CN113918489A - PCIE switching device and server - Google Patents

PCIE switching device and server Download PDF

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Publication number
CN113918489A
CN113918489A CN202111264313.4A CN202111264313A CN113918489A CN 113918489 A CN113918489 A CN 113918489A CN 202111264313 A CN202111264313 A CN 202111264313A CN 113918489 A CN113918489 A CN 113918489A
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CN
China
Prior art keywords
pin
control
controller
connector
pcie
Prior art date
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Withdrawn
Application number
CN202111264313.4A
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Chinese (zh)
Inventor
王超
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Inspur Beijing Electronic Information Industry Co Ltd
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Inspur Beijing Electronic Information Industry Co Ltd
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Priority to CN202111264313.4A priority Critical patent/CN113918489A/en
Publication of CN113918489A publication Critical patent/CN113918489A/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/382—Information transfer, e.g. on bus using universal interface adapter
    • G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/30—Monitoring
    • G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
    • G06F11/324—Display of status information
    • G06F11/325—Display of status information by lamps or LED's
    • 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
    • G06F13/40—Bus structure
    • G06F13/4063—Device-to-bus coupling
    • G06F13/4068—Electrical coupling
    • G06F13/4081—Live connection to bus, e.g. hot-plugging
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • 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

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Computer Hardware Design (AREA)
  • Information Transfer Systems (AREA)

Abstract

The invention discloses a PCIE switching device and a server, which realize the function of freely switching a plurality of controllers and PCIE interface cards under the scene that the plurality of controllers need to transmit data with the PCIE interface cards by arranging a channel selection module, can realize the function of transmitting data between the plurality of controllers and the PCIE interface cards without a plurality of PCIE switching devices, and saves the space in a case.

Description

PCIE switching device and server
Technical Field
The present invention relates to the field of server systems, and in particular, to a PCIE switch device and a server.
Background
When a PCIE (Peripheral Component Interconnect Express) interface card performs data transmission with a controller, the PCIE interface card is connected to the controller through a PCIE switching device. Specifically, the PCIE switching device includes a board card, and a connection module and a board connector that are disposed on the board card, and the connection module is connected to the board connector. The PCIE interface card is connected with a connecting module on the PCIE switching device, and the main board connector is connected with a PCIE interface of the controller. When a plurality of controllers all have the demand of transmitting data with the PCIE interface card, a PCIE switching device is set for each controller in the prior art, and the space inside the chassis is greatly occupied.
Disclosure of Invention
The invention aims to provide a PCIE switching device and a server, which can realize the function of data transmission between a plurality of controllers and a PCIE interface card without a plurality of PCIE switching devices and save the space in a case.
In order to solve the technical problem, the invention provides a PCIE switch device, which includes a board card, and a channel selection module, a connection module, and N board connectors that are arranged on the board card, where N is an integer not less than 2;
the N mainboard connectors are connected with the channel selection module and are also connected with the N controllers in a one-to-one correspondence manner;
the connection module is connected with the channel selection module and the PCIE interface card respectively;
and the channel selection module is used for connecting the connection module to a mainboard connector corresponding to the control instruction according to the control instruction when receiving the control instruction.
Preferably, when receiving the control instruction, the method specifically includes:
when a control instruction sent by a main controller in the N controllers is received.
Preferably, the device further comprises a prompt module, wherein the prompt module is connected with the main controller and used for prompting the controller which transmits data with the PCIE interface card currently according to control of the main controller.
Preferably, the prompting module is an LED indicating lamp.
Preferably, the connection module is an OCP standard connector;
the PCIE interface card is an OCP standard card.
Preferably, the N motherboard connectors are all connectors supporting hot plugging.
Preferably, when N is equal to 2, the channel selection module comprises a multiplexer and a demultiplexer;
a first RX pin of the multiplexer is connected with a TX pin of a first motherboard connector, a second RX pin of the multiplexer is connected with a TX pin of a second motherboard connector, the TX pin of the multiplexer is connected with an RX pin of the connection module, control pins of the multiplexer are respectively connected with a control pin of the first motherboard connector and a control pin of the second motherboard connector, the control pin of the first motherboard connector is connected with a control pin of a first controller, and the control pin of the second motherboard connector is connected with a control pin of a second controller;
a first TX pin of the demultiplexer is connected with an RX pin of the first board connector, a second TX pin of the demultiplexer is connected with an RX pin of the second board connector, the RX pin of the demultiplexer is connected with a TX pin of the connection module, and control pins of the demultiplexer are respectively connected with a control pin of the first board connector and a control pin of the second board connector;
the multiplexer and the demultiplexer are used for connecting the connection module to a mainboard connector corresponding to a control instruction according to the control instruction when the control instruction sent by a main controller is received; the main controller is the first controller or the second controller.
The invention also provides a server which comprises the PCIE switching device.
The invention provides a PCIE switching device and a server, which realize the function of freely switching a plurality of controllers and PCIE interface cards under the scene that the plurality of controllers need to transmit data with the PCIE interface cards by arranging a channel selection module, can realize the function of transmitting data between the plurality of controllers and the PCIE interface cards without a plurality of PCIE switching devices, and saves the space in a case.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a PCIE switch device provided in the present invention;
fig. 2 is a schematic structural diagram of another PCIE switch device provided in the present invention.
Detailed Description
The core of the invention is to provide the PCIE switching device and the server, which can realize the function of data transmission between a plurality of controllers and the PCIE interface cards without a plurality of PCIE switching devices and save the space in a case.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a PCIE switch device provided in the present invention.
The PCIE switching device comprises a board card 1, and a channel selection module 2, a connection module 3 and N board connectors 4 which are arranged on the board card 1, wherein N is an integer not less than 2;
the N mainboard connectors 4 are connected with the channel selection module 2, and the N mainboard connectors 4 are also connected with the N controllers in a one-to-one correspondence manner;
the connection module 3 is respectively connected with the channel selection module 2 and the PCIE interface card;
the channel selection module 2 is configured to connect the connection module 3 to the motherboard connector 4 corresponding to the control instruction according to the control instruction when receiving the control instruction.
Under the scene of a plurality of controllers, each controller all has the demand of data transmission with the PCIE interface card, considers that quick-witted case inner space is limited, if all set up solitary switching device for each controller and will occupy quick-witted case inside valuable space, consequently, in this embodiment, be provided with passageway selection module 2, can freely switch over the controller that carries out data transmission with the PCIE interface card.
Specifically, when receiving the control instruction, the channel selection module 2 determines a controller to be used for data transmission with the PCIE interface card according to the control instruction, and connects the connection module 3 to the board connector 4 connected to the controller, so that the PCIE interface card and the controller perform data transmission. When the controller performing data transmission with the PCIE interface card fails or data transmission is completed, the controller performing data transmission with the PCIE interface card may be switched by sending a control instruction to the channel selection module 2 again, and when receiving the control instruction, the channel selection module 2 may cut off connection between the motherboard connector 4 and the connection module 3 corresponding to the controller performing data transmission with the PCIE interface card before, and connect the connection module 3 to the motherboard connector 4 corresponding to the control instruction according to the control instruction.
In addition, in the prior art, when a board card including a plurality of board connectors 4 is used, sometimes only one of the plurality of board connectors 4 is selected to be connected to the connection module 3 according to the internal space design of the server, and the other board connectors 4 are subjected to isolation processing, such as setting isolation resistors, which affects the signal transmission quality between the PCIE interface card and the controller, and since one of the plurality of board connectors 4 is connected to the connection module 3 manually, a connection error may occur, in this embodiment, by setting the channel selection module 2, the N board connectors 4 are connected to the channel selection module 2, and the channel selection module 2 selects one of the N board connectors 4 to be connected to the connection module 3 according to a control command, which does not need to set isolation resistors, thereby improving the signal transmission quality between the PCIE interface card and the controller, and the situation of connection errors can not occur.
In summary, in this embodiment, by setting the channel selection module 2, the controllers that perform data transmission with the PCIE interface card are freely switched in a scenario with multiple controllers, and a switching module does not need to be separately set for each controller, thereby saving the space inside the chassis.
On the basis of the above-described embodiment:
as a preferred embodiment, when receiving a control instruction, the method specifically includes:
when a control instruction sent by a main controller in the N controllers is received.
In order to solve the above problem, in the present embodiment, a control instruction is sent to the channel selection module 2 by the multiplexing controller, in consideration of the cost increase caused by additionally providing a control module to control the channel selection module 2.
Specifically, any one of the N controllers is determined to be the main controller, the main controller sends a control instruction to the channel selection module 2, and the channel selection module 2 connects the connection module 3 to the motherboard connector 4 corresponding to the control instruction according to the control instruction.
In addition, the main controller here is any one of N controllers that a technician manually designates as needed, and when the main controller fails, the system takes a controller adjacent to the failed main controller as a new main controller because the N controllers communicate with each other.
In summary, in this embodiment, the main controller in the N controllers sends the control instruction to the channel selection module 2, so that multiplexing of the controllers is achieved, and no additional control module is needed, thereby saving cost.
As a preferred embodiment, the device further comprises a prompt module, wherein the prompt module is connected with the main controller and is used for prompting the controller which transmits data with the PCIE interface card currently according to control of the main controller.
In order to prompt a technician about a controller that is currently transmitting data with a PCIE interface card, in this embodiment, a prompt module is provided, and the prompt module prompts the controller that is currently transmitting data with the PCIE interface card according to control of the main controller. For example, a serial number may be programmed for the controller, and the prompt module prompts the controller currently performing data transmission with the PCIE interface card by displaying the serial number of the controller. When the controller which carries out data transmission with the PCIE interface card at present is abnormal, a technician can quickly locate the abnormal controller according to the information prompted by the prompting module.
As a preferred embodiment, the prompting module is an LED (Light-Emitting Diode) indicating lamp.
In this embodiment, the LED indicator is used as the prompt module, and the LED indicator has the advantages of energy saving, working in a high-speed on-off state, environmental protection, high response speed, and the like.
As a preferred embodiment, the connection module 3 is an OCP (Open computer Project) standard connector;
the PCIE interface card is an OCP standard card.
In this embodiment, the connection module 3 uses an OCP standard connector, and can support all PCIE interface cards meeting the OCP standard and meet the signal transmission of PCIE5.0 at the same time.
In a preferred embodiment, the N board connectors 4 are all hot-plug capable connectors.
In this embodiment, the N board connectors 4 are all connectors supporting hot plugging, and the board card 1 can be inserted or pulled out without affecting the normal operation of the server without turning off the power supply of the server, so that the reliability, the quick maintainability, the redundancy and the timely recovery capability to a disaster of the server are improved.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another PCIE switch device provided in the present invention.
As a preferred embodiment, when N is equal to 2, the channel selection block 2 comprises a multiplexer 21 and a demultiplexer 22;
a first RX (Receive) pin of the multiplexer 21 is connected to a TX (Transmit) pin of the first motherboard connector 41, a second RX pin is connected to a TX pin of the second motherboard connector 42, the TX pin is connected to an RX pin of the connection module 3, the control pins are respectively connected to a control pin of the first motherboard connector 41 and a control pin of the second motherboard connector 42, the control pin of the first motherboard connector 41 is connected to a control pin of the first controller, and the control pin of the second motherboard connector 42 is connected to a control pin of the second controller;
a first TX pin of the demultiplexer 22 is connected to an RX pin of the first board connector 41, a second TX pin is connected to an RX pin of the second board connector 42, the RX pin is connected to a TX pin of the connection module 3, and control pins are connected to a control pin of the first board connector 41 and a control pin of the second board connector 42, respectively;
the multiplexer 21 and the demultiplexer 22 are configured to connect the connection module 3 to the motherboard connector 4 corresponding to the control instruction according to the control instruction when receiving the control instruction sent by the main controller; the main controller is a first controller or a second controller.
In this embodiment, the channel selection module 2 includes a multiplexer 21 and a demultiplexer 22, where the demultiplexer 22 may also be referred to as a splitter, the multiplexer 21 can send one of the first RX pin of the multiplexer 21 and the second RX pin of the multiplexer 21 through the TX pin of the multiplexer 21 according to a control instruction received by the control pin, and the demultiplexer 22 can access the RX pin of the demultiplexer 22 to one of the first TX pin of the multiplexer and the second TX pin of the multiplexer according to a control instruction received by the control pin.
Specifically, under the condition that the PCIE interface card needs to transmit data with the first controller, when the multiplexer 21 and the demultiplexer 22 receive a control instruction sent by the main controller, the multiplexer 21 connects the first RX pin of itself with the TX pin of itself, cuts off the connection between the second RX pin of itself and the TX pin of itself, and the demultiplexer 22 connects the RX pin of itself with the first TX pin of itself, cuts off the connection between the RX pin of itself and the second TX pin of itself, so that the PCIE interface card performs data transmission with the first controller; similarly, when the PCIE interface card needs to transmit data with the second controller, when the multiplexer 21 and the demultiplexer 22 receive a control instruction sent by the main controller, the multiplexer 21 connects the second RX pin of itself with the TX pin of itself, cuts off the connection between the first RX pin of itself and the TX pin of itself, and the demultiplexer 22 connects the RX pin of itself with the second TX pin of itself, cuts off the connection between the RX pin of itself and the first TX pin of itself, so that the PCIE interface card performs data transmission with the second controller.
In addition, the multiplexer 21 and the demultiplexer 22 can fully utilize the capacity of the communication channel, so that the cost of the system is greatly reduced, and a separate PCIE switching device does not need to be arranged for each controller.
In summary, in this embodiment, the channel selection module 2 employs the multiplexer 21 and the demultiplexer 22, and can flexibly switch the controllers communicating with the PCIE interface card, so that the implementation is simple, and a PCIE switching device does not need to be separately configured for each controller, thereby reducing the cost.
The invention also provides a server which comprises the PCIE switching device.
For the related content of the server, please refer to the above embodiments, which are not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (8)

1. A PCIE switching device is characterized by comprising a board card, and a channel selection module, a connection module and N board connectors which are arranged on the board card, wherein N is an integer not less than 2;
the N mainboard connectors are connected with the channel selection module and are also connected with the N controllers in a one-to-one correspondence manner;
the connection module is connected with the channel selection module and the PCIE interface card respectively;
and the channel selection module is used for connecting the connection module to a mainboard connector corresponding to the control instruction according to the control instruction when receiving the control instruction.
2. The PCIE switch device of claim 1, wherein when receiving the control instruction, the PCIE switch device specifically comprises:
when a control instruction sent by a main controller in the N controllers is received.
3. The PCIE switching apparatus of claim 2, further comprising a prompt module, connected to the main controller, for prompting a controller that is currently transmitting data with the PCIE interface card according to control of the main controller.
4. The PCIE switch apparatus of claim 3, wherein the prompt module is an LED indicator light.
5. The PCIE switch apparatus of claim 1, wherein the connection module is an OCP standard connector;
the PCIE interface card is an OCP standard card.
6. The PCIE switch device of claim 1, wherein the N board connectors are all connectors that support hot plugging.
7. The PCIE switch apparatus of any one of claims 1 to 6, wherein when N is equal to 2, the lane selection module comprises a multiplexer and a demultiplexer;
a first RX pin of the multiplexer is connected with a TX pin of a first motherboard connector, a second RX pin of the multiplexer is connected with a TX pin of a second motherboard connector, the TX pin of the multiplexer is connected with an RX pin of the connection module, control pins of the multiplexer are respectively connected with a control pin of the first motherboard connector and a control pin of the second motherboard connector, the control pin of the first motherboard connector is connected with a control pin of a first controller, and the control pin of the second motherboard connector is connected with a control pin of a second controller;
a first TX pin of the demultiplexer is connected with an RX pin of the first board connector, a second TX pin of the demultiplexer is connected with an RX pin of the second board connector, the RX pin of the demultiplexer is connected with a TX pin of the connection module, and control pins of the demultiplexer are respectively connected with a control pin of the first board connector and a control pin of the second board connector;
the multiplexer and the demultiplexer are used for connecting the connection module to a mainboard connector corresponding to a control instruction according to the control instruction when the control instruction sent by a main controller is received; the main controller is the first controller or the second controller.
8. A server, comprising a PCIE switch apparatus according to any one of claims 1 to 7.
CN202111264313.4A 2021-10-28 2021-10-28 PCIE switching device and server Withdrawn CN113918489A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111264313.4A CN113918489A (en) 2021-10-28 2021-10-28 PCIE switching device and server

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111264313.4A CN113918489A (en) 2021-10-28 2021-10-28 PCIE switching device and server

Publications (1)

Publication Number Publication Date
CN113918489A true CN113918489A (en) 2022-01-11

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Application Number Title Priority Date Filing Date
CN202111264313.4A Withdrawn CN113918489A (en) 2021-10-28 2021-10-28 PCIE switching device and server

Country Status (1)

Country Link
CN (1) CN113918489A (en)

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Application publication date: 20220111