forked from Freescale/linux-fslc
-
Notifications
You must be signed in to change notification settings - Fork 1
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
bonding: add sysfs /slave dir for bond slave devices.
Add sub-directory under /sys/class/net/<interface>/slave with read-only attributes for slave. Directory only appears when <interface> is a slave. $ tree /sys/class/net/eth2/slave/ /sys/class/net/eth2/slave/ ├── ad_aggregator_id ├── link_failure_count ├── mii_status ├── perm_hwaddr ├── queue_id └── state $ cat /sys/class/net/eth2/slave/* 2 0 up 40:02:10:ef:06:01 0 active Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
- Loading branch information
Showing
5 changed files
with
176 additions
and
13 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,144 @@ | ||
| /* Sysfs attributes of bond slaves | ||
| * | ||
| * Copyright (c) 2014 Scott Feldman <sfeldma@cumulusnetworks.com> | ||
| * | ||
| * This program is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU General Public License | ||
| * as published by the Free Software Foundation; either version | ||
| * 2 of the License, or (at your option) any later version. | ||
| */ | ||
|
|
||
| #include <linux/capability.h> | ||
| #include <linux/kernel.h> | ||
| #include <linux/netdevice.h> | ||
|
|
||
| #include "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, S_IRUGO, _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, "UNKONWN\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, "%pM\n", 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 (slave->bond->params.mode == 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 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, | ||
| 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); | ||
| } | ||
|
|
||
| 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), "slave"); | ||
| if (err) | ||
| return err; | ||
|
|
||
| for (a = slave_attrs; *a; ++a) { | ||
| err = sysfs_create_file(&slave->kobj, &((*a)->attr)); | ||
| if (err) { | ||
| kobject_del(&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_del(&slave->kobj); | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters