tests: add pciback suite for port kept in host on name mismatch - #1215
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Adds an evetestkit suite verifying that domainmgr keeps a network port in the host instead of reserving its PCI device to pciback when the controller's device model disagrees with the kernel about that port's PCI device. - TestPortKeptOnIfnameMismatch: the model's interface name for a port differs from the kernel-assigned name (e.g. enpNsN vs ethN); the NIC must be matched by PCI address and kept in the host. Passes on an EVE build with the domainmgr PCI-identity fix, fails against master without it. - TestPortKeptOnPhantomAdapterSamePci: a non-network device (audio) declared at the same PCI as an in-use network port must not be reserved to pciback. Documents current behavior (EVE keeps devices sharing a PCI controller in the host); a baseline to extend once EVE reports such device-model inconsistencies back to the controller. Signed-off-by: eriknordmark <erik@zededa.com> Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Closing: this pciback coverage is superseded by the equivalent test now implemented in eve's evetest framework, so maintaining a parallel eden suite is redundant. The underlying EVE fix is tracked in lf-edge/eve#6169. |
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Description
Adds an evetestkit suite (
tests/pciback) that verifies domainmgr keeps anetwork port in the host instead of reserving its PCI device to pciback when
the controller's device model gives the port an interface name that differs
from the kernel-assigned name (e.g.
enpNsNvsethN).The test resolves a port's PCI address from the running IoBundle, rewrites the
device model through the controller so that the port's model interface name no
longer matches the kernel, restarts EVE, and asserts the affected NIC stays
KeepInHostand out of pciback while the device remains reachable.It guards the EVE fix in lf-edge/eve#6169 (match device ports to their PCI
device, not just by interface name). Validated on the ZedVirtual-4G QEMU model:
IsPCIBack=true).How to run
Notes
eth0is left untouched so EVE stays reachable whileeth1is the subject ofthe mismatch.
tests/workflowCI scenario (the model mutation + noderestart cycle takes several minutes). Can add it to
networking.tests.txtifwanted.