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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
07699f9a | 2 | /* Sysfs attributes of bond slaves |
3 | * | |
4 | * Copyright (c) 2014 Scott Feldman <sfeldma@cumulusnetworks.com> | |
07699f9a | 5 | */ |
6 | ||
7 | #include <linux/capability.h> | |
8 | #include <linux/kernel.h> | |
9 | #include <linux/netdevice.h> | |
10 | ||
1ef8019b | 11 | #include <net/bonding.h> |
07699f9a | 12 | |
13 | struct slave_attribute { | |
14 | struct attribute attr; | |
15 | ssize_t (*show)(struct slave *, char *); | |
16 | }; | |
17 | ||
18 | #define SLAVE_ATTR(_name, _mode, _show) \ | |
19 | const struct slave_attribute slave_attr_##_name = { \ | |
20 | .attr = {.name = __stringify(_name), \ | |
21 | .mode = _mode }, \ | |
22 | .show = _show, \ | |
23 | }; | |
d61e4038 JP |
24 | #define SLAVE_ATTR_RO(_name) \ |
25 | SLAVE_ATTR(_name, 0444, _name##_show) | |
07699f9a | 26 | |
27 | static ssize_t state_show(struct slave *slave, char *buf) | |
28 | { | |
29 | switch (bond_slave_state(slave)) { | |
30 | case BOND_STATE_ACTIVE: | |
31 | return sprintf(buf, "active\n"); | |
32 | case BOND_STATE_BACKUP: | |
33 | return sprintf(buf, "backup\n"); | |
34 | default: | |
9b13494c | 35 | return sprintf(buf, "UNKNOWN\n"); |
07699f9a | 36 | } |
37 | } | |
38 | static SLAVE_ATTR_RO(state); | |
39 | ||
40 | static ssize_t mii_status_show(struct slave *slave, char *buf) | |
41 | { | |
42 | return sprintf(buf, "%s\n", bond_slave_link_status(slave->link)); | |
43 | } | |
44 | static SLAVE_ATTR_RO(mii_status); | |
45 | ||
46 | static ssize_t link_failure_count_show(struct slave *slave, char *buf) | |
47 | { | |
48 | return sprintf(buf, "%d\n", slave->link_failure_count); | |
49 | } | |
50 | static SLAVE_ATTR_RO(link_failure_count); | |
51 | ||
52 | static ssize_t perm_hwaddr_show(struct slave *slave, char *buf) | |
53 | { | |
18bebc6d KK |
54 | return sprintf(buf, "%*phC\n", |
55 | slave->dev->addr_len, | |
56 | slave->perm_hwaddr); | |
07699f9a | 57 | } |
58 | static SLAVE_ATTR_RO(perm_hwaddr); | |
59 | ||
60 | static ssize_t queue_id_show(struct slave *slave, char *buf) | |
61 | { | |
62 | return sprintf(buf, "%d\n", slave->queue_id); | |
63 | } | |
64 | static SLAVE_ATTR_RO(queue_id); | |
65 | ||
66 | static ssize_t ad_aggregator_id_show(struct slave *slave, char *buf) | |
67 | { | |
68 | const struct aggregator *agg; | |
69 | ||
01844098 | 70 | if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { |
3fdddd85 | 71 | agg = SLAVE_AD_INFO(slave)->port.aggregator; |
07699f9a | 72 | if (agg) |
73 | return sprintf(buf, "%d\n", | |
74 | agg->aggregator_identifier); | |
75 | } | |
76 | ||
77 | return sprintf(buf, "N/A\n"); | |
78 | } | |
79 | static SLAVE_ATTR_RO(ad_aggregator_id); | |
80 | ||
254cb6db NA |
81 | static ssize_t ad_actor_oper_port_state_show(struct slave *slave, char *buf) |
82 | { | |
83 | const struct port *ad_port; | |
84 | ||
85 | if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { | |
86 | ad_port = &SLAVE_AD_INFO(slave)->port; | |
87 | if (ad_port->aggregator) | |
88 | return sprintf(buf, "%u\n", | |
89 | ad_port->actor_oper_port_state); | |
90 | } | |
91 | ||
92 | return sprintf(buf, "N/A\n"); | |
93 | } | |
94 | static SLAVE_ATTR_RO(ad_actor_oper_port_state); | |
95 | ||
46ea297e NA |
96 | static ssize_t ad_partner_oper_port_state_show(struct slave *slave, char *buf) |
97 | { | |
98 | const struct port *ad_port; | |
99 | ||
100 | if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { | |
101 | ad_port = &SLAVE_AD_INFO(slave)->port; | |
102 | if (ad_port->aggregator) | |
103 | return sprintf(buf, "%u\n", | |
104 | ad_port->partner_oper.port_state); | |
105 | } | |
106 | ||
107 | return sprintf(buf, "N/A\n"); | |
108 | } | |
109 | static SLAVE_ATTR_RO(ad_partner_oper_port_state); | |
110 | ||
07699f9a | 111 | static const struct slave_attribute *slave_attrs[] = { |
112 | &slave_attr_state, | |
113 | &slave_attr_mii_status, | |
114 | &slave_attr_link_failure_count, | |
115 | &slave_attr_perm_hwaddr, | |
116 | &slave_attr_queue_id, | |
117 | &slave_attr_ad_aggregator_id, | |
254cb6db | 118 | &slave_attr_ad_actor_oper_port_state, |
46ea297e | 119 | &slave_attr_ad_partner_oper_port_state, |
07699f9a | 120 | NULL |
121 | }; | |
122 | ||
123 | #define to_slave_attr(_at) container_of(_at, struct slave_attribute, attr) | |
07699f9a | 124 | |
125 | static ssize_t slave_show(struct kobject *kobj, | |
126 | struct attribute *attr, char *buf) | |
127 | { | |
128 | struct slave_attribute *slave_attr = to_slave_attr(attr); | |
129 | struct slave *slave = to_slave(kobj); | |
130 | ||
131 | return slave_attr->show(slave, buf); | |
132 | } | |
133 | ||
b9ad3e9f | 134 | const struct sysfs_ops slave_sysfs_ops = { |
07699f9a | 135 | .show = slave_show, |
136 | }; | |
137 | ||
07699f9a | 138 | int bond_sysfs_slave_add(struct slave *slave) |
139 | { | |
140 | const struct slave_attribute **a; | |
141 | int err; | |
142 | ||
07699f9a | 143 | for (a = slave_attrs; *a; ++a) { |
144 | err = sysfs_create_file(&slave->kobj, &((*a)->attr)); | |
145 | if (err) { | |
7afcaec4 | 146 | kobject_put(&slave->kobj); |
07699f9a | 147 | return err; |
148 | } | |
149 | } | |
150 | ||
151 | return 0; | |
152 | } | |
153 | ||
154 | void bond_sysfs_slave_del(struct slave *slave) | |
155 | { | |
156 | const struct slave_attribute **a; | |
157 | ||
158 | for (a = slave_attrs; *a; ++a) | |
159 | sysfs_remove_file(&slave->kobj, &((*a)->attr)); | |
07699f9a | 160 | } |