[dpdk-dev] [Bug 403] i40e: cannot add 2 rte_flows with one matching TCP sport and the other dport

[dpdk-dev] [Bug 403] i40e: cannot add 2 rte_flows with one matching TCP sport and the other dport

[bugzilla]

https://bugs.dpdk.org/show_bug.cgi?id=403

            Bug ID: 403
           Summary: i40e: cannot add 2 rte_flows with one matching TCP
                    sport and the other dport
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: maxime.leroy@6wind.com
  Target Milestone: ---

With dpdk master (commit id d0e160a00233), I got the following error when I try
to create one rte_flow matching TCP dport and one matching TCP sport:

./build/app/testpmd  --legacy-mem     -c 1f -n 4 -w 0000:85:00.1 -- -i --rxq=1
--txq=1 --total-num-mbufs=10000
EAL: Detected 40 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Static memory layout is selected, amount of reserved memory can be
adjusted with -m or --socket-mem
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: No available hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: VFIO support initialized
EAL: PCI device 0000:85:00.1 on NUMA socket 1
EAL:   probe driver: 8086:1583 net_i40e
EAL:   using IOMMU type 1 (Type 1)
Interactive-mode selected
...
testpmd> flow create 0 ingress pattern eth / ipv4 / tcp dst is 179 / end
actions queue index 0 / end
Flow rule #0 created
testpmd> flow create 0 ingress pattern eth / ipv4 / tcp src is 180 / end
actions queue index 0 / end
port_flow_complain(): Caught PMD error type 13 (specific pattern item): cause:
0x2001582a0, Conflict with the first rule's input set.: Invalid argument

The message error is not very useful. Because these rules doesn't conflict.
These rules are working perfectly fine with other nic. Is It an hardware
limitation or a software limitation ?

Are there any documentation to know what is supported by the i40e nic with
rte_flow API ?

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