l2fwd 测试
How to build and run the l2fwd application
1 Set the required environmental and the compilation target ①vi dpdk.rc
Writen as fallowing and save： export RTE_SDK=`pwd`
export RTE_TARGET=x86_64-default-linuxapp-gcc（或i686-default-linuxapp-gcc)
②#source dpdk.rc
2 Build the application
#make install T=x86_64-default-linuxapp-gcc(或i686-default-linuxapp-gcc) #make -C examples/l2fwd/
The compiled application will be located at: $RTE_SDK/examples/l2fwd/build/l2fwd
3 Configure hugepages #mkdir /mnt/huge
#mount -t hugetlbfs nodev /mnt/huge
#echo 102 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
4 insmod igb_uio.ko
#cd $RTE_SDK/ #modprobe uio
#cd x86_64-default-linuxapp-gcc(或i686-default-linuxapp-gcc) #insmod kmod/igb_uio.ko
5 Change pci dirver to uio
#cd $RTE_SDK/tools
#./pci_unbind.py --bind=igb_uio eth2 #./pci_unbind.py --bind=igb_uio eth3
Ps: I get 4 network interfaces in my machine
6 Run the application
#./testpmd -c 3 -n 2 -- -q 1 -p 0x3
Parameters:
-c : number of cup add 1
-n: number of memory channels to use
-b: blacklist a PCI devise to prevent EAL from using it. Multiple -b options are allowed.
7 send packet with tcpreplay
See the detail in document 《send_packets_with_tcpreplay.doc》