From owner-freebsd-hackers@FreeBSD.ORG Mon Jun 6 20:02:07 2011 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8ED6F106566C; Mon, 6 Jun 2011 20:02:07 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (mx0.zoral.com.ua [91.193.166.200]) by mx1.freebsd.org (Postfix) with ESMTP id E4B288FC0C; Mon, 6 Jun 2011 20:02:06 +0000 (UTC) Received: from deviant.kiev.zoral.com.ua (root@deviant.kiev.zoral.com.ua [10.1.1.148]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id p56K20Ck003027 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 6 Jun 2011 23:02:00 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.4/8.14.4) with ESMTP id p56K20bT079072; Mon, 6 Jun 2011 23:02:00 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.4/8.14.4/Submit) id p56K20EH079071; Mon, 6 Jun 2011 23:02:00 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Mon, 6 Jun 2011 23:02:00 +0300 From: Kostik Belousov To: Artem Belevich Message-ID: <20110606200200.GP48734@deviant.kiev.zoral.com.ua> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="5wAPvwbAcQJrmmvx" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-3.3 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00, DNS_FROM_OPENWHOIS autolearn=no version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: "Jack F. Vogel" , FreeBSD Hackers Subject: Re: FreeBSD I/OAT (QuickData now?) driver X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 06 Jun 2011 20:02:07 -0000 --5wAPvwbAcQJrmmvx Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jun 06, 2011 at 12:47:38PM -0700, Artem Belevich wrote: > Jack, >=20 > Quite a while back you've posted I/OAT driver. Unfortunately the link > you posted does not seem to have the drivers any more. Do you still > have them available somewhere? >=20 > Do you know if Intel has technical info on the DMA engine available? I > believe long time back when it was still I/OAT it was part of chipset > spec. Now X58 Express chipset datasheet refers to a broken link > http://www.intel.com/cs/network/connectivity/emea/eng/226276.htm Referencing DMA engine, do you mean Vanderpool ? It is http://download.intel.com/technology/computing/vptech/Intel(r)_VT_for= _Direct_IO.pdf According to Intel marketing-talk, I/OAT is a couple of things, including MSI-X, VT-d (i.e. IOMMU/Vanderpool), something called Intel(R) QuickData Technology (might be, you mean this one ?) and DCA. --5wAPvwbAcQJrmmvx Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEARECAAYFAk3tMjgACgkQC3+MBN1Mb4j0OgCeNG/X59UsJm+nIvESrqzWbtce 1R8AoPdGdXr7pGfVOnK2+mbPh22uPSjm =MPKs -----END PGP SIGNATURE----- --5wAPvwbAcQJrmmvx--