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

[Jiri Pirko <jiri@resnulli.us>]

Tue, Jul 11, 2017 at 08:57:30AM CEST, gerlitz.or@gmail.com wrote:
>On Mon, Jul 10, 2017 at 9:51 PM, Jiri Pirko <jiri@resnulli.us> wrote:
>> From: Jiri Pirko <jiri@mellanox.com>
>>
>> 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...

Filters are shared along with all that belongs to them, so including
actions.