[dts] [PATCH v3] tests: add test_rx_checksum_valid_flags

Liu, Yong yong.liu at intel.com
Thu Feb 23 09:43:18 CET 2017
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Thanks, applied.

On 02/24/2017 06:08 AM, Peng Yuan wrote:
> Signed-off-by: Peng Yuan <yuan.peng at intel.com>
>
> diff --git a/tests/TestSuite_checksum_offload.py b/tests/TestSuite_checksum_offload.py
> index 7989c14..9b9015d 100644
> --- a/tests/TestSuite_checksum_offload.py
> +++ b/tests/TestSuite_checksum_offload.py
> @@ -44,6 +44,7 @@ import utils
>   from test_case import TestCase
>   from pmd_output import PmdOutput
>   
> +
>   class TestChecksumOffload(TestCase):
>   
>       def set_up_all(self):
> @@ -81,6 +82,70 @@ class TestChecksumOffload(TestCase):
>               self.dut.send_expect("csum set tcp sw %d" % port, "testpmd>")
>               self.dut.send_expect("csum set sctp sw %d" % port, "testpmd>")
>   
> +    def get_chksum_values(self, packets_expected):
> +        """
> +        Validate the checksum flags.
> +        """
> +        checksum_pattern = re.compile("chksum.*=.*(0x[0-9a-z]+)")
> +
> +        chksum = dict()
> +
> +        self.tester.send_expect("scapy", ">>> ")
> +
> +        for packet_type in packets_expected.keys():
> +            self.tester.send_expect("p = %s" % packets_expected[packet_type], ">>>")
> +            out = self.tester.send_expect("p.show2()", ">>>")
> +            chksums = checksum_pattern.findall(out)
> +            chksum[packet_type] = chksums
> +
> +        self.tester.send_expect("exit()", "#")
> +
> +        return chksum
> +
> +    def checksum_valid_flags(self, packets_sent, flag):
> +        """
> +        Sends packets and check the checksum valid-flags.
> +        """
> +        self.tester.scapy_foreground()
> +        self.dut.send_expect("start", "testpmd>")
> +        mac = self.dut.get_mac_address(self.dut_ports[0])
> +        tx_interface = self.tester.get_interface(self.tester.get_local_port(self.dut_ports[0]))
> +        self.tester.scapy_foreground()
> +
> +        for packet_type in packets_sent.keys():
> +            self.tester.scapy_append('sendp([%s], iface="%s")' % (packets_sent[packet_type], tx_interface))
> +            self.tester.scapy_execute()
> +            out = self.dut.get_session_output(timeout=1)
> +            lines = out.split("\r\n")
> +
> +            # collect the checksum result
> +            for line in lines:
> +                line = line.strip()
> +                if len(line) != 0 and line.startswith("rx"):
> +                    # IPv6 don't be checksum, so always show "GOOD"
> +                    if packet_type.startswith("IPv6"):
> +                        if "PKT_RX_L4_CKSUM" not in line:
> +                            self.verify(0, "There is no checksum flags appeared!")
> +                        else:
> +                            if (flag == 1):
> +                                self.verify("PKT_RX_L4_CKSUM_GOOD" in line, "Packet Rx L4 checksum valid-flags error!")
> +                            elif (flag == 0):
> +                                self.verify("PKT_RX_L4_CKSUM_BAD" in line, "Packet Rx L4 checksum valid-flags error!")
> +                    else:
> +                        if "PKT_RX_L4_CKSUM" not in line:
> +                            self.verify(0, "There is no L4 checksum flags appeared!")
> +                        elif "PKT_RX_IP_CKSUM" not in line:
> +                            self.verify(0, "There is no IP checksum flags appeared!")
> +                        else:
> +                            if (flag == 1):
> +                                self.verify("PKT_RX_L4_CKSUM_GOOD" in line, "Packet Rx L4 checksum valid-flags error!")
> +                                self.verify("PKT_RX_IP_CKSUM_GOOD" in line, "Packet Rx IP checksum valid-flags error!")
> +                            elif (flag == 0):
> +                                self.verify("PKT_RX_L4_CKSUM_BAD" in line, "Packet Rx L4 checksum valid-flags error!")
> +                                self.verify("PKT_RX_IP_CKSUM_BAD" in line, "Packet Rx IP checksum valid-flags error!")
> +
> +        self.dut.send_expect("stop", "testpmd>")
> +
>       def checksum_validate(self, packets_sent, packets_expected):
>           """
>           Validate the checksum.
> @@ -123,16 +188,16 @@ class TestChecksumOffload(TestCase):
>           self.verify(len(packets_sent) == len(packets_received), "Unexpected Packets Drop")
>   
>           for packet_received in packets_received:
> -            ip_checksum, tcp_checksum, udp_checksup, sctp_checksum = packet_received.split(';')
> +            ip_checksum, tcp_checksum, udp_checksum, sctp_checksum = packet_received.split(';')
>   
>               packet_type = ''
>               l4_checksum = ''
>               if tcp_checksum != '??':
>                   packet_type = 'TCP'
>                   l4_checksum = tcp_checksum
> -            elif udp_checksup != '??':
> +            elif udp_checksum != '??':
>                   packet_type = 'UDP'
> -                l4_checksum = udp_checksup
> +                l4_checksum = udp_checksum
>               elif sctp_checksum != '??':
>                   packet_type = 'SCTP'
>                   l4_checksum = sctp_checksum
> @@ -157,16 +222,16 @@ class TestChecksumOffload(TestCase):
>           mac = self.dut.get_mac_address(self.dut_ports[0])
>   
>           pktsChkErr = {'IP/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/UDP(chksum=0xf)/("X"*46)' % mac,
> -                'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/TCP(chksum=0xf)/("X"*46)' % mac,
> -                'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/SCTP(chksum=0xf)/("X"*48)' % mac,
> -                'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IPv6(src="::1")/UDP(chksum=0xf)/("X"*46)' % mac,
> -                'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IPv6(src="::1")/TCP(chksum=0xf)/("X"*46)' % mac}
> +                      'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/TCP(chksum=0xf)/("X"*46)' % mac,
> +                      'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/SCTP(chksum=0xf)/("X"*48)' % mac,
> +                      'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IPv6(src="::1")/UDP(chksum=0xf)/("X"*46)' % mac,
> +                      'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IPv6(src="::1")/TCP(chksum=0xf)/("X"*46)' % mac}
>   
>           pkts = {'IP/UDP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/UDP()/("X"*46)' % mac,
> -                    'IP/TCP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/TCP()/("X"*46)' % mac,
> -                    'IP/SCTP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/SCTP()/("X"*48)' % mac,
> -                    'IPv6/UDP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IPv6(src="::1")/UDP()/("X"*46)' % mac,
> -                    'IPv6/TCP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IPv6(src="::1")/TCP()/("X"*46)' % mac}
> +                'IP/TCP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/TCP()/("X"*46)' % mac,
> +                'IP/SCTP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/SCTP()/("X"*48)' % mac,
> +                'IPv6/UDP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IPv6(src="::1")/UDP()/("X"*46)' % mac,
> +                'IPv6/TCP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IPv6(src="::1")/TCP()/("X"*46)' % mac}
>   
>           if self.kdriver == "fm10k":
>               del pktsChkErr['IP/SCTP']
> @@ -177,7 +242,50 @@ class TestChecksumOffload(TestCase):
>           result = self.checksum_validate(pktsChkErr, pkts)
>           self.dut.send_expect("stop", "testpmd>")
>           self.verify(len(result) == 0, string.join(result.values(), ","))
> -
> +
> +    def test_rx_checksum_valid_flags(self):
> +        """
> +        Insert right and wrong IPv4/IPv6 UDP/TCP/SCTP checksum on the
> +        transmit packet.Enable Checksum offload.
> +        Verify the checksum valid-flags.
> +        """
> +        mac = self.dut.get_mac_address(self.dut_ports[0])
> +
> +        pkts_ref = {'IP/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP()/UDP()/("X"*46)' % mac,
> +                    'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1")/TCP()/("X"*46)' % mac,
> +                    'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1")/SCTP()/("X"*48)' % mac,
> +                    'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/UDP()/("X"*46)' % mac,
> +                    'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/TCP()/("X"*46)' % mac}
> +
> +        result = dict()
> +        if self.kdriver == "fm10k":
> +            del pkts['IP/SCTP']
> +            del pkts_ref['IP/SCTP']
> +
> +        self.checksum_enablehw(self.dut_ports[0])
> +
> +        # get the packet checksum value
> +        result = self.get_chksum_values(pkts_ref)
> +
> +        # set the expected checksum values same with the actual values
> +        pkts_good = {'IP/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(chksum=int(%s))/UDP(chksum=int(%s))/("X"*46)' % (mac, result['IP/UDP'][0], result['IP/UDP'][1]),
> +                     'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1",chksum=int(%s))/TCP(chksum=int(%s))/("X"*46)' % (mac, result['IP/TCP'][0], result['IP/TCP'][1]),
> +                     'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1",chksum=int(%s))/SCTP(chksum=int(%s))/("X"*48)' % (mac, result['IP/SCTP'][0], result['IP/SCTP'][1]),
> +                     'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/UDP(chksum=int(%s))/("X"*46)' % (mac, result['IPv6/UDP'][0]),
> +                     'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/TCP(chksum=int(%s))/("X"*46)' % (mac, result['IPv6/TCP'][0])}
> +
> +        # set the expected checksum values different from the actual values
> +        pkts_bad = {'IP/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(chksum=0x0)/UDP(chksum=0xf)/("X"*46)' % mac,
> +                    'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1",chksum=0x0)/TCP(chksum=0xf)/("X"*46)' % mac,
> +                    'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1",chksum=0x0)/SCTP(chksum=0xf)/("X"*48)' % mac,
> +                    'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/UDP(chksum=0xf)/("X"*46)' % mac,
> +                    'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/TCP(chksum=0xf)/("X"*46)' % mac}
> +
> +        # send the packet checksum value same with the expected value
> +        self.checksum_valid_flags(pkts_good, 1)
> +        # send the packet checksum value different from the expected value
> +        self.checksum_valid_flags(pkts_bad, 0)
> +
>       def test_checksum_offload_enable(self):
>           """
>           Insert IPv4/IPv6 UDP/TCP/SCTP checksum on the transmit packet.
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