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 | 24 | #include <linux/device.h> |
d43c36dc | 25 | #include <linux/sched.h> |
b76cdba9 MW |
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> | |
5c5129b5 | 37 | #include <linux/etherdevice.h> |
881d966b | 38 | #include <net/net_namespace.h> |
b76cdba9 | 39 | |
b76cdba9 | 40 | #include "bonding.h" |
5a03cdb7 | 41 | |
3d632c3f | 42 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 43 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 44 | |
b76cdba9 MW |
45 | /* |
46 | * "show" function for the bond_masters attribute. | |
47 | * The class parameter is ignored. | |
48 | */ | |
b8843665 | 49 | static ssize_t bonding_show_bonds(struct class *cls, char *buf) |
b76cdba9 MW |
50 | { |
51 | int res = 0; | |
52 | struct bonding *bond; | |
53 | ||
7e083840 | 54 | rtnl_lock(); |
b76cdba9 MW |
55 | |
56 | list_for_each_entry(bond, &bond_dev_list, bond_list) { | |
57 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
58 | /* not enough space for another interface name */ | |
59 | if ((PAGE_SIZE - res) > 10) | |
60 | res = PAGE_SIZE - 10; | |
b8843665 | 61 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
62 | break; |
63 | } | |
b8843665 | 64 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 65 | } |
1dcdcd69 WF |
66 | if (res) |
67 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
68 | |
69 | rtnl_unlock(); | |
b76cdba9 MW |
70 | return res; |
71 | } | |
72 | ||
373500db SH |
73 | static struct net_device *bond_get_by_name(const char *ifname) |
74 | { | |
75 | struct bonding *bond; | |
76 | ||
77 | list_for_each_entry(bond, &bond_dev_list, bond_list) { | |
78 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) | |
79 | return bond->dev; | |
80 | } | |
81 | return NULL; | |
82 | } | |
83 | ||
b76cdba9 MW |
84 | /* |
85 | * "store" function for the bond_masters attribute. This is what | |
86 | * creates and deletes entire bonds. | |
87 | * | |
88 | * The class parameter is ignored. | |
89 | * | |
90 | */ | |
91 | ||
3d632c3f SH |
92 | static ssize_t bonding_store_bonds(struct class *cls, |
93 | const char *buffer, size_t count) | |
b76cdba9 MW |
94 | { |
95 | char command[IFNAMSIZ + 1] = {0, }; | |
96 | char *ifname; | |
027ea041 | 97 | int rv, res = count; |
b76cdba9 | 98 | |
b76cdba9 MW |
99 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
100 | ifname = command + 1; | |
101 | if ((strlen(command) <= 1) || | |
102 | !dev_valid_name(ifname)) | |
103 | goto err_no_cmd; | |
104 | ||
105 | if (command[0] == '+') { | |
3d632c3f | 106 | pr_info(DRV_NAME |
b76cdba9 | 107 | ": %s is being created...\n", ifname); |
d2991f75 | 108 | rv = bond_create(ifname); |
027ea041 | 109 | if (rv) { |
3d632c3f | 110 | pr_info(DRV_NAME ": Bond creation failed.\n"); |
027ea041 | 111 | res = rv; |
b76cdba9 | 112 | } |
373500db SH |
113 | } else if (command[0] == '-') { |
114 | struct net_device *bond_dev; | |
b76cdba9 | 115 | |
027ea041 | 116 | rtnl_lock(); |
373500db SH |
117 | bond_dev = bond_get_by_name(ifname); |
118 | if (bond_dev) { | |
119 | pr_info(DRV_NAME ": %s is being deleted...\n", | |
120 | ifname); | |
121 | unregister_netdevice(bond_dev); | |
122 | } else { | |
123 | pr_err(DRV_NAME ": unable to delete non-existent %s\n", | |
124 | ifname); | |
125 | res = -ENODEV; | |
126 | } | |
127 | rtnl_unlock(); | |
128 | } else | |
129 | goto err_no_cmd; | |
027ea041 | 130 | |
373500db SH |
131 | /* Always return either count or an error. If you return 0, you'll |
132 | * get called forever, which is bad. | |
133 | */ | |
134 | return res; | |
b76cdba9 MW |
135 | |
136 | err_no_cmd: | |
3d632c3f SH |
137 | pr_err(DRV_NAME ": no command found in bonding_masters." |
138 | " Use +ifname or -ifname.\n"); | |
c4ebc66a | 139 | return -EPERM; |
b76cdba9 | 140 | } |
373500db | 141 | |
b76cdba9 MW |
142 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
143 | static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO, | |
144 | bonding_show_bonds, bonding_store_bonds); | |
145 | ||
3d632c3f SH |
146 | int bond_create_slave_symlinks(struct net_device *master, |
147 | struct net_device *slave) | |
b76cdba9 MW |
148 | { |
149 | char linkname[IFNAMSIZ+7]; | |
150 | int ret = 0; | |
151 | ||
152 | /* first, create a link from the slave back to the master */ | |
43cb76d9 | 153 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
b76cdba9 MW |
154 | "master"); |
155 | if (ret) | |
156 | return ret; | |
157 | /* next, create a link from the master to the slave */ | |
3d632c3f | 158 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 159 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
b76cdba9 MW |
160 | linkname); |
161 | return ret; | |
162 | ||
163 | } | |
164 | ||
3d632c3f SH |
165 | void bond_destroy_slave_symlinks(struct net_device *master, |
166 | struct net_device *slave) | |
b76cdba9 MW |
167 | { |
168 | char linkname[IFNAMSIZ+7]; | |
169 | ||
43cb76d9 | 170 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
3d632c3f | 171 | sprintf(linkname, "slave_%s", slave->name); |
43cb76d9 | 172 | sysfs_remove_link(&(master->dev.kobj), linkname); |
b76cdba9 MW |
173 | } |
174 | ||
175 | ||
176 | /* | |
177 | * Show the slaves in the current bond. | |
178 | */ | |
43cb76d9 GKH |
179 | static ssize_t bonding_show_slaves(struct device *d, |
180 | struct device_attribute *attr, char *buf) | |
b76cdba9 MW |
181 | { |
182 | struct slave *slave; | |
183 | int i, res = 0; | |
43cb76d9 | 184 | struct bonding *bond = to_bond(d); |
b76cdba9 | 185 | |
6603a6f2 | 186 | read_lock(&bond->lock); |
b76cdba9 MW |
187 | bond_for_each_slave(bond, slave, i) { |
188 | if (res > (PAGE_SIZE - IFNAMSIZ)) { | |
189 | /* not enough space for another interface name */ | |
190 | if ((PAGE_SIZE - res) > 10) | |
191 | res = PAGE_SIZE - 10; | |
7bd46508 | 192 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
193 | break; |
194 | } | |
195 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
196 | } | |
6603a6f2 | 197 | read_unlock(&bond->lock); |
1dcdcd69 WF |
198 | if (res) |
199 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
200 | return res; |
201 | } | |
202 | ||
203 | /* | |
204 | * Set the slaves in the current bond. The bond interface must be | |
205 | * up for this to succeed. | |
206 | * This function is largely the same flow as bonding_update_bonds(). | |
207 | */ | |
43cb76d9 GKH |
208 | static ssize_t bonding_store_slaves(struct device *d, |
209 | struct device_attribute *attr, | |
210 | const char *buffer, size_t count) | |
b76cdba9 MW |
211 | { |
212 | char command[IFNAMSIZ + 1] = { 0, }; | |
213 | char *ifname; | |
214 | int i, res, found, ret = count; | |
3158bf7d | 215 | u32 original_mtu; |
b76cdba9 | 216 | struct slave *slave; |
3418db7c | 217 | struct net_device *dev = NULL; |
43cb76d9 | 218 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
219 | |
220 | /* Quick sanity check -- is the bond interface up? */ | |
221 | if (!(bond->dev->flags & IFF_UP)) { | |
e5e2a8fd JP |
222 | pr_warning(DRV_NAME ": %s: doing slave updates when " |
223 | "interface is down.\n", bond->dev->name); | |
b76cdba9 MW |
224 | } |
225 | ||
226 | /* Note: We can't hold bond->lock here, as bond_create grabs it. */ | |
227 | ||
496a60cd EB |
228 | if (!rtnl_trylock()) |
229 | return restart_syscall(); | |
027ea041 | 230 | |
b76cdba9 MW |
231 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
232 | ifname = command + 1; | |
233 | if ((strlen(command) <= 1) || | |
234 | !dev_valid_name(ifname)) | |
235 | goto err_no_cmd; | |
236 | ||
237 | if (command[0] == '+') { | |
238 | ||
239 | /* Got a slave name in ifname. Is it already in the list? */ | |
240 | found = 0; | |
b76cdba9 | 241 | |
373500db SH |
242 | /* FIXME: get netns from sysfs object */ |
243 | dev = __dev_get_by_name(&init_net, ifname); | |
b76cdba9 | 244 | if (!dev) { |
3d632c3f | 245 | pr_info(DRV_NAME |
b76cdba9 MW |
246 | ": %s: Interface %s does not exist!\n", |
247 | bond->dev->name, ifname); | |
373500db | 248 | ret = -ENODEV; |
b76cdba9 | 249 | goto out; |
373500db | 250 | } |
b76cdba9 MW |
251 | |
252 | if (dev->flags & IFF_UP) { | |
3d632c3f | 253 | pr_err(DRV_NAME |
b76cdba9 MW |
254 | ": %s: Error: Unable to enslave %s " |
255 | "because it is already up.\n", | |
256 | bond->dev->name, dev->name); | |
257 | ret = -EPERM; | |
258 | goto out; | |
259 | } | |
373500db SH |
260 | |
261 | read_lock(&bond->lock); | |
262 | bond_for_each_slave(bond, slave, i) | |
263 | if (slave->dev == dev) { | |
264 | pr_err(DRV_NAME | |
265 | ": %s: Interface %s is already enslaved!\n", | |
266 | bond->dev->name, ifname); | |
267 | ret = -EPERM; | |
268 | read_unlock(&bond->lock); | |
269 | goto out; | |
270 | } | |
271 | read_unlock(&bond->lock); | |
272 | ||
273 | pr_info(DRV_NAME ": %s: Adding slave %s.\n", | |
274 | bond->dev->name, ifname); | |
275 | ||
b76cdba9 MW |
276 | /* If this is the first slave, then we need to set |
277 | the master's hardware address to be the same as the | |
278 | slave's. */ | |
5c5129b5 | 279 | if (is_zero_ether_addr(bond->dev->dev_addr)) |
b76cdba9 MW |
280 | memcpy(bond->dev->dev_addr, dev->dev_addr, |
281 | dev->addr_len); | |
b76cdba9 MW |
282 | |
283 | /* Set the slave's MTU to match the bond */ | |
3158bf7d | 284 | original_mtu = dev->mtu; |
eb7cc59a SH |
285 | res = dev_set_mtu(dev, bond->dev->mtu); |
286 | if (res) { | |
287 | ret = res; | |
288 | goto out; | |
b76cdba9 | 289 | } |
eb7cc59a | 290 | |
b76cdba9 | 291 | res = bond_enslave(bond->dev, dev); |
3158bf7d MS |
292 | bond_for_each_slave(bond, slave, i) |
293 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) | |
294 | slave->original_mtu = original_mtu; | |
3d632c3f | 295 | if (res) |
b76cdba9 | 296 | ret = res; |
3d632c3f | 297 | |
b76cdba9 MW |
298 | goto out; |
299 | } | |
300 | ||
301 | if (command[0] == '-') { | |
302 | dev = NULL; | |
6952d892 | 303 | original_mtu = 0; |
b76cdba9 MW |
304 | bond_for_each_slave(bond, slave, i) |
305 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { | |
306 | dev = slave->dev; | |
3158bf7d | 307 | original_mtu = slave->original_mtu; |
b76cdba9 MW |
308 | break; |
309 | } | |
310 | if (dev) { | |
3d632c3f | 311 | pr_info(DRV_NAME ": %s: Removing slave %s\n", |
b76cdba9 | 312 | bond->dev->name, dev->name); |
d90a162a | 313 | res = bond_release(bond->dev, dev); |
b76cdba9 MW |
314 | if (res) { |
315 | ret = res; | |
316 | goto out; | |
317 | } | |
318 | /* set the slave MTU to the default */ | |
eb7cc59a | 319 | dev_set_mtu(dev, original_mtu); |
3d632c3f SH |
320 | } else { |
321 | pr_err(DRV_NAME ": unable to remove non-existent" | |
322 | " slave %s for bond %s.\n", | |
b76cdba9 MW |
323 | ifname, bond->dev->name); |
324 | ret = -ENODEV; | |
325 | } | |
326 | goto out; | |
327 | } | |
328 | ||
329 | err_no_cmd: | |
3d632c3f | 330 | pr_err(DRV_NAME ": no command found in slaves file for bond %s. Use +ifname or -ifname.\n", bond->dev->name); |
b76cdba9 MW |
331 | ret = -EPERM; |
332 | ||
333 | out: | |
027ea041 | 334 | rtnl_unlock(); |
b76cdba9 MW |
335 | return ret; |
336 | } | |
337 | ||
3d632c3f SH |
338 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
339 | bonding_store_slaves); | |
b76cdba9 MW |
340 | |
341 | /* | |
342 | * Show and set the bonding mode. The bond interface must be down to | |
343 | * change the mode. | |
344 | */ | |
43cb76d9 GKH |
345 | static ssize_t bonding_show_mode(struct device *d, |
346 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 347 | { |
43cb76d9 | 348 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
349 | |
350 | return sprintf(buf, "%s %d\n", | |
351 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 352 | bond->params.mode); |
b76cdba9 MW |
353 | } |
354 | ||
43cb76d9 GKH |
355 | static ssize_t bonding_store_mode(struct device *d, |
356 | struct device_attribute *attr, | |
357 | const char *buf, size_t count) | |
b76cdba9 MW |
358 | { |
359 | int new_value, ret = count; | |
43cb76d9 | 360 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
361 | |
362 | if (bond->dev->flags & IFF_UP) { | |
3d632c3f SH |
363 | pr_err(DRV_NAME ": unable to update mode of %s" |
364 | " because interface is up.\n", bond->dev->name); | |
b76cdba9 MW |
365 | ret = -EPERM; |
366 | goto out; | |
367 | } | |
368 | ||
ece95f7f | 369 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 370 | if (new_value < 0) { |
3d632c3f | 371 | pr_err(DRV_NAME |
b76cdba9 MW |
372 | ": %s: Ignoring invalid mode value %.*s.\n", |
373 | bond->dev->name, | |
374 | (int)strlen(buf) - 1, buf); | |
375 | ret = -EINVAL; | |
376 | goto out; | |
377 | } else { | |
8f903c70 JV |
378 | if (bond->params.mode == BOND_MODE_8023AD) |
379 | bond_unset_master_3ad_flags(bond); | |
380 | ||
381 | if (bond->params.mode == BOND_MODE_ALB) | |
382 | bond_unset_master_alb_flags(bond); | |
383 | ||
b76cdba9 MW |
384 | bond->params.mode = new_value; |
385 | bond_set_mode_ops(bond, bond->params.mode); | |
3d632c3f SH |
386 | pr_info(DRV_NAME ": %s: setting mode to %s (%d).\n", |
387 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
388 | new_value); | |
b76cdba9 MW |
389 | } |
390 | out: | |
391 | return ret; | |
392 | } | |
3d632c3f SH |
393 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
394 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
395 | |
396 | /* | |
3d632c3f SH |
397 | * Show and set the bonding transmit hash method. |
398 | * The bond interface must be down to change the xmit hash policy. | |
b76cdba9 | 399 | */ |
43cb76d9 GKH |
400 | static ssize_t bonding_show_xmit_hash(struct device *d, |
401 | struct device_attribute *attr, | |
402 | char *buf) | |
b76cdba9 | 403 | { |
43cb76d9 | 404 | struct bonding *bond = to_bond(d); |
b76cdba9 | 405 | |
8e4b9329 WF |
406 | return sprintf(buf, "%s %d\n", |
407 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
408 | bond->params.xmit_policy); | |
b76cdba9 MW |
409 | } |
410 | ||
43cb76d9 GKH |
411 | static ssize_t bonding_store_xmit_hash(struct device *d, |
412 | struct device_attribute *attr, | |
413 | const char *buf, size_t count) | |
b76cdba9 MW |
414 | { |
415 | int new_value, ret = count; | |
43cb76d9 | 416 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
417 | |
418 | if (bond->dev->flags & IFF_UP) { | |
3d632c3f | 419 | pr_err(DRV_NAME |
b76cdba9 MW |
420 | "%s: Interface is up. Unable to update xmit policy.\n", |
421 | bond->dev->name); | |
422 | ret = -EPERM; | |
423 | goto out; | |
424 | } | |
425 | ||
ece95f7f | 426 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 427 | if (new_value < 0) { |
3d632c3f | 428 | pr_err(DRV_NAME |
b76cdba9 MW |
429 | ": %s: Ignoring invalid xmit hash policy value %.*s.\n", |
430 | bond->dev->name, | |
431 | (int)strlen(buf) - 1, buf); | |
432 | ret = -EINVAL; | |
433 | goto out; | |
434 | } else { | |
435 | bond->params.xmit_policy = new_value; | |
436 | bond_set_mode_ops(bond, bond->params.mode); | |
3d632c3f SH |
437 | pr_info(DRV_NAME ": %s: setting xmit hash policy to %s (%d).\n", |
438 | bond->dev->name, | |
439 | xmit_hashtype_tbl[new_value].modename, new_value); | |
b76cdba9 MW |
440 | } |
441 | out: | |
442 | return ret; | |
443 | } | |
3d632c3f SH |
444 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
445 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 446 | |
f5b2b966 JV |
447 | /* |
448 | * Show and set arp_validate. | |
449 | */ | |
43cb76d9 GKH |
450 | static ssize_t bonding_show_arp_validate(struct device *d, |
451 | struct device_attribute *attr, | |
452 | char *buf) | |
f5b2b966 | 453 | { |
43cb76d9 | 454 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
455 | |
456 | return sprintf(buf, "%s %d\n", | |
457 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 458 | bond->params.arp_validate); |
f5b2b966 JV |
459 | } |
460 | ||
43cb76d9 GKH |
461 | static ssize_t bonding_store_arp_validate(struct device *d, |
462 | struct device_attribute *attr, | |
463 | const char *buf, size_t count) | |
f5b2b966 JV |
464 | { |
465 | int new_value; | |
43cb76d9 | 466 | struct bonding *bond = to_bond(d); |
f5b2b966 | 467 | |
ece95f7f | 468 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 469 | if (new_value < 0) { |
3d632c3f | 470 | pr_err(DRV_NAME |
f5b2b966 JV |
471 | ": %s: Ignoring invalid arp_validate value %s\n", |
472 | bond->dev->name, buf); | |
473 | return -EINVAL; | |
474 | } | |
475 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { | |
3d632c3f | 476 | pr_err(DRV_NAME |
f5b2b966 JV |
477 | ": %s: arp_validate only supported in active-backup mode.\n", |
478 | bond->dev->name); | |
479 | return -EINVAL; | |
480 | } | |
3d632c3f | 481 | pr_info(DRV_NAME ": %s: setting arp_validate to %s (%d).\n", |
f5b2b966 JV |
482 | bond->dev->name, arp_validate_tbl[new_value].modename, |
483 | new_value); | |
484 | ||
3d632c3f | 485 | if (!bond->params.arp_validate && new_value) |
f5b2b966 | 486 | bond_register_arp(bond); |
3d632c3f | 487 | else if (bond->params.arp_validate && !new_value) |
f5b2b966 | 488 | bond_unregister_arp(bond); |
f5b2b966 JV |
489 | |
490 | bond->params.arp_validate = new_value; | |
491 | ||
492 | return count; | |
493 | } | |
494 | ||
3d632c3f SH |
495 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
496 | bonding_store_arp_validate); | |
f5b2b966 | 497 | |
dd957c57 JV |
498 | /* |
499 | * Show and store fail_over_mac. User only allowed to change the | |
500 | * value when there are no slaves. | |
501 | */ | |
3d632c3f SH |
502 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
503 | struct device_attribute *attr, | |
504 | char *buf) | |
dd957c57 JV |
505 | { |
506 | struct bonding *bond = to_bond(d); | |
507 | ||
3915c1e8 JV |
508 | return sprintf(buf, "%s %d\n", |
509 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
510 | bond->params.fail_over_mac); | |
dd957c57 JV |
511 | } |
512 | ||
3d632c3f SH |
513 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
514 | struct device_attribute *attr, | |
515 | const char *buf, size_t count) | |
dd957c57 JV |
516 | { |
517 | int new_value; | |
dd957c57 JV |
518 | struct bonding *bond = to_bond(d); |
519 | ||
520 | if (bond->slave_cnt != 0) { | |
3d632c3f | 521 | pr_err(DRV_NAME |
dd957c57 JV |
522 | ": %s: Can't alter fail_over_mac with slaves in bond.\n", |
523 | bond->dev->name); | |
3915c1e8 | 524 | return -EPERM; |
dd957c57 JV |
525 | } |
526 | ||
3915c1e8 JV |
527 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
528 | if (new_value < 0) { | |
3d632c3f | 529 | pr_err(DRV_NAME |
3915c1e8 JV |
530 | ": %s: Ignoring invalid fail_over_mac value %s.\n", |
531 | bond->dev->name, buf); | |
532 | return -EINVAL; | |
dd957c57 JV |
533 | } |
534 | ||
3915c1e8 | 535 | bond->params.fail_over_mac = new_value; |
3d632c3f | 536 | pr_info(DRV_NAME ": %s: Setting fail_over_mac to %s (%d).\n", |
3915c1e8 JV |
537 | bond->dev->name, fail_over_mac_tbl[new_value].modename, |
538 | new_value); | |
539 | ||
540 | return count; | |
dd957c57 JV |
541 | } |
542 | ||
3d632c3f SH |
543 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
544 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 545 | |
b76cdba9 MW |
546 | /* |
547 | * Show and set the arp timer interval. There are two tricky bits | |
548 | * here. First, if ARP monitoring is activated, then we must disable | |
549 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
550 | * start it. | |
551 | */ | |
43cb76d9 GKH |
552 | static ssize_t bonding_show_arp_interval(struct device *d, |
553 | struct device_attribute *attr, | |
554 | char *buf) | |
b76cdba9 | 555 | { |
43cb76d9 | 556 | struct bonding *bond = to_bond(d); |
b76cdba9 | 557 | |
7bd46508 | 558 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
559 | } |
560 | ||
43cb76d9 GKH |
561 | static ssize_t bonding_store_arp_interval(struct device *d, |
562 | struct device_attribute *attr, | |
563 | const char *buf, size_t count) | |
b76cdba9 MW |
564 | { |
565 | int new_value, ret = count; | |
43cb76d9 | 566 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
567 | |
568 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 569 | pr_err(DRV_NAME |
b76cdba9 MW |
570 | ": %s: no arp_interval value specified.\n", |
571 | bond->dev->name); | |
572 | ret = -EINVAL; | |
573 | goto out; | |
574 | } | |
575 | if (new_value < 0) { | |
3d632c3f | 576 | pr_err(DRV_NAME |
b76cdba9 MW |
577 | ": %s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", |
578 | bond->dev->name, new_value, INT_MAX); | |
579 | ret = -EINVAL; | |
580 | goto out; | |
581 | } | |
582 | ||
3d632c3f | 583 | pr_info(DRV_NAME |
b76cdba9 MW |
584 | ": %s: Setting ARP monitoring interval to %d.\n", |
585 | bond->dev->name, new_value); | |
586 | bond->params.arp_interval = new_value; | |
6cf3f41e JV |
587 | if (bond->params.arp_interval) |
588 | bond->dev->priv_flags |= IFF_MASTER_ARPMON; | |
b76cdba9 | 589 | if (bond->params.miimon) { |
3d632c3f | 590 | pr_info(DRV_NAME |
b76cdba9 MW |
591 | ": %s: ARP monitoring cannot be used with MII monitoring. " |
592 | "%s Disabling MII monitoring.\n", | |
593 | bond->dev->name, bond->dev->name); | |
594 | bond->params.miimon = 0; | |
1b76b316 JV |
595 | if (delayed_work_pending(&bond->mii_work)) { |
596 | cancel_delayed_work(&bond->mii_work); | |
597 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
598 | } |
599 | } | |
600 | if (!bond->params.arp_targets[0]) { | |
3d632c3f | 601 | pr_info(DRV_NAME |
b76cdba9 MW |
602 | ": %s: ARP monitoring has been set up, " |
603 | "but no ARP targets have been specified.\n", | |
604 | bond->dev->name); | |
605 | } | |
606 | if (bond->dev->flags & IFF_UP) { | |
607 | /* If the interface is up, we may need to fire off | |
608 | * the ARP timer. If the interface is down, the | |
609 | * timer will get fired off when the open function | |
610 | * is called. | |
611 | */ | |
1b76b316 JV |
612 | if (!delayed_work_pending(&bond->arp_work)) { |
613 | if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) | |
614 | INIT_DELAYED_WORK(&bond->arp_work, | |
615 | bond_activebackup_arp_mon); | |
616 | else | |
617 | INIT_DELAYED_WORK(&bond->arp_work, | |
618 | bond_loadbalance_arp_mon); | |
619 | ||
620 | queue_delayed_work(bond->wq, &bond->arp_work, 0); | |
b76cdba9 MW |
621 | } |
622 | } | |
623 | ||
624 | out: | |
625 | return ret; | |
626 | } | |
3d632c3f SH |
627 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
628 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
629 | |
630 | /* | |
631 | * Show and set the arp targets. | |
632 | */ | |
43cb76d9 GKH |
633 | static ssize_t bonding_show_arp_targets(struct device *d, |
634 | struct device_attribute *attr, | |
635 | char *buf) | |
b76cdba9 MW |
636 | { |
637 | int i, res = 0; | |
43cb76d9 | 638 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
639 | |
640 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
641 | if (bond->params.arp_targets[i]) | |
63779436 HH |
642 | res += sprintf(buf + res, "%pI4 ", |
643 | &bond->params.arp_targets[i]); | |
b76cdba9 | 644 | } |
1dcdcd69 WF |
645 | if (res) |
646 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
647 | return res; |
648 | } | |
649 | ||
43cb76d9 GKH |
650 | static ssize_t bonding_store_arp_targets(struct device *d, |
651 | struct device_attribute *attr, | |
652 | const char *buf, size_t count) | |
b76cdba9 | 653 | { |
d3bb52b0 | 654 | __be32 newtarget; |
b76cdba9 | 655 | int i = 0, done = 0, ret = count; |
43cb76d9 | 656 | struct bonding *bond = to_bond(d); |
d3bb52b0 | 657 | __be32 *targets; |
b76cdba9 MW |
658 | |
659 | targets = bond->params.arp_targets; | |
660 | newtarget = in_aton(buf + 1); | |
661 | /* look for adds */ | |
662 | if (buf[0] == '+') { | |
d3bb52b0 | 663 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
3d632c3f | 664 | pr_err(DRV_NAME |
63779436 HH |
665 | ": %s: invalid ARP target %pI4 specified for addition\n", |
666 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
667 | ret = -EINVAL; |
668 | goto out; | |
669 | } | |
670 | /* look for an empty slot to put the target in, and check for dupes */ | |
5a31bec0 | 671 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 672 | if (targets[i] == newtarget) { /* duplicate */ |
3d632c3f | 673 | pr_err(DRV_NAME |
63779436 HH |
674 | ": %s: ARP target %pI4 is already present\n", |
675 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
676 | ret = -EINVAL; |
677 | goto out; | |
678 | } | |
5a31bec0 | 679 | if (targets[i] == 0) { |
3d632c3f | 680 | pr_info(DRV_NAME |
63779436 HH |
681 | ": %s: adding ARP target %pI4.\n", |
682 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
683 | done = 1; |
684 | targets[i] = newtarget; | |
685 | } | |
686 | } | |
687 | if (!done) { | |
3d632c3f | 688 | pr_err(DRV_NAME |
b76cdba9 MW |
689 | ": %s: ARP target table is full!\n", |
690 | bond->dev->name); | |
691 | ret = -EINVAL; | |
692 | goto out; | |
693 | } | |
694 | ||
3d632c3f | 695 | } else if (buf[0] == '-') { |
d3bb52b0 | 696 | if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) { |
3d632c3f | 697 | pr_err(DRV_NAME |
63779436 HH |
698 | ": %s: invalid ARP target %pI4 specified for removal\n", |
699 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
700 | ret = -EINVAL; |
701 | goto out; | |
702 | } | |
703 | ||
5a31bec0 | 704 | for (i = 0; (i < BOND_MAX_ARP_TARGETS) && !done; i++) { |
b76cdba9 | 705 | if (targets[i] == newtarget) { |
5a31bec0 | 706 | int j; |
3d632c3f | 707 | pr_info(DRV_NAME |
63779436 HH |
708 | ": %s: removing ARP target %pI4.\n", |
709 | bond->dev->name, &newtarget); | |
5a31bec0 BH |
710 | for (j = i; (j < (BOND_MAX_ARP_TARGETS-1)) && targets[j+1]; j++) |
711 | targets[j] = targets[j+1]; | |
712 | ||
713 | targets[j] = 0; | |
b76cdba9 MW |
714 | done = 1; |
715 | } | |
716 | } | |
717 | if (!done) { | |
3d632c3f | 718 | pr_info(DRV_NAME |
63779436 HH |
719 | ": %s: unable to remove nonexistent ARP target %pI4.\n", |
720 | bond->dev->name, &newtarget); | |
b76cdba9 MW |
721 | ret = -EINVAL; |
722 | goto out; | |
723 | } | |
3d632c3f SH |
724 | } else { |
725 | pr_err(DRV_NAME ": no command found in arp_ip_targets file" | |
726 | " for bond %s. Use +<addr> or -<addr>.\n", | |
b76cdba9 MW |
727 | bond->dev->name); |
728 | ret = -EPERM; | |
729 | goto out; | |
730 | } | |
731 | ||
732 | out: | |
733 | return ret; | |
734 | } | |
43cb76d9 | 735 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
736 | |
737 | /* | |
738 | * Show and set the up and down delays. These must be multiples of the | |
739 | * MII monitoring value, and are stored internally as the multiplier. | |
740 | * Thus, we must translate to MS for the real world. | |
741 | */ | |
43cb76d9 GKH |
742 | static ssize_t bonding_show_downdelay(struct device *d, |
743 | struct device_attribute *attr, | |
744 | char *buf) | |
b76cdba9 | 745 | { |
43cb76d9 | 746 | struct bonding *bond = to_bond(d); |
b76cdba9 | 747 | |
7bd46508 | 748 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
749 | } |
750 | ||
43cb76d9 GKH |
751 | static ssize_t bonding_store_downdelay(struct device *d, |
752 | struct device_attribute *attr, | |
753 | const char *buf, size_t count) | |
b76cdba9 MW |
754 | { |
755 | int new_value, ret = count; | |
43cb76d9 | 756 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
757 | |
758 | if (!(bond->params.miimon)) { | |
3d632c3f | 759 | pr_err(DRV_NAME |
b76cdba9 MW |
760 | ": %s: Unable to set down delay as MII monitoring is disabled\n", |
761 | bond->dev->name); | |
762 | ret = -EPERM; | |
763 | goto out; | |
764 | } | |
765 | ||
766 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 767 | pr_err(DRV_NAME |
b76cdba9 MW |
768 | ": %s: no down delay value specified.\n", |
769 | bond->dev->name); | |
770 | ret = -EINVAL; | |
771 | goto out; | |
772 | } | |
773 | if (new_value < 0) { | |
3d632c3f | 774 | pr_err(DRV_NAME |
b76cdba9 MW |
775 | ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
776 | bond->dev->name, new_value, 1, INT_MAX); | |
777 | ret = -EINVAL; | |
778 | goto out; | |
779 | } else { | |
780 | if ((new_value % bond->params.miimon) != 0) { | |
e5e2a8fd JP |
781 | pr_warning(DRV_NAME |
782 | ": %s: Warning: down delay (%d) is not a " | |
783 | "multiple of miimon (%d), delay rounded " | |
784 | "to %d ms\n", | |
785 | bond->dev->name, new_value, | |
786 | bond->params.miimon, | |
787 | (new_value / bond->params.miimon) * | |
788 | bond->params.miimon); | |
b76cdba9 MW |
789 | } |
790 | bond->params.downdelay = new_value / bond->params.miimon; | |
3d632c3f SH |
791 | pr_info(DRV_NAME ": %s: Setting down delay to %d.\n", |
792 | bond->dev->name, | |
793 | bond->params.downdelay * bond->params.miimon); | |
b76cdba9 MW |
794 | |
795 | } | |
796 | ||
797 | out: | |
798 | return ret; | |
799 | } | |
3d632c3f SH |
800 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
801 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 802 | |
43cb76d9 GKH |
803 | static ssize_t bonding_show_updelay(struct device *d, |
804 | struct device_attribute *attr, | |
805 | char *buf) | |
b76cdba9 | 806 | { |
43cb76d9 | 807 | struct bonding *bond = to_bond(d); |
b76cdba9 | 808 | |
7bd46508 | 809 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
810 | |
811 | } | |
812 | ||
43cb76d9 GKH |
813 | static ssize_t bonding_store_updelay(struct device *d, |
814 | struct device_attribute *attr, | |
815 | const char *buf, size_t count) | |
b76cdba9 MW |
816 | { |
817 | int new_value, ret = count; | |
43cb76d9 | 818 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
819 | |
820 | if (!(bond->params.miimon)) { | |
3d632c3f | 821 | pr_err(DRV_NAME |
b76cdba9 MW |
822 | ": %s: Unable to set up delay as MII monitoring is disabled\n", |
823 | bond->dev->name); | |
824 | ret = -EPERM; | |
825 | goto out; | |
826 | } | |
827 | ||
828 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 829 | pr_err(DRV_NAME |
b76cdba9 MW |
830 | ": %s: no up delay value specified.\n", |
831 | bond->dev->name); | |
832 | ret = -EINVAL; | |
833 | goto out; | |
834 | } | |
835 | if (new_value < 0) { | |
3d632c3f | 836 | pr_err(DRV_NAME |
b76cdba9 MW |
837 | ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
838 | bond->dev->name, new_value, 1, INT_MAX); | |
839 | ret = -EINVAL; | |
840 | goto out; | |
841 | } else { | |
842 | if ((new_value % bond->params.miimon) != 0) { | |
e5e2a8fd JP |
843 | pr_warning(DRV_NAME |
844 | ": %s: Warning: up delay (%d) is not a " | |
845 | "multiple of miimon (%d), updelay rounded " | |
846 | "to %d ms\n", | |
847 | bond->dev->name, new_value, | |
848 | bond->params.miimon, | |
849 | (new_value / bond->params.miimon) * | |
850 | bond->params.miimon); | |
b76cdba9 MW |
851 | } |
852 | bond->params.updelay = new_value / bond->params.miimon; | |
3d632c3f | 853 | pr_info(DRV_NAME ": %s: Setting up delay to %d.\n", |
b76cdba9 MW |
854 | bond->dev->name, bond->params.updelay * bond->params.miimon); |
855 | ||
856 | } | |
857 | ||
858 | out: | |
859 | return ret; | |
860 | } | |
3d632c3f SH |
861 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
862 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
863 | |
864 | /* | |
865 | * Show and set the LACP interval. Interface must be down, and the mode | |
866 | * must be set to 802.3ad mode. | |
867 | */ | |
43cb76d9 GKH |
868 | static ssize_t bonding_show_lacp(struct device *d, |
869 | struct device_attribute *attr, | |
870 | char *buf) | |
b76cdba9 | 871 | { |
43cb76d9 | 872 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
873 | |
874 | return sprintf(buf, "%s %d\n", | |
875 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 876 | bond->params.lacp_fast); |
b76cdba9 MW |
877 | } |
878 | ||
43cb76d9 GKH |
879 | static ssize_t bonding_store_lacp(struct device *d, |
880 | struct device_attribute *attr, | |
881 | const char *buf, size_t count) | |
b76cdba9 MW |
882 | { |
883 | int new_value, ret = count; | |
43cb76d9 | 884 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
885 | |
886 | if (bond->dev->flags & IFF_UP) { | |
3d632c3f | 887 | pr_err(DRV_NAME |
b76cdba9 MW |
888 | ": %s: Unable to update LACP rate because interface is up.\n", |
889 | bond->dev->name); | |
890 | ret = -EPERM; | |
891 | goto out; | |
892 | } | |
893 | ||
894 | if (bond->params.mode != BOND_MODE_8023AD) { | |
3d632c3f | 895 | pr_err(DRV_NAME |
b76cdba9 MW |
896 | ": %s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
897 | bond->dev->name); | |
898 | ret = -EPERM; | |
899 | goto out; | |
900 | } | |
901 | ||
ece95f7f | 902 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
b76cdba9 MW |
903 | |
904 | if ((new_value == 1) || (new_value == 0)) { | |
905 | bond->params.lacp_fast = new_value; | |
3d632c3f SH |
906 | pr_info(DRV_NAME ": %s: Setting LACP rate to %s (%d).\n", |
907 | bond->dev->name, bond_lacp_tbl[new_value].modename, | |
908 | new_value); | |
b76cdba9 | 909 | } else { |
3d632c3f | 910 | pr_err(DRV_NAME |
b76cdba9 | 911 | ": %s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 912 | bond->dev->name, (int)strlen(buf) - 1, buf); |
b76cdba9 MW |
913 | ret = -EINVAL; |
914 | } | |
915 | out: | |
916 | return ret; | |
917 | } | |
3d632c3f SH |
918 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
919 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 920 | |
fd989c83 JV |
921 | static ssize_t bonding_show_ad_select(struct device *d, |
922 | struct device_attribute *attr, | |
923 | char *buf) | |
924 | { | |
925 | struct bonding *bond = to_bond(d); | |
926 | ||
927 | return sprintf(buf, "%s %d\n", | |
928 | ad_select_tbl[bond->params.ad_select].modename, | |
929 | bond->params.ad_select); | |
930 | } | |
931 | ||
932 | ||
933 | static ssize_t bonding_store_ad_select(struct device *d, | |
934 | struct device_attribute *attr, | |
935 | const char *buf, size_t count) | |
936 | { | |
937 | int new_value, ret = count; | |
938 | struct bonding *bond = to_bond(d); | |
939 | ||
940 | if (bond->dev->flags & IFF_UP) { | |
3d632c3f | 941 | pr_err(DRV_NAME |
fd989c83 JV |
942 | ": %s: Unable to update ad_select because interface " |
943 | "is up.\n", bond->dev->name); | |
944 | ret = -EPERM; | |
945 | goto out; | |
946 | } | |
947 | ||
948 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
949 | ||
950 | if (new_value != -1) { | |
951 | bond->params.ad_select = new_value; | |
3d632c3f | 952 | pr_info(DRV_NAME |
fd989c83 JV |
953 | ": %s: Setting ad_select to %s (%d).\n", |
954 | bond->dev->name, ad_select_tbl[new_value].modename, | |
955 | new_value); | |
956 | } else { | |
3d632c3f | 957 | pr_err(DRV_NAME |
fd989c83 JV |
958 | ": %s: Ignoring invalid ad_select value %.*s.\n", |
959 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
960 | ret = -EINVAL; | |
961 | } | |
962 | out: | |
963 | return ret; | |
964 | } | |
3d632c3f SH |
965 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
966 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 967 | |
7893b249 MS |
968 | /* |
969 | * Show and set the number of grat ARP to send after a failover event. | |
970 | */ | |
971 | static ssize_t bonding_show_n_grat_arp(struct device *d, | |
972 | struct device_attribute *attr, | |
973 | char *buf) | |
974 | { | |
975 | struct bonding *bond = to_bond(d); | |
976 | ||
977 | return sprintf(buf, "%d\n", bond->params.num_grat_arp); | |
978 | } | |
979 | ||
980 | static ssize_t bonding_store_n_grat_arp(struct device *d, | |
981 | struct device_attribute *attr, | |
982 | const char *buf, size_t count) | |
983 | { | |
984 | int new_value, ret = count; | |
985 | struct bonding *bond = to_bond(d); | |
986 | ||
987 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 988 | pr_err(DRV_NAME |
7893b249 MS |
989 | ": %s: no num_grat_arp value specified.\n", |
990 | bond->dev->name); | |
991 | ret = -EINVAL; | |
992 | goto out; | |
993 | } | |
994 | if (new_value < 0 || new_value > 255) { | |
3d632c3f | 995 | pr_err(DRV_NAME |
7893b249 MS |
996 | ": %s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n", |
997 | bond->dev->name, new_value); | |
998 | ret = -EINVAL; | |
999 | goto out; | |
1000 | } else { | |
1001 | bond->params.num_grat_arp = new_value; | |
1002 | } | |
1003 | out: | |
1004 | return ret; | |
1005 | } | |
3d632c3f SH |
1006 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, |
1007 | bonding_show_n_grat_arp, bonding_store_n_grat_arp); | |
305d552a BH |
1008 | |
1009 | /* | |
3d632c3f | 1010 | * Show and set the number of unsolicited NA's to send after a failover event. |
305d552a BH |
1011 | */ |
1012 | static ssize_t bonding_show_n_unsol_na(struct device *d, | |
1013 | struct device_attribute *attr, | |
1014 | char *buf) | |
1015 | { | |
1016 | struct bonding *bond = to_bond(d); | |
1017 | ||
1018 | return sprintf(buf, "%d\n", bond->params.num_unsol_na); | |
1019 | } | |
1020 | ||
1021 | static ssize_t bonding_store_n_unsol_na(struct device *d, | |
1022 | struct device_attribute *attr, | |
1023 | const char *buf, size_t count) | |
1024 | { | |
1025 | int new_value, ret = count; | |
1026 | struct bonding *bond = to_bond(d); | |
1027 | ||
1028 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 1029 | pr_err(DRV_NAME |
305d552a BH |
1030 | ": %s: no num_unsol_na value specified.\n", |
1031 | bond->dev->name); | |
1032 | ret = -EINVAL; | |
1033 | goto out; | |
1034 | } | |
3d632c3f | 1035 | |
305d552a | 1036 | if (new_value < 0 || new_value > 255) { |
3d632c3f | 1037 | pr_err(DRV_NAME |
305d552a BH |
1038 | ": %s: Invalid num_unsol_na value %d not in range 0-255; rejected.\n", |
1039 | bond->dev->name, new_value); | |
1040 | ret = -EINVAL; | |
1041 | goto out; | |
3d632c3f | 1042 | } else |
305d552a | 1043 | bond->params.num_unsol_na = new_value; |
305d552a BH |
1044 | out: |
1045 | return ret; | |
1046 | } | |
3d632c3f SH |
1047 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, |
1048 | bonding_show_n_unsol_na, bonding_store_n_unsol_na); | |
305d552a | 1049 | |
b76cdba9 MW |
1050 | /* |
1051 | * Show and set the MII monitor interval. There are two tricky bits | |
1052 | * here. First, if MII monitoring is activated, then we must disable | |
1053 | * ARP monitoring. Second, if the timer isn't running, we must | |
1054 | * start it. | |
1055 | */ | |
43cb76d9 GKH |
1056 | static ssize_t bonding_show_miimon(struct device *d, |
1057 | struct device_attribute *attr, | |
1058 | char *buf) | |
b76cdba9 | 1059 | { |
43cb76d9 | 1060 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1061 | |
7bd46508 | 1062 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
1063 | } |
1064 | ||
43cb76d9 GKH |
1065 | static ssize_t bonding_store_miimon(struct device *d, |
1066 | struct device_attribute *attr, | |
1067 | const char *buf, size_t count) | |
b76cdba9 MW |
1068 | { |
1069 | int new_value, ret = count; | |
43cb76d9 | 1070 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1071 | |
1072 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 1073 | pr_err(DRV_NAME |
b76cdba9 MW |
1074 | ": %s: no miimon value specified.\n", |
1075 | bond->dev->name); | |
1076 | ret = -EINVAL; | |
1077 | goto out; | |
1078 | } | |
1079 | if (new_value < 0) { | |
3d632c3f | 1080 | pr_err(DRV_NAME |
b76cdba9 MW |
1081 | ": %s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
1082 | bond->dev->name, new_value, 1, INT_MAX); | |
1083 | ret = -EINVAL; | |
1084 | goto out; | |
1085 | } else { | |
3d632c3f | 1086 | pr_info(DRV_NAME |
b76cdba9 MW |
1087 | ": %s: Setting MII monitoring interval to %d.\n", |
1088 | bond->dev->name, new_value); | |
1089 | bond->params.miimon = new_value; | |
3d632c3f SH |
1090 | if (bond->params.updelay) |
1091 | pr_info(DRV_NAME | |
b76cdba9 MW |
1092 | ": %s: Note: Updating updelay (to %d) " |
1093 | "since it is a multiple of the miimon value.\n", | |
1094 | bond->dev->name, | |
1095 | bond->params.updelay * bond->params.miimon); | |
3d632c3f SH |
1096 | if (bond->params.downdelay) |
1097 | pr_info(DRV_NAME | |
b76cdba9 MW |
1098 | ": %s: Note: Updating downdelay (to %d) " |
1099 | "since it is a multiple of the miimon value.\n", | |
1100 | bond->dev->name, | |
1101 | bond->params.downdelay * bond->params.miimon); | |
1102 | if (bond->params.arp_interval) { | |
3d632c3f | 1103 | pr_info(DRV_NAME |
b76cdba9 MW |
1104 | ": %s: MII monitoring cannot be used with " |
1105 | "ARP monitoring. Disabling ARP monitoring...\n", | |
1106 | bond->dev->name); | |
1107 | bond->params.arp_interval = 0; | |
6cf3f41e | 1108 | bond->dev->priv_flags &= ~IFF_MASTER_ARPMON; |
f5b2b966 JV |
1109 | if (bond->params.arp_validate) { |
1110 | bond_unregister_arp(bond); | |
1111 | bond->params.arp_validate = | |
1112 | BOND_ARP_VALIDATE_NONE; | |
1113 | } | |
1b76b316 JV |
1114 | if (delayed_work_pending(&bond->arp_work)) { |
1115 | cancel_delayed_work(&bond->arp_work); | |
1116 | flush_workqueue(bond->wq); | |
b76cdba9 MW |
1117 | } |
1118 | } | |
1119 | ||
1120 | if (bond->dev->flags & IFF_UP) { | |
1121 | /* If the interface is up, we may need to fire off | |
1122 | * the MII timer. If the interface is down, the | |
1123 | * timer will get fired off when the open function | |
1124 | * is called. | |
1125 | */ | |
1b76b316 JV |
1126 | if (!delayed_work_pending(&bond->mii_work)) { |
1127 | INIT_DELAYED_WORK(&bond->mii_work, | |
1128 | bond_mii_monitor); | |
1129 | queue_delayed_work(bond->wq, | |
1130 | &bond->mii_work, 0); | |
b76cdba9 MW |
1131 | } |
1132 | } | |
1133 | } | |
1134 | out: | |
1135 | return ret; | |
1136 | } | |
3d632c3f SH |
1137 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
1138 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
1139 | |
1140 | /* | |
1141 | * Show and set the primary slave. The store function is much | |
1142 | * simpler than bonding_store_slaves function because it only needs to | |
1143 | * handle one interface name. | |
1144 | * The bond must be a mode that supports a primary for this be | |
1145 | * set. | |
1146 | */ | |
43cb76d9 GKH |
1147 | static ssize_t bonding_show_primary(struct device *d, |
1148 | struct device_attribute *attr, | |
1149 | char *buf) | |
b76cdba9 MW |
1150 | { |
1151 | int count = 0; | |
43cb76d9 | 1152 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1153 | |
1154 | if (bond->primary_slave) | |
7bd46508 | 1155 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
1156 | |
1157 | return count; | |
1158 | } | |
1159 | ||
43cb76d9 GKH |
1160 | static ssize_t bonding_store_primary(struct device *d, |
1161 | struct device_attribute *attr, | |
1162 | const char *buf, size_t count) | |
b76cdba9 MW |
1163 | { |
1164 | int i; | |
1165 | struct slave *slave; | |
43cb76d9 | 1166 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1167 | |
496a60cd EB |
1168 | if (!rtnl_trylock()) |
1169 | return restart_syscall(); | |
e934dd78 JV |
1170 | read_lock(&bond->lock); |
1171 | write_lock_bh(&bond->curr_slave_lock); | |
1172 | ||
b76cdba9 | 1173 | if (!USES_PRIMARY(bond->params.mode)) { |
3d632c3f | 1174 | pr_info(DRV_NAME |
b76cdba9 MW |
1175 | ": %s: Unable to set primary slave; %s is in mode %d\n", |
1176 | bond->dev->name, bond->dev->name, bond->params.mode); | |
1177 | } else { | |
1178 | bond_for_each_slave(bond, slave, i) { | |
1179 | if (strnicmp | |
1180 | (slave->dev->name, buf, | |
1181 | strlen(slave->dev->name)) == 0) { | |
3d632c3f | 1182 | pr_info(DRV_NAME |
b76cdba9 MW |
1183 | ": %s: Setting %s as primary slave.\n", |
1184 | bond->dev->name, slave->dev->name); | |
1185 | bond->primary_slave = slave; | |
ce501caf | 1186 | strcpy(bond->params.primary, slave->dev->name); |
b76cdba9 MW |
1187 | bond_select_active_slave(bond); |
1188 | goto out; | |
1189 | } | |
1190 | } | |
1191 | ||
1192 | /* if we got here, then we didn't match the name of any slave */ | |
1193 | ||
1194 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
3d632c3f | 1195 | pr_info(DRV_NAME |
b76cdba9 MW |
1196 | ": %s: Setting primary slave to None.\n", |
1197 | bond->dev->name); | |
3418db7c | 1198 | bond->primary_slave = NULL; |
b76cdba9 MW |
1199 | bond_select_active_slave(bond); |
1200 | } else { | |
3d632c3f | 1201 | pr_info(DRV_NAME |
b76cdba9 MW |
1202 | ": %s: Unable to set %.*s as primary slave as it is not a slave.\n", |
1203 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
1204 | } | |
1205 | } | |
1206 | out: | |
e934dd78 JV |
1207 | write_unlock_bh(&bond->curr_slave_lock); |
1208 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1209 | rtnl_unlock(); |
1210 | ||
b76cdba9 MW |
1211 | return count; |
1212 | } | |
3d632c3f SH |
1213 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
1214 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 MW |
1215 | |
1216 | /* | |
1217 | * Show and set the use_carrier flag. | |
1218 | */ | |
43cb76d9 GKH |
1219 | static ssize_t bonding_show_carrier(struct device *d, |
1220 | struct device_attribute *attr, | |
1221 | char *buf) | |
b76cdba9 | 1222 | { |
43cb76d9 | 1223 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1224 | |
7bd46508 | 1225 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
1226 | } |
1227 | ||
43cb76d9 GKH |
1228 | static ssize_t bonding_store_carrier(struct device *d, |
1229 | struct device_attribute *attr, | |
1230 | const char *buf, size_t count) | |
b76cdba9 MW |
1231 | { |
1232 | int new_value, ret = count; | |
43cb76d9 | 1233 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1234 | |
1235 | ||
1236 | if (sscanf(buf, "%d", &new_value) != 1) { | |
3d632c3f | 1237 | pr_err(DRV_NAME |
b76cdba9 MW |
1238 | ": %s: no use_carrier value specified.\n", |
1239 | bond->dev->name); | |
1240 | ret = -EINVAL; | |
1241 | goto out; | |
1242 | } | |
1243 | if ((new_value == 0) || (new_value == 1)) { | |
1244 | bond->params.use_carrier = new_value; | |
3d632c3f | 1245 | pr_info(DRV_NAME ": %s: Setting use_carrier to %d.\n", |
b76cdba9 MW |
1246 | bond->dev->name, new_value); |
1247 | } else { | |
3d632c3f | 1248 | pr_info(DRV_NAME |
b76cdba9 MW |
1249 | ": %s: Ignoring invalid use_carrier value %d.\n", |
1250 | bond->dev->name, new_value); | |
1251 | } | |
1252 | out: | |
1253 | return count; | |
1254 | } | |
3d632c3f SH |
1255 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
1256 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
1257 | |
1258 | ||
1259 | /* | |
1260 | * Show and set currently active_slave. | |
1261 | */ | |
43cb76d9 GKH |
1262 | static ssize_t bonding_show_active_slave(struct device *d, |
1263 | struct device_attribute *attr, | |
1264 | char *buf) | |
b76cdba9 MW |
1265 | { |
1266 | struct slave *curr; | |
43cb76d9 | 1267 | struct bonding *bond = to_bond(d); |
16cd0160 | 1268 | int count = 0; |
b76cdba9 | 1269 | |
b76cdba9 MW |
1270 | read_lock(&bond->curr_slave_lock); |
1271 | curr = bond->curr_active_slave; | |
1272 | read_unlock(&bond->curr_slave_lock); | |
1273 | ||
1274 | if (USES_PRIMARY(bond->params.mode) && curr) | |
7bd46508 | 1275 | count = sprintf(buf, "%s\n", curr->dev->name); |
b76cdba9 MW |
1276 | return count; |
1277 | } | |
1278 | ||
43cb76d9 GKH |
1279 | static ssize_t bonding_store_active_slave(struct device *d, |
1280 | struct device_attribute *attr, | |
1281 | const char *buf, size_t count) | |
b76cdba9 MW |
1282 | { |
1283 | int i; | |
1284 | struct slave *slave; | |
3d632c3f SH |
1285 | struct slave *old_active = NULL; |
1286 | struct slave *new_active = NULL; | |
43cb76d9 | 1287 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1288 | |
496a60cd EB |
1289 | if (!rtnl_trylock()) |
1290 | return restart_syscall(); | |
e934dd78 JV |
1291 | read_lock(&bond->lock); |
1292 | write_lock_bh(&bond->curr_slave_lock); | |
1466a219 | 1293 | |
3d632c3f SH |
1294 | if (!USES_PRIMARY(bond->params.mode)) |
1295 | pr_info(DRV_NAME ": %s: Unable to change active slave;" | |
1296 | " %s is in mode %d\n", | |
1297 | bond->dev->name, bond->dev->name, bond->params.mode); | |
1298 | else { | |
b76cdba9 MW |
1299 | bond_for_each_slave(bond, slave, i) { |
1300 | if (strnicmp | |
1301 | (slave->dev->name, buf, | |
1302 | strlen(slave->dev->name)) == 0) { | |
1303 | old_active = bond->curr_active_slave; | |
1304 | new_active = slave; | |
a50d8de2 | 1305 | if (new_active == old_active) { |
b76cdba9 | 1306 | /* do nothing */ |
e5e2a8fd JP |
1307 | pr_info(DRV_NAME |
1308 | ": %s: %s is already the current active slave.\n", | |
1309 | bond->dev->name, slave->dev->name); | |
b76cdba9 MW |
1310 | goto out; |
1311 | } | |
1312 | else { | |
1313 | if ((new_active) && | |
1314 | (old_active) && | |
1315 | (new_active->link == BOND_LINK_UP) && | |
1316 | IS_UP(new_active->dev)) { | |
e5e2a8fd JP |
1317 | pr_info(DRV_NAME |
1318 | ": %s: Setting %s as active slave.\n", | |
1319 | bond->dev->name, slave->dev->name); | |
1320 | bond_change_active_slave(bond, new_active); | |
b76cdba9 MW |
1321 | } |
1322 | else { | |
e5e2a8fd JP |
1323 | pr_info(DRV_NAME |
1324 | ": %s: Could not set %s as active slave; " | |
1325 | "either %s is down or the link is down.\n", | |
1326 | bond->dev->name, slave->dev->name, | |
1327 | slave->dev->name); | |
b76cdba9 MW |
1328 | } |
1329 | goto out; | |
1330 | } | |
1331 | } | |
1332 | } | |
1333 | ||
1334 | /* if we got here, then we didn't match the name of any slave */ | |
1335 | ||
1336 | if (strlen(buf) == 0 || buf[0] == '\n') { | |
3d632c3f SH |
1337 | pr_info(DRV_NAME |
1338 | ": %s: Setting active slave to None.\n", | |
1339 | bond->dev->name); | |
3418db7c | 1340 | bond->primary_slave = NULL; |
3d632c3f | 1341 | bond_select_active_slave(bond); |
b76cdba9 | 1342 | } else { |
3d632c3f SH |
1343 | pr_info(DRV_NAME ": %s: Unable to set %.*s" |
1344 | " as active slave as it is not a slave.\n", | |
1345 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
b76cdba9 MW |
1346 | } |
1347 | } | |
3d632c3f | 1348 | out: |
e934dd78 JV |
1349 | write_unlock_bh(&bond->curr_slave_lock); |
1350 | read_unlock(&bond->lock); | |
6603a6f2 JV |
1351 | rtnl_unlock(); |
1352 | ||
b76cdba9 MW |
1353 | return count; |
1354 | ||
1355 | } | |
3d632c3f SH |
1356 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1357 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1358 | |
1359 | ||
1360 | /* | |
1361 | * Show link status of the bond interface. | |
1362 | */ | |
43cb76d9 GKH |
1363 | static ssize_t bonding_show_mii_status(struct device *d, |
1364 | struct device_attribute *attr, | |
1365 | char *buf) | |
b76cdba9 MW |
1366 | { |
1367 | struct slave *curr; | |
43cb76d9 | 1368 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1369 | |
1370 | read_lock(&bond->curr_slave_lock); | |
1371 | curr = bond->curr_active_slave; | |
1372 | read_unlock(&bond->curr_slave_lock); | |
1373 | ||
3d632c3f | 1374 | return sprintf(buf, "%s\n", curr ? "up" : "down"); |
b76cdba9 | 1375 | } |
43cb76d9 | 1376 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 MW |
1377 | |
1378 | ||
1379 | /* | |
1380 | * Show current 802.3ad aggregator ID. | |
1381 | */ | |
43cb76d9 GKH |
1382 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1383 | struct device_attribute *attr, | |
1384 | char *buf) | |
b76cdba9 MW |
1385 | { |
1386 | int count = 0; | |
43cb76d9 | 1387 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1388 | |
1389 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1390 | struct ad_info ad_info; | |
3d632c3f SH |
1391 | count = sprintf(buf, "%d\n", |
1392 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1393 | ? 0 : ad_info.aggregator_id); | |
b76cdba9 | 1394 | } |
b76cdba9 MW |
1395 | |
1396 | return count; | |
1397 | } | |
43cb76d9 | 1398 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1399 | |
1400 | ||
1401 | /* | |
1402 | * Show number of active 802.3ad ports. | |
1403 | */ | |
43cb76d9 GKH |
1404 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1405 | struct device_attribute *attr, | |
1406 | char *buf) | |
b76cdba9 MW |
1407 | { |
1408 | int count = 0; | |
43cb76d9 | 1409 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1410 | |
1411 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1412 | struct ad_info ad_info; | |
3d632c3f SH |
1413 | count = sprintf(buf, "%d\n", |
1414 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1415 | ? 0 : ad_info.ports); | |
b76cdba9 | 1416 | } |
b76cdba9 MW |
1417 | |
1418 | return count; | |
1419 | } | |
43cb76d9 | 1420 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1421 | |
1422 | ||
1423 | /* | |
1424 | * Show current 802.3ad actor key. | |
1425 | */ | |
43cb76d9 GKH |
1426 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1427 | struct device_attribute *attr, | |
1428 | char *buf) | |
b76cdba9 MW |
1429 | { |
1430 | int count = 0; | |
43cb76d9 | 1431 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1432 | |
1433 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1434 | struct ad_info ad_info; | |
3d632c3f SH |
1435 | count = sprintf(buf, "%d\n", |
1436 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1437 | ? 0 : ad_info.actor_key); | |
b76cdba9 | 1438 | } |
b76cdba9 MW |
1439 | |
1440 | return count; | |
1441 | } | |
43cb76d9 | 1442 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1443 | |
1444 | ||
1445 | /* | |
1446 | * Show current 802.3ad partner key. | |
1447 | */ | |
43cb76d9 GKH |
1448 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1449 | struct device_attribute *attr, | |
1450 | char *buf) | |
b76cdba9 MW |
1451 | { |
1452 | int count = 0; | |
43cb76d9 | 1453 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1454 | |
1455 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1456 | struct ad_info ad_info; | |
3d632c3f SH |
1457 | count = sprintf(buf, "%d\n", |
1458 | (bond_3ad_get_active_agg_info(bond, &ad_info)) | |
1459 | ? 0 : ad_info.partner_key); | |
b76cdba9 | 1460 | } |
b76cdba9 MW |
1461 | |
1462 | return count; | |
1463 | } | |
43cb76d9 | 1464 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1465 | |
1466 | ||
1467 | /* | |
1468 | * Show current 802.3ad partner mac. | |
1469 | */ | |
43cb76d9 GKH |
1470 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1471 | struct device_attribute *attr, | |
1472 | char *buf) | |
b76cdba9 MW |
1473 | { |
1474 | int count = 0; | |
43cb76d9 | 1475 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1476 | |
1477 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1478 | struct ad_info ad_info; | |
3d632c3f | 1479 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1480 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1481 | } |
b76cdba9 MW |
1482 | |
1483 | return count; | |
1484 | } | |
43cb76d9 | 1485 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 MW |
1486 | |
1487 | ||
1488 | ||
1489 | static struct attribute *per_bond_attrs[] = { | |
43cb76d9 GKH |
1490 | &dev_attr_slaves.attr, |
1491 | &dev_attr_mode.attr, | |
dd957c57 | 1492 | &dev_attr_fail_over_mac.attr, |
43cb76d9 GKH |
1493 | &dev_attr_arp_validate.attr, |
1494 | &dev_attr_arp_interval.attr, | |
1495 | &dev_attr_arp_ip_target.attr, | |
1496 | &dev_attr_downdelay.attr, | |
1497 | &dev_attr_updelay.attr, | |
1498 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1499 | &dev_attr_ad_select.attr, |
43cb76d9 | 1500 | &dev_attr_xmit_hash_policy.attr, |
7893b249 | 1501 | &dev_attr_num_grat_arp.attr, |
305d552a | 1502 | &dev_attr_num_unsol_na.attr, |
43cb76d9 GKH |
1503 | &dev_attr_miimon.attr, |
1504 | &dev_attr_primary.attr, | |
1505 | &dev_attr_use_carrier.attr, | |
1506 | &dev_attr_active_slave.attr, | |
1507 | &dev_attr_mii_status.attr, | |
1508 | &dev_attr_ad_aggregator.attr, | |
1509 | &dev_attr_ad_num_ports.attr, | |
1510 | &dev_attr_ad_actor_key.attr, | |
1511 | &dev_attr_ad_partner_key.attr, | |
1512 | &dev_attr_ad_partner_mac.attr, | |
b76cdba9 MW |
1513 | NULL, |
1514 | }; | |
1515 | ||
1516 | static struct attribute_group bonding_group = { | |
1517 | .name = "bonding", | |
1518 | .attrs = per_bond_attrs, | |
1519 | }; | |
1520 | ||
1521 | /* | |
1522 | * Initialize sysfs. This sets up the bonding_masters file in | |
1523 | * /sys/class/net. | |
1524 | */ | |
1525 | int bond_create_sysfs(void) | |
1526 | { | |
b8a9787e | 1527 | int ret; |
b76cdba9 | 1528 | |
b8a9787e | 1529 | ret = netdev_class_create_file(&class_attr_bonding_masters); |
877cbd36 JV |
1530 | /* |
1531 | * Permit multiple loads of the module by ignoring failures to | |
1532 | * create the bonding_masters sysfs file. Bonding devices | |
1533 | * created by second or subsequent loads of the module will | |
1534 | * not be listed in, or controllable by, bonding_masters, but | |
1535 | * will have the usual "bonding" sysfs directory. | |
1536 | * | |
1537 | * This is done to preserve backwards compatibility for | |
1538 | * initscripts/sysconfig, which load bonding multiple times to | |
1539 | * configure multiple bonding devices. | |
1540 | */ | |
1541 | if (ret == -EEXIST) { | |
38d2f38b SH |
1542 | /* Is someone being kinky and naming a device bonding_master? */ |
1543 | if (__dev_get_by_name(&init_net, | |
1544 | class_attr_bonding_masters.attr.name)) | |
e5e2a8fd JP |
1545 | pr_err("network device named %s already " |
1546 | "exists in sysfs", | |
38d2f38b | 1547 | class_attr_bonding_masters.attr.name); |
130aa61a | 1548 | ret = 0; |
877cbd36 | 1549 | } |
b76cdba9 MW |
1550 | |
1551 | return ret; | |
1552 | ||
1553 | } | |
1554 | ||
1555 | /* | |
1556 | * Remove /sys/class/net/bonding_masters. | |
1557 | */ | |
1558 | void bond_destroy_sysfs(void) | |
1559 | { | |
b8a9787e | 1560 | netdev_class_remove_file(&class_attr_bonding_masters); |
b76cdba9 MW |
1561 | } |
1562 | ||
1563 | /* | |
1564 | * Initialize sysfs for each bond. This sets up and registers | |
1565 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1566 | */ | |
1567 | int bond_create_sysfs_entry(struct bonding *bond) | |
1568 | { | |
1569 | struct net_device *dev = bond->dev; | |
1570 | int err; | |
1571 | ||
43cb76d9 | 1572 | err = sysfs_create_group(&(dev->dev.kobj), &bonding_group); |
3d632c3f | 1573 | if (err) |
e5e2a8fd | 1574 | pr_emerg("eek! didn't create group!\n"); |
b76cdba9 | 1575 | |
b76cdba9 MW |
1576 | return err; |
1577 | } | |
1578 | /* | |
1579 | * Remove sysfs entries for each bond. | |
1580 | */ | |
1581 | void bond_destroy_sysfs_entry(struct bonding *bond) | |
1582 | { | |
1583 | struct net_device *dev = bond->dev; | |
1584 | ||
43cb76d9 | 1585 | sysfs_remove_group(&(dev->dev.kobj), &bonding_group); |
b76cdba9 MW |
1586 | } |
1587 |