CN113498510A - 一种PCIe的数据传输方法及装置 - Google Patents

一种PCIe的数据传输方法及装置 Download PDF

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Publication number
CN113498510A
CN113498510A CN202080002472.4A CN202080002472A CN113498510A CN 113498510 A CN113498510 A CN 113498510A CN 202080002472 A CN202080002472 A CN 202080002472A CN 113498510 A CN113498510 A CN 113498510A
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CN
China
Prior art keywords
tlp
field
data type
attribute information
data
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Pending
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CN202080002472.4A
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English (en)
Inventor
万蕾
鲍鹏鑫
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN113498510A publication Critical patent/CN113498510A/zh
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
    • G06F13/4221—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus being an input/output bus, e.g. ISA bus, EISA bus, PCI bus, SCSI bus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
    • G06F13/4295—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus using an embedded synchronisation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F2213/0026—PCI express

Abstract

本申请实施例公开了一种PCIe的数据传输方法及装置，其中，该方法包括第一节点获得事务层数据包TLP，其中，TLP包括TLP头、TLP扩展头和数据，TLP头包括Type字段、Fmt字段和预留比特，Type字段、Fmt字段、预留比特和TLP扩展头用于指示数据的数据类型和数据类型对应的至少一个属性信息。本申请实施例通过TLP中的Type字段、Fmt字段、预留比特和TLP扩展头指示传输数据所需要的信息，即数据的数据类型和数据类型对应的至少一个属性信息，这样可以使PCIe系统中的任两个端节点之间不通过Root也能实现通信，从而可以降低车内网的复杂度。

Description

PCT国内申请，说明书已公开。

Claims (61)

  1. PCT国内申请，权利要求书已公开。
CN202080002472.4A 2020-01-22 2020-01-22 一种PCIe的数据传输方法及装置 Pending CN113498510A (zh)

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PCT/CN2020/073921 WO2021147046A1 (zh) 2020-01-22 2020-01-22 一种PCIe的数据传输方法及装置

Publications (1)

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CN113498510A true CN113498510A (zh) 2021-10-12

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US (1) US20220374385A1 (zh)
EP (1) EP4080375A4 (zh)
CN (1) CN113498510A (zh)
WO (1) WO2021147046A1 (zh)

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CN114915499A (zh) * 2022-07-15 2022-08-16 飞腾信息技术有限公司 数据传输方法、相关装置、系统及计算机可读存储介质
CN115333861A (zh) * 2022-10-12 2022-11-11 飞腾信息技术有限公司 数据传输方法、相关设备及计算机可读存储介质

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CN112748948B (zh) * 2021-01-07 2022-06-07 苏州浪潮智能科技有限公司 PCIe switch工作模式更新方法及相关组件

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JP2013206390A (ja) * 2012-03-29 2013-10-07 Fujitsu Ltd スイッチ、情報処理装置および通信制御方法
US20160371221A1 (en) * 2015-06-22 2016-12-22 Qualcomm Incorporated Communicating transaction-specific attributes in a peripheral component interconnect express (pcie) system
CN108471384A (zh) * 2018-07-02 2018-08-31 北京百度网讯科技有限公司 用于端到端通信的报文转发的方法和装置
CN109410117A (zh) * 2018-11-05 2019-03-01 英业达科技有限公司 图形处理器系统
US10445280B2 (en) * 2016-10-12 2019-10-15 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. PCIe switch for aggregating a large number of endpoint devices

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EP3028163A4 (en) * 2013-07-31 2017-07-12 Intel Corporation A method, apparatus and system for performing management component transport protocol (mctp) communications with a universal serial bus (usb) device
US9280290B2 (en) * 2014-02-12 2016-03-08 Oracle International Corporation Method for steering DMA write requests to cache memory
US10795400B2 (en) * 2018-04-30 2020-10-06 Qualcomm Incorporated Time synchronization for clocks separated by a communication link

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013206390A (ja) * 2012-03-29 2013-10-07 Fujitsu Ltd スイッチ、情報処理装置および通信制御方法
US20160371221A1 (en) * 2015-06-22 2016-12-22 Qualcomm Incorporated Communicating transaction-specific attributes in a peripheral component interconnect express (pcie) system
US10445280B2 (en) * 2016-10-12 2019-10-15 Lenovo Enterprise Solutions (Singapore) Pte. Ltd. PCIe switch for aggregating a large number of endpoint devices
CN108471384A (zh) * 2018-07-02 2018-08-31 北京百度网讯科技有限公司 用于端到端通信的报文转发的方法和装置
CN109410117A (zh) * 2018-11-05 2019-03-01 英业达科技有限公司 图形处理器系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114915499A (zh) * 2022-07-15 2022-08-16 飞腾信息技术有限公司 数据传输方法、相关装置、系统及计算机可读存储介质
CN115333861A (zh) * 2022-10-12 2022-11-11 飞腾信息技术有限公司 数据传输方法、相关设备及计算机可读存储介质

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EP4080375A1 (en) 2022-10-26
US20220374385A1 (en) 2022-11-24
EP4080375A4 (en) 2022-12-21
WO2021147046A1 (zh) 2021-07-29

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