Design

XDP is designed for high performance. It uses known techniques and applies selective constraints to achieve performance goals. XDP is also designed for programmability. New functionality can be implemented on the fly without needing kernel modification

Contents:

• Overall design
  • Programmability
  • Capabilities negotiation
  • Data plane split
• Requirements
  • Driver RX hook
  • Early drop
  • Write access to packet data
  • Header push and pop
  • Page per packet
  • Packet forwarding
  • RX bulking