Multi Channel DMA IP for PCI Express* Design Example User Guide
ID
683517
Date
8/04/2025
Public
3.5.1. Hardware Requirements
3.5.2. Software Requirements
3.5.3. Set Up the Hardware and Program the FPGA
3.5.4. Configuration Changes from BIOS
3.5.5. Installing the Required Kernel Version for Ubuntu v24.04
3.5.6. Set the Boot Parameters
3.5.7. MCDMA Custom Driver
3.5.8. MCDMA DPDK Poll Mode Driver
3.5.9. MCDMA Kernel Mode Network Device Driver
3.5.7.1.2. Enable Virtual Function
When the SR-IOV feature is enabled in the IP for the design example generation, the virtual functions can be enabled in the host system for the tests outlined in the subsequent sections, except for the External Descriptor Controller design example variant. You can bypass this step if you do not intend to test the virtual function (VF).
Here is the command to enable the VF for testing:
$echo <num_of_vfs> | sudo tee /sys/bus/pci/devices/<bdf>/sriov_numvfs
For example: Creating 4 VFs on the BDF of 0000:01:00.0 :
echo 4 | sudo tee /sys/bus/pci/devices/0000\:01\:00.0/sriov_numvfs