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numam-dpdk/doc/guides/howto/lm_bond_virtio_sriov.rst
Robin Zhang fe2a571c70 net/i40e: remove i40evf 
The default VF driver for Intel 700 Series Ethernet Controller already
switch to iavf in DPDK 21.05. And i40evf is no need to maintain now,
so remove i40evf related code.

Signed-off-by: Robin Zhang <robinx.zhang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
2021-10-05 12:31:37 +02:00

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.. SPDX-License-Identifier: BSD-3-Clause
Copyright(c) 2016 Intel Corporation.
Live Migration of VM with SR-IOV VF
===================================
Overview
--------
It is not possible to migrate a Virtual Machine which has an SR-IOV Virtual Function (VF).
To get around this problem the bonding PMD is used.
The following sections show an example of how to do this.
Test Setup
----------
A bonded device is created in the VM.
The virtio and VF PMD's are added as slaves to the bonded device.
The VF is set as the primary slave of the bonded device.
A bridge must be set up on the Host connecting the tap device, which is the
backend of the Virtio device and the Physical Function (PF) device.
To test the Live Migration two servers with identical operating systems installed are used.
KVM and Qemu 2.3 is also required on the servers.
In this example, the servers have Niantic and or Fortville NIC's installed.
The NIC's on both servers are connected to a switch
which is also connected to the traffic generator.
The switch is configured to broadcast traffic on all the NIC ports.
A :ref:`Sample switch configuration <lm_bond_virtio_sriov_switch_conf>`
can be found in this section.
The host is running the Kernel PF driver (ixgbe or i40e).
The ip address of host_server_1 is 10.237.212.46
The ip address of host_server_2 is 10.237.212.131
.. _figure_lm_bond_virtio_sriov:
.. figure:: img/lm_bond_virtio_sriov.*
Live Migration steps
--------------------
The sample scripts mentioned in the steps below can be found in the
:ref:`Sample host scripts <lm_bond_virtio_sriov_host_scripts>` and
:ref:`Sample VM scripts <lm_bond_virtio_sriov_vm_scripts>` sections.
On host_server_1: Terminal 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. code-block:: console
cd /root/dpdk/host_scripts
./setup_vf_on_212_46.sh
For Fortville NIC
.. code-block:: console
./vm_virtio_vf_i40e_212_46.sh
For Niantic NIC
.. code-block:: console
./vm_virtio_vf_one_212_46.sh
On host_server_1: Terminal 2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. code-block:: console
cd /root/dpdk/host_scripts
./setup_bridge_on_212_46.sh
./connect_to_qemu_mon_on_host.sh
(qemu)
On host_server_1: Terminal 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**In VM on host_server_1:**
.. code-block:: console
cd /root/dpdk/vm_scripts
./setup_dpdk_in_vm.sh
./run_testpmd_bonding_in_vm.sh
testpmd> show port info all
The ``mac_addr`` command only works with kernel PF for Niantic
.. code-block:: console
testpmd> mac_addr add port 1 vf 0 AA:BB:CC:DD:EE:FF
The syntax of the ``testpmd`` command is:
Create bonded device (mode) (socket).
Mode 1 is active backup.
Virtio is port 0 (P0).
VF is port 1 (P1).
Bonding is port 2 (P2).
.. code-block:: console
testpmd> create bonded device 1 0
Created new bonded device net_bond_testpmd_0 on (port 2).
testpmd> add bonding slave 0 2
testpmd> add bonding slave 1 2
testpmd> show bonding config 2
The syntax of the ``testpmd`` command is:
set bonding primary (slave id) (port id)
Set primary to P1 before starting bonding port.
.. code-block:: console
testpmd> set bonding primary 1 2
testpmd> show bonding config 2
testpmd> port start 2
Port 2: 02:09:C0:68:99:A5
Checking link statuses...
Port 0 Link Up - speed 10000 Mbps - full-duplex
Port 1 Link Up - speed 10000 Mbps - full-duplex
Port 2 Link Up - speed 10000 Mbps - full-duplex
testpmd> show bonding config 2
Primary is now P1. There are 2 active slaves.
Use P2 only for forwarding.
.. code-block:: console
testpmd> set portlist 2
testpmd> show config fwd
testpmd> set fwd mac
testpmd> start
testpmd> show bonding config 2
Primary is now P1. There are 2 active slaves.
.. code-block:: console
testpmd> show port stats all
VF traffic is seen at P1 and P2.
.. code-block:: console
testpmd> clear port stats all
testpmd> set bonding primary 0 2
testpmd> remove bonding slave 1 2
testpmd> show bonding config 2
Primary is now P0. There is 1 active slave.
.. code-block:: console
testpmd> clear port stats all
testpmd> show port stats all
No VF traffic is seen at P0 and P2, VF MAC address still present.
.. code-block:: console
testpmd> port stop 1
testpmd> port close 1
Port close should remove VF MAC address, it does not remove perm_addr.
The ``mac_addr`` command only works with the kernel PF for Niantic.
.. code-block:: console
testpmd> mac_addr remove 1 AA:BB:CC:DD:EE:FF
testpmd> port detach 1
Port '0000:00:04.0' is detached. Now total ports is 2
testpmd> show port stats all
No VF traffic is seen at P0 and P2.
On host_server_1: Terminal 2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. code-block:: console
(qemu) device_del vf1
On host_server_1: Terminal 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**In VM on host_server_1:**
.. code-block:: console
testpmd> show bonding config 2
Primary is now P0. There is 1 active slave.
.. code-block:: console
testpmd> show port info all
testpmd> show port stats all
On host_server_2: Terminal 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. code-block:: console
cd /root/dpdk/host_scripts
./setup_vf_on_212_131.sh
./vm_virtio_one_migrate.sh
On host_server_2: Terminal 2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. code-block:: console
./setup_bridge_on_212_131.sh
./connect_to_qemu_mon_on_host.sh
(qemu) info status
VM status: paused (inmigrate)
(qemu)
On host_server_1: Terminal 2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Check that the switch is up before migrating.
.. code-block:: console
(qemu) migrate tcp:10.237.212.131:5555
(qemu) info status
VM status: paused (postmigrate)
For the Niantic NIC.
.. code-block:: console
(qemu) info migrate
capabilities: xbzrle: off rdma-pin-all: off auto-converge: off zero-blocks: off
Migration status: completed
total time: 11834 milliseconds
downtime: 18 milliseconds
setup: 3 milliseconds
transferred ram: 389137 kbytes
throughput: 269.49 mbps
remaining ram: 0 kbytes
total ram: 1590088 kbytes
duplicate: 301620 pages
skipped: 0 pages
normal: 96433 pages
normal bytes: 385732 kbytes
dirty sync count: 2
(qemu) quit
For the Fortville NIC.
.. code-block:: console
(qemu) info migrate
capabilities: xbzrle: off rdma-pin-all: off auto-converge: off zero-blocks: off
Migration status: completed
total time: 11619 milliseconds
downtime: 5 milliseconds
setup: 7 milliseconds
transferred ram: 379699 kbytes
throughput: 267.82 mbps
remaining ram: 0 kbytes
total ram: 1590088 kbytes
duplicate: 303985 pages
skipped: 0 pages
normal: 94073 pages
normal bytes: 376292 kbytes
dirty sync count: 2
(qemu) quit
On host_server_2: Terminal 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**In VM on host_server_2:**
Hit Enter key. This brings the user to the testpmd prompt.
.. code-block:: console
testpmd>
On host_server_2: Terminal 2
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. code-block:: console
(qemu) info status
VM status: running
For the Niantic NIC.
.. code-block:: console
(qemu) device_add pci-assign,host=06:10.0,id=vf1
For the Fortville NIC.
.. code-block:: console
(qemu) device_add pci-assign,host=03:02.0,id=vf1
On host_server_2: Terminal 1
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
**In VM on host_server_2:**
.. code-block:: console
testpmd> show port info all
testpmd> show port stats all
testpmd> show bonding config 2
testpmd> port attach 0000:00:04.0
Port 1 is attached.
Now total ports is 3
Done
testpmd> port start 1
The ``mac_addr`` command only works with the Kernel PF for Niantic.
.. code-block:: console
testpmd> mac_addr add port 1 vf 0 AA:BB:CC:DD:EE:FF
testpmd> show port stats all.
testpmd> show config fwd
testpmd> show bonding config 2
testpmd> add bonding slave 1 2
testpmd> set bonding primary 1 2
testpmd> show bonding config 2
testpmd> show port stats all
VF traffic is seen at P1 (VF) and P2 (Bonded device).
.. code-block:: console
testpmd> remove bonding slave 0 2
testpmd> show bonding config 2
testpmd> port stop 0
testpmd> port close 0
testpmd> port detach 0
Port '0000:00:03.0' is detached. Now total ports is 2
testpmd> show port info all
testpmd> show config fwd
testpmd> show port stats all
VF traffic is seen at P1 (VF) and P2 (Bonded device).
.. _lm_bond_virtio_sriov_host_scripts:
Sample host scripts
-------------------
setup_vf_on_212_46.sh
~~~~~~~~~~~~~~~~~~~~~
Set up Virtual Functions on host_server_1
.. code-block:: sh
#!/bin/sh
# This script is run on the host 10.237.212.46 to setup the VF
# set up Niantic VF
cat /sys/bus/pci/devices/0000\:09\:00.0/sriov_numvfs
echo 1 > /sys/bus/pci/devices/0000\:09\:00.0/sriov_numvfs
cat /sys/bus/pci/devices/0000\:09\:00.0/sriov_numvfs
rmmod ixgbevf
# set up Fortville VF
cat /sys/bus/pci/devices/0000\:02\:00.0/sriov_numvfs
echo 1 > /sys/bus/pci/devices/0000\:02\:00.0/sriov_numvfs
cat /sys/bus/pci/devices/0000\:02\:00.0/sriov_numvfs
rmmod iavf
vm_virtio_vf_one_212_46.sh
~~~~~~~~~~~~~~~~~~~~~~~~~~
Setup Virtual Machine on host_server_1
.. code-block:: sh
#!/bin/sh
# Path to KVM tool
KVM_PATH="/usr/bin/qemu-system-x86_64"
# Guest Disk image
DISK_IMG="/home/username/disk_image/virt1_sml.disk"
# Number of guest cpus
VCPUS_NR="4"
# Memory
MEM=1536
taskset -c 1-5 $KVM_PATH \
-enable-kvm \
-m $MEM \
-smp $VCPUS_NR \
-cpu host \
-name VM1 \
-no-reboot \
-net none \
-vnc none -nographic \
-hda $DISK_IMG \
-netdev type=tap,id=net1,script=no,downscript=no,ifname=tap1 \
-device virtio-net-pci,netdev=net1,mac=CC:BB:BB:BB:BB:BB \
-device pci-assign,host=09:10.0,id=vf1 \
-monitor telnet::3333,server,nowait
setup_bridge_on_212_46.sh
~~~~~~~~~~~~~~~~~~~~~~~~~
Setup bridge on host_server_1
.. code-block:: sh
#!/bin/sh
# This script is run on the host 10.237.212.46 to setup the bridge
# for the Tap device and the PF device.
# This enables traffic to go from the PF to the Tap to the Virtio PMD in the VM.
# ens3f0 is the Niantic NIC
# ens6f0 is the Fortville NIC
ifconfig ens3f0 down
ifconfig tap1 down
ifconfig ens6f0 down
ifconfig virbr0 down
brctl show virbr0
brctl addif virbr0 ens3f0
brctl addif virbr0 ens6f0
brctl addif virbr0 tap1
brctl show virbr0
ifconfig ens3f0 up
ifconfig tap1 up
ifconfig ens6f0 up
ifconfig virbr0 up
connect_to_qemu_mon_on_host.sh
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. code-block:: sh
#!/bin/sh
# This script is run on both hosts when the VM is up,
# to connect to the Qemu Monitor.
telnet 0 3333
setup_vf_on_212_131.sh
~~~~~~~~~~~~~~~~~~~~~~
Set up Virtual Functions on host_server_2
.. code-block:: sh
#!/bin/sh
# This script is run on the host 10.237.212.131 to setup the VF
# set up Niantic VF
cat /sys/bus/pci/devices/0000\:06\:00.0/sriov_numvfs
echo 1 > /sys/bus/pci/devices/0000\:06\:00.0/sriov_numvfs
cat /sys/bus/pci/devices/0000\:06\:00.0/sriov_numvfs
rmmod ixgbevf
# set up Fortville VF
cat /sys/bus/pci/devices/0000\:03\:00.0/sriov_numvfs
echo 1 > /sys/bus/pci/devices/0000\:03\:00.0/sriov_numvfs
cat /sys/bus/pci/devices/0000\:03\:00.0/sriov_numvfs
rmmod iavf
vm_virtio_one_migrate.sh
~~~~~~~~~~~~~~~~~~~~~~~~
Setup Virtual Machine on host_server_2
.. code-block:: sh
#!/bin/sh
# Start the VM on host_server_2 with the same parameters except without the VF
# parameters, as the VM on host_server_1, in migration-listen mode
# (-incoming tcp:0:5555)
# Path to KVM tool
KVM_PATH="/usr/bin/qemu-system-x86_64"
# Guest Disk image
DISK_IMG="/home/username/disk_image/virt1_sml.disk"
# Number of guest cpus
VCPUS_NR="4"
# Memory
MEM=1536
taskset -c 1-5 $KVM_PATH \
-enable-kvm \
-m $MEM \
-smp $VCPUS_NR \
-cpu host \
-name VM1 \
-no-reboot \
-net none \
-vnc none -nographic \
-hda $DISK_IMG \
-netdev type=tap,id=net1,script=no,downscript=no,ifname=tap1 \
-device virtio-net-pci,netdev=net1,mac=CC:BB:BB:BB:BB:BB \
-incoming tcp:0:5555 \
-monitor telnet::3333,server,nowait
setup_bridge_on_212_131.sh
~~~~~~~~~~~~~~~~~~~~~~~~~~
Setup bridge on host_server_2
.. code-block:: sh
#!/bin/sh
# This script is run on the host to setup the bridge
# for the Tap device and the PF device.
# This enables traffic to go from the PF to the Tap to the Virtio PMD in the VM.
# ens4f0 is the Niantic NIC
# ens5f0 is the Fortville NIC
ifconfig ens4f0 down
ifconfig tap1 down
ifconfig ens5f0 down
ifconfig virbr0 down
brctl show virbr0
brctl addif virbr0 ens4f0
brctl addif virbr0 ens5f0
brctl addif virbr0 tap1
brctl show virbr0
ifconfig ens4f0 up
ifconfig tap1 up
ifconfig ens5f0 up
ifconfig virbr0 up
.. _lm_bond_virtio_sriov_vm_scripts:
Sample VM scripts
-----------------
setup_dpdk_in_vm.sh
~~~~~~~~~~~~~~~~~~~
Set up DPDK in the Virtual Machine
.. code-block:: sh
#!/bin/sh
# this script matches the vm_virtio_vf_one script
# virtio port is 03
# vf port is 04
/root/dpdk/usertools/dpdk-hugepages.py --show
/root/dpdk/usertools/dpdk-hugepages.py --setup 2G
/root/dpdk/usertools/dpdk-hugepages.py --show
ifconfig -a
/root/dpdk/usertools/dpdk-devbind.py --status
rmmod virtio-pci ixgbevf
modprobe uio
insmod igb_uio.ko
/root/dpdk/usertools/dpdk-devbind.py -b igb_uio 0000:00:03.0
/root/dpdk/usertools/dpdk-devbind.py -b igb_uio 0000:00:04.0
/root/dpdk/usertools/dpdk-devbind.py --status
run_testpmd_bonding_in_vm.sh
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Run testpmd in the Virtual Machine.
.. code-block:: sh
#!/bin/sh
# Run testpmd in the VM
# The test system has 8 cpus (0-7), use cpus 2-7 for VM
# Use taskset -pc <core number> <thread_id>
# use for bonding of virtio and vf tests in VM
/root/dpdk/<build_dir>/app/dpdk-testpmd \
-l 0-3 -n 4 --socket-mem 350 -- --i --port-topology=chained
.. _lm_bond_virtio_sriov_switch_conf:
Sample switch configuration
---------------------------
The Intel switch is used to connect the traffic generator to the
NIC's on host_server_1 and host_server_2.
In order to run the switch configuration two console windows are required.
Log in as root in both windows.
TestPointShared, run_switch.sh and load /root/switch_config must be executed
in the sequence below.
On Switch: Terminal 1
~~~~~~~~~~~~~~~~~~~~~
run TestPointShared
.. code-block:: console
/usr/bin/TestPointShared
On Switch: Terminal 2
~~~~~~~~~~~~~~~~~~~~~
execute run_switch.sh
.. code-block:: console
/root/run_switch.sh
On Switch: Terminal 1
~~~~~~~~~~~~~~~~~~~~~
load switch configuration
.. code-block:: console
load /root/switch_config
Sample switch configuration script
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The ``/root/switch_config`` script:
.. code-block:: sh
# TestPoint History
show port 1,5,9,13,17,21,25
set port 1,5,9,13,17,21,25 up
show port 1,5,9,13,17,21,25
del acl 1
create acl 1
create acl-port-set
create acl-port-set
add port port-set 1 0
add port port-set 5,9,13,17,21,25 1
create acl-rule 1 1
add acl-rule condition 1 1 port-set 1
add acl-rule action 1 1 redirect 1
apply acl
create vlan 1000
add vlan port 1000 1,5,9,13,17,21,25
set vlan tagging 1000 1,5,9,13,17,21,25 tag
set switch config flood_ucast fwd
show port stats all 1,5,9,13,17,21,25
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