kernel/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/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
  46 enum {
  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  * command ABI structures.
  74  */
  75 struct rdma_ucm_cmd_hdr {
  76         __u32 cmd;
  77         __u16 in;
  78         __u16 out;
  79 };
  80
  81 struct rdma_ucm_create_id {
  82         __u64 uid;
  83         __u64 response;
  84         __u16 ps;
  85         __u8  qp_type;
  86         __u8  reserved[5];
  87 };
  88
  89 struct rdma_ucm_create_id_resp {
  90         __u32 id;
  91 };
  92
  93 struct rdma_ucm_destroy_id {
  94         __u64 response;
  95         __u32 id;
  96         __u32 reserved;
  97 };
  98
  99 struct rdma_ucm_destroy_id_resp {
 100         __u32 events_reported;
 101 };
 102
 103 struct rdma_ucm_bind_ip {
 104         __u64 response;
 105         struct sockaddr_in6 addr;
 106         __u32 id;
 107 };
 108
 109 struct rdma_ucm_bind {
 110         __u32 id;
 111         __u16 addr_size;
 112         __u16 reserved;
 113         struct sockaddr_storage addr;
 114 };
 115
 116 struct 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
 123 struct rdma_ucm_resolve_addr {
 124         __u32 id;
 125         __u32 timeout_ms;
 126         __u16 src_size;
 127         __u16 dst_size;
 128         __u32 reserved;
 129         struct sockaddr_storage src_addr;
 130         struct sockaddr_storage dst_addr;
 131 };
 132
 133 struct rdma_ucm_resolve_route {
 134         __u32 id;
 135         __u32 timeout_ms;
 136 };
 137
 138 enum {
 139         RDMA_USER_CM_QUERY_ADDR,
 140         RDMA_USER_CM_QUERY_PATH,
 141         RDMA_USER_CM_QUERY_GID
 142 };
 143
 144 struct rdma_ucm_query {
 145         __u64 response;
 146         __u32 id;
 147         __u32 option;
 148 };
 149
 150 struct 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
 160 struct 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 sockaddr_storage src_addr;
 168         struct sockaddr_storage dst_addr;
 169 };
 170
 171 struct rdma_ucm_query_path_resp {
 172         __u32 num_paths;
 173         __u32 reserved;
 174         struct ib_path_rec_data path_data[0];
 175 };
 176
 177 struct 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
 191 struct 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
 200 struct rdma_ucm_connect {
 201         struct rdma_ucm_conn_param conn_param;
 202         __u32 id;
 203         __u32 reserved;
 204 };
 205
 206 struct rdma_ucm_listen {
 207         __u32 id;
 208         __u32 backlog;
 209 };
 210
 211 struct rdma_ucm_accept {
 212         __u64 uid;
 213         struct rdma_ucm_conn_param conn_param;
 214         __u32 id;
 215         __u32 reserved;
 216 };
 217
 218 struct 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
 225 struct rdma_ucm_disconnect {
 226         __u32 id;
 227 };
 228
 229 struct rdma_ucm_init_qp_attr {
 230         __u64 response;
 231         __u32 id;
 232         __u32 qp_state;
 233 };
 234
 235 struct rdma_ucm_notify {
 236         __u32 id;
 237         __u32 event;
 238 };
 239
 240 struct rdma_ucm_join_ip_mcast {
 241         __u64 response;         /* rdma_ucm_create_id_resp */
 242         __u64 uid;
 243         struct sockaddr_in6 addr;
 244         __u32 id;
 245 };
 246
 247 struct rdma_ucm_join_mcast {
 248         __u64 response;         /* rdma_ucma_create_id_resp */
 249         __u64 uid;
 250         __u32 id;
 251         __u16 addr_size;
 252         __u16 reserved;
 253         struct sockaddr_storage addr;
 254 };
 255
 256 struct rdma_ucm_get_event {
 257         __u64 response;
 258 };
 259
 260 struct rdma_ucm_event_resp {
 261         __u64 uid;
 262         __u32 id;
 263         __u32 event;
 264         __u32 status;
 265         union {
 266                 struct rdma_ucm_conn_param conn;
 267                 struct rdma_ucm_ud_param   ud;
 268         } param;
 269 };
 270
 271 /* Option levels */
 272 enum {
 273         RDMA_OPTION_ID          = 0,
 274         RDMA_OPTION_IB          = 1
 275 };
 276
 277 /* Option details */
 278 enum {
 279         RDMA_OPTION_ID_TOS       = 0,
 280         RDMA_OPTION_ID_REUSEADDR = 1,
 281         RDMA_OPTION_ID_AFONLY    = 2,
 282         RDMA_OPTION_IB_PATH      = 1
 283 };
 284
 285 struct rdma_ucm_set_option {
 286         __u64 optval;
 287         __u32 id;
 288         __u32 level;
 289         __u32 optname;
 290         __u32 optlen;
 291 };
 292
 293 struct rdma_ucm_migrate_id {
 294         __u64 response;
 295         __u32 id;
 296         __u32 fd;
 297 };
 298
 299 struct rdma_ucm_migrate_resp {
 300         __u32 events_reported;
 301 };
 302
 303 #endif /* RDMA_USER_CM_H */