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authorJohn Lo <loj@cisco.com>2020-01-04 00:32:46 -0500
committerDave Barach <openvpp@barachs.net>2020-01-04 14:51:07 +0000
commit69c2a5895a7233076fdf4328a80bd0777931d159 (patch)
tree670e371f2eca6209c730d608ff2942d3fb87a9ef /src
parentff63798ae42309e9d53ace34d57a880a872a4ab0 (diff)
vxlan: Add FEATURE.yaml
Type: docs Signed-off-by: John Lo <loj@cisco.com> Change-Id: I4372195121e05af671a3f48b1c2796cd0132b279
Diffstat (limited to 'src')
-rw-r--r--src/vnet/vxlan/FEATURE.yaml14
-rw-r--r--src/vnet/vxlan/vxlan_packet.h2
2 files changed, 15 insertions, 1 deletions
diff --git a/src/vnet/vxlan/FEATURE.yaml b/src/vnet/vxlan/FEATURE.yaml
new file mode 100644
index 00000000000..41abbca12cf
--- /dev/null
+++ b/src/vnet/vxlan/FEATURE.yaml
@@ -0,0 +1,14 @@
+---
+name: Virtual eXtensible LAN (VXLAN)
+maintainer: John Lo <loj@cisco.com>
+features:
+ - VXLAN tunnel for support of L2 overlay/virtual networks (RFC-7348)
+ - Support either IPv4 or IPv6 underlay network VTEPs
+ - Flooding via headend replication if all VXLAN tunnels in BD are unicast ones
+ - Multicast VXLAN tunnel can be added to BD to flood via IP multicast
+ - VXLAN encap with flow-hashed source port for better underlay IP load balance
+ - VXLAN decap optimization via vxlan-bypass IP feature on underlay interfaces
+ - VXLAN decap HW offload using flow director with DPDK on Intel Fortville NICs
+description: "VXLAN tunnels support L2 overlay networks that span L3 networks"
+state: production
+properties: [API, CLI, MULTITHREAD]
diff --git a/src/vnet/vxlan/vxlan_packet.h b/src/vnet/vxlan/vxlan_packet.h
index 5f93a36fd8f..e172b6f4eb9 100644
--- a/src/vnet/vxlan/vxlan_packet.h
+++ b/src/vnet/vxlan/vxlan_packet.h
@@ -16,7 +16,7 @@
#define __included_vxlan_packet_h__ 1
/*
- * From RFC-7384
+ * From RFC-7348
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |R|R|R|R|I|R|R|R| Reserved |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
/a> 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 
# Copyright (c) 2023 Cisco and/or its affiliates.
#
# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
#
# Licensed under the Apache License 2.0 or
# GNU General Public License v2.0 or later;  you may not use this file
# except in compliance with one of these Licenses. You
# may obtain a copy of the Licenses at:
#
#     http://www.apache.org/licenses/LICENSE-2.0
#     https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
#
# Note: If this file is linked with Scapy, which is GPLv2+, your use of it
# must be under GPLv2+.  If at any point in the future it is no longer linked
# with Scapy (or other GPLv2+ licensed software), you are free to choose
# Apache 2.
#
# 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.

"""Stream profile for T-rex traffic generator.

Stream profile:
 - Two streams sent in directions 0 --> 1 and 1 --> 0 at the same time.
 - Direction 0 --> 1:
   - Packet: ETH / IP
   - Source IP address range:            10.128.1.0 - 10.132.0.255
   - Destination IP address range:       10.0.1.0 - 10.4.0.255
 - Direction 1 --> 0:
   - Packet: ETH / IP / UDP / GENEVE / ETH / IP
   - Outer Source IP address range:      1.1.1.1
   - Outer Destination IP address range: 1.1.1.2
   - Inner Source IP address range:      10.0.1.0 - 10.4.0.255
   - Inner Destination IP address range: 10.128.1.0 - 10.132.0.255
   - Source UDP port range:              1024 - 65535
   - Destination UDP port range:         6081
"""

from ctypes import c_int
from ipaddress import IPv4Address

from trex.stl.api import *
from scapy.contrib.geneve import GENEVE

from profile_trex_stateless_base_class import TrafficStreamsBaseClass


class TrafficStreams(TrafficStreamsBaseClass):
    """Stream profile."""

    def __init__(self):
        """Initialization and setting of streams' parameters."""

        super(TrafficStreamsBaseClass, self).__init__()

        # Nr. of GENEVE tunnels
        self.n_tunnels = 1024
        # VNIs used in GENEVE headers of Direction 1 --> 0.
        self.p2_geneve_start_vni = 1

        # IPs used in packet headers of Direction 0 --> 1.
        self.p1_src_start_ip = u"10.128.1.0"
        self.p1_dst_start_ip = u"10.0.1.0"

        # IPs used in packet headers of Direction 1 --> 0.
        self.p2_outer_src_ip = u"1.1.1.1"
        self.p2_outer_dst_ip = u"1.1.1.2"

        self.p2_inner_src_start_ip = u"10.0.1.0"
        self.p2_inner_dst_start_ip = u"10.128.1.0"

        # MACs used in inner ethernet header of Direction 1 --> 0.
        self.p2_inner_dst_mac = u"d0:0b:ee:d0:00:00"

        # UDP ports used in packet headers of Direction 1 --> 0.
        self.p2_udp_sport_start = 1024
        self.p2_udp_dport = 6081

    def define_packets(self):
        """Defines the packets to be sent from the traffic generator.

        Packet definition: | ETH | IP | UDP |

        :returns: Packets to be sent from the traffic generator.
        :rtype: tuple
        """
        p1_src_start_ip_int = int(IPv4Address(self.p1_src_start_ip))
        p1_dst_start_ip_int = int(IPv4Address(self.p1_dst_start_ip))
        p2_inner_src_start_ip_int = int(IPv4Address(self.p2_inner_src_start_ip))
        p2_inner_dst_start_ip_int = int(IPv4Address(self.p2_inner_dst_start_ip))

        # Direction 0 --> 1
        base_pkt_a = (
            Ether() /
            IP(
                src=self.p1_src_start_ip,
                dst=self.p1_dst_start_ip,
                proto=61
            )
        )
        # Direction 1 --> 0
        base_pkt_b = (
            Ether() /
            IP(
                src=self.p2_outer_src_ip,
                dst=self.p2_outer_dst_ip,
                proto=17
            ) /
            UDP(
                sport=self.p2_udp_sport_start,
                dport=self.p2_udp_dport
            ) /
            GENEVE(vni=self.p2_geneve_start_vni) /
            Ether(dst=self.p2_inner_dst_mac) /
            IP(
                src=self.p2_inner_src_start_ip,
                dst=self.p2_inner_dst_start_ip,
                proto=61
            )
        )
        base_pkt_b /= Raw(load=self._gen_payload(110 - len(base_pkt_b)))
        # Direction 0 --> 1
        vm1 = STLScVmRaw(
            [
                STLVmFlowVar(
                    name=u"ip_src",
                    min_value=p1_src_start_ip_int,
                    max_value=p1_src_start_ip_int + self.n_tunnels * 256 - 1,
                    size=4,
                    op=u"inc"
                ),
                STLVmWrFlowVar(
                    fv_name=u"ip_src",
                    pkt_offset=u"IP.src"
                ),
                STLVmFlowVar(
                    name=u"ip_dst",
                    min_value=p1_dst_start_ip_int,
                    max_value=p1_dst_start_ip_int + self.n_tunnels * 256 - 1,
                    size=4,
                    op=u"inc"
                ),
                STLVmWrFlowVar(
                    fv_name=u"ip_dst",
                    pkt_offset=u"IP.dst"
                ),
                STLVmFixIpv4(
                    offset=u"IP"
                )
            ]
        )
        # Direction 1 --> 0
        vm2 = STLScVmRaw(
            [
                STLVmFlowVar(
                    name=u"ip",
                    min_value=0,
                    max_value=self.n_tunnels * 256 - 1,
                    size=4,
                    op=u"inc"
                ),
                STLVmWrMaskFlowVar(
                    fv_name=u"ip",
                    pkt_cast_size=4,
                    mask=0xffffffff,
                    add_value=p2_inner_src_start_ip_int,
                    pkt_offset=u"IP:1.src"
                ),
                STLVmWrMaskFlowVar(
                    fv_name=u"ip",
                    pkt_cast_size=4,
                    mask=0xffffffff,
                    add_value=p2_inner_dst_start_ip_int,
                    pkt_offset=u"IP:1.dst"
                ),
                STLVmWrMaskFlowVar(
                    fv_name=u"ip",
                    pkt_cast_size=2,
                    mask=0xffff,
                    add_value=self.p2_udp_sport_start,
                    pkt_offset=u"UDP.sport"
                ),
                STLVmWrMaskFlowVar(
                    fv_name=u"ip",
                    pkt_cast_size=4,
                    mask=0xffffff00,
                    add_value=(self.p2_geneve_start_vni << 8),
                    pkt_offset=u"GENEVE.vni"
                ),
                STLVmWrMaskFlowVar(
                    fv_name=u"ip",
                    pkt_cast_size=4,
                    mask=0xffffff,
                    shift=-8,
                    offset_fixup=2,
                    add_value=c_int(
                        int(
                            self.p2_inner_dst_mac.replace(u":", u"")[6:12], 16
                        ) << 8
                    ).value,
                    pkt_offset=u"Ether:1.dst"
                ),
                STLVmFixIpv4(
                    offset=u"IP:1"
                ),
                STLVmFixIpv4(
                    offset=u"IP"
                ),
                STLVmFixChecksumHw(
                    l3_offset=u"IP",
                    l4_offset=u"UDP",
                    l4_type=CTRexVmInsFixHwCs.L4_TYPE_UDP
                )
            ]
        )

        return base_pkt_a, base_pkt_b, vm1, vm2


def register():
    """Register this traffic profile to T-rex.

    Do not change this function.

    :return: Traffic streams.
    :rtype: Object
    """
    return TrafficStreams()