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:
May. 17, 2016
Filed:
Nov. 07, 2013
International Business Machines Corporation, Armonk, NY (US);
Jesse P. Arroyo, Rochester, MN (US);
Anjan Kumar Guttahalli Krishna, Hyderabad, IN;
INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US);
Abstract
Instead of disabling PCI communication between system resources in a host computing device and I/O devices when a PCI Host Bridge (PHB) is reset, the host computing device may include a PCI communication path for maintaining communication between the system resources and the I/O devices. In one embodiment, the redundant PCI communication path includes a second PHB that is maintained in a standby state. The host may monitor the errors generated by a plurality of master PHBs and select a master PHB that satisfies an error threshold. The second PHB (i.e., a servant PHB) and the selected master PHB are synchronized, and the second PHB is coupled to the PCI communication path between the master PHB and a PCI switch. The master PHB can then be reset while the second PHB maintains PCI communication between the host and the I/O devices.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile