passt stability tests

Add a new case to support passt stability tests.

Signed-off-by: Lei Yang <[email protected]>

qemu/tests/cfg/passt_stability_tests.cfg

@@ -0,0 +1,22 @@
+- passt_stability_tests:
+    virt_test_type = qemu
+    vhost_nic1 = ""
+    nettype_nic1 = user:passt
+    net_port_forwards = TCP@10001 UDP@10001
+    type = passt_stability_tests
+    fw_stop_cmd = systemctl stop firewalld || nft flush ruleset || iptables -F
+    check_iperf_cmd = pgrep -f %s
+    iperf_version = iperf-2.1.9
+    host_iperf_file = iperf-2.1.9.tar.gz
+    linux_compile_cmd = tar zxf %s -C %s > /dev/null ; cd %s ; ./configure > /dev/null; make > /dev/null
+    catch_data = local 127.0.0.1 port 5001 connected with 127.0.0.1
+    parallel_num = 8
+    receive_cmd = socat -u TCP-LISTEN:10001,reuseaddr OPEN:/tmp/iperf-2.1.9.tar.gz,create
+    sent_cmd = socat -u FILE:%s TCP:localhost:10001
+    iperf_client_options= 'setsid %s -c %s -T s1 -P 8 -w 256k -t 200'
+    iperf_server_options = 'numactl --cpunodebind=0 %s -s -P 8 -w 256k -t 300'
+    variants:
+        - with_tcp:
+        - with_udp:
+            iperf_client_options += ' -u'
+            iperf_server_options += ' -u'

qemu/tests/passt_stability_tests.py

@@ -0,0 +1,140 @@
+import os
+import re
+import shutil
+import time
+
+from aexpect import ShellCmdError
+from avocado.utils import process
+
+from virttest import data_dir
+from virttest import utils_net
+from virttest import utils_misc
+from virttest import error_context
+
+
+@error_context.context_aware
+def run(test, params, env):
+    """
+    passt stability tests
+
+    1) Boot up VM with passt backend
+    2) Prepare the iperf environment
+    3) Select host to start iperf server, guest as client
+    4) Execute iperf tests, analyze the result
+    5) Finish test and cleanup host environment
+
+    :param test: QEMU test object.
+    :param params: Dictionary with the test parameters.
+    :param env: Dictionary with test environment.
+    """
+    def transfer_iperf_package():
+        receive_cmd = params.get("receive_cmd")
+        serial_session.sendline(receive_cmd)
+        time.sleep(5)
+        sent_cmd = params.get("sent_cmd")
+        process.run(sent_cmd % host_iperf_src_path)
+
+    def iperf_compile(src_path, dst_path, serial_session=None):
+        """Compile iperf and return its binary file path."""
+        iperf_version = params["iperf_version"]
+        iperf_source_path = os.path.join(dst_path, iperf_version)
+        compile_cmd = params["linux_compile_cmd"] % (src_path, dst_path,
+                                                     iperf_source_path)
+        try:
+            if serial_session:
+                test.log.info("Compiling %s in guest...", iperf_version)
+                serial_session.sendline(compile_cmd)
+            else:
+                test.log.info("Compiling %s in host...", iperf_version)
+                process.run(compile_cmd, shell=True, verbose=False)
+        except (process.CmdError, ShellCmdError) as err_msg:
+            test.log.error(err_msg)
+            test.error("Failed to compile iperf")
+        else:
+            iperf_bin_name = re.sub(r'[-2]', '', iperf_version.split('.')[0])
+            return os.path.join(iperf_source_path, 'src', iperf_bin_name)
+
+    def iperf_server_start():
+        """Start iperf server"""
+        info_text = "Start iperf server session in %s with cmd: %s"
+        iperf_server_cmd = iperf_server_options % host_iperf_bin
+        try:
+            test.log.info(info_text, "host", iperf_server_cmd)
+            server_output = process.system_output(iperf_server_cmd, timeout=300, verbose=False).decode()
+        except Exception as err_msg:
+            test.log.error(str(err_msg))
+            test.error("Failed to start iperf session")
+        else:
+            test.log.debug("Full connection server log:\n%s", server_output)
+            catch_data = params["catch_data"]
+            parallel_cur = len(re.findall(catch_data, server_output))
+            parallel_exp = int(params.get("parallel_num", 0))
+            if not parallel_cur:
+                test.fail("iperf client not connected to server")
+            elif parallel_exp and parallel_cur != parallel_exp:
+                test.fail("Number of parallel threads running(%d) is "
+                          "inconsistent with expectations(%d)"
+                          % (parallel_cur, parallel_exp))
+            test.log.info("iperf client successfully connected to server")
+
+    def iperf_client_start():
+        """"Start iperf client"""
+        info_text = "Start iperf client session in %s with cmd: %s"
+        iperf_client_cmd = iperf_client_options % (guest_iperf_bin, client_getway)
+        test.log.info(info_text, "guest", iperf_client_cmd)
+        serial_session.sendline(iperf_client_cmd)
+
+    def is_iperf_running(name_pattern, session=None):
+        if session:
+            check_iperf_cmd = params["check_iperf_cmd"] % name_pattern
+            status = serial_session.cmd_status(check_iperf_cmd, safe=True)
+        else:
+            status = process.system("pgrep -f %s" % name_pattern,
+                                    ignore_status=True, verbose=False)
+        return status == 0
+
+    login_timeout = params.get_numeric("login_timeout", 360)
+    fw_stop_cmd = params["fw_stop_cmd"]
+    tmp_dir = params.get("tmp_dir", "/tmp")
+    iperf_deps_dir = data_dir.get_deps_dir("iperf")
+    host_iperf_file = params["host_iperf_file"]
+    host_iperf_src_path = os.path.join(iperf_deps_dir, host_iperf_file)
+
+    vm = env.get_vm(params["main_vm"])
+    vm.verify_alive()
+    serial_session = vm.wait_for_serial_login(timeout=login_timeout)
+    serial_session.cmd_output_safe(fw_stop_cmd)
+
+    client_getway = utils_net.get_default_gateway()
+    transfer_iperf_package()
+    host_iperf_bin = iperf_compile(host_iperf_src_path, tmp_dir)
+    guest_iperf_file = params.get('guest_iperf_file', host_iperf_file)
+    guest_iperf_path = params.get('guest_iperf_path', tmp_dir)
+    guest_iperf_src_path = os.path.join(guest_iperf_path, guest_iperf_file)
+    guest_iperf_bin = iperf_compile(guest_iperf_src_path, tmp_dir, serial_session)
+    iperf_server_options = params.get('iperf_server_options')
+    iperf_client_options = params.get('iperf_client_options')
+
+    try:
+        bg_server = utils_misc.InterruptedThread(iperf_server_start)
+        bg_client = utils_misc.InterruptedThread(iperf_client_start)
+        bg_server.start()
+        if not utils_misc.wait_for(lambda: is_iperf_running(host_iperf_bin), 5, 2):
+            test.error("Failed to start iperf server.")
+        error_context.context("iperf server has started.", test.log.info)
+        bg_client.start()
+
+        error_context.context("iperf client has started.", test.log.info)
+        if not utils_misc.wait_for(lambda: is_iperf_running(guest_iperf_bin, serial_session), 5, 2):
+            test.error("Failed to start iperf client.")
+        utils_misc.wait_for(lambda: not is_iperf_running(host_iperf_bin),
+                            330, 0, 30,
+                            "Waiting for iperf test to finish.")
+        bg_server.join(timeout=60)
+        bg_client.join(timeout=60)
+
+    finally:
+        test.log.info("Cleanup host environment...")
+        process.run('pkill -9 -f %s' % host_iperf_bin, verbose=False, ignore_status=True)
+        shutil.rmtree(host_iperf_bin.rsplit('/', 2)[0], ignore_errors=True)
+        serial_session.close()