vpp_device: bind to vfio-pci before running tests

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

diff --git a/resources/libraries/python/DUTSetup.py b/resources/libraries/python/DUTSetup.py
index 16acfba..c7a5602 100644 (file)
--- a/resources/libraries/python/DUTSetup.py
+++ b/resources/libraries/python/DUTSetup.py
@@ -444,16 +444,21 @@ class DUTSetup:
         )
 
     @staticmethod
-    def pci_driver_unbind_list(node, *pci_addrs):
-        """Unbind PCI devices from current driver on node.
+    def unbind_pci_devices_from_other_driver(node, driver, *pci_addrs):
+        """Unbind PCI devices from driver other than input driver on node.
 
         :param node: DUT node.
+        :param driver: Driver to not unbind from. If None or empty string,
+            will attempt to unbind from the current driver.
         :param pci_addrs: PCI device addresses.
         :type node: dict
+        :type driver: str
         :type pci_addrs: list
         """
         for pci_addr in pci_addrs:
-            DUTSetup.pci_driver_unbind(node, pci_addr)
+            if not driver or \
+                    DUTSetup.get_pci_dev_driver(node, pci_addr) != driver:
+                DUTSetup.pci_driver_unbind(node, pci_addr)
 
     @staticmethod
     def pci_driver_bind(node, pci_addr, driver):