Fix: detaches the attached XDP/BPF program before af_xdp test run

[csit.git] / resources / libraries / python / InterfaceUtil.py

diff --git a/resources/libraries/python/InterfaceUtil.py b/resources/libraries/python/InterfaceUtil.py
index 03e0e69..2368ee3 100644 (file)
--- a/resources/libraries/python/InterfaceUtil.py
+++ b/resources/libraries/python/InterfaceUtil.py
@@ -294,6 +294,21 @@ class InterfaceUtil:
             cmd = f"ethtool --set-channels {pf_eth} {channel} {num_queues}"
             exec_cmd_no_error(node, cmd, sudo=True)
 
+    @staticmethod
+    def set_interface_xdp_off(node, pf_pcis):
+        """Detaches any currently attached XDP/BPF program from the specified
+        interfaces.
+
+        :param node: Topology node.
+        :param pf_pcis: List of node's interfaces PCI addresses.
+        :type nodes: dict
+        :type pf_pcis: list
+        """
+        for pf_pci in pf_pcis:
+            pf_eth = InterfaceUtil.pci_to_eth(node, pf_pci)
+            cmd = f"ip link set dev {pf_eth} xdp off"
+            exec_cmd_no_error(node, cmd, sudo=True)
+
     @staticmethod
     def set_interface_flow_control(node, pf_pcis, rxf=u"off", txf=u"off"):
         """Set Ethernet flow control for specified interfaces.