netdev - Re: [PATCH iproute2-next v2] tc: Add support for ce_threshold_value/mask in fq

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Message-ID: <d7ba6b69-4a17-8d43-b2f1-58b8033684df@gmail.com>
Date:   Mon, 13 Dec 2021 20:24:45 -0700
From:   David Ahern <dsahern@...il.com>
To:     Toke Høiland-Jørgensen <toke@...hat.com>,
        netdev@...r.kernel.org
Subject: Re: [PATCH iproute2-next v2] tc: Add support for
 ce_threshold_value/mask in fq_codel

On 12/8/21 5:45 AM, Toke Høiland-Jørgensen wrote:
> Commit dfcb63ce1de6 ("fq_codel: generalise ce_threshold marking for subset
> of traffic") added support in fq_codel for setting a value and mask that
> will be applied to the diffserv/ECN byte to turn on the ce_threshold
> feature for a subset of traffic.
> 
> This adds support to iproute for setting these values. The parameter is
> called ce_threshold_selector and takes a value followed by a
> slash-separated mask. Some examples:
> 
>  # apply ce_threshold to ECT(1) traffic
>  tc qdisc replace dev eth0 root fq_codel ce_threshold 1ms ce_threshold_selector 0x1/0x3
> 
>  # apply ce_threshold to ECN-capable traffic marked as diffserv AF22
>  tc qdisc replace dev eth0 root fq_codel ce_threshold 1ms ce_threshold_selector 0x50/0xfc
> 
> Signed-off-by: Toke Høiland-Jørgensen <toke@...hat.com>
> ---
> v2:
> - Also update man page
> 
>  man/man8/tc-fq_codel.8 | 11 +++++++++++
>  tc/q_fq_codel.c        | 40 ++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 51 insertions(+)
> 

please remember to cc Stephen and I on iproute2 patches. Otherwise you
are at the mercy of vger - from wild delays in delivery time to
unsubscribing accounts in which case I would never get it.