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

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Message-ID: <20200727093356.nanldba3nfocw3z3@duo.ucw.cz>
Date:   Mon, 27 Jul 2020 11:33:56 +0200
From:   Pavel Machek <pavel@....cz>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     Daejun Park <daejun7.park@...sung.com>,
        "avri.altman@....com" <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>,
        "bvanassche@....org" <bvanassche@....org>,
        "tomas.winkler@...el.com" <tomas.winkler@...el.com>,
        ALIM AKHTAR <alim.akhtar@...sung.com>,
        "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 Wed 2020-07-22 07:39:37, Christoph Hellwig wrote:
> As this monster seesm to come back again and again let me re-iterate
> my statement:
> 
> I do not think Linux should support a broken standards extensions that
> creates a huge share state between the Linux initator and the target
> device like this with all its associated problems.
> 
> Nacked-by: Christoph Hellwig <hch@....de>

To be a bit more constructive.

Yes, pushing (parts) of FTL to the host makes some kind of sense. IIRC
lightnvm is a step into that direction.
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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