Software/Driver Loading - Chelsio Communications Terminator Series Installation And User Manual

Chapter XXIV. DPDK Driver

Software/Driver Loading

UIO Support
Follow the steps mentioned below to load DPDK driver with UIO support:
i. Disable Intel iommu by adding below entry to kernel command line in grub/grub2 menu:
intel_iommu=off
ii. Reboot the system for changes to take effect.
iii. Load the UIO module:
[root@host~]# modprobe uio
[root@host~]# modprobe igb_uio
VFIO Support
Follow the steps mentioned below to load DPDK driver with VFIO support:
i. Enable Intel VT-d in system BIOS.
ii. Enable Intel iommu by adding the below entry to kernel command line in grub/grub2 menu:
intel_iommu=on vfio_iommu_type1.allow_unsafe_interrupts=1
E.g.:
kernel /vmlinuz-3.13.0-32-generic ro root=UUID=5149fae1-c52b-42a9-a48c-
b0a70937e8fb intel_iommu=on vfio_iommu_type1.allow_unsafe_interrupts=1
rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16
crashkernel=128M KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM rhgb quiet
iii. Reboot the system for changes to take effect.
iv. Load the VFIO module:
[root@host~]# modprobe vfio-pci
Chelsio Unified Wire for Linux 334