drivers/vfio/mdev/mdev_private.h

   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
  19 struct 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
  29 struct 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
  42 struct 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
  55 int  parent_create_sysfs_files(struct mdev_parent *parent);
  56 void parent_remove_sysfs_files(struct mdev_parent *parent);
  57
  58 int  mdev_create_sysfs_files(struct device *dev, struct mdev_type *type);
  59 void mdev_remove_sysfs_files(struct device *dev, struct mdev_type *type);
  60
  61 int  mdev_device_create(struct kobject *kobj, struct device *dev, uuid_le uuid);
  62 int  mdev_device_remove(struct device *dev, bool force_remove);
  63
  64 #endif /* MDEV_PRIVATE_H */