include/rdma/ib_user_cm.h

   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  * $Id: ib_user_cm.h 2576 2005-06-09 17:00:30Z libor $
  34  */
  35
  36 #ifndef IB_USER_CM_H
  37 #define IB_USER_CM_H
  38
  39 #include <linux/types.h>
  40
  41 #define IB_USER_CM_ABI_VERSION 3
  42
  43 enum {
  44         IB_USER_CM_CMD_CREATE_ID,
  45         IB_USER_CM_CMD_DESTROY_ID,
  46         IB_USER_CM_CMD_ATTR_ID,
  47
  48         IB_USER_CM_CMD_LISTEN,
  49         IB_USER_CM_CMD_ESTABLISH,
  50
  51         IB_USER_CM_CMD_SEND_REQ,
  52         IB_USER_CM_CMD_SEND_REP,
  53         IB_USER_CM_CMD_SEND_RTU,
  54         IB_USER_CM_CMD_SEND_DREQ,
  55         IB_USER_CM_CMD_SEND_DREP,
  56         IB_USER_CM_CMD_SEND_REJ,
  57         IB_USER_CM_CMD_SEND_MRA,
  58         IB_USER_CM_CMD_SEND_LAP,
  59         IB_USER_CM_CMD_SEND_APR,
  60         IB_USER_CM_CMD_SEND_SIDR_REQ,
  61         IB_USER_CM_CMD_SEND_SIDR_REP,
  62
  63         IB_USER_CM_CMD_EVENT,
  64         IB_USER_CM_CMD_INIT_QP_ATTR,
  65 };
  66 /*
  67  * command ABI structures.
  68  */
  69 struct ib_ucm_cmd_hdr {
  70         __u32 cmd;
  71         __u16 in;
  72         __u16 out;
  73 };
  74
  75 struct ib_ucm_create_id {
  76         __u64 uid;
  77         __u64 response;
  78 };
  79
  80 struct ib_ucm_create_id_resp {
  81         __u32 id;
  82 };
  83
  84 struct ib_ucm_destroy_id {
  85         __u64 response;
  86         __u32 id;
  87 };
  88
  89 struct ib_ucm_destroy_id_resp {
  90         __u32 events_reported;
  91 };
  92
  93 struct ib_ucm_attr_id {
  94         __u64 response;
  95         __u32 id;
  96 };
  97
  98 struct ib_ucm_attr_id_resp {
  99         __be64 service_id;
 100         __be64 service_mask;
 101         __be32 local_id;
 102         __be32 remote_id;
 103 };
 104
 105 struct ib_ucm_init_qp_attr {
 106         __u64 response;
 107         __u32 id;
 108         __u32 qp_state;
 109 };
 110
 111 struct ib_ucm_ah_attr {
 112         __u8    grh_dgid[16];
 113         __u32   grh_flow_label;
 114         __u16   dlid;
 115         __u16   reserved;
 116         __u8    grh_sgid_index;
 117         __u8    grh_hop_limit;
 118         __u8    grh_traffic_class;
 119         __u8    sl;
 120         __u8    src_path_bits;
 121         __u8    static_rate;
 122         __u8    is_global;
 123         __u8    port_num;
 124 };
 125
 126 struct ib_ucm_init_qp_attr_resp {
 127         __u32   qp_attr_mask;
 128         __u32   qp_state;
 129         __u32   cur_qp_state;
 130         __u32   path_mtu;
 131         __u32   path_mig_state;
 132         __u32   qkey;
 133         __u32   rq_psn;
 134         __u32   sq_psn;
 135         __u32   dest_qp_num;
 136         __u32   qp_access_flags;
 137
 138         struct ib_ucm_ah_attr   ah_attr;
 139         struct ib_ucm_ah_attr   alt_ah_attr;
 140
 141         /* ib_qp_cap */
 142         __u32   max_send_wr;
 143         __u32   max_recv_wr;
 144         __u32   max_send_sge;
 145         __u32   max_recv_sge;
 146         __u32   max_inline_data;
 147
 148         __u16   pkey_index;
 149         __u16   alt_pkey_index;
 150         __u8    en_sqd_async_notify;
 151         __u8    sq_draining;
 152         __u8    max_rd_atomic;
 153         __u8    max_dest_rd_atomic;
 154         __u8    min_rnr_timer;
 155         __u8    port_num;
 156         __u8    timeout;
 157         __u8    retry_cnt;
 158         __u8    rnr_retry;
 159         __u8    alt_port_num;
 160         __u8    alt_timeout;
 161 };
 162
 163 struct ib_ucm_listen {
 164         __be64 service_id;
 165         __be64 service_mask;
 166         __u32 id;
 167 };
 168
 169 struct ib_ucm_establish {
 170         __u32 id;
 171 };
 172
 173 struct ib_ucm_private_data {
 174         __u64 data;
 175         __u32 id;
 176         __u8  len;
 177         __u8  reserved[3];
 178 };
 179
 180 struct ib_ucm_path_rec {
 181         __u8  dgid[16];
 182         __u8  sgid[16];
 183         __be16 dlid;
 184         __be16 slid;
 185         __u32 raw_traffic;
 186         __be32 flow_label;
 187         __u32 reversible;
 188         __u32 mtu;
 189         __be16 pkey;
 190         __u8  hop_limit;
 191         __u8  traffic_class;
 192         __u8  numb_path;
 193         __u8  sl;
 194         __u8  mtu_selector;
 195         __u8  rate_selector;
 196         __u8  rate;
 197         __u8  packet_life_time_selector;
 198         __u8  packet_life_time;
 199         __u8  preference;
 200 };
 201
 202 struct ib_ucm_req {
 203         __u32 id;
 204         __u32 qpn;
 205         __u32 qp_type;
 206         __u32 psn;
 207         __be64 sid;
 208         __u64 data;
 209         __u64 primary_path;
 210         __u64 alternate_path;
 211         __u8  len;
 212         __u8  peer_to_peer;
 213         __u8  responder_resources;
 214         __u8  initiator_depth;
 215         __u8  remote_cm_response_timeout;
 216         __u8  flow_control;
 217         __u8  local_cm_response_timeout;
 218         __u8  retry_count;
 219         __u8  rnr_retry_count;
 220         __u8  max_cm_retries;
 221         __u8  srq;
 222         __u8  reserved[1];
 223 };
 224
 225 struct ib_ucm_rep {
 226         __u64 uid;
 227         __u64 data;
 228         __u32 id;
 229         __u32 qpn;
 230         __u32 psn;
 231         __u8  len;
 232         __u8  responder_resources;
 233         __u8  initiator_depth;
 234         __u8  target_ack_delay;
 235         __u8  failover_accepted;
 236         __u8  flow_control;
 237         __u8  rnr_retry_count;
 238         __u8  srq;
 239 };
 240
 241 struct ib_ucm_info {
 242         __u32 id;
 243         __u32 status;
 244         __u64 info;
 245         __u64 data;
 246         __u8  info_len;
 247         __u8  data_len;
 248         __u8  reserved[2];
 249 };
 250
 251 struct ib_ucm_mra {
 252         __u64 data;
 253         __u32 id;
 254         __u8  len;
 255         __u8  timeout;
 256         __u8  reserved[2];
 257 };
 258
 259 struct ib_ucm_lap {
 260         __u64 path;
 261         __u64 data;
 262         __u32 id;
 263         __u8  len;
 264         __u8  reserved[3];
 265 };
 266
 267 struct ib_ucm_sidr_req {
 268         __u32 id;
 269         __u32 timeout;
 270         __be64 sid;
 271         __u64 data;
 272         __u64 path;
 273         __u16 pkey;
 274         __u8  len;
 275         __u8  max_cm_retries;
 276 };
 277
 278 struct ib_ucm_sidr_rep {
 279         __u32 id;
 280         __u32 qpn;
 281         __u32 qkey;
 282         __u32 status;
 283         __u64 info;
 284         __u64 data;
 285         __u8  info_len;
 286         __u8  data_len;
 287         __u8  reserved[2];
 288 };
 289 /*
 290  * event notification ABI structures.
 291  */
 292 struct ib_ucm_event_get {
 293         __u64 response;
 294         __u64 data;
 295         __u64 info;
 296         __u8  data_len;
 297         __u8  info_len;
 298         __u8  reserved[2];
 299 };
 300
 301 struct ib_ucm_req_event_resp {
 302         struct ib_ucm_path_rec primary_path;
 303         struct ib_ucm_path_rec alternate_path;
 304         __be64                 remote_ca_guid;
 305         __u32                  remote_qkey;
 306         __u32                  remote_qpn;
 307         __u32                  qp_type;
 308         __u32                  starting_psn;
 309         __u8  responder_resources;
 310         __u8  initiator_depth;
 311         __u8  local_cm_response_timeout;
 312         __u8  flow_control;
 313         __u8  remote_cm_response_timeout;
 314         __u8  retry_count;
 315         __u8  rnr_retry_count;
 316         __u8  srq;
 317         __u8  port;
 318 };
 319
 320 struct ib_ucm_rep_event_resp {
 321         __be64 remote_ca_guid;
 322         __u32 remote_qkey;
 323         __u32 remote_qpn;
 324         __u32 starting_psn;
 325         __u8  responder_resources;
 326         __u8  initiator_depth;
 327         __u8  target_ack_delay;
 328         __u8  failover_accepted;
 329         __u8  flow_control;
 330         __u8  rnr_retry_count;
 331         __u8  srq;
 332         __u8  reserved[1];
 333 };
 334
 335 struct ib_ucm_rej_event_resp {
 336         __u32 reason;
 337         /* ari in ib_ucm_event_get info field. */
 338 };
 339
 340 struct ib_ucm_mra_event_resp {
 341         __u8  timeout;
 342         __u8  reserved[3];
 343 };
 344
 345 struct ib_ucm_lap_event_resp {
 346         struct ib_ucm_path_rec path;
 347 };
 348
 349 struct ib_ucm_apr_event_resp {
 350         __u32 status;
 351         /* apr info in ib_ucm_event_get info field. */
 352 };
 353
 354 struct ib_ucm_sidr_req_event_resp {
 355         __u16 pkey;
 356         __u8  port;
 357         __u8  reserved;
 358 };
 359
 360 struct ib_ucm_sidr_rep_event_resp {
 361         __u32 status;
 362         __u32 qkey;
 363         __u32 qpn;
 364         /* info in ib_ucm_event_get info field. */
 365 };
 366
 367 #define IB_UCM_PRES_DATA      0x01
 368 #define IB_UCM_PRES_INFO      0x02
 369 #define IB_UCM_PRES_PRIMARY   0x04
 370 #define IB_UCM_PRES_ALTERNATE 0x08
 371
 372 struct ib_ucm_event_resp {
 373         __u64 uid;
 374         __u32 id;
 375         __u32 event;
 376         __u32 present;
 377         union {
 378                 struct ib_ucm_req_event_resp req_resp;
 379                 struct ib_ucm_rep_event_resp rep_resp;
 380                 struct ib_ucm_rej_event_resp rej_resp;
 381                 struct ib_ucm_mra_event_resp mra_resp;
 382                 struct ib_ucm_lap_event_resp lap_resp;
 383                 struct ib_ucm_apr_event_resp apr_resp;
 384
 385                 struct ib_ucm_sidr_req_event_resp sidr_req_resp;
 386                 struct ib_ucm_sidr_rep_event_resp sidr_rep_resp;
 387
 388                 __u32                             send_status;
 389         } u;
 390 };
 391
 392 #endif /* IB_USER_CM_H */