sta.h

  1/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
  2/*
  3 * Copyright (C) 2012-2014, 2018-2025 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_STATION_COUNT_MAX */
 16#include "rs.h"
 17
 18struct iwl_mvm;
 19struct 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 - aggregation session 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 */
229enum iwl_mvm_agg_state {
230	IWL_AGG_OFF = 0,
231	IWL_AGG_QUEUED,
232	IWL_AGG_STARTING,
233	IWL_AGG_ON,
234	IWL_EMPTYING_HW_QUEUE_ADDBA,
235};
236
237/**
238 * struct iwl_mvm_tid_data - holds the states for each RA / TID
239 * @seq_number: the next WiFi sequence number to use
240 * @next_reclaimed: the WiFi sequence number of the next packet to be acked.
241 *	This is basically (last acked packet++).
242 * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
243 *	Tx response (TX_CMD), and the block ack notification (COMPRESSED_BA).
244 * @lq_color: the color of the LQ command as it appears in tx response.
245 * @amsdu_in_ampdu_allowed: true if A-MSDU in A-MPDU is allowed.
246 * @state: state of the BA agreement establishment / tear down.
247 * @txq_id: Tx queue used by the BA session / DQA
248 * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or
249 *	the first packet to be sent in legacy HW queue in Tx AGG stop flow.
250 *	Basically when next_reclaimed reaches ssn, we can tell mac80211 that
251 *	we are ready to finish the Tx AGG stop / start flow.
252 * @tx_time: medium time consumed by this A-MPDU
253 * @tpt_meas_start: time of the throughput measurements start, is reset every HZ
254 * @tx_count_last: number of frames transmitted during the last second
255 * @tx_count: counts the number of frames transmitted since the last reset of
256 *	 tpt_meas_start
257 */
258struct iwl_mvm_tid_data {
259	u16 seq_number;
260	u16 next_reclaimed;
261	/* The rest is Tx AGG related */
262	__le32 rate_n_flags;
263	u8 lq_color;
264	bool amsdu_in_ampdu_allowed;
265	enum iwl_mvm_agg_state state;
266	u16 txq_id;
267	u16 ssn;
268	u16 tx_time;
269	unsigned long tpt_meas_start;
270	u32 tx_count_last;
271	u32 tx_count;
272};
273
274struct iwl_mvm_key_pn {
275	struct rcu_head rcu_head;
276	struct {
277		u8 pn[IWL_MAX_TID_COUNT][IEEE80211_CCMP_PN_LEN];
278	} ____cacheline_aligned_in_smp q[];
279};
280
281/**
282 * enum iwl_mvm_rxq_notif_type - Internal message identifier
283 *
284 * @IWL_MVM_RXQ_EMPTY: empty sync notification
285 * @IWL_MVM_RXQ_NOTIF_DEL_BA: notify RSS queues of delBA
286 */
287enum iwl_mvm_rxq_notif_type {
288	IWL_MVM_RXQ_EMPTY,
289	IWL_MVM_RXQ_NOTIF_DEL_BA,
290};
291
292/**
293 * struct iwl_mvm_internal_rxq_notif - Internal representation of the data sent
294 * in &iwl_rxq_sync_cmd. Should be DWORD aligned.
295 * FW is agnostic to the payload, so there are no endianity requirements.
296 *
297 * @type: value from &iwl_mvm_rxq_notif_type
298 * @sync: ctrl path is waiting for all notifications to be received
299 * @cookie: internal cookie to identify old notifications
300 * @data: payload
301 */
302struct iwl_mvm_internal_rxq_notif {
303	u16 type;
304	u16 sync;
305	u32 cookie;
306	u8 data[];
307} __packed;
308
309struct iwl_mvm_delba_data {
310	u32 baid;
311} __packed;
312
313/**
314 * struct iwl_mvm_rxq_dup_data - per station per rx queue data
315 * @last_seq: last sequence per tid for duplicate packet detection
316 * @last_sub_frame: last subframe packet
317 */
318struct iwl_mvm_rxq_dup_data {
319	__le16 last_seq[IWL_MAX_TID_COUNT + 1];
320	u8 last_sub_frame[IWL_MAX_TID_COUNT + 1];
321} ____cacheline_aligned_in_smp;
322
323/**
324 * struct iwl_mvm_link_sta - link specific parameters of a station
325 * @rcu_head: used for freeing the data
326 * @sta_id: the index of the station in the fw
327 * @lq_sta: holds rate scaling data, either for the case when RS is done in
328 *	the driver - %rs_drv or in the FW - %rs_fw.
329 * @orig_amsdu_len: used to save the original amsdu_len when it is changed via
330 *      debugfs.  If it's set to 0, it means that it is it's not set via
331 *      debugfs.
332 * @avg_energy: energy as reported by FW statistics notification
333 */
334struct iwl_mvm_link_sta {
335	struct rcu_head rcu_head;
336	u32 sta_id;
337	union {
338		struct iwl_lq_sta_rs_fw rs_fw;
339		struct iwl_lq_sta rs_drv;
340	} lq_sta;
341
342	u16 orig_amsdu_len;
343
344	u8 avg_energy;
345};
346
347/**
348 * struct iwl_mvm_sta - representation of a station in the driver
349 * @vif: the interface the station belongs to
350 * @tfd_queue_msk: the tfd queues used by the station
351 * @mac_id_n_color: the MAC context this station is linked to
352 * @tid_disable_agg: bitmap: if bit(tid) is set, the fw won't send ampdus for
353 *	tid.
354 * @sta_type: station type
355 * @authorized: indicates station is authorized
356 * @sta_state: station state according to enum %ieee80211_sta_state
357 * @bt_reduced_txpower: is reduced tx power enabled for this station
358 * @next_status_eosp: the next reclaimed packet is a PS-Poll response and
359 *	we need to signal the EOSP
360 * @lock: lock to protect the whole struct. Since %tid_data is access from Tx
361 * and from Tx response flow, it needs a spinlock.
362 * @tid_data: per tid data + mgmt. Look at %iwl_mvm_tid_data.
363 * @tid_to_baid: a simple map of TID to baid
364 * @vif: a vif pointer
365 * @reserved_queue: the queue reserved for this STA for DQA purposes
366 *	Every STA has is given one reserved queue to allow it to operate. If no
367 *	such queue can be guaranteed, the STA addition will fail.
368 * @tx_protection: reference counter for controlling the Tx protection.
369 * @tt_tx_protection: is thermal throttling enable Tx protection?
370 * @disable_tx: is tx to this STA disabled?
371 * @amsdu_enabled: bitmap of TX AMSDU allowed TIDs.
372 *	In case TLC offload is not active it is either 0xFFFF or 0.
373 * @max_amsdu_len: max AMSDU length
374 * @sleeping: indicates the station is sleeping (when not offloaded to FW)
375 * @agg_tids: bitmap of tids whose status is operational aggregated (IWL_AGG_ON)
376 * @sleeping: sta sleep transitions in power management
377 * @sleep_tx_count: the number of frames that we told the firmware to let out
378 *	even when that station is asleep. This is useful in case the queue
379 *	gets empty before all the frames were sent, which can happen when
380 *	we are sending frames from an AMPDU queue and there was a hole in
381 *	the BA window. To be used for UAPSD only.
382 * @ptk_pn: per-queue PTK PN data structures
383 * @dup_data: per queue duplicate packet detection data
384 * @tx_ant: the index of the antenna to use for data tx to this station. Only
385 *	used during connection establishment (e.g. for the 4 way handshake
386 *	exchange).
387 * @pairwise_cipher: used to feed iwlmei upon authorization
388 * @deflink: the default link station, for non-MLO STA, all link specific data
389 *	is accessed via deflink (or link[0]). For MLO, it will hold data of the
390 *	first added link STA.
391 * @link: per link sta entries. For non-MLO only link[0] holds data. For MLO,
392 *	link[0] points to deflink and link[link_id] is allocated when new link
393 *	sta is added.
394 *
395 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
396 * in the structure for use by driver. This structure is placed in that
397 * space.
398 *
399 */
400struct iwl_mvm_sta {
401	u32 tfd_queue_msk;
402	u32 mac_id_n_color;
403	u16 tid_disable_agg;
404	u8 sta_type;
405	enum ieee80211_sta_state sta_state;
406	bool bt_reduced_txpower;
407	bool next_status_eosp;
408	bool authorized;
409	spinlock_t lock;
410	struct iwl_mvm_tid_data tid_data[IWL_MAX_TID_COUNT + 1];
411	u8 tid_to_baid[IWL_MAX_TID_COUNT];
412	struct ieee80211_vif *vif;
413	struct iwl_mvm_key_pn __rcu *ptk_pn[4];
414	struct iwl_mvm_rxq_dup_data *dup_data;
415
416	u8 reserved_queue;
417
418	/* Temporary, until the new TLC will control the Tx protection */
419	s8 tx_protection;
420	bool tt_tx_protection;
421
422	bool disable_tx;
423	u16 amsdu_enabled;
424	u16 max_amsdu_len;
425	bool sleeping;
426	u8 agg_tids;
427	u8 sleep_tx_count;
428	u8 tx_ant;
429	u32 pairwise_cipher;
430
431	struct iwl_mvm_link_sta deflink;
432	struct iwl_mvm_link_sta __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
433};
434
435u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data);
436
437static inline struct iwl_mvm_sta *
438iwl_mvm_sta_from_mac80211(struct ieee80211_sta *sta)
439{
440	return (void *)sta->drv_priv;
441}
442
443/**
444 * struct iwl_mvm_int_sta - representation of an internal station (auxiliary or
445 * broadcast)
446 * @sta_id: the index of the station in the fw (will be replaced by id_n_color)
447 * @type: station type
448 * @tfd_queue_msk: the tfd queues used by the station
449 */
450struct iwl_mvm_int_sta {
451	u32 sta_id;
452	u8 type;
453	u32 tfd_queue_msk;
454};
455
456/**
457 * iwl_mvm_sta_send_to_fw - Send the STA info to the FW.
458 *
459 * @mvm: the iwl_mvm* to use
460 * @sta: the STA
461 * @update: this is true if the FW is being updated about a STA it already knows
462 *	about. Otherwise (if this is a new STA), this should be false.
463 * @flags: if update==true, this marks what is being changed via ORs of values
464 *	from enum iwl_sta_modify_flag. Otherwise, this is ignored.
465 * Return: negative error code or 0 on success
466 */
467int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
468			   bool update, unsigned int flags);
469int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, enum nl80211_iftype iftype);
470int iwl_mvm_sta_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
471		     struct ieee80211_sta *sta, int sta_id, u8 sta_type);
472int iwl_mvm_add_sta(struct iwl_mvm *mvm,
473		    struct ieee80211_vif *vif,
474		    struct ieee80211_sta *sta);
475
476static inline int iwl_mvm_update_sta(struct iwl_mvm *mvm,
477				     struct ieee80211_vif *vif,
478				     struct ieee80211_sta *sta)
479{
480	return iwl_mvm_sta_send_to_fw(mvm, sta, true, 0);
481}
482
483void iwl_mvm_realloc_queues_after_restart(struct iwl_mvm *mvm,
484					  struct ieee80211_sta *sta);
485int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm,
486				  struct iwl_mvm_sta *mvm_sta);
487void iwl_mvm_sta_del(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
488		     struct ieee80211_sta *sta,
489		     struct ieee80211_link_sta *link_sta);
490int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
491		   struct ieee80211_vif *vif,
492		   struct ieee80211_sta *sta);
493int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm,
494		      struct ieee80211_vif *vif,
495		      u8 sta_id);
496int iwl_mvm_set_sta_key(struct iwl_mvm *mvm,
497			struct ieee80211_vif *vif,
498			struct ieee80211_sta *sta,
499			struct ieee80211_key_conf *keyconf,
500			u8 key_offset);
501int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm,
502			   struct ieee80211_vif *vif,
503			   struct ieee80211_sta *sta,
504			   struct ieee80211_key_conf *keyconf);
505
506void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm,
507			     struct ieee80211_vif *vif,
508			     struct ieee80211_key_conf *keyconf,
509			     struct ieee80211_sta *sta, u32 iv32,
510			     u16 *phase1key);
511
512void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm,
513			   struct iwl_rx_cmd_buffer *rxb);
514
515/* AMPDU */
516int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
517		       int tid, u16 ssn, bool start, u16 buf_size, u16 timeout);
518int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
519			struct ieee80211_sta *sta, u16 tid, u16 *ssn);
520int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
521			    struct ieee80211_sta *sta, u16 tid, u16 buf_size,
522			    bool amsdu);
523int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
524			    struct ieee80211_sta *sta, u16 tid);
525int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
526			    struct ieee80211_sta *sta, u16 tid);
527
528int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
529		       int tid, u8 queue, bool start);
530
531int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id);
532int iwl_mvm_rm_aux_sta(struct iwl_mvm *mvm);
533
534int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
535void iwl_mvm_free_bcast_sta_queues(struct iwl_mvm *mvm,
536				   struct ieee80211_vif *vif);
537int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
538int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
539int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
540int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
541int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
542int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
543int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm,
544			     struct iwl_mvm_int_sta *sta,
545				    u32 qmask, enum nl80211_iftype iftype,
546				    u8 type);
547void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
548void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta);
549int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
550int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
551void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm);
552
553void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
554				struct ieee80211_sta *sta);
555void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
556				       struct ieee80211_sta *sta,
557				       enum ieee80211_frame_release_type reason,
558				       u16 cnt, u16 tids, bool more_data,
559				       bool single_sta_queue);
560int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
561		      bool drain);
562void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm,
563				   struct iwl_mvm_sta *mvmsta, bool disable);
564void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm,
565				      struct ieee80211_sta *sta,
566				      bool disable);
567void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm,
568				       struct iwl_mvm_vif *mvmvif,
569				       bool disable);
570
571void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
572int iwl_mvm_sta_ensure_queue(struct iwl_mvm *mvm, struct ieee80211_txq *txq);
573void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk);
574void iwl_mvm_cancel_channel_switch(struct iwl_mvm *mvm,
575				   struct ieee80211_vif *vif,
576				   u32 id);
577/* Queues */
578int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm,
579			    struct ieee80211_sta *sta,
580			    u8 sta_id, u8 tid, unsigned int timeout);
581
582/* Sta state */
583/**
584 * struct iwl_mvm_sta_state_ops - callbacks for the sta_state() ops
585 *
586 * Since the only difference between both MLD and
587 * non-MLD versions of sta_state() is these function calls,
588 * each version will send its specific function calls to
589 * %iwl_mvm_mac_sta_state_common().
590 *
591 * @add_sta: pointer to the function that adds a new sta
592 * @update_sta: pointer to the function that updates a sta
593 * @rm_sta: pointer to the functions that removes a sta
594 * @mac_ctxt_changed: pointer to the function that handles a change in mac ctxt
595 */
596struct iwl_mvm_sta_state_ops {
597	int (*add_sta)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
598		       struct ieee80211_sta *sta);
599	int (*update_sta)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
600			  struct ieee80211_sta *sta);
601	int (*rm_sta)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
602		      struct ieee80211_sta *sta);
603	int (*mac_ctxt_changed)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
604				bool force_assoc_off);
605};
606
607int iwl_mvm_mac_sta_state_common(struct ieee80211_hw *hw,
608				 struct ieee80211_vif *vif,
609				 struct ieee80211_sta *sta,
610				 enum ieee80211_sta_state old_state,
611				 enum ieee80211_sta_state new_state,
612				 const struct iwl_mvm_sta_state_ops *callbacks);
613
614/* New MLD STA related APIs */
615/* STA */
616int iwl_mvm_mld_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
617			      struct ieee80211_bss_conf *link_conf);
618int iwl_mvm_mld_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
619			     struct ieee80211_bss_conf *link_conf);
620int iwl_mvm_mld_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
621			      struct ieee80211_bss_conf *link_conf);
622int iwl_mvm_mld_add_aux_sta(struct iwl_mvm *mvm, u32 lmac_id);
623int iwl_mvm_mld_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
624			     struct ieee80211_bss_conf *link_conf);
625int iwl_mvm_mld_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
626int iwl_mvm_mld_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
627			     struct ieee80211_bss_conf *link_conf);
628int iwl_mvm_mld_rm_aux_sta(struct iwl_mvm *mvm);
629int iwl_mvm_mld_add_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
630			struct ieee80211_sta *sta);
631int iwl_mvm_mld_update_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
632			   struct ieee80211_sta *sta);
633int iwl_mvm_mld_rm_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
634		       struct ieee80211_sta *sta);
635void iwl_mvm_mld_free_sta_link(struct iwl_mvm *mvm,
636			       struct iwl_mvm_sta *mvm_sta,
637			       struct iwl_mvm_link_sta *mvm_sta_link,
638			       unsigned int link_id);
639int iwl_mvm_mld_rm_sta_id(struct iwl_mvm *mvm, u8 sta_id);
640int iwl_mvm_mld_update_sta_links(struct iwl_mvm *mvm,
641				 struct ieee80211_vif *vif,
642				 struct ieee80211_sta *sta,
643				 u16 old_links, u16 new_links);
644u32 iwl_mvm_sta_fw_id_mask(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
645			   int filter_link_id);
646int iwl_mvm_mld_add_int_sta_with_queue(struct iwl_mvm *mvm,
647				       struct iwl_mvm_int_sta *sta,
648				       const u8 *addr, int link_id,
649				       u16 *queue, u8 tid,
650				       unsigned int *_wdg_timeout);
651
652/* Queues */
653void iwl_mvm_mld_modify_all_sta_disable_tx(struct iwl_mvm *mvm,
654					   struct iwl_mvm_vif *mvmvif,
655					   bool disable);
656void iwl_mvm_mld_sta_modify_disable_tx(struct iwl_mvm *mvm,
657				       struct iwl_mvm_sta *mvm_sta,
658				       bool disable);
659void iwl_mvm_mld_sta_modify_disable_tx_ap(struct iwl_mvm *mvm,
660					  struct ieee80211_sta *sta,
661					  bool disable);
662#endif /* __sta_h__ */