linux-kernel - Re: [RFC PATCH 02/13] scsi: ufshpb: Init part I

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Message-ID: <5d867abf-7ea5-9097-c588-53dd73f004d4@infradead.org>
Date:   Fri, 15 May 2020 08:33:12 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Avri Altman <avri.altman@....com>,
        "James E . J . Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Bart Van Assche <bvanassche@....org>, alim.akhtar@...sung.com,
        asutoshd@...eaurora.org, Zang Leigang <zangleigang@...ilicon.com>,
        Avi Shchislowski <avi.shchislowski@....com>,
        Bean Huo <beanhuo@...ron.com>, cang@...eaurora.org,
        stanley.chu@...iatek.com,
        MOHAMMED RAFIQ KAMAL BASHA <md.rafiq@...sung.com>,
        Sang-yoon Oh <sangyoon.oh@...sung.com>,
        yongmyung lee <ymhungry.lee@...sung.com>,
        Jinyoung CHOI <j-young.choi@...sung.com>
Subject: Re: [RFC PATCH 02/13] scsi: ufshpb: Init part I - Read HPB config

Hi--

On 5/15/20 3:30 AM, Avri Altman wrote:
> diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
> index e2005ae..a540919 100644
> --- a/drivers/scsi/ufs/Kconfig
> +++ b/drivers/scsi/ufs/Kconfig
> @@ -160,3 +160,15 @@ config SCSI_UFS_BSG
>  
>  	  Select this if you need a bsg device node for your UFS controller.
>  	  If unsure, say N.
> +
> +config SCSI_UFS_HPB
> +	bool "Support UFS Host Performance Booster (HPB)"
> +        depends on SCSI_UFSHCD
> +        help
> +	  A UFS feature targeted to improve random read performance.  It uses
> +	  the host’s system memory as a cache for L2P map data, so that both
> +	  physical block address (PBA) and logical block address (LBA) can be
> +	  delivered in HPB read command.
> +
> +          Select this to enable this feature.
> +          If unsure, say N.

Please follow Documentation/process/coding-style.rst for Kconfig files:

Lines under a ``config`` definition are indented with
one tab, while help text is indented an additional two spaces.

I.e., not a mixture.

thanks.
-- 
~Randy