From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 54541279DBA; Tue, 19 Aug 2025 18:24:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755627886; cv=none; b=IjvNP353tplCAuYh0OB9YjmUaeDv5vgwVEvVkUXxUTgQV1RTa1rJcT0s7kW/XIbkvgYoJoaeVKr7ZgmLDhXpnQAuxdxkbva2u5PEnaO9SaXCsx8vAFdl4r2C1yXecKCiR333XjW/2qAY/oYnjnwgWLLwG3sJkGDkbgkLWc6OoY4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755627886; c=relaxed/simple; bh=SvC+jn4R/dc0Ind2g0hlwOADBQmeZeKp/GI1XBT+Aws=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=j4f/veaFQdw1h1kuVbbLrVacBL7ipqA0kmOcpuNVJ13WtW0AgC9U0Z87K0GDttnxfLHVlyUATaEgWX08FqJhhMECD6r57UZuWfRC/ketnexwgKRVyd+JIO29ijBlq8/8nERpft3THera+FKDBRoiCo3ErNptl/bSV6HvLYLgw0U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EwzZComd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="EwzZComd" 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> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <642dbeb7aa94257eaea71ec63c06e3f939270023.1755624249.git.leon@kernel.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