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##odp4vpp:
#Introduction:
--------------
odp4vpp project aims to provide VPP with an additional vnet device based on OpenDataPlane (ODP is similar yet different from DPDK), with provisions for hardwareacceleration of packet paths. It envisions three deployment scenarios:
-Server + NICs
-Systems on a Chip
-SmartNIC with low to very high core count
#Build Procedure:
----------------
The source code add support to build VPP with either odp-linux or odp-dpdk.
1)Build vpp with odp-linux:
---------------------------
Build the odp linux package by compiling odp from odp git repository:
git clone https://git.linaro.org/lng/odp.git
Follow the README steps for complete build.
cd odp
./bootstrap
./configure --prefix= <odp-install-path>
make install
Set the environment variables with ODP config:
export PLATFORM=odp
export ODP_INST_PATH=<odp-install-path>
Build vpp:
Follow the README steps for complete build.
cd vpp
make install-dep
make build
make run
2)Build vpp with odp-dpdk:
--------------------------
Build the odp-dpdk package by compiling odp-dpdk from odp-dpdk git repository:
git clone https://git.linaro.org/lng/odp-dpdk.git
Follow the README.DPDK steps for complete build with dpdk.
cd odp-dpdk
./bootstrap
./configure --prefix= <odp-dpdk-install-path> --with-sdk-install-path=<dpdk-dir>/x86_64-native-linuxapp-gcc
make install
Set the environment variables with ODP config:
export PLATFORM=odp
export ODP_INST_PATH=<odp-dpdk-install-path>
Note : Also check and copy dpdk/odp-dpdk libraries to default /usr/lib path for linking with vpp.
Build vpp:
Follow the README steps for complete build.
cd vpp
make install-dep
make build
make run
#Test Steps:
------------
Below is a basic verification test.
Note :For odp-dpdk the port has to bound with dpdk driver prior to test and interface name is passed as 0,1..etc.
1)Configure odp packet interface with mode ie (0-burst,1-queue,2-schedule) default mode is 0.
-create pktio-interface name <int name> hw-addr <mac> mode <0/1/2>
-set int ip address odp-<int name> X.X.X.X/24
-set int state odp-<int name> up
2)Check the interface state:
-sh int
3)Ping the configured interface from host machine and check the ARP and ipv4 FIB table:
-sh ip arp
-sh ip fib
4)Check the interface counters:
-sh int
5)Check the statistics:
-show run
6)Packet trace can be enabled using :
-trace add odp-packet-input 10
-show trace
7)Delete the interface:
-delete pktio-interface name <int name>
Example:
--------
Below is example config logs:
with odp-linux:
DBGvpp# create pktio-interface name enp0s8 hw-addr 08:00:27:1b:5e:48
odp-enp0s8
DBGvpp# set int ip address odp-enp0s8 192.168.1.4/24
DBGvpp# set int state odp-enp0s8 up
DBGvpp# sh int
Name Idx State Counter Count
local0 0 down
odp-enp0s8 1 up rx packets 1
rx bytes 60
drops 1
DBGvpp# sh int addr
local0 (dn):
odp-enp0s8 (up):
192.168.1.4/24
DBGvpp# sh int
Name Idx State Counter Count
local0 0 down drops 1
odp-enp0s8 1 up rx packets 12
rx bytes 902
tx packets 5
tx bytes 324
drops 4
punts 3
ip4 7
DBGvpp# sh ip arp
Time IP4 Flags Ethernet Interface
171.7151 192.168.1.1 D c8:3a:35:19:ea:f0 odp-enp0s8
185.0099 192.168.1.3 D 48:45:20:11:41:ad odp-enp0s8
DBGvpp#
with odp-dpdk:
sreejith@sreejith-VirtualBox:~/vppdodp/vpp_odp_dpdk/dpdk$ sudo ./usertools/dpdk-devbind.py --status
Network devices using DPDK-compatible driver
============================================
0000:00:08.0 '82540EM Gigabit Ethernet Controller' drv=igb_uio unused=e1000
0000:00:09.0 '82540EM Gigabit Ethernet Controller' drv=igb_uio unused=e1000
DBGvpp# create pktio-interface name 0 hw-addr 08:00:27:1b:5e:48
odp-0
DBGvpp# sh int
Name Idx State Counter Count
local0 0 down
odp-0 1 down
DBGvpp# set int ip address odp-0 192.168.1.4/24
DBGvpp# set int state odp-0 up
DBGvpp# sh int
Name Idx State Counter Count
local0 0 down
odp-0 1 up rx packets 13
rx bytes 1960
tx packets 1
tx bytes 42
drops 13
ip4 7
ip6 4
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