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d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
f0706e82 JB |
2 | /* |
3 | * Copyright 2002-2005, Devicescape Software, Inc. | |
d98ad83e | 4 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
da6a4352 | 5 | * Copyright(c) 2015-2017 Intel Deutschland GmbH |
23a5f0af | 6 | * Copyright(c) 2020-2022 Intel Corporation |
f0706e82 JB |
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> |
541a45a1 | 16 | #include <linux/average.h> |
dcba665b | 17 | #include <linux/bitfield.h> |
888d04df | 18 | #include <linux/etherdevice.h> |
7bedd0cf | 19 | #include <linux/rhashtable.h> |
0f9c5a61 | 20 | #include <linux/u64_stats_sync.h> |
2c8dccc7 | 21 | #include "key.h" |
f0706e82 | 22 | |
238814fd JB |
23 | /** |
24 | * enum ieee80211_sta_info_flags - Stations flags | |
25 | * | |
c2c98fde JB |
26 | * These flags are used with &struct sta_info's @flags member, but |
27 | * only indirectly with set_sta_flag() and friends. | |
238814fd JB |
28 | * |
29 | * @WLAN_STA_AUTH: Station is authenticated. | |
30 | * @WLAN_STA_ASSOC: Station is associated. | |
af818581 | 31 | * @WLAN_STA_PS_STA: Station is in power-save mode |
238814fd JB |
32 | * @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic. |
33 | * This bit is always checked so needs to be enabled for all stations | |
34 | * when virtual port control is not in use. | |
35 | * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble | |
36 | * frames. | |
238814fd | 37 | * @WLAN_STA_WDS: Station is one of our WDS peers. |
d46e144b | 38 | * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the |
e039fa4a | 39 | * IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next |
d46e144b | 40 | * frame to this station is transmitted. |
5394af4d | 41 | * @WLAN_STA_MFP: Management frame protection is used with this STA. |
618f356b | 42 | * @WLAN_STA_BLOCK_BA: Used to deny ADDBA requests (both TX and RX) |
098a6070 | 43 | * during suspend/resume and station removal. |
af818581 JB |
44 | * @WLAN_STA_PS_DRIVER: driver requires keeping this station in |
45 | * power-save mode logically to flush frames that might still | |
46 | * be in the queues | |
47 | * @WLAN_STA_PSPOLL: Station sent PS-poll while driver was keeping | |
48 | * station in power-save mode, reply when the driver unblocks. | |
941c93cd AN |
49 | * @WLAN_STA_TDLS_PEER: Station is a TDLS peer. |
50 | * @WLAN_STA_TDLS_PEER_AUTH: This TDLS peer is authorized to send direct | |
51 | * packets. This means the link is enabled. | |
626911cc AN |
52 | * @WLAN_STA_TDLS_INITIATOR: We are the initiator of the TDLS link with this |
53 | * station. | |
9041c1fa | 54 | * @WLAN_STA_TDLS_CHAN_SWITCH: This TDLS peer supports TDLS channel-switching |
a7a6bdd0 AN |
55 | * @WLAN_STA_TDLS_OFF_CHANNEL: The local STA is currently off-channel with this |
56 | * TDLS peer | |
b98fb44f AN |
57 | * @WLAN_STA_TDLS_WIDER_BW: This TDLS peer supports working on a wider bw on |
58 | * the BSS base channel. | |
47086fc5 JB |
59 | * @WLAN_STA_UAPSD: Station requested unscheduled SP while driver was |
60 | * keeping station in power-save mode, reply when the driver | |
61 | * unblocks the station. | |
62 | * @WLAN_STA_SP: Station is in a service period, so don't try to | |
deeaee19 | 63 | * reply to other uAPSD trigger frames or PS-Poll. |
e7f4a940 | 64 | * @WLAN_STA_4ADDR_EVENT: 4-addr event was already sent for this frame. |
83d5cc01 | 65 | * @WLAN_STA_INSERTED: This station is inserted into the hash table. |
e1936e94 | 66 | * @WLAN_STA_RATE_CONTROL: rate control was initialized for this station. |
dbf498fb | 67 | * @WLAN_STA_TOFFSET_KNOWN: toffset calculated for this station is valid. |
3f52b7e3 MP |
68 | * @WLAN_STA_MPSP_OWNER: local STA is owner of a mesh Peer Service Period. |
69 | * @WLAN_STA_MPSP_RECIPIENT: local STA is recipient of a MPSP. | |
5ac2e350 JB |
70 | * @WLAN_STA_PS_DELIVER: station woke up, but we're still blocking TX |
71 | * until pending frames are delivered | |
b6b5c42e JB |
72 | * @WLAN_STA_USES_ENCRYPTION: This station was configured for encryption, |
73 | * so drop all packets without a key later. | |
80a915ec | 74 | * @WLAN_STA_DECAP_OFFLOAD: This station uses rx decap offload |
c84387d2 JB |
75 | * |
76 | * @NUM_WLAN_STA_FLAGS: number of defined flags | |
238814fd JB |
77 | */ |
78 | enum ieee80211_sta_info_flags { | |
c2c98fde JB |
79 | WLAN_STA_AUTH, |
80 | WLAN_STA_ASSOC, | |
81 | WLAN_STA_PS_STA, | |
82 | WLAN_STA_AUTHORIZED, | |
83 | WLAN_STA_SHORT_PREAMBLE, | |
c2c98fde JB |
84 | WLAN_STA_WDS, |
85 | WLAN_STA_CLEAR_PS_FILT, | |
86 | WLAN_STA_MFP, | |
87 | WLAN_STA_BLOCK_BA, | |
88 | WLAN_STA_PS_DRIVER, | |
89 | WLAN_STA_PSPOLL, | |
90 | WLAN_STA_TDLS_PEER, | |
91 | WLAN_STA_TDLS_PEER_AUTH, | |
626911cc | 92 | WLAN_STA_TDLS_INITIATOR, |
9041c1fa | 93 | WLAN_STA_TDLS_CHAN_SWITCH, |
a7a6bdd0 | 94 | WLAN_STA_TDLS_OFF_CHANNEL, |
b98fb44f | 95 | WLAN_STA_TDLS_WIDER_BW, |
c2c98fde JB |
96 | WLAN_STA_UAPSD, |
97 | WLAN_STA_SP, | |
e7f4a940 | 98 | WLAN_STA_4ADDR_EVENT, |
83d5cc01 | 99 | WLAN_STA_INSERTED, |
e1936e94 | 100 | WLAN_STA_RATE_CONTROL, |
dbf498fb | 101 | WLAN_STA_TOFFSET_KNOWN, |
3f52b7e3 MP |
102 | WLAN_STA_MPSP_OWNER, |
103 | WLAN_STA_MPSP_RECIPIENT, | |
5ac2e350 | 104 | WLAN_STA_PS_DELIVER, |
a0761a30 | 105 | WLAN_STA_USES_ENCRYPTION, |
80a915ec | 106 | WLAN_STA_DECAP_OFFLOAD, |
c84387d2 JB |
107 | |
108 | NUM_WLAN_STA_FLAGS, | |
238814fd | 109 | }; |
d9a7ddb0 | 110 | |
5aae2880 | 111 | #define ADDBA_RESP_INTERVAL HZ |
84381b4e NM |
112 | #define HT_AGG_MAX_RETRIES 15 |
113 | #define HT_AGG_BURST_RETRIES 3 | |
114 | #define HT_AGG_RETRIES_PERIOD (15 * HZ) | |
5aae2880 | 115 | |
a622ab72 JB |
116 | #define HT_AGG_STATE_DRV_READY 0 |
117 | #define HT_AGG_STATE_RESPONSE_RECEIVED 1 | |
118 | #define HT_AGG_STATE_OPERATIONAL 2 | |
119 | #define HT_AGG_STATE_STOPPING 3 | |
0ab33703 JB |
120 | #define HT_AGG_STATE_WANT_START 4 |
121 | #define HT_AGG_STATE_WANT_STOP 5 | |
7a7c0a64 JB |
122 | #define HT_AGG_STATE_START_CB 6 |
123 | #define HT_AGG_STATE_STOP_CB 7 | |
0c197f16 | 124 | #define HT_AGG_STATE_SENT_ADDBA 8 |
80656c20 | 125 | |
cc60dbbf | 126 | DECLARE_EWMA(avg_signal, 10, 8) |
c82c4a80 JB |
127 | enum ieee80211_agg_stop_reason { |
128 | AGG_STOP_DECLINED, | |
129 | AGG_STOP_LOCAL_REQUEST, | |
130 | AGG_STOP_PEER_REQUEST, | |
131 | AGG_STOP_DESTROY_STA, | |
132 | }; | |
133 | ||
b4809e94 THJ |
134 | /* Debugfs flags to enable/disable use of RX/TX airtime in scheduler */ |
135 | #define AIRTIME_USE_TX BIT(0) | |
136 | #define AIRTIME_USE_RX BIT(1) | |
137 | ||
138 | struct airtime_info { | |
139 | u64 rx_airtime; | |
140 | u64 tx_airtime; | |
8ccc0702 | 141 | u32 last_active; |
445452d4 | 142 | s32 deficit; |
3ace10f5 KY |
143 | atomic_t aql_tx_pending; /* Estimated airtime for frames pending */ |
144 | u32 aql_limit_low; | |
145 | u32 aql_limit_high; | |
b4809e94 THJ |
146 | }; |
147 | ||
3ace10f5 KY |
148 | void ieee80211_sta_update_pending_airtime(struct ieee80211_local *local, |
149 | struct sta_info *sta, u8 ac, | |
150 | u16 tx_airtime, bool tx_completed); | |
151 | ||
7cca2acd KC |
152 | struct sta_info; |
153 | ||
80656c20 RR |
154 | /** |
155 | * struct tid_ampdu_tx - TID aggregation information (Tx). | |
156 | * | |
a622ab72 | 157 | * @rcu_head: rcu head for freeing structure |
285fa695 | 158 | * @session_timer: check if we keep Tx-ing on the TID (by timeout value) |
80656c20 | 159 | * @addba_resp_timer: timer for peer's response to addba request |
cd8ffc80 | 160 | * @pending: pending frames queue -- use sta's spinlock to protect |
7cca2acd | 161 | * @sta: station we are attached to |
cee24a3e | 162 | * @dialog_token: dialog token for aggregation session |
bd2ce6e4 | 163 | * @timeout: session timeout value to be filled in ADDBA requests |
7cca2acd | 164 | * @tid: TID number |
a622ab72 | 165 | * @state: session state (see above) |
12d3952f | 166 | * @last_tx: jiffies of last tx activity |
a622ab72 | 167 | * @stop_initiator: initiator of a session stop |
53f73c09 | 168 | * @tx_stop: TX DelBA frame when stopping |
0b01f030 | 169 | * @buf_size: reorder buffer size at receiver |
f0425bed FF |
170 | * @failed_bar_ssn: ssn of the last failed BAR tx attempt |
171 | * @bar_pending: BAR needs to be re-sent | |
e3abc8ff | 172 | * @amsdu: support A-MSDU withing A-MDPU |
af9d3a29 | 173 | * @ssn: starting sequence number of the session |
a622ab72 | 174 | * |
dd318575 JB |
175 | * This structure's lifetime is managed by RCU, assignments to |
176 | * the array holding it must hold the aggregation mutex. | |
177 | * | |
178 | * The TX path can access it under RCU lock-free if, and | |
179 | * only if, the state has the flag %HT_AGG_STATE_OPERATIONAL | |
180 | * set. Otherwise, the TX path must also acquire the spinlock | |
181 | * and re-check the state, see comments in the tx code | |
182 | * touching it. | |
80656c20 RR |
183 | */ |
184 | struct tid_ampdu_tx { | |
a622ab72 | 185 | struct rcu_head rcu_head; |
285fa695 | 186 | struct timer_list session_timer; |
80656c20 | 187 | struct timer_list addba_resp_timer; |
cd8ffc80 | 188 | struct sk_buff_head pending; |
7cca2acd | 189 | struct sta_info *sta; |
a622ab72 | 190 | unsigned long state; |
12d3952f | 191 | unsigned long last_tx; |
bd2ce6e4 | 192 | u16 timeout; |
cee24a3e | 193 | u8 dialog_token; |
a622ab72 | 194 | u8 stop_initiator; |
53f73c09 | 195 | bool tx_stop; |
41cbb0f5 | 196 | u16 buf_size; |
73111efa | 197 | u16 ssn; |
f0425bed FF |
198 | |
199 | u16 failed_bar_ssn; | |
200 | bool bar_pending; | |
e3abc8ff | 201 | bool amsdu; |
7cca2acd | 202 | u8 tid; |
80656c20 | 203 | }; |
5aae2880 RR |
204 | |
205 | /** | |
206 | * struct tid_ampdu_rx - TID aggregation information (Rx). | |
207 | * | |
83eb935e MK |
208 | * @reorder_buf: buffer to reorder incoming aggregated MPDUs. An MPDU may be an |
209 | * A-MSDU with individually reported subframes. | |
06470f74 SS |
210 | * @reorder_buf_filtered: bitmap indicating where there are filtered frames in |
211 | * the reorder buffer that should be ignored when releasing frames | |
4d050f1d | 212 | * @reorder_time: jiffies when skb was added |
5aae2880 | 213 | * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value) |
2bff8ebf | 214 | * @reorder_timer: releases expired frames from the reorder buffer. |
7cca2acd | 215 | * @sta: station we are attached to |
12d3952f | 216 | * @last_rx: jiffies of last rx activity |
056cdd59 JB |
217 | * @head_seq_num: head sequence number in reordering buffer. |
218 | * @stored_mpdu_num: number of MPDUs in reordering buffer | |
cee24a3e RR |
219 | * @ssn: Starting Sequence Number expected to be aggregated. |
220 | * @buf_size: buffer size for incoming A-MPDUs | |
20ad19d0 | 221 | * @timeout: reset timer value (in TUs). |
7cca2acd | 222 | * @tid: TID number |
a87f736d | 223 | * @rcu_head: RCU head used for freeing this struct |
2bff8ebf | 224 | * @reorder_lock: serializes access to reorder buffer, see below. |
4549cf2b MK |
225 | * @auto_seq: used for offloaded BA sessions to automatically pick head_seq_and |
226 | * and ssn. | |
788211d8 | 227 | * @removed: this session is removed (but might have been found due to RCU) |
b7540d8f | 228 | * @started: this session has started (head ssn or higher was received) |
a87f736d | 229 | * |
dd318575 JB |
230 | * This structure's lifetime is managed by RCU, assignments to |
231 | * the array holding it must hold the aggregation mutex. | |
2bff8ebf | 232 | * |
dd318575 JB |
233 | * The @reorder_lock is used to protect the members of this |
234 | * struct, except for @timeout, @buf_size and @dialog_token, | |
235 | * which are constant across the lifetime of the struct (the | |
236 | * dialog token being used only for debugging). | |
5aae2880 RR |
237 | */ |
238 | struct tid_ampdu_rx { | |
a87f736d | 239 | struct rcu_head rcu_head; |
2bff8ebf | 240 | spinlock_t reorder_lock; |
06470f74 | 241 | u64 reorder_buf_filtered; |
83eb935e | 242 | struct sk_buff_head *reorder_buf; |
4d050f1d | 243 | unsigned long *reorder_time; |
7cca2acd | 244 | struct sta_info *sta; |
5aae2880 | 245 | struct timer_list session_timer; |
2bff8ebf | 246 | struct timer_list reorder_timer; |
12d3952f | 247 | unsigned long last_rx; |
056cdd59 JB |
248 | u16 head_seq_num; |
249 | u16 stored_mpdu_num; | |
cee24a3e RR |
250 | u16 ssn; |
251 | u16 buf_size; | |
252 | u16 timeout; | |
7cca2acd | 253 | u8 tid; |
b7540d8f SS |
254 | u8 auto_seq:1, |
255 | removed:1, | |
256 | started:1; | |
5aae2880 RR |
257 | }; |
258 | ||
fcea6007 JB |
259 | /** |
260 | * struct sta_ampdu_mlme - STA aggregation information. | |
261 | * | |
412a6d80 SS |
262 | * @mtx: mutex to protect all TX data (except non-NULL assignments |
263 | * to tid_tx[idx], which are protected by the sta spinlock) | |
264 | * tid_start_tx is also protected by sta->lock. | |
a87f736d | 265 | * @tid_rx: aggregation info for Rx per TID -- RCU protected |
1c3d185a | 266 | * @tid_rx_token: dialog tokens for valid aggregation sessions |
7c3b1dd8 JB |
267 | * @tid_rx_timer_expired: bitmap indicating on which TIDs the |
268 | * RX timer expired until the work for it runs | |
f41ccd71 SL |
269 | * @tid_rx_stop_requested: bitmap indicating which BA sessions per TID the |
270 | * driver requested to close until the work for it runs | |
699cb58c JB |
271 | * @tid_rx_manage_offl: bitmap indicating which BA sessions were requested |
272 | * to be treated as started/stopped due to offloading | |
412a6d80 | 273 | * @agg_session_valid: bitmap indicating which TID has a rx BA session open on |
bfe40fa3 JB |
274 | * @unexpected_agg: bitmap indicating which TID already sent a delBA due to |
275 | * unexpected aggregation related frames outside a session | |
412a6d80 SS |
276 | * @work: work struct for starting/stopping aggregation |
277 | * @tid_tx: aggregation info for Tx per TID | |
278 | * @tid_start_tx: sessions where start was requested | |
279 | * @last_addba_req_time: timestamp of the last addBA request. | |
280 | * @addba_req_num: number of times addBA request has been sent. | |
281 | * @dialog_token_allocator: dialog token enumerator for each new session; | |
fcea6007 JB |
282 | */ |
283 | struct sta_ampdu_mlme { | |
a93e3644 | 284 | struct mutex mtx; |
fcea6007 | 285 | /* rx */ |
5a306f58 | 286 | struct tid_ampdu_rx __rcu *tid_rx[IEEE80211_NUM_TIDS]; |
1c3d185a | 287 | u8 tid_rx_token[IEEE80211_NUM_TIDS]; |
5a306f58 JB |
288 | unsigned long tid_rx_timer_expired[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; |
289 | unsigned long tid_rx_stop_requested[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; | |
699cb58c | 290 | unsigned long tid_rx_manage_offl[BITS_TO_LONGS(2 * IEEE80211_NUM_TIDS)]; |
412a6d80 | 291 | unsigned long agg_session_valid[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; |
bfe40fa3 | 292 | unsigned long unexpected_agg[BITS_TO_LONGS(IEEE80211_NUM_TIDS)]; |
fcea6007 | 293 | /* tx */ |
0ab33703 | 294 | struct work_struct work; |
5a306f58 JB |
295 | struct tid_ampdu_tx __rcu *tid_tx[IEEE80211_NUM_TIDS]; |
296 | struct tid_ampdu_tx *tid_start_tx[IEEE80211_NUM_TIDS]; | |
297 | unsigned long last_addba_req_time[IEEE80211_NUM_TIDS]; | |
298 | u8 addba_req_num[IEEE80211_NUM_TIDS]; | |
fcea6007 JB |
299 | u8 dialog_token_allocator; |
300 | }; | |
301 | ||
302 | ||
b6da911b LK |
303 | /* Value to indicate no TID reservation */ |
304 | #define IEEE80211_TID_UNRESERVED 0xff | |
305 | ||
e495c247 JB |
306 | #define IEEE80211_FAST_XMIT_MAX_IV 18 |
307 | ||
17c18bf8 JB |
308 | /** |
309 | * struct ieee80211_fast_tx - TX fastpath information | |
310 | * @key: key to use for hw crypto | |
311 | * @hdr: the 802.11 header to put with the frame | |
312 | * @hdr_len: actual 802.11 header length | |
313 | * @sa_offs: offset of the SA | |
314 | * @da_offs: offset of the DA | |
315 | * @pn_offs: offset where to put PN for crypto (or 0 if not needed) | |
316 | * @band: band this will be transmitted on, for tx_info | |
317 | * @rcu_head: RCU head to free this struct | |
318 | * | |
e495c247 JB |
319 | * This struct is small enough so that the common case (maximum crypto |
320 | * header length of 8 like for CCMP/GCMP) fits into a single 64-byte | |
321 | * cache line. | |
17c18bf8 JB |
322 | */ |
323 | struct ieee80211_fast_tx { | |
324 | struct ieee80211_key *key; | |
17c18bf8 JB |
325 | u8 hdr_len; |
326 | u8 sa_offs, da_offs, pn_offs; | |
327 | u8 band; | |
e495c247 | 328 | u8 hdr[30 + 2 + IEEE80211_FAST_XMIT_MAX_IV + |
6fe04128 | 329 | sizeof(rfc1042_header)] __aligned(2); |
17c18bf8 JB |
330 | |
331 | struct rcu_head rcu_head; | |
332 | }; | |
333 | ||
49ddf8e6 JB |
334 | /** |
335 | * struct ieee80211_fast_rx - RX fastpath information | |
336 | * @dev: netdevice for reporting the SKB | |
337 | * @vif_type: (P2P-less) interface type of the original sdata (sdata->vif.type) | |
338 | * @vif_addr: interface address | |
339 | * @rfc1042_hdr: copy of the RFC 1042 SNAP header (to have in cache) | |
340 | * @control_port_protocol: control port protocol copied from sdata | |
341 | * @expected_ds_bits: from/to DS bits expected | |
342 | * @icv_len: length of the MIC if present | |
343 | * @key: bool indicating encryption is expected (key is set) | |
49ddf8e6 | 344 | * @internal_forward: forward froms internally on AP/VLAN type interfaces |
c9c5962b | 345 | * @uses_rss: copy of USES_RSS hw flag |
49ddf8e6 JB |
346 | * @da_offs: offset of the DA in the header (for header conversion) |
347 | * @sa_offs: offset of the SA in the header (for header conversion) | |
348 | * @rcu_head: RCU head for freeing this structure | |
349 | */ | |
350 | struct ieee80211_fast_rx { | |
351 | struct net_device *dev; | |
352 | enum nl80211_iftype vif_type; | |
353 | u8 vif_addr[ETH_ALEN] __aligned(2); | |
354 | u8 rfc1042_hdr[6] __aligned(2); | |
355 | __be16 control_port_protocol; | |
356 | __le16 expected_ds_bits; | |
357 | u8 icv_len; | |
358 | u8 key:1, | |
c9c5962b JB |
359 | internal_forward:1, |
360 | uses_rss:1; | |
49ddf8e6 JB |
361 | u8 da_offs, sa_offs; |
362 | ||
363 | struct rcu_head rcu_head; | |
364 | }; | |
365 | ||
3eb0928f MR |
366 | /* we use only values in the range 0-100, so pick a large precision */ |
367 | DECLARE_EWMA(mesh_fail_avg, 20, 8) | |
67fc0554 | 368 | DECLARE_EWMA(mesh_tx_rate_avg, 8, 16) |
3eb0928f | 369 | |
433f5bc1 JB |
370 | /** |
371 | * struct mesh_sta - mesh STA information | |
372 | * @plink_lock: serialize access to plink fields | |
373 | * @llid: Local link ID | |
374 | * @plid: Peer link ID | |
a69bd8e6 | 375 | * @aid: local aid supplied by peer |
433f5bc1 JB |
376 | * @reason: Cancel reason on PLINK_HOLDING state |
377 | * @plink_retries: Retries in establishment | |
378 | * @plink_state: peer link state | |
379 | * @plink_timeout: timeout of peer link | |
380 | * @plink_timer: peer link watch timer | |
4c02d62f | 381 | * @plink_sta: peer link watch timer's sta_info |
433f5bc1 JB |
382 | * @t_offset: timing offset relative to this host |
383 | * @t_offset_setpoint: reference timing offset of this sta to be used when | |
384 | * calculating clockdrift | |
385 | * @local_pm: local link-specific power save mode | |
386 | * @peer_pm: peer-specific power save mode towards local STA | |
387 | * @nonpeer_pm: STA power save mode towards non-peer neighbors | |
388 | * @processed_beacon: set to true after peer rates and capabilities are | |
389 | * processed | |
dbdaee7a | 390 | * @connected_to_gate: true if mesh STA has a path to a mesh gate |
1303a51c | 391 | * @connected_to_as: true if mesh STA has a path to a authentication server |
a76d5e0a | 392 | * @fail_avg: moving percentage of failed MSDUs |
67fc0554 | 393 | * @tx_rate_avg: moving average of tx bitrate |
433f5bc1 JB |
394 | */ |
395 | struct mesh_sta { | |
396 | struct timer_list plink_timer; | |
4c02d62f | 397 | struct sta_info *plink_sta; |
433f5bc1 JB |
398 | |
399 | s64 t_offset; | |
400 | s64 t_offset_setpoint; | |
401 | ||
402 | spinlock_t plink_lock; | |
403 | u16 llid; | |
404 | u16 plid; | |
a69bd8e6 | 405 | u16 aid; |
433f5bc1 JB |
406 | u16 reason; |
407 | u8 plink_retries; | |
408 | ||
409 | bool processed_beacon; | |
dbdaee7a | 410 | bool connected_to_gate; |
1303a51c | 411 | bool connected_to_as; |
433f5bc1 JB |
412 | |
413 | enum nl80211_plink_state plink_state; | |
414 | u32 plink_timeout; | |
415 | ||
416 | /* mesh power save */ | |
417 | enum nl80211_mesh_power_mode local_pm; | |
418 | enum nl80211_mesh_power_mode peer_pm; | |
419 | enum nl80211_mesh_power_mode nonpeer_pm; | |
a76d5e0a JB |
420 | |
421 | /* moving percentage of failed MSDUs */ | |
3eb0928f | 422 | struct ewma_mesh_fail_avg fail_avg; |
67fc0554 JH |
423 | /* moving average of tx bitrate */ |
424 | struct ewma_mesh_tx_rate_avg tx_rate_avg; | |
433f5bc1 JB |
425 | }; |
426 | ||
eb1e011a | 427 | DECLARE_EWMA(signal, 10, 8) |
40d9a38a | 428 | |
c9c5962b JB |
429 | struct ieee80211_sta_rx_stats { |
430 | unsigned long packets; | |
431 | unsigned long last_rx; | |
432 | unsigned long num_duplicates; | |
433 | unsigned long fragments; | |
434 | unsigned long dropped; | |
435 | int last_signal; | |
436 | u8 chains; | |
437 | s8 chain_signal_last[IEEE80211_MAX_CHAINS]; | |
41cbb0f5 | 438 | u32 last_rate; |
c9c5962b JB |
439 | struct u64_stats_sync syncp; |
440 | u64 bytes; | |
441 | u64 msdu[IEEE80211_NUM_TIDS + 1]; | |
442 | }; | |
443 | ||
3a11ce08 JB |
444 | /* |
445 | * IEEE 802.11-2016 (10.6 "Defragmentation") recommends support for "concurrent | |
446 | * reception of at least one MSDU per access category per associated STA" | |
447 | * on APs, or "at least one MSDU per access category" on other interface types. | |
448 | * | |
449 | * This limit can be increased by changing this define, at the cost of slower | |
450 | * frame reassembly and increased memory use while fragments are pending. | |
451 | */ | |
452 | #define IEEE80211_FRAGMENT_MAX 4 | |
453 | ||
454 | struct ieee80211_fragment_entry { | |
455 | struct sk_buff_head skb_list; | |
456 | unsigned long first_frag_time; | |
457 | u16 seq; | |
458 | u16 extra_len; | |
459 | u16 last_frag; | |
460 | u8 rx_queue; | |
7e44a0b5 JB |
461 | u8 check_sequential_pn:1, /* needed for CCMP/GCMP */ |
462 | is_protected:1; | |
3a11ce08 JB |
463 | u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ |
464 | unsigned int key_color; | |
465 | }; | |
466 | ||
467 | struct ieee80211_fragment_cache { | |
468 | struct ieee80211_fragment_entry entries[IEEE80211_FRAGMENT_MAX]; | |
469 | unsigned int next; | |
470 | }; | |
471 | ||
8f797c28 | 472 | /* |
484a54c2 THJ |
473 | * The bandwidth threshold below which the per-station CoDel parameters will be |
474 | * scaled to be more lenient (to prevent starvation of slow stations). This | |
475 | * value will be scaled by the number of active stations when it is being | |
476 | * applied. | |
477 | */ | |
478 | #define STA_SLOW_THRESHOLD 6000 /* 6 Mbps */ | |
479 | ||
046d2e7c S |
480 | /** |
481 | * struct link_sta_info - Link STA information | |
482 | * All link specific sta info are stored here for reference. This can be | |
483 | * a single entry for non-MLD STA or multiple entries for MLD STA | |
484 | * @addr: Link MAC address - Can be same as MLD STA mac address and is always | |
485 | * same for non-MLD STA. This is used as key for searching link STA | |
486 | * @link_id: Link ID uniquely identifying the link STA. This is 0 for non-MLD | |
487 | * and set to the corresponding vif LinkId for MLD STA | |
ba6ddab9 | 488 | * @link_hash_node: hash node for rhashtable |
046d2e7c S |
489 | * @sta: Points to the STA info |
490 | * @gtk: group keys negotiated with this station, if any | |
491 | * @tx_stats: TX statistics | |
492 | * @tx_stats.packets: # of packets transmitted | |
493 | * @tx_stats.bytes: # of bytes in all packets transmitted | |
494 | * @tx_stats.last_rate: last TX rate | |
495 | * @tx_stats.msdu: # of transmitted MSDUs per TID | |
496 | * @rx_stats: RX statistics | |
497 | * @rx_stats_avg: averaged RX statistics | |
498 | * @rx_stats_avg.signal: averaged signal | |
499 | * @rx_stats_avg.chain_signal: averaged per-chain signal | |
500 | * @pcpu_rx_stats: per-CPU RX statistics, assigned only if the driver needs | |
501 | * this (by advertising the USES_RSS hw flag) | |
502 | * @status_stats: TX status statistics | |
503 | * @status_stats.filtered: # of filtered frames | |
504 | * @status_stats.retry_failed: # of frames that failed after retry | |
505 | * @status_stats.retry_count: # of retries attempted | |
506 | * @status_stats.lost_packets: # of lost packets | |
507 | * @status_stats.last_pkt_time: timestamp of last ACKed packet | |
508 | * @status_stats.msdu_retries: # of MSDU retries | |
509 | * @status_stats.msdu_failed: # of failed MSDUs | |
510 | * @status_stats.last_ack: last ack timestamp (jiffies) | |
511 | * @status_stats.last_ack_signal: last ACK signal | |
512 | * @status_stats.ack_signal_filled: last ACK signal validity | |
513 | * @status_stats.avg_ack_signal: average ACK signal | |
fe37f73d MCC |
514 | * @cur_max_bandwidth: maximum bandwidth to use for TX to the station, |
515 | * taken from HT/VHT capabilities or VHT operating mode notification | |
d2caad52 | 516 | * @debugfs_dir: debug filesystem directory dentry |
c71420db | 517 | * @pub: public (driver visible) link STA data |
046d2e7c S |
518 | * TODO Move other link params from sta_info as required for MLD operation |
519 | */ | |
520 | struct link_sta_info { | |
521 | u8 addr[ETH_ALEN]; | |
522 | u8 link_id; | |
523 | ||
ba6ddab9 | 524 | struct rhlist_head link_hash_node; |
046d2e7c S |
525 | |
526 | struct sta_info *sta; | |
527 | struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + | |
528 | NUM_DEFAULT_MGMT_KEYS + | |
529 | NUM_DEFAULT_BEACON_KEYS]; | |
530 | struct ieee80211_sta_rx_stats __percpu *pcpu_rx_stats; | |
531 | ||
532 | /* Updated from RX path only, no locking requirements */ | |
533 | struct ieee80211_sta_rx_stats rx_stats; | |
534 | struct { | |
535 | struct ewma_signal signal; | |
536 | struct ewma_signal chain_signal[IEEE80211_MAX_CHAINS]; | |
537 | } rx_stats_avg; | |
538 | ||
539 | /* Updated from TX status path only, no locking requirements */ | |
540 | struct { | |
541 | unsigned long filtered; | |
542 | unsigned long retry_failed, retry_count; | |
543 | unsigned int lost_packets; | |
544 | unsigned long last_pkt_time; | |
545 | u64 msdu_retries[IEEE80211_NUM_TIDS + 1]; | |
546 | u64 msdu_failed[IEEE80211_NUM_TIDS + 1]; | |
547 | unsigned long last_ack; | |
548 | s8 last_ack_signal; | |
549 | bool ack_signal_filled; | |
550 | struct ewma_avg_signal avg_ack_signal; | |
551 | } status_stats; | |
552 | ||
553 | /* Updated from TX path only, no locking requirements */ | |
554 | struct { | |
555 | u64 packets[IEEE80211_NUM_ACS]; | |
556 | u64 bytes[IEEE80211_NUM_ACS]; | |
557 | struct ieee80211_tx_rate last_rate; | |
558 | struct rate_info last_rate_info; | |
559 | u64 msdu[IEEE80211_NUM_TIDS + 1]; | |
560 | } tx_stats; | |
561 | ||
562 | enum ieee80211_sta_rx_bandwidth cur_max_bandwidth; | |
c71420db | 563 | |
d2caad52 BB |
564 | #ifdef CONFIG_MAC80211_DEBUGFS |
565 | struct dentry *debugfs_dir; | |
566 | #endif | |
567 | ||
c71420db | 568 | struct ieee80211_link_sta *pub; |
046d2e7c S |
569 | }; |
570 | ||
693b1bbc JB |
571 | /** |
572 | * struct sta_info - STA information | |
573 | * | |
574 | * This structure collects information about a station that | |
575 | * mac80211 is communicating with. | |
576 | * | |
577 | * @list: global linked list entry | |
d778207b | 578 | * @free_list: list entry for keeping track of stations to free |
7bedd0cf | 579 | * @hash_node: hash node for rhashtable |
ac100ce5 JB |
580 | * @addr: station's MAC address - duplicated from public part to |
581 | * let the hash table work with just a single cacheline | |
693b1bbc | 582 | * @local: pointer to the global information |
e25cf4a6 | 583 | * @sdata: virtual interface this station belongs to |
2475b1cc MS |
584 | * @ptk: peer keys negotiated with this station, if any |
585 | * @ptk_idx: last installed peer key index | |
e25cf4a6 | 586 | * @rate_ctrl: rate control algorithm reference |
bbbe8c8c JB |
587 | * @rate_ctrl_lock: spinlock used to protect rate control data |
588 | * (data inside the algorithm, so serializes calls there) | |
e25cf4a6 | 589 | * @rate_ctrl_priv: rate control private per-STA pointer |
6ef307bc RD |
590 | * @lock: used for locking all fields that require locking, see comments |
591 | * in the header file. | |
5ac2e350 | 592 | * @drv_deliver_wk: used for delivering frames after driver PS unblocking |
e25cf4a6 | 593 | * @listen_interval: listen interval of this station, when we're acting as AP |
c2c98fde | 594 | * @_flags: STA flags, see &enum ieee80211_sta_info_flags, do not use directly |
1d147bfa | 595 | * @ps_lock: used for powersave (when mac80211 is the AP) related locking |
948d887d JB |
596 | * @ps_tx_buf: buffers (per AC) of frames to transmit to this station |
597 | * when it leaves power saving state or polls | |
598 | * @tx_filtered: buffers (per AC) of frames we already tried to | |
599 | * transmit but were filtered by hardware due to STA having | |
600 | * entered power saving state, these are also delivered to | |
601 | * the station when it leaves powersave or polls for frames | |
602 | * @driver_buffered_tids: bitmap of TIDs the driver has data buffered on | |
ba8c3d6f | 603 | * @txq_buffered_tids: bitmap of TIDs that mac80211 has txq data buffered on |
9cf02338 | 604 | * @assoc_at: clock boottime (in ns) of last association |
ebe27c91 | 605 | * @last_connected: time (in seconds) when a station got connected |
798a457d JB |
606 | * @last_seq_ctrl: last received seq/frag number from this STA (per TID |
607 | * plus one for non-QoS frames) | |
e25cf4a6 | 608 | * @tid_seq: per-TID sequence numbers for sending to this STA |
cb86880e THJ |
609 | * @airtime: per-AC struct airtime_info describing airtime statistics for this |
610 | * station | |
942741da | 611 | * @airtime_weight: station weight for airtime fairness calculation purposes |
e25cf4a6 | 612 | * @ampdu_mlme: A-MPDU state machine state |
433f5bc1 | 613 | * @mesh: mesh STA information |
fc4a25c5 | 614 | * @debugfs_dir: debug filesystem directory dentry |
af818581 | 615 | * @dead: set to true when sta is unlinked |
ef044763 | 616 | * @removed: set to true when sta is being removed from sta_list |
34e89507 | 617 | * @uploaded: set to true when sta is uploaded to the driver |
2a33bee2 | 618 | * @sta: station information we share with the driver |
d9a7ddb0 | 619 | * @sta_state: duplicates information about station state (for debug) |
077f897a | 620 | * @rcu_head: RCU head used for freeing this station struct |
0af83d3d JB |
621 | * @cur_max_bandwidth: maximum bandwidth to use for TX to the station, |
622 | * taken from HT/VHT capabilities or VHT operating mode notification | |
484a54c2 | 623 | * @cparams: CoDel parameters for this station. |
b6da911b | 624 | * @reserved_tid: reserved TID (if any, otherwise IEEE80211_TID_UNRESERVED) |
f102424b BS |
625 | * @amsdu_mesh_control: track the mesh A-MSDU format used by the peer: |
626 | * | |
627 | * * -1: not yet known | |
628 | * * 0: non-mesh A-MSDU length field | |
629 | * * 1: big-endian mesh A-MSDU length field | |
630 | * * 2: little-endian mesh A-MSDU length field | |
631 | * | |
17c18bf8 | 632 | * @fast_tx: TX fastpath information |
49ddf8e6 | 633 | * @fast_rx: RX fastpath information |
0fabfaaf AN |
634 | * @tdls_chandef: a TDLS peer can have a wider chandef that is compatible to |
635 | * the BSS one. | |
3a11ce08 | 636 | * @frags: fragment cache |
4c51541d BB |
637 | * @cur: storage for aggregation data |
638 | * &struct ieee80211_sta points either here or to deflink.agg. | |
046d2e7c S |
639 | * @deflink: This is the default link STA information, for non MLO STA all link |
640 | * specific STA information is accessed through @deflink or through | |
641 | * link[0] which points to address of @deflink. For MLO Link STA | |
642 | * the first added link STA will point to deflink. | |
643 | * @link: reference to Link Sta entries. For Non MLO STA, except 1st link, | |
644 | * i.e link[0] all links would be assigned to NULL by default and | |
645 | * would access link information via @deflink or link[0]. For MLO | |
646 | * STA, first link STA being added will point its link pointer to | |
647 | * @deflink address and remaining would be allocated and the address | |
648 | * would be assigned to link[link_id] where link_id is the id assigned | |
649 | * by the AP. | |
693b1bbc | 650 | */ |
f0706e82 | 651 | struct sta_info { |
693b1bbc | 652 | /* General information, mostly static */ |
d778207b | 653 | struct list_head list, free_list; |
b22cfcfc | 654 | struct rcu_head rcu_head; |
83e7e4ce | 655 | struct rhlist_head hash_node; |
ac100ce5 | 656 | u8 addr[ETH_ALEN]; |
f0706e82 | 657 | struct ieee80211_local *local; |
d0709a65 | 658 | struct ieee80211_sub_if_data *sdata; |
2475b1cc | 659 | struct ieee80211_key __rcu *ptk[NUM_DEFAULT_KEYS]; |
2475b1cc | 660 | u8 ptk_idx; |
f0706e82 JB |
661 | struct rate_control_ref *rate_ctrl; |
662 | void *rate_ctrl_priv; | |
35c347ac | 663 | spinlock_t rate_ctrl_lock; |
07346f81 | 664 | spinlock_t lock; |
17741cdc | 665 | |
17c18bf8 | 666 | struct ieee80211_fast_tx __rcu *fast_tx; |
49ddf8e6 | 667 | struct ieee80211_fast_rx __rcu *fast_rx; |
17c18bf8 | 668 | |
433f5bc1 JB |
669 | #ifdef CONFIG_MAC80211_MESH |
670 | struct mesh_sta *mesh; | |
671 | #endif | |
672 | ||
5ac2e350 | 673 | struct work_struct drv_deliver_wk; |
af818581 | 674 | |
693b1bbc | 675 | u16 listen_interval; |
f0706e82 | 676 | |
af818581 | 677 | bool dead; |
ef044763 | 678 | bool removed; |
af818581 | 679 | |
34e89507 | 680 | bool uploaded; |
693b1bbc | 681 | |
d9a7ddb0 JB |
682 | enum ieee80211_sta_state sta_state; |
683 | ||
c2c98fde JB |
684 | /* use the accessors defined below */ |
685 | unsigned long _flags; | |
693b1bbc | 686 | |
1d147bfa EG |
687 | /* STA powersave lock and frame queues */ |
688 | spinlock_t ps_lock; | |
948d887d JB |
689 | struct sk_buff_head ps_tx_buf[IEEE80211_NUM_ACS]; |
690 | struct sk_buff_head tx_filtered[IEEE80211_NUM_ACS]; | |
691 | unsigned long driver_buffered_tids; | |
ba8c3d6f | 692 | unsigned long txq_buffered_tids; |
693b1bbc | 693 | |
9cf02338 | 694 | u64 assoc_at; |
ebe27c91 | 695 | long last_connected; |
ef0621e8 | 696 | |
9e26297a | 697 | /* Plus 1 for non-QoS frames */ |
5a306f58 | 698 | __le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1]; |
693b1bbc | 699 | |
f591fa5d | 700 | u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1]; |
f0706e82 | 701 | |
b4809e94 | 702 | struct airtime_info airtime[IEEE80211_NUM_ACS]; |
942741da | 703 | u16 airtime_weight; |
b4809e94 | 704 | |
d0709a65 | 705 | /* |
07346f81 | 706 | * Aggregation information, locked with lock. |
d0709a65 | 707 | */ |
5aae2880 | 708 | struct sta_ampdu_mlme ampdu_mlme; |
693b1bbc | 709 | |
e9f207f0 | 710 | #ifdef CONFIG_MAC80211_DEBUGFS |
fc4a25c5 | 711 | struct dentry *debugfs_dir; |
e9f207f0 | 712 | #endif |
17741cdc | 713 | |
484a54c2 THJ |
714 | struct codel_params cparams; |
715 | ||
b6da911b | 716 | u8 reserved_tid; |
6e4c0d04 | 717 | s8 amsdu_mesh_control; |
b6da911b | 718 | |
0fabfaaf AN |
719 | struct cfg80211_chan_def tdls_chandef; |
720 | ||
3a11ce08 JB |
721 | struct ieee80211_fragment_cache frags; |
722 | ||
4c51541d | 723 | struct ieee80211_sta_aggregates cur; |
046d2e7c | 724 | struct link_sta_info deflink; |
c71420db | 725 | struct link_sta_info __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; |
046d2e7c | 726 | |
17741cdc JB |
727 | /* keep last! */ |
728 | struct ieee80211_sta sta; | |
f0706e82 JB |
729 | }; |
730 | ||
57cf8043 | 731 | static inline enum nl80211_plink_state sta_plink_state(struct sta_info *sta) |
d6d1a5a7 JB |
732 | { |
733 | #ifdef CONFIG_MAC80211_MESH | |
433f5bc1 | 734 | return sta->mesh->plink_state; |
d6d1a5a7 | 735 | #endif |
57cf8043 | 736 | return NL80211_PLINK_LISTEN; |
d6d1a5a7 JB |
737 | } |
738 | ||
c2c98fde JB |
739 | static inline void set_sta_flag(struct sta_info *sta, |
740 | enum ieee80211_sta_info_flags flag) | |
07346f81 | 741 | { |
d9a7ddb0 JB |
742 | WARN_ON(flag == WLAN_STA_AUTH || |
743 | flag == WLAN_STA_ASSOC || | |
744 | flag == WLAN_STA_AUTHORIZED); | |
c2c98fde | 745 | set_bit(flag, &sta->_flags); |
07346f81 JB |
746 | } |
747 | ||
c2c98fde JB |
748 | static inline void clear_sta_flag(struct sta_info *sta, |
749 | enum ieee80211_sta_info_flags flag) | |
07346f81 | 750 | { |
d9a7ddb0 JB |
751 | WARN_ON(flag == WLAN_STA_AUTH || |
752 | flag == WLAN_STA_ASSOC || | |
753 | flag == WLAN_STA_AUTHORIZED); | |
c2c98fde | 754 | clear_bit(flag, &sta->_flags); |
07346f81 JB |
755 | } |
756 | ||
c2c98fde JB |
757 | static inline int test_sta_flag(struct sta_info *sta, |
758 | enum ieee80211_sta_info_flags flag) | |
07346f81 | 759 | { |
c2c98fde | 760 | return test_bit(flag, &sta->_flags); |
07346f81 JB |
761 | } |
762 | ||
c2c98fde JB |
763 | static inline int test_and_clear_sta_flag(struct sta_info *sta, |
764 | enum ieee80211_sta_info_flags flag) | |
07346f81 | 765 | { |
d9a7ddb0 JB |
766 | WARN_ON(flag == WLAN_STA_AUTH || |
767 | flag == WLAN_STA_ASSOC || | |
768 | flag == WLAN_STA_AUTHORIZED); | |
c2c98fde | 769 | return test_and_clear_bit(flag, &sta->_flags); |
07346f81 JB |
770 | } |
771 | ||
e7f4a940 JB |
772 | static inline int test_and_set_sta_flag(struct sta_info *sta, |
773 | enum ieee80211_sta_info_flags flag) | |
774 | { | |
d9a7ddb0 JB |
775 | WARN_ON(flag == WLAN_STA_AUTH || |
776 | flag == WLAN_STA_ASSOC || | |
777 | flag == WLAN_STA_AUTHORIZED); | |
e7f4a940 JB |
778 | return test_and_set_bit(flag, &sta->_flags); |
779 | } | |
780 | ||
83d5cc01 JB |
781 | int sta_info_move_state(struct sta_info *sta, |
782 | enum ieee80211_sta_state new_state); | |
d9a7ddb0 | 783 | |
83d5cc01 JB |
784 | static inline void sta_info_pre_move_state(struct sta_info *sta, |
785 | enum ieee80211_sta_state new_state) | |
d9a7ddb0 | 786 | { |
83d5cc01 JB |
787 | int ret; |
788 | ||
789 | WARN_ON_ONCE(test_sta_flag(sta, WLAN_STA_INSERTED)); | |
790 | ||
791 | ret = sta_info_move_state(sta, new_state); | |
d9a7ddb0 JB |
792 | WARN_ON_ONCE(ret); |
793 | } | |
794 | ||
795 | ||
ec034b20 JB |
796 | void ieee80211_assign_tid_tx(struct sta_info *sta, int tid, |
797 | struct tid_ampdu_tx *tid_tx); | |
f0706e82 | 798 | |
40b275b6 JB |
799 | static inline struct tid_ampdu_tx * |
800 | rcu_dereference_protected_tid_tx(struct sta_info *sta, int tid) | |
801 | { | |
802 | return rcu_dereference_protected(sta->ampdu_mlme.tid_tx[tid], | |
803 | lockdep_is_held(&sta->lock) || | |
804 | lockdep_is_held(&sta->ampdu_mlme.mtx)); | |
805 | } | |
f0706e82 | 806 | |
948d887d JB |
807 | /* Maximum number of frames to buffer per power saving station per AC */ |
808 | #define STA_MAX_TX_BUFFER 64 | |
f0706e82 JB |
809 | |
810 | /* Minimum buffered frame expiry time. If STA uses listen interval that is | |
811 | * smaller than this value, the minimum value here is used instead. */ | |
812 | #define STA_TX_BUFFER_EXPIRE (10 * HZ) | |
813 | ||
814 | /* How often station data is cleaned up (e.g., expiration of buffered frames) | |
815 | */ | |
816 | #define STA_INFO_CLEANUP_INTERVAL (10 * HZ) | |
817 | ||
83e7e4ce HX |
818 | struct rhlist_head *sta_info_hash_lookup(struct ieee80211_local *local, |
819 | const u8 *addr); | |
820 | ||
d0709a65 | 821 | /* |
abe60632 | 822 | * Get a STA info, must be under RCU read lock. |
d0709a65 | 823 | */ |
abe60632 JB |
824 | struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata, |
825 | const u8 *addr); | |
826 | ||
0e5ded5a FF |
827 | struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata, |
828 | const u8 *addr); | |
829 | ||
5072f73c THJ |
830 | /* user must hold sta_mtx or be in RCU critical section */ |
831 | struct sta_info *sta_info_get_by_addrs(struct ieee80211_local *local, | |
832 | const u8 *sta_addr, const u8 *vif_addr); | |
833 | ||
83e7e4ce HX |
834 | #define for_each_sta_info(local, _addr, _sta, _tmp) \ |
835 | rhl_for_each_entry_rcu(_sta, _tmp, \ | |
836 | sta_info_hash_lookup(local, _addr), hash_node) | |
abe60632 | 837 | |
ba6ddab9 JB |
838 | struct rhlist_head *link_sta_info_hash_lookup(struct ieee80211_local *local, |
839 | const u8 *addr); | |
840 | ||
841 | #define for_each_link_sta_info(local, _addr, _sta, _tmp) \ | |
842 | rhl_for_each_entry_rcu(_sta, _tmp, \ | |
843 | link_sta_info_hash_lookup(local, _addr), \ | |
844 | link_hash_node) | |
845 | ||
846 | struct link_sta_info * | |
847 | link_sta_info_get_bss(struct ieee80211_sub_if_data *sdata, const u8 *addr); | |
848 | ||
d0709a65 JB |
849 | /* |
850 | * Get STA info by index, BROKEN! | |
851 | */ | |
3b53fde8 JB |
852 | struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata, |
853 | int idx); | |
d0709a65 | 854 | /* |
73651ee6 JB |
855 | * Create a new STA info, caller owns returned structure |
856 | * until sta_info_insert(). | |
d0709a65 | 857 | */ |
73651ee6 | 858 | struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata, |
f36fe0a2 JB |
859 | const u8 *addr, gfp_t gfp); |
860 | struct sta_info *sta_info_alloc_with_link(struct ieee80211_sub_if_data *sdata, | |
861 | const u8 *mld_addr, | |
862 | unsigned int link_id, | |
863 | const u8 *link_addr, | |
864 | gfp_t gfp); | |
d9a7ddb0 JB |
865 | |
866 | void sta_info_free(struct ieee80211_local *local, struct sta_info *sta); | |
867 | ||
73651ee6 JB |
868 | /* |
869 | * Insert STA info into hash table/list, returns zero or a | |
870 | * -EEXIST if (if the same MAC address is already present). | |
871 | * | |
34e89507 JB |
872 | * Calling the non-rcu version makes the caller relinquish, |
873 | * the _rcu version calls read_lock_rcu() and must be called | |
874 | * without it held. | |
73651ee6 JB |
875 | */ |
876 | int sta_info_insert(struct sta_info *sta); | |
34e89507 | 877 | int sta_info_insert_rcu(struct sta_info *sta) __acquires(RCU); |
34e89507 | 878 | |
83d5cc01 | 879 | int __must_check __sta_info_destroy(struct sta_info *sta); |
34e89507 JB |
880 | int sta_info_destroy_addr(struct ieee80211_sub_if_data *sdata, |
881 | const u8 *addr); | |
882 | int sta_info_destroy_addr_bss(struct ieee80211_sub_if_data *sdata, | |
883 | const u8 *addr); | |
f0706e82 | 884 | |
c868cb35 | 885 | void sta_info_recalc_tim(struct sta_info *sta); |
004c872e | 886 | |
7bedd0cf | 887 | int sta_info_init(struct ieee80211_local *local); |
d0709a65 | 888 | void sta_info_stop(struct ieee80211_local *local); |
051007d9 JB |
889 | |
890 | /** | |
b1e8eb11 | 891 | * __sta_info_flush - flush matching STA entries from the STA table |
051007d9 JB |
892 | * |
893 | * Returns the number of removed STA entries. | |
894 | * | |
895 | * @sdata: sdata to remove all stations from | |
e716251d | 896 | * @vlans: if the given interface is an AP interface, also flush VLANs |
051007d9 | 897 | */ |
e716251d JB |
898 | int __sta_info_flush(struct ieee80211_sub_if_data *sdata, bool vlans); |
899 | ||
b1e8eb11 MCC |
900 | /** |
901 | * sta_info_flush - flush matching STA entries from the STA table | |
902 | * | |
903 | * Returns the number of removed STA entries. | |
904 | * | |
905 | * @sdata: sdata to remove all stations from | |
906 | */ | |
e716251d JB |
907 | static inline int sta_info_flush(struct ieee80211_sub_if_data *sdata) |
908 | { | |
909 | return __sta_info_flush(sdata, false); | |
910 | } | |
051007d9 | 911 | |
6b62bf32 TP |
912 | void sta_set_rate_info_tx(struct sta_info *sta, |
913 | const struct ieee80211_tx_rate *rate, | |
914 | struct rate_info *rinfo); | |
0fdf1493 JB |
915 | void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo, |
916 | bool tidstats); | |
b7ffbd7e | 917 | |
3b17fbf8 MA |
918 | u32 sta_get_expected_throughput(struct sta_info *sta); |
919 | ||
24723d1b JB |
920 | void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, |
921 | unsigned long exp_time); | |
d0709a65 | 922 | |
cb71f1d1 | 923 | int ieee80211_sta_allocate_link(struct sta_info *sta, unsigned int link_id); |
21476ad1 | 924 | void ieee80211_sta_free_link(struct sta_info *sta, unsigned int link_id); |
cb71f1d1 JB |
925 | int ieee80211_sta_activate_link(struct sta_info *sta, unsigned int link_id); |
926 | void ieee80211_sta_remove_link(struct sta_info *sta, unsigned int link_id); | |
927 | ||
af818581 JB |
928 | void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta); |
929 | void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta); | |
47086fc5 | 930 | void ieee80211_sta_ps_deliver_uapsd(struct sta_info *sta); |
af818581 | 931 | |
b8da6b6a JB |
932 | unsigned long ieee80211_sta_last_active(struct sta_info *sta); |
933 | ||
175ad2ec JB |
934 | void ieee80211_sta_set_max_amsdu_subframes(struct sta_info *sta, |
935 | const u8 *ext_capab, | |
936 | unsigned int ext_capab_len); | |
937 | ||
9b41a9d7 JB |
938 | void __ieee80211_sta_recalc_aggregates(struct sta_info *sta, u16 active_links); |
939 | ||
dcba665b JB |
940 | enum sta_stats_type { |
941 | STA_STATS_RATE_TYPE_INVALID = 0, | |
942 | STA_STATS_RATE_TYPE_LEGACY, | |
943 | STA_STATS_RATE_TYPE_HT, | |
944 | STA_STATS_RATE_TYPE_VHT, | |
41cbb0f5 | 945 | STA_STATS_RATE_TYPE_HE, |
12bf8fad | 946 | STA_STATS_RATE_TYPE_S1G, |
f66c48af | 947 | STA_STATS_RATE_TYPE_EHT, |
dcba665b JB |
948 | }; |
949 | ||
950 | #define STA_STATS_FIELD_HT_MCS GENMASK( 7, 0) | |
951 | #define STA_STATS_FIELD_LEGACY_IDX GENMASK( 3, 0) | |
952 | #define STA_STATS_FIELD_LEGACY_BAND GENMASK( 7, 4) | |
953 | #define STA_STATS_FIELD_VHT_MCS GENMASK( 3, 0) | |
954 | #define STA_STATS_FIELD_VHT_NSS GENMASK( 7, 4) | |
41cbb0f5 LC |
955 | #define STA_STATS_FIELD_HE_MCS GENMASK( 3, 0) |
956 | #define STA_STATS_FIELD_HE_NSS GENMASK( 7, 4) | |
f66c48af JB |
957 | #define STA_STATS_FIELD_EHT_MCS GENMASK( 3, 0) |
958 | #define STA_STATS_FIELD_EHT_NSS GENMASK( 7, 4) | |
959 | #define STA_STATS_FIELD_BW GENMASK(12, 8) | |
960 | #define STA_STATS_FIELD_SGI GENMASK(13, 13) | |
961 | #define STA_STATS_FIELD_TYPE GENMASK(16, 14) | |
962 | #define STA_STATS_FIELD_HE_RU GENMASK(19, 17) | |
963 | #define STA_STATS_FIELD_HE_GI GENMASK(21, 20) | |
964 | #define STA_STATS_FIELD_HE_DCM GENMASK(22, 22) | |
965 | #define STA_STATS_FIELD_EHT_RU GENMASK(20, 17) | |
966 | #define STA_STATS_FIELD_EHT_GI GENMASK(22, 21) | |
dcba665b JB |
967 | |
968 | #define STA_STATS_FIELD(_n, _v) FIELD_PREP(STA_STATS_FIELD_ ## _n, _v) | |
969 | #define STA_STATS_GET(_n, _v) FIELD_GET(STA_STATS_FIELD_ ## _n, _v) | |
970 | ||
4f6b1b3d | 971 | #define STA_STATS_RATE_INVALID 0 |
dcba665b JB |
972 | |
973 | static inline u32 sta_stats_encode_rate(struct ieee80211_rx_status *s) | |
4f6b1b3d | 974 | { |
41cbb0f5 | 975 | u32 r; |
4f6b1b3d | 976 | |
dcba665b | 977 | r = STA_STATS_FIELD(BW, s->bw); |
4f6b1b3d | 978 | |
7fdd69c5 | 979 | if (s->enc_flags & RX_ENC_FLAG_SHORT_GI) |
dcba665b | 980 | r |= STA_STATS_FIELD(SGI, 1); |
4f6b1b3d | 981 | |
da6a4352 JB |
982 | switch (s->encoding) { |
983 | case RX_ENC_VHT: | |
dcba665b JB |
984 | r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_VHT); |
985 | r |= STA_STATS_FIELD(VHT_NSS, s->nss); | |
986 | r |= STA_STATS_FIELD(VHT_MCS, s->rate_idx); | |
da6a4352 JB |
987 | break; |
988 | case RX_ENC_HT: | |
dcba665b JB |
989 | r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_HT); |
990 | r |= STA_STATS_FIELD(HT_MCS, s->rate_idx); | |
da6a4352 | 991 | break; |
da6a4352 | 992 | case RX_ENC_LEGACY: |
dcba665b JB |
993 | r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_LEGACY); |
994 | r |= STA_STATS_FIELD(LEGACY_BAND, s->band); | |
995 | r |= STA_STATS_FIELD(LEGACY_IDX, s->rate_idx); | |
da6a4352 | 996 | break; |
41cbb0f5 LC |
997 | case RX_ENC_HE: |
998 | r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_HE); | |
999 | r |= STA_STATS_FIELD(HE_NSS, s->nss); | |
1000 | r |= STA_STATS_FIELD(HE_MCS, s->rate_idx); | |
1001 | r |= STA_STATS_FIELD(HE_GI, s->he_gi); | |
1002 | r |= STA_STATS_FIELD(HE_RU, s->he_ru); | |
1003 | r |= STA_STATS_FIELD(HE_DCM, s->he_dcm); | |
1004 | break; | |
f66c48af JB |
1005 | case RX_ENC_EHT: |
1006 | r |= STA_STATS_FIELD(TYPE, STA_STATS_RATE_TYPE_EHT); | |
1007 | r |= STA_STATS_FIELD(EHT_NSS, s->nss); | |
1008 | r |= STA_STATS_FIELD(EHT_MCS, s->rate_idx); | |
1009 | r |= STA_STATS_FIELD(EHT_GI, s->eht.gi); | |
1010 | r |= STA_STATS_FIELD(EHT_RU, s->eht.ru); | |
1011 | break; | |
dcba665b JB |
1012 | default: |
1013 | WARN_ON(1); | |
1014 | return STA_STATS_RATE_INVALID; | |
da6a4352 | 1015 | } |
4f6b1b3d JB |
1016 | |
1017 | return r; | |
1018 | } | |
1019 | ||
f0706e82 | 1020 | #endif /* STA_INFO_H */ |