net: dsa: b53: Add support for port mirroring
Add support for configuring port mirroring through the cls_matchall classifier. We do a full ingress or egress capture towards the capture port. Future improvements could include leveraging the divider to allow less frames to be captured, as well as matching specific MAC DA/SA. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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