Re: [Qemu-devel] [PATCH v8 1/2] virtio-crypto: Add virtio crypto device specification

[Ola Liljedahl]

On 02/09/2016, 16:05, "Alexander Graf" <address@hidden> wrote:

>>>There is a big problem that the control handle logic is synchronization,
>>>but the data queue
>>>handling logic is asynchronization. We can't combine them into one
>>>queue.
>>>It will decrease the performance because you need indentify each packet
>>>if we do this forcedly.
>>Are you saying that control and data operations are handled by separate
>>"blocks???
>>If you combined control and data queues, there would have to be a (SW)
>>demultiplexer
>>that would add overhead (and potentially decrease throughout) especially
>>for the data
>>operations?
>
>Uh, the multiplexer is as simple as a switch() statement on the opcode,
>no?
You are assuming the backend will (always) be implemented in software.

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