From: Florian Fainelli <f.fainelli@gmail.com>
To: Vladimir Oltean <olteanv@gmail.com>
Cc: netdev <netdev@vger.kernel.org>, Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>
Subject: Re: VLAN filtering with DSA
Date: Thu, 10 Sep 2020 12:05:17 -0700 [thread overview]
Message-ID: <7b23a257-6ac2-e6b2-7df8-9df28973e315@gmail.com> (raw)
In-Reply-To: <20200910190119.n2mnqkv2toyqbmzn@skbuf>
On 9/10/2020 12:01 PM, Vladimir Oltean wrote:
> On Thu, Sep 10, 2020 at 11:42:02AM -0700, Florian Fainelli wrote:
>> On 9/10/2020 8:07 AM, Vladimir Oltean wrote:
>> Yes, doing what you suggest would make perfect sense for a DSA master that
>> is capable of VLAN filtering, I did encounter that problem with e1000 and
>> the dsa-loop.c mockup driver while working on a mock-up 802.1Q data path.
>
> Yes, I have another patch where I add those VLANs from tag_8021q.c which
> I did not show here.
>
> But if the DSA switch that uses tag_8021q is cascaded to another one,
> that's of little use if the upper switch does not propagate that
> configuration to its own upstream.
Yes, that would not work. As soon as you have a bridge spanning any of
those switches, does not the problem go away by virtue of the switch
port forcing the DSA master/upstream to be in promiscuous mode?
--
Florian
next prev parent reply other threads:[~2020-09-10 19:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-10 15:07 VLAN filtering with DSA Vladimir Oltean
2020-09-10 18:41 ` Florian Fainelli
2020-09-11 13:20 ` Ido Schimmel
2020-09-11 16:30 ` Vladimir Oltean
2020-09-11 16:32 ` Vladimir Oltean
2020-09-11 16:57 ` Florian Fainelli
2020-09-10 18:42 ` Florian Fainelli
2020-09-10 19:01 ` Vladimir Oltean
2020-09-10 19:05 ` Florian Fainelli [this message]
2020-09-10 19:08 ` Vladimir Oltean
2020-09-10 19:09 ` Florian Fainelli
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