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_IP, 49 RDMA_USER_CM_CMD_RESOLVE_IP, 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_IP_MCAST, 63 RDMA_USER_CM_CMD_LEAVE_MCAST, 64 RDMA_USER_CM_CMD_MIGRATE_ID, 65 RDMA_USER_CM_CMD_QUERY, 66 RDMA_USER_CM_CMD_BIND, 67 RDMA_USER_CM_CMD_RESOLVE_ADDR 68 }; 69 70 /* 71 * command ABI structures. 72 */ 73 struct rdma_ucm_cmd_hdr { 74 __u32 cmd; 75 __u16 in; 76 __u16 out; 77 }; 78 79 struct rdma_ucm_create_id { 80 __u64 uid; 81 __u64 response; 82 __u16 ps; 83 __u8 qp_type; 84 __u8 reserved[5]; 85 }; 86 87 struct rdma_ucm_create_id_resp { 88 __u32 id; 89 }; 90 91 struct rdma_ucm_destroy_id { 92 __u64 response; 93 __u32 id; 94 __u32 reserved; 95 }; 96 97 struct rdma_ucm_destroy_id_resp { 98 __u32 events_reported; 99 }; 100 101 struct rdma_ucm_bind_ip { 102 __u64 response; 103 struct sockaddr_in6 addr; 104 __u32 id; 105 }; 106 107 struct rdma_ucm_bind { 108 __u32 id; 109 __u16 addr_size; 110 __u16 reserved; 111 struct sockaddr_storage addr; 112 }; 113 114 struct rdma_ucm_resolve_ip { 115 struct sockaddr_in6 src_addr; 116 struct sockaddr_in6 dst_addr; 117 __u32 id; 118 __u32 timeout_ms; 119 }; 120 121 struct rdma_ucm_resolve_addr { 122 __u32 id; 123 __u32 timeout_ms; 124 __u16 src_size; 125 __u16 dst_size; 126 __u32 reserved; 127 struct sockaddr_storage src_addr; 128 struct sockaddr_storage dst_addr; 129 }; 130 131 struct rdma_ucm_resolve_route { 132 __u32 id; 133 __u32 timeout_ms; 134 }; 135 136 enum { 137 RDMA_USER_CM_QUERY_ADDR, 138 RDMA_USER_CM_QUERY_PATH, 139 RDMA_USER_CM_QUERY_GID 140 }; 141 142 struct rdma_ucm_query { 143 __u64 response; 144 __u32 id; 145 __u32 option; 146 }; 147 148 struct rdma_ucm_query_route_resp { 149 __u64 node_guid; 150 struct ib_user_path_rec ib_route[2]; 151 struct sockaddr_in6 src_addr; 152 struct sockaddr_in6 dst_addr; 153 __u32 num_paths; 154 __u8 port_num; 155 __u8 reserved[3]; 156 }; 157 158 struct rdma_ucm_query_addr_resp { 159 __u64 node_guid; 160 __u8 port_num; 161 __u8 reserved; 162 __u16 pkey; 163 __u16 src_size; 164 __u16 dst_size; 165 struct sockaddr_storage src_addr; 166 struct sockaddr_storage dst_addr; 167 }; 168 169 struct rdma_ucm_query_path_resp { 170 __u32 num_paths; 171 __u32 reserved; 172 struct ib_path_rec_data path_data[0]; 173 }; 174 175 struct rdma_ucm_conn_param { 176 __u32 qp_num; 177 __u32 qkey; 178 __u8 private_data[RDMA_MAX_PRIVATE_DATA]; 179 __u8 private_data_len; 180 __u8 srq; 181 __u8 responder_resources; 182 __u8 initiator_depth; 183 __u8 flow_control; 184 __u8 retry_count; 185 __u8 rnr_retry_count; 186 __u8 valid; 187 }; 188 189 struct rdma_ucm_ud_param { 190 __u32 qp_num; 191 __u32 qkey; 192 struct ib_uverbs_ah_attr ah_attr; 193 __u8 private_data[RDMA_MAX_PRIVATE_DATA]; 194 __u8 private_data_len; 195 __u8 reserved[7]; 196 }; 197 198 struct rdma_ucm_connect { 199 struct rdma_ucm_conn_param conn_param; 200 __u32 id; 201 __u32 reserved; 202 }; 203 204 struct rdma_ucm_listen { 205 __u32 id; 206 __u32 backlog; 207 }; 208 209 struct rdma_ucm_accept { 210 __u64 uid; 211 struct rdma_ucm_conn_param conn_param; 212 __u32 id; 213 __u32 reserved; 214 }; 215 216 struct rdma_ucm_reject { 217 __u32 id; 218 __u8 private_data_len; 219 __u8 reserved[3]; 220 __u8 private_data[RDMA_MAX_PRIVATE_DATA]; 221 }; 222 223 struct rdma_ucm_disconnect { 224 __u32 id; 225 }; 226 227 struct rdma_ucm_init_qp_attr { 228 __u64 response; 229 __u32 id; 230 __u32 qp_state; 231 }; 232 233 struct rdma_ucm_notify { 234 __u32 id; 235 __u32 event; 236 }; 237 238 struct rdma_ucm_join_ip_mcast { 239 __u64 response; /* rdma_ucm_create_id_resp */ 240 __u64 uid; 241 struct sockaddr_in6 addr; 242 __u32 id; 243 }; 244 245 struct rdma_ucm_get_event { 246 __u64 response; 247 }; 248 249 struct rdma_ucm_event_resp { 250 __u64 uid; 251 __u32 id; 252 __u32 event; 253 __u32 status; 254 union { 255 struct rdma_ucm_conn_param conn; 256 struct rdma_ucm_ud_param ud; 257 } param; 258 }; 259 260 /* Option levels */ 261 enum { 262 RDMA_OPTION_ID = 0, 263 RDMA_OPTION_IB = 1 264 }; 265 266 /* Option details */ 267 enum { 268 RDMA_OPTION_ID_TOS = 0, 269 RDMA_OPTION_ID_REUSEADDR = 1, 270 RDMA_OPTION_ID_AFONLY = 2, 271 RDMA_OPTION_IB_PATH = 1 272 }; 273 274 struct rdma_ucm_set_option { 275 __u64 optval; 276 __u32 id; 277 __u32 level; 278 __u32 optname; 279 __u32 optlen; 280 }; 281 282 struct rdma_ucm_migrate_id { 283 __u64 response; 284 __u32 id; 285 __u32 fd; 286 }; 287 288 struct rdma_ucm_migrate_resp { 289 __u32 events_reported; 290 }; 291 292 #endif /* RDMA_USER_CM_H */ 293