File: mtl_mxm.h

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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
 * Copyright (C) Mellanox Technologies Ltd. 2001-2011.  ALL RIGHTS RESERVED.
 * Copyright (c) 2015      Los Alamos National Security, LLC.  All rights
 *                         reserved.
 * $COPYRIGHT$
 *
 * Additional copyrights may follow
 *
 * $HEADER$
 */

#ifndef MTL_MXM_H_HAS_BEEN_INCLUDED
#define MTL_MXM_H_HAS_BEEN_INCLUDED

#include <stdint.h>
#include <sys/types.h>
#include <unistd.h>

#include <mxm/api/mxm_api.h>
#ifndef MXM_VERSION
#define MXM_VERSION(major, minor) (((major)<<MXM_MAJOR_BIT)|((minor)<<MXM_MINOR_BIT))
#endif

#if MXM_API < MXM_VERSION(1,5)
#error "Unsupported MXM version, version 1.5 or above required"
#endif

#if MXM_API < MXM_VERSION(2,0)
#include <mxm/api/mxm_addr.h>
#endif

#include "ompi/mca/pml/pml.h"
#include "ompi/mca/mtl/mtl.h"
#include "ompi/mca/mtl/base/base.h"
#include "opal/class/opal_free_list.h"

#include "opal/util/output.h"
#include "opal/util/show_help.h"
#include "opal/datatype/opal_convertor.h"

#include "mtl_mxm_debug.h"

BEGIN_C_DECLS

/* MTL interface functions */
extern int ompi_mtl_mxm_add_procs(struct mca_mtl_base_module_t* mtl,
                                  size_t nprocs, struct ompi_proc_t** procs);
extern int ompi_mtl_add_single_proc(struct mca_mtl_base_module_t *mtl,
                                  struct ompi_proc_t* procs);
extern int ompi_mtl_mxm_del_procs(struct mca_mtl_base_module_t* mtl,
                                  size_t nprocs, struct ompi_proc_t** procs);

extern int ompi_mtl_mxm_send(struct mca_mtl_base_module_t* mtl,
                             struct ompi_communicator_t* comm, int dest, int tag,
                             struct opal_convertor_t *convertor,
                             mca_pml_base_send_mode_t mode);

extern int ompi_mtl_mxm_isend(struct mca_mtl_base_module_t* mtl,
                              struct ompi_communicator_t* comm, int dest,
                              int tag, struct opal_convertor_t *convertor,
                              mca_pml_base_send_mode_t mode, bool blocking,
                              mca_mtl_request_t * mtl_request);

extern int ompi_mtl_mxm_irecv(struct mca_mtl_base_module_t* mtl,
                              struct ompi_communicator_t *comm, int src,
                              int tag, struct opal_convertor_t *convertor,
                              struct mca_mtl_request_t *mtl_request);

extern int ompi_mtl_mxm_iprobe(struct mca_mtl_base_module_t* mtl,
                               struct ompi_communicator_t *comm, int src,
                               int tag, int *flag,
                               struct ompi_status_public_t *status);

extern int ompi_mtl_mxm_cancel(struct mca_mtl_base_module_t* mtl,
                               struct mca_mtl_request_t *mtl_request, int flag);

extern int ompi_mtl_mxm_imrecv(struct mca_mtl_base_module_t* mtl,
                               struct opal_convertor_t *convertor,
                               struct ompi_message_t **message,
                               struct mca_mtl_request_t *mtl_request);

extern int ompi_mtl_mxm_improbe(struct mca_mtl_base_module_t *mtl,
                                struct ompi_communicator_t *comm,
                                int src,
                                int tag,
                                int *matched,
                                struct ompi_message_t **message,
                                struct ompi_status_public_t *status);

extern int ompi_mtl_mxm_add_comm(struct mca_mtl_base_module_t *mtl,
                                 struct ompi_communicator_t *comm);

extern int ompi_mtl_mxm_del_comm(struct mca_mtl_base_module_t *mtl,
                                 struct ompi_communicator_t *comm);

extern int ompi_mtl_mxm_finalize(struct mca_mtl_base_module_t* mtl);

int ompi_mtl_mxm_module_init(void);

struct ompi_mtl_mxm_message_t {
    opal_free_list_item_t super;

    mxm_mq_h mq;
    mxm_conn_h conn;
    mxm_message_h mxm_msg;

    mxm_tag_t tag;
    mxm_tag_t tag_mask;
};
typedef struct ompi_mtl_mxm_message_t ompi_mtl_mxm_message_t;
OBJ_CLASS_DECLARATION(ompi_mtl_mxm_message_t);

END_C_DECLS

#endif