Lane reversal detection and bifurcation system
US10474612B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2018 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Oct 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4411
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A lane reversal detection and bifurcation system includes an interface that includes a plurality of lanes that are coupled to an endpoint interface of an endpoint device and a BIOS that bifurcates the interface into a first root port and a second root port, such that the first root port is coupled to a first subset of the plurality of lanes, and the second root port is coupled to a second subset of the plurality of lanes. The BIOS initializes the endpoint device to establish a link between the endpoint device and the interface. The BIOS detects an endpoint presence and a non-functional link at the first root port and an endpoint presence and a functional link at the second root port and, in response, determines that the first subset of the plurality of lanes coupled to the endpoint device are subject to a lane reversal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.