Re: [PATCH v9 4/4] crypto: Add Allwinner Security System crypto accelerator

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Hi Herbert,

On Sun, 17 May 2015 18:34:40 +0800
Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> wrote:

> On Sun, May 17, 2015 at 10:45:08AM +0200, Boris Brezillon wrote:
> >
> > From my POV this is not asynchronous at all (see my comments inline),
> > but maybe Herbert can confirm that.
> 
> Well we don't actually require drivers to be asynchronous.  It is
> obviously the preferred method but some hardware may not be capable
> of that.

Yep, but then they shouldn't be declared with CRYPTO_ALG_ASYNC and as an
ablkcipher algorithm (*Asynchronous* Block Cipher), right ?

Regarding the capabilities of this crypto engine, from what I've seen,
it is definitely capable of doing asynchronous requests ;-).

Best Regards,

Boris

-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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