458 строки
15 KiB
C
458 строки
15 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) 2004-2013 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) 2009 IBM Corporation. All rights reserved.
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* Copyright (c) 2006-2009 Los Alamos National Security, LLC. All rights
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* reserved.
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* Copyright (c) 2006-2007 Voltaire All rights reserved.
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* Copyright (c) 2010-2012 Oracle and/or its affiliates. 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 "opal/align.h"
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#include <infiniband/verbs.h>
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#include "ompi/mca/btl/btl.h"
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BEGIN_C_DECLS
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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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uint8_t cm_seen;
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uint16_t credits;
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#if OMPI_OPENIB_PAD_HDR
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uint8_t padding[4];
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#endif
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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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typedef struct mca_btl_openib_header_coalesced_t {
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mca_btl_base_tag_t tag;
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uint32_t size;
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uint32_t alloc_size;
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#if OMPI_OPENIB_PAD_HDR
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uint8_t padding[4];
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#endif
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} mca_btl_openib_header_coalesced_t;
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#define BTL_OPENIB_HEADER_COALESCED_NTOH(h) \
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do { \
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(h).size = ntohl((h).size); \
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(h).alloc_size = ntohl((h).alloc_size); \
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} while(0)
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#define BTL_OPENIB_HEADER_COALESCED_HTON(h) \
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do { \
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(h).size = htonl((h).size); \
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(h).alloc_size = htonl((h).alloc_size); \
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} while(0)
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#if OMPI_OPENIB_PAD_HDR
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/* BTL_OPENIB_FTR_PADDING
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* This macro is used to keep the pointer to openib footers aligned for
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* systems like SPARC64 that take a big performance hit when addresses
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* are not aligned (and by default sigbus instead of coercing the type on
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* an unaligned address).
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*
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* We assure alignment of a packet's structures when OMPI_OPENIB_PAD_HDR
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* is set to 1. When this is the case then several structures are padded
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* to assure alignment and the mca_btl_openib_footer_t structure itself
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* will uses the BTL_OPENIB_FTR_PADDING macro to shift the location of the
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* pointer to assure proper alignment after the PML Header and data.
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* For example sending a 1 byte data packet the memory layout without
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* footer alignment would look something like the following:
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*
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* 0x00 : mca_btl_openib_coalesced_header_t (12 bytes + 4 byte pad)
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* 0x10 : mca_btl_openib_control_header_t (1 byte + 7 byte pad)
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* 0x18 : mca_btl_openib_header_t (4 bytes + 4 byte pad)
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* 0x20 : PML Header and data (16 bytes PML + 1 byte data)
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* 0x29 : mca_btl_openib_footer_t (4 bytes + 4 byte pad)
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* 0x31 : end of packet
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*
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* By applying the BTL_OPENIB_FTR_PADDING() in the progress_one_device
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* and post_send routines we adjust the pointer to mca_btl_openib_footer_t
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* from 0x29 to 0x2C thus correctly aligning the start of the
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* footer pointer. This adjustment will cause the padding field of
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* mca_btl_openib_footer_t to overlap with the neighboring memory but since
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* we never use the padding we do not end up inadvertently overwriting
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* memory that does not belong to the fragment.
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*/
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#define BTL_OPENIB_FTR_PADDING(size) \
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OPAL_ALIGN_PAD_AMOUNT(size, sizeof(uint64_t))
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/* BTL_OPENIB_ALIGN_COALESCE_HDR
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* This macro is used in btl_openib.c, while creating a coalesce fragment,
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* to align the coalesce headers.
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*/
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#define BTL_OPENIB_ALIGN_COALESCE_HDR(ptr) \
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OPAL_ALIGN_PTR(ptr, sizeof(uint32_t), unsigned char*)
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/* BTL_OPENIB_COALESCE_HDR_PADDING
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* This macro is used in btl_openib_component.c, while parsing an incoming
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* coalesce fragment, to determine the padding amount used to align the
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* mca_btl_openib_coalesce_hdr_t.
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*/
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#define BTL_OPENIB_COALESCE_HDR_PADDING(ptr) \
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OPAL_ALIGN_PAD_AMOUNT(ptr, sizeof(uint32_t))
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#else
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#define BTL_OPENIB_FTR_PADDING(size) 0
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#define BTL_OPENIB_ALIGN_COALESCE_HDR(ptr) ptr
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#define BTL_OPENIB_COALESCE_HDR_PADDING(ptr) 0
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#endif
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struct mca_btl_openib_footer_t {
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#if OPAL_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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#if OMPI_OPENIB_PAD_HDR
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#if OPAL_ENABLE_DEBUG
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/* this footer needs to be of a 8-byte multiple so by adding the
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* seq field you throw this off and you cannot just remove the
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* padding because the padding is needed in order to adjust the alignment
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* and not overwrite other packets.
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*/
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uint8_t padding[12];
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#else
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uint8_t padding[8];
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#endif
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#endif
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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 OPAL_ENABLE_DEBUG
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#define BTL_OPENIB_FOOTER_SEQ_HTON(h) ((h).seq = htonl((h).seq))
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#define BTL_OPENIB_FOOTER_SEQ_NTOH(h) ((h).seq = ntohl((h).seq))
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#else
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#define BTL_OPENIB_FOOTER_SEQ_HTON(h)
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#define BTL_OPENIB_FOOTER_SEQ_NTOH(h)
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#endif
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#define BTL_OPENIB_FOOTER_HTON(h) \
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do { \
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BTL_OPENIB_FOOTER_SEQ_HTON(h); \
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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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BTL_OPENIB_FOOTER_SEQ_NTOH(h); \
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MCA_BTL_OPENIB_FTR_SIZE_REVERSE(h); \
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} while (0)
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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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#define MCA_BTL_OPENIB_CONTROL_COALESCED 2
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#define MCA_BTL_OPENIB_CONTROL_CTS 3
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#if BTL_OPENIB_FAILOVER_ENABLED
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#define MCA_BTL_OPENIB_CONTROL_EP_BROKEN 4
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#define MCA_BTL_OPENIB_CONTROL_EP_EAGER_RDMA_ERROR 5
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#endif
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struct mca_btl_openib_control_header_t {
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uint8_t type;
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#if OMPI_OPENIB_PAD_HDR
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uint8_t padding[7];
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#endif
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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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uint32_t rkey;
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ompi_ptr_t rdma_start;
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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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} 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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} 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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#if OMPI_OPENIB_PAD_HDR
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uint8_t padding[1];
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#endif
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uint8_t qpn;
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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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(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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(h).rdma_credits = ntohs((h).rdma_credits); \
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} while (0)
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#if BTL_OPENIB_FAILOVER_ENABLED
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struct mca_btl_openib_broken_connection_header_t {
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mca_btl_openib_control_header_t control;
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uint32_t lid;
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uint64_t subnet_id;
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uint32_t vpid;
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uint32_t index; /* for eager RDMA only */
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};
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typedef struct mca_btl_openib_broken_connection_header_t mca_btl_openib_broken_connection_header_t;
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#define BTL_OPENIB_BROKEN_CONNECTION_HEADER_HTON(h) \
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do { \
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(h).lid = htonl((h).lid); \
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(h).subnet_id = hton64((h).subnet_id); \
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(h).vpid = htonl((h).vpid); \
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(h).index = htonl((h).index); \
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} while (0)
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#define BTL_OPENIB_BROKEN_CONNECTION_HEADER_NTOH(h) \
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do { \
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(h).lid = ntohl((h).lid); \
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(h).subnet_id = ntoh64((h).subnet_id); \
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(h).vpid = ntohl((h).vpid); \
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(h).index = ntohl((h).index); \
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} while (0)
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#endif
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enum mca_btl_openib_frag_type_t {
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MCA_BTL_OPENIB_FRAG_RECV,
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MCA_BTL_OPENIB_FRAG_RECV_USER,
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MCA_BTL_OPENIB_FRAG_SEND,
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MCA_BTL_OPENIB_FRAG_SEND_USER,
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MCA_BTL_OPENIB_FRAG_EAGER_RDMA,
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MCA_BTL_OPENIB_FRAG_CONTROL,
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MCA_BTL_OPENIB_FRAG_COALESCED
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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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#define openib_frag_type(f) (to_base_frag(f)->type)
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/**
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* IB fragment derived type.
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*/
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typedef struct mca_btl_openib_segment_t {
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mca_btl_base_segment_t base;
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uint32_t key;
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} mca_btl_openib_segment_t;
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/* base openib frag */
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typedef struct mca_btl_openib_frag_t {
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mca_btl_base_descriptor_t base;
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mca_btl_openib_segment_t segment;
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mca_btl_openib_frag_type_t type;
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ompi_free_list_t* list;
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} mca_btl_openib_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_frag_t);
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#define to_base_frag(f) ((mca_btl_openib_frag_t*)(f))
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/* frag used for communication */
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typedef struct mca_btl_openib_com_frag_t {
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mca_btl_openib_frag_t super;
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struct ibv_sge sg_entry;
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struct mca_btl_openib_reg_t *registration;
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struct mca_btl_base_endpoint_t *endpoint;
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/* number of unsignaled frags sent before this frag. */
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uint32_t n_wqes_inflight;
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} mca_btl_openib_com_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_com_frag_t);
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#define to_com_frag(f) ((mca_btl_openib_com_frag_t*)(f))
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typedef struct mca_btl_openib_out_frag_t {
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mca_btl_openib_com_frag_t super;
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struct ibv_send_wr sr_desc;
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} mca_btl_openib_out_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_out_frag_t);
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#define to_out_frag(f) ((mca_btl_openib_out_frag_t*)(f))
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typedef struct mca_btl_openib_com_frag_t mca_btl_openib_in_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_in_frag_t);
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#define to_in_frag(f) ((mca_btl_openib_in_frag_t*)(f))
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typedef struct mca_btl_openib_send_frag_t {
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mca_btl_openib_out_frag_t super;
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mca_btl_openib_header_t *hdr, *chdr;
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mca_btl_openib_footer_t *ftr;
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uint8_t qp_idx;
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uint32_t coalesced_length;
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opal_list_t coalesced_frags;
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} mca_btl_openib_send_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_send_frag_t);
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#define to_send_frag(f) ((mca_btl_openib_send_frag_t*)(f))
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typedef struct mca_btl_openib_recv_frag_t {
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mca_btl_openib_in_frag_t super;
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mca_btl_openib_header_t *hdr;
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mca_btl_openib_footer_t *ftr;
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struct ibv_recv_wr rd_desc;
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uint8_t qp_idx;
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} mca_btl_openib_recv_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_recv_frag_t);
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#define to_recv_frag(f) ((mca_btl_openib_recv_frag_t*)(f))
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typedef struct mca_btl_openib_out_frag_t mca_btl_openib_put_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_put_frag_t);
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#define to_put_frag(f) ((mca_btl_openib_put_frag_t*)(f))
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typedef struct mca_btl_openib_get_frag_t {
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mca_btl_openib_in_frag_t super;
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struct ibv_send_wr sr_desc;
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} mca_btl_openib_get_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_get_frag_t);
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#define to_get_frag(f) ((mca_btl_openib_get_frag_t*)(f))
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typedef struct mca_btl_openib_send_frag_t mca_btl_openib_send_control_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_send_control_frag_t);
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#define to_send_control_frag(f) ((mca_btl_openib_send_control_frag_t*)(f))
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typedef struct mca_btl_openib_coalesced_frag_t {
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mca_btl_openib_frag_t super;
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mca_btl_openib_send_frag_t *send_frag;
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mca_btl_openib_header_coalesced_t *hdr;
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} mca_btl_openib_coalesced_frag_t;
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OBJ_CLASS_DECLARATION(mca_btl_openib_coalesced_frag_t);
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#define to_coalesced_frag(f) ((mca_btl_openib_coalesced_frag_t*)(f))
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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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static inline mca_btl_openib_send_control_frag_t *
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alloc_control_frag(mca_btl_openib_module_t *btl)
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{
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ompi_free_list_item_t *item;
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OMPI_FREE_LIST_WAIT_MT(&btl->device->send_free_control, item);
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return to_send_control_frag(item);
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}
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static inline uint8_t frag_size_to_order(mca_btl_openib_module_t* btl,
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size_t size)
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{
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int qp;
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for(qp = 0; qp < mca_btl_openib_component.num_qps; qp++)
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if(mca_btl_openib_component.qp_infos[qp].size >= size)
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return qp;
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return MCA_BTL_NO_ORDER;
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}
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static inline mca_btl_openib_com_frag_t *alloc_send_user_frag(void)
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{
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ompi_free_list_item_t *item;
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OMPI_FREE_LIST_GET_MT(&mca_btl_openib_component.send_user_free, item);
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return to_com_frag(item);
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}
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static inline mca_btl_openib_com_frag_t *alloc_recv_user_frag(void)
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{
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ompi_free_list_item_t *item;
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OMPI_FREE_LIST_GET_MT(&mca_btl_openib_component.recv_user_free, item);
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return to_com_frag(item);
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}
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static inline mca_btl_openib_coalesced_frag_t *alloc_coalesced_frag(void)
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{
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ompi_free_list_item_t *item;
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OMPI_FREE_LIST_GET_MT(&mca_btl_openib_component.send_free_coalesced, item);
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return to_coalesced_frag(item);
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}
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#define MCA_BTL_IB_FRAG_RETURN(frag) \
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do { \
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OMPI_FREE_LIST_RETURN_MT(to_base_frag(frag)->list, \
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(ompi_free_list_item_t*)(frag)); \
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} while(0);
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#define MCA_BTL_OPENIB_CLEAN_PENDING_FRAGS(list) \
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while(!opal_list_is_empty(list)){ \
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opal_list_item_t *frag_item; \
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frag_item = opal_list_remove_first(list); \
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MCA_BTL_IB_FRAG_RETURN(frag_item); \
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} \
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struct mca_btl_openib_module_t;
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struct mca_btl_openib_frag_init_data_t {
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uint8_t order;
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ompi_free_list_t* list;
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};
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typedef struct mca_btl_openib_frag_init_data_t mca_btl_openib_frag_init_data_t;
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void mca_btl_openib_frag_init(ompi_free_list_item_t* item, void* ctx);
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END_C_DECLS
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#endif
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