274 строки
9.9 KiB
C
274 строки
9.9 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) 2004-2006 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_FRAG_H
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#define MCA_BTL_IB_FRAG_H
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#include "ompi_config.h"
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#include <infiniband/verbs.h>
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#include "ompi/mca/btl/btl.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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struct mca_btl_openib_reg_t;
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struct mca_btl_openib_header_t {
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mca_btl_base_tag_t tag;
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#if OMPI_ENABLE_HETEROGENEOUS_SUPPORT
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uint8_t padding[1];
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#endif
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uint16_t credits;
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};
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typedef struct mca_btl_openib_header_t mca_btl_openib_header_t;
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#define BTL_OPENIB_RDMA_CREDITS_FLAG (1<<15)
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#define BTL_OPENIB_IS_RDMA_CREDITS(I) ((I)&BTL_OPENIB_RDMA_CREDITS_FLAG)
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#define BTL_OPENIB_CREDITS(I) ((I)&~BTL_OPENIB_RDMA_CREDITS_FLAG)
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#define BTL_OPENIB_HEADER_HTON(h) \
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do { \
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h.credits = htons(h.credits); \
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} while (0)
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#define BTL_OPENIB_HEADER_NTOH(h) \
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do { \
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h.credits = ntohs(h.credits); \
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} while (0)
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struct mca_btl_openib_footer_t {
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#if OMPI_ENABLE_DEBUG
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uint32_t seq;
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#endif
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union {
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uint32_t size;
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uint8_t buf[4];
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} u;
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};
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typedef struct mca_btl_openib_footer_t mca_btl_openib_footer_t;
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#ifdef WORDS_BIGENDIAN
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#define MCA_BTL_OPENIB_FTR_SIZE_REVERSE(ftr)
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#else
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#define MCA_BTL_OPENIB_FTR_SIZE_REVERSE(ftr) \
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do { \
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uint8_t tmp = (ftr).u.buf[0]; \
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(ftr).u.buf[0]=(ftr).u.buf[2]; \
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(ftr).u.buf[2]=tmp; \
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} while (0)
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#endif
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#if OMPI_ENABLE_DEBUG
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#define BTL_OPENIB_FOOTER_HTON(h) \
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do { \
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h.seq = htonl(h.seq); \
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MCA_BTL_OPENIB_FTR_SIZE_REVERSE(h); \
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} while (0)
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#define BTL_OPENIB_FOOTER_NTOH(h) \
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do { \
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h.seq = ntohl(h.seq); \
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MCA_BTL_OPENIB_FTR_SIZE_REVERSE(h); \
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} while (0)
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#else
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#define BTL_OPENIB_FOOTER_HTON(h) \
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do { \
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MCA_BTL_OPENIB_FTR_SIZE_REVERSE(h); \
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} while (0)
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#define BTL_OPENIB_FOOTER_NTOH(h) \
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do { \
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MCA_BTL_OPENIB_FTR_SIZE_REVERSE(h); \
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} while (0)
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#endif
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#define MCA_BTL_OPENIB_CONTROL_CREDITS 0
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#define MCA_BTL_OPENIB_CONTROL_RDMA 1
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struct mca_btl_openib_control_header_t {
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uint8_t type;
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};
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typedef struct mca_btl_openib_control_header_t mca_btl_openib_control_header_t;
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struct mca_btl_openib_eager_rdma_header_t {
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mca_btl_openib_control_header_t control;
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uint8_t padding[3];
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uint32_t rkey;
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ompi_ptr_t rdma_start;
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uint64_t frag_t_len;
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};
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typedef struct mca_btl_openib_eager_rdma_header_t mca_btl_openib_eager_rdma_header_t;
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#define BTL_OPENIB_EAGER_RDMA_CONTROL_HEADER_HTON(h) \
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do { \
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h.rkey = htonl(h.rkey); \
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h.rdma_start.lval = hton64(h.rdma_start.lval); \
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h.frag_t_len = hton64(h.frag_t_len); \
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} while (0)
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#define BTL_OPENIB_EAGER_RDMA_CONTROL_HEADER_NTOH(h) \
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do { \
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h.rkey = ntohl(h.rkey); \
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h.rdma_start.lval = ntoh64(h.rdma_start.lval); \
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h.frag_t_len = ntoh64(h.frag_t_len); \
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} while (0)
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struct mca_btl_openib_rdma_credits_header_t {
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mca_btl_openib_control_header_t control;
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uint8_t padding[1];
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uint16_t rdma_credits;
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};
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typedef struct mca_btl_openib_rdma_credits_header_t mca_btl_openib_rdma_credits_header_t;
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#define BTL_OPENIB_RDMA_CREDITS_HEADER_HTON(h) \
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do { \
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/* BTL_OPENIB_CONTROL_HEADER_HTON(h.control); */ \
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h.rdma_credits = htons(h.rdma_credits); \
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} while (0)
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#define BTL_OPENIB_RDMA_CREDITS_HEADER_NTOH(h) \
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do { \
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/* BTL_OPENIB_CONTROL_HEADER_NTOH(h.control); */ \
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h.rdma_credits = ntohs(h.rdma_credits); \
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} while (0)
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enum mca_btl_openib_frag_type_t {
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MCA_BTL_OPENIB_FRAG_EAGER,
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MCA_BTL_OPENIB_FRAG_MAX,
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MCA_BTL_OPENIB_FRAG_FRAG,
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MCA_BTL_OPENIB_FRAG_EAGER_RDMA,
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MCA_BTL_OPENIB_FRAG_CONTROL
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};
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typedef enum mca_btl_openib_frag_type_t mca_btl_openib_frag_type_t;
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/**
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* IB send fragment derived type.
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*/
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struct mca_btl_openib_frag_t {
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mca_btl_base_descriptor_t base;
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struct mca_btl_base_endpoint_t *endpoint;
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mca_btl_openib_footer_t *ftr;
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mca_btl_openib_header_t *hdr;
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mca_btl_base_segment_t segment;
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size_t size;
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int rc;
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mca_btl_openib_frag_type_t type;
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union{
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struct ibv_recv_wr rd_desc;
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struct ibv_send_wr sr_desc;
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} wr_desc;
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struct ibv_sge sg_entry;
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struct mca_btl_openib_reg_t *registration;
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};
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typedef struct mca_btl_openib_frag_t mca_btl_openib_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_frag_t);
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typedef struct mca_btl_openib_frag_t mca_btl_openib_send_frag_eager_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_send_frag_eager_t);
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typedef struct mca_btl_openib_frag_t mca_btl_openib_send_frag_max_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_send_frag_max_t);
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typedef struct mca_btl_openib_frag_t mca_btl_openib_send_frag_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_send_frag_frag_t);
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typedef struct mca_btl_openib_frag_t mca_btl_openib_recv_frag_eager_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_recv_frag_eager_t);
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typedef struct mca_btl_openib_frag_t mca_btl_openib_recv_frag_max_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_recv_frag_max_t);
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typedef struct mca_btl_openib_frag_t mca_btl_openib_send_frag_control_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_send_frag_control_t);
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/*
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* Allocate an IB send descriptor
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*
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*/
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#define MCA_BTL_IB_FRAG_ALLOC_CREDIT_WAIT(btl, frag, rc) \
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{ \
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\
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ompi_free_list_item_t *item; \
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OMPI_FREE_LIST_WAIT(&((mca_btl_openib_module_t*)btl)->send_free_control, item, rc); \
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frag = (mca_btl_openib_frag_t*) item; \
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}
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#define MCA_BTL_IB_FRAG_ALLOC_EAGER(btl, frag, rc) \
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{ \
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\
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ompi_free_list_item_t *item; \
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OMPI_FREE_LIST_GET(&((mca_btl_openib_module_t*)btl)->send_free_eager, item, rc); \
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frag = (mca_btl_openib_frag_t*) item; \
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}
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#define MCA_BTL_IB_FRAG_ALLOC_MAX(btl, frag, rc) \
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{ \
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\
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ompi_free_list_item_t *item; \
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OMPI_FREE_LIST_GET(&((mca_btl_openib_module_t*)btl)->send_free_max, item, rc); \
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frag = (mca_btl_openib_frag_t*) item; \
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}
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#define MCA_BTL_IB_FRAG_ALLOC_FRAG(btl, frag, rc) \
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{ \
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\
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ompi_free_list_item_t *item; \
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OMPI_FREE_LIST_GET(&((mca_btl_openib_module_t*)btl)->send_free_frag, item, rc); \
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frag = (mca_btl_openib_frag_t*) item; \
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}
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#define MCA_BTL_IB_FRAG_RETURN(btl, frag) \
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{ do { \
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ompi_free_list_t* my_list = NULL; \
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switch(frag->type) { \
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case MCA_BTL_OPENIB_FRAG_EAGER_RDMA: \
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case MCA_BTL_OPENIB_FRAG_EAGER: \
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my_list = &btl->send_free_eager; \
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break; \
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case MCA_BTL_OPENIB_FRAG_MAX: \
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my_list = &btl->send_free_max; \
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break; \
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case MCA_BTL_OPENIB_FRAG_CONTROL: \
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my_list = &btl->send_free_control; \
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break; \
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case MCA_BTL_OPENIB_FRAG_FRAG: \
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my_list = &btl->send_free_frag; \
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break; \
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} \
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OMPI_FREE_LIST_RETURN(my_list, (ompi_free_list_item_t*)(frag)); \
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} while(0); \
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}
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struct mca_btl_openib_module_t;
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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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