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dpdk
Hezy Abudy
Hezy Abudy

Reputation: 51

Unable to bind intel NIC X710

I am trying to bind this nic I40E: Ethernet Controller X710 for 10GbE backplane 1581

my OS is ubuntu 18.04 kernel: 4.15.0-74-generic

I used dpdk-setup.sh to Insert VFIO module. i also add iommu=on to grub file.

running devbind command:

sudo ./dpdk-devbind.py -b vfio-pci 02:00.1

i Got this erros:

Error: bind failed for 0000:02:00.1 - Cannot bind to driver vfio-pci

dmesg output:

[ 5091.393436] vfio-pci: probe of 0000:02:00.1 failed with error -22

Upvotes: 3

Views: 6249

Answers (1)

Vipin Varghese
Vipin Varghese

Reputation: 4798

There is no issue in binding vfio-pci on Ethernet Controller X710. I have followed the following steps with success

  • DPDK version: dpdk-20.11
  • NIC: driverversion=2.1.14-k, firmware=6.01
  • modprobe vfio-pci
  • confirm via lsmod
  • bind with sudo ./usertools/dpdk-devbind.py -b vfio-pci [PCIe B:D:F]

[EDIT-1] as per DPDK documentation workaround for VT-d or iommu is suggested.

note:

  1. If VT-D is not enabled in BIOS and kernel command line (grub option), the work around is to use echo 1 > /sys/module/vfio/parameters/enable_unsafe_noiommu_mode, then follow the above steps.
  2. if the interface is already used in Kernel - Warning: routing table indicates that interface [PCIe B:D:F] is active. Not modifying. Simply disable the interface with ifconfig [interface name] down and bind again.

Upvotes: 6

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