836 строки
29 KiB
C
836 строки
29 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* 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 "ompi_config.h"
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#include <string.h>
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#include <inttypes.h>
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#include "opal/util/output.h"
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#include "opal/util/if.h"
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#include "ompi/mca/pml/pml.h"
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#include "ompi/mca/btl/btl.h"
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#include "ompi/mca/btl/base/btl_base_error.h"
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#include "btl_openib.h"
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#include "btl_openib_frag.h"
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#include "btl_openib_proc.h"
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#include "btl_openib_endpoint.h"
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#include "ompi/datatype/convertor.h"
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#include "ompi/datatype/datatype.h"
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#include "ompi/mca/mpool/base/base.h"
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#include "ompi/mca/mpool/mpool.h"
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#include "ompi/mca/mpool/openib/mpool_openib.h"
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#include <errno.h>
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#include <string.h>
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#include <math.h>
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mca_btl_openib_module_t mca_btl_openib_module = {
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{
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&mca_btl_openib_component.super,
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0, /* max size of first fragment */
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0, /* min send fragment size */
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0, /* max send fragment size */
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0, /* min rdma fragment size */
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0, /* max rdma fragment size */
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0, /* exclusivity */
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0, /* latency */
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0, /* bandwidth */
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0, /* TODO this should be PUT btl flags */
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mca_btl_openib_add_procs,
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mca_btl_openib_del_procs,
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mca_btl_openib_register,
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mca_btl_openib_finalize,
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/* we need alloc free, pack */
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mca_btl_openib_alloc,
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mca_btl_openib_free,
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mca_btl_openib_prepare_src,
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mca_btl_openib_prepare_dst,
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mca_btl_openib_send,
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mca_btl_openib_put,
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mca_btl_openib_get,
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mca_btl_base_dump,
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NULL, /* mpool */
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mca_btl_openib_register_error_cb /* error call back registration */
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}
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};
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int mca_btl_openib_size_queues( struct mca_btl_openib_module_t* openib_btl, size_t nprocs);
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/*
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* add a proc to this btl module
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* creates an endpoint that is setup on the
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* first send to the endpoint
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*/
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int mca_btl_openib_add_procs(
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struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct ompi_proc_t **ompi_procs,
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struct mca_btl_base_endpoint_t** peers,
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ompi_bitmap_t* reachable)
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{
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mca_btl_openib_module_t* openib_btl = (mca_btl_openib_module_t*)btl;
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int i, rc;
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for(i = 0; i < (int) nprocs; i++) {
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struct ompi_proc_t* ompi_proc = ompi_procs[i];
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mca_btl_openib_proc_t* ib_proc;
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mca_btl_base_endpoint_t* ib_peer;
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if(NULL == (ib_proc = mca_btl_openib_proc_create(ompi_proc))) {
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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/*
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* Check to make sure that the peer has at least as many interface
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* addresses exported as we are trying to use. If not, then
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* don't bind this PTL instance to the proc.
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*/
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OPAL_THREAD_LOCK(&ib_proc->proc_lock);
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/* The btl_proc datastructure is shared by all IB PTL
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* instances that are trying to reach this destination.
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* Cache the peer instance on the btl_proc.
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*/
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ib_peer = OBJ_NEW(mca_btl_openib_endpoint_t);
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if(NULL == ib_peer) {
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OPAL_THREAD_UNLOCK(&ib_proc->proc_lock);
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return OMPI_ERR_OUT_OF_RESOURCE;
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}
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ib_peer->endpoint_btl = openib_btl;
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ib_peer->subnet = openib_btl->port_info.subnet;
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rc = mca_btl_openib_proc_insert(ib_proc, ib_peer);
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if(rc != OMPI_SUCCESS) {
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OBJ_RELEASE(ib_peer);
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OPAL_THREAD_UNLOCK(&ib_proc->proc_lock);
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continue;
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}
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orte_pointer_array_add((orte_std_cntr_t*)&ib_peer->index,
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openib_btl->endpoints, (void*)ib_peer);
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ompi_bitmap_set_bit(reachable, i);
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OPAL_THREAD_UNLOCK(&ib_proc->proc_lock);
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peers[i] = ib_peer;
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}
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return mca_btl_openib_size_queues(openib_btl, nprocs);
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}
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int mca_btl_openib_size_queues( struct mca_btl_openib_module_t* openib_btl, size_t nprocs)
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{
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int min_cq_size;
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int first_time = (0 == openib_btl->num_peers);
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int rc;
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openib_btl->num_peers += nprocs;
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if(mca_btl_openib_component.use_srq) {
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openib_btl->rd_num = mca_btl_openib_component.rd_num + log2(nprocs) * mca_btl_openib_component.srq_rd_per_peer;
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if(openib_btl->rd_num > mca_btl_openib_component.srq_rd_max)
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openib_btl->rd_num = mca_btl_openib_component.srq_rd_max;
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openib_btl->rd_low = openib_btl->rd_num - 1;
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min_cq_size = openib_btl->rd_num * 2 * openib_btl->num_peers;
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if(!first_time) {
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struct ibv_srq_attr srq_attr;
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srq_attr.max_wr = openib_btl->rd_num;
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rc = ibv_modify_srq(openib_btl->srq[BTL_OPENIB_HP_QP],
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&srq_attr, IBV_SRQ_MAX_WR);
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if(rc) {
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BTL_ERROR(("cannot resize high priority shared receive queue, error: %d", rc));
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return OMPI_ERROR;
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}
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rc = ibv_modify_srq(openib_btl->srq[BTL_OPENIB_LP_QP],
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&srq_attr, IBV_SRQ_MAX_WR);
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if(rc) {
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BTL_ERROR(("cannot resize low priority shared receive queue, error: %d", rc));
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return OMPI_ERROR;
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}
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}
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} else
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{
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min_cq_size = ( mca_btl_openib_component.rd_num > (int32_t) mca_btl_openib_component.eager_rdma_num ?
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mca_btl_openib_component.rd_num : (int32_t) mca_btl_openib_component.eager_rdma_num ) *
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2 * openib_btl->num_peers;
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}
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if(min_cq_size > (int32_t) mca_btl_openib_component.ib_cq_size) {
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mca_btl_openib_component.ib_cq_size = min_cq_size > openib_btl->hca->ib_dev_attr.max_cq ?
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openib_btl->hca->ib_dev_attr.max_cq : min_cq_size;
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#if OMPI_MCA_BTL_OPENIB_HAVE_RESIZE_CQ
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if(!first_time) {
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rc = ibv_resize_cq(openib_btl->ib_cq_lp, mca_btl_openib_component.ib_cq_size);
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if(rc) {
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BTL_ERROR(("cannot resize low priority completion queue, error: %d", rc));
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return OMPI_ERROR;
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}
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rc = ibv_resize_cq(openib_btl->ib_cq_hp, mca_btl_openib_component.ib_cq_size);
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if(rc) {
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BTL_ERROR(("cannot resize high priority completion queue, error: %d", rc));
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return OMPI_ERROR;
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}
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}
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#endif
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}
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if(first_time) {
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/* never been here before, setup cq and srq */
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mca_btl_openib_component.ib_cq_size = (int) mca_btl_openib_component.ib_cq_size >
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openib_btl->hca->ib_dev_attr.max_cq ?
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openib_btl->hca->ib_dev_attr.max_cq :
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(int) mca_btl_openib_component.ib_cq_size;
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return mca_btl_openib_create_cq_srq(openib_btl);
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}
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return OMPI_SUCCESS;
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}
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/*
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* delete the proc as reachable from this btl module
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*/
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int mca_btl_openib_del_procs(struct mca_btl_base_module_t* btl,
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size_t nprocs,
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struct ompi_proc_t **procs,
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struct mca_btl_base_endpoint_t ** peers)
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{
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BTL_DEBUG(("TODO\n"));
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return OMPI_SUCCESS;
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}
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/*
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*Register callback function to support send/recv semantics
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*/
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int mca_btl_openib_register(
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struct mca_btl_base_module_t* btl,
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mca_btl_base_tag_t tag,
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mca_btl_base_module_recv_cb_fn_t cbfunc,
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void* cbdata)
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{
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mca_btl_openib_module_t* openib_btl = (mca_btl_openib_module_t*) btl;
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OPAL_THREAD_LOCK(&openib_btl->ib_lock);
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openib_btl->ib_reg[tag].cbfunc = cbfunc;
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openib_btl->ib_reg[tag].cbdata = cbdata;
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OPAL_THREAD_UNLOCK(&openib_btl->ib_lock);
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return OMPI_SUCCESS;
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}
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/*
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*Register callback function for error handling..
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*/
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int mca_btl_openib_register_error_cb(
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struct mca_btl_base_module_t* btl,
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mca_btl_base_module_error_cb_fn_t cbfunc)
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{
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mca_btl_openib_module_t* openib_btl = (mca_btl_openib_module_t*) btl;
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openib_btl->error_cb = cbfunc; /* stash for later */
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return OMPI_SUCCESS;
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}
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/**
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* Allocate a segment.
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*
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* @param btl (IN) BTL module
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* @param size (IN) Request segment size.
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*
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* When allocating a segment we pull a pre-alllocated segment
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* from one of two free lists, an eager list and a max list
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*/
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mca_btl_base_descriptor_t* mca_btl_openib_alloc(
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struct mca_btl_base_module_t* btl,
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size_t size)
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{
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mca_btl_openib_frag_t* frag = NULL;
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mca_btl_openib_module_t* openib_btl;
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int rc;
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openib_btl = (mca_btl_openib_module_t*) btl;
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if(size <= mca_btl_openib_component.eager_limit){
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MCA_BTL_IB_FRAG_ALLOC_EAGER(btl, frag, rc);
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} else if(size <= mca_btl_openib_component.max_send_size) {
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MCA_BTL_IB_FRAG_ALLOC_MAX(btl, frag, rc);
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}
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if(NULL == frag)
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return NULL;
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frag->segment.seg_len = size <= openib_btl->super.btl_eager_limit ? size : openib_btl->super.btl_eager_limit;
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frag->base.des_flags = 0;
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return (mca_btl_base_descriptor_t*)frag;
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}
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/**
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* Return a segment
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*
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* Return the segment to the appropriate
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* preallocated segment list
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*/
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int mca_btl_openib_free(
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struct mca_btl_base_module_t* btl,
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mca_btl_base_descriptor_t* des)
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{
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mca_btl_openib_frag_t* frag = (mca_btl_openib_frag_t*)des;
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if(frag->size == 0) {
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btl->btl_mpool->mpool_release(btl->btl_mpool,
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(mca_mpool_base_registration_t*)
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frag->openib_reg);
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}
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MCA_BTL_IB_FRAG_RETURN(((mca_btl_openib_module_t*) btl), frag);
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return OMPI_SUCCESS;
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}
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/**
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* register user buffer or pack
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* data into pre-registered buffer and return a
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* descriptor that can be
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* used for send/put.
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*
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* @param btl (IN) BTL module
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* @param peer (IN) BTL peer addressing
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*
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* prepare source's behavior depends on the following:
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* Has a valid memory registration been passed to prepare_src?
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* if so we attempt to use the pre-registred user-buffer, if the memory registration
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* is to small (only a portion of the user buffer) then we must reregister the user buffer
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* Has the user requested the memory to be left pinned?
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* if so we insert the memory registration into a memory tree for later lookup, we
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* may also remove a previous registration if a MRU (most recently used) list of
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* registions is full, this prevents resources from being exhausted.
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* Is the requested size larger than the btl's max send size?
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* if so and we aren't asked to leave the registration pinned than we register the memory if
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* the users buffer is contiguous
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* Otherwise we choose from two free lists of pre-registered memory in which to pack the data into.
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*
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*/
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mca_btl_base_descriptor_t* mca_btl_openib_prepare_src(
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struct mca_btl_base_module_t* btl,
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struct mca_btl_base_endpoint_t* endpoint,
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mca_mpool_base_registration_t* registration,
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struct ompi_convertor_t* convertor,
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size_t reserve,
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size_t* size
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)
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{
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mca_btl_openib_module_t* openib_btl;
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mca_btl_openib_frag_t* frag;
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mca_mpool_openib_registration_t * openib_reg;
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struct iovec iov;
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uint32_t iov_count = 1;
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size_t max_data = *size;
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int32_t free_after;
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int rc;
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openib_btl = (mca_btl_openib_module_t*) btl;
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openib_reg = (mca_mpool_openib_registration_t*) registration;
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if(NULL != openib_reg && 0 == ompi_convertor_need_buffers(convertor)){
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size_t reg_len;
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/* the memory is already pinned and we have contiguous user data */
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MCA_BTL_IB_FRAG_ALLOC_FRAG(btl, frag, rc);
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if(NULL == frag){
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return NULL;
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}
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iov.iov_len = max_data;
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iov.iov_base = NULL;
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ompi_convertor_pack(convertor, &iov, &iov_count, &max_data, &free_after);
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frag->segment.seg_len = max_data;
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frag->segment.seg_addr.pval = iov.iov_base;
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reg_len = (unsigned char*)openib_reg->base_reg.bound - (unsigned char*)iov.iov_base + 1;
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frag->mr = openib_reg->mr;
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frag->sg_entry.length = max_data;
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frag->sg_entry.lkey = frag->mr->lkey;
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frag->sg_entry.addr = (unsigned long) iov.iov_base;
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frag->segment.seg_key.key32[0] = (uint32_t) frag->sg_entry.lkey;
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frag->base.des_src = &frag->segment;
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frag->base.des_src_cnt = 1;
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frag->base.des_dst = NULL;
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frag->base.des_dst_cnt = 0;
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frag->base.des_flags = 0;
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frag->openib_reg= openib_reg;
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btl->btl_mpool->mpool_retain(btl->btl_mpool, (mca_mpool_base_registration_t*) openib_reg);
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return &frag->base;
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} else if( max_data > btl->btl_max_send_size &&
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ompi_convertor_need_buffers(convertor) == 0 &&
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reserve == 0) {
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/* The user buffer is contigous and we are asked to send more than the max send size. */
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MCA_BTL_IB_FRAG_ALLOC_FRAG(openib_btl, frag, rc);
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if(NULL == frag){
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return NULL;
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}
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iov.iov_len = max_data;
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iov.iov_base = NULL;
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ompi_convertor_pack(convertor, &iov, &iov_count, &max_data, &free_after);
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frag->segment.seg_len = max_data;
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frag->segment.seg_addr.pval = iov.iov_base;
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frag->base.des_flags = 0;
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rc = btl->btl_mpool->mpool_register(btl->btl_mpool,
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iov.iov_base,
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max_data,
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0,
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(mca_mpool_base_registration_t**) &openib_reg);
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if(OMPI_SUCCESS != rc || NULL == openib_reg) {
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MCA_BTL_IB_FRAG_RETURN(openib_btl, frag);
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return NULL;
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}
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frag->mr = openib_reg->mr;
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frag->sg_entry.length = max_data;
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frag->sg_entry.lkey = openib_reg->mr->lkey;
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frag->sg_entry.addr = (unsigned long) iov.iov_base;
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frag->segment.seg_key.key32[0] = (uint32_t) frag->mr->rkey;
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frag->base.des_src = &frag->segment;
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frag->base.des_src_cnt = 1;
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frag->base.des_dst = NULL;
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frag->base.des_dst_cnt = 0;
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frag->openib_reg = openib_reg;
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BTL_VERBOSE(("frag->sg_entry.lkey = %lu .addr = %llu", frag->sg_entry.lkey, frag->sg_entry.addr));
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return &frag->base;
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} else if (max_data+reserve <= btl->btl_eager_limit) {
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/* the data is small enough to fit in the eager frag and
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either we received no prepinned memory or leave pinned is
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not set
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*/
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MCA_BTL_IB_FRAG_ALLOC_EAGER(btl, frag, rc);
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if(NULL == frag) {
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return NULL;
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}
|
|
|
|
iov.iov_len = max_data;
|
|
iov.iov_base = (unsigned char*)frag->segment.seg_addr.pval + reserve;
|
|
|
|
rc = ompi_convertor_pack(convertor, &iov, &iov_count, &max_data, &free_after);
|
|
*size = max_data;
|
|
if( rc < 0 ) {
|
|
MCA_BTL_IB_FRAG_RETURN(openib_btl, frag);
|
|
return NULL;
|
|
}
|
|
|
|
frag->segment.seg_len = max_data + reserve;
|
|
frag->segment.seg_key.key32[0] = (uint32_t) frag->sg_entry.lkey;
|
|
frag->base.des_src = &frag->segment;
|
|
frag->base.des_src_cnt = 1;
|
|
frag->base.des_dst = NULL;
|
|
frag->base.des_dst_cnt = 0;
|
|
frag->base.des_flags = 0;
|
|
|
|
return &frag->base;
|
|
|
|
} else {
|
|
|
|
MCA_BTL_IB_FRAG_ALLOC_MAX(btl, frag, rc);
|
|
if(NULL == frag) {
|
|
return NULL;
|
|
}
|
|
if(max_data + reserve > btl->btl_max_send_size){
|
|
max_data = btl->btl_max_send_size - reserve;
|
|
}
|
|
iov.iov_len = max_data;
|
|
iov.iov_base = (unsigned char*)frag->segment.seg_addr.pval + reserve;
|
|
|
|
rc = ompi_convertor_pack(convertor, &iov, &iov_count, &max_data, &free_after);
|
|
*size = max_data;
|
|
|
|
if( rc < 0 ) {
|
|
MCA_BTL_IB_FRAG_RETURN(openib_btl, frag);
|
|
return NULL;
|
|
}
|
|
|
|
frag->segment.seg_len = max_data + reserve;
|
|
frag->segment.seg_key.key32[0] = (uint32_t) frag->sg_entry.lkey;
|
|
frag->base.des_src = &frag->segment;
|
|
frag->base.des_src_cnt = 1;
|
|
frag->base.des_dst = NULL;
|
|
frag->base.des_dst_cnt = 0;
|
|
frag->base.des_flags=0;
|
|
|
|
return &frag->base;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Prepare the dst buffer
|
|
*
|
|
* @param btl (IN) BTL module
|
|
* @param peer (IN) BTL peer addressing
|
|
* prepare dest's behavior depends on the following:
|
|
* Has a valid memory registration been passed to prepare_src?
|
|
* if so we attempt to use the pre-registred user-buffer, if the memory registration
|
|
* is to small (only a portion of the user buffer) then we must reregister the user buffer
|
|
* Has the user requested the memory to be left pinned?
|
|
* if so we insert the memory registration into a memory tree for later lookup, we
|
|
* may also remove a previous registration if a MRU (most recently used) list of
|
|
* registions is full, this prevents resources from being exhausted.
|
|
*/
|
|
mca_btl_base_descriptor_t* mca_btl_openib_prepare_dst(
|
|
struct mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
mca_mpool_base_registration_t* registration,
|
|
struct ompi_convertor_t* convertor,
|
|
size_t reserve,
|
|
size_t* size)
|
|
{
|
|
mca_btl_openib_module_t* openib_btl;
|
|
mca_btl_openib_frag_t* frag;
|
|
mca_mpool_openib_registration_t * openib_reg;
|
|
int rc;
|
|
long lb;
|
|
size_t reg_len;
|
|
|
|
openib_btl = (mca_btl_openib_module_t*) btl;
|
|
openib_reg = (mca_mpool_openib_registration_t*) registration;
|
|
|
|
MCA_BTL_IB_FRAG_ALLOC_FRAG(btl, frag, rc);
|
|
if(NULL == frag){
|
|
return NULL;
|
|
}
|
|
|
|
ompi_ddt_type_lb(convertor->pDesc, &lb);
|
|
frag->segment.seg_len = *size;
|
|
frag->segment.seg_addr.pval = convertor->pBaseBuf + lb + convertor->bConverted;
|
|
frag->base.des_flags = 0;
|
|
|
|
if(NULL!= openib_reg){
|
|
/* the memory is already pinned try to use it if the pinned region is large enough*/
|
|
reg_len = (unsigned char*)openib_reg->base_reg.bound - (unsigned char*)frag->segment.seg_addr.pval + 1;
|
|
btl->btl_mpool->mpool_retain(btl->btl_mpool,
|
|
(mca_mpool_base_registration_t*) openib_reg);
|
|
} else {
|
|
/* we didn't get a memory registration passed in, so we have to register the region
|
|
* ourselves
|
|
*/
|
|
|
|
rc = btl->btl_mpool->mpool_register(btl->btl_mpool,
|
|
frag->segment.seg_addr.pval,
|
|
*size,
|
|
0,
|
|
(mca_mpool_base_registration_t**) &openib_reg);
|
|
if(OMPI_SUCCESS != rc || NULL == openib_reg) {
|
|
MCA_BTL_IB_FRAG_RETURN(openib_btl, frag);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
|
|
frag->mr = openib_reg->mr;
|
|
frag->sg_entry.length = *size;
|
|
frag->sg_entry.lkey = openib_reg->mr->lkey;
|
|
frag->sg_entry.addr = (unsigned long) frag->segment.seg_addr.pval;
|
|
|
|
frag->segment.seg_key.key32[0] = frag->mr->rkey;
|
|
|
|
frag->base.des_dst = &frag->segment;
|
|
frag->base.des_dst_cnt = 1;
|
|
frag->base.des_src = NULL;
|
|
frag->base.des_src_cnt = 0;
|
|
frag->openib_reg = openib_reg;
|
|
BTL_VERBOSE(("frag->sg_entry.lkey = %lu .addr = %llu frag->segment.seg_key.key32[0] = %lu" , frag->sg_entry.lkey, frag->sg_entry.addr, frag->segment.seg_key.key32[0]));
|
|
|
|
return &frag->base;
|
|
|
|
}
|
|
|
|
int mca_btl_openib_finalize(struct mca_btl_base_module_t* btl)
|
|
{
|
|
mca_btl_openib_module_t* openib_btl;
|
|
openib_btl = (mca_btl_openib_module_t*) btl;
|
|
|
|
#if 0
|
|
if(openib_btl->send_free_eager.fl_num_allocated !=
|
|
openib_btl->send_free_eager.super.opal_list_length){
|
|
opal_output(0, "btl ib send_free_eager frags: %d allocated %d returned \n",
|
|
openib_btl->send_free_eager.fl_num_allocated,
|
|
openib_btl->send_free_eager.super.opal_list_length);
|
|
}
|
|
if(openib_btl->send_free_max.fl_num_allocated !=
|
|
openib_btl->send_free_max.super.opal_list_length){
|
|
opal_output(0, "btl ib send_free_max frags: %d allocated %d returned \n",
|
|
openib_btl->send_free_max.fl_num_allocated,
|
|
openib_btl->send_free_max.super.opal_list_length);
|
|
}
|
|
if(openib_btl->send_free_frag.fl_num_allocated !=
|
|
openib_btl->send_free_frag.super.opal_list_length){
|
|
opal_output(0, "btl ib send_free_frag frags: %d allocated %d returned \n",
|
|
openib_btl->send_free_frag.fl_num_allocated,
|
|
openib_btl->send_free_frag.super.opal_list_length);
|
|
}
|
|
|
|
if(openib_btl->recv_free_eager.fl_num_allocated !=
|
|
openib_btl->recv_free_eager.super.opal_list_length){
|
|
opal_output(0, "btl ib recv_free_eager frags: %d allocated %d returned \n",
|
|
openib_btl->recv_free_eager.fl_num_allocated,
|
|
openib_btl->recv_free_eager.super.opal_list_length);
|
|
}
|
|
|
|
if(openib_btl->recv_free_max.fl_num_allocated !=
|
|
openib_btl->recv_free_max.super.opal_list_length){
|
|
opal_output(0, "btl ib recv_free_max frags: %d allocated %d returned \n",
|
|
openib_btl->recv_free_max.fl_num_allocated,
|
|
openib_btl->recv_free_max.super.opal_list_length);
|
|
}
|
|
#endif
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* Initiate a send.
|
|
*/
|
|
|
|
int mca_btl_openib_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_openib_frag_t* frag = (mca_btl_openib_frag_t*)descriptor;
|
|
frag->endpoint = endpoint;
|
|
frag->hdr->tag = tag;
|
|
frag->wr_desc.sr_desc.opcode = IBV_WR_SEND;
|
|
return mca_btl_openib_endpoint_send(endpoint, frag);
|
|
}
|
|
|
|
/*
|
|
* RDMA WRITE local buffer to remote buffer address.
|
|
*/
|
|
|
|
int mca_btl_openib_put( mca_btl_base_module_t* btl,
|
|
mca_btl_base_endpoint_t* endpoint,
|
|
mca_btl_base_descriptor_t* descriptor)
|
|
{
|
|
int rc;
|
|
struct ibv_send_wr* bad_wr;
|
|
mca_btl_openib_frag_t* frag = (mca_btl_openib_frag_t*) descriptor;
|
|
mca_btl_openib_module_t* openib_btl = (mca_btl_openib_module_t*) btl;
|
|
|
|
/* setup for queued requests */
|
|
frag->endpoint = endpoint;
|
|
frag->wr_desc.sr_desc.opcode = IBV_WR_RDMA_WRITE;
|
|
|
|
/* check for a send wqe */
|
|
if (OPAL_THREAD_ADD32(&endpoint->sd_wqe[BTL_OPENIB_LP_QP],-1) < 0) {
|
|
|
|
OPAL_THREAD_ADD32(&endpoint->sd_wqe[BTL_OPENIB_LP_QP],1);
|
|
OPAL_THREAD_LOCK(&endpoint->endpoint_lock);
|
|
opal_list_append(&endpoint->pending_frags[BTL_OPENIB_LP_QP], (opal_list_item_t *)frag);
|
|
OPAL_THREAD_UNLOCK(&endpoint->endpoint_lock);
|
|
return OMPI_SUCCESS;
|
|
|
|
/* post descriptor */
|
|
} else {
|
|
|
|
frag->wr_desc.sr_desc.send_flags = IBV_SEND_SIGNALED;
|
|
frag->wr_desc.sr_desc.wr.rdma.remote_addr = (unsigned long) frag->base.des_dst->seg_addr.pval;
|
|
frag->wr_desc.sr_desc.wr.rdma.rkey = frag->base.des_dst->seg_key.key32[0];
|
|
frag->sg_entry.addr = (unsigned long) frag->base.des_src->seg_addr.pval;
|
|
frag->sg_entry.length = frag->base.des_src->seg_len;
|
|
|
|
if(ibv_post_send(endpoint->lcl_qp[BTL_OPENIB_LP_QP],
|
|
&frag->wr_desc.sr_desc,
|
|
&bad_wr)){
|
|
rc = OMPI_ERROR;
|
|
} else {
|
|
rc = OMPI_SUCCESS;
|
|
}
|
|
|
|
if(mca_btl_openib_component.use_srq) {
|
|
mca_btl_openib_post_srr(openib_btl, 1, BTL_OPENIB_HP_QP);
|
|
mca_btl_openib_post_srr(openib_btl, 1, BTL_OPENIB_LP_QP);
|
|
} else {
|
|
btl_openib_endpoint_post_rr(endpoint, 1, BTL_OPENIB_HP_QP);
|
|
btl_openib_endpoint_post_rr(endpoint, 1, BTL_OPENIB_LP_QP);
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
|
|
/*
|
|
* RDMA READ remote buffer to local buffer address.
|
|
*/
|
|
|
|
int mca_btl_openib_get( mca_btl_base_module_t* btl,
|
|
mca_btl_base_endpoint_t* endpoint,
|
|
mca_btl_base_descriptor_t* descriptor)
|
|
{
|
|
int rc;
|
|
struct ibv_send_wr* bad_wr;
|
|
mca_btl_openib_frag_t* frag = (mca_btl_openib_frag_t*) descriptor;
|
|
mca_btl_openib_module_t* openib_btl = (mca_btl_openib_module_t*) btl;
|
|
frag->endpoint = endpoint;
|
|
frag->wr_desc.sr_desc.opcode = IBV_WR_RDMA_READ;
|
|
|
|
/* check for a send wqe */
|
|
if (OPAL_THREAD_ADD32(&endpoint->sd_wqe[BTL_OPENIB_LP_QP],-1) < 0) {
|
|
|
|
OPAL_THREAD_ADD32(&endpoint->sd_wqe[BTL_OPENIB_LP_QP],1);
|
|
OPAL_THREAD_LOCK(&endpoint->endpoint_lock);
|
|
opal_list_append(&endpoint->pending_frags[BTL_OPENIB_LP_QP], (opal_list_item_t *)frag);
|
|
OPAL_THREAD_UNLOCK(&endpoint->endpoint_lock);
|
|
return OMPI_SUCCESS;
|
|
|
|
/* check for a get token */
|
|
} else if(OPAL_THREAD_ADD32(&endpoint->get_tokens,-1) < 0) {
|
|
|
|
OPAL_THREAD_ADD32(&endpoint->sd_wqe[BTL_OPENIB_LP_QP],1);
|
|
OPAL_THREAD_ADD32(&endpoint->get_tokens,1);
|
|
OPAL_THREAD_LOCK(&endpoint->endpoint_lock);
|
|
opal_list_append(&endpoint->pending_frags[BTL_OPENIB_LP_QP], (opal_list_item_t*)frag);
|
|
OPAL_THREAD_UNLOCK(&endpoint->endpoint_lock);
|
|
return OMPI_SUCCESS;
|
|
|
|
} else {
|
|
|
|
frag->wr_desc.sr_desc.send_flags = IBV_SEND_SIGNALED;
|
|
frag->wr_desc.sr_desc.wr.rdma.remote_addr = (unsigned long) frag->base.des_src->seg_addr.pval;
|
|
frag->wr_desc.sr_desc.wr.rdma.rkey = frag->base.des_src->seg_key.key32[0];
|
|
frag->sg_entry.addr = (unsigned long) frag->base.des_dst->seg_addr.pval;
|
|
frag->sg_entry.length = frag->base.des_dst->seg_len;
|
|
|
|
if(ibv_post_send(endpoint->lcl_qp[BTL_OPENIB_LP_QP],
|
|
&frag->wr_desc.sr_desc,
|
|
&bad_wr)){
|
|
BTL_ERROR(("error posting send request errno (%d) says %s", errno, strerror(errno)));
|
|
rc = ORTE_ERROR;
|
|
} else {
|
|
rc = ORTE_SUCCESS;
|
|
}
|
|
|
|
if(mca_btl_openib_component.use_srq) {
|
|
mca_btl_openib_post_srr(openib_btl, 1, BTL_OPENIB_HP_QP);
|
|
mca_btl_openib_post_srr(openib_btl, 1, BTL_OPENIB_LP_QP);
|
|
} else {
|
|
btl_openib_endpoint_post_rr(endpoint, 1, BTL_OPENIB_HP_QP);
|
|
btl_openib_endpoint_post_rr(endpoint, 1, BTL_OPENIB_LP_QP);
|
|
}
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/*
|
|
* create both the high and low priority completion queues
|
|
* and the shared receive queue (if requested)
|
|
*/
|
|
int mca_btl_openib_create_cq_srq(mca_btl_openib_module_t *openib_btl)
|
|
{
|
|
/* Allocate Protection Domain */
|
|
openib_btl->poll_cq = false;
|
|
|
|
if(mca_btl_openib_component.use_srq) {
|
|
|
|
struct ibv_srq_init_attr attr;
|
|
attr.attr.max_wr = mca_btl_openib_component.srq_rd_max;
|
|
attr.attr.max_sge = mca_btl_openib_component.ib_sg_list_size;
|
|
|
|
openib_btl->srd_posted[BTL_OPENIB_HP_QP] = 0;
|
|
openib_btl->srd_posted[BTL_OPENIB_LP_QP] = 0;
|
|
|
|
openib_btl->srq[BTL_OPENIB_HP_QP] =
|
|
ibv_create_srq(openib_btl->hca->ib_pd, &attr);
|
|
if(NULL == openib_btl->srq[BTL_OPENIB_HP_QP]) {
|
|
BTL_ERROR(("error in ibv_create_srq\n"));
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
openib_btl->srq[BTL_OPENIB_LP_QP] =
|
|
ibv_create_srq(openib_btl->hca->ib_pd, &attr);
|
|
if(NULL == openib_btl->srq[BTL_OPENIB_LP_QP]) {
|
|
BTL_ERROR(("error in ibv_create_srq\n"));
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
|
|
} else {
|
|
openib_btl->srq[BTL_OPENIB_HP_QP] = NULL;
|
|
openib_btl->srq[BTL_OPENIB_LP_QP] = NULL;
|
|
}
|
|
|
|
/* Create the low and high priority queue pairs */
|
|
#if OMPI_MCA_BTL_OPENIB_IBV_CREATE_CQ_ARGS == 3
|
|
openib_btl->ib_cq_lp =
|
|
ibv_create_cq(openib_btl->hca->ib_dev_context,
|
|
mca_btl_openib_component.ib_cq_size, NULL);
|
|
#else
|
|
openib_btl->ib_cq_lp =
|
|
ibv_create_cq(openib_btl->hca->ib_dev_context,
|
|
mca_btl_openib_component.ib_cq_size, NULL, NULL, 0);
|
|
#endif
|
|
|
|
if(NULL == openib_btl->ib_cq_lp) {
|
|
BTL_ERROR(("error creating low priority cq for %s errno says %s\n",
|
|
ibv_get_device_name(openib_btl->hca->ib_dev),
|
|
strerror(errno)));
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
#if OMPI_MCA_BTL_OPENIB_IBV_CREATE_CQ_ARGS == 3
|
|
openib_btl->ib_cq_hp =
|
|
ibv_create_cq(openib_btl->hca->ib_dev_context,
|
|
mca_btl_openib_component.ib_cq_size, NULL);
|
|
#else
|
|
openib_btl->ib_cq_hp =
|
|
ibv_create_cq(openib_btl->hca->ib_dev_context,
|
|
mca_btl_openib_component.ib_cq_size, NULL, NULL, 0);
|
|
#endif
|
|
|
|
if(NULL == openib_btl->ib_cq_hp) {
|
|
BTL_ERROR(("error creating high priority cq for %s errno says %s\n",
|
|
ibv_get_device_name(openib_btl->hca->ib_dev),
|
|
strerror(errno)));
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|