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;
67 * rdma_translate_ip - Translate a local IP address to an RDMA hardware
70 int rdma_translate_ip(struct sockaddr *addr, struct rdma_dev_addr *dev_addr);
73 * rdma_resolve_ip - Resolve source and destination IP addresses to
74 * RDMA hardware addresses.
75 * @client: Address client associated with request.
76 * @src_addr: An optional source address to use in the resolution. If a
77 * source address is not provided, a usable address will be returned via
79 * @dst_addr: The destination address to resolve.
80 * @addr: A reference to a data location that will receive the resolved
81 * addresses. The data location must remain valid until the callback has
83 * @timeout_ms: Amount of time to wait for the address resolution to complete.
84 * @callback: Call invoked once address resolution has completed, timed out,
85 * or been canceled. A status of 0 indicates success.
86 * @context: User-specified context associated with the call.
88 int rdma_resolve_ip(struct rdma_addr_client *client,
89 struct sockaddr *src_addr, struct sockaddr *dst_addr,
90 struct rdma_dev_addr *addr, int timeout_ms,
91 void (*callback)(int status, struct sockaddr *src_addr,
92 struct rdma_dev_addr *addr, void *context),
95 void rdma_addr_cancel(struct rdma_dev_addr *addr);
97 int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev,
98 const unsigned char *dst_dev_addr);
100 static inline int ip_addr_size(struct sockaddr *addr)
102 return addr->sa_family == AF_INET6 ?
103 sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in);
106 static inline u16 ib_addr_get_pkey(struct rdma_dev_addr *dev_addr)
108 return ((u16)dev_addr->broadcast[8] << 8) | (u16)dev_addr->broadcast[9];
111 static inline void ib_addr_set_pkey(struct rdma_dev_addr *dev_addr, u16 pkey)
113 dev_addr->broadcast[8] = pkey >> 8;
114 dev_addr->broadcast[9] = (unsigned char) pkey;
117 static inline void ib_addr_get_mgid(struct rdma_dev_addr *dev_addr,
120 memcpy(gid, dev_addr->broadcast + 4, sizeof *gid);
123 static inline void ib_addr_get_sgid(struct rdma_dev_addr *dev_addr,
126 memcpy(gid, dev_addr->src_dev_addr + 4, sizeof *gid);
129 static inline void ib_addr_set_sgid(struct rdma_dev_addr *dev_addr,
132 memcpy(dev_addr->src_dev_addr + 4, gid, sizeof *gid);
135 static inline void ib_addr_get_dgid(struct rdma_dev_addr *dev_addr,
138 memcpy(gid, dev_addr->dst_dev_addr + 4, sizeof *gid);
141 static inline void ib_addr_set_dgid(struct rdma_dev_addr *dev_addr,
144 memcpy(dev_addr->dst_dev_addr + 4, gid, sizeof *gid);
147 static inline void iw_addr_get_sgid(struct rdma_dev_addr *dev_addr,
150 memcpy(gid, dev_addr->src_dev_addr, sizeof *gid);
153 static inline void iw_addr_get_dgid(struct rdma_dev_addr *dev_addr,
156 memcpy(gid, dev_addr->dst_dev_addr, sizeof *gid);
159 #endif /* IB_ADDR_H */