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 | */ |
b76cdba9 MW |
22 | #include <linux/kernel.h> |
23 | #include <linux/module.h> | |
b76cdba9 MW |
24 | #include <linux/device.h> |
25 | #include <linux/sysdev.h> | |
26 | #include <linux/fs.h> | |
27 | #include <linux/types.h> | |
28 | #include <linux/string.h> | |
29 | #include <linux/netdevice.h> | |
30 | #include <linux/inetdevice.h> | |
31 | #include <linux/in.h> | |
32 | #include <linux/sysfs.h> | |
b76cdba9 MW |
33 | #include <linux/ctype.h> |
34 | #include <linux/inet.h> | |
35 | #include <linux/rtnetlink.h> | |
881d966b | 36 | #include <net/net_namespace.h> |
b76cdba9 | 37 | |
b76cdba9 | 38 | #include "bonding.h" |
5a03cdb7 | 39 | |
3d632c3f | 40 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 41 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 42 | |
b76cdba9 MW |
43 | /* |
44 | * "show" function for the bond_masters attribute. | |
45 | * The class parameter is ignored. | |
46 | */ | |
b8843665 | 47 | static ssize_t bonding_show_bonds(struct class *cls, char *buf) |
b76cdba9 MW |
48 | { |
49 | int res = 0; | |
50 | struct bonding *bond; | |
51 | ||
7e083840 | 52 | rtnl_lock(); |
b76cdba9 MW |
53 | |
54 | list_for_each_entry(bond, &bond_dev_list, bond_list) { | |
55 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
56 | /* not enough space for another interface name */ | |
57 | if ((PAGE_SIZE - res) > 10) | |
58 | res = PAGE_SIZE - 10; | |
b8843665 | 59 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
60 | break; |
61 | } | |
b8843665 | 62 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 63 | } |
1dcdcd69 WF |
64 | if (res) |
65 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
66 | |
67 | rtnl_unlock(); | |
b76cdba9 MW |
68 | return res; |
69 | } | |
70 | ||
71 | /* | |
72 | * "store" function for the bond_masters attribute. This is what | |
73 | * creates and deletes entire bonds. | |
74 | * | |
75 | * The class parameter is ignored. | |
76 | * | |
77 | */ | |
78 | ||
3d632c3f SH |
79 | static ssize_t bonding_store_bonds(struct class *cls, |
80 | const char *buffer, size_t count) | |
b76cdba9 MW |
81 | { |
82 | char command[IFNAMSIZ + 1] = {0, }; | |
83 | char *ifname; | |
027ea041 | 84 | int rv, res = count; |
b76cdba9 | 85 | struct bonding *bond; |
b76cdba9 | 86 | |
b76cdba9 MW |
87 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
88 | ifname = command + 1; | |
89 | if ((strlen(command) <= 1) || | |
90 | !dev_valid_name(ifname)) | |
91 | goto err_no_cmd; | |
92 | ||
93 | if (command[0] == '+') { | |
3d632c3f | 94 | pr_info(DRV_NAME |
b76cdba9 | 95 | ": %s is being created...\n", ifname); |
d2991f75 | 96 | rv = bond_create(ifname); |
027ea041 | 97 | if (rv) { |
3d632c3f | 98 | pr_info(DRV_NAME ": Bond creation failed.\n"); |
027ea041 | 99 | res = rv; |
b76cdba9 MW |
100 | } |
101 | goto out; | |
102 | } | |
103 | ||
104 | if (command[0] == '-') { | |
027ea041 | 105 | rtnl_lock(); |
027ea041 | 106 | |
0883beca | 107 | list_for_each_entry(bond, &bond_dev_list, bond_list) |
b76cdba9 | 108 | if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) { |
3d632c3f | 109 | pr_info(DRV_NAME |
b76cdba9 MW |
110 | ": %s is being deleted...\n", |
111 | bond->dev->name); | |
9e71626c | 112 | unregister_netdevice(bond->dev); |
c4ebc66a | 113 | goto out_unlock; |
b76cdba9 MW |
114 | } |
115 | ||
3d632c3f | 116 | pr_err(DRV_NAME |
b76cdba9 MW |
117 | ": unable to delete non-existent bond %s\n", ifname); |
118 | res = -ENODEV; | |
c4ebc66a | 119 | goto out_unlock; |
b76cdba9 MW |
120 | } |
121 | ||
122 | err_no_cmd: | |
3d632c3f SH |
123 | pr_err(DRV_NAME ": no command found in bonding_masters." |
124 | " Use +ifname or -ifname.\n"); | |
c4ebc66a JV |
125 | return -EPERM; |
126 | ||
127 | out_unlock: | |
c4ebc66a | 128 | rtnl_unlock(); |
b76cdba9 MW |
129 | |
130 | /* Always return either count or an error. If you return 0, you'll | |
131 | * get called forever, which is bad. | |
132 | */ | |
133 | out: | |
b76cdba9 MW |
134 | return res; |
135 | } | |
136 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ | |
137 | static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO, | |
138 | bonding_show_bonds, bonding_store_bonds); | |
139 | ||
3d632c3f SH |
140 | int bond_create_slave_symlinks(struct net_device *master, |
141 | struct net_device *slave) | |
b76cdba9 MW |
142 | { |
143 | char linkname[IFNAMSIZ+7]; | |
144 | int ret = 0; | |
145 | ||
146 | /* first, create a link from the slave back to the master */ | |
43cb76d9 | 147 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
b76cdba9 MW |
148 | "master"); |
149 | if (ret) | |
150 | return ret; | |
151 | /* next, create a link from the master to the slave */ | |
3d632c3f | 152 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 153 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
b76cdba9 MW |
154 | linkname); |
155 | return ret; | |
156 | ||
157 | } | |
158 | ||
3d632c3f SH |
159 | void bond_destroy_slave_symlinks(struct net_device *master, |
160 | struct net_device *slave) | |
b76cdba9 MW |
161 | { |
162 | char linkname[IFNAMSIZ+7]; | |
163 | ||
43cb76d9 | 164 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
3d632c3f | 165 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 166 | sysfs_remove_link(&(master->dev.kobj), linkname); |
b76cdba9 MW |
167 | } |
168 | ||
169 | ||
170 | /* | |
171 | * Show the slaves in the current bond. | |
172 | */ | |
43cb76d9 GKH |
173 | static ssize_t bonding_show_slaves(struct device *d, |
174 | struct device_attribute *attr, char *buf) | |
b76cdba9 MW |
175 | { |
176 | struct slave *slave; | |
177 | int i, res = 0; | |
43cb76d9 | 178 | struct bonding *bond = to_bond(d); |
b76cdba9 | 179 | |
6603a6f2 | 180 | read_lock(&bond->lock); |
b76cdba9 MW |
181 | bond_for_each_slave(bond, slave, i) { |
182 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
183 | /* not enough space for another interface name */ | |
184 | if ((PAGE_SIZE - res) > 10) | |
185 | res = PAGE_SIZE - 10; | |
7bd46508 | 186 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
187 | break; |
188 | } | |
189 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
190 | } | |
6603a6f2 | 191 | read_unlock(&bond->lock); |
1dcdcd69 WF |
192 | if (res) |
193 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
194 | return res; |
195 | } | |
196 | ||
197 | /* | |
198 | * Set the slaves in the current bond. The bond interface must be | |
199 | * up for this to succeed. | |
200 | * This function is largely the same flow as bonding_update_bonds(). | |
201 | */ | |
43cb76d9 GKH |
202 | static ssize_t bonding_store_slaves(struct device *d, |
203 | struct device_attribute *attr, | |
204 | const char *buffer, size_t count) | |
b76cdba9 MW |
205 | { |
206 | char command[IFNAMSIZ + 1] = { 0, }; | |
207 | char *ifname; | |
208 | int i, res, found, ret = count; | |
3158bf7d | 209 | u32 original_mtu; |
b76cdba9 | 210 | struct slave *slave; |
3418db7c | 211 | struct net_device *dev = NULL; |
43cb76d9 | 212 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
213 | |
214 | /* Quick sanity check -- is the bond interface up? */ | |
215 | if (!(bond->dev->flags & IFF_UP)) { | |
6b1bf096 MS |
216 | printk(KERN_WARNING DRV_NAME |
217 | ": %s: doing slave updates when interface is down.\n", | |
b76cdba9 | 218 | bond->dev->name); |
b76cdba9 MW |
219 | } |
220 | ||
221 | /* Note: We can't hold bond->lock here, as bond_create grabs it. */ | |
222 | ||
496a60cd EB |
223 | if (!rtnl_trylock()) |
224 | return restart_syscall(); | |
027ea041 | 225 | |
b76cdba9 MW |
226 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
227 | ifname = command + 1; | |
228 | if ((strlen(command) <= 1) || | |
229 | !dev_valid_name(ifname)) | |
230 | goto err_no_cmd; | |
231 | ||
232 | if (command[0] == '+') { | |
233 | ||
234 | /* Got a slave name in ifname. Is it already in the list? */ | |
235 | found = 0; | |
6603a6f2 | 236 | read_lock(&bond->lock); |
b76cdba9 MW |
237 | bond_for_each_slave(bond, slave, i) |
238 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
3d632c3f | 239 | pr_err(DRV_NAME |
b76cdba9 MW |
240 | ": %s: Interface %s is already enslaved!\n", |
241 | bond->dev->name, ifname); | |
242 | ret = -EPERM; | |
6603a6f2 | 243 | read_unlock(&bond->lock); |
b76cdba9 MW |
244 | goto out; |
245 | } | |
246 | ||
6603a6f2 | 247 | read_unlock(&bond->lock); |
3d632c3f | 248 | pr_info(DRV_NAME ": %s: Adding slave %s.\n", |
b76cdba9 | 249 | bond->dev->name, ifname); |
881d966b | 250 | dev = dev_get_by_name(&init_net, ifname); |
b76cdba9 | 251 | if (!dev) { |
3d632c3f | 252 | pr_info(DRV_NAME |
b76cdba9 MW |
253 | ": %s: Interface %s does not exist!\n", |
254 | bond->dev->name, ifname); | |
255 | ret = -EPERM; | |
256 | goto out; | |
3d632c3f | 257 | } else |
b76cdba9 MW |
258 | dev_put(dev); |
259 | ||
260 | if (dev->flags & IFF_UP) { | |
3d632c3f | 261 | pr_err(DRV_NAME |
b76cdba9 MW |
262 | ": %s: Error: Unable to enslave %s " |
263 | "because it is already up.\n", | |
264 | bond->dev->name, dev->name); | |
265 | ret = -EPERM; | |
266 | goto out; | |
267 | } | |
268 | /* If this is the first slave, then we need to set | |
269 | the master's hardware address to be the same as the | |
270 | slave's. */ | |
271 | if (!(*((u32 *) & (bond->dev->dev_addr[0])))) { | |
272 | memcpy(bond->dev->dev_addr, dev->dev_addr, | |
273 | dev->addr_len); | |
274 | } | |
275 | ||
276 | /* Set the slave's MTU to match the bond */ | |
3158bf7d | 277 | original_mtu = dev->mtu; |
eb7cc59a SH |
278 | res = dev_set_mtu(dev, bond->dev->mtu); |
279 | if (res) { | |
280 | ret = res; | |
281 | goto out; | |
b76cdba9 | 282 | } |
eb7cc59a | 283 | |
b76cdba9 | 284 | res = bond_enslave(bond->dev, dev); |
3158bf7d MS |
285 | bond_for_each_slave(bond, slave, i) |
286 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) | |
287 | slave->original_mtu = original_mtu; | |
3d632c3f | 288 | if (res) |
b76cdba9 | 289 | ret = res; |
3d632c3f | 290 | |
b76cdba9 MW |
291 | goto out; |
292 | } | |
293 | ||
294 | if (command[0] == '-') { | |
295 | dev = NULL; | |
6952d892 | 296 | original_mtu = 0; |
b76cdba9 MW |
297 | bond_for_each_slave(bond, slave, i) |
298 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
299 | dev = slave->dev; | |
3158bf7d | 300 | original_mtu = slave->original_mtu; |
b76cdba9 MW |
301 | break; |
302 | } | |
303 | if (dev) { | |
3d632c3f | 304 | pr_info(DRV_NAME ": %s: Removing slave %s\n", |
b76cdba9 | 305 | bond->dev->name, dev->name); |
d90a162a | 306 | res = bond_release(bond->dev, dev); |
b76cdba9 MW |
307 | if (res) { |
308 | ret = res; | |
309 | goto out; | |
310 | } | |
311 | /* set the slave MTU to the default */ | |
eb7cc59a | 312 | dev_set_mtu(dev, original_mtu); |
3d632c3f SH |
313 | } else { |
314 | pr_err(DRV_NAME ": unable to remove non-existent" | |
315 | " slave %s for bond %s.\n", | |
b76cdba9 MW |
316 | ifname, bond->dev->name); |
317 | ret = -ENODEV; | |
318 | } | |
319 | goto out; | |
320 | } | |
321 | ||
322 | err_no_cmd: | |
3d632c3f | 323 | pr_err(DRV_NAME ": no command found in slaves file for bond %s. Use +ifname or -ifname.\n", bond->dev->name); |
b76cdba9 MW |
324 | ret = -EPERM; |
325 | ||
326 | out: | |
027ea041 | 327 | rtnl_unlock(); |
b76cdba9 MW |
328 | return ret; |
329 | } | |
330 | ||
3d632c3f SH |
331 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
332 | bonding_store_slaves); | |
b76cdba9 MW |
333 | |
334 | /* | |
335 | * Show and set the bonding mode. The bond interface must be down to | |
336 | * change the mode. | |
337 | */ | |
43cb76d9 GKH |
338 | static ssize_t bonding_show_mode(struct device *d, |
339 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 340 | { |
43cb76d9 | 341 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
342 | |
343 | return sprintf(buf, "%s %d\n", | |
344 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 345 | bond->params.mode); |
b76cdba9 MW |
346 | } |
347 | ||
43cb76d9 GKH |
348 | static ssize_t bonding_store_mode(struct device *d, |
349 | struct device_attribute *attr, | |
350 | const char *buf, size_t count) | |
b76cdba9 MW |
351 | { |
352 | int new_value, ret = count; | |
43cb76d9 | 353 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
354 | |
355 | if (bond->dev->flags & IFF_UP) { | |
3d632c3f SH |
356 | pr_err(DRV_NAME ": unable to update mode of %s" |
357 | " because interface is up.\n", bond->dev->name); | |
b76cdba9 MW |
358 | ret = -EPERM; |
359 | goto out; | |
360 | } | |
361 | ||
ece95f7f | 362 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 363 | if (new_value < 0) { |
3d632c3f | 364 | pr_err(DRV_NAME |
b76cdba9 MW |
365 | ": %s: Ignoring invalid mode value %.*s.\n", |
366 | bond->dev->name, | |
367 | (int)strlen(buf) - 1, buf); | |
368 | ret = -EINVAL; | |
369 | goto out; | |
370 | } else { | |
8f903c70 JV |
371 | if (bond->params.mode == BOND_MODE_8023AD) |
372 | bond_unset_master_3ad_flags(bond); | |
373 | ||
374 | if (bond->params.mode == BOND_MODE_ALB) | |
375 | bond_unset_master_alb_flags(bond); | |
376 | ||
b76cdba9 MW |
377 | bond->params.mode = new_value; |
378 | bond_set_mode_ops(bond, bond->params.mode); | |
3d632c3f SH |
379 | pr_info(DRV_NAME ": %s: setting mode to %s (%d).\n", |
380 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
381 | new_value); | |
b76cdba9 MW |
382 | } |
383 | out: | |
384 | return ret; | |
385 | } | |
3d632c3f SH |
386 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
387 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
388 | |
389 | /* | |
3d632c3f SH |
390 | * Show and set the bonding transmit hash method. |
391 | * The bond interface must be down to change the xmit hash policy. | |
b76cdba9 | 392 | */ |
43cb76d9 GKH |
393 | static ssize_t bonding_show_xmit_hash(struct device *d, |
394 | struct device_attribute *attr, | |
395 | char *buf) | |
b76cdba9 | 396 | { |
43cb76d9 | 397 | struct bonding *bond = to_bond(d); |
b76cdba9 | 398 | |
8e4b9329 WF |
399 | return sprintf(buf, "%s %d\n", |
400 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
401 | bond->params.xmit_policy); | |
b76cdba9 MW |
402 | } |
403 | ||
43cb76d9 GKH |
404 | static ssize_t bonding_store_xmit_hash(struct device *d, |
405 | struct device_attribute *attr, | |
406 | const char *buf, size_t count) | |
b76cdba9 MW |
407 | { |
408 | int new_value, ret = count; | |
43cb76d9 | 409 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
410 | |
411 | if (bond->dev->flags & IFF_UP) { | |
3d632c3f | 412 | pr_err(DRV_NAME |
b76cdba9 MW |
413 | "%s: Interface is up. Unable to update xmit policy.\n", |
414 | bond->dev->name); | |
415 | ret = -EPERM; | |
416 | goto out; | |
417 | } | |
418 | ||
ece95f7f | 419 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 420 | if (new_value < 0) { |
3d632c3f | 421 | pr_err(DRV_NAME |
b76cdba9 MW |
422 | ": %s: Ignoring invalid xmit hash policy value %.*s.\n", |
423 | bond->dev->name, | |
424 | (int)strlen(buf) - 1, buf); | |
425 | ret = -EINVAL; | |
426 | goto out; | |
427 | } else { | |
428 | bond->params.xmit_policy = new_value; | |
429 | bond_set_mode_ops(bond, bond->params.mode); | |
3d632c3f SH |
430 | pr_info(DRV_NAME ": %s: setting xmit hash policy to %s (%d).\n", |
431 | bond->dev->name, | |
432 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 MW |
433 | } |
434 | out: | |
435 | return ret; | |
436 | } | |
3d632c3f SH |
437 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
438 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 439 | |
f5b2b966 JV |
440 | /* |
441 | * Show and set arp_validate. | |
442 | */ | |
43cb76d9 GKH |
443 | static ssize_t bonding_show_arp_validate(struct device *d, |
444 | struct device_attribute *attr, | |
445 | char *buf) | |
f5b2b966 | 446 | { |
43cb76d9 | 447 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
448 | |
449 | return sprintf(buf, "%s %d\n", | |
450 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 451 | bond->params.arp_validate); |
f5b2b966 JV |
452 | } |
453 | ||
43cb76d9 GKH |
454 | static ssize_t bonding_store_arp_validate(struct device *d, |
455 | struct device_attribute *attr, | |
456 | const char *buf, size_t count) | |
f5b2b966 JV |
457 | { |
458 | int new_value; | |
43cb76d9 | 459 | struct bonding *bond = to_bond(d); |
f5b2b966 | 460 | |
ece95f7f | 461 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 462 | if (new_value < 0) { |
3d632c3f | 463 | pr_err(DRV_NAME |
f5b2b966 JV |
464 | ": %s: Ignoring invalid arp_validate value %s\n", |
465 | bond->dev->name, buf); | |
466 | return -EINVAL; | |
467 | } | |
468 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
3d632c3f | 469 | pr_err(DRV_NAME |
f5b2b966 JV |
470 | ": %s: arp_validate only supported in active-backup mode.\n", |
471 | bond->dev->name); | |
472 | return -EINVAL; | |
473 | } | |
3d632c3f | 474 | pr_info(DRV_NAME ": %s: setting arp_validate to %s (%d).\n", |
f5b2b966 JV |
475 | bond->dev->name, arp_validate_tbl[new_value].modename, |
476 | new_value); | |
477 | ||
3d632c3f | 478 | if (!bond->params.arp_validate && new_value) |
f5b2b966 | 479 | bond_register_arp(bond); |
3d632c3f | 480 | else if (bond->params.arp_validate && !new_value) |
f5b2b966 | 481 | bond_unregister_arp(bond); |
f5b2b966 JV |
482 | |
483 | bond->params.arp_validate = new_value; | |
484 | ||
485 | return count; | |
486 | } | |
487 | ||
3d632c3f SH |
488 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
489 | bonding_store_arp_validate); | |
f5b2b966 | 490 | |
dd957c57 JV |
491 | /* |
492 | * Show and store fail_over_mac. User only allowed to change the | |
493 | * value when there are no slaves. | |
494 | */ | |
3d632c3f SH |
495 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
496 | struct device_attribute *attr, | |
497 | char *buf) | |
dd957c57 JV |
498 | { |
499 | struct bonding *bond = to_bond(d); | |
500 | ||
3915c1e8 JV |
501 | return sprintf(buf, "%s %d\n", |
502 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
503 | bond->params.fail_over_mac); | |
dd957c57 JV |
504 | } |
505 | ||
3d632c3f SH |
506 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
507 | struct device_attribute *attr, | |
508 | const char *buf, size_t count) | |
dd957c57 JV |
509 | { |
510 | int new_value; | |
dd957c57 JV |
511 | struct bonding *bond = to_bond(d); |
512 | ||
513 | if (bond->slave_cnt != 0) { | |
3d632c3f | 514 | pr_err(DRV_NAME |
dd957c57 JV |
515 | ": %s: Can't alter fail_over_mac with slaves in bond.\n", |
516 | bond->dev->name); | |
3915c1e8 | 517 | return -EPERM; |
dd957c57 JV |
518 | } |
519 | ||
3915c1e8 JV |
520 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
521 | if (new_value < 0) { | |
3d632c3f | 522 | pr_err(DRV_NAME |
3915c1e8 JV |
523 | ": %s: Ignoring invalid fail_over_mac value %s.\n", |
524 | bond->dev->name, buf); | |
525 | return -EINVAL; | |
dd957c57 JV |
526 | } |
527 | ||
3915c1e8 | 528 | bond->params.fail_over_mac = new_value; |
3d632c3f | 529 | pr_info(DRV_NAME ": %s: Setting fail_over_mac to %s (%d).\n", |
3915c1e8 JV |
530 | bond->dev->name, fail_over_mac_tbl[new_value].modename, |
531 | new_value); | |
532 | ||
533 | return count; | |
dd957c57 JV |
534 | } |
535 | ||
3d632c3f SH |
536 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
537 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 538 | |
b76cdba9 MW |
539 | /* |
540 | * Show and set the arp timer interval. There are two tricky bits | |
541 | * here. First, if ARP monitoring is activated, then we must disable | |
542 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
543 | * start it. | |
544 | */ | |
43cb76d9 GKH |
545 | static ssize_t bonding_show_arp_interval(struct device *d, |
546 | struct device_attribute *attr, | |
547 | char *buf) | |
b76cdba9 | 548 | { |
43cb76d9 | 549 | struct bonding *bond = to_bond(d); |
b76cdba9 | 550 | |
7bd46508 | 551 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
552 | } |
553 | ||
43cb76d9 GKH |
554 | static ssize_t bonding_store_arp_interval(struct device *d, |
555 | struct device_attribute *attr, | |
556 | const char *buf, size_t count) | |
b76cdba9 MW |
557 | { |
558 | int new_value, ret = count; | |
43cb76d9 | 559 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
560 | |
561 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 562 | pr_err(DRV_NAME |
b76cdba9 MW |
563 | ": %s: no arp_interval value specified.\n", |
564 | bond->dev->name); | |
565 | ret = -EINVAL; | |
566 | goto out; | |
567 | } | |
568 | if (new_value < 0) { | |
3d632c3f | 569 | pr_err(DRV_NAME |
b76cdba9 MW |
570 | ": %s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", |
571 | bond->dev->name, new_value, INT_MAX); | |
572 | ret = -EINVAL; | |
573 | goto out; | |
574 | } | |
575 | ||
3d632c3f | 576 | pr_info(DRV_NAME |
b76cdba9 MW |
577 | ": %s: Setting ARP monitoring interval to %d.\n", |
578 | bond->dev->name, new_value); | |
579 | bond->params.arp_interval = new_value; | |
6cf3f41e JV |
580 | if (bond->params.arp_interval) |
581 | bond->dev->priv_flags |= IFF_MASTER_ARPMON; | |
b76cdba9 | 582 | if (bond->params.miimon) { |
3d632c3f | 583 | pr_info(DRV_NAME |
b76cdba9 MW |
584 | ": %s: ARP monitoring cannot be used with MII monitoring. " |
585 | "%s Disabling MII monitoring.\n", | |
586 | bond->dev->name, bond->dev->name); | |
587 | bond->params.miimon = 0; | |
1b76b316 JV |
588 | if (delayed_work_pending(&bond->mii_work)) { |
589 | cancel_delayed_work(&bond->mii_work); | |
590 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
591 | } |
592 | } | |
593 | if (!bond->params.arp_targets[0]) { | |
3d632c3f | 594 | pr_info(DRV_NAME |
b76cdba9 MW |
595 | ": %s: ARP monitoring has been set up, " |
596 | "but no ARP targets have been specified.\n", | |
597 | bond->dev->name); | |
598 | } | |
599 | if (bond->dev->flags & IFF_UP) { | |
600 | /* If the interface is up, we may need to fire off | |
601 | * the ARP timer. If the interface is down, the | |
602 | * timer will get fired off when the open function | |
603 | * is called. | |
604 | */ | |
1b76b316 JV |
605 | if (!delayed_work_pending(&bond->arp_work)) { |
606 | if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) | |
607 | INIT_DELAYED_WORK(&bond->arp_work, | |
608 | bond_activebackup_arp_mon); | |
609 | else | |
610 | INIT_DELAYED_WORK(&bond->arp_work, | |
611 | bond_loadbalance_arp_mon); | |
612 | ||
613 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
b76cdba9 MW |
614 | } |
615 | } | |
616 | ||
617 | out: | |
618 | return ret; | |
619 | } | |
3d632c3f SH |
620 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
621 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
622 | |
623 | /* | |
624 | * Show and set the arp targets. | |
625 | */ | |
43cb76d9 GKH |
626 | static ssize_t bonding_show_arp_targets(struct device *d, |
627 | struct device_attribute *attr, | |
628 | char *buf) | |
b76cdba9 MW |
629 | { |
630 | int i, res = 0; | |
43cb76d9 | 631 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
632 | |
633 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
634 | if (bond->params.arp_targets[i]) | |
63779436 HH |
635 | res += sprintf(buf + res, "%pI4 ", |
636 | &bond->params.arp_targets[i]); | |
b76cdba9 | 637 | } |
1dcdcd69 WF |
638 | if (res) |
639 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
640 | return res; |
641 | } | |
642 | ||
43cb76d9 GKH |
643 | static ssize_t bonding_store_arp_targets(struct device *d, |
644 | struct device_attribute *attr, | |
645 | const char *buf, size_t count) | |
b76cdba9 | 646 | { |
d3bb52b0 | 647 | __be32 newtarget; |
b76cdba9 | 648 | int i = 0, done = 0, ret = count; |
43cb76d9 | 649 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 650 | __be32 *targets; |
b76cdba9 MW |
651 | |
652 | targets = bond->params.arp_targets; | |
653 | newtarget = in_aton(buf + 1); | |
654 | /* look for adds */ | |
655 | if (buf[0] == '+') { | |
d3bb52b0 | 656 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
3d632c3f | 657 | pr_err(DRV_NAME |
63779436 HH |
658 | ": %s: invalid ARP target %pI4 specified for addition\n", |
659 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
660 | ret = -EINVAL; |
661 | goto out; | |
662 | } | |
663 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 664 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 665 | if (targets[i] == newtarget) { /* duplicate */ |
3d632c3f | 666 | pr_err(DRV_NAME |
63779436 HH |
667 | ": %s: ARP target %pI4 is already present\n", |
668 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
669 | ret = -EINVAL; |
670 | goto out; | |
671 | } | |
5a31bec0 | 672 | if (targets[i] == 0) { |
3d632c3f | 673 | pr_info(DRV_NAME |
63779436 HH |
674 | ": %s: adding ARP target %pI4.\n", |
675 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
676 | done = 1; |
677 | targets[i] = newtarget; | |
678 | } | |
679 | } | |
680 | if (!done) { | |
3d632c3f | 681 | pr_err(DRV_NAME |
b76cdba9 MW |
682 | ": %s: ARP target table is full!\n", |
683 | bond->dev->name); | |
684 | ret = -EINVAL; | |
685 | goto out; | |
686 | } | |
687 | ||
3d632c3f | 688 | } else if (buf[0] == '-') { |
d3bb52b0 | 689 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
3d632c3f | 690 | pr_err(DRV_NAME |
63779436 HH |
691 | ": %s: invalid ARP target %pI4 specified for removal\n", |
692 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
693 | ret = -EINVAL; |
694 | goto out; | |
695 | } | |
696 | ||
5a31bec0 | 697 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 698 | if (targets[i] == newtarget) { |
5a31bec0 | 699 | int j; |
3d632c3f | 700 | pr_info(DRV_NAME |
63779436 HH |
701 | ": %s: removing ARP target %pI4.\n", |
702 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
703 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
704 | targets[j] = targets[j+1]; | |
705 | ||
706 | targets[j] = 0; | |
b76cdba9 MW |
707 | done = 1; |
708 | } | |
709 | } | |
710 | if (!done) { | |
3d632c3f | 711 | pr_info(DRV_NAME |
63779436 HH |
712 | ": %s: unable to remove nonexistent ARP target %pI4.\n", |
713 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
714 | ret = -EINVAL; |
715 | goto out; | |
716 | } | |
3d632c3f SH |
717 | } else { |
718 | pr_err(DRV_NAME ": no command found in arp_ip_targets file" | |
719 | " for bond %s. Use +<addr> or -<addr>.\n", | |
b76cdba9 MW |
720 | bond->dev->name); |
721 | ret = -EPERM; | |
722 | goto out; | |
723 | } | |
724 | ||
725 | out: | |
726 | return ret; | |
727 | } | |
43cb76d9 | 728 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
729 | |
730 | /* | |
731 | * Show and set the up and down delays. These must be multiples of the | |
732 | * MII monitoring value, and are stored internally as the multiplier. | |
733 | * Thus, we must translate to MS for the real world. | |
734 | */ | |
43cb76d9 GKH |
735 | static ssize_t bonding_show_downdelay(struct device *d, |
736 | struct device_attribute *attr, | |
737 | char *buf) | |
b76cdba9 | 738 | { |
43cb76d9 | 739 | struct bonding *bond = to_bond(d); |
b76cdba9 | 740 | |
7bd46508 | 741 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
742 | } |
743 | ||
43cb76d9 GKH |
744 | static ssize_t bonding_store_downdelay(struct device *d, |
745 | struct device_attribute *attr, | |
746 | const char *buf, size_t count) | |
b76cdba9 MW |
747 | { |
748 | int new_value, ret = count; | |
43cb76d9 | 749 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
750 | |
751 | if (!(bond->params.miimon)) { | |
3d632c3f | 752 | pr_err(DRV_NAME |
b76cdba9 MW |
753 | ": %s: Unable to set down delay as MII monitoring is disabled\n", |
754 | bond->dev->name); | |
755 | ret = -EPERM; | |
756 | goto out; | |
757 | } | |
758 | ||
759 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 760 | pr_err(DRV_NAME |
b76cdba9 MW |
761 | ": %s: no down delay value specified.\n", |
762 | bond->dev->name); | |
763 | ret = -EINVAL; | |
764 | goto out; | |
765 | } | |
766 | if (new_value < 0) { | |
3d632c3f | 767 | pr_err(DRV_NAME |
b76cdba9 MW |
768 | ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
769 | bond->dev->name, new_value, 1, INT_MAX); | |
770 | ret = -EINVAL; | |
771 | goto out; | |
772 | } else { | |
773 | if ((new_value % bond->params.miimon) != 0) { | |
774 | printk(KERN_WARNING DRV_NAME | |
775 | ": %s: Warning: down delay (%d) is not a multiple " | |
776 | "of miimon (%d), delay rounded to %d ms\n", | |
777 | bond->dev->name, new_value, bond->params.miimon, | |
778 | (new_value / bond->params.miimon) * | |
779 | bond->params.miimon); | |
780 | } | |
781 | bond->params.downdelay = new_value / bond->params.miimon; | |
3d632c3f SH |
782 | pr_info(DRV_NAME ": %s: Setting down delay to %d.\n", |
783 | bond->dev->name, | |
784 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
785 | |
786 | } | |
787 | ||
788 | out: | |
789 | return ret; | |
790 | } | |
3d632c3f SH |
791 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
792 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 793 | |
43cb76d9 GKH |
794 | static ssize_t bonding_show_updelay(struct device *d, |
795 | struct device_attribute *attr, | |
796 | char *buf) | |
b76cdba9 | 797 | { |
43cb76d9 | 798 | struct bonding *bond = to_bond(d); |
b76cdba9 | 799 | |
7bd46508 | 800 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
801 | |
802 | } | |
803 | ||
43cb76d9 GKH |
804 | static ssize_t bonding_store_updelay(struct device *d, |
805 | struct device_attribute *attr, | |
806 | const char *buf, size_t count) | |
b76cdba9 MW |
807 | { |
808 | int new_value, ret = count; | |
43cb76d9 | 809 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
810 | |
811 | if (!(bond->params.miimon)) { | |
3d632c3f | 812 | pr_err(DRV_NAME |
b76cdba9 MW |
813 | ": %s: Unable to set up delay as MII monitoring is disabled\n", |
814 | bond->dev->name); | |
815 | ret = -EPERM; | |
816 | goto out; | |
817 | } | |
818 | ||
819 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 820 | pr_err(DRV_NAME |
b76cdba9 MW |
821 | ": %s: no up delay value specified.\n", |
822 | bond->dev->name); | |
823 | ret = -EINVAL; | |
824 | goto out; | |
825 | } | |
826 | if (new_value < 0) { | |
3d632c3f | 827 | pr_err(DRV_NAME |
b76cdba9 MW |
828 | ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
829 | bond->dev->name, new_value, 1, INT_MAX); | |
830 | ret = -EINVAL; | |
831 | goto out; | |
832 | } else { | |
833 | if ((new_value % bond->params.miimon) != 0) { | |
834 | printk(KERN_WARNING DRV_NAME | |
835 | ": %s: Warning: up delay (%d) is not a multiple " | |
836 | "of miimon (%d), updelay rounded to %d ms\n", | |
837 | bond->dev->name, new_value, bond->params.miimon, | |
838 | (new_value / bond->params.miimon) * | |
839 | bond->params.miimon); | |
840 | } | |
841 | bond->params.updelay = new_value / bond->params.miimon; | |
3d632c3f | 842 | pr_info(DRV_NAME ": %s: Setting up delay to %d.\n", |
b76cdba9 MW |
843 | bond->dev->name, bond->params.updelay * bond->params.miimon); |
844 | ||
845 | } | |
846 | ||
847 | out: | |
848 | return ret; | |
849 | } | |
3d632c3f SH |
850 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
851 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
852 | |
853 | /* | |
854 | * Show and set the LACP interval. Interface must be down, and the mode | |
855 | * must be set to 802.3ad mode. | |
856 | */ | |
43cb76d9 GKH |
857 | static ssize_t bonding_show_lacp(struct device *d, |
858 | struct device_attribute *attr, | |
859 | char *buf) | |
b76cdba9 | 860 | { |
43cb76d9 | 861 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
862 | |
863 | return sprintf(buf, "%s %d\n", | |
864 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 865 | bond->params.lacp_fast); |
b76cdba9 MW |
866 | } |
867 | ||
43cb76d9 GKH |
868 | static ssize_t bonding_store_lacp(struct device *d, |
869 | struct device_attribute *attr, | |
870 | const char *buf, size_t count) | |
b76cdba9 MW |
871 | { |
872 | int new_value, ret = count; | |
43cb76d9 | 873 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
874 | |
875 | if (bond->dev->flags & IFF_UP) { | |
3d632c3f | 876 | pr_err(DRV_NAME |
b76cdba9 MW |
877 | ": %s: Unable to update LACP rate because interface is up.\n", |
878 | bond->dev->name); | |
879 | ret = -EPERM; | |
880 | goto out; | |
881 | } | |
882 | ||
883 | if (bond->params.mode != BOND_MODE_8023AD) { | |
3d632c3f | 884 | pr_err(DRV_NAME |
b76cdba9 MW |
885 | ": %s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
886 | bond->dev->name); | |
887 | ret = -EPERM; | |
888 | goto out; | |
889 | } | |
890 | ||
ece95f7f | 891 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
892 | |
893 | if ((new_value == 1) || (new_value == 0)) { | |
894 | bond->params.lacp_fast = new_value; | |
3d632c3f SH |
895 | pr_info(DRV_NAME ": %s: Setting LACP rate to %s (%d).\n", |
896 | bond->dev->name, bond_lacp_tbl[new_value].modename, | |
897 | new_value); | |
b76cdba9 | 898 | } else { |
3d632c3f | 899 | pr_err(DRV_NAME |
b76cdba9 | 900 | ": %s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 901 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
902 | ret = -EINVAL; |
903 | } | |
904 | out: | |
905 | return ret; | |
906 | } | |
3d632c3f SH |
907 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
908 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 909 | |
fd989c83 JV |
910 | static ssize_t bonding_show_ad_select(struct device *d, |
911 | struct device_attribute *attr, | |
912 | char *buf) | |
913 | { | |
914 | struct bonding *bond = to_bond(d); | |
915 | ||
916 | return sprintf(buf, "%s %d\n", | |
917 | ad_select_tbl[bond->params.ad_select].modename, | |
918 | bond->params.ad_select); | |
919 | } | |
920 | ||
921 | ||
922 | static ssize_t bonding_store_ad_select(struct device *d, | |
923 | struct device_attribute *attr, | |
924 | const char *buf, size_t count) | |
925 | { | |
926 | int new_value, ret = count; | |
927 | struct bonding *bond = to_bond(d); | |
928 | ||
929 | if (bond->dev->flags & IFF_UP) { | |
3d632c3f | 930 | pr_err(DRV_NAME |
fd989c83 JV |
931 | ": %s: Unable to update ad_select because interface " |
932 | "is up.\n", bond->dev->name); | |
933 | ret = -EPERM; | |
934 | goto out; | |
935 | } | |
936 | ||
937 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
938 | ||
939 | if (new_value != -1) { | |
940 | bond->params.ad_select = new_value; | |
3d632c3f | 941 | pr_info(DRV_NAME |
fd989c83 JV |
942 | ": %s: Setting ad_select to %s (%d).\n", |
943 | bond->dev->name, ad_select_tbl[new_value].modename, | |
944 | new_value); | |
945 | } else { | |
3d632c3f | 946 | pr_err(DRV_NAME |
fd989c83 JV |
947 | ": %s: Ignoring invalid ad_select value %.*s.\n", |
948 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
949 | ret = -EINVAL; | |
950 | } | |
951 | out: | |
952 | return ret; | |
953 | } | |
3d632c3f SH |
954 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
955 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 956 | |
7893b249 MS |
957 | /* |
958 | * Show and set the number of grat ARP to send after a failover event. | |
959 | */ | |
960 | static ssize_t bonding_show_n_grat_arp(struct device *d, | |
961 | struct device_attribute *attr, | |
962 | char *buf) | |
963 | { | |
964 | struct bonding *bond = to_bond(d); | |
965 | ||
966 | return sprintf(buf, "%d\n", bond->params.num_grat_arp); | |
967 | } | |
968 | ||
969 | static ssize_t bonding_store_n_grat_arp(struct device *d, | |
970 | struct device_attribute *attr, | |
971 | const char *buf, size_t count) | |
972 | { | |
973 | int new_value, ret = count; | |
974 | struct bonding *bond = to_bond(d); | |
975 | ||
976 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 977 | pr_err(DRV_NAME |
7893b249 MS |
978 | ": %s: no num_grat_arp value specified.\n", |
979 | bond->dev->name); | |
980 | ret = -EINVAL; | |
981 | goto out; | |
982 | } | |
983 | if (new_value < 0 || new_value > 255) { | |
3d632c3f | 984 | pr_err(DRV_NAME |
7893b249 MS |
985 | ": %s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n", |
986 | bond->dev->name, new_value); | |
987 | ret = -EINVAL; | |
988 | goto out; | |
989 | } else { | |
990 | bond->params.num_grat_arp = new_value; | |
991 | } | |
992 | out: | |
993 | return ret; | |
994 | } | |
3d632c3f SH |
995 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, |
996 | bonding_show_n_grat_arp, bonding_store_n_grat_arp); | |
305d552a BH |
997 | |
998 | /* | |
3d632c3f | 999 | * Show and set the number of unsolicited NA's to send after a failover event. |
305d552a BH |
1000 | */ |
1001 | static ssize_t bonding_show_n_unsol_na(struct device *d, | |
1002 | struct device_attribute *attr, | |
1003 | char *buf) | |
1004 | { | |
1005 | struct bonding *bond = to_bond(d); | |
1006 | ||
1007 | return sprintf(buf, "%d\n", bond->params.num_unsol_na); | |
1008 | } | |
1009 | ||
1010 | static ssize_t bonding_store_n_unsol_na(struct device *d, | |
1011 | struct device_attribute *attr, | |
1012 | const char *buf, size_t count) | |
1013 | { | |
1014 | int new_value, ret = count; | |
1015 | struct bonding *bond = to_bond(d); | |
1016 | ||
1017 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 1018 | pr_err(DRV_NAME |
305d552a BH |
1019 | ": %s: no num_unsol_na value specified.\n", |
1020 | bond->dev->name); | |
1021 | ret = -EINVAL; | |
1022 | goto out; | |
1023 | } | |
3d632c3f | 1024 | |
305d552a | 1025 | if (new_value < 0 || new_value > 255) { |
3d632c3f | 1026 | pr_err(DRV_NAME |
305d552a BH |
1027 | ": %s: Invalid num_unsol_na value %d not in range 0-255; rejected.\n", |
1028 | bond->dev->name, new_value); | |
1029 | ret = -EINVAL; | |
1030 | goto out; | |
3d632c3f | 1031 | } else |
305d552a | 1032 | bond->params.num_unsol_na = new_value; |
305d552a BH |
1033 | out: |
1034 | return ret; | |
1035 | } | |
3d632c3f SH |
1036 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, |
1037 | bonding_show_n_unsol_na, bonding_store_n_unsol_na); | |
305d552a | 1038 | |
b76cdba9 MW |
1039 | /* |
1040 | * Show and set the MII monitor interval. There are two tricky bits | |
1041 | * here. First, if MII monitoring is activated, then we must disable | |
1042 | * ARP monitoring. Second, if the timer isn't running, we must | |
1043 | * start it. | |
1044 | */ | |
43cb76d9 GKH |
1045 | static ssize_t bonding_show_miimon(struct device *d, |
1046 | struct device_attribute *attr, | |
1047 | char *buf) | |
b76cdba9 | 1048 | { |
43cb76d9 | 1049 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1050 | |
7bd46508 | 1051 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
1052 | } |
1053 | ||
43cb76d9 GKH |
1054 | static ssize_t bonding_store_miimon(struct device *d, |
1055 | struct device_attribute *attr, | |
1056 | const char *buf, size_t count) | |
b76cdba9 MW |
1057 | { |
1058 | int new_value, ret = count; | |
43cb76d9 | 1059 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1060 | |
1061 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 1062 | pr_err(DRV_NAME |
b76cdba9 MW |
1063 | ": %s: no miimon value specified.\n", |
1064 | bond->dev->name); | |
1065 | ret = -EINVAL; | |
1066 | goto out; | |
1067 | } | |
1068 | if (new_value < 0) { | |
3d632c3f | 1069 | pr_err(DRV_NAME |
b76cdba9 MW |
1070 | ": %s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1071 | bond->dev->name, new_value, 1, INT_MAX); | |
1072 | ret = -EINVAL; | |
1073 | goto out; | |
1074 | } else { | |
3d632c3f | 1075 | pr_info(DRV_NAME |
b76cdba9 MW |
1076 | ": %s: Setting MII monitoring interval to %d.\n", |
1077 | bond->dev->name, new_value); | |
1078 | bond->params.miimon = new_value; | |
3d632c3f SH |
1079 | if (bond->params.updelay) |
1080 | pr_info(DRV_NAME | |
b76cdba9 MW |
1081 | ": %s: Note: Updating updelay (to %d) " |
1082 | "since it is a multiple of the miimon value.\n", | |
1083 | bond->dev->name, | |
1084 | bond->params.updelay * bond->params.miimon); | |
3d632c3f SH |
1085 | if (bond->params.downdelay) |
1086 | pr_info(DRV_NAME | |
b76cdba9 MW |
1087 | ": %s: Note: Updating downdelay (to %d) " |
1088 | "since it is a multiple of the miimon value.\n", | |
1089 | bond->dev->name, | |
1090 | bond->params.downdelay * bond->params.miimon); | |
1091 | if (bond->params.arp_interval) { | |
3d632c3f | 1092 | pr_info(DRV_NAME |
b76cdba9 MW |
1093 | ": %s: MII monitoring cannot be used with " |
1094 | "ARP monitoring. Disabling ARP monitoring...\n", | |
1095 | bond->dev->name); | |
1096 | bond->params.arp_interval = 0; | |
6cf3f41e | 1097 | bond->dev->priv_flags &= ~IFF_MASTER_ARPMON; |
f5b2b966 JV |
1098 | if (bond->params.arp_validate) { |
1099 | bond_unregister_arp(bond); | |
1100 | bond->params.arp_validate = | |
1101 | BOND_ARP_VALIDATE_NONE; | |
1102 | } | |
1b76b316 JV |
1103 | if (delayed_work_pending(&bond->arp_work)) { |
1104 | cancel_delayed_work(&bond->arp_work); | |
1105 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
1106 | } |
1107 | } | |
1108 | ||
1109 | if (bond->dev->flags & IFF_UP) { | |
1110 | /* If the interface is up, we may need to fire off | |
1111 | * the MII timer. If the interface is down, the | |
1112 | * timer will get fired off when the open function | |
1113 | * is called. | |
1114 | */ | |
1b76b316 JV |
1115 | if (!delayed_work_pending(&bond->mii_work)) { |
1116 | INIT_DELAYED_WORK(&bond->mii_work, | |
1117 | bond_mii_monitor); | |
1118 | queue_delayed_work(bond->wq, | |
1119 | &bond->mii_work, 0); | |
b76cdba9 MW |
1120 | } |
1121 | } | |
1122 | } | |
1123 | out: | |
1124 | return ret; | |
1125 | } | |
3d632c3f SH |
1126 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1127 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1128 | |
1129 | /* | |
1130 | * Show and set the primary slave. The store function is much | |
1131 | * simpler than bonding_store_slaves function because it only needs to | |
1132 | * handle one interface name. | |
1133 | * The bond must be a mode that supports a primary for this be | |
1134 | * set. | |
1135 | */ | |
43cb76d9 GKH |
1136 | static ssize_t bonding_show_primary(struct device *d, |
1137 | struct device_attribute *attr, | |
1138 | char *buf) | |
b76cdba9 MW |
1139 | { |
1140 | int count = 0; | |
43cb76d9 | 1141 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1142 | |
1143 | if (bond->primary_slave) | |
7bd46508 | 1144 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1145 | |
1146 | return count; | |
1147 | } | |
1148 | ||
43cb76d9 GKH |
1149 | static ssize_t bonding_store_primary(struct device *d, |
1150 | struct device_attribute *attr, | |
1151 | const char *buf, size_t count) | |
b76cdba9 MW |
1152 | { |
1153 | int i; | |
1154 | struct slave *slave; | |
43cb76d9 | 1155 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1156 | |
496a60cd EB |
1157 | if (!rtnl_trylock()) |
1158 | return restart_syscall(); | |
e934dd78 JV |
1159 | read_lock(&bond->lock); |
1160 | write_lock_bh(&bond->curr_slave_lock); | |
1161 | ||
b76cdba9 | 1162 | if (!USES_PRIMARY(bond->params.mode)) { |
3d632c3f | 1163 | pr_info(DRV_NAME |
b76cdba9 MW |
1164 | ": %s: Unable to set primary slave; %s is in mode %d\n", |
1165 | bond->dev->name, bond->dev->name, bond->params.mode); | |
1166 | } else { | |
1167 | bond_for_each_slave(bond, slave, i) { | |
1168 | if (strnicmp | |
1169 | (slave->dev->name, buf, | |
1170 | strlen(slave->dev->name)) == 0) { | |
3d632c3f | 1171 | pr_info(DRV_NAME |
b76cdba9 MW |
1172 | ": %s: Setting %s as primary slave.\n", |
1173 | bond->dev->name, slave->dev->name); | |
1174 | bond->primary_slave = slave; | |
1175 | bond_select_active_slave(bond); | |
1176 | goto out; | |
1177 | } | |
1178 | } | |
1179 | ||
1180 | /* if we got here, then we didn't match the name of any slave */ | |
1181 | ||
1182 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
3d632c3f | 1183 | pr_info(DRV_NAME |
b76cdba9 MW |
1184 | ": %s: Setting primary slave to None.\n", |
1185 | bond->dev->name); | |
3418db7c | 1186 | bond->primary_slave = NULL; |
b76cdba9 MW |
1187 | bond_select_active_slave(bond); |
1188 | } else { | |
3d632c3f | 1189 | pr_info(DRV_NAME |
b76cdba9 MW |
1190 | ": %s: Unable to set %.*s as primary slave as it is not a slave.\n", |
1191 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
1192 | } | |
1193 | } | |
1194 | out: | |
e934dd78 JV |
1195 | write_unlock_bh(&bond->curr_slave_lock); |
1196 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1197 | rtnl_unlock(); |
1198 | ||
b76cdba9 MW |
1199 | return count; |
1200 | } | |
3d632c3f SH |
1201 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1202 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 MW |
1203 | |
1204 | /* | |
1205 | * Show and set the use_carrier flag. | |
1206 | */ | |
43cb76d9 GKH |
1207 | static ssize_t bonding_show_carrier(struct device *d, |
1208 | struct device_attribute *attr, | |
1209 | char *buf) | |
b76cdba9 | 1210 | { |
43cb76d9 | 1211 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1212 | |
7bd46508 | 1213 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1214 | } |
1215 | ||
43cb76d9 GKH |
1216 | static ssize_t bonding_store_carrier(struct device *d, |
1217 | struct device_attribute *attr, | |
1218 | const char *buf, size_t count) | |
b76cdba9 MW |
1219 | { |
1220 | int new_value, ret = count; | |
43cb76d9 | 1221 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1222 | |
1223 | ||
1224 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 1225 | pr_err(DRV_NAME |
b76cdba9 MW |
1226 | ": %s: no use_carrier value specified.\n", |
1227 | bond->dev->name); | |
1228 | ret = -EINVAL; | |
1229 | goto out; | |
1230 | } | |
1231 | if ((new_value == 0) || (new_value == 1)) { | |
1232 | bond->params.use_carrier = new_value; | |
3d632c3f | 1233 | pr_info(DRV_NAME ": %s: Setting use_carrier to %d.\n", |
b76cdba9 MW |
1234 | bond->dev->name, new_value); |
1235 | } else { | |
3d632c3f | 1236 | pr_info(DRV_NAME |
b76cdba9 MW |
1237 | ": %s: Ignoring invalid use_carrier value %d.\n", |
1238 | bond->dev->name, new_value); | |
1239 | } | |
1240 | out: | |
1241 | return count; | |
1242 | } | |
3d632c3f SH |
1243 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1244 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1245 | |
1246 | ||
1247 | /* | |
1248 | * Show and set currently active_slave. | |
1249 | */ | |
43cb76d9 GKH |
1250 | static ssize_t bonding_show_active_slave(struct device *d, |
1251 | struct device_attribute *attr, | |
1252 | char *buf) | |
b76cdba9 MW |
1253 | { |
1254 | struct slave *curr; | |
43cb76d9 | 1255 | struct bonding *bond = to_bond(d); |
16cd0160 | 1256 | int count = 0; |
b76cdba9 | 1257 | |
b76cdba9 MW |
1258 | read_lock(&bond->curr_slave_lock); |
1259 | curr = bond->curr_active_slave; | |
1260 | read_unlock(&bond->curr_slave_lock); | |
1261 | ||
1262 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1263 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1264 | return count; |
1265 | } | |
1266 | ||
43cb76d9 GKH |
1267 | static ssize_t bonding_store_active_slave(struct device *d, |
1268 | struct device_attribute *attr, | |
1269 | const char *buf, size_t count) | |
b76cdba9 MW |
1270 | { |
1271 | int i; | |
1272 | struct slave *slave; | |
3d632c3f SH |
1273 | struct slave *old_active = NULL; |
1274 | struct slave *new_active = NULL; | |
43cb76d9 | 1275 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1276 | |
496a60cd EB |
1277 | if (!rtnl_trylock()) |
1278 | return restart_syscall(); | |
e934dd78 JV |
1279 | read_lock(&bond->lock); |
1280 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1281 | |
3d632c3f SH |
1282 | if (!USES_PRIMARY(bond->params.mode)) |
1283 | pr_info(DRV_NAME ": %s: Unable to change active slave;" | |
1284 | " %s is in mode %d\n", | |
1285 | bond->dev->name, bond->dev->name, bond->params.mode); | |
1286 | else { | |
b76cdba9 MW |
1287 | bond_for_each_slave(bond, slave, i) { |
1288 | if (strnicmp | |
1289 | (slave->dev->name, buf, | |
1290 | strlen(slave->dev->name)) == 0) { | |
1291 | old_active = bond->curr_active_slave; | |
1292 | new_active = slave; | |
a50d8de2 | 1293 | if (new_active == old_active) { |
b76cdba9 MW |
1294 | /* do nothing */ |
1295 | printk(KERN_INFO DRV_NAME | |
1296 | ": %s: %s is already the current active slave.\n", | |
1297 | bond->dev->name, slave->dev->name); | |
1298 | goto out; | |
1299 | } | |
1300 | else { | |
1301 | if ((new_active) && | |
1302 | (old_active) && | |
1303 | (new_active->link == BOND_LINK_UP) && | |
1304 | IS_UP(new_active->dev)) { | |
1305 | printk(KERN_INFO DRV_NAME | |
1306 | ": %s: Setting %s as active slave.\n", | |
1307 | bond->dev->name, slave->dev->name); | |
1308 | bond_change_active_slave(bond, new_active); | |
1309 | } | |
1310 | else { | |
1311 | printk(KERN_INFO DRV_NAME | |
1312 | ": %s: Could not set %s as active slave; " | |
1313 | "either %s is down or the link is down.\n", | |
1314 | bond->dev->name, slave->dev->name, | |
1315 | slave->dev->name); | |
1316 | } | |
1317 | goto out; | |
1318 | } | |
1319 | } | |
1320 | } | |
1321 | ||
1322 | /* if we got here, then we didn't match the name of any slave */ | |
1323 | ||
1324 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
3d632c3f SH |
1325 | pr_info(DRV_NAME |
1326 | ": %s: Setting active slave to None.\n", | |
1327 | bond->dev->name); | |
3418db7c | 1328 | bond->primary_slave = NULL; |
3d632c3f | 1329 | bond_select_active_slave(bond); |
b76cdba9 | 1330 | } else { |
3d632c3f SH |
1331 | pr_info(DRV_NAME ": %s: Unable to set %.*s" |
1332 | " as active slave as it is not a slave.\n", | |
1333 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
1334 | } |
1335 | } | |
3d632c3f | 1336 | out: |
e934dd78 JV |
1337 | write_unlock_bh(&bond->curr_slave_lock); |
1338 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1339 | rtnl_unlock(); |
1340 | ||
b76cdba9 MW |
1341 | return count; |
1342 | ||
1343 | } | |
3d632c3f SH |
1344 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1345 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1346 | |
1347 | ||
1348 | /* | |
1349 | * Show link status of the bond interface. | |
1350 | */ | |
43cb76d9 GKH |
1351 | static ssize_t bonding_show_mii_status(struct device *d, |
1352 | struct device_attribute *attr, | |
1353 | char *buf) | |
b76cdba9 MW |
1354 | { |
1355 | struct slave *curr; | |
43cb76d9 | 1356 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1357 | |
1358 | read_lock(&bond->curr_slave_lock); | |
1359 | curr = bond->curr_active_slave; | |
1360 | read_unlock(&bond->curr_slave_lock); | |
1361 | ||
3d632c3f | 1362 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1363 | } |
43cb76d9 | 1364 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 MW |
1365 | |
1366 | ||
1367 | /* | |
1368 | * Show current 802.3ad aggregator ID. | |
1369 | */ | |
43cb76d9 GKH |
1370 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1371 | struct device_attribute *attr, | |
1372 | char *buf) | |
b76cdba9 MW |
1373 | { |
1374 | int count = 0; | |
43cb76d9 | 1375 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1376 | |
1377 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1378 | struct ad_info ad_info; | |
3d632c3f SH |
1379 | count = sprintf(buf, "%d\n", |
1380 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1381 | ? 0 : ad_info.aggregator_id); | |
b76cdba9 | 1382 | } |
b76cdba9 MW |
1383 | |
1384 | return count; | |
1385 | } | |
43cb76d9 | 1386 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1387 | |
1388 | ||
1389 | /* | |
1390 | * Show number of active 802.3ad ports. | |
1391 | */ | |
43cb76d9 GKH |
1392 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1393 | struct device_attribute *attr, | |
1394 | char *buf) | |
b76cdba9 MW |
1395 | { |
1396 | int count = 0; | |
43cb76d9 | 1397 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1398 | |
1399 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1400 | struct ad_info ad_info; | |
3d632c3f SH |
1401 | count = sprintf(buf, "%d\n", |
1402 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1403 | ? 0 : ad_info.ports); | |
b76cdba9 | 1404 | } |
b76cdba9 MW |
1405 | |
1406 | return count; | |
1407 | } | |
43cb76d9 | 1408 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1409 | |
1410 | ||
1411 | /* | |
1412 | * Show current 802.3ad actor key. | |
1413 | */ | |
43cb76d9 GKH |
1414 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1415 | struct device_attribute *attr, | |
1416 | char *buf) | |
b76cdba9 MW |
1417 | { |
1418 | int count = 0; | |
43cb76d9 | 1419 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1420 | |
1421 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1422 | struct ad_info ad_info; | |
3d632c3f SH |
1423 | count = sprintf(buf, "%d\n", |
1424 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1425 | ? 0 : ad_info.actor_key); | |
b76cdba9 | 1426 | } |
b76cdba9 MW |
1427 | |
1428 | return count; | |
1429 | } | |
43cb76d9 | 1430 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1431 | |
1432 | ||
1433 | /* | |
1434 | * Show current 802.3ad partner key. | |
1435 | */ | |
43cb76d9 GKH |
1436 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1437 | struct device_attribute *attr, | |
1438 | char *buf) | |
b76cdba9 MW |
1439 | { |
1440 | int count = 0; | |
43cb76d9 | 1441 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1442 | |
1443 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1444 | struct ad_info ad_info; | |
3d632c3f SH |
1445 | count = sprintf(buf, "%d\n", |
1446 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1447 | ? 0 : ad_info.partner_key); | |
b76cdba9 | 1448 | } |
b76cdba9 MW |
1449 | |
1450 | return count; | |
1451 | } | |
43cb76d9 | 1452 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1453 | |
1454 | ||
1455 | /* | |
1456 | * Show current 802.3ad partner mac. | |
1457 | */ | |
43cb76d9 GKH |
1458 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1459 | struct device_attribute *attr, | |
1460 | char *buf) | |
b76cdba9 MW |
1461 | { |
1462 | int count = 0; | |
43cb76d9 | 1463 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1464 | |
1465 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1466 | struct ad_info ad_info; | |
3d632c3f | 1467 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1468 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1469 | } |
b76cdba9 MW |
1470 | |
1471 | return count; | |
1472 | } | |
43cb76d9 | 1473 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 MW |
1474 | |
1475 | ||
1476 | ||
1477 | static struct attribute *per_bond_attrs[] = { | |
43cb76d9 GKH |
1478 | &dev_attr_slaves.attr, |
1479 | &dev_attr_mode.attr, | |
dd957c57 | 1480 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1481 | &dev_attr_arp_validate.attr, |
1482 | &dev_attr_arp_interval.attr, | |
1483 | &dev_attr_arp_ip_target.attr, | |
1484 | &dev_attr_downdelay.attr, | |
1485 | &dev_attr_updelay.attr, | |
1486 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1487 | &dev_attr_ad_select.attr, |
43cb76d9 | 1488 | &dev_attr_xmit_hash_policy.attr, |
7893b249 | 1489 | &dev_attr_num_grat_arp.attr, |
305d552a | 1490 | &dev_attr_num_unsol_na.attr, |
43cb76d9 GKH |
1491 | &dev_attr_miimon.attr, |
1492 | &dev_attr_primary.attr, | |
1493 | &dev_attr_use_carrier.attr, | |
1494 | &dev_attr_active_slave.attr, | |
1495 | &dev_attr_mii_status.attr, | |
1496 | &dev_attr_ad_aggregator.attr, | |
1497 | &dev_attr_ad_num_ports.attr, | |
1498 | &dev_attr_ad_actor_key.attr, | |
1499 | &dev_attr_ad_partner_key.attr, | |
1500 | &dev_attr_ad_partner_mac.attr, | |
b76cdba9 MW |
1501 | NULL, |
1502 | }; | |
1503 | ||
1504 | static struct attribute_group bonding_group = { | |
1505 | .name = "bonding", | |
1506 | .attrs = per_bond_attrs, | |
1507 | }; | |
1508 | ||
1509 | /* | |
1510 | * Initialize sysfs. This sets up the bonding_masters file in | |
1511 | * /sys/class/net. | |
1512 | */ | |
1513 | int bond_create_sysfs(void) | |
1514 | { | |
b8a9787e | 1515 | int ret; |
b76cdba9 | 1516 | |
b8a9787e | 1517 | ret = netdev_class_create_file(&class_attr_bonding_masters); |
877cbd36 JV |
1518 | /* |
1519 | * Permit multiple loads of the module by ignoring failures to | |
1520 | * create the bonding_masters sysfs file. Bonding devices | |
1521 | * created by second or subsequent loads of the module will | |
1522 | * not be listed in, or controllable by, bonding_masters, but | |
1523 | * will have the usual "bonding" sysfs directory. | |
1524 | * | |
1525 | * This is done to preserve backwards compatibility for | |
1526 | * initscripts/sysconfig, which load bonding multiple times to | |
1527 | * configure multiple bonding devices. | |
1528 | */ | |
1529 | if (ret == -EEXIST) { | |
38d2f38b SH |
1530 | /* Is someone being kinky and naming a device bonding_master? */ |
1531 | if (__dev_get_by_name(&init_net, | |
1532 | class_attr_bonding_masters.attr.name)) | |
1533 | printk(KERN_ERR | |
1534 | "network device named %s already exists in sysfs", | |
1535 | class_attr_bonding_masters.attr.name); | |
130aa61a | 1536 | ret = 0; |
877cbd36 | 1537 | } |
b76cdba9 MW |
1538 | |
1539 | return ret; | |
1540 | ||
1541 | } | |
1542 | ||
1543 | /* | |
1544 | * Remove /sys/class/net/bonding_masters. | |
1545 | */ | |
1546 | void bond_destroy_sysfs(void) | |
1547 | { | |
b8a9787e | 1548 | netdev_class_remove_file(&class_attr_bonding_masters); |
b76cdba9 MW |
1549 | } |
1550 | ||
1551 | /* | |
1552 | * Initialize sysfs for each bond. This sets up and registers | |
1553 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1554 | */ | |
1555 | int bond_create_sysfs_entry(struct bonding *bond) | |
1556 | { | |
1557 | struct net_device *dev = bond->dev; | |
1558 | int err; | |
1559 | ||
43cb76d9 | 1560 | err = sysfs_create_group(&(dev->dev.kobj), &bonding_group); |
3d632c3f | 1561 | if (err) |
b76cdba9 | 1562 | printk(KERN_EMERG "eek! didn't create group!\n"); |
b76cdba9 | 1563 | |
b76cdba9 MW |
1564 | return err; |
1565 | } | |
1566 | /* | |
1567 | * Remove sysfs entries for each bond. | |
1568 | */ | |
1569 | void bond_destroy_sysfs_entry(struct bonding *bond) | |
1570 | { | |
1571 | struct net_device *dev = bond->dev; | |
1572 | ||
43cb76d9 | 1573 | sysfs_remove_group(&(dev->dev.kobj), &bonding_group); |
b76cdba9 MW |
1574 | } |
1575 |