[PATCH v2 0/2] app/testpmd: assign share group dynamically

Dariusz Sosnowski dsosnowski at nvidia.com
Tue Mar 24 17:56:55 CET 2026


Our internal regression tests have flagged issues with shared Rx queues.
Specifically, issues with domain mismatches:

	Invalid shared rxq config: switch domain mismatch ports 0 and 3

These started appearing after commit [1] which added checks
for globally unique share group indexes.
This could be worked around with --rxq-share=N option,
but it does not allow proper testing of all use cases [2].

This patchset addresses that by changing behavior of --rxq-share parameter.
Instead of relying on user to select proper parameter value,
testpmd will dynamically assign globally unique share group index
to each unique switch and Rx domain.

[1]: 8ebba91086f4 ("app/testpmd: fail on shared Rx queue switch mismatch")
[2]: https://inbox.dpdk.org/dev/yotjxacqrodttraqrr3r6ftut4cty66g6cjnr5ughswtatapgh@gqqkftskp3qq/

v2:
- Add releasing share groups when ports are closed.
- Add static to share_group_slots array definition.
- Remove double empty line in revert commit.

Dariusz Sosnowski (2):
  app/testpmd: assign share group dynamically
  app/testpmd: revert switch domain mismatch check

 app/test-pmd/parameters.c             |  12 +--
 app/test-pmd/testpmd.c                | 122 +++++++++++++++++---------
 app/test-pmd/testpmd.h                |   2 +-
 doc/guides/testpmd_app_ug/run_app.rst |  10 +--
 4 files changed, 87 insertions(+), 59 deletions(-)

--
2.47.3



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