[mirror_ubuntu-jammy-kernel.git] / drivers / vfio / mdev / mdev_private.h

/*
 * Mediated device interal definitions
 *
 * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
 *     Author: Neo Jia <cjia@nvidia.com>
 *             Kirti Wankhede <kwankhede@nvidia.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef MDEV_PRIVATE_H
#define MDEV_PRIVATE_H

int  mdev_bus_register(void);
void mdev_bus_unregister(void);

struct mdev_parent {
	struct device *dev;
	const struct mdev_parent_ops *ops;
	struct kref ref;
	struct list_head next;
	struct kset *mdev_types_kset;
	struct list_head type_list;
	/* Synchronize device creation/removal with parent unregistration */
	struct rw_semaphore unreg_sem;
};

struct mdev_device {
	struct device dev;
	struct mdev_parent *parent;
	guid_t uuid;
	void *driver_data;
	struct list_head next;
	struct kobject *type_kobj;
	struct device *iommu_device;
	bool active;
};

#define to_mdev_device(dev)	container_of(dev, struct mdev_device, dev)
#define dev_is_mdev(d)		((d)->bus == &mdev_bus_type)

struct mdev_type {
	struct kobject kobj;
	struct kobject *devices_kobj;
	struct mdev_parent *parent;
	struct list_head next;
	struct attribute_group *group;
};

#define to_mdev_type_attr(_attr)	\
	container_of(_attr, struct mdev_type_attribute, attr)
#define to_mdev_type(_kobj)		\
	container_of(_kobj, struct mdev_type, kobj)

int  parent_create_sysfs_files(struct mdev_parent *parent);
void parent_remove_sysfs_files(struct mdev_parent *parent);

int  mdev_create_sysfs_files(struct device *dev, struct mdev_type *type);
void mdev_remove_sysfs_files(struct device *dev, struct mdev_type *type);

int  mdev_device_create(struct kobject *kobj,
			struct device *dev, const guid_t *uuid);
int  mdev_device_remove(struct device *dev);

#endif /* MDEV_PRIVATE_H */
Commit	Line	Data
7b96953b KW	1	/*
	2	* Mediated device interal definitions
	3	*
	4	* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
	5	* Author: Neo Jia <cjia@nvidia.com>
	6	* Kirti Wankhede <kwankhede@nvidia.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
	13	#ifndef MDEV_PRIVATE_H
	14	#define MDEV_PRIVATE_H
	15
	16	int mdev_bus_register(void);
	17	void mdev_bus_unregister(void);
	18
9372e6fe AW	19	struct mdev_parent {
	20	struct device *dev;
	21	const struct mdev_parent_ops *ops;
	22	struct kref ref;
9372e6fe AW	23	struct list_head next;
	24	struct kset *mdev_types_kset;
	25	struct list_head type_list;
5715c4dd PP	26	/* Synchronize device creation/removal with parent unregistration */
5715c4dd PP	27	struct rw_semaphore unreg_sem;
9372e6fe AW	28	};
9372e6fe AW	29
99e3123e AW	30	struct mdev_device {
	31	struct device dev;
	32	struct mdev_parent *parent;
278bca7f	33	guid_t uuid;
99e3123e	34	void *driver_data;
99e3123e AW	35	struct list_head next;
99e3123e AW	36	struct kobject *type_kobj;
8ac13175	37	struct device *iommu_device;
002fe996	38	bool active;
99e3123e AW	39	};
	40
	41	#define to_mdev_device(dev) container_of(dev, struct mdev_device, dev)
	42	#define dev_is_mdev(d) ((d)->bus == &mdev_bus_type)
	43
7b96953b KW	44	struct mdev_type {
	45	struct kobject kobj;
	46	struct kobject *devices_kobj;
42930553	47	struct mdev_parent *parent;
7b96953b KW	48	struct list_head next;
	49	struct attribute_group *group;
	50	};
	51
	52	#define to_mdev_type_attr(_attr) \
	53	container_of(_attr, struct mdev_type_attribute, attr)
	54	#define to_mdev_type(_kobj) \
	55	container_of(_kobj, struct mdev_type, kobj)
	56
42930553 AW	57	int parent_create_sysfs_files(struct mdev_parent *parent);
42930553 AW	58	void parent_remove_sysfs_files(struct mdev_parent *parent);
7b96953b KW	59
	60	int mdev_create_sysfs_files(struct device dev, struct mdev_type type);
	61	void mdev_remove_sysfs_files(struct device dev, struct mdev_type type);
	62
278bca7f AS	63	int mdev_device_create(struct kobject *kobj,
278bca7f AS	64	struct device dev, const guid_t uuid);
522ecce0	65	int mdev_device_remove(struct device *dev);
7b96953b KW	66
7b96953b KW	67	#endif /* MDEV_PRIVATE_H */