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 /** 26 /**
27 * @SKB_DROP_REASON_SUBSYS_OPENVSWITCH 27 * @SKB_DROP_REASON_SUBSYS_OPENVSWITCH: openvswitch drop reasons,
28 * see net/openvswitch/drop.h 28 * see net/openvswitch/drop.h
29 */ 29 */
30 SKB_DROP_REASON_SUBSYS_OPENVSWITCH, 30 SKB_DROP_REASON_SUBSYS_OPENVSWITCH,
31 31
32 /** @SKB_DROP_REASON_SUBSYS_NUM: numbe 32 /** @SKB_DROP_REASON_SUBSYS_NUM: number of subsystems defined */
33 SKB_DROP_REASON_SUBSYS_NUM 33 SKB_DROP_REASON_SUBSYS_NUM
34 }; 34 };
35 35
36 struct drop_reason_list { 36 struct drop_reason_list {
37 const char * const *reasons; 37 const char * const *reasons;
38 size_t n_reasons; 38 size_t n_reasons;
39 }; 39 };
40 40
41 /* Note: due to dynamic registrations, access 41 /* Note: due to dynamic registrations, access must be under RCU */
42 extern const struct drop_reason_list __rcu * 42 extern const struct drop_reason_list __rcu *
43 drop_reasons_by_subsys[SKB_DROP_REASON_SUBSYS_ 43 drop_reasons_by_subsys[SKB_DROP_REASON_SUBSYS_NUM];
44 44
45 void drop_reasons_register_subsys(enum skb_dro 45 void drop_reasons_register_subsys(enum skb_drop_reason_subsys subsys,
46 const struct 46 const struct drop_reason_list *list);
47 void drop_reasons_unregister_subsys(enum skb_d 47 void drop_reasons_unregister_subsys(enum skb_drop_reason_subsys subsys);
48 48
49 #endif 49 #endif
50 50
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