[Bug 1069] Testpmd parameter --enable-lro fails on Mellanox ConnectX-5

[bugzilla at dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=1069

            Bug ID: 1069
           Summary: Testpmd parameter --enable-lro fails on Mellanox
                    ConnectX-5
           Product: DPDK
           Version: 22.03
          Hardware: All
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev at dpdk.org
          Reporter: liangxing.wang at arm.com
  Target Milestone: ---

User tried to enable lro for Mellanox ConnectX5 (MT27800) card through below
dpdk testpmd cmd:

#################
    sudo  ./dpdk-testpmd -l 15-16 -a 0000:01:00.0,dv_flow_en=1 -v -- --txq=1
--rxq=1 --enable-lro -i

but always encountered below error:

#####################
EAL: Detected CPU lcores: 80
EAL: Detected NUMA nodes: 1
EAL: RTE Version: 'DPDK 22.03.0'
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: 32 hugepages of size 1073741824 reserved, but no mount                    
           ed hugetlbfs found for that size
EAL: VFIO support initialized
EAL: Probe PCI driver: mlx5_pci (15b3:1019) device: 0000:01                    
           :00.0 (socket 0)
testpmd: create a new mbuf pool <mb_pool_0>: n=155456, size                    
           =2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc

Warning! port-topology=paired and odd forward ports number,                    
            the last port will pair with itself.

Configuring Port 0 (socket 0)
Ethdev port_id=0 requested Rx offloads 0x10 doesn't match R                    
           x offloads capabilities 0x19620f in rte_eth_dev_configure()
Fail to configure port 0
EAL: Error - exiting with code: 1
  Cause: Start ports failed

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