linux-kernel - RE: [PATCH v6 1/2] staging: fsl-mc: Move core bus out of staging

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Message-ID: <AM0PR0402MB3649BC95F62CDAA921CF361DEAFD0@AM0PR0402MB3649.eurprd04.prod.outlook.com>
Date:   Tue, 6 Feb 2018 08:57:10 +0000
From:   Bogdan Purcareata <bogdan.purcareata@....com>
To:     Horia Geantă <horia.geanta@....com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Ruxandra Ioana Ciocoi Radulescu <ruxandra.radulescu@....com>
CC:     "stuyoder@...il.com" <stuyoder@...il.com>,
        "arnd@...db.de" <arnd@...db.de>,
        "robh@...nel.org" <robh@...nel.org>,
        Razvan Stefanescu <razvan.stefanescu@....com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Nipun Gupta <nipun.gupta@....com>,
        Roy Pledge <roy.pledge@....com>,
        "marc.zyngier@....com" <marc.zyngier@....com>,
        "tglx@...utronix.de" <tglx@...utronix.de>,
        "jason@...edaemon.net" <jason@...edaemon.net>,
        "devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: RE: [PATCH v6 1/2] staging: fsl-mc: Move core bus out of staging

> -----Original Message-----
> From: Horia Geantă
> Sent: Tuesday, February 06, 2018 9:18 AM
> To: Bogdan Purcareata <bogdan.purcareata@....com>; gregkh@...uxfoundation.org;
> Laurentiu Tudor <laurentiu.tudor@....com>; Ruxandra Ioana Ciocoi Radulescu
> <ruxandra.radulescu@....com>
> Cc: stuyoder@...il.com; arnd@...db.de; robh@...nel.org; Razvan Stefanescu
> <razvan.stefanescu@....com>; Ioana Ciornei <ioana.ciornei@....com>; Nipun Gupta
> <nipun.gupta@....com>; Roy Pledge <roy.pledge@....com>; marc.zyngier@....com;
> tglx@...utronix.de; jason@...edaemon.net; devel@...verdev.osuosl.org; linux-
> kernel@...r.kernel.org; linux-arm-kernel@...ts.infradead.org
> Subject: Re: [PATCH v6 1/2] staging: fsl-mc: Move core bus out of staging
> 
> On 2/5/2018 4:08 PM, Bogdan Purcareata wrote:
> > Move the source files out of staging into their final locations:
> >   -mc.h include file in drivers/staging/fsl-mc/include go to
> include/linux/fsl
> >   -source files in drivers/staging/fsl-mc/bus go to drivers/bus/fsl-mc
> >   -overview.rst, providing an overview of DPAA2, goes to
> >    Documentation/networking/dpaa2/overview.rst
> [...]
> >  rename {drivers/staging/fsl-mc =>
> Documentation/networking/dpaa2}/overview.rst (100%)
> 
> Is this the proper location for documentation?
> The doc focuses on networking, however there's also information about fsl mc
> bus, dpio.

Yes, after internal discussions we concluded it would be the best fit, since
the end usage scenario is a networking one. So far the main user of the fsl-mc
bus and dpio is dpaa2-eth, which is an Ethernet driver. It's also next to the
previous DPAA generation driver documentation at Documentation/networking/dpaa.txt.

> In the future, we might want to add doc for other dpaa2 objects sitting on the
> fsl mc bus:
> -dpseci ("Data Path SEC Interface" - abstraction for the crypto engine)
> -dpdcei ("Data Path Decompression and Compression Engine Interface")
> 
> Would these fit under networking doc folder too?

IMO it would make sense to place them in the same Documentation/networking/dpaa2/
folder, since they're part of the same architecture. Of course, the end location
can be changed based on later feedback.

Cheers,
Bogdan P.