Virtualization of hardware queues in self-virtualizing input/output devices

摘要

Hardware transmit and/or receive queues in a self-virtualizing IO resource are virtualized to effectively abstract away resource-specific details for the self-virtualizing IO resource. By doing so, a logical partition may be permitted to configure and access a desired number of virtual transmit and/or receive queues, and have an adjunct partition that interfaces the logical partition with the self-virtualizing IO resource handle the appropriate mappings between the hardware and virtual queues.

主权项

1. A method of accessing a self-virtualizing input/output (IO) resource with multiple logical partitions in a data processing system, the method comprising:
interfacing a logical partition of the multiple logical partitions to the self-virtualizing IO resource through an associated adjunct partition; and in the associated adjunct partition, mapping a plurality of virtual queues in the logical partition to a plurality of hardware queues in the self-virtualizing IO resource.