RE: [PATCH 0/4] RFC: "New" /dev/crypto user-space interface

["Loc Ho" <lho@apm.com>]

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> 1. This CrytoDev (user space) interface needs to support multiple
> operations at once

I think this would be naturally solved by providing the async interface.
[Loc Ho]
Async only support a single operation at a time. HW are quite fast. The ability to submit multiple payload for a single OS call improve in performance. The software overhead with the submission alone can be more than a single encrypt/decrypt/hashing operation.

-Loc

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