68 строки
2.2 KiB
C
68 строки
2.2 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2011 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 "btl_ugni.h"
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#include "btl_ugni_frag.h"
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#include "btl_ugni_endpoint.h"
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int mca_btl_ugni_send (struct mca_btl_base_module_t *btl,
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struct mca_btl_base_endpoint_t *btl_peer,
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struct mca_btl_base_descriptor_t *descriptor,
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mca_btl_base_tag_t tag)
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{
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mca_btl_ugni_base_frag_t *frag = (mca_btl_ugni_base_frag_t *) descriptor;
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int rc;
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BTL_VERBOSE(("btl/ugni sending descriptor %p from %d -> %d. length = %d", (void *)descriptor,
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ORTE_PROC_MY_NAME->vpid, btl_peer->common->ep_rem_id, frag->segments[0].seg_len));
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rc = mca_btl_ugni_check_endpoint_state (btl_peer);
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if (OPAL_UNLIKELY(OMPI_SUCCESS != rc)) {
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frag->tag = tag;
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descriptor->des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK;
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opal_list_append (&btl_peer->pending_list, (opal_list_item_t *) frag);
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/* connection started and request queued or something bad happened */
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return OMPI_SUCCESS;
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}
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frag->hdr->tag = tag;
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frag->hdr->len = frag->segments[0].seg_len;
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/* check endpoint state */
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rc = GNI_SmsgSendWTag (btl_peer->common->ep_handle, frag->hdr,
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descriptor->des_src->seg_len + sizeof (frag->hdr[0]),
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NULL, 0, -1, MCA_BTL_UGNI_TAG_SEND);
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if (OPAL_UNLIKELY(GNI_RC_SUCCESS != rc)) {
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BTL_VERBOSE(("GNI_SmsgSendWTag failed with rc = %d", rc));
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if (OPAL_LIKELY(GNI_RC_NOT_DONE == rc)) {
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BTL_VERBOSE(("out of credits"));
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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return OMPI_ERROR;
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}
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if (MCA_BTL_DES_SEND_ALWAYS_CALLBACK & frag->base.des_flags) {
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/* completion callback */
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frag->base.des_cbfunc(&btl_peer->btl->super, btl_peer, &frag->base, OMPI_SUCCESS);
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}
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if (descriptor->des_flags & MCA_BTL_DES_FLAGS_BTL_OWNERSHIP) {
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MCA_BTL_UGNI_FRAG_RETURN (frag);
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}
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return 1;
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}
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