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Mellanox mlx4_en driver not loading on boot-up

This document (7010836) is provided subject to the disclaimer at the end of this document.


SUSE Linux Enterprise Server 11 Service Pack 1


When using a Mellanox Ethernet card the mlx4_en driver is not being loaded on boot-up.
Once you load the mlx4_en driver (with "modprobe mlx4_en") then you can see the ethernet ports and they can be configured in yast.


Put the following line in /etc/modprobe.d/mlx4.conf  (You will need to create this file if it doesn't exist).  This entry should all be on one line.

install mlx4_core /sbin/modprobe --ignore-install mlx4_core && /sbin/modprobe mlx4_en


Additional Information

There was also an issue where if you had a dual ethernet interface on the same Mellanox card then only one port would be visible.  This is fixed in an updated SLES 11 SP1 hwinfo RPM.


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7010836
  • Creation Date: 26-Sep-2012
  • Modified Date:12-Oct-2022
    • SUSE Linux Enterprise Server

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