xref: /freebsd/contrib/ofed/librdmacm/ib.h (revision 4f52dfbb)
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 
47 struct 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 
63 static inline int ib_addr_any(const struct ib_addr *a)
64 {
65 	return ((a->sib_addr64[0] | a->sib_addr64[1]) == 0);
66 }
67 
68 static 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 
74 static 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 
83 static 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 
88 struct 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