Intel 82575EB Gigabit Ethernet Controller last port not bind to VFIO-PCI

[Realterminator]

This problem occurs with Unraid 6.8.2 6.8.3 and 6.9-rc2

 

Binding...
0000:08:00.0 already bound to vfio-pci
/usr/local/sbin/vfio-pci: line 169: /sys/bus/pci/devices/0000:08:00.1/iommu_group/devices/0000:08:00.1/driver/unbind: Permission denied
Unbound 0000:08:00.1 from igb
Successfully bound the device 8086:10d6 at 0000:08:00.1 to vfio-pci

 

cat /boot/config/vfio-pci.cfg
BIND=0000:07:00.0|8086:10d6 0000:07:00.1|8086:10d6 0000:08:00.0|8086:10d6 0000:08:00.1|8086:10d6

 

07:00.0 Ethernet controller [0200]: Intel Corporation 82575GB Gigabit Network Connection [8086:10d6] (rev 02)
        Subsystem: Intel Corporation Gigabit VT Quad Port Server Adapter [8086:145a]
        Kernel driver in use: vfio-pci
        Kernel modules: igb
07:00.1 Ethernet controller [0200]: Intel Corporation 82575GB Gigabit Network Connection [8086:10d6] (rev 02)
        Subsystem: Intel Corporation Gigabit VT Quad Port Server Adapter [8086:145a]
        Kernel driver in use: vfio-pci
        Kernel modules: igb
08:00.0 Ethernet controller [0200]: Intel Corporation 82575GB Gigabit Network Connection [8086:10d6] (rev 02)
        Subsystem: Intel Corporation Gigabit VT Quad Port Server Adapter [8086:145a]
        Kernel driver in use: vfio-pci
        Kernel modules: igb
08:00.1 Ethernet controller [0200]: Intel Corporation 82575GB Gigabit Network Connection [8086:10d6] (rev 02)
        Subsystem: Intel Corporation Gigabit VT Quad Port Server Adapter [8086:145a]
        Kernel modules: igb
 

 

VIFO-PCI log:
 

Loading config from /boot/config/vfio-pci.cfg
BIND=0000:07:00.0|8086:10d6 0000:07:00.1|8086:10d6 0000:08:00.0|8086:10d6 0000:08:00.1|8086:10d6
---
Processing 0000:07:00.0 8086:10d6
Vendor:Device 8086:10d6 found at 0000:07:00.0

IOMMU group members (sans bridges):
/sys/bus/pci/devices/0000:07:00.0/iommu_group/devices/0000:07:00.0
/sys/bus/pci/devices/0000:07:00.0/iommu_group/devices/0000:07:00.1

Binding...
Successfully bound the device 8086:10d6 at 0000:07:00.0 to vfio-pci
---
Processing 0000:07:00.1 8086:10d6
Vendor:Device 8086:10d6 found at 0000:07:00.1

IOMMU group members (sans bridges):
/sys/bus/pci/devices/0000:07:00.1/iommu_group/devices/0000:07:00.0
/sys/bus/pci/devices/0000:07:00.1/iommu_group/devices/0000:07:00.1

Binding...
0000:07:00.0 already bound to vfio-pci
0000:07:00.1 already bound to vfio-pci
Successfully bound the device 8086:10d6 at 0000:07:00.1 to vfio-pci
---
Processing 0000:08:00.0 8086:10d6
Vendor:Device 8086:10d6 found at 0000:08:00.0

IOMMU group members (sans bridges):
/sys/bus/pci/devices/0000:08:00.0/iommu_group/devices/0000:08:00.0
/sys/bus/pci/devices/0000:08:00.0/iommu_group/devices/0000:08:00.1

Binding...
/usr/local/sbin/vfio-pci: line 169: /sys/bus/pci/devices/0000:08:00.0/iommu_group/devices/0000:08:00.1/driver/unbind: Permission denied
Unbound 0000:08:00.1 from igb
Successfully bound the device 8086:10d6 at 0000:08:00.0 to vfio-pci
---
Processing 0000:08:00.1 8086:10d6
Vendor:Device 8086:10d6 found at 0000:08:00.1

IOMMU group members (sans bridges):
/sys/bus/pci/devices/0000:08:00.1/iommu_group/devices/0000:08:00.0
/sys/bus/pci/devices/0000:08:00.1/iommu_group/devices/0000:08:00.1

Binding...
0000:08:00.0 already bound to vfio-pci
/usr/local/sbin/vfio-pci: line 169: /sys/bus/pci/devices/0000:08:00.1/iommu_group/devices/0000:08:00.1/driver/unbind: Permission denied
Unbound 0000:08:00.1 from igb
Successfully bound the device 8086:10d6 at 0000:08:00.1 to vfio-pci
---
vfio-pci binding complete

Devices listed in /sys/bus/pci/drivers/vfio-pci:
lrwxrwxrwx 1 root root 0 Feb 16 02:56 0000:07:00.0 -> ../../../../devices/pci0000:00/0000:00:01.2/0000:02:00.0/0000:03:02.0/0000:05:00.0/0000:06:02.0/0000:07:00.0
lrwxrwxrwx 1 root root 0 Feb 16 02:56 0000:07:00.1 -> ../../../../devices/pci0000:00/0000:00:01.2/0000:02:00.0/0000:03:02.0/0000:05:00.0/0000:06:02.0/0000:07:00.1
lrwxrwxrwx 1 root root 0 Feb 16 02:56 0000:08:00.0 -> ../../../../devices/pci0000:00/0000:00:01.2/0000:02:00.0/0000:03:02.0/0000:05:00.0/0000:06:04.0/0000:08:00.0

ls -l /dev/vfio/
total 0
crw------- 1 root root 249, 0 Feb 16 02:56 24
crw------- 1 root root 249, 1 Feb 16 02:56 25
crw-rw-rw- 1 root root 10, 196 Feb 16 02:56 vfio

 

Edited February 16, 2021 by Realterminator
Mark Error