->name); |
941 | ret = -EINVAL; | |
942 | goto out; | |
943 | } | |
3d632c3f | 944 | |
305d552a | 945 | if (new_value < 0 || new_value > 255) { |
a4aee5c8 | 946 | pr_err("%s: Invalid num_unsol_na value %d not in range 0-255; rejected.\n", |
305d552a BH |
947 | bond->dev->name, new_value); |
948 | ret = -EINVAL; | |
949 | goto out; | |
3d632c3f | 950 | } else |
305d552a | 951 | bond->params.num_unsol_na = new_value; |
305d552a BH |
952 | out: |
953 | return ret; | |
954 | } | |
3d632c3f SH |
955 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, |
956 | bonding_show_n_unsol_na, bonding_store_n_unsol_na); | |
305d552a | 957 | |
b76cdba9 MW |
958 | /* |
959 | * Show and set the MII monitor interval. There are two tricky bits | |
960 | * here. First, if MII monitoring is activated, then we must disable | |
961 | * ARP monitoring. Second, if the timer isn't running, we must | |
962 | * start it. | |
963 | */ | |
43cb76d9 GKH |
964 | static ssize_t bonding_show_miimon(struct device *d, |
965 | struct device_attribute *attr, | |
966 | char *buf) | |
b76cdba9 | 967 | { |
43cb76d9 | 968 | struct bonding *bond = to_bond(d); |
b76cdba9 | 969 | |
7bd46508 | 970 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
971 | } |
972 | ||
43cb76d9 GKH |
973 | static ssize_t bonding_store_miimon(struct device *d, |
974 | struct device_attribute *attr, | |
975 | const char *buf, size_t count) | |
b76cdba9 MW |
976 | { |
977 | int new_value, ret = count; | |
43cb76d9 | 978 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
979 | |
980 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 981 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 MW |
982 | bond->dev->name); |
983 | ret = -EINVAL; | |
984 | goto out; | |
985 | } | |
986 | if (new_value < 0) { | |
a4aee5c8 | 987 | pr_err("%s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
b76cdba9 MW |
988 | bond->dev->name, new_value, 1, INT_MAX); |
989 | ret = -EINVAL; | |
990 | goto out; | |
991 | } else { | |
a4aee5c8 JP |
992 | pr_info("%s: Setting MII monitoring interval to %d.\n", |
993 | bond->dev->name, new_value); | |
b76cdba9 | 994 | bond->params.miimon = new_value; |
3d632c3f | 995 | if (bond->params.updelay) |
a4aee5c8 JP |
996 | pr_info("%s: Note: Updating updelay (to %d) since it is a multiple of the miimon value.\n", |
997 | bond->dev->name, | |
998 | bond->params.updelay * bond->params.miimon); | |
3d632c3f | 999 | if (bond->params.downdelay) |
a4aee5c8 JP |
1000 | pr_info("%s: Note: Updating downdelay (to %d) since it is a multiple of the miimon value.\n", |
1001 | bond->dev->name, | |
1002 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 | 1003 | if (bond->params.arp_interval) { |
a4aee5c8 JP |
1004 | pr_info("%s: MII monitoring cannot be used with ARP monitoring. Disabling ARP monitoring...\n", |
1005 | bond->dev->name); | |
b76cdba9 | 1006 | bond->params.arp_interval = 0; |
6cf3f41e | 1007 | bond->dev->priv_flags &= ~IFF_MASTER_ARPMON; |
f5b2b966 JV |
1008 | if (bond->params.arp_validate) { |
1009 | bond_unregister_arp(bond); | |
1010 | bond->params.arp_validate = | |
1011 | BOND_ARP_VALIDATE_NONE; | |
1012 | } | |
1b76b316 JV |
1013 | if (delayed_work_pending(&bond->arp_work)) { |
1014 | cancel_delayed_work(&bond->arp_work); | |
1015 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
1016 | } |
1017 | } | |
1018 | ||
1019 | if (bond->dev->flags & IFF_UP) { | |
1020 | /* If the interface is up, we may need to fire off | |
1021 | * the MII timer. If the interface is down, the | |
1022 | * timer will get fired off when the open function | |
1023 | * is called. | |
1024 | */ | |
1b76b316 JV |
1025 | if (!delayed_work_pending(&bond->mii_work)) { |
1026 | INIT_DELAYED_WORK(&bond->mii_work, | |
1027 | bond_mii_monitor); | |
1028 | queue_delayed_work(bond->wq, | |
1029 | &bond->mii_work, 0); | |
b76cdba9 MW |
1030 | } |
1031 | } | |
1032 | } | |
1033 | out: | |
1034 | return ret; | |
1035 | } | |
3d632c3f SH |
1036 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1037 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1038 | |
1039 | /* | |
1040 | * Show and set the primary slave. The store function is much | |
1041 | * simpler than bonding_store_slaves function because it only needs to | |
1042 | * handle one interface name. | |
1043 | * The bond must be a mode that supports a primary for this be | |
1044 | * set. | |
1045 | */ | |
43cb76d9 GKH |
1046 | static ssize_t bonding_show_primary(struct device *d, |
1047 | struct device_attribute *attr, | |
1048 | char *buf) | |
b76cdba9 MW |
1049 | { |
1050 | int count = 0; | |
43cb76d9 | 1051 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1052 | |
1053 | if (bond->primary_slave) | |
7bd46508 | 1054 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1055 | |
1056 | return count; | |
1057 | } | |
1058 | ||
43cb76d9 GKH |
1059 | static ssize_t bonding_store_primary(struct device *d, |
1060 | struct device_attribute *attr, | |
1061 | const char *buf, size_t count) | |
b76cdba9 MW |
1062 | { |
1063 | int i; | |
1064 | struct slave *slave; | |
43cb76d9 | 1065 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1066 | |
496a60cd EB |
1067 | if (!rtnl_trylock()) |
1068 | return restart_syscall(); | |
e843fa50 | 1069 | block_netpoll_tx(); |
e934dd78 JV |
1070 | read_lock(&bond->lock); |
1071 | write_lock_bh(&bond->curr_slave_lock); | |
1072 | ||
b76cdba9 | 1073 | if (!USES_PRIMARY(bond->params.mode)) { |
a4aee5c8 JP |
1074 | pr_info("%s: Unable to set primary slave; %s is in mode %d\n", |
1075 | bond->dev->name, bond->dev->name, bond->params.mode); | |
b76cdba9 MW |
1076 | } else { |
1077 | bond_for_each_slave(bond, slave, i) { | |
1078 | if (strnicmp | |
1079 | (slave->dev->name, buf, | |
1080 | strlen(slave->dev->name)) == 0) { | |
a4aee5c8 JP |
1081 | pr_info("%s: Setting %s as primary slave.\n", |
1082 | bond->dev->name, slave->dev->name); | |
b76cdba9 | 1083 | bond->primary_slave = slave; |
ce501caf | 1084 | strcpy(bond->params.primary, slave->dev->name); |
b76cdba9 MW |
1085 | bond_select_active_slave(bond); |
1086 | goto out; | |
1087 | } | |
1088 | } | |
1089 | ||
1090 | /* if we got here, then we didn't match the name of any slave */ | |
1091 | ||
1092 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
a4aee5c8 JP |
1093 | pr_info("%s: Setting primary slave to None.\n", |
1094 | bond->dev->name); | |
3418db7c | 1095 | bond->primary_slave = NULL; |
b76cdba9 MW |
1096 | bond_select_active_slave(bond); |
1097 | } else { | |
a4aee5c8 JP |
1098 | pr_info("%s: Unable to set %.*s as primary slave as it is not a slave.\n", |
1099 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
1100 | } |
1101 | } | |
1102 | out: | |
e934dd78 JV |
1103 | write_unlock_bh(&bond->curr_slave_lock); |
1104 | read_unlock(&bond->lock); | |
e843fa50 | 1105 | unblock_netpoll_tx(); |
6603a6f2 JV |
1106 | rtnl_unlock(); |
1107 | ||
b76cdba9 MW |
1108 | return count; |
1109 | } | |
3d632c3f SH |
1110 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1111 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 1112 | |
a549952a JP |
1113 | /* |
1114 | * Show and set the primary_reselect flag. | |
1115 | */ | |
1116 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
1117 | struct device_attribute *attr, | |
1118 | char *buf) | |
1119 | { | |
1120 | struct bonding *bond = to_bond(d); | |
1121 | ||
1122 | return sprintf(buf, "%s %d\n", | |
1123 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
1124 | bond->params.primary_reselect); | |
1125 | } | |
1126 | ||
1127 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
1128 | struct device_attribute *attr, | |
1129 | const char *buf, size_t count) | |
1130 | { | |
1131 | int new_value, ret = count; | |
1132 | struct bonding *bond = to_bond(d); | |
1133 | ||
1134 | if (!rtnl_trylock()) | |
1135 | return restart_syscall(); | |
1136 | ||
1137 | new_value = bond_parse_parm(buf, pri_reselect_tbl); | |
1138 | if (new_value < 0) { | |
a4aee5c8 | 1139 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
1140 | bond->dev->name, |
1141 | (int) strlen(buf) - 1, buf); | |
1142 | ret = -EINVAL; | |
1143 | goto out; | |
1144 | } | |
1145 | ||
1146 | bond->params.primary_reselect = new_value; | |
a4aee5c8 | 1147 | pr_info("%s: setting primary_reselect to %s (%d).\n", |
a549952a JP |
1148 | bond->dev->name, pri_reselect_tbl[new_value].modename, |
1149 | new_value); | |
1150 | ||
e843fa50 | 1151 | block_netpoll_tx(); |
a549952a JP |
1152 | read_lock(&bond->lock); |
1153 | write_lock_bh(&bond->curr_slave_lock); | |
1154 | bond_select_active_slave(bond); | |
1155 | write_unlock_bh(&bond->curr_slave_lock); | |
1156 | read_unlock(&bond->lock); | |
e843fa50 | 1157 | unblock_netpoll_tx(); |
a549952a JP |
1158 | out: |
1159 | rtnl_unlock(); | |
1160 | return ret; | |
1161 | } | |
1162 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
1163 | bonding_show_primary_reselect, | |
1164 | bonding_store_primary_reselect); | |
1165 | ||
b76cdba9 MW |
1166 | /* |
1167 | * Show and set the use_carrier flag. | |
1168 | */ | |
43cb76d9 GKH |
1169 | static ssize_t bonding_show_carrier(struct device *d, |
1170 | struct device_attribute *attr, | |
1171 | char *buf) | |
b76cdba9 | 1172 | { |
43cb76d9 | 1173 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1174 | |
7bd46508 | 1175 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1176 | } |
1177 | ||
43cb76d9 GKH |
1178 | static ssize_t bonding_store_carrier(struct device *d, |
1179 | struct device_attribute *attr, | |
1180 | const char *buf, size_t count) | |
b76cdba9 MW |
1181 | { |
1182 | int new_value, ret = count; | |
43cb76d9 | 1183 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1184 | |
1185 | ||
1186 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 1187 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 MW |
1188 | bond->dev->name); |
1189 | ret = -EINVAL; | |
1190 | goto out; | |
1191 | } | |
1192 | if ((new_value == 0) || (new_value == 1)) { | |
1193 | bond->params.use_carrier = new_value; | |
a4aee5c8 JP |
1194 | pr_info("%s: Setting use_carrier to %d.\n", |
1195 | bond->dev->name, new_value); | |
b76cdba9 | 1196 | } else { |
a4aee5c8 JP |
1197 | pr_info("%s: Ignoring invalid use_carrier value %d.\n", |
1198 | bond->dev->name, new_value); | |
b76cdba9 MW |
1199 | } |
1200 | out: | |
1201 | return count; | |
1202 | } | |
3d632c3f SH |
1203 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1204 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1205 | |
1206 | ||
1207 | /* | |
1208 | * Show and set currently active_slave. | |
1209 | */ | |
43cb76d9 GKH |
1210 | static ssize_t bonding_show_active_slave(struct device *d, |
1211 | struct device_attribute *attr, | |
1212 | char *buf) | |
b76cdba9 MW |
1213 | { |
1214 | struct slave *curr; | |
43cb76d9 | 1215 | struct bonding *bond = to_bond(d); |
16cd0160 | 1216 | int count = 0; |
b76cdba9 | 1217 | |
b76cdba9 MW |
1218 | read_lock(&bond->curr_slave_lock); |
1219 | curr = bond->curr_active_slave; | |
1220 | read_unlock(&bond->curr_slave_lock); | |
1221 | ||
1222 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1223 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1224 | return count; |
1225 | } | |
1226 | ||
43cb76d9 GKH |
1227 | static ssize_t bonding_store_active_slave(struct device *d, |
1228 | struct device_attribute *attr, | |
1229 | const char *buf, size_t count) | |
b76cdba9 MW |
1230 | { |
1231 | int i; | |
1232 | struct slave *slave; | |
3d632c3f SH |
1233 | struct slave *old_active = NULL; |
1234 | struct slave *new_active = NULL; | |
43cb76d9 | 1235 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1236 | |
496a60cd EB |
1237 | if (!rtnl_trylock()) |
1238 | return restart_syscall(); | |
e843fa50 NH |
1239 | |
1240 | block_netpoll_tx(); | |
e934dd78 JV |
1241 | read_lock(&bond->lock); |
1242 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1243 | |
3d632c3f | 1244 | if (!USES_PRIMARY(bond->params.mode)) |
a4aee5c8 | 1245 | pr_info("%s: Unable to change active slave; %s is in mode %d\n", |
3d632c3f SH |
1246 | bond->dev->name, bond->dev->name, bond->params.mode); |
1247 | else { | |
b76cdba9 MW |
1248 | bond_for_each_slave(bond, slave, i) { |
1249 | if (strnicmp | |
1250 | (slave->dev->name, buf, | |
1251 | strlen(slave->dev->name)) == 0) { | |
1252 | old_active = bond->curr_active_slave; | |
1253 | new_active = slave; | |
a50d8de2 | 1254 | if (new_active == old_active) { |
b76cdba9 | 1255 | /* do nothing */ |
a4aee5c8 JP |
1256 | pr_info("%s: %s is already the current active slave.\n", |
1257 | bond->dev->name, | |
1258 | slave->dev->name); | |
b76cdba9 MW |
1259 | goto out; |
1260 | } | |
1261 | else { | |
1262 | if ((new_active) && | |
1263 | (old_active) && | |
1264 | (new_active->link == BOND_LINK_UP) && | |
1265 | IS_UP(new_active->dev)) { | |
a4aee5c8 JP |
1266 | pr_info("%s: Setting %s as active slave.\n", |
1267 | bond->dev->name, | |
1268 | slave->dev->name); | |
e5e2a8fd | 1269 | bond_change_active_slave(bond, new_active); |
b76cdba9 MW |
1270 | } |
1271 | else { | |
a4aee5c8 JP |
1272 | pr_info("%s: Could not set %s as active slave; either %s is down or the link is down.\n", |
1273 | bond->dev->name, | |
1274 | slave->dev->name, | |
e5e2a8fd | 1275 | slave->dev->name); |
b76cdba9 MW |
1276 | } |
1277 | goto out; | |
1278 | } | |
1279 | } | |
1280 | } | |
1281 | ||
1282 | /* if we got here, then we didn't match the name of any slave */ | |
1283 | ||
1284 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
a4aee5c8 | 1285 | pr_info("%s: Setting active slave to None.\n", |
3d632c3f | 1286 | bond->dev->name); |
3418db7c | 1287 | bond->primary_slave = NULL; |
3d632c3f | 1288 | bond_select_active_slave(bond); |
b76cdba9 | 1289 | } else { |
a4aee5c8 | 1290 | pr_info("%s: Unable to set %.*s as active slave as it is not a slave.\n", |
3d632c3f | 1291 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
1292 | } |
1293 | } | |
3d632c3f | 1294 | out: |
e934dd78 JV |
1295 | write_unlock_bh(&bond->curr_slave_lock); |
1296 | read_unlock(&bond->lock); | |
e843fa50 NH |
1297 | unblock_netpoll_tx(); |
1298 | ||
6603a6f2 JV |
1299 | rtnl_unlock(); |
1300 | ||
b76cdba9 MW |
1301 | return count; |
1302 | ||
1303 | } | |
3d632c3f SH |
1304 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1305 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1306 | |
1307 | ||
1308 | /* | |
1309 | * Show link status of the bond interface. | |
1310 | */ | |
43cb76d9 GKH |
1311 | static ssize_t bonding_show_mii_status(struct device *d, |
1312 | struct device_attribute *attr, | |
1313 | char *buf) | |
b76cdba9 MW |
1314 | { |
1315 | struct slave *curr; | |
43cb76d9 | 1316 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1317 | |
1318 | read_lock(&bond->curr_slave_lock); | |
1319 | curr = bond->curr_active_slave; | |
1320 | read_unlock(&bond->curr_slave_lock); | |
1321 | ||
3d632c3f | 1322 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1323 | } |
43cb76d9 | 1324 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 MW |
1325 | |
1326 | ||
1327 | /* | |
1328 | * Show current 802.3ad aggregator ID. | |
1329 | */ | |
43cb76d9 GKH |
1330 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1331 | struct device_attribute *attr, | |
1332 | char *buf) | |
b76cdba9 MW |
1333 | { |
1334 | int count = 0; | |
43cb76d9 | 1335 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1336 | |
1337 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1338 | struct ad_info ad_info; | |
3d632c3f SH |
1339 | count = sprintf(buf, "%d\n", |
1340 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1341 | ? 0 : ad_info.aggregator_id); | |
b76cdba9 | 1342 | } |
b76cdba9 MW |
1343 | |
1344 | return count; | |
1345 | } | |
43cb76d9 | 1346 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1347 | |
1348 | ||
1349 | /* | |
1350 | * Show number of active 802.3ad ports. | |
1351 | */ | |
43cb76d9 GKH |
1352 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1353 | struct device_attribute *attr, | |
1354 | char *buf) | |
b76cdba9 MW |
1355 | { |
1356 | int count = 0; | |
43cb76d9 | 1357 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1358 | |
1359 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1360 | struct ad_info ad_info; | |
3d632c3f SH |
1361 | count = sprintf(buf, "%d\n", |
1362 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1363 | ? 0 : ad_info.ports); | |
b76cdba9 | 1364 | } |
b76cdba9 MW |
1365 | |
1366 | return count; | |
1367 | } | |
43cb76d9 | 1368 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1369 | |
1370 | ||
1371 | /* | |
1372 | * Show current 802.3ad actor key. | |
1373 | */ | |
43cb76d9 GKH |
1374 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1375 | struct device_attribute *attr, | |
1376 | char *buf) | |
b76cdba9 MW |
1377 | { |
1378 | int count = 0; | |
43cb76d9 | 1379 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1380 | |
1381 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1382 | struct ad_info ad_info; | |
3d632c3f SH |
1383 | count = sprintf(buf, "%d\n", |
1384 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1385 | ? 0 : ad_info.actor_key); | |
b76cdba9 | 1386 | } |
b76cdba9 MW |
1387 | |
1388 | return count; | |
1389 | } | |
43cb76d9 | 1390 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1391 | |
1392 | ||
1393 | /* | |
1394 | * Show current 802.3ad partner key. | |
1395 | */ | |
43cb76d9 GKH |
1396 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1397 | struct device_attribute *attr, | |
1398 | char *buf) | |
b76cdba9 MW |
1399 | { |
1400 | int count = 0; | |
43cb76d9 | 1401 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1402 | |
1403 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1404 | struct ad_info ad_info; | |
3d632c3f SH |
1405 | count = sprintf(buf, "%d\n", |
1406 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1407 | ? 0 : ad_info.partner_key); | |
b76cdba9 | 1408 | } |
b76cdba9 MW |
1409 | |
1410 | return count; | |
1411 | } | |
43cb76d9 | 1412 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1413 | |
1414 | ||
1415 | /* | |
1416 | * Show current 802.3ad partner mac. | |
1417 | */ | |
43cb76d9 GKH |
1418 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1419 | struct device_attribute *attr, | |
1420 | char *buf) | |
b76cdba9 MW |
1421 | { |
1422 | int count = 0; | |
43cb76d9 | 1423 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1424 | |
1425 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1426 | struct ad_info ad_info; | |
3d632c3f | 1427 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1428 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1429 | } |
b76cdba9 MW |
1430 | |
1431 | return count; | |
1432 | } | |
43cb76d9 | 1433 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1434 | |
bb1d9123 AG |
1435 | /* |
1436 | * Show the queue_ids of the slaves in the current bond. | |
1437 | */ | |
1438 | static ssize_t bonding_show_queue_id(struct device *d, | |
1439 | struct device_attribute *attr, | |
1440 | char *buf) | |
1441 | { | |
1442 | struct slave *slave; | |
1443 | int i, res = 0; | |
1444 | struct bonding *bond = to_bond(d); | |
1445 | ||
1446 | if (!rtnl_trylock()) | |
1447 | return restart_syscall(); | |
1448 | ||
1449 | read_lock(&bond->lock); | |
1450 | bond_for_each_slave(bond, slave, i) { | |
79236680 NP |
1451 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1452 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1453 | if ((PAGE_SIZE - res) > 10) |
1454 | res = PAGE_SIZE - 10; | |
1455 | res += sprintf(buf + res, "++more++ "); | |
1456 | break; | |
1457 | } | |
1458 | res += sprintf(buf + res, "%s:%d ", | |
1459 | slave->dev->name, slave->queue_id); | |
1460 | } | |
1461 | read_unlock(&bond->lock); | |
1462 | if (res) | |
1463 | buf[res-1] = '\n'; /* eat the leftover space */ | |
1464 | rtnl_unlock(); | |
1465 | return res; | |
1466 | } | |
1467 | ||
1468 | /* | |
1469 | * Set the queue_ids of the slaves in the current bond. The bond | |
1470 | * interface must be enslaved for this to work. | |
1471 | */ | |
1472 | static ssize_t bonding_store_queue_id(struct device *d, | |
1473 | struct device_attribute *attr, | |
1474 | const char *buffer, size_t count) | |
1475 | { | |
1476 | struct slave *slave, *update_slave; | |
1477 | struct bonding *bond = to_bond(d); | |
1478 | u16 qid; | |
1479 | int i, ret = count; | |
1480 | char *delim; | |
1481 | struct net_device *sdev = NULL; | |
1482 | ||
1483 | if (!rtnl_trylock()) | |
1484 | return restart_syscall(); | |
1485 | ||
1486 | /* delim will point to queue id if successful */ | |
1487 | delim = strchr(buffer, ':'); | |
1488 | if (!delim) | |
1489 | goto err_no_cmd; | |
1490 | ||
1491 | /* | |
1492 | * Terminate string that points to device name and bump it | |
1493 | * up one, so we can read the queue id there. | |
1494 | */ | |
1495 | *delim = '\0'; | |
1496 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1497 | goto err_no_cmd; | |
1498 | ||
1499 | /* Check buffer length, valid ifname and queue id */ | |
1500 | if (strlen(buffer) > IFNAMSIZ || | |
1501 | !dev_valid_name(buffer) || | |
1502 | qid > bond->params.tx_queues) | |
1503 | goto err_no_cmd; | |
1504 | ||
1505 | /* Get the pointer to that interface if it exists */ | |
1506 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1507 | if (!sdev) | |
1508 | goto err_no_cmd; | |
1509 | ||
1510 | read_lock(&bond->lock); | |
1511 | ||
1512 | /* Search for thes slave and check for duplicate qids */ | |
1513 | update_slave = NULL; | |
1514 | bond_for_each_slave(bond, slave, i) { | |
1515 | if (sdev == slave->dev) | |
1516 | /* | |
1517 | * We don't need to check the matching | |
1518 | * slave for dups, since we're overwriting it | |
1519 | */ | |
1520 | update_slave = slave; | |
1521 | else if (qid && qid == slave->queue_id) { | |
1522 | goto err_no_cmd_unlock; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | if (!update_slave) | |
1527 | goto err_no_cmd_unlock; | |
1528 | ||
1529 | /* Actually set the qids for the slave */ | |
1530 | update_slave->queue_id = qid; | |
1531 | ||
1532 | read_unlock(&bond->lock); | |
1533 | out: | |
1534 | rtnl_unlock(); | |
1535 | return ret; | |
1536 | ||
1537 | err_no_cmd_unlock: | |
1538 | read_unlock(&bond->lock); | |
1539 | err_no_cmd: | |
1540 | pr_info("invalid input for queue_id set for %s.\n", | |
1541 | bond->dev->name); | |
1542 | ret = -EPERM; | |
1543 | goto out; | |
1544 | } | |
1545 | ||
1546 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1547 | bonding_store_queue_id); | |
1548 | ||
1549 | ||
ebd8e497 AG |
1550 | /* |
1551 | * Show and set the all_slaves_active flag. | |
1552 | */ | |
1553 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1554 | struct device_attribute *attr, | |
1555 | char *buf) | |
1556 | { | |
1557 | struct bonding *bond = to_bond(d); | |
1558 | ||
1559 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1560 | } | |
1561 | ||
1562 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1563 | struct device_attribute *attr, | |
1564 | const char *buf, size_t count) | |
1565 | { | |
1566 | int i, new_value, ret = count; | |
1567 | struct bonding *bond = to_bond(d); | |
1568 | struct slave *slave; | |
1569 | ||
1570 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1571 | pr_err("%s: no all_slaves_active value specified.\n", | |
1572 | bond->dev->name); | |
1573 | ret = -EINVAL; | |
1574 | goto out; | |
1575 | } | |
1576 | ||
1577 | if (new_value == bond->params.all_slaves_active) | |
1578 | goto out; | |
1579 | ||
1580 | if ((new_value == 0) || (new_value == 1)) { | |
1581 | bond->params.all_slaves_active = new_value; | |
1582 | } else { | |
1583 | pr_info("%s: Ignoring invalid all_slaves_active value %d.\n", | |
1584 | bond->dev->name, new_value); | |
1585 | ret = -EINVAL; | |
1586 | goto out; | |
1587 | } | |
b76cdba9 | 1588 | |
ebd8e497 AG |
1589 | bond_for_each_slave(bond, slave, i) { |
1590 | if (slave->state == BOND_STATE_BACKUP) { | |
1591 | if (new_value) | |
1592 | slave->dev->priv_flags &= ~IFF_SLAVE_INACTIVE; | |
1593 | else | |
1594 | slave->dev->priv_flags |= IFF_SLAVE_INACTIVE; | |
1595 | } | |
1596 | } | |
1597 | out: | |
1598 | return count; | |
1599 | } | |
1600 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1601 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1602 | |
c2952c31 FL |
1603 | /* |
1604 | * Show and set the number of IGMP membership reports to send on link failure | |
1605 | */ | |
1606 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
1607 | struct device_attribute *attr, | |
1608 | char *buf) | |
1609 | { | |
1610 | struct bonding *bond = to_bond(d); | |
1611 | ||
1612 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1613 | } | |
1614 | ||
1615 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
1616 | struct device_attribute *attr, | |
1617 | const char *buf, size_t count) | |
1618 | { | |
1619 | int new_value, ret = count; | |
1620 | struct bonding *bond = to_bond(d); | |
1621 | ||
1622 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1623 | pr_err("%s: no resend_igmp value specified.\n", | |
1624 | bond->dev->name); | |
1625 | ret = -EINVAL; | |
1626 | goto out; | |
1627 | } | |
1628 | ||
1629 | if (new_value < 0) { | |
1630 | pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", | |
1631 | bond->dev->name, new_value); | |
1632 | ret = -EINVAL; | |
1633 | goto out; | |
1634 | } | |
1635 | ||
1636 | pr_info("%s: Setting resend_igmp to %d.\n", | |
1637 | bond->dev->name, new_value); | |
1638 | bond->params.resend_igmp = new_value; | |
1639 | out: | |
1640 | return ret; | |
1641 | } | |
1642 | ||
1643 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1644 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1645 | ||
b76cdba9 | 1646 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1647 | &dev_attr_slaves.attr, |
1648 | &dev_attr_mode.attr, | |
dd957c57 | 1649 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1650 | &dev_attr_arp_validate.attr, |
1651 | &dev_attr_arp_interval.attr, | |
1652 | &dev_attr_arp_ip_target.attr, | |
1653 | &dev_attr_downdelay.attr, | |
1654 | &dev_attr_updelay.attr, | |
1655 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1656 | &dev_attr_ad_select.attr, |
43cb76d9 | 1657 | &dev_attr_xmit_hash_policy.attr, |
7893b249 | 1658 | &dev_attr_num_grat_arp.attr, |
305d552a | 1659 | &dev_attr_num_unsol_na.attr, |
43cb76d9 GKH |
1660 | &dev_attr_miimon.attr, |
1661 | &dev_attr_primary.attr, | |
a549952a | 1662 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1663 | &dev_attr_use_carrier.attr, |
1664 | &dev_attr_active_slave.attr, | |
1665 | &dev_attr_mii_status.attr, | |
1666 | &dev_attr_ad_aggregator.attr, | |
1667 | &dev_attr_ad_num_ports.attr, | |
1668 | &dev_attr_ad_actor_key.attr, | |
1669 | &dev_attr_ad_partner_key.attr, | |
1670 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1671 | &dev_attr_queue_id.attr, |
ebd8e497 | 1672 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1673 | &dev_attr_resend_igmp.attr, |
b76cdba9 MW |
1674 | NULL, |
1675 | }; | |
1676 | ||
1677 | static struct attribute_group bonding_group = { | |
1678 | .name = "bonding", | |
1679 | .attrs = per_bond_attrs, | |
1680 | }; | |
1681 | ||
1682 | /* | |
1683 | * Initialize sysfs. This sets up the bonding_masters file in | |
1684 | * /sys/class/net. | |
1685 | */ | |
1686 | int bond_create_sysfs(void) | |
1687 | { | |
b8a9787e | 1688 | int ret; |
b76cdba9 | 1689 | |
b8a9787e | 1690 | ret = netdev_class_create_file(&class_attr_bonding_masters); |
877cbd36 JV |
1691 | /* |
1692 | * Permit multiple loads of the module by ignoring failures to | |
1693 | * create the bonding_masters sysfs file. Bonding devices | |
1694 | * created by second or subsequent loads of the module will | |
1695 | * not be listed in, or controllable by, bonding_masters, but | |
1696 | * will have the usual "bonding" sysfs directory. | |
1697 | * | |
1698 | * This is done to preserve backwards compatibility for | |
1699 | * initscripts/sysconfig, which load bonding multiple times to | |
1700 | * configure multiple bonding devices. | |
1701 | */ | |
1702 | if (ret == -EEXIST) { | |
38d2f38b SH |
1703 | /* Is someone being kinky and naming a device bonding_master? */ |
1704 | if (__dev_get_by_name(&init_net, | |
1705 | class_attr_bonding_masters.attr.name)) | |
a4aee5c8 | 1706 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1707 | class_attr_bonding_masters.attr.name); |
130aa61a | 1708 | ret = 0; |
877cbd36 | 1709 | } |
b76cdba9 MW |
1710 | |
1711 | return ret; | |
1712 | ||
1713 | } | |
1714 | ||
1715 | /* | |
1716 | * Remove /sys/class/net/bonding_masters. | |
1717 | */ | |
1718 | void bond_destroy_sysfs(void) | |
1719 | { | |
b8a9787e | 1720 | netdev_class_remove_file(&class_attr_bonding_masters); |
b76cdba9 MW |
1721 | } |
1722 | ||
1723 | /* | |
1724 | * Initialize sysfs for each bond. This sets up and registers | |
1725 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1726 | */ | |
6151b3d4 | 1727 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1728 | { |
6151b3d4 | 1729 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1730 | } |
1731 |