PCIE sub-card-based hot plugging method and apparatus

A hot-swappable, sub-card technology, applied in the field of PCIE bus, to achieve the effect of rapid investigation

Inactive Publication Date: 2017-01-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a method and device based on PCIE daughter card hot-swapping, which solves the problems of hot-swapping scanning and exception handling in the prior art

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  • PCIE sub-card-based hot plugging method and apparatus
  • PCIE sub-card-based hot plugging method and apparatus
  • PCIE sub-card-based hot plugging method and apparatus

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Embodiment Construction

[0041] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0042] figure 1 A flow chart of a method based on PCIE daughter card hot-swapping provided by the embodiment of the present invention is shown, as figure 1 shown, including the following steps:

[0043] Step S101: After the interrupt is triggered due to hot plugging of the PCIE sub-card, the interrupt processing function checks whether the interrupt is an insertion interruption caused by the insertion of the PCIE sub-card, or a pull-out interruption caused by the removal of the PCIE sub-card;

[0044] Step S102: If the check result is an insertion interruption, then the insertion interruption is processed by the interrupt processing function and the poll...

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Abstract

The invention discloses a PCIE (Peripheral Component Interface Express) sub-card-based hot plugging method and apparatus, and relates to the technical field of PCIE buses. The method comprises the following steps that an interruption processing function checks if an interruption is a plugging interruption caused by PCIE sub-card plugging or an unplugging interruption caused by PCIE sub-card unplugging after PCIE sub-card hot plugging causes interruption triggering; if a check result is that the interruption is the plugging interruption, the interruption processing function and a polling thread process the plugging interruption, thereby reporting plugging event information to upper-layer software after a PCIE sub-card is initialized; and if the check result is that the interruption is the unplugging interruption, the interruption processing function and the polling thread process the unplugging interruption, thereby deleting port information corresponding to the PCIE sub-card. According to the method and the apparatus, the hot plugging function of the PCIE sub-card is realized; online power-on and power-off functions are compatible; and exceptions generated in the plugging process can be timely and effectively processed.

Description

technical field [0001] The present invention relates to the field of PCIE bus technology, in particular to a PCIE (Peripheral Component Interconnect Express, high-speed external device interconnect bus) daughter card hot-swappable method and device. Background technique [0002] The PCIE bus is a high-speed external device interconnection bus. It was first advocated and promoted by Intel Intel. Its ultimate design purpose is to replace the bus transmission interface inside the existing computer system. This includes not only the display interface, but also the CPU. (Central Processing Unit, central processing unit), PCI, HDD (Hard Disk Drive, hard disk drive), Network and other application interfaces. [0003] At present, the PCIE bus has been widely used, and the interface daughter card technology has been widely used in core routers. When the EPLD (Erasable Programmable Logic Device, erasable programmable logic device) of the interface card and the motherboard CPU are conn...

Claims

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Application Information

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IPC IPC(8): G06F13/40
CPCG06F13/4068G06F2213/2418G06F13/40
Inventor 田桂良
Owner ZTE CORP
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