Mellanox mlx4_en driver not loading on boot-up

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

Environment


SUSE Linux Enterprise Server 11 Service Pack 1

Situation

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.

Resolution

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

Cause


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.

Disclaimer

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:03-Mar-2020
    • SUSE Linux Enterprise Server

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