Re: [ovs-dev] [PATCH] INSTALL.DPDK-ADVANCED: Add vhost multiqueue loopback testcase.

2016-08-09 Thread Daniele Di Proietto 
Applied to master, thanks

2016-07-28 5:48 GMT-07:00 Bhanuprakash Bodireddy <
bhanuprakash.bodire...@intel.com>:

> Add steps for loopback test using vhost-user configured with multiqueue
> doing packet forwarding in kernel.
>
> Signed-off-by: Bhanuprakash Bodireddy 
> ---
>  INSTALL.DPDK-ADVANCED.md | 86 ++
> ++
>  1 file changed, 86 insertions(+)
>
> diff --git a/INSTALL.DPDK-ADVANCED.md b/INSTALL.DPDK-ADVANCED.md
> index 9ae536d..63440d0 100644
> --- a/INSTALL.DPDK-ADVANCED.md
> +++ b/INSTALL.DPDK-ADVANCED.md
> @@ -372,6 +372,91 @@ For users wanting to do packet forwarding using
> kernel stack below are the steps
> where "-n 0" refers to ring '0' i.e dpdkr0
> ```
>
> +### 5.3 PHY-VM-PHY [VHOST MULTIQUEUE]
> +
> +  The steps (1-5) in 3.3 section of [INSTALL DPDK] guide will create &
> initialize DB,
> +  start vswitchd and add dpdk devices to bridge br0.
> +
> +  1. Configure PMD and RXQs. For example set no. of dpdk port rx queues
> to atleast 2.
> + The number of rx queues at vhost-user interface gets automatically
> configured after
> + virtio device connection and doesn't need manual configuration.
> +
> + ```
> + ovs-vsctl set Open_vSwitch . other_config:pmd-cpu-mask=c
> + ovs-vsctl set Interface dpdk0 options:n_rxq=2
> + ovs-vsctl set Interface dpdk1 options:n_rxq=2
> + ```
> +
> +  2. Instantiate Guest VM using Qemu cmdline
> +
> +   Guest Configuration
> +
> +   ```
> +   | configuration| values | comments
> +   |--||-
> +   | qemu version | 2.5.0  |
> +   | qemu thread affinity |2 cores | taskset 0x30
> +   | memory   | 4GB| -
> +   | cores| 2  | -
> +   | Qcow2 image  |Fedora22| -
> +   | multiqueue   |   on   | -
> +   ```
> +
> +   Instantiate Guest
> +
> +   ```
> +   export VM_NAME=vhost-vm
> +   export GUEST_MEM=4096M
> +   export QCOW2_IMAGE=/root/Fedora22_x86_64.qcow2
> +   export VHOST_SOCK_DIR=/usr/local/var/run/openvswitch
> +
> +   taskset 0x30 qemu-system-x86_64 -cpu host -smp 2,cores=2 -drive
> file=$QCOW2_IMAGE -m 4096M --enable-kvm -name $VM_NAME -nographic -object
> memory-backend-file,id=mem,size=$GUEST_MEM,mem-path=/dev/hugepages,share=on
> -numa node,memdev=mem -mem-prealloc -chardev 
> socket,id=char1,path=$VHOST_SOCK_DIR/dpdkvhostuser0
> -netdev type=vhost-user,id=mynet1,chardev=char1,vhostforce,queues=2
> -device virtio-net-pci,mac=00:00:00:00:00:01,netdev=mynet1,mq=on,vectors=6
> -chardev socket,id=char2,path=$VHOST_SOCK_DIR/dpdkvhostuser1 -netdev
> type=vhost-user,id=mynet2,chardev=char2,vhostforce,queues=2 -device
> virtio-net-pci,mac=00:00:00:00:00:02,netdev=mynet2,mq=on,vectors=6
> +   ```
> +
> +   Note: Queue value above should match the queues configured in OVS,
> The vector value
> +   should be set to 'no. of queues x 2 + 2'.
> +
> +  3. Guest interface configuration
> +
> + Assuming there are 2 interfaces in the guest named eth0, eth1 check
> the channel
> + configuration and set the number of combined channels to 2 for
> virtio devices.
> + More information can be found in [Vhost walkthrough] section.
> +
> +   ```
> +   ethtool -l eth0
> +   ethtool -L eth0 combined 2
> +   ethtool -L eth1 combined 2
> +   ```
> +
> +  4. Kernel Packet forwarding
> +
> + Configure IP and enable interfaces
> +
> + ```
> + ifconfig eth0 5.5.5.1/24 up
> + ifconfig eth1 90.90.90.1/24 up
> + ```
> +
> + Configure IP forwarding and add route entries
> +
> + ```
> + sysctl -w net.ipv4.ip_forward=1
> + sysctl -w net.ipv4.conf.all.rp_filter=0
> + sysctl -w net.ipv4.conf.eth0.rp_filter=0
> + sysctl -w net.ipv4.conf.eth1.rp_filter=0
> + ip route add 2.1.1.0/24 dev eth1
> + route add default gw 2.1.1.2 eth1
> + route add default gw 90.90.90.90 eth1
> + arp -s 90.90.90.90 DE:AD:BE:EF:CA:FE
> + arp -s 2.1.1.2 DE:AD:BE:EF:CA:FA
> + ```
> +
> + Check traffic on multiple queues
> +
> + ```
> + cat /proc/interrupts | grep virtio
> + ```
> +
>  ##  6. Vhost Walkthrough
>
>  DPDK 16.04 supports two types of vhost:
> @@ -848,5 +933,6 @@ Please report problems to b...@openvswitch.org.
>  [DPDK Docs]: http://dpdk.org/doc
>  [libvirt]: http://libvirt.org/formatdomain.html
>  [Guest VM using libvirt]: INSTALL.DPDK.md#ovstc
> +[Vhost walkthrough]: INSTALL.DPDK.md#vhost
>  [INSTALL DPDK]: INSTALL.DPDK.md#build
>  [INSTALL OVS]: INSTALL.DPDK.md#build
> --
> 2.4.11
>
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[ovs-dev] [PATCH] INSTALL.DPDK-ADVANCED: Add vhost multiqueue loopback testcase.

2016-07-28 Thread Bhanuprakash Bodireddy 
Add steps for loopback test using vhost-user configured with multiqueue
doing packet forwarding in kernel.

Signed-off-by: Bhanuprakash Bodireddy 
---
 INSTALL.DPDK-ADVANCED.md | 86 
 1 file changed, 86 insertions(+)

diff --git a/INSTALL.DPDK-ADVANCED.md b/INSTALL.DPDK-ADVANCED.md
index 9ae536d..63440d0 100644
--- a/INSTALL.DPDK-ADVANCED.md
+++ b/INSTALL.DPDK-ADVANCED.md
@@ -372,6 +372,91 @@ For users wanting to do packet forwarding using kernel 
stack below are the steps
where "-n 0" refers to ring '0' i.e dpdkr0
```
 
+### 5.3 PHY-VM-PHY [VHOST MULTIQUEUE]
+
+  The steps (1-5) in 3.3 section of [INSTALL DPDK] guide will create & 
initialize DB,
+  start vswitchd and add dpdk devices to bridge br0.
+
+  1. Configure PMD and RXQs. For example set no. of dpdk port rx queues to 
atleast 2.
+ The number of rx queues at vhost-user interface gets automatically 
configured after
+ virtio device connection and doesn't need manual configuration.
+
+ ```
+ ovs-vsctl set Open_vSwitch . other_config:pmd-cpu-mask=c
+ ovs-vsctl set Interface dpdk0 options:n_rxq=2
+ ovs-vsctl set Interface dpdk1 options:n_rxq=2
+ ```
+
+  2. Instantiate Guest VM using Qemu cmdline
+
+   Guest Configuration
+
+   ```
+   | configuration| values | comments
+   |--||-
+   | qemu version | 2.5.0  |
+   | qemu thread affinity |2 cores | taskset 0x30
+   | memory   | 4GB| -
+   | cores| 2  | -
+   | Qcow2 image  |Fedora22| -
+   | multiqueue   |   on   | -
+   ```
+
+   Instantiate Guest
+
+   ```
+   export VM_NAME=vhost-vm
+   export GUEST_MEM=4096M
+   export QCOW2_IMAGE=/root/Fedora22_x86_64.qcow2
+   export VHOST_SOCK_DIR=/usr/local/var/run/openvswitch
+
+   taskset 0x30 qemu-system-x86_64 -cpu host -smp 2,cores=2 -drive 
file=$QCOW2_IMAGE -m 4096M --enable-kvm -name $VM_NAME -nographic -object 
memory-backend-file,id=mem,size=$GUEST_MEM,mem-path=/dev/hugepages,share=on 
-numa node,memdev=mem -mem-prealloc -chardev 
socket,id=char1,path=$VHOST_SOCK_DIR/dpdkvhostuser0 -netdev 
type=vhost-user,id=mynet1,chardev=char1,vhostforce,queues=2 -device 
virtio-net-pci,mac=00:00:00:00:00:01,netdev=mynet1,mq=on,vectors=6 -chardev 
socket,id=char2,path=$VHOST_SOCK_DIR/dpdkvhostuser1 -netdev 
type=vhost-user,id=mynet2,chardev=char2,vhostforce,queues=2 -device 
virtio-net-pci,mac=00:00:00:00:00:02,netdev=mynet2,mq=on,vectors=6
+   ```
+
+   Note: Queue value above should match the queues configured in OVS, The 
vector value
+   should be set to 'no. of queues x 2 + 2'.
+
+  3. Guest interface configuration
+
+ Assuming there are 2 interfaces in the guest named eth0, eth1 check the 
channel
+ configuration and set the number of combined channels to 2 for virtio 
devices.
+ More information can be found in [Vhost walkthrough] section.
+
+   ```
+   ethtool -l eth0
+   ethtool -L eth0 combined 2
+   ethtool -L eth1 combined 2
+   ```
+
+  4. Kernel Packet forwarding
+
+ Configure IP and enable interfaces
+
+ ```
+ ifconfig eth0 5.5.5.1/24 up
+ ifconfig eth1 90.90.90.1/24 up
+ ```
+
+ Configure IP forwarding and add route entries
+
+ ```
+ sysctl -w net.ipv4.ip_forward=1
+ sysctl -w net.ipv4.conf.all.rp_filter=0
+ sysctl -w net.ipv4.conf.eth0.rp_filter=0
+ sysctl -w net.ipv4.conf.eth1.rp_filter=0
+ ip route add 2.1.1.0/24 dev eth1
+ route add default gw 2.1.1.2 eth1
+ route add default gw 90.90.90.90 eth1
+ arp -s 90.90.90.90 DE:AD:BE:EF:CA:FE
+ arp -s 2.1.1.2 DE:AD:BE:EF:CA:FA
+ ```
+
+ Check traffic on multiple queues
+
+ ```
+ cat /proc/interrupts | grep virtio
+ ```
+
 ##  6. Vhost Walkthrough
 
 DPDK 16.04 supports two types of vhost:
@@ -848,5 +933,6 @@ Please report problems to b...@openvswitch.org.
 [DPDK Docs]: http://dpdk.org/doc
 [libvirt]: http://libvirt.org/formatdomain.html
 [Guest VM using libvirt]: INSTALL.DPDK.md#ovstc
+[Vhost walkthrough]: INSTALL.DPDK.md#vhost
 [INSTALL DPDK]: INSTALL.DPDK.md#build
 [INSTALL OVS]: INSTALL.DPDK.md#build
-- 
2.4.11

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