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c2_user.h
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1 /*
2  * Copyright (c) 2005 Topspin Communications. All rights reserved.
3  * Copyright (c) 2005 Cisco Systems. All rights reserved.
4  * Copyright (c) 2005 Open Grid Computing, Inc. 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 
36 #ifndef C2_USER_H
37 #define C2_USER_H
38 
39 #include <linux/types.h>
40 
41 /*
42  * Make sure that all structs defined in this file remain laid out so
43  * that they pack the same way on 32-bit and 64-bit architectures (to
44  * avoid incompatibility between 32-bit userspace and 64-bit kernels).
45  * In particular do not use pointer types -- pass pointers in __u64
46  * instead.
47  */
48 
49 struct c2_alloc_ucontext_resp {
50  __u32 qp_tab_size;
51  __u32 uarc_size;
52 };
53 
54 struct c2_alloc_pd_resp {
55  __u32 pdn;
56  __u32 reserved;
57 };
58 
59 struct c2_create_cq {
60  __u32 lkey;
61  __u32 pdn;
62  __u64 arm_db_page;
63  __u64 set_db_page;
64  __u32 arm_db_index;
65  __u32 set_db_index;
66 };
67 
68 struct c2_create_cq_resp {
69  __u32 cqn;
70  __u32 reserved;
71 };
72 
73 struct c2_create_qp {
74  __u32 lkey;
75  __u32 reserved;
76  __u64 sq_db_page;
77  __u64 rq_db_page;
78  __u32 sq_db_index;
79  __u32 rq_db_index;
80 };
81 
82 #endif /* C2_USER_H */
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