ib.h revision 331769 
1/*
2 * Copyright (c) 2010 Intel Corporation.  All rights reserved.
3 *
4 * This software is available to you under a choice of one of two
5 * licenses.  You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
9 *
10 *     Redistribution and use in source and binary forms, with or
11 *     without modification, are permitted provided that the following
12 *     conditions are met:
13 *
14 *      - Redistributions of source code must retain the above
15 *        copyright notice, this list of conditions and the following
16 *        disclaimer.
17 *
18 *      - Redistributions in binary form must reproduce the above
19 *        copyright notice, this list of conditions and the following
20 *        disclaimer in the documentation and/or other materials
21 *        provided with the distribution.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30 * SOFTWARE.
31 */
32
33#if !defined(_RDMA_IB_H)
34#define _RDMA_IB_H
35
36#include <infiniband/types.h>
37#include <infiniband/endian.h>
38#include <string.h>
39
40#ifndef AF_IB
41#define AF_IB 41
42#endif
43#ifndef PF_IB
44#define PF_IB AF_IB
45#endif
46
47struct ib_addr {
48	union {
49		__u8		uib_addr8[16];
50		__be16		uib_addr16[8];
51		__be32		uib_addr32[4];
52		__be64		uib_addr64[2];
53	} ib_u;
54#define sib_addr8		ib_u.uib_addr8
55#define sib_addr16		ib_u.uib_addr16
56#define sib_addr32		ib_u.uib_addr32
57#define sib_addr64		ib_u.uib_addr64
58#define sib_raw			ib_u.uib_addr8
59#define sib_subnet_prefix	ib_u.uib_addr64[0]
60#define sib_interface_id	ib_u.uib_addr64[1]
61};
62
63static inline int ib_addr_any(const struct ib_addr *a)
64{
65	return ((a->sib_addr64[0] | a->sib_addr64[1]) == 0);
66}
67
68static inline int ib_addr_loopback(const struct ib_addr *a)
69{
70	return ((a->sib_addr32[0] | a->sib_addr32[1] |
71		 a->sib_addr32[2] | (a->sib_addr32[3] ^ htobe32(1))) == 0);
72}
73
74static inline void ib_addr_set(struct ib_addr *addr,
75			       __be32 w1, __be32 w2, __be32 w3, __be32 w4)
76{
77	addr->sib_addr32[0] = w1;
78	addr->sib_addr32[1] = w2;
79	addr->sib_addr32[2] = w3;
80	addr->sib_addr32[3] = w4;
81}
82
83static inline int ib_addr_cmp(const struct ib_addr *a1, const struct ib_addr *a2)
84{
85	return memcmp(a1, a2, sizeof(struct ib_addr));
86}
87
88struct sockaddr_ib {
89	unsigned short int	sib_family;	/* AF_IB */
90	__be16			sib_pkey;
91	__be32			sib_flowinfo;
92	struct ib_addr		sib_addr;
93	__be64			sib_sid;
94	__be64			sib_sid_mask;
95	__u64			sib_scope_id;
96};
97
98#endif /* _RDMA_IB_H */
99