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f0706e82 JB |
1 | /* |
2 | * Copyright 2002-2005, Devicescape Software, Inc. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #ifndef STA_INFO_H | |
10 | #define STA_INFO_H | |
11 | ||
12 | #include <linux/list.h> | |
13 | #include <linux/types.h> | |
14 | #include <linux/if_ether.h> | |
af818581 | 15 | #include <linux/workqueue.h> |
2c8dccc7 | 16 | #include "key.h" |
f0706e82 | 17 | |
238814fd JB |
18 | /** |
19 | * enum ieee80211_sta_info_flags - Stations flags | |
20 | * | |
21 | * These flags are used with &struct sta_info's @flags member. | |
22 | * | |
23 | * @WLAN_STA_AUTH: Station is authenticated. | |
24 | * @WLAN_STA_ASSOC: Station is associated. | |
af818581 | 25 | * @WLAN_STA_PS_STA: Station is in power-save mode |
238814fd JB |
26 | * @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic. |
27 | * This bit is always checked so needs to be enabled for all stations | |
28 | * when virtual port control is not in use. | |
29 | * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble | |
30 | * frames. | |
31 | * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP. | |
32 | * @WLAN_STA_WME: Station is a QoS-STA. | |
33 | * @WLAN_STA_WDS: Station is one of our WDS peers. | |
d46e144b | 34 | * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the |
e039fa4a | 35 | * IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next |
d46e144b | 36 | * frame to this station is transmitted. |
5394af4d | 37 | * @WLAN_STA_MFP: Management frame protection is used with this STA. |
618f356b | 38 | * @WLAN_STA_BLOCK_BA: Used to deny ADDBA requests (both TX and RX) |
098a6070 | 39 | * during suspend/resume and station removal. |
af818581 JB |
40 | * @WLAN_STA_PS_DRIVER: driver requires keeping this station in |
41 | * power-save mode logically to flush frames that might still | |
42 | * be in the queues | |
43 | * @WLAN_STA_PSPOLL: Station sent PS-poll while driver was keeping | |
44 | * station in power-save mode, reply when the driver unblocks. | |
238814fd JB |
45 | */ |
46 | enum ieee80211_sta_info_flags { | |
47 | WLAN_STA_AUTH = 1<<0, | |
48 | WLAN_STA_ASSOC = 1<<1, | |
af818581 | 49 | WLAN_STA_PS_STA = 1<<2, |
836341a7 JB |
50 | WLAN_STA_AUTHORIZED = 1<<3, |
51 | WLAN_STA_SHORT_PREAMBLE = 1<<4, | |
52 | WLAN_STA_ASSOC_AP = 1<<5, | |
53 | WLAN_STA_WME = 1<<6, | |
54 | WLAN_STA_WDS = 1<<7, | |
d46e144b | 55 | WLAN_STA_CLEAR_PS_FILT = 1<<9, |
5394af4d | 56 | WLAN_STA_MFP = 1<<10, |
618f356b | 57 | WLAN_STA_BLOCK_BA = 1<<11, |
af818581 JB |
58 | WLAN_STA_PS_DRIVER = 1<<12, |
59 | WLAN_STA_PSPOLL = 1<<13, | |
238814fd | 60 | }; |
f0706e82 | 61 | |
5aae2880 RR |
62 | #define STA_TID_NUM 16 |
63 | #define ADDBA_RESP_INTERVAL HZ | |
a622ab72 | 64 | #define HT_AGG_MAX_RETRIES 0x3 |
5aae2880 | 65 | |
a622ab72 JB |
66 | #define HT_AGG_STATE_DRV_READY 0 |
67 | #define HT_AGG_STATE_RESPONSE_RECEIVED 1 | |
68 | #define HT_AGG_STATE_OPERATIONAL 2 | |
69 | #define HT_AGG_STATE_STOPPING 3 | |
0ab33703 JB |
70 | #define HT_AGG_STATE_WANT_START 4 |
71 | #define HT_AGG_STATE_WANT_STOP 5 | |
80656c20 RR |
72 | |
73 | /** | |
74 | * struct tid_ampdu_tx - TID aggregation information (Tx). | |
75 | * | |
a622ab72 | 76 | * @rcu_head: rcu head for freeing structure |
80656c20 | 77 | * @addba_resp_timer: timer for peer's response to addba request |
cd8ffc80 | 78 | * @pending: pending frames queue -- use sta's spinlock to protect |
cee24a3e | 79 | * @dialog_token: dialog token for aggregation session |
a622ab72 JB |
80 | * @state: session state (see above) |
81 | * @stop_initiator: initiator of a session stop | |
82 | * | |
83 | * This structure is protected by RCU and the per-station | |
84 | * spinlock. Assignments to the array holding it must hold | |
85 | * the spinlock, only the TX path can access it under RCU | |
86 | * lock-free if, and only if, the state has the flag | |
87 | * %HT_AGG_STATE_OPERATIONAL set. Otherwise, the TX path | |
88 | * must also acquire the spinlock and re-check the state, | |
89 | * see comments in the tx code touching it. | |
80656c20 RR |
90 | */ |
91 | struct tid_ampdu_tx { | |
a622ab72 | 92 | struct rcu_head rcu_head; |
80656c20 | 93 | struct timer_list addba_resp_timer; |
cd8ffc80 | 94 | struct sk_buff_head pending; |
a622ab72 | 95 | unsigned long state; |
cee24a3e | 96 | u8 dialog_token; |
a622ab72 | 97 | u8 stop_initiator; |
80656c20 | 98 | }; |
5aae2880 RR |
99 | |
100 | /** | |
101 | * struct tid_ampdu_rx - TID aggregation information (Rx). | |
102 | * | |
5aae2880 | 103 | * @reorder_buf: buffer to reorder incoming aggregated MPDUs |
4d050f1d | 104 | * @reorder_time: jiffies when skb was added |
5aae2880 | 105 | * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value) |
056cdd59 JB |
106 | * @head_seq_num: head sequence number in reordering buffer. |
107 | * @stored_mpdu_num: number of MPDUs in reordering buffer | |
cee24a3e RR |
108 | * @ssn: Starting Sequence Number expected to be aggregated. |
109 | * @buf_size: buffer size for incoming A-MPDUs | |
20ad19d0 | 110 | * @timeout: reset timer value (in TUs). |
cee24a3e | 111 | * @dialog_token: dialog token for aggregation session |
a87f736d JB |
112 | * @rcu_head: RCU head used for freeing this struct |
113 | * | |
114 | * This structure is protected by RCU and the per-station | |
115 | * spinlock. Assignments to the array holding it must hold | |
116 | * the spinlock, only the RX path can access it under RCU | |
117 | * lock-free. The RX path, since it is single-threaded, | |
118 | * can even modify the structure without locking since the | |
119 | * only other modifications to it are done when the struct | |
120 | * can not yet or no longer be found by the RX path. | |
5aae2880 RR |
121 | */ |
122 | struct tid_ampdu_rx { | |
a87f736d | 123 | struct rcu_head rcu_head; |
5aae2880 | 124 | struct sk_buff **reorder_buf; |
4d050f1d | 125 | unsigned long *reorder_time; |
5aae2880 | 126 | struct timer_list session_timer; |
056cdd59 JB |
127 | u16 head_seq_num; |
128 | u16 stored_mpdu_num; | |
cee24a3e RR |
129 | u16 ssn; |
130 | u16 buf_size; | |
131 | u16 timeout; | |
132 | u8 dialog_token; | |
5aae2880 RR |
133 | }; |
134 | ||
fcea6007 JB |
135 | /** |
136 | * struct sta_ampdu_mlme - STA aggregation information. | |
137 | * | |
a87f736d | 138 | * @tid_rx: aggregation info for Rx per TID -- RCU protected |
fcea6007 JB |
139 | * @tid_tx: aggregation info for Tx per TID |
140 | * @addba_req_num: number of times addBA request has been sent. | |
141 | * @dialog_token_allocator: dialog token enumerator for each new session; | |
0ab33703 | 142 | * @work: work struct for starting/stopping aggregation |
7c3b1dd8 JB |
143 | * @tid_rx_timer_expired: bitmap indicating on which TIDs the |
144 | * RX timer expired until the work for it runs | |
fcea6007 JB |
145 | */ |
146 | struct sta_ampdu_mlme { | |
147 | /* rx */ | |
fcea6007 | 148 | struct tid_ampdu_rx *tid_rx[STA_TID_NUM]; |
7c3b1dd8 | 149 | unsigned long tid_rx_timer_expired[BITS_TO_LONGS(STA_TID_NUM)]; |
fcea6007 | 150 | /* tx */ |
0ab33703 | 151 | struct work_struct work; |
fcea6007 JB |
152 | struct tid_ampdu_tx *tid_tx[STA_TID_NUM]; |
153 | u8 addba_req_num[STA_TID_NUM]; | |
154 | u8 dialog_token_allocator; | |
155 | }; | |
156 | ||
157 | ||
b4e08ea1 LCC |
158 | /** |
159 | * enum plink_state - state of a mesh peer link finite state machine | |
160 | * | |
161 | * @PLINK_LISTEN: initial state, considered the implicit state of non existant | |
162 | * mesh peer links | |
163 | * @PLINK_OPN_SNT: mesh plink open frame has been sent to this mesh peer | |
164 | * @PLINK_OPN_RCVD: mesh plink open frame has been received from this mesh peer | |
165 | * @PLINK_CNF_RCVD: mesh plink confirm frame has been received from this mesh | |
166 | * peer | |
167 | * @PLINK_ESTAB: mesh peer link is established | |
168 | * @PLINK_HOLDING: mesh peer link is being closed or cancelled | |
169 | * @PLINK_BLOCKED: all frames transmitted from this mesh plink are discarded | |
170 | */ | |
ee385855 | 171 | enum plink_state { |
b4e08ea1 LCC |
172 | PLINK_LISTEN, |
173 | PLINK_OPN_SNT, | |
174 | PLINK_OPN_RCVD, | |
175 | PLINK_CNF_RCVD, | |
176 | PLINK_ESTAB, | |
177 | PLINK_HOLDING, | |
178 | PLINK_BLOCKED | |
ee385855 | 179 | }; |
ee385855 | 180 | |
693b1bbc JB |
181 | /** |
182 | * struct sta_info - STA information | |
183 | * | |
184 | * This structure collects information about a station that | |
185 | * mac80211 is communicating with. | |
186 | * | |
187 | * @list: global linked list entry | |
188 | * @hnext: hash table linked list pointer | |
189 | * @local: pointer to the global information | |
e25cf4a6 JB |
190 | * @sdata: virtual interface this station belongs to |
191 | * @key: peer key negotiated with this station, if any | |
192 | * @rate_ctrl: rate control algorithm reference | |
193 | * @rate_ctrl_priv: rate control private per-STA pointer | |
194 | * @last_tx_rate: rate used for last transmit, to report to userspace as | |
195 | * "the" transmit rate | |
6ef307bc RD |
196 | * @lock: used for locking all fields that require locking, see comments |
197 | * in the header file. | |
198 | * @flaglock: spinlock for flags accesses | |
841507f5 | 199 | * @drv_unblock_wk: used for driver PS unblocking |
e25cf4a6 | 200 | * @listen_interval: listen interval of this station, when we're acting as AP |
693b1bbc JB |
201 | * @flags: STA flags, see &enum ieee80211_sta_info_flags |
202 | * @ps_tx_buf: buffer of frames to transmit to this station | |
203 | * when it leaves power saving state | |
204 | * @tx_filtered: buffer of frames we already tried to transmit | |
205 | * but were filtered by hardware due to STA having entered | |
206 | * power saving state | |
207 | * @rx_packets: Number of MSDUs received from this STA | |
208 | * @rx_bytes: Number of bytes received from this STA | |
e25cf4a6 JB |
209 | * @wep_weak_iv_count: number of weak WEP IVs received from this station |
210 | * @last_rx: time (in jiffies) when last frame was received from this STA | |
6ef307bc RD |
211 | * @num_duplicates: number of duplicate frames received from this STA |
212 | * @rx_fragments: number of received MPDUs | |
213 | * @rx_dropped: number of dropped MPDUs from this STA | |
214 | * @last_signal: signal of last received frame from this STA | |
6ef307bc | 215 | * @last_seq_ctrl: last received seq/frag number from this STA (per RX queue) |
e25cf4a6 JB |
216 | * @tx_filtered_count: number of frames the hardware filtered for this STA |
217 | * @tx_retry_failed: number of frames that failed retry | |
218 | * @tx_retry_count: total number of retries for frames to this STA | |
6ef307bc RD |
219 | * @fail_avg: moving percentage of failed MSDUs |
220 | * @tx_packets: number of RX/TX MSDUs | |
e25cf4a6 | 221 | * @tx_bytes: number of bytes transmitted to this STA |
6ef307bc | 222 | * @tx_fragments: number of transmitted MPDUs |
e25cf4a6 JB |
223 | * @tid_seq: per-TID sequence numbers for sending to this STA |
224 | * @ampdu_mlme: A-MPDU state machine state | |
6ef307bc | 225 | * @timer_to_tid: identity mapping to ID timers |
6ef307bc RD |
226 | * @llid: Local link ID |
227 | * @plid: Peer link ID | |
228 | * @reason: Cancel reason on PLINK_HOLDING state | |
229 | * @plink_retries: Retries in establishment | |
e25cf4a6 JB |
230 | * @ignore_plink_timer: ignore the peer-link timer (used internally) |
231 | * @plink_state: peer link state | |
232 | * @plink_timeout: timeout of peer link | |
233 | * @plink_timer: peer link watch timer | |
cce4c77b | 234 | * @plink_timer_was_running: used by suspend/resume to restore timers |
6ef307bc | 235 | * @debugfs: debug filesystem info |
17741cdc | 236 | * @sta: station information we share with the driver |
af818581 | 237 | * @dead: set to true when sta is unlinked |
34e89507 | 238 | * @uploaded: set to true when sta is uploaded to the driver |
693b1bbc | 239 | */ |
f0706e82 | 240 | struct sta_info { |
693b1bbc | 241 | /* General information, mostly static */ |
f0706e82 | 242 | struct list_head list; |
693b1bbc | 243 | struct sta_info *hnext; |
f0706e82 | 244 | struct ieee80211_local *local; |
d0709a65 | 245 | struct ieee80211_sub_if_data *sdata; |
f0706e82 | 246 | struct ieee80211_key *key; |
f0706e82 JB |
247 | struct rate_control_ref *rate_ctrl; |
248 | void *rate_ctrl_priv; | |
07346f81 | 249 | spinlock_t lock; |
5a9f7b04 | 250 | spinlock_t flaglock; |
17741cdc | 251 | |
af818581 JB |
252 | struct work_struct drv_unblock_wk; |
253 | ||
693b1bbc | 254 | u16 listen_interval; |
f0706e82 | 255 | |
af818581 JB |
256 | bool dead; |
257 | ||
34e89507 | 258 | bool uploaded; |
693b1bbc | 259 | |
5a9f7b04 JB |
260 | /* |
261 | * frequently updated, locked with own spinlock (flaglock), | |
262 | * use the accessors defined below | |
263 | */ | |
693b1bbc JB |
264 | u32 flags; |
265 | ||
266 | /* | |
267 | * STA powersave frame queues, no more than the internal | |
268 | * locking required. | |
269 | */ | |
270 | struct sk_buff_head ps_tx_buf; | |
271 | struct sk_buff_head tx_filtered; | |
272 | ||
273 | /* Updated from RX path only, no locking requirements */ | |
274 | unsigned long rx_packets, rx_bytes; | |
275 | unsigned long wep_weak_iv_count; | |
276 | unsigned long last_rx; | |
6ef307bc RD |
277 | unsigned long num_duplicates; |
278 | unsigned long rx_fragments; | |
279 | unsigned long rx_dropped; | |
280 | int last_signal; | |
693b1bbc | 281 | __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES]; |
693b1bbc JB |
282 | |
283 | /* Updated from TX status path only, no locking requirements */ | |
284 | unsigned long tx_filtered_count; | |
285 | unsigned long tx_retry_failed, tx_retry_count; | |
693b1bbc JB |
286 | /* moving percentage of failed MSDUs */ |
287 | unsigned int fail_avg; | |
288 | ||
289 | /* Updated from TX path only, no locking requirements */ | |
6ef307bc | 290 | unsigned long tx_packets; |
693b1bbc | 291 | unsigned long tx_bytes; |
6ef307bc | 292 | unsigned long tx_fragments; |
e6a9854b | 293 | struct ieee80211_tx_rate last_tx_rate; |
f591fa5d | 294 | u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; |
f0706e82 | 295 | |
d0709a65 | 296 | /* |
07346f81 | 297 | * Aggregation information, locked with lock. |
d0709a65 | 298 | */ |
5aae2880 | 299 | struct sta_ampdu_mlme ampdu_mlme; |
6ef307bc | 300 | u8 timer_to_tid[STA_TID_NUM]; |
693b1bbc | 301 | |
ee385855 | 302 | #ifdef CONFIG_MAC80211_MESH |
693b1bbc JB |
303 | /* |
304 | * Mesh peer link attributes | |
305 | * TODO: move to a sub-structure that is referenced with pointer? | |
306 | */ | |
6ef307bc RD |
307 | __le16 llid; |
308 | __le16 plid; | |
309 | __le16 reason; | |
310 | u8 plink_retries; | |
7495883b | 311 | bool ignore_plink_timer; |
5bb644a0 | 312 | bool plink_timer_was_running; |
ee385855 LCC |
313 | enum plink_state plink_state; |
314 | u32 plink_timeout; | |
315 | struct timer_list plink_timer; | |
ee385855 | 316 | #endif |
10816d40 | 317 | |
e9f207f0 JB |
318 | #ifdef CONFIG_MAC80211_DEBUGFS |
319 | struct sta_info_debugfsdentries { | |
320 | struct dentry *dir; | |
63044e9f | 321 | bool add_has_run; |
e9f207f0 JB |
322 | } debugfs; |
323 | #endif | |
17741cdc JB |
324 | |
325 | /* keep last! */ | |
326 | struct ieee80211_sta sta; | |
f0706e82 JB |
327 | }; |
328 | ||
d6d1a5a7 JB |
329 | static inline enum plink_state sta_plink_state(struct sta_info *sta) |
330 | { | |
331 | #ifdef CONFIG_MAC80211_MESH | |
332 | return sta->plink_state; | |
333 | #endif | |
b4e08ea1 | 334 | return PLINK_LISTEN; |
d6d1a5a7 JB |
335 | } |
336 | ||
07346f81 JB |
337 | static inline void set_sta_flags(struct sta_info *sta, const u32 flags) |
338 | { | |
5a9f7b04 JB |
339 | unsigned long irqfl; |
340 | ||
341 | spin_lock_irqsave(&sta->flaglock, irqfl); | |
07346f81 | 342 | sta->flags |= flags; |
5a9f7b04 | 343 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
07346f81 JB |
344 | } |
345 | ||
346 | static inline void clear_sta_flags(struct sta_info *sta, const u32 flags) | |
347 | { | |
5a9f7b04 JB |
348 | unsigned long irqfl; |
349 | ||
350 | spin_lock_irqsave(&sta->flaglock, irqfl); | |
07346f81 | 351 | sta->flags &= ~flags; |
5a9f7b04 | 352 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
07346f81 JB |
353 | } |
354 | ||
07346f81 JB |
355 | static inline u32 test_sta_flags(struct sta_info *sta, const u32 flags) |
356 | { | |
357 | u32 ret; | |
5a9f7b04 | 358 | unsigned long irqfl; |
07346f81 | 359 | |
5a9f7b04 | 360 | spin_lock_irqsave(&sta->flaglock, irqfl); |
07346f81 | 361 | ret = sta->flags & flags; |
5a9f7b04 | 362 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
07346f81 JB |
363 | |
364 | return ret; | |
365 | } | |
366 | ||
367 | static inline u32 test_and_clear_sta_flags(struct sta_info *sta, | |
368 | const u32 flags) | |
369 | { | |
370 | u32 ret; | |
5a9f7b04 | 371 | unsigned long irqfl; |
07346f81 | 372 | |
5a9f7b04 | 373 | spin_lock_irqsave(&sta->flaglock, irqfl); |
07346f81 JB |
374 | ret = sta->flags & flags; |
375 | sta->flags &= ~flags; | |
5a9f7b04 | 376 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
07346f81 JB |
377 | |
378 | return ret; | |
379 | } | |
380 | ||
381 | static inline u32 get_sta_flags(struct sta_info *sta) | |
382 | { | |
383 | u32 ret; | |
5a9f7b04 | 384 | unsigned long irqfl; |
07346f81 | 385 | |
5a9f7b04 | 386 | spin_lock_irqsave(&sta->flaglock, irqfl); |
07346f81 | 387 | ret = sta->flags; |
5a9f7b04 | 388 | spin_unlock_irqrestore(&sta->flaglock, irqfl); |
07346f81 JB |
389 | |
390 | return ret; | |
391 | } | |
392 | ||
f0706e82 | 393 | |
f0706e82 JB |
394 | |
395 | #define STA_HASH_SIZE 256 | |
396 | #define STA_HASH(sta) (sta[5]) | |
397 | ||
398 | ||
399 | /* Maximum number of frames to buffer per power saving station */ | |
400 | #define STA_MAX_TX_BUFFER 128 | |
401 | ||
402 | /* Minimum buffered frame expiry time. If STA uses listen interval that is | |
403 | * smaller than this value, the minimum value here is used instead. */ | |
404 | #define STA_TX_BUFFER_EXPIRE (10 * HZ) | |
405 | ||
406 | /* How often station data is cleaned up (e.g., expiration of buffered frames) | |
407 | */ | |
408 | #define STA_INFO_CLEANUP_INTERVAL (10 * HZ) | |
409 | ||
d0709a65 | 410 | /* |
abe60632 | 411 | * Get a STA info, must be under RCU read lock. |
d0709a65 | 412 | */ |
abe60632 JB |
413 | struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata, |
414 | const u8 *addr); | |
415 | ||
0e5ded5a FF |
416 | struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata, |
417 | const u8 *addr); | |
418 | ||
abe60632 JB |
419 | static inline |
420 | void for_each_sta_info_type_check(struct ieee80211_local *local, | |
421 | const u8 *addr, | |
422 | struct sta_info *sta, | |
423 | struct sta_info *nxt) | |
424 | { | |
425 | } | |
426 | ||
427 | #define for_each_sta_info(local, _addr, sta, nxt) \ | |
428 | for ( /* initialise loop */ \ | |
429 | sta = rcu_dereference(local->sta_hash[STA_HASH(_addr)]),\ | |
430 | nxt = sta ? rcu_dereference(sta->hnext) : NULL; \ | |
431 | /* typecheck */ \ | |
432 | for_each_sta_info_type_check(local, (_addr), sta, nxt), \ | |
433 | /* continue condition */ \ | |
434 | sta; \ | |
435 | /* advance loop */ \ | |
436 | sta = nxt, \ | |
437 | nxt = sta ? rcu_dereference(sta->hnext) : NULL \ | |
438 | ) \ | |
439 | /* compare address and run code only if it matches */ \ | |
440 | if (memcmp(sta->sta.addr, (_addr), ETH_ALEN) == 0) | |
441 | ||
d0709a65 JB |
442 | /* |
443 | * Get STA info by index, BROKEN! | |
444 | */ | |
3b53fde8 JB |
445 | struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata, |
446 | int idx); | |
d0709a65 | 447 | /* |
73651ee6 JB |
448 | * Create a new STA info, caller owns returned structure |
449 | * until sta_info_insert(). | |
d0709a65 | 450 | */ |
73651ee6 JB |
451 | struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, |
452 | u8 *addr, gfp_t gfp); | |
453 | /* | |
454 | * Insert STA info into hash table/list, returns zero or a | |
455 | * -EEXIST if (if the same MAC address is already present). | |
456 | * | |
34e89507 JB |
457 | * Calling the non-rcu version makes the caller relinquish, |
458 | * the _rcu version calls read_lock_rcu() and must be called | |
459 | * without it held. | |
73651ee6 JB |
460 | */ |
461 | int sta_info_insert(struct sta_info *sta); | |
34e89507 JB |
462 | int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU); |
463 | int sta_info_insert_atomic(struct sta_info *sta); | |
464 | ||
465 | int sta_info_destroy_addr(struct ieee80211_sub_if_data *sdata, | |
466 | const u8 *addr); | |
467 | int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata, | |
468 | const u8 *addr); | |
f0706e82 | 469 | |
004c872e JB |
470 | void sta_info_set_tim_bit(struct sta_info *sta); |
471 | void sta_info_clear_tim_bit(struct sta_info *sta); | |
472 | ||
d0709a65 JB |
473 | void sta_info_init(struct ieee80211_local *local); |
474 | int sta_info_start(struct ieee80211_local *local); | |
475 | void sta_info_stop(struct ieee80211_local *local); | |
44213b5e | 476 | int sta_info_flush(struct ieee80211_local *local, |
af8cdcd8 | 477 | struct ieee80211_sub_if_data *sdata); |
24723d1b JB |
478 | void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, |
479 | unsigned long exp_time); | |
d0709a65 | 480 | |
af818581 JB |
481 | void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta); |
482 | void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta); | |
483 | ||
f0706e82 | 484 | #endif /* STA_INFO_H */ |