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. 05, 2015
Filed:
Dec. 13, 2012
Lsi Corporation, Milpitas, CA (US);
Naresh Madhusudana, Devarabeesanahalli Bangalore, IN;
Raghavendra Channagiri Nagendra, Devarabeesanahalli Bangalore, IN;
Giridhar Danayakanakeri, Devarabeesanahalli Bangalore, IN;
Avago Technologies General IP (Singapore) Pte Ltd, Singapore, SG;
Abstract
An expander for a device architecture, such as a SAS-compatible expander for a SAS architecture, is configured to follow a set of discovery rules that are applied following detection of a discovery-triggering event, such as system power up or reset. According to one of the discovery rules, the expander waits until after a specified duration following the detected discovery-triggering event before passing on, to any other expanders, any requests to check the status of their discovery processing. Using appropriate values for the specified durations for different expanders, the discovery procedure will be performed without any infinite-messaging problems, even when the device architecture has a loop.