From: Steffen Klassert Subject: Re: [PATCH] crypto: aesni-intel - avoid IPsec re-ordering Date: Thu, 20 Nov 2014 08:59:44 +0100 Message-ID: <20141120075943.GU6390@secunet.com> References: <1415771371-30774-1-git-send-email-ming.liu@windriver.com> <20141112084138.GL6390@secunet.com> <20141115031549.GA19208@gondor.apana.org.au> <20141120072650.GT6390@secunet.com> <20141120074342.GA29544@gondor.apana.org.au> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Cc: Ming Liu , , , , To: Herbert Xu Return-path: Content-Disposition: inline In-Reply-To: <20141120074342.GA29544@gondor.apana.org.au> Sender: netdev-owner@vger.kernel.org List-Id: linux-crypto.vger.kernel.org On Thu, Nov 20, 2014 at 03:43:42PM +0800, Herbert Xu wrote: > On Thu, Nov 20, 2014 at 08:26:51AM +0100, Steffen Klassert wrote: > > > > What about to use a fallback algorithm that does not need to touch > > FPU/SIMD in such cases? We would not need cryptd at all and it would > > keep the requests in the right order because we don't defer them. > > This would be bad for throughput since the fallback is many orders > of magnitude slower than aesni. Sure, but could be an option if this is really a rare case. Anyway, I don't mind too much about the solution as long as we get it to work :)