99 строки
3.0 KiB
C
99 строки
3.0 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2013 Los Alamos National Security, LLC. All rights
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* 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_SCIF_FRAG_H)
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#define MCA_BTL_SCIF_FRAG_H
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#include "btl_scif.h"
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#include "btl_scif_endpoint.h"
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typedef struct mca_btl_scif_frag_hdr_t {
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#if defined(SCIF_USE_SEQ)
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uint32_t seq;
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#endif
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uint8_t tag;
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uint8_t flags;
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uint16_t size;
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} mca_btl_scif_frag_hdr_t;
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struct mca_btl_scif_base_frag_t;
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typedef void (*frag_cb_t) (struct mca_btl_scif_base_frag_t *, int);
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typedef struct mca_btl_scif_base_frag_t {
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mca_btl_base_descriptor_t base;
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mca_btl_scif_frag_hdr_t hdr;
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mca_btl_base_segment_t segments[2];
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mca_btl_base_endpoint_t *endpoint;
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mca_btl_scif_reg_t *registration;
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ompi_free_list_t *my_list;
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} mca_btl_scif_base_frag_t;
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typedef mca_btl_scif_base_frag_t mca_btl_scif_dma_frag_t;
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typedef mca_btl_scif_base_frag_t mca_btl_scif_eager_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_scif_dma_frag_t);
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OBJ_CLASS_DECLARATION(mca_btl_scif_eager_frag_t);
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static inline int mca_btl_scif_frag_alloc (mca_btl_base_endpoint_t *ep,
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ompi_free_list_t *list,
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mca_btl_scif_base_frag_t **frag)
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{
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ompi_free_list_item_t *item = NULL;
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OMPI_FREE_LIST_GET_MT(list, item);
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*frag = (mca_btl_scif_base_frag_t *) item;
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if (OPAL_LIKELY(NULL != item)) {
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(*frag)->my_list = list;
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(*frag)->endpoint = ep;
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return OPAL_SUCCESS;
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}
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return OPAL_ERR_OUT_OF_RESOURCE;
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}
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static inline int mca_btl_scif_frag_return (mca_btl_scif_base_frag_t *frag)
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{
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if (frag->registration) {
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frag->endpoint->btl->super.btl_mpool->mpool_deregister(frag->endpoint->btl->super.btl_mpool,
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&frag->registration->base);
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frag->registration = NULL;
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}
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frag->segments[0].seg_addr.pval = frag->base.super.ptr;
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frag->segments[0].seg_len = 0;
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frag->segments[1].seg_len = 0;
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OMPI_FREE_LIST_RETURN_MT(frag->my_list, (ompi_free_list_item_t *) frag);
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return OPAL_SUCCESS;
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}
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static inline void mca_btl_scif_frag_complete (mca_btl_scif_base_frag_t *frag, int rc) {
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BTL_VERBOSE(("frag complete. flags = %d", frag->base.des_flags));
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/* call callback if specified */
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if (frag->base.des_flags & MCA_BTL_DES_SEND_ALWAYS_CALLBACK) {
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frag->base.des_cbfunc(&frag->endpoint->btl->super, frag->endpoint, &frag->base, rc);
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}
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if (frag->base.des_flags & MCA_BTL_DES_FLAGS_BTL_OWNERSHIP) {
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mca_btl_scif_frag_return (frag);
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}
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}
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#define MCA_BTL_SCIF_FRAG_ALLOC_EAGER(ep, frag) \
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mca_btl_scif_frag_alloc((ep), &(ep)->btl->eager_frags, &(frag))
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#define MCA_BTL_SCIF_FRAG_ALLOC_DMA(ep, frag) \
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mca_btl_scif_frag_alloc((ep), &(ep)->btl->dma_frags, &(frag))
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#endif /* MCA_BTL_SCIF_FRAG_H */
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