--- /dev/null
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License 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.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Intel SCIF driver.
+ *
+ */
+/*
+ * -----------------------------------------
+ * SCIF IOCTL interface information
+ * -----------------------------------------
+ */
+#ifndef SCIF_IOCTL_H
+#define SCIF_IOCTL_H
+
+#include <linux/types.h>
+
+/**
+ * struct scif_port_id - SCIF port information
+ * @node: node on which port resides
+ * @port: local port number
+ */
+struct scif_port_id {
+ __u16 node;
+ __u16 port;
+};
+
+/**
+ * struct scifioctl_connect - used for SCIF_CONNECT IOCTL
+ * @self: used to read back the assigned port_id
+ * @peer: destination node and port to connect to
+ */
+struct scifioctl_connect {
+ struct scif_port_id self;
+ struct scif_port_id peer;
+};
+
+/**
+ * struct scifioctl_accept - used for SCIF_ACCEPTREQ IOCTL
+ * @flags: flags
+ * @peer: global id of peer endpoint
+ * @endpt: new connected endpoint descriptor
+ */
+struct scifioctl_accept {
+ __s32 flags;
+ struct scif_port_id peer;
+ __u64 endpt;
+};
+
+/**
+ * struct scifioctl_msg - used for SCIF_SEND/SCIF_RECV IOCTL
+ * @msg: message buffer address
+ * @len: message length
+ * @flags: flags
+ * @out_len: number of bytes sent/received
+ */
+struct scifioctl_msg {
+ __u64 msg;
+ __s32 len;
+ __s32 flags;
+ __s32 out_len;
+};
+
+/**
+ * struct scifioctl_reg - used for SCIF_REG IOCTL
+ * @addr: starting virtual address
+ * @len: length of range
+ * @offset: offset of window
+ * @prot: read/write protection
+ * @flags: flags
+ * @out_offset: offset returned
+ */
+struct scifioctl_reg {
+ __u64 addr;
+ __u64 len;
+ __s64 offset;
+ __s32 prot;
+ __s32 flags;
+ __s64 out_offset;
+};
+
+/**
+ * struct scifioctl_unreg - used for SCIF_UNREG IOCTL
+ * @offset: start of range to unregister
+ * @len: length of range to unregister
+ */
+struct scifioctl_unreg {
+ __s64 offset;
+ __u64 len;
+};
+
+/**
+ * struct scifioctl_copy - used for SCIF DMA copy IOCTLs
+ *
+ * @loffset: offset in local registered address space to/from
+ * which to copy
+ * @len: length of range to copy
+ * @roffset: offset in remote registered address space to/from
+ * which to copy
+ * @addr: user virtual address to/from which to copy
+ * @flags: flags
+ *
+ * This structure is used for SCIF_READFROM, SCIF_WRITETO, SCIF_VREADFROM
+ * and SCIF_VREADFROM IOCTL's.
+ */
+struct scifioctl_copy {
+ __s64 loffset;
+ __u64 len;
+ __s64 roffset;
+ __u64 addr;
+ __s32 flags;
+};
+
+/**
+ * struct scifioctl_fence_mark - used for SCIF_FENCE_MARK IOCTL
+ * @flags: flags
+ * @mark: fence handle which is a pointer to a __s32
+ */
+struct scifioctl_fence_mark {
+ __s32 flags;
+ __u64 mark;
+};
+
+/**
+ * struct scifioctl_fence_signal - used for SCIF_FENCE_SIGNAL IOCTL
+ * @loff: local offset
+ * @lval: value to write to loffset
+ * @roff: remote offset
+ * @rval: value to write to roffset
+ * @flags: flags
+ */
+struct scifioctl_fence_signal {
+ __s64 loff;
+ __u64 lval;
+ __s64 roff;
+ __u64 rval;
+ __s32 flags;
+};
+
+/**
+ * struct scifioctl_node_ids - used for SCIF_GET_NODEIDS IOCTL
+ * @nodes: pointer to an array of node_ids
+ * @self: ID of the current node
+ * @len: length of array
+ */
+struct scifioctl_node_ids {
+ __u64 nodes;
+ __u64 self;
+ __s32 len;
+};
+
+#define SCIF_BIND _IOWR('s', 1, __u64)
+#define SCIF_LISTEN _IOW('s', 2, __s32)
+#define SCIF_CONNECT _IOWR('s', 3, struct scifioctl_connect)
+#define SCIF_ACCEPTREQ _IOWR('s', 4, struct scifioctl_accept)
+#define SCIF_ACCEPTREG _IOWR('s', 5, __u64)
+#define SCIF_SEND _IOWR('s', 6, struct scifioctl_msg)
+#define SCIF_RECV _IOWR('s', 7, struct scifioctl_msg)
+#define SCIF_REG _IOWR('s', 8, struct scifioctl_reg)
+#define SCIF_UNREG _IOWR('s', 9, struct scifioctl_unreg)
+#define SCIF_READFROM _IOWR('s', 10, struct scifioctl_copy)
+#define SCIF_WRITETO _IOWR('s', 11, struct scifioctl_copy)
+#define SCIF_VREADFROM _IOWR('s', 12, struct scifioctl_copy)
+#define SCIF_VWRITETO _IOWR('s', 13, struct scifioctl_copy)
+#define SCIF_GET_NODEIDS _IOWR('s', 14, struct scifioctl_node_ids)
+#define SCIF_FENCE_MARK _IOWR('s', 15, struct scifioctl_fence_mark)
+#define SCIF_FENCE_WAIT _IOWR('s', 16, __s32)
+#define SCIF_FENCE_SIGNAL _IOWR('s', 17, struct scifioctl_fence_signal)
+
+#endif /* SCIF_IOCTL_H */
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