[dpdk-dev] [Bug 535] mlx5: vlan/qinq packets are not matched by eth/ipv4 RTE_FLOW

[dpdk-dev] [Bug 535] mlx5: vlan/qinq packets are not matched by eth/ipv4 RTE_FLOW

[bugzilla]

https://bugs.dpdk.org/show_bug.cgi?id=535

            Bug ID: 535
           Summary: mlx5: vlan/qinq packets are not matched by eth/ipv4
                    RTE_FLOW
           Product: DPDK
           Version: 19.11
          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 19.11.0, the following rte_flow created in test pmd:
 > flow create 0 ingress  pattern  eth type spec 0 type mask 0 / ipv4 / end
actions  mark id 2 / queue index 0 / end

was able to match ipv4 whatever if the packets has 0 or N vlan headers.
With dpdk 19.11.4, it's not anymore possible.

Only packets without vlan header are matched. It means that packet having the
type field in the ethernet header not equal to 0x800 are not matched. But in
the RTE_FLOW, the mask of the type field of the Ethernet item is set to 0.

By the way, I can also reproduce the issue with the master branch.

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