netdev - Re: [PATCH net-next v8 15/15] p4tc: Add P4 extern interface

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Date: Mon, 20 Nov 2023 09:22:02 +0100
From: Jiri Pirko <jiri@...nulli.us>
To: Jamal Hadi Salim <jhs@...atatu.com>
Cc: netdev@...r.kernel.org, deb.chatterjee@...el.com,
	anjali.singhai@...el.com, namrata.limaye@...el.com, tom@...anda.io,
	mleitner@...hat.com, Mahesh.Shirshyad@....com,
	tomasz.osinski@...el.com, xiyou.wangcong@...il.com,
	davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
	pabeni@...hat.com, vladbu@...dia.com, horms@...nel.org,
	daniel@...earbox.net, bpf@...r.kernel.org, khalidm@...dia.com,
	toke@...hat.com, mattyk@...dia.com
Subject: Re: [PATCH net-next v8 15/15] p4tc: Add P4 extern interface

Fri, Nov 17, 2023 at 01:14:43PM CET, jhs@...atatu.com wrote:
>On Thu, Nov 16, 2023 at 11:42 AM Jiri Pirko <jiri@...nulli.us> wrote:
>>
>> Thu, Nov 16, 2023 at 03:59:48PM CET, jhs@...atatu.com wrote:
>>
>> [...]
>>
>> > include/net/p4tc.h                |  161 +++
>> > include/net/p4tc_ext_api.h        |  199 +++
>> > include/uapi/linux/p4tc.h         |   61 +
>> > include/uapi/linux/p4tc_ext.h     |   36 +
>> > net/sched/p4tc/Makefile           |    2 +-
>> > net/sched/p4tc/p4tc_bpf.c         |   79 +-
>> > net/sched/p4tc/p4tc_ext.c         | 2204 ++++++++++++++++++++++++++++
>> > net/sched/p4tc/p4tc_pipeline.c    |   34 +-
>> > net/sched/p4tc/p4tc_runtime_api.c |   10 +-
>> > net/sched/p4tc/p4tc_table.c       |   57 +-
>> > net/sched/p4tc/p4tc_tbl_entry.c   |   25 +-
>> > net/sched/p4tc/p4tc_tmpl_api.c    |    4 +
>> > net/sched/p4tc/p4tc_tmpl_ext.c    | 2221 +++++++++++++++++++++++++++++
>> > 13 files changed, 5083 insertions(+), 10 deletions(-)
>>
>> This is for this patch. Now for the whole patchset you have:
>>  30 files changed, 16676 insertions(+), 39 deletions(-)
>>
>> I understand that you want to fit into 15 patches with all the work.
>> But sorry, patches like this are unreviewable. My suggestion is to split
>> the patchset into multiple ones including smaller patches and allow
>> people to digest this. I don't believe that anyone can seriously stand
>> to review a patch with more than 200 lines changes.
>
>This specific patch is not difficult to split into two. I can do that
>and send out minus the first 8 trivial patches - but not familiar with
>how to do "here's part 1 of the patches" and "here's patchset two".

Split into multiple patchsets and send one by one. No need to have all
in at once.


>There's dependency between them so not clear how patchwork and

What dependency. It should compile. Introduce some basic functionality
first and extend it incrementally with other patchsets. The usual way.


>reviewers would deal with it. Thoughts?
>
>Note: The code machinery is really repeatable; for example if you look
>at the tables control you will see very similar patterns to actions
>etc. i.e spending time to review one will make it easy for the rest.
>
>cheers,
>jamal
>
>> [...]