Buffer reservation method for a bus bridge system
US5815677A · kind A · utility
30Cited by
1References
36Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1996 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Dec 31, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4059
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for transferring data through a bus bridge. The bus bridge includes a number of data buffers for storing data, prefetching data and write posting data. A device communicating with the bus bridge may reserve a buffer by one of two reservation mechanism. The reservation mechanism provides the bus bridge with the address and byte count. The reservation may also be forwarded to any upstream bus bridges. The reserved buffers are prefetched for efficient use of bus access. Data is prefetched and flushed according to alternative algorithms if a buffer is not reserved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.