DPDK: 5-tuple-swap multiprocess testpmd on a single port#4241
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DPDK: 5-tuple-swap multiprocess testpmd on a single port#4241
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Pull request overview
This PR adds a new DPDK test that validates multiprocess testpmd functionality using a 5-tuple-swap forwarding mode with a single port setup. The test involves two VMs: one VM runs both sender and receiver processes using DPDK multiprocessing, while the other VM acts as a forwarder that swaps MAC and IP addresses to return traffic back to the sender VM.
Changes:
- Introduces multiprocess DPDK support with new enums for process roles and forwarding modes
- Adds
generate_5tswap_run_infofunction to configure the 3-process test topology - Updates command handling throughout to support multiple commands per node (List[str] instead of str)
- Adds new test case
verify_dpdk_testpmd_5tswap_gb_hugepages_netvscto the test suite
Reviewed changes
Copilot reviewed 4 out of 4 changed files in this pull request and generated 10 comments.
| File | Description |
|---|---|
| lisa/microsoft/testsuites/dpdk/common.py | Adds DpdkMpRole and TestpmdForwardMode enums to support multiprocess contexts and different forwarding modes |
| lisa/microsoft/testsuites/dpdk/dpdktestpmd.py | Adds _generate_mp_arguments method and extends generate_testpmd_command to support multiprocess role configuration and custom core lists |
| lisa/microsoft/testsuites/dpdk/dpdkutil.py | Adds generate_5tswap_run_info function for 5-tuple-swap test setup, updates return types to support multiple commands per node, and modifies verify_dpdk_send_receive to handle multiple processes |
| lisa/microsoft/testsuites/dpdk/dpdksuite.py | Adds new test case for 5-tuple-swap multiprocess validation with 1GB hugepages |
| def _generate_mp_arguments( | ||
| self, mp_role: DpdkMpRole, num_procs: int, proc_id: int | ||
| ) -> str: | ||
| # Check and set multi_process arugments for testpmd. |
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Spelling error: "arugments" should be "arguments".
Suggested change
| # Check and set multi_process arugments for testpmd. | |
| # Check and set multi_process arguments for testpmd. |
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adds handling for testpmd multiple processes. will be used for secondary process receiver for 5tswap test.
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Adds a simpler forwarding test using 2 VMs and 1 port. This test uses multiprocess DPDK to create a sender and receiver process on one VM, and a forwarder process on the other. The forwarder sends all traffic back to the first VM by swapping the mac and IP addresses.