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1b42e07af1
By overlaying the struct gve_xdp_buff on top of the struct xdp_buff_xsk that AF_XDP utilizes, the driver records the 32 bit timestamp via the completion descriptor and the cached 64 bit NIC timestamp via gve_priv. The driver's implementation of xmo_rx_timestamp extends the timestamp to the full and up to date 64 bit timestamp and returns it to the user. gve_rx_xsk_dqo is modified to accept a pointer to the completion descriptor and no longer takes a buf_len explicitly as it can be pulled out of the descriptor. With this patch gve now supports bpf_xdp_metadata_rx_timestamp. Signed-off-by: Tim Hostetler <thostet@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Reviewed-by: Harshitha Ramamurthy <hramamurthy@google.com> Signed-off-by: Joshua Washington <joshwash@google.com> Link: https://patch.msgid.link/20251114211146.292068-5-joshwash@google.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>