Commit | Line | Data |
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b76cdba9 MW |
1 | /* |
2 | * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
11 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
adf8d3ff | 15 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
b76cdba9 MW |
16 | * |
17 | * The full GNU General Public License is included in this distribution in the | |
18 | * file called LICENSE. | |
19 | * | |
b76cdba9 | 20 | */ |
a4aee5c8 JP |
21 | |
22 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
23 | ||
b76cdba9 MW |
24 | #include <linux/kernel.h> |
25 | #include <linux/module.h> | |
b76cdba9 | 26 | #include <linux/device.h> |
d43c36dc | 27 | #include <linux/sched.h> |
b76cdba9 MW |
28 | #include <linux/fs.h> |
29 | #include <linux/types.h> | |
30 | #include <linux/string.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/inetdevice.h> | |
33 | #include <linux/in.h> | |
34 | #include <linux/sysfs.h> | |
b76cdba9 MW |
35 | #include <linux/ctype.h> |
36 | #include <linux/inet.h> | |
37 | #include <linux/rtnetlink.h> | |
5c5129b5 | 38 | #include <linux/etherdevice.h> |
881d966b | 39 | #include <net/net_namespace.h> |
ec87fd3b EB |
40 | #include <net/netns/generic.h> |
41 | #include <linux/nsproxy.h> | |
b76cdba9 | 42 | |
b76cdba9 | 43 | #include "bonding.h" |
5a03cdb7 | 44 | |
3d632c3f | 45 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 46 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 47 | |
dc3e5d18 | 48 | /* "show" function for the bond_masters attribute. |
b76cdba9 MW |
49 | * The class parameter is ignored. |
50 | */ | |
28812fe1 AK |
51 | static ssize_t bonding_show_bonds(struct class *cls, |
52 | struct class_attribute *attr, | |
53 | char *buf) | |
b76cdba9 | 54 | { |
4c22400a EB |
55 | struct bond_net *bn = |
56 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
57 | int res = 0; |
58 | struct bonding *bond; | |
59 | ||
7e083840 | 60 | rtnl_lock(); |
b76cdba9 | 61 | |
ec87fd3b | 62 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
63 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
64 | /* not enough space for another interface name */ | |
65 | if ((PAGE_SIZE - res) > 10) | |
66 | res = PAGE_SIZE - 10; | |
b8843665 | 67 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
68 | break; |
69 | } | |
b8843665 | 70 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 71 | } |
1dcdcd69 WF |
72 | if (res) |
73 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
74 | |
75 | rtnl_unlock(); | |
b76cdba9 MW |
76 | return res; |
77 | } | |
78 | ||
4c22400a | 79 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
80 | { |
81 | struct bonding *bond; | |
82 | ||
ec87fd3b | 83 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
84 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
85 | return bond->dev; | |
86 | } | |
87 | return NULL; | |
88 | } | |
89 | ||
dc3e5d18 | 90 | /* "store" function for the bond_masters attribute. This is what |
b76cdba9 MW |
91 | * creates and deletes entire bonds. |
92 | * | |
93 | * The class parameter is ignored. | |
94 | * | |
95 | */ | |
3d632c3f | 96 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 97 | struct class_attribute *attr, |
3d632c3f | 98 | const char *buffer, size_t count) |
b76cdba9 | 99 | { |
4c22400a EB |
100 | struct bond_net *bn = |
101 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
102 | char command[IFNAMSIZ + 1] = {0, }; |
103 | char *ifname; | |
027ea041 | 104 | int rv, res = count; |
b76cdba9 | 105 | |
b76cdba9 MW |
106 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
107 | ifname = command + 1; | |
108 | if ((strlen(command) <= 1) || | |
109 | !dev_valid_name(ifname)) | |
110 | goto err_no_cmd; | |
111 | ||
112 | if (command[0] == '+') { | |
a4aee5c8 | 113 | pr_info("%s is being created...\n", ifname); |
4c22400a | 114 | rv = bond_create(bn->net, ifname); |
027ea041 | 115 | if (rv) { |
5f86cad1 | 116 | if (rv == -EEXIST) |
90194264 | 117 | pr_info("%s already exists\n", ifname); |
5f86cad1 | 118 | else |
90194264 | 119 | pr_info("%s creation failed\n", ifname); |
027ea041 | 120 | res = rv; |
b76cdba9 | 121 | } |
373500db SH |
122 | } else if (command[0] == '-') { |
123 | struct net_device *bond_dev; | |
b76cdba9 | 124 | |
027ea041 | 125 | rtnl_lock(); |
4c22400a | 126 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 127 | if (bond_dev) { |
a4aee5c8 | 128 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
129 | unregister_netdevice(bond_dev); |
130 | } else { | |
a4aee5c8 | 131 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
132 | res = -ENODEV; |
133 | } | |
134 | rtnl_unlock(); | |
135 | } else | |
136 | goto err_no_cmd; | |
027ea041 | 137 | |
373500db SH |
138 | /* Always return either count or an error. If you return 0, you'll |
139 | * get called forever, which is bad. | |
140 | */ | |
141 | return res; | |
b76cdba9 MW |
142 | |
143 | err_no_cmd: | |
90194264 | 144 | pr_err("no command found in bonding_masters - use +ifname or -ifname\n"); |
c4ebc66a | 145 | return -EPERM; |
b76cdba9 | 146 | } |
373500db | 147 | |
b76cdba9 | 148 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
149 | static const struct class_attribute class_attr_bonding_masters = { |
150 | .attr = { | |
151 | .name = "bonding_masters", | |
152 | .mode = S_IWUSR | S_IRUGO, | |
153 | }, | |
154 | .show = bonding_show_bonds, | |
155 | .store = bonding_store_bonds, | |
4c22400a | 156 | }; |
b76cdba9 | 157 | |
dc3e5d18 NA |
158 | /* Generic "store" method for bonding sysfs option setting */ |
159 | static ssize_t bonding_sysfs_store_option(struct device *d, | |
160 | struct device_attribute *attr, | |
161 | const char *buffer, size_t count) | |
162 | { | |
163 | struct bonding *bond = to_bond(d); | |
164 | const struct bond_option *opt; | |
165 | int ret; | |
166 | ||
167 | opt = bond_opt_get_by_name(attr->attr.name); | |
168 | if (WARN_ON(!opt)) | |
169 | return -ENOENT; | |
170 | ret = bond_opt_tryset_rtnl(bond, opt->id, (char *)buffer); | |
171 | if (!ret) | |
172 | ret = count; | |
173 | ||
174 | return ret; | |
175 | } | |
176 | ||
177 | /* Show the slaves in the current bond. */ | |
43cb76d9 GKH |
178 | static ssize_t bonding_show_slaves(struct device *d, |
179 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 180 | { |
43cb76d9 | 181 | struct bonding *bond = to_bond(d); |
9caff1e7 | 182 | struct list_head *iter; |
dec1e90e | 183 | struct slave *slave; |
184 | int res = 0; | |
b76cdba9 | 185 | |
4d1ae5fb | 186 | if (!rtnl_trylock()) |
187 | return restart_syscall(); | |
188 | ||
9caff1e7 | 189 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
190 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
191 | /* not enough space for another interface name */ | |
192 | if ((PAGE_SIZE - res) > 10) | |
193 | res = PAGE_SIZE - 10; | |
7bd46508 | 194 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
195 | break; |
196 | } | |
197 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
198 | } | |
4d1ae5fb | 199 | |
200 | rtnl_unlock(); | |
201 | ||
1dcdcd69 WF |
202 | if (res) |
203 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 204 | |
b76cdba9 MW |
205 | return res; |
206 | } | |
3d632c3f | 207 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
dc3e5d18 | 208 | bonding_sysfs_store_option); |
b76cdba9 | 209 | |
dc3e5d18 | 210 | /* Show the bonding mode. */ |
43cb76d9 GKH |
211 | static ssize_t bonding_show_mode(struct device *d, |
212 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 213 | { |
43cb76d9 | 214 | struct bonding *bond = to_bond(d); |
f3253339 | 215 | const struct bond_opt_value *val; |
b76cdba9 | 216 | |
01844098 | 217 | val = bond_opt_get_val(BOND_OPT_MODE, BOND_MODE(bond)); |
2b3798d5 | 218 | |
01844098 | 219 | return sprintf(buf, "%s %d\n", val->string, BOND_MODE(bond)); |
b76cdba9 | 220 | } |
3d632c3f | 221 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
dc3e5d18 | 222 | bonding_show_mode, bonding_sysfs_store_option); |
b76cdba9 | 223 | |
dc3e5d18 | 224 | /* Show the bonding transmit hash method. */ |
43cb76d9 GKH |
225 | static ssize_t bonding_show_xmit_hash(struct device *d, |
226 | struct device_attribute *attr, | |
227 | char *buf) | |
b76cdba9 | 228 | { |
43cb76d9 | 229 | struct bonding *bond = to_bond(d); |
f3253339 | 230 | const struct bond_opt_value *val; |
a4b32ce7 NA |
231 | |
232 | val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy); | |
b76cdba9 | 233 | |
a4b32ce7 | 234 | return sprintf(buf, "%s %d\n", val->string, bond->params.xmit_policy); |
b76cdba9 | 235 | } |
3d632c3f | 236 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
dc3e5d18 | 237 | bonding_show_xmit_hash, bonding_sysfs_store_option); |
b76cdba9 | 238 | |
dc3e5d18 | 239 | /* Show arp_validate. */ |
43cb76d9 GKH |
240 | static ssize_t bonding_show_arp_validate(struct device *d, |
241 | struct device_attribute *attr, | |
242 | char *buf) | |
f5b2b966 | 243 | { |
43cb76d9 | 244 | struct bonding *bond = to_bond(d); |
f3253339 | 245 | const struct bond_opt_value *val; |
16228881 NA |
246 | |
247 | val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE, | |
248 | bond->params.arp_validate); | |
f5b2b966 | 249 | |
16228881 | 250 | return sprintf(buf, "%s %d\n", val->string, bond->params.arp_validate); |
f5b2b966 | 251 | } |
3d632c3f | 252 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
dc3e5d18 NA |
253 | bonding_sysfs_store_option); |
254 | ||
255 | /* Show arp_all_targets. */ | |
8599b52e VF |
256 | static ssize_t bonding_show_arp_all_targets(struct device *d, |
257 | struct device_attribute *attr, | |
258 | char *buf) | |
259 | { | |
260 | struct bonding *bond = to_bond(d); | |
f3253339 | 261 | const struct bond_opt_value *val; |
8599b52e | 262 | |
edf36b24 NA |
263 | val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS, |
264 | bond->params.arp_all_targets); | |
265 | return sprintf(buf, "%s %d\n", | |
266 | val->string, bond->params.arp_all_targets); | |
8599b52e | 267 | } |
8599b52e | 268 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, |
dc3e5d18 | 269 | bonding_show_arp_all_targets, bonding_sysfs_store_option); |
f5b2b966 | 270 | |
dc3e5d18 | 271 | /* Show fail_over_mac. */ |
3d632c3f SH |
272 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
273 | struct device_attribute *attr, | |
274 | char *buf) | |
dd957c57 JV |
275 | { |
276 | struct bonding *bond = to_bond(d); | |
f3253339 | 277 | const struct bond_opt_value *val; |
dd957c57 | 278 | |
1df6b6aa NA |
279 | val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, |
280 | bond->params.fail_over_mac); | |
281 | ||
282 | return sprintf(buf, "%s %d\n", val->string, bond->params.fail_over_mac); | |
dd957c57 | 283 | } |
3d632c3f | 284 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
dc3e5d18 | 285 | bonding_show_fail_over_mac, bonding_sysfs_store_option); |
dd957c57 | 286 | |
dc3e5d18 | 287 | /* Show the arp timer interval. */ |
43cb76d9 GKH |
288 | static ssize_t bonding_show_arp_interval(struct device *d, |
289 | struct device_attribute *attr, | |
290 | char *buf) | |
b76cdba9 | 291 | { |
43cb76d9 | 292 | struct bonding *bond = to_bond(d); |
b76cdba9 | 293 | |
7bd46508 | 294 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 | 295 | } |
3d632c3f | 296 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
dc3e5d18 | 297 | bonding_show_arp_interval, bonding_sysfs_store_option); |
b76cdba9 | 298 | |
dc3e5d18 | 299 | /* Show the arp targets. */ |
43cb76d9 GKH |
300 | static ssize_t bonding_show_arp_targets(struct device *d, |
301 | struct device_attribute *attr, | |
302 | char *buf) | |
b76cdba9 | 303 | { |
43cb76d9 | 304 | struct bonding *bond = to_bond(d); |
4fb0ef58 | 305 | int i, res = 0; |
b76cdba9 MW |
306 | |
307 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
308 | if (bond->params.arp_targets[i]) | |
63779436 HH |
309 | res += sprintf(buf + res, "%pI4 ", |
310 | &bond->params.arp_targets[i]); | |
b76cdba9 | 311 | } |
1dcdcd69 WF |
312 | if (res) |
313 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4fb0ef58 | 314 | |
b76cdba9 MW |
315 | return res; |
316 | } | |
dc3e5d18 NA |
317 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR, |
318 | bonding_show_arp_targets, bonding_sysfs_store_option); | |
b76cdba9 | 319 | |
dc3e5d18 | 320 | /* Show the up and down delays. */ |
43cb76d9 GKH |
321 | static ssize_t bonding_show_downdelay(struct device *d, |
322 | struct device_attribute *attr, | |
323 | char *buf) | |
b76cdba9 | 324 | { |
43cb76d9 | 325 | struct bonding *bond = to_bond(d); |
b76cdba9 | 326 | |
7bd46508 | 327 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 | 328 | } |
3d632c3f | 329 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
dc3e5d18 | 330 | bonding_show_downdelay, bonding_sysfs_store_option); |
b76cdba9 | 331 | |
43cb76d9 GKH |
332 | static ssize_t bonding_show_updelay(struct device *d, |
333 | struct device_attribute *attr, | |
334 | char *buf) | |
b76cdba9 | 335 | { |
43cb76d9 | 336 | struct bonding *bond = to_bond(d); |
b76cdba9 | 337 | |
7bd46508 | 338 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
339 | |
340 | } | |
3d632c3f | 341 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
dc3e5d18 | 342 | bonding_show_updelay, bonding_sysfs_store_option); |
b76cdba9 | 343 | |
dc3e5d18 | 344 | /* Show the LACP interval. */ |
43cb76d9 GKH |
345 | static ssize_t bonding_show_lacp(struct device *d, |
346 | struct device_attribute *attr, | |
347 | char *buf) | |
b76cdba9 | 348 | { |
43cb76d9 | 349 | struct bonding *bond = to_bond(d); |
f3253339 | 350 | const struct bond_opt_value *val; |
b76cdba9 | 351 | |
d3131de7 NA |
352 | val = bond_opt_get_val(BOND_OPT_LACP_RATE, bond->params.lacp_fast); |
353 | ||
354 | return sprintf(buf, "%s %d\n", val->string, bond->params.lacp_fast); | |
b76cdba9 | 355 | } |
3d632c3f | 356 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
dc3e5d18 | 357 | bonding_show_lacp, bonding_sysfs_store_option); |
b76cdba9 | 358 | |
655f8919 | 359 | static ssize_t bonding_show_min_links(struct device *d, |
360 | struct device_attribute *attr, | |
361 | char *buf) | |
362 | { | |
363 | struct bonding *bond = to_bond(d); | |
364 | ||
014f1b20 | 365 | return sprintf(buf, "%u\n", bond->params.min_links); |
655f8919 | 366 | } |
655f8919 | 367 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, |
dc3e5d18 | 368 | bonding_show_min_links, bonding_sysfs_store_option); |
655f8919 | 369 | |
fd989c83 JV |
370 | static ssize_t bonding_show_ad_select(struct device *d, |
371 | struct device_attribute *attr, | |
372 | char *buf) | |
373 | { | |
374 | struct bonding *bond = to_bond(d); | |
f3253339 | 375 | const struct bond_opt_value *val; |
fd989c83 | 376 | |
9e5f5eeb NA |
377 | val = bond_opt_get_val(BOND_OPT_AD_SELECT, bond->params.ad_select); |
378 | ||
379 | return sprintf(buf, "%s %d\n", val->string, bond->params.ad_select); | |
fd989c83 | 380 | } |
3d632c3f | 381 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
dc3e5d18 | 382 | bonding_show_ad_select, bonding_sysfs_store_option); |
fd989c83 | 383 | |
dc3e5d18 | 384 | /* Show and set the number of peer notifications to send after a failover event. */ |
ad246c99 BH |
385 | static ssize_t bonding_show_num_peer_notif(struct device *d, |
386 | struct device_attribute *attr, | |
387 | char *buf) | |
388 | { | |
389 | struct bonding *bond = to_bond(d); | |
390 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
391 | } | |
392 | ||
393 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
394 | struct device_attribute *attr, | |
395 | const char *buf, size_t count) | |
396 | { | |
397 | struct bonding *bond = to_bond(d); | |
2c9839c1 | 398 | int ret; |
399 | ||
ef56becb | 400 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_NUM_PEER_NOTIF, (char *)buf); |
2c9839c1 | 401 | if (!ret) |
402 | ret = count; | |
403 | ||
2c9839c1 | 404 | return ret; |
ad246c99 BH |
405 | } |
406 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
407 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
408 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
409 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
410 | ||
dc3e5d18 | 411 | /* Show the MII monitor interval. */ |
43cb76d9 GKH |
412 | static ssize_t bonding_show_miimon(struct device *d, |
413 | struct device_attribute *attr, | |
414 | char *buf) | |
b76cdba9 | 415 | { |
43cb76d9 | 416 | struct bonding *bond = to_bond(d); |
b76cdba9 | 417 | |
7bd46508 | 418 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 | 419 | } |
3d632c3f | 420 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
dc3e5d18 | 421 | bonding_show_miimon, bonding_sysfs_store_option); |
b76cdba9 | 422 | |
dc3e5d18 | 423 | /* Show the primary slave. */ |
43cb76d9 GKH |
424 | static ssize_t bonding_show_primary(struct device *d, |
425 | struct device_attribute *attr, | |
426 | char *buf) | |
b76cdba9 MW |
427 | { |
428 | int count = 0; | |
43cb76d9 | 429 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
430 | |
431 | if (bond->primary_slave) | |
7bd46508 | 432 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
433 | |
434 | return count; | |
435 | } | |
3d632c3f | 436 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
dc3e5d18 | 437 | bonding_show_primary, bonding_sysfs_store_option); |
b76cdba9 | 438 | |
dc3e5d18 | 439 | /* Show the primary_reselect flag. */ |
a549952a JP |
440 | static ssize_t bonding_show_primary_reselect(struct device *d, |
441 | struct device_attribute *attr, | |
442 | char *buf) | |
443 | { | |
444 | struct bonding *bond = to_bond(d); | |
f3253339 | 445 | const struct bond_opt_value *val; |
388d3a6d NA |
446 | |
447 | val = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT, | |
448 | bond->params.primary_reselect); | |
a549952a JP |
449 | |
450 | return sprintf(buf, "%s %d\n", | |
388d3a6d | 451 | val->string, bond->params.primary_reselect); |
a549952a | 452 | } |
a549952a | 453 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, |
dc3e5d18 | 454 | bonding_show_primary_reselect, bonding_sysfs_store_option); |
a549952a | 455 | |
dc3e5d18 | 456 | /* Show the use_carrier flag. */ |
43cb76d9 GKH |
457 | static ssize_t bonding_show_carrier(struct device *d, |
458 | struct device_attribute *attr, | |
459 | char *buf) | |
b76cdba9 | 460 | { |
43cb76d9 | 461 | struct bonding *bond = to_bond(d); |
b76cdba9 | 462 | |
7bd46508 | 463 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 | 464 | } |
3d632c3f | 465 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
dc3e5d18 | 466 | bonding_show_carrier, bonding_sysfs_store_option); |
b76cdba9 MW |
467 | |
468 | ||
dc3e5d18 | 469 | /* Show currently active_slave. */ |
43cb76d9 GKH |
470 | static ssize_t bonding_show_active_slave(struct device *d, |
471 | struct device_attribute *attr, | |
472 | char *buf) | |
b76cdba9 | 473 | { |
43cb76d9 | 474 | struct bonding *bond = to_bond(d); |
752d48b5 | 475 | struct net_device *slave_dev; |
16cd0160 | 476 | int count = 0; |
b76cdba9 | 477 | |
278b2083 | 478 | rcu_read_lock(); |
752d48b5 JP |
479 | slave_dev = bond_option_active_slave_get_rcu(bond); |
480 | if (slave_dev) | |
481 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 482 | rcu_read_unlock(); |
483 | ||
b76cdba9 MW |
484 | return count; |
485 | } | |
3d632c3f | 486 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
dc3e5d18 | 487 | bonding_show_active_slave, bonding_sysfs_store_option); |
b76cdba9 | 488 | |
dc3e5d18 | 489 | /* Show link status of the bond interface. */ |
43cb76d9 GKH |
490 | static ssize_t bonding_show_mii_status(struct device *d, |
491 | struct device_attribute *attr, | |
492 | char *buf) | |
b76cdba9 | 493 | { |
43cb76d9 | 494 | struct bonding *bond = to_bond(d); |
b76cdba9 | 495 | |
278b2083 | 496 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 497 | } |
43cb76d9 | 498 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 499 | |
dc3e5d18 | 500 | /* Show current 802.3ad aggregator ID. */ |
43cb76d9 GKH |
501 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
502 | struct device_attribute *attr, | |
503 | char *buf) | |
b76cdba9 MW |
504 | { |
505 | int count = 0; | |
43cb76d9 | 506 | struct bonding *bond = to_bond(d); |
b76cdba9 | 507 | |
01844098 | 508 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
b76cdba9 | 509 | struct ad_info ad_info; |
3d632c3f | 510 | count = sprintf(buf, "%d\n", |
318debd8 | 511 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 512 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 513 | } |
b76cdba9 MW |
514 | |
515 | return count; | |
516 | } | |
43cb76d9 | 517 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
518 | |
519 | ||
dc3e5d18 | 520 | /* Show number of active 802.3ad ports. */ |
43cb76d9 GKH |
521 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
522 | struct device_attribute *attr, | |
523 | char *buf) | |
b76cdba9 MW |
524 | { |
525 | int count = 0; | |
43cb76d9 | 526 | struct bonding *bond = to_bond(d); |
b76cdba9 | 527 | |
01844098 | 528 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
b76cdba9 | 529 | struct ad_info ad_info; |
3d632c3f | 530 | count = sprintf(buf, "%d\n", |
318debd8 | 531 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 532 | ? 0 : ad_info.ports); |
b76cdba9 | 533 | } |
b76cdba9 MW |
534 | |
535 | return count; | |
536 | } | |
43cb76d9 | 537 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
538 | |
539 | ||
dc3e5d18 | 540 | /* Show current 802.3ad actor key. */ |
43cb76d9 GKH |
541 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
542 | struct device_attribute *attr, | |
543 | char *buf) | |
b76cdba9 MW |
544 | { |
545 | int count = 0; | |
43cb76d9 | 546 | struct bonding *bond = to_bond(d); |
b76cdba9 | 547 | |
01844098 | 548 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
b76cdba9 | 549 | struct ad_info ad_info; |
3d632c3f | 550 | count = sprintf(buf, "%d\n", |
318debd8 | 551 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 552 | ? 0 : ad_info.actor_key); |
b76cdba9 | 553 | } |
b76cdba9 MW |
554 | |
555 | return count; | |
556 | } | |
43cb76d9 | 557 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
558 | |
559 | ||
dc3e5d18 | 560 | /* Show current 802.3ad partner key. */ |
43cb76d9 GKH |
561 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
562 | struct device_attribute *attr, | |
563 | char *buf) | |
b76cdba9 MW |
564 | { |
565 | int count = 0; | |
43cb76d9 | 566 | struct bonding *bond = to_bond(d); |
b76cdba9 | 567 | |
01844098 | 568 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
b76cdba9 | 569 | struct ad_info ad_info; |
3d632c3f | 570 | count = sprintf(buf, "%d\n", |
318debd8 | 571 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 572 | ? 0 : ad_info.partner_key); |
b76cdba9 | 573 | } |
b76cdba9 MW |
574 | |
575 | return count; | |
576 | } | |
43cb76d9 | 577 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
578 | |
579 | ||
dc3e5d18 | 580 | /* Show current 802.3ad partner mac. */ |
43cb76d9 GKH |
581 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
582 | struct device_attribute *attr, | |
583 | char *buf) | |
b76cdba9 MW |
584 | { |
585 | int count = 0; | |
43cb76d9 | 586 | struct bonding *bond = to_bond(d); |
b76cdba9 | 587 | |
01844098 | 588 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
b76cdba9 | 589 | struct ad_info ad_info; |
3d632c3f | 590 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 591 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 592 | } |
b76cdba9 MW |
593 | |
594 | return count; | |
595 | } | |
43cb76d9 | 596 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 597 | |
dc3e5d18 | 598 | /* Show the queue_ids of the slaves in the current bond. */ |
bb1d9123 AG |
599 | static ssize_t bonding_show_queue_id(struct device *d, |
600 | struct device_attribute *attr, | |
601 | char *buf) | |
602 | { | |
bb1d9123 | 603 | struct bonding *bond = to_bond(d); |
9caff1e7 | 604 | struct list_head *iter; |
dec1e90e | 605 | struct slave *slave; |
606 | int res = 0; | |
bb1d9123 AG |
607 | |
608 | if (!rtnl_trylock()) | |
609 | return restart_syscall(); | |
610 | ||
9caff1e7 | 611 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
612 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
613 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
614 | if ((PAGE_SIZE - res) > 10) |
615 | res = PAGE_SIZE - 10; | |
616 | res += sprintf(buf + res, "++more++ "); | |
617 | break; | |
618 | } | |
619 | res += sprintf(buf + res, "%s:%d ", | |
620 | slave->dev->name, slave->queue_id); | |
621 | } | |
bb1d9123 AG |
622 | if (res) |
623 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 624 | |
bb1d9123 | 625 | rtnl_unlock(); |
dec1e90e | 626 | |
bb1d9123 AG |
627 | return res; |
628 | } | |
bb1d9123 | 629 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, |
dc3e5d18 | 630 | bonding_sysfs_store_option); |
bb1d9123 AG |
631 | |
632 | ||
dc3e5d18 | 633 | /* Show the all_slaves_active flag. */ |
ebd8e497 AG |
634 | static ssize_t bonding_show_slaves_active(struct device *d, |
635 | struct device_attribute *attr, | |
636 | char *buf) | |
637 | { | |
638 | struct bonding *bond = to_bond(d); | |
639 | ||
640 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
641 | } | |
ebd8e497 | 642 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, |
dc3e5d18 | 643 | bonding_show_slaves_active, bonding_sysfs_store_option); |
b76cdba9 | 644 | |
dc3e5d18 | 645 | /* Show the number of IGMP membership reports to send on link failure */ |
c2952c31 | 646 | static ssize_t bonding_show_resend_igmp(struct device *d, |
94265cf5 FL |
647 | struct device_attribute *attr, |
648 | char *buf) | |
c2952c31 FL |
649 | { |
650 | struct bonding *bond = to_bond(d); | |
651 | ||
652 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
653 | } | |
c2952c31 | 654 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, |
dc3e5d18 | 655 | bonding_show_resend_igmp, bonding_sysfs_store_option); |
c2952c31 | 656 | |
7eacd038 NH |
657 | |
658 | static ssize_t bonding_show_lp_interval(struct device *d, | |
659 | struct device_attribute *attr, | |
660 | char *buf) | |
661 | { | |
662 | struct bonding *bond = to_bond(d); | |
8d836d09 | 663 | |
dc3e5d18 | 664 | return sprintf(buf, "%d\n", bond->params.lp_interval); |
7eacd038 | 665 | } |
7eacd038 | 666 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, |
dc3e5d18 | 667 | bonding_show_lp_interval, bonding_sysfs_store_option); |
7eacd038 | 668 | |
e9f0fb88 MB |
669 | static ssize_t bonding_show_tlb_dynamic_lb(struct device *d, |
670 | struct device_attribute *attr, | |
671 | char *buf) | |
672 | { | |
673 | struct bonding *bond = to_bond(d); | |
674 | return sprintf(buf, "%d\n", bond->params.tlb_dynamic_lb); | |
675 | } | |
e9f0fb88 | 676 | static DEVICE_ATTR(tlb_dynamic_lb, S_IRUGO | S_IWUSR, |
dc3e5d18 | 677 | bonding_show_tlb_dynamic_lb, bonding_sysfs_store_option); |
e9f0fb88 | 678 | |
73958329 NA |
679 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
680 | struct device_attribute *attr, | |
681 | char *buf) | |
682 | { | |
683 | struct bonding *bond = to_bond(d); | |
a752a8b9 | 684 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
c13ab3ff | 685 | |
dc3e5d18 | 686 | return sprintf(buf, "%u\n", packets_per_slave); |
73958329 | 687 | } |
73958329 | 688 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, |
dc3e5d18 | 689 | bonding_show_packets_per_slave, bonding_sysfs_store_option); |
73958329 | 690 | |
b76cdba9 | 691 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
692 | &dev_attr_slaves.attr, |
693 | &dev_attr_mode.attr, | |
dd957c57 | 694 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 695 | &dev_attr_arp_validate.attr, |
8599b52e | 696 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
697 | &dev_attr_arp_interval.attr, |
698 | &dev_attr_arp_ip_target.attr, | |
699 | &dev_attr_downdelay.attr, | |
700 | &dev_attr_updelay.attr, | |
701 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 702 | &dev_attr_ad_select.attr, |
43cb76d9 | 703 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
704 | &dev_attr_num_grat_arp.attr, |
705 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
706 | &dev_attr_miimon.attr, |
707 | &dev_attr_primary.attr, | |
a549952a | 708 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
709 | &dev_attr_use_carrier.attr, |
710 | &dev_attr_active_slave.attr, | |
711 | &dev_attr_mii_status.attr, | |
712 | &dev_attr_ad_aggregator.attr, | |
713 | &dev_attr_ad_num_ports.attr, | |
714 | &dev_attr_ad_actor_key.attr, | |
715 | &dev_attr_ad_partner_key.attr, | |
716 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 717 | &dev_attr_queue_id.attr, |
ebd8e497 | 718 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 719 | &dev_attr_resend_igmp.attr, |
655f8919 | 720 | &dev_attr_min_links.attr, |
7eacd038 | 721 | &dev_attr_lp_interval.attr, |
73958329 | 722 | &dev_attr_packets_per_slave.attr, |
e9f0fb88 | 723 | &dev_attr_tlb_dynamic_lb.attr, |
b76cdba9 MW |
724 | NULL, |
725 | }; | |
726 | ||
727 | static struct attribute_group bonding_group = { | |
728 | .name = "bonding", | |
729 | .attrs = per_bond_attrs, | |
730 | }; | |
731 | ||
dc3e5d18 | 732 | /* Initialize sysfs. This sets up the bonding_masters file in |
b76cdba9 MW |
733 | * /sys/class/net. |
734 | */ | |
4c22400a | 735 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 736 | { |
b8a9787e | 737 | int ret; |
b76cdba9 | 738 | |
4c22400a | 739 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 740 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 741 | |
58292cbe TH |
742 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
743 | bn->net); | |
dc3e5d18 | 744 | /* Permit multiple loads of the module by ignoring failures to |
877cbd36 JV |
745 | * create the bonding_masters sysfs file. Bonding devices |
746 | * created by second or subsequent loads of the module will | |
747 | * not be listed in, or controllable by, bonding_masters, but | |
748 | * will have the usual "bonding" sysfs directory. | |
749 | * | |
750 | * This is done to preserve backwards compatibility for | |
751 | * initscripts/sysconfig, which load bonding multiple times to | |
752 | * configure multiple bonding devices. | |
753 | */ | |
754 | if (ret == -EEXIST) { | |
38d2f38b | 755 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 756 | if (__dev_get_by_name(bn->net, |
38d2f38b | 757 | class_attr_bonding_masters.attr.name)) |
90194264 | 758 | pr_err("network device named %s already exists in sysfs\n", |
38d2f38b | 759 | class_attr_bonding_masters.attr.name); |
130aa61a | 760 | ret = 0; |
877cbd36 | 761 | } |
b76cdba9 MW |
762 | |
763 | return ret; | |
764 | ||
765 | } | |
766 | ||
dc3e5d18 | 767 | /* Remove /sys/class/net/bonding_masters. */ |
4c22400a | 768 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 769 | { |
58292cbe | 770 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
771 | } |
772 | ||
dc3e5d18 | 773 | /* Initialize sysfs for each bond. This sets up and registers |
b76cdba9 MW |
774 | * the 'bondctl' directory for each individual bond under /sys/class/net. |
775 | */ | |
6151b3d4 | 776 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 777 | { |
6151b3d4 | 778 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
779 | } |
780 |