LXR linux/include/uapi/linux/xdp

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2/*
   3 * xdp_diag: interface for query/monitor XDP sockets
   4 * Copyright(c) 2019 Intel Corporation.
   5 */
   6
   7#ifndef _LINUX_XDP_DIAG_H
   8#define _LINUX_XDP_DIAG_H
   9
  10#include <linux/types.h>
  11
  12struct xdp_diag_req {
  13        __u8    sdiag_family;
  14        __u8    sdiag_protocol;
  15        __u16   pad;
  16        __u32   xdiag_ino;
  17        __u32   xdiag_show;
  18        __u32   xdiag_cookie[2];
  19};
  20
  21struct xdp_diag_msg {
  22        __u8    xdiag_family;
  23        __u8    xdiag_type;
  24        __u16   pad;
  25        __u32   xdiag_ino;
  26        __u32   xdiag_cookie[2];
  27};
  28
  29#define XDP_SHOW_INFO           (1 << 0) /* Basic information */
  30#define XDP_SHOW_RING_CFG       (1 << 1)
  31#define XDP_SHOW_UMEM           (1 << 2)
  32#define XDP_SHOW_MEMINFO        (1 << 3)
  33#define XDP_SHOW_STATS          (1 << 4)
  34
  35enum {
  36        XDP_DIAG_NONE,
  37        XDP_DIAG_INFO,
  38        XDP_DIAG_UID,
  39        XDP_DIAG_RX_RING,
  40        XDP_DIAG_TX_RING,
  41        XDP_DIAG_UMEM,
  42        XDP_DIAG_UMEM_FILL_RING,
  43        XDP_DIAG_UMEM_COMPLETION_RING,
  44        XDP_DIAG_MEMINFO,
  45        XDP_DIAG_STATS,
  46        __XDP_DIAG_MAX,
  47};
  48
  49#define XDP_DIAG_MAX (__XDP_DIAG_MAX - 1)
  50
  51struct xdp_diag_info {
  52        __u32   ifindex;
  53        __u32   queue_id;
  54};
  55
  56struct xdp_diag_ring {
  57        __u32   entries; /*num descs */
  58};
  59
  60#define XDP_DU_F_ZEROCOPY (1 << 0)
  61
  62struct xdp_diag_umem {
  63        __u64   size;
  64        __u32   id;
  65        __u32   num_pages;
  66        __u32   chunk_size;
  67        __u32   headroom;
  68        __u32   ifindex;
  69        __u32   queue_id;
  70        __u32   flags;
  71        __u32   refs;
  72};
  73
  74struct xdp_diag_stats {
  75        __u64   n_rx_dropped;
  76        __u64   n_rx_invalid;
  77        __u64   n_rx_full;
  78        __u64   n_fill_ring_empty;
  79        __u64   n_tx_invalid;
  80        __u64   n_tx_ring_empty;
  81};
  82
  83#endif /* _LINUX_XDP_DIAG_H */
  84