[OASIS Issue Tracker] (VIRTIO-132) ccw: handling of more than 64 virtqueues

[OASIS Issues Tracker <workgroup_mailer@lists.oasis-open.org>]

Cornelia Huck created VIRTIO-132:
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             Summary: ccw: handling of more than 64 virtqueues
                 Key: VIRTIO-132
                 URL: https://issues.oasis-open.org/browse/VIRTIO-132
             Project: OASIS Virtual I/O Device (VIRTIO) TC
          Issue Type: Bug
    Affects Versions: virtio 1.0 cs02, virtio 1.0 cs01
         Environment: Cornelia Huck <cornelia.huck@de.ibm.com>
            Reporter: Cornelia Huck
            Assignee: Cornelia Huck


For virtio-ccw devices using classic queue indicators, we cannot handle devices with more than 64 queues as the indicator value is a 64 bit integer and we would not be able to notify for the higher number virtqueues. The driver needs to use two-stage indicators if a device has more than 64 virtqueues.



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