include/uapi/rdma/rdma_user_cm.h

   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         RDMA_USER_CM_CMD_JOIN_MCAST
  69 };
  70
  71 /*
  72  * command ABI structures.
  73  */
  74 struct rdma_ucm_cmd_hdr {
  75         __u32 cmd;
  76         __u16 in;
  77         __u16 out;
  78 };
  79
  80 struct rdma_ucm_create_id {
  81         __u64 uid;
  82         __u64 response;
  83         __u16 ps;
  84         __u8  qp_type;
  85         __u8  reserved[5];
  86 };
  87
  88 struct rdma_ucm_create_id_resp {
  89         __u32 id;
  90 };
  91
  92 struct rdma_ucm_destroy_id {
  93         __u64 response;
  94         __u32 id;
  95         __u32 reserved;
  96 };
  97
  98 struct rdma_ucm_destroy_id_resp {
  99         __u32 events_reported;
 100 };
 101
 102 struct rdma_ucm_bind_ip {
 103         __u64 response;
 104         struct sockaddr_in6 addr;
 105         __u32 id;
 106 };
 107
 108 struct rdma_ucm_bind {
 109         __u32 id;
 110         __u16 addr_size;
 111         __u16 reserved;
 112         struct sockaddr_storage addr;
 113 };
 114
 115 struct rdma_ucm_resolve_ip {
 116         struct sockaddr_in6 src_addr;
 117         struct sockaddr_in6 dst_addr;
 118         __u32 id;
 119         __u32 timeout_ms;
 120 };
 121
 122 struct rdma_ucm_resolve_addr {
 123         __u32 id;
 124         __u32 timeout_ms;
 125         __u16 src_size;
 126         __u16 dst_size;
 127         __u32 reserved;
 128         struct sockaddr_storage src_addr;
 129         struct sockaddr_storage dst_addr;
 130 };
 131
 132 struct rdma_ucm_resolve_route {
 133         __u32 id;
 134         __u32 timeout_ms;
 135 };
 136
 137 enum {
 138         RDMA_USER_CM_QUERY_ADDR,
 139         RDMA_USER_CM_QUERY_PATH,
 140         RDMA_USER_CM_QUERY_GID
 141 };
 142
 143 struct rdma_ucm_query {
 144         __u64 response;
 145         __u32 id;
 146         __u32 option;
 147 };
 148
 149 struct rdma_ucm_query_route_resp {
 150         __u64 node_guid;
 151         struct ib_user_path_rec ib_route[2];
 152         struct sockaddr_in6 src_addr;
 153         struct sockaddr_in6 dst_addr;
 154         __u32 num_paths;
 155         __u8 port_num;
 156         __u8 reserved[3];
 157 };
 158
 159 struct rdma_ucm_query_addr_resp {
 160         __u64 node_guid;
 161         __u8  port_num;
 162         __u8  reserved;
 163         __u16 pkey;
 164         __u16 src_size;
 165         __u16 dst_size;
 166         struct sockaddr_storage src_addr;
 167         struct sockaddr_storage dst_addr;
 168 };
 169
 170 struct rdma_ucm_query_path_resp {
 171         __u32 num_paths;
 172         __u32 reserved;
 173         struct ib_path_rec_data path_data[0];
 174 };
 175
 176 struct rdma_ucm_conn_param {
 177         __u32 qp_num;
 178         __u32 qkey;
 179         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 180         __u8  private_data_len;
 181         __u8  srq;
 182         __u8  responder_resources;
 183         __u8  initiator_depth;
 184         __u8  flow_control;
 185         __u8  retry_count;
 186         __u8  rnr_retry_count;
 187         __u8  valid;
 188 };
 189
 190 struct rdma_ucm_ud_param {
 191         __u32 qp_num;
 192         __u32 qkey;
 193         struct ib_uverbs_ah_attr ah_attr;
 194         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 195         __u8  private_data_len;
 196         __u8  reserved[7];
 197 };
 198
 199 struct rdma_ucm_connect {
 200         struct rdma_ucm_conn_param conn_param;
 201         __u32 id;
 202         __u32 reserved;
 203 };
 204
 205 struct rdma_ucm_listen {
 206         __u32 id;
 207         __u32 backlog;
 208 };
 209
 210 struct rdma_ucm_accept {
 211         __u64 uid;
 212         struct rdma_ucm_conn_param conn_param;
 213         __u32 id;
 214         __u32 reserved;
 215 };
 216
 217 struct rdma_ucm_reject {
 218         __u32 id;
 219         __u8  private_data_len;
 220         __u8  reserved[3];
 221         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 222 };
 223
 224 struct rdma_ucm_disconnect {
 225         __u32 id;
 226 };
 227
 228 struct rdma_ucm_init_qp_attr {
 229         __u64 response;
 230         __u32 id;
 231         __u32 qp_state;
 232 };
 233
 234 struct rdma_ucm_notify {
 235         __u32 id;
 236         __u32 event;
 237 };
 238
 239 struct rdma_ucm_join_ip_mcast {
 240         __u64 response;         /* rdma_ucm_create_id_resp */
 241         __u64 uid;
 242         struct sockaddr_in6 addr;
 243         __u32 id;
 244 };
 245
 246 struct rdma_ucm_join_mcast {
 247         __u64 response;         /* rdma_ucma_create_id_resp */
 248         __u64 uid;
 249         __u32 id;
 250         __u16 addr_size;
 251         __u16 reserved;
 252         struct sockaddr_storage addr;
 253 };
 254
 255 struct rdma_ucm_get_event {
 256         __u64 response;
 257 };
 258
 259 struct rdma_ucm_event_resp {
 260         __u64 uid;
 261         __u32 id;
 262         __u32 event;
 263         __u32 status;
 264         union {
 265                 struct rdma_ucm_conn_param conn;
 266                 struct rdma_ucm_ud_param   ud;
 267         } param;
 268 };
 269
 270 /* Option levels */
 271 enum {
 272         RDMA_OPTION_ID          = 0,
 273         RDMA_OPTION_IB          = 1
 274 };
 275
 276 /* Option details */
 277 enum {
 278         RDMA_OPTION_ID_TOS       = 0,
 279         RDMA_OPTION_ID_REUSEADDR = 1,
 280         RDMA_OPTION_ID_AFONLY    = 2,
 281         RDMA_OPTION_IB_PATH      = 1
 282 };
 283
 284 struct rdma_ucm_set_option {
 285         __u64 optval;
 286         __u32 id;
 287         __u32 level;
 288         __u32 optname;
 289         __u32 optlen;
 290 };
 291
 292 struct rdma_ucm_migrate_id {
 293         __u64 response;
 294         __u32 id;
 295         __u32 fd;
 296 };
 297
 298 struct rdma_ucm_migrate_resp {
 299         __u32 events_reported;
 300 };
 301
 302 #endif /* RDMA_USER_CM_H */