Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 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 | * |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 22 | */ |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 23 | #include <linux/kernel.h> |
| 24 | #include <linux/module.h> |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 25 | #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 Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 34 | #include <linux/ctype.h> |
| 35 | #include <linux/inet.h> |
| 36 | #include <linux/rtnetlink.h> |
Eric W. Biederman | 881d966 | 2007-09-17 11:56:21 -0700 | [diff] [blame] | 37 | #include <net/net_namespace.h> |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 38 | |
| 39 | /* #define BONDING_DEBUG 1 */ |
| 40 | #include "bonding.h" |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 41 | #define to_dev(obj) container_of(obj,struct device,kobj) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 42 | #define to_bond(cd) ((struct bonding *)(to_net_dev(cd)->priv)) |
| 43 | |
| 44 | /*---------------------------- Declarations -------------------------------*/ |
| 45 | |
| 46 | |
| 47 | extern struct list_head bond_dev_list; |
| 48 | extern struct bond_params bonding_defaults; |
| 49 | extern struct bond_parm_tbl bond_mode_tbl[]; |
| 50 | extern struct bond_parm_tbl bond_lacp_tbl[]; |
| 51 | extern struct bond_parm_tbl xmit_hashtype_tbl[]; |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 52 | extern struct bond_parm_tbl arp_validate_tbl[]; |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 53 | |
| 54 | static int expected_refcount = -1; |
| 55 | static struct class *netdev_class; |
| 56 | /*--------------------------- Data Structures -----------------------------*/ |
| 57 | |
| 58 | /* Bonding sysfs lock. Why can't we just use the subsytem lock? |
| 59 | * Because kobject_register tries to acquire the subsystem lock. If |
| 60 | * we already hold the lock (which we would if the user was creating |
| 61 | * a new bond through the sysfs interface), we deadlock. |
| 62 | * This lock is only needed when deleting a bond - we need to make sure |
| 63 | * that we don't collide with an ongoing ioctl. |
| 64 | */ |
| 65 | |
| 66 | struct rw_semaphore bonding_rwsem; |
| 67 | |
| 68 | |
| 69 | |
| 70 | |
| 71 | /*------------------------------ Functions --------------------------------*/ |
| 72 | |
| 73 | /* |
| 74 | * "show" function for the bond_masters attribute. |
| 75 | * The class parameter is ignored. |
| 76 | */ |
| 77 | static ssize_t bonding_show_bonds(struct class *cls, char *buffer) |
| 78 | { |
| 79 | int res = 0; |
| 80 | struct bonding *bond; |
| 81 | |
| 82 | down_read(&(bonding_rwsem)); |
| 83 | |
| 84 | list_for_each_entry(bond, &bond_dev_list, bond_list) { |
| 85 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
| 86 | /* not enough space for another interface name */ |
| 87 | if ((PAGE_SIZE - res) > 10) |
| 88 | res = PAGE_SIZE - 10; |
| 89 | res += sprintf(buffer + res, "++more++"); |
| 90 | break; |
| 91 | } |
| 92 | res += sprintf(buffer + res, "%s ", |
| 93 | bond->dev->name); |
| 94 | } |
| 95 | res += sprintf(buffer + res, "\n"); |
| 96 | res++; |
| 97 | 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 | |
| 109 | static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t count) |
| 110 | { |
| 111 | char command[IFNAMSIZ + 1] = {0, }; |
| 112 | char *ifname; |
| 113 | int res = count; |
| 114 | struct bonding *bond; |
| 115 | struct bonding *nxt; |
| 116 | |
| 117 | down_write(&(bonding_rwsem)); |
| 118 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
| 119 | ifname = command + 1; |
| 120 | if ((strlen(command) <= 1) || |
| 121 | !dev_valid_name(ifname)) |
| 122 | goto err_no_cmd; |
| 123 | |
| 124 | if (command[0] == '+') { |
| 125 | |
| 126 | /* Check to see if the bond already exists. */ |
| 127 | list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list) |
| 128 | if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) { |
| 129 | printk(KERN_ERR DRV_NAME |
| 130 | ": cannot add bond %s; it already exists\n", |
| 131 | ifname); |
| 132 | res = -EPERM; |
| 133 | goto out; |
| 134 | } |
| 135 | |
| 136 | printk(KERN_INFO DRV_NAME |
| 137 | ": %s is being created...\n", ifname); |
| 138 | if (bond_create(ifname, &bonding_defaults, &bond)) { |
| 139 | printk(KERN_INFO DRV_NAME |
| 140 | ": %s interface already exists. Bond creation failed.\n", |
| 141 | ifname); |
| 142 | res = -EPERM; |
| 143 | } |
| 144 | goto out; |
| 145 | } |
| 146 | |
| 147 | if (command[0] == '-') { |
| 148 | list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list) |
| 149 | if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) { |
| 150 | rtnl_lock(); |
| 151 | /* check the ref count on the bond's kobject. |
| 152 | * If it's > expected, then there's a file open, |
| 153 | * and we have to fail. |
| 154 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 155 | if (atomic_read(&bond->dev->dev.kobj.kref.refcount) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 156 | > expected_refcount){ |
| 157 | rtnl_unlock(); |
| 158 | printk(KERN_INFO DRV_NAME |
| 159 | ": Unable remove bond %s due to open references.\n", |
| 160 | ifname); |
| 161 | res = -EPERM; |
| 162 | goto out; |
| 163 | } |
| 164 | printk(KERN_INFO DRV_NAME |
| 165 | ": %s is being deleted...\n", |
| 166 | bond->dev->name); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 167 | bond_deinit(bond->dev); |
| 168 | bond_destroy_sysfs_entry(bond); |
Jay Vosburgh | 3201e65 | 2007-06-19 11:12:12 -0700 | [diff] [blame] | 169 | unregister_netdevice(bond->dev); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 170 | rtnl_unlock(); |
| 171 | goto out; |
| 172 | } |
| 173 | |
| 174 | printk(KERN_ERR DRV_NAME |
| 175 | ": unable to delete non-existent bond %s\n", ifname); |
| 176 | res = -ENODEV; |
| 177 | goto out; |
| 178 | } |
| 179 | |
| 180 | err_no_cmd: |
| 181 | printk(KERN_ERR DRV_NAME |
| 182 | ": no command found in bonding_masters. Use +ifname or -ifname.\n"); |
| 183 | res = -EPERM; |
| 184 | |
| 185 | /* Always return either count or an error. If you return 0, you'll |
| 186 | * get called forever, which is bad. |
| 187 | */ |
| 188 | out: |
| 189 | up_write(&(bonding_rwsem)); |
| 190 | return res; |
| 191 | } |
| 192 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
| 193 | static CLASS_ATTR(bonding_masters, S_IWUSR | S_IRUGO, |
| 194 | bonding_show_bonds, bonding_store_bonds); |
| 195 | |
| 196 | int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave) |
| 197 | { |
| 198 | char linkname[IFNAMSIZ+7]; |
| 199 | int ret = 0; |
| 200 | |
| 201 | /* first, create a link from the slave back to the master */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 202 | ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj), |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 203 | "master"); |
| 204 | if (ret) |
| 205 | return ret; |
| 206 | /* next, create a link from the master to the slave */ |
| 207 | sprintf(linkname,"slave_%s",slave->name); |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 208 | ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj), |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 209 | linkname); |
| 210 | return ret; |
| 211 | |
| 212 | } |
| 213 | |
| 214 | void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave) |
| 215 | { |
| 216 | char linkname[IFNAMSIZ+7]; |
| 217 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 218 | sysfs_remove_link(&(slave->dev.kobj), "master"); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 219 | sprintf(linkname,"slave_%s",slave->name); |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 220 | sysfs_remove_link(&(master->dev.kobj), linkname); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | |
| 224 | /* |
| 225 | * Show the slaves in the current bond. |
| 226 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 227 | static ssize_t bonding_show_slaves(struct device *d, |
| 228 | struct device_attribute *attr, char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 229 | { |
| 230 | struct slave *slave; |
| 231 | int i, res = 0; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 232 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 233 | |
| 234 | read_lock_bh(&bond->lock); |
| 235 | bond_for_each_slave(bond, slave, i) { |
| 236 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
| 237 | /* not enough space for another interface name */ |
| 238 | if ((PAGE_SIZE - res) > 10) |
| 239 | res = PAGE_SIZE - 10; |
| 240 | res += sprintf(buf + res, "++more++"); |
| 241 | break; |
| 242 | } |
| 243 | res += sprintf(buf + res, "%s ", slave->dev->name); |
| 244 | } |
| 245 | read_unlock_bh(&bond->lock); |
| 246 | res += sprintf(buf + res, "\n"); |
| 247 | res++; |
| 248 | return res; |
| 249 | } |
| 250 | |
| 251 | /* |
| 252 | * Set the slaves in the current bond. The bond interface must be |
| 253 | * up for this to succeed. |
| 254 | * This function is largely the same flow as bonding_update_bonds(). |
| 255 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 256 | static ssize_t bonding_store_slaves(struct device *d, |
| 257 | struct device_attribute *attr, |
| 258 | const char *buffer, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 259 | { |
| 260 | char command[IFNAMSIZ + 1] = { 0, }; |
| 261 | char *ifname; |
| 262 | int i, res, found, ret = count; |
| 263 | struct slave *slave; |
Luiz Fernando Capitulino | 3418db7 | 2006-02-01 00:54:34 -0800 | [diff] [blame] | 264 | struct net_device *dev = NULL; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 265 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 266 | |
| 267 | /* Quick sanity check -- is the bond interface up? */ |
| 268 | if (!(bond->dev->flags & IFF_UP)) { |
| 269 | printk(KERN_ERR DRV_NAME |
| 270 | ": %s: Unable to update slaves because interface is down.\n", |
| 271 | bond->dev->name); |
| 272 | ret = -EPERM; |
| 273 | goto out; |
| 274 | } |
| 275 | |
| 276 | /* Note: We can't hold bond->lock here, as bond_create grabs it. */ |
| 277 | |
| 278 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
| 279 | ifname = command + 1; |
| 280 | if ((strlen(command) <= 1) || |
| 281 | !dev_valid_name(ifname)) |
| 282 | goto err_no_cmd; |
| 283 | |
| 284 | if (command[0] == '+') { |
| 285 | |
| 286 | /* Got a slave name in ifname. Is it already in the list? */ |
| 287 | found = 0; |
| 288 | read_lock_bh(&bond->lock); |
| 289 | bond_for_each_slave(bond, slave, i) |
| 290 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
| 291 | printk(KERN_ERR DRV_NAME |
| 292 | ": %s: Interface %s is already enslaved!\n", |
| 293 | bond->dev->name, ifname); |
| 294 | ret = -EPERM; |
| 295 | read_unlock_bh(&bond->lock); |
| 296 | goto out; |
| 297 | } |
| 298 | |
| 299 | read_unlock_bh(&bond->lock); |
| 300 | printk(KERN_INFO DRV_NAME ": %s: Adding slave %s.\n", |
| 301 | bond->dev->name, ifname); |
Eric W. Biederman | 881d966 | 2007-09-17 11:56:21 -0700 | [diff] [blame] | 302 | dev = dev_get_by_name(&init_net, ifname); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 303 | if (!dev) { |
| 304 | printk(KERN_INFO DRV_NAME |
| 305 | ": %s: Interface %s does not exist!\n", |
| 306 | bond->dev->name, ifname); |
| 307 | ret = -EPERM; |
| 308 | goto out; |
| 309 | } |
| 310 | else |
| 311 | dev_put(dev); |
| 312 | |
| 313 | if (dev->flags & IFF_UP) { |
| 314 | printk(KERN_ERR DRV_NAME |
| 315 | ": %s: Error: Unable to enslave %s " |
| 316 | "because it is already up.\n", |
| 317 | bond->dev->name, dev->name); |
| 318 | ret = -EPERM; |
| 319 | goto out; |
| 320 | } |
| 321 | /* If this is the first slave, then we need to set |
| 322 | the master's hardware address to be the same as the |
| 323 | slave's. */ |
| 324 | if (!(*((u32 *) & (bond->dev->dev_addr[0])))) { |
| 325 | memcpy(bond->dev->dev_addr, dev->dev_addr, |
| 326 | dev->addr_len); |
| 327 | } |
| 328 | |
| 329 | /* Set the slave's MTU to match the bond */ |
| 330 | if (dev->mtu != bond->dev->mtu) { |
| 331 | if (dev->change_mtu) { |
| 332 | res = dev->change_mtu(dev, |
| 333 | bond->dev->mtu); |
| 334 | if (res) { |
| 335 | ret = res; |
| 336 | goto out; |
| 337 | } |
| 338 | } else { |
| 339 | dev->mtu = bond->dev->mtu; |
| 340 | } |
| 341 | } |
| 342 | rtnl_lock(); |
| 343 | res = bond_enslave(bond->dev, dev); |
| 344 | rtnl_unlock(); |
| 345 | if (res) { |
| 346 | ret = res; |
| 347 | } |
| 348 | goto out; |
| 349 | } |
| 350 | |
| 351 | if (command[0] == '-') { |
| 352 | dev = NULL; |
| 353 | bond_for_each_slave(bond, slave, i) |
| 354 | if (strnicmp(slave->dev->name, ifname, IFNAMSIZ) == 0) { |
| 355 | dev = slave->dev; |
| 356 | break; |
| 357 | } |
| 358 | if (dev) { |
| 359 | printk(KERN_INFO DRV_NAME ": %s: Removing slave %s\n", |
| 360 | bond->dev->name, dev->name); |
| 361 | rtnl_lock(); |
| 362 | res = bond_release(bond->dev, dev); |
| 363 | rtnl_unlock(); |
| 364 | if (res) { |
| 365 | ret = res; |
| 366 | goto out; |
| 367 | } |
| 368 | /* set the slave MTU to the default */ |
| 369 | if (dev->change_mtu) { |
| 370 | dev->change_mtu(dev, 1500); |
| 371 | } else { |
| 372 | dev->mtu = 1500; |
| 373 | } |
| 374 | } |
| 375 | else { |
| 376 | printk(KERN_ERR DRV_NAME ": unable to remove non-existent slave %s for bond %s.\n", |
| 377 | ifname, bond->dev->name); |
| 378 | ret = -ENODEV; |
| 379 | } |
| 380 | goto out; |
| 381 | } |
| 382 | |
| 383 | err_no_cmd: |
| 384 | printk(KERN_ERR DRV_NAME ": no command found in slaves file for bond %s. Use +ifname or -ifname.\n", bond->dev->name); |
| 385 | ret = -EPERM; |
| 386 | |
| 387 | out: |
| 388 | return ret; |
| 389 | } |
| 390 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 391 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, bonding_store_slaves); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 392 | |
| 393 | /* |
| 394 | * Show and set the bonding mode. The bond interface must be down to |
| 395 | * change the mode. |
| 396 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 397 | static ssize_t bonding_show_mode(struct device *d, |
| 398 | struct device_attribute *attr, char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 399 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 400 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 401 | |
| 402 | return sprintf(buf, "%s %d\n", |
| 403 | bond_mode_tbl[bond->params.mode].modename, |
| 404 | bond->params.mode) + 1; |
| 405 | } |
| 406 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 407 | static ssize_t bonding_store_mode(struct device *d, |
| 408 | struct device_attribute *attr, |
| 409 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 410 | { |
| 411 | int new_value, ret = count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 412 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 413 | |
| 414 | if (bond->dev->flags & IFF_UP) { |
| 415 | printk(KERN_ERR DRV_NAME |
| 416 | ": unable to update mode of %s because interface is up.\n", |
| 417 | bond->dev->name); |
| 418 | ret = -EPERM; |
| 419 | goto out; |
| 420 | } |
| 421 | |
| 422 | new_value = bond_parse_parm((char *)buf, bond_mode_tbl); |
| 423 | if (new_value < 0) { |
| 424 | printk(KERN_ERR DRV_NAME |
| 425 | ": %s: Ignoring invalid mode value %.*s.\n", |
| 426 | bond->dev->name, |
| 427 | (int)strlen(buf) - 1, buf); |
| 428 | ret = -EINVAL; |
| 429 | goto out; |
| 430 | } else { |
Jay Vosburgh | 8f903c7 | 2006-02-21 16:36:44 -0800 | [diff] [blame] | 431 | if (bond->params.mode == BOND_MODE_8023AD) |
| 432 | bond_unset_master_3ad_flags(bond); |
| 433 | |
| 434 | if (bond->params.mode == BOND_MODE_ALB) |
| 435 | bond_unset_master_alb_flags(bond); |
| 436 | |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 437 | bond->params.mode = new_value; |
| 438 | bond_set_mode_ops(bond, bond->params.mode); |
| 439 | printk(KERN_INFO DRV_NAME ": %s: setting mode to %s (%d).\n", |
| 440 | bond->dev->name, bond_mode_tbl[new_value].modename, new_value); |
| 441 | } |
| 442 | out: |
| 443 | return ret; |
| 444 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 445 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, bonding_show_mode, bonding_store_mode); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 446 | |
| 447 | /* |
| 448 | * Show and set the bonding transmit hash method. The bond interface must be down to |
| 449 | * change the xmit hash policy. |
| 450 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 451 | static ssize_t bonding_show_xmit_hash(struct device *d, |
| 452 | struct device_attribute *attr, |
| 453 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 454 | { |
| 455 | int count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 456 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 457 | |
| 458 | if ((bond->params.mode != BOND_MODE_XOR) && |
| 459 | (bond->params.mode != BOND_MODE_8023AD)) { |
| 460 | // Not Applicable |
| 461 | count = sprintf(buf, "NA\n") + 1; |
| 462 | } else { |
| 463 | count = sprintf(buf, "%s %d\n", |
| 464 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, |
| 465 | bond->params.xmit_policy) + 1; |
| 466 | } |
| 467 | |
| 468 | return count; |
| 469 | } |
| 470 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 471 | static ssize_t bonding_store_xmit_hash(struct device *d, |
| 472 | struct device_attribute *attr, |
| 473 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 474 | { |
| 475 | int new_value, ret = count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 476 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 477 | |
| 478 | if (bond->dev->flags & IFF_UP) { |
| 479 | printk(KERN_ERR DRV_NAME |
| 480 | "%s: Interface is up. Unable to update xmit policy.\n", |
| 481 | bond->dev->name); |
| 482 | ret = -EPERM; |
| 483 | goto out; |
| 484 | } |
| 485 | |
| 486 | if ((bond->params.mode != BOND_MODE_XOR) && |
| 487 | (bond->params.mode != BOND_MODE_8023AD)) { |
| 488 | printk(KERN_ERR DRV_NAME |
| 489 | "%s: Transmit hash policy is irrelevant in this mode.\n", |
| 490 | bond->dev->name); |
| 491 | ret = -EPERM; |
| 492 | goto out; |
| 493 | } |
| 494 | |
| 495 | new_value = bond_parse_parm((char *)buf, xmit_hashtype_tbl); |
| 496 | if (new_value < 0) { |
| 497 | printk(KERN_ERR DRV_NAME |
| 498 | ": %s: Ignoring invalid xmit hash policy value %.*s.\n", |
| 499 | bond->dev->name, |
| 500 | (int)strlen(buf) - 1, buf); |
| 501 | ret = -EINVAL; |
| 502 | goto out; |
| 503 | } else { |
| 504 | bond->params.xmit_policy = new_value; |
| 505 | bond_set_mode_ops(bond, bond->params.mode); |
| 506 | printk(KERN_INFO DRV_NAME ": %s: setting xmit hash policy to %s (%d).\n", |
| 507 | bond->dev->name, xmit_hashtype_tbl[new_value].modename, new_value); |
| 508 | } |
| 509 | out: |
| 510 | return ret; |
| 511 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 512 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, bonding_show_xmit_hash, bonding_store_xmit_hash); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 513 | |
| 514 | /* |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 515 | * Show and set arp_validate. |
| 516 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 517 | static ssize_t bonding_show_arp_validate(struct device *d, |
| 518 | struct device_attribute *attr, |
| 519 | char *buf) |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 520 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 521 | struct bonding *bond = to_bond(d); |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 522 | |
| 523 | return sprintf(buf, "%s %d\n", |
| 524 | arp_validate_tbl[bond->params.arp_validate].modename, |
| 525 | bond->params.arp_validate) + 1; |
| 526 | } |
| 527 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 528 | static ssize_t bonding_store_arp_validate(struct device *d, |
| 529 | struct device_attribute *attr, |
| 530 | const char *buf, size_t count) |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 531 | { |
| 532 | int new_value; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 533 | struct bonding *bond = to_bond(d); |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 534 | |
| 535 | new_value = bond_parse_parm((char *)buf, arp_validate_tbl); |
| 536 | if (new_value < 0) { |
| 537 | printk(KERN_ERR DRV_NAME |
| 538 | ": %s: Ignoring invalid arp_validate value %s\n", |
| 539 | bond->dev->name, buf); |
| 540 | return -EINVAL; |
| 541 | } |
| 542 | if (new_value && (bond->params.mode != BOND_MODE_ACTIVEBACKUP)) { |
| 543 | printk(KERN_ERR DRV_NAME |
| 544 | ": %s: arp_validate only supported in active-backup mode.\n", |
| 545 | bond->dev->name); |
| 546 | return -EINVAL; |
| 547 | } |
| 548 | printk(KERN_INFO DRV_NAME ": %s: setting arp_validate to %s (%d).\n", |
| 549 | bond->dev->name, arp_validate_tbl[new_value].modename, |
| 550 | new_value); |
| 551 | |
| 552 | if (!bond->params.arp_validate && new_value) { |
| 553 | bond_register_arp(bond); |
| 554 | } else if (bond->params.arp_validate && !new_value) { |
| 555 | bond_unregister_arp(bond); |
| 556 | } |
| 557 | |
| 558 | bond->params.arp_validate = new_value; |
| 559 | |
| 560 | return count; |
| 561 | } |
| 562 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 563 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, bonding_store_arp_validate); |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 564 | |
| 565 | /* |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 566 | * Show and set the arp timer interval. There are two tricky bits |
| 567 | * here. First, if ARP monitoring is activated, then we must disable |
| 568 | * MII monitoring. Second, if the ARP timer isn't running, we must |
| 569 | * start it. |
| 570 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 571 | static ssize_t bonding_show_arp_interval(struct device *d, |
| 572 | struct device_attribute *attr, |
| 573 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 574 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 575 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 576 | |
| 577 | return sprintf(buf, "%d\n", bond->params.arp_interval) + 1; |
| 578 | } |
| 579 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 580 | static ssize_t bonding_store_arp_interval(struct device *d, |
| 581 | struct device_attribute *attr, |
| 582 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 583 | { |
| 584 | int new_value, ret = count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 585 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 586 | |
| 587 | if (sscanf(buf, "%d", &new_value) != 1) { |
| 588 | printk(KERN_ERR DRV_NAME |
| 589 | ": %s: no arp_interval value specified.\n", |
| 590 | bond->dev->name); |
| 591 | ret = -EINVAL; |
| 592 | goto out; |
| 593 | } |
| 594 | if (new_value < 0) { |
| 595 | printk(KERN_ERR DRV_NAME |
| 596 | ": %s: Invalid arp_interval value %d not in range 1-%d; rejected.\n", |
| 597 | bond->dev->name, new_value, INT_MAX); |
| 598 | ret = -EINVAL; |
| 599 | goto out; |
| 600 | } |
| 601 | |
| 602 | printk(KERN_INFO DRV_NAME |
| 603 | ": %s: Setting ARP monitoring interval to %d.\n", |
| 604 | bond->dev->name, new_value); |
| 605 | bond->params.arp_interval = new_value; |
| 606 | if (bond->params.miimon) { |
| 607 | printk(KERN_INFO DRV_NAME |
| 608 | ": %s: ARP monitoring cannot be used with MII monitoring. " |
| 609 | "%s Disabling MII monitoring.\n", |
| 610 | bond->dev->name, bond->dev->name); |
| 611 | bond->params.miimon = 0; |
| 612 | /* Kill MII timer, else it brings bond's link down */ |
| 613 | if (bond->arp_timer.function) { |
| 614 | printk(KERN_INFO DRV_NAME |
| 615 | ": %s: Kill MII timer, else it brings bond's link down...\n", |
| 616 | bond->dev->name); |
| 617 | del_timer_sync(&bond->mii_timer); |
| 618 | } |
| 619 | } |
| 620 | if (!bond->params.arp_targets[0]) { |
| 621 | printk(KERN_INFO DRV_NAME |
| 622 | ": %s: ARP monitoring has been set up, " |
| 623 | "but no ARP targets have been specified.\n", |
| 624 | bond->dev->name); |
| 625 | } |
| 626 | if (bond->dev->flags & IFF_UP) { |
| 627 | /* If the interface is up, we may need to fire off |
| 628 | * the ARP timer. If the interface is down, the |
| 629 | * timer will get fired off when the open function |
| 630 | * is called. |
| 631 | */ |
| 632 | if (bond->arp_timer.function) { |
| 633 | /* The timer's already set up, so fire it off */ |
| 634 | mod_timer(&bond->arp_timer, jiffies + 1); |
| 635 | } else { |
| 636 | /* Set up the timer. */ |
| 637 | init_timer(&bond->arp_timer); |
| 638 | bond->arp_timer.expires = jiffies + 1; |
| 639 | bond->arp_timer.data = |
| 640 | (unsigned long) bond->dev; |
| 641 | if (bond->params.mode == BOND_MODE_ACTIVEBACKUP) { |
| 642 | bond->arp_timer.function = |
| 643 | (void *) |
| 644 | &bond_activebackup_arp_mon; |
| 645 | } else { |
| 646 | bond->arp_timer.function = |
| 647 | (void *) |
| 648 | &bond_loadbalance_arp_mon; |
| 649 | } |
| 650 | add_timer(&bond->arp_timer); |
| 651 | } |
| 652 | } |
| 653 | |
| 654 | out: |
| 655 | return ret; |
| 656 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 657 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR , bonding_show_arp_interval, bonding_store_arp_interval); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 658 | |
| 659 | /* |
| 660 | * Show and set the arp targets. |
| 661 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 662 | static ssize_t bonding_show_arp_targets(struct device *d, |
| 663 | struct device_attribute *attr, |
| 664 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 665 | { |
| 666 | int i, res = 0; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 667 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 668 | |
| 669 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { |
| 670 | if (bond->params.arp_targets[i]) |
| 671 | res += sprintf(buf + res, "%u.%u.%u.%u ", |
| 672 | NIPQUAD(bond->params.arp_targets[i])); |
| 673 | } |
| 674 | if (res) |
| 675 | res--; /* eat the leftover space */ |
| 676 | res += sprintf(buf + res, "\n"); |
| 677 | res++; |
| 678 | return res; |
| 679 | } |
| 680 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 681 | static ssize_t bonding_store_arp_targets(struct device *d, |
| 682 | struct device_attribute *attr, |
| 683 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 684 | { |
| 685 | u32 newtarget; |
| 686 | int i = 0, done = 0, ret = count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 687 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 688 | u32 *targets; |
| 689 | |
| 690 | targets = bond->params.arp_targets; |
| 691 | newtarget = in_aton(buf + 1); |
| 692 | /* look for adds */ |
| 693 | if (buf[0] == '+') { |
| 694 | if ((newtarget == 0) || (newtarget == INADDR_BROADCAST)) { |
| 695 | printk(KERN_ERR DRV_NAME |
| 696 | ": %s: invalid ARP target %u.%u.%u.%u specified for addition\n", |
| 697 | bond->dev->name, NIPQUAD(newtarget)); |
| 698 | ret = -EINVAL; |
| 699 | goto out; |
| 700 | } |
| 701 | /* look for an empty slot to put the target in, and check for dupes */ |
| 702 | for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) { |
| 703 | if (targets[i] == newtarget) { /* duplicate */ |
| 704 | printk(KERN_ERR DRV_NAME |
| 705 | ": %s: ARP target %u.%u.%u.%u is already present\n", |
| 706 | bond->dev->name, NIPQUAD(newtarget)); |
| 707 | if (done) |
| 708 | targets[i] = 0; |
| 709 | ret = -EINVAL; |
| 710 | goto out; |
| 711 | } |
| 712 | if (targets[i] == 0 && !done) { |
| 713 | printk(KERN_INFO DRV_NAME |
| 714 | ": %s: adding ARP target %d.%d.%d.%d.\n", |
| 715 | bond->dev->name, NIPQUAD(newtarget)); |
| 716 | done = 1; |
| 717 | targets[i] = newtarget; |
| 718 | } |
| 719 | } |
| 720 | if (!done) { |
| 721 | printk(KERN_ERR DRV_NAME |
| 722 | ": %s: ARP target table is full!\n", |
| 723 | bond->dev->name); |
| 724 | ret = -EINVAL; |
| 725 | goto out; |
| 726 | } |
| 727 | |
| 728 | } |
| 729 | else if (buf[0] == '-') { |
| 730 | if ((newtarget == 0) || (newtarget == INADDR_BROADCAST)) { |
| 731 | printk(KERN_ERR DRV_NAME |
| 732 | ": %s: invalid ARP target %d.%d.%d.%d specified for removal\n", |
| 733 | bond->dev->name, NIPQUAD(newtarget)); |
| 734 | ret = -EINVAL; |
| 735 | goto out; |
| 736 | } |
| 737 | |
| 738 | for (i = 0; (i < BOND_MAX_ARP_TARGETS); i++) { |
| 739 | if (targets[i] == newtarget) { |
| 740 | printk(KERN_INFO DRV_NAME |
| 741 | ": %s: removing ARP target %d.%d.%d.%d.\n", |
| 742 | bond->dev->name, NIPQUAD(newtarget)); |
| 743 | targets[i] = 0; |
| 744 | done = 1; |
| 745 | } |
| 746 | } |
| 747 | if (!done) { |
| 748 | printk(KERN_INFO DRV_NAME |
| 749 | ": %s: unable to remove nonexistent ARP target %d.%d.%d.%d.\n", |
| 750 | bond->dev->name, NIPQUAD(newtarget)); |
| 751 | ret = -EINVAL; |
| 752 | goto out; |
| 753 | } |
| 754 | } |
| 755 | else { |
| 756 | printk(KERN_ERR DRV_NAME ": no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
| 757 | bond->dev->name); |
| 758 | ret = -EPERM; |
| 759 | goto out; |
| 760 | } |
| 761 | |
| 762 | out: |
| 763 | return ret; |
| 764 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 765 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 766 | |
| 767 | /* |
| 768 | * Show and set the up and down delays. These must be multiples of the |
| 769 | * MII monitoring value, and are stored internally as the multiplier. |
| 770 | * Thus, we must translate to MS for the real world. |
| 771 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 772 | static ssize_t bonding_show_downdelay(struct device *d, |
| 773 | struct device_attribute *attr, |
| 774 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 775 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 776 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 777 | |
| 778 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon) + 1; |
| 779 | } |
| 780 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 781 | static ssize_t bonding_store_downdelay(struct device *d, |
| 782 | struct device_attribute *attr, |
| 783 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 784 | { |
| 785 | int new_value, ret = count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 786 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 787 | |
| 788 | if (!(bond->params.miimon)) { |
| 789 | printk(KERN_ERR DRV_NAME |
| 790 | ": %s: Unable to set down delay as MII monitoring is disabled\n", |
| 791 | bond->dev->name); |
| 792 | ret = -EPERM; |
| 793 | goto out; |
| 794 | } |
| 795 | |
| 796 | if (sscanf(buf, "%d", &new_value) != 1) { |
| 797 | printk(KERN_ERR DRV_NAME |
| 798 | ": %s: no down delay value specified.\n", |
| 799 | bond->dev->name); |
| 800 | ret = -EINVAL; |
| 801 | goto out; |
| 802 | } |
| 803 | if (new_value < 0) { |
| 804 | printk(KERN_ERR DRV_NAME |
| 805 | ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
| 806 | bond->dev->name, new_value, 1, INT_MAX); |
| 807 | ret = -EINVAL; |
| 808 | goto out; |
| 809 | } else { |
| 810 | if ((new_value % bond->params.miimon) != 0) { |
| 811 | printk(KERN_WARNING DRV_NAME |
| 812 | ": %s: Warning: down delay (%d) is not a multiple " |
| 813 | "of miimon (%d), delay rounded to %d ms\n", |
| 814 | bond->dev->name, new_value, bond->params.miimon, |
| 815 | (new_value / bond->params.miimon) * |
| 816 | bond->params.miimon); |
| 817 | } |
| 818 | bond->params.downdelay = new_value / bond->params.miimon; |
| 819 | printk(KERN_INFO DRV_NAME ": %s: Setting down delay to %d.\n", |
| 820 | bond->dev->name, bond->params.downdelay * bond->params.miimon); |
| 821 | |
| 822 | } |
| 823 | |
| 824 | out: |
| 825 | return ret; |
| 826 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 827 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR , bonding_show_downdelay, bonding_store_downdelay); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 828 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 829 | static ssize_t bonding_show_updelay(struct device *d, |
| 830 | struct device_attribute *attr, |
| 831 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 832 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 833 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 834 | |
| 835 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon) + 1; |
| 836 | |
| 837 | } |
| 838 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 839 | static ssize_t bonding_store_updelay(struct device *d, |
| 840 | struct device_attribute *attr, |
| 841 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 842 | { |
| 843 | int new_value, ret = count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 844 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 845 | |
| 846 | if (!(bond->params.miimon)) { |
| 847 | printk(KERN_ERR DRV_NAME |
| 848 | ": %s: Unable to set up delay as MII monitoring is disabled\n", |
| 849 | bond->dev->name); |
| 850 | ret = -EPERM; |
| 851 | goto out; |
| 852 | } |
| 853 | |
| 854 | if (sscanf(buf, "%d", &new_value) != 1) { |
| 855 | printk(KERN_ERR DRV_NAME |
| 856 | ": %s: no up delay value specified.\n", |
| 857 | bond->dev->name); |
| 858 | ret = -EINVAL; |
| 859 | goto out; |
| 860 | } |
| 861 | if (new_value < 0) { |
| 862 | printk(KERN_ERR DRV_NAME |
| 863 | ": %s: Invalid down delay value %d not in range %d-%d; rejected.\n", |
| 864 | bond->dev->name, new_value, 1, INT_MAX); |
| 865 | ret = -EINVAL; |
| 866 | goto out; |
| 867 | } else { |
| 868 | if ((new_value % bond->params.miimon) != 0) { |
| 869 | printk(KERN_WARNING DRV_NAME |
| 870 | ": %s: Warning: up delay (%d) is not a multiple " |
| 871 | "of miimon (%d), updelay rounded to %d ms\n", |
| 872 | bond->dev->name, new_value, bond->params.miimon, |
| 873 | (new_value / bond->params.miimon) * |
| 874 | bond->params.miimon); |
| 875 | } |
| 876 | bond->params.updelay = new_value / bond->params.miimon; |
| 877 | printk(KERN_INFO DRV_NAME ": %s: Setting up delay to %d.\n", |
| 878 | bond->dev->name, bond->params.updelay * bond->params.miimon); |
| 879 | |
| 880 | } |
| 881 | |
| 882 | out: |
| 883 | return ret; |
| 884 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 885 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR , bonding_show_updelay, bonding_store_updelay); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 886 | |
| 887 | /* |
| 888 | * Show and set the LACP interval. Interface must be down, and the mode |
| 889 | * must be set to 802.3ad mode. |
| 890 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 891 | static ssize_t bonding_show_lacp(struct device *d, |
| 892 | struct device_attribute *attr, |
| 893 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 894 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 895 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 896 | |
| 897 | return sprintf(buf, "%s %d\n", |
| 898 | bond_lacp_tbl[bond->params.lacp_fast].modename, |
| 899 | bond->params.lacp_fast) + 1; |
| 900 | } |
| 901 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 902 | static ssize_t bonding_store_lacp(struct device *d, |
| 903 | struct device_attribute *attr, |
| 904 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 905 | { |
| 906 | int new_value, ret = count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 907 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 908 | |
| 909 | if (bond->dev->flags & IFF_UP) { |
| 910 | printk(KERN_ERR DRV_NAME |
| 911 | ": %s: Unable to update LACP rate because interface is up.\n", |
| 912 | bond->dev->name); |
| 913 | ret = -EPERM; |
| 914 | goto out; |
| 915 | } |
| 916 | |
| 917 | if (bond->params.mode != BOND_MODE_8023AD) { |
| 918 | printk(KERN_ERR DRV_NAME |
| 919 | ": %s: Unable to update LACP rate because bond is not in 802.3ad mode.\n", |
| 920 | bond->dev->name); |
| 921 | ret = -EPERM; |
| 922 | goto out; |
| 923 | } |
| 924 | |
| 925 | new_value = bond_parse_parm((char *)buf, bond_lacp_tbl); |
| 926 | |
| 927 | if ((new_value == 1) || (new_value == 0)) { |
| 928 | bond->params.lacp_fast = new_value; |
| 929 | printk(KERN_INFO DRV_NAME |
| 930 | ": %s: Setting LACP rate to %s (%d).\n", |
| 931 | bond->dev->name, bond_lacp_tbl[new_value].modename, new_value); |
| 932 | } else { |
| 933 | printk(KERN_ERR DRV_NAME |
| 934 | ": %s: Ignoring invalid LACP rate value %.*s.\n", |
| 935 | bond->dev->name, (int)strlen(buf) - 1, buf); |
| 936 | ret = -EINVAL; |
| 937 | } |
| 938 | out: |
| 939 | return ret; |
| 940 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 941 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, bonding_show_lacp, bonding_store_lacp); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 942 | |
| 943 | /* |
| 944 | * Show and set the MII monitor interval. There are two tricky bits |
| 945 | * here. First, if MII monitoring is activated, then we must disable |
| 946 | * ARP monitoring. Second, if the timer isn't running, we must |
| 947 | * start it. |
| 948 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 949 | static ssize_t bonding_show_miimon(struct device *d, |
| 950 | struct device_attribute *attr, |
| 951 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 952 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 953 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 954 | |
| 955 | return sprintf(buf, "%d\n", bond->params.miimon) + 1; |
| 956 | } |
| 957 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 958 | static ssize_t bonding_store_miimon(struct device *d, |
| 959 | struct device_attribute *attr, |
| 960 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 961 | { |
| 962 | int new_value, ret = count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 963 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 964 | |
| 965 | if (sscanf(buf, "%d", &new_value) != 1) { |
| 966 | printk(KERN_ERR DRV_NAME |
| 967 | ": %s: no miimon value specified.\n", |
| 968 | bond->dev->name); |
| 969 | ret = -EINVAL; |
| 970 | goto out; |
| 971 | } |
| 972 | if (new_value < 0) { |
| 973 | printk(KERN_ERR DRV_NAME |
| 974 | ": %s: Invalid miimon value %d not in range %d-%d; rejected.\n", |
| 975 | bond->dev->name, new_value, 1, INT_MAX); |
| 976 | ret = -EINVAL; |
| 977 | goto out; |
| 978 | } else { |
| 979 | printk(KERN_INFO DRV_NAME |
| 980 | ": %s: Setting MII monitoring interval to %d.\n", |
| 981 | bond->dev->name, new_value); |
| 982 | bond->params.miimon = new_value; |
| 983 | if(bond->params.updelay) |
| 984 | printk(KERN_INFO DRV_NAME |
| 985 | ": %s: Note: Updating updelay (to %d) " |
| 986 | "since it is a multiple of the miimon value.\n", |
| 987 | bond->dev->name, |
| 988 | bond->params.updelay * bond->params.miimon); |
| 989 | if(bond->params.downdelay) |
| 990 | printk(KERN_INFO DRV_NAME |
| 991 | ": %s: Note: Updating downdelay (to %d) " |
| 992 | "since it is a multiple of the miimon value.\n", |
| 993 | bond->dev->name, |
| 994 | bond->params.downdelay * bond->params.miimon); |
| 995 | if (bond->params.arp_interval) { |
| 996 | printk(KERN_INFO DRV_NAME |
| 997 | ": %s: MII monitoring cannot be used with " |
| 998 | "ARP monitoring. Disabling ARP monitoring...\n", |
| 999 | bond->dev->name); |
| 1000 | bond->params.arp_interval = 0; |
Jay Vosburgh | f5b2b96 | 2006-09-22 21:54:53 -0700 | [diff] [blame] | 1001 | if (bond->params.arp_validate) { |
| 1002 | bond_unregister_arp(bond); |
| 1003 | bond->params.arp_validate = |
| 1004 | BOND_ARP_VALIDATE_NONE; |
| 1005 | } |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1006 | /* Kill ARP timer, else it brings bond's link down */ |
| 1007 | if (bond->mii_timer.function) { |
| 1008 | printk(KERN_INFO DRV_NAME |
| 1009 | ": %s: Kill ARP timer, else it brings bond's link down...\n", |
| 1010 | bond->dev->name); |
| 1011 | del_timer_sync(&bond->arp_timer); |
| 1012 | } |
| 1013 | } |
| 1014 | |
| 1015 | if (bond->dev->flags & IFF_UP) { |
| 1016 | /* If the interface is up, we may need to fire off |
| 1017 | * the MII timer. If the interface is down, the |
| 1018 | * timer will get fired off when the open function |
| 1019 | * is called. |
| 1020 | */ |
| 1021 | if (bond->mii_timer.function) { |
| 1022 | /* The timer's already set up, so fire it off */ |
| 1023 | mod_timer(&bond->mii_timer, jiffies + 1); |
| 1024 | } else { |
| 1025 | /* Set up the timer. */ |
| 1026 | init_timer(&bond->mii_timer); |
| 1027 | bond->mii_timer.expires = jiffies + 1; |
| 1028 | bond->mii_timer.data = |
| 1029 | (unsigned long) bond->dev; |
| 1030 | bond->mii_timer.function = |
| 1031 | (void *) &bond_mii_monitor; |
| 1032 | add_timer(&bond->mii_timer); |
| 1033 | } |
| 1034 | } |
| 1035 | } |
| 1036 | out: |
| 1037 | return ret; |
| 1038 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1039 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, bonding_show_miimon, bonding_store_miimon); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1040 | |
| 1041 | /* |
| 1042 | * Show and set the primary slave. The store function is much |
| 1043 | * simpler than bonding_store_slaves function because it only needs to |
| 1044 | * handle one interface name. |
| 1045 | * The bond must be a mode that supports a primary for this be |
| 1046 | * set. |
| 1047 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1048 | static ssize_t bonding_show_primary(struct device *d, |
| 1049 | struct device_attribute *attr, |
| 1050 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1051 | { |
| 1052 | int count = 0; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1053 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1054 | |
| 1055 | if (bond->primary_slave) |
| 1056 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name) + 1; |
| 1057 | else |
| 1058 | count = sprintf(buf, "\n") + 1; |
| 1059 | |
| 1060 | return count; |
| 1061 | } |
| 1062 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1063 | static ssize_t bonding_store_primary(struct device *d, |
| 1064 | struct device_attribute *attr, |
| 1065 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1066 | { |
| 1067 | int i; |
| 1068 | struct slave *slave; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1069 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1070 | |
| 1071 | write_lock_bh(&bond->lock); |
| 1072 | if (!USES_PRIMARY(bond->params.mode)) { |
| 1073 | printk(KERN_INFO DRV_NAME |
| 1074 | ": %s: Unable to set primary slave; %s is in mode %d\n", |
| 1075 | bond->dev->name, bond->dev->name, bond->params.mode); |
| 1076 | } else { |
| 1077 | bond_for_each_slave(bond, slave, i) { |
| 1078 | if (strnicmp |
| 1079 | (slave->dev->name, buf, |
| 1080 | strlen(slave->dev->name)) == 0) { |
| 1081 | printk(KERN_INFO DRV_NAME |
| 1082 | ": %s: Setting %s as primary slave.\n", |
| 1083 | bond->dev->name, slave->dev->name); |
| 1084 | bond->primary_slave = slave; |
| 1085 | bond_select_active_slave(bond); |
| 1086 | goto out; |
| 1087 | } |
| 1088 | } |
| 1089 | |
| 1090 | /* if we got here, then we didn't match the name of any slave */ |
| 1091 | |
| 1092 | if (strlen(buf) == 0 || buf[0] == '\n') { |
| 1093 | printk(KERN_INFO DRV_NAME |
| 1094 | ": %s: Setting primary slave to None.\n", |
| 1095 | bond->dev->name); |
Luiz Fernando Capitulino | 3418db7 | 2006-02-01 00:54:34 -0800 | [diff] [blame] | 1096 | bond->primary_slave = NULL; |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1097 | bond_select_active_slave(bond); |
| 1098 | } else { |
| 1099 | printk(KERN_INFO DRV_NAME |
| 1100 | ": %s: Unable to set %.*s as primary slave as it is not a slave.\n", |
| 1101 | bond->dev->name, (int)strlen(buf) - 1, buf); |
| 1102 | } |
| 1103 | } |
| 1104 | out: |
| 1105 | write_unlock_bh(&bond->lock); |
| 1106 | return count; |
| 1107 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1108 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, bonding_show_primary, bonding_store_primary); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1109 | |
| 1110 | /* |
| 1111 | * Show and set the use_carrier flag. |
| 1112 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1113 | static ssize_t bonding_show_carrier(struct device *d, |
| 1114 | struct device_attribute *attr, |
| 1115 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1116 | { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1117 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1118 | |
| 1119 | return sprintf(buf, "%d\n", bond->params.use_carrier) + 1; |
| 1120 | } |
| 1121 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1122 | static ssize_t bonding_store_carrier(struct device *d, |
| 1123 | struct device_attribute *attr, |
| 1124 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1125 | { |
| 1126 | int new_value, ret = count; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1127 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1128 | |
| 1129 | |
| 1130 | if (sscanf(buf, "%d", &new_value) != 1) { |
| 1131 | printk(KERN_ERR DRV_NAME |
| 1132 | ": %s: no use_carrier value specified.\n", |
| 1133 | bond->dev->name); |
| 1134 | ret = -EINVAL; |
| 1135 | goto out; |
| 1136 | } |
| 1137 | if ((new_value == 0) || (new_value == 1)) { |
| 1138 | bond->params.use_carrier = new_value; |
| 1139 | printk(KERN_INFO DRV_NAME ": %s: Setting use_carrier to %d.\n", |
| 1140 | bond->dev->name, new_value); |
| 1141 | } else { |
| 1142 | printk(KERN_INFO DRV_NAME |
| 1143 | ": %s: Ignoring invalid use_carrier value %d.\n", |
| 1144 | bond->dev->name, new_value); |
| 1145 | } |
| 1146 | out: |
| 1147 | return count; |
| 1148 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1149 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, bonding_show_carrier, bonding_store_carrier); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1150 | |
| 1151 | |
| 1152 | /* |
| 1153 | * Show and set currently active_slave. |
| 1154 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1155 | static ssize_t bonding_show_active_slave(struct device *d, |
| 1156 | struct device_attribute *attr, |
| 1157 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1158 | { |
| 1159 | struct slave *curr; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1160 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1161 | int count; |
| 1162 | |
| 1163 | |
| 1164 | read_lock(&bond->curr_slave_lock); |
| 1165 | curr = bond->curr_active_slave; |
| 1166 | read_unlock(&bond->curr_slave_lock); |
| 1167 | |
| 1168 | if (USES_PRIMARY(bond->params.mode) && curr) |
| 1169 | count = sprintf(buf, "%s\n", curr->dev->name) + 1; |
| 1170 | else |
| 1171 | count = sprintf(buf, "\n") + 1; |
| 1172 | return count; |
| 1173 | } |
| 1174 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1175 | static ssize_t bonding_store_active_slave(struct device *d, |
| 1176 | struct device_attribute *attr, |
| 1177 | const char *buf, size_t count) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1178 | { |
| 1179 | int i; |
| 1180 | struct slave *slave; |
| 1181 | struct slave *old_active = NULL; |
| 1182 | struct slave *new_active = NULL; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1183 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1184 | |
| 1185 | write_lock_bh(&bond->lock); |
| 1186 | if (!USES_PRIMARY(bond->params.mode)) { |
| 1187 | printk(KERN_INFO DRV_NAME |
| 1188 | ": %s: Unable to change active 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 | old_active = bond->curr_active_slave; |
| 1196 | new_active = slave; |
Jay Vosburgh | a50d8de | 2006-09-22 21:53:25 -0700 | [diff] [blame] | 1197 | if (new_active == old_active) { |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1198 | /* do nothing */ |
| 1199 | printk(KERN_INFO DRV_NAME |
| 1200 | ": %s: %s is already the current active slave.\n", |
| 1201 | bond->dev->name, slave->dev->name); |
| 1202 | goto out; |
| 1203 | } |
| 1204 | else { |
| 1205 | if ((new_active) && |
| 1206 | (old_active) && |
| 1207 | (new_active->link == BOND_LINK_UP) && |
| 1208 | IS_UP(new_active->dev)) { |
| 1209 | printk(KERN_INFO DRV_NAME |
| 1210 | ": %s: Setting %s as active slave.\n", |
| 1211 | bond->dev->name, slave->dev->name); |
| 1212 | bond_change_active_slave(bond, new_active); |
| 1213 | } |
| 1214 | else { |
| 1215 | printk(KERN_INFO DRV_NAME |
| 1216 | ": %s: Could not set %s as active slave; " |
| 1217 | "either %s is down or the link is down.\n", |
| 1218 | bond->dev->name, slave->dev->name, |
| 1219 | slave->dev->name); |
| 1220 | } |
| 1221 | goto out; |
| 1222 | } |
| 1223 | } |
| 1224 | } |
| 1225 | |
| 1226 | /* if we got here, then we didn't match the name of any slave */ |
| 1227 | |
| 1228 | if (strlen(buf) == 0 || buf[0] == '\n') { |
| 1229 | printk(KERN_INFO DRV_NAME |
| 1230 | ": %s: Setting active slave to None.\n", |
| 1231 | bond->dev->name); |
Luiz Fernando Capitulino | 3418db7 | 2006-02-01 00:54:34 -0800 | [diff] [blame] | 1232 | bond->primary_slave = NULL; |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1233 | bond_select_active_slave(bond); |
| 1234 | } else { |
| 1235 | printk(KERN_INFO DRV_NAME |
| 1236 | ": %s: Unable to set %.*s as active slave as it is not a slave.\n", |
| 1237 | bond->dev->name, (int)strlen(buf) - 1, buf); |
| 1238 | } |
| 1239 | } |
| 1240 | out: |
| 1241 | write_unlock_bh(&bond->lock); |
| 1242 | return count; |
| 1243 | |
| 1244 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1245 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, bonding_show_active_slave, bonding_store_active_slave); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1246 | |
| 1247 | |
| 1248 | /* |
| 1249 | * Show link status of the bond interface. |
| 1250 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1251 | static ssize_t bonding_show_mii_status(struct device *d, |
| 1252 | struct device_attribute *attr, |
| 1253 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1254 | { |
| 1255 | struct slave *curr; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1256 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1257 | |
| 1258 | read_lock(&bond->curr_slave_lock); |
| 1259 | curr = bond->curr_active_slave; |
| 1260 | read_unlock(&bond->curr_slave_lock); |
| 1261 | |
| 1262 | return sprintf(buf, "%s\n", (curr) ? "up" : "down") + 1; |
| 1263 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1264 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1265 | |
| 1266 | |
| 1267 | /* |
| 1268 | * Show current 802.3ad aggregator ID. |
| 1269 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1270 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
| 1271 | struct device_attribute *attr, |
| 1272 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1273 | { |
| 1274 | int count = 0; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1275 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1276 | |
| 1277 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 1278 | struct ad_info ad_info; |
| 1279 | count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.aggregator_id) + 1; |
| 1280 | } |
| 1281 | else |
| 1282 | count = sprintf(buf, "\n") + 1; |
| 1283 | |
| 1284 | return count; |
| 1285 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1286 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1287 | |
| 1288 | |
| 1289 | /* |
| 1290 | * Show number of active 802.3ad ports. |
| 1291 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1292 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
| 1293 | struct device_attribute *attr, |
| 1294 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1295 | { |
| 1296 | int count = 0; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1297 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1298 | |
| 1299 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 1300 | struct ad_info ad_info; |
| 1301 | count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0: ad_info.ports) + 1; |
| 1302 | } |
| 1303 | else |
| 1304 | count = sprintf(buf, "\n") + 1; |
| 1305 | |
| 1306 | return count; |
| 1307 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1308 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1309 | |
| 1310 | |
| 1311 | /* |
| 1312 | * Show current 802.3ad actor key. |
| 1313 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1314 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
| 1315 | struct device_attribute *attr, |
| 1316 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1317 | { |
| 1318 | int count = 0; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1319 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1320 | |
| 1321 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 1322 | struct ad_info ad_info; |
| 1323 | count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.actor_key) + 1; |
| 1324 | } |
| 1325 | else |
| 1326 | count = sprintf(buf, "\n") + 1; |
| 1327 | |
| 1328 | return count; |
| 1329 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1330 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1331 | |
| 1332 | |
| 1333 | /* |
| 1334 | * Show current 802.3ad partner key. |
| 1335 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1336 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
| 1337 | struct device_attribute *attr, |
| 1338 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1339 | { |
| 1340 | int count = 0; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1341 | struct bonding *bond = to_bond(d); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1342 | |
| 1343 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 1344 | struct ad_info ad_info; |
| 1345 | count = sprintf(buf, "%d\n", (bond_3ad_get_active_agg_info(bond, &ad_info)) ? 0 : ad_info.partner_key) + 1; |
| 1346 | } |
| 1347 | else |
| 1348 | count = sprintf(buf, "\n") + 1; |
| 1349 | |
| 1350 | return count; |
| 1351 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1352 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1353 | |
| 1354 | |
| 1355 | /* |
| 1356 | * Show current 802.3ad partner mac. |
| 1357 | */ |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1358 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
| 1359 | struct device_attribute *attr, |
| 1360 | char *buf) |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1361 | { |
| 1362 | int count = 0; |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1363 | struct bonding *bond = to_bond(d); |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1364 | DECLARE_MAC_BUF(mac); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1365 | |
| 1366 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 1367 | struct ad_info ad_info; |
| 1368 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) { |
Joe Perches | 0795af5 | 2007-10-03 17:59:30 -0700 | [diff] [blame] | 1369 | count = sprintf(buf,"%s\n", |
| 1370 | print_mac(mac, ad_info.partner_system)) |
| 1371 | + 1; |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1372 | } |
| 1373 | } |
| 1374 | else |
| 1375 | count = sprintf(buf, "\n") + 1; |
| 1376 | |
| 1377 | return count; |
| 1378 | } |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1379 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1380 | |
| 1381 | |
| 1382 | |
| 1383 | static struct attribute *per_bond_attrs[] = { |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1384 | &dev_attr_slaves.attr, |
| 1385 | &dev_attr_mode.attr, |
| 1386 | &dev_attr_arp_validate.attr, |
| 1387 | &dev_attr_arp_interval.attr, |
| 1388 | &dev_attr_arp_ip_target.attr, |
| 1389 | &dev_attr_downdelay.attr, |
| 1390 | &dev_attr_updelay.attr, |
| 1391 | &dev_attr_lacp_rate.attr, |
| 1392 | &dev_attr_xmit_hash_policy.attr, |
| 1393 | &dev_attr_miimon.attr, |
| 1394 | &dev_attr_primary.attr, |
| 1395 | &dev_attr_use_carrier.attr, |
| 1396 | &dev_attr_active_slave.attr, |
| 1397 | &dev_attr_mii_status.attr, |
| 1398 | &dev_attr_ad_aggregator.attr, |
| 1399 | &dev_attr_ad_num_ports.attr, |
| 1400 | &dev_attr_ad_actor_key.attr, |
| 1401 | &dev_attr_ad_partner_key.attr, |
| 1402 | &dev_attr_ad_partner_mac.attr, |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1403 | NULL, |
| 1404 | }; |
| 1405 | |
| 1406 | static struct attribute_group bonding_group = { |
| 1407 | .name = "bonding", |
| 1408 | .attrs = per_bond_attrs, |
| 1409 | }; |
| 1410 | |
| 1411 | /* |
| 1412 | * Initialize sysfs. This sets up the bonding_masters file in |
| 1413 | * /sys/class/net. |
| 1414 | */ |
| 1415 | int bond_create_sysfs(void) |
| 1416 | { |
| 1417 | int ret = 0; |
| 1418 | struct bonding *firstbond; |
| 1419 | |
| 1420 | init_rwsem(&bonding_rwsem); |
| 1421 | |
| 1422 | /* get the netdev class pointer */ |
| 1423 | firstbond = container_of(bond_dev_list.next, struct bonding, bond_list); |
| 1424 | if (!firstbond) |
| 1425 | return -ENODEV; |
| 1426 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1427 | netdev_class = firstbond->dev->dev.class; |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1428 | if (!netdev_class) |
| 1429 | return -ENODEV; |
| 1430 | |
| 1431 | ret = class_create_file(netdev_class, &class_attr_bonding_masters); |
Jay Vosburgh | 877cbd3 | 2007-01-19 18:15:47 -0800 | [diff] [blame] | 1432 | /* |
| 1433 | * Permit multiple loads of the module by ignoring failures to |
| 1434 | * create the bonding_masters sysfs file. Bonding devices |
| 1435 | * created by second or subsequent loads of the module will |
| 1436 | * not be listed in, or controllable by, bonding_masters, but |
| 1437 | * will have the usual "bonding" sysfs directory. |
| 1438 | * |
| 1439 | * This is done to preserve backwards compatibility for |
| 1440 | * initscripts/sysconfig, which load bonding multiple times to |
| 1441 | * configure multiple bonding devices. |
| 1442 | */ |
| 1443 | if (ret == -EEXIST) { |
| 1444 | netdev_class = NULL; |
| 1445 | return 0; |
| 1446 | } |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1447 | |
| 1448 | return ret; |
| 1449 | |
| 1450 | } |
| 1451 | |
| 1452 | /* |
| 1453 | * Remove /sys/class/net/bonding_masters. |
| 1454 | */ |
| 1455 | void bond_destroy_sysfs(void) |
| 1456 | { |
| 1457 | if (netdev_class) |
| 1458 | class_remove_file(netdev_class, &class_attr_bonding_masters); |
| 1459 | } |
| 1460 | |
| 1461 | /* |
| 1462 | * Initialize sysfs for each bond. This sets up and registers |
| 1463 | * the 'bondctl' directory for each individual bond under /sys/class/net. |
| 1464 | */ |
| 1465 | int bond_create_sysfs_entry(struct bonding *bond) |
| 1466 | { |
| 1467 | struct net_device *dev = bond->dev; |
| 1468 | int err; |
| 1469 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1470 | err = sysfs_create_group(&(dev->dev.kobj), &bonding_group); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1471 | if (err) { |
| 1472 | printk(KERN_EMERG "eek! didn't create group!\n"); |
| 1473 | } |
| 1474 | |
| 1475 | if (expected_refcount < 1) |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1476 | expected_refcount = atomic_read(&bond->dev->dev.kobj.kref.refcount); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1477 | |
| 1478 | return err; |
| 1479 | } |
| 1480 | /* |
| 1481 | * Remove sysfs entries for each bond. |
| 1482 | */ |
| 1483 | void bond_destroy_sysfs_entry(struct bonding *bond) |
| 1484 | { |
| 1485 | struct net_device *dev = bond->dev; |
| 1486 | |
Greg Kroah-Hartman | 43cb76d | 2002-04-09 12:14:34 -0700 | [diff] [blame] | 1487 | sysfs_remove_group(&(dev->dev.kobj), &bonding_group); |
Mitch Williams | b76cdba | 2005-11-09 10:36:41 -0800 | [diff] [blame] | 1488 | } |
| 1489 | |