Re: [RFC 0/4] net: l2switch: Provide support for L2 switch on i.MX28 SoC

[Florian Fainelli]

On 11/25/2020 4:00 PM, Andrew Lunn wrote:
> On Thu, Nov 26, 2020 at 12:24:55AM +0100, Lukasz Majewski wrote:
>> This is the first attempt to add support for L2 switch available on some NXP
>> devices - i.e. iMX287 or VF610. This patch set uses common FEC and DSA code.
> 
> Interesting. I need to take another look at the Vybrid manual. Last
> time i looked, i was more thinking of a pure switchdev driver, not a
> DSA driver. So i'm not sure this is the correct architecture. But has
> been a while since i looked at the datasheet.

Agreed the block diagram shows one DMA for each "switch port" which
definitively fits more within the switchdev model than the DSA model
that re-purposes an existing Ethernet MAC controller as-is and bolts on
an integrated or external switch IC.
-- 
Florian