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