Hi, I use Intel NICs for PF and VF devices. VFs are assigned to virtual machines and PF is used on the Host. I have intel-iommu=on on GRUB which enables DMAR and IOMMU capabilities (checked via 'dmesg | grep -e IOMMU -e DMAR) and use DPDK for datapath acceleration.
Couple of clarifications I need in terms of vfio-pci driver usage (1) with intel-iommu=pt (Passthrough mode), PF device on host can bind to either igb_uio or vfio-pci driver and similarly VF devices assigned to each VM can bind to either igb_uio or vfio-pci driver via Qemu (2) with intel-iommu=on (IOMMU enabled), PF device on host must bind to vfio-pci driver and similarly VF devices assigned to each VM much bind to vfio-pci driver. When IOMMU is enabled, only vfio-pci should be used? Thanks, Ravi
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