Computer interface for direct mapping of application data

Details Computer interface for direct mapping of application data Computer interface for direct mapping of application data

G - Physics

06

F

G06F 9/46 (2006.01) G06F 12/10 (2006.01) H04Q 11/04 (2006.01) H04L 12/56 (2006.01)

Patent

CA 2274031

A computer interface system for communicating between computers along designated ciruits is provided. An interface unit is provided in each host computer. Each unit includes a memory map that stones a map of physical addresses that correspond to virtual addresses for each application involved in a communication link. Each transfer of data is designated by a circuit that is established using the ATM protocol. The circuit is recognized by each unit involved in the communication and facilitates direct access of each host computer's main memory with minimum intervention from the operating system. A novel dynamic buffer management system is also provided.

La présente invention concerne un système d'interface d'ordinateur assurant la communication entre ordinateurs via des circuits désignés. En l'occurrence, un module d'interface équipe chaque ordinateur, chaque module d'interface mettant en oeuvre un topogramme mémoire destiné au stockage d'un topogramme d'adresses physiques correspondant à des adresses virtuelles de chacune des applications concernées par une liaison de communication. Chaque transfert de données fait l'objet d'une désignation de la part d'un circuit établi sous protocole ATM. Chaque module d'interface intervenant dans la communication reconnaît ce circuit qui favorise l'accès direct à la mémoire principale de chaque ordinateur hôte, et ce, avec un minimum d'intervention de la part du système d'exploitation. L'invention concerne également un système de gestion dynamique des tampons.

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