Received: by 2002:a05:6a10:9afc:0:0:0:0 with SMTP id t28csp1604934pxm; Thu, 3 Mar 2022 23:08:23 -0800 (PST) X-Google-Smtp-Source: ABdhPJzwTD/BGUQqdNzUpFZx5x+eaL7Zt+5P1wo43+YK2vh9EuFVupJbv8aVx1+OXpmazuu7YU7J X-Received: by 2002:a17:907:7f2a:b0:6d6:df12:7f57 with SMTP id qf42-20020a1709077f2a00b006d6df127f57mr14918171ejc.122.1646377702985; Thu, 03 Mar 2022 23:08:22 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1646377702; cv=none; d=google.com; s=arc-20160816; b=ObiXz0PgZl3BhgYeTEBNm/LaDIBIvj3RFKFEpXhoeZt4H7yjTgmjDjLKmudZdGW1mx YIxBsfu1Qfg/F2muxHGEIoo1hj1IOluIYUK2FeiDqUugMSE1qSfP1EeS/X+R6W2TIKwl lA3o+hXRgc76Vu53OL90Vio4Jlpy7fzrrqo3oD9sjyiXg9n+uWfilgSlSTRCXWqlP8FW PSg0piKJAVeRHMYgv8f8MdIH22ktnb0WxpOvRdZMyQIZ7nakX+ba8muf/vexiGw3r2Fy zARpWhc2YSsr633x+3GxOroVV8xcGrGjo3gPYZYtleuztNlhLbKy42BC7EcNifkHchDM VFyA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=YpzW7SSao3gk1SPgNKZp0ukGGjhRcvp9hd4bPA9WuPQ=; b=HkcFV0K1EYgfmu1N7wgAimhapSfYXuAkLA4VjTp+TYe0n2/gmGBfkqBGirQpy71P/E JqcFTcuTxwmGbKyR8ze7BmHIHu/pTAzWI5bFTVSBFCtLmZnq1lW2e08IhRRrV4mY1sLI 3GGNpdj2MuqaqYtCE8ZxD208QFbDTaXedPPFRBYesp5DL+jpMyx+xRUWMKccN1pI3cCo kWsd0KRCvLq5l5gqzLDkqNILlQBIm2AnPZxpK4Hu302d2YMl2LgLEK8IuroJrkrcXHPP Dsa9orCTHbLnL8TQOE4352MSJT39UBWGoAq4RVA+earRPKqc6PHFOpTPwqxIFiH06IpB hDiA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=Cr5ZaYYF; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id k1-20020a1709063fc100b006b27e2877fesi2527459ejj.885.2022.03.03.23.08.00; Thu, 03 Mar 2022 23:08:22 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=Cr5ZaYYF; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237774AbiCDC47 (ORCPT + 99 others); Thu, 3 Mar 2022 21:56:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231992AbiCDC46 (ORCPT ); Thu, 3 Mar 2022 21:56:58 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2B76FE43B; Thu, 3 Mar 2022 18:56:10 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 5A85AB8273F; Fri, 4 Mar 2022 02:56:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 559DEC004E1; Fri, 4 Mar 2022 02:56:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1646362568; bh=zIsF6583ND1nmCG72k5Y+Sn5CLZX1lUZlZX0tJyDatc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Cr5ZaYYFzKVvur8uNdE7MgBal6PbAnnUTyPlnpGIPRqzQxTrvzCP/zGtjQw87+IDf UE5A6OWqSsv//soVosJ0tZrr00ttX0sOuaM9awpPeKOuHpMcHDT26ISfsQFrqLbOCx /I7xLNmSpN5yFfYkgwiDTraf43xhwyH6BeKiZYavROadP89ffJtfMFJ+Qd6z9Lf4tM dbpLKf0IFb9eJb5VMRTIQul7xTIrY7xaE3dKT55sY0pc9BxU1FGySw96m1/58lIa9u kTcA8n6MpW6rZEId6D7dYAJF2sAghENNuH4k4IdOZi2xDdsDSNorGpqX7CW9NH4PSh lZf//Hsl/BxNw== Date: Thu, 3 Mar 2022 18:56:05 -0800 From: Keith Busch To: David Laight Cc: "linux-nvme@lists.infradead.org" , "linux-block@vger.kernel.org" , "linux-crypto@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "axboe@kernel.dk" , "hch@lst.de" , "martin.petersen@oracle.com" , Hannes Reinecke , Chaitanya Kulkarni , Arnd Bergmann Subject: Re: [PATCHv4 3/8] asm-generic: introduce be48 unaligned accessors Message-ID: <20220304025605.GB2824821@dhcp-10-100-145-180.wdc.com> References: <20220303201312.3255347-1-kbusch@kernel.org> <20220303201312.3255347-4-kbusch@kernel.org> <2d8895d24fff46738f98c2dae74fa440@AcuMS.aculab.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2d8895d24fff46738f98c2dae74fa440@AcuMS.aculab.com> X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 04, 2022 at 01:31:26AM +0000, David Laight wrote: > From: Keith Busch > > Sent: 03 March 2022 20:13 > > > > The NVMe protocol extended the data integrity fields with unaligned > > 48-bit reference tags. > > If they are reference tags, are they only interpreted by the > sending system? No, this field participates in end-to-end data protection formats, so is verified on both sides.