CN112069107A - Server board card capable of automatically identifying external plug-in card and external plug-in card automatic identification method - Google Patents
Server board card capable of automatically identifying external plug-in card and external plug-in card automatic identification method Download PDFInfo
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- CN112069107A CN112069107A CN202010847710.3A CN202010847710A CN112069107A CN 112069107 A CN112069107 A CN 112069107A CN 202010847710 A CN202010847710 A CN 202010847710A CN 112069107 A CN112069107 A CN 112069107A
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- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
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Abstract
The invention relates to the technical field of servers and provides a server board card capable of automatically identifying an external plug-in card and an automatic identification method of the external plug-in card, wherein the server board card comprises a mainboard and a switching card, the mainboard is provided with a platform control center PCH and two X8 connectors, and the switching card is provided with two X8 connectors, a PCIe exchange chip and a slot identification circuit; the slot identification circuit is connected with the PCIe exchange chip and the PCIe X8 slot, the slot identification circuit is used for identifying the insertion state of an external plug-in card of the PCIe X8 slot and feeding back the identified insertion state to the platform control center PCH and the PCIe exchange chip, and the platform control center PCH carries out PCIe signal configuration according to the identified insertion state of the PCIe X8 slot, so that the identification of the external plug-in card type is realized, and the waste of manpower and material resources caused by the need of designing two adapter cards in different configurations is avoided.
Description
Technical Field
The invention belongs to the technical field of servers, and particularly relates to a server board card capable of automatically identifying an external plug-in card and an automatic identification method of the external plug-in card.
Background
With the continuous development of server technology and the increase of diversity of user requirements, the user has more and more stringent requirements on the function and performance of a single server, and the same server may need to support both a memory card for storage expansion of a machine and a GPU to realize support for AI and artificial intelligence services, and additionally need to support a network card to realize network support. Generally, limited by the size of the server motherboard, the motherboard body cannot support a plurality of PCIe add-in cards by design, so corresponding connector slots (e.g., PCIe slot, GENZ connector, other high-density connectors, etc.) are reserved on the motherboard in the server design process, and then corresponding adapter cards are designed to convert PCIe signals on the motherboard into PCIe add-in cards with different bandwidths and more slots, which is convenient for customers to use with a plurality of PCIe add-in cards with different bandwidths.
In current designs, developers may design different riser cards to support different requirements according to different configuration requirements. For example: if there is one X32 bandwidth GENZ connector on the motherboard, then two adapter cards can be designed to support different PCIe add-in cards in general: one is to design the adapter card as an X8+ X16 PCIe slot, so that two external cards can be supported; another alternative is to design the patch card as three PCIe slots of X8, so that three add-in cards can be supported. For another example: if there are two slim line connectors of X8 on the motherboard, then two adapter cards can be designed to support different PCIe add-in cards in general: one is to design the adapter card as an X16 PCIe slot, that is, two slim connectors of the motherboard are connected to two slim connectors on the adapter card through cables, so as to convert and connect signals to the X16 PCIe slot; the other is to design the adapter card as two PCIe slots of X8, that is, two slim connectors of the motherboard are connected to two slim connectors on the adapter card through cables, so as to respectively transfer signals to the two PCIe slots of X8.
However, according to the current mainstream design, after the adapter card slot on the motherboard is determined, the bandwidth and the number of the external add-in cards that can be supported by the motherboard are also determined, and if different configurations need to be supported, the customer needs to be realized by replacing the adapter card, which may result in an increase in maintenance work of the entire shipment list and waste of manpower and material resources caused by designing different adapter cards.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the server board card which can automatically identify the inserted external plug-in card by automatically identifying the type of the inserted external plug-in card through the relevant line on the adapter card, thereby realizing the flexible switching of the number and the bandwidth of the supported external plug-in cards.
The technical scheme provided by the invention is as follows: a server board card capable of automatically identifying an external plug-in card comprises a mainboard and a switching card, wherein a platform control center PCH and two X8 connectors used for providing PCIe X8 signals are arranged on the mainboard, and two X8 connectors which are directly connected with and correspond to the two X8 connectors on the mainboard, a PCIe switching chip and a slot identification circuit are arranged on the switching card;
the slot identification circuit is connected with the PCIe exchange chip and the PCIe X8 slot, the slot identification circuit is used for identifying the insertion state of an external plug-in card of the PCIe X8 slot and feeding back the identified insertion state to the platform control center PCH and the PCIe exchange chip, and the platform control center PCH carries out PCIe signal configuration according to the identified insertion state of the PCIe X8 slot.
As an improved scheme, two X8 connectors on the motherboard are respectively marked as a first X8 connector and a second X8 connector, and the first X8 connector and the second X8 connector are respectively connected with a central processing unit CPU and are used for outputting PCIe X8 signals output by the central processing unit CPU;
the first X8 connector is used for outputting signals of PCIe0-7 output by the central processing unit CPU, and the second X8 connector is used for outputting signals of PCIe8-15 output by the central processing unit CPU.
As an improved scheme, two X8 connectors on the riser card are respectively marked as a third X8 connector and a fourth X8 connector, wherein one end of the third X8 connector is connected with the first X8 connector, the other end of the third X8 connector is connected with a PCIe X16 slot, one end of the fourth X8 connector is connected with the second X8 connector, and the other end of the fourth X8 connector is connected with the PCIe X8 slot and a PCIe X16 slot respectively through the PCIe switch chip.
As an improved scheme, the PCIe switch chip is provided with a signal terminal Y0 and a signal terminal Y1, where the signal terminal Y0 is connected to the PCIe X16 slot through a PCIe X8 signal line, and the signal terminal Y1 is connected to the PCIe X8 slot through a PCIe X8 signal line.
As an improved scheme, the slot identification circuit comprises a bit pin of a PCIe X8 slot connected with a signal terminal SEL of the PCIe exchange chip and a pull-up resistor arranged correspondingly;
and a line led out from a signal terminal SEL of the PCIe switching chip is also connected to the platform control center PCH.
As a modified solution, the first X8 connector, the second X8 connector, the third X8 connector and the fourth X8 connector are Slimline connectors.
Another object of the present invention is to provide an automatic identification method for an add-in card based on a server board card capable of automatically identifying the add-in card, the method comprising the following steps:
the slot identification circuit identifies the insertion state of an external plug-in card on the PCIe X8 slot;
when the external plug card is not inserted into the PCIe X8 slot, a signal terminal SEL is in a high level, a PCIe signal is switched to a signal terminal Y0, 16 paths of PCIe signals of the central processing unit are all connected to the PCIe X16 slot, and the adapter card supports an X16 external plug card;
when an external plug-in card is inserted into the PCIe X8 slot, the signal terminal SEL is in low level, a PCIe signal is switched to the signal terminal Y1, the PCIe0-7 of the 16-path PCIe signal of the central processing unit is connected to the PCIe X16 slot, the signal PCIe8-15 is connected to the PCIe X8 slot, and the adapter card supports two X8 external plug-in cards.
In the embodiment of the invention, the server board card capable of automatically identifying the external plug-in card comprises a mainboard and a switching card, wherein the mainboard is provided with a platform control center PCH and two X8 connectors for providing PCIe X8 signals, and the switching card is provided with two X8 connectors which are directly connected with the two X8 connectors on the mainboard and correspond to the two X3526 connectors, a PCIe switching chip and a slot identification circuit; the slot identification circuit is connected with the PCIe exchange chip and the PCIe X8 slot, the slot identification circuit is used for identifying the insertion state of an external plug-in card of the PCIe X8 slot and feeding back the identified insertion state to the platform control center PCH and the PCIe exchange chip, and the platform control center PCH carries out PCIe signal configuration according to the identified insertion state of the PCIe X8 slot, so that the identification of the external plug-in card type is realized, and the waste of manpower and material resources caused by the need of designing two adapter cards in different configurations is avoided.
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In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a server board card capable of automatically identifying an external plug-in card according to the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Fig. 1 is a schematic structural diagram of a server board card capable of automatically identifying an add-in card according to the present invention, and for convenience of description, only the relevant portions of the embodiment of the present invention are shown in the diagram.
The server board card capable of automatically identifying the external plug-in card comprises a mainboard and a switching card, wherein a platform control center PCH and two X8 connectors for providing PCIe X8 signals are arranged on the mainboard, and two X8 connectors which are directly connected with and correspond to the two X8 connectors on the mainboard, a PCIe switching chip and a slot identification circuit are arranged on the switching card;
the slot identification circuit is connected with the PCIe exchange chip and the PCIe X8 slot, the slot identification circuit is used for identifying the insertion state of an external plug-in card of the PCIe X8 slot and feeding back the identified insertion state to the platform control center PCH and the PCIe exchange chip, the platform control center PCH carries out PCIe signal configuration according to the identified insertion state of the PCIe X8 slot, and the PCH is further connected with the CPU.
As shown in fig. 1, two X8 connectors on the motherboard are respectively denoted as a first X8 connector and a second X8 connector, and the first X8 connector and the second X8 connector are respectively connected to the central processing unit CPU and are used for outputting PCIe X8 signals output by the central processing unit CPU;
the first X8 connector is used for outputting signals of PCIe0-7 output by the central processing unit CPU, and the second X8 connector is used for outputting signals of PCIe8-15 output by the central processing unit CPU.
In the embodiment of the present invention, two X8 connectors on the riser card are respectively denoted as a third X8 connector and a fourth X8 connector, wherein one end of the third X8 connector is connected to the first X8 connector, the other end of the third X8 connector is connected to a PCIe X16 slot, one end of the fourth X8 connector is connected to the second X8 connector, and the other end of the fourth X8 connector is connected to the PCIe X8 slot and the PCIe X16 slot respectively through the PCIe switch chip.
As shown in fig. 1, a PCIe switch chip is provided with a signal terminal Y0 and a signal terminal Y1, where the signal terminal Y0 is connected to the PCIe X16 slot through a PCIe X8 signal line, and the signal terminal Y1 is connected to the PCIe X8 slot through a PCIe X8 signal line;
the slot identification circuit comprises an in-place pin of a PCIe X8 slot connected with a signal terminal SEL of the PCIe exchange chip and a pull-up resistor arranged correspondingly;
and a line led out from a signal terminal SEL of the PCIe switching chip is also connected to the platform control center PCH.
In this embodiment, the first X8 connector, the second X8 connector, the third X8 connector, and the fourth X8 connector are Slimline connectors.
In the embodiment of the invention, only one adapter card needs to be designed and the PCIe bandwidth of the mainboard X16 is occupied, so that the whole system can support one X16 external plug-in card or two X8 external plug-in cards, thereby avoiding the waste of manpower and material resources caused by the need of designing different adapter cards for different configurations;
secondly, under the condition that the PCIe signal distribution of the mainboard is fixed, the redistribution of PCIe signal bandwidth can be realized through the adapter card, and different customer requirements are met; the automatic identification mode is adopted, the flexible allocation of the number of the external plug-in cards and the bandwidth can be realized without additional controllers or manual intervention, and the assembly difficulty and the later operation difficulty of the machine can be obviously reduced.
The specific identification process is given for ease of understanding as follows:
(1) the slot identification circuit identifies the insertion state of an external plug-in card on the PCIe X8 slot;
(2) when the external plug card is not inserted into the PCIe X8 slot, a signal terminal SEL is in a high level, a PCIe signal is switched to a signal terminal Y0, 16 paths of PCIe signals of the central processing unit are all connected to the PCIe X16 slot, and the adapter card supports an X16 external plug card;
(3) when an external plug-in card is inserted into the PCIe X8 slot, the signal terminal SEL is in low level, a PCIe signal is switched to the signal terminal Y1, the PCIe0-7 of the 16-path PCIe signal of the central processing unit is connected to the PCIe X16 slot, the signal PCIe8-15 is connected to the PCIe X8 slot, and the adapter card supports two X8 external plug-in cards.
In the embodiment of the invention, the server board card capable of automatically identifying the external plug-in card comprises a mainboard and a switching card, wherein the mainboard is provided with a platform control center PCH and two X8 connectors for providing PCIe X8 signals, and the switching card is provided with two X8 connectors which are directly connected with the two X8 connectors on the mainboard and correspond to the two X3526 connectors, a PCIe switching chip and a slot identification circuit; the slot identification circuit is connected with the PCIe exchange chip and the PCIe X8 slot, the slot identification circuit is used for identifying the insertion state of an external plug-in card of the PCIe X8 slot and feeding back the identified insertion state to the platform control center PCH and the PCIe exchange chip, and the platform control center PCH carries out PCIe signal configuration according to the identified insertion state of the PCIe X8 slot, so that the identification of the external plug-in card type is realized, and the waste of manpower and material resources caused by the need of designing two adapter cards in different configurations is avoided.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (7)
1. A server board card capable of automatically identifying an external plug-in card comprises a mainboard and a riser card, and is characterized in that a platform control center PCH and two X8 connectors for providing PCIe X8 signals are arranged on the mainboard, and two X8 connectors which are directly connected with and correspond to the two X8 connectors on the mainboard, a PCIe exchange chip and a slot identification circuit are arranged on the riser card;
the slot identification circuit is connected with the PCIe exchange chip and the PCIe X8 slot, the slot identification circuit is used for identifying the insertion state of an external plug-in card of the PCIe X8 slot and feeding back the identified insertion state to the platform control center PCH and the PCIe exchange chip, and the platform control center PCH carries out PCIe signal configuration according to the identified insertion state of the PCIe X8 slot.
2. The server board card capable of automatically identifying external plug-in cards according to claim 1, wherein two X8 connectors on the motherboard are respectively marked as a first X8 connector and a second X8 connector, and the first X8 connector and the second X8 connector are respectively connected with a central processing unit CPU for outputting PCIe X8 signals output by the central processing unit CPU;
the first X8 connector is used for outputting signals of PCIe0-7 output by the central processing unit CPU, and the second X8 connector is used for outputting signals of PCIe8-15 output by the central processing unit CPU.
3. The server board card capable of automatically identifying external plug-in cards according to claim 2, wherein two X8 connectors on the adapter card are respectively identified as a third X8 connector and a fourth X8 connector, wherein one end of the third X8 connector is connected with the first X8 connector, the other end of the third X8 connector is connected with a PCIe X16 slot, one end of the fourth X8 connector is connected with the second X8 connector, and the other end of the fourth X8 connector is connected with the PCIe X8 slot and a PCIe X16 slot respectively through the PCIe switch chip.
4. The server board card capable of automatically identifying external plug-in cards according to claim 3, wherein the PCIe exchange chip is provided with a signal terminal Y0 and a signal terminal Y1, wherein the signal terminal Y0 is connected with the PCIe X16 slot through a PCIe X8 signal line, and the signal terminal Y1 is connected with the PCIe X8 slot through a PCIe X8 signal line.
5. The server board card capable of automatically identifying external plug-in cards according to claim 4, wherein the slot identification circuit comprises an in-place pin of a PCIe X8 slot connected with a signal terminal SEL of the PCIe exchange chip and a pull-up resistor arranged correspondingly;
and a line led out from a signal terminal SEL of the PCIe switching chip is also connected to the platform control center PCH.
6. The server board card capable of automatically identifying external plug-in cards of claim 5, wherein the first X8 connector, the second X8 connector, the third X8 connector and the fourth X8 connector are Slimline connectors.
7. An automatic identification method for an externally-inserted card based on the server board card capable of automatically identifying the externally-inserted card according to any one of claims 1 to 6, wherein the method comprises the following steps:
the slot identification circuit identifies the insertion state of an external plug-in card on the PCIe X8 slot;
when the external plug card is not inserted into the PCIe X8 slot, a signal terminal SEL is in a high level, a PCIe signal is switched to a signal terminal Y0, 16 paths of PCIe signals of the central processing unit are all connected to the PCIe X16 slot, and the adapter card supports an X16 external plug card;
when an external plug-in card is inserted into the PCIe X8 slot, the signal terminal SEL is in low level, a PCIe signal is switched to the signal terminal Y1, the PCIe0-7 of the 16-path PCIe signal of the central processing unit is connected to the PCIe X16 slot, the signal PCIe8-15 is connected to the PCIe X8 slot, and the adapter card supports two X8 external plug-in cards.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010847710.3A CN112069107A (en) | 2020-08-21 | 2020-08-21 | Server board card capable of automatically identifying external plug-in card and external plug-in card automatic identification method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010847710.3A CN112069107A (en) | 2020-08-21 | 2020-08-21 | Server board card capable of automatically identifying external plug-in card and external plug-in card automatic identification method |
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| CN112069107A true CN112069107A (en) | 2020-12-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631664A (en) * | 2020-12-25 | 2021-04-09 | 曙光信息产业股份有限公司 | Signal distribution method and device, computer equipment and readable storage medium |
| CN112737836A (en) * | 2020-12-26 | 2021-04-30 | 苏州浪潮智能科技有限公司 | Bandwidth allocation method, device and equipment for PCIe external plug-in card and storage medium |
| CN113010462A (en) * | 2021-03-12 | 2021-06-22 | 英业达科技有限公司 | Circuit structure and method for automatically adjusting PCIe channel configuration |
| CN114024857A (en) * | 2021-10-13 | 2022-02-08 | 苏州浪潮智能科技有限公司 | Bandwidth switching circuit, system and electronic equipment |
| CN117333348A (en) * | 2023-12-01 | 2024-01-02 | 苏州元脑智能科技有限公司 | Circuit board of graphic processor and server system |
-
2020
- 2020-08-21 CN CN202010847710.3A patent/CN112069107A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631664A (en) * | 2020-12-25 | 2021-04-09 | 曙光信息产业股份有限公司 | Signal distribution method and device, computer equipment and readable storage medium |
| CN112737836A (en) * | 2020-12-26 | 2021-04-30 | 苏州浪潮智能科技有限公司 | Bandwidth allocation method, device and equipment for PCIe external plug-in card and storage medium |
| CN113010462A (en) * | 2021-03-12 | 2021-06-22 | 英业达科技有限公司 | Circuit structure and method for automatically adjusting PCIe channel configuration |
| CN113010462B (en) * | 2021-03-12 | 2023-02-17 | 英业达科技有限公司 | Circuit structure and method for automatically adjusting PCIe channel configuration |
| US11625354B2 (en) | 2021-03-12 | 2023-04-11 | Inventec (Pudong) Technology Corporation | Circuit structure with automatic PCIe link configuration adjustment and method thereof |
| CN114024857A (en) * | 2021-10-13 | 2022-02-08 | 苏州浪潮智能科技有限公司 | Bandwidth switching circuit, system and electronic equipment |
| CN114024857B (en) * | 2021-10-13 | 2023-08-25 | 苏州浪潮智能科技有限公司 | Bandwidth switching circuit, system and electronic equipment |
| CN117333348A (en) * | 2023-12-01 | 2024-01-02 | 苏州元脑智能科技有限公司 | Circuit board of graphic processor and server system |
| CN117333348B (en) * | 2023-12-01 | 2024-02-20 | 苏州元脑智能科技有限公司 | Circuit board of graphic processor and server system |
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