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Method and device for reading field replaceable unit information

A chip and adapter card technology, applied in program control devices, program control design, instruments, etc., can solve problems such as inability to obtain FRU information, unfavorable version maintenance and upgrades, and achieve the effect of reducing interaction

Active Publication Date: 2020-05-12
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. When BMC fails, BIOS will not be able to obtain FRU information
[0004] 2. The interaction between BIOS and BMC will lead to the interdependence of the two versions, which is not conducive to the subsequent maintenance and upgrade of the version.

Method used

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  • Method and device for reading field replaceable unit information
  • Method and device for reading field replaceable unit information
  • Method and device for reading field replaceable unit information

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The embodiment of the present invention illustrates the process of reading FRU information based on BIOS:

[0072] S11: Set the control right of the SMBUS bus to the PCH (PlatformControl Hub, platform controller) of the server motherboard through the I2C arbitration chip;

[0073] S12: Scan all the I2C settings mounted on the current bus, and judge the currently in-position RISER card (transfer card, a transfer card for extending the PCIE device) according to the scanned device address;

[0074] S13: Set the control register of the I2C device selection chip on the PCIE RISER card, and select the EEPROM chip that stores the FRU information;

[0075] S14: Read the storage information in the EEPROM according to the I2C communication specification;

[0076] S15: Parse the read data and send related information to SMBIOS.

Embodiment 2

[0078] The embodiment of the present invention illustrates reading FRU information equipment through BIOS, such as image 3 As shown, the device mainly includes: bus dual-master device BIOS and BMC, bus arbitration unit, I2C switch control unit and FRU information storage unit.

[0079] The dual master device BIOS and BMC, as the master device of SMBUS, can communicate with other devices under the bus according to the communication protocol in the SMBUS specification.

[0080] The bus arbitration unit realizes the dual-master selection function of the I2C bus. The upstream is connected to two master devices, and the downstream is connected to a slave. The bus can be switched between the two master devices.

[0081] The I2C switch control unit and the FRU information storage unit select the EEPROM by setting the control register of the I2C control unit, and read the required information.

Embodiment 3

[0083] Such as Figure 4 As shown, the embodiment of the present invention illustrates the process of reading FRU information based on BIOS:

[0084] S21: When the server restarts, the required GPIO is set to a high level by default;

[0085] S22: In the DXE stage, the BIOS detects that the CPIO# level is high, and then sends a command through the PCH to set the control register of the bus arbiter and occupy the bus;

[0086] S23: Read the control register of the bus arbiter, if the PCH is the master device, scan the slave devices connected to the bus to obtain the device address;

[0087] S24: Screen the current RISER card on the motherboard according to the device address and the preset address range;

[0088] S25: set the selection register of the I2C switch chip on the RISER card, and select EEPROM;

[0089] S26: Send the EEPROM device address and byte address and obtain the required FRU information through the read operation;

[0090] S27: Determine whether the read d...

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Abstract

The invention discloses a method and a device for reading field replaceable unit (FRU) information, and relates to the field of FRU information obtainment, and the method comprises the steps: settingthe control right of a system management bus (SMBUS) as a controller of a server mainboard when an instruction for reading a field replaceable unit (FRU) is received; determining an in-place riser card; determining an EEPROM (Electrically Erasable Programmable Read-Only Memory) chip corresponding to the in-place riser card; and reading the FRU information in the EEPROM chip. Distinguishing of multiple different configurations can be met, and interaction with the BMC in the starting process is effectively reduced.

Description

technical field [0001] The invention relates to the field of FRU (Field Replacement Unit, field replaceable unit) information acquisition, especially a method and device for reading field replaceable unit information. Background technique [0002] In recent years, with the development of big data and cloud computing and other services, servers have gradually spread to all walks of life, and customer demand has increased year by year. For the same type of server, customers often choose different PCIE (peripheral component interconnect express, a high-speed serial computer expansion bus standard) configuration according to different application scenarios, and its core firmware BIOS (Basic Input Output System, Basic Input Output System ) needs to read the current PCIE device information and save it in the SMBIOS (System Management BIOS, basic input and output system management) entry, so as to display the configuration information of the current motherboard under the system or ...

Claims

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Application Information

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IPC IPC(8): G06F13/16G06F9/445
CPCG06F13/1605G06F9/44578G06F2213/0016
Inventor 李道童李婷婷
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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