LXR linux/drivers/vfio/mdev/mdev

   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
  16int  mdev_bus_register(void);
  17void mdev_bus_unregister(void);
  18
  19struct mdev_parent {
  20        struct device *dev;
  21        const struct mdev_parent_ops *ops;
  22        struct kref ref;
  23        struct mutex lock;
  24        struct list_head next;
  25        struct kset *mdev_types_kset;
  26        struct list_head type_list;
  27};
  28
  29struct mdev_device {
  30        struct device dev;
  31        struct mdev_parent *parent;
  32        uuid_le uuid;
  33        void *driver_data;
  34        struct kref ref;
  35        struct list_head next;
  36        struct kobject *type_kobj;
  37};
  38
  39#define to_mdev_device(dev)     container_of(dev, struct mdev_device, dev)
  40#define dev_is_mdev(d)          ((d)->bus == &mdev_bus_type)
  41
  42struct mdev_type {
  43        struct kobject kobj;
  44        struct kobject *devices_kobj;
  45        struct mdev_parent *parent;
  46        struct list_head next;
  47        struct attribute_group *group;
  48};
  49
  50#define to_mdev_type_attr(_attr)        \
  51        container_of(_attr, struct mdev_type_attribute, attr)
  52#define to_mdev_type(_kobj)             \
  53        container_of(_kobj, struct mdev_type, kobj)
  54
  55int  parent_create_sysfs_files(struct mdev_parent *parent);
  56void parent_remove_sysfs_files(struct mdev_parent *parent);
  57
  58int  mdev_create_sysfs_files(struct device *dev, struct mdev_type *type);
  59void mdev_remove_sysfs_files(struct device *dev, struct mdev_type *type);
  60
  61int  mdev_device_create(struct kobject *kobj, struct device *dev, uuid_le uuid);
  62int  mdev_device_remove(struct device *dev, bool force_remove);
  63
  64#endif /* MDEV_PRIVATE_H */
  65