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Subject: [OASIS Issue Tracker] Created: (VIRTIO-12) Size descriptor table independent of ringsize?


 Size descriptor table independent of ringsize?
-----------------------------------------------

                 Key: VIRTIO-12
                 URL: http://tools.oasis-open.org/issues/browse/VIRTIO-12
             Project: OASIS Virtual I/O Device (VIRTIO) TC
          Issue Type: Improvement
            Reporter: Rusty Russell


The descriptor table is currently the same size and the available and used rings, but there's no reason it has to be that way.

Arguments for independent sizing:
1) Ring will be underutilized by some factor if each entry uses multiple descriptors.

Arguments for:
1) It's simple.
2) Indirect descriptors allow a single descriptor per entry anyway.

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