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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 |
09856582 | 10 | * Copyright(c) 2015 - 2017 Intel Deutschland GmbH |
f6780614 | 11 | * Copyright(c) 2018 - 2019 Intel Corporation |
8ca151b5 JB |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of version 2 of the GNU General Public License as | |
15 | * published by the Free Software Foundation. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, but | |
18 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
20 | * General Public License for more details. | |
21 | * | |
8ca151b5 | 22 | * The full GNU General Public License is included in this distribution |
410dc5aa | 23 | * in the file called COPYING. |
8ca151b5 JB |
24 | * |
25 | * Contact Information: | |
cb2f8277 | 26 | * Intel Linux Wireless <linuxwifi@intel.com> |
8ca151b5 JB |
27 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
28 | * | |
29 | * BSD LICENSE | |
30 | * | |
51368bf7 | 31 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
8b4139dc | 32 | * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH |
09856582 | 33 | * Copyright(c) 2015 - 2017 Intel Deutschland GmbH |
f6780614 | 34 | * Copyright(c) 2018 - 2019 Intel Corporation |
8ca151b5 JB |
35 | * All rights reserved. |
36 | * | |
37 | * Redistribution and use in source and binary forms, with or without | |
38 | * modification, are permitted provided that the following conditions | |
39 | * are met: | |
40 | * | |
41 | * * Redistributions of source code must retain the above copyright | |
42 | * notice, this list of conditions and the following disclaimer. | |
43 | * * Redistributions in binary form must reproduce the above copyright | |
44 | * notice, this list of conditions and the following disclaimer in | |
45 | * the documentation and/or other materials provided with the | |
46 | * distribution. | |
47 | * * Neither the name Intel Corporation nor the names of its | |
48 | * contributors may be used to endorse or promote products derived | |
49 | * from this software without specific prior written permission. | |
50 | * | |
51 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
52 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
53 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
54 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
55 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
56 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
57 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
58 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
59 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
60 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
61 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
62 | * | |
63 | *****************************************************************************/ | |
64 | ||
65 | #include <linux/etherdevice.h> | |
66 | #include <net/mac80211.h> | |
67 | #include "iwl-io.h" | |
68 | #include "iwl-prph.h" | |
69 | #include "fw-api.h" | |
70 | #include "mvm.h" | |
7f0a7c67 | 71 | #include "time-event.h" |
8ca151b5 JB |
72 | |
73 | const u8 iwl_mvm_ac_to_tx_fifo[] = { | |
8ca151b5 | 74 | IWL_MVM_TX_FIFO_VO, |
3dd94794 EG |
75 | IWL_MVM_TX_FIFO_VI, |
76 | IWL_MVM_TX_FIFO_BE, | |
77 | IWL_MVM_TX_FIFO_BK, | |
8ca151b5 JB |
78 | }; |
79 | ||
cf6c6ea3 EG |
80 | const u8 iwl_mvm_ac_to_gen2_tx_fifo[] = { |
81 | IWL_GEN2_EDCA_TX_FIFO_VO, | |
82 | IWL_GEN2_EDCA_TX_FIFO_VI, | |
83 | IWL_GEN2_EDCA_TX_FIFO_BE, | |
84 | IWL_GEN2_EDCA_TX_FIFO_BK, | |
7126b6f2 SS |
85 | IWL_GEN2_TRIG_TX_FIFO_VO, |
86 | IWL_GEN2_TRIG_TX_FIFO_VI, | |
87 | IWL_GEN2_TRIG_TX_FIFO_BE, | |
88 | IWL_GEN2_TRIG_TX_FIFO_BK, | |
cf6c6ea3 EG |
89 | }; |
90 | ||
8ca151b5 JB |
91 | struct iwl_mvm_mac_iface_iterator_data { |
92 | struct iwl_mvm *mvm; | |
93 | struct ieee80211_vif *vif; | |
94 | unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)]; | |
95 | unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)]; | |
8ca151b5 JB |
96 | enum iwl_tsf_id preferred_tsf; |
97 | bool found_vif; | |
98 | }; | |
99 | ||
6e97b0d2 IP |
100 | static void iwl_mvm_mac_tsf_id_iter(void *_data, u8 *mac, |
101 | struct ieee80211_vif *vif) | |
8ca151b5 JB |
102 | { |
103 | struct iwl_mvm_mac_iface_iterator_data *data = _data; | |
104 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
2c3e62a1 | 105 | u16 min_bi; |
8ca151b5 | 106 | |
6e97b0d2 IP |
107 | /* Skip the interface for which we are trying to assign a tsf_id */ |
108 | if (vif == data->vif) | |
8ca151b5 | 109 | return; |
8ca151b5 JB |
110 | |
111 | /* | |
112 | * The TSF is a hardware/firmware resource, there are 4 and | |
113 | * the driver should assign and free them as needed. However, | |
114 | * there are cases where 2 MACs should share the same TSF ID | |
115 | * for the purpose of clock sync, an optimization to avoid | |
116 | * clock drift causing overlapping TBTTs/DTIMs for a GO and | |
117 | * client in the system. | |
118 | * | |
119 | * The firmware will decide according to the MAC type which | |
120 | * will be the master and slave. Clients that need to sync | |
121 | * with a remote station will be the master, and an AP or GO | |
122 | * will be the slave. | |
123 | * | |
124 | * Depending on the new interface type it can be slaved to | |
125 | * or become the master of an existing interface. | |
126 | */ | |
127 | switch (data->vif->type) { | |
128 | case NL80211_IFTYPE_STATION: | |
129 | /* | |
2c3e62a1 IP |
130 | * The new interface is a client, so if the one we're iterating |
131 | * is an AP, and the beacon interval of the AP is a multiple or | |
132 | * divisor of the beacon interval of the client, the same TSF | |
133 | * should be used to avoid drift between the new client and | |
134 | * existing AP. The existing AP will get drift updates from the | |
135 | * new client context in this case. | |
8ca151b5 | 136 | */ |
2c3e62a1 IP |
137 | if (vif->type != NL80211_IFTYPE_AP || |
138 | data->preferred_tsf != NUM_TSF_IDS || | |
139 | !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) | |
140 | break; | |
141 | ||
142 | min_bi = min(data->vif->bss_conf.beacon_int, | |
143 | vif->bss_conf.beacon_int); | |
144 | ||
145 | if (!min_bi) | |
146 | break; | |
147 | ||
148 | if ((data->vif->bss_conf.beacon_int - | |
149 | vif->bss_conf.beacon_int) % min_bi == 0) { | |
150 | data->preferred_tsf = mvmvif->tsf_id; | |
151 | return; | |
8ca151b5 JB |
152 | } |
153 | break; | |
2c3e62a1 | 154 | |
8ca151b5 JB |
155 | case NL80211_IFTYPE_AP: |
156 | /* | |
2c3e62a1 IP |
157 | * The new interface is AP/GO, so if its beacon interval is a |
158 | * multiple or a divisor of the beacon interval of an existing | |
159 | * interface, it should get drift updates from an existing | |
160 | * client or use the same TSF as an existing GO. There's no | |
161 | * drift between TSFs internally but if they used different | |
162 | * TSFs then a new client MAC could update one of them and | |
163 | * cause drift that way. | |
8ca151b5 | 164 | */ |
2c3e62a1 IP |
165 | if ((vif->type != NL80211_IFTYPE_AP && |
166 | vif->type != NL80211_IFTYPE_STATION) || | |
167 | data->preferred_tsf != NUM_TSF_IDS || | |
168 | !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) | |
169 | break; | |
170 | ||
171 | min_bi = min(data->vif->bss_conf.beacon_int, | |
172 | vif->bss_conf.beacon_int); | |
173 | ||
174 | if (!min_bi) | |
175 | break; | |
176 | ||
177 | if ((data->vif->bss_conf.beacon_int - | |
178 | vif->bss_conf.beacon_int) % min_bi == 0) { | |
179 | data->preferred_tsf = mvmvif->tsf_id; | |
180 | return; | |
8ca151b5 JB |
181 | } |
182 | break; | |
183 | default: | |
184 | /* | |
185 | * For all other interface types there's no need to | |
186 | * take drift into account. Either they're exclusive | |
187 | * like IBSS and monitor, or we don't care much about | |
188 | * their TSF (like P2P Device), but we won't be able | |
189 | * to share the TSF resource. | |
190 | */ | |
191 | break; | |
192 | } | |
193 | ||
194 | /* | |
195 | * Unless we exited above, we can't share the TSF resource | |
196 | * that the virtual interface we're iterating over is using | |
197 | * with the new one, so clear the available bit and if this | |
198 | * was the preferred one, reset that as well. | |
199 | */ | |
200 | __clear_bit(mvmvif->tsf_id, data->available_tsf_ids); | |
201 | ||
202 | if (data->preferred_tsf == mvmvif->tsf_id) | |
203 | data->preferred_tsf = NUM_TSF_IDS; | |
204 | } | |
205 | ||
6e97b0d2 IP |
206 | static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, |
207 | struct ieee80211_vif *vif) | |
208 | { | |
209 | struct iwl_mvm_mac_iface_iterator_data *data = _data; | |
210 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
6e97b0d2 IP |
211 | |
212 | /* Iterator may already find the interface being added -- skip it */ | |
213 | if (vif == data->vif) { | |
214 | data->found_vif = true; | |
215 | return; | |
216 | } | |
217 | ||
6e97b0d2 IP |
218 | /* Mark MAC IDs as used by clearing the available bit, and |
219 | * (below) mark TSFs as used if their existing use is not | |
220 | * compatible with the new interface type. | |
221 | * No locking or atomic bit operations are needed since the | |
222 | * data is on the stack of the caller function. | |
223 | */ | |
224 | __clear_bit(mvmvif->id, data->available_mac_ids); | |
225 | ||
226 | /* find a suitable tsf_id */ | |
227 | iwl_mvm_mac_tsf_id_iter(_data, mac, vif); | |
228 | } | |
229 | ||
6e97b0d2 IP |
230 | void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, |
231 | struct ieee80211_vif *vif) | |
232 | { | |
233 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
234 | struct iwl_mvm_mac_iface_iterator_data data = { | |
235 | .mvm = mvm, | |
236 | .vif = vif, | |
237 | .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, | |
238 | /* no preference yet */ | |
239 | .preferred_tsf = NUM_TSF_IDS, | |
240 | }; | |
241 | ||
242 | ieee80211_iterate_active_interfaces_atomic( | |
243 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
244 | iwl_mvm_mac_tsf_id_iter, &data); | |
245 | ||
246 | if (data.preferred_tsf != NUM_TSF_IDS) | |
247 | mvmvif->tsf_id = data.preferred_tsf; | |
248 | else if (!test_bit(mvmvif->tsf_id, data.available_tsf_ids)) | |
249 | mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, | |
250 | NUM_TSF_IDS); | |
251 | } | |
252 | ||
c8f54701 | 253 | int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
8ca151b5 JB |
254 | { |
255 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
256 | struct iwl_mvm_mac_iface_iterator_data data = { | |
257 | .mvm = mvm, | |
258 | .vif = vif, | |
259 | .available_mac_ids = { (1 << NUM_MAC_INDEX_DRIVER) - 1 }, | |
260 | .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, | |
261 | /* no preference yet */ | |
262 | .preferred_tsf = NUM_TSF_IDS, | |
8ca151b5 JB |
263 | .found_vif = false, |
264 | }; | |
3f7fbc8c | 265 | int ret, i; |
8ca151b5 | 266 | |
c8f54701 JB |
267 | lockdep_assert_held(&mvm->mutex); |
268 | ||
8ca151b5 JB |
269 | /* |
270 | * Allocate a MAC ID and a TSF for this MAC, along with the queues | |
271 | * and other resources. | |
272 | */ | |
273 | ||
274 | /* | |
275 | * Before the iterator, we start with all MAC IDs and TSFs available. | |
276 | * | |
277 | * During iteration, all MAC IDs are cleared that are in use by other | |
278 | * virtual interfaces, and all TSF IDs are cleared that can't be used | |
279 | * by this new virtual interface because they're used by an interface | |
280 | * that can't share it with the new one. | |
281 | * At the same time, we check if there's a preferred TSF in the case | |
282 | * that we should share it with another interface. | |
283 | */ | |
284 | ||
5023d966 JB |
285 | /* Currently, MAC ID 0 should be used only for the managed/IBSS vif */ |
286 | switch (vif->type) { | |
287 | case NL80211_IFTYPE_ADHOC: | |
288 | break; | |
289 | case NL80211_IFTYPE_STATION: | |
290 | if (!vif->p2p) | |
291 | break; | |
292 | /* fall through */ | |
293 | default: | |
ec8b6885 | 294 | __clear_bit(0, data.available_mac_ids); |
5023d966 | 295 | } |
ec8b6885 | 296 | |
8ca151b5 JB |
297 | ieee80211_iterate_active_interfaces_atomic( |
298 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
299 | iwl_mvm_mac_iface_iterator, &data); | |
300 | ||
301 | /* | |
302 | * In the case we're getting here during resume, it's similar to | |
303 | * firmware restart, and with RESUME_ALL the iterator will find | |
304 | * the vif being added already. | |
305 | * We don't want to reassign any IDs in either case since doing | |
306 | * so would probably assign different IDs (as interfaces aren't | |
307 | * necessarily added in the same order), but the old IDs were | |
308 | * preserved anyway, so skip ID assignment for both resume and | |
309 | * recovery. | |
310 | */ | |
311 | if (data.found_vif) | |
312 | return 0; | |
313 | ||
314 | /* Therefore, in recovery, we can't get here */ | |
fd11bd05 IP |
315 | if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) |
316 | return -EBUSY; | |
8ca151b5 JB |
317 | |
318 | mvmvif->id = find_first_bit(data.available_mac_ids, | |
319 | NUM_MAC_INDEX_DRIVER); | |
320 | if (mvmvif->id == NUM_MAC_INDEX_DRIVER) { | |
321 | IWL_ERR(mvm, "Failed to init MAC context - no free ID!\n"); | |
322 | ret = -EIO; | |
323 | goto exit_fail; | |
324 | } | |
325 | ||
326 | if (data.preferred_tsf != NUM_TSF_IDS) | |
327 | mvmvif->tsf_id = data.preferred_tsf; | |
328 | else | |
329 | mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, | |
330 | NUM_TSF_IDS); | |
331 | if (mvmvif->tsf_id == NUM_TSF_IDS) { | |
332 | IWL_ERR(mvm, "Failed to init MAC context - no free TSF!\n"); | |
333 | ret = -EIO; | |
334 | goto exit_fail; | |
335 | } | |
336 | ||
337 | mvmvif->color = 0; | |
338 | ||
1e849c93 IP |
339 | INIT_LIST_HEAD(&mvmvif->time_event_data.list); |
340 | mvmvif->time_event_data.id = TE_MAX; | |
341 | ||
3f7fbc8c JB |
342 | /* No need to allocate data queues to P2P Device MAC and NAN.*/ |
343 | if (vif->type == NL80211_IFTYPE_P2P_DEVICE) | |
8ca151b5 | 344 | return 0; |
8ca151b5 JB |
345 | |
346 | /* Allocate the CAB queue for softAP and GO interfaces */ | |
fc07bd8c SS |
347 | if (vif->type == NL80211_IFTYPE_AP || |
348 | vif->type == NL80211_IFTYPE_ADHOC) { | |
e2af3fab SS |
349 | /* |
350 | * For TVQM this will be overwritten later with the FW assigned | |
351 | * queue value (when queue is enabled). | |
352 | */ | |
c8f54701 | 353 | mvmvif->cab_queue = IWL_MVM_DQA_GCAST_QUEUE; |
8ca151b5 JB |
354 | } |
355 | ||
0ae98812 SS |
356 | mvmvif->bcast_sta.sta_id = IWL_MVM_INVALID_STA; |
357 | mvmvif->mcast_sta.sta_id = IWL_MVM_INVALID_STA; | |
358 | mvmvif->ap_sta_id = IWL_MVM_INVALID_STA; | |
8ca151b5 | 359 | |
9ee718aa EL |
360 | for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) |
361 | mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC; | |
362 | ||
8ca151b5 JB |
363 | return 0; |
364 | ||
365 | exit_fail: | |
366 | memset(mvmvif, 0, sizeof(struct iwl_mvm_vif)); | |
8ca151b5 JB |
367 | return ret; |
368 | } | |
369 | ||
8ca151b5 JB |
370 | static void iwl_mvm_ack_rates(struct iwl_mvm *mvm, |
371 | struct ieee80211_vif *vif, | |
57fbcce3 | 372 | enum nl80211_band band, |
8ca151b5 JB |
373 | u8 *cck_rates, u8 *ofdm_rates) |
374 | { | |
375 | struct ieee80211_supported_band *sband; | |
376 | unsigned long basic = vif->bss_conf.basic_rates; | |
377 | int lowest_present_ofdm = 100; | |
378 | int lowest_present_cck = 100; | |
379 | u8 cck = 0; | |
380 | u8 ofdm = 0; | |
381 | int i; | |
382 | ||
383 | sband = mvm->hw->wiphy->bands[band]; | |
384 | ||
385 | for_each_set_bit(i, &basic, BITS_PER_LONG) { | |
386 | int hw = sband->bitrates[i].hw_value; | |
387 | if (hw >= IWL_FIRST_OFDM_RATE) { | |
388 | ofdm |= BIT(hw - IWL_FIRST_OFDM_RATE); | |
389 | if (lowest_present_ofdm > hw) | |
390 | lowest_present_ofdm = hw; | |
391 | } else { | |
392 | BUILD_BUG_ON(IWL_FIRST_CCK_RATE != 0); | |
393 | ||
394 | cck |= BIT(hw); | |
395 | if (lowest_present_cck > hw) | |
396 | lowest_present_cck = hw; | |
397 | } | |
398 | } | |
399 | ||
400 | /* | |
401 | * Now we've got the basic rates as bitmaps in the ofdm and cck | |
402 | * variables. This isn't sufficient though, as there might not | |
403 | * be all the right rates in the bitmap. E.g. if the only basic | |
404 | * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps | |
405 | * and 6 Mbps because the 802.11-2007 standard says in 9.6: | |
406 | * | |
407 | * [...] a STA responding to a received frame shall transmit | |
408 | * its Control Response frame [...] at the highest rate in the | |
409 | * BSSBasicRateSet parameter that is less than or equal to the | |
410 | * rate of the immediately previous frame in the frame exchange | |
411 | * sequence ([...]) and that is of the same modulation class | |
412 | * ([...]) as the received frame. If no rate contained in the | |
413 | * BSSBasicRateSet parameter meets these conditions, then the | |
414 | * control frame sent in response to a received frame shall be | |
415 | * transmitted at the highest mandatory rate of the PHY that is | |
416 | * less than or equal to the rate of the received frame, and | |
417 | * that is of the same modulation class as the received frame. | |
418 | * | |
419 | * As a consequence, we need to add all mandatory rates that are | |
420 | * lower than all of the basic rates to these bitmaps. | |
421 | */ | |
422 | ||
423 | if (IWL_RATE_24M_INDEX < lowest_present_ofdm) | |
424 | ofdm |= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE; | |
425 | if (IWL_RATE_12M_INDEX < lowest_present_ofdm) | |
426 | ofdm |= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE; | |
427 | /* 6M already there or needed so always add */ | |
428 | ofdm |= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE; | |
429 | ||
430 | /* | |
431 | * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP. | |
432 | * Note, however: | |
433 | * - if no CCK rates are basic, it must be ERP since there must | |
434 | * be some basic rates at all, so they're OFDM => ERP PHY | |
435 | * (or we're in 5 GHz, and the cck bitmap will never be used) | |
436 | * - if 11M is a basic rate, it must be ERP as well, so add 5.5M | |
437 | * - if 5.5M is basic, 1M and 2M are mandatory | |
438 | * - if 2M is basic, 1M is mandatory | |
439 | * - if 1M is basic, that's the only valid ACK rate. | |
440 | * As a consequence, it's not as complicated as it sounds, just add | |
441 | * any lower rates to the ACK rate bitmap. | |
442 | */ | |
443 | if (IWL_RATE_11M_INDEX < lowest_present_cck) | |
444 | cck |= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE; | |
445 | if (IWL_RATE_5M_INDEX < lowest_present_cck) | |
446 | cck |= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE; | |
447 | if (IWL_RATE_2M_INDEX < lowest_present_cck) | |
448 | cck |= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE; | |
449 | /* 1M already there or needed so always add */ | |
450 | cck |= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE; | |
451 | ||
452 | *cck_rates = cck; | |
453 | *ofdm_rates = ofdm; | |
454 | } | |
455 | ||
8a5e3660 AA |
456 | static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm *mvm, |
457 | struct ieee80211_vif *vif, | |
458 | struct iwl_mac_ctx_cmd *cmd) | |
459 | { | |
460 | /* for both sta and ap, ht_operation_mode hold the protection_mode */ | |
461 | u8 protection_mode = vif->bss_conf.ht_operation_mode & | |
462 | IEEE80211_HT_OP_MODE_PROTECTION; | |
463 | /* The fw does not distinguish between ht and fat */ | |
464 | u32 ht_flag = MAC_PROT_FLG_HT_PROT | MAC_PROT_FLG_FAT_PROT; | |
465 | ||
466 | IWL_DEBUG_RATE(mvm, "protection mode set to %d\n", protection_mode); | |
467 | /* | |
468 | * See section 9.23.3.1 of IEEE 80211-2012. | |
469 | * Nongreenfield HT STAs Present is not supported. | |
470 | */ | |
471 | switch (protection_mode) { | |
472 | case IEEE80211_HT_OP_MODE_PROTECTION_NONE: | |
473 | break; | |
474 | case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: | |
475 | case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: | |
476 | cmd->protection_flags |= cpu_to_le32(ht_flag); | |
477 | break; | |
478 | case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: | |
479 | /* Protect when channel wider than 20MHz */ | |
480 | if (vif->bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) | |
481 | cmd->protection_flags |= cpu_to_le32(ht_flag); | |
482 | break; | |
483 | default: | |
484 | IWL_ERR(mvm, "Illegal protection mode %d\n", | |
485 | protection_mode); | |
486 | break; | |
487 | } | |
488 | } | |
489 | ||
8ca151b5 JB |
490 | static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, |
491 | struct ieee80211_vif *vif, | |
492 | struct iwl_mac_ctx_cmd *cmd, | |
3dfd3a97 | 493 | const u8 *bssid_override, |
8ca151b5 JB |
494 | u32 action) |
495 | { | |
496 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
497 | struct ieee80211_chanctx_conf *chanctx; | |
8a5e3660 AA |
498 | bool ht_enabled = !!(vif->bss_conf.ht_operation_mode & |
499 | IEEE80211_HT_OP_MODE_PROTECTION); | |
8ca151b5 | 500 | u8 cck_ack_rates, ofdm_ack_rates; |
3dfd3a97 | 501 | const u8 *bssid = bssid_override ?: vif->bss_conf.bssid; |
8ca151b5 JB |
502 | int i; |
503 | ||
504 | cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
505 | mvmvif->color)); | |
506 | cmd->action = cpu_to_le32(action); | |
507 | ||
508 | switch (vif->type) { | |
509 | case NL80211_IFTYPE_STATION: | |
510 | if (vif->p2p) | |
511 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_STA); | |
512 | else | |
513 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_BSS_STA); | |
514 | break; | |
515 | case NL80211_IFTYPE_AP: | |
516 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_GO); | |
517 | break; | |
518 | case NL80211_IFTYPE_MONITOR: | |
519 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_LISTENER); | |
520 | break; | |
521 | case NL80211_IFTYPE_P2P_DEVICE: | |
522 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE); | |
523 | break; | |
524 | case NL80211_IFTYPE_ADHOC: | |
525 | cmd->mac_type = cpu_to_le32(FW_MAC_TYPE_IBSS); | |
526 | break; | |
527 | default: | |
528 | WARN_ON_ONCE(1); | |
529 | } | |
530 | ||
531 | cmd->tsf_id = cpu_to_le32(mvmvif->tsf_id); | |
532 | ||
533 | memcpy(cmd->node_addr, vif->addr, ETH_ALEN); | |
3dfd3a97 JB |
534 | |
535 | if (bssid) | |
536 | memcpy(cmd->bssid_addr, bssid, ETH_ALEN); | |
8ca151b5 JB |
537 | else |
538 | eth_broadcast_addr(cmd->bssid_addr); | |
539 | ||
540 | rcu_read_lock(); | |
541 | chanctx = rcu_dereference(vif->chanctx_conf); | |
542 | iwl_mvm_ack_rates(mvm, vif, chanctx ? chanctx->def.chan->band | |
57fbcce3 | 543 | : NL80211_BAND_2GHZ, |
8ca151b5 JB |
544 | &cck_ack_rates, &ofdm_ack_rates); |
545 | rcu_read_unlock(); | |
546 | ||
547 | cmd->cck_rates = cpu_to_le32((u32)cck_ack_rates); | |
548 | cmd->ofdm_rates = cpu_to_le32((u32)ofdm_ack_rates); | |
549 | ||
550 | cmd->cck_short_preamble = | |
551 | cpu_to_le32(vif->bss_conf.use_short_preamble ? | |
552 | MAC_FLG_SHORT_PREAMBLE : 0); | |
553 | cmd->short_slot = | |
554 | cpu_to_le32(vif->bss_conf.use_short_slot ? | |
555 | MAC_FLG_SHORT_SLOT : 0); | |
556 | ||
50f56044 | 557 | cmd->filter_flags = 0; |
bd6f5bd7 | 558 | |
3dd94794 | 559 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
cf6c6ea3 | 560 | u8 txf = iwl_mvm_mac_ac_to_tx_fifo(mvm, i); |
b5e2fe35 | 561 | u8 ucode_ac = iwl_mvm_mac80211_ac_to_ucode_ac(i); |
3dd94794 | 562 | |
b5e2fe35 | 563 | cmd->ac[ucode_ac].cw_min = |
3dd94794 | 564 | cpu_to_le16(mvmvif->queue_params[i].cw_min); |
b5e2fe35 | 565 | cmd->ac[ucode_ac].cw_max = |
3dd94794 | 566 | cpu_to_le16(mvmvif->queue_params[i].cw_max); |
b5e2fe35 | 567 | cmd->ac[ucode_ac].edca_txop = |
8ca151b5 | 568 | cpu_to_le16(mvmvif->queue_params[i].txop * 32); |
b5e2fe35 NG |
569 | cmd->ac[ucode_ac].aifsn = mvmvif->queue_params[i].aifs; |
570 | cmd->ac[ucode_ac].fifos_mask = BIT(txf); | |
8ca151b5 JB |
571 | } |
572 | ||
573 | if (vif->bss_conf.qos) | |
574 | cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA); | |
575 | ||
dc271ee0 | 576 | if (vif->bss_conf.use_cts_prot) |
cc7ee2ba | 577 | cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); |
dc271ee0 | 578 | |
8a5e3660 AA |
579 | IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n", |
580 | vif->bss_conf.use_cts_prot, | |
581 | vif->bss_conf.ht_operation_mode); | |
582 | if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) | |
8ca151b5 | 583 | cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN); |
8a5e3660 AA |
584 | if (ht_enabled) |
585 | iwl_mvm_mac_ctxt_set_ht_flags(mvm, vif, cmd); | |
8ca151b5 JB |
586 | } |
587 | ||
588 | static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, | |
589 | struct iwl_mac_ctx_cmd *cmd) | |
590 | { | |
a1022927 | 591 | int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, |
8ca151b5 JB |
592 | sizeof(*cmd), cmd); |
593 | if (ret) | |
594 | IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n", | |
595 | le32_to_cpu(cmd->action), ret); | |
596 | return ret; | |
597 | } | |
598 | ||
cf52023c LC |
599 | static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, |
600 | struct ieee80211_vif *vif, | |
3dfd3a97 JB |
601 | u32 action, bool force_assoc_off, |
602 | const u8 *bssid_override) | |
8ca151b5 | 603 | { |
cf52023c LC |
604 | struct iwl_mac_ctx_cmd cmd = {}; |
605 | struct iwl_mac_data_sta *ctxt_sta; | |
606 | ||
607 | WARN_ON(vif->type != NL80211_IFTYPE_STATION); | |
608 | ||
609 | /* Fill the common data for all mac context types */ | |
3dfd3a97 | 610 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, bssid_override, action); |
cf52023c LC |
611 | |
612 | if (vif->p2p) { | |
613 | struct ieee80211_p2p_noa_attr *noa = | |
614 | &vif->bss_conf.p2p_noa_attr; | |
615 | ||
616 | cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & | |
617 | IEEE80211_P2P_OPPPS_CTWINDOW_MASK); | |
618 | ctxt_sta = &cmd.p2p_sta.sta; | |
619 | } else { | |
cf52023c LC |
620 | ctxt_sta = &cmd.sta; |
621 | } | |
622 | ||
210a544e | 623 | /* We need the dtim_period to set the MAC as associated */ |
ba283927 AB |
624 | if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && |
625 | !force_assoc_off) { | |
50f56044 IP |
626 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
627 | u8 ap_sta_id = mvmvif->ap_sta_id; | |
d2931bbd JB |
628 | u32 dtim_offs; |
629 | ||
630 | /* | |
631 | * The DTIM count counts down, so when it is N that means N | |
632 | * more beacon intervals happen until the DTIM TBTT. Therefore | |
633 | * add this to the current time. If that ends up being in the | |
634 | * future, the firmware will handle it. | |
635 | * | |
636 | * Also note that the system_timestamp (which we get here as | |
637 | * "sync_device_ts") and TSF timestamp aren't at exactly the | |
638 | * same offset in the frame -- the TSF is at the first symbol | |
639 | * of the TSF, the system timestamp is at signal acquisition | |
640 | * time. This means there's an offset between them of at most | |
641 | * a few hundred microseconds (24 * 8 bits + PLCP time gives | |
642 | * 384us in the longest case), this is currently not relevant | |
643 | * as the firmware wakes up around 2ms before the TBTT. | |
644 | */ | |
645 | dtim_offs = vif->bss_conf.sync_dtim_count * | |
646 | vif->bss_conf.beacon_int; | |
647 | /* convert TU to usecs */ | |
648 | dtim_offs *= 1024; | |
649 | ||
650 | ctxt_sta->dtim_tsf = | |
651 | cpu_to_le64(vif->bss_conf.sync_tsf + dtim_offs); | |
652 | ctxt_sta->dtim_time = | |
653 | cpu_to_le32(vif->bss_conf.sync_device_ts + dtim_offs); | |
b5669727 AS |
654 | ctxt_sta->assoc_beacon_arrive_time = |
655 | cpu_to_le32(vif->bss_conf.sync_device_ts); | |
d2931bbd JB |
656 | |
657 | IWL_DEBUG_INFO(mvm, "DTIM TBTT is 0x%llx/0x%x, offset %d\n", | |
658 | le64_to_cpu(ctxt_sta->dtim_tsf), | |
659 | le32_to_cpu(ctxt_sta->dtim_time), | |
660 | dtim_offs); | |
661 | ||
210a544e | 662 | ctxt_sta->is_assoc = cpu_to_le32(1); |
50f56044 IP |
663 | |
664 | /* | |
665 | * allow multicast data frames only as long as the station is | |
666 | * authorized, i.e., GTK keys are already installed (if needed) | |
667 | */ | |
668 | if (ap_sta_id < IWL_MVM_STATION_COUNT) { | |
669 | struct ieee80211_sta *sta; | |
670 | ||
671 | rcu_read_lock(); | |
672 | ||
673 | sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]); | |
674 | if (!IS_ERR_OR_NULL(sta)) { | |
675 | struct iwl_mvm_sta *mvmsta = | |
676 | iwl_mvm_sta_from_mac80211(sta); | |
677 | ||
678 | if (mvmsta->sta_state == | |
679 | IEEE80211_STA_AUTHORIZED) | |
680 | cmd.filter_flags |= | |
681 | cpu_to_le32(MAC_FILTER_ACCEPT_GRP); | |
682 | } | |
683 | ||
684 | rcu_read_unlock(); | |
685 | } | |
d2931bbd | 686 | } else { |
210a544e | 687 | ctxt_sta->is_assoc = cpu_to_le32(0); |
7c8b3bc6 LC |
688 | |
689 | /* Allow beacons to pass through as long as we are not | |
690 | * associated, or we do not have dtim period information. | |
691 | */ | |
692 | cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); | |
d2931bbd | 693 | } |
8ca151b5 JB |
694 | |
695 | ctxt_sta->bi = cpu_to_le32(vif->bss_conf.beacon_int); | |
8ca151b5 JB |
696 | ctxt_sta->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * |
697 | vif->bss_conf.dtim_period); | |
8ca151b5 JB |
698 | |
699 | ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval); | |
700 | ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid); | |
8ca151b5 | 701 | |
effd1929 AO |
702 | if (vif->probe_req_reg && vif->bss_conf.assoc && vif->p2p) |
703 | cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); | |
704 | ||
9394662a | 705 | if (vif->bss_conf.he_support && !iwlwifi_mod_params.disable_11ax) { |
514c3069 | 706 | cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_11AX); |
d374f315 | 707 | if (vif->bss_conf.twt_requester && IWL_MVM_USE_TWT) |
866a6a85 | 708 | ctxt_sta->data_policy |= cpu_to_le32(TWT_SUPPORTED); |
d91d9b94 EG |
709 | } |
710 | ||
514c3069 | 711 | |
8ca151b5 JB |
712 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
713 | } | |
714 | ||
715 | static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, | |
716 | struct ieee80211_vif *vif, | |
717 | u32 action) | |
718 | { | |
719 | struct iwl_mac_ctx_cmd cmd = {}; | |
b13f43a4 | 720 | u32 tfd_queue_msk = BIT(mvm->snif_queue); |
c8f54701 | 721 | int ret; |
8ca151b5 JB |
722 | |
723 | WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); | |
724 | ||
3dfd3a97 | 725 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
53585495 JB |
726 | |
727 | cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | | |
728 | MAC_FILTER_IN_CONTROL_AND_MGMT | | |
729 | MAC_FILTER_IN_BEACON | | |
fb8b8ee1 | 730 | MAC_FILTER_IN_PROBE_REQUEST | |
50f56044 IP |
731 | MAC_FILTER_IN_CRC32 | |
732 | MAC_FILTER_ACCEPT_GRP); | |
30686bf7 | 733 | ieee80211_hw_set(mvm->hw, RX_INCLUDES_FCS); |
53585495 | 734 | |
0e39eb03 CRI |
735 | /* Allocate sniffer station */ |
736 | ret = iwl_mvm_allocate_int_sta(mvm, &mvm->snif_sta, tfd_queue_msk, | |
ced19f26 | 737 | vif->type, IWL_STA_GENERAL_PURPOSE); |
0e39eb03 CRI |
738 | if (ret) |
739 | return ret; | |
740 | ||
8ca151b5 JB |
741 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); |
742 | } | |
743 | ||
5023d966 JB |
744 | static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm, |
745 | struct ieee80211_vif *vif, | |
746 | u32 action) | |
747 | { | |
748 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
749 | struct iwl_mac_ctx_cmd cmd = {}; | |
750 | ||
751 | WARN_ON(vif->type != NL80211_IFTYPE_ADHOC); | |
752 | ||
3dfd3a97 | 753 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
5023d966 JB |
754 | |
755 | cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON | | |
50f56044 IP |
756 | MAC_FILTER_IN_PROBE_REQUEST | |
757 | MAC_FILTER_ACCEPT_GRP); | |
5023d966 JB |
758 | |
759 | /* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */ | |
760 | cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int); | |
5023d966 JB |
761 | |
762 | /* TODO: Assumes that the beacon id == mac context id */ | |
763 | cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id); | |
764 | ||
765 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); | |
766 | } | |
767 | ||
8ca151b5 JB |
768 | struct iwl_mvm_go_iterator_data { |
769 | bool go_active; | |
770 | }; | |
771 | ||
772 | static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) | |
773 | { | |
774 | struct iwl_mvm_go_iterator_data *data = _data; | |
775 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
776 | ||
5023d966 JB |
777 | if (vif->type == NL80211_IFTYPE_AP && vif->p2p && |
778 | mvmvif->ap_ibss_active) | |
8ca151b5 JB |
779 | data->go_active = true; |
780 | } | |
781 | ||
782 | static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm *mvm, | |
783 | struct ieee80211_vif *vif, | |
784 | u32 action) | |
785 | { | |
786 | struct iwl_mac_ctx_cmd cmd = {}; | |
787 | struct iwl_mvm_go_iterator_data data = {}; | |
788 | ||
789 | WARN_ON(vif->type != NL80211_IFTYPE_P2P_DEVICE); | |
790 | ||
3dfd3a97 | 791 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
8ca151b5 | 792 | |
1dcd15ee IP |
793 | /* Override the filter flags to accept only probe requests */ |
794 | cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); | |
8ca151b5 JB |
795 | |
796 | /* | |
797 | * This flag should be set to true when the P2P Device is | |
798 | * discoverable and there is at least another active P2P GO. Settings | |
799 | * this flag will allow the P2P Device to be discoverable on other | |
800 | * channels in addition to its listen channel. | |
801 | * Note that this flag should not be set in other cases as it opens the | |
802 | * Rx filters on all MAC and increases the number of interrupts. | |
803 | */ | |
804 | ieee80211_iterate_active_interfaces_atomic( | |
805 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
806 | iwl_mvm_go_iterator, &data); | |
807 | ||
808 | cmd.p2p_dev.is_disc_extended = cpu_to_le32(data.go_active ? 1 : 0); | |
809 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); | |
810 | } | |
811 | ||
138664a3 SS |
812 | void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm *mvm, |
813 | __le32 *tim_index, __le32 *tim_size, | |
814 | u8 *beacon, u32 frame_size) | |
8ca151b5 JB |
815 | { |
816 | u32 tim_idx; | |
817 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; | |
818 | ||
819 | /* The index is relative to frame start but we start looking at the | |
820 | * variable-length part of the beacon. */ | |
821 | tim_idx = mgmt->u.beacon.variable - beacon; | |
822 | ||
823 | /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ | |
824 | while ((tim_idx < (frame_size - 2)) && | |
825 | (beacon[tim_idx] != WLAN_EID_TIM)) | |
826 | tim_idx += beacon[tim_idx+1] + 2; | |
827 | ||
828 | /* If TIM field was found, set variables */ | |
829 | if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { | |
8364fbb4 SS |
830 | *tim_index = cpu_to_le32(tim_idx); |
831 | *tim_size = cpu_to_le32((u32)beacon[tim_idx + 1]); | |
8ca151b5 JB |
832 | } else { |
833 | IWL_WARN(mvm, "Unable to find TIM Element in beacon\n"); | |
834 | } | |
835 | } | |
836 | ||
d3a108a4 AO |
837 | static u32 iwl_mvm_find_ie_offset(u8 *beacon, u8 eid, u32 frame_size) |
838 | { | |
839 | struct ieee80211_mgmt *mgmt = (void *)beacon; | |
840 | const u8 *ie; | |
841 | ||
842 | if (WARN_ON_ONCE(frame_size <= (mgmt->u.beacon.variable - beacon))) | |
843 | return 0; | |
844 | ||
845 | frame_size -= mgmt->u.beacon.variable - beacon; | |
846 | ||
847 | ie = cfg80211_find_ie(eid, mgmt->u.beacon.variable, frame_size); | |
848 | if (!ie) | |
849 | return 0; | |
850 | ||
851 | return ie - beacon; | |
852 | } | |
853 | ||
138664a3 SS |
854 | u8 iwl_mvm_mac_ctxt_get_lowest_rate(struct ieee80211_tx_info *info, |
855 | struct ieee80211_vif *vif) | |
6ca33f8b HD |
856 | { |
857 | u8 rate; | |
d558b7f8 | 858 | if (info->band == NL80211_BAND_2GHZ && !vif->p2p) |
6ca33f8b | 859 | rate = IWL_FIRST_CCK_RATE; |
d558b7f8 TM |
860 | else |
861 | rate = IWL_FIRST_OFDM_RATE; | |
6ca33f8b HD |
862 | |
863 | return rate; | |
864 | } | |
865 | ||
09856582 LC |
866 | static void iwl_mvm_mac_ctxt_set_tx(struct iwl_mvm *mvm, |
867 | struct ieee80211_vif *vif, | |
868 | struct sk_buff *beacon, | |
869 | struct iwl_tx_cmd *tx) | |
8ca151b5 JB |
870 | { |
871 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
8ca151b5 | 872 | struct ieee80211_tx_info *info; |
6ca33f8b HD |
873 | u8 rate; |
874 | u32 tx_flags; | |
8ca151b5 | 875 | |
75f6b9b6 | 876 | info = IEEE80211_SKB_CB(beacon); |
8ca151b5 JB |
877 | |
878 | /* Set up TX command fields */ | |
09856582 LC |
879 | tx->len = cpu_to_le16((u16)beacon->len); |
880 | tx->sta_id = mvmvif->bcast_sta.sta_id; | |
881 | tx->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); | |
75f6b9b6 EG |
882 | tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; |
883 | tx_flags |= | |
884 | iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << | |
885 | TX_CMD_FLG_BT_PRIO_POS; | |
09856582 | 886 | tx->tx_flags = cpu_to_le32(tx_flags); |
8ca151b5 | 887 | |
1e3c3c35 | 888 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
656fca00 AS |
889 | IWL_UCODE_TLV_CAPA_BEACON_ANT_SELECTION)) |
890 | iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx); | |
8ca151b5 | 891 | |
09856582 | 892 | tx->rate_n_flags = |
8ca151b5 JB |
893 | cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << |
894 | RATE_MCS_ANT_POS); | |
895 | ||
6ca33f8b | 896 | rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); |
8ca151b5 | 897 | |
09856582 | 898 | tx->rate_n_flags |= cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); |
6ca33f8b HD |
899 | if (rate == IWL_FIRST_CCK_RATE) |
900 | tx->rate_n_flags |= cpu_to_le32(RATE_MCS_CCK_MSK); | |
901 | ||
09856582 LC |
902 | } |
903 | ||
138664a3 SS |
904 | int iwl_mvm_mac_ctxt_send_beacon_cmd(struct iwl_mvm *mvm, |
905 | struct sk_buff *beacon, | |
906 | void *data, int len) | |
09856582 LC |
907 | { |
908 | struct iwl_host_cmd cmd = { | |
909 | .id = BEACON_TEMPLATE_CMD, | |
910 | .flags = CMD_ASYNC, | |
911 | }; | |
8ca151b5 | 912 | |
09856582 LC |
913 | cmd.len[0] = len; |
914 | cmd.data[0] = data; | |
8ca151b5 | 915 | cmd.dataflags[0] = 0; |
09856582 | 916 | cmd.len[1] = beacon->len; |
8ca151b5 JB |
917 | cmd.data[1] = beacon->data; |
918 | cmd.dataflags[1] = IWL_HCMD_DFL_DUP; | |
919 | ||
920 | return iwl_mvm_send_cmd(mvm, &cmd); | |
921 | } | |
922 | ||
09856582 LC |
923 | static int iwl_mvm_mac_ctxt_send_beacon_v6(struct iwl_mvm *mvm, |
924 | struct ieee80211_vif *vif, | |
925 | struct sk_buff *beacon) | |
926 | { | |
927 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
928 | struct iwl_mac_beacon_cmd_v6 beacon_cmd = {}; | |
929 | ||
930 | iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); | |
931 | ||
932 | beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); | |
933 | ||
934 | if (vif->type == NL80211_IFTYPE_AP) | |
935 | iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, | |
936 | &beacon_cmd.tim_size, | |
937 | beacon->data, beacon->len); | |
938 | ||
939 | return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, | |
940 | sizeof(beacon_cmd)); | |
941 | } | |
942 | ||
943 | static int iwl_mvm_mac_ctxt_send_beacon_v7(struct iwl_mvm *mvm, | |
944 | struct ieee80211_vif *vif, | |
945 | struct sk_buff *beacon) | |
946 | { | |
947 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
948 | struct iwl_mac_beacon_cmd_v7 beacon_cmd = {}; | |
949 | ||
950 | iwl_mvm_mac_ctxt_set_tx(mvm, vif, beacon, &beacon_cmd.tx); | |
951 | ||
952 | beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); | |
953 | ||
954 | if (vif->type == NL80211_IFTYPE_AP) | |
955 | iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, | |
956 | &beacon_cmd.tim_size, | |
957 | beacon->data, beacon->len); | |
958 | ||
959 | beacon_cmd.csa_offset = | |
960 | cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, | |
961 | WLAN_EID_CHANNEL_SWITCH, | |
962 | beacon->len)); | |
963 | beacon_cmd.ecsa_offset = | |
964 | cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, | |
965 | WLAN_EID_EXT_CHANSWITCH_ANN, | |
966 | beacon->len)); | |
967 | ||
968 | return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, | |
969 | sizeof(beacon_cmd)); | |
970 | } | |
971 | ||
6ca33f8b | 972 | static int iwl_mvm_mac_ctxt_send_beacon_v9(struct iwl_mvm *mvm, |
09856582 LC |
973 | struct ieee80211_vif *vif, |
974 | struct sk_buff *beacon) | |
975 | { | |
976 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
6ca33f8b | 977 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(beacon); |
09856582 | 978 | struct iwl_mac_beacon_cmd beacon_cmd = {}; |
6ca33f8b HD |
979 | u8 rate = iwl_mvm_mac_ctxt_get_lowest_rate(info, vif); |
980 | u16 flags; | |
981 | ||
982 | flags = iwl_mvm_mac80211_idx_to_hwrate(rate); | |
09856582 | 983 | |
6ca33f8b HD |
984 | if (rate == IWL_FIRST_CCK_RATE) |
985 | flags |= IWL_MAC_BEACON_CCK; | |
986 | ||
987 | beacon_cmd.flags = cpu_to_le16(flags); | |
09856582 LC |
988 | beacon_cmd.byte_cnt = cpu_to_le16((u16)beacon->len); |
989 | beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); | |
990 | ||
991 | if (vif->type == NL80211_IFTYPE_AP) | |
6ca33f8b | 992 | iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd.tim_idx, |
09856582 LC |
993 | &beacon_cmd.tim_size, |
994 | beacon->data, beacon->len); | |
995 | ||
996 | beacon_cmd.csa_offset = | |
997 | cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, | |
998 | WLAN_EID_CHANNEL_SWITCH, | |
999 | beacon->len)); | |
1000 | beacon_cmd.ecsa_offset = | |
1001 | cpu_to_le32(iwl_mvm_find_ie_offset(beacon->data, | |
1002 | WLAN_EID_EXT_CHANSWITCH_ANN, | |
1003 | beacon->len)); | |
1004 | ||
1005 | return iwl_mvm_mac_ctxt_send_beacon_cmd(mvm, beacon, &beacon_cmd, | |
1006 | sizeof(beacon_cmd)); | |
1007 | } | |
1008 | ||
138664a3 SS |
1009 | int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, |
1010 | struct ieee80211_vif *vif, | |
1011 | struct sk_buff *beacon) | |
09856582 LC |
1012 | { |
1013 | if (WARN_ON(!beacon)) | |
1014 | return -EINVAL; | |
1015 | ||
50386305 SS |
1016 | if (IWL_MVM_NON_TRANSMITTING_AP) |
1017 | return 0; | |
1018 | ||
09856582 LC |
1019 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
1020 | IWL_UCODE_TLV_CAPA_CSA_AND_TBTT_OFFLOAD)) | |
1021 | return iwl_mvm_mac_ctxt_send_beacon_v6(mvm, vif, beacon); | |
1022 | ||
6ca33f8b HD |
1023 | if (fw_has_api(&mvm->fw->ucode_capa, |
1024 | IWL_UCODE_TLV_API_NEW_BEACON_TEMPLATE)) | |
1025 | return iwl_mvm_mac_ctxt_send_beacon_v9(mvm, vif, beacon); | |
09856582 | 1026 | |
6ca33f8b | 1027 | return iwl_mvm_mac_ctxt_send_beacon_v7(mvm, vif, beacon); |
09856582 LC |
1028 | } |
1029 | ||
5023d966 | 1030 | /* The beacon template for the AP/GO/IBSS has changed and needs update */ |
8ca151b5 JB |
1031 | int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, |
1032 | struct ieee80211_vif *vif) | |
1033 | { | |
1034 | struct sk_buff *beacon; | |
1035 | int ret; | |
1036 | ||
5023d966 JB |
1037 | WARN_ON(vif->type != NL80211_IFTYPE_AP && |
1038 | vif->type != NL80211_IFTYPE_ADHOC); | |
8ca151b5 | 1039 | |
fe887665 | 1040 | beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); |
8ca151b5 JB |
1041 | if (!beacon) |
1042 | return -ENOMEM; | |
1043 | ||
90a12829 SS |
1044 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1045 | if (mvm->beacon_inject_active) | |
1046 | return -EBUSY; | |
1047 | #endif | |
1048 | ||
8ca151b5 JB |
1049 | ret = iwl_mvm_mac_ctxt_send_beacon(mvm, vif, beacon); |
1050 | dev_kfree_skb(beacon); | |
1051 | return ret; | |
1052 | } | |
1053 | ||
3a3cb92e IP |
1054 | struct iwl_mvm_mac_ap_iterator_data { |
1055 | struct iwl_mvm *mvm; | |
1056 | struct ieee80211_vif *vif; | |
1057 | u32 beacon_device_ts; | |
1058 | u16 beacon_int; | |
1059 | }; | |
1060 | ||
1061 | /* Find the beacon_device_ts and beacon_int for a managed interface */ | |
1062 | static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac, | |
1063 | struct ieee80211_vif *vif) | |
1064 | { | |
1065 | struct iwl_mvm_mac_ap_iterator_data *data = _data; | |
1066 | ||
1067 | if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) | |
1068 | return; | |
1069 | ||
1070 | /* Station client has higher priority over P2P client*/ | |
1071 | if (vif->p2p && data->beacon_device_ts) | |
1072 | return; | |
1073 | ||
1074 | data->beacon_device_ts = vif->bss_conf.sync_device_ts; | |
1075 | data->beacon_int = vif->bss_conf.beacon_int; | |
1076 | } | |
1077 | ||
8ca151b5 JB |
1078 | /* |
1079 | * Fill the specific data for mac context of type AP of P2P GO | |
1080 | */ | |
1081 | static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, | |
1082 | struct ieee80211_vif *vif, | |
186cd49a | 1083 | struct iwl_mac_ctx_cmd *cmd, |
506a81e6 JB |
1084 | struct iwl_mac_data_ap *ctxt_ap, |
1085 | bool add) | |
8ca151b5 JB |
1086 | { |
1087 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
3a3cb92e IP |
1088 | struct iwl_mvm_mac_ap_iterator_data data = { |
1089 | .mvm = mvm, | |
1090 | .vif = vif, | |
1091 | .beacon_device_ts = 0 | |
1092 | }; | |
8ca151b5 | 1093 | |
186cd49a JB |
1094 | /* in AP mode, the MCAST FIFO takes the EDCA params from VO */ |
1095 | cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |= BIT(IWL_MVM_TX_FIFO_MCAST); | |
1096 | ||
1097 | /* | |
1098 | * in AP mode, pass probe requests and beacons from other APs | |
1099 | * (needed for ht protection); when there're no any associated | |
1100 | * station don't ask FW to pass beacons to prevent unnecessary | |
1101 | * wake-ups. | |
1102 | */ | |
1103 | cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); | |
1104 | if (mvmvif->ap_assoc_sta_count || !mvm->drop_bcn_ap_mode) { | |
1105 | cmd->filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); | |
1106 | IWL_DEBUG_HC(mvm, "Asking FW to pass beacons\n"); | |
1107 | } else { | |
1108 | IWL_DEBUG_HC(mvm, "No need to receive beacons\n"); | |
1109 | } | |
1110 | ||
8ca151b5 | 1111 | ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int); |
8ca151b5 JB |
1112 | ctxt_ap->dtim_interval = cpu_to_le32(vif->bss_conf.beacon_int * |
1113 | vif->bss_conf.dtim_period); | |
8ca151b5 | 1114 | |
ced19f26 SS |
1115 | if (!fw_has_api(&mvm->fw->ucode_capa, |
1116 | IWL_UCODE_TLV_API_STA_TYPE)) | |
cfbc6c4c | 1117 | ctxt_ap->mcast_qid = cpu_to_le32(mvmvif->cab_queue); |
8ca151b5 | 1118 | |
506a81e6 | 1119 | /* |
3a3cb92e | 1120 | * Only set the beacon time when the MAC is being added, when we |
506a81e6 JB |
1121 | * just modify the MAC then we should keep the time -- the firmware |
1122 | * can otherwise have a "jumping" TBTT. | |
1123 | */ | |
3a3cb92e IP |
1124 | if (add) { |
1125 | /* | |
1126 | * If there is a station/P2P client interface which is | |
1127 | * associated, set the AP's TBTT far enough from the station's | |
1128 | * TBTT. Otherwise, set it to the current system time | |
1129 | */ | |
1130 | ieee80211_iterate_active_interfaces_atomic( | |
1131 | mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, | |
1132 | iwl_mvm_mac_ap_iterator, &data); | |
1133 | ||
1134 | if (data.beacon_device_ts) { | |
9f8f8ca5 | 1135 | u32 rand = (prandom_u32() % (64 - 36)) + 36; |
3a3cb92e IP |
1136 | mvmvif->ap_beacon_time = data.beacon_device_ts + |
1137 | ieee80211_tu_to_usec(data.beacon_int * rand / | |
1138 | 100); | |
1139 | } else { | |
afc1e3b4 | 1140 | mvmvif->ap_beacon_time = iwl_mvm_get_systime(mvm); |
3a3cb92e IP |
1141 | } |
1142 | } | |
506a81e6 JB |
1143 | |
1144 | ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time); | |
506a81e6 | 1145 | ctxt_ap->beacon_tsf = 0; /* unused */ |
8ca151b5 JB |
1146 | |
1147 | /* TODO: Assume that the beacon id == mac context id */ | |
1148 | ctxt_ap->beacon_template = cpu_to_le32(mvmvif->id); | |
1149 | } | |
1150 | ||
f82c8339 IP |
1151 | static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm, |
1152 | struct ieee80211_vif *vif, | |
1153 | u32 action) | |
8ca151b5 JB |
1154 | { |
1155 | struct iwl_mac_ctx_cmd cmd = {}; | |
1156 | ||
1157 | WARN_ON(vif->type != NL80211_IFTYPE_AP || vif->p2p); | |
1158 | ||
1159 | /* Fill the common data for all mac context types */ | |
3dfd3a97 | 1160 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
8ca151b5 JB |
1161 | |
1162 | /* Fill the data specific for ap mode */ | |
186cd49a | 1163 | iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.ap, |
506a81e6 | 1164 | action == FW_CTXT_ACTION_ADD); |
8ca151b5 JB |
1165 | |
1166 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); | |
1167 | } | |
1168 | ||
1169 | static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, | |
1170 | struct ieee80211_vif *vif, | |
1171 | u32 action) | |
1172 | { | |
1173 | struct iwl_mac_ctx_cmd cmd = {}; | |
67baf663 | 1174 | struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr; |
8ca151b5 JB |
1175 | |
1176 | WARN_ON(vif->type != NL80211_IFTYPE_AP || !vif->p2p); | |
1177 | ||
1178 | /* Fill the common data for all mac context types */ | |
3dfd3a97 | 1179 | iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, NULL, action); |
8ca151b5 JB |
1180 | |
1181 | /* Fill the data specific for GO mode */ | |
186cd49a | 1182 | iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd, &cmd.go.ap, |
506a81e6 | 1183 | action == FW_CTXT_ACTION_ADD); |
8ca151b5 | 1184 | |
67baf663 JD |
1185 | cmd.go.ctwin = cpu_to_le32(noa->oppps_ctwindow & |
1186 | IEEE80211_P2P_OPPPS_CTWINDOW_MASK); | |
1187 | cmd.go.opp_ps_enabled = | |
1188 | cpu_to_le32(!!(noa->oppps_ctwindow & | |
1189 | IEEE80211_P2P_OPPPS_ENABLE_BIT)); | |
8ca151b5 JB |
1190 | |
1191 | return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); | |
1192 | } | |
1193 | ||
1194 | static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
3dfd3a97 JB |
1195 | u32 action, bool force_assoc_off, |
1196 | const u8 *bssid_override) | |
8ca151b5 JB |
1197 | { |
1198 | switch (vif->type) { | |
1199 | case NL80211_IFTYPE_STATION: | |
cf52023c | 1200 | return iwl_mvm_mac_ctxt_cmd_sta(mvm, vif, action, |
3dfd3a97 JB |
1201 | force_assoc_off, |
1202 | bssid_override); | |
8ca151b5 JB |
1203 | break; |
1204 | case NL80211_IFTYPE_AP: | |
1205 | if (!vif->p2p) | |
1206 | return iwl_mvm_mac_ctxt_cmd_ap(mvm, vif, action); | |
1207 | else | |
1208 | return iwl_mvm_mac_ctxt_cmd_go(mvm, vif, action); | |
1209 | break; | |
1210 | case NL80211_IFTYPE_MONITOR: | |
1211 | return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action); | |
1212 | case NL80211_IFTYPE_P2P_DEVICE: | |
1213 | return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action); | |
5023d966 JB |
1214 | case NL80211_IFTYPE_ADHOC: |
1215 | return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action); | |
8ca151b5 JB |
1216 | default: |
1217 | break; | |
1218 | } | |
1219 | ||
1220 | return -EOPNOTSUPP; | |
1221 | } | |
1222 | ||
1223 | int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
1224 | { | |
1225 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1226 | int ret; | |
1227 | ||
1228 | if (WARN_ONCE(mvmvif->uploaded, "Adding active MAC %pM/%d\n", | |
1229 | vif->addr, ieee80211_vif_type_p2p(vif))) | |
1230 | return -EIO; | |
1231 | ||
bca49d9a | 1232 | ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD, |
3dfd3a97 | 1233 | true, NULL); |
8ca151b5 JB |
1234 | if (ret) |
1235 | return ret; | |
1236 | ||
6d9d32b8 JB |
1237 | /* will only do anything at resume from D3 time */ |
1238 | iwl_mvm_set_last_nonqos_seq(mvm, vif); | |
1239 | ||
8ca151b5 JB |
1240 | mvmvif->uploaded = true; |
1241 | return 0; | |
1242 | } | |
1243 | ||
bca49d9a | 1244 | int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
3dfd3a97 | 1245 | bool force_assoc_off, const u8 *bssid_override) |
8ca151b5 JB |
1246 | { |
1247 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1248 | ||
1249 | if (WARN_ONCE(!mvmvif->uploaded, "Changing inactive MAC %pM/%d\n", | |
1250 | vif->addr, ieee80211_vif_type_p2p(vif))) | |
1251 | return -EIO; | |
1252 | ||
bca49d9a | 1253 | return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY, |
3dfd3a97 | 1254 | force_assoc_off, bssid_override); |
8ca151b5 JB |
1255 | } |
1256 | ||
1257 | int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
1258 | { | |
1259 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1260 | struct iwl_mac_ctx_cmd cmd; | |
1261 | int ret; | |
1262 | ||
1263 | if (WARN_ONCE(!mvmvif->uploaded, "Removing inactive MAC %pM/%d\n", | |
1264 | vif->addr, ieee80211_vif_type_p2p(vif))) | |
1265 | return -EIO; | |
1266 | ||
1267 | memset(&cmd, 0, sizeof(cmd)); | |
1268 | ||
1269 | cmd.id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
1270 | mvmvif->color)); | |
1271 | cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); | |
1272 | ||
a1022927 | 1273 | ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, |
8ca151b5 JB |
1274 | sizeof(cmd), &cmd); |
1275 | if (ret) { | |
1276 | IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret); | |
1277 | return ret; | |
1278 | } | |
1279 | ||
1280 | mvmvif->uploaded = false; | |
fb8b8ee1 | 1281 | |
0e39eb03 | 1282 | if (vif->type == NL80211_IFTYPE_MONITOR) { |
30686bf7 | 1283 | __clear_bit(IEEE80211_HW_RX_INCLUDES_FCS, mvm->hw->flags); |
0e39eb03 CRI |
1284 | iwl_mvm_dealloc_snif_sta(mvm); |
1285 | } | |
fb8b8ee1 | 1286 | |
8ca151b5 JB |
1287 | return 0; |
1288 | } | |
571765c8 | 1289 | |
7f0a7c67 | 1290 | static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, |
7ef0aab6 AO |
1291 | struct ieee80211_vif *csa_vif, u32 gp2, |
1292 | bool tx_success) | |
7f0a7c67 AO |
1293 | { |
1294 | struct iwl_mvm_vif *mvmvif = | |
1295 | iwl_mvm_vif_from_mac80211(csa_vif); | |
1296 | ||
7ef0aab6 AO |
1297 | /* Don't start to countdown from a failed beacon */ |
1298 | if (!tx_success && !mvmvif->csa_countdown) | |
1299 | return; | |
1300 | ||
1301 | mvmvif->csa_countdown = true; | |
1302 | ||
8552a434 JC |
1303 | if (!ieee80211_beacon_cntdwn_is_complete(csa_vif)) { |
1304 | int c = ieee80211_beacon_update_cntdwn(csa_vif); | |
7f0a7c67 AO |
1305 | |
1306 | iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif); | |
1307 | if (csa_vif->p2p && | |
7ef0aab6 AO |
1308 | !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2 && |
1309 | tx_success) { | |
7f0a7c67 AO |
1310 | u32 rel_time = (c + 1) * |
1311 | csa_vif->bss_conf.beacon_int - | |
f991e17b | 1312 | IWL_MVM_CHANNEL_SWITCH_TIME_GO; |
7f0a7c67 AO |
1313 | u32 apply_time = gp2 + rel_time * 1024; |
1314 | ||
f991e17b LC |
1315 | iwl_mvm_schedule_csa_period(mvm, csa_vif, |
1316 | IWL_MVM_CHANNEL_SWITCH_TIME_GO - | |
1317 | IWL_MVM_CHANNEL_SWITCH_MARGIN, | |
1318 | apply_time); | |
7f0a7c67 AO |
1319 | } |
1320 | } else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { | |
1321 | /* we don't have CSA NoA scheduled yet, switch now */ | |
1322 | ieee80211_csa_finish(csa_vif); | |
1323 | RCU_INIT_POINTER(mvm->csa_vif, NULL); | |
1324 | } | |
1325 | } | |
1326 | ||
0416841d JB |
1327 | void iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, |
1328 | struct iwl_rx_cmd_buffer *rxb) | |
571765c8 IP |
1329 | { |
1330 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
2d2c0e9c | 1331 | struct iwl_extended_beacon_notif *beacon = (void *)pkt->data; |
15e28c78 | 1332 | struct iwl_extended_beacon_notif_v5 *beacon_v5 = (void *)pkt->data; |
664322fa | 1333 | struct ieee80211_vif *csa_vif; |
003e5236 | 1334 | struct ieee80211_vif *tx_blocked_vif; |
12db294c | 1335 | struct agg_tx_status *agg_status; |
7ef0aab6 | 1336 | u16 status; |
571765c8 | 1337 | |
bd3398e2 AO |
1338 | lockdep_assert_held(&mvm->mutex); |
1339 | ||
2d2c0e9c | 1340 | mvm->ap_last_beacon_gp2 = le32_to_cpu(beacon->gp2); |
15e28c78 EG |
1341 | |
1342 | if (!iwl_mvm_is_short_beacon_notif_supported(mvm)) { | |
1343 | struct iwl_mvm_tx_resp *beacon_notify_hdr = | |
1344 | &beacon_v5->beacon_notify_hdr; | |
1345 | ||
1346 | mvm->ibss_manager = beacon_v5->ibss_mgr_status != 0; | |
1347 | agg_status = iwl_mvm_get_agg_status(mvm, beacon_notify_hdr); | |
1348 | status = le16_to_cpu(agg_status->status) & TX_STATUS_MSK; | |
1349 | IWL_DEBUG_RX(mvm, | |
1350 | "beacon status %#x retries:%d tsf:0x%016llX gp2:0x%X rate:%d\n", | |
1351 | status, beacon_notify_hdr->failure_frame, | |
1352 | le64_to_cpu(beacon->tsf), | |
1353 | mvm->ap_last_beacon_gp2, | |
1354 | le32_to_cpu(beacon_notify_hdr->initial_rate)); | |
1355 | } else { | |
1356 | mvm->ibss_manager = beacon->ibss_mgr_status != 0; | |
1357 | status = le32_to_cpu(beacon->status) & TX_STATUS_MSK; | |
1358 | IWL_DEBUG_RX(mvm, | |
1359 | "beacon status %#x tsf:0x%016llX gp2:0x%X\n", | |
1360 | status, le64_to_cpu(beacon->tsf), | |
1361 | mvm->ap_last_beacon_gp2); | |
1362 | } | |
bd3398e2 | 1363 | |
664322fa AO |
1364 | csa_vif = rcu_dereference_protected(mvm->csa_vif, |
1365 | lockdep_is_held(&mvm->mutex)); | |
7f0a7c67 | 1366 | if (unlikely(csa_vif && csa_vif->csa_active)) |
7ef0aab6 AO |
1367 | iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2, |
1368 | (status == TX_STATUS_SUCCESS)); | |
bd3398e2 | 1369 | |
003e5236 AO |
1370 | tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, |
1371 | lockdep_is_held(&mvm->mutex)); | |
1372 | if (unlikely(tx_blocked_vif)) { | |
1373 | struct iwl_mvm_vif *mvmvif = | |
1374 | iwl_mvm_vif_from_mac80211(tx_blocked_vif); | |
1375 | ||
1376 | /* | |
1377 | * The channel switch is started and we have blocked the | |
1378 | * stations. If this is the first beacon (the timeout wasn't | |
1379 | * set), set the unblock timeout, otherwise countdown | |
1380 | */ | |
1381 | if (!mvm->csa_tx_block_bcn_timeout) | |
1382 | mvm->csa_tx_block_bcn_timeout = | |
1383 | IWL_MVM_CS_UNBLOCK_TX_TIMEOUT; | |
1384 | else | |
1385 | mvm->csa_tx_block_bcn_timeout--; | |
1386 | ||
1387 | /* Check if the timeout is expired, and unblock tx */ | |
1388 | if (mvm->csa_tx_block_bcn_timeout == 0) { | |
1389 | iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); | |
1390 | RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); | |
1391 | } | |
1392 | } | |
571765c8 | 1393 | } |
d64048ed | 1394 | |
698478c4 SS |
1395 | void iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, |
1396 | struct iwl_rx_cmd_buffer *rxb) | |
d64048ed | 1397 | { |
698478c4 SS |
1398 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
1399 | struct iwl_missed_beacons_notif *mb = (void *)pkt->data; | |
9d761fd8 EG |
1400 | struct iwl_fw_dbg_trigger_missed_bcon *bcon_trig; |
1401 | struct iwl_fw_dbg_trigger_tlv *trigger; | |
1402 | u32 stop_trig_missed_bcon, stop_trig_missed_bcon_since_rx; | |
1403 | u32 rx_missed_bcon, rx_missed_bcon_since_rx; | |
698478c4 SS |
1404 | struct ieee80211_vif *vif; |
1405 | u32 id = le32_to_cpu(mb->mac_id); | |
eae7550b | 1406 | union iwl_dbg_tlv_tp_data tp_data = { .fw_pkt = pkt }; |
d64048ed | 1407 | |
698478c4 SS |
1408 | IWL_DEBUG_INFO(mvm, |
1409 | "missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n", | |
1410 | le32_to_cpu(mb->mac_id), | |
1411 | le32_to_cpu(mb->consec_missed_beacons), | |
1412 | le32_to_cpu(mb->consec_missed_beacons_since_last_rx), | |
1413 | le32_to_cpu(mb->num_recvd_beacons), | |
1414 | le32_to_cpu(mb->num_expected_beacons)); | |
1415 | ||
1416 | rcu_read_lock(); | |
1417 | ||
1418 | vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true); | |
1419 | if (!vif) | |
1420 | goto out; | |
12d423e8 | 1421 | |
698478c4 | 1422 | rx_missed_bcon = le32_to_cpu(mb->consec_missed_beacons); |
9d761fd8 | 1423 | rx_missed_bcon_since_rx = |
698478c4 | 1424 | le32_to_cpu(mb->consec_missed_beacons_since_last_rx); |
12d423e8 IP |
1425 | /* |
1426 | * TODO: the threshold should be adjusted based on latency conditions, | |
1427 | * and/or in case of a CS flow on one of the other AP vifs. | |
1428 | */ | |
babea2d4 AO |
1429 | if (rx_missed_bcon > IWL_MVM_MISSED_BEACONS_THRESHOLD_LONG) |
1430 | iwl_mvm_connection_loss(mvm, vif, "missed beacons"); | |
1431 | else if (rx_missed_bcon_since_rx > IWL_MVM_MISSED_BEACONS_THRESHOLD) | |
d64048ed | 1432 | ieee80211_beacon_loss(vif); |
9d761fd8 | 1433 | |
b108d8c7 | 1434 | iwl_dbg_tlv_time_point(&mvm->fwrt, |
eae7550b | 1435 | IWL_FW_INI_TIME_POINT_MISSED_BEACONS, &tp_data); |
b108d8c7 | 1436 | |
6c042d75 SS |
1437 | trigger = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), |
1438 | FW_DBG_TRIGGER_MISSED_BEACONS); | |
1439 | if (!trigger) | |
698478c4 | 1440 | goto out; |
9d761fd8 | 1441 | |
9d761fd8 EG |
1442 | bcon_trig = (void *)trigger->data; |
1443 | stop_trig_missed_bcon = le32_to_cpu(bcon_trig->stop_consec_missed_bcon); | |
1444 | stop_trig_missed_bcon_since_rx = | |
1445 | le32_to_cpu(bcon_trig->stop_consec_missed_bcon_since_rx); | |
1446 | ||
1447 | /* TODO: implement start trigger */ | |
1448 | ||
9d761fd8 EG |
1449 | if (rx_missed_bcon_since_rx >= stop_trig_missed_bcon_since_rx || |
1450 | rx_missed_bcon >= stop_trig_missed_bcon) | |
7174beb6 | 1451 | iwl_fw_dbg_collect_trig(&mvm->fwrt, trigger, NULL); |
da2eb669 | 1452 | |
698478c4 SS |
1453 | out: |
1454 | rcu_read_unlock(); | |
d64048ed | 1455 | } |
0db056d3 SS |
1456 | |
1457 | void iwl_mvm_rx_stored_beacon_notif(struct iwl_mvm *mvm, | |
1458 | struct iwl_rx_cmd_buffer *rxb) | |
1459 | { | |
1460 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
1461 | struct iwl_stored_beacon_notif *sb = (void *)pkt->data; | |
1462 | struct ieee80211_rx_status rx_status; | |
1463 | struct sk_buff *skb; | |
1464 | u32 size = le32_to_cpu(sb->byte_count); | |
1465 | ||
1466 | if (size == 0) | |
1467 | return; | |
1468 | ||
1469 | skb = alloc_skb(size, GFP_ATOMIC); | |
1470 | if (!skb) { | |
1471 | IWL_ERR(mvm, "alloc_skb failed\n"); | |
1472 | return; | |
1473 | } | |
1474 | ||
1475 | /* update rx_status according to the notification's metadata */ | |
1476 | memset(&rx_status, 0, sizeof(rx_status)); | |
1477 | rx_status.mactime = le64_to_cpu(sb->tsf); | |
77fe7395 SS |
1478 | /* TSF as indicated by the firmware is at INA time */ |
1479 | rx_status.flag |= RX_FLAG_MACTIME_PLCP_START; | |
0db056d3 SS |
1480 | rx_status.device_timestamp = le32_to_cpu(sb->system_time); |
1481 | rx_status.band = | |
34118c25 | 1482 | (sb->band & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ? |
57fbcce3 | 1483 | NL80211_BAND_2GHZ : NL80211_BAND_5GHZ; |
0db056d3 SS |
1484 | rx_status.freq = |
1485 | ieee80211_channel_to_frequency(le16_to_cpu(sb->channel), | |
1486 | rx_status.band); | |
1487 | ||
1488 | /* copy the data */ | |
59ae1d12 | 1489 | skb_put_data(skb, sb->data, size); |
0db056d3 SS |
1490 | memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); |
1491 | ||
1492 | /* pass it as regular rx to mac80211 */ | |
d63b548f | 1493 | ieee80211_rx_napi(mvm->hw, NULL, skb, NULL); |
0db056d3 | 1494 | } |
d3a108a4 | 1495 | |
698478c4 SS |
1496 | void iwl_mvm_probe_resp_data_notif(struct iwl_mvm *mvm, |
1497 | struct iwl_rx_cmd_buffer *rxb) | |
86e177d8 | 1498 | { |
698478c4 SS |
1499 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
1500 | struct iwl_probe_resp_data_notif *notif = (void *)pkt->data; | |
86e177d8 | 1501 | struct iwl_probe_resp_data *old_data, *new_data; |
698478c4 SS |
1502 | int len = iwl_rx_packet_payload_len(pkt); |
1503 | u32 id = le32_to_cpu(notif->mac_id); | |
1504 | struct ieee80211_vif *vif; | |
1505 | struct iwl_mvm_vif *mvmvif; | |
1506 | ||
1507 | if (WARN_ON_ONCE(len < sizeof(*notif))) | |
1508 | return; | |
1509 | ||
1510 | IWL_DEBUG_INFO(mvm, "Probe response data notif: noa %d, csa %d\n", | |
1511 | notif->noa_active, notif->csa_counter); | |
86e177d8 | 1512 | |
698478c4 SS |
1513 | vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, false); |
1514 | if (!vif) | |
86e177d8 GG |
1515 | return; |
1516 | ||
698478c4 SS |
1517 | mvmvif = iwl_mvm_vif_from_mac80211(vif); |
1518 | ||
86e177d8 GG |
1519 | new_data = kzalloc(sizeof(*new_data), GFP_KERNEL); |
1520 | if (!new_data) | |
1521 | return; | |
1522 | ||
1523 | memcpy(&new_data->notif, notif, sizeof(new_data->notif)); | |
1524 | ||
1525 | /* noa_attr contains 1 reserved byte, need to substruct it */ | |
1526 | new_data->noa_len = sizeof(struct ieee80211_vendor_ie) + | |
1527 | sizeof(new_data->notif.noa_attr) - 1; | |
1528 | ||
1529 | /* | |
1530 | * If it's a one time NoA, only one descriptor is needed, | |
1531 | * adjust the length according to len_low. | |
1532 | */ | |
1533 | if (new_data->notif.noa_attr.len_low == | |
1534 | sizeof(struct ieee80211_p2p_noa_desc) + 2) | |
1535 | new_data->noa_len -= sizeof(struct ieee80211_p2p_noa_desc); | |
1536 | ||
1537 | old_data = rcu_dereference_protected(mvmvif->probe_resp_data, | |
1538 | lockdep_is_held(&mvmvif->mvm->mutex)); | |
1539 | rcu_assign_pointer(mvmvif->probe_resp_data, new_data); | |
1540 | ||
1541 | if (old_data) | |
1542 | kfree_rcu(old_data, rcu_head); | |
1543 | ||
1544 | if (notif->csa_counter != IWL_PROBE_RESP_DATA_NO_CSA && | |
1545 | notif->csa_counter >= 1) | |
8552a434 | 1546 | ieee80211_beacon_set_cntdwn(vif, notif->csa_counter); |
86e177d8 GG |
1547 | } |
1548 | ||
d3a108a4 AO |
1549 | void iwl_mvm_channel_switch_noa_notif(struct iwl_mvm *mvm, |
1550 | struct iwl_rx_cmd_buffer *rxb) | |
1551 | { | |
1552 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
1553 | struct iwl_channel_switch_noa_notif *notif = (void *)pkt->data; | |
74a10252 | 1554 | struct ieee80211_vif *csa_vif, *vif; |
d3a108a4 AO |
1555 | struct iwl_mvm_vif *mvmvif; |
1556 | int len = iwl_rx_packet_payload_len(pkt); | |
74a10252 | 1557 | u32 id_n_color, csa_id, mac_id; |
d3a108a4 AO |
1558 | |
1559 | if (WARN_ON_ONCE(len < sizeof(*notif))) | |
1560 | return; | |
1561 | ||
d3a108a4 | 1562 | id_n_color = le32_to_cpu(notif->id_and_color); |
74a10252 | 1563 | mac_id = id_n_color & FW_CTXT_ID_MSK; |
d3a108a4 | 1564 | |
74a10252 SS |
1565 | if (WARN_ON_ONCE(mac_id >= NUM_MAC_INDEX_DRIVER)) |
1566 | return; | |
d3a108a4 | 1567 | |
74a10252 SS |
1568 | rcu_read_lock(); |
1569 | vif = rcu_dereference(mvm->vif_id_to_mac[mac_id]); | |
f6780614 | 1570 | mvmvif = iwl_mvm_vif_from_mac80211(vif); |
d3a108a4 | 1571 | |
74a10252 SS |
1572 | switch (vif->type) { |
1573 | case NL80211_IFTYPE_AP: | |
1574 | csa_vif = rcu_dereference(mvm->csa_vif); | |
1575 | if (WARN_ON(!csa_vif || !csa_vif->csa_active || | |
1576 | csa_vif != vif)) | |
1577 | goto out_unlock; | |
d3a108a4 | 1578 | |
74a10252 SS |
1579 | csa_id = FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color); |
1580 | if (WARN(csa_id != id_n_color, | |
1581 | "channel switch noa notification on unexpected vif (csa_vif=%d, notif=%d)", | |
1582 | csa_id, id_n_color)) | |
1583 | goto out_unlock; | |
d3a108a4 | 1584 | |
74a10252 | 1585 | IWL_DEBUG_INFO(mvm, "Channel Switch Started Notification\n"); |
d3a108a4 | 1586 | |
74a10252 SS |
1587 | schedule_delayed_work(&mvm->cs_tx_unblock_dwork, |
1588 | msecs_to_jiffies(IWL_MVM_CS_UNBLOCK_TX_TIMEOUT * | |
1589 | csa_vif->bss_conf.beacon_int)); | |
d3a108a4 | 1590 | |
74a10252 | 1591 | ieee80211_csa_finish(csa_vif); |
d3a108a4 | 1592 | |
74a10252 SS |
1593 | rcu_read_unlock(); |
1594 | ||
1595 | RCU_INIT_POINTER(mvm->csa_vif, NULL); | |
1596 | return; | |
1597 | case NL80211_IFTYPE_STATION: | |
0202bcf0 EG |
1598 | if (!fw_has_capa(&mvm->fw->ucode_capa, |
1599 | IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) | |
1600 | iwl_mvm_csa_client_absent(mvm, vif); | |
11af74ad | 1601 | cancel_delayed_work(&mvmvif->csa_work); |
74a10252 SS |
1602 | ieee80211_chswitch_done(vif, true); |
1603 | break; | |
1604 | default: | |
1605 | /* should never happen */ | |
1606 | WARN_ON_ONCE(1); | |
1607 | break; | |
1608 | } | |
d3a108a4 AO |
1609 | out_unlock: |
1610 | rcu_read_unlock(); | |
1611 | } | |
449a29d0 LC |
1612 | |
1613 | void iwl_mvm_rx_missed_vap_notif(struct iwl_mvm *mvm, | |
1614 | struct iwl_rx_cmd_buffer *rxb) | |
1615 | { | |
1616 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
1617 | struct iwl_missed_vap_notif *mb = (void *)pkt->data; | |
1618 | struct ieee80211_vif *vif; | |
1619 | u32 id = le32_to_cpu(mb->mac_id); | |
1620 | ||
1621 | IWL_DEBUG_INFO(mvm, | |
1622 | "missed_vap notify mac_id=%u, num_beacon_intervals_elapsed=%u, profile_periodicity=%u\n", | |
1623 | le32_to_cpu(mb->mac_id), | |
1624 | mb->num_beacon_intervals_elapsed, | |
1625 | mb->profile_periodicity); | |
1626 | ||
1627 | rcu_read_lock(); | |
1628 | ||
1629 | vif = iwl_mvm_rcu_dereference_vif_id(mvm, id, true); | |
1630 | if (vif) | |
1631 | iwl_mvm_connection_loss(mvm, vif, "missed vap beacon"); | |
1632 | ||
1633 | rcu_read_unlock(); | |
1634 | } |