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[23.128.96.18]) by mx.google.com with ESMTP id w17si2908454edx.522.2020.07.16.01.15.01; Thu, 16 Jul 2020 01:15:24 -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=@gmail.com header.s=20161025 header.b="WVb0tt/E"; 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=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726837AbgGPIOw (ORCPT + 99 others); Thu, 16 Jul 2020 04:14:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725867AbgGPIOv (ORCPT ); Thu, 16 Jul 2020 04:14:51 -0400 Received: from mail-ed1-x542.google.com (mail-ed1-x542.google.com [IPv6:2a00:1450:4864:20::542]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 614B5C061755; Thu, 16 Jul 2020 01:14:51 -0700 (PDT) Received: by mail-ed1-x542.google.com with SMTP id dm19so4074192edb.13; Thu, 16 Jul 2020 01:14:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:subject:from:to:cc:date:in-reply-to:references :mime-version:content-transfer-encoding; bh=URRzOHpgQhWz8k04t/0LNtBaTy9pE9Bui1vrbzjXhfI=; b=WVb0tt/EfTDdAo45KwKGv38Dfqf342lj+5fwHbe13QL/aVMx/pb3b9BnsLBHhc0Zhk AjqG99PTVwKhCujQ2CSYgS709Pn7LoSNLuS9hSW+M+t8ZoPhKpsFqhUer9e9+Jqd7I/H GCUnZYnRDbLGOy7EqCI7p7Hin/1z8e3HS0HQIZvkiSlwu1h3ENirbu6bmDqaXFBMnR7K bmbNJFN0ZSh5aKeCNt59mGANr6lJWqKp2OuD5fGqaAbUnceWNjm0KnZOVvfgb8tf+WiV sT12rEWdQizRb2zmEjOrCEyGTlw1uw5dGEC55g2kxs8fB3o4JDqbCVtfa6InSmAxVdqL r9Ig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:mime-version:content-transfer-encoding; bh=URRzOHpgQhWz8k04t/0LNtBaTy9pE9Bui1vrbzjXhfI=; b=A4otV2+2HXfU4W3z7Yjy5X0zpzUNLj6OR9JrAdLsASctZstmd69B/eEcMfuIjI2vgH QuezpX29pSAZeXJip3TVXjl0uX3iG0Ek/1ZO9HTishVc/+t08H5wb14LxWZAUxkJ4Lef yHxEs4uug1y7Pi1A9QEzN94y75LfCwtKZu/T9f6KWf/E0dDuOHJuJBTJAIYHA8k2XQ7M E/RFVQPLiqUHwX1hjsYnrC7gdCK0G+S5m350GXemO/QIPP0hP3nOmCN4ZDcUNy5cBVz2 jwB25vrQNDjNUGxKlAXrisTO0MAXBhDNljiTTzgWBLpDV+uwjE+YSuCUSUlmEfa7IJRu KExg== X-Gm-Message-State: AOAM533YSNIyvIp015WEwxuXnrtLkbh+zrf7pt6J7a5DsIKkhNuLuT+x MnZvNB4FUjEtji5udTnDZzY= X-Received: by 2002:a50:e801:: with SMTP id e1mr3272873edn.251.1594887290101; Thu, 16 Jul 2020 01:14:50 -0700 (PDT) Received: from ubuntu-laptop.micron.com ([165.225.203.62]) by smtp.googlemail.com with ESMTPSA id lm22sm4213084ejb.109.2020.07.16.01.14.42 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 16 Jul 2020 01:14:49 -0700 (PDT) Message-ID: <0e2aaef299235c224051b95793c5e89c3820b1eb.camel@gmail.com> Subject: Re: [PATCH v6 0/5] scsi: ufs: Add Host Performance Booster Support From: Bean Huo To: Avi Shchislowski , "daejun7.park@samsung.com" , Avri Altman , "jejb@linux.ibm.com" , "martin.petersen@oracle.com" , "asutoshd@codeaurora.org" , "beanhuo@micron.com" , "stanley.chu@mediatek.com" , "cang@codeaurora.org" , "bvanassche@acm.org" , "tomas.winkler@intel.com" , ALIM AKHTAR Cc: "linux-scsi@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Sang-yoon Oh , Sung-Jun Park , yongmyung lee , Jinyoung CHOI , Adel Choi , BoRam Shin Date: Thu, 16 Jul 2020 10:14:35 +0200 In-Reply-To: References: <963815509.21594636682161.JavaMail.epsvc@epcpadp2> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5-0ubuntu0.18.04.2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2020-07-15 at 18:34 +0000, Avi Shchislowski wrote: > Hello All, > My name is Avi Shchislowski, I am managing the WDC's Linux Host R&D > team in which Avri is a member of. > As the review process of HPB is progressing very constructively, we > are getting more and more requests from OEMs, Inquiring about HPB in > general, and host control mode in particular. > > Their main concern is that HPB will make it to 5.9 merge window, but > the host control mode patches will not. > Thus, because of recent Google's GKI, the next Android LTS might not > include HPB with host control mode. > > Aside of those requests, initial host control mode testing are > showing promising prospective with respect of performance gain. > > What would be, in your opinion, the best policy that host control > mode is included in next Android LTS? > > Thanks, > Avi > Hi Avi IMO, no matter how did the driver implement, if you truly want the HPB host mode driver you mentioned to be mainlined in the upstream Linux, the best policy is that you should first post the driver in the SCSI maillist community, let us firstly review here. I didn't see your driver, I don't know how to provide the correct answer. Thanks, Bean