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=-7.1 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,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 5DA35C43463 for ; Fri, 18 Sep 2020 19:52:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2614D21D42 for ; Fri, 18 Sep 2020 19:52:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726252AbgIRTv6 (ORCPT ); Fri, 18 Sep 2020 15:51:58 -0400 Received: from mail-pf1-f194.google.com ([209.85.210.194]:45268 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726154AbgIRTv6 (ORCPT ); Fri, 18 Sep 2020 15:51:58 -0400 Received: by mail-pf1-f194.google.com with SMTP id k15so4090756pfc.12; Fri, 18 Sep 2020 12:51:57 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=jwJFqifRVAKIV7cNFiI3hJtWYZIgH2Laudl3kyC7pSQ=; b=Y79Ylw6oXwBBMLQ86h1WCITPSyTZJ3RXHZPjTOpk4VMfVHFWXc8c51OwkqM1YuHqED fWFNXfAOHWgFhjxvei6XKX7mXLmXOg814XAg8/RLDMObZhKjSLWWXy9/c4+ogTYRbrBt plf3L4Fd7iOfLu2vmkdehHdnPNbNjuHRpfip5BkJUqSiAXfeDBezEJsIooDBaHctMvEs rCtybvsK1qRiQY7FtuvUH5LvUFCf0Yn6TSH3Rs5puTiygPJMsuwvgE8I+IYyXjhItzVU RIwgzjpHp6cExQxYAoacw0yIJah+wfV+uH7QdR8b8gU7PhswDknyb8JRQ8XT1PzBawEP 87nA== X-Gm-Message-State: AOAM530koaCMAOnM1nli5NJvKdWWQZOECbq3gU06IcG6ALFDDCYW+wuc p3yoZTDNIL0FDspIHQMtb7M= X-Google-Smtp-Source: ABdhPJzVciLn/oCo2sInI+EDeWE+Is9ojVhKgRldY01jQsB/CIJFydhY6sB7tPTYZUe7oqZr2zXqgA== X-Received: by 2002:a62:8607:0:b029:13c:1611:6593 with SMTP id x7-20020a6286070000b029013c16116593mr32701757pfd.16.1600458717129; Fri, 18 Sep 2020 12:51:57 -0700 (PDT) Received: from [192.168.50.110] (c-73-241-217-19.hsd1.ca.comcast.net. [73.241.217.19]) by smtp.gmail.com with ESMTPSA id k28sm4002499pfh.196.2020.09.18.12.51.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 18 Sep 2020 12:51:55 -0700 (PDT) Subject: Re: [PATCH v11 0/4] scsi: ufs: Add Host Performance Booster Support To: Christoph Hellwig , Daejun Park Cc: "avri.altman@wdc.com" , "jejb@linux.ibm.com" , "martin.petersen@oracle.com" , "asutoshd@codeaurora.org" , "beanhuo@micron.com" , "stanley.chu@mediatek.com" , "cang@codeaurora.org" , "tomas.winkler@intel.com" , ALIM AKHTAR , "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Sang-yoon Oh , Sung-Jun Park , yongmyung lee , Jinyoung CHOI , Adel Choi , BoRam Shin , SEUNGUK SHIN References: <231786897.01599016802080.JavaMail.epsvc@epcpadp1> <231786897.01600211401846.JavaMail.epsvc@epcpadp1> <20200916052208.GB12923@infradead.org> From: Bart Van Assche Message-ID: <2aecb02b-f845-b860-facd-e31bd964ac64@acm.org> Date: Fri, 18 Sep 2020 12:51:53 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20200916052208.GB12923@infradead.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/15/20 10:22 PM, Christoph Hellwig wrote: > On Wed, Sep 16, 2020 at 08:05:17AM +0900, Daejun Park wrote: >> Hi All, >> >> I want to know how to improve this patch. > > Drop it and fix the actual UFS feature to not be so horrible? A new UFS specification could be defined and could be implemented for future UFS devices. I think this patch series is intended to support the millions of UFS devices that are already in use, e.g. in Android smartphones. Thanks, Bart.