1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/* 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 "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, "UNKONWN\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 (slave->bond->params.mode == 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), "slave");
if (err)
return err;
for (a = slave_attrs; *a; ++a) {
err = sysfs_create_file(&slave->kobj, &((*a)->attr));
if (err) {
kobject_del(&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_del(&slave->kobj);
}
|
