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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2014-2018 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2018 Intel, Inc, All rights reserved
* Copyright (c) 2021 Triad National Security, LLC. All rights
* reserved.
*
*
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "btl_ofi_rdma.h"
OBJ_CLASS_INSTANCE(mca_btl_ofi_rdma_completion_t, opal_free_list_item_t, NULL, NULL);
mca_btl_ofi_rdma_completion_t *
mca_btl_ofi_rdma_completion_alloc(mca_btl_base_module_t *btl, mca_btl_base_endpoint_t *endpoint,
mca_btl_ofi_context_t *ofi_context, void *local_address,
mca_btl_base_registration_handle_t *local_handle,
mca_btl_base_rdma_completion_fn_t cbfunc, void *cbcontext,
void *cbdata, int type)
{
assert(btl);
assert(endpoint);
assert(ofi_context);
mca_btl_ofi_rdma_completion_t *comp;
comp = (mca_btl_ofi_rdma_completion_t *) opal_free_list_get(&ofi_context->rdma_comp_list);
assert(comp);
comp->base.btl = btl;
comp->base.endpoint = endpoint;
comp->base.my_context = ofi_context;
comp->base.my_list = &ofi_context->rdma_comp_list;
comp->base.type = type;
comp->local_address = local_address;
comp->local_handle = local_handle;
comp->cbfunc = cbfunc;
comp->cbcontext = cbcontext;
comp->cbdata = cbdata;
comp->comp_ctx.comp = comp;
return comp;
}
int mca_btl_ofi_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)
{
int rc;
mca_btl_ofi_rdma_completion_t *comp;
mca_btl_ofi_module_t *ofi_btl = (mca_btl_ofi_module_t *) btl;
mca_btl_ofi_endpoint_t *btl_endpoint = (mca_btl_ofi_endpoint_t *) endpoint;
mca_btl_ofi_context_t *ofi_context;
MCA_BTL_OFI_NUM_RDMA_INC(ofi_btl);
ofi_context = get_ofi_context(ofi_btl);
/* create completion context */
comp = mca_btl_ofi_rdma_completion_alloc(btl, endpoint, ofi_context, local_address,
local_handle, cbfunc, cbcontext, cbdata,
MCA_BTL_OFI_TYPE_GET);
remote_address = (remote_address - (uint64_t) remote_handle->base_addr);
/* Remote write data across the wire */
rc = fi_read(ofi_context->tx_ctx, local_address, size, /* payload */
(NULL == local_handle ? NULL : local_handle->desc),
btl_endpoint->peer_addr,
remote_address,
remote_handle->rkey,
&comp->comp_ctx); /* completion context */
if (-FI_EAGAIN == rc) {
MCA_BTL_OFI_NUM_RDMA_DEC(ofi_btl);
opal_free_list_return(comp->base.my_list, (opal_free_list_item_t *) comp);
return OPAL_ERR_OUT_OF_RESOURCE;
}
if (0 != rc) {
MCA_BTL_OFI_NUM_RDMA_DEC(ofi_btl);
opal_free_list_return(comp->base.my_list, (opal_free_list_item_t *) comp);
BTL_ERROR(("fi_read failed with %d:%s", rc, fi_strerror(-rc)));
MCA_BTL_OFI_ABORT();
}
return OPAL_SUCCESS;
}
int mca_btl_ofi_put(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)
{
int rc;
mca_btl_ofi_module_t *ofi_btl = (mca_btl_ofi_module_t *) btl;
mca_btl_ofi_endpoint_t *btl_endpoint = (mca_btl_ofi_endpoint_t *) endpoint;
mca_btl_ofi_context_t *ofi_context;
MCA_BTL_OFI_NUM_RDMA_INC(ofi_btl);
ofi_context = get_ofi_context(ofi_btl);
/* create completion context */
mca_btl_ofi_rdma_completion_t *comp;
comp = mca_btl_ofi_rdma_completion_alloc(btl, endpoint, ofi_context, local_address,
local_handle, cbfunc, cbcontext, cbdata,
MCA_BTL_OFI_TYPE_PUT);
remote_address = (remote_address - (uint64_t) remote_handle->base_addr);
/* Remote write data across the wire */
rc = fi_write(ofi_context->tx_ctx, local_address, size, /* payload */
local_handle->desc, btl_endpoint->peer_addr, remote_address, remote_handle->rkey,
&comp->comp_ctx); /* completion context */
if (-FI_EAGAIN == rc) {
MCA_BTL_OFI_NUM_RDMA_DEC(ofi_btl);
opal_free_list_return(comp->base.my_list, (opal_free_list_item_t *) comp);
return OPAL_ERR_OUT_OF_RESOURCE;
}
if (0 != rc) {
MCA_BTL_OFI_NUM_RDMA_DEC(ofi_btl);
opal_free_list_return(comp->base.my_list, (opal_free_list_item_t *) comp);
BTL_ERROR(("fi_write failed with %d:%s", rc, fi_strerror(-rc)));
MCA_BTL_OFI_ABORT();
}
return OPAL_SUCCESS;
}
int mca_btl_ofi_flush(mca_btl_base_module_t *btl, mca_btl_base_endpoint_t *endpoint)
{
mca_btl_ofi_module_t *ofi_btl = (mca_btl_ofi_module_t *) btl;
while (ofi_btl->outstanding_rdma > 0) {
(void) mca_btl_ofi_component.super.btl_progress();
}
return OPAL_SUCCESS;
}
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