[OASIS Issue Tracker] Created: (VIRTIO-13) Remove VIRTIO_F_NOTIFY_ON_EMPTY?

Remove VIRTIO_F_NOTIFY_ON_EMPTY?

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Key: VIRTIO-13
URL:  http://tools.oasis-open.org/issues/browse/VIRTIO-13
Project: OASIS Virtual I/O Device (VIRTIO)

TC
Issue Type: Improvement
Reporter: Rusty Russell
Notify on empty means that the device interrupts even if it wouldn't normally, in the case where a normally-full virtqueue is empty.  ISTR this was a performance hack; it's no longer used in Linux anyway, and performance issues may have been due to a race which sometimes lost interrupts :)

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