Re: [PATCH net-next 0/9] DSA changes for multiple CPU ports (part 4)

On 9/2/2022 3:31 AM, Vladimir Oltean wrote:

On Tue, Aug 30, 2022 at 10:59:23PM +0300, Vladimir Oltean wrote:

quoted

This series represents the final part of that effort. We have:

- the introduction of new UAPI in the form of IFLA_DSA_MASTER

Call for opinions: when I resend this, should I keep rtnl_link_ops,
or should I do what Marek attempted to do, and make the existing iflink
between a user port and its master writable from user space?
https://lore.kernel.org/netdev/20190824024251.4542-4-marek.behun@nic.cz/ (local)

I'm not sure if we have that many more use cases for rtnl_link_ops..

It's a bit hard to see one right now, I agree.

at some point I was thinking we could change the way in which dsa_loop
probes, and allow dynamic creation of such interfaces using RTM_NEWLINK;
but looking closer at that, it's a bit more complicated, since we'd need
to attach dsa_loop user ports to a virtual switch, and probe all ports
at the same time rather than one by one.

Yes, not sure the custom netlink operations would be the preferred way 
of doing that configuration, maybe module parameters and/or debugfs 
might just do?
-- 
Florian