text: /*
   * Intel MIC Platform Software Stack (MPSS)
   *
   * Copyright(c) 2013 Intel Corporation.
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License, version 2, as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   * General Public License for more details.
   *
   * The full GNU General Public License is included in this distribution in
   * the file called "COPYING".
   *
   * Intel MIC Host driver.
   *
   */
  #ifndef _MIC_IOCTL_H_
  #define _MIC_IOCTL_H_
  
  #include <linux/types.h>
  
  /*
   * mic_copy - MIC virtio descriptor copy.
   *
   * @iov: An array of IOVEC structures containing user space buffers.
   * @iovcnt: Number of IOVEC structures in iov.
   * @vr_idx: The vring index.
   * @update_used: A non zero value results in used index being updated.
   * @out_len: The aggregate of the total length written to or read from
   *	the virtio device.
   */
  struct mic_copy_desc {
  	struct iovec *iov;
  	int iovcnt;
  	__u8 vr_idx;
  	__u8 update_used;
  	__u32 out_len;
  };
  
  /*
   * Add a new virtio device
   * The (struct mic_device_desc *) pointer points to a device page entry
   *	for the virtio device consisting of:
   *	- struct mic_device_desc
   *	- struct mic_vqconfig (num_vq of these)
   *	- host and guest features
   *	- virtio device config space
   * The total size referenced by the pointer should equal the size returned
   * by desc_size() in mic_common.h
   */
  #define MIC_VIRTIO_ADD_DEVICE _IOWR('s', 1, struct mic_device_desc *)
  
  /*
   * Copy the number of entries in the iovec and update the used index
   * if requested by the user.
   */
  #define MIC_VIRTIO_COPY_DESC	_IOWR('s', 2, struct mic_copy_desc *)
  
  /*
   * Notify virtio device of a config change
   * The (__u8 *) pointer points to config space values for the device
   * as they should be written into the device page. The total size
   * referenced by the pointer should equal the config_len field of struct
   * mic_device_desc.
   */
  #define MIC_VIRTIO_CONFIG_CHANGE _IOWR('s', 5, __u8 *)
  
  #endif
  