• [6.12.0-rc3] ethernet controller SR-IOV not pass vfio-bind error check

    HYec

    By HYec

      • Minor
    Quote

    Upon boot, if all PCI devices specified in 'config/vfio-pci.cfg' file do not properly bind, VM Autostart is prevented. You may still start individual VMs. This is to prevent Unraid host crash if hardware PCI IDs changed because of a kernel update or physical hardware change. To restore VM autostart, examine '/var/log/vfio-pci-error' and remove offending PCI IDs from 'config/vfio-pci.cfg' file and reboot.

    FROM https://forums.unraid.net/bug-reports/prereleases/unraid-os-version-6120-rc3-available-r2349/

     

     

    I have a ethernet controller with SR-IOV capability. I passthrough VF to VMs to lower cpu usage.

    But 6.12 makes my VMs never auto start due to vfio-bind error. 

     

    Content of /boot/config/go 

    #!/bin/bash

# Enable SR-IOV for eth
echo 1 > /sys/bus/pci/devices/0000:02:00.0/sriov_numvfs

# Start the Management Utility
/usr/local/sbin/emhttp &

     

    Content of /boot/config/vfio-pci.cfg 

    BIND=0000:02:10.0|8086:1520

     

    vfio-pci logs: 

    # cat /var/log/vfio-pci
Loading config from /boot/config/vfio-pci.cfg
BIND=0000:02:10.0|8086:1520
---
Processing 0000:02:10.0 8086:1520
---
Devices listed in /sys/bus/pci/drivers/vfio-pci:
vfio-pci binding complete

# cat /var/log/vfio-pci-errors
Error: Device 0000:02:10.0 does not exist, unable to bind device

     

    In addition, I find vfio-pci.cfg is processed in "/etc/rc.d/rc.S". Maybe I need to write value to sriov_numvfs before rc.S to make it pass the check.

    I don't know where to write my scripts.

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