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8ca151b5 JB |
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 |
0db056d3 | 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 |
0db056d3 | 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 | #include <linux/etherdevice.h> | |
69 | #include <net/mac80211.h> | |
70 | #include "iwl-io.h" | |
71 | #include "iwl-prph.h" | |
72 | #include "fw-api.h" | |
73 | #include "mvm.h" | |
7f0a7c67 | 74 | #include "time-event.h" |
2f89a5d7 | 75 | #include "fw-dbg.h" |
8ca151b5 JB |
76 | |
77 | const u8 iwl_mvm_ac_to_tx_fifo[] = { | |
8ca151b5 | 78 | IWL_MVM_TX_FIFO_VO, |
3dd94794 EG |
79 | IWL_MVM_TX_FIFO_VI, |
80 | IWL_MVM_TX_FIFO_BE, | |
81 | IWL_MVM_TX_FIFO_BK, | |
8ca151b5 JB |
82 | }; |
83 | ||
84 | struct iwl_mvm_mac_iface_iterator_data { | |
85 | struct iwl_mvm *mvm; | |
86 | struct ieee80211_vif *vif; | |
87 | unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)]; | |
88 | unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)]; | |
8ca151b5 JB |
89 | enum iwl_tsf_id preferred_tsf; |
90 | bool found_vif; | |
91 | }; | |
92 | ||
a74346d7 AN |
93 | struct iwl_mvm_hw_queues_iface_iterator_data { |
94 | struct ieee80211_vif *exclude_vif; | |
95 | unsigned long used_hw_queues; | |
96 | }; | |
97 | ||
6e97b0d2 IP |
98 | static void iwl_mvm_mac_tsf_id_iter(void *_data, u8 *mac, |
99 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
100 | { |
101 | struct iwl_mvm_mac_iface_iterator_data *data = _data; | |
102 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2c3e62a1 | 103 | u16 min_bi; |
8ca151b5 | 104 | |
6e97b0d2 IP |
105 | /* Skip the interface for which we are trying to assign a tsf_id */ |
106 | if (vif == data->vif) | |
8ca151b5 | 107 | return; |
8ca151b5 JB |
108 | |
109 | /* | |
110 | * The TSF is a hardware/firmware resource, there are 4 and | |
111 | * the driver should assign and free them as needed. However, | |
112 | * there are cases where 2 MACs should share the same TSF ID | |
113 | * for the purpose of clock sync, an optimization to avoid | |
114 | * clock drift causing overlapping TBTTs/DTIMs for a GO and | |
115 | * client in the system. | |
116 | * | |
117 | * The firmware will decide according to the MAC type which | |
118 | * will be the master and slave. Clients that need to sync | |
119 | * with a remote station will be the master, and an AP or GO | |
120 | * will be the slave. | |
121 | * | |
122 | * Depending on the new interface type it can be slaved to | |
123 | * or become the master of an existing interface. | |
124 | */ | |
125 | switch (data->vif->type) { | |
126 | case NL80211_IFTYPE_STATION: | |
127 | /* | |
2c3e62a1 IP |
128 | * The new interface is a client, so if the one we're iterating |
129 | * is an AP, and the beacon interval of the AP is a multiple or | |
130 | * divisor of the beacon interval of the client, the same TSF | |
131 | * should be used to avoid drift between the new client and | |
132 | * existing AP. The existing AP will get drift updates from the | |
133 | * new client context in this case. | |
8ca151b5 | 134 | */ |
2c3e62a1 IP |
135 | if (vif->type != NL80211_IFTYPE_AP || |
136 | data->preferred_tsf != NUM_TSF_IDS || | |
137 | !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) | |
138 | break; | |
139 | ||
140 | min_bi = min(data->vif->bss_conf.beacon_int, | |
141 | vif->bss_conf.beacon_int); | |
142 | ||
143 | if (!min_bi) | |
144 | break; | |
145 | ||
146 | if ((data->vif->bss_conf.beacon_int - | |
147 | vif->bss_conf.beacon_int) % min_bi == 0) { | |
148 | data->preferred_tsf = mvmvif->tsf_id; | |
149 | return; | |
8ca151b5 JB |
150 | } |
151 | break; | |
2c3e62a1 | 152 | |
8ca151b5 JB |
153 | case NL80211_IFTYPE_AP: |
154 | /* | |
2c3e62a1 IP |
155 | * The new interface is AP/GO, so if its beacon interval is a |
156 | * multiple or a divisor of the beacon interval of an existing | |
157 | * interface, it should get drift updates from an existing | |
158 | * client or use the same TSF as an existing GO. There's no | |
159 | * drift between TSFs internally but if they used different | |
160 | * TSFs then a new client MAC could update one of them and | |
161 | * cause drift that way. | |
8ca151b5 | 162 | */ |
2c3e62a1 IP |
163 | if ((vif->type != NL80211_IFTYPE_AP && |
164 | vif->type != NL80211_IFTYPE_STATION) || | |
165 | data->preferred_tsf != NUM_TSF_IDS || | |
166 | !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) | |
167 | break; | |
168 | ||
169 | min_bi = min(data->vif->bss_conf.beacon_int, | |
170 | vif->bss_conf.beacon_int); | |
171 | ||
172 | if (!min_bi) | |
173 | break; | |
174 | ||
175 | if ((data->vif->bss_conf.beacon_int - | |
176 | vif->bss_conf.beacon_int) % min_bi == 0) { | |
177 | data->preferred_tsf = mvmvif->tsf_id; | |
178 | return; | |
8ca151b5 JB |
179 | } |
180 | break; | |
181 | default: | |
182 | /* | |
183 | * For all other interface types there's no need to | |
184 | * take drift into account. Either they're exclusive | |
185 | * like IBSS and monitor, or we don't care much about | |
186 | * their TSF (like P2P Device), but we won't be able | |
187 | * to share the TSF resource. | |
188 | */ | |
189 | break; | |
190 | } | |
191 | ||
192 | /* | |
193 | * Unless we exited above, we can't share the TSF resource | |
194 | * that the virtual interface we're iterating over is using | |
195 | * with the new one, so clear the available bit and if this | |
196 | * was the preferred one, reset that as well. | |
197 | */ | |
198 | __clear_bit(mvmvif->tsf_id, data->available_tsf_ids); | |
199 | ||
200 | if (data->preferred_tsf == mvmvif->tsf_id) | |
201 | data->preferred_tsf = NUM_TSF_IDS; | |
202 | } | |
203 | ||
110cf810 JB |
204 | /* |
205 | * Get the mask of the queues used by the vif | |
206 | */ | |
d92b732e | 207 | u32 iwl_mvm_mac_get_queues_mask(struct ieee80211_vif *vif) |
110cf810 JB |
208 | { |
209 | u32 qmask = 0, ac; | |
210 | ||
211 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) | |
212 | return BIT(IWL_MVM_OFFCHANNEL_QUEUE); | |
213 | ||
1008e442 IP |
214 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
215 | if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) | |
216 | qmask |= BIT(vif->hw_queue[ac]); | |
217 | } | |
110cf810 | 218 | |
4d339989 LK |
219 | if (vif->type == NL80211_IFTYPE_AP || |
220 | vif->type == NL80211_IFTYPE_ADHOC) | |
110cf810 JB |
221 | qmask |= BIT(vif->cab_queue); |
222 | ||
223 | return qmask; | |
224 | } | |
225 | ||
a74346d7 AN |
226 | static void iwl_mvm_iface_hw_queues_iter(void *_data, u8 *mac, |
227 | struct ieee80211_vif *vif) | |
228 | { | |
229 | struct iwl_mvm_hw_queues_iface_iterator_data *data = _data; | |
230 | ||
231 | /* exclude the given vif */ | |
232 | if (vif == data->exclude_vif) | |
233 | return; | |
234 | ||
235 | data->used_hw_queues |= iwl_mvm_mac_get_queues_mask(vif); | |
236 | } | |
237 | ||
238 | static void iwl_mvm_mac_sta_hw_queues_iter(void *_data, | |
239 | struct ieee80211_sta *sta) | |
240 | { | |
241 | struct iwl_mvm_hw_queues_iface_iterator_data *data = _data; | |
242 | struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
243 | ||
244 | /* Mark the queues used by the sta */ | |
245 | data->used_hw_queues |= mvmsta->tfd_queue_msk; | |
246 | } | |
247 | ||
248 | unsigned long iwl_mvm_get_used_hw_queues(struct iwl_mvm *mvm, | |
249 | struct ieee80211_vif *exclude_vif) | |
250 | { | |
51ec09af | 251 | u8 sta_id; |
a74346d7 AN |
252 | struct iwl_mvm_hw_queues_iface_iterator_data data = { |
253 | .exclude_vif = exclude_vif, | |
254 | .used_hw_queues = | |
255 | BIT(IWL_MVM_OFFCHANNEL_QUEUE) | | |
097129c9 | 256 | BIT(mvm->aux_queue), |
a74346d7 AN |
257 | }; |
258 | ||
097129c9 LK |
259 | if (iwl_mvm_is_dqa_supported(mvm)) |
260 | data.used_hw_queues |= BIT(IWL_MVM_DQA_CMD_QUEUE); | |
261 | else | |
262 | data.used_hw_queues |= BIT(IWL_MVM_CMD_QUEUE); | |
263 | ||
a74346d7 AN |
264 | lockdep_assert_held(&mvm->mutex); |
265 | ||
266 | /* mark all VIF used hw queues */ | |
267 | ieee80211_iterate_active_interfaces_atomic( | |
268 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
269 | iwl_mvm_iface_hw_queues_iter, &data); | |
270 | ||
271 | /* don't assign the same hw queues as TDLS stations */ | |
272 | ieee80211_iterate_stations_atomic(mvm->hw, | |
273 | iwl_mvm_mac_sta_hw_queues_iter, | |
274 | &data); | |
275 | ||
51ec09af AN |
276 | /* |
277 | * Some TDLS stations may be removed but are in the process of being | |
278 | * drained. Don't touch their queues. | |
279 | */ | |
280 | for_each_set_bit(sta_id, mvm->sta_drained, IWL_MVM_STATION_COUNT) | |
281 | data.used_hw_queues |= mvm->tfd_drained[sta_id]; | |
282 | ||
a74346d7 AN |
283 | return data.used_hw_queues; |
284 | } | |
285 | ||
6e97b0d2 IP |
286 | static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, |
287 | struct ieee80211_vif *vif) | |
288 | { | |
289 | struct iwl_mvm_mac_iface_iterator_data *data = _data; | |
290 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
6e97b0d2 IP |
291 | |
292 | /* Iterator may already find the interface being added -- skip it */ | |
293 | if (vif == data->vif) { | |
294 | data->found_vif = true; | |
295 | return; | |
296 | } | |
297 | ||
6e97b0d2 IP |
298 | /* Mark MAC IDs as used by clearing the available bit, and |
299 | * (below) mark TSFs as used if their existing use is not | |
300 | * compatible with the new interface type. | |
301 | * No locking or atomic bit operations are needed since the | |
302 | * data is on the stack of the caller function. | |
303 | */ | |
304 | __clear_bit(mvmvif->id, data->available_mac_ids); | |
305 | ||
306 | /* find a suitable tsf_id */ | |
307 | iwl_mvm_mac_tsf_id_iter(_data, mac, vif); | |
308 | } | |
309 | ||
6e97b0d2 IP |
310 | void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, |
311 | struct ieee80211_vif *vif) | |
312 | { | |
313 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
314 | struct iwl_mvm_mac_iface_iterator_data data = { | |
315 | .mvm = mvm, | |
316 | .vif = vif, | |
317 | .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, | |
318 | /* no preference yet */ | |
319 | .preferred_tsf = NUM_TSF_IDS, | |
320 | }; | |
321 | ||
322 | ieee80211_iterate_active_interfaces_atomic( | |
323 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
324 | iwl_mvm_mac_tsf_id_iter, &data); | |
325 | ||
326 | if (data.preferred_tsf != NUM_TSF_IDS) | |
327 | mvmvif->tsf_id = data.preferred_tsf; | |
328 | else if (!test_bit(mvmvif->tsf_id, data.available_tsf_ids)) | |
329 | mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, | |
330 | NUM_TSF_IDS); | |
331 | } | |
332 | ||
8ca151b5 JB |
333 | static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, |
334 | struct ieee80211_vif *vif) | |
335 | { | |
336 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
337 | struct iwl_mvm_mac_iface_iterator_data data = { | |
338 | .mvm = mvm, | |
339 | .vif = vif, | |
340 | .available_mac_ids = { (1 << NUM_MAC_INDEX_DRIVER) - 1 }, | |
341 | .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, | |
342 | /* no preference yet */ | |
343 | .preferred_tsf = NUM_TSF_IDS, | |
8ca151b5 JB |
344 | .found_vif = false, |
345 | }; | |
346 | u32 ac; | |
9ee718aa | 347 | int ret, i; |
110cf810 | 348 | unsigned long used_hw_queues; |
8ca151b5 JB |
349 | |
350 | /* | |
351 | * Allocate a MAC ID and a TSF for this MAC, along with the queues | |
352 | * and other resources. | |
353 | */ | |
354 | ||
355 | /* | |
356 | * Before the iterator, we start with all MAC IDs and TSFs available. | |
357 | * | |
358 | * During iteration, all MAC IDs are cleared that are in use by other | |
359 | * virtual interfaces, and all TSF IDs are cleared that can't be used | |
360 | * by this new virtual interface because they're used by an interface | |
361 | * that can't share it with the new one. | |
362 | * At the same time, we check if there's a preferred TSF in the case | |
363 | * that we should share it with another interface. | |
364 | */ | |
365 | ||
5023d966 JB |
366 | /* Currently, MAC ID 0 should be used only for the managed/IBSS vif */ |
367 | switch (vif->type) { | |
368 | case NL80211_IFTYPE_ADHOC: | |
369 | break; | |
370 | case NL80211_IFTYPE_STATION: | |
371 | if (!vif->p2p) | |
372 | break; | |
373 | /* fall through */ | |
374 | default: | |
ec8b6885 | 375 | __clear_bit(0, data.available_mac_ids); |
5023d966 | 376 | } |
ec8b6885 | 377 | |
8ca151b5 JB |
378 | ieee80211_iterate_active_interfaces_atomic( |
379 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
380 | iwl_mvm_mac_iface_iterator, &data); | |
381 | ||
a74346d7 AN |
382 | used_hw_queues = iwl_mvm_get_used_hw_queues(mvm, vif); |
383 | ||
8ca151b5 JB |
384 | /* |
385 | * In the case we're getting here during resume, it's similar to | |
386 | * firmware restart, and with RESUME_ALL the iterator will find | |
387 | * the vif being added already. | |
388 | * We don't want to reassign any IDs in either case since doing | |
389 | * so would probably assign different IDs (as interfaces aren't | |
390 | * necessarily added in the same order), but the old IDs were | |
391 | * preserved anyway, so skip ID assignment for both resume and | |
392 | * recovery. | |
393 | */ | |
394 | if (data.found_vif) | |
395 | return 0; | |
396 | ||
397 | /* Therefore, in recovery, we can't get here */ | |
fd11bd05 IP |
398 | if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) |
399 | return -EBUSY; | |
8ca151b5 JB |
400 | |
401 | mvmvif->id = find_first_bit(data.available_mac_ids, | |
402 | NUM_MAC_INDEX_DRIVER); | |
403 | if (mvmvif->id == NUM_MAC_INDEX_DRIVER) { | |
404 | IWL_ERR(mvm, "Failed to init MAC context - no free ID!\n"); | |
405 | ret = -EIO; | |
406 | goto exit_fail; | |
407 | } | |
408 | ||
409 | if (data.preferred_tsf != NUM_TSF_IDS) | |
410 | mvmvif->tsf_id = data.preferred_tsf; | |
411 | else | |
412 | mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, | |
413 | NUM_TSF_IDS); | |
414 | if (mvmvif->tsf_id == NUM_TSF_IDS) { | |
415 | IWL_ERR(mvm, "Failed to init MAC context - no free TSF!\n"); | |
416 | ret = -EIO; | |
417 | goto exit_fail; | |
418 | } | |
419 | ||
420 | mvmvif->color = 0; | |
421 | ||
1e849c93 IP |
422 | INIT_LIST_HEAD(&mvmvif->time_event_data.list); |
423 | mvmvif->time_event_data.id = TE_MAX; | |
424 | ||
8ca151b5 JB |
425 | /* No need to allocate data queues to P2P Device MAC.*/ |
426 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
427 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
428 | vif->hw_queue[ac] = IEEE80211_INVAL_HW_QUEUE; | |
429 | ||
430 | return 0; | |
431 | } | |
432 | ||
24afba76 LK |
433 | /* |
434 | * Find available queues, and allocate them to the ACs. When in | |
435 | * DQA-mode they aren't really used, and this is done only so the | |
436 | * mac80211 ieee80211_check_queues() function won't fail | |
437 | */ | |
8ca151b5 | 438 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
110cf810 | 439 | u8 queue = find_first_zero_bit(&used_hw_queues, |
19e737c9 | 440 | mvm->first_agg_queue); |
8ca151b5 | 441 | |
24afba76 LK |
442 | if (!iwl_mvm_is_dqa_supported(mvm) && |
443 | queue >= mvm->first_agg_queue) { | |
8ca151b5 JB |
444 | IWL_ERR(mvm, "Failed to allocate queue\n"); |
445 | ret = -EIO; | |
446 | goto exit_fail; | |
447 | } | |
448 | ||
110cf810 | 449 | __set_bit(queue, &used_hw_queues); |
8ca151b5 JB |
450 | vif->hw_queue[ac] = queue; |
451 | } | |
452 | ||
453 | /* Allocate the CAB queue for softAP and GO interfaces */ | |
454 | if (vif->type == NL80211_IFTYPE_AP) { | |
0e0e4420 LK |
455 | u8 queue; |
456 | ||
457 | if (!iwl_mvm_is_dqa_supported(mvm)) { | |
458 | queue = find_first_zero_bit(&used_hw_queues, | |
459 | mvm->first_agg_queue); | |
460 | ||
461 | if (queue >= mvm->first_agg_queue) { | |
462 | IWL_ERR(mvm, "Failed to allocate cab queue\n"); | |
463 | ret = -EIO; | |
464 | goto exit_fail; | |
465 | } | |
466 | } else { | |
467 | queue = IWL_MVM_DQA_GCAST_QUEUE; | |
8ca151b5 JB |
468 | } |
469 | ||
470 | vif->cab_queue = queue; | |
471 | } else { | |
472 | vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; | |
473 | } | |
474 | ||
0ae98812 SS |
475 | mvmvif->bcast_sta.sta_id = IWL_MVM_INVALID_STA; |
476 | mvmvif->mcast_sta.sta_id = IWL_MVM_INVALID_STA; | |
477 | mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; | |
8ca151b5 | 478 | |
9ee718aa EL |
479 | for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) |
480 | mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC; | |
481 | ||
8ca151b5 JB |
482 | return 0; |
483 | ||
484 | exit_fail: | |
485 | memset(mvmvif, 0, sizeof(struct iwl_mvm_vif)); | |
486 | memset(vif->hw_queue, IEEE80211_INVAL_HW_QUEUE, sizeof(vif->hw_queue)); | |
487 | vif->cab_queue = IEEE80211_INVAL_HW_QUEUE; | |
488 | return ret; | |
489 | } | |
490 | ||
491 | int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
492 | { | |
5d42e7b2 EG |
493 | unsigned int wdg_timeout = |
494 | iwl_mvm_get_wd_timeout(mvm, vif, false, false); | |
8ca151b5 JB |
495 | u32 ac; |
496 | int ret; | |
497 | ||
498 | lockdep_assert_held(&mvm->mutex); | |
499 | ||
500 | ret = iwl_mvm_mac_ctxt_allocate_resources(mvm, vif); | |
501 | if (ret) | |
502 | return ret; | |
503 | ||
8236f7db SS |
504 | /* If DQA is supported - queues will be enabled when needed */ |
505 | if (iwl_mvm_is_dqa_supported(mvm)) | |
506 | return 0; | |
507 | ||
8ca151b5 JB |
508 | switch (vif->type) { |
509 | case NL80211_IFTYPE_P2P_DEVICE: | |
8236f7db SS |
510 | iwl_mvm_enable_ac_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE, |
511 | IWL_MVM_OFFCHANNEL_QUEUE, | |
512 | IWL_MVM_TX_FIFO_VO, 0, wdg_timeout); | |
8ca151b5 JB |
513 | break; |
514 | case NL80211_IFTYPE_AP: | |
4ecafae9 | 515 | iwl_mvm_enable_ac_txq(mvm, vif->cab_queue, vif->cab_queue, |
5c1156ef | 516 | IWL_MVM_TX_FIFO_MCAST, 0, wdg_timeout); |
8ca151b5 JB |
517 | /* fall through */ |
518 | default: | |
519 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
3edf8ff6 | 520 | iwl_mvm_enable_ac_txq(mvm, vif->hw_queue[ac], |
4ecafae9 | 521 | vif->hw_queue[ac], |
5c1156ef | 522 | iwl_mvm_ac_to_tx_fifo[ac], 0, |
4cf677fd | 523 | wdg_timeout); |
8ca151b5 JB |
524 | break; |
525 | } | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
530 | void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
531 | { | |
532 | int ac; | |
533 | ||
534 | lockdep_assert_held(&mvm->mutex); | |
535 | ||
df88c08d LK |
536 | /* |
537 | * If DQA is supported - queues were already disabled, since in | |
538 | * DQA-mode the queues are a property of the STA and not of the | |
539 | * vif, and at this point the STA was already deleted | |
540 | */ | |
541 | if (iwl_mvm_is_dqa_supported(mvm)) | |
542 | return; | |
543 | ||
8ca151b5 JB |
544 | switch (vif->type) { |
545 | case NL80211_IFTYPE_P2P_DEVICE: | |
df88c08d LK |
546 | iwl_mvm_disable_txq(mvm, IWL_MVM_OFFCHANNEL_QUEUE, |
547 | IWL_MVM_OFFCHANNEL_QUEUE, | |
548 | IWL_MAX_TID_COUNT, 0); | |
4c965139 | 549 | |
8ca151b5 JB |
550 | break; |
551 | case NL80211_IFTYPE_AP: | |
4ecafae9 LK |
552 | iwl_mvm_disable_txq(mvm, vif->cab_queue, vif->cab_queue, |
553 | IWL_MAX_TID_COUNT, 0); | |
8ca151b5 JB |
554 | /* fall through */ |
555 | default: | |
556 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
4ecafae9 LK |
557 | iwl_mvm_disable_txq(mvm, vif->hw_queue[ac], |
558 | vif->hw_queue[ac], | |
559 | IWL_MAX_TID_COUNT, 0); | |
8ca151b5 JB |
560 | } |
561 | } | |
562 | ||
563 | static void iwl_mvm_ack_rates(struct iwl_mvm *mvm, | |
564 | struct ieee80211_vif *vif, | |
57fbcce3 | 565 | enum nl80211_band band, |
8ca151b5 JB |
566 | u8 *cck_rates, u8 *ofdm_rates) |
567 | { | |
568 | struct ieee80211_supported_band *sband; | |
569 | unsigned long basic = vif->bss_conf.basic_rates; | |
570 | int lowest_present_ofdm = 100; | |
571 | int lowest_present_cck = 100; | |
572 | u8 cck = 0; | |
573 | u8 ofdm = 0; | |
574 | int i; | |
575 | ||
576 | sband = mvm->hw->wiphy->bands[band]; | |
577 | ||
578 | for_each_set_bit(i, &basic, BITS_PER_LONG) { | |
579 | int hw = sband->bitrates[i].hw_value; | |
580 | if (hw >= IWL_FIRST_OFDM_RATE) { | |
581 | ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); | |
582 | if (lowest_present_ofdm > hw) | |
583 | lowest_present_ofdm = hw; | |
584 | } else { | |
585 | BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); | |
586 | ||
587 | cck |= BIT(hw); | |
588 | if (lowest_present_cck > hw) | |
589 | lowest_present_cck = hw; | |
590 | } | |
591 | } | |
592 | ||
593 | /* | |
594 | * Now we've got the basic rates as bitmaps in the ofdm and cck | |
595 | * variables. This isn't sufficient though, as there might not | |
596 | * be all the right rates in the bitmap. E.g. if the only basic | |
597 | * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps | |
598 | * and 6 Mbps because the 802.11-2007 standard says in 9.6: | |
599 | * | |
600 | * [...] a STA responding to a received frame shall transmit | |
601 | * its Control Response frame [...] at the highest rate in the | |
602 | * BSSBasicRateSet parameter that is less than or equal to the | |
603 | * rate of the immediately previous frame in the frame exchange | |
604 | * sequence ([...]) and that is of the same modulation class | |
605 | * ([...]) as the received frame. If no rate contained in the | |
606 | * BSSBasicRateSet parameter meets these conditions, then the | |
607 | * control frame sent in response to a received frame shall be | |
608 | * transmitted at the highest mandatory rate of the PHY that is | |
609 | * less than or equal to the rate of the received frame, and | |
610 | * that is of the same modulation class as the received frame. | |
611 | * | |
612 | * As a consequence, we need to add all mandatory rates that are | |
613 | * lower than all of the basic rates to these bitmaps. | |
614 | */ | |
615 | ||
616 | if (IWL_RATE_24M_INDEX < lowest_present_ofdm) | |
617 | ofdm |= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE; | |
618 | if (IWL_RATE_12M_INDEX < lowest_present_ofdm) | |
619 | ofdm |= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE; | |
620 | /* 6M already there or needed so always add */ | |
621 | ofdm |= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE; | |
622 | ||
623 | /* | |
624 | * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. | |
625 | * Note, however: | |
626 | * - if no CCK rates are basic, it must be ERP since there must | |
627 | * be some basic rates at all, so they're OFDM => ERP PHY | |
628 | * (or we're in 5 GHz, and the cck bitmap will never be used) | |
629 | * - if 11M is a basic rate, it must be ERP as well, so add 5.5M | |
630 | * - if 5.5M is basic, 1M and 2M are mandatory | |
631 | * - if 2M is basic, 1M is mandatory | |
632 | * - if 1M is basic, that's the only valid ACK rate. | |
633 | * As a consequence, it's not as complicated as it sounds, just add | |
634 | * any lower rates to the ACK rate bitmap. | |
635 | */ | |
636 | if (IWL_RATE_11M_INDEX < lowest_present_cck) | |
637 | cck |= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE; | |
638 | if (IWL_RATE_5M_INDEX < lowest_present_cck) | |
639 | cck |= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE; | |
640 | if (IWL_RATE_2M_INDEX < lowest_present_cck) | |
641 | cck |= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE; | |
642 | /* 1M already there or needed so always add */ | |
643 | cck |= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE; | |
644 | ||
645 | *cck_rates = cck; | |
646 | *ofdm_rates = ofdm; | |
647 | } | |
648 | ||
8a5e3660 AA |
649 | static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm *mvm, |
650 | struct ieee80211_vif *vif, | |
651 | struct iwl_mac_ctx_cmd *cmd) | |
652 | { | |
653 | /* for both sta and ap, ht_operation_mode hold the protection_mode */ | |
654 | u8 protection_mode = vif->bss_conf.ht_operation_mode & | |
655 | IEEE80211_HT_OP_MODE_PROTECTION; | |
656 | /* The fw does not distinguish between ht and fat */ | |
657 | u32 ht_flag = MAC_PROT_FLG_HT_PROT | MAC_PROT_FLG_FAT_PROT; | |
658 | ||
659 | IWL_DEBUG_RATE(mvm, "protection mode set to %d\n", protection_mode); | |
660 | /* | |
661 | * See section 9.23.3.1 of IEEE 80211-2012. | |
662 | * Nongreenfield HT STAs Present is not supported. | |
663 | */ | |
664 | switch (protection_mode) { | |
665 | case IEEE80211_HT_OP_MODE_PROTECTION_NONE: | |
666 | break; | |
667 | case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: | |
668 | case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: | |
669 | cmd->protection_flags |= cpu_to_le32(ht_flag); | |
670 | break; | |
671 | case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: | |
672 | /* Protect when channel wider than 20MHz */ | |
673 | if (vif->bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) | |
674 | cmd->protection_flags |= cpu_to_le32(ht_flag); | |
675 | break; | |
676 | default: | |
677 | IWL_ERR(mvm, "Illegal protection mode %d\n", | |
678 | protection_mode); | |
679 | break; | |
680 | } | |
681 | } | |
682 | ||
8ca151b5 JB |
683 | static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, |
684 | struct ieee80211_vif *vif, | |
685 | struct iwl_mac_ctx_cmd *cmd, | |
3dfd3a97 | 686 | const u8 *bssid_override, |
8ca151b5 JB |
687 | u32 action) |
688 | { | |
689 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
690 | struct ieee80211_chanctx_conf *chanctx; | |
8a5e3660 AA |
691 | bool ht_enabled = !!(vif->bss_conf.ht_operation_mode & |
692 | IEEE80211_HT_OP_MODE_PROTECTION); | |
8ca151b5 | 693 | u8 cck_ack_rates, ofdm_ack_rates; |
3dfd3a97 | 694 | const u8 *bssid = bssid_override ?: vif->bss_conf.bssid; |
8ca151b5 JB |
695 | int i; |
696 | ||
697 | cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
698 | mvmvif->color)); | |
699 | cmd->action = cpu_to_le32(action); | |
700 | ||
701 | switch (vif->type) { | |
702 | case NL80211_IFTYPE_STATION: | |
703 | if (vif->p2p) | |
704 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_STA); | |
705 | else | |
706 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_BSS_STA); | |
707 | break; | |
708 | case NL80211_IFTYPE_AP: | |
709 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_GO); | |
710 | break; | |
711 | case NL80211_IFTYPE_MONITOR: | |
712 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_LISTENER); | |
713 | break; | |
714 | case NL80211_IFTYPE_P2P_DEVICE: | |
715 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE); | |
716 | break; | |
717 | case NL80211_IFTYPE_ADHOC: | |
718 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_IBSS); | |
719 | break; | |
720 | default: | |
721 | WARN_ON_ONCE(1); | |
722 | } | |
723 | ||
724 | cmd->tsf_id = cpu_to_le32(mvmvif->tsf_id); | |
725 | ||
726 | memcpy(cmd->node_addr, vif->addr, ETH_ALEN); | |
3dfd3a97 JB |
727 | |
728 | if (bssid) | |
729 | memcpy(cmd->bssid_addr, bssid, ETH_ALEN); | |
8ca151b5 JB |
730 | else |
731 | eth_broadcast_addr(cmd->bssid_addr); | |
732 | ||
733 | rcu_read_lock(); | |
734 | chanctx = rcu_dereference(vif->chanctx_conf); | |
735 | iwl_mvm_ack_rates(mvm, vif, chanctx ? chanctx->def.chan->band | |
57fbcce3 | 736 | : NL80211_BAND_2GHZ, |
8ca151b5 JB |
737 | &cck_ack_rates, &ofdm_ack_rates); |
738 | rcu_read_unlock(); | |
739 | ||
740 | cmd->cck_rates = cpu_to_le32((u32)cck_ack_rates); | |
741 | cmd->ofdm_rates = cpu_to_le32((u32)ofdm_ack_rates); | |
742 | ||
743 | cmd->cck_short_preamble = | |
744 | cpu_to_le32(vif->bss_conf.use_short_preamble ? | |
745 | MAC_FLG_SHORT_PREAMBLE : 0); | |
746 | cmd->short_slot = | |
747 | cpu_to_le32(vif->bss_conf.use_short_slot ? | |
748 | MAC_FLG_SHORT_SLOT : 0); | |
749 | ||
bd6f5bd7 AB |
750 | cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP); |
751 | ||
3dd94794 EG |
752 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
753 | u8 txf = iwl_mvm_ac_to_tx_fifo[i]; | |
754 | ||
755 | cmd->ac[txf].cw_min = | |
756 | cpu_to_le16(mvmvif->queue_params[i].cw_min); | |
757 | cmd->ac[txf].cw_max = | |
758 | cpu_to_le16(mvmvif->queue_params[i].cw_max); | |
759 | cmd->ac[txf].edca_txop = | |
8ca151b5 | 760 | cpu_to_le16(mvmvif->queue_params[i].txop * 32); |
3dd94794 EG |
761 | cmd->ac[txf].aifsn = mvmvif->queue_params[i].aifs; |
762 | cmd->ac[txf].fifos_mask = BIT(txf); | |
8ca151b5 JB |
763 | } |
764 | ||
765 | if (vif->bss_conf.qos) | |
766 | cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA); | |
767 | ||
dc271ee0 | 768 | if (vif->bss_conf.use_cts_prot) |
cc7ee2ba | 769 | cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); |
dc271ee0 | 770 | |
8a5e3660 AA |
771 | IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n", |
772 | vif->bss_conf.use_cts_prot, | |
773 | vif->bss_conf.ht_operation_mode); | |
774 | if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) | |
8ca151b5 | 775 | cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN); |
8a5e3660 AA |
776 | if (ht_enabled) |
777 | iwl_mvm_mac_ctxt_set_ht_flags(mvm, vif, cmd); | |
8ca151b5 JB |
778 | } |
779 | ||
780 | static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, | |
781 | struct iwl_mac_ctx_cmd *cmd) | |
782 | { | |
a1022927 | 783 | int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, |
8ca151b5 JB |
784 | sizeof(*cmd), cmd); |
785 | if (ret) | |
786 | IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n", | |
787 | le32_to_cpu(cmd->action), ret); | |
788 | return ret; | |
789 | } | |
790 | ||
cf52023c LC |
791 | static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, |
792 | struct ieee80211_vif *vif, | |
3dfd3a97 JB |
793 | u32 action, bool force_assoc_off, |
794 | const u8 *bssid_override) | |
8ca151b5 | 795 | { |
cf52023c LC |
796 | struct iwl_mac_ctx_cmd cmd = {}; |
797 | struct iwl_mac_data_sta *ctxt_sta; | |
798 | ||
799 | WARN_ON(vif->type != NL80211_IFTYPE_STATION); | |
800 | ||
801 | /* Fill the common data for all mac context types */ | |
3dfd3a97 | 802 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, bssid_override, action); |
cf52023c LC |
803 | |
804 | if (vif->p2p) { | |
805 | struct ieee80211_p2p_noa_attr *noa = | |
806 | &vif->bss_conf.p2p_noa_attr; | |
807 | ||
808 | cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & | |
809 | IEEE80211_P2P_OPPPS_CTWINDOW_MASK); | |
810 | ctxt_sta = &cmd.p2p_sta.sta; | |
811 | } else { | |
cf52023c LC |
812 | ctxt_sta = &cmd.sta; |
813 | } | |
814 | ||
210a544e | 815 | /* We need the dtim_period to set the MAC as associated */ |
ba283927 AB |
816 | if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && |
817 | !force_assoc_off) { | |
d2931bbd JB |
818 | u32 dtim_offs; |
819 | ||
820 | /* | |
821 | * The DTIM count counts down, so when it is N that means N | |
822 | * more beacon intervals happen until the DTIM TBTT. Therefore | |
823 | * add this to the current time. If that ends up being in the | |
824 | * future, the firmware will handle it. | |
825 | * | |
826 | * Also note that the system_timestamp (which we get here as | |
827 | * "sync_device_ts") and TSF timestamp aren't at exactly the | |
828 | * same offset in the frame -- the TSF is at the first symbol | |
829 | * of the TSF, the system timestamp is at signal acquisition | |
830 | * time. This means there's an offset between them of at most | |
831 | * a few hundred microseconds (24 * 8 bits + PLCP time gives | |
832 | * 384us in the longest case), this is currently not relevant | |
833 | * as the firmware wakes up around 2ms before the TBTT. | |
834 | */ | |
835 | dtim_offs = vif->bss_conf.sync_dtim_count * | |
836 | vif->bss_conf.beacon_int; | |
837 | /* convert TU to usecs */ | |
838 | dtim_offs *= 1024; | |
839 | ||
840 | ctxt_sta->dtim_tsf = | |
841 | cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs); | |
842 | ctxt_sta->dtim_time = | |
843 | cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs); | |
844 | ||
845 | IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n", | |
846 | le64_to_cpu(ctxt_sta->dtim_tsf), | |
847 | le32_to_cpu(ctxt_sta->dtim_time), | |
848 | dtim_offs); | |
849 | ||
210a544e | 850 | ctxt_sta->is_assoc = cpu_to_le32(1); |
d2931bbd | 851 | } else { |
210a544e | 852 | ctxt_sta->is_assoc = cpu_to_le32(0); |
7c8b3bc6 LC |
853 | |
854 | /* Allow beacons to pass through as long as we are not | |
855 | * associated, or we do not have dtim period information. | |
856 | */ | |
857 | cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); | |
d2931bbd | 858 | } |
8ca151b5 JB |
859 | |
860 | ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int); | |
861 | ctxt_sta->bi_reciprocal = | |
862 | cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); | |
863 | ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * | |
864 | vif->bss_conf.dtim_period); | |
865 | ctxt_sta->dtim_reciprocal = | |
866 | cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * | |
867 | vif->bss_conf.dtim_period)); | |
868 | ||
869 | ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval); | |
870 | ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid); | |
8ca151b5 | 871 | |
effd1929 AO |
872 | if (vif->probe_req_reg && vif->bss_conf.assoc && vif->p2p) |
873 | cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); | |
874 | ||
8ca151b5 JB |
875 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
876 | } | |
877 | ||
878 | static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, | |
879 | struct ieee80211_vif *vif, | |
880 | u32 action) | |
881 | { | |
882 | struct iwl_mac_ctx_cmd cmd = {}; | |
0e39eb03 CRI |
883 | u32 tfd_queue_msk = 0; |
884 | int ret, i; | |
8ca151b5 JB |
885 | |
886 | WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); | |
887 | ||
3dfd3a97 | 888 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
53585495 | 889 | |
737847aa LK |
890 | if (!iwl_mvm_is_dqa_supported(mvm)) { |
891 | for (i = 0; i < IEEE80211_NUM_ACS; i++) | |
892 | if (vif->hw_queue[i] != IEEE80211_INVAL_HW_QUEUE) | |
893 | tfd_queue_msk |= BIT(vif->hw_queue[i]); | |
894 | } | |
0e39eb03 | 895 | |
53585495 JB |
896 | cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | |
897 | MAC_FILTER_IN_CONTROL_AND_MGMT | | |
898 | MAC_FILTER_IN_BEACON | | |
fb8b8ee1 JB |
899 | MAC_FILTER_IN_PROBE_REQUEST | |
900 | MAC_FILTER_IN_CRC32); | |
30686bf7 | 901 | ieee80211_hw_set(mvm->hw, RX_INCLUDES_FCS); |
53585495 | 902 | |
0e39eb03 CRI |
903 | /* Allocate sniffer station */ |
904 | ret = iwl_mvm_allocate_int_sta(mvm, &mvm->snif_sta, tfd_queue_msk, | |
905 | vif->type); | |
906 | if (ret) | |
907 | return ret; | |
908 | ||
8ca151b5 JB |
909 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
910 | } | |
911 | ||
5023d966 JB |
912 | static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm, |
913 | struct ieee80211_vif *vif, | |
914 | u32 action) | |
915 | { | |
916 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
917 | struct iwl_mac_ctx_cmd cmd = {}; | |
918 | ||
919 | WARN_ON(vif->type != NL80211_IFTYPE_ADHOC); | |
920 | ||
3dfd3a97 | 921 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
5023d966 JB |
922 | |
923 | cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON | | |
924 | MAC_FILTER_IN_PROBE_REQUEST); | |
925 | ||
926 | /* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */ | |
927 | cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int); | |
928 | cmd.ibss.bi_reciprocal = | |
929 | cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); | |
930 | ||
931 | /* TODO: Assumes that the beacon id == mac context id */ | |
932 | cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id); | |
933 | ||
934 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); | |
935 | } | |
936 | ||
8ca151b5 JB |
937 | struct iwl_mvm_go_iterator_data { |
938 | bool go_active; | |
939 | }; | |
940 | ||
941 | static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) | |
942 | { | |
943 | struct iwl_mvm_go_iterator_data *data = _data; | |
944 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
945 | ||
5023d966 JB |
946 | if (vif->type == NL80211_IFTYPE_AP && vif->p2p && |
947 | mvmvif->ap_ibss_active) | |
8ca151b5 JB |
948 | data->go_active = true; |
949 | } | |
950 | ||
951 | static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm, | |
952 | struct ieee80211_vif *vif, | |
953 | u32 action) | |
954 | { | |
955 | struct iwl_mac_ctx_cmd cmd = {}; | |
956 | struct iwl_mvm_go_iterator_data data = {}; | |
957 | ||
958 | WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE); | |
959 | ||
3dfd3a97 | 960 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
8ca151b5 JB |
961 | |
962 | cmd.protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); | |
1dcd15ee IP |
963 | |
964 | /* Override the filter flags to accept only probe requests */ | |
965 | cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); | |
8ca151b5 JB |
966 | |
967 | /* | |
968 | * This flag should be set to true when the P2P Device is | |
969 | * discoverable and there is at least another active P2P GO. Settings | |
970 | * this flag will allow the P2P Device to be discoverable on other | |
971 | * channels in addition to its listen channel. | |
972 | * Note that this flag should not be set in other cases as it opens the | |
973 | * Rx filters on all MAC and increases the number of interrupts. | |
974 | */ | |
975 | ieee80211_iterate_active_interfaces_atomic( | |
976 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
977 | iwl_mvm_go_iterator, &data); | |
978 | ||
979 | cmd.p2p_dev.is_disc_extended = cpu_to_le32(data.go_active ? 1 : 0); | |
980 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); | |
981 | } | |
982 | ||
983 | static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, | |
8364fbb4 | 984 | __le32 *tim_index, __le32 *tim_size, |
8ca151b5 JB |
985 | u8 *beacon, u32 frame_size) |
986 | { | |
987 | u32 tim_idx; | |
988 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; | |
989 | ||
990 | /* The index is relative to frame start but we start looking at the | |
991 | * variable-length part of the beacon. */ | |
992 | tim_idx = mgmt->u.beacon.variable - beacon; | |
993 | ||
994 | /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ | |
995 | while ((tim_idx < (frame_size - 2)) && | |
996 | (beacon[tim_idx] != WLAN_EID_TIM)) | |
997 | tim_idx += beacon[tim_idx+1] + 2; | |
998 | ||
999 | /* If TIM field was found, set variables */ | |
1000 | if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { | |
8364fbb4 SS |
1001 | *tim_index = cpu_to_le32(tim_idx); |
1002 | *tim_size = cpu_to_le32((u32)beacon[tim_idx + 1]); | |
8ca151b5 JB |
1003 | } else { |
1004 | IWL_WARN(mvm, "Unable to find TIM Element in beacon\n"); | |
1005 | } | |
1006 | } | |
1007 | ||
d3a108a4 AO |
1008 | static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) |
1009 | { | |
1010 | struct ieee80211_mgmt *mgmt = (void *)beacon; | |
1011 | const u8 *ie; | |
1012 | ||
1013 | if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon))) | |
1014 | return 0; | |
1015 | ||
1016 | frame_size -= mgmt->u.beacon.variable - beacon; | |
1017 | ||
1018 | ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size); | |
1019 | if (!ie) | |
1020 | return 0; | |
1021 | ||
1022 | return ie - beacon; | |
1023 | } | |
1024 | ||
8ca151b5 JB |
1025 | static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, |
1026 | struct ieee80211_vif *vif, | |
1027 | struct sk_buff *beacon) | |
1028 | { | |
1029 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1030 | struct iwl_host_cmd cmd = { | |
1031 | .id = BEACON_TEMPLATE_CMD, | |
1032 | .flags = CMD_ASYNC, | |
1033 | }; | |
d3a108a4 AO |
1034 | union { |
1035 | struct iwl_mac_beacon_cmd_v6 beacon_cmd_v6; | |
8364fbb4 | 1036 | struct iwl_mac_beacon_cmd_v7 beacon_cmd; |
d3a108a4 | 1037 | } u = {}; |
8364fbb4 | 1038 | struct iwl_mac_beacon_cmd beacon_cmd; |
8ca151b5 JB |
1039 | struct ieee80211_tx_info *info; |
1040 | u32 beacon_skb_len; | |
75f6b9b6 | 1041 | u32 rate, tx_flags; |
8ca151b5 JB |
1042 | |
1043 | if (WARN_ON(!beacon)) | |
1044 | return -EINVAL; | |
1045 | ||
1046 | beacon_skb_len = beacon->len; | |
1047 | ||
8364fbb4 SS |
1048 | if (fw_has_capa(&mvm->fw->ucode_capa, |
1049 | IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD)) { | |
1050 | u32 csa_offset, ecsa_offset; | |
1051 | ||
1052 | csa_offset = iwl_mvm_find_ie_offset(beacon->data, | |
1053 | WLAN_EID_CHANNEL_SWITCH, | |
1054 | beacon_skb_len); | |
1055 | ecsa_offset = | |
1056 | iwl_mvm_find_ie_offset(beacon->data, | |
1057 | WLAN_EID_EXT_CHANSWITCH_ANN, | |
1058 | beacon_skb_len); | |
1059 | ||
1060 | if (iwl_mvm_has_new_tx_api(mvm)) { | |
1061 | beacon_cmd.data.template_id = | |
1062 | cpu_to_le32((u32)mvmvif->id); | |
1063 | beacon_cmd.data.ecsa_offset = cpu_to_le32(ecsa_offset); | |
1064 | beacon_cmd.data.csa_offset = cpu_to_le32(csa_offset); | |
1065 | beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon_skb_len); | |
1066 | if (vif->type == NL80211_IFTYPE_AP) | |
1067 | iwl_mvm_mac_ctxt_set_tim(mvm, | |
1068 | &beacon_cmd.data.tim_idx, | |
1069 | &beacon_cmd.data.tim_size, | |
1070 | beacon->data, | |
1071 | beacon_skb_len); | |
1072 | cmd.len[0] = sizeof(beacon_cmd); | |
1073 | cmd.data[0] = &beacon_cmd; | |
1074 | goto send; | |
1075 | ||
1076 | } else { | |
1077 | u.beacon_cmd.data.ecsa_offset = | |
1078 | cpu_to_le32(ecsa_offset); | |
1079 | u.beacon_cmd.data.csa_offset = cpu_to_le32(csa_offset); | |
1080 | cmd.len[0] = sizeof(u.beacon_cmd); | |
1081 | cmd.data[0] = &u; | |
1082 | } | |
1083 | } else { | |
1084 | cmd.len[0] = sizeof(u.beacon_cmd_v6); | |
1085 | cmd.data[0] = &u; | |
1086 | } | |
1087 | ||
8ca151b5 JB |
1088 | /* TODO: for now the beacon template id is set to be the mac context id. |
1089 | * Might be better to handle it as another resource ... */ | |
d3a108a4 | 1090 | u.beacon_cmd_v6.template_id = cpu_to_le32((u32)mvmvif->id); |
75f6b9b6 | 1091 | info = IEEE80211_SKB_CB(beacon); |
8ca151b5 JB |
1092 | |
1093 | /* Set up TX command fields */ | |
d3a108a4 AO |
1094 | u.beacon_cmd_v6.tx.len = cpu_to_le16((u16)beacon_skb_len); |
1095 | u.beacon_cmd_v6.tx.sta_id = mvmvif->bcast_sta.sta_id; | |
1096 | u.beacon_cmd_v6.tx.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); | |
75f6b9b6 EG |
1097 | tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; |
1098 | tx_flags |= | |
1099 | iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << | |
1100 | TX_CMD_FLG_BT_PRIO_POS; | |
d3a108a4 | 1101 | u.beacon_cmd_v6.tx.tx_flags = cpu_to_le32(tx_flags); |
8ca151b5 | 1102 | |
1e3c3c35 EG |
1103 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
1104 | IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) { | |
1105 | mvm->mgmt_last_antenna_idx = | |
1106 | iwl_mvm_next_antenna(mvm, iwl_mvm_get_valid_tx_ant(mvm), | |
1107 | mvm->mgmt_last_antenna_idx); | |
1108 | } | |
8ca151b5 | 1109 | |
d3a108a4 | 1110 | u.beacon_cmd_v6.tx.rate_n_flags = |
8ca151b5 JB |
1111 | cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << |
1112 | RATE_MCS_ANT_POS); | |
1113 | ||
57fbcce3 | 1114 | if (info->band == NL80211_BAND_5GHZ || vif->p2p) { |
8ca151b5 JB |
1115 | rate = IWL_FIRST_OFDM_RATE; |
1116 | } else { | |
1117 | rate = IWL_FIRST_CCK_RATE; | |
d3a108a4 AO |
1118 | u.beacon_cmd_v6.tx.rate_n_flags |= |
1119 | cpu_to_le32(RATE_MCS_CCK_MSK); | |
8ca151b5 | 1120 | } |
d3a108a4 | 1121 | u.beacon_cmd_v6.tx.rate_n_flags |= |
8ca151b5 JB |
1122 | cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); |
1123 | ||
1124 | /* Set up TX beacon command fields */ | |
5023d966 | 1125 | if (vif->type == NL80211_IFTYPE_AP) |
8364fbb4 SS |
1126 | iwl_mvm_mac_ctxt_set_tim(mvm, &u.beacon_cmd_v6.tim_idx, |
1127 | &u.beacon_cmd_v6.tim_size, | |
5023d966 JB |
1128 | beacon->data, |
1129 | beacon_skb_len); | |
8ca151b5 | 1130 | |
8364fbb4 | 1131 | send: |
8ca151b5 | 1132 | /* Submit command */ |
8ca151b5 JB |
1133 | cmd.dataflags[0] = 0; |
1134 | cmd.len[1] = beacon_skb_len; | |
1135 | cmd.data[1] = beacon->data; | |
1136 | cmd.dataflags[1] = IWL_HCMD_DFL_DUP; | |
1137 | ||
1138 | return iwl_mvm_send_cmd(mvm, &cmd); | |
1139 | } | |
1140 | ||
5023d966 | 1141 | /* The beacon template for the AP/GO/IBSS has changed and needs update */ |
8ca151b5 JB |
1142 | int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, |
1143 | struct ieee80211_vif *vif) | |
1144 | { | |
1145 | struct sk_buff *beacon; | |
1146 | int ret; | |
1147 | ||
5023d966 JB |
1148 | WARN_ON(vif->type != NL80211_IFTYPE_AP && |
1149 | vif->type != NL80211_IFTYPE_ADHOC); | |
8ca151b5 | 1150 | |
fe887665 | 1151 | beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); |
8ca151b5 JB |
1152 | if (!beacon) |
1153 | return -ENOMEM; | |
1154 | ||
1155 | ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon); | |
1156 | dev_kfree_skb(beacon); | |
1157 | return ret; | |
1158 | } | |
1159 | ||
3a3cb92e IP |
1160 | struct iwl_mvm_mac_ap_iterator_data { |
1161 | struct iwl_mvm *mvm; | |
1162 | struct ieee80211_vif *vif; | |
1163 | u32 beacon_device_ts; | |
1164 | u16 beacon_int; | |
1165 | }; | |
1166 | ||
1167 | /* Find the beacon_device_ts and beacon_int for a managed interface */ | |
1168 | static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac, | |
1169 | struct ieee80211_vif *vif) | |
1170 | { | |
1171 | struct iwl_mvm_mac_ap_iterator_data *data = _data; | |
1172 | ||
1173 | if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) | |
1174 | return; | |
1175 | ||
1176 | /* Station client has higher priority over P2P client*/ | |
1177 | if (vif->p2p && data->beacon_device_ts) | |
1178 | return; | |
1179 | ||
1180 | data->beacon_device_ts = vif->bss_conf.sync_device_ts; | |
1181 | data->beacon_int = vif->bss_conf.beacon_int; | |
1182 | } | |
1183 | ||
8ca151b5 JB |
1184 | /* |
1185 | * Fill the specific data for mac context of type AP of P2P GO | |
1186 | */ | |
1187 | static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, | |
1188 | struct ieee80211_vif *vif, | |
186cd49a | 1189 | struct iwl_mac_ctx_cmd *cmd, |
506a81e6 JB |
1190 | struct iwl_mac_data_ap *ctxt_ap, |
1191 | bool add) | |
8ca151b5 JB |
1192 | { |
1193 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3a3cb92e IP |
1194 | struct iwl_mvm_mac_ap_iterator_data data = { |
1195 | .mvm = mvm, | |
1196 | .vif = vif, | |
1197 | .beacon_device_ts = 0 | |
1198 | }; | |
8ca151b5 | 1199 | |
186cd49a JB |
1200 | /* in AP mode, the MCAST FIFO takes the EDCA params from VO */ |
1201 | cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST); | |
1202 | ||
1203 | /* | |
1204 | * in AP mode, pass probe requests and beacons from other APs | |
1205 | * (needed for ht protection); when there're no any associated | |
1206 | * station don't ask FW to pass beacons to prevent unnecessary | |
1207 | * wake-ups. | |
1208 | */ | |
1209 | cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); | |
1210 | if (mvmvif->ap_assoc_sta_count || !mvm->drop_bcn_ap_mode) { | |
1211 | cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); | |
1212 | IWL_DEBUG_HC(mvm, "Asking FW to pass beacons\n"); | |
1213 | } else { | |
1214 | IWL_DEBUG_HC(mvm, "No need to receive beacons\n"); | |
1215 | } | |
1216 | ||
8ca151b5 JB |
1217 | ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int); |
1218 | ctxt_ap->bi_reciprocal = | |
1219 | cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); | |
1220 | ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * | |
1221 | vif->bss_conf.dtim_period); | |
1222 | ctxt_ap->dtim_reciprocal = | |
1223 | cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int * | |
1224 | vif->bss_conf.dtim_period)); | |
1225 | ||
1226 | ctxt_ap->mcast_qid = cpu_to_le32(vif->cab_queue); | |
8ca151b5 | 1227 | |
506a81e6 | 1228 | /* |
3a3cb92e | 1229 | * Only set the beacon time when the MAC is being added, when we |
506a81e6 JB |
1230 | * just modify the MAC then we should keep the time -- the firmware |
1231 | * can otherwise have a "jumping" TBTT. | |
1232 | */ | |
3a3cb92e IP |
1233 | if (add) { |
1234 | /* | |
1235 | * If there is a station/P2P client interface which is | |
1236 | * associated, set the AP's TBTT far enough from the station's | |
1237 | * TBTT. Otherwise, set it to the current system time | |
1238 | */ | |
1239 | ieee80211_iterate_active_interfaces_atomic( | |
1240 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
1241 | iwl_mvm_mac_ap_iterator, &data); | |
1242 | ||
1243 | if (data.beacon_device_ts) { | |
9f8f8ca5 | 1244 | u32 rand = (prandom_u32() % (64 - 36)) + 36; |
3a3cb92e IP |
1245 | mvmvif->ap_beacon_time = data.beacon_device_ts + |
1246 | ieee80211_tu_to_usec(data.beacon_int * rand / | |
1247 | 100); | |
1248 | } else { | |
1249 | mvmvif->ap_beacon_time = | |
1250 | iwl_read_prph(mvm->trans, | |
1251 | DEVICE_SYSTEM_TIME_REG); | |
1252 | } | |
1253 | } | |
506a81e6 JB |
1254 | |
1255 | ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time); | |
506a81e6 | 1256 | ctxt_ap->beacon_tsf = 0; /* unused */ |
8ca151b5 JB |
1257 | |
1258 | /* TODO: Assume that the beacon id == mac context id */ | |
1259 | ctxt_ap->beacon_template = cpu_to_le32(mvmvif->id); | |
1260 | } | |
1261 | ||
f82c8339 IP |
1262 | static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm, |
1263 | struct ieee80211_vif *vif, | |
1264 | u32 action) | |
8ca151b5 JB |
1265 | { |
1266 | struct iwl_mac_ctx_cmd cmd = {}; | |
1267 | ||
1268 | WARN_ON(vif->type != NL80211_IFTYPE_AP || vif->p2p); | |
1269 | ||
1270 | /* Fill the common data for all mac context types */ | |
3dfd3a97 | 1271 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
8ca151b5 JB |
1272 | |
1273 | /* Fill the data specific for ap mode */ | |
186cd49a | 1274 | iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.ap, |
506a81e6 | 1275 | action == FW_CTXT_ACTION_ADD); |
8ca151b5 JB |
1276 | |
1277 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); | |
1278 | } | |
1279 | ||
1280 | static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, | |
1281 | struct ieee80211_vif *vif, | |
1282 | u32 action) | |
1283 | { | |
1284 | struct iwl_mac_ctx_cmd cmd = {}; | |
67baf663 | 1285 | struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr; |
8ca151b5 JB |
1286 | |
1287 | WARN_ON(vif->type != NL80211_IFTYPE_AP || !vif->p2p); | |
1288 | ||
1289 | /* Fill the common data for all mac context types */ | |
3dfd3a97 | 1290 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
8ca151b5 JB |
1291 | |
1292 | /* Fill the data specific for GO mode */ | |
186cd49a | 1293 | iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.go.ap, |
506a81e6 | 1294 | action == FW_CTXT_ACTION_ADD); |
8ca151b5 | 1295 | |
67baf663 JD |
1296 | cmd.go.ctwin = cpu_to_le32(noa->oppps_ctwindow & |
1297 | IEEE80211_P2P_OPPPS_CTWINDOW_MASK); | |
1298 | cmd.go.opp_ps_enabled = | |
1299 | cpu_to_le32(!!(noa->oppps_ctwindow & | |
1300 | IEEE80211_P2P_OPPPS_ENABLE_BIT)); | |
8ca151b5 JB |
1301 | |
1302 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); | |
1303 | } | |
1304 | ||
1305 | static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
3dfd3a97 JB |
1306 | u32 action, bool force_assoc_off, |
1307 | const u8 *bssid_override) | |
8ca151b5 JB |
1308 | { |
1309 | switch (vif->type) { | |
1310 | case NL80211_IFTYPE_STATION: | |
cf52023c | 1311 | return iwl_mvm_mac_ctxt_cmd_sta(mvm, vif, action, |
3dfd3a97 JB |
1312 | force_assoc_off, |
1313 | bssid_override); | |
8ca151b5 JB |
1314 | break; |
1315 | case NL80211_IFTYPE_AP: | |
1316 | if (!vif->p2p) | |
1317 | return iwl_mvm_mac_ctxt_cmd_ap(mvm, vif, action); | |
1318 | else | |
1319 | return iwl_mvm_mac_ctxt_cmd_go(mvm, vif, action); | |
1320 | break; | |
1321 | case NL80211_IFTYPE_MONITOR: | |
1322 | return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action); | |
1323 | case NL80211_IFTYPE_P2P_DEVICE: | |
1324 | return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action); | |
5023d966 JB |
1325 | case NL80211_IFTYPE_ADHOC: |
1326 | return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action); | |
8ca151b5 JB |
1327 | default: |
1328 | break; | |
1329 | } | |
1330 | ||
1331 | return -EOPNOTSUPP; | |
1332 | } | |
1333 | ||
1334 | int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
1335 | { | |
1336 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1337 | int ret; | |
1338 | ||
1339 | if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n", | |
1340 | vif->addr, ieee80211_vif_type_p2p(vif))) | |
1341 | return -EIO; | |
1342 | ||
bca49d9a | 1343 | ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD, |
3dfd3a97 | 1344 | true, NULL); |
8ca151b5 JB |
1345 | if (ret) |
1346 | return ret; | |
1347 | ||
6d9d32b8 JB |
1348 | /* will only do anything at resume from D3 time */ |
1349 | iwl_mvm_set_last_nonqos_seq(mvm, vif); | |
1350 | ||
8ca151b5 JB |
1351 | mvmvif->uploaded = true; |
1352 | return 0; | |
1353 | } | |
1354 | ||
bca49d9a | 1355 | int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
3dfd3a97 | 1356 | bool force_assoc_off, const u8 *bssid_override) |
8ca151b5 JB |
1357 | { |
1358 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1359 | ||
1360 | if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n", | |
1361 | vif->addr, ieee80211_vif_type_p2p(vif))) | |
1362 | return -EIO; | |
1363 | ||
bca49d9a | 1364 | return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY, |
3dfd3a97 | 1365 | force_assoc_off, bssid_override); |
8ca151b5 JB |
1366 | } |
1367 | ||
1368 | int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
1369 | { | |
1370 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1371 | struct iwl_mac_ctx_cmd cmd; | |
1372 | int ret; | |
1373 | ||
1374 | if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n", | |
1375 | vif->addr, ieee80211_vif_type_p2p(vif))) | |
1376 | return -EIO; | |
1377 | ||
1378 | memset(&cmd, 0, sizeof(cmd)); | |
1379 | ||
1380 | cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
1381 | mvmvif->color)); | |
1382 | cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); | |
1383 | ||
a1022927 | 1384 | ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, |
8ca151b5 JB |
1385 | sizeof(cmd), &cmd); |
1386 | if (ret) { | |
1387 | IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret); | |
1388 | return ret; | |
1389 | } | |
1390 | ||
1391 | mvmvif->uploaded = false; | |
fb8b8ee1 | 1392 | |
0e39eb03 | 1393 | if (vif->type == NL80211_IFTYPE_MONITOR) { |
30686bf7 | 1394 | __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, mvm->hw->flags); |
0e39eb03 CRI |
1395 | iwl_mvm_dealloc_snif_sta(mvm); |
1396 | } | |
fb8b8ee1 | 1397 | |
8ca151b5 JB |
1398 | return 0; |
1399 | } | |
571765c8 | 1400 | |
7f0a7c67 | 1401 | static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, |
7ef0aab6 AO |
1402 | struct ieee80211_vif *csa_vif, u32 gp2, |
1403 | bool tx_success) | |
7f0a7c67 AO |
1404 | { |
1405 | struct iwl_mvm_vif *mvmvif = | |
1406 | iwl_mvm_vif_from_mac80211(csa_vif); | |
1407 | ||
7ef0aab6 AO |
1408 | /* Don't start to countdown from a failed beacon */ |
1409 | if (!tx_success && !mvmvif->csa_countdown) | |
1410 | return; | |
1411 | ||
1412 | mvmvif->csa_countdown = true; | |
1413 | ||
7f0a7c67 AO |
1414 | if (!ieee80211_csa_is_complete(csa_vif)) { |
1415 | int c = ieee80211_csa_update_counter(csa_vif); | |
1416 | ||
1417 | iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif); | |
1418 | if (csa_vif->p2p && | |
7ef0aab6 AO |
1419 | !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2 && |
1420 | tx_success) { | |
7f0a7c67 AO |
1421 | u32 rel_time = (c + 1) * |
1422 | csa_vif->bss_conf.beacon_int - | |
f991e17b | 1423 | IWL_MVM_CHANNEL_SWITCH_TIME_GO; |
7f0a7c67 AO |
1424 | u32 apply_time = gp2 + rel_time * 1024; |
1425 | ||
f991e17b LC |
1426 | iwl_mvm_schedule_csa_period(mvm, csa_vif, |
1427 | IWL_MVM_CHANNEL_SWITCH_TIME_GO - | |
1428 | IWL_MVM_CHANNEL_SWITCH_MARGIN, | |
1429 | apply_time); | |
7f0a7c67 AO |
1430 | } |
1431 | } else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { | |
1432 | /* we don't have CSA NoA scheduled yet, switch now */ | |
1433 | ieee80211_csa_finish(csa_vif); | |
1434 | RCU_INIT_POINTER(mvm->csa_vif, NULL); | |
1435 | } | |
1436 | } | |
1437 | ||
0416841d JB |
1438 | void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, |
1439 | struct iwl_rx_cmd_buffer *rxb) | |
571765c8 IP |
1440 | { |
1441 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
2d2c0e9c | 1442 | struct iwl_extended_beacon_notif *beacon = (void *)pkt->data; |
1c87bbad | 1443 | struct iwl_mvm_tx_resp *beacon_notify_hdr; |
664322fa | 1444 | struct ieee80211_vif *csa_vif; |
003e5236 | 1445 | struct ieee80211_vif *tx_blocked_vif; |
7ef0aab6 | 1446 | u16 status; |
571765c8 | 1447 | |
bd3398e2 AO |
1448 | lockdep_assert_held(&mvm->mutex); |
1449 | ||
2d2c0e9c EG |
1450 | beacon_notify_hdr = &beacon->beacon_notify_hdr; |
1451 | mvm->ap_last_beacon_gp2 = le32_to_cpu(beacon->gp2); | |
1c87bbad | 1452 | |
7ef0aab6 | 1453 | status = le16_to_cpu(beacon_notify_hdr->status.status) & TX_STATUS_MSK; |
1c87bbad DS |
1454 | IWL_DEBUG_RX(mvm, |
1455 | "beacon status %#x retries:%d tsf:0x%16llX gp2:0x%X rate:%d\n", | |
2d2c0e9c EG |
1456 | status, beacon_notify_hdr->failure_frame, |
1457 | le64_to_cpu(beacon->tsf), | |
1c87bbad DS |
1458 | mvm->ap_last_beacon_gp2, |
1459 | le32_to_cpu(beacon_notify_hdr->initial_rate)); | |
bd3398e2 | 1460 | |
664322fa AO |
1461 | csa_vif = rcu_dereference_protected(mvm->csa_vif, |
1462 | lockdep_is_held(&mvm->mutex)); | |
7f0a7c67 | 1463 | if (unlikely(csa_vif && csa_vif->csa_active)) |
7ef0aab6 AO |
1464 | iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2, |
1465 | (status == TX_STATUS_SUCCESS)); | |
bd3398e2 | 1466 | |
003e5236 AO |
1467 | tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, |
1468 | lockdep_is_held(&mvm->mutex)); | |
1469 | if (unlikely(tx_blocked_vif)) { | |
1470 | struct iwl_mvm_vif *mvmvif = | |
1471 | iwl_mvm_vif_from_mac80211(tx_blocked_vif); | |
1472 | ||
1473 | /* | |
1474 | * The channel switch is started and we have blocked the | |
1475 | * stations. If this is the first beacon (the timeout wasn't | |
1476 | * set), set the unblock timeout, otherwise countdown | |
1477 | */ | |
1478 | if (!mvm->csa_tx_block_bcn_timeout) | |
1479 | mvm->csa_tx_block_bcn_timeout = | |
1480 | IWL_MVM_CS_UNBLOCK_TX_TIMEOUT; | |
1481 | else | |
1482 | mvm->csa_tx_block_bcn_timeout--; | |
1483 | ||
1484 | /* Check if the timeout is expired, and unblock tx */ | |
1485 | if (mvm->csa_tx_block_bcn_timeout == 0) { | |
1486 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); | |
1487 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
1488 | } | |
1489 | } | |
571765c8 | 1490 | } |
d64048ed HG |
1491 | |
1492 | static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac, | |
1493 | struct ieee80211_vif *vif) | |
1494 | { | |
12d423e8 | 1495 | struct iwl_missed_beacons_notif *missed_beacons = _data; |
d64048ed | 1496 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
9d761fd8 EG |
1497 | struct iwl_mvm *mvm = mvmvif->mvm; |
1498 | struct iwl_fw_dbg_trigger_missed_bcon *bcon_trig; | |
1499 | struct iwl_fw_dbg_trigger_tlv *trigger; | |
1500 | u32 stop_trig_missed_bcon, stop_trig_missed_bcon_since_rx; | |
1501 | u32 rx_missed_bcon, rx_missed_bcon_since_rx; | |
d64048ed | 1502 | |
12d423e8 IP |
1503 | if (mvmvif->id != (u16)le32_to_cpu(missed_beacons->mac_id)) |
1504 | return; | |
1505 | ||
9d761fd8 EG |
1506 | rx_missed_bcon = le32_to_cpu(missed_beacons->consec_missed_beacons); |
1507 | rx_missed_bcon_since_rx = | |
1508 | le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx); | |
12d423e8 IP |
1509 | /* |
1510 | * TODO: the threshold should be adjusted based on latency conditions, | |
1511 | * and/or in case of a CS flow on one of the other AP vifs. | |
1512 | */ | |
1513 | if (le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx) > | |
1514 | IWL_MVM_MISSED_BEACONS_THRESHOLD) | |
d64048ed | 1515 | ieee80211_beacon_loss(vif); |
9d761fd8 EG |
1516 | |
1517 | if (!iwl_fw_dbg_trigger_enabled(mvm->fw, | |
1518 | FW_DBG_TRIGGER_MISSED_BEACONS)) | |
1519 | return; | |
1520 | ||
1521 | trigger = iwl_fw_dbg_get_trigger(mvm->fw, | |
1522 | FW_DBG_TRIGGER_MISSED_BEACONS); | |
1523 | bcon_trig = (void *)trigger->data; | |
1524 | stop_trig_missed_bcon = le32_to_cpu(bcon_trig->stop_consec_missed_bcon); | |
1525 | stop_trig_missed_bcon_since_rx = | |
1526 | le32_to_cpu(bcon_trig->stop_consec_missed_bcon_since_rx); | |
1527 | ||
1528 | /* TODO: implement start trigger */ | |
1529 | ||
1530 | if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trigger)) | |
1531 | return; | |
1532 | ||
1533 | if (rx_missed_bcon_since_rx >= stop_trig_missed_bcon_since_rx || | |
1534 | rx_missed_bcon >= stop_trig_missed_bcon) | |
5d4f929e | 1535 | iwl_mvm_fw_dbg_collect_trig(mvm, trigger, NULL); |
d64048ed HG |
1536 | } |
1537 | ||
0416841d JB |
1538 | void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, |
1539 | struct iwl_rx_cmd_buffer *rxb) | |
d64048ed HG |
1540 | { |
1541 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
12d423e8 IP |
1542 | struct iwl_missed_beacons_notif *mb = (void *)pkt->data; |
1543 | ||
1544 | IWL_DEBUG_INFO(mvm, | |
1545 | "missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n", | |
1546 | le32_to_cpu(mb->mac_id), | |
1547 | le32_to_cpu(mb->consec_missed_beacons), | |
1548 | le32_to_cpu(mb->consec_missed_beacons_since_last_rx), | |
1549 | le32_to_cpu(mb->num_recvd_beacons), | |
1550 | le32_to_cpu(mb->num_expected_beacons)); | |
d64048ed HG |
1551 | |
1552 | ieee80211_iterate_active_interfaces_atomic(mvm->hw, | |
1553 | IEEE80211_IFACE_ITER_NORMAL, | |
1554 | iwl_mvm_beacon_loss_iterator, | |
12d423e8 | 1555 | mb); |
d64048ed | 1556 | } |
0db056d3 SS |
1557 | |
1558 | void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm, | |
1559 | struct iwl_rx_cmd_buffer *rxb) | |
1560 | { | |
1561 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
1562 | struct iwl_stored_beacon_notif *sb = (void *)pkt->data; | |
1563 | struct ieee80211_rx_status rx_status; | |
1564 | struct sk_buff *skb; | |
1565 | u32 size = le32_to_cpu(sb->byte_count); | |
1566 | ||
1567 | if (size == 0) | |
1568 | return; | |
1569 | ||
1570 | skb = alloc_skb(size, GFP_ATOMIC); | |
1571 | if (!skb) { | |
1572 | IWL_ERR(mvm, "alloc_skb failed\n"); | |
1573 | return; | |
1574 | } | |
1575 | ||
1576 | /* update rx_status according to the notification's metadata */ | |
1577 | memset(&rx_status, 0, sizeof(rx_status)); | |
1578 | rx_status.mactime = le64_to_cpu(sb->tsf); | |
77fe7395 SS |
1579 | /* TSF as indicated by the firmware is at INA time */ |
1580 | rx_status.flag |= RX_FLAG_MACTIME_PLCP_START; | |
0db056d3 SS |
1581 | rx_status.device_timestamp = le32_to_cpu(sb->system_time); |
1582 | rx_status.band = | |
34118c25 | 1583 | (sb->band & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ? |
57fbcce3 | 1584 | NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; |
0db056d3 SS |
1585 | rx_status.freq = |
1586 | ieee80211_channel_to_frequency(le16_to_cpu(sb->channel), | |
1587 | rx_status.band); | |
1588 | ||
1589 | /* copy the data */ | |
1590 | memcpy(skb_put(skb, size), sb->data, size); | |
1591 | memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); | |
1592 | ||
1593 | /* pass it as regular rx to mac80211 */ | |
d63b548f | 1594 | ieee80211_rx_napi(mvm->hw, NULL, skb, NULL); |
0db056d3 | 1595 | } |
d3a108a4 AO |
1596 | |
1597 | void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, | |
1598 | struct iwl_rx_cmd_buffer *rxb) | |
1599 | { | |
1600 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
1601 | struct iwl_channel_switch_noa_notif *notif = (void *)pkt->data; | |
1602 | struct ieee80211_vif *csa_vif; | |
1603 | struct iwl_mvm_vif *mvmvif; | |
1604 | int len = iwl_rx_packet_payload_len(pkt); | |
1605 | u32 id_n_color; | |
1606 | ||
1607 | if (WARN_ON_ONCE(len < sizeof(*notif))) | |
1608 | return; | |
1609 | ||
1610 | rcu_read_lock(); | |
1611 | ||
1612 | csa_vif = rcu_dereference(mvm->csa_vif); | |
1613 | if (WARN_ON(!csa_vif || !csa_vif->csa_active)) | |
1614 | goto out_unlock; | |
1615 | ||
1616 | id_n_color = le32_to_cpu(notif->id_and_color); | |
1617 | ||
1618 | mvmvif = iwl_mvm_vif_from_mac80211(csa_vif); | |
1619 | if (WARN(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color) != id_n_color, | |
1620 | "channel switch noa notification on unexpected vif (csa_vif=%d, notif=%d)", | |
1621 | FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color), id_n_color)) | |
1622 | goto out_unlock; | |
1623 | ||
1624 | IWL_DEBUG_INFO(mvm, "Channel Switch Started Notification\n"); | |
1625 | ||
1626 | queue_delayed_work(system_wq, &mvm->cs_tx_unblock_dwork, | |
1627 | msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * | |
1628 | csa_vif->bss_conf.beacon_int)); | |
1629 | ||
1630 | ieee80211_csa_finish(csa_vif); | |
1631 | ||
1632 | rcu_read_unlock(); | |
1633 | ||
1634 | RCU_INIT_POINTER(mvm->csa_vif, NULL); | |
1635 | ||
1636 | return; | |
1637 | ||
1638 | out_unlock: | |
1639 | rcu_read_unlock(); | |
1640 | } |