Apparatus and method for packet communications
US5436892A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Nov 22, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/9021
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for enabling disassembly of packets into their components and for assignment of main storage areas without software intervention in the reception processing of a communications network. Direct partition is enabled by hardware without intervention of software by adding control information directly accessible by the receiving DMA feature 6 to each communications packet. The transmitting DMA feature 6 transfers the contents of the DMA command queue to the communications control unit 7 before transferring the data in computer storage 10 to the communications control unit 7. This information is added to the top of each packet before being passed to the receiving end. The receiving DMA feature 6 transfers each whole packet not to a single reception buffer but to different reception buffers in element data units by use of both this information and the information in the DMA command queue at the receiving end. Communications software makes use of each reception buffer as it is without copying it onto another area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.