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Cornelis Technical Documentation

5.3.5. Persist the SR-IOV Configuration (Recommended)

SR-IOV settings do not persist across reboots. To persist the configuration:

  1. Create a configuration file in /etc/modprobe.d/ to set the max_num_vfs module parameter.

    For example, create /etc/modprobe.d/hfi1_sriov.conf containing:

    options hfi1 max_num_vfs=7

  2. Configure a systemd unit or udev rule to write the desired value to sriov_numvfs at boot.