lkml.org 
[lkml]   [2010]   [Jun]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [dm-devel] [PATCH] DM-CRYPT: Scale to multiple CPUs
On Wed, Jun 02, 2010 at 01:25:11AM -0400, Mikulas Patocka wrote:
>
> Are you sure that you know what you're talking about? pcrypt_alloc
> contains this:
> switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) {
> case CRYPTO_ALG_TYPE_AEAD:
> return pcrypt_alloc_aead(tb);
> }
>
> return ERR_PTR(-EINVAL);
> --- so for anything other byt AEAD it returns -EINVAL.

So someone needs to write the ablkcipher plugins for pcrypt.

This is the whole point of pcrypt, to implement parallelisation
exactly once, in the crypto layer.

> For what? For avoiding cache bounces? But the encrypting is
> order-of-magnitude slower than memory speed.

Have you benchmarked the Nehalem AES performance lately?

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


\
 
 \ /
  Last update: 2010-06-02 08:09    [W:0.069 / U:0.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site