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 */
113