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From: Avi Shchislowski <Avi.Shchislowski@wdc.com>
To: Alim Akhtar <alim.akhtar@samsung.com>,
	'Bart Van Assche' <bvanassche@acm.org>,
	"daejun7.park@samsung.com" <daejun7.park@samsung.com>,
	Avri Altman <Avri.Altman@wdc.com>,
	"jejb@linux.ibm.com" <jejb@linux.ibm.com>,
	"martin.petersen@oracle.com" <martin.petersen@oracle.com>,
	"asutoshd@codeaurora.org" <asutoshd@codeaurora.org>,
	"beanhuo@micron.com" <beanhuo@micron.com>,
	"stanley.chu@mediatek.com" <stanley.chu@mediatek.com>,
	"cang@codeaurora.org" <cang@codeaurora.org>,
	"tomas.winkler@intel.com" <tomas.winkler@intel.com>
Cc: "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	'Sang-yoon Oh' <sangyoon.oh@samsung.com>,
	'Sung-Jun Park' <sungjun07.park@samsung.com>,
	'yongmyung lee' <ymhungry.lee@samsung.com>,
	'Jinyoung CHOI' <j-young.choi@samsung.com>,
	'Adel Choi' <adel.choi@samsung.com>,
	'BoRam Shin' <boram.shin@samsung.com>
Subject: RE: [PATCH v6 0/5] scsi: ufs: Add Host Performance Booster Support
Date: Fri, 17 Jul 2020 15:54:35 +0000
Message-ID: <SN6PR04MB3872EF1315A288E6A7064E359A7C0@SN6PR04MB3872.namprd04.prod.outlook.com> (raw)
In-Reply-To: <001301d65b90$8012c3e0$80384ba0$@samsung.com>

Hi
Thanks to everyone for the clarifications

Thanks,
Avi
> -----Original Message-----
> From: Alim Akhtar <alim.akhtar@samsung.com>
> Sent: Thursday, July 16, 2020 7:45 PM
> To: Avi Shchislowski <Avi.Shchislowski@wdc.com>; 'Bart Van Assche'
> <bvanassche@acm.org>; daejun7.park@samsung.com; Avri Altman
> <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
> Cc: linux-scsi@vger.kernel.org; linux-kernel@vger.kernel.org; 'Sang-yoon Oh'
> <sangyoon.oh@samsung.com>; 'Sung-Jun Park'
> <sungjun07.park@samsung.com>; 'yongmyung lee'
> <ymhungry.lee@samsung.com>; 'Jinyoung CHOI' <j-
> young.choi@samsung.com>; 'Adel Choi' <adel.choi@samsung.com>; 'BoRam
> Shin' <boram.shin@samsung.com>
> Subject: RE: [PATCH v6 0/5] 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.
> 
> 
> Hi Avi,
> 
> > -----Original Message-----
> > From: Avi Shchislowski <Avi.Shchislowski@wdc.com>
> > Sent: 16 July 2020 15:31
> > To: Bart Van Assche <bvanassche@acm.org>; daejun7.park@samsung.com;
> > Avri Altman <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 <alim.akhtar@samsung.com>
> > Cc: linux-scsi@vger.kernel.org; linux-kernel@vger.kernel.org;
> > Sang-yoon Oh <sangyoon.oh@samsung.com>; Sung-Jun Park
> > <sungjun07.park@samsung.com>; yongmyung lee
> > <ymhungry.lee@samsung.com>; Jinyoung CHOI <j-
> young.choi@samsung.com>;
> > Adel Choi <adel.choi@samsung.com>; BoRam Shin
> <boram.shin@samsung.com>
> > Subject: RE: [PATCH v6 0/5] scsi: ufs: Add Host Performance Booster
> > Support
> >
> >
> >
> > > -----Original Message-----
> > > From: Bart Van Assche <bvanassche@acm.org>
> > > Sent: Thursday, July 16, 2020 4:42 AM
> > > To: Avi Shchislowski <Avi.Shchislowski@wdc.com>;
> > > daejun7.park@samsung.com; Avri Altman <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
> > > <alim.akhtar@samsung.com>
> > > Cc: linux-scsi@vger.kernel.org; linux-kernel@vger.kernel.org;
> > > Sang-yoon Oh <sangyoon.oh@samsung.com>; Sung-Jun Park
> > > <sungjun07.park@samsung.com>; yongmyung lee
> > > <ymhungry.lee@samsung.com>; Jinyoung CHOI <j-
> > young.choi@samsung.com>;
> > > Adel Choi <adel.choi@samsung.com>; BoRam Shin
> > <boram.shin@samsung.com>
> > > Subject: Re: [PATCH v6 0/5] 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.
> >
> > Yes, I am referring to the current proposal which I am replying to:
> > [PATCH v6 0/5] scsi: ufs: Add Host Performance Booster Support This
> > proposal 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 ?
> >
> This series has nothing to do with Host mode control, this series is targeted for
> device mode control. General consensus here is to land this series as it is (unless
> someone has more review comments) and lets add/enhance whatever need to
> be done for adding Host mode controls as well as other HPB2.0 related changes.
> 
> > Thanks,
> > Avi


  reply index

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20200713103423epcms2p8442ee7cc22395e4a4cedf224f95c45e8@epcms2p8>
2020-07-13 10:34 ` Daejun Park
     [not found]   ` <CGME20200713103423epcms2p8442ee7cc22395e4a4cedf224f95c45e8@epcms2p4>
2020-07-13 10:40     ` [PATCH v6 2/5] scsi: ufs: Add UFS-feature layer Daejun Park
2020-07-22  6:41       ` Christoph Hellwig
2020-07-22 12:46         ` Martin K. Petersen
2020-07-22 15:06           ` Bart Van Assche
2020-07-13 10:53     ` [PATCH v6 4/5] scsi: ufs: L2P map management for HPB read Daejun Park
2020-07-15 18:34   ` [PATCH v6 0/5] scsi: ufs: Add Host Performance Booster Support Avi Shchislowski
2020-07-16  1:41     ` Bart Van Assche
2020-07-16 10:00       ` Avi Shchislowski
2020-07-16 16:21         ` Eric Biggers
2020-07-16 16:45         ` Alim Akhtar
2020-07-17 15:54           ` Avi Shchislowski [this message]
2020-08-10 15:38         ` Greg KH
2020-07-16  8:13     ` Bean Huo
2020-07-16  8:14     ` Bean Huo
2020-07-16  1:05   ` Alim Akhtar
2020-07-17  5:24     ` Avri Altman
2020-07-19  6:35       ` Avri Altman
2020-07-21 18:15         ` Alim Akhtar
2020-07-22  4:20         ` Martin K. Petersen
2020-07-22  6:18           ` Avri Altman
2020-07-22  6:39   ` Christoph Hellwig
2020-07-22 13:27     ` Martin K. Petersen
2020-07-22 14:34       ` Bart Van Assche
2020-07-27  9:33     ` Pavel Machek
     [not found]   ` <CGME20200713103423epcms2p8442ee7cc22395e4a4cedf224f95c45e8@epcms2p3>
2020-07-13 10:38     ` [PATCH v6 1/5] scsi: ufs: Add UFS feature related parameter Daejun Park
2020-07-13 12:13       ` Can Guo
2020-07-13 10:58     ` [PATCH v6 5/5] scsi: ufs: Prepare HPB read for cached sub-region Daejun Park
2020-07-27  6:18     ` [PATCH v6 2/5] scsi: ufs: Add UFS-feature layer Daejun Park
2020-08-04 18:43       ` Bart Van Assche
     [not found]   ` <CGME20200713103423epcms2p8442ee7cc22395e4a4cedf224f95c45e8@epcms2p1>
2020-07-13 10:50     ` [PATCH v6 3/5] scsi: ufs: Introduce HPB module Daejun Park
2020-08-04 23:33     ` Re: [PATCH v6 2/5] scsi: ufs: Add UFS-feature layer Daejun Park

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