include/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        3
  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_ADDR,
  49         RDMA_USER_CM_CMD_RESOLVE_ADDR,
  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 };
  63
  64 /*
  65  * command ABI structures.
  66  */
  67 struct rdma_ucm_cmd_hdr {
  68         __u32 cmd;
  69         __u16 in;
  70         __u16 out;
  71 };
  72
  73 struct rdma_ucm_create_id {
  74         __u64 uid;
  75         __u64 response;
  76         __u16 ps;
  77         __u8  reserved[6];
  78 };
  79
  80 struct rdma_ucm_create_id_resp {
  81         __u32 id;
  82 };
  83
  84 struct rdma_ucm_destroy_id {
  85         __u64 response;
  86         __u32 id;
  87         __u32 reserved;
  88 };
  89
  90 struct rdma_ucm_destroy_id_resp {
  91         __u32 events_reported;
  92 };
  93
  94 struct rdma_ucm_bind_addr {
  95         __u64 response;
  96         struct sockaddr_in6 addr;
  97         __u32 id;
  98 };
  99
 100 struct rdma_ucm_resolve_addr {
 101         struct sockaddr_in6 src_addr;
 102         struct sockaddr_in6 dst_addr;
 103         __u32 id;
 104         __u32 timeout_ms;
 105 };
 106
 107 struct rdma_ucm_resolve_route {
 108         __u32 id;
 109         __u32 timeout_ms;
 110 };
 111
 112 struct rdma_ucm_query_route {
 113         __u64 response;
 114         __u32 id;
 115         __u32 reserved;
 116 };
 117
 118 struct rdma_ucm_query_route_resp {
 119         __u64 node_guid;
 120         struct ib_user_path_rec ib_route[2];
 121         struct sockaddr_in6 src_addr;
 122         struct sockaddr_in6 dst_addr;
 123         __u32 num_paths;
 124         __u8 port_num;
 125         __u8 reserved[3];
 126 };
 127
 128 struct rdma_ucm_conn_param {
 129         __u32 qp_num;
 130         __u32 reserved;
 131         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 132         __u8  private_data_len;
 133         __u8  srq;
 134         __u8  responder_resources;
 135         __u8  initiator_depth;
 136         __u8  flow_control;
 137         __u8  retry_count;
 138         __u8  rnr_retry_count;
 139         __u8  valid;
 140 };
 141
 142 struct rdma_ucm_ud_param {
 143         __u32 qp_num;
 144         __u32 qkey;
 145         struct ib_uverbs_ah_attr ah_attr;
 146         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 147         __u8  private_data_len;
 148         __u8  reserved[7];
 149 };
 150
 151 struct rdma_ucm_connect {
 152         struct rdma_ucm_conn_param conn_param;
 153         __u32 id;
 154         __u32 reserved;
 155 };
 156
 157 struct rdma_ucm_listen {
 158         __u32 id;
 159         __u32 backlog;
 160 };
 161
 162 struct rdma_ucm_accept {
 163         __u64 uid;
 164         struct rdma_ucm_conn_param conn_param;
 165         __u32 id;
 166         __u32 reserved;
 167 };
 168
 169 struct rdma_ucm_reject {
 170         __u32 id;
 171         __u8  private_data_len;
 172         __u8  reserved[3];
 173         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 174 };
 175
 176 struct rdma_ucm_disconnect {
 177         __u32 id;
 178 };
 179
 180 struct rdma_ucm_init_qp_attr {
 181         __u64 response;
 182         __u32 id;
 183         __u32 qp_state;
 184 };
 185
 186 struct rdma_ucm_notify {
 187         __u32 id;
 188         __u32 event;
 189 };
 190
 191 struct rdma_ucm_get_event {
 192         __u64 response;
 193 };
 194
 195 struct rdma_ucm_event_resp {
 196         __u64 uid;
 197         __u32 id;
 198         __u32 event;
 199         __u32 status;
 200         union {
 201                 struct rdma_ucm_conn_param conn;
 202                 struct rdma_ucm_ud_param   ud;
 203         } param;
 204 };
 205
 206 #endif /* RDMA_USER_CM_H */