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-rw-r--r--resources/libraries/python/IPTopology.py97
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+# Copyright (c) 2023 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""IP Topology Library."""
+
+from robot.libraries.BuiltIn import BuiltIn
+
+from resources.libraries.python.IPUtil import IPUtil
+
+
+class IPTopology:
+ """IP Topology Library."""
+
+ @staticmethod
+ def initialize_ipv4_forwarding(count=1, parallel_links=1):
+ """
+ Custom setup of IPv4 forwarding with scalability of IP routes on all
+ DUT nodes in 2-node / 3-node circular topology.
+
+ :param count: Number of routes to configure.
+ :param parallel_links: Number of parallel links to configure.
+ :type count: int
+ :type parallel_links: int
+ """
+ topology = BuiltIn().get_variable_value("&{topology_info}")
+ dut = topology["duts"][-1]
+ ifl = BuiltIn().get_variable_value("${int}")
+
+ for l, i in zip(range(parallel_links), range(1, parallel_links*2, 2)):
+ dut1_int1 = BuiltIn().get_variable_value(f"${{DUT1_{ifl}{i}}}[0]")
+ dut1_int2 = BuiltIn().get_variable_value(f"${{DUT1_{ifl}{i+1}}}[0]")
+ dut_int1 = BuiltIn().get_variable_value(f"${{{dut}_{ifl}{i}}}[0]")
+ dut_int2 = BuiltIn().get_variable_value(f"${{{dut}_{ifl}{i+1}}}[0]")
+
+ IPUtil.vpp_add_ip_neighbor(
+ topology["DUT1"], dut1_int1, f"1.{l}.1.1",
+ topology[f"TG_pf{i}_mac"][0]
+ )
+ if dut == "DUT2":
+ dut_mac1 = BuiltIn().get_variable_value(
+ f"${{{dut}_{ifl}{i}_mac}}[0]"
+ )
+ IPUtil.vpp_add_ip_neighbor(
+ topology["DUT1"], dut1_int2, f"3.{l}.3.2", dut_mac1
+ )
+ dut_mac2 = BuiltIn().get_variable_value(
+ f"${{DUT1_{ifl}{i+1}_mac}}[0]"
+ )
+ IPUtil.vpp_add_ip_neighbor(
+ topology["DUT2"], dut_int1, f"3.{l}.3.1", dut_mac2
+ )
+ IPUtil.vpp_add_ip_neighbor(
+ topology[dut], dut_int2, f"2.{l}.2.1",
+ topology[f"TG_pf{i}_mac"][0]
+ )
+
+ IPUtil.vpp_interface_set_ip_address(
+ topology["DUT1"], dut1_int1, f"1.{l}.1.2", 30
+ )
+ if dut == "DUT2":
+ IPUtil.vpp_interface_set_ip_address(
+ topology["DUT1"], dut1_int2, f"3.{l}.3.1", 30
+ )
+ IPUtil.vpp_interface_set_ip_address(
+ topology["DUT2"], dut_int1, f"3.{l}.3.2", 30
+ )
+ IPUtil.vpp_interface_set_ip_address(
+ topology[dut], dut_int2, f"2.{l}.2.2", 30
+ )
+
+ IPUtil.vpp_route_add(
+ topology["DUT1"], f"{i}0.0.0.0", 32, gateway=f"1.{l}.1.1",
+ interface=dut1_int1, count=count
+ )
+ if dut == "DUT2":
+ IPUtil.vpp_route_add(
+ topology["DUT1"], f"{i+1}0.0.0.0", 32, gateway=f"3.{l}.3.2",
+ interface=dut1_int2, count=count
+ )
+ IPUtil.vpp_route_add(
+ topology["DUT2"], f"{i}0.0.0.0", 32, gateway=f"3.{l}.3.1",
+ interface=dut_int1, count=count
+ )
+ IPUtil.vpp_route_add(
+ topology[dut], f"{i+1}0.0.0.0", 32, gateway=f"2.{l}.2.1",
+ interface=dut_int2, count=count
+ )