Add support for the hw-offload option in dpdk

This change implement support for the hw-offload option in dpdk. This
parameter is already supported in non-dpdk deployment but is also valid
for dpdk deployment.

Change-Id: Ibd285bf73fa10e6e9cd338625662063dc9a1d753

manifests/dpdk.pp

@@ -29,6 +29,12 @@
 #   socket 1 and no allocation for socket 0, the value should be "0,1024"
 #   Defaults to undef.
 #
+# [*enable_hw_offload*]
+#   (optional) Configure OVS to use
+#   Hardware Offload. This feature is
+#   supported from ovs 2.8.0.
+#   Defaults to false.
+#
 # [*disable_emc*]
 #   (optional) Configure OVS to disable EMC.
 #   Defaults to false
@@ -56,6 +62,7 @@ class vswitch::dpdk (
   $package_ensure        = 'present',
   $pmd_core_list         = undef,
   $socket_mem            = undef,
+  $enable_hw_offload     = false,
   $disable_emc           = false,
   $vlan_limit            = $::os_service_default,
   $revalidator_cores     = undef,
@@ -101,6 +108,16 @@ class vswitch::dpdk (
     notify  => Vs_config['other_config:dpdk-init'],
   }
 
+  # lint:ignore:quoted_booleans
+  if $enable_hw_offload {
+    vs_config { 'other_config:hw-offload':
+      value  => 'true',
+      notify => Service['openvswitch'],
+      wait   => true,
+    }
+  }
+  # lint:endignore
+
   if $disable_emc {
     vs_config { 'other_config:emc-insert-inv-prob':
       value  => '0',

releasenotes/notes/dpdk-enable_hw_offload-5c83aeb19d459fc6.yaml

@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    The new ``vsiwtch::dpdk::enable_hw_offload`` parameter has been added. This
+    parameter can be used to enable or disable hardware offload when dpdk is
+    used.

spec/classes/vswitch_dpdk_spec.rb

@@ -27,6 +27,7 @@ describe 'vswitch::dpdk' do
         params.merge!(:socket_mem      => '')
         params.merge!(:memory_channels => '' )
         params.merge!(:pmd_core_list => '')
+        params.merge!(:enable_hw_offload => false)
         params.merge!(:disable_emc => false)
       end
       it 'configures dpdk options' do
@@ -45,6 +46,7 @@ describe 'vswitch::dpdk' do
         is_expected.to contain_vs_config('other_config:dpdk-extra').with(
           :value => nil, :wait => false,
         )
+        is_expected.to_not contain_vs_config('other_config:hw-offload')
         is_expected.to_not contain_vs_config('other_config:emc-insert-inv-prob')
         is_expected.to_not contain_vs_config('other_config:vlan-limit')
 
@@ -57,6 +59,7 @@ describe 'vswitch::dpdk' do
         params.merge!(:socket_mem      => '1024')
         params.merge!(:memory_channels => 2)
         params.merge!(:pmd_core_list => '22,23,24,25,66,67,68,69')
+        params.merge!(:enable_hw_offload => true)
         params.merge!(:disable_emc => true)
         params.merge!(:vlan_limit => 2)
       end
@@ -76,6 +79,9 @@ describe 'vswitch::dpdk' do
         is_expected.to contain_vs_config('other_config:dpdk-extra').with(
           :value => '-n 2', :wait => false,
         )
+        is_expected.to contain_vs_config('other_config:hw-offload').with(
+          :value  => 'true', :notify => 'Service[openvswitch]', :wait => true,
+        )
         is_expected.to contain_vs_config('other_config:emc-insert-inv-prob').with(
           :value  => '0', :notify => 'Service[openvswitch]', :wait => false,
         )