WO2017012415A1 - 一种报文切片方法、装置及计算机可读介质 - Google Patents

一种报文切片方法、装置及计算机可读介质 Download PDF

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Publication number
WO2017012415A1
WO2017012415A1 PCT/CN2016/083907 CN2016083907W WO2017012415A1 WO 2017012415 A1 WO2017012415 A1 WO 2017012415A1 CN 2016083907 W CN2016083907 W CN 2016083907W WO 2017012415 A1 WO2017012415 A1 WO 2017012415A1
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Prior art keywords
data packet
control word
detection result
data
detecting
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PCT/CN2016/083907
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English (en)
French (fr)
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沈亚明
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深圳市中兴微电子技术有限公司
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Priority to US15/745,546 priority Critical patent/US10455064B2/en
Priority to EP16827106.2A priority patent/EP3328018B1/en
Publication of WO2017012415A1 publication Critical patent/WO2017012415A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/36—Flow control; Congestion control by determining packet size, e.g. maximum transfer unit [MTU]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/324—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/22—Parsing or analysis of headers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Definitions

  • the present invention relates to the field of data communications, and in particular, to a message slicing method, apparatus, and computer readable medium.
  • the Interlaken protocol as an interconnect protocol for high-bandwidth packet transmission, primarily increases the device interconnect bandwidth between communication devices by establishing logical connections between devices through multiple serial links.
  • the Interlaken protocol itself supports scalability and supports higher transfer rates by increasing the number of serial channels and increasing the operating frequency of the serial interface.
  • the traditional Interlaken protocol packet slicing method uses the Interlaken burst control word to divide the data packet into burst maximum BurstMax data slices, and uses the null control word when the tail length is less than the burst minimum BurstShort. filling.
  • BurstMax is related to the Interlaken user interface bit width
  • the size of BurstMax is closely related to Interlaken enhanced mode scheduling. Therefore, with the increase of the bit width of the Interlaken user interface, the traditional packet slicing method cannot guarantee the normal operation of Interlaken enhanced mode scheduling.
  • the Interlaken protocol supports enhanced mode scheduling with support bandwidths exceeding 500 Gigabits per second (Gbps), requiring the Interlaken user interface to be over 2048 bits wide.
  • Gbps gigabits per second
  • how to modify the packet slicing method to break the limitation of the Interlaken user interface bit width to BurstMax, so that Interlaken still supports enhanced mode scheduling has become a major problem in practical applications.
  • Embodiments of the present invention provide a packet slicing method, apparatus, and computer readable medium, which utilize Multiple burst control words for data packet slicing can break the limit of the Interlaken user interface bit width to the burst maximum.
  • an embodiment of the present invention provides a packet slicing method, including:
  • the first detection result is that the first burst control word is inserted when the data message satisfies the first burst control word insertion condition
  • the second detection result is that when the data message satisfies the second burst control word insertion condition, the second burst control word is inserted, and the data control word corresponding to the interface bit width is filled in units of the interface bit width;
  • the fixed bit space control word is inserted.
  • the performing the first beat detection on the data packet includes:
  • the method when the data packet is marked with a packet header, the method further includes:
  • the performing intermediate detection on the data packet includes:
  • the method further includes:
  • the method further includes:
  • an embodiment of the present invention provides a computer readable medium storing computer executable instructions, when executed, causing at least one processor to perform operations including:
  • the first detection result is that the first burst control word is inserted when the data message satisfies the first burst control word insertion condition
  • the second detection result is that when the data message satisfies the second burst control word insertion condition, the second burst control word is inserted, and the data control word corresponding to the interface bit width is filled in units of the interface bit width;
  • the fixed bit space control word is inserted.
  • the embodiment of the present invention further provides a message slicing device, where the device includes a first detecting unit, a second detecting unit, a third detecting unit, and an executing unit;
  • the first detecting unit is configured to perform a first beat detection on the data packet to obtain a first detection result
  • the second detecting unit is configured to perform intermediate beat detection on the data packet to obtain a second detection result
  • the third detecting unit is configured to perform tail tag detection on the data packet, and obtain Third test result;
  • the execution unit is configured to insert a first burst control word when the first detection result is that the data message meets a first burst control word insertion condition; and fill the interface with an interface bit width a data control word corresponding to the bit width; when the second detection result is that the data message satisfies the second burst control word insertion condition, the second burst control word is inserted, and the interface width is filled with a data control word corresponding to the interface bit width; when the third detection result is that the data message has a tail mark, the fixed bit space control word is inserted.
  • the first detecting unit includes a first detecting subunit, a second detecting subunit or a third detecting subunit;
  • the first detecting subunit is configured to detect whether the data packet carries a packet header tag
  • the second detecting subunit is configured to detect whether a channel number of the data packet changes
  • the third detecting subunit is configured to detect whether the length of the accumulated data packet corresponding to the data packet is equal to a burst maximum value.
  • the executing unit is further configured to fill the header tag when the first detecting subunit detects the data packet with a header tag.
  • the second detecting unit includes a fourth detecting subunit or a fifth detecting subunit
  • the fourth detecting subunit is configured to detect whether the length of the accumulated data packet corresponding to the data packet is equal to a burst maximum value
  • the fifth detecting subunit is configured to detect whether the enhanced mode signal corresponding to the data packet is valid.
  • the execution unit is further configured to: when the third detection result is that the data packet has a trailer mark, fill the trailer mark.
  • the execution unit is further configured to fill a null control word.
  • the technical solution provided by the embodiment of the present invention performs the first beat detection on the data packet, and obtains the first a detection result; the first detection result is that the first burst control word is inserted when the data message satisfies the first burst control word insertion condition; and the bit width corresponding to the interface is filled in the interface bit width a data control word; performing intermediate beat detection on the data packet to obtain a second detection result; and the second detection result is inserting a second burst control when the data message satisfies a second burst control word insertion condition a data control word corresponding to the interface bit width is filled in the interface bit width; the end of the data packet is detected by the end tag, and the third detection result is obtained; the third detection result is the data report When there is a trailer mark in the text, a fixed bit space control word is inserted.
  • the embodiment of the present invention uses multiple burst control words for data packet slicing, which can break the limit of the Interlaken user interface bit width to the burst maximum value, thereby providing Interlaken enhanced mode scheduling to work normally during the smooth upgrade process of the switching system. Realize the foundation.
  • FIG. 1 is a schematic flowchart of an implementation process of a packet slicing method according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a specific implementation process of a packet slicing method according to an application example of the present invention
  • FIG. 3 is a schematic diagram of packet slice effect according to an application example of the present invention.
  • FIG. 4 is a schematic structural diagram of a packet slicing apparatus according to an embodiment of the present invention.
  • the first beat detection is performed on the data packet, and the first detection result is obtained; when the first detection result is that the data packet satisfies the first burst control word insertion condition, the first burst is inserted. Transmitting a control word; filling a data control word corresponding to the interface bit width in units of interface bit width; performing intermediate beat detection on the data packet to obtain a second detection result; and the second detection result is the data When the message satisfies the second burst control word insertion condition, the second burst control word is inserted, and the data control word corresponding to the interface bit width is filled in the interface bit width; the end of the data packet is marked. Detecting, obtaining a third detection result; when the third detection result is that the data message has a tail mark, the fixed bit control word is inserted.
  • FIG. 1 is a schematic flowchart of a packet slicing method according to an embodiment of the present invention. As shown in FIG. 1 , a packet slicing method according to an embodiment of the present invention includes:
  • Step S101 Perform a first beat detection on the data packet to obtain a first detection result.
  • performing the first beat detection on the data packet includes: detecting whether the data packet carries a packet header label; or detecting whether the channel number of the data packet is changed; or detecting the accumulation corresponding to the data packet Whether the length of the data message is equal to the maximum value of the burst.
  • Step S102 The first detection result is that the first burst control word is inserted when the data message satisfies the first burst control word insertion condition;
  • the first detection result that the data message satisfies the first burst control word insertion condition includes: the data packet carries a packet header tag; or the channel number of the data packet changes; or The length of the accumulated data message corresponding to the data message is equal to the burst maximum BurstMax.
  • the data packet carries a packet header, or the channel number of the data packet changes, or the length of the accumulated data packet corresponding to the data packet is equal to the burst maximum BurstMax, the first burst is inserted.
  • Send control words when the data packet carries a packet header, or the channel number of the data packet changes, or the length of the accumulated data packet corresponding to the data packet is equal to the burst maximum BurstMax, the first burst is inserted.
  • Send control words Send control words.
  • the method when the data message packet header tag is detected, the method further includes: filling the packet header tag. Specifically, when the data message packet header tag is detected, the packet header tag may be filled while the first burst control word is inserted.
  • Step S103 filling a data control word corresponding to the interface bit width in units of interface bit widths
  • the data control word corresponding to the interface bit width is filled in units of interface bit width.
  • the data packet of the 1024-bit interface bit width corresponds to 16 data control words (8 bytes, that is, 8 Bytes), so the data control words corresponding to the 1024-bits interface bit width are sequentially filled in units of 8 Bytes.
  • Step S104 Perform an intermediate beat detection on the data packet to obtain a second detection result.
  • performing intermediate beat detection on the data packet includes detecting that the data packet corresponds to the data packet Whether the length of the accumulated data message is equal to the maximum value of the burst; or detecting whether the enhanced mode signal corresponding to the data message is valid.
  • Step S105 The second detection result is that when the data message satisfies the second burst control word insertion condition, the second burst control word is inserted, and the data corresponding to the interface bit width is filled in units of the interface bit width. Control word
  • the second detection result is that the data message satisfies the second burst control word insertion condition, that is, the length of the accumulated data packet corresponding to the data packet is equal to the maximum value of the burst, or the data packet corresponds to The enhanced mode signal is valid.
  • the second burst control word is inserted, and the interface bit width is The unit again fills the data control word corresponding to the interface bit width.
  • steps S104 to S105 may be performed cyclically according to actual needs until the data packet has a trailer mark.
  • Step S106 Perform a tail mark detection on the data packet to obtain a third detection result.
  • Step S107 When the third detection result is that the data packet has a trailer mark, the fixed bit control word is inserted.
  • the method further includes: filling the end mark.
  • the trailer tag may be filled while inserting a fixed bit control word.
  • the method may further include: filling the null control word after inserting the fixed bit space control word.
  • the length of the accumulated data message corresponding to the data message is less than the burst maximum value, it may be filled by filling the empty control word.
  • Performing the first beat detection on the data packet by using the packet slicing method according to the embodiment of the present invention Obtaining a first detection result; when the first detection result is that the data message satisfies the first burst control word insertion condition, inserting the first burst control word; filling the interface bit width in units of interface bit width Corresponding data control word; performing intermediate beat detection on the data packet to obtain a second detection result; and the second detection result is inserting the second protrusion when the data message satisfies the second burst control word insertion condition Transmitting a control word, filling a data control word corresponding to the interface bit width in an interface bit width; performing a tail mark detection on the data packet to obtain a third detection result; the third detection result is the When the data message has a trailer mark, a fixed bit space control word is inserted.
  • the embodiment of the present invention uses multiple burst control words for data packet slicing, which can break the limit of the Interlaken user interface bit width to the burst maximum value, thereby providing Interlaken enhanced mode scheduling to work normally during the smooth upgrade process of the switching system. Realize the foundation.
  • the Interlaken user-side interface has a bit width of 1024 bits, and two burst control words are used for packet slicing, wherein the 1024-bit interface bit width is used.
  • the data packet corresponds to 16 data control words (8 Bytes); as shown in FIG. 2, the packet slicing method of an application example of the present invention includes:
  • Step S201 detecting whether the data packet carries a packet header tag, or whether the channel number of the data packet changes, or whether the length of the accumulated data packet corresponding to the data packet is equal to BurstMax;
  • Step S202 when the data packet with the packet header is detected, or the channel number of the data packet is changed, or the length of the accumulated data packet corresponding to the data packet is equal to BurstMax, the subsequent step S202 is continued, otherwise Step S203 is directly executed.
  • Step S202 Insert the first burst control word B1.
  • the header tag needs to be filled while inserting the first burst control word.
  • Step S203 sequentially filling the data control words A1 to A8 corresponding to the 1024-bits interface bit width in units of 8 Bytes;
  • Step S204 detecting whether the length of the accumulated data packet corresponding to the data packet is equal to the maximum value of the burst, or whether the enhanced mode signal corresponding to the data packet is valid;
  • step S205 when it is detected that the accumulated data packet length corresponding to the data packet is equal to the burst maximum value, or the enhanced mode signal corresponding to the data packet is valid, step S205 is continued; otherwise, step S206 is directly performed.
  • Step S205 insert a second burst control word B2;
  • Step S206 sequentially filling the data control words A9 to A16 corresponding to the 1024-bits interface bit width in units of 8 Bytes;
  • Step S207 Perform a tail mark detection on the data packet to obtain a third detection result.
  • the subsequent step S208 is continued; otherwise, the subsequent step S209 is directly performed.
  • Step S208 insert a fixed bit space control word C1;
  • Step S209 Filling in the empty control word.
  • the packet slicing method shown in FIG. 3 is obtained by the packet slicing method according to an application example of the present invention.
  • A1 to A16 correspond to data control words
  • B1 and B2 respectively correspond to a first burst control word and a second burst control word
  • C1 corresponds to a fixed null control word.
  • BurstMin 128 Bytes
  • the bus interface bit width is 2048 bits
  • the message slicing method according to the embodiment of the present invention is used, and if the data packet length is 257 Bytes, it is divided into two.
  • the first beat inserts the burst control word at the B1 and B2 positions, and the second beat inserts the fixed control word C1 at the end of the package. If the data message length is 513 Bytes, when entering Interlaken in three shots, specifically, the first shot is inserted in B1.
  • the burst control word is entered, the second beat inserts the burst control word at the B1 and B2 positions, and the third beat inserts the fixed control word C1 at the end of the packet.
  • data packet slicing through multiple burst control words can break the limit of the Interlaken user interface bit width to the burst maximum value, thereby providing a basis for Interlaken enhanced mode scheduling to work normally in the smooth upgrade process of the switching system.
  • the packet slicing apparatus includes a packet slicing apparatus, and the apparatus includes a first detecting unit 401 and a second detecting unit 402.
  • the third detecting unit 403 and the executing unit 404 are schematic structural diagrams of a packet slicing apparatus according to an embodiment of the present invention.
  • the first detecting unit 401 is configured to perform a first beat detection on the data packet to obtain a first detection result
  • the second detecting unit 402 is configured to perform intermediate beat detection on the data packet to obtain a second detection result.
  • the third detecting unit 403 is configured to perform tail mark detection on the data packet to obtain a third detection result.
  • the executing unit 404 is configured to insert a first burst control word when the first detection result is that the data message meets a first burst control word insertion condition; and fill with the interface bit width a data control word corresponding to the interface bit width; when the second detection result is that the data message satisfies the second burst control word insertion condition, inserting the second burst control word, filling the interface with the bit width a data control word corresponding to the interface bit width; when the third detection result is that the data message has a tail mark, the fixed bit space control word is inserted.
  • the first detecting unit 401 includes a first detecting subunit 4011, a second detecting subunit 4012 or a third detecting subunit 4013;
  • the first detecting subunit 4011 is configured to detect whether the data packet carries a packet header tag
  • the second detecting subunit 4012 is configured to detect whether a channel number of the data packet changes.
  • the third detecting sub-unit 4013 is configured to detect whether the length of the accumulated data packet corresponding to the data packet is equal to a burst maximum value.
  • the executing unit 404 is further configured to fill the header tag when the first detecting subunit detects the data packet with a header tag.
  • the second detecting unit 402 includes a fourth detecting subunit 4021 or a fifth detecting subunit 4022;
  • the fourth detecting sub-unit 4021 is configured to detect whether the length of the accumulated data packet corresponding to the data packet is equal to a burst maximum value
  • the fifth detecting subunit 4022 is configured to detect whether the enhanced mode signal corresponding to the data packet is valid.
  • the executing unit 404 is further configured to: when the third detection result is that the data message has a trailing mark, fill the end mark.
  • the execution unit 404 is further configured to fill in a null control word.
  • Each unit and its sub-units for forming the message slicing device in the embodiment of the present invention may be implemented by a processor in a message slicing device, or may be implemented by a specific logic circuit; for example, in practical applications, Central Processing Unit (CPU), Micro Processor Unit (MPU), Digital Signal Processor (DSP), or Field Programmable Gate Array (FPGA) located in the message slicing device , Field-Programmable Gate Array) and other implementations.
  • CPU Central Processing Unit
  • MPU Micro Processor Unit
  • DSP Digital Signal Processor
  • FPGA Field Programmable Gate Array
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the present invention is directed to a method, apparatus (system), and computer program in accordance with an embodiment of the present invention
  • the flow chart and/or block diagram of the product is described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the first packet detection is performed on the data packet, and the first detection result is obtained; when the first detection result is that the data packet satisfies the first burst control word insertion condition, the first burst is inserted. a control word; filling a data control word corresponding to the interface bit width in units of interface bit width; performing intermediate beat detection on the data packet to obtain a second detection result; and the second detection result is the datagram
  • the second burst control word insertion condition is satisfied, the second burst control word is inserted, and the data control word corresponding to the interface bit width is filled in the interface bit width unit;
  • the packet end tag detection is performed according to the packet, and the third detection result is obtained.
  • the embodiment of the present invention uses multiple burst control words for data packet slicing, which can break the limit of the Interlaken user interface bit width to the burst maximum value, thereby providing Interlaken enhanced mode scheduling to work normally during the smooth upgrade process of the switching system. Realize the foundation.

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Abstract

本发明实施例提供一种报文切片方法、装置及计算机存储介质，对数据报文进行第一拍检测，得到第一检测结果；所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数据报文进行中间拍检测，得到第二检测结果；所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数据报文进行包尾标记检测，得到第三检测结果；所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。

Description

一种报文切片方法、装置及计算机可读介质 技术领域
本发明涉及数据通信领域，尤其涉及一种报文切片方法、装置及计算机可读介质。
背景技术
目前，Interlaken协议，作为一项实现高带宽包传输的互连协议，主要通过多个串行链接在器件间建立逻辑连接的方式来提高通信设备间的设备互连带宽。Interlaken协议本身支持扩展性，通过增加串行通道数量和提高串行接口工作频率，可以支持更高的传输速率。
传统的Interlaken协议报文切片方法，是指使用Interlaken突发控制字将数据报文分割为突发最大值BurstMax的数据片，并在尾部长度不足突发最小值BurstShort的情况下使用空控制字进行填充。其中，BurstMax与Interlaken用户接口位宽相关，而BurstMax的大小又与Interlaken增强模式调度密切相关。所以，随着Interlaken用户接口位宽的提高，传统的报文切片方法无法保证Interlaken增强模式调度的正常工作。
另外，Interlaken协议支持增强模式调度，所支持带宽已超过500千兆位每秒(Gbps)，因而要求Interlaken用户接口位宽在2048比特(bits)以上。在如此大位宽接口的情况下，如何修改报文切片方法，以突破Interlaken用户接口位宽对BurstMax的限制，使得Interlaken仍然支持增强模式调度，已成为实际应用中的一大难题。
发明内容
本发明实施例提供一种报文切片方法、装置及计算机可读介质，利用 多个突发控制字进行数据报文切片，能够突破Interlaken用户接口位宽对突发最大值的限制。
本发明实施例的技术方案是这样实现的：
第一方面，本发明实施例提供一种报文切片方法，包括：
对数据报文进行第一拍检测，得到第一检测结果；
所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；
以接口位宽为单位填充与所述接口位宽对应的数据控制字；
对所述数据报文进行中间拍检测，得到第二检测结果；
所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；
对所述数据报文进行包尾标记检测，得到第三检测结果；
所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。
上述方案中，所述对数据报文进行第一拍检测，包括：
检测所述数据报文是否带包头标记；
或者，检测所述数据报文的通道号是否有变化；
或者，检测所述数据报文对应的累积数据报文长度是否等于突发最大值。
上述方案中，当检测有所述数据报文带包头标记时，所述方法还包括：
填充所述包头标记。
上述方案中，所述对所述数据报文进行中间拍检测，包括：
检测所述数据报文对应的累积数据报文长度是否等于突发最大值；
或者，检测所述数据报文对应的增强模式信号是否有效。
上述方案中，所述第三检测结果为所述数据报文存在包尾标记时，所述方法还包括：
填充所述包尾标记。
上述方案中，在所述插入固定位空控制字之后，所述方法还包括：
填充空控制字。
第二方面，本发明实施例提供一种计算机可读介质，存储有计算机可执行指令，当执行指令时，引起至少一个处理器执行包括以下的操作：
对数据报文进行第一拍检测，得到第一检测结果；
所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；
以接口位宽为单位填充与所述接口位宽对应的数据控制字；
对所述数据报文进行中间拍检测，得到第二检测结果；
所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；
对所述数据报文进行包尾标记检测，得到第三检测结果；
所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。
第三方面，本发明实施例还提供一种报文切片装置，所述装置包括第一检测单元、第二检测单元、第三检测单元和执行单元；
所述第一检测单元，配置为对数据报文进行第一拍检测，得到第一检测结果；
所述第二检测单元，配置为对所述数据报文进行中间拍检测，得到第二检测结果；
所述第三检测单元，配置为对所述数据报文进行包尾标记检测，得到 第三检测结果；
所述执行单元，配置为当所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；以接口位宽为单位填充与所述接口位宽对应的数据控制字；当所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；当所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。
上述方案中，所述第一检测单元包括第一检测子单元、第二检测子单元或第三检测子单元；
所述第一检测子单元，配置为检测所述数据报文是否带包头标记；
所述第二检测子单元，配置为检测所述数据报文的通道号是否有变化；
所述第三检测子单元，配置为检测所述数据报文对应的累积数据报文长度是否等于突发最大值。
上述方案中，所述执行单元，还配置为当所述第一检测子单元检测有所述数据报文带包头标记时，填充所述包头标记。
上述方案中，所述第二检测单元包括第四检测子单元或第五检测子单元；
所述第四检测子单元，配置为检测所述数据报文对应的累积数据报文长度是否等于突发最大值；
所述第五检测子单元，配置为检测所述数据报文对应的增强模式信号是否有效。
上述方案中，所述执行单元，还配置为当所述第三检测结果为所述数据报文存在包尾标记时，填充所述包尾标记。
上述方案中，所述执行单元，还配置为填充空控制字。
本发明实施例提供的技术方案，对数据报文进行第一拍检测，得到第 一检测结果；所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数据报文进行中间拍检测，得到第二检测结果；所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数据报文进行包尾标记检测，得到第三检测结果；所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。如此，本发明实施例利用多个突发控制字进行数据报文切片，能够突破Interlaken用户接口位宽对突发最大值的限制，从而为Interlaken增强模式调度在交换系统平滑升级过程中正常工作提供实现基础。
附图说明
图1为本发明实施例报文切片方法的实现流程示意图；
图2为本发明一应用实例报文切片方法的具体实现流程示意图；
图3为本发明一应用实例的报文切片效果图；
图4为本发明实施例报文切片装置的组成结构示意图。
具体实施方式
在本发明实施例中，对数据报文进行第一拍检测，得到第一检测结果；所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数据报文进行中间拍检测，得到第二检测结果；所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数据报文进行包尾标记检测，得到第三检测结果；所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。
下面结合附图及具体实施例对本发明再作进一步详细的说明。
图1为本发明实施例报文切片方法的实现流程示意图，如图1所示，本发明实施例报文切片方法包括：
步骤S101：对数据报文进行第一拍检测，得到第一检测结果；
具体地，对数据报文进行第一拍检测包括检测所述数据报文是否带包头标记；或者，检测所述数据报文的通道号是否有变化；或者，检测所述数据报文对应的累积数据报文长度是否等于突发最大值。
步骤S102：所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；
这里，所述第一检测结果为所述数据报文满足第一突发控制字插入条件包括：所述数据报文带包头标记；或者，所述数据报文的通道号有变化；或者，所述数据报文对应的累积数据报文长度等于突发最大值BurstMax。
相应地，当所述数据报文带包头标记，或所述数据报文的通道号有变化，或所述数据报文对应的累积数据报文长度等于突发最大值BurstMax时，插入第一突发控制字。
在一实施例中，当检测有所述数据报文带包头标记时，所述方法还包括：填充所述包头标记。具体地，当检测有所述数据报文带包头标记时，可以在插入第一突发控制字的同时填充所述包头标记。
步骤S103：以接口位宽为单位填充与所述接口位宽对应的数据控制字；
具体地，在插入第一突发控制字之后，以接口位宽为单位填充与所述接口位宽对应的数据控制字。比如，1024bits接口位宽的数据报文对应16个数据控制字(8字节，即8Bytes)，故以8Bytes为单位依次填充与所述1024bits接口位宽对应的数据控制字。
步骤S104：对所述数据报文进行中间拍检测，得到第二检测结果；
具体地，对所述数据报文进行中间拍检测包括检测所述数据报文对应 的累积数据报文长度是否等于突发最大值；或者，检测所述数据报文对应的增强模式信号是否有效。
步骤S105：所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；
这里，所述第二检测结果为所述数据报文满足第二突发控制字插入条件包括：所述数据报文对应的累积数据报文长度等于突发最大值，或所述数据报文对应的增强模式信号有效。
相应地，当所述数据报文对应的累积数据报文长度等于突发最大值，或所述数据报文对应的增强模式信号有效时，插入第二突发控制字，并以接口位宽为单位再次填充与所述接口位宽对应的数据控制字。
在一实施例中，可以根据实际需要，循环执行步骤S104～S105，直至所述数据报文存在包尾标记为止。
步骤S106：对所述数据报文进行包尾标记检测，得到第三检测结果；
步骤S107：所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。
在一实施例中，当所述第三检测结果为所述数据报文存在包尾标记时，所述方法还包括：填充所述包尾标记。具体地，当所述数据报文存在包尾标记时，可以在插入固定位空控制字的同时填充所述包尾标记。
在本发明实施例中，所述方法还可以包括：在所述插入固定位空控制字之后，填充空控制字。
具体地，在所述插入固定位空控制字之后，若所述数据报文对应的累积数据报文长度小于突发最大值时，可以通过填充空控制字的方式加以补齐。
通过本发明实施例所述报文切片方法，对数据报文进行第一拍检测， 得到第一检测结果；所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数据报文进行中间拍检测，得到第二检测结果；所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数据报文进行包尾标记检测，得到第三检测结果；所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。如此，本发明实施例利用多个突发控制字进行数据报文切片，能够突破Interlaken用户接口位宽对突发最大值的限制，从而为Interlaken增强模式调度在交换系统平滑升级过程中正常工作提供实现基础。
图2为本发明一应用实例报文切片方法的具体实现流程示意图，为了方便描述，假定Interlaken用户侧接口位宽为1024bits，使用两个突发控制字进行报文切片，其中，1024bits接口位宽的数据报文对应16个数据控制字(8Bytes)；如图2所示，本发明一应用实例报文切片方法包括：
步骤S201：检测所述数据报文是否带包头标记，或所述数据报文的通道号是否有变化，或所述数据报文对应的累积数据报文长度是否等于BurstMax；
这里，当检测有所述数据报文带包头标记，或所述数据报文的通道号有变化，或所述数据报文对应的累积数据报文长度等于BurstMax时，继续执行后续步骤S202，否则直接执行步骤S203。
步骤S202：插入第一突发控制字B1。
这里，当所述数据报文带包头标记时，在插入第一突发控制字的同时，还需要填充所述包头标记。
步骤S203：以8Bytes为单位依次填充与所述1024bits接口位宽对应的数据控制字A1～A8；
步骤S204：检测所述数据报文对应的累积数据报文长度是否等于突发最大值，或所述数据报文对应的增强模式信号是否有效；
这里，当检测有所述数据报文对应的累积数据报文长度等于突发最大值，或所述数据报文对应的增强模式信号有效时，继续执行步骤S205，否则，直接执行步骤S206。
步骤S205：插入第二突发控制字B2；
步骤S206：以8Bytes为单位依次填充与所述1024bits接口位宽对应的数据控制字A9～A16；
步骤S207：对所述数据报文进行包尾标记检测，得到第三检测结果；
这里，当所述第三检测结果为所述数据报文存在包尾标记时，继续执行后续步骤S208；否则，直接执行后续步骤S209。
步骤S208：插入固定位空控制字C1；
这里，在插入固定位空控制字C1的同时，还需要填充所述包尾标记。
步骤S209：填充空控制字。
具体地，在所述插入固定位空控制字之后，为了满足报文切片对应突发最大值BurstMax的要求，若所述数据报文对应的累积数据报文长度小于突发最大值时，可以通过填充空控制字的方式加以补齐。
通过本发明一应用实例所述报文切片方法，得到如图3所示的报文切片效果图。如图3所示，A1～A16对应数据控制字，B1和B2分别对应第一突发控制字和第二突发控制字，C1对应固定空控制字。在一示例中，当Interlaken数据报文对应BurstMax＝256Bytes，BurstMin＝128Bytes的增强模式，总线接口位宽2048bit时，利用本发明实施例所述报文切片方法，如果数据报文长度257Bytes，分两拍进入Interlaken时，具体地，第一拍分别在B1和B2位置插入突发控制字，第二拍在包尾插入固定控制字C1。如果数据报文长度513Bytes，分三拍进入Interlaken时，具体地，第一拍在B1插 入突发控制字，第二拍在B1和B2位置插入突发控制字，第三拍在包尾插入固定控制字C1。
如此，通过多个突发控制字进行数据报文切片，能够突破Interlaken用户接口位宽对突发最大值的限制，从而为Interlaken增强模式调度在交换系统平滑升级过程中正常工作提供实现基础。
图4为本发明实施例报文切片装置的组成结构示意图，如图4所示，所述报文切片装置包括报文切片装置，所述装置包括第一检测单元401、第二检测单元402、第三检测单元403和执行单元404。
所述第一检测单元401，配置为对数据报文进行第一拍检测，得到第一检测结果；
所述第二检测单元402，配置为对所述数据报文进行中间拍检测，得到第二检测结果；
所述第三检测单元403，配置为对所述数据报文进行包尾标记检测，得到第三检测结果；
所述执行单元404，配置为当所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；以接口位宽为单位填充与所述接口位宽对应的数据控制字；当所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；当所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。
在一实施例中，如图4所示，所述第一检测单元401包括第一检测子单元4011、第二检测子单元4012或第三检测子单元4013；
所述第一检测子单元4011，配置为检测所述数据报文是否带包头标记；
所述第二检测子单元4012，配置为检测所述数据报文的通道号是否有变化；
所述第三检测子单元4013，配置为检测所述数据报文对应的累积数据报文长度是否等于突发最大值。
在一实施例中，所述执行单元404，还配置为当所述第一检测子单元检测有所述数据报文带包头标记时，填充所述包头标记。
在一实施例中，所述第二检测单元402包括第四检测子单元4021或第五检测子单元4022；
所述第四检测子单元4021，配置为检测所述数据报文对应的累积数据报文长度是否等于突发最大值；
所述第五检测子单元4022，配置为检测所述数据报文对应的增强模式信号是否有效。
在一实施例中，所述执行单元404，还配置为当所述第三检测结果为所述数据报文存在包尾标记时，填充所述包尾标记。
在一实施例中，所述执行单元404，还配置为填充空控制字。
本发明实施例用于组成所述报文切片装置的各单元及其子单元均可以通过报文切片装置中的处理器实现，也可以通过具体的逻辑电路实现；比如，在实际应用中，可由位于所述报文切片装置的中央处理器(CPU，Central Processing Unit)、微处理器(MPU，Micro Processor Unit)、数字信号处理器(DSP，Digital Signal Processor)、或现场可编程门阵列(FPGA，Field－Programmable Gate Array)等实现。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序 产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。
工业实用性
本发明实施例中，对数据报文进行第一拍检测，得到第一检测结果；所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数据报文进行中间拍检测，得到第二检测结果；所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；对所述数 据报文进行包尾标记检测，得到第三检测结果；所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。如此，本发明实施例利用多个突发控制字进行数据报文切片，能够突破Interlaken用户接口位宽对突发最大值的限制，从而为Interlaken增强模式调度在交换系统平滑升级过程中正常工作提供实现基础。

Claims (13)

  1. 一种报文切片方法，所述方法包括：
    对数据报文进行第一拍检测，得到第一检测结果；
    所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；
    以接口位宽为单位填充与所述接口位宽对应的数据控制字；
    对所述数据报文进行中间拍检测，得到第二检测结果；
    所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；
    对所述数据报文进行包尾标记检测，得到第三检测结果；
    所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。
  2. 根据权利要求1所述的方法，其中，所述对数据报文进行第一拍检测，包括：
    检测所述数据报文是否带包头标记；
    或者，检测所述数据报文的通道号是否有变化；
    或者，检测所述数据报文对应的累积数据报文长度是否等于突发最大值。
  3. 根据权利要求2所述的方法，其中，当检测有所述数据报文带包头标记时，所述方法还包括：
    填充所述包头标记。
  4. 根据权利要求1至3任一项所述的方法，其中，所述对所述数据报文进行中间拍检测，包括：
    检测所述数据报文对应的累积数据报文长度是否等于突发最大值；
    或者，检测所述数据报文对应的增强模式信号是否有效。
  5. 根据权利要求1至3任一项所述的方法，其中，所述第三检测结果为所述数据报文存在包尾标记时，所述方法还包括：
    填充所述包尾标记。
  6. 根据权利要求1至3任一项所述的方法，其中，在所述插入固定位空控制字之后，所述方法还包括：
    填充空控制字。
  7. 一种报文切片装置，所述装置包括第一检测单元、第二检测单元、第三检测单元和执行单元；
    所述第一检测单元，配置为对数据报文进行第一拍检测，得到第一检测结果；
    所述第二检测单元，配置为对所述数据报文进行中间拍检测，得到第二检测结果；
    所述第三检测单元，配置为对所述数据报文进行包尾标记检测，得到第三检测结果；
    所述执行单元，配置为当所述第一检测结果为所述数据报文满足第一突发控制字插入条件时，插入第一突发控制字；以接口位宽为单位填充与所述接口位宽对应的数据控制字；当所述第二检测结果为所述数据报文满足第二突发控制字插入条件时，插入第二突发控制字，以接口位宽为单位填充与所述接口位宽对应的数据控制字；当所述第三检测结果为所述数据报文存在包尾标记时，插入固定位空控制字。
  8. 根据权利要求7所述的装置，其中，所述第一检测单元包括第一检测子单元、第二检测子单元或第三检测子单元；
    所述第一检测子单元，配置为检测所述数据报文是否带包头标记；
    所述第二检测子单元，配置为检测所述数据报文的通道号是否有变化；
    所述第三检测子单元，配置为检测所述数据报文对应的累积数据报文长度是否等于突发最大值。
  9. 根据权利要求8所述的装置，其中，
    所述执行单元，还配置为当所述第一检测子单元检测有所述数据报文带包头标记时，填充所述包头标记。
  10. 根据权利要求7至9任一项所述的装置，其中，所述第二检测单元包括第四检测子单元或第五检测子单元；
    所述第四检测子单元，配置为检测所述数据报文对应的累积数据报文长度是否等于突发最大值；
    所述第五检测子单元，配置为检测所述数据报文对应的增强模式信号是否有效。
  11. 根据权利要求7至9任一项所述的装置，其中，
    所述执行单元，还配置为当所述第三检测结果为所述数据报文存在包尾标记时，填充所述包尾标记。
  12. 根据权利要求7至9任一项所述的装置，其中，
    所述执行单元，还配置为填充空控制字。
  13. 一种计算机可读介质，所述计算机可读介质中存储有可执行指令，所述可执行指令用于执行权利要求1至6任一项所述的报文切片方法。
PCT/CN2016/083907 2015-07-17 2016-05-30 一种报文切片方法、装置及计算机可读介质 WO2017012415A1 (zh)

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