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TOMOYO Linux Cross Reference
Linux/include/uapi/rdma/rdma_user_cm.h

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  1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR Linux-OpenIB) */
  2 /*
  3  * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.
  4  *
  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:
 10  *
 11  *     Redistribution and use in source and binary forms, with or
 12  *     without modification, are permitted provided that the following
 13  *     conditions are met:
 14  *
 15  *      - Redistributions of source code must retain the above
 16  *        copyright notice, this list of conditions and the following
 17  *        disclaimer.
 18  *
 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.
 23  *
 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
 31  * SOFTWARE.
 32  */
 33 
 34 #ifndef RDMA_USER_CM_H
 35 #define RDMA_USER_CM_H
 36 
 37 #include <linux/types.h>
 38 #include <linux/socket.h>
 39 #include <linux/in6.h>
 40 #include <rdma/ib_user_verbs.h>
 41 #include <rdma/ib_user_sa.h>
 42 
 43 #define RDMA_USER_CM_ABI_VERSION        4
 44 
 45 #define RDMA_MAX_PRIVATE_DATA           256
 46 
 47 enum {
 48         RDMA_USER_CM_CMD_CREATE_ID,
 49         RDMA_USER_CM_CMD_DESTROY_ID,
 50         RDMA_USER_CM_CMD_BIND_IP,
 51         RDMA_USER_CM_CMD_RESOLVE_IP,
 52         RDMA_USER_CM_CMD_RESOLVE_ROUTE,
 53         RDMA_USER_CM_CMD_QUERY_ROUTE,
 54         RDMA_USER_CM_CMD_CONNECT,
 55         RDMA_USER_CM_CMD_LISTEN,
 56         RDMA_USER_CM_CMD_ACCEPT,
 57         RDMA_USER_CM_CMD_REJECT,
 58         RDMA_USER_CM_CMD_DISCONNECT,
 59         RDMA_USER_CM_CMD_INIT_QP_ATTR,
 60         RDMA_USER_CM_CMD_GET_EVENT,
 61         RDMA_USER_CM_CMD_GET_OPTION,
 62         RDMA_USER_CM_CMD_SET_OPTION,
 63         RDMA_USER_CM_CMD_NOTIFY,
 64         RDMA_USER_CM_CMD_JOIN_IP_MCAST,
 65         RDMA_USER_CM_CMD_LEAVE_MCAST,
 66         RDMA_USER_CM_CMD_MIGRATE_ID,
 67         RDMA_USER_CM_CMD_QUERY,
 68         RDMA_USER_CM_CMD_BIND,
 69         RDMA_USER_CM_CMD_RESOLVE_ADDR,
 70         RDMA_USER_CM_CMD_JOIN_MCAST
 71 };
 72 
 73 /* See IBTA Annex A11, servies ID bytes 4 & 5 */
 74 enum rdma_ucm_port_space {
 75         RDMA_PS_IPOIB = 0x0002,
 76         RDMA_PS_IB    = 0x013F,
 77         RDMA_PS_TCP   = 0x0106,
 78         RDMA_PS_UDP   = 0x0111,
 79 };
 80 
 81 /*
 82  * command ABI structures.
 83  */
 84 struct rdma_ucm_cmd_hdr {
 85         __u32 cmd;
 86         __u16 in;
 87         __u16 out;
 88 };
 89 
 90 struct rdma_ucm_create_id {
 91         __aligned_u64 uid;
 92         __aligned_u64 response;
 93         __u16 ps;                  /* use enum rdma_ucm_port_space */
 94         __u8  qp_type;
 95         __u8  reserved[5];
 96 };
 97 
 98 struct rdma_ucm_create_id_resp {
 99         __u32 id;
100 };
101 
102 struct rdma_ucm_destroy_id {
103         __aligned_u64 response;
104         __u32 id;
105         __u32 reserved;
106 };
107 
108 struct rdma_ucm_destroy_id_resp {
109         __u32 events_reported;
110 };
111 
112 struct rdma_ucm_bind_ip {
113         __aligned_u64 response;
114         struct sockaddr_in6 addr;
115         __u32 id;
116 };
117 
118 struct rdma_ucm_bind {
119         __u32 id;
120         __u16 addr_size;
121         __u16 reserved;
122         struct __kernel_sockaddr_storage addr;
123 };
124 
125 struct rdma_ucm_resolve_ip {
126         struct sockaddr_in6 src_addr;
127         struct sockaddr_in6 dst_addr;
128         __u32 id;
129         __u32 timeout_ms;
130 };
131 
132 struct rdma_ucm_resolve_addr {
133         __u32 id;
134         __u32 timeout_ms;
135         __u16 src_size;
136         __u16 dst_size;
137         __u32 reserved;
138         struct __kernel_sockaddr_storage src_addr;
139         struct __kernel_sockaddr_storage dst_addr;
140 };
141 
142 struct rdma_ucm_resolve_route {
143         __u32 id;
144         __u32 timeout_ms;
145 };
146 
147 enum {
148         RDMA_USER_CM_QUERY_ADDR,
149         RDMA_USER_CM_QUERY_PATH,
150         RDMA_USER_CM_QUERY_GID
151 };
152 
153 struct rdma_ucm_query {
154         __aligned_u64 response;
155         __u32 id;
156         __u32 option;
157 };
158 
159 struct rdma_ucm_query_route_resp {
160         __aligned_u64 node_guid;
161         struct ib_user_path_rec ib_route[2];
162         struct sockaddr_in6 src_addr;
163         struct sockaddr_in6 dst_addr;
164         __u32 num_paths;
165         __u8 port_num;
166         __u8 reserved[3];
167 };
168 
169 struct rdma_ucm_query_addr_resp {
170         __aligned_u64 node_guid;
171         __u8  port_num;
172         __u8  reserved;
173         __u16 pkey;
174         __u16 src_size;
175         __u16 dst_size;
176         struct __kernel_sockaddr_storage src_addr;
177         struct __kernel_sockaddr_storage dst_addr;
178 };
179 
180 struct rdma_ucm_query_path_resp {
181         __u32 num_paths;
182         __u32 reserved;
183         struct ib_path_rec_data path_data[0];
184 };
185 
186 struct rdma_ucm_conn_param {
187         __u32 qp_num;
188         __u32 qkey;
189         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
190         __u8  private_data_len;
191         __u8  srq;
192         __u8  responder_resources;
193         __u8  initiator_depth;
194         __u8  flow_control;
195         __u8  retry_count;
196         __u8  rnr_retry_count;
197         __u8  valid;
198 };
199 
200 struct rdma_ucm_ud_param {
201         __u32 qp_num;
202         __u32 qkey;
203         struct ib_uverbs_ah_attr ah_attr;
204         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
205         __u8  private_data_len;
206         __u8  reserved[7];
207 };
208 
209 struct rdma_ucm_connect {
210         struct rdma_ucm_conn_param conn_param;
211         __u32 id;
212         __u32 reserved;
213 };
214 
215 struct rdma_ucm_listen {
216         __u32 id;
217         __u32 backlog;
218 };
219 
220 struct rdma_ucm_accept {
221         __aligned_u64 uid;
222         struct rdma_ucm_conn_param conn_param;
223         __u32 id;
224         __u32 reserved;
225 };
226 
227 struct rdma_ucm_reject {
228         __u32 id;
229         __u8  private_data_len;
230         __u8  reserved[3];
231         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
232 };
233 
234 struct rdma_ucm_disconnect {
235         __u32 id;
236 };
237 
238 struct rdma_ucm_init_qp_attr {
239         __aligned_u64 response;
240         __u32 id;
241         __u32 qp_state;
242 };
243 
244 struct rdma_ucm_notify {
245         __u32 id;
246         __u32 event;
247 };
248 
249 struct rdma_ucm_join_ip_mcast {
250         __aligned_u64 response;         /* rdma_ucm_create_id_resp */
251         __aligned_u64 uid;
252         struct sockaddr_in6 addr;
253         __u32 id;
254 };
255 
256 /* Multicast join flags */
257 enum {
258         RDMA_MC_JOIN_FLAG_FULLMEMBER,
259         RDMA_MC_JOIN_FLAG_SENDONLY_FULLMEMBER,
260         RDMA_MC_JOIN_FLAG_RESERVED,
261 };
262 
263 struct rdma_ucm_join_mcast {
264         __aligned_u64 response;         /* rdma_ucma_create_id_resp */
265         __aligned_u64 uid;
266         __u32 id;
267         __u16 addr_size;
268         __u16 join_flags;
269         struct __kernel_sockaddr_storage addr;
270 };
271 
272 struct rdma_ucm_get_event {
273         __aligned_u64 response;
274 };
275 
276 struct rdma_ucm_event_resp {
277         __aligned_u64 uid;
278         __u32 id;
279         __u32 event;
280         __u32 status;
281         /*
282          * NOTE: This union is not aligned to 8 bytes so none of the union
283          * members may contain a u64 or anything with higher alignment than 4.
284          */
285         union {
286                 struct rdma_ucm_conn_param conn;
287                 struct rdma_ucm_ud_param   ud;
288         } param;
289         __u32 reserved;
290 };
291 
292 /* Option levels */
293 enum {
294         RDMA_OPTION_ID          = 0,
295         RDMA_OPTION_IB          = 1
296 };
297 
298 /* Option details */
299 enum {
300         RDMA_OPTION_ID_TOS       = 0,
301         RDMA_OPTION_ID_REUSEADDR = 1,
302         RDMA_OPTION_ID_AFONLY    = 2,
303         RDMA_OPTION_ID_ACK_TIMEOUT = 3
304 };
305 
306 enum {
307         RDMA_OPTION_IB_PATH      = 1
308 };
309 
310 struct rdma_ucm_set_option {
311         __aligned_u64 optval;
312         __u32 id;
313         __u32 level;
314         __u32 optname;
315         __u32 optlen;
316 };
317 
318 struct rdma_ucm_migrate_id {
319         __aligned_u64 response;
320         __u32 id;
321         __u32 fd;
322 };
323 
324 struct rdma_ucm_migrate_resp {
325         __u32 events_reported;
326 };
327 
328 #endif /* RDMA_USER_CM_H */
329 

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