253 строки
8.9 KiB
C
253 строки
8.9 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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#ifndef MCA_BTL_IB_ENDPOINT_H
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#define MCA_BTL_IB_ENDPOINT_H
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#include "opal/class/opal_list.h"
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#include "opal/event/event.h"
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#include "mca/pml/pml.h"
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#include "mca/btl/btl.h"
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#include "btl_mvapi_frag.h"
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#include "btl_mvapi.h"
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#include <vapi.h>
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#include <mtl_common.h>
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#include <vapi_common.h>
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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OBJ_CLASS_DECLARATION(mca_btl_mvapi_endpoint_t);
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struct mca_btl_mvapi_frag_t;
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struct mca_btl_mvapi_port_info_t {
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uint32_t subnet;
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};
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typedef struct mca_btl_mvapi_port_info_t mca_btl_mvapi_port_info_t;
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/**
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* State of IB endpoint connection.
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*/
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typedef enum {
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/* Defines the state in which this BTL instance
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* has started the process of connection */
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MCA_BTL_IB_CONNECTING,
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/* Waiting for ack from endpoint */
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MCA_BTL_IB_CONNECT_ACK,
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/*Waiting for final connection ACK from endpoint */
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MCA_BTL_IB_WAITING_ACK,
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/* Connected ... both sender & receiver have
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* buffers associated with this connection */
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MCA_BTL_IB_CONNECTED,
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/* Connection is closed, there are no resources
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* associated with this */
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MCA_BTL_IB_CLOSED,
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/* Maximum number of retries have been used.
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* Report failure on send to upper layer */
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MCA_BTL_IB_FAILED
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} mca_btl_mvapi_endpoint_state_t;
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struct mca_btl_mvapi_rem_info_t {
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VAPI_qp_num_t rem_qp_num_hp;
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/* High priority remote side QP number */
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VAPI_qp_num_t rem_qp_num_lp;
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/* Low prioirty remote size QP number */
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IB_lid_t rem_lid;
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/* Local identifier of the remote process */
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uint32_t rem_subnet;
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/* subnet of remote process */
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} ;
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typedef struct mca_btl_mvapi_rem_info_t mca_btl_mvapi_rem_info_t;
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/**
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* An abstraction that represents a connection to a endpoint process.
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* An instance of mca_btl_base_endpoint_t is associated w/ each process
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* and BTL pair at startup. However, connections to the endpoint
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* are established dynamically on an as-needed basis:
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*/
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struct mca_btl_base_endpoint_t {
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opal_list_item_t super;
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struct mca_btl_mvapi_module_t* endpoint_btl;
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/**< BTL instance that created this connection */
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struct mca_btl_mvapi_proc_t* endpoint_proc;
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/**< proc structure corresponding to endpoint */
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mca_btl_mvapi_endpoint_state_t endpoint_state;
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/**< current state of the connection */
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size_t endpoint_retries;
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/**< number of connection retries attempted */
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double endpoint_tstamp;
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/**< timestamp of when the first connection was attempted */
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opal_mutex_t endpoint_lock;
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/**< lock for concurrent access to endpoint state */
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opal_list_t pending_send_frags;
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/**< list of pending send frags for this endpoint */
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opal_list_t pending_frags_hp; /**< list of pending high priority frags */
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opal_list_t pending_frags_lp; /**< list of pending low priority frags */
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opal_list_t pending_frags_get; /**< list of pending get operations */
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mca_btl_mvapi_rem_info_t rem_info;
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VAPI_qp_hndl_t lcl_qp_hndl_hp; /* High priority local QP handle */
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VAPI_qp_hndl_t lcl_qp_hndl_lp; /* Low priority local QP handle */
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VAPI_qp_prop_t lcl_qp_prop_hp; /* High priority local QP properties */
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VAPI_qp_prop_t lcl_qp_prop_lp; /* Low priority local QP properties */
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int32_t sd_tokens_hp; /**< number of high priority send tokens */
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int32_t sd_tokens_lp; /**< number of low priority send tokens */
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int32_t get_tokens; /**< number of available get tokens */
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int32_t rd_posted_hp; /**< number of high priority descriptors posted to the nic*/
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int32_t rd_posted_lp; /**< number of low priority descriptors posted to the nic*/
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int32_t rd_credits_hp; /**< number of high priority credits to return to peer */
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int32_t rd_credits_lp; /**< number of low priority credits to return to peer */
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uint32_t subnet;
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#if 0
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mca_btl_mvapi_rdma_buf_t *rdma_buf;
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#endif
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};
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typedef struct mca_btl_base_endpoint_t mca_btl_base_endpoint_t;
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typedef mca_btl_base_endpoint_t mca_btl_mvapi_endpoint_t;
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int mca_btl_mvapi_endpoint_send(mca_btl_base_endpoint_t* endpoint, struct mca_btl_mvapi_frag_t* frag);
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int mca_btl_mvapi_endpoint_connect(mca_btl_base_endpoint_t*);
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void mca_btl_mvapi_endpoint_send_credits(
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mca_btl_base_endpoint_t*,
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VAPI_qp_hndl_t local,
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VAPI_qp_num_t rem,
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int32_t* credits);
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void mca_btl_mvapi_post_recv(void);
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#define MCA_BTL_MVAPI_ENDPOINT_POST_RR_HIGH(endpoint, \
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additional) \
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{ \
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do { \
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mca_btl_mvapi_module_t * mvapi_btl = endpoint->endpoint_btl; \
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OPAL_THREAD_LOCK(&mvapi_btl->ib_lock); \
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if(endpoint->rd_posted_hp <= mca_btl_mvapi_component.rd_low+additional && \
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endpoint->rd_posted_hp < mvapi_btl->rd_num){ \
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MCA_BTL_MVAPI_ENDPOINT_POST_RR_SUB(mvapi_btl->rd_num - \
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endpoint->rd_posted_hp, \
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endpoint, \
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&mvapi_btl->recv_free_eager, \
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endpoint->rd_posted_hp, \
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endpoint->rd_credits_hp, \
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mvapi_btl->nic, \
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endpoint->lcl_qp_hndl_hp); \
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} \
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OPAL_THREAD_UNLOCK(&mvapi_btl->ib_lock); \
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} while(0); \
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}
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#define MCA_BTL_MVAPI_ENDPOINT_POST_RR_LOW(endpoint, \
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additional) \
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{ \
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do { \
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mca_btl_mvapi_module_t * mvapi_btl = endpoint->endpoint_btl; \
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OPAL_THREAD_LOCK(&mvapi_btl->ib_lock); \
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if(endpoint->rd_posted_lp <= mca_btl_mvapi_component.rd_low+additional && \
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endpoint->rd_posted_lp < mvapi_btl->rd_num){ \
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MCA_BTL_MVAPI_ENDPOINT_POST_RR_SUB(mvapi_btl->rd_num - \
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endpoint->rd_posted_lp, \
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endpoint, \
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&mvapi_btl->recv_free_max, \
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endpoint->rd_posted_lp, \
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endpoint->rd_credits_lp, \
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mvapi_btl->nic, \
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endpoint->lcl_qp_hndl_lp); \
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} \
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OPAL_THREAD_UNLOCK(&mvapi_btl->ib_lock); \
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} while(0); \
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}
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#define MCA_BTL_MVAPI_ENDPOINT_POST_RR_SUB(cnt, \
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my_endpoint, \
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frag_list, \
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rd_posted, \
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rd_credits, \
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nic, \
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qp ) \
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{ \
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do { \
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int32_t i; \
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int rc; \
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int32_t num_post = cnt; \
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mca_btl_mvapi_module_t *mvapi_btl = my_endpoint->endpoint_btl; \
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VAPI_rr_desc_t* desc_post = mvapi_btl->rr_desc_post; \
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for(i = 0; i < num_post; i++) { \
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opal_list_item_t* item; \
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mca_btl_mvapi_frag_t* frag = NULL; \
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OMPI_FREE_LIST_WAIT(frag_list, item, rc); \
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frag = (mca_btl_mvapi_frag_t*) item; \
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frag->endpoint = my_endpoint; \
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frag->sg_entry.len = frag->size + \
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((unsigned char*) frag->segment.seg_addr.pval- \
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(unsigned char*) frag->hdr); \
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desc_post[i] = frag->rr_desc; \
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}\
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rc = EVAPI_post_rr_list( nic, \
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qp, \
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num_post, \
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desc_post); \
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if(VAPI_OK != rc) { \
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BTL_ERROR(("error posting receive descriptors: %s",\
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VAPI_strerror(rc))); \
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} else { \
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/* fprintf(stderr, "posting: %d to %d\n", num_post, rd_posted); */ \
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OPAL_THREAD_ADD32(&(rd_posted), num_post); \
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/* fprintf(stderr, "credits: %d to %d\n", num_post, rd_credits); */ \
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OPAL_THREAD_ADD32(&(rd_credits), num_post); \
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}\
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} while(0); \
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}
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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