You can try the uio_pci_generic, don’t use the VFIO-PCI driver. modprobe uio modprobe uio_pci_generic dpdk-devbind.py -b uio_pci_generic xxxx From: Nick Tian Sent: Monday, May 22, 2023 9:22 AM To: Nick Tian ; users@dpdk.org Cc: Isaac Gao ; Jason Liu Subject: 回复：No packet was send out successfully with EB-LINK intel I226 Is there someone know something about this? ----------------------------------------------------- No packet was sent out successfully with EB-LINK intel I226 ------------------原始邮件 ------------------ 发件人:Nick Tian > 发送时间:05/19/23 17:37:34 收件人:users@dpdk.org > 抄送:Isaac Gao >, Jason Liu > 主题:No packet was send out successfully with EB-LINK intel I226 Hi Community: There is a problem when I use dpdk-testpmd to execute io mode test. Issue description: No packet was sent out successfully. testpmd cmdline: dpdk-testpmd -l 1,2,3 -n 4 -- -i [cid:image001.png@01D98CD3.AAF91920] test mode setup:"set fwd io" then "start" [cid:image002.png@01D98CD3.AAF91920] Statistics: No packet was send out. [cid:image003.png@01D98CD3.AAF91920] Environment: ThinkCentre-E77+ubuntu22.04 64bit@kernel 5.11.0-27-generic + dpdk 22.11.1 + Intel I226 network adapter Network topology: connect port1 to port2 directly with network cable(No switch was involved). [cid:image004.png@01D98CD3.AAF91920] Hugepage: [cid:image005.png@01D98CD3.AAF91920] device bind: [cid:image006.png@01D98CD3.AAF91920]