Enumeration MapType

Array (since Linux 3.19)

Array of maps (since Linux 4.12)

cgroup array (since Linux 4.8)

cgroup storage (since Linux 4.19)

CPU references (since Linux 4.15)

Netdevice references (since Linux 4.14)

Netdevice references (hashmap) (since Linux 5.4)

Hash (since Linux 3.19)

Hash of maps (since Linux 4.12)

LPM trie (longest-prefix match) (since Linux 4.11)

LRU hash (since Linux 4.10)

LRU per-CPU hash (since Linux 4.10)

Per-CPU array (since Linux 4.6)

precpu cgroup storage (since Linux 4.20)

Per-CPU hash (since Linux 4.6)

Perf events (since Linux 4.3)

Tail call (since Linux 4.2)

queue (since Linux 4.20)

reuseport sockarray (since Linux 4.19)

ring buffer (since Linux 5.8)

socket local storage (since Linux 5.2)

Socket references (hashmap) (since Linux 4.18)

Socket references (array) (since Linux 4.14)

stack (since Linux 4.20)

Stack trace (since Linux 4.6)

struct ops (since Linux 5.6)

AF_XDP socket (XSK) references (since Linux 4.18)