netdev - Re: How does vlan driver pass vlan info to the h/w ethernet driver

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Message-ID: <CABM+yxmdJD2k1kA+fY9Yva24oB8BuDDhS-FQdY2EJM1ghf6xWw@mail.gmail.com>
Date:   Mon, 1 May 2017 10:52:17 -0400
From:   carl h <heyen2000@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     netdev@...r.kernel.org
Subject: Re: How does vlan driver pass vlan info to the h/w ethernet driver

The Ethernet hardware *is* a 2 port switch in a phone which does support
vlan tag insertion in the switch and driver. The driver is third party which
I'm trying to get working with vlans.

But i can't see how the vlan info propagates down to the switch driver.





On Mon, May 1, 2017 at 10:37 AM, Andrew Lunn <andrew@...n.ch> wrote:
>> > By what mechanism does the vlan driver (8021q.ko) tell the Ethernet
>> > hardware about a vlan?
>
> Why would the Ethernet hardware need to know?
>
> An Ethernet Switch might need to know. If so, then switchdev would be
> used, include/net/switchdev.h
>
>     Andrew