This suite tests the ability of the Poll Mode Driver to enable and disable Rx/Tx queues on a port.
Signed-off-by: Dean Marx <dm...@iol.unh.edu> --- dts/tests/TestSuite_queue_start_stop.py | 79 +++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 dts/tests/TestSuite_queue_start_stop.py diff --git a/dts/tests/TestSuite_queue_start_stop.py b/dts/tests/TestSuite_queue_start_stop.py new file mode 100644 index 0000000000..e180b916e8 --- /dev/null +++ b/dts/tests/TestSuite_queue_start_stop.py @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(c) 2024 University of New Hampshire + +"""Rx/Tx queue start and stop functionality suite. + +This suite tests the ability of the poll mode driver to start and +stop either the Rx or Tx queue (depending on the port) during runtime, +and verify that packets are not received when one is disabled. + +Given a paired port topology, the Rx queue will be disabled on port 0, +and the Tx queue will be disabled on port 1. + +""" + +from scapy.layers.inet import IP # type: ignore[import] +from scapy.layers.l2 import Ether # type: ignore[import] +from scapy.packet import Raw # type: ignore[import] + +from framework.remote_session.testpmd_shell import TestPmdForwardingModes, TestPmdShell +from framework.test_suite import TestSuite + +class TestQueueStartStop(TestSuite): + """DPDK Queue start/stop test suite. + + Ensures Rx/Tx queue on a port can be disabled and enabled. + Verifies packets are not received when either queue is disabled. + """ + + def set_up_suite(self) -> None: + """Set up the test suite. + + Setup: + Create a testpmd session and set up tg nodes + verify that at least two ports are open for session + """ + self.verify(len(self._port_links) > 1, "Not enough ports") + + def send_packet_and_verify(self, should_receive: bool = True): + """Generate a packet, send to the DUT, and verify it is forwarded back. + + Args: + should_receive: indicate whether the packet should be received + """ + packet = Ether()/IP()/Raw(load="xxxxx") + received = self.send_packet_and_capture(packet) + test_packet = None + for packet in received: + if packet.haslayer(Raw) and packet[Raw].load == b'xxxxx': + test_packet = packet + break + if should_receive: + self.verify(test_packet is not None, "Packet was dropped when it should have been received") + else: + self.verify(test_packet is None, "Packet was received when it should have been dropped") + + def test_all_queues_enabled(self) -> None: + """Ensure packets are received when both Tx and Rx queues are enabled. + + Test: + Create an interactive testpmd session, stop Rx queue on port 0, verify + packets are dropped. Then start port 0 Rx queue, stop port 1 Tx queue, and + verify packets are dropped.""" + testpmd = self.sut_node.create_interactive_shell(TestPmdShell, privileged=True) + testpmd.set_forward_mode(TestPmdForwardingModes.mac) + testpmd.stop_port_queue(0, 0, True) + + testpmd.start() + self.send_packet_and_verify(False) + testpmd.stop() + + testpmd.start_port_queue(0, 0, True) + testpmd.stop_port_queue(1, 0, False) + + testpmd.start() + self.send_packet_and_verify(False) + testpmd.close() + + def tear_down_suite(self) -> None: + """Tear down the suite.""" -- 2.44.0
