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linux
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scif_ioctl.h
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/* 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 */
