netdev - Re: [PATCH bpf-next v3 00/14] selftests/bpf: Integrate test_xsk.c to test

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Message-ID: <c07b1af3-3c98-49d8-80e7-926d8a536240@bootlin.com>
Date: Thu, 4 Sep 2025 16:50:58 +0200
From: Bastien Curutchet <bastien.curutchet@...tlin.com>
To: Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Cc: Björn Töpel <bjorn@...nel.org>,
 Magnus Karlsson <magnus.karlsson@...el.com>,
 Jonathan Lemon <jonathan.lemon@...il.com>,
 Alexei Starovoitov <ast@...nel.org>, Daniel Borkmann <daniel@...earbox.net>,
 Andrii Nakryiko <andrii@...nel.org>, Martin KaFai Lau
 <martin.lau@...ux.dev>, Eduard Zingerman <eddyz87@...il.com>,
 Song Liu <song@...nel.org>, Yonghong Song <yonghong.song@...ux.dev>,
 John Fastabend <john.fastabend@...il.com>, KP Singh <kpsingh@...nel.org>,
 Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>,
 Jiri Olsa <jolsa@...nel.org>, Mykola Lysenko <mykolal@...com>,
 Shuah Khan <shuah@...nel.org>, "David S. Miller" <davem@...emloft.net>,
 Jakub Kicinski <kuba@...nel.org>, Jesper Dangaard Brouer <hawk@...nel.org>,
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
 Alexis Lothore <alexis.lothore@...tlin.com>, netdev@...r.kernel.org,
 bpf@...r.kernel.org, linux-kselftest@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next v3 00/14] selftests/bpf: Integrate test_xsk.c to
 test_progs framework

Hi Maciej,

On 9/4/25 4:17 PM, Maciej Fijalkowski wrote:
> On Thu, Sep 04, 2025 at 12:10:15PM +0200, Bastien Curutchet (eBPF Foundation) wrote:
>> Hi all,
>>
>> This is a second version of a series I sent some time ago, it continues
>> the work of migrating the script tests into prog_tests.
>>
>> The test_xsk.sh script covers many AF_XDP use cases. The tests it runs
>> are defined in xksxceiver.c. Since this script is used to test real
>> hardware, the goal here is to leave it as it is, and only integrate the
>> tests that run on veth peers into the test_progs framework.
>>
>> Some tests are flaky so they can't be integrated in the CI as they are.
>> I think that fixing their flakyness would require a significant amount of
>> work. So, as first step, I've excluded them from the list of tests
>> migrated to the CI (see PATCH 13). If these tests get fixed at some
>> point, integrating them into the CI will be straightforward.
>>
>> PATCH 1 extracts test_xsk[.c/.h] from xskxceiver[.c/.h] to make the
>> tests available to test_progs.
>> PATCH 2 to 5 fix small issues in the current test
>> PATCH 7 to 12 handle all errors to release resources instead of calling
>> exit() when any error occurs.
>> PATCH 13 isolates some flaky tests
>> PATCH 14 integrate the non-flaky tests to the test_progs framework
>>
>> Maciej, I've fixed the bug you found in the initial series. I've
>> looked for any hardware able to run test_xsk.sh in my office, but I
>> couldn't find one ... So here again, only the veth part has been tested,
>> sorry about that.
> 
> Hi Bastien,
> 
> just a heads up, I won't be able to review this until 15 sept. If anyone
> else would pick this up earlier then good, otherwise please stay patient
> :)

Thanks for letting me know. There’s no hurry on my side.

Best regards,
--
Bastien Curutchet, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com