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From:   DENG Qingfang <dqfext@gmail.com>
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Subject: Re: [RFC net-next 1/2] net: dsa: tag_mtk: skip address learning on transmit to standalone ports
Date:   Sat, 31 Jul 2021 01:32:03 +0800
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On Fri, Jul 30, 2021 at 07:24:03PM +0300, Vladimir Oltean wrote:
> Considering that you also have the option of setting
> ds->assisted_learning_on_cpu_port = true and this will have less false
> positives, what are the reasons why you did not choose that approach?

You're right. Hardware learning on CPU port does have some limitations.

I have been testing a multi CPU ports patch, and assisted learning has
to be used, because FDB entries should be installed like multicast
ones, which point to all CPU ports.