There are currently two competing naming mechanisms for network cards, biosdevname and systemd. Systemd currently has some limitations on naming cards that use network partitioning or support SR-IOV. Proposal is to add support for biosdevname-like names as part of systemd. The names would be created as a new environment variable ID_NET_NAME_BIOSDEVNAME. This could then be used in the udev rules scripts to replace the external biosdevname handler.
At least on Dell systems, systemd generates unusable names (PCI B:D:F vs Slot#) for add-in cards as our PCIe slots do not have the ACPI _SUN method, but they do have a SMBIOS slot number.
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