2d381f800f
The old BTL interface provided support for RDMA through the use of the btl_prepare_src and btl_prepare_dst functions. These functions were expected to prepare as much of the user buffer as possible for the RDMA operation and return a descriptor. The descriptor contained segment information on the prepared region. The btl user could then pass the RDMA segment information to a remote peer. Once the peer received that information it then packed it into a similar descriptor on the other side that could then be passed into a single btl_put or btl_get operation. Changes: - Removed the btl_prepare_dst function. This reflects the fact that RDMA operations no longer depend on "prepared" descriptors. - Removed the btl_seg_size member. There is no need to btl's to subclass the mca_btl_base_segment_t class anymore. ... Add more
34 строки
1.3 KiB
C
34 строки
1.3 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2011-2014 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2011 UT-Battelle, LLC. All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "opal_config.h"
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#include "opal/include/opal_stdint.h"
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#include "btl_ugni_rdma.h"
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int mca_btl_ugni_put (struct mca_btl_base_module_t *btl,
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struct mca_btl_base_endpoint_t *endpoint,
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void *local_address, uint64_t remote_address,
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struct mca_btl_base_registration_handle_t *local_handle,
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struct mca_btl_base_registration_handle_t *remote_handle,
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size_t size, int flags, mca_btl_base_rdma_completion_fn_t cbfunc,
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void *cbcontext, void *cbdata)
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{
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BTL_VERBOSE(("Using RDMA/FMA Put from local address %p to remote address %" PRIx64,
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local_address, remote_address));
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/* cause endpoint to bind if it isn't already (bind is sufficient for rdma) */
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(void) mca_btl_ugni_check_endpoint_state(endpoint);
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return mca_btl_ugni_post (endpoint, false, size, local_address, remote_address, local_handle,
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remote_handle, cbfunc, cbcontext, cbdata);
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}
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