116 строки
4.6 KiB
C
116 строки
4.6 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2011-2012 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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#if !defined(MCA_BTL_UGNI_RDMA_H)
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#define MCA_BTL_UGNI_RDMA_H
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#include "btl_ugni.h"
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#include "btl_ugni_frag.h"
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int mca_btl_ugni_start_eager_get (mca_btl_base_endpoint_t *ep,
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mca_btl_ugni_eager_ex_frag_hdr_t hdr,
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mca_btl_ugni_base_frag_t *frag);
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static inline void init_gni_post_desc (mca_btl_ugni_base_frag_t *frag,
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gni_post_type_t op_type,
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uint64_t lcl_addr,
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gni_mem_handle_t lcl_mdh,
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uint64_t rem_addr,
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gni_mem_handle_t rem_mdh,
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uint64_t bufsize,
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gni_cq_handle_t cq_hndl) {
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frag->post_desc.base.type = op_type;
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frag->post_desc.base.cq_mode = GNI_CQMODE_GLOBAL_EVENT;
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frag->post_desc.base.dlvr_mode = GNI_DLVMODE_PERFORMANCE;
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frag->post_desc.base.local_addr = (uint64_t) lcl_addr;
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frag->post_desc.base.local_mem_hndl = lcl_mdh;
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frag->post_desc.base.remote_addr = (uint64_t) rem_addr;
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frag->post_desc.base.remote_mem_hndl = rem_mdh;
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frag->post_desc.base.length = bufsize;
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frag->post_desc.base.rdma_mode = 0;
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frag->post_desc.base.src_cq_hndl = cq_hndl;
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frag->post_desc.tries = 0;
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}
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static inline int mca_btl_ugni_post_fma (mca_btl_ugni_base_frag_t *frag, gni_post_type_t op_type,
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mca_btl_ugni_segment_t *lcl_seg, mca_btl_ugni_segment_t *rem_seg)
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{
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gni_return_t rc;
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/* Post descriptor (CQ is ignored for FMA transactions) */
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init_gni_post_desc (frag, op_type, lcl_seg->base.seg_addr.lval, lcl_seg->memory_handle,
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rem_seg->base.seg_addr.lval, rem_seg->memory_handle, lcl_seg->base.seg_len, 0);
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rc = GNI_PostFma (frag->endpoint->rdma_ep_handle, &frag->post_desc.base);
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if (GNI_RC_SUCCESS != rc) {
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BTL_VERBOSE(("GNI_PostFma failed with gni rc: %d", rc));
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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return OMPI_SUCCESS;
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}
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static inline int mca_btl_ugni_post_bte (mca_btl_ugni_base_frag_t *frag, gni_post_type_t op_type,
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mca_btl_ugni_segment_t *lcl_seg, mca_btl_ugni_segment_t *rem_seg)
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{
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gni_return_t rc;
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/* Post descriptor */
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init_gni_post_desc (frag, op_type, lcl_seg->base.seg_addr.lval, lcl_seg->memory_handle,
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rem_seg->base.seg_addr.lval, rem_seg->memory_handle, lcl_seg->base.seg_len,
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frag->endpoint->btl->rdma_local_cq);
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rc = GNI_PostRdma (frag->endpoint->rdma_ep_handle, &frag->post_desc.base);
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if (GNI_RC_SUCCESS != rc) {
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BTL_VERBOSE(("GNI_PostRdma failed with gni rc: %d", rc));
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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return OMPI_SUCCESS;
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}
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static inline int mca_btl_ugni_post_wcb (mca_btl_ugni_base_frag_t *frag, bool get, mca_btl_ugni_segment_t *lcl_seg,
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mca_btl_ugni_segment_t *rem_seg, frag_cb_t cb) {
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frag->cbfunc = cb;
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if (frag->base.des_src->seg_len <= mca_btl_ugni_component.ugni_fma_limit) {
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return mca_btl_ugni_post_fma (frag, get ? GNI_POST_FMA_GET : GNI_POST_FMA_PUT, lcl_seg, rem_seg);
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}
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return mca_btl_ugni_post_bte (frag, get ? GNI_POST_RDMA_GET : GNI_POST_RDMA_PUT, lcl_seg, rem_seg);
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}
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static inline int mca_btl_ugni_post (mca_btl_ugni_base_frag_t *frag, bool get, mca_btl_ugni_segment_t *lcl_seg,
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mca_btl_ugni_segment_t *rem_seg) {
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return mca_btl_ugni_post_wcb (frag, get, lcl_seg, rem_seg, mca_btl_ugni_frag_complete);
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}
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static inline void mca_btl_ugni_repost (mca_btl_ugni_base_frag_t *frag, int rc) {
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gni_return_t grc;
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frag->cbfunc = mca_btl_ugni_frag_complete;
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if (GNI_POST_RDMA_PUT == frag->post_desc.base.type ||
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GNI_POST_RDMA_GET == frag->post_desc.base.type) {
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grc = GNI_PostRdma (frag->endpoint->rdma_ep_handle, &frag->post_desc.base);
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} else {
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grc = GNI_PostFma (frag->endpoint->rdma_ep_handle, &frag->post_desc.base);
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}
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if (OPAL_UNLIKELY(GNI_RC_SUCCESS != grc)) {
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frag->cbfunc = mca_btl_ugni_repost;
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opal_list_append (&frag->endpoint->btl->failed_frags, (opal_list_item_t *) frag);
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}
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}
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#endif /* MCA_BTL_UGNI_RDMA_H */
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