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Linux kernel mirror (for testing)
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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
45enum {
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 */
70struct rdma_ucm_cmd_hdr {
71 __u32 cmd;
72 __u16 in;
73 __u16 out;
74};
75
76struct rdma_ucm_create_id {
77 __u64 uid;
78 __u64 response;
79 __u16 ps;
80 __u8 qp_type;
81 __u8 reserved[5];
82};
83
84struct rdma_ucm_create_id_resp {
85 __u32 id;
86};
87
88struct rdma_ucm_destroy_id {
89 __u64 response;
90 __u32 id;
91 __u32 reserved;
92};
93
94struct rdma_ucm_destroy_id_resp {
95 __u32 events_reported;
96};
97
98struct rdma_ucm_bind_addr {
99 __u64 response;
100 struct sockaddr_in6 addr;
101 __u32 id;
102};
103
104struct rdma_ucm_resolve_addr {
105 struct sockaddr_in6 src_addr;
106 struct sockaddr_in6 dst_addr;
107 __u32 id;
108 __u32 timeout_ms;
109};
110
111struct rdma_ucm_resolve_route {
112 __u32 id;
113 __u32 timeout_ms;
114};
115
116struct rdma_ucm_query_route {
117 __u64 response;
118 __u32 id;
119 __u32 reserved;
120};
121
122struct rdma_ucm_query_route_resp {
123 __u64 node_guid;
124 struct ib_user_path_rec ib_route[2];
125 struct sockaddr_in6 src_addr;
126 struct sockaddr_in6 dst_addr;
127 __u32 num_paths;
128 __u8 port_num;
129 __u8 reserved[3];
130};
131
132struct rdma_ucm_conn_param {
133 __u32 qp_num;
134 __u32 reserved;
135 __u8 private_data[RDMA_MAX_PRIVATE_DATA];
136 __u8 private_data_len;
137 __u8 srq;
138 __u8 responder_resources;
139 __u8 initiator_depth;
140 __u8 flow_control;
141 __u8 retry_count;
142 __u8 rnr_retry_count;
143 __u8 valid;
144};
145
146struct rdma_ucm_ud_param {
147 __u32 qp_num;
148 __u32 qkey;
149 struct ib_uverbs_ah_attr ah_attr;
150 __u8 private_data[RDMA_MAX_PRIVATE_DATA];
151 __u8 private_data_len;
152 __u8 reserved[7];
153};
154
155struct rdma_ucm_connect {
156 struct rdma_ucm_conn_param conn_param;
157 __u32 id;
158 __u32 reserved;
159};
160
161struct rdma_ucm_listen {
162 __u32 id;
163 __u32 backlog;
164};
165
166struct rdma_ucm_accept {
167 __u64 uid;
168 struct rdma_ucm_conn_param conn_param;
169 __u32 id;
170 __u32 reserved;
171};
172
173struct rdma_ucm_reject {
174 __u32 id;
175 __u8 private_data_len;
176 __u8 reserved[3];
177 __u8 private_data[RDMA_MAX_PRIVATE_DATA];
178};
179
180struct rdma_ucm_disconnect {
181 __u32 id;
182};
183
184struct rdma_ucm_init_qp_attr {
185 __u64 response;
186 __u32 id;
187 __u32 qp_state;
188};
189
190struct rdma_ucm_notify {
191 __u32 id;
192 __u32 event;
193};
194
195struct rdma_ucm_join_mcast {
196 __u64 response; /* rdma_ucm_create_id_resp */
197 __u64 uid;
198 struct sockaddr_in6 addr;
199 __u32 id;
200};
201
202struct rdma_ucm_get_event {
203 __u64 response;
204};
205
206struct rdma_ucm_event_resp {
207 __u64 uid;
208 __u32 id;
209 __u32 event;
210 __u32 status;
211 union {
212 struct rdma_ucm_conn_param conn;
213 struct rdma_ucm_ud_param ud;
214 } param;
215};
216
217/* Option levels */
218enum {
219 RDMA_OPTION_ID = 0,
220 RDMA_OPTION_IB = 1
221};
222
223/* Option details */
224enum {
225 RDMA_OPTION_ID_TOS = 0,
226 RDMA_OPTION_ID_REUSEADDR = 1,
227 RDMA_OPTION_ID_AFONLY = 2,
228 RDMA_OPTION_IB_PATH = 1
229};
230
231struct rdma_ucm_set_option {
232 __u64 optval;
233 __u32 id;
234 __u32 level;
235 __u32 optname;
236 __u32 optlen;
237};
238
239struct rdma_ucm_migrate_id {
240 __u64 response;
241 __u32 id;
242 __u32 fd;
243};
244
245struct rdma_ucm_migrate_resp {
246 __u32 events_reported;
247};
248
249#endif /* RDMA_USER_CM_H */