linux-kernel - Re: [RESEND][PATCH] scsi: ufs: Fix hynix ufs bug with quirk on hi36xx SoC

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Message-ID: <CALAqxLX0Q3Yo-75CDdG4g7i5G=i5OPi01ApYyJO6wTn4CSCkPA@mail.gmail.com>
Date:   Tue, 16 Oct 2018 16:50:10 -0700
From:   John Stultz <john.stultz@...aro.org>
To:     "Martin K. Petersen" <martin.petersen@...cle.com>
Cc:     lkml <linux-kernel@...r.kernel.org>, Wei Li <liwei213@...wei.com>,
        Vinayak Holikatti <vinholikatti@...il.com>,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        linux-scsi@...r.kernel.org, Dmitry Shmidt <dimitrysh@...gle.com>
Subject: Re: [RESEND][PATCH] scsi: ufs: Fix hynix ufs bug with quirk on hi36xx SoC

On Tue, Oct 16, 2018 at 3:48 PM, John Stultz <john.stultz@...aro.org> wrote:
> On Mon, Oct 15, 2018 at 8:41 PM, Martin K. Petersen
> <martin.petersen@...cle.com> wrote:
>>
>> John,
>>
>>> Hynix ufs has deviations on hi36xx platform which will result in ufs
>>> bursts transfer failures.
>>
>> Is this specific to the particular implementation on hi36xx or all SK
>> Hynix implementations?
>
> I'd have to defer to Wei Li on that question.
>
> Wei Li?

Just to short-cut things a bit, as this is probably an obvious
followup: if it is hi36xx specific, how would you suggest a such a
targeted quirk be added?  I'm not sure I see how to get to the
ufs_dev_desc from the ufs-hisi.c code.

thanks
-john