Hi Murali, Murali Karicheri <m-kariche...@ti.com> writes:
> Hi, > > I am testing the taprio (802.1Q Time Aware Shaper) as part of my > pre-work to implement taprio hw offload and test. > > I was able to configure tap prio on my board and looking to do > some traffic test and wondering how to play with the tc command > to direct traffic to a specfic queue. For example I have setup > taprio to create 5 traffic classes as shows below;- > > Now I plan to create iperf streams to pass through different > gates. Now how do I use tc filters to mark the packets to > go through these gates/queues? I heard about skbedit action > in tc filter to change the priority field of SKB to allow > the above mapping to happen. Any example that some one can > point me to? What I have been using for testing these kinds of use cases (like iperf) is to use an iptables rule to set the priority for some kinds of traffic. Something like this: sudo iptables -t mangle -A POSTROUTING -p udp --dport 7788 -j CLASSIFY --set-class 0:3 This will set the skb->priority of UDP packets matching that rule to 3. Another alternative is to create a net_prio cgroup, and the sockets created under that hierarchy would have have that priority. I don't have an example handy for this right now, sorry. Is this what you were looking for? Cheers, -- Vinicius
