WO2022111326A1 - 一种数据传输方法、装置、电子设备和存储介质 - Google Patents

一种数据传输方法、装置、电子设备和存储介质 Download PDF

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Publication number
WO2022111326A1
WO2022111326A1 PCT/CN2021/130704 CN2021130704W WO2022111326A1 WO 2022111326 A1 WO2022111326 A1 WO 2022111326A1 CN 2021130704 W CN2021130704 W CN 2021130704W WO 2022111326 A1 WO2022111326 A1 WO 2022111326A1
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transaction layer
layer data
packet
data packet
information
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PCT/CN2021/130704
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English (en)
French (fr)
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WO2022111326A9 (zh
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于鹏
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中兴通讯股份有限公司
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Publication of WO2022111326A9 publication Critical patent/WO2022111326A9/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
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/36—Handling requests for interconnection or transfer for access to common bus or bus system
    • 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
    • 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
    • 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

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a data transmission method, apparatus, electronic device, and storage medium.
  • PCIE The high-speed serial computer expansion bus (Peripheral Component Interconnect Express, PCIE) standard is a widely used communication protocol with high reliability and high speed.
  • PCIE belongs to high-speed serial point-to-point dual-channel high-bandwidth transmission.
  • each transmitted data will include load and some non-data transmission content, which increase the extra overhead of transmission, resulting in a decrease in transmission efficiency.
  • PCIE has improved the system bus throughput, and adopted a lower number of input and output pins and a smaller physical size, which has greatly upgraded the data transmission speed.
  • the main way to improve the communication bandwidth of PCIE is to increase the rate of the physical interface.
  • the increase of the rate of the physical interface it becomes more and more difficult, and the increase of the transmission rate of PCIE enters a bottleneck period.
  • the implementation of the present application provides a data transmission method, which is applied to a sending end, and the method includes the following steps: determining at least one transaction layer data packet group having the same information in a preset header field, wherein the transaction layer data packet group Including at least one transaction layer data packet; processing the packet header corresponding to each transaction layer data packet group according to the load limit, so as to reduce the repetition times of the preset packet header field; sequentially transmitting the transaction layer in each transaction layer data packet group. packets to the receiver.
  • the embodiment of the present application also provides a data transmission method, the method is applied to the receiving end, and the method includes the following steps:
  • the embodiment of the present application also provides a data transmission device, the device is applied to the sending end, and the device includes:
  • an information grouping module configured to determine at least one transaction layer data packet group having the same information in a preset header field, wherein the transaction layer data packet group includes at least one transaction layer data packet;
  • an information compression module configured to process the packet headers corresponding to each of the transaction layer data packet groups according to the load limit, so as to reduce the repetition times of the preset packet header fields
  • the information transmission module is used for sequentially transmitting the transaction layer data packets in each of the transaction layer data packet groups to the receiving end.
  • the embodiment of the present application also provides a data transmission device, the device is applied to the receiving end, and the device includes:
  • the information receiving module is used to receive the transaction layer data packets transmitted by the sender;
  • the information processing module is configured to determine, according to the packet header, that the transaction layer data packet belongs to a spliced packet group, and then process the transaction layer data packet according to information in a preset header field corresponding to the spliced packet group.
  • the embodiment of the present application also provides an electronic device, the electronic device includes:
  • processors one or more processors
  • memory for storing one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the data transmission method as described in any one of the embodiments of the application.
  • Embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, implements the data transmission method described in any one of the embodiments of the present application.
  • FIG. 1 is a flowchart 1 of a data transmission method provided by an embodiment of the present application.
  • FIG. 2a is a schematic structural diagram 1 of a transaction layer data packet provided by an embodiment of the present application.
  • FIG. 2b is a second schematic structural diagram of a transaction layer data packet provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of a data transmission method provided by an embodiment of the present application.
  • FIG. 4 is an example diagram of a transaction layer data packet transmission provided by an embodiment of the present application.
  • FIG. 5a is a schematic structural diagram 1 of a transaction layer data packet header provided by an embodiment of the present application.
  • FIG. 5b is a second structural schematic diagram of a transaction layer data packet header provided by an embodiment of the present application.
  • FIG. 6a is a third structural schematic diagram of a transaction layer data packet header provided by an embodiment of the present application.
  • FIG. 6b is a schematic diagram of the structure of a transaction layer data packet header provided by an embodiment of the present application IV.
  • FIG. 7 is an example diagram of a transaction layer data packet transmission provided by an embodiment of the present application.
  • FIG 8 is an example diagram of another transaction layer data packet transmission provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a data transmission apparatus provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of another data transmission apparatus provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • the main purpose of the embodiments of the present application is to propose a data transmission method, device, electronic device and storage medium, aiming at realizing high transmission speed data transmission, effectively reducing the transmission proportion of non-data content, reducing additional transmission overhead, and improving data transmission. transmission efficiency.
  • the received transaction layer data packets are divided into different transaction layer data packet groups according to the information in the preset packet header fields, and the packet headers corresponding to the transaction layer data packet groups are processed based on the load limit, thereby reducing the number of transactions.
  • the number of repetitions of the packet header field is preset in the layer data packet group, and the processed transaction layer data packet groups are sent to the receiving end in turn, which realizes the fast transmission of data, reduces the transmission proportion of non-data content, and can reduce additional transmission. overhead and improve data transmission efficiency.
  • each batch of data transmission consists of a transaction layer packet (Transaction Layer Packer, TLP) header, payload, check digit, etc., and the content of the TLP header in different data transmissions will be different. Different, but most of the content of the TLP header is repeatedly sent during data transmission. According to the characteristics of PCIE transmission, it can be compressed by compressing the repetitive content of the PCIE transaction layer data packet, which can effectively reduce the proportion of non-data content and reduce Additional overhead, so as to achieve the purpose of improving the transmission efficiency of PCIE.
  • TLP Transaction Layer Packer
  • FIG. 1 is a flowchart of a data transmission method provided by an embodiment of the present application.
  • the embodiment of the present application can be used in the case of PCIE data transmission.
  • the method can be executed by the data transmission device in the embodiment of the present application.
  • the method is implemented by software and/or hardware, and can generally be integrated in the sending end.
  • the method provided by the embodiment of the present application specifically includes the following steps:
  • Step 110 Determine at least one transaction layer data packet group having the same information in the preset header field, wherein the transaction layer data packet group includes at least one transaction layer data packet.
  • the preset packet header field may be a data packet field that repeats more in the data transmission process, for example, there is a fixed field in the TLP packet header of PCIE for indicating the transmission attribute.
  • the transaction layer data packet group may include at least one transaction layer data packet. The information in the pre-packet header fields corresponding to different transaction layer data packets may be different.
  • the transaction layer data packet may be the data transmitted when the processor or other PCIE device accesses the PCIE device. The packet is encapsulated by the transaction layer, and the transaction layer data packet can be sent at all levels of the PCIE bus.
  • the information in the preset header fields of each transaction layer data packet can be compared, and the transaction layer data packets with the same information can be allocated to a transaction layer data packet group.
  • the information in the preset header fields of the transaction layer data packets included in the layer data packet group is the same. It can be understood that the transaction layer data packet group can be a group in a physical sense or a group in a logical sense. For example, the transaction layer data packet group can be stored in the same storage area, or the preset packet header fields have the same The transaction layer packet of information belongs to the transaction layer packet group.
  • Step 120 Process the packet headers corresponding to each transaction layer data packet group according to the load limit, so as to reduce the repetition times of the preset packet header fields.
  • the load limit may be the load limit for sending transaction layer data packets, which may include the size of the payload or the number of sent transaction layer data packets, etc., for example, the maximum number of concatenated packets and the payload size in the process of PCIE data transmission, etc.
  • the packet header may be the packet header of the transaction layer data packet, or may be a special reserved field attached to the carrying and transmission of control information.
  • the transaction layer data packets in the transaction layer data packet group have their The packet header, the information of the preset packet header field in the packet header of the same transaction layer data packet group is the same.
  • the number of repetitions may be the number of repeated occurrences of a pre-packet header field in a transaction layer data packet group, and the greater the number of repetitions, the more data may be repeated when the transaction layer data packet is sent.
  • the number of packet headers that need to contain complete packet header information can be determined in each transaction layer data packet group through the load limit. Since the information in the pre-packet header field in the same transaction layer data packet group is the same, it can be determined according to the load limit. Quantity processes the packet header of the transaction layer data packet, and deletes the preset packet header field, so that the repetition times of the pre-packet header field in each transaction layer data packet is reduced, and the redundant data in the data transmission process is reduced.
  • Step 130 sequentially transmit the transaction layer data packets in each transaction layer data packet group to the receiving end.
  • each transaction layer data packet group after each transaction layer data packet group is processed, the transaction layer data packet in each transaction layer data packet group may be respectively sent to the corresponding receiving end. It can be understood that each transaction layer The receivers corresponding to the data packet groups may be the same or different.
  • the received transaction layer data packets are divided into different transaction layer data packet groups according to the information in the preset packet header fields, and the packet headers corresponding to the transaction layer data packet groups are processed based on the load limit, thereby reducing the number of transactions.
  • the number of repetitions of the packet header field is preset in the layer data packet group, and the processed transaction layer data packet groups are sent to the receiving end in turn, which realizes the fast transmission of data, reduces the transmission proportion of non-data content, and can reduce additional transmission. overhead and improve data transmission efficiency.
  • the preset header fields include at least: a version Format field, a type Type field, a reserved Reserved field, a transmission priority Traffic Class field, a TD field, an EP field, and a Length field. A sort of.
  • the transaction layer data packet may specifically be a PCIE TLP in 3DW format or a PCIE TLP in 4DW format.
  • TLP of PCIE it can be seen that the 0-3 byte position of each TLP header contains information such as Fmt, Type, TC, Attr, Length, etc. These information change little during PCIE transmission.
  • the preset header field can be set to One or more of the Version Format field, Type Type field, Reserved Reserved field, Transmission Priority Traffic Class field, TD field, EP field, and Length field.
  • the non-data content can be processed by processing the preset header fields. The proportion of transmission is reduced.
  • FIG. 3 is a flowchart of a data transmission method provided by an embodiment of the present application.
  • the embodiment of the present application is a specific embodiment based on the above-mentioned embodiment of the application. Referring to FIG. 3 , the method provided by the embodiment of the present application specifically includes the following step:
  • Step 210 Extract the field information in the packet header of each transaction layer data packet according to the preset packet header field.
  • the field information may be a specific value in a preset header field.
  • the field information in the packet header of the transaction layer data packet can be extracted. It can be understood that when the data is sent, the sender can generate multiple transaction layer data at the same time. packet, the field information of the preset packet header field in the batch of transaction layer data packets can be extracted.
  • Step 220 Divide the corresponding transaction layer data packets into different transaction layer data packet groups according to the value of each field information.
  • each transaction layer data packet has its own corresponding field information, and the transaction layer data packet can be divided into multiple groups according to the value of the field information.
  • the value of the transaction layer packet grouped as a transaction layer packet group.
  • the transaction layer data packet group can be a physical group.
  • each group of transaction layer data packets with the same field information value can be stored in the same location, and the transaction layer data packet group can also be logical. Grouping, it is determined that the transaction data packets have the same value of field information, and it can be considered that the transaction data packets belong to the same transaction layer data packet group.
  • Step 230 For each transaction layer data packet group, divide the transaction layer data packets in the transaction layer data packet group into at least one concatenated packet group according to the load limit.
  • each The transaction layer data packet group is processed according to the load limit. If the size or number of transaction layer data packets included in the transaction layer data packet group exceeds the load limit, the transaction layer data packet group can be divided into multiple concatenated packet groups, each The size or number of transaction layer data packets in the spliced packet group meets the load limit requirements. If the size or number of transaction layer data packets in the transaction layer data packet package meets the load limit requirements, the transaction layer data packet group can be directly used as a splicing. package group.
  • Step 240 In each spliced packet group, the preset header field of the transaction layer data packet located at the first sending position is reserved and the preset header fields of other transaction layer data packets are deleted.
  • the field information of the preset packet header fields in the transaction layer data packets in the spliced packet group is the same, and the preset packet header fields have duplicate information, and the preset packet header fields in the transaction layer data packets in the spliced packet group can be processed. Deleting the duplicate preset header fields can retain the preset header fields of the transaction layer data packets that are in the first sending position in the concatenated packet group, and delete the preset packet header fields of other transaction layer data packets in the concatenated packet.
  • Step 250 For each transaction layer data packet group, send the packet header and payload of the included transaction layer data packet to the corresponding receiving end according to the concatenated packet group.
  • the packet header and payload of the transaction layer data packets in each transaction layer data packet group may be sent to the receiving end respectively, wherein the packet header and the payload may be sent separately during the sending process, for example, multiple transaction layers
  • the header of the data packet can be sent first, and then the corresponding payload is sent.
  • FIG. 4 is an example diagram of sending a transaction layer data packet provided by an embodiment of the present application. Referring to FIG. 4 , the packet headers of the transaction layer data packets may be sent in batches, and then the corresponding payload is sent.
  • the packet header of the data packet includes a preset packet header field, and the packet header of the subsequently sent transaction layer data packet can share the field information of the pre-packet header field, and the packet header sent in the same concatenated packet group does not include the preset packet header field.
  • Step 260 Extract the verification mode information of the preset reserved field in the transaction layer data packet, generate the verification information of the packet header and the payload according to the verification mode information, and send the verification information to the corresponding receiving end.
  • the preset reserved field may be an unoccupied field in the transaction layer data packet, and the preset reserved field may be used to identify the verification method of the transaction layer data packet, and the verification method may include different transaction layer data packet verification methods , for example, verifying each transaction layer data packet or verifying the entire concatenated packet group, etc.
  • the check information may be check code information generated through the header and payload of one or more transaction layer data packets, for example, a check code generated by Link Cyclic Redundancy Check (LCRC).
  • LCRC Link Cyclic Redundancy Check
  • the verification method of the transaction layer data packet can be identified by the preset reserved field. The user or administrator can select the corresponding verification method according to their needs, and mark the preset reserved field of the transaction layer data packet to generate the corresponding verification method.
  • Mode information when the sender generates the verification information, it can extract the verification mode information of the preset reserved field in the transaction layer data packet, process the packet header and payload of the transaction layer data packet according to the verification mode information, and generate the corresponding verification method information, the sender can send the verification information to the receiver corresponding to the transaction layer data packet.
  • the packet group deletes the pre-packet header field in the transaction layer data packet that is not the first sent, and after processing, the packet header and payload of the transaction layer data packet of the transaction layer data packet group are respectively sent to the receiving end.
  • the verification method of reserved fields generates corresponding verification information and sends it, which realizes the rapid transmission of transaction layer data packets, reduces the transmission proportion of non-data content in data packets, reduces transmission overhead, and improves the transmission efficiency of transaction layer data packets. .
  • the device addresses of the receivers corresponding to the transaction layer data packets in the spliced packet group are the same.
  • the transaction layer data packets to be processed may correspond to the receiving end of the same device address, and after the duplicate preset header fields are deleted, the transaction layer data packets in the spliced packet group can still be sent to the corresponding Receiving end. It can be understood that, since the transaction layer data packet is a data packet generated by the data packet at the transaction layer, the transaction layer data packet to be sent corresponds to the same data packet, and the corresponding device addresses of the receiving end are the same.
  • the dividing the transaction layer data packets in the transaction layer data packet group into at least one splicing packet group according to the load limit includes: obtaining the maximum number of splicing packets corresponding to the load limit. ; Divide the transaction layer data packets in each transaction layer data packet group into at least one splicing packet group according to the maximum number of splicing packets; The preset reserved fields of the transaction layer data packets belonging to each described splicing packet group are marked to Distinguish the sending position of the transaction layer data packet in the corresponding concatenated packet group.
  • the maximum number of spliced packets may be the maximum number of transaction layer data packets included in a spliced packet group, and the maximum number of spliced packets may be associated with the size of the transaction layer data packets and the size corresponding to the load limit.
  • the maximum number of transaction layer data packets that can be included in the spliced packet group may be determined according to the data size corresponding to the load limit and the size of each transaction layer data packet, and the transaction layer data packet groups are sent in the order in which they are sent.
  • the transaction layer data packets are arranged in order, and the maximum number of transaction layer data packets can be selected as splicing packets according to the order. It can be understood that when the number of transaction layer data packets in the transaction layer data packet group is less than the maximum number,
  • the entire transaction layer data packet group may be regarded as a concatenated packet group.
  • FIG. 5a and Figure 5b are respectively a schematic structural diagram of a transaction layer data packet header provided by an embodiment of the present application, see Figure 5a and Figure 5b, in the preset header A C flag bit is added to the reserved field. When the C flag bit is 1, it indicates the start of a new concatenated packet, and when the C flag bit is 0, it indicates that it is not the start of a new concatenated packet.
  • the verification information is generated according to the packet header and the load according to the verification method information in the preset verification field in the transaction layer data packet, and the corresponding reception is sent. end, including:
  • a reserved field in the transaction layer data packet can be used as a preset check field.
  • the verification method is the first verification method
  • the verification information can be generated according to the spliced packet group corresponding to each transaction layer data packet.
  • a transaction layer data packet included in the spliced packet group can be generated.
  • the LCRC check bit is sent with the last transaction layer packet sent in the concatenated packet.
  • the verification information in the preset verification field L is 1, it can be determined that the verification method is the second verification method, and verification information can be generated for each transaction layer data packet.
  • each transaction layer data packet generates an LCRC check bit, which is sent with the corresponding transaction layer data packet.
  • the two verification methods can facilitate the user to flexibly choose a strategy, and find the optimal balance point among the maximum delay latency, access efficiency, and reliability. For example, in terms of delay latency, compared with the single-packet load + LCRC transmission mode, the multi-packet load + LCRC transmission only uses one LCRC check bit.
  • FIG. 9 is a flowchart of a data transmission method provided by an embodiment of the present application.
  • the embodiment of the present application can be used in the case of PCIE data transmission.
  • the method can be executed by the data transmission device in the embodiment of the present application.
  • the method is implemented in software and/or hardware, and can generally be integrated in the receiving end.
  • the method provided by the embodiment of the present application specifically includes the following steps:
  • Step 310 Receive the transaction layer data packet transmitted by the sender.
  • the receiving end may acquire the transaction layer data packets transmitted by the transmitting end, and the received number may be one or more.
  • Step 320 It is determined according to the packet header that the transaction layer data packet belongs to a spliced packet group, and then the transaction layer data packet is processed according to information in a preset header field corresponding to the spliced packet group.
  • the packet header of the received transaction layer data packet can be processed. If the packet header contains identification information or the packet header has a complete packet header structure, it can be determined that the transaction layer data packet is in the spliced packet group.
  • the transaction layer data packet of the group can be processed by using the information of the corresponding preset header field. It can be understood that the information of the preset header word of the same spliced packet group can be derived from the transaction in the spliced packet group.
  • Layer packet for example, the first transaction layer packet sent to the receiver.
  • the transaction layer data packet is obtained by acquiring the transaction layer data packet transmitted by the sender, the splicing packet group to which it belongs is determined according to the packet header of the transaction layer data packet, and the corresponding transaction layer data packet is processed according to the pre-packet header field of the splicing packet group, so as to realize the transaction layer.
  • the efficient transmission of data packets reduces the proportion of non-data content in the transmission process and improves the efficiency of data transmission.
  • the transaction layer data packet is determined according to the packet header to belong to a spliced packet group, and the transaction layer data packet is processed according to the information in the preset header field corresponding to the spliced packet group.
  • the information in the preset header field of the packet header can be the information in the preset packet header field of the corresponding concatenated packet group, and the information in the packet header can be used to directly process the transaction layer data packet , to get the data content.
  • the transaction layer data packet lacks a preset header field, and the information in the preset header field corresponding to the spliced packet group can be used to process the transaction layer data packet to obtain the data content , it can be understood that the information in the preset header field of the spliced packet group can be used to send the transaction layer data packet whose position is the first.
  • the information of the preset header field corresponding to the spliced packet group is stored in a preset storage location.
  • the information of the preset header field of the transaction layer data packet group whose sending position is the first in the packet group can be spliced and stored in the preset storage location, and the subsequent transactions of the spliced packet group can be stored in the preset storage location.
  • Layer data packets can be processed directly using the information in the preset storage location. It can be understood that the preset storage location may specifically be a storage area of the random access memory.
  • FIG. 10 is a schematic structural diagram of a data transmission apparatus provided by an embodiment of the present application, which can execute the data transmission method provided by any embodiment of the present application, and has functional modules and beneficial effects corresponding to the execution method.
  • the apparatus may be implemented by software and/or hardware, and is generally integrated at the sending end.
  • the apparatus provided in this embodiment of the present application specifically includes: an information grouping module 410 , an information compression module 420 , and an information transmission module 430 .
  • the information grouping module 410 is configured to determine at least one transaction layer data packet group having the same information in a preset header field, wherein the transaction layer data packet group includes at least one transaction layer data packet.
  • the information compression module 420 is configured to process the packet headers corresponding to each of the transaction layer data packet groups according to the load limit, so as to reduce the repetition times of the preset packet header fields.
  • the information transmission module 430 is configured to sequentially transmit the transaction layer data packets in each of the transaction layer data packet groups to the receiving end.
  • the information grouping module divides the received transaction layer data packets into different transaction layer data packet groups according to the information in the preset packet header fields, and the information compression module restricts the packet headers corresponding to the transaction layer data packet groups based on the load limit. Perform processing to reduce the repetition times of the preset packet header fields in each transaction layer data packet group.
  • the information transmission module sends the processed transaction layer data packet groups to the receiving end in turn, realizing fast data transmission and reducing non-data content. It can reduce the extra transmission overhead and improve the data transmission efficiency.
  • the preset header fields in the information grouping module 410 at least include: version Format field, type Type field, reserved Reserved field, transmission priority Traffic Class field, TD field, EP One of the Length field and the Length field.
  • the information grouping module 410 includes:
  • the information extraction unit is configured to extract the field information in the packet header of each transaction layer data packet according to the preset packet header field.
  • the grouping unit is configured to divide the corresponding transaction layer data packets into different transaction layer data packet groups according to the values of the field information.
  • the transaction layer data packets in the spliced packet group correspond to the same device addresses of the receiving end.
  • the information compression module 420 includes:
  • Quantity determination unit used to obtain the maximum number of concatenated packets corresponding to the load limit.
  • the grouping execution unit is configured to divide the transaction layer data packets in each transaction layer data packet group into at least one concatenated packet group according to the maximum number of concatenated packets.
  • the location identification unit is configured to identify the preset reserved fields of the transaction layer data packets belonging to each of the spliced packet groups to distinguish the sending positions of the transaction layer data packets in the corresponding spliced packet groups.
  • the information transmission module 430 includes:
  • the data packet sending unit is configured to, for each transaction layer data packet group, respectively send the packet header and load of the included transaction layer data packet to the corresponding receiving end according to the concatenated packet group.
  • the verification sending unit is used to extract the verification mode information of the preset reserved field in the transaction layer data packet, generate the verification information of the packet header and the load according to the verification mode information, and The verification information is sent to the corresponding receiver.
  • the verification sending unit includes:
  • a verification extraction unit configured to extract verification information of a preset verification field in the transaction layer data packet, wherein the preset verification field is located in a reserved field of the packet header.
  • the first verification unit is configured to generate verification information based on the concatenated packet group corresponding to the transaction layer data packet and send the verification information to the corresponding receiving end if the verification information identifies the first verification mode.
  • the second verification unit is configured to generate verification information based on the transaction layer data packet and send the verification information to the corresponding receiving end if the verification information identifies the second verification mode.
  • FIG. 11 is a schematic structural diagram of another data transmission apparatus provided by an embodiment of the present application, which can execute the data transmission method provided by any embodiment of the present application, and has functional modules and beneficial effects corresponding to the execution method.
  • the apparatus may be implemented by software and/or hardware, and is generally integrated at the receiving end.
  • the apparatus provided in this embodiment of the present application specifically includes: an information receiving module 510 and an information processing module 520 .
  • the information receiving module 510 is configured to receive the transaction layer data packets transmitted by the sender.
  • the information processing module 520 is configured to determine, according to the packet header, that the transaction layer data packet belongs to a spliced packet group, and then process the transaction layer data packet according to information in a preset header field corresponding to the spliced packet group.
  • the transaction layer data packet transmitted by the sender is acquired through the information receiving module, the information processing module determines the spliced packet group to which it belongs according to the packet header of the transaction layer data packet, and processes the corresponding transaction layer according to the pre-packet header field of the spliced packet group Data packets, realize the efficient transmission of transaction layer data packets, reduce the proportion of non-data content in the transmission process, and improve the efficiency of data transmission.
  • the information processing module 520 includes:
  • a position determining unit configured to determine the sending position of the transaction layer data packet in the concatenated packet group according to the identification information of the preset reserved field in the packet header of the transaction layer data packet.
  • the first processing unit is configured to determine that the sending position of the transaction layer data packet is the first position, then extract the information of the preset packet header field of the packet header as the information of the preset packet header field corresponding to the spliced packet group, and according to the information The transaction layer packet is processed.
  • the second processing unit is configured to determine that the sending position of the transaction layer data packet is not the first position, and then acquire the information of the preset header field corresponding to the concatenated packet group to process the transaction layer data packet.
  • the information of the preset header field corresponding to the spliced packet group in the information processing module 520 is stored in a preset storage location.
  • FIG. 12 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • the device includes a processor 60, a memory 61, an input device 62, and an output device 63; the number of processors 60 in the device may be One or more, a processor 60 is taken as an example in FIG. 12; the device processor 60, memory 61, input device 62 and output device 63 can be connected by a bus or other means, and the connection by a bus is taken as an example in FIG. 12 .
  • the memory 61 can be used to store software programs, computer-executable programs and modules, such as the modules corresponding to the data transmission device in the embodiments of the present application (the information grouping module 410, the information compression module 420 and the information transmission module). 430, or the information receiving module 510 and the information processing module 520).
  • the processor 60 executes various functional applications and data processing of the device by running the software programs, instructions and modules stored in the memory 61, that is, to implement the above-mentioned data transmission method.
  • the memory 61 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like.
  • the memory 61 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • memory 61 may further include memory located remotely from processor 60, which may be connected to the device through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the input device 62 may be used to receive input numerical or character information, and to generate key signal input related to user settings and function control of the device.
  • the output device 63 may include a display device such as a display screen.
  • Embodiments of the present application further provide a storage medium containing computer-executable instructions, where the computer-executable instructions are used to execute a data transmission method when executed by a computer processor, and the method includes:
  • the transaction layer data packet group includes at least one transaction layer data packet
  • the transaction layer data packets in each of the transaction layer data packet groups are sequentially transmitted to the receiving end. and / or,
  • the transaction layer data packet belongs to the spliced packet group, and then the transaction layer data packet is processed according to the information of the preset packet header field corresponding to the spliced packet group.
  • a storage medium containing computer-executable instructions provided by the embodiments of the present application, the computer-executable instructions of which are not limited to the above-mentioned method operations, and can also perform any of the data transmission methods provided by the embodiments of the present application. related operations.
  • the present application can be implemented by software and necessary general-purpose hardware, and of course can also be implemented by hardware, but in many cases, the former is a better implementation.
  • the technical solutions of the present application can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in a computer-readable storage medium, such as a floppy disk of a computer , read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or optical disk, etc., including several instructions to make a computer device (which can be a personal computer , server, or network device, etc.) to execute the methods described in the various embodiments of this application.
  • a computer-readable storage medium such as a floppy disk of a computer , read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or optical disk, etc.
  • the included units and modules are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized;
  • the specific names of the functional units are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components Components execute cooperatively.
  • Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit .
  • Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • Computer storage media includes both volatile and nonvolatile implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data flexible, removable and non-removable media.
  • Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

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Abstract

本申请实施例提供了一种数据传输方法、装置、电子设备和存储介质，其中，该方法包括：确定预设包头字段具有相同信息的至少一个事务层数据包组，其中，所述事务层数据包组包括至少一个事务层数据包；根据负载限制处理各所述事务层数据包组对应的包头，以降低所述预设包头字段的重复次数；依次传输各所述事务层数据包组内的事务层数据包到接收端。

Description

一种数据传输方法、装置、电子设备和存储介质
交叉引用
本申请基于申请号为“202011380696.7”、申请日为2020年11月30日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请涉及通信技术领域，尤其涉及一种数据传输方法、装置、电子设备和存储介质。
背景技术
高速串行计算机拓展总线(Peripheral Component Interconnect Express,PCIE)标准是一种应用广泛的具有高可靠性高速的通信协议，PCIE属于高速串行点对点双通道高带宽传输。PCIE传输协议中，每笔传输的数据都会包含负荷以及部分非数据传输内容，这些非数据传输内容增加了传输的额外开销，导致传输效率的下降。为了提高PCIE协议传输的速度，PCIE相比原有标准提高了系统总线吞吐量，采用更低的输入输出引脚数量和更小的物理尺寸，使得数据传输速度得到了重大升级。然而，提高PCIE的通信带宽的方式主要是通过提高物理接口的速率实现，然而随着物理接口速率的提高越来越困难，PCIE传输速率的提高进入瓶颈时期。
发明内容
本申请实施提供了一种数据传输方法，该方法应用于发送端，该方法包括以下步骤：确定预设包头字段具有相同信息的至少一个事务层数据包组，其中，所述事务层数据包组包括至少一个事务层数据包；根据负载限制处理各所述事务层数据包组对应的包头，以降低所述预设包头字段的重复次数；依次传输各 所述事务层数据包组内的事务层数据包到接收端。
本申请实施例还提供了一种数据传输方法，该方法应用于接收端，该方法包括如下步骤：
接收发送端传输的事务层数据包；根据包头确定所述事务层数据包属于拼接包组，则根据所述拼接包组对应的预设包头字段的信息处理所述事务层数据包。
本申请实施例还提供了一种数据传输装置，该装置应用于发送端，该装置包括：
信息分组模块，用于确定预设包头字段具有相同信息的至少一个事务层数据包组，其中，所述事务层数据包组包括至少一个事务层数据包；
信息压缩模块，用于根据负载限制处理各所述事务层数据包组对应的包头，以降低所述预设包头字段的重复次数；
信息传输模块，用于依次传输各所述事务层数据包组内的事务层数据包到接收端。
本申请实施例还提供了一种数据传输装置，该装置应用于接收端，该装置包括：
信息接收模块，用于接收发送端传输的事务层数据包；
信息处理模块，用于根据包头确定所述事务层数据包属于拼接包组，则根据所述拼接包组对应的预设包头字段的信息处理所述事务层数据包。
本申请实施例还提供了一种电子设备，该电子设备包括：
一个或多个处理器；
存储器，用于存储一个或多个程序；
当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如申请实施例中任一所述的数据传输方法。
本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被处理器执行时实现如本申请实施例中任一所述的数据传输方法。
附图说明
图1是本申请实施例提供的一种数据传输方法的流程图一；
图2a是本申请实施例提供的一种事务层数据包的结构示意图一；
图2b是本申请实施例提供的一种事务层数据包的结构示意图二；
图3是本申请实施例提供的一种数据传输方法的流程图；
图4是本申请实施例提供的一种事务层数据包发送的示例图；
图5a是本申请实施例提供的一种事务层数据包包头的结构示意图一；
图5b是本申请实施例提供的一种事务层数据包包头的结构示意图二；
图6a是本申请实施例提供的一种事务层数据包包头的结构示意图三；
图6b是本申请实施例提供的一种事务层数据包包头的结构示意图四
图7是本申请实施例提供的一种事务层数据包发送的示例图；
图8是本申请实施例提供的另一种事务层数据包发送的示例图；
图9是本申请实施例提供的一种数据传输方法的流程图二；
图10是本申请实施例提供的一种数据传输装置的结构示意图；
图11是本申请实施例提供的另一种数据传输装置的结构示意图；
图12是本申请实施例提供的一种电子设备的结构示意图。
具体实施方式
应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本申请的说明，其本身没有特有的意义。因此，“模块”、“部件”或“单元”可以混合地使用。
本申请实施例的主要目的在于提出一种数据传输方法、装置、电子设备和存储介质，旨在实现高传输速度的数据传输，有效降低非数据内容的传输占比，减少额外传输开销，提高数据的传输效率。
本申请实施例，通过按照预设包头字段的信息将接收到的事务层数据包分别划分到不同的事务层数据包组，基于负载限制对事务层数据包组对应的包头进行处理，降低各事务层数据包组内预设包头字段的重复次数，将处理后的各事务层数据包组依次发送到接收端，实现了数据的快速传输，降低了非数据内容的传输占比，可减少额外传输开销，提高数据的传输效率。
在PCIE的数据传输过程中，每批数据传输都包含有事务层包(Transaction Layer Packer，TLP)包头、载荷Payload、校验位等部分组成，而不同的数据传输中TLP包头的内容会有所不同，但TLP包头的大部分内容在数据传输中是重复发送的，针对PCIE传输的特点，可以通过压缩PCIE事务层数据包重复性内容的方式进行压缩，可以有效降低非数据内容的比例，降低额外开销，从而达到提高PCIE传输效率的目的。
图1是本申请实施例提供的一种数据传输方法的流程图，本申请实施例可以用于PCIE数据传输的情况，该方法可以由本申请实施例中的数据传输装置来执行，该装置可以通过软件和/或硬件的方法实现，并一般可以集成在发送端中，本申请实施例提供的方法具体包括如下步骤：
步骤110、确定预设包头字段具有相同信息的至少一个事务层数据包组，其中，事务层数据包组包括至少一个事务层数据包。
其中，预设包头字段可以数据传输过程中重复较多的数据包字段，例如，PCIE的TLP包头中的存在固定的用于指示传输属性的字段。事务层数据包组可以包括至少一个事务层数据包，不同的事务层数据包对应的预先包头字段中的信息可以不同，事务层数据包可以当处理器或者其他PCIE设备访问PCIE设备时传送的数据报文通过事务层封装的数据包，事务层数据包可以在PCIE总线的各个层次发送。
具体的，对于生成的事务层数据包，可以比较各事务层数据包的预设包头字段中的信息，可以将具有相同信息的事务层数据包分配到一个事务层数据包组中，每个事务层数据包组包括的事务层数据包的预设包头字段中的信息相同。可以理解的是，事务层数据包组可以是物理意义上的分组，也可以是逻辑意义上的分组，例如，可以将事务层数据包分组存储在相同存储区域，或者，预设包头字段具有相同信息的事务层数据包即属于事务层数据包组。
步骤120、根据负载限制处理各事务层数据包组对应的包头，以降低预设包头字段的重复次数。
其中，负载限制可以是事务层数据包发送的负载限制，可以包括有效载荷的大小或者发送事务层数据包的数量等，例如，在PCIE数据传输过程中的最大拼接包数量和有效载荷大小等，包头可以是事务层数据包的包头，可以是被 附加到用于控制信息的运载和传输的特殊保留字段，在本申请实施例中，事务层数据包组中的事务层数据包分别存在各自的包头，相同事务层数据包组的包头中的预设包头字段的信息相同。重复次数可以是一个事务层数据包组中预先包头字段的重复出现的次数，重复次数越大，发送事务层数据包时重复的数据可以越多。
具体的，可以通过负载限制在各事务层数据包组中确定出需要包含完整包头信息的包头的数量，由于在相同事务层数据包组中预先包头字段内的信息相同，可以根据负载限制确定的数量对事务层数据包的包头进行处理，删除其中的预设包头字段，使得各事务层数据包中的预先包头字段的重复次数减少，实现数据传输过程中的冗余数据的降低。
步骤130、依次传输各事务层数据包组内的事务层数据包到接收端。
在本申请实施例中，在对各事务层数据包组进行处理后，可以针对各事务层数据包组，分别发送其中的事务层数据包到对应的接收端，可以理解的是，各事务层数据包组对应的接收端可以相同也可以不同。
本申请实施例，通过按照预设包头字段的信息将接收到的事务层数据包分别划分到不同的事务层数据包组，基于负载限制对事务层数据包组对应的包头进行处理，降低各事务层数据包组内预设包头字段的重复次数，将处理后的各事务层数据包组依次发送到接收端，实现了数据的快速传输，降低了非数据内容的传输占比，可减少额外传输开销，提高数据的传输效率。
进一步的，在上述申请实施例的基础上，所述预设包头字段至少包括：版本Format字段、类型Type字段、保留Reserved字段、传输优先级Traffic Class字段、TD字段、EP字段和长度Length字段中一种。
在本申请实施例中，事务层数据包具体可以为3DW格式的PCIE TLP或者4DW格式的PCIE TLP，图2a和图2b分别是本申请实施例提供的一种事务层数据包的结构示意图，在PCIE的TLP中可以看到每个TLP header的O～3字节位置包含了Fmt、Type、TC、Attr、Length等信息，这些信息在PCIE传输时变化很小，可以将预设包头字段设置为版本Format字段、类型Type字段、保留Reserved字段、传输优先级Traffic Class字段、TD字段、EP字段和长度Length字段中一种的或者多种，可以通过对预设包头字段的处理实现非数据内容的传 输占比降低。
图3是本申请实施例提供的一种数据传输方法的流程图，本申请实施例是在上述申请实施例的基础上的具体化，参见图3，本申请实施例提供的方法，具体包括如下步骤：
步骤210、按照预设包头字段分别提取各事务层数据包的包头中的字段信息。
其中，字段信息可以是预设包头字段中的具体取值。
在本申请实施例中，在获取到事务层数据包时，可以对事务层数据包包头中的字段信息进行提取，可以理解的是，在数据发送时，发送端可以同时生成多个事务层数据包，可以对该批事务层数据包中预设包头字段的字段信息进行提取。
步骤220、按照各字段信息的取值将对应的事务层数据包划分到不同的事务层数据包组。
具体的，各事务层数据包存在自己对应的字段信息，可以按照字段信息的取值将事务层数据包分为多组，每组中字段信息的取值可以相同，可以将具有相同字段信息取值的事务层数据包分组的作为事务层数据包组。可以理解的是，事务层数据包组可以是物理上的分组，例如，可以将每组具有相同字段信息取值的事务层数据包存储到相同位置，事务层数据包组也可以是逻辑上的分组，确定出事务数据包具有相同字段信息取值，可以认为事务数据包属于相同的事务层数据包组。
步骤230、针对各事务层数据包组，按照负载限制将事务层数据包组内的事务层数据包划分到至少一个拼接包组。
在本申请实施例中，由于事务层数据包的发送需要遵循负载限制的要求，例如，在PCIE中对事务层数据包进行拼接发送的过程中需要满足credit以及Max payload size的要求，可以将各事务层数据包组按照负载限制进行处理，若事务层数据包组包括的事务层数据包的大小或者数量超过负载限制，则可以将该事务层数据包组划分为多个拼接包组，每个拼接包组中事务层数据包的大小或者数量满足负载限制要求，若事务层数据包包的事务层数据包的大小或者数量满足负载限制的要求，则可以直接将事务层数据包组作为一个拼接包组。
步骤240、在各拼接包组内，保留位于发送首位的事务层数据包的预设包头字段并删除其他的事务层数据包的预设包头字段。
具体的，拼接包组中事务层数据包中的预设包头字段的字段信息相同，预设包头字段具有重复信息，可以对拼接包组中的事务层数据包中的预设包头字段进行处理，删除重复的预设包头字段，可以保留拼接包组中处于发送首位的事务层数据包的预设包头字段，将拼接包中其他的事务层数据包的预设包头字段删除。
步骤250、针对各事务层数据包组，按照拼接包组将包括的事务层数据包的包头和负载分别发送到对应的接收端。
在本申请实施例中，可以将各事务层数据包组中的事务层数据包的包头和负载分别发送到接收端，其中，在发送过程中包头和负载可以分别发送，例如，多个事务层数据包的包头可以先发送后，再将对应的负载发送。图4是本申请实施例提供的一种事务层数据包发送的示例图，参见图4，可以先批量发送事务层数据包的包头，然后再将对应的负载发送，其中，首先发送的事务层数据包的包头中包括有预设包头字段，而后续发送的事务层数据包的包头可以共用该预先包头字段的字段信息，在相同拼接包组中发送的包头中不包括预设包头字段。
步骤260、提取事务层数据包内预设保留字段的校验方式信息，按照校验方式信息生成包头和负载的校验信息，并将校验信息发送到对应的接收端。
其中，预设保留字段可以是事务层数据包内未被占用的字段，可以使用该预设保留字段标识事务层数据包的校验方式，校验方式可以包括不同事务层数据包校验的方式，例如，对每个事务层数据包进行校验或者对整个拼接包组进行校验等。校验信息可以是通过一个或者多个事务层数据包的包头和负载生成的校验码信息，例如，链路循环冗余校验(Link Cyclic Redundancy Check,LCRC)生成的校验码。
在本申请实施例中，由于不同的校验方式可以对应不同的事务层数据包发送效率，例如，基于事务层数据包的校验，校验出错时，重传的额外时间开销较小，但是事务层数据包的数据存储开销较大；基于拼接包组的校验，校验出错时，重传的额外时间开销较大，但是事务层数据包数据存储开销较小。可以 通过预设保留字段对事务层数据包的校验方式进行标识，用户或者管理员根据需要选择对应的校验方式，并在事务层数据包的预设保留字段进行标识，生成对应的校验方式信息，在发送端生成校验信息时，可以提取事务层数据包中预设保留字段的校验方式信息，按照该校验方式信息处理事务层数据包的包头和负载，生成对应的校验信息，发送端可以将校验信息发送到事务层数据包对应的接收端。
本申请实施例，通过将提取到的事务层数据包预设包头字段中的字段信息划分到不同的事务层数据包组，按照负载限制将各事务层数据包组划分为拼接包组，针对拼接包组删除非发送首位的事务层数据包中的预先包头字段，在处理后分别将事务层数据包组的事务层数据包的包头和负载分别发送到接收端，按照各事务层数据包中预先保留字段的校验方式生成对应的校验信息并发送，实现了事务层数据包的快速发送，降低了数据包中非数据内容的传输占比，降低传输开销，提高事务层数据包的传输效率。
进一步的，在上述申请实施例的基础上，所述拼接包组内的事务层数据包对应的接收端的设备地址相同。
具体的，在本申请实施例中，进行处理的事务层数据包可以对应相同设备地址的接收端，删除重复的预设包头字段后，拼接包组中的事务层数据包仍能发送到对应的接收端。可以理解的是，由于事务层数据包是在事务层通过数据报文生成的数据包，需要发送的事务层数据包对应相同的数据报文，对应的接收端的设备地址相同。
进一步的，在上述申请实施例的基础上，所述按照负载限制将所述事务层数据包组内的事务层数据包划分到至少一个拼接包组，包括：获取负载限制对应的最大拼接包数量；按照所述最大拼接包数量将各事务层数据包组内的事务层数据包划分到至少一个拼接包组；对属于各所述拼接包组的事务层数据包的预设保留字段进行标识以区分所述事务层数据包在对应拼接包组的发送位置。
其中，最大拼接包数量可以是一个拼接包组包括的事务层数据包最多的数量，最大拼接包数量可以与事务层数据包的大小以及负载限制对应的大小相关联。
在本申请实施例中，可以根据负载限制对应的数据大小以及各事务层数据 包的大小确定出拼接包组可以包含事务层数据包的最大数量，在各事务层数据包组内按照发送顺序将事务层数据包进行排列依次，可以按照该排序依次选择最大数量的事务层数据包分别作为拼接包，可以理解的是，当事务层数据包组内事务层数据包的数量小于该最大数量时，可以将该事务层数据包组整体作为拼接包组。由于需要拼接包组中使用相同的预设包头字段的字段信息，需要确定出各事务层数据包组在拼接包组中的发送位置，可以通过标识各事务层数据包包头中预留字段形式，区分各事务层数据包在拼接包组中的位置，图5a和图5b分别是本申请实施例提供的一种事务层数据包包头的结构示意图，参见图5a和图5b，在包头的预设保留字段增加一个C标识位，该C标识位为1时表示新的拼接包的开始，该C标识位为0时表示不为新的拼接包的开始。
进一步的，在上述申请实施例的基础上，所述根据所述事务层数据包内预设校验字段内的校验方式信息根据所述包头和所述负载生成校验信息并发送对应的接收端，包括：
提取所述事务层数据包内的预设校验字段的校验信息，其中，所述预设校验字段位于包头的保留字段；若所述校验信息标识第一校验方式，则基于所述事务层数据包对应的拼接包组生成校验信息并发送到对应的接收端；若所述校验信息标识第二校验方式，则基于所述事务层数据包生成校验信息并发送到对应的接收端。
在本申请实施例中，可以将事务层数据包内的预留字段作为预设校验字段，参见图6a和图6b，当预设校验字段L中的校验信息为0时，可以确定该校验方式为第一校验方式，可以按照每个事务层数据包对应的拼接包组生成校验信息，例如，参见图7,可以对拼接包组中包含的事务层数据包生成一个的LCRC校验位，并随着拼接包中最后发送的事务层数据包发送。当预设校验字段L中的校验信息为1时，可以确定该校验方式为第二校验方式，可以为每个事务层数据包生成校验信息，例如，参见图8,可以为每个事务层数据包生成LCRC校验位，该校验位随着对应的事务层数据包发送。进一步的，两种校验方式可以方便用户灵活选择策略，在最大延迟latency、访问效率、可靠性之间寻找最优的平衡点。例如在延迟latency方面，相对于单包负载+LCRC传输方式，多包负载+LCRC传输只使用一个LCRC校验位，没有LCRC问题时，效率要高于 前者，但是如果LCRC问题时会导致的重传，多包传输会导致额外的时间开销，造成访问此次传输的延迟latency下降，但是从系统层面看，如果LCRC校验问题发生的概率很低，访问效率还是要优于payload较小的传输。
图9是本申请实施例提供的一种数据传输方法的流程图，本申请实施例可以用于PCIE数据传输的情况，该方法可以由本申请实施例中的数据传输装置来执行，该装置可以通过软件和/或硬件的方法实现，并一般可以集成在接收端中，本申请实施例提供的方法具体包括如下步骤：
步骤310、接收发送端传输的事务层数据包。
在本申请实施例中，接收端可以获取到发送端传输的事务层数据包，接收到的数量可以一个或者多个。
步骤320、根据包头确定所述事务层数据包属于拼接包组，则根据所述拼接包组对应的预设包头字段的信息处理所述事务层数据包。
具体的，可以对接收到的事务层数据包的包头进行处理，若包头中包含由标识信息或者包头具有完整的包头结构，可以确定该事务层数据包位于拼接包组中，对于属于相同拼接包组的事务层数据包，可以使用对应的预设包头字段的信息处理该事务层数据包，可以理解的是，相同拼接包组的预设包头字的信息可以来源于该拼接包组中的事务层数据包，例如，第一个发送到接收端的事务层数据包。本申请实施例，通过获取发送端传输的事务层数据包，根据事务层数据包的包头确定所属的拼接包组，并按照拼接包组的预先包头字段处理对应的事务层数据包，实现事务层数据包的高效传输，降低传输过程的非数据内容占比，提高数据传输效率。
进一步的，在上述申请实施例的基础上，所述根据包头确定所述事务层数据包属于拼接包组，则根据所述拼接包组对应的预设包头字段的信息处理所述事务层数据包，包括：
根据所述事务层数据包的包头中的预设保留字段的标识信息确定所述事务层数据包在拼接包组中的发送位置；确定所述事务层数据包的发送位置为首位，则提取所述包头的预设包头字段的信息作为拼接包组对应的预设包头字段的信息，并根据所述信息处理所述事务层数据包；确定所述事务层数据包的发送位置为非首位，则获取拼接包组对应的预设包头字段的信息对所述事务层数据包 进行处理。进一步的，若根据包头确定事务层数据包不属于拼接包组，则使用现有事务层数据包处理方法进行处理。例如，若包头中标记位C＝0，则确定数据包不属于拼接包组，可以直接包头信息处理对应的事务层数据包，若包头中标记位C＝1，则确定事务层数据包属于拼接包组，需要使用对应拼接包组的预设包头字段的信息处理该事务层数据包。
在本申请实施例中，可以对包头中预先保留字段进行提取获取到对应的标识信息，可以通过标识信息判断出对应的事务层数据包在拼接包组中的发送位置，例如，若标识信息L＝1,则确定该事务层数据包为拼接包组的发送首位，若标识信息L＝0，则确定该事务层数据包在拼接包组中不为发送首位。对于处于发送位置为首位的事务层数据包，则包头的预设包头字段中的信息可以为对应拼接包组的预设包头字段中的信息，可以使用包头的信息直接对事务层数据包进行处理，获取到数据内容。对于处于发送位置为非首位的事务层数据包，该事务层数据包缺少预设包头字段，可以使用拼接包组对应的预设包头字段中的信息对该事务层数据包进行处理获取到数据内容，可以理解的是，拼接包组的预设包头字段的信息可以来发送位置为首位的事务层数据包。
进一步的，在上述申请实施例的基础上，所述拼接包组对应的预设包头字段的信息存储于预设存储位置。
在本申请实施例中，在处理事务层数据包时，可以拼接包组中发送位置为首位的事务层数据包组预设包头字段的信息存储在预设存储位置，该拼接包组后续的事务层数据包可以直接使用该预设存储位置的信息进行处理。可以理解的是，预设存储位置具体可以为随机存取存储器的存储区域。
图10是本申请实施例提供的一种数据传输装置的结构示意图，可执行本申请任意实施例所提供的数据传输方法，具备执行方法相应的功能模块和有益效果。该装置可有由软件和/或硬件实现，一般集成在发送端，本申请实施例提供的装置具体包括：信息分组模块410、信息压缩模块420和信息传输模块430。
信息分组模块410，用于确定预设包头字段具有相同信息的至少一个事务层数据包组，其中，所述事务层数据包组包括至少一个事务层数据包。
信息压缩模块420，用于根据负载限制处理各所述事务层数据包组对应的包头，以降低所述预设包头字段的重复次数。
信息传输模块430，用于依次传输各所述事务层数据包组内的事务层数据包到接收端。
本申请实施例，通过信息分组模块按照预设包头字段的信息将接收到的事务层数据包分别划分到不同的事务层数据包组，信息压缩模块基于负载限制对事务层数据包组对应的包头进行处理，降低各事务层数据包组内预设包头字段的重复次数，信息传输模块将处理后的各事务层数据包组依次发送到接收端，实现了数据的快速传输，降低了非数据内容的传输占比，可减少额外传输开销，提高数据的传输效率。
进一步的，在上述申请实施例的基础上，所述信息分组模块410中的预设包头字段至少包括：版本Format字段、类型Type字段、保留Reserved字段、传输优先级Traffic Class字段、TD字段、EP字段和长度Length字段中一种。
进一步的，在上述申请实施例的基础上，所述信息分组模块410包括：
信息提取单元，用于按照所述预设包头字段分别提取各事务层数据包的包头中的字段信息。
分组单元，用于按照各所述字段信息的取值将对应的所述事务层数据包划分到不同的事务层数据包组。
进一步的，在上述申请实施例的基础上，所述拼接包组内的事务层数据包对应接收端的设备地址相同。
进一步的，在上述申请实施例的基础上，所述信息压缩模块420包括：
数量确定单元，用于获取负载限制对应的最大拼接包数量。
分组执行单元，用于按照所述最大拼接包数量将各事务层数据包组内的事务层数据包划分到至少一个拼接包组。
位置标识单元，用于对属于各所述拼接包组的事务层数据包的预设保留字段进行标识以区分所述事务层数据包在对应拼接包组的发送位置。
进一步的，在上述申请实施例的基础上，所述信息传输模块430包括：
数据包发送单元，用于针对各所述事务层数据包组，按照拼接包组将包括的事务层数据包的包头和负载分别发送到对应的接收端。
校验发送单元，用于提取所述事务层数据包内预设保留字段的校验方式信息，按照所述校验方式信息生成所述包头和所述负载的校验信息，并将所述校 验信息发送到对应的接收端。
进一步的，在上述申请实施例的基础上，所述校验发送单元，包括：
校验提取单元，用于提取所述事务层数据包内的预设校验字段的校验信息，其中，所述预设校验字段位于包头的保留字段。
第一校验单元，用于若所述校验信息标识第一校验方式，则基于所述事务层数据包对应的拼接包组生成校验信息并发送到对应的接收端。
第二校验单元，用于若所述校验信息标识第二校验方式，则基于所述事务层数据包生成校验信息并发送到对应的接收端。
图11是本申请实施例提供的另一种数据传输装置的结构示意图，可执行本申请任意实施例所提供的数据传输方法，具备执行方法相应的功能模块和有益效果。该装置可有由软件和/或硬件实现，一般集成在接收端，本申请实施例提供的装置具体包括：信息接收模块510和信息处理模块520。
信息接收模块510，用于接收发送端传输的事务层数据包。
信息处理模块520，用于根据包头确定所述事务层数据包属于拼接包组，则根据所述拼接包组对应的预设包头字段的信息处理所述事务层数据包。
本申请实施例，通过信息接收模块获取发送端传输的事务层数据包，信息处理模块根据事务层数据包的包头确定所属的拼接包组，并按照拼接包组的预先包头字段处理对应的事务层数据包，实现事务层数据包的高效传输，降低传输过程的非数据内容占比，提高数据传输效率。
进一步的，在上述申请实施例的基础上，所述信息处理模块520包括：
位置确定单元，用于根据所述事务层数据包的包头中的预设保留字段的标识信息确定所述事务层数据包在拼接包组中的发送位置。
第一处理单元，用于确定所述事务层数据包的发送位置为首位，则提取所述包头的预设包头字段的信息作为拼接包组对应的预设包头字段的信息，并根据所述信息处理所述事务层数据包。
第二处理单元，用于确定所述事务层数据包的发送位置为非首位，则获取拼接包组对应的预设包头字段的信息对所述事务层数据包进行处理。
进一步的，在上述申请实施例的基础上，所述信息处理模块520中的拼接包组对应的预设包头字段的信息存储于预设存储位置。
图12是本申请实施例提供的一种电子设备的结构示意图，如图12所示，该设备包括处理器60、存储器61、输入装置62和输出装置63；设备中处理器60的数量可以是一个或多个，图12中以一个处理器60为例；设备处理器60、存储器61、输入装置62和输出装置63可以通过总线或其他方式连接，图12中以通过总线连接为例。
存储器61作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本申请实施例中数据传输装置对应的模块(信息分组模块410、信息压缩模块420和信息传输模块430，或者，信息接收模块510和信息处理模块520)。处理器60通过运行存储在存储器61中的软件程序、指令以及模块，从而执行设备的各种功能应用以及数据处理，即实现上述的数据传输方法。
存储器61可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端的使用所创建的数据等。此外，存储器61可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器61可进一步包括相对于处理器60远程设置的存储器，这些远程存储器可以通过网络连接至设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置62可用于接收输入的数字或字符信息，以及产生与设备的用户设置以及功能控制有关的键信号输入。输出装置63可包括显示屏等显示设备。
本申请实施例还提供一种包含计算机可执行指令的存储介质，所述计算机可执行指令在由计算机处理器执行时用于执行一种数据传输方法，该方法包括：
确定预设包头字段具有相同信息的至少一个事务层数据包组，其中，所述事务层数据包组包括至少一个事务层数据包；
根据负载限制处理各所述事务层数据包组对应的包头，以降低所述预设包头字段的重复次数；
依次传输各所述事务层数据包组内的事务层数据包到接收端。和/或，
接收发送端传输的事务层数据包；
根据包头确定所述事务层数据包属于拼接包组，则根据所述拼接包组对应 的预设包头字段的信息处理所述事务层数据包。
当然,本申请实施例所提供的一种包含计算机可执行指令的存储介质,其计算机可执行指令不限于如上所述的方法操作，还可以执行本申请任意实施例所提供的数据传输方法中的相关操作。
通过以上关于实施方式的描述，所属领域的技术人员可以清楚地了解到，本申请可借助软件及必需的通用硬件来实现，当然也可以通过硬件实现，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如计算机的软盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、闪存(FLASH)、硬盘或光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
值得注意的是，上述数据传输装置的实施例中，所包括的各个单元和模块只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能单元的具体名称也只是为了便于相互区分，并不用于限制本申请的保护范围。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、设备中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。
在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或 其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
以上参照附图说明了本申请的优选实施例，并非因此局限本申请的权利范围。本领域技术人员不脱离本申请的范围和实质内所作的任何修改、等同替换和改进，均应在本申请的权利范围之内。

Claims (15)

  1. 一种数据传输方法，应用于发送端，该方法包括：
    确定预设包头字段具有相同信息的至少一个事务层数据包组，其中，所述事务层数据包组包括至少一个事务层数据包；
    根据负载限制处理各所述事务层数据包组对应的包头，以降低所述预设包头字段的重复次数；
    依次传输各所述事务层数据包组内的事务层数据包到接收端。
  2. 根据权利要求1所述的方法，其中，所述预设包头字段至少包括：版本Format字段、类型Type字段、保留Reserved字段、传输优先级Traffic Class字段、TD字段、EP字段和长度Length字段中一种。
  3. 根据权利要求1或2所述的方法，其中，所述确定预设包头字段具有相同信息的至少一个事务层数据包组，包括：
    按照所述预设包头字段分别提取各事务层数据包的包头中的字段信息；
    按照各所述字段信息的取值将对应的所述事务层数据包划分到不同的事务层数据包组。
  4. 根据权利要求1至3中任一项所述的方法，其中，所述根据负载限制处理各所述事务层数据包组对应的包头，以降低所述预设包头字段的重复次数，包括：
    针对各所述事务层数据包组，按照负载限制将所述事务层数据包组内的事务层数据包划分到至少一个拼接包组；
    在各拼接包组内，保留位于发送首位的事务层数据包的预设包头字段并删除其他的事务层数据包的预设包头字段。
  5. 根据权利要求4所述的方法，其中，所述拼接包组内的事务层数据包对应接收端的设备地址相同。
  6. 根据权利要求4或5所述的方法，其中，所述按照负载限制将所述事务层数据包组内的事务层数据包划分到至少一个拼接包组，包括：
    获取负载限制对应的最大拼接包数量；
    按照所述最大拼接包数量将各事务层数据包组内的事务层数据包划分到至少一个拼接包组；
    对属于各所述拼接包组的事务层数据包的预设保留字段进行标识以区分所述事务层数据包在对应拼接包组的发送位置。
  7. 根据权利要求4至6中任一项所述的方法，其中，所述依次传输各所述事务层数据包组内的事务层数据包到接收端，包括：
    针对各所述事务层数据包组，按照拼接包组将包括的事务层数据包的包头和负载分别发送到对应的接收端；
    提取所述事务层数据包内预设保留字段的校验方式信息，按照所述校验方式信息生成所述包头和所述负载的校验信息，并将所述校验信息发送到对应的接收端。
  8. 根据权利要求7所述的方法，其中，所述根据所述事务层数据包内预设校验字段内的校验方式信息根据所述包头和所述负载生成校验信息并发送对应的接收端，包括：
    提取所述事务层数据包内的预设校验字段的校验信息，其中，所述预设校验字段位于包头的保留字段；
    若所述校验信息标识第一校验方式，则基于所述事务层数据包对应的拼接包组生成校验信息并发送到对应的接收端；
    若所述校验信息标识第二校验方式，则基于所述事务层数据包生成校验信息并发送到对应的接收端。
  9. 一种数据传输方法，应用接收端，该方法包括：
    接收发送端传输的事务层数据包；
    根据包头确定所述事务层数据包属于拼接包组，则根据所述拼接包组对应的预设包头字段的信息处理所述事务层数据包。
  10. 根据权利要求9所述的方法，其中，所述根据包头确定所述事务层数据包属于拼接包组，则根据所述拼接包组对应的预设包头字段的信息处理所述事务层数据包，包括：
    根据所述事务层数据包的包头中的预设保留字段的标识信息确定所述事务层数据包在拼接包组中的发送位置；
    确定所述事务层数据包的发送位置为首位，则提取所述包头的预设包头字段的信息作为拼接包组对应的预设包头字段的信息，并根据所述信息处理所述 事务层数据包；
    确定所述事务层数据包的发送位置为非首位，则获取拼接包组对应的预设包头字段的信息对所述事务层数据包进行处理。
  11. 根据权利要求9或10所述的方法，其中，所述拼接包组对应的预设包头字段的信息存储于预设存储位置。
  12. 一种数据传输装置，应用于发送端，该装置包括：
    信息分组模块，用于确定预设包头字段具有相同信息的至少一个事务层数据包组，其中，所述事务层数据包组包括至少一个事务层数据包；
    信息压缩模块，用于根据负载限制处理各所述事务层数据包组对应的包头，以降低所述预设包头字段的重复次数；
    信息传输模块，用于依次传输各所述事务层数据包组内的事务层数据包到接收端。
  13. 一种数据传输装置，应用于接收端，该装置包括：
    信息接收模块，用于接收发送端传输的事务层数据包；
    信息处理模块，用于根据包头确定所述事务层数据包属于拼接包组，则根据所述拼接包组对应的预设包头字段的信息处理所述事务层数据包。
  14. 一种电子设备，所述电子设备包括：
    一个或多个处理器；
    存储器，用于存储一个或多个程序；
    当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如权利要求1至8或9至11中任一所述的数据传输方法。
  15. 一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至8或9至11中任一所述的数据传输方法。
PCT/CN2021/130704 2020-11-30 2021-11-15 一种数据传输方法、装置、电子设备和存储介质 WO2022111326A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115297198A (zh) * 2022-09-21 2022-11-04 中昊芯英(杭州)科技有限公司 数据处理方法、电路、介质和计算设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103532807A (zh) * 2013-10-12 2014-01-22 江苏华丽网络工程有限公司 一种用于pcie数据服务质量管理的技术
CN104038450A (zh) * 2013-03-04 2014-09-10 华为技术有限公司 基于pcie总线的报文传输方法与装置
CN108199864A (zh) * 2017-12-06 2018-06-22 中国航空工业集团公司西安航空计算技术研究所 一种基于PCIe事务层数据传输的带宽分配方法
US20200044895A1 (en) * 2018-08-02 2020-02-06 Xilinx, Inc. Logical transport over a fixed pcie physical transport network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104038450A (zh) * 2013-03-04 2014-09-10 华为技术有限公司 基于pcie总线的报文传输方法与装置
CN103532807A (zh) * 2013-10-12 2014-01-22 江苏华丽网络工程有限公司 一种用于pcie数据服务质量管理的技术
CN108199864A (zh) * 2017-12-06 2018-06-22 中国航空工业集团公司西安航空计算技术研究所 一种基于PCIe事务层数据传输的带宽分配方法
US20200044895A1 (en) * 2018-08-02 2020-02-06 Xilinx, Inc. Logical transport over a fixed pcie physical transport network

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115297198A (zh) * 2022-09-21 2022-11-04 中昊芯英(杭州)科技有限公司 数据处理方法、电路、介质和计算设备

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