mirror of
https://github.com/torvalds/linux.git
synced 2024-12-30 14:52:05 +00:00
1ef8019be8
This ways drivers like cxgb4 don't need to do ugly relative includes. Reported-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
145 lines
3.4 KiB
C
145 lines
3.4 KiB
C
/* Sysfs attributes of bond slaves
|
|
*
|
|
* Copyright (c) 2014 Scott Feldman <sfeldma@cumulusnetworks.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/capability.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/netdevice.h>
|
|
|
|
#include <net/bonding.h>
|
|
|
|
struct slave_attribute {
|
|
struct attribute attr;
|
|
ssize_t (*show)(struct slave *, char *);
|
|
};
|
|
|
|
#define SLAVE_ATTR(_name, _mode, _show) \
|
|
const struct slave_attribute slave_attr_##_name = { \
|
|
.attr = {.name = __stringify(_name), \
|
|
.mode = _mode }, \
|
|
.show = _show, \
|
|
};
|
|
#define SLAVE_ATTR_RO(_name) \
|
|
SLAVE_ATTR(_name, S_IRUGO, _name##_show)
|
|
|
|
static ssize_t state_show(struct slave *slave, char *buf)
|
|
{
|
|
switch (bond_slave_state(slave)) {
|
|
case BOND_STATE_ACTIVE:
|
|
return sprintf(buf, "active\n");
|
|
case BOND_STATE_BACKUP:
|
|
return sprintf(buf, "backup\n");
|
|
default:
|
|
return sprintf(buf, "UNKNOWN\n");
|
|
}
|
|
}
|
|
static SLAVE_ATTR_RO(state);
|
|
|
|
static ssize_t mii_status_show(struct slave *slave, char *buf)
|
|
{
|
|
return sprintf(buf, "%s\n", bond_slave_link_status(slave->link));
|
|
}
|
|
static SLAVE_ATTR_RO(mii_status);
|
|
|
|
static ssize_t link_failure_count_show(struct slave *slave, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", slave->link_failure_count);
|
|
}
|
|
static SLAVE_ATTR_RO(link_failure_count);
|
|
|
|
static ssize_t perm_hwaddr_show(struct slave *slave, char *buf)
|
|
{
|
|
return sprintf(buf, "%pM\n", slave->perm_hwaddr);
|
|
}
|
|
static SLAVE_ATTR_RO(perm_hwaddr);
|
|
|
|
static ssize_t queue_id_show(struct slave *slave, char *buf)
|
|
{
|
|
return sprintf(buf, "%d\n", slave->queue_id);
|
|
}
|
|
static SLAVE_ATTR_RO(queue_id);
|
|
|
|
static ssize_t ad_aggregator_id_show(struct slave *slave, char *buf)
|
|
{
|
|
const struct aggregator *agg;
|
|
|
|
if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
|
|
agg = SLAVE_AD_INFO(slave)->port.aggregator;
|
|
if (agg)
|
|
return sprintf(buf, "%d\n",
|
|
agg->aggregator_identifier);
|
|
}
|
|
|
|
return sprintf(buf, "N/A\n");
|
|
}
|
|
static SLAVE_ATTR_RO(ad_aggregator_id);
|
|
|
|
static const struct slave_attribute *slave_attrs[] = {
|
|
&slave_attr_state,
|
|
&slave_attr_mii_status,
|
|
&slave_attr_link_failure_count,
|
|
&slave_attr_perm_hwaddr,
|
|
&slave_attr_queue_id,
|
|
&slave_attr_ad_aggregator_id,
|
|
NULL
|
|
};
|
|
|
|
#define to_slave_attr(_at) container_of(_at, struct slave_attribute, attr)
|
|
#define to_slave(obj) container_of(obj, struct slave, kobj)
|
|
|
|
static ssize_t slave_show(struct kobject *kobj,
|
|
struct attribute *attr, char *buf)
|
|
{
|
|
struct slave_attribute *slave_attr = to_slave_attr(attr);
|
|
struct slave *slave = to_slave(kobj);
|
|
|
|
return slave_attr->show(slave, buf);
|
|
}
|
|
|
|
static const struct sysfs_ops slave_sysfs_ops = {
|
|
.show = slave_show,
|
|
};
|
|
|
|
static struct kobj_type slave_ktype = {
|
|
#ifdef CONFIG_SYSFS
|
|
.sysfs_ops = &slave_sysfs_ops,
|
|
#endif
|
|
};
|
|
|
|
int bond_sysfs_slave_add(struct slave *slave)
|
|
{
|
|
const struct slave_attribute **a;
|
|
int err;
|
|
|
|
err = kobject_init_and_add(&slave->kobj, &slave_ktype,
|
|
&(slave->dev->dev.kobj), "bonding_slave");
|
|
if (err)
|
|
return err;
|
|
|
|
for (a = slave_attrs; *a; ++a) {
|
|
err = sysfs_create_file(&slave->kobj, &((*a)->attr));
|
|
if (err) {
|
|
kobject_put(&slave->kobj);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void bond_sysfs_slave_del(struct slave *slave)
|
|
{
|
|
const struct slave_attribute **a;
|
|
|
|
for (a = slave_attrs; *a; ++a)
|
|
sysfs_remove_file(&slave->kobj, &((*a)->attr));
|
|
|
|
kobject_put(&slave->kobj);
|
|
}
|