1. DPDK API and Virtual Infrastructure
Rashmin Patel

2. API Package Drivers for Virtual Machine Enhancements
Poll Mode Drivers (PMD) for Emulated, Para-virtual, HW Virtualized NIC interfaces
Drivers for Virtual Machine Monitor Enhancements
Poll Mode Drivers (PMD) for Multi Vendor NICs
Vhost Lib for Virtio Backend
API/HW to monitor/allocate platform resources
Intel® RDT – CMT, CAT, MBM
API/Driver for Crypto devices
Intel® QAT, AESNI

3. VMM / Hypervisor Support
* driver patch available

4. Examples using APIs DPDK
App Examples useful depending on the Platform SW Architecture
VM App with Physical Device
VM App with Virtual Device (SRIOV)
VM App with Emulated Device
VM App with Para-virtual Device
VM App with Shared Memory Device
VMM/Host App with Physical/ SRIOV-VF (for PV devices) and Backend (for EPS devices)
PV – All SRIOV/non-SRIOV PCI Function for real NIC (e.g. igb, ixgbe, i40e, fm10k, mlx4, mlx5,…)
EPS – All SW interfaces for virtual devices (e.g. Emulated e1000, Virtio, Vmxnet3, ENI…)
Bond
QoS Sched
Link Status Interrupt
L3fwd
Load Balancer
KNI
IPv4 Multicast
L2fwd Keep Alive
Packet Distrib
IP Pipeline
Hello World
Exception Path
L2fwd Jobstats
L2fwd IVSHMEM
Timer
IP Reass
VMDq DCB
PTP Client
Packet Ordering
CLI
DPDK
Multi Process
Ethtool
L3fwd VF
IP Frag
QoS Meter
L2fwd
Perf Thread
L2fwd Crypto
RxTx Callbacks
Quota & W’mark
Skeleton
TEP Term
Vhost
VM Power Manager
VMDq
L3fwd Power
L3fwd ACL
Netmap
Vhost Xen
QAT
L2fwd CAT
IPsec
Sec GW

5. Usage with HW Switch/Distributor
Single Root I/O Virtualization (SRIOV) enabled – Split NIC resources into equal portions
Each portion can be exposed to a VM in the form of a PCI Function for separate programming – Virtual Function (VF)
Global NIC resources, VEB and L2 Filters programmed by a special PCI Function – Physical Function (PF) in control of VMM/Host-OS
Virtual Function provides near Native I/O performance in VM using Intel® VT-d
Network Traffic sorted out to multiple VFs/VMs at the NIC-VEB in the first place

6. compatible with Containers/VMs
DPDK Virtualization Driver suite compatible with various compute instances from Containers to Clear Containers to VMs
Depending Public/Private deployment choices, various viable use-cases possible
SRIOV VF Devices as well as Virtio Devices support/ patches exist for developers to hack around a truly open source NFVi platform
Advanced NICs with various modes of filters available/ planned for advanced packet processing on IA

7. Usage with SW Switch/Distributor
Software Switch running in Host receives all the NICs’ traffic
Flow Table or Simple Filtering Rules programmed in SW for packet forwarding
Depending on the complexity and feature set support, the aggregate packet forwarding performance varies
Packets forwarded to VMs using various Emulated, Para-virtual or Shared memory devices available in mainstream Hypervisors and Emulators
For accelerated performance in VM, DPDK offers Poll Mode Drivers for the Virtual Interfaces available to VM
Network Traffic sorted out to multiple VIFs/VMs at the SW Switch/OVS in the first place

8. Questions..!? Sessions coming up…
OVS-DPDK as a usage of DPDK with SW Switch/Distributor
SRIOV-VF as a usage of DPDK with HW Switch/Distributor
DPDK Performance Analysis with VTune Amplifier
DPDK Performance Benchmarking
DPDK Hashing Algo. Support