Re: [PATCH v2 0/4] Introduce bulk mode for crypto engine framework

From: Herbert Xu
Date: Mon Apr 18 2016 - 04:42:47 EST

On Mon, Apr 18, 2016 at 04:40:36PM +0800, Baolin Wang wrote:
> Simply to say, now there are many different hardware engines for
> different vendors, some engines can support bulk block but some can
> not (or no cipher hardware engine), then the dm-crypt can not know
> your hardware engine features. If the dm-crypt send one bulk block to
> low level, but the engine driver can not support bulk block, then it
> will crash. So we did the merging action in driver level not dm-crypt
> level.

Surely we can handle it in the crypto API layer, just as we do GSO
in the network stack for drivers that can't handle TSO?

Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
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