Error reporting when reading data
US10970155B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2019 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Sep 29, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/0026
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
System and method for performing a read transaction between a requester device, such as a host processor, and a completer device, such as a peripheral device. A device driver operating on the requester device receives a read request including a target address at which target data is to be read on the completer device. The length of the read request is increased from an initial length by an additional length for exchanging information with the completer device. The completer device generates and sends a read response comprising the target data and information about the target data. The length of the target data is equal to the initial length and the length of the information about the target data is less than or equal to the additional length. The device driver receives the read response and performs a resolution operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.