System for transferring a data directly from/to an address space

Details System for transferring a data directly from/to an address space System for transferring a data directly from/to an address space

1997-07-30

2000-04-04

Lee, Thomas C.

Electrical computers and digital data processing systems: input/

Input/output data processing

Data transfer specifying

710 19, 710 39, 710 56, 710112, 709212, 709218, G06F 1314

Patent

active

06047338&

ABSTRACT:
The present invention discloses a method, apparatus, and article of manufacture comprising a high performance interface for sending data to a remote device and receiving data from a remote device via a data communications device coupled to a processor. In performing these functions, the high performance interface supports asynchronous input/output operations. Moreover, the high performance interface transfers the data directly to and from the address space of a calling program, thereby eliminating use of intermediate buffers. In those instances where the calling program has not invoked the high performance interface, data can be stored in the address space of the operating system until the high performance interface is invoked by the calling computer program. Further, status can be returned to a remote device using back-channel capabilities.

REFERENCES:
patent: 5437013 (1995-07-01), Rubin et al.
patent: 5519845 (1996-05-01), Birch et al.
patent: 5689566 (1997-11-01), Nguyen
patent: 5805920 (1998-09-01), Sprenkle et al.
Steenkiste, Peter A. --Carnegie Mellon University, A Systematic Approach to Host Interface Design for High-Speed Networks, Mar. 1994, pp. 47-57.

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