1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
2 /*
3 * Copyright (c) 2005 Topspin Communications. All rights reserved.
4 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved.
5 *
6 * This software is available to you under a choice of one of two
7 * licenses. You may choose to be licensed under the terms of the GNU
8 * General Public License (GPL) Version 2, available from the file
9 * COPYING in the main directory of this source tree, or the
10 * OpenIB.org BSD license below:
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
18 * disclaimer.
19 *
20 * - Redistributions in binary form must reproduce the above
21 * copyright notice, this list of conditions and the following
22 * disclaimer in the documentation and/or other materials
23 * provided with the distribution.
24 *
25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
32 * SOFTWARE.
33 */
34
35 #ifndef MTHCA_ABI_USER_H
36 #define MTHCA_ABI_USER_H
37
38 #include <linux/types.h>
39
40 /*
41 * Increment this value if any changes that break userspace ABI
42 * compatibility are made.
43 */
44 #define MTHCA_UVERBS_ABI_VERSION 1
45
46 /*
47 * Make sure that all structs defined in this file remain laid out so
48 * that they pack the same way on 32-bit and 64-bit architectures (to
49 * avoid incompatibility between 32-bit userspace and 64-bit kernels).
50 * In particular do not use pointer types -- pass pointers in __u64
51 * instead.
52 */
53 struct mthca_alloc_ucontext_resp {
54 __u32 qp_tab_size;
55 __u32 uarc_size;
56 };
57
58 struct mthca_alloc_pd_resp {
59 __u32 pdn;
60 __u32 reserved;
61 };
62
63 /*
64 * Mark the memory region with a DMA attribute that causes
65 * in-flight DMA to be flushed when the region is written to:
66 */
67 #define MTHCA_MR_DMASYNC 0x1
68
69 struct mthca_reg_mr {
70 __u32 mr_attrs;
71 __u32 reserved;
72 };
73
74 struct mthca_create_cq {
75 __u32 lkey;
76 __u32 pdn;
77 __aligned_u64 arm_db_page;
78 __aligned_u64 set_db_page;
79 __u32 arm_db_index;
80 __u32 set_db_index;
81 };
82
83 struct mthca_create_cq_resp {
84 __u32 cqn;
85 __u32 reserved;
86 };
87
88 struct mthca_resize_cq {
89 __u32 lkey;
90 __u32 reserved;
91 };
92
93 struct mthca_create_srq {
94 __u32 lkey;
95 __u32 db_index;
96 __aligned_u64 db_page;
97 };
98
99 struct mthca_create_srq_resp {
100 __u32 srqn;
101 __u32 reserved;
102 };
103
104 struct mthca_create_qp {
105 __u32 lkey;
106 __u32 reserved;
107 __aligned_u64 sq_db_page;
108 __aligned_u64 rq_db_page;
109 __u32 sq_db_index;
110 __u32 rq_db_index;
111 };
112 #endif /* MTHCA_ABI_USER_H */