Report: add geneve to perf release notes

Change-Id: I0473bda59edf874119a474fb2e84177e19f58d02
Signed-off-by: Jan Gelety <jgelety@cisco.com>
(cherry picked from commit 67d3b2a44d49dd2c4a1b2f722849f57432787137)

3 files changed, 79 insertions, 0 deletions

diff --git a/docs/report/introduction/methodology_geneve.rst b/docs/report/introduction/methodology_geneve.rst
new file mode 100644
index 0000000000..1ae8bfaa7a
--- /dev/null
+++ b/docs/report/introduction/methodology_geneve.rst
@@ -0,0 +1,73 @@
+.. _geneve_methodology:
+
+Generic Network Virtualization Encapsulation
+--------------------------------------------
+
+GENEVE Prefix Bindings
+^^^^^^^^^^^^^^^^^^^^^^
+
+GENEVE prefix bindings should be representative to target applications, where
+a packet flows of particular set of IPv4 addresses (L3 underlay network) is
+routed via dedicated GENEVE interface by building an L2 overlay.
+
+Private address ranges to be used in tests:
+
+- East hosts ip address range: 10.0.1.0 - 10.127.255.255 (10.0/9 prefix)
+
+  - Total of 2^23 - 256 (8 388 352) of usable IPv4 addresses
+  - Usable in tests for up to 32 767 GENEVE tunnels (IPv4 underlay networks)
+
+- West hosts ip address range: 10.128.1.0 - 10.255.255.255 (10.128/9 prefix)
+
+  - Total of 2^23 - 256 (8 388 352) of usable IPv4 addresses
+  - Usable in tests for up to 32 767 GENEVE tunnels (IPv4 underlay networks)
+
+GENEVE Tunnel Scale
+~~~~~~~~~~~~~~~~~~~
+
+If N is a number of GENEVE tunnels (and IPv4 underlay networks) then TG sends
+256 packet flows in every of N different sets:
+
+- i = 1,2,3, ... N - GENEVE tunnel index
+
+- East-West direction: GENEVE encapsulated packets
+
+  - Outer IP header:
+
+    - src ip: 1.1.1.1
+
+    - dst ip: 1.1.1.2
+
+  - GENEVE header:
+
+    - vni: i
+
+  - Inner IP header:
+
+    - src_ip_range(i) = 10.(0 + rounddown(i/255)).(modulo(i/255)).(0-to-255)
+
+    - dst_ip_range(i) = 10.(128 + rounddown(i/255)).(modulo(i/255)).(0-to-255)
+
+- West-East direction: non-encapsulated packets
+
+  - IP header:
+
+    - src_ip_range(i) = 10.(128 + rounddown(i/255)).(modulo(i/255)).(0-to-255)
+
+    - dst_ip_range(i) = 10.(0 + rounddown(i/255)).(modulo(i/255)).(0-to-255)
+
++----------------+-------------+
+| geneve-tunnels | total-flows |
++================+=============+
+|              1 |         256 |
++----------------+-------------+
+|              4 |       1 024 |
++----------------+-------------+
+|             16 |       4 096 |
++----------------+-------------+
+|             64 |      16 384 |
++----------------+-------------+
+|            256 |      65 536 |
++----------------+-------------+
+|          1 024 |     262 144 |
++----------------+-------------+
diff --git a/docs/report/vpp_performance_tests/csit_release_notes.rst b/docs/report/vpp_performance_tests/csit_release_notes.rst
index 52d2690d26..16a7db38e6 100644
--- a/docs/report/vpp_performance_tests/csit_release_notes.rst
+++ b/docs/report/vpp_performance_tests/csit_release_notes.rst
@@ -16,6 +16,10 @@ Changes in |csit-release|
      :ref:`vpp_compare_current_vs_previous_release` and
      :ref:`vpp_known_issues`.
 
+   - **GENEVE tests**: Added VPP performance tests for GENEVE tunnels.
+
+     - See :ref:`geneve_methodology` for more details.
+
    - **NAT44 tests**: Adapted existing and added new tests.
 
      - Refactored NAT44 deterministic mode (nat44det) tests to use separate
diff --git a/docs/report/vpp_performance_tests/overview.rst b/docs/report/vpp_performance_tests/overview.rst
index 2098216f11..9647edeabd 100644
--- a/docs/report/vpp_performance_tests/overview.rst
+++ b/docs/report/vpp_performance_tests/overview.rst
@@ -286,6 +286,8 @@ performance tested across a range of NIC drivers and NIC models:
 | ADL                   | IPv4 and IPv6 routing with ADL address       |
 |                       | security.                                    |
 +-----------------------+----------------------------------------------+
+| GENEVE                | GENEVE tunnels for IPv4 routing.             |
++-----------------------+----------------------------------------------+
 | IPv4                  | IPv4 routing.                                |
 +-----------------------+----------------------------------------------+
 | IPv6                  | IPv6 routing.                                |