Connected input/output hub management

US8489793B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Gerd Bayer · Stuttgart, DE
• Beth A. Glendening · Poughkeepsie, US
• Thomas A. Gregg · Highland, US
• Michael Jung · Frankfurt am Main, DE
• Elke G. Nass · Ehningen, DE
• Peter K. Szwed · Kingston, US

Key dates

• Filing date: Jun 23, 2010
• Grant date: Jul 16, 2013
• Expiry date: Apr 2, 2031

Classification

• Technology area (CPC —): General

Abstract

A method for implementing connected input/output (I/O) hub configuration and management includes configuring a first I/O hub in wrap mode with a second I/O hub. The hubs are communicatively coupled via a wrap cable. The method further includes generating data traffic on a computing subsystem that includes the hubs. Generating traffic includes: converting, via the first hub, a request to implement a transaction into an I/O device-readable request packet and transmitting the request packet over the wrap cable; converting, via the second hub, the I/O device-readable (IODR) request packet into a system readable request and transmitting the request over a system bus; converting, via the second hub, the response to an IODR response packet, and transmitting the response packet over the wrap cable; and converting, via the first hub, the IODR response packet into a system readable response packet, and transmitting the response packet over the system bus.