CN116956806A - Exchange board card based on mobile high-speed serial computer expansion bus standard module - Google Patents
Exchange board card based on mobile high-speed serial computer expansion bus standard module Download PDFInfo
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- G06F13/38—Information transfer, e.g. on bus
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- G06F13/4004—Coupling between buses
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Abstract
The invention provides a switching board card based on a mobile high-speed serial computer expansion bus standard module, which comprises: the device comprises a core board provided with an exchange chip, a logic management chip and a golden finger, and a carrier board provided with an MXM connector, an interface conversion chip and an external interface; the core board is connected with the MXM connector through a golden finger; the exchange chip is in communication connection with the logic management chip and the interface conversion chip; the interface conversion chip is in communication connection with an external interface; the external interface is used for connecting an external module; the interface conversion chip is used for carrying out signal conversion and realizing data interaction between the external interface and the exchange chip; the exchange chip is used for carrying out data exchange processing; and the logic management chip is used for configuring the signal port of the switching chip. The exchange board card is formed by connecting a core board and a carrier board. The design of the core board can be reused, and when the exchange board card is redeveloped, only the carrier board is required to be designed, so that the development workload can be reduced, and the development efficiency can be improved.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a switching board card based on a mobile high-speed serial computer expansion bus standard module.
Background
In the scene of data calculation and storage, the exchange board card is one of common components, and the exchange board card is widely applied to various devices.
The existing design method of the switch board card generally carries out overall development design on the switch board card, namely, carries out overall design of component layout and wiring, and integrates all required components on a single circuit board to obtain the required switch board card.
In the application process of the switch board card, different application requirements are always faced, and under the corresponding application requirements, the switch board card needs to be deployed with corresponding ports and the like, so that when new application requirements appear, the switch board card needs to be redeveloped and designed. Based on the design mode of the existing exchange board, when the exchange board is redesigned each time, the exchange board needs to be integrally developed and designed, and the design and development processes of all the element layout and the wiring are required to be undergone, so that the development efficiency of the exchange board is lower, and the board delivery period is longer.
Disclosure of Invention
In view of this, the embodiment of the invention provides a switch board card based on a mobile high-speed serial computer expansion bus standard module, so as to solve the problems of long design and development process and low development efficiency of the existing switch board card design mode, which requires to carry out the whole switch board card design again when facing different demands.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
a mobile high-speed serial computer expansion bus standard module based switch board card comprising:
a core board and a carrier board; the core board is provided with an exchange chip, a logic management chip and a golden finger;
the carrier plate is provided with an MXM connector, an interface conversion chip and an external interface set; the external interface set comprises a plurality of external interfaces, and the MXM connector is a connector based on a mobile high-speed serial computer expansion bus standard module MXM interface;
the core board is connected with the MXM connector through the golden finger;
the exchange chip is in communication connection with the logic management chip, and the exchange chip is in communication connection with the interface conversion chip through the MXM connector; the interface conversion chip is respectively connected with each external interface in a communication way;
each external interface is used for connecting an external module corresponding to the external interface;
the interface conversion chip is used for carrying out signal conversion on the input signals when receiving the input signals transmitted by the external interfaces in the external interface set, obtaining first data signals corresponding to the exchange chip and sending the first data signals to the exchange chip; when receiving an output signal transmitted by the exchange chip, determining a target external interface corresponding to the output signal in the external interface set, performing signal conversion on the output signal to obtain a second data signal corresponding to the target external interface, and sending the second data signal to the target external interface;
The exchange chip is used for carrying out data exchange processing on the received data signals;
the logic management chip is used for configuring the signal port of the switching chip.
In the above board card, optionally, a first power supply unit is disposed on the core board, and a second power supply unit is disposed on the carrier board;
the first power supply unit is used for supplying power to the switching chip and the logic management chip;
the second power supply unit is used for supplying power to the MXM connector and the interface conversion chip.
The above-mentioned exchange board card, optionally, the mode that the exchange chip is connected with the interface conversion chip through the MXM connector in a communication way is:
each signal port on the exchange chip is connected with the golden finger through a high-speed differential signal line corresponding to the signal port;
each signal port on the MXM connector is connected to a port on the interface conversion chip corresponding to the signal port through a high-speed differential signal line corresponding to the signal port.
In the above board card, optionally, the first data signal is a high-speed differential signal.
In the above board card, optionally, each external interface in the external interface set includes a plurality of ethernet interfaces.
The above-mentioned exchange board card, optionally, the mode that the said interface conversion chip communicates with each said ethernet interface is:
for each ethernet interface, the interface conversion chip is connected to the port corresponding to the ethernet interface through the ethernet line corresponding to the port.
In the above board card, optionally, each external interface in the external interface set includes a plurality of optical fiber interfaces.
The above-mentioned exchange board card, optionally, the mode that the said interface conversion chip communicates with each said optical fiber interface and connects is:
and for each optical fiber interface, a port corresponding to the optical fiber interface on the interface conversion chip is connected with the optical fiber interface through an optical fiber line corresponding to the port.
The above-mentioned exchange board card, optionally, the mode that exchange chip and the communication of logic management chip are connected is: the communication connection is performed based on the general purpose input/output port GPIO.
In an embodiment of the present invention, optionally, the configuring the signal port of the switch chip includes:
the on-off state of each signal port of the exchange chip is configured;
Configuring the interconnection relation of each signal port of the exchange chip;
and configuring the data transmission rate of each signal port of the switching chip.
Based on the above-mentioned embodiment of the present invention, a switch board card based on a mobile high-speed serial computer expansion bus standard module includes: a core board and a carrier board; the core board is provided with an exchange chip, a logic management chip and a golden finger; the carrier plate is provided with an MXM connector, an interface conversion chip and an external interface set; the external interface set comprises a plurality of external interfaces, and the MXM connector is a connector based on a mobile high-speed serial computer expansion bus standard module MXM interface; the core board is connected with the MXM connector through a golden finger; the exchange chip is in communication connection with the logic management chip and is in communication connection with the interface conversion chip through the MXM connector; the interface conversion chip is respectively connected with each external interface in a communication way; each external interface is used for connecting an external module corresponding to the external interface; the interface conversion chip is used for carrying out signal conversion on the input signal when receiving the input signal transmitted by the external interface, obtaining a first data signal corresponding to the exchange chip and sending the first data signal to the exchange chip; when receiving the output signal transmitted by the exchange chip, determining a target external interface corresponding to the output signal in the external interface set, performing signal conversion on the output signal to obtain a second data signal corresponding to the target external interface, and sending the second data signal to the target external interface; the exchange chip is used for carrying out data exchange processing on the received data signals; and the logic management chip is used for configuring the signal port of the switching chip. By applying the exchange board card provided by the embodiment of the invention, the exchange chip and the logic management chip can be arranged on the independent core board, and the core board is connected with the carrier board through the MXM connector, so that the exchange board card is obtained. The design of the core board can be reused, when new application requirements are generated and the exchange board card needs to be redeveloped, only the carrier board needs to be redeveloped, only the external interfaces and other objects on the carrier board need to be designed according to the requirements, the whole design development of the exchange board card is not needed, the workload in the design development process of the exchange board card can be reduced, the development efficiency of the exchange board card is improved, and the product design period is shortened. And secondly, parts which need to be redesigned in the development and design process of the exchange board card are relatively fewer, so that design errors are reduced, and risks are reduced. If design defects are found in the development and production process, only the carrier plate design is required to be modified, so that only carrier plate materials are required to be scrapped, the core plate can be detached for reuse, and the material cost can be saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an exchange board card according to an embodiment of the present invention;
fig. 2 is a schematic diagram of another structure of an exchange board card according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of an exchange board card according to an embodiment of the present invention;
fig. 4 is an exemplary diagram of a data flow in a working process of an exchange board card according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating a data flow during operation of a switch board according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating an exemplary size of a core plate according to an embodiment of the present invention;
fig. 7 is a structural example diagram of a core board according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present disclosure, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
As known from the background art, the existing exchange board card adopts an integrated design, and when the exchange board card is redeveloped each time, the integrated design development is required, so that the efficiency is low and the development period is long. Secondly, in the development and design process, the whole circuit is changed, and the signal quality of the circuit is easily affected. In addition, if design defects are found during development and production, the whole exchange board card is wasted, and design and production are required to be carried out again, so that a large amount of materials are wasted.
Therefore, the embodiment of the application provides an exchange board card based on a mobile high-speed serial computer expansion bus standard module, which is obtained by respectively arranging components of the exchange board card on a core board and a carrier board and connecting the core board and the carrier board through an MXM connector. The design of the core board can be reused, and when the exchange board card is redeveloped, only the carrier board is required to be designed, so that the development workload can be reduced, and the efficiency can be improved.
The embodiment of the invention provides a switching board card based on a mobile high-speed serial computer expansion bus standard module, the structure schematic diagram of which can be shown in figure 1, the switching board card comprises:
a core board 101 and a carrier board 102; the core board 101 is provided with a switching chip 103, a logic management chip 104 and a golden finger 105;
the carrier plate 102 is provided with an MXM connector 106, an interface conversion chip 107 and an external interface set 108; the external interface set 108 includes a plurality of external interfaces, and the MXM connector 106 is a connector based on a mobile high-speed serial computer expansion bus standard module MXM interface;
the core board 101 is connected with the MXM connector 106 through the golden finger 105;
the exchange chip 103 is in communication connection with the logic management chip 104, and the exchange chip 103 is in communication connection with the interface conversion chip 107 through the MXM connector 106; the interface conversion chip 107 is respectively connected with each external interface in a communication way;
each external interface is used for connecting an external module corresponding to the external interface;
the interface conversion chip 107 is configured to, when receiving an input signal transmitted by an external interface in the external interface set 108, perform signal conversion on the input signal to obtain a first data signal corresponding to the switch chip 103, and send the first data signal to the switch chip 103; when receiving the output signal transmitted by the switch chip 103, determining a target external interface corresponding to the output signal in the external interface set 108, performing signal conversion on the output signal to obtain a second data signal corresponding to the target external interface, and sending the second data signal to the target external interface;
The switching chip 103 is configured to perform data switching processing on the received data signal;
the logic management chip 104 is configured to configure a signal port of the switch chip.
The exchange board card provided by the embodiment of the invention is formed by connecting a core board and a carrier board.
The core board is used for bearing elements such as the exchange chip and the logic management chip, and is provided with a golden finger which is a conductive contact piece for transmitting signals, and the golden finger on the core board is used for connecting the MXM connector. The core board is also provided with corresponding circuits, so that each object with a connection relationship on the core board is interconnected, for example, a communication circuit is arranged on the core board and is connected with a certain port on the exchange chip and a certain port of the logic management chip, so that the communication connection between the exchange chip and the logic management chip is realized.
The exchange chip is a chip for data exchange processing and is provided with a plurality of signal ports of the same or different types, each signal port can provide a data transmission link, and each signal port can carry out data intercommunication through the inside of the chip. When a certain signal port of the exchange chip receives a data signal, the exchange chip can perform data exchange processing according to the intercommunication relation of the ports, and output the data signal to the corresponding signal port. The logic management chip is used for configuring the contents such as interconnection relation of the signal ports of the switching chip.
The carrier plate is provided with an MXM connector, an interface conversion chip and various external interfaces. Corresponding circuits are also arranged on the carrier plate, so that all objects with connection relation on the carrier plate are interconnected. The MXM connector is a connector based on a mobile high-speed serial computer expansion bus standard module interface, which is Mobile PCI Express Module, abbreviated as MXM. MXM is a PCI-Express interface based device interface designed for graphics processors, highest rate 16gbps, PCI-Express (Peripheral Component Interconnect Express), a high speed serial computer expansion bus standard.
Each external interface in the external interface set is set according to the application scene of the exchange board card, namely, according to the type and the number of the data interfaces of the external modules such as the computing module, the storage module and the like needing data exchange, the external interfaces with corresponding types and numbers are set for connecting each external module needing data exchange.
The interface conversion chip is used for carrying out signal conversion on the signals interacted between the external module and the exchange board card, namely carrying out signal conversion processing on the signals transmitted by the external interface when the signals transmitted by the external interface are received, converting the signals into a signal form which can be recognized and processed by the exchange chip, and then sending the converted signals to the exchange chip for processing, for example, the signals transmitted by the external interface are Ethernet signals, and the exchange chip receives high-speed differential signals, and the signal conversion operation of the interface conversion chip is to convert the Ethernet signals into the high-speed differential signals. When the interface conversion chip receives the signal sent by the exchange chip, the interface conversion chip performs signal conversion processing on the signal to be transmitted externally, specifically, a target external interface needing to transmit the signal is required to be determined, the signal is converted into a signal form which can be identified by the target external interface according to the interface type of the target external interface, the converted signal is sent to the target external interface, and the signal is sent to a corresponding external module through the target external interface.
It can be understood that the exchange board card provided by the embodiment of the invention can bear data exchange work between external modules connected with external interfaces. For example, when the external module 1 needs to transmit data to the external module 2, the external module 1 sends the data signal to be transmitted to the external interface corresponding to the external module 1, regards the data signal as an input signal of the switch board, the external interface sends the input signal to the interface conversion chip, the interface conversion chip converts the input signal into a signal format required by the switch chip, the converted data signal is transmitted to the switch chip through the MXM connector, the switch chip outputs the data signal from the corresponding port after performing corresponding processing, the data signal output by the switch chip is sent to the interface conversion chip through the MXM connector, the interface conversion chip converts the data signal into a signal format recognizable by the external interface corresponding to the external module 2 according to the type of the external interface corresponding to the external module 2, and sends the converted data signal as an output signal to the external interface corresponding to the external module 2, so as to transmit the output signal to the external module 2.
It should be noted that, the structure shown in fig. 1 is only a schematic illustration provided by the switch board card provided by the present invention, the form and position of each object shown in fig. 1 do not represent the form and position of the corresponding object in the actual scene, and fig. 1 does not show all structures on the carrier board and the core board in the actual scene.
The exchange board card provided by the embodiment of the invention comprises: a core board and a carrier board; the core board is provided with an exchange chip, a logic management chip and a golden finger; the carrier plate is provided with an MXM connector, an interface conversion chip and an external interface set, wherein the set comprises a plurality of external interfaces; the core board is connected with the MXM connector through a golden finger; the exchange chip is in communication connection with the logic management chip and is in communication connection with the interface conversion chip through the MXM connector; the interface conversion chip is in communication connection with each external interface; the external interface is used for connecting the corresponding external module; the interface conversion chip is used for converting the signal into a signal which can be identified by the exchange chip when receiving the signal transmitted by the external interface and transmitting the converted signal to the exchange chip; when receiving the signal transmitted by the exchange chip, converting the signal into a signal which can be identified by the target external interface, and transmitting the converted signal to the target external interface; the exchange chip is used for carrying out data exchange processing on the received data signals; and the logic management chip is used for configuring the signal port of the switching chip. By applying the exchange board card provided by the embodiment of the invention, the exchange chip and the logic management chip can be arranged on the independent core board, and the core board is connected with the carrier board through the MXM connector, so that the exchange board card is obtained. The design of the core board can be reused, when new application requirements are generated and the exchange board card needs to be redeveloped, only the carrier board needs to be redeveloped, only the external interfaces and other objects on the carrier board need to be designed according to the requirements, the whole design development of the exchange board card is not needed, the workload in the design development process of the exchange board card can be reduced, the development efficiency of the exchange board card is improved, and the product design period is shortened. And secondly, parts which need to be redesigned in the development and design process of the exchange board card are relatively fewer, so that design errors are reduced, and risks are reduced. If design defects are found in the development and production process, only the carrier plate design is required to be modified, so that only carrier plate materials are required to be scrapped, the core plate can be detached for reuse, and the material cost can be saved.
On the basis of the exchange board card shown in fig. 1, in the exchange board card provided by the embodiment of the invention, a first power supply unit is arranged on the core board, and a second power supply unit is arranged on the carrier board;
the first power supply unit is used for supplying power to the switching chip and the logic management chip;
the second power supply unit is used for supplying power to the MXM connector and the interface conversion chip.
In the switch board card provided by the embodiment of the invention, the core board and the carrier board are respectively provided with the power supply unit, and the power supply unit (namely the first power supply unit) on the core board supplies power to each object needing power supply on the core board, and the switch board card comprises a switch chip, a logic management chip and the like. The power supply unit (namely the second power supply unit) on the carrier plate supplies power to each object needing power supply on the carrier plate, and the power supply unit comprises an MXM connector, an interface conversion chip and the like.
Based on the exchange board card provided by the embodiment of the invention, the independent power supply units are respectively arranged on the core board and the carrier board, and when the carrier board is developed and designed, the power supply units can be correspondingly adjusted according to the power supply requirement of the carrier board, so that the exchange board card is beneficial to adapting to various application scenes.
Based on the switch board shown in fig. 1, in the switch board provided by the embodiment of the present invention, the manner in which the switch chip is communicatively connected to the interface conversion chip through the MXM connector is:
Each signal port on the exchange chip is connected with the golden finger through a high-speed differential signal line corresponding to the signal port;
each signal port on the MXM connector is connected to a port on the interface conversion chip corresponding to the signal port through a high-speed differential signal line corresponding to the signal port.
In the exchange board card provided by the embodiment of the invention, the exchange chip and the interface conversion chip realize data interaction based on the high-speed differential signals. And high-speed differential signal lines corresponding to all ports of the switching chip are deployed on the core board, each signal port on the switching chip, which is required to be communicated with the interface conversion chip, is connected with one end of the corresponding high-speed differential signal line, and the other end of the line is connected with a corresponding conductive contact piece on the golden finger. Each signal port on the MXM connector is correspondingly connected with each port on the interface conversion chip, which needs to be communicated with the exchange chip, high-speed differential signal lines corresponding to the number of ports required by practical application are also deployed on the carrier board, and the signal port on the MXM connector is connected with the corresponding port on the interface conversion chip through the corresponding high-speed differential signal lines.
Based on the switch board provided in the foregoing embodiment, in the switch board provided in the embodiment of the present invention, the first data signal is a high-speed differential signal.
In the switch board card provided by the embodiment of the invention, the interface conversion chip and the switch chip are in communication with each other by adopting high-speed differential signals, namely, the type of signals processed by the switch chip is the high-speed differential signals. When the interface conversion chip receives an input signal sent by an external interface, the input signal is converted by taking the high-speed differential signal as a target signal form, and the input signal is converted into a signal in the form of the high-speed differential signal, namely, a first data signal obtained through conversion is the high-speed differential signal.
Based on the switch board shown in fig. 1, in the switch board provided by the embodiment of the invention, each external interface in the external interface set includes a plurality of ethernet interfaces.
In the switch board card provided by the embodiment of the invention, each external interface arranged on the carrier board comprises a plurality of Ethernet interfaces, namely interfaces for realizing Ethernet communication, and the Ethernet interfaces can be used for connecting external modules based on the Ethernet communication.
Based on the switch board provided in the foregoing embodiment, in the switch board provided in the embodiment of the present invention, the manner in which the interface conversion chip is communicatively connected to each ethernet interface is:
For each ethernet interface, the interface conversion chip is connected to the port corresponding to the ethernet interface through the ethernet line corresponding to the port.
In the switch board card provided by the embodiment of the invention, the Ethernet lines corresponding to the number of the Ethernet interfaces are deployed on the carrier board. The Ethernet lines arranged on the carrier plate are in one-to-one correspondence with the Ethernet interfaces, each Ethernet interface is connected with one end of the corresponding Ethernet line, and the other end of the line is connected with a port corresponding to the Ethernet interface on the interface conversion chip.
Based on the switch board shown in fig. 1, in the switch board provided by the embodiment of the invention, each external interface in the external interface set includes a plurality of optical fiber interfaces.
In the switch board card provided by the embodiment of the invention, each external interface arranged on the carrier board comprises a plurality of optical fiber interfaces, wherein the optical fiber interfaces are interfaces for realizing optical fiber communication, and the optical fiber interfaces can be used for connecting external modules based on the optical fiber communication.
Based on the switch board provided in the foregoing embodiment, in the switch board provided in the embodiment of the present invention, the manner in which the interface conversion chip is communicatively connected to each of the optical fiber interfaces is:
And for each optical fiber interface, a port corresponding to the optical fiber interface on the interface conversion chip is connected with the optical fiber interface through an optical fiber line corresponding to the port.
In the switch board card provided by the embodiment of the invention, the optical fiber lines corresponding to the number of the optical fiber interfaces are deployed on the carrier board, and each optical fiber line corresponds to each optical fiber interface one by one. The optical fiber interface is connected with one end of the optical fiber circuit corresponding to the optical fiber interface, and the other end of the circuit is connected with a port corresponding to the optical fiber interface on the interface conversion chip.
It should be noted that, the types of the external interfaces mentioned in the embodiments of the present invention are only for better explaining the specific embodiments provided by the switch board card of the present invention, and in a specific application scenario, each external interface may be only a single type of interface, for example, each external interface is an ethernet interface or an optical fiber interface. Each external interface may also include multiple types of interfaces, such as multiple ethernet interfaces and multiple fiber interfaces, and other types of interfaces may also be used for the external interfaces. The types of the external interfaces on the carrier plate and the number of the external interfaces of each type can be set according to the equipment requirements, and the implementation function of the switch board card provided by the embodiment of the invention is not affected.
Based on the switch board shown in fig. 1, in the switch board provided by the embodiment of the present invention, the manner in which the switch chip is communicatively connected to the logic management chip is: the communication connection is performed based on the general purpose input/output port GPIO.
In the switch board card provided by the embodiment of the invention, the switch chip and the logic management chip are in communication connection based on the general purpose input/output port (General Purpose Input Output, GPIO).
On the basis of the switch board shown in fig. 1, in the switch board provided by the embodiment of the invention, the configuration of the signal port of the switch chip includes:
the on-off state of each signal port of the exchange chip is configured;
configuring the interconnection relation of each signal port of the exchange chip;
and configuring the data transmission rate of each signal port of the switching chip.
In the switch board card provided by the embodiment of the invention, a worker can correspondingly set the logic management chip, so that the logic management chip configures the on-off state of each signal port of the switch chip according to the configuration information, namely, each signal port is set to be in an off state or an on state. The logic management chip can configure the interconnection relation of the signal ports of the switching chip according to the configuration information, namely, which signal port is set to be communicated with which signal port. The logic management chip can also configure the data transmission rate of each signal port of the switching chip according to the configuration information.
Based on the exchange board card provided by the embodiment of the invention, the on-off state, the interconnection relation and the data transmission rate of the signal port of the exchange chip can be configured through the logic management chip, so that the core board can be adapted to different carrier boards, different application scenes can be adapted, and the multiplexing of the core board is realized. Secondly, through the configuration of the data transmission rate, the data transmission rate of the signal port of the exchange chip is consistent with the data transmission rate of the external interface, so that abnormal communication is prevented.
In order to better illustrate the switch board card provided by the embodiment of the invention, the embodiment of the invention provides another switch board card based on the mobile high-speed serial computer expansion bus standard module by combining with the actual application scene on the basis of the switch board card provided by the embodiment. The switching board card provided by the embodiment of the invention is applied to a data switching scene of the equipment computing module and the storage module, and the computing module and the storage module in the equipment mainly adopt Ethernet communication and optical fiber communication.
The schematic structural diagram of the exchange board provided by the embodiment of the invention can be shown as fig. 2, and the exchange board consists of a core board and a carrier board. The core board is internally provided with an exchange chip, a power supply unit A and a logic management chip, and the carrier board integrates the MXM connector, the interface conversion chip, the power supply unit B and an external interface. The power supply unit a is equivalent to the first power supply unit in the previous embodiment, and the power supply unit B is equivalent to the second power supply unit in the previous embodiment. The external interface in the embodiment of the invention is a simplified expression, namely, refers to an object of the type of the external interface, does not refer to a single interface, and a plurality of interfaces are deployed on an actual carrier plate.
Next, each object of the switch board provided by the embodiment of the invention is further described.
Core plate: an M6 material high speed circuit board, a high speed printed circuit board (Printed Circuit Board, PCB), is commonly referred to as a high speed PCB. M6 is an existing high-speed circuit board (high-speed PCB) that can effectively support rates above at least 16 Gbps. The core board is used for bearing the exchange chip, the power supply unit A and the logic management chip, and provides lines for interconnecting the parts.
Exchange chip: with multiple identical or different network ports for data input or output. The network port is a signal port, which is a high-speed input and output port of the switching chip. Each signal port can provide a data transmission link, each signal port can carry out data intercommunication through the inside of the chip, the intercommunication relation can be arbitrarily configured through GPIO, and meanwhile, the data transmission rate of each signal port can be arbitrarily configured to be 1Gbps or 10Gbps.
Logic management chip: and the user can configure the on-off of the ports on the exchange chip, the interconnection relation of the ports and the data transmission rate of the ports through the chip.
Power supply unit a: providing power to all devices within the core board.
And (3) carrying a plate: an M6 material high-speed circuit board (high-speed PCB board) is used for carrying an MXM connector, an interface conversion chip, a power supply unit B and an external interface, and providing a circuit to interconnect the parts.
MXM connector: a high-speed connector (highest transmission rate 16 Gbps) based on MXM standard size is used for fixing a core board and is a bridge for data communication between a carrier board and the core board.
Interface conversion chip: the signals of the plurality of high-speed differential lines (namely, the high-speed differential signal lines) can be converted into signals of the plurality of Ethernet lines or optical fiber lines, or the signals of the plurality of Ethernet lines or optical fiber lines can be converted into signals of the high-speed differential lines, so that real-time bidirectional communication can be realized.
Power supply unit B: providing electrical power to all devices within the carrier.
An external interface: a plurality of ethernet interfaces or fiber optic interfaces are interfaced with external modules (computing modules, storage modules, etc.) in the form of high-speed connectors.
Based on the structure shown in fig. 2, the structure of the board card communication connection provided by the embodiment of the invention can be shown in fig. 3. Each computing module and each storage module are in physical communication with an external interface of the switch board card through an Ethernet line (such as Ethernet 0-3) or an optical fiber line (such as optical fiber 0-3), and the computing module and the storage module are in communication with the external interface based on Ethernet communication or optical fiber communication. And the external interface and the interface conversion chip are correspondingly connected based on Ethernet or optical fiber. The exchange chip, the MXM connector and the interface conversion chip are in communication connection through a high-speed differential circuit (such as high-speed differential circuits 0-7). The exchange chip and the logic management chip are connected based on GPIO communication.
The working process of the switch board card provided by the embodiment of the invention is briefly described below in connection with the working scene of the switch board card.
One of the working scenarios of the switch board card is that the computing module writes data into the storage module, and in this working scenario, the flow of data of the switch board card in the working process can refer to fig. 4.
When any computing module writes data into one or more storage modules, the data of the computing module enters an interface conversion chip of the carrier board through an external interface through a network cable (Ethernet or optical fiber), and the interface conversion chip converts a line signal in the form of Ethernet or optical fiber into a signal of a high-speed differential line so as to realize communication with the switching chip based on the high-speed differential line. At this time, the converted data enters the core board through the MXM connector of the carrier board, each high-speed differential circuit on the core board is in butt joint with a port (such as ports 0 to 7) of the switching chip, and the data enters the chip from the port of the switching chip through one of the high-speed differential circuits. The data are distributed to other ports in real time in the exchange chip, and then the data enter the carrier board through the MXM connector by the high-speed differential circuit which is in butt joint with the ports. The interface conversion chip on the carrier plate converts the data transmitted by the high-speed differential line into an Ethernet or optical fiber line form, and writes the data into the storage module through an external interface by a network cable (Ethernet or optical fiber). The port distribution rule inside the exchange chip distributes the received data to which ports, the logic management chip can configure the exchange chip through the GPIO, and the logic management chip can simultaneously configure the port rate of the exchange chip to ensure that the port rate is consistent with the rate of an external interface, thereby preventing communication abnormality.
Another working scenario of the switch board is that the computing module reads data from the storage module, and in this working scenario, the data flow of the switch board in the working process may refer to fig. 5.
When any computing module needs to read the data in one or more storage modules, the data in the corresponding storage module enters the carrier board through the Ethernet or the optical fiber by the external interface, the interface conversion chip on the carrier board converts the signals of the data, and the converted data is sent to the exchange chip on the core board through the MXM connector by the high-speed differential circuit. Ports on the switch chip receive data through the high-speed differential line, and the switch chip immediately distributes the data to other ports. The data then passes through the high-speed differential line and enters the carrier board through the MXM connector. The interface conversion chip performs signal conversion on the data, and the data is transferred to an Ethernet or an optical fiber line from the high-speed differential line and is transmitted to the calculation module through the Ethernet or the optical fiber which is physically connected with the external interface.
Next, a brief description will be given of the sizing of the switch board.
Because different devices have requirements on the size of the switch board, the switch board cannot connect all ports out, so that only the required ports can be pulled to the external interface. And because of various external interface forms required by the equipment, such as gigabit optical fiber, tera optical fiber, gigabit Ethernet, tera Ethernet, 10GBASE-KR, 1000BASE-X and the like, the switch board card has different external interface forms and rates. 10GBASE-KR is a 10Gbps rate backplane transport protocol, and 1000BASE-X is a 1Gbps rate backplane transport protocol.
As devices become smaller, the physical dimensions of the switch card may also vary from device to device. Different board designs are required for different external interface numbers, different external interface forms, different external interface rates and different external dimensions. Meanwhile, the ports of the exchange chip are required to be output to different external interfaces through different interface conversion chips, different power supply units are required to support, wiring rationality on the PCB board also needs to be carefully checked and filtered, the exchange chip needs to radiate heat, and the structure and the fixing mode of the radiator also need to be optimized.
In the embodiment of the invention, the core board is designed into a standard TYPE A MXM display card form, the TYPE A MXM display card is a graphics processing card based on a PCI-Express interface, the MXM structure size belongs to class A in the design standard, the size and the structure of the TYPE A MXM display card can refer to FIG. 6, and the curve circle in FIG. 6 is a prompt notch design. The thickness of the core plate is 1.2mm, and a standard MXM connector can be inserted, wherein the standard MXM connector is an existing device and is not described in detail herein, the standard MXM connector is provided with an upper row of gold finger shrapnel and a lower row of gold finger shrapnel, the highest transmission rate is 16Gbps, and the rate (10 Gbps) requirement of a port of a switching chip is met. A brief structure of the core board can be shown in fig. 7, where the core board connects all ports of the switch chip to the gold finger through the high-speed differential line. After the core board is inserted into the MXM connector, the golden finger is reliably contacted with the MXM connector, so that reliable data transmission is realized. The core board is integrated with the exchange chip, the logic management chip and the power supply unit A, can be compatible with various exchange board card applications, and can be produced in advance for standby after repeated test verification, and the form (including circuits and PCB wiring) of the core board can be solidified.
It should be noted that, the specific designs of the structure, the communication connection, the form and the size provided in the embodiments of the present invention are only for better explaining the specific embodiments provided by the switch board card provided by the present invention, and in the specific implementation process, the structural form, the setting position, the communication connection mode, etc. of each component of the switch board card can be set according to the requirements, without affecting the implementation function of the switch board card provided by the present invention. Similarly, the design contents shown in fig. 2 to fig. 7 are only schematic illustration provided for illustrating the specific implementation manner of the embodiment of the present invention, and are not limited to the specific implementation manner in the application scenario. The form, position and number of the respective objects shown in fig. 2 do not represent the form, position and number of the respective objects in the actual scene, and fig. 2 does not show all structures on the carrier board and the core board in the actual scene. The connection relationship shown in fig. 3 is only an exemplary simplified connection, and is not limited to the types of communication lines in the practical application scenario, and the number of various types of communication lines. The data flows shown in fig. 4 and 5 are also merely examples provided for the corresponding communication connections shown in fig. 3. The structural dimensions shown in fig. 6 and 7 are merely one specific example provided for the morphological structural design of the core board, and other morphological dimensional designs may be employed for the core board in specific application scenarios. Similarly, the size and type of the MXM connector can be selected according to the actual requirement.
Based on the exchange board card provided by the embodiment of the invention, when a new exchange board card is required, only the carrier board (customized carrier board) is needed to be redesigned, for example, the size of the carrier board is redesigned, the number and the positions of Ethernet and optical fiber pair interfaces corresponding to external interfaces on the carrier board are modified, the interface conversion chips supporting the number of different high-speed differential circuits are replaced, and different power supply units are replaced. Because the core board is solidified and reused, only the PCB wiring of the carrier board needs to be optimized, and only the quality of the butt joint line of the carrier board and other modules (such as a calculation module and a storage module) needs to be considered. After the design of the carrier plate part is completed, the produced core plate can be inserted into the MXM connector, codes on the logic management chip are modified, ports of the switching chip are configured, such as ports which are not used in the closing part, the rate of the ports is modified, and the like, so that the functions of the switching board card can be realized.
The exchange board card provided by the embodiment of the invention adopts the core board with the MXM standard structure, different exchange boards only need to design the carrier board (customized carrier board), the core board is universal, and the product design period can be greatly shortened. Different exchange board cards only need to design the circuit and the device of the carrier board (the customized carrier board), the changing place is less, and the risk of design errors can be reduced. If the exchange board card has design defects, only the design of the carrier board needs to be modified or optimized, the core board can be detached for standby, the whole board card is not wasted, and the material cost can be saved.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. The apparatus and apparatus embodiments described above are merely illustrative, wherein the elements described as separate elements may or may not be physically separate, and elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A mobile high-speed serial computer expansion bus standard module-based switch board card, comprising:
a core board and a carrier board; the core board is provided with an exchange chip, a logic management chip and a golden finger;
the carrier plate is provided with an MXM connector, an interface conversion chip and an external interface set; the external interface set comprises a plurality of external interfaces, and the MXM connector is a connector based on a mobile high-speed serial computer expansion bus standard module MXM interface;
the core board is connected with the MXM connector through the golden finger;
the exchange chip is in communication connection with the logic management chip, and the exchange chip is in communication connection with the interface conversion chip through the MXM connector; the interface conversion chip is respectively connected with each external interface in a communication way;
Each external interface is used for connecting an external module corresponding to the external interface;
the interface conversion chip is used for carrying out signal conversion on the input signals when receiving the input signals transmitted by the external interfaces in the external interface set, obtaining first data signals corresponding to the exchange chip and sending the first data signals to the exchange chip; when receiving an output signal transmitted by the exchange chip, determining a target external interface corresponding to the output signal in the external interface set, performing signal conversion on the output signal to obtain a second data signal corresponding to the target external interface, and sending the second data signal to the target external interface;
the exchange chip is used for carrying out data exchange processing on the received data signals;
the logic management chip is used for configuring the signal port of the switching chip.
2. The switch board card of claim 1, wherein a first power supply unit is arranged on the core board, and a second power supply unit is arranged on the carrier board;
the first power supply unit is used for supplying power to the switching chip and the logic management chip;
The second power supply unit is used for supplying power to the MXM connector and the interface conversion chip.
3. The switch board of claim 1, wherein the switch chip is communicatively connected to the interface conversion chip through the MXM connector by:
each signal port on the exchange chip is connected with the golden finger through a high-speed differential signal line corresponding to the signal port;
each signal port on the MXM connector is connected to a port on the interface conversion chip corresponding to the signal port through a high-speed differential signal line corresponding to the signal port.
4. The switch board of claim 3, wherein the first data signal is a high-speed differential signal.
5. The switch board card of claim 1, wherein each of the set of external interfaces includes a plurality of ethernet interfaces.
6. The switch board of claim 5, wherein the interface conversion chip is communicatively connected to each ethernet interface in the following manner:
for each ethernet interface, the interface conversion chip is connected to the port corresponding to the ethernet interface through the ethernet line corresponding to the port.
7. The switch card of claim 1, wherein each of the set of external interfaces includes a plurality of fiber interfaces.
8. The switch board of claim 7, wherein said interface conversion chip is communicatively coupled to each of said fiber interfaces by:
and for each optical fiber interface, a port corresponding to the optical fiber interface on the interface conversion chip is connected with the optical fiber interface through an optical fiber line corresponding to the port.
9. The switch board of claim 1, wherein the switch chip is communicatively connected to the logic management chip by: the communication connection is performed based on the general purpose input/output port GPIO.
10. The switch board card of claim 1, wherein said configuring the signal ports of the switch chip comprises:
the on-off state of each signal port of the exchange chip is configured;
configuring the interconnection relation of each signal port of the exchange chip;
and configuring the data transmission rate of each signal port of the switching chip.
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| CN202311199097.9A CN116956806B (en) | 2023-09-18 | 2023-09-18 | Exchange board card based on mobile high-speed serial computer expansion bus standard module |
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| CN202311199097.9A CN116956806B (en) | 2023-09-18 | 2023-09-18 | Exchange board card based on mobile high-speed serial computer expansion bus standard module |
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| US20140328104A1 (en) * | 2013-05-06 | 2014-11-06 | SK Hynix Inc. | Semiconductor device |
| CN105279133A (en) * | 2015-10-20 | 2016-01-27 | 电子科技大学 | VPX parallel DSP signal processing board card based on SoC online reconstruction |
| CN109561032A (en) * | 2018-12-12 | 2019-04-02 | 山东超越数控电子股份有限公司 | A kind of switch module and the interchanger including it |
| CN212781864U (en) * | 2020-07-23 | 2021-03-23 | 深圳智锐通科技有限公司 | MXM card, mainboard structure and computer equipment that have it |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20140328104A1 (en) * | 2013-05-06 | 2014-11-06 | SK Hynix Inc. | Semiconductor device |
| CN105279133A (en) * | 2015-10-20 | 2016-01-27 | 电子科技大学 | VPX parallel DSP signal processing board card based on SoC online reconstruction |
| CN109561032A (en) * | 2018-12-12 | 2019-04-02 | 山东超越数控电子股份有限公司 | A kind of switch module and the interchanger including it |
| CN212781864U (en) * | 2020-07-23 | 2021-03-23 | 深圳智锐通科技有限公司 | MXM card, mainboard structure and computer equipment that have it |
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