Messages in this thread | | | Date | Sun, 17 May 2015 12:48:11 +0200 | From | Boris Brezillon <> | Subject | 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@gondor.apana.org.au> 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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