From: fwefew 4t4tg <7532yahoo@gmail.com> To: users@dpdk.org Subject: dpdk-devbind.py fail on AWS c5n.metal instance running 'Amazon Linux 2 Kernel 5.10' Date: Fri, 17 Dec 2021 13:48:53 -0500 Message-ID: <CA+Tq66WSpUjs9NnUXieRr+WO_NY2_EnGf02hVvxqdH=fvQZr7g@mail.gmail.com> (raw) [-- Attachment #1: Type: text/plain, Size: 1054 bytes --] Using AWS I have, * c5n.metal instance * running 64-bit x86 Amazon Linux 2 AMI (HVM) - Kernel 5.10 ( ami-0ed9277fb7eb570c9) * DPDK 22.03-rc0 * I've installed the ena kernel fix in https://github.com/amzn/amzn-drivers/tree/master/userspace/dpdk/enav2-vfio-patch I add a second NIC to the instance in the normal way. This second NIC starts UP. So I bring the NIC down and bind it: * lspci | grep Eth 7e:00.0 Ethernet controller: Amazon.com, Inc. Elastic Network Adapter (ENA) 7f:00.0 Ethernet controller: Amazon.com, Inc. Elastic Network Adapter (ENA) * sudo ip link set eth1 down Then I bind: * sudo ./dpdk-devbind.py -b vfio-pci 7f:00.0 Error: bind failed for 0000:7f:00.0 - Cannot bind to driver vfio-pci: [Errno 19] No such device The error seems to arise from when attempting to close the file descriptor on /sys/bus/pci/drivers/vfio-pci/bind dpdk-devbind.py never shows the device bound to vfio: * sudo ./dpdk-devbind.py -s Other Network devices ===================== 0000:7f:00.0 'Elastic Network Adapter (ENA) ec20' unused=ena,vfio-pci [-- Attachment #2: Type: text/html, Size: 1557 bytes --]
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