Re: [PATCH v2 net-next 2/6] net: dsa: don't use switchdev_notifier_fdb_info in dsa_switchdev_event_work

From: Florian Fainelli
Date: Sat Dec 12 2020 - 22:47:25 EST




On 12/12/2020 6:40 PM, Vladimir Oltean wrote:
> Currently DSA doesn't add FDB entries on the CPU port, because it only
> does so through switchdev, which is associated with a net_device, and
> there are none of those for the CPU port.
>
> But actually FDB addresses on the CPU port have some use cases of their
> own, if the switchdev operations are initiated from within the DSA
> layer. There is just one problem with the existing code: it passes a
> structure in dsa_switchdev_event_work which was retrieved directly from
> switchdev, so it contains a net_device. We need to generalize the
> contents to something that covers the CPU port as well: the "ds, port"
> tuple is fine for that.
>
> Note that the new procedure for notifying the successful FDB offload is
> inspired from the rocker model.
>
> Also, nothing was being done if added_by_user was false. Let's check for
> that a lot earlier, and don't actually bother to schedule the worker
> for nothing.
>
> Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>

Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
--
Florian