The MVNETA PMD (librte_pmd_mvneta) provides poll mode driver support for the Marvell NETA 1/2.5 Gbps adapter.
Detailed information about SoCs that use PPv2 can be obtained here:
Note
Due to external dependencies, this driver is disabled by default. It must be enabled manually by setting relevant configuration option manually. Please refer to Config File Options section for further details.
Features of the MVNETA PMD are:
Custom Linux Kernel sources
git clone https://github.com/MarvellEmbeddedProcessors/linux-marvell.git -b linux-4.4.120-armada-18.09
MUSDK (Marvell User-Space SDK) sources
git clone https://github.com/MarvellEmbeddedProcessors/musdk-marvell.git -b musdk-armada-18.09
MUSDK is a light-weight library that provides direct access to Marvell’s NETA. Alternatively prebuilt MUSDK library can be requested from Marvell Extranet. Once approval has been granted, library can be found by typing musdk in the search box.
MUSDK must be configured with the following features:
--enable-pp2=no --enable-neta
DPDK environment
Follow the DPDK Getting Started Guide for Linux to setup DPDK environment.
The following options can be modified in the config file.
CONFIG_RTE_LIBRTE_MVNETA_PMD (default n)
Toggle compilation of the librte_pmd_mvneta driver.
The following devargs options can be enabled at runtime. They must be passed as part of EAL arguments.
iface (mandatory, with no default value)
The name of port (owned by MUSDK) that should be enabled in DPDK. This options can be repeated resulting in a list of ports to be enabled. For instance below will enable eth0 and eth1 ports.
./testpmd --vdev=net_mvneta,iface=eth0,iface=eth1 \
-c 3 -- -i --p 3 -a
Driver needs precompiled MUSDK library during compilation.
export CROSS_COMPILE=<toolchain>/bin/aarch64-linux-gnu-
./bootstrap
./configure --host=aarch64-linux-gnu --enable-pp2=no --enable-neta
make install
MUSDK will be installed to usr/local under current directory. For the detailed build instructions please consult doc/musdk_get_started.txt.
Before the DPDK build process the environmental variable LIBMUSDK_PATH with the path to the MUSDK installation directory needs to be exported.
export LIBMUSDK_PATH=<musdk>/usr/local
export CROSS=aarch64-linux-gnu-
make config T=arm64-armv8a-linux-gcc
sed -ri 's,(MVNETA_PMD=)n,\1y,' build/.config
make
MVNETA PMD requires extra out of tree kernel modules to function properly. musdk_uio and mv_neta_uio sources are part of the MUSDK. Please consult doc/musdk_get_started.txt for the detailed build instructions.
insmod musdk_uio.ko
insmod mv_neta_uio.ko
Additionally interfaces used by DPDK application need to be put up:
ip link set eth0 up
ip link set eth1 up
In order to run testpmd example application following command can be used:
./testpmd --vdev=net_mvneta,iface=eth0,iface=eth1 -c 3 -- \
-i --p 3 -a --txd 256 --rxd 128 --rxq=1 --txq=1 --nb-cores=1
In order to run l2fwd example application following command can be used:
./l2fwd --vdev=net_mvneta,iface=eth0,iface=eth1 -c 3 -- -T 1 -p 3