Buffer management and transaction control for serial I/O systems

A method and implementing computer system are provided which allows for significantly improved input/output (I/O) subsystem designs in all systems which include serialized I/O transactions such as so-called Express specification systems. Transaction control methodology is implemented to improve Expr...

Full description

Saved in:
Bibliographic Details
Main Authors KELLEY RICHARD A, NEAL DANNY MARVIN
Format Patent
LanguageEnglish
Published 29.01.2004
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:A method and implementing computer system are provided which allows for significantly improved input/output (I/O) subsystem designs in all systems which include serialized I/O transactions such as so-called Express specification systems. Transaction control methodology is implemented to improve Express design requirements for Express devices such as an Express switch, Express-PCI bridge, endpoint, and root complex. This is accomplished by utilizing improved transaction ordering and state machine and corresponding buffer design and improved flow control credit methodology which enables improved processing for controlling transactions flowing through Express devices including Express switches and Express-PCI bridges. An Express-PCI/PCIX transition bridge design is also provided, along with the flow control credit methodology and implementation within the Express-PCI/PCIX bridge design to enable efficient interfacing between Express and legacy or existing PCI/PCIX systems.
Bibliography:Application Number: US20020207471