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SubjectRE: [PATCH 5/6] staging: fsl-dpaa2/ethsw: Add README
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> -----Original Message-----
> From: linux-arm-kernel [mailto:linux-arm-kernel-bounces@lists.infradead.org]
> On Behalf Of Andrew Lunn
> Sent: Tuesday, September 19, 2017 3:18 PM
> To: Razvan Stefanescu <razvan.stefanescu@nxp.com>
> Cc: devel@driverdev.osuosl.org; Ruxandra Ioana Radulescu
> <ruxandra.radulescu@nxp.com>; arnd@arndb.de; gregkh@linuxfoundation.org;
> Alexandru Marginean <alexandru.marginean@nxp.com>; linux-
> kernel@vger.kernel.org; agraf@suse.de; stuyoder@gmail.com; Bogdan
> Purcareata <bogdan.purcareata@nxp.com>; linux-arm-
> kernel@lists.infradead.org; Laurentiu Tudor <laurentiu.tudor@nxp.com>
> Subject: Re: [PATCH 5/6] staging: fsl-dpaa2/ethsw: Add README
>
> On Tue, Sep 19, 2017 at 12:01:37PM +0300, Razvan Stefanescu wrote:
> > +Driver uses the switch device driver model and exposes each switch port as
> > +a network interface, which can be included in a bridge. Traffic switched
> > +between ports is offloaded into the hardware. Exposed network interfaces
> > +are not used for I/O, they are used just for configuration. This
> > +limitation is going to be addressed in the future.
>
> Hi Razvan
>
> Could you briefly describe how Ethernet frames get from the CPU to the
> switch. This is what decided if you should write a plain switchdev
> driver, or a DSA driver.
>
> Andrew
>
Hello Andrew,

CPU frame handling will be added in a later. Each netdevice associated
to a switch port will have I/O capabilities like dpaa2-ethernet devices.
The dpaa2-ethsw will use ACLs to redirect specific types of frames
(i.e BPDUs) to CPU.

Best regards,
Razvan S.



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