a584c60dbe
of credits from the peer prior to local completion, so that we don't overrun the number of send wqes available. This commit was SVN r8683.
173 строки
6.1 KiB
C
173 строки
6.1 KiB
C
/*
|
|
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
|
|
* University Research and Technology
|
|
* Corporation. All rights reserved.
|
|
* Copyright (c) 2004-2005 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
|
|
*
|
|
* $HEADER$
|
|
*/
|
|
|
|
#ifndef MCA_BTL_IB_FRAG_H
|
|
#define MCA_BTL_IB_FRAG_H
|
|
|
|
|
|
#define MCA_BTL_IB_FRAG_ALIGN (8)
|
|
#include "ompi_config.h"
|
|
#include "btl_openib.h"
|
|
|
|
#include <infiniband/verbs.h>
|
|
#include "mca/mpool/openib/mpool_openib.h"
|
|
|
|
#if defined(c_plusplus) || defined(__cplusplus)
|
|
extern "C" {
|
|
#endif
|
|
OMPI_DECLSPEC OBJ_CLASS_DECLARATION(mca_btl_openib_frag_t);
|
|
|
|
struct mca_btl_openib_header_t {
|
|
mca_btl_base_tag_t tag;
|
|
int16_t credits;
|
|
};
|
|
typedef struct mca_btl_openib_header_t mca_btl_openib_header_t;
|
|
|
|
|
|
/**
|
|
* IB send fragment derived type.
|
|
*/
|
|
struct mca_btl_openib_frag_t {
|
|
mca_btl_base_descriptor_t base;
|
|
mca_btl_base_segment_t segment;
|
|
struct mca_btl_base_endpoint_t *endpoint;
|
|
size_t size;
|
|
int rc;
|
|
union{
|
|
struct ibv_recv_wr rd_desc;
|
|
struct ibv_send_wr sr_desc;
|
|
} wr_desc;
|
|
struct ibv_sge sg_entry;
|
|
struct ibv_mr *mr;
|
|
mca_btl_openib_header_t *hdr;
|
|
mca_mpool_openib_registration_t * openib_reg;
|
|
};
|
|
typedef struct mca_btl_openib_frag_t mca_btl_openib_frag_t;
|
|
OBJ_CLASS_DECLARATION(mca_btl_openib_frag_t);
|
|
|
|
|
|
typedef struct mca_btl_openib_frag_t mca_btl_openib_send_frag_eager_t;
|
|
|
|
OBJ_CLASS_DECLARATION(mca_btl_openib_send_frag_eager_t);
|
|
|
|
typedef struct mca_btl_openib_frag_t mca_btl_openib_send_frag_max_t;
|
|
|
|
OBJ_CLASS_DECLARATION(mca_btl_openib_send_frag_max_t);
|
|
|
|
typedef struct mca_btl_openib_frag_t mca_btl_openib_send_frag_frag_t;
|
|
|
|
OBJ_CLASS_DECLARATION(mca_btl_openib_send_frag_frag_t);
|
|
|
|
typedef struct mca_btl_openib_frag_t mca_btl_openib_recv_frag_eager_t;
|
|
|
|
OBJ_CLASS_DECLARATION(mca_btl_openib_recv_frag_eager_t);
|
|
|
|
typedef struct mca_btl_openib_frag_t mca_btl_openib_recv_frag_max_t;
|
|
|
|
OBJ_CLASS_DECLARATION(mca_btl_openib_recv_frag_max_t);
|
|
|
|
|
|
|
|
|
|
/*
|
|
* Allocate an IB send descriptor
|
|
*
|
|
*/
|
|
|
|
#define MCA_BTL_IB_FRAG_ALLOC_EAGER(btl, frag, rc) \
|
|
{ \
|
|
\
|
|
opal_list_item_t *item; \
|
|
OMPI_FREE_LIST_WAIT(&((mca_btl_openib_module_t*)btl)->send_free_eager, item, rc); \
|
|
frag = (mca_btl_openib_frag_t*) item; \
|
|
}
|
|
|
|
#define MCA_BTL_IB_FRAG_RETURN_EAGER(btl, frag) \
|
|
{ \
|
|
OMPI_FREE_LIST_RETURN(&((mca_btl_openib_module_t*)btl)->send_free_eager, (opal_list_item_t*)(frag)); \
|
|
}
|
|
|
|
|
|
#define MCA_BTL_IB_FRAG_ALLOC_MAX(btl, frag, rc) \
|
|
{ \
|
|
\
|
|
opal_list_item_t *item; \
|
|
OMPI_FREE_LIST_WAIT(&((mca_btl_openib_module_t*)btl)->send_free_max, item, rc); \
|
|
frag = (mca_btl_openib_frag_t*) item; \
|
|
}
|
|
|
|
#define MCA_BTL_IB_FRAG_RETURN_MAX(btl, frag) \
|
|
{ \
|
|
OMPI_FREE_LIST_RETURN(&((mca_btl_openib_module_t*)btl)->send_free_max, (opal_list_item_t*)(frag)); \
|
|
}
|
|
|
|
|
|
#define MCA_BTL_IB_FRAG_ALLOC_FRAG(btl, frag, rc) \
|
|
{ \
|
|
\
|
|
opal_list_item_t *item; \
|
|
OMPI_FREE_LIST_WAIT(&((mca_btl_openib_module_t*)btl)->send_free_frag, item, rc); \
|
|
frag = (mca_btl_openib_frag_t*) item; \
|
|
}
|
|
|
|
#define MCA_BTL_IB_FRAG_RETURN_FRAG(btl, frag) \
|
|
{ \
|
|
OMPI_FREE_LIST_RETURN(&((mca_btl_openib_module_t*)btl)->send_free_frag, (opal_list_item_t*)(frag)); \
|
|
}
|
|
|
|
|
|
#define MCA_BTL_IB_FRAG_PROGRESS(frag) \
|
|
do { \
|
|
switch(frag->wr_desc.sr_desc.opcode) { \
|
|
case IBV_WR_SEND: \
|
|
if(OMPI_SUCCESS != mca_btl_openib_endpoint_send(frag->endpoint, frag)) { \
|
|
BTL_ERROR(("error in posting pending send\n")); \
|
|
} \
|
|
break; \
|
|
case IBV_WR_RDMA_WRITE: \
|
|
if(OMPI_SUCCESS != mca_btl_openib_put((mca_btl_base_module_t*) openib_btl, \
|
|
frag->endpoint, \
|
|
(mca_btl_base_descriptor_t*) frag)) { \
|
|
BTL_ERROR(("error in posting pending rdma write\n")); \
|
|
} \
|
|
break; \
|
|
case IBV_WR_RDMA_READ: \
|
|
if(OMPI_SUCCESS != mca_btl_openib_get((mca_btl_base_module_t *) openib_btl, \
|
|
frag->endpoint, \
|
|
(mca_btl_base_descriptor_t*) frag)) { \
|
|
BTL_ERROR(("error in posting pending rdma read\n")); \
|
|
} \
|
|
break; \
|
|
default: \
|
|
BTL_ERROR(("error in posting pending operation, invalide opcode %d\n", frag->wr_desc.sr_desc.opcode)); \
|
|
break; \
|
|
} \
|
|
} while (0)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
struct mca_btl_openib_module_t;
|
|
|
|
#if defined(c_plusplus) || defined(__cplusplus)
|
|
}
|
|
#endif
|
|
#endif
|