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vfio/mdev: Remove vfio_mdev.c

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Now that all mdev drivers directly create their own mdev_device driver and
directly register with the vfio core's vfio_device_ops this is all dead
code.

Delete vfio_mdev.c and the mdev_parent_ops members that are connected to
it.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20220411141403.86980-31-hch@lst.de
Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Zhi Wang <zhi.a.wang@intel.com>
This commit is contained in:
Jason Gunthorpe
2022-04-11 16:13:59 +02:00
committed by Zhi Wang
parent cba619cb0d
commit 6c7f98b334
7 changed files with 6 additions and 251 deletions
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48
include/linux/mdev.h
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@@ -40,40 +40,7 @@ struct device *mtype_get_parent_dev(struct mdev_type *mtype);
* @mdev_attr_groups: Attributes of the mediated device.
* @supported_type_groups: Attributes to define supported types. It is mandatory
* to provide supported types.
* @create: Called to allocate basic resources in parent device's
* driver for a particular mediated device. It is
* mandatory to provide create ops.
* @mdev: mdev_device structure on of mediated device
* that is being created
* Returns integer: success (0) or error (< 0)
* @remove: Called to free resources in parent device's driver for
* a mediated device. It is mandatory to provide 'remove'
* ops.
* @mdev: mdev_device device structure which is being
* destroyed
* Returns integer: success (0) or error (< 0)
* @read: Read emulation callback
* @mdev: mediated device structure
* @buf: read buffer
* @count: number of bytes to read
* @ppos: address.
* Retuns number on bytes read on success or error.
* @write: Write emulation callback
* @mdev: mediated device structure
* @buf: write buffer
* @count: number of bytes to be written
* @ppos: address.
* Retuns number on bytes written on success or error.
* @ioctl: IOCTL callback
* @mdev: mediated device structure
* @cmd: ioctl command
* @arg: arguments to ioctl
* @mmap: mmap callback
* @mdev: mediated device structure
* @vma: vma structure
* @request: request callback to release device
* @mdev: mediated device structure
* @count: request sequence number
*
* Parent device that support mediated device should be registered with mdev
* module with mdev_parent_ops structure.
**/
@@ -83,19 +50,6 @@ struct mdev_parent_ops {
const struct attribute_group **dev_attr_groups;
const struct attribute_group **mdev_attr_groups;
struct attribute_group **supported_type_groups;
int (*create)(struct mdev_device *mdev);
int (*remove)(struct mdev_device *mdev);
int (*open_device)(struct mdev_device *mdev);
void (*close_device)(struct mdev_device *mdev);
ssize_t (*read)(struct mdev_device *mdev, char __user *buf,
size_t count, loff_t *ppos);
ssize_t (*write)(struct mdev_device *mdev, const char __user *buf,
size_t count, loff_t *ppos);
long (*ioctl)(struct mdev_device *mdev, unsigned int cmd,
unsigned long arg);
int (*mmap)(struct mdev_device *mdev, struct vm_area_struct *vma);
void (*request)(struct mdev_device *mdev, unsigned int count);
};
/* interface for exporting mdev supported type attributes */