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From: John Fastabend <john.fastabend@gmail•com>
To: jakub@cloudflare•com, bpf@vger•kernel.org
Cc: netdev@vger•kernel.org, john.fastabend@gmail•com, andrii@kernel•org
Subject: [PATCH bpf-next v2 0/4] transition sockmap testing to test_progs
Date: Wed, 24 Jan 2024 10:53:59 -0800	[thread overview]
Message-ID: <20240124185403.1104141-1-john.fastabend@gmail.com> (raw)

Its much easier to write and read tests than it was when sockmap was
originally created. At that time we created a test_sockmap prog that
did sockmap tests. But, its showing its age now. For example it reads
user vars out of maps, is hard to run targetted tests, has a different
format from the familiar test_progs and so on.

I recently thought there was an issue with pop helpers so I created
some tests to try and track it down. It turns out it was a bug in the
BPF program we had not the kernel. But, I think it makes sense to
start deprecating test_sockmap and converting these to the nicer
test_progs.

So this is a first round of test_prog tests for sockmap cork and
pop helpers. I'll add push and pull tests shortly. I think its fine,
maybe preferred to review smaller patchsets, to send these
incrementally as I get them created.

Thanks!

v2: fix unint vars in some branches from `make RELEASE=1`


John Fastabend (4):
  bpf: sockmap, add test for sk_msg prog pop msg helper
  bpf: sockmap, add a sendmsg test so we can check that path
  bpf: sockmap, add a cork to force buffering of the scatterlist
  bpf: sockmap test cork and pop combined

 .../bpf/prog_tests/sockmap_helpers.h          |  18 +
 .../bpf/prog_tests/sockmap_msg_helpers.c      | 353 ++++++++++++++++++
 .../bpf/progs/test_sockmap_msg_helpers.c      |  67 ++++
 3 files changed, 438 insertions(+)
 create mode 100644 tools/testing/selftests/bpf/prog_tests/sockmap_msg_helpers.c
 create mode 100644 tools/testing/selftests/bpf/progs/test_sockmap_msg_helpers.c

-- 
2.33.0

next             reply	other threads:[~2024-01-24 18:54 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-24 18:53 John Fastabend [this message]
2024-01-24 18:54 ` [PATCH bpf-next v2 1/4] bpf: sockmap, add test for sk_msg prog pop msg helper John Fastabend
2024-01-26 11:48   ` Jakub Sitnicki
2024-01-26 15:37     ` John Fastabend
2024-01-24 18:54 ` [PATCH bpf-next v2 2/4] bpf: sockmap, add a sendmsg test so we can check that path John Fastabend
2024-01-26 12:17   ` Jakub Sitnicki
2024-01-26 14:24     ` Jakub Sitnicki
2024-01-26 15:38     ` John Fastabend
2024-01-24 18:54 ` [PATCH bpf-next v2 3/4] bpf: sockmap, add a cork to force buffering of the scatterlist John Fastabend
2024-01-26 14:19   ` Jakub Sitnicki
2024-01-26 15:38     ` John Fastabend
2024-01-24 18:54 ` [PATCH bpf-next v2 4/4] bpf: sockmap test cork and pop combined John Fastabend
2024-01-24 22:58 ` [PATCH bpf-next v2 0/4] transition sockmap testing to test_progs John Fastabend
2024-01-26 14:39 ` Jakub Sitnicki
2024-01-26 15:40   ` John Fastabend

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