wenqicao / ix Goto Github PK

IX a protected dataplane operating system project from Stanford and EPFL. It provides event-driven applications with:

• low-latency (including at the tail)
• high-throughput
• efficient use of resources (to support workload consolidation and energy proportionality)

IX is licensed under an MIT-style license. See LICENSE.

IX requires Intel DPDK and a supported Intel NIC:

• Intel 82599
• Intel X520
• Intel X540

For more details, check the requirements page

There is currently no binary distribution of IX. You will therefore have to compile it from source. Additionally, you will need to fetch and compile the source dependencies:

1. fetch the dependencies:

   ./deps/fetch-deps.sh
   

2. build the dependecies:

   sudo chmod +r /boot/System.map-`uname -r`
   make -sj64 -C deps/dune
   make -sj64 -C deps/pcidma
   make -sj64 -C deps/dpdk config T=x86_64-native-linuxapp-gcc
   make -sj64 -C deps/dpdk
   
   

3. build IX:

   sudo apt-get install libconfig-dev libnuma-dev
   make -sj64
   

The resulting executable files are cp/ixcp.py for the IX control plane and dp/ix for the IX dataplane kernel.

4. Set up the environment:

   cp ix.conf.sample ix.conf
   # modify at least host_addr, gateway_addr, devices, and cpu
   sudo sh -c 'for i in /sys/devices/system/node/node*/hugepages/hugepages-2048kB/nr_hugepages; do echo 4096 > $i; done'
   sudo modprobe -r ixgbe
   sudo insmod deps/dune/kern/dune.ko
   sudo insmod deps/pcidma/pcidma.ko
   

5. run the IX TCP echo server and check that it works. Make sure that at least the "Device" field in ix.conf matches your network card PCI bus address (try lspci | grep -i eth and look for the virtual adapter):

sudo ./dp/ix -- ./apps/echoserver 4

Then, try from another Linux host:

echo 123 | nc -vv <IP> <PORT>

You should see the following output:

Connection to <IP> <PORT> port [tcp/*] succeeded!
123

IX is compatible with Virtual Functions on SR-IOV capable multiport network cards. The following instructions explain the process of deploying IX in your environment using VFs:

1. follow steps 1-3.

2. get your device PCI address then bring up one (or more) Virtual Function(s) on it:

   modprobe ixgbe
   PCI_DEVICE="$(basename "$(readlink "/sys/class/net/$IFACE/device")")"
   echo 1 > "/sys/bus/pci/devices/$PCI_DEVICE/sriov_numvfs"
   sudo ifconfig $VIRTUAL_IFACE up
   modprobe -r ixgbevf
   

   where $IFACE is the logical name assigned to your IX-compatible network device (e.g. eth3), and $VIRTUAL_IFACE is the logical name assigned to the VF. You can also get the PCI address of your device using lspci | grep -i eth. For a more detailed explanation, see the corresponding wiki page.

3. Try running IX on the newly created VF device. Make sure that the "Device" field in ix.conf matches your VF PCI address (try lspci | grep -i eth and look for the virtual adapter) :

   sudo ./dp/ix -- ./apps/echoserver 4
   

   Then, try from another host:

   echo 123 | nc -vv <IP> <PORT>
   

   NOTE : be aware that IX currently does not support running on more than 1 core when running on a Virtual Function.