[dts] [PATCH]tests sriov_kvm: test vlan mirror with random vlan id.

[Lijuan Tu <lijuanx.a.tu@intel.com>]

vlan 0 is not a validated vlan id.
validated vlan id is between 1 to 4095

Signed-off-by: Lijuan Tu <lijuanx.a.tu@intel.com>
---
 tests/TestSuite_sriov_kvm.py | 57 +++++++++++++++++++++++++-------------------
 1 file changed, 32 insertions(+), 25 deletions(-)

diff --git a/tests/TestSuite_sriov_kvm.py b/tests/TestSuite_sriov_kvm.py
index cc63804..b27ad48 100644
--- a/tests/TestSuite_sriov_kvm.py
+++ b/tests/TestSuite_sriov_kvm.py
@@ -11,6 +11,7 @@ Test userland 10Gb PMD.
 import re
 import time
 from functools import wraps
+import random
 
 import dts
 from qemu_kvm import QEMUKvm
@@ -19,6 +20,7 @@ from test_case import TestCase
 from pmd_output import PmdOutput
 FRAME_SIZE_64 = 64
 VM_CORES_MASK = 'all'
+MAX_VLAN = 4095
 
 
 class TestSriovKvm(TestCase):
@@ -628,6 +630,8 @@ class TestSriovKvm(TestCase):
                 self.reset_port_mirror_rule(port, rule_id)
 
     def setup_two_vm_common_prerequisite(self):
+        self.host_testpmd.execute_cmd('port stop all')
+        self.host_testpmd.execute_cmd('port start all')
         self.vm0_dut_ports = self.vm_dut_0.get_ports('any')
         self.vm0_testpmd = PmdOutput(self.vm_dut_0)
         self.vm0_testpmd.start_testpmd(VM_CORES_MASK)
@@ -821,36 +825,39 @@ class TestSriovKvm(TestCase):
         vlan_id = 0
         vf_mask = '0x1'
         packet_num = 10
+        random_vlan = random.randint(1, MAX_VLAN - 1)
+        vlan_ids = [0, 1, random_vlan, MAX_VLAN]
 
-        if self.nic.startswith('fortville'):
-            vm_testpmd = self.get_vm_testpmd_by_mask(vf_mask)
-            vm_testpmd.execute_cmd('rx_vlan add %d %d' % (vlan_id, port_id_0))
-        else:
-            self.host_testpmd.execute_cmd(
-                'rx_vlan add %d port %d vf %s' % (vlan_id, port_id_0, vf_mask))
-        rule_id = self.set_port_vlan_mirror(port_id_0, '0 dst-pool 1 on')
+        for vlan_id in vlan_ids:
+            if self.nic.startswith('fortville'):
+                vm_testpmd = self.get_vm_testpmd_by_mask(vf_mask)
+                vm_testpmd.execute_cmd('rx_vlan add %d %d' % (vlan_id, port_id_0))
+            else:
+                self.host_testpmd.execute_cmd(
+                    'rx_vlan add %d port %d vf %s' % (vlan_id, port_id_0, vf_mask))
+            rule_id = self.set_port_vlan_mirror(port_id_0, '%d dst-pool 1 on' % vlan_id)
 
-        vm0_start_stats = self.vm0_testpmd.get_pmd_stats(port_id_0)
-        vm1_start_stats = self.vm1_testpmd.get_pmd_stats(port_id_0)
-        ether_ip = {}
-        ether_ip['dot1q'] = {'vlan': '%d' % vlan_id}
-        self.send_packet(
-            self.vm_dut_0,
-            self.vm0_dut_ports,
-            port_id_0,
-            count=packet_num,
-            **ether_ip)
-        vm1_end_stats = self.vm1_testpmd.get_pmd_stats(port_id_0)
-        vm0_end_stats = self.vm0_testpmd.get_pmd_stats(port_id_0)
+            vm0_start_stats = self.vm0_testpmd.get_pmd_stats(port_id_0)
+            vm1_start_stats = self.vm1_testpmd.get_pmd_stats(port_id_0)
+            ether_ip = {}
+            ether_ip['dot1q'] = {'vlan': '%d' % vlan_id}
+            self.send_packet(
+                self.vm_dut_0,
+                self.vm0_dut_ports,
+                port_id_0,
+                count=packet_num,
+                **ether_ip)
+            vm1_end_stats = self.vm1_testpmd.get_pmd_stats(port_id_0)
+            vm0_end_stats = self.vm0_testpmd.get_pmd_stats(port_id_0)
 
-        vm1_ret_stats = self.calculate_stats(vm1_start_stats, vm1_end_stats)
-        vm0_ret_stats = self.calculate_stats(vm0_start_stats, vm0_end_stats)
+            vm1_ret_stats = self.calculate_stats(vm1_start_stats, vm1_end_stats)
+            vm0_ret_stats = self.calculate_stats(vm0_start_stats, vm0_end_stats)
 
-        self.verify(vm1_ret_stats['RX-packets'] == packet_num and
-                    vm1_ret_stats['TX-packets'] == packet_num,
-                    "Vlan mirror failed between VM0 and VM1!")
+            self.verify(vm1_ret_stats['RX-packets'] == packet_num and
+                        vm1_ret_stats['TX-packets'] == packet_num,
+                        "Vlan mirror failed between VM0 and VM1!")
 
-        self.reset_port_mirror_rule(port_id_0, rule_id)
+            self.reset_port_mirror_rule(port_id_0, rule_id)
 
     def test_two_vms_vlan_and_pool_mirror(self):
         self.setup_2vm_2vf_env()
-- 
1.9.3