1. NXP DPAA Eventdev Driver
The dpaa eventdev is an implementation of the eventdev API, that provides a wide range of the eventdev features. The eventdev relies on a dpaa based platform to perform event scheduling.
More information can be found at NXP Official Website.
The DPAA EVENTDEV implements many features in the eventdev API;
- Hardware based event scheduler
- 4 event ports
- 4 event queues
- Parallel flows
- Atomic flows
1.2. Supported DPAA SoCs
See NXP QorIQ DPAA Board Support Package for setup information
Currently supported by DPDK:
- NXP SDK 2.0+ or LSDK 18.09+
- Supported architectures: arm64 LE.
- Follow the DPDK Getting Started Guide for Linux to setup the basic DPDK environment.
1.4. Pre-Installation Configuration
1.4.1. Config File Options
The following options can be modified in the
Please note that enabling debugging options may affect system performance.
Toggle compilation of the
1.4.2. Driver Compilation
To compile the DPAA EVENTDEV PMD for Linux arm64 gcc target, run the
cd <DPDK-source-directory> make config T=arm64-dpaa-linux-gcc install
The dpaa eventdev is exposed as a vdev device which consists of a set of channels and queues. On EAL initialization, dpaa components will be probed and then vdev device can be created from the application code by
rte_vdev_init("event_dpaa1")from the application
--vdev="event_dpaa1"in the EAL options, which will call rte_vdev_init() internally
- Use dev arg option
disable_intr=1to disable the interrupt mode
- DPAA eventdev can not work with DPAA PUSH mode queues configured for ethdev. Please configure export DPAA_NUM_PUSH_QUEUES=0
1.6.1. Platform Requirement
DPAA drivers for DPDK can only work on NXP SoCs as listed in the
Supported DPAA SoCs.
1.6.2. Port-core Binding
DPAA EVENTDEV driver requires event port ‘x’ to be used on core ‘x’.