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1// SPDX-License-Identifier: GPL-2.0-or-later
2/* Sysfs attributes of bond slaves
3 *
4 * Copyright (c) 2014 Scott Feldman <sfeldma@cumulusnetworks.com>
5 */
6
7#include <linux/capability.h>
8#include <linux/kernel.h>
9#include <linux/netdevice.h>
10
11#include <net/bonding.h>
12
13struct slave_attribute {
14 struct attribute attr;
15 ssize_t (*show)(struct slave *, char *);
16};
17
18#define SLAVE_ATTR_RO(_name) \
19const struct slave_attribute slave_attr_##_name = __ATTR_RO(_name)
20
21static ssize_t state_show(struct slave *slave, char *buf)
22{
23 switch (bond_slave_state(slave)) {
24 case BOND_STATE_ACTIVE:
25 return sysfs_emit(buf, "active\n");
26 case BOND_STATE_BACKUP:
27 return sysfs_emit(buf, "backup\n");
28 default:
29 return sysfs_emit(buf, "UNKNOWN\n");
30 }
31}
32static SLAVE_ATTR_RO(state);
33
34static ssize_t mii_status_show(struct slave *slave, char *buf)
35{
36 return sysfs_emit(buf, "%s\n", bond_slave_link_status(slave->link));
37}
38static SLAVE_ATTR_RO(mii_status);
39
40static ssize_t link_failure_count_show(struct slave *slave, char *buf)
41{
42 return sysfs_emit(buf, "%d\n", slave->link_failure_count);
43}
44static SLAVE_ATTR_RO(link_failure_count);
45
46static ssize_t perm_hwaddr_show(struct slave *slave, char *buf)
47{
48 return sysfs_emit(buf, "%*phC\n",
49 slave->dev->addr_len,
50 slave->perm_hwaddr);
51}
52static SLAVE_ATTR_RO(perm_hwaddr);
53
54static ssize_t queue_id_show(struct slave *slave, char *buf)
55{
56 return sysfs_emit(buf, "%d\n", slave->queue_id);
57}
58static SLAVE_ATTR_RO(queue_id);
59
60static ssize_t ad_aggregator_id_show(struct slave *slave, char *buf)
61{
62 const struct aggregator *agg;
63
64 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
65 agg = SLAVE_AD_INFO(slave)->port.aggregator;
66 if (agg)
67 return sysfs_emit(buf, "%d\n",
68 agg->aggregator_identifier);
69 }
70
71 return sysfs_emit(buf, "N/A\n");
72}
73static SLAVE_ATTR_RO(ad_aggregator_id);
74
75static ssize_t ad_actor_oper_port_state_show(struct slave *slave, char *buf)
76{
77 const struct port *ad_port;
78
79 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
80 ad_port = &SLAVE_AD_INFO(slave)->port;
81 if (ad_port->aggregator)
82 return sysfs_emit(buf, "%u\n",
83 ad_port->actor_oper_port_state);
84 }
85
86 return sysfs_emit(buf, "N/A\n");
87}
88static SLAVE_ATTR_RO(ad_actor_oper_port_state);
89
90static ssize_t ad_partner_oper_port_state_show(struct slave *slave, char *buf)
91{
92 const struct port *ad_port;
93
94 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
95 ad_port = &SLAVE_AD_INFO(slave)->port;
96 if (ad_port->aggregator)
97 return sysfs_emit(buf, "%u\n",
98 ad_port->partner_oper.port_state);
99 }
100
101 return sysfs_emit(buf, "N/A\n");
102}
103static SLAVE_ATTR_RO(ad_partner_oper_port_state);
104
105static const struct attribute *slave_attrs[] = {
106 &slave_attr_state.attr,
107 &slave_attr_mii_status.attr,
108 &slave_attr_link_failure_count.attr,
109 &slave_attr_perm_hwaddr.attr,
110 &slave_attr_queue_id.attr,
111 &slave_attr_ad_aggregator_id.attr,
112 &slave_attr_ad_actor_oper_port_state.attr,
113 &slave_attr_ad_partner_oper_port_state.attr,
114 NULL
115};
116
117#define to_slave_attr(_at) container_of(_at, struct slave_attribute, attr)
118
119static ssize_t slave_show(struct kobject *kobj,
120 struct attribute *attr, char *buf)
121{
122 struct slave_attribute *slave_attr = to_slave_attr(attr);
123 struct slave *slave = to_slave(kobj);
124
125 return slave_attr->show(slave, buf);
126}
127
128const struct sysfs_ops slave_sysfs_ops = {
129 .show = slave_show,
130};
131
132int bond_sysfs_slave_add(struct slave *slave)
133{
134 return sysfs_create_files(&slave->kobj, slave_attrs);
135}
136
137void bond_sysfs_slave_del(struct slave *slave)
138{
139 sysfs_remove_files(&slave->kobj, slave_attrs);
140}
1/* Sysfs attributes of bond slaves
2 *
3 * Copyright (c) 2014 Scott Feldman <sfeldma@cumulusnetworks.com>
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 */
10
11#include <linux/capability.h>
12#include <linux/kernel.h>
13#include <linux/netdevice.h>
14
15#include <net/bonding.h>
16
17struct slave_attribute {
18 struct attribute attr;
19 ssize_t (*show)(struct slave *, char *);
20};
21
22#define SLAVE_ATTR(_name, _mode, _show) \
23const struct slave_attribute slave_attr_##_name = { \
24 .attr = {.name = __stringify(_name), \
25 .mode = _mode }, \
26 .show = _show, \
27};
28#define SLAVE_ATTR_RO(_name) \
29 SLAVE_ATTR(_name, 0444, _name##_show)
30
31static ssize_t state_show(struct slave *slave, char *buf)
32{
33 switch (bond_slave_state(slave)) {
34 case BOND_STATE_ACTIVE:
35 return sprintf(buf, "active\n");
36 case BOND_STATE_BACKUP:
37 return sprintf(buf, "backup\n");
38 default:
39 return sprintf(buf, "UNKNOWN\n");
40 }
41}
42static SLAVE_ATTR_RO(state);
43
44static ssize_t mii_status_show(struct slave *slave, char *buf)
45{
46 return sprintf(buf, "%s\n", bond_slave_link_status(slave->link));
47}
48static SLAVE_ATTR_RO(mii_status);
49
50static ssize_t link_failure_count_show(struct slave *slave, char *buf)
51{
52 return sprintf(buf, "%d\n", slave->link_failure_count);
53}
54static SLAVE_ATTR_RO(link_failure_count);
55
56static ssize_t perm_hwaddr_show(struct slave *slave, char *buf)
57{
58 return sprintf(buf, "%pM\n", slave->perm_hwaddr);
59}
60static SLAVE_ATTR_RO(perm_hwaddr);
61
62static ssize_t queue_id_show(struct slave *slave, char *buf)
63{
64 return sprintf(buf, "%d\n", slave->queue_id);
65}
66static SLAVE_ATTR_RO(queue_id);
67
68static ssize_t ad_aggregator_id_show(struct slave *slave, char *buf)
69{
70 const struct aggregator *agg;
71
72 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
73 agg = SLAVE_AD_INFO(slave)->port.aggregator;
74 if (agg)
75 return sprintf(buf, "%d\n",
76 agg->aggregator_identifier);
77 }
78
79 return sprintf(buf, "N/A\n");
80}
81static SLAVE_ATTR_RO(ad_aggregator_id);
82
83static ssize_t ad_actor_oper_port_state_show(struct slave *slave, char *buf)
84{
85 const struct port *ad_port;
86
87 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
88 ad_port = &SLAVE_AD_INFO(slave)->port;
89 if (ad_port->aggregator)
90 return sprintf(buf, "%u\n",
91 ad_port->actor_oper_port_state);
92 }
93
94 return sprintf(buf, "N/A\n");
95}
96static SLAVE_ATTR_RO(ad_actor_oper_port_state);
97
98static ssize_t ad_partner_oper_port_state_show(struct slave *slave, char *buf)
99{
100 const struct port *ad_port;
101
102 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) {
103 ad_port = &SLAVE_AD_INFO(slave)->port;
104 if (ad_port->aggregator)
105 return sprintf(buf, "%u\n",
106 ad_port->partner_oper.port_state);
107 }
108
109 return sprintf(buf, "N/A\n");
110}
111static SLAVE_ATTR_RO(ad_partner_oper_port_state);
112
113static const struct slave_attribute *slave_attrs[] = {
114 &slave_attr_state,
115 &slave_attr_mii_status,
116 &slave_attr_link_failure_count,
117 &slave_attr_perm_hwaddr,
118 &slave_attr_queue_id,
119 &slave_attr_ad_aggregator_id,
120 &slave_attr_ad_actor_oper_port_state,
121 &slave_attr_ad_partner_oper_port_state,
122 NULL
123};
124
125#define to_slave_attr(_at) container_of(_at, struct slave_attribute, attr)
126#define to_slave(obj) container_of(obj, struct slave, kobj)
127
128static ssize_t slave_show(struct kobject *kobj,
129 struct attribute *attr, char *buf)
130{
131 struct slave_attribute *slave_attr = to_slave_attr(attr);
132 struct slave *slave = to_slave(kobj);
133
134 return slave_attr->show(slave, buf);
135}
136
137static const struct sysfs_ops slave_sysfs_ops = {
138 .show = slave_show,
139};
140
141static struct kobj_type slave_ktype = {
142#ifdef CONFIG_SYSFS
143 .sysfs_ops = &slave_sysfs_ops,
144#endif
145};
146
147int bond_sysfs_slave_add(struct slave *slave)
148{
149 const struct slave_attribute **a;
150 int err;
151
152 err = kobject_init_and_add(&slave->kobj, &slave_ktype,
153 &(slave->dev->dev.kobj), "bonding_slave");
154 if (err)
155 return err;
156
157 for (a = slave_attrs; *a; ++a) {
158 err = sysfs_create_file(&slave->kobj, &((*a)->attr));
159 if (err) {
160 kobject_put(&slave->kobj);
161 return err;
162 }
163 }
164
165 return 0;
166}
167
168void bond_sysfs_slave_del(struct slave *slave)
169{
170 const struct slave_attribute **a;
171
172 for (a = slave_attrs; *a; ++a)
173 sysfs_remove_file(&slave->kobj, &((*a)->attr));
174
175 kobject_put(&slave->kobj);
176}