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/*-
* Copyright (c) 2010 Isilon Systems, Inc.
* Copyright (c) 2010 iX Systems, Inc.
* Copyright (c) 2010 Panasas, Inc.
* Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _LINUXKPI_LINUX_KOBJECT_H_
#define _LINUXKPI_LINUX_KOBJECT_H_
#include <sys/stdarg.h>
#include <linux/kernel.h>
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
struct kobject;
struct kset;
struct sysctl_oid;
#define KOBJ_CHANGE 0x01
struct kobj_type {
void (*release)(struct kobject *kobj);
const struct sysfs_ops *sysfs_ops;
struct attribute **default_attrs;
const struct attribute_group **default_groups;
};
extern const struct kobj_type linux_kfree_type;
struct kobject {
struct kobject *parent;
char *name;
struct kref kref;
const struct kobj_type *ktype;
struct list_head entry;
struct sysctl_oid *oidp;
struct kset *kset;
};
extern struct kobject *mm_kobj;
struct attribute {
const char *name;
struct module *owner;
mode_t mode;
};
extern const struct sysfs_ops kobj_sysfs_ops;
struct kobj_attribute {
struct attribute attr;
ssize_t (*show)(struct kobject *kobj, struct kobj_attribute *attr,
char *buf);
ssize_t (*store)(struct kobject *kobj, struct kobj_attribute *attr,
const char *buf, size_t count);
};
struct kset_uevent_ops {
/* TODO */
};
struct kset {
struct list_head list;
spinlock_t list_lock;
struct kobject kobj;
const struct kset_uevent_ops *uevent_ops;
};
static inline void
kobject_init(struct kobject *kobj, const struct kobj_type *ktype)
{
kref_init(&kobj->kref);
INIT_LIST_HEAD(&kobj->entry);
kobj->ktype = ktype;
kobj->oidp = NULL;
}
void linux_kobject_release(struct kref *kref);
static inline void
kobject_put(struct kobject *kobj)
{
if (kobj)
kref_put(&kobj->kref, linux_kobject_release);
}
static inline struct kobject *
kobject_get(struct kobject *kobj)
{
if (kobj)
kref_get(&kobj->kref);
return kobj;
}
struct kobject *kobject_create(void);
int kobject_set_name_vargs(struct kobject *kobj, const char *fmt, va_list);
int kobject_add(struct kobject *kobj, struct kobject *parent,
const char *fmt, ...);
static inline struct kobject *
kobject_create_and_add(const char *name, struct kobject *parent)
{
struct kobject *kobj;
kobj = kobject_create();
if (kobj == NULL)
return (NULL);
if (kobject_add(kobj, parent, "%s", name) == 0)
return (kobj);
kobject_put(kobj);
return (NULL);
}
static inline void
kobject_del(struct kobject *kobj __unused)
{
}
static inline char *
kobject_name(const struct kobject *kobj)
{
return kobj->name;
}
int kobject_set_name(struct kobject *kobj, const char *fmt, ...);
int kobject_init_and_add(struct kobject *kobj, const struct kobj_type *ktype,
struct kobject *parent, const char *fmt, ...);
static __inline void
kobject_uevent_env(struct kobject *kobj, int action, char *envp[])
{
/*
* iwlwifi(4) sends an INACCESSIBLE event when it detects that the card
* (pice endpoint) is gone and it attempts a removal cleanup.
* Not sure if we do anything related to udev/sysfs at the moment or
* need a shortcut or simply ignore it (for now).
*/
}
void kset_init(struct kset *kset);
int kset_register(struct kset *kset);
void kset_unregister(struct kset *kset);
struct kset * kset_create_and_add(const char *name,
const struct kset_uevent_ops *u, struct kobject *parent_kobj);
static inline struct kset *
to_kset(struct kobject *kobj)
{
if (kobj != NULL)
return container_of(kobj, struct kset, kobj);
else
return NULL;
}
static inline struct kset *
kset_get(struct kset *kset)
{
if (kset != NULL) {
struct kobject *kobj;
kobj = kobject_get(&kset->kobj);
return to_kset(kobj);
} else {
return NULL;
}
}
static inline void
kset_put(struct kset *kset)
{
if (kset != NULL)
kobject_put(&kset->kobj);
}
void linux_kobject_kfree_name(struct kobject *kobj);
#endif /* _LINUXKPI_LINUX_KOBJECT_H_ */
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