netif_rx
softnet_data
sk_buff
netif_rx_action
process_backlog
netif_receive_skb
ptype_base和ptype_all
eth_type_trans与帧类型
ip_rcv
ip_rcv_finish
ip_route_input
ip_route_input_slow
ip_rcv_options
skb->dst->input
pre-routing chain
ip_forward
自由主题