One open AF_XDP socket: the fd, its UMEM, the four rings, and the mmap regions backing them (kept so xsksetup_close can munmap them). More...

#include <xsksetup.h>

Data Fields
i64	fd
	the AF_XDP socket fd, -1 once closed
u8 *	umem
	UMEM base address.
usz	umem_len
	UMEM byte length.
xskring	rx
	RX ring (kernel -> app: received frames).
xskring	tx
	TX ring (app -> kernel: frames to send).
xskring	fill
	fill ring (app -> kernel: free RX frames)
xskring	comp
	completion ring (kernel -> app: finished TX frames)
void *	map_rx
	mmap region backing the rx ring
usz	map_rx_len
	byte length of map_rx
void *	map_tx
	mmap region backing the tx ring
usz	map_tx_len
	byte length of map_tx
void *	map_fill
	mmap region backing the fill ring
usz	map_fill_len
	byte length of map_fill
void *	map_comp
	mmap region backing the comp ring
usz	map_comp_len
	byte length of map_comp

Detailed Description

One open AF_XDP socket: the fd, its UMEM, the four rings, and the mmap regions backing them (kept so xsksetup_close can munmap them).

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

Data Fields