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1 /*
2  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
3  * Copyright (c) 2007 Cisco Systems, Inc.  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 IB_VERBS_H
35 #define IB_VERBS_H
36
37 #include <pthread.h>
38
39 #include <infiniband/driver.h>
40
41 #ifdef HAVE_VALGRIND_MEMCHECK_H
42
43 #  include <valgrind/memcheck.h>
44
45 #  ifndef VALGRIND_MAKE_MEM_DEFINED
46 #    warning "Valgrind support requested, but VALGRIND_MAKE_MEM_DEFINED not available"
47 #  endif
48
49 #endif /* HAVE_VALGRIND_MEMCHECK_H */
50
51 #ifndef VALGRIND_MAKE_MEM_DEFINED
52 #  define VALGRIND_MAKE_MEM_DEFINED(addr, len)
53 #endif
54
55 #define HIDDEN          __attribute__((visibility ("hidden")))
56
57 #define INIT            __attribute__((constructor))
58 #define FINI            __attribute__((destructor))
59
60 #define DEFAULT_ABI     "IBVERBS_1.1"
61
62 #ifdef HAVE_SYMVER_SUPPORT
63 #  define symver(name, api, ver) \
64         asm(".symver " #name "," #api "@" #ver)
65 #  define default_symver(name, api) \
66         asm(".symver " #name "," #api "@@" DEFAULT_ABI)
67 #else
68 #  define symver(name, api, ver)
69 #  define default_symver(name, api) \
70         extern __typeof(name) api __attribute__((alias(#name)))
71 #endif /* HAVE_SYMVER_SUPPORT */
72
73 #define PFX             "libibverbs: "
74
75 struct ibv_abi_compat_v2 {
76         struct ibv_comp_channel channel;
77         pthread_mutex_t         in_use;
78 };
79
80 extern HIDDEN int abi_ver;
81
82 HIDDEN int ibverbs_init(struct ibv_device ***list);
83
84 #define IBV_INIT_CMD(cmd, size, opcode)                                 \
85         do {                                                            \
86                 if (abi_ver > 2)                                        \
87                         (cmd)->command = IB_USER_VERBS_CMD_##opcode;    \
88                 else                                                    \
89                         (cmd)->command = IB_USER_VERBS_CMD_##opcode##_V2; \
90                 (cmd)->in_words  = (size) / 4;                          \
91                 (cmd)->out_words = 0;                                   \
92         } while (0)
93
94 #define IBV_INIT_CMD_RESP(cmd, size, opcode, out, outsize)              \
95         do {                                                            \
96                 if (abi_ver > 2)                                        \
97                         (cmd)->command = IB_USER_VERBS_CMD_##opcode;    \
98                 else                                                    \
99                         (cmd)->command = IB_USER_VERBS_CMD_##opcode##_V2; \
100                 (cmd)->in_words  = (size) / 4;                          \
101                 (cmd)->out_words = (outsize) / 4;                       \
102                 (cmd)->response  = (uintptr_t) (out);                   \
103         } while (0)
104
105 #endif /* IB_VERBS_H */