Re: [PATCH] selftests: net: add RDMA CM observability and regression scripts

Re: [PATCH] selftests: net: add RDMA CM observability and regression scripts

[Leon Romanovsky]

On Thu, Apr 16, 2026 at 02:22:24PM +0800, Chenguang Zhao wrote:
> Add a minimal RDMA CM selftest suite that captures observability
> baselines and runs trace, counter-delta, and fault-injection oriented
> checks, plus a review-loop helper for repeated validation rounds.
> 
> Usage (client side):
> - export
>   CM_WORKLOAD_CMD='ib_send_bw -d <dev> -i <port> -R -g <gid> <server_ip>'
>   (User can customize CM_WORKLOAD_CMD)
> - sudo -E make -C tools/testing/selftests
>   TARGETS=drivers/net/rdma run_tests
> 
> Signed-off-by: Chenguang Zhao <zhaochenguang@kylinos.cn>
> ---
>   The first patch adds a focused RDMA CM selftest suite under
>   kselftest to make CM behavior easier to observe and validate
>   in routine regression runs.
> 
>   It introduces baseline collection, trace-sequence checks,
>   counter-delta checks, and failslab-based recovery checks, plus
>   a review-loop script for one-shot serial execution. It also
>   registers drivers/net/rdma in the top-level selftests TARGETS,
>   so the suite runs through standard kselftest flow
>   (make ... TARGETS=drivers/net/rdma run_tests) instead of requiring
>   manual script-by-script execution.
> ---
>  tools/testing/selftests/Makefile              |   1 +
>  .../selftests/drivers/net/rdma/Makefile       |  13 ++
>  .../selftests/drivers/net/rdma/README.md      | 168 ++++++++++++++++++
>  .../drivers/net/rdma/rdma_cm_baseline.sh      |  58 ++++++
>  .../drivers/net/rdma/rdma_cm_counter_delta.sh |  72 ++++++++
>  .../net/rdma/rdma_cm_fault_injection.sh       |  95 ++++++++++
>  .../drivers/net/rdma/rdma_cm_review_loop.sh   |  35 ++++
>  .../net/rdma/rdma_cm_trace_sequence.sh        |  83 +++++++++
>  .../selftests/drivers/net/rdma/rdma_common.sh | 126 +++++++++++++
>  9 files changed, 651 insertions(+)
>  create mode 100644 tools/testing/selftests/drivers/net/rdma/Makefile
>  create mode 100644 tools/testing/selftests/drivers/net/rdma/README.md
>  create mode 100755 tools/testing/selftests/drivers/net/rdma/rdma_cm_baseline.sh
>  create mode 100755 tools/testing/selftests/drivers/net/rdma/rdma_cm_counter_delta.sh
>  create mode 100755 tools/testing/selftests/drivers/net/rdma/rdma_cm_fault_injection.sh
>  create mode 100755 tools/testing/selftests/drivers/net/rdma/rdma_cm_review_loop.sh
>  create mode 100755 tools/testing/selftests/drivers/net/rdma/rdma_cm_trace_sequence.sh
>  create mode 100755 tools/testing/selftests/drivers/net/rdma/rdma_common.sh
> 
> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
> index 984abb6d42ab..0df7034f46b2 100644
> --- a/tools/testing/selftests/Makefile
> +++ b/tools/testing/selftests/Makefile
> @@ -22,6 +22,7 @@ TARGETS += drivers/ntsync
>  TARGETS += drivers/s390x/uvdevice
>  TARGETS += drivers/net
>  TARGETS += drivers/net/bonding
> +TARGETS += drivers/net/rdma

It is very wrong place to put RDMA functionality.
We have tools/testing/selftests/rdma folder for that.

Thanks