51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Header File for FPGA DFL User API
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*
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* Copyright (C) 2017-2018 Intel Corporation, Inc.
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*
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* Authors:
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* Kang Luwei <luwei.kang@intel.com>
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* Zhang Yi <yi.z.zhang@intel.com>
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* Wu Hao <hao.wu@intel.com>
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* Xiao Guangrong <guangrong.xiao@linux.intel.com>
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*/
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#ifndef _UAPI_LINUX_FPGA_DFL_H
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#define _UAPI_LINUX_FPGA_DFL_H
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#include <linux/ioctl.h>
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#define DFL_FPGA_API_VERSION 0
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/*
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* The IOCTL interface for DFL based FPGA is designed for extensibility by
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* embedding the structure length (argsz) and flags into structures passed
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* between kernel and userspace. This design referenced the VFIO IOCTL
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* interface (include/uapi/linux/vfio.h).
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*/
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#define DFL_FPGA_MAGIC 0xB6
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#define DFL_FPGA_BASE 0
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/**
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* DFL_FPGA_GET_API_VERSION - _IO(DFL_FPGA_MAGIC, DFL_FPGA_BASE + 0)
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*
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* Report the version of the driver API.
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* Return: Driver API Version.
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*/
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#define DFL_FPGA_GET_API_VERSION _IO(DFL_FPGA_MAGIC, DFL_FPGA_BASE + 0)
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/**
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* DFL_FPGA_CHECK_EXTENSION - _IO(DFL_FPGA_MAGIC, DFL_FPGA_BASE + 1)
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*
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* Check whether an extension is supported.
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* Return: 0 if not supported, otherwise the extension is supported.
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*/
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#define DFL_FPGA_CHECK_EXTENSION _IO(DFL_FPGA_MAGIC, DFL_FPGA_BASE + 1)
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#endif /* _UAPI_LINUX_FPGA_DFL_H */
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