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