1 /*
2 * Copyright (c) 2005-2006 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 #ifndef RDMA_USER_CM_H
34 #define RDMA_USER_CM_H
35
36 #include <linux/types.h>
37 #include <linux/in6.h>
38 #include <rdma/ib_user_verbs.h>
39 #include <rdma/ib_user_sa.h>
40
41 #define RDMA_USER_CM_ABI_VERSION 4
42
43 #define RDMA_MAX_PRIVATE_DATA 256
44
45 enum {
46 RDMA_USER_CM_CMD_CREATE_ID,
47 RDMA_USER_CM_CMD_DESTROY_ID,
48 RDMA_USER_CM_CMD_BIND_ADDR,
49 RDMA_USER_CM_CMD_RESOLVE_ADDR,
50 RDMA_USER_CM_CMD_RESOLVE_ROUTE,
51 RDMA_USER_CM_CMD_QUERY_ROUTE,
52 RDMA_USER_CM_CMD_CONNECT,
53 RDMA_USER_CM_CMD_LISTEN,
54 RDMA_USER_CM_CMD_ACCEPT,
55 RDMA_USER_CM_CMD_REJECT,
56 RDMA_USER_CM_CMD_DISCONNECT,
57 RDMA_USER_CM_CMD_INIT_QP_ATTR,
58 RDMA_USER_CM_CMD_GET_EVENT,
59 RDMA_USER_CM_CMD_GET_OPTION,
60 RDMA_USER_CM_CMD_SET_OPTION,
61 RDMA_USER_CM_CMD_NOTIFY,
62 RDMA_USER_CM_CMD_JOIN_MCAST,
63 RDMA_USER_CM_CMD_LEAVE_MCAST,
64 RDMA_USER_CM_CMD_MIGRATE_ID
65 };
66
67 /*
68 * command ABI structures.
69 */
70 struct rdma_ucm_cmd_hdr {
71 __u32 cmd;
72 __u16 in;
73 __u16 out;
74 };
75
76 struct rdma_ucm_create_id {
77 __u64 uid;
78 __u64 response;
79 __u16 ps;
80 __u8 reserved[6];
81 };
82
83 struct rdma_ucm_create_id_resp {
84 __u32 id;
85 };
86
87 struct rdma_ucm_destroy_id {
88 __u64 response;
89 __u32 id;
90 __u32 reserved;
91 };
92
93 struct rdma_ucm_destroy_id_resp {
94 __u32 events_reported;
95 };
96
97 struct rdma_ucm_bind_addr {
98 __u64 response;
99 struct sockaddr_in6 addr;
100 __u32 id;
101 };
102
103 struct rdma_ucm_resolve_addr {
104 struct sockaddr_in6 src_addr;
105 struct sockaddr_in6 dst_addr;
106 __u32 id;
107 __u32 timeout_ms;
108 };
109
110 struct rdma_ucm_resolve_route {
111 __u32 id;
112 __u32 timeout_ms;
113 };
114
115 struct rdma_ucm_query_route {
116 __u64 response;
117 __u32 id;
118 __u32 reserved;
119 };
120
121 struct rdma_ucm_query_route_resp {
122 __u64 node_guid;
123 struct ib_user_path_rec ib_route[2];
124 struct sockaddr_in6 src_addr;
125 struct sockaddr_in6 dst_addr;
126 __u32 num_paths;
127 __u8 port_num;
128 __u8 reserved[3];
129 };
130
131 struct rdma_ucm_conn_param {
132 __u32 qp_num;
133 __u32 reserved;
134 __u8 private_data[RDMA_MAX_PRIVATE_DATA];
135 __u8 private_data_len;
136 __u8 srq;
137 __u8 responder_resources;
138 __u8 initiator_depth;
139 __u8 flow_control;
140 __u8 retry_count;
141 __u8 rnr_retry_count;
142 __u8 valid;
143 };
144
145 struct rdma_ucm_ud_param {
146 __u32 qp_num;
147 __u32 qkey;
148 struct ib_uverbs_ah_attr ah_attr;
149 __u8 private_data[RDMA_MAX_PRIVATE_DATA];
150 __u8 private_data_len;
151 __u8 reserved[7];
152 };
153
154 struct rdma_ucm_connect {
155 struct rdma_ucm_conn_param conn_param;
156 __u32 id;
157 __u32 reserved;
158 };
159
160 struct rdma_ucm_listen {
161 __u32 id;
162 __u32 backlog;
163 };
164
165 struct rdma_ucm_accept {
166 __u64 uid;
167 struct rdma_ucm_conn_param conn_param;
168 __u32 id;
169 __u32 reserved;
170 };
171
172 struct rdma_ucm_reject {
173 __u32 id;
174 __u8 private_data_len;
175 __u8 reserved[3];
176 __u8 private_data[RDMA_MAX_PRIVATE_DATA];
177 };
178
179 struct rdma_ucm_disconnect {
180 __u32 id;
181 };
182
183 struct rdma_ucm_init_qp_attr {
184 __u64 response;
185 __u32 id;
186 __u32 qp_state;
187 };
188
189 struct rdma_ucm_notify {
190 __u32 id;
191 __u32 event;
192 };
193
194 struct rdma_ucm_join_mcast {
195 __u64 response; /* rdma_ucm_create_id_resp */
196 __u64 uid;
197 struct sockaddr_in6 addr;
198 __u32 id;
199 };
200
201 struct rdma_ucm_get_event {
202 __u64 response;
203 };
204
205 struct rdma_ucm_event_resp {
206 __u64 uid;
207 __u32 id;
208 __u32 event;
209 __u32 status;
210 union {
211 struct rdma_ucm_conn_param conn;
212 struct rdma_ucm_ud_param ud;
213 } param;
214 };
215
216 /* Option levels */
217 enum {
218 RDMA_OPTION_ID = 0
219 };
220
221 /* Option details */
222 enum {
223 RDMA_OPTION_ID_TOS = 0
224 };
225
226 struct rdma_ucm_set_option {
227 __u64 optval;
228 __u32 id;
229 __u32 level;
230 __u32 optname;
231 __u32 optlen;
232 };
233
234 struct rdma_ucm_migrate_id {
235 __u64 response;
236 __u32 id;
237 __u32 fd;
238 };
239
240 struct rdma_ucm_migrate_resp {
241 __u32 events_reported;
242 };
243
244 #endif /* RDMA_USER_CM_H */
245
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