Hi,
On 20/03/2026 6:00 PM, Dariusz Sosnowski wrote:
When L3/L4 mini CQE format is used with CQE compression
(rxq_cqe_comp_en set to 4 in lower 3 bits),
each mini CQE reports packet header info for relevant packet.
One bit in that header info is dedicated to CVLAN info,
used to determine whether CVLAN is present in the received packet.
This info is used to determine VLAN stripping info
when relevant offload is enabled.
Before this patch, users might have seen incorrectly set/unset
RTE_MBUF_F_RX_VLAN and RTE_MBUF_F_RX_VLAN_STRIPPED flags because:
- Struct for mlx5 mini CQE incorrectly defined the location
of packet header info byte - it was swapped with neighboring
reserved byte.
- CVLAN bit was checked incorrectly because of cast to uint16_t
and big endian change. It should be checked as uint8_t.
This patch addresses the above.
Fixes: 54c2d46b160f ("net/mlx5: support flow tag and packet header miniCQEs")
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Dariusz Sosnowski <[email protected]>
Acked-by: Viacheslav Ovsiienko <[email protected]>
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Patch applied to next-net-mlx,
Kindest regards
Raslan Darawsheh
