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charset="utf-8" X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P X-CMS-RootMailID: 20200713103423epcms2p8442ee7cc22395e4a4cedf224f95c45e8 References: <963815509.21594636682161.JavaMail.epsvc@epcpadp2> <4174fcf4-73ec-8e3f-90a5-1e7584e3e2d0@acm.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Avi, > -----Original Message----- > From: Avi Shchislowski > Sent: 16 July 2020 15:31 > To: Bart Van Assche ; daejun7.park=40samsung.com; A= vri > Altman ; jejb=40linux.ibm.com; > martin.petersen=40oracle.com; asutoshd=40codeaurora.org; > beanhuo=40micron.com; stanley.chu=40mediatek.com; cang=40codeaurora.org; > tomas.winkler=40intel.com; ALIM AKHTAR > Cc: linux-scsi=40vger.kernel.org; linux-kernel=40vger.kernel.org; Sang-yo= on Oh > ; Sung-Jun Park > ; yongmyung lee > ; Jinyoung CHOI ; > Adel Choi ; BoRam Shin > > Subject: RE: =5BPATCH v6 0/5=5D scsi: ufs: Add Host Performance Booster S= upport >=20 >=20 >=20 > > -----Original Message----- > > From: Bart Van Assche > > Sent: Thursday, July 16, 2020 4:42 AM > > To: Avi Shchislowski ; > > daejun7.park=40samsung.com; Avri Altman ; > > jejb=40linux.ibm.com; martin.petersen=40oracle.com; > > asutoshd=40codeaurora.org; beanhuo=40micron.com; > stanley.chu=40mediatek.com; > > cang=40codeaurora.org; tomas.winkler=40intel.com; ALIM AKHTAR > > > > Cc: linux-scsi=40vger.kernel.org; linux-kernel=40vger.kernel.org; > > Sang-yoon Oh ; Sung-Jun Park > > ; yongmyung lee > > ; Jinyoung CHOI young.choi=40samsung.com>; > > Adel Choi ; BoRam Shin > > > Subject: Re: =5BPATCH v6 0/5=5D scsi: ufs: Add Host Performance Booster > > Support > > > > CAUTION: This email originated from outside of Western Digital. Do not > > click on links or open attachments unless you recognize the sender and > > know that the content is safe. > > > > > > On 2020-07-15 11:34, Avi Shchislowski wrote: > > > 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? > > > > Hi Avi, > > > > Are you perhaps referring to the HPB patch series that has already been > posted? > > Although I'm not sure of this, I think that the SCSI maintainer > > expects more > > Reviewed-by: and Tested-by: tags. Has anyone from WDC already taken > > the time to review and/or test this patch series? > > > > Thanks, > > > > Bart. >=20 > Yes, I am referring to the current proposal which I am replying to: > =5BPATCH v6 0/5=5D scsi: ufs: Add Host Performance Booster Support This p= roposal > does not contains host mode, hence our customers concern. > What would be, in your opinion, the best policy that host control mode is > included in next Android LTS assuming it will be based on kernel v5.9 ? >=20 This series has nothing to do with Host mode control, this series is target= ed for device mode control. General consensus here is to land this series a= s it is (unless someone has more review comments) and lets add/enhance what= ever need to be done for adding Host mode controls as well as other HPB2.0 = related changes. > Thanks, > Avi