Hot-plug/remove of a new component in a running PCIe fabric

Details Hot-plug/remove of a new component in a running PCIe fabric Hot-plug/remove of a new component in a running PCIe fabric

2006-12-19

2010-11-16

Dang, Khanh (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus expansion or extension

C710S008000, C710S016000

Reexamination Certificate

active

07836238

ABSTRACT:
Mechanisms for hot-plug/remove of a new component in a running communication fabric, such as a PCIe fabric, are provided. With these mechanisms, the addition of a new component in the fabric is detected and an event is sent to a multiple root fabric configuration manager. The multiple root fabric configuration manager gathers information about the new component and updates its I/O component tree structure in its configuration data structure to include the new component. The new component may then be utilized via the updated configuration data structure. When a component is to be removed, the multiple root fabric configuration manager receives an event indicating the component to be removed, determines which branches of the tree structure are affected by the removal, and updates its configuration data structure accordingly to remove the component and its associated components from the virtual plane of the removed component.

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