dpdk编译安装

环境：

Vmware Workstation 10

系统 - fedora22

kernel - 4.1.10-200.fc22.x86_64

gcc - 5.1.1 20150618 (Red Hat 5.1.1-4)

步骤（使用命令）：

1. tar xf dpdk

2. cd dpdk

3. make install T=x86_64-native-linuxapp-gcc（如果修改config文件，可以先make config T=x86_64-native-linuxapp-gcc，然后cd x86_64-native-linuxapp-gcc，vi .config后再make）

(第3步是遇到的错误，因为开了PMD_PCAP=y，所以会用到pcap库，需要yum install libpcap libpcap-devel)

（3. 如果使用tools/setup.sh，需要先设置环境变量，export RTE_SDK=`pwd`，export RTE_TARGET=x86_64-native-linuxapp-gcc）

4. 配置huge pages

sudo mkdir -p /mnt/huge

sudo mount -t hugetlbfs nodev /mnt/huge

sudo echo 128 > /sys/devices/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages

配置完成之后，可以cat /proc/meminfo，看到最后几行已经改变：

HugePages_Total:      128

HugePages_Free:       128

HugePages_Rsvd:        0

HugePages_Surp:        0

Hugepagesize:       2048 kB

5. 查看dev状态（是否已经绑定）

tools/dpdk_nic_bind.py --status

6. 绑定

./tools/dpdk_nic_bind.py --bind=igb_uio 接口名称or接口PCI号

（解除绑定）

./tools/dpdk_nic_bind.py --bind=e1000 接口名称or接口PCI号

（可能遇到的错误：Routing table indicates that interface 0000:02:01.0 is active. Not modifying，先down掉网口）

（注意绑定的驱动一定要正确，不然绑定不成功）

7. 在执行testpmd，或者helloworld示例的时候，会遇到类似以下错误：

EAL: Error reading from file descriptor 13: Input/output error

这个问题已经解决，需要打一个补丁。这个问题有人在dpdk的1.7和1.8版本就已经遇到了，现在2.1版本又遇到，不知道为什么没有在源码中进行修改
http://dpdk.org/dev/patchwork/patch/945/
再次运行testpmd：

[root@localhost app]# ./testpmd -c 3 -n 1

EAL: Detected lcore 0 as core 0 on socket 0

EAL: Detected lcore 1 as core 1 on socket 0

EAL: Support maximum 128 logical core(s) by configuration.

EAL: Detected 2 lcore(s)

EAL: VFIO modules not all loaded, skip VFIO support...

EAL: Setting up physically contiguous memory...

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7efc2a000000 (size = 0x200000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7efc29c00000 (size = 0x200000)

EAL: Ask a virtual area of 0x33600000 bytes

EAL: Virtual area found at 0x7efbf6400000 (size = 0x33600000)

EAL: Ask a virtual area of 0xfe00000 bytes

EAL: Virtual area found at 0x7efbe6400000 (size = 0xfe00000)

EAL: Ask a virtual area of 0x600000 bytes

EAL: Virtual area found at 0x7efbe5c00000 (size = 0x600000)

EAL: Ask a virtual area of 0x400000 bytes

EAL: Virtual area found at 0x7efbe5600000 (size = 0x400000)

EAL: Ask a virtual area of 0x800000 bytes

EAL: Virtual area found at 0x7efbe4c00000 (size = 0x800000)

EAL: Requesting 549 pages of size 2MB from socket 0

EAL: TSC frequency is ~3292429 KHz

EAL: Master lcore 0 is ready (tid=2c2b98c0;cpuset=[0])

EAL: lcore 1 is ready (tid=e4bff700;cpuset=[1])

EAL: PCI device 0000:02:01.0 on NUMA socket -1

EAL:   probe driver: 8086:100f rte_em_pmd

EAL:   Not managed by a supported kernel driver, skipped

EAL: PCI device 0000:02:05.0 on NUMA socket -1

EAL:   probe driver: 8086:100f rte_em_pmd

EAL:   PCI memory mapped at 0x7efc2a200000

EAL:   PCI memory mapped at 0x7efc2a220000

PMD: eth_em_dev_init(): port_id 0 vendorID=0x8086 deviceID=0x100f

EAL: PCI device 0000:02:06.0 on NUMA socket -1

EAL:   probe driver: 8086:100f rte_em_pmd

EAL:   PCI memory mapped at 0x7efc2a230000

EAL:   PCI memory mapped at 0x7efc2a250000

PMD: eth_em_dev_init(): port_id 1 vendorID=0x8086 deviceID=0x100f

Configuring Port 0 (socket 0)

PMD: eth_em_tx_queue_setup(): sw_ring=0x7efbe5717100 hw_ring=0x7efbe5719200 dma_addr=0x56919200

PMD: eth_em_rx_queue_setup(): sw_ring=0x7efbe5706bc0 hw_ring=0x7efbe57070c0 dma_addr=0x569070c0

PMD: eth_em_start(): <<

Port 0: 00:0C:29:DA:22:81

Configuring Port 1 (socket 0)

PMD: eth_em_tx_queue_setup(): sw_ring=0x7efbe56f4980 hw_ring=0x7efbe56f6a80 dma_addr=0x568f6a80

PMD: eth_em_rx_queue_setup(): sw_ring=0x7efbe56e4440 hw_ring=0x7efbe56e4940 dma_addr=0x568e4940

PMD: eth_em_start(): <<

Port 1: 00:0C:29:DA:22:8B

Checking link statuses...

Port 0 Link Up - speed 1000 Mbps - full-duplex

Port 1 Link Up - speed 1000 Mbps - full-duplex

Done

No commandline core given, start packet forwarding

  io packet forwarding - CRC stripping disabled - packets/burst=32

  nb forwarding cores=1 - nb forwarding ports=2

  RX queues=1 - RX desc=128 - RX free threshold=0

  RX threshold registers: pthresh=0 hthresh=0 wthresh=0

  TX queues=1 - TX desc=512 - TX free threshold=0

  TX threshold registers: pthresh=0 hthresh=0 wthresh=0

  TX RS bit threshold=0 - TXQ flags=0x0

Press enter to exit

因为只有两个core，所以都用来转发了，没有cp的控制core，只能退出了

Launching app

EAL: Detected lcore 0 as core 0 on socket 0

EAL: Detected lcore 1 as core 1 on socket 0

EAL: Support maximum 128 logical core(s) by configuration.

EAL: Detected 2 lcore(s)

EAL: VFIO modules not all loaded, skip VFIO support...

EAL: Setting up physically contiguous memory...

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7f9457c00000 (size = 0x200000)

EAL: Ask a virtual area of 0x1c00000 bytes

EAL: Virtual area found at 0x7f9455e00000 (size = 0x1c00000)

EAL: Ask a virtual area of 0x1e000000 bytes

EAL: Virtual area found at 0x7f9437c00000 (size = 0x1e000000)

EAL: Ask a virtual area of 0x200000 bytes

EAL: Virtual area found at 0x7f9437800000 (size = 0x200000)

EAL: Requesting 256 pages of size 2MB from socket 0

EAL: TSC frequency is ~3292428 KHz

EAL: Master lcore 0 is ready (tid=59bbd8c0;cpuset=[0])

EAL: lcore 1 is ready (tid=377ff700;cpuset=[1])

EAL: PCI device 0000:02:01.0 on NUMA socket -1

EAL:   probe driver: 8086:100f rte_em_pmd

EAL:   Not managed by a supported kernel driver, skipped

EAL: PCI device 0000:02:05.0 on NUMA socket -1

EAL:   probe driver: 8086:100f rte_em_pmd

EAL:   PCI memory mapped at 0x7f9457e00000

EAL:   PCI memory mapped at 0x7f9457e20000

PMD: eth_em_dev_init(): port_id 0 vendorID=0x8086 deviceID=0x100f

EAL: PCI device 0000:02:06.0 on NUMA socket -1

EAL:   probe driver: 8086:100f rte_em_pmd

EAL:   PCI memory mapped at 0x7f9457e30000

EAL:   PCI memory mapped at 0x7f9457e50000

PMD: eth_em_dev_init(): port_id 1 vendorID=0x8086 deviceID=0x100f

Interactive-mode selected

Configuring Port 0 (socket 0)

PMD: eth_em_tx_queue_setup(): sw_ring=0x7f94379a1200 hw_ring=0x7f94379a3300 dma_addr=0x557a3300

PMD: eth_em_rx_queue_setup(): sw_ring=0x7f9437990cc0 hw_ring=0x7f94379911c0 dma_addr=0x557911c0

PMD: eth_em_start(): <<

Port 0: 00:0C:29:DA:22:81

Configuring Port 1 (socket 0)

PMD: eth_em_tx_queue_setup(): sw_ring=0x7f943797ea80 hw_ring=0x7f9437980b80 dma_addr=0x55780b80

PMD: eth_em_rx_queue_setup(): sw_ring=0x7f943796e540 hw_ring=0x7f943796ea40 dma_addr=0x5576ea40

PMD: eth_em_start(): <<

Port 1: 00:0C:29:DA:22:8B

Checking link statuses...

Port 0 Link Up - speed 1000 Mbps - full-duplex

Port 1 Link Up - speed 1000 Mbps - full-duplex

Done

testpmd> start

  io packet forwarding - CRC stripping disabled - packets/burst=32

  nb forwarding cores=1 - nb forwarding ports=2

  RX queues=1 - RX desc=128 - RX free threshold=0

  RX threshold registers: pthresh=0 hthresh=0 wthr
4000
esh=0

  TX queues=1 - TX desc=512 - TX free threshold=0

  TX threshold registers: pthresh=0 hthresh=0 wthresh=0

  TX RS bit threshold=0 - TXQ flags=0x0

testpmd> stop

Telling cores to stop...

Waiting for lcores to finish...

  ---------------------- Forward statistics for port 0  ----------------------

  RX-packets: 874560         RX-dropped: 0             RX-total: 874560

  TX-packets: 874560         TX-dropped: 0             TX-total: 874560

  ----------------------------------------------------------------------------

  ---------------------- Forward statistics for port 1  ----------------------

  RX-packets: 874560         RX-dropped: 0             RX-total: 874560

  TX-packets: 874560         TX-dropped: 0             TX-total: 874560

  ----------------------------------------------------------------------------

  +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++

  RX-packets: 1749120        RX-dropped: 0             RX-total: 1749120

  TX-packets: 1749120        TX-dropped: 0             TX-total: 1749120

  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Done.

testpmd>