1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef __NET_DROPMON_H 2 #ifndef __NET_DROPMON_H
3 #define __NET_DROPMON_H 3 #define __NET_DROPMON_H
4 4
5 #include <linux/types.h> 5 #include <linux/types.h>
6 #include <linux/netlink.h> 6 #include <linux/netlink.h>
7 7
8 struct net_dm_drop_point { 8 struct net_dm_drop_point {
9 __u8 pc[8]; 9 __u8 pc[8];
10 __u32 count; 10 __u32 count;
11 }; 11 };
12 12
13 #define is_drop_point_hw(x) do {\ 13 #define is_drop_point_hw(x) do {\
14 int ____i, ____j;\ 14 int ____i, ____j;\
15 for (____i = 0; ____i < 8; i ____i++)\ 15 for (____i = 0; ____i < 8; i ____i++)\
16 ____j |= x[____i];\ 16 ____j |= x[____i];\
17 ____j;\ 17 ____j;\
18 } while (0) 18 } while (0)
19 19
20 #define NET_DM_CFG_VERSION 0 20 #define NET_DM_CFG_VERSION 0
21 #define NET_DM_CFG_ALERT_COUNT 1 21 #define NET_DM_CFG_ALERT_COUNT 1
22 #define NET_DM_CFG_ALERT_DELAY 2 22 #define NET_DM_CFG_ALERT_DELAY 2
23 #define NET_DM_CFG_MAX 3 23 #define NET_DM_CFG_MAX 3
24 24
25 struct net_dm_config_entry { 25 struct net_dm_config_entry {
26 __u32 type; 26 __u32 type;
27 __u64 data __attribute__((aligned(8))) 27 __u64 data __attribute__((aligned(8)));
28 }; 28 };
29 29
30 struct net_dm_config_msg { 30 struct net_dm_config_msg {
31 __u32 entries; 31 __u32 entries;
32 struct net_dm_config_entry options[]; 32 struct net_dm_config_entry options[];
33 }; 33 };
34 34
35 struct net_dm_alert_msg { 35 struct net_dm_alert_msg {
36 __u32 entries; 36 __u32 entries;
37 struct net_dm_drop_point points[]; 37 struct net_dm_drop_point points[];
38 }; 38 };
39 39
40 struct net_dm_user_msg { 40 struct net_dm_user_msg {
41 union { 41 union {
42 struct net_dm_config_msg user; 42 struct net_dm_config_msg user;
43 struct net_dm_alert_msg alert; 43 struct net_dm_alert_msg alert;
44 } u; 44 } u;
45 }; 45 };
46 46
47 47
48 /* These are the netlink message types for thi 48 /* These are the netlink message types for this protocol */
49 49
50 enum { 50 enum {
51 NET_DM_CMD_UNSPEC = 0, 51 NET_DM_CMD_UNSPEC = 0,
52 NET_DM_CMD_ALERT, 52 NET_DM_CMD_ALERT,
53 NET_DM_CMD_CONFIG, 53 NET_DM_CMD_CONFIG,
54 NET_DM_CMD_START, 54 NET_DM_CMD_START,
55 NET_DM_CMD_STOP, 55 NET_DM_CMD_STOP,
56 NET_DM_CMD_PACKET_ALERT, 56 NET_DM_CMD_PACKET_ALERT,
57 NET_DM_CMD_CONFIG_GET, 57 NET_DM_CMD_CONFIG_GET,
58 NET_DM_CMD_CONFIG_NEW, 58 NET_DM_CMD_CONFIG_NEW,
59 NET_DM_CMD_STATS_GET, 59 NET_DM_CMD_STATS_GET,
60 NET_DM_CMD_STATS_NEW, 60 NET_DM_CMD_STATS_NEW,
61 _NET_DM_CMD_MAX, 61 _NET_DM_CMD_MAX,
62 }; 62 };
63 63
64 #define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1) 64 #define NET_DM_CMD_MAX (_NET_DM_CMD_MAX - 1)
65 65
66 /* 66 /*
67 * Our group identifiers 67 * Our group identifiers
68 */ 68 */
69 #define NET_DM_GRP_ALERT 1 69 #define NET_DM_GRP_ALERT 1
70 70
71 enum net_dm_attr { 71 enum net_dm_attr {
72 NET_DM_ATTR_UNSPEC, 72 NET_DM_ATTR_UNSPEC,
73 73
74 NET_DM_ATTR_ALERT_MODE, 74 NET_DM_ATTR_ALERT_MODE, /* u8 */
75 NET_DM_ATTR_PC, 75 NET_DM_ATTR_PC, /* u64 */
76 NET_DM_ATTR_SYMBOL, 76 NET_DM_ATTR_SYMBOL, /* string */
77 NET_DM_ATTR_IN_PORT, 77 NET_DM_ATTR_IN_PORT, /* nested */
78 NET_DM_ATTR_TIMESTAMP, 78 NET_DM_ATTR_TIMESTAMP, /* u64 */
79 NET_DM_ATTR_PROTO, 79 NET_DM_ATTR_PROTO, /* u16 */
80 NET_DM_ATTR_PAYLOAD, 80 NET_DM_ATTR_PAYLOAD, /* binary */
81 NET_DM_ATTR_PAD, 81 NET_DM_ATTR_PAD,
82 NET_DM_ATTR_TRUNC_LEN, 82 NET_DM_ATTR_TRUNC_LEN, /* u32 */
83 NET_DM_ATTR_ORIG_LEN, 83 NET_DM_ATTR_ORIG_LEN, /* u32 */
84 NET_DM_ATTR_QUEUE_LEN, 84 NET_DM_ATTR_QUEUE_LEN, /* u32 */
85 NET_DM_ATTR_STATS, 85 NET_DM_ATTR_STATS, /* nested */
86 NET_DM_ATTR_HW_STATS, 86 NET_DM_ATTR_HW_STATS, /* nested */
87 NET_DM_ATTR_ORIGIN, 87 NET_DM_ATTR_ORIGIN, /* u16 */
88 NET_DM_ATTR_HW_TRAP_GROUP_NAME, 88 NET_DM_ATTR_HW_TRAP_GROUP_NAME, /* string */
89 NET_DM_ATTR_HW_TRAP_NAME, 89 NET_DM_ATTR_HW_TRAP_NAME, /* string */
90 NET_DM_ATTR_HW_ENTRIES, 90 NET_DM_ATTR_HW_ENTRIES, /* nested */
91 NET_DM_ATTR_HW_ENTRY, 91 NET_DM_ATTR_HW_ENTRY, /* nested */
92 NET_DM_ATTR_HW_TRAP_COUNT, 92 NET_DM_ATTR_HW_TRAP_COUNT, /* u32 */
93 NET_DM_ATTR_SW_DROPS, 93 NET_DM_ATTR_SW_DROPS, /* flag */
94 NET_DM_ATTR_HW_DROPS, 94 NET_DM_ATTR_HW_DROPS, /* flag */
95 NET_DM_ATTR_FLOW_ACTION_COOKIE, 95 NET_DM_ATTR_FLOW_ACTION_COOKIE, /* binary */
96 NET_DM_ATTR_REASON, 96 NET_DM_ATTR_REASON, /* string */
97 97
98 __NET_DM_ATTR_MAX, 98 __NET_DM_ATTR_MAX,
99 NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 99 NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1
100 }; 100 };
101 101
102 /** 102 /**
103 * enum net_dm_alert_mode - Alert mode. 103 * enum net_dm_alert_mode - Alert mode.
104 * @NET_DM_ALERT_MODE_SUMMARY: A summary of re 104 * @NET_DM_ALERT_MODE_SUMMARY: A summary of recent drops is sent to user space.
105 * @NET_DM_ALERT_MODE_PACKET: Each dropped pac 105 * @NET_DM_ALERT_MODE_PACKET: Each dropped packet is sent to user space along
106 * with metadata. 106 * with metadata.
107 */ 107 */
108 enum net_dm_alert_mode { 108 enum net_dm_alert_mode {
109 NET_DM_ALERT_MODE_SUMMARY, 109 NET_DM_ALERT_MODE_SUMMARY,
110 NET_DM_ALERT_MODE_PACKET, 110 NET_DM_ALERT_MODE_PACKET,
111 }; 111 };
112 112
113 enum { 113 enum {
114 NET_DM_ATTR_PORT_NETDEV_IFINDEX, 114 NET_DM_ATTR_PORT_NETDEV_IFINDEX, /* u32 */
115 NET_DM_ATTR_PORT_NETDEV_NAME, 115 NET_DM_ATTR_PORT_NETDEV_NAME, /* string */
116 116
117 __NET_DM_ATTR_PORT_MAX, 117 __NET_DM_ATTR_PORT_MAX,
118 NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_P 118 NET_DM_ATTR_PORT_MAX = __NET_DM_ATTR_PORT_MAX - 1
119 }; 119 };
120 120
121 enum { 121 enum {
122 NET_DM_ATTR_STATS_DROPPED, 122 NET_DM_ATTR_STATS_DROPPED, /* u64 */
123 123
124 __NET_DM_ATTR_STATS_MAX, 124 __NET_DM_ATTR_STATS_MAX,
125 NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_ 125 NET_DM_ATTR_STATS_MAX = __NET_DM_ATTR_STATS_MAX - 1
126 }; 126 };
127 127
128 enum net_dm_origin { 128 enum net_dm_origin {
129 NET_DM_ORIGIN_SW, 129 NET_DM_ORIGIN_SW,
130 NET_DM_ORIGIN_HW, 130 NET_DM_ORIGIN_HW,
131 }; 131 };
132 132
133 #endif 133 #endif
134 134
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