/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

/*

 * xdp_diag: interface for query/monitor XDP sockets

 * Copyright(c) 2019 Intel Corporation.

 */

#ifndef _LINUX_XDP_DIAG_H

#define _LINUX_XDP_DIAG_H

#include <linux/types.h>

struct xdp_diag_req {

	__u8	sdiag_family;

	__u8	sdiag_protocol;

	__u16	pad;

	__u32	xdiag_ino;

	__u32	xdiag_show;

	__u32	xdiag_cookie[2];

};

struct xdp_diag_msg {

	__u8	xdiag_family;

	__u8	xdiag_type;

	__u16	pad;

	__u32	xdiag_ino;

	__u32	xdiag_cookie[2];

};

#define XDP_SHOW_INFO		(1 << 0) /* Basic information */

#define XDP_SHOW_RING_CFG	(1 << 1)

#define XDP_SHOW_UMEM		(1 << 2)

#define XDP_SHOW_MEMINFO	(1 << 3)

#define XDP_SHOW_STATS		(1 << 4)

enum {

	XDP_DIAG_NONE,

	XDP_DIAG_INFO,

	XDP_DIAG_UID,

	XDP_DIAG_RX_RING,

	XDP_DIAG_TX_RING,

	XDP_DIAG_UMEM,

	XDP_DIAG_UMEM_FILL_RING,

	XDP_DIAG_UMEM_COMPLETION_RING,

	XDP_DIAG_MEMINFO,

	XDP_DIAG_STATS,

	__XDP_DIAG_MAX,

};

#define XDP_DIAG_MAX (__XDP_DIAG_MAX - 1)

struct xdp_diag_info {

	__u32	ifindex;

	__u32	queue_id;

};

struct xdp_diag_ring {

	__u32	entries; /*num descs */

};

#define XDP_DU_F_ZEROCOPY (1 << 0)

struct xdp_diag_umem {

	__u64	size;

	__u32	id;

	__u32	num_pages;

	__u32	chunk_size;

	__u32	headroom;

	__u32	ifindex;

	__u32	queue_id;

	__u32	flags;

	__u32	refs;

};

struct xdp_diag_stats {

	__u64	n_rx_dropped;

	__u64	n_rx_invalid;

	__u64	n_rx_full;

	__u64	n_fill_ring_empty;

	__u64	n_tx_invalid;

	__u64	n_tx_ring_empty;

};

#endif /* _LINUX_XDP_DIAG_H */