77 строки
2.2 KiB
C
77 строки
2.2 KiB
C
/*
|
|
* 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 {
|
|
#ifdef __KERNEL__
|
|
struct iovec __user *iov;
|
|
#else
|
|
struct iovec *iov;
|
|
#endif
|
|
__u32 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
|