Flow control timeout mechanism to detect PCI-express forward progress blockage
US8151145B2 · kind B2 · utility
2Cited by
0References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2008 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Nov 8, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/0793
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for detecting lack of forward progress in a PCI Express includes a step in which a data flow measurement is received or performed. This data flow measurement provides the capacity of the connected Switch or Endpoint device to receive data packets from a Root Complex transmit channel. An error is logged when the data flow measurement does not substantially change in a predetermined period of time. A recovery protocol is executed after logging of the error. A system implementing the method of the invention is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.