[Cake] Backporting 'tc class' support

[Toke Høiland-Jørgensen]

Georgios Amanakis <gamanakis at gmail.com> writes:

> On Mon, 2018-07-16 at 12:18 +0200, Toke Høiland-Jørgensen wrote:
>> Right, pushed an update to this effect. Will submit it upstream as
>> well
>> once someone has verified that it does what it's supposed to :)
>
> I just verified it works as it should on diffserv3.
>
> # tc qdisc add dev ens4 root handle 8011 cake bandwidth 18000kbit dual-
> dsthost docsis ingress
> # tc filter add dev ens4 parent 8011: protocol all u32 match u32 0 0
> action skbedit priority 8011:1
>
> In the second command: 
> skbedit priority 8011:1 --> Bulk
> skbedit priority 8011:2 --> Best Effort
> skbedit priority 8011:3 --> Voice

Great, thanks for testing! :)

-Toke