The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 27, 2017
Filed:
Jun. 26, 2015
Huawei Technologies Co., Ltd., Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method for extending a Peripheral Component Interconnect Express (PCIe) domain. A configuration space address can be allocated to a PCIe device in an extended domain from a memory address of a root complex endpoint device, a correspondence between the configuration space address and a bus number/device number/function number (BDF) can be established, and a bus number can be allocated from a second bus set of the extended domain to a PCIe device discovered in the extended domain, where the bus number is used for determining the BDF of the PCIe device discovered in the extended domain, so as to access, according to the correspondence between the configuration space address and the BDF and by using the BDF of the PCIe device discovered in the extended domain, a configuration space register of the PCIe device discovered in the extended domain.