Intelligent PCI bridging consisting of prefetching data based upon descriptor data
US7424562B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2004 |
| Grant date | Sep 9, 2008 |
| Priority date | — |
| Expiry date | Nov 3, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4027
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A bridging device has at least two ports. The first port allows the device to communicate with devices on an expansion bus and at least one other port to allow the bridge to communicate with a system memory on a system bus or other devices on another expansion bus. The device is capable of identifying at least two regions in memory, a descriptor region and a data region. A descriptor provides information about segments of data in the data region. The bridge may detect descriptors read from the memory, extract information related to data associated with those descriptors and use this information to perform prefetching of data from the system memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.