dpdk编译

1、下载：http://core.dpdk.org/download/

2、编译：http://core.dpdk.org/doc/quick-start/

 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 -c1 -n3 --vdev=net_pcap0,iface=eth0  --vdev=net_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
  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Some sample applications can be tested after building them.

  make -C examples RTE_SDK=$(pwd) RTE_TARGET=build O=$(pwd)/build/examples

3、问题：

1）pcap.h not found! 解决办法：sudo apt-get install libpcap-de

2）hugepage设置失败

修改/etc/default/grub 中的 GRUB_CMDLINE_LINUX，然后运行 grub 更新并重启系统： //根据系统实际情况设置
default_hugepagesz=1G hugepagesz=1G hugepages=16 hugepagesz=2M hugepages=2048 iommu=pt intel_iommu=on isolcpus=1-13,15-27
grub2-mkconfig -o /boot/grub2/grub.cfg