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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2010-2014 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2018 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2019-2022 Google, Inc. All rights reserved.
* Copyright (c) 2020 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "opal_config.h"
#include "opal/mca/btl/sm/btl_sm.h"
#include "opal/mca/btl/sm/btl_sm_frag.h"
#include "opal/mca/smsc/smsc.h"
/**
* Initiate an synchronous get.
*
* @param btl (IN) BTL module
* @param endpoint (IN) BTL addressing information
* @param descriptor (IN) Description of the data to be transferred
*/
int mca_btl_sm_get(mca_btl_base_module_t *btl, mca_btl_base_endpoint_t *endpoint,
void *local_address, uint64_t remote_address,
mca_btl_base_registration_handle_t *local_handle,
mca_btl_base_registration_handle_t *remote_handle, size_t size, int flags,
int order, mca_btl_base_rdma_completion_fn_t cbfunc, void *cbcontext,
void *cbdata)
{
if (!mca_btl_is_self_endpoint(endpoint)) {
int ret = MCA_SMSC_CALL(copy_from, endpoint->smsc_endpoint, local_address,
(void *) (intptr_t) remote_address, size, remote_handle);
if (OPAL_UNLIKELY(OPAL_SUCCESS != ret)) {
return ret;
}
} else {
memcpy(local_address, (void *)(uintptr_t) remote_address, size);
}
/* always call the callback function */
cbfunc(btl, endpoint, local_address, local_handle, cbcontext, cbdata, OPAL_SUCCESS);
return OPAL_SUCCESS;
}