1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Copyright 2002-2005, Instant802 Networks, Inc. |
4 | * Copyright 2005, Devicescape Software, Inc. |
5 | * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz> |
6 | * Copyright (C) 2022 Intel Corporation |
7 | */ |
8 | |
9 | #ifndef IEEE80211_RATE_H |
10 | #define IEEE80211_RATE_H |
11 | |
12 | #include <linux/netdevice.h> |
13 | #include <linux/skbuff.h> |
14 | #include <linux/types.h> |
15 | #include <net/mac80211.h> |
16 | #include "ieee80211_i.h" |
17 | #include "sta_info.h" |
18 | #include "driver-ops.h" |
19 | |
20 | struct rate_control_ref { |
21 | const struct rate_control_ops *ops; |
22 | void *priv; |
23 | }; |
24 | |
25 | void rate_control_get_rate(struct ieee80211_sub_if_data *sdata, |
26 | struct sta_info *sta, |
27 | struct ieee80211_tx_rate_control *txrc); |
28 | |
29 | void rate_control_tx_status(struct ieee80211_local *local, |
30 | struct ieee80211_tx_status *st); |
31 | |
32 | void rate_control_rate_init(struct sta_info *sta); |
33 | void rate_control_rate_update(struct ieee80211_local *local, |
34 | struct ieee80211_supported_band *sband, |
35 | struct sta_info *sta, |
36 | unsigned int link_id, |
37 | u32 changed); |
38 | |
39 | static inline void *rate_control_alloc_sta(struct rate_control_ref *ref, |
40 | struct sta_info *sta, gfp_t gfp) |
41 | { |
42 | spin_lock_init(&sta->rate_ctrl_lock); |
43 | return ref->ops->alloc_sta(ref->priv, &sta->sta, gfp); |
44 | } |
45 | |
46 | static inline void rate_control_free_sta(struct sta_info *sta) |
47 | { |
48 | struct rate_control_ref *ref = sta->rate_ctrl; |
49 | struct ieee80211_sta *ista = &sta->sta; |
50 | void *priv_sta = sta->rate_ctrl_priv; |
51 | |
52 | ref->ops->free_sta(ref->priv, ista, priv_sta); |
53 | } |
54 | |
55 | static inline void rate_control_add_sta_debugfs(struct sta_info *sta) |
56 | { |
57 | #ifdef CONFIG_MAC80211_DEBUGFS |
58 | struct rate_control_ref *ref = sta->rate_ctrl; |
59 | if (ref && sta->debugfs_dir && ref->ops->add_sta_debugfs) |
60 | ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv, |
61 | sta->debugfs_dir); |
62 | #endif |
63 | } |
64 | |
65 | extern const struct file_operations rcname_ops; |
66 | |
67 | static inline void rate_control_add_debugfs(struct ieee80211_local *local) |
68 | { |
69 | #ifdef CONFIG_MAC80211_DEBUGFS |
70 | struct dentry *debugfsdir; |
71 | |
72 | if (!local->rate_ctrl) |
73 | return; |
74 | |
75 | if (!local->rate_ctrl->ops->add_debugfs) |
76 | return; |
77 | |
78 | debugfsdir = debugfs_create_dir(name: "rc" , parent: local->hw.wiphy->debugfsdir); |
79 | local->debugfs.rcdir = debugfsdir; |
80 | debugfs_create_file(name: "name" , mode: 0400, parent: debugfsdir, |
81 | data: local->rate_ctrl, fops: &rcname_ops); |
82 | |
83 | local->rate_ctrl->ops->add_debugfs(&local->hw, local->rate_ctrl->priv, |
84 | debugfsdir); |
85 | #endif |
86 | } |
87 | |
88 | void ieee80211_check_rate_mask(struct ieee80211_link_data *link); |
89 | |
90 | /* Get a reference to the rate control algorithm. If `name' is NULL, get the |
91 | * first available algorithm. */ |
92 | int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local, |
93 | const char *name); |
94 | void rate_control_deinitialize(struct ieee80211_local *local); |
95 | |
96 | |
97 | /* Rate control algorithms */ |
98 | #ifdef CONFIG_MAC80211_RC_MINSTREL |
99 | int rc80211_minstrel_init(void); |
100 | void rc80211_minstrel_exit(void); |
101 | #else |
102 | static inline int rc80211_minstrel_init(void) |
103 | { |
104 | return 0; |
105 | } |
106 | static inline void rc80211_minstrel_exit(void) |
107 | { |
108 | } |
109 | #endif |
110 | |
111 | |
112 | #endif /* IEEE80211_RATE_H */ |
113 | |