Hi DPDK community, I am new DPDK and trying to run DPDK testpmd with TSO enabled on Tx port and checksum on Rx port just like how it is mentioned here: https://doc.dpdk.org/dts/test_plans/tso_test_plan.html but with --enable-rx-cksum argument, I get following error: root@localhost:~# dpdk-testpmd -l 4-7 -n 4 -- -i --nb-cores=2 --eth-peer=0,xx:xx:xx:xx:xx:xx --eth-peer=1,xx:xx:xx:xx:xx:xx --forward-mode=mac --rxq=2 --txq=2 --enable-rx-cksum --rxd=512 --txd=512 --burst=32 --rxfreet=64 --mbcache=128 --portmask=0x3 --txpt=36 --txht=0 --txwt=0 --txfreet=32 --txrst=32 EAL: Detected 8 lcore(s) EAL: Detected 1 NUMA nodes EAL: Multi-process socket /var/run/dpdk/rte/mp_socket EAL: Selected IOVA mode 'PA' EAL: No available hugepages reported in hugepages-2048kB EAL: Probing VFIO support... EAL: VFIO support initialized EAL: Invalid NUMA socket, default to 0 EAL: Probe PCI driver: net_virtio (1af4:1000) device: 0000:00:06.0 (socket 0) EAL: using IOMMU type 8 (No-IOMMU) [63652.737684] vfio-pci 0000:00:06.0: vfio-noiommu device opened by user (dpdk-testpmd:2518) EAL: Ignore mapping IO port bar(0) EAL: Invalid NUMA socket, default to 0 EAL: Probe PCI driver: net_virtio (1af4:1000) device: 0000:00:06.1 (socket 0) [63652.744250] vfio-pci 0000:00:06.1: vfio-noiommu device opened by user (dpdk-testpmd:2518) EAL: Ignore mapping IO port bar(0) EAL: Invalid NUMA socket, default to 0 EAL: Probe PCI driver: net_virtio (1af4:1041) device: 0000:01:00.0 (socket 0) EAL: No legacy callbacks, legacy socket not created Interactive-mode selected Set mac packet forwarding mode testpmd: create a new mbuf pool : n=159744, size=2176, socket=0 testpmd: preferred mempool ops selected: ring_mp_mc Configuring Port 0 (socket 0) Ethdev port_id=0 requested Rx offloads 0xe doesn't match Rx offloads capabilities 0xa1d in rte_eth_dev_configure() Fail to configure port 0 EAL: Error - exiting with code: 1 Cause: Start ports failed Can someone help me with pointers to resolve this? Also the documentation here https://doc.dpdk.org/dts/test_plans/tso_test_plan.html to obtain performance figures with TSO enabled misses a lot of details. A detailed description about how to measure performance with TSO enabled with a packet created using scapy would be much appreciated. Thanks! Spoorthi