In reality, I dont have a problem allocating ethernet ports to the VM, but I have too many allocated, I need to pull two back.

I added a 4 port ethernet card and used the edit below so that the 4 ports would be handed to the V<'s for pfsense.  This was all great until I bought my new smart swithc and wanted to do some bonding for increased throughput - so I bought a new dual port ethernet card and plugged it in, but its code (8086:10c9) is the same as the original 4 port card - so now I have 6 ports for VM's and no better off.......  Is there anything I can do to 'change' these numbers so the host can keep the new two port nic ?

 

append vfio-pci.ids=8086:10c9 pcie_acs_override=multifunction initrd=/bzroot

 

IOMMU group 17:[1022:43c7] 03:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)

[8086:10c9] 04:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)

[8086:10c9] 04:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)

 

IOMMU group 18:[1022:43c7] 03:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)

[12d8:2304] 06:00.0 PCI bridge: Pericom Semiconductor PI7C9X2G304 EL/SL PCIe2 3-Port/4-Lane Packet Switch (rev 05)

[12d8:2304] 07:01.0 PCI bridge: Pericom Semiconductor PI7C9X2G304 EL/SL PCIe2 3-Port/4-Lane Packet Switch (rev 05)

[12d8:2304] 07:02.0 PCI bridge: Pericom Semiconductor PI7C9X2G304 EL/SL PCIe2 3-Port/4-Lane Packet Switch (rev 05)

[8086:10c9] 08:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)

[8086:10c9] 08:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)

[8086:10c9] 0a:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)

[8086:10c9] 0a:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01)

I found this topic after searching more ways :

 

 

 

I will review and play with that method of allocating PCI devices instead.