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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2007 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*/
#ifndef OMPI_PML_OB1_RECV_REQUEST_H
#define OMPI_PML_OB1_RECV_REQUEST_H
#include "pml_ob1.h"
#include "pml_ob1_rdma.h"
#include "pml_ob1_rdmafrag.h"
#include "ompi/proc/proc.h"
#include "ompi/mca/pml/ob1/pml_ob1_comm.h"
#include "ompi/mca/mpool/base/base.h"
#include "ompi/mca/pml/base/pml_base_recvreq.h"
#include "ompi/datatype/datatype.h"
#if defined(c_plusplus) || defined(__cplusplus)
extern "C" {
#endif
struct mca_pml_ob1_recv_request_t {
mca_pml_base_recv_request_t req_recv;
ompi_ptr_t req_send;
#if OMPI_HAVE_THREAD_SUPPORT
volatile int32_t req_lock;
#else
int32_t req_lock;
#endif
size_t req_pipeline_depth;
size_t req_bytes_received;
size_t req_bytes_delivered;
size_t req_rdma_offset;
mca_pml_ob1_rdma_btl_t req_rdma[MCA_PML_OB1_MAX_RDMA_PER_REQUEST];
uint32_t req_rdma_cnt;
uint32_t req_rdma_idx;
bool req_pending;
bool req_ack_sent; /**< whether ack was sent to the sender */
};
typedef struct mca_pml_ob1_recv_request_t mca_pml_ob1_recv_request_t;
OBJ_CLASS_DECLARATION(mca_pml_ob1_recv_request_t);
/**
* Allocate a recv request from the modules free list.
*
* @param rc (OUT) OMPI_SUCCESS or error status on failure.
* @return Receive request.
*/
#define MCA_PML_OB1_RECV_REQUEST_ALLOC(recvreq, rc) \
do { \
ompi_free_list_item_t* item; \
rc = OMPI_SUCCESS; \
OMPI_FREE_LIST_GET(&mca_pml_base_recv_requests, item, rc); \
recvreq = (mca_pml_ob1_recv_request_t*)item; \
} while(0)
/**
* Initialize a receive request with call parameters.
*
* @param request (IN) Receive request.
* @param addr (IN) User buffer.
* @param count (IN) Number of elements of indicated datatype.
* @param datatype (IN) User defined datatype.
* @param src (IN) Source rank w/in the communicator.
* @param tag (IN) User defined tag.
* @param comm (IN) Communicator.
* @param persistent (IN) Is this a ersistent request.
*/
#define MCA_PML_OB1_RECV_REQUEST_INIT( request, \
addr, \
count, \
datatype, \
src, \
tag, \
comm, \
persistent) \
do { \
MCA_PML_BASE_RECV_REQUEST_INIT( &(request)->req_recv, \
addr, \
count, \
datatype, \
src, \
tag, \
comm, \
persistent); \
(request)->req_bytes_delivered = 0; \
if( MPI_ANY_SOURCE != src ) { \
(request)->req_recv.req_base.req_proc = \
comm->c_pml_comm->procs[src].ompi_proc; \
if( (0 != (datatype)->size) && (0 != count) ) { \
ompi_convertor_copy_and_prepare_for_recv( \
(request)->req_recv.req_base.req_proc->proc_convertor, \
(request)->req_recv.req_base.req_datatype, \
(request)->req_recv.req_base.req_count, \
(request)->req_recv.req_base.req_addr, \
0, \
&(request)->req_recv.req_base.req_convertor ); \
ompi_convertor_get_unpacked_size( &(request)->req_recv.req_base.req_convertor, \
&(request)->req_bytes_delivered ); \
} \
} \
} while(0)
/**
* Mark the request as completed at MPI level for internal purposes.
*
* @param recvreq (IN) Receive request.
*/
#define MCA_PML_OB1_RECV_REQUEST_MPI_COMPLETE( recvreq ) \
do { \
PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_REQ_COMPLETE, \
&(recvreq->req_recv.req_base), PERUSE_RECV ); \
MCA_PML_BASE_REQUEST_MPI_COMPLETE( &(recvreq->req_recv.req_base.req_ompi) ); \
} while (0)
/**
* Return a recv request to the modules free list.
*
* @param recvreq (IN) Receive request.
*/
#define MCA_PML_OB1_RECV_REQUEST_PML_COMPLETE(recvreq) \
do { \
size_t r; \
\
assert( false == recvreq->req_recv.req_base.req_pml_complete ); \
\
if((recvreq)->req_recv.req_bytes_packed > 0) { \
PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_REQ_XFER_END, \
&(recvreq->req_recv.req_base), PERUSE_RECV ); \
} \
\
for( r = 0; r < recvreq->req_rdma_cnt; r++ ) { \
mca_mpool_base_registration_t* btl_reg = recvreq->req_rdma[r].btl_reg; \
if( NULL != btl_reg ) { \
btl_reg->mpool->mpool_deregister( btl_reg->mpool, btl_reg ); \
} \
} \
recvreq->req_rdma_cnt = 0; \
\
OPAL_THREAD_LOCK(&ompi_request_lock); \
\
if( true == recvreq->req_recv.req_base.req_free_called ) { \
MCA_PML_OB1_RECV_REQUEST_RETURN( recvreq ); \
} else { \
/* initialize request status */ \
recvreq->req_recv.req_base.req_pml_complete = true; \
recvreq->req_recv.req_base.req_ompi.req_status._count = \
recvreq->req_bytes_received; \
if (recvreq->req_bytes_received > recvreq->req_bytes_delivered) { \
recvreq->req_recv.req_base.req_ompi.req_status._count = \
recvreq->req_bytes_delivered; \
recvreq->req_recv.req_base.req_ompi.req_status.MPI_ERROR = \
MPI_ERR_TRUNCATE; \
} \
MCA_PML_OB1_RECV_REQUEST_MPI_COMPLETE( recvreq ); \
} \
OPAL_THREAD_UNLOCK(&ompi_request_lock); \
} while(0)
/*
* Free the PML receive request
*/
#define MCA_PML_OB1_RECV_REQUEST_RETURN(recvreq) \
{ \
MCA_PML_BASE_RECV_REQUEST_FINI(&(recvreq)->req_recv); \
OMPI_FREE_LIST_RETURN( &mca_pml_base_recv_requests, \
(ompi_free_list_item_t*)(recvreq)); \
}
/**
* Attempt to match the request against the unexpected fragment list
* for all source ranks w/in the communicator.
*
* @param request (IN) Request to match.
*/
void mca_pml_ob1_recv_request_match_wild(mca_pml_ob1_recv_request_t* request);
/**
* Attempt to match the request against the unexpected fragment list
* for a specific source rank.
*
* @param request (IN) Request to match.
*/
void mca_pml_ob1_recv_request_match_specific(mca_pml_ob1_recv_request_t* request);
/**
* Initialize diagnostic code for tracing rdma protocol timing
*/
/**
* Start an initialized request.
*
* @param request Receive request.
* @return OMPI_SUCESS or error status on failure.
*/
#define MCA_PML_OB1_RECV_REQUEST_START(request) \
do { \
/* init/re-init the request */ \
(request)->req_bytes_received = 0; \
(request)->req_bytes_delivered = 0; \
(request)->req_lock = 0; \
(request)->req_pipeline_depth = 0; \
(request)->req_rdma_idx = 0; \
(request)->req_pending = false; \
(request)->req_ack_sent = false; \
\
MCA_PML_BASE_RECV_START( &(request)->req_recv.req_base ); \
\
/* attempt to match posted recv */ \
if((request)->req_recv.req_base.req_peer == OMPI_ANY_SOURCE) { \
mca_pml_ob1_recv_request_match_wild(request); \
} else { \
mca_pml_ob1_recv_request_match_specific(request); \
} \
} while (0)
/**
*
*/
#define MCA_PML_OB1_RECV_REQUEST_MATCHED( request, hdr ) \
do { \
(request)->req_recv.req_base.req_ompi.req_status.MPI_TAG = (hdr)->hdr_tag; \
(request)->req_recv.req_base.req_ompi.req_status.MPI_SOURCE = (hdr)->hdr_src; \
\
PERUSE_TRACE_COMM_EVENT( PERUSE_COMM_MSG_MATCH_POSTED_REQ, \
&((request)->req_recv.req_base), PERUSE_RECV ); \
\
if((request)->req_recv.req_bytes_packed > 0) { \
if( (MPI_ANY_SOURCE == (request)->req_recv.req_base.req_peer) || \
(0 == (request)->req_bytes_delivered) ) { \
ompi_convertor_copy_and_prepare_for_recv( \
(request)->req_recv.req_base.req_proc->proc_convertor, \
(request)->req_recv.req_base.req_datatype, \
(request)->req_recv.req_base.req_count, \
(request)->req_recv.req_base.req_addr, \
0, \
&(request)->req_recv.req_base.req_convertor ); \
ompi_convertor_get_unpacked_size( &(request)->req_recv.req_base.req_convertor, \
&(request)->req_bytes_delivered ); \
} \
PERUSE_TRACE_COMM_EVENT (PERUSE_COMM_REQ_XFER_BEGIN, \
&((request)->req_recv.req_base), PERUSE_RECV); \
} \
} while (0)
/**
*
*/
#define MCA_PML_OB1_RECV_REQUEST_UNPACK( \
request, \
segments, \
num_segments, \
seg_offset, \
data_offset, \
bytes_received, \
bytes_delivered) \
do { \
bytes_delivered = 0; \
if(request->req_recv.req_bytes_packed > 0) { \
struct iovec iov[MCA_BTL_DES_MAX_SEGMENTS]; \
uint32_t iov_count = 0; \
size_t max_data = bytes_received; \
size_t n, offset = seg_offset; \
mca_btl_base_segment_t* segment = segments; \
\
for( n = 0; n < num_segments; n++, segment++ ) { \
if(offset >= segment->seg_len) { \
offset -= segment->seg_len; \
} else { \
iov[iov_count].iov_len = segment->seg_len - seg_offset; \
iov[iov_count].iov_base = (IOVBASE_TYPE*)((unsigned char*)segment->seg_addr.pval + seg_offset); \
iov_count++; \
} \
} \
PERUSE_TRACE_COMM_OMPI_EVENT (PERUSE_COMM_REQ_XFER_CONTINUE, \
&(recvreq->req_recv.req_base), max_data, \
PERUSE_RECV); \
ompi_convertor_set_position( &(request->req_recv.req_base.req_convertor), \
&data_offset ); \
ompi_convertor_unpack( &(request)->req_recv.req_base.req_convertor, \
iov, \
&iov_count, \
&max_data ); \
bytes_delivered = max_data; \
} \
} while (0)
/**
*
*/
void mca_pml_ob1_recv_request_progress(
mca_pml_ob1_recv_request_t* req,
struct mca_btl_base_module_t* btl,
mca_btl_base_segment_t* segments,
size_t num_segments);
/**
*
*/
void mca_pml_ob1_recv_request_matched_probe(
mca_pml_ob1_recv_request_t* req,
struct mca_btl_base_module_t* btl,
mca_btl_base_segment_t* segments,
size_t num_segments);
/**
*
*/
int mca_pml_ob1_recv_request_schedule_exclusive(
mca_pml_ob1_recv_request_t* req);
static inline void mca_pml_ob1_recv_request_schedule(
mca_pml_ob1_recv_request_t* req)
{
if(OPAL_THREAD_ADD32(&req->req_lock,1) == 1)
mca_pml_ob1_recv_request_schedule_exclusive(req);
}
#define MCA_PML_OB1_ADD_ACK_TO_PENDING(P, S, D, O) \
do { \
mca_pml_ob1_pckt_pending_t *_pckt; \
int _rc; \
\
MCA_PML_OB1_PCKT_PENDING_ALLOC(_pckt,_rc); \
_pckt->hdr.hdr_common.hdr_type = MCA_PML_OB1_HDR_TYPE_ACK; \
_pckt->hdr.hdr_ack.hdr_src_req.lval = (S); \
_pckt->hdr.hdr_ack.hdr_dst_req.pval = (D); \
_pckt->hdr.hdr_ack.hdr_rdma_offset = (O); \
_pckt->proc = (P); \
_pckt->bml_btl = NULL; \
OPAL_THREAD_LOCK(&mca_pml_ob1.lock); \
opal_list_append(&mca_pml_ob1.pckt_pending, \
(opal_list_item_t*)_pckt); \
OPAL_THREAD_UNLOCK(&mca_pml_ob1.lock); \
} while(0)
int mca_pml_ob1_recv_request_ack_send_btl(ompi_proc_t* proc,
mca_bml_base_btl_t* bml_btl, uint64_t hdr_src_req, void *hdr_dst_req,
uint64_t hdr_rdma_offset);
static inline int mca_pml_ob1_recv_request_ack_send(ompi_proc_t* proc,
uint64_t hdr_src_req, void *hdr_dst_req, uint64_t hdr_rdma_offset)
{
size_t i;
mca_bml_base_btl_t* bml_btl;
mca_bml_base_endpoint_t* endpoint =
(mca_bml_base_endpoint_t*)proc->proc_bml;
for(i = 0; i < mca_bml_base_btl_array_get_size(&endpoint->btl_eager); i++) {
bml_btl = mca_bml_base_btl_array_get_next(&endpoint->btl_eager);
if(mca_pml_ob1_recv_request_ack_send_btl(proc, bml_btl, hdr_src_req,
hdr_dst_req, hdr_rdma_offset) == OMPI_SUCCESS)
return OMPI_SUCCESS;
}
MCA_PML_OB1_ADD_ACK_TO_PENDING(proc, hdr_src_req, hdr_dst_req,
hdr_rdma_offset);
return OMPI_ERR_OUT_OF_RESOURCE;
}
int mca_pml_ob1_recv_request_get_frag(mca_pml_ob1_rdma_frag_t* frag);
/* This function tries to continue recvreq that stuck due to resource
* unavailability. Recvreq is added to recv_pending list if scheduling of put
* operation cannot be accomplished for some reason. */
void mca_pml_ob1_recv_request_process_pending(void);
#if defined(c_plusplus) || defined(__cplusplus)
}
#endif
#endif
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