Hi Yichen: Thank you very much. Follow you advice, I checked my target server(dell) and found that VT-d be enabled default. Modify grub to add “iommu=pt intel_iommu=on", then it seems ok! [root@localhost ~]# dmesg | grep Virtualization [ 1.432242] DMAR: Intel(R) Virtualization Technology for Directed I/O
So I can use "uio-driver vfio-pci" in dpdk segment in startup.conf. [root@localhost ~]# dmesg ................... [ 150.035349] VFIO - User Level meta-driver version: 0.3 [ 263.846184] i40e 0000:3b:00.0: removed PHC from p1p1 [ 264.064314] i40e 0000:3b:00.1: removed PHC from p1p2 [ 264.452385] *vfio-pci 0000:3b:00.0: Masking broken INTx support* [ 264.452513] *vfio_ecap_init: 0000:3b:00.0 hiding ecap 0x19@0x1d0* [ 264.616957] *vfio-pci 0000:3b:00.0: irq 74 for MSI/MSI-X* [ 264.724741] *vfio-pci 0000:3b:00.1: Masking broken INTx support* [ 264.888859] *vfio-pci 0000:3b:00.1: irq 75 for MSI/MSI-X* ** ** I will do performance test or other related tests later to find if there are any other problems. Regards, Gencli
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