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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E85FCC4167B for ; Mon, 4 Dec 2023 13:38:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233683AbjLDNiN (ORCPT ); Mon, 4 Dec 2023 08:38:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44098 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233933AbjLDNiI (ORCPT ); Mon, 4 Dec 2023 08:38:08 -0500 Received: from mail-qk1-x732.google.com (mail-qk1-x732.google.com [IPv6:2607:f8b0:4864:20::732]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18704271C for ; Mon, 4 Dec 2023 05:27:35 -0800 (PST) Received: by mail-qk1-x732.google.com with SMTP id af79cd13be357-77efe9be09fso27508185a.3 for ; Mon, 04 Dec 2023 05:27:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; t=1701696454; x=1702301254; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=D9LwUnJIABIYXynmRpnw8pFA/pix8HVAwnnjKzJe6go=; b=IFfed4nRNRW34bnfJg0K5t+m7Qs/6Ibys9PBnRhbntxFz1p70fTUj9Sdz7E2p89/GH 5ZnUmfpVDqcjJc8TVh29Zo8hnUMidkibRGpcbqM05hHTYkFMXk8BNhvVG9LW4wTYz1rU FNcILSfSOzss+x55aKQykriC9tM3LEs37qV5Xom4E409/PyCK0mXt8ZltCslONcG9CXw hYRq7Qwb8mqslU1Ss9XDxU6PZESOmTAyH1LDpkqIaWrWDXxHQU3E92EJo3AIU2rQQsBP JmGmIQOWbVNmywxyHBZU1jo2mcMyLWkdhYvxRB5NMegtb1IpSaEZafkLIPy+vMFMqge0 QjEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701696454; x=1702301254; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=D9LwUnJIABIYXynmRpnw8pFA/pix8HVAwnnjKzJe6go=; b=q8Sahux2G7eCkk+ynI0NWDxVdSbn4Rq3yOkY6ac1E13FDH0/fO6HRCf6wwd/NfH0fL R+lJkj+F9ASL6NFRjMFJOVzBfrlQSeFXgaPF7J3KbkbL3IIyYHSsC//AmygHp85BRrUO a2lRCp2E0WKcwQjN8qULTH2xvqOHZD1ZARVMGitlGuQPHS7kH67ZkORwjcL0OmcVj4rk 9Oyd4NFDeKn0qafWpXwIH90WIyLC30qqbk9XS8Q2Ji18jKXxfx8bbchlHmFDxs0Ec2LE b/udEI5PnpiSrqjz2zNcuz/qy+o5Ibf8u6VWsvCQZTA6wZ47fdZXkw0Xo6iZTO87IofE 82Aw== X-Gm-Message-State: AOJu0Yx8okrJroJaEzRC5ixrI84eMcVjCZuJ9l1aSO8w+M5b1UPaNngx SwGMH+03gyE2EconjFPfErS0jSAfpC3qYA0ACMQ= X-Google-Smtp-Source: AGHT+IFwJd+mm5yr9E/Hib/UfERIuq8yXaFwHF06npvbzKqM7QtB126feDLE1ZVHpqSCvPB5b1ED4w== X-Received: by 2002:a05:620a:1913:b0:77e:fba3:a787 with SMTP id bj19-20020a05620a191300b0077efba3a787mr2055508qkb.101.1701696454008; Mon, 04 Dec 2023 05:27:34 -0800 (PST) Received: from ziepe.ca (hlfxns017vw-142-134-23-187.dhcp-dynamic.fibreop.ns.bellaliant.net. [142.134.23.187]) by smtp.gmail.com with ESMTPSA id l15-20020ae9f00f000000b0077da8c0936asm4239213qkg.107.2023.12.04.05.27.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 Dec 2023 05:27:33 -0800 (PST) Received: from jgg by wakko with local (Exim 4.95) (envelope-from ) id 1rA8yz-00AsTP-01; Mon, 04 Dec 2023 09:27:33 -0400 Date: Mon, 4 Dec 2023 09:27:32 -0400 From: Jason Gunthorpe To: Baolu Lu Cc: Joerg Roedel , Will Deacon , Robin Murphy , Kevin Tian , Jean-Philippe Brucker , Nicolin Chen , Yi Liu , Jacob Pan , Yan Zhao , iommu@lists.linux.dev, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v7 12/12] iommu: Improve iopf_queue_flush_dev() Message-ID: <20231204132732.GM1489931@ziepe.ca> References: <20231115030226.16700-1-baolu.lu@linux.intel.com> <20231115030226.16700-13-baolu.lu@linux.intel.com> <20231201203536.GG1489931@ziepe.ca> <93a57e63-352c-407c-ac3f-4b91c11d925d@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <93a57e63-352c-407c-ac3f-4b91c11d925d@linux.intel.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Dec 04, 2023 at 11:46:30AM +0800, Baolu Lu wrote: > On 12/2/23 4:35 AM, Jason Gunthorpe wrote: > I am wondering whether we can take patch 1/12 ~ 10/12 of this series as > a first step, a refactoring effort to support delivering iopf to > userspace? I will follow up with one or multiple series to add the > optimizations. I think that is reasonable, though I would change the earlier patch to use RCU to obtain the fault data. Jason