1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
.. SPDX-License-Identifier: BSD-3-Clause
Copyright(c) 2018 Marvell International Ltd.
Copyright(c) 2018 Semihalf.
All rights reserved.
MVNETA Poll Mode Driver
=======================
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:
* https://www.marvell.com/embedded-processors/armada-3700/
.. 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
--------
Features of the MVNETA PMD are:
- Start/stop
- tx/rx_queue_setup
- tx/rx_burst
- Speed capabilities
- Jumbo frame
- MTU update
- Promiscuous mode
- Unicast MAC filter
- Link status
- CRC offload
- L3 checksum offload
- L4 checksum offload
- Packet type parsing
- Basic stats
Limitations
-----------
- Flushing vlans added for filtering is not possible due to MUSDK missing
functionality. Current workaround is to reset board so that NETA has a
chance to start in a sane state.
Prerequisites
-------------
- Custom Linux Kernel sources
.. code-block:: console
git clone https://github.com/MarvellEmbeddedProcessors/linux-marvell.git -b linux-4.4.120-armada-18.09
- MUSDK (Marvell User-Space SDK) sources
.. code-block:: console
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 <https://extranet.marvell.com>`_. Once
approval has been granted, library can be found by typing ``musdk`` in
the search box.
MUSDK must be configured with the following features:
.. code-block:: console
--enable-pp2=no --enable-neta
- DPDK environment
Follow the DPDK :ref:`Getting Started Guide for Linux <linux_gsg>` to setup
DPDK environment.
Pre-Installation Configuration
------------------------------
Config File Options
~~~~~~~~~~~~~~~~~~~
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.
Runtime options
~~~~~~~~~~~~~~~
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.
.. code-block:: console
./testpmd --vdev=net_mvneta,iface=eth0,iface=eth1 \
-c 3 -- -i --p 3 -a
Building DPDK
-------------
Driver needs precompiled MUSDK library during compilation.
.. code-block:: console
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.
.. code-block:: console
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
Usage Example
-------------
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.
.. code-block:: console
insmod musdk_uio.ko
insmod mv_neta_uio.ko
Additionally interfaces used by DPDK application need to be put up:
.. code-block:: console
ip link set eth0 up
ip link set eth1 up
In order to run testpmd example application following command can be used:
.. code-block:: console
./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:
.. code-block:: console
./l2fwd --vdev=net_mvneta,iface=eth0,iface=eth1 -c 3 -- -T 1 -p 3
|
