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=-5.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 54C3AC43463 for ; Mon, 21 Sep 2020 08:05:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E88ED20EDD for ; Mon, 21 Sep 2020 08:05:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="Qlmr38hT" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726475AbgIUIFG (ORCPT ); Mon, 21 Sep 2020 04:05:06 -0400 Received: from mailout4.samsung.com ([203.254.224.34]:11828 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726343AbgIUIFG (ORCPT ); Mon, 21 Sep 2020 04:05:06 -0400 Received: from epcas1p1.samsung.com (unknown [182.195.41.45]) by mailout4.samsung.com (KnoxPortal) with ESMTP id 20200921080503epoutp045b10eb3b80a50b1619aa8022622a1587~2vePclpBr0566805668epoutp041 for ; Mon, 21 Sep 2020 08:05:03 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout4.samsung.com 20200921080503epoutp045b10eb3b80a50b1619aa8022622a1587~2vePclpBr0566805668epoutp041 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1600675503; bh=jPMF6ttwhjh6Gz0Gb/xu2AZVqN/bOzkzOlaHhccbTdI=; h=Subject:Reply-To:From:To:CC:In-Reply-To:Date:References:From; b=Qlmr38hTllM1bsiMyG8uIlWCXyfOvq3YWIKCfLcSrE2JTF/IYMjiAaTa5u/f4dsz8 gGx6AbQuhzFfTd7fsvBDu+4uM7EbFGvpg9oJ97ZjrfOJg4/+SL98hH6qCe0ZTeTSCt DQBrBQXIaOyKXq7d7kZXVM+9BR5Cw1u1zNWBOyH4= Received: from epcpadp1 (unknown [182.195.40.11]) by epcas1p1.samsung.com (KnoxPortal) with ESMTP id 20200921080503epcas1p15266b69b4a59405cdcc7685635c6cc43~2veO9sQck2448624486epcas1p1p; Mon, 21 Sep 2020 08:05:03 +0000 (GMT) Mime-Version: 1.0 Subject: RE: [PATCH v11 0/4] scsi: ufs: Add Host Performance Booster Support Reply-To: daejun7.park@samsung.com Sender: Daejun Park From: Daejun Park To: Bart Van Assche , 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 X-Priority: 3 X-Content-Kind-Code: NORMAL In-Reply-To: <2aecb02b-f845-b860-facd-e31bd964ac64@acm.org> X-CPGS-Detection: blocking_info_exchange X-Drm-Type: N,general X-Msg-Generator: Mail X-Msg-Type: PERSONAL X-Reply-Demand: N Message-ID: <1087081975.11600675503396.JavaMail.epsvc@epcpadp1> Date: Mon, 21 Sep 2020 17:03:36 +0900 X-CMS-MailID: 20200921080336epcms2p109f08924c333c8d7d87ef6f3f64d9b18 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" X-Sendblock-Type: AUTO_CONFIDENTIAL X-CPGSPASS: Y X-CPGSPASS: Y X-Hop-Count: 3 X-CMS-RootMailID: 20200902031713epcms2p664cebf386ba19d3d05895fec89aaf4fe References: <2aecb02b-f845-b860-facd-e31bd964ac64@acm.org> <231786897.01599016802080.JavaMail.epsvc@epcpadp1> <231786897.01600211401846.JavaMail.epsvc@epcpadp1> <20200916052208.GB12923@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org >> 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. It is important point. I am not suggesting a strange feature, but want to make mainline the HPB feature that is already widely used in Android smartphones. Thanks, Daejun.