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rdma.c 29.46 KiB
/* -*- mode:c -*- */
/** @file
** @brief OFI RDMA Transport implementation
**/
/*
* Copyright (C) 2020 Cray Computer GmbH
* Copyright (C) 2021 HPE Switzerland GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. 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.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "maestro/logging.h"
#include "maestro/i_ofi.h"
#include "maestro/i_memlock.h"
#include "maestro/i_memory.h"
#include "maestro/i_pool_manager_protocol.h"
#include "maestro/i_pool_manager_registry.h"
#include "transport.h"
#include "transport_rdma.h"
#include "attributes/maestro-schema.h"
#include <rdma/fabric.h>
#include <rdma/fi_domain.h>
#include <rdma/fi_rma.h>
#include <unistd.h>
#include <sys/mman.h>
#include <pthread.h>
#include <string.h>
#ifndef MIN
#define MIN(x,y) ((x)<(y) ? (x) : (y))
#endif
/* simplify logging */
#define NOISE(...) LOG_NOISE(MSTRO_LOG_MODULE_TRANSP,__VA_ARGS__)
#define DEBUG(...) LOG_DEBUG(MSTRO_LOG_MODULE_TRANSP,__VA_ARGS__)
#define INFO(...) LOG_INFO(MSTRO_LOG_MODULE_TRANSP,__VA_ARGS__)
#define WARN(...) LOG_WARN(MSTRO_LOG_MODULE_TRANSP,__VA_ARGS__)
#define ERR(...) LOG_ERR(MSTRO_LOG_MODULE_TRANSP,__VA_ARGS__)
/** hashing of memory registrations is done on an aggregate key: CDO
* ID, OFI domain and maybe OFI endpoint.