27cea44a9c
* Make sure that the pval always writes to the correct portion of the
lval. This only matters on 32 bit big endian machines.
* On 32 bit machines when assigning to pval, the other 4 bytes of lval
weren't being written, which could lead to bogus data
We use macros so that there aren't casts all over the code and the pval
assignment can occur to the correct 4 bytes. Refs trac:587
This commit was SVN r12974.
The following Trac tickets were found above:
Ticket 587 --> https://svn.open-mpi.org/trac/ompi/ticket/587
169 строки
5.8 KiB
C
169 строки
5.8 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 (c) 2006 Los Alamos National Security, LLC. All rights
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* 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 "btl_openib_frag.h"
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#include "btl_openib_eager_rdma.h"
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static void mca_btl_openib_frag_common_constructor( mca_btl_openib_frag_t* frag)
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{
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mca_btl_openib_reg_t* registration =
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(mca_btl_openib_reg_t*)frag->base.super.user_data;
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frag->hdr = (mca_btl_openib_header_t*) (frag+1); /* initialize the btl header to start at end of frag */
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OMPI_PTR_SET_PVAL(frag->segment.seg_addr, ((unsigned char* )frag->hdr) + sizeof(mca_btl_openib_header_t));
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/* init the segment address to start after the btl header */
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if(registration) {
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frag->registration = registration;
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frag->sg_entry.lkey = registration->mr->lkey;
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frag->segment.seg_key.key32[0] = frag->sg_entry.lkey;
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}
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frag->segment.seg_len = frag->size;
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frag->sg_entry.addr = (unsigned long) frag->hdr;
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frag->sg_entry.length = frag->size + sizeof(mca_btl_openib_header_t);
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frag->base.des_flags = 0;
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}
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static void mca_btl_openib_send_frag_common_constructor(mca_btl_openib_frag_t* frag)
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{
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mca_btl_openib_frag_common_constructor(frag);
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frag->base.des_src = &frag->segment;
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frag->base.des_src_cnt = 1;
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frag->base.des_dst = NULL;
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frag->base.des_dst_cnt = 0;
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frag->wr_desc.sr_desc.wr_id = (unsigned long) frag;
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frag->wr_desc.sr_desc.sg_list = &frag->sg_entry;
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frag->wr_desc.sr_desc.num_sge = 1;
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frag->wr_desc.sr_desc.opcode = IBV_WR_SEND;
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frag->wr_desc.sr_desc.send_flags = IBV_SEND_SIGNALED;
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frag->wr_desc.sr_desc.next = NULL;
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}
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static void mca_btl_openib_recv_frag_common_constructor(mca_btl_openib_frag_t* frag)
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{
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mca_btl_openib_frag_common_constructor(frag);
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frag->base.des_dst = &frag->segment;
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frag->base.des_dst_cnt = 1;
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frag->base.des_src = NULL;
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frag->base.des_src_cnt = 0;
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frag->wr_desc.rd_desc.wr_id = (unsigned long) frag;
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frag->wr_desc.rd_desc.sg_list = &frag->sg_entry;
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frag->wr_desc.rd_desc.num_sge = 1;
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frag->wr_desc.rd_desc.next = NULL;
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}
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static void mca_btl_openib_send_frag_eager_constructor(mca_btl_openib_frag_t* frag)
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{
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frag->size = mca_btl_openib_component.eager_limit;
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frag->type = MCA_BTL_OPENIB_FRAG_EAGER;
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mca_btl_openib_send_frag_common_constructor(frag);
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}
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static void mca_btl_openib_send_frag_max_constructor(mca_btl_openib_frag_t* frag)
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{
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frag->size = mca_btl_openib_component.max_send_size;
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frag->type = MCA_BTL_OPENIB_FRAG_MAX;
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mca_btl_openib_send_frag_common_constructor(frag);
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}
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static void mca_btl_openib_recv_frag_max_constructor(mca_btl_openib_frag_t* frag)
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{
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frag->size = mca_btl_openib_component.max_send_size;
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frag->type = MCA_BTL_OPENIB_FRAG_MAX;
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mca_btl_openib_recv_frag_common_constructor(frag);
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}
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static void mca_btl_openib_recv_frag_eager_constructor(mca_btl_openib_frag_t* frag)
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{
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frag->size = mca_btl_openib_component.eager_limit;
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frag->type = MCA_BTL_OPENIB_FRAG_EAGER;
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mca_btl_openib_recv_frag_common_constructor(frag);
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frag->ftr = (mca_btl_openib_footer_t*)((char*) OMPI_PTR_GET_PVAL(frag->segment.seg_addr)
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+ frag->size);
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MCA_BTL_OPENIB_RDMA_MAKE_REMOTE(frag->ftr);
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}
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static void mca_btl_openib_send_frag_frag_constructor(mca_btl_openib_frag_t* frag)
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{
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frag->size = 0;
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frag->type = MCA_BTL_OPENIB_FRAG_FRAG;
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mca_btl_openib_send_frag_common_constructor(frag);
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}
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static void mca_btl_openib_send_frag_control_constructor(mca_btl_openib_frag_t* frag)
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{
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frag->size = sizeof(mca_btl_openib_eager_rdma_header_t);
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frag->type = MCA_BTL_OPENIB_FRAG_CONTROL;
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mca_btl_openib_send_frag_common_constructor(frag);
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}
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OBJ_CLASS_INSTANCE(
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mca_btl_openib_frag_t,
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mca_btl_base_descriptor_t,
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NULL,
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NULL);
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OBJ_CLASS_INSTANCE(
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mca_btl_openib_send_frag_eager_t,
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mca_btl_base_descriptor_t,
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mca_btl_openib_send_frag_eager_constructor,
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NULL);
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OBJ_CLASS_INSTANCE(
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mca_btl_openib_send_frag_max_t,
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mca_btl_base_descriptor_t,
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mca_btl_openib_send_frag_max_constructor,
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NULL);
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OBJ_CLASS_INSTANCE(
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mca_btl_openib_send_frag_frag_t,
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mca_btl_base_descriptor_t,
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mca_btl_openib_send_frag_frag_constructor,
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NULL);
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OBJ_CLASS_INSTANCE(
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mca_btl_openib_recv_frag_eager_t,
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mca_btl_base_descriptor_t,
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mca_btl_openib_recv_frag_eager_constructor,
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NULL);
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OBJ_CLASS_INSTANCE(
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mca_btl_openib_recv_frag_max_t,
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mca_btl_base_descriptor_t,
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mca_btl_openib_recv_frag_max_constructor,
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NULL);
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OBJ_CLASS_INSTANCE(
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mca_btl_openib_send_frag_control_t,
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mca_btl_base_descriptor_t,
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mca_btl_openib_send_frag_control_constructor,
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NULL);
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