xdpmac Struct Reference

Fixed-capacity ip -> mac cache. More...

#include <xdpmac.h>

Data Fields
u32	ip [XDPMAC_CAP]
	IPv4 key, network byte order; valid if used.
u8	mac [XDPMAC_CAP][6]
	Ethernet MAC learned for ip.
u8	used [XDPMAC_CAP]
	1 if the slot holds an entry
u32	clock
	next round-robin eviction victim

Detailed Description

Fixed-capacity ip -> mac cache.

Full and seeing a new ip, it evicts slots round-robin (clock walks 0..CAP-1 and wraps), so the oldest entry goes first. Zero-init via xdpmac_init().

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The documentation for this struct was generated from the following file:

• transport/io/xdp/xdpmac/xdpmac.h