tests: Add GSO enabled tests

Change-Id: I409b060f64ae7c6787448ae519fd76d8384e9ffb
Signed-off-by: Martin Balaz <martin.balaz@pantheon.tech>

9 files changed, 151 insertions, 25 deletions

diff --git a/resources/libraries/python/QemuManager.py b/resources/libraries/python/QemuManager.py
index 547250e283..6436f69aec 100644
--- a/resources/libraries/python/QemuManager.py
+++ b/resources/libraries/python/QemuManager.py
@@ -144,6 +144,8 @@ class QemuManager:
         """
         qemu_id = kwargs[u"qemu_id"]
         name = kwargs[u"name"]
+        virtio_feature_mask = kwargs[u"virtio_feature_mask"] \
+            if u"virtio_feature_mask" in kwargs else None
 
         self.machines[name] = QemuUtils(
             node=self.nodes[kwargs[u"node"]],
@@ -168,16 +170,14 @@ class QemuManager:
             jumbo_frames=kwargs[u"jumbo"],
             queues=kwargs[u"queues"],
             queue_size=kwargs[u"perf_qemu_qsz"],
-            csum=kwargs[u"enable_csum"],
-            gso=kwargs[u"enable_gso"]
+            virtio_feature_mask=virtio_feature_mask
         )
         self.machines[name].add_vhost_user_if(
             f"/run/vpp/sock-{qemu_id}-2",
             jumbo_frames=kwargs[u"jumbo"],
             queues=kwargs[u"queues"],
             queue_size=kwargs[u"perf_qemu_qsz"],
-            csum=kwargs[u"enable_csum"],
-            gso=kwargs[u"enable_gso"]
+            virtio_feature_mask=virtio_feature_mask
         )
 
     def _c_vpp_2vfpt_ip4base_plen24(self, **kwargs):
diff --git a/resources/libraries/python/QemuUtils.py b/resources/libraries/python/QemuUtils.py
index 7491c71021..c215dfd96f 100644
--- a/resources/libraries/python/QemuUtils.py
+++ b/resources/libraries/python/QemuUtils.py
@@ -27,6 +27,8 @@ from resources.libraries.python.DUTSetup import DUTSetup
 from resources.libraries.python.OptionString import OptionString
 from resources.libraries.python.ssh import exec_cmd, exec_cmd_no_error
 from resources.libraries.python.topology import NodeType, Topology
+from resources.libraries.python.VhostUser import VirtioFeaturesFlags
+from resources.libraries.python.VhostUser import VirtioFeatureMask
 from resources.libraries.python.VppConfigGenerator import VppConfigGenerator
 
 __all__ = [u"QemuUtils"]
@@ -219,7 +221,7 @@ class QemuUtils:
 
     def add_vhost_user_if(
             self, socket, server=True, jumbo_frames=False, queue_size=None,
-            queues=1, csum=False, gso=False):
+            queues=1, virtio_feature_mask=None):
         """Add Vhost-user interface.
 
         :param socket: Path of the unix socket.
@@ -227,15 +229,13 @@ class QemuUtils:
         :param jumbo_frames: Set True if jumbo frames are used in the test.
         :param queue_size: Vring queue size.
         :param queues: Number of queues.
-        :param csum: Checksum offloading.
-        :param gso: Generic segmentation offloading.
+        :param virtio_feature_mask: Mask of virtio features to be enabled.
         :type socket: str
         :type server: bool
         :type jumbo_frames: bool
         :type queue_size: int
         :type queues: int
-        :type csum: bool
-        :type gso: bool
+        :type virtio_feature_mask: int
         """
         self._nic_id += 1
         self._params.add_with_value(
@@ -250,6 +250,14 @@ class QemuUtils:
             f"{self._nic_id:02x}"
         queue_size = f"rx_queue_size={queue_size},tx_queue_size={queue_size}" \
             if queue_size else u""
+        if virtio_feature_mask is None:
+            gso = False
+            csum = False
+        else:
+            gso = VirtioFeatureMask.is_feature_enabled(
+                virtio_feature_mask, VirtioFeaturesFlags.VIRTIO_NET_F_API_GSO)
+            csum = VirtioFeatureMask.is_feature_enabled(
+                virtio_feature_mask, VirtioFeaturesFlags.VIRTIO_NET_F_API_CSUM)
         self._params.add_with_value(
             u"device", f"virtio-net-pci,netdev=vhost{self._nic_id},mac={mac},"
             f"addr={self._nic_id+5}.0,mq=on,vectors={2 * queues + 2},"
diff --git a/resources/libraries/python/VhostUser.py b/resources/libraries/python/VhostUser.py
index cc9685d74d..22528b2b7f 100644
--- a/resources/libraries/python/VhostUser.py
+++ b/resources/libraries/python/VhostUser.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2019 Cisco and/or its affiliates.
+# Copyright (c) 2020 Cisco and/or its affiliates.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at:
@@ -13,6 +13,8 @@
 
 """Vhost-user interfaces library."""
 
+from enum import IntEnum
+
 from robot.api import logger
 
 from resources.libraries.python.PapiExecutor import PapiSocketExecutor
@@ -20,28 +22,53 @@ from resources.libraries.python.topology import NodeType, Topology
 from resources.libraries.python.InterfaceUtil import InterfaceUtil
 
 
+class VirtioFeaturesFlags(IntEnum):
+    """Virtio Features Flags."""
+    VIRTIO_NET_F_API_CSUM = 0
+    VIRTIO_NET_F_API_GUEST_CSUM = 1
+    VIRTIO_NET_F_API_GSO = 6
+    VIRTIO_NET_F_API_GUEST_TSO4 = 7
+    VIRTIO_NET_F_API_GUEST_TSO6 = 8
+    VIRTIO_NET_F_API_GUEST_UFO = 10
+    VIRTIO_NET_F_API_HOST_TSO4 = 11
+    VIRTIO_NET_F_API_HOST_TSO6 = 12
+    VIRTIO_NET_F_API_HOST_UFO = 14
+    VIRTIO_NET_F_API_MRG_RXBUF = 15
+    VIRTIO_NET_F_API_CTRL_VQ = 17
+    VIRTIO_NET_F_API_GUEST_ANNOUNCE = 21
+    VIRTIO_NET_F_API_MQ = 22
+    VIRTIO_F_API_ANY_LAYOUT = 27
+    VIRTIO_F_API_INDIRECT_DESC = 28
+
+
 class VhostUser:
     """Vhost-user interfaces L1 library."""
 
     @staticmethod
     def vpp_create_vhost_user_interface(
-            node, socket, is_server=False, enable_gso=False):
+            node, socket, is_server=False, virtio_feature_mask=None):
         """Create Vhost-user interface on VPP node.
 
         :param node: Node to create Vhost-user interface on.
         :param socket: Vhost-user interface socket path.
         :param is_server: Server side of connection. Default: False
-        :param enable_gso: Generic segmentation offloading. Default: False
+        :param virtio_feature_mask: Mask of virtio features to be enabled.
         :type node: dict
         :type socket: str
         :type is_server: bool
-        :type enable_gso: bool
+        :type virtio_feature_mask: int
         :returns: SW interface index.
         :rtype: int
         """
         cmd = u"create_vhost_user_if"
         err_msg = f"Failed to create Vhost-user interface " \
             f"on host {node[u'host']}"
+        if virtio_feature_mask is None:
+            enable_gso = False
+        else:
+            enable_gso = VirtioFeatureMask.is_feature_enabled(
+                virtio_feature_mask, VirtioFeaturesFlags.VIRTIO_NET_F_API_GSO
+            )
         args = dict(
             is_server=bool(is_server),
             sock_filename=str(socket),
@@ -123,3 +150,42 @@ class VhostUser:
 
         logger.debug(f"Vhost-user details:\n{details}")
         return details
+
+
+class VirtioFeatureMask:
+    """Virtio features utilities"""
+
+    @staticmethod
+    def create_virtio_feature_mask(**kwargs):
+        """Create virtio feature mask with feature bits set according to kwargs.
+        :param kwargs: Key-value pairs of feature names and it's state
+        :type kwargs: dict
+        """
+        virtio_feature_mask = 0
+
+        if u"all" in kwargs and kwargs[u"all"] is True:
+            for virtio_feature_flag in VirtioFeaturesFlags:
+                virtio_feature_mask |= 1 << virtio_feature_flag.value
+        else:
+            for feature_name, enabled in kwargs.items():
+                virtio_feature_name = \
+                    u"VIRTIO_NET_F_API_" + feature_name.upper()
+                if virtio_feature_name not in VirtioFeaturesFlags.__members__:
+                    raise ValueError(u"Unsupported virtio feature flag name")
+                if enabled:
+                    virtio_feature_mask |= \
+                        1 << VirtioFeaturesFlags[virtio_feature_name].value
+
+        return virtio_feature_mask
+
+    @staticmethod
+    def is_feature_enabled(virtio_feature_mask, virtio_feature_flag):
+        """Checks if concrete virtio feature is enabled within
+         virtio_feature_mask
+        :param virtio_feature_mask: Mask of enabled virtio features
+        :param virtio_feature_flag: Checked virtio feature
+        :type virtio_feature_mask: int
+        :type virtio_feature_flag: VirtioFeaturesFlags
+        """
+        feature_flag_bit = 1 << virtio_feature_flag.value
+        return (virtio_feature_mask & feature_flag_bit) > 0
diff --git a/resources/libraries/robot/ip/ip4.robot b/resources/libraries/robot/ip/ip4.robot
index f61466bf4e..0220fe29f6 100644
--- a/resources/libraries/robot/ip/ip4.robot
+++ b/resources/libraries/robot/ip/ip4.robot
@@ -319,6 +319,8 @@
 | | ... | - nf_nodes - Number of guest VMs. Type: integer
 | | ... | - testpmd_mac - Switch for testpmd_mac test configuration.
 | | ... | Type: boolean
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Note:*
 | | ... | Socket paths for VM are defined in following format:
@@ -331,6 +333,7 @@
 | | ... | topology \| 1 \|
 | |
 | | [Arguments] | ${nf_nodes}=${1} | ${testpmd_mac}=${FALSE}
+| | ... | ${virtio_feature_mask}=${None}
 | |
 | | Set interfaces in path up
 | | ${fib_table_1}= | Set Variable | ${101}
@@ -359,6 +362,7 @@
 | | | Configure vhost interfaces | ${dut1}
 | | | ... | /var/run/vpp/sock-${number}-1 | /var/run/vpp/sock-${number}-2
 | | | ... | dut1-vhost-${number}-if1 | dut1-vhost-${number}-if2
+| | | ... | virtio_feature_mask=${virtio_feature_mask}
 | | | Set Interface State | ${dut1} | ${dut1-vhost-${number}-if1} | up
 | | | Set Interface State | ${dut1} | ${dut1-vhost-${number}-if2} | up
 | | | Add Fib Table | ${dut1} | ${fib_table_1}
@@ -404,6 +408,8 @@
 | |
 | | ... | *Arguments:*
 | | ... | - nf_nodes - Number of guest VMs. Type: integer
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Note:*
 | | ... | Socket paths for VM are defined in following format:
@@ -416,6 +422,7 @@
 | | ... | topology \| 1 \|
 | |
 | | [Arguments] | ${nf_nodes}=${1} | ${testpmd_mac}=${FALSE}
+| | ... | ${virtio_feature_mask}=${None}
 | |
 | | Set interfaces in path up
 | | ${fib_table_1}= | Set Variable | ${101}
@@ -458,11 +465,13 @@
 | | | Configure vhost interfaces | ${dut1}
 | | | ... | /var/run/vpp/sock-${number}-1 | /var/run/vpp/sock-${number}-2
 | | | ... | dut1-vhost-${number}-if1 | dut1-vhost-${number}-if2
+| | | ... | virtio_feature_mask=${virtio_feature_mask}
 | | | Set Interface State | ${dut1} | ${dut1-vhost-${number}-if1} | up
 | | | Set Interface State | ${dut1} | ${dut1-vhost-${number}-if2} | up
 | | | Configure vhost interfaces | ${dut2}
 | | | ... | /var/run/vpp/sock-${number}-1 | /var/run/vpp/sock-${number}-2
 | | | ... | dut2-vhost-${number}-if1 | dut2-vhost-${number}-if2
+| | | ... | virtio_feature_mask=${virtio_feature_mask}
 | | | Set Interface State | ${dut2} | ${dut2-vhost-${number}-if1} | up
 | | | Set Interface State | ${dut2} | ${dut2-vhost-${number}-if2} | up
 | | | Add Fib Table | ${dut1} | ${fib_table_1}
diff --git a/resources/libraries/robot/ip/ip6.robot b/resources/libraries/robot/ip/ip6.robot
index 8ba0689dc9..ec22c5511b 100644
--- a/resources/libraries/robot/ip/ip6.robot
+++ b/resources/libraries/robot/ip/ip6.robot
@@ -175,6 +175,8 @@
 | |
 | | ... | *Arguments:*
 | | ... | - nf_nodes - Number of guest VMs. Type: integer
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Note:*
 | | ... | Socket paths for VM are defined in following format:
@@ -186,7 +188,7 @@
 | | ... | \| IPv6 forwarding with Vhost-User initialized in a 2-node circular\
 | | ... | topology \| 1 \|
 | |
-| | [Arguments] | ${nf_nodes}=${1}
+| | [Arguments] | ${nf_nodes}=${1} | ${virtio_feature_mask}=${None}
 | |
 | | Vpp Interfaces RA Suppress On All Nodes | ${nodes}
 | | Set interfaces in path up
@@ -221,6 +223,7 @@
 | | | Configure vhost interfaces | ${dut1}
 | | | ... | /var/run/vpp/sock-${number}-1 | /var/run/vpp/sock-${number}-2
 | | | ... | dut1-vhost-${number}-if1 | dut1-vhost-${number}-if2
+| | | ... | virtio_feature_mask=${virtio_feature_mask}
 | | | Set Interface State | ${dut1} | ${dut1-vhost-${number}-if1} | up
 | | | Set Interface State | ${dut1} | ${dut1-vhost-${number}-if2} | up
 | | | Add Fib Table | ${dut1} | ${fib_table_1} | ipv6=${True}
diff --git a/resources/libraries/robot/l2/l2_bridge_domain.robot b/resources/libraries/robot/l2/l2_bridge_domain.robot
index bb533e3e05..543c01c3ba 100644
--- a/resources/libraries/robot/l2/l2_bridge_domain.robot
+++ b/resources/libraries/robot/l2/l2_bridge_domain.robot
@@ -100,6 +100,8 @@
 | | ... | - dut - DUT node. Type: string
 | | ... | - nf_chain - NF chain. Type: integer
 | | ... | - nf_nodes - Number of NFs nodes per chain. Type: integer
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Note:*
 | | ... | Socket paths for VM are defined in following format:
@@ -112,6 +114,7 @@
 | | ... | \| 1 \| 1 \|
 | |
 | | [Arguments] | ${dut} | ${nf_chain}=${1} | ${nf_nodes}=${1}
+| | ... | ${virtio_feature_mask}=${None}
 | |
 | | ${bd_id1}= | Evaluate | ${nf_nodes} * (${nf_chain} - 1) + ${nf_chain}
 | | ${bd_id2}= | Evaluate | ${nf_nodes} * ${nf_chain} + ${nf_chain}
@@ -127,6 +130,7 @@
 | | | ... | ${nodes['${dut}']}
 | | | ... | /var/run/vpp/sock-${qemu_id}-1 | /var/run/vpp/sock-${qemu_id}-2
 | | | ... | ${dut}-vhost-${qemu_id}-if1 | ${dut}-vhost-${qemu_id}-if2
+| | | ... | virtio_feature_mask=${virtio_feature_mask}
 | | | ${bd_id1}= | Evaluate | ${qemu_id} + (${nf_chain} - 1)
 | | | ${bd_id2}= | Evaluate | ${bd_id1} + 1
 | | | Add interface to bridge domain
@@ -145,16 +149,20 @@
 | | ... | *Arguments:*
 | | ... | - nf_chain - NF chain. Type: integer
 | | ... | - nf_nodes - Number of NFs nodes per chain. Type: integer
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Example:*
 | |
 | | ... | \| Initialize L2 bridge domains with Vhost-User \| 1 \| 1 \|
 | |
 | | [Arguments] | ${nf_chain}=${1} | ${nf_nodes}=${1}
+| | ... | ${virtio_feature_mask}=${None}
 | |
 | | FOR | ${dut} | IN | @{duts}
 | | | Initialize L2 bridge domains with Vhost-User on node
 | | | ... | ${dut} | nf_chain=${nf_chain} | nf_nodes=${nf_nodes}
+| | | ... | virtio_feature_mask=${virtio_feature_mask}
 | | END
 
 | Initialize L2 bridge domains for multiple chains with Vhost-User
@@ -170,6 +178,8 @@
 | | ... | - nf_nodes - Number of NFs nodes per chain. Type: integer
 | | ... | - start - Id of first chain, allows to add chains during test.
 | | ... |     Type: integer
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Example:*
 | |
@@ -177,11 +187,13 @@
 | | ... | \| 3 \| 1 \| 2 \|
 | |
 | | [Arguments] | ${nf_chains}=${1} | ${nf_nodes}=${1} | ${start}=${1}
+| | ... | ${virtio_feature_mask}=${None}
 | |
 | | Set interfaces in path up
 | | FOR | ${nf_chain} | IN RANGE | ${start} | ${nf_chains} + 1
 | | | Initialize L2 bridge domains with Vhost-User
 | | | ... | nf_chain=${nf_chain} | nf_nodes=${nf_nodes}
+| | | ... | virtio_feature_mask=${virtio_feature_mask}
 | | END
 
 | Initialize L2 bridge domain with VXLANoIPv4 in 3-node circular topology
@@ -281,13 +293,15 @@
 | | ... | *Arguments:*
 | | ... | - bd_id1 - Bridge domain ID. Type: integer
 | | ... | - bd_id2 - Bridge domain ID. Type: integer
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Example:*
 | |
 | | ... | \| L2 bridge domains with Vhost-User and VXLANoIPv4 initialized in a\
 | | ... | 3-node circular topology \| 1 \| 2 \|
 | |
-| | [Arguments] | ${bd_id1} | ${bd_id2}
+| | [Arguments] | ${bd_id1} | ${bd_id2} | ${virtio_feature_mask}=${None}
 | |
 | | VPP Interface Set IP Address
 | | ... | ${dut1} | ${DUT1_${int}2}[0] | 172.16.0.1 | 24
@@ -300,6 +314,7 @@
 | | ... | ${dut2} | 24 | 172.16.0.2 | 172.16.0.1
 | | Configure vhost interfaces | ${dut1}
 | | ... | /var/run/vpp/sock-1-${bd_id1} | /var/run/vpp/sock-1-${bd_id2}
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Add interface to bridge domain
 | | ... | ${dut1} | ${DUT1_${int}1}[0] | ${bd_id1}
 | | Add interface to bridge domain
@@ -310,6 +325,7 @@
 | | ... | ${dut1} | ${dut1s_vxlan} | ${bd_id2}
 | | Configure vhost interfaces | ${dut2}
 | | ... | /var/run/vpp/sock-1-${bd_id1} | /var/run/vpp/sock-1-${bd_id2}
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Add interface to bridge domain
 | | ... | ${dut2} | ${dut2s_vxlan} | ${bd_id1}
 | | Add interface to bridge domain
@@ -387,6 +403,8 @@
 | | ... | - bd_id2 - Bridge domain ID. Type: integer
 | | ... | - subid - ID of the sub-interface to be created. Type: string
 | | ... | - tag_rewrite - Method of tag rewrite. Type: string
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Example:*
 | |
@@ -394,6 +412,7 @@
 | | ... | topology \| 1 \| 2 \| 10 \| pop-1 \|
 | |
 | | [Arguments] | ${bd_id1} | ${bd_id2} | ${subid} | ${tag_rewrite}
+| | ... | ${virtio_feature_mask}=${None}
 | |
 | | ${dut2_status} | ${value}= | Run Keyword And Ignore Error
 | | ... | Variable Should Exist | ${dut2}
@@ -414,6 +433,7 @@
 | | ... | ${dut1} | ${subif_index_1} | TAG_REWRITE_METHOD=${tag_rewrite}
 | | Configure vhost interfaces | ${dut1}
 | | ... | /var/run/vpp/sock-1-${bd_id1} | /var/run/vpp/sock-1-${bd_id2}
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Add interface to bridge domain
 | | ... | ${dut1} | ${DUT1_${int}1}[0] | ${bd_id1}
 | | Add interface to bridge domain
@@ -425,6 +445,7 @@
 | | Run Keyword If | '${dut2_status}' == 'PASS'
 | | ... | Configure vhost interfaces | ${dut2}
 | | ... | /var/run/vpp/sock-1-${bd_id1} | /var/run/vpp/sock-1-${bd_id2}
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Run Keyword If | '${dut2_status}' == 'PASS'
 | | ... | Add interface to bridge domain | ${dut2} | ${subif_index_2}
 | | ... | ${bd_id1}
@@ -454,6 +475,8 @@
 | | ... | - tag_rewrite - Method of tag rewrite. Type: string
 | | ... | - bond_mode - Link bonding mode. Type: string
 | | ... | - lb_mode - Load balance mode. Type: string
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Example:*
 | |
@@ -462,7 +485,7 @@
 | | ... | \| 10 \| pop-1 \| xor \| l34 \|
 | |
 | | [Arguments] | ${bd_id1} | ${bd_id2} | ${subid} | ${tag_rewrite}
-| | ... | ${bond_mode} | ${lb_mode}
+| | ... | ${bond_mode} | ${lb_mode} | ${virtio_feature_mask}=${None}
 | |
 | | Set interfaces in path up
 | | ${dut1_eth_bond_if1}= | VPP Create Bond Interface
@@ -494,6 +517,7 @@
 | | ... | ${dut2} | ${subif_index_2} | ${tag_rewrite}
 | | Configure vhost interfaces | ${dut1}
 | | ... | /var/run/vpp/sock-1-${bd_id1} | /var/run/vpp/sock-1-${bd_id2}
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Add interface to bridge domain
 | | ... | ${dut1} | ${DUT1_${int}1}[0] | ${bd_id1}
 | | Add interface to bridge domain
@@ -504,6 +528,7 @@
 | | ... | ${dut1} | ${subif_index_1} | ${bd_id2}
 | | Configure vhost interfaces | ${dut2}
 | | ... | /var/run/vpp/sock-1-${bd_id1} | /var/run/vpp/sock-1-${bd_id2}
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Add interface to bridge domain
 | | ... | ${dut2} | ${subif_index_2} | ${bd_id1}
 | | Add interface to bridge domain
diff --git a/resources/libraries/robot/l2/l2_xconnect.robot b/resources/libraries/robot/l2/l2_xconnect.robot
index ea4d6afcef..fdbd1dca61 100644
--- a/resources/libraries/robot/l2/l2_xconnect.robot
+++ b/resources/libraries/robot/l2/l2_xconnect.robot
@@ -108,6 +108,8 @@
 | | ... | *Arguments:*
 | | ... | - dut - DUT node. Type: string
 | | ... | - nf_nodes - VM count. Type: integer
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Note:*
 | | ... | Socket paths for VM are defined in following format:
@@ -118,7 +120,7 @@
 | |
 | | ... | \| Initialize L2 xconnect with Vhost-User on node \| DUT1 \| 1 \|
 | |
-| | [Arguments] | ${dut} | ${nf_nodes}=${1}
+| | [Arguments] | ${dut} | ${nf_nodes}=${1} | ${virtio_feature_mask}=${None}
 | |
 | | FOR | ${number} | IN RANGE | 1 | ${nf_nodes}+1
 | | | ${sock1}= | Set Variable | /run/vpp/sock-${number}-1
@@ -127,6 +129,7 @@
 | | | Configure vhost interfaces | ${nodes['${dut}']}
 | | | ... | ${sock1} | ${sock2} | ${dut}-vhost-${number}-if1
 | | | ... | ${dut}-vhost-${number}-if2
+| | | ... | virtio_feature_mask=${virtio_feature_mask}
 | | | ${dut_xconnect_if1}= | Set Variable If | ${number}==1
 | | | ... | ${${dut}_${int}1}[0]
 | | | ... | ${${dut}-vhost-${prev_index}-if2}
@@ -145,16 +148,18 @@
 | |
 | | ... | *Arguments:*
 | | ... | - nf_nodes - VM count. Type: integer
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Example:*
 | |
 | | ... | \| Initialize L2 xconnect with Vhost-User \| 1 \|
 | |
-| | [Arguments] | ${nf_nodes}=${1}
+| | [Arguments] | ${nf_nodes}=${1} | ${virtio_feature_mask}=${None}
 | |
 | | FOR | ${dut} | IN | @{duts}
 | | | Initialize L2 xconnect with Vhost-User on node | ${dut}
-| | | ... | nf_nodes=${nf_nodes}
+| | | ... | nf_nodes=${nf_nodes} | virtio_feature_mask=${virtio_feature_mask}
 | | END
 
 | Initialize L2 xconnect with Vhost-User and VLAN in circular topology
@@ -166,13 +171,15 @@
 | | ... | *Arguments:*
 | | ... | - subid - ID of the sub-interface to be created. Type: string
 | | ... | - tag_rewrite - Method of tag rewrite. Type: string
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Example:*
 | |
 | | ... | \| L2 xconnect with Vhost-User and VLAN initialized in a 3-node\
 | | ... | circular topology \| 10 \| pop-1 \|
 | |
-| | [Arguments] | ${subid} | ${tag_rewrite}
+| | [Arguments] | ${subid} | ${tag_rewrite} | ${virtio_feature_mask}=${None}
 | |
 | | ${dut2_status} | ${value}= | Run Keyword And Ignore Error
 | | ... | Variable Should Exist | ${dut2}
@@ -193,6 +200,7 @@
 | | ... | ${dut1} | ${subif_index_1} | TAG_REWRITE_METHOD=${tag_rewrite}
 | | Configure vhost interfaces
 | | ... | ${dut1} | /run/vpp/sock-1-1 | /run/vpp/sock-1-2
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Configure L2XC
 | | ... | ${dut1} | ${DUT1_${int}1}[0] | ${vhost_if1}
 | | Configure L2XC
@@ -200,6 +208,7 @@
 | | Run Keyword If | '${dut2_status}' == 'PASS'
 | | ... | Configure vhost interfaces
 | | ... | ${dut2} | /run/vpp/sock-1-1 | /run/vpp/sock-1-2
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Run Keyword If | '${dut2_status}' == 'PASS'
 | | ... | Configure L2XC | ${dut2} | ${subif_index_2} | ${vhost_if1}
 | | Run Keyword If | '${dut2_status}' == 'PASS'
@@ -219,6 +228,8 @@
 | | ... | - tag_rewrite - Method of tag rewrite. Type: string
 | | ... | - bond_mode - Link bonding mode. Type: string
 | | ... | - lb_mode - Load balance mode. Type: string
+| | ... | - virtio_feature_mask - Enabled Virtio features (Optional).
+| | ... | Type: integer
 | |
 | | ... | *Example:*
 | |
@@ -226,6 +237,7 @@
 | | ... | bonding in 3-node circular topology \| 10 \| pop-1 \| xor \| l34 \|
 | |
 | | [Arguments] | ${subid} | ${tag_rewrite} | ${bond_mode} | ${lb_mode}
+| | ... | ${virtio_feature_mask}=${None}
 | |
 | | Set interfaces in path up
 | | ${dut1_eth_bond_if1}= | VPP Create Bond Interface
@@ -257,12 +269,14 @@
 | | ... | ${dut2} | ${subif_index_2} | ${tag_rewrite}
 | | Configure vhost interfaces
 | | ... | ${dut1} | /run/vpp/sock-1-1 | /run/vpp/sock-1-2
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Configure L2XC
 | | ... | ${dut1} | ${DUT1_${int}1}[0] | ${vhost_if1}
 | | Configure L2XC
 | | ... | ${dut1} | ${subif_index_1} | ${vhost_if2}
 | | Configure vhost interfaces
 | | ... | ${dut2} | /run/vpp/sock-1-1 | /run/vpp/sock-1-2
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | Configure L2XC
 | | ... | ${dut2} | ${subif_index_2} | ${vhost_if1}
 | | Configure L2XC
diff --git a/resources/libraries/robot/shared/default.robot b/resources/libraries/robot/shared/default.robot
index 641cfa5cb1..f060032b0c 100644
--- a/resources/libraries/robot/shared/default.robot
+++ b/resources/libraries/robot/shared/default.robot
@@ -38,6 +38,7 @@
 | Library | resources.libraries.python.TGSetup
 | Library | resources.libraries.python.topology.Topology
 | Library | resources.libraries.python.Trace
+| Library | resources.libraries.python.VhostUser.VirtioFeatureMask
 | Library | resources.libraries.python.VppCounters
 | Library | resources.libraries.python.VPPUtil
 |
diff --git a/resources/libraries/robot/shared/interfaces.robot b/resources/libraries/robot/shared/interfaces.robot
index 4fdc1ee0a6..b842f276ef 100644
--- a/resources/libraries/robot/shared/interfaces.robot
+++ b/resources/libraries/robot/shared/interfaces.robot
@@ -661,8 +661,8 @@
 | | ... | Type: string
 | | ... | - ${is_server} - Server side of connection (Optional).
 | | ... | Type: boolean
-| | ... | - ${enable_gso} - Generic segmentation offloading (Optional).
-| | ... | Type: boolean
+| | ... | - ${virtio_feature_mask} - Enabled Virtio feature flags (Optional).
+| | ... | Type: integer
 | |
 | | ... | _NOTE:_ This KW sets following test case variable:
 | | ... | - ${${vhost_if1}} - First Vhost-User interface.
@@ -675,14 +675,14 @@
 | |
 | | [Arguments] | ${dut_node} | ${sock1} | ${sock2} | ${vhost_if1}=vhost_if1
 | | ... | ${vhost_if2}=vhost_if2 | ${is_server}=${False}
-| | ... | ${enable_gso}=${False}
+| | ... | ${virtio_feature_mask}=${None}
 | |
 | | ${vhost_1}= | Vpp Create Vhost User Interface
 | | ... | ${dut_node} | ${sock1} | is_server=${is_server}
-| | ... | enable_gso=${enable_gso}
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | ${vhost_2}= | Vpp Create Vhost User Interface
 | | ... | ${dut_node} | ${sock2} | is_server=${is_server}
-| | ... | enable_gso=${enable_gso}
+| | ... | virtio_feature_mask=${virtio_feature_mask}
 | | ${vhost_1_key}= | Get Interface By SW Index | ${dut_node} | ${vhost_1}
 | | ${vhost_2_key}= | Get Interface By SW Index | ${dut_node} | ${vhost_2}
 | | ${vhost_1_mac}= | Get Interface MAC | ${dut_node} | ${vhost_1_key}