Re: [patch net-next RFC 0/4] net: sched: allow qdiscs to share filter block instances

On Mon, Jul 10, 2017 at 9:51 PM, Jiri Pirko [off-list ref] wrote:

From: Jiri Pirko <redacted>

Currently the filters added to qdiscs are independent. So for example if you
have 2 netdevices and you create ingress qdisc on both and you want to add
identical filter rules both, you need to add them twice. This patchset
makes this easier and mainly saves resources allowing to share all filters
within a qdisc - I call it a "filter block". Also this helps to save
resources when we do offload to hw for example to expensive TCAM.

[...]

Now we can add filter to any of qdiscs sharing the same block:
$ tc filter add dev ens7 parent ffff: protocol ip pref 25 flower dst_ip 192.168.0.0/16 action drop

We will see the same output if we list filters for ens7 and ens8, including stats:

yeah, but the stats belong to the action, not the filter, right? so you create
here actually a shared action? or you also introduced in that series stats
for filters, I am confused...

Or.