linux-kernel - Re: [PATCH v8] ufs: core: print UFSHCD capabilities in controller's sysfs node

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Message-ID: <yq11qsogc4w.fsf@ca-mkp.ca.oracle.com>
Date:   Tue, 06 Sep 2022 22:19:11 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     Daniil Lunev <dlunev@...omium.org>
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        Bart Van Assche <bvanassche@....org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Bean Huo <beanhuo@...ron.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        Keoseong Park <keosung.park@...sung.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Sohaib Mohamed <sohaib.amhmd@...il.com>,
        linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org
Subject: Re: [PATCH v8] ufs: core: print UFSHCD capabilities in controller's
 sysfs node


Daniil,

> Userspace may want to manually control when the data should go into
> WriteBooster buffer. The control happens via "wb_on" node, but
> presently, there is no simple way to check if WriteBooster is
> supported and enabled. This change exposes the Write Booster and Clock
> Scaling capabilities to be able to determin if the Write Booster is
> available and if its manual control is blocked by Clock Scaling
> mechanism.

Applied to 6.1/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering