2 * Copyright (c) 2005 Voltaire Inc. All rights reserved.
3 * Copyright (c) 2005 Intel Corporation. All rights reserved.
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:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
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.
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
34 #if !defined(IB_ADDR_H)
38 #include <linux/in6.h>
39 #include <linux/netdevice.h>
40 #include <linux/socket.h>
41 #include <rdma/ib_verbs.h>
43 struct rdma_addr_client
{
45 struct completion comp
;
49 * rdma_addr_register_client - Register an address client.
51 void rdma_addr_register_client(struct rdma_addr_client
*client
);
54 * rdma_addr_unregister_client - Deregister an address client.
55 * @client: Client object to deregister.
57 void rdma_addr_unregister_client(struct rdma_addr_client
*client
);
59 struct rdma_dev_addr
{
60 unsigned char src_dev_addr
[MAX_ADDR_LEN
];
61 unsigned char dst_dev_addr
[MAX_ADDR_LEN
];
62 unsigned char broadcast
[MAX_ADDR_LEN
];
63 enum rdma_node_type dev_type
;
64 struct net_device
*src_dev
;
68 * rdma_translate_ip - Translate a local IP address to an RDMA hardware
71 int rdma_translate_ip(struct sockaddr
*addr
, struct rdma_dev_addr
*dev_addr
);
74 * rdma_resolve_ip - Resolve source and destination IP addresses to
75 * RDMA hardware addresses.
76 * @client: Address client associated with request.
77 * @src_addr: An optional source address to use in the resolution. If a
78 * source address is not provided, a usable address will be returned via
80 * @dst_addr: The destination address to resolve.
81 * @addr: A reference to a data location that will receive the resolved
82 * addresses. The data location must remain valid until the callback has
84 * @timeout_ms: Amount of time to wait for the address resolution to complete.
85 * @callback: Call invoked once address resolution has completed, timed out,
86 * or been canceled. A status of 0 indicates success.
87 * @context: User-specified context associated with the call.
89 int rdma_resolve_ip(struct rdma_addr_client
*client
,
90 struct sockaddr
*src_addr
, struct sockaddr
*dst_addr
,
91 struct rdma_dev_addr
*addr
, int timeout_ms
,
92 void (*callback
)(int status
, struct sockaddr
*src_addr
,
93 struct rdma_dev_addr
*addr
, void *context
),
96 void rdma_addr_cancel(struct rdma_dev_addr
*addr
);
98 int rdma_copy_addr(struct rdma_dev_addr
*dev_addr
, struct net_device
*dev
,
99 const unsigned char *dst_dev_addr
);
101 static inline int ip_addr_size(struct sockaddr
*addr
)
103 return addr
->sa_family
== AF_INET6
?
104 sizeof(struct sockaddr_in6
) : sizeof(struct sockaddr_in
);
107 static inline u16
ib_addr_get_pkey(struct rdma_dev_addr
*dev_addr
)
109 return ((u16
)dev_addr
->broadcast
[8] << 8) | (u16
)dev_addr
->broadcast
[9];
112 static inline void ib_addr_set_pkey(struct rdma_dev_addr
*dev_addr
, u16 pkey
)
114 dev_addr
->broadcast
[8] = pkey
>> 8;
115 dev_addr
->broadcast
[9] = (unsigned char) pkey
;
118 static inline void ib_addr_get_mgid(struct rdma_dev_addr
*dev_addr
,
121 memcpy(gid
, dev_addr
->broadcast
+ 4, sizeof *gid
);
124 static inline void ib_addr_get_sgid(struct rdma_dev_addr
*dev_addr
,
127 memcpy(gid
, dev_addr
->src_dev_addr
+ 4, sizeof *gid
);
130 static inline void ib_addr_set_sgid(struct rdma_dev_addr
*dev_addr
,
133 memcpy(dev_addr
->src_dev_addr
+ 4, gid
, sizeof *gid
);
136 static inline void ib_addr_get_dgid(struct rdma_dev_addr
*dev_addr
,
139 memcpy(gid
, dev_addr
->dst_dev_addr
+ 4, sizeof *gid
);
142 static inline void ib_addr_set_dgid(struct rdma_dev_addr
*dev_addr
,
145 memcpy(dev_addr
->dst_dev_addr
+ 4, gid
, sizeof *gid
);
148 static inline void iw_addr_get_sgid(struct rdma_dev_addr
*dev_addr
,
151 memcpy(gid
, dev_addr
->src_dev_addr
, sizeof *gid
);
154 static inline void iw_addr_get_dgid(struct rdma_dev_addr
*dev_addr
,
157 memcpy(gid
, dev_addr
->dst_dev_addr
, sizeof *gid
);
160 #endif /* IB_ADDR_H */
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