bpf, i40e: add meta data support
Add support for XDP meta data when using build skb variant of the i40e driver. Implementation is analogous to the existing ixgbe and ixgbevf support for meta data from 366a88fe ("bpf, ixgbe: add meta data support") and be833332 ("ixgbevf: Add support for meta data"). With the build skb variant we get 192 bytes of extra headroom which can be used for encaps or meta data. Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NJohn Fastabend <john.fastabend@gmail.com> Tested-by: NJohn Fastabend <john.fastabend@gmail.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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