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. 30, 2020
Filed:
May. 01, 2018
Dell Products L.p., Round Rock, TX (US);
Anh Dinh Luong, Austin, TX (US);
Thomas Kelley Chenault, Round Rock, TX (US);
Dell Products L.P., Round Rock, TX (US);
Abstract
A link downgrade detection system includes an interface that is coupled to an endpoint device. The endpoint device is configured to provide an endpoint link that includes a first link capability at a maximum first link capability level and a second link capability at a maximum second link capability level. The endpoint device stores a working first link capability level and a working second link capability level in a first memory device included on the endpoint device. A BIOS coupled to the chassis interface enumerates the endpoint device, determines an actual first link capability level and an actual second link capability level, and retrieves the working link capability levels. The BIOS then determines, based on the working link capability levels and the actual link capability levels that the endpoint link is downgraded, and in response provides a notification that the endpoint link of the endpoint device is downgraded.