Triband radio support

[maurerle]

I'd like to reopen the changes from #1666 to make way to support #1661

This works quite well and exposes the three wifis correctly on the status-page:

radio0, 5GHz, 144 (client wifi)
radio1, 2.4GHz, 11 (client + mesh)
radio2, 5GHz, 44 (mesh)

and also the config mode shows the expected default config for such devices:

We might want to:

• grey out the mesh network operation if a radio does only support DFS channels
• adjust config to detect how wifis should be distributed best across the channels
• move whole wireless configuration in uci to gluon.wireless in the future

This is currently focusing on having two 5GHz bands, where at least one does not support all channels.

[herbetom]

I think the mac address problem is as of now unresolved? #1666 (comment)

[maurerle]

To be honest, I did not really understand the problem with the MAC yet

I see that with 294b291 we add to the prior mac part if our counter overflows.
This seemed to work fine so I did not really understand what still has to be done about that

[T-X]

Would love to see the triband support! Devices with potential triband support and Gluon support I'm aware of: Plasmacloud PA2200 and the LibreRouter. Any other devices people would look forward to for triband support? Also, I guess this was untested with 6GHz so far? (I'd be looking forward to the Banana Pi BPI-R4, for instance, seems to have a dedicated phy for 6GHz for the WiFi7 iPA NIC module)

[maurerle]

I think @Djfe gave a quite extensive list of affected devices in #1661 (comment)

For now, this does not include 6GHz. I have some ideas to add counters to the 6g band as well, but this would create to much noise and untested code (and I am not to familiar with 6GHz frequencies) , so I think we should do this one at a time.

From the list of open todos, I think I can handle the first two eventually, but would definitely need help for a complete overhaul (I think this way stopping the old PR mainly?). If there is someone willing to draft something where I can built on, improve and test, I would be very happy :)

[herbetom]

@T-X Wifi 6E is probably another can of worms but relies on resolving the tripple radio problem #2906

@maurerle The mac address problem is from my understanding that we need more then the current 8 but this has to be carefully considered to not cause collisions (#2061, #1983). Just statically assigning more might not be the best approach