tests: don't enforce NS management support for local testing

The tests framework added supported and dependency on NS management for
clean setups. Though this prevents to run part of the tests suites on
devices which do no support NS management.

Add feature detection and skip the setup/tear down code for the NS
setup if the device doesn't support this.

Signed-off-by: Daniel Wagner <[email protected]>

Author: igaw

tests/nvme_test.py

@@ -77,14 +77,18 @@ def setUp(self):
         self.load_config()
         if self.do_validate_pci_device:
             self.validate_pci_device()
-        self.create_and_attach_default_ns()
+        ns_mgmt = self.get_ns_mgmt_support()
+        self.ns_mgmt_supported = ns_mgmt["ns_mgmt"] and ns_mgmt["ns_attach"]
+        if self.ns_mgmt_supported:
+            self.create_and_attach_default_ns()
         print(f"\nsetup: ctrl: {self.ctrl}, ns1: {self.ns1}, default_nsid: {self.default_nsid}, flbas: {self.flbas}\n")
 
     def tearDown(self):
         """ Post Section for TestNVMe. """
         if self.clear_log_dir is True:
             shutil.rmtree(self.log_dir, ignore_errors=True)
-        self.create_and_attach_default_ns()
+        if self.ns_mgmt_supported:
+            self.create_and_attach_default_ns()
         print(f"\nteardown: ctrl: {self.ctrl}, ns1: {self.ns1}, default_nsid: {self.default_nsid}, flbas: {self.flbas}\n")
 
     @classmethod
@@ -209,6 +213,23 @@ def get_ctrl_id(self):
                         "ERROR : nvme list-ctrl could not find ctrl")
         return str(json_output['ctrl_list'][0]['ctrl_id'])
 
+    def get_ns_mgmt_support(self):
+        oacs_str = self.get_id_ctrl_field_value("oacs")
+
+        try:
+            oacs = int(oacs_str, 0)
+        except (TypeError, ValueError):
+            raise ValueError(f"Invalid OACS value: {oacs_str!r}")
+
+        ns_mgmt_supported = bool(oacs & (1 << 3))
+        ns_attach_supported = bool(oacs & (1 << 4))
+
+        return {
+            "raw": oacs,
+            "ns_mgmt": ns_mgmt_supported,
+            "ns_attach": ns_attach_supported,
+        }
+
     def get_nsid_list(self):
         """ Wrapper for extracting the namespace list.
             - Args: