DPDK: Data Plane Development Kit

Quick start

"A simple forwarding test with pcap PMD which works with any NIC (with performance penalties)"

Extract sources.

tar xf dpdk.tar.gz
cd dpdk

Enable pcap (libpcap headers are required).

make config T=x86_64-native-linuxapp-gcc
sed -ri 's,(PMD_PCAP=).*,\1y,' build/.config

Build libraries and test application (Linux headers may be needed with default config).

make

Reserve huge pages memory.

mkdir -p /mnt/huge
mount -t hugetlbfs nodev /mnt/huge
echo 64 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages

Run poll-mode driver test (with a cable between ports).

build/app/testpmd -c7 -n3 --vdev=eth_pcap0,iface=eth0 --vdev=eth_pcap1,iface=eth1 --
                  -i --nb-cores=2 --nb-ports=2 --total-num-mbufs=2048

testpmd> show port stats all

  ######################## NIC statistics for port 0  ########################
  RX-packets: 0          RX-errors: 0         RX-bytes: 0
  TX-packets: 0          TX-errors: 0         TX-bytes: 0
  ############################################################################

  ######################## NIC statistics for port 1  ########################
  RX-packets: 0          RX-errors: 0         RX-bytes: 0
  TX-packets: 0          TX-errors: 0         TX-bytes: 0
  ############################################################################

testpmd> start tx_first

testpmd> stop

  ---------------------- Forward statistics for port 0  ----------------------
  RX-packets: 2377688        RX-dropped: 0             RX-total: 2377688
  TX-packets: 2007009        TX-dropped: 0             TX-total: 2007009
  ----------------------------------------------------------------------------

  ---------------------- Forward statistics for port 1  ----------------------
  RX-packets: 2006977        RX-dropped: 0             RX-total: 2006977
  TX-packets: 2377720        TX-dropped: 0             TX-total: 2377720
  ----------------------------------------------------------------------------

  +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
  RX-packets: 4384665        RX-dropped: 0             RX-total: 4384665
  TX-packets: 4384729        TX-dropped: 0             TX-total: 4384729
  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++