1 .. SPDX-License-Identifier: BSD-3-Clause
2 Copyright(c) 2018 Marvell International Ltd.
3 Copyright(c) 2018 Semihalf.
6 MVNETA Poll Mode Driver
7 =======================
9 The MVNETA PMD (librte_pmd_mvneta) provides poll mode driver support
10 for the Marvell NETA 1/2.5 Gbps adapter.
12 Detailed information about SoCs that use PPv2 can be obtained here:
14 * https://www.marvell.com/embedded-processors/armada-3700/
18 Due to external dependencies, this driver is disabled by default. It must
19 be enabled manually by setting relevant configuration option manually.
20 Please refer to `Config File Options`_ section for further details.
26 Features of the MVNETA PMD are:
46 - Flushing vlans added for filtering is not possible due to MUSDK missing
47 functionality. Current workaround is to reset board so that NETA has a
48 chance to start in a sane state.
53 - Custom Linux Kernel sources
55 .. code-block:: console
57 git clone https://github.com/MarvellEmbeddedProcessors/linux-marvell.git -b linux-4.4.120-armada-18.09
60 - MUSDK (Marvell User-Space SDK) sources
62 .. code-block:: console
64 git clone https://github.com/MarvellEmbeddedProcessors/musdk-marvell.git -b musdk-armada-18.09
66 MUSDK is a light-weight library that provides direct access to Marvell's
67 NETA. Alternatively prebuilt MUSDK library can be
68 requested from `Marvell Extranet <https://extranet.marvell.com>`_. Once
69 approval has been granted, library can be found by typing ``musdk`` in
72 MUSDK must be configured with the following features:
74 .. code-block:: console
76 --enable-pp2=no --enable-neta
80 Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup
83 Pre-Installation Configuration
84 ------------------------------
89 The following options can be modified in the ``config`` file.
91 - ``CONFIG_RTE_LIBRTE_MVNETA_PMD`` (default ``n``)
93 Toggle compilation of the librte_pmd_mvneta driver.
98 The following ``devargs`` options can be enabled at runtime. They must
99 be passed as part of EAL arguments.
101 - ``iface`` (mandatory, with no default value)
103 The name of port (owned by MUSDK) that should be enabled in DPDK.
104 This options can be repeated resulting in a list of ports to be
105 enabled. For instance below will enable ``eth0`` and ``eth1`` ports.
107 .. code-block:: console
109 ./testpmd --vdev=net_mvneta,iface=eth0,iface=eth1 \
116 Driver needs precompiled MUSDK library during compilation.
118 .. code-block:: console
120 export CROSS_COMPILE=<toolchain>/bin/aarch64-linux-gnu-
122 ./configure --host=aarch64-linux-gnu --enable-pp2=no --enable-neta
125 MUSDK will be installed to `usr/local` under current directory.
126 For the detailed build instructions please consult ``doc/musdk_get_started.txt``.
128 Before the DPDK build process the environmental variable ``LIBMUSDK_PATH`` with
129 the path to the MUSDK installation directory needs to be exported.
131 .. code-block:: console
133 export LIBMUSDK_PATH=<musdk>/usr/local
134 export CROSS=aarch64-linux-gnu-
135 make config T=arm64-armv8a-linuxapp-gcc
136 sed -ri 's,(MVNETA_PMD=)n,\1y,' build/.config
142 MVNETA PMD requires extra out of tree kernel modules to function properly.
143 `musdk_uio` and `mv_neta_uio` sources are part of the MUSDK. Please consult
144 ``doc/musdk_get_started.txt`` for the detailed build instructions.
146 .. code-block:: console
149 insmod mv_neta_uio.ko
151 Additionally interfaces used by DPDK application need to be put up:
153 .. code-block:: console
158 In order to run testpmd example application following command can be used:
160 .. code-block:: console
162 ./testpmd --vdev=net_mvneta,iface=eth0,iface=eth1 -c 3 -- \
163 -i --p 3 -a --txd 256 --rxd 128 --rxq=1 --txq=1 --nb-cores=1
166 In order to run l2fwd example application following command can be used:
168 .. code-block:: console
170 ./l2fwd --vdev=net_mvneta,iface=eth0,iface=eth1 -c 3 -- -T 1 -p 3