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 X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 94ACDC2BA1A for ; Sat, 25 Apr 2020 02:42:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 383192076C for ; Sat, 25 Apr 2020 02:42:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="eio4xTTd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726116AbgDYCmX (ORCPT ); Fri, 24 Apr 2020 22:42:23 -0400 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:10639 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726032AbgDYCmW (ORCPT ); Fri, 24 Apr 2020 22:42:22 -0400 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Fri, 24 Apr 2020 19:42:09 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Fri, 24 Apr 2020 19:42:22 -0700 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Fri, 24 Apr 2020 19:42:22 -0700 Received: from DRHQMAIL107.nvidia.com (10.27.9.16) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Sat, 25 Apr 2020 02:42:22 +0000 Received: from [10.2.165.152] (10.124.1.5) by DRHQMAIL107.nvidia.com (10.27.9.16) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Sat, 25 Apr 2020 02:42:20 +0000 Subject: Re: [PATCH 5.4.33 0/2] Fix for long operation cmds busy detection To: Sasha Levin CC: , , , , , , , , , , , , , References: <1587758766-3274-1-git-send-email-skomatineni@nvidia.com> <20200425014556.GD13035@sasha-vm> From: Sowjanya Komatineni Message-ID: <81be9ca0-5c61-6e94-8398-85354764b429@nvidia.com> Date: Fri, 24 Apr 2020 19:42:16 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200425014556.GD13035@sasha-vm> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL111.nvidia.com (172.20.187.18) To DRHQMAIL107.nvidia.com (10.27.9.16) Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: quoted-printable Content-Language: en-US DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1587782529; bh=Opl4dqdYSL+nC/1o3/UXZdoUz0oDiE3KFJp+3CLVHVo=; h=X-PGP-Universal:Subject:To:CC:References:From:Message-ID:Date: User-Agent:MIME-Version:In-Reply-To:X-Originating-IP: X-ClientProxiedBy:Content-Type:Content-Transfer-Encoding: Content-Language; b=eio4xTTdtgvh4OyHcpWOEFAz8JC/oYWo+aAExgoDDogW+pCq4ssPZcSsZXnyz2rGK mFq+nK7TLP5AIxUT8uRm2WjOBgkit/l24T67L2U663Wfu4p4Wve5C+kRamIBuQ1RbO wGqxaYOdILSF+74vV24K5Y6SJ0YlhXib+kBBrVtor9CxLE+DmHT82buAwtjagDR/IK af6OQX2vjON94w1/bgmpoBWgBXWqfR61brQuGkx/915O0rWfh8Y7l2ceIuoq0HbzVh yodwntEYw2TixWGpgsU7r+NdCZVFtUo5EtLwfK01A/IZa00BMglgJbxwbCayocG6ZY bt1MPBCxqPHxg== Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/24/20 6:45 PM, Sasha Levin wrote: > External email: Use caution opening links or attachments > > > On Fri, Apr 24, 2020 at 01:06:04PM -0700, Sowjanya Komatineni wrote: >> This series is to backport the upstream patches that fixes busy=20 >> detection >> for long operation mmc commands by implementing Tegra specific timeout >> callback to switch between finite and infinite HW busy detection wait >> modes. >> >> >> Sowjanya Komatineni (2): >> =C2=A0sdhci: tegra: Implement Tegra specific set_timeout callback >> =C2=A0sdhci: tegra: Enable MMC_CAP_WAIT_WHILE_BUSY host capability > > What regression do these patches fix? > This isn't a regression as we don't have any known failures as of today=20 with the specific mmc devices we are using on our platforms. But this patch fixes a long outstanding bug for sdhci-tegra to handle=20 long busy wait for mmc command operations that may take longer than host=20 max busy timeout. So, this is something that's missing from the=20 beginning and good to have. > --=20 > Thanks, > Sasha