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vfio-mdev: Make mdev_device private and abstract interfaces

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Abstract access to mdev_device so that we can define which interfaces
are public rather than relying on comments in the structure.

Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Jike Song <jike.song@intel.com>
Reviewed by: Kirti Wankhede <kwankhede@nvidia.com>
This commit is contained in:
Alex Williamson 2016-12-30 08:13:44 -07:00
parent 9372e6feaa
commit 99e3123e3d
5 changed files with 71 additions and 45 deletions
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31
include/linux/mdev.h
View file

@ -13,18 +13,7 @@
#ifndef MDEV_H
#define MDEV_H
/* Mediated device */
struct mdev_device {
struct device dev;
struct mdev_parent *parent;
uuid_le uuid;
void *driver_data;
/* internal */
struct kref ref;
struct list_head next;
struct kobject *type_kobj;
};
struct mdev_device;
/**
* struct mdev_parent_ops - Structure to be registered for each parent device to
@ -75,7 +64,6 @@ struct mdev_device {
* Parent device that support mediated device should be registered with mdev
* module with mdev_parent_ops structure.
**/
struct mdev_parent_ops {
struct module *owner;
const struct attribute_group **dev_attr_groups;
@ -129,22 +117,13 @@ struct mdev_driver {
};
#define to_mdev_driver(drv) container_of(drv, struct mdev_driver, driver)
#define to_mdev_device(dev) container_of(dev, struct mdev_device, dev)
static inline void *mdev_get_drvdata(struct mdev_device *mdev)
{
return mdev->driver_data;
}
static inline void mdev_set_drvdata(struct mdev_device *mdev, void *data)
{
mdev->driver_data = data;
}
extern void *mdev_get_drvdata(struct mdev_device *mdev);
extern void mdev_set_drvdata(struct mdev_device *mdev, void *data);
extern uuid_le mdev_uuid(struct mdev_device *mdev);
extern struct bus_type mdev_bus_type;
#define dev_is_mdev(d) ((d)->bus == &mdev_bus_type)
extern int mdev_register_device(struct device *dev,
const struct mdev_parent_ops *ops);
extern void mdev_unregister_device(struct device *dev);
@ -153,5 +132,7 @@ extern int mdev_register_driver(struct mdev_driver *drv, struct module *owner);
extern void mdev_unregister_driver(struct mdev_driver *drv);
extern struct device *mdev_parent_dev(struct mdev_device *mdev);
extern struct device *mdev_dev(struct mdev_device *mdev);
extern struct mdev_device *mdev_from_dev(struct device *dev);
#endif /* MDEV_H */