Received: by 2002:a05:6a10:5bc5:0:0:0:0 with SMTP id os5csp1196189pxb; Tue, 19 Oct 2021 23:42:46 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzlM7gP966Ht6JRmxbvsRbBhJ1voOdAI+B3vXnymhvXkhkAMQUZQxIxyqSER6ZH7tMyKrOX X-Received: by 2002:a17:90a:4b8e:: with SMTP id i14mr5071877pjh.235.1634712165920; Tue, 19 Oct 2021 23:42:45 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1634712165; cv=none; d=google.com; s=arc-20160816; b=pgVDlVVq39gxMXRGZgScJMYlAENPwSFFA7IAQ6HeRIvWzwFE07p1d/p7oJTwVquglt dqY7SdU6qryvQdX00MlNiIEZ1K4AUfKkLO+YMtdoY+ikVJ6IOWlAIakfsLkfqOErIecz LutsWnChbcT4InYh9wjHCVfIWtw+E3LXT73n4+Kq2V5gTqAaLpQhzC0muOqpkMLdBd+C dtS0KifYWxjt4jxuXjIa7Z2lZJJXcDn41yqHGAQMYTNWA+zIaacg1LxfT/GV9uPxB1jW /UYaarU6mnIgJiMqjpc2ygvfe1Y70nE1hWJ2fAlEl4KzCU3fDyNKOEAmiJEsac4J5CBm S71A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=otIQhWkkiTUCK7A8zqj4dcMFSS7Btq7zBo70rVUTfH8=; b=xZn6PluWfFN/VL7gHI7VOm/hFHMLkNkudjqz5gD/jcnm+w3+A39BybQ84nBIiMlNyG pMoTLiUPfllTgnOx6Wbh93ywDZ4wnBgll3kJb7gQTUA+y0uds05elCrezO6BT+GPzkR2 RlWRo9HxJHMcgQhCX/hxUE/GRu350j9lOo3UFlW2/8F73rTLVfWv44oX0MXzuerCc0gB ge8rN+ilouCUqFZjQLgqsApfhtYVcTdYAd4//H0Vloh6mWwMxamYb+LFsaM126mKHuvU NAMIlXhifDZP8Jitg+avHfoW8twpuQqyXM4o9lBh2h2oaIywtuMeWEd7jrBarY2m3rhx /wnw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=pWiezsUC; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id pc8si2021348pjb.18.2021.10.19.23.42.33; Tue, 19 Oct 2021 23:42:45 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=pWiezsUC; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229809AbhJTGns (ORCPT + 99 others); Wed, 20 Oct 2021 02:43:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57018 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229741AbhJTGnp (ORCPT ); Wed, 20 Oct 2021 02:43:45 -0400 Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CD53AC061746 for ; Tue, 19 Oct 2021 23:41:31 -0700 (PDT) Received: by mail-pl1-x631.google.com with SMTP id f21so15436227plb.3 for ; Tue, 19 Oct 2021 23:41:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=otIQhWkkiTUCK7A8zqj4dcMFSS7Btq7zBo70rVUTfH8=; b=pWiezsUCqWZue+ySifqtIfn3GEltgU49NBeZJ+/Mv7Zujj8l7Hm2jNPzH1bwOCVyMz D3Jv+BmNDsABGLssv1QgrbFUey1rHeejyYKgEe3hSaQXr5VVyOmfRyleS8xqu+tsa6ri rSKJvS9KSGbUnl12IStEH9pKrF2nY4ABM+I7zdTF0lmYLCF897/7uTh1W9wnslSdAPY1 R1q37pYCFuF33Fig2IqlydmRz9Su1RpohkNZ1/bp8L0tuDdf61TjEIVJ8/epYfcYu7rN 5swcvM3pm3s1Ezx+L73ZOdOEm41/+lFGWGqcXeQAMSXOyzNNorHrOZWaruylo9qJ69AX i6AQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=otIQhWkkiTUCK7A8zqj4dcMFSS7Btq7zBo70rVUTfH8=; b=Da0IF2eLLERWT2rw1TGfkIEiIqtUm+mOqto/76Tiqb1vq0+A0AbVzg1FluKqj12kWg XA9NvUYlwsF4UHBJdCGS+HjVhn+fFvMuDmQUdQQIJvQ5A+ThKac32W1nj3FO168ZSKRb TJF5eocvrDJJ7JGNKp+OJ2rMpDutrvriqJ/zgcVA9l8I9/Hqccw70dkl1+7xbePTbDM9 8Xda3Foz11Kzs6mOUOJYMz2vxqrqhOOKcLFTbj7s3wjSsIF3OMbDkjs3JVEHGXOdy7n2 V6gHF35MkSAD9Jqh2KDI8CZjIqC6WD6VqKCMSlHs9DRedwV5tCaF03RmbaRzKJrGvsH/ 5Iqg== X-Gm-Message-State: AOAM5308n618uV6xnyNn86PKL02oT24HKnmIArok9ogjFySuSJdYcpBm nb9lg6mGqAm7sUtUa3XgmAzNXw== X-Received: by 2002:a17:90b:17c9:: with SMTP id me9mr5163946pjb.197.1634712091178; Tue, 19 Oct 2021 23:41:31 -0700 (PDT) Received: from localhost ([106.201.113.61]) by smtp.gmail.com with ESMTPSA id l6sm4665309pjy.23.2021.10.19.23.41.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Oct 2021 23:41:30 -0700 (PDT) Date: Wed, 20 Oct 2021 12:11:28 +0530 From: Viresh Kumar To: Jie Deng Cc: Greg KH , Wolfram Sang , Vincent Whitchurch , virtualization@lists.linux-foundation.org, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, kernel@axis.com Subject: Re: [PATCH 1/2] i2c: virtio: disable timeout handling Message-ID: <20211020064128.y2bjsbdmpojn7pjo@vireshk-i7> References: <20211019074647.19061-2-vincent.whitchurch@axis.com> <20211019080913.oajrvr2msz5enzvz@vireshk-i7> <20211019094203.3kjzch7ipbdv7peg@vireshk-i7> <20211019143748.wrpqopj2hmpvblh4@vireshk-i7> <94aa39ab-4ed6-daee-0402-f58bfed0cadd@intel.com> <8e182ea8-5016-fa78-3d77-eefba7d58612@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8e182ea8-5016-fa78-3d77-eefba7d58612@intel.com> User-Agent: NeoMutt/20180716-391-311a52 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 20-10-21, 14:35, Jie Deng wrote: > Yes, but we need to know what's the best value to be configured for a > specific "other side". > > I think the "other side" should be more aware of what value is reasonable to > be used. If we _really_ need that, then it would require an update to the specification first. I am not sure if the other side is the only party in play here. It depends on the entire setup and not just the hardware device. Specially with virtualisation things become really slow because of context switches, etc. It may be better for the guest userspace to decide on the value. Since this is specially for virtualisation, the kernel may set the value to few HZ by default, lets say 10 (Yeah its really high) :). -- viresh