From: Huang Ying Subject: Re: [RFC PATCH crypto 4/4] AES-NI: Add support to Intel AES-NI instructions for x86_64 platform Date: Mon, 12 Jan 2009 14:55:10 +0800 Message-ID: <1231743310.5937.107.camel@yhuang-dev.sh.intel.com> References: <1231120947.5937.31.camel@yhuang-dev.sh.intel.com> <20090109070144.GA7358@gondor.apana.org.au> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-pgGYok33G0B8RvoQt4kN" Cc: Sebastian Siewior , "linux-kernel@vger.kernel.org" , "linux-crypto@vger.kernel.org" To: Herbert Xu Return-path: Received: from mga14.intel.com ([143.182.124.37]:43530 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750977AbZALGzN (ORCPT ); Mon, 12 Jan 2009 01:55:13 -0500 In-Reply-To: <20090109070144.GA7358@gondor.apana.org.au> Sender: linux-crypto-owner@vger.kernel.org List-ID: --=-pgGYok33G0B8RvoQt4kN Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Fri, 2009-01-09 at 15:01 +0800, Herbert Xu wrote: > Actually I was thinking of something as simple as just using > cryptd as is. That is, register a blkcipher algorithm for your > version of cbc-aes, but don't register under the name cbc(aes), > e.g., register it under the name of __cbc-aes-aesni for both alg > name and driver name. You can register it under cbc(aes) too > if you add the fallback in there. >=20 > Then for the real thing, just allocate the blkcipher __cbc_*, > plus the ablkcipher cryptd(__cbc_*), and invoke the right one > depending on caller context. One more question: I use a "shell" cbc(aes) algorithm which chooses between cryptd(__cbc-aes-aesni) and __cbc-aes-aesni according to context. But the struct ablkcipher_request passed in can not be used for cryptd(*). This can be resolved by allocating another struct ablkcipher_request for cryptd(*) for each incoming struct ablkcipher_request. But is there any better solution? Best Regards, Huang Ying --=-pgGYok33G0B8RvoQt4kN Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEABECAAYFAklq6UsACgkQKhFGF+eHlph79gCfaq/sf1JlBB8zTb2HLVGTiqmU JHoAmgNCiJdMqjwZCoOBKmWyM4GvqLjI =EgKi -----END PGP SIGNATURE----- --=-pgGYok33G0B8RvoQt4kN--