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

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Message-ID: <20170501143703.GA1285@lunn.ch>
Date:   Mon, 1 May 2017 16:37:03 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     carl h <heyen2000@...il.com>
Cc:     netdev@...r.kernel.org
Subject: Re: How does vlan driver pass vlan info to the h/w ethernet driver

> > 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