linux/include/rdma/ib_user_cm.h
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   1/*
   2 * Copyright (c) 2005 Topspin Communications.  All rights reserved.
   3 * Copyright (c) 2005 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 IB_USER_CM_H
  35#define IB_USER_CM_H
  36
  37#include <linux/types.h>
  38#include <rdma/ib_user_sa.h>
  39
  40#define IB_USER_CM_ABI_VERSION 5
  41
  42enum {
  43        IB_USER_CM_CMD_CREATE_ID,
  44        IB_USER_CM_CMD_DESTROY_ID,
  45        IB_USER_CM_CMD_ATTR_ID,
  46
  47        IB_USER_CM_CMD_LISTEN,
  48        IB_USER_CM_CMD_NOTIFY,
  49
  50        IB_USER_CM_CMD_SEND_REQ,
  51        IB_USER_CM_CMD_SEND_REP,
  52        IB_USER_CM_CMD_SEND_RTU,
  53        IB_USER_CM_CMD_SEND_DREQ,
  54        IB_USER_CM_CMD_SEND_DREP,
  55        IB_USER_CM_CMD_SEND_REJ,
  56        IB_USER_CM_CMD_SEND_MRA,
  57        IB_USER_CM_CMD_SEND_LAP,
  58        IB_USER_CM_CMD_SEND_APR,
  59        IB_USER_CM_CMD_SEND_SIDR_REQ,
  60        IB_USER_CM_CMD_SEND_SIDR_REP,
  61
  62        IB_USER_CM_CMD_EVENT,
  63        IB_USER_CM_CMD_INIT_QP_ATTR,
  64};
  65/*
  66 * command ABI structures.
  67 */
  68struct ib_ucm_cmd_hdr {
  69        __u32 cmd;
  70        __u16 in;
  71        __u16 out;
  72};
  73
  74struct ib_ucm_create_id {
  75        __u64 uid;
  76        __u64 response;
  77};
  78
  79struct ib_ucm_create_id_resp {
  80        __u32 id;
  81};
  82
  83struct ib_ucm_destroy_id {
  84        __u64 response;
  85        __u32 id;
  86        __u32 reserved;
  87};
  88
  89struct ib_ucm_destroy_id_resp {
  90        __u32 events_reported;
  91};
  92
  93struct ib_ucm_attr_id {
  94        __u64 response;
  95        __u32 id;
  96        __u32 reserved;
  97};
  98
  99struct ib_ucm_attr_id_resp {
 100        __be64 service_id;
 101        __be64 service_mask;
 102        __be32 local_id;
 103        __be32 remote_id;
 104};
 105
 106struct ib_ucm_init_qp_attr {
 107        __u64 response;
 108        __u32 id;
 109        __u32 qp_state;
 110};
 111
 112struct ib_ucm_listen {
 113        __be64 service_id;
 114        __be64 service_mask;
 115        __u32 id;
 116        __u32 reserved;
 117};
 118
 119struct ib_ucm_notify {
 120        __u32 id;
 121        __u32 event;
 122};
 123
 124struct ib_ucm_private_data {
 125        __u64 data;
 126        __u32 id;
 127        __u8  len;
 128        __u8  reserved[3];
 129};
 130
 131struct ib_ucm_req {
 132        __u32 id;
 133        __u32 qpn;
 134        __u32 qp_type;
 135        __u32 psn;
 136        __be64 sid;
 137        __u64 data;
 138        __u64 primary_path;
 139        __u64 alternate_path;
 140        __u8  len;
 141        __u8  peer_to_peer;
 142        __u8  responder_resources;
 143        __u8  initiator_depth;
 144        __u8  remote_cm_response_timeout;
 145        __u8  flow_control;
 146        __u8  local_cm_response_timeout;
 147        __u8  retry_count;
 148        __u8  rnr_retry_count;
 149        __u8  max_cm_retries;
 150        __u8  srq;
 151        __u8  reserved[5];
 152};
 153
 154struct ib_ucm_rep {
 155        __u64 uid;
 156        __u64 data;
 157        __u32 id;
 158        __u32 qpn;
 159        __u32 psn;
 160        __u8  len;
 161        __u8  responder_resources;
 162        __u8  initiator_depth;
 163        __u8  target_ack_delay;
 164        __u8  failover_accepted;
 165        __u8  flow_control;
 166        __u8  rnr_retry_count;
 167        __u8  srq;
 168        __u8  reserved[4];
 169};
 170
 171struct ib_ucm_info {
 172        __u32 id;
 173        __u32 status;
 174        __u64 info;
 175        __u64 data;
 176        __u8  info_len;
 177        __u8  data_len;
 178        __u8  reserved[6];
 179};
 180
 181struct ib_ucm_mra {
 182        __u64 data;
 183        __u32 id;
 184        __u8  len;
 185        __u8  timeout;
 186        __u8  reserved[2];
 187};
 188
 189struct ib_ucm_lap {
 190        __u64 path;
 191        __u64 data;
 192        __u32 id;
 193        __u8  len;
 194        __u8  reserved[3];
 195};
 196
 197struct ib_ucm_sidr_req {
 198        __u32 id;
 199        __u32 timeout;
 200        __be64 sid;
 201        __u64 data;
 202        __u64 path;
 203        __u16 reserved_pkey;
 204        __u8  len;
 205        __u8  max_cm_retries;
 206        __u8  reserved[4];
 207};
 208
 209struct ib_ucm_sidr_rep {
 210        __u32 id;
 211        __u32 qpn;
 212        __u32 qkey;
 213        __u32 status;
 214        __u64 info;
 215        __u64 data;
 216        __u8  info_len;
 217        __u8  data_len;
 218        __u8  reserved[6];
 219};
 220/*
 221 * event notification ABI structures.
 222 */
 223struct ib_ucm_event_get {
 224        __u64 response;
 225        __u64 data;
 226        __u64 info;
 227        __u8  data_len;
 228        __u8  info_len;
 229        __u8  reserved[6];
 230};
 231
 232struct ib_ucm_req_event_resp {
 233        struct ib_user_path_rec primary_path;
 234        struct ib_user_path_rec alternate_path;
 235        __be64                 remote_ca_guid;
 236        __u32                  remote_qkey;
 237        __u32                  remote_qpn;
 238        __u32                  qp_type;
 239        __u32                  starting_psn;
 240        __u8  responder_resources;
 241        __u8  initiator_depth;
 242        __u8  local_cm_response_timeout;
 243        __u8  flow_control;
 244        __u8  remote_cm_response_timeout;
 245        __u8  retry_count;
 246        __u8  rnr_retry_count;
 247        __u8  srq;
 248        __u8  port;
 249        __u8  reserved[7];
 250};
 251
 252struct ib_ucm_rep_event_resp {
 253        __be64 remote_ca_guid;
 254        __u32 remote_qkey;
 255        __u32 remote_qpn;
 256        __u32 starting_psn;
 257        __u8  responder_resources;
 258        __u8  initiator_depth;
 259        __u8  target_ack_delay;
 260        __u8  failover_accepted;
 261        __u8  flow_control;
 262        __u8  rnr_retry_count;
 263        __u8  srq;
 264        __u8  reserved[5];
 265};
 266
 267struct ib_ucm_rej_event_resp {
 268        __u32 reason;
 269        /* ari in ib_ucm_event_get info field. */
 270};
 271
 272struct ib_ucm_mra_event_resp {
 273        __u8  timeout;
 274        __u8  reserved[3];
 275};
 276
 277struct ib_ucm_lap_event_resp {
 278        struct ib_user_path_rec path;
 279};
 280
 281struct ib_ucm_apr_event_resp {
 282        __u32 status;
 283        /* apr info in ib_ucm_event_get info field. */
 284};
 285
 286struct ib_ucm_sidr_req_event_resp {
 287        __u16 pkey;
 288        __u8  port;
 289        __u8  reserved;
 290};
 291
 292struct ib_ucm_sidr_rep_event_resp {
 293        __u32 status;
 294        __u32 qkey;
 295        __u32 qpn;
 296        /* info in ib_ucm_event_get info field. */
 297};
 298
 299#define IB_UCM_PRES_DATA      0x01
 300#define IB_UCM_PRES_INFO      0x02
 301#define IB_UCM_PRES_PRIMARY   0x04
 302#define IB_UCM_PRES_ALTERNATE 0x08
 303
 304struct ib_ucm_event_resp {
 305        __u64 uid;
 306        __u32 id;
 307        __u32 event;
 308        __u32 present;
 309        __u32 reserved;
 310        union {
 311                struct ib_ucm_req_event_resp req_resp;
 312                struct ib_ucm_rep_event_resp rep_resp;
 313                struct ib_ucm_rej_event_resp rej_resp;
 314                struct ib_ucm_mra_event_resp mra_resp;
 315                struct ib_ucm_lap_event_resp lap_resp;
 316                struct ib_ucm_apr_event_resp apr_resp;
 317
 318                struct ib_ucm_sidr_req_event_resp sidr_req_resp;
 319                struct ib_ucm_sidr_rep_event_resp sidr_rep_resp;
 320
 321                __u32                             send_status;
 322        } u;
 323};
 324
 325#endif /* IB_USER_CM_H */
 326
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