Address based hardware snoop logic with configurable snoopable space settings for hardware assist

US12306758B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Howard M. Haynie · Wappingers Falls, US
• Michael James Becht · Poughkeepsie, US
• Mushfiq U. Saleheen · Poughkeepsie, US
• Dan Vangor · Mahopac, US
• Girish G. Kurup · Khadki, IN
• Luke M. Hopkins · Peterborough, US
• Bruce H. Ratcliff · Red Hook, US

Key dates

• Filing date: Oct 31, 2023
• Grant date: May 20, 2025
• Expiry date: Jan 2, 2044

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F12/123
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Systems and techniques for snooping input/output (I/O) events in a computing system are described. An example technique includes obtaining a configuration comprising a plurality of snoop space profiles, each snoop space profile indicating a respective range of memory addresses that map to a respective completion queue. The technique also includes monitoring input/output (I/O) traffic exchanged across a communication interface between an I/O adapter and a processor in a computing system, based on the configuration. The technique further includes performing one or more actions to assist processing of the I/O traffic, based in part on the monitoring.