Description of problem:

Version-Release number of selected component (if applicable):
5.14.0-284.57.1.el9_2.x86_64
openvswitch3.2-3.2.0-40.el9fdp.x86_64

[root@netqe03 ~]# ethtool -i enp13s0np0
driver: mlx5_core
version: 5.14.0-284.57.1.el9_2.x86_64
firmware-version: 28.37.1014 (MT_0000000909)
expansion-rom-version: 
bus-info: 0000:0d:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: yes

[root@netqe03 ~]# lspci|grep ConnectX-7
0d:00.0 Ethernet controller: Mellanox Technologies MT2910 Family [ConnectX-7]

How reproducible:

Steps to Reproduce:
Run ovs dpdk vhostuser pvp case on DUT server
1. build ovs dpdk bridge and add the dpdk port to it.
[root@netqe03 ~]# ovs-vsctl show
ccfa4996-fe36-4403-a098-07d9f6c62e6f
    Bridge ovsbr0
        datapath_type: netdev
        Port vhost1
            Interface vhost1
                type: dpdkvhostuserclient
                options: {vhost-server-path="/tmp/vhostuser/vhost1"}
        Port dpdk0
            Interface dpdk0
                type: dpdk
                options: {dpdk-devargs="0000:0d:00.0", n_rxq="4", n_rxq_desc="1024", n_txq_desc="1024"}
        Port ovsbr0
            Interface ovsbr0
                type: internal
        Port vhost0
            Interface vhost0
                type: dpdkvhostuserclient
                options: {vhost-server-path="/tmp/vhostuser/vhost0"}
    ovs_version: "3.2.2"

[root@netqe03 ~]# ovs-vsctl set interface dpdk0 mtu_request=9218
[root@netqe03 ~]# ovs-vsctl set interface vhost0 mtu_request=9218
[root@netqe03 ~]# ovs-vsctl set interface vhost1 mtu_request=9218

2. start guest with following guest xml

root@netqe03 ~]# virsh dumpxml g1
<domain type='kvm' id='1'>
  <name>g1</name>
  <uuid>7c31b8ea-9d35-4292-a1fe-70258deea922</uuid>
  <memory unit='KiB'>8388608</memory>
  <currentMemory unit='KiB'>8388608</currentMemory>
  <memoryBacking>
    <hugepages>
      <page size='1048576' unit='KiB'/>
    </hugepages>
    <locked/>
    <access mode='shared'/>
  </memoryBacking>
  <vcpu placement='static'>9</vcpu>
  <cputune>
    <vcpupin vcpu='0' cpuset='10'/>
    <vcpupin vcpu='1' cpuset='72'/>
    <vcpupin vcpu='2' cpuset='8'/>
    <vcpupin vcpu='3' cpuset='70'/>
    <vcpupin vcpu='4' cpuset='6'/>
    <vcpupin vcpu='5' cpuset='68'/>
    <vcpupin vcpu='6' cpuset='4'/>
    <vcpupin vcpu='7' cpuset='66'/>
    <vcpupin vcpu='8' cpuset='2'/>
    <emulatorpin cpuset='0,64'/>
  </cputune>
  <numatune>
    <memory mode='strict' nodeset='0'/>
  </numatune>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64' machine='pc-q35-rhel9.2.0'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pmu state='off'/>
    <vmport state='off'/>
    <ioapic driver='qemu'/>
  </features>
  <cpu mode='host-passthrough' check='none' migratable='on'>
    <feature policy='require' name='tsc-deadline'/>
    <numa>
      <cell id='0' cpus='0-8' memory='8388608' unit='KiB' memAccess='shared'/>
    </numa>
  </cpu>
  <clock offset='utc'>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <pm>
    <suspend-to-mem enabled='no'/>
    <suspend-to-disk enabled='no'/>
  </pm>
  <devices>
    <emulator>/usr/libexec/qemu-kvm</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='/var/lib/libvirt/images/g1.qcow2' index='1'/>
      <backingStore/>
      <target dev='vda' bus='virtio'/>
      <alias name='virtio-disk0'/>
      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
    </disk>
    <controller type='usb' index='0' model='none'>
      <alias name='usb'/>
    </controller>
    <controller type='pci' index='0' model='pcie-root'>
      <alias name='pcie.0'/>
    </controller>
    <controller type='pci' index='1' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='1' port='0x10'/>
      <alias name='pci.1'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </controller>
    <controller type='pci' index='2' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='2' port='0x11'/>
      <alias name='pci.2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </controller>
    <controller type='pci' index='3' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='3' port='0x8'/>
      <alias name='pci.3'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </controller>
    <controller type='pci' index='4' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='4' port='0x9'/>
      <alias name='pci.4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </controller>
    <controller type='pci' index='5' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='5' port='0xa'/>
      <alias name='pci.5'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </controller>
    <controller type='pci' index='6' model='pcie-root-port'>
      <model name='pcie-root-port'/>
      <target chassis='6' port='0xb'/>
      <alias name='pci.6'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </controller>
    <controller type='sata' index='0'>
      <alias name='ide'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
    </controller>
    <interface type='bridge'>
      <mac address='52:54:00:01:02:03'/>
      <source bridge='virbr0'/>
      <target dev='vnet0'/>
      <model type='virtio'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
    </interface>
    <interface type='vhostuser'>
      <mac address='00:de:ad:00:00:01'/>
      <source type='unix' path='/tmp/vhostuser/vhost0' mode='server'/>
      <target dev='vhost0'/>
      <model type='virtio'/>
      <driver name='vhost' queues='4' rx_queue_size='1024' tx_queue_size='1024' iommu='off' ats='off'>
        <host mrg_rxbuf='off'/>
      </driver>
      <alias name='net1'/>
      <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
    </interface>
    <interface type='vhostuser'>
      <mac address='00:de:ad:00:00:02'/>
      <source type='unix' path='/tmp/vhostuser/vhost1' mode='server'/>
      <target dev='vhost1'/>
      <model type='virtio'/>
      <driver name='vhost' queues='4' rx_queue_size='1024' tx_queue_size='1024' iommu='off' ats='off'>
        <host mrg_rxbuf='off'/>
      </driver>
      <alias name='net2'/>
      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/2'/>
      <target type='isa-serial' port='0'>
        <model name='isa-serial'/>
      </target>
      <alias name='serial0'/>
    </serial>
    <console type='pty' tty='/dev/pts/2'>
      <source path='/dev/pts/2'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <input type='mouse' bus='ps2'>
      <alias name='input0'/>
    </input>
    <input type='keyboard' bus='ps2'>
      <alias name='input1'/>
    </input>
    <graphics type='vnc' port='5900' autoport='yes' listen='0.0.0.0'>
      <listen type='address' address='0.0.0.0'/>
    </graphics>
    <audio id='1' type='none'/>
    <video>
      <model type='cirrus' vram='16384' heads='1' primary='yes'/>
      <alias name='video0'/>
      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
    </video>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
    </memballoon>
    <iommu model='intel'>
      <driver intremap='on' caching_mode='on' iotlb='on'/>
      <alias name='iommu0'/>
    </iommu>
  </devices>
  <seclabel type='dynamic' model='selinux' relabel='yes'>
    <label>system_u:system_r:svirt_t:s0:c30,c570</label>
    <imagelabel>system_u:object_r:svirt_image_t:s0:c30,c570</imagelabel>
  </seclabel>
  <seclabel type='dynamic' model='dac' relabel='yes'>
    <label>+107:+985</label>
    <imagelabel>+107:+985</imagelabel>
  </seclabel>
</domain>

3. start testpmd forward inside guest
[root@localhost ~]# dpdk-testpmd l 0-8 -n 1 --socket-mem 1024 – -i --forward-mode=io --burst=32 --rxd=8192 --txd=8192 --max-pkt-len=9600 --mbuf-size=9728 --nb-cores=8 --rxq=4 --txq=4 --mbcache=512  -auto-start
EAL: Detected CPU lcores: 98
EAL: Detected NUMA nodes: 1
EAL: Detected shared linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'PA'
EAL: VFIO support initialized
EAL: Probe PCI driver: net_virtio (1af4:1041) device: 0000:02:00.0 (socket -1)
eth_virtio_pci_init(): Failed to init PCI device
EAL: Requested device 0000:02:00.0 cannot be used
EAL: Probe PCI driver: net_virtio (1af4:1041) device: 0000:03:00.0 (socket -1)
EAL: Using IOMMU type 1 (Type 1)
EAL: Probe PCI driver: net_virtio (1af4:1041) device: 0000:04:00.0 (socket -1)
TELEMETRY: No legacy callbacks, legacy socket not created
Interactive-mode selected
Set io packet forwarding mode
Auto-start selected
Warning: NUMA should be configured manually by using --port-numa-config and --ring-numa-config parameters along with --numa.
testpmd: create a new mbuf pool <mb_pool_0>: n=278528, size=9728, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Configuring Port 0 (socket 0)
EAL: Error disabling MSI-X interrupts for fd 49
Port 0: 00:DE:AD:00:00:01
Configuring Port 1 (socket 0)
EAL: Error disabling MSI-X interrupts for fd 53
Port 1: 00:DE:AD:00:00:02
Checking link statuses...
Done
Start automatic packet forwarding
io packet forwarding - ports=2 - cores=8 - streams=8 - NUMA support enabled, MP allocation mode: native
Logical Core 1 (socket 0) forwards packets on 1 streams:
  RX P=0/Q=0 (socket 0) -> TX P=1/Q=0 (socket 0) peer=02:00:00:00:00:01
Logical Core 2 (socket 0) forwards packets on 1 streams:
  RX P=1/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00
Logical Core 3 (socket 0) forwards packets on 1 streams:
  RX P=0/Q=1 (socket 0) -> TX P=1/Q=1 (socket 0) peer=02:00:00:00:00:01
Logical Core 4 (socket 0) forwards packets on 1 streams:
  RX P=1/Q=1 (socket 0) -> TX P=0/Q=1 (socket 0) peer=02:00:00:00:00:00
Logical Core 5 (socket 0) forwards packets on 1 streams:
  RX P=0/Q=2 (socket 0) -> TX P=1/Q=2 (socket 0) peer=02:00:00:00:00:01
Logical Core 6 (socket 0) forwards packets on 1 streams:
  RX P=1/Q=2 (socket 0) -> TX P=0/Q=2 (socket 0) peer=02:00:00:00:00:00
Logical Core 7 (socket 0) forwards packets on 1 streams:
  RX P=0/Q=3 (socket 0) -> TX P=1/Q=3 (socket 0) peer=02:00:00:00:00:01
Logical Core 8 (socket 0) forwards packets on 1 streams:
  RX P=1/Q=3 (socket 0) -> TX P=0/Q=3 (socket 0) peer=02:00:00:00:00:00

  io packet forwarding packets/burst=32
  nb forwarding cores=8 - nb forwarding ports=2
  port 0: RX queue number: 4 Tx queue number: 4
    Rx offloads=0x0 Tx offloads=0x0
    RX queue: 0
      RX desc=8192 - RX free threshold=0
      RX threshold registers: pthresh=0 hthresh=0  wthresh=0
      RX Offloads=0x0
    TX queue: 0
      TX desc=8192 - TX free threshold=0
      TX threshold registers: pthresh=0 hthresh=0  wthresh=0
      TX offloads=0x0 - TX RS bit threshold=0
  port 1: RX queue number: 4 Tx queue number: 4
    Rx offloads=0x0 Tx offloads=0x0
    RX queue: 0
      RX desc=8192 - RX free threshold=0
      RX threshold registers: pthresh=0 hthresh=0  wthresh=0
      RX Offloads=0x0
    TX queue: 0
      TX desc=8192 - TX free threshold=0
      TX threshold registers: pthresh=0 hthresh=0  wthresh=0
      TX offloads=0x0 - TX RS bit threshold=0
testpmd> 

4. On trex server, send traffic with 9200byte packet.
./binary-search.py --traffic-generator=trex-txrx --frame-size=9200 --num-flows=1024 --max-loss-pct=0 --search-runtime=10 --validation-runtime=10 --rate-tolerance=10 --runtime-tolerance=10 --rate=25 --rate-unit=% --duplicate-packet-failure=retry-to-fail --negative-packet-loss=retry-to-fail --warmup-trial --warmup-trial-runtime=10 --rate=25 --rate-unit=% --one-shot=0 --src-macs=10:00:00:00:00:00 --dst-macs=20:00:00:00:00:00 --use-src-ip-flows=0 --use-dst-ip-flows=0 --use-src-mac-flows=1 --use-dst-mac-flows=0 --warmup-trial --warmup-trial-runtime=30 --use-src-ip-flows=1 --use-dst-ip-flows=1 --use-src-mac-flows=1 --use-dst-mac-flows=0 --traffic-direction=unidirectional --device-pairs=0:0

Actual results:
It can got 0 throughput when send the traffic with 9200byte packet
It can got the normal throughput(1.8mpps) when send the traffic with 9196byte packet

For testpmd detail output:
testpmd> set verbose 1
 src=10:00:00:00:ED:00 - dst=20:00:00:00:00:00 - pool=mb_pool_0 - type=0x0800 - length=9196 - nb_segs=1 - sw ptype: L2_ETHER L3_IPV4 L4_UDP  - l2_len=14 - l3_len=20 - l4_len=8 - Receive queue=0x0
  ol_flags: RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN RTE_MBUF_F_RX_IP_CKSUM_UNKNOWN RTE_MBUF_F_RX_OUTER_L4_CKSUM_UNKNOWN 
  src=10:00:00:00:F0:00 - dst=20:00:00:00:00:00 - pool=mb_pool_0 - type=0x0800 - length=9196 - nb_segs=1 - sw ptype: L2_ETHER L3_IPV4 L4_UDP  - l2_len=14 - l3_len=20 - l4_len=8 - Receive queue=0x0
  ol_flags: RTE_MBUF_F_RX_L4_CKSUM_UNKNOWN RTE_MBUF_F_RX_IP_CKSUM_UNKNOWN RTE_MBUF_F_RX_OUTER_L4_CKSUM_UNKNOWN 
  src=10:00:00:00:F1:00 - dst=20:00:00:00:00:00 - pool=mb_pool_0 - type=0x0800 - length=9196 - nb_segs=1 - sw ptype: L2_ETHER L3_IPV4 L4_UDP  - l2_len=14 - l3_len=20 - l4_len=8 - Receive queue=0x0
testpmd> stop
Telling cores to stop...
Waiting for lcores to finish...

  ------- Forward Stats for RX Port= 0/Queue= 0 -> TX Port= 1/Queue= 0 -------
  RX-packets: 30174          TX-packets: 30174          TX-dropped: 0             

  ------- Forward Stats for RX Port= 0/Queue= 1 -> TX Port= 1/Queue= 1 -------
  RX-packets: 8576           TX-packets: 8576           TX-dropped: 0             

  ------- Forward Stats for RX Port= 0/Queue= 2 -> TX Port= 1/Queue= 2 -------
  RX-packets: 8932           TX-packets: 8932           TX-dropped: 0             

  ------- Forward Stats for RX Port= 0/Queue= 3 -> TX Port= 1/Queue= 3 -------
  RX-packets: 6148           TX-packets: 6148           TX-dropped: 0             

  ---------------------- Forward statistics for port 0  ----------------------
  RX-packets: 53830          RX-dropped: 0             RX-total: 53830
  TX-packets: 0              TX-dropped: 0             TX-total: 0
  ----------------------------------------------------------------------------

  ---------------------- Forward statistics for port 1  ----------------------
  RX-packets: 0              RX-dropped: 0             RX-total: 0
  TX-packets: 53830          TX-dropped: 0             TX-total: 53830
  ----------------------------------------------------------------------------

  +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
  RX-packets: 53830          RX-dropped: 0             RX-total: 53830
  TX-packets: 53830          TX-dropped: 0             TX-total: 53830
  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Done.

[root@netqe03 ~]# ovs-ofctl dump-flows ovsbr0
 cookie=0x0, duration=15340.408s, table=0, n_packets=384729169, n_bytes=3536697745612, in_port=dpdk0 actions=output:vhost0
 cookie=0x0, duration=15340.398s, table=0, n_packets=350755787, n_bytes=3224278361624, in_port=vhost1 actions=output:dpdk0

trex binary-search log, see the attachment

Expected results:
It can got normal throughput when send the 9200byte traffic