CN112069108A - Flexible server configuration system and method based on PCIE Switch - Google Patents
Flexible server configuration system and method based on PCIE Switch Download PDFInfo
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- 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
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Abstract
The invention discloses a flexible server configuration system and method based on PCIE Switch, and relates to the field of server system design. The configuration system comprises a host unit, a conversion unit and an equipment unit; the host unit is a management board comprising a CPU, and the CPU is used as a root port of the PCIE; the conversion unit is used for expansion of PCIE resources and logic realization under different configurations; the device unit is used for providing identification information for configuration distinction to the conversion unit, and the conversion unit performs dynamic switching of configuration files according to the identification information of the PCIE device. By adopting the scheme, the invention can realize the design self-adaptive configuration of various application scenes related to the PCIE Switch, so that the system realizes the automatic identification, configuration and configuration of management functions such as bandwidth time sequence and the like, avoids the differentiated design caused under various application scenes, improves the design reuse rate, saves the design cost and avoids the resource waste.
Description
Technical Field
The embodiment of the invention relates to the technical field of server system design, in particular to a flexible server configuration system and a flexible server configuration method based on PCIE Switch.
Background
In the design of a server system, a motherboard is usually collocated with different types of daughter cards to implement each function of the system, and a PCIE high-speed bus is generally used to implement transmission of high-speed signals at the motherboard and the daughter card. PCIE belongs to high-speed serial point-to-point double-channel high-bandwidth transmission, and the connected devices distribute independent channel bandwidth and do not share bus bandwidth, and mainly support functions of active power management, error reporting, end-to-end reliable transmission, hot plug, service quality and the like. With the rapid development of information technology and the internet, people have higher and higher requirements on the functions and performances of servers. In some high-density server designs, because the PCIE resources provided by the CPU are limited, the PCIE Switch becomes a bottleneck of architectural design in some application scenarios, and the PCIE Switch can implement extension of PCIE resources, and meanwhile, the PCIE Switch has a wider application scenario and is more flexible in configuration, and can be extended to various devices, such as a hard disk, a memory card, a network card, and the like, according to actual product requirements.
In the current server motherboard design, PCIE Switch expansion under different application scenarios is generally realized through differential design, for example, PCIE Switch expansion NVMe SSD is used for large-capacity storage design, and PCIE Switch card support of another architecture is used in the design of multiple expansion cards, and numerous differential designs lead to that PCIE Switch systems under multiple configurations are difficult to be compatible, on one hand, the system and board multiplexing rate is low, on the other hand, boards related to PCIE Switch have a binding relationship with the overall configuration and application scenarios, leading to a large number of system collocation situations, the design complexity of products is improved, and the design cost is higher.
Disclosure of Invention
The embodiment of the invention provides a flexible server configuration system and method based on a PCIE Switch, which realize self-adaptive configuration based on the PCIE Switch, avoid differentiated design caused under various application scenes, improve the design reuse rate and save the design cost.
In order to achieve the purpose, the invention discloses the following technical scheme:
in one aspect, the present invention provides a flexible server configuration system based on PCIE Switch, where the system includes a host unit, a conversion unit, and an equipment unit;
the host unit is a management board comprising a CPU, and the CPU is used as a root port of the PCIE;
the conversion unit is used for expansion of PCIE resources and logic realization under different configurations;
the equipment unit is used for providing the identification information for configuration distinction to the conversion unit.
Based on the scheme, the system is optimized as follows:
preferably, the conversion unit includes a PCIE Switch, a switching module, a CPLD, and a plurality of Flash memories, where the CPLD controls the switching module to dynamically Switch the configuration files of the PCIE Switch according to different device types in the device unit, and different Flash memories respectively store different configuration files corresponding to different device types in the device unit.
Furthermore, the conversion unit further comprises a power supply control module, and the CPLD performs power supply conversion and time sequence control on different control power supply control modules with power-on time sequence requirements according to different equipment types in the equipment unit.
Further, the device unit is a downlink PCIE device, and includes a device supporting an SSD, a network card, and a Raid card.
Further, the host unit further includes a power supply module, and the power supply module in the host unit is connected with the power supply control module in the conversion unit and supplies power to the PCIE device in the device unit. The power supply control module performs power supply conversion and time sequence control according to different downlink PCIE equipment, before CPLD identification configuration, the PCIE equipment end only needs necessary auxiliary power, after CPLD identification configuration, the main power is powered on according to the requirement of the PCIE equipment and the time sequence.
On the other hand, the invention provides a flexible server configuration method based on PCIE Switch, which comprises the following steps:
taking a management board containing a CPU (central processing unit) as a host unit, wherein the CPU is taken as a root port of PCIE (peripheral component interface express);
setting a conversion unit, wherein the conversion unit is used for expansion of PCIE resources and logic realization under different configurations;
the downlink PCIE equipment provides identification information for configuration distinction for the conversion unit, and the conversion unit performs dynamic switching of configuration files according to the identification information of the PCIE equipment.
Based on the method, the conversion unit specifically comprises a PCIE Switch, a switching module, a power supply control module, a CPLD and a plurality of Flash memories. The CPLD can control the switching module to dynamically Switch the configuration files of the PCIE Switch according to different equipment types in the equipment unit, the Flash memory respectively stores different configuration files corresponding to different PCIE equipment types, and the power supply module in the host unit is connected with the power supply control module in the switching unit and supplies power to the downlink PCIE equipment.
Further, while the conversion unit performs dynamic switching of the configuration file according to the identification information of the PCIE device, the method further includes the following steps:
the switching unit performs power supply switching and time sequence control according to different power-on time sequence requirements of different PCIE equipment types, only necessary auxiliary power is needed at the PCIE equipment end before identification and configuration, and the main power is powered on according to the requirements of the PCIE equipment and the time sequence after identification and configuration.
The effect provided in the summary of the invention is only the effect of the embodiment, not all the effects of the invention, and one of the above technical solutions has the following advantages or beneficial effects:
the flexible server configuration system based on the PCIE Switch provided by the embodiment of the application comprises a host unit, a conversion unit and an equipment unit; the host unit is a management board comprising a CPU, and the CPU is used as a root port of the PCIE; the conversion unit is used for expansion of PCIE resources and logic realization under different configurations; the device unit is used for providing identification information for configuration distinction to the conversion unit, and the conversion unit performs dynamic switching of configuration files according to the identification information of the PCIE device. By adopting the technical scheme, the invention can realize the design self-adaptive configuration of the PCIE Switch related to various application scenes, so that the system realizes the automatic identification, configuration and the completion of the configuration of management functions such as bandwidth time sequence and the like, and the differentiated design caused by various application scenes is avoided. The configuration system can be applied to PCIE Switch related product design, improves the design reuse rate, saves the design cost and avoids the resource waste.
The flexible server configuration method based on the PCIE Switch provided in the embodiment of the present application can adopt the flexible server configuration system based on the PCIE Switch, and obtain the above technical effects.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural diagram of a flexible server configuration system based on PCIE Switch according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a flexible server configuration method based on PCIE Switch according to an embodiment of the present application;
reference numerals:
1-host unit, 2-conversion unit and 3-equipment unit.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. 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.
Fig. 1 shows a schematic structural diagram of a flexible server configuration system based on PCIE Switch according to an embodiment of the present invention.
Referring to fig. 1, a flexible server configuration system based on PCIE Switch in this embodiment includes a host unit 1, a conversion unit 2, and an equipment unit 3;
the host unit 1 is a management board including a CPU, and the CPU is used as a root port of the PCIE;
the conversion unit 2 is used for expansion of PCIE resources and logic implementation under different configurations;
the device unit 3 is used to provide the identification information for configuration discrimination to the conversion unit.
Specifically, as shown in fig. 1, the conversion unit 2 includes a PCIE Switch, a switching module, a power supply control module, a CPLD, and a plurality of Flash memories. The device unit 3 is a downstream PCIE device, and includes a device supporting an SSD, a network card, and a Raid card. A power supply module is arranged in the host unit 1, and the power supply module in the host unit 1 is connected with the power supply control module in the conversion unit 2 and supplies power to the PCIE device in the device unit 3.
More specifically, in the configuration system, the CPLD controls the switching module to dynamically Switch the configuration files of the PCIE Switch according to different PCIE device types in the device unit 3, and different configuration files are respectively stored in the Flash memories corresponding to different device types in the device unit. And meanwhile, the CPLD controls the power supply control module to perform power supply conversion and time sequence control according to different equipment types in the equipment unit, the PCIE equipment end only needs necessary auxiliary power before the CPLD is identified and configured, and the main power finishes power supply according to the requirement of the PCIE equipment and the time sequence after the CPLD is identified and configured.
Based on the setting, the system of the embodiment adopts a mode of matching software and hardware to realize flexible configuration of the system, and does not restrict specific implementation details. For example, a CPLD is designed in the conversion unit 2, dynamic identification and setting of configuration are realized by programming, and the configured dynamic identification logic needs to be determined in combination with a downlink PCIE device. For a specific PCIE Device, the Device ID may be stored in a programmable logic Device such as an EEPROM, a CPLD, or implemented by several bits of GPIO. By GPIO implementation is meant that the devices are code differentiated, e.g., Device1 00, Device2 01, Device3 10, etc., the choice of implementation depends on the particular design. In addition, different configuration files are stored in different flashes, corresponding device management schemes are different and need to be set individually after different devices are identified, and details of the management schemes depend on specific designs. For example, when the downstream PCIE device is a hard disk backplane, the PCIE Switch needs to perform hard disk management, and when the downstream PCIE device is connected to a general 2.5-inch Nvme hard disk and is connected to special-form hard disks such as e1.s and m.2, different management schemes are selected due to interface differences.
In the flexible server configuration system based on PCIE Switch of this embodiment, when in use, first, the host unit 1 and the conversion unit 2 are powered on, the relevant function modules start to operate, the PCIE Device end is only used to power on the relevant design modules for configuration and identification, and the CPLD reads the unique identification code Device ID of the downlink PCIE Device. Next, the CPLD controls the switching module according to the category of the downlink PCIE device to implement dynamic switching of the configuration files of the PCIE Switch, and this technical solution may support multiple configuration files, including allocation and mapping of the high-speed signal and the management signal provided to the downlink device, where different management modes corresponding to the downlink device are different. For example, when the downlink supports X4 Nvme SSD or X2 Nvme SSD, different hard disk management schemes need to be adopted due to fixed interface and difference of management signal number, and GPIO or serial bus can be flexibly switched. While the CPLD controls the switching module to realize dynamic switching of the PCIE Switch configuration file, the CPLD performs power supply conversion and time sequence control on different control power supply control modules with power-on time sequence requirements according to different equipment types. The system of the embodiment can realize the design self-adaptive configuration of various application scenes related to the PCIE Switch, realize the configuration of management functions such as automatic identification, configuration and completion of bandwidth time sequence, improve the design reuse rate and save the design cost.
Fig. 2 shows a schematic flow chart of a flexible server configuration method based on PCIE Switch according to an embodiment of the present invention.
Referring to fig. 2, a flexible server configuration method based on PCIE Switch in this embodiment includes the following steps:
s1, taking a management board containing a CPU as a host unit, wherein the CPU is taken as a root port of PCIE;
s2, setting a conversion unit, wherein the conversion unit is used for expansion of PCIE resources and logic implementation under different configurations;
s3, the downlink PCIE device provides identification information for configuration distinction to the conversion unit, and the conversion unit performs dynamic switching of the configuration file according to the identification information of the PCIE device.
Specifically, in step S2, the conversion unit specifically includes a PCIE Switch, a switching module, a power supply control module, a CPLD, and a plurality of Flash memories. The CPLD can control the switching module to dynamically Switch the configuration files of the PCIE Switch according to different equipment types in the equipment unit, the Flash memory respectively stores different configuration files corresponding to different PCIE equipment types, and the power supply module in the host unit is connected with the power supply control module in the switching unit and supplies power to the downlink PCIE equipment.
Further, in step S3, while the converting unit performs dynamic switching of the configuration file according to the identification information of the PCIE device, the method further includes the following steps:
the switching unit performs power supply switching and time sequence control according to different power-on time sequence requirements of different PCIE equipment types, only necessary auxiliary power is needed at the PCIE equipment end before identification and configuration, and the main power is powered on according to the requirements of the PCIE equipment and the time sequence after identification and configuration.
For the content that is not described in detail in the method for flexibly configuring a server based on a PCIE Switch provided in the embodiment of the present application, reference may be made to the system for flexibly configuring a server based on a PCIE Switch provided in the above embodiment, and details are not described here.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that any modification, improvement and equivalent substitution made without departing from the principle of the present invention are included in the protection scope of the present invention.
Claims (8)
1. A flexible server configuration system based on PCIE Switch is characterized by comprising a host unit, a conversion unit and an equipment unit;
the host unit is a management board comprising a CPU, and the CPU is used as a root port of the PCIE;
the conversion unit is used for expansion of PCIE resources and logic realization under different configurations;
the equipment unit is used for providing the identification information for configuration distinction to the conversion unit.
2. The flexible server configuration system according to claim 1, wherein the conversion unit includes a PCIE Switch, a switching module, a CPLD, and a plurality of Flash memories, the CPLD controls the switching module to perform dynamic switching of the configuration files of the PCIE Switch according to different device types in the device unit, and the Flash memories respectively store different configuration files corresponding to different device types in the device unit.
3. The flexible server configuration system according to claim 2, wherein the conversion unit further includes a power supply control module, and the CPLD performs power supply conversion and timing control on the power supply control module with different control requirements for power-on timing according to different device categories in the device unit.
4. The flexible server configuration system according to claim 3, wherein the device unit is a downstream PCIE device including a device supporting an SSD, a network card and a Raid card.
5. The flexible server configuration system according to claim 4, wherein the host unit further includes a power supply module, and the power supply module in the host unit is connected to the power supply control module in the conversion unit and supplies power to PCIE devices in the device unit.
6. The flexible server configuration system according to claim 5, wherein the power supply control module performs power supply conversion and timing control according to a difference between downlink PCIE devices, before the CPLD identification configuration, the PCIE device end only needs necessary auxiliary power, and after the CPLD identification configuration, the main power is powered on according to a requirement of the PCIE device in a timing sequence.
7. A flexible server configuration method based on PCIE Switch is characterized by comprising the following steps:
taking a management board containing a CPU (central processing unit) as a host unit, wherein the CPU is taken as a root port of PCIE (peripheral component interface express);
setting a conversion unit, wherein the conversion unit is used for expansion of PCIE resources and logic realization under different configurations;
the downlink PCIE equipment provides identification information for configuration distinction for the conversion unit, and the conversion unit performs dynamic switching of configuration files according to the identification information of the PCIE equipment.
8. The flexible server configuration method according to claim 7, wherein the switching unit performs dynamic switching of configuration files according to identification information of PCIE devices, and further includes the following steps:
the conversion unit performs power conversion and time sequence control on the difference of power-on time sequence requirements according to different PCIE equipment types, only necessary auxiliary power is needed at the PCIE equipment end before identification and configuration, and the main power is powered on according to the requirements of the PCIE equipment and the time sequence after identification and configuration.
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| CN202010876925.8A CN112069108A (en) | 2020-08-27 | 2020-08-27 | Flexible server configuration system and method based on PCIE Switch |
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| CN202010876925.8A CN112069108A (en) | 2020-08-27 | 2020-08-27 | Flexible server configuration system and method based on PCIE Switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114817107A (en) * | 2022-06-28 | 2022-07-29 | 深圳云豹智能有限公司 | PCIE equipment switching system, method and device, computer equipment and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114817107A (en) * | 2022-06-28 | 2022-07-29 | 深圳云豹智能有限公司 | PCIE equipment switching system, method and device, computer equipment and storage medium |
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Application publication date: 20201211 |
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