[dpdk] add symmetric_mp test #3629
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mcgov
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mcgov
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squirrelsc
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squirrelsc
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@LiliDeng LGTM |
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Pull Request Overview
This PR adds support for the DPDK symmetric_mp multiprocessing test example, which provides better scalability than the existing client_server_mp test for handling multiple ports and processes.
Key changes include:
- Refactoring NIC initialization to accept arbitrary numbers of NICs
- Adding dpdk-devname utility to determine correct DPDK port IDs for netvsc PMD
- Implementing the symmetric_mp test runner with SRIOV rescind testing capabilities
Reviewed Changes
Copilot reviewed 8 out of 8 changed files in this pull request and generated 4 comments.
Show a summary per file
| File | Description |
|---|---|
| dpdkutil.py | Refactored NIC handling functions and added symmetric_mp test runner |
| dpdktestpmd.py | Updated example app path resolution and added devname app support |
| dpdksuite.py | Added new test case for symmetric_mp verification |
| devname/ | Added new utility application for DPDK port ID discovery |
| lisa/nic.py | Enhanced NIC string representation with dev_uuid |
LiliDeng
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Sep 18, 2025
mcgov
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working symmetric_mp for mana and mlx save state more symmetric_mp Dpdk: use more memory Dpdk: symmetric_mp test use debug messages for status Dpdk: move symmetric_mp to dpdkutil to allow rescind/non versions Dpdk: symmetric_mp polishing
Co-authored-by: Copilot <[email protected]>
Co-authored-by: Copilot <[email protected]>
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microsoft/testsuites/dpdk/symmetric_mp/symmetric-mp-patched-main.c
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* DPDK: symmetric_mp test * DPDK: allow arbitrary nics passed to init working symmetric_mp for mana and mlx save state more symmetric_mp Dpdk: use more memory Dpdk: symmetric_mp test use debug messages for status Dpdk: move symmetric_mp to dpdkutil to allow rescind/non versions Dpdk: symmetric_mp polishing * DPDK: allow rescind in symmetric_mp test * DPDK: add devname helper * more symmetric_mp work * dpdk/symmetric_mp: use installation path for examples * dpdk/symmetric_mp: undo replacement example app change * dpdk/symmetric_mp: add assert at the end * symmetric_mp: rebase fix, remove nic index * dpdk/symmetric_mp: comments for run function * dpdk: fix isort ordering in dpdktestpmd.py * Update microsoft/testsuites/dpdk/dpdktestpmd.py Co-authored-by: Copilot <[email protected]> * Update microsoft/testsuites/dpdk/dpdkutil.py Co-authored-by: Copilot <[email protected]> * fix copilot commit line length * dpdk symmetric_mp: add patched version of main.c for old versions of dpdk * fix symmetric_mp path * save patched main file for symmetric_mp * dpdk: remove commented line copilot missed * dpdk: remove commented line that copilot didn't miss --------- Co-authored-by: Copilot <[email protected]>
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Adding a runner for the DPDK example app
multiprocessing/symmetric_mp. This is another flavor of the multiprocessing test which can scale to a larger number of ports and processes than 'multiprocessing/client_server_mp'.Adding this test required a few smaller changes (and one refactor):
With these changes, the test itself is straightforward. We build and start the application; then use enable debug logging and check for the important DPDK netvsc PMD events that show the example app is working as expected.