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1 | /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */ |
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2 | /* |
3 | * Intel MIC Platform Software Stack (MPSS) |
4 | * |
5 | * This file is provided under a dual BSD/GPLv2 license. When using or |
6 | * redistributing this file, you may do so under either license. |
7 | * |
8 | * GPL LICENSE SUMMARY |
9 | * |
10 | * Copyright(c) 2014 Intel Corporation. |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify |
13 | * it under the terms of version 2 of the GNU General Public License as |
14 | * published by the Free Software Foundation. |
15 | * |
16 | * This program is distributed in the hope that it will be useful, but |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
19 | * General Public License for more details. |
20 | * |
21 | * BSD LICENSE |
22 | * |
23 | * Copyright(c) 2014 Intel Corporation. |
24 | * |
25 | * Redistribution and use in source and binary forms, with or without |
26 | * modification, are permitted provided that the following conditions |
27 | * are met: |
28 | * |
29 | * * Redistributions of source code must retain the above copyright |
30 | * notice, this list of conditions and the following disclaimer. |
31 | * * Redistributions in binary form must reproduce the above copyright |
32 | * notice, this list of conditions and the following disclaimer in |
33 | * the documentation and/or other materials provided with the |
34 | * distribution. |
35 | * * Neither the name of Intel Corporation nor the names of its |
36 | * contributors may be used to endorse or promote products derived |
37 | * from this software without specific prior written permission. |
38 | * |
39 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
40 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
41 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
42 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
43 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
45 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
46 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
47 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
48 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
49 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
50 | * |
51 | * Intel SCIF driver. |
52 | * |
53 | */ |
54 | /* |
55 | * ----------------------------------------- |
56 | * SCIF IOCTL interface information |
57 | * ----------------------------------------- |
58 | */ |
59 | #ifndef SCIF_IOCTL_H |
60 | #define SCIF_IOCTL_H |
61 | |
62 | #include <linux/types.h> |
63 | |
64 | /** |
65 | * struct scif_port_id - SCIF port information |
66 | * @node: node on which port resides |
67 | * @port: local port number |
68 | */ |
69 | struct scif_port_id { |
70 | __u16 node; |
71 | __u16 port; |
72 | }; |
73 | |
74 | /** |
75 | * struct scifioctl_connect - used for SCIF_CONNECT IOCTL |
76 | * @self: used to read back the assigned port_id |
77 | * @peer: destination node and port to connect to |
78 | */ |
79 | struct scifioctl_connect { |
80 | struct scif_port_id self; |
81 | struct scif_port_id peer; |
82 | }; |
83 | |
84 | /** |
85 | * struct scifioctl_accept - used for SCIF_ACCEPTREQ IOCTL |
86 | * @flags: flags |
87 | * @peer: global id of peer endpoint |
88 | * @endpt: new connected endpoint descriptor |
89 | */ |
90 | struct scifioctl_accept { |
91 | __s32 flags; |
92 | struct scif_port_id peer; |
93 | __u64 endpt; |
94 | }; |
95 | |
96 | /** |
97 | * struct scifioctl_msg - used for SCIF_SEND/SCIF_RECV IOCTL |
98 | * @msg: message buffer address |
99 | * @len: message length |
100 | * @flags: flags |
101 | * @out_len: number of bytes sent/received |
102 | */ |
103 | struct scifioctl_msg { |
104 | __u64 msg; |
105 | __s32 len; |
106 | __s32 flags; |
107 | __s32 out_len; |
108 | }; |
109 | |
110 | /** |
111 | * struct scifioctl_reg - used for SCIF_REG IOCTL |
112 | * @addr: starting virtual address |
113 | * @len: length of range |
114 | * @offset: offset of window |
115 | * @prot: read/write protection |
116 | * @flags: flags |
117 | * @out_offset: offset returned |
118 | */ |
119 | struct scifioctl_reg { |
120 | __u64 addr; |
121 | __u64 len; |
122 | __s64 offset; |
123 | __s32 prot; |
124 | __s32 flags; |
125 | __s64 out_offset; |
126 | }; |
127 | |
128 | /** |
129 | * struct scifioctl_unreg - used for SCIF_UNREG IOCTL |
130 | * @offset: start of range to unregister |
131 | * @len: length of range to unregister |
132 | */ |
133 | struct scifioctl_unreg { |
134 | __s64 offset; |
135 | __u64 len; |
136 | }; |
137 | |
138 | /** |
139 | * struct scifioctl_copy - used for SCIF DMA copy IOCTLs |
140 | * |
141 | * @loffset: offset in local registered address space to/from |
142 | * which to copy |
143 | * @len: length of range to copy |
144 | * @roffset: offset in remote registered address space to/from |
145 | * which to copy |
146 | * @addr: user virtual address to/from which to copy |
147 | * @flags: flags |
148 | * |
149 | * This structure is used for SCIF_READFROM, SCIF_WRITETO, SCIF_VREADFROM |
150 | * and SCIF_VREADFROM IOCTL's. |
151 | */ |
152 | struct scifioctl_copy { |
153 | __s64 loffset; |
154 | __u64 len; |
155 | __s64 roffset; |
156 | __u64 addr; |
157 | __s32 flags; |
158 | }; |
159 | |
160 | /** |
161 | * struct scifioctl_fence_mark - used for SCIF_FENCE_MARK IOCTL |
162 | * @flags: flags |
163 | * @mark: fence handle which is a pointer to a __s32 |
164 | */ |
165 | struct scifioctl_fence_mark { |
166 | __s32 flags; |
167 | __u64 mark; |
168 | }; |
169 | |
170 | /** |
171 | * struct scifioctl_fence_signal - used for SCIF_FENCE_SIGNAL IOCTL |
172 | * @loff: local offset |
173 | * @lval: value to write to loffset |
174 | * @roff: remote offset |
175 | * @rval: value to write to roffset |
176 | * @flags: flags |
177 | */ |
178 | struct scifioctl_fence_signal { |
179 | __s64 loff; |
180 | __u64 lval; |
181 | __s64 roff; |
182 | __u64 rval; |
183 | __s32 flags; |
184 | }; |
185 | |
186 | /** |
187 | * struct scifioctl_node_ids - used for SCIF_GET_NODEIDS IOCTL |
188 | * @nodes: pointer to an array of node_ids |
189 | * @self: ID of the current node |
190 | * @len: length of array |
191 | */ |
192 | struct scifioctl_node_ids { |
193 | __u64 nodes; |
194 | __u64 self; |
195 | __s32 len; |
196 | }; |
197 | |
198 | #define SCIF_BIND _IOWR('s', 1, __u64) |
199 | #define SCIF_LISTEN _IOW('s', 2, __s32) |
200 | #define SCIF_CONNECT _IOWR('s', 3, struct scifioctl_connect) |
201 | #define SCIF_ACCEPTREQ _IOWR('s', 4, struct scifioctl_accept) |
202 | #define SCIF_ACCEPTREG _IOWR('s', 5, __u64) |
203 | #define SCIF_SEND _IOWR('s', 6, struct scifioctl_msg) |
204 | #define SCIF_RECV _IOWR('s', 7, struct scifioctl_msg) |
205 | #define SCIF_REG _IOWR('s', 8, struct scifioctl_reg) |
206 | #define SCIF_UNREG _IOWR('s', 9, struct scifioctl_unreg) |
207 | #define SCIF_READFROM _IOWR('s', 10, struct scifioctl_copy) |
208 | #define SCIF_WRITETO _IOWR('s', 11, struct scifioctl_copy) |
209 | #define SCIF_VREADFROM _IOWR('s', 12, struct scifioctl_copy) |
210 | #define SCIF_VWRITETO _IOWR('s', 13, struct scifioctl_copy) |
211 | #define SCIF_GET_NODEIDS _IOWR('s', 14, struct scifioctl_node_ids) |
212 | #define SCIF_FENCE_MARK _IOWR('s', 15, struct scifioctl_fence_mark) |
213 | #define SCIF_FENCE_WAIT _IOWR('s', 16, __s32) |
214 | #define SCIF_FENCE_SIGNAL _IOWR('s', 17, struct scifioctl_fence_signal) |
215 | |
216 | #endif /* SCIF_IOCTL_H */ |
217 |
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