View file File name : mic_ioctl.h Content :/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * 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; __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