1105 строки
40 KiB
C
1105 строки
40 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 <sys/time.h>
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#include <time.h>
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#include "include/types.h"
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#include "mca/pml/base/pml_base_sendreq.h"
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#include "mca/ns/base/base.h"
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#include "mca/oob/base/base.h"
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#include "mca/rml/rml.h"
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#include "mca/errmgr/errmgr.h"
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#include "dps/dps.h"
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#include "btl_mvapi.h"
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#include "btl_mvapi_endpoint.h"
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#include "btl_mvapi_proc.h"
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#include "btl_mvapi_frag.h"
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#include "class/ompi_free_list.h"
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static void mca_btl_mvapi_endpoint_construct(mca_btl_base_endpoint_t* endpoint);
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static void mca_btl_mvapi_endpoint_destruct(mca_btl_base_endpoint_t* endpoint);
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int mca_btl_mvapi_endpoint_create_qp(
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mca_btl_mvapi_module_t* mvapi_btl,
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VAPI_hca_hndl_t nic,
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VAPI_pd_hndl_t ptag,
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VAPI_cq_hndl_t cq_hndl,
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#ifdef VAPI_FEATURE_SRQ
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VAPI_srq_hndl_t srq_hndl,
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#endif
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VAPI_qp_hndl_t* qp_hndl,
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VAPI_qp_prop_t* qp_prop,
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int transport_type
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);
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int mca_btl_mvapi_endpoint_qp_init_query(
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mca_btl_mvapi_module_t* mvapi_btl,
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VAPI_hca_hndl_t nic,
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VAPI_qp_hndl_t qp_hndl,
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VAPI_qp_num_t remote_qp_num,
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IB_lid_t remote_lid,
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IB_port_t port_id
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);
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/*
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* Note this routine must be called w/ endpoint lock held.
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*/
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static inline int mca_btl_mvapi_endpoint_post_send(
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mca_btl_mvapi_module_t* mvapi_btl,
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mca_btl_mvapi_endpoint_t * endpoint,
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mca_btl_mvapi_frag_t * frag)
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{
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VAPI_qp_hndl_t qp_hndl;
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int ret;
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if(frag->base.des_flags & MCA_BTL_DES_FLAGS_PRIORITY && frag->size <= mvapi_btl->super.btl_eager_limit){
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/* check for a send wqe */
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if (OPAL_THREAD_ADD32(&endpoint->sd_wqe_hp,-1) < 0) {
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OPAL_THREAD_ADD32(&endpoint->sd_wqe_hp,1);
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opal_list_append(&endpoint->pending_frags_hp, (opal_list_item_t *)frag);
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return OMPI_SUCCESS;
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/* check for a token */
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} else if(!mca_btl_mvapi_component.use_srq &&
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OPAL_THREAD_ADD32(&endpoint->sd_tokens_hp,-1) < 0) {
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OPAL_THREAD_ADD32(&endpoint->sd_wqe_hp,1);
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OPAL_THREAD_ADD32(&endpoint->sd_tokens_hp,1);
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opal_list_append(&endpoint->pending_frags_hp, (opal_list_item_t *)frag);
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return OMPI_SUCCESS;
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} else if( mca_btl_mvapi_component.use_srq &&
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OPAL_THREAD_ADD32(&mvapi_btl->sd_tokens_hp,-1) < 0) {
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OPAL_THREAD_ADD32(&endpoint->sd_wqe_hp,1);
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OPAL_THREAD_ADD32(&mvapi_btl->sd_tokens_hp,1);
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OPAL_THREAD_LOCK(&mvapi_btl->ib_lock);
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opal_list_append(&mvapi_btl->pending_frags_hp, (opal_list_item_t *)frag);
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OPAL_THREAD_UNLOCK(&mvapi_btl->ib_lock);
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return OMPI_SUCCESS;
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/* queue the request */
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} else {
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frag->hdr->credits = (endpoint->rd_credits_hp > 0) ? endpoint->rd_credits_hp : 0;
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OPAL_THREAD_ADD32(&endpoint->rd_credits_hp, -frag->hdr->credits);
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qp_hndl = endpoint->lcl_qp_hndl_hp;
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}
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} else {
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/* check for a send wqe */
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if (OPAL_THREAD_ADD32(&endpoint->sd_wqe_lp,-1) < 0) {
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OPAL_THREAD_ADD32(&endpoint->sd_wqe_lp,1);
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opal_list_append(&endpoint->pending_frags_lp, (opal_list_item_t *)frag);
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return OMPI_SUCCESS;
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/* check for a token */
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} else if(!mca_btl_mvapi_component.use_srq &&
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OPAL_THREAD_ADD32(&endpoint->sd_tokens_lp,-1) < 0 ) {
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OPAL_THREAD_ADD32(&endpoint->sd_wqe_lp,1);
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OPAL_THREAD_ADD32(&endpoint->sd_tokens_lp,1);
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opal_list_append(&endpoint->pending_frags_lp, (opal_list_item_t *)frag);
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return OMPI_SUCCESS;
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} else if(mca_btl_mvapi_component.use_srq &&
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OPAL_THREAD_ADD32(&mvapi_btl->sd_tokens_lp,-1) < 0) {
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OPAL_THREAD_ADD32(&endpoint->sd_wqe_lp,1);
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OPAL_THREAD_ADD32(&mvapi_btl->sd_tokens_lp,1);
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OPAL_THREAD_LOCK(&mvapi_btl->ib_lock);
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opal_list_append(&mvapi_btl->pending_frags_lp, (opal_list_item_t *)frag);
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OPAL_THREAD_UNLOCK(&mvapi_btl->ib_lock);
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return OMPI_SUCCESS;
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/* queue the request */
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} else {
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frag->hdr->credits = (endpoint->rd_credits_lp > 0) ? endpoint->rd_credits_lp : 0;
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OPAL_THREAD_ADD32(&endpoint->rd_credits_lp, -frag->hdr->credits);
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qp_hndl = endpoint->lcl_qp_hndl_lp;
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}
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}
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frag->sr_desc.opcode = VAPI_SEND;
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frag->sr_desc.remote_qkey = 0;
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frag->sg_entry.addr = (VAPI_virt_addr_t) (MT_virt_addr_t) frag->hdr;
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frag->sg_entry.len = frag->segment.seg_len + sizeof(mca_btl_mvapi_header_t);
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if(frag->sg_entry.len <= mvapi_btl->ib_inline_max) {
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ret = EVAPI_post_inline_sr(mvapi_btl->nic, qp_hndl, &frag->sr_desc);
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} else {
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ret = VAPI_post_sr(mvapi_btl->nic, qp_hndl, &frag->sr_desc);
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}
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if(VAPI_OK != ret) {
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BTL_ERROR(("VAPI_post_sr: %s\n", VAPI_strerror(ret)));
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return OMPI_ERROR;
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}
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#ifdef VAPI_FEATURE_SRQ
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if(mca_btl_mvapi_component.use_srq) {
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MCA_BTL_MVAPI_POST_SRR_HIGH(mvapi_btl, 1);
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MCA_BTL_MVAPI_POST_SRR_LOW(mvapi_btl, 1);
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} else
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#endif
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{
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MCA_BTL_MVAPI_ENDPOINT_POST_RR_HIGH(endpoint, 1);
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MCA_BTL_MVAPI_ENDPOINT_POST_RR_LOW(endpoint, 1);
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}
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return OMPI_SUCCESS;
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}
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OBJ_CLASS_INSTANCE(mca_btl_mvapi_endpoint_t,
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opal_list_item_t, mca_btl_mvapi_endpoint_construct,
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mca_btl_mvapi_endpoint_destruct);
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/*
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* Initialize state of the endpoint instance.
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*
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*/
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static void mca_btl_mvapi_endpoint_construct(mca_btl_base_endpoint_t* endpoint)
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{
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endpoint->endpoint_btl = 0;
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endpoint->endpoint_proc = 0;
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endpoint->endpoint_tstamp = 0.0;
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endpoint->endpoint_state = MCA_BTL_IB_CLOSED;
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endpoint->endpoint_retries = 0;
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OBJ_CONSTRUCT(&endpoint->endpoint_lock, opal_mutex_t);
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OBJ_CONSTRUCT(&endpoint->pending_send_frags, opal_list_t);
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OBJ_CONSTRUCT(&endpoint->pending_frags_hp, opal_list_t);
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OBJ_CONSTRUCT(&endpoint->pending_frags_lp, opal_list_t);
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endpoint->rd_posted_hp = 0;
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endpoint->rd_posted_lp = 0;
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/* number of available send wqes */
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endpoint->sd_wqe_hp = mca_btl_mvapi_component.rd_num;
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endpoint->sd_wqe_lp = mca_btl_mvapi_component.rd_num;
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/* zero these out w/ initial posting, so that we start out w/
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* zero credits to return to peer
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*/
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endpoint->rd_credits_hp = -(mca_btl_mvapi_component.rd_num + mca_btl_mvapi_component.rd_rsv);
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endpoint->rd_credits_lp = -(mca_btl_mvapi_component.rd_num + mca_btl_mvapi_component.rd_rsv);
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endpoint->sd_credits_hp = 0;
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endpoint->sd_credits_lp = 0;
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/* initialize the high and low priority tokens */
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endpoint->sd_tokens_hp = mca_btl_mvapi_component.rd_num;
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endpoint->sd_tokens_lp = mca_btl_mvapi_component.rd_num;
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endpoint->get_tokens = mca_btl_mvapi_component.ib_qp_ous_rd_atom;
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endpoint->rem_info.rem_qp_num_hp = 0;
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endpoint->rem_info.rem_qp_num_lp = 0;
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endpoint->rem_info.rem_lid = 0;
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endpoint->rem_info.rem_subnet = 0;
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}
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/*
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* Destroy a endpoint
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*
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*/
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static void mca_btl_mvapi_endpoint_destruct(mca_btl_base_endpoint_t* endpoint)
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{
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OBJ_DESTRUCT(&endpoint->endpoint_lock);
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OBJ_DESTRUCT(&endpoint->pending_send_frags);
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OBJ_DESTRUCT(&endpoint->pending_frags_hp);
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OBJ_DESTRUCT(&endpoint->pending_frags_lp);
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}
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/*
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* Send connection information to remote endpoint using OOB
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*
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*/
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static void mca_btl_mvapi_endpoint_send_cb(
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int status,
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orte_process_name_t* endpoint,
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orte_buffer_t* buffer,
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orte_rml_tag_t tag,
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void* cbdata)
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{
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OBJ_RELEASE(buffer);
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}
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static int mca_btl_mvapi_endpoint_send_connect_data(mca_btl_base_endpoint_t* endpoint)
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{
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orte_buffer_t* buffer = OBJ_NEW(orte_buffer_t);
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int rc;
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if(NULL == buffer) {
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ORTE_ERROR_LOG(ORTE_ERR_OUT_OF_RESOURCE);
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return ORTE_ERR_OUT_OF_RESOURCE;
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}
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/* pack the info in the send buffer */
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rc = orte_dps.pack(buffer, &endpoint->lcl_qp_prop_hp.qp_num, 1, ORTE_UINT32);
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if(rc != ORTE_SUCCESS) {
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ORTE_ERROR_LOG(rc);
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return rc;
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}
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rc = orte_dps.pack(buffer, &endpoint->lcl_qp_prop_lp.qp_num, 1, ORTE_UINT32);
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if(rc != ORTE_SUCCESS) {
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ORTE_ERROR_LOG(rc);
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return rc;
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}
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rc = orte_dps.pack(buffer, &endpoint->endpoint_btl->port.lid, 1, ORTE_UINT32);
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if(rc != ORTE_SUCCESS) {
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ORTE_ERROR_LOG(rc);
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return rc;
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}
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rc = orte_dps.pack(buffer, &((mca_btl_mvapi_endpoint_t*)endpoint)->subnet, 1, ORTE_UINT32);
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if(rc != ORTE_SUCCESS) {
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ORTE_ERROR_LOG(rc);
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return rc;
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}
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/* send to endpoint */
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rc = orte_rml.send_buffer_nb(&endpoint->endpoint_proc->proc_guid, buffer, ORTE_RML_TAG_DYNAMIC-1, 0,
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mca_btl_mvapi_endpoint_send_cb, NULL);
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BTL_VERBOSE(("Sending High Priority QP num = %d, Low Priority QP num = %d, LID = %d",
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endpoint->lcl_qp_prop_hp.qp_num,
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endpoint->lcl_qp_prop_lp.qp_num,
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endpoint->endpoint_btl->port.lid));
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if(rc < 0) {
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ORTE_ERROR_LOG(rc);
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return rc;
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}
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return OMPI_SUCCESS;
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}
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/*
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* Set remote connection info
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*
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* XXX: Currently size is unutilized, this shall change
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* as soon as we add more info to be exchanged at connection
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* setup.
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*
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*/
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static int mca_btl_mvapi_endpoint_set_remote_info(mca_btl_base_endpoint_t* endpoint, mca_btl_mvapi_rem_info_t* rem_info)
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{
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memcpy(&((mca_btl_mvapi_endpoint_t*) endpoint)->rem_info, rem_info, sizeof(mca_btl_mvapi_rem_info_t));
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BTL_VERBOSE(("Setting High Priority QP num = %d, Low Priority QP num %d, LID = %d",
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endpoint->rem_info.rem_qp_num_hp,
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endpoint->rem_info.rem_qp_num_lp,
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endpoint->rem_info.rem_lid));
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return ORTE_SUCCESS;
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}
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/*
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* Start to connect to the endpoint. We send our Queue Pair
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* information over the TCP OOB communication mechanism.
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* On completion of our send, a send completion handler
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* is called.
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*
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*/
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static int mca_btl_mvapi_endpoint_start_connect(mca_btl_base_endpoint_t* endpoint)
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{
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int rc;
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/* Create the High Priority Queue Pair */
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if(OMPI_SUCCESS != (rc = mca_btl_mvapi_endpoint_create_qp(endpoint->endpoint_btl,
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endpoint->endpoint_btl->nic,
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endpoint->endpoint_btl->ptag,
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endpoint->endpoint_btl->cq_hndl_hp,
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#ifdef VAPI_FEATURE_SRQ
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endpoint->endpoint_btl->srq_hndl_hp,
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#endif
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&endpoint->lcl_qp_hndl_hp,
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&endpoint->lcl_qp_prop_hp,
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VAPI_TS_RC))) {
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BTL_ERROR(("error creating queue pair, error code %d", rc));
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return rc;
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}
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/* Create the Low Priority Queue Pair */
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if(OMPI_SUCCESS != (rc = mca_btl_mvapi_endpoint_create_qp(endpoint->endpoint_btl,
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endpoint->endpoint_btl->nic,
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endpoint->endpoint_btl->ptag,
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endpoint->endpoint_btl->cq_hndl_lp,
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#ifdef VAPI_FEATURE_SRQ
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endpoint->endpoint_btl->srq_hndl_lp,
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#endif
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&endpoint->lcl_qp_hndl_lp,
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&endpoint->lcl_qp_prop_lp,
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VAPI_TS_RC))) {
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BTL_ERROR(("error creating queue pair, error code %d", rc));
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return rc;
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}
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BTL_VERBOSE(("Initialized High Priority QP num = %d, Low Priority QP num = %d, LID = %d",
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endpoint->lcl_qp_prop_hp.qp_num,
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endpoint->lcl_qp_prop_lp.qp_num,
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endpoint->endpoint_btl->port.lid));
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/* Send connection info over to remote endpoint */
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endpoint->endpoint_state = MCA_BTL_IB_CONNECTING;
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if(OMPI_SUCCESS != (rc = mca_btl_mvapi_endpoint_send_connect_data(endpoint))) {
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BTL_ERROR(("error sending connect request, error code %d", rc));
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return rc;
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}
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return OMPI_SUCCESS;
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}
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/*
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* Reply to a `start - connect' message
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*
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*/
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static int mca_btl_mvapi_endpoint_reply_start_connect(mca_btl_mvapi_endpoint_t *endpoint,
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mca_btl_mvapi_rem_info_t* rem_info)
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{
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int rc;
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/* Create the High Priority Queue Pair */
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if(OMPI_SUCCESS != (rc = mca_btl_mvapi_endpoint_create_qp(endpoint->endpoint_btl,
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endpoint->endpoint_btl->nic,
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endpoint->endpoint_btl->ptag,
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endpoint->endpoint_btl->cq_hndl_hp,
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#ifdef VAPI_FEATURE_SRQ
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endpoint->endpoint_btl->srq_hndl_hp,
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#endif
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&endpoint->lcl_qp_hndl_hp,
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&endpoint->lcl_qp_prop_hp,
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VAPI_TS_RC))) {
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BTL_ERROR(("error creating queue pair, error code %d", rc));
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return rc;
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}
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/* Create the Low Priority Queue Pair */
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if(OMPI_SUCCESS != (rc = mca_btl_mvapi_endpoint_create_qp(endpoint->endpoint_btl,
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endpoint->endpoint_btl->nic,
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endpoint->endpoint_btl->ptag,
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endpoint->endpoint_btl->cq_hndl_lp,
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#ifdef VAPI_FEATURE_SRQ
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endpoint->endpoint_btl->srq_hndl_lp,
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#endif
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&endpoint->lcl_qp_hndl_lp,
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&endpoint->lcl_qp_prop_lp,
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VAPI_TS_RC))) {
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BTL_ERROR(("error creating queue pair, error code %d", rc));
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return rc;
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}
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BTL_VERBOSE(("Initialized High Priority QP num = %d, Low Priority QP num = %d, LID = %d",
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endpoint->lcl_qp_prop_hp.qp_num,
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endpoint->lcl_qp_prop_lp.qp_num,
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endpoint->endpoint_btl->port.lid));
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/* Set the remote side info */
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mca_btl_mvapi_endpoint_set_remote_info(endpoint, rem_info);
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/* Connect to endpoint */
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rc = mca_btl_mvapi_endpoint_connect(endpoint);
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if(rc != OMPI_SUCCESS) {
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BTL_ERROR(("error in endpoint connect error code is %d", rc));
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return rc;
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}
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/* Send connection info over to remote endpoint */
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endpoint->endpoint_state = MCA_BTL_IB_CONNECT_ACK;
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if(OMPI_SUCCESS != (rc = mca_btl_mvapi_endpoint_send_connect_data(endpoint))) {
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BTL_ERROR(("error in endpoint send connect request error code is %d", rc));
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return rc;
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}
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return OMPI_SUCCESS;
|
|
}
|
|
|
|
static void mca_btl_mvapi_endpoint_waiting_ack(mca_btl_mvapi_endpoint_t *endpoint) {
|
|
endpoint->endpoint_state = MCA_BTL_IB_WAITING_ACK;
|
|
}
|
|
|
|
/*
|
|
*
|
|
*/
|
|
|
|
static void mca_btl_mvapi_endpoint_connected(mca_btl_mvapi_endpoint_t *endpoint)
|
|
{
|
|
opal_list_item_t *frag_item;
|
|
mca_btl_mvapi_frag_t *frag;
|
|
mca_btl_mvapi_module_t* mvapi_btl;
|
|
|
|
/* While there are frags in the list, process them */
|
|
endpoint->endpoint_state = MCA_BTL_IB_CONNECTED;
|
|
while(!opal_list_is_empty(&(endpoint->pending_send_frags))) {
|
|
frag_item = opal_list_remove_first(&(endpoint->pending_send_frags));
|
|
frag = (mca_btl_mvapi_frag_t *) frag_item;
|
|
mvapi_btl = endpoint->endpoint_btl;
|
|
/* We need to post this one */
|
|
|
|
if(OMPI_SUCCESS != mca_btl_mvapi_endpoint_post_send(mvapi_btl, endpoint, frag))
|
|
BTL_ERROR(("error in mca_btl_mvapi_endpoint_send"));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Non blocking OOB recv callback.
|
|
* Read incoming QP and other info, and if this endpoint
|
|
* is trying to connect, reply with our QP info,
|
|
* otherwise try to modify QP's and establish
|
|
* reliable connection
|
|
*
|
|
*/
|
|
|
|
static void mca_btl_mvapi_endpoint_recv(
|
|
int status,
|
|
orte_process_name_t* endpoint,
|
|
orte_buffer_t* buffer,
|
|
orte_rml_tag_t tag,
|
|
void* cbdata)
|
|
{
|
|
mca_btl_mvapi_proc_t *ib_proc;
|
|
mca_btl_mvapi_endpoint_t *ib_endpoint = NULL;
|
|
int endpoint_state;
|
|
int rc;
|
|
uint32_t i;
|
|
size_t cnt = 1;
|
|
mca_btl_mvapi_rem_info_t rem_info;
|
|
|
|
|
|
/* start by unpacking data first so we know who is knocking at
|
|
our door */
|
|
|
|
rc = orte_dps.unpack(buffer, &rem_info.rem_qp_num_hp, &cnt, ORTE_UINT32);
|
|
if(ORTE_SUCCESS != rc) {
|
|
ORTE_ERROR_LOG(rc);
|
|
return;
|
|
}
|
|
rc = orte_dps.unpack(buffer, &rem_info.rem_qp_num_lp, &cnt, ORTE_UINT32);
|
|
if(ORTE_SUCCESS != rc) {
|
|
ORTE_ERROR_LOG(rc);
|
|
return;
|
|
}
|
|
rc = orte_dps.unpack(buffer, &rem_info.rem_lid, &cnt, ORTE_UINT32);
|
|
if(ORTE_SUCCESS != rc) {
|
|
ORTE_ERROR_LOG(rc);
|
|
return;
|
|
}
|
|
rc = orte_dps.unpack(buffer, &rem_info.rem_subnet, &cnt, ORTE_UINT32);
|
|
if(ORTE_SUCCESS != rc) {
|
|
ORTE_ERROR_LOG(rc);
|
|
return;
|
|
}
|
|
|
|
BTL_VERBOSE(("Received High Priority QP num = %d, Low Priority QP num %d, LID = %d",
|
|
rem_info.rem_qp_num_hp,
|
|
rem_info.rem_qp_num_lp,
|
|
rem_info.rem_lid));
|
|
|
|
for(ib_proc = (mca_btl_mvapi_proc_t*)
|
|
opal_list_get_first(&mca_btl_mvapi_component.ib_procs);
|
|
ib_proc != (mca_btl_mvapi_proc_t*)
|
|
opal_list_get_end(&mca_btl_mvapi_component.ib_procs);
|
|
ib_proc = (mca_btl_mvapi_proc_t*)opal_list_get_next(ib_proc)) {
|
|
|
|
if(orte_ns.compare(ORTE_NS_CMP_ALL, &ib_proc->proc_guid, endpoint) == 0) {
|
|
bool found = false;
|
|
|
|
/* Try to get the endpoint instance of this proc */
|
|
/* first match the endpoint based on lid meaning we've seen */
|
|
/* this endpoint before.. */
|
|
for(i = 0; i < ib_proc->proc_endpoint_count; i++) {
|
|
mca_btl_mvapi_port_info_t port_info;
|
|
port_info = ib_proc->proc_ports[i];
|
|
ib_endpoint = ib_proc->proc_endpoints[i];
|
|
if(ib_endpoint->rem_info.rem_lid &&
|
|
ib_endpoint->rem_info.rem_lid == rem_info.rem_lid) {
|
|
/* we've seen them before! */
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
/* If we haven't seen this remote lid before then try to match on
|
|
endpoint */
|
|
for(i = 0; !found && i < ib_proc->proc_endpoint_count; i++) {
|
|
mca_btl_mvapi_port_info_t port_info;
|
|
port_info = ib_proc->proc_ports[i];
|
|
ib_endpoint = ib_proc->proc_endpoints[i];
|
|
if(!ib_endpoint->rem_info.rem_lid &&
|
|
ib_endpoint->subnet == rem_info.rem_subnet) {
|
|
/* found a match based on subnet! */
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
/* try finding an open port, even if subnets
|
|
don't match
|
|
*/
|
|
for(i = 0; !found && i < ib_proc->proc_endpoint_count; i++) {
|
|
mca_btl_mvapi_port_info_t port_info;
|
|
port_info = ib_proc->proc_ports[i];
|
|
ib_endpoint = ib_proc->proc_endpoints[i];
|
|
if(!ib_endpoint->rem_info.rem_lid) {
|
|
/* found an unused end-point */
|
|
found = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(!found) {
|
|
BTL_ERROR(("can't find suitable endpoint for this peer\n"));
|
|
return;
|
|
}
|
|
|
|
OPAL_THREAD_LOCK(&ib_endpoint->endpoint_lock);
|
|
endpoint_state = ib_endpoint->endpoint_state;
|
|
|
|
/* Update status */
|
|
switch(endpoint_state) {
|
|
case MCA_BTL_IB_CLOSED :
|
|
/* We had this connection closed before.
|
|
* The endpoint is trying to connect. Move the
|
|
* status of this connection to CONNECTING,
|
|
* and then reply with our QP information */
|
|
|
|
if(OMPI_SUCCESS != (rc = mca_btl_mvapi_endpoint_reply_start_connect(ib_endpoint, &rem_info))) {
|
|
BTL_ERROR(("error in endpoint reply start connect"));
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case MCA_BTL_IB_CONNECTING :
|
|
|
|
mca_btl_mvapi_endpoint_set_remote_info(ib_endpoint, &rem_info);
|
|
if(OMPI_SUCCESS != (rc = mca_btl_mvapi_endpoint_connect(ib_endpoint))) {
|
|
BTL_ERROR(("endpoint connect error: %d", rc));
|
|
break;
|
|
}
|
|
|
|
/* Setup state as awaiting ack from peer */
|
|
mca_btl_mvapi_endpoint_waiting_ack(ib_endpoint);
|
|
|
|
/* Send him an ack */
|
|
mca_btl_mvapi_endpoint_send_connect_data(ib_endpoint);
|
|
break;
|
|
|
|
case MCA_BTL_IB_WAITING_ACK:
|
|
mca_btl_mvapi_endpoint_connected(ib_endpoint);
|
|
break;
|
|
|
|
case MCA_BTL_IB_CONNECT_ACK:
|
|
|
|
mca_btl_mvapi_endpoint_send_connect_data(ib_endpoint);
|
|
mca_btl_mvapi_endpoint_connected(ib_endpoint);
|
|
break;
|
|
|
|
case MCA_BTL_IB_CONNECTED :
|
|
break;
|
|
default :
|
|
BTL_ERROR(("Invalid endpoint state %d", endpoint_state));
|
|
}
|
|
|
|
OPAL_THREAD_UNLOCK(&ib_endpoint->endpoint_lock);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void mca_btl_mvapi_post_recv()
|
|
{
|
|
orte_rml.recv_buffer_nb(
|
|
ORTE_RML_NAME_ANY,
|
|
ORTE_RML_TAG_DYNAMIC-1,
|
|
ORTE_RML_PERSISTENT,
|
|
mca_btl_mvapi_endpoint_recv,
|
|
NULL);
|
|
}
|
|
|
|
|
|
/*
|
|
* Attempt to send a fragment using a given endpoint. If the endpoint is not
|
|
* connected, queue the fragment and start the connection as required.
|
|
*/
|
|
|
|
int mca_btl_mvapi_endpoint_send(
|
|
mca_btl_base_endpoint_t* endpoint,
|
|
mca_btl_mvapi_frag_t* frag
|
|
)
|
|
{
|
|
int rc;
|
|
mca_btl_mvapi_module_t *mvapi_btl;
|
|
|
|
OPAL_THREAD_LOCK(&endpoint->endpoint_lock);
|
|
switch(endpoint->endpoint_state) {
|
|
case MCA_BTL_IB_CONNECTING:
|
|
|
|
BTL_VERBOSE(("Queing because state is connecting"));
|
|
|
|
opal_list_append(&endpoint->pending_send_frags,
|
|
(opal_list_item_t *)frag);
|
|
|
|
rc = OMPI_SUCCESS;
|
|
break;
|
|
|
|
case MCA_BTL_IB_WAITING_ACK:
|
|
case MCA_BTL_IB_CONNECT_ACK:
|
|
|
|
BTL_VERBOSE(("Queuing because waiting for ack"));
|
|
|
|
opal_list_append(&endpoint->pending_send_frags,
|
|
(opal_list_item_t *)frag);
|
|
|
|
rc = OMPI_SUCCESS;
|
|
break;
|
|
|
|
case MCA_BTL_IB_CLOSED:
|
|
|
|
BTL_VERBOSE(("Connection to endpoint closed ... connecting ..."));
|
|
|
|
opal_list_append(&endpoint->pending_send_frags,
|
|
(opal_list_item_t *)frag);
|
|
|
|
rc = mca_btl_mvapi_endpoint_start_connect(endpoint);
|
|
|
|
break;
|
|
|
|
case MCA_BTL_IB_FAILED:
|
|
|
|
rc = OMPI_ERR_UNREACH;
|
|
break;
|
|
|
|
case MCA_BTL_IB_CONNECTED:
|
|
{
|
|
mvapi_btl = endpoint->endpoint_btl;
|
|
BTL_VERBOSE(("Send to : %d, len : %d, frag : %p",
|
|
endpoint->endpoint_proc->proc_guid.vpid,
|
|
frag->sg_entry.len,
|
|
frag));
|
|
rc = mca_btl_mvapi_endpoint_post_send(mvapi_btl, endpoint, frag);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
rc = OMPI_ERR_UNREACH;
|
|
}
|
|
|
|
OPAL_THREAD_UNLOCK(&endpoint->endpoint_lock);
|
|
return rc;
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
* Complete connection to endpoint.
|
|
*/
|
|
|
|
int mca_btl_mvapi_endpoint_connect(
|
|
mca_btl_mvapi_endpoint_t *endpoint)
|
|
{
|
|
int rc;
|
|
/* Connection establishment RC */
|
|
rc = mca_btl_mvapi_endpoint_qp_init_query(endpoint->endpoint_btl,
|
|
endpoint->endpoint_btl->nic,
|
|
endpoint->lcl_qp_hndl_hp,
|
|
endpoint->rem_info.rem_qp_num_hp,
|
|
endpoint->rem_info.rem_lid,
|
|
endpoint->endpoint_btl->port_id);
|
|
|
|
rc = mca_btl_mvapi_endpoint_qp_init_query(endpoint->endpoint_btl,
|
|
endpoint->endpoint_btl->nic,
|
|
endpoint->lcl_qp_hndl_lp,
|
|
endpoint->rem_info.rem_qp_num_lp,
|
|
endpoint->rem_info.rem_lid,
|
|
endpoint->endpoint_btl->port_id);
|
|
|
|
|
|
|
|
if(rc != OMPI_SUCCESS) {
|
|
return rc;
|
|
}
|
|
|
|
#ifdef VAPI_FEATURE_SRQ
|
|
if(mca_btl_mvapi_component.use_srq) {
|
|
MCA_BTL_MVAPI_POST_SRR_HIGH(endpoint->endpoint_btl, 0);
|
|
MCA_BTL_MVAPI_POST_SRR_LOW(endpoint->endpoint_btl, 0);
|
|
} else
|
|
#endif
|
|
{
|
|
MCA_BTL_MVAPI_ENDPOINT_POST_RR_HIGH(endpoint, 0);
|
|
MCA_BTL_MVAPI_ENDPOINT_POST_RR_LOW(endpoint, 0);
|
|
}
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* Create the queue pair note that this is just the initial
|
|
* queue pair creation and we need to get the remote queue pair
|
|
* info from the peer before the qp is usable,
|
|
*/
|
|
|
|
int mca_btl_mvapi_endpoint_create_qp(
|
|
mca_btl_mvapi_module_t* mvapi_btl,
|
|
VAPI_hca_hndl_t nic,
|
|
VAPI_pd_hndl_t ptag,
|
|
VAPI_cq_hndl_t cq_hndl,
|
|
#ifdef VAPI_FEATURE_SRQ
|
|
VAPI_srq_hndl_t srq_hndl,
|
|
#endif
|
|
VAPI_qp_hndl_t* qp_hndl,
|
|
VAPI_qp_prop_t* qp_prop,
|
|
int transport_type)
|
|
{
|
|
|
|
VAPI_ret_t ret;
|
|
VAPI_qp_init_attr_t qp_init_attr;
|
|
#ifdef VAPI_FEATURE_SRQ
|
|
VAPI_qp_init_attr_ext_t qp_init_attr_ext;
|
|
#endif
|
|
|
|
/* worst case number of credit messages could be queued */
|
|
switch(transport_type) {
|
|
|
|
case VAPI_TS_RC: /* Set up RC qp parameters */
|
|
qp_init_attr.cap.max_oust_wr_sq = mca_btl_mvapi_component.rd_num + 1;
|
|
qp_init_attr.cap.max_oust_wr_rq = mca_btl_mvapi_component.rd_num + mca_btl_mvapi_component.rd_rsv;
|
|
qp_init_attr.cap.max_sg_size_sq = mca_btl_mvapi_component.ib_sg_list_size;
|
|
qp_init_attr.cap.max_sg_size_rq = mca_btl_mvapi_component.ib_sg_list_size;
|
|
qp_init_attr.pd_hndl = ptag;
|
|
/* We don't have Reliable Datagram Handle right now */
|
|
qp_init_attr.rdd_hndl = 0;
|
|
|
|
/* Signal all work requests on this queue pair */
|
|
qp_init_attr.rq_sig_type = VAPI_SIGNAL_REQ_WR;
|
|
qp_init_attr.sq_sig_type = VAPI_SIGNAL_REQ_WR;
|
|
|
|
/* Use Reliable Connected transport service */
|
|
qp_init_attr.ts_type = VAPI_TS_RC;
|
|
|
|
|
|
|
|
/* Set Send and Recv completion queues */
|
|
qp_init_attr.rq_cq_hndl = cq_hndl;
|
|
qp_init_attr.sq_cq_hndl = cq_hndl;
|
|
|
|
break;
|
|
case VAPI_TS_UD: /* Set up UD qp parameters */
|
|
default:
|
|
return OMPI_ERR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
#ifdef VAPI_FEATURE_SRQ
|
|
if(mca_btl_mvapi_component.use_srq) {
|
|
qp_init_attr_ext.srq_hndl = srq_hndl;
|
|
|
|
ret = VAPI_create_qp_ext(nic,
|
|
&qp_init_attr,
|
|
&qp_init_attr_ext,
|
|
qp_hndl,
|
|
qp_prop);
|
|
} else
|
|
#endif
|
|
{
|
|
ret = VAPI_create_qp(nic,
|
|
&qp_init_attr,
|
|
qp_hndl,
|
|
qp_prop);
|
|
}
|
|
if(VAPI_OK != ret) {
|
|
BTL_ERROR(("error creating the queue pair: %s", VAPI_strerror(ret)));
|
|
return OMPI_ERROR;
|
|
}
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
/*
|
|
* The queue pair has been created and we have received the remote
|
|
* queue pair information from the peer so we init this queue pair
|
|
* and are ready to roll.
|
|
*/
|
|
int mca_btl_mvapi_endpoint_qp_init_query(
|
|
|
|
mca_btl_mvapi_module_t* mvapi_btl,
|
|
VAPI_hca_hndl_t nic,
|
|
VAPI_qp_hndl_t qp_hndl,
|
|
VAPI_qp_num_t remote_qp_num,
|
|
IB_lid_t remote_lid,
|
|
IB_port_t port_id
|
|
)
|
|
|
|
|
|
{
|
|
|
|
VAPI_ret_t ret;
|
|
VAPI_qp_attr_t qp_attr;
|
|
|
|
VAPI_qp_attr_mask_t qp_attr_mask;
|
|
VAPI_qp_init_attr_t qp_init_attr;
|
|
VAPI_qp_cap_t qp_cap;
|
|
|
|
/* Modifying QP to INIT */
|
|
QP_ATTR_MASK_CLR_ALL(qp_attr_mask);
|
|
qp_attr.qp_state = VAPI_INIT;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_QP_STATE);
|
|
qp_attr.pkey_ix = mca_btl_mvapi_component.ib_pkey_ix;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_PKEY_IX);
|
|
qp_attr.port = port_id;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_PORT);
|
|
qp_attr.remote_atomic_flags = VAPI_EN_REM_WRITE | VAPI_EN_REM_READ;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_REMOTE_ATOMIC_FLAGS);
|
|
|
|
ret = VAPI_modify_qp(nic, qp_hndl,
|
|
&qp_attr, &qp_attr_mask, &qp_cap);
|
|
|
|
if(VAPI_OK != ret) {
|
|
BTL_ERROR(("Error modifying the queue pair: %s", VAPI_strerror(ret)));
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
BTL_VERBOSE(("Modified to init..Qp %d", qp_hndl));
|
|
|
|
/********************** INIT --> RTR ************************/
|
|
QP_ATTR_MASK_CLR_ALL(qp_attr_mask);
|
|
qp_attr.qp_state = VAPI_RTR;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_QP_STATE);
|
|
qp_attr.qp_ous_rd_atom = mca_btl_mvapi_component.ib_qp_ous_rd_atom;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_QP_OUS_RD_ATOM);
|
|
qp_attr.path_mtu = mca_btl_mvapi_component.ib_mtu;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_PATH_MTU);
|
|
qp_attr.rq_psn = mca_btl_mvapi_component.ib_psn;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_RQ_PSN);
|
|
qp_attr.pkey_ix = mca_btl_mvapi_component.ib_pkey_ix;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_PKEY_IX);
|
|
qp_attr.min_rnr_timer = mca_btl_mvapi_component.ib_min_rnr_timer;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_MIN_RNR_TIMER);
|
|
|
|
qp_attr.av.sl = mca_btl_mvapi_component.ib_service_level;
|
|
qp_attr.av.grh_flag = FALSE;
|
|
qp_attr.av.static_rate = mca_btl_mvapi_component.ib_static_rate;
|
|
qp_attr.av.src_path_bits = mca_btl_mvapi_component.ib_src_path_bits;
|
|
|
|
qp_attr.dest_qp_num = remote_qp_num;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_DEST_QP_NUM);
|
|
qp_attr.av.dlid = remote_lid;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_AV);
|
|
|
|
ret = VAPI_modify_qp(nic, qp_hndl,
|
|
&qp_attr, &qp_attr_mask, &qp_cap);
|
|
|
|
if(VAPI_OK != ret) {
|
|
BTL_ERROR(("Error modifying the queue pair: %s", VAPI_strerror(ret)));
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
BTL_VERBOSE(("Modified to RTR..Qp %d", qp_hndl));
|
|
|
|
/************** RTS *******************/
|
|
QP_ATTR_MASK_CLR_ALL(qp_attr_mask);
|
|
qp_attr.qp_state = VAPI_RTS;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_QP_STATE);
|
|
qp_attr.sq_psn = mca_btl_mvapi_component.ib_psn;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_SQ_PSN);
|
|
qp_attr.timeout = mca_btl_mvapi_component.ib_timeout;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_TIMEOUT);
|
|
qp_attr.retry_count = mca_btl_mvapi_component.ib_retry_count;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_RETRY_COUNT);
|
|
qp_attr.rnr_retry = mca_btl_mvapi_component.ib_rnr_retry;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_RNR_RETRY);
|
|
qp_attr.ous_dst_rd_atom = mca_btl_mvapi_component.ib_max_rdma_dst_ops;
|
|
QP_ATTR_MASK_SET(qp_attr_mask, QP_ATTR_OUS_DST_RD_ATOM);
|
|
|
|
ret = VAPI_modify_qp(nic, qp_hndl,
|
|
&qp_attr, &qp_attr_mask, &qp_cap);
|
|
|
|
if(VAPI_OK != ret) {
|
|
return OMPI_ERROR;
|
|
}
|
|
BTL_VERBOSE(("Modified to RTS..Qp %d", qp_hndl));
|
|
|
|
ret = VAPI_query_qp(nic, qp_hndl, &qp_attr, &qp_attr_mask, &qp_init_attr );
|
|
if (ret != VAPI_OK) {
|
|
BTL_ERROR(("Error modifying the queue pair: %s", VAPI_strerror(ret)));
|
|
return OMPI_ERROR;
|
|
}
|
|
|
|
mvapi_btl->ib_inline_max = qp_init_attr.cap.max_inline_data_sq;
|
|
|
|
return OMPI_SUCCESS;
|
|
}
|
|
|
|
|
|
/**
|
|
* Return control fragment.
|
|
*/
|
|
|
|
static void mca_btl_mvapi_endpoint_credits_lp(
|
|
mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
struct mca_btl_base_descriptor_t* descriptor,
|
|
int status)
|
|
{
|
|
int32_t credits;
|
|
|
|
/* we don't acquire a wqe or token for credit message - so decrement */
|
|
OPAL_THREAD_ADD32(&endpoint->sd_wqe_lp,-1);
|
|
|
|
/* check to see if there are addditional credits to return */
|
|
if ((credits = OPAL_THREAD_ADD32(&endpoint->sd_credits_lp,-1)) > 0) {
|
|
OPAL_THREAD_ADD32(&endpoint->sd_credits_lp,-credits);
|
|
if (endpoint->rd_credits_lp >= mca_btl_mvapi_component.rd_win &&
|
|
OPAL_THREAD_ADD32(&endpoint->sd_credits_lp,1) == 1) {
|
|
mca_btl_mvapi_endpoint_send_credits_lp(endpoint);
|
|
}
|
|
}
|
|
MCA_BTL_IB_FRAG_RETURN_EAGER((mca_btl_mvapi_module_t*)btl, (mca_btl_mvapi_frag_t*)descriptor);
|
|
}
|
|
|
|
/**
|
|
* Return credits to peer
|
|
*/
|
|
|
|
void mca_btl_mvapi_endpoint_send_credits_lp(
|
|
mca_btl_mvapi_endpoint_t* endpoint)
|
|
{
|
|
mca_btl_mvapi_module_t* mvapi_btl = endpoint->endpoint_btl;
|
|
mca_btl_mvapi_frag_t* frag;
|
|
int ret;
|
|
|
|
MCA_BTL_IB_FRAG_ALLOC_EAGER(mvapi_btl, frag, ret);
|
|
if(NULL == frag) {
|
|
BTL_ERROR(("error allocating fragment"));
|
|
return;
|
|
}
|
|
|
|
frag->base.des_cbfunc = mca_btl_mvapi_endpoint_credits_lp;
|
|
frag->base.des_cbdata = NULL;
|
|
frag->endpoint = endpoint;
|
|
|
|
frag->hdr->tag = MCA_BTL_TAG_BTL;
|
|
frag->hdr->credits = endpoint->rd_credits_lp;
|
|
OPAL_THREAD_ADD32(&endpoint->rd_credits_lp, -frag->hdr->credits);
|
|
|
|
frag->sr_desc.opcode = VAPI_SEND;
|
|
frag->sg_entry.addr = (VAPI_virt_addr_t) (MT_virt_addr_t) frag->hdr;
|
|
frag->sg_entry.len = sizeof(mca_btl_mvapi_header_t);
|
|
|
|
if(sizeof(mca_btl_mvapi_header_t) <= mvapi_btl->ib_inline_max) {
|
|
ret = EVAPI_post_inline_sr(mvapi_btl->nic, endpoint->lcl_qp_hndl_lp, &frag->sr_desc);
|
|
} else {
|
|
ret = VAPI_post_sr(mvapi_btl->nic, endpoint->lcl_qp_hndl_lp, &frag->sr_desc);
|
|
}
|
|
if(ret != VAPI_SUCCESS) {
|
|
OPAL_THREAD_ADD32(&endpoint->sd_credits_lp, -1);
|
|
OPAL_THREAD_ADD32(&endpoint->rd_credits_lp, frag->hdr->credits);
|
|
MCA_BTL_IB_FRAG_RETURN_EAGER(mvapi_btl, frag);
|
|
BTL_ERROR(("error posting send request errno %d says %s", strerror(errno)));
|
|
return;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Return control fragment.
|
|
*/
|
|
|
|
static void mca_btl_mvapi_endpoint_credits_hp(
|
|
mca_btl_base_module_t* btl,
|
|
struct mca_btl_base_endpoint_t* endpoint,
|
|
struct mca_btl_base_descriptor_t* descriptor,
|
|
int status)
|
|
{
|
|
int32_t credits;
|
|
|
|
/* we don't acquire a wqe or token for credit message - so decrement */
|
|
OPAL_THREAD_ADD32(&endpoint->sd_wqe_hp,-1);
|
|
|
|
/* check to see if there are addditional credits to return */
|
|
if ((credits = OPAL_THREAD_ADD32(&endpoint->sd_credits_hp,-1)) > 0) {
|
|
OPAL_THREAD_ADD32(&endpoint->sd_credits_hp,-credits);
|
|
if (endpoint->rd_credits_hp >= mca_btl_mvapi_component.rd_win &&
|
|
OPAL_THREAD_ADD32(&endpoint->sd_credits_hp,1) == 1) {
|
|
mca_btl_mvapi_endpoint_send_credits_hp(endpoint);
|
|
}
|
|
}
|
|
MCA_BTL_IB_FRAG_RETURN_EAGER((mca_btl_mvapi_module_t*)btl, (mca_btl_mvapi_frag_t*)descriptor);
|
|
}
|
|
|
|
/**
|
|
* Return credits to peer
|
|
*/
|
|
|
|
void mca_btl_mvapi_endpoint_send_credits_hp(
|
|
mca_btl_mvapi_endpoint_t* endpoint)
|
|
{
|
|
mca_btl_mvapi_module_t* mvapi_btl = endpoint->endpoint_btl;
|
|
mca_btl_mvapi_frag_t* frag;
|
|
int ret;
|
|
|
|
MCA_BTL_IB_FRAG_ALLOC_EAGER(mvapi_btl, frag, ret);
|
|
if(NULL == frag) {
|
|
BTL_ERROR(("error allocating fragment"));
|
|
return;
|
|
}
|
|
|
|
frag->base.des_cbfunc = mca_btl_mvapi_endpoint_credits_hp;
|
|
frag->base.des_cbdata = NULL;
|
|
frag->endpoint = endpoint;
|
|
|
|
frag->hdr->tag = MCA_BTL_TAG_BTL;
|
|
frag->hdr->credits = endpoint->rd_credits_hp;
|
|
OPAL_THREAD_ADD32(&endpoint->rd_credits_hp, -frag->hdr->credits);
|
|
|
|
frag->sr_desc.opcode = VAPI_SEND;
|
|
frag->sg_entry.addr = (VAPI_virt_addr_t) (MT_virt_addr_t) frag->hdr;
|
|
frag->sg_entry.len = sizeof(mca_btl_mvapi_header_t);
|
|
|
|
if(sizeof(mca_btl_mvapi_header_t) <= mvapi_btl->ib_inline_max) {
|
|
ret = EVAPI_post_inline_sr(mvapi_btl->nic, endpoint->lcl_qp_hndl_hp, &frag->sr_desc);
|
|
} else {
|
|
ret = VAPI_post_sr(mvapi_btl->nic, endpoint->lcl_qp_hndl_hp, &frag->sr_desc);
|
|
}
|
|
if(ret != VAPI_SUCCESS) {
|
|
OPAL_THREAD_ADD32(&endpoint->sd_credits_lp, -1);
|
|
OPAL_THREAD_ADD32(&endpoint->rd_credits_lp, frag->hdr->credits);
|
|
MCA_BTL_IB_FRAG_RETURN_EAGER(mvapi_btl, frag);
|
|
BTL_ERROR(("error posting send request errno %d says %s", strerror(errno)));
|
|
return;
|
|
}
|
|
}
|
|
|