** Description changed: + [Impact] + In Xenial/16.04LTS, one can't generate network interface name from "phys_port_name" attribute. + + "phys_port_name" indicates the interface physical port name within the + NIC. + + [Test Case] + + Check that udev (systemd-udevd) provides the phys_port_name property + Tests should be done on both kernel versions: v4.4 and v4.15 + + [Regression Potential] + + Risk: Low + * This piece of code is already in place in Bionic (systemd) and late. + AFAICT, nothing has been reported since then with regards to this feature. + + * phys_port_name kernel support has been introduced in v4.1. Xenial + supported kernel are : v4.4 and v4.15 (HWE). + + * If a regression arise, it will most likely be limited to the "Ethernet + switch device driver model (switchdev)" reported by: rocker, mlxsw, + broadcom, ... + + [Other informations] + https://github.com/systemd/systemd/commit/4887b656c22af059d4e833de7b56544f24951184 + https://github.com/systemd/systemd/pull/4506 + + [Original Description] + It has been brought to my attention that systemd in Xenial/16.04LTS doesn't have support for phys_port_name[0] attribute. The support has been first introduced in systemd version "232" via: https://github.com/systemd/systemd/commit/4887b656c22af059d4e833de7b56544f24951184 https://github.com/systemd/systemd/pull/4506 Bionic and late have the necessary bits ( systemd >232), but not Xenial (229)[1] Support for "phys_port_name" has been first introduced in the kernel with v4.1[2] [0] - https://www.kernel.org/doc/Documentation/ABI/testing/sysfs-class-net - https://www.freedesktop.org/software/systemd/man/systemd.net-naming-scheme.html - https://www.kernel.org/doc/Documentation/networking/switchdev.txt [1] # git systemd/systemd git describe --contains 4887b656c22af059d4e833de7b56544f24951184 v232~15 # rmadison => systemd | 229-4ubuntu21.27 | xenial-updates systemd | 237-3ubuntu10.39 | bionic-updates systemd | 240-6ubuntu5.8 | disco-updates systemd | 242-7ubuntu3.7 | eoan-updates systemd | 245.4-4ubuntu3 | focal systemd | 245.4-4ubuntu3 | groovy [2] https://github.com/torvalds/linux/commit/db24a9044ee1 $ git describe --contains db24a9044ee1 v4.1-rc1
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1875927 Title: add support for phys_port_name attribute in Xenial/16.04LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1875927/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
