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 */
84
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