Message transport mechanisms and methods
US5983292A · kind A · utility
43Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1997 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Oct 15, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/126
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An I/O system including a processor complex and system main memory connected to I/O adapters via I/O adapters and I/O bus. A message transport mechanism and method stores an upstream message queue and a downstream message queue in system main memory. Queue addresses are stored both in system main memory and designated registers of I/O adapters. The I/O adapters utilize the queue addresses to manage the transfer of downstream command messages and to send upstream response messages to the system main memory via direct memory access across the I/O bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.