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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. |
c779273b | 9 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
3edfb5f4 | 10 | * Copyright(c) 2017 Intel Deutschland GmbH |
19125cb0 | 11 | * Copyright(c) 2018 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: | |
d01c5366 | 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. |
c779273b | 32 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
3edfb5f4 | 33 | * Copyright(c) 2017 Intel Deutschland GmbH |
19125cb0 | 34 | * Copyright(c) 2018 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/jiffies.h> | |
66 | #include <net/mac80211.h> | |
67 | ||
9fca9d5c | 68 | #include "fw/notif-wait.h" |
8ca151b5 JB |
69 | #include "iwl-trans.h" |
70 | #include "fw-api.h" | |
71 | #include "time-event.h" | |
72 | #include "mvm.h" | |
73 | #include "iwl-io.h" | |
74 | #include "iwl-prph.h" | |
75 | ||
e635c797 IP |
76 | /* |
77 | * For the high priority TE use a time event type that has similar priority to | |
78 | * the FW's action scan priority. | |
456f6ddf | 79 | */ |
e635c797 IP |
80 | #define IWL_MVM_ROC_TE_TYPE_NORMAL TE_P2P_DEVICE_DISCOVERABLE |
81 | #define IWL_MVM_ROC_TE_TYPE_MGMT_TX TE_P2P_CLIENT_ASSOC | |
456f6ddf | 82 | |
8ca151b5 JB |
83 | void iwl_mvm_te_clear_data(struct iwl_mvm *mvm, |
84 | struct iwl_mvm_time_event_data *te_data) | |
85 | { | |
86 | lockdep_assert_held(&mvm->time_event_lock); | |
87 | ||
00fd233a | 88 | if (!te_data->vif) |
8ca151b5 JB |
89 | return; |
90 | ||
91 | list_del(&te_data->list); | |
92 | te_data->running = false; | |
93 | te_data->uid = 0; | |
94 | te_data->id = TE_MAX; | |
95 | te_data->vif = NULL; | |
96 | } | |
97 | ||
98 | void iwl_mvm_roc_done_wk(struct work_struct *wk) | |
99 | { | |
100 | struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, roc_done_wk); | |
b112889c AM |
101 | |
102 | /* | |
103 | * Clear the ROC_RUNNING /ROC_AUX_RUNNING status bit. | |
104 | * This will cause the TX path to drop offchannel transmissions. | |
105 | * That would also be done by mac80211, but it is racy, in particular | |
106 | * in the case that the time event actually completed in the firmware | |
107 | * (which is handled in iwl_mvm_te_handle_notif). | |
108 | */ | |
d4e4aa7c | 109 | if (test_and_clear_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) |
c779273b | 110 | iwl_mvm_unref(mvm, IWL_MVM_REF_ROC); |
d4e4aa7c | 111 | if (test_and_clear_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status)) |
c779273b | 112 | iwl_mvm_unref(mvm, IWL_MVM_REF_ROC_AUX); |
8ca151b5 JB |
113 | |
114 | synchronize_net(); | |
115 | ||
116 | /* | |
117 | * Flush the offchannel queue -- this is called when the time | |
0d365ae5 | 118 | * event finishes or is canceled, so that frames queued for it |
8ca151b5 JB |
119 | * won't get stuck on the queue and be transmitted in the next |
120 | * time event. | |
121 | * We have to send the command asynchronously since this cannot | |
122 | * be under the mutex for locking reasons, but that's not an | |
123 | * issue as it will have to complete before the next command is | |
124 | * executed, and a new time event means a new command. | |
125 | */ | |
c8f54701 | 126 | iwl_mvm_flush_sta(mvm, &mvm->aux_sta, true, CMD_ASYNC); |
6c2d49fd JB |
127 | |
128 | /* Do the same for the P2P device queue (STA) */ | |
129 | if (test_and_clear_bit(IWL_MVM_STATUS_NEED_FLUSH_P2P, &mvm->status)) { | |
130 | struct iwl_mvm_vif *mvmvif; | |
131 | ||
132 | /* | |
133 | * NB: access to this pointer would be racy, but the flush bit | |
134 | * can only be set when we had a P2P-Device VIF, and we have a | |
135 | * flush of this work in iwl_mvm_prepare_mac_removal() so it's | |
136 | * not really racy. | |
137 | */ | |
138 | ||
139 | if (!WARN_ON(!mvm->p2p_device_vif)) { | |
140 | mvmvif = iwl_mvm_vif_from_mac80211(mvm->p2p_device_vif); | |
141 | iwl_mvm_flush_sta(mvm, &mvmvif->bcast_sta, true, | |
142 | CMD_ASYNC); | |
143 | } | |
144 | } | |
8ca151b5 JB |
145 | } |
146 | ||
147 | static void iwl_mvm_roc_finished(struct iwl_mvm *mvm) | |
148 | { | |
8ca151b5 JB |
149 | /* |
150 | * Of course, our status bit is just as racy as mac80211, so in | |
151 | * addition, fire off the work struct which will drop all frames | |
152 | * from the hardware queues that made it through the race. First | |
153 | * it will of course synchronize the TX path to make sure that | |
154 | * any *new* TX will be rejected. | |
155 | */ | |
156 | schedule_work(&mvm->roc_done_wk); | |
157 | } | |
158 | ||
7f0a7c67 AO |
159 | static void iwl_mvm_csa_noa_start(struct iwl_mvm *mvm) |
160 | { | |
161 | struct ieee80211_vif *csa_vif; | |
162 | ||
163 | rcu_read_lock(); | |
164 | ||
165 | csa_vif = rcu_dereference(mvm->csa_vif); | |
166 | if (!csa_vif || !csa_vif->csa_active) | |
167 | goto out_unlock; | |
168 | ||
169 | IWL_DEBUG_TE(mvm, "CSA NOA started\n"); | |
170 | ||
171 | /* | |
172 | * CSA NoA is started but we still have beacons to | |
173 | * transmit on the current channel. | |
174 | * So we just do nothing here and the switch | |
175 | * will be performed on the last TBTT. | |
176 | */ | |
177 | if (!ieee80211_csa_is_complete(csa_vif)) { | |
178 | IWL_WARN(mvm, "CSA NOA started too early\n"); | |
179 | goto out_unlock; | |
180 | } | |
181 | ||
182 | ieee80211_csa_finish(csa_vif); | |
183 | ||
184 | rcu_read_unlock(); | |
185 | ||
186 | RCU_INIT_POINTER(mvm->csa_vif, NULL); | |
187 | ||
188 | return; | |
189 | ||
190 | out_unlock: | |
191 | rcu_read_unlock(); | |
192 | } | |
193 | ||
05739794 JB |
194 | static bool iwl_mvm_te_check_disconnect(struct iwl_mvm *mvm, |
195 | struct ieee80211_vif *vif, | |
196 | const char *errmsg) | |
197 | { | |
19125cb0 AO |
198 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
199 | ||
05739794 JB |
200 | if (vif->type != NL80211_IFTYPE_STATION) |
201 | return false; | |
19125cb0 AO |
202 | |
203 | if (!mvmvif->csa_bcn_pending && vif->bss_conf.assoc && | |
204 | vif->bss_conf.dtim_period) | |
05739794 JB |
205 | return false; |
206 | if (errmsg) | |
207 | IWL_ERR(mvm, "%s\n", errmsg); | |
31755207 EG |
208 | |
209 | iwl_mvm_connection_loss(mvm, vif, errmsg); | |
05739794 JB |
210 | return true; |
211 | } | |
212 | ||
dc88b4ba LC |
213 | static void |
214 | iwl_mvm_te_handle_notify_csa(struct iwl_mvm *mvm, | |
215 | struct iwl_mvm_time_event_data *te_data, | |
216 | struct iwl_time_event_notif *notif) | |
217 | { | |
81d62d5a JB |
218 | struct ieee80211_vif *vif = te_data->vif; |
219 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
220 | ||
221 | if (!notif->status) | |
dc88b4ba | 222 | IWL_DEBUG_TE(mvm, "CSA time event failed to start\n"); |
dc88b4ba LC |
223 | |
224 | switch (te_data->vif->type) { | |
225 | case NL80211_IFTYPE_AP: | |
81d62d5a JB |
226 | if (!notif->status) |
227 | mvmvif->csa_failed = true; | |
dc88b4ba LC |
228 | iwl_mvm_csa_noa_start(mvm); |
229 | break; | |
230 | case NL80211_IFTYPE_STATION: | |
81d62d5a | 231 | if (!notif->status) { |
31755207 EG |
232 | iwl_mvm_connection_loss(mvm, vif, |
233 | "CSA TE failed to start"); | |
81d62d5a JB |
234 | break; |
235 | } | |
dc88b4ba | 236 | iwl_mvm_csa_client_absent(mvm, te_data->vif); |
622e3f9b | 237 | ieee80211_chswitch_done(te_data->vif, true); |
dc88b4ba LC |
238 | break; |
239 | default: | |
240 | /* should never happen */ | |
241 | WARN_ON_ONCE(1); | |
242 | break; | |
243 | } | |
244 | ||
245 | /* we don't need it anymore */ | |
246 | iwl_mvm_te_clear_data(mvm, te_data); | |
247 | } | |
248 | ||
874c174e EG |
249 | static void iwl_mvm_te_check_trigger(struct iwl_mvm *mvm, |
250 | struct iwl_time_event_notif *notif, | |
251 | struct iwl_mvm_time_event_data *te_data) | |
252 | { | |
253 | struct iwl_fw_dbg_trigger_tlv *trig; | |
254 | struct iwl_fw_dbg_trigger_time_event *te_trig; | |
255 | int i; | |
256 | ||
6c042d75 SS |
257 | trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, |
258 | ieee80211_vif_to_wdev(te_data->vif), | |
259 | FW_DBG_TRIGGER_TIME_EVENT); | |
260 | if (!trig) | |
874c174e EG |
261 | return; |
262 | ||
874c174e EG |
263 | te_trig = (void *)trig->data; |
264 | ||
874c174e EG |
265 | for (i = 0; i < ARRAY_SIZE(te_trig->time_events); i++) { |
266 | u32 trig_te_id = le32_to_cpu(te_trig->time_events[i].id); | |
267 | u32 trig_action_bitmap = | |
268 | le32_to_cpu(te_trig->time_events[i].action_bitmap); | |
269 | u32 trig_status_bitmap = | |
270 | le32_to_cpu(te_trig->time_events[i].status_bitmap); | |
271 | ||
272 | if (trig_te_id != te_data->id || | |
273 | !(trig_action_bitmap & le32_to_cpu(notif->action)) || | |
274 | !(trig_status_bitmap & BIT(le32_to_cpu(notif->status)))) | |
275 | continue; | |
276 | ||
7174beb6 JB |
277 | iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, |
278 | "Time event %d Action 0x%x received status: %d", | |
279 | te_data->id, | |
280 | le32_to_cpu(notif->action), | |
281 | le32_to_cpu(notif->status)); | |
874c174e EG |
282 | break; |
283 | } | |
284 | } | |
285 | ||
8ca151b5 JB |
286 | /* |
287 | * Handles a FW notification for an event that is known to the driver. | |
288 | * | |
289 | * @mvm: the mvm component | |
290 | * @te_data: the time event data | |
291 | * @notif: the notification data corresponding the time event data. | |
292 | */ | |
293 | static void iwl_mvm_te_handle_notif(struct iwl_mvm *mvm, | |
294 | struct iwl_mvm_time_event_data *te_data, | |
295 | struct iwl_time_event_notif *notif) | |
296 | { | |
297 | lockdep_assert_held(&mvm->time_event_lock); | |
298 | ||
299 | IWL_DEBUG_TE(mvm, "Handle time event notif - UID = 0x%x action %d\n", | |
300 | le32_to_cpu(notif->unique_id), | |
301 | le32_to_cpu(notif->action)); | |
302 | ||
874c174e EG |
303 | iwl_mvm_te_check_trigger(mvm, notif, te_data); |
304 | ||
8ca151b5 JB |
305 | /* |
306 | * The FW sends the start/end time event notifications even for events | |
307 | * that it fails to schedule. This is indicated in the status field of | |
308 | * the notification. This happens in cases that the scheduler cannot | |
309 | * find a schedule that can handle the event (for example requesting a | |
310 | * P2P Device discoveribility, while there are other higher priority | |
311 | * events in the system). | |
312 | */ | |
9fc3fe96 | 313 | if (!le32_to_cpu(notif->status)) { |
bcd535eb JB |
314 | const char *msg; |
315 | ||
316 | if (notif->action & cpu_to_le32(TE_V2_NOTIF_HOST_EVENT_START)) | |
317 | msg = "Time Event start notification failure"; | |
318 | else | |
319 | msg = "Time Event end notification failure"; | |
320 | ||
321 | IWL_DEBUG_TE(mvm, "%s\n", msg); | |
322 | ||
323 | if (iwl_mvm_te_check_disconnect(mvm, te_data->vif, msg)) { | |
05739794 JB |
324 | iwl_mvm_te_clear_data(mvm, te_data); |
325 | return; | |
326 | } | |
327 | } | |
8ca151b5 | 328 | |
f8f03c3e | 329 | if (le32_to_cpu(notif->action) & TE_V2_NOTIF_HOST_EVENT_END) { |
8ca151b5 JB |
330 | IWL_DEBUG_TE(mvm, |
331 | "TE ended - current time %lu, estimated end %lu\n", | |
332 | jiffies, te_data->end_jiffies); | |
333 | ||
bca13904 JB |
334 | switch (te_data->vif->type) { |
335 | case NL80211_IFTYPE_P2P_DEVICE: | |
8ca151b5 | 336 | ieee80211_remain_on_channel_expired(mvm->hw); |
4f1e85f0 | 337 | set_bit(IWL_MVM_STATUS_NEED_FLUSH_P2P, &mvm->status); |
8ca151b5 | 338 | iwl_mvm_roc_finished(mvm); |
bca13904 JB |
339 | break; |
340 | case NL80211_IFTYPE_STATION: | |
341 | /* | |
342 | * By now, we should have finished association | |
343 | * and know the dtim period. | |
344 | */ | |
345 | iwl_mvm_te_check_disconnect(mvm, te_data->vif, | |
19125cb0 | 346 | "No beacon heard and the time event is over already..."); |
bca13904 JB |
347 | break; |
348 | default: | |
349 | break; | |
8ca151b5 JB |
350 | } |
351 | ||
8ca151b5 | 352 | iwl_mvm_te_clear_data(mvm, te_data); |
f8f03c3e | 353 | } else if (le32_to_cpu(notif->action) & TE_V2_NOTIF_HOST_EVENT_START) { |
8ca151b5 | 354 | te_data->running = true; |
e7f1935c | 355 | te_data->end_jiffies = TU_TO_EXP_TIME(te_data->duration); |
8ca151b5 JB |
356 | |
357 | if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) { | |
358 | set_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status); | |
9f45c36d | 359 | iwl_mvm_ref(mvm, IWL_MVM_REF_ROC); |
8ca151b5 | 360 | ieee80211_ready_on_channel(mvm->hw); |
dc88b4ba LC |
361 | } else if (te_data->id == TE_CHANNEL_SWITCH_PERIOD) { |
362 | iwl_mvm_te_handle_notify_csa(mvm, te_data, notif); | |
8ca151b5 JB |
363 | } |
364 | } else { | |
365 | IWL_WARN(mvm, "Got TE with unknown action\n"); | |
366 | } | |
367 | } | |
368 | ||
b112889c AM |
369 | /* |
370 | * Handle A Aux ROC time event | |
371 | */ | |
372 | static int iwl_mvm_aux_roc_te_handle_notif(struct iwl_mvm *mvm, | |
373 | struct iwl_time_event_notif *notif) | |
374 | { | |
375 | struct iwl_mvm_time_event_data *te_data, *tmp; | |
376 | bool aux_roc_te = false; | |
377 | ||
378 | list_for_each_entry_safe(te_data, tmp, &mvm->aux_roc_te_list, list) { | |
379 | if (le32_to_cpu(notif->unique_id) == te_data->uid) { | |
380 | aux_roc_te = true; | |
381 | break; | |
382 | } | |
383 | } | |
384 | if (!aux_roc_te) /* Not a Aux ROC time event */ | |
385 | return -EINVAL; | |
386 | ||
874c174e EG |
387 | iwl_mvm_te_check_trigger(mvm, notif, te_data); |
388 | ||
b112889c | 389 | IWL_DEBUG_TE(mvm, |
5151ad95 | 390 | "Aux ROC time event notification - UID = 0x%x action %d (error = %d)\n", |
b112889c | 391 | le32_to_cpu(notif->unique_id), |
5151ad95 | 392 | le32_to_cpu(notif->action), le32_to_cpu(notif->status)); |
b112889c | 393 | |
5151ad95 MG |
394 | if (!le32_to_cpu(notif->status) || |
395 | le32_to_cpu(notif->action) == TE_V2_NOTIF_HOST_EVENT_END) { | |
b112889c AM |
396 | /* End TE, notify mac80211 */ |
397 | ieee80211_remain_on_channel_expired(mvm->hw); | |
398 | iwl_mvm_roc_finished(mvm); /* flush aux queue */ | |
399 | list_del(&te_data->list); /* remove from list */ | |
400 | te_data->running = false; | |
401 | te_data->vif = NULL; | |
402 | te_data->uid = 0; | |
a6cc5163 | 403 | te_data->id = TE_MAX; |
b112889c | 404 | } else if (le32_to_cpu(notif->action) == TE_V2_NOTIF_HOST_EVENT_START) { |
b112889c AM |
405 | set_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status); |
406 | te_data->running = true; | |
c779273b | 407 | iwl_mvm_ref(mvm, IWL_MVM_REF_ROC_AUX); |
b112889c AM |
408 | ieee80211_ready_on_channel(mvm->hw); /* Start TE */ |
409 | } else { | |
410 | IWL_DEBUG_TE(mvm, | |
411 | "ERROR: Unknown Aux ROC Time Event (action = %d)\n", | |
412 | le32_to_cpu(notif->action)); | |
413 | return -EINVAL; | |
414 | } | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
8ca151b5 JB |
419 | /* |
420 | * The Rx handler for time event notifications | |
421 | */ | |
0416841d JB |
422 | void iwl_mvm_rx_time_event_notif(struct iwl_mvm *mvm, |
423 | struct iwl_rx_cmd_buffer *rxb) | |
8ca151b5 JB |
424 | { |
425 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
426 | struct iwl_time_event_notif *notif = (void *)pkt->data; | |
427 | struct iwl_mvm_time_event_data *te_data, *tmp; | |
428 | ||
429 | IWL_DEBUG_TE(mvm, "Time event notification - UID = 0x%x action %d\n", | |
430 | le32_to_cpu(notif->unique_id), | |
431 | le32_to_cpu(notif->action)); | |
432 | ||
433 | spin_lock_bh(&mvm->time_event_lock); | |
b112889c AM |
434 | /* This time event is triggered for Aux ROC request */ |
435 | if (!iwl_mvm_aux_roc_te_handle_notif(mvm, notif)) | |
436 | goto unlock; | |
437 | ||
8ca151b5 JB |
438 | list_for_each_entry_safe(te_data, tmp, &mvm->time_event_list, list) { |
439 | if (le32_to_cpu(notif->unique_id) == te_data->uid) | |
440 | iwl_mvm_te_handle_notif(mvm, te_data, notif); | |
441 | } | |
b112889c | 442 | unlock: |
8ca151b5 | 443 | spin_unlock_bh(&mvm->time_event_lock); |
8ca151b5 JB |
444 | } |
445 | ||
d20d37bc LK |
446 | static bool iwl_mvm_te_notif(struct iwl_notif_wait_data *notif_wait, |
447 | struct iwl_rx_packet *pkt, void *data) | |
448 | { | |
449 | struct iwl_mvm *mvm = | |
450 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
451 | struct iwl_mvm_time_event_data *te_data = data; | |
452 | struct iwl_time_event_notif *resp; | |
453 | int resp_len = iwl_rx_packet_payload_len(pkt); | |
454 | ||
455 | if (WARN_ON(pkt->hdr.cmd != TIME_EVENT_NOTIFICATION)) | |
456 | return true; | |
457 | ||
458 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { | |
459 | IWL_ERR(mvm, "Invalid TIME_EVENT_NOTIFICATION response\n"); | |
460 | return true; | |
461 | } | |
462 | ||
463 | resp = (void *)pkt->data; | |
464 | ||
465 | /* te_data->uid is already set in the TIME_EVENT_CMD response */ | |
466 | if (le32_to_cpu(resp->unique_id) != te_data->uid) | |
467 | return false; | |
468 | ||
469 | IWL_DEBUG_TE(mvm, "TIME_EVENT_NOTIFICATION response - UID = 0x%x\n", | |
470 | te_data->uid); | |
471 | if (!resp->status) | |
472 | IWL_ERR(mvm, | |
473 | "TIME_EVENT_NOTIFICATION received but not executed\n"); | |
474 | ||
475 | return true; | |
476 | } | |
477 | ||
ffdf968d JB |
478 | static bool iwl_mvm_time_event_response(struct iwl_notif_wait_data *notif_wait, |
479 | struct iwl_rx_packet *pkt, void *data) | |
8ca151b5 JB |
480 | { |
481 | struct iwl_mvm *mvm = | |
482 | container_of(notif_wait, struct iwl_mvm, notif_wait); | |
483 | struct iwl_mvm_time_event_data *te_data = data; | |
8ca151b5 | 484 | struct iwl_time_event_resp *resp; |
65b30348 | 485 | int resp_len = iwl_rx_packet_payload_len(pkt); |
8ca151b5 | 486 | |
ffdf968d JB |
487 | if (WARN_ON(pkt->hdr.cmd != TIME_EVENT_CMD)) |
488 | return true; | |
8ca151b5 | 489 | |
65b30348 | 490 | if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { |
ffdf968d JB |
491 | IWL_ERR(mvm, "Invalid TIME_EVENT_CMD response\n"); |
492 | return true; | |
493 | } | |
8ca151b5 | 494 | |
ffdf968d | 495 | resp = (void *)pkt->data; |
e3722822 JB |
496 | |
497 | /* we should never get a response to another TIME_EVENT_CMD here */ | |
498 | if (WARN_ON_ONCE(le32_to_cpu(resp->id) != te_data->id)) | |
499 | return false; | |
500 | ||
ffdf968d JB |
501 | te_data->uid = le32_to_cpu(resp->unique_id); |
502 | IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n", | |
503 | te_data->uid); | |
504 | return true; | |
505 | } | |
8ca151b5 | 506 | |
ffdf968d JB |
507 | static int iwl_mvm_time_event_send_add(struct iwl_mvm *mvm, |
508 | struct ieee80211_vif *vif, | |
509 | struct iwl_mvm_time_event_data *te_data, | |
a373f67c | 510 | struct iwl_time_event_cmd *te_cmd) |
ffdf968d | 511 | { |
6eb031d2 | 512 | static const u16 time_event_response[] = { TIME_EVENT_CMD }; |
ffdf968d JB |
513 | struct iwl_notification_wait wait_time_event; |
514 | int ret; | |
515 | ||
516 | lockdep_assert_held(&mvm->mutex); | |
517 | ||
93630dc3 JB |
518 | IWL_DEBUG_TE(mvm, "Add new TE, duration %d TU\n", |
519 | le32_to_cpu(te_cmd->duration)); | |
520 | ||
ffdf968d JB |
521 | spin_lock_bh(&mvm->time_event_lock); |
522 | if (WARN_ON(te_data->id != TE_MAX)) { | |
523 | spin_unlock_bh(&mvm->time_event_lock); | |
524 | return -EIO; | |
525 | } | |
526 | te_data->vif = vif; | |
527 | te_data->duration = le32_to_cpu(te_cmd->duration); | |
528 | te_data->id = le32_to_cpu(te_cmd->id); | |
529 | list_add_tail(&te_data->list, &mvm->time_event_list); | |
530 | spin_unlock_bh(&mvm->time_event_lock); | |
531 | ||
532 | /* | |
533 | * Use a notification wait, which really just processes the | |
534 | * command response and doesn't wait for anything, in order | |
535 | * to be able to process the response and get the UID inside | |
536 | * the RX path. Using CMD_WANT_SKB doesn't work because it | |
537 | * stores the buffer and then wakes up this thread, by which | |
538 | * time another notification (that the time event started) | |
539 | * might already be processed unsuccessfully. | |
540 | */ | |
541 | iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event, | |
542 | time_event_response, | |
543 | ARRAY_SIZE(time_event_response), | |
544 | iwl_mvm_time_event_response, te_data); | |
545 | ||
a1022927 | 546 | ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, 0, |
a373f67c | 547 | sizeof(*te_cmd), te_cmd); |
ffdf968d JB |
548 | if (ret) { |
549 | IWL_ERR(mvm, "Couldn't send TIME_EVENT_CMD: %d\n", ret); | |
550 | iwl_remove_notification(&mvm->notif_wait, &wait_time_event); | |
551 | goto out_clear_te; | |
552 | } | |
8ca151b5 | 553 | |
ffdf968d JB |
554 | /* No need to wait for anything, so just pass 1 (0 isn't valid) */ |
555 | ret = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1); | |
556 | /* should never fail */ | |
557 | WARN_ON_ONCE(ret); | |
558 | ||
559 | if (ret) { | |
560 | out_clear_te: | |
561 | spin_lock_bh(&mvm->time_event_lock); | |
562 | iwl_mvm_te_clear_data(mvm, te_data); | |
563 | spin_unlock_bh(&mvm->time_event_lock); | |
564 | } | |
565 | return ret; | |
8ca151b5 JB |
566 | } |
567 | ||
568 | void iwl_mvm_protect_session(struct iwl_mvm *mvm, | |
569 | struct ieee80211_vif *vif, | |
016d27e1 | 570 | u32 duration, u32 min_duration, |
d20d37bc | 571 | u32 max_delay, bool wait_for_notif) |
8ca151b5 JB |
572 | { |
573 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
574 | struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data; | |
6eb031d2 | 575 | const u16 te_notif_response[] = { TIME_EVENT_NOTIFICATION }; |
d20d37bc | 576 | struct iwl_notification_wait wait_te_notif; |
a373f67c | 577 | struct iwl_time_event_cmd time_cmd = {}; |
8ca151b5 JB |
578 | |
579 | lockdep_assert_held(&mvm->mutex); | |
580 | ||
581 | if (te_data->running && | |
e7f1935c | 582 | time_after(te_data->end_jiffies, TU_TO_EXP_TIME(min_duration))) { |
8ca151b5 JB |
583 | IWL_DEBUG_TE(mvm, "We have enough time in the current TE: %u\n", |
584 | jiffies_to_msecs(te_data->end_jiffies - jiffies)); | |
585 | return; | |
586 | } | |
587 | ||
588 | if (te_data->running) { | |
589 | IWL_DEBUG_TE(mvm, "extend 0x%x: only %u ms left\n", | |
590 | te_data->uid, | |
591 | jiffies_to_msecs(te_data->end_jiffies - jiffies)); | |
592 | /* | |
593 | * we don't have enough time | |
594 | * cancel the current TE and issue a new one | |
595 | * Of course it would be better to remove the old one only | |
596 | * when the new one is added, but we don't care if we are off | |
597 | * channel for a bit. All we need to do, is not to return | |
598 | * before we actually begin to be on the channel. | |
599 | */ | |
600 | iwl_mvm_stop_session_protection(mvm, vif); | |
601 | } | |
602 | ||
8ca151b5 JB |
603 | time_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); |
604 | time_cmd.id_and_color = | |
605 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)); | |
606 | time_cmd.id = cpu_to_le32(TE_BSS_STA_AGGRESSIVE_ASSOC); | |
607 | ||
5bf12f60 | 608 | time_cmd.apply_time = cpu_to_le32(0); |
ffdf968d | 609 | |
f8f03c3e | 610 | time_cmd.max_frags = TE_V2_FRAG_NONE; |
016d27e1 | 611 | time_cmd.max_delay = cpu_to_le32(max_delay); |
8ca151b5 JB |
612 | /* TODO: why do we need to interval = bi if it is not periodic? */ |
613 | time_cmd.interval = cpu_to_le32(1); | |
8ca151b5 | 614 | time_cmd.duration = cpu_to_le32(duration); |
f8f03c3e EL |
615 | time_cmd.repeat = 1; |
616 | time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START | | |
1f6bf078 | 617 | TE_V2_NOTIF_HOST_EVENT_END | |
40d53f4a | 618 | TE_V2_START_IMMEDIATELY); |
8ca151b5 | 619 | |
d20d37bc LK |
620 | if (!wait_for_notif) { |
621 | iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd); | |
622 | return; | |
623 | } | |
624 | ||
625 | /* | |
626 | * Create notification_wait for the TIME_EVENT_NOTIFICATION to use | |
627 | * right after we send the time event | |
628 | */ | |
629 | iwl_init_notification_wait(&mvm->notif_wait, &wait_te_notif, | |
630 | te_notif_response, | |
631 | ARRAY_SIZE(te_notif_response), | |
632 | iwl_mvm_te_notif, te_data); | |
633 | ||
634 | /* If TE was sent OK - wait for the notification that started */ | |
635 | if (iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd)) { | |
636 | IWL_ERR(mvm, "Failed to add TE to protect session\n"); | |
637 | iwl_remove_notification(&mvm->notif_wait, &wait_te_notif); | |
638 | } else if (iwl_wait_notification(&mvm->notif_wait, &wait_te_notif, | |
639 | TU_TO_JIFFIES(max_delay))) { | |
640 | IWL_ERR(mvm, "Failed to protect session until TE\n"); | |
641 | } | |
8ca151b5 JB |
642 | } |
643 | ||
bf5da87f MG |
644 | static bool __iwl_mvm_remove_time_event(struct iwl_mvm *mvm, |
645 | struct iwl_mvm_time_event_data *te_data, | |
646 | u32 *uid) | |
8ca151b5 | 647 | { |
bf5da87f | 648 | u32 id; |
8ca151b5 JB |
649 | |
650 | /* | |
651 | * It is possible that by the time we got to this point the time | |
652 | * event was already removed. | |
653 | */ | |
654 | spin_lock_bh(&mvm->time_event_lock); | |
655 | ||
656 | /* Save time event uid before clearing its data */ | |
bf5da87f | 657 | *uid = te_data->uid; |
8ca151b5 JB |
658 | id = te_data->id; |
659 | ||
660 | /* | |
661 | * The clear_data function handles time events that were already removed | |
662 | */ | |
663 | iwl_mvm_te_clear_data(mvm, te_data); | |
664 | spin_unlock_bh(&mvm->time_event_lock); | |
665 | ||
666 | /* | |
667 | * It is possible that by the time we try to remove it, the time event | |
668 | * has already ended and removed. In such a case there is no need to | |
669 | * send a removal command. | |
670 | */ | |
671 | if (id == TE_MAX) { | |
bf5da87f MG |
672 | IWL_DEBUG_TE(mvm, "TE 0x%x has already ended\n", *uid); |
673 | return false; | |
8ca151b5 JB |
674 | } |
675 | ||
bf5da87f MG |
676 | return true; |
677 | } | |
678 | ||
679 | /* | |
680 | * Explicit request to remove a aux roc time event. The removal of a time | |
681 | * event needs to be synchronized with the flow of a time event's end | |
682 | * notification, which also removes the time event from the op mode | |
683 | * data structures. | |
684 | */ | |
685 | static void iwl_mvm_remove_aux_roc_te(struct iwl_mvm *mvm, | |
686 | struct iwl_mvm_vif *mvmvif, | |
687 | struct iwl_mvm_time_event_data *te_data) | |
688 | { | |
689 | struct iwl_hs20_roc_req aux_cmd = {}; | |
57e861d9 DS |
690 | u16 len = sizeof(aux_cmd) - iwl_mvm_chan_info_padding(mvm); |
691 | ||
bf5da87f MG |
692 | u32 uid; |
693 | int ret; | |
694 | ||
695 | if (!__iwl_mvm_remove_time_event(mvm, te_data, &uid)) | |
696 | return; | |
697 | ||
698 | aux_cmd.event_unique_id = cpu_to_le32(uid); | |
699 | aux_cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); | |
700 | aux_cmd.id_and_color = | |
701 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)); | |
702 | IWL_DEBUG_TE(mvm, "Removing BSS AUX ROC TE 0x%x\n", | |
703 | le32_to_cpu(aux_cmd.event_unique_id)); | |
704 | ret = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, | |
57e861d9 | 705 | len, &aux_cmd); |
bf5da87f MG |
706 | |
707 | if (WARN_ON(ret)) | |
708 | return; | |
709 | } | |
710 | ||
711 | /* | |
712 | * Explicit request to remove a time event. The removal of a time event needs to | |
713 | * be synchronized with the flow of a time event's end notification, which also | |
714 | * removes the time event from the op mode data structures. | |
715 | */ | |
716 | void iwl_mvm_remove_time_event(struct iwl_mvm *mvm, | |
717 | struct iwl_mvm_vif *mvmvif, | |
718 | struct iwl_mvm_time_event_data *te_data) | |
719 | { | |
720 | struct iwl_time_event_cmd time_cmd = {}; | |
721 | u32 uid; | |
722 | int ret; | |
723 | ||
724 | if (!__iwl_mvm_remove_time_event(mvm, te_data, &uid)) | |
725 | return; | |
726 | ||
8ca151b5 JB |
727 | /* When we remove a TE, the UID is to be set in the id field */ |
728 | time_cmd.id = cpu_to_le32(uid); | |
729 | time_cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); | |
730 | time_cmd.id_and_color = | |
731 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)); | |
732 | ||
733 | IWL_DEBUG_TE(mvm, "Removing TE 0x%x\n", le32_to_cpu(time_cmd.id)); | |
a1022927 | 734 | ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, 0, |
a373f67c | 735 | sizeof(time_cmd), &time_cmd); |
8ca151b5 JB |
736 | if (WARN_ON(ret)) |
737 | return; | |
738 | } | |
739 | ||
740 | void iwl_mvm_stop_session_protection(struct iwl_mvm *mvm, | |
741 | struct ieee80211_vif *vif) | |
742 | { | |
743 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
744 | struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data; | |
3edfb5f4 | 745 | u32 id; |
8ca151b5 JB |
746 | |
747 | lockdep_assert_held(&mvm->mutex); | |
3edfb5f4 AS |
748 | |
749 | spin_lock_bh(&mvm->time_event_lock); | |
750 | id = te_data->id; | |
751 | spin_unlock_bh(&mvm->time_event_lock); | |
752 | ||
753 | if (id != TE_BSS_STA_AGGRESSIVE_ASSOC) { | |
754 | IWL_DEBUG_TE(mvm, | |
755 | "don't remove TE with id=%u (not session protection)\n", | |
756 | id); | |
757 | return; | |
758 | } | |
759 | ||
8ca151b5 JB |
760 | iwl_mvm_remove_time_event(mvm, mvmvif, te_data); |
761 | } | |
762 | ||
8ca151b5 | 763 | int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
e635c797 | 764 | int duration, enum ieee80211_roc_type type) |
8ca151b5 JB |
765 | { |
766 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
767 | struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data; | |
a373f67c | 768 | struct iwl_time_event_cmd time_cmd = {}; |
8ca151b5 JB |
769 | |
770 | lockdep_assert_held(&mvm->mutex); | |
771 | if (te_data->running) { | |
772 | IWL_WARN(mvm, "P2P_DEVICE remain on channel already running\n"); | |
773 | return -EBUSY; | |
774 | } | |
775 | ||
8ca151b5 JB |
776 | time_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); |
777 | time_cmd.id_and_color = | |
778 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)); | |
e635c797 IP |
779 | |
780 | switch (type) { | |
781 | case IEEE80211_ROC_TYPE_NORMAL: | |
782 | time_cmd.id = cpu_to_le32(IWL_MVM_ROC_TE_TYPE_NORMAL); | |
783 | break; | |
784 | case IEEE80211_ROC_TYPE_MGMT_TX: | |
785 | time_cmd.id = cpu_to_le32(IWL_MVM_ROC_TE_TYPE_MGMT_TX); | |
786 | break; | |
787 | default: | |
788 | WARN_ONCE(1, "Got an invalid ROC type\n"); | |
789 | return -EINVAL; | |
790 | } | |
8ca151b5 JB |
791 | |
792 | time_cmd.apply_time = cpu_to_le32(0); | |
8ca151b5 JB |
793 | time_cmd.interval = cpu_to_le32(1); |
794 | ||
795 | /* | |
e635c797 | 796 | * The P2P Device TEs can have lower priority than other events |
8ca151b5 | 797 | * that are being scheduled by the driver/fw, and thus it might not be |
e635c797 IP |
798 | * scheduled. To improve the chances of it being scheduled, allow them |
799 | * to be fragmented, and in addition allow them to be delayed. | |
8ca151b5 | 800 | */ |
f8f03c3e | 801 | time_cmd.max_frags = min(MSEC_TO_TU(duration)/50, TE_V2_FRAG_ENDLESS); |
8ca151b5 JB |
802 | time_cmd.max_delay = cpu_to_le32(MSEC_TO_TU(duration/2)); |
803 | time_cmd.duration = cpu_to_le32(MSEC_TO_TU(duration)); | |
f8f03c3e EL |
804 | time_cmd.repeat = 1; |
805 | time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START | | |
1f6bf078 | 806 | TE_V2_NOTIF_HOST_EVENT_END | |
40d53f4a | 807 | TE_V2_START_IMMEDIATELY); |
8ca151b5 | 808 | |
ffdf968d | 809 | return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd); |
8ca151b5 JB |
810 | } |
811 | ||
305d236e | 812 | static struct iwl_mvm_time_event_data *iwl_mvm_get_roc_te(struct iwl_mvm *mvm) |
8ca151b5 | 813 | { |
8ca151b5 JB |
814 | struct iwl_mvm_time_event_data *te_data; |
815 | ||
816 | lockdep_assert_held(&mvm->mutex); | |
817 | ||
bf5da87f MG |
818 | spin_lock_bh(&mvm->time_event_lock); |
819 | ||
8ca151b5 JB |
820 | /* |
821 | * Iterate over the list of time events and find the time event that is | |
822 | * associated with a P2P_DEVICE interface. | |
823 | * This assumes that a P2P_DEVICE interface can have only a single time | |
824 | * event at any given time and this time event coresponds to a ROC | |
825 | * request | |
826 | */ | |
8ca151b5 | 827 | list_for_each_entry(te_data, &mvm->time_event_list, list) { |
305d236e EP |
828 | if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) |
829 | goto out; | |
bf5da87f MG |
830 | } |
831 | ||
ebf17ff9 JB |
832 | /* There can only be at most one AUX ROC time event, we just use the |
833 | * list to simplify/unify code. Remove it if it exists. | |
bf5da87f | 834 | */ |
ebf17ff9 JB |
835 | te_data = list_first_entry_or_null(&mvm->aux_roc_te_list, |
836 | struct iwl_mvm_time_event_data, | |
837 | list); | |
305d236e EP |
838 | out: |
839 | spin_unlock_bh(&mvm->time_event_lock); | |
840 | return te_data; | |
841 | } | |
842 | ||
843 | void iwl_mvm_cleanup_roc_te(struct iwl_mvm *mvm) | |
844 | { | |
845 | struct iwl_mvm_time_event_data *te_data; | |
846 | u32 uid; | |
847 | ||
848 | te_data = iwl_mvm_get_roc_te(mvm); | |
ebf17ff9 | 849 | if (te_data) |
305d236e EP |
850 | __iwl_mvm_remove_time_event(mvm, te_data, &uid); |
851 | } | |
bf5da87f | 852 | |
305d236e EP |
853 | void iwl_mvm_stop_roc(struct iwl_mvm *mvm) |
854 | { | |
855 | struct iwl_mvm_vif *mvmvif; | |
856 | struct iwl_mvm_time_event_data *te_data; | |
8ca151b5 | 857 | |
305d236e EP |
858 | te_data = iwl_mvm_get_roc_te(mvm); |
859 | if (!te_data) { | |
bf5da87f | 860 | IWL_WARN(mvm, "No remain on channel event\n"); |
8ca151b5 JB |
861 | return; |
862 | } | |
863 | ||
305d236e EP |
864 | mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif); |
865 | ||
6c2d49fd | 866 | if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) { |
bf5da87f | 867 | iwl_mvm_remove_time_event(mvm, mvmvif, te_data); |
6c2d49fd JB |
868 | set_bit(IWL_MVM_STATUS_NEED_FLUSH_P2P, &mvm->status); |
869 | } else { | |
bf5da87f | 870 | iwl_mvm_remove_aux_roc_te(mvm, mvmvif, te_data); |
6c2d49fd | 871 | } |
8ca151b5 JB |
872 | |
873 | iwl_mvm_roc_finished(mvm); | |
874 | } | |
7f0a7c67 | 875 | |
f991e17b LC |
876 | int iwl_mvm_schedule_csa_period(struct iwl_mvm *mvm, |
877 | struct ieee80211_vif *vif, | |
878 | u32 duration, u32 apply_time) | |
7f0a7c67 AO |
879 | { |
880 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
881 | struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data; | |
882 | struct iwl_time_event_cmd time_cmd = {}; | |
883 | ||
884 | lockdep_assert_held(&mvm->mutex); | |
885 | ||
886 | if (te_data->running) { | |
3edfb5f4 AS |
887 | u32 id; |
888 | ||
889 | spin_lock_bh(&mvm->time_event_lock); | |
890 | id = te_data->id; | |
891 | spin_unlock_bh(&mvm->time_event_lock); | |
892 | ||
893 | if (id == TE_CHANNEL_SWITCH_PERIOD) { | |
894 | IWL_DEBUG_TE(mvm, "CS period is already scheduled\n"); | |
895 | return -EBUSY; | |
896 | } | |
897 | ||
898 | /* | |
899 | * Remove the session protection time event to allow the | |
900 | * channel switch. If we got here, we just heard a beacon so | |
901 | * the session protection is not needed anymore anyway. | |
902 | */ | |
903 | iwl_mvm_remove_time_event(mvm, mvmvif, te_data); | |
7f0a7c67 AO |
904 | } |
905 | ||
906 | time_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); | |
907 | time_cmd.id_and_color = | |
908 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)); | |
f991e17b | 909 | time_cmd.id = cpu_to_le32(TE_CHANNEL_SWITCH_PERIOD); |
7f0a7c67 AO |
910 | time_cmd.apply_time = cpu_to_le32(apply_time); |
911 | time_cmd.max_frags = TE_V2_FRAG_NONE; | |
912 | time_cmd.duration = cpu_to_le32(duration); | |
913 | time_cmd.repeat = 1; | |
914 | time_cmd.interval = cpu_to_le32(1); | |
915 | time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START | | |
916 | TE_V2_ABSENCE); | |
40d53f4a AO |
917 | if (!apply_time) |
918 | time_cmd.policy |= cpu_to_le16(TE_V2_START_IMMEDIATELY); | |
7f0a7c67 AO |
919 | |
920 | return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd); | |
921 | } |