blob: d1a110b08b51e580175324a96f468a8af8293267 [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
Mitch Williamsb76cdba2005-11-09 10:36:41 -080039#include "bonding.h"
Holger Eitzenberger5a03cdb2008-12-09 23:09:22 -080040
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -070041#define to_dev(obj) container_of(obj,struct device,kobj)
Wang Chen454d7c92008-11-12 23:37:49 -080042#define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd))))
Mitch Williamsb76cdba2005-11-09 10:36:41 -080043
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[];
Jay Vosburghfd989c82008-11-04 17:51:16 -080051extern struct bond_parm_tbl ad_select_tbl[];
Mitch Williamsb76cdba2005-11-09 10:36:41 -080052extern struct bond_parm_tbl xmit_hashtype_tbl[];
Jay Vosburghf5b2b962006-09-22 21:54:53 -070053extern struct bond_parm_tbl arp_validate_tbl[];
Jay Vosburgh3915c1e82008-05-17 21:10:14 -070054extern struct bond_parm_tbl fail_over_mac_tbl[];
Mitch Williamsb76cdba2005-11-09 10:36:41 -080055
56static int expected_refcount = -1;
Mitch Williamsb76cdba2005-11-09 10:36:41 -080057/*--------------------------- Data Structures -----------------------------*/
58
Robert P. J. Day3a4fa0a2007-10-19 23:10:43 +020059/* Bonding sysfs lock. Why can't we just use the subsystem lock?
Mitch Williamsb76cdba2005-11-09 10:36:41 -080060 * Because kobject_register tries to acquire the subsystem lock. If
61 * we already hold the lock (which we would if the user was creating
62 * a new bond through the sysfs interface), we deadlock.
63 * This lock is only needed when deleting a bond - we need to make sure
64 * that we don't collide with an ongoing ioctl.
65 */
66
67struct rw_semaphore bonding_rwsem;
68
69
70
71
72/*------------------------------ Functions --------------------------------*/
73
74/*
75 * "show" function for the bond_masters attribute.
76 * The class parameter is ignored.
77 */
Wagner Ferencb8843662007-12-06 23:40:30 -080078static ssize_t bonding_show_bonds(struct class *cls, char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -080079{
80 int res = 0;
81 struct bonding *bond;
82
83 down_read(&(bonding_rwsem));
84
85 list_for_each_entry(bond, &bond_dev_list, bond_list) {
86 if (res > (PAGE_SIZE - IFNAMSIZ)) {
87 /* not enough space for another interface name */
88 if ((PAGE_SIZE - res) > 10)
89 res = PAGE_SIZE - 10;
Wagner Ferencb8843662007-12-06 23:40:30 -080090 res += sprintf(buf + res, "++more++ ");
Mitch Williamsb76cdba2005-11-09 10:36:41 -080091 break;
92 }
Wagner Ferencb8843662007-12-06 23:40:30 -080093 res += sprintf(buf + res, "%s ", bond->dev->name);
Mitch Williamsb76cdba2005-11-09 10:36:41 -080094 }
Wagner Ferenc1dcdcd62007-12-06 23:40:31 -080095 if (res)
96 buf[res-1] = '\n'; /* eat the leftover space */
Mitch Williamsb76cdba2005-11-09 10:36:41 -080097 up_read(&(bonding_rwsem));
98 return res;
99}
100
101/*
102 * "store" function for the bond_masters attribute. This is what
103 * creates and deletes entire bonds.
104 *
105 * The class parameter is ignored.
106 *
107 */
108
109static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t count)
110{
111 char command[IFNAMSIZ + 1] = {0, };
112 char *ifname;
Jay Vosburgh027ea042008-01-17 16:25:02 -0800113 int rv, res = count;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800114 struct bonding *bond;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800115
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800116 sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
117 ifname = command + 1;
118 if ((strlen(command) <= 1) ||
119 !dev_valid_name(ifname))
120 goto err_no_cmd;
121
122 if (command[0] == '+') {
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800123 printk(KERN_INFO DRV_NAME
124 ": %s is being created...\n", ifname);
Pavel Emelyanov0dd646f2008-05-17 21:10:09 -0700125 rv = bond_create(ifname, &bonding_defaults);
Jay Vosburgh027ea042008-01-17 16:25:02 -0800126 if (rv) {
127 printk(KERN_INFO DRV_NAME ": Bond creation failed.\n");
128 res = rv;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800129 }
130 goto out;
131 }
132
133 if (command[0] == '-') {
Jay Vosburgh027ea042008-01-17 16:25:02 -0800134 rtnl_lock();
135 down_write(&bonding_rwsem);
136
Pavel Emelyanov0883bec2008-05-17 21:10:10 -0700137 list_for_each_entry(bond, &bond_dev_list, bond_list)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800138 if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) {
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800139 /* check the ref count on the bond's kobject.
140 * If it's > expected, then there's a file open,
141 * and we have to fail.
142 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700143 if (atomic_read(&bond->dev->dev.kobj.kref.refcount)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800144 > expected_refcount){
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800145 printk(KERN_INFO DRV_NAME
146 ": Unable remove bond %s due to open references.\n",
147 ifname);
148 res = -EPERM;
Jay Vosburghc4ebc662008-05-02 17:49:38 -0700149 goto out_unlock;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800150 }
151 printk(KERN_INFO DRV_NAME
152 ": %s is being deleted...\n",
153 bond->dev->name);
Moni Shouad90a1622007-10-09 19:43:43 -0700154 bond_destroy(bond);
Jay Vosburghc4ebc662008-05-02 17:49:38 -0700155 goto out_unlock;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800156 }
157
158 printk(KERN_ERR DRV_NAME
159 ": unable to delete non-existent bond %s\n", ifname);
160 res = -ENODEV;
Jay Vosburghc4ebc662008-05-02 17:49:38 -0700161 goto out_unlock;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800162 }
163
164err_no_cmd:
165 printk(KERN_ERR DRV_NAME
166 ": no command found in bonding_masters. Use +ifname or -ifname.\n");
Jay Vosburghc4ebc662008-05-02 17:49:38 -0700167 return -EPERM;
168
169out_unlock:
170 up_write(&bonding_rwsem);
171 rtnl_unlock();
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800172
173 /* Always return either count or an error. If you return 0, you'll
174 * get called forever, which is bad.
175 */
176out:
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800177 return res;
178}
179/* class attribute for bond_masters file. This ends up in /sys/class/net */
180static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO,
181 bonding_show_bonds, bonding_store_bonds);
182
183int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave)
184{
185 char linkname[IFNAMSIZ+7];
186 int ret = 0;
187
188 /* first, create a link from the slave back to the master */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700189 ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj),
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800190 "master");
191 if (ret)
192 return ret;
193 /* next, create a link from the master to the slave */
194 sprintf(linkname,"slave_%s",slave->name);
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700195 ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj),
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800196 linkname);
197 return ret;
198
199}
200
201void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave)
202{
203 char linkname[IFNAMSIZ+7];
204
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700205 sysfs_remove_link(&(slave->dev.kobj), "master");
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800206 sprintf(linkname,"slave_%s",slave->name);
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700207 sysfs_remove_link(&(master->dev.kobj), linkname);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800208}
209
210
211/*
212 * Show the slaves in the current bond.
213 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700214static ssize_t bonding_show_slaves(struct device *d,
215 struct device_attribute *attr, char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800216{
217 struct slave *slave;
218 int i, res = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700219 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800220
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700221 read_lock(&bond->lock);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800222 bond_for_each_slave(bond, slave, i) {
223 if (res > (PAGE_SIZE - IFNAMSIZ)) {
224 /* not enough space for another interface name */
225 if ((PAGE_SIZE - res) > 10)
226 res = PAGE_SIZE - 10;
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800227 res += sprintf(buf + res, "++more++ ");
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800228 break;
229 }
230 res += sprintf(buf + res, "%s ", slave->dev->name);
231 }
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700232 read_unlock(&bond->lock);
Wagner Ferenc1dcdcd62007-12-06 23:40:31 -0800233 if (res)
234 buf[res-1] = '\n'; /* eat the leftover space */
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800235 return res;
236}
237
238/*
239 * Set the slaves in the current bond. The bond interface must be
240 * up for this to succeed.
241 * This function is largely the same flow as bonding_update_bonds().
242 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700243static ssize_t bonding_store_slaves(struct device *d,
244 struct device_attribute *attr,
245 const char *buffer, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800246{
247 char command[IFNAMSIZ + 1] = { 0, };
248 char *ifname;
249 int i, res, found, ret = count;
Moni Shoua3158bf72007-10-09 19:43:41 -0700250 u32 original_mtu;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800251 struct slave *slave;
Luiz Fernando Capitulino3418db72006-02-01 00:54:34 -0800252 struct net_device *dev = NULL;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700253 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800254
255 /* Quick sanity check -- is the bond interface up? */
256 if (!(bond->dev->flags & IFF_UP)) {
Moni Shoua6b1bf092007-10-09 19:43:40 -0700257 printk(KERN_WARNING DRV_NAME
258 ": %s: doing slave updates when interface is down.\n",
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800259 bond->dev->name);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800260 }
261
262 /* Note: We can't hold bond->lock here, as bond_create grabs it. */
263
Jay Vosburgh027ea042008-01-17 16:25:02 -0800264 rtnl_lock();
265 down_write(&(bonding_rwsem));
266
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800267 sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
268 ifname = command + 1;
269 if ((strlen(command) <= 1) ||
270 !dev_valid_name(ifname))
271 goto err_no_cmd;
272
273 if (command[0] == '+') {
274
275 /* Got a slave name in ifname. Is it already in the list? */
276 found = 0;
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700277 read_lock(&bond->lock);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800278 bond_for_each_slave(bond, slave, i)
279 if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
280 printk(KERN_ERR DRV_NAME
281 ": %s: Interface %s is already enslaved!\n",
282 bond->dev->name, ifname);
283 ret = -EPERM;
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700284 read_unlock(&bond->lock);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800285 goto out;
286 }
287
Jay Vosburgh6603a6f2007-10-17 17:37:50 -0700288 read_unlock(&bond->lock);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800289 printk(KERN_INFO DRV_NAME ": %s: Adding slave %s.\n",
290 bond->dev->name, ifname);
Eric W. Biederman881d9662007-09-17 11:56:21 -0700291 dev = dev_get_by_name(&init_net, ifname);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800292 if (!dev) {
293 printk(KERN_INFO DRV_NAME
294 ": %s: Interface %s does not exist!\n",
295 bond->dev->name, ifname);
296 ret = -EPERM;
297 goto out;
298 }
299 else
300 dev_put(dev);
301
302 if (dev->flags & IFF_UP) {
303 printk(KERN_ERR DRV_NAME
304 ": %s: Error: Unable to enslave %s "
305 "because it is already up.\n",
306 bond->dev->name, dev->name);
307 ret = -EPERM;
308 goto out;
309 }
310 /* If this is the first slave, then we need to set
311 the master's hardware address to be the same as the
312 slave's. */
313 if (!(*((u32 *) & (bond->dev->dev_addr[0])))) {
314 memcpy(bond->dev->dev_addr, dev->dev_addr,
315 dev->addr_len);
316 }
317
318 /* Set the slave's MTU to match the bond */
Moni Shoua3158bf72007-10-09 19:43:41 -0700319 original_mtu = dev->mtu;
Stephen Hemmingereb7cc592008-11-19 21:56:05 -0800320 res = dev_set_mtu(dev, bond->dev->mtu);
321 if (res) {
322 ret = res;
323 goto out;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800324 }
Stephen Hemmingereb7cc592008-11-19 21:56:05 -0800325
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800326 res = bond_enslave(bond->dev, dev);
Moni Shoua3158bf72007-10-09 19:43:41 -0700327 bond_for_each_slave(bond, slave, i)
328 if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0)
329 slave->original_mtu = original_mtu;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800330 if (res) {
331 ret = res;
332 }
333 goto out;
334 }
335
336 if (command[0] == '-') {
337 dev = NULL;
David S. Miller6952d8922008-03-28 16:15:38 -0700338 original_mtu = 0;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800339 bond_for_each_slave(bond, slave, i)
340 if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
341 dev = slave->dev;
Moni Shoua3158bf72007-10-09 19:43:41 -0700342 original_mtu = slave->original_mtu;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800343 break;
344 }
345 if (dev) {
346 printk(KERN_INFO DRV_NAME ": %s: Removing slave %s\n",
347 bond->dev->name, dev->name);
Moni Shouad90a1622007-10-09 19:43:43 -0700348 res = bond_release(bond->dev, dev);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800349 if (res) {
350 ret = res;
351 goto out;
352 }
353 /* set the slave MTU to the default */
Stephen Hemmingereb7cc592008-11-19 21:56:05 -0800354 dev_set_mtu(dev, original_mtu);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800355 }
356 else {
357 printk(KERN_ERR DRV_NAME ": unable to remove non-existent slave %s for bond %s.\n",
358 ifname, bond->dev->name);
359 ret = -ENODEV;
360 }
361 goto out;
362 }
363
364err_no_cmd:
365 printk(KERN_ERR DRV_NAME ": no command found in slaves file for bond %s. Use +ifname or -ifname.\n", bond->dev->name);
366 ret = -EPERM;
367
368out:
Jay Vosburgh027ea042008-01-17 16:25:02 -0800369 up_write(&(bonding_rwsem));
370 rtnl_unlock();
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800371 return ret;
372}
373
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700374static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, bonding_store_slaves);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800375
376/*
377 * Show and set the bonding mode. The bond interface must be down to
378 * change the mode.
379 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700380static ssize_t bonding_show_mode(struct device *d,
381 struct device_attribute *attr, char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800382{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700383 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800384
385 return sprintf(buf, "%s %d\n",
386 bond_mode_tbl[bond->params.mode].modename,
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800387 bond->params.mode);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800388}
389
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700390static ssize_t bonding_store_mode(struct device *d,
391 struct device_attribute *attr,
392 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800393{
394 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700395 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800396
397 if (bond->dev->flags & IFF_UP) {
398 printk(KERN_ERR DRV_NAME
399 ": unable to update mode of %s because interface is up.\n",
400 bond->dev->name);
401 ret = -EPERM;
402 goto out;
403 }
404
Jay Vosburghece95f72008-01-17 16:25:01 -0800405 new_value = bond_parse_parm(buf, bond_mode_tbl);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800406 if (new_value < 0) {
407 printk(KERN_ERR DRV_NAME
408 ": %s: Ignoring invalid mode value %.*s.\n",
409 bond->dev->name,
410 (int)strlen(buf) - 1, buf);
411 ret = -EINVAL;
412 goto out;
413 } else {
Jay Vosburgh8f903c72006-02-21 16:36:44 -0800414 if (bond->params.mode == BOND_MODE_8023AD)
415 bond_unset_master_3ad_flags(bond);
416
417 if (bond->params.mode == BOND_MODE_ALB)
418 bond_unset_master_alb_flags(bond);
419
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800420 bond->params.mode = new_value;
421 bond_set_mode_ops(bond, bond->params.mode);
422 printk(KERN_INFO DRV_NAME ": %s: setting mode to %s (%d).\n",
423 bond->dev->name, bond_mode_tbl[new_value].modename, new_value);
424 }
425out:
426 return ret;
427}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700428static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, bonding_show_mode, bonding_store_mode);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800429
430/*
431 * Show and set the bonding transmit hash method. The bond interface must be down to
432 * change the xmit hash policy.
433 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700434static ssize_t bonding_show_xmit_hash(struct device *d,
435 struct device_attribute *attr,
436 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800437{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700438 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800439
Wagner Ferenc8e4b9322007-12-06 23:40:32 -0800440 return sprintf(buf, "%s %d\n",
441 xmit_hashtype_tbl[bond->params.xmit_policy].modename,
442 bond->params.xmit_policy);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800443}
444
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700445static ssize_t bonding_store_xmit_hash(struct device *d,
446 struct device_attribute *attr,
447 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800448{
449 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700450 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800451
452 if (bond->dev->flags & IFF_UP) {
453 printk(KERN_ERR DRV_NAME
454 "%s: Interface is up. Unable to update xmit policy.\n",
455 bond->dev->name);
456 ret = -EPERM;
457 goto out;
458 }
459
Jay Vosburghece95f72008-01-17 16:25:01 -0800460 new_value = bond_parse_parm(buf, xmit_hashtype_tbl);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800461 if (new_value < 0) {
462 printk(KERN_ERR DRV_NAME
463 ": %s: Ignoring invalid xmit hash policy value %.*s.\n",
464 bond->dev->name,
465 (int)strlen(buf) - 1, buf);
466 ret = -EINVAL;
467 goto out;
468 } else {
469 bond->params.xmit_policy = new_value;
470 bond_set_mode_ops(bond, bond->params.mode);
471 printk(KERN_INFO DRV_NAME ": %s: setting xmit hash policy to %s (%d).\n",
472 bond->dev->name, xmit_hashtype_tbl[new_value].modename, new_value);
473 }
474out:
475 return ret;
476}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700477static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, bonding_show_xmit_hash, bonding_store_xmit_hash);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800478
479/*
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700480 * Show and set arp_validate.
481 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700482static ssize_t bonding_show_arp_validate(struct device *d,
483 struct device_attribute *attr,
484 char *buf)
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700485{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700486 struct bonding *bond = to_bond(d);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700487
488 return sprintf(buf, "%s %d\n",
489 arp_validate_tbl[bond->params.arp_validate].modename,
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800490 bond->params.arp_validate);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700491}
492
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700493static ssize_t bonding_store_arp_validate(struct device *d,
494 struct device_attribute *attr,
495 const char *buf, size_t count)
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700496{
497 int new_value;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700498 struct bonding *bond = to_bond(d);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700499
Jay Vosburghece95f72008-01-17 16:25:01 -0800500 new_value = bond_parse_parm(buf, arp_validate_tbl);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700501 if (new_value < 0) {
502 printk(KERN_ERR DRV_NAME
503 ": %s: Ignoring invalid arp_validate value %s\n",
504 bond->dev->name, buf);
505 return -EINVAL;
506 }
507 if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) {
508 printk(KERN_ERR DRV_NAME
509 ": %s: arp_validate only supported in active-backup mode.\n",
510 bond->dev->name);
511 return -EINVAL;
512 }
513 printk(KERN_INFO DRV_NAME ": %s: setting arp_validate to %s (%d).\n",
514 bond->dev->name, arp_validate_tbl[new_value].modename,
515 new_value);
516
517 if (!bond->params.arp_validate && new_value) {
518 bond_register_arp(bond);
519 } else if (bond->params.arp_validate && !new_value) {
520 bond_unregister_arp(bond);
521 }
522
523 bond->params.arp_validate = new_value;
524
525 return count;
526}
527
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700528static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, bonding_store_arp_validate);
Jay Vosburghf5b2b962006-09-22 21:54:53 -0700529
530/*
Jay Vosburghdd957c52007-10-09 19:57:24 -0700531 * Show and store fail_over_mac. User only allowed to change the
532 * value when there are no slaves.
533 */
534static ssize_t bonding_show_fail_over_mac(struct device *d, struct device_attribute *attr, char *buf)
535{
536 struct bonding *bond = to_bond(d);
537
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700538 return sprintf(buf, "%s %d\n",
539 fail_over_mac_tbl[bond->params.fail_over_mac].modename,
540 bond->params.fail_over_mac);
Jay Vosburghdd957c52007-10-09 19:57:24 -0700541}
542
543static ssize_t bonding_store_fail_over_mac(struct device *d, struct device_attribute *attr, const char *buf, size_t count)
544{
545 int new_value;
Jay Vosburghdd957c52007-10-09 19:57:24 -0700546 struct bonding *bond = to_bond(d);
547
548 if (bond->slave_cnt != 0) {
549 printk(KERN_ERR DRV_NAME
550 ": %s: Can't alter fail_over_mac with slaves in bond.\n",
551 bond->dev->name);
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700552 return -EPERM;
Jay Vosburghdd957c52007-10-09 19:57:24 -0700553 }
554
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700555 new_value = bond_parse_parm(buf, fail_over_mac_tbl);
556 if (new_value < 0) {
Jay Vosburghdd957c52007-10-09 19:57:24 -0700557 printk(KERN_ERR DRV_NAME
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700558 ": %s: Ignoring invalid fail_over_mac value %s.\n",
559 bond->dev->name, buf);
560 return -EINVAL;
Jay Vosburghdd957c52007-10-09 19:57:24 -0700561 }
562
Jay Vosburgh3915c1e82008-05-17 21:10:14 -0700563 bond->params.fail_over_mac = new_value;
564 printk(KERN_INFO DRV_NAME ": %s: Setting fail_over_mac to %s (%d).\n",
565 bond->dev->name, fail_over_mac_tbl[new_value].modename,
566 new_value);
567
568 return count;
Jay Vosburghdd957c52007-10-09 19:57:24 -0700569}
570
571static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, bonding_show_fail_over_mac, bonding_store_fail_over_mac);
572
573/*
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800574 * Show and set the arp timer interval. There are two tricky bits
575 * here. First, if ARP monitoring is activated, then we must disable
576 * MII monitoring. Second, if the ARP timer isn't running, we must
577 * start it.
578 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700579static ssize_t bonding_show_arp_interval(struct device *d,
580 struct device_attribute *attr,
581 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800582{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700583 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800584
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800585 return sprintf(buf, "%d\n", bond->params.arp_interval);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800586}
587
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700588static ssize_t bonding_store_arp_interval(struct device *d,
589 struct device_attribute *attr,
590 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800591{
592 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700593 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800594
595 if (sscanf(buf, "%d", &new_value) != 1) {
596 printk(KERN_ERR DRV_NAME
597 ": %s: no arp_interval value specified.\n",
598 bond->dev->name);
599 ret = -EINVAL;
600 goto out;
601 }
602 if (new_value < 0) {
603 printk(KERN_ERR DRV_NAME
604 ": %s: Invalid arp_interval value %d not in range 1-%d; rejected.\n",
605 bond->dev->name, new_value, INT_MAX);
606 ret = -EINVAL;
607 goto out;
608 }
609
610 printk(KERN_INFO DRV_NAME
611 ": %s: Setting ARP monitoring interval to %d.\n",
612 bond->dev->name, new_value);
613 bond->params.arp_interval = new_value;
Jay Vosburgh6cf3f412008-11-03 18:16:50 -0800614 if (bond->params.arp_interval)
615 bond->dev->priv_flags |= IFF_MASTER_ARPMON;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800616 if (bond->params.miimon) {
617 printk(KERN_INFO DRV_NAME
618 ": %s: ARP monitoring cannot be used with MII monitoring. "
619 "%s Disabling MII monitoring.\n",
620 bond->dev->name, bond->dev->name);
621 bond->params.miimon = 0;
Jay Vosburgh1b76b312007-10-17 17:37:45 -0700622 if (delayed_work_pending(&bond->mii_work)) {
623 cancel_delayed_work(&bond->mii_work);
624 flush_workqueue(bond->wq);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800625 }
626 }
627 if (!bond->params.arp_targets[0]) {
628 printk(KERN_INFO DRV_NAME
629 ": %s: ARP monitoring has been set up, "
630 "but no ARP targets have been specified.\n",
631 bond->dev->name);
632 }
633 if (bond->dev->flags & IFF_UP) {
634 /* If the interface is up, we may need to fire off
635 * the ARP timer. If the interface is down, the
636 * timer will get fired off when the open function
637 * is called.
638 */
Jay Vosburgh1b76b312007-10-17 17:37:45 -0700639 if (!delayed_work_pending(&bond->arp_work)) {
640 if (bond->params.mode == BOND_MODE_ACTIVEBACKUP)
641 INIT_DELAYED_WORK(&bond->arp_work,
642 bond_activebackup_arp_mon);
643 else
644 INIT_DELAYED_WORK(&bond->arp_work,
645 bond_loadbalance_arp_mon);
646
647 queue_delayed_work(bond->wq, &bond->arp_work, 0);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800648 }
649 }
650
651out:
652 return ret;
653}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700654static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR , bonding_show_arp_interval, bonding_store_arp_interval);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800655
656/*
657 * Show and set the arp targets.
658 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700659static ssize_t bonding_show_arp_targets(struct device *d,
660 struct device_attribute *attr,
661 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800662{
663 int i, res = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700664 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800665
666 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
667 if (bond->params.arp_targets[i])
Harvey Harrison63779432008-10-31 00:56:00 -0700668 res += sprintf(buf + res, "%pI4 ",
669 &bond->params.arp_targets[i]);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800670 }
Wagner Ferenc1dcdcd62007-12-06 23:40:31 -0800671 if (res)
672 buf[res-1] = '\n'; /* eat the leftover space */
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800673 return res;
674}
675
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700676static ssize_t bonding_store_arp_targets(struct device *d,
677 struct device_attribute *attr,
678 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800679{
Al Virod3bb52b2007-08-22 20:06:58 -0400680 __be32 newtarget;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800681 int i = 0, done = 0, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700682 struct bonding *bond = to_bond(d);
Al Virod3bb52b2007-08-22 20:06:58 -0400683 __be32 *targets;
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800684
685 targets = bond->params.arp_targets;
686 newtarget = in_aton(buf + 1);
687 /* look for adds */
688 if (buf[0] == '+') {
Al Virod3bb52b2007-08-22 20:06:58 -0400689 if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800690 printk(KERN_ERR DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700691 ": %s: invalid ARP target %pI4 specified for addition\n",
692 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800693 ret = -EINVAL;
694 goto out;
695 }
696 /* look for an empty slot to put the target in, and check for dupes */
697 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
698 if (targets[i] == newtarget) { /* duplicate */
699 printk(KERN_ERR DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700700 ": %s: ARP target %pI4 is already present\n",
701 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800702 if (done)
703 targets[i] = 0;
704 ret = -EINVAL;
705 goto out;
706 }
707 if (targets[i] == 0 && !done) {
708 printk(KERN_INFO DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700709 ": %s: adding ARP target %pI4.\n",
710 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800711 done = 1;
712 targets[i] = newtarget;
713 }
714 }
715 if (!done) {
716 printk(KERN_ERR DRV_NAME
717 ": %s: ARP target table is full!\n",
718 bond->dev->name);
719 ret = -EINVAL;
720 goto out;
721 }
722
723 }
724 else if (buf[0] == '-') {
Al Virod3bb52b2007-08-22 20:06:58 -0400725 if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800726 printk(KERN_ERR DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700727 ": %s: invalid ARP target %pI4 specified for removal\n",
728 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800729 ret = -EINVAL;
730 goto out;
731 }
732
733 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
734 if (targets[i] == newtarget) {
735 printk(KERN_INFO DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700736 ": %s: removing ARP target %pI4.\n",
737 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800738 targets[i] = 0;
739 done = 1;
740 }
741 }
742 if (!done) {
743 printk(KERN_INFO DRV_NAME
Harvey Harrison63779432008-10-31 00:56:00 -0700744 ": %s: unable to remove nonexistent ARP target %pI4.\n",
745 bond->dev->name, &newtarget);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800746 ret = -EINVAL;
747 goto out;
748 }
749 }
750 else {
751 printk(KERN_ERR DRV_NAME ": no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n",
752 bond->dev->name);
753 ret = -EPERM;
754 goto out;
755 }
756
757out:
758 return ret;
759}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700760static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800761
762/*
763 * Show and set the up and down delays. These must be multiples of the
764 * MII monitoring value, and are stored internally as the multiplier.
765 * Thus, we must translate to MS for the real world.
766 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700767static ssize_t bonding_show_downdelay(struct device *d,
768 struct device_attribute *attr,
769 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800770{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700771 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800772
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800773 return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800774}
775
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700776static ssize_t bonding_store_downdelay(struct device *d,
777 struct device_attribute *attr,
778 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800779{
780 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700781 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800782
783 if (!(bond->params.miimon)) {
784 printk(KERN_ERR DRV_NAME
785 ": %s: Unable to set down delay as MII monitoring is disabled\n",
786 bond->dev->name);
787 ret = -EPERM;
788 goto out;
789 }
790
791 if (sscanf(buf, "%d", &new_value) != 1) {
792 printk(KERN_ERR DRV_NAME
793 ": %s: no down delay value specified.\n",
794 bond->dev->name);
795 ret = -EINVAL;
796 goto out;
797 }
798 if (new_value < 0) {
799 printk(KERN_ERR DRV_NAME
800 ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n",
801 bond->dev->name, new_value, 1, INT_MAX);
802 ret = -EINVAL;
803 goto out;
804 } else {
805 if ((new_value % bond->params.miimon) != 0) {
806 printk(KERN_WARNING DRV_NAME
807 ": %s: Warning: down delay (%d) is not a multiple "
808 "of miimon (%d), delay rounded to %d ms\n",
809 bond->dev->name, new_value, bond->params.miimon,
810 (new_value / bond->params.miimon) *
811 bond->params.miimon);
812 }
813 bond->params.downdelay = new_value / bond->params.miimon;
814 printk(KERN_INFO DRV_NAME ": %s: Setting down delay to %d.\n",
815 bond->dev->name, bond->params.downdelay * bond->params.miimon);
816
817 }
818
819out:
820 return ret;
821}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700822static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR , bonding_show_downdelay, bonding_store_downdelay);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800823
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700824static ssize_t bonding_show_updelay(struct device *d,
825 struct device_attribute *attr,
826 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800827{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700828 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800829
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800830 return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800831
832}
833
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700834static ssize_t bonding_store_updelay(struct device *d,
835 struct device_attribute *attr,
836 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800837{
838 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700839 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800840
841 if (!(bond->params.miimon)) {
842 printk(KERN_ERR DRV_NAME
843 ": %s: Unable to set up delay as MII monitoring is disabled\n",
844 bond->dev->name);
845 ret = -EPERM;
846 goto out;
847 }
848
849 if (sscanf(buf, "%d", &new_value) != 1) {
850 printk(KERN_ERR DRV_NAME
851 ": %s: no up delay value specified.\n",
852 bond->dev->name);
853 ret = -EINVAL;
854 goto out;
855 }
856 if (new_value < 0) {
857 printk(KERN_ERR DRV_NAME
858 ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n",
859 bond->dev->name, new_value, 1, INT_MAX);
860 ret = -EINVAL;
861 goto out;
862 } else {
863 if ((new_value % bond->params.miimon) != 0) {
864 printk(KERN_WARNING DRV_NAME
865 ": %s: Warning: up delay (%d) is not a multiple "
866 "of miimon (%d), updelay rounded to %d ms\n",
867 bond->dev->name, new_value, bond->params.miimon,
868 (new_value / bond->params.miimon) *
869 bond->params.miimon);
870 }
871 bond->params.updelay = new_value / bond->params.miimon;
872 printk(KERN_INFO DRV_NAME ": %s: Setting up delay to %d.\n",
873 bond->dev->name, bond->params.updelay * bond->params.miimon);
874
875 }
876
877out:
878 return ret;
879}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700880static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR , bonding_show_updelay, bonding_store_updelay);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800881
882/*
883 * Show and set the LACP interval. Interface must be down, and the mode
884 * must be set to 802.3ad mode.
885 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700886static ssize_t bonding_show_lacp(struct device *d,
887 struct device_attribute *attr,
888 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800889{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700890 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800891
892 return sprintf(buf, "%s %d\n",
893 bond_lacp_tbl[bond->params.lacp_fast].modename,
Wagner Ferenc7bd46502007-12-06 23:40:28 -0800894 bond->params.lacp_fast);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800895}
896
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700897static ssize_t bonding_store_lacp(struct device *d,
898 struct device_attribute *attr,
899 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800900{
901 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700902 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800903
904 if (bond->dev->flags & IFF_UP) {
905 printk(KERN_ERR DRV_NAME
906 ": %s: Unable to update LACP rate because interface is up.\n",
907 bond->dev->name);
908 ret = -EPERM;
909 goto out;
910 }
911
912 if (bond->params.mode != BOND_MODE_8023AD) {
913 printk(KERN_ERR DRV_NAME
914 ": %s: Unable to update LACP rate because bond is not in 802.3ad mode.\n",
915 bond->dev->name);
916 ret = -EPERM;
917 goto out;
918 }
919
Jay Vosburghece95f72008-01-17 16:25:01 -0800920 new_value = bond_parse_parm(buf, bond_lacp_tbl);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800921
922 if ((new_value == 1) || (new_value == 0)) {
923 bond->params.lacp_fast = new_value;
924 printk(KERN_INFO DRV_NAME
925 ": %s: Setting LACP rate to %s (%d).\n",
926 bond->dev->name, bond_lacp_tbl[new_value].modename, new_value);
927 } else {
928 printk(KERN_ERR DRV_NAME
929 ": %s: Ignoring invalid LACP rate value %.*s.\n",
930 bond->dev->name, (int)strlen(buf) - 1, buf);
931 ret = -EINVAL;
932 }
933out:
934 return ret;
935}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -0700936static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, bonding_show_lacp, bonding_store_lacp);
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800937
Jay Vosburghfd989c82008-11-04 17:51:16 -0800938static ssize_t bonding_show_ad_select(struct device *d,
939 struct device_attribute *attr,
940 char *buf)
941{
942 struct bonding *bond = to_bond(d);
943
944 return sprintf(buf, "%s %d\n",
945 ad_select_tbl[bond->params.ad_select].modename,
946 bond->params.ad_select);
947}
948
949
950static ssize_t bonding_store_ad_select(struct device *d,
951 struct device_attribute *attr,
952 const char *buf, size_t count)
953{
954 int new_value, ret = count;
955 struct bonding *bond = to_bond(d);
956
957 if (bond->dev->flags & IFF_UP) {
958 printk(KERN_ERR DRV_NAME
959 ": %s: Unable to update ad_select because interface "
960 "is up.\n", bond->dev->name);
961 ret = -EPERM;
962 goto out;
963 }
964
965 new_value = bond_parse_parm(buf, ad_select_tbl);
966
967 if (new_value != -1) {
968 bond->params.ad_select = new_value;
969 printk(KERN_INFO DRV_NAME
970 ": %s: Setting ad_select to %s (%d).\n",
971 bond->dev->name, ad_select_tbl[new_value].modename,
972 new_value);
973 } else {
974 printk(KERN_ERR DRV_NAME
975 ": %s: Ignoring invalid ad_select value %.*s.\n",
976 bond->dev->name, (int)strlen(buf) - 1, buf);
977 ret = -EINVAL;
978 }
979out:
980 return ret;
981}
982
983static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, bonding_show_ad_select, bonding_store_ad_select);
984
Mitch Williamsb76cdba2005-11-09 10:36:41 -0800985/*
Moni Shoua7893b242008-05-17 21:10:12 -0700986 * Show and set the number of grat ARP to send after a failover event.
987 */
988static ssize_t bonding_show_n_grat_arp(struct device *d,
989 struct device_attribute *attr,
990 char *buf)
991{
992 struct bonding *bond = to_bond(d);
993
994 return sprintf(buf, "%d\n", bond->params.num_grat_arp);
995}
996
997static ssize_t bonding_store_n_grat_arp(struct device *d,
998 struct device_attribute *attr,
999 const char *buf, size_t count)
1000{
1001 int new_value, ret = count;
1002 struct bonding *bond = to_bond(d);
1003
1004 if (sscanf(buf, "%d", &new_value) != 1) {
1005 printk(KERN_ERR DRV_NAME
1006 ": %s: no num_grat_arp value specified.\n",
1007 bond->dev->name);
1008 ret = -EINVAL;
1009 goto out;
1010 }
1011 if (new_value < 0 || new_value > 255) {
1012 printk(KERN_ERR DRV_NAME
1013 ": %s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n",
1014 bond->dev->name, new_value);
1015 ret = -EINVAL;
1016 goto out;
1017 } else {
1018 bond->params.num_grat_arp = new_value;
1019 }
1020out:
1021 return ret;
1022}
1023static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, bonding_show_n_grat_arp, bonding_store_n_grat_arp);
Brian Haley305d5522008-11-04 17:51:14 -08001024
1025/*
1026 * Show and set the number of unsolicted NA's to send after a failover event.
1027 */
1028static ssize_t bonding_show_n_unsol_na(struct device *d,
1029 struct device_attribute *attr,
1030 char *buf)
1031{
1032 struct bonding *bond = to_bond(d);
1033
1034 return sprintf(buf, "%d\n", bond->params.num_unsol_na);
1035}
1036
1037static ssize_t bonding_store_n_unsol_na(struct device *d,
1038 struct device_attribute *attr,
1039 const char *buf, size_t count)
1040{
1041 int new_value, ret = count;
1042 struct bonding *bond = to_bond(d);
1043
1044 if (sscanf(buf, "%d", &new_value) != 1) {
1045 printk(KERN_ERR DRV_NAME
1046 ": %s: no num_unsol_na value specified.\n",
1047 bond->dev->name);
1048 ret = -EINVAL;
1049 goto out;
1050 }
1051 if (new_value < 0 || new_value > 255) {
1052 printk(KERN_ERR DRV_NAME
1053 ": %s: Invalid num_unsol_na value %d not in range 0-255; rejected.\n",
1054 bond->dev->name, new_value);
1055 ret = -EINVAL;
1056 goto out;
1057 } else {
1058 bond->params.num_unsol_na = new_value;
1059 }
1060out:
1061 return ret;
1062}
1063static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, bonding_show_n_unsol_na, bonding_store_n_unsol_na);
1064
Moni Shoua7893b242008-05-17 21:10:12 -07001065/*
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001066 * Show and set the MII monitor interval. There are two tricky bits
1067 * here. First, if MII monitoring is activated, then we must disable
1068 * ARP monitoring. Second, if the timer isn't running, we must
1069 * start it.
1070 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001071static ssize_t bonding_show_miimon(struct device *d,
1072 struct device_attribute *attr,
1073 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001074{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001075 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001076
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001077 return sprintf(buf, "%d\n", bond->params.miimon);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001078}
1079
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001080static ssize_t bonding_store_miimon(struct device *d,
1081 struct device_attribute *attr,
1082 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001083{
1084 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001085 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001086
1087 if (sscanf(buf, "%d", &new_value) != 1) {
1088 printk(KERN_ERR DRV_NAME
1089 ": %s: no miimon value specified.\n",
1090 bond->dev->name);
1091 ret = -EINVAL;
1092 goto out;
1093 }
1094 if (new_value < 0) {
1095 printk(KERN_ERR DRV_NAME
1096 ": %s: Invalid miimon value %d not in range %d-%d; rejected.\n",
1097 bond->dev->name, new_value, 1, INT_MAX);
1098 ret = -EINVAL;
1099 goto out;
1100 } else {
1101 printk(KERN_INFO DRV_NAME
1102 ": %s: Setting MII monitoring interval to %d.\n",
1103 bond->dev->name, new_value);
1104 bond->params.miimon = new_value;
1105 if(bond->params.updelay)
1106 printk(KERN_INFO DRV_NAME
1107 ": %s: Note: Updating updelay (to %d) "
1108 "since it is a multiple of the miimon value.\n",
1109 bond->dev->name,
1110 bond->params.updelay * bond->params.miimon);
1111 if(bond->params.downdelay)
1112 printk(KERN_INFO DRV_NAME
1113 ": %s: Note: Updating downdelay (to %d) "
1114 "since it is a multiple of the miimon value.\n",
1115 bond->dev->name,
1116 bond->params.downdelay * bond->params.miimon);
1117 if (bond->params.arp_interval) {
1118 printk(KERN_INFO DRV_NAME
1119 ": %s: MII monitoring cannot be used with "
1120 "ARP monitoring. Disabling ARP monitoring...\n",
1121 bond->dev->name);
1122 bond->params.arp_interval = 0;
Jay Vosburgh6cf3f412008-11-03 18:16:50 -08001123 bond->dev->priv_flags &= ~IFF_MASTER_ARPMON;
Jay Vosburghf5b2b962006-09-22 21:54:53 -07001124 if (bond->params.arp_validate) {
1125 bond_unregister_arp(bond);
1126 bond->params.arp_validate =
1127 BOND_ARP_VALIDATE_NONE;
1128 }
Jay Vosburgh1b76b312007-10-17 17:37:45 -07001129 if (delayed_work_pending(&bond->arp_work)) {
1130 cancel_delayed_work(&bond->arp_work);
1131 flush_workqueue(bond->wq);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001132 }
1133 }
1134
1135 if (bond->dev->flags & IFF_UP) {
1136 /* If the interface is up, we may need to fire off
1137 * the MII timer. If the interface is down, the
1138 * timer will get fired off when the open function
1139 * is called.
1140 */
Jay Vosburgh1b76b312007-10-17 17:37:45 -07001141 if (!delayed_work_pending(&bond->mii_work)) {
1142 INIT_DELAYED_WORK(&bond->mii_work,
1143 bond_mii_monitor);
1144 queue_delayed_work(bond->wq,
1145 &bond->mii_work, 0);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001146 }
1147 }
1148 }
1149out:
1150 return ret;
1151}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001152static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, bonding_show_miimon, bonding_store_miimon);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001153
1154/*
1155 * Show and set the primary slave. The store function is much
1156 * simpler than bonding_store_slaves function because it only needs to
1157 * handle one interface name.
1158 * The bond must be a mode that supports a primary for this be
1159 * set.
1160 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001161static ssize_t bonding_show_primary(struct device *d,
1162 struct device_attribute *attr,
1163 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001164{
1165 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001166 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001167
1168 if (bond->primary_slave)
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001169 count = sprintf(buf, "%s\n", bond->primary_slave->dev->name);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001170
1171 return count;
1172}
1173
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001174static ssize_t bonding_store_primary(struct device *d,
1175 struct device_attribute *attr,
1176 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001177{
1178 int i;
1179 struct slave *slave;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001180 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001181
Jay Vosburghe934dd72008-01-17 16:24:57 -08001182 rtnl_lock();
1183 read_lock(&bond->lock);
1184 write_lock_bh(&bond->curr_slave_lock);
1185
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001186 if (!USES_PRIMARY(bond->params.mode)) {
1187 printk(KERN_INFO DRV_NAME
1188 ": %s: Unable to set primary slave; %s is in mode %d\n",
1189 bond->dev->name, bond->dev->name, bond->params.mode);
1190 } else {
1191 bond_for_each_slave(bond, slave, i) {
1192 if (strnicmp
1193 (slave->dev->name, buf,
1194 strlen(slave->dev->name)) == 0) {
1195 printk(KERN_INFO DRV_NAME
1196 ": %s: Setting %s as primary slave.\n",
1197 bond->dev->name, slave->dev->name);
1198 bond->primary_slave = slave;
1199 bond_select_active_slave(bond);
1200 goto out;
1201 }
1202 }
1203
1204 /* if we got here, then we didn't match the name of any slave */
1205
1206 if (strlen(buf) == 0 || buf[0] == '\n') {
1207 printk(KERN_INFO DRV_NAME
1208 ": %s: Setting primary slave to None.\n",
1209 bond->dev->name);
Luiz Fernando Capitulino3418db72006-02-01 00:54:34 -08001210 bond->primary_slave = NULL;
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001211 bond_select_active_slave(bond);
1212 } else {
1213 printk(KERN_INFO DRV_NAME
1214 ": %s: Unable to set %.*s as primary slave as it is not a slave.\n",
1215 bond->dev->name, (int)strlen(buf) - 1, buf);
1216 }
1217 }
1218out:
Jay Vosburghe934dd72008-01-17 16:24:57 -08001219 write_unlock_bh(&bond->curr_slave_lock);
1220 read_unlock(&bond->lock);
Jay Vosburgh6603a6f2007-10-17 17:37:50 -07001221 rtnl_unlock();
1222
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001223 return count;
1224}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001225static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, bonding_show_primary, bonding_store_primary);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001226
1227/*
1228 * Show and set the use_carrier flag.
1229 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001230static ssize_t bonding_show_carrier(struct device *d,
1231 struct device_attribute *attr,
1232 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001233{
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001234 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001235
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001236 return sprintf(buf, "%d\n", bond->params.use_carrier);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001237}
1238
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001239static ssize_t bonding_store_carrier(struct device *d,
1240 struct device_attribute *attr,
1241 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001242{
1243 int new_value, ret = count;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001244 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001245
1246
1247 if (sscanf(buf, "%d", &new_value) != 1) {
1248 printk(KERN_ERR DRV_NAME
1249 ": %s: no use_carrier value specified.\n",
1250 bond->dev->name);
1251 ret = -EINVAL;
1252 goto out;
1253 }
1254 if ((new_value == 0) || (new_value == 1)) {
1255 bond->params.use_carrier = new_value;
1256 printk(KERN_INFO DRV_NAME ": %s: Setting use_carrier to %d.\n",
1257 bond->dev->name, new_value);
1258 } else {
1259 printk(KERN_INFO DRV_NAME
1260 ": %s: Ignoring invalid use_carrier value %d.\n",
1261 bond->dev->name, new_value);
1262 }
1263out:
1264 return count;
1265}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001266static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, bonding_show_carrier, bonding_store_carrier);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001267
1268
1269/*
1270 * Show and set currently active_slave.
1271 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001272static ssize_t bonding_show_active_slave(struct device *d,
1273 struct device_attribute *attr,
1274 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001275{
1276 struct slave *curr;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001277 struct bonding *bond = to_bond(d);
Wagner Ferenc16cd0162007-12-06 23:40:29 -08001278 int count = 0;
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001279
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001280 read_lock(&bond->curr_slave_lock);
1281 curr = bond->curr_active_slave;
1282 read_unlock(&bond->curr_slave_lock);
1283
1284 if (USES_PRIMARY(bond->params.mode) && curr)
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001285 count = sprintf(buf, "%s\n", curr->dev->name);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001286 return count;
1287}
1288
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001289static ssize_t bonding_store_active_slave(struct device *d,
1290 struct device_attribute *attr,
1291 const char *buf, size_t count)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001292{
1293 int i;
1294 struct slave *slave;
1295 struct slave *old_active = NULL;
1296 struct slave *new_active = NULL;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001297 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001298
Jay Vosburgh1466a212007-11-06 13:33:28 -08001299 rtnl_lock();
Jay Vosburghe934dd72008-01-17 16:24:57 -08001300 read_lock(&bond->lock);
1301 write_lock_bh(&bond->curr_slave_lock);
Jay Vosburgh1466a212007-11-06 13:33:28 -08001302
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001303 if (!USES_PRIMARY(bond->params.mode)) {
1304 printk(KERN_INFO DRV_NAME
1305 ": %s: Unable to change active slave; %s is in mode %d\n",
1306 bond->dev->name, bond->dev->name, bond->params.mode);
1307 } else {
1308 bond_for_each_slave(bond, slave, i) {
1309 if (strnicmp
1310 (slave->dev->name, buf,
1311 strlen(slave->dev->name)) == 0) {
1312 old_active = bond->curr_active_slave;
1313 new_active = slave;
Jay Vosburgha50d8de2006-09-22 21:53:25 -07001314 if (new_active == old_active) {
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001315 /* do nothing */
1316 printk(KERN_INFO DRV_NAME
1317 ": %s: %s is already the current active slave.\n",
1318 bond->dev->name, slave->dev->name);
1319 goto out;
1320 }
1321 else {
1322 if ((new_active) &&
1323 (old_active) &&
1324 (new_active->link == BOND_LINK_UP) &&
1325 IS_UP(new_active->dev)) {
1326 printk(KERN_INFO DRV_NAME
1327 ": %s: Setting %s as active slave.\n",
1328 bond->dev->name, slave->dev->name);
1329 bond_change_active_slave(bond, new_active);
1330 }
1331 else {
1332 printk(KERN_INFO DRV_NAME
1333 ": %s: Could not set %s as active slave; "
1334 "either %s is down or the link is down.\n",
1335 bond->dev->name, slave->dev->name,
1336 slave->dev->name);
1337 }
1338 goto out;
1339 }
1340 }
1341 }
1342
1343 /* if we got here, then we didn't match the name of any slave */
1344
1345 if (strlen(buf) == 0 || buf[0] == '\n') {
1346 printk(KERN_INFO DRV_NAME
1347 ": %s: Setting active slave to None.\n",
1348 bond->dev->name);
Luiz Fernando Capitulino3418db72006-02-01 00:54:34 -08001349 bond->primary_slave = NULL;
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001350 bond_select_active_slave(bond);
1351 } else {
1352 printk(KERN_INFO DRV_NAME
1353 ": %s: Unable to set %.*s as active slave as it is not a slave.\n",
1354 bond->dev->name, (int)strlen(buf) - 1, buf);
1355 }
1356 }
1357out:
Jay Vosburghe934dd72008-01-17 16:24:57 -08001358 write_unlock_bh(&bond->curr_slave_lock);
1359 read_unlock(&bond->lock);
Jay Vosburgh6603a6f2007-10-17 17:37:50 -07001360 rtnl_unlock();
1361
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001362 return count;
1363
1364}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001365static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, bonding_show_active_slave, bonding_store_active_slave);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001366
1367
1368/*
1369 * Show link status of the bond interface.
1370 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001371static ssize_t bonding_show_mii_status(struct device *d,
1372 struct device_attribute *attr,
1373 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001374{
1375 struct slave *curr;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001376 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001377
1378 read_lock(&bond->curr_slave_lock);
1379 curr = bond->curr_active_slave;
1380 read_unlock(&bond->curr_slave_lock);
1381
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001382 return sprintf(buf, "%s\n", (curr) ? "up" : "down");
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001383}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001384static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001385
1386
1387/*
1388 * Show current 802.3ad aggregator ID.
1389 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001390static ssize_t bonding_show_ad_aggregator(struct device *d,
1391 struct device_attribute *attr,
1392 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001393{
1394 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001395 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001396
1397 if (bond->params.mode == BOND_MODE_8023AD) {
1398 struct ad_info ad_info;
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001399 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 -08001400 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001401
1402 return count;
1403}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001404static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001405
1406
1407/*
1408 * Show number of active 802.3ad ports.
1409 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001410static ssize_t bonding_show_ad_num_ports(struct device *d,
1411 struct device_attribute *attr,
1412 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001413{
1414 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001415 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001416
1417 if (bond->params.mode == BOND_MODE_8023AD) {
1418 struct ad_info ad_info;
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001419 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 -08001420 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001421
1422 return count;
1423}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001424static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001425
1426
1427/*
1428 * Show current 802.3ad actor key.
1429 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001430static ssize_t bonding_show_ad_actor_key(struct device *d,
1431 struct device_attribute *attr,
1432 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001433{
1434 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001435 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001436
1437 if (bond->params.mode == BOND_MODE_8023AD) {
1438 struct ad_info ad_info;
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001439 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 -08001440 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001441
1442 return count;
1443}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001444static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001445
1446
1447/*
1448 * Show current 802.3ad partner key.
1449 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001450static ssize_t bonding_show_ad_partner_key(struct device *d,
1451 struct device_attribute *attr,
1452 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001453{
1454 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001455 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001456
1457 if (bond->params.mode == BOND_MODE_8023AD) {
1458 struct ad_info ad_info;
Wagner Ferenc7bd46502007-12-06 23:40:28 -08001459 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 -08001460 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001461
1462 return count;
1463}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001464static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001465
1466
1467/*
1468 * Show current 802.3ad partner mac.
1469 */
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001470static ssize_t bonding_show_ad_partner_mac(struct device *d,
1471 struct device_attribute *attr,
1472 char *buf)
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001473{
1474 int count = 0;
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001475 struct bonding *bond = to_bond(d);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001476
1477 if (bond->params.mode == BOND_MODE_8023AD) {
1478 struct ad_info ad_info;
1479 if (!bond_3ad_get_active_agg_info(bond, &ad_info)) {
Johannes Berge1749612008-10-27 15:59:26 -07001480 count = sprintf(buf, "%pM\n", ad_info.partner_system);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001481 }
1482 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001483
1484 return count;
1485}
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001486static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001487
1488
1489
1490static struct attribute *per_bond_attrs[] = {
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001491 &dev_attr_slaves.attr,
1492 &dev_attr_mode.attr,
Jay Vosburghdd957c52007-10-09 19:57:24 -07001493 &dev_attr_fail_over_mac.attr,
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001494 &dev_attr_arp_validate.attr,
1495 &dev_attr_arp_interval.attr,
1496 &dev_attr_arp_ip_target.attr,
1497 &dev_attr_downdelay.attr,
1498 &dev_attr_updelay.attr,
1499 &dev_attr_lacp_rate.attr,
Jay Vosburghfd989c82008-11-04 17:51:16 -08001500 &dev_attr_ad_select.attr,
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001501 &dev_attr_xmit_hash_policy.attr,
Moni Shoua7893b242008-05-17 21:10:12 -07001502 &dev_attr_num_grat_arp.attr,
Brian Haley305d5522008-11-04 17:51:14 -08001503 &dev_attr_num_unsol_na.attr,
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001504 &dev_attr_miimon.attr,
1505 &dev_attr_primary.attr,
1506 &dev_attr_use_carrier.attr,
1507 &dev_attr_active_slave.attr,
1508 &dev_attr_mii_status.attr,
1509 &dev_attr_ad_aggregator.attr,
1510 &dev_attr_ad_num_ports.attr,
1511 &dev_attr_ad_actor_key.attr,
1512 &dev_attr_ad_partner_key.attr,
1513 &dev_attr_ad_partner_mac.attr,
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001514 NULL,
1515};
1516
1517static struct attribute_group bonding_group = {
1518 .name = "bonding",
1519 .attrs = per_bond_attrs,
1520};
1521
1522/*
1523 * Initialize sysfs. This sets up the bonding_masters file in
1524 * /sys/class/net.
1525 */
1526int bond_create_sysfs(void)
1527{
Jay Vosburghb8a97872008-06-13 18:12:04 -07001528 int ret;
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001529
Jay Vosburghb8a97872008-06-13 18:12:04 -07001530 ret = netdev_class_create_file(&class_attr_bonding_masters);
Jay Vosburgh877cbd32007-01-19 18:15:47 -08001531 /*
1532 * Permit multiple loads of the module by ignoring failures to
1533 * create the bonding_masters sysfs file. Bonding devices
1534 * created by second or subsequent loads of the module will
1535 * not be listed in, or controllable by, bonding_masters, but
1536 * will have the usual "bonding" sysfs directory.
1537 *
1538 * This is done to preserve backwards compatibility for
1539 * initscripts/sysconfig, which load bonding multiple times to
1540 * configure multiple bonding devices.
1541 */
1542 if (ret == -EEXIST) {
Stephen Hemminger38d2f382008-05-14 22:35:04 -07001543 /* Is someone being kinky and naming a device bonding_master? */
1544 if (__dev_get_by_name(&init_net,
1545 class_attr_bonding_masters.attr.name))
1546 printk(KERN_ERR
1547 "network device named %s already exists in sysfs",
1548 class_attr_bonding_masters.attr.name);
Jay Vosburgh877cbd32007-01-19 18:15:47 -08001549 }
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001550
1551 return ret;
1552
1553}
1554
1555/*
1556 * Remove /sys/class/net/bonding_masters.
1557 */
1558void bond_destroy_sysfs(void)
1559{
Jay Vosburghb8a97872008-06-13 18:12:04 -07001560 netdev_class_remove_file(&class_attr_bonding_masters);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001561}
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 */
1567int bond_create_sysfs_entry(struct bonding *bond)
1568{
1569 struct net_device *dev = bond->dev;
1570 int err;
1571
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001572 err = sysfs_create_group(&(dev->dev.kobj), &bonding_group);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001573 if (err) {
1574 printk(KERN_EMERG "eek! didn't create group!\n");
1575 }
1576
1577 if (expected_refcount < 1)
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001578 expected_refcount = atomic_read(&bond->dev->dev.kobj.kref.refcount);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001579
1580 return err;
1581}
1582/*
1583 * Remove sysfs entries for each bond.
1584 */
1585void bond_destroy_sysfs_entry(struct bonding *bond)
1586{
1587 struct net_device *dev = bond->dev;
1588
Greg Kroah-Hartman43cb76d2002-04-09 12:14:34 -07001589 sysfs_remove_group(&(dev->dev.kobj), &bonding_group);
Mitch Williamsb76cdba2005-11-09 10:36:41 -08001590}
1591