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33#ifndef RDMA_USER_CM_H
34#define RDMA_USER_CM_H
35
36#include <linux/types.h>
37#include <linux/socket.h>
38#include <linux/in6.h>
39#include <rdma/ib_user_verbs.h>
40#include <rdma/ib_user_sa.h>
41
42#define RDMA_USER_CM_ABI_VERSION 4
43
44#define RDMA_MAX_PRIVATE_DATA 256
45
46enum {
47 RDMA_USER_CM_CMD_CREATE_ID,
48 RDMA_USER_CM_CMD_DESTROY_ID,
49 RDMA_USER_CM_CMD_BIND_IP,
50 RDMA_USER_CM_CMD_RESOLVE_IP,
51 RDMA_USER_CM_CMD_RESOLVE_ROUTE,
52 RDMA_USER_CM_CMD_QUERY_ROUTE,
53 RDMA_USER_CM_CMD_CONNECT,
54 RDMA_USER_CM_CMD_LISTEN,
55 RDMA_USER_CM_CMD_ACCEPT,
56 RDMA_USER_CM_CMD_REJECT,
57 RDMA_USER_CM_CMD_DISCONNECT,
58 RDMA_USER_CM_CMD_INIT_QP_ATTR,
59 RDMA_USER_CM_CMD_GET_EVENT,
60 RDMA_USER_CM_CMD_GET_OPTION,
61 RDMA_USER_CM_CMD_SET_OPTION,
62 RDMA_USER_CM_CMD_NOTIFY,
63 RDMA_USER_CM_CMD_JOIN_IP_MCAST,
64 RDMA_USER_CM_CMD_LEAVE_MCAST,
65 RDMA_USER_CM_CMD_MIGRATE_ID,
66 RDMA_USER_CM_CMD_QUERY,
67 RDMA_USER_CM_CMD_BIND,
68 RDMA_USER_CM_CMD_RESOLVE_ADDR,
69 RDMA_USER_CM_CMD_JOIN_MCAST
70};
71
72
73
74
75struct rdma_ucm_cmd_hdr {
76 __u32 cmd;
77 __u16 in;
78 __u16 out;
79};
80
81struct rdma_ucm_create_id {
82 __u64 uid;
83 __u64 response;
84 __u16 ps;
85 __u8 qp_type;
86 __u8 reserved[5];
87};
88
89struct rdma_ucm_create_id_resp {
90 __u32 id;
91};
92
93struct rdma_ucm_destroy_id {
94 __u64 response;
95 __u32 id;
96 __u32 reserved;
97};
98
99struct rdma_ucm_destroy_id_resp {
100 __u32 events_reported;
101};
102
103struct rdma_ucm_bind_ip {
104 __u64 response;
105 struct sockaddr_in6 addr;
106 __u32 id;
107};
108
109struct rdma_ucm_bind {
110 __u32 id;
111 __u16 addr_size;
112 __u16 reserved;
113 struct __kernel_sockaddr_storage addr;
114};
115
116struct rdma_ucm_resolve_ip {
117 struct sockaddr_in6 src_addr;
118 struct sockaddr_in6 dst_addr;
119 __u32 id;
120 __u32 timeout_ms;
121};
122
123struct rdma_ucm_resolve_addr {
124 __u32 id;
125 __u32 timeout_ms;
126 __u16 src_size;
127 __u16 dst_size;
128 __u32 reserved;
129 struct __kernel_sockaddr_storage src_addr;
130 struct __kernel_sockaddr_storage dst_addr;
131};
132
133struct rdma_ucm_resolve_route {
134 __u32 id;
135 __u32 timeout_ms;
136};
137
138enum {
139 RDMA_USER_CM_QUERY_ADDR,
140 RDMA_USER_CM_QUERY_PATH,
141 RDMA_USER_CM_QUERY_GID
142};
143
144struct rdma_ucm_query {
145 __u64 response;
146 __u32 id;
147 __u32 option;
148};
149
150struct rdma_ucm_query_route_resp {
151 __u64 node_guid;
152 struct ib_user_path_rec ib_route[2];
153 struct sockaddr_in6 src_addr;
154 struct sockaddr_in6 dst_addr;
155 __u32 num_paths;
156 __u8 port_num;
157 __u8 reserved[3];
158};
159
160struct rdma_ucm_query_addr_resp {
161 __u64 node_guid;
162 __u8 port_num;
163 __u8 reserved;
164 __u16 pkey;
165 __u16 src_size;
166 __u16 dst_size;
167 struct __kernel_sockaddr_storage src_addr;
168 struct __kernel_sockaddr_storage dst_addr;
169};
170
171struct rdma_ucm_query_path_resp {
172 __u32 num_paths;
173 __u32 reserved;
174 struct ib_path_rec_data path_data[0];
175};
176
177struct rdma_ucm_conn_param {
178 __u32 qp_num;
179 __u32 qkey;
180 __u8 private_data[RDMA_MAX_PRIVATE_DATA];
181 __u8 private_data_len;
182 __u8 srq;
183 __u8 responder_resources;
184 __u8 initiator_depth;
185 __u8 flow_control;
186 __u8 retry_count;
187 __u8 rnr_retry_count;
188 __u8 valid;
189};
190
191struct rdma_ucm_ud_param {
192 __u32 qp_num;
193 __u32 qkey;
194 struct ib_uverbs_ah_attr ah_attr;
195 __u8 private_data[RDMA_MAX_PRIVATE_DATA];
196 __u8 private_data_len;
197 __u8 reserved[7];
198};
199
200struct rdma_ucm_connect {
201 struct rdma_ucm_conn_param conn_param;
202 __u32 id;
203 __u32 reserved;
204};
205
206struct rdma_ucm_listen {
207 __u32 id;
208 __u32 backlog;
209};
210
211struct rdma_ucm_accept {
212 __u64 uid;
213 struct rdma_ucm_conn_param conn_param;
214 __u32 id;
215 __u32 reserved;
216};
217
218struct rdma_ucm_reject {
219 __u32 id;
220 __u8 private_data_len;
221 __u8 reserved[3];
222 __u8 private_data[RDMA_MAX_PRIVATE_DATA];
223};
224
225struct rdma_ucm_disconnect {
226 __u32 id;
227};
228
229struct rdma_ucm_init_qp_attr {
230 __u64 response;
231 __u32 id;
232 __u32 qp_state;
233};
234
235struct rdma_ucm_notify {
236 __u32 id;
237 __u32 event;
238};
239
240struct rdma_ucm_join_ip_mcast {
241 __u64 response;
242 __u64 uid;
243 struct sockaddr_in6 addr;
244 __u32 id;
245};
246
247
248enum {
249 RDMA_MC_JOIN_FLAG_FULLMEMBER,
250 RDMA_MC_JOIN_FLAG_SENDONLY_FULLMEMBER,
251 RDMA_MC_JOIN_FLAG_RESERVED,
252};
253
254struct rdma_ucm_join_mcast {
255 __u64 response;
256 __u64 uid;
257 __u32 id;
258 __u16 addr_size;
259 __u16 join_flags;
260 struct __kernel_sockaddr_storage addr;
261};
262
263struct rdma_ucm_get_event {
264 __u64 response;
265};
266
267struct rdma_ucm_event_resp {
268 __u64 uid;
269 __u32 id;
270 __u32 event;
271 __u32 status;
272 union {
273 struct rdma_ucm_conn_param conn;
274 struct rdma_ucm_ud_param ud;
275 } param;
276};
277
278
279enum {
280 RDMA_OPTION_ID = 0,
281 RDMA_OPTION_IB = 1
282};
283
284
285enum {
286 RDMA_OPTION_ID_TOS = 0,
287 RDMA_OPTION_ID_REUSEADDR = 1,
288 RDMA_OPTION_ID_AFONLY = 2,
289 RDMA_OPTION_IB_PATH = 1
290};
291
292struct rdma_ucm_set_option {
293 __u64 optval;
294 __u32 id;
295 __u32 level;
296 __u32 optname;
297 __u32 optlen;
298};
299
300struct rdma_ucm_migrate_id {
301 __u64 response;
302 __u32 id;
303 __u32 fd;
304};
305
306struct rdma_ucm_migrate_resp {
307 __u32 events_reported;
308};
309
310#endif
311