linux-kernel - Re: UFS utilities

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Date:   Tue, 5 Dec 2017 16:49:56 +0100
From:   "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
To:     "Bean Huo (beanhuo)" <beanhuo@...ron.com>
Cc:     Bart Van Assche <Bart.VanAssche@....com>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "vinholikatti@...il.com" <vinholikatti@...il.com>
Subject: Re: UFS utilities

On Tue, Dec 05, 2017 at 03:44:19PM +0000, Bean Huo (beanhuo) wrote:
> Hi, greg k-h
> 
> >
> >So what UFS commands are you missing that you need to see implemented?
> >
> >And again, have you checked the different forks of the driver?
> >
> 
> Seems there is something misunderstood, I want to use UPIU, rather than CDB.
> Maybe it is not possible based on current UFS stacks. Of course, exactly, 
> there is no missing SCSI command listed in UFS 2.1.

Again, have you looked at the different forks out there?  I bet you can
already do this...

If not, I'm sure simple patches should be able to add the missing
functionality, it would be good to get a solid UFS driver one of these
days in the tree :)

thanks,

greg k-h