linux-kernel - Re: [PATCH v6 0/5] scsi: ufs: Add Host Performance Booster Support

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Message-ID: <4174fcf4-73ec-8e3f-90a5-1e7584e3e2d0@acm.org>
Date:   Wed, 15 Jul 2020 18:41:44 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Avi Shchislowski <Avi.Shchislowski@....com>,
        "daejun7.park@...sung.com" <daejun7.park@...sung.com>,
        Avri Altman <Avri.Altman@....com>,
        "jejb@...ux.ibm.com" <jejb@...ux.ibm.com>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        "beanhuo@...ron.com" <beanhuo@...ron.com>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>,
        "cang@...eaurora.org" <cang@...eaurora.org>,
        "tomas.winkler@...el.com" <tomas.winkler@...el.com>,
        ALIM AKHTAR <alim.akhtar@...sung.com>
Cc:     "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Sang-yoon Oh <sangyoon.oh@...sung.com>,
        Sung-Jun Park <sungjun07.park@...sung.com>,
        yongmyung lee <ymhungry.lee@...sung.com>,
        Jinyoung CHOI <j-young.choi@...sung.com>,
        Adel Choi <adel.choi@...sung.com>,
        BoRam Shin <boram.shin@...sung.com>
Subject: Re: [PATCH v6 0/5] scsi: ufs: Add Host Performance Booster Support

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.