Received: by 2002:a05:6a10:a0d1:0:0:0:0 with SMTP id j17csp4472362pxa; Mon, 10 Aug 2020 09:50:29 -0700 (PDT) X-Google-Smtp-Source: ABdhPJztu30GW+epKKleKLTHnjxOUm4iqGkXraKiH9ZCHw4ASgzhXt1UnTRRYtAS0OEjddQpCa+f X-Received: by 2002:a05:6402:31a3:: with SMTP id dj3mr22246448edb.73.1597078229531; Mon, 10 Aug 2020 09:50:29 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1597078229; cv=pass; d=google.com; s=arc-20160816; b=PXX8Fr1mea/OylEN8jBcLRE+G2fTUrQ4uHv9PmQefVjG+waI3k4EN9zoQWyIV0Vak4 8hqnnxn0T/olY1Re412qiWv/1xhhxGrUZyYw3WtWllRkTsfVbWuXaDQYC78jkwdh8aL/ MT3oC6be2wMAI9c3u5mtRJl535J2uzHHkXFMnG9Vxi5xZ19mGl6B3IfJfjCIieRHTO/m DHvh97DzLM324PtcYn+7w9LFnb75oiIK0LkqIer1exwgIBfFIOx7NrzyKzEGOlnm4Zr2 IsTfw9NLVMFK+vjraY0omYv9nsqohnRwSC3IE+o7Evxf0nvlSR+UOO+s/zCJpuu5acbo EAKQ== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-language:in-reply-to:user-agent:date:message-id:from :references:to:subject:dkim-signature; bh=i64OgJ2gqJIDru8809LusrGsxA2elDEdp3ms+lYxPdg=; b=qtkou0fTmgKE8zHdjUyq43XpaKn0Km8UKiyDwT+b/mEQDxGUIlxj/olx22P/GusEJG WEmG9YIJhgnKhnsNO6akXBcnArueGwpZYzUM02FmcLwzJRNJNNZJQyJS6tjJdMSKNLtk d7gAk6npQX5aZFBWnGAb1gBB1dgo4yqR7n2tG4Ukn0XWWjVHhf6MMU2Xkq8gq5gJiYwN EWpfxM+MhoSCv7pZQA8fGfY4W+VMA0UBNTazxEN9EkqLl8FJL383CNBz5XUiu+7bH9e/ CMJ4DzctORTIaMMPIjG5NK7GJusfgDZVAFiOe1vod+d1qClRB4n1z0k+T6Diod4j10lu VCaA== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@nxp.com header.s=selector2 header.b=RLrZlIFG; arc=pass (i=1 spf=pass spfdomain=nxp.com dkim=pass dkdomain=nxp.com dmarc=pass fromdomain=nxp.com); spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nxp.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id h24si10753613ejq.296.2020.08.10.09.49.57; Mon, 10 Aug 2020 09:50:29 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@nxp.com header.s=selector2 header.b=RLrZlIFG; arc=pass (i=1 spf=pass spfdomain=nxp.com dkim=pass dkdomain=nxp.com dmarc=pass fromdomain=nxp.com); spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=nxp.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726115AbgHJQrv (ORCPT + 99 others); Mon, 10 Aug 2020 12:47:51 -0400 Received: from mail-eopbgr00042.outbound.protection.outlook.com ([40.107.0.42]:7236 "EHLO EUR02-AM5-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727867AbgHJQrr (ORCPT ); Mon, 10 Aug 2020 12:47:47 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=PfFlZjuuu2601DR25uNJmgUjVcVm+TuKmngl8z4y1I1x6rN3zomUhn5uzRXWlL8KRrNbsgC9pUfjPMZ2ZdJ2LnGIK7VE7X86idPXsflkL+puD/jnidoDLzFHHdziY4BJygt341pHST+WvZHhgZkzQvYXwsXICalrETmT9dN6tU7mvBSWcGih1MuuEVgIohD+m20prwJhFy0yHkSS3uTW5MC1/UbH09KUcZP7WNFCv4HLBrKQhbwZcauvnUxYC+R8RDMIyg8SXimGdYETWvzV5+8D6ZEbMIG1nqeH4cvuCBL1PKpZ+hsWg71PhAZEqLMc7/2pfGV06uQxVNmixGsecA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=i64OgJ2gqJIDru8809LusrGsxA2elDEdp3ms+lYxPdg=; b=GWx+mh13j7q48hRC5alSeEJVh6E9WbHWNUBFoCSVDbZ6GGJfbkCJ5KHsiliERZVDmvFO2hfkFInsMW6xVEAISMWzo4+rVpVdYOvS0GX78V/D1mzrgJ5EZ24b3w32ZsFaMHoL5o6IUYSNwpp5qK82xUCNprqICcjPJyh+02HrBX4UN6Abu95WVip4bT+iOyilJqN+ssmW1bFhyQQmqcV280iJ8UTl6OWrGwP3nEsT1fXU/iUDg/ZrTI7QKOfV70AyXeR3afU3gUWTHFtgOIzOfFI+eai3pQCk95V9jqhlXRZ9oenKh0qkTJcrtqbRWAwjjF0ZfIDC6jLZJyiGHO2j0g== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=i64OgJ2gqJIDru8809LusrGsxA2elDEdp3ms+lYxPdg=; b=RLrZlIFGRsuwqylyGY+gHSof568fQbWZJd8ZcidtF4uZfJw7UP9cTKLkziB2GgwG7uEDaA6gpiIEtRNFOltNXduWUlREbo46KurqjXluFp+csvB4bftc7tQeIK9aOvo1lblVvb2PQ80vqY0OrHK9faPWx8EMevTQCRp8OTWI0O8= Authentication-Results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; dmarc=none action=none header.from=nxp.com; Received: from VI1PR04MB4046.eurprd04.prod.outlook.com (2603:10a6:803:4d::29) by VE1PR04MB6560.eurprd04.prod.outlook.com (2603:10a6:803:122::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3261.20; Mon, 10 Aug 2020 16:47:43 +0000 Received: from VI1PR04MB4046.eurprd04.prod.outlook.com ([fe80::8459:4be8:7034:7a81]) by VI1PR04MB4046.eurprd04.prod.outlook.com ([fe80::8459:4be8:7034:7a81%6]) with mapi id 15.20.3261.024; Mon, 10 Aug 2020 16:47:43 +0000 Subject: Re: [v3 PATCH 19/31] crypto: caam - Remove rfc3686 implementations To: Herbert Xu , Ard Biesheuvel , Stephan Mueller , Linux Crypto Mailing List , Eric Biggers References: <20200728071746.GA22352@gondor.apana.org.au> From: =?UTF-8?Q?Horia_Geant=c4=83?= Message-ID: <92042403-0379-55ab-ccbc-4610555f0a93@nxp.com> Date: Mon, 10 Aug 2020 19:47:40 +0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-ClientProxiedBy: AM4PR0202CA0015.eurprd02.prod.outlook.com (2603:10a6:200:89::25) To VI1PR04MB4046.eurprd04.prod.outlook.com (2603:10a6:803:4d::29) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [192.168.0.129] (84.117.251.185) by AM4PR0202CA0015.eurprd02.prod.outlook.com (2603:10a6:200:89::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3261.19 via Frontend Transport; Mon, 10 Aug 2020 16:47:42 +0000 X-Originating-IP: [84.117.251.185] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 6aeba02c-a58f-4de9-e700-08d83d4d19eb X-MS-TrafficTypeDiagnostic: VE1PR04MB6560: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7219; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: FxXkVygJO5DyfI41vaqGDJbTLuxrThVAHR6t13EW3babT+TiGQWtuFwG5WJIX2dvlgAuN14aKXbbd4ZZEa3efwGIiGyCOQZ/SL3meyGj/KA5uMLMYj7D1AseD78xQiQmAjm0LEGBgFFKJOVtH0asIWJy0D6MYBMWWNyqFzCL2Ha4dTtpAYEyBN8aa2j0Sf/7pC3zkeFKylUCygp6b0mYjkmNMabbNymY94t4Wtyti8bfdvXb1pfOyNiBwhehN/E46l/YybM6rQSUECbTU1YU3HmmxwzBte0pl2f6FSSGAoahY+Th6VIjbP6AGdLHl4a3FaFJr0AE0MOI9RhfCB8zH8xkCxQpJPb6BFCJo9rFQx3WiduKCUiItZ3wgx1F3IOg X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VI1PR04MB4046.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(4636009)(136003)(376002)(346002)(396003)(39860400002)(366004)(86362001)(66556008)(66946007)(66476007)(2906002)(5660300002)(4744005)(8936002)(31696002)(31686004)(36756003)(478600001)(6486002)(110136005)(16526019)(2616005)(186003)(956004)(16576012)(26005)(52116002)(316002)(53546011)(8676002)(43740500002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6aeba02c-a58f-4de9-e700-08d83d4d19eb X-MS-Exchange-CrossTenant-AuthSource: VI1PR04MB4046.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Aug 2020 16:47:43.2899 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: oJIATgt0lvFStEuUBZGVWFTSISVQH8Bhc4bK/V+bd1+6z6lI1wCJeAFjenFcqRMwEh1Hq3ecAEd3Sr/b0LwMxw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB6560 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org On 7/28/2020 10:19 AM, Herbert Xu wrote: > The rfc3686 implementations in caam are pretty much the same > as the generic rfc3686 wrapper. So they can simply be removed > to reduce complexity. > I would prefer keeping the caam rfc3686(ctr(aes)) implementation. It's almost cost-free when compared to ctr(aes), since: -there are no (accelerator-)external DMAs generated -shared descriptors are constructed at .setkey time -code complexity is manageable Thanks, Horia