s390x/virtio-ccw: Adapter interrupt support.
Handle the new CCW_CMD_SET_IND_ADAPTER command enabling adapter interrupts on guest request. When active, host->guest notifications will be handled via global_indicator -> queue indicators instead of queue indicators + subchannel I/O interrupt. Indicators for virtqueues may be present at an offset. Acked-by:Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by:
Cornelia Huck <cornelia.huck@de.ibm.com>
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