/** * Initiate a send to the peer. * * @param btl (IN) BTL module * @param peer (IN) BTL peer addressing */ int mca_btl_vader_send (struct mca_btl_base_module_t *btl, struct mca_btl_base_endpoint_t *endpoint, struct mca_btl_base_descriptor_t *descriptor, mca_btl_base_tag_t tag) { mca_btl_vader_frag_t *frag = (mca_btl_vader_frag_t *) descriptor; if (OPAL_LIKELY(frag->fbox)) { mca_btl_vader_fbox_send (frag->fbox, tag, frag->segments[0].seg_len); mca_btl_vader_frag_complete (frag); return 1; } /* header (+ optional inline data) */ frag->hdr->len = frag->segments[0].seg_len; /* type of message, pt-2-pt, one-sided, etc */ frag->hdr->tag = tag; /* post the relative address of the descriptor into the peer's fifo */ vader_fifo_write_ep (frag->hdr, endpoint); if ((frag->hdr->flags & MCA_BTL_VADER_FLAG_SINGLE_COPY) || !(frag->base.des_flags & MCA_BTL_DES_FLAGS_BTL_OWNERSHIP)) { frag->base.des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK; return 0; } /* data is gone (from the pml's perspective). frag callback/release will happen later */ return 1; }
/** * Initiate a send to the peer. * * @param btl (IN) BTL module * @param peer (IN) BTL peer addressing */ int mca_btl_vader_send (struct mca_btl_base_module_t *btl, struct mca_btl_base_endpoint_t *endpoint, struct mca_btl_base_descriptor_t *descriptor, mca_btl_base_tag_t tag) { mca_btl_vader_frag_t *frag = (mca_btl_vader_frag_t *) descriptor; const size_t total_size = frag->segments[0].seg_len; if (OPAL_LIKELY(frag->fbox)) { mca_btl_vader_fbox_send (frag->fbox, tag); mca_btl_vader_frag_complete (frag); return 1; } /* header (+ optional inline data) */ frag->hdr->len = total_size; /* type of message, pt-2-pt, one-sided, etc */ frag->hdr->tag = tag; /* post the relative address of the descriptor into the peer's fifo */ if (opal_list_get_size (&endpoint->pending_frags) || !vader_fifo_write_ep (frag->hdr, endpoint)) { frag->base.des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK; OPAL_THREAD_LOCK(&endpoint->pending_frags_lock); opal_list_append (&endpoint->pending_frags, (opal_list_item_t *) frag); if (!endpoint->waiting) { OPAL_THREAD_LOCK(&mca_btl_vader_component.lock); opal_list_append (&mca_btl_vader_component.pending_endpoints, &endpoint->super); OPAL_THREAD_UNLOCK(&mca_btl_vader_component.lock); endpoint->waiting = true; } OPAL_THREAD_UNLOCK(&endpoint->pending_frags_lock); return OPAL_SUCCESS; } if ((frag->hdr->flags & MCA_BTL_VADER_FLAG_SINGLE_COPY) || !(frag->base.des_flags & MCA_BTL_DES_FLAGS_BTL_OWNERSHIP)) { frag->base.des_flags |= MCA_BTL_DES_SEND_ALWAYS_CALLBACK; return OPAL_SUCCESS; } /* data is gone (from the pml's perspective). frag callback/release will happen later */ return 1; }