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/*

 * Copyright (c) 2005 Topspin Communications.  All rights reserved.

 * Copyright (c) 2005 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 IB_USER_CM_H

#define IB_USER_CM_H

#include <linux/types.h>

#include <rdma/ib_user_sa.h>

#define IB_USER_CM_ABI_VERSION 5

enum {

        IB_USER_CM_CMD_CREATE_ID,

        IB_USER_CM_CMD_DESTROY_ID,

        IB_USER_CM_CMD_ATTR_ID,

        IB_USER_CM_CMD_LISTEN,

        IB_USER_CM_CMD_NOTIFY,

        IB_USER_CM_CMD_SEND_REQ,

        IB_USER_CM_CMD_SEND_REP,

        IB_USER_CM_CMD_SEND_RTU,

        IB_USER_CM_CMD_SEND_DREQ,

        IB_USER_CM_CMD_SEND_DREP,

        IB_USER_CM_CMD_SEND_REJ,

        IB_USER_CM_CMD_SEND_MRA,

        IB_USER_CM_CMD_SEND_LAP,

        IB_USER_CM_CMD_SEND_APR,

        IB_USER_CM_CMD_SEND_SIDR_REQ,

        IB_USER_CM_CMD_SEND_SIDR_REP,

        IB_USER_CM_CMD_EVENT,

        IB_USER_CM_CMD_INIT_QP_ATTR,

};

/*

 * command ABI structures.

 */

struct ib_ucm_cmd_hdr {

        __u32 cmd;

        __u16 in;

        __u16 out;

};

struct ib_ucm_create_id {

        __u64 uid;

        __u64 response;

};

struct ib_ucm_create_id_resp {

        __u32 id;

};

struct ib_ucm_destroy_id {

        __u64 response;

        __u32 id;

        __u32 reserved;

};

struct ib_ucm_destroy_id_resp {

        __u32 events_reported;

};

struct ib_ucm_attr_id {

        __u64 response;

        __u32 id;

        __u32 reserved;

};

struct ib_ucm_attr_id_resp {

        __be64 service_id;

        __be64 service_mask;

        __be32 local_id;

        __be32 remote_id;

};

struct ib_ucm_init_qp_attr {

        __u64 response;

        __u32 id;

        __u32 qp_state;

};

struct ib_ucm_listen {

        __be64 service_id;

        __be64 service_mask;

        __u32 id;

        __u32 reserved;

};

struct ib_ucm_notify {

        __u32 id;

        __u32 event;

};

struct ib_ucm_private_data {

        __u64 data;

        __u32 id;

        __u8  len;

        __u8  reserved[3];

};

struct ib_ucm_req {

        __u32 id;

        __u32 qpn;

        __u32 qp_type;

        __u32 psn;

        __be64 sid;

        __u64 data;

        __u64 primary_path;

        __u64 alternate_path;

        __u8  len;

        __u8  peer_to_peer;

        __u8  responder_resources;

        __u8  initiator_depth;

        __u8  remote_cm_response_timeout;

        __u8  flow_control;

        __u8  local_cm_response_timeout;

        __u8  retry_count;

        __u8  rnr_retry_count;

        __u8  max_cm_retries;

        __u8  srq;

        __u8  reserved[5];

};

struct ib_ucm_rep {

        __u64 uid;

        __u64 data;

        __u32 id;

        __u32 qpn;

        __u32 psn;

        __u8  len;

        __u8  responder_resources;

        __u8  initiator_depth;

        __u8  target_ack_delay;

        __u8  failover_accepted;

        __u8  flow_control;

        __u8  rnr_retry_count;

        __u8  srq;

        __u8  reserved[4];

};

struct ib_ucm_info {

        __u32 id;

        __u32 status;

        __u64 info;

        __u64 data;

        __u8  info_len;

        __u8  data_len;

        __u8  reserved[6];

};

struct ib_ucm_mra {

        __u64 data;

        __u32 id;

        __u8  len;

        __u8  timeout;

        __u8  reserved[2];

};

struct ib_ucm_lap {

        __u64 path;

        __u64 data;

        __u32 id;

        __u8  len;

        __u8  reserved[3];

};

struct ib_ucm_sidr_req {

        __u32 id;

        __u32 timeout;

        __be64 sid;

        __u64 data;

        __u64 path;

        __u16 reserved_pkey;

        __u8  len;

        __u8  max_cm_retries;

        __u8  reserved[4];

};

struct ib_ucm_sidr_rep {

        __u32 id;

        __u32 qpn;

        __u32 qkey;

        __u32 status;

        __u64 info;

        __u64 data;

        __u8  info_len;

        __u8  data_len;

        __u8  reserved[6];

};

/*

 * event notification ABI structures.

 */

struct ib_ucm_event_get {

        __u64 response;

        __u64 data;

        __u64 info;

        __u8  data_len;

        __u8  info_len;

        __u8  reserved[6];

};

struct ib_ucm_req_event_resp {

        struct ib_user_path_rec primary_path;

        struct ib_user_path_rec alternate_path;

        __be64                 remote_ca_guid;

        __u32                  remote_qkey;

        __u32                  remote_qpn;

        __u32                  qp_type;

        __u32                  starting_psn;

        __u8  responder_resources;

        __u8  initiator_depth;

        __u8  local_cm_response_timeout;

        __u8  flow_control;

        __u8  remote_cm_response_timeout;

        __u8  retry_count;

        __u8  rnr_retry_count;

        __u8  srq;

        __u8  port;

        __u8  reserved[7];

};

struct ib_ucm_rep_event_resp {

        __be64 remote_ca_guid;

        __u32 remote_qkey;

        __u32 remote_qpn;

        __u32 starting_psn;

        __u8  responder_resources;

        __u8  initiator_depth;

        __u8  target_ack_delay;

        __u8  failover_accepted;

        __u8  flow_control;

        __u8  rnr_retry_count;

        __u8  srq;

        __u8  reserved[5];

};

struct ib_ucm_rej_event_resp {

        __u32 reason;

        /* ari in ib_ucm_event_get info field. */

};

struct ib_ucm_mra_event_resp {

        __u8  timeout;

        __u8  reserved[3];

};

struct ib_ucm_lap_event_resp {

        struct ib_user_path_rec path;

};

struct ib_ucm_apr_event_resp {

        __u32 status;

        /* apr info in ib_ucm_event_get info field. */

};

struct ib_ucm_sidr_req_event_resp {

        __u16 pkey;

        __u8  port;

        __u8  reserved;

};

struct ib_ucm_sidr_rep_event_resp {

        __u32 status;

        __u32 qkey;

        __u32 qpn;

        /* info in ib_ucm_event_get info field. */

};

#define IB_UCM_PRES_DATA      0x01

#define IB_UCM_PRES_INFO      0x02

#define IB_UCM_PRES_PRIMARY   0x04

#define IB_UCM_PRES_ALTERNATE 0x08

struct ib_ucm_event_resp {

        __u64 uid;

        __u32 id;

        __u32 event;

        __u32 present;

        __u32 reserved;

        union {

                struct ib_ucm_req_event_resp req_resp;

                struct ib_ucm_rep_event_resp rep_resp;

                struct ib_ucm_rej_event_resp rej_resp;

                struct ib_ucm_mra_event_resp mra_resp;

                struct ib_ucm_lap_event_resp lap_resp;

                struct ib_ucm_apr_event_resp apr_resp;

                struct ib_ucm_sidr_req_event_resp sidr_req_resp;

                struct ib_ucm_sidr_rep_event_resp sidr_rep_resp;

                __u32                             send_status;

        } u;

};

#endif /* IB_USER_CM_H */