I haven't thought about it much for many years, but in order to engage the shaper, a memory area could be passed down to subcake qdiscs, as a hidden qdisc parameter, which would also keep a few other parameters in that area. A NULL would mean it is a top level qdisc.
Did the lockless fifo project ever succeed? -- Podcast: https://www.linkedin.com/feed/update/urn:li:activity:7058793910227111937/ Dave Täht CSO, LibreQos _______________________________________________ Cake mailing list Cake@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cake