i40e: add support for bpf_xdp_metadata_rx_vlan_tag()

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Introduce i40e_xdp_rx_vlan_tag() which takes the same approach as
i40e_process_skb_fields() to extract the VLAN tag from the RX
descriptor.

Tested with X710 adapter using xdp_hw_metadata, and confirmed that VLAN
tags match between bpf_xdp_metadata_rx_vlan_tag() and
skb->vlan_proto/vlan_tci.

Signed-off-by: Kohei Enju <kohei@enjuk.jp>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
Tested-by: Patryk Holda <patryk.holda@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

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Kohei Enju 2026-03-19 17:16:44 +00:00 • committed by Tony Nguyen

parent cff6f1378d

commit bbcaa1fe87

1 changed files with 19 additions and 0 deletions

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drivers/net/ethernet/intel/i40e/i40e_main.c

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