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Commit | Line | Data |
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b76cdba9 MW |
1 | |
2 | /* | |
3 | * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License as published by the | |
7 | * Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
12 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 | * for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License along | |
16 | * with this program; if not, write to the Free Software Foundation, Inc., | |
17 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
18 | * | |
19 | * The full GNU General Public License is included in this distribution in the | |
20 | * file called LICENSE. | |
21 | * | |
b76cdba9 | 22 | */ |
b76cdba9 MW |
23 | #include <linux/kernel.h> |
24 | #include <linux/module.h> | |
b76cdba9 MW |
25 | #include <linux/device.h> |
26 | #include <linux/sysdev.h> | |
27 | #include <linux/fs.h> | |
28 | #include <linux/types.h> | |
29 | #include <linux/string.h> | |
30 | #include <linux/netdevice.h> | |
31 | #include <linux/inetdevice.h> | |
32 | #include <linux/in.h> | |
33 | #include <linux/sysfs.h> | |
b76cdba9 MW |
34 | #include <linux/ctype.h> |
35 | #include <linux/inet.h> | |
36 | #include <linux/rtnetlink.h> | |
881d966b | 37 | #include <net/net_namespace.h> |
b76cdba9 | 38 | |
b76cdba9 | 39 | #include "bonding.h" |
5a03cdb7 | 40 | |
43cb76d9 | 41 | #define to_dev(obj) container_of(obj,struct device,kobj) |
454d7c9b | 42 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 MW |
43 | |
44 | /*---------------------------- Declarations -------------------------------*/ | |
45 | ||
b76cdba9 | 46 | static int expected_refcount = -1; |
b76cdba9 MW |
47 | /*--------------------------- Data Structures -----------------------------*/ |
48 | ||
3a4fa0a2 | 49 | /* Bonding sysfs lock. Why can't we just use the subsystem lock? |
b76cdba9 MW |
50 | * Because kobject_register tries to acquire the subsystem lock. If |
51 | * we already hold the lock (which we would if the user was creating | |
52 | * a new bond through the sysfs interface), we deadlock. | |
53 | * This lock is only needed when deleting a bond - we need to make sure | |
54 | * that we don't collide with an ongoing ioctl. | |
55 | */ | |
56 | ||
57 | struct rw_semaphore bonding_rwsem; | |
58 | ||
59 | ||
60 | ||
61 | ||
62 | /*------------------------------ Functions --------------------------------*/ | |
63 | ||
64 | /* | |
65 | * "show" function for the bond_masters attribute. | |
66 | * The class parameter is ignored. | |
67 | */ | |
b8843665 | 68 | static ssize_t bonding_show_bonds(struct class *cls, char *buf) |
b76cdba9 MW |
69 | { |
70 | int res = 0; | |
71 | struct bonding *bond; | |
72 | ||
73 | down_read(&(bonding_rwsem)); | |
74 | ||
75 | list_for_each_entry(bond, &bond_dev_list, bond_list) { | |
76 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
77 | /* not enough space for another interface name */ | |
78 | if ((PAGE_SIZE - res) > 10) | |
79 | res = PAGE_SIZE - 10; | |
b8843665 | 80 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
81 | break; |
82 | } | |
b8843665 | 83 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 84 | } |
1dcdcd69 WF |
85 | if (res) |
86 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
87 | up_read(&(bonding_rwsem)); |
88 | return res; | |
89 | } | |
90 | ||
91 | /* | |
92 | * "store" function for the bond_masters attribute. This is what | |
93 | * creates and deletes entire bonds. | |
94 | * | |
95 | * The class parameter is ignored. | |
96 | * | |
97 | */ | |
98 | ||
99 | static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t count) | |
100 | { | |
101 | char command[IFNAMSIZ + 1] = {0, }; | |
102 | char *ifname; | |
027ea041 | 103 | int rv, res = count; |
b76cdba9 | 104 | struct bonding *bond; |
b76cdba9 | 105 | |
b76cdba9 MW |
106 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
107 | ifname = command + 1; | |
108 | if ((strlen(command) <= 1) || | |
109 | !dev_valid_name(ifname)) | |
110 | goto err_no_cmd; | |
111 | ||
112 | if (command[0] == '+') { | |
b76cdba9 MW |
113 | printk(KERN_INFO DRV_NAME |
114 | ": %s is being created...\n", ifname); | |
0dd646fe | 115 | rv = bond_create(ifname, &bonding_defaults); |
027ea041 JV |
116 | if (rv) { |
117 | printk(KERN_INFO DRV_NAME ": Bond creation failed.\n"); | |
118 | res = rv; | |
b76cdba9 MW |
119 | } |
120 | goto out; | |
121 | } | |
122 | ||
123 | if (command[0] == '-') { | |
027ea041 JV |
124 | rtnl_lock(); |
125 | down_write(&bonding_rwsem); | |
126 | ||
0883beca | 127 | list_for_each_entry(bond, &bond_dev_list, bond_list) |
b76cdba9 | 128 | if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) { |
b76cdba9 MW |
129 | /* check the ref count on the bond's kobject. |
130 | * If it's > expected, then there's a file open, | |
131 | * and we have to fail. | |
132 | */ | |
43cb76d9 | 133 | if (atomic_read(&bond->dev->dev.kobj.kref.refcount) |
b76cdba9 | 134 | > expected_refcount){ |
b76cdba9 MW |
135 | printk(KERN_INFO DRV_NAME |
136 | ": Unable remove bond %s due to open references.\n", | |
137 | ifname); | |
138 | res = -EPERM; | |
c4ebc66a | 139 | goto out_unlock; |
b76cdba9 MW |
140 | } |
141 | printk(KERN_INFO DRV_NAME | |
142 | ": %s is being deleted...\n", | |
143 | bond->dev->name); | |
d90a162a | 144 | bond_destroy(bond); |
c4ebc66a | 145 | goto out_unlock; |
b76cdba9 MW |
146 | } |
147 | ||
148 | printk(KERN_ERR DRV_NAME | |
149 | ": unable to delete non-existent bond %s\n", ifname); | |
150 | res = -ENODEV; | |
c4ebc66a | 151 | goto out_unlock; |
b76cdba9 MW |
152 | } |
153 | ||
154 | err_no_cmd: | |
155 | printk(KERN_ERR DRV_NAME | |
156 | ": no command found in bonding_masters. Use +ifname or -ifname.\n"); | |
c4ebc66a JV |
157 | return -EPERM; |
158 | ||
159 | out_unlock: | |
160 | up_write(&bonding_rwsem); | |
161 | rtnl_unlock(); | |
b76cdba9 MW |
162 | |
163 | /* Always return either count or an error. If you return 0, you'll | |
164 | * get called forever, which is bad. | |
165 | */ | |
166 | out: | |
b76cdba9 MW |
167 | return res; |
168 | } | |
169 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ | |
170 | static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO, | |
171 | bonding_show_bonds, bonding_store_bonds); | |
172 | ||
173 | int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave) | |
174 | { | |
175 | char linkname[IFNAMSIZ+7]; | |
176 | int ret = 0; | |
177 | ||
178 | /* first, create a link from the slave back to the master */ | |
43cb76d9 | 179 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
b76cdba9 MW |
180 | "master"); |
181 | if (ret) | |
182 | return ret; | |
183 | /* next, create a link from the master to the slave */ | |
184 | sprintf(linkname,"slave_%s",slave->name); | |
43cb76d9 | 185 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
b76cdba9 MW |
186 | linkname); |
187 | return ret; | |
188 | ||
189 | } | |
190 | ||
191 | void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave) | |
192 | { | |
193 | char linkname[IFNAMSIZ+7]; | |
194 | ||
43cb76d9 | 195 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
b76cdba9 | 196 | sprintf(linkname,"slave_%s",slave->name); |
43cb76d9 | 197 | sysfs_remove_link(&(master->dev.kobj), linkname); |
b76cdba9 MW |
198 | } |
199 | ||
200 | ||
201 | /* | |
202 | * Show the slaves in the current bond. | |
203 | */ | |
43cb76d9 GKH |
204 | static ssize_t bonding_show_slaves(struct device *d, |
205 | struct device_attribute *attr, char *buf) | |
b76cdba9 MW |
206 | { |
207 | struct slave *slave; | |
208 | int i, res = 0; | |
43cb76d9 | 209 | struct bonding *bond = to_bond(d); |
b76cdba9 | 210 | |
6603a6f2 | 211 | read_lock(&bond->lock); |
b76cdba9 MW |
212 | bond_for_each_slave(bond, slave, i) { |
213 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
214 | /* not enough space for another interface name */ | |
215 | if ((PAGE_SIZE - res) > 10) | |
216 | res = PAGE_SIZE - 10; | |
7bd46508 | 217 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
218 | break; |
219 | } | |
220 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
221 | } | |
6603a6f2 | 222 | read_unlock(&bond->lock); |
1dcdcd69 WF |
223 | if (res) |
224 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
225 | return res; |
226 | } | |
227 | ||
228 | /* | |
229 | * Set the slaves in the current bond. The bond interface must be | |
230 | * up for this to succeed. | |
231 | * This function is largely the same flow as bonding_update_bonds(). | |
232 | */ | |
43cb76d9 GKH |
233 | static ssize_t bonding_store_slaves(struct device *d, |
234 | struct device_attribute *attr, | |
235 | const char *buffer, size_t count) | |
b76cdba9 MW |
236 | { |
237 | char command[IFNAMSIZ + 1] = { 0, }; | |
238 | char *ifname; | |
239 | int i, res, found, ret = count; | |
3158bf7d | 240 | u32 original_mtu; |
b76cdba9 | 241 | struct slave *slave; |
3418db7c | 242 | struct net_device *dev = NULL; |
43cb76d9 | 243 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
244 | |
245 | /* Quick sanity check -- is the bond interface up? */ | |
246 | if (!(bond->dev->flags & IFF_UP)) { | |
6b1bf096 MS |
247 | printk(KERN_WARNING DRV_NAME |
248 | ": %s: doing slave updates when interface is down.\n", | |
b76cdba9 | 249 | bond->dev->name); |
b76cdba9 MW |
250 | } |
251 | ||
252 | /* Note: We can't hold bond->lock here, as bond_create grabs it. */ | |
253 | ||
496a60cd EB |
254 | if (!rtnl_trylock()) |
255 | return restart_syscall(); | |
027ea041 JV |
256 | down_write(&(bonding_rwsem)); |
257 | ||
b76cdba9 MW |
258 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
259 | ifname = command + 1; | |
260 | if ((strlen(command) <= 1) || | |
261 | !dev_valid_name(ifname)) | |
262 | goto err_no_cmd; | |
263 | ||
264 | if (command[0] == '+') { | |
265 | ||
266 | /* Got a slave name in ifname. Is it already in the list? */ | |
267 | found = 0; | |
6603a6f2 | 268 | read_lock(&bond->lock); |
b76cdba9 MW |
269 | bond_for_each_slave(bond, slave, i) |
270 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
271 | printk(KERN_ERR DRV_NAME | |
272 | ": %s: Interface %s is already enslaved!\n", | |
273 | bond->dev->name, ifname); | |
274 | ret = -EPERM; | |
6603a6f2 | 275 | read_unlock(&bond->lock); |
b76cdba9 MW |
276 | goto out; |
277 | } | |
278 | ||
6603a6f2 | 279 | read_unlock(&bond->lock); |
b76cdba9 MW |
280 | printk(KERN_INFO DRV_NAME ": %s: Adding slave %s.\n", |
281 | bond->dev->name, ifname); | |
881d966b | 282 | dev = dev_get_by_name(&init_net, ifname); |
b76cdba9 MW |
283 | if (!dev) { |
284 | printk(KERN_INFO DRV_NAME | |
285 | ": %s: Interface %s does not exist!\n", | |
286 | bond->dev->name, ifname); | |
287 | ret = -EPERM; | |
288 | goto out; | |
289 | } | |
290 | else | |
291 | dev_put(dev); | |
292 | ||
293 | if (dev->flags & IFF_UP) { | |
294 | printk(KERN_ERR DRV_NAME | |
295 | ": %s: Error: Unable to enslave %s " | |
296 | "because it is already up.\n", | |
297 | bond->dev->name, dev->name); | |
298 | ret = -EPERM; | |
299 | goto out; | |
300 | } | |
301 | /* If this is the first slave, then we need to set | |
302 | the master's hardware address to be the same as the | |
303 | slave's. */ | |
304 | if (!(*((u32 *) & (bond->dev->dev_addr[0])))) { | |
305 | memcpy(bond->dev->dev_addr, dev->dev_addr, | |
306 | dev->addr_len); | |
307 | } | |
308 | ||
309 | /* Set the slave's MTU to match the bond */ | |
3158bf7d | 310 | original_mtu = dev->mtu; |
eb7cc59a SH |
311 | res = dev_set_mtu(dev, bond->dev->mtu); |
312 | if (res) { | |
313 | ret = res; | |
314 | goto out; | |
b76cdba9 | 315 | } |
eb7cc59a | 316 | |
b76cdba9 | 317 | res = bond_enslave(bond->dev, dev); |
3158bf7d MS |
318 | bond_for_each_slave(bond, slave, i) |
319 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) | |
320 | slave->original_mtu = original_mtu; | |
b76cdba9 MW |
321 | if (res) { |
322 | ret = res; | |
323 | } | |
324 | goto out; | |
325 | } | |
326 | ||
327 | if (command[0] == '-') { | |
328 | dev = NULL; | |
6952d892 | 329 | original_mtu = 0; |
b76cdba9 MW |
330 | bond_for_each_slave(bond, slave, i) |
331 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
332 | dev = slave->dev; | |
3158bf7d | 333 | original_mtu = slave->original_mtu; |
b76cdba9 MW |
334 | break; |
335 | } | |
336 | if (dev) { | |
337 | printk(KERN_INFO DRV_NAME ": %s: Removing slave %s\n", | |
338 | bond->dev->name, dev->name); | |
d90a162a | 339 | res = bond_release(bond->dev, dev); |
b76cdba9 MW |
340 | if (res) { |
341 | ret = res; | |
342 | goto out; | |
343 | } | |
344 | /* set the slave MTU to the default */ | |
eb7cc59a | 345 | dev_set_mtu(dev, original_mtu); |
b76cdba9 MW |
346 | } |
347 | else { | |
348 | printk(KERN_ERR DRV_NAME ": unable to remove non-existent slave %s for bond %s.\n", | |
349 | ifname, bond->dev->name); | |
350 | ret = -ENODEV; | |
351 | } | |
352 | goto out; | |
353 | } | |
354 | ||
355 | err_no_cmd: | |
356 | printk(KERN_ERR DRV_NAME ": no command found in slaves file for bond %s. Use +ifname or -ifname.\n", bond->dev->name); | |
357 | ret = -EPERM; | |
358 | ||
359 | out: | |
027ea041 JV |
360 | up_write(&(bonding_rwsem)); |
361 | rtnl_unlock(); | |
b76cdba9 MW |
362 | return ret; |
363 | } | |
364 | ||
43cb76d9 | 365 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, bonding_store_slaves); |
b76cdba9 MW |
366 | |
367 | /* | |
368 | * Show and set the bonding mode. The bond interface must be down to | |
369 | * change the mode. | |
370 | */ | |
43cb76d9 GKH |
371 | static ssize_t bonding_show_mode(struct device *d, |
372 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 373 | { |
43cb76d9 | 374 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
375 | |
376 | return sprintf(buf, "%s %d\n", | |
377 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 378 | bond->params.mode); |
b76cdba9 MW |
379 | } |
380 | ||
43cb76d9 GKH |
381 | static ssize_t bonding_store_mode(struct device *d, |
382 | struct device_attribute *attr, | |
383 | const char *buf, size_t count) | |
b76cdba9 MW |
384 | { |
385 | int new_value, ret = count; | |
43cb76d9 | 386 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
387 | |
388 | if (bond->dev->flags & IFF_UP) { | |
389 | printk(KERN_ERR DRV_NAME | |
390 | ": unable to update mode of %s because interface is up.\n", | |
391 | bond->dev->name); | |
392 | ret = -EPERM; | |
393 | goto out; | |
394 | } | |
395 | ||
ece95f7f | 396 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 MW |
397 | if (new_value < 0) { |
398 | printk(KERN_ERR DRV_NAME | |
399 | ": %s: Ignoring invalid mode value %.*s.\n", | |
400 | bond->dev->name, | |
401 | (int)strlen(buf) - 1, buf); | |
402 | ret = -EINVAL; | |
403 | goto out; | |
404 | } else { | |
8f903c70 JV |
405 | if (bond->params.mode == BOND_MODE_8023AD) |
406 | bond_unset_master_3ad_flags(bond); | |
407 | ||
408 | if (bond->params.mode == BOND_MODE_ALB) | |
409 | bond_unset_master_alb_flags(bond); | |
410 | ||
b76cdba9 MW |
411 | bond->params.mode = new_value; |
412 | bond_set_mode_ops(bond, bond->params.mode); | |
413 | printk(KERN_INFO DRV_NAME ": %s: setting mode to %s (%d).\n", | |
414 | bond->dev->name, bond_mode_tbl[new_value].modename, new_value); | |
415 | } | |
416 | out: | |
417 | return ret; | |
418 | } | |
43cb76d9 | 419 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, bonding_show_mode, bonding_store_mode); |
b76cdba9 MW |
420 | |
421 | /* | |
422 | * Show and set the bonding transmit hash method. The bond interface must be down to | |
423 | * change the xmit hash policy. | |
424 | */ | |
43cb76d9 GKH |
425 | static ssize_t bonding_show_xmit_hash(struct device *d, |
426 | struct device_attribute *attr, | |
427 | char *buf) | |
b76cdba9 | 428 | { |
43cb76d9 | 429 | struct bonding *bond = to_bond(d); |
b76cdba9 | 430 | |
8e4b9329 WF |
431 | return sprintf(buf, "%s %d\n", |
432 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
433 | bond->params.xmit_policy); | |
b76cdba9 MW |
434 | } |
435 | ||
43cb76d9 GKH |
436 | static ssize_t bonding_store_xmit_hash(struct device *d, |
437 | struct device_attribute *attr, | |
438 | const char *buf, size_t count) | |
b76cdba9 MW |
439 | { |
440 | int new_value, ret = count; | |
43cb76d9 | 441 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
442 | |
443 | if (bond->dev->flags & IFF_UP) { | |
444 | printk(KERN_ERR DRV_NAME | |
445 | "%s: Interface is up. Unable to update xmit policy.\n", | |
446 | bond->dev->name); | |
447 | ret = -EPERM; | |
448 | goto out; | |
449 | } | |
450 | ||
ece95f7f | 451 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 MW |
452 | if (new_value < 0) { |
453 | printk(KERN_ERR DRV_NAME | |
454 | ": %s: Ignoring invalid xmit hash policy value %.*s.\n", | |
455 | bond->dev->name, | |
456 | (int)strlen(buf) - 1, buf); | |
457 | ret = -EINVAL; | |
458 | goto out; | |
459 | } else { | |
460 | bond->params.xmit_policy = new_value; | |
461 | bond_set_mode_ops(bond, bond->params.mode); | |
462 | printk(KERN_INFO DRV_NAME ": %s: setting xmit hash policy to %s (%d).\n", | |
463 | bond->dev->name, xmit_hashtype_tbl[new_value].modename, new_value); | |
464 | } | |
465 | out: | |
466 | return ret; | |
467 | } | |
43cb76d9 | 468 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, bonding_show_xmit_hash, bonding_store_xmit_hash); |
b76cdba9 | 469 | |
f5b2b966 JV |
470 | /* |
471 | * Show and set arp_validate. | |
472 | */ | |
43cb76d9 GKH |
473 | static ssize_t bonding_show_arp_validate(struct device *d, |
474 | struct device_attribute *attr, | |
475 | char *buf) | |
f5b2b966 | 476 | { |
43cb76d9 | 477 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
478 | |
479 | return sprintf(buf, "%s %d\n", | |
480 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 481 | bond->params.arp_validate); |
f5b2b966 JV |
482 | } |
483 | ||
43cb76d9 GKH |
484 | static ssize_t bonding_store_arp_validate(struct device *d, |
485 | struct device_attribute *attr, | |
486 | const char *buf, size_t count) | |
f5b2b966 JV |
487 | { |
488 | int new_value; | |
43cb76d9 | 489 | struct bonding *bond = to_bond(d); |
f5b2b966 | 490 | |
ece95f7f | 491 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 JV |
492 | if (new_value < 0) { |
493 | printk(KERN_ERR DRV_NAME | |
494 | ": %s: Ignoring invalid arp_validate value %s\n", | |
495 | bond->dev->name, buf); | |
496 | return -EINVAL; | |
497 | } | |
498 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
499 | printk(KERN_ERR DRV_NAME | |
500 | ": %s: arp_validate only supported in active-backup mode.\n", | |
501 | bond->dev->name); | |
502 | return -EINVAL; | |
503 | } | |
504 | printk(KERN_INFO DRV_NAME ": %s: setting arp_validate to %s (%d).\n", | |
505 | bond->dev->name, arp_validate_tbl[new_value].modename, | |
506 | new_value); | |
507 | ||
508 | if (!bond->params.arp_validate && new_value) { | |
509 | bond_register_arp(bond); | |
510 | } else if (bond->params.arp_validate && !new_value) { | |
511 | bond_unregister_arp(bond); | |
512 | } | |
513 | ||
514 | bond->params.arp_validate = new_value; | |
515 | ||
516 | return count; | |
517 | } | |
518 | ||
43cb76d9 | 519 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, bonding_store_arp_validate); |
f5b2b966 | 520 | |
dd957c57 JV |
521 | /* |
522 | * Show and store fail_over_mac. User only allowed to change the | |
523 | * value when there are no slaves. | |
524 | */ | |
525 | static ssize_t bonding_show_fail_over_mac(struct device *d, struct device_attribute *attr, char *buf) | |
526 | { | |
527 | struct bonding *bond = to_bond(d); | |
528 | ||
3915c1e8 JV |
529 | return sprintf(buf, "%s %d\n", |
530 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
531 | bond->params.fail_over_mac); | |
dd957c57 JV |
532 | } |
533 | ||
534 | static ssize_t bonding_store_fail_over_mac(struct device *d, struct device_attribute *attr, const char *buf, size_t count) | |
535 | { | |
536 | int new_value; | |
dd957c57 JV |
537 | struct bonding *bond = to_bond(d); |
538 | ||
539 | if (bond->slave_cnt != 0) { | |
540 | printk(KERN_ERR DRV_NAME | |
541 | ": %s: Can't alter fail_over_mac with slaves in bond.\n", | |
542 | bond->dev->name); | |
3915c1e8 | 543 | return -EPERM; |
dd957c57 JV |
544 | } |
545 | ||
3915c1e8 JV |
546 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
547 | if (new_value < 0) { | |
dd957c57 | 548 | printk(KERN_ERR DRV_NAME |
3915c1e8 JV |
549 | ": %s: Ignoring invalid fail_over_mac value %s.\n", |
550 | bond->dev->name, buf); | |
551 | return -EINVAL; | |
dd957c57 JV |
552 | } |
553 | ||
3915c1e8 JV |
554 | bond->params.fail_over_mac = new_value; |
555 | printk(KERN_INFO DRV_NAME ": %s: Setting fail_over_mac to %s (%d).\n", | |
556 | bond->dev->name, fail_over_mac_tbl[new_value].modename, | |
557 | new_value); | |
558 | ||
559 | return count; | |
dd957c57 JV |
560 | } |
561 | ||
562 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
563 | ||
b76cdba9 MW |
564 | /* |
565 | * Show and set the arp timer interval. There are two tricky bits | |
566 | * here. First, if ARP monitoring is activated, then we must disable | |
567 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
568 | * start it. | |
569 | */ | |
43cb76d9 GKH |
570 | static ssize_t bonding_show_arp_interval(struct device *d, |
571 | struct device_attribute *attr, | |
572 | char *buf) | |
b76cdba9 | 573 | { |
43cb76d9 | 574 | struct bonding *bond = to_bond(d); |
b76cdba9 | 575 | |
7bd46508 | 576 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
577 | } |
578 | ||
43cb76d9 GKH |
579 | static ssize_t bonding_store_arp_interval(struct device *d, |
580 | struct device_attribute *attr, | |
581 | const char *buf, size_t count) | |
b76cdba9 MW |
582 | { |
583 | int new_value, ret = count; | |
43cb76d9 | 584 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
585 | |
586 | if (sscanf(buf, "%d", &new_value) != 1) { | |
587 | printk(KERN_ERR DRV_NAME | |
588 | ": %s: no arp_interval value specified.\n", | |
589 | bond->dev->name); | |
590 | ret = -EINVAL; | |
591 | goto out; | |
592 | } | |
593 | if (new_value < 0) { | |
594 | printk(KERN_ERR DRV_NAME | |
595 | ": %s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", | |
596 | bond->dev->name, new_value, INT_MAX); | |
597 | ret = -EINVAL; | |
598 | goto out; | |
599 | } | |
600 | ||
601 | printk(KERN_INFO DRV_NAME | |
602 | ": %s: Setting ARP monitoring interval to %d.\n", | |
603 | bond->dev->name, new_value); | |
604 | bond->params.arp_interval = new_value; | |
6cf3f41e JV |
605 | if (bond->params.arp_interval) |
606 | bond->dev->priv_flags |= IFF_MASTER_ARPMON; | |
b76cdba9 MW |
607 | if (bond->params.miimon) { |
608 | printk(KERN_INFO DRV_NAME | |
609 | ": %s: ARP monitoring cannot be used with MII monitoring. " | |
610 | "%s Disabling MII monitoring.\n", | |
611 | bond->dev->name, bond->dev->name); | |
612 | bond->params.miimon = 0; | |
1b76b316 JV |
613 | if (delayed_work_pending(&bond->mii_work)) { |
614 | cancel_delayed_work(&bond->mii_work); | |
615 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
616 | } |
617 | } | |
618 | if (!bond->params.arp_targets[0]) { | |
619 | printk(KERN_INFO DRV_NAME | |
620 | ": %s: ARP monitoring has been set up, " | |
621 | "but no ARP targets have been specified.\n", | |
622 | bond->dev->name); | |
623 | } | |
624 | if (bond->dev->flags & IFF_UP) { | |
625 | /* If the interface is up, we may need to fire off | |
626 | * the ARP timer. If the interface is down, the | |
627 | * timer will get fired off when the open function | |
628 | * is called. | |
629 | */ | |
1b76b316 JV |
630 | if (!delayed_work_pending(&bond->arp_work)) { |
631 | if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) | |
632 | INIT_DELAYED_WORK(&bond->arp_work, | |
633 | bond_activebackup_arp_mon); | |
634 | else | |
635 | INIT_DELAYED_WORK(&bond->arp_work, | |
636 | bond_loadbalance_arp_mon); | |
637 | ||
638 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
b76cdba9 MW |
639 | } |
640 | } | |
641 | ||
642 | out: | |
643 | return ret; | |
644 | } | |
43cb76d9 | 645 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR , bonding_show_arp_interval, bonding_store_arp_interval); |
b76cdba9 MW |
646 | |
647 | /* | |
648 | * Show and set the arp targets. | |
649 | */ | |
43cb76d9 GKH |
650 | static ssize_t bonding_show_arp_targets(struct device *d, |
651 | struct device_attribute *attr, | |
652 | char *buf) | |
b76cdba9 MW |
653 | { |
654 | int i, res = 0; | |
43cb76d9 | 655 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
656 | |
657 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
658 | if (bond->params.arp_targets[i]) | |
63779436 HH |
659 | res += sprintf(buf + res, "%pI4 ", |
660 | &bond->params.arp_targets[i]); | |
b76cdba9 | 661 | } |
1dcdcd69 WF |
662 | if (res) |
663 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
664 | return res; |
665 | } | |
666 | ||
43cb76d9 GKH |
667 | static ssize_t bonding_store_arp_targets(struct device *d, |
668 | struct device_attribute *attr, | |
669 | const char *buf, size_t count) | |
b76cdba9 | 670 | { |
d3bb52b0 | 671 | __be32 newtarget; |
b76cdba9 | 672 | int i = 0, done = 0, ret = count; |
43cb76d9 | 673 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 674 | __be32 *targets; |
b76cdba9 MW |
675 | |
676 | targets = bond->params.arp_targets; | |
677 | newtarget = in_aton(buf + 1); | |
678 | /* look for adds */ | |
679 | if (buf[0] == '+') { | |
d3bb52b0 | 680 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
b76cdba9 | 681 | printk(KERN_ERR DRV_NAME |
63779436 HH |
682 | ": %s: invalid ARP target %pI4 specified for addition\n", |
683 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
684 | ret = -EINVAL; |
685 | goto out; | |
686 | } | |
687 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 688 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 MW |
689 | if (targets[i] == newtarget) { /* duplicate */ |
690 | printk(KERN_ERR DRV_NAME | |
63779436 HH |
691 | ": %s: ARP target %pI4 is already present\n", |
692 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
693 | ret = -EINVAL; |
694 | goto out; | |
695 | } | |
5a31bec0 | 696 | if (targets[i] == 0) { |
b76cdba9 | 697 | printk(KERN_INFO DRV_NAME |
63779436 HH |
698 | ": %s: adding ARP target %pI4.\n", |
699 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
700 | done = 1; |
701 | targets[i] = newtarget; | |
702 | } | |
703 | } | |
704 | if (!done) { | |
705 | printk(KERN_ERR DRV_NAME | |
706 | ": %s: ARP target table is full!\n", | |
707 | bond->dev->name); | |
708 | ret = -EINVAL; | |
709 | goto out; | |
710 | } | |
711 | ||
712 | } | |
713 | else if (buf[0] == '-') { | |
d3bb52b0 | 714 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
b76cdba9 | 715 | printk(KERN_ERR DRV_NAME |
63779436 HH |
716 | ": %s: invalid ARP target %pI4 specified for removal\n", |
717 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
718 | ret = -EINVAL; |
719 | goto out; | |
720 | } | |
721 | ||
5a31bec0 | 722 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 723 | if (targets[i] == newtarget) { |
5a31bec0 | 724 | int j; |
b76cdba9 | 725 | printk(KERN_INFO DRV_NAME |
63779436 HH |
726 | ": %s: removing ARP target %pI4.\n", |
727 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
728 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
729 | targets[j] = targets[j+1]; | |
730 | ||
731 | targets[j] = 0; | |
b76cdba9 MW |
732 | done = 1; |
733 | } | |
734 | } | |
735 | if (!done) { | |
736 | printk(KERN_INFO DRV_NAME | |
63779436 HH |
737 | ": %s: unable to remove nonexistent ARP target %pI4.\n", |
738 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
739 | ret = -EINVAL; |
740 | goto out; | |
741 | } | |
742 | } | |
743 | else { | |
744 | printk(KERN_ERR DRV_NAME ": no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", | |
745 | bond->dev->name); | |
746 | ret = -EPERM; | |
747 | goto out; | |
748 | } | |
749 | ||
750 | out: | |
751 | return ret; | |
752 | } | |
43cb76d9 | 753 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
754 | |
755 | /* | |
756 | * Show and set the up and down delays. These must be multiples of the | |
757 | * MII monitoring value, and are stored internally as the multiplier. | |
758 | * Thus, we must translate to MS for the real world. | |
759 | */ | |
43cb76d9 GKH |
760 | static ssize_t bonding_show_downdelay(struct device *d, |
761 | struct device_attribute *attr, | |
762 | char *buf) | |
b76cdba9 | 763 | { |
43cb76d9 | 764 | struct bonding *bond = to_bond(d); |
b76cdba9 | 765 | |
7bd46508 | 766 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
767 | } |
768 | ||
43cb76d9 GKH |
769 | static ssize_t bonding_store_downdelay(struct device *d, |
770 | struct device_attribute *attr, | |
771 | const char *buf, size_t count) | |
b76cdba9 MW |
772 | { |
773 | int new_value, ret = count; | |
43cb76d9 | 774 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
775 | |
776 | if (!(bond->params.miimon)) { | |
777 | printk(KERN_ERR DRV_NAME | |
778 | ": %s: Unable to set down delay as MII monitoring is disabled\n", | |
779 | bond->dev->name); | |
780 | ret = -EPERM; | |
781 | goto out; | |
782 | } | |
783 | ||
784 | if (sscanf(buf, "%d", &new_value) != 1) { | |
785 | printk(KERN_ERR DRV_NAME | |
786 | ": %s: no down delay value specified.\n", | |
787 | bond->dev->name); | |
788 | ret = -EINVAL; | |
789 | goto out; | |
790 | } | |
791 | if (new_value < 0) { | |
792 | printk(KERN_ERR DRV_NAME | |
793 | ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n", | |
794 | bond->dev->name, new_value, 1, INT_MAX); | |
795 | ret = -EINVAL; | |
796 | goto out; | |
797 | } else { | |
798 | if ((new_value % bond->params.miimon) != 0) { | |
799 | printk(KERN_WARNING DRV_NAME | |
800 | ": %s: Warning: down delay (%d) is not a multiple " | |
801 | "of miimon (%d), delay rounded to %d ms\n", | |
802 | bond->dev->name, new_value, bond->params.miimon, | |
803 | (new_value / bond->params.miimon) * | |
804 | bond->params.miimon); | |
805 | } | |
806 | bond->params.downdelay = new_value / bond->params.miimon; | |
807 | printk(KERN_INFO DRV_NAME ": %s: Setting down delay to %d.\n", | |
808 | bond->dev->name, bond->params.downdelay * bond->params.miimon); | |
809 | ||
810 | } | |
811 | ||
812 | out: | |
813 | return ret; | |
814 | } | |
43cb76d9 | 815 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR , bonding_show_downdelay, bonding_store_downdelay); |
b76cdba9 | 816 | |
43cb76d9 GKH |
817 | static ssize_t bonding_show_updelay(struct device *d, |
818 | struct device_attribute *attr, | |
819 | char *buf) | |
b76cdba9 | 820 | { |
43cb76d9 | 821 | struct bonding *bond = to_bond(d); |
b76cdba9 | 822 | |
7bd46508 | 823 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
824 | |
825 | } | |
826 | ||
43cb76d9 GKH |
827 | static ssize_t bonding_store_updelay(struct device *d, |
828 | struct device_attribute *attr, | |
829 | const char *buf, size_t count) | |
b76cdba9 MW |
830 | { |
831 | int new_value, ret = count; | |
43cb76d9 | 832 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
833 | |
834 | if (!(bond->params.miimon)) { | |
835 | printk(KERN_ERR DRV_NAME | |
836 | ": %s: Unable to set up delay as MII monitoring is disabled\n", | |
837 | bond->dev->name); | |
838 | ret = -EPERM; | |
839 | goto out; | |
840 | } | |
841 | ||
842 | if (sscanf(buf, "%d", &new_value) != 1) { | |
843 | printk(KERN_ERR DRV_NAME | |
844 | ": %s: no up delay value specified.\n", | |
845 | bond->dev->name); | |
846 | ret = -EINVAL; | |
847 | goto out; | |
848 | } | |
849 | if (new_value < 0) { | |
850 | printk(KERN_ERR DRV_NAME | |
851 | ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n", | |
852 | bond->dev->name, new_value, 1, INT_MAX); | |
853 | ret = -EINVAL; | |
854 | goto out; | |
855 | } else { | |
856 | if ((new_value % bond->params.miimon) != 0) { | |
857 | printk(KERN_WARNING DRV_NAME | |
858 | ": %s: Warning: up delay (%d) is not a multiple " | |
859 | "of miimon (%d), updelay rounded to %d ms\n", | |
860 | bond->dev->name, new_value, bond->params.miimon, | |
861 | (new_value / bond->params.miimon) * | |
862 | bond->params.miimon); | |
863 | } | |
864 | bond->params.updelay = new_value / bond->params.miimon; | |
865 | printk(KERN_INFO DRV_NAME ": %s: Setting up delay to %d.\n", | |
866 | bond->dev->name, bond->params.updelay * bond->params.miimon); | |
867 | ||
868 | } | |
869 | ||
870 | out: | |
871 | return ret; | |
872 | } | |
43cb76d9 | 873 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR , bonding_show_updelay, bonding_store_updelay); |
b76cdba9 MW |
874 | |
875 | /* | |
876 | * Show and set the LACP interval. Interface must be down, and the mode | |
877 | * must be set to 802.3ad mode. | |
878 | */ | |
43cb76d9 GKH |
879 | static ssize_t bonding_show_lacp(struct device *d, |
880 | struct device_attribute *attr, | |
881 | char *buf) | |
b76cdba9 | 882 | { |
43cb76d9 | 883 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
884 | |
885 | return sprintf(buf, "%s %d\n", | |
886 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 887 | bond->params.lacp_fast); |
b76cdba9 MW |
888 | } |
889 | ||
43cb76d9 GKH |
890 | static ssize_t bonding_store_lacp(struct device *d, |
891 | struct device_attribute *attr, | |
892 | const char *buf, size_t count) | |
b76cdba9 MW |
893 | { |
894 | int new_value, ret = count; | |
43cb76d9 | 895 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
896 | |
897 | if (bond->dev->flags & IFF_UP) { | |
898 | printk(KERN_ERR DRV_NAME | |
899 | ": %s: Unable to update LACP rate because interface is up.\n", | |
900 | bond->dev->name); | |
901 | ret = -EPERM; | |
902 | goto out; | |
903 | } | |
904 | ||
905 | if (bond->params.mode != BOND_MODE_8023AD) { | |
906 | printk(KERN_ERR DRV_NAME | |
907 | ": %s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", | |
908 | bond->dev->name); | |
909 | ret = -EPERM; | |
910 | goto out; | |
911 | } | |
912 | ||
ece95f7f | 913 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
914 | |
915 | if ((new_value == 1) || (new_value == 0)) { | |
916 | bond->params.lacp_fast = new_value; | |
917 | printk(KERN_INFO DRV_NAME | |
918 | ": %s: Setting LACP rate to %s (%d).\n", | |
919 | bond->dev->name, bond_lacp_tbl[new_value].modename, new_value); | |
920 | } else { | |
921 | printk(KERN_ERR DRV_NAME | |
922 | ": %s: Ignoring invalid LACP rate value %.*s.\n", | |
923 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
924 | ret = -EINVAL; | |
925 | } | |
926 | out: | |
927 | return ret; | |
928 | } | |
43cb76d9 | 929 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, bonding_show_lacp, bonding_store_lacp); |
b76cdba9 | 930 | |
fd989c83 JV |
931 | static ssize_t bonding_show_ad_select(struct device *d, |
932 | struct device_attribute *attr, | |
933 | char *buf) | |
934 | { | |
935 | struct bonding *bond = to_bond(d); | |
936 | ||
937 | return sprintf(buf, "%s %d\n", | |
938 | ad_select_tbl[bond->params.ad_select].modename, | |
939 | bond->params.ad_select); | |
940 | } | |
941 | ||
942 | ||
943 | static ssize_t bonding_store_ad_select(struct device *d, | |
944 | struct device_attribute *attr, | |
945 | const char *buf, size_t count) | |
946 | { | |
947 | int new_value, ret = count; | |
948 | struct bonding *bond = to_bond(d); | |
949 | ||
950 | if (bond->dev->flags & IFF_UP) { | |
951 | printk(KERN_ERR DRV_NAME | |
952 | ": %s: Unable to update ad_select because interface " | |
953 | "is up.\n", bond->dev->name); | |
954 | ret = -EPERM; | |
955 | goto out; | |
956 | } | |
957 | ||
958 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
959 | ||
960 | if (new_value != -1) { | |
961 | bond->params.ad_select = new_value; | |
962 | printk(KERN_INFO DRV_NAME | |
963 | ": %s: Setting ad_select to %s (%d).\n", | |
964 | bond->dev->name, ad_select_tbl[new_value].modename, | |
965 | new_value); | |
966 | } else { | |
967 | printk(KERN_ERR DRV_NAME | |
968 | ": %s: Ignoring invalid ad_select value %.*s.\n", | |
969 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
970 | ret = -EINVAL; | |
971 | } | |
972 | out: | |
973 | return ret; | |
974 | } | |
975 | ||
976 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, bonding_show_ad_select, bonding_store_ad_select); | |
977 | ||
7893b249 MS |
978 | /* |
979 | * Show and set the number of grat ARP to send after a failover event. | |
980 | */ | |
981 | static ssize_t bonding_show_n_grat_arp(struct device *d, | |
982 | struct device_attribute *attr, | |
983 | char *buf) | |
984 | { | |
985 | struct bonding *bond = to_bond(d); | |
986 | ||
987 | return sprintf(buf, "%d\n", bond->params.num_grat_arp); | |
988 | } | |
989 | ||
990 | static ssize_t bonding_store_n_grat_arp(struct device *d, | |
991 | struct device_attribute *attr, | |
992 | const char *buf, size_t count) | |
993 | { | |
994 | int new_value, ret = count; | |
995 | struct bonding *bond = to_bond(d); | |
996 | ||
997 | if (sscanf(buf, "%d", &new_value) != 1) { | |
998 | printk(KERN_ERR DRV_NAME | |
999 | ": %s: no num_grat_arp value specified.\n", | |
1000 | bond->dev->name); | |
1001 | ret = -EINVAL; | |
1002 | goto out; | |
1003 | } | |
1004 | if (new_value < 0 || new_value > 255) { | |
1005 | printk(KERN_ERR DRV_NAME | |
1006 | ": %s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n", | |
1007 | bond->dev->name, new_value); | |
1008 | ret = -EINVAL; | |
1009 | goto out; | |
1010 | } else { | |
1011 | bond->params.num_grat_arp = new_value; | |
1012 | } | |
1013 | out: | |
1014 | return ret; | |
1015 | } | |
1016 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, bonding_show_n_grat_arp, bonding_store_n_grat_arp); | |
305d552a BH |
1017 | |
1018 | /* | |
1019 | * Show and set the number of unsolicted NA's to send after a failover event. | |
1020 | */ | |
1021 | static ssize_t bonding_show_n_unsol_na(struct device *d, | |
1022 | struct device_attribute *attr, | |
1023 | char *buf) | |
1024 | { | |
1025 | struct bonding *bond = to_bond(d); | |
1026 | ||
1027 | return sprintf(buf, "%d\n", bond->params.num_unsol_na); | |
1028 | } | |
1029 | ||
1030 | static ssize_t bonding_store_n_unsol_na(struct device *d, | |
1031 | struct device_attribute *attr, | |
1032 | const char *buf, size_t count) | |
1033 | { | |
1034 | int new_value, ret = count; | |
1035 | struct bonding *bond = to_bond(d); | |
1036 | ||
1037 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1038 | printk(KERN_ERR DRV_NAME | |
1039 | ": %s: no num_unsol_na value specified.\n", | |
1040 | bond->dev->name); | |
1041 | ret = -EINVAL; | |
1042 | goto out; | |
1043 | } | |
1044 | if (new_value < 0 || new_value > 255) { | |
1045 | printk(KERN_ERR DRV_NAME | |
1046 | ": %s: Invalid num_unsol_na value %d not in range 0-255; rejected.\n", | |
1047 | bond->dev->name, new_value); | |
1048 | ret = -EINVAL; | |
1049 | goto out; | |
1050 | } else { | |
1051 | bond->params.num_unsol_na = new_value; | |
1052 | } | |
1053 | out: | |
1054 | return ret; | |
1055 | } | |
1056 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, bonding_show_n_unsol_na, bonding_store_n_unsol_na); | |
1057 | ||
b76cdba9 MW |
1058 | /* |
1059 | * Show and set the MII monitor interval. There are two tricky bits | |
1060 | * here. First, if MII monitoring is activated, then we must disable | |
1061 | * ARP monitoring. Second, if the timer isn't running, we must | |
1062 | * start it. | |
1063 | */ | |
43cb76d9 GKH |
1064 | static ssize_t bonding_show_miimon(struct device *d, |
1065 | struct device_attribute *attr, | |
1066 | char *buf) | |
b76cdba9 | 1067 | { |
43cb76d9 | 1068 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1069 | |
7bd46508 | 1070 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
1071 | } |
1072 | ||
43cb76d9 GKH |
1073 | static ssize_t bonding_store_miimon(struct device *d, |
1074 | struct device_attribute *attr, | |
1075 | const char *buf, size_t count) | |
b76cdba9 MW |
1076 | { |
1077 | int new_value, ret = count; | |
43cb76d9 | 1078 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1079 | |
1080 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1081 | printk(KERN_ERR DRV_NAME | |
1082 | ": %s: no miimon value specified.\n", | |
1083 | bond->dev->name); | |
1084 | ret = -EINVAL; | |
1085 | goto out; | |
1086 | } | |
1087 | if (new_value < 0) { | |
1088 | printk(KERN_ERR DRV_NAME | |
1089 | ": %s: Invalid miimon value %d not in range %d-%d; rejected.\n", | |
1090 | bond->dev->name, new_value, 1, INT_MAX); | |
1091 | ret = -EINVAL; | |
1092 | goto out; | |
1093 | } else { | |
1094 | printk(KERN_INFO DRV_NAME | |
1095 | ": %s: Setting MII monitoring interval to %d.\n", | |
1096 | bond->dev->name, new_value); | |
1097 | bond->params.miimon = new_value; | |
1098 | if(bond->params.updelay) | |
1099 | printk(KERN_INFO DRV_NAME | |
1100 | ": %s: Note: Updating updelay (to %d) " | |
1101 | "since it is a multiple of the miimon value.\n", | |
1102 | bond->dev->name, | |
1103 | bond->params.updelay * bond->params.miimon); | |
1104 | if(bond->params.downdelay) | |
1105 | printk(KERN_INFO DRV_NAME | |
1106 | ": %s: Note: Updating downdelay (to %d) " | |
1107 | "since it is a multiple of the miimon value.\n", | |
1108 | bond->dev->name, | |
1109 | bond->params.downdelay * bond->params.miimon); | |
1110 | if (bond->params.arp_interval) { | |
1111 | printk(KERN_INFO DRV_NAME | |
1112 | ": %s: MII monitoring cannot be used with " | |
1113 | "ARP monitoring. Disabling ARP monitoring...\n", | |
1114 | bond->dev->name); | |
1115 | bond->params.arp_interval = 0; | |
6cf3f41e | 1116 | bond->dev->priv_flags &= ~IFF_MASTER_ARPMON; |
f5b2b966 JV |
1117 | if (bond->params.arp_validate) { |
1118 | bond_unregister_arp(bond); | |
1119 | bond->params.arp_validate = | |
1120 | BOND_ARP_VALIDATE_NONE; | |
1121 | } | |
1b76b316 JV |
1122 | if (delayed_work_pending(&bond->arp_work)) { |
1123 | cancel_delayed_work(&bond->arp_work); | |
1124 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
1125 | } |
1126 | } | |
1127 | ||
1128 | if (bond->dev->flags & IFF_UP) { | |
1129 | /* If the interface is up, we may need to fire off | |
1130 | * the MII timer. If the interface is down, the | |
1131 | * timer will get fired off when the open function | |
1132 | * is called. | |
1133 | */ | |
1b76b316 JV |
1134 | if (!delayed_work_pending(&bond->mii_work)) { |
1135 | INIT_DELAYED_WORK(&bond->mii_work, | |
1136 | bond_mii_monitor); | |
1137 | queue_delayed_work(bond->wq, | |
1138 | &bond->mii_work, 0); | |
b76cdba9 MW |
1139 | } |
1140 | } | |
1141 | } | |
1142 | out: | |
1143 | return ret; | |
1144 | } | |
43cb76d9 | 1145 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, bonding_show_miimon, bonding_store_miimon); |
b76cdba9 MW |
1146 | |
1147 | /* | |
1148 | * Show and set the primary slave. The store function is much | |
1149 | * simpler than bonding_store_slaves function because it only needs to | |
1150 | * handle one interface name. | |
1151 | * The bond must be a mode that supports a primary for this be | |
1152 | * set. | |
1153 | */ | |
43cb76d9 GKH |
1154 | static ssize_t bonding_show_primary(struct device *d, |
1155 | struct device_attribute *attr, | |
1156 | char *buf) | |
b76cdba9 MW |
1157 | { |
1158 | int count = 0; | |
43cb76d9 | 1159 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1160 | |
1161 | if (bond->primary_slave) | |
7bd46508 | 1162 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1163 | |
1164 | return count; | |
1165 | } | |
1166 | ||
43cb76d9 GKH |
1167 | static ssize_t bonding_store_primary(struct device *d, |
1168 | struct device_attribute *attr, | |
1169 | const char *buf, size_t count) | |
b76cdba9 MW |
1170 | { |
1171 | int i; | |
1172 | struct slave *slave; | |
43cb76d9 | 1173 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1174 | |
496a60cd EB |
1175 | if (!rtnl_trylock()) |
1176 | return restart_syscall(); | |
e934dd78 JV |
1177 | read_lock(&bond->lock); |
1178 | write_lock_bh(&bond->curr_slave_lock); | |
1179 | ||
b76cdba9 MW |
1180 | if (!USES_PRIMARY(bond->params.mode)) { |
1181 | printk(KERN_INFO DRV_NAME | |
1182 | ": %s: Unable to set primary slave; %s is in mode %d\n", | |
1183 | bond->dev->name, bond->dev->name, bond->params.mode); | |
1184 | } else { | |
1185 | bond_for_each_slave(bond, slave, i) { | |
1186 | if (strnicmp | |
1187 | (slave->dev->name, buf, | |
1188 | strlen(slave->dev->name)) == 0) { | |
1189 | printk(KERN_INFO DRV_NAME | |
1190 | ": %s: Setting %s as primary slave.\n", | |
1191 | bond->dev->name, slave->dev->name); | |
1192 | bond->primary_slave = slave; | |
1193 | bond_select_active_slave(bond); | |
1194 | goto out; | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | /* if we got here, then we didn't match the name of any slave */ | |
1199 | ||
1200 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
1201 | printk(KERN_INFO DRV_NAME | |
1202 | ": %s: Setting primary slave to None.\n", | |
1203 | bond->dev->name); | |
3418db7c | 1204 | bond->primary_slave = NULL; |
b76cdba9 MW |
1205 | bond_select_active_slave(bond); |
1206 | } else { | |
1207 | printk(KERN_INFO DRV_NAME | |
1208 | ": %s: Unable to set %.*s as primary slave as it is not a slave.\n", | |
1209 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
1210 | } | |
1211 | } | |
1212 | out: | |
e934dd78 JV |
1213 | write_unlock_bh(&bond->curr_slave_lock); |
1214 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1215 | rtnl_unlock(); |
1216 | ||
b76cdba9 MW |
1217 | return count; |
1218 | } | |
43cb76d9 | 1219 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, bonding_show_primary, bonding_store_primary); |
b76cdba9 MW |
1220 | |
1221 | /* | |
1222 | * Show and set the use_carrier flag. | |
1223 | */ | |
43cb76d9 GKH |
1224 | static ssize_t bonding_show_carrier(struct device *d, |
1225 | struct device_attribute *attr, | |
1226 | char *buf) | |
b76cdba9 | 1227 | { |
43cb76d9 | 1228 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1229 | |
7bd46508 | 1230 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1231 | } |
1232 | ||
43cb76d9 GKH |
1233 | static ssize_t bonding_store_carrier(struct device *d, |
1234 | struct device_attribute *attr, | |
1235 | const char *buf, size_t count) | |
b76cdba9 MW |
1236 | { |
1237 | int new_value, ret = count; | |
43cb76d9 | 1238 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1239 | |
1240 | ||
1241 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1242 | printk(KERN_ERR DRV_NAME | |
1243 | ": %s: no use_carrier value specified.\n", | |
1244 | bond->dev->name); | |
1245 | ret = -EINVAL; | |
1246 | goto out; | |
1247 | } | |
1248 | if ((new_value == 0) || (new_value == 1)) { | |
1249 | bond->params.use_carrier = new_value; | |
1250 | printk(KERN_INFO DRV_NAME ": %s: Setting use_carrier to %d.\n", | |
1251 | bond->dev->name, new_value); | |
1252 | } else { | |
1253 | printk(KERN_INFO DRV_NAME | |
1254 | ": %s: Ignoring invalid use_carrier value %d.\n", | |
1255 | bond->dev->name, new_value); | |
1256 | } | |
1257 | out: | |
1258 | return count; | |
1259 | } | |
43cb76d9 | 1260 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, bonding_show_carrier, bonding_store_carrier); |
b76cdba9 MW |
1261 | |
1262 | ||
1263 | /* | |
1264 | * Show and set currently active_slave. | |
1265 | */ | |
43cb76d9 GKH |
1266 | static ssize_t bonding_show_active_slave(struct device *d, |
1267 | struct device_attribute *attr, | |
1268 | char *buf) | |
b76cdba9 MW |
1269 | { |
1270 | struct slave *curr; | |
43cb76d9 | 1271 | struct bonding *bond = to_bond(d); |
16cd0160 | 1272 | int count = 0; |
b76cdba9 | 1273 | |
b76cdba9 MW |
1274 | read_lock(&bond->curr_slave_lock); |
1275 | curr = bond->curr_active_slave; | |
1276 | read_unlock(&bond->curr_slave_lock); | |
1277 | ||
1278 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1279 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1280 | return count; |
1281 | } | |
1282 | ||
43cb76d9 GKH |
1283 | static ssize_t bonding_store_active_slave(struct device *d, |
1284 | struct device_attribute *attr, | |
1285 | const char *buf, size_t count) | |
b76cdba9 MW |
1286 | { |
1287 | int i; | |
1288 | struct slave *slave; | |
1289 | struct slave *old_active = NULL; | |
1290 | struct slave *new_active = NULL; | |
43cb76d9 | 1291 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1292 | |
496a60cd EB |
1293 | if (!rtnl_trylock()) |
1294 | return restart_syscall(); | |
e934dd78 JV |
1295 | read_lock(&bond->lock); |
1296 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1297 | |
b76cdba9 MW |
1298 | if (!USES_PRIMARY(bond->params.mode)) { |
1299 | printk(KERN_INFO DRV_NAME | |
1300 | ": %s: Unable to change active slave; %s is in mode %d\n", | |
1301 | bond->dev->name, bond->dev->name, bond->params.mode); | |
1302 | } else { | |
1303 | bond_for_each_slave(bond, slave, i) { | |
1304 | if (strnicmp | |
1305 | (slave->dev->name, buf, | |
1306 | strlen(slave->dev->name)) == 0) { | |
1307 | old_active = bond->curr_active_slave; | |
1308 | new_active = slave; | |
a50d8de2 | 1309 | if (new_active == old_active) { |
b76cdba9 MW |
1310 | /* do nothing */ |
1311 | printk(KERN_INFO DRV_NAME | |
1312 | ": %s: %s is already the current active slave.\n", | |
1313 | bond->dev->name, slave->dev->name); | |
1314 | goto out; | |
1315 | } | |
1316 | else { | |
1317 | if ((new_active) && | |
1318 | (old_active) && | |
1319 | (new_active->link == BOND_LINK_UP) && | |
1320 | IS_UP(new_active->dev)) { | |
1321 | printk(KERN_INFO DRV_NAME | |
1322 | ": %s: Setting %s as active slave.\n", | |
1323 | bond->dev->name, slave->dev->name); | |
1324 | bond_change_active_slave(bond, new_active); | |
1325 | } | |
1326 | else { | |
1327 | printk(KERN_INFO DRV_NAME | |
1328 | ": %s: Could not set %s as active slave; " | |
1329 | "either %s is down or the link is down.\n", | |
1330 | bond->dev->name, slave->dev->name, | |
1331 | slave->dev->name); | |
1332 | } | |
1333 | goto out; | |
1334 | } | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | /* if we got here, then we didn't match the name of any slave */ | |
1339 | ||
1340 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
1341 | printk(KERN_INFO DRV_NAME | |
1342 | ": %s: Setting active slave to None.\n", | |
1343 | bond->dev->name); | |
3418db7c | 1344 | bond->primary_slave = NULL; |
b76cdba9 MW |
1345 | bond_select_active_slave(bond); |
1346 | } else { | |
1347 | printk(KERN_INFO DRV_NAME | |
1348 | ": %s: Unable to set %.*s as active slave as it is not a slave.\n", | |
1349 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
1350 | } | |
1351 | } | |
1352 | out: | |
e934dd78 JV |
1353 | write_unlock_bh(&bond->curr_slave_lock); |
1354 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1355 | rtnl_unlock(); |
1356 | ||
b76cdba9 MW |
1357 | return count; |
1358 | ||
1359 | } | |
43cb76d9 | 1360 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, bonding_show_active_slave, bonding_store_active_slave); |
b76cdba9 MW |
1361 | |
1362 | ||
1363 | /* | |
1364 | * Show link status of the bond interface. | |
1365 | */ | |
43cb76d9 GKH |
1366 | static ssize_t bonding_show_mii_status(struct device *d, |
1367 | struct device_attribute *attr, | |
1368 | char *buf) | |
b76cdba9 MW |
1369 | { |
1370 | struct slave *curr; | |
43cb76d9 | 1371 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1372 | |
1373 | read_lock(&bond->curr_slave_lock); | |
1374 | curr = bond->curr_active_slave; | |
1375 | read_unlock(&bond->curr_slave_lock); | |
1376 | ||
7bd46508 | 1377 | return sprintf(buf, "%s\n", (curr) ? "up" : "down"); |
b76cdba9 | 1378 | } |
43cb76d9 | 1379 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 MW |
1380 | |
1381 | ||
1382 | /* | |
1383 | * Show current 802.3ad aggregator ID. | |
1384 | */ | |
43cb76d9 GKH |
1385 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1386 | struct device_attribute *attr, | |
1387 | char *buf) | |
b76cdba9 MW |
1388 | { |
1389 | int count = 0; | |
43cb76d9 | 1390 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1391 | |
1392 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1393 | struct ad_info ad_info; | |
7bd46508 | 1394 | count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1395 | } |
b76cdba9 MW |
1396 | |
1397 | return count; | |
1398 | } | |
43cb76d9 | 1399 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1400 | |
1401 | ||
1402 | /* | |
1403 | * Show number of active 802.3ad ports. | |
1404 | */ | |
43cb76d9 GKH |
1405 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1406 | struct device_attribute *attr, | |
1407 | char *buf) | |
b76cdba9 MW |
1408 | { |
1409 | int count = 0; | |
43cb76d9 | 1410 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1411 | |
1412 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1413 | struct ad_info ad_info; | |
7bd46508 | 1414 | count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0: ad_info.ports); |
b76cdba9 | 1415 | } |
b76cdba9 MW |
1416 | |
1417 | return count; | |
1418 | } | |
43cb76d9 | 1419 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1420 | |
1421 | ||
1422 | /* | |
1423 | * Show current 802.3ad actor key. | |
1424 | */ | |
43cb76d9 GKH |
1425 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1426 | struct device_attribute *attr, | |
1427 | char *buf) | |
b76cdba9 MW |
1428 | { |
1429 | int count = 0; | |
43cb76d9 | 1430 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1431 | |
1432 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1433 | struct ad_info ad_info; | |
7bd46508 | 1434 | count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.actor_key); |
b76cdba9 | 1435 | } |
b76cdba9 MW |
1436 | |
1437 | return count; | |
1438 | } | |
43cb76d9 | 1439 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1440 | |
1441 | ||
1442 | /* | |
1443 | * Show current 802.3ad partner key. | |
1444 | */ | |
43cb76d9 GKH |
1445 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1446 | struct device_attribute *attr, | |
1447 | char *buf) | |
b76cdba9 MW |
1448 | { |
1449 | int count = 0; | |
43cb76d9 | 1450 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1451 | |
1452 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1453 | struct ad_info ad_info; | |
7bd46508 | 1454 | count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.partner_key); |
b76cdba9 | 1455 | } |
b76cdba9 MW |
1456 | |
1457 | return count; | |
1458 | } | |
43cb76d9 | 1459 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1460 | |
1461 | ||
1462 | /* | |
1463 | * Show current 802.3ad partner mac. | |
1464 | */ | |
43cb76d9 GKH |
1465 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1466 | struct device_attribute *attr, | |
1467 | char *buf) | |
b76cdba9 MW |
1468 | { |
1469 | int count = 0; | |
43cb76d9 | 1470 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1471 | |
1472 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1473 | struct ad_info ad_info; | |
1474 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) { | |
e174961c | 1475 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 MW |
1476 | } |
1477 | } | |
b76cdba9 MW |
1478 | |
1479 | return count; | |
1480 | } | |
43cb76d9 | 1481 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 MW |
1482 | |
1483 | ||
1484 | ||
1485 | static struct attribute *per_bond_attrs[] = { | |
43cb76d9 GKH |
1486 | &dev_attr_slaves.attr, |
1487 | &dev_attr_mode.attr, | |
dd957c57 | 1488 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1489 | &dev_attr_arp_validate.attr, |
1490 | &dev_attr_arp_interval.attr, | |
1491 | &dev_attr_arp_ip_target.attr, | |
1492 | &dev_attr_downdelay.attr, | |
1493 | &dev_attr_updelay.attr, | |
1494 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1495 | &dev_attr_ad_select.attr, |
43cb76d9 | 1496 | &dev_attr_xmit_hash_policy.attr, |
7893b249 | 1497 | &dev_attr_num_grat_arp.attr, |
305d552a | 1498 | &dev_attr_num_unsol_na.attr, |
43cb76d9 GKH |
1499 | &dev_attr_miimon.attr, |
1500 | &dev_attr_primary.attr, | |
1501 | &dev_attr_use_carrier.attr, | |
1502 | &dev_attr_active_slave.attr, | |
1503 | &dev_attr_mii_status.attr, | |
1504 | &dev_attr_ad_aggregator.attr, | |
1505 | &dev_attr_ad_num_ports.attr, | |
1506 | &dev_attr_ad_actor_key.attr, | |
1507 | &dev_attr_ad_partner_key.attr, | |
1508 | &dev_attr_ad_partner_mac.attr, | |
b76cdba9 MW |
1509 | NULL, |
1510 | }; | |
1511 | ||
1512 | static struct attribute_group bonding_group = { | |
1513 | .name = "bonding", | |
1514 | .attrs = per_bond_attrs, | |
1515 | }; | |
1516 | ||
1517 | /* | |
1518 | * Initialize sysfs. This sets up the bonding_masters file in | |
1519 | * /sys/class/net. | |
1520 | */ | |
1521 | int bond_create_sysfs(void) | |
1522 | { | |
b8a9787e | 1523 | int ret; |
b76cdba9 | 1524 | |
b8a9787e | 1525 | ret = netdev_class_create_file(&class_attr_bonding_masters); |
877cbd36 JV |
1526 | /* |
1527 | * Permit multiple loads of the module by ignoring failures to | |
1528 | * create the bonding_masters sysfs file. Bonding devices | |
1529 | * created by second or subsequent loads of the module will | |
1530 | * not be listed in, or controllable by, bonding_masters, but | |
1531 | * will have the usual "bonding" sysfs directory. | |
1532 | * | |
1533 | * This is done to preserve backwards compatibility for | |
1534 | * initscripts/sysconfig, which load bonding multiple times to | |
1535 | * configure multiple bonding devices. | |
1536 | */ | |
1537 | if (ret == -EEXIST) { | |
38d2f38b SH |
1538 | /* Is someone being kinky and naming a device bonding_master? */ |
1539 | if (__dev_get_by_name(&init_net, | |
1540 | class_attr_bonding_masters.attr.name)) | |
1541 | printk(KERN_ERR | |
1542 | "network device named %s already exists in sysfs", | |
1543 | class_attr_bonding_masters.attr.name); | |
877cbd36 | 1544 | } |
b76cdba9 MW |
1545 | |
1546 | return ret; | |
1547 | ||
1548 | } | |
1549 | ||
1550 | /* | |
1551 | * Remove /sys/class/net/bonding_masters. | |
1552 | */ | |
1553 | void bond_destroy_sysfs(void) | |
1554 | { | |
b8a9787e | 1555 | netdev_class_remove_file(&class_attr_bonding_masters); |
b76cdba9 MW |
1556 | } |
1557 | ||
1558 | /* | |
1559 | * Initialize sysfs for each bond. This sets up and registers | |
1560 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1561 | */ | |
1562 | int bond_create_sysfs_entry(struct bonding *bond) | |
1563 | { | |
1564 | struct net_device *dev = bond->dev; | |
1565 | int err; | |
1566 | ||
43cb76d9 | 1567 | err = sysfs_create_group(&(dev->dev.kobj), &bonding_group); |
b76cdba9 MW |
1568 | if (err) { |
1569 | printk(KERN_EMERG "eek! didn't create group!\n"); | |
1570 | } | |
1571 | ||
1572 | if (expected_refcount < 1) | |
43cb76d9 | 1573 | expected_refcount = atomic_read(&bond->dev->dev.kobj.kref.refcount); |
b76cdba9 MW |
1574 | |
1575 | return err; | |
1576 | } | |
1577 | /* | |
1578 | * Remove sysfs entries for each bond. | |
1579 | */ | |
1580 | void bond_destroy_sysfs_entry(struct bonding *bond) | |
1581 | { | |
1582 | struct net_device *dev = bond->dev; | |
1583 | ||
43cb76d9 | 1584 | sysfs_remove_group(&(dev->dev.kobj), &bonding_group); |
b76cdba9 MW |
1585 | } |
1586 |