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-rw-r--r--drivers/net/bonding/Makefile2
-rw-r--r--drivers/net/bonding/bond_main.c23
-rw-r--r--drivers/net/bonding/bond_sysfs.c1399
-rw-r--r--drivers/net/bonding/bonding.h7
4 files changed, 1429 insertions, 2 deletions
diff --git a/drivers/net/bonding/Makefile b/drivers/net/bonding/Makefile
index cf50384b469e..5cdae2bc055a 100644
--- a/drivers/net/bonding/Makefile
+++ b/drivers/net/bonding/Makefile
@@ -4,5 +4,5 @@
4 4
5obj-$(CONFIG_BONDING) += bonding.o 5obj-$(CONFIG_BONDING) += bonding.o
6 6
7bonding-objs := bond_main.o bond_3ad.o bond_alb.o 7bonding-objs := bond_main.o bond_3ad.o bond_alb.o bond_sysfs.o
8 8
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d5415ba9bdb0..5ac9718c5988 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -600,6 +600,7 @@ LIST_HEAD(bond_dev_list);
600static struct proc_dir_entry *bond_proc_dir = NULL; 600static struct proc_dir_entry *bond_proc_dir = NULL;
601#endif 601#endif
602 602
603extern struct rw_semaphore bonding_rwsem;
603static u32 arp_target[BOND_MAX_ARP_TARGETS] = { 0, } ; 604static u32 arp_target[BOND_MAX_ARP_TARGETS] = { 0, } ;
604static int arp_ip_count = 0; 605static int arp_ip_count = 0;
605static int bond_mode = BOND_MODE_ROUNDROBIN; 606static int bond_mode = BOND_MODE_ROUNDROBIN;
@@ -1960,6 +1961,10 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
1960 1961
1961 write_unlock_bh(&bond->lock); 1962 write_unlock_bh(&bond->lock);
1962 1963
1964 res = bond_create_slave_symlinks(bond_dev, slave_dev);
1965 if (res)
1966 goto err_unset_master;
1967
1963 printk(KERN_INFO DRV_NAME 1968 printk(KERN_INFO DRV_NAME
1964 ": %s: enslaving %s as a%s interface with a%s link.\n", 1969 ": %s: enslaving %s as a%s interface with a%s link.\n",
1965 bond_dev->name, slave_dev->name, 1970 bond_dev->name, slave_dev->name,
@@ -2133,6 +2138,9 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev)
2133 2138
2134 write_unlock_bh(&bond->lock); 2139 write_unlock_bh(&bond->lock);
2135 2140
2141 /* must do this from outside any spinlocks */
2142 bond_destroy_slave_symlinks(bond_dev, slave_dev);
2143
2136 bond_del_vlans_from_slave(bond, slave_dev); 2144 bond_del_vlans_from_slave(bond, slave_dev);
2137 2145
2138 /* If the mode USES_PRIMARY, then we should only remove its 2146 /* If the mode USES_PRIMARY, then we should only remove its
@@ -2224,6 +2232,7 @@ static int bond_release_all(struct net_device *bond_dev)
2224 */ 2232 */
2225 write_unlock_bh(&bond->lock); 2233 write_unlock_bh(&bond->lock);
2226 2234
2235 bond_destroy_slave_symlinks(bond_dev, slave_dev);
2227 bond_del_vlans_from_slave(bond, slave_dev); 2236 bond_del_vlans_from_slave(bond, slave_dev);
2228 2237
2229 /* If the mode USES_PRIMARY, then we should only remove its 2238 /* If the mode USES_PRIMARY, then we should only remove its
@@ -3518,7 +3527,10 @@ static int bond_event_changename(struct bonding *bond)
3518 bond_remove_proc_entry(bond); 3527 bond_remove_proc_entry(bond);
3519 bond_create_proc_entry(bond); 3528 bond_create_proc_entry(bond);
3520#endif 3529#endif
3521 3530 down_write(&(bonding_rwsem));
3531 bond_destroy_sysfs_entry(bond);
3532 bond_create_sysfs_entry(bond);
3533 up_write(&(bonding_rwsem));
3522 return NOTIFY_DONE; 3534 return NOTIFY_DONE;
3523} 3535}
3524 3536
@@ -3995,6 +4007,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
3995 return -EPERM; 4007 return -EPERM;
3996 } 4008 }
3997 4009
4010 down_write(&(bonding_rwsem));
3998 slave_dev = dev_get_by_name(ifr->ifr_slave); 4011 slave_dev = dev_get_by_name(ifr->ifr_slave);
3999 4012
4000 dprintk("slave_dev=%p: \n", slave_dev); 4013 dprintk("slave_dev=%p: \n", slave_dev);
@@ -4027,6 +4040,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
4027 dev_put(slave_dev); 4040 dev_put(slave_dev);
4028 } 4041 }
4029 4042
4043 up_write(&(bonding_rwsem));
4030 return res; 4044 return res;
4031} 4045}
4032 4046
@@ -4962,6 +4976,7 @@ int bond_create(char *name, struct bond_params *params, struct bonding **newbond
4962 *newbond = bond_dev->priv; 4976 *newbond = bond_dev->priv;
4963 4977
4964 rtnl_unlock(); /* allows sysfs registration of net device */ 4978 rtnl_unlock(); /* allows sysfs registration of net device */
4979 res = bond_create_sysfs_entry(bond_dev->priv);
4965 goto done; 4980 goto done;
4966out_bond: 4981out_bond:
4967 bond_deinit(bond_dev); 4982 bond_deinit(bond_dev);
@@ -4996,6 +5011,10 @@ static int __init bonding_init(void)
4996 goto err; 5011 goto err;
4997 } 5012 }
4998 5013
5014 res = bond_create_sysfs();
5015 if (res)
5016 goto err;
5017
4999 register_netdevice_notifier(&bond_netdev_notifier); 5018 register_netdevice_notifier(&bond_netdev_notifier);
5000 register_inetaddr_notifier(&bond_inetaddr_notifier); 5019 register_inetaddr_notifier(&bond_inetaddr_notifier);
5001 5020
@@ -5003,6 +5022,7 @@ static int __init bonding_init(void)
5003err: 5022err:
5004 rtnl_lock(); 5023 rtnl_lock();
5005 bond_free_all(); 5024 bond_free_all();
5025 bond_destroy_sysfs();
5006 rtnl_unlock(); 5026 rtnl_unlock();
5007out: 5027out:
5008 return res; 5028 return res;
@@ -5016,6 +5036,7 @@ static void __exit bonding_exit(void)
5016 5036
5017 rtnl_lock(); 5037 rtnl_lock();
5018 bond_free_all(); 5038 bond_free_all();
5039 bond_destroy_sysfs();
5019 rtnl_unlock(); 5040 rtnl_unlock();
5020} 5041}
5021 5042
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
new file mode 100644
index 000000000000..c5f1c52863cb
--- /dev/null
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -0,0 +1,1399 @@
1
2/*
3 * Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 *
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 *
19 * The full GNU General Public License is included in this distribution in the
20 * file called LICENSE.
21 *
22 *
23 * Changes:
24 *
25 * 2004/12/12 - Mitch Williams <mitch.a.williams at intel dot com>
26 * - Initial creation of sysfs interface.
27 *
28 * 2005/06/22 - Radheka Godse <radheka.godse at intel dot com>
29 * - Added ifenslave -c type functionality to sysfs
30 * - Added sysfs files for attributes such as MII Status and
31 * 802.3ad aggregator that are displayed in /proc
32 * - Added "name value" format to sysfs "mode" and
33 * "lacp_rate", for e.g., "active-backup 1" or "slow 0" for
34 * consistency and ease of script parsing
35 * - Fixed reversal of octets in arp_ip_targets via sysfs
36 * - sysfs support to handle bond interface re-naming
37 * - Moved all sysfs entries into /sys/class/net instead of
38 * of using a standalone subsystem.
39 * - Added sysfs symlinks between masters and slaves
40 * - Corrected bugs in sysfs unload path when creating bonds
41 * with existing interface names.
42 * - Removed redundant sysfs stat file since it duplicates slave info
43 * from the proc file
44 * - Fixed errors in sysfs show/store arp targets.
45 * - For consistency with ifenslave, instead of exiting
46 * with an error, updated bonding sysfs to
47 * close and attempt to enslave an up adapter.
48 * - Fixed NULL dereference when adding a slave interface
49 * that does not exist.
50 * - Added checks in sysfs bonding to reject invalid ip addresses
51 * - Synch up with post linux-2.6.12 bonding changes
52 * - Created sysfs bond attrib for xmit_hash_policy
53 *
54 * 2005/09/19 - Mitch Williams <mitch.a.williams at intel dot com>
55 * - Changed semantics of multi-item files to be command-based
56 * instead of list-based.
57 * - Changed ARP target handler to use in_aton instead of sscanf
58 * - Style changes.
59 * 2005/09/27 - Mitch Williams <mitch.a.williams at intel dot com>
60 * - Made line endings consistent.
61 * - Removed "none" from primary output - just put blank instead
62 * - Fixed bug with long interface names
63 */
64#include <linux/config.h>
65#include <linux/kernel.h>
66#include <linux/module.h>
67#include <linux/sched.h>
68#include <linux/device.h>
69#include <linux/sysdev.h>
70#include <linux/fs.h>
71#include <linux/types.h>
72#include <linux/string.h>
73#include <linux/netdevice.h>
74#include <linux/inetdevice.h>
75#include <linux/in.h>
76#include <linux/sysfs.h>
77#include <linux/string.h>
78#include <linux/ctype.h>
79#include <linux/inet.h>
80#include <linux/rtnetlink.h>
81
82/* #define BONDING_DEBUG 1 */
83#include "bonding.h"
84#define to_class_dev(obj) container_of(obj,struct class_device,kobj)
85#define to_net_dev(class) container_of(class, struct net_device, class_dev)
86#define to_bond(cd) ((struct bonding *)(to_net_dev(cd)->priv))
87
88/*---------------------------- Declarations -------------------------------*/
89
90
91extern struct list_head bond_dev_list;
92extern struct bond_params bonding_defaults;
93extern struct bond_parm_tbl bond_mode_tbl[];
94extern struct bond_parm_tbl bond_lacp_tbl[];
95extern struct bond_parm_tbl xmit_hashtype_tbl[];
96
97static int expected_refcount = -1;
98static struct class *netdev_class;
99/*--------------------------- Data Structures -----------------------------*/
100
101/* Bonding sysfs lock. Why can't we just use the subsytem lock?
102 * Because kobject_register tries to acquire the subsystem lock. If
103 * we already hold the lock (which we would if the user was creating
104 * a new bond through the sysfs interface), we deadlock.
105 * This lock is only needed when deleting a bond - we need to make sure
106 * that we don't collide with an ongoing ioctl.
107 */
108
109struct rw_semaphore bonding_rwsem;
110
111
112
113
114/*------------------------------ Functions --------------------------------*/
115
116/*
117 * "show" function for the bond_masters attribute.
118 * The class parameter is ignored.
119 */
120static ssize_t bonding_show_bonds(struct class *cls, char *buffer)
121{
122 int res = 0;
123 struct bonding *bond;
124
125 down_read(&(bonding_rwsem));
126
127 list_for_each_entry(bond, &bond_dev_list, bond_list) {
128 if (res > (PAGE_SIZE - IFNAMSIZ)) {
129 /* not enough space for another interface name */
130 if ((PAGE_SIZE - res) > 10)
131 res = PAGE_SIZE - 10;
132 res += sprintf(buffer + res, "++more++");
133 break;
134 }
135 res += sprintf(buffer + res, "%s ",
136 bond->dev->name);
137 }
138 res += sprintf(buffer + res, "\n");
139 res++;
140 up_read(&(bonding_rwsem));
141 return res;
142}
143
144/*
145 * "store" function for the bond_masters attribute. This is what
146 * creates and deletes entire bonds.
147 *
148 * The class parameter is ignored.
149 *
150 */
151
152static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t count)
153{
154 char command[IFNAMSIZ + 1] = {0, };
155 char *ifname;
156 int res = count;
157 struct bonding *bond;
158 struct bonding *nxt;
159
160 down_write(&(bonding_rwsem));
161 sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
162 ifname = command + 1;
163 if ((strlen(command) <= 1) ||
164 !dev_valid_name(ifname))
165 goto err_no_cmd;
166
167 if (command[0] == '+') {
168
169 /* Check to see if the bond already exists. */
170 list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
171 if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) {
172 printk(KERN_ERR DRV_NAME
173 ": cannot add bond %s; it already exists\n",
174 ifname);
175 res = -EPERM;
176 goto out;
177 }
178
179 printk(KERN_INFO DRV_NAME
180 ": %s is being created...\n", ifname);
181 if (bond_create(ifname, &bonding_defaults, &bond)) {
182 printk(KERN_INFO DRV_NAME
183 ": %s interface already exists. Bond creation failed.\n",
184 ifname);
185 res = -EPERM;
186 }
187 goto out;
188 }
189
190 if (command[0] == '-') {
191 list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
192 if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) {
193 rtnl_lock();
194 /* check the ref count on the bond's kobject.
195 * If it's > expected, then there's a file open,
196 * and we have to fail.
197 */
198 if (atomic_read(&bond->dev->class_dev.kobj.kref.refcount)
199 > expected_refcount){
200 rtnl_unlock();
201 printk(KERN_INFO DRV_NAME
202 ": Unable remove bond %s due to open references.\n",
203 ifname);
204 res = -EPERM;
205 goto out;
206 }
207 printk(KERN_INFO DRV_NAME
208 ": %s is being deleted...\n",
209 bond->dev->name);
210 unregister_netdevice(bond->dev);
211 bond_deinit(bond->dev);
212 bond_destroy_sysfs_entry(bond);
213 rtnl_unlock();
214 goto out;
215 }
216
217 printk(KERN_ERR DRV_NAME
218 ": unable to delete non-existent bond %s\n", ifname);
219 res = -ENODEV;
220 goto out;
221 }
222
223err_no_cmd:
224 printk(KERN_ERR DRV_NAME
225 ": no command found in bonding_masters. Use +ifname or -ifname.\n");
226 res = -EPERM;
227
228 /* Always return either count or an error. If you return 0, you'll
229 * get called forever, which is bad.
230 */
231out:
232 up_write(&(bonding_rwsem));
233 return res;
234}
235/* class attribute for bond_masters file. This ends up in /sys/class/net */
236static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO,
237 bonding_show_bonds, bonding_store_bonds);
238
239int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave)
240{
241 char linkname[IFNAMSIZ+7];
242 int ret = 0;
243
244 /* first, create a link from the slave back to the master */
245 ret = sysfs_create_link(&(slave->class_dev.kobj), &(master->class_dev.kobj),
246 "master");
247 if (ret)
248 return ret;
249 /* next, create a link from the master to the slave */
250 sprintf(linkname,"slave_%s",slave->name);
251 ret = sysfs_create_link(&(master->class_dev.kobj), &(slave->class_dev.kobj),
252 linkname);
253 return ret;
254
255}
256
257void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave)
258{
259 char linkname[IFNAMSIZ+7];
260
261 sysfs_remove_link(&(slave->class_dev.kobj), "master");
262 sprintf(linkname,"slave_%s",slave->name);
263 sysfs_remove_link(&(master->class_dev.kobj), linkname);
264}
265
266
267/*
268 * Show the slaves in the current bond.
269 */
270static ssize_t bonding_show_slaves(struct class_device *cd, char *buf)
271{
272 struct slave *slave;
273 int i, res = 0;
274 struct bonding *bond = to_bond(cd);
275
276 read_lock_bh(&bond->lock);
277 bond_for_each_slave(bond, slave, i) {
278 if (res > (PAGE_SIZE - IFNAMSIZ)) {
279 /* not enough space for another interface name */
280 if ((PAGE_SIZE - res) > 10)
281 res = PAGE_SIZE - 10;
282 res += sprintf(buf + res, "++more++");
283 break;
284 }
285 res += sprintf(buf + res, "%s ", slave->dev->name);
286 }
287 read_unlock_bh(&bond->lock);
288 res += sprintf(buf + res, "\n");
289 res++;
290 return res;
291}
292
293/*
294 * Set the slaves in the current bond. The bond interface must be
295 * up for this to succeed.
296 * This function is largely the same flow as bonding_update_bonds().
297 */
298static ssize_t bonding_store_slaves(struct class_device *cd, const char *buffer, size_t count)
299{
300 char command[IFNAMSIZ + 1] = { 0, };
301 char *ifname;
302 int i, res, found, ret = count;
303 struct slave *slave;
304 struct net_device *dev = 0;
305 struct bonding *bond = to_bond(cd);
306
307 /* Quick sanity check -- is the bond interface up? */
308 if (!(bond->dev->flags & IFF_UP)) {
309 printk(KERN_ERR DRV_NAME
310 ": %s: Unable to update slaves because interface is down.\n",
311 bond->dev->name);
312 ret = -EPERM;
313 goto out;
314 }
315
316 /* Note: We can't hold bond->lock here, as bond_create grabs it. */
317
318 sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
319 ifname = command + 1;
320 if ((strlen(command) <= 1) ||
321 !dev_valid_name(ifname))
322 goto err_no_cmd;
323
324 if (command[0] == '+') {
325
326 /* Got a slave name in ifname. Is it already in the list? */
327 found = 0;
328 read_lock_bh(&bond->lock);
329 bond_for_each_slave(bond, slave, i)
330 if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
331 printk(KERN_ERR DRV_NAME
332 ": %s: Interface %s is already enslaved!\n",
333 bond->dev->name, ifname);
334 ret = -EPERM;
335 read_unlock_bh(&bond->lock);
336 goto out;
337 }
338
339 read_unlock_bh(&bond->lock);
340 printk(KERN_INFO DRV_NAME ": %s: Adding slave %s.\n",
341 bond->dev->name, ifname);
342 dev = dev_get_by_name(ifname);
343 if (!dev) {
344 printk(KERN_INFO DRV_NAME
345 ": %s: Interface %s does not exist!\n",
346 bond->dev->name, ifname);
347 ret = -EPERM;
348 goto out;
349 }
350 else
351 dev_put(dev);
352
353 if (dev->flags & IFF_UP) {
354 printk(KERN_ERR DRV_NAME
355 ": %s: Error: Unable to enslave %s "
356 "because it is already up.\n",
357 bond->dev->name, dev->name);
358 ret = -EPERM;
359 goto out;
360 }
361 /* If this is the first slave, then we need to set
362 the master's hardware address to be the same as the
363 slave's. */
364 if (!(*((u32 *) & (bond->dev->dev_addr[0])))) {
365 memcpy(bond->dev->dev_addr, dev->dev_addr,
366 dev->addr_len);
367 }
368
369 /* Set the slave's MTU to match the bond */
370 if (dev->mtu != bond->dev->mtu) {
371 if (dev->change_mtu) {
372 res = dev->change_mtu(dev,
373 bond->dev->mtu);
374 if (res) {
375 ret = res;
376 goto out;
377 }
378 } else {
379 dev->mtu = bond->dev->mtu;
380 }
381 }
382 rtnl_lock();
383 res = bond_enslave(bond->dev, dev);
384 rtnl_unlock();
385 if (res) {
386 ret = res;
387 }
388 goto out;
389 }
390
391 if (command[0] == '-') {
392 dev = NULL;
393 bond_for_each_slave(bond, slave, i)
394 if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
395 dev = slave->dev;
396 break;
397 }
398 if (dev) {
399 printk(KERN_INFO DRV_NAME ": %s: Removing slave %s\n",
400 bond->dev->name, dev->name);
401 rtnl_lock();
402 res = bond_release(bond->dev, dev);
403 rtnl_unlock();
404 if (res) {
405 ret = res;
406 goto out;
407 }
408 /* set the slave MTU to the default */
409 if (dev->change_mtu) {
410 dev->change_mtu(dev, 1500);
411 } else {
412 dev->mtu = 1500;
413 }
414 }
415 else {
416 printk(KERN_ERR DRV_NAME ": unable to remove non-existent slave %s for bond %s.\n",
417 ifname, bond->dev->name);
418 ret = -ENODEV;
419 }
420 goto out;
421 }
422
423err_no_cmd:
424 printk(KERN_ERR DRV_NAME ": no command found in slaves file for bond %s. Use +ifname or -ifname.\n", bond->dev->name);
425 ret = -EPERM;
426
427out:
428 return ret;
429}
430
431static CLASS_DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, bonding_store_slaves);
432
433/*
434 * Show and set the bonding mode. The bond interface must be down to
435 * change the mode.
436 */
437static ssize_t bonding_show_mode(struct class_device *cd, char *buf)
438{
439 struct bonding *bond = to_bond(cd);
440
441 return sprintf(buf, "%s %d\n",
442 bond_mode_tbl[bond->params.mode].modename,
443 bond->params.mode) + 1;
444}
445
446static ssize_t bonding_store_mode(struct class_device *cd, const char *buf, size_t count)
447{
448 int new_value, ret = count;
449 struct bonding *bond = to_bond(cd);
450
451 if (bond->dev->flags & IFF_UP) {
452 printk(KERN_ERR DRV_NAME
453 ": unable to update mode of %s because interface is up.\n",
454 bond->dev->name);
455 ret = -EPERM;
456 goto out;
457 }
458
459 new_value = bond_parse_parm((char *)buf, bond_mode_tbl);
460 if (new_value < 0) {
461 printk(KERN_ERR DRV_NAME
462 ": %s: Ignoring invalid mode value %.*s.\n",
463 bond->dev->name,
464 (int)strlen(buf) - 1, buf);
465 ret = -EINVAL;
466 goto out;
467 } else {
468 bond->params.mode = new_value;
469 bond_set_mode_ops(bond, bond->params.mode);
470 printk(KERN_INFO DRV_NAME ": %s: setting mode to %s (%d).\n",
471 bond->dev->name, bond_mode_tbl[new_value].modename, new_value);
472 }
473out:
474 return ret;
475}
476static CLASS_DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, bonding_show_mode, bonding_store_mode);
477
478/*
479 * Show and set the bonding transmit hash method. The bond interface must be down to
480 * change the xmit hash policy.
481 */
482static ssize_t bonding_show_xmit_hash(struct class_device *cd, char *buf)
483{
484 int count;
485 struct bonding *bond = to_bond(cd);
486
487 if ((bond->params.mode != BOND_MODE_XOR) &&
488 (bond->params.mode != BOND_MODE_8023AD)) {
489 // Not Applicable
490 count = sprintf(buf, "NA\n") + 1;
491 } else {
492 count = sprintf(buf, "%s %d\n",
493 xmit_hashtype_tbl[bond->params.xmit_policy].modename,
494 bond->params.xmit_policy) + 1;
495 }
496
497 return count;
498}
499
500static ssize_t bonding_store_xmit_hash(struct class_device *cd, const char *buf, size_t count)
501{
502 int new_value, ret = count;
503 struct bonding *bond = to_bond(cd);
504
505 if (bond->dev->flags & IFF_UP) {
506 printk(KERN_ERR DRV_NAME
507 "%s: Interface is up. Unable to update xmit policy.\n",
508 bond->dev->name);
509 ret = -EPERM;
510 goto out;
511 }
512
513 if ((bond->params.mode != BOND_MODE_XOR) &&
514 (bond->params.mode != BOND_MODE_8023AD)) {
515 printk(KERN_ERR DRV_NAME
516 "%s: Transmit hash policy is irrelevant in this mode.\n",
517 bond->dev->name);
518 ret = -EPERM;
519 goto out;
520 }
521
522 new_value = bond_parse_parm((char *)buf, xmit_hashtype_tbl);
523 if (new_value < 0) {
524 printk(KERN_ERR DRV_NAME
525 ": %s: Ignoring invalid xmit hash policy value %.*s.\n",
526 bond->dev->name,
527 (int)strlen(buf) - 1, buf);
528 ret = -EINVAL;
529 goto out;
530 } else {
531 bond->params.xmit_policy = new_value;
532 bond_set_mode_ops(bond, bond->params.mode);
533 printk(KERN_INFO DRV_NAME ": %s: setting xmit hash policy to %s (%d).\n",
534 bond->dev->name, xmit_hashtype_tbl[new_value].modename, new_value);
535 }
536out:
537 return ret;
538}
539static CLASS_DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, bonding_show_xmit_hash, bonding_store_xmit_hash);
540
541/*
542 * Show and set the arp timer interval. There are two tricky bits
543 * here. First, if ARP monitoring is activated, then we must disable
544 * MII monitoring. Second, if the ARP timer isn't running, we must
545 * start it.
546 */
547static ssize_t bonding_show_arp_interval(struct class_device *cd, char *buf)
548{
549 struct bonding *bond = to_bond(cd);
550
551 return sprintf(buf, "%d\n", bond->params.arp_interval) + 1;
552}
553
554static ssize_t bonding_store_arp_interval(struct class_device *cd, const char *buf, size_t count)
555{
556 int new_value, ret = count;
557 struct bonding *bond = to_bond(cd);
558
559 if (sscanf(buf, "%d", &new_value) != 1) {
560 printk(KERN_ERR DRV_NAME
561 ": %s: no arp_interval value specified.\n",
562 bond->dev->name);
563 ret = -EINVAL;
564 goto out;
565 }
566 if (new_value < 0) {
567 printk(KERN_ERR DRV_NAME
568 ": %s: Invalid arp_interval value %d not in range 1-%d; rejected.\n",
569 bond->dev->name, new_value, INT_MAX);
570 ret = -EINVAL;
571 goto out;
572 }
573
574 printk(KERN_INFO DRV_NAME
575 ": %s: Setting ARP monitoring interval to %d.\n",
576 bond->dev->name, new_value);
577 bond->params.arp_interval = new_value;
578 if (bond->params.miimon) {
579 printk(KERN_INFO DRV_NAME
580 ": %s: ARP monitoring cannot be used with MII monitoring. "
581 "%s Disabling MII monitoring.\n",
582 bond->dev->name, bond->dev->name);
583 bond->params.miimon = 0;
584 /* Kill MII timer, else it brings bond's link down */
585 if (bond->arp_timer.function) {
586 printk(KERN_INFO DRV_NAME
587 ": %s: Kill MII timer, else it brings bond's link down...\n",
588 bond->dev->name);
589 del_timer_sync(&bond->mii_timer);
590 }
591 }
592 if (!bond->params.arp_targets[0]) {
593 printk(KERN_INFO DRV_NAME
594 ": %s: ARP monitoring has been set up, "
595 "but no ARP targets have been specified.\n",
596 bond->dev->name);
597 }
598 if (bond->dev->flags & IFF_UP) {
599 /* If the interface is up, we may need to fire off
600 * the ARP timer. If the interface is down, the
601 * timer will get fired off when the open function
602 * is called.
603 */
604 if (bond->arp_timer.function) {
605 /* The timer's already set up, so fire it off */
606 mod_timer(&bond->arp_timer, jiffies + 1);
607 } else {
608 /* Set up the timer. */
609 init_timer(&bond->arp_timer);
610 bond->arp_timer.expires = jiffies + 1;
611 bond->arp_timer.data =
612 (unsigned long) bond->dev;
613 if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) {
614 bond->arp_timer.function =
615 (void *)
616 &bond_activebackup_arp_mon;
617 } else {
618 bond->arp_timer.function =
619 (void *)
620 &bond_loadbalance_arp_mon;
621 }
622 add_timer(&bond->arp_timer);
623 }
624 }
625
626out:
627 return ret;
628}
629static CLASS_DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR , bonding_show_arp_interval, bonding_store_arp_interval);
630
631/*
632 * Show and set the arp targets.
633 */
634static ssize_t bonding_show_arp_targets(struct class_device *cd, char *buf)
635{
636 int i, res = 0;
637 struct bonding *bond = to_bond(cd);
638
639 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
640 if (bond->params.arp_targets[i])
641 res += sprintf(buf + res, "%u.%u.%u.%u ",
642 NIPQUAD(bond->params.arp_targets[i]));
643 }
644 if (res)
645 res--; /* eat the leftover space */
646 res += sprintf(buf + res, "\n");
647 res++;
648 return res;
649}
650
651static ssize_t bonding_store_arp_targets(struct class_device *cd, const char *buf, size_t count)
652{
653 u32 newtarget;
654 int i = 0, done = 0, ret = count;
655 struct bonding *bond = to_bond(cd);
656 u32 *targets;
657
658 targets = bond->params.arp_targets;
659 newtarget = in_aton(buf + 1);
660 /* look for adds */
661 if (buf[0] == '+') {
662 if ((newtarget == 0) || (newtarget == INADDR_BROADCAST)) {
663 printk(KERN_ERR DRV_NAME
664 ": %s: invalid ARP target %u.%u.%u.%u specified for addition\n",
665 bond->dev->name, NIPQUAD(newtarget));
666 ret = -EINVAL;
667 goto out;
668 }
669 /* look for an empty slot to put the target in, and check for dupes */
670 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
671 if (targets[i] == newtarget) { /* duplicate */
672 printk(KERN_ERR DRV_NAME
673 ": %s: ARP target %u.%u.%u.%u is already present\n",
674 bond->dev->name, NIPQUAD(newtarget));
675 if (done)
676 targets[i] = 0;
677 ret = -EINVAL;
678 goto out;
679 }
680 if (targets[i] == 0 && !done) {
681 printk(KERN_INFO DRV_NAME
682 ": %s: adding ARP target %d.%d.%d.%d.\n",
683 bond->dev->name, NIPQUAD(newtarget));
684 done = 1;
685 targets[i] = newtarget;
686 }
687 }
688 if (!done) {
689 printk(KERN_ERR DRV_NAME
690 ": %s: ARP target table is full!\n",
691 bond->dev->name);
692 ret = -EINVAL;
693 goto out;
694 }
695
696 }
697 else if (buf[0] == '-') {
698 if ((newtarget == 0) || (newtarget == INADDR_BROADCAST)) {
699 printk(KERN_ERR DRV_NAME
700 ": %s: invalid ARP target %d.%d.%d.%d specified for removal\n",
701 bond->dev->name, NIPQUAD(newtarget));
702 ret = -EINVAL;
703 goto out;
704 }
705
706 for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) {
707 if (targets[i] == newtarget) {
708 printk(KERN_INFO DRV_NAME
709 ": %s: removing ARP target %d.%d.%d.%d.\n",
710 bond->dev->name, NIPQUAD(newtarget));
711 targets[i] = 0;
712 done = 1;
713 }
714 }
715 if (!done) {
716 printk(KERN_INFO DRV_NAME
717 ": %s: unable to remove nonexistent ARP target %d.%d.%d.%d.\n",
718 bond->dev->name, NIPQUAD(newtarget));
719 ret = -EINVAL;
720 goto out;
721 }
722 }
723 else {
724 printk(KERN_ERR DRV_NAME ": no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n",
725 bond->dev->name);
726 ret = -EPERM;
727 goto out;
728 }
729
730out:
731 return ret;
732}
733static CLASS_DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets);
734
735/*
736 * Show and set the up and down delays. These must be multiples of the
737 * MII monitoring value, and are stored internally as the multiplier.
738 * Thus, we must translate to MS for the real world.
739 */
740static ssize_t bonding_show_downdelay(struct class_device *cd, char *buf)
741{
742 struct bonding *bond = to_bond(cd);
743
744 return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon) + 1;
745}
746
747static ssize_t bonding_store_downdelay(struct class_device *cd, const char *buf, size_t count)
748{
749 int new_value, ret = count;
750 struct bonding *bond = to_bond(cd);
751
752 if (!(bond->params.miimon)) {
753 printk(KERN_ERR DRV_NAME
754 ": %s: Unable to set down delay as MII monitoring is disabled\n",
755 bond->dev->name);
756 ret = -EPERM;
757 goto out;
758 }
759
760 if (sscanf(buf, "%d", &new_value) != 1) {
761 printk(KERN_ERR DRV_NAME
762 ": %s: no down delay value specified.\n",
763 bond->dev->name);
764 ret = -EINVAL;
765 goto out;
766 }
767 if (new_value < 0) {
768 printk(KERN_ERR DRV_NAME
769 ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n",
770 bond->dev->name, new_value, 1, INT_MAX);
771 ret = -EINVAL;
772 goto out;
773 } else {
774 if ((new_value % bond->params.miimon) != 0) {
775 printk(KERN_WARNING DRV_NAME
776 ": %s: Warning: down delay (%d) is not a multiple "
777 "of miimon (%d), delay rounded to %d ms\n",
778 bond->dev->name, new_value, bond->params.miimon,
779 (new_value / bond->params.miimon) *
780 bond->params.miimon);
781 }
782 bond->params.downdelay = new_value / bond->params.miimon;
783 printk(KERN_INFO DRV_NAME ": %s: Setting down delay to %d.\n",
784 bond->dev->name, bond->params.downdelay * bond->params.miimon);
785
786 }
787
788out:
789 return ret;
790}
791static CLASS_DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR , bonding_show_downdelay, bonding_store_downdelay);
792
793static ssize_t bonding_show_updelay(struct class_device *cd, char *buf)
794{
795 struct bonding *bond = to_bond(cd);
796
797 return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon) + 1;
798
799}
800
801static ssize_t bonding_store_updelay(struct class_device *cd, const char *buf, size_t count)
802{
803 int new_value, ret = count;
804 struct bonding *bond = to_bond(cd);
805
806 if (!(bond->params.miimon)) {
807 printk(KERN_ERR DRV_NAME
808 ": %s: Unable to set up delay as MII monitoring is disabled\n",
809 bond->dev->name);
810 ret = -EPERM;
811 goto out;
812 }
813
814 if (sscanf(buf, "%d", &new_value) != 1) {
815 printk(KERN_ERR DRV_NAME
816 ": %s: no up delay value specified.\n",
817 bond->dev->name);
818 ret = -EINVAL;
819 goto out;
820 }
821 if (new_value < 0) {
822 printk(KERN_ERR DRV_NAME
823 ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n",
824 bond->dev->name, new_value, 1, INT_MAX);
825 ret = -EINVAL;
826 goto out;
827 } else {
828 if ((new_value % bond->params.miimon) != 0) {
829 printk(KERN_WARNING DRV_NAME
830 ": %s: Warning: up delay (%d) is not a multiple "
831 "of miimon (%d), updelay rounded to %d ms\n",
832 bond->dev->name, new_value, bond->params.miimon,
833 (new_value / bond->params.miimon) *
834 bond->params.miimon);
835 }
836 bond->params.updelay = new_value / bond->params.miimon;
837 printk(KERN_INFO DRV_NAME ": %s: Setting up delay to %d.\n",
838 bond->dev->name, bond->params.updelay * bond->params.miimon);
839
840 }
841
842out:
843 return ret;
844}
845static CLASS_DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR , bonding_show_updelay, bonding_store_updelay);
846
847/*
848 * Show and set the LACP interval. Interface must be down, and the mode
849 * must be set to 802.3ad mode.
850 */
851static ssize_t bonding_show_lacp(struct class_device *cd, char *buf)
852{
853 struct bonding *bond = to_bond(cd);
854
855 return sprintf(buf, "%s %d\n",
856 bond_lacp_tbl[bond->params.lacp_fast].modename,
857 bond->params.lacp_fast) + 1;
858}
859
860static ssize_t bonding_store_lacp(struct class_device *cd, const char *buf, size_t count)
861{
862 int new_value, ret = count;
863 struct bonding *bond = to_bond(cd);
864
865 if (bond->dev->flags & IFF_UP) {
866 printk(KERN_ERR DRV_NAME
867 ": %s: Unable to update LACP rate because interface is up.\n",
868 bond->dev->name);
869 ret = -EPERM;
870 goto out;
871 }
872
873 if (bond->params.mode != BOND_MODE_8023AD) {
874 printk(KERN_ERR DRV_NAME
875 ": %s: Unable to update LACP rate because bond is not in 802.3ad mode.\n",
876 bond->dev->name);
877 ret = -EPERM;
878 goto out;
879 }
880
881 new_value = bond_parse_parm((char *)buf, bond_lacp_tbl);
882
883 if ((new_value == 1) || (new_value == 0)) {
884 bond->params.lacp_fast = new_value;
885 printk(KERN_INFO DRV_NAME
886 ": %s: Setting LACP rate to %s (%d).\n",
887 bond->dev->name, bond_lacp_tbl[new_value].modename, new_value);
888 } else {
889 printk(KERN_ERR DRV_NAME
890 ": %s: Ignoring invalid LACP rate value %.*s.\n",
891 bond->dev->name, (int)strlen(buf) - 1, buf);
892 ret = -EINVAL;
893 }
894out:
895 return ret;
896}
897static CLASS_DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, bonding_show_lacp, bonding_store_lacp);
898
899/*
900 * Show and set the MII monitor interval. There are two tricky bits
901 * here. First, if MII monitoring is activated, then we must disable
902 * ARP monitoring. Second, if the timer isn't running, we must
903 * start it.
904 */
905static ssize_t bonding_show_miimon(struct class_device *cd, char *buf)
906{
907 struct bonding *bond = to_bond(cd);
908
909 return sprintf(buf, "%d\n", bond->params.miimon) + 1;
910}
911
912static ssize_t bonding_store_miimon(struct class_device *cd, const char *buf, size_t count)
913{
914 int new_value, ret = count;
915 struct bonding *bond = to_bond(cd);
916
917 if (sscanf(buf, "%d", &new_value) != 1) {
918 printk(KERN_ERR DRV_NAME
919 ": %s: no miimon value specified.\n",
920 bond->dev->name);
921 ret = -EINVAL;
922 goto out;
923 }
924 if (new_value < 0) {
925 printk(KERN_ERR DRV_NAME
926 ": %s: Invalid miimon value %d not in range %d-%d; rejected.\n",
927 bond->dev->name, new_value, 1, INT_MAX);
928 ret = -EINVAL;
929 goto out;
930 } else {
931 printk(KERN_INFO DRV_NAME
932 ": %s: Setting MII monitoring interval to %d.\n",
933 bond->dev->name, new_value);
934 bond->params.miimon = new_value;
935 if(bond->params.updelay)
936 printk(KERN_INFO DRV_NAME
937 ": %s: Note: Updating updelay (to %d) "
938 "since it is a multiple of the miimon value.\n",
939 bond->dev->name,
940 bond->params.updelay * bond->params.miimon);
941 if(bond->params.downdelay)
942 printk(KERN_INFO DRV_NAME
943 ": %s: Note: Updating downdelay (to %d) "
944 "since it is a multiple of the miimon value.\n",
945 bond->dev->name,
946 bond->params.downdelay * bond->params.miimon);
947 if (bond->params.arp_interval) {
948 printk(KERN_INFO DRV_NAME
949 ": %s: MII monitoring cannot be used with "
950 "ARP monitoring. Disabling ARP monitoring...\n",
951 bond->dev->name);
952 bond->params.arp_interval = 0;
953 /* Kill ARP timer, else it brings bond's link down */
954 if (bond->mii_timer.function) {
955 printk(KERN_INFO DRV_NAME
956 ": %s: Kill ARP timer, else it brings bond's link down...\n",
957 bond->dev->name);
958 del_timer_sync(&bond->arp_timer);
959 }
960 }
961
962 if (bond->dev->flags & IFF_UP) {
963 /* If the interface is up, we may need to fire off
964 * the MII timer. If the interface is down, the
965 * timer will get fired off when the open function
966 * is called.
967 */
968 if (bond->mii_timer.function) {
969 /* The timer's already set up, so fire it off */
970 mod_timer(&bond->mii_timer, jiffies + 1);
971 } else {
972 /* Set up the timer. */
973 init_timer(&bond->mii_timer);
974 bond->mii_timer.expires = jiffies + 1;
975 bond->mii_timer.data =
976 (unsigned long) bond->dev;
977 bond->mii_timer.function =
978 (void *) &bond_mii_monitor;
979 add_timer(&bond->mii_timer);
980 }
981 }
982 }
983out:
984 return ret;
985}
986static CLASS_DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, bonding_show_miimon, bonding_store_miimon);
987
988/*
989 * Show and set the primary slave. The store function is much
990 * simpler than bonding_store_slaves function because it only needs to
991 * handle one interface name.
992 * The bond must be a mode that supports a primary for this be
993 * set.
994 */
995static ssize_t bonding_show_primary(struct class_device *cd, char *buf)
996{
997 int count = 0;
998 struct bonding *bond = to_bond(cd);
999
1000 if (bond->primary_slave)
1001 count = sprintf(buf, "%s\n", bond->primary_slave->dev->name) + 1;
1002 else
1003 count = sprintf(buf, "\n") + 1;
1004
1005 return count;
1006}
1007
1008static ssize_t bonding_store_primary(struct class_device *cd, const char *buf, size_t count)
1009{
1010 int i;
1011 struct slave *slave;
1012 struct bonding *bond = to_bond(cd);
1013
1014 write_lock_bh(&bond->lock);
1015 if (!USES_PRIMARY(bond->params.mode)) {
1016 printk(KERN_INFO DRV_NAME
1017 ": %s: Unable to set primary slave; %s is in mode %d\n",
1018 bond->dev->name, bond->dev->name, bond->params.mode);
1019 } else {
1020 bond_for_each_slave(bond, slave, i) {
1021 if (strnicmp
1022 (slave->dev->name, buf,
1023 strlen(slave->dev->name)) == 0) {
1024 printk(KERN_INFO DRV_NAME
1025 ": %s: Setting %s as primary slave.\n",
1026 bond->dev->name, slave->dev->name);
1027 bond->primary_slave = slave;
1028 bond_select_active_slave(bond);
1029 goto out;
1030 }
1031 }
1032
1033 /* if we got here, then we didn't match the name of any slave */
1034
1035 if (strlen(buf) == 0 || buf[0] == '\n') {
1036 printk(KERN_INFO DRV_NAME
1037 ": %s: Setting primary slave to None.\n",
1038 bond->dev->name);
1039 bond->primary_slave = 0;
1040 bond_select_active_slave(bond);
1041 } else {
1042 printk(KERN_INFO DRV_NAME
1043 ": %s: Unable to set %.*s as primary slave as it is not a slave.\n",
1044 bond->dev->name, (int)strlen(buf) - 1, buf);
1045 }
1046 }
1047out:
1048 write_unlock_bh(&bond->lock);
1049 return count;
1050}
1051static CLASS_DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, bonding_show_primary, bonding_store_primary);
1052
1053/*
1054 * Show and set the use_carrier flag.
1055 */
1056static ssize_t bonding_show_carrier(struct class_device *cd, char *buf)
1057{
1058 struct bonding *bond = to_bond(cd);
1059
1060 return sprintf(buf, "%d\n", bond->params.use_carrier) + 1;
1061}
1062
1063static ssize_t bonding_store_carrier(struct class_device *cd, const char *buf, size_t count)
1064{
1065 int new_value, ret = count;
1066 struct bonding *bond = to_bond(cd);
1067
1068
1069 if (sscanf(buf, "%d", &new_value) != 1) {
1070 printk(KERN_ERR DRV_NAME
1071 ": %s: no use_carrier value specified.\n",
1072 bond->dev->name);
1073 ret = -EINVAL;
1074 goto out;
1075 }
1076 if ((new_value == 0) || (new_value == 1)) {
1077 bond->params.use_carrier = new_value;
1078 printk(KERN_INFO DRV_NAME ": %s: Setting use_carrier to %d.\n",
1079 bond->dev->name, new_value);
1080 } else {
1081 printk(KERN_INFO DRV_NAME
1082 ": %s: Ignoring invalid use_carrier value %d.\n",
1083 bond->dev->name, new_value);
1084 }
1085out:
1086 return count;
1087}
1088static CLASS_DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, bonding_show_carrier, bonding_store_carrier);
1089
1090
1091/*
1092 * Show and set currently active_slave.
1093 */
1094static ssize_t bonding_show_active_slave(struct class_device *cd, char *buf)
1095{
1096 struct slave *curr;
1097 struct bonding *bond = to_bond(cd);
1098 int count;
1099
1100
1101 read_lock(&bond->curr_slave_lock);
1102 curr = bond->curr_active_slave;
1103 read_unlock(&bond->curr_slave_lock);
1104
1105 if (USES_PRIMARY(bond->params.mode) && curr)
1106 count = sprintf(buf, "%s\n", curr->dev->name) + 1;
1107 else
1108 count = sprintf(buf, "\n") + 1;
1109 return count;
1110}
1111
1112static ssize_t bonding_store_active_slave(struct class_device *cd, const char *buf, size_t count)
1113{
1114 int i;
1115 struct slave *slave;
1116 struct slave *old_active = NULL;
1117 struct slave *new_active = NULL;
1118 struct bonding *bond = to_bond(cd);
1119
1120 write_lock_bh(&bond->lock);
1121 if (!USES_PRIMARY(bond->params.mode)) {
1122 printk(KERN_INFO DRV_NAME
1123 ": %s: Unable to change active slave; %s is in mode %d\n",
1124 bond->dev->name, bond->dev->name, bond->params.mode);
1125 } else {
1126 bond_for_each_slave(bond, slave, i) {
1127 if (strnicmp
1128 (slave->dev->name, buf,
1129 strlen(slave->dev->name)) == 0) {
1130 old_active = bond->curr_active_slave;
1131 new_active = slave;
1132 if (new_active && (new_active == old_active)) {
1133 /* do nothing */
1134 printk(KERN_INFO DRV_NAME
1135 ": %s: %s is already the current active slave.\n",
1136 bond->dev->name, slave->dev->name);
1137 goto out;
1138 }
1139 else {
1140 if ((new_active) &&
1141 (old_active) &&
1142 (new_active->link == BOND_LINK_UP) &&
1143 IS_UP(new_active->dev)) {
1144 printk(KERN_INFO DRV_NAME
1145 ": %s: Setting %s as active slave.\n",
1146 bond->dev->name, slave->dev->name);
1147 bond_change_active_slave(bond, new_active);
1148 }
1149 else {
1150 printk(KERN_INFO DRV_NAME
1151 ": %s: Could not set %s as active slave; "
1152 "either %s is down or the link is down.\n",
1153 bond->dev->name, slave->dev->name,
1154 slave->dev->name);
1155 }
1156 goto out;
1157 }
1158 }
1159 }
1160
1161 /* if we got here, then we didn't match the name of any slave */
1162
1163 if (strlen(buf) == 0 || buf[0] == '\n') {
1164 printk(KERN_INFO DRV_NAME
1165 ": %s: Setting active slave to None.\n",
1166 bond->dev->name);
1167 bond->primary_slave = 0;
1168 bond_select_active_slave(bond);
1169 } else {
1170 printk(KERN_INFO DRV_NAME
1171 ": %s: Unable to set %.*s as active slave as it is not a slave.\n",
1172 bond->dev->name, (int)strlen(buf) - 1, buf);
1173 }
1174 }
1175out:
1176 write_unlock_bh(&bond->lock);
1177 return count;
1178
1179}
1180static CLASS_DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, bonding_show_active_slave, bonding_store_active_slave);
1181
1182
1183/*
1184 * Show link status of the bond interface.
1185 */
1186static ssize_t bonding_show_mii_status(struct class_device *cd, char *buf)
1187{
1188 struct slave *curr;
1189 struct bonding *bond = to_bond(cd);
1190
1191 read_lock(&bond->curr_slave_lock);
1192 curr = bond->curr_active_slave;
1193 read_unlock(&bond->curr_slave_lock);
1194
1195 return sprintf(buf, "%s\n", (curr) ? "up" : "down") + 1;
1196}
1197static CLASS_DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL);
1198
1199
1200/*
1201 * Show current 802.3ad aggregator ID.
1202 */
1203static ssize_t bonding_show_ad_aggregator(struct class_device *cd, char *buf)
1204{
1205 int count = 0;
1206 struct bonding *bond = to_bond(cd);
1207
1208 if (bond->params.mode == BOND_MODE_8023AD) {
1209 struct ad_info ad_info;
1210 count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.aggregator_id) + 1;
1211 }
1212 else
1213 count = sprintf(buf, "\n") + 1;
1214
1215 return count;
1216}
1217static CLASS_DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL);
1218
1219
1220/*
1221 * Show number of active 802.3ad ports.
1222 */
1223static ssize_t bonding_show_ad_num_ports(struct class_device *cd, char *buf)
1224{
1225 int count = 0;
1226 struct bonding *bond = to_bond(cd);
1227
1228 if (bond->params.mode == BOND_MODE_8023AD) {
1229 struct ad_info ad_info;
1230 count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0: ad_info.ports) + 1;
1231 }
1232 else
1233 count = sprintf(buf, "\n") + 1;
1234
1235 return count;
1236}
1237static CLASS_DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL);
1238
1239
1240/*
1241 * Show current 802.3ad actor key.
1242 */
1243static ssize_t bonding_show_ad_actor_key(struct class_device *cd, char *buf)
1244{
1245 int count = 0;
1246 struct bonding *bond = to_bond(cd);
1247
1248 if (bond->params.mode == BOND_MODE_8023AD) {
1249 struct ad_info ad_info;
1250 count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.actor_key) + 1;
1251 }
1252 else
1253 count = sprintf(buf, "\n") + 1;
1254
1255 return count;
1256}
1257static CLASS_DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL);
1258
1259
1260/*
1261 * Show current 802.3ad partner key.
1262 */
1263static ssize_t bonding_show_ad_partner_key(struct class_device *cd, char *buf)
1264{
1265 int count = 0;
1266 struct bonding *bond = to_bond(cd);
1267
1268 if (bond->params.mode == BOND_MODE_8023AD) {
1269 struct ad_info ad_info;
1270 count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.partner_key) + 1;
1271 }
1272 else
1273 count = sprintf(buf, "\n") + 1;
1274
1275 return count;
1276}
1277static CLASS_DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL);
1278
1279
1280/*
1281 * Show current 802.3ad partner mac.
1282 */
1283static ssize_t bonding_show_ad_partner_mac(struct class_device *cd, char *buf)
1284{
1285 int count = 0;
1286 struct bonding *bond = to_bond(cd);
1287
1288 if (bond->params.mode == BOND_MODE_8023AD) {
1289 struct ad_info ad_info;
1290 if (!bond_3ad_get_active_agg_info(bond, &ad_info)) {
1291 count = sprintf(buf,"%02x:%02x:%02x:%02x:%02x:%02x\n",
1292 ad_info.partner_system[0],
1293 ad_info.partner_system[1],
1294 ad_info.partner_system[2],
1295 ad_info.partner_system[3],
1296 ad_info.partner_system[4],
1297 ad_info.partner_system[5]) + 1;
1298 }
1299 }
1300 else
1301 count = sprintf(buf, "\n") + 1;
1302
1303 return count;
1304}
1305static CLASS_DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL);
1306
1307
1308
1309static struct attribute *per_bond_attrs[] = {
1310 &class_device_attr_slaves.attr,
1311 &class_device_attr_mode.attr,
1312 &class_device_attr_arp_interval.attr,
1313 &class_device_attr_arp_ip_target.attr,
1314 &class_device_attr_downdelay.attr,
1315 &class_device_attr_updelay.attr,
1316 &class_device_attr_lacp_rate.attr,
1317 &class_device_attr_xmit_hash_policy.attr,
1318 &class_device_attr_miimon.attr,
1319 &class_device_attr_primary.attr,
1320 &class_device_attr_use_carrier.attr,
1321 &class_device_attr_active_slave.attr,
1322 &class_device_attr_mii_status.attr,
1323 &class_device_attr_ad_aggregator.attr,
1324 &class_device_attr_ad_num_ports.attr,
1325 &class_device_attr_ad_actor_key.attr,
1326 &class_device_attr_ad_partner_key.attr,
1327 &class_device_attr_ad_partner_mac.attr,
1328 NULL,
1329};
1330
1331static struct attribute_group bonding_group = {
1332 .name = "bonding",
1333 .attrs = per_bond_attrs,
1334};
1335
1336/*
1337 * Initialize sysfs. This sets up the bonding_masters file in
1338 * /sys/class/net.
1339 */
1340int bond_create_sysfs(void)
1341{
1342 int ret = 0;
1343 struct bonding *firstbond;
1344
1345 init_rwsem(&bonding_rwsem);
1346
1347 /* get the netdev class pointer */
1348 firstbond = container_of(bond_dev_list.next, struct bonding, bond_list);
1349 if (!firstbond)
1350 return -ENODEV;
1351
1352 netdev_class = firstbond->dev->class_dev.class;
1353 if (!netdev_class)
1354 return -ENODEV;
1355
1356 ret = class_create_file(netdev_class, &class_attr_bonding_masters);
1357
1358 return ret;
1359
1360}
1361
1362/*
1363 * Remove /sys/class/net/bonding_masters.
1364 */
1365void bond_destroy_sysfs(void)
1366{
1367 if (netdev_class)
1368 class_remove_file(netdev_class, &class_attr_bonding_masters);
1369}
1370
1371/*
1372 * Initialize sysfs for each bond. This sets up and registers
1373 * the 'bondctl' directory for each individual bond under /sys/class/net.
1374 */
1375int bond_create_sysfs_entry(struct bonding *bond)
1376{
1377 struct net_device *dev = bond->dev;
1378 int err;
1379
1380 err = sysfs_create_group(&(dev->class_dev.kobj), &bonding_group);
1381 if (err) {
1382 printk(KERN_EMERG "eek! didn't create group!\n");
1383 }
1384
1385 if (expected_refcount < 1)
1386 expected_refcount = atomic_read(&bond->dev->class_dev.kobj.kref.refcount);
1387
1388 return err;
1389}
1390/*
1391 * Remove sysfs entries for each bond.
1392 */
1393void bond_destroy_sysfs_entry(struct bonding *bond)
1394{
1395 struct net_device *dev = bond->dev;
1396
1397 sysfs_remove_group(&(dev->class_dev.kobj), &bonding_group);
1398}
1399
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 863605aab204..903e60aa611e 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -37,6 +37,7 @@
37#include <linux/timer.h> 37#include <linux/timer.h>
38#include <linux/proc_fs.h> 38#include <linux/proc_fs.h>
39#include <linux/if_bonding.h> 39#include <linux/if_bonding.h>
40#include <linux/kobject.h>
40#include "bond_3ad.h" 41#include "bond_3ad.h"
41#include "bond_alb.h" 42#include "bond_alb.h"
42 43
@@ -262,6 +263,12 @@ struct vlan_entry *bond_next_vlan(struct bonding *bond, struct vlan_entry *curr)
262int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev); 263int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
263int bond_create(char *name, struct bond_params *params, struct bonding **newbond); 264int bond_create(char *name, struct bond_params *params, struct bonding **newbond);
264void bond_deinit(struct net_device *bond_dev); 265void bond_deinit(struct net_device *bond_dev);
266int bond_create_sysfs(void);
267void bond_destroy_sysfs(void);
268void bond_destroy_sysfs_entry(struct bonding *bond);
269int bond_create_sysfs_entry(struct bonding *bond);
270int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave);
271void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave);
265int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev); 272int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev);
266int bond_release(struct net_device *bond_dev, struct net_device *slave_dev); 273int bond_release(struct net_device *bond_dev, struct net_device *slave_dev);
267int bond_sethwaddr(struct net_device *bond_dev, struct net_device *slave_dev); 274int bond_sethwaddr(struct net_device *bond_dev, struct net_device *slave_dev);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-29 03:43:35 -0500