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