[v4] examples/tep_term: deprecate this example
diff mbox series

Message ID 20201026081143.73242-1-xiaoyun.li@intel.com
State Accepted
Delegated to: Thomas Monjalon
Headers show
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  • [v4] examples/tep_term: deprecate this example
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ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-testing success Testing PASS
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Commit Message

Li, Xiaoyun Oct. 26, 2020, 8:11 a.m. UTC
This example sets up a scenario that VXLAN packets can be received
by different PF queues based on VNID and each queue is bound to a VM
with a VNID so that the VM can receive its inner packets.

Usually, OVS is used to do the software encap/decap for VXLAN packets.

And the VXLAN packets offloading can be replaced with flow rules in
testpmd like Chapter "Sample VXLAN flow rules" in Testpmd Application
User Guide.

And this example hasn't been used for a long time.

So deprecate this example.

Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
v4:
 * Rebased to the newest dpdk branch.
v3:
 * Added release note in removed items.
v2:
 * Polished the commit log.
 * Added the doc for testpmd VXLAN flow rules which can replace the
 * offload that this example wanted.
---
 MAINTAINERS                                   |    4 -
 doc/guides/rel_notes/release_20_11.rst        |    2 +
 .../img/tep_termination_arch.svg              | 1400 -----------------
 doc/guides/sample_app_ug/index.rst            |    1 -
 doc/guides/sample_app_ug/tep_termination.rst  |  214 ---
 doc/guides/testpmd_app_ug/testpmd_funcs.rst   |   43 +
 examples/meson.build                          |    2 +-
 examples/tep_termination/Makefile             |   45 -
 examples/tep_termination/main.c               | 1235 ---------------
 examples/tep_termination/main.h               |   93 --
 examples/tep_termination/meson.build          |   16 -
 examples/tep_termination/vxlan.c              |  243 ---
 examples/tep_termination/vxlan.h              |   57 -
 examples/tep_termination/vxlan_setup.c        |  443 ------
 examples/tep_termination/vxlan_setup.h        |   58 -
 15 files changed, 46 insertions(+), 3810 deletions(-)
 delete mode 100644 doc/guides/sample_app_ug/img/tep_termination_arch.svg
 delete mode 100644 doc/guides/sample_app_ug/tep_termination.rst
 delete mode 100644 examples/tep_termination/Makefile
 delete mode 100644 examples/tep_termination/main.c
 delete mode 100644 examples/tep_termination/main.h
 delete mode 100644 examples/tep_termination/meson.build
 delete mode 100644 examples/tep_termination/vxlan.c
 delete mode 100644 examples/tep_termination/vxlan.h
 delete mode 100644 examples/tep_termination/vxlan_setup.c
 delete mode 100644 examples/tep_termination/vxlan_setup.h

Comments

Thomas Monjalon Oct. 29, 2020, 11:43 a.m. UTC | #1
26/10/2020 09:11, Xiaoyun Li:
> This example sets up a scenario that VXLAN packets can be received
> by different PF queues based on VNID and each queue is bound to a VM
> with a VNID so that the VM can receive its inner packets.
> 
> Usually, OVS is used to do the software encap/decap for VXLAN packets.
> 
> And the VXLAN packets offloading can be replaced with flow rules in
> testpmd like Chapter "Sample VXLAN flow rules" in Testpmd Application
> User Guide.
> 
> And this example hasn't been used for a long time.
> 
> So deprecate this example.
> 
> Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
> Acked-by: Thomas Monjalon <thomas@monjalon.net>
> Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
> Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>

Applied, thanks

Patch
diff mbox series

diff --git a/MAINTAINERS b/MAINTAINERS
index 2b1d232f53..5b390d1d84 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1670,10 +1670,6 @@  M: John McNamara <john.mcnamara@intel.com>
 F: examples/skeleton/
 F: doc/guides/sample_app_ug/skeleton.rst
 
-TEP termination example
-M: Xiaoyun Li <xiaoyun.li@intel.com>
-F: examples/tep_termination/
-
 VMDq examples
 F: examples/vmdq/
 F: doc/guides/sample_app_ug/vmdq_forwarding.rst
diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst
index d8ac359e51..7d8f40c100 100644
--- a/doc/guides/rel_notes/release_20_11.rst
+++ b/doc/guides/rel_notes/release_20_11.rst
@@ -369,6 +369,8 @@  Removed Items
 
 * Removed Python 2 support since it was EOL'd in January 2020.
 
+* Removed TEP termination sample application.
+
 API Changes
 -----------
 
diff --git a/doc/guides/sample_app_ug/img/tep_termination_arch.svg b/doc/guides/sample_app_ug/img/tep_termination_arch.svg
deleted file mode 100644
index 54f1655cdc..0000000000
--- a/doc/guides/sample_app_ug/img/tep_termination_arch.svg
+++ /dev/null
@@ -1,1400 +0,0 @@ 
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diff --git a/doc/guides/sample_app_ug/index.rst b/doc/guides/sample_app_ug/index.rst
index affa9c574c..ef66e23bba 100644
--- a/doc/guides/sample_app_ug/index.rst
+++ b/doc/guides/sample_app_ug/index.rst
@@ -51,7 +51,6 @@  Sample Applications User Guides
     eventdev_pipeline
     dist_app
     vm_power_management
-    tep_termination
     ptpclient
     performance_thread
     fips_validation
diff --git a/doc/guides/sample_app_ug/tep_termination.rst b/doc/guides/sample_app_ug/tep_termination.rst
deleted file mode 100644
index 86ced036ce..0000000000
--- a/doc/guides/sample_app_ug/tep_termination.rst
+++ /dev/null
@@ -1,214 +0,0 @@ 
-..  SPDX-License-Identifier: BSD-3-Clause
-    Copyright(c) 2010-2015 Intel Corporation.
-
-TEP termination Sample Application
-==================================
-
-The TEP (Tunnel End point) termination sample application simulates a VXLAN
-Tunnel Endpoint (VTEP) termination in DPDK, which is used to demonstrate
-the offload and filtering capabilities of Intel® XL710 10/40 Gigabit Ethernet
-Controller for VXLAN packet.
-This sample uses the basic virtio devices management mechanism from vhost example,
-and also uses the us-vHost interface and tunnel filtering mechanism to direct
-a specified traffic to a specific VM.
-In addition, this sample is also designed to show how tunneling protocols can be handled.
-
-Background
-----------
-
-With virtualization, overlay networks allow a network structure to be built
-or imposed across physical nodes which is abstracted away from the actual
-underlining physical network connections.
-This allows network isolation, QOS, etc to be provided on a per client basis.
-
-.. _figure_overlay_networking:
-
-.. figure:: img/overlay_networking.*
-
-   Overlay Networking.
-
-In a typical setup, the network overlay tunnel is terminated at the Virtual/Tunnel End Point (VEP/TEP).
-The TEP is normally located at the physical host level ideally in the software switch.
-Due to processing constraints and the inevitable bottleneck that the switch
-becomes, the ability to offload overlay support features becomes an important requirement.
-Intel® XL710 10/40 Gigabit Ethernet network card provides hardware filtering
-and offload capabilities to support overlay networks implementations such as MAC in UDP and MAC in GRE.
-
-Sample Code Overview
---------------------
-
-The DPDK TEP termination sample code demonstrates the offload and filtering
-capabilities of Intel® XL710 10/40 Gigabit Ethernet Controller for VXLAN packet.
-
-The sample code is based on vhost library.
-The vhost library is developed for user space Ethernet switch to easily integrate with vhost functionality.
-
-The sample will support the followings:
-
-*   Tunneling packet recognition.
-
-*   The port of UDP tunneling is configurable
-
-*   Directing incoming traffic to the correct queue based on the tunnel filter type.
-    The supported filter type are listed below.
-
-    * Inner MAC and VLAN and tenant ID
-
-    * Inner MAC and tenant ID, and Outer MAC
-
-    * Inner MAC and tenant ID
-
-    The tenant ID will be assigned from a static internal table based on the us-vhost device ID.
-    Each device will receive a unique device ID.
-    The inner MAC will be learned by the first packet transmitted from a device.
-
-*   Decapsulation of RX VXLAN traffic. This is a software only operation.
-
-*   Encapsulation of TX VXLAN traffic. This is a software only operation.
-
-*   Inner IP and inner L4 checksum offload.
-
-*   TSO offload support for tunneling packet.
-
-The following figure shows the framework of the TEP termination sample
-application based on DPDK vhost lib.
-
-.. _figure_tep_termination_arch:
-
-.. figure:: img/tep_termination_arch.*
-
-   TEP termination Framework Overview
-
-Supported Distributions
------------------------
-
-The example in this section have been validated with the following distributions:
-
-*   Fedora* 18
-
-*   Fedora* 19
-
-*   Fedora* 20
-
-
-Running the Sample Code
------------------------
-
-Run the tep_termination sample code:
-
-.. code-block:: console
-
-    user@target:~$ ./<build_dir>/examples/dpdk-tep_termination -l 0-3 -n 4 --huge-dir /mnt/huge --
-                    -p 0x1 --dev-basename tep-termination --nb-devices 4
-                    --udp-port 4789 --filter-type 1
-
-.. note::
-
-    Please note the huge-dir parameter instructs the DPDK to allocate its memory from the 2 MB page hugetlbfs.
-
-Parameters
-~~~~~~~~~~
-
-**The same parameters with the vhost sample.**
-
-Refer to :ref:`vhost_app_parameters` for detailed explanation.
-
-**Number of Devices.**
-
-The nb-devices option specifies the number of virtIO device.
-The default value is 2.
-
-.. code-block:: console
-
-    user@target:~$ ./<build_dir>/examples/dpdk-tep_termination -l 0-3 -n 4 --huge-dir /mnt/huge --
-                    --nb-devices 2
-
-**Tunneling UDP port.**
-
-The udp-port option is used to specify the destination UDP number for UDP tunneling packet.
-The default value is 4789.
-
-.. code-block:: console
-
-    user@target:~$ ./<build_dir>/examples/dpdk-tep_termination -l 0-3 -n 4 --huge-dir /mnt/huge --
-                    --nb-devices 2 --udp-port 4789
-
-**Filter Type.**
-
-The filter-type option is used to specify which filter type is used to
-filter UDP tunneling packet to a specified queue.
-The default value is 1, which means the filter type of inner MAC and tenant ID is used.
-
-.. code-block:: console
-
-    user@target:~$ ./<build_dir>/examples/dpdk-tep_termination -l 0-3 -n 4 --huge-dir /mnt/huge --
-                --nb-devices 2 --udp-port 4789 --filter-type 1
-
-**TX Checksum.**
-
-The tx-checksum option is used to enable or disable the inner header checksum offload.
-The default value is 0, which means the checksum offload is disabled.
-
-.. code-block:: console
-
-    user@target:~$ ./<build_dir>/examples/dpdk-tep_termination -l 0-3 -n 4 --huge-dir /mnt/huge --
-                --nb-devices 2 --tx-checksum
-
-**TCP segment size.**
-
-The tso-segsz option specifies the TCP segment size for TSO offload for tunneling packet.
-The default value is 0, which means TSO offload is disabled.
-
-.. code-block:: console
-
-    user@target:~$ ./<build_dir>/examples/dpdk-tep_termination -l 0-3 -n 4 --huge-dir /mnt/huge --
-                --tx-checksum --tso-segsz 800
-
-**Decapsulation option.**
-
-The decap option is used to enable or disable decapsulation operation for received VXLAN packet.
-The default value is 1.
-
-.. code-block:: console
-
-    user@target:~$ ./<build_dir>/examples/dpdk-tep_termination -l 0-3 -n 4 --huge-dir /mnt/huge --
-                --nb-devices 4 --udp-port 4789 --decap 1
-
-**Encapsulation option.**
-
-The encap option is used to enable or disable encapsulation operation for transmitted packet.
-The default value is 1.
-
-.. code-block:: console
-
-    user@target:~$ ./<build_dir>/examples/dpdk-tep_termination -l 0-3 -n 4 --huge-dir /mnt/huge --
-                --nb-devices 4 --udp-port 4789 --encap 1
-
-
-Running the Virtual Machine (QEMU)
-----------------------------------
-
-Refer to :ref:`vhost_app_run_vm`.
-
-Running DPDK in the Virtual Machine
------------------------------------
-
-Refer to :ref:`vhost_app_run_dpdk_inside_guest`.
-
-Passing Traffic to the Virtual Machine Device
----------------------------------------------
-
-For a virtio-net device to receive traffic, the traffic's Layer 2 header must include
-both the virtio-net device's MAC address.
-The DPDK sample code behaves in a similar manner to a learning switch in that
-it learns the MAC address of the virtio-net devices from the first transmitted packet.
-On learning the MAC address,
-the DPDK vhost sample code prints a message with the MAC address and tenant ID virtio-net device.
-For example:
-
-.. code-block:: console
-
-    DATA: (0) MAC_ADDRESS cc:bb:bb:bb:bb:bb and VNI 1000 registered
-
-The above message indicates that device 0 has been registered with MAC address cc:bb:bb:bb:bb:bb and VNI 1000.
-Any packets received on the NIC with these values are placed on the devices receive queue.
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index c1c2f4086c..86aaf8fe0c 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -4933,6 +4933,49 @@  Validate and create a QinQ rule on port 0 to steer traffic to a queue on the hos
    0       0       0       i-      ETH VLAN VLAN=>VF QUEUE
    1       0       0       i-      ETH VLAN VLAN=>PF QUEUE
 
+Sample VXLAN flow rules
+~~~~~~~~~~~~~~~~~~~~~~~
+
+Before creating VXLAN rule(s), the UDP port should be added for VXLAN packet
+filter on a port::
+
+  testpmd> rx_vxlan_port add 4789 0
+
+Create VXLAN rules on port 0 to steer traffic to PF queues.
+
+::
+
+  testpmd> flow create 0 ingress pattern eth / ipv4 / udp / vxlan /
+         eth dst is 00:11:22:33:44:55 / end actions pf / queue index 1 / end
+  Flow rule #0 created
+
+  testpmd> flow create 0 ingress pattern eth / ipv4 / udp / vxlan vni is 3 /
+         eth dst is 00:11:22:33:44:55 / end actions pf / queue index 2 / end
+  Flow rule #1 created
+
+  testpmd> flow create 0 ingress pattern eth / ipv4 / udp / vxlan /
+         eth dst is 00:11:22:33:44:55 / vlan tci is 10 / end actions pf /
+         queue index 3 / end
+  Flow rule #2 created
+
+  testpmd> flow create 0 ingress pattern eth / ipv4 / udp / vxlan vni is 5 /
+         eth dst is 00:11:22:33:44:55 / vlan tci is 20 / end actions pf /
+         queue index 4 / end
+  Flow rule #3 created
+
+  testpmd> flow create 0 ingress pattern eth dst is 00:00:00:00:01:00 / ipv4 /
+         udp / vxlan vni is 6 /  eth dst is 00:11:22:33:44:55 / end actions pf /
+         queue index 5 / end
+  Flow rule #4 created
+
+  testpmd> flow list 0
+  ID      Group   Prio    Attr    Rule
+  0       0       0       i-      ETH IPV4 UDP VXLAN ETH => QUEUE
+  1       0       0       i-      ETH IPV4 UDP VXLAN ETH => QUEUE
+  2       0       0       i-      ETH IPV4 UDP VXLAN ETH VLAN => QUEUE
+  3       0       0       i-      ETH IPV4 UDP VXLAN ETH VLAN => QUEUE
+  4       0       0       i-      ETH IPV4 UDP VXLAN ETH => QUEUE
+
 Sample VXLAN encapsulation rule
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
diff --git a/examples/meson.build b/examples/meson.build
index 414ec55cc9..f179955325 100644
--- a/examples/meson.build
+++ b/examples/meson.build
@@ -40,7 +40,7 @@  all_examples = [
 	'server_node_efd/node',
 	'server_node_efd/server',
 	'service_cores',
-	'skeleton', 'tep_termination',
+	'skeleton',
 	'timer', 'vdpa',
 	'vhost', 'vhost_crypto',
 	'vhost_blk', 'vm_power_manager',
diff --git a/examples/tep_termination/Makefile b/examples/tep_termination/Makefile
deleted file mode 100644
index 443bcb190e..0000000000
--- a/examples/tep_termination/Makefile
+++ /dev/null
@@ -1,45 +0,0 @@ 
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2010-2015 Intel Corporation
-
-# binary name
-APP = tep_termination
-
-# all source are stored in SRCS-y
-SRCS-y := main.c vxlan_setup.c vxlan.c
-
-# Build using pkg-config variables if possible
-ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
-$(error "no installation of DPDK found")
-endif
-
-all: shared
-.PHONY: shared static
-shared: build/$(APP)-shared
-	ln -sf $(APP)-shared build/$(APP)
-static: build/$(APP)-static
-	ln -sf $(APP)-static build/$(APP)
-
-LDFLAGS += -pthread
-
-PKGCONF ?= pkg-config
-
-PC_FILE := $(shell $(PKGCONF) --path libdpdk 2>/dev/null)
-CFLAGS += -O3 $(shell $(PKGCONF) --cflags libdpdk)
-LDFLAGS_SHARED = $(shell $(PKGCONF) --libs libdpdk)
-LDFLAGS_STATIC = $(shell $(PKGCONF) --static --libs libdpdk)
-
-CFLAGS += -Wno-deprecated-declarations
-
-build/$(APP)-shared: $(SRCS-y) Makefile $(PC_FILE) | build
-	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_SHARED)
-
-build/$(APP)-static: $(SRCS-y) Makefile $(PC_FILE) | build
-	$(CC) $(CFLAGS) $(SRCS-y) -o $@ $(LDFLAGS) $(LDFLAGS_STATIC)
-
-build:
-	@mkdir -p $@
-
-.PHONY: clean
-clean:
-	rm -f build/$(APP) build/$(APP)-static build/$(APP)-shared
-	test -d build && rmdir -p build || true
diff --git a/examples/tep_termination/main.c b/examples/tep_termination/main.c
deleted file mode 100644
index 15bf8bbf7f..0000000000
--- a/examples/tep_termination/main.c
+++ /dev/null
@@ -1,1235 +0,0 @@ 
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2015 Intel Corporation
- */
-
-#include <arpa/inet.h>
-#include <getopt.h>
-#include <linux/if_ether.h>
-#include <linux/if_vlan.h>
-#include <linux/virtio_net.h>
-#include <linux/virtio_ring.h>
-#include <signal.h>
-#include <stdint.h>
-#include <sys/eventfd.h>
-#include <sys/param.h>
-#include <unistd.h>
-
-#include <rte_atomic.h>
-#include <rte_cycles.h>
-#include <rte_ethdev.h>
-#include <rte_log.h>
-#include <rte_string_fns.h>
-#include <rte_malloc.h>
-#include <rte_vhost.h>
-#include <rte_pause.h>
-
-#include "main.h"
-#include "vxlan.h"
-#include "vxlan_setup.h"
-
-/* the maximum number of external ports supported */
-#define MAX_SUP_PORTS 1
-
-/**
- * Calculate the number of buffers needed per port
- */
-#define NUM_MBUFS_PER_PORT ((MAX_QUEUES * RTE_TEST_RX_DESC_DEFAULT) +\
-				(nb_switching_cores * MAX_PKT_BURST) +\
-				(nb_switching_cores * \
-				RTE_TEST_TX_DESC_DEFAULT) +\
-				(nb_switching_cores * MBUF_CACHE_SIZE))
-
-#define MBUF_CACHE_SIZE 128
-#define MBUF_DATA_SIZE RTE_MBUF_DEFAULT_BUF_SIZE
-
-#define MAX_PKT_BURST 32	/* Max burst size for RX/TX */
-#define BURST_TX_DRAIN_US 100	/* TX drain every ~100us */
-
-/* Defines how long we wait between retries on RX */
-#define BURST_RX_WAIT_US 15
-
-#define BURST_RX_RETRIES 4	/* Number of retries on RX. */
-
-#define JUMBO_FRAME_MAX_SIZE    0x2600
-
-/* Config_core_flag status definitions. */
-#define REQUEST_DEV_REMOVAL 1
-#define ACK_DEV_REMOVAL     0
-
-/* Configurable number of RX/TX ring descriptors */
-#define RTE_TEST_RX_DESC_DEFAULT 1024
-#define RTE_TEST_TX_DESC_DEFAULT 512
-
-/* Get first 4 bytes in mbuf headroom. */
-#define MBUF_HEADROOM_UINT32(mbuf) (*(uint32_t *)((uint8_t *)(mbuf) \
-		+ sizeof(struct rte_mbuf)))
-
-#define INVALID_PORT_ID 0xFFFF
-
-/* Maximum character device basename size. */
-#define MAX_BASENAME_SZ 20
-
-/* Maximum long option length for option parsing. */
-#define MAX_LONG_OPT_SZ 64
-
-/* Used to compare MAC addresses. */
-#define MAC_ADDR_CMP 0xFFFFFFFFFFFFULL
-
-#define CMD_LINE_OPT_NB_DEVICES "nb-devices"
-#define CMD_LINE_OPT_UDP_PORT "udp-port"
-#define CMD_LINE_OPT_TX_CHECKSUM "tx-checksum"
-#define CMD_LINE_OPT_TSO_SEGSZ "tso-segsz"
-#define CMD_LINE_OPT_FILTER_TYPE "filter-type"
-#define CMD_LINE_OPT_ENCAP "encap"
-#define CMD_LINE_OPT_DECAP "decap"
-#define CMD_LINE_OPT_RX_RETRY "rx-retry"
-#define CMD_LINE_OPT_RX_RETRY_DELAY "rx-retry-delay"
-#define CMD_LINE_OPT_RX_RETRY_NUM "rx-retry-num"
-#define CMD_LINE_OPT_STATS "stats"
-#define CMD_LINE_OPT_DEV_BASENAME "dev-basename"
-
-/* mask of enabled ports */
-static uint32_t enabled_port_mask;
-
-/*Number of switching cores enabled*/
-static uint32_t nb_switching_cores;
-
-/* number of devices/queues to support*/
-uint16_t nb_devices = 2;
-
-/* max ring descriptor, ixgbe, i40e, e1000 all are 4096. */
-#define MAX_RING_DESC 4096
-
-struct vpool {
-	struct rte_mempool *pool;
-	struct rte_ring *ring;
-	uint32_t buf_size;
-} vpool_array[MAX_QUEUES+MAX_QUEUES];
-
-/* UDP tunneling port */
-uint16_t udp_port = 4789;
-
-/* enable/disable inner TX checksum */
-uint8_t tx_checksum = 0;
-
-/* TCP segment size */
-uint16_t tso_segsz = 0;
-
-/* enable/disable decapsulation */
-uint8_t rx_decap = 1;
-
-/* enable/disable encapsulation */
-uint8_t tx_encap = 1;
-
-/* RX filter type for tunneling packet */
-uint8_t filter_idx = 1;
-
-/* overlay packet operation */
-struct ol_switch_ops overlay_options = {
-	.port_configure = vxlan_port_init,
-	.tunnel_setup = vxlan_link,
-	.tunnel_destroy = vxlan_unlink,
-	.tx_handle = vxlan_tx_pkts,
-	.rx_handle = vxlan_rx_pkts,
-	.param_handle = NULL,
-};
-
-/* Enable stats. */
-uint32_t enable_stats = 0;
-/* Enable retries on RX. */
-static uint32_t enable_retry = 1;
-/* Specify timeout (in useconds) between retries on RX. */
-static uint32_t burst_rx_delay_time = BURST_RX_WAIT_US;
-/* Specify the number of retries on RX. */
-static uint32_t burst_rx_retry_num = BURST_RX_RETRIES;
-
-/* Character device basename. Can be set by user. */
-static char dev_basename[MAX_BASENAME_SZ] = "vhost-net";
-
-static unsigned lcore_ids[RTE_MAX_LCORE];
-uint16_t ports[RTE_MAX_ETHPORTS];
-
-static unsigned nb_ports; /**< The number of ports specified in command line */
-
-/* ethernet addresses of ports */
-struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
-
-/* heads for the main used and free linked lists for the data path. */
-static struct virtio_net_data_ll *ll_root_used;
-static struct virtio_net_data_ll *ll_root_free;
-
-/**
- * Array of data core structures containing information on
- * individual core linked lists.
- */
-static struct lcore_info lcore_info[RTE_MAX_LCORE];
-
-/* Used for queueing bursts of TX packets. */
-struct mbuf_table {
-	unsigned len;
-	unsigned txq_id;
-	struct rte_mbuf *m_table[MAX_PKT_BURST];
-};
-
-/* TX queue for each data core. */
-struct mbuf_table lcore_tx_queue[RTE_MAX_LCORE];
-
-struct device_statistics dev_statistics[MAX_DEVICES];
-
-/**
- * Set character device basename.
- */
-static int
-us_vhost_parse_basename(const char *q_arg)
-{
-	/* parse number string */
-	if (strlen(q_arg) >= MAX_BASENAME_SZ)
-		return -1;
-	else
-		strlcpy((char *)&dev_basename, q_arg, MAX_BASENAME_SZ);
-
-	return 0;
-}
-
-/**
- * Parse the portmask provided at run time.
- */
-static int
-parse_portmask(const char *portmask)
-{
-	char *end = NULL;
-	unsigned long pm;
-
-	/* parse hexadecimal string */
-	pm = strtoul(portmask, &end, 16);
-	if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
-		return 0;
-
-	return pm;
-}
-
-/**
- * Parse num options at run time.
- */
-static int
-parse_num_opt(const char *q_arg, uint32_t max_valid_value)
-{
-	char *end = NULL;
-	unsigned long num;
-
-	/* parse unsigned int string */
-	num = strtoul(q_arg, &end, 10);
-	if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
-		return -1;
-
-	if (num > max_valid_value)
-		return -1;
-
-	return num;
-}
-
-/**
- * Display usage
- */
-static void
-tep_termination_usage(const char *prgname)
-{
-	RTE_LOG(INFO, VHOST_CONFIG, "%s [EAL options] -- -p PORTMASK\n"
-	"               --udp-port: UDP destination port for VXLAN packet\n"
-	"		--nb-devices[1-64]: The number of virtIO device\n"
-	"               --tx-checksum [0|1]: inner Tx checksum offload\n"
-	"               --tso-segsz [0-N]: TCP segment size\n"
-	"               --decap [0|1]: tunneling packet decapsulation\n"
-	"               --encap [0|1]: tunneling packet encapsulation\n"
-	"               --filter-type[1-3]: filter type for tunneling packet\n"
-	"                   1: Inner MAC and tenent ID\n"
-	"                   2: Inner MAC and VLAN, and tenent ID\n"
-	"                   3: Outer MAC, Inner MAC and tenent ID\n"
-	"		-p PORTMASK: Set mask for ports to be used by application\n"
-	"		--rx-retry [0|1]: disable/enable(default) retries on rx."
-	"		 Enable retry if destintation queue is full\n"
-	"		--rx-retry-delay [0-N]: timeout(in usecond) between retries on RX."
-	"		 This makes effect only if retries on rx enabled\n"
-	"		--rx-retry-num [0-N]: the number of retries on rx."
-	"		 This makes effect only if retries on rx enabled\n"
-	"		--stats [0-N]: 0: Disable stats, N: Time in seconds to print stats\n"
-	"		--dev-basename: The basename to be used for the character device.\n",
-	       prgname);
-}
-
-/**
- * Parse the arguments given in the command line of the application.
- */
-static int
-tep_termination_parse_args(int argc, char **argv)
-{
-	int opt, ret;
-	int option_index;
-	unsigned i;
-	const char *prgname = argv[0];
-	static struct option long_option[] = {
-		{CMD_LINE_OPT_NB_DEVICES, required_argument, NULL, 0},
-		{CMD_LINE_OPT_UDP_PORT, required_argument, NULL, 0},
-		{CMD_LINE_OPT_TX_CHECKSUM, required_argument, NULL, 0},
-		{CMD_LINE_OPT_TSO_SEGSZ, required_argument, NULL, 0},
-		{CMD_LINE_OPT_DECAP, required_argument, NULL, 0},
-		{CMD_LINE_OPT_ENCAP, required_argument, NULL, 0},
-		{CMD_LINE_OPT_FILTER_TYPE, required_argument, NULL, 0},
-		{CMD_LINE_OPT_RX_RETRY, required_argument, NULL, 0},
-		{CMD_LINE_OPT_RX_RETRY_DELAY, required_argument, NULL, 0},
-		{CMD_LINE_OPT_RX_RETRY_NUM, required_argument, NULL, 0},
-		{CMD_LINE_OPT_STATS, required_argument, NULL, 0},
-		{CMD_LINE_OPT_DEV_BASENAME, required_argument, NULL, 0},
-		{NULL, 0, 0, 0},
-	};
-
-	/* Parse command line */
-	while ((opt = getopt_long(argc, argv, "p:",
-			long_option, &option_index)) != EOF) {
-		switch (opt) {
-		/* Portmask */
-		case 'p':
-			enabled_port_mask = parse_portmask(optarg);
-			if (enabled_port_mask == 0) {
-				RTE_LOG(INFO, VHOST_CONFIG,
-					"Invalid portmask\n");
-				tep_termination_usage(prgname);
-				return -1;
-			}
-			break;
-		case 0:
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_NB_DEVICES,
-				sizeof(CMD_LINE_OPT_NB_DEVICES))) {
-				ret = parse_num_opt(optarg, MAX_DEVICES);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-					"Invalid argument for nb-devices [0-%d]\n",
-					MAX_DEVICES);
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					nb_devices = ret;
-			}
-
-			/* Enable/disable retries on RX. */
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_RX_RETRY,
-				sizeof(CMD_LINE_OPT_RX_RETRY))) {
-				ret = parse_num_opt(optarg, 1);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for rx-retry [0|1]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					enable_retry = ret;
-			}
-
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_TSO_SEGSZ,
-				sizeof(CMD_LINE_OPT_TSO_SEGSZ))) {
-				ret = parse_num_opt(optarg, INT16_MAX);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for TCP segment size [0-N]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					tso_segsz = ret;
-			}
-
-			if (!strncmp(long_option[option_index].name,
-					CMD_LINE_OPT_UDP_PORT,
-					sizeof(CMD_LINE_OPT_UDP_PORT))) {
-				ret = parse_num_opt(optarg, INT16_MAX);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for UDP port [0-N]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					udp_port = ret;
-			}
-
-			/* Specify the retries delay time (in useconds) on RX.*/
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_RX_RETRY_DELAY,
-				sizeof(CMD_LINE_OPT_RX_RETRY_DELAY))) {
-				ret = parse_num_opt(optarg, INT32_MAX);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for rx-retry-delay [0-N]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					burst_rx_delay_time = ret;
-			}
-
-			/* Specify the retries number on RX. */
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_RX_RETRY_NUM,
-				sizeof(CMD_LINE_OPT_RX_RETRY_NUM))) {
-				ret = parse_num_opt(optarg, INT32_MAX);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for rx-retry-num [0-N]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					burst_rx_retry_num = ret;
-			}
-
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_TX_CHECKSUM,
-				sizeof(CMD_LINE_OPT_TX_CHECKSUM))) {
-				ret = parse_num_opt(optarg, 1);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for tx-checksum [0|1]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					tx_checksum = ret;
-			}
-
-			if (!strncmp(long_option[option_index].name,
-					CMD_LINE_OPT_FILTER_TYPE,
-					sizeof(CMD_LINE_OPT_FILTER_TYPE))) {
-				ret = parse_num_opt(optarg, 3);
-				if ((ret == -1) || (ret == 0)) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for filter type [1-3]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					filter_idx = ret - 1;
-			}
-
-			/* Enable/disable encapsulation on RX. */
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_DECAP,
-				sizeof(CMD_LINE_OPT_DECAP))) {
-				ret = parse_num_opt(optarg, 1);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for decap [0|1]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					rx_decap = ret;
-			}
-
-			/* Enable/disable encapsulation on TX. */
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_ENCAP,
-				sizeof(CMD_LINE_OPT_ENCAP))) {
-				ret = parse_num_opt(optarg, 1);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for encap [0|1]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					tx_encap = ret;
-			}
-
-			/* Enable/disable stats. */
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_STATS,
-				sizeof(CMD_LINE_OPT_STATS))) {
-				ret = parse_num_opt(optarg, INT32_MAX);
-				if (ret == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-							"Invalid argument for stats [0..N]\n");
-					tep_termination_usage(prgname);
-					return -1;
-				} else
-					enable_stats = ret;
-			}
-
-			/* Set character device basename. */
-			if (!strncmp(long_option[option_index].name,
-				CMD_LINE_OPT_DEV_BASENAME,
-				sizeof(CMD_LINE_OPT_DEV_BASENAME))) {
-				if (us_vhost_parse_basename(optarg) == -1) {
-					RTE_LOG(INFO, VHOST_CONFIG,
-						"Invalid argument for character "
-						"device basename (Max %d characters)\n",
-						MAX_BASENAME_SZ);
-					tep_termination_usage(prgname);
-					return -1;
-				}
-			}
-
-			break;
-
-			/* Invalid option - print options. */
-		default:
-			tep_termination_usage(prgname);
-			return -1;
-		}
-	}
-
-	for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
-		if (enabled_port_mask & (1 << i))
-			ports[nb_ports++] = (uint8_t)i;
-	}
-
-	if ((nb_ports ==  0) || (nb_ports > MAX_SUP_PORTS)) {
-		RTE_LOG(INFO, VHOST_PORT, "Current enabled port number is %u,"
-			"but only %u port can be enabled\n", nb_ports,
-			MAX_SUP_PORTS);
-		return -1;
-	}
-
-	return 0;
-}
-
-/**
- * Update the global var NB_PORTS and array PORTS
- * according to system ports number and return valid ports number
- */
-static unsigned
-check_ports_num(unsigned max_nb_ports)
-{
-	unsigned valid_nb_ports = nb_ports;
-	unsigned portid;
-
-	if (nb_ports > max_nb_ports) {
-		RTE_LOG(INFO, VHOST_PORT, "\nSpecified port number(%u) "
-			" exceeds total system port number(%u)\n",
-			nb_ports, max_nb_ports);
-		nb_ports = max_nb_ports;
-	}
-
-	for (portid = 0; portid < nb_ports; portid++) {
-		if (!rte_eth_dev_is_valid_port(ports[portid])) {
-			RTE_LOG(INFO, VHOST_PORT,
-				"\nSpecified port ID(%u) is not valid\n",
-				ports[portid]);
-			ports[portid] = INVALID_PORT_ID;
-			valid_nb_ports--;
-		}
-	}
-	return valid_nb_ports;
-}
-
-/**
- * This function routes the TX packet to the correct interface. This may be a local device
- * or the physical port.
- */
-static __rte_always_inline void
-virtio_tx_route(struct vhost_dev *vdev, struct rte_mbuf *m)
-{
-	struct mbuf_table *tx_q;
-	struct rte_mbuf **m_table;
-	unsigned len, ret = 0;
-	const uint16_t lcore_id = rte_lcore_id();
-
-	RTE_LOG_DP(DEBUG, VHOST_DATA, "(%d) TX: MAC address is external\n",
-		vdev->vid);
-
-	/* Add packet to the port tx queue */
-	tx_q = &lcore_tx_queue[lcore_id];
-	len = tx_q->len;
-
-	tx_q->m_table[len] = m;
-	len++;
-	if (enable_stats) {
-		dev_statistics[vdev->vid].tx_total++;
-		dev_statistics[vdev->vid].tx++;
-	}
-
-	if (unlikely(len == MAX_PKT_BURST)) {
-		m_table = (struct rte_mbuf **)tx_q->m_table;
-		ret = overlay_options.tx_handle(ports[0],
-			(uint16_t)tx_q->txq_id, m_table,
-			(uint16_t)tx_q->len);
-
-		/* Free any buffers not handled by TX and update
-		 * the port stats.
-		 */
-		if (unlikely(ret < len)) {
-			do {
-				rte_pktmbuf_free(m_table[ret]);
-			} while (++ret < len);
-		}
-
-		len = 0;
-	}
-
-	tx_q->len = len;
-	return;
-}
-
-/**
- * This function is called by each data core. It handles all
- * RX/TX registered with the core. For TX the specific lcore
- * linked list is used. For RX, MAC addresses are compared
- * with all devices in the main linked list.
- */
-static int
-switch_worker(__rte_unused void *arg)
-{
-	struct rte_mempool *mbuf_pool = arg;
-	struct vhost_dev *vdev = NULL;
-	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
-	struct virtio_net_data_ll *dev_ll;
-	struct mbuf_table *tx_q;
-	volatile struct lcore_ll_info *lcore_ll;
-	const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1)
-					/ US_PER_S * BURST_TX_DRAIN_US;
-	uint64_t prev_tsc, diff_tsc, cur_tsc, ret_count = 0;
-	unsigned i, ret = 0;
-	const uint16_t lcore_id = rte_lcore_id();
-	const uint16_t num_cores = (uint16_t)rte_lcore_count();
-	uint16_t rx_count = 0;
-	uint16_t tx_count;
-	uint32_t retry = 0;
-
-	RTE_LOG(INFO, VHOST_DATA, "Procesing on Core %u started\n", lcore_id);
-	lcore_ll = lcore_info[lcore_id].lcore_ll;
-	prev_tsc = 0;
-
-	tx_q = &lcore_tx_queue[lcore_id];
-	for (i = 0; i < num_cores; i++) {
-		if (lcore_ids[i] == lcore_id) {
-			tx_q->txq_id = i;
-			break;
-		}
-	}
-
-	while (1) {
-		cur_tsc = rte_rdtsc();
-		/*
-		 * TX burst queue drain
-		 */
-		diff_tsc = cur_tsc - prev_tsc;
-		if (unlikely(diff_tsc > drain_tsc)) {
-
-			if (tx_q->len) {
-				RTE_LOG_DP(DEBUG, VHOST_DATA, "TX queue drained after "
-					"timeout with burst size %u\n",
-					tx_q->len);
-				ret = overlay_options.tx_handle(ports[0],
-					(uint16_t)tx_q->txq_id,
-					(struct rte_mbuf **)tx_q->m_table,
-					(uint16_t)tx_q->len);
-				if (unlikely(ret < tx_q->len)) {
-					do {
-						rte_pktmbuf_free(tx_q->m_table[ret]);
-					} while (++ret < tx_q->len);
-				}
-
-				tx_q->len = 0;
-			}
-
-			prev_tsc = cur_tsc;
-
-		}
-
-		rte_prefetch0(lcore_ll->ll_root_used);
-
-		/**
-		 * Inform the configuration core that we have exited
-		 * the linked list and that no devices are
-		 * in use if requested.
-		 */
-		if (lcore_ll->dev_removal_flag == REQUEST_DEV_REMOVAL)
-			lcore_ll->dev_removal_flag = ACK_DEV_REMOVAL;
-
-		/*
-		 * Process devices
-		 */
-		dev_ll = lcore_ll->ll_root_used;
-
-		while (dev_ll != NULL) {
-			vdev = dev_ll->vdev;
-
-			if (unlikely(vdev->remove)) {
-				dev_ll = dev_ll->next;
-				overlay_options.tunnel_destroy(vdev);
-				vdev->ready = DEVICE_SAFE_REMOVE;
-				continue;
-			}
-			if (likely(vdev->ready == DEVICE_RX)) {
-				/* Handle guest RX */
-				rx_count = rte_eth_rx_burst(ports[0],
-					vdev->rx_q, pkts_burst, MAX_PKT_BURST);
-
-				if (rx_count) {
-					/*
-					* Retry is enabled and the queue is
-					* full then we wait and retry to
-					* avoid packet loss. Here MAX_PKT_BURST
-					* must be less than virtio queue size
-					*/
-					if (enable_retry && unlikely(rx_count >
-						rte_vhost_avail_entries(vdev->vid, VIRTIO_RXQ))) {
-						for (retry = 0; retry < burst_rx_retry_num;
-							retry++) {
-							rte_delay_us(burst_rx_delay_time);
-							if (rx_count <= rte_vhost_avail_entries(vdev->vid, VIRTIO_RXQ))
-								break;
-						}
-					}
-
-					ret_count = overlay_options.rx_handle(vdev->vid, pkts_burst, rx_count);
-					if (enable_stats) {
-						rte_atomic64_add(
-						&dev_statistics[vdev->vid].rx_total_atomic,
-						rx_count);
-						rte_atomic64_add(
-						&dev_statistics[vdev->vid].rx_atomic, ret_count);
-					}
-					while (likely(rx_count)) {
-						rx_count--;
-						rte_pktmbuf_free(pkts_burst[rx_count]);
-					}
-
-				}
-			}
-
-			if (likely(!vdev->remove)) {
-				/* Handle guest TX*/
-				tx_count = rte_vhost_dequeue_burst(vdev->vid,
-						VIRTIO_TXQ, mbuf_pool,
-						pkts_burst, MAX_PKT_BURST);
-				/* If this is the first received packet we need to learn the MAC */
-				if (unlikely(vdev->ready == DEVICE_MAC_LEARNING) && tx_count) {
-					if (vdev->remove ||
-						(overlay_options.tunnel_setup(vdev, pkts_burst[0]) == -1)) {
-						while (tx_count)
-							rte_pktmbuf_free(pkts_burst[--tx_count]);
-					}
-				}
-				while (tx_count)
-					virtio_tx_route(vdev, pkts_burst[--tx_count]);
-			}
-
-			/* move to the next device in the list */
-			dev_ll = dev_ll->next;
-		}
-	}
-
-	return 0;
-}
-
-/**
- * Add an entry to a used linked list. A free entry must first be found
- * in the free linked list using get_data_ll_free_entry();
- */
-static void
-add_data_ll_entry(struct virtio_net_data_ll **ll_root_addr,
-	struct virtio_net_data_ll *ll_dev)
-{
-	struct virtio_net_data_ll *ll = *ll_root_addr;
-
-	/* Set next as NULL and use a compiler barrier to avoid reordering. */
-	ll_dev->next = NULL;
-	rte_compiler_barrier();
-
-	/* If ll == NULL then this is the first device. */
-	if (ll) {
-		/* Increment to the tail of the linked list. */
-		while (ll->next != NULL)
-			ll = ll->next;
-
-		ll->next = ll_dev;
-	} else {
-		*ll_root_addr = ll_dev;
-	}
-}
-
-/**
- * Remove an entry from a used linked list. The entry must then be added to
- * the free linked list using put_data_ll_free_entry().
- */
-static void
-rm_data_ll_entry(struct virtio_net_data_ll **ll_root_addr,
-	struct virtio_net_data_ll *ll_dev,
-	struct virtio_net_data_ll *ll_dev_last)
-{
-	struct virtio_net_data_ll *ll = *ll_root_addr;
-
-	if (unlikely((ll == NULL) || (ll_dev == NULL)))
-		return;
-
-	if (ll_dev == ll)
-		*ll_root_addr = ll_dev->next;
-	else
-		if (likely(ll_dev_last != NULL))
-			ll_dev_last->next = ll_dev->next;
-		else
-			RTE_LOG(ERR, VHOST_CONFIG,
-				"Remove entry form ll failed.\n");
-}
-
-/**
- * Find and return an entry from the free linked list.
- */
-static struct virtio_net_data_ll *
-get_data_ll_free_entry(struct virtio_net_data_ll **ll_root_addr)
-{
-	struct virtio_net_data_ll *ll_free = *ll_root_addr;
-	struct virtio_net_data_ll *ll_dev;
-
-	if (ll_free == NULL)
-		return NULL;
-
-	ll_dev = ll_free;
-	*ll_root_addr = ll_free->next;
-
-	return ll_dev;
-}
-
-/**
- * Place an entry back on to the free linked list.
- */
-static void
-put_data_ll_free_entry(struct virtio_net_data_ll **ll_root_addr,
-	struct virtio_net_data_ll *ll_dev)
-{
-	struct virtio_net_data_ll *ll_free = *ll_root_addr;
-
-	if (ll_dev == NULL)
-		return;
-
-	ll_dev->next = ll_free;
-	*ll_root_addr = ll_dev;
-}
-
-/**
- * Creates a linked list of a given size.
- */
-static struct virtio_net_data_ll *
-alloc_data_ll(uint32_t size)
-{
-	struct virtio_net_data_ll *ll_new;
-	uint32_t i;
-
-	/* Malloc and then chain the linked list. */
-	ll_new = malloc(size * sizeof(struct virtio_net_data_ll));
-	if (ll_new == NULL) {
-		RTE_LOG(ERR, VHOST_CONFIG,
-			"Failed to allocate memory for ll_new.\n");
-		return NULL;
-	}
-
-	for (i = 0; i < size - 1; i++) {
-		ll_new[i].vdev = NULL;
-		ll_new[i].next = &ll_new[i+1];
-	}
-	ll_new[i].next = NULL;
-
-	return ll_new;
-}
-
-/**
- * Create the main linked list along with each individual cores
- * linked list. A used and a free list are created to manage entries.
- */
-static int
-init_data_ll(void)
-{
-	int lcore;
-
-	RTE_LCORE_FOREACH_WORKER(lcore) {
-		lcore_info[lcore].lcore_ll =
-			malloc(sizeof(struct lcore_ll_info));
-		if (lcore_info[lcore].lcore_ll == NULL) {
-			RTE_LOG(ERR, VHOST_CONFIG,
-				"Failed to allocate memory for lcore_ll.\n");
-			return -1;
-		}
-
-		lcore_info[lcore].lcore_ll->device_num = 0;
-		lcore_info[lcore].lcore_ll->dev_removal_flag = ACK_DEV_REMOVAL;
-		lcore_info[lcore].lcore_ll->ll_root_used = NULL;
-		if (nb_devices % nb_switching_cores)
-			lcore_info[lcore].lcore_ll->ll_root_free =
-				alloc_data_ll((nb_devices / nb_switching_cores)
-						+ 1);
-		else
-			lcore_info[lcore].lcore_ll->ll_root_free =
-				alloc_data_ll(nb_devices / nb_switching_cores);
-	}
-
-	/* Allocate devices up to a maximum of MAX_DEVICES. */
-	ll_root_free = alloc_data_ll(MIN((nb_devices), MAX_DEVICES));
-
-	return 0;
-}
-
-/**
- * Remove a device from the specific data core linked list and
- * from the main linked list. Synchonization occurs through the use
- * of the lcore dev_removal_flag.
- */
-static void
-destroy_device(int vid)
-{
-	struct virtio_net_data_ll *ll_lcore_dev_cur;
-	struct virtio_net_data_ll *ll_main_dev_cur;
-	struct virtio_net_data_ll *ll_lcore_dev_last = NULL;
-	struct virtio_net_data_ll *ll_main_dev_last = NULL;
-	struct vhost_dev *vdev = NULL;
-	int lcore;
-
-	ll_main_dev_cur = ll_root_used;
-	while (ll_main_dev_cur != NULL) {
-		if (ll_main_dev_cur->vdev->vid == vid) {
-			vdev = ll_main_dev_cur->vdev;
-			break;
-		}
-	}
-	if (!vdev)
-		return;
-
-	/* set the remove flag. */
-	vdev->remove = 1;
-	while (vdev->ready != DEVICE_SAFE_REMOVE)
-		rte_pause();
-
-	/* Search for entry to be removed from lcore ll */
-	ll_lcore_dev_cur = lcore_info[vdev->coreid].lcore_ll->ll_root_used;
-	while (ll_lcore_dev_cur != NULL) {
-		if (ll_lcore_dev_cur->vdev == vdev) {
-			break;
-		} else {
-			ll_lcore_dev_last = ll_lcore_dev_cur;
-			ll_lcore_dev_cur = ll_lcore_dev_cur->next;
-		}
-	}
-
-	if (ll_lcore_dev_cur == NULL) {
-		RTE_LOG(ERR, VHOST_CONFIG,
-			"(%d) Failed to find the dev to be destroy.\n", vid);
-		return;
-	}
-
-	/* Search for entry to be removed from main ll */
-	ll_main_dev_cur = ll_root_used;
-	ll_main_dev_last = NULL;
-	while (ll_main_dev_cur != NULL) {
-		if (ll_main_dev_cur->vdev == vdev) {
-			break;
-		} else {
-			ll_main_dev_last = ll_main_dev_cur;
-			ll_main_dev_cur = ll_main_dev_cur->next;
-		}
-	}
-
-	/* Remove entries from the lcore and main ll. */
-	rm_data_ll_entry(&lcore_info[vdev->coreid].lcore_ll->ll_root_used,
-			ll_lcore_dev_cur, ll_lcore_dev_last);
-	rm_data_ll_entry(&ll_root_used, ll_main_dev_cur, ll_main_dev_last);
-
-	/* Set the dev_removal_flag on each lcore. */
-	RTE_LCORE_FOREACH_WORKER(lcore) {
-		lcore_info[lcore].lcore_ll->dev_removal_flag =
-			REQUEST_DEV_REMOVAL;
-	}
-
-	/*
-	 * Once each core has set the dev_removal_flag to
-	 * ACK_DEV_REMOVAL we can be sure that they can no longer access
-	 * the device removed from the linked lists and that the devices
-	 * are no longer in use.
-	 */
-	RTE_LCORE_FOREACH_WORKER(lcore) {
-		while (lcore_info[lcore].lcore_ll->dev_removal_flag
-			!= ACK_DEV_REMOVAL)
-			rte_pause();
-	}
-
-	/* Add the entries back to the lcore and main free ll.*/
-	put_data_ll_free_entry(&lcore_info[vdev->coreid].lcore_ll->ll_root_free,
-				ll_lcore_dev_cur);
-	put_data_ll_free_entry(&ll_root_free, ll_main_dev_cur);
-
-	/* Decrement number of device on the lcore. */
-	lcore_info[vdev->coreid].lcore_ll->device_num--;
-
-	RTE_LOG(INFO, VHOST_DATA, "(%d) Device has been removed "
-		"from data core\n", vid);
-
-	rte_free(vdev);
-
-}
-
-/**
- * A new device is added to a data core. First the device is added
- * to the main linked list and the allocated to a specific data core.
- */
-static int
-new_device(int vid)
-{
-	struct virtio_net_data_ll *ll_dev;
-	int lcore, core_add = 0;
-	uint32_t device_num_min = nb_devices;
-	struct vhost_dev *vdev;
-
-	vdev = rte_zmalloc("vhost device", sizeof(*vdev), RTE_CACHE_LINE_SIZE);
-	if (vdev == NULL) {
-		RTE_LOG(INFO, VHOST_DATA,
-			"(%d) Couldn't allocate memory for vhost dev\n", vid);
-		return -1;
-	}
-	vdev->vid = vid;
-	/* Add device to main ll */
-	ll_dev = get_data_ll_free_entry(&ll_root_free);
-	if (ll_dev == NULL) {
-		RTE_LOG(INFO, VHOST_DATA, "(%d) No free entry found in"
-			" linked list Device limit of %d devices per core"
-			" has been reached\n", vid, nb_devices);
-		if (vdev->regions_hpa)
-			rte_free(vdev->regions_hpa);
-		rte_free(vdev);
-		return -1;
-	}
-	ll_dev->vdev = vdev;
-	add_data_ll_entry(&ll_root_used, ll_dev);
-	vdev->rx_q = vid;
-
-	/* reset ready flag */
-	vdev->ready = DEVICE_MAC_LEARNING;
-	vdev->remove = 0;
-
-	/* Find a suitable lcore to add the device. */
-	RTE_LCORE_FOREACH_WORKER(lcore) {
-		if (lcore_info[lcore].lcore_ll->device_num < device_num_min) {
-			device_num_min = lcore_info[lcore].lcore_ll->device_num;
-			core_add = lcore;
-		}
-	}
-	/* Add device to lcore ll */
-	ll_dev = get_data_ll_free_entry(&lcore_info[core_add].lcore_ll->ll_root_free);
-	if (ll_dev == NULL) {
-		RTE_LOG(INFO, VHOST_DATA,
-			"(%d) Failed to add device to data core\n",
-			vid);
-		vdev->ready = DEVICE_SAFE_REMOVE;
-		destroy_device(vid);
-		rte_free(vdev->regions_hpa);
-		rte_free(vdev);
-		return -1;
-	}
-	ll_dev->vdev = vdev;
-	vdev->coreid = core_add;
-
-	add_data_ll_entry(&lcore_info[vdev->coreid].lcore_ll->ll_root_used,
-			ll_dev);
-
-	/* Initialize device stats */
-	memset(&dev_statistics[vid], 0,
-		sizeof(struct device_statistics));
-
-	/* Disable notifications. */
-	rte_vhost_enable_guest_notification(vid, VIRTIO_RXQ, 0);
-	rte_vhost_enable_guest_notification(vid, VIRTIO_TXQ, 0);
-	lcore_info[vdev->coreid].lcore_ll->device_num++;
-
-	RTE_LOG(INFO, VHOST_DATA, "(%d) Device has been added to data core %d\n",
-		vid, vdev->coreid);
-
-	return 0;
-}
-
-/**
- * These callback allow devices to be added to the data core when configuration
- * has been fully complete.
- */
-static const struct vhost_device_ops virtio_net_device_ops = {
-	.new_device =  new_device,
-	.destroy_device = destroy_device,
-};
-
-/**
- * This is a thread will wake up after a period to print stats if the user has
- * enabled them.
- */
-static void *
-print_stats(__rte_unused void *arg)
-{
-	struct virtio_net_data_ll *dev_ll;
-	uint64_t tx_dropped, rx_dropped;
-	uint64_t tx, tx_total, rx, rx_total, rx_ip_csum, rx_l4_csum;
-	int vid;
-	const char clr[] = { 27, '[', '2', 'J', '\0' };
-	const char top_left[] = { 27, '[', '1', ';', '1', 'H', '\0' };
-
-	while (1) {
-		sleep(enable_stats);
-
-		/* Clear screen and move to top left */
-		printf("%s%s", clr, top_left);
-
-		printf("\nDevice statistics ================================");
-
-		dev_ll = ll_root_used;
-		while (dev_ll != NULL) {
-			vid = dev_ll->vdev->vid;
-			tx_total = dev_statistics[vid].tx_total;
-			tx = dev_statistics[vid].tx;
-			tx_dropped = tx_total - tx;
-
-			rx_total = rte_atomic64_read(
-				&dev_statistics[vid].rx_total_atomic);
-			rx = rte_atomic64_read(
-				&dev_statistics[vid].rx_atomic);
-			rx_dropped = rx_total - rx;
-			rx_ip_csum = rte_atomic64_read(
-				&dev_statistics[vid].rx_bad_ip_csum);
-			rx_l4_csum = rte_atomic64_read(
-				&dev_statistics[vid].rx_bad_l4_csum);
-
-			printf("\nStatistics for device %d ----------"
-					"\nTX total:		%"PRIu64""
-					"\nTX dropped:		%"PRIu64""
-					"\nTX successful:		%"PRIu64""
-					"\nRX total:		%"PRIu64""
-					"\nRX bad IP csum:      %"PRIu64""
-					"\nRX bad L4 csum:      %"PRIu64""
-					"\nRX dropped:		%"PRIu64""
-					"\nRX successful:		%"PRIu64"",
-					vid,
-					tx_total,
-					tx_dropped,
-					tx,
-					rx_total,
-					rx_ip_csum,
-					rx_l4_csum,
-					rx_dropped,
-					rx);
-
-			dev_ll = dev_ll->next;
-		}
-		printf("\n================================================\n");
-
-		fflush(stdout);
-	}
-
-	return NULL;
-}
-
-/**
- * Main function, does initialisation and calls the per-lcore functions.
- */
-int
-main(int argc, char *argv[])
-{
-	struct rte_mempool *mbuf_pool = NULL;
-	unsigned lcore_id, core_id = 0;
-	unsigned nb_ports, valid_nb_ports;
-	int ret;
-	uint16_t portid;
-	uint16_t queue_id;
-	static pthread_t tid;
-
-	/* init EAL */
-	ret = rte_eal_init(argc, argv);
-	if (ret < 0)
-		rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
-	argc -= ret;
-	argv += ret;
-
-	/* parse app arguments */
-	ret = tep_termination_parse_args(argc, argv);
-	if (ret < 0)
-		rte_exit(EXIT_FAILURE, "Invalid argument\n");
-
-	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++)
-		if (rte_lcore_is_enabled(lcore_id))
-			lcore_ids[core_id++] = lcore_id;
-
-	/* set the number of swithcing cores available */
-	nb_switching_cores = rte_lcore_count()-1;
-
-	/* Get the number of physical ports. */
-	nb_ports = rte_eth_dev_count_avail();
-
-	/*
-	 * Update the global var NB_PORTS and global array PORTS
-	 * and get value of var VALID_NB_PORTS according to system ports number
-	 */
-	valid_nb_ports = check_ports_num(nb_ports);
-
-	if ((valid_nb_ports == 0) || (valid_nb_ports > MAX_SUP_PORTS)) {
-		rte_exit(EXIT_FAILURE, "Current enabled port number is %u,"
-			"but only %u port can be enabled\n", nb_ports,
-			MAX_SUP_PORTS);
-	}
-	/* Create the mbuf pool. */
-	mbuf_pool = rte_pktmbuf_pool_create(
-			"MBUF_POOL",
-			NUM_MBUFS_PER_PORT * valid_nb_ports,
-			MBUF_CACHE_SIZE,
-			0,
-			MBUF_DATA_SIZE,
-			rte_socket_id());
-	if (mbuf_pool == NULL)
-		rte_exit(EXIT_FAILURE, "Cannot create mbuf pool\n");
-
-	for (queue_id = 0; queue_id < MAX_QUEUES + 1; queue_id++)
-		vpool_array[queue_id].pool = mbuf_pool;
-
-	/* initialize all ports */
-	RTE_ETH_FOREACH_DEV(portid) {
-		/* skip ports that are not enabled */
-		if ((enabled_port_mask & (1 << portid)) == 0) {
-			RTE_LOG(INFO, VHOST_PORT,
-				"Skipping disabled port %d\n", portid);
-			continue;
-		}
-		if (overlay_options.port_configure(portid, mbuf_pool) != 0)
-			rte_exit(EXIT_FAILURE,
-				"Cannot initialize network ports\n");
-	}
-
-	/* Initialise all linked lists. */
-	if (init_data_ll() == -1)
-		rte_exit(EXIT_FAILURE, "Failed to initialize linked list\n");
-
-	/* Initialize device stats */
-	memset(&dev_statistics, 0, sizeof(dev_statistics));
-
-	/* Enable stats if the user option is set. */
-	if (enable_stats) {
-		ret = rte_ctrl_thread_create(&tid, "print-stats", NULL,
-					print_stats, NULL);
-		if (ret < 0)
-			rte_exit(EXIT_FAILURE, "Cannot create print-stats thread\n");
-	}
-
-	/* Launch all data cores. */
-	RTE_LCORE_FOREACH_WORKER(lcore_id) {
-		rte_eal_remote_launch(switch_worker,
-			mbuf_pool, lcore_id);
-	}
-
-	ret = rte_vhost_driver_register((char *)&dev_basename, 0);
-	if (ret != 0)
-		rte_exit(EXIT_FAILURE, "failed to register vhost driver.\n");
-
-	rte_vhost_driver_disable_features(dev_basename,
-		1ULL << VIRTIO_NET_F_MRG_RXBUF);
-
-	ret = rte_vhost_driver_callback_register(dev_basename,
-		&virtio_net_device_ops);
-	if (ret != 0) {
-		rte_exit(EXIT_FAILURE,
-			"failed to register vhost driver callbacks.\n");
-	}
-
-	if (rte_vhost_driver_start(dev_basename) < 0) {
-		rte_exit(EXIT_FAILURE,
-			"failed to start vhost driver.\n");
-	}
-
-	RTE_LCORE_FOREACH_WORKER(lcore_id)
-		rte_eal_wait_lcore(lcore_id);
-
-	return 0;
-}
diff --git a/examples/tep_termination/main.h b/examples/tep_termination/main.h
deleted file mode 100644
index 7a70f7396f..0000000000
--- a/examples/tep_termination/main.h
+++ /dev/null
@@ -1,93 +0,0 @@ 
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2015 Intel Corporation
- */
-
-#ifndef _MAIN_H_
-#define _MAIN_H_
-
-#include <rte_ether.h>
-
-/* Macros for printing using RTE_LOG */
-#define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
-#define RTE_LOGTYPE_VHOST_DATA   RTE_LOGTYPE_USER2
-#define RTE_LOGTYPE_VHOST_PORT   RTE_LOGTYPE_USER3
-
-/* State of virtio device. */
-#define DEVICE_MAC_LEARNING	0
-#define DEVICE_RX		1
-#define DEVICE_SAFE_REMOVE	2
-
-#define MAX_QUEUES 512
-
-/* Max burst size for RX/TX */
-#define MAX_PKT_BURST 32
-
-/* Max number of devices. Limited by the application. */
-#define MAX_DEVICES 64
-
-enum {VIRTIO_RXQ, VIRTIO_TXQ, VIRTIO_QNUM};
-
-/* Per-device statistics struct */
-struct device_statistics {
-	uint64_t tx_total;
-	rte_atomic64_t rx_total_atomic;
-	uint64_t rx_total;
-	uint64_t tx;
-	rte_atomic64_t rx_atomic;
-	/**< Bad inner IP csum for tunneling pkt */
-	rte_atomic64_t rx_bad_ip_csum;
-	/**< Bad inner L4 csum for tunneling pkt */
-	rte_atomic64_t rx_bad_l4_csum;
-} __rte_cache_aligned;
-
-/**
- * Device linked list structure for data path.
- */
-struct vhost_dev {
-	int vid;
-	/**< Number of memory regions for gpa to hpa translation. */
-	uint32_t nregions_hpa;
-	/**< Memory region information for gpa to hpa translation. */
-	struct virtio_memory_regions_hpa *regions_hpa;
-	/**< Device MAC address (Obtained on first TX packet). */
-	struct rte_ether_addr mac_address;
-	/**< RX queue number. */
-	uint16_t rx_q;
-	/**< Data core that the device is added to. */
-	uint16_t coreid;
-	/**< A device is set as ready if the MAC address has been set. */
-	volatile uint8_t ready;
-	/**< Device is marked for removal from the data core. */
-	volatile uint8_t remove;
-} __rte_cache_aligned;
-
-/**
- * Structure containing data core specific information.
- */
-struct lcore_ll_info {
-	/**< Pointer to head in free linked list. */
-	struct virtio_net_data_ll *ll_root_free;
-	/**< Pointer to head of used linked list. */
-	struct virtio_net_data_ll *ll_root_used;
-	/**< Number of devices on lcore. */
-	uint32_t device_num;
-	/**< Flag to synchronize device removal. */
-	volatile uint8_t dev_removal_flag;
-};
-
-struct lcore_info {
-	/**< Pointer to data core specific lcore_ll_info struct */
-	struct lcore_ll_info	*lcore_ll;
-};
-
-struct virtio_net_data_ll {
-	/**< Pointer to device created by configuration core. */
-	struct vhost_dev            *vdev;
-	/**< Pointer to next device in linked list. */
-	struct virtio_net_data_ll   *next;
-};
-
-uint32_t
-virtio_dev_rx(int vid, struct rte_mbuf **pkts, uint32_t count);
-
-#endif /* _MAIN_H_ */
diff --git a/examples/tep_termination/meson.build b/examples/tep_termination/meson.build
deleted file mode 100644
index f65d689802..0000000000
--- a/examples/tep_termination/meson.build
+++ /dev/null
@@ -1,16 +0,0 @@ 
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
-
-# meson file, for building this example as part of a main DPDK build.
-#
-# To build this example as a standalone application with an already-installed
-# DPDK instance, use 'make'
-
-if not is_linux
-	build = false
-endif
-deps += ['hash', 'vhost']
-cflags += '-Wno-deprecated-declarations'
-sources = files(
-	'main.c', 'vxlan.c', 'vxlan_setup.c'
-)
diff --git a/examples/tep_termination/vxlan.c b/examples/tep_termination/vxlan.c
deleted file mode 100644
index 0ba6b8be8b..0000000000
--- a/examples/tep_termination/vxlan.c
+++ /dev/null
@@ -1,243 +0,0 @@ 
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2015 Intel Corporation
- */
-
-#include <stdint.h>
-#include <rte_mbuf.h>
-#include <rte_hash_crc.h>
-#include <rte_byteorder.h>
-#include <rte_udp.h>
-#include <rte_tcp.h>
-#include <rte_sctp.h>
-
-#include "main.h"
-#include "vxlan.h"
-
-static uint16_t
-get_psd_sum(void *l3_hdr, uint16_t ethertype, uint64_t ol_flags)
-{
-	if (ethertype == RTE_ETHER_TYPE_IPV4)
-		return rte_ipv4_phdr_cksum(l3_hdr, ol_flags);
-	else /* assume ethertype == RTE_ETHER_TYPE_IPV6 */
-		return rte_ipv6_phdr_cksum(l3_hdr, ol_flags);
-}
-
-/**
- * Parse an ethernet header to fill the ethertype, outer_l2_len, outer_l3_len and
- * ipproto. This function is able to recognize IPv4/IPv6 with one optional vlan
- * header.
- */
-static void
-parse_ethernet(struct rte_ether_hdr *eth_hdr, union tunnel_offload_info *info,
-		uint8_t *l4_proto)
-{
-	struct rte_ipv4_hdr *ipv4_hdr;
-	struct rte_ipv6_hdr *ipv6_hdr;
-	uint16_t ethertype;
-
-	info->outer_l2_len = sizeof(struct rte_ether_hdr);
-	ethertype = rte_be_to_cpu_16(eth_hdr->ether_type);
-
-	if (ethertype == RTE_ETHER_TYPE_VLAN) {
-		struct rte_vlan_hdr *vlan_hdr =
-			(struct rte_vlan_hdr *)(eth_hdr + 1);
-		info->outer_l2_len  += sizeof(struct rte_vlan_hdr);
-		ethertype = rte_be_to_cpu_16(vlan_hdr->eth_proto);
-	}
-
-	switch (ethertype) {
-	case RTE_ETHER_TYPE_IPV4:
-		ipv4_hdr = (struct rte_ipv4_hdr *)
-			((char *)eth_hdr + info->outer_l2_len);
-		info->outer_l3_len = sizeof(struct rte_ipv4_hdr);
-		*l4_proto = ipv4_hdr->next_proto_id;
-		break;
-	case RTE_ETHER_TYPE_IPV6:
-		ipv6_hdr = (struct rte_ipv6_hdr *)
-			((char *)eth_hdr + info->outer_l2_len);
-		info->outer_l3_len = sizeof(struct rte_ipv6_hdr);
-		*l4_proto = ipv6_hdr->proto;
-		break;
-	default:
-		info->outer_l3_len = 0;
-		*l4_proto = 0;
-		break;
-	}
-}
-
-/**
- * Calculate the checksum of a packet in hardware
- */
-static uint64_t
-process_inner_cksums(struct rte_ether_hdr *eth_hdr,
-		union tunnel_offload_info *info)
-{
-	void *l3_hdr = NULL;
-	uint8_t l4_proto;
-	uint16_t ethertype;
-	struct rte_ipv4_hdr *ipv4_hdr;
-	struct rte_ipv6_hdr *ipv6_hdr;
-	struct rte_udp_hdr *udp_hdr;
-	struct rte_tcp_hdr *tcp_hdr;
-	struct rte_sctp_hdr *sctp_hdr;
-	uint64_t ol_flags = 0;
-
-	info->l2_len = sizeof(struct rte_ether_hdr);
-	ethertype = rte_be_to_cpu_16(eth_hdr->ether_type);
-
-	if (ethertype == RTE_ETHER_TYPE_VLAN) {
-		struct rte_vlan_hdr *vlan_hdr =
-			(struct rte_vlan_hdr *)(eth_hdr + 1);
-		info->l2_len  += sizeof(struct rte_vlan_hdr);
-		ethertype = rte_be_to_cpu_16(vlan_hdr->eth_proto);
-	}
-
-	l3_hdr = (char *)eth_hdr + info->l2_len;
-
-	if (ethertype == RTE_ETHER_TYPE_IPV4) {
-		ipv4_hdr = (struct rte_ipv4_hdr *)l3_hdr;
-		ipv4_hdr->hdr_checksum = 0;
-		ol_flags |= PKT_TX_IPV4;
-		ol_flags |= PKT_TX_IP_CKSUM;
-		info->l3_len = sizeof(struct rte_ipv4_hdr);
-		l4_proto = ipv4_hdr->next_proto_id;
-	} else if (ethertype == RTE_ETHER_TYPE_IPV6) {
-		ipv6_hdr = (struct rte_ipv6_hdr *)l3_hdr;
-		info->l3_len = sizeof(struct rte_ipv6_hdr);
-		l4_proto = ipv6_hdr->proto;
-		ol_flags |= PKT_TX_IPV6;
-	} else
-		return 0; /* packet type not supported, nothing to do */
-
-	if (l4_proto == IPPROTO_UDP) {
-		udp_hdr = (struct rte_udp_hdr *)((char *)l3_hdr + info->l3_len);
-		ol_flags |= PKT_TX_UDP_CKSUM;
-		udp_hdr->dgram_cksum = get_psd_sum(l3_hdr,
-				ethertype, ol_flags);
-	} else if (l4_proto == IPPROTO_TCP) {
-		tcp_hdr = (struct rte_tcp_hdr *)((char *)l3_hdr + info->l3_len);
-		/* Put PKT_TX_TCP_SEG bit setting before get_psd_sum(), because
-		 * it depends on PKT_TX_TCP_SEG to calculate pseudo-header
-		 * checksum.
-		 */
-		if (tso_segsz != 0) {
-			ol_flags |= PKT_TX_TCP_SEG;
-			info->tso_segsz = tso_segsz;
-			info->l4_len = (tcp_hdr->data_off & 0xf0) >> 2;
-		}
-		ol_flags |= PKT_TX_TCP_CKSUM;
-		tcp_hdr->cksum = get_psd_sum(l3_hdr, ethertype, ol_flags);
-
-	} else if (l4_proto == IPPROTO_SCTP) {
-		sctp_hdr = (struct rte_sctp_hdr *)
-			((char *)l3_hdr + info->l3_len);
-		sctp_hdr->cksum = 0;
-		ol_flags |= PKT_TX_SCTP_CKSUM;
-	}
-
-	return ol_flags;
-}
-
-int
-decapsulation(struct rte_mbuf *pkt)
-{
-	uint8_t l4_proto = 0;
-	uint16_t outer_header_len;
-	struct rte_udp_hdr *udp_hdr;
-	union tunnel_offload_info info = { .data = 0 };
-	struct rte_ether_hdr *phdr =
-		rte_pktmbuf_mtod(pkt, struct rte_ether_hdr *);
-
-	parse_ethernet(phdr, &info, &l4_proto);
-
-	if (l4_proto != IPPROTO_UDP)
-		return -1;
-
-	udp_hdr = (struct rte_udp_hdr *)((char *)phdr +
-		info.outer_l2_len + info.outer_l3_len);
-
-	/** check udp destination port, 4789 is the default vxlan port
-	 * (rfc7348) or that the rx offload flag is set (i40e only
-	 * currently)*/
-	if (udp_hdr->dst_port != rte_cpu_to_be_16(RTE_VXLAN_DEFAULT_PORT) &&
-		(pkt->packet_type & RTE_PTYPE_TUNNEL_MASK) == 0)
-		return -1;
-	outer_header_len = info.outer_l2_len + info.outer_l3_len
-		+ sizeof(struct rte_udp_hdr) + sizeof(struct rte_vxlan_hdr);
-
-	rte_pktmbuf_adj(pkt, outer_header_len);
-
-	return 0;
-}
-
-void
-encapsulation(struct rte_mbuf *m, uint8_t queue_id)
-{
-	uint vport_id;
-	uint64_t ol_flags = 0;
-	uint32_t old_len = m->pkt_len, hash;
-	union tunnel_offload_info tx_offload = { .data = 0 };
-	struct rte_ether_hdr *phdr =
-		rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
-
-	/*Allocate space for new ethernet, IPv4, UDP and VXLAN headers*/
-	struct rte_ether_hdr *pneth =
-		(struct rte_ether_hdr *) rte_pktmbuf_prepend(m,
-		sizeof(struct rte_ether_hdr) + sizeof(struct rte_ipv4_hdr)
-		+ sizeof(struct rte_udp_hdr) + sizeof(struct rte_vxlan_hdr));
-
-	struct rte_ipv4_hdr *ip = (struct rte_ipv4_hdr *) &pneth[1];
-	struct rte_udp_hdr *udp = (struct rte_udp_hdr *) &ip[1];
-	struct rte_vxlan_hdr *vxlan = (struct rte_vxlan_hdr *) &udp[1];
-
-	/* convert TX queue ID to vport ID */
-	vport_id = queue_id - 1;
-
-	/* replace original Ethernet header with ours */
-	pneth = rte_memcpy(pneth, &app_l2_hdr[vport_id],
-		sizeof(struct rte_ether_hdr));
-
-	/* copy in IP header */
-	ip = rte_memcpy(ip, &app_ip_hdr[vport_id],
-		sizeof(struct rte_ipv4_hdr));
-	ip->total_length = rte_cpu_to_be_16(m->pkt_len
-				- sizeof(struct rte_ether_hdr));
-
-	/* outer IP checksum */
-	ol_flags |= PKT_TX_OUTER_IP_CKSUM;
-	ip->hdr_checksum = 0;
-
-	/* inner IP checksum offload */
-	if (tx_checksum) {
-		ol_flags |= process_inner_cksums(phdr, &tx_offload);
-		m->l2_len = tx_offload.l2_len;
-		m->l3_len = tx_offload.l3_len;
-		m->l4_len = tx_offload.l4_len;
-		m->l2_len += RTE_ETHER_VXLAN_HLEN;
-	}
-
-	m->outer_l2_len = sizeof(struct rte_ether_hdr);
-	m->outer_l3_len = sizeof(struct rte_ipv4_hdr);
-
-	ol_flags |= PKT_TX_TUNNEL_VXLAN;
-
-	m->ol_flags |= ol_flags;
-	m->tso_segsz = tx_offload.tso_segsz;
-
-	/*VXLAN HEADER*/
-	vxlan->vx_flags = rte_cpu_to_be_32(VXLAN_HF_VNI);
-	vxlan->vx_vni = rte_cpu_to_be_32(vxdev.out_key << 8);
-
-	/*UDP HEADER*/
-	udp->dgram_cksum = 0;
-	udp->dgram_len = rte_cpu_to_be_16(old_len
-				+ sizeof(struct rte_udp_hdr)
-				+ sizeof(struct rte_vxlan_hdr));
-
-	udp->dst_port = rte_cpu_to_be_16(vxdev.dst_port);
-	hash = rte_hash_crc(phdr, 2 * RTE_ETHER_ADDR_LEN, phdr->ether_type);
-	udp->src_port = rte_cpu_to_be_16((((uint64_t) hash * PORT_RANGE) >> 32)
-					+ PORT_MIN);
-
-	return;
-}
diff --git a/examples/tep_termination/vxlan.h b/examples/tep_termination/vxlan.h
deleted file mode 100644
index 587fb9fe57..0000000000
--- a/examples/tep_termination/vxlan.h
+++ /dev/null
@@ -1,57 +0,0 @@ 
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2015 Intel Corporation
- */
-
-#ifndef _VXLAN_H_
-#define _VXLAN_H_
-
-#include <rte_ether.h>
-#include <rte_ip.h>
-#include <rte_vxlan.h>
-
-#define PORT_MIN	49152
-#define PORT_MAX	65535
-#define PORT_RANGE ((PORT_MAX - PORT_MIN) + 1)
-
-#define VXLAN_N_PORTS  2
-#define VXLAN_HF_VNI 0x08000000
-
-extern struct rte_ipv4_hdr app_ip_hdr[VXLAN_N_PORTS];
-extern struct rte_ether_hdr app_l2_hdr[VXLAN_N_PORTS];
-extern uint8_t tx_checksum;
-extern uint16_t tso_segsz;
-
-struct vxlan_port {
-	uint32_t vport_id;           /**< VirtIO port id */
-	uint32_t peer_ip;            /**< remote VTEP IP address */
-	struct rte_ether_addr peer_mac;  /**< remote VTEP MAC address */
-	struct rte_ether_addr vport_mac; /**< VirtIO port MAC address */
-} __rte_cache_aligned;
-
-struct vxlan_conf {
-	uint16_t dst_port;      /**< VXLAN UDP destination port */
-	uint32_t port_ip;       /**< DPDK port IP address*/
-	uint32_t in_key;        /**< VLAN  ID */
-	uint32_t out_key;       /**< VXLAN VNI */
-	struct vxlan_port port[VXLAN_N_PORTS]; /**< VXLAN configuration */
-} __rte_cache_aligned;
-
-extern struct vxlan_conf vxdev;
-
-/* structure that caches offload info for the current packet */
-union tunnel_offload_info {
-	uint64_t data;
-	struct {
-		uint64_t l2_len:7; /**< L2 (MAC) Header Length. */
-		uint64_t l3_len:9; /**< L3 (IP) Header Length. */
-		uint64_t l4_len:8; /**< L4 Header Length. */
-		uint64_t tso_segsz:16; /**< TCP TSO segment size */
-		uint64_t outer_l2_len:7; /**< outer L2 Header Length */
-		uint64_t outer_l3_len:16; /**< outer L3 Header Length */
-	};
-} __rte_cache_aligned;
-
-int decapsulation(struct rte_mbuf *pkt);
-void encapsulation(struct rte_mbuf *m, uint8_t queue_id);
-
-#endif /* _VXLAN_H_ */
diff --git a/examples/tep_termination/vxlan_setup.c b/examples/tep_termination/vxlan_setup.c
deleted file mode 100644
index 4b44ccc143..0000000000
--- a/examples/tep_termination/vxlan_setup.c
+++ /dev/null
@@ -1,443 +0,0 @@ 
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2015 Intel Corporation
- */
-
-#include <getopt.h>
-#include <linux/if_ether.h>
-#include <linux/if_vlan.h>
-#include <linux/virtio_net.h>
-#include <linux/virtio_ring.h>
-#include <sys/param.h>
-#include <unistd.h>
-
-#include <rte_ethdev.h>
-#include <rte_log.h>
-#include <rte_string_fns.h>
-#include <rte_mbuf.h>
-#include <rte_malloc.h>
-#include <rte_ip.h>
-#include <rte_udp.h>
-#include <rte_tcp.h>
-
-#include "main.h"
-#include "rte_vhost.h"
-#include "vxlan.h"
-#include "vxlan_setup.h"
-
-#define IPV4_HEADER_LEN 20
-#define UDP_HEADER_LEN  8
-#define VXLAN_HEADER_LEN 8
-
-#define IP_DEFTTL  64   /* from RFC 1340. */
-
-#define IP_DN_FRAGMENT_FLAG 0x0040
-
-/* Used to compare MAC addresses. */
-#define MAC_ADDR_CMP 0xFFFFFFFFFFFFULL
-
-/* Configurable number of RX/TX ring descriptors */
-#define RTE_TEST_RX_DESC_DEFAULT 1024
-#define RTE_TEST_TX_DESC_DEFAULT 512
-
-/* Default inner VLAN ID */
-#define INNER_VLAN_ID 100
-
-/* VXLAN device */
-struct vxlan_conf vxdev;
-
-struct rte_ipv4_hdr app_ip_hdr[VXLAN_N_PORTS];
-struct rte_ether_hdr app_l2_hdr[VXLAN_N_PORTS];
-
-/* local VTEP IP address */
-uint8_t vxlan_multicast_ips[2][4] = { {239, 1, 1, 1 }, {239, 1, 2, 1 } };
-
-/* Remote VTEP IP address */
-uint8_t vxlan_overlay_ips[2][4] = { {192, 168, 10, 1}, {192, 168, 30, 1} };
-
-/* Remote VTEP MAC address */
-uint8_t peer_mac[6] = {0x00, 0x11, 0x01, 0x00, 0x00, 0x01};
-
-/* VXLAN RX filter type */
-uint8_t tep_filter_type[] = {RTE_TUNNEL_FILTER_IMAC_TENID,
-			RTE_TUNNEL_FILTER_IMAC_IVLAN_TENID,
-			RTE_TUNNEL_FILTER_OMAC_TENID_IMAC,};
-
-/* Options for configuring ethernet port */
-static struct rte_eth_conf port_conf = {
-	.rxmode = {
-		.split_hdr_size = 0,
-	},
-	.txmode = {
-		.mq_mode = ETH_MQ_TX_NONE,
-		.offloads = (DEV_TX_OFFLOAD_IPV4_CKSUM |
-			     DEV_TX_OFFLOAD_UDP_CKSUM |
-			     DEV_TX_OFFLOAD_TCP_CKSUM |
-			     DEV_TX_OFFLOAD_SCTP_CKSUM |
-			     DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
-			     DEV_TX_OFFLOAD_TCP_TSO |
-			     DEV_TX_OFFLOAD_MULTI_SEGS |
-			     DEV_TX_OFFLOAD_VXLAN_TNL_TSO),
-	},
-};
-
-/**
- * The one or two device(s) that belongs to the same tenant ID can
- * be assigned in a VM.
- */
-const uint16_t tenant_id_conf[] = {
-	1000, 1000, 1001, 1001, 1002, 1002, 1003, 1003,
-	1004, 1004, 1005, 1005, 1006, 1006, 1007, 1007,
-	1008, 1008, 1009, 1009, 1010, 1010, 1011, 1011,
-	1012, 1012, 1013, 1013, 1014, 1014, 1015, 1015,
-	1016, 1016, 1017, 1017, 1018, 1018, 1019, 1019,
-	1020, 1020, 1021, 1021, 1022, 1022, 1023, 1023,
-	1024, 1024, 1025, 1025, 1026, 1026, 1027, 1027,
-	1028, 1028, 1029, 1029, 1030, 1030, 1031, 1031,
-};
-
-/**
- * Initialises a given port using global settings and with the rx buffers
- * coming from the mbuf_pool passed as parameter
- */
-int
-vxlan_port_init(uint16_t port, struct rte_mempool *mbuf_pool)
-{
-	int retval;
-	uint16_t q;
-	struct rte_eth_dev_info dev_info;
-	uint16_t rx_rings, tx_rings = (uint16_t)rte_lcore_count();
-	uint16_t rx_ring_size = RTE_TEST_RX_DESC_DEFAULT;
-	uint16_t tx_ring_size = RTE_TEST_TX_DESC_DEFAULT;
-	struct rte_eth_udp_tunnel tunnel_udp;
-	struct rte_eth_rxconf *rxconf;
-	struct rte_eth_txconf *txconf;
-	struct vxlan_conf *pconf = &vxdev;
-	struct rte_eth_conf local_port_conf = port_conf;
-
-	pconf->dst_port = udp_port;
-
-	retval = rte_eth_dev_info_get(port, &dev_info);
-	if (retval != 0)
-		rte_exit(EXIT_FAILURE,
-			"Error during getting device (port %u) info: %s\n",
-			port, strerror(-retval));
-
-	if (dev_info.max_rx_queues > MAX_QUEUES) {
-		rte_exit(EXIT_FAILURE,
-			"please define MAX_QUEUES no less than %u in %s\n",
-			dev_info.max_rx_queues, __FILE__);
-	}
-
-	rxconf = &dev_info.default_rxconf;
-	txconf = &dev_info.default_txconf;
-
-	if (!rte_eth_dev_is_valid_port(port))
-		return -1;
-
-	rx_rings = nb_devices;
-	if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
-		local_port_conf.txmode.offloads |=
-			DEV_TX_OFFLOAD_MBUF_FAST_FREE;
-	/* Configure ethernet device. */
-	retval = rte_eth_dev_configure(port, rx_rings, tx_rings,
-				       &local_port_conf);
-	if (retval != 0)
-		return retval;
-
-	retval = rte_eth_dev_adjust_nb_rx_tx_desc(port, &rx_ring_size,
-			&tx_ring_size);
-	if (retval != 0)
-		return retval;
-
-	/* Setup the queues. */
-	rxconf->offloads = local_port_conf.rxmode.offloads;
-	for (q = 0; q < rx_rings; q++) {
-		retval = rte_eth_rx_queue_setup(port, q, rx_ring_size,
-						rte_eth_dev_socket_id(port),
-						rxconf,
-						mbuf_pool);
-		if (retval < 0)
-			return retval;
-	}
-	txconf->offloads = local_port_conf.txmode.offloads;
-	for (q = 0; q < tx_rings; q++) {
-		retval = rte_eth_tx_queue_setup(port, q, tx_ring_size,
-						rte_eth_dev_socket_id(port),
-						txconf);
-		if (retval < 0)
-			return retval;
-	}
-
-	/* Start the device. */
-	retval  = rte_eth_dev_start(port);
-	if (retval < 0)
-		return retval;
-
-	/* Configure UDP port for UDP tunneling */
-	tunnel_udp.udp_port = udp_port;
-	tunnel_udp.prot_type = RTE_TUNNEL_TYPE_VXLAN;
-	retval = rte_eth_dev_udp_tunnel_port_add(port, &tunnel_udp);
-	if (retval < 0)
-		return retval;
-	retval = rte_eth_macaddr_get(port, &ports_eth_addr[port]);
-	if (retval < 0)
-		return retval;
-
-	RTE_LOG(INFO, PORT, "Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8
-			" %02"PRIx8" %02"PRIx8" %02"PRIx8"\n",
-			port,
-			ports_eth_addr[port].addr_bytes[0],
-			ports_eth_addr[port].addr_bytes[1],
-			ports_eth_addr[port].addr_bytes[2],
-			ports_eth_addr[port].addr_bytes[3],
-			ports_eth_addr[port].addr_bytes[4],
-			ports_eth_addr[port].addr_bytes[5]);
-
-	if (tso_segsz != 0) {
-		if ((dev_info.tx_offload_capa & DEV_TX_OFFLOAD_TCP_TSO) == 0)
-			RTE_LOG(WARNING, PORT,
-				"hardware TSO offload is not supported\n");
-	}
-	return 0;
-}
-
-static int
-vxlan_rx_process(struct rte_mbuf *pkt)
-{
-	int ret = 0;
-
-	if (rx_decap)
-		ret = decapsulation(pkt);
-
-	return ret;
-}
-
-static void
-vxlan_tx_process(uint8_t queue_id, struct rte_mbuf *pkt)
-{
-	if (tx_encap)
-		encapsulation(pkt, queue_id);
-
-	return;
-}
-
-/*
- * This function learns the MAC address of the device and set init
- * L2 header and L3 header info.
- */
-int
-vxlan_link(struct vhost_dev *vdev, struct rte_mbuf *m)
-{
-	int i, ret;
-	struct rte_ether_hdr *pkt_hdr;
-	uint64_t portid = vdev->vid;
-	struct rte_ipv4_hdr *ip;
-
-	struct rte_eth_tunnel_filter_conf tunnel_filter_conf;
-
-	if (unlikely(portid >= VXLAN_N_PORTS)) {
-		RTE_LOG(INFO, VHOST_DATA,
-			"(%d) WARNING: Not configuring device,"
-			"as already have %d ports for VXLAN.",
-			vdev->vid, VXLAN_N_PORTS);
-		return -1;
-	}
-
-	/* Learn MAC address of guest device from packet */
-	pkt_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
-	if (rte_is_same_ether_addr(&(pkt_hdr->s_addr), &vdev->mac_address)) {
-		RTE_LOG(INFO, VHOST_DATA,
-			"(%d) WARNING: This device is using an existing"
-			" MAC address and has not been registered.\n",
-			vdev->vid);
-		return -1;
-	}
-
-	for (i = 0; i < RTE_ETHER_ADDR_LEN; i++) {
-		vdev->mac_address.addr_bytes[i] =
-			vxdev.port[portid].vport_mac.addr_bytes[i] =
-			pkt_hdr->s_addr.addr_bytes[i];
-		vxdev.port[portid].peer_mac.addr_bytes[i] = peer_mac[i];
-	}
-
-	memset(&tunnel_filter_conf, 0,
-		sizeof(struct rte_eth_tunnel_filter_conf));
-
-	rte_ether_addr_copy(&ports_eth_addr[0], &tunnel_filter_conf.outer_mac);
-	tunnel_filter_conf.filter_type = tep_filter_type[filter_idx];
-
-	/* inner MAC */
-	rte_ether_addr_copy(&vdev->mac_address, &tunnel_filter_conf.inner_mac);
-
-	tunnel_filter_conf.queue_id = vdev->rx_q;
-	tunnel_filter_conf.tenant_id = tenant_id_conf[vdev->rx_q];
-
-	if (tep_filter_type[filter_idx] == RTE_TUNNEL_FILTER_IMAC_IVLAN_TENID)
-		tunnel_filter_conf.inner_vlan = INNER_VLAN_ID;
-
-	tunnel_filter_conf.tunnel_type = RTE_TUNNEL_TYPE_VXLAN;
-
-	ret = rte_eth_dev_filter_ctrl(ports[0],
-		RTE_ETH_FILTER_TUNNEL,
-		RTE_ETH_FILTER_ADD,
-		&tunnel_filter_conf);
-	if (ret) {
-		RTE_LOG(ERR, VHOST_DATA,
-			"%d Failed to add device MAC address to cloud filter\n",
-		vdev->rx_q);
-		return -1;
-	}
-
-	/* Print out inner MAC and VNI info. */
-	RTE_LOG(INFO, VHOST_DATA,
-		"(%d) MAC_ADDRESS %02x:%02x:%02x:%02x:%02x:%02x and VNI %d registered\n",
-		vdev->rx_q,
-		vdev->mac_address.addr_bytes[0],
-		vdev->mac_address.addr_bytes[1],
-		vdev->mac_address.addr_bytes[2],
-		vdev->mac_address.addr_bytes[3],
-		vdev->mac_address.addr_bytes[4],
-		vdev->mac_address.addr_bytes[5],
-		tenant_id_conf[vdev->rx_q]);
-
-	vxdev.port[portid].vport_id = portid;
-
-	for (i = 0; i < 4; i++) {
-		/* Local VTEP IP */
-		vxdev.port_ip |= vxlan_multicast_ips[portid][i] << (8 * i);
-		/* Remote VTEP IP */
-		vxdev.port[portid].peer_ip |=
-			vxlan_overlay_ips[portid][i] << (8 * i);
-	}
-
-	vxdev.out_key = tenant_id_conf[vdev->rx_q];
-	rte_ether_addr_copy(&vxdev.port[portid].peer_mac,
-			&app_l2_hdr[portid].d_addr);
-	rte_ether_addr_copy(&ports_eth_addr[0],
-			&app_l2_hdr[portid].s_addr);
-	app_l2_hdr[portid].ether_type = rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4);
-
-	ip = &app_ip_hdr[portid];
-	ip->version_ihl = RTE_IPV4_VHL_DEF;
-	ip->type_of_service = 0;
-	ip->total_length = 0;
-	ip->packet_id = 0;
-	ip->fragment_offset = IP_DN_FRAGMENT_FLAG;
-	ip->time_to_live = IP_DEFTTL;
-	ip->next_proto_id = IPPROTO_UDP;
-	ip->hdr_checksum = 0;
-	ip->src_addr = vxdev.port_ip;
-	ip->dst_addr = vxdev.port[portid].peer_ip;
-
-	/* Set device as ready for RX. */
-	vdev->ready = DEVICE_RX;
-
-	return 0;
-}
-
-/**
- * Removes cloud filter. Ensures that nothing is adding buffers to the RX
- * queue before disabling RX on the device.
- */
-void
-vxlan_unlink(struct vhost_dev *vdev)
-{
-	unsigned i = 0, rx_count;
-	int ret;
-	struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
-	struct rte_eth_tunnel_filter_conf tunnel_filter_conf;
-
-	if (vdev->ready == DEVICE_RX) {
-		memset(&tunnel_filter_conf, 0,
-			sizeof(struct rte_eth_tunnel_filter_conf));
-
-		rte_ether_addr_copy(&ports_eth_addr[0],
-				&tunnel_filter_conf.outer_mac);
-		rte_ether_addr_copy(&vdev->mac_address,
-				&tunnel_filter_conf.inner_mac);
-		tunnel_filter_conf.tenant_id = tenant_id_conf[vdev->rx_q];
-		tunnel_filter_conf.filter_type = tep_filter_type[filter_idx];
-
-		if (tep_filter_type[filter_idx] ==
-			RTE_TUNNEL_FILTER_IMAC_IVLAN_TENID)
-			tunnel_filter_conf.inner_vlan = INNER_VLAN_ID;
-
-		tunnel_filter_conf.queue_id = vdev->rx_q;
-		tunnel_filter_conf.tunnel_type = RTE_TUNNEL_TYPE_VXLAN;
-
-		ret = rte_eth_dev_filter_ctrl(ports[0],
-				RTE_ETH_FILTER_TUNNEL,
-				RTE_ETH_FILTER_DELETE,
-				&tunnel_filter_conf);
-		if (ret) {
-			RTE_LOG(ERR, VHOST_DATA,
-				"%d Failed to add device MAC address to cloud filter\n",
-				vdev->rx_q);
-			return;
-		}
-		for (i = 0; i < RTE_ETHER_ADDR_LEN; i++)
-			vdev->mac_address.addr_bytes[i] = 0;
-
-		/* Clear out the receive buffers */
-		rx_count = rte_eth_rx_burst(ports[0],
-				(uint16_t)vdev->rx_q,
-				pkts_burst, MAX_PKT_BURST);
-
-		while (rx_count) {
-			for (i = 0; i < rx_count; i++)
-				rte_pktmbuf_free(pkts_burst[i]);
-
-			rx_count = rte_eth_rx_burst(ports[0],
-					(uint16_t)vdev->rx_q,
-					pkts_burst, MAX_PKT_BURST);
-		}
-		vdev->ready = DEVICE_MAC_LEARNING;
-	}
-}
-
-/* Transmit packets after encapsulating */
-int
-vxlan_tx_pkts(uint16_t port_id, uint16_t queue_id,
-		struct rte_mbuf **tx_pkts, uint16_t nb_pkts) {
-	int ret = 0;
-	uint16_t i;
-
-	for (i = 0; i < nb_pkts; i++)
-		vxlan_tx_process(queue_id, tx_pkts[i]);
-
-	ret = rte_eth_tx_burst(port_id, queue_id, tx_pkts, nb_pkts);
-
-	return ret;
-}
-
-/* Check for decapsulation and pass packets directly to VIRTIO device */
-int
-vxlan_rx_pkts(int vid, struct rte_mbuf **pkts_burst, uint32_t rx_count)
-{
-	uint32_t i = 0;
-	uint32_t count = 0;
-	int ret;
-	struct rte_mbuf *pkts_valid[rx_count];
-
-	for (i = 0; i < rx_count; i++) {
-		if (enable_stats) {
-			rte_atomic64_add(
-				&dev_statistics[vid].rx_bad_ip_csum,
-				(pkts_burst[i]->ol_flags & PKT_RX_IP_CKSUM_BAD)
-				!= 0);
-			rte_atomic64_add(
-				&dev_statistics[vid].rx_bad_ip_csum,
-				(pkts_burst[i]->ol_flags & PKT_RX_L4_CKSUM_BAD)
-				!= 0);
-		}
-		ret = vxlan_rx_process(pkts_burst[i]);
-		if (unlikely(ret < 0))
-			continue;
-
-		pkts_valid[count] = pkts_burst[i];
-			count++;
-	}
-
-	ret = rte_vhost_enqueue_burst(vid, VIRTIO_RXQ, pkts_valid, count);
-	return ret;
-}
diff --git a/examples/tep_termination/vxlan_setup.h b/examples/tep_termination/vxlan_setup.h
deleted file mode 100644
index 4dc37d673d..0000000000
--- a/examples/tep_termination/vxlan_setup.h
+++ /dev/null
@@ -1,58 +0,0 @@ 
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2010-2015 Intel Corporation
- */
-
-#ifndef VXLAN_SETUP_H_
-#define VXLAN_SETUP_H_
-
-extern uint16_t nb_devices;
-extern uint16_t udp_port;
-extern uint8_t filter_idx;
-extern uint16_t ports[RTE_MAX_ETHPORTS];
-extern struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
-extern uint32_t enable_stats;
-extern struct device_statistics dev_statistics[MAX_DEVICES];
-extern uint8_t rx_decap;
-extern uint8_t tx_encap;
-
-typedef int (*ol_port_configure_t)(uint16_t port,
-				   struct rte_mempool *mbuf_pool);
-
-typedef int (*ol_tunnel_setup_t)(struct vhost_dev *vdev,
-				 struct rte_mbuf *m);
-
-typedef void (*ol_tunnel_destroy_t)(struct vhost_dev *vdev);
-
-typedef int (*ol_tx_handle_t)(uint16_t port_id, uint16_t queue_id,
-			      struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
-
-typedef int (*ol_rx_handle_t)(int vid, struct rte_mbuf **pkts,
-			      uint32_t count);
-
-typedef int (*ol_param_handle)(int vid);
-
-struct ol_switch_ops {
-	ol_port_configure_t        port_configure;
-	ol_tunnel_setup_t          tunnel_setup;
-	ol_tunnel_destroy_t        tunnel_destroy;
-	ol_tx_handle_t             tx_handle;
-	ol_rx_handle_t             rx_handle;
-	ol_param_handle            param_handle;
-};
-
-int
-vxlan_port_init(uint16_t port, struct rte_mempool *mbuf_pool);
-
-int
-vxlan_link(struct vhost_dev *vdev, struct rte_mbuf *m);
-
-void
-vxlan_unlink(struct vhost_dev *vdev);
-
-int
-vxlan_tx_pkts(uint16_t port_id, uint16_t queue_id,
-			struct rte_mbuf **tx_pkts, uint16_t nb_pkts);
-int
-vxlan_rx_pkts(int vid, struct rte_mbuf **pkts, uint32_t count);
-
-#endif /* VXLAN_SETUP_H_ */