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31 SZEDATA2 poll mode driver library
32 =================================
34 The SZEDATA2 poll mode driver library implements support for the Netcope
35 FPGA Boards (**NFB-***), FPGA-based programmable NICs.
36 The SZEDATA2 PMD uses interface provided by the libsze2 library to communicate
37 with the NFB cards over the sze2 layer.
39 More information about the
40 `NFB cards <http://www.netcope.com/en/products/fpga-boards>`_
42 (`Netcope Development Kit <http://www.netcope.com/en/products/fpga-development-kit>`_)
43 can be found on the `Netcope Technologies website <http://www.netcope.com/>`_.
47 This driver has external dependencies.
48 Therefore it is disabled in default configuration files.
49 It can be enabled by setting ``CONFIG_RTE_LIBRTE_PMD_SZEDATA2=y``
54 Currently the driver is supported only on x86_64 architectures.
55 Only x86_64 versions of the external libraries are provided.
60 This PMD requires kernel modules which are responsible for initialization and
61 allocation of resources needed for sze2 layer function.
62 Communication between PMD and kernel modules is mediated by libsze2 library.
63 These kernel modules and library are not part of DPDK and must be installed
68 The library provides API for initialization of sze2 transfers, receiving and
69 transmitting data segments.
76 Kernel modules manage initialization of hardware, allocation and
77 sharing of resources for user space applications.
79 Information about getting the dependencies can be found `here
80 <http://www.netcope.com/en/company/community-support/dpdk-libsze2>`_.
85 These configuration options can be modified before compilation in the
88 * ``CONFIG_RTE_LIBRTE_PMD_SZEDATA2`` default value: **n**
90 Value **y** enables compilation of szedata2 PMD.
92 * ``CONFIG_RTE_LIBRTE_PMD_SZEDATA2_AS`` default value: **0**
94 This option defines type of firmware address space and must be set
95 according to the used card and mode.
96 Currently supported values are:
98 * **0** - for cards (modes):
102 * **1** - for cards (modes):
106 * **2** - for cards (modes):
112 * **3** - for cards (modes):
117 * **4** - for cards (modes):
121 * **5** - for experimental firmwares and future use
123 Using the SZEDATA2 PMD
124 ----------------------
126 From DPDK version 16.04 the type of SZEDATA2 PMD is changed to PMD_PDEV.
127 SZEDATA2 device is automatically recognized during EAL initialization.
128 No special command line options are needed.
130 Kernel modules have to be loaded before running the DPDK application.
135 Read packets from 0. and 1. receive channel and write them to 0. and 1.
138 .. code-block:: console
140 $RTE_TARGET/app/testpmd -l 0-3 -n 2 \
141 -- --port-topology=chained --rxq=2 --txq=2 --nb-cores=2 -i -a
145 .. code-block:: console
148 EAL: PCI device 0000:06:00.0 on NUMA socket -1
149 EAL: probe driver: 1b26:c1c1 rte_szedata2_pmd
150 PMD: Initializing szedata2 device (0000:06:00.0)
151 PMD: SZEDATA2 path: /dev/szedataII0
152 PMD: Available DMA channels RX: 8 TX: 8
153 PMD: resource0 phys_addr = 0xe8000000 len = 134217728 virt addr = 7f48f8000000
154 PMD: szedata2 device (0000:06:00.0) successfully initialized
155 Interactive-mode selected
157 Configuring Port 0 (socket 0)
158 Port 0: 00:11:17:00:00:00
159 Checking link statuses...
160 Port 0 Link Up - speed 10000 Mbps - full-duplex
162 Start automatic packet forwarding
163 io packet forwarding - CRC stripping disabled - packets/burst=32
164 nb forwarding cores=2 - nb forwarding ports=1
165 RX queues=2 - RX desc=128 - RX free threshold=0
166 RX threshold registers: pthresh=0 hthresh=0 wthresh=0
167 TX queues=2 - TX desc=512 - TX free threshold=0
168 TX threshold registers: pthresh=0 hthresh=0 wthresh=0
169 TX RS bit threshold=0 - TXQ flags=0x0