linux/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
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   3 * This file is provided under a dual BSD/GPLv2 license.  When using or
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   6 * GPL LICENSE SUMMARY
   7 *
   8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
   9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  10 * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
  11 *
  12 * This program is free software; you can redistribute it and/or modify
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  24 * USA
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  28 *
  29 * Contact Information:
  30 *  Intel Linux Wireless <linuxwifi@intel.com>
  31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32 *
  33 * BSD LICENSE
  34 *
  35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  36 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  37 * Copyright(c) 2015 - 2016 Intel Deutschland GmbH
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  66 *****************************************************************************/
  67
  68#ifndef __sta_h__
  69#define __sta_h__
  70
  71#include <linux/spinlock.h>
  72#include <net/mac80211.h>
  73#include <linux/wait.h>
  74
  75#include "iwl-trans.h" /* for IWL_MAX_TID_COUNT */
  76#include "fw-api.h" /* IWL_MVM_STATION_COUNT */
  77#include "rs.h"
  78
  79struct iwl_mvm;
  80struct iwl_mvm_vif;
  81
  82/**
  83 * DOC: DQA - Dynamic Queue Allocation -introduction
  84 *
  85 * Dynamic Queue Allocation (AKA "DQA") is a feature implemented in iwlwifi
  86 * driver to allow dynamic allocation of queues on-demand, rather than allocate
  87 * them statically ahead of time. Ideally, we would like to allocate one queue
  88 * per RA/TID, thus allowing an AP - for example - to send BE traffic to STA2
  89 * even if it also needs to send traffic to a sleeping STA1, without being
  90 * blocked by the sleeping station.
  91 *
  92 * Although the queues in DQA mode are dynamically allocated, there are still
  93 * some queues that are statically allocated:
  94 *      TXQ #0 - command queue
  95 *      TXQ #1 - aux frames
  96 *      TXQ #2 - P2P device frames
  97 *      TXQ #3 - P2P GO/SoftAP GCAST/BCAST frames
  98 *      TXQ #4 - BSS DATA frames queue
  99 *      TXQ #5-8 - Non-QoS and MGMT frames queue pool
 100 *      TXQ #9 - P2P GO/SoftAP probe responses
 101 *      TXQ #10-31 - DATA frames queue pool
 102 * The queues are dynamically taken from either the MGMT frames queue pool or
 103 * the DATA frames one. See the %iwl_mvm_dqa_txq for more information on every
 104 * queue.
 105 *
 106 * When a frame for a previously unseen RA/TID comes in, it needs to be deferred
 107 * until a queue is allocated for it, and only then can be TXed. Therefore, it
 108 * is placed into %iwl_mvm_tid_data.deferred_tx_frames, and a worker called
 109 * %mvm->add_stream_wk later allocates the queues and TXes the deferred frames.
 110 *
 111 * For convenience, MGMT is considered as if it has TID=8, and go to the MGMT
 112 * queues in the pool. If there is no longer a free MGMT queue to allocate, a
 113 * queue will be allocated from the DATA pool instead. Since QoS NDPs can create
 114 * a problem for aggregations, they too will use a MGMT queue.
 115 *
 116 * When adding a STA, a DATA queue is reserved for it so that it can TX from
 117 * it. If no such free queue exists for reserving, the STA addition will fail.
 118 *
 119 * If the DATA queue pool gets exhausted, no new STA will be accepted, and if a
 120 * new RA/TID comes in for an existing STA, one of the STA's queues will become
 121 * shared and will serve more than the single TID (but always for the same RA!).
 122 *
 123 * When a RA/TID needs to become aggregated, no new queue is required to be
 124 * allocated, only mark the queue as aggregated via the ADD_STA command. Note,
 125 * however, that a shared queue cannot be aggregated, and only after the other
 126 * TIDs become inactive and are removed - only then can the queue be
 127 * reconfigured and become aggregated.
 128 *
 129 * When removing a station, its queues are returned to the pool for reuse. Here
 130 * we also need to make sure that we are synced with the worker thread that TXes
 131 * the deferred frames so we don't get into a situation where the queues are
 132 * removed and then the worker puts deferred frames onto the released queues or
 133 * tries to allocate new queues for a STA we don't need anymore.
 134 */
 135
 136/**
 137 * DOC: station table - introduction
 138 *
 139 * The station table is a list of data structure that reprensent the stations.
 140 * In STA/P2P client mode, the driver will hold one station for the AP/ GO.
 141 * In GO/AP mode, the driver will have as many stations as associated clients.
 142 * All these stations are reflected in the fw's station table. The driver
 143 * keeps the fw's station table up to date with the ADD_STA command. Stations
 144 * can be removed by the REMOVE_STA command.
 145 *
 146 * All the data related to a station is held in the structure %iwl_mvm_sta
 147 * which is embed in the mac80211's %ieee80211_sta (in the drv_priv) area.
 148 * This data includes the index of the station in the fw, per tid information
 149 * (sequence numbers, Block-ack state machine, etc...). The stations are
 150 * created and deleted by the %sta_state callback from %ieee80211_ops.
 151 *
 152 * The driver holds a map: %fw_id_to_mac_id that allows to fetch a
 153 * %ieee80211_sta (and the %iwl_mvm_sta embedded into it) based on a fw
 154 * station index. That way, the driver is able to get the tid related data in
 155 * O(1) in time sensitive paths (Tx / Tx response / BA notification). These
 156 * paths are triggered by the fw, and the driver needs to get a pointer to the
 157 * %ieee80211 structure. This map helps to get that pointer quickly.
 158 */
 159
 160/**
 161 * DOC: station table - locking
 162 *
 163 * As stated before, the station is created / deleted by mac80211's %sta_state
 164 * callback from %ieee80211_ops which can sleep. The next paragraph explains
 165 * the locking of a single stations, the next ones relates to the station
 166 * table.
 167 *
 168 * The station holds the sequence number per tid. So this data needs to be
 169 * accessed in the Tx path (which is softIRQ). It also holds the Block-Ack
 170 * information (the state machine / and the logic that checks if the queues
 171 * were drained), so it also needs to be accessible from the Tx response flow.
 172 * In short, the station needs to be access from sleepable context as well as
 173 * from tasklets, so the station itself needs a spinlock.
 174 *
 175 * The writers of %fw_id_to_mac_id map are serialized by the global mutex of
 176 * the mvm op_mode. This is possible since %sta_state can sleep.
 177 * The pointers in this map are RCU protected, hence we won't replace the
 178 * station while we have Tx / Tx response / BA notification running.
 179 *
 180 * If a station is deleted while it still has packets in its A-MPDU queues,
 181 * then the reclaim flow will notice that there is no station in the map for
 182 * sta_id and it will dump the responses.
 183 */
 184
 185/**
 186 * DOC: station table - internal stations
 187 *
 188 * The FW needs a few internal stations that are not reflected in
 189 * mac80211, such as broadcast station in AP / GO mode, or AUX sta for
 190 * scanning and P2P device (during the GO negotiation).
 191 * For these kind of stations we have %iwl_mvm_int_sta struct which holds the
 192 * data relevant for them from both %iwl_mvm_sta and %ieee80211_sta.
 193 * Usually the data for these stations is static, so no locking is required,
 194 * and no TID data as this is also not needed.
 195 * One thing to note, is that these stations have an ID in the fw, but not
 196 * in mac80211. In order to "reserve" them a sta_id in %fw_id_to_mac_id
 197 * we fill ERR_PTR(EINVAL) in this mapping and all other dereferencing of
 198 * pointers from this mapping need to check that the value is not error
 199 * or NULL.
 200 *
 201 * Currently there is only one auxiliary station for scanning, initialized
 202 * on init.
 203 */
 204
 205/**
 206 * DOC: station table - AP Station in STA mode
 207 *
 208 * %iwl_mvm_vif includes the index of the AP station in the fw's STA table:
 209 * %ap_sta_id. To get the point to the corresponding %ieee80211_sta,
 210 * &fw_id_to_mac_id can be used. Due to the way the fw works, we must not remove
 211 * the AP station from the fw before setting the MAC context as unassociated.
 212 * Hence, %fw_id_to_mac_id[%ap_sta_id] will be NULLed when the AP station is
 213 * removed by mac80211, but the station won't be removed in the fw until the
 214 * VIF is set as unassociated. Then, %ap_sta_id will be invalidated.
 215 */
 216
 217/**
 218 * DOC: station table - Drain vs. Flush
 219 *
 220 * Flush means that all the frames in the SCD queue are dumped regardless the
 221 * station to which they were sent. We do that when we disassociate and before
 222 * we remove the STA of the AP. The flush can be done synchronously against the
 223 * fw.
 224 * Drain means that the fw will drop all the frames sent to a specific station.
 225 * This is useful when a client (if we are IBSS / GO or AP) disassociates.
 226 */
 227
 228/**
 229 * DOC: station table - fw restart
 230 *
 231 * When the fw asserts, or we have any other issue that requires to reset the
 232 * driver, we require mac80211 to reconfigure the driver. Since the private
 233 * data of the stations is embed in mac80211's %ieee80211_sta, that data will
 234 * not be zeroed and needs to be reinitialized manually.
 235 * %IWL_MVM_STATUS_IN_HW_RESTART is set during restart and that will hint us
 236 * that we must not allocate a new sta_id but reuse the previous one. This
 237 * means that the stations being re-added after the reset will have the same
 238 * place in the fw as before the reset. We do need to zero the %fw_id_to_mac_id
 239 * map, since the stations aren't in the fw any more. Internal stations that
 240 * are not added by mac80211 will be re-added in the init flow that is called
 241 * after the restart: mac80211 call's %iwl_mvm_mac_start which calls to
 242 * %iwl_mvm_up.
 243 */
 244
 245/**
 246 * DOC: AP mode - PS
 247 *
 248 * When a station is asleep, the fw will set it as "asleep". All frames on
 249 * shared queues (i.e. non-aggregation queues) to that station will be dropped
 250 * by the fw (%TX_STATUS_FAIL_DEST_PS failure code).
 251 *
 252 * AMPDUs are in a separate queue that is stopped by the fw. We just need to
 253 * let mac80211 know when there are frames in these queues so that it can
 254 * properly handle trigger frames.
 255 *
 256 * When a trigger frame is received, mac80211 tells the driver to send frames
 257 * from the AMPDU queues or sends frames to non-aggregation queues itself,
 258 * depending on which ACs are delivery-enabled and what TID has frames to
 259 * transmit. Note that mac80211 has all the knowledge since all the non-agg
 260 * frames are buffered / filtered, and the driver tells mac80211 about agg
 261 * frames). The driver needs to tell the fw to let frames out even if the
 262 * station is asleep. This is done by %iwl_mvm_sta_modify_sleep_tx_count.
 263 *
 264 * When we receive a frame from that station with PM bit unset, the driver
 265 * needs to let the fw know that this station isn't asleep any more. This is
 266 * done by %iwl_mvm_sta_modify_ps_wake in response to mac80211 signaling the
 267 * station's wakeup.
 268 *
 269 * For a GO, the Service Period might be cut short due to an absence period
 270 * of the GO. In this (and all other cases) the firmware notifies us with the
 271 * EOSP_NOTIFICATION, and we notify mac80211 of that. Further frames that we
 272 * already sent to the device will be rejected again.
 273 *
 274 * See also "AP support for powersaving clients" in mac80211.h.
 275 */
 276
 277/**
 278 * enum iwl_mvm_agg_state
 279 *
 280 * The state machine of the BA agreement establishment / tear down.
 281 * These states relate to a specific RA / TID.
 282 *
 283 * @IWL_AGG_OFF: aggregation is not used
 284 * @IWL_AGG_QUEUED: aggregation start work has been queued
 285 * @IWL_AGG_STARTING: aggregation are starting (between start and oper)
 286 * @IWL_AGG_ON: aggregation session is up
 287 * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
 288 *      HW queue to be empty from packets for this RA /TID.
 289 * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the
 290 *      HW queue to be empty from packets for this RA /TID.
 291 */
 292enum iwl_mvm_agg_state {
 293        IWL_AGG_OFF = 0,
 294        IWL_AGG_QUEUED,
 295        IWL_AGG_STARTING,
 296        IWL_AGG_ON,
 297        IWL_EMPTYING_HW_QUEUE_ADDBA,
 298        IWL_EMPTYING_HW_QUEUE_DELBA,
 299};
 300
 301/**
 302 * struct iwl_mvm_tid_data - holds the states for each RA / TID
 303 * @deferred_tx_frames: deferred TX frames for this RA/TID
 304 * @seq_number: the next WiFi sequence number to use
 305 * @next_reclaimed: the WiFi sequence number of the next packet to be acked.
 306 *      This is basically (last acked packet++).
 307 * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the
 308 *      Tx response (TX_CMD), and the block ack notification (COMPRESSED_BA).
 309 * @lq_color: the color of the LQ command as it appears in tx response.
 310 * @amsdu_in_ampdu_allowed: true if A-MSDU in A-MPDU is allowed.
 311 * @state: state of the BA agreement establishment / tear down.
 312 * @txq_id: Tx queue used by the BA session / DQA
 313 * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or
 314 *      the first packet to be sent in legacy HW queue in Tx AGG stop flow.
 315 *      Basically when next_reclaimed reaches ssn, we can tell mac80211 that
 316 *      we are ready to finish the Tx AGG stop / start flow.
 317 * @tx_time: medium time consumed by this A-MPDU
 318 * @is_tid_active: has this TID sent traffic in the last
 319 *      %IWL_MVM_DQA_QUEUE_TIMEOUT time period. If %txq_id is invalid, this
 320 *      field should be ignored.
 321 * @tpt_meas_start: time of the throughput measurements start, is reset every HZ
 322 * @tx_count_last: number of frames transmitted during the last second
 323 * @tx_count: counts the number of frames transmitted since the last reset of
 324 *       tpt_meas_start
 325 */
 326struct iwl_mvm_tid_data {
 327        struct sk_buff_head deferred_tx_frames;
 328        u16 seq_number;
 329        u16 next_reclaimed;
 330        /* The rest is Tx AGG related */
 331        u32 rate_n_flags;
 332        u8 lq_color;
 333        bool amsdu_in_ampdu_allowed;
 334        enum iwl_mvm_agg_state state;
 335        u16 txq_id;
 336        u16 ssn;
 337        u16 tx_time;
 338        bool is_tid_active;
 339        unsigned long tpt_meas_start;
 340        u32 tx_count_last;
 341        u32 tx_count;
 342};
 343
 344struct iwl_mvm_key_pn {
 345        struct rcu_head rcu_head;
 346        struct {
 347                u8 pn[IWL_MAX_TID_COUNT][IEEE80211_CCMP_PN_LEN];
 348        } ____cacheline_aligned_in_smp q[];
 349};
 350
 351struct iwl_mvm_delba_data {
 352        u32 baid;
 353} __packed;
 354
 355struct iwl_mvm_delba_notif {
 356        struct iwl_mvm_internal_rxq_notif metadata;
 357        struct iwl_mvm_delba_data delba;
 358} __packed;
 359
 360/**
 361 * struct iwl_mvm_rxq_dup_data - per station per rx queue data
 362 * @last_seq: last sequence per tid for duplicate packet detection
 363 * @last_sub_frame: last subframe packet
 364 */
 365struct iwl_mvm_rxq_dup_data {
 366        __le16 last_seq[IWL_MAX_TID_COUNT + 1];
 367        u8 last_sub_frame[IWL_MAX_TID_COUNT + 1];
 368} ____cacheline_aligned_in_smp;
 369
 370/**
 371 * struct iwl_mvm_sta - representation of a station in the driver
 372 * @sta_id: the index of the station in the fw (will be replaced by id_n_color)
 373 * @tfd_queue_msk: the tfd queues used by the station
 374 * @mac_id_n_color: the MAC context this station is linked to
 375 * @tid_disable_agg: bitmap: if bit(tid) is set, the fw won't send ampdus for
 376 *      tid.
 377 * @max_agg_bufsize: the maximal size of the AGG buffer for this station
 378 * @sta_type: station type
 379 * @bt_reduced_txpower: is reduced tx power enabled for this station
 380 * @next_status_eosp: the next reclaimed packet is a PS-Poll response and
 381 *      we need to signal the EOSP
 382 * @lock: lock to protect the whole struct. Since %tid_data is access from Tx
 383 * and from Tx response flow, it needs a spinlock.
 384 * @tid_data: per tid data + mgmt. Look at %iwl_mvm_tid_data.
 385 * @tid_to_baid: a simple map of TID to baid
 386 * @lq_sta: holds rate scaling data, either for the case when RS is done in
 387 *      the driver - %rs_drv or in the FW - %rs_fw.
 388 * @reserved_queue: the queue reserved for this STA for DQA purposes
 389 *      Every STA has is given one reserved queue to allow it to operate. If no
 390 *      such queue can be guaranteed, the STA addition will fail.
 391 * @tx_protection: reference counter for controlling the Tx protection.
 392 * @tt_tx_protection: is thermal throttling enable Tx protection?
 393 * @disable_tx: is tx to this STA disabled?
 394 * @tlc_amsdu: true if A-MSDU is allowed
 395 * @agg_tids: bitmap of tids whose status is operational aggregated (IWL_AGG_ON)
 396 * @sleep_tx_count: the number of frames that we told the firmware to let out
 397 *      even when that station is asleep. This is useful in case the queue
 398 *      gets empty before all the frames were sent, which can happen when
 399 *      we are sending frames from an AMPDU queue and there was a hole in
 400 *      the BA window. To be used for UAPSD only.
 401 * @ptk_pn: per-queue PTK PN data structures
 402 * @dup_data: per queue duplicate packet detection data
 403 * @deferred_traffic_tid_map: indication bitmap of deferred traffic per-TID
 404 *
 405 * When mac80211 creates a station it reserves some space (hw->sta_data_size)
 406 * in the structure for use by driver. This structure is placed in that
 407 * space.
 408 *
 409 */
 410struct iwl_mvm_sta {
 411        u32 sta_id;
 412        u32 tfd_queue_msk;
 413        u32 mac_id_n_color;
 414        u16 tid_disable_agg;
 415        u8 max_agg_bufsize;
 416        enum iwl_sta_type sta_type;
 417        bool bt_reduced_txpower;
 418        bool next_status_eosp;
 419        spinlock_t lock;
 420        struct iwl_mvm_tid_data tid_data[IWL_MAX_TID_COUNT + 1];
 421        u8 tid_to_baid[IWL_MAX_TID_COUNT];
 422        union {
 423                struct iwl_lq_sta_rs_fw rs_fw;
 424                struct iwl_lq_sta rs_drv;
 425        } lq_sta;
 426        struct ieee80211_vif *vif;
 427        struct iwl_mvm_key_pn __rcu *ptk_pn[4];
 428        struct iwl_mvm_rxq_dup_data *dup_data;
 429
 430        u16 deferred_traffic_tid_map;
 431
 432        u8 reserved_queue;
 433
 434        /* Temporary, until the new TLC will control the Tx protection */
 435        s8 tx_protection;
 436        bool tt_tx_protection;
 437
 438        bool disable_tx;
 439        bool tlc_amsdu;
 440        bool sleeping;
 441        bool associated;
 442        u8 agg_tids;
 443        u8 sleep_tx_count;
 444        u8 avg_energy;
 445};
 446
 447u16 iwl_mvm_tid_queued(struct iwl_mvm *mvm, struct iwl_mvm_tid_data *tid_data);
 448
 449static inline struct iwl_mvm_sta *
 450iwl_mvm_sta_from_mac80211(struct ieee80211_sta *sta)
 451{
 452        return (void *)sta->drv_priv;
 453}
 454
 455/**
 456 * struct iwl_mvm_int_sta - representation of an internal station (auxiliary or
 457 * broadcast)
 458 * @sta_id: the index of the station in the fw (will be replaced by id_n_color)
 459 * @type: station type
 460 * @tfd_queue_msk: the tfd queues used by the station
 461 */
 462struct iwl_mvm_int_sta {
 463        u32 sta_id;
 464        enum iwl_sta_type type;
 465        u32 tfd_queue_msk;
 466};
 467
 468/**
 469 * Send the STA info to the FW.
 470 *
 471 * @mvm: the iwl_mvm* to use
 472 * @sta: the STA
 473 * @update: this is true if the FW is being updated about a STA it already knows
 474 *      about. Otherwise (if this is a new STA), this should be false.
 475 * @flags: if update==true, this marks what is being changed via ORs of values
 476 *      from enum iwl_sta_modify_flag. Otherwise, this is ignored.
 477 */
 478int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 479                           bool update, unsigned int flags);
 480int iwl_mvm_add_sta(struct iwl_mvm *mvm,
 481                    struct ieee80211_vif *vif,
 482                    struct ieee80211_sta *sta);
 483
 484static 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
 491int iwl_mvm_wait_sta_queues_empty(struct iwl_mvm *mvm,
 492                                  struct iwl_mvm_sta *mvm_sta);
 493int iwl_mvm_rm_sta(struct iwl_mvm *mvm,
 494                   struct ieee80211_vif *vif,
 495                   struct ieee80211_sta *sta);
 496int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm,
 497                      struct ieee80211_vif *vif,
 498                      u8 sta_id);
 499int iwl_mvm_set_sta_key(struct iwl_mvm *mvm,
 500                        struct ieee80211_vif *vif,
 501                        struct ieee80211_sta *sta,
 502                        struct ieee80211_key_conf *keyconf,
 503                        u8 key_offset);
 504int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm,
 505                           struct ieee80211_vif *vif,
 506                           struct ieee80211_sta *sta,
 507                           struct ieee80211_key_conf *keyconf);
 508
 509void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm,
 510                             struct ieee80211_vif *vif,
 511                             struct ieee80211_key_conf *keyconf,
 512                             struct ieee80211_sta *sta, u32 iv32,
 513                             u16 *phase1key);
 514
 515void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm,
 516                           struct iwl_rx_cmd_buffer *rxb);
 517
 518/* AMPDU */
 519int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 520                       int tid, u16 ssn, bool start, u8 buf_size, u16 timeout);
 521int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 522                        struct ieee80211_sta *sta, u16 tid, u16 *ssn);
 523int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 524                            struct ieee80211_sta *sta, u16 tid, u8 buf_size,
 525                            bool amsdu);
 526int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 527                            struct ieee80211_sta *sta, u16 tid);
 528int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 529                            struct ieee80211_sta *sta, u16 tid);
 530
 531int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 532                       int tid, u8 queue, bool start);
 533
 534int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm);
 535void iwl_mvm_del_aux_sta(struct iwl_mvm *mvm);
 536
 537int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 538int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 539int iwl_mvm_add_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 540int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 541int iwl_mvm_rm_p2p_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 542int iwl_mvm_add_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 543int iwl_mvm_rm_mcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 544int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm,
 545                             struct iwl_mvm_int_sta *sta,
 546                                    u32 qmask, enum nl80211_iftype iftype,
 547                                    enum iwl_sta_type type);
 548void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 549void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta);
 550int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 551int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 552void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm);
 553
 554void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
 555                                struct ieee80211_sta *sta);
 556void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
 557                                       struct ieee80211_sta *sta,
 558                                       enum ieee80211_frame_release_type reason,
 559                                       u16 cnt, u16 tids, bool more_data,
 560                                       bool single_sta_queue);
 561int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
 562                      bool drain);
 563void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm,
 564                                   struct iwl_mvm_sta *mvmsta, bool disable);
 565void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm,
 566                                      struct ieee80211_sta *sta,
 567                                      bool disable);
 568void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm,
 569                                       struct iwl_mvm_vif *mvmvif,
 570                                       bool disable);
 571void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 572void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk);
 573
 574int iwl_mvm_scd_queue_redirect(struct iwl_mvm *mvm, int queue, int tid,
 575                               int ac, int ssn, unsigned int wdg_timeout,
 576                               bool force);
 577
 578#endif /* __sta_h__ */
 579