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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/rdma/ib_addr.h
2 * Copyright (c) 2005 Voltaire Inc. All rights reserved.
3 * Copyright (c) 2005 Intel Corporation. All rights reserved.
5 * This Software is licensed under one of the following licenses:
7 * 1) under the terms of the "Common Public License 1.0" a copy of which is
8 * available from the Open Source Initiative, see
9 * http://www.opensource.org/licenses/cpl.php.
11 * 2) under the terms of the "The BSD License" a copy of which is
12 * available from the Open Source Initiative, see
13 * http://www.opensource.org/licenses/bsd-license.php.
15 * 3) under the terms of the "GNU General Public License (GPL) Version 2" a
16 * copy of which is available from the Open Source Initiative, see
17 * http://www.opensource.org/licenses/gpl-license.php.
19 * Licensee has the right to choose one of the above licenses.
21 * Redistributions of source code must retain the above copyright
22 * notice and one of the license notices.
24 * Redistributions in binary form must reproduce both the above copyright
25 * notice, one of the license notices in the documentation
26 * and/or other materials provided with the distribution.
30 #if !defined(IB_ADDR_H)
34 #include <linux/in6.h>
35 #include <linux/netdevice.h>
36 #include <linux/socket.h>
37 #include <rdma/ib_verbs.h>
39 struct rdma_addr_client
{
41 struct completion comp
;
45 * rdma_addr_register_client - Register an address client.
47 void rdma_addr_register_client(struct rdma_addr_client
*client
);
50 * rdma_addr_unregister_client - Deregister an address client.
51 * @client: Client object to deregister.
53 void rdma_addr_unregister_client(struct rdma_addr_client
*client
);
55 struct rdma_dev_addr
{
56 unsigned char src_dev_addr
[MAX_ADDR_LEN
];
57 unsigned char dst_dev_addr
[MAX_ADDR_LEN
];
58 unsigned char broadcast
[MAX_ADDR_LEN
];
59 enum rdma_node_type dev_type
;
63 * rdma_translate_ip - Translate a local IP address to an RDMA hardware
66 int rdma_translate_ip(struct sockaddr
*addr
, struct rdma_dev_addr
*dev_addr
);
69 * rdma_resolve_ip - Resolve source and destination IP addresses to
70 * RDMA hardware addresses.
71 * @client: Address client associated with request.
72 * @src_addr: An optional source address to use in the resolution. If a
73 * source address is not provided, a usable address will be returned via
75 * @dst_addr: The destination address to resolve.
76 * @addr: A reference to a data location that will receive the resolved
77 * addresses. The data location must remain valid until the callback has
79 * @timeout_ms: Amount of time to wait for the address resolution to complete.
80 * @callback: Call invoked once address resolution has completed, timed out,
81 * or been canceled. A status of 0 indicates success.
82 * @context: User-specified context associated with the call.
84 int rdma_resolve_ip(struct rdma_addr_client
*client
,
85 struct sockaddr
*src_addr
, struct sockaddr
*dst_addr
,
86 struct rdma_dev_addr
*addr
, int timeout_ms
,
87 void (*callback
)(int status
, struct sockaddr
*src_addr
,
88 struct rdma_dev_addr
*addr
, void *context
),
91 void rdma_addr_cancel(struct rdma_dev_addr
*addr
);
93 int rdma_copy_addr(struct rdma_dev_addr
*dev_addr
, struct net_device
*dev
,
94 const unsigned char *dst_dev_addr
);
96 static inline int ip_addr_size(struct sockaddr
*addr
)
98 return addr
->sa_family
== AF_INET6
?
99 sizeof(struct sockaddr_in6
) : sizeof(struct sockaddr_in
);
102 static inline u16
ib_addr_get_pkey(struct rdma_dev_addr
*dev_addr
)
104 return ((u16
)dev_addr
->broadcast
[8] << 8) | (u16
)dev_addr
->broadcast
[9];
107 static inline void ib_addr_set_pkey(struct rdma_dev_addr
*dev_addr
, u16 pkey
)
109 dev_addr
->broadcast
[8] = pkey
>> 8;
110 dev_addr
->broadcast
[9] = (unsigned char) pkey
;
113 static inline void ib_addr_get_mgid(struct rdma_dev_addr
*dev_addr
,
116 memcpy(gid
, dev_addr
->broadcast
+ 4, sizeof *gid
);
119 static inline void ib_addr_get_sgid(struct rdma_dev_addr
*dev_addr
,
122 memcpy(gid
, dev_addr
->src_dev_addr
+ 4, sizeof *gid
);
125 static inline void ib_addr_set_sgid(struct rdma_dev_addr
*dev_addr
,
128 memcpy(dev_addr
->src_dev_addr
+ 4, gid
, sizeof *gid
);
131 static inline void ib_addr_get_dgid(struct rdma_dev_addr
*dev_addr
,
134 memcpy(gid
, dev_addr
->dst_dev_addr
+ 4, sizeof *gid
);
137 static inline void ib_addr_set_dgid(struct rdma_dev_addr
*dev_addr
,
140 memcpy(dev_addr
->dst_dev_addr
+ 4, gid
, sizeof *gid
);
143 static inline void iw_addr_get_sgid(struct rdma_dev_addr
*dev_addr
,
146 memcpy(gid
, dev_addr
->src_dev_addr
, sizeof *gid
);
149 static inline void iw_addr_get_dgid(struct rdma_dev_addr
*dev_addr
,
152 memcpy(gid
, dev_addr
->dst_dev_addr
, sizeof *gid
);
155 #endif /* IB_ADDR_H */