wired_srvxdp Struct Reference

One open AF_XDP driver instance: the socket/rings, the TX frame pool, the learned peer MAC cache, and — when this instance opened its own BPF redirect filter rather than joining a shared one — those BPF objects. More...

#include <srvxdp.h>

Data Fields
xsk	xsk
	AF_XDP socket, UMEM and four rings.
xskumem_alloc	txpool
	TX frame pool, UMEM frames 64..127.
xdpmac	macs
	peer ip -> mac reflect cache
u8	our_mac [6]
	learned from the first RX frame
int	have_mac
	0 until our_mac is learned
u32	ip_be
	cfg->ip, network byte order
u16	port
	cfg->port, host order
wired_srvxdpbpf	bpf
	BPF map/prog/link owned by this instance; fds are -1 when opened against a shared wired_srvxdpbpf (wired_srvxdp_open_shared).
int	bpf_owned
	1 when wired_srvxdp_open built bpf and close() must tear it down

Detailed Description

One open AF_XDP driver instance: the socket/rings, the TX frame pool, the learned peer MAC cache, and — when this instance opened its own BPF redirect filter rather than joining a shared one — those BPF objects.

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

• app/http3/server/srvxdp/srvxdp.h