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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 17756C021A9 for ; Mon, 17 Feb 2025 18:22:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=HorOPc/fpEMmI9E23OZib09LoAgUtm+JUQ6IrODWtrs=; b=GPmwNRJZ64WWi5egYvIBQBCfKi MqaMaXGprQ3HA98+V17Fyl+O1M1Sy5Gk7HkSaW5XyuC9M73YHBOm+yXbIoprPr41SplFRN4579Clb vWwXwuuwfludc9KhXh6yuhG6vYjOdeVqYa7xhunkfr8Z0ugy8E4iMSP5B0U/1jKS9R3fScL2MkKwZ /+PLVaP4yugj/nhY6BI51NqOzhZOrWE67CvRoFQMTtB0ps7MP7ZtMLqje+m8MctEAQB5UtjmrOPoR p39/HZn0LjkxFELar9WxckRj4gW+UYbN2q/Nk2fSawaaA3N5nA+A+xrOyxf2cJdpfEmPdUUqQyYil QTiHCwxA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tk5lG-00000005aYC-0r2M; Mon, 17 Feb 2025 18:22:30 +0000 Received: from nyc.source.kernel.org ([147.75.193.91]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tk56g-00000005ULi-41e9 for linux-arm-kernel@lists.infradead.org; Mon, 17 Feb 2025 17:40:36 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 4F943A41A40; Mon, 17 Feb 2025 17:38:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 31ECAC4CED1; Mon, 17 Feb 2025 17:40:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1739814033; bh=Dy/0GI1ft/U44yuy4Q2Na9V/ddLvYKKyiIq0KGW5S+c=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=WNhfr3gvbgG7kEediEzqfjJ61dCny56DanKCmNYmeojo/ibXqv4tJuMGMZ+0jGf0J wIhL0GJ+DU21zwz6EzFpJmP9FuZosVt4FztCzQ4rdkupYgOuCc6rXFrIcxyn6RYf49 i+kWLBaZYC2gEc5toYkq/WxuDabqk2BGBotwlrn7MTMX3JwV3pSoYhPF0xDuNQR9jy 0S1NHGCu3f6hB2wm9kg7OQZ7Wm68Ix6eQ97fFfwtB4O/zCqcmAKWHLo5iZ2NNDQagc 55814Y2qdrlL0XnmVoIWz0+cdSuQXmAznp1zvJAolcTdxfUYCatEYdwBBPcmn+jh4q P75nMbAfJef3w== Date: Mon, 17 Feb 2025 09:40:32 -0800 From: Jakub Kicinski To: Herbert Xu Cc: Eric Biggers , fsverity@lists.linux.dev, linux-crypto@vger.kernel.org, dm-devel@lists.linux.dev, x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Ard Biesheuvel , Sami Tolvanen , Alasdair Kergon , Mike Snitzer , Linus Torvalds , Mikulas Patocka , David Howells , netdev@vger.kernel.org Subject: Re: [PATCH v8 0/7] Optimize dm-verity and fsverity using multibuffer hashing Message-ID: <20250217094032.3cbe64c7@kernel.org> In-Reply-To: References: <20250212154718.44255-1-ebiggers@kernel.org> <20250213063304.GA11664@sol.localdomain> <20250215090412.46937c11@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250217_094035_056198_FFEFE255 X-CRM114-Status: GOOD ( 10.16 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sun, 16 Feb 2025 10:27:02 +0800 Herbert Xu wrote: > On Sat, Feb 15, 2025 at 09:04:12AM -0800, Jakub Kicinski wrote: > > Can confirm, FWIW. I don't know as much about IPsec, but for TLS > > lightweight SW-only crypto would be ideal. > > Please note that while CPU-only crypto is the best for networking, > it actually operates in asynchronous mode on x86. This is because > RX occurs in softirq context, which may not be able to use SIMD on > x86. Yes, that's true for tunnels and for IPsec. TLS does crypto in sendmsg/recvmsg, process context.