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1/*
2 * Intel MIC Platform Software Stack (MPSS)
3 *
4 * This file is provided under a dual BSD/GPLv2 license. When using or
5 * redistributing this file, you may do so under either license.
6 *
7 * GPL LICENSE SUMMARY
8 *
9 * Copyright(c) 2014 Intel Corporation.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * BSD LICENSE
21 *
22 * Copyright(c) 2014 Intel Corporation.
23 *
24 * Redistribution and use in source and binary forms, with or without
25 * modification, are permitted provided that the following conditions
26 * are met:
27 *
28 * * Redistributions of source code must retain the above copyright
29 * notice, this list of conditions and the following disclaimer.
30 * * Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in
32 * the documentation and/or other materials provided with the
33 * distribution.
34 * * Neither the name of Intel Corporation nor the names of its
35 * contributors may be used to endorse or promote products derived
36 * from this software without specific prior written permission.
37 *
38 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
39 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
40 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
41 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
42 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
44 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
45 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
46 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
47 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
48 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
49 *
50 * Intel SCIF driver.
51 *
52 */
53/*
54 * -----------------------------------------
55 * SCIF IOCTL interface information
56 * -----------------------------------------
57 */
58#ifndef SCIF_IOCTL_H
59#define SCIF_IOCTL_H
60
61#include <linux/types.h>
62
63/**
64 * struct scif_port_id - SCIF port information
65 * @node: node on which port resides
66 * @port: local port number
67 */
68struct scif_port_id {
69 __u16 node;
70 __u16 port;
71};
72
73/**
74 * struct scifioctl_connect - used for SCIF_CONNECT IOCTL
75 * @self: used to read back the assigned port_id
76 * @peer: destination node and port to connect to
77 */
78struct scifioctl_connect {
79 struct scif_port_id self;
80 struct scif_port_id peer;
81};
82
83/**
84 * struct scifioctl_accept - used for SCIF_ACCEPTREQ IOCTL
85 * @flags: flags
86 * @peer: global id of peer endpoint
87 * @endpt: new connected endpoint descriptor
88 */
89struct scifioctl_accept {
90 __s32 flags;
91 struct scif_port_id peer;
92 __u64 endpt;
93};
94
95/**
96 * struct scifioctl_msg - used for SCIF_SEND/SCIF_RECV IOCTL
97 * @msg: message buffer address
98 * @len: message length
99 * @flags: flags
100 * @out_len: number of bytes sent/received
101 */
102struct scifioctl_msg {
103 __u64 msg;
104 __s32 len;
105 __s32 flags;
106 __s32 out_len;
107};
108
109/**
110 * struct scifioctl_node_ids - used for SCIF_GET_NODEIDS IOCTL
111 * @nodes: pointer to an array of node_ids
112 * @self: ID of the current node
113 * @len: length of array
114 */
115struct scifioctl_node_ids {
116 __u64 nodes;
117 __u64 self;
118 __s32 len;
119};
120
121#define SCIF_BIND _IOWR('s', 1, __u64)
122#define SCIF_LISTEN _IOW('s', 2, __s32)
123#define SCIF_CONNECT _IOWR('s', 3, struct scifioctl_connect)
124#define SCIF_ACCEPTREQ _IOWR('s', 4, struct scifioctl_accept)
125#define SCIF_ACCEPTREG _IOWR('s', 5, __u64)
126#define SCIF_SEND _IOWR('s', 6, struct scifioctl_msg)
127#define SCIF_RECV _IOWR('s', 7, struct scifioctl_msg)
128#define SCIF_GET_NODEIDS _IOWR('s', 14, struct scifioctl_node_ids)
129
130#endif /* SCIF_IOCTL_H */