Apparatus for transferring blocks of information from one node to a second node in a computer network
US4777595A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1986 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Mar 24, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/167
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method and apparatus for transfer of packet-type information from the memory (24B) of one node (14) in a computer network to the memory (24C) of another node (16) in the network. The invention is of particular utility in transfers over serial buses (e.g., 18). Packets are sent from a named memory buffer (25A) at a first node (14) to a named memory buffer (25C) at a second node (16), allowing random access by the first node to the memory of the second node without either node having to have knowledge of the memory structure of the other, the source and destination buffer names are contained right in the transmitted packet. The first node (14) can both write to and read from the second node (16). An opcode (40A) sent in each packet signifies whether a read or write operation is to be performed. For reading from the second node, the opcode actually causes the second node to write back to the first node; in this situation, the second node, upon detecting the appropriate opcode, places the remainder of the received packet on a command queue (202), to be executed with the commands locally generated at the second node, without need for host interruption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.