netdev - Re: [PATCH iproute2-next v2 2/2] tc: implement support for terse dump

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Date:   Wed, 7 Oct 2020 18:40:22 -0700
From:   David Ahern <dsahern@...il.com>
To:     Vlad Buslov <vladbu@...dia.com>, stephen@...workplumber.org,
        jhs@...atatu.com, xiyou.wangcong@...il.com
Cc:     netdev@...r.kernel.org, davem@...emloft.net, jiri@...nulli.us,
        ivecera@...hat.com, Vlad Buslov <vladbu@...lanox.com>
Subject: Re: [PATCH iproute2-next v2 2/2] tc: implement support for terse dump

On 9/30/20 9:59 AM, Vlad Buslov wrote:
> From: Vlad Buslov <vladbu@...lanox.com>
> 
> Implement support for classifier/action terse dump using new TCA_DUMP_FLAGS
> tlv with only available flag value TCA_DUMP_FLAGS_TERSE. Set the flag when
> user requested it with following example CLI (-br for 'brief'):
> 
>> tc -s -br filter show dev ens1f0 ingress
> 
> In terse mode dump only outputs essential data needed to identify the
> filter and action (handle, cookie, etc.) and stats, if requested by the
> user. The intention is to significantly improve rule dump rate by omitting
> all static data that do not change after rule is created.
> 

I really want to get agreement from other heavy tc users about what the
right information is for a brief mode.