PERIPHERAL I/O DEVICE WITH ASSIGNABLE I/O AND COHERENT DOMAINS

Examples herein describe a peripheral I/O device with a hybrid gateway that permits the device to have both I/O and coherent domains. That is, the I/O device can benefit from a traditional I/O model where the I/O device driver manages some of the compute resources in the I/O device as well as the be...

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Bibliographic Details
Main Authors AHMAD, Sagheer, DASTIDAR, Jaideep, SWARBRICK, Ian A
Format Patent
LanguageEnglish
French
German
Published 06.03.2024
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:Examples herein describe a peripheral I/O device with a hybrid gateway that permits the device to have both I/O and coherent domains. That is, the I/O device can benefit from a traditional I/O model where the I/O device driver manages some of the compute resources in the I/O device as well as the benefits of adding other compute resources in the I/O device to the same coherent domain used by the hardware in the host computing system. As result, the compute resources in the coherent domain of the peripheral I/O device can communicate with the host in a similar manner as, e.g., CPU-to-CPU communication in the host. At the same time, the compute resources in the I/O domain can benefit from the advantages of the traditional I/O device model which provides efficiencies when doing large memory transfers between the host and the I/O device (e.g., DMA).
Bibliography:Application Number: EP20200722860