linux/drivers/net/bonding/bond_sysfs.c
Jarod Wilson c8086f6d88 bonding: make mii_status sysfs node consistent
The spew in /proc/net/bonding/bond0 uses netif_carrier_ok() to determine
mii_status, while /sys/class/net/bond0/bonding/mii_status looks at
curr_active_slave, which doesn't actually seem to be set sometimes when
the bond actually is up. A mode 4 bond configured via ifcfg-foo files on a
Red Hat Enterprise Linux system, after boot, comes up clean and
functional, but the sysfs node shows mii_status of down, while proc shows
up. A simple enough fix here seems to be to use the same method for
determining up or down in both places, and I'd opt for the one that seems
to match reality.

CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <gospo@cumulusnetworks.com>
CC: netdev@vger.kernel.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-11 17:14:42 -05:00

816 lines
23 KiB
C

/*
* Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/sched.h>
#include <linux/fs.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/netdevice.h>
#include <linux/inetdevice.h>
#include <linux/in.h>
#include <linux/sysfs.h>
#include <linux/ctype.h>
#include <linux/inet.h>
#include <linux/rtnetlink.h>
#include <linux/etherdevice.h>
#include <net/net_namespace.h>
#include <net/netns/generic.h>
#include <linux/nsproxy.h>
#include <net/bonding.h>
#define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd))))
/* "show" function for the bond_masters attribute.
* The class parameter is ignored.
*/
static ssize_t bonding_show_bonds(struct class *cls,
struct class_attribute *attr,
char *buf)
{
struct bond_net *bn =
container_of(attr, struct bond_net, class_attr_bonding_masters);
int res = 0;
struct bonding *bond;
rtnl_lock();
list_for_each_entry(bond, &bn->dev_list, bond_list) {
if (res > (PAGE_SIZE - IFNAMSIZ)) {
/* not enough space for another interface name */
if ((PAGE_SIZE - res) > 10)
res = PAGE_SIZE - 10;
res += sprintf(buf + res, "++more++ ");
break;
}
res += sprintf(buf + res, "%s ", bond->dev->name);
}
if (res)
buf[res-1] = '\n'; /* eat the leftover space */
rtnl_unlock();
return res;
}
static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname)
{
struct bonding *bond;
list_for_each_entry(bond, &bn->dev_list, bond_list) {
if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0)
return bond->dev;
}
return NULL;
}
/* "store" function for the bond_masters attribute. This is what
* creates and deletes entire bonds.
*
* The class parameter is ignored.
*/
static ssize_t bonding_store_bonds(struct class *cls,
struct class_attribute *attr,
const char *buffer, size_t count)
{
struct bond_net *bn =
container_of(attr, struct bond_net, class_attr_bonding_masters);
char command[IFNAMSIZ + 1] = {0, };
char *ifname;
int rv, res = count;
sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
ifname = command + 1;
if ((strlen(command) <= 1) ||
!dev_valid_name(ifname))
goto err_no_cmd;
if (command[0] == '+') {
pr_info("%s is being created...\n", ifname);
rv = bond_create(bn->net, ifname);
if (rv) {
if (rv == -EEXIST)
pr_info("%s already exists\n", ifname);
else
pr_info("%s creation failed\n", ifname);
res = rv;
}
} else if (command[0] == '-') {
struct net_device *bond_dev;
rtnl_lock();
bond_dev = bond_get_by_name(bn, ifname);
if (bond_dev) {
pr_info("%s is being deleted...\n", ifname);
unregister_netdevice(bond_dev);
} else {
pr_err("unable to delete non-existent %s\n", ifname);
res = -ENODEV;
}
rtnl_unlock();
} else
goto err_no_cmd;
/* Always return either count or an error. If you return 0, you'll
* get called forever, which is bad.
*/
return res;
err_no_cmd:
pr_err("no command found in bonding_masters - use +ifname or -ifname\n");
return -EPERM;
}
/* class attribute for bond_masters file. This ends up in /sys/class/net */
static const struct class_attribute class_attr_bonding_masters = {
.attr = {
.name = "bonding_masters",
.mode = S_IWUSR | S_IRUGO,
},
.show = bonding_show_bonds,
.store = bonding_store_bonds,
};
/* Generic "store" method for bonding sysfs option setting */
static ssize_t bonding_sysfs_store_option(struct device *d,
struct device_attribute *attr,
const char *buffer, size_t count)
{
struct bonding *bond = to_bond(d);
const struct bond_option *opt;
int ret;
opt = bond_opt_get_by_name(attr->attr.name);
if (WARN_ON(!opt))
return -ENOENT;
ret = bond_opt_tryset_rtnl(bond, opt->id, (char *)buffer);
if (!ret)
ret = count;
return ret;
}
/* Show the slaves in the current bond. */
static ssize_t bonding_show_slaves(struct device *d,
struct device_attribute *attr, char *buf)
{
struct bonding *bond = to_bond(d);
struct list_head *iter;
struct slave *slave;
int res = 0;
if (!rtnl_trylock())
return restart_syscall();
bond_for_each_slave(bond, slave, iter) {
if (res > (PAGE_SIZE - IFNAMSIZ)) {
/* not enough space for another interface name */
if ((PAGE_SIZE - res) > 10)
res = PAGE_SIZE - 10;
res += sprintf(buf + res, "++more++ ");
break;
}
res += sprintf(buf + res, "%s ", slave->dev->name);
}
rtnl_unlock();
if (res)
buf[res-1] = '\n'; /* eat the leftover space */
return res;
}
static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves,
bonding_sysfs_store_option);
/* Show the bonding mode. */
static ssize_t bonding_show_mode(struct device *d,
struct device_attribute *attr, char *buf)
{
struct bonding *bond = to_bond(d);
const struct bond_opt_value *val;
val = bond_opt_get_val(BOND_OPT_MODE, BOND_MODE(bond));
return sprintf(buf, "%s %d\n", val->string, BOND_MODE(bond));
}
static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
bonding_show_mode, bonding_sysfs_store_option);
/* Show the bonding transmit hash method. */
static ssize_t bonding_show_xmit_hash(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
const struct bond_opt_value *val;
val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy);
return sprintf(buf, "%s %d\n", val->string, bond->params.xmit_policy);
}
static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR,
bonding_show_xmit_hash, bonding_sysfs_store_option);
/* Show arp_validate. */
static ssize_t bonding_show_arp_validate(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
const struct bond_opt_value *val;
val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE,
bond->params.arp_validate);
return sprintf(buf, "%s %d\n", val->string, bond->params.arp_validate);
}
static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate,
bonding_sysfs_store_option);
/* Show arp_all_targets. */
static ssize_t bonding_show_arp_all_targets(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
const struct bond_opt_value *val;
val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS,
bond->params.arp_all_targets);
return sprintf(buf, "%s %d\n",
val->string, bond->params.arp_all_targets);
}
static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR,
bonding_show_arp_all_targets, bonding_sysfs_store_option);
/* Show fail_over_mac. */
static ssize_t bonding_show_fail_over_mac(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
const struct bond_opt_value *val;
val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC,
bond->params.fail_over_mac);
return sprintf(buf, "%s %d\n", val->string, bond->params.fail_over_mac);
}
static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR,
bonding_show_fail_over_mac, bonding_sysfs_store_option);
/* Show the arp timer interval. */
static ssize_t bonding_show_arp_interval(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.arp_interval);
}
static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR,
bonding_show_arp_interval, bonding_sysfs_store_option);
/* Show the arp targets. */
static ssize_t bonding_show_arp_targets(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
int i, res = 0;
for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
if (bond->params.arp_targets[i])
res += sprintf(buf + res, "%pI4 ",
&bond->params.arp_targets[i]);
}
if (res)
buf[res-1] = '\n'; /* eat the leftover space */
return res;
}
static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR,
bonding_show_arp_targets, bonding_sysfs_store_option);
/* Show the up and down delays. */
static ssize_t bonding_show_downdelay(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon);
}
static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR,
bonding_show_downdelay, bonding_sysfs_store_option);
static ssize_t bonding_show_updelay(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon);
}
static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR,
bonding_show_updelay, bonding_sysfs_store_option);
/* Show the LACP interval. */
static ssize_t bonding_show_lacp(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
const struct bond_opt_value *val;
val = bond_opt_get_val(BOND_OPT_LACP_RATE, bond->params.lacp_fast);
return sprintf(buf, "%s %d\n", val->string, bond->params.lacp_fast);
}
static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR,
bonding_show_lacp, bonding_sysfs_store_option);
static ssize_t bonding_show_min_links(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%u\n", bond->params.min_links);
}
static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR,
bonding_show_min_links, bonding_sysfs_store_option);
static ssize_t bonding_show_ad_select(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
const struct bond_opt_value *val;
val = bond_opt_get_val(BOND_OPT_AD_SELECT, bond->params.ad_select);
return sprintf(buf, "%s %d\n", val->string, bond->params.ad_select);
}
static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR,
bonding_show_ad_select, bonding_sysfs_store_option);
/* Show the number of peer notifications to send after a failover event. */
static ssize_t bonding_show_num_peer_notif(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.num_peer_notif);
}
static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR,
bonding_show_num_peer_notif, bonding_sysfs_store_option);
static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR,
bonding_show_num_peer_notif, bonding_sysfs_store_option);
/* Show the MII monitor interval. */
static ssize_t bonding_show_miimon(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.miimon);
}
static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR,
bonding_show_miimon, bonding_sysfs_store_option);
/* Show the primary slave. */
static ssize_t bonding_show_primary(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
struct slave *primary;
int count = 0;
rcu_read_lock();
primary = rcu_dereference(bond->primary_slave);
if (primary)
count = sprintf(buf, "%s\n", primary->dev->name);
rcu_read_unlock();
return count;
}
static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR,
bonding_show_primary, bonding_sysfs_store_option);
/* Show the primary_reselect flag. */
static ssize_t bonding_show_primary_reselect(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
const struct bond_opt_value *val;
val = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT,
bond->params.primary_reselect);
return sprintf(buf, "%s %d\n",
val->string, bond->params.primary_reselect);
}
static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR,
bonding_show_primary_reselect, bonding_sysfs_store_option);
/* Show the use_carrier flag. */
static ssize_t bonding_show_carrier(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.use_carrier);
}
static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR,
bonding_show_carrier, bonding_sysfs_store_option);
/* Show currently active_slave. */
static ssize_t bonding_show_active_slave(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
struct net_device *slave_dev;
int count = 0;
rcu_read_lock();
slave_dev = bond_option_active_slave_get_rcu(bond);
if (slave_dev)
count = sprintf(buf, "%s\n", slave_dev->name);
rcu_read_unlock();
return count;
}
static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR,
bonding_show_active_slave, bonding_sysfs_store_option);
/* Show link status of the bond interface. */
static ssize_t bonding_show_mii_status(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
bool active = netif_carrier_ok(bond->dev);
return sprintf(buf, "%s\n", active ? "up" : "down");
}
static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL);
/* Show current 802.3ad aggregator ID. */
static ssize_t bonding_show_ad_aggregator(struct device *d,
struct device_attribute *attr,
char *buf)
{
int count = 0;
struct bonding *bond = to_bond(d);
if (BOND_MODE(bond) == BOND_MODE_8023AD) {
struct ad_info ad_info;
count = sprintf(buf, "%d\n",
bond_3ad_get_active_agg_info(bond, &ad_info)
? 0 : ad_info.aggregator_id);
}
return count;
}
static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL);
/* Show number of active 802.3ad ports. */
static ssize_t bonding_show_ad_num_ports(struct device *d,
struct device_attribute *attr,
char *buf)
{
int count = 0;
struct bonding *bond = to_bond(d);
if (BOND_MODE(bond) == BOND_MODE_8023AD) {
struct ad_info ad_info;
count = sprintf(buf, "%d\n",
bond_3ad_get_active_agg_info(bond, &ad_info)
? 0 : ad_info.ports);
}
return count;
}
static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL);
/* Show current 802.3ad actor key. */
static ssize_t bonding_show_ad_actor_key(struct device *d,
struct device_attribute *attr,
char *buf)
{
int count = 0;
struct bonding *bond = to_bond(d);
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) {
struct ad_info ad_info;
count = sprintf(buf, "%d\n",
bond_3ad_get_active_agg_info(bond, &ad_info)
? 0 : ad_info.actor_key);
}
return count;
}
static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL);
/* Show current 802.3ad partner key. */
static ssize_t bonding_show_ad_partner_key(struct device *d,
struct device_attribute *attr,
char *buf)
{
int count = 0;
struct bonding *bond = to_bond(d);
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) {
struct ad_info ad_info;
count = sprintf(buf, "%d\n",
bond_3ad_get_active_agg_info(bond, &ad_info)
? 0 : ad_info.partner_key);
}
return count;
}
static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL);
/* Show current 802.3ad partner mac. */
static ssize_t bonding_show_ad_partner_mac(struct device *d,
struct device_attribute *attr,
char *buf)
{
int count = 0;
struct bonding *bond = to_bond(d);
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) {
struct ad_info ad_info;
if (!bond_3ad_get_active_agg_info(bond, &ad_info))
count = sprintf(buf, "%pM\n", ad_info.partner_system);
}
return count;
}
static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL);
/* Show the queue_ids of the slaves in the current bond. */
static ssize_t bonding_show_queue_id(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
struct list_head *iter;
struct slave *slave;
int res = 0;
if (!rtnl_trylock())
return restart_syscall();
bond_for_each_slave(bond, slave, iter) {
if (res > (PAGE_SIZE - IFNAMSIZ - 6)) {
/* not enough space for another interface_name:queue_id pair */
if ((PAGE_SIZE - res) > 10)
res = PAGE_SIZE - 10;
res += sprintf(buf + res, "++more++ ");
break;
}
res += sprintf(buf + res, "%s:%d ",
slave->dev->name, slave->queue_id);
}
if (res)
buf[res-1] = '\n'; /* eat the leftover space */
rtnl_unlock();
return res;
}
static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id,
bonding_sysfs_store_option);
/* Show the all_slaves_active flag. */
static ssize_t bonding_show_slaves_active(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.all_slaves_active);
}
static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR,
bonding_show_slaves_active, bonding_sysfs_store_option);
/* Show the number of IGMP membership reports to send on link failure */
static ssize_t bonding_show_resend_igmp(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.resend_igmp);
}
static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR,
bonding_show_resend_igmp, bonding_sysfs_store_option);
static ssize_t bonding_show_lp_interval(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.lp_interval);
}
static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR,
bonding_show_lp_interval, bonding_sysfs_store_option);
static ssize_t bonding_show_tlb_dynamic_lb(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
return sprintf(buf, "%d\n", bond->params.tlb_dynamic_lb);
}
static DEVICE_ATTR(tlb_dynamic_lb, S_IRUGO | S_IWUSR,
bonding_show_tlb_dynamic_lb, bonding_sysfs_store_option);
static ssize_t bonding_show_packets_per_slave(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
unsigned int packets_per_slave = bond->params.packets_per_slave;
return sprintf(buf, "%u\n", packets_per_slave);
}
static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR,
bonding_show_packets_per_slave, bonding_sysfs_store_option);
static ssize_t bonding_show_ad_actor_sys_prio(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN))
return sprintf(buf, "%hu\n", bond->params.ad_actor_sys_prio);
return 0;
}
static DEVICE_ATTR(ad_actor_sys_prio, S_IRUGO | S_IWUSR,
bonding_show_ad_actor_sys_prio, bonding_sysfs_store_option);
static ssize_t bonding_show_ad_actor_system(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN))
return sprintf(buf, "%pM\n", bond->params.ad_actor_system);
return 0;
}
static DEVICE_ATTR(ad_actor_system, S_IRUGO | S_IWUSR,
bonding_show_ad_actor_system, bonding_sysfs_store_option);
static ssize_t bonding_show_ad_user_port_key(struct device *d,
struct device_attribute *attr,
char *buf)
{
struct bonding *bond = to_bond(d);
if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN))
return sprintf(buf, "%hu\n", bond->params.ad_user_port_key);
return 0;
}
static DEVICE_ATTR(ad_user_port_key, S_IRUGO | S_IWUSR,
bonding_show_ad_user_port_key, bonding_sysfs_store_option);
static struct attribute *per_bond_attrs[] = {
&dev_attr_slaves.attr,
&dev_attr_mode.attr,
&dev_attr_fail_over_mac.attr,
&dev_attr_arp_validate.attr,
&dev_attr_arp_all_targets.attr,
&dev_attr_arp_interval.attr,
&dev_attr_arp_ip_target.attr,
&dev_attr_downdelay.attr,
&dev_attr_updelay.attr,
&dev_attr_lacp_rate.attr,
&dev_attr_ad_select.attr,
&dev_attr_xmit_hash_policy.attr,
&dev_attr_num_grat_arp.attr,
&dev_attr_num_unsol_na.attr,
&dev_attr_miimon.attr,
&dev_attr_primary.attr,
&dev_attr_primary_reselect.attr,
&dev_attr_use_carrier.attr,
&dev_attr_active_slave.attr,
&dev_attr_mii_status.attr,
&dev_attr_ad_aggregator.attr,
&dev_attr_ad_num_ports.attr,
&dev_attr_ad_actor_key.attr,
&dev_attr_ad_partner_key.attr,
&dev_attr_ad_partner_mac.attr,
&dev_attr_queue_id.attr,
&dev_attr_all_slaves_active.attr,
&dev_attr_resend_igmp.attr,
&dev_attr_min_links.attr,
&dev_attr_lp_interval.attr,
&dev_attr_packets_per_slave.attr,
&dev_attr_tlb_dynamic_lb.attr,
&dev_attr_ad_actor_sys_prio.attr,
&dev_attr_ad_actor_system.attr,
&dev_attr_ad_user_port_key.attr,
NULL,
};
static struct attribute_group bonding_group = {
.name = "bonding",
.attrs = per_bond_attrs,
};
/* Initialize sysfs. This sets up the bonding_masters file in
* /sys/class/net.
*/
int bond_create_sysfs(struct bond_net *bn)
{
int ret;
bn->class_attr_bonding_masters = class_attr_bonding_masters;
sysfs_attr_init(&bn->class_attr_bonding_masters.attr);
ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters,
bn->net);
/* Permit multiple loads of the module by ignoring failures to
* create the bonding_masters sysfs file. Bonding devices
* created by second or subsequent loads of the module will
* not be listed in, or controllable by, bonding_masters, but
* will have the usual "bonding" sysfs directory.
*
* This is done to preserve backwards compatibility for
* initscripts/sysconfig, which load bonding multiple times to
* configure multiple bonding devices.
*/
if (ret == -EEXIST) {
/* Is someone being kinky and naming a device bonding_master? */
if (__dev_get_by_name(bn->net,
class_attr_bonding_masters.attr.name))
pr_err("network device named %s already exists in sysfs\n",
class_attr_bonding_masters.attr.name);
ret = 0;
}
return ret;
}
/* Remove /sys/class/net/bonding_masters. */
void bond_destroy_sysfs(struct bond_net *bn)
{
netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net);
}
/* Initialize sysfs for each bond. This sets up and registers
* the 'bondctl' directory for each individual bond under /sys/class/net.
*/
void bond_prepare_sysfs_group(struct bonding *bond)
{
bond->dev->sysfs_groups[0] = &bonding_group;
}