I need to work with clsact qdisc and ebpf filter on it but at the same time I want to shape my traffic using e.g. htb qdisc.
While clsact acts as a root qdisc I can't attach it as a leaf of any of htb classes. At the same time clsact is classless qdisc and I can't attach any qdisc underneath it.
ebpf program working as filter with direct-action (da) flag can return classid in skb->tc_classid and I would like to use it to choose a right class (what class if clsact is classless?).