[Bug 1822585] Re: OSA/qeth inconsistent interface names

[Frank Heimes]

Please can you share the output of "lszdev qeth", too?

And is your system connected to a VLAN - means do you have a VLAN device
in your system?

Apr 12 06:05:45 s1lp15 kernel: qeth.e804c4: 0.0.c006: Priority Queueing not supported
Apr 12 06:05:45 s1lp15 kernel: qdio: 0.0.c008 OSA on SC bb4 using AI:1 QEBSM:0 PRI:1 TDD:1 SIGA: W AP
Apr 12 06:05:45 s1lp15 systemd-udevd[869]: Using default interface naming scheme 'v240'.
Apr 12 06:05:45 s1lp15 systemd-udevd[869]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
Apr 12 06:05:45 s1lp15 systemd-udevd[869]: Could not set Alias=, MACAddress= or MTU= on eth0: Resource temporarily unavailable
Apr 12 06:05:45 s1lp15 systemd-udevd[869]: eth0: Could not apply link config, ignoring: Resource temporarily unavailable
Apr 12 06:05:45 s1lp15 systemd-udevd[869]: Process 'vlan-network-interface UDEV' failed with exit code 1.
Apr 12 06:05:45 s1lp15 kernel: qeth.6adf49: 0.0.c006: The device represents a Bridge Capable Port
Apr 12 06:05:45 s1lp15 kernel: qeth.cc0c57: 0.0.c006: MAC address 9e:c3:44:57:ac:28 successfully registered on device eth0
Apr 12 06:05:45 s1lp15 kernel: qeth.26d434: 0.0.c006: Device is a OSD Express card (level: 0774)
                               with link type OSD_10GIG.
Apr 12 06:05:45 s1lp15 kernel: qeth.f02020: 0.0.c006: QDIO data connection isolation is deactivated
Apr 12 06:05:45 s1lp15 networkd-dispatcher[570]: WARNING:Unknown index 11 seen, reloading interface list
Apr 12 06:05:45 s1lp15 dnsmasq[809]: reading /etc/resolv.conf
Apr 12 06:05:45 s1lp15 dnsmasq[809]: using nameserver 127.0.0.53#53
Apr 12 06:05:45 s1lp15 sudo[864]: pam_unix(sudo:session): session closed for user root

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https://bugs.launchpad.net/bugs/1822585

Title:
  OSA/qeth inconsistent interface names

Status in Ubuntu on IBM z Systems:
  Confirmed
Status in s390-tools package in Ubuntu:
  New

Bug description:
  After doing an installation of an s390x system with disco where OSA
  devices are in use (means LPAR and z/VM) the device name of the
  default interface that is generated during the installation is file,
  for example:

  ubuntu at s1lp15:~$ lszdev qeth | grep yes
  qeth  0.0.c000:0.0.c001:0.0.c002  yes  yes   encc000

  If another device is created (e.g. with the help of: sudo chzdev -e
  c003), it name is no longer based on the address, but it get's an
  'eth?' name:

  ubuntu at s1lp15:~$ lszdev qeth | grep yes
  qeth  0.0.c000:0.0.c001:0.0.c002  yes  yes   encc000
  qeth  0.0.c003:0.0.c004:0.0.c005  yes  yes   eth0

  The coressponding 'ip a' line is:
  9: eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
  (02:29:22 PM) jfh:     link/ether 5a:2e:d8:c6:c1:03 brd ff:ff:ff:ff:ff:ff

  After a 'sudo systemctl restart systemd-udev-trigger.service' it get's the correct name 'encc003':
  9: encc003: <BROADCAST,MULTICAST>

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