mthca_user.h revision cb9fbc5c37b69ac584e61d449cfd590f5ae1f90d 
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
35#ifndef MTHCA_USER_H
36#define MTHCA_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	2
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
54struct mthca_alloc_ucontext_resp {
55	__u32 qp_tab_size;
56	__u32 uarc_size;
57};
58
59struct mthca_alloc_pd_resp {
60	__u32 pdn;
61	__u32 reserved;
62};
63
64struct mthca_reg_mr {
65	__u32 mr_attrs;
66#define MTHCA_MR_DMASYNC 0x1
67/* mark the memory region with a DMA attribute that causes
68 * in-flight DMA to be flushed when the region is written to */
69	__u32 reserved;
70};
71
72struct mthca_create_cq {
73	__u32 lkey;
74	__u32 pdn;
75	__u64 arm_db_page;
76	__u64 set_db_page;
77	__u32 arm_db_index;
78	__u32 set_db_index;
79};
80
81struct mthca_create_cq_resp {
82	__u32 cqn;
83	__u32 reserved;
84};
85
86struct mthca_resize_cq {
87	__u32 lkey;
88	__u32 reserved;
89};
90
91struct mthca_create_srq {
92	__u32 lkey;
93	__u32 db_index;
94	__u64 db_page;
95};
96
97struct mthca_create_srq_resp {
98	__u32 srqn;
99	__u32 reserved;
100};
101
102struct mthca_create_qp {
103	__u32 lkey;
104	__u32 reserved;
105	__u64 sq_db_page;
106	__u64 rq_db_page;
107	__u32 sq_db_index;
108	__u32 rq_db_index;
109};
110
111#endif /* MTHCA_USER_H */
112