| /* |
| * 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_ |
| |
| /* |
| * 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 |
| 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 |