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# BSD LICENSE
#
# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""
DPDK Test suite.
Test IPv4 fragmentation features in DPDK.
"""
import dts
import string
import re
lpm_table_ipv4 = [
"{IPv4(100,10,0,0), 16, P2}",
"{IPv4(100,20,0,0), 16, P2}",
"{IPv4(100,30,0,0), 16, P0}",
"{IPv4(100,40,0,0), 16, P0}",
"{IPv4(100,50,0,0), 16, P2}",
"{IPv4(100,60,0,0), 16, P2}",
"{IPv4(100,70,0,0), 16, P0}",
"{IPv4(100,80,0,0), 16, P0}",
]
lpm_table_ipv6 = [
"{{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, P2}",
"{{2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, P2}",
"{{3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, P0}",
"{{4,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, P0}",
"{{5,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, P2}",
"{{6,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, P2}",
"{{7,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, P0}",
"{{8,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}, 48, P0}",
]
from test_case import TestCase
class TestIpfrag(TestCase):
def portRepl(self, match):
"""
Function to replace P([0123]) pattern in tables
"""
portid = match.group(1)
self.verify(int(portid) in range(4), "invalid port id")
return '%s' % eval("P" + str(portid))
def set_up_all(self):
"""
ip_fragmentation Prerequisites
"""
# Based on h/w type, choose how many ports to use
ports = self.dut.get_ports(self.nic)
print ports
# Verify that enough ports are available
self.verify(len(ports) >= 4, "Insufficient ports for testing")
self.ports_socket = self.dut.get_numa_id(ports[0])
# Verify that enough threads are available
cores = self.dut.get_core_list("2S/2C/2T")
self.verify(cores is not None, "Insufficient cores for speed testing")
global P0, P2
P0 = ports[0]
P2 = ports[2]
pat = re.compile("P([0123])")
# Prepare long prefix match table, replace P(x) port pattern
lpmStr_ipv4 = "static struct l3fwd_ipv4_route \
l3fwd_ipv4_route_array[] = {\\\n"
rtLpmTbl = list(lpm_table_ipv4)
for idx in range(len(rtLpmTbl)):
rtLpmTbl[idx] = pat.sub(self.portRepl, rtLpmTbl[idx])
lpmStr_ipv4 = lpmStr_ipv4 + ' ' * 4 + rtLpmTbl[idx] + ",\\\n"
lpmStr_ipv4 = lpmStr_ipv4 + "};"
print lpmStr_ipv4
lpmStr_ipv6 = "static struct l3fwd_ipv6_route l3fwd_ipv6_route_array[] = {\\\n"
rtLpmTbl = list(lpm_table_ipv6)
for idx in range(len(rtLpmTbl)):
rtLpmTbl[idx] = pat.sub(self.portRepl, rtLpmTbl[idx])
lpmStr_ipv6 = lpmStr_ipv6 + ' ' * 4 + rtLpmTbl[idx] + ",\\\n"
lpmStr_ipv6 = lpmStr_ipv6 + "};"
print lpmStr_ipv6
self.dut.send_expect(r"sed -i '/l3fwd_ipv4_route_array\[\].*{/,/^\}\;/c\\%s' examples/ip_fragmentation/main.c" % lpmStr_ipv4, "# ")
self.dut.send_expect(r"sed -i '/l3fwd_ipv6_route_array\[\].*{/,/^\}\;/c\\%s' examples/ip_fragmentation/main.c" % lpmStr_ipv6, "# ")
# make application
out = self.dut.build_dpdk_apps("examples/ip_fragmentation")
self.verify("Error" not in out, "compilation error 1")
self.verify("No such file" not in out, "compilation error 2")
def functional_check_ipv4(self, cores, pkt_sizes, burst=1, flag=None, funtion=None):
"""
Perform functional fragmentation checks.
"""
coremask = dts.create_mask(cores)
portmask = dts.create_mask([P0, P2])
numPortThread = len([P0, P2]) / len(cores)
result = True
errString = ''
# run ipv4_frag
self.dut.send_expect("examples/ip_fragmentation/build/ip_fragmentation -c %s -n %d -- -p %s -q %s" % (
coremask, self.dut.get_memory_channels(), portmask, numPortThread), "IP_FRAG:", 120)
txItf = self.tester.get_interface(self.tester.get_local_port(P0))
rxItf = self.tester.get_interface(self.tester.get_local_port(P2))
dmac = self.dut.get_mac_address(P0)
for size in pkt_sizes[::burst]:
# simulate to set TG properties
if flag == 'frag':
# do fragment
expPkts = (1517 + size) / 1518
val = 0
else:
expPkts = 1
val = 2
# set wait packet
self.tester.scapy_background()
self.tester.scapy_append('import string')
self.tester.scapy_append('p = sniff(iface="%s", count=%d)' % (rxItf, expPkts))
self.tester.scapy_append('nr_packets=len(p)')
self.tester.scapy_append('reslist = [p[i].sprintf("%IP.len%;%IP.id%;%IP.flags%;%IP.frag%") for i in range(nr_packets)]')
self.tester.scapy_append('RESULT = string.join(reslist, ",")')
# send packet
self.tester.scapy_foreground()
for times in range(burst):
self.tester.scapy_append('sendp([Ether(dst="%s")/IP(dst="100.10.0.1",src="1.2.3.4",flags=%d)/Raw(load="X"*%d)], iface="%s")' % (dmac, val, pkt_sizes[pkt_sizes.index(size) + times] - 38, txItf))
self.tester.scapy_execute()
out = self.tester.scapy_get_result()
nr_packets = len(out.split(','))
if funtion is not None:
if not funtion(size, out.split(',')):
result = False
errString = "failed on fragment check size " + str(size)
break
elif nr_packets != expPkts:
result = False
errString = "Failed on forward packet size " + str(size)
break
self.dut.send_expect("^C", "#")
# verify on the bottom so as to keep safety quit application
self.verify(result, errString)
def functional_check_ipv6(self, cores, pkt_sizes, burst=1, flag=None, funtion=None):
"""
Perform functional fragmentation checks.
"""
coremask = dts.create_mask(cores)
portmask = dts.create_mask([P0, P2])
numPortThread = len([P0, P2]) / len(cores)
result = True
errString = ''
# run ipv4_frag
self.dut.send_expect("examples/ip_fragmentation/build/ip_fragmentation -c %s -n %d -- -p %s -q %s" % (
coremask, self.dut.get_memory_channels(), portmask, numPortThread), "IP_FRAG:", 120)
txItf = self.tester.get_interface(self.tester.get_local_port(P0))
rxItf = self.tester.get_interface(self.tester.get_local_port(P2))
dmac = self.dut.get_mac_address(P0)
for size in pkt_sizes[::burst]:
# simulate to set TG properties
if flag == 'frag':
# do fragment
expPkts = (1517 + size) / 1518
val = 0
else:
expPkts = 1
val = 2
# set wait packet
self.tester.scapy_background()
self.tester.scapy_append('import string')
self.tester.scapy_append('p = sniff(iface="%s", count=%d)' % (rxItf, expPkts))
self.tester.scapy_append('nr_packets=len(p)')
self.tester.scapy_append('reslist = [p[i].sprintf("%IPv6.plen%;%IPv6.id%;%IPv6ExtHdrFragment.m%;%IPv6ExtHdrFragment.offset%") for i in range(nr_packets)]')
self.tester.scapy_append('RESULT = string.join(reslist, ",")')
# send packet
self.tester.scapy_foreground()
for times in range(burst):
self.tester.scapy_append('sendp([Ether(dst="%s")/IPv6(dst="101:101:101:101:101:101:101:101",src="ee80:ee80:ee80:ee80:ee80:ee80:ee80:ee80")/Raw(load="X"*%d)], iface="%s")' % (dmac, pkt_sizes[pkt_sizes.index(size) + times] - 58, txItf))
self.tester.scapy_execute()
out = self.tester.scapy_get_result()
nr_packets = len(out.split(','))
if funtion is not None:
if not funtion(size, out.split(',')):
result = False
errString = "failed on fragment check size " + str(size)
break
elif nr_packets != expPkts:
result = False
errString = "Failed on forward packet size " + str(size)
break
self.dut.send_expect("^C", "#")
# verify on the bottom so as to keep safety quit application
self.verify(result, errString)
def set_up(self):
"""
Run before each test case.
"""
pass
def test_ipfrag_normalfwd(self):
"""
Normal forward with 64, 128, 256, 512, 1024, 1518.
"""
sizelist = [64, 128, 256, 512, 1024, 1518]
cores = self.dut.get_core_list("1S/1C/2T")
self.functional_check_ipv4(cores, sizelist)
self.functional_check_ipv6(cores, sizelist)
def test_ipfrag_nofragment(self):
"""
Don't fragment test with 1519
"""
sizelist = [1519, 1518]
cores = self.dut.get_core_list("1S/1C/2T")
self.tester.send_expect("ifconfig %s mtu 9200" % self.tester.get_interface(self.tester.get_local_port(P0)), "#")
self.tester.send_expect("ifconfig %s mtu 9200" % self.tester.get_interface(self.tester.get_local_port(P2)), "#")
self.functional_check_ipv4(cores, sizelist, 2, 'nofrag')
self.functional_check_ipv6(cores, sizelist, 2, 'nofrag')
self.tester.send_expect("ifconfig %s mtu 1500" % self.tester.get_interface(self.tester.get_local_port(P0)), "#")
self.tester.send_expect("ifconfig %s mtu 1500" % self.tester.get_interface(self.tester.get_local_port(P2)), "#")
def test_ipfrag_fragment(self):
"""
Fragment test with more than 1519 packet sizes.
"""
sizelist = [1519, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000]
cores = self.dut.get_core_list("1S/1C/2T")
self.tester.send_expect("ifconfig %s mtu 9200" % self.tester.get_interface(self.tester.get_local_port(P0)), "#")
self.tester.send_expect("ifconfig %s mtu 9200" % self.tester.get_interface(self.tester.get_local_port(P2)), "#")
def chkfunc(size, output):
# check total size
if (1517 + size) / 1518 != len(output):
return False
# check every field in packet
for pkt in output:
_, _, _, _ = pkt.split(';')
# length, ID, fragoff, flags
pass
return True
self.functional_check_ipv4(cores, sizelist, 1, 'frag', chkfunc)
self.functional_check_ipv6(cores, sizelist, 1, 'frag', chkfunc)
self.tester.send_expect("ifconfig %s mtu 1500" % self.tester.get_interface(self.tester.get_local_port(P0)), "#")
self.tester.send_expect("ifconfig %s mtu 1500" % self.tester.get_interface(self.tester.get_local_port(P2)), "#")
def benchmark(self, index, lcore, num_pthreads, size_list):
"""
Just Test IPv4 Throughput for selected parameters.
"""
Bps = dict()
Pps = dict()
Pct = dict()
if int(lcore[0]) == 1:
core_mask = dts.create_mask(self.dut.get_core_list(lcore, socket=self.ports_socket))
else:
core_mask = dts.create_mask(self.dut.get_core_list(lcore))
portmask = dts.create_mask([P0, P2])
self.dut.send_expect("examples/ip_fragmentation/build/ip_fragmentation -c %s -n %d -- -p %s -q %s" % (
core_mask, self.dut.get_memory_channels(), portmask, num_pthreads), "IP_FRAG:", 120)
result = [2, lcore, num_pthreads]
for size in size_list:
dmac = self.dut.get_mac_address(P0)
flows = ['Ether(dst="%s")/IP(src="1.2.3.4", dst="100.10.0.1", flags=0)/("X"*%d)' % (dmac, size - 38),
'Ether(dst="%s")/IP(src="1.2.3.4", dst="100.20.0.1", flags=0)/("X"*%d)' % (dmac, size - 38),
'Ether(dst="%s")/IPv6(dst="101:101:101:101:101:101:101:101",src="ee80:ee80:ee80:ee80:ee80:ee80:ee80:ee80")/Raw(load="X"*%d)' % (dmac, size - 58),
'Ether(dst="%s")/IPv6(dst="201:101:101:101:101:101:101:101",src="ee80:ee80:ee80:ee80:ee80:ee80:ee80:ee80")/Raw(load="X"*%d)' % (dmac, size - 58)]
self.tester.scapy_append('wrpcap("test1.pcap", [%s])' % string.join(flows, ','))
# reserved for rx/tx bidirection test
dmac = self.dut.get_mac_address(P2)
flows = ['Ether(dst="%s")/IP(src="1.2.3.4", dst="100.30.0.1", flags=0)/("X"*%d)' % (dmac, size - 38),
'Ether(dst="%s")/IP(src="1.2.3.4", dst="100.40.0.1", flags=0)/("X"*%d)' % (dmac, size - 38),
'Ether(dst="%s")/IPv6(dst="301:101:101:101:101:101:101:101",src="ee80:ee80:ee80:ee80:ee80:ee80:ee80:ee80")/Raw(load="X"*%d)' % (dmac, size - 58),
'Ether(dst="%s")/IPv6(dst="401:101:101:101:101:101:101:101",src="ee80:ee80:ee80:ee80:ee80:ee80:ee80:ee80")/Raw(load="X"*%d)' % (dmac, size - 58)]
self.tester.scapy_append('wrpcap("test2.pcap", [%s])' % string.join(flows, ','))
self.tester.scapy_execute()
tgenInput = []
tgenInput.append((self.tester.get_local_port(P0), self.tester.get_local_port(P2), "test1.pcap"))
tgenInput.append((self.tester.get_local_port(P2), self.tester.get_local_port(P0), "test2.pcap"))
factor = (size + 1517) / 1518
# wireSpd = 2 * 10000.0 / ((20 + size) * 8)
Bps[str(size)], Pps[str(size)] = self.tester.traffic_generator_throughput(tgenInput)
self.verify(Pps[str(size)] > 0, "No traffic detected")
Pps[str(size)] *= 1.0 / factor / 1000000
Pct[str(size)] = (1.0 * Bps[str(size)] * 100) / (2 * 10000000000)
result.append(Pps[str(size)])
result.append(Pct[str(size)])
dts.results_table_add_row(result)
self.dut.send_expect("^C", "#")
def test_perf_ipfrag_throughtput(self):
"""
Performance test for 64, 1518, 1519, 2k and 9k.
"""
self.verify(self.nic == 'niantic', "throughtput case require niantic 10Gb self.nic")
self.tester.send_expect("ifconfig %s mtu 9600" % self.tester.get_interface(self.tester.get_local_port(P0)), "#")
self.tester.send_expect("ifconfig %s mtu 9600" % self.tester.get_interface(self.tester.get_local_port(P2)), "#")
sizes = [64, 1518, 1519, 2000, 9000]
tblheader = ["Ports", "S/C/T", "SW threads"]
for size in sizes:
tblheader.append("%dB Mpps" % size)
tblheader.append("%d" % size)
dts.results_table_add_header(tblheader)
lcores = [("1S/1C/1T", 2), ("1S/1C/2T", 2), ("1S/2C/1T", 2), ("2S/1C/1T", 2)]
index = 1
for (lcore, numThr) in lcores:
self.benchmark(index, lcore, numThr, sizes)
index += 1
dts.results_table_print()
self.tester.send_expect("ifconfig %s mtu 1500" % self.tester.get_interface(self.tester.get_local_port(P0)), "#")
self.tester.send_expect("ifconfig %s mtu 1500" % self.tester.get_interface(self.tester.get_local_port(P2)), "#")
def tear_down(self):
"""
Run after each test case.
"""
pass
def tear_down_all(self):
"""
Run after each test suite.
"""
self.dut.send_expect("^C", "#")
pass
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