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/*

 * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.

 *

 * This software is available to you under a choice of one of two

 * licenses.  You may choose to be licensed under the terms of the GNU

 * General Public License (GPL) Version 2, available from the file

 * COPYING in the main directory of this source tree, or the

 * OpenIB.org BSD license below:

 *

 *     Redistribution and use in source and binary forms, with or

 *     without modification, are permitted provided that the following

 *     conditions are met:

 *

 *      - Redistributions of source code must retain the above

 *        copyright notice, this list of conditions and the following

 *        disclaimer.

 *

 *      - Redistributions in binary form must reproduce the above

 *        copyright notice, this list of conditions and the following

 *        disclaimer in the documentation and/or other materials

 *        provided with the distribution.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,

 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS

 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN

 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

 * SOFTWARE.

 */

#ifndef RDMA_USER_CM_H

#define RDMA_USER_CM_H

#include <linux/types.h>

#include <linux/in6.h>

#include <rdma/ib_user_verbs.h>

#include <rdma/ib_user_sa.h>

#define RDMA_USER_CM_ABI_VERSION        4

#define RDMA_MAX_PRIVATE_DATA           256

enum {

        RDMA_USER_CM_CMD_CREATE_ID,

        RDMA_USER_CM_CMD_DESTROY_ID,

        RDMA_USER_CM_CMD_BIND_ADDR,

        RDMA_USER_CM_CMD_RESOLVE_ADDR,

        RDMA_USER_CM_CMD_RESOLVE_ROUTE,

        RDMA_USER_CM_CMD_QUERY_ROUTE,

        RDMA_USER_CM_CMD_CONNECT,

        RDMA_USER_CM_CMD_LISTEN,

        RDMA_USER_CM_CMD_ACCEPT,

        RDMA_USER_CM_CMD_REJECT,

        RDMA_USER_CM_CMD_DISCONNECT,

        RDMA_USER_CM_CMD_INIT_QP_ATTR,

        RDMA_USER_CM_CMD_GET_EVENT,

        RDMA_USER_CM_CMD_GET_OPTION,

        RDMA_USER_CM_CMD_SET_OPTION,

        RDMA_USER_CM_CMD_NOTIFY,

        RDMA_USER_CM_CMD_JOIN_MCAST,

        RDMA_USER_CM_CMD_LEAVE_MCAST

};

/*

 * command ABI structures.

 */

struct rdma_ucm_cmd_hdr {

        __u32 cmd;

        __u16 in;

        __u16 out;

};

struct rdma_ucm_create_id {

        __u64 uid;

        __u64 response;

        __u16 ps;

        __u8  reserved[6];

};

struct rdma_ucm_create_id_resp {

        __u32 id;

};

struct rdma_ucm_destroy_id {

        __u64 response;

        __u32 id;

        __u32 reserved;

};

struct rdma_ucm_destroy_id_resp {

        __u32 events_reported;

};

struct rdma_ucm_bind_addr {

        __u64 response;

        struct sockaddr_in6 addr;

        __u32 id;

};

struct rdma_ucm_resolve_addr {

        struct sockaddr_in6 src_addr;

        struct sockaddr_in6 dst_addr;

        __u32 id;

        __u32 timeout_ms;

};

struct rdma_ucm_resolve_route {

        __u32 id;

        __u32 timeout_ms;

};

struct rdma_ucm_query_route {

        __u64 response;

        __u32 id;

        __u32 reserved;

};

struct rdma_ucm_query_route_resp {

        __u64 node_guid;

        struct ib_user_path_rec ib_route[2];

        struct sockaddr_in6 src_addr;

        struct sockaddr_in6 dst_addr;

        __u32 num_paths;

        __u8 port_num;

        __u8 reserved[3];

};

struct rdma_ucm_conn_param {

        __u32 qp_num;

        __u32 reserved;

        __u8  private_data[RDMA_MAX_PRIVATE_DATA];

        __u8  private_data_len;

        __u8  srq;

        __u8  responder_resources;

        __u8  initiator_depth;

        __u8  flow_control;

        __u8  retry_count;

        __u8  rnr_retry_count;

        __u8  valid;

};

struct rdma_ucm_ud_param {

        __u32 qp_num;

        __u32 qkey;

        struct ib_uverbs_ah_attr ah_attr;

        __u8  private_data[RDMA_MAX_PRIVATE_DATA];

        __u8  private_data_len;

        __u8  reserved[7];

};

struct rdma_ucm_connect {

        struct rdma_ucm_conn_param conn_param;

        __u32 id;

        __u32 reserved;

};

struct rdma_ucm_listen {

        __u32 id;

        __u32 backlog;

};

struct rdma_ucm_accept {

        __u64 uid;

        struct rdma_ucm_conn_param conn_param;

        __u32 id;

        __u32 reserved;

};

struct rdma_ucm_reject {

        __u32 id;

        __u8  private_data_len;

        __u8  reserved[3];

        __u8  private_data[RDMA_MAX_PRIVATE_DATA];

};

struct rdma_ucm_disconnect {

        __u32 id;

};

struct rdma_ucm_init_qp_attr {

        __u64 response;

        __u32 id;

        __u32 qp_state;

};

struct rdma_ucm_notify {

        __u32 id;

        __u32 event;

};

struct rdma_ucm_join_mcast {

        __u64 response;         /* rdma_ucm_create_id_resp */

        __u64 uid;

        struct sockaddr_in6 addr;

        __u32 id;

};

struct rdma_ucm_get_event {

        __u64 response;

};

struct rdma_ucm_event_resp {

        __u64 uid;

        __u32 id;

        __u32 event;

        __u32 status;

        union {

                struct rdma_ucm_conn_param conn;

                struct rdma_ucm_ud_param   ud;

        } param;

};

/* Option levels */

enum {

        RDMA_OPTION_ID          = 0

};

/* Option details */

enum {

        RDMA_OPTION_ID_TOS      = 0

};

struct rdma_ucm_set_option {

        __u64 optval;

        __u32 id;

        __u32 level;

        __u32 optname;

        __u32 optlen;

};

#endif /* RDMA_USER_CM_H */