1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
2 /*
3 * Copyright (C) 2012-2014, 2018-2022 Intel Corporation
4 * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
5 * Copyright (C) 2015-2016 Intel Deutschland GmbH
6 */
7 #ifndef __sta_h__
8 #define __sta_h__
9
10 #include <linux/spinlock.h>
11 #include <net/mac80211.h>
12 #include <linux/wait.h>
13
14 #include "iwl-trans.h" /* for IWL_MAX_TID_COUNT */
15 #include "fw-api.h" /* IWL_MVM_STATION_COUNT_MAX */
16 #include "rs.h"
17
18 struct iwl_mvm;
19 struct iwl_mvm_vif;
20
21 /**
22 * DOC: DQA - Dynamic Queue Allocation -introduction
23 *
24 * Dynamic Queue Allocation (AKA "DQA") is a feature implemented in iwlwifi
25 * driver to allow dynamic allocation of queues on-demand, rather than allocate
26 * them statically ahead of time. Ideally, we would like to allocate one queue
27 * per RA/TID, thus allowing an AP - for example - to send BE traffic to STA2
28 * even if it also needs to send traffic to a sleeping STA1, without being
29 * blocked by the sleeping station.
30 *
31 * Although the queues in DQA mode are dynamically allocated, there are still
32 * some queues that are statically allocated:
33 * TXQ #0 - command queue
34 * TXQ #1 - aux frames
35 * TXQ #2 - P2P device frames
36 * TXQ #3 - P2P GO/SoftAP GCAST/BCAST frames
37 * TXQ #4 - BSS DATA frames queue
38 * TXQ #5-8 - Non-QoS and MGMT frames queue pool
39 * TXQ #9 - P2P GO/SoftAP probe responses
40 * TXQ #10-31 - DATA frames queue pool
41 * The queues are dynamically taken from either the MGMT frames queue pool or
42 * the DATA frames one. See the %iwl_mvm_dqa_txq for more information on every
43 * queue.
44 *
45 * When a frame for a previously unseen RA/TID comes in, it needs to be deferred
46 * until a queue is allocated for it, and only then can be TXed. Therefore, it
47 * is placed into %iwl_mvm_tid_data.deferred_tx_frames, and a worker called
48 * %mvm->add_stream_wk later allocates the queues and TXes the deferred frames.
49 *
50 * For convenience, MGMT is considered as if it has TID=8, and go to the MGMT
51 * queues in the pool. If there is no longer a free MGMT queue to allocate, a
52 * queue will be allocated from the DATA pool instead. Since QoS NDPs can create
53 * a problem for aggregations, they too will use a MGMT queue.
54 *
55 * When adding a STA, a DATA queue is reserved for it so that it can TX from
56 * it. If no such free queue exists for reserving, the STA addition will fail.
57 *
58 * If the DATA queue pool gets exhausted, no new STA will be accepted, and if a
59 * new RA/TID comes in for an existing STA, one of the STA's queues will become
60 * shared and will serve more than the single TID (but always for the same RA!).
61 *
62 * When a RA/TID needs to become aggregated, no new queue is required to be
63 * allocated, only mark the queue as aggregated via the ADD_STA command. Note,
64 * however, that a shared queue cannot be aggregated, and only after the other
65 * TIDs become inactive and are removed - only then can the queue be
66 * reconfigured and become aggregated.
67 *
68 * When removing a station, its queues are returned to the pool for reuse. Here
69 * we also need to make sure that we are synced with the worker thread that TXes
70 * the deferred frames so we don't get into a situation where the queues are
71 * removed and then the worker puts deferred frames onto the released queues or
72 * tries to allocate new queues for a STA we don't need anymore.
73 */
74
75 /**
76 * DOC: station table - introduction
77 *
78 * The station table is a list of data structure that reprensent the stations.
79 * In STA/P2P client mode, the driver will hold one station for the AP/ GO.
80 * In GO/AP mode, the driver will have as many stations as associated clients.
81 * All these stations are reflected in the fw's station table. The driver
82 * keeps the fw's station table up to date with the ADD_STA command. Stations
83 * can be removed by the REMOVE_STA command.
84 *
85 * All the data related to a station is held in the structure %iwl_mvm_sta
86 * which is embed in the mac80211's %ieee80211_sta (in the drv_priv) area.
87 * This data includes the index of the station in the fw, per tid information
88 * (sequence numbers, Block-ack state machine, etc...). The stations are
89 * created and deleted by the %sta_state callback from %ieee80211_ops.
90 *
91 * The driver holds a map: %fw_id_to_mac_id that allows to fetch a
92 * %ieee80211_sta (and the %iwl_mvm_sta embedded into it) based on a fw
93 * station index. That way, the driver is able to get the tid related data in
94 * O(1) in time sensitive paths (Tx / Tx response / BA notification). These
95 * paths are triggered by the fw, and the driver needs to get a pointer to the
96 * %ieee80211 structure. This map helps to get that pointer quickly.
97 */
98
99 /**
100 * DOC: station table - locking
101 *
102 * As stated before, the station is created / deleted by mac80211's %sta_state
103 * callback from %ieee80211_ops which can sleep. The next paragraph explains
104 * the locking of a single stations, the next ones relates to the station
105 * table.
106 *
107 * The station holds the sequence number per tid. So this data needs to be
108 * accessed in the Tx path (which is softIRQ). It also holds the Block-Ack
109 * information (the state machine / and the logic that checks if the queues
110 * were drained), so it also needs to be accessible from the Tx response flow.
111 * In short, the station needs to be access from sleepable context as well as
112 * from tasklets, so the station itself needs a spinlock.
113 *
114 * The writers of %fw_id_to_mac_id map are serialized by the global mutex of
115 * the mvm op_mode. This is possible since %sta_state can sleep.
116 * The pointers in this map are RCU protected, hence we won't replace the
117 * station while we have Tx / Tx response / BA notification running.
118 *
119 * If a station is deleted while it still has packets in its A-MPDU queues,
120 * then the reclaim flow will notice that there is no station in the map for
121 * sta_id and it will dump the responses.
122 */
123
124 /**
125 * DOC: station table - internal stations
126 *
127 * The FW needs a few internal stations that are not reflected in
128 * mac80211, such as broadcast station in AP / GO mode, or AUX sta for
129 * scanning and P2P device (during the GO negotiation).
130 * For these kind of stations we have %iwl_mvm_int_sta struct which holds the
131 * data relevant for them from both %iwl_mvm_sta and %ieee80211_sta.
132 * Usually the data for these stations is static, so no locking is required,
133 * and no TID data as this is also not needed.
134 * One thing to note, is that these stations have an ID in the fw, but not
135 * in mac80211. In order to "reserve" them a sta_id in %fw_id_to_mac_id
136 * we fill ERR_PTR(EINVAL) in this mapping and all other dereferencing of
137 * pointers from this mapping need to check that the value is not error
138 * or NULL.
139 *
140 * Currently there is only one auxiliary station for scanning, initialized
141 * on init.
142 */
143
144 /**
145 * DOC: station table - AP Station in STA mode
146 *
147 * %iwl_mvm_vif includes the index of the AP station in the fw's STA table:
148 * %ap_sta_id. To get the point to the corresponding %ieee80211_sta,
149 * &fw_id_to_mac_id can be used. Due to the way the fw works, we must not remove
150 * the AP station from the fw before setting the MAC context as unassociated.
151 * Hence, %fw_id_to_mac_id[%ap_sta_id] will be NULLed when the AP station is
152 * removed by mac80211, but the station won't be removed in the fw until the
153 * VIF is set as unassociated. Then, %ap_sta_id will be invalidated.
154 */
155
156 /**
157 * DOC: station table - Drain vs. Flush
158 *
159 * Flush means that all the frames in the SCD queue are dumped regardless the
160 * station to which they were sent. We do that when we disassociate and before
161 * we remove the STA of the AP. The flush can be done synchronously against the
162 * fw.
163 * Drain means that the fw will drop all the frames sent to a specific station.
164 * This is useful when a client (if we are IBSS / GO or AP) disassociates.
165 */
166
167 /**
168 * DOC: station table - fw restart
169 *
170 * When the fw asserts, or we have any other issue that requires to reset the
171 * driver, we require mac80211 to reconfigure the driver. Since the private
172 * data of the stations is embed in mac80211's %ieee80211_sta, that data will
173 * not be zeroed and needs to be reinitialized manually.
174 * %IWL_MVM_STATUS_IN_HW_RESTART is set during restart and that will hint us
175 * that we must not allocate a new sta_id but reuse the previous one. This
176 * means that the stations being re-added after the reset will have the same
177 * place in the fw as before the reset. We do need to zero the %fw_id_to_mac_id
178 * map, since the stations aren't in the fw any more. Internal stations that
179 * are not added by mac80211 will be re-added in the init flow that is called
180 * after the restart: mac80211 call's %iwl_mvm_mac_start which calls to
181 * %iwl_mvm_up.
182 */
183
184 /**
185 * DOC: AP mode - PS
186 *
187 * When a station is asleep, the fw will set it as "asleep". All frames on
188 * shared queues (i.e. non-aggregation queues) to that station will be dropped
189 * by the fw (%TX_STATUS_FAIL_DEST_PS failure code).
190 *
191 * AMPDUs are in a separate queue that is stopped by the fw. We just need to
192 * let mac80211 know when there are frames in these queues so that it can
193 * properly handle trigger frames.
194 *
195 * When a trigger frame is received, mac80211 tells the driver to send frames
196 * from the AMPDU queues or sends frames to non-aggregation queues itself,
197 * depending on which ACs are delivery-enabled and what TID has frames to
198 * transmit. Note that mac80211 has all the knowledge since all the non-agg
199 * frames are buffered / filtered, and the driver tells mac80211 about agg
200 * frames). The driver needs to tell the fw to let frames out even if the
201 * station is asleep. This is done by %iwl_mvm_sta_modify_sleep_tx_count.
202 *
203 * When we receive a frame from that station with PM bit unset, the driver
204 * needs to let the fw know that this station isn't asleep any more. This is
205 * done by %iwl_mvm_sta_modify_ps_wake in response to mac80211 signaling the
206 * station's wakeup.
207 *
208 * For a GO, the Service Period might be cut short due to an absence period
209 * of the GO. In this (and all other cases) the firmware notifies us with the
210 * EOSP_NOTIFICATION, and we notify mac80211 of that. Further frames that we
211 * already sent to the device will be rejected again.
212 *
213 * See also "AP support for powersaving clients" in mac80211.h.
214 */
215
216 /**
217 * enum iwl_mvm_agg_state
218 *
219 * The state machine of the BA agreement establishment / tear down.
220 * These states relate to a specific RA / TID.
221 *
222 * @IWL_AGG_OFF: aggregation is not used
223 * @IWL_AGG_QUEUED: aggregation start work has been queued
224 * @IWL_AGG_STARTING: aggregation are starting (between start and oper)
225 * @IWL_AGG_ON: aggregation session is up
226 * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
227 * HW queue to be empty from packets for this RA /TID.
228 * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the
229 * HW queue to be empty from packets for this RA /TID.
230 */
231 enum iwl_mvm_agg_state {
232 IWL_AGG_OFF = 0,
233 IWL_AGG_QUEUED,
234 IWL_AGG_STARTING,
235 IWL_AGG_ON,
236 IWL_EMPTYING_HW_QUEUE_ADDBA,
237 IWL_EMPTYING_HW_QUEUE_DELBA,
238 };
239
240 /**
241 * struct iwl_mvm_tid_data - holds the states for each RA / TID
242 * @seq_number: the next WiFi sequence number to use
243 * @next_reclaimed: the WiFi sequence number of the next packet to be acked.
244 * This is basically (last acked packet++).
245 * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
246 * Tx response (TX_CMD), and the block ack notification (COMPRESSED_BA).
247 * @lq_color: the color of the LQ command as it appears in tx response.
248 * @amsdu_in_ampdu_allowed: true if A-MSDU in A-MPDU is allowed.
249 * @state: state of the BA agreement establishment / tear down.
250 * @txq_id: Tx queue used by the BA session / DQA
251 * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or
252 * the first packet to be sent in legacy HW queue in Tx AGG stop flow.
253 * Basically when next_reclaimed reaches ssn, we can tell mac80211 that
254 * we are ready to finish the Tx AGG stop / start flow.
255 * @tx_time: medium time consumed by this A-MPDU
256 * @tpt_meas_start: time of the throughput measurements start, is reset every HZ
257 * @tx_count_last: number of frames transmitted during the last second
258 * @tx_count: counts the number of frames transmitted since the last reset of
259 * tpt_meas_start
260 */
261 struct iwl_mvm_tid_data {
262 u16 seq_number;
263 u16 next_reclaimed;
264 /* The rest is Tx AGG related */
265 u32 rate_n_flags;
266 u8 lq_color;
267 bool amsdu_in_ampdu_allowed;
268 enum iwl_mvm_agg_state state;
269 u16 txq_id;
270 u16 ssn;
271 u16 tx_time;
272 unsigned long tpt_meas_start;
273 u32 tx_count_last;
274 u32 tx_count;
275 };
276
277 struct iwl_mvm_key_pn {
278 struct rcu_head rcu_head;
279 struct {
280 u8 pn[IWL_MAX_TID_COUNT][IEEE80211_CCMP_PN_LEN];
281 } ____cacheline_aligned_in_smp q[];
282 };
283
284 /**
285 * enum iwl_mvm_rxq_notif_type - Internal message identifier
286 *
287 * @IWL_MVM_RXQ_EMPTY: empty sync notification
288 * @IWL_MVM_RXQ_NOTIF_DEL_BA: notify RSS queues of delBA
289 * @IWL_MVM_RXQ_NSSN_SYNC: notify all the RSS queues with the new NSSN
290 */
291 enum iwl_mvm_rxq_notif_type {
292 IWL_MVM_RXQ_EMPTY,
293 IWL_MVM_RXQ_NOTIF_DEL_BA,
294 IWL_MVM_RXQ_NSSN_SYNC,
295 };
296
297 /**
298 * struct iwl_mvm_internal_rxq_notif - Internal representation of the data sent
299 * in &iwl_rxq_sync_cmd. Should be DWORD aligned.
300 * FW is agnostic to the payload, so there are no endianity requirements.
301 *
302 * @type: value from &iwl_mvm_rxq_notif_type
303 * @sync: ctrl path is waiting for all notifications to be received
304 * @cookie: internal cookie to identify old notifications
305 * @data: payload
306 */
307 struct iwl_mvm_internal_rxq_notif {
308 u16 type;
309 u16 sync;
310 u32 cookie;
311 u8 data[];
312 } __packed;
313
314 struct iwl_mvm_delba_data {
315 u32 baid;
316 } __packed;
317
318 struct iwl_mvm_nssn_sync_data {
319 u32 baid;
320 u32 nssn;
321 } __packed;
322
323 /**
324 * struct iwl_mvm_rxq_dup_data - per station per rx queue data
325 * @last_seq: last sequence per tid for duplicate packet detection
326 * @last_sub_frame: last subframe packet
327 */
328 struct iwl_mvm_rxq_dup_data {
329 __le16 last_seq[IWL_MAX_TID_COUNT + 1];
330 u8 last_sub_frame[IWL_MAX_TID_COUNT + 1];
331 } ____cacheline_aligned_in_smp;
332
333 /**
334 * struct iwl_mvm_link_sta - link specific parameters of a station
335 * @rcu_head: used for freeing the data
336 * @sta_id: the index of the station in the fw
337 * @lq_sta: holds rate scaling data, either for the case when RS is done in
338 * the driver - %rs_drv or in the FW - %rs_fw.
339 * @orig_amsdu_len: used to save the original amsdu_len when it is changed via
340 * debugfs. If it's set to 0, it means that it is it's not set via
341 * debugfs.
342 * @avg_energy: energy as reported by FW statistics notification
343 */
344 struct iwl_mvm_link_sta {
345 struct rcu_head rcu_head;
346 u32 sta_id;
347 union {
348 struct iwl_lq_sta_rs_fw rs_fw;
349 struct iwl_lq_sta rs_drv;
350 } lq_sta;
351
352 u16 orig_amsdu_len;
353
354 u8 avg_energy;
355 };
356
357 /**
358 * struct iwl_mvm_sta - representation of a station in the driver
359 * @tfd_queue_msk: the tfd queues used by the station
360 * @mac_id_n_color: the MAC context this station is linked to
361 * @tid_disable_agg: bitmap: if bit(tid) is set, the fw won't send ampdus for
362 * tid.
363 * @sta_type: station type
364 * @authorized: indicates station is authorized
365 * @sta_state: station state according to enum %ieee80211_sta_state
366 * @bt_reduced_txpower: is reduced tx power enabled for this station
367 * @next_status_eosp: the next reclaimed packet is a PS-Poll response and
368 * we need to signal the EOSP
369 * @lock: lock to protect the whole struct. Since %tid_data is access from Tx
370 * and from Tx response flow, it needs a spinlock.
371 * @tid_data: per tid data + mgmt. Look at %iwl_mvm_tid_data.
372 * @tid_to_baid: a simple map of TID to baid
373 * @vif: a vif pointer
374 * @reserved_queue: the queue reserved for this STA for DQA purposes
375 * Every STA has is given one reserved queue to allow it to operate. If no
376 * such queue can be guaranteed, the STA addition will fail.
377 * @tx_protection: reference counter for controlling the Tx protection.
378 * @tt_tx_protection: is thermal throttling enable Tx protection?
379 * @disable_tx: is tx to this STA disabled?
380 * @amsdu_enabled: bitmap of TX AMSDU allowed TIDs.
381 * In case TLC offload is not active it is either 0xFFFF or 0.
382 * @max_amsdu_len: max AMSDU length
383 * @agg_tids: bitmap of tids whose status is operational aggregated (IWL_AGG_ON)
384 * @sleeping: sta sleep transitions in power management
385 * @sleep_tx_count: the number of frames that we told the firmware to let out
386 * even when that station is asleep. This is useful in case the queue
387 * gets empty before all the frames were sent, which can happen when
388 * we are sending frames from an AMPDU queue and there was a hole in
389 * the BA window. To be used for UAPSD only.
390 * @ptk_pn: per-queue PTK PN data structures
391 * @dup_data: per queue duplicate packet detection data
392 * @deferred_traffic_tid_map: indication bitmap of deferred traffic per-TID
393 * @tx_ant: the index of the antenna to use for data tx to this station. Only
394 * used during connection establishment (e.g. for the 4 way handshake
395 * exchange).
396 * @pairwise_cipher: used to feed iwlmei upon authorization
397 * @deflink: the default link station, for non-MLO STA, all link specific data
398 * is accessed via deflink (or link[0]). For MLO, it will hold data of the
399 * first added link STA.
400 * @link: per link sta entries. For non-MLO only link[0] holds data. For MLO,
401 * link[0] points to deflink and link[link_id] is allocated when new link
402 * sta is added.
403 *
404 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
405 * in the structure for use by driver. This structure is placed in that
406 * space.
407 *
408 */
409 struct iwl_mvm_sta {
410 u32 tfd_queue_msk;
411 u32 mac_id_n_color;
412 u16 tid_disable_agg;
413 u8 sta_type;
414 enum ieee80211_sta_state sta_state;
415 bool bt_reduced_txpower;
416 bool next_status_eosp;
417 bool authorized;
418 spinlock_t lock;
419 struct iwl_mvm_tid_data tid_data[IWL_MAX_TID_COUNT + 1];
420 u8 tid_to_baid[IWL_MAX_TID_COUNT];
421 struct ieee80211_vif *vif;
422 struct iwl_mvm_key_pn __rcu *ptk_pn[4];
423 struct iwl_mvm_rxq_dup_data *dup_data;
424
425 u8 reserved_queue;
426
427 /* Temporary, until the new TLC will control the Tx protection */
428 s8 tx_protection;
429 bool tt_tx_protection;
430
431 bool disable_tx;
432 u16 amsdu_enabled;
433 u16 max_amsdu_len;
434 bool sleeping;
435 u8 agg_tids;
436 u8 sleep_tx_count;
437 u8 tx_ant;
438 u32 pairwise_cipher;
439
440 struct iwl_mvm_link_sta deflink;
441 struct iwl_mvm_link_sta __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
442 };
443
444 u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data);
445
446 static inline struct iwl_mvm_sta *
iwl_mvm_sta_from_mac80211(struct ieee80211_sta * sta)447 iwl_mvm_sta_from_mac80211(struct ieee80211_sta *sta)
448 {
449 return (void *)sta->drv_priv;
450 }
451
452 /**
453 * struct iwl_mvm_int_sta - representation of an internal station (auxiliary or
454 * broadcast)
455 * @sta_id: the index of the station in the fw (will be replaced by id_n_color)
456 * @type: station type
457 * @tfd_queue_msk: the tfd queues used by the station
458 */
459 struct iwl_mvm_int_sta {
460 u32 sta_id;
461 u8 type;
462 u32 tfd_queue_msk;
463 };
464
465 /**
466 * Send the STA info to the FW.
467 *
468 * @mvm: the iwl_mvm* to use
469 * @sta: the STA
470 * @update: this is true if the FW is being updated about a STA it already knows
471 * about. Otherwise (if this is a new STA), this should be false.
472 * @flags: if update==true, this marks what is being changed via ORs of values
473 * from enum iwl_sta_modify_flag. Otherwise, this is ignored.
474 */
475 int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
476 bool update, unsigned int flags);
477 int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, enum nl80211_iftype iftype);
478 int iwl_mvm_sta_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
479 struct ieee80211_sta *sta, int sta_id, u8 sta_type);
480 int iwl_mvm_add_sta(struct iwl_mvm *mvm,
481 struct ieee80211_vif *vif,
482 struct ieee80211_sta *sta);
483
iwl_mvm_update_sta(struct iwl_mvm * mvm,struct ieee80211_vif * vif,struct ieee80211_sta * sta)484 static inline int iwl_mvm_update_sta(struct iwl_mvm *mvm,
485 struct ieee80211_vif *vif,
486 struct ieee80211_sta *sta)
487 {
488 return iwl_mvm_sta_send_to_fw(mvm, sta, true, 0);
489 }
490
491 void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm,
492 struct ieee80211_sta *sta);
493 int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm,
494 struct iwl_mvm_sta *mvm_sta);
495 bool iwl_mvm_sta_del(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
496 struct ieee80211_sta *sta,
497 struct ieee80211_link_sta *link_sta, int *ret);
498 int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
499 struct ieee80211_vif *vif,
500 struct ieee80211_sta *sta);
501 int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm,
502 struct ieee80211_vif *vif,
503 u8 sta_id);
504 int iwl_mvm_set_sta_key(struct iwl_mvm *mvm,
505 struct ieee80211_vif *vif,
506 struct ieee80211_sta *sta,
507 struct ieee80211_key_conf *keyconf,
508 u8 key_offset);
509 int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm,
510 struct ieee80211_vif *vif,
511 struct ieee80211_sta *sta,
512 struct ieee80211_key_conf *keyconf);
513
514 void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm,
515 struct ieee80211_vif *vif,
516 struct ieee80211_key_conf *keyconf,
517 struct ieee80211_sta *sta, u32 iv32,
518 u16 *phase1key);
519
520 void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm,
521 struct iwl_rx_cmd_buffer *rxb);
522
523 /* AMPDU */
524 int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
525 int tid, u16 ssn, bool start, u16 buf_size, u16 timeout);
526 int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
527 struct ieee80211_sta *sta, u16 tid, u16 *ssn);
528 int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
529 struct ieee80211_sta *sta, u16 tid, u16 buf_size,
530 bool amsdu);
531 int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
532 struct ieee80211_sta *sta, u16 tid);
533 int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
534 struct ieee80211_sta *sta, u16 tid);
535
536 int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
537 int tid, u8 queue, bool start);
538
539 int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id);
540 int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm);
541
542 int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
543 void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm,
544 struct ieee80211_vif *vif);
545 int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
546 int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
547 int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
548 int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
549 int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
550 int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
551 int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm,
552 struct iwl_mvm_int_sta *sta,
553 u32 qmask, enum nl80211_iftype iftype,
554 u8 type);
555 void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
556 void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta);
557 int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
558 int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
559 void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm);
560
561 void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
562 struct ieee80211_sta *sta);
563 void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
564 struct ieee80211_sta *sta,
565 enum ieee80211_frame_release_type reason,
566 u16 cnt, u16 tids, bool more_data,
567 bool single_sta_queue);
568 int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
569 bool drain);
570 void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm,
571 struct iwl_mvm_sta *mvmsta, bool disable);
572 void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm,
573 struct ieee80211_sta *sta,
574 bool disable);
575 void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm,
576 struct iwl_mvm_vif *mvmvif,
577 bool disable);
578
579 void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
580 void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk);
581 int iwl_mvm_add_pasn_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
582 struct iwl_mvm_int_sta *sta, u8 *addr, u32 cipher,
583 u8 *key, u32 key_len);
584 void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm,
585 struct ieee80211_vif *vif,
586 u32 id);
587 /* Queues */
588 int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm,
589 struct ieee80211_sta *sta,
590 u8 sta_id, u8 tid, unsigned int timeout);
591
592 /* Sta state */
593 /**
594 * struct iwl_mvm_sta_state_ops - callbacks for the sta_state() ops
595 *
596 * Since the only difference between both MLD and
597 * non-MLD versions of sta_state() is these function calls,
598 * each version will send its specific function calls to
599 * %iwl_mvm_mac_sta_state_common().
600 *
601 * @add_sta: pointer to the function that adds a new sta
602 * @update_sta: pointer to the function that updates a sta
603 * @rm_sta: pointer to the functions that removes a sta
604 * @mac_ctxt_changed: pointer to the function that handles a change in mac ctxt
605 */
606 struct iwl_mvm_sta_state_ops {
607 int (*add_sta)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
608 struct ieee80211_sta *sta);
609 int (*update_sta)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
610 struct ieee80211_sta *sta);
611 int (*rm_sta)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
612 struct ieee80211_sta *sta);
613 int (*mac_ctxt_changed)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
614 bool force_assoc_off);
615 };
616
617 int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
618 struct ieee80211_vif *vif,
619 struct ieee80211_sta *sta,
620 enum ieee80211_sta_state old_state,
621 enum ieee80211_sta_state new_state,
622 const struct iwl_mvm_sta_state_ops *callbacks);
623
624 /* New MLD STA related APIs */
625 /* STA */
626 int iwl_mvm_mld_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
627 struct ieee80211_bss_conf *link_conf);
628 int iwl_mvm_mld_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
629 struct ieee80211_bss_conf *link_conf);
630 int iwl_mvm_mld_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
631 struct ieee80211_bss_conf *link_conf);
632 int iwl_mvm_mld_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id);
633 int iwl_mvm_mld_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
634 struct ieee80211_bss_conf *link_conf);
635 int iwl_mvm_mld_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
636 int iwl_mvm_mld_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
637 struct ieee80211_bss_conf *link_conf);
638 int iwl_mvm_mld_rm_aux_sta(struct iwl_mvm *mvm);
639 int iwl_mvm_mld_add_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
640 struct ieee80211_sta *sta);
641 int iwl_mvm_mld_update_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
642 struct ieee80211_sta *sta);
643 int iwl_mvm_mld_rm_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
644 struct ieee80211_sta *sta);
645 int iwl_mvm_mld_rm_sta_id(struct iwl_mvm *mvm, u8 sta_id);
646 int iwl_mvm_mld_update_sta_links(struct iwl_mvm *mvm,
647 struct ieee80211_vif *vif,
648 struct ieee80211_sta *sta,
649 u16 old_links, u16 new_links);
650 u32 iwl_mvm_sta_fw_id_mask(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
651 int filter_link_id);
652 int iwl_mvm_mld_add_int_sta_with_queue(struct iwl_mvm *mvm,
653 struct iwl_mvm_int_sta *sta,
654 const u8 *addr, int link_id,
655 u16 *queue, u8 tid,
656 unsigned int *_wdg_timeout);
657
658 /* Queues */
659 void iwl_mvm_mld_modify_all_sta_disable_tx(struct iwl_mvm *mvm,
660 struct iwl_mvm_vif *mvmvif,
661 bool disable);
662 void iwl_mvm_mld_sta_modify_disable_tx(struct iwl_mvm *mvm,
663 struct iwl_mvm_sta *mvm_sta,
664 bool disable);
665 void iwl_mvm_mld_sta_modify_disable_tx_ap(struct iwl_mvm *mvm,
666 struct ieee80211_sta *sta,
667 bool disable);
668 #endif /* __sta_h__ */
669