From: Herbert Xu Subject: Re: [RFC] [PATCH v2 0/4] Parallel IPsec Date: Sat, 25 Apr 2009 17:21:42 +0800 Message-ID: <20090425092142.GA5830@gondor.apana.org.au> References: <20090424102451.GB12680@secunet.com> <20090425083849.GD26070@ioremap.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Steffen Klassert , David Miller , linux-crypto@vger.kernel.org To: Evgeniy Polyakov Return-path: Received: from rhun.apana.org.au ([64.62.148.172]:58301 "EHLO arnor.apana.org.au" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753130AbZDYJWA (ORCPT ); Sat, 25 Apr 2009 05:22:00 -0400 Content-Disposition: inline In-Reply-To: <20090425083849.GD26070@ioremap.net> Sender: linux-crypto-owner@vger.kernel.org List-ID: On Sat, Apr 25, 2009 at 12:38:49PM +0400, Evgeniy Polyakov wrote: > Hi. > > On Fri, Apr 24, 2009 at 12:24:51PM +0200, Steffen Klassert (steffen.klassert@secunet.com) wrote: > > This patchset adds the 'pcrypt' parallel crypto template. With this template it > > is possible to process the crypto requests of a transform in parallel without > > getting request reorder. This is in particular interesting for IPsec. > > Why can't it be used by default for all crypto operations instead of > synchronous one? PCI-based drivers will not benefit from spreading the requests across CPUs. If anything they will suffer from the synchronisation. Cheers, -- Visit Openswan at http://www.openswan.org/ Email: Herbert Xu ~{PmV>HI~} Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt