Bug 1454753

The feature will be available when the package is rebased with the upstream version containing it.

Plan to include OVS 2.9 in fast datapath for RHEL 7.5

Hi,

I'm a little unclear on what "fast datapath for RHEL 7.5" is, could you clarify.

Also, I'd like to point out that while not entirely complete (set-action support is missing) the patchset noted above was included in OvS v2.8.

We are going to rebase to 2.9.
It seems all you need will be part of 2.9 official release, otherwise please let us know.

Hi Flavio,

I confirm that at this time we believe that all we need is present in v2.9.

(In reply to Simon Horman from comment #5)
> Hi,
> 
> I'm a little unclear on what "fast datapath for RHEL 7.5" is, could you
> clarify.
> 
> Also, I'd like to point out that while not entirely complete (set-action
> support is missing) the patchset noted above was included in OvS v2.8.

Fast Datapath is a separate channel or repo for releasing OVS content to RH Openstack (RHOSP), Openshift (OCP) and RH virtualization (RHV)

Verified on openvswitch-2.9.0-3.el7fdp.x86_64

LOG-
[root@netqe14 /]# uname -r
3.10.0-858.el7.x86_64

[root@netqe14 ~]# change_firmware() {
>     APP=${1:-flower}
>     FWDIR=${2:-/lib/firmware/netronome/}
>     cd ${FWDIR}
>     for FW in *.nffw; do
>       if [ -L ${FW} ]; then
>         ln -sf ${APP}/${FW} ${FW}
>       fi
>     done
> }
[root@netqe14 ~]# 
[root@netqe14 ~]# change_firmware
[root@netqe14 netronome]# 
[root@netqe14 netronome]# cd
[root@netqe14 ~]# rmmod nfp; sleep 3; modprobe nfp
[root@netqe14 ~]# yum install -y http://download-node-02.eng.bos.redhat.com/brewroot/packages/openvswitch/2.9.0/3.el7fdp/x86_64/openvswitch-2.9.0-3.el7fdp.x86_64.rpm
.
.
[root@netqe14 ~]# systemctl start openvswitch
[root@netqe14 ~]# systemctl enable openvswitch
Created symlink from /etc/systemd/system/multi-user.target.wants/openvswitch.service to /usr/lib/systemd/system/openvswitch.service.
[root@netqe14 ~]# 
[root@netqe14 ~]# systemctl status openvswitch
● openvswitch.service - Open vSwitch
   Loaded: loaded (/usr/lib/systemd/system/openvswitch.service; enabled; vendor preset: disabled)
   Active: active (exited) since Tue 2018-03-06 11:12:38 EST; 12s ago
 Main PID: 11148 (code=exited, status=0/SUCCESS)

Mar 06 11:12:38 netqe14.knqe.lab.eng.bos.redhat.com systemd[1]: Starting Open vSwitch...
Mar 06 11:12:38 netqe14.knqe.lab.eng.bos.redhat.com systemd[1]: Started Open vSwitch.

[root@netqe14 ~]# echo 1 > /sys/bus/pci/devices/0000:$(lspci -d 19ee:4000 | cut -d ' ' -f 1)/sriov_numvfs
[root@netqe14 ~]# dmesg | grep nfp | grep Representor
[ 3419.453871] nfp 0000:82:00.0: nfp: Phys Port 0 Representor(eth1) created
[ 3419.461595] nfp 0000:82:00.0: nfp: Phys Port 4 Representor(eth2) created
[ 3419.469416] nfp 0000:82:00.0: nfp: PF0 Representor(eth3) created
[ 3744.862538] nfp 0000:82:00.0: nfp: VF0 Representor(eth1) created

[root@netqe14 ~]# pf=enp130s0np0
[root@netqe14 ~]# vfr=eth1
[root@netqe14 ~]# 
[root@netqe14 ~]# ovs-vsctl --if-exists del-br ovsbr0
[root@netqe14 ~]# ovs-vsctl add-br ovsbr0
[root@netqe14 ~]# ip link set ovsbr0 up
[root@netqe14 ~]# 
[root@netqe14 ~]# ovs-vsctl add-port ovsbr0 $pf
[root@netqe14 ~]# ovs-vsctl add-port ovsbr0 $vfr

[root@netqe14 ~]# ovs-vsctl set Open_vSwitch . other_config:hw-offload=true
[root@netqe14 ~]# ovs-vsctl get Open_vSwitch . other_config:hw-offload
"true"
[root@netqe14 ~]# ovs-ofctl add-flow ovsbr0 in_port=1,actions=output:2
[root@netqe14 ~]# ovs-ofctl add-flow ovsbr0 in_port=2,actions=output:1

[root@netqe14 /]# ovs-ofctl dump-flows ovsbr0
 cookie=0x0, duration=699.591s, table=0, n_packets=34, n_bytes=1578, in_port=enp130s0np0 actions=output:eth1
 cookie=0x0, duration=697.904s, table=0, n_packets=0, n_bytes=0, in_port=eth1 actions=output:enp130s0np0
 cookie=0x0, duration=1299.541s, table=0, n_packets=0, n_bytes=0, priority=0 actions=NORMAL

[root@netqe14 /]# ovs-dpctl dump-flows
in_port(2),eth_type(0x0806), packets:38, bytes:1748, used:0.390s, actions:3
[root@netqe14 /]# ovs-dpctl dump-flows type=offloaded
in_port(2),eth_type(0x0806), packets:42, bytes:1932, used:0.030s, actions:3
[root@netqe14 /]# ovs-dpctl dump-flows type=ovs

[root@netqe14 /]# tc -s filter show dev enp130s0np0 ingress
filter protocol arp pref 1 flower 
filter protocol arp pref 1 flower handle 0x1 
  eth_type arp
  not_in_hw
	action order 1: mirred (Egress Redirect to device eth1) stolen
 	index 1 ref 1 bind 1 installed 152 sec used 0 sec
 	Action statistics:
	Sent 5244 bytes 114 pkt (dropped 0, overlimits 0 requeues 0) 
	backlog 0b 0p requeues 0 
	cookie len 16 4d09eaad24492f6a

The openvwitch component is delivered through the fast datapath channel, it is not documented in release notes.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2018:0550