Dpdk: add a uevent listener helper app - #4661
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Hot plug tests need to know exactly when the kernel adds or removes a VF, its uverbs node, its ib device and its netdev, but DPDK's own rte_dev_event_monitor only parses pci, uio and vfio events that carry PCI_SLOT_NAME, so it drops every vmbus, net and infiniband uevent that matters on Azure. Add a small helper that listens on NETLINK_KOBJECT_UEVENT directly and prints a tagged, single line per event that tests can match on. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com> Copilot-Session: 5d5f58ad-b9df-4420-ad37-22caee78e925
mcgov (mcgov)
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LiliDeng and
Johnson (johnsongeorge-w)
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August 12, 2026 12:50
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Part 8 of 9 of a stacked series that reworks the DPDK SRIOV hot plug tests. Stacked on #4660, review only the last commit. This adds a single new C source file and changes no Python.
Hot plug tests need to know exactly when the kernel adds or removes a VF, its uverbs node, its ib device and its netdev. DPDK's own
rte_dev_event_monitoronly parses pci, uio and vfio events that carryPCI_SLOT_NAME, so it drops every vmbus, net and infiniband uevent that matters on Azure.This helper listens on
NETLINK_KOBJECT_UEVENTdirectly and prints a tagged, single line per event that the tests can match on. It is consumed by the next PR in the stack.Key Test Cases:
verify_dpdk_sriov_rescind_failover_send_only
Impacted LISA Features:
Sriov, NetworkInterface
Tested Azure Marketplace Images:
canonical 0001-com-ubuntu-server-jammy 22_04-lts latest