Avago Technologies General IP (Singapore) Pte. Ltd.

Rajesh Prabhakaran

Atul Mukker

Moby J Abraham

Chennakesava Arnoori

Systems and methods presented herein provide for resetting a controller in a Single Root Input/Output Virtualization (SR-IOV) architecture. The architecture includes a physical function that periodically issues a heartbeat command to a physical function of an SR-IOV controller, starts a first timer, determines a firmware failure of the controller upon expiration of the first timer, and issues a command to reset the firmware of the controller. The architecture also includes a plurality of a virtual function drivers coupled to a plurality of virtual functions of the controller. Each virtual function driver periodically issues a heartbeat command to its corresponding virtual function, starts a second timer having a duration that is less than a duration of the first timer, determines a firmware failure of the controller upon expiration of the second timer, and pauses input/output operations to its corresponding virtual function until the firmware of the controller is reset.

Growing community of inventors

Norcross, GA, United States of America

Rajesh Prabhakaran