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   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_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         RDMA_USER_CM_CMD_JOIN_MCAST,
  63         RDMA_USER_CM_CMD_LEAVE_MCAST
  64 };
  65
  66 /*
  67  * command ABI structures.
  68  */
  69 struct rdma_ucm_cmd_hdr {
  70         __u32 cmd;
  71         __u16 in;
  72         __u16 out;
  73 };
  74
  75 struct rdma_ucm_create_id {
  76         __u64 uid;
  77         __u64 response;
  78         __u16 ps;
  79         __u8  reserved[6];
  80 };
  81
  82 struct rdma_ucm_create_id_resp {
  83         __u32 id;
  84 };
  85
  86 struct rdma_ucm_destroy_id {
  87         __u64 response;
  88         __u32 id;
  89         __u32 reserved;
  90 };
  91
  92 struct rdma_ucm_destroy_id_resp {
  93         __u32 events_reported;
  94 };
  95
  96 struct rdma_ucm_bind_addr {
  97         __u64 response;
  98         struct sockaddr_in6 addr;
  99         __u32 id;
 100 };
 101
 102 struct rdma_ucm_resolve_addr {
 103         struct sockaddr_in6 src_addr;
 104         struct sockaddr_in6 dst_addr;
 105         __u32 id;
 106         __u32 timeout_ms;
 107 };
 108
 109 struct rdma_ucm_resolve_route {
 110         __u32 id;
 111         __u32 timeout_ms;
 112 };
 113
 114 struct rdma_ucm_query_route {
 115         __u64 response;
 116         __u32 id;
 117         __u32 reserved;
 118 };
 119
 120 struct rdma_ucm_query_route_resp {
 121         __u64 node_guid;
 122         struct ib_user_path_rec ib_route[2];
 123         struct sockaddr_in6 src_addr;
 124         struct sockaddr_in6 dst_addr;
 125         __u32 num_paths;
 126         __u8 port_num;
 127         __u8 reserved[3];
 128 };
 129
 130 struct rdma_ucm_conn_param {
 131         __u32 qp_num;
 132         __u32 reserved;
 133         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 134         __u8  private_data_len;
 135         __u8  srq;
 136         __u8  responder_resources;
 137         __u8  initiator_depth;
 138         __u8  flow_control;
 139         __u8  retry_count;
 140         __u8  rnr_retry_count;
 141         __u8  valid;
 142 };
 143
 144 struct rdma_ucm_ud_param {
 145         __u32 qp_num;
 146         __u32 qkey;
 147         struct ib_uverbs_ah_attr ah_attr;
 148         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 149         __u8  private_data_len;
 150         __u8  reserved[7];
 151 };
 152
 153 struct rdma_ucm_connect {
 154         struct rdma_ucm_conn_param conn_param;
 155         __u32 id;
 156         __u32 reserved;
 157 };
 158
 159 struct rdma_ucm_listen {
 160         __u32 id;
 161         __u32 backlog;
 162 };
 163
 164 struct rdma_ucm_accept {
 165         __u64 uid;
 166         struct rdma_ucm_conn_param conn_param;
 167         __u32 id;
 168         __u32 reserved;
 169 };
 170
 171 struct rdma_ucm_reject {
 172         __u32 id;
 173         __u8  private_data_len;
 174         __u8  reserved[3];
 175         __u8  private_data[RDMA_MAX_PRIVATE_DATA];
 176 };
 177
 178 struct rdma_ucm_disconnect {
 179         __u32 id;
 180 };
 181
 182 struct rdma_ucm_init_qp_attr {
 183         __u64 response;
 184         __u32 id;
 185         __u32 qp_state;
 186 };
 187
 188 struct rdma_ucm_notify {
 189         __u32 id;
 190         __u32 event;
 191 };
 192
 193 struct rdma_ucm_join_mcast {
 194         __u64 response;         /* rdma_ucm_create_id_resp */
 195         __u64 uid;
 196         struct sockaddr_in6 addr;
 197         __u32 id;
 198 };
 199
 200 struct rdma_ucm_get_event {
 201         __u64 response;
 202 };
 203
 204 struct rdma_ucm_event_resp {
 205         __u64 uid;
 206         __u32 id;
 207         __u32 event;
 208         __u32 status;
 209         union {
 210                 struct rdma_ucm_conn_param conn;
 211                 struct rdma_ucm_ud_param   ud;
 212         } param;
 213 };
 214
 215 #endif /* RDMA_USER_CM_H */