1 /* SPDX-License-Identifier: GPL-2.0-or-later * 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 2
3 #ifndef _LINUX_DROPREASON_H 3 #ifndef _LINUX_DROPREASON_H
4 #define _LINUX_DROPREASON_H 4 #define _LINUX_DROPREASON_H
5 #include <net/dropreason-core.h> 5 #include <net/dropreason-core.h>
6 6
7 /** 7 /**
8 * enum skb_drop_reason_subsys - subsystem tag 8 * enum skb_drop_reason_subsys - subsystem tag for (extended) drop reasons
9 */ 9 */
10 enum skb_drop_reason_subsys { 10 enum skb_drop_reason_subsys {
11 /** @SKB_DROP_REASON_SUBSYS_CORE: core 11 /** @SKB_DROP_REASON_SUBSYS_CORE: core drop reasons defined above */
12 SKB_DROP_REASON_SUBSYS_CORE, 12 SKB_DROP_REASON_SUBSYS_CORE,
13 13
14 /** 14 /**
15 * @SKB_DROP_REASON_SUBSYS_MAC80211_UN 15 * @SKB_DROP_REASON_SUBSYS_MAC80211_UNUSABLE: mac80211 drop reasons
16 * for unusable frames, see net/mac802 16 * for unusable frames, see net/mac80211/drop.h
17 */ 17 */
18 SKB_DROP_REASON_SUBSYS_MAC80211_UNUSAB 18 SKB_DROP_REASON_SUBSYS_MAC80211_UNUSABLE,
19 19
20 /** 20 /**
21 * @SKB_DROP_REASON_SUBSYS_MAC80211_MO 21 * @SKB_DROP_REASON_SUBSYS_MAC80211_MONITOR: mac80211 drop reasons
22 * for frames still going to monitor, 22 * for frames still going to monitor, see net/mac80211/drop.h
23 */ 23 */
24 SKB_DROP_REASON_SUBSYS_MAC80211_MONITO 24 SKB_DROP_REASON_SUBSYS_MAC80211_MONITOR,
25 25
26 /** <<
27 * @SKB_DROP_REASON_SUBSYS_OPENVSWITCH <<
28 * see net/openvswitch/drop.h <<
29 */ <<
30 SKB_DROP_REASON_SUBSYS_OPENVSWITCH, <<
31 <<
32 /** @SKB_DROP_REASON_SUBSYS_NUM: numbe 26 /** @SKB_DROP_REASON_SUBSYS_NUM: number of subsystems defined */
33 SKB_DROP_REASON_SUBSYS_NUM 27 SKB_DROP_REASON_SUBSYS_NUM
34 }; 28 };
35 29
36 struct drop_reason_list { 30 struct drop_reason_list {
37 const char * const *reasons; 31 const char * const *reasons;
38 size_t n_reasons; 32 size_t n_reasons;
39 }; 33 };
40 34
41 /* Note: due to dynamic registrations, access 35 /* Note: due to dynamic registrations, access must be under RCU */
42 extern const struct drop_reason_list __rcu * 36 extern const struct drop_reason_list __rcu *
43 drop_reasons_by_subsys[SKB_DROP_REASON_SUBSYS_ 37 drop_reasons_by_subsys[SKB_DROP_REASON_SUBSYS_NUM];
44 38
45 void drop_reasons_register_subsys(enum skb_dro 39 void drop_reasons_register_subsys(enum skb_drop_reason_subsys subsys,
46 const struct 40 const struct drop_reason_list *list);
47 void drop_reasons_unregister_subsys(enum skb_d 41 void drop_reasons_unregister_subsys(enum skb_drop_reason_subsys subsys);
48 42
49 #endif 43 #endif
50 44
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