1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) B.A.T.M.A.N. contributors:
4 * Marek Lindner, Simon Wunderlich
7 #ifndef _NET_BATMAN_ADV_LOG_H_
8 #define _NET_BATMAN_ADV_LOG_H_
12 #include <linux/atomic.h>
13 #include <linux/bitops.h>
14 #include <linux/compiler.h>
15 #include <linux/printk.h>
17 #ifdef CONFIG_BATMAN_ADV_DEBUG
19 int batadv_debug_log_setup(struct batadv_priv *bat_priv);
20 void batadv_debug_log_cleanup(struct batadv_priv *bat_priv);
24 static inline int batadv_debug_log_setup(struct batadv_priv *bat_priv)
29 static inline void batadv_debug_log_cleanup(struct batadv_priv *bat_priv)
36 * enum batadv_dbg_level - available log levels
38 enum batadv_dbg_level {
39 /** @BATADV_DBG_BATMAN: OGM and TQ computations related messages */
40 BATADV_DBG_BATMAN = BIT(0),
42 /** @BATADV_DBG_ROUTES: route added / changed / deleted */
43 BATADV_DBG_ROUTES = BIT(1),
45 /** @BATADV_DBG_TT: translation table messages */
46 BATADV_DBG_TT = BIT(2),
48 /** @BATADV_DBG_BLA: bridge loop avoidance messages */
49 BATADV_DBG_BLA = BIT(3),
51 /** @BATADV_DBG_DAT: ARP snooping and DAT related messages */
52 BATADV_DBG_DAT = BIT(4),
54 /** @BATADV_DBG_NC: network coding related messages */
55 BATADV_DBG_NC = BIT(5),
57 /** @BATADV_DBG_MCAST: multicast related messages */
58 BATADV_DBG_MCAST = BIT(6),
60 /** @BATADV_DBG_TP_METER: throughput meter messages */
61 BATADV_DBG_TP_METER = BIT(7),
63 /** @BATADV_DBG_ALL: the union of all the above log levels */
67 #ifdef CONFIG_BATMAN_ADV_DEBUG
68 int batadv_debug_log(struct batadv_priv *bat_priv, const char *fmt, ...)
72 * _batadv_dbg() - Store debug output with(out) rate limiting
73 * @type: type of debug message
74 * @bat_priv: the bat priv with all the soft interface information
75 * @ratelimited: whether output should be rate limited
77 * @arg: variable arguments
79 #define _batadv_dbg(type, bat_priv, ratelimited, fmt, arg...) \
81 struct batadv_priv *__batpriv = (bat_priv); \
82 if (atomic_read(&__batpriv->log_level) & (type) && \
83 (!(ratelimited) || net_ratelimit())) \
84 batadv_debug_log(__batpriv, fmt, ## arg); \
87 #else /* !CONFIG_BATMAN_ADV_DEBUG */
89 static inline void _batadv_dbg(int type __always_unused,
90 struct batadv_priv *bat_priv __always_unused,
91 int ratelimited __always_unused,
92 const char *fmt __always_unused, ...)
98 * batadv_dbg() - Store debug output without rate limiting
99 * @type: type of debug message
100 * @bat_priv: the bat priv with all the soft interface information
101 * @arg: format string and variable arguments
103 #define batadv_dbg(type, bat_priv, arg...) \
104 _batadv_dbg(type, bat_priv, 0, ## arg)
107 * batadv_dbg_ratelimited() - Store debug output with rate limiting
108 * @type: type of debug message
109 * @bat_priv: the bat priv with all the soft interface information
110 * @arg: format string and variable arguments
112 #define batadv_dbg_ratelimited(type, bat_priv, arg...) \
113 _batadv_dbg(type, bat_priv, 1, ## arg)
116 * batadv_info() - Store message in debug buffer and print it to kmsg buffer
117 * @net_dev: the soft interface net device
118 * @fmt: format string
119 * @arg: variable arguments
121 #define batadv_info(net_dev, fmt, arg...) \
123 struct net_device *_netdev = (net_dev); \
124 struct batadv_priv *_batpriv = netdev_priv(_netdev); \
125 batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
126 pr_info("%s: " fmt, _netdev->name, ## arg); \
130 * batadv_err() - Store error in debug buffer and print it to kmsg buffer
131 * @net_dev: the soft interface net device
132 * @fmt: format string
133 * @arg: variable arguments
135 #define batadv_err(net_dev, fmt, arg...) \
137 struct net_device *_netdev = (net_dev); \
138 struct batadv_priv *_batpriv = netdev_priv(_netdev); \
139 batadv_dbg(BATADV_DBG_ALL, _batpriv, fmt, ## arg); \
140 pr_err("%s: " fmt, _netdev->name, ## arg); \
143 #endif /* _NET_BATMAN_ADV_LOG_H_ */