linux-kernel - Re: [PATCH v3 net-next 00/15] Traffic support for dsa_8021q in vlan

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Message-Id: <20200512.131052.2208472827152242233.davem@davemloft.net>
Date:   Tue, 12 May 2020 13:10:52 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     olteanv@...il.com
Cc:     andrew@...n.ch, f.fainelli@...il.com, vivien.didelot@...il.com,
        kuba@...nel.org, jiri@...lanox.com, idosch@...sch.org,
        rmk+kernel@...linux.org.uk, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 net-next 00/15] Traffic support for dsa_8021q in
 vlan_filtering=1 mode

From: Vladimir Oltean <olteanv@...il.com>
Date: Tue, 12 May 2020 20:20:24 +0300

> From: Vladimir Oltean <vladimir.oltean@....com>
> 
> This series is an attempt to support as much as possible in terms of
> traffic I/O from the network stack with the only dsa_8021q user thus
> far, sja1105.
> 
> The hardware doesn't support pushing a second VLAN tag to packets that
> are already tagged, so our only option is to combine the dsa_8021q with
> the user tag into a single tag and decode that on the CPU.
> 
> The assumption is that there is a type of use cases for which 7 VLANs
> per port are more than sufficient, and that there's another type of use
> cases where the full 4096 entries are barely enough. Those use cases are
> very different from one another, so I prefer trying to give both the
> best experience by creating this best_effort_vlan_filtering knob to
> select the mode in which they want to operate in.
 ...

Series applied, thanks Vladimir.