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160 lines
3.8 KiB
160 lines
3.8 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* Sysfs attributes of bond slaves |
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* |
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* Copyright (c) 2014 Scott Feldman <[email protected]> |
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*/ |
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#include <linux/capability.h> |
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#include <linux/kernel.h> |
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#include <linux/netdevice.h> |
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#include <net/bonding.h> |
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struct slave_attribute { |
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struct attribute attr; |
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ssize_t (*show)(struct slave *, char *); |
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}; |
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#define SLAVE_ATTR(_name, _mode, _show) \ |
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const struct slave_attribute slave_attr_##_name = { \ |
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.attr = {.name = __stringify(_name), \ |
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.mode = _mode }, \ |
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.show = _show, \ |
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}; |
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#define SLAVE_ATTR_RO(_name) \ |
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SLAVE_ATTR(_name, 0444, _name##_show) |
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static ssize_t state_show(struct slave *slave, char *buf) |
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{ |
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switch (bond_slave_state(slave)) { |
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case BOND_STATE_ACTIVE: |
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return sprintf(buf, "active\n"); |
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case BOND_STATE_BACKUP: |
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return sprintf(buf, "backup\n"); |
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default: |
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return sprintf(buf, "UNKNOWN\n"); |
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} |
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} |
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static SLAVE_ATTR_RO(state); |
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static ssize_t mii_status_show(struct slave *slave, char *buf) |
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{ |
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return sprintf(buf, "%s\n", bond_slave_link_status(slave->link)); |
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} |
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static SLAVE_ATTR_RO(mii_status); |
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static ssize_t link_failure_count_show(struct slave *slave, char *buf) |
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{ |
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return sprintf(buf, "%d\n", slave->link_failure_count); |
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} |
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static SLAVE_ATTR_RO(link_failure_count); |
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static ssize_t perm_hwaddr_show(struct slave *slave, char *buf) |
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{ |
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return sprintf(buf, "%*phC\n", |
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slave->dev->addr_len, |
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slave->perm_hwaddr); |
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} |
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static SLAVE_ATTR_RO(perm_hwaddr); |
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static ssize_t queue_id_show(struct slave *slave, char *buf) |
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{ |
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return sprintf(buf, "%d\n", slave->queue_id); |
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} |
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static SLAVE_ATTR_RO(queue_id); |
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static ssize_t ad_aggregator_id_show(struct slave *slave, char *buf) |
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{ |
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const struct aggregator *agg; |
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if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { |
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agg = SLAVE_AD_INFO(slave)->port.aggregator; |
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if (agg) |
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return sprintf(buf, "%d\n", |
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agg->aggregator_identifier); |
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} |
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return sprintf(buf, "N/A\n"); |
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} |
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static SLAVE_ATTR_RO(ad_aggregator_id); |
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static ssize_t ad_actor_oper_port_state_show(struct slave *slave, char *buf) |
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{ |
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const struct port *ad_port; |
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if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { |
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ad_port = &SLAVE_AD_INFO(slave)->port; |
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if (ad_port->aggregator) |
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return sprintf(buf, "%u\n", |
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ad_port->actor_oper_port_state); |
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} |
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return sprintf(buf, "N/A\n"); |
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} |
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static SLAVE_ATTR_RO(ad_actor_oper_port_state); |
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static ssize_t ad_partner_oper_port_state_show(struct slave *slave, char *buf) |
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{ |
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const struct port *ad_port; |
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if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { |
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ad_port = &SLAVE_AD_INFO(slave)->port; |
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if (ad_port->aggregator) |
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return sprintf(buf, "%u\n", |
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ad_port->partner_oper.port_state); |
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} |
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return sprintf(buf, "N/A\n"); |
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} |
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static SLAVE_ATTR_RO(ad_partner_oper_port_state); |
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static const struct slave_attribute *slave_attrs[] = { |
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&slave_attr_state, |
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&slave_attr_mii_status, |
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&slave_attr_link_failure_count, |
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&slave_attr_perm_hwaddr, |
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&slave_attr_queue_id, |
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&slave_attr_ad_aggregator_id, |
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&slave_attr_ad_actor_oper_port_state, |
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&slave_attr_ad_partner_oper_port_state, |
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NULL |
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}; |
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#define to_slave_attr(_at) container_of(_at, struct slave_attribute, attr) |
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static ssize_t slave_show(struct kobject *kobj, |
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struct attribute *attr, char *buf) |
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{ |
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struct slave_attribute *slave_attr = to_slave_attr(attr); |
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struct slave *slave = to_slave(kobj); |
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return slave_attr->show(slave, buf); |
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} |
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const struct sysfs_ops slave_sysfs_ops = { |
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.show = slave_show, |
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}; |
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int bond_sysfs_slave_add(struct slave *slave) |
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{ |
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const struct slave_attribute **a; |
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int err; |
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for (a = slave_attrs; *a; ++a) { |
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err = sysfs_create_file(&slave->kobj, &((*a)->attr)); |
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if (err) { |
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kobject_put(&slave->kobj); |
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return err; |
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} |
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} |
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return 0; |
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} |
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void bond_sysfs_slave_del(struct slave *slave) |
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{ |
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const struct slave_attribute **a; |
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for (a = slave_attrs; *a; ++a) |
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sysfs_remove_file(&slave->kobj, &((*a)->attr)); |
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}
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