blob: 296a865b75d29291a02ef169bab0a9229613aa1a [file] [log] [blame]
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001
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 *
Mitch Williamsb76cdba2005-11-09 10:36:41 -080022 */
Mitch Williamsb76cdba2005-11-09 10:36:41 -080023#include <linux/kernel.h>
24#include <linux/module.h>
Mitch Williamsb76cdba2005-11-09 10:36:41 -080025#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>
Mitch Williamsb76cdba2005-11-09 10:36:41 -080034#include <linux/ctype.h>
35#include <linux/inet.h>
36#include <linux/rtnetlink.h>
Eric W. Biederman881d9662007-09-17 11:56:21 -070037#include <net/net_namespace.h>
Mitch Williamsb76cdba2005-11-09 10:36:41 -080038
39/* #define BONDING_DEBUG 1 */
40#include "bonding.h"
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -070041#define to_dev(obj) container_of(obj,struct device,kobj)
Mitch Williamsb76cdba2005-11-09 10:36:41 -080042#define to_bond(cd) ((struct bonding *)(to_net_dev(cd)->priv))
43
44/*---------------------------- Declarations -------------------------------*/
45
46
47extern struct list_head bond_dev_list;
48extern struct bond_params bonding_defaults;
49extern struct bond_parm_tbl bond_mode_tbl[];
50extern struct bond_parm_tbl bond_lacp_tbl[];
51extern struct bond_parm_tbl xmit_hashtype_tbl[];
Jay Vosburghf5b2b962006-09-22 21:54:53 -070052extern struct bond_parm_tbl arp_validate_tbl[];
Jay Vosburgh3915c1e82008-05-17 21:10:14 -070053extern struct bond_parm_tbl fail_over_mac_tbl[];
Mitch Williamsb76cdba2005-11-09 10:36:41 -080054
55static int expected_refcount = -1;
Mitch Williamsb76cdba2005-11-09 10:36:41 -080056/*--------------------------- Data Structures -----------------------------*/
57
Robert P. J. Day3a4fa0a2007-10-19 23:10:43 +020058/* Bonding sysfs lock. Why can't we just use the subsystem lock?
Mitch Williamsb76cdba2005-11-09 10:36:41 -080059 * Because kobject_register tries to acquire the subsystem lock. If
60 * we already hold the lock (which we would if the user was creating
61 * a new bond through the sysfs interface), we deadlock.
62 * This lock is only needed when deleting a bond - we need to make sure
63 * that we don't collide with an ongoing ioctl.
64 */
65
66struct rw_semaphore bonding_rwsem;
67
68
69
70
71/*------------------------------ Functions --------------------------------*/
72
73/*
74 * "show" function for the bond_masters attribute.
75 * The class parameter is ignored.
76 */
Wagner Ferencb8843662007-12-06 23:40:30 -080077static ssize_t bonding_show_bonds(struct class *cls, char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -080078{
79 int res = 0;
80 struct bonding *bond;
81
82 down_read(&(bonding_rwsem));
83
84 list_for_each_entry(bond, &bond_dev_list, bond_list) {
85 if (res > (PAGE_SIZE - IFNAMSIZ)) {
86 /* not enough space for another interface name */
87 if ((PAGE_SIZE - res) > 10)
88 res = PAGE_SIZE - 10;
Wagner Ferencb8843662007-12-06 23:40:30 -080089 res += sprintf(buf + res, "++more++ ");
Mitch Williamsb76cdba2005-11-09 10:36:41 -080090 break;
91 }
Wagner Ferencb8843662007-12-06 23:40:30 -080092 res += sprintf(buf + res, "%s ", bond->dev->name);
Mitch Williamsb76cdba2005-11-09 10:36:41 -080093 }
Wagner Ferenc1dcdcd62007-12-06 23:40:31 -080094 if (res)
95 buf[res-1] = '\n'; /* eat the leftover space */
Mitch Williamsb76cdba2005-11-09 10:36:41 -080096 up_read(&(bonding_rwsem));
97 return res;
98}
99
100/*
101 * "store" function for the bond_masters attribute. This is what
102 * creates and deletes entire bonds.
103 *
104 * The class parameter is ignored.
105 *
106 */
107
108static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t count)
109{
110 char command[IFNAMSIZ + 1] = {0, };
111 char *ifname;
Jay Vosburgh027ea042008-01-17 16:25:02 -0800112 int rv, res = count;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800113 struct bonding *bond;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800114
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800115 sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
116 ifname = command + 1;
117 if ((strlen(command) <= 1) ||
118 !dev_valid_name(ifname))
119 goto err_no_cmd;
120
121 if (command[0] == '+') {
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800122 printk(KERN_INFO DRV_NAME
123 ": %s is being created...\n", ifname);
Pavel Emelyanov0dd646f2008-05-17 21:10:09 -0700124 rv = bond_create(ifname, &bonding_defaults);
Jay Vosburgh027ea042008-01-17 16:25:02 -0800125 if (rv) {
126 printk(KERN_INFO DRV_NAME ": Bond creation failed.\n");
127 res = rv;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800128 }
129 goto out;
130 }
131
132 if (command[0] == '-') {
Jay Vosburgh027ea042008-01-17 16:25:02 -0800133 rtnl_lock();
134 down_write(&bonding_rwsem);
135
Pavel Emelyanov0883bec2008-05-17 21:10:10 -0700136 list_for_each_entry(bond, &bond_dev_list, bond_list)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800137 if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) {
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800138 /* check the ref count on the bond's kobject.
139 * If it's > expected, then there's a file open,
140 * and we have to fail.
141 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700142 if (atomic_read(&bond->dev->dev.kobj.kref.refcount)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800143 > expected_refcount){
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800144 printk(KERN_INFO DRV_NAME
145 ": Unable remove bond %s due to open references.\n",
146 ifname);
147 res = -EPERM;
Jay Vosburghc4ebc662008-05-02 17:49:38 -0700148 goto out_unlock;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800149 }
150 printk(KERN_INFO DRV_NAME
151 ": %s is being deleted...\n",
152 bond->dev->name);
Moni Shouad90a1622007-10-09 19:43:43 -0700153 bond_destroy(bond);
Jay Vosburghc4ebc662008-05-02 17:49:38 -0700154 goto out_unlock;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800155 }
156
157 printk(KERN_ERR DRV_NAME
158 ": unable to delete non-existent bond %s\n", ifname);
159 res = -ENODEV;
Jay Vosburghc4ebc662008-05-02 17:49:38 -0700160 goto out_unlock;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800161 }
162
163err_no_cmd:
164 printk(KERN_ERR DRV_NAME
165 ": no command found in bonding_masters. Use +ifname or -ifname.\n");
Jay Vosburghc4ebc662008-05-02 17:49:38 -0700166 return -EPERM;
167
168out_unlock:
169 up_write(&bonding_rwsem);
170 rtnl_unlock();
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800171
172 /* Always return either count or an error. If you return 0, you'll
173 * get called forever, which is bad.
174 */
175out:
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800176 return res;
177}
178/* class attribute for bond_masters file. This ends up in /sys/class/net */
179static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO,
180 bonding_show_bonds, bonding_store_bonds);
181
182int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave)
183{
184 char linkname[IFNAMSIZ+7];
185 int ret = 0;
186
187 /* first, create a link from the slave back to the master */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700188 ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj),
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800189 "master");
190 if (ret)
191 return ret;
192 /* next, create a link from the master to the slave */
193 sprintf(linkname,"slave_%s",slave->name);
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700194 ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj),
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800195 linkname);
196 return ret;
197
198}
199
200void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave)
201{
202 char linkname[IFNAMSIZ+7];
203
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700204 sysfs_remove_link(&(slave->dev.kobj), "master");
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800205 sprintf(linkname,"slave_%s",slave->name);
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700206 sysfs_remove_link(&(master->dev.kobj), linkname);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800207}
208
209
210/*
211 * Show the slaves in the current bond.
212 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700213static ssize_t bonding_show_slaves(struct device *d,
214 struct device_attribute *attr, char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800215{
216 struct slave *slave;
217 int i, res = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700218 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800219
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700220 read_lock(&bond->lock);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800221 bond_for_each_slave(bond, slave, i) {
222 if (res > (PAGE_SIZE - IFNAMSIZ)) {
223 /* not enough space for another interface name */
224 if ((PAGE_SIZE - res) > 10)
225 res = PAGE_SIZE - 10;
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800226 res += sprintf(buf + res, "++more++ ");
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800227 break;
228 }
229 res += sprintf(buf + res, "%s ", slave->dev->name);
230 }
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700231 read_unlock(&bond->lock);
Wagner Ferenc1dcdcd62007-12-06 23:40:31 -0800232 if (res)
233 buf[res-1] = '\n'; /* eat the leftover space */
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800234 return res;
235}
236
237/*
238 * Set the slaves in the current bond. The bond interface must be
239 * up for this to succeed.
240 * This function is largely the same flow as bonding_update_bonds().
241 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700242static ssize_t bonding_store_slaves(struct device *d,
243 struct device_attribute *attr,
244 const char *buffer, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800245{
246 char command[IFNAMSIZ + 1] = { 0, };
247 char *ifname;
248 int i, res, found, ret = count;
Moni Shoua3158bf72007-10-09 19:43:41 -0700249 u32 original_mtu;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800250 struct slave *slave;
Luiz Fernando Capitulino3418db72006-02-01 00:54:34 -0800251 struct net_device *dev = NULL;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700252 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800253
254 /* Quick sanity check -- is the bond interface up? */
255 if (!(bond->dev->flags & IFF_UP)) {
Moni Shoua6b1bf092007-10-09 19:43:40 -0700256 printk(KERN_WARNING DRV_NAME
257 ": %s: doing slave updates when interface is down.\n",
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800258 bond->dev->name);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800259 }
260
261 /* Note: We can't hold bond->lock here, as bond_create grabs it. */
262
Jay Vosburgh027ea042008-01-17 16:25:02 -0800263 rtnl_lock();
264 down_write(&(bonding_rwsem));
265
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800266 sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
267 ifname = command + 1;
268 if ((strlen(command) <= 1) ||
269 !dev_valid_name(ifname))
270 goto err_no_cmd;
271
272 if (command[0] == '+') {
273
274 /* Got a slave name in ifname. Is it already in the list? */
275 found = 0;
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700276 read_lock(&bond->lock);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800277 bond_for_each_slave(bond, slave, i)
278 if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
279 printk(KERN_ERR DRV_NAME
280 ": %s: Interface %s is already enslaved!\n",
281 bond->dev->name, ifname);
282 ret = -EPERM;
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700283 read_unlock(&bond->lock);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800284 goto out;
285 }
286
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700287 read_unlock(&bond->lock);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800288 printk(KERN_INFO DRV_NAME ": %s: Adding slave %s.\n",
289 bond->dev->name, ifname);
Eric W. Biederman881d9662007-09-17 11:56:21 -0700290 dev = dev_get_by_name(&init_net, ifname);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800291 if (!dev) {
292 printk(KERN_INFO DRV_NAME
293 ": %s: Interface %s does not exist!\n",
294 bond->dev->name, ifname);
295 ret = -EPERM;
296 goto out;
297 }
298 else
299 dev_put(dev);
300
301 if (dev->flags & IFF_UP) {
302 printk(KERN_ERR DRV_NAME
303 ": %s: Error: Unable to enslave %s "
304 "because it is already up.\n",
305 bond->dev->name, dev->name);
306 ret = -EPERM;
307 goto out;
308 }
309 /* If this is the first slave, then we need to set
310 the master's hardware address to be the same as the
311 slave's. */
312 if (!(*((u32 *) & (bond->dev->dev_addr[0])))) {
313 memcpy(bond->dev->dev_addr, dev->dev_addr,
314 dev->addr_len);
315 }
316
317 /* Set the slave's MTU to match the bond */
Moni Shoua3158bf72007-10-09 19:43:41 -0700318 original_mtu = dev->mtu;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800319 if (dev->mtu != bond->dev->mtu) {
320 if (dev->change_mtu) {
321 res = dev->change_mtu(dev,
322 bond->dev->mtu);
323 if (res) {
324 ret = res;
325 goto out;
326 }
327 } else {
328 dev->mtu = bond->dev->mtu;
329 }
330 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800331 res = bond_enslave(bond->dev, dev);
Moni Shoua3158bf72007-10-09 19:43:41 -0700332 bond_for_each_slave(bond, slave, i)
333 if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0)
334 slave->original_mtu = original_mtu;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800335 if (res) {
336 ret = res;
337 }
338 goto out;
339 }
340
341 if (command[0] == '-') {
342 dev = NULL;
David S. Miller6952d8922008-03-28 16:15:38 -0700343 original_mtu = 0;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800344 bond_for_each_slave(bond, slave, i)
345 if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
346 dev = slave->dev;
Moni Shoua3158bf72007-10-09 19:43:41 -0700347 original_mtu = slave->original_mtu;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800348 break;
349 }
350 if (dev) {
351 printk(KERN_INFO DRV_NAME ": %s: Removing slave %s\n",
352 bond->dev->name, dev->name);
Moni Shouad90a1622007-10-09 19:43:43 -0700353 res = bond_release(bond->dev, dev);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800354 if (res) {
355 ret = res;
356 goto out;
357 }
358 /* set the slave MTU to the default */
359 if (dev->change_mtu) {
Moni Shoua3158bf72007-10-09 19:43:41 -0700360 dev->change_mtu(dev, original_mtu);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800361 } else {
Moni Shoua3158bf72007-10-09 19:43:41 -0700362 dev->mtu = original_mtu;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800363 }
364 }
365 else {
366 printk(KERN_ERR DRV_NAME ": unable to remove non-existent slave %s for bond %s.\n",
367 ifname, bond->dev->name);
368 ret = -ENODEV;
369 }
370 goto out;
371 }
372
373err_no_cmd:
374 printk(KERN_ERR DRV_NAME ": no command found in slaves file for bond %s. Use +ifname or -ifname.\n", bond->dev->name);
375 ret = -EPERM;
376
377out:
Jay Vosburgh027ea042008-01-17 16:25:02 -0800378 up_write(&(bonding_rwsem));
379 rtnl_unlock();
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800380 return ret;
381}
382
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700383static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, bonding_store_slaves);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800384
385/*
386 * Show and set the bonding mode. The bond interface must be down to
387 * change the mode.
388 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700389static ssize_t bonding_show_mode(struct device *d,
390 struct device_attribute *attr, char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800391{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700392 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800393
394 return sprintf(buf, "%s %d\n",
395 bond_mode_tbl[bond->params.mode].modename,
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800396 bond->params.mode);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800397}
398
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700399static ssize_t bonding_store_mode(struct device *d,
400 struct device_attribute *attr,
401 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800402{
403 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700404 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800405
406 if (bond->dev->flags & IFF_UP) {
407 printk(KERN_ERR DRV_NAME
408 ": unable to update mode of %s because interface is up.\n",
409 bond->dev->name);
410 ret = -EPERM;
411 goto out;
412 }
413
Jay Vosburghece95f72008-01-17 16:25:01 -0800414 new_value = bond_parse_parm(buf, bond_mode_tbl);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800415 if (new_value < 0) {
416 printk(KERN_ERR DRV_NAME
417 ": %s: Ignoring invalid mode value %.*s.\n",
418 bond->dev->name,
419 (int)strlen(buf) - 1, buf);
420 ret = -EINVAL;
421 goto out;
422 } else {
Jay Vosburgh8f903c72006-02-21 16:36:44 -0800423 if (bond->params.mode == BOND_MODE_8023AD)
424 bond_unset_master_3ad_flags(bond);
425
426 if (bond->params.mode == BOND_MODE_ALB)
427 bond_unset_master_alb_flags(bond);
428
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800429 bond->params.mode = new_value;
430 bond_set_mode_ops(bond, bond->params.mode);
431 printk(KERN_INFO DRV_NAME ": %s: setting mode to %s (%d).\n",
432 bond->dev->name, bond_mode_tbl[new_value].modename, new_value);
433 }
434out:
435 return ret;
436}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700437static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, bonding_show_mode, bonding_store_mode);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800438
439/*
440 * Show and set the bonding transmit hash method. The bond interface must be down to
441 * change the xmit hash policy.
442 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700443static ssize_t bonding_show_xmit_hash(struct device *d,
444 struct device_attribute *attr,
445 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800446{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700447 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800448
Wagner Ferenc8e4b9322007-12-06 23:40:32 -0800449 return sprintf(buf, "%s %d\n",
450 xmit_hashtype_tbl[bond->params.xmit_policy].modename,
451 bond->params.xmit_policy);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800452}
453
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700454static ssize_t bonding_store_xmit_hash(struct device *d,
455 struct device_attribute *attr,
456 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800457{
458 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700459 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800460
461 if (bond->dev->flags & IFF_UP) {
462 printk(KERN_ERR DRV_NAME
463 "%s: Interface is up. Unable to update xmit policy.\n",
464 bond->dev->name);
465 ret = -EPERM;
466 goto out;
467 }
468
Jay Vosburghece95f72008-01-17 16:25:01 -0800469 new_value = bond_parse_parm(buf, xmit_hashtype_tbl);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800470 if (new_value < 0) {
471 printk(KERN_ERR DRV_NAME
472 ": %s: Ignoring invalid xmit hash policy value %.*s.\n",
473 bond->dev->name,
474 (int)strlen(buf) - 1, buf);
475 ret = -EINVAL;
476 goto out;
477 } else {
478 bond->params.xmit_policy = new_value;
479 bond_set_mode_ops(bond, bond->params.mode);
480 printk(KERN_INFO DRV_NAME ": %s: setting xmit hash policy to %s (%d).\n",
481 bond->dev->name, xmit_hashtype_tbl[new_value].modename, new_value);
482 }
483out:
484 return ret;
485}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700486static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, bonding_show_xmit_hash, bonding_store_xmit_hash);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800487
488/*
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700489 * Show and set arp_validate.
490 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700491static ssize_t bonding_show_arp_validate(struct device *d,
492 struct device_attribute *attr,
493 char *buf)
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700494{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700495 struct bonding *bond = to_bond(d);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700496
497 return sprintf(buf, "%s %d\n",
498 arp_validate_tbl[bond->params.arp_validate].modename,
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800499 bond->params.arp_validate);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700500}
501
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700502static ssize_t bonding_store_arp_validate(struct device *d,
503 struct device_attribute *attr,
504 const char *buf, size_t count)
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700505{
506 int new_value;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700507 struct bonding *bond = to_bond(d);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700508
Jay Vosburghece95f72008-01-17 16:25:01 -0800509 new_value = bond_parse_parm(buf, arp_validate_tbl);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700510 if (new_value < 0) {
511 printk(KERN_ERR DRV_NAME
512 ": %s: Ignoring invalid arp_validate value %s\n",
513 bond->dev->name, buf);
514 return -EINVAL;
515 }
516 if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) {
517 printk(KERN_ERR DRV_NAME
518 ": %s: arp_validate only supported in active-backup mode.\n",
519 bond->dev->name);
520 return -EINVAL;
521 }
522 printk(KERN_INFO DRV_NAME ": %s: setting arp_validate to %s (%d).\n",
523 bond->dev->name, arp_validate_tbl[new_value].modename,
524 new_value);
525
526 if (!bond->params.arp_validate && new_value) {
527 bond_register_arp(bond);
528 } else if (bond->params.arp_validate && !new_value) {
529 bond_unregister_arp(bond);
530 }
531
532 bond->params.arp_validate = new_value;
533
534 return count;
535}
536
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700537static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, bonding_store_arp_validate);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700538
539/*
Jay Vosburghdd957c52007-10-09 19:57:24 -0700540 * Show and store fail_over_mac. User only allowed to change the
541 * value when there are no slaves.
542 */
543static ssize_t bonding_show_fail_over_mac(struct device *d, struct device_attribute *attr, char *buf)
544{
545 struct bonding *bond = to_bond(d);
546
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700547 return sprintf(buf, "%s %d\n",
548 fail_over_mac_tbl[bond->params.fail_over_mac].modename,
549 bond->params.fail_over_mac);
Jay Vosburghdd957c52007-10-09 19:57:24 -0700550}
551
552static ssize_t bonding_store_fail_over_mac(struct device *d, struct device_attribute *attr, const char *buf, size_t count)
553{
554 int new_value;
Jay Vosburghdd957c52007-10-09 19:57:24 -0700555 struct bonding *bond = to_bond(d);
556
557 if (bond->slave_cnt != 0) {
558 printk(KERN_ERR DRV_NAME
559 ": %s: Can't alter fail_over_mac with slaves in bond.\n",
560 bond->dev->name);
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700561 return -EPERM;
Jay Vosburghdd957c52007-10-09 19:57:24 -0700562 }
563
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700564 new_value = bond_parse_parm(buf, fail_over_mac_tbl);
565 if (new_value < 0) {
Jay Vosburghdd957c52007-10-09 19:57:24 -0700566 printk(KERN_ERR DRV_NAME
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700567 ": %s: Ignoring invalid fail_over_mac value %s.\n",
568 bond->dev->name, buf);
569 return -EINVAL;
Jay Vosburghdd957c52007-10-09 19:57:24 -0700570 }
571
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700572 bond->params.fail_over_mac = new_value;
573 printk(KERN_INFO DRV_NAME ": %s: Setting fail_over_mac to %s (%d).\n",
574 bond->dev->name, fail_over_mac_tbl[new_value].modename,
575 new_value);
576
577 return count;
Jay Vosburghdd957c52007-10-09 19:57:24 -0700578}
579
580static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, bonding_show_fail_over_mac, bonding_store_fail_over_mac);
581
582/*
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800583 * Show and set the arp timer interval. There are two tricky bits
584 * here. First, if ARP monitoring is activated, then we must disable
585 * MII monitoring. Second, if the ARP timer isn't running, we must
586 * start it.
587 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700588static ssize_t bonding_show_arp_interval(struct device *d,
589 struct device_attribute *attr,
590 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800591{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700592 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800593
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800594 return sprintf(buf, "%d\n", bond->params.arp_interval);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800595}
596
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700597static ssize_t bonding_store_arp_interval(struct device *d,
598 struct device_attribute *attr,
599 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800600{
601 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700602 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800603
604 if (sscanf(buf, "%d", &new_value) != 1) {
605 printk(KERN_ERR DRV_NAME
606 ": %s: no arp_interval value specified.\n",
607 bond->dev->name);
608 ret = -EINVAL;
609 goto out;
610 }
611 if (new_value < 0) {
612 printk(KERN_ERR DRV_NAME
613 ": %s: Invalid arp_interval value %d not in range 1-%d; rejected.\n",
614 bond->dev->name, new_value, INT_MAX);
615 ret = -EINVAL;
616 goto out;
617 }
618
619 printk(KERN_INFO DRV_NAME
620 ": %s: Setting ARP monitoring interval to %d.\n",
621 bond->dev->name, new_value);
622 bond->params.arp_interval = new_value;
623 if (bond->params.miimon) {
624 printk(KERN_INFO DRV_NAME
625 ": %s: ARP monitoring cannot be used with MII monitoring. "
626 "%s Disabling MII monitoring.\n",
627 bond->dev->name, bond->dev->name);
628 bond->params.miimon = 0;
Jay Vosburgh1b76b312007-10-17 17:37:45 -0700629 if (delayed_work_pending(&bond->mii_work)) {
630 cancel_delayed_work(&bond->mii_work);
631 flush_workqueue(bond->wq);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800632 }
633 }
634 if (!bond->params.arp_targets[0]) {
635 printk(KERN_INFO DRV_NAME
636 ": %s: ARP monitoring has been set up, "
637 "but no ARP targets have been specified.\n",
638 bond->dev->name);
639 }
640 if (bond->dev->flags & IFF_UP) {
641 /* If the interface is up, we may need to fire off
642 * the ARP timer. If the interface is down, the
643 * timer will get fired off when the open function
644 * is called.
645 */
Jay Vosburgh1b76b312007-10-17 17:37:45 -0700646 if (!delayed_work_pending(&bond->arp_work)) {
647 if (bond->params.mode == BOND_MODE_ACTIVEBACKUP)
648 INIT_DELAYED_WORK(&bond->arp_work,
649 bond_activebackup_arp_mon);
650 else
651 INIT_DELAYED_WORK(&bond->arp_work,
652 bond_loadbalance_arp_mon);
653
654 queue_delayed_work(bond->wq, &bond->arp_work, 0);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800655 }
656 }
657
658out:
659 return ret;
660}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700661static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR , bonding_show_arp_interval, bonding_store_arp_interval);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800662
663/*
664 * Show and set the arp targets.
665 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700666static ssize_t bonding_show_arp_targets(struct device *d,
667 struct device_attribute *attr,
668 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800669{
670 int i, res = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700671 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800672
673 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
674 if (bond->params.arp_targets[i])
Harvey Harrison63779432008-10-31 00:56:00 -0700675 res += sprintf(buf + res, "%pI4 ",
676 &bond->params.arp_targets[i]);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800677 }
Wagner Ferenc1dcdcd62007-12-06 23:40:31 -0800678 if (res)
679 buf[res-1] = '\n'; /* eat the leftover space */
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800680 return res;
681}
682
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700683static ssize_t bonding_store_arp_targets(struct device *d,
684 struct device_attribute *attr,
685 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800686{
Al Virod3bb52b2007-08-22 20:06:58 -0400687 __be32 newtarget;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800688 int i = 0, done = 0, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700689 struct bonding *bond = to_bond(d);
Al Virod3bb52b2007-08-22 20:06:58 -0400690 __be32 *targets;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800691
692 targets = bond->params.arp_targets;
693 newtarget = in_aton(buf + 1);
694 /* look for adds */
695 if (buf[0] == '+') {
Al Virod3bb52b2007-08-22 20:06:58 -0400696 if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800697 printk(KERN_ERR DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700698 ": %s: invalid ARP target %pI4 specified for addition\n",
699 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800700 ret = -EINVAL;
701 goto out;
702 }
703 /* look for an empty slot to put the target in, and check for dupes */
704 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
705 if (targets[i] == newtarget) { /* duplicate */
706 printk(KERN_ERR DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700707 ": %s: ARP target %pI4 is already present\n",
708 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800709 if (done)
710 targets[i] = 0;
711 ret = -EINVAL;
712 goto out;
713 }
714 if (targets[i] == 0 && !done) {
715 printk(KERN_INFO DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700716 ": %s: adding ARP target %pI4.\n",
717 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800718 done = 1;
719 targets[i] = newtarget;
720 }
721 }
722 if (!done) {
723 printk(KERN_ERR DRV_NAME
724 ": %s: ARP target table is full!\n",
725 bond->dev->name);
726 ret = -EINVAL;
727 goto out;
728 }
729
730 }
731 else if (buf[0] == '-') {
Al Virod3bb52b2007-08-22 20:06:58 -0400732 if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800733 printk(KERN_ERR DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700734 ": %s: invalid ARP target %pI4 specified for removal\n",
735 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800736 ret = -EINVAL;
737 goto out;
738 }
739
740 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
741 if (targets[i] == newtarget) {
742 printk(KERN_INFO DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700743 ": %s: removing ARP target %pI4.\n",
744 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800745 targets[i] = 0;
746 done = 1;
747 }
748 }
749 if (!done) {
750 printk(KERN_INFO DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700751 ": %s: unable to remove nonexistent ARP target %pI4.\n",
752 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800753 ret = -EINVAL;
754 goto out;
755 }
756 }
757 else {
758 printk(KERN_ERR DRV_NAME ": no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n",
759 bond->dev->name);
760 ret = -EPERM;
761 goto out;
762 }
763
764out:
765 return ret;
766}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700767static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800768
769/*
770 * Show and set the up and down delays. These must be multiples of the
771 * MII monitoring value, and are stored internally as the multiplier.
772 * Thus, we must translate to MS for the real world.
773 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700774static ssize_t bonding_show_downdelay(struct device *d,
775 struct device_attribute *attr,
776 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800777{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700778 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800779
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800780 return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800781}
782
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700783static ssize_t bonding_store_downdelay(struct device *d,
784 struct device_attribute *attr,
785 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800786{
787 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700788 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800789
790 if (!(bond->params.miimon)) {
791 printk(KERN_ERR DRV_NAME
792 ": %s: Unable to set down delay as MII monitoring is disabled\n",
793 bond->dev->name);
794 ret = -EPERM;
795 goto out;
796 }
797
798 if (sscanf(buf, "%d", &new_value) != 1) {
799 printk(KERN_ERR DRV_NAME
800 ": %s: no down delay value specified.\n",
801 bond->dev->name);
802 ret = -EINVAL;
803 goto out;
804 }
805 if (new_value < 0) {
806 printk(KERN_ERR DRV_NAME
807 ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n",
808 bond->dev->name, new_value, 1, INT_MAX);
809 ret = -EINVAL;
810 goto out;
811 } else {
812 if ((new_value % bond->params.miimon) != 0) {
813 printk(KERN_WARNING DRV_NAME
814 ": %s: Warning: down delay (%d) is not a multiple "
815 "of miimon (%d), delay rounded to %d ms\n",
816 bond->dev->name, new_value, bond->params.miimon,
817 (new_value / bond->params.miimon) *
818 bond->params.miimon);
819 }
820 bond->params.downdelay = new_value / bond->params.miimon;
821 printk(KERN_INFO DRV_NAME ": %s: Setting down delay to %d.\n",
822 bond->dev->name, bond->params.downdelay * bond->params.miimon);
823
824 }
825
826out:
827 return ret;
828}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700829static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR , bonding_show_downdelay, bonding_store_downdelay);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800830
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700831static ssize_t bonding_show_updelay(struct device *d,
832 struct device_attribute *attr,
833 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800834{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700835 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800836
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800837 return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800838
839}
840
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700841static ssize_t bonding_store_updelay(struct device *d,
842 struct device_attribute *attr,
843 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800844{
845 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700846 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800847
848 if (!(bond->params.miimon)) {
849 printk(KERN_ERR DRV_NAME
850 ": %s: Unable to set up delay as MII monitoring is disabled\n",
851 bond->dev->name);
852 ret = -EPERM;
853 goto out;
854 }
855
856 if (sscanf(buf, "%d", &new_value) != 1) {
857 printk(KERN_ERR DRV_NAME
858 ": %s: no up delay value specified.\n",
859 bond->dev->name);
860 ret = -EINVAL;
861 goto out;
862 }
863 if (new_value < 0) {
864 printk(KERN_ERR DRV_NAME
865 ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n",
866 bond->dev->name, new_value, 1, INT_MAX);
867 ret = -EINVAL;
868 goto out;
869 } else {
870 if ((new_value % bond->params.miimon) != 0) {
871 printk(KERN_WARNING DRV_NAME
872 ": %s: Warning: up delay (%d) is not a multiple "
873 "of miimon (%d), updelay rounded to %d ms\n",
874 bond->dev->name, new_value, bond->params.miimon,
875 (new_value / bond->params.miimon) *
876 bond->params.miimon);
877 }
878 bond->params.updelay = new_value / bond->params.miimon;
879 printk(KERN_INFO DRV_NAME ": %s: Setting up delay to %d.\n",
880 bond->dev->name, bond->params.updelay * bond->params.miimon);
881
882 }
883
884out:
885 return ret;
886}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700887static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR , bonding_show_updelay, bonding_store_updelay);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800888
889/*
890 * Show and set the LACP interval. Interface must be down, and the mode
891 * must be set to 802.3ad mode.
892 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700893static ssize_t bonding_show_lacp(struct device *d,
894 struct device_attribute *attr,
895 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800896{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700897 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800898
899 return sprintf(buf, "%s %d\n",
900 bond_lacp_tbl[bond->params.lacp_fast].modename,
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800901 bond->params.lacp_fast);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800902}
903
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700904static ssize_t bonding_store_lacp(struct device *d,
905 struct device_attribute *attr,
906 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800907{
908 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700909 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800910
911 if (bond->dev->flags & IFF_UP) {
912 printk(KERN_ERR DRV_NAME
913 ": %s: Unable to update LACP rate because interface is up.\n",
914 bond->dev->name);
915 ret = -EPERM;
916 goto out;
917 }
918
919 if (bond->params.mode != BOND_MODE_8023AD) {
920 printk(KERN_ERR DRV_NAME
921 ": %s: Unable to update LACP rate because bond is not in 802.3ad mode.\n",
922 bond->dev->name);
923 ret = -EPERM;
924 goto out;
925 }
926
Jay Vosburghece95f72008-01-17 16:25:01 -0800927 new_value = bond_parse_parm(buf, bond_lacp_tbl);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800928
929 if ((new_value == 1) || (new_value == 0)) {
930 bond->params.lacp_fast = new_value;
931 printk(KERN_INFO DRV_NAME
932 ": %s: Setting LACP rate to %s (%d).\n",
933 bond->dev->name, bond_lacp_tbl[new_value].modename, new_value);
934 } else {
935 printk(KERN_ERR DRV_NAME
936 ": %s: Ignoring invalid LACP rate value %.*s.\n",
937 bond->dev->name, (int)strlen(buf) - 1, buf);
938 ret = -EINVAL;
939 }
940out:
941 return ret;
942}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700943static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, bonding_show_lacp, bonding_store_lacp);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800944
945/*
Moni Shoua7893b242008-05-17 21:10:12 -0700946 * Show and set the number of grat ARP to send after a failover event.
947 */
948static ssize_t bonding_show_n_grat_arp(struct device *d,
949 struct device_attribute *attr,
950 char *buf)
951{
952 struct bonding *bond = to_bond(d);
953
954 return sprintf(buf, "%d\n", bond->params.num_grat_arp);
955}
956
957static ssize_t bonding_store_n_grat_arp(struct device *d,
958 struct device_attribute *attr,
959 const char *buf, size_t count)
960{
961 int new_value, ret = count;
962 struct bonding *bond = to_bond(d);
963
964 if (sscanf(buf, "%d", &new_value) != 1) {
965 printk(KERN_ERR DRV_NAME
966 ": %s: no num_grat_arp value specified.\n",
967 bond->dev->name);
968 ret = -EINVAL;
969 goto out;
970 }
971 if (new_value < 0 || new_value > 255) {
972 printk(KERN_ERR DRV_NAME
973 ": %s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n",
974 bond->dev->name, new_value);
975 ret = -EINVAL;
976 goto out;
977 } else {
978 bond->params.num_grat_arp = new_value;
979 }
980out:
981 return ret;
982}
983static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, bonding_show_n_grat_arp, bonding_store_n_grat_arp);
984/*
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800985 * Show and set the MII monitor interval. There are two tricky bits
986 * here. First, if MII monitoring is activated, then we must disable
987 * ARP monitoring. Second, if the timer isn't running, we must
988 * start it.
989 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700990static ssize_t bonding_show_miimon(struct device *d,
991 struct device_attribute *attr,
992 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800993{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700994 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800995
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800996 return sprintf(buf, "%d\n", bond->params.miimon);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800997}
998
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700999static ssize_t bonding_store_miimon(struct device *d,
1000 struct device_attribute *attr,
1001 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001002{
1003 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001004 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001005
1006 if (sscanf(buf, "%d", &new_value) != 1) {
1007 printk(KERN_ERR DRV_NAME
1008 ": %s: no miimon value specified.\n",
1009 bond->dev->name);
1010 ret = -EINVAL;
1011 goto out;
1012 }
1013 if (new_value < 0) {
1014 printk(KERN_ERR DRV_NAME
1015 ": %s: Invalid miimon value %d not in range %d-%d; rejected.\n",
1016 bond->dev->name, new_value, 1, INT_MAX);
1017 ret = -EINVAL;
1018 goto out;
1019 } else {
1020 printk(KERN_INFO DRV_NAME
1021 ": %s: Setting MII monitoring interval to %d.\n",
1022 bond->dev->name, new_value);
1023 bond->params.miimon = new_value;
1024 if(bond->params.updelay)
1025 printk(KERN_INFO DRV_NAME
1026 ": %s: Note: Updating updelay (to %d) "
1027 "since it is a multiple of the miimon value.\n",
1028 bond->dev->name,
1029 bond->params.updelay * bond->params.miimon);
1030 if(bond->params.downdelay)
1031 printk(KERN_INFO DRV_NAME
1032 ": %s: Note: Updating downdelay (to %d) "
1033 "since it is a multiple of the miimon value.\n",
1034 bond->dev->name,
1035 bond->params.downdelay * bond->params.miimon);
1036 if (bond->params.arp_interval) {
1037 printk(KERN_INFO DRV_NAME
1038 ": %s: MII monitoring cannot be used with "
1039 "ARP monitoring. Disabling ARP monitoring...\n",
1040 bond->dev->name);
1041 bond->params.arp_interval = 0;
Jay Vosburghf5b2b962006-09-22 21:54:53 -07001042 if (bond->params.arp_validate) {
1043 bond_unregister_arp(bond);
1044 bond->params.arp_validate =
1045 BOND_ARP_VALIDATE_NONE;
1046 }
Jay Vosburgh1b76b312007-10-17 17:37:45 -07001047 if (delayed_work_pending(&bond->arp_work)) {
1048 cancel_delayed_work(&bond->arp_work);
1049 flush_workqueue(bond->wq);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001050 }
1051 }
1052
1053 if (bond->dev->flags & IFF_UP) {
1054 /* If the interface is up, we may need to fire off
1055 * the MII timer. If the interface is down, the
1056 * timer will get fired off when the open function
1057 * is called.
1058 */
Jay Vosburgh1b76b312007-10-17 17:37:45 -07001059 if (!delayed_work_pending(&bond->mii_work)) {
1060 INIT_DELAYED_WORK(&bond->mii_work,
1061 bond_mii_monitor);
1062 queue_delayed_work(bond->wq,
1063 &bond->mii_work, 0);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001064 }
1065 }
1066 }
1067out:
1068 return ret;
1069}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001070static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, bonding_show_miimon, bonding_store_miimon);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001071
1072/*
1073 * Show and set the primary slave. The store function is much
1074 * simpler than bonding_store_slaves function because it only needs to
1075 * handle one interface name.
1076 * The bond must be a mode that supports a primary for this be
1077 * set.
1078 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001079static ssize_t bonding_show_primary(struct device *d,
1080 struct device_attribute *attr,
1081 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001082{
1083 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001084 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001085
1086 if (bond->primary_slave)
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001087 count = sprintf(buf, "%s\n", bond->primary_slave->dev->name);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001088
1089 return count;
1090}
1091
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001092static ssize_t bonding_store_primary(struct device *d,
1093 struct device_attribute *attr,
1094 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001095{
1096 int i;
1097 struct slave *slave;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001098 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001099
Jay Vosburghe934dd72008-01-17 16:24:57 -08001100 rtnl_lock();
1101 read_lock(&bond->lock);
1102 write_lock_bh(&bond->curr_slave_lock);
1103
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001104 if (!USES_PRIMARY(bond->params.mode)) {
1105 printk(KERN_INFO DRV_NAME
1106 ": %s: Unable to set primary slave; %s is in mode %d\n",
1107 bond->dev->name, bond->dev->name, bond->params.mode);
1108 } else {
1109 bond_for_each_slave(bond, slave, i) {
1110 if (strnicmp
1111 (slave->dev->name, buf,
1112 strlen(slave->dev->name)) == 0) {
1113 printk(KERN_INFO DRV_NAME
1114 ": %s: Setting %s as primary slave.\n",
1115 bond->dev->name, slave->dev->name);
1116 bond->primary_slave = slave;
1117 bond_select_active_slave(bond);
1118 goto out;
1119 }
1120 }
1121
1122 /* if we got here, then we didn't match the name of any slave */
1123
1124 if (strlen(buf) == 0 || buf[0] == '\n') {
1125 printk(KERN_INFO DRV_NAME
1126 ": %s: Setting primary slave to None.\n",
1127 bond->dev->name);
Luiz Fernando Capitulino3418db72006-02-01 00:54:34 -08001128 bond->primary_slave = NULL;
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001129 bond_select_active_slave(bond);
1130 } else {
1131 printk(KERN_INFO DRV_NAME
1132 ": %s: Unable to set %.*s as primary slave as it is not a slave.\n",
1133 bond->dev->name, (int)strlen(buf) - 1, buf);
1134 }
1135 }
1136out:
Jay Vosburghe934dd72008-01-17 16:24:57 -08001137 write_unlock_bh(&bond->curr_slave_lock);
1138 read_unlock(&bond->lock);
Jay Vosburgh6603a6f2007-10-17 17:37:50 -07001139 rtnl_unlock();
1140
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001141 return count;
1142}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001143static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, bonding_show_primary, bonding_store_primary);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001144
1145/*
1146 * Show and set the use_carrier flag.
1147 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001148static ssize_t bonding_show_carrier(struct device *d,
1149 struct device_attribute *attr,
1150 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001151{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001152 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001153
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001154 return sprintf(buf, "%d\n", bond->params.use_carrier);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001155}
1156
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001157static ssize_t bonding_store_carrier(struct device *d,
1158 struct device_attribute *attr,
1159 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001160{
1161 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001162 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001163
1164
1165 if (sscanf(buf, "%d", &new_value) != 1) {
1166 printk(KERN_ERR DRV_NAME
1167 ": %s: no use_carrier value specified.\n",
1168 bond->dev->name);
1169 ret = -EINVAL;
1170 goto out;
1171 }
1172 if ((new_value == 0) || (new_value == 1)) {
1173 bond->params.use_carrier = new_value;
1174 printk(KERN_INFO DRV_NAME ": %s: Setting use_carrier to %d.\n",
1175 bond->dev->name, new_value);
1176 } else {
1177 printk(KERN_INFO DRV_NAME
1178 ": %s: Ignoring invalid use_carrier value %d.\n",
1179 bond->dev->name, new_value);
1180 }
1181out:
1182 return count;
1183}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001184static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, bonding_show_carrier, bonding_store_carrier);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001185
1186
1187/*
1188 * Show and set currently active_slave.
1189 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001190static ssize_t bonding_show_active_slave(struct device *d,
1191 struct device_attribute *attr,
1192 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001193{
1194 struct slave *curr;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001195 struct bonding *bond = to_bond(d);
Wagner Ferenc16cd0162007-12-06 23:40:29 -08001196 int count = 0;
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001197
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001198 read_lock(&bond->curr_slave_lock);
1199 curr = bond->curr_active_slave;
1200 read_unlock(&bond->curr_slave_lock);
1201
1202 if (USES_PRIMARY(bond->params.mode) && curr)
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001203 count = sprintf(buf, "%s\n", curr->dev->name);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001204 return count;
1205}
1206
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001207static ssize_t bonding_store_active_slave(struct device *d,
1208 struct device_attribute *attr,
1209 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001210{
1211 int i;
1212 struct slave *slave;
1213 struct slave *old_active = NULL;
1214 struct slave *new_active = NULL;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001215 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001216
Jay Vosburgh1466a212007-11-06 13:33:28 -08001217 rtnl_lock();
Jay Vosburghe934dd72008-01-17 16:24:57 -08001218 read_lock(&bond->lock);
1219 write_lock_bh(&bond->curr_slave_lock);
Jay Vosburgh1466a212007-11-06 13:33:28 -08001220
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001221 if (!USES_PRIMARY(bond->params.mode)) {
1222 printk(KERN_INFO DRV_NAME
1223 ": %s: Unable to change active slave; %s is in mode %d\n",
1224 bond->dev->name, bond->dev->name, bond->params.mode);
1225 } else {
1226 bond_for_each_slave(bond, slave, i) {
1227 if (strnicmp
1228 (slave->dev->name, buf,
1229 strlen(slave->dev->name)) == 0) {
1230 old_active = bond->curr_active_slave;
1231 new_active = slave;
Jay Vosburgha50d8de2006-09-22 21:53:25 -07001232 if (new_active == old_active) {
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001233 /* do nothing */
1234 printk(KERN_INFO DRV_NAME
1235 ": %s: %s is already the current active slave.\n",
1236 bond->dev->name, slave->dev->name);
1237 goto out;
1238 }
1239 else {
1240 if ((new_active) &&
1241 (old_active) &&
1242 (new_active->link == BOND_LINK_UP) &&
1243 IS_UP(new_active->dev)) {
1244 printk(KERN_INFO DRV_NAME
1245 ": %s: Setting %s as active slave.\n",
1246 bond->dev->name, slave->dev->name);
1247 bond_change_active_slave(bond, new_active);
1248 }
1249 else {
1250 printk(KERN_INFO DRV_NAME
1251 ": %s: Could not set %s as active slave; "
1252 "either %s is down or the link is down.\n",
1253 bond->dev->name, slave->dev->name,
1254 slave->dev->name);
1255 }
1256 goto out;
1257 }
1258 }
1259 }
1260
1261 /* if we got here, then we didn't match the name of any slave */
1262
1263 if (strlen(buf) == 0 || buf[0] == '\n') {
1264 printk(KERN_INFO DRV_NAME
1265 ": %s: Setting active slave to None.\n",
1266 bond->dev->name);
Luiz Fernando Capitulino3418db72006-02-01 00:54:34 -08001267 bond->primary_slave = NULL;
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001268 bond_select_active_slave(bond);
1269 } else {
1270 printk(KERN_INFO DRV_NAME
1271 ": %s: Unable to set %.*s as active slave as it is not a slave.\n",
1272 bond->dev->name, (int)strlen(buf) - 1, buf);
1273 }
1274 }
1275out:
Jay Vosburghe934dd72008-01-17 16:24:57 -08001276 write_unlock_bh(&bond->curr_slave_lock);
1277 read_unlock(&bond->lock);
Jay Vosburgh6603a6f2007-10-17 17:37:50 -07001278 rtnl_unlock();
1279
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001280 return count;
1281
1282}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001283static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, bonding_show_active_slave, bonding_store_active_slave);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001284
1285
1286/*
1287 * Show link status of the bond interface.
1288 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001289static ssize_t bonding_show_mii_status(struct device *d,
1290 struct device_attribute *attr,
1291 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001292{
1293 struct slave *curr;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001294 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001295
1296 read_lock(&bond->curr_slave_lock);
1297 curr = bond->curr_active_slave;
1298 read_unlock(&bond->curr_slave_lock);
1299
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001300 return sprintf(buf, "%s\n", (curr) ? "up" : "down");
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001301}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001302static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001303
1304
1305/*
1306 * Show current 802.3ad aggregator ID.
1307 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001308static ssize_t bonding_show_ad_aggregator(struct device *d,
1309 struct device_attribute *attr,
1310 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001311{
1312 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001313 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001314
1315 if (bond->params.mode == BOND_MODE_8023AD) {
1316 struct ad_info ad_info;
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001317 count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.aggregator_id);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001318 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001319
1320 return count;
1321}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001322static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001323
1324
1325/*
1326 * Show number of active 802.3ad ports.
1327 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001328static ssize_t bonding_show_ad_num_ports(struct device *d,
1329 struct device_attribute *attr,
1330 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001331{
1332 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001333 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001334
1335 if (bond->params.mode == BOND_MODE_8023AD) {
1336 struct ad_info ad_info;
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001337 count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0: ad_info.ports);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001338 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001339
1340 return count;
1341}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001342static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001343
1344
1345/*
1346 * Show current 802.3ad actor key.
1347 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001348static ssize_t bonding_show_ad_actor_key(struct device *d,
1349 struct device_attribute *attr,
1350 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001351{
1352 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001353 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001354
1355 if (bond->params.mode == BOND_MODE_8023AD) {
1356 struct ad_info ad_info;
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001357 count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.actor_key);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001358 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001359
1360 return count;
1361}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001362static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001363
1364
1365/*
1366 * Show current 802.3ad partner key.
1367 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001368static ssize_t bonding_show_ad_partner_key(struct device *d,
1369 struct device_attribute *attr,
1370 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001371{
1372 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001373 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001374
1375 if (bond->params.mode == BOND_MODE_8023AD) {
1376 struct ad_info ad_info;
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001377 count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.partner_key);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001378 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001379
1380 return count;
1381}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001382static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001383
1384
1385/*
1386 * Show current 802.3ad partner mac.
1387 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001388static ssize_t bonding_show_ad_partner_mac(struct device *d,
1389 struct device_attribute *attr,
1390 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001391{
1392 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001393 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001394
1395 if (bond->params.mode == BOND_MODE_8023AD) {
1396 struct ad_info ad_info;
1397 if (!bond_3ad_get_active_agg_info(bond, &ad_info)) {
Johannes Berge1749612008-10-27 15:59:26 -07001398 count = sprintf(buf, "%pM\n", ad_info.partner_system);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001399 }
1400 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001401
1402 return count;
1403}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001404static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001405
1406
1407
1408static struct attribute *per_bond_attrs[] = {
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001409 &dev_attr_slaves.attr,
1410 &dev_attr_mode.attr,
Jay Vosburghdd957c52007-10-09 19:57:24 -07001411 &dev_attr_fail_over_mac.attr,
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001412 &dev_attr_arp_validate.attr,
1413 &dev_attr_arp_interval.attr,
1414 &dev_attr_arp_ip_target.attr,
1415 &dev_attr_downdelay.attr,
1416 &dev_attr_updelay.attr,
1417 &dev_attr_lacp_rate.attr,
1418 &dev_attr_xmit_hash_policy.attr,
Moni Shoua7893b242008-05-17 21:10:12 -07001419 &dev_attr_num_grat_arp.attr,
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001420 &dev_attr_miimon.attr,
1421 &dev_attr_primary.attr,
1422 &dev_attr_use_carrier.attr,
1423 &dev_attr_active_slave.attr,
1424 &dev_attr_mii_status.attr,
1425 &dev_attr_ad_aggregator.attr,
1426 &dev_attr_ad_num_ports.attr,
1427 &dev_attr_ad_actor_key.attr,
1428 &dev_attr_ad_partner_key.attr,
1429 &dev_attr_ad_partner_mac.attr,
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001430 NULL,
1431};
1432
1433static struct attribute_group bonding_group = {
1434 .name = "bonding",
1435 .attrs = per_bond_attrs,
1436};
1437
1438/*
1439 * Initialize sysfs. This sets up the bonding_masters file in
1440 * /sys/class/net.
1441 */
1442int bond_create_sysfs(void)
1443{
Jay Vosburghb8a97872008-06-13 18:12:04 -07001444 int ret;
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001445
Jay Vosburghb8a97872008-06-13 18:12:04 -07001446 ret = netdev_class_create_file(&class_attr_bonding_masters);
Jay Vosburgh877cbd32007-01-19 18:15:47 -08001447 /*
1448 * Permit multiple loads of the module by ignoring failures to
1449 * create the bonding_masters sysfs file. Bonding devices
1450 * created by second or subsequent loads of the module will
1451 * not be listed in, or controllable by, bonding_masters, but
1452 * will have the usual "bonding" sysfs directory.
1453 *
1454 * This is done to preserve backwards compatibility for
1455 * initscripts/sysconfig, which load bonding multiple times to
1456 * configure multiple bonding devices.
1457 */
1458 if (ret == -EEXIST) {
Stephen Hemminger38d2f382008-05-14 22:35:04 -07001459 /* Is someone being kinky and naming a device bonding_master? */
1460 if (__dev_get_by_name(&init_net,
1461 class_attr_bonding_masters.attr.name))
1462 printk(KERN_ERR
1463 "network device named %s already exists in sysfs",
1464 class_attr_bonding_masters.attr.name);
Jay Vosburgh877cbd32007-01-19 18:15:47 -08001465 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001466
1467 return ret;
1468
1469}
1470
1471/*
1472 * Remove /sys/class/net/bonding_masters.
1473 */
1474void bond_destroy_sysfs(void)
1475{
Jay Vosburghb8a97872008-06-13 18:12:04 -07001476 netdev_class_remove_file(&class_attr_bonding_masters);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001477}
1478
1479/*
1480 * Initialize sysfs for each bond. This sets up and registers
1481 * the 'bondctl' directory for each individual bond under /sys/class/net.
1482 */
1483int bond_create_sysfs_entry(struct bonding *bond)
1484{
1485 struct net_device *dev = bond->dev;
1486 int err;
1487
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001488 err = sysfs_create_group(&(dev->dev.kobj), &bonding_group);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001489 if (err) {
1490 printk(KERN_EMERG "eek! didn't create group!\n");
1491 }
1492
1493 if (expected_refcount < 1)
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001494 expected_refcount = atomic_read(&bond->dev->dev.kobj.kref.refcount);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001495
1496 return err;
1497}
1498/*
1499 * Remove sysfs entries for each bond.
1500 */
1501void bond_destroy_sysfs_entry(struct bonding *bond)
1502{
1503 struct net_device *dev = bond->dev;
1504
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001505 sysfs_remove_group(&(dev->dev.kobj), &bonding_group);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001506}
1507