luci-mod-network: add qdisc option to device settings

[owldev127]

Expose the per-device qdisc option in the network device configuration form so queueing disciplines can be configured through LuCI.

Ref: #8475

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  $\textsf{Expose the per-device qdisc option in the network device configuration form\color{red}{ so queueing disciplines can be configured through LuCI.}}$

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[systemcrash]

Which daemon or program consumes the qdisc setting?

[owldev127]

@systemcrash
netifd problem consumes qdisc setting so I think we have to update it in backend side to support qdisc setting. Do you agree?

[systemcrash]

I don't see any mentions of qdisc in netifd source. Is this in some helper script?

[owldev127]

I don't see any mentions of qdisc in netifd source. Is this in some helper script?

Yes, I noticed that we need to ask them to add qdisc too. This feature request got a bit complicated.

[owldev127]

Can you ask them to add qdisc setting support?

[systemcrash]

You can ask. I don't use QoS or prioritising, so I don't know what it should do. In any case, this changeis effectively meaningless until the back-end understands what to do with qdisc.

[owldev127]

Yes, I'll try to ask them for it.