include/uapi/linux/xdp_diag.h

   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
  12 struct 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
  21 struct 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
  35 enum {
  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
  51 struct xdp_diag_info {
  52         __u32   ifindex;
  53         __u32   queue_id;
  54 };
  55
  56 struct xdp_diag_ring {
  57         __u32   entries; /*num descs */
  58 };
  59
  60 #define XDP_DU_F_ZEROCOPY (1 << 0)
  61
  62 struct 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
  74 struct 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 */