:~/dpdk/build-742be6a$ sudo ./app/dpdk-testpmd -c 0xf0 -n 4 -a 0000:03:00.0 -- -i --port-topology=chained
EAL: Detected CPU lcores: 128
EAL: Detected NUMA nodes: 1
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: VFIO support initialized
EAL: Probe PCI driver: mlx5_pci (15b3:101f) device: 0000:03:00.0 (socket 0)
TELEMETRY: No legacy callbacks, legacy socket not created
testpmd: create a new mbuf pool <mb_pool_0>: n=171456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Interactive-mode selected
Configuring Port 0 (socket 0)
Port 0: B8:3F:D2:7F:DE:7A
Checking link statuses...
testpmd> start
testpmd> Done
io packet forwarding - ports=1 - cores=1 - streams=1 - NUMA support enabled, MP allocation mode: native
Logical Core 5 (socket 0) forwards packets on 1 streams:
  RX P=0/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00

  io packet forwarding packets/burst=32
  nb forwarding cores=1 - nb forwarding ports=1
  port 0: RX queue number: 1 Tx queue number: 1
    Rx offloads=0x0 Tx offloads=0x10000
    RX queue: 0
      RX desc=256 - RX free threshold=64
      RX threshold registers: pthresh=0 hthresh=0  wthresh=0
      RX Offloads=0x0
    TX queue: 0
      TX desc=256 - TX free threshold=0
      TX threshold registers: pthresh=0 hthresh=0  wthresh=0
      TX offloads=0x10000 - TX RS bit threshold=0
Telling cores to stop...
Waiting for lcores to finish...

  ---------------------- Forward statistics for port 0  ----------------------
  RX-packets: 3              RX-dropped: 0             RX-total: 3
  TX-packets: 3              TX-dropped: 0             TX-total: 3
  ----------------------------------------------------------------------------

  +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
  RX-packets: 3              RX-dropped: 0             RX-total: 3
  TX-packets: 3              TX-dropped: 0             TX-total: 3
  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Done.

Stopping port 0...
Stopping ports...
Done

Shutting down port 0...
Closing ports...
Port 0 is closed
Done

Bye...

:~/dpdk/build-742be6a$ cd ../build-6026bfa/
:~/dpdk/build-6026bfa$ cd ./app/dpdk-testpmd -c 0xf0 -n 4 -a 0000:03:00.0 -- -i --port-topology=chained
EAL: Detected CPU lcores: 128
EAL: Detected NUMA nodes: 1
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: VFIO support initialized
EAL: Probe PCI driver: mlx5_pci (15b3:101f) device: 0000:03:00.0 (socket 0)
TELEMETRY: No legacy callbacks, legacy socket not created
testpmd: create a new mbuf pool <mb_pool_0>: n=171456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Interactive-mode selected
Configuring Port 0 (socket 0)
Port 0: B8:3F:D2:7F:DE:7A
Checking link statuses...
testpmd> start
testpmd> pdump_register_rx_callbacks(): rx callback for port=0 queue=0, already exists
Done
io packet forwarding - ports=1 - cores=1 - streams=1 - NUMA support enabled, MP allocation mode: native
Logical Core 5 (socket 0) forwards packets on 1 streams:
  RX P=0/Q=0 (socket 0) -> TX P=0/Q=0 (socket 0) peer=02:00:00:00:00:00

  io packet forwarding packets/burst=32
  nb forwarding cores=1 - nb forwarding ports=1
  port 0: RX queue number: 1 Tx queue number: 1
    Rx offloads=0x0 Tx offloads=0x10000
    RX queue: 0
      RX desc=256 - RX free threshold=64
      RX threshold registers: pthresh=0 hthresh=0  wthresh=0
      RX Offloads=0x0
    TX queue: 0
      TX desc=256 - TX free threshold=0
      TX threshold registers: pthresh=0 hthresh=0  wthresh=0
      TX offloads=0x10000 - TX RS bit threshold=0
Telling cores to stop...
Waiting for lcores to finish...

  ---------------------- Forward statistics for port 0  ----------------------
  RX-packets: 13             RX-dropped: 0             RX-total: 13
  TX-packets: 13             TX-dropped: 0             TX-total: 13
  ----------------------------------------------------------------------------

  +++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
  RX-packets: 13             RX-dropped: 0             RX-total: 13
  TX-packets: 13             TX-dropped: 0             TX-total: 13
  ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Done.

Stopping port 0...
Stopping ports...
Done

Shutting down port 0...
mlx5_common: Failed to unregister mempool capture_mbufs for PD 0x55a6a78e5ca0: No such file or directory
Closing ports...
Port 0 is closed
Done

Bye...