Differentiating traffic types in a multi-root PCI express...

Details Differentiating traffic types in a multi-root PCI express... Differentiating traffic types in a multi-root PCI express...

2011-03-22

2011-03-22

Myers, Paul R (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S114000

Reexamination Certificate

active

07913024

ABSTRACT:
Mechanisms for differentiating traffic types in a multi-root PCI Express environment are provided. The mechanisms generate a first mapping data structure that, for each single-root virtual hierarchy in the multi-root data processing system, associates a plurality of traffic classes with a plurality of priority groups and maps each traffic class in the plurality of traffic classes to a corresponding virtual channel in a plurality of virtual channels. Moreover, a second mapping data structure is generated that maps each virtual channel in the plurality of virtual channels to corresponding virtual link in a plurality of virtual links of the multi-root data processing system. Traffic of a particular priority group is routed from a single-root virtual hierarchy to a particular virtual link in the plurality of the virtual links based on the first mapping data structure and second mapping data structure.

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USPTO U.S. Appl. No. 12/346,251, 2 pages.
Final Office Action mailed Jan. 5, 2011 for U.S. Appl. No. 12/346,251; 21 pages.
Response to Office Action filed with the USPTO on Nov. 5, 2010 for U.S. Appl. No. 12/346,251, 17 pages.

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