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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | // SPDX-License-Identifier: GPL-2.0-or-later /* Sysfs attributes of bond slaves * * Copyright (c) 2014 Scott Feldman <sfeldma@cumulusnetworks.com> */ #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, 0444, _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, "%*phC\n", slave->dev->addr_len, 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 ssize_t ad_actor_oper_port_state_show(struct slave *slave, char *buf) { const struct port *ad_port; if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { ad_port = &SLAVE_AD_INFO(slave)->port; if (ad_port->aggregator) return sprintf(buf, "%u\n", ad_port->actor_oper_port_state); } return sprintf(buf, "N/A\n"); } static SLAVE_ATTR_RO(ad_actor_oper_port_state); static ssize_t ad_partner_oper_port_state_show(struct slave *slave, char *buf) { const struct port *ad_port; if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { ad_port = &SLAVE_AD_INFO(slave)->port; if (ad_port->aggregator) return sprintf(buf, "%u\n", ad_port->partner_oper.port_state); } return sprintf(buf, "N/A\n"); } static SLAVE_ATTR_RO(ad_partner_oper_port_state); 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, &slave_attr_ad_actor_oper_port_state, &slave_attr_ad_partner_oper_port_state, 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); } |