Commit | Line | Data |
---|---|---|
07699f9a | 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 | ||
1ef8019b | 15 | #include <net/bonding.h> |
07699f9a | 16 | |
17 | struct slave_attribute { | |
18 | struct attribute attr; | |
19 | ssize_t (*show)(struct slave *, char *); | |
20 | }; | |
21 | ||
22 | #define SLAVE_ATTR(_name, _mode, _show) \ | |
23 | const struct slave_attribute slave_attr_##_name = { \ | |
24 | .attr = {.name = __stringify(_name), \ | |
25 | .mode = _mode }, \ | |
26 | .show = _show, \ | |
27 | }; | |
d61e4038 JP |
28 | #define SLAVE_ATTR_RO(_name) \ |
29 | SLAVE_ATTR(_name, 0444, _name##_show) | |
07699f9a | 30 | |
31 | static 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: | |
9b13494c | 39 | return sprintf(buf, "UNKNOWN\n"); |
07699f9a | 40 | } |
41 | } | |
42 | static SLAVE_ATTR_RO(state); | |
43 | ||
44 | static ssize_t mii_status_show(struct slave *slave, char *buf) | |
45 | { | |
46 | return sprintf(buf, "%s\n", bond_slave_link_status(slave->link)); | |
47 | } | |
48 | static SLAVE_ATTR_RO(mii_status); | |
49 | ||
50 | static ssize_t link_failure_count_show(struct slave *slave, char *buf) | |
51 | { | |
52 | return sprintf(buf, "%d\n", slave->link_failure_count); | |
53 | } | |
54 | static SLAVE_ATTR_RO(link_failure_count); | |
55 | ||
56 | static ssize_t perm_hwaddr_show(struct slave *slave, char *buf) | |
57 | { | |
18bebc6d KK |
58 | return sprintf(buf, "%*phC\n", |
59 | slave->dev->addr_len, | |
60 | slave->perm_hwaddr); | |
07699f9a | 61 | } |
62 | static SLAVE_ATTR_RO(perm_hwaddr); | |
63 | ||
64 | static ssize_t queue_id_show(struct slave *slave, char *buf) | |
65 | { | |
66 | return sprintf(buf, "%d\n", slave->queue_id); | |
67 | } | |
68 | static SLAVE_ATTR_RO(queue_id); | |
69 | ||
70 | static ssize_t ad_aggregator_id_show(struct slave *slave, char *buf) | |
71 | { | |
72 | const struct aggregator *agg; | |
73 | ||
01844098 | 74 | if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { |
3fdddd85 | 75 | agg = SLAVE_AD_INFO(slave)->port.aggregator; |
07699f9a | 76 | if (agg) |
77 | return sprintf(buf, "%d\n", | |
78 | agg->aggregator_identifier); | |
79 | } | |
80 | ||
81 | return sprintf(buf, "N/A\n"); | |
82 | } | |
83 | static SLAVE_ATTR_RO(ad_aggregator_id); | |
84 | ||
254cb6db NA |
85 | static ssize_t ad_actor_oper_port_state_show(struct slave *slave, char *buf) |
86 | { | |
87 | const struct port *ad_port; | |
88 | ||
89 | if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { | |
90 | ad_port = &SLAVE_AD_INFO(slave)->port; | |
91 | if (ad_port->aggregator) | |
92 | return sprintf(buf, "%u\n", | |
93 | ad_port->actor_oper_port_state); | |
94 | } | |
95 | ||
96 | return sprintf(buf, "N/A\n"); | |
97 | } | |
98 | static SLAVE_ATTR_RO(ad_actor_oper_port_state); | |
99 | ||
46ea297e NA |
100 | static ssize_t ad_partner_oper_port_state_show(struct slave *slave, char *buf) |
101 | { | |
102 | const struct port *ad_port; | |
103 | ||
104 | if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { | |
105 | ad_port = &SLAVE_AD_INFO(slave)->port; | |
106 | if (ad_port->aggregator) | |
107 | return sprintf(buf, "%u\n", | |
108 | ad_port->partner_oper.port_state); | |
109 | } | |
110 | ||
111 | return sprintf(buf, "N/A\n"); | |
112 | } | |
113 | static SLAVE_ATTR_RO(ad_partner_oper_port_state); | |
114 | ||
07699f9a | 115 | static const struct slave_attribute *slave_attrs[] = { |
116 | &slave_attr_state, | |
117 | &slave_attr_mii_status, | |
118 | &slave_attr_link_failure_count, | |
119 | &slave_attr_perm_hwaddr, | |
120 | &slave_attr_queue_id, | |
121 | &slave_attr_ad_aggregator_id, | |
254cb6db | 122 | &slave_attr_ad_actor_oper_port_state, |
46ea297e | 123 | &slave_attr_ad_partner_oper_port_state, |
07699f9a | 124 | NULL |
125 | }; | |
126 | ||
127 | #define to_slave_attr(_at) container_of(_at, struct slave_attribute, attr) | |
128 | #define to_slave(obj) container_of(obj, struct slave, kobj) | |
129 | ||
130 | static ssize_t slave_show(struct kobject *kobj, | |
131 | struct attribute *attr, char *buf) | |
132 | { | |
133 | struct slave_attribute *slave_attr = to_slave_attr(attr); | |
134 | struct slave *slave = to_slave(kobj); | |
135 | ||
136 | return slave_attr->show(slave, buf); | |
137 | } | |
138 | ||
8d783163 | 139 | static const struct sysfs_ops slave_sysfs_ops = { |
07699f9a | 140 | .show = slave_show, |
141 | }; | |
142 | ||
143 | static struct kobj_type slave_ktype = { | |
144 | #ifdef CONFIG_SYSFS | |
145 | .sysfs_ops = &slave_sysfs_ops, | |
146 | #endif | |
147 | }; | |
148 | ||
149 | int bond_sysfs_slave_add(struct slave *slave) | |
150 | { | |
151 | const struct slave_attribute **a; | |
152 | int err; | |
153 | ||
154 | err = kobject_init_and_add(&slave->kobj, &slave_ktype, | |
0a9099f8 | 155 | &(slave->dev->dev.kobj), "bonding_slave"); |
07699f9a | 156 | if (err) |
157 | return err; | |
158 | ||
159 | for (a = slave_attrs; *a; ++a) { | |
160 | err = sysfs_create_file(&slave->kobj, &((*a)->attr)); | |
161 | if (err) { | |
7afcaec4 | 162 | kobject_put(&slave->kobj); |
07699f9a | 163 | return err; |
164 | } | |
165 | } | |
166 | ||
167 | return 0; | |
168 | } | |
169 | ||
170 | void bond_sysfs_slave_del(struct slave *slave) | |
171 | { | |
172 | const struct slave_attribute **a; | |
173 | ||
174 | for (a = slave_attrs; *a; ++a) | |
175 | sysfs_remove_file(&slave->kobj, &((*a)->attr)); | |
176 | ||
7afcaec4 | 177 | kobject_put(&slave->kobj); |
07699f9a | 178 | } |