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