1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
# <COPYRIGHT_TAG>
import re
import time
import dts
from qemu_kvm import QEMUKvm
from test_case import TestCase
from pmd_output import PmdOutput
from utils import RED, GREEN
from net_device import NetDevice
from crb import Crb
from scapy.all import *
VM_CORES_MASK = 'all'
class TestVfPortStartStop(TestCase):
def set_up_all(self):
self.dut_ports = self.dut.get_ports(self.nic)
self.verify(len(self.dut_ports) >= 1, "Insufficient ports")
self.vm0 = None
self.filename = "/tmp/vf.pcap"
def set_up(self):
self.setup_1pf_2vf_1vm_env_flag = 0
def pktgen_prerequisites(self):
"""
igb_uio.ko should be put in ~ before you using pktgen
"""
out = self.tester.send_expect("ls", "#")
self.verify("igb_uio.ko" in out, "No file igb_uio.ko, please add it in ~")
self.tester.send_expect("modprobe uio", "#", 70)
out = self.tester.send_expect("lsmod | grep igb_uio", "#")
if "igb_uio" in out:
self.tester.send_expect("rmmod -f igb_uio", "#", 70)
self.tester.send_expect("insmod ~/igb_uio.ko", "#", 60)
out = self.tester.send_expect("lsmod | grep igb_uio", "#")
assert ("igb_uio" in out), "Failed to insmod igb_uio"
total_huge_pages = self.tester.get_total_huge_pages()
if total_huge_pages == 0:
self.tester.mount_huge_pages()
self.tester.set_huge_pages(2048)
def pktgen_kill(self):
"""
Kill all pktgen on tester.
"""
pids = []
pid_reg = r'p(\d+)'
out = self.tester.alt_session.send_expect("lsof -Fp /var/run/.pg_config", "#", 20)
if len(out):
lines = out.split('\r\n')
for line in lines:
m = re.match(pid_reg, line)
if m:
pids.append(m.group(1))
for pid in pids:
self.tester.alt_session.send_expect('kill -9 %s' % pid, '# ', 20)
def send_and_verify(self, dst_mac, testpmd):
"""
Generates packets by pktgen
"""
self.testpmd_reset_status(testpmd)
self.pktgen_prerequisites()
# bind ports
self.tester_tx_port = self.tester.get_local_port(self.dut_ports[0])
self.tester_tx_pci = self.tester.ports_info[self.tester_tx_port]['pci']
port = self.tester.ports_info[self.tester_tx_port]['port']
self.tester_port_driver = port.get_nic_driver()
self.tester.send_expect("./dpdk_nic_bind.py --bind=igb_uio %s" % self.tester_tx_pci, "#")
src_mac = self.tester.get_mac(self.tester_tx_port)
if src_mac == 'N/A':
src_mac = "02:00:00:00:01"
self.create_pcap_file(self.filename, dst_mac, src_mac)
self.tester.send_expect("./pktgen -c 0x1f -n 2 --proc-type auto --socket-mem 128,128 --file-prefix pg -- -P -T -m '1.0' -s 0:%s" % self.filename, "Pktgen >", 100)
time.sleep(1)
self.tester.send_expect("start all", "Pktgen>")
time.sleep(1)
self.check_port_start_stop(testpmd)
# quit pktgen
self.tester.send_expect("stop all", "Pktgen>")
self.tester.send_expect("quit", "# ")
def create_pcap_file(self, filename, dst_mac, src_mac):
"""
Generates a valid PCAP file with the given configuration.
"""
def_pkts = {'IP/UDP': Ether(dst="%s" % dst_mac, src="%s" % src_mac)/IP(src="127.0.0.2")/UDP()/("X"*46),
'IP/TCP': Ether(dst="%s" % dst_mac, src="%s" % src_mac)/IP(src="127.0.0.2")/TCP()/("X"*46),
'IP/SCTP': Ether(dst="%s" % dst_mac, src="%s" % src_mac)/IP(src="127.0.0.2")/SCTP()/("X"*48),
'IPv6/UDP': Ether(dst="%s" % dst_mac, src="%s" % src_mac)/IPv6(src="::2")/UDP()/("X"*46),
'IPv6/TCP': Ether(dst="%s" % dst_mac, src="%s" % src_mac)/IPv6(src="::2")/TCP()/("X"*46),}
pkts = []
for key in def_pkts.keys():
pkts.append(def_pkts[key])
wrpcap(filename, pkts)
def testpmd_reset_status(self, testpmd):
"""
Reset testpmd :stop forword & stop port
"""
testpmd.execute_cmd('stop')
testpmd.execute_cmd('port stop all')
testpmd.execute_cmd('clear port stats all')
def check_port_start_stop(self, testpmd, times=10):
"""
VF port start/stop several times , check if it work well.
"""
for i in range(times):
out = testpmd.execute_cmd('port start all')
self.verify("Checking link statuses" in out, "ERROR: port start all")
testpmd.execute_cmd('start')
time.sleep(.5)
testpmd.execute_cmd('stop')
out = testpmd.execute_cmd('port stop all')
self.verify("Checking link statuses" in out, "ERROR: port stop all")
port_id_0 = 0
port_id_1 = 1
vf0_stats = self.vm0_testpmd.get_pmd_stats(port_id_0)
vf1_stats = self.vm0_testpmd.get_pmd_stats(port_id_1)
vf0_rx_cnt = vf0_stats['RX-packets']
self.verify(vf0_rx_cnt != 0, "no packet was received by vm0_VF0")
vf0_rx_err = vf0_stats['RX-errors']
self.verify(vf0_rx_err == 0, "vm0_VF0 rx-errors")
vf1_tx_cnt = vf1_stats['TX-packets']
self.verify(vf1_tx_cnt != 0, "no packet was transmitted by vm0_VF1")
vf1_tx_err = vf1_stats['TX-errors']
self.verify(vf1_tx_err == 0, "vm0_VF0 tx-errors")
def setup_1pf_2vf_1vm_env(self, driver='default'):
self.used_dut_port = self.dut_ports[0]
self.dut.generate_sriov_vfs_by_port(self.used_dut_port, 2, driver=driver)
self.sriov_vfs_port = self.dut.ports_info[self.used_dut_port]['vfs_port']
try:
for port in self.sriov_vfs_port:
port.bind_driver('pci-stub')
time.sleep(1)
vf0_prop = {'opt_host': self.sriov_vfs_port[0].pci}
vf1_prop = {'opt_host': self.sriov_vfs_port[1].pci}
if driver == 'igb_uio':
# start testpmd without the two VFs on the host
self.host_testpmd = PmdOutput(self.dut)
eal_param = '-b %(vf0)s -b %(vf1)s' % {'vf0': self.sriov_vfs_port[0].pci,
'vf1': self.sriov_vfs_port[1].pci}
self.host_testpmd.start_testpmd("1S/2C/2T", eal_param=eal_param)
# set up VM0 ENV
self.vm0 = QEMUKvm(self.dut, 'vm0', 'vf_port_start_stop')
self.vm0.set_vm_device(driver='pci-assign', **vf0_prop)
self.vm0.set_vm_device(driver='pci-assign', **vf1_prop)
self.vm_dut_0 = self.vm0.start()
if self.vm_dut_0 is None:
raise Exception("Set up VM0 ENV failed!")
self.setup_1pf_2vf_1vm_env_flag = 1
except Exception as e:
self.destroy_1pf_2vf_1vm_env()
raise Exception(e)
def destroy_1pf_2vf_1vm_env(self):
if getattr(self, 'vm0', None):
#destroy testpmd in vm0
self.vm0_testpmd.execute_cmd('stop')
self.vm0_testpmd.execute_cmd('quit', '# ')
self.vm0_testpmd = None
self.vm0_dut_ports = None
#destroy vm0
self.vm0.stop()
self.vm0 = None
if getattr(self, 'host_testpmd', None):
self.host_testpmd.execute_cmd('quit', '# ')
self.host_testpmd = None
if getattr(self, 'used_dut_port', None):
self.dut.destroy_sriov_vfs_by_port(self.used_dut_port)
port = self.dut.ports_info[self.used_dut_port]['port']
port.bind_driver()
self.used_dut_port = None
for port_id in self.dut_ports:
port = self.dut.ports_info[port_id]['port']
port.bind_driver()
self.setup_1pf_2vf_1vm_env_flag = 0
def test_start_stop_with_kernel_1pf_2vf_1vm(self):
self.setup_1pf_2vf_1vm_env(driver='')
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)
self.vm0_testpmd.execute_cmd('set fwd mac')
time.sleep(2)
dst_mac = self.vm_dut_0.get_mac_address(self.vm0_dut_ports[0])
self.send_and_verify(dst_mac, self.vm0_testpmd)
def tear_down(self):
if self.setup_1pf_2vf_1vm_env_flag == 1:
self.destroy_1pf_2vf_1vm_env()
def tear_down_all(self):
self.pktgen_kill()
self.tester.send_expect("./dpdk_nic_bind.py --bind=%s %s" %(self.tester_port_driver, self.tester_tx_pci), "#")
if getattr(self, 'vm0', None):
self.vm0.stop()
for port_id in self.dut_ports:
self.dut.destroy_sriov_vfs_by_port(port_id)
|
