From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D9735C433E0 for ; Thu, 25 Jun 2020 12:45:40 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A5915206BE for ; Thu, 25 Jun 2020 12:45:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="19aEzWeg"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="uLKslSnG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A5915206BE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=tievNNbr6tWSpDZE862JtnuaKdHeqLSZ7q4nfdMXLwE=; b=19aEzWegDNQR8HB8hem/h22Hax 2ItxdpUXEh5PnLzjvgC7iiCI2f/mGmbEU4fBnKkN5EtzQEGdAt0vavyLdBMUGRS6lndif5l/UCfG2 TgJ6TQ1OSnUWh+hf6OsQJyzZDO5WuKvF13qN8O4DQ60DpKdlwsV7NXPt7JtLOg0QTTFoI+2KPWM/m UjhGdsBiVrrrrB6nyG9NINGxE+3b5A/TtXY8/prn//L4nhHV+yrdzfY57Wa1jXTKo4W+4JHV00Bpv VzJyBxs4IsNRVS1/3U3jsJhlUjxx4hb5d0Ov8Nah3oFIftS+YV/7NHOScEA0fJlGemv/dnTcrcHLP arsUaNdQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1joRDy-0005Kn-CP; Thu, 25 Jun 2020 12:43:26 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1joRDs-0005KA-IT; Thu, 25 Jun 2020 12:43:21 +0000 Received: from localhost.localdomain (lfbn-nic-1-188-42.w2-15.abo.wanadoo.fr [2.15.37.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8631F206BE; Thu, 25 Jun 2020 12:43:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1593088999; bh=L8fU5fAz7pCpg4HnWH2xhwqLiRr2Tw/EYLrtbhRzhMk=; h=From:To:Cc:Subject:Date:From; b=uLKslSnGx7g/s55qBe761CpJrI854/NuYwG6EgQgXUG+Nia3TSmvkIajhlbPwVPwh BDsI+JcTMOAdhdz7XuMWt2k9b9IKTRGM3fyMVcUKxd+ae7hr7JxbqM6DbbNQVMVdPc DqzzoonHEA1JiqOmJTfhABgOdbjp7Np/KAAZTk3M= From: Ard Biesheuvel To: linux-crypto@vger.kernel.org Subject: [PATCH 00/12] crypto: permit asynchronous skciphers as driver fallbacks Date: Thu, 25 Jun 2020 14:42:41 +0200 Message-Id: <20200625124253.1906557-1-ardb@kernel.org> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eric Biggers , Tom Lendacky , Jamie Iles , Herbert Xu , Rohit Maheshwari , Fabio Estevam , Sascha Hauer , Vinay Kumar Yadav , Maxime Ripard , "David S. Miller" , Chen-Yu Tsai , Corentin Labbe , NXP Linux Team , Pengutronix Kernel Team , Ayush Sawal , linux-amlogic@lists.infradead.org, linux-omap@vger.kernel.org, Shawn Guo , Ard Biesheuvel , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The drivers for crypto accelerators in drivers/crypto all implement skciphers of an asynchronous nature, given that they are backed by hardware DMA that completes asynchronously wrt the execution flow. However, in many cases, any fallbacks they allocate are limited to the synchronous variety, which rules out the use of SIMD implementations of AES in ECB, CBC and XTS modes, given that they are usually built on top of the asynchronous SIMD helper, which queues requests for asynchronous completion if they are issued from a context that does not permit the use of the SIMD register file. This may result in sub-optimal AES implementations to be selected as fallbacks, or even less secure ones if the only synchronous alternative is table based, and therefore not time invariant. So switch all these cases over to the asynchronous API, by moving the subrequest into the skcipher request context, and permitting it to complete asynchronously via the caller provided completion function. Patch #1 is not related, but touches the same driver as #2 so it is included anyway. Only OMAP was tested on actual hardware - the others are build tested only. Cc: Corentin Labbe Cc: Herbert Xu Cc: "David S. Miller" Cc: Maxime Ripard Cc: Chen-Yu Tsai Cc: Tom Lendacky Cc: Ayush Sawal Cc: Vinay Kumar Yadav Cc: Rohit Maheshwari Cc: Shawn Guo Cc: Sascha Hauer Cc: Pengutronix Kernel Team Cc: Fabio Estevam Cc: NXP Linux Team Cc: Jamie Iles Cc: Eric Biggers Ard Biesheuvel (12): crypto: amlogic-gxl - default to build as module crypto: amlogic-gxl - permit async skcipher as fallback crypto: omap-aes - permit asynchronous skcipher as fallback crypto: sun4i - permit asynchronous skcipher as fallback crypto: sun8i-ce - permit asynchronous skcipher as fallback crypto: sun8i-ss - permit asynchronous skcipher as fallback crypto: ccp - permit asynchronous skcipher as fallback crypto: chelsio - permit asynchronous skcipher as fallback crypto: mxs-dcp - permit asynchronous skcipher as fallback crypto: picoxcell - permit asynchronous skcipher as fallback crypto: qce - permit asynchronous skcipher as fallback crypto: sahara - permit asynchronous skcipher as fallback drivers/crypto/allwinner/sun4i-ss/sun4i-ss-cipher.c | 46 +++++----- drivers/crypto/allwinner/sun4i-ss/sun4i-ss.h | 3 +- drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c | 41 ++++----- drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h | 3 +- drivers/crypto/allwinner/sun8i-ss/sun8i-ss-cipher.c | 39 ++++---- drivers/crypto/allwinner/sun8i-ss/sun8i-ss.h | 3 +- drivers/crypto/amlogic/Kconfig | 2 +- drivers/crypto/amlogic/amlogic-gxl-cipher.c | 27 +++--- drivers/crypto/amlogic/amlogic-gxl.h | 3 +- drivers/crypto/ccp/ccp-crypto-aes-xts.c | 31 +++---- drivers/crypto/ccp/ccp-crypto.h | 4 +- drivers/crypto/chelsio/chcr_algo.c | 57 +++++------- drivers/crypto/chelsio/chcr_crypto.h | 3 +- drivers/crypto/mxs-dcp.c | 33 +++---- drivers/crypto/omap-aes.c | 35 ++++--- drivers/crypto/omap-aes.h | 3 +- drivers/crypto/picoxcell_crypto.c | 34 ++++--- drivers/crypto/qce/cipher.h | 3 +- drivers/crypto/qce/skcipher.c | 27 +++--- drivers/crypto/sahara.c | 96 +++++++++----------- 20 files changed, 244 insertions(+), 249 deletions(-) -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel