Create Intel DSA Device Plugin CR

Create a CR via web console

  1. Go to Operator -> Installed Operators.

  2. Open Intel Device Plugins Operator.

  3. Navigate to tab Intel DSA Device Plugin.

  4. Click Create DSADevicePlugin -> set correct parameters -> Click Create

  5. Optional: If you want to make any customizations, select YAML view and edit the details. When you are done, click Create.

Verify via web console

  1. Verify CR by checking the status of Workloads -> DaemonSet -> intel-dsa-plugin.

  2. Now DsaDevicePlugin is created.

Create CR via CLI

Apply the CR yaml file:

$ oc apply -f https://raw.githubusercontent.com/intel/intel-technology-enabling-for-openshift/v1.4.0/device_plugins/dsa_device_plugin.yaml

Verify via CLI

Verify that the device plugin CR is ready:

$ oc get DsaDevicePlugin

Output:

NAME		        DESIRED		READY	NODE SELECTOR	                                    AGE
dsadeviceplugin-sample  3 	        3       {"intel.feature.node.kubernetes.io/dsa":"true"}     98m

Verify DSA Device Plugin

After the plugin is deployed, use below command to verify DSA resources:

$ oc describe node srf-2 | grep dsa.intel.com
  dsa.intel.com/wq-user-dedicated:  0
  dsa.intel.com/wq-user-shared:     160
  dsa.intel.com/wq-user-dedicated:  0
  dsa.intel.com/wq-user-shared:     160

DSA Resource Configuration

By default the DSA plugin uses this configuration file. The dsa init container comes with a utility called accel-config which takes file as input and configures the DSA hardwares based on that. The default configuration has creates dedicated WQs for each DSA device so that it’s four groups per device where each groups is with 1 WQ linked to 1 engine. Users can customise the config and can use the pre-customised config for their specific use case from here There’s also a possibility for a node specific configuration by passing a node specific profile via configMap volume mount. Users can use the steps below to customize the DSA resource configuration:

  1. Create the configmap for DSA resource configuration

    $ oc create configmap --namespace=openshift-operators intel-dsa-config --from-file=dsa[-$NODE_NAME].conf

  2. Create DSA device plugin CR with -provisioning-config set as the name of the ConfigMap (created in step 1) in the dsa_device_plugin.yaml file or set ConfigMap name in the provisioning-config option from web console.

Run Intel DSA based workloads on RHOCP

To run the Intel DSA based workloads as an unprivileged pod, you need to use a customised SCC. The customized dsa-scc Security Context Constraint (SCC) is provided to bind with service account and run the DSA based workload.

See Verify Intel DSA Provisioning for the detailed steps.