I have been trying to passthrough a NIC to my VMs. For some reason I cannot select the NIC interfaces under system devices as the check boxes are greyed out and state "in use by Unraid".

 

- The virtualization options are turned on.

- Configuration in syslinux.cfg "vfio-pci.ids=8086:125c"  or "pci-stub.ids=8086:125c"

- lspci -s 03:00.0 -vvv | grep Capabilities
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
        Capabilities: [70] MSI-X: Enable+ Count=5 Masked-
        Capabilities: [a0] Express (v2) Endpoint, MSI 00
        Capabilities: [100 v2] Advanced Error Reporting
        Capabilities: [140 v1] Device Serial Number a8-b8-e0-ff-ff-03-d8-a1
        Capabilities: [1c0 v1] Latency Tolerance Reporting
        Capabilities: [1f0 v1] Precision Time Measurement
        Capabilities: [1e0 v1] L1 PM Substates

     SR-IOV doesn't seem to be supported！！！

 

 

Hopefully the fellows who know about all this can give me some help.

 

 

Please post the diagnostics.
 

Thanks for the tip!

 

After some effort, the passthrough can now be set up,  but the VM with passthrough NIC won't start and will report this error “internal error: Unknown PCI header type ‘127’ for device ‘0000:03:00.0’”.

Here is the virtual machine configuration：

<?xml version='1.0' encoding='UTF-8'?>
<domain type='kvm'>
  <name>Linux</name>
  <uuid>30abee1c-47d7-18a9-f5f5-07c69370bcd5</uuid>
  <description>openwrt</description>
  <metadata>
    <vmtemplate xmlns="unraid" name="Linux" icon="linux.png" os="linux"/>
  </metadata>
  <memory unit='KiB'>524288</memory>
  <currentMemory unit='KiB'>524288</currentMemory>
  <memoryBacking>
    <nosharepages/>
  </memoryBacking>
  <vcpu placement='static'>20</vcpu>
  <cputune>
    <vcpupin vcpu='0' cpuset='0'/>
    <vcpupin vcpu='1' cpuset='1'/>
    <vcpupin vcpu='2' cpuset='2'/>
    <vcpupin vcpu='3' cpuset='3'/>
    <vcpupin vcpu='4' cpuset='4'/>
    <vcpupin vcpu='5' cpuset='5'/>
    <vcpupin vcpu='6' cpuset='6'/>
    <vcpupin vcpu='7' cpuset='7'/>
    <vcpupin vcpu='8' cpuset='8'/>
    <vcpupin vcpu='9' cpuset='9'/>
    <vcpupin vcpu='10' cpuset='10'/>
    <vcpupin vcpu='11' cpuset='11'/>
    <vcpupin vcpu='12' cpuset='12'/>
    <vcpupin vcpu='13' cpuset='13'/>
    <vcpupin vcpu='14' cpuset='14'/>
    <vcpupin vcpu='15' cpuset='15'/>
    <vcpupin vcpu='16' cpuset='16'/>
    <vcpupin vcpu='17' cpuset='17'/>
    <vcpupin vcpu='18' cpuset='18'/>
    <vcpupin vcpu='19' cpuset='19'/>
  </cputune>
  <os>
    <type arch='x86_64' machine='pc-q35-7.1'>hvm</type>
  </os>
  <features>
    <acpi/>
    <apic/>
  </features>
  <cpu mode='host-passthrough' check='none' migratable='on'>
    <topology sockets='1' dies='1' cores='10' threads='2'/>
    <cache mode='passthrough'/>
  </cpu>
  <clock offset='utc'>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/local/sbin/qemu</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='writeback'/>
      <source file='/mnt/user/domains/openwrt-23.05.3-x86-64-generic-squashfs-combined-efi.img'/>
      <target dev='hdc' bus='virtio'/>
      <serial>vdisk1</serial>
      <boot order='1'/>
      <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
    </disk>
    <controller type='pci' index='0' model='pcie-root'/>
    <controller type='pci' index='1' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='1' port='0x10'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0' multifunction='on'/>
    </controller>
    <controller type='pci' index='2' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='2' port='0x11'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x1'/>
    </controller>
    <controller type='pci' index='3' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='3' port='0x12'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x2'/>
    </controller>
    <controller type='pci' index='4' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='4' port='0x13'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x3'/>
    </controller>
    <controller type='pci' index='5' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='5' port='0x14'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x4'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
    </controller>
    <controller type='sata' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
    </controller>
    <controller type='usb' index='0' model='ich9-ehci1'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x7'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci1'>
      <master startport='0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0' multifunction='on'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci2'>
      <master startport='2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x1'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci3'>
      <master startport='4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x2'/>
    </controller>
    <interface type='bridge'>
      <mac address='a8:b8:e0:03:d8:a1'/>
      <source bridge='br0'/>
      <model type='virtio-net'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target type='isa-serial' port='0'>
        <model name='isa-serial'/>
      </target>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <channel type='unix'>
      <target type='virtio' name='org.qemu.guest_agent.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <input type='tablet' bus='usb'>
      <address type='usb' bus='0' port='1'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='vnc' port='-1' autoport='yes' websocket='-1' listen='0.0.0.0' keymap='en-us'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <audio id='1' type='none'/>
    <video>
      <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
    </video>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
      </source>
      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
    </hostdev>
    <memballoon model='none'/>
  </devices>
</domain>

 

Thanks again, guys.

bnas-diagnostics-20240603-0058.zip

Edited June 2, 20242 yr by ByronD

After troubleshooting and communicating with the motherboard manufacturer it was concluded that it was a firmware issue and the manufacturer is in the process of fixing it.

For your information. 😃