> > This is a limitation of the switch. So the driver needs to keep track
> > of which bridge a VLAN belongs to, if it is asked to accelerate the
> > same VLAN for a different bridge, it needs to say to the kernel,
> > sorry, cannot do that, and leave the kernel to do it in software.
>
> Scott, how do you think this must be done? Returning a different error
> code when trying to add a SWITCHDEV_OBJ_PORT_VLAN object?
> Not sure how to query this fallback. Is -EOPNOTSUPP enough?
There was quite a bit of discussion about this a while back. It
should return an error during the prepare phase. Looking at
__vlan_vid_add() and switchdev_fib_ipv4_add, it should return
EOPNOTSUPP.
Andrew
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