Identifiers

You must know how to identify PCI functions within Linux® and on hardware interfaces.

Identifiers for the PCI function
On IBM Z, PCI functions are identified by general PCI identifiers, but also by identifiers that are specific to z/Architecture®.
Network interface names
As of Linux kernel 5.13 and with the udev rules of systemd 249, distributions can use predictable and persistent interface names for your RoCE Express PCI functions.

Parent topic: Introduction to RoCE Express