From: Herbert Xu <herbert@gondor.apana.org.au>
To: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Cc: Uri Simchoni <uri@jdland.co.il>,
"linux-crypto@vger.kernel.org" <linux-crypto@vger.kernel.org>
Subject: Re: [PATCH 0/2] crypto: omap-sha1-md5: OMAP3 SHA1 & MD5 driver
Date: Tue, 13 Apr 2010 22:48:43 +0800 [thread overview]
Message-ID: <20100413144843.GD12695@gondor.apana.org.au> (raw)
In-Reply-To: <4BC47543.1020508@nokia.com>
On Tue, Apr 13, 2010 at 04:44:35PM +0300, Dmitry Kasatkin wrote:
>
> Well it can... if reqa occupied hw all other requests will fallback to
> sw sha1.
That is unacceptable. If we had a user-space API that would
mean a single request can tie up the hardware indefinitely.
If your hardware is not able to produce a non-finalised hash,
then you should only do finup/final in hardware, and use a software
fallback to implement the rest.
If your hardware is also not able to accept an initial state,
then the only thing you can implement is digest. The rest would
have to fall back to software.
Cheers,
--
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2010-04-13 14:48 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-08 16:35 [PATCH 0/2] crypto: omap-sha1-md5: OMAP3 SHA1 & MD5 driver Dmitry.Kasatkin
2010-04-13 8:59 ` Herbert Xu
2010-04-13 9:39 ` Dmitry Kasatkin
2010-04-13 10:03 ` Herbert Xu
2010-04-13 10:13 ` Dmitry Kasatkin
2010-04-13 12:02 ` Herbert Xu
2010-04-13 13:00 ` Dmitry Kasatkin
2010-04-13 14:45 ` Herbert Xu
2010-04-13 15:16 ` Uri Simchoni
2010-04-13 15:21 ` Dmitry Kasatkin
2010-04-14 0:44 ` Herbert Xu
2010-04-14 6:37 ` Dmitry Kasatkin
2010-04-14 6:44 ` Herbert Xu
2010-04-14 6:51 ` Dmitry Kasatkin
2010-04-14 6:55 ` Herbert Xu
2010-04-16 7:44 ` Dmitry Kasatkin
2010-04-19 13:27 ` Herbert Xu
2010-04-13 10:15 ` Dmitry Kasatkin
2010-04-13 12:00 ` Uri Simchoni
2010-04-13 12:10 ` Herbert Xu
2010-04-13 13:44 ` Dmitry Kasatkin
2010-04-13 14:36 ` Dmitry Kasatkin
2010-04-13 14:42 ` Herbert Xu
2010-04-13 15:33 ` Dmitry Kasatkin
2010-04-14 0:47 ` Herbert Xu
2010-04-13 14:48 ` Herbert Xu [this message]
2010-04-13 15:48 ` Dmitry Kasatkin
2010-04-14 0:50 ` Herbert Xu
-- strict thread matches above, loose matches on Subject: below --
2010-03-17 13:12 Dmitry Kasatkin
2010-03-23 11:32 ` Herbert Xu
2010-03-24 7:31 ` Dmitry Kasatkin
2010-03-24 14:51 ` Dmitry Kasatkin
2010-04-08 14:07 ` Herbert Xu
2010-04-08 14:04 ` Herbert Xu
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