bpf/selftests: Add selftest for bpf_smc_hs_ctrl

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This tests introduces a tiny smc_hs_ctrl for filtering SMC connections
based on IP pairs, and also adds a realistic topology model to verify it.

Also, we can only use SMC loopback under CI test, so an additional
configuration needs to be enabled.

Follow the steps below to run this test.

make -C tools/testing/selftests/bpf
cd tools/testing/selftests/bpf
sudo ./test_progs -t smc

Results shows:
Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: D. Wythe <alibuda@linux.alibaba.com>
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Tested-by: Saket Kumar Bhaskar <skb99@linux.ibm.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Link: https://patch.msgid.link/20251107035632.115950-4-alibuda@linux.alibaba.com

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This commit is contained in:

D. Wythe 2025-11-07 11:56:32 +08:00 • committed by Martin KaFai Lau

parent 15f295f556

commit beb3c67297

3 changed files with 512 additions and 0 deletions

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5

tools/testing/selftests/bpf/config

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390

tools/testing/selftests/bpf/prog_tests/test_bpf_smc.c

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117

tools/testing/selftests/bpf/progs/bpf_smc.c

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