Multi Channel DMA Intel® FPGA IP for PCI Express Design Example User Guide

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ID 683517
Date 8/24/2022
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Document Table of Contents
Document Table of Contents x
1. Introduction 2. Design Example Detailed Description 3. Design Example Quick Start Guide 4. Multi Channel DMA Intel FPGA IP for PCI Express Design Example User Guide Archives 5. Revision History for the Multi Channel DMA Intel FPGA IP for PCI Express Design Example User Guide
1. Introduction x
1.1. Terms and Acronyms 1.2. MCDMA IP Modes
2. Design Example Detailed Description x
2.1. Design Example Overview 2.2. Hardware and Software Requirements 2.3. PIO Using MCDMA Bypass Mode 2.4. Avalon-ST Packet Generate/Check 2.5. Avalon-ST Device-side Packet Loopback 2.6. Avalon-MM DMA 2.7. BAM_BAS Traffic Generator and Checker 2.8. External Descriptor Controller
2.1. Design Example Overview x
2.1.1. MCDMA H-Tile Design Examples for Endpoint 2.1.2. MCDMA P-Tile Design Examples for Endpoint 2.1.3. MCDMA F-Tile Design Examples for Endpoint
2.3. PIO Using MCDMA Bypass Mode x
2.3.1. Avalon-ST PIO Using MCDMA Bypass Mode 2.3.2. Avalon-MM PIO Using MCDMA Bypass mode
2.3.1. Avalon-ST PIO Using MCDMA Bypass Mode x
2.3.1.1. Single-Port Avalon-ST PIO Using MCDMA Bypass Mode
2.3.2. Avalon-MM PIO Using MCDMA Bypass mode x
2.3.2.1. Simulation Results 2.3.2.2. Hardware Test Results
2.4. Avalon-ST Packet Generate/Check x
2.4.1. Single-Port Avalon-ST Packet Generate/Check
2.4.1. Single-Port Avalon-ST Packet Generate/Check x
2.4.1.1. Simulation Waveforms 2.4.1.2. Simulation Log 2.4.1.3. Hardware Test Result
2.5. Avalon-ST Device-side Packet Loopback x
2.5.1. Simulation Results 2.5.2. Hardware Test Results
2.6. Avalon-MM DMA x
2.6.1. Simulation Results 2.6.2. Hardware Test Results
2.7. BAM_BAS Traffic Generator and Checker x
2.7.1. BAM_BAS Traffic Generator and Checker Example Design Register Map
2.8. External Descriptor Controller x
2.8.1. Registers 2.8.2. Hardware Test Results
2.8.1. Registers x
2.8.1.1. GCSR Registers (Base address 64’h00000) 2.8.1.2. QCSR Registers(Base address 64’h10000)
3. Design Example Quick Start Guide x
3.1. Design Example Directory Structure 3.2. Generating the Example Design using Intel® Quartus® Prime 3.3. Simulating the Design Example 3.4. Compiling the Example Design in Intel® Quartus® Prime 3.5. Running the Design Example Application on a Hardware Setup
3.2. Generating the Example Design using Intel® Quartus® Prime x
3.2.1. Procedure
3.3. Simulating the Design Example x
3.3.1. Testbench Overview 3.3.2. Supported Simulators 3.3.3. Example Testbench Flow for DMA Test with Avalon-ST Packet Generate/Check Design Example 3.3.4. Run the Simulation Script 3.3.5. View the Results
3.5. Running the Design Example Application on a Hardware Setup x
3.5.1. Program the FPGA 3.5.2. Quick Start Guide
3.5.2. Quick Start Guide x
3.5.2.1. Software Test Setup 3.5.2.2. Driver Support 3.5.2.3. MCDMA Custom Driver 3.5.2.4. MCDMA DPDK Poll Mode Driver 3.5.2.5. MCDMA Kernel Mode Character Device Driver 3.5.2.6. MCDMA Kernel Mode Network Device Driver
3.5.2.3. MCDMA Custom Driver x
3.5.2.3.1. Prerequisites 3.5.2.3.2. Software Setup 3.5.2.3.3. Run the Reference Example Application 3.5.2.3.4. Testing Bitstream Configuration beyond 256 Channels 3.5.2.3.5. External Descriptor Mode Verification
3.5.2.3.1. Prerequisites x
3.5.2.3.1.1. Configuration Changes from BIOS 3.5.2.3.1.2. External Packages 3.5.2.3.1.3. Set the Boot Parameters
3.5.2.3.2. Software Setup x
3.5.2.3.2.1. Installing the Linux Kernel Driver 3.5.2.3.2.2. Build and Install User Space Library 3.5.2.3.2.3. Enabling VFs and Create Guest VM by Using QEMU 3.5.2.3.2.4. Establish Communication Between Host and QEMU
3.5.2.3.3. Run the Reference Example Application x
3.5.2.3.3.1. Meta Data Test 3.5.2.3.3.2. BAM Test 3.5.2.3.3.3. BAS Test 3.5.2.3.3.4. Packet Gen Test
3.5.2.4. MCDMA DPDK Poll Mode Driver x
3.5.2.4.1. Prerequisites 3.5.2.4.2. Install PMD and Test Application 3.5.2.4.3. Run the Reference Example Application
3.5.2.4.1. Prerequisites x
3.5.2.4.1.1. Set the Boot Parameters 3.5.2.4.1.2. Configuration Changes from BIOS 3.5.2.4.1.3. Install and Build Testpmd
3.5.2.4.2. Install PMD and Test Application x
3.5.2.4.2.1. Create VM Environment
3.5.2.4.3. Run the Reference Example Application x
3.5.2.4.3.1. Example of Verifying on an AVMM Design 3.5.2.4.3.2. BAM Test 3.5.2.4.3.3. BAS Test
3.5.2.5. MCDMA Kernel Mode Character Device Driver x
3.5.2.5.1. Prerequisites 3.5.2.5.2. Software Setup 3.5.2.5.3. Examples
3.5.2.5.1. Prerequisites x
3.5.2.5.1.1. Host Configuration 3.5.2.5.1.2. Set the Boot Parameters
3.5.2.5.2. Software Setup x
3.5.2.5.2.1. Build and Install Kernel Driver 3.5.2.5.2.2. Build and Install Libmcmem 3.5.2.5.2.3. Build Testapp 3.5.2.5.2.4. Configure Kernel Driver 3.5.2.5.2.5. Configure Libmcmem 3.5.2.5.2.6. Configure Testapp
3.5.2.6. MCDMA Kernel Mode Network Device Driver x
3.5.2.6.1. Build and Install Netdev Driver 3.5.2.6.2. Enable VFs if SRIOV is Supported 3.5.2.6.3. Configure the Number of Channels Supported on the Device 3.5.2.6.4. Configure the MTU Value 3.5.2.6.5. Configure the Device Communication 3.5.2.6.6. Configure Transmit Queue Selection Mechanism 3.5.2.6.7. Test Procedure by Using Name Space Environment 3.5.2.6.8. PIO Test
3.5.2.6.6. Configure Transmit Queue Selection Mechanism x
3.5.2.6.6.1. MCDMA Queue Selection 3.5.2.6.6.2. Transmit Packet Steering (XPS) 3.5.2.6.6.3. Default
1. Introduction
2. Design Example Detailed Description
3. Design Example Quick Start Guide
4. Multi Channel DMA Intel FPGA IP for PCI Express Design Example User Guide Archives
5. Revision History for the Multi Channel DMA Intel FPGA IP for PCI Express Design Example User Guide

3.5.2.3.2.3. Enabling VFs and Create Guest VM by Using QEMU

Follow the steps below to create the guest environment and assign VF device to VM by using QEMU:
  1. Enable Virtual functions based on requirements:
    $ echo 2 > /sys/bus/pci/devices/<bdf>/max_vfs
  2. Install vfio-pci module

    $modprobe vfio-pci

  3. Bind the device to vfio-pci
    1. If the device is bound to ifc_uio, unbind with the following command:

      $ echo "<bdf>" > /sys/bus/pci/devices/<bdf>/driver/unbind

      E.g: echo "0000:01:00.0" > /sys/bus/pci/devices/0000\:01\:00.0/driver/unbind

    2. Bind the device to vfio-pci

      $ echo "<bdf>" > /sys/bus/pci/drivers/vfio-pci/bind

      E.g: echo "0000:01:00.1" > /sys/bus/pci/drivers/vfio-pci/bind

  4. Use following parameters to start the Guest VM (on Intel machines, use QEMU version 3.0.0-rc0). Here, a minimum of 8 GB of memory needs to be allocated to VM.

    $ qemu-3.0.0-rc0/x86_64-softmmu/qemu-system-x86_64 -smp 2 -m 8192M -boot c -machine q35,kernel-irqchip=split -cpu host -enable-kvm -nographic -L /root/qemu-3.0.0-rc0/pc-bios -name offload1 -hda <path_to_qcow2_file> -device vfio-pci,host=<bdf> -netdev type=tap,id=net6551,script=no,downscript=no,vhost=on,ifname=net6551 -device virtio-net-pci,netdev=net6551 -device intel-iommu,intremap=on,caching-mode=on -serial telnet::5551,server,nowait -object memory-backend-file,id=mem,size=8192M,mem-path=/dev/hugepages,share=on -numa node,memdev=mem -mem-prealloc -monitor telnet::3331,server,nowait&

Note:
  1. On AMD machines, the parameter “-device intel-iommu,intremap=on,caching-mode=on” is not required.
  2. If multiple devices are in the same group, check for ACS enablement in the root port and bridge.
  3. Below are the Host and Guest VM configurations used for verification.
Table 38.  Host System Configuration
Host System Configuration Details
Operating System CentOS Linux release 7.8
Linux Kernel 3.10.0-1127.10.1.el7.28.x86_64
CPU Cores 96
RAM 128 GB (64 GB on single NUMA)
Hypervisor KVM
QEMU Version QEMU version 3.0.0-rc0
Table 39.  Guest System Configuration
Host System Configuration Details
Operating System CentOS Linux release 7.8
Linux Kernel 3.10.0-1127.10.1.el7.28.x86_64
CPU Cores 2
RAM 8 GB
Level Two Title