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 25A95CA0EEB for ; Thu, 21 Aug 2025 03:44:35 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=0Jymx+EA6KESZceDiO0ZcOJChcO4ShLkCuHB0UCXkIw=; b=EIZjgCPXteHg3zzQZrvo4JrAaH iiXYa2KTxXStODMm7xULKq8g8rcAMKzhCCL3BEVS362z+fvEyDd/J7NkQLdxUsCZlHlJxzAEJlLSl H1Xofj7JubN9DQzPZ5dNAVE22nEfSB6GZBLY5MfVCOpzgmn3rL2HSG/wWWHnnhfwupX03N7whyc4H 4hGFPz08JXldiWHzuMls1khFch0iTw5vlRPzrWBDe0hO6KytiF7OmZInVAQvIbnUWTUxcKrERp1ir 5AakCNSz8Z4D+Euh+T/thvTegI1tLO5pNeZ1TbkITWK6VbBHFW/CCwC4IWtcr2DfJS1/0ntnpNLQx oum0JDPg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uowE5-0000000Fhb3-1eO7; Thu, 21 Aug 2025 03:44:33 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uoR0o-0000000BHnu-3fFu for linux-nvme@lists.infradead.org; Tue, 19 Aug 2025 18:24:48 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 340915C655A; Tue, 19 Aug 2025 18:24:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 53727C4CEF1; Tue, 19 Aug 2025 18:24:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1755627885; bh=SvC+jn4R/dc0Ind2g0hlwOADBQmeZeKp/GI1XBT+Aws=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=EwzZComdy/Uu53OXhh/BwwXin3VgP9XbYbPukl1+6UUrrmT0/QUgfHPWbl0yeg2IQ anqpbJ7fssVt9ylAxZXZBFI6XmgBFt76Sf9R+5d1q0uCECHn7z6AVgdwiNFmtPzUpZ oIJpPvDGleeIPwFshu0MK91r/Q4vlnE3hv5K/BQn4hYDk2V66e58pXhNfNYLb9ftUC FsprkYGd3dpPDZ4hTpasdYuKUOBt3HQa7ezc4te6CtdhPT3gjHwY76TvaUfRVubpfk /uH6qQQOd5J1UhIfM2bjnt3K6ADP7bZZTesuRvLRHriJ0TMIrB1SG3izjobM9UNSdA OKRS+aPZzKk+g== Date: Tue, 19 Aug 2025 12:24:42 -0600 From: Keith Busch To: Leon Romanovsky Cc: Marek Szyprowski , Leon Romanovsky , Jason Gunthorpe , Abdiel Janulgue , Alexander Potapenko , Alex Gaynor , Andrew Morton , Christoph Hellwig , Danilo Krummrich , iommu@lists.linux.dev, Jason Wang , Jens Axboe , Joerg Roedel , Jonathan Corbet , Juergen Gross , kasan-dev@googlegroups.com, linux-block@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-nvme@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-trace-kernel@vger.kernel.org, Madhavan Srinivasan , Masami Hiramatsu , Michael Ellerman , "Michael S. Tsirkin" , Miguel Ojeda , Robin Murphy , rust-for-linux@vger.kernel.org, Sagi Grimberg , Stefano Stabellini , Steven Rostedt , virtualization@lists.linux.dev, Will Deacon , xen-devel@lists.xenproject.org Subject: Re: [PATCH v4 15/16] block-dma: properly take MMIO path Message-ID: References: <642dbeb7aa94257eaea71ec63c06e3f939270023.1755624249.git.leon@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <642dbeb7aa94257eaea71ec63c06e3f939270023.1755624249.git.leon@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250819_112446_952458_F0E21775 X-CRM114-Status: UNSURE ( 9.89 ) X-CRM114-Notice: Please train this message. X-Mailman-Approved-At: Wed, 20 Aug 2025 20:44:16 -0700 X-BeenThere: linux-nvme@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-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Tue, Aug 19, 2025 at 08:36:59PM +0300, Leon Romanovsky wrote: > From: Leon Romanovsky > > Make sure that CPU is not synced and IOMMU is configured to take > MMIO path by providing newly introduced DMA_ATTR_MMIO attribute. We may have a minor patch conflict here with my unmerged dma metadata series, but not a big deal. Looks good. Reviewed-by: Keith Busch