[Cake] Does the latest cake support "tc filter"?

[Georgios Amanakis]

> Yes, the version submitted to upstream supports this. You can override
> which tin packets goes in by setting skb->priority from a filter or
> application (the major number needs to be set to the qdisc ID, and the
> minor number becomes the tin to queue packets in).

Toke could you give an example how to do this?

I am trying to put all traffic into tin 0:
#tc qdisc add dev enp1s0 root handle 8001 cake diffserv3 bandwidth 2mbit
#tc filter add dev enp1s0 parent 8001: protocol all \
              u32 match u32 0 0 \
              action skbedit priority 8001:1

However as soon as the second command is executed all traffic drops,
and it only resumes once I remove the filter.

What am I doing wrong?

Thank you,
George

On Thu, May 17, 2018 at 6:42 AM, Toke Høiland-Jørgensen <toke at toke.dk> wrote:
> Fushan Wen <qydwhotmail at gmail.com> writes:
>
>> Hello developers,
>> I've seen the mail in the netdev mailing list, saying "other tc
>> filters supported". So can I use "tc filter" to attach specified
>> traffic to a specified tin without DSCP marks? It's helpful when
>> dealing with ingress traffic where iptables DSCP mark won't work.
>
> Yes, the version submitted to upstream supports this. You can override
> which tin packets goes in by setting skb->priority from a filter or
> application (the major number needs to be set to the qdisc ID, and the
> minor number becomes the tin to queue packets in).
>
> However, these changes have not been backported, so they are not
> available in the cobalt branch. You can pull them from the upstream-4.18
> branch instead. That should build against a current net-next tree, and
> possibly a bit older. Alternatively, you can pull the current patches
> from patchwork and use those. Or wait for a backport after we're done
> with the upstream submission :)
>
> -Toke
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