Public bug reported:
Problem Description
=============
The udev rules for renaming the SR-IOV Mellanox CX4 VF interface are not getting
implemented. After setting the udev rules, and unbind/bind the drivers for the
VF's,
the interface name still doesn't change. Same issue isn't noticed for the PF of
the
SR-IOV adapter.
Resolution
=======
Use static MAC addresses for renaming SRIOV Mellanox CX4 VF interfaces with
udev rules.
Documentation
==========
With Mellanox CX4 SR-IOV when the VFs are created, each of them will get a
random MAC address.
To be able to use the '70-persistent-net.rules' to define interfaces based on
MAC Address, one need
to set static MAC address to the VF.
This is an example
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="02:a9:bb:cc:dd:00", NAME="enP4p1s0vf"
First execute below command
echo 02:a9:bb:cc:dd:00 > /sys/class/infiniband/mlx5_0/device/sriov/0/mac
and then
do the unbind/bind
echo 0004:01:00.2 > /sys/bus/pci/drivers/mlx5_core/unbind
echo 0004:01:00.2 > /sys/bus/pci/drivers/mlx5_core/bind
then one can see
enP4p1s0vf: flags=4098<BROADCAST,MULTICAST> mtu 1500
ether 02:a9:bb:cc:dd:00 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
** Affects: ubuntu-docs (Ubuntu)
Importance: Undecided
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
Status: New
** Tags: architecture-ppc64le bugnameltc-153427 severity-low
targetmilestone-inin1710
** Tags added: architecture-ppc64le bugnameltc-153427 severity-low
targetmilestone-inin1710
** Changed in: ubuntu
Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage
(ubuntu-power-triage)
** Package changed: ubuntu => ubuntu-docs (Ubuntu)
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https://bugs.launchpad.net/bugs/1689616
Title:
[SR-IOV]: Use static MAC addresses with udev rules for renaming VF
interfaces (Mellanox CX4) (Documentation)
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