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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 | * | |
51368bf7 | 8 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
8b4139dc | 9 | * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
24afba76 | 10 | * Copyright(c) 2015 - 2016 Intel Deutschland GmbH |
8ca151b5 JB |
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 | |
410dc5aa | 27 | * in the file called COPYING. |
8ca151b5 JB |
28 | * |
29 | * Contact Information: | |
cb2f8277 | 30 | * Intel Linux Wireless <linuxwifi@intel.com> |
8ca151b5 JB |
31 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
32 | * | |
33 | * BSD LICENSE | |
34 | * | |
51368bf7 | 35 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
8b4139dc | 36 | * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
24afba76 | 37 | * Copyright(c) 2015 - 2016 Intel Deutschland GmbH |
8ca151b5 JB |
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; | |
003e5236 | 80 | struct iwl_mvm_vif; |
8ca151b5 | 81 | |
24afba76 LK |
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 | ||
8ca151b5 JB |
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: | |
0d365ae5 | 209 | * %ap_sta_id. To get the point to the corresponding %ieee80211_sta, |
8ca151b5 JB |
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 | * | |
3e56eadf JB |
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 | * | |
8ca151b5 | 261 | * AMPDUs are in a separate queue that is stopped by the fw. We just need to |
3e56eadf | 262 | * let mac80211 know when there are frames in these queues so that it can |
8ca151b5 | 263 | * properly handle trigger frames. |
3e56eadf JB |
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 | |
0d365ae5 | 268 | * transmit. Note that mac80211 has all the knowledge since all the non-agg |
3e56eadf JB |
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 | |
0d365ae5 | 275 | * done by %iwl_mvm_sta_modify_ps_wake in response to mac80211 signaling the |
3e56eadf JB |
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. | |
8ca151b5 JB |
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 | |
24afba76 | 310 | * @deferred_tx_frames: deferred TX frames for this RA/TID |
8ca151b5 JB |
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). | |
bb81bb68 | 316 | * @amsdu_in_ampdu_allowed: true if A-MSDU in A-MPDU is allowed. |
8ca151b5 | 317 | * @state: state of the BA agreement establishment / tear down. |
24afba76 | 318 | * @txq_id: Tx queue used by the BA session / DQA |
8ca151b5 JB |
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. | |
9b5452fd | 323 | * @tx_time: medium time consumed by this A-MPDU |
8ca151b5 JB |
324 | */ |
325 | struct iwl_mvm_tid_data { | |
24afba76 | 326 | struct sk_buff_head deferred_tx_frames; |
8ca151b5 JB |
327 | u16 seq_number; |
328 | u16 next_reclaimed; | |
329 | /* The rest is Tx AGG related */ | |
330 | u32 rate_n_flags; | |
bb81bb68 | 331 | bool amsdu_in_ampdu_allowed; |
8ca151b5 JB |
332 | enum iwl_mvm_agg_state state; |
333 | u16 txq_id; | |
334 | u16 ssn; | |
9b5452fd | 335 | u16 tx_time; |
8ca151b5 JB |
336 | }; |
337 | ||
3e56eadf JB |
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 | ||
f5e28eac JB |
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 | ||
a571f5f6 SS |
351 | /** |
352 | * struct iwl_mvm_rxq_dup_data - per station per rx queue data | |
353 | * @last_seq: last sequence per tid for duplicate packet detection | |
354 | * @last_sub_frame: last subframe packet | |
355 | */ | |
356 | struct iwl_mvm_rxq_dup_data { | |
357 | __le16 last_seq[IWL_MAX_TID_COUNT + 1]; | |
358 | u8 last_sub_frame[IWL_MAX_TID_COUNT + 1]; | |
359 | } ____cacheline_aligned_in_smp; | |
360 | ||
8ca151b5 JB |
361 | /** |
362 | * struct iwl_mvm_sta - representation of a station in the driver | |
363 | * @sta_id: the index of the station in the fw (will be replaced by id_n_color) | |
364 | * @tfd_queue_msk: the tfd queues used by the station | |
a0f6bf2a | 365 | * @hw_queue: per-AC mapping of the TFD queues used by station |
8ca151b5 JB |
366 | * @mac_id_n_color: the MAC context this station is linked to |
367 | * @tid_disable_agg: bitmap: if bit(tid) is set, the fw won't send ampdus for | |
368 | * tid. | |
369 | * @max_agg_bufsize: the maximal size of the AGG buffer for this station | |
2b76ef13 | 370 | * @bt_reduced_txpower: is reduced tx power enabled for this station |
3e56eadf JB |
371 | * @next_status_eosp: the next reclaimed packet is a PS-Poll response and |
372 | * we need to signal the EOSP | |
8ca151b5 JB |
373 | * @lock: lock to protect the whole struct. Since %tid_data is access from Tx |
374 | * and from Tx response flow, it needs a spinlock. | |
24afba76 LK |
375 | * @tid_data: per tid data + mgmt. Look at %iwl_mvm_tid_data. |
376 | * @reserved_queue: the queue reserved for this STA for DQA purposes | |
377 | * Every STA has is given one reserved queue to allow it to operate. If no | |
378 | * such queue can be guaranteed, the STA addition will fail. | |
9ee718aa EL |
379 | * @tx_protection: reference counter for controlling the Tx protection. |
380 | * @tt_tx_protection: is thermal throttling enable Tx protection? | |
003e5236 | 381 | * @disable_tx: is tx to this STA disabled? |
04e3a5da | 382 | * @tlc_amsdu: true if A-MSDU is allowed |
efed6640 | 383 | * @agg_tids: bitmap of tids whose status is operational aggregated (IWL_AGG_ON) |
36be0eb6 EG |
384 | * @sleep_tx_count: the number of frames that we told the firmware to let out |
385 | * even when that station is asleep. This is useful in case the queue | |
386 | * gets empty before all the frames were sent, which can happen when | |
387 | * we are sending frames from an AMPDU queue and there was a hole in | |
388 | * the BA window. To be used for UAPSD only. | |
f5e28eac | 389 | * @ptk_pn: per-queue PTK PN data structures |
a571f5f6 | 390 | * @dup_data: per queue duplicate packet detection data |
24afba76 | 391 | * @deferred_traffic_tid_map: indication bitmap of deferred traffic per-TID |
8ca151b5 JB |
392 | * |
393 | * When mac80211 creates a station it reserves some space (hw->sta_data_size) | |
394 | * in the structure for use by driver. This structure is placed in that | |
395 | * space. | |
396 | * | |
397 | */ | |
398 | struct iwl_mvm_sta { | |
399 | u32 sta_id; | |
400 | u32 tfd_queue_msk; | |
a0f6bf2a | 401 | u8 hw_queue[IEEE80211_NUM_ACS]; |
8ca151b5 JB |
402 | u32 mac_id_n_color; |
403 | u16 tid_disable_agg; | |
404 | u8 max_agg_bufsize; | |
2b76ef13 | 405 | bool bt_reduced_txpower; |
3e56eadf | 406 | bool next_status_eosp; |
8ca151b5 | 407 | spinlock_t lock; |
24afba76 | 408 | struct iwl_mvm_tid_data tid_data[IWL_MAX_TID_COUNT + 1]; |
8ca151b5 JB |
409 | struct iwl_lq_sta lq_sta; |
410 | struct ieee80211_vif *vif; | |
f5e28eac | 411 | struct iwl_mvm_key_pn __rcu *ptk_pn[4]; |
a571f5f6 | 412 | struct iwl_mvm_rxq_dup_data *dup_data; |
f5e28eac | 413 | |
24afba76 LK |
414 | u16 deferred_traffic_tid_map; |
415 | ||
416 | u8 reserved_queue; | |
417 | ||
9ee718aa EL |
418 | /* Temporary, until the new TLC will control the Tx protection */ |
419 | s8 tx_protection; | |
420 | bool tt_tx_protection; | |
003e5236 AO |
421 | |
422 | bool disable_tx; | |
04e3a5da | 423 | bool tlc_amsdu; |
efed6640 | 424 | u8 agg_tids; |
36be0eb6 | 425 | u8 sleep_tx_count; |
8ca151b5 JB |
426 | }; |
427 | ||
5b577a90 JB |
428 | static inline struct iwl_mvm_sta * |
429 | iwl_mvm_sta_from_mac80211(struct ieee80211_sta *sta) | |
430 | { | |
431 | return (void *)sta->drv_priv; | |
432 | } | |
433 | ||
8ca151b5 JB |
434 | /** |
435 | * struct iwl_mvm_int_sta - representation of an internal station (auxiliary or | |
436 | * broadcast) | |
437 | * @sta_id: the index of the station in the fw (will be replaced by id_n_color) | |
438 | * @tfd_queue_msk: the tfd queues used by the station | |
439 | */ | |
440 | struct iwl_mvm_int_sta { | |
441 | u32 sta_id; | |
442 | u32 tfd_queue_msk; | |
443 | }; | |
444 | ||
24afba76 LK |
445 | /** |
446 | * Send the STA info to the FW. | |
447 | * | |
448 | * @mvm: the iwl_mvm* to use | |
449 | * @sta: the STA | |
450 | * @update: this is true if the FW is being updated about a STA it already knows | |
451 | * about. Otherwise (if this is a new STA), this should be false. | |
452 | * @flags: if update==true, this marks what is being changed via ORs of values | |
453 | * from enum iwl_sta_modify_flag. Otherwise, this is ignored. | |
454 | */ | |
7a453973 | 455 | int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta, |
24afba76 | 456 | bool update, unsigned int flags); |
8ca151b5 JB |
457 | int iwl_mvm_add_sta(struct iwl_mvm *mvm, |
458 | struct ieee80211_vif *vif, | |
459 | struct ieee80211_sta *sta); | |
7a453973 JB |
460 | int iwl_mvm_update_sta(struct iwl_mvm *mvm, |
461 | struct ieee80211_vif *vif, | |
462 | struct ieee80211_sta *sta); | |
8ca151b5 JB |
463 | int iwl_mvm_rm_sta(struct iwl_mvm *mvm, |
464 | struct ieee80211_vif *vif, | |
465 | struct ieee80211_sta *sta); | |
466 | int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, | |
467 | struct ieee80211_vif *vif, | |
468 | u8 sta_id); | |
469 | int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, | |
470 | struct ieee80211_vif *vif, | |
471 | struct ieee80211_sta *sta, | |
d6ee54a9 LC |
472 | struct ieee80211_key_conf *keyconf, |
473 | u8 key_offset); | |
8ca151b5 JB |
474 | int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, |
475 | struct ieee80211_vif *vif, | |
476 | struct ieee80211_sta *sta, | |
477 | struct ieee80211_key_conf *keyconf); | |
478 | ||
479 | void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, | |
480 | struct ieee80211_vif *vif, | |
481 | struct ieee80211_key_conf *keyconf, | |
482 | struct ieee80211_sta *sta, u32 iv32, | |
483 | u16 *phase1key); | |
484 | ||
0416841d JB |
485 | void iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, |
486 | struct iwl_rx_cmd_buffer *rxb); | |
3e56eadf | 487 | |
8ca151b5 JB |
488 | /* AMPDU */ |
489 | int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, | |
854c5705 | 490 | int tid, u16 ssn, bool start, u8 buf_size); |
8ca151b5 JB |
491 | int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
492 | struct ieee80211_sta *sta, u16 tid, u16 *ssn); | |
493 | int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
bb81bb68 EG |
494 | struct ieee80211_sta *sta, u16 tid, u8 buf_size, |
495 | bool amsdu); | |
8ca151b5 JB |
496 | int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
497 | struct ieee80211_sta *sta, u16 tid); | |
e3d9e7ce EG |
498 | int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
499 | struct ieee80211_sta *sta, u16 tid); | |
8ca151b5 JB |
500 | |
501 | int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm); | |
712b24ad | 502 | void iwl_mvm_del_aux_sta(struct iwl_mvm *mvm); |
013290aa JB |
503 | |
504 | int iwl_mvm_alloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); | |
505 | int iwl_mvm_send_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); | |
506 | int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); | |
507 | int iwl_mvm_send_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); | |
508 | int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); | |
0e39eb03 CRI |
509 | int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, |
510 | struct iwl_mvm_int_sta *sta, | |
511 | u32 qmask, enum nl80211_iftype iftype); | |
013290aa | 512 | void iwl_mvm_dealloc_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); |
0e39eb03 CRI |
513 | int iwl_mvm_add_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); |
514 | int iwl_mvm_rm_snif_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif); | |
515 | void iwl_mvm_dealloc_snif_sta(struct iwl_mvm *mvm); | |
013290aa | 516 | |
8ca151b5 | 517 | void iwl_mvm_sta_drained_wk(struct work_struct *wk); |
9cc40712 JB |
518 | void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, |
519 | struct ieee80211_sta *sta); | |
520 | void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, | |
521 | struct ieee80211_sta *sta, | |
8ca151b5 | 522 | enum ieee80211_frame_release_type reason, |
3e56eadf JB |
523 | u16 cnt, u16 tids, bool more_data, |
524 | bool agg); | |
8ca151b5 JB |
525 | int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, |
526 | bool drain); | |
09b0ce1a AO |
527 | void iwl_mvm_sta_modify_disable_tx(struct iwl_mvm *mvm, |
528 | struct iwl_mvm_sta *mvmsta, bool disable); | |
003e5236 AO |
529 | void iwl_mvm_sta_modify_disable_tx_ap(struct iwl_mvm *mvm, |
530 | struct ieee80211_sta *sta, | |
531 | bool disable); | |
532 | void iwl_mvm_modify_all_sta_disable_tx(struct iwl_mvm *mvm, | |
533 | struct iwl_mvm_vif *mvmvif, | |
534 | bool disable); | |
dc88b4ba | 535 | void iwl_mvm_csa_client_absent(struct iwl_mvm *mvm, struct ieee80211_vif *vif); |
24afba76 | 536 | void iwl_mvm_add_new_dqa_stream_wk(struct work_struct *wk); |
8ca151b5 JB |
537 | |
538 | #endif /* __sta_h__ */ |