1 /****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 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 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * You should have received a copy of the GNU General Public License 22 * along with this program; if not, write to the Free Software 23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 24 * USA 25 * 26 * The full GNU General Public License is included in this distribution 27 * in the file called COPYING. 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 38 * All rights reserved. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 44 * * Redistributions of source code must retain the above copyright 45 * notice, this list of conditions and the following disclaimer. 46 * * Redistributions in binary form must reproduce the above copyright 47 * notice, this list of conditions and the following disclaimer in 48 * the documentation and/or other materials provided with the 49 * distribution. 50 * * Neither the name Intel Corporation nor the names of its 51 * contributors may be used to endorse or promote products derived 52 * from this software without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 65 * 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 79 struct iwl_mvm; 80 struct 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. In 226 * that case, we need to drain all the frames for that client from the AC queues 227 * that are shared with the other clients. Only then, we can remove the STA in 228 * the fw. In order to do so, we track the non-AMPDU packets for each station. 229 * If mac80211 removes a STA and if it still has non-AMPDU packets pending in 230 * the queues, we mark this station as %EBUSY in %fw_id_to_mac_id, and drop all 231 * the frames for this STA (%iwl_mvm_rm_sta). When the last frame is dropped 232 * (we know about it with its Tx response), we remove the station in fw and set 233 * it as %NULL in %fw_id_to_mac_id: this is the purpose of 234 * %iwl_mvm_sta_drained_wk. 235 */ 236 237 /** 238 * DOC: station table - fw restart 239 * 240 * When the fw asserts, or we have any other issue that requires to reset the 241 * driver, we require mac80211 to reconfigure the driver. Since the private 242 * data of the stations is embed in mac80211's %ieee80211_sta, that data will 243 * not be zeroed and needs to be reinitialized manually. 244 * %IWL_MVM_STATUS_IN_HW_RESTART is set during restart and that will hint us 245 * that we must not allocate a new sta_id but reuse the previous one. This 246 * means that the stations being re-added after the reset will have the same 247 * place in the fw as before the reset. We do need to zero the %fw_id_to_mac_id 248 * map, since the stations aren't in the fw any more. Internal stations that 249 * are not added by mac80211 will be re-added in the init flow that is called 250 * after the restart: mac80211 call's %iwl_mvm_mac_start which calls to 251 * %iwl_mvm_up. 252 */ 253 254 /** 255 * DOC: AP mode - PS 256 * 257 * When a station is asleep, the fw will set it as "asleep". All frames on 258 * shared queues (i.e. non-aggregation queues) to that station will be dropped 259 * by the fw (%TX_STATUS_FAIL_DEST_PS failure code). 260 * 261 * AMPDUs are in a separate queue that is stopped by the fw. We just need to 262 * let mac80211 know when there are frames in these queues so that it can 263 * properly handle trigger frames. 264 * 265 * When a trigger frame is received, mac80211 tells the driver to send frames 266 * from the AMPDU queues or sends frames to non-aggregation queues itself, 267 * depending on which ACs are delivery-enabled and what TID has frames to 268 * transmit. Note that mac80211 has all the knowledge since all the non-agg 269 * frames are buffered / filtered, and the driver tells mac80211 about agg 270 * frames). The driver needs to tell the fw to let frames out even if the 271 * station is asleep. This is done by %iwl_mvm_sta_modify_sleep_tx_count. 272 * 273 * When we receive a frame from that station with PM bit unset, the driver 274 * needs to let the fw know that this station isn't asleep any more. This is 275 * done by %iwl_mvm_sta_modify_ps_wake in response to mac80211 signaling the 276 * station's wakeup. 277 * 278 * For a GO, the Service Period might be cut short due to an absence period 279 * of the GO. In this (and all other cases) the firmware notifies us with the 280 * EOSP_NOTIFICATION, and we notify mac80211 of that. Further frames that we 281 * already sent to the device will be rejected again. 282 * 283 * See also "AP support for powersaving clients" in mac80211.h. 284 */ 285 286 /** 287 * enum iwl_mvm_agg_state 288 * 289 * The state machine of the BA agreement establishment / tear down. 290 * These states relate to a specific RA / TID. 291 * 292 * @IWL_AGG_OFF: aggregation is not used 293 * @IWL_AGG_STARTING: aggregation are starting (between start and oper) 294 * @IWL_AGG_ON: aggregation session is up 295 * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the 296 * HW queue to be empty from packets for this RA /TID. 297 * @IWL_EMPTYING_HW_QUEUE_DELBA: tearing down a BA session - waiting for the 298 * HW queue to be empty from packets for this RA /TID. 299 */ 300 enum iwl_mvm_agg_state { 301 IWL_AGG_OFF = 0, 302 IWL_AGG_STARTING, 303 IWL_AGG_ON, 304 IWL_EMPTYING_HW_QUEUE_ADDBA, 305 IWL_EMPTYING_HW_QUEUE_DELBA, 306 }; 307 308 /** 309 * struct iwl_mvm_tid_data - holds the states for each RA / TID 310 * @deferred_tx_frames: deferred TX frames for this RA/TID 311 * @seq_number: the next WiFi sequence number to use 312 * @next_reclaimed: the WiFi sequence number of the next packet to be acked. 313 * This is basically (last acked packet++). 314 * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the 315 * Tx response (TX_CMD), and the block ack notification (COMPRESSED_BA). 316 * @amsdu_in_ampdu_allowed: true if A-MSDU in A-MPDU is allowed. 317 * @state: state of the BA agreement establishment / tear down. 318 * @txq_id: Tx queue used by the BA session / DQA 319 * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or 320 * the first packet to be sent in legacy HW queue in Tx AGG stop flow. 321 * Basically when next_reclaimed reaches ssn, we can tell mac80211 that 322 * we are ready to finish the Tx AGG stop / start flow. 323 * @tx_time: medium time consumed by this A-MPDU 324 */ 325 struct iwl_mvm_tid_data { 326 struct sk_buff_head deferred_tx_frames; 327 u16 seq_number; 328 u16 next_reclaimed; 329 /* The rest is Tx AGG related */ 330 u32 rate_n_flags; 331 bool amsdu_in_ampdu_allowed; 332 enum iwl_mvm_agg_state state; 333 u16 txq_id; 334 u16 ssn; 335 u16 tx_time; 336 }; 337 338 static inline u16 iwl_mvm_tid_queued(struct iwl_mvm_tid_data *tid_data) 339 { 340 return ieee80211_sn_sub(IEEE80211_SEQ_TO_SN(tid_data->seq_number), 341 tid_data->next_reclaimed); 342 } 343 344 struct 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 }; 350 351 struct iwl_mvm_delba_data { 352 u32 baid; 353 } __packed; 354 355 struct 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 */ 365 struct 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 * @hw_queue: per-AC mapping of the TFD queues used by station 375 * @mac_id_n_color: the MAC context this station is linked to 376 * @tid_disable_agg: bitmap: if bit(tid) is set, the fw won't send ampdus for 377 * tid. 378 * @max_agg_bufsize: the maximal size of the AGG buffer for this station 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 * @reserved_queue: the queue reserved for this STA for DQA purposes 387 * Every STA has is given one reserved queue to allow it to operate. If no 388 * such queue can be guaranteed, the STA addition will fail. 389 * @tx_protection: reference counter for controlling the Tx protection. 390 * @tt_tx_protection: is thermal throttling enable Tx protection? 391 * @disable_tx: is tx to this STA disabled? 392 * @tlc_amsdu: true if A-MSDU is allowed 393 * @agg_tids: bitmap of tids whose status is operational aggregated (IWL_AGG_ON) 394 * @sleep_tx_count: the number of frames that we told the firmware to let out 395 * even when that station is asleep. This is useful in case the queue 396 * gets empty before all the frames were sent, which can happen when 397 * we are sending frames from an AMPDU queue and there was a hole in 398 * the BA window. To be used for UAPSD only. 399 * @ptk_pn: per-queue PTK PN data structures 400 * @dup_data: per queue duplicate packet detection data 401 * @deferred_traffic_tid_map: indication bitmap of deferred traffic per-TID 402 * 403 * When mac80211 creates a station it reserves some space (hw->sta_data_size) 404 * in the structure for use by driver. This structure is placed in that 405 * space. 406 * 407 */ 408 struct iwl_mvm_sta { 409 u32 sta_id; 410 u32 tfd_queue_msk; 411 u8 hw_queue[IEEE80211_NUM_ACS]; 412 u32 mac_id_n_color; 413 u16 tid_disable_agg; 414 u8 max_agg_bufsize; 415 bool bt_reduced_txpower; 416 bool next_status_eosp; 417 spinlock_t lock; 418 struct iwl_mvm_tid_data tid_data[IWL_MAX_TID_COUNT + 1]; 419 u8 tid_to_baid[IWL_MAX_TID_COUNT]; 420 struct iwl_lq_sta lq_sta; 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 u16 deferred_traffic_tid_map; 426 427 u8 reserved_queue; 428 429 /* Temporary, until the new TLC will control the Tx protection */ 430 s8 tx_protection; 431 bool tt_tx_protection; 432 433 bool disable_tx; 434 bool tlc_amsdu; 435 u8 agg_tids; 436 u8 sleep_tx_count; 437 }; 438 439 static inline struct iwl_mvm_sta * 440 iwl_mvm_sta_from_mac80211(struct ieee80211_sta *sta) 441 { 442 return (void *)sta->drv_priv; 443 } 444 445 /** 446 * struct iwl_mvm_int_sta - representation of an internal station (auxiliary or 447 * broadcast) 448 * @sta_id: the index of the station in the fw (will be replaced by id_n_color) 449 * @tfd_queue_msk: the tfd queues used by the station 450 */ 451 struct iwl_mvm_int_sta { 452 u32 sta_id; 453 u32 tfd_queue_msk; 454 }; 455 456 /** 457 * 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 */ 466 int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 467 bool update, unsigned int flags); 468 int iwl_mvm_add_sta(struct iwl_mvm *mvm, 469 struct ieee80211_vif *vif, 470 struct ieee80211_sta *sta); 471 int iwl_mvm_update_sta(struct iwl_mvm *mvm, 472 struct ieee80211_vif *vif, 473 struct ieee80211_sta *sta); 474 int iwl_mvm_rm_sta(struct iwl_mvm *mvm, 475 struct ieee80211_vif *vif, 476 struct ieee80211_sta *sta); 477 int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, 478 struct ieee80211_vif *vif, 479 u8 sta_id); 480 int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, 481 struct ieee80211_vif *vif, 482 struct ieee80211_sta *sta, 483 struct ieee80211_key_conf *keyconf, 484 u8 key_offset); 485 int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, 486 struct ieee80211_vif *vif, 487 struct ieee80211_sta *sta, 488 struct ieee80211_key_conf *keyconf); 489 490 void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, 491 struct ieee80211_vif *vif, 492 struct ieee80211_key_conf *keyconf, 493 struct ieee80211_sta *sta, u32 iv32, 494 u16 *phase1key); 495 496 void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, 497 struct iwl_rx_cmd_buffer *rxb); 498 499 /* AMPDU */ 500 int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, 501 int tid, u16 ssn, bool start, u8 buf_size, u16 timeout); 502 int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 503 struct ieee80211_sta *sta, u16 tid, u16 *ssn); 504 int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 505 struct ieee80211_sta *sta, u16 tid, u8 buf_size, 506 bool amsdu); 507 int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 508 struct ieee80211_sta *sta, u16 tid); 509 int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 510 struct ieee80211_sta *sta, u16 tid); 511 512 int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm); 513 void iwl_mvm_del_aux_sta(struct iwl_mvm *mvm); 514 515 int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); 516 int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); 517 int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); 518 int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); 519 int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); 520 int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, 521 struct iwl_mvm_int_sta *sta, 522 u32 qmask, enum nl80211_iftype iftype); 523 void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); 524 int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); 525 int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); 526 void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm); 527 528 void iwl_mvm_sta_drained_wk(struct work_struct *wk); 529 void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, 530 struct ieee80211_sta *sta); 531 void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, 532 struct ieee80211_sta *sta, 533 enum ieee80211_frame_release_type reason, 534 u16 cnt, u16 tids, bool more_data, 535 bool agg); 536 int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, 537 bool drain); 538 void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, 539 struct iwl_mvm_sta *mvmsta, bool disable); 540 void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, 541 struct ieee80211_sta *sta, 542 bool disable); 543 void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, 544 struct iwl_mvm_vif *mvmvif, 545 bool disable); 546 void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif); 547 void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk); 548 549 #endif /* __sta_h__ */ 550