text: /* 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 */
  