netdev - Re: [PATCH v3 net-next 0/5] IGMP snooping for local traffic

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Message-ID: <20171107221710.GE21784@lunn.ch>
Date:   Tue, 7 Nov 2017 23:17:10 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Vivien Didelot <vivien.didelot@...oirfairelinux.com>,
        David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH v3 net-next 0/5] IGMP snooping for local traffic

> In a switch case, they all translate to programming a MDB entry for
> a given switch port, right?

No, in fact it is the exact opposite.

A normal switchdev MDB says send traffic for a group OUT this port.

A host switchdev MDB says send traffic coming IN from a port to the
CPU.

This is why i think there should be two different switchdev calls, but
Vivien wants one call, and to look carefully at the parameters to
determine which of the two above to do.

	  Andrew