include/uapi/rdma/rdma_user_cm.h

   1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
   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 /*
  74  * command ABI structures.
  75  */
  76 struct rdma_ucm_cmd_hdr {
  77         __u32 cmd;
  78         __u16 in;
  79         __u16 out;
  80 };
  81
  82 struct rdma_ucm_create_id {
  83         __u64 uid;
  84         __u64 response;
  85         __u16 ps;
  86         __u8  qp_type;
  87         __u8  reserved[5];
  88 };
  89
  90 struct rdma_ucm_create_id_resp {
  91         __u32 id;
  92 };
  93
  94 struct rdma_ucm_destroy_id {
  95         __u64 response;
  96         __u32 id;
  97         __u32 reserved;
  98 };
  99
 100 struct rdma_ucm_destroy_id_resp {
 101         __u32 events_reported;
 102 };
 103
 104 struct rdma_ucm_bind_ip {
 105         __u64 response;
 106         struct sockaddr_in6 addr;
 107         __u32 id;
 108 };
 109
 110 struct rdma_ucm_bind {
 111         __u32 id;
 112         __u16 addr_size;
 113         __u16 reserved;
 114         struct __kernel_sockaddr_storage addr;
 115 };
 116
 117 struct rdma_ucm_resolve_ip {
 118         struct sockaddr_in6 src_addr;
 119         struct sockaddr_in6 dst_addr;
 120         __u32 id;
 121         __u32 timeout_ms;
 122 };
 123
 124 struct rdma_ucm_resolve_addr {
 125         __u32 id;
 126         __u32 timeout_ms;
 127         __u16 src_size;
 128         __u16 dst_size;
 129         __u32 reserved;
 130         struct __kernel_sockaddr_storage src_addr;
 131         struct __kernel_sockaddr_storage dst_addr;
 132 };
 133
 134 struct rdma_ucm_resolve_route {
 135         __u32 id;
 136         __u32 timeout_ms;
 137 };
 138
 139 enum {
 140         RDMA_USER_CM_QUERY_ADDR,
 141         RDMA_USER_CM_QUERY_PATH,
 142         RDMA_USER_CM_QUERY_GID
 143 };
 144
 145 struct rdma_ucm_query {
 146         __u64 response;
 147         __u32 id;
 148         __u32 option;
 149 };
 150
 151 struct rdma_ucm_query_route_resp {
 152         __u64 node_guid;
 153         struct ib_user_path_rec ib_route[2];
 154         struct sockaddr_in6 src_addr;
 155         struct sockaddr_in6 dst_addr;
 156         __u32 num_paths;
 157         __u8 port_num;
 158         __u8 reserved[3];
 159 };
 160
 161 struct rdma_ucm_query_addr_resp {
 162         __u64 node_guid;
 163         __u8  port_num;
 164         __u8  reserved;
 165         __u16 pkey;
 166         __u16 src_size;
 167         __u16 dst_size;
 168         struct __kernel_sockaddr_storage src_addr;
 169         struct __kernel_sockaddr_storage dst_addr;
 170 };
 171
 172 struct rdma_ucm_query_path_resp {
 173         __u32 num_paths;
 174         __u32 reserved;
 175         struct ib_path_rec_data path_data[0];
 176 };
 177
 178 struct rdma_ucm_conn_param {
 179         __u32 qp_num;
 180         __u32 qkey;
 181         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 182         __u8  private_data_len;
 183         __u8  srq;
 184         __u8  responder_resources;
 185         __u8  initiator_depth;
 186         __u8  flow_control;
 187         __u8  retry_count;
 188         __u8  rnr_retry_count;
 189         __u8  valid;
 190 };
 191
 192 struct rdma_ucm_ud_param {
 193         __u32 qp_num;
 194         __u32 qkey;
 195         struct ib_uverbs_ah_attr ah_attr;
 196         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 197         __u8  private_data_len;
 198         __u8  reserved[7];
 199 };
 200
 201 struct rdma_ucm_connect {
 202         struct rdma_ucm_conn_param conn_param;
 203         __u32 id;
 204         __u32 reserved;
 205 };
 206
 207 struct rdma_ucm_listen {
 208         __u32 id;
 209         __u32 backlog;
 210 };
 211
 212 struct rdma_ucm_accept {
 213         __u64 uid;
 214         struct rdma_ucm_conn_param conn_param;
 215         __u32 id;
 216         __u32 reserved;
 217 };
 218
 219 struct rdma_ucm_reject {
 220         __u32 id;
 221         __u8  private_data_len;
 222         __u8  reserved[3];
 223         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 224 };
 225
 226 struct rdma_ucm_disconnect {
 227         __u32 id;
 228 };
 229
 230 struct rdma_ucm_init_qp_attr {
 231         __u64 response;
 232         __u32 id;
 233         __u32 qp_state;
 234 };
 235
 236 struct rdma_ucm_notify {
 237         __u32 id;
 238         __u32 event;
 239 };
 240
 241 struct rdma_ucm_join_ip_mcast {
 242         __u64 response;         /* rdma_ucm_create_id_resp */
 243         __u64 uid;
 244         struct sockaddr_in6 addr;
 245         __u32 id;
 246 };
 247
 248 /* Multicast join flags */
 249 enum {
 250         RDMA_MC_JOIN_FLAG_FULLMEMBER,
 251         RDMA_MC_JOIN_FLAG_SENDONLY_FULLMEMBER,
 252         RDMA_MC_JOIN_FLAG_RESERVED,
 253 };
 254
 255 struct rdma_ucm_join_mcast {
 256         __u64 response;         /* rdma_ucma_create_id_resp */
 257         __u64 uid;
 258         __u32 id;
 259         __u16 addr_size;
 260         __u16 join_flags;
 261         struct __kernel_sockaddr_storage addr;
 262 };
 263
 264 struct rdma_ucm_get_event {
 265         __u64 response;
 266 };
 267
 268 struct rdma_ucm_event_resp {
 269         __u64 uid;
 270         __u32 id;
 271         __u32 event;
 272         __u32 status;
 273         union {
 274                 struct rdma_ucm_conn_param conn;
 275                 struct rdma_ucm_ud_param   ud;
 276         } param;
 277 };
 278
 279 /* Option levels */
 280 enum {
 281         RDMA_OPTION_ID          = 0,
 282         RDMA_OPTION_IB          = 1
 283 };
 284
 285 /* Option details */
 286 enum {
 287         RDMA_OPTION_ID_TOS       = 0,
 288         RDMA_OPTION_ID_REUSEADDR = 1,
 289         RDMA_OPTION_ID_AFONLY    = 2,
 290         RDMA_OPTION_IB_PATH      = 1
 291 };
 292
 293 struct rdma_ucm_set_option {
 294         __u64 optval;
 295         __u32 id;
 296         __u32 level;
 297         __u32 optname;
 298         __u32 optlen;
 299 };
 300
 301 struct rdma_ucm_migrate_id {
 302         __u64 response;
 303         __u32 id;
 304         __u32 fd;
 305 };
 306
 307 struct rdma_ucm_migrate_resp {
 308         __u32 events_reported;
 309 };
 310
 311 #endif /* RDMA_USER_CM_H */